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Feeder Of Lice
A louse-feeder was a job in interwar and Nazi-occupied Poland, at the '' Lviv Institute for Study of Typhus and Virology'' and the associated Institute in Kraków, Poland. Louse-feeders were human sources of blood for lice infected with typhus, which were then used to research possible vaccines against the disease. Research into a typhus vaccine was started in 1920 by parasitologist Rudolf Weigl. Weigl and his wife Zofia Weigl were some of the earliest lice feeders. During the Nazi occupation of the city, louse-feeding became the primary means of support and protection for many of the city's Polish intellectuals, including the mathematician Stefan Banach and the poet Zbigniew Herbert. While the profession carried a significant risk of infection, louse-feeders were given additional food rations, were protected from being shipped to slave labour camps and German concentration camps, and were permitted to move around the occupied city. Typhus research involving human subjects, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenol
Phenol (also called carbolic acid) is an aromatic organic compound with the molecular formula . It is a white crystalline solid that is volatile. The molecule consists of a phenyl group () bonded to a hydroxy group (). Mildly acidic, it requires careful handling because it can cause chemical burns. Phenol was first extracted from coal tar, but today is produced on a large scale (about 7 billion kg/year) from petroleum-derived feedstocks. It is an important industrial commodity as a precursor to many materials and useful compounds. It is primarily used to synthesize plastics and related materials. Phenol and its chemical derivatives are essential for production of polycarbonates, epoxies, Bakelite, nylon, detergents, herbicides such as phenoxy herbicides, and numerous pharmaceutical drugs. Properties Phenol is an organic compound appreciably soluble in water, with about 84.2 g dissolving in 1000 mL (0.895 M). Homogeneous mixtures of phenol and water at phenol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Body Lice
The body louse (''Pediculus humanus humanus'', also known as ''Pediculus humanus corporis'') is a hematophagic ectoparasite louse that infests humans. It is one of three lice which infest humans, the other two being the head louse, and the crab louse or pubic louse. Despite the name, body lice do not directly live on the host. They lay their eggs on fibres of clothing and only come into contact with the host whenever they need to feed. Since body lice cannot jump or fly, they spread by direct contact with another person or more rarely by contact with clothing or bed sheets that are infested. Body lice are disease vectors and can transmit pathogens that cause human diseases such as epidemic typhus, trench fever, and relapsing fever. In developed countries, infestations are only a problem in areas of poverty where there is poor body hygiene, crowded living conditions, and a lack of access to clean clothing. Outbreaks can also occur in situations where large groups of people ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rickettsia Rickettsii
''Rickettsia rickettsii'' (abbreviated as ''R. rickettsii'') is a gram-negative, intracellular, coccobacillus bacterium that is around 0.8 to 2.0 μm long. ''R. rickettsii'' is the causative agent of Rocky Mountain spotted fever. ''R. rickettsii'' is one of the most pathogenic ''Rickettsia'' strains. It affects a large majority of the Western Hemisphere and small portions of the Eastern Hemisphere. History Rocky Mountain spotted fever (RMSF) first emerged in the Idaho Valley in 1896. At that time, not much information was known about the disease; it was originally called Black Measles because patients had a characteristic spotted rash appearance throughout their body. The first clinical description of Rocky Mountain Spotted Fever was reported in 1899 by Edward E. Maxey. Howard Ricketts (1871–1910), an associate professor of pathology at the University of Chicago in 1902, was the first to identify and study ''R. rickettsii''. At this time, the trademark rash now began to slowl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and borders fourteen countries by land, the most of any country in the world, tied with Russia. Covering an area of approximately , it is the world's third largest country by total land area. The country consists of 22 provinces, five autonomous regions, four municipalities, and two Special Administrative Regions (Hong Kong and Macau). The national capital is Beijing, and the most populous city and financial center is Shanghai. Modern Chinese trace their origins to a cradle of civilization in the fertile basin of the Yellow River in the North China Plain. The semi-legendary Xia dynasty in the 21st century BCE and the well-attested Shang and Zhou dynasties developed a bureaucratic political system to serve hereditary monarchies, or dyna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute For Study Of Typhus And Virology
