Botany, plant science(s), or plant biology is a branch of biology that involves the scientific study of plant life. Botany covers a wide range of scientific disciplines including structure, growth, reproduction, metabolism, development, diseases, chemical properties, and evolutionary relationships among taxonomic groups. Botany began with early human efforts to identify edible, medicinal and poisonous plants, making it one of the oldest sciences. Today botanists study over 550,000 species of living organisms.
The term "botany" comes from Greek βοτάνη, meaning "pasture, grass, fodder", perhaps via the idea of a livestock keeper needing to know which plants are safe for livestock to eat.
Historically all living things were grouped as animals or plants, and botany covered all organisms not considered animals. Some organisms included in the field of botany are no longer considered to belong to the plant kingdom – these include bacteria (studied in bacteriology), fungi (mycology) including lichen-forming fungi (lichenology), non-chlorophyte algae (phycology) and viruses (virology). However, attention is still given to these groups by botanists, and fungi (including lichens), and photosynthetic protists are usually covered in introductory botany courses.
The study of plants is vital because they are a fundamental part of life on Earth, which generates the oxygen, food, fibres, fuel and medicine that allow humans and other life forms to exist. Through photosynthesis, plants absorb carbon dioxide, a greenhouse gas that in large amounts can affect global climate. Additionally, they prevent soil erosion and are influential in the water cycle. A good understanding of plants is crucial to the future of human societies as it allows us to:
Paleobotanists study ancient plants in the fossil record. It is believed that early in the Earth's history, the evolution of photosynthetic plants altered the global atmosphere of the earth, changing the ancient atmosphere by oxidation.
Virtually all foods eaten come from plants, either directly from staple foods and other fruit and vegetables, or indirectly through livestock or other animals, which rely on plants for their nutrition. Plants are the fundamental base of nearly all food chains because they use the energy from the sun and nutrients from the soil and atmosphere, converting them into a form that can be consumed and utilized by animals; this is what ecologists call the first trophic level. Botanists also study how plants produce food we can eat and how to increase yields and therefore their work is important in mankind's ability to feed the world and provide food security for future generations, for example, through plant breeding. Botanists also study weeds, plants which are considered to be a nuisance in a particular location. Weeds are a considerable problem in agriculture, and botany provides some of the basic science used to understand how to minimize 'weed' impact in agriculture and native ecosystems. Ethnobotany is the study of the relationships between plants and people, and when this kind of study is turned to the investigation of plant-people relationships in past times, it is referred to as archaeobotany or paleoethnobotany.
Plants also provide us with many natural materials, such as hemp, cotton, wood, paper, linen, vegetable oils, some types of rope, and rubber. The production of silk would not be possible without the cultivation of the mulberry plant. Sugarcane, rapeseed, soy and other plants with a highly fermentable sugar or oil content have recently been put to use as sources of biofuels, which are important alternatives to fossil fuels (see biodiesel).
In many different ways, plants can act a little like the 'miners' canary', an early warning system alerting us to important changes in our environment. In addition to these practical and scientific reasons, plants are extremely valuable as recreation for millions of people who enjoy gardening, horticultural and culinary uses of plants every day.
The Greco-Roman world produced a number of botanical works including the Historia Plantarum and De Materia Medica.
Works from the medieval Muslim world included Ibn Wahshiyya's Nabatean Agriculture, Abū Ḥanīfa Dīnawarī's (828-896) the ''Book of Plants'', and Ibn Bassal's ''The Classification of Soils''. In the early 13th century, Abu al-Abbas al-Nabati, and Ibn al-Baitar (d. 1248) also wrote on botany.
Valerius Cordus (1515–1554) authored a pharmacopoeia of lasting importance, the ''Dispensatorium'' in 1546. As early as the 16th century, the Italian Ulisse Aldrovandi was scientifically researching plants. In 1665, using an early microscope, Robert Hooke discovered cells in cork, and a short time later in living plant tissue. The Germans Jacob Theodor Klein and Leonhart Fuchs, the Swiss Conrad von Gesner, and the British author Nicholas Culpeper published herbals covering the medicinal uses of plants.
