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bb0f412d155bfb993619c306dfc67e3ebee6b401
manifold alignment can be used to find linear
manifold alignment can be used to find linear (feature-level) projections, or nonlinear (instance-level) embeddings. while the instance-level version generally produces more accurate alignments, it sacrifices a great degree of flexibility as the learned embedding is often difficult to parameterize. feature-level projec...
wikipedia
cedf924f708993471f5dfa41582fbac4b3c48b1a
the algorithm described above requires full pairwise correspondence
the algorithm described above requires full pairwise correspondence information between input data sets; a supervised learning paradigm. however, this information is usually difficult or impossible to obtain in real world applications. recent work has extended the core manifold alignment algorithm to semi-supervised, u...
wikipedia
acbbd5e1d53a9512622f00a2a198adc19b0fa5e8
arg min ϕ x, ϕ y μ ∑
arg min ϕ x, ϕ y μ ∑ i, j ‖ ϕ x (x i) − ϕ x (x j) ‖ 2 s x, i, j + μ ∑ i, j ‖ ϕ y (y i) − ϕ y (y j) ‖ 2 s y, i, j + (1 − μ) ∑ i, j ‖ ϕ x (x i) − ϕ y (y j) ‖ 2 w i, j {\displaystyle \arg \min _{\phi _{x},\phi _{y}}\mu \sum _{i,j}\left\vert \phi _{x}\left(x_{i}\right)-\phi _{x}\left(x_{j}\right)\right\vert ^{2}s_{x,i,j}+\...
wikipedia
1f3ea931b0350eee0fbda34a4ab36d024ef37a11
finally, introduce a coefficient 0 ≤ μ ≤
finally, introduce a coefficient 0 ≤ μ ≤ 1 {\displaystyle 0\leq \mu \leq 1}, which can be tuned to adjust the weight of the 'preserve manifold structure' goal, versus the 'minimize corresponding point distances' goal.
wikipedia
b64dcaf99962764537653c0e5b180b7db4bcf6c6
w i, j = { 1 i f
w i, j = { 1 i f x i ↔ y j 0 o t h e r w i s e {\displaystyle w_{i,j}={\begin{cases}1&if\,x_{i}\leftrightarrow y_{j}\\0&otherwise\end{cases}}}
wikipedia
e749a722735f30b726e1a99216bd491eecf9c6c5
manifold alignment algorithms attempt to project both x
manifold alignment algorithms attempt to project both x {\displaystyle x} and y {\displaystyle y} into a new d -dimensional space such that the projections both minimize distance between corresponding points and preserve the local manifold structure of the original data. the projection functions are denoted:
wikipedia
390802057c020d5bb11e5c8f125ed988fbf158e2
consider the case of aligning two data sets,
consider the case of aligning two data sets, x {\displaystyle x} and y {\displaystyle y}, with x i ∈ r m {\displaystyle x_{i}\in \mathbb {r} ^{m}} and y i ∈ r n {\displaystyle y_{i}\in \mathbb {r} ^{n}}.
wikipedia
5c0b7743c74e502c4dedb3c7b126baa46f3071f1
manifold alignment assumes that disparate data sets produced
manifold alignment assumes that disparate data sets produced by similar generating processes will share a similar underlying manifold representation. by learning projections from each original space to the shared manifold, correspondences are recovered and knowledge from one domain can be transferred to another. most m...
wikipedia
a98d5fc6a9cec34b0b91f2ad3c3b3b7072c20381
manifold alignment is a class of machine learning
manifold alignment is a class of machine learning algorithms that produce projections between sets of data, given that the original data sets lie on a common manifold. the concept was first introduced as such by ham, lee, and saul in 2003, adding a manifold constraint to the general problem of correlating sets of high-...
wikipedia
a344d42bd6dab68c81599848767a60277cb7529f
in early may 2022, petry terminated his contract
in early may 2022, petry terminated his contract with køge and returned to iceland, where he signed for fh hafnarfjördur. with the dismissal of Ólafur jóhannesson and his subsequent reinstatement as head coach of valur, petry found himself again playing for valur. due to persistent knee problems, 30-year-old petry conf...
wikipedia
ef98ed74a03331812ac8cb6ac3262f903b5c2b6f
petry returned to denmark at the end of
petry returned to denmark at the end of the season and signed with danish 1st division club hb køge on 30 december 2020. he made his debut for the club on 13 february 2021 in a 1–1 draw against hobro ik. in the game, he scored the equaliser for køge in the 83rd minute, becoming the 12th player in club history to score ...
