id
stringlengths
40
40
title
stringlengths
15
120
text
stringlengths
41
3.14k
source
stringclasses
2 values
f7a95572e0ed0ff142b36c9e4e896f7fa89f3d89
the attached weights to the percolation paths depend
the attached weights to the percolation paths depend on the percolation levels assigned to the source nodes, based on the premise that the higher the percolation level of a source node is, the more important are the paths that originate from that node. nodes which lie on shortest paths originating from highly percolate...
wikipedia
c483a8f7c471b4ff990c7d86154fb6de56049a3c
where σ s r {\displaystyle \sigma _{sr}} is
where σ s r {\displaystyle \sigma _{sr}} is total number of shortest paths from node s {\displaystyle s} to node r {\displaystyle r} and σ s r (v) {\displaystyle \sigma _{sr}(v)} is the number of those paths that pass through v {\displaystyle v}. the percolation state of the node i {\displaystyle i} at time t {\display...
wikipedia
4a5df79538550c1d0eea88edbacaf25b961a74fb
percolation centrality is defined for a given node,
percolation centrality is defined for a given node, at a given time, as the proportion of ‘percolated paths’ that go through that node. a ‘percolated path’ is a shortest path between a pair of nodes, where the source node is percolated (e.g., infected). the target node can be percolated or non-percolated, or in a parti...
wikipedia
1e4fb78e9b53ac6b44d8ac407dbac0d27bfda208
percolation centrality is a version of weighted betweenness
percolation centrality is a version of weighted betweenness centrality, but it considers the 'state' of the source and target nodes of each shortest path in calculating this weight. percolation of a ‘contagion’ occurs in complex networks in a number of scenarios. for example, viral or bacterial infection can spread ove...
wikipedia
4f8b191d0c84f5ddeae85ca1c18e720a787a2b9b
with a i j {\displaystyle a_{ij}} and w
with a i j {\displaystyle a_{ij}} and w i j {\displaystyle w_{ij}} being adjacency and weight matrices between nodes i {\displaystyle i} and j {\displaystyle j}, respectively.analogous to the power law distribution of degree found in scale free networks, the strength of a given node follows a power law distribution as ...
wikipedia
1c32822a6bf1c142af6048b164b4d43c69244094
in a weighted network the links connecting the
in a weighted network the links connecting the nodes are no longer treated as binary interactions, but are weighted in proportion to their capacity, influence, frequency, etc., which adds another dimension of heterogeneity within the network beyond the topological effects. a node's strength in a weighted network is giv...
wikipedia
0aa705db8024180f90bb201685e8aa7a6b735b5a
note that the betweenness centrality of a node
note that the betweenness centrality of a node scales with the number of pairs of nodes as suggested by the summation indices. therefore, the calculation may be rescaled by dividing through by the number of pairs of nodes not including v {\displaystyle v}, so that g ∈ {\displaystyle g\in }. the division is done by (n −...
wikipedia
4000dfef657318c7cea36b1c67ed5c93ed705d0a
where σ s t {\displaystyle \sigma _{st}} is
where σ s t {\displaystyle \sigma _{st}} is the total number of shortest paths from node s {\displaystyle s} to node t {\displaystyle t} and σ s t (v) {\displaystyle \sigma _{st}(v)} is the number of those paths that pass through v {\displaystyle v} (not where v {\displaystyle v} is an end point).
wikipedia
16d318f00e94c9fcf06940f36de98440b018934c
betweenness centrality finds wide application in network theory;
betweenness centrality finds wide application in network theory; it represents the degree to which nodes stand between each other. for example, in a telecommunications network, a node with higher betweenness centrality would have more control over the network, because more information will pass through that node.
wikipedia
3462176fc0094f8d8a03bb8d760efd6f1a9eb790
betweenness centrality was devised as a general measure
betweenness centrality was devised as a general measure of centrality: it applies to a wide range of problems in network theory, including problems related to social networks, biology, transport and scientific cooperation. although earlier authors have intuitively described centrality as based on betweenness, freeman (...
wikipedia
7f007d17a35818fbcebd679cd70ef8b39f078fb8
in graph theory, betweenness centrality is a measure
in graph theory, betweenness centrality is a measure of centrality in a graph based on shortest paths. for every pair of vertices in a connected graph, there exists at least one shortest path between the vertices such that either the number of edges that the path passes through (for unweighted graphs) or the sum of the...
wikipedia
ad11220b42005c1e63d73912e27d8be9277d7120
jérémy roy is a canadian professional ice hockey
jérémy roy is a canadian professional ice hockey defenceman. he is currently playing with hc vityaz in the kontinental hockey league (khl). roy was drafted with the 31st overall pick by the sharks in the second round of the 2015 nhl entry draft.
