The upper part of the human body, or the front or upper part of the body of an animal, typically separated from the rest of the body by a neck, and containing the brain, mouth, and sense organs.
Soft tissue tumors or cancer arising from the mucosal surfaces of the LIP; oral cavity; PHARYNX; LARYNX; and cervical esophagus. Other sites included are the NOSE and PARANASAL SINUSES; SALIVARY GLANDS; THYROID GLAND and PARATHYROID GLANDS; and MELANOMA and non-melanoma skin cancers of the head and neck. (from Holland et al., Cancer Medicine, 4th ed, p1651)
Voluntary or involuntary motion of head that may be relative to or independent of body; includes animals and humans.
The hemispheric articular surface at the upper extremity of the thigh bone. (Stedman, 26th ed)
The anterior portion of the spermatozoon (SPERMATOZOA) that contains mainly the nucleus with highly compact CHROMATIN material.
Aseptic or avascular necrosis of the femoral head. The major types are idiopathic (primary), as a complication of fractures or dislocations, and LEGG-CALVE-PERTHES DISEASE.
Traumatic injuries to the cranium where the integrity of the skull is not compromised and no bone fragments or other objects penetrate the skull and dura mater. This frequently results in mechanical injury being transmitted to intracranial structures which may produce traumatic brain injuries, hemorrhage, or cranial nerve injury. (From Rowland, Merritt's Textbook of Neurology, 9th ed, p417)
Traumatic injuries involving the cranium and intracranial structures (i.e., BRAIN; CRANIAL NERVES; MENINGES; and other structures). Injuries may be classified by whether or not the skull is penetrated (i.e., penetrating vs. nonpenetrating) or whether there is an associated hemorrhage.
A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed)
Personal devices for protection of heads from impact, penetration from falling and flying objects, and from limited electric shock and burn.
The portion of the upper rounded extremity fitting into the glenoid cavity of the SCAPULA. (from Stedman, 27th ed)
Lice of the genus Pediculus, family Pediculidae. Pediculus humanus corporus is the human body louse and Pediculus humanus capitis is the human head louse.
Parasitic attack or subsistence on the skin by members of the order Phthiraptera, especially on humans by Pediculus humanus of the family Pediculidae. The hair of the head, eyelashes, and pubis is a frequent site of infestation. (From Dorland, 28th ed; Stedman, 26th ed)
A reflex wherein impulses are conveyed from the cupulas of the SEMICIRCULAR CANALS and from the OTOLITHIC MEMBRANE of the SACCULE AND UTRICLE via the VESTIBULAR NUCLEI of the BRAIN STEM and the median longitudinal fasciculus to the OCULOMOTOR NERVE nuclei. It functions to maintain a stable retinal image during head rotation by generating appropriate compensatory EYE MOVEMENTS.
Motion of an object in which either one or more points on a line are fixed. It is also the motion of a particle about a fixed point. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Fractures of the skull which may result from penetrating or nonpenetrating head injuries or rarely BONE DISEASES (see also FRACTURES, SPONTANEOUS). Skull fractures may be classified by location (e.g., SKULL FRACTURE, BASILAR), radiographic appearance (e.g., linear), or based upon cranial integrity (e.g., SKULL FRACTURE, DEPRESSED).
The part of a human or animal body connecting the HEAD to the rest of the body.
Head injuries which feature compromise of the skull and dura mater. These may result from gunshot wounds (WOUNDS, GUNSHOT), stab wounds (WOUNDS, STAB), and other forms of trauma.
The neck muscles consist of the platysma, splenius cervicis, sternocleidomastoid(eus), longus colli, the anterior, medius, and posterior scalenes, digastric(us), stylohyoid(eus), mylohyoid(eus), geniohyoid(eus), sternohyoid(eus), omohyoid(eus), sternothyroid(eus), and thyrohyoid(eus).
Voluntary or reflex-controlled movements of the eye.
A primitive form of vertebrate kidney that is found in adults of some primitive FISHES and in the embryos of more advanced fishes. In some species of fishes it contains phagocytic cells and is also a major site of HEMATOPOIESIS, analogous to the mammalian BONE MARROW.
An increase in the rate of speed.
The position or attitude of the body.
The portion of the optic nerve seen in the fundus with the ophthalmoscope. It is formed by the meeting of all the retinal ganglion cell axons as they enter the optic nerve.
An oval, bony chamber of the inner ear, part of the bony labyrinth. It is continuous with bony COCHLEA anteriorly, and SEMICIRCULAR CANALS posteriorly. The vestibule contains two communicating sacs (utricle and saccule) of the balancing apparatus. The oval window on its lateral wall is occupied by the base of the STAPES of the MIDDLE EAR.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
A nonspecific term used to describe transient alterations or loss of consciousness following closed head injuries. The duration of UNCONSCIOUSNESS generally lasts a few seconds, but may persist for several hours. Concussions may be classified as mild, intermediate, and severe. Prolonged periods of unconsciousness (often defined as greater than 6 hours in duration) may be referred to as post-traumatic coma (COMA, POST-HEAD INJURY). (From Rowland, Merritt's Textbook of Neurology, 9th ed, p418)
A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals.
Acute and chronic (see also BRAIN INJURIES, CHRONIC) injuries to the brain, including the cerebral hemispheres, CEREBELLUM, and BRAIN STEM. Clinical manifestations depend on the nature of injury. Diffuse trauma to the brain is frequently associated with DIFFUSE AXONAL INJURY or COMA, POST-TRAUMATIC. Localized injuries may be associated with NEUROBEHAVIORAL MANIFESTATIONS; HEMIPARESIS, or other focal neurologic deficits.
The measurement of the dimensions of the HEAD.
A scale that assesses the response to stimuli in patients with craniocerebral injuries. The parameters are eye opening, motor response, and verbal response.
A diverse superfamily of proteins that function as translocating proteins. They share the common characteristics of being able to bind ACTINS and hydrolyze MgATP. Myosins generally consist of heavy chains which are involved in locomotion, and light chains which are involved in regulation. Within the structure of myosin heavy chain are three domains: the head, the neck and the tail. The head region of the heavy chain contains the actin binding domain and MgATPase domain which provides energy for locomotion. The neck region is involved in binding the light-chains. The tail region provides the anchoring point that maintains the position of the heavy chain. The superfamily of myosins is organized into structural classes based upon the type and arrangement of the subunits they contain.
Three long canals (anterior, posterior, and lateral) of the bony labyrinth. They are set at right angles to each other and are situated posterosuperior to the vestibule of the bony labyrinth (VESTIBULAR LABYRINTH). The semicircular canals have five openings into the vestibule with one shared by the anterior and the posterior canals. Within the canals are the SEMICIRCULAR DUCTS.
The SKELETON of the HEAD including the FACIAL BONES and the bones enclosing the BRAIN.
Elements of limited time intervals, contributing to particular results or situations.
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.
Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.
Neoplasms of the SQUAMOUS EPITHELIAL CELLS. The concept does not refer to neoplasms located in tissue composed of squamous elements.
A general concept for tumors or cancer of any part of the EAR; the NOSE; the THROAT; and the PHARYNX. It is used when there is no specific heading.
The joint that is formed by the articulation of the head of FEMUR and the ACETABULUM of the PELVIS.
Awareness of oneself in relation to time, place and person.
Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.
General or unspecified injuries to the neck. It includes injuries to the skin, muscles, and other soft tissues of the neck.
The properties, processes, and behavior of biological systems under the action of mechanical forces.
A gelatinous membrane overlying the acoustic maculae of SACCULE AND UTRICLE. It contains minute crystalline particles (otoliths) of CALCIUM CARBONATE and protein on its outer surface. In response to head movement, the otoliths shift causing distortion of the vestibular hair cells which transduce nerve signals to the BRAIN for interpretation of equilibrium.
Systems for assessing, classifying, and coding injuries. These systems are used in medical records, surveillance systems, and state and national registries to aid in the collection and reporting of trauma.
Replacement for a hip joint.
Procedures and programs that facilitate the development or skill acquisition in infants and young children who have disabilities, who are at risk for developing disabilities, or who are gifted. It includes programs that are designed to prevent handicapping conditions in infants and young children and family-centered programs designed to affect the functioning of infants and children with special needs. (From Journal of Early Intervention, Editorial, 1989, vol. 13, no. 1, p. 3; A Discursive Dictionary of Health Care, prepared for the U.S. House of Representatives Committee on Interstate and Foreign Commerce, 1976)
Bone in humans and primates extending from the SHOULDER JOINT to the ELBOW JOINT.
An anatomic severity scale based on the Abbreviated Injury Scale (AIS) and developed specifically to score multiple traumatic injuries. It has been used as a predictor of mortality.
Cancers or tumors of the LARYNX or any of its parts: the GLOTTIS; EPIGLOTTIS; LARYNGEAL CARTILAGES; LARYNGEAL MUSCLES; and VOCAL CORDS.
Parts of the myosin molecule resulting from cleavage by proteolytic enzymes (PAPAIN; TRYPSIN; or CHYMOTRYPSIN) at well-localized regions. Study of these isolated fragments helps to delineate the functional roles of different parts of myosin. Two of the most common subfragments are myosin S-1 and myosin S-2. S-1 contains the heads of the heavy chains plus the light chains and S-2 contains part of the double-stranded, alpha-helical, heavy chain tail (myosin rod).
A particular type of FEMUR HEAD NECROSIS occurring in children, mainly male, with a course of four years or so.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Loss of the ability to maintain awareness of self and environment combined with markedly reduced responsiveness to environmental stimuli. (From Adams et al., Principles of Neurology, 6th ed, pp344-5)
A hinge joint connecting the FOREARM to the ARM.
Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.
The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used.
Accidents on streets, roads, and highways involving drivers, passengers, pedestrians, or vehicles. Traffic accidents refer to AUTOMOBILES (passenger cars, buses, and trucks), BICYCLING, and MOTORCYCLES but not OFF-ROAD MOTOR VEHICLES; RAILROADS nor snowmobiles.
The posterior filiform portion of the spermatozoon (SPERMATOZOA) that provides sperm motility.
The surgical cutting of a bone. (Dorland, 28th ed)
Replacement of the hip joint.
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.
An inorganic and water-soluble platinum complex. After undergoing hydrolysis, it reacts with DNA to produce both intra and interstrand crosslinks. These crosslinks appear to impair replication and transcription of DNA. The cytotoxicity of cisplatin correlates with cellular arrest in the G2 phase of the cell cycle.
Involuntary movements of the eye that are divided into two types, jerk and pendular. Jerk nystagmus has a slow phase in one direction followed by a corrective fast phase in the opposite direction, and is usually caused by central or peripheral vestibular dysfunction. Pendular nystagmus features oscillations that are of equal velocity in both directions and this condition is often associated with visual loss early in life. (Adams et al., Principles of Neurology, 6th ed, p272)
Tumors or cancer of the PHARYNX.
The vestibular part of the 8th cranial nerve (VESTIBULOCOCHLEAR NERVE). The vestibular nerve fibers arise from neurons of Scarpa's ganglion and project peripherally to vestibular hair cells and centrally to the VESTIBULAR NUCLEI of the BRAIN STEM. These fibers mediate the sense of balance and head position.
A symptom, not a disease, of a twisted neck. In most instances, the head is tipped toward one side and the chin rotated toward the other. The involuntary muscle contractions in the neck region of patients with torticollis can be due to congenital defects, trauma, inflammation, tumors, and neurological or other factors.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
The positioning and accommodation of eyes that allows the image to be brought into place on the FOVEA CENTRALIS of each eye.
Tumors or cancer of the OROPHARYNX.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
The part of the pelvis that comprises the pelvic socket where the head of FEMUR joins to form HIP JOINT (acetabulofemoral joint).
Specific alloys not less than 85% chromium and nickel or cobalt, with traces of either nickel or cobalt, molybdenum, and other substances. They are used in partial dentures, orthopedic implants, etc.
The processes occurring in early development that direct morphogenesis. They specify the body plan ensuring that cells will proceed to differentiate, grow, and diversify in size and shape at the correct relative positions. Included are axial patterning, segmentation, compartment specification, limb position, organ boundary patterning, blood vessel patterning, etc.
The storing or preserving of video signals for television to be played back later via a transmitter or receiver. Recordings may be made on magnetic tape or discs (VIDEODISC RECORDING).
Decreased salivary flow.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
A number of tests used to determine if the brain or balance portion of the inner ear are causing dizziness.
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism.
Histochemical localization of immunoreactive substances using labeled antibodies as reagents.
Malfunction of implantation shunts, valves, etc., and prosthesis loosening, migration, and breaking.
The use of IONIZING RADIATION to treat malignant NEOPLASMS and some benign conditions.
The development of anatomical structures to create the form of a single- or multi-cell organism. Morphogenesis provides form changes of a part, parts, or the whole organism.
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
An infant during the first month after birth.
A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.
Tumors or cancer of the MOUTH.
Involuntary rhythmical movements of the eyes in the normal person. These can be naturally occurring as in end-position (end-point, end-stage, or deviational) nystagmus or induced by the optokinetic drum (NYSTAGMUS, OPTOKINETIC), caloric test, or a rotating chair.
A two-person sport in which the fists are skillfully used to attack and defend.
Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.
The plan and delineation of prostheses in general or a specific prosthesis.
Accumulation of blood in the SUBDURAL SPACE between the DURA MATER and the arachnoidal layer of the MENINGES. This condition primarily occurs over the surface of a CEREBRAL HEMISPHERE, but may develop in the spinal canal (HEMATOMA, SUBDURAL, SPINAL). Subdural hematoma can be classified as the acute or the chronic form, with immediate or delayed symptom onset, respectively. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.
Pathological processes of the VESTIBULAR LABYRINTH which contains part of the balancing apparatus. Patients with vestibular diseases show instability and are at risk of frequent falls.
Displacement of the femur bone from its normal position at the HIP JOINT.
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
The distance and direction to which a bone joint can be extended. Range of motion is a function of the condition of the joints, muscles, and connective tissues involved. Joint flexibility can be improved through appropriate MUSCLE STRETCHING EXERCISES.
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories.
The excision of the head of the pancreas and the encircling loop of the duodenum to which it is connected.
General or unspecified injuries to the soft tissue or bony portions of the face.
The outer shorter of the two bones of the FOREARM, lying parallel to the ULNA and partially revolving around it.
Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.
Death of a bone or part of a bone, either atraumatic or posttraumatic.
The total amount of radiation absorbed by tissues as a result of radiotherapy.
Injuries incurred during participation in competitive or non-competitive sports.