wikipedia
edf135658308ca53a4af2b3cb72ad0381167631d
in may 2018, nordsjælland announced on their website
in may 2018, nordsjælland announced on their website that petry would leave the club when his contract expired on 30 june. on 18 august 2018, petry signed a six-month contract with lyngby boldklub. he made 14 appearances in which he scored one goal during his tenure at lyngby.
wikipedia
cae22b616e3948383f7c472357b085c5cc773540
on 28 april 2011, petry was brought on
on 28 april 2011, petry was brought on as a substitute in the danish cup semi-final win over randers, his first appearance for the first team. he signed a new contract on 2 april 2012, extending his contract with nordsjælland to june 2014. the following years, however, were plagued by injuries which meant that petry ne...
wikipedia
ebc4d989ac9b468b061ec640c6b3e0b74cda16e2
cornelius johannes theodoor uphof was a botanist, phycologist,
cornelius johannes theodoor uphof was a botanist, phycologist, and teacher. born in the netherlands, he worked extensively in the university of arizona, at tucson. he was known for initiating the controversy over the taxonomy of hippeastrum.
wikipedia
b5021691d424944ef75eb2bd113c84b8f85dc72c
cornelius johannes theodoor uphof (1886–1969) was a botanist,
cornelius johannes theodoor uphof (1886–1969) was a botanist, phycologist, and teacher. born in the netherlands, he worked extensively in the university of arizona, at tucson.
wikipedia
e829431afdd520d475f0bb4b6cc757d9b536cc8e
luigi fantappiè was an italian mathematician, known for
luigi fantappiè was an italian mathematician, known for work in mathematical analysis and for creating the theory of analytic functionals: he was a student and follower of vito volterra. later in life, he proposed scientific theories of sweeping scope.
wikipedia
eefb63ced7677809c37ddbc2aec0df6183351bf2
in 1941 he discovered that negative entropy has
in 1941 he discovered that negative entropy has qualities that are associated with life: the cause of processes driven by negative energy lies in the future, exactly such as living beings work for a better day tomorrow. a process that is driven by negative entropy will increase order with time, such as all forms of lif...
wikipedia
5dbe07c07238edd782a63340879337ed310185b0
luigi fantappiè was born in viterbo, and studied
luigi fantappiè was born in viterbo, and studied at the university of pisa, graduating in mathematics in 1922. after time spent abroad, he was offered a chair by the university of florence in 1926, and a year later by the university of palermo. he spent the years 1934 to 1939 in the university of são paulo, brazil coll...
wikipedia
a580ebc047231aa54c48f4023ae3321abfdc5595
luigi fantappiè (15 september 1901 – 28 july
luigi fantappiè (15 september 1901 – 28 july 1956) was an italian mathematician, known for work in mathematical analysis and for creating the theory of analytic functionals: he was a student and follower of vito volterra. later in life, he proposed scientific theories of sweeping scope.
wikipedia
9b86737c97dc881bc3c2d9ab3ea978c0aab785ad
batygin's research is primarily aimed at understanding the
batygin's research is primarily aimed at understanding the formation and evolution of planetary systems. in 2010, he and david j. stevenson published a calculation, which showed that hot jupiters can become inflated as a consequence of ohmic dissipation of electrical currents induced through an interaction between ioni...
wikipedia
77126b3f33efde05bfe012ca55943aa955e9f31d
in late 1999, at age 13, konstantin batygin
in late 1999, at age 13, konstantin batygin moved to morgan hill, california, along with his family. he chose to attend the university of california, santa cruz (ucsc) for the beach and the chance to keep playing in his rock band, the seventh season. during his sophomore year as an undergraduate, he met gregory p. laug...
wikipedia
dcf05de03dedc3f21d7defae0c0ea9cbba101a68
konstantin batygin was born in moscow, soviet union.
konstantin batygin was born in moscow, soviet union. his father, yuri konstantinovich batygin, worked as an accelerator physicist in the moscow engineering physics institute until 1994, when he moved along with his wife galina and their family to wakō, japan, and began working at the particle accelerator facility in ri...
wikipedia
5f99b58a9d266993bab29b290a9f012511e005e7
louise sarah natrajan is a british chemist and
louise sarah natrajan is a british chemist and a reader in the department of chemistry at the university of manchester. her research typically is based on actinide chemistry and luminescence spectroscopy, though some of her published research has extended to lanthanide chemistry, transition metal complexes and organic ...