wikipedia
26a7e24b1ccb620c48d4a55f2cbcad8adb065d37
roy won a gold medal as a member
roy won a gold medal as a member of team canada at the 2014 ivan hlinka memorial tournament, and also competed at the 2015 iihf world u18 championships where he led team canada to a bronze medal and was selected as one of canada's top 3 players.
wikipedia
d386f45a5958c2f3241c18a39175072dce88012a
in the following 2021–22 season, roy embarked on
in the following 2021–22 season, roy embarked on a european career in joining slovakian club, hkm zvolen of the slovak extraliga. roy enjoyed a productive first season abroad, registering 8 goals and 33 points through 48 regular season games.
wikipedia
e9df4eb4e5993043288e93713184aa0a893f5fc7
un-signed leading into the pandemic delayed 2020–21 season,
un-signed leading into the pandemic delayed 2020–21 season, roy was signed to a professional try-out contract with the san diego gulls of the ahl, the primary affiliate to the anaheim ducks, on january 13, 2021.
wikipedia
63870e6118c3ce6b99fd378ad0fba7615f2c5b33
at the conclusion of his entry-level contract, with
at the conclusion of his entry-level contract, with his tenure within the sharks largely affected through injury, roy as an impending restricted free agent was not tendered a qualifying offer by san jose and was released to free agency on october 9, 2020.
wikipedia
0bc02de2ca4ff37c19616acb70702af774641c84
roy was drafted by the sherbrooke phoenix 4th
roy was drafted by the sherbrooke phoenix 4th overall in the 2013 qmjhl entry draft. in his first season with sherbrooke he was named to the 2013–14 qmjhl all-rookie team and awarded the raymond lagacé trophy as the league's defensive rookie of the year. the following season his outstanding play was rewarded when he wa...
wikipedia
b1c556acf14cfae6dad310d435cba0c7925d4ce4
jérémy roy (born may 14, 1997) is a
jérémy roy (born may 14, 1997) is a canadian professional ice hockey defenceman. he is currently playing with hc vityaz in the kontinental hockey league (khl). roy was drafted with the 31st overall pick by the sharks in the second round of the 2015 nhl entry draft.
wikipedia
14f42b997b62c3e46a7a2f06a6fb1c13c7467fab
alina anca von davier is a psychometrician and
alina anca von davier is a psychometrician and researcher in computational psychometrics, machine learning, and education. von davier is a researcher, innovator, and an executive leader with over 20 years of experience in edtech and in the assessment industry. she is the chief of assessment at duolingo, where she leads...
wikipedia
5b24210b897506289f4ad9ad509876d46ed7ffc8
von davier’s work has been widely recognized in
von davier’s work has been widely recognized in the academic community. in 2019, she was a finalist for the innovator award from the edtech digest. in 2020, she received atp’s career award for her contributions to assessment. the american educational research association awarded her the division d signification contrib...
wikipedia
b0ffe73acb3cff587dbd4e4f95675ac412e8fdd4
von davier was a member of the board
von davier was a member of the board of directors for smart sparrow, an adaptive learning company from 2018 to 2020. she currently serves as a director on the board for macat, an education company focused on critical and creative thinking, learning and assessment.
wikipedia
1d825fe0bab2ddb1ed9a7e8ca07c3fe8e04c8da9
von davier has made significant contributions to the
von davier has made significant contributions to the field of psychometrics through her work in academic settings. she was the chair of the editorial council of the psychometric society, and an associate editor of psychometrika. she also served as guest editor for both applied psychological measurement and the journal ...
wikipedia
87ae1dd5ac9612cbfb52ce8920c76512eeb47ff0
as one of the pioneers of the field
as one of the pioneers of the field of computational psychometrics, von davier has dedicated her career to advancing the field through her work in both academia and industry. she served as chief officer at act (test) leading actnext, an r&d-based innovation division. prior to this, she worked for 15 years at educationa...
wikipedia
5f6b7b9f9c853ce1aa62c72f3adaaef07cec6235
von davier completed a m.s. in mathematics from
von davier completed a m.s. in mathematics from the university of bucharest in 1990. in 2000, she earned a doctorate in mathematics from otto von guericke university magdeburg. in 2019 she completed classes in an executive mba program at harvard business school.
wikipedia
f8f22f91847040e19ba257f1aa93041f0514f026
alina anca von davier (born september 11, 1967)
alina anca von davier (born september 11, 1967) is a psychometrician and researcher in computational psychometrics, machine learning, and education. von davier is a researcher, innovator, and an executive leader with over 20 years of experience in edtech and in the assessment industry. she is the chief of assessment at...
wikipedia
cc826506d0afe26449ce3e2dfe7b44584dbc6ec4
mark tomforde is an american mathematician and professor
mark tomforde is an american mathematician and professor of mathematics at university of colorado colorado springs after leaving the university of houston in 2020. he works in the areas of functional analysis and algebra, and he earned his ph.d. in mathematics at dartmouth college in 2002. tomforde's research interests...
