The removal of fluids or discharges from the body, such as from a wound, sore, or cavity.
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)
Means or process of supplying water (as for a community) usually including reservoirs, tunnels, and pipelines and often the watershed from which the water is ultimately drawn. (Webster, 3d ed)
A rehabilitation therapy for removal of copious mucus secretion from the lung of patients with diseases such as CHRONIC BRONCHITIS; BRONCHIECTASIS; PULMONARY ABSCESS; or CYSTIC FIBROSIS. The patient's head is placed in a downward incline (so the TRACHEA is inferior to the affected area) for 15- to 20-minute sessions.
Water containing no significant amounts of salts, such as water from RIVERS and LAKES.
A system of artificial or natural drains, generally used for the disposal of liquid wastes.
Accumulation of purulent material in tissues, organs, or circumscribed spaces, usually associated with signs of infection.
The removal of secretions, gas or fluid from hollow or tubular organs or cavities by means of a tube and a device that acts on negative pressure.
Cyst-like space not lined by EPITHELIUM and contained within the PANCREAS. Pancreatic pseudocysts account for most of the cystic collections in the pancreas and are often associated with chronic PANCREATITIS.
Fluids composed mainly of water found within the body.
Plastic tubes used for drainage of air or fluid from the pleural space. Their surgical insertion is called tube thoracostomy.
Financial support of research activities.
Contamination of bodies of water (such as LAKES; RIVERS; SEAS; and GROUNDWATER.)
Any of several processes in which undesirable impurities in water are removed or neutralized; for example, chlorination, filtration, primary treatment, ion exchange, and distillation. It includes treatment of WASTE WATER to provide potable and hygienic water in a controlled or closed environment as well as provision of public drinking water supplies.
A plan for collecting and utilizing data so that desired information can be obtained with sufficient precision or so that an hypothesis can be tested properly.
The moral obligations governing the conduct of research. Used for discussions of research ethics as a general topic.
Devices, usually incorporating unidirectional valves, which are surgically inserted in the sclera to maintain normal intraocular pressure.
Jaundice, the condition with yellowish staining of the skin and mucous membranes, that is due to impaired BILE flow in the BILIARY TRACT, such as INTRAHEPATIC CHOLESTASIS, or EXTRAHEPATIC CHOLESTASIS.
Those individuals engaged in research.
Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water.
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.
Substances or organisms which pollute the water or bodies of water. Use for water pollutants in general or those for which there is no specific heading.
Research carried out by nurses, generally in clinical settings, in the areas of clinical practice, evaluation, nursing education, nursing administration, and methodology.
Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.
A system of organs and tissues that process and transport immune cells and LYMPH.
Radionuclide imaging of the LYMPHATIC SYSTEM.
Veins draining the cerebrum.
Fiberoptic endoscopy designed for duodenal observation and cannulation of VATER'S AMPULLA, in order to visualize the pancreatic and biliary duct system by retrograde injection of contrast media. Endoscopic (Vater) papillotomy (SPHINCTEROTOMY, ENDOSCOPIC) may be performed during this procedure.
Surgical formation of an opening (stoma) into the COMMON BILE DUCT for drainage or for direct communication with a site in the small intestine, primarily the DUODENUM or JEJUNUM.
Suppurative inflammation of the pleural space.
The integration of epidemiologic, sociological, economic, and other analytic sciences in the study of health services. Health services research is usually concerned with relationships between need, demand, supply, use, and outcome of health services. The aim of the research is evaluation, particularly in terms of structure, process, output, and outcome. (From Last, Dictionary of Epidemiology, 2d ed)
The application of discoveries generated by laboratory research and preclinical studies to the development of clinical trials and studies in humans. A second area of translational research concerns enhancing the adoption of best practices.
An accumulation of air or gas in the PLEURAL CAVITY, which may occur spontaneously or as a result of trauma or a pathological process. The gas may also be introduced deliberately during PNEUMOTHORAX, ARTIFICIAL.
An abscess located in the abdominal cavity, i.e., the cavity between the diaphragm above and the pelvis below. (From Dorland, 27th ed)
Tubes inserted to create communication between a cerebral ventricle and the internal jugular vein. Their emplacement permits draining of cerebrospinal fluid for relief of hydrocephalus or other condition leading to fluid accumulation in the ventricles.
Impairment of bile flow due to obstruction in small bile ducts (INTRAHEPATIC CHOLESTASIS) or obstruction in large bile ducts (EXTRAHEPATIC CHOLESTASIS).
Surgical procedure involving the creation of an opening (stoma) into the chest cavity for drainage; used in the treatment of PLEURAL EFFUSION; PNEUMOTHORAX; HEMOTHORAX; and EMPYEMA.
Any surgical procedure performed on the biliary tract.
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.
Inflammation of the biliary ductal system (BILE DUCTS); intrahepatic, extrahepatic, or both.
Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus).
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Surgical creation of an opening in a cerebral ventricle.
Solitary or multiple collections of PUS within the liver as a result of infection by bacteria, protozoa, or other agents.
Presence of fluid in the pleural cavity resulting from excessive transudation or exudation from the pleural surfaces. It is a sign of disease and not a diagnosis in itself.
Research into the cause, transmission, amelioration, elimination, or enhancement of inherited disorders and traits.
The period of care beginning when the patient is removed from surgery and aimed at meeting the patient's psychological and physical needs directly after surgery. (From Dictionary of Health Services Management, 2d ed)
The flow of water in enviromental bodies of water such as rivers, oceans, water supplies, aquariums, etc. It includes currents, tides, and waves.
Elements of limited time intervals, contributing to particular results or situations.
Accumulation of blood in the SUBDURAL SPACE with delayed onset of neurological symptoms. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.
Excessive accumulation of cerebrospinal fluid within the cranium which may be associated with dilation of cerebral ventricles, INTRACRANIAL HYPERTENSION; HEADACHE; lethargy; URINARY INCONTINENCE; and ATAXIA.
Fluid accumulation within the PERICARDIUM. Serous effusions are associated with pericardial diseases. Hemopericardium is associated with trauma. Lipid-containing effusion (chylopericardium) results from leakage of THORACIC DUCT. Severe cases can lead to CARDIAC TAMPONADE.
The transference of a pancreas from one human or animal to another.
The largest lymphatic vessel that passes through the chest and drains into the SUBCLAVIAN VEIN.
Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).
The withholding of water in a structured experimental situation.
Manometric pressure of the CEREBROSPINAL FLUID as measured by lumbar, cerebroventricular, or cisternal puncture. Within the cranial cavity it is called INTRACRANIAL PRESSURE.
Surgical creation of an opening (stoma) in the URINARY BLADDER for drainage.
Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.
Procedures of applying ENDOSCOPES for disease diagnosis and treatment. Endoscopy involves passing an optical instrument through a small incision in the skin i.e., percutaneous; or through a natural orifice and along natural body pathways such as the digestive tract; and/or through an incision in the wall of a tubular structure or organ, i.e. transluminal, to examine or perform surgery on the interior parts of the body.
Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.
Tumors or cancer of the BILE DUCTS.
Surgical formation of an opening through the ABDOMINAL WALL into the JEJUNUM, usually for enteral hyperalimentation.
A severe form of acute INFLAMMATION of the PANCREAS characterized by one or more areas of NECROSIS in the pancreas with varying degree of involvement of the surrounding tissues or organ systems. Massive pancreatic necrosis may lead to DIABETES MELLITUS, and malabsorption.
Research carried out by nurses in the clinical setting and designed to provide information that will help improve patient care. Other professional staff may also participate in the research.
Surgical anastomosis of the pancreatic duct, or the divided end of the transected pancreas, with the jejunum. (Dorland, 28th ed)
Abnormal passage in any organ of the biliary tract or between biliary organs and other organs.
Puncture and aspiration of fluid from the PERICARDIUM.
Edema due to obstruction of lymph vessels or disorders of the lymph nodes.
Congenital, inherited, or acquired abnormalities involving ARTERIES; VEINS; or venous sinuses in the BRAIN; SPINAL CORD; and MENINGES.
An imaging test of the BILIARY TRACT in which a contrast dye (RADIOPAQUE MEDIA) is injected into the BILE DUCT and x-ray pictures are taken.
Passages within the liver for the conveyance of bile. Includes right and left hepatic ducts even though these may join outside the liver to form the common hepatic duct.
Pathological processes of the PANCREAS.
The channels that collect and transport the bile secretion from the BILE CANALICULI, the smallest branch of the BILIARY TRACT in the LIVER, through the bile ductules, the bile ducts out the liver, and to the GALLBLADDER for storage.
Cystic mass containing lymph from diseased lymphatic channels or following surgical trauma or other injury.
The study of laws, theories, and hypotheses through a systematic examination of pertinent facts and their interpretation in the field of dentistry. (From Jablonski, Illustrated Dictionary of Dentistry, 1982, p674)
The interstitial fluid that is in the LYMPHATIC SYSTEM.
The consumption of liquids.
Presence of pus in a hollow organ or body cavity.
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 interruption or removal of any part of the vagus (10th cranial) nerve. Vagotomy may be performed for research or for therapeutic purposes.
Endoscopic examination, therapy or surgery of the digestive tract.
A watery fluid that is continuously produced in the CHOROID PLEXUS and circulates around the surface of the BRAIN; SPINAL CORD; and in the CEREBRAL VENTRICLES.
The largest bile duct. It is formed by the junction of the CYSTIC DUCT and the COMMON HEPATIC DUCT.
The removal of foreign material and devitalized or contaminated tissue from or adjacent to a traumatic or infected lesion until surrounding healthy tissue is exposed. (Dorland, 27th ed)
Single or multiple areas of PUS due to bacterial infection within the hepatic parenchyma. It can be caused by a variety of BACTERIA, local or disseminated from infections elsewhere such as in APPENDICITIS; CHOLECYSTITIS; PERITONITIS; and after LIVER TRANSPLANTATION.
The presence of chyle in the thoracic cavity. (Dorland, 27th ed)
Collaborative process of research involving researchers and community representatives.
Tumor-like sterile accumulation of serum in a tissue, organ, or cavity. It results from a tissue insult and is the product of tissue inflammation. It most commonly occurs following MASTECTOMY.
Diseases in any part of the BILIARY TRACT including the BILE DUCTS and the GALLBLADDER.
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.
INFLAMMATION of the PANCREAS. Pancreatitis is classified as acute unless there are computed tomographic or endoscopic retrograde cholangiopancreatographic findings of CHRONIC PANCREATITIS (International Symposium on Acute Pancreatitis, Atlanta, 1992). The two most common forms of acute pancreatitis are ALCOHOLIC PANCREATITIS and gallstone pancreatitis.
Research that involves the application of the behavioral and social sciences to the study of the actions or reactions of persons or animals in response to external or internal stimuli. (from American Heritage Dictionary, 4th ed)
Surgery performed on the digestive system or its parts.