wikipedia
0d7122b35d4b5754d7523aa0c03f62ef49ea4d37
dr. natrajan took part in organizing the newton
dr. natrajan took part in organizing the newton bhabha researcher links workshop along with prof. prasun mandal which was held on 14 to 17 december 2017. the workshop was aimed to bring together young and eminent scientific researchers from the uk and indian institutes towards building international connections and the...
wikipedia
cfdb09e55f4697837ab8f5898b66322a6998e8d7
dr. natrajan has also contributed to organometallic chemistry
dr. natrajan has also contributed to organometallic chemistry (volume 42) where she discussed the use of near infra-red light in both multiphoton and upconversion processes as an alternative technique to luminescence spectroscopy in order to measure the excitation and optical properties of lanthanide complexes.
wikipedia
a32282b552b1f382f779cd60359cebf9d47aba84
in 2020, dr. natrajan participated in a research
in 2020, dr. natrajan participated in a research which showed how u undergoes microbial reduction to form u and u via disproportion of u. this was the first time the mechanism for this process was significantly researched, and the study showed that the microbial reduction occurs via a single electron transfer to u by t...
wikipedia
56aa9031b498ab3d090745017646dca6a2ae2c40
apart from research and lecturing, natrajan and her
apart from research and lecturing, natrajan and her team also actively participates in outreach activities including in science spectacular (2018), pint of science (2018), and soapbox science (2016). she also engages in work related to promotion and development of women in stem. natrajan is also the co-organizer of the...
wikipedia
8aba160b99715ecbb780d1d087f88d61fda4dec9
natrajan's research is generally based on actinide chemistry
natrajan's research is generally based on actinide chemistry and luminescence spectroscopy, though some of her published research has extended to lanthanide chemistry, transition metal complexes and organic chemistry. her group also works with david p. mills and darren willcox at university of manchester.
wikipedia
928a29b0d9674e9a230456f40da0fcb79a4630a3
upon completing her phd, natrajan completed her postdoctoral
upon completing her phd, natrajan completed her postdoctoral research from 2003 - 2004 with prof. marinella mazzanti at cea grenoble in france. she was then appointed as a leverhulme trust funded postdoctoral research assistant with prof. stephen faulkner at the university of manchester from 2005 to 2008 and was an eng...
wikipedia
8b80fae1f4abe308154c4d16a27b7e4c52783957
natrajan completed her mchem in 1999 at university
natrajan completed her mchem in 1999 at university of york. upon graduation, she read her doctor of philosophy degree at university of nottingham with prof. polly arnold on lanthanide and group (iv) (oso) binaphtolates : synthesis and catalysis and successfully gained her phd in 2003.
wikipedia
5f99b58a9d266993bab29b290a9f012511e005e7
louise sarah natrajan is a british chemist and
louise sarah natrajan is a british chemist and a reader in the department of chemistry at the university of manchester. her research typically is based on actinide chemistry and luminescence spectroscopy, though some of her published research has extended to lanthanide chemistry, transition metal complexes and organic ...
wikipedia
aa95321f9019111f7fc1bf7c129c73967fa6b82e
lissa ann martinez is an american ocean engineer
lissa ann martinez is an american ocean engineer and consultant from san antonio, texas. during her career, she has worked on policy-based solutions for environmental challenges. following her graduation from the massachusetts institute of technology (mit), martinez worked as a federal employee for the us maritime admi...
wikipedia
342e87548bc400ce6c1570e5666f856690eff5e2
martinez married brian hughes, who she met as
martinez married brian hughes, who she met as a fellow undergraduate at mit. they had two sons. while living in takoma park, maryland in 1991, martinez was a member of a task force that created new election districts, leading to changes in the law allowing non-citizens to vote in city elections. martinez and hughes mov...
wikipedia
22215e28bc750c6a5ae6adccfced6b6c1df42e7d
following flooding incidents in 1998 and 2003, martinez
following flooding incidents in 1998 and 2003, martinez turned her focus to urban forestry. she attended the 2003 national urban forest conference, participated in tree inventories and tree plantings, and measured champion trees. in 2009, martinez trained as a texas master naturalist. in san antonio, she worked with or...
