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benjamin bederson is a computer science professor at
benjamin bederson is a computer science professor at the university of maryland, college park, a member of the university of maryland human-computer interaction lab, and a co-founder of zumobi. his father was benjamin bederson, sr., a professor of physics emeritus, new york university.
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31007744c3f450208000404fd3641b10fa506d0c
bederson became inducted into the association for computing
bederson became inducted into the association for computing machinery 's chi academy as a distinguished scientist in 2012 and became an acm distinguished scientist in 2011. in 2010 he and allison druin won the sigchi social impact award for developing the international children's digital library.
wikipedia
4a72c4d86c3549c67822d4397af529832ece24cc
ben bederson received a b.s. in computer science
ben bederson received a b.s. in computer science from rensselaer polytechnic institute in 1986. bederson received his m.s. and ph.d. in computer science in 1987 and 1992 from new york university where he researched zooming user interface.
wikipedia
21d0d680d52bc17b0a40a37e8bc28a06f9a69c1c
bernard rené guinot (1925–2017) was a french astronomer.
bernard rené guinot (1925–2017) was a french astronomer. he is known for his contributions to the establishment of temps atomique international (tai) and the geodetic reference system used in satellite navigation.
wikipedia
ec1762958575e8e7bd421babe9f8c7aecda05078
guinot was elected in 1983 a corresponding member
guinot was elected in 1983 a corresponding member of frances's académie des sciences and in 1988 a member of academia europaea. he was appointed chevalier de l’ordre national du mérite, as well as officier des palmes académiques.
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536d2e8a9b0bfb8b07fe40560534a31eca7abb5a
guinot received cnrs 's médaille de bronze in
guinot received cnrs 's médaille de bronze in 1959. the académie des sciences awarded him in 1959 the prix feycinet, in 1974 the prix deslandres, and in 1991 the prix du cea. he was awarded in 1989 the société astronomique de france 's prix janssen and in 1991 the académie de marine 's prix Émile girardeau. in 1997 he ...
wikipedia
f10e9b61cb99652f356f533b741026e0cd882ba3
in 1979 in the paper basic problems in
in 1979 in the paper basic problems in the kinematics of the rotation of the earth, guinot proposed the use of a new equatorial origin, the "non-rotating origin" (nro), for defining the earth rotation angle (era) in the earth's axial tilt as the basis for universal time. he made important contributions to research on t...
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b9ad05cd05476a2b17699c89a234f3fdccb6a773
on the 1st of october 1964, as the
on the 1st of october 1964, as the successor to nicolas stoyko, guinot became the director of the bureau international de l'heure (bih) and continued his directorship until the bih ceased to exist in 1988. from 1975 to 1979 he was the director of the laboratoire primaire du temp et des frequencies (lptf).
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a33cdcb57dfb3d3eee02d1147df6d89898eae12c
guinot served as a committee member for several
guinot served as a committee member for several commissions of the international astronomical union (iau) and from 1961 to 1967 was the president of the iau's commission 19 rotation of the earth. he served as president for several organizations: the conseil scientifique du service international du mouvement du pôle fro...
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1b0901ac5c5f87cee7ad627e7f7572952fe5b4fe
from 1945 to 1952, guinot served as an
from 1945 to 1952, guinot served as an officer in the messageries maritimes. in 1952 he became an astronomer at the paris observatory, where he worked with andré danjon on applications and further developments of the danjon prismatic astrolabe. the applications were especially concerned with precise determinations of p...
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21d0d680d52bc17b0a40a37e8bc28a06f9a69c1c
bernard rené guinot (1925–2017) was a french astronomer.
bernard rené guinot (1925–2017) was a french astronomer. he is known for his contributions to the establishment of temps atomique international (tai) and the geodetic reference system used in satellite navigation.
wikipedia
799dd9fbea487cb11f8fc6cdc64ec5e8cf7606f5
bentiromide is a peptide used as a screening
bentiromide is a peptide used as a screening test for exocrine pancreatic insufficiency and to monitor the adequacy of supplemental pancreatic therapy. bentiromide is not available in the united states or canada; it was withdrawn in the us in october 1996.
wikipedia
442974e886ff0c675a17714ff80500712973cc2b
it is synthesized by amide formation between ethyl
it is synthesized by amide formation between ethyl p -aminobenzoate and n -benzoyl-tyrosine using n -methyl-morpholine and ethyl chlorocarbonate for activation. the resulting l-amide is selectively hydrolyzed by sequential use of dimsyl sodium (nadmso) and dilute acid to give bentiromide (4).
