Angeler, D. G., A. N. Mullner, and M. Schagerl. 1999. Comparative ultrastructure of the cytoskeleton and nucleus of Distigma (Euglenozoa). European Journal of Protistology 35:309-318.. Belhadri, A., D. Bayle, and G. Brugerolle. 1992. Biochemical and immunological characterization of intermicrotubular cement in the feeding apparatus of phagotrophic eugelnoids: Entosiphon, Peranema, and Ploeotia. Protoplasma 168:113-124.. Belhadri, A., and G. Brugerolle. 1992. Morphogenesis of the feeding apparatus of Entosiphon sulcatum: an immunofluorescence and ultrastructural study. Protoplasma 168:125-135.. Breglia, S. A., C. H. Slamovits, and B. S. Leander. 2007. Phylogeny of phagotrophic euglenids (Euglenozoa) as inferred from hsp90 gene sequences. J. Eukaryot. Microbiol. 52:86-94.. Brosnan, S., P. J. P. Brown, M. A. Farmer, and R. E. Triemer. 2005. Morphological separation of the euglenoid genera Trachelomonas and Strombomonas (Euglenophyta) based on lorica development and posterior strip reduction. J. ...
Peranema flagellate. Light microscope footage of a Peranema flagellate. Peranema is a genus of flagellated protists commonly found in freshwater habitats. They have two flagella, one used for swimming. They feed on live prey, such as yeast, bacteria and other flagellates. Filmed with differential interference contrast illumination. - Stock Video Clip K005/6646
This brilliantly illustrated atlas provides a simple visual tool to help identify photosynthetic euglenoids, flagellated single celled organisms. The atlas provides basic background information such as the history of the various genera, notes on where they can be found, what the cells look like, and the internal and external structures that can be used to identify species. A dichotomous key provides a simple means to identify each of the genera, and a full glossary defines all of the scientific terms used in the text. The main body of the book consists of high resolution color plates of each of the species, organized by genus. The photographs on each plate illustrate the main features used to identify each organism, such as size and body shape, flagellar length, pellicle structure, type of chloroplast, shape, and arrangement of mucocysts. This text will be useful to phycologists, protozoologists, ecologists studying wetland systems, and managers of reservoirs, lakes, ponds and natural resources. ...
Coloured scanning electron micrograph (SEM) of Pyramimonas sp., flagellated, scale-covered, marine, green alga. The genus Pyramimonas is a single celled alga that belongs to the group of green algae (Chlorophyta) called prasinophytes. The cell possesses one to many flagella for motility and contains only 1-2 chloroplasts for photosynthesis (not shown in this image). Some species supplement their nutrition by ingesting bacteria and other organic matter, a process called mixotrophy. The cell body is covered with cellulose scales in several layers. These scales can have a complex morphology. Pyramimonas species are abundant in marine plankton and are typically part of the nanoplankton of the sea. Magnification: x3,465 when shortest axis printed at 25 millimetres. - Stock Image C032/1197
The parasitism is a non-mutual symbiotic interaction, where one species, the parasite (sometime also call symbiont), is living at the expense of the other, the host. In general, a parasite does not kill its host, but lower its fitness (growth, fertility, longevity, …). In some case, these parasites obligatory kill their host to finalize its life cycle (the so-called parasitoids). Most of parasites of unicellular hosts (such as microalgae) are parasitoids. Parasites and parasitoids could be osmotrophic (they absorb nutrients from solution like fungi). Others are phagotrophic, meaning that they are able to directly ingest particulate matter by phagotrophy.. ...
Surveys, breadth without depth, are hardly ideal, but watcha gonna do? TPPs classroom is over 800 miles from seawater at a public university that cannot afford stools for students to sit on let alone paying for a nice shipment of seaweeds from a coastal area. So you have to make do with small ones, immature ones, pickled and dried specimens, and prepared slides. Lots of other green beasties get covered in this survey too: cyanobacteria (formerly called blue-green algae), diatoms, dinoflagellates, and euglenoids. No chloroarachniophytes though. Too bad. Little green spidery organisms are kinda cute. This survey is an observational challenge for students because many of these organisms are small, very small. Some are motile and more agile than are students at the controls of a microscope. Too often students get too much material on a slide for observation; if you can see it with the naked eye, you dont need a microscope. Less is often better. Patience helps because you have to look around, a lot ...
