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Griffith Evans (bacteriologist)
Griffith Evans (7 August 1835 – 7 December 1935) was a Welsh physician and veterinary pathologist who was the first to determine that a trypanosome parasite was responsible for surra disease in horses while serving in British India. Described as "the man who first saw a pathogenic trypanosome", he identified the causal organism as a haematozoon (blood parasite) in 1880 which was given the species name ''Trypanosoma evansi'' after him. Biography Evans was born in Ty-mawr, Towyn, Wales, as the only son to Evans (1801–1882) and Mary Jones (1809–1877). Coming from a wealthy family with an illustrious history he went to school at Bryn-crug and later studied privately under a local medical doctor John Pughe at Aberdovey and Towyn. Due to family circumstances, Pughe suggested that Evans could become a veterinarian in shorter time than as a doctor. He joined the course, bought himself a microscope for private study, and qualified at the top of his MRCVS batch in 1855 from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microbiology
Microbiology () is the scientific study of microorganisms, those being unicellular (single cell), multicellular (cell colony), or acellular (lacking cells). Microbiology encompasses numerous sub-disciplines including virology, bacteriology, protistology, mycology, immunology, and parasitology. Eukaryotic microorganisms possess membrane-bound organelles and include fungi and protists, whereas prokaryotic organisms—all of which are microorganisms—are conventionally classified as lacking membrane-bound organelles and include Bacteria and Archaea. Microbiologists traditionally relied on culture, staining, and microscopy. However, less than 1% of the microorganisms present in common environments can be cultured in isolation using current means. Microbiologists often rely on molecular biology tools such as DNA sequence based identification, for example the 16S rRNA gene sequence used for bacteria identification. Viruses have been variably classified as organisms, as they have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ludhiana
Ludhiana ( ) is the most populous and the largest Cities in India, city in the Indian state of Punjab, India, Punjab. The city has an estimated population of 1,618,879 2011 Indian census, 2011 census and distributed over , making Ludhiana the most densely populated urban centre in the state. It is a major industrial center of Northern India, referred to as the India's Manchester by the BBC. It stands on the old bank of Sutlej River, that is now to the south of its present course. The Union Ministry of Housing and Urban Affairs has placed Ludhiana on the 48th position among the top 100 smart cities and has been ranked as one of the easiest city in India for business according to the World Bank. History Ludhiana was founded in 1480 by members of the ruling Lodhi dynasty of the Delhi Sultanate. The ruling sultan, Sikandar Lodhi, dispatched two ruling chiefs, Yusuf Khan and Nihad Khan, to re-assert Lodhi control. The two men camped at the site of present Ludhiana, which was then ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Medical Association
The British Medical Association (BMA) is a registered trade union for doctors in the United Kingdom. The association does not regulate or certify doctors, a responsibility which lies with the General Medical Council. The association's headquarters are in Tavistock Square, London and it has national offices in Cardiff, Belfast, and Edinburgh, a European office in Brussels and a number of offices in English regions. The BMA has a range of representative and scientific committees and is recognised by National Health Service (NHS) employers as the sole contract negotiator for doctors. The BMA's stated aim is "to promote the medical and allied sciences, and to maintain the honour and interests of the medical profession". History Provincial Medical and Surgical Association and Webster's Medical Association The British Medical Association traces its origins to the Provincial Medical and Surgical Association (PMSA), founded by Sir Charles Hastings on 19 July 1832, and to the "Britis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edgar Crookshank
Edgar March Crookshank (2 October 1858 – 1 July 1928) was an English physician and microbiologist. Biography Crookshank studied at King's College London and qualified for medicine in 1881. He served briefly as an assistant to Joseph Lister, a physician noted for his work promoting antiseptics and sterile surgery. In 1882, Crookshank served as a doctor with the British armed forces sent to Egypt as a result of the Urabi Revolt; he was decorated for his service at the Battle of Tel el-Kebir. On return from Egypt, Crookshank toured Europe in 1884 for further medical training. In Berlin, he visited the laboratory of Robert Koch and learned methods of isolating bacterial strains to investigate infectious diseases. When he returned to London, Crookshank wrote a textbook, ''An Introduction to Practical Bacteriology Based on the Methods of Koch'', which was published in 1886. Subsequent editions were published under differing titles in 1887, 1890 and 1896, and a French translation b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spirochaete
A spirochaete () or spirochete is a member of the phylum Spirochaetota (), (synonym Spirochaetes) which contains distinctive diderm (double-membrane) gram-negative bacteria, most of which have long, helically coiled (corkscrew-shaped or spiraled, hence the name) cells. Spirochaetes are chemoheterotrophic in nature, with lengths between 3 and 500 μm and diameters around 0.09 to at least 3 μm. Spirochaetes are distinguished from other bacterial phyla by the location of their flagella, called endoflagella which are sometimes called ''axial filaments''. Endoflagella are anchored at each end (pole) of the bacterium within the periplasmic space (between the inner and outer membranes) where they project backwards to extend the length of the cell. These cause a twisting motion which allows the spirochaete to move about. When reproducing, a spirochaete will undergo asexual transverse binary fission. Most spirochaetes are free-living and anaerobic, but there are numero ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature (journal)