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fdc6a933d58ea0b6833a6ff2ecc9a222a823e635
bentiromide is given by mouth as a noninvasive
bentiromide is given by mouth as a noninvasive test. it is broken down by the pancreatic enzyme chymotrypsin, yielding p-aminobenzoic acid (paba). the amount of paba and its metabolites excreted in the urine is taken as a measure of the chymotrypsin-secreting activity of the pancreas.
wikipedia
799dd9fbea487cb11f8fc6cdc64ec5e8cf7606f5
bentiromide is a peptide used as a screening
bentiromide is a peptide used as a screening test for exocrine pancreatic insufficiency and to monitor the adequacy of supplemental pancreatic therapy. bentiromide is not available in the united states or canada; it was withdrawn in the us in october 1996.
wikipedia
ffd5300d11828af433e2753b6e79e0d75cabeb6e
allan douglas nicholson was a canadian ice hockey
allan douglas nicholson was a canadian ice hockey left winger. born in estevan, saskatchewan, he played in 19 games for the boston bruins during the 1955–56 and 1956–57 seasons and recorded one assist. the rest of his career, which lasted from 1955 to 1972, was mainly spent in the minor western hockey league.
wikipedia
b9dc0130ae7a4104cb0bc2e1c59dcaa9310a7879
allan douglas nicholson (april 26, 1936 – december
allan douglas nicholson (april 26, 1936 – december 9, 1978) was a canadian ice hockey left winger. born in estevan, saskatchewan, he played in 19 games for the boston bruins during the 1955–56 and 1956–57 seasons and recorded one assist. the rest of his career, which lasted from 1955 to 1972, was mainly spent in the mi...
wikipedia
9d8dd4e2ab4cc6a6efe859439984f41aadbec27b
poornima vijayashanker is an engineer and entrepreneur. she
poornima vijayashanker is an engineer and entrepreneur. she is also a teacher at various tech hubs in san francisco such as general assembly, parisoma and hackbright. she has also started femgineer, a blog and teaching platform.
wikipedia
baabd6f4470f8fef0071c507d402e00accb59dcd
vijayashanker has said that if society wants to
vijayashanker has said that if society wants to see more women in technology careers, then it is important to have more role models for women in technology. she also emphasizes the importance of encouraging women to pursue "hard-core engineering or finance roles" because these jobs are more likely to lead to top positi...
wikipedia
fb1fd3492ac5e3d1ac3b3c9db8dc271a503c7107
in 2014, she gave her first tedx talk
in 2014, she gave her first tedx talk where she discusses why tinkering is useful. in 2015, she released an ebook, titled how to transform your ideas into software products. in 2015, she co-authored " present! a techie's guide to public speaking " with karen catlin.
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f5e75219bc873e3785b61e4d09ea8cdb89dec703
after graduating, vijayashanker started work as a research
after graduating, vijayashanker started work as a research and development engineer at synopsys. vijayashanker was a founding engineer at mint.com when it was a start-up company, where she was also the only woman on staff. vijayashanker was instrumental in building software for mint from scratch. while at mint, she beg...
wikipedia
de36c7c3d088cd9314690fb52c5c0f6407072400
during vijayashanker's childhood, electronics were routinely "taken apart
during vijayashanker's childhood, electronics were routinely "taken apart for fun" at her house. vijayashanker took apart her first computer at age 14. the men in her family were all engineers, but as a child, vijayashanker wanted to be a lawyer because being an engineer didn't seem "glamorous or exciting." vijayashank...
wikipedia
9d8dd4e2ab4cc6a6efe859439984f41aadbec27b
poornima vijayashanker is an engineer and entrepreneur. she
poornima vijayashanker is an engineer and entrepreneur. she is also a teacher at various tech hubs in san francisco such as general assembly, parisoma and hackbright. she has also started femgineer, a blog and teaching platform.
wikipedia
f48f3041bdbba16dc621207c6d8089be6affe6ce
puwanai sangwan (thai: ภูวนัย แสงวรรณ์; born 26 october
puwanai sangwan (thai: ภูวนัย แสงวรรณ์; born 26 october 1995) is a thai actor. he is well-known for his roles in my only 12% (2022) and ai long nhai (2022).
wikipedia
7cfb494088a5be6849ee01b54ba2a92ca94af057
betty wright harris is an american chemist. she
betty wright harris is an american chemist. she is known for her work on the chemistry of explosives completed at los alamos national laboratory. she patented a spot test for detecting 1,3,5-triamino-2,4,6-trinitrobenzene (tatb) in the field, which is used by the federal department of homeland security to screen for ni...
