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6f850e051762db4c94bf52896d8d0f2a4c64a0b9
bridge street bridge, also known as veterans memorial
bridge street bridge, also known as veterans memorial bridge, is a two-span pratt through truss bridge that crosses the grand river in portland, michigan, in the united states. completed in 1890, it is the oldest known surviving example of a truss bridge built in the state by the groton bridge and manufacturing company...
wikipedia
a0477661c8bd081c12d1ade94cd550efb733a11e
sudhanshu vrati is an indian immunologist, microbiologist and
sudhanshu vrati is an indian immunologist, microbiologist and the director of the regional centre for biotechnology. known for his studies in the fields of rna virus replication and vaccine development, vrati is an elected fellow of the national academy of sciences, india, indian national science academy and the indian...
wikipedia
440a33fd5ab080b974a95baa2670b2c3a9b7487a
it was during his days at the national
it was during his days at the national institute of immunology, vrati received the 2001 vasvik industrial research award. the department of biotechnology of the government of india awarded him the national bioscience award for career development, one of the highest indian science awards in 2003; the elected membership ...
wikipedia
44a550a5bde47fb742a2b263c5d73f96957263a3
vrati's early researches at thsti focused on jev
vrati's early researches at thsti focused on jev life-cycle like receptor binding and entry mechanisms, molecular mechanisms of virus replication, assembly, egress as well as the clinical development of an oral rotavirus vaccine. later, he concentrated on the development of dna vaccines and the details of the work has ...
wikipedia
213b0b5d8d238ce69794764f3cd61099310d5226
born on 19 march 1960 in the indian
born on 19 march 1960 in the indian state of uttar pradesh, sudhanshu vrati earned an msc in microbiology from g. b. pant university of agriculture and technology and did a diit in biochemical engineering at the indian institute of technology, delhi. subsequently, he moved to australia for his doctoral studies and secu...
wikipedia
45947bc3bdf85f2f8cbd593a813cf4213922cfc8
sudhanshu vrati (born 19 march 1960) is an
sudhanshu vrati (born 19 march 1960) is an indian immunologist, microbiologist and the director of the regional centre for biotechnology. known for his studies in the fields of rna virus replication and vaccine development, vrati is an elected fellow of the national academy of sciences, india, indian national science a...
wikipedia
ee2b5cd1b1a281d97b4c87e1f25b76c0712a3879
around this time, picarte moved to the southern
around this time, picarte moved to the southern chilean town of san carlos. then, in 1866, he moved to chillán, where in 1869 he married clorinda pardo, the daughter of a chilean army colonel. it is not known if the couple had any children. he made the news again in 1883 when he published "large logarithm tables to twe...
wikipedia
5bf5ab219083752605280f2b47d8926e8b5a5817
as a lawyer, picarte offered his services for
as a lawyer, picarte offered his services for free to those who were unable to pay. he also wrote and published leaflets that explained the key rights enshrined in the chilean civil code in simple words, putting them within reach of those with no knowledge of the law.
wikipedia
41bf00e6cb0188e50aff4c355b822ec1a4da17c6
in the years that followed, picarte dedicated himself
in the years that followed, picarte dedicated himself to this project, though again, he received almost no support. but he was not just an intellectual: in 1863, he organized a union for tailors, and another for shoemakers. in 1864, he took his ideas to a larger scale with the "sociedad trabajo para todos" (society of ...
wikipedia
71da71dd962e5935d5c1069d97cdd4cf8890fae5
observing the conditions in his own country and
observing the conditions in his own country and comparing them to what was happening in europe, picarte developed an interesting theory that he incorporated to his university thesis, called: "the importance of life insurance, and related projects which are likely to be established in chile" (importancia de la instituci...
wikipedia
901ed31214a239443104efcbee04a88b09762f64
when he returned to chile, picarte was preoccupied
when he returned to chile, picarte was preoccupied with the social problems that he saw around him. in france he had learned about the socialist ideas of charles fourier, cousin of famous mathematician françois marie charles fourier. these ideas had a great impact on him, and he dedicated himself to helping to solve ch...
wikipedia
068c542c34365831699c3f7bde4822d4fb48d67c
picarte returned to chile in 1862. in october
picarte returned to chile in 1862. in october of that year he joined the faculty of physics and maths at the university of chile, although he didn't teach classes until the beginning of 1890. free of financial problems, he dedicated his life to his studies. he patented three inventions: a siphon pump, a steam siphon an...
