category
stringclasses 16
values | text
stringlengths 18
204k
| id
stringlengths 2
8
| url
stringlengths 38
44
|
|---|---|---|---|
Natural_sciences | Robert Cecil Hayes
Robert Cecil Hayes (19 January 1900–3 September 1977) was a New Zealand astronomer, seismologist and organist. He was born in Wellington, New Zealand on 19 January 1900.
Hayes did not have any formal qualifications, however he began work at the Dominion Observatory, Wellington (then named the Hector Observatory) in 1920. The observatory was responsible for maintaining the New Zealand Government Time Service. Hayes was trained in the astronomical observations necessary to keep the clocks accurate. Some of his initial work also involved working on the seismograph that the observatory inherited from seismologist George Hogben. Hayes became acting-director of the observatory after Charles Edward Adams retired from the position in 1936. He was acting-director for 12 years before the position was formalised.
One of the contributions Hayes had while at the Observatory was the application of the Richter scale in New Zealand. He was in communication with Charles Francis Richter who had been developing the scale; and by using the same Wood-Anderson type seismographs that Richter used, was able to apply it to earthquakes in New Zealand. Hayes was also interested on the research being done in the area of deep-focus earthquakes. This subsequently lead to his own research on seismic waves and the conclusion that New Zealand was on the continental side of the crust near to the boundary between continental and oceanic crust. He also confirmed the occurrence of deep-focus earthquakes in new Zealand.
In 1975, in recognition of his contributions, he was awarded the Hector Medal.
Hayes was born in Wellington on 19 January 1900, to Robert Edward Hayes and Ellen Thomas. He was educated in Wellington before attending Christ's College in Christchurch from 1914 to 1918. Hayes married Margaret Wyn Beere on 1 December 1932, they had two daughters. He was the organist at St Mary's Anglican Church in Karori, Wellington for 35 years. He died in Auckland on 3 September 1977.
| 34605676 | https://en.wikipedia.org/wiki?curid=34605676 |
Natural_sciences | Trevor Hatherton
Trevor Hatherton (30 September 1924 – 2 May 1992) was a New Zealand geophysicist, scientific administrator and Antarctic scientist. He was born in Sharlston, Yorkshire, England, on 30 September 1924.
In the 1958 Queen's Birthday Honours, Hatherton was appointed an Officer of the Order of the British Empire.
| 34605878 | https://en.wikipedia.org/wiki?curid=34605878 |
Natural_sciences | George Hogben
George Hogben (14 July 1853 – 26 April 1920) was a New Zealand educationalist and seismologist. He was born in Islington, Middlesex, England on 14 July 1853, and died after a short illness at home in Khandallah, Wellington . He was Inspector-General of Schools in New Zealand and was appointed CMG in the 1915 New Year Honours.
| 34608703 | https://en.wikipedia.org/wiki?curid=34608703 |
Natural_sciences | Amy Hodgson
Eliza Amy Hodgson ( Campbell, 10 October 1888 – 7 January 1983) was a New Zealand botanist who specialised in liverworts.
Hodgson was born in Havelock North and attended Pukahu Primary School and Napier Girls' High School. She went by her middle name Amy. Hodgson was self-educated in botany as her father refused to allow her to attend university.
Hodgson collected numerous specimens and was encouraged by George Osborne King Sainsbury with whom she collected. Hodgson also collected with Kenneth Willway Allison. Hodgson published her first scientific paper at the age of 42 and went on to publish more than 30 papers thereafter. She described two new species of liverworts and nine new genera. The liverwort "Lejeunea hodgsoniana" was named in her honour as was the species "Lepidolaena hodgsoniae".
Her herbarium was donated to Massey University in 1972.
She was elected a Fellow of the Linnean Society of London and in 1961 was accorded the same honour by the Royal Society of New Zealand. Hodgson was also an honorary member of the British Bryological Society.
Hodgson was awarded an honorary doctorate by Massey University in 1976.
| 34608709 | https://en.wikipedia.org/wiki?curid=34608709 |
Natural_sciences | Felipe Mendez
Felipe Mendez was born around 1897 in San Juan, Argentina and participated as a paleontological collector at the "2nd Captain Marshall Field Paleontological Expedition" in 1926.
Participants of this international team were Elmer S. Riggs (Leader and Photographer), Robert C. Thorne (Collector) and Rudolf Stahlecker (Collector). The expedition started in April 1926 and finished in November 1926. The purpose was geology fossil collecting in Catamarca, Argentina. The expedition was very successful, and even new species like Stahleckeria have been found during this collaboration.
| 34611949 | https://en.wikipedia.org/wiki?curid=34611949 |
Natural_sciences | Robert C. Thorne
Robert Coin Thorne (25 November 1898 – 27 May 1960) was an American paleontologist.
Thorne was born in Ashley, Utah.
He participated at the "2nd Captain Marshall Field Paleontological Expedition" in 1926. Other participants were Elmer S. Riggs (Leader and Photographer), Rudolf Stahlecker (Collector) and Felipe Mendez. The expedition started in April 1926 and finished in November 1926. The purpose was geology fossil collecting in Puerta Corral Quemado, Catamarca, Argentina, South America. The expedition was successful, and even new species like Stahleckeria have been found during this collaboration.
He was a veteran of World War I, an experienced outdoors man, mule driver and fossil collector. He was married to Constance and had with her a son, R. Neil Thorne. His letters about the expedition to his wife have 70 years later been published by their son at his own expense.
He died in Vernal, Utah.
| 34612110 | https://en.wikipedia.org/wiki?curid=34612110 |
Natural_sciences | Leslie Grange
Leslie Issott Grange (4 March 1894 – 6 October 1980) was a New Zealand geologist, soil scientist and scientific administrator. He was foundation director of the Soil Bureau.
In the 1958 Queen's Birthday Honours, Grange was appointed a Companion of the Imperial Service Order.
| 34614534 | https://en.wikipedia.org/wiki?curid=34614534 |
Natural_sciences | Udzha
Udzha is an impact crater on Mars, that measures 45 kilometer in diameter, but has been almost entirely covered by layers of ice and dust. Only the highest part of the crater rim rises above the polar deposits and hint at its circular form. Udzha Crater is located at 81.8 degrees north latitude, 77.2 degrees east longitude on Mars. It was named after a village in northern Russia.
| 34614856 | https://en.wikipedia.org/wiki?curid=34614856 |
Natural_sciences | Norman Elder (botanist)
Norman Lascelles Elder (born Wellington, New Zealand 6 April 1896 - died 10 August 1974) was a New Zealand electrical engineer, teacher, and botanist.
| 34620473 | https://en.wikipedia.org/wiki?curid=34620473 |
Natural_sciences | Thomas Hill Easterfield
Sir Thomas Hill Easterfield (4 March 1866 – 1 March 1949) was a New Zealand chemist and university professor. He was born in Doncaster, Yorkshire, England on 4 March 1866. Easterfield was one of the four founding professors of the Victoria University, Wellington.
In 1935, he was awarded the King George V Silver Jubilee Medal. He was appointed a Knight Commander of the Order of the British Empire in the 1938 Birthday Honours.
| 34620703 | https://en.wikipedia.org/wiki?curid=34620703 |
Natural_sciences | Herbert Boucher Dobbie
Herbert Boucher Dobbie (13 February 1852–8 August 1940) was a New Zealand engineering draughtsman, botanist, stationmaster, orchardist and writer.
Dobbie was born in Hayes, Middlesex, England, on 13 February 1852.
He died in Auckland, New Zealand on 8 August 1940.
Five versions of the first edition of New Zealand ferns were produced by Herbert Dobbie and Eric Craig in the late nineteenth century. These are often referred to as the “blue books” because the pages have full-sized, white silhouettes of ferns on a blue background. The five versions are:
A: Dobbie, H. B. "145 Varieties of New Zealand ferns" In two parts. Part 1. (1880) pp. 1-48.
B: Dobbie, H. B. "New Zealand ferns. 148 Varieties." In two parts. Part 2, (1880) pp. 49-104.
C: Dobbie, H. B. "New Zealand ferns. 148 Varieties." (1880) 104p.
D: Craig, E. "New Zealand ferns, 167 Varieties." (c. 1888) 104p.
E: Craig, E. "New Zealand ferns, 172 Varieties." Ed 2. (1892) 100p.
They were made by a process similar to blueprinting. A fern specimen was placed on chemically treated paper, which was then exposed to light for a set period of time. The paper was then washed in water which caused the exposed paper to turn blue while the paper under the fern remained white.
Herbert B. Dobbie produced three hand-made book versions of fern illustrations (versions A-C). A few years later Dobbie sold the plates for this book to Eric Craig in Auckland who re-issued the books in c. 1888 and c.1892 (D-E).
There are very few fern specimens collected or identified by Dobbie in New Zealand's herbarium collections. Dobbie's books, and particularly their images, are therefore the principal means of authenticating the identifications and names that he, as the New Zealand expert of that period, used for New Zealand ferns. The blue books are an important early window into Dobbie's understanding and interpretation of New Zealand fern taxonomy and diversity. They are also striking representations of New Zealand's ferns.
Dobbie went on to produce the second and later editions of New Zealand ferns from 1921 onwards. With its fine photographs of fern specimens, hints on collection and cultivation and delightful essays on fern-collecting expeditions it was an entirely different book from that of 1880. Unfortunately, in his effort to cater to the general reader Dobbie deliberately used popular but inaccurate terminology in his fern descriptions. This was remedied in the fourth edition of 1951, revised by Marguerite Crookes. She then rewrote the book for the final edition of 1963, 'incorporating illustrations and original work by H. B. Dobbie'. For 70 years, in one or other of its editions, it was the most popular book on New Zealand ferns.
| 34622346 | https://en.wikipedia.org/wiki?curid=34622346 |
Natural_sciences | Jupiter LXXII
Jupiter LXXII, originally known as , is a natural satellite of Jupiter. It was discovered by Scott Sheppard in 2011. It belongs to the Carme group.