Any type of research that employs nonnumeric information to explore individual or group characteristics, producing findings not arrived at by statistical procedures or other quantitative means. (Qualitative Inquiry: A Dictionary of Terms Thousand Oaks, CA: Sage Publications, 1997)
Hemorrhage within the pleural cavity.
A pathologic process consisting in the formation of pus.
The washing of a body cavity or surface by flowing water or solution for therapy or diagnosis.
Endoscopic surgery of the pleural cavity performed with visualization via video transmission.
Infection involving the tissues or organs in the PELVIS.
Radiographic study of the lymphatic system following injection of dye or contrast medium.
The dense rock-like part of temporal bone that contains the INNER EAR. Petrous bone is located at the base of the skull. Sometimes it is combined with the MASTOID PROCESS and called petromastoid part of temporal bone.
An abnormal passage or communication leading from an internal organ to the surface of the body.
Abscess of the PSOAS MUSCLES resulting usually from disease of the lumbar vertebrae, with the pus descending into the muscle sheath. The infection is most commonly tuberculous or staphylococcal.
Compression of the heart by accumulated fluid (PERICARDIAL EFFUSION) or blood (HEMOPERICARDIUM) in the PERICARDIUM surrounding the heart. The affected cardiac functions and CARDIAC OUTPUT can range from minimal to total hemodynamic collapse.
The production of adhesions between the parietal and visceral pleura. The procedure is used in the treatment of bronchopleural fistulas, malignant pleural effusions, and pneumothorax and often involves instillation of chemicals or other agents into the pleural space causing, in effect, a pleuritis that seals the air leak. (From Fishman, Pulmonary Diseases, 2d ed, p2233 & Dorland, 27th ed)
Ducts that collect PANCREATIC JUICE from the PANCREAS and supply it to the DUODENUM.
A flexible, tubular device that is used to carry fluids into or from a blood vessel, hollow organ, or body cavity.
Ultrasonography of internal organs using an ultrasound transducer sometimes mounted on a fiberoptic endoscope. In endosonography the transducer converts electronic signals into acoustic pulses or continuous waves and acts also as a receiver to detect reflected pulses from within the organ. An audiovisual-electronic interface converts the detected or processed echo signals, which pass through the electronics of the instrument, into a form that the technologist can evaluate. The procedure should not be confused with ENDOSCOPY which employs a special instrument called an endoscope. The "endo-" of endosonography refers to the examination of tissue within hollow organs, with reference to the usual ultrasonography procedure which is performed externally or transcutaneously.
Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect.
Predominantly extrahepatic bile duct which is formed by the junction of the right and left hepatic ducts, which are predominantly intrahepatic, and, in turn, joins the cystic duct to form the common bile duct.
Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed)
Tubular vessels that are involved in the transport of LYMPH and LYMPHOCYTES.
Adenocarcinoma of the common hepatic duct bifurcation. These tumors are generally small, sharply localized, and seldom metastasizing. G. Klatskin's original review of 13 cases was published in 1965. Once thought to be relatively uncommon, tumors of the bifurcation of the bile duct now appear to comprise more than one-half of all bile duct cancers. (From Holland et al., Cancer Medicine, 3d ed, p1457)
Severe or complete loss of motor function in the lower extremities and lower portions of the trunk. This condition is most often associated with SPINAL CORD DISEASES, although BRAIN DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; NEUROMUSCULAR DISEASES; and MUSCULAR DISEASES may also cause bilateral leg weakness.
Tapping fluid from the subarachnoid space in the lumbar region, usually between the third and fourth lumbar vertebrae.
An emulsifying agent produced in the LIVER and secreted into the DUODENUM. Its composition includes BILE ACIDS AND SALTS; CHOLESTEROL; and ELECTROLYTES. It aids DIGESTION of fats in the duodenum.
The use of humans as investigational subjects.
Liver disease caused by infections with parasitic tapeworms of the genus ECHINOCOCCUS, such as Echinococcus granulosus or Echinococcus multilocularis. Ingested Echinococcus ova burrow into the intestinal mucosa. The larval migration to the liver via the PORTAL VEIN leads to watery vesicles (HYDATID CYST).
Surgical removal of the GALLBLADDER.
A malignant tumor arising from the epithelium of the BILE DUCTS.
Surgical creation of a communication between a cerebral ventricle and the peritoneum by means of a plastic tube to permit drainage of cerebrospinal fluid for relief of hydrocephalus. (From Dorland, 28th ed)
Hemorrhage following any surgical procedure. It may be immediate or delayed and is not restricted to the surgical wound.
Circulation of water among various ecological systems, in various states, on, above, and below the surface of the earth.
A Y-shaped surgical anastomosis of any part of the digestive system which includes the small intestine as the eventual drainage site.
The outermost of the three MENINGES, a fibrous membrane of connective tissue that covers the brain and the spinal cord.
Passage of a CATHETER into the URINARY BLADDER or kidney.
An irregularly shaped venous space in the dura mater at either side of the sphenoid bone.
An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.
A collection of watery fluid in the pleural cavity. (Dorland, 27th ed)
A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in the gastrointestinal system, liver, and spleen.
Tear or break of an organ, vessel or other soft part of the body, occurring in the absence of external force.
An operation for retinal detachment which reduces the size of the globe by indenting the sclera so that it approximates the retina.
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.
An opening or hole in the ESOPHAGUS that is caused by TRAUMA, injury, or pathological process.
Surgical incision into the chest wall.
Infection occurring at the site of a surgical incision.
Substances that reduce the growth or reproduction of BACTERIA.
The region of the STOMACH at the junction with the DUODENUM. It is marked by the thickening of circular muscle layers forming the pyloric sphincter to control the opening and closure of the lumen.
A class of porins that allow the passage of WATER and other small molecules across CELL MEMBRANES.
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.
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
An accumulation of purulent material in the space between the PHARYNX and the CERVICAL VERTEBRAE. This usually results from SUPPURATION of retropharyngeal LYMPH NODES in patients with UPPER RESPIRATORY TRACT INFECTIONS, perforation of the pharynx, or head and neck injuries.
The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment.
Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.
Endoscopic examination, therapy or surgery of the pleural cavity.
Diagnostic and therapeutic procedures that are invasive or surgical in nature, and require the expertise of a specially trained radiologist. In general, they are more invasive than diagnostic imaging but less invasive than major surgery. They often involve catheterization, fluoroscopy, or computed tomography. Some examples include percutaneous transhepatic cholangiography, percutaneous transthoracic biopsy, balloon angioplasty, and arterial embolization.
The vessels carrying blood away from the capillary beds.
The period of confinement of a patient to a hospital or other health facility.
Diseases in any part of the ductal system of the BILIARY TRACT from the smallest BILE CANALICULI to the largest COMMON BILE DUCT.
Veins which drain the liver.
The excision of the head of the pancreas and the encircling loop of the duodenum to which it is connected.
The region in the abdomen extending from the thoracic DIAPHRAGM to the plane of the superior pelvic aperture (pelvic inlet). The abdominal cavity contains the PERITONEUM and abdominal VISCERA, as well as the extraperitoneal space which includes the RETROPERITONEAL SPACE.
A circumscribed collection of purulent exudate in the brain, due to bacterial and other infections. The majority are caused by spread of infected material from a focus of suppuration elsewhere in the body, notably the PARANASAL SINUSES, middle ear (see EAR, MIDDLE); HEART (see also ENDOCARDITIS, BACTERIAL), and LUNG. Penetrating CRANIOCEREBRAL TRAUMA and NEUROSURGICAL PROCEDURES may also be associated with this condition. Clinical manifestations include HEADACHE; SEIZURES; focal neurologic deficits; and alterations of consciousness. (Adams et al., Principles of Neurology, 6th ed, pp712-6)
Interference with the secretion of tears by the lacrimal glands. Obstruction of the LACRIMAL SAC or NASOLACRIMAL DUCT causing acute or chronic inflammation of the lacrimal sac (DACRYOCYSTITIS). It is caused also in infants by failure of the nasolacrimal duct to open into the inferior meatus and occurs about the third week of life. In adults occlusion may occur spontaneously or after injury or nasal disease. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p250)
The balance of fluid in the BODY FLUID COMPARTMENTS; total BODY WATER; BLOOD VOLUME; EXTRACELLULAR SPACE; INTRACELLULAR SPACE, maintained by processes in the body that regulate the intake and excretion of WATER and ELECTROLYTES, particularly SODIUM and POTASSIUM.
Any operation on the cranium or incision into the cranium. (Dorland, 28th ed)
Gastrointestinal symptoms resulting from an absent or nonfunctioning pylorus.
Impairment of bile flow in the large BILE DUCTS by mechanical obstruction or stricture due to benign or malignant processes.
Time period from 1901 through 2000 of the common era.
Methods of creating machines and devices.
Incision of Oddi's sphincter or Vater's ampulla performed by inserting a sphincterotome through an endoscope (DUODENOSCOPE) often following retrograde cholangiography (CHOLANGIOPANCREATOGRAPHY, ENDOSCOPIC RETROGRADE). Endoscopic treatment by sphincterotomy is the preferred method of treatment for patients with retained or recurrent bile duct stones post-cholecystectomy, and for poor-surgical-risk patients that have the gallbladder still present.
The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
Reduced blood flow to the spinal cord which is supplied by the anterior spinal artery and the paired posterior spinal arteries. This condition may be associated with ARTERIOSCLEROSIS, trauma, emboli, diseases of the aorta, and other disorders. Prolonged ischemia may lead to INFARCTION of spinal cord tissue.
Abnormal passage communicating with the PANCREAS.
An abnormal direct communication between an artery and a vein without passing through the CAPILLARIES. An A-V fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. The locations and size of the shunts determine the degree of effects on the cardiovascular functions such as BLOOD PRESSURE and HEART RATE.
Organizations representing specialized fields which are accepted as authoritative; may be non-governmental, university or an independent research organization, e.g., National Academy of Sciences, Brookings Institution, etc.
Voluntary authorization, by a patient or research subject, with full comprehension of the risks involved, for diagnostic or investigative procedures, and for medical and surgical treatment.
Accumulation of purulent EXUDATES beneath the DIAPHRAGM, also known as upper abdominal abscess. It is usually associated with PERITONITIS or postoperative infections.
Incision of tissues for injection of medication or for other diagnostic or therapeutic procedures. Punctures of the skin, for example may be used for diagnostic drainage; of blood vessels for diagnostic imaging procedures.
Excision of all or part of the liver. (Dorland, 28th ed)
... irrigation and drainage; Education and water supply and waste management as well as research and consultancy. CIVIL ENGINEERING ... Personnel Research& information systems, Compensation/benefits, Union Labour relations etc., which will result in Quality work ... academic staff whose specialties include soil and water engineering, soil science, processing and storage engineering as well ... produce good civil engineering drainage and schedules; supervise civil engineering projects; carry out necessary tests on civil ...