wikipedia
86453d53ce60d4c92df435e4f488d90447a886f2
she has received the new mexico governor's trailblazer
she has received the new mexico governor's trailblazer award, and is recognized as a distinguished african american scientist by the national academy of sciences. she is a member of women in science and engineering and the american association for the advancement of science, and served as president of the new mexico bu...
wikipedia
6a6742b1487501ab161c8648687378306d13e3f1
during a leave of absence from lanl, harris
during a leave of absence from lanl, harris was the chief of chemical technology for solar turbine inc., where she managed the technical laboratories and investigated cold-end corrosion of super alloys, which was caused by sulfuric acid and soot in gas turbine engines. for the last eleven years of harris's career, she ...
wikipedia
5f5df2c9523c759bd2b6f25c2fcde26a1e99ae87
after gaining her phd, she taught chemistry and
after gaining her phd, she taught chemistry and mathematics at mississippi valley state university and southern university. harris subsequently moved to do research at los alamos national laboratory, where she worked in the areas of hazardous waste treatment and environmental remediation as well as explosives chemistry...
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b0ea7ed9fcaa6e10903fb412daed9a6c72f8d7f1
harris was born on 29 july 1940 in
harris was born on 29 july 1940 in ouachita parish, monroe, louisiana. she and her 11 siblings were raised on a farm by henry hudson "jake" and legertha evelyn thompson wright. she attended union central high school, enrolling at southern university at the age of 16. she received her b.s. in chemistry with a minor in m...
wikipedia
46ecddcd04ed3ebf16101d4e7ccd6c8e70201093
betty wright harris (born july 29, 1940) is
betty wright harris (born july 29, 1940) is an american chemist. she is known for her work on the chemistry of explosives completed at los alamos national laboratory. she patented a spot test for detecting 1,3,5-triamino-2,4,6-trinitrobenzene (tatb) in the field, which is used by the federal department of homeland secu...
wikipedia
183c582d9dcb52aaf3c89a33f3168537874936a1
in the mathematical field of analysis, the brezis–lieb
in the mathematical field of analysis, the brezis–lieb lemma is a basic result in measure theory. it is named for haïm brézis and elliott lieb, who discovered it in 1983. the lemma can be viewed as an improvement, in certain settings, of fatou's lemma to an equality. as such, it has been useful for the study of many va...
wikipedia
ba4309c8604f679db6591503876723ddbf782f2f
let (x, μ) be a measure space and
let (x, μ) be a measure space and let f be a sequence of measurable complex-valued functions on x which converge almost everywhere to a function f. the limiting function f is automatically measurable. the brezis–lieb lemma asserts that if p is a positive number, then
wikipedia
183c582d9dcb52aaf3c89a33f3168537874936a1
in the mathematical field of analysis, the brezis–lieb
in the mathematical field of analysis, the brezis–lieb lemma is a basic result in measure theory. it is named for haïm brézis and elliott lieb, who discovered it in 1983. the lemma can be viewed as an improvement, in certain settings, of fatou's lemma to an equality. as such, it has been useful for the study of many va...
wikipedia
46d007aba58e84ab6cbc73513df7723882817cf7
morris selig kharasch was a pioneering organic chemist
morris selig kharasch was a pioneering organic chemist best known for his work with free radical additions and polymerizations. he defined the peroxide effect, explaining how an anti-markovnikov orientation could be achieved via free radical addition. kharasch was born in the russian empire in 1895 and immigrated to th...
wikipedia
e903ac58a0fba0456f21cbb37dfe43245aed16a8
the research conducted by kharasch prompted further studies
the research conducted by kharasch prompted further studies of free radical reactions. from this continued research, industrial polymerization reactions of unsaturated hydrocarbons were discovered and mass production of synthetic rubber and plastics was possible. through similar radical processes, standard alkanes are ...
wikipedia
bb82dbb791f4ac46461e256dd05b14dcf7627cd0
next kharasch observed the effect of different solvents
next kharasch observed the effect of different solvents on the orientation of addition, which his opponents proposed was the cause of other observed anti-markovnikov products. he chose solvents with a wide range of dielectric constants (i.e. polarities). in the presence of air, the solvents with a high dielectric const...
wikipedia
42403706eca2b358683182f061d132c0a11fbf99
because other experimenters had reported anti-markovnikov products and
because other experimenters had reported anti-markovnikov products and had attributed them to other factors, kharasch addressed several variables to see if they also had an effect on the orientation of hbr addition to allyl bromide. although an increase in temperature at first glance seemed to direct the orientation of...
wikipedia
70fe0b046002a41d1628daa0a1eb00f0382351d7
the validity of kharasch's proposal rested on the
the validity of kharasch's proposal rested on the existence of peroxide in the reaction mixture, of which he had no direct evidence. because he had no means of isolating the proposed allyl bromide peroxide, he performed an adapted version of the thiocyanate test, an analytical test that is often employed to check shelf...