wikipedia
c2fdc737efc416d83772cd71a9eeb4d5e705c1fe
tomforde created and directed the cougars and houston
tomforde created and directed the cougars and houston area mathematics program (champ), which was last active in spring 2019. champ had previously received an award from phi beta kappa and the award for mathematics programs that make a difference from the american mathematical society. in 2019 tomforde was recognized w...
wikipedia
64d5468b8e7366697ee3532deb648a6baa322c26
he was an invited speaker at the 2015
he was an invited speaker at the 2015 abel symposium, and he is a founding member of the algebras and rings in colorado springs (arcs) center. tomforde has researched the related areas of graph c*-algebras and leavitt path algebras. with doug drinen, he is co-creator of the drinen-tomforde desingularization, often simp...
wikipedia
61e8579ae9158cf14e067e0dd7c0d0ad3f6065a1
mark tomforde is an american mathematician and professor
mark tomforde is an american mathematician and professor of mathematics at university of colorado colorado springs after leaving the university of houston in 2020. he works in the areas of functional analysis and algebra, and he earned his ph.d. in mathematics at dartmouth college in 2002. tomforde's research interests...
wikipedia
20f04f806b8efb7adfeee06fc8bf7dafeed65706
the 2010 united states census found 738 people
the 2010 united states census found 738 people with the surname bok, making it the 31,383rd-most-common name in the country. this represented an increase from 599 (35,522nd-most-common) in the 2000 census. in the 2010 census, 73.71% of the bearers of the surname identified as white, and 21.41% as asian.
wikipedia
a7e1191b1b9f69a3b71b7c377f0256cd659021d6
bok is the spelling in revised romanization of
bok is the spelling in revised romanization of one korean surname meaning 'divination' (hanja: 卜; referred to in korean as 점 복; jeom bok or 무 복; mu bok). the character used to write this surname, radical 25, is also used for the chinese surname now pronounced bǔ in standard mandarin. the largest korean clan bearing thi...
wikipedia
d4bd3b82dec7c79149f57536b5b2d64d3ad4d48d
as a chinese surname, bok transcribes the hokkien
as a chinese surname, bok transcribes the hokkien pronunciations of various surnames spelled in mandarin pinyin as mu (e.g. 牧 'herder'; 穆 'elegant') or mo (莫). hokkien spellings of chinese surnames are often found in malaysia and singapore, where many descendants of chinese migrants can trace their roots to the fujian ...
wikipedia
5bac22fe027130f1503accafac75f9421a3678ac
5-hydroxytryptamine receptor 2b (5-ht2b) also known as serotonin
5-hydroxytryptamine receptor 2b (5-ht2b) also known as serotonin receptor 2b is a protein that in humans is encoded by the htr2b gene. 5-ht2b is a member of the 5-ht2 receptor family that binds the neurotransmitter serotonin (5-hydroxytryptamine, 5-ht). like all 5-ht2 receptors, the 5-ht2b receptor is gq/g11-protein co...
wikipedia
b67782d95e987eb2f917af288626f48de7bf616b
5-ht antagonists have previously been proposed as treatment
5-ht antagonists have previously been proposed as treatment for migraine headaches, and rs-127,445 was trialled in humans up to phase i for this indication, but development was not continued. more recent research has focused on possible application of 5-ht antagonists as treatments for chronic heart disease. research c...
wikipedia
22c8b54188f21d11c5e7a31dd07e582038deaef2
the structure of the 5-ht receptor was resolved
the structure of the 5-ht receptor was resolved in a complex with the valvulopathogenic drug ergotamine. as of 2009, few highly selective 5-ht receptor ligands have been discovered, although numerous potent non-selective compounds are known, particularly agents with concomitant 5-ht binding. research in this area has b...
wikipedia
614dde916b933316a70a7468c27048e668a6fd6f
5-ht receptors have been strongly implicated in causing
5-ht receptors have been strongly implicated in causing drug-induced valvular heart disease. the fen-phen scandal in the 80s and 90s revealed the cardiotoxic effects of 5-ht stimulation. today, 5-ht agonism is considered a toxicity signal precluding further clinical development of a compound.
wikipedia
8e864f1b699cb5105dd7a4aa848bb5e434baecd8
first discovered in the stomach of rats, 5-ht
first discovered in the stomach of rats, 5-ht was challenging to characterize initially because of its structural similarity to the other 5-ht receptors, particularly 5-ht. the 5-ht receptors (of which the 5-ht receptor is a subtype) mediate many of the central and peripheral physiologic functions of serotonin. cardiov...