June 2008). "The Lincolnshire Coastal Grazing Marshes Project - Water Level Management Study" (PDF). Lindsey Marsh Drainage ... Marsh, Terry; Hannaford, Jamie (2008). UK Hydrometric Register (PDF). Natural Environment Research Council. ISBN 978-0-9557672- ... Thorpe Culvert takes its name from a culvert which was built under the river to drain water into the Bell Water Drain. The area ... It is no longer connected to the Steeping River, but is maintained as a drainage ditch by the Internal Drainage Board (IDB). ...
Water Research. 44 (8): 2487-98. doi:10.1016/j.watres.2010.01.022. PMID 20185157. Alex Maestre, Robert Pitt, and Derek ... Urban Drainage, Lausanne, Switzerland: 40-46. Fan, Chi-Yuan; Field, Richard; Lai, Fu-hsiung (2003). Sewer-Sediment Control: ... Water Research. 30 (5): 1244-1252. doi:10.1016/0043-1354(95)00282-0. ISSN 0043-1354. Geiger, W. (1987). "Flushing Effects in ... Recent research has shown that this effect has not been observed in relatively pervious areas. The term is often also used to ...
ISBN 0-470-84357-8. Singh, R.Y. (2005). "Interface drainage analysis of a water divide". In Jansky, Libor; Haigh, Martin J.; ... Journal of Geophysical Research. 107 (C9): 3131. Bibcode:2002JGRC..107.3131C. doi:10.1029/2001jc001082. Fisk, H.N., 1944. ... A mass of water descending must give up potential energy, which, given the same velocity at the end of the drop as at the ... Erosion that forms a cut bank occurs at the outside bank of a meander because helicoidal flow of water keeps the bank washed ...
There are many types of water treatment systems available for removing metals from acid mine drainage. Passive treatment ... Research indicates that these systems can be expected to perform for 20 years. The precipitate is not normally a hazardous ... The type of system selected is dependent upon the chemistry of the acid mine drainage and the flow of the discharge, as well as ... Robert S. Hedin; Robert W. Nairn & Robert L. P. Kleinman (1994). "Passive treatment of coal mine drainage" (PDF). U. S. Bureau ...
The landscape design phase consists of research, gathering ideas, and setting a plan. Design factors include objective ... sports and water); furnishings and lighting; native plant habitat botany when present; property safety and security; ... qualities such as: climate and microclimates; topography and orientation, site drainage and groundwater recharge; municipal and ...
Types of work this program funds include: removing debris; reshaping and protecting eroded banks; correcting damaged drainage ... Emergency Wetlands Reserve Program This article incorporates public domain material from the Congressional Research Service ... facilities; repairing levees and other water conveyance structures; and purchasing flood plain easements. For construction ...
Resolution VII : Scientific water management: irrigation, drainage and flood control. Resolution VIII : Women and food. ... Research has identified that the number of people across the world who are chronically malnourished has decreased by 167 ... Resolution III : Fertilizers Resolution IV : Food and agricultural research, extension and training. Resolution V : Policies ...
Jeffrey John Dilnot, Land Drainage Foreman, Kent River and Water Division, Southern Water Authority. George David Dixon, Chief ... For services to Medical Research. William John Charnley, C.B., Controller, Research and Development Establishments and Research ... Derek Rudd-Jones, Director, Glasshouse Crops Research Institute, Agricultural Research Council. Harry Kay, Vice-Chancellor, ... Deric Daniel Waters, Assistant Director of Education, Hong Kong. Mang-ki Wong, Principal Government Engineer, Public Works ...
... the drainage of swamps. Further researches showed, however, that the amount of water would still be neither sufficient nor ... Bydgoszcz canal is supplied with water from two main sources: the Kanał Górnonotecki, providing water from the upper areas of ... creating a water cushion on the upstream; towpaths on both sides, used by haulers; a weir to drain excess water at Śluza ... development of water transport had always been limited by a shortage of the volume of water. Improvement occurred in 1878-1882 ...
Water politics Drainage law "Appendix H. Groundwater Law and Regulated Riparianism" (PDF). Final Report: Restoring Great Lakes ... Institute of Water Research, Michigan State University. 2007. Archived from the original (PDF) on 2011-07-20.. ... The preference for water uses on the land makes it difficult to market the water or water rights. The third system involving ... Water is a rechargeable resource and so the amount of the water right may be reduced, marketing the groundwater right can be ...
He also established a stone type press called "Nava Vidhya Kalanidhi Varnayanthra Sala". Serfoji constructed ten water tanks ... He implemented an underground drainage system for the whole of Thanjavur city. Serfoji established the Dhanavantari Mahal, a ... Here, physicians of modern medicine, ayurveda, unani and siddha schools have performed research upon drugs and herbs for ... research institution that produced herbal (indigenous medicine) medicine for humans and animals. The institution also treated ...
Water Resources Research. 43 (7): W07433. Bibcode:2007WRR....43.7433W. doi:10.1029/2006wr005289. ISSN 0043-1397. Brush, Lucien ... Ultimately these forces are determined by the amount of precipitation, the drainage density, relief ratio and sediment parent ... Gravity acts upon water to move it down slope. Friction exerted on the water by the bed and banks of the channel works to slow ... Water is allowed to flow above the particle but not below resulting in a zero and non-zero velocity at the bottom and top of ...
The report, based on research conducted by consultants hired by the company, claimed that Keele Valley was the most suitable ... Fleming, Ian; Rowe, D. (2004). "Laboratory studies of clogging of landfill leachate collection and drainage systems" (PDF). ... "Technical Support Document for Ontario Drinking Water Standards, Objectives and Guidelines". Ministry of the Environment, ... Dexter, Brian (14 July 1994). "Dump study attacked for skimpy research". Toronto Star. p. NY.8. Retrieved 2010-03-29. Dexter, ...
Tóth, József (1963). "A theoretical analysis of groundwater flow in small drainage basins". Journal of Geophysical Research. 68 ... Ground Water, 2002, v.40 no. 3, pp. 320-324 Hubbert, M. King (1940). "The Theory of Ground-Water Motion". The Journal of ... Although he was employed as a geophysicist at the Research Council of Alberta, he soon had to work as a groundwater consultant ... Working from M.K. Hubbert's 1940 paper "The theory of ground-water motion" Tóth solved the Laplace equation for a "unit basin" ...
Modelling Report: Climate change impacts on water resources in the Pungwe drainage basin. SMHI Report 2006-41, Norrköping, 92 ... Water Resources Research. 50 (10): 7541-7562. doi:10.1002/2014wr015549. ISSN 0043-1397. Lidén, R. and Harlin, J. 2000. Analysis ... Water Resources Research. 54 (1): 538-556. doi:10.1002/2017wr021648. ISSN 0043-1397. Teutschbein, C.; Sponseller, R. A.; Grabs ... Water SA, 27, 303-315.[12][permanent dead link] The HBV model at the Swedish Department of Climate (SMHI) HBV light at the ...
Water Research. 85: 377-383. doi:10.1016/j.watres.2015.08.060. PMID 26360231. Mitsch, J.W., Gosselink, J.G. (1986): Wetlands. ... Hedin, R.S., Nairn, R.W.; Kleinmann, R.L.P. (1994): Passive treatment of coal mine drainage. Information Circular (Pittsburgh, ... A constructed wetland is an engineered sequence of water bodies designed to wastewater or storm water runoff. Vegetation in a ... from the water. Constructed wetlands are designed to remove water pollutants such as suspended solids, organic matter and ...
CIDCO had appointed Pune based Central Water and Power Research Station (CWPRS) in 2011 to study the hydrological impact of the ... "Prepare master plan for surface drainage system at Navi Mumbai International Airport: CIDCO". The Indian Express. 20 July 2018 ... Central Water and Power Research Station. Retrieved 18 July 2019. "Navi Mumbai airport: CIDCO finishes Ulwe river diversion". ... The site had several environmental problems in dealing with mangroves and rain/storm water drains in Panvel. There is an NGO ...
In cultivation, it prefers full sun, loose soil, good drainage, and regular watering. The plant also contains essential oil. [ ... Growing Wild in Kashmir, India, Journal of Essential Oil Research, 23:4, 21-25] Clebsch, Betsy; Barner, Carol D. (2003). The ...
Research Notes)". Borneo Research Council. The Free Library. 1999. Retrieved 24 July 2019. The Sugut (approximately 178 km long ... CS1 maint: discouraged parameter (link) Felix Tongkul (2015). "Status of Mount Kinabalu Water Catchments after the June 2015 ... Department of Irrigation and Drainage, Malaysia. 2018: 26. Archived from the original (PDF) on 24 May 2019. Retrieved 24 July ... Department of Irrigation and Drainage, Malaysia. 2003. p. 34. Retrieved 24 July 2019. ...
Singh, R.Y. (2005). "Interface drainage analysis of a water divide". In Jansky, Libor; Haigh, Martin J.; Prasad, Hushila (eds ... "Journal of Geophysical Research. 107. Bibcode:2002JGRC..107.3131C. doi:10.1029/2001jc001082.. ... Forms by Flowing Water (Fluvial Features). In Landforms of the World with Google Earth. (pp. 183-244). Springer, Amsterdam, ... Water Resources Publications. pp. 261-265. ISBN 0-918334-56-X. .. *^ Lewalle, Jacques (2006). "Flow Separation and Secondary ...
If cultured, perfect drainage is required for survival. The use of broken or crushed rock mixed with humus will keep the plant ... The plant will not die of thirst because the leathery leaves and roots will store enough water. This plant has gained the Royal ... "Lewisiopsis tweedyi". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States ...
... water pressure, and remote-operated vehicles. Lilypad Lab focuses on drainage basin and Central Ohio wildlife. The path forking ... The pathway to the right leads to a docked submarine laboratory where hands-on exhibits explore the realities of ocean research ... and water jets. This second realm focuses not on the study of water but on the properties of water and the stories it inspires ... Life also contains the Labs in Life, three working medical research pods staffed by OSU Health & Medicine students and staff. ...
Water Resources Research 47: W02534. Ferson, S., and L.R. Ginzburg (1996). Different methods are needed to propagate ignorance ... Fu, G., D. Butler, S.-T. Khu, and S. Sun (2011). Imprecise probabilistic evaluation of sewer flooding in urban drainage systems ... Operations Research 43: 807-825. Zhang, J. and D. Berleant (2005). Arithmetic on random variables: squeezing the envelopes with ... Rozell, Daniel J., and Sheldon J. Reaven (2012). Water pollution risk associated with natural gas extraction from the Marcellus ...
Use water with a label specifying that it contains distilled or sterile water. Disinfect: Learn how to disinfect your water to ... In 2020, research has also shown nasal irrigation can be beneficial to preventing the viral load of COVID-19. Adverse effects ... include nasal irritation, nosebleeds, headache, and drainage after the irrigation is done. It is generally well tolerated. ... The water should not be tap water, which may contain small amounts of bacteria that are safe to drink but may be dangerous in ...