The Institute for Typhus and Virus Research was a scientific research centre founded in the city of Lwów, now known as Lviv. Between 1920 and 1939, it was part of Jan Kazimierz University's ''Biology Department''. Research into a typhus vaccine was started in 1920 by parasitologist Rudolf Weigl. Weigl developed the first widely-used typhus vaccine by using human louse-feeders. After the Nazi invasion of Poland and subsequent German occupation, the Institute became a Nazi laboratory tasked with increasing production of the typhus vaccine for the use of the German army. During the Nazi occupation of the city, louse-feeding became the primary means of support and protection for many of the city's Polish intellectuals, including the mathematician Stefan Banach and the poet Zbigniew Herbert. Louse-feeders were human sources of blood for lice infected with typhus, which were then used to research possible vaccines against the disease. While the profession carried a significant r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jan Kazimierz University
The University of Lviv ( uk, Львівський університет, Lvivskyi universytet; pl, Uniwersytet Lwowski; german: Universität Lemberg, briefly known as the ''Theresianum'' in the early 19th century), presently the Ivan Franko National University of Lviv ( uk, Львівський національний університет імені Івана Франка, Lvivskyi natsionalnyi universitet imeni Ivana Franka), is the oldest institution of higher learning in present-day Ukraine dating from 1661 when John II Casimir, List of Polish monarchs, King of Poland, granted it its first royal charter. Over the centuries, it has undergone various transformations, suspensions, and name changes that have reflected the geopolitical complexities of this part of Europe. The present institution can be dated to 1940. It is located in the historic city of Lviv in Lviv Oblast of Western Ukraine. History Polish–Lithuanian Commonwealth The university was founded on January ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Przemyśl
Przemyśl (; yi, פשעמישל, Pshemishl; uk, Перемишль, Peremyshl; german: Premissel) is a city in southeastern Poland with 58,721 inhabitants, as of December 2021. In 1999, it became part of the Subcarpathian Voivodeship; it was previously the capital of Przemyśl Voivodeship. Przemyśl owes its long and rich history to the advantages of its geographic location. The city lies in an area connecting mountains and lowlands known as the Przemyśl Gate (Brama Przemyska), with open lines of transportation, and fertile soil. It also lies on the navigable San River. Important trade routes that connect Central Europe from Przemyśl ensure the city's importance. The Old Town of Przemyśl is listed as a Historic Monument of Poland. Names Different names in various languages have identified the city throughout its history. Selected languages include: cz, Přemyšl; german: Premissel, Prömsel, Premslen; la, Premislia; uk, Перемишль (Peremyshlj) and (Pshemyslj); ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitology
Parasitology is the study of parasites, their hosts, and the relationship between them. As a biological discipline, the scope of parasitology is not determined by the organism or environment in question but by their way of life. This means it forms a synthesis of other disciplines, and draws on techniques from fields such as cell biology, bioinformatics, biochemistry, molecular biology, immunology, genetics, evolution and ecology. Fields The study of these diverse organisms means that the subject is often broken up into simpler, more focused units, which use common techniques, even if they are not studying the same organisms or diseases. Much research in parasitology falls somewhere between two or more of these definitions. In general, the study of prokaryotes falls under the field of bacteriology rather than parasitology. Medical The parasitologist F.E.G. Cox noted that "Humans are hosts to nearly 300 species of parasitic worms and over 70 species of protozoa, some derived f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in genocides within the Ottoman Empire and in the 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. Prior to 1914, the European great powers were divided between the Triple Entente (comprising France, Russia, and Britain) and the Triple Alliance (containing Germany, Austria-Hungary, and Italy). Tensions in the Balkans came to a head on 28 June 1914, following the assassination of Archduke Franz Ferdin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nobel Prize In Physiology And Medicine
The Nobel Prize in Physiology or Medicine is awarded yearly by the Nobel Assembly at the Karolinska Institute for outstanding discoveries in physiology or medicine. The Nobel Prize is not a single prize, but five separate prizes that, according to Alfred Nobel's 1895 will, are awarded "to those who, during the preceding year, have conferred the greatest benefit to humankind". Nobel Prizes are awarded in the fields of Physics, Chemistry, Physiology or Medicine, Literature, and Peace. The Nobel Prize is presented annually on the anniversary of Alfred Nobel's death, 10 December. As of 2022, 114 Nobel Prizes in Physiology or Medicine have been awarded to 226 laureates, 214 men and 12 women. The first one was awarded in 1901 to the German physiologist, Emil von Behring, for his work on serum therapy and the development of a vaccine against diphtheria. The first woman to receive the Nobel Prize in Physiology or Medicine, Gerty Cori, received it in 1947 for her role in elucidating the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