wikipedia
3867135d94e8877391c16c6db46e8ee6846d6d73
5-hydroxytryptamine receptor 2b (5-ht) also known as serotonin
5-hydroxytryptamine receptor 2b (5-ht) also known as serotonin receptor 2b is a protein that in humans is encoded by the htr2b gene. 5-ht is a member of the 5-ht receptor family that binds the neurotransmitter serotonin (5-hydroxytryptamine, 5-ht). like all 5-ht receptors, the 5-ht receptor is g /g -protein coupled, le...
wikipedia
035d896ddab7bc9f64d85e7d8a8c87b75ff78865
bar-hillel's daughter maya bar-hillel is a cognitive psychologist
bar-hillel's daughter maya bar-hillel is a cognitive psychologist at the hebrew university, known for her collaborations with amos tversky and for her role in critiquing bible code study. his other daughter, mira bar-hillel, is a freelance journalist who has worked for the london evening standard. his granddaughter, gi...
wikipedia
438fc8a3a10d7950dfd99617c82bcbacb2e59e9d
in 1953, bar-hillel joined the philosophy department at
in 1953, bar-hillel joined the philosophy department at the hebrew university, where he taught until his death at age 60. his teachings and writings strongly influenced an entire generation of israeli philosophers and linguists, including asa kasher and avishai margalit. in 1953, he founded a pioneering algebraic-compu...
wikipedia
137faffcc6aca5a4586f1f029fe7deb6ef34d00c
bar-hillel then took up a position at mit,
bar-hillel then took up a position at mit, where he was the first academic to work full-time in the field of machine translation. bar-hillel organised the first international conference on machine translation in 1952. later he expressed doubts that general-purpose fully automatic high-quality machine translation would ...
wikipedia
86620fb425b5d4f1e21f0334a9e3cb9be6843e60
bar-hillel was a major disciple of rudolf carnap,
bar-hillel was a major disciple of rudolf carnap, whose logical syntax of language much influenced him. he began a correspondence with carnap in the 1940s, which led to a 1950 post-doctorate under carnap at the university of chicago, and to his collaborating on carnap's 1952 an outline of the theory of semantic informa...
wikipedia
25dd0aaf470808e4d802d3f221e9f2ef0ec5100d
born oscar westreich in vienna, austria-hungary, he was
born oscar westreich in vienna, austria-hungary, he was raised in berlin. in 1933 he emigrated to palestine with the bnei akiva youth movement, and briefly joined the kibbutz tirat zvi before settling in jerusalem and marrying shulamith.
wikipedia
bd28df485403c347dfc93da081c22cf927485bd7
yehoshua bar-hillel (hebrew: יהושע בר-הלל; 8 september 1915
yehoshua bar-hillel (hebrew: יהושע בר-הלל; 8 september 1915 – 25 september 1975) was an israeli philosopher, mathematician, and linguist. he was a pioneer in the fields of machine translation and formal linguistics.
wikipedia
de6142a7d4c47d362bcec7eb89a365516546b2c6
curtis valk is a canadian-kazakhstani professional ice hockey
curtis valk is a canadian-kazakhstani professional ice hockey centre. he is currently playing with avtomobilist yekaterinburg in the kontinental hockey league (khl). he has formerly played in the national hockey league (nhl) with the florida panthers.
wikipedia
e6e1ecfacc4369fad7ad185d17df96dcd2b9a8b7
following four seasons with barys, valk as a
following four seasons with barys, valk as a dual kazakhstani citizen left to sign a two-year contract to continue in the khl with avtomobilist yekaterinburg on may 1, 2022.
wikipedia
18a8e39738ab7177dd5407f73b0ba88e211bdcea
as a restricted free agent with the panthers,
as a restricted free agent with the panthers, valk opted to pause his north american career in signing a one-year contract with kazahkstani club, barys astana of the khl on july 3, 2018.
wikipedia
bd7f3a2416c60b949c66d4b5c3afa59eb86e974e
on july 1, 2017, valk signed as a
on july 1, 2017, valk signed as a free agent to a one-year, entry-level contract with the florida panthers. during training camp, valk was re-assigned by the panthers to begin the 2017–18 season with ahl affiliate, the springfield thunderbirds. through the first 16 games of the season, valk impressed to lead the team i...
wikipedia
16409b2edfa0007e1bac66b4b9fc6e25d88548b1
as an undrafted free agent embarking on his
as an undrafted free agent embarking on his first professional season, valk was invited to participate in the vancouver canucks 2014 training camp on september 21, 2014. he was later demoted to ahl affiliate, the utica comets, where he signed a one-year contract on october 10, 2014. he was immediately re-assigned to ec...
wikipedia
437ffbec2fae49a0666bf440623352f5ac7dc609
valk played major junior hockey for his hometown
valk played major junior hockey for his hometown team, the medicine hat tigers in the western hockey league (whl). valk, who played in the whl from the 2010–11 season, was rewarded for his outstanding performance during the 2012–13 whl season by being named to the 2013 whl east first all-star team.