A Wnt5a pathway underlies outgrowth of multiple structures in the vertebrate embryo. (1/1895)

Morphogenesis depends on the precise control of basic cellular processes such as cell proliferation and differentiation. Wnt5a may regulate these processes since it is expressed in a gradient at the caudal end of the growing embryo during gastrulation, and later in the distal-most aspect of several structures that extend from the body. A loss-of-function mutation of Wnt5a leads to an inability to extend the A-P axis due to a progressive reduction in the size of caudal structures. In the limbs, truncation of the proximal skeleton and absence of distal digits correlates with reduced proliferation of putative progenitor cells within the progress zone. However, expression of progress zone markers, and several genes implicated in distal outgrowth and patterning including Distalless, Hoxd and Fgf family members was not altered. Taken together with the outgrowth defects observed in the developing face, ears and genitals, our data indicates that Wnt5a regulates a pathway common to many structures whose development requires extension from the primary body axis. The reduced number of proliferating cells in both the progress zone and the primitive streak mesoderm suggests that one function of Wnt5a is to regulate the proliferation of progenitor cells.  (+info)

Cardiovascular and neuronal responses to head stimulation reflect central sensitization and cutaneous allodynia in a rat model of migraine. (2/1895)

Reduction of the threshold of cardiovascular and neuronal responses to facial and intracranial stimulation reflects central sensitization and cutaneous allodynia in a rat model of migraine. Current theories propose that migraine pain is caused by chemical activation of meningeal perivascular fibers. We previously found that chemical irritation of the dura causes trigeminovascular fibers innervating the dura and central trigeminal neurons receiving convergent input from the dura and skin to respond to low-intensity mechanical and thermal stimuli that previously induced minimal or no responses. One conclusion of these studies was that when low- and high-intensity stimuli induce responses of similar magnitude in nociceptive neurons, low-intensity stimuli must be as painful as the high-intensity stimuli. The present study investigates in anesthetized rats the significance of the changes in the responses of central trigeminal neurons (i.e., in nucleus caudalis) by correlating them with the occurrence and type of the simultaneously recorded cardiovascular responses. Before chemical stimulation of the dura, simultaneous increases in neuronal firing rates and blood pressure were induced by dural indentation with forces >/= 2.35 g and by noxious cutaneous stimuli such as pinching the skin and warming > 46 degrees C. After chemical stimulation, similar neuronal responses and blood pressure increases were evoked by much smaller forces for dural indentation and by innocuous cutaneous stimuli such as brushing the skin and warming it to >/= 43 degrees C. The onsets of neuronal responses preceded the onsets of depressor responses by 1.7 s and pressor responses by 4.0 s. The duration of neuronal responses was 15 s, whereas the duration of depressor responses was shorter (5.8 s) and pressor responses longer (22.7 s) than the neuronal responses. We conclude that the facilitated cardiovascular and central trigeminal neuronal responses to innocuous stimulation of the skin indicate that when dural stimulation induces central sensitization, innocuous stimuli are as nociceptive as noxious stimuli had been before dural stimulation and that a similar process might occur during the development of cutaneous allodynia during migraine.  (+info)

Otx expression during lamprey embryogenesis provides insights into the evolution of the vertebrate head and jaw. (3/1895)

Agnathan or jawless vertebrates, such as lampreys, occupy a critical phylogenetic position between the gnathostome or jawed vertebrates and the cephalochordates, represented by amphioxus. In order to gain insight into the evolution of the vertebrate head, we have cloned and characterized a homolog of the head-specific gene Otx from the lamprey Petromyzon marinus. This lamprey Otx gene is a clear phylogenetic outgroup to both the gnathostome Otx1 and Otx2 genes. Like its gnathostome counterparts, lamprey Otx is expressed throughout the presumptive forebrain and midbrain. Together, these results indicate that the divergence of Otx1 and Otx2 took place after the gnathostome/agnathan divergence and does not correlate with the origin of the vertebrate brain. Intriguingly, Otx is also expressed in the cephalic neural crest cells as well as mesenchymal and endodermal components of the first pharyngeal arch in lampreys, providing molecular evidence of homology with the gnathostome mandibular arch and insights into the evolution of the gnathostome jaw.  (+info)

Expression and developmental regulation of the Hydra-RFamide and Hydra-LWamide preprohormone genes in Hydra: evidence for transient phases of head formation. (4/1895)

Hydra magnipapillata has three distinct genes coding for preprohormones A, B, and C, each yielding a characteristic set of Hydra-RFamide (Arg-Phe-NH2) neuropeptides, and a fourth gene coding for a preprohormone that yields various Hydra-LWamide (Leu-Trp-NH2) neuropeptides. Using a whole-mount double-labeling in situ hybridization technique, we found that each of the four genes is specifically expressed in a different subset of neurons in the ectoderm of adult Hydra. The preprohormone A gene is expressed in neurons of the tentacles, hypostome (a region between tentacles and mouth opening), upper gastric region, and peduncle (an area just above the foot). The preprohormone B gene is exclusively expressed in neurons of the hypostome, whereas the preprohormone C gene is exclusively expressed in neurons of the tentacles. The Hydra-LWamide preprohormone gene is expressed in neurons located in all parts of Hydra with maxima in tentacles, hypostome, and basal disk (foot). Studies on animals regenerating a head showed that the prepro-Hydra-LWamide gene is expressed first, followed by the preprohormone A and subsequently the preprohormone C and the preprohormone B genes. This sequence of events could be explained by a model based on positional values in a morphogen gradient. Our head-regeneration experiments also give support for transient phases of head formation: first tentacle-specific preprohormone C neurons (frequently associated with a small tentacle bud) appear at the center of the regenerating tip, which they are then replaced by hypostome-specific preprohormone B neurons. Thus, the regenerating tip first attains a tentacle-like appearance and only later this tip develops into a hypostome. In a developing bud of Hydra, tentacle-specific preprohormone C neurons and hypostome-specific preprohormone B neurons appear about simultaneously in their correct positions, but during a later phase of head development, additional tentacle-specific preprohormone C neurons appear as a ring at the center of the hypostome and then disappear again. Nerve-free Hydra consisting of only epithelial cells do not express the preprohormone A, B, or C or the LWamide preprohormone genes. These animals, however, have a normal phenotype, showing that the preprohormone A, B, and C and the LWamide genes are not essential for the basic pattern formation of Hydra.  (+info)

The head inducer Cerberus is a multifunctional antagonist of Nodal, BMP and Wnt signals. (5/1895)

Embryological and genetic evidence indicates that the vertebrate head is induced by a different set of signals from those that organize trunk-tail development. The gene cerberus encodes a secreted protein that is expressed in anterior endoderm and has the unique property of inducing ectopic heads in the absence of trunk structures. Here we show that the cerberus protein functions as a multivalent growth-factor antagonist in the extracellular space: it binds to Nodal, BMP and Wnt proteins via independent sites. The expression of cerberus during gastrulation is activated by earlier nodal-related signals in endoderm and by Spemann-organizer factors that repress signalling by BMP and Wnt. In order for the head territory to form, we propose that signals involved in trunk development, such as those involving BMP, Wnt and Nodal proteins, must be inhibited in rostral regions.  (+info)

Goosecoid and mix.1 repress Brachyury expression and are required for head formation in Xenopus. (6/1895)

The Xenopus homologue of Brachyury, Xbra, is expressed in the presumptive mesoderm of the early gastrula. Induction of Xbra in animal pole tissue by activin occurs only in a narrow window of activin concentrations; if the level of inducer is too high, or too low, the gene is not expressed. Previously, we have suggested that the suppression of Xbra by high concentrations of activin is due to the action of genes such as goosecoid and Mix.1. Here, we examine the roles played by goosecoid and Mix.1 during normal development, first in the control of Xbra expression and then in the formation of the mesendoderm. Consistent with the model outlined above, inhibition of the function of either gene product leads to transient ectopic expression of Xbra. Such embryos later develop dorsoanterior defects and, in the case of interference with Mix.1, additional defects in heart and gut formation. Goosecoid, a transcriptional repressor, appears to act directly on transcription of Xbra. In contrast, Mix.1, which functions as a transcriptional activator, may act on Xbra indirectly, in part through activation of goosecoid.  (+info)

MIRD Pamphlet No. 15: Radionuclide S values in a revised dosimetric model of the adult head and brain. Medical Internal Radiation Dose. (7/1895)

Current dosimetric models of the brain and head lack the anatomic detail needed to provide the physical data necessary for suborgan brain dosimetry. During the last decade, several new radiopharmaceuticals have been introduced for brain imaging. The marked differences of these tracers in tissue specificity within the brain and their increasing use for diagnostic studies support the need for a more anthropomorphic model of the human brain and head for use in estimating regional absorbed dose within the brain and its adjacent structures. METHODS: A new brain model has been developed that includes eight subregions: the caudate nuclei, the cerebellum, the cerebral cortex, the lateral ventricles, the lentiform nuclei, the thalami, the third ventricle and the white matter. This brain model is incorporated within a total revision of the head model presented in MIRD Pamphlet No. 5 Revised. Modifications include the addition of the eyes, the teeth, the mandible, an upper facial region, a neck region and the cerebrospinal fluid within both the cranial and spinal regions. RESULTS: Absorbed fractions of energy for photon and electron sources located in 14 source regions within the new model were calculated using the EGS4 Monte Carlo radiation transport code for particles in the energy range 10 keV-4 MeV. These absorbed fractions were then used along with radionuclide decay data to generate S values for 24 radionuclides that are used in clinical or investigational studies of the brain, 12 radionuclides that localize within the cranium and spinal skeleton and 12 radionuclides that selectively localize in the thyroid gland. CONCLUSION: A substantial revision to the dosimetric model of the adult head and brain originally published in MIRD Pamphlet No. 5 Revised is presented. This revision supports suborgan brain dosimetry for a variety of radiopharmaceuticals used in neuroimaging. Dose calculations for the neuroimaging agent 1231-tropane provide an example of the new model and yield mean brain doses that are consistent with published values. However, the absorbed dose to subregions within the brain such as the caudate and lentiform nuclei may exceed the average brain dose by a factor of up to 5.  (+info)

Myotube heterogeneity in developing chick craniofacial skeletal muscles. (8/1895)

Avian skeletal muscles consist of myotubes that can be categorized according to contraction and fatigue properties, which are based largely on the types of myosins and metabolic enzymes present in the cells. Most mature muscles in the head are mixed, but they display a variety of ratios and distributions of fast and slow muscle cells. We examine the development of all head muscles in chick and quail embryos, using immunohistochemical assays that distinguish between fast and slow myosin heavy chain (MyHC) isoforms. Some muscles exhibit the mature spatial organization from the onset of primary myotube differentiation (e.g., jaw adductor complex). Many other muscles undergo substantial transformation during the transition from primary to secondary myogenesis, becoming mixed after having started as exclusively slow (e.g., oculorotatory, neck muscles) or fast (e.g., mandibular depressor) myotube populations. A few muscles are comprised exclusively of fast myotubes throughout their development and in the adult (e.g., the quail quadratus and pyramidalis muscles, chick stylohyoideus muscles). Most developing quail and chick head muscles exhibit identical fiber type composition; exceptions include the genioglossal (chick: initially slow, quail: mixed), quadratus and pyramidalis (chick: mixed, quail: fast), and stylohyoid (chick: fast, quail: mixed). The great diversity of spatial and temporal scenarios during myogenesis of head muscles exceeds that observed in the limbs and trunk, and these observations, coupled with the results of precursor mapping studies, make it unlikely that a lineage based model, in which individual myoblasts are restricted to fast or slow fates, is in operation. More likely, spatiotemporal patterning of muscle fiber types is coupled with the interactions that direct the movements of muscle precursors and subsequent segregation of individual muscles from common myogenic condensations. In the head, most of these events are facilitated by connective tissue precursors derived from the neural crest. Whether these influences act upon uncommitted, or biased but not restricted, myogenic mesenchymal cells remains to be tested.  (+info)