wikipedia
e6a4d788745c6d9e621ad4d3c43899230748bd40
in paris, with no more than his tables
in paris, with no more than his tables and the clothes on his back, he followed the advice of other mathematicians and spent 5 months reviewing and compiling his work in order to present it to the french academy of sciences. he finally presented his work on 15 february 1859 and received warm praise from the academics. ...
wikipedia
e8cd010cd601cff933f0710eac51d25cb9caa074
confident in the value of his invention despite
confident in the value of his invention despite the lack of recognition in chile, picarte decided to leave his homeland. he travelled to peru in 1857, where he also failed to find a publisher. he stayed for two months taking on whatever casual work he could find, and begged his chilean acquaintances for money to contin...
wikipedia
04d6368246bb8be59e7f5dd9c9a17cecd8aa8b18
essentially, picarte's work did not align with the
essentially, picarte's work did not align with the needs of president manuel montt ’s development project for the newly born nation. there were no government financial support for scientific or mathematical research, and lalande's existing tables were sufficient for pedro josé amadeo pissis ’s work on topographical map...
wikipedia
40ca10fc2f2873d0c23fce032dafd4a7da383374
picarte asked other chilean mathematicians examine his work
picarte asked other chilean mathematicians examine his work but did not receive an enthusiastic response. he tried to sell the copyrights for it at a very low price so that it could be published and distributed, but was unable to find a buyer. he then applied for support from the government but received the same respon...
wikipedia
f0a5f1eb7d7271177db0eb61145bc6ab316ce92c
he translated and improved the most commonly used
he translated and improved the most commonly used logarithm tables in chile, and invented a new way of calculating divisions by creating a table that allowed mathematicians to divide any number up to 10,000 with a simple sum. he also improved the lalande algorithm tables which were widely used by engineers, architects,...
wikipedia
d0d018e509ef75fafb78a77846bdda64d4799e20
in 1854, picarte became a mathematics professor at
in 1854, picarte became a mathematics professor at the military academy of the chilean army. in those days, mathematics was dependent on mathematical tables, which were as important for mathematicians as computers are today. there were just a few limited division and multiplication tables available in chile at the time...
wikipedia
5726427b0329dfaf5723485e1cb3fad21ade2862
picarte began his studies on the humanities course,
picarte began his studies on the humanities course, but soon after finishing the roman law module, he switched to maths. fortunately for him, he had an excellent maths teacher in andrés antonio gorbea. for professor gorbea, maths was an essential part of education and should not be limited to the requirements of future...
wikipedia
edebed4bbfec46b9184639bc913898911c672c72
picarte studied in one of the most prestigious
picarte studied in one of the most prestigious and old state schools in chile, the general josé miguel carrera national institute from 1840. some of his classmates would become illustrious figures, including guillermo, joaquín and alberto blest gana; víctor and miguel luis amunátegui; diego barros arana, one of the fat...
wikipedia
d7609beb9e149b93bedf08baf38d6e9c87fad359
his secondary education was better. at the time,
his secondary education was better. at the time, secondary education in chile was divided in two basic courses: humanities (intended for future lawyers) and mathematics (for future surveyors). the former was a longer course but gave a more promising future.
wikipedia
e8ceea544cd410fa6681caca8bc40fef1b30a4ff
little is known of picarte's early education. the
little is known of picarte's early education. the subjects studied in chile at the time were reading, writing, christian doctrine, arithmetic (addition, subtraction, division, multiplication) and morality and etiquette. that was considered more than enough for ordinary citizens.
wikipedia
25a9ac38ee06c926f62613fe731c4255e5e49861
picarte was born on 9 june 1830, to
picarte was born on 9 june 1830, to father ramon picarte and mother carmen mujica. his father, a colonel in the independence army, had an outstanding career under the command of josé miguel carrera: he took part in many of the actions that led to chilean independence, became commander of the garrison of valparaíso, and...
wikipedia
42d750888169a2afb3479429ff4167bd6f292dbe
milos r. popovic is a scientist specializing in
milos r. popovic is a scientist specializing in functional electrical stimulation (fes) and neurorehabilitation. as of 2018, he is director of the kite research institute at uhn toronto rehabilitation institute (tri), and a professor with the institute of biomaterials and biomedical engineering at the university of tor...