wikipedia
dd3327a5877b3a06483538e4b85db6e7230ffa32
curtis valk (kazakh: Кертис Вэлк; born february 8,
curtis valk (kazakh: Кертис Вэлк; born february 8, 1993) is a canadian - kazakhstani professional ice hockey centre. he is currently playing with avtomobilist yekaterinburg in the kontinental hockey league (khl). he has formerly played in the national hockey league (nhl) with the florida panthers.
wikipedia
e937af7c66216f3ac0eab09262d4e7e3dc3f8795
the west seattle bridge, officially the jeanette williams
the west seattle bridge, officially the jeanette williams memorial bridge, is a cantilevered segmental bridge that serves as the primary connection between west seattle and important highways such as state route 99, the spokane street viaduct, and interstate 5. it was built between 1981 and 1984 after the previous basc...
wikipedia
109c9b90787634d5c89dcc711cc934a569034f56
from 2008 to 2013, the spokane street viaduct
from 2008 to 2013, the spokane street viaduct section between interstate 5 and state route 99 was rebuilt and widened. the widened roadway has three lanes in each direction and shoulders. a new westbound on and off ramp was built at 1st avenue south and replaced the dangerous 4th avenue south off-ramp. a new eastbound ...
wikipedia
7c9bc70bcb4fa29c7db841ef0604680ba36c8dcb
the spokane street viaduct section was one of
the spokane street viaduct section was one of seattle's first freeways, built in 1945. upon completion of the west seattle bridge in 1984, the road comprising the spokane street viaduct and the west seattle bridge was referred to as the "west seattle freeway". however, a series of fatalities led to recognition that the...
wikipedia
523671924db57cb5d17728c0a76c40b75adf2c8d
in november 2020, mayor jenny durkan announced that
in november 2020, mayor jenny durkan announced that the city would focus on repairing the bridge for $47 million with a projected opening of 2022. an option to replace the damaged section with a new steel span would have been completed in 2025 or 2026 and cost $390 million to $522 million. kraemer north america was sel...
wikipedia
b1db1cb636a206325d48d1722d7d0250ae15742b
on march 23, 2020, sdot began a long-term
on march 23, 2020, sdot began a long-term closure of the bridge for emergency repairs after cracks in the deck were discovered during a routine inspection. the girder wall cracks had grown to 2 ft (0.61 m) within a month, while the hollow girder cracks had been noticed during inspections. an earlier report from 2014 sp...
wikipedia
1ade3e3cf435919e0f2b71192517c52bc373a5bc
each 7,500-short-ton (6,800 t) leaf of the bridge
each 7,500-short-ton (6,800 t) leaf of the bridge floats on a 100-inch (2.5 m) steel barrel in hydraulic oil, situated in center piers at each side of the river. as the bridge intersects the river at an oblique angle, both leaves rotate only 45 degrees (one-eighth turn) to clear the shipping channel instead of the 90-d...
wikipedia
b241b31635cf96e20bfc481d32669a68a95daf15
after completion of the high-level bridge, a lower
after completion of the high-level bridge, a lower bridge was needed to carry traffic between harbor island and west seattle. the " spokane street bridge " (or the " west seattle low-level bridge ") is a concrete double-leaf swing bridge that was constructed traffic formerly carried by the west spokane street bridge. i...
wikipedia
4b9de8987c35877019f6c422457ae9d58ee6c92d
a monorail extension to west seattle in the
a monorail extension to west seattle in the early 2000s was planned to use the west seattle bridge, with elevated columns over the center barrier. the plan was later scaled down to a single-track guideway over the bridge and abandoned entirely in 2005 over cost concerns.
wikipedia
bd7148071d8c9e50962ce8d736b12afcc0407388
the replacement bridge was opened in 1984. the
the replacement bridge was opened in 1984. the west seattle bridge was renamed as the jeanette williams memorial bridge on july 6, 2009, in honor of councilmember williams, who had been instrumental in securing political support for the construction of the bridge. all directional signs still carry the name "west seattl...
wikipedia
f6e21d4f56ea368fd3d5237faae7bcc14a68ac81
on june 11, 1978, a ship struck the
on june 11, 1978, a ship struck the old bridge, which left it open and unrepairable. because of this, the project qualified for funds from the federal office of special bridge replacement. however, with many other damaged bridges to replace, this program alone did not have sufficient funding. while federal lawmakers we...
wikipedia
14b1464fb4d0c256b9a6892f741a4ab58909ad0e
after the scandal, the project was considered dead.
after the scandal, the project was considered dead. norbert tiemann, a federal highway regulator, stated that there would essentially be no chance of the project receiving federal funds for completion. tiemann also quipped, "short of a tug knocking it down (which could trigger federal special bridge replacement funds),...