TY - JOUR. T1 - A positive role of Patched-Smoothened signaling in promoting cell proliferation during normal head development in Drosophila. AU - Shyamala, Baragur V.. AU - Bhat, Krishna M.. PY - 2002. Y1 - 2002. N2 - The transmembrane receptor Patched regulates several developmental processes in both invertebrates and vertebrates. In vertebrates, Patched also acts as a tumor suppressor. The Patched pathway normally operates by negatively regulating Smoothened, a G-protein-coupled receptor; binding of Hedgehog ligand to Patched relieves this negative interaction and allows signaling by Smoothened. We show that Ptc regulates Drosophila head development by promoting cell proliferation in the eye-antennal disc. During head morphogenesis, Patched positively interacts with Smoothened, which leads to the activation of Activin type I receptor Baboon and stimulation of cell proliferation in the eye-antennal disc. Thus, loss of Ptc or Smoothened activity affects cell proliferation in the eye-antennal ...
EVALUATION OF TWO REFERENCE PLANES TO THE HORIZON IN THE NATURAL HEAD POSITION By: David M. Allport, D.D.S. Dental casts are mounted to dental articulators using anatomical records in order to simulate and duplicate static and dynamic interocclusal relationships. The three dimensional relationship of the maxillary arch to the transverse horizontal axis of the mandible is defined by establishing a third point of reference. The most common reference plane is the Frankfort horizontal plane, which is theoretically parallel to the horizon when the patient is in the natural head position. 1 The HIP [hamular notch incisive papilla] plane has also been proposed as a true horizontal reference plane for orienting the maxillary cast to the articulator. 2 The purpose of this study was to examine the relationship of the Frankfort horizontal plane and the HIP plane to the horizontal when the patient is in the natural head position. Ten subjects were evaluated in the natural head position with angular ...
1. Artifically metamorphosed axolotls were exposed to both brief (impulse) and long-lasting horizontal angular accelerations on a turn-table. The animals responded with a head-turning reaction. 2. The general course of the reaction to impulse acceleration was independent of stimulus intensity. The velocity of the head movement first increased to a maximum exponentially and then decreased in a negative exponential manner. Stimulus intensity had a linear relationship to the mean maximum velocity and mean total angle covered by head-turning. The average velocity-time curves at various stimulus intensities differed only by a velocity factor. 3. During long-lasting constant accelerations the velocity of the head-turning increased to a maximum velocity in a sigmoid time-course and then decreased, first to a constant velocity, and then further. Mean values of the maximum velocity were correlated linearly with the stimulus intensity. 4. It was concluded that the head-turning reflexes in axolotls do not ...
The aim of this study was to investigate the effect of the head position on passive drag with a towing-line experiment in a swimming pool. The tests were performed on ten male swimmers with regional level swimming skills and at least 10 years of competitive swimming experience. They were towed underwater (at a depth of 60 cm) at three speeds (1.5, 1.7 and 1.9 m/s) and in two body positions (arms above the swimmers head and arms alongside the body). These two body positions were repeated while the swimmers head was positioned in three different ways: head-up, head-middle and head-down in relation to the bodys horizontal alignment. The results showed a reduction of 4-5.2% in the average passive drag at all speeds when the head was down or aligned to the swimmers arms alongside the body, in comparison to the head-up position. A major significant decrease of 10.4-10.9% (p , 0.05) was shown when the head was down or aligned at the swimmers arms above the swimmers head. The passive drag tended ...
TY - JOUR. T1 - Head growth in preterm infants. T2 - Correlation with magnetic resonance imaging and neurodevelopmental outcome. AU - Cheong, Jeanie L.Y.. AU - Hunt, Rod W.. AU - Anderson, Peter J.. AU - Howard, Kelly. AU - Thompson, Deanne K.. AU - Wang, Hong X.. AU - Bear, Merilyn J.. AU - Nursing, B. A.. AU - Inder, Terrie E.. AU - Doyle, Lex W.. PY - 2008/6. Y1 - 2008/6. N2 - Objective. Extremely preterm birth is associated with adverse neurodevelopmental sequelae. Head circumference has been used as a measure of brain growth. There are limited data relating head circumference to MRI. The purpose of this work was to establish the relationship between head circumference with brain MRI at term- equivalent age and to relate head circumference with neurodevelopmental outcome at 2 years. Patients and Methods. Two hundred and twenty-seven preterm infants (birth weight of ,1250g or ,30 weeks gestation) were recruited. Head circumference was measured at birth, term, and 2 years corrected age, and ...
ORTODONCIE PrÏirozena poloha hlavy Natural Head Position rocïnõâk24 MDDr. Michaela HadrovaÂ, MUDr. TomaÂsÏ Hanzelka, PhD., MUDr. Josef KucÏ era, MUDr. Hana Tycova Ortodonticke oddeï lenõâ, StomatologickaÂ
What exercises work the different heads of the triceps - Can you tell me some good exercises that work my long head triceps? Fully Extended. It takes the full extension of the arm in a tricep exercise to activate this long head portion. Here is a detailed step by step tutorial for you! Http://www. Livestrong. Com/article/498939-how-to-work-the-long-head-triceps/
Embodiments distinguish among user interface elements based on head orientation. Coordinates representing a set of at least three reference points in an image of a subject gazing on the user interface elements are received by a computing device. The set includes a first reference point and a second reference point located on opposite sides of a third reference point. A first distance between the first reference point and the third reference point is determined. A second distance between the second reference point and the third reference point is determined. The computing device compares the first distance to the second distance to calculate a head orientation value. The computing device selects at least one of the user interface elements based on the head orientation value. In some embodiments, the head orientation value enables the user to navigate a user interface menu or control a character in a game.
The assessment of an infant or child with an abnormal head circumference commonly includes imaging of the head with neurosonography, computed tomography (CT), or magnetic resonance imaging (MRI). The choice of imaging modality depends on the patients age, presentation, clinical condition, and suspected underlying abnormality.. Macrocephaly, a head circumference more than 2 SD above the mean, or more than the 98th percentile for patient age, is a nonspecific finding. It may reflect benign enlargement of the subarachnoid spaces or may herald a significant intracranial abnormality: an extra-axial collection, a hydrocephalus, or a developmental, metabolic, neoplastic, posttraumatic, or infectious etiology.. Microcephaly, a head circumference more than 2 SD below the mean, or less than the third percentile for patient age, may be primary or secondary, acquired or genetic. Common causes include chromosomal abnormalities, intrauterine infection, intrauterine ischemia, maternal exposure to drugs and ...
Pediatricians measure an infant's head growth, or head circumference, along with height and weight on a regular basis to determine if the rate is...
M20: Inverse Source Problems With Applications to Planetary Sciences and Medical Imaging The theme of the mini-symposium is the analysis of certain in...
Are you suffering from forwarding head position and upper blended syndrome? If you want to be taller, look slimmer, increase your breathing and sleep? The poor neck position leads to a Forward Head Position which is one of the most common causes of neck, head, and show. If you need help with mobility, range of motion, joint pain or just moving better? Here Forward Head Posture Fix is the complete solution for you. It is an especially simple and effective program that helps correct bad condition habits of the athletes so they can perform at their best every day. This program is for men and women who want to get rid of their texting neck, establish their position in order to move, sleep and breathe better. It shows you many ways forward head posture is damaging your health and holding you back ...
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In the first 2 years of life the infant skull experiences its greatest structural and geometric change [31]. Intracranial volume doubles during the first 6-9 months of life [5], and increases by another 20% in the subsequent 6 months [5]. A significant positive correlation between brain volume and cranial circumference has been demonstrated by postmortem studies and CT examinations of deceased newborns [32, 33], in line with MRI studies of older children [4]. For this reason, the head circumference measure (HC) is a recognized, well-established screening parameter for intracranial volume [34-36]. This measure should, however, not be accepted without reservation, since maximal head circumference primarily reflects expansion of the base of the skull [22, 29, 37, 38].. Estimating skull volume is based, on the one hand, on country-specific HC growth reference charts, which are periodically updated [10, 13]. On the other, a wide variety of specific craniometric ratios attempt to estimate the change ...
A couple of days ago, one of my pullets started shaking her head, kind of like a horse whinnying, if that makes sense. It happens every couple of...
Objective:To determine growth in head circumference from birth to 18 months of age in normal infants with low birth weight.Methods:Healthy, appropriate-for-gest
Women who smoke marijuana during pregnancy may impair their babys growth and development in the womb, a new study suggests. Poor fetal growth and reduced head circumference at birth are linked...
In my last post, I presented an image representing an oviraptorid with the head essentially completely and distinctly fleshed out. This is partly the culmination of examining likely tissues based on skull-only analogues. Some additional suggestions were made based on comparison to birds (closest living and structurally similar animals), and this gives us a decent…
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FHP or Forward Head Posture is a problem affecting approximately 90% of people in America. We look down so much at our cell phones, personal computers, tablets and dont even realize the damage we are causing our cervical spine. It can also be found while driving since many people sit without ever using their head support. You are driving with forward head position.. With all of this ugly forward head position in our lives we create an imbalance in the muscles supporting the head. I think we can all agree that the head is fairly important in our lives so fixing this issue is imperative for not only improving performance but overall quality of life.. So now we go from this ugly forward head position or texting neck all day to the other extreme while executing the deadlift. Let me explain.. The nasty habit that is found in gyms across the world is that head up looking at the horizon approach to deadlifting. As athletes, we are always told to look ahead and dont drop your head and that is ...
Heterick (2006) - HML 1.18-2.12 HL 0.44-0.73 HW 0.36-0.61 CeI 75-86 SL 0.30-0.54 SI 82-102 PW 0.25-0.47 (n=40). HEAD: Head oval; vertex planar or weakly concave; frons shining and smooth except for piliferous pits; pilosity of frons a mixture of incurved, semi-erect setae and slightly shorter decumbent setae. Eye moderate, eye width 1-1.5× greatest width of antennal scape to small, eye width less than 1× greatest width of antennal scape; (in full-face view) eyes set at about midpoint of head capsule to set below midpoint of head capsule; (viewed in profile) eyes set posteriad of midline of head capsule; eye elliptical, curvature of inner eye margin may be more pronounced than that of its outer margin; Antennal segments 12; antennal club three-segmented. Clypeal carinae always well-defined; anteromedian clypeal margin emarginate, clypeal carinae terminating in blunt angles; paraclypeal setae moderately long and fine, curved; posteromedian clypeal margin extending slightly beyond level of ...
Although I am fully convinced of the truth of the views given in this volume, I by no means expect to convince experienced naturalists whose minds are stocked with a multitude of facts all viewed, during a long course of years, from a point of view directly opposite to mine. It is so easy to hide our ignorance under such expressions as plan of creation, unity of design, etc., and to think that we give an explanation when we only restate a fact. Any one whose disposition leads him to attach more weight to unexplained difficulties than to the explanation of a certain number of facts will certainly reject the theory. ...
Introducing Dazey the red cap oranda, he always has this dazed look hence the name. He really looks like hes on something... lol I really like red cap orandas and their raspberry-like head growth. I hope Dazey lives for a long time and get to grow a huge head growth!
The average head circumference of an adult male and female is 22.44 and 20.87 inches, respectively. However, averages vary widely depending on the age and ethnicity of the...
Question - Hit head at accident, swelling, terrible increase in pain. Could this be serious?. Ask a Doctor about when and why X ray is advised, Ask a Neurologist
Oxygenics PowerSelect Chrome 7-Spray Shower Head at Lowes. This Oxygenics showerhead from the PowerSelect collection brings the perfect combination of power and luxury to your bath. Featuring seven spray patterns
Head circumference and chest size measurements are often taken on newborns and infants by a pediatrician to measure growth levels and development. These...
A hospital bed has a frame. A horizontal plate is pivotally mounted on a vertical axis to swing from an inoperative position underlying the frame to an operative position extending from the head end of the bed. A pillow can be placed on the extender so that the patient can be shifted toward the head end of the bed with the patients head comfortably supported on the pillow which is in turn supported on the extender. A basin is adapted to be used in conjunction with the extender and is a shell having a head receiving cavity with a pedestal projecting upwardly from within the cavity for resting the patients head thereatop while providing clearance completely around the head so that a care provider can shampoo the patients head.
cloudy head - MedHelps cloudy head Center for Information, Symptoms, Resources, Treatments and Tools for cloudy head. Find cloudy head information, treatments for cloudy head and cloudy head symptoms.
This is a set of resin-cast parts to build the figure as shown here and described in the title. Includes 2 different heads. Base not included.
The Minnesota Vikings have employed six different head coaches in their fifty years. With the fan base being unhappy with Coach Childress, it makes sense to think about what could have been...
FIG. 1 is a front view of the putter head;. FIG. 2 is a top plan view of the putter head;. FIG. 3 is a rear view of the putter head;. FIG. 4 is a bottom plan view of the putter head;. FIG. 5 is a toe-side view of the putter head; and,. FIG. 6 is a heel side view of the putter head.. ...
P. The presence of a strip of white scle- ra between the iris and the lower lid margin with the subject in natural head position augment in straight gaze.
At present I have an HSR3548 hub on teh right wheel of SB Cruiser, and even when it was on CrazyBIke2 its always had this wierd problem where its cover screws loosen and fall out if I dont regularly check them, even with loctite. So its got a mishmash of screws with at least 4 or 5 different head types, from standard hex-head bolt to allen to philips to some security-bit type with a slot, to regular flat head, and I forget what else. None of them are any better at staying in than any other, but some are a lot easier to tighten and loosen ...