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f9d0d0a14a1a4bccb8cf73a727f1fa7c0f7e1c8c
following her work as a federal employee, martinez
following her work as a federal employee, martinez continued on in the same field as a consulting engineer. she was a founding member of the dc chapter of the society of hispanic professional engineers. in 1997, martinez was elected to a five-year term on mit's board of trustees.
wikipedia
567138537f2fd733223cbc0f49640850d359254f
from 1976 to 1994, martinez's work focused on
from 1976 to 1994, martinez's work focused on shipping-related pollution control and maritime health and safety. she started her career as a general engineer at the us maritime administration 's office of ship construction in 1976. martinez was a member of the united states interagency ad hoc work group for the chemica...
wikipedia
8d412a9965635fb270a97dfc40c2ae6e10d0b88d
lissa ann martinez was born in san antonio,
lissa ann martinez was born in san antonio, texas on july 15, 1954. her father, edmundo o. martinez, was a us marine corps staff sergeant. she graduated from jefferson high school and won a scholarship to mit. martinez graduated from mit in 1976 with a bachelor's degree in ocean engineering. she earned her master's deg...
wikipedia
aa95321f9019111f7fc1bf7c129c73967fa6b82e
lissa ann martinez is an american ocean engineer
lissa ann martinez is an american ocean engineer and consultant from san antonio, texas. during her career, she has worked on policy-based solutions for environmental challenges. following her graduation from the massachusetts institute of technology (mit), martinez worked as a federal employee for the us maritime admi...
wikipedia
896dba59eacc0ecbe8dbe92c7c8e0371713cbb6f
his first k-league match was against fc seoul
his first k-league match was against fc seoul in seoul, march 14, 2009. in this game, he won a penalty kick by causing a handball by fc seoul 's defender kevin hatchi. however masahiro Ōhashi missed the resulting penalty kick. in spite of that, gangwon won by 2–1. he scored his first pro goal against jeonbuk on 27 june...
wikipedia
a166660d8fdbf09fa879b1d475d1d86a04be0767
his publications earned him a dsc from the
his publications earned him a dsc from the university of new zealand in 1952, and in 1953 he was awarded the hector memorial medal by the royal society of new zealand. he was appointed an officer of the order of the british empire, for services to ornithology, in the 1982 queen's birthday honours.
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e57bff5d418635973c3b1fb79dd274e5e5b553e1
he was a member of the royal australasian
he was a member of the royal australasian ornithologists union (raou) and contributed numerous papers to its journal, the emu as well as to several other scientific journals. he produced a series of popular booklets about new zealand birds as well as a series of biological monographs to publish the results of his resea...
wikipedia
6ef0aeb89d642d3c4b348c4e2a95aa33719873b2
richdale's main ornithological interest was in seabirds, especially
richdale's main ornithological interest was in seabirds, especially penguins and petrels, and he was engaged in long-term studies of various species for most of his life. he was the driving force to gain protection for the colony of northern royal albatrosses at taiaroa head, otago, after discovering the first successf...
wikipedia
bfb79a37619fb4e04244c1cfdf34d8cba62fb41f
karen m. frank is an american clinical pathologist
karen m. frank is an american clinical pathologist and microbiologist researching the pathogenesis of staphylococcus aureus pneumonia and resistant gram-negative bacteria. she is a senior clinician, principal investigator, and chief of laboratory medicine at the national institutes of health clinical center.
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050b83f1a61eecf4ee1707b1f99144b68a5d1322
to further investigate the mechanisms used by bacteria
to further investigate the mechanisms used by bacteria to spread resistance, frank's research program examined the frequency of horizontal gene transfer among species, using bacterial isolates from two hospitals. most conjugation studies use a lab strain of e. coli, typically under narrow conditions. given that conjuga...
wikipedia
610bb74147559caa65f8d4a7f25b9a3c046f83eb
investigators in the national human genome research institute
investigators in the national human genome research institute and the nih clinical center have used advanced dna sequencing methods to characterize carbapenem-resistant enterobacteriaceae in hospitalized patients. they tracked a cluster of infections in hospitalized patients, then more recently, frank's laboratory cond...
wikipedia
de459025543a39fabc240500b1f619f48e6d61ab
frank's research collaboration with juliane bubeck wardenburg in
frank's research collaboration with juliane bubeck wardenburg in the departments of pediatrics and microbiology at the university of chicago focused on the pathogenesis of staphylococcus aureus pneumonia. using microarray analysis of murine lung rna, we examined the response of the host to a virulent staphylococcal str...
wikipedia
8c67b32aa5e52d80a8f83a5133c2793166e1cab8
frank served as director of the lab service
frank served as director of the lab service center and phlebotomy, and as an associate director of a pathology residency program. she has served as a consultant for medical student education and clinical algorithms for bacterial antibiotic resistance testing in the laboratories of two hospitals in china as part of the ...