wikipedia
97d57b32bfd9cc9bfc83dc1eb532b1f1e82f100b
after a long drawn-out process, three companies eventually
after a long drawn-out process, three companies eventually bid to design the bridge for $1.5 million. however, the city engineer chose a fourth company that was financially connected to the speaker of the state house. the price from this fourth company was triple the cost of the other three. this was a result of a seri...
wikipedia
1f5b27ff72a5d4098c281391f3248d54f887ede6
planning for the bridge was hampered by difficulties
planning for the bridge was hampered by difficulties in receiving funding. in large part, this is because the bridge was not a designated highway. a 1968 forward thrust ballot measure included $16.7 million in funding for the bridge, largely to receive votes from west seattle residents. other funding sources included a...
wikipedia
2d71fb1c0703b828f27fbaeff9b0dd8e0754cd28
by the 1970s, the west spokane street bridge
by the 1970s, the west spokane street bridge was one of seattle's worst bottlenecks, due to the large number of ships in duwamish waterway and the frequent bridge openings. city leaders began planning a higher bridge, without a drawbridge, in the 1960s.
wikipedia
308e27f6f284322f605213c2572992839b8452f2
a more permanent bascule bridge was constructed in
a more permanent bascule bridge was constructed in 1924, which lasted for several decades. in 1945, one of seattle's oldest freeways (the "spokane street viaduct") connected the bridge to beacon hill. prior to the construction of interstate 5 in washington, the viaduct was separated from the bridge by the main north–so...
wikipedia
04b06161be3ff09af43e8770f9ad6df78c94727c
the bridge that preceded the "west seattle bridge"
the bridge that preceded the "west seattle bridge" as we know it today was called the "west spokane street bridge". before any permanent bridge was built along the line of spokane street, there had been three temporary bridges, built c. 1900, c. 1910, and c. 1918. the first one was basically a swinging gate in what had...
wikipedia
20860ff0752b30ba1f82afaed986c16a1aa44250
spokane street has long been used as designation
spokane street has long been used as designation for the streets running along the latitude of the current west seattle bridge. construction on the " west spokane street bridge " (a bascule drawbridge) was completed in 1924, and the bridge lasted over fifty years. then (in 1978) the portion of the bridge carrying the w...
wikipedia
5640cfd007b26e5e0768ed1eb098b51f554c0f18
the low-level spokane street bridge of swing-span design
the low-level spokane street bridge of swing-span design spans the west channel of the duwamish river immediately north of the high-level bridge. the low-level bridge carries the surface-level spokane street and has a navigational clearance of 45 feet (14 meters).
wikipedia
794929ef5557a277282e34dcaa633d5084930933
the bridge spans the east and west channels
the bridge spans the east and west channels that form the mouth of the duwamish river at elliott bay, crossing over harbor island. its main approaches are fauntleroy way s.w. from the west and the spokane street viaduct from the east. drivers heading east over the west seattle bridge can continue (via the spokane stree...
wikipedia
059634ef24ed702bd954a8036bd28abd30ef156c
the high-level bridge was closed in march 2020
the high-level bridge was closed in march 2020 after cracks in the underside were found to be growing rapidly, necessitating a major repair amid the covid-19 pandemic. the seattle department of transportation conducted repairs over a two-and-a-half-year period and reopened the bridge on september 17, 2022.
wikipedia
0548335167d1db3d10fa7f206395de4a2a0a87ed
the west seattle bridge, officially the jeanette williams
the west seattle bridge, officially the jeanette williams memorial bridge, is a cantilevered segmental bridge that serves as the primary connection between west seattle and important highways such as state route 99 (and the tunnel through downtown), the spokane street viaduct, and interstate 5. it was built between 198...
wikipedia
6383e35575fb31a19b9f3efce4fdf593b91dba0b
nobushige kurokawa is a japanese mathematician working in
nobushige kurokawa is a japanese mathematician working in number theory, especially analytic number theory, multiple trigonometric function theory, zeta functions and automorphic forms. he is currently a professor emeritus at tokyo institute of technology.
wikipedia
67a17c2c07b13fe279ba38c079d13b5a8fafaa0d
nobushige kurokawa (黒川 信重, kurokawa nobushige, born 1952)
nobushige kurokawa (黒川 信重, kurokawa nobushige, born 1952) is a japanese mathematician working in number theory, especially analytic number theory, multiple trigonometric function theory, zeta functions and automorphic forms. he is currently a professor emeritus at tokyo institute of technology.
wikipedia
e59b0f3b2784bd37d96e5a09086afee8de55470d
liang junwu was a chinese scientist in the
liang junwu was a chinese scientist in the field of semiconductor materials, and an academician of the chinese academy of sciences. he is known as the founder of early semiconductor silicon materials in china. he was a member of the chinese communist party (ccp).