First, we investigate the magnitude of the BIC across ITDs averaged across animals of the same species (as measured by the cross-correlation gain; Fig. 4A). For all species considered, the magnitude of the BIC remains high even for ITDs well beyond the physiological range of ITDs of that species (Fig. 4A). In addition, it is striking that the width of the curves in Figure 4A is not related to the head size (horizontal bars). A very similar result holds with the analysis of individually labeled DP1 (Fig. 4D) and DN1 peaks (Fig. 4E). In addition, we report the amplitudes of DN1 peaks as measured in previous studies for two additional species: cats (Fig. 4E, dark gray; Ungan et al., 1997), whose head size is twice that of guinea pigs; and humans (Fig. 4E, black; Riedel and Kollmeier, 2006), whose head size is twice that of cats (Fig. 4E). As a result, our dataset now includes animals with an eightfold difference in head sizes from mice to humans, and thus an eightfold difference in the ecological ...
This multi-part boxed set contains; 12x Termagants 1x Ripper Swarm 3 different head designs 2 different body designs Fleshborers Spinefists Devourers Adrenal Glands Toxin Sacs 12x Citadel 25mm Round Bases 1x Citadel 40mm Round Base
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Head To Head. Tommaso Gabrieli vs Luca Vanni all matches, with stats on their H2H rivalry. ATP & WTA Tommaso Gabrieli head to head tennis search.
Head To Head. Matej Svjetlicic vs Miha Mlakar all matches, with stats on their H2H rivalry. ATP & WTA Matej Svjetlicic head to head tennis search.
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Pax7 expressing muscle stem cells accompany all skeletal muscles in the body and in healthy individuals, efficiently repair muscle after injury. Currently, the in vitro manipulation and culture of these cells is still in its infancy, yet muscle stem cells may be the most promising route towards the therapy of muscle diseases such as muscular dystrophies.It is often overlooked that muscular dystrophies affect head and body skeletal muscle differently. Moreover, these muscles develop differently. Specifically, head muscle and its stem cells develop from the non-somitic head mesoderm which also has cardiac competence. To which extent head muscle stem cells retain properties of the early head mesoderm and might even be able to switch between a skeletal muscle and cardiac fate is not known. This is due to the fact that the timing and mechanisms underlying head muscle stem cell development are still obscure. Consequently, it is not clear at which time point one should compare the properties of head
TY - JOUR. T1 - Pattern of descent of foetal head in normal labour.. AU - Kushtagi, P.. PY - 1995/9/1. Y1 - 1995/9/1. N2 - The phenomenon of foetal head descent and the effect of station of foetal head at admission on the course of labour were studied on the basis of a prospective partographic study in 100 cases of normal labour. Only 16.9% of nulliparous women had engaged foetal head at admission in labour. Engagement of foetal head occurred during the period of maximum slope of cervical dilatation in nulliparous women and at the onset of deceleration phase in multiparous women. Parturients with unengaged foetal head entered hospital much earlier in labour than those with engaged foetal based. Course of labour was uninfluenced by the degree of engagement of foetal head. However, multiparous women showed faster rate of foetal head descent than nulliparous women (p , 0.001) and women with lesser haemoglobin concentration demonstrated slower rate of descent of foetal head (p , 0.01).. AB - The ...
The average head circumference at birth is 33-35 cm and increases about 2 cm per month. Head circumference should be measured at each visit and plotted on a growth chart. Although head size often follows body growth, small infants may have large heads and vice versa. It is not unusual for the head circumference to cross percentiles during the first year of life, but if the infant has a large head, other family members heads should be measured and plotted and a full developmental assessment and examination should be performed. Large heads are often a familial feature. The posterior fontanel usually closes at 6-8 weeks of life and the anterior fontanel between 12-18 months.. ...
Early Head Start (EHS) programs are comprehensive, two-generation programs that focus on enhancing childrens development while strengthening families. Designed for low-income pregnant women and families with infants and toddlers up to age 3, Early Head Start programs strive to achieve their goals by designing program options based on family and community needs. Programs may offer one or more options to families, including a home-based option, a center-based option, a combination option in which families receive a prescribed number of home visits and center-based experiences, and locally designed options, which in some communities include family child care.The Early Head Start Research and Evaluation (EHSRE) Study was conducted by Mathematica Policy Research (MPR) and included five major components: (1) an implementation study; (2) an impact evaluation, using an experimental design; (3) local research studies to learn about pathways to desired outcomes; (4) policy studies to respond to ...
Early Head Start (EHS) programs are comprehensive, two-generation programs that focus on enhancing childrens development while strengthening families. Designed for low-income pregnant women and families with infants and toddlers up to age 3, Early Head Start programs strive to achieve their goals by designing program options based on family and community needs. Programs may offer one or more options to families, including a home-based option, a center-based option, a combination option in which families receive a prescribed number of home visits and center-based experiences, and locally designed options, which in some communities include family child care.The Early Head Start Research and Evaluation (EHSRE) Study was conducted by Mathematica Policy Research (MPR) and included five major components: (1) an implementation study; (2) an impact evaluation, using an experimental design; (3) local research studies to learn about pathways to desired outcomes; (4) policy studies to respond to ...
Head and trunk muscles have discrete embryological origins and are governed by distinct regulatory programmes. Whereas the developmental route of trunk muscles from mesoderm is well studied, that of head muscles is ill defined. Here, we show that, unlike the myogenic trunk paraxial mesoderm, head mesoderm development is independent of the T/Tbx6 network in mouse. We reveal that, in contrast to Wnt and FGF-driven trunk mesoderm, dual inhibition of Wnt/β-catenin and Nodal specifies head mesoderm. Remarkably, the progenitors derived from embryonic stem cells by dual inhibition efficiently differentiate into cardiac and skeletal muscle cells. This twin potential is the defining feature of cardiopharyngeal mesoderm: the head subtype giving rise to heart and branchiomeric head muscles. Therefore, our findings provide compelling evidence that dual inhibition specifies head mesoderm and unravel the mechanism that diversifies head and trunk muscle programmes during early mesoderm fate commitment. ...
Gravitational forces may lead to local changes in subarachnoid cerebrospinal fluid (CSF) layer thickness, which has important implications for neurophysiological modulation and recording techniques. This study examines the effect of gravitational pull associated with different head positions on the distribution of subarachnoid CSF using structural magnetic resonance imaging. Images of seven subjects in three different positions (supine, left lateral and prone) were statistically compared. Results suggest that subarachnoid CSF volume decreases on the side of the head closest to the ground, due to downward brain movement with gravity. These findings warrant future research into currently unexplored gravitation-induced changes in regional subarachnoid CSF thickness.
We show here that a structurally unresolved 17-residue segment of the MeV H protein head must have a defined length to favor proper H tetramerization and promote efficient membrane fusion triggering. We propose that during H-tetramer maturation this segment would act as a leash long enough to allow the H heads to adopt a triggering-permissive conformation but short enough to limit their roaming and improper contacts with heads of neighboring tetramers.. Genus-specific variations of the conserved paramyxovirus membrane fusion mechanism are currently being characterized (9, 10, 23, 24). The paramyxovirus head repositioning model was suggested based on structural analyses of entire HN protein ectodomains, which crystallized in distinct conformations about the stalk: 4 heads down, 4 heads up, and 2 heads up/2 heads down (12, 13, 19). While in all these conformations the globular heads behave like rigid bodies maintaining similar structures, they might take advantage of flexible linkers to relocate ...
It is important to measure the patients head circumference at birth. A very small head circumference implies a process that began early in embryonic or foetal development. Serial head circumference measurements are more meaningful than a single determination particularly when the abnormality is minimal. If the cause of the microcephaly is unknown the mother serum phenyl alanine level should be determined. CT scanning or MRI may be useful in identifying structural abnormalities ...
article{03d20d0e-3ce2-45a2-b810-0a9003a1a7f4, abstract = {Purpose: To study the effect of AED exposure on head circumference in the newborn. Methods: Data on all Swedish singletons births between 1995 and 2005, over 900,000 births, were obtained from the Swedish Medical Birth Registry. The effects of AEDs on birth-weight-adjusted mean head circumference (bw-adj-HC) were estimated by comparison with data from all births in an analysis which was adjusted for year of birth, maternal age, parity, maternal smoking, and maternal body mass index. Results: A significant reduction of mean bw-adj-HC was seen after both carbamazepine (CBZ) (standard deviation scores (SDS) = 0.15, p < 0.001) and valproic acid (VPA) (SDS = 0.10, p = 0.04) in monotherapy. No effect on mean bw-adj-HC was seen for phenytoin, clonazepam, lamotrigine and gabapentin. There was a significant increase in the occurrence of microcephaly (bw-adj-HC smaller than 2 SD below the mean) after any AED polytherapy (OR = 2.85, 95% CI: ...
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What is Forward Head Posture? Have you ever noticed a hump at the base of your neck? Or your head is always protruding forwards when you work on your laptop or desktop for prolonged periods? Thats probably because of forward head posture, which may be acquired due to faulty or prolonged bad postures. Forward head posture occurs when the head shifts forward from your bodys center of gravity, to compensate the upper shoulders and thoracic spine. There is hyperextension of the upper neck (cervica
Fig. 2. Characteristics of the EFA-nGFP Tribolium line in LSFM. (A) Head movement during dorsal closure. The head turns ∼45° from an anterior to an anterior-ventral position during dorsal closure. Lines indicate single planes shown in B and C. (B) Ventral optical sectioning during dorsal closure shows head appendices. The first single plane with moderate signal was defined as 0 µm. Because of the head turning, ventrally recorded single planes show details of head development along different head orientations. Arrows mark the antenna at 0 µm, the maxillary palp tip at 13 µm, the labial palps at 26 µm, the labium at 39 µm and the mandibles with the typical Y-shape in between at 52 µm. (C) Ventral optical sectioning during dorsal closure shows structures deep within the embryo. The first single plane with moderate signal was defined as 0 µm. The boxed regions are magnified (4×) to the right. At 104 µm, the tracheae are visible. At 117 µm, the esophagus is cut sagittal, revealing its ...
In the mouse, the formation of the embryonic head is critically dependent on the function of homeobox transcription factors OTX2 and LHX1, the strict regulation of WNT signaling activity and the inductive signals that are emanating from the axial mesendoderm (AME) at gastrulation stage. Inactivation of Otx2 or Lhx1 results in head truncation, similar to the mutant embryos that are associated with the loss of Dkk1 gene which codes for an antagonist of the WNT signaling cascade. All three genes, Otx2, Lhx1 and Dkk1, are co-expressed in the AME, a tissue that is derived from the epiblast. The focus of this project is to investigate the molecular mechanism underpinning the formation, and the function of the AME for head formation. AME-specific ablation of Otx2 gene (Otx2ameCKO), mediated by the recombinase activity controlled by Foxa2 promoter (Foxa2-merCremer), resulted in a head truncation phenotype. In the AME of the Otx2ameCKO mutant embryos, the expression of Dkk1 was markedly reduced, which is ...
A sizeable proportion of adult pedestrians involved in vehicle-versus-pedestrian accidents suffer head injuries, some of which can lead to lifelong disability or even death. To understand head injury mechanisms, in-depth accident analyses and accident reconstructions were conducted. A total of 120 adult pedestrian accident cases from the GIDAS (German In-Depth Accident Study) database were analysed, from which 10 were selected for reconstruction. Accident reconstructions initially were performed using multi-body system (MBS) pedestrian and car models, so as to calculate head impact conditions, like head impact velocity, head position and head orientation. These impact conditions then were used to set the initial conditions in a simulation of a head striking a windshield, using finite element (FE) head and windshield models. The intracranial pressure and stress distributions of the FE head model were calculated and correlated with injury outcomes. Accident analysis revealed that the windshield and its
This study of 12 439 men and women born in Helsinki, Finland, during 1934 to 1944 confirms previous observations that low birth weight is associated with increased risk of stroke.1-6 This association is independent of the length of gestation and therefore reflects slow fetal growth. Low body mass index at birth was also associated with later stroke. The disorder was not associated with small head circumference at birth, which is consistent with previous reports of relative sparing of brain growth during the slow fetal growth that precedes stroke.5 We were not able to confirm the association between thrombotic stroke and preterm birth reported from Sweden.7 One difficulty in interpreting this is that large numbers of babies born prematurely 60 or more years ago would have failed to survive infancy.. We have been able to examine, for the first time to our knowledge, the associations between growth in the first 2 years after birth and later stroke. We have previously shown that slow growth during ...
In forward head posture, there is anterior tilting of the cervical spine. The cause of the Forward Head Posture is excessive sitting and misalignment in the pelvis or it can also occur from injuries, such as neck strain or sprain. Know the causes, symptom and treatment for forward head posture and exercises to correct it.
Background: Several lines of investigation indicate there to be potential beneficial effects of interventions that augment cerebral blood flow (CBF) to irrigate the ischemic penumbra in acute ischemic stroke. The simplest manner to do this is to place the patient in a lying flat rather than upright head position. However, any potential benefits on the brain may be offset by an increased hazard of aspiration pneumonia or exacerbation of cardiac failure in vulnerable patients. Given uncertainty over the balance of potential modest benefits and risks, and variability regarding the ideal head position policy for patients with acute ischemic stroke around the world, reliable randomized evidence is required to standardize clinical practice.. Aims: The main objectives of this pilot phase clinical trial are to determine the feasibility, safety and potential efficacy of a large-scale cluster randomized clinical trial to assess whether a simple nursing care policy - lying flat head position - provides ...