The Acheulian and Levallois tools at Nor Geghi appear to be eroded from a single plane, implying that they were made at the same time, and presumably by the same people (the alternative theory, that two different groups were living in the area and both visiting the site to make tools is rejected, since all human groups likely to have been in the area at the time are thought to have been intelligent enough to adopt a better technology if they saw it being used). This implies that the tool-makers were in the process of switching from one technology to the other when occupying the site. This is significant, as it is currently widely believed that the Levallois technology was developed in Africa and then spread to Eurasia, replacing the earlier Acheulian technology. At Nor Geghi a transitional stage is for the first time recorded outside of Africa, suggesting that the development of a the new technology was not confined to a single place, but developed independently from the old technology across ...
Adolescence is transitional stage from childhood to adulthood. Parenting tips is much needed because adolescents tend to be sensitive, self-conscious and rebellious.
Synonym(s):. Life-form: Solitary. Size: Length 64-115 µm. Resting spore:. Note:. Distinctive features: Cell with two or four flagella, pellicula with broad stripes, chloroplasts radiating from two paramylon centers. This species is often very common in early spring in the Skagerrak. Similar species:. Distribution: Arctic, North Atlantic, Skagerrak. Literature: ...
Biology Animations includes selected, high quality biological animations; about cell biology, microbiology, genetics, immunology, cancer treatments and diagnosis.... ...
Linton E.W., Karnkowska-Ishikawa A., Kim J.I., Shin W., Bennett M., Kwiatowski J., Zakryś B. & Triemer E.R. (2010). Reconstructing Euglenoid Evolutionary Relationships using Three Genes: Nuclear SSU and LSU, and Chloroplast 16S rDNA Sequences and the description of Euglenaria gen. nov. (Euglenophyta). Protist 161: 603-619 ...
In older classifications, a phylum of parasitic or free-living heterotrophic protozoa that possess one or more undulipodia (flagella) for locomotion. The organisms in this phylum have now been reclassified: members lacking mitochondria are classed as excavates, along with euglenids, while others, including Trypanosoma (the sleeping-sickness parasite) and Naegleria, which have mitochondria with flattened cristae, are placed in the Discomitochondria. ...
The explosive growth of microbiome research has yielded great quantities of data. These data provide us with many answers, but raise just as many questions. 16S rDNA-the backbone of microbiome analyses-allows us to assess α-diversity, β-diversity, and microbe-microbe associations, which characterize the overall properties of an ecosystem. However, we are still unable to use 16S rDNA data to directly assess the microbe-microbe and microbe-environment interactions that determine the broader ecology of that system. Thus, properties such as competition, cooperation, and nutrient conditions remain insufficiently analyzed. Here, we apply predictive community metabolic models of microbes identified with 16S rDNA data to probe the ecology of microbial communities. We developed a methodology for the large-scale assessment of microbial metabolic interactions (MMinte) from 16S rDNA data. MMinte assesses the relative growth rates of interacting pairs of organisms within a community metabolic network and whether
Eukaryotes and Archaea developed separately from a modified eubacterium. The origins of the endomembrane system and mitochondria are also unclear. The phagotrophic hypothesis proposes that eukaryotic-type membranes lacking a cell wall originated first, with the development of endocytosis, while mitochondria were acquired by ingestion as endosymbionts. The syntrophic hypothesis proposes that the proto-eukaryote relied on the proto-mitochondrion for food, and so ultimately grew to surround it. Here the membranes originated after the engulfment of the mitochondrion, in part thanks to mitochondrial genes (the ...
Imagistica sursei magnetice este o metoda mai recenta, care permite a corela acuratetea temporo-spatiala a magnetoencefalografiei cu datele obtinute in urma cancer cerebral astrocitoma prin RM. Tumorile lobului occipital: fotopsie halucinații vizuale ca scântei, flash-uri de luminăconvulsii, vedere încețoșată, precum și sinteza spațială și analiză, tulburări hormonale, dizartrie, ataxie, astasia, nistagmus, pareze privirea în sus, poziția capului forțat, tulburări de auz și surzenie, o încălcare a înghițitului, răgușeală. They occur most often in adults between the ages of 45 and 70 years.