This moon was lost after its discovery in 2011. Its recovery was announced on 17 September 2018.
| 34627824 | https://en.wikipedia.org/wiki?curid=34627824 |
Natural_sciences | Jupiter LVI
Jupiter LVI, provisionally known as , is a natural satellite of Jupiter. It was discovered by Scott Sheppard in 2011. Images of the newly discovered moon were captured using the Magellan-Baade telescope at the Las Campanas Observatory in Chile. It is an irregular moon with a retrograde orbit. The discovery of Jupiter LVI brought the Jovian satellite count to 67. It is one of the outer retrograde swarm of objects orbiting Jupiter and belongs to the Pasiphae group.
The moon was lost following its discovery in 2011. It was recovered in 2017 and given its permanent designation that year.
| 34627844 | https://en.wikipedia.org/wiki?curid=34627844 |
Natural_sciences | Shams al-Din al-Khafri
Shams al-Din Muhammad b. Ahmad al-Khafri al-Kashi (died 1550), known as Khafri, was a Persian religious scholar and astronomer at the beginning of the Safavid dynasty, during a period of mass conversion to Shia Islam. He wrote on philosophy, religion, and astronomy, the latter including a commentary on al-Tusi and critiques of al-Shirazi.
In his commentary on al-Tusi Khafri contributes some original solutions to the equant problem, three for Mercury and one for the Moon. His solution for the Moon, like Ptolemy's original model, still contains the discrepancy for the Moon's distance that was fixed earlier by al-Shatir, of whose work he was apparently not aware.
| 34629603 | https://en.wikipedia.org/wiki?curid=34629603 |
Natural_sciences | Kelvin–Planck statement
The Kelvin–Planck statement (or the Heat Engine Statement) of the second law of thermodynamics states that "it is impossible to devise a cyclically operating heat engine, the effect of which is to absorb energy in the form of heat from a single thermal reservoir and to deliver an equivalent amount of work".
This implies that it is impossible to build a heat engine that has 100% thermal efficiency..
| 34632669 | https://en.wikipedia.org/wiki?curid=34632669 |
Natural_sciences | Ruina montium
Ruina montium (Latin, "wrecking of mountains") was an ancient Roman mining technique that draws on the principle of Pascal's barrel. Miners would excavate narrow cavities down into a mountain, whereby filling the cavities with water would cause pressures large enough to fragment thick rock walls. It was described by Pliny the Elder ("Natural History" 33.21), who served as procurator in Spain.
| 34633252 | https://en.wikipedia.org/wiki?curid=34633252 |
Natural_sciences | FasterCures
FasterCures is a Washington, D.C.–based think tank that focuses on accelerating medical research. This healthcare-related non profit is the Milken Institute's Center for Accelerating Medical Solutions. FasterCures describes itself as an "action tank" that works on many diverse projects in collaboration with industry, academia, non profits, government agencies and philanthropic foundations. FasterCures' mission is to save lives by saving time in the discovery, development and deployment of new therapies for deadly and debilitating diseases. The executive director of FasterCures is Tanisha Carino.
In 2003, The Milken Institute founded FasterCures as its center for accelerating medical solutions. It is now one of five Milken Institute centers. Gregory Simon was the first president of FasterCures and remained there until moving on to be Senior Vice President, Patient Engagement at Pfizer, Inc. After Simon's departure, Margaret Anderson became the Executive Director of FasterCures. Melissa Stevens is currently the Deputy Executive Director. FasterCures is additionally funded by a $35 million grant given in 2007 from the Sumner M. Redstone Charitable Foundation.
Since 2003, FasterCures has grown and evolved to be a leading authority in promoting innovation in medical research. It has partnered with numerous disease research organizations and associations, such as the Council for American Medical Innovation, to spread their message and accomplish common goals.
FasterCures advocates for patient-centered and patient-driven advancements in the medical research community. It works with patient advocates, investors, policymakers, researchers, and any other leaders of medical development to advance four basic areas:
FasterCures has a number of focused programs that execute these above goals with the purpose of saving lives by saving time.
Partnering for Cures is FasterCures' annual meeting that brings together diverse participants to discuss and solve the crucial issues facing the medical research world today. Partnering for Cures is structured with thought-provoking panels that host well-known speakers from the different sectors of the medical world; presenters from organizations that are boasting innovative approaches to the issues facing health; pro-bono, personalized advice from experts across medical research fields; and a unique partnering systems that allows conference participants to schedule meetings throughout the weekend to collaborate and create new approaches to save and improve lives. The 2012 Partnering for Cures meeting will be the fourth annual conference and will take place on November 28–30, 2012 at the Grand Hyatt New York, New York.
TRAIN Central Station is a portal that provides tools for venture philanthropists. It identifies and promotes innovative venture philanthropies and acts as a model and resource for other nonprofits, industry, academia, policy makers and the media. TRAIN also provides webinars on hot-button medical research issues in today's world. The most recent ones included an informational session on NCATS and a question and answer session with FDA Commissioner Margaret Hamburg.
The Philanthropy Advisory Service (PAS) seeks to improve access to medical solutions by easing the philanthropy process. PAS helps philanthropists makes informed decisions about where they should invest their money. PAS was designed to help philanthropists make more impactful donations to medical research by providing information about innovative and efficient disease foundations so that the philanthropists could match their interests to a quality organization and donate wisely.
Patients Helping Doctors is a program that FasterCures offers to connect patients with resources that will facilitate medical breakthroughs. The different aspects of this program include improving electronic health records, facilitating patient enrollment in clinical trials through a partnership with Emerging Med, and engaging with community physicians to help them participate in clinical research.
Time Equals Lives, a social media campaign that "FasterCures" launched in 2012, spotlights patient stories that are submitted through the www.timeequalslives.org portal. The campaign also provides infographics highlighting key facts and messages about medical research.
FasterCures advocates for greater resources at the Food and Drug Administration. Additionally, FasterCures is invested in promoting translational research through the National Institutes of Health.
FasterCures has released publications to inform different sectors of the medical research industry. The topics surrounding their publications include bridging the “Valley of Death,” improving biobanking, advancing the use of electronic health records, maximizing the impact of patient advocates, how to optimize philanthropic decisions, and FasterCures annual progress reports.
https://www.fastercures.org/
| 34634187 | https://en.wikipedia.org/wiki?curid=34634187 |
Natural_sciences | Umbilical ring
The umbilical ring is a dense fibrous ring surrounding the umbilicus at birth. At about the sixth week of embryological development, the midgut herniates through the umbilical ring; six weeks later it returns to the abdominal cavity and rotates around the superior mesenteric artery.
Dense embryonic connective tissue encircles the attachment of the umbilical cord. It forms an umbilical ring of mesodermal condensation surrounding the coelomic portal, and is present in the 16 mm. embryo, but more emphatically so in the 23 mm. embryo. The compact tissue first appears in the stalk mesoderm, situated superficial to the allantoic vessels. Cranially it lies ventral to the umbilical vein and on each side extends into the tissue of the lateral pillars of the cord bounding the coelom. When the myotomic downgrowths reach the ventral aspect, their anterior portions (i.e. the sheaths of the recti muscles) become continuous with the tissue of the umbilical ring.
When the umbilical ring has failed to close during the gestation (pregnancy) which results in a central defect in the lineal alba. Umbilical hernias are smaller than one centimeter in size that it is present at birth but will only close in four to five years of life. In some cases, hernias don't need any surgical repair but when it is larger in size that protrusion is blighting to the parent and the child, it would require to get an early surgical repair. It is more common in women with increased intra-abdominal pressure during pregnancy.
| 34640808 | https://en.wikipedia.org/wiki?curid=34640808 |
Natural_sciences | Alfred Cockayne
Alfred Hyde Cockayne (23 May 1880 – 21 October 1966) was a New Zealand botanist, agricultural scientist and administrator. He was born in Dunedin, or Oamaru, New Zealand, on 23 May 1880. He was the son of another noted botanist Leonard Cockayne.
In the 1937 Coronation Honours, Cockayne was made a Companion of the Imperial Service Order. In the 1957 Queen's Birthday Honours, he was appointed a Commander of the Order of the British Empire, for services to agriculture.
| 34648187 | https://en.wikipedia.org/wiki?curid=34648187 |
Natural_sciences | Monopartite
Monopartite refers to the class of genome that is presented in the genome of the virus. As opposed to multipartite, viruses composed of monopartite genomes have a single molecule of nucleic acid. Most dsDNA viruses are monopartite.
| 34652450 | https://en.wikipedia.org/wiki?curid=34652450 |
Natural_sciences | Multipartite
Multipartite is a class of virus that have segmented nucleic acid genomes. Only a few ssDNA viruses have multipartite genomes, but a lot more RNA viruses have multipartite genomes. An advantage of multipartite genome is its ability to synthesize multiple mRNA strands to avoid the cellular constraint of monocistronicity.
Monopartite
| 34652474 | https://en.wikipedia.org/wiki?curid=34652474 |
Natural_sciences | International Organization for Succulent Plant Study
The International Organization for Succulent Plant Study (IOS) describes itself as a "non-governmental organization promoting the study and conservation of succulent and allied plants and encouraging collaboration among scientists and curators of significant living collections of such plants, professional or amateur." In 1984, it was decided that the Cactaceae Section of the IOS should set up a working party, now called the International Cactaceae Systematics Group (ICSG), to produce consensus classifications of cacti down to the level of genera. Their system has been used as the basis of subsequent classifications.
| 34657052 | https://en.wikipedia.org/wiki?curid=34657052 |
Natural_sciences | Val Chapman
Valentine Jackson Chapman (14 February 1910 – 5 December 1980) was a New Zealand botanist, university professor and conservationist.
He was born in Alcester, Warwickshire, England, on 14 February 1910.
Chapman was an associate of Auckland's Mayor Dove-Myer Robinson and was a member of the Auckland Metropolitan Drainage Board between 1955 and 1956. He was a member of the Auckland City Council winning two by-elections in 1954 and 1961. Despite these successes, he was defeated in both subsequent elections in 1956 and 1962, missing out by only 172 votes in his second attempt.
In the 1974 New Year Honours, Chapman was appointed an Officer of the Order of the British Empire, for academic and public services. In 1977, he was awarded the Queen Elizabeth II Silver Jubilee Medal.