wikipedia
94f2ecc80810a4d839ec5d6a446c644bed04e8d6
in 2004, he was a co-founder of the
in 2004, he was a co-founder of the canadian national spinal cord injury conference, and since acts as a co-chair for the annual event. as part of his work with idapt, he also contributed to the spinal cord injury: a manifesto for change.
wikipedia
787e42cad94d2b16ed8b55efb64013e48aa28538
in 2008, popovic co-founded medical technology company myndtec
in 2008, popovic co-founded medical technology company myndtec based on the fes system that has been a focus of his research. the firm develops myndmove, a transcutaneous fes therapy to improve function and maximize independence for patients with stroke- and spinal-cord injury-related paralysis.
wikipedia
096ea50f5212a8ffdce82c8898d6bc9db29faa3c
popovic developed compex motion, a portable and programmable
popovic developed compex motion, a portable and programmable system used for transcutaneous fes, in collaboration with swiss company compex sa. the stimulator can be programmed to generate a variety of stimulation sequences, can be connected to other systems to increase channel capabilities, and can be controlled exter...
wikipedia
cc9c75f7607ed1b1757a0986bd931a7060ec24dc
popovic is involved in the development of various
popovic is involved in the development of various brain-machine interfaces (bmi) for use in humans, using implantable electrocorticographic (ecog) and surface electroencephalographic (eeg) electrode. a neuroprosthesis study conducted using ecog achieved high accuracy in producing intended grasp-and-release functionalit...
wikipedia
095ba016203008f6ac1d318ec59c960352d5c9f4
popovic has led studies investigating the use of
popovic has led studies investigating the use of fes in the rehabilitation of muscular function for stroke victims with extremely limited arm and hand mobility in comparison with conventional therapy. one of the best-known publications is "rehabilitation of reaching and grasping function in severe hemiplegic patients u...
wikipedia
4fb4963282995bb69bee48d1109df67686a6de24
functional electrical stimulation (fes) uses bursts of short
functional electrical stimulation (fes) uses bursts of short electrical pulses to generate muscle contraction. application of these electrical pulses to motor nerves results in generation of an action potential along the axon of that nerve towards its targeted muscle. with electrodes placed on the skin over the muscle,...
wikipedia
d4a6d54de80382457c6747403cf35a9c988a5a40
in july 2001, popovic established the rehabilitation engineering
in july 2001, popovic established the rehabilitation engineering laboratory (rel) at the lyndhurst centre of toronto rehabilitation institute. the laboratory supports multiple research groups, under supervision of 6 principal investigators, including the popovic lab. in 2018, popovic was appointed tri's director of res...
wikipedia
aee0125305b6f5307f7ab8ed7c6bd4c39403c5f2
popovic received a dipl. of electrical engineering from
popovic received a dipl. of electrical engineering from the university of belgrade in his native serbia in 1990. he then earned his ph.d in mechanical engineering from the university of toronto in 1996... his ph.d thesis was on friction modelling and control, under supervision of andrew goldenberg.
wikipedia
42d750888169a2afb3479429ff4167bd6f292dbe
milos r. popovic is a scientist specializing in
milos r. popovic is a scientist specializing in functional electrical stimulation (fes) and neurorehabilitation. as of 2018, he is director of the kite research institute at uhn toronto rehabilitation institute (tri), and a professor with the institute of biomaterials and biomedical engineering at the university of tor...
wikipedia
6ef6215f236af02ee3f13f17c8976fdf71d81fbd
the 2013 wimbledon championships men's singles final was
the 2013 wimbledon championships men's singles final was the championship tennis match of the men's singles tournament at the 2013 wimbledon championships. a significant part of the djokovic–murray rivalry, it pitted the world's top two players, novak djokovic and andy murray, against each other in a grand slam final f...
wikipedia
f6a5f372ce37923b82c802ab1c712c414557d42e
murray's wimbledon victory dominated most of the british
murray's wimbledon victory dominated most of the british newspapers. it also even made front-page headlines on serbia's two biggest newspapers, blic and politika, and also dominated the sports sections of the new york times in the united states and australia's sydney morning herald.