wikipedia
ede3a95d07a7155a9721cb6811ea9694a7da0697
in the 1960s, liang solved the key technology
in the 1960s, liang solved the key technology of high-purity zone melting silicon; in 1964, he prepared gaas liquid phase epitaxial materials for room temperature lasers; in 1979, he successfully developed high-quality silicon zone melting single crystal without dislocation, vortex, low micro defect, low carbon and con...
wikipedia
89983a30876a89f2b8bdaf1cd58625e81fffa2bb
liang returned to china in 1960 and that
liang returned to china in 1960 and that same year became assistant research fellow at the institute of semiconductors, chinese academy of sciences. he was assistant research fellow at the yichang semiconductor factory in 1970, and held that office until 1979. in 1978, he was promoted to become research fellow at the i...
wikipedia
60e88cb556d00b3f8543cb8b3c83d082a440ac64
liang was born in hankou (now wuhan), hubei,
liang was born in hankou (now wuhan), hubei, on 18 september 1933. in 1951, he entered wuhan university, majoring in physics. in 1956, he was sent to study in the soviet union on government scholarships, earning his vice-doctorate degree from the baykov institute of metallurgy, academy of sciences of the soviet union i...
wikipedia
35756e1e74591ebcce639338143088a7c73095b7
liang junwu (chinese: 梁骏吾; 18 september 1933 –
liang junwu (chinese: 梁骏吾; 18 september 1933 – 23 june 2022) was a chinese scientist in the field of semiconductor materials, and an academician of the chinese academy of sciences. he is known as the founder of early semiconductor silicon materials in china. he was a member of the chinese communist party (ccp).
wikipedia
62627b333280afaf572ab7834acdbd5e60cdd98f
later, calabi studied the two-dimensional minimal surfaces (of
later, calabi studied the two-dimensional minimal surfaces (of high codimension) in round spheres. he proved that the area of topologically spherical minimal surfaces can only take on a discrete set of values, and that the surfaces themselves are classified by rational curves in a certain hermitian symmetric space.
wikipedia
80c7a358bf6135bd7017e817caed89377a00659e
work of john nash in the 1950s considered
work of john nash in the 1950s considered the problem of isometric embeddings. his work showed that such embeddings are very flexible and deformable. in his phd thesis, calabi had previously considered the special case of holomorphic isometric embeddings into complex-geometric space forms. a striking result of his show...
wikipedia
c68fc0c245f217dc9c8842c3f1155bc47b857fdb
calabi and lawrence markus considered the problem of
calabi and lawrence markus considered the problem of space forms of positive curvature in lorentzian geometry. their results, which joseph a. wolf considered "very surprising", assert that the fundamental group must be finite, and that the corresponding group of isometries of de sitter spacetime (under an orientability...
wikipedia
7909531cfc29dba6812f78813d2f740b1630b01e
inspired by recent work of kunihiko kodaira, calabi
inspired by recent work of kunihiko kodaira, calabi and edoardo vesentini considered the infinitesimal rigidity of compact holomorphic quotients of cartan domains. making use of the bochner technique and kodaira's developments of sheaf cohomology, they proved the rigidity of higher-dimensional cases. their work was an ...
wikipedia
4aeb38f64e86fa5ea007d1fa9a7c22c7401bfcdd
later, calabi considered the problem of affine hyperspheres,
later, calabi considered the problem of affine hyperspheres, first characterizing such surfaces as those for which the legendre transform solves a certain monge–ampère equation. by adapting his earlier methods in extending jörgens' theorem, calabi was able to classify the complete affine elliptic hyperspheres. further ...
wikipedia
105a1797e01818f6a48b0cfca6f15af018c0cc64
in parallel to the classical bernstein problem for
in parallel to the classical bernstein problem for minimal surfaces, calabi considered the analogous problem for maximal surfaces, settling the question in low dimensions. an unconditional answer was found later by cheng and yau, making use of the calabi trick that calabi had pioneered to circumvent the non-differentia...
wikipedia
698d4823bc131f716b387ee8db94be97384d82cb
calabi found the laplacian comparison theorem in riemannian
calabi found the laplacian comparison theorem in riemannian geometry, which relates the laplace–beltrami operator, as applied to the riemannian distance function, to the ricci curvature. the riemannian distance function is generally not differentiable everywhere, which poses a difficulty in formulating a global version...
wikipedia
621a7ad67b4df5c35bb1593bbde6b5a735c49514
a well-known construction of calabi's puts complete kähler
a well-known construction of calabi's puts complete kähler metrics on the total spaces of hermitian vector bundles whose curvature is bounded below. in the case that the base is a complete kähler–einstein manifold and the vector bundle has rank one and constant curvature, one obtains a complete kähler–einstein metric o...