Mammals have keen hearing owing to their complex inner ear. In our vertebrate ancestors, as in extant reptiles, the three bones that make up the inner ear were instead part of the jaw. Understanding the functional transition of these bones is challenging given their small and delicate nature. Mao et al. describe a new genus and species of stem therian mammal represented by six well-preserved specimens, seemingly caught as they slept huddled together (see the Perspective by Schultz). The unprecedented preservation reveals a clear transitional stage between the two very different functions of the bones.. Science, this issue p. 305; see also p. 244 ...
Beyond Metafiction deals with metafictional texts from that tense transitional stage in Soviet literary history, the late 1920s. All were written by fellow traveling authors at various stages of accepting the new aesthetic of social command that preceded Socialist Realism as official literary policy. David Shepherds rather enormous goal is to ask whether there is anything specific to self-conscious prose fiction produced in the Soviet Union that might contribute to a consideration not only of some well-established conceptions about such writing generally but also . . . of Soviet literary history. Shepherd succeeds in stimulating some slight reassessment in both of these areas.. In its earliest uses, the term metafiction described self-referential art concerned with probing itself as art and with meditating on the key aesthetic figure of the author. Typically, it has been characterized as extrahistorical, hermetic, self-sufficiently narcissistic and, because of its position outside of ...
Discharge lounges enable the swift movement of patients imminently awaiting hospital discharge, to free beds without delay. This Qualitative Yin-Style Case Study describes the patient and caregivers experience of transition from an Acute Medicine Unit (AMU) to a discharge lounge and staff perspectives, as organisers of this process. Audiorecorded, interviews and focus groups were undertaken. Data were analysed using Framework Analysis. Lack of patientcenteredness in moving patients to the discharge lounge emerged with three themes: moving the problem; being moved and feeling removed. Patients were transferred at accelerated speed. Communications between staff, patients and carers were abruptly curtailed. Patient transfer from AMU to a discharge lounge is a transitional stage in the acute discharge process and must be adequately communicated.. ...
According to some published data, we assume that the main reason for the good results of our Prematurity-Prevention-Program is not the early detection of existing infections, but the early detection of their precursors, namely disturbances of the vaginal milieu:. Hillier et al. [1992b] diagnosed an intermediate pattern between normal flora and Bacterial Vaginosis - see also Schröder [1921] - in 16% of the pregnant women examined, while 22% of the women suffered from Bacterial Vaginosis, and 61% had a normal flora. Of the women with such a transitional stage in the 2nd trimester, in the 3rd trimester in about 1/3 the findings were the same, in about 1/3 the findings were normal, and about 1/3 developed a Bacterial Vaginosis.. Hay et al. [1994] found in a study an increased risk for loss of pregnancy, when just an intermediate pattern was present.. Viehweg et al. [1997] reported, that an increasing pH value during the course of pregnancy leads to an increased risk of prematurity, even when the pH ...
From 28 to 33 weeks gestation, significant neurological reorganization takes place, initiating fetal behavioral individuality and capacity for extrauterine survival. Infants born at this transitional stage exhibit unexpectedly significant brain dysfunction as they develop and age. The majority of these infants will develop psychomotor, cognitive, and attentional function deficits as well as emotional vulnerability and substandard school performance. Research suggests that these symptoms are due to a central deficit in frontal lobe processing of complex information. This central deficit may result from increased vulnerability of cerebral white matter during the last trimester of gestation, its phase of most rapid development. Persistent stress due to inappropriate sensory stimulation may contribute to alteration of early brain structure and function. This study will identify specific adaptations of the preterm brain to the transient NICU experience in order to estimate the potential of such ...
Top 10 tissues for 1005_at (Homo sapiens, Affymetrix Probeset): bone marrow endothelium progenitor cell, blood vessel endothelium cell, bone marrow monocyte, corneal limbus, cornea, band cell, bone marrow polymorphonuclear cell (PMN), peripheral blood transitional stage B-cell (unspecified), blood neutrophil granulocyte, pulmonary (lung) myofibroblast
The excellence of the teacher is to identify the difference in talents of students. Roman Scholar Quintilian. Why are young people like they are at each life passage? What can we do so they can do better at each transitional stage?. ELF17 was about making a positive difference to individuals and their communities by understanding life shaping developmental and environmental factors and path changers in the journey from infancy to adulthood in the years 0-25 years, during which the brain matures, and acting on the need for timely interventions for those at risk to get them back on track.. Key research input. The forum picked up on the 45+ years old Dunedin Longitudinal Study. Pioneered by Dr Phil Silva, the University of Otagos Dunedin Multidisciplinary Health and Development Study examines the progressive results of ongoing research into the lives of 1,000 New Zealanders born 46 years ago in Dunedin.. Other relevant research came from the Christchurch Health and Development Study, a 39 year ...
