|
William Trager
William Trager (20 March 1910 – 22 January 2005) was an American parasitologist, professor at Rockefeller University, and member of the National Academy of Sciences of the United States. Trager's research focused on developing microbiological culture systems for a variety of eukaryotic pathogens. He is best known for developing a culture system for the malaria parasite ''Plasmodium falciparum'' with James Jensen in the 1970s. Early life and education William Trager was born March 20, 1910, in Newark, New Jersey to Leon and Anna (Emilfork) Trager. He received his Bachelor of Science degree from Rutgers University in 1930. He then moved to Harvard University where he was the first graduate student of L. R. Cleveland. In Cleveland's lab, Trager established a culture system for flagellate symbionts of the roach ''Cryptocercus punctulatus'', showing that the roach's ability to digest cellulose was actually due to the cellulases of the symbiotic flagellates. This work formed his PhD t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Trager
William Trager (20 March 1910 – 22 January 2005) was an American parasitologist, professor at Rockefeller University, and member of the National Academy of Sciences of the United States. Trager's research focused on developing microbiological culture systems for a variety of eukaryotic pathogens. He is best known for developing a culture system for the malaria parasite ''Plasmodium falciparum'' with James Jensen in the 1970s. Early life and education William Trager was born March 20, 1910, in Newark, New Jersey to Leon and Anna (Emilfork) Trager. He received his Bachelor of Science degree from Rutgers University in 1930. He then moved to Harvard University where he was the first graduate student of L. R. Cleveland. In Cleveland's lab, Trager established a culture system for flagellate symbionts of the roach ''Cryptocercus punctulatus'', showing that the roach's ability to digest cellulose was actually due to the cellulases of the symbiotic flagellates. This work formed his PhD t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Army Sanitary Corps
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blood Vessel
The blood vessels are the components of the circulatory system that transport blood throughout the human body. These vessels transport blood cells, nutrients, and oxygen to the tissues of the body. They also take waste and carbon dioxide away from the tissues. Blood vessels are needed to sustain life, because all of the body's tissues rely on their functionality. There are five types of blood vessels: the arteries, which carry the blood away from the heart; the arterioles; the capillaries, where the exchange of water and chemicals between the blood and the tissues occurs; the venules; and the veins, which carry blood from the capillaries back towards the heart. The word ''vascular'', meaning relating to the blood vessels, is derived from the Latin ''vas'', meaning vessel. Some structures – such as cartilage, the epithelium, and the lens and cornea of the eye – do not contain blood vessels and are labeled ''avascular''. Etymology * artery: late Middle English; from Latin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasmodium Falciparum
''Plasmodium falciparum'' is a Unicellular organism, unicellular protozoan parasite of humans, and the deadliest species of ''Plasmodium'' that causes malaria in humans. The parasite is transmitted through the bite of a female ''Anopheles'' mosquito and causes the disease's most dangerous form, falciparum malaria. It is responsible for around 50% of all malaria cases. ''P. falciparum'' is therefore regarded as the deadliest parasite in humans. It is also associated with the development of blood cancer (Burkitt's lymphoma) and is classified as a List of IARC Group 2A carcinogens, Group 2A (probable) carcinogen. The species originated from the malarial parasite ''Laverania'' found in gorillas, around 10,000 years ago. Alphonse Laveran was the first to identify the parasite in 1880, and named it ''Oscillaria malariae''. Ronald Ross discovered its transmission by mosquito in 1897. Giovanni Battista Grassi elucidated the complete transmission from a female Anopheles, anopheline mosquit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllis Bradbury
Phyllis is a feminine given name which may refer to: People * Phyllis Bartholomew (1914–2002), English long jumper * Phyllis Drummond Bethune (née Sharpe, 1899–1982), New Zealand artist * Phyllis Calvert (1915–2002), British actress * Phyllis M. Christian (born 1956), Ghanaian lawyer and consultant * Phyllis Coates (born 1927), American actress * Phyllis Diller (1917–2012), American actress/comedian * Phyllis Dillon (1944–2004), Jamaican rocksteady and reggae singer * Phyllis Eisenstein (1946–2020), American writer * Phyllis Gotlieb (1926–2009), Canadian writer * Phyllis Hyman (1949–1995), American jazz singer * Phylis Lee Isley, birth name of Jennifer Jones (1919–2009), American film actress * P. D. James (1920–2014), English crime fiction writer * Phyllis Logan (born 1956), Scottish actress * Phyllis Newman (1933–2019), American actress * Phyllis Pearsall (1906–1996), British creator of the ''A to Z'' map of London * Phyllis Quek (born 1973), M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digestive Vacuole
The food vacuole, or digestive vacuole, is an organelle found in simple eukaryotes such as protists. This organelle is essentially a lysosome. During the stage of the symbiont parasites' lifecycle where it resides within a human (or other mammalian) red blood cell, it is the site of haemoglobin digestion and the formation of the large haemozoin crystals that can be seen under a light microscope. See also * Protists * Eukaryote Eukaryotes () are organisms whose cells have a nucleus. All animals, plants, fungi, and many unicellular organisms, are Eukaryotes. They belong to the group of organisms Eukaryota or Eukarya, which is one of the three domains of life. Bacte ... * Amoeba * Lysosome * Enzymes * Euglenids * Paramecia References Malaria {{Eukaryote-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemozoin
Haemozoin is a disposal product formed from the digestion of blood by some blood-feeding parasites. These hematophagous organisms such as malaria parasites (''Plasmodium spp.''), ''Rhodnius'' and ''Schistosoma'' digest haemoglobin and release high quantities of free heme, which is the protein component of haemoglobin. Heme is a prosthetic group consisting of an iron atom contained in the center of a heterocyclic porphyrin ring. Free heme is toxic to cells, so the parasites convert it into an insoluble crystalline form called hemozoin. In malaria parasites, hemozoin is often called ''malaria pigment''. Since the formation of hemozoin is essential to the survival of these parasites, it is an attractive target for developing drugs and is much-studied in ''Plasmodium'' as a way to find drugs to treat malaria (malaria's Achilles' heel). Several currently used antimalarial drugs, such as chloroquine and mefloquine, are thought to kill malaria parasites by inhibiting haemozoin biocrystal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phagocytosis
Phagocytosis () is the process by which a cell uses its plasma membrane to engulf a large particle (≥ 0.5 μm), giving rise to an internal compartment called the phagosome. It is one type of endocytosis. A cell that performs phagocytosis is called a phagocyte. In a multicellular organism's immune system, phagocytosis is a major mechanism used to remove pathogens and cell debris. The ingested material is then digested in the phagosome. Bacteria, dead tissue cells, and small mineral particles are all examples of objects that may be phagocytized. Some protozoa use phagocytosis as means to obtain nutrients. History Phagocytosis was first noted by Canadian physician William Osler (1876), and later studied and named by Élie Metchnikoff (1880, 1883). In immune system Phagocytosis is one main mechanisms of the innate immune defense. It is one of the first processes responding to infection, and is also one of the initiating branches of an adaptive immune response. Although mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytosol
The cytosol, also known as cytoplasmic matrix or groundplasm, is one of the liquids found inside cells (intracellular fluid (ICF)). It is separated into compartments by membranes. For example, the mitochondrial matrix separates the mitochondrion into many compartments. In the eukaryotic cell, the cytosol is surrounded by the cell membrane and is part of the cytoplasm, which also comprises the mitochondria, plastids, and other organelles (but not their internal fluids and structures); the cell nucleus is separate. The cytosol is thus a liquid matrix around the organelles. In prokaryotes, most of the chemical reactions of metabolism take place in the cytosol, while a few take place in membranes or in the periplasmic space. In eukaryotes, while many metabolic pathways still occur in the cytosol, others take place within organelles. The cytosol is a complex mixture of substances dissolved in water. Although water forms the large majority of the cytosol, its structure and prope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maria Rudzinska
Maria may refer to: People * Mary, mother of Jesus * Maria (given name), a popular given name in many languages Place names Extraterrestrial *170 Maria, a Main belt S-type asteroid discovered in 1877 * Lunar maria (plural of ''mare''), large, dark basaltic plains on Earth's Moon Terrestrial * Maria, Maevatanana, Madagascar * Maria, Quebec, Canada *Maria, Siquijor, the Philippines *María, Spain María is a municipality of Almería province, in the autonomous community of Andalusia Andalusia (, ; es, Andalucía ) is the southernmost autonomous community in Peninsular Spain. It is the most populous and the second-largest autonomous c ..., in Andalusia *Îles Maria, French Polynesia *María de Huerva, Aragon, Spain *Villa Maria (other) Arts, entertainment, and media Films *Maria (1947 film), ''Maria'' (1947 film), Swedish film *Maria (1975 film), ''Maria'' (1975 film), Swedish film *Maria (2003 film), ''Maria'' (2003 film), Romanian film *Maria (2019 film), ''Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electron Microscopy
An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, electron microscopes have a higher resolving power than light microscopes and can reveal the structure of smaller objects. A scanning transmission electron microscope has achieved better than 50 pm resolution in annular dark-field imaging mode and magnifications of up to about 10,000,000× whereas most light microscopes are limited by diffraction to about 200 nm resolution and useful magnifications below 2000×. Electron microscopes use shaped magnetic fields to form electron optical lens systems that are analogous to the glass lenses of an optical light microscope. Electron microscopes are used to investigate the ultrastructure of a wide range of biological and inorganic specimens including microorganisms, cells, large molecules, biopsy samples, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the List of United States cities by population density, most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York (state), New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban area, urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous Megacity, megacities, and over 58 million people live within of the city. New York City is a global city, global Culture of New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