Methods Birthweight and head circumference (OFC) were documented for 366 singleton infants of drug-misusing women prescribed substitute methadone and delivered at a single hospital over a 3-year period. Administrative obstetric records of all women delivering in Scotland over 3 years were used to select controls, matching on maternal smoking, social deprivation (Scottish Index of Multiple Deprivation) and gestation. Birthweight and OFC of methadone-exposed infants were compared to those of 1956 matched infants, using regression analysis to control for sex, maternal age and parity.. ...
Publikations-Datenbank der Fraunhofer Wissenschaftler und Institute: Aufsätze, Studien, Forschungsberichte, Konferenzbeiträge, Tagungsbände, Patente und Gebrauchsmuster
Weve all seen people working on laptops in airports, airplanes, coffee shops, on the train, walking down the street…you name it! So how does this affect ones neck, and does it contribute to headaches? A 2016 study compared females with posture-induced headaches vs. healthy, age-matched female control subjects to see if there was any significant difference in their head-tilt and forward head position during laptop use. The research team measured angles for maximum head protraction (chin-poking forwards), head-tilt, and forward head position at baseline (neutral resting) and while using a laptop. Essentially, they measured how slumped the participants posture was at rest vs. while working on a laptop. The results showed that the headache group demonstrated an increased head protraction of 22.3% compared to the control group at rest. When comparing the ratio of forward head position during habitual sitting to the maximum head protraction, the researchers found a significant difference, which ...
Many studies concerned with IUGR are bedeviled by the problem of definition: fetal malnutrition and SGA are not synonymous. By using an arbitrary cutoff point within a population, some small normal infants will be included. In a study by Deter et al,13 only 40% of infants with IUGR were SGA (,10th centile), where IUGR was defined using a specific neonatal growth assessment score. As with all normally distributed variables, individuals within the extremes of the distribution may be normal or may have entered this area by virtue of an underlying pathologic process.. Our anthropometric data show that even when using stringent weight criteria (≤second centile), small normal infants are still included in the group. However, in the SGA group, a measure of thinness, the mid-arm circumference/head circumference ratio, was significantly correlated to the number of episodes of low blood glucose values, confirming earlier work14 and indicating that it remains important to identify those who are truly ...
The present study used an inhibition of return (IOR) spatial cueing paradigm to examine how gaze direction and head orientation modulate attention capture for human faces. Target response time (RT) was measured after the presentation of a peripheral cue, which was either a face (with frontfacing or averted gaze, in either frontal head view or averted head view) or a house (control). Participants fixated on a centred cross at all times and responded via button press to a peripheral target after a variable stimulus onset asynchrony (SOA) from the stimulus cue. At the shortest SOA (150 ms), RTs were shorter for faces than houses, independent of an IOR response, suggesting a cue-based RT advantage elicited by faces. At the longest SOA (2400 ms), a larger IOR magnitude was found for faces compared to houses. Both the cue-based RT advantage and later IOR responses were modulated by gaze-head congruency; these effects were strongest for frontal gaze faces in frontal head view, and for averted gaze ...
Similar flight control principles operate across insect and vertebrate fliers. These principles indicate that robust solutions have evolved to meet complex behavioral challenges. Following from studies of visual and cervical feedback control of flight in insects, we investigate the role of head stabilization in providing feedback cues for controlling turning flight in pigeons. Based on previous observations that the eyes of pigeons remain at relatively fixed orientations within the head during flight, we test potential sensory control inputs derived from head and body movements during 90° aerial turns. We observe that periods of angular head stabilization alternate with rapid head repositioning movements (head saccades), and confirm that control of head motion is decoupled from aerodynamic and inertial forces acting on the birds continuously rotating body during turning flapping flight. Visual cues inferred from head saccades correlate with changes in flight trajectory; whereas the magnitude of neck
Researchers in one study began measuring blood folate levels in 100 mothers at the 14th week of pregnancy, and followed up on their childrens behavior for nine years. Kids whose moms had lower blood folate levels were more likely to be hyperactive and to have behavioral problems with peers. Moms who consumed an average of 466 mcg of folic acid per day had kids with larger head circumferences at birth than kids whose moms got an average of 413 mcg of folic acid per day, suggesting that folic acid influences brain development, doctors said.. Reference: Journal of Child Psychology and Psychiatry; 2010 May, Vol. 51, No. 5, 594-602. ...
Average human head weight is around 4.5~5.4kg. Forward transition of head will lead to increase the head weight upto 12~18kg. This means people with forward head posture will use double or triple amount of muscles to support their head throughout the day. No wonder neck and shoulders become stiff and heavy. Improving posture is not that simple. It is misconception that poor posture is due to lack of attention in posture. Posture is a process that operated by reflex. Which means posture will be made throughout the day without realising it. Good example is breathing. People breath approximately 17,000 to 30,000 times per day. Never aware of it. Breathing can be controlled such as slow, fast or stopped. People attempt to maintain good posture intentionally for the whole day will be equal to I am going to breath 25,000 times today. In the next months article, I will write about how to avoid poor posture from happening.. ​. by Dr Jarod Kim. Chiropractor. ​. The Millwater Mag - 2018 August ...
In 2015, CCR Analytics, formerly Child Care Analytics, published the results of their Family Outcomes Survey completed by nearly 11,600 California Head Start and Early Head Start parents. 90% of parents surveyed said that Head Start helped them to get or keep a job. 92% of parents surveyed said that Head Start helped them to enroll in an educational or training program. 99% of families surveyed said that Head Start helped them to improve their parenting skills, such as responding to childrens misbehavior and helping their children to learn. These results indicate that Head Start has a positive impact on the whole family, beyond the individual children who attend the program.[19] In 2014, CCR Analytics published the results of their study of 49,467 children assessed in the 2012-2013 school year from 81 Head Start programs throughout the state of California (more than 50% of the entire California Head Start population). Participation in the study was open to all California Head Start programs who ...
Q: Why is this program different from other posture & FHP programs?. A: Unlike other posture programs which focus on stretching exercises, Ricks program is unique in focusing closely on the sequential flow. In other words, it isnt necessarily about what exercises and stretches are performed, more about completing them in the right sequence in order to open up and unravel the neck so you can begin to fix Forward Head Posture and restore balance to the body.. Q: Why cant I just get all this information from the internet?. A: There are a lot of videos and online resources dedicated to tackling the problem of Forward Head Posture, yet very few offer a complete solution to fixing the problem at its root. While many suggest stretches which will give temporary relief from any neck, shoulder or back pain, Ricks program is designed to get to the very root of the problem and give you a long term solution.. You can only do this through using Ricks tailored program which is NOT available anywhere ...
The aim of this course is to offer an in-depth knowledge of current MR imaging techniques for the diagnosis of head and neck lesions. The course will provide the participant with an update on fundamental and advanced sequence protocols to image the different head and neck regions. A comprehensive coverage of the MR signal of the normal tissues will give the preliminary basis for head and neck anatomy. We will focus on imaging strategies, recent developments and specific MR findings to characterise head and neck congenital, inflammatory, benign and malignant diseases. Special emphasis will be placed on differential diagnosis and on grading tumour extent. The course will provide a combination of lectures and case based interactive teaching in small groups ...
TY - JOUR. T1 - Shared Genetic Factors Influence Head Motion During MRI and Body Mass Index. AU - Hodgson, Karen. AU - Poldrack, Russell A.. AU - Curran, Joanne E.. AU - Knowles, Emma E.. AU - Mathias, Samuel. AU - Göring, Harald H.H.. AU - Yao, Nailin. AU - Olvera, Rene L.. AU - Fox, Peter T.. AU - Almasy, Laura. AU - Duggirala, Ravi. AU - Barch, Deanna M.. AU - Blangero, John. AU - Glahn, David C.. PY - 2017/12/1. Y1 - 2017/12/1. N2 - Head movements are typically viewed as a nuisance to functional magnetic resonance imaging (fMRI) analysis, and are particularly problematic for resting state fMRI. However, there is growing evidence that head motion is a behavioral trait with neural and genetic underpinnings. Using data from a large randomly ascertained extended pedigree sample of Mexican Americans (n = 689), we modeled the genetic structure of head motion during resting state fMRI and its relation to 48 other demographic and behavioral phenotypes. A replication analysis was performed using ...
Find and save ideas about Muscles of facial expression on Pinterest. | See more ideas about Head muscles, Facial anatomy and Face anatomy.
Acquired: not present at birth, but developing later. Congenital: present at birth. Macrocephaly: excessive size of the head, most often more than two standard deviations above the mean. Microcephaly: excessively small head size, most often more than two standard deviations below the mean Standard deviation: a measure of the amount of variation among the values of a variable in a population ...
Objectives: The purpose of this craniometric study was to analyze the accuracy of panoramic radiograph in diagnosing mandibular ramal and condlyar vertical asymmetries. Methods: In this study the accuracy of vertical condylar measurements is assessed on the OP1OO using human skulls. Three different head positions are used: normal (according to manufacturers instructions), tilted 10°, and rotated 10°. Condylar ratios are measured from the skulls and compared to the commensurate measurements on the radiographs according to the method of Kjellberg. The asymmetry between left and right condyles is determined by the following formula: [(Ratio R-Ratio L)/(Ratio R + Ratio L)] X 100. The hypothesis tested was that the use of condylar ratios and asymmetry index has no clarifying effect on the magnification and distortion effects of poor head position when evaluating the vertical height of the condyle as shown on the OP100. Multivariate tests of variance (MANOVA) were used: Pillais Trace, Wilks Lambda Test,
List of 79 causes of Small baby and Small head, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.
For a time fractional diffusion equation with source term, we discuss an inverse problem of determining a spatially varying function of the source by final overdetermining data. We prove that this inverse problem is well-posed in the Hadamard sense except for a discrete set of values of diffusion constants.
The headstack of a disk drive is formed with separate sections, each of which supports a plurality of head suspensions. In one embodiment, the sections are blocks on which pairs of head suspensions having UP and DOWN facing sliders are mounted. The blocks are individually positioned and aligned relative to a disk stack. In a second embodiment, head suspensions are supported by a pair of modules. A first module supports suspensions with UP head sliders and a second module supports suspensions with DOWN head sliders. The modules interlock so that an alternating arrangement of UP and DOWN heads result. By use of a comb-like head loading tool, the suspensions that carry the head sliders are spaced and loaded to respective disk surfaces.
The stage of a cancer is how much and how far the cancer has spread in your body. Different head and neck cancers are staged in different ways. Learn about the stages of some of the more common types of head and neck cancer.
Question - Hit on the head at the same spot as earlier, continuous headache with watery eyes. Normal?. Ask a Doctor about when and why MRI is advised, Ask a Neurologist
Results A total of 117 patients were identified to have received surgical treatment of craniosynostosis at CHLA between 1995 and 2005. 66 charts contained appropriate data for collection, including a pre-operative head circumference measurement and post-operative head circumference measurements immediately post-operatively, at approximately 3 months, 6 months, and/or 1 year. Of these, 39 patients had sagittal craniosynostosis, 12 coronal, 4 bicoronal, 3 metopic, 3 lambdoid, and 5 multisynostotic. Preliminary results show a progression of head circumference growth along the growth curve at an age appropriate head circumference percentile following surgical treatment of craniosynostosis. Further investigation is pending. ...
An itchy scalp could be a sign of many problems, including dandruff. Find out what could be behind the problem with expert advice from Head & Shoulders.
hi alli never had a headache and pressure before so when about 14 days back woke up with stuffy nose with sore throat coughing, pressure front sides of my head felt like my head was in a vice The way to sum up the entire feeling is either drunk or high feeling.or likejust before you to crosseyed feeling or blurry vison and took me about half to one second to focus as well i thoughtit my be cold or head cold or sinunesthe pressure in my head and side of head was nearly 24/7 ,now 14 days later coughing and sore throat gone but i still got the feeling of cannot focus straight away and pressure to my head comes and goes semi constant and now i got i feel like prsseue behing my ears and i have to pop my ears like when in a plane all the timeyestreday i got spots and lines infront in my eyes and bad head pressure twice, i been taking sinus pills releve the headaches a bit but its still there and my eyes still and front of forhead feels i cannot focus stright away is this sinuses are something else ...
Hi. I just wanna share my experience.2003, I started to feel little pains in my head and sometimes, I cant hear well. I thought it was just nothing, until 2005 up to 2008, the pain became so intense. At first I thought that it was just a migraine, but I asked myself why I have terrible pressure inside my ear.I went to different doctors and spent a lot of money for ear check ups and head x-rays, but they all said that my ear is clean and healthy, but still, the terrible pressure inside my left ear hurts my head that also affects my eyes and sometimes nose. Id been so *****d and worried why doctors kept telling me otherwise, while I was really feeling terrible pain inside my ear and my head. Sometimes I just pulled my hair and felt like bumping it on the wall cos of too much pain in my head and I felt like I want to scratch something inside my head that causes pain. Since 2007, aside from terrible head aches, I also felt dizziness that sometimes I wanted to vomit. July 2008, I kept on searching ...
