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Min Chueh Chang
Min Chueh Chang (, October 10, 1908 – June 5, 1991), often credited as M.C. Chang, was a Chinese-American reproductive biologist. His specific area of study was the fertilisation process in mammalian reproduction. Though his career produced findings that are important and valuable to many areas in the field of fertilisation, including his work on ''in vitro'' fertilisation which led to the first "test tube baby", he was best known to the world for his contribution to the development of the combined oral contraceptive pill at the Worcester Foundation for Experimental Biology. Education and private life Chang was born on October 10, 1908, in the village of Dunhòu (敦厚), which lies 64 miles (103 km) northwest of Taiyuan, the capital city of Shanxi province, in Qing dynasty China. His family was able to provide for him a good education, and in 1933, he obtained a bachelor's degree in animal psychology from Tsinghua University in Beijing. In 1938, Chang won a national c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lüliang
Lüliang or Lyuliang () is a prefecture-level city in the west of Shanxi province, People's Republic of China, bordering Shaanxi province across the Yellow River to the west, Jinzhong and the provincial capital of Taiyuan to the east, Linfen to the south, and Xinzhou to the north. It has a total area of and total population of 3,398,431 inhabitants according to the 2020 Chinese census, of whom 456,355 lived in the built-up (''or metro'') area made of Lishi District History In 2010 the city had a GDP growth rate at 21%; at the time prices for coal were high and the city had an active coal industry. There were plans to build a new business district in Lüliang, and the city's mayor had strongly pushed for the plan. In 2014 the GDP declined by 2%. By 2015 due to a slowing economy plans in that city stalled and many apartment blocks were left unoccupied. By 2015 the mayor lost his job due to corruption.Langfitt, Frank.A 'Sense Of Crisis' Now In A Chinese Boomtown Gone BustArchi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qing Dynasty
The Qing dynasty ( ), officially the Great Qing,, was a Manchu-led imperial dynasty of China and the last orthodox dynasty in Chinese history. It emerged from the Later Jin dynasty founded by the Jianzhou Jurchens, a Tungusic-speaking ethnic group who unified other Jurchen tribes to form a new "Manchu" ethnic identity. The dynasty was officially proclaimed in 1636 in Manchuria (modern-day Northeast China and Outer Manchuria). It seized control of Beijing in 1644, then later expanded its rule over the whole of China proper and Taiwan, and finally expanded into Inner Asia. The dynasty lasted until 1912 when it was overthrown in the Xinhai Revolution. In orthodox Chinese historiography, the Qing dynasty was preceded by the Ming dynasty and succeeded by the Republic of China. The multiethnic Qing dynasty lasted for almost three centuries and assembled the territorial base for modern China. It was the largest imperial dynasty in the history of China and in 1790 the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yale University
Yale University is a private research university in New Haven, Connecticut. Established in 1701 as the Collegiate School, it is the third-oldest institution of higher education in the United States and among the most prestigious in the world. It is a member of the Ivy League. Chartered by the Connecticut Colony, the Collegiate School was established in 1701 by clergy to educate Congregational ministers before moving to New Haven in 1716. Originally restricted to theology and sacred languages, the curriculum began to incorporate humanities and sciences by the time of the American Revolution. In the 19th century, the college expanded into graduate and professional instruction, awarding the first PhD in the United States in 1861 and organizing as a university in 1887. Yale's faculty and student populations grew after 1890 with rapid expansion of the physical campus and scientific research. Yale is organized into fourteen constituent schools: the original undergraduate col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isabelle Chin Chang
Isabel is a female name of Spanish origin. Isabelle is a name that is similar, but it is of French origin. It originates as the medieval Spanish form of '' Elisabeth'' (ultimately Hebrew ''Elisheva''), Arising in the 12th century, it became popular in England in the 13th century following the marriage of Isabella of Angoulême to the king of England. Today sometimes abbreviated to Isa. Etymology This set of names is a Spanish variant of the Hebrew name Elisheba through Latin and Greek represented in English and other western languages as Elisabeth.Albert Dauzat, ''Noms et prénoms de France'', Librairie Larousse 1980, édition revue et commentée par Marie-Thérèse Morlet, p. 337a.Chantal Tanet et Tristan Hordé, ''Dictionnaire des prénoms'', Larousse, Paris, 2009, p. 38 These names are derived from the Latin and Greek renderings of the Hebrew name based on both etymological and contextual evidence (the use of Isabel as a translation of the name of the mother of John the Bapti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American-born Chinese
American-born Chinese () (sometimes abbreviated as ABC) is a term widely used to refer to Chinese people that were born in the United States and received U.S. citizenship due to birthright citizenship in the United States. Contested usage In comparison to the term Chinese American, ''American-born Chinese'' may not always denote U.S. citizenship, (mainland) Chinese nationals that were born in the United States often renounce their U.S. citizenship due to China prohibiting its citizens from holding multiple citizenships. According to some, the term has perpetual foreigner connotations. It has been noted that the term differs from existing patterns of immigrant designation in American English. For example, Peter Thiel is considered a "German-born American," and Elon Musk is considered a "South African-born American." In both of these cases, the first demographic word refers to the person's citizenship at birth, and the second refers to his citizenship at present. However, in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Breeding