Natural menopause is caused by ovarian failure due to aging. At birth, women may have as many as two million eggs within their ovaries. By puberty, this is reduced to about 300,000 and at menopause, the eggs are virtually absent. The accompanying declines in estrogen and progesterone production cause the characteristic symptoms of menopause.. Since periods rarely stop without warning, the transitional stage during which most women begin to become irregular prior to stopping altogether is called peri-menopause or pre-menopause. Typically lasting for two to three years, peri-menopause may last up to ten years before complete cessation of the menstrual period. During this time, women may experience a combination of PMS and menopausal symptoms or no symptoms of menopause at all.. Women who have had both ovaries and/or uterus (hysterectomy) surgically removed will experience a dramatic reduction in the production of all sex hormones, in effect, an artifically induced state of menopause called ...
Sprouts are the cheapest and most convenient source of complete nourishment. They are food for long-term health and wellness. If consumed judiciously and chosen over other foods, they can prevent diseases and lifestyle-related ailments. Sprouting a seed enables it to produce an enormously enhanced bundle of nutrients.A sprout is at the transitional stage between seed and plant. It is, to put it simply, a baby plant. These are essentially pre-digested foods as the seeds own enzymes do most of the work. The nutritional changes that occur during sprouting primarily happen because complex compounds get broken down into simpler forms. This, added to development of some essential nutrients, constituents, and breakdown of anti-nutrients, makes the whole phenomenon of sprouting possible. Metabolic activity in dormant seeds is initiated as soon as they are hydrated during soaking.Sprouted seeds acquire natural increased digestibility and nutrients as compared to unsprouted seeds. They provide us with ...
Relatively young for her level of acclaim, Toronto-based artist Winnie Truong (Hi-Fructose Vol. 22 cover artist) created her latest body of work, Rites of Passage, as a meditation on crossing the quarter-century mark of her lifetime. The new series of drawings, which debuted at Copenhagens Galleri Benoni on April 4, reflect Truongs simultaneous awareness of her youth and her mortality. The coming of age theme to Rites of Passage is an ambivalent take on my experiences of growth, decay and stagnation, Truong wrote in an email to Hi-Fructose. Its about moving through those transitional stages of adult life without fanfare, or epiphany. Hair, the dominant motif in Truongs work, changes its meaning here. Whereas before she enveloped ladies in bushy manes to challenge beauty norms, in Rites of Passage hair becomes like a cocoon or even a cobweb in a catacomb. In several of the drawings, her characters hair forms skull shapes that emerge almost like foreboding images inside of a crystal ...
For some women, the word perimenopause and or menopause sounds biologically cataclysmic. Not to mention the fact that its a taboo subject. As a result, they prefer not to talk about it, opting to deal with this natural occurrence in silence and solitude, and furthermore, pretend that they are aye, ok. Granted some women are indeed ok.. We are all biologically unique, so not everyone suffers the same effects that are associated with this transitional period. In fact, some women have no noticeable adverse effects.. Perimenopause is the stage that leads up to menopause (the ceasing of your menstruation), and it can begin as early as the late twenties, bringing with it symptoms that can throw a woman into a tailspin. Much like every other transitional stage that our body goes through (puberty and pregnancy), the symptoms associated with perimenopause are a result of the changing role of the reproductive system (in this case, the diminishing role). It occurs as we age, as our estrogen levels ...
Synonym(s):. Life-form: Solitary. Size: length 10-26 µm, width 5-10 µm. Resting spore:. Note:. Distinctive features: Haptonema (2.5-4.5 µm long) shorter than flagella, scales of four forms (EM). Similar species: C. pringsheimii. Distribution:. Literature: ...
ASUS H110M2 D3 is a micro-ATX (mATX) motherboard featuring the Intel® H110 chipset and packed with advanced technologies, including 5X Protection II for dependable stability and EZ Flash 3 quick BIOS updates.