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N. Cholodny
Mykola Hryhorovych Kholodny (; 22 June 1882 – 4 May 1953) was an influential microbiologist who worked at the University of Kyiv, Ukraine in the USSR during the 1930s. He is known for the Cholodny–Went model, which he developed independently with Frits Warmolt Went of the California Institute of Technology. Despite being associated with the same theory, the two men never actually met. Cholodny worked in the A.V. Fomin Botanical Garden, attached to the University of Kyiv. He was one of the pioneers of the concept that microbes adhere to surfaces, using the technique of first placing glass slides in earth for a measured time period, then using a microscope to examine the slides. The Prokaryote ''Leptothrix cholodnii'' is named after him. In 1927 Cholodny proposed that the cells of the coleoptile are first polarized under the influence of uneven exposure to light, so growth hormone can diffuse more rapidly towards the side in the shade than in any other direction. Went reach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tambov
Tambov ( , ; rus, Тамбов, p=tɐmˈbof) is a types of inhabited localities in Russia, city and the administrative center of Tambov Oblast, Central Federal District, central Russia, at the confluence of the Tsna River (Moksha basin), Tsna and Studenets River, Studenets rivers, about south-southeast of Moscow. With a population of 261,803 as of 2021, Tambov is the largest city, and historical center, of the Tambov Oblast as a whole. Etymology The name "Tambov" originates from a Moksha language, Mokshan word (). Geography Urban layout In terms of its layout, Tambov was no different from other fortified cities – the Kremlin, the prison and a small settlement. The chosen place was in full compliance with the requirements of the fortification. From the north and east, the new fortress was washed by rivers, and from the west and south it was protected by artificial ditches filled with water by the Studenets River. The Kremlin was surrounded by a six-meter wooden wall with 12 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coleoptile
Coleoptile is the pointed protective sheath covering the emerging shoot in monocotyledons such as grasses in which few leaf primordia and shoot apex of monocot embryo remain enclosed. The coleoptile protects the first leaf as well as the growing stem in seedlings and eventually, allows the first leaf to emerge. Coleoptiles have two vascular bundles, one on either side. Unlike the flag leaves rolled up within, the pre-emergent coleoptile does not accumulate significant protochlorophyll or carotenoids, and so it is generally very pale. Some preemergent coleoptiles do, however, accumulate purple anthocyanin pigments. Coleoptiles consist of very similar cells that are all specialised to fast stretch growth. They do not divide, but increase in size as they accumulate more water. Coleoptiles also have water vessels (frequently two) along the axis to provide a water supply. When a coleoptile reaches the surface, it stops growing and the flag leaves penetrate its top, continuing to grow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Botanists
This list of Russian biologists includes the famous biologists from the Russian Federation, the Soviet Union, the Russian Empire and other predecessor states of Russia. Biologists of all specialities may be listed here, including ecologists, botanists, zoologists, paleontologists, biochemists, physiologists and others. Alphabetical list A *Johann Friedrich Adam, discoverer of the Adams mammoth, the first complete woolly mammoth skeleton * Igor Akimushkin, biologist *Vladimir Prokhorovich Amalitskii, paleontologist * Nicolai Andrusov, paleontologist *Andrey Avinoff, entomologist *Anatoly Andriyashev, ichthyologist, zoogeographist B *Karl Ernst von Baer, naturalist, founder of the Russian Entomological Society, formulated embryological Baer's laws *Alexander Barchenko, notable for his research of Hyperborea *Jacques von Bedriaga, prominent herpetologist, described Bedriaga's rock lizard and Bedriaga's skink *Andrey Belozersky, founder of molecular biology * Dmitry Belyayev, dom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Tambovsky Uyezd
The term "the people" refers to the public or common mass of people of a polity. As such it is a concept of human rights law, international law as well as constitutional law, particularly used for claims of popular sovereignty. In contrast, a people is any plurality of persons considered as a whole. Used in politics and law, the term "a people" refers to the collective or community of an ethnic group or nation. Concepts Legal Chapter One, Article One of the Charter of the United Nations states that "peoples" have the right to self-determination. Though the mere status as peoples and the right to self-determination, as for example in the case of Indigenous peoples (''peoples'', as in all groups of indigenous people, not merely all indigenous persons as in ''indigenous people''), does not automatically provide for independent sovereignty and therefore secession. Indeed, judge Ivor Jennings identified the inherent problems in the right of "peoples" to self-determination, as i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1953 Deaths
Events January * January 6 – The Asian Socialist Conference opens in Rangoon, Burma. * January 12 – Estonian émigrés found a Estonian government-in-exile, government-in-exile in Oslo. * January 14 ** Marshal Josip Broz Tito is chosen President of Socialist Federal Republic of Yugoslavia, Yugoslavia. ** The Central Intelligence Agency, CIA-sponsored Robertson Panel first meets to discuss the Unidentified flying object, UFO phenomenon. * January 15 ** Georg Dertinger, foreign minister of East Germany, is arrested for spying. ** British security forces in West Germany arrest 7 members of the Naumann Circle, a clandestine Neo-Nazi organization. * January 19 – 71.1% of all television sets in the United States are tuned into ''I Love Lucy'', to watch Lucy give birth to Little Ricky, which is more people than those who tune into Dwight Eisenhower's inauguration the next day. This record is never broken. * January 24 ** Mau Mau Uprising: Rebels in Kenya kill th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1882 Births