Chapman died on 5 December 1980.
| 34661234 | https://en.wikipedia.org/wiki?curid=34661234 |
Natural_sciences | Robert Brown (New Zealand botanist)
Robert Brown (c. 1824 – 13 December 1906) was a New Zealand bootmaker and botanist. He was born in Glasgow, Scotland c. 1824.
| 34662643 | https://en.wikipedia.org/wiki?curid=34662643 |
Natural_sciences | Decompression (physics)
In physics, decompression refers to a reduction of pressure or compression, and to some extent to the consequences of a reduction of pressure.
Decompression has the most obvious consequences when applied to gases or to liquids containing dissolved gases.
| 34663710 | https://en.wikipedia.org/wiki?curid=34663710 |
Natural_sciences | James Gow Black
James Gow Black (10 May 1835 – 25 December 1914) was a New Zealand chemist, mineralogist, lecturer and university professor . He was born in Tomgarrow, Perthshire, Scotland on 10 May 1835.
| 34678258 | https://en.wikipedia.org/wiki?curid=34678258 |
Natural_sciences | James Mackintosh Bell
James Abbott Mackintosh Bell (23 September 1877 – 31 March 1934) was a New Zealand geologist, writer and company director. He was born in St Andrews, Quebec on 23 September 1877 and graduated from Harvard University in 1904. In 1909, he married Vera Margaret Beauchamp, the older sister of the writer Katherine Mansfield.
| 34678542 | https://en.wikipedia.org/wiki?curid=34678542 |
Natural_sciences | John Arthur Bartrum
John Arthur Bartrum (24 May 1885 – 7 June 1949) was a New Zealand geologist and university professor. He was born in Geraldine, South Canterbury, New Zealand on 24 May 1885.
| 34678776 | https://en.wikipedia.org/wiki?curid=34678776 |
Natural_sciences | Miles Barnett
Miles Aylmer Fulton Barnett (30 April 1901 – 27 March 1979) was a New Zealand physicist and meteorologist. He was born in Dunedin, New Zealand, on 30 April 1901.
In the 1945 King's Birthday Honours, Barnett was appointed an Officer of the Order of the British Empire (Military Division). In 1953, he was awarded the Queen Elizabeth II Coronation Medal.
| 34678990 | https://en.wikipedia.org/wiki?curid=34678990 |
Natural_sciences | Bernard Aston
Bernard Cracroft Aston (9 August 1871 – 31 May 1951) was New Zealand's first official agricultural chemist and was also a notable botanist. He was born in Beckenham, Kent, England, on 9 August 1871. He was a member of the 1907 Sub-Antarctic Islands Scientific Expedition. He was appointed a Commander of the Order of the British Empire in the 1949 New Year Honours for services to agriculture and botany.
| 34683835 | https://en.wikipedia.org/wiki?curid=34683835 |
Natural_sciences | Harry Allan
Harry Howard Barton Allan (27 April 1882 – 29 October 1957) was a New Zealand teacher, botanist, scientific administrator and writer.
Allan was born on 27 April 1882 in Nelson, and was educated at Nelson College, and Auckland University College, from where he graduated MA in 1908. For his lengthy botanical study of Mount Peel, he was awarded the degree of Doctor of Science in 1923.
In the 1948 King's Birthday Honours Allan was appointed a Commander of the Order of the British Empire for services to botany in New Zealand.
| 34684337 | https://en.wikipedia.org/wiki?curid=34684337 |
Natural_sciences | Charles William Adams (surveyor)
Charles William Adams (7 July 1840–29 October 1918) was a New Zealand surveyor, astronomer and public servant. He was born in Buckland, Tasmania, Australia on 7 July 1840.
His son, Charles Edward Adams, pursued a similar career as a university lecturer, surveyor, astronomer and seismologist. His daughter, Ella Spicer, and granddaughter, Peggy Spicer, were both painters.
| 34684510 | https://en.wikipedia.org/wiki?curid=34684510 |
Natural_sciences | Hort.
Hort., in the taxonomy of plants, is an abbreviation used to indicate a name that saw significant use in the horticultural literature (usually of the 19th century and earlier), but was never properly published.
"Hort.," short for "hortulanorum", was proposed in order that a non-wild, cultivated plants known and described in agriculture or gardening circles can be examined by taxonomists, to be examined if they can be established as species, and published.
The proposal was made at the 1928 "International Congress of Horticulture of Vienna" by citrus scholar Tyozaburo Tanaka.
For example, for the clementine, the following binomial name was adopted by Tanaka:
| 34694700 | https://en.wikipedia.org/wiki?curid=34694700 |
Natural_sciences | Jyotirvidya Parisanstha
Jyotirvidya Parisanstha (known as JVP to people of Pune, India and to most of the Indian amateur astronomers) is an association of amateur astronomers. On August 22, 1944 some eminent citizens of Pune formed JVP, primarily for the spread of knowledge of astronomy among the public and also to make their own contribution as far as possible. It was the first association of its kind and remained so far for a few decades. Right from conception, JVP has been actively working for the propagation of astronomy in purely scientific temperament. JVP is the first Amateur Association to Host the ALL INDIA AMATEUR ASTRONOMERS MEET in 1991 and the first All India Messier Marathon in 2012.
Study Tour to GMRT and IUCAA Observatory -
Jyotirvidya Parisanstha organized a study tour to Giant meterwave Radio Telescope GMRT at Khodad, and IUCAA Girawali Observatory, Girawali; both near Narayangaon, Pune on Sunday May 25, 2014. GMRT is the world’s largest array of radio telescopes at meter wavelengths. It contains 30 fully steerable 45 meter diameter antennas arranged in ‘Y’ shape with the diameter of nearly 25 km. IUCAA Girawali Observatory has 2 meter optical and near-infrared telescope. Information given on construction and working of these telescopes. Dr. Divya Oberoi, Scientist, GMRT and Mr. Arvind Paranjpye, Director, Nehru Planetarium guided the tour.
Exhibition on Optical Observatories -
An astronomical exhibition on “Optical Observatories - Infinity Focused with Giant Eye” was organized by Jyotirvidya Parisanstha, Pune during 19–21 September 2014 at “Jawaharlal Nehru Cultural Centre, Opposite Mahatma Phule Museum, Ghole Road, Pune” (Timing: 9 am to 8 pm). The exhibition was inaugurated on 19 September 2014 at 11.00 am.
The objective of the exhibition was to spread the knowledge regarding the astronomical observatories with large telescopes. In 1609, Galileo Galilei used telescope for astronomical purpose for the first time and since then the telescope observatories are becoming bigger and more advance. The exhibition provided information on basics of telescope, working of big observatories, amateur observatories, etc. Exhibition consisted of posters, models of some observatories, Jyotirvidya’s telescope setups, multimedia displays, short films, etc.
Both day were busy with school students and residents and astronomy enthusiasts. Around 700 school students visited exhibition.
Photographs & Video from the event can be found on JVP's Facebook page.
| 34716188 | https://en.wikipedia.org/wiki?curid=34716188 |
Natural_sciences | Mid-Brunhes Event
The Mid-Brunhes Event (MBE) is a climatic shift evident in a number of marine sediment and Antarctic ice cores. It corresponds to an increase in amplitude of glacial-interglacial cycles.
The MBE roughly corresponds to the transition between MIS 12 and MIS 11 (Termination V) about 430 kyr ago.
It is characterized by a further increase of ice-volume variations with, from then to the present day, four large-amplitude 100-kyr-dominated glacial–interglacial cycles.
| 34740056 | https://en.wikipedia.org/wiki?curid=34740056 |
Natural_sciences | Carl Barus
Carl Barus (February 19, 1856 – September 20, 1935) was an American physicist and the maternal great-uncle of the American novelist Kurt Vonnegut.
Barus was born in Cincinnati, United States. The son of German immigrants (the musician Carl Barus, Sr. and Sophia, "nee" Möllmann) graduated from Woodward High School, together with William Howard Taft, in 1874.
After studying mining engineering for two years, he moved to Würzburg, Germany, where he studied physics under Friedrich Kohlrausch, and graduated "summa cum laude" in 1879.
Barus married Annie Gertrude Howes on January 20, 1887. They had two children, Maxwell and Deborah. In the United States in 1892, he was a member of the American Philosophical Society, and the youngest of all members to National Academy of Sciences.
In 1903 he was appointed as a dean of the Brown University Graduate Department, which he was controlling from his office in Wilson Hall. He remained the dean of the graduate school until his retirement in 1926. By that time, the department had grown large enough to become a school within the university which has been attributed to his many contributions. In 1905 he was a corresponding member of Britain and the same year became a member of the First International Congress of Radiology and Electricity at Brussels. The same year, he became a member of the Physikalisch-Medizinische Sozietät at Erlangen. Also, the same year he became the fourth president of American Physical Society, and in 1906, became a member on the advisory board of physics, at the Carnegie Institution of Washington state.
Barus died in Providence, Rhode Island, United States.
| 34742573 | https://en.wikipedia.org/wiki?curid=34742573 |
Natural_sciences | Bengt Fredrik Fries
Bengt Fredrik Fries (24 August 1799 in Helsingborg – 7 April 1839 in Stockholm) was a Swedish zoologist.
He studied at Lund University.
| 34771806 | https://en.wikipedia.org/wiki?curid=34771806 |
Natural_sciences | Automated Meteorological Data Acquisition System
AMeDAS ("A"utomated "Me"teorological "D"ata "A"cquisition "S"ystem), commonly known in Japanese as "アメダス" ("amedasu"), is a high-resolution surface observation network developed by the Japan Meteorological Agency (JMA) used for gathering regional weather data and verifying forecast performance. The system began operating on 1 November 1974, and currently comprises 1,300 stations throughout Japan (of which over 1,100 are unmanned), with an average separation of .
Observations at manned stations cover weather, wind direction and speed, types and amounts of precipitation, types and base heights of clouds, visibility, air temperature, humidity, sunshine duration, and atmospheric pressure. All of these (except weather, visibility and cloud-related meteorological elements) are observed automatically.
