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Takuma Tanada
Takuma Akuma Tanada (October 30, 1919 – January 4, 2018) was an American plant biologist who made several discoveries related to the effects of light radiation on plants, including his discovery of the Tanada effect. He conducted research at the United States Department of Agriculture and in 2011 was awarded a Congressional Gold Medal, the highest civilian award in the United States, for his assistance to the U.S. military in World War II. Tanada's was born in Hawaii in 1919 to Japanese immigrants. Tanada attended the University of Hawaii studying Botany, and received a B.S. in 1942, and a M.S. in 1944. Tanada and his brother Shigeo volunteered for the Army. Tanada said he was rejected when he initially tried to join the military after the attack on Pearl Harbor, but was drafted later in part due to being fluent in Japanese. He enlisted on June 21, 1944. He translated top-secret Japanese communications for the Military Intelligence Service and was promoted to technical sergea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botany
Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek word (''botanē'') meaning " pasture", " herbs" "grass", or " fodder"; is in turn derived from (), "to feed" or "to graze". Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress. Nowadays, botanists (in the strict sense) study approximately 410,000 species of land plants of which some 391,000 species are vascular plants (including approximately 369,000 species of flowering plants), and approximately 20,000 are bryophytes. Botany originated in prehistory as herbalism with the efforts of early humans to identify – and later cultivate – ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photomorphogenesis
In developmental biology, photomorphogenesis is light-mediated development, where plant growth patterns respond to the light spectrum. This is a completely separate process from photosynthesis where light is used as a source of energy. Phytochromes, cryptochromes, and phototropins are photochromic sensory receptors that restrict the photomorphogenic effect of light to the UV-A, UV-B, blue, and red portions of the electromagnetic spectrum. The photomorphogenesis of plants is often studied by using tightly frequency-controlled light sources to grow the plants. There are at least three stages of plant development where photomorphogenesis occurs: seed germination, seedling development, and the switch from the vegetative to the flowering stage (photoperiodism). Most research on photomorphogenesis is derived from plants studies involving several kingdoms: Fungi, Monera, Protista, and Plantae. History Theophrastus of Eresus (371 to 287 BC) may have been the first to write about phot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaii
Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state geographically located within the tropics. Hawaii comprises nearly the entire Hawaiian archipelago, 137 volcanic islands spanning that are physiographically and ethnologically part of the Polynesian subregion of Oceania. The state's ocean coastline is consequently the fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Kauai, Oahu, Molokai, Lānai, Kahoolawe, Maui, and Hawaii—the last of these, after which the state is named, is often called the "Big Island" or "Hawaii Island" to avoid confusion with the state or archipelago. The uninhabited Northwestern Hawaiian Islands make up most of the Papahānaumokuākea Marine National Monument, the United States' largest protected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territories of the United States by population, most populous U.S. state and the List of U.S. states and territories by area, 3rd largest by area. It is also the most populated Administrative division, subnational entity in North America and the 34th most populous in the world. The Greater Los Angeles area and the San Francisco Bay Area are the nation's second and fifth most populous Statistical area (United States), urban regions respectively, with the former having more than 18.7million residents and the latter having over 9.6million. Sacramento, California, Sacramento is the state's capital, while Los Angeles is the List of largest California cities by population, most populous city in the state and the List of United States cities by population, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanada Effect
The Tanada effect refers to the adhesion of root tips to glass surfaces. It is believed to involve electric potentials. It is named for the scientist who first described the effect, Takuma Tanada. The phenomenon was observed while Dr. Tanada was rinsing glassware and noticed that excised root tips occasionally stuck to pyrex beakers. Upon investigating the phenomenon closely he determined that this process could be studied in a mixture of ATP, ascorbate, auxin, magnesium, manganese and potassium. The tips would stick when the beaker was swirled slowly. Most importantly, the reaction was light-dependent. Exposure to red light would cause the tips to stick, while exposure to far-red would allow them to release. This simple experiment was indicative of phytochrome function, and the rapid nature of the response suggested that changes in bioelectric potential were seminal events in phytochrome signal propagation. Root tips stick to glass surfaces because they acquire a positive ele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Agriculture
The United States Department of Agriculture (USDA) is the United States federal executive departments, federal executive department responsible for developing and executing federal laws related to farming, forestry, rural economic development, and food. It aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and production, works to assure food safety, protects natural resources, fosters rural communities and works to end hunger in the United States and internationally. It is headed by the United States Secretary of Agriculture, Secretary of Agriculture, who reports directly to the President of the United States and is a member of the president's Cabinet of the United States, Cabinet. The current secretary is Tom Vilsack, who has served since February 24, 2021. Approximately 80% of the USDA's $141 billion budget goes to the Food and Nutrition Service (FNS) program. The largest component of the FNS budget is the Supplementa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congressional Gold Medal