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298362a9f8b8019fc683913fdc0d43593eb04d0b
once kharasch began determining the dibromopropane compositions of
once kharasch began determining the dibromopropane compositions of the products under various conditions, he made a startling discovery. when allyl bromide reacted with hbr in vacuo (in the absence of air or other oxygen source), the average reaction time took about 10 days with an approximate yield of 88%, the majorit...
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c941212d23cdc1a1fc25fcb18ebcf290f9dcb8ba
once kharasch began determining the dibromopropane compositions of
hbr molecule would cause the abstraction of another h atom and would complete the anti-markovnikov addition. since the br radical is regenerated, the reaction would continue to proceed at a fairly quick pace until the reactants were exhausted and/or the radical species were terminated.
wikipedia
9e385bba0d1e48b0590d8bc5cb3a80fdcaa0f15e
kharasch, in his seminal 1933 paper entitled "the
kharasch, in his seminal 1933 paper entitled "the addition of hydrogen bromide to allyl bromide", proposed that the anti-markovnikov addition of hbr to allyl bromide to yield 1,3-dibromopropane was due to the presence of peroxides. he termed this the "peroxide effect", which he proposed proceeds through a free radical ...
wikipedia
63d1ee58e6eb29f2f4121b91e86ebbbd7775e75a
in 1869, a russian chemist named vladimir markovnikov
in 1869, a russian chemist named vladimir markovnikov demonstrated that the addition of hbr to alkenes usually but not always resulted in a specific orientation. markovnikov's rule, which stems from these observations, states that in the addition of hbr or another hydrogen halide to an alkene, the acidic proton will ad...
wikipedia
a26c95ab99e8f75975a2cff3be477aba422710cb
when world war ii began, the us government
when world war ii began, the us government recognized the need for a synthetic rubber and employed the best chemists around to aid in this effort. in 1942, kharasch joined the american synthetic rubber research program and applied his knowledge of radical reactions to aid in the polymerization of synthetic styrene. in ...
wikipedia
f301468ae6ec6c2a6be29762f10dd4b29e6d3a04
most of his research in the 1920s focused
most of his research in the 1920s focused on organo-mercuric derivatives. he synthesized an important anti-microbial alkyl mercuric sulfur compound, thimerosal, commercially known as merthiolate, which he patented in 1928 and assigned to the pharmaceutical company eli lilly and company. merthiolate was introduced as a ...
wikipedia
49185de4e34f55a7b702017dda79b6c9f235cbad
morris selig kharasch (august 24, 1895 – october
morris selig kharasch (august 24, 1895 – october 9, 1957) was a pioneering organic chemist best known for his work with free radical additions and polymerizations. he defined the peroxide effect, explaining how an anti-markovnikov orientation could be achieved via free radical addition. kharasch was born in the russian...
wikipedia
116567af4676e715ffc730875f210c1c66a00070
in enzymology, an alcohol dehydrogenase [nad(p)+] (ec 1.1.1.71)
in enzymology, an alcohol dehydrogenase [nad(p)+] (ec 1.1.1.71) is an enzyme that catalyzes the chemical reaction the 3 substrates of this enzyme are alcohol, nad+, and nadp+, whereas its 4 products are aldehyde, nadh, nadph, and h+. this enzyme belongs to the family of oxidoreductases, specifically those acting on the...
wikipedia
a4b020ff86f42cf3df5b3659dafcec1e543f1b10
this enzyme belongs to the family of oxidoreductases,
this enzyme belongs to the family of oxidoreductases, specifically those acting on the ch-oh group of donor with nad or nadp as acceptor. the systematic name of this enzyme class is alcohol:nad(p) oxidoreductase. other names in common use include retinal reductase, aldehyde reductase (nadph/nadh), and alcohol dehydroge...
wikipedia
86cd1ca058e8c35f13738105f8ba559f4b06d5f9
sheena josselyn is a canadian neuroscientist and a
sheena josselyn is a canadian neuroscientist and a full professor of psychology and physiology at hospital for sick children and the university of toronto. josselyn studies the neural basis of memory, specifically how the brain forms and stores memories in rodent models. she has made critical contributions to the field...