wikipedia
a8d739f0cca0a1763881349d6f84fbe02f9cbb0a
frank completed her m.d. and ph.d. in biochemistry
frank completed her m.d. and ph.d. in biochemistry at the university of pennsylvania. she completed a clinical pathology residency at the brigham and women's hospital. during her postdoctoral research fellowship in immunology, she focused on v(d)j recombination in developing lymphocytes in the howard hughes medical ins...
wikipedia
bfb79a37619fb4e04244c1cfdf34d8cba62fb41f
karen m. frank is an american clinical pathologist
karen m. frank is an american clinical pathologist and microbiologist researching the pathogenesis of staphylococcus aureus pneumonia and resistant gram-negative bacteria. she is a senior clinician, principal investigator, and chief of laboratory medicine at the national institutes of health clinical center.
wikipedia
7848acf6215865599d7805db813a4de612c0ae44
newman has a particular interest in the field
newman has a particular interest in the field of infant psychiatry where she specialises in working with parents with babies up to three years of age. these parents often have psychiatric difficulties themselves and the resulting transgenerational issues and impact of trauma on early development is one of her primary r...
wikipedia
1db1d51a7e17527606bcc9613f8728abd9ef6c80
following completion of her training, newman worked as
following completion of her training, newman worked as the clinical director of child psychiatry in south west sydney and until 1997. her focus during this period was largely on child mistreatment. while working in south western sydney in the 1990s, newman was exposed to the plight of asylum seekers and recent immigran...
wikipedia
19ef023cc037d079485d237fb4a94af5474cbd5c
newman completed her secondary education in 1976 in
newman completed her secondary education in 1976 in australia. she then continued to complete a bachelor of honours in psychology in 1980 at the university of sydney. prime minister of australia tony abbott was a student there during this time. based on her interest in abnormal psychology and a desire to carry out clin...
wikipedia
967e70b83227c456aea8abbdb4cb60759064c65a
jerzy ryszard szacki was a polish sociologist and
jerzy ryszard szacki was a polish sociologist and historian of ideas. from 1973 he was a professor at the university of warsaw, and in 1991 became a member of the polish academy of sciences. he is considered one of the most prominent representatives of the warsaw school of the history of ideas.
wikipedia
9c8b806ea37129314d3848b69ce573291bc53efb
in 2004, szacki was honoured as a righteous
in 2004, szacki was honoured as a righteous among the nations. as a teenager during world war ii, szacki had helped his mother barbara szacka (who was also honoured) hide and support a pregnant jewish woman named irena hollender, who had escaped from the warsaw ghetto. in nazi-occupied poland, hiding jews was an offenc...
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88174925e7227351fb637100d46f8901b5033071
szacki also translated several classic works from english
szacki also translated several classic works from english and french into polish: some english-language writings by florian znaniecki, a pioneering polish sociologist, as well as Émile durkheim 's classic work les règles de la méthode sociologique, jean-pierre vernant 's les origines de la pensée grecque and marcel mau...
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f9c5d9cf0919b2babefadb1af08f64e11b610a0a
in 1994, szacki published a book on liberalism
in 1994, szacki published a book on liberalism after communism (original title liberalizm po komunizmie), which was translated into english and other languages and received favourable reviews in the west. in it, szacki addresses the challenges faced by liberal democracy in an environment shaped by decades of communism ...
wikipedia
7ed8779d9f5f8742ab13145b690c708aaf5d4f85
in 1991, szacki co-founded the solidarność pracy (labour
in 1991, szacki co-founded the solidarność pracy (labour solidarity), a short-lived social-democratic party formed by left-wing solidarity members, which merged with the labour union (unia pracy) the following year. in 1998, he prefaced a book about the gdańsk -based milieu of polish liberals edited by the politician d...
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701ee72f0a23744f1287d4d7df940665fc340fa3
in the 1970s, szacki began to maintain contacts
in the 1970s, szacki began to maintain contacts with oppositional circles, although he never became an active figure in politics. in 1978, he participated in the informal discussion group doświadczenie i przyszłość, which brought together pro- and anti-government intellectuals.
wikipedia
0de4aa0d1dbbdc310f6089978f5fb14677f158b6
szacki wrote his monumental historia myśli socjologicznej ("history
szacki wrote his monumental historia myśli socjologicznej ("history of sociological thought") in minneapolis and oxford. it was originally published in english in 1979; while it failed to make a strong impact on international sociology, it became a popular textbook among polish teachers and students of sociology, a tre...