This included four water diversion tunnels, two auxiliary tunnels, and one construction drainage tunnel. The China Jinping ... This institution specializes in the research of dark matter as the location deep below the surface of the earth shields the ... The Jinping-II Dam, a little further downstream, diverts the water of the Yalong River nearly 17 km (11 mi) under the Jinping ...
Its drainage basin covers about 7,358 km2 (2,841 sq mi). Situated in an extremely arid region, the river is heavily dependent ... The river is an important source of irrigation water and also supplies historically important oases along its course. ... Bulletin of Glacial Research. Japanese Society on Snow and Ice. Archived from the original (PDF) on 2016-03-04. Retrieved 2011- ... when the climate in the area was wetter and much less water was being used by human activities. Karakash River Khotan River ...
"Holocaust Research Project: Sawin". 2012-06-24. Coordinates: 51°16′N 23°26′E / 51.267°N 23.433°E / 51.267; 23.433 v t e. ... They built drainage ditches and later were sent to extermination camps. Sawin's labor camp was closed on December 9, 1943, ... Sawin was the site of a Jewish forced labor camp established by the Germans for the purpose of improving water for the area. ...
Development of Technical and Financial Norms and Standards for Drainage of Irrigated Lands. South African Water Research ... Such calculations are necessary to design a drainage system in the framework of an irrigation system for water table and soil ... Well drainage Rares HALBAC-COTOARA-ZAMFIR, 2010, Calculation of distance between drains using EnDrain program. Research Journal ... Subsurface-Water Hydrology, p. 153-160, Vol.2 of Proceedings of the International Conference on Hydrology and Water Resources, ...
Since the Sampson family took over the Zoo, the team at PWP have continued researching, expanding and improving upon the ... The indoor exhibit also holds False Water Cobra, Beaded Lizards, Plica-Plica and Piranha. This area launched their charity ... There has been extensive work completed on the paddock areas to improve drainage; overflow car parking facilities have been ... which specialises in research and breeding of endangered species.[citation needed] Continued work and investment to improve the ...
Water is a critical resource, yet little is currently known about the actual amount of groundwater available, let alone how the ... surface and atmospheric water. Such information can provide data on water resources at the basin-scale, information that is not ... Water is a critical resource, yet little is currently known about the actual amount of groundwater available, let alone how the ... To date, the capability of the GRACE mission has not been utilised to study the temporal variations in water resources in ...
Paper presented at 2nd International Conference on Urban Storm Drainage, Illinois, United States.. Research output: ... Urban storm drainage and water pollution. Paper presented at 2nd International Conference on Urban Storm Drainage, Illinois, ... Urban storm drainage and water pollution. Paper presented at 2nd International Conference on Urban Storm Drainage, Illinois, ... Urban storm drainage and water pollution, Paper presented at 2nd International Conference on Urban Storm Drainage, Illinois, ...
Water Resources Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic ... Water Resources Research, 25(8), 1907-1918.. MLA. Montgomery, David R., and William E. Dietrich. "Source areas, drainage ... personal research library. Its your single place to instantly. discover and read the research that matters to you. ... Source areas, drainage density, and channel initiation. Source areas, drainage density, and channel initiation Montgomery, ...
Research Article,October 01 2003 Naturalization of Drainage Channels in Lithuania and Possibilities of Their Maintenance as ... Naturalization of Drainage Channels in Lithuania and Possibilities of Their Maintenance as Water Recipients: Paper presented at ... induced self-purification of water etc. Thus the re-naturalization of drainage channels is essential. Consequently, to ... Response of soil water hydrochemistry and δ13CDIC to changes in spatio-temporal variations under different land covers in SW ...
... focussing on mixing fresh irrigation water with drainage water under controlled conditions to improve the total volume of ... mixing good quality feeder water with agricultural drainage water to satisfy water demand. The feeder is covered with water ... Nile Delta Nile Basin Egypt North Africa MENA water management water scarcity water resources Water treatment agriculture ... Increasing Water Efficiency through Agricultural Drainage Water Reuse in the Nile Delta, Egypt. Latitude. 30.96359. Longitude. ...
... independent research organization dedicated to informed public policy making and the effective use of public resources for the ... Bureau of Governmental Research is a private, non-profit, ... Water Board asks firm to research new fee to fund drainage ... Sewerage & Water Board asks firm to research new fee to fund drainage projects. By Charles Maldonado, The Lens. May 8, 2013 ... Raftelis has been researching such a fee for a few years. In 2011 the firm proposed a new drainage fee, which would have ...
China Water Supply, Drainage and Water Treatment Show. Exhibition , All day Apr 13 - 15, 2011. National Agriculture Exhibition ... It leads the modernest technology of water treatment. Website: Got the tickets. Venue: National Agriculture ...
The water is thought to have entered the crevasses, but whether the water reached the bed or refroze within the ice sheet is ... The water is thought to have entered the crevasses, but whether the water reached the bed or refroze within the ice sheet is ... whereupon it receives water at rates corresponding to the water flux through the aquifer. Our model shows that crevasses ... whereupon it receives water at rates corresponding to the water flux through the aquifer. Our model shows that crevasses ...
Cravotta is a research hydrologist whose projects focus on geochemical and hydrological processes that control water quality, ... Mine Drainage and Water Quality Research PaWSC conducts research on geochemical and hydrological processes that control water ... Attribution: Environmental Health, Minerals, Water, New England Water Science Center, Pennsylvania Water Science Center, Water ... Attribution: Water, Pennsylvania Water Science Center, Water Resources, , Region 1: North Atlantic-Appalachian, United States ...
plans to test water from a drainage ditch near the site of a 210,000-gallon oil spill from the Keystone pipeline ... Noble Research researchers receive OCAST grants. August 7, 2020 * Rural broadband projects receive funding. August 7, 2020 ... Home / briefs / TransCanada to test water in drainage ditch near spill. TransCanada to test water in drainage ditch near spill ... plans to test water from a drainage ditch near the site of a 210,000-gallon oil spill from the Keystone pipeline to determine ...
... scientific and university practitioners to present research activities that might want to attend events, meetings, seminars, ... Model Application for Sustainable Agricultural Water and Drainage scheduled on February 10-11, 2020 in February 2020 in ... ICMASAWD 2020 has teamed up with the Special Journal Issue on Model Application for Sustainable Agricultural Water and Drainage ... Model Application for Sustainable Agricultural Water and Drainage. ICMASAWD 2020: 14. International Conference on Model ...
... scientific and university practitioners to present research activities that might want to attend events, meetings, seminars, ... Model Application for Sustainable Agricultural Water and Drainage Conference scheduled on April 05-06, 2021 in April 2021 in ... ICMASAWD 2021 has teamed up with the Special Journal Issue on Model Application for Sustainable Agricultural Water and Drainage ... Model Application for Sustainable Agricultural Water and Drainage. ICMASAWD 2021: 15. International Conference on Model ...
Mine Water and Environment Research Centre (based in Australia) Overview of acid mine drainage impacts in the West Rand ... Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from ... Organisms which cause acid mine drainage can thrive in waters with pH very close to zero. Negative pH occurs when water ... Partnership for Acid Drainage Remediation in Europe The Science of Acid Mine Drainage and Passive Treatment USGS Mine Drainage ...
waste_water.html.en - waste_water.html.en. Urban water management. The Integrated urban Water Research Group aims to be at the ... Urban drainage and wastewater treatment. Cool-INN: Kühle urbane Lebensräume für eine resliliente Gesellschaft ... Selected Research Projects. Water supply networks and water resources. Increasing the resilience of urban water systems through ... Urban Water Research incorporates projects focussing on the interaction between various elements of the urban water cycle, in- ...
Drainage Density, and Channel Initiation". Water Resources Research. 25 (8): 1907-1918. Strahler, Arthur N. (December 1957). " ... influence the drainage density and evolution of a drainage basin. Drainage density is tied to the water balance equation: d V d ... Drainage density relates to the storage and runoff terms. Drainage density relates to the efficiency by which water is carried ... Drainage density depends upon both climate and physical characteristics of the drainage basin. High drainage densities also ...
Hooda, P. S., Moynagh, M. and Svoboda, I. F. (1996) A comparison of phosphate losses in drainage water from two different ... Research Area:. Agriculture, veterinary and food science. Geography and environmental studies. Faculty, School or Research ... A comparison of phosphate losses in drainage water from two different grassland systems ...
Genesis Flood Drainage Through Southwest Montana: Part III: Water Gaps. May 30, 2018 Michael J. Oard Creation Research Society ... Decades of early research on the genetics of depression were built on nonexistent foundations. How did that happen? ... Neanderthals and modern humans diverged at least 800,000 years ago, research on teeth shows. May 15, 2019 University College ... Scientists have discovered how genes create proteins in research which could aid the development of treatments for human ...
Drainage and amount of water.. *The number of animals grazing in the pasture. ... Mature horses need 8% to 12% protein in their diet.[9] X Research source [10] X Trustworthy Source University of Georgia ... As a rule of thumb, you should have at least one acre (4,047 square meters) of pasture per horse.[4] X Research source ... Creating shelters like a "lean to" so your horses will have cover from the elements.[1] X Research source ...
But mostly, its water, cement, and gravel. But researchers at the University of Michigan are tapping into a new resource for ... Hughes points out that this acid mine drainage was an ideal sample for research because it has a significantly higher ... But mostly, its water, cement, and gravel. But researchers at the University of Michigan are tapping into a new resource for ... Power To Save: Acid Mine Drainage to Concrete?. Posted 5:00 pm, April 20, 2017, by Clay LePard, Updated at 05:01PM, April 20, ...
... structural and water quality advice. [S Wilson; R Bray; P Cooper; Construction Industry Research and Information Association.] ... Sustainable drainage systems : hydraulic, structural and water quality advice. Author:. S Wilson; R Bray; P Cooper; ... Sustainable drainage systems : hydraulic, structural and water quality advice/S Wilson; R Bray; P Cooper; Construction Industry ... schema:name "Sustainable drainage systems : hydraulic, structural and water quality advice"@en ;. schema:productID "55729173" ; ...
Drainage -- Florida , Wekiwa River Watershed Language eng. Related * Drainage and water control program for the Wekiwa Basin, ... The item An engineering report on a drainage and water control program for the Wekiwa Basin, Orange County, Florida, A.P. & R.K ... An engineering report on a drainage and water control program for the Wekiwa Basin, Orange County, Florida. Title An ... Data Citation of the Item An engineering report on a drainage and water control program for the Wekiwa Basin, Orange County, ...
Find out more about Lancaster Universitys research activities, view details of publications, outputs and awards and make ... The effect of drainage on nutrient release from fen peat and its implications for water quality: a laboratory simulation. ... The effect of drainage on nutrient release from fen peat and its implications for water quality-a laboratory simulation 24 ... Home , Research. , Publications & Outputs , The effect of drainage on nutrient release from... ...