wikipedia
bd8549753ca8f68e381f1f2627b3596d4a5cf11b
this young man deserves every bit of his
this young man deserves every bit of his success, he's not just overcome adversity it is all about constant improvement. he does everything to continue his game, if he has to build himself up, he builds himself up, if he has to train himself to do things he didn't like doing, he does that. everything about him is about...
wikipedia
af33edab5219559b01c0a652a769c259058217c9
prime minister of the united kingdom, david cameron,
prime minister of the united kingdom, david cameron, the queen, sir chris hoy, fred perry's daughter, penny, mayor of london boris johnson, wta players laura robson and victoria azarenka, and scotland's first minister, alex salmond, were also among those who paid tribute.
wikipedia
f898b984976f4d3e7ee738f6d4bcd2fa559a3837
it's absolutely fantastic. it was the sheer will,
it's absolutely fantastic. it was the sheer will, that ability to find a way to get the job done when djokovic would not go away. he was serving for history, 40-0 up and djokovic saved three match points. it's an unbelievable achievement for him and one we're all incredibly proud of. he always in his heart of hearts be...
wikipedia
a81517060de3a5aaa3607d722b0dfb5477002519
it wasn't easy. andy deserves the win, he
it wasn't easy. andy deserves the win, he played incredible tennis. congratulations to him and his whole team and the country, i know what it means to you all. it makes the success even bigger as i am aware of the pressure he gets. there are always lots of expectations on him to win this tournament. it's a great achiev...
wikipedia
fdd80b41afe38932d1f6596992f6173f29bb3aa4
it feels slightly different to last year. last
it feels slightly different to last year. last year was one of the toughest moments of my career, so to manage to win the tournament today... it was an unbelievably tough match, so many long games. it was tough speaking after the match. there are a lot of people who have worked with me over the last 10 or 15 years or s...
wikipedia
e71f07185dfa05be0a76dd1a59e9c0c472c8d2d5
murray thus became the first british man since
murray thus became the first british man since fred perry to win the wimbledon men's singles title. djokovic, meanwhile, missed his chance to win a second wimbledon title after his victory over rafael nadal in 2011.
wikipedia
489896fdde4b48893af249310c4246fbbdecc577
murray then broke early to take a 2–0
murray then broke early to take a 2–0 lead in the third set, but then djokovic won four games in a row to lead 4–2 on serve. murray then broke again to keep the set on serve, and then held his subsequent service game to level the set at 4–all. murray once again broke to take a 5–4 lead, thus putting himself in a strong...
wikipedia
fcaa9388ada06fc0ed07248485b948fe3b68d1b8
djokovic then started to make a comeback as
djokovic then started to make a comeback as he broke to take a 4–1 lead in the second set, though murray then won the next three games to level the set at 4–4. murray broke once again at 6–5 and once again served an ace on set point to win the second set 7–5 and thus go two sets up.
wikipedia
a9ad4b2ef75fad2aa4a6ed7fa57968b5e2d4e703
andy murray won the pre-match coin toss and
andy murray won the pre-match coin toss and chose ends, novak djokovic elected to serve first. andy murray then tested his serve early, earning three break points before djokovic reeled off five consecutive points to take the opening game of the match. murray then broke to take a 2–1 lead, but was immediately broken ri...
wikipedia
9bb547a596c2892f665ce02f437fb0ad4a4e428b
the match took place on the final day
the match took place on the final day of the 2013 edition of the 13-day wimbledon championships, held every june and july. these two players had been heavily favoured to meet in the final following the early round defeats of rafael nadal, roger federer and jo-wilfried tsonga, among others. novak djokovic was the top se...
wikipedia
8f12f40e96ae53bfbfacedb18b8c1725ba3b79c2
after three hours and nine minutes, second seeded
after three hours and nine minutes, second seeded murray defeated world no. 1 djokovic 6–4, 7–5, 6–4 to win the match. by winning the 2013 wimbledon championships, murray became the first british man since fred perry in 1936 to win the wimbledon title and the first scottish man since harold mahony in 1896 to win the ti...
wikipedia
c686cd65c6a8b4e1960f73484d64eea9d279bd42
the 2013 wimbledon championships men's singles final was
the 2013 wimbledon championships men's singles final was the championship tennis match of the men's singles tournament at the 2013 wimbledon championships. a significant part of the djokovic–murray rivalry, it pitted the world's top two players, novak djokovic and andy murray, against each other in a grand slam final f...