head aches - MedHelps head aches Center for Information, Symptoms, Resources, Treatments and Tools for head aches. Find head aches information, treatments for head aches and head aches symptoms.
The head is a large and heavy part of a person. In a child, the head can account for ¼ of their weight. In the adult, the head weighs 10-14 pounds, and this load has to be balanced by the strength of the neck muscles. In normal upright posture, there is a forward curve to the neck, and this curve provides the perfect balance between strength and mobility. Unfortunately, this curve can be disrupted by whiplash and other traumas that damage the delicate ligaments and disks. This results in a straight or military neck.. When a person bends their head forward to read or type, the neck begins to straighten and the weight of the head must be countered by the pull of the muscles at the back of the neck. If the person does this all day-because they work at a computer, for example-then the muscles never get a break. Knots, tightness, or spasm of the muscles will increase and cause a neck ache. The person may feel a tightness or pain around the head because the muscles pull at the base of the skull. ...
The head is a large and heavy part of a person. In a child, the head can account for ¼ of their weight. In the adult, the head weighs 10-14 pounds, and this load has to be balanced by the strength of the neck muscles. In normal upright posture, there is a forward curve to the neck, and this curve provides the perfect balance between strength and mobility. Unfortunately, this curve can be disrupted by whiplash and other traumas that damage the delicate ligaments and disks. This results in a straight or military neck.. When a person bends their head forward to read or type, the neck begins to straighten and the weight of the head must be countered by the pull of the muscles at the back of the neck. If the person does this all day-because they work at a computer, for example-then the muscles never get a break. Knots, tightness, or spasm of the muscles will increase and cause a neck ache. The person may feel a tightness or pain around the head because the muscles pull at the base of the skull. ...
Cerberus Mask - Look like everyones favorite demon dog with this Cerberus mask! Featuring the dogs signature three different heads, all growling and ready to bite, this mask is sure to be hit for anyone who loves evil dogs!
Forward Head Posture is not something that develops overnight. It takes years and years, and it can be the cause of neck pain. What are some ways to work on this posture without using medication?
The present invention provides an efficient approach of attaching and fixing a measurement head for a spectroscopic system to a variety of different parts of the skin of a patient. The measurement head preferably features a compact design providing a flexible handling and offering a huge variety of application areas taking into account the plurality of properties of various portions of the skin. Furthermore, the measurement head features a robust and uncomplicated optical design not requiring a lateral shifting of the optical axis of the objective. Such transverse relative movements between the objective and a capillary vessel in the skin are preferably performed by mechanically shifting the skin with respect to the objective of the measurement head. Moreover, the measurement head is adapted to host one or more pressure sensors measuring the contact pressure between the measurement head and the skin. This pressure information can further be exploited in order to calibrate the spectroscopic
The Sta-Blok Head Immobilizer provides head immobilization quickly and easily. Laerdals most popular disposable head immobilizer, the Sta-Blok, is constructed of soft closed cell foam and hook and loop tape adhered head blocks. This also includes two straps for extra security during immobilization.. The adhesive on the bottom of the occipital pad allows providers to adhere the Sta-Blok before the patient is placed in the head immobilizer, or after the patient has been placed in the head immobilizer. The Sta-Blok can be used with nearly all spineboards and is completely disposable, which eliminates any need for extra cleaning.. ...
Heading level 1. Heading level 2. Heading level 3. Heading level 4. Heading level 5. Heading level 6. The effects are: Heading ... Level 1 Heading Level 2 Heading Level 3 Heading Level 4 Heading Level 5 Heading Level 6 Note that CSS can drastically change ... use CSS instead.) attribute on div, form, paragraph (p) and heading (h1...h6) elements align (Deprecated. use CSS instead.), ... HTML Design Constraints, W3C Archives WWW:BTB - HTML, Pris Sears Freeman, E (2005). Head First HTML. O'Reilly. Sauer, C.: ...
Those analyse the content using Regular Expressions and replace e.g. = HEAD = with its HTML equivalent HEAD. . In most of the ...
Olga is headed his Bagaley. 1929 - After entering the USSR unified national system of mandatory copy. Library-Union began to ... Head. Department Ukrainika Valentina Yaroshik awarded the honorary title of Honored Worker of Ukraine for a significant ... 1932 - On the basis disbanded advisory department, headed by BA Borovichi (for "socially harmful", he was arrested and died in ... 1965 - Organized the Republican seminar reading rooms, meeting heads of regional and central city libraries. 1969 - On the ...
"Head signs Amanda Sobhy, the great hope of American Squash". HEAD. January 21, 2019. Retrieved September 24, 2019. Amanda Sobhy ... On January 21, 2019, after many years playing for Harrow Sports, Sobhy signed a long-term contract with HEAD, the global ...
Murray uses Head rackets, and regularly appears in advertisements for the brand. He endorses the Head Radical Pro model, ... "Murray v Wawrinka Head to Head". ATPTour.com. ATP. Retrieved 21 September 2016. "Murray wins late-night thriller". BBC Sport. ... "HEAD - the most successful racquet on the tennis tour in 2012". HEAD. Retrieved 16 June 2013. "Andy Murray's Racquet". Tennis. ... despite an intervening Olympic gold medal and a head-to-head win - when he met the same player (now ranked No. 75) in the ...
"Head". illinois.edu. Retrieved May 13, 2017. "Mechanical Science and Engineering, University of Illinois Urbana-Champaign". ... Anthony Jacobi became the 21st Head of Mechanical Science and Engineering at the University of Illinois in 2015. "Anthony ...
HEAD. Black herl. It is only just possible to find a river or a catch, be it in pools, streams, rapids, or flats, shaded or ...
"Head". HanCinema. 26 May 2011. Yim Soon-rye, Oh Jeom-gyoon, Park Heung-sik, Song Il-gon "Sorry, Thanks". HanCinema. 26 May 2011 ...
". "Elise Mertens". Head. Retrieved 14 March 2021. CS1 maint: discouraged parameter (link) "Elise Mertens: Bio". Women's Tennis ...
... airy female dancing figures and a head of a woman in the national attire. On the right is the head of the king Artavazd II, who ... The head of ashug is as if stepping out of it. One the opposite side there is a relief depicting women of three Transcaucasian ... The head of the poet is made as a single piece, his face is elaborated with a chisel. The sculptural composition of the ... Once, when he was still a boy, he found a piece of tuff and, using whatever tools he could find, hewed out a woman's head that ...
ISBN 978-0-300-22177-0. Head. Oakland, CA: TBW Books, 2017. Subscription Series #5, Book #4. ISBN 978-1-942953-28-9. Edition of ...
Leoncini; Sources, Natural; Head; Cancer, Neck; et al. (Jul 2015). "A Systematic Review and Meta-analysis of Epidemiological ... A 2015 review found that foods high in carotenoids appear to be protective against head and neck cancers. Another 2015 review ...
"Head". UCLA Grunwald Center for the Graphic Arts. Retrieved 22 October 2017. CS1 maint: discouraged parameter (link) "Mid ...
It was at this point that I began to wonder if I was getting in over my head with this research." Hallucinations of strange ... doi:10.1139/cjr31-097.[permanent dead link] Bigwood J, Ott J (November 1977). "DMT: the fifteen minute trip". Head. 2 (4): 56- ... "The serotonin 2C receptor potently modulates the head-twitch response in mice induced by a phenethylamine hallucinogen". ...
Head'). On 23 March 2018, Krovostok released the concert album Krovostok Live (Russian: «Кровосток Лайв»), and on 30 March 2018 ... Lose your head»(Теряю голову») Live (2006) «Cormorants»(«Бакланы») Live (2008) «Dumbbell»(«Гантеля») karaoke (2009) «Riots»(« ... Head»(«Голова») 2020 «Children»(«Дети») The band doesn't have any official music videos, all the videos are made by enthusiasts ...
HEAD. 17: 107.17. Bibcode:2019HEAD...1710717D. Official website. ...
Genève, © 2018 HEAD-; design, Haute école d'art et de. "Marie-Antoinette Chiarenza , HEAD". www.hesge.ch (in French). Retrieved ... artist and since 2000 head of the art studies programme at the F+F School of Art and Design. In the summer of 2013, Chiarenza ...
... and Lendl led their head-to-head series 6-2. Agassi and Stefan Edberg played 9 times, and Agassi led their head-to-head series ... Agassi and Roger Federer played 11 times, and Federer led their head-to-head series 8-3. With the retirement of Sampras, the ... "Sampras-Agassi Head-to-Head Matches". Association of Tennis Professionals (ATP). Retrieved April 13, 2021. Muir, Allan. " ... He later switched to Head Ti Radical racket and Head's LiquidMetal Radical racket, having signed a multimillion-dollar ...
David White, Head of Fraud Investigation Service, DWP Operations. For services to the Department for Work and Pensions. Elaine ... Head of Enforcement and Specialist Offices, Debt Management and Banking, Birmingham, H.M Revenue and Customs. For service to ... Head of Operations, Washington, Tyne and Wear, HM Revenue and Customs. For services to Child Benefit Reform and voluntary ... Business Unit head, Local Compliance, London, HM Revenue and Customs. For services to Tax Compliance and voluntary service to ...
head". The Daily Record. 2006. Archived from the original on 2011-06-16. CS1 maint: discouraged parameter (link) "Archived copy ...
"Head-zapoppin'!". The Criterion Collection. Archived from the original on July 4, 2012. Retrieved May 20, 2012. "Head". The ... film Head as meeting their criteria when they fully restored and released it on DVD and Blu-ray in 2010. They stated that Head ... so that the person looking at the cover would see his own head, a play on the album title Head. Peter Tork said, "That was ... So, I headed off to Nashville to see if I couldn't get some of the Nashville country thing into the rock 'n' roll or vice versa ...
Colossal Head N° 1 of San Lorenzo, 1200 to 900 BCE, 2.9 metres (9 ft 6 in) high and 2.1 metres (6 ft 11 in) wide. A historical ... Old Bering Sea head; 2nd-4th century; ivory (walrus); height: 6.35 cm (21⁄2 in.); Metropolitan Museum of Art (New York City) ... Head; 9th-11th century; vesicular basalt; height: 19.7 cm, width: 15.5 cm; from Hawaii; Metropolitan Museum of Art (New York ... Yotoco animal-headed figure pendant; 1st-7th century; gold; height: 6.35 cm; Metropolitan Museum of Art (New York City) ...
... re-formed on December 21, 2000, at CBGB as a gig billed "Head>>Fake w/ special guests". Head>>Fake was the ... In October 2006, "Love Rears Its Ugly Head" was ranked and voted 303 out of the 2006 songs featured in the Triple M Essential ... current drum and bass project headed by Calhoun and Wimbish. Glover was on the bill to sing a few songs and Reid came on after ...
... the head is aligned horizontally adjacent to the body. In an opisthognathous head, it was positioned diagonally, such as ... The mouthparts, along with the rest of the head, can be articulated in at least three different positions: prognathous, ... In species with prognathous articulation, the head is positioned vertically aligned with the body, such as species of ... Kirejtshuk, A.G. (November 2002). "Head". Beetles (Coleoptera) and coleopterologist. zin.ru. Retrieved 2011-03-21. Beckingham, ...
... head; a water plant; first-born child; a medical herb. The Festival of Throwing Stones, from Iran and the Caucasus 16 (2012) pp ...
... head). use of the dative case for personal names: му рече Стојану (mu reče Stojanu; he told to Stojan); use of the diminutive: ...
Head. The head of the baby is delivered. Delivery of the head is controlled to prevent rapid expulsion. One hand is placed on ... The baby's head will feel hard versus their buttocks will feel soft. If the baby's head is presenting out of the vagina ( ... The head is delivered with careful attention to the baby's arms. The arms will be delivered downwards through the vulva and may ... If it is present, an index finger is used to attempt to pull it over the baby's head. If this cannot be done, the cord is ...
"Head". Turner Classic Movies. Retrieved May 9, 2016. "The Shaggy D.A." Turner Classic Movies. Retrieved May 9, 2016. " ...
"HEAD ,". www.hesge.ch. Retrieved 2020-10-03. "Art". FHNW. Retrieved 2020-10-03. Loher, Katja; Loher, Katja; Loher, Katja; ...
"Head of a Woman, from 'Les miroirs profonds: Henri Matisse', Paris, Pierre à Feu". exchange.umma.umich.edu. Retrieved 2020-12- ... "Head of a Man, Flowered Background (Tête d'homme, fond fleuri) (Joan Massia) (la". exchange.umma.umich.edu. Retrieved 2020-12- ... "Head". exchange.umma.umich.edu. Retrieved 2020-12-10. "Untitled [from Poésies de mots inconnus]". exchange.umma.umich.edu. ... "Untitled [female head]". exchange.umma.umich.edu. Retrieved 2020-12-10. "Teeny". exchange.umma.umich.edu. Retrieved 2020-12-10 ...
Doctors order head ultrasounds when theres a concern about neurological problems in an infant. ... The head ultrasound test is painless, though your child may feel a slight pressure on the head as the transducer is moved. The ... The head ultrasound can be done with the baby on his or her stomach or back, or even in a parents arms, if necessary. The room ... The head ultrasound will be done in the radiology department of a hospital or in a radiology center. Parents usually can ...
Your physician will ask about problems of the ear, nose, and throat and examine the head and neck. He or she may use a small ... Copyright © 2018 American Academy of Otolaryngology-Head and Neck Surgery. Reproduction or republication strictly prohibited ...
... heads, Saxons heads, Egyptians heads or Turks heads), or specifically identified (such as the head of Moses in the crest of ... heads, nuns heads (often veiled), and occasionally queens heads. The arms of Devaney of Norfolk include "three nuns heads ... Cylinder head, pothead, and weatherhead are three such examples. Nerves of the human head, from Grays Anatomy, 1858 Head of St ... "To be big-headed" - to be overly full of oneself "To come to a head" - to reach a critical stage and require immediate action " ...
Medicine Head signed for Polydor Records, and Hope-Evans returned for the album One & One Is One, produced by Tony Ashton and ... In May 2009 Cherry Red also released, One And One Is One - The Very Best Of Medicine Head. Fiddler released solo albums after ... Medicine Head was a British blues rock band - initially a duo - active in the 1970s.[1] Their biggest single success was in ... In March 2007 Medicine Heads debut album New Bottles, Old Medicine was re-released on CD by Cherry Red Records. ...
Head injuries include both injuries to the brain and those to other parts of the head, such as the scalp and skull. Head ... Among these are the Canadian Head CT rule, the PECARN Head Injury/Trauma Algorithm, and the New Orleans/Charity Head Injury/ ... A head injury is any injury that results in trauma to the skull or brain. The terms traumatic brain injury and head injury are ... See also: Head injury criterion. There are a few methods used to diagnose a head injury. A healthcare professional will ask the ...
... together with the Sabouroff head. It is comparable with the Sabouroff head, from about the same period. These nearly life-like ... The Herakleia head is the portrait of a probable Achaemenid Satrap of Asia Minor of the late 6th century, found in Heraclea, in ... The head is now located in the Museum of Anatolian Civilizations in Ankara. The man depicted in the sculpture was probably a ... The Herakleia head is also an important marker for the depiction of Satraps in the period. In particular, the banned Athenian ...