wikipedia
3275e759293e2fdd5cd0ff971f9ccf457a6646de
after finishing her postdoctoral work, josselyn moved back
after finishing her postdoctoral work, josselyn moved back to toronto to start her lab at sickkids hospital at the university of toronto. her overall goal is to understand how humans learn and remember such that one day her work can impact translational research at her institute and in her community. some of josselyn's...
wikipedia
7cff7a21422415877a054c9ec2781744c4dc6e57
josselyn then moved to toronto to complete her
josselyn then moved to toronto to complete her phd in psychology and neuroscience at the university of toronto. under the mentorship of dr. franco vaccarino, josselyn studied the effects of cckb and ccka modulation on associative learning and published multiple first author papers. following her phd, josselyn completed...
wikipedia
a9e37c486567729ae758d95fa3ef7426032f46f3
josselyn was born in cleveland, ohio but grew
josselyn was born in cleveland, ohio but grew up in kingston, ontario, canada. josselyn completed her undergraduate education at queens university in kingston, ontario, canada. following her undergraduate degree, josselyn completed a master's degree in clinical psychology under the mentorship of dr. rick beninger. in h...
wikipedia
86cd1ca058e8c35f13738105f8ba559f4b06d5f9
sheena josselyn is a canadian neuroscientist and a
sheena josselyn is a canadian neuroscientist and a full professor of psychology and physiology at hospital for sick children and the university of toronto. josselyn studies the neural basis of memory, specifically how the brain forms and stores memories in rodent models. she has made critical contributions to the field...
wikipedia
bb5cdb828092a1c4d315be520eba2ff593c302dd
boss is a surname of european origin, mainly
boss is a surname of european origin, mainly germanic. in english boss comes from the nickname for a hunchback, or bossu in old french meaning ‘hunchbacked’ (a derivative of bosse ‘lump’, ‘hump’. from french it can also be compared to bossard. in german it is from a short form of the personal name borkhardt, a variant ...
wikipedia
17525810feefe023392b6d4fa28aa42bc4f70242
in english boss comes from the nickname for
in english boss comes from the nickname for a hunchback, or bossu in old french meaning ‘hunchbacked’ (a derivative of bosse ‘lump’, ‘hump’. from french it can also be compared to bossard. in german it is from a short form of the personal name borkhardt, a variant of burkhart, and possibly a differed spelling of south ...
wikipedia
8a90092bc1136b62be08717bc7863368880b9911
qinglong railway bridge is a concrete arch bridge
qinglong railway bridge is a concrete arch bridge located in qinglong county, guizhou. the bridge forms part of the high speed railway line between guiyang and kunming. it crosses the beipan river just downstream of the guangzhao dam. the bridge is almost 300 metres above the river. when it opened in 2015, xinhua news ...
wikipedia
8a90092bc1136b62be08717bc7863368880b9911
qinglong railway bridge is a concrete arch bridge
qinglong railway bridge is a concrete arch bridge located in qinglong county, guizhou. the bridge forms part of the high speed railway line between guiyang and kunming. it crosses the beipan river just downstream of the guangzhao dam. the bridge is almost 300 metres above the river. when it opened in 2015, xinhua news ...
wikipedia
f322c790ece6a3ba240e9ea05ff002b7626a91d1
phosphorus triiodide (pi3) is an inorganic compound with
phosphorus triiodide (pi3) is an inorganic compound with the formula pi3. a red solid, it is too unstable to be stored for long periods of time; it is, nevertheless, commercially available. it is widely used in organic chemistry for converting alcohols to alkyl iodides. it is also a powerful reducing agent.
wikipedia
48b4ece08ede47841dc98c3123d06713232d1095
phosphorus triiodide is commonly used in the laboratory
phosphorus triiodide is commonly used in the laboratory for the conversion of primary or secondary alcohols to alkyl iodides. the alcohol is frequently used as the solvent, on top of being the reactant. often the pi is made in situ by the reaction of red phosphorus with iodine in the presence of the alcohol; for exampl...
wikipedia
8840e3a994c93832bb347828c017d0ab107444d8
pi is also a powerful reducing agent and
pi is also a powerful reducing agent and deoxygenating agent. it reduces sulfoxides to sulfides, even at −78 °c. meanwhile, heating a 1-iodobutane solution of pi with red phosphorus causes reduction to p i.
wikipedia
a039947ff8ef4cbe7371264c3417f6b373ffe3b4
phosphorus triiodide reacts vigorously with water, producing phosphorous
phosphorus triiodide reacts vigorously with water, producing phosphorous acid (h po) and hydroiodic acid (hi), along with smaller amounts of phosphine and various p-p-containing compounds. alcohols likewise form alkyl iodides, this providing the main use for pi.