wikipedia
c43fadbf0efeae97a77e7160e6e82c05d48560cf
an osmotic coefficient ϕ is a quantity which
an osmotic coefficient ϕ is a quantity which characterises the deviation of a solvent from ideal behaviour, referenced to raoult's law. it can be also applied to solutes. its definition depends on the ways of expressing chemical composition of mixtures. the osmotic coefficient based on molality m is defined by: ϕ = μ a...
wikipedia
7c63f39b3eac0520a6272dc1d72e10191b255350
coefficient is sometimes called the rational osmotic coefficient.
coefficient is sometimes called the rational osmotic coefficient. the values for the two definitions are different, but since ln ⁡ x a = − ln ⁡ ≈ − m a ∑ i m i , the two definitions are similar, and in fact both approach 1 as the concentration goes to zero.
wikipedia
c5d4ae50f0ecdeb9f2aa7ae38c87734cdc90d7c1
this means that, at least at low concentrations,
this means that, at least at low concentrations, the vapor pressure of the solvent will be greater than that predicted by raoult's law. for instance, for solutions of magnesium chloride, the vapor pressure is slightly greater than that predicted by raoult's law up to a concentration of 0.7 mol/kg, after which the vapor...
wikipedia
42f7eca8734064cc899c1e7855a3e1527e6fffd8
according to debye–hückel theory, which is accurate only
according to debye–hückel theory, which is accurate only at low concentrations, (ϕ − 1) ∑ i m i {\textstyle (\phi -1)\sum _{i}m_{i}} is asymptotic to − 2 3 a i 3 / 2 {\textstyle -{\frac {2}{3}}ai^{3/2}}, where i is ionic strength and a is the debye–hückel constant (equal to about 1.17 for water at 25 °c).
wikipedia
a846eca066a8d8dab1a5b3a6131a26c079a74a47
for a single salt solute with molal activity
for a single salt solute with molal activity (γ ± m {\displaystyle \gamma _{\pm }m}), the osmotic coefficient can be written as ϕ = − ln (a a) ν m m a {\displaystyle \phi ={\frac {-\ln(a_{a})}{\nu mm_{a}}}} where ν {\displaystyle \nu } is the stochiometric number of salt and a a {\displaystyle a_{a}} the activity of th...
wikipedia
ade8cbc216096feacfe7eab984e24f3ab0df3973
in a single solute solution, the (molality based)
in a single solute solution, the (molality based) osmotic coefficient and the solute activity coefficient γ {\displaystyle \gamma } are related to the excess gibbs free energy g e {\displaystyle g^{e}} by the relations:
wikipedia
e5b705621f760b2f8d62b451f28aac2883c64b5d
for liquid solutions, the osmotic coefficient is often
for liquid solutions, the osmotic coefficient is often used to calculate the salt activity coefficient from the solvent activity, or vice versa. for example, freezing point depression measurements, or measurements of deviations from ideality for other colligative properties, allows calculation of the salt activity coef...
wikipedia
49a92898f83c39f8b6c3a23aeb5d5c6bed5a7513
ln x a = − ln (1 +
ln x a = − ln (1 + m a ∑ i m i) ≈ − m a ∑ i m i, {\displaystyle \ln x_{a}=-\ln \left(1+m_{a}\sum _{i}m_{i}\right)\approx -m_{a}\sum _{i}m_{i},}
wikipedia
dd1e9fe1dc513e5708d8547ab919ace08283dc23
where μ a ∗ {\displaystyle \mu _{a}^{*}} is
where μ a ∗ {\displaystyle \mu _{a}^{*}} is the chemical potential of the pure solvent and μ a {\displaystyle \mu _{a}} is the chemical potential of the solvent in a solution, m is its molar mass, x its mole fraction, r the gas constant and t the temperature in kelvin. the latter osmoticcoefficient is sometimes called ...
wikipedia
663d65fea2dcd551727eab06d23fcdfc03fc5954
the osmotic coefficient based on molality m is
the osmotic coefficient based on molality m is defined by: ϕ = μ a ∗ − μ a r t m a ∑ i m i {\displaystyle \phi ={\frac {\mu _{a}^{*}-\mu _{a}}{rtm_{a}\sum _{i}m_{i}}}}
wikipedia
144e8d0b