wikipedia
1828823b924b05eea720199d0dcda999b71d5530
from 1972 to 1976, szacki was the president
from 1972 to 1976, szacki was the president of the polish sociological association, and held numerous further administrative positions, including in the polish academy of sciences (pan). from 1974 to 1991, he was editor-in-chief of the polish sociology bulletin.
wikipedia
92c662976da5795e5cb7f7a38994fff7bf25f808
szacki lectured and researched at several universities and
szacki lectured and researched at several universities and institutions worldwide, including the new school for social research, the collège de france, the university of minnesota, the university of oxford (all souls college and the institut für die wissenschaften vom menschen (vienna).
wikipedia
c6f7a0abe67f714c67b4a3d067f3fba41275653a
szacki completed his habilitation at the department of
szacki completed his habilitation at the department of philosophy in 1965. he was appointed "extraordinary professor" in 1973 and "ordinary professor" in 1987, the highest rank in polish academe. in the meantime, szacki held various administrative positions at the university of warsaw, including vice-dean of the depart...
wikipedia
9c3c3db995adc68e912daf1cc7e15bd624bac928
in 1956, when the sociological department in warsaw
in 1956, when the sociological department in warsaw re-opened, szacki returned there to obtain a ph.d. degree. he wrote his thesis at the "institute for the education of research staff" (instytut kształcenia kadr naukowych), which was attached to the central committee of the polish united workers' party and was soon af...
wikipedia
f4f091c0fff1028da054eb5e19a79639c3c571d8
szacki was born in warsaw in 1929. after
szacki was born in warsaw in 1929. after world war ii, he worked for the polish telephone authority, first as a locksmith, then at a desk job. in 1948, he began to study sociology at the university of warsaw. incidentally, his was the last class to graduate before sociology was declared a " bourgeois " discipline and t...
wikipedia
87132ccbf492ab9faadf320d23545865e573a7e9
jerzy ryszard szacki (6 february 1929 – 25
jerzy ryszard szacki (6 february 1929 – 25 october 2016) was a polish sociologist and historian of ideas. from 1973 he was a professor at the university of warsaw, and in 1991 became a member of the polish academy of sciences. he is considered one of the most prominent representatives of the warsaw school of the histor...
wikipedia
ebbe50754ede9d2015a9212960601a564394e540
kyanite is a typically blue aluminosilicate mineral, found
kyanite is a typically blue aluminosilicate mineral, found in aluminium-rich metamorphic pegmatites and sedimentary rock. it is the high pressure polymorph of andalusite and sillimanite, and the presence of kyanite in metamorphic rocks generally indicates metamorphism deep in the earth's crust. kyanite is also known as...
wikipedia
e70013440c6e1b421bf939e53e179946d30eeaa9
kyanite has been used as a semiprecious gemstone,
kyanite has been used as a semiprecious gemstone, which may display cat's eye chatoyancy, though this effect is limited by its anisotropism and perfect cleavage. color varieties include orange kyanite from tanzania. the orange color is due to inclusions of small amounts of manganese (mn) in the structure.
wikipedia
762b019d262f01d53c406fc65c5d5f1b865d271a
bladed crystals of kyanite are very common, but
bladed crystals of kyanite are very common, but individual euhedral crystals are prized by collectors. kyanite occurs in manhattan schist, formed under extreme pressure as a result of a continental collision during the assembly of the supercontinent of pangaea. it is also found in pegmatites of the appalachian mountain...
wikipedia
131591b926bcb1813174345213432f424b55a62a
kyanite is often used as an index mineral
kyanite is often used as an index mineral to define and trace a metamorphic zone that was subject to a particular degree of metamorphism at great depth in the crust. for example, g. m. barrow defined kyanite zones and sillimanite zones in his pioneering work on the mineralogy of metamorphic rocks. barrow was characteri...
wikipedia
ed66150e8733bb258fe15f8a31d892915a5b4622
kyanite is one of the most common minerals,
kyanite is one of the most common minerals, having the composition al sio. minerals with identical compositions but a different, distinct crystal structure are called polymorphs. there are two polymorphs of kyanite: andalusite and sillimanite. kyanite is the most stable at high pressure, andalusite is the most stable a...
wikipedia
f6a6f44b66a4672a7d7794b90f11fa0a1cecddb0
kyanite occurs in biotite gneiss, mica schist, and
kyanite occurs in biotite gneiss, mica schist, and hornfels, which are metamorphic rocks formed at high pressure during regional metamorphism of a protolith which is rich in aluminium (a pelitic protolith). kyanite is also occasionally found in granite and pegmatites and associated quartz veins, and is infrequently fou...