Water Supply and Drainage for Buildings: CIB-W62 Seminar. Copenhagen, 12-15 May 1986. Byggeforskningsinstitut, S., 1986, ... Møller, J., 1985, (Research Report; No. 138).. Research output: Book/Report › Report › Research ... Laurberg, P., Apr 1986, In: Hormone and Metabolic Research. 18, 4, p. 230-3 4 p.. Research output: Contribution to journal › ... Laurberg, P., Dec 1985, In: Hormone and Metabolic Research. 17, 12, p. 650-4 5 p.. Research output: Contribution to journal › ...
Feeding our crops and protecting our water with bioreactors and controlled drainage Published on May 7, 2015 Bioreactors and ... Nutrient management update and tour features innovative field crop research Published on June 3, 2015 MSU Nutrient Management ... Good enough drainage Published on May 1, 2017 Scrimp on that next drainage project to save money and protect our lakes and ... controlled drainage expand options for feeding our crops and protecting our water. ...
Conventional design standards for urban drainage systems are not set to deal with extreme rainfall events. As these events are ... As part of the ongoing research collaboration with the City of Rotterdam, a drainage system was selected as a way to test the ... By this intervention, water is no longer running into the (minor) drainage system, but directly to the open water system that ... Disconnection from the drainage system. This can be done in the areas near to open water bodies, such as canals. ...
NPWRC research indicates that relative to wetlands in undrained landscapes, wetlands that receive consolidation drainage water ... recently completed a project aimed at understanding the impacts of wetland drainage on wetlands that receive drainage water. ... Interactions of consolidation drainage and climate on water-level dynamics, wetland productivity, and waterbirds. ... Northern Prairie Wildlife Research Center. Email: [email protected] Phone: 701-253-5507. Explore More Science. *Management and ...
As well, research is focused on, but not limited to, the following fields: environmental hydraulics, water supply ... the remediation of groundwater systems and drainage and irrigation systems. ... Aligning well with the rest of the School of Engineering and the University of Guelphs research expertise, the Water Resources ... Development of Modelling Tools for Source Water Quality Protection. *Prediction of Climate Change Effects on Water Quantity & ...
The board of commissioners may construct, renovate, improve, enlarge and extend the drainage systems and water-retardant ... Drainage bonds received as deposits. The State Treasurer is authorized to receive drainage bonds issued by drainage districts ... If there shall be more than one drainage district in a drainage basin, or watershed, the board of drainage commissioners of any ... Drainage record. The clerk of the superior court shall provide a suitable book, to be known as the Drainage Record, in which ...
Journal of Agricultural Engineering Research, 73, 123-129.CrossRefGoogle Scholar. *. Kanwar, R. S., Cruse, R., Ghaffarzadeh, M ... 1999). Water quality in Walnut Creek watershed: Nitrate-nitrogen in soils, subsurface drainage water, and shallow groundwater. ... Spatial clusters of subsurface drainage water NO3-N leaching losses. Journal of the American Water Resources Association, 41, ... These results suggest that spring applied manure has potential to reduce NO3-N concentrations in subsurface drainage water and ...
On the drainage density of tidal networks. Water Resources Research 39. ... Marsh Ecology Research Program (MERP), Sea Grant, and the Netherlands Organization for Scientific Research and end-user ... 1.Monterey Bay Aquarium Research InstituteMoss LandingUSA. *2.College of Sciences and MathematicsMontclair State University ... Homing and daytime tidal movements of juvenile snappers (Lutjanidae) between shallow-water nursery habitats in Zanzibar, ...
  • GRACE can generate estimates of mass variations which can be interpreted as the sum of ground water, soil moisture, surface and atmospheric water. (
  • However, a leading soil scientist specializing in prairie water problems thinks the drainage systems are probably a good thing. (
  • MSU Nutrient Management Update and Plot Tour on Sept. 9, 2015, will showcase applied agronomic research on soil fertility and plant nutrition. (
  • Irrigation water will be pumped back into the tile of zones two and three to provide water for the corn crop based on weather data, rain gauge data, and soil moisture sensors. (
  • The project will demonstrate ongoing collaboration with several partners, including the Wilkin Soil and Water Conservation District (SWCD) and Minnesota Department of Agriculture (MDA) on monitoring impacts and effectiveness of the system. (
  • J. Soil and Water Conserv. (
  • Select soil with naturally good drainage. (
  • If you have clay-based soil or another type with poor drainage, replace it with a looser topsoil. (
  • If it takes more than a few hours for the water to drain out of the hole, then your soil has poor drainage. (
  • Chapter 2 gives a thorough review of the properties of soil in the context of drainage design. (
  • The extensive mathematical theories which relate to the crucial area of soil water movement are outlined and due attention is paid to the growing importance of predicting soil water movement in partially saturated soils. (
  • To improve water permeability, drainage trenches were backfilled with soil mixed with 0.6% CaO. (
  • ABSTRACT: This project defined changes in soil properties after construction of subsurface tile drainage. (
  • We compared the physical and chemical properties of soil samples taken before construction of drainage and new soil samples taken from identical sites at present. (
  • We can assume that after drainage Stagnosols are susceptible to soil compaction, especially in topsoil. (
  • Scientists with ORD's National Exposure Research Laboratory/Water Supply and Water Resources Division worked with communities in eight EPA regions to evaluate impacts such as water quality changes, hydrologic response and soil infiltration. (
  • By their burrowing activity, earthworms mix and aggregate soil and minimize surface water erosion by enhancing soil macroporosity [i.e., opening crevices to allow rainwater to drain into soil] and water-holding capacity. (
  • The aim was to limit the emissions of CO2 (less soil steaming, more energy-efficient cultivation), nutrients (recirculation of drainage water with closed water loops) and pesticides (hygienic cultivation). (
  • The Soil and Water Management Research Group conducts academic, research and extension programs in agricultural water management. (
  • The primary focus is on poorly drained, high water table soils with specific application to the Coastal Plains of North Carolina The purpose of the Soil and Water Lab is to assist the faculty, staff and graduate students with lab and field measurements of certain soil and water properties. (
  • Huge amounts of tile drainage are being installed throughout Manitoba's Red River's basin, but little is known about how it affects nutrient runoff. (
  • The effect of drainage on nutrient release from. (
  • When entering drains, water leaches nutrients (mostly inorganic forms of nitrogen), and the increased nutrient inflow into surface water bodies leads to their eutrophication. (
  • water and nutrient requirements. (
  • This project seeks to improve crop water supply and even limit topsoil nutrient runoff into waterways through the improved management of subsurface drainage systems. (
  • Controlled drainage can reduce nutrient runoff into waterways. (
  • Such information can provide data on water resources at the basin-scale, information that is not readily available at the present time. (
  • What is the smallest drainage basin area that can be investigated in the Australian region, while still achieving estimates of sufficient accuracy to provide useful information? (
  • Consideration of the geometric relationship between source areas and the first‐order drainages that contain them results in an inverse relation between mean source‐basin length and drainage density. (
  • Drainage density is a quantity used to describe physical parameters of a drainage basin. (
  • Drainage density depends upon both climate and physical characteristics of the drainage basin. (
  • Rugged regions or those with high relief will also have a higher drainage density than other drainage basins if the other characteristics of the basin are the same. (
  • If a drainage basin contained only ephemeral streams, the drainage density by the equation above would be calculated to be zero if only the total length of streams was calculated using only perennial streams. (
  • Ignoring ephemeral streams in the calculations does not consider the behavior of the basin during flood events and is therefore not completely representative of the drainage characteristics of the basin. (
  • Drainage density is indicative of infiltration and permeability of a drainage basin, as well as relating to the shape of the hydrograph. (
  • A drainage basin can be defined by three elementary quantities: channels, the hillslope area associated with those channels, and the source areas. (
  • The volume of water produced annually from Powder River Basin CBM wells is substantially greater than that of any other western basin (see Chapter 2 and Table 2.1 ). (
  • The large number of wells with high water production from relatively shallow depths has thus focused much of the attention regarding management of CBM produced water and its impacts on this basin, particularly the Wyoming portion of the basin where most CBM production currently occurs ( Box 4.1 ). (
  • The Witwatersrand Basin produces approximately 340 M£/day of mine water (Bologo et al. (
  • This system may uniquely affect ice-sheet dynamics by routing a large volume of water to the bed outside of the typical runoff period. (
  • impermeable ground or exposed bedrock will lead to an increase in surface water runoff and therefore to more frequent streams. (
  • Urban Water Research incorporates projects focussing on the interaction between various elements of the urban water cycle, in-sewer processes, surface water runoff quality management, modelling of integrated systems (sewer, treatment plant & receiving water) as well as sustainability of urban water systems. (
  • If you look at runoff coming through tile lines versus if that water had run off the surface, if it runs off the surface it's going to be carrying a lot more nutrients than if it's going through the tile line," said David Lobb of the University of Manitoba in an interview during the Keeping Water On The Land conference in Winnipeg June 17. (
  • Controlling that surface runoff might be key to reducing nutrification, and tile drainage might help do that, Lobb said. (
  • Curbing runoff pollution, the leading threat to the nation's waters, is everyone's work. (
  • schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of waters of the United States, BMPs also include treatment requirements, operating procedures, and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage. (
  • The ability to predict the runoff response of an urban catchment to rainfall is crucial for managing drainage systems effectively and controlling discharges from urban areas. (
  • As the drainage engineer must decide how much unwanted water there will be and when it will occur, the chapter discusses climatic types, prediction of rainfall, evapotranspiration effects, return periods (of design storms and runoff events), river flow and flood prediction, and various sensing systems for providing short term predictions of rainfall, runoff, streamflow and flood warning. (
  • Runoff Reduction Method Technical Memo - Appendix F: BMP Research Summary Tables (PDF) (85 pp, 401 K, About PDF ) Exit -This technical memo by the Center for Watershed Protection presents the results of more than 100 papers in tabular form. (
  • Hydrology Research (2003) 34 (5): 493-506. (
  • This method will help address the most fundamental step in the field of environmental hydrology, which is collecting a water sample that fully represents a flow event in its entirety. (
  • and increased seismic activity (as the subterranean hydrology adjusts to the influx of water). (
  • Long-term trends in climate, hydrology, and water quality in a central Pennsylvania watershed: more grazing? (
  • Among the almost 80 participants were professors, Senior Scientists, PostDocs, PhD students from various research areas such as land use, hydrology, social sciences, biology and chemistry as well as from different countries as e.g. (
  • 2008 "GN Alexander Medal" awarded to the authors of the best paper in Hydrology and Water Resources published in an Institution of Engineers, Australia publication in the preceding 18 months. (
  • Paper presented at 2nd International Conference on Urban Storm Drainage, Illinois, United States. (
  • This technology is based on routing tile drainage water through the bioreactors, where nitrate is used by bacteria to oxidize carbon while reducing NO3 to nitrogen gas. (
  • 2016) ' Coping with Water Scarcity under Changing Climatic Conditions: Best Practices and Innovations on Trial ', available here . (