wikipedia
f4ab185c471347ad3dd860f340920750f0fb8755
in 1982, calabi introduced a geometric flow, now
in 1982, calabi introduced a geometric flow, now known as the calabi flow, as a proposal for finding kähler metrics of constant scalar curvature. more broadly, calabi introduced the notion of an extremal kähler metric, and established (among other results) that they provide strict global minima of the calabi functional...
wikipedia
de0c20a1f03e8a7e18b6412b4e325f2517d5a748
at the 1954 international congress of mathematicians, calabi
at the 1954 international congress of mathematicians, calabi announced a theorem on how the ricci curvature of a kähler metric could be prescribed. he later found that his proof, via the method of continuity, was flawed, and the result became known as the calabi conjecture. in 1957, calabi published a paper in which th...
wikipedia
bd5c637683667496070bbab4b5da2dc636b01634
calabi made a number of contributions to the
calabi made a number of contributions to the field of differential geometry. other contributions, not discussed here, include the construction of a holomorphic version of the long line with maxwell rosenlicht, a study of the moduli space of space forms, a characterization of when a metric can be found so that a given d...
wikipedia
eb8a290f818875509e377c27317741d4db167b02
in 1982, calabi was elected to the national
in 1982, calabi was elected to the national academy of sciences. he won the leroy p. steele prize from the american mathematical society in 1991, where his "fundamental work on global differential geometry, especially complex differential geometry" was cited as having "profoundly changed the landscape of the field". in...
wikipedia
8d585f1414b8145d9712d2c40939dd05dc594ac7
from 1951 to 1955 he was an assistant
from 1951 to 1955 he was an assistant professor at louisiana state university, and he moved to the university of minnesota in 1955, where he became a full professor in 1960. in 1964, calabi joined the mathematics faculty at the university of pennsylvania. following the retirement of hans rademacher, he was appointed to...
wikipedia
d518d378375e8b200ea20da08024c3a50696bf32
in the fall of 1939, aged only 16,
in the fall of 1939, aged only 16, calabi enrolled at the massachusetts institute of technology, studying chemical engineering. his studies were interrupted when he was drafted in the us military in 1943 and served during world war ii. upon his discharge in 1946, calabi was able to finish his bachelor's degree under th...
wikipedia
515b4d0d59fe3fa7a42ced3d6b2087e4f504ab00
calabi was born in milan, italy on may
calabi was born in milan, italy on may 11, 1923, into a jewish family. his sister was the journalist tullia zevi calabi. in 1938, the family left italy because of the racial laws, and in 1939 arrived in the united states.
wikipedia
97971548b66dd9cb86fe1053661a53d0708894cf
eugenio calabi (may 11, 1923 – september 25,
eugenio calabi (may 11, 1923 – september 25, 2023) was an italian-born american mathematician and the thomas a. scott professor of mathematics at the university of pennsylvania, specializing in differential geometry, partial differential equations and their applications.
wikipedia
33622f40bee73f0921c623d9fe4d1dc2dd6ad90f
naturally occurring barium (56ba) is a mix of
naturally occurring barium (56ba) is a mix of six stable isotopes and one very long-lived radioactive primordial isotope, barium-130, identified as being unstable by geochemical means (from analysis of the presence of its daughter xenon-130 in rocks) in 2001. this nuclide decays by double electron capture (absorbing tw...
wikipedia
73f2a2a89788f3eecccf918af55a5c29ba450080
there are a total of thirty-three known radioisotopes
there are a total of thirty-three known radioisotopes in addition to ba. the longest-lived of these is ba, which has a half-life of 10.51 years. all other radioisotopes have half-lives shorter than two weeks. the longest-lived isomer is ba, which has a half-life of 38.9 hours. the shorter-lived ba (half-life 2.55 minut...
wikipedia
09770b955bf08ed2cac3ab3453eaba9c2e33115c
naturally occurring barium (ba) is a mix of
naturally occurring barium (ba) is a mix of six stable isotopes and one very long-lived radioactive primordial isotope, barium-130, identified as being unstable by geochemical means (from analysis of the presence of its daughter xenon-130 in rocks) in 2001. this nuclide decays by double electron capture (absorbing two ...
wikipedia
ec113b2cd7ed3b669c9e6a6a9b7d1cc1d7797d30
rodney coleman jarrett is a canadian former professional
rodney coleman jarrett is a canadian former professional ice hockey defenseman, who played one game in the national hockey league (nhl) with the new york islanders. as of 2021, he is an owner and the head coach of the soo thunderbirds in the northern ontario junior hockey league.
wikipedia
172d762a86a22338fe0372463c14d95627b946de
after two seasons in villacher, jarrett returned to
after two seasons in villacher, jarrett returned to japan as a free agent for a second stint with the tohoku free blades on july 22, 2015. on 26 july 2017, jarrett moved to the uk to sign for eihl side belfast giants, ending his 15 year professional career with the club.
wikipedia