|
Harold Saxton Burr
Harold Saxton Burr (April 18, 1889 – February 17, 1973) was E. K. Hunt Professor of Anatomy at Yale University School of Medicine and researcher into bio-electrics. Early life He was born in Lowell, Massachusetts in 1889, to parents Hanford Burr and Clara Saxton. He studied in public schools and at the Technical High School in Springfield, Massachusetts. In 1908 he was admitted to the Sheffield Scientific School at Yale and received his Ph.B. in 1911. On December 27 of that year, in Chicago, he married Jean Chandler, with whom he had a son, Peter. In 1914 he was appointed Instructor in Anatomy at Yale. He studied for his Ph.D. under Ross Granville Harrison, which he received in 1915. He was a teacher at Yale until 1958, becoming an Assistant Professor in 1919, an Associate Professor in 1926, and Professor in 1929. Most of his later life was spent in New Haven. Academic career From 1916 to 1956, Burr published, either alone or with others, ninety-three scientific papers. E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lowell, Massachusetts
Lowell () is a city in Massachusetts, in the United States. Alongside Cambridge, It is one of two traditional seats of Middlesex County. With an estimated population of 115,554 in 2020, it was the fifth most populous city in Massachusetts as of the last census, and the third most populous in the Boston metropolitan statistical area. The city also is part of a smaller Massachusetts statistical area, called Greater Lowell, and of New England's Merrimack Valley region. Incorporated in 1826 to serve as a mill town, Lowell was named after Francis Cabot Lowell, a local figure in the Industrial Revolution. The city became known as the cradle of the American Industrial Revolution because of its textile mills and factories. Many of Lowell's historic manufacturing sites were later preserved by the National Park Service to create Lowell National Historical Park. During the Cambodian genocide (1975–1979), the city took in an influx of refugees, leading to a Cambodia Town and Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Menstruation
Menstruation (also known as a period, among other colloquial terms) is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. The menstrual cycle is characterized by the rise and fall of hormones. Menstruation is triggered by falling progesterone levels and is a sign that pregnancy has not occurred. The first period, a point in time known as menarche, usually begins between the ages of 12 and 15. Menstruation starting as young as 8 years would still be considered normal. The average age of the first period is generally later in the developing world, and earlier in the developed world. The typical length of time between the first day of one period and the first day of the next is 21 to 45 days in young women. In adults, the range is between 21 and 31 days with the average being 28 days. Bleeding usually lasts around 2 to 7 days. Periods stop during pregnancy and typically do not resume during the initial months of breastfeed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Neuroscientists
Many famous neuroscientists are from the 20th and 21st century, as neuroscience is a fairly new science. However many anatomists, physiologists, biologists, neurologists, psychiatrists and other physicians and psychologists are considered to be neuroscientists as well. This list compiles the names of all neuroscientists with a corresponding Wikipedia biographical article, and is not necessarily a reflection of their relative importance in the field. See also * History of neuroscience * List of cognitive neuroscientists * List of neurologists and neurosurgeons * List of women neuroscientists The following is a list of women neuroscientists by nationality – notable women who are well known for their work in the field of neuroscience. Argentina * Cecilia Bouzat (born 1961), biochemist studying neurological disorders * Maria G. Ca ... References {{Neuroscience Cognitive science lists History of neurology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyme Art Association
Lyme Art Association (LAA) is a non-profit art organization established in 1914, with roots going back to 1902. The organization maintains a historic art gallery located at 90 Lyme Street in the Old Lyme Historic District, Old Lyme, Connecticut. The gallery was built in 1922 to a design prepared by the well-known architect and artist Charles A. Platt. The Association holds exhibitions throughout the year, featuring the work of member artists as well as visiting ones, with an emphasis on representational art . The building has a north-light studio where the association conducts classes year-round. Origins The LAA is an outgrowth of the Old Lyme art colony, established by Henry Ward Ranger, a leading tonalist painter from New York. After visiting Old Lyme in 1899, Ranger returned the following year with like-minded tonalist painters. Boarding at the house of Florence Griswold, now the Florence Griswold Museum, they painted scenes of the local countryside. In the summer of 1902, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Bruestle
George may refer to: People * George (given name) * George (surname) * George (singer), American-Canadian singer George Nozuka, known by the mononym George * George Washington, First President of the United States * George W. Bush, 43rd President of the United States * George H. W. Bush, 41st President of the United States * George V, King of Great Britain, Ireland, the British Dominions and Emperor of India from 1910-1936 * George VI, King of Great Britain, Ireland, the British Dominions and Emperor of India from 1936-1952 * Prince George of Wales * George Papagheorghe also known as Jorge / GEØRGE * George, stage name of Giorgio Moroder * George Harrison, an English musician and singer-songwriter Places South Africa * George, Western Cape ** George Airport United States * George, Iowa * George, Missouri * George, Washington * George County, Mississippi * George Air Force Base, a former U.S. Air Force base located in California Characters * George (Peppa Pig), a 2-year-old pig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landscape