During the 18th century, systems of classification became deliberately artificial and served only for the purpose of identification. These classifications are comparable to diagnostic keys, where taxa are artificially grouped in pairs by few, easily recognisable characters. The sequence of the taxa in keys is often totally unrelated to their natural or phyletic groupings. In the 18th century an increasing number of new plants had arrived in Europe, from newly discovered countries and the European colonies worldwide, and a larger amount of plants became available for study.
In 1754 Carl von Linné (Carl Linnaeus) divided the plant Kingdom into 25 classes. One, the ''Cryptogamia'', included all plants with concealed reproductive parts (mosses, liverworts and ferns), and algae and fungi.
The increased knowledge on anatomy, morphology and life cycles, lead to the realization that there were more natural affinities between plants, than the sexual system of Linnaeus indicated. Adanson (1763), de Jussieu (1789), and Candolle (1819) all proposed various alternative natural systems that were widely followed. The ideas of natural selection as a mechanism for evolution required adaptations to the Candollean system, which started the studies on evolutionary relationships and phylogenetic classifications of plants.
Botany was greatly stimulated by the appearance of the first “modern” text book, Matthias Schleiden's '''', published in English in 1849 as ''Principles of Scientific Botany''. Carl Willdenow examined the connection between seed dispersal and distribution, the nature of plant associations and the impact of geological history. The cell nucleus was discovered by Robert Brown in 1831.
In 1998 the Angiosperm Phylogeny Group published a phylogeny of flowering plants based on an analysis of DNA sequences from most families of flowering plants. As a result of this work, major questions such as which families represent the earliest branches in the genealogy of angiosperms are now understood. Investigating how plant species are related to each other allows botanists to better understand the process of evolution in plants.
;Environmental botany
;Plant physiology
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This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
Coordinates | 51°38′″N19°28′″N |
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name | André Rieu |
background | non_vocal_instrumentalist |
birth name | André Léon Marie Nicolas Rieu |
birth date | October 01, 1949 |
origin | Maastricht, Holland |
instrument | Violin |
genre | Waltz |
occupation | Conductor, violinist |
years active | 1978–present |
label | Denon Records , Philips |
website | www.andrerieu.com |
notable instruments | Stradivarius violin (1667) }} |
André Léon Marie Nicolas Rieu (born 1 October 1949) is a Dutch violinist, conductor, and composer best known for creating the waltz-playing Johann Strauss Orchestra.
In April 2009 (Australia)/June 2009 (UK), he made a cameo appearance as himself on "Ramsay Street" in the long-running Australian soap opera ''Neighbours''.
The Orchestra began in 1987 with 12 members but now performs with between 40 and 50 musicians. At the time the Orchestra first toured Europe, there emerged a renewed interest in waltz music. The revival began in the Netherlands and was ignited by their recording of the ''Second Waltz'' from Shostakovich's ''Jazz Suites''. As a result, Rieu became known as the waltz King.
Rieu and his orchestra have performed throughout Europe, in North America, and Japan. Winning a number of awards including two World Music Awards, their recordings have gone gold and platinum in many countries, including 8-times Platinum in the Netherlands. In September 2007 Rieu performed in Australia for the first time solo, without his Orchestra at the Eastland shopping centre in the Melbourne suburb of Ringwood playing "My Way" and "Waltzing Matilda"—and the next day appeared at Sydney's Arena Cove, Warringah Mashopping with the same set. Rieu and orchestra returned to Australia in November as part of his world tour. Rieu and his orchestra played 3 concerts at Melbourne's Telstra Dome from 13–15 November and continued their tour throughout Perth, Sydney, Brisbane and Adelaide, through to December 2008. The concert theme is 'A Romantic Vienna Night' and the set comprises a life-size reproduction of the Viennese imperial Schönbrunn Palace, complete with 2 ice-skating rinks, 2 Fountains, and a ballroom dance floor situated above and behind the Orchestra. Rieu's largest concert attendance to date in Australia was 38,000 on Saturday 15 November in Melbourne. The Perth concert did not feature the replica of the Viennese Palace as it was stated in the press because it would not fit into the front doors of Subiaco Oval.