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78e2d5c395b2d01b357921e98a8c99f56827ed6b
the kyanite structure can be visualized as a
the kyanite structure can be visualized as a distorted face centered cubic lattice of oxygen ions, with aluminium ions occupying 40% of the octahedral sites and silicon occupying 10% of the tetrahedral sites. the aluminium octahedra form chains along the length of the crystal, half of which are straight and half of whi...
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77a9ad78607ab2edfefec0b57b9782cfb874d581
kyanite's elongated, columnar crystals are usually a good
kyanite's elongated, columnar crystals are usually a good first indication of the mineral, as well as its color (when the specimen is blue). associated minerals are useful as well, especially the presence of the polymorphs of staurolite, which occurs frequently with kyanite. however, the most useful characteristic in i...
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3ef0cab661e3f2b8dc5f2fd1dc74aa86249b0022
kyanite is an aluminum silicate mineral, with the
kyanite is an aluminum silicate mineral, with the chemical formula al sio. it is typically patchy blue in color, though it can range from pale to deep blue and can also be gray or white or, infrequently, light green. it typically forms sprays of bladed crystals, but is less commonly found as distinct euhedral (well-sha...
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kyanite is strongly anisotropic, in that its hardness
kyanite is strongly anisotropic, in that its hardness varies depending on its crystallographic direction. in kyanite, this anisotropism can be considered an identifying characteristic, along with its characteristic blue color. its name comes from the same origin as that of the color cyan, being derived from the ancient...
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4a6a0aa6d41ad1b2f725202ad777267163994565
kyanite is a typically blue aluminosilicate mineral, found
kyanite is a typically blue aluminosilicate mineral, found in aluminium -rich metamorphic pegmatites and sedimentary rock. it is the high pressure polymorph of andalusite and sillimanite, and the presence of kyanite in metamorphic rocks generally indicates metamorphism deep in the earth's crust. kyanite is also known a...
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leif bruno axmyr was a swedish convicted criminal.
leif bruno axmyr was a swedish convicted criminal. at the time of his release in 2016, he had been imprisoned longer than any other swedish inmate who had served a life sentence. in may 1982, axmyr was on leave from prison when he killed his ex-girlfriend and her male friend. he was sentenced to life imprisonment for t...
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on 10 june 2013, Örebro district court again
on 10 june 2013, Örebro district court again decided that axmyr's sentence would be commuted. he was released in june 2016 after serving 34 years in prison. while the court considered that there was a danger that he would reoffend and that his personality disorder and psychopathy were problematic, they decided that axm...
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on 7 may 2010, Örebro district court announced
on 7 may 2010, Örebro district court announced that axmyr's application to have his sentence commuted to a time-limited sentence would be approved and that he would be released in 2013. a time limit of 46 years and six months was set. the göta court of appeal later overturned the district court ruling. axmyr then appea...
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in november 2006, axmyr applied to have his
in november 2006, axmyr applied to have his life term commuted to a time-limited sentence. he application was denied in november 2007. he was again denied on 23 may 2008 and axmyr appealed to the göta court of appeal, which also denied the application on 28 november 2008. in november 2009, he again applied to have his ...
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axmyr was about to be released in 1982,
axmyr was about to be released in 1982, after serving the initial 1958 sentence for robbery plus additional time for violent offences within prison, when he was allowed leave. on 29 may 1982, during his leave, axmyr beat his ex-girlfriend ulla-britt jakobsson and her male friend hans larsson to death at jakobsson's apa...
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he started committing violent offences at an early
he started committing violent offences at an early age; at seventeen he beat up his stepfather and said that he enjoyed it and would have beaten him to death if his friends had not stepped in. axmyr was first sentenced to prison for robbery in 1958 and spent, with short interruptions, almost fifty years in swedish pris...
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in a radio documentary in 2008, axmyr said
in a radio documentary in 2008, axmyr said that he was an illegitimate child and spent his first seven years in a child care home. first he lived at a child care home called kustens, then ekedalen, and, later, vidkärr. axmyr stated that conditions were rough in the child care homes—abuse, such as beatings, occurred reg...
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leif bruno axmyr (11 june 1938 – 11
leif bruno axmyr (11 june 1938 – 11 october 2018) was a swedish convicted criminal. at the time of his release in 2016, he had been imprisoned longer than any other swedish inmate who had served a life sentence. in may 1982, axmyr was on leave from prison when he killed his ex-girlfriend and her male friend. he was sen...