wikipedia
060f762fc5c28e19513e392fc767a1ef40233095
although pi is a pyramidal molecule, it has
although pi is a pyramidal molecule, it has only a small molecular dipole because each p-i bond has almost no bond dipole moment. the p-i bond is also weak; pi is much less stable than pbr and pcl, with a standard enthalpy of formation for pi of only −46 kj / mol (solid). the phosphorus atom has an nmr chemical shift o...
wikipedia
0b590633ba7d3075e46455b390780d5d4280b3cd
phosphorus triiodide (pi) is an inorganic compound with
phosphorus triiodide (pi) is an inorganic compound with the formula pi. a red solid, it is too unstable to be stored for long periods of time; it is, nevertheless, commercially available. it is widely used in organic chemistry for converting alcohols to alkyl iodides. it is also a powerful reducing agent.
wikipedia
65873dd2f4ed8de514c746cb10e4901df3bbf0df
shuuchi-kasagami station is a railway station on the
shuuchi-kasagami station is a railway station on the nishikigawa seiryū line in iwakuni, yamaguchi prefecture, japan. it is operated by the nishikigawa railway, a third-sector railway company.
wikipedia
9f7a2b421bb5bf3e53508166b1b80f9efade35ed
shuuchi-kasagami station (守内かさ神駅, shuuchi-kasagami-eki) is a railway station
shuuchi-kasagami station (守内かさ神駅, shuuchi-kasagami-eki) is a railway station on the nishikigawa seiryū line in iwakuni, yamaguchi prefecture, japan. it is operated by the nishikigawa railway, a third-sector railway company.
wikipedia
5c152e441287fc6e296587c1c63a02da667d3f69
alexander schure was an american academic and entrepreneur.
alexander schure was an american academic and entrepreneur. schure founded the new york institute of technology (nyit) in 1955. he also served as the chancellor of nova southeastern university (nsu) from 1970 until 1985.
wikipedia
06880e9722cdc2625163032bfb93896d1fbdf2e3
alexander schure died from complications of alzheimer's disease
alexander schure died from complications of alzheimer's disease on long island on october 29, 2009, at the age of 89. he was survived by his second wife, gail; and four children - dr. barbara schure weinschel, dr. matthew schure (1948-2023), louis schure, and dr. jonathan schure. following his death, former nsu preside...
wikipedia
7c98f5a2457d9df20eb8a8eb2aabff38f607f557
although clark would move on to found silicon
although clark would move on to found silicon graphics and netscape, the rest of the nyit team continued to play key roles as pixar 's animation developed from its first short films in the mid-1980s onward. it can be said that dr. schure's vision and support from 1975 to 1980, and the low-pressure academic research lab...
wikipedia
ae83ec27a209ba3a1db54364d132c57f4247d406
in november 1974 schure hired recent university of
in november 1974 schure hired recent university of utah doctoral graduate edwin catmull to direct nyit's fledgling computer graphics lab, and ensured that the lab received special funding for more than 5 years. in 1979 catmull left to form a computer-graphics group with lucasfilm and the core technical team—including c...
wikipedia
11a544f5c2e776ed206e29d818da2f809510314e
when schure founded nyit, the university had open
when schure founded nyit, the university had open admissions intended to promote education of the underprivileged. because many of these students struggled with math, he hired a comic book artist that could draw the math lessons for them. this approach seemed successful, so schure got the idea to convert the drawn less...
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6b9a33cb36a1642410620f3872ff1f7e9d453012
schure and then-nova university president abraham fischler, ed.d.,
schure and then-nova university president abraham fischler, ed.d., formed a federation between nova and the new york institute of technology. the partnership between the two institutions brought money and new programs to nova university. the money from nyit allowed nova university to remain open during its financial di...
wikipedia
ced8fcfe82004692488a443f66d289907d6e029e
schure is credited with saving nova university, which
schure is credited with saving nova university, which was in deep financial trouble, after he became the school's chancellor in 1970. the university is now called nova southeastern university, and is now the largest private university in florida, with more than 28,000 students as of 2009.
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alexander schure (august 3, 1920 – october 29,
alexander schure (august 3, 1920 – october 29, 2009) was an american academic and entrepreneur. schure founded the new york institute of technology (nyit) in 1955. he also served as the chancellor of nova southeastern university (nsu) from 1970 until 1985.