He records both DVD and CD repertoire at his own recording studios in Maastricht in a wide range of classical music as well as popular and folk music plus music from well-known soundtracks and musical theatre. His lively orchestral presentations, in tandem with incessant marketing, have attracted worldwide audiences to this subgenre of classical music.
Some of his orchestra's performances have been broadcast in the United Kingdom and the United States on the PBS television network such as the 2003 airing of ''Andre Rieu Live in Dublin'', filmed in Dublin, Ireland, and 2005's ''André Rieu Live in Tuscany'' filmed in the Piazza Della Repubblica in the village of Cortona in Tuscany.
Eamon Kelly writing in ''The Australian'' newspaper, in an article that discusses the controversy that Rieu engenders, said: "He depicts his critics as members of a stuffy musical elite with narrow aesthetic tastes, yet regularly demeans in interviews music that is not to his taste and classical musicians who choose not to perform in his manner."
Of Rieu's popularity and the debate in the media over criticism of him, Eamon Kelly says:
It is disappointing to see professional journalists indulging in cheap, inaccurate stereotypes to dismiss criticism of Rieu.
But he goes on to add:
Equally misguided are those who cursorily dismiss Rieu. Rieu's live and recorded performances have brought joy to millions of people. Few in his audiences are regular classical music attendees and it could be seen as promising that, via Rieu, they are listening to standards of the classical canon. The fact that Rieu's focus is on highly accessible, enjoyable repertoire is not an argument against his musical credentials.
Eamon Kelly further adds, after hearing the orchestra perform, that there is "no cause" for Rieu's boast his orchestra was "superior to the many other orchestras that specialise in ... Viennese and popular classical repertoire." Additionally, he found that in musical terms "the performance did not surpass playing standards in Australia's major symphony orchestras". He did add that the "oboist, Arthur Cordewener, provided the most impressive musical performance with a sublime introduction to an otherwise unremarkable performance of [Ravel's] ''Boléro''."
David Templeton, writing in the magazine ''All Things Strings'' says:
Ironically, it is Rieu’s own success that has earned him a horse-drawn carriage full of criticism, a pot-shot laden backlash aimed chiefly at the calculated emotionalism and theatrical flourishes of his performances, which, according to many, only cheapen the classical-music experience. Classical radio stations avoid his music as they might avoid a leper in the mall, though—let’s just say it plain and clear—Rieu is a superb violinist.
Chris Boyd, a critic writing for Melbourne's ''Herald Sun'' newspaper, finds that he could not give a general criticism of the playing of Rieu, as, except for "a clean and lyrical solo in ''Waltzing Matilda''", his main stage function was apparently "blarney and delegation". However, Boyd also comments that the quality of the artists that Rieu works with is "extraordinary". Boyd assesses the low points of the concert as the "Three Tenors-style" rendition of "Nessun dorma" which he finds was an "abomination", while saying the concert's highlights included "a sugar-shock sweet rendition" of "O mio babbino caro" as well as Strauss's ''Emperor Waltz'' and ''Blue Danube'', Clarke's ''Trumpet Voluntary'' and the ''Boléro''.
== Selected discography ==
Category:1949 births Category:Living people Category:Dutch classical violinists Category:Dutch conductors (music) Category:Maastricht Academy of Music alumni Category:People from Maastricht Category:People of Huguenot descent Category:Chevaliers of the Ordre des Arts et des Lettres Category:Dutch people of French descent
ar:أندري ريو bg:Андре Рийо ca:André Rieu cs:André Rieu da:André Rieu de:André Rieu es:André Rieu fr:André Rieu hr:André Rieu it:André Rieu he:אנדרה ריו li:André Rieu hu:André Rieu nl:André Rieu ja:アンドレ・リュウ pl:André Rieu pt:André Rieu ru:Рьё, Андре sv:André Rieu war:André Rieu zh:安德烈·瑞欧This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
Coordinates | 51°38′″N19°28′″N |
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name | Botany Boyz |
background | group_or_band |
origin | Houston, Texas, United States |
genre | Gangsta rapChopped and Screwed |
years active | 1997–present |
label | Big Shot/Clover G Records |
associated acts | Lil' Flip, Screwed Up Click, Clover Geez |
current members | C-Note, Will-Lean, D-Red & B.G. Duke |
past members | B.G. Gator (deceased), Lil 3rd, Lil' Head, Pap-Pap, Big D-E-Z |
notable instruments | }} |
Botany Boyz are a rap crew from Houston, Texas, United States. They are the owners of the labels Big Shot Records and Plat-Num Productions.
