|
Rothamsted Research
Rothamsted Research, previously known as the Rothamsted Experimental Station and then the Institute of Arable Crops Research, is one of the oldest agricultural research institutions in the world, having been founded in 1843. It is located at Harpenden in the English county of Hertfordshire and is a registered charity under English law. One of the station's best known and longest-running experiments is the Park Grass Experiment, a biological study that started in 1856 and has been continuously monitored ever since. History The Rothamsted Experimental Station was founded in 1843 by John Bennet Lawes, a noted Victorian era entrepreneur and scientist who had founded one of the first artificial fertilizer manufacturing factories in 1842, on his 16th-century estate, Rothamsted Manor, to investigate the impact of inorganic and organic fertilizers on crop yield. Lawes had Henry King conduct studies on the application of bone dust to turnip fields between 1836 and 1838. In 1840 he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rothamsted Research
Rothamsted Research, previously known as the Rothamsted Experimental Station and then the Institute of Arable Crops Research, is one of the oldest agricultural research institutions in the world, having been founded in 1843. It is located at Harpenden in the English county of Hertfordshire and is a registered charity under English law. One of the station's best known and longest-running experiments is the Park Grass Experiment, a biological study that started in 1856 and has been continuously monitored ever since. History The Rothamsted Experimental Station was founded in 1843 by John Bennet Lawes, a noted Victorian era entrepreneur and scientist who had founded one of the first artificial fertilizer manufacturing factories in 1842, on his 16th-century estate, Rothamsted Manor, to investigate the impact of inorganic and organic fertilizers on crop yield. Lawes had Henry King conduct studies on the application of bone dust to turnip fields between 1836 and 1838. In 1840 he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biochemistry
Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology and metabolism. Over the last decades of the 20th century, biochemistry has become successful at explaining living processes through these three disciplines. Almost all areas of the life sciences are being uncovered and developed through biochemical methodology and research. Voet (2005), p. 3. Biochemistry focuses on understanding the chemical basis which allows biological molecules to give rise to the processes that occur within living cells and between cells, Karp (2009), p. 2. in turn relating greatly to the understanding of tissues and organs, as well as organism structure and function.Miller (2012). p. 62. Biochemistry is closely related to molecular biology, which is the study of the molecular mechanisms of biological phenomena.Ast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virology
Virology is the scientific study of biological viruses. It is a subfield of microbiology that focuses on their detection, structure, classification and evolution, their methods of infection and exploitation of host cells for reproduction, their interaction with host organism physiology and immunity, the diseases they cause, the techniques to isolate and culture them, and their use in research and therapy. The identification of the causative agent of tobacco mosaic disease (TMV) as a novel pathogen by Martinus Beijerinck (1898) is now acknowledged as being the official beginning of the field of virology as a discipline distinct from bacteriology. He realized the source was neither a bacterial nor a fungal infection, but something completely different. Beijerinck used the word "virus" to describe the mysterious agent in his ' contagium vivum fluidum' ('contagious living fluid'). Rosalind Franklin proposed the full structure of the tobacco mosaic virus in 1955. Virology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrethroid
A pyrethroid is an organic compound similar to the natural pyrethrins, which are produced by the flowers of pyrethrums (''Chrysanthemum cinerariaefolium'' and '' C. coccineum''). Pyrethroids are used as commercial and household insecticides. In household concentrations pyrethroids are generally harmless to humans. However, pyrethroids are toxic to insects such as bees, dragonflies, mayflies, gadflies, and some other invertebrates, including those that constitute the base of aquatic and terrestrial food webs. Pyrethroids are toxic to aquatic organisms, especially fish.Pyrethroids fact sheet from the Illinois Department of Public Health. They have been shown to be an effective control measure for malaria outbreaks, through indoor applications. Mode of action Pyreth ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rothamsted Plaque , an English agricultural research institution, formerly known as Rothamsted Experimental Station.
{{disambig ...