At unmanned stations, observations are performed every 10 minutes. About 700 of the unmanned stations observe precipitation, air temperature, wind direction and speed, and sunshine duration, while the other stations observe only precipitation.
For about 280 stations (manned or unmanned) located in areas of heavy snowfall, snow depth is also observed.
All the observational data is transmitted to the AMeDAS Center at JMA Headquarters in Tokyo on a real time basis via dedicated telephone lines. The data is then delivered to the whole country after a quality check.
As well as weather conditions, AMeDAS is also used in the observation of natural disasters. Temporary observation points are set up in areas where there are signs of volcanic eruptions or earthquakes.
| 34783649 | https://en.wikipedia.org/wiki?curid=34783649 |
Natural_sciences | Decoupling (meteorology)
In weather forecasting, decoupling is boundary-layer decoupling of atmospheric layers over land at night. During the day when the sun shines and warms the land, air at the surface of the earth is heated and rises. This rising air mixes the atmosphere near the earth. At night this process stops and air near the surface cools as the land loses heat by radiating in the infrared. If winds are light, air near the surface of the earth can become much colder, compared to the air above it, than if more mixing of air layers occurred.
| 34783762 | https://en.wikipedia.org/wiki?curid=34783762 |
Natural_sciences | BigDFT
BigDFT is a free software package for physicists and chemists, distributed under the GNU General Public License, whose main program allows the total energy, charge density, and electronic structure of systems made of electrons and nuclei (molecules and periodic/crystalline solids) to be calculated within density functional theory (DFT), using pseudopotentials, and a wavelet basis.
BigDFT implements density functional theory (DFT) by solving the Kohn–Sham equations describing the electrons in a material, expanded in a Daubechies wavelet basis set and using a self-consistent direct minimization or Davidson diagonalisation methods to determine the energy minimum. Computational efficiency is achieved through the use of fast short convolutions
and pseudopotentials to describe core electrons. In addition to total energy, forces and stresses are also calculated so that geometry optimizations and ab initio molecular dynamics may be carried out.
The Daubechies wavelet basis sets are an orthogonal systematic basis set as plane wave basis set but has the great advantage to allow adapted mesh with different levels of resolutions (see multi-resolution analysis). Interpolating scaling functions are used also to solve the Poisson's equation with different boundary conditions as isolated or surface systems.
BigDFT was among the first massively parallel density functional theory codes which benefited from graphics processing units (GPU) using CUDA and then OpenCL languages.
Because the Daubechies wavelets have a compact support, the Hamiltonian application can be done locally which permits to have a linear scaling in function of the number of atoms instead of a cubic scaling for traditional DFT software.
| 34784308 | https://en.wikipedia.org/wiki?curid=34784308 |
Natural_sciences | Abyss Box
The Abyss Box is a vessel containing of water at the very high pressure of 18 megapascals to simulate the natural underwater environment of bathyal fauna living at about below the surface. It is on display at Oceanopolis aquarium in Brest, France. It was designed by French researcher Bruce Shillito from Pierre and Marie Curie University in Paris.
All the equipment maintaining the extreme pressure inside the Abyss Box weighs . The device keeps deep-dwelling creatures alive so they can be studied, especially regarding their adaptability to warmer ocean temperatures. Currently the Abyss Box houses only common species of deep sea creatures including a deep sea crab, "Bythograea thermydron" and a deep sea prawn, "Pandalus borealis", which are some of the hardier species with a higher survival rate in depressurized environments.
| 34793304 | https://en.wikipedia.org/wiki?curid=34793304 |
Natural_sciences | Alfred Senier
Alfred Senier (24 January 1853 – 29 June 1918) was a chemist and a Professor of Chemistry, Queen's College, Galway from 1891 until his death. He was one of the founding members of the Aristotelian Society.
| 34800461 | https://en.wikipedia.org/wiki?curid=34800461 |
Natural_sciences | Bioproducts engineering
Bioproducts engineering or bioprocess engineering refers to engineering of bio-products from renewable bioresources. This pertains to the design and development of processes and technologies for the sustainable manufacture of bioproducts (materials, chemicals and energy) from renewable biological resources.
Bioproducts engineers harness the molecular building blocks of renewable resources to design, develop and manufacture environmentally friendly industrial and consumer products. From biofuels, renewable energy, and bioplastics to paper products and "green" building materials such as bio-based composites, Bioproducts engineers are developing sustainable solutions to meet the world's growing materials and energy demand. Conventional bioproducts and emerging bioproducts are two broad categories used to categorize bioproducts. Examples of conventional bio-based products include building materials, pulp and paper, and forest products. Examples of emerging bioproducts or biobased products include biofuels, bioenergy, starch-based and cellulose-based ethanol, bio-based adhesives, biochemicals, biodegradable plastics, etc. Bioproducts Engineers play a major role in the design and development of "green" products including biofuels, bioenergy, biodegradable plastics, biocomposites, building materials, paper and chemicals. Bioproducts engineers also develop energy efficient, environmentally friendly manufacturing processes for these products as well as effective end-use applications. Bioproducts engineers play a critical role in a sustainable 21st century bio-economy by using renewable resources to design, develop, and manufacture the products we use every day. The career outlook for bioproducts engineers is very bright with employment opportunities in a broad range of industries, including pulp and paper, alternative energy, renewable plastics, and other fiber, forest products, building materials and chemical-based industries.
Commonly referred to as bioprocess engineering, bioprocess engineering is a specialization of biotechnology, biological engineering, chemical engineering or of agricultural engineering. It deals with the design and development of equipment and processes for the manufacturing of products such as food, feed, pharmaceuticals, nutraceuticals, chemicals, and polymers and paper from biological materials. Bioprocees engineering is a conglomerate of mathematics, biology and industrial design, and consists of various spectrums like designing of fermentors, study of fermentors (mode of operations etc.). It also deals with studying various biotechnological processes used in industries for large scale production of biological product for optimization of yield in the end product and the quality of end product. Bio process engineering may include the work of mechanical, electrical and industrial engineers to apply principles of their disciplines to processes based on using living cells or sub component of such cells.
| 34808927 | https://en.wikipedia.org/wiki?curid=34808927 |
Natural_sciences | Glossary of astronomy
This glossary of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields. Astronomy is concerned with the study of celestial objects and phenomena that originate outside the atmosphere of Earth. The field of astronomy features an extensive vocabulary and a significant amount of jargon.
| 34809573 | https://en.wikipedia.org/wiki?curid=34809573 |
Natural_sciences | William Watson (botanist)
William Watson (1858–1925) was a British botanist and horticulturist. He was a gardener at the Royal Botanic Gardens, Kew from 1879, Assistant Curator 1886–1901 and Curator 1901–1922.
| 34813318 | https://en.wikipedia.org/wiki?curid=34813318 |
Natural_sciences | Samuel Walter Johnson Smith
Samuel Walter Johnson Smith FRS (January 26, 1871 - August 20, 1948) was an English physicist.
He studied Natural Sciences at Trinity College, Cambridge and became Professor of Physics at the University of Birmingham in 1919, where he succeeded J.H. Poynting.
He was the son of Walter Mackersie Smith and an elected Fellow of the Royal Society.
| 34831159 | https://en.wikipedia.org/wiki?curid=34831159 |
Natural_sciences | James Howie (bacteriologist)
Sir James William Howie FRCP, FRCPGlas, FRCPE, FRCPath (31 December 1907 – 17 March 1995) was a Scottish bacteriologist, Director of the Public Health Laboratory Service, 1963–1973.
In November 1966, he was installed as the President of the College of Pathologists.
| 34847294 | https://en.wikipedia.org/wiki?curid=34847294 |
Natural_sciences | Phase conjugation
Phase conjugation is a physical transformation of a wave field where the resulting field has a reversed propagation direction but keeps its amplitudes and phases.
It is distinguished from Time Reversal Signal Processing by the fact that phase conjugation uses a holographic or parametric pumping whereas time reversal records and re-emits the signal using transducers.
Both techniques allow an amplification of the conjugate wave compared to the incident wave.
As in time reversal, the wave re-emitted by a phase conjugation mirror will auto-compensate the phase distortion and auto-focus itself on its initial source, which can be a moving object.
Propagation of a time reversal replica demonstrates a remarkable property of phase-conjugated wave fields.
Phase conjugation of wave field means the inversion of linear momentum and angular momentum of light.
Phase conjugation methods exist in two main domains:
| 34854733 | https://en.wikipedia.org/wiki?curid=34854733 |
Natural_sciences | Boundary friction
Boundary friction occurs when a surface is at least partially wet, but not so lubricated that there is no direct friction between two surfaces.
When two consistent, unlubricated surfaces slide against each other, there is a specific, predictable amount of friction that occurs. This amount increases as velocity does, but only up to a certain point. That increase generally follows what is known as a Stribeck curve, after Richard Stribeck. On the other hand, if the two surfaces are completely lubricated, there is no direct friction or rubbing at all. In real life, though, there is often a situation where the surfaces are not completely dry, but also not so lubricated that they do not touch.
This "boundary friction" produces various effects, like an increase in lubrication through the generation of shearing forces, or an oscillation effect during motion, as the friction increases and decreases.
For example, one can experience vibration when trying to brake on a partially damp road, or a cold glass that is slowly condensing moisture can be lifted until it spontaneously slides across the surface it is resting on.
| 34856488 | https://en.wikipedia.org/wiki?curid=34856488 |
Natural_sciences | Benoît-Philibert Perroud
Benoit-Philibert Perroud (1796 Lyon -1887, Lyon), was a French entomologist.
Benoit-Philibert Perroud was a specialist in Coleoptera. He was a Member of the Société entomologique de France, the Société Linnéenne de Lyon and the Entomological Society of Stettin.
partial list
| 34860047 | https://en.wikipedia.org/wiki?curid=34860047 |
Natural_sciences | Attila Borhidi
Borhidi Attila (born 28 June 1932), is a Széchenyi Prize winning Hungarian botanist, ecologist, professor, politician and full member of the Hungarian Academy of Sciences. He is most noted for his extensive work on plant taxonomy. 1989 to 1992, he was at the Janus Pannonius University Teacher Training Faculty, and from 1992 to 1994 the newly formed Faculty of Science. Between 1997 and 2002 he was Institute director of the Institute of Ecology and Botany.
