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William Andrew Archer
William Andrew Archer (1894–1973) was an American economic botanist, ethnobotanist, taxonomist, plant explorer, and herbarium curator. He was born in Torreon, Mexico to American parents. Archer studied at New Mexico State College, earning his B.S. in biology, and completed a Ph.D. in botany and mycology at the University of Michigan in 1925. Most of his professional career was spent at United States Department of Agriculture (USDA), including his position as Curator of the United States National Arboretum Herbarium from 1938 to 1964. After his retirement from the USDA, Archer was appointed Research Associate in the Department of Botany, National Museum of Natural History (NMNH). His career was marked by extensive collecting trips to Central and South America and to Africa. He spoke English, Portuguese and Spanish. Hıs ashes were scattered in a woodland area in Prince George's County, Maryland. Biography Before attending school he served in the New Mexico Infantry from 1916 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycology
Mycology is the branch of biology concerned with the study of fungi, including their genetic and biochemical properties, their taxonomy and their use to humans, including as a source for tinder, traditional medicine, food, and entheogens, as well as their dangers, such as toxicity or infection. A biologist specializing in mycology is called a mycologist. Mycology branches into the field of phytopathology, the study of plant diseases, and the two disciplines remain closely related because the vast majority of plant pathogens are fungi. Overview Historically, mycology was a branch of botany because, although fungi are evolutionarily more closely related to animals than to plants, this was not recognized until a few decades ago. Pioneer mycologists included Elias Magnus Fries, Christian Hendrik Persoon, Anton de Bary, Elizabeth Eaton Morse, and Lewis David von Schweinitz. Beatrix Potter, author of ''The Tale of Peter Rabbit'', also made significant contributions to the fiel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbarium
A herbarium (plural: herbaria) is a collection of preserved plant specimens and associated data used for scientific study. The specimens may be whole plants or plant parts; these will usually be in dried form mounted on a sheet of paper (called ''exsiccatum'', plur. ''exsiccata'') but, depending upon the material, may also be stored in boxes or kept in alcohol or other preservative. The specimens in a herbarium are often used as reference material in describing plant taxa; some specimens may be types. The same term is often used in mycology to describe an equivalent collection of preserved fungi, otherwise known as a fungarium. A xylarium is a herbarium specialising in specimens of wood. The term hortorium (as in the Liberty Hyde Bailey Hortorium) has occasionally been applied to a herbarium specialising in preserving material of horticultural origin. History The making of herbaria is an ancient phenomenon, at least six centuries old, although the techniques have changed l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smithsonian Institution
The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums and education and research centers, the largest such complex in the world, created by the U.S. government "for the increase and diffusion of knowledge". Founded on August 10, 1846, it operates as a trust instrumentality and is not formally a part of any of the three branches of the federal government. The institution is named after its founding donor, British scientist James Smithson. It was originally organized as the United States National Museum, but that name ceased to exist administratively in 1967. Called "the nation's attic" for its eclectic holdings of 154 million items, the institution's 19 museums, 21 libraries, nine research centers, and zoo include historical and architectural landmarks, mostly located in the District of Columbia. Additional facilities are located in Maryland, New York, and Virginia. More than 200 institutions and museums in 45 states,States without Smithsonian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Sector
The public sector, also called the state sector, is the part of the economy composed of both public services and public enterprises. Public sectors include the public goods and governmental services such as the military, law enforcement, infrastructure, public transit, public education, along with health care and those working for the government itself, such as elected officials. The public sector might provide services that a non-payer cannot be excluded from (such as street lighting), services which benefit all of society rather than just the individual who uses the service. Public enterprises, or state-owned enterprises, are self-financing commercial enterprises that are under public ownership which provide various private goods and services for sale and usually operate on a commercial basis. Organizations that are not part of the public sector are either part of the private sector or voluntary sector. The private sector is composed of the economic sectors that are intende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belém
Belém (; Portuguese for Bethlehem; initially called Nossa Senhora de Belém do Grão-Pará, in English Our Lady of Bethlehem of Great Pará) often called Belém of Pará, is a Brazilian city, capital and largest city of the state of Pará in the country's north. It is the gateway to the Amazon River with a busy port, airport, and bus/coach station. Belém lies approximately 100 km upriver from the Atlantic Ocean, on the Pará River, which is part of the greater Amazon River system, separated from the larger part of the Amazon delta by ''Ilha de Marajó'' ( Marajo Island). With an estimated population of 1,499,641 people — or 2,491,052, considering its metropolitan area — it is the 11th most populous city in Brazil, as well as the 16th by economic relevance. It is the second largest in the North Region, second only to Manaus, in the state of Amazonas. Founded in 1616 by the Kingdom of Portugal, Belém was the first European colony on the Amazon but did not become ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beltsville, Maryland