Rothamsted may refer to: * Rothamsted Manor, a former manor near Harpenden in English county of Hertfordshire. * Rothamsted Park, a public park in Harpenden in English county of Hertfordshire. *Rothamsted Research Rothamsted Research, previously known as the Rothamsted Experimental Station and then the Institute of Arable Crops Research, is one of the oldest agricultural research institutions in the world, having been founded in 1843. It is located at Harp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Nelder
John Ashworth Nelder (8 October 1924 – 7 August 2010) was a British statistician known for his contributions to experimental design, analysis of variance, computational statistics, and statistical theory. Contributions Nelder's work was influential in statistics. While leading research at Rothamsted Experimental Station, Nelder developed and supervised the updating of the statistical software packages GLIM and GenStat: Both packages are flexible high-level programming languages that allow statisticians to formulate linear models concisely. GLIM influenced later environments for statistical computing such as S-PLUS and R. Both GLIM and GenStat have powerful facilities for the analysis of variance for block experiments, an area where Nelder made many contributions. In statistical theory, Nelder and Wedderburn proposed the generalized linear model. Generalized linear models were formulated by John Nelder and Robert Wedderburn as a way of unifying various other statist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Gemmell Cochran
William Gemmell Cochran (15 July 1909 – 29 March 1980) was a prominent statistician. He was born in Scotland but spent most of his life in the United States. Cochran studied mathematics at the University of Glasgow and the University of Cambridge. He worked at Rothamsted Experimental Station from 1934 to 1939, when he moved to the United States. There he helped establish several departments of statistics. His longest spell in any one university was at Harvard, which he joined in 1957 and from which he retired in 1976. Writings Cochran wrote many articles and books. His books became standard texts: * ''Experimental Designs'' (with Gertrude Mary Cox) 1950 * * ''Statistical Methods Applied to Experiments in Agriculture and Biology'' by George W. Snedecor George Waddel Snedecor (October 20, 1881 – February 15, 1974) was an American mathematician and statistician. He contributed to the foundations of analysis of variance, data analysis, experimental design, and statist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frank Yates
Frank Yates FRS (12 May 1902 – 17 June 1994) was one of the pioneers of 20th-century statistics. Biography Yates was born in Manchester, England, the eldest of five children (and only son) of seed merchant Percy Yates and his wife Edith. He attended Wadham House, a private school, before gaining a scholarship to Clifton College in 1916. In 1920 he obtained a scholarship at St John's College, Cambridge, and four years later graduated with a First Class Honours degree. He spent two years teaching mathematics to secondary school pupils at Malvern College before heading to Africa where he was mathematical advisor on the Gold Coast Survey. He returned to England due to ill health and met and married a chemist, Margaret Forsythe Marsden, the daughter of a civil servant. This marriage was dissolved in 1933 and he later married Prascovie (Pauline) Tchitchkine, previously the partner of Alexis Tchitchkine. After her death in 1976, he married Ruth Hunt, his long-time secretary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Wishart (statistician)
John Wishart (28 November 1898 – 14 July 1956) was a Scottish mathematician and agricultural statistician. He gave his name to the Wishart distribution in statistics. Life Wishart was born in Perth, Scotland on 28 November 1898, the son of Elizabeth and John Wishart of Montrose. His father was a bootmaker. The family moved from Montrose to Perth around 1903, living at 36 Robertsons Buildings on Barrack Street. He was educated at Perth Academy. In the First World War he was conscripted into the Black Watch in 1917 and served two years in France. He studied Mathematics at Edinburgh University under Edmund Taylor Whittaker, graduating MA BSc before winning a place at Cambridge University where he gained a further MA. He then gained a doctorate (DSc) at the University College London under Karl Pearson. After a year of teacher training at Moray College of Education in Edinburgh he then worked for some years as a Mathematics Teacher at West Leeds High School. In 1927 he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Oscar Irwin
Joseph Oscar Irwin (17 December 1898 – 27 July 1982) was a British statistician who advanced the use of statistical methods in biological assay and other fields of laboratory medicine. Irwin's grasp of modern mathematical statistics distinguished him not only from older medical statisticians like Major Greenwood but contemporaries like Austin Bradford Hill. Biography Oscar Irwin was born in London. He attended the City of London School where he specialised in classics and then at a late date in mathematics. In December 1917 he won a scholarship to Christ's College, Cambridge to read mathematics. A serious illness disqualified him from war service but he spent a year computing anti-aircraft trajectories for Karl Pearson. When Irwin graduated from Cambridge in 1921 he joined Pearson's department of applied statistics which had returned to its normal activities. Irwin published his first work there, including his 1927 paper on the distribution of means. In 1928 Irwin moved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetics
Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene. Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism (e.g. dominance), and within the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Statistics
Statistics (from German: '' Statistik'', "description of a state, a country") is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. In applying statistics to a scientific, industrial, or social problem, it is conventional to begin with a statistical population or a statistical model to be studied. Populations can be diverse groups of people or objects such as "all people living in a country" or "every atom composing a crystal". Statistics deals with every aspect of data, including the planning of data collection in terms of the design of surveys and experiments.Dodge, Y. (2006) ''The Oxford Dictionary of Statistical Terms'', Oxford University Press. When census data cannot be collected, statisticians collect data by developing specific experiment designs and survey samples. Representative sampling assures that inferences and conclusions can reasonably extend from the sample to the population as a whole. An ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