He is a member of the Batthyány Society of Professors.
| 34860863 | https://en.wikipedia.org/wiki?curid=34860863 |
Natural_sciences | Roderich Moessner
Roderich Moessner is a condensed matter physicist working on the physics of strong fluctuations in many-body systems due to frustration, competing degrees of freedom or quantum fluctuations. Moessner received his PhD from University of Oxford and is now serving as one of the directors of the Max Planck Institute for the Physics of Complex Systems in Dresden, Germany. With C. Castelnovo and S. L. Sondhi, he is known for the theoretical proposition of realizing magnetic monopoles within a condensed matter system known as spin ice.
He received the Gottfried Wilhelm Leibniz Prize (Germany's most prestigious research funding prize) in 2013 jointly with Achim Rosch for their contributions to the physics of strongly interacting quantum systems.
| 34864314 | https://en.wikipedia.org/wiki?curid=34864314 |
Natural_sciences | Cryometer
A cryometer is a thermometer used to measure very low temperatures of objects.
There are many types of devices used as cryometers:
| 34890050 | https://en.wikipedia.org/wiki?curid=34890050 |
Natural_sciences | Dille–Koppanyi reagent
The Dille–Koppanyi reagent is used as a simple spot-test to presumptively identify barbiturates. It is composed of a mixture of two solutions. Part A is 0.1 g of cobalt(II) acetate dihydrate dissolved in 100 ml of methanol mixed with 0.2 ml of glacial acetic acid. Part B made up of is 5% isopropylamine (v/v) in methanol. Two drops of A are dropped onto the substance followed by one drop of B and any change in colour is observed.
The test turns phenobarbital, pentobarbital, amobarbital and secobarbital light purple by complexation of cobalt with the barbiturate nitrogens. The test, in a slightly different formulation, was developed in the 1930s by the Hungarian-American pharmacologist Theodore Koppanyi (1901–1985) and the American Biochemist, James Madison Dille (1928–1986).
| 34903180 | https://en.wikipedia.org/wiki?curid=34903180 |
Natural_sciences | Per E. Ahlberg
Per E. Ahlberg is a Swedish palaeontologist working with the earliest tetrapods. He took his Ph.D. in zoology at the University of Cambridge in 1989. He is currently professor at the Department of
organismal Biology, University of Uppsala. He has collaborated with English palaeontologist Jennifer A. Clack on a number of projects.
He was elected to the Royal Swedish Academy of Sciences early in 2012.
| 34911660 | https://en.wikipedia.org/wiki?curid=34911660 |
Natural_sciences | Zwikker reagent
The Zwikker reagent is used as a simple spot-test to presumptively identify barbiturates. It is composed of a mixture of two solutions. Part A is 0.5 g of copper (II) sulfate in 100 ml of distilled water. Part B consists of 5% pyridine (v/v) in chloroform. One drop of each is added to the substance to be tested and any change in colour is observed.
The test turns phenobarbital, pentobarbital and secobarbital light purple. Tea and tobacco turn yellow-green.
The test's lack of specificity and tendency to produce false positives means it is not widely used for presumptive drug testing, although it does still play a role as a thin layer chromatography stain.
It is named after the Dutch scientist Cornelis Zwikker.
| 34914721 | https://en.wikipedia.org/wiki?curid=34914721 |
Natural_sciences | Giles (bacteriophage)
Giles is a bacteriophage that infects "Mycobacterium smegmatis" bacteria. The genome of this phage is very different from that of other mycobacteriophages and is highly mosaic. More than half of its predicted genes are novel and are not seen in other species.
| 34915005 | https://en.wikipedia.org/wiki?curid=34915005 |
Natural_sciences | Michele Stossich
Michele Stossich (10 August 1857 – 7 February 1906) was an Italian-Austrian zoologist and helminthologist born in Trieste. He was the son of biologist Adolf Stossich (1824-1900).
Stossich studied at the University of Innsbruck and Vienna Polytechnic, earning his teaching certificate in 1878. Afterwards, he was an instructor in Fiume (1878-1882) and Trieste.
In 1902 he described Cyclocoelidae, a family of parasitic flatworms. During his career he classified a number of helminthological species, and has several zoological species named after him.
He was a member of the "Società adriatica di scienze naturali" (Adriatic Society of Natural Sciences), the "Società agraria di Trieste" (Agricultural Society of Trieste) and a corresponding member of the Museum of Rovereto and the Royal Academy of Sciences Modena.
He published numerous scientific articles in various periodicals, many of them located in the acts of the Adriatic Society of Natural Sciences, Trieste. The following are a few of his principal publications:
| 34917339 | https://en.wikipedia.org/wiki?curid=34917339 |
Natural_sciences | Convective mixing
In fluid dynamics, convective mixing is the vertical transport of a fluid and its properties. In many important ocean and atmospheric phenomena, convection is driven by density differences in the fluid, e.g. the sinking of cold, dense water in polar regions of the world's oceans; and the rising of warm, less-dense air during the formation of cumulonimbus clouds and hurricanes.
| 34927770 | https://en.wikipedia.org/wiki?curid=34927770 |
Natural_sciences | Maarten J. M. Christenhusz
Dr Maarten Joost Maria Christenhusz (born 27 April 1976) is a Dutch botanist, natural historian and photographer.
He was born in Enschede, the Netherlands, received his undergraduate and master's degrees from Utrecht University in Biology, and earned his PhD from the University of Turku, Finland in 2007. He is an authority on fern, gymnosperm and angiosperm classification, and is a contributor to the Angiosperm Phylogeny Group (compiler of APG IV). He has specialised in Marattiaceae and he described many species of "Danaea", including "Danaea kalevala" from the Lesser Antilles. A species of Moraceae, "Dorstenia christenhuszii" was named in honour of its discoverer. He is editor for the Linnean Society. He lives in Kingston-upon-Thames, Surrey, UK.
He is the former chief editor and initiator of the botanical journal "Phytotaxa", an associate editor of the "Botanical Journal of the Linnean Society" and chief editor of the "Zoological Journal of the Linnean Society". He has an interest in island biogeography, botanical gardens, floristic treatments, horticulture, photography, natural history and taxonomy.
He works as a botanical consultant
He is the lead author (together with Michael F. Fay and Mark W. Chase) of an encyclopedia of vascular plants called "Plants of the World".
Several vascular plant families and genera were named by him or together with colleagues.
| 34928789 | https://en.wikipedia.org/wiki?curid=34928789 |
Natural_sciences | Enterobacteria phage P4
Enterobacteria phage P4 (also known as satellite phage P4) is a temperate bacteriophage strain of species "Escherichia virus P2" within genus "P2virus" (formerly "P2-like viruses"), subfamily "Peduovirinae", family "Myoviridae". It is a satellite virus, requiring P2-related helper phage to grow lytically.
The P4 virion has a tail and an icosahedral head containing a linear double-stranded DNA genome of 11,627 kb.
Phage P4 infects "Escherichia coli". It is a satellite virus which cannot engage in lytic growth without the presence of a P2-related helper phage. It generally follows a lysogenic life cycle: after infection, the P4 genome integrates into that of its host. The P4 genome can also exist on its own within the host cell and can replicate as a free plasmid.
| 34936686 | https://en.wikipedia.org/wiki?curid=34936686 |
Natural_sciences | Fusion ignition
Fusion ignition is the point at which a nuclear fusion reaction becomes self-sustaining. This occurs when the energy being given off by the fusion reactions heats the fuel mass more rapidly than various loss mechanisms cool it. At this point, the external energy needed to heat the fuel to fusion temperatures is no longer needed. As the rate of fusion varies with temperature, the point of ignition for any given machine is typically expressed as a temperature.
Ignition should not be confused with "breakeven", a similar concept that compares the total energy being given off to the energy being used to heat the fuel. The key difference is that breakeven ignores losses to the surroundings, which do not contribute to heating the fuel, and thus are not able to make the reaction self-sustaining. Breakeven is an important goal in the fusion energy field, but ignition is required for a practical energy producing design.
In nature, stars reach ignition at temperatures similar to that of the Sun, around 15 million Kelvin (27 million degrees F). Stars are so large that the fusion products will almost always interact with the plasma before it can be lost to the environment at the outside of the star. In comparison, man-made reactors are far less dense and much smaller, allowing the fusion products to easily escape the fuel. To offset this, much higher rates of fusion are required, and thus much higher temperatures; most man-made fusion reactors are designed to work at temperatures around 100 million degrees, or higher. To date, no man-made reactor has reached breakeven, let alone ignition. Ignition has however been achieved in the cores of detonating thermonuclear weapons.
Lawrence Livermore National Laboratory has its 1.8 MJ laser system running at full power. This laser system is designed to compress and heat a mixture of deuterium and tritium, which are both isotopes of hydrogen, in order to compress the isotopes to a fraction of their original size, and fuse them into helium atoms (releasing neutrons in the process).
In January 2012, National Ignition Facility Director Mike Dunne predicted in a Photonics West 2012 plenary talk that ignition would be achieved at NIF by October 2012. However, , NIF is operating at conditions about 1/10 to 1/3 of breakeven. Confusingly, by LLNL definitions, ignition and breakeven occur at the same point, due to specifics of their experiment.
Experts believe that achieving fusion ignition is the first step towards the potentially limitless energy source that is nuclear fusion.
| 34946963 | https://en.wikipedia.org/wiki?curid=34946963 |
Natural_sciences | Synthon (company)
Synthon is a Dutch multinational that produces generic human drugs.
The company was founded in 1991 by two organic chemists of the Radboud University Nijmegen. Synthon is active in the Netherlands, the Czech Republic, Spain, the United States, Argentina, Chile, Russia, Mexico and South Korea with about 1,500 employees. The company is headquartered in Nijmegen.
Medications made by Synthon include:
The products are marketed by partners of the company. The name Synthon is not mentioned on the packaging.