... fall into two categories: external and internal. Learn more about both kinds, how to prevent them, and what to do ... Preventing Head Injuries. Its impossible to prevent kids from ever being injured, but there are ways to help prevent head ... An internal head injury could be more serious because it may cause bleeding or bruising of the brain. ... Turn a child who is vomiting or having a seizure onto his or her side while trying to keep the head and neck straight. This ...
... begins the celebration after she headed the ball past Japan goalie Miho Fukumoto in the first half of the women's soccer ... U.S. midfielder Carli Lloyd, right, begins the celebration after she headed the ball past Japan goalie Miho Fukumoto in the ... U.S. midfielder Carli Lloyd, right, begins the celebration after she headed the ball past Japan goalie Miho Fukumoto in the ... U.S. midfielder Carli Lloyd, right, begins the celebration after she headed the ball past Japan goalie Miho Fukumoto in the ...
... head lice treatments, head lice diagnosis, and head lice prevention information. ... Education and information about head lice, information for parents, information for schools, ... Adult head lice are roughly 2-3 mm long. Head lice infest the head and neck and attach their eggs to the base of the hair shaft ... Head Liceplus icon *General Informationplus icon *Frequently Asked Questions (FAQs) ...
head / hed/ • n. 1. the upper part of the human body, or the front or upper part of the body of an animal, typically separated ... head up Sailing steer toward the wind.DERIVATIVES: head·ed adj. [in comb.] bald-headed men woolly-headed New Age thinking. head ... See also put ones head on the block, bury ones head in the sand, headless, heads, a price on someones head. ... headed notepaper. 3. [intr.] (also be headed) move in a specified direction: he was heading for the exit we were headed in the ...
... & MEDIAL TEMPORAL DAMAGE A PROSPECTIVE CONTROLLED STUDY USING SPECT Deepak Agrawal, Naveen K* Departments of ... Minor head injury * 1. MINOR HEAD INJURY & MEDIAL TEMPORAL DAMAGE A PROSPECTIVE CONTROLLED STUDY USING SPECT ,ul,,ul,,li,Deepak ... J Head Trauma Rehabil 1993;8:86 * 7. ,ul,,li,The Post Concussion Syndrome Checklist score ( PCSC )- via discussion with parent ... 8. ,ul,,ul,,ul,,ul,,ul,,li,NCCT head ,/li,,/ul,,/ul,,/ul,,/ul,,/ul,INVESTIGATION ,ul,,ul,,ul,,ul,,ul,,li,Clinical ( PCSC ) ,/li ...
Tips On Choosing A Top Shower Head. How to choose a top shower head for you bathroom renovation might be the question that you ... There are even those cylinder types of top shower heads. There are a variety of shapes when it comes to the top shower head and ... A lot of people dont think about replacing your shower head and upgrading to cool new things like LED shower heads or towel ... You Have a LED Shower Head - Having a LED shower head can make showers very entertaining, so you should definitely invest some ...
... includes malignant tumors that most commonly arise from the moist squamous cell mucosa or lining of the ... Examples of postural modifications include the head tilt, head rotation, head back, side lying, and chin tuck. ... The Position Statement on Screening for Head and Neck Cancer by the American Head and Neck Society (AHNS) indicates that " ... n.d.). Head and Neck Cancer. (Practice Portal). Retrieved month, day, year, from www.asha.org/Practice-Portal/Clinical-Topics/ ...
moving or coming from a direction in front of the head or prow of a vessel: head sea; head tide; head current. ... by up): to head a school; to head up a department. *to direct the course of; turn the head or front of in a specified direction ... to come or grow to a head; form a head: Cabbage heads quickly. ... feds versus the heads; an acid-head; a pothead. * a habitual ... extremely; excessively: We screamed our heads off at that horror movie. He laughed his head off at the monkeys antics. ...
Source for information on deaths head: The Oxford Companion to the Body dictionary. ... deaths head The figure of the deaths head has been a prominent symbol of human mortality and the vanity of life in Western ... Head , head / hed/ • n. 1. the upper part of the human body, or the front or upper part of the body of an animal, typically ... deaths head The figure of the deaths head has been a prominent symbol of human mortality and the vanity of life in Western ...
Read about the signs of a severe head injury, such as seizures, unconsciousness, drowsiness, repeated vomiting, and blood or ... Find out how severe head injuries are diagnosed. Treating a severe head injury. Severe head injuries always require hospital ... Diagnosing a severe head injury. If you have had a severe head injury and theres a chance you may have a brain injury, youll ... Preventing head injuries. It can be difficult to predict or avoid a head injury, but there are some things you can do to reduce ...
... tickly feeling on your head be head lice? Learn about these tiny insects, such as how to tell if you have them, and how to ... Trouble sleeping, because head lice are most active in the dark. How do you know if you have head lice?. A diagnosis of head ... Head lice do not spread disease.. Who is at risk for head lice?. Children ages 3-11 and their families get head lice most often ... What are head lice?. Head lice are tiny insects that live on peoples heads. Adult lice are about the size of sesame seeds. The ...
Problems of tone dog "Head Under Water," a small-town murder mystery that cant make up its mind whether its a black comedy or ... Head Under Water Germany * Production: A Typhoon Films production, in association with WDR. (International sales: Kinowelt Intl ... Head Under Water The first feature by German helmer Andreas Kleinert since his well-received 1999 drama Paths in the Night ...
Shock Head Soul Blending docu elements with fictional reconstruction and trippy CGI, the pic explores the fascinating case of ... "Shock Head Soul," Brit experimental director Simon Pummells study of mental illness and its treatment at the turn of the 20th ... "Shock Head Soul," Brit experimental director Simon Pummells study of mental illness and its treatment at the turn of the 20th ... "Shock Head Soul," Brit experimental director Simon Pummells study of mental illness and its treatment at the turn of the 20th ...
Then Mom headed to bed & told me to keep up... More , with "20/20." I was writing. Earlier, I had been listening to church on ... Head Injury Treatment In Gurgaon and Rohtak By Dr. Vikas Kathuria eBook (PDF): $0.00 ... Volume 2844, Head Injury --- Healthy Kids School Canteen Association By Print Wikipedia Hardcover: $80.00 ... MILD TO MODERATE HEAD INJURY By José Manuel Ortega Zufiría Paperback: $53.80 ...
An Interior Ministry spokesman says the deputy head of the Muslim Brotherhood, Khairat el-Shater, considered the most powerful ... Josh Homme kicks female photographer in the head at KROQ Acoustic Christmas. 1,820 reactions4%73%23% ... CAIRO (AP) - An Interior Ministry spokesman says the deputy head of the Muslim Brotherhood, Khairat el-Shater, considered the ...
Head, heart, and wallet all working together.. ">. Between now and May Day, high school seniors will make college enrollment ... Considering a college with ones head means looking primarily at programs:. * Make sure you have options: Many students do ... Considering a college with ones head means looking primarily at programs:. * Make sure you have options: Many students do ... I often boil down all thats bubbling into consideration of three key factors: head, heart, and wallet. ...
... helmets to measure the force of hits to the head they absorb. ... After a particularly violent weekend of head-to-head collisions ... Youre lowering your head on certain types of hits. I think technologies can be used in a preventive role as well. ... Increasingly concerned about the long-term effects of head trauma, the NFL last year modified its policies for the treatment of ... Measuring the force of blows to the head wont immediately lead to a concussion-prevention application, but Kevin Guskiewicz, a ...
Authority of Heads of State and Government (21st sess. : 1998 : Abuja) 110 2 _ $a International Society on Family Law. World ... A corporate name used as an established name in heading records or as an unestablished name in cross reference records.. ...
Same virus as Yaquina Head virus, or very closely related to it. ... Yaquina Head Abbreviation: YHV Status. Possible Arbovirus ...
Head lice may also be found in eyebrows and eyelashes. ... Head lice are tiny insects that live on the skin covering the ... Head lice are tiny insects that live on the skin covering the top of your head (scalp). Head lice may also be found in eyebrows ... Head lice infect hair on the head. Tiny eggs on the hair look like flakes of dandruff. However, instead of flaking off the ... Unlike body lice, head lice never carry or spread diseases.. Having head lice does not mean the person has poor hygiene or low ...
Note: Javascript is disabled or is not supported by your browser. For this reason, some items on this page will be unavailable. For more information about this message, please visit this page: About CDC.gov ...
Can We Prevent Head Lice?. To get rid of head lice and their eggs, and to help prevent them from coming back:. *Wash all bed ... What Are Head Lice?. Head lice are tiny wingless insects. They live among human hairs and feed on blood from the scalp. ... Head lice are annoying, but theyre not dangerous and they dont spread disease. Theyre not a sign of poor hygiene - head lice ... What Are the Signs & Symptoms of Head Lice?. Even though theyre tiny, you can see head lice. Heres what to look for:. *Lice ...
... division of Head and Neck Surgery/Cancer at OHSU is committed to excellence in research, education and clinical care and the ... rehabilitation of patients with diseases, cancers, and tumors, both benign and cancerous, of the head and neck. ...
A Melbourne youth charity director who rigged 28 raffles in a scam worth $7 million was jailed today for seven-and-a-half years.. Lawrence Shannon, 50, of Park Orchards, was given a minimum sentence of five years after pleading guilty to 28 counts of obtaining property by deception in Kids at Sea raffles held between 1995 and 2001.. The swindle netted Shannon $1.1 million and indirect benefits including a company yacht he used as his own, sailing three times with his family to Hamilton Island, the Victorian County Court was told. ...
  • be banging (or knocking ) one's head against a brick wall be doggedly attempting the impossible and suffering in the process. (encyclopedia.com)
  • to wash one's head. (infoplease.com)
  • What Are Head Injuries? (kidshealth.org)
  • Head injuries are common in children and teens. (kidshealth.org)
  • Head injuries can be mild, like a bump on the head, or more serious, like a concussion. (kidshealth.org)
  • Most head injuries in childhood are due to falls . (kidshealth.org)
  • What Are the Types of Head Injuries? (kidshealth.org)
  • More serious head injuries can cause a brain contusion. (kidshealth.org)
  • How Are Head Injuries Diagnosed? (kidshealth.org)
  • Doctors diagnose head injuries by asking questions about how the injury happened and doing a careful exam of the head. (kidshealth.org)
  • [1] Because head injuries cover such a broad scope of injuries, there are many causes-including accidents, falls, physical assault, or traffic accidents-that can cause head injuries. (wikipedia.org)
  • Adults have head injuries more frequently than any age group resulting from falls, motor vehicle crashes, colliding or being struck by an object, or assaults. (wikipedia.org)
  • Children, however, may experience head injuries from accidental falls or intentional causes (such as being struck or shaken) leading to hospitalization. (wikipedia.org)
  • Head injuries include both injuries to the brain and those to other parts of the head, such as the scalp and skull . (wikipedia.org)
  • Head injuries can be closed or open. (wikipedia.org)
  • If the impact causes the head to move, the injury may be worsened, because the brain may ricochet inside the skull causing additional impacts, or the brain may stay relatively still (due to inertia) but be hit by the moving skull (both are contrecoup injuries). (wikipedia.org)
  • Severe head injuries require immediate medical attention because there's a risk of serious brain damage. (www.nhs.uk)
  • The Glasgow Coma Scale (GCS) is often used to assess head injuries. (www.nhs.uk)
  • Some people with significant head injuries have a high GCS score initially, but their score decreases when they're reassessed at a later stage. (www.nhs.uk)
  • Severe head injuries always require hospital treatment. (www.nhs.uk)
  • If they can, with the help of technology, gain a greater understanding in that area, they hope that will help them better protect players against head injuries. (washingtonpost.com)
  • Other head injuries may damage the nerves in the outer part of the head. (medicalnewstoday.com)
  • Despite a decrease in bicycle-related head injuries since the passage of legislation requiring bicyclists to wear helmets, a Canadian statistical analysis has led researchers to question whether the numbers really represent a success story. (medpagetoday.com)
  • Being directly above the back wheel, one can hypothesize that passengers are more prone to being ejected from the motorcycle, likely adding to the potential for serious head and neck injuries," Evans said. (reuters.com)
  • The primary take-away from this study is that motorcycle helmets significantly reduce head and neck injuries in both drivers and passengers," Sunshine said by email. (reuters.com)
  • This injury is a result due to a blow to the head that could make the person's physical, cognitive, and emotional behaviors irregular. (wikipedia.org)
  • Lice die quickly (within two days) without feeding, so they cannot live very long away from a person's head. (ca.gov)
  • Use disposable gloves and look at the person's head under a bright light. (medlineplus.gov)
  • A massaging device for massaging a person's head is disclosed. (freepatentsonline.com)
  • bang (or knock ) people's heads together reprimand people severely, esp. (encyclopedia.com)
  • Head lice are tiny insects that live on people's heads. (medlineplus.gov)
  • Head lice are small insects that live in people's hair and feed on their blood. (ca.gov)
  • She often amused others by telling what the bumps and dips on people's heads indicated. (standard.net)
  • No products match your search, but we found some interesting Drug Information for Head & Shoulders . (walgreens.com)
  • Personal hygiene and cleanliness have nothing to do with getting head lice. (medlineplus.gov)
  • It happens when a blow to the head or another injury moves the head back and forth with a lot of force. (kidshealth.org)
  • What Are the Signs & Symptoms of a Head Injury? (kidshealth.org)
  • About half of children with a head injury get a headache. (kidshealth.org)
  • This happens in some children after a head injury. (kidshealth.org)
  • Doctors often do a CAT scan of the head if the injury is more serious. (kidshealth.org)
  • What Should I Do When a Child Has a Head Injury? (kidshealth.org)
  • There's no need to keep a child awake after a head injury. (kidshealth.org)
  • What Should I Do if a Child Is Unconscious After a Head Injury? (kidshealth.org)
  • Premature babies who require intensive care frequently have head ultrasounds to rule out neurological complications of prematurity, such as bleeding in the brain (intraventricular hemorrhage, or IVH) or injury to the white matter of the brain surrounding the ventricles (periventricular leukomalacia, or PVL). (kidshealth.org)
  • A head injury is any injury that results in trauma to the skull or brain . (wikipedia.org)
  • The terms traumatic brain injury and head injury are often used interchangeably in the medical literature. (wikipedia.org)
  • In the case of an open head injury, the skull is cracked and broken by an object that makes contact with the brain. (wikipedia.org)
  • While these symptoms happen immediately after a head injury occurs, many problems can develop later in life. (wikipedia.org)
  • Alzheimer's disease , for example, is much more likely to develop in a person who has experienced a head injury. (wikipedia.org)