''Nature'' is a British weekly scientific journal founded and based in London, England. As a multidisciplinary publication, ''Nature'' features peer-reviewed research from a variety of academic disciplines, mainly in science and technology. It has core editorial offices across the United States, continental Europe, and Asia under the international scientific publishing company Springer Nature. ''Nature'' was one of the world's most cited scientific journals by the Science Edition of the 2019 ''Journal Citation Reports'' (with an ascribed impact factor of 42.778), making it one of the world's most-read and most prestigious academic journals. , it claimed an online readership of about three million unique readers per month. Founded in autumn 1869, ''Nature'' was first circulated by Norman Lockyer and Alexander Macmillan as a public forum for scientific innovations. The mid-20th century facilitated an editorial expansion for the journal; ''Nature'' redoubled its efforts in exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical College Kolkata
, mottoeng = Humanity and Science , type = Public medical school , established = , founder = Lord William Bentinck , principal = Raghunath Mishra , faculty = 249 () , students = 1,891 () , undergrad = 1,245 () , postgrad = 646 () , doctoral = , campus = Urban , address = 88 College Street, Kolkata 700001 , coordinates = , academic_affiliations = , website = Calcutta Medical College, officially Medical College and Hospital, Kolkata, is a public medical school and hospital in Kolkata, West Bengal, India. It is the oldest existing hospital in Asia. The institute was established on 28 January 1835 by Lord William Bentinck during British Raj as Medical College, Bengal. It is the second oldest medical college to teach Western medicine in Asia after Ecole de Médicine de Pondiché ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trypanosoma Lewisi
''Trypanosoma lewisi'' is a globally distributed parasite of ''Rattus'' species and other rodents such as mice, and of kangaroo rats in America. Among these host species were two endemic species of rats: '' Rattus macleari'' and '' Rattus nativitatis''. Both are now believed to be extinct. It is not very clear whether or not the same parasite infected both species. However, both parasites are very similar. The northern rat flea (''Nosopsyllus fasciatus'') acts as the vector for the parasite, harboring the epimastigote stage in its midgut. The trypomastigote is the stage that is present in the main host, the rodent. The epimastigote form attaches itself to the rectum of the insect using its flagella to burrow through the rectal walls. The parasites also appear in the flea's feces. Ingestion of either the flea or its feces during grooming infects the host rodent with the parasites. ''T. lewisi'' is normally non-pathogenic but is known to have produced fatal infections in rats. His ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timothy Richards Lewis
Timothy Richards Lewis (31 October 1841 – 7 May 1886) was a Welsh surgeon and pathologist who worked in India on several aspects of tropical medicine. He worked during the early period when the role of pathogenic organisms in disease were beginning to triumph over the older miasma theory. He was one of the first to identify the role of nematode worms in filariasis. His studies include those on cholera, leprosy, trypanosoma, and fungal infections. Lewis was born at Llanboidy, Carmarthenshire to William Lewis and Britania née Richards and he grew up on the family farm at Pembrokeshire. After studying at Narberth National School the grammar school run by Joseph and William Edward Morris he apprenticed to a Narberth chemist. He moved to London when he was nineteen and worked as a chemist in Streatham and later at the German Hospital where he picked up the German language. He also attended lectures at the University College London, received a Fellowes silver medal in 1866 and qual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marathi Language
Marathi (; ''Marāṭhī'', ) is an Indo-Aryan languages, Indo-Aryan language predominantly spoken by Marathi people in the Indian state of Maharashtra. It is the official language of Maharashtra, and additional official language in the state of Goa. It is one of the 22 scheduled languages of India, with 83 million speakers as of 2011. Marathi ranks 11th in the List of languages by number of native speakers, list of languages with most native speakers in the world. Marathi has the List of languages by number of native speakers in India, third largest number of native speakers in India, after Hindi Language, Hindi and Bengali language, Bengali. The language has some of the oldest literature of all modern Indian languages. The major dialects of Marathi are Standard Marathi and the Varhadi dialect. Marathi distinguishes Clusivity, inclusive and exclusive forms of 'we' and possesses a three-way Grammatical gender, gender system, that features the neuter in addition to the masculine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haemoglobin
Hemoglobin (haemoglobin BrE) (from the Greek word αἷμα, ''haîma'' 'blood' + Latin ''globus'' 'ball, sphere' + ''-in'') (), abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein present in red blood cells (erythrocytes) of almost all vertebrates (the exception being the fish family Channichthyidae) as well as the tissues of some invertebrates. Hemoglobin in blood carries oxygen from the respiratory organs (''e.g.'' lungs or gills) to the rest of the body (''i.e.'' tissues). There it releases the oxygen to permit aerobic respiration to provide energy to power functions of an organism in the process called metabolism. A healthy individual human has 12to 20grams of hemoglobin in every 100mL of blood. In mammals, the chromoprotein makes up about 96% of the red blood cells' dry content (by weight), and around 35% of the total content (including water). Hemoglobin has an oxygen-binding capacity of 1.34mL O2 per gram, which increases the total blood oxygen ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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