In 2007 the company started developing biopharmaceuticals. In May 2012 Synthon announced that it bought the Biolex LEX System for manufacturing biopharmaceuticals in Lemna. The sale also included two preclinical biologics made with the LEX System, BLX-301, a humanized and glyco-optimized anti-CD20 antibody for non-Hodgkin's B-cell lymphoma and other B-cell malignancies and BLX-155, a direct-acting thrombolytic. The financial terms of the sale were not disclosed.
| 34948464 | https://en.wikipedia.org/wiki?curid=34948464 |
Natural_sciences | Fermi arc
In the field of unconventional superconductivity, a Fermi arc is a phenomenon visible in the pseudogap state of a superconductor. Seen in momentum space, part of the space exhibits a gap in the density of states, like in a superconductor. This starts at the antinodal points, and spreads through momentum space when lowering the temperature until everywhere is gapped and the sample is superconducting. The area in momentum space that remains ungapped is called the Fermi Arc.
Fermi arcs also appear in some materials with topological properties such as Weyl Semimetals where they represent a surface projection of a two dimensional Fermi contour and are terminated onto the projections of the Weyl fermion nodes on the surface.
| 34983327 | https://en.wikipedia.org/wiki?curid=34983327 |
Natural_sciences | Dynamical horizon
In theoretical physics, a dynamical horizon (DH) is a local description (i.e. independent of the global structure of the spacetime) of evolving black hole horizons. In the literature there exist two different mathematical formulations of DHs—the 2+2 formulation developed by Sean Hayward and the 3+1 formulation developed by Abhay Ashtekar and others (see ). It provides a description of a black hole that is evolving (e.g. one that has a non-zero mass-energy influx). A related formalism, for black holes with zero influx, is an isolated horizon.
The formal definition of a dynamical horizon is as follows:
| 34992536 | https://en.wikipedia.org/wiki?curid=34992536 |
Natural_sciences | Turbidimetry
Turbidimetry (the name being derived from "turbidity") is the process of measuring the loss of intensity of transmitted light due to the scattering effect of particles suspended in it. Light is passed through a filter creating a light of known wavelength which is then passed through a cuvette containing a solution. A photoelectric cell collects the light which passes through the cuvette. A measurement is then given for the amount of absorbed light.
Turbidimetry can be used in biology to find the number of cells in a solution.
Immunoturbidimetry is an important tool in the broad diagnostic field of clinical chemistry. It is used to determine serum proteins not detectable with classical clinical chemistry methods. Immunoturbidimetry uses the classical antigen-antibody reaction. The antigen-antibody complexes aggregate to form particles that can be optically detected by a photometer.
| 35006277 | https://en.wikipedia.org/wiki?curid=35006277 |
Natural_sciences | Mean High Water
Mean High Water (MHW) is a Tidal Datum representing the average of all the daily tidal high water heights observed over a period of several years. In the United States this period spans 19 years and is referred to as the National Tidal Datum Epoch. The most current MHW values are found in the North American Vertical Datum of 1988 (NAVD 88).
| 35006655 | https://en.wikipedia.org/wiki?curid=35006655 |
Natural_sciences | NGC 1483
NGC 1483 is a barred spiral galaxy located in the southern constellation of Horologium and member of the Dorado Group. The nebulous galaxy features a bright central bulge and diffuse arms with distinct star-forming regions.
| 35013151 | https://en.wikipedia.org/wiki?curid=35013151 |
Natural_sciences | Mongolian Natural History Museum
The Mongolian Natural History Museum () is a repository and research institution located in Ulaanbaatar, Mongolia. The museum was previously known as the Mongolian National Museum or State Central Museum. This change in name has often led to confusion with Ulaanbaatar's other preeminent museum, the National Museum of Mongolia. Although the two museums are located quite close to one another, they contain very different exhibits. The Mongolian National Museum focuses on the archaeology and history of Mongolia, while the Mongolian Natural History Museum is concerned primarily with the flora, fauna, geology and natural history of the country.
The museum includes Departments of Geology, Geography, Flora and Fauna, Paleontology, and Anthropology encompassing the natural history of Mongolia. The museum's holdings include more than 6000 specimens, 45% of which are on permanent public display.
The museum is particularly well known for its dinosaur and other paleontological exhibits, among which the most notable are a nearly complete skeleton of a late Cretaceous "Tarbosaurus" tyrannosaurid and broadly contemporaneous nests of "Protoceratops" eggs.
The Museum was established in 1924 as the "National Museum" (). In 1940-1941 the museum became known as the "Rural Research Museum"' () and in 1956 as the "State Central Museum" (). The museum received its current designation after the 1991 democratic revolution.
The current building was erected in 1953, and was deemed to be highly susceptible to natural disasters such as earthquakes in a study made in 2013. It was scheduled to be replaced by a new building, with budgeting planned to start in 2014. The demolition process started despite public anger early in December 2019. . The structure was demolished in the night around 2a.m. on 7 December 2019.
| 35021808 | https://en.wikipedia.org/wiki?curid=35021808 |
Natural_sciences | NGC 49
NGC 49 is a lenticular galaxy in the Andromeda constellation. The galaxy was discovered by the American astronomer Lewis A. Swift on September 7, 1885.
| 35026197 | https://en.wikipedia.org/wiki?curid=35026197 |
Natural_sciences | Human HGF plasmid DNA therapy
Human HGF plasmid DNA therapy of cardiomyocytes is being examined as a potential treatment for coronary artery disease (a major cause of myocardial infarction (MI)), as well as treatment for the damage that occurs to the heart after MI. After MI, the myocardium suffers from reperfusion injury which leads to death of cardiomyocytes and detrimental remodelling of the heart, consequently reducing proper cardiac function. Transfection of cardiac myocytes with human HGF reduces ischemic reperfusion injury after MI. The benefits of HGF therapy include preventing improper remodelling of the heart and ameliorating heart dysfunction post-MI.
Human hepatocyte growth factor (HGF) is an 80kD pleiotropic protein that is endogenously produced by a variety of cell types from the mesenchymal cell lineage (such as cardiomyocytes and neurons). It is produced and proteolytically cleaved to its active state in response to cellular injury or during apoptosis. HGF binds to c-met receptors found on mesenchymal cell types to produce its many different effects such as increased cellular motility, morphogenesis, proliferation and differentiation. Research has shown that HGF has potent angiogenic, anti-fibrotic, and anti-apoptotic properties. It has also been shown to act as a chemoattractant for adult mesenchymal stem cells via c-met receptor binding.
Animal research has demonstrated that administration of HGF cDNA plasmids into ischemic cardiac tissue can increase cardiac function (improved left ventricular ejection fraction and fractional shortening compared to control subjects) after induced MI or ischemia. Transfection with HGF plasmids in damaged cardiac tissue also promotes angiogenesis (increased capillary density compared to control subjects), as well as decreasing detrimental remodelling of the tissue at the site of injury (decreased fibrotic deposition). The increased production of HGF by transfected cardiomyocytes during injury has also shown to be a powerful chemo-attractant of adult mesenchymal stem cells via HGF/c-Met binding. The mitogenic and morphogenic properties of HGF induce recruited stem cells to take on cardiomyocyte phenotypes, potentially helping in the healing of ischemic tissue.
The benefits of HGF in experimental models have led to its investigation in clinical trials. A phase I clinical trial entailed injecting an adenovirus vector with the human HGF (Ad-hHGF) gene into the coronary vessels localized to ischemic tissue. Results demonstrate that it is in fact safe to administer the Ad-hHGF vector into patients with coronary artery disease in hopes of re-vascularizing damaged tissue in patients for which coronary artery bypass surgery (CABG) or percutaneous coronary intervention (PCI) are not available or possible. Despite the trial’s limitations ("i.e." no assessment of left ventricular function and sample size was quite small), upon follow up assessments at 12 months, none of the patients receiving the treatment had been readmitted to hospital for MI, angina or aggravated heart failure.
| 35029495 | https://en.wikipedia.org/wiki?curid=35029495 |
Natural_sciences | Eugène Eudes-Deslongchamps
Eugène Eudes-Deslongchamps (10 March 1830 – 21 December 1889) was a French paleontologist and naturalist born in Caen, the son of paleontologist Jacques Amand Eudes-Deslongchamps (1794–1867). He died at Château Matthieu, Calvados.
Around 1856 he succeeded his father as professor of zoology at the faculty of sciences at the University of Caen, later becoming a professor of geology and dean (1861). After the death of his father in 1867, he devoted himself to the completion of a memoir on the teleosaurs, the joint labours being embodied in his "Prodrome des Téléosauriens du Calvados". He contributed several of his memoirs to the Société Linnéenne de Normandie.
| 35030422 | https://en.wikipedia.org/wiki?curid=35030422 |
Natural_sciences | Radio Astronomy Laboratory
The Radio Astronomy Lab (RAL) is an Organized Research Unit (ORU) within the Astronomy Department at the University of California, Berkeley. It was founded by faculty member Harold Weaver in 1958.
Until 2012, RAL maintained a radio astronomy observatory at Hat Creek, near Mt. Lassen. It continues to support on-campus laboratory facilities in Campbell Hall. From 1998 to 2012, the RAL collaborated with the SETI Institute of Mountain View California to design, build and operate the Allen Telescope Array (ATA).
RAL has been central to the creation of several radio observatories, including:
| 35035679 | https://en.wikipedia.org/wiki?curid=35035679 |
Natural_sciences | Formate-nitrite transporter
The Formate-Nitrite Transporter (FNT) Family belongs to the Major Intrinsic Protein (MIP) Superfamily. FNT family members have been sequenced from Gram-negative and Gram-positive bacteria, archaea, yeast, plants and lower eukaryotes. The prokaryotic proteins of the FNT family probably function in the transport of the structurally related compounds, formate and nitrite.
With the exception of the yeast protein (627 amino acyl residues), all characterized members of the family are of 256-285 residues in length and exhibit 6-8 putative transmembrane α-helical spanners (TMSs). In one case, that of the "E. coli" FocA (TC# 1.A.16.1.1) protein, a 6 TMS topology has been established. The yeast protein has a similar apparent topology but has a large C-terminal hydrophilic extension of about 400 residues.
FocA of "E. coli" is a symmetriv pentamer, with each subunit consisting of six TMSs.