A landscape is the visible features of an area of land, its landforms, and how they integrate with natural or man-made features, often considered in terms of their aesthetic appeal.''New Oxford American Dictionary''. A landscape includes the physical elements of geophysically defined landforms such as (ice-capped) mountains, hills, water bodies such as rivers, lakes, ponds and the sea, living elements of land cover including indigenous vegetation, human elements including different forms of land use, buildings, and structures, and transitory elements such as lighting and weather conditions. Combining both their physical origins and the cultural overlay of human presence, often created over millennia, landscapes reflect a living synthesis of people and place that is vital to local and national identity. The character of a landscape helps define the self-image of the people who inhabit it and a sense of place that differentiates one region from other regions. It is the dyn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Waterways
British Waterways, often shortened to BW, was a statutory corporation wholly owned by the government of the United Kingdom. It served as the navigation authority for the majority of canals and a number of rivers and docks in England, Scotland and Wales. On 2 July 2012, all of British Waterways' assets and responsibilities in England and Wales were transferred to the newly founded charity the Canal & River Trust. In Scotland, British Waterways continues to operate as a standalone public corporation under the trading name Scottish Canals. The British Waterways Board was initially established as a result of the Transport Act 1962 and took control of the inland waterways assets of the British Transport Commission in 1963. By the final years of its existence, British Waterways was sponsored by the Department for Environment, Food and Rural Affairs (DEFRA) in England and Wales, and by the Scottish Government in Scotland. British Waterways managed and maintained of canals, rivers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, colour, pattern, size), i.e. external morphology (or eidonomy), as well as the form and structure of the internal parts like bones and organs, i.e. internal morphology (or anatomy). This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of gross structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Friedrich Burdach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cellular Differentiation
Cellular differentiation is the process in which a stem cell alters from one type to a differentiated one. Usually, the cell changes to a more specialized type. Differentiation happens multiple times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Although metabolic composition does get altered quite dramaticall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Alfred Weiss
Paul Alfred Weiss (March 21, 1898 – September 8, 1989) was an Austrian biologist who specialised in morphogenesis, development, differentiation and neurobiology. A teacher, experimenter and theorist, he made a lasting contribution to science in his lengthy career, throughout which he sought to encourage specialists in different fields to meet and share insights. Paul Weiss was born in Vienna, the son of a Jewish couple, Carl S. Weiss, a businessman, and Rosalie Kohn Weiss. His background favoured music, poetry, and philosophy – Weiss himself was a violinist – but an uncle encouraged an interest in science. Weiss received his baccalaureate in 1916. After the end of the First World War, having served for three years as an officer in the artillery, he commenced studies in mechanical engineering at the Technische Hochschule in Vienna, (now Vienna University of Technology). He then shifted his focus to biology with a minor in physics. He absorbed the studies of Edmond B. Wilso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Spemann
Hans Spemann (; 27 June 1869 – 9 September 1941) was a German embryologist who was awarded a Nobel Prize in Physiology or Medicine in 1935 for his student Hilde Mangold's discovery of the effect now known as embryonic induction, an influence, exercised by various parts of the embryo, that directs the development of groups of cells into particular tissues and organs. Spemann added his name as an author to Hilde Mangold's dissertation (although she objected) and won a Nobel Prize for her work. Biography Hans Spemann was born in Stuttgart, the eldest son of publisher Wilhelm Spemann and his wife Lisinka, née Hoffman. After he left school in 1888 he spent a year in his father's business, then, in 1889–1890, he did military service in the Kassel Hussars followed by a short time as a bookseller in Hamburg. In 1891 he entered the University of Heidelberg where he studied medicine, taking his preliminary examination in 1893. There he met the biologist and psychologist Gustav Wolff w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphogenetic Field
In the developmental biology of the early twentieth century, a morphogenetic field is a group of cells able to respond to discrete, localized biochemical signals leading to the development of specific morphological structures or organs. The spatial and temporal extents of the embryonic field are dynamic, and within the field is a collection of interacting cells out of which a particular organ is formed. As a group, the cells within a given morphogenetic field are constrained: thus, cells in a ''limb field'' will become a limb tissue, those in a ''cardiac field'' will become heart tissue. However, specific cellular programming of individual cells in a field is flexible: an individual cell in a cardiac field can be redirected via cell-to-cell signaling to replace specific damaged or missing cells. Imaginal discs in insect larvae are examples of morphogenetic fields. Historical development The concept of the morphogenetic field, fundamental in the early twentieth century to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Cellular Differentiation")