  • Brain damage, which is the destruction or degeneration of brain cells, is a common occurrence in those who experience a head injury. (wikipedia.org)
  • A closed (non-missile) head injury is where the dura mater remains intact. (wikipedia.org)
  • A penetrating head injury occurs when an object pierces the skull and breaches the dura mater. (wikipedia.org)
  • A head injury may cause skull fracture , which may or may not be associated with injury to the brain. (wikipedia.org)
  • Brain injury can occur at the site of impact, but can also be at the opposite side of the skull due to a contrecoup effect (the impact to the head can cause the brain to move within the skull, causing the brain to impact the interior of the skull opposite the head-impact). (wikipedia.org)
  • These pages focus on severe head injury. (www.nhs.uk)
  • Dial 999 immediately to request an ambulance if you're with someone who experiences any of these symptoms after a head injury. (www.nhs.uk)
  • If you have had a severe head injury and there's a chance you may have a brain injury, you'll have a CT scan to assess the seriousness of the injury. (www.nhs.uk)
  • This is a scale from 3 to 15 that identifies how serious your head injury is, based on your symptoms and whether the brain has been damaged (with 3 being most severe and 15 the least severe). (www.nhs.uk)
  • A GCS score of 13 or above would indicate a minor head injury. (www.nhs.uk)
  • A score of 9 to 12 would be a moderate head injury. (www.nhs.uk)
  • If a person has a severe head injury, they'll have a score of 8 or less. (www.nhs.uk)
  • If you have a severe head injury, you'll be closely monitored and frequently reassessed to check your condition. (www.nhs.uk)
  • Read more about how a severe head injury is treated and recovering from a severe head injury . (www.nhs.uk)
  • A severe head injury can result in pressure being placed on the brain because of bleeding, blood clots or a build-up of fluid. (www.nhs.uk)
  • It can be difficult to predict or avoid a head injury, but there are some things you can do to reduce the risk of serious injury. (www.nhs.uk)
  • Wearing a safety helmet during certain activities, such as skiing or cycling, may also help to prevent a serious head injury. (www.nhs.uk)
  • We are specialized in Brain Tumor Surgery, Deep brain stimulation, Brain Hemorrhage treatment, Head Injury and Spine surgery In gurgaon. (lulu.com)
  • A 'bump' on the head can change your life and may cause a serious 'invisible' brain injury. (lulu.com)
  • After many months of not getting better, her doctor decided the injury was 'all in her head' and she was labeled a malingerer (slacker). (lulu.com)
  • Woodpeckers and head injury. (ilo.org)
  • The minor head injury is actually irrelevant here as it has done no harm at all apart from trigger your anxiety and panic attacks. (netdoctor.co.uk)
  • This is likely to increase the risk for serious head injury despite helmet use, given that being ejected from the motorcycle at a high rate of speed may be too severe of an impact for the helmet to be as protective," Evans said by email. (reuters.com)
  • An important part of a neurologist's duties includes assessing whether a not a patient has brain activity after a devastating head injury, neurologist Justin Sattin tells Popular Mechanics. (popularmechanics.com)
  • Usually when we say that the prognosis is poor after something like a head injury, it means that the person is unlikely to regain the ability to take care of themselves independently. (popularmechanics.com)
  • Meanwhile, the National Head Start Association, an Alexandria, Va.-based group representing program staff members and parents, joined with an organization called Business Leaders for Sensible Priorities to sponsor a full-page advertisement in the Oct. 19 edition of The New York Times . (edweek.org)
  • Head lice are tiny insects that live on the skin covering the top of your head (scalp). (medlineplus.gov)
  • Unless a child has many head lice, it's more common to see nits in the hair than live lice crawling on the scalp. (kidshealth.org)
  • Gouvier WD, Cubic B, Jones G, Brantly P, Cutlip Q. Postconcussion symptoms and daily stress in normal and head-injured college populations. (slideshare.net)
  • What are the symptoms of head lice? (medlineplus.gov)
  • This article looks at the symptoms of a head cold as well as a range of home remedies available to help manage its symptoms. (medicalnewstoday.com)
  • A head cold may resemble other similar conditions but differs due to the location of the symptoms. (medicalnewstoday.com)
  • A head cold occurs when a viral infection causes symptoms primarily in the head, such as a stuffy nose or a headache . (medicalnewstoday.com)
  • Sinus infections share many of the same symptoms as head colds, but their causes are usually different. (medicalnewstoday.com)
  • Symptoms of a head cold begin to appear within 3 days of exposure to rhinovirus or another cold-causing virus. (medicalnewstoday.com)
  • Symptoms of a head cold may include a runny nose, sneezing, and a sore throat. (medicalnewstoday.com)
  • Most people recover from a head cold in 7-10 days , but symptoms may last longer in some cases. (medicalnewstoday.com)
  • A contusion (bruise) happens when a blow to the head injures the skin and the soft tissue under it. (kidshealth.org)
  • thorough removal of head lice and nits without the use of harmful chemicals or pesticides. (prweb.com)
  • As parents and children enter into the 2009-2010 academic school year, the NPA strongly recommends the early screening for head lice and nits with safe and healthy tools to keep children nit and anxiety free. (prweb.com)
  • Treatments for head lice include both over-the-counter and prescription shampoos, creams, and lotions. (medlineplus.gov)
  • Head lice infestation, or pediculosis, is spread most commonly by close person-to-person contact. (cdc.gov)
  • The National Pediculosis Association sponsors National Head Lice Prevention each September to raise the awareness and decrease the stress of head lice as children return back to school. (prweb.com)
  • Unlike a broken bone where trauma to the body is obvious, head trauma can sometimes be conspicuous or inconspicuous. (wikipedia.org)
  • Increasingly concerned about the long-term effects of head trauma, the NFL last year modified its policies for the treatment of a player who suffers a concussion, prohibiting his return to a subsequent game or practice without clearance from an independent neurologist. (washingtonpost.com)
  • Patients who suffer this kind of head trauma simply don't regain consciousness. (popularmechanics.com)
  • Herniation refers to the situation where the pressure inside the head is increased due to brain swelling from trauma or stroke, or the addition of something that shouldn't be there, such as a tumor or hemorrhage," he says. (popularmechanics.com)
  • We see impacts with an enormous amount of energy and the player is not concussed,' said Richard Ellenbogen, co-chairman of the NFL's head, neck and spine committee. (washingtonpost.com)
  • Same virus as Yaquina Head virus, or very closely related to it. (cdc.gov)
  • Head colds can closely resemble other conditions, including chest colds and sinus infections. (medicalnewstoday.com)
  • it is estimated that more than 65,000 new cases of head and neck cancer will be diagnosed in 2019. (merck.com)
  • Head lice are a problem in homes, day care centers, and elementary and preschools. (ca.gov)
  • Head colds are transmitted when an infected person sneezes or coughs, projecting droplets infected with the virus into the air or onto people around them. (medicalnewstoday.com)
  • Although anyone can get a head cold, and most people will experience many colds in their lifetime, some factors increase the risk of getting sick. (medicalnewstoday.com)
  • A head ultrasound is a safe and painless test that uses sound waves to make images of the brain. (kidshealth.org)
  • During the examination, an ultrasound machine sends sound waves into the head and images are recorded on a computer. (kidshealth.org)
  • You don't have to do anything special to prepare your child for a head ultrasound. (kidshealth.org)
  • The head ultrasound will be done in the radiology department of a hospital or in a radiology center. (kidshealth.org)
  • The head ultrasound can be done with the baby on his or her stomach or back, or even in a parent's arms, if necessary. (kidshealth.org)
  • The head ultrasound test is painless, though your child may feel a slight pressure on the head as the transducer is moved. (kidshealth.org)
  • No risks are associated with a head ultrasound. (kidshealth.org)
  • If you have questions about the head ultrasound, speak with your doctor. (kidshealth.org)
  • books.google.com - Head and neck ultrasound is a standard radiological examination performed at most hosp itals. (google.com)
  • Key topics include: normal anatomy of the head and neck region, practical scanning technique, the salivary glands, the thyroid and parathyroid, lymph nodes, cystic masses, the larynx, what the surgeon needs to know and why, biopsy techniques and basic vascular ultrasound. (google.com)
  • Eyes in the head found, in several types of insects, are in the form of a pair of compound eyes with multiple faces. (wikipedia.org)
  • Head lice are tiny wingless insects. (kidshealth.org)
  • The head massager comprises of a hand-held housing that encloses an electric motor that may be battery operated. (freepatentsonline.com)
  • The ad-signed by 90 business leaders-urges Congress to reject the Republican Head Start plan and argues that the program saves society and the government money. (edweek.org)
  • She was head and shoulders better than any of her rivals. (wiktionary.org)
  • He was head and shoulders above the others in the law firm. (wiktionary.org)
  • They bring in every figure of speech, head and shoulders . (wiktionary.org)
  • A magician doesn't reveal his secrets, but Rich pointed out that this isn't like those other head drops, when the prankster just raises his or her shoulders to give the illusion that the head is falling. (yahoo.com)
  • Askmark H, Olsson Y, Rossitti S (2000) Treatable dropped head syndrome in hypothyroidism. (springer.com)
  • Goh KJ, Wong KT, Tan CT (2000) Myopathic dropped head syndrome: a syndrome of mixed aetiology. (springer.com)
  • the obverse of a coin, as bearing a head or other principal figure (opposed to tail). (infoplease.com)
  • Head and neck cancer (HNC) includes malignant tumors that most commonly arise from the moist squamous cell mucosa or lining of the head and neck regions. (asha.org)
  • The NPA works to encourage the nation's health and child care professionals to adopt standardized head lice management programs in an effort to keep children in school lice and nit free. (prweb.com)
  • It remains unclear if the incident will cost her job as head of the nation's Protestant faith. (telegraph.co.uk)
  • Head lice are parasites, and they need to feed on human blood to survive. (medlineplus.gov)
  • Both over-the-counter and prescription medications are available for treatment of head lice infestations. (cdc.gov)
  • Expert contributors are drawn from the disciplines of oral and maxillofacial surgery, head and neck surgery, plastic surgery, and otolaryngology, and they provide state-of-the-art guidance based on extensive experience with current techniques as well as technological advances in managing head, neck, and orofacial infections. (elsevier.com)
  • Doctors order head ultrasounds when there's a concern about neurological problems in an infant. (kidshealth.org)
  • Neurological examination revealed prominent forward head drop, weak anteflexion and retroflexion, nuchal rigidity, weakness of the shoulder girdle, cogwheel rigidity, and tetraspasticity. (springer.com)
  • Though invertebrate chordates - such as the tunicate larvae or the lancelets - have heads, there has been a question of how the vertebrate head, characterized by a bony skull clearly separated from the main body, might have evolved from the head structures of these animals. (wikipedia.org)
  • The transducer emits high-frequency sound waves and a computer measures how the sound waves bounce back from the head. (kidshealth.org)
  • If a person injures the back of their head, they may damage the nerves inside the brain. (medicalnewstoday.com)
  • These nerves are responsible for the feelings and sensations on the top and back of the head. (medicalnewstoday.com)
  • Heading back from Goleen, you can bear north to join the scenic coast road that follows the edge of Dunmanus Bay for most of the way to Durrus. (lonelyplanet.com)
  • Over the past week the have change from a general 'tension' type headache to a throbing headache in the back of my head that intensifies with movement especially standing up or bending over. (medhelp.org)
  • I was back and forth to my GP six times and even took myself to A & E, as I had convinced myself that I had done something more serious, but all the doctors told me the same, that I hadn't done anything to my head. (netdoctor.co.uk)
  • Safety Rules, As You Head Back to School! (prnewswire.com)
  • As kids head back to school, the U.S. Consumer Product Safety Commission is urging parents and students to keep safety top of mind. (prnewswire.com)
  • Gator pesters Florida neighborhood, head-butts trapper, makes last-ditch effort to escape When a Florida Fish and Wildlife trapper tried to put this gator in the back of a pickup truck, the animal made a last-ditch effort to escape. (usatoday.com)
  • The gator appeared to have its mouth and legs bound, but it still fought back, whipping its neck around to head-butt one of the trappers. (usatoday.com)
  • But you can help prevent head blows. (kidshealth.org)
  • Measuring the force of blows to the head won't immediately lead to a concussion-prevention application, but Kevin Guskiewicz, a committee member and chairman of the department of exercise and sport science at the University of North Carolina, said the information-gathering nevertheless should begin as soon as possible. (washingtonpost.com)
  • This resource does not discuss benign tumors of the head and neck region, tumors of the thyroid, skin cancers involving the head and neck, auditory nerve lesions, and brain tumors. (asha.org)
  • A logical organization addresses these topics: 1) issues that are common to all infections of the head and neck region, 2) infections of specific parts of the region, and 3) infections related to certain procedures, types of patients, unusual organisms, and medical-legal implications. (elsevier.com)
  • Head lice are more common in close, overcrowded living conditions. (medlineplus.gov)
  • The Associate Head of School works in close partnership with the Head of School to hold and advance Eagle Rock's mission and vision, achieve operational and educational goals, and embody our commitment to antiracism and social justice. (idealist.org)
  • The hand-held housing has multiple strands of flexible wires fixably attached to its bottom that define an open cavity generally in the shape of a human head. (freepatentsonline.com)
  • When a person places his head inside the cavity defined by the multiple strands of flexible wires, the multiple strands of flexible wires will apply pressure to the user's head. (freepatentsonline.com)
  • wherein the head massager device may be placed over a user's head enclosing the user's head in the cavity to massage the user's head with the vibrating multiple strands of flexible wires. (freepatentsonline.com)
  • The decision to use induction chemotherapy in head and neck cancer remains controversial when compared to upfront concurrent chemoradiotherapy and should be considered in the context of a multidisciplinary team (MDT) setting. (eviq.org.au)
  • Head and neck cancer is a term used to describe a number of different malignant tumors that develop in or around the throat, larynx (voice box), nose, sinuses and mouth. (merck.com)
  • Your physician will ask about problems of the ear, nose, and throat and examine the head and neck. (entnet.org)
  • In this timely and original analysis, David Goodhart divides human aptitudes into three: Head (cognitive), Hand (manual and craft) and Heart (caring, emotional). (penguin.co.uk)