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leonard warren cook cbe crsnz is a professional
leonard warren cook cbe crsnz is a professional statistician who was government statistician of new zealand from 1992 to 2000, and national statistician and director of the united kingdom office for national statistics, and registrar general for england and wales from 2000 to 2005. he served as families commissioner in...
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he led the creation and publication of the
he led the creation and publication of the national statistics code of practice. probably his most publicised act in his time in the united kingdom came in february 2005, when as registrar general he had to rule on the legality of the wedding of charles, prince of wales and camilla parker bowles.
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cook took up the post of national statistician
cook took up the post of national statistician and director of the office for national statistics at the end of may 2000. he was the second head of the ons but the first to have the title of national statistician. he returned to new zealand and was succeeded by karen dunnell in september 2005.
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after joining the department of statistics, new zealand,
after joining the department of statistics, new zealand, (now statistics new zealand) in 1971, he was appointed as assistant government statistician in 1982, deputy government statistician in 1986 and government statistician in 1992. he was a member of the secretariat of the prime minister's task force on tax reform in...
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cook had a particular interest in social policy,
cook had a particular interest in social policy, demography, statistical methodology and the application of information technology in statistical systems. he was interested in the promotion of research methodology in public policy analysis and decision-making with past interests particularly in retirement provision and...
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cook was elected a chartered statistician of the
cook was elected a chartered statistician of the royal statistical society in 1973 and a companion of the royal society of new zealand in 2005. he served as one of three vice-presidents of the international statistical institute from 2005 to 2007 and is a visiting fellow of nuffield college, oxford. he was made a cbe i...
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cook was born in dunedin, new zealand, in
cook was born in dunedin, new zealand, in 1949 and was educated at bayfield high school, dunedin and the university of otago where he did a ba (hons) in maths and stats. he attended henley management centre in 1989 and insead in 1998.
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leonard warren cook cbe crsnz (born 13 april
leonard warren cook cbe crsnz (born 13 april 1949) is a professional statistician who was government statistician of new zealand from 1992 to 2000, and national statistician and director of the united kingdom office for national statistics, and registrar general for england and wales from 2000 to 2005. he served as fam...
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in geometry and crystallography, the laves graph is
in geometry and crystallography, the laves graph is an infinite and highly symmetric system of points and line segments in three-dimensional euclidean space, forming a periodic graph. three equal-length segments meet at 120° angles at each point, and all cycles use ten or more segments. it is the shortest possible trip...
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the laves graph may also give a crystal
the laves graph may also give a crystal structure for boron, one which computations predict should be stable. other chemicals that may form this structure include srsi (from which the "srs net" name derives) and elemental nitrogen, as well as certain metal–organic frameworks and cyclic hydrocarbons.
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the laves graph has been suggested as an
the laves graph has been suggested as an allotrope of carbon, analogous to the more common graphene and graphite carbon structure which also have three bonds per atom at 120° angles. in graphene, adjacent atoms have the same bonding planes as each other, whereas in the laves graph structure the bonding planes of adjace...
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6df95c3fbae7368ed62b1685dd7398adc16b676a
a sculpture titled bamboozle, by jacobus verhoeff and
a sculpture titled bamboozle, by jacobus verhoeff and his son tom verhoeff, is in the form of a fragment of the laves graph, with its vertices represented by multicolored interlocking acrylic triangles. it was installed in 2013 at the eindhoven university of technology.
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the laves graph is the unique shortest triply-periodic
the laves graph is the unique shortest triply-periodic network, in the following sense. triply-periodic means repeating infinitely in all three dimensions of space, so a triply-periodic network is a connected geometric graph with a three-dimensional lattice of translational symmetries. a fundamental domain is any shape...
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if the surrounding space is partitioned into the
if the surrounding space is partitioned into the regions nearest each vertex—the cells of the voronoi diagram of this structure—these form heptadecahedra with 17 faces each. they are plesiohedra, polyhedra that tile space isohedrally. experimenting with the structures formed by these polyhedra led physicist alan schoen...
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the girth of this structure is 10—the shortest
the girth of this structure is 10—the shortest cycles in the graph have 10 vertices—and 15 of these cycles pass through each vertex. the numbers of vertices at distance 0, 1, 2,... from any vertex (forming the coordination sequence of the laves graph) are:
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the laves graph is a cubic graph, meaning
the laves graph is a cubic graph, meaning that there are exactly three edges at each vertex. every pair of a vertex and adjacent edge can be transformed into every other such pair by a symmetry of the graph, so it is a symmetric graph. more strongly, for every two vertices u {\displaystyle u} and v {\displaystyle v}, e...
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