Animal breeding is a branch of animal science that addresses the evaluation (using best linear unbiased prediction and other methods) of the genetic value (estimated breeding value, EBV) of livestock. Selecting for breeding animals with superior EBV in growth rate, egg, meat, milk, or wool production, or with other desirable traits has revolutionized livestock production throughout the entire world. The scientific theory of animal breeding incorporates population genetics, quantitative genetics, statistics, and recently molecular genetics and is based on the pioneering work of Sewall Wright, Jay Lush, and Charles Roy Henderson, Charles Henderson. Breeding stock Breeding stock is a group of animals used for the purpose of planned breeding. When individuals are looking to breed animals, they look for certain valuable traits in purebred animals, or may intend to use some type of crossbreeding to produce a new type of stock with different, and presumably super abilities in a given area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Marshall (physiologist)
Francis Hugh Adam Marshall CBE FRS FRSE LLD (11 July 1878, High Wycombe – 5 February 1949, Cambridge) was a British physiologist who did pioneering early research into the physiology and endocrinology of biological reproduction. Early life and education Marshall was born in High Wycombe, Buckinghamshire, the son of Thomas Marshall and Mary née Lucas. He was educated at St Mark's School in Windsor then Southborough School in Tunbridge Wells. He studied at University College, London, and then at the University of Cambridge, graduating from Christ's College, Cambridge in 1900. He did further postgraduate studies at the University of Edinburgh gaining his first doctorate (DSc). Career and research Marshall's first position was a research assistant to James Cossar Ewart in Edinburgh, assisting Ewart's work on the now-discredited theory of telegony. He also began his research on reproduction, studying the reproductive cycle of sheep at Ewart's Penicuik farm; this work resulted in h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Hammond FRS
Sir John Hammond CBE FRS PhD (23 February 1889 – 25 August 1964), was a physiologist, agricultural research scientist, veterinarian known for his pioneering work in artificial insemination. He gives his name to the Sir John Hammond Memorial Prize. Background and education The son of Burrell Hammond, a farmer in Briston, Norfolk, Hammond was educated at Gresham's School and Downing College, Cambridge. He was named after his grandfather, another John Hammond, who was both a farmer and a veterinarian and one of the founders of the Red Poll herdbook in the 1870s. Career Hammond arrived at Downing as an undergraduate in 1907 and for most of his career was a Fellow of the college. He also headed the School of Physiology of Animal Reproduction of the University of Cambridge and was a founder of the Cambridge Animal Research Station. Hammond conducted classical studies on embryo survival in the early 1920s. His famous study ''Rate of Intra-uterine Growth'' (1938) showed that crossb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reproductive Biology
Reproductive biology includes both sexual and asexual reproduction. Reproductive biology includes a wide number of fields: * Reproductive systems * Endocrinology * Sexual development (Puberty) * Sexual maturity * Reproduction * Fertility Human reproductive biology Endocrinology Human reproductive biology is primarily controlled through hormones, which send signals to the human reproductive structures to influence growth and maturation. These hormones are secreted by endocrine glands, and spread to different tissues in the human body. In humans, the pituitary gland synthesizes hormones used to control the activity of endocrine glands. Reproductive systems Internal and external organs are included in the reproductive system. There are two reproductive systems including the male and female, which contain different organs from one another. These systems work together in order to produce offspring. Female reproductive system The female reproductive system includes the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spermatozoon
A spermatozoon (; also spelled spermatozoön; ; ) is a motile sperm cell, or moving form of the haploid cell that is the male gamete. A spermatozoon joins an ovum to form a zygote. (A zygote is a single cell, with a complete set of chromosomes, that normally develops into an embryo.) Sperm cells contribute approximately half of the nuclear genetic information to the diploid offspring (excluding, in most cases, mitochondrial DNA). In mammals, the sex of the offspring is determined by the sperm cell: a spermatozoon bearing an X chromosome will lead to a female (XX) offspring, while one bearing a Y chromosome will lead to a male (XY) offspring. Sperm cells were first observed in Antonie van Leeuwenhoek's laboratory in 1677. Mammalian spermatozoon structure, function, and size Humans The human sperm cell is the reproductive cell in males and will only survive in warm environments; once it leaves the male body the sperm's survival likelihood is reduced and it may die, thereby dec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur Walton
Arthur is a common male given name of Brythonic origin. Its popularity derives from it being the name of the legendary hero King Arthur. The etymology is disputed. It may derive from the Celtic ''Artos'' meaning “Bear”. Another theory, more widely believed, is that the name is derived from the Roman clan '' Artorius'' who lived in Roman Britain for centuries. A common spelling variant used in many Slavic, Romance, and Germanic languages is Artur. In Spanish and Italian it is Arturo. Etymology The earliest datable attestation of the name Arthur is in the early 9th century Welsh-Latin text ''Historia Brittonum'', where it refers to a circa 5th to 6th-century Briton general who fought against the invading Saxons, and who later gave rise to the famous King Arthur of medieval legend and literature. A possible earlier mention of the same man is to be found in the epic Welsh poem ''Y Gododdin'' by Aneirin, which some scholars assign to the late 6th century, though this is still a mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