The Congressional Gold Medal is an award bestowed by the United States Congress. It is Congress's highest expression of national appreciation for distinguished achievements and contributions by individuals or institutions. The congressional practice of issuing gold medals to occasionally honor recipients from the military began during the American Revolution. Later the practice extended to individuals in all walks of life and in the late 20th century also to groups. The Congressional Gold Medal and the Presidential Medal of Freedom are the highest civilian awards in the United States. The congressional medal seeks to honor those, individually or as a group, "who have performed an achievement that has an impact on American history and culture that is likely to be recognized as a major achievement in the recipient's field long after the achievement." However, "There are no permanent statutory provisions specifically relating to the creation of Congressional Gold Medals. When a Congr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Intelligence Service (United States)
The Military Intelligence Service ( ja, アメリカ陸軍情報部, ''America Rikugun Jōhōbu'') was a World War II U.S. military unit consisting of two branches, the Japanese American unit (described here) and the German-Austrian unit based at Camp Ritchie, best known as the "Ritchie Boys". The unit described here was primarily composed of ''Nisei'' (second-generation Japanese Americans) who were trained as linguists. Graduates of the MIS language school (MISLS) were attached to other military units to provide translation, interpretation, and interrogation services. Major General Charles Willoughby said, “The ''Nisei'' shortened the Pacific War by two years and saved possibly a million American lives.” They served with the United States Army, Navy, and Marine Corps, as well as with British, Australian, New Zealand, Canadian, Chinese, and Indian combat units fighting the Japanese. History The U.S. Army long recognized the need for foreign language comprehension going b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technical Sergeant
Technical sergeant is the name of two current and two former enlisted ranks in the United States Armed Forces, as well as in the U.S. Civil Air Patrol. Outside the United States, it is used only by the Philippine Army, Philippine Air Force and the Philippine Marine Corps. Philippines The rank of technical sergeant is used by the Armed Forces of the Philippines. It is a non-commissioned officer rank used by Philippine Army, Philippine Air Force and Philippine Marine Corps (under the Philippine Navy). The rank stands above the rank of Staff sergeant and below Master sergeant. File:PHIL ARMY TSG WOODLAND.svg, File:PAF TSG SL.svg, File:PMC TSG Slv.svg, United States Technical sergeant is a rank in the United States Air Force, United States Space Force, and Civil Air Patrol. It is a former rank in the United States Army and United States Marine Corps. Army The rank of technical sergeant existed from after World War I until 1948 when the rank was renamed sergeant first class ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yokohama
is the second-largest city in Japan by population and the most populous municipality of Japan. It is the capital city and the most populous city in Kanagawa Prefecture, with a 2020 population of 3.8 million. It lies on Tokyo Bay, south of Tokyo, in the Kantō region of the main island of Honshu. Yokohama is also the major economic, cultural, and commercial hub of the Greater Tokyo Area along the Keihin region, Keihin Industrial Zone. Yokohama was one of the cities to open for trade with the Western world, West following the 1859 end of the Sakoku, policy of seclusion and has since been known as a cosmopolitan port city, after Kobe opened in 1853. Yokohama is the home of many Japan's firsts in the Meiji (era), Meiji period, including the first foreign trading port and Chinatown (1859), European-style sport venues (1860s), English-language newspaper (1861), confectionery and beer manufacturing (1865), daily newspaper (1870), gas-powered street lamps (1870s), railway station (1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1919 Births
Events January * January 1 ** The Czechoslovak Legions occupy much of the self-proclaimed "free city" of Pressburg (now Bratislava), enforcing its incorporation into the new republic of Czechoslovakia. ** HMY ''Iolaire'' sinks off the coast of the Hebrides; 201 people, mostly servicemen returning home to Lewis and Harris, are killed. * January 2– 22 – Russian Civil War: The Red Army's Caspian-Caucasian Front begins the Northern Caucasus Operation against the White Army, but fails to make progress. * January 3 – The Faisal–Weizmann Agreement is signed by Emir Faisal (representing the Arab Kingdom of Hejaz) and Zionist leader Chaim Weizmann, for Arab–Jewish cooperation in the development of a Jewish homeland in Palestine, and an Arab nation in a large part of the Middle East. * January 5 – In Germany: ** Spartacist uprising in Berlin: The Marxist Spartacus League, with the newly formed Communist Party of Germany and the Independent Social De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2018 Deaths
This is a list of deaths of notable people, organised by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked here. 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 See also * Lists of deaths by day The following pages, corresponding to the Gregorian calendar, list the historical events, births, deaths, and holidays and observances of the specified day of the year: Footnotes See also * Leap year * List of calendars * List of non-standard ... * Deaths by year {{DEFAULTSORT:deaths by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