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908058ca0782cb88d79aab5fd91ea4d882ffb16a
other less efficient methods involve fluorinating pocl using
other less efficient methods involve fluorinating pocl using fluoride salts like sbf or naf. but a mixture of fluorides results from these reactions. an even cheaper source is nacl, caf and p o mixture heated to 500°. industrial scale manufacture is possible with a hf reaction with pocl.
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18785ac9f94ae25fd387c2349618ca18a7461b3f
phosphoric chloride difluoride can be made by the
phosphoric chloride difluoride can be made by the reaction of liquid phosphorus pentachloride with phosphorodifluoridic acid hpo f or diphosphoridic tetrafluoride p o f. this reaction takes place at room temperature up to 60 °c. the pof cl bubbles off as a gas, and can be condensed by cooling with dry ice-acetone mixtu...
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6f2ba1d6ccd6f0976b485127b08e3b135d2bbe98
when mixed with hcl, exchange of halogen atoms
when mixed with hcl, exchange of halogen atoms between molecules is catalysed, and pocl, pocl f, and pof end up in the mixture. hcl can end up in the product due to the starting materials, or contamination by water, and must be removed if pof cl is to be stored.
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the shape of the molecules in pof cl
the shape of the molecules in pof cl is tetrahedral. the p-o distance is 1.426 Å, both p-f distances are 1.514 Å, and the p-cl distance is 1.940 Å. the o–p–f angle is 114.09°, the f–p–f angle is 101.2°, the o–p–cl angle is 118.85°, and the f–p-cl angle 103.22°. in the solid form, there are two inequivalent molecular po...
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4d8da477c6df0b6e5218852ece2fccc4bd445d73
phosphoric chloride difluoride pof cl is a colourless
phosphoric chloride difluoride pof cl is a colourless gas. at one atmosphere pressure the gas condenses to a liquid at 3.1 °c and freezes at −96.4. alternate names are difluorophosphoryl chloride or phosphoryl chloride difluoride.
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aa3895dcc2fc96957ef6a92e56bee283cb3d4782
ramires santos do nascimento, known as ramires, is
ramires santos do nascimento, known as ramires, is a brazilian former professional footballer. a midfielder, he was comfortable playing in either the centre or right midfielder position. he normally played as a box-to-box midfielder role because of his energy in supporting defensive and attacking play. ramires began hi...
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ramires was a central or right-sided midfielder who
ramires was a central or right-sided midfielder who was known in particular for his pace, acceleration, agility, tenacity, hard work ethic, and stamina. he was primarily played in a defensive role in the centre, but had also been employed on the right flank, due to his high work rate, which was particularly useful when...
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ramires scored his first international goal on 7
ramires scored his first international goal on 7 june 2010 against tanzania leading up to the world cup finals in south africa. he scored again later on in the game setting the score to 5–1. in the round of 16 at the world cup, he made a run past three chilean defenders to set up robinho for the third goal in a 3–0 vic...
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on 21 july 2008, ramires was named as
on 21 july 2008, ramires was named as the replacement for robinho on the brazil under-23 team for the 2008 summer olympics at beijing. he appeared four times at the olympics, as brazil went on to earn the third-placed bronze medal.
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on 13 june 2019, ramires returned to brazil
on 13 june 2019, ramires returned to brazil and signed a four-year contract with reigning brasileirão champions palmeiras. on 28 november 2020, ramires and palmeiras parted ways by mutual consent.
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ramires scored his first goal of the 2017
ramires scored his first goal of the 2017 season in the last minute of a 1–0 victory against jeju united in the 2017 afc champions league group stage on 22 february 2017. on 15 march, he scored the only goal of the game against gamba osaka in the afc champions league. his first league goal of the 2017 season came in a ...
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ramires made his debut on 23 february 2016
ramires made his debut on 23 february 2016 against binh duong in the afc champions league. ramires assisted teixeira's opening goal, which was also his first goal for the club, but was sent off in the 94th minute of a 3–2 win against jeonbuk motors in the afc champions league for a push on a jeonbuk player. on 5 march,...
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on 29 january 2016, ramires joined chinese club
on 29 january 2016, ramires joined chinese club jiangsu suning on a four-year contract with the transfer fee being a reported £25 million. the fee was a chinese record, but was broken twice in the following ten days with the acquisitions of fellow south americans jackson martínez and alex teixeira, the latter teaming u...
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c764900f1583cd65fd809c5a7cf2d59415194679
on 29 october 2015, ramires signed a four-year
on 29 october 2015, ramires signed a four-year contract extension with chelsea. however, after guus hiddink replaced josé mourinho as head coach of the club, ramires found himself reserved to the substitutes' bench, even though he was in the starting line-up 15 of 23 times.