Their first album, ''Thought of Many Ways'', was released on their own label, Big Shot Records, in 1997; its follow-up, ''Forever Botany'', was released in 1999 and managed to crack the Billboard Top R&B;/Hip-Hop charts at #99 in 2000 as the Houston rap scene became more popular across the US. Since then, the members have concentrated more on solo projects, with C-Note being the most successful.
The Botany Boyz were featured on the platinum selling Sittin' Fat Down South, with the single "Chop, Chop, Chop" produced by legendary southern producer Bruce "Grim" Rhodes.
This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
Coordinates | 51°38′″N19°28′″N |
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Name | Stephen G Perlman |
Birth date | |
Death date | |
Known for | Quicktime, WebTV |
Occupation | Electronic engineering and software inventor and entrepreneur |
Nationality | USA |
Alma mater | Columbia University }} |
Stephen G Perlman is an entrepreneur and inventor with over 80 patents in multimedia and communications technologies. He is a graduate of Columbia University.
In 1990, Perlman left Apple to join General Magic, where he designed its second-generation technology.
In 1994, Perlman co-founded Catapult Entertainment and was its Chief technical officer. Catapult developed the proprietary XBAND modems for the Sega Genesis and Super Nintendo Entertainment System video game consoles that enabled online features for multiplayer games.
In 1995, Perlman created, co-founded, and was the President & CEO of WebTV Networks, Inc. WebTV was introduced in 1996, and was one the earliest products to connect the Internet to a television. Less than 2 years after it was founded, WebTV was acquired by Microsoft Corporation for US$503 million, and renamed as MSN TV. Microsoft’s acquisition of WebTV also brought with it the teams that created Microsoft’s TV platforms, including the hardware for Microsoft's Xbox 360.
In 1999, Perlman left WebTV Networks to found Rearden Steel, now Rearden, a business incubator for new companies in media and entertainment technology.
In 2000, Rearden founded Moxi Digital, Inc., which produced a combination digital video recorder, DVD player, digital music jukebox, and television set-top box. Moxi merged with Microsoft founder Paul Allen's Digeo in 2002.
In 2004, Rearden founded MOVA, which was spun off from Rearden in 2007 as an OnLive subsidiary. MOVA offers motion-capture services in the San Francisco Bay Area, with Perlman as its president. In 2006, Perlman unveiled Mova's Contour, a digital multi-camera system that captures and tracks detailed surface data and textures for post-production manipulation. It was used for 3D volumetric shape capture of Brad Pitt’s face in the film ''The Curious Case of Benjamin Button'', which received the 2008 Academy Award for Achievement in Visual Effects for the photorealism achieved in computer-generated reverse-aging of Brad Pitt’s face.
In 2007, Rearden spun-out OnLive, which in 2009 announced the OnLive on-demand video game service and MicroConsole TV adapter, with Perlman as its president and CEO.
In 2011, Perlman announced that he and colleagues at Rearden have invented distributed-input-distributed-output (DIDO) technology, an experimental wireless communications system that could render cellular connections obsolete. This new technology supposedly exceeds the limits on wireless communications described by the Shannon–Hartley theorem.
Category:American businesspeople Category:American engineers Category:Columbia Engineering alumni Category:Year of birth missing (living people) Category:Living people
ru:Перлман, СтивThis text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
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