The phylogenetic tree shows clustering according to function and organismal phylogeny. The putative formate efflux transporters (FocA; TC#s 1.A.16.1.1 and 1.A.16.1.3) of bacteria associated with pyruvate-formate lyase (pfl) comprise cluster I; the putative formate uptake permeases (FdhC; TC#s 1.A.16.2.1 and 1.A.16.2.3) of bacteria and archaea associated with formate dehydrogenase comprise cluster II; the nitrite uptake permeases (NirC, TC#s 1.A.16.2.5, 1.A.16.3.1, and 1.A.16.3.4) of bacteria comprise cluster III, and a yeast protein comprises cluster IV.
The energy coupling mechanisms for proteins of the FNT family have not been extensively characterized. HCO and NO uptakes may be coupled to H symport. HCO efflux may be driven by the membrane potential by a uniport mechanism or by H antiport. FocA of "E. coli" catalyzes bidirectional formate transport and may function by a channel-type mechanism.
FocA, transports short-chain acids. FocA may be able to switch its mode of operation from a passive export channel at high external pH to a secondary active formate/H+ importer at low pH. The crystal structure of "Salmonella typhimurium" FocA at pH 4.0 shows that this switch involves a major rearrangement of the amino termini of individual protomers in the pentameric channel. The amino-terminal helices open or block transport in a concerted, cooperative action that indicates how FocA is gated in a pH-dependent way. Electrophysiological studies show that the protein acts as a specific formate channel at pH 7.0 and that it closes upon a shift of pH to 5.1.
The probable transport reactions catalyzed by different members of the FNT family are:
(1) RCO or NO (out) ⇌ RCO or NO (in),
(2) HCO (in) ⇌ HCO (out),
(3) HS (out) ⇌ HS (in).
A representative list of the currently classified members belonging to the FNT family can be found in the Transporter Classification Database. Some characterized members include:
| 35038842 | https://en.wikipedia.org/wiki?curid=35038842 |
Natural_sciences | Nucleobase cation symporter-2
The Nucleobase cation symporter-2 (NCS2) family, also called the Nucleobase ascorbate transporter (NAT) family, consists of over 1000 sequenced proteins derived from gram-negative and gram-positive bacteria, archaea, fungi, plants and animals. The NCS2/NAT family is a member of the APC Superfamily of secondary carriers. Of the five known families of transporters that act on nucleobases, NCS2/NAT is the only one that is most widespread. Many functionally characterized members are specific for nucleobases including both purines and pyrimidines, but others are purine-specific. However, two closely related rat/human members of the family, SVCT1 and SVCT2, localized to different tissues of the body, co-transport L-ascorbate (vitamin C) and Na with a high degree of specificity and high affinity for the vitamin. Clustering of NCS2/NAT family members on the phylogenetic tree is complex, with bacterial proteins and eukaryotic proteins each falling into at least three distinct clusters. The plant and animal proteins cluster loosely together, but the fungal proteins branch from one of the three bacterial clusters forming a tighter grouping. "E. coli" possesses four distantly related paralogous members of the NCS2 family.
Proteins of the NCS2 family are 414–650 amino acyl residues in length and probably possess 14 TMSs. Lu et al. (2011) have concluded from x-ray crystallography that UraA (2.A.40.1.1) has 14 TMSs with two 7 TMS inverted repeats. Uracil is located at the interface between the two domains.
Uracil permease, UraA UraA with bound uracil at 2.8Å resolution .
The generalized transport reactions catalyzed by proteins of the NAT/NCS2 family are:
Several proteins make up the NCS2/NAT family. A full list of these proteins can be found in the Transporter Classification Database.
A few types of proteins that make up the NCS2/NAT family include:
| 35039952 | https://en.wikipedia.org/wiki?curid=35039952 |
Natural_sciences | SPEX (astronomy)
The SPEX (Spectropolarimeter for Planetary Exploration) is a single-channel, high-precision polarimeter for the characterization of planetary atmospheres. It is intended for planetary science missions, but it could, with minor modifications, also be used for Earth observation by a microsatellite, such as the Dutch FAST-D project.
| 35043822 | https://en.wikipedia.org/wiki?curid=35043822 |
Natural_sciences | Abell 133
Abell 133 is a galaxy cluster in the Abell catalogue.
| 35045841 | https://en.wikipedia.org/wiki?curid=35045841 |
Natural_sciences | Abell 262
Abell 262 is a galaxy cluster in the Abell catalogue. It is part of the Perseus-Pisces Supercluster, one of the largest known structures in the universe. Although its central galaxy, NGC 708, is a giant cD galaxy, most of its bright galaxies are spirals, which is unusual for a galaxy cluster. With approximately 200 members it is a comparatively small cluster.
| 35045866 | https://en.wikipedia.org/wiki?curid=35045866 |
Natural_sciences | Abell 478
Abell 478 is a galaxy cluster listed in the Abell catalogue.
| 35045919 | https://en.wikipedia.org/wiki?curid=35045919 |
Natural_sciences | Abell 907
Abell 907 is a galaxy cluster in the Abell catalogue.
| 35045936 | https://en.wikipedia.org/wiki?curid=35045936 |
Natural_sciences | Abell 1413
Abell 1413 is a galaxy cluster in the Abell catalogue. The Abell catalogue was published by George O. Abell in 1958 while working on his PhD at California Institute of Technology. The catalogue has two different surveys. The Northern survey was done first by Abell in 1958 with the help of A.G .Wilson. The Northern Survey has 2,712 clusters, and in order for a cluster to be put into the catalogue it must pass four criteria. The first criterion is richness, and Abell divided the clusters into 6 different richness groups. Group 0 was 30-49 galaxies, Group 1 was 50-79 galaxies, Group 2 was 80-129 galaxies, Group 3 was 130 to 199 galaxies, Group 4 was 200-299 galaxies, and Group 5 was more than 299 galaxies. The second criterion was compactness .To meet this requirement a cluster must have 50 or more members in one counting radius of the cluster's center. The third criterion is distance. A cluster must have a nominal redshift between .02 and .2, which means a recessional velocity is between 6,000 and 60,000 km/s. The fourth and final criterion was galactic latitude. Areas around the milky way were excluded because it was difficult to identify galaxy clusters. The Southern survey was done in 1989 and added 1,361 clusters using the same criteria as the Northern Survey.
Abell 1413 is located 2 billion light years away from Earth between the constellations of Leo and Coma Berenices. It is one of 4,073 clusters of galaxies at redshift (meaning they are moving away from earth,) that are somewhat close to the Earth. Abell 1413 holds about 300 galaxies together with its strong gravity. Due to the strong interactions in the cluster, the material is heated up to 100 million degrees. Because of this intense heat, strong X-ray radiation is emitted from the cluster. Scientists using the Canada-France-Hawaii telescope observed Abell 1413 and built a sample of over 250 galaxies. These scientists consider Abell 1413 relaxed even though it has a highly elliptical shape. The scientists also concluded that the cluster ellipticity at large radii is around .35 while the cluster ellipticity at the center is about .8, and that the cluster is aligned in the North-South direction, a few degrees westward.
| 35045954 | https://en.wikipedia.org/wiki?curid=35045954 |
Natural_sciences | Abell 1795
Abell 1795 is a galaxy cluster in the Abell catalogue.
In January 2014, Chandra X-Ray Observatory claimed to have made discovery of a new supermassive black hole candidate disrupting star in the Abell 1795.
| 35046050 | https://en.wikipedia.org/wiki?curid=35046050 |
Natural_sciences | Abell 1991
Abell 1991 is a galaxy cluster in the Abell catalogue.
| 35046060 | https://en.wikipedia.org/wiki?curid=35046060 |
Natural_sciences | Abell 2390
Abell 2390 is a galaxy cluster in the Abell catalogue.
| 35046077 | https://en.wikipedia.org/wiki?curid=35046077 |
Natural_sciences | Cation diffusion facilitator
Cation diffusion facilitators (CDFs) are transmembrane proteins that provide tolerance of cells to divalent metal ions, such as cadmium, zinc, and cobalt. These proteins are considered to be efflux pumps that remove these divalent metal ions from cells. However, some members of the CDF superfamily are implicated in ion uptake. All members of the CDF family possess six putative transmembrane spanners with strongest conservation in the four N-terminal spanners. The Cation Diffusion Facilitator (CDF) Superfamily includes the following families:
The CDF family (TC# 2.A.4) is a ubiquitous family, members of which are found in bacteria, archaea and eukaryotes. They transport heavy metal ions, such as cadmium, zinc, cobalt, nickel, copper and mercuric ions. There are 9 mammalian paralogues, ZnT1 - 8 and 10. Most proteins from the family have six transmembrane helices, but MSC2 of "S. cerevisiae") and Znt5 and hZTL1 of "H. sapiens" have 15 and 12 predicted TMSs, respectively. These proteins exhibit an unusual degree of sequence divergence and size variation (300-750 residues). Eukaryotic proteins exhibit differences in cell localization. Some catalyze heavy metal uptake from the cytoplasm into various intracellular eukaryotic organelles (ZnT2-7) while others (ZnT1) catalyze efflux from the cytoplasm across the plasma membrane into the extracellular medium. Thus, some are found in plasma membranes while others are in organellar membranes such as vacuoles of plants and yeast and the golgi of animals. They catalyze cation:proton antiport, have a single essential zinc-binding site within the transmembrane domains of each monomer within the dimer, and have a binuclear zinc-sensing and binding site in the cytoplasmic C-terminal region. A representative list of proteins belonging to the CDF family can be found in the Transporter Classification Database.
Prokaryotic and eukaryotic proteins cluster separately but may function with the same polarity by similar mechanisms. These proteins are secondary carriers which utilize the proton motive force (pmf) and function by H antiport (for metal efflux). One member, CzcD of "Bacillus subtilis" (TC# 2.A.4.1.3) "," has been shown to exchange the divalent cation (Zn or Cd ) for two monovalent cations (K and H ) in an electroneutral process energized by the transmembrane pH gradient. Another, ZitB of "E. coli" (TC #2.A.4.1.4), has been reconstituted in proteoliposomes and studied kinetically. It appears to function by simple Me:H antiport with a 1:1 stoichiometry.