Events January * January 2 ** The Standard Oil Trust (business), Trust is secretly created in the United States to control multiple corporations set up by John D. Rockefeller and his associates. ** Irish-born author Oscar Wilde arrives in New York at the beginning of a lecture tour of the United States and Canada. * January 5 – Charles J. Guiteau is found guilty of the assassination of James A. Garfield (President of the United States) and sentenced to death, despite an insanity defense raised by his lawyer. * January 12 – Holborn Viaduct power station in the City of London, the world's first coal-fired public electricity generating station, begins operation. February * February 3 – American showman P. T. Barnum acquires the elephant Jumbo from the London Zoo. March * March 2 – Roderick Maclean fails in an attempt to assassinate Queen Victoria, at Windsor, Berkshire, Windsor. * March 18 (March 6 Old Style) – The Principality of Serbia becomes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Physiology (journal)
''Plant Physiology'' is a monthly peer-reviewed scientific journal that covers research on physiology, biochemistry, cellular and molecular biology, genetics, biophysics, and environmental biology of plants. The journal has been published since 1926 by the American Society of Plant Biologists. The current editor-in-chief is Yunde Zhao (University of California San Diego. According to the ''Journal Citation Reports'', the journal has a 2021 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 8.005. References External links * {{Authority control Botany journals Academic journals established in 1926 Monthly journals English-language journals Plant physiology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prokaryote
A prokaryote (; less commonly spelled procaryote) is a unicellular organism, single-celled organism whose cell (biology), cell lacks a cell nucleus, nucleus and other membrane-bound organelles. The word ''prokaryote'' comes from the Ancient Greek (), meaning 'before', and (), meaning 'nut' or 'kernel'. In the earlier two-empire system arising from the work of Édouard Chatton, prokaryotes were classified within the empire Prokaryota. However, in the three-domain system, based upon molecular phylogenetics, prokaryotes are divided into two domain (biology), domains: Bacteria and Archaea. A third domain, Eukaryote, Eukaryota, consists of organisms with nuclei. Prokaryotes evolution, evolved before eukaryotes, and lack nuclei, mitochondria, and most of the other distinct organelles that characterize the eukaryotic cell. Some unicellular prokaryotes, such as cyanobacteria, form colony (biology), colonies held together by biofilms, and large colonies can create multilayered microbial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian Empire
The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughly one-sixth of the world's landmass, making it the list of largest empires, third-largest empire in history, behind only the British Empire, British and Mongol Empire, Mongol empires. It also Russian colonization of North America, colonized Alaska between 1799 and 1867. The empire's 1897 census, the only one it conducted, found a population of 125.6 million with considerable ethnic, linguistic, religious, and socioeconomic diversity. From the 10th to 17th centuries, the Russians had been ruled by a noble class known as the boyars, above whom was the tsar, an absolute monarch. The groundwork of the Russian Empire was laid by Ivan III (), who greatly expanded his domain, established a centralized Russian national state, and secured inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Institute Of Technology
The California Institute of Technology (branded as Caltech) is a private research university in Pasadena, California, United States. The university is responsible for many modern scientific advancements and is among a small group of institutes of technology in the United States that are devoted to the instruction of pure and applied sciences. The institution was founded as a preparatory and vocational school by Amos G. Throop in 1891 and began attracting influential scientists such as George Ellery Hale, Arthur Amos Noyes, and Robert Andrews Millikan in the early 20th century. The vocational and preparatory schools were disbanded and spun off in 1910, and the college assumed its present name in 1920. In 1934, Caltech was elected to the Association of American Universities, and the antecedents of NASA's Jet Propulsion Laboratory, which Caltech continues to manage and operate, were established between 1936 and 1943 under Theodore von Kármán. Caltech has six academic divisi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frits Warmolt Went
Frits Warmolt Went (May 18, 1903 – May 1, 1990) was a Dutch biologist whose 1928 experiment demonstrated the existence of auxin in plants. Went's father was the prominent Dutch botanist Friedrich August Ferdinand Christian Went. After graduating from the University of Utrecht, The Netherlands in 1927 with a dissertation on the effects of the plant hormone auxin, Went then worked as a plant pathologist in the research labs of the Royal Botanical Garden in Buitenzorg, Dutch East Indies (now Bogor, Indonesia) from 1927 to 1933. He then took a position at the California Institute of Technology (Caltech) in Pasadena, California, first researching plant hormones. His interest gradually shifted to environmental influences on plant growth. At Caltech, he was among the first to demonstrate the importance of hormones in plant growth and development. He played an important role in the development of synthetic plant hormones, which then became the basis of much of the agricultural chem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