  • From August, 8 - 19 2016 TU Dresden hosted the Synthesis II-Workshop on the topic complex networks in various areas of environmental research. (
  • This technical report summarises current knowledge on the best approaches to design and construction of sustainable drainage systems. (
  • The national BGS infiltration SuDS map provides an assessment of the suitability of the subsurface for the installation of infiltration sustainable drainage systems (SuDS). (
  • What are sustainable drainage systems? (
  • These results suggest that spring applied manure has potential to reduce NO 3 -N concentrations in subsurface drainage water and also strategies need to be developed to reduce early spring NO 3 -N leaching losses. (
  • Cropping system effects on NO 3 -N losses with subsurface drainage water. (
  • hydrological, hydraulic, structural, water quality and ecological aspects of the various SUDS features available in the UK and overseas. (
  • The BGS infiltration SuDS map is intended for use by planners, water companies and developers, but also for SuDS approval bodies within local authorities, where it could be used to assess incoming SuDS planning applications. (
  • The fellowship aims to enhance the effectiveness of the recent government SuDS legislation (Floods and Water Management Act 2010), by providing support on infiltration SuDS and ground compatibility. (
  • Sustainable Urban Drainage System (SUDS) design and optimisation Drainage and Water Supply (DaWS) Optimisation - Towards a Sustainable Urban Water Cycle Predicting and Managing Flood Risks Associated with Debris at Structures: Holistic Serviceability Approaches Holistic sewerage asset management. (
  • This manual describes current best practice in England and Wales, and sets out the technical and planning considerations for designing sustainable urban drainage systems for surface water (SUDS). (
  • Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines. (
  • Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of sulfide minerals. (
  • Areas where the earth has been disturbed (e.g. construction sites, subdivisions, and transportation corridors) may create acid rock drainage. (
  • In many localities, the liquid that drains from coal stocks, coal handling facilities, coal washeries, and coal waste tips can be highly acidic, and in such cases it is treated as acid rock drainage. (
  • Historically, the acidic discharges from active or abandoned mines were called acid mine drainage, or AMD. (
  • The term acid rock drainage, or ARD, was introduced in the 1980s and 1990s to indicate that acidic drainage can originate from sources other than mines. (
  • For example, a paper presented in 1991 at a major international conference on this subject was titled: "The Prediction of Acid Rock Drainage - Lessons from the Database" Both AMD and ARD refer to low pH or acidic waters caused by the oxidation of sulfide minerals, though ARD is the more generic name. (
  • This introduction of water is the initial step in most acid rock drainage situations. (
  • Tailings piles or ponds, mine waste rock dumps, and coal spoils are also an important source of acid mine drainage. (
  • Thus, copper mines are often major culprits of acid mine drainage. (
  • For this reason, acid mine drainage is considered a serious long-term environmental problem associated with mining. (
  • citation needed] For further information, see Acidophiles in acid mine drainage The chemistry of oxidation of pyrites, the production of ferrous ions and subsequently ferric ions, is very complex, and this complexity has considerably inhibited the design of effective treatment options. (
  • Although a host of chemical processes contribute to acid mine drainage, pyrite oxidation is by far the greatest contributor. (
  • Power To Save: Acid Mine Drainage to Concrete? (
  • The Eastern Pennsylvania Coalition for Abandoned Mine Reclamation, known as EPCAMR, shipped 180 gallons of acid mine drainage from boreholes located along Solomon Creek just outside Wilkes-Barre to the University of Michigan. (
  • Really interesting conversation with @epcamr about how acid mine drainage could be used as ingredient in better concrete. (
  • Researchers will test the acid mine drainage to see if it will mix with concrete to help create a more bendable concrete. (
  • Hughes points out that this acid mine drainage was an ideal sample for research because it has a significantly higher concentration of iron. (
  • In this study, the biodepuration process of domestic sewage (DS), textile effluents (TE) and acid mine drainage (AMD) is conducted using starch-based. (
  • Acid mine drainage coats the hippos at Hippo Dam at the Krugersdorp Game Reserve. (
  • The Witwatersrand is not the only region in South Africa where acid mine drainage is a problem, but it is currently the area of greatest concern. (
  • In 2002, near the town of Krugersdorp, acid mine drainage from an abandoned mine welled up and began pouring out on the surface. (
  • Since then, about 15 million liters a day of acid mine drainage have been spilling out - some of it into a stream that flows north toward the Cradle of Humankind World Heritage Site. (
  • In the last few years, acid mine drainage has been known to be encroaching on the heritage site and has already dissolved a 16,000-cubic-meter void in the calcium carbonate rocks outside the protected site. (
  • However, last year, it was finally found within the site, where it caused a fishkill, triggering public outcry and focusing the debate on the larger issue of acid mine drainage in the Witwatersrand and throughout South Africa. (
  • Scientists estimate the volume of acid mine drainage from abandoned mines in the Witwatersrand goldfields alone could reach 350 million liters per day, threatening the Vaal River and Limpopo River watersheds that supply freshwater to hundreds of thousands of people. (
  • Despite warnings from the scientific community as early as the 1950s, the South African government only recently established a committee to investigate acid mine drainage, after it reached the Cradle of Humankind. (
  • Acid mine drainage is generated when mining activities expose sulphidic rock to water and oxygen leading to generation of sulphuric acid effluents rich in Fe, Al, SO 4 and Mn with minor concentrations of Zn, Cu, Mg, Ca, Pb depending on the geology of the rock hosting the minerals. (
  • This study assessed the potential of applying magnesite as an initial remediation step in an integrated acid mine drainage (AMD) management system. (
  • During rainfall and underground working, sulphide minerals react with water and oxygen leading to the formation of highly acidic mine effluent known as acid mine drainage (AMD). (
  • 2015). The equation below shows the formation of acid mine drainage using pyrite as an example (Simate et al. (
  • Numerous technologies have been developed for remediation of acid mine drainage (Gitari et al. (
  • In South Africa, limestone has been widely used as the main chemical agent for neutralization and removal of metals in acid mine waters (Maree et al. (
  • Acid mine drainage (AMD) is the name given to a polluted effluent from base metals, coal- and gold-mine waters. (
  • 2002) projected a 100% increase in the use of water by the mining and industrial sectors from 1996 to 2030, which could imply an increase in the acid mine drainage problem in South Africa. (
  • 2007) explored the use of active biological sulphate reduction technology, so as to treat high volumes of acid mine-water. (
  • Microbial oxidation of iron (Fe) and arsenic (As) followed by their co-precipitation leads to the natural attenuation of these elements in As-rich acid mine drainage (AMD). (
  • in acid-mine drainage (Carnoulès, France). (
  • Bruneel O, Duran R, Casiot C, Elbaz-Poulichet F, Personné JC (2006) Diversity of microorganisms in Fe-As-rich acid mine drainage waters of Carnoulès, France. (
  • Evaluation of the adequacy of constructed wetlands to improve limnological conditions and restore native fish assemblages in streams impacted by acid mine drainage in the North Chickamauga Creek watershed, Tennessee. (
  • Approaches currently used for remediating acid mine drainage (chiefly active chemical treatment and passive bioremediation systems) have a number of major detractions, including their failure to recover potentially valuable metals from these waters. (
  • Tests with synthetic mine drainage containing mixtures of soluble metals confirmed that these systems can generate relatively pure mineral deposits from complex acid waters. (
  • In the process of high expansion of drainage systems and land cultivation, most natural watercourses in Lithuania were converted into drainage channels. (
  • Additionally, the group covers issues such as the occurrence and utilisation of groundwater and surface water in alpine regions, technical water resources management, processes determining groundwater quality, management of the thermal potential of aquifers and also operation and management of alpine water supply systems. (
  • Hooda, P. S. , Moynagh, M. and Svoboda, I. F. (1996) A comparison of phosphate losses in drainage water from two different grassland systems. (
  • Conventional design standards for urban drainage systems are not set to deal with extreme rainfall events. (
  • Among other sectors, this poses a challenge to urban drainage management, when considering that drainage systems will have to deal with increased frequency and volume of stormwater flows [ 8 , 9 , 10 , 11 , 12 ]. (
  • Traditionally, drainage systems have been designed as a collection of grey infrastructure that, in most cases, will not be able to cope with such changes in stormwater flows. (
  • Our researchers are involved in investigating and designing systems for the control and utilization of land and water resources as part of an effort to best manage our urban & rural watersheds. (
  • As well, research is focused on, but not limited to, the following fields: environmental hydraulics, water supply infrastructure, groundwater flow & contaminant transport, water supply security, the remediation of groundwater systems and drainage and irrigation systems. (
  • Geological and morphological setting, topography, and climate constitute major physical factors controlling the geometry of fluvial system, drainage systems and density. (
  • Even more, due to poor maintenance, urban water and sanitation systems are deteriorating, resulting in 2008 in a large cholera outbreak (100 000 people affected and 4 000 deaths) (GoZ, 2012). (
  • This project will consist of a field day showcasing innovative drainage systems. (
  • These systems help better manage water, nutrients, and crop production. (
  • The study also considers market environment factors, details industry structure, evaluates company market share and profiles 54 industry players, including JM Eagle, Advanced Drainage Systems and Dura-Line. (
  • Seminar covers the effects of fire on drainage systems used for sanitary, rainwater and venting in industrial, commercial and public buildings. (
  • It is well known that tile drainage systems serve as transport pathways of contaminants directly from agricultural land to streams. (
  • As explained during the meeting, these present-day modeling activities are being conducted to enable ATSDR to historically reconstruct the water systems serving the base from 1968-1985. (
  • The historical reconstruction will allow ATSDR to estimate relative concentrations of particular contaminants in the water-distribution systems during that time frame so that exposures can be quantified. (
  • Questions related to water-distribution systems were modified on the second day of the meeting. (
  • To support both the groundwater and water-distribution system efforts, ATSDR should conduct in depth searching of records for additional quantitative data and detailed information of interconnections between the water-distribution systems. (
  • ATSDR planned to extensively use water-distribution system models to estimate historical contaminant concentrations in the systems. (
  • University of New Hampshire Stormwater Center (UNHSC): 2009 Biannual Report (PDF) (36 pp, 225 K, About PDF ) Exit -UNHSC operates a field research facility that hosts three classes of stormwater treatment systems: conventional systems, LID systems, and manufactured devices. (
  • Evaluation of salt-tolerant forages for sequential water reuse systems. (
  • Stroud Water Research Center is an independent, 501(c)(3) not-for-profit organization that seeks to advance knowledge and stewardship of freshwater systems through global research , education , and watershed restoration . (
  • A South Dakota official says TransCanada Corp. plans to test water from a drainage ditch near the site of a 210,000-gallon oil spill from the Keystone pipeline to determine if the water is polluted. (
  • If any person shall stop or in any way obstruct the passage of the water in any ditch or canal having been cut through. (
  • Drainage of currently undrained and waterlogged peat in West Sedgemoor will result in the transfer of high concentrations of S, Ca, and Mg from the peat to the drainage ditch. (
  • 1) When any person owns land which requires draining, or any incorporated city in which there is any ditch, standing water or surplus water requiring. (