Beltsville is a census-designated place (CDP) in northern Prince George's County, Maryland, United States. The community was named for Truman Belt, a local landowner. The 2020 census counted 20,133 residents. Beltsville includes the unincorporated community of Vansville. Geography Beltsville is located at (39.037509, −76.917847), adjacent to the Montgomery County – Prince George's County line. It is approximately northeast of the Maryland border with Washington. According to the United States Census Bureau, Beltsville has a total area of , of which is land and , or 0.38%, is water. Climate The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Beltsville has a humid subtropical climate, abbreviated "Cfa" on climate maps. Demographics 2020 census ''Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chili Con Carne
Chili con carne (also spelled chilli con carne or chile con carne and shortened to chili or chilli; ), meaning " chili with meat", is a spicy stew containing chili peppers (sometimes in the form of chili powder), meat (usually beef), tomatoes and often pinto beans or kidney beans. Other seasonings may include garlic, onions, and cumin. The dish originated in northern Mexico or southern Texas. Geographic and personal tastes involve different types of meat and other ingredients. Recipes provoke disputes among aficionados, some of whom insist that the word ''chili'' applies only to the basic dish, without beans and tomatoes. Chili con carne is a common dish for cook-offs, and may be used as a side, garnish, or ingredient in other dishes, such as soups or salsas. Origins and history In writings from 1529, the Franciscan friar Bernardino de Sahagún described chili pepper-seasoned stews being consumed in the Aztec capital, Tenochtitlan, now the location of Mexico City. The use of b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foggy Bottom
Foggy Bottom is one of the oldest late 18th- and 19th-century neighborhoods in Washington, D.C., located west of the White House and downtown Washington, in the Northwest quadrant. It is bounded roughly by 17th Street NW to the east, Rock Creek Parkway to the west, Constitution Avenue NW to the south, and Pennsylvania Avenue NW to the north. Foggy Bottom is thought to have received its name due to an atmospheric quirk of its low lying, marshy riverside location, which made it susceptible to concentrations of fog, and later, industrial smoke. The United States Department of State gained the metonym "Foggy Bottom" when it moved its headquarters to the nearby Harry S Truman Building, originally planned and constructed to be the new United States Department of War headquarters building, from the State, War, and Navy Building (now known as the Eisenhower Executive Office Building) near the White House in 1947.Alex Carmine. (2009.) ''Dan Brown's The Lost Symbol: The Ultimate Una ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Depression
The Great Depression (19291939) was an economic shock that impacted most countries across the world. It was a period of economic depression that became evident after a major fall in stock prices in the United States. The economic contagion began around September and led to the Wall Street stock market crash of October 24 (Black Thursday). It was the longest, deepest, and most widespread depression of the 20th century. Between 1929 and 1932, worldwide gross domestic product (GDP) fell by an estimated 15%. By comparison, worldwide GDP fell by less than 1% from 2008 to 2009 during the Great Recession. Some economies started to recover by the mid-1930s. However, in many countries, the negative effects of the Great Depression lasted until the beginning of World War II. Devastating effects were seen in both rich and poor countries with falling personal income, prices, tax revenues, and profits. International trade fell by more than 50%, unemployment in the U.S. rose to 23% and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithology
Ornithology is a branch of zoology that concerns the "methodological study and consequent knowledge of birds with all that relates to them." Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support. Studies on birds have helped develop key concepts in biology including evolution, behaviour and ecology such as the definition of species, the process of speciation, instinct, learning, ecological niches, guilds, island biogeography, phylogeography, and conservation. While early ornithology was principally concerned with descriptions and distributions of species, ornithologists today seek answers to very specific questions, often using birds as models to test hypotheses or predictions based on theories. Most modern biological theories apply across life forms, and the number of scientists w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomology
Entomology () is the science, scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arachnids, myriapods, and crustaceans. This wider meaning may still be encountered in informal use. Like several of the other fields that are categorized within zoology, entomology is a taxon-based category; any form of scientific study in which there is a focus on insect-related inquiries is, by definition, entomology. Entomology therefore overlaps with a cross-section of topics as diverse as molecular genetics, behavior, neuroscience, biomechanics, biochemistry, systematics, physiology, developmental biology, ecology, morphology (biology), morphology, and paleontology. Over 1.3 million insect species have been described, more than two-thirds of all known species. Some insect species date back to around 400 million years ago. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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