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Ontario Minamata Disease
Ontario Minamata disease is a neurological syndrome caused by severe mercury poisoning. It occurred in the Canadian province of Ontario, in 1970, and severely affected two First Nation communities in Northwestern Ontario following consumption of local fish contaminated with mercury, and one First Nation in Southern Ontario due to illegal disposal of industrial chemical waste. The disease was named after the infamous case of severe mercury poisoning in the fishing community of Minamata, Japan, which became known as Minamata disease because it devastated only the residents of the community. Source of the mercury pollution Grassy Narrows and Whitedog First Nations In 1962, Dryden Chemical Company began operating a chloralkali process plant in Dryden, Ontario, using mercury cells. It produced sodium hydroxide and chlorine that were used in large amounts for bleaching paper during production by the nearby Dryden Pulp and Paper Company. Both companies were subsidiaries of the British ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neurology
Neurology (from el, wikt:νεῦρον, νεῦρον (neûron), "string, nerve" and the suffix wikt:-logia, -logia, "study of") is the branch of specialty (medicine), medicine dealing with the diagnosis and treatment of all categories of conditions and disease involving the brain, the spinal cord and the peripheral nerves. Neurological practice relies heavily on the field of neuroscience, the scientific study of the nervous system. A neurologist is a physician specializing in neurology and trained to investigate, diagnose and treat neurological disorders. Neurologists treat a myriad of neurologic conditions, including stroke, seizures, movement disorders such as Parkinson's disease, autoimmune neurologic disorders such as multiple sclerosis, headache disorders like migraine and dementias such as Alzheimer's disease. Neurologists may also be involved in clinical research, clinical trials, and basic research, basic or translational research. While neurology is a nonsurgical sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryden Pulp And Paper Company
'' John Dryden (; – ) was an English poet, literary critic, translator, and playwright who in 1668 was appointed England's first Poet Laureate. He is seen as dominating the literary life of Restoration England to such a point that the period came to be known in literary circles as the Age of Dryden. Romanticist writer Sir Walter Scott called him "Glorious John". Early life Dryden was born in the village rectory of Aldwincle near Thrapston in Northamptonshire, where his maternal grandfather was the rector of All Saints. He was the eldest of fourteen children born to Erasmus Dryden and wife Mary Pickering, paternal grandson of Sir Erasmus Dryden, 1st Barone t (1553–1632), and wife Frances Wilkes, Puritan landowning gentry who supported the Puritan cause and Parliament. He was a second cousin once removed of Jonathan Swift. As a boy, Dryden lived in the nearby village of Titchmarsh, where it is likely that he received his first education. In 1644 he was sent to Westminst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tremor
A tremor is an involuntary, somewhat rhythmic, muscle contraction and relaxation involving oscillations or twitching movements of one or more body parts. It is the most common of all involuntary movements and can affect the hands, arms, eyes, face, head, vocal folds, trunk, and legs. Most tremors occur in the hands. In some people, a tremor is a symptom of another neurological disorder. A very common tremor is the teeth chattering, usually induced by cold temperatures or by fear. Types Tremor is most commonly classified by clinical features and cause or origin. Some of the better-known forms of tremor, with their symptoms, include the following: * Cerebellar tremor (also known as intention tremor) is a slow, broad tremor of the extremities that occurs at the end of a purposeful movement, such as trying to press a button or touching a finger to the tip of one's nose. Cerebellar tremor is caused by lesions in or damage to the cerebellum resulting from stroke, tumor, or disease such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eye Movement (sensory)
Eye movement includes the voluntary or involuntary movement of the eyes. Eye movements are used by a number of organisms (e.g. primates, rodents, flies, birds, fish, cats, crabs, octopus) to fixate, inspect and track visual objects of interests. A special type of eye movement, rapid eye movement, occurs during REM sleep. The eyes are the visual organs of the human body, and move using a system of six muscles. The retina, a specialised type of tissue containing photoreceptors, senses light. These specialised cells convert light into electrochemical signals. These signals travel along the optic nerve fibers to the brain, where they are interpreted as vision in the visual cortex. Primates and many other vertebrates use three types of voluntary eye movement to track objects of interest: smooth pursuit, vergence shifts and saccades. These types of movements appear to be initiated by a small cortical region in the brain's frontal lobe. This is corroborated by removal of the fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hearing Impairment
Hearing loss is a partial or total inability to hear. Hearing loss may be present at birth or acquired at any time afterwards. Hearing loss may occur in one or both ears. In children, hearing problems can affect the ability to acquire spoken language, and in adults it can create difficulties with social interaction and at work. Hearing loss can be temporary or permanent. Hearing loss related to age usually affects both ears and is due to cochlear hair cell loss. In some people, particularly older people, hearing loss can result in loneliness. Deaf people usually have little to no hearing. Hearing loss may be caused by a number of factors, including: genetics, ageing, exposure to noise, some infections, birth complications, trauma to the ear, and certain medications or toxins. A common condition that results in hearing loss is chronic ear infections. Certain infections during pregnancy, such as cytomegalovirus, syphilis and rubella, may also cause hearing loss in the child. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visual Field