  • No person shall tap or bring additional water into any drainage district or drainage district ditch already dug without paying a reasonable compensation therefor and. (
  • How much "error" is introduced into the estimates of Australian drainage basins from the leakage of signal from real mass variations elsewhere in the world? (
  • therefore, it is likely to permit drainage basins of smaller area to be assessed separately. (
  • We intend to develop software to generate regional GRACE solutions for studying the Australian drainage basins. (
  • The mean bifurcation ratios vary between 4.2 and 5.38 for the dip slope basins, and between 3.5 and 5.0 for the faulted-erosional slope watersheds, indicating a noticeable influence of structural disturbances ( i.e. , faulting and uplifting), and rejuvenation of drainage networks. (
  • Drainage basins represent fundamental geomorphic units for hydrological management and sustainable natural resources development. (
  • Changes in the fluvial dynamics caused by natural components or anthropogenic intervention often resulted in morphological changes across drainage basins. (
  • Since the Second World War, substantial research developed and focused on elaborating morphometric parameters, their computation, morphometric analysis methods, and characterization of drainage basins and stream networks. (
  • Table 4.1 summarizes the strategies used to manage produced water in the western CBM-producing basins. (
  • However, as outlined in Chapter 3 , within each of the CBM producing basins where water is being brought to the land surface, volume is not the only factor taken into consideration in the context of produced water management. (
  • Drainage density can be used to approximate the average length of overland flow in a catchment. (
  • Horton (1945) used the following equation to describe the average length of overland flow as a function of drainage density: l O = 1 2 D d {\displaystyle l_{O}={\frac {1}{2D_{d}}}} Where l 0 {\displaystyle l_{0}} is the length of overland flow with units of length and D d {\displaystyle D_{d}} is the drainage density of the catchment, expressed in units of inverse length. (
  • The channels are the well-defined segments that efficiently carry water through the catchment. (
  • Channel formation is a concept intimately tied to the formation and evolution of a drainage system and influence the drainage density of catchment. (
  • One of the main causes for the occurrence of urban flooding is the limited capacity of the drainage system, which, under extreme rainfall conditions, may result in flow being discharged to the catchment surface where it interacts with the incoming overland flow. (
  • Delineation of drainage networks within a catchment or sub-catchment was achieved traditionally based on field observation, topographic maps (Scale 1:25,000 and 1:50,000) and air photos. (
  • Best management practices ( BMPs ) is a term used in the United States and Canada to describe a type of water pollution control. (
  • My primary research interest is stream fish ecology, with an emphasis on water pollution issues and population/community ecology. (
  • One of the difficulties that needs to be resolved for any new development is the drainage of surface water without causing flooding or pollution, and without sterilising valuable development land. (
  • Conventional surface water drainage techniques can cause flooding, pollution and disruption of the water cycle. (
  • Mobile pump in action, mixing good quality feeder water with agricultural drainage water to satisfy water demand. (
  • To overcome this problem, farmers often pump (polluted and lower quality) water directly from the agricultural drainage canals to irrigate their lands, unaware of potential harms. (
  • This increases potential for water quality problems (e.g. salinisation) and high energy consumption. (
  • In addition, regular water quality monitoring eases concerns over food safety. (
  • Charles 'Chuck' Cravotta is a research hydrologist whose projects focus on geochemical and hydrological processes that control water quality, particularly the sources, transport, and attenuation of metals and nutrients in undisturbed and mining-impacted watersheds and aquifers. (
  • Many of the publicly available water-quality samples from rural areas were collected more than 30 years ago. (
  • Newly developed PHREEQ-N-AMDTreat water-quality prediction tools indicate potential changes in pH, dissolved metals, and associated solute concentrations resulting from passive and active treatment of coal-mine drainage. (
  • Also, high quality research contributions describing original and unpublished results of conceptual, constructive, empirical, experimental, or theoretical work in all areas of Model Application for Sustainable Agricultural Water and Drainage are cordially invited for presentation at the conference. (
  • Water is also essential to all components of the biosphere, meaning that when we alter the course, quantity, or quality of water through anthropocentric activities, there are serious consequences for countless species and ecosystems. (
  • Generally BMPs focus on water quality problems caused by increased impervious surfaces from land development . (
  • [12] BMPs also can improve receiving-water quality by extending the duration of outflows in comparison to inflow duration (known as hydrograph extension), which dilutes the stormwater discharged into a larger volume of upstream flow. (
  • For example, villagers mentioned that changes in the seasons (e.g. longer dry season, sporadic rain) decrease the availability of water sources, and the lack of water sources forces the population to use water from the rivers, which is causing diarrhea problems due to poor river water quality. (
  • This method can provide insight into water quality parameters during routine drainage events as well as during storm events when large volumes of water are discharged over multiple days. (
  • Coalbed methane (CBM) produced water can be managed as a waste product or put to beneficial use, depending on water quality and quantity, legal and regulatory issues, permitting constraints for discharge and use, the local environment and climate, and economic considerations. (
  • 1 Disposal and storage options include direct discharge to surface water bodies (depending on produced water quality and quantity and relevant regulations), deep- or shallow-well reinjection and/or storage in surface impoundments, evaporation, and land application. (
  • The focus of this project is to monitor water quality, water table level, and yield in the proposed subirrigated corn field. (
  • By managing the water table differently in each zone, we will be able to make informed management decisions that maximize yield while maintaining a focus on improved water quality coming from the tile outlets. (
  • Variable rate fertilizer application technologies utilized by production agriculture increase the complexity of interactions with the natural environment, notably water quality originating from farm fields. (
  • Water quality and flow velocity are relatively high. (
  • Results of nine-year studies (1999-2007) on water quality are reported in this paper. (
  • 2012) and this has been reported to impair the quality of water downstream (Jooste et al. (
  • Stormwater management objectives have shifted from controlling peak flows to mitigating impacts on water quality and ecosystems. (
  • Water quality and quantity data are presented for green infrastructure and conventional controls. (
  • impacts on ground water quality. (
  • improving water quality. (
  • Assessments of water quality, habitat, and aquatic macrofauna in a Cumberland Plateau stream: a geographic information system (GIS) approach. (
  • Investigation of the effects of watershed land use on water quality and aquatic biota in urban streams in Chattanooga, Tennessee. (
  • Artificial mixing for destratification and control of cynobacterial growth in reservoirs (with CRC for Water Quality and Treatment). (
  • Modelling the dynamic nature of tidal inlets and the effect on flooding and water quality of coastal areas. (
  • Mining impacts on the water quality and ecology of New Zealand freshwaters. (
  • Effects of agriculture on water quality. (
  • The most significant external research assessment for UK higher education institutions is the Research Excellence Framework (REF). REF is carried out periodically and considers the quality of research outputs, the impact of research beyond academia and the environment within which research takes place. (
  • In its National Climate Change Adaptation Strategy, Egypt identified the reuse of agricultural drainage water as one of its most promising options. (
  • The main objective of this pilot measure is the reuse of agricultural drainage water through the purchase and use of a mobile pumping unit to help the local community by mixing it with irrigation water during the period of high water demand [May - September]. (
  • The hydrological/hydraulic investigation of the Hung Shui Kiu Drainage Channel. (
  • The board also faces increased capital costs for its 35 percent local share toward the $1.3 billion Southeast Louisiana Drainage Project, which includes citywide improvements to pump stations and drainage canals. (
  • Misuse and lack of maintenance are the two main reasons why drainage structures (road drainage ditches, culverts, dam site drainage or drainage canals in irrigation schemes, and also drainage water treatment and disposal facilities) are often associated with environmental health problems. (
  • Thus, drainage canals or drainage water treatment and disposal facilities are often misused for washing, drinking and uncontrolled disposal of human excreta or other waste by the poorest and, thus, most vulnerable social groups. (
  • Nitrate-nitrogen in tile drainage as affected by fertilization. (
  • The water samples will be sent to a lab to be tested for nitrate-nitrogen. (
  • Additionally, the ensuing fate of nitrate in the environment and drinking water system was evaluated via a case study and spatial correlations. (
  • As a new technology, woodchip denitrification bioreactors for tile drainage are being investigated for practical edge-of-field nitrate (NO3) removal. (
  • Nitrate-nitrogen removal efficiency and rate along with the measurements of other water parameters at the inlet and outlet of each bioreactor were conducted with irregular time intervals. (
  • Northern Prairie Wildlife Research Center (NPWRC) recently completed a project aimed at understanding the impacts of wetland drainage on wetlands that receive drainage water. (
  • We explore this complexity through an example of an existing complex, or wicked, policy problem-the case of agricultural wetland drainage in the Canadian Prairies. (
  • Agricultural wetland drainage expands the amount of productive agricultural land, increasing agricultural efficiency and productivity. (
  • First, we discuss agricultural wetland drainage as practiced in the province of Saskatchewan, where significant regulatory and governance changes are in progress. (
  • In this paper, we explore this proposition using the case of agricultural wetland drainage in the Canadian Prairies. (
  • Tuesday, the Sewerage & Water Board's Finance Committee gave preliminary approval to a $296,000 contract extension with Raftelis, a financial consulting firm tasked with developing a user fee for drainage management. (
  • The activities of the group are closely connected with the regional effort to establish Tyrol as a key figure with respect to alpine water management. (
  • Farmers can make management decisions to protect water resources while spreading manure this winter. (
  • The authors received funding from the following agencies that supported their work: USEPA, NSF, NOAA, USGS, Marsh Ecology Research Program (MERP), Sea Grant, and the Netherlands Organization for Scientific Research and end-user partners, such as Queensland Environment and Heritage Protection and Great Barrier Reef Marine Park Authority that have helped align the work with management needs. (
  • This chapter addresses the management of CBM produced water, including options for beneficial use, and provides context for Chapter 5 , which addresses effects of CBM produced water on the environment. (
  • CBM produced water management includes (1) disposal, storage, or treatment as a waste product of methane recovery or (2) application in one of many beneficial use opportunities, with or without treatment. (
  • Concern on the part of the CBM operator over liability associated with produced water management, including water use, discharge, and transfer. (
  • Each zone will be managed differently in respect to controlled drainage and sub-irrigation management. (
  • However, many of the practices recommended in the 1987 edition of ARR have become outdated, and no longer represent the accepted views of professionals, both in terms of technique and approach to water management. (
  • This seminar provides an introduction to using geocellular units as a sub-base replacement for storm water management incorporating water treatment. (
  • Consequently, the above-mentioned diseases can also be associated either directly or indirectly with the design and management of treatment and disposal plants for the re-use, treatment or disposal of drainage water. (