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ramires was named in the starting 11 for
ramires was named in the starting 11 for chelsea's match against crystal palace on 3 may 2015, but was taken ill before kick-off with kidney illness. he missed the match, which chelsea won 1–0 to win the league title. the league victory meant that, along with his teammates gary cahill, john terry, branislav ivanović an...
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on 24 september 2013, ramires scored his first
on 24 september 2013, ramires scored his first goal of the 2013–14 season against swindon town in the football league cup. on 28 september, he made his 100th premier league appearance in a 1–1 draw with tottenham hotspur. on 1 october, he scored twice as chelsea beat steaua bucurești 4–0 in the group stage of the uefa ...
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on 10 march 2013, ramires scored yet another
on 10 march 2013, ramires scored yet another goal against manchester united, the equaliser in a 2–2 draw at old trafford in the fa cup sixth round. in chelsea's second-to-last premier league game of the season, away to aston villa, ramires picked up two yellow cards in the first half and was sent off. however, chelsea ...
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ramires played all of the 2012 fa community
ramires played all of the 2012 fa community shield and assisted fernando torres for the opener and filled in for branislav ivanović at right back after the serbian was sent off for a foul on aleksandar kolarov, with the team eventually losing 2–3 to manchester city. he scored his first goal of the 2012–13 season agains...
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ramires ended a personally successful season by being
ramires ended a personally successful season by being nominated for the chelsea player of the year award, but lost to midfielder juan mata. however, ramires did win the players' player of the year award and goal of the year award for his chip against barcelona, his second successive win, while scoring 12 goals, 9 assis...
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on 5 may, ramires took a pass from
on 5 may, ramires took a pass from juan mata and scored at pepe reina 's near post against liverpool in the fa cup final, helping chelsea to a 2–1 victory with the help of a second strike from didier drogba. ramires later scored his fifth premier league goal against liverpool at anfield; chelsea, however, went on to lo...
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on 18 april, ramires took a pass from
on 18 april, ramires took a pass from frank lampard and setup didier drogba's extra time goal in chelsea's shocking 1–0 victory over barcelona in the first leg of the champions league semi-finals at stamford bridge. ramires, already booked during the first leg, received a yellow card in the second leg at camp nou, whic...
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on 5 march 2012, ramires signed a new
on 5 march 2012, ramires signed a new five-year contract which would have kept him at chelsea until 2017. ramires also scored against tottenham hotspur in the fa cup semi-final, helping his team defeat their rivals 5–1 on the day and progressing to the final.
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ramires scored his fifth goal of the season
ramires scored his fifth goal of the season in a decisive champions league encounter against spanish side valencia, a 3–0 victory. he scored his sixth goal of the season against wolverhampton wanderers in a 2–1 away win, lifting the ball from a tight position into the top left corner of the goalpost, leaving wolves' go...
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on 24 september 2011, ramires scored two goals
on 24 september 2011, ramires scored two goals in a 4–1 victory over swansea city in the premier league. he then scored a goal against everton, sliding the ball in from a juan mata cross. however, he suffered a knee injury shortly after, but the match ended 3–1 for chelsea. this was his 50th appearance for the club. on...
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on 20 march, ramires scored his second premier
on 20 march, ramires scored his second premier league goal in a 2–0 win over manchester city at stamford bridge. he scored alongside fellow brazilian david luiz and made a superb individual effort, dribbling past three city defenders and scoring past joe hart in the top-left corner, which earned him "goal of the season...
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on 29 december 2010, ramires started in chelsea's
on 29 december 2010, ramires started in chelsea's 1–0 win over bolton wanderers, where his performance was praised and was known to have his best game with chelsea to date, where he made several runs forward and strong tackles winning the ball several times in the midfield. on chelsea's return fixture at bolton, ramire...
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dae1abb27757632e65cdce8285bb8b5c0bb10e26
on 28 august 2010, ramires made his debut
on 28 august 2010, ramires made his debut for chelsea against stoke city in the premier league; he came on as an 84th minute substitute for michael essien as chelsea won 2–0. on 11 september 2010, he made his full premier league debut, starting against west ham united at upton park, playing the full 90 minutes in a 1–3...
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on 4 august 2010, benfica announced they had
on 4 august 2010, benfica announced they had agreed a deal with defending english premier league champions chelsea and his third-party owner for €22 million. he completed his move to chelsea on 13 august, signing a four-year contract. he was handed the number 7 shirt, previously worn by ukrainian international andriy s...
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