Montanini et al. (2007) have conducted phylogenetic analysis of CDF family members. Their analysis revealed three major and two minor phylogenetic groups. They suggest that the three major groups segregated according to metal ion specificity:
X-ray structure of YiiP of "E. coli" represents a homodimer.
Coudray et al. (2013) used cryoelectron microscopy to determine a 13 Å resolution structure of a YiiP homolog from "Shewanella oneidensis" within a lipid bilayer in the absence of Zn. Starting from the x-ray structure in the presence of Zn, they used molecular dynamic flexible fitting to build a model. Comparison of the structures suggested a conformational change that involves pivoting of a transmembrane, four-helix bundle (M1, M2, M4, and M5) relative to the M3-M6 helix pair. Although accessibility of transport sites in the x-ray model indicates that it represents an outward-facing state, their model was consistent with an inward-facing state, suggesting that the conformational change is relevant to the alternating access mechanism for transport. They speculated that the dimer may coordinate rearrangement of the transmembrane helices.
Involved in metal tolerance/resistance by efflux, most CDF proteins share a two-modular architecture consisting of a transmembrane domain (TMD) and a C-terminal domain (CTD) that protrudes into the cytoplasm. A Zn and Cd CDF transporter from the marine bacterium, "Maricaulis maris," that does not possess the CTD is a member of a new, CTD-lacking subfamily of CDFs.
The generalized transport reaction for CDF family members is:
Me (in) H (out) ± K (out) → Me (out) H (in) ± K (in).
| 35049854 | https://en.wikipedia.org/wiki?curid=35049854 |
Natural_sciences | Characteristic number (fluid dynamics)
Characteristic numbers are dimensionless numbers used in fluid dynamics to describe a character of the flow. To compare a real situation (e.g. an aircraft) with a small-scale model it is necessary to keep the important characteristic numbers the same. Names of these numbers were standardized in ISO 31, part 12.
| 35066988 | https://en.wikipedia.org/wiki?curid=35066988 |
Natural_sciences | NGC 1721
NGC 1721 is a lenticular galaxy (S0) located in the constellation Eridanus. It was discovered on the 10th of Nov 1885 by Edward Emerson Barnard. This galaxy is a member of the NGC 1723 Group—consisting of NCG 1723 (the brightest member, 11.7-mag) and a close triplet of NGC 1721, NGC 1725 and NGC 1728.
NGC 1721 is a Dreyer Object (a now archaic astronomical term), meaning that it was included in the original New General Catalogue by JLE Dreyer.
| 35081362 | https://en.wikipedia.org/wiki?curid=35081362 |
Natural_sciences | NGC 1723
NGC 1723 is a barred spiral galaxy in the constellation Eridanus. The galaxy is listed in the New General Catalogue.
| 35081527 | https://en.wikipedia.org/wiki?curid=35081527 |
Natural_sciences | NGC 1725
NGC 1725 is a lenticular galaxy in the constellation Eridanus. The galaxy is listed in the New General Catalogue.
| 35081616 | https://en.wikipedia.org/wiki?curid=35081616 |
Natural_sciences | NGC 1728
NGC 1728 is a spiral galaxy in the constellation Eridanus. The galaxy is listed in the New General Catalogue.
| 35081649 | https://en.wikipedia.org/wiki?curid=35081649 |
Natural_sciences | Punga Mare
Punga Mare is a lake in the north polar region of Titan, the planet Saturn's largest moon. After Kraken Mare and Ligeia Mare, it is the third largest known body of liquid on Titan. It is composed of liquid hydrocarbons (mainly methane and ethane). Located almost adjacent to the north pole at 85.1° N, 339.7° W, it measures roughly 380 km (236 mi) across, greater than the length of Lake Victoria on Earth. Its namesake is Punga, in Māori mythology ancestor of sharks, rays and lizards and a son of Tangaroa, the god of the sea.
| 35088019 | https://en.wikipedia.org/wiki?curid=35088019 |
Natural_sciences | Endre Krolopp
Endre Krolopp (1935–2010) was a Hungarian malacologist, who published over 200 scientific papers and books, mainly on Quaternary molluscs.
| 35092504 | https://en.wikipedia.org/wiki?curid=35092504 |
Natural_sciences | Abell 665
Abell 665 is a galaxy cluster in the Abell catalogue in the constellation Ursa Major. It is also known as the only cluster in his 1989 catalog to receive Abell's highest richness class of 5. This means that it contains "at least" 300 galaxies in the magnitude range of m to m+2, where m is the magnitude of the third-brightest member of the cluster. The clusters in all other richness classes contain less than 300 such galaxies. Abell 665's combination of high brightness and large distance, made it an excellent candidate along with 37 other clusters to help determine the Hubble constant using the Sunyaev–Zel'dovich effect in 2006.
Member velocity, cluster velocity dispersion, and X-ray data suggest that Abell 665 is composed of two similar-mass clusters which are at or very close to core crossing, give or take ≲ 0.5 gigayears.
| 35093839 | https://en.wikipedia.org/wiki?curid=35093839 |
Natural_sciences | Jingpo Lacus
Jingpo Lacus is a lake in the north polar region of Titan, the planet Saturn's largest moon. It and similarly sized Ontario Lacus are the largest known bodies of liquid on Titan after the three maria (Kraken Mare, Ligeia Mare and Punga Mare). It is composed of liquid hydrocarbons (mainly methane and ethane). It is west of Kraken Mare at 73° N, 336° W, roughly 240 km (150 mi) long, similar to the length of Lake Onega on Earth. Its namesake is Jingpo Lake, a lake in China.
On 8 July 2009, "Cassini"'s Visual and Infrared Mapping Spectrometer (VIMS) observed a specular reflection in 5 µm infrared light off Jingpo Lacus at 71° N, 337° W. (This has sometimes been described less accurately as at the southern shoreline of Kraken Mare.) Specular reflections indicate a smooth, mirror-like surface, so the observation corroborated the inference of the presence of a large liquid body drawn from radar imaging. The observation was made soon after the north polar region emerged from 15 years of winter darkness.
| 35105378 | https://en.wikipedia.org/wiki?curid=35105378 |
Natural_sciences | George Kenneth Green
George Kenneth Green, also called Kenneth Green, (1911 – August 1997) was an American accelerator physicist.
Green studied at the University of California, Berkeley, where he belonged to the group of Ernest Lawrence. Later, he worked at Brookhaven National Laboratory (BNL) with Milton Stanley Livingston. After the discovery of Strong focusing by Ernest Courant et al., Green implemented the idea into the design of the Alternating Gradient Synchrotron, collaborating with John Blewett.
He was later working on the proposal for the National Synchrotron Light Source, which construction was begun in 1978.
Collaborating with Renate Chasman, he developed the Chasman-Green lattice, which was later used for storage rings of synchrotron light sources.
| 35111617 | https://en.wikipedia.org/wiki?curid=35111617 |
Natural_sciences | Ananda Chandra Dutta
Ananda Chandra Dutta () (8 February 1923 – 16 January 2016) was an Indian botanist of Assam. He was born at Chekonidhara village of Jorhat. He started his career as a teacher in Mariani Middle English High School in 1944-45 and then joined the Tocklai Tea Research Institute in 1947. Dutta played a major role in the establishment of a tea museum at Jorhat in 1977. He has also prepared a list of 10,000 trees for the Tocklai herbarium. He was awarded "Degree of Doctor of Science" by Dibrugarh University. He died on 16 January 2016 at his own residence in Jorhat.
| 35118873 | https://en.wikipedia.org/wiki?curid=35118873 |
Natural_sciences | Aleksander Kosiba
Aleksander Kosiba (born 18 January 1901 in Libusza — died 18 September 1981 in Wrocław) was a Polish geographer, geophysicist, glaciologist and climatologist.
Kosiba's undergraduate tertiary studies were at the then Jan Kazimierz University.
He was an honorary member of Norwegian Geographical Society. Kosiba was involved in a Greenland expedition in 1934 by Denmark. There he worked for five months - May to September. In 1978 he published his last scientific work, "The snow, glaciers — ice sheets."
| 35123509 | https://en.wikipedia.org/wiki?curid=35123509 |
Natural_sciences | Gibbons–Hawking ansatz
In mathematics, the Gibbons–Hawking ansatz is a method of constructing gravitational instantons introduced by . It gives examples of hyperkähler manifolds in dimension 4 that are invariant under a circle action.
| 35132005 | https://en.wikipedia.org/wiki?curid=35132005 |
Natural_sciences | Walter Sidney Metcalf
Walter Sidney Metcalf (18 May 1918 – 25 July 2008) was a New Zealand physical chemist.
Walter Metcalf gained a bachelor's degree in music in parallel with his first science degree. He studied for a DPhil degree with E. J. Bowen at Oxford University in England.
Metcalf initially worked at Victoria University of Wellington and moved to Canterbury University College (now the University of Canterbury) in 1954. He retired as a Reader in 1975. Metcalf mainly worked on photochemistry and was awarded the T. K. Sidey Medal by the Royal Society of New Zealand for his research in 1966. Towards the end of his career, he worked on calcium metabolism.
| 35139952 | https://en.wikipedia.org/wiki?curid=35139952 |
Natural_sciences | JPL Small-Body Database
The JPL Small-Body Database (SBDB) is an astronomy database about small Solar System bodies. It is maintained by Jet Propulsion Laboratory (JPL) and NASA and provides data for all known asteroids and several comets, including orbital parameters and diagrams, physical diagrams, and lists of publications related to the small body. The database is updated on a daily basis.
As of August 2013 (planetary ephemeris DE431) close-approach data is available for the major planets and the 16 most massive asteroids. Close approach data is available by adding ";cad=1" to the end of the body's URL.
A Java applet is available and provided as a 3D orbit visualization tool. The applet was implemented using unreliable 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate ephemerides use the JPL Horizons On-Line Ephemeris System that handles the n-body problem using numerical integration. The Java applet is available by adding ";orb=1" to the end of the body's URL.
| 35141200 | https://en.wikipedia.org/wiki?curid=35141200 |