  • Farmers seem to concentrate on irrigation water management rather than on drainage management. (
  • WHO (1997) reports that 90 percent of the global burden of this disease can be attributed to environmental factors, including land and water management. (
  • Shkinkis, C.N. (1979) Subsurface Drainage Results for Over-Wetted Soils of the Latvian S.S.R. Agricultural Water Management, 2, 55-65. (
  • Video by Vitek Radim (MSc Water Management, University of Exeter). (
  • Agricultural water management. (
  • Subsequent defecation accelerates seed germination, awakening seeds from dormancy and enabling water permeability. (
  • But most of the agriculturally based phosphorus outflow comes from water pouring off the surface of fields, many scientists say. (
  • Hydrocarbonates and calcium ions are prevailing in drainage outflow. (
  • The significant differences between potassium, chlorides, sulphates and phosphate concentrations in control drainage outflow and the treatments with lime were estimated. (
  • We show that surface meltwater can drive crevasses to the top surface of the firn aquifer (~20 m depth), whereupon it receives water at rates corresponding to the water flux through the aquifer. (
  • Englacial refreezing of firn-aquifer water raises the average local ice temperature by ~4°C over a ten-year period, which enhances deformational ice motion by ~50 m year −1 , compared to the observed surface velocity of ~200 m year −1 . (
  • Sub-surface mining often progresses below the water table, so water must be constantly pumped out of the mine in order to prevent flooding. (
  • Whenever ground conditions and site characteristics have been conducive to infiltration drainage this has often been the preferred surface water drainage strategy. (
  • 1. Surface water discharge 2. (
  • Proper surface and subsurface drainage to remove excess water in a safe and timely manner plays an important role in controlling water related diseases. (
  • Extending to more than 2.4 kilometers (8000 feet) below the surface of the earth, the Sanford Underground Research Facility offers a unique opportunity to explore microbial life in Earth's deep terrestrial ecosystems. (
  • These effluents must be collected and treated before release into surface water bodies. (
  • Journal of irrigation and drainage engineering. (
  • Bioreactors and controlled drainage expand options for feeding our crops and protecting our water. (
  • We have devised innovative approaches for remediating mine waters that use acidophilic bacteria to remove metals either as oxidized or reduced phases, using modular bioreactors that are designed to operate at minimal cost and to generate products that have commercial value. (
  • 2006. Localized effects of coal mine drainage on fish assemblages in a Cumberland Plateau stream in Tennessee. (
  • The new revenue could not be used to address drainage system needs," estimated at $356 million over eight years. (
  • Next, we discuss the challenges of policy and governance fragmentation, both specific to water and to the surrounding system. (
  • The field day will showcase an innovative subsurface drainage system on the farm. (
  • The system is designed to manage when and how much water is being drained via controlled drainage, and to capture and store the drainage water in a storage reservoir so it can be reused and recycled through a subsurface irrigation system. (
  • Heavy-textured clay loam soils were drained by a composite drainage system. (
  • ATSDR requested the panel of nine experts to provide input on the agency's groundwater resources and water-distribution system modeling activities conducted from March-December 2004 at U.S. Marine Corps (USMC) Base, Camp Lejeune, North Carolina. (
  • Construction of a code describing the network topology, along with parallel files containing attribute information of each drainage area and associated stream link may form the basis for an efficient watershed information system. (
  • Drainage methods inspired by natural processes are introduced, and guidance is given on how the design team should plan, select and design a suitable system. (
  • Water is a critical resource, yet little is currently known about the actual amount of groundwater available, let alone how the resource is changing. (
  • Morphometric analysis and flash floods assessment were conducted for the watersheds of Ras En Naqb escarpment, south Jordan. (
  • Detailed morphometric analysis of watersheds, helps to explore the geomorphic history, evolution and characteristics of landforms, and development of drainage networks. (
  • Artificial drainage is a common agricultural practice in Lithuania. (
  • The whole field of drainage is covered, and although the book concentrates mainly on the practice in North America, Europe and Britain, the practice in developing countries is also included. (
  • Assess the agronomic and environmental benefits derived from a controlled drainage practice adjusted for the season (precision drainage). (
  • This design manual provides detailed technical advice on sustainable methods of water drainage in the UK, putting sustainable development into practice. (
  • 2009 ALTC Citation Award - For the sustained maintenance of a caring community of practice among water engineering students that enhances student learning through interactivity and facilitated discussion. (
  • We will supplement our assessment of the controlled drainage trial results from these four sites with crop yield data. (
  • The overall improvement in REF2014 was particularly pleasing as our explicitly interdisciplinary research strategy potentially hampered success in a subject-driven assessment process. (
  • The following information gives the proportions of research graded 3* and 4* in each unit of assessment to which we submitted, for REF 2014 and RAE2008. (
  • Careful control and appropriate reuse of drainage water can help protect the environment and optimize the use of water resources. (
  • Perhaps most notably, Professor Hirose was appointed as a Tier 1 Canada Research Chair (CRC) in Plasma Science at the University of Saskatchewan in 2001, which was renewed for a second term in 2008. (
  • ORS 549.320 to 549.400 shall not be construed to interfere with or to prevent the right or power to construct drainage ditches under any other. (
  • The government has budgeted funding to implement some preliminary remediation efforts by February 2012, including pumping some of the mines most at risk for flooding and performing basic water treatment. (
  • 1988 Awarded the Australian Water and Wastewater Association, Newcastle Group Prize for Year IV Project Report. (
  • Finally, water is at the center of multiple current events, such as the dramatic water shortage facing South Africa or catastrophic flooding in parts of Canada, which highlight the interconnectedness of water with challenges such as population growth and climate change. (
  • The name Witwatersrand, literally "White Water Ridge" in Afrikaans, is ubiquitous in South Africa. (
  • Fortunately, in the pilot area available drainage water is not polluted by village or industrial effluents. (
  • After being exposed to air and water, oxidation of metal sulfides (often pyrite, which is iron-sulfide) within the surrounding rock and overburden generates acidity. (
  • Water is reused rather than being sent down the stream, and nutrients are recycled from the drainage water back to growing crops. (
  • After waiting weeks to harvest his winter crops, farmer Abdelkarim al-Shaikh stared in sorrow at his land flooded and sunk by rainwater due to a blockage in the drainage cesspit, which is set up in the apartheid wall adjacent to his land. (
  • As a result, the land was sunk in water causing a total damage to the crops. (
  • In addition, 300 to 400 dunums planted with citrus sunk in water causing a damage in the crops. (
  • This research project, initiated by the CÉROM grain research centre, looks to assess the cost-effectiveness of nitrogen fertilizer applications improved by the addition of urea, for use with winter wheat crops grown in Québec. (
  • The toxic metals, high salt concentrations and low pH in the AMD pose a major environmental threat through polluting water resources (Picavet et al. (
  • Research on how well stormwater controls reduce pollutant concentrations and loads has generated vast quantities of data. (
  • Chapter 6 reviews specific water treatment options and associated costs for managing CBM produced water. (
  • Chapter 1 outlines the necessity for drainage on a large or small scale, for rural and urban areas. (
  • The overall goal of this procedure is to provide a novel method for capturing in situ composite flow-weighted farm canal discharge water and suspended particulates during drainage events for their physical chemical characterization. (
  • To capture suspended particulates, position two, 200 liter PVC settling tanks a few feet from the datalogger to collect farm canal discharge water over the duration of the drainage period. (
  • Being aware of the danger of AMD to the environment, mitigation options could be used to prevent the contamination of streams, rivers and lakes by effluent discharge from the mines or to treat the contaminated water. (
  • It was jointly organized by TU Dresden and Helmholtz Centre for Environmental Research (UFZ) - which together form the Center of Advanced Water Research (CAWR)- in cooperation with the Purdue University and University of Florida. (
  • The use of isotopic exchange kinetics to assess phosphorus availability in overland flow and subsurface drainage waters. (
  • Consequently, to determine the possibilities to combine re-naturalization processes in channels with their function-ability it was examined the tendencies of woody vegetation (WV) spreading and the hydraulic calculation formulas estimating the performance of overgrown channels as water recipients were suggested. (
  • Consequently, to determine the possibilities to combine re-naturalization processes in channels with their function-ability it was examined the tendencies of woody vegetation (WV) spreading and the hydraulic calculation formulas estimating the performance of overgrown channels as water recipients were suggested.As the study results showed, self-restoration of WV was most progressive in forest and outskirt channels. (
  • Casiot C, Leblanc M, Bruneel O (2003a) Geochemical processes controlling the formation of As-rich waters within a tailings impoundment (Carnoulès, France). (
  • Complex interactions between water, society, the economy, and the environment necessitate attention to how water issues are framed, and the limitations of a water-centric framework for analyzing or solving problems. (
  • Using the nuances of drainage as an exemplar, we discuss how fragmented framings of water foster perspectives and solutions that fail to consider the full range of aspects and interactions, and contribute to the enduring conflicts that accompany drainage debates in many regions. (
  • lol, you think mine water is going to change the dynamics of concrete. (
  • We experimentally study the drainage dynamics and the equilibrium state of an oil droplet surrounded by brine pressed against a glass substrate. (
  • The originality of our results relies on the derivation of simple analytical laws quantitatively describing the drainage dynamics and providing tools to uncouple the effect of the film geometry from the effects of disjoining or capillary pressures. (
  • In December the New Orleans City Council approved a plan to double sewer and water rates by 2020. (
  • ICMASAWD 2020 has teamed up with the Special Journal Issue on Model Application for Sustainable Agricultural Water and Drainage . (
  • The formulas estimating conductivity of overgrown channels are based on the balance of forces occurring on the boundaries of overgrown strips of a stream: resistance of tree stems, friction on the slopes, shear stresses that appear when two streams with different velocities are in contact and the horizontal component of the gravity force causing water movement. (
  • Labeling these features as "channels" rather than "streams" indicates that there need not be a continuous flow of water to capture the behavior of this region as a conduit of water. (
  • Scrimp on that next drainage project to save money and protect our lakes and streams. (
  • The implications of this water-level increase and eventual stabilization is that it reduces biological productivity and favors invasive species. (
  • The rate of transformations of nitrates into gaseous forms depends on biological activity, inflow water temperature, pH, dissolved oxygen amount, flow velocity and hydraulic retention time. (
  • Climate change exacerbates the vulnerability that results from water scarcity. (
  • The pilot measure by the GIZ regional programme: "Adaptation to Climate Change in the Water Sector in the MENA Region (ACCWaM)" was located in the Mahmoudia District of Beheira Governorate, was implemented via the delivery of a mobile pumping unit in July 2013. (
  • Many forests and their associated water resources are at increasing risk from large and severe wildfires due to high fuel accumulations and climate change. (
  • Improve Crop Water-use Efficiency. (