The visual field is the "spatial array of visual sensations available to observation in introspectionist psychological experiments". Or simply, visual field can be defined as the entire area that can be seen when an eye is fixed straight at a point. The equivalent concept for optical instruments and image sensors is the field of view (FOV). In optometry, ophthalmology, and neurology, a visual field test is used to determine whether the visual field is affected by diseases that cause local scotoma or a more extensive loss of vision or a reduction in sensitivity (increase in threshold). Normal limits The normal (monocular) human visual field extends to approximately 60 degrees nasally (toward the nose, or inward) from the vertical meridian in each eye, to 107 degrees temporally (away from the nose, or outwards) from the vertical meridian, and approximately 70 degrees above and 80 below the horizontal meridian. The binocular visual field is the superimposition of the two monocular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parts Per Billion
In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Since these fractions are quantity-per-quantity measures, they are pure numbers with no associated units of measurement. Commonly used are parts-per-million (ppm, ), parts-per-billion (ppb, ), parts-per-trillion (ppt, ) and parts-per-quadrillion (ppq, ). This notation is not part of the International System of Units (SI) system and its meaning is ambiguous. Overview Parts-per notation is often used describing dilute solutions in chemistry, for instance, the relative abundance of dissolved minerals or pollutants in water. The quantity "1 ppm" can be used for a mass fraction if a water-borne pollutant is present at one-millionth of a gram per gram of sample solution. When working with aqueous solutions, it is common to assume that the density of water is 1.00 g/mL. Therefore, it is common to equate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kumamoto University
, abbreviated to ''Kumadai'' (熊大), is a Japanese national university located in Kumamoto, Kumamoto Prefecture in the Kyushu region of Japan. It was established on May 31, 1949, at which time the following institutions were subsumed into it; Kumamoto Teachers College (established in 1874), Kumamoto Pharmaceutical College (1885), the Fifth High School (1887), Kumamoto Medical College (1896), and Kumamoto Technical College (1906). Currently, the university has seven faculties and eight graduate schools with a total of around 10,000 Japanese students and 500 international students from Asia, North America, South America, Europe, Africa, and Oceania. It is involved in the Top Global University Project, selected by the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), which aims to improve education in Japanese universities in order to increase global recognition and compete with the rest of the world. History The university was chartered by the Sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wabaseemoong Independent Nations
Wabaseemoong Independent Nations or more fully as the Wabaseemoong Independent Nations of One Man Lake, Swan Lake and Whitedog, is an Ojibway First Nation band government who reside 120 km northwest of Kenora, Ontario and east of the Ontario-Manitoba border of northwestern Ontario, Canada. As of December 2018, the First Nation had a population of 2,000 registered people, of which their on-Reserve population was 1200 registered members and approximately 100 non-Band members. History Prior to hydroelectric development in the 1950s, the First Nation was composed of three separate communities of One Man Lake, Swan Lake and Whitedog. The three communities were then amalgamated into a unified Band called the Islington Band of Saulteaux when the hydroelectric development flooding debased all their membership and significant portions of their Islington Traditional Land Use Area were made inaccessible. In the 1960s and 1970s, the First Nation was severely affected by acute mercur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asubpeeschoseewagong First Nation
Asubpeeschoseewagong First Nation (also known as Grassy Narrows First Nation or the ''Asabiinyashkosiwagong Nitam-Anishinaabeg'' in the Ojibwe language) is an Ojibwe First Nations band government who inhabit northern Kenora in Ontario, Canada. Their landbase is the English River 21 Indian Reserve. It has a registered population of 1,595 as of October 2019, of which the on-reserve population was 971. As of October 2020, the community had a population of approximately 1,200. They are a signatory to Treaty 3. Overview The community was under a long-term drinking water advisory from about 2013 through October 2020, when it was lifted. In the spring of 2020 the federal government reached an agreement with Grassy Narrows to "build a $20 million clinic for those suffering from mercury poisoning". Generations of Grassy Lakes continue to suffer from the physical, social, and economic costs of the discharge of approximately ten tons of mercury into the Wabigoon River between 1962 an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Market
A black market, underground economy, or shadow economy is a clandestine market or series of transactions that has some aspect of illegality or is characterized by noncompliance with an institutional set of rules. If the rule defines the set of goods and services whose production and distribution is prohibited by law, non-compliance with the rule constitutes a black market trade since the transaction itself is illegal. Parties engaging in the production or distribution of prohibited goods and services are members of the . Examples include the illegal drug trade, prostitution (where prohibited), illegal currency transactions, and human trafficking. Violations of the tax code involving income tax evasion in the . Because tax evasion or participation in a black market activity is illegal, participants attempt to hide their behavior from the government or regulatory authority. Cash is the preferred medium of exchange in illegal transactions since cash transactions are less-easi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aamjiwnaang First Nation
The Aamjiwnaang First Nation (formerly known as Chippewas of Sarnia First Nation) is an Anishinaabe (Ojibwe) First Nations Band located on reserve land by the St. Clair River, three miles south of the southern tip of Lake Huron. The reserve is located across from the United States border from Port Huron, Michigan, and is a result of treaties that were negotiated with the Crown in the 1820s. There are approximately 2,000 band members with about 850 living on the reserve. Their heritage language is Ojibwe. The word ''Aamjiwnaang'' (am-JIN-nun) means "meeting place by the rapid water", which describes the surrounding communities. Environmental issues The Aamjiwnaang community has expressed concern regarding its proximity to petrochemical, polymer, and chemical plants in the area, as birth rates of their people have been documented by the American journal ''Environmental Health Perspectives'' as deviating from the normal ratio of close to 50% boys, 50% girls. The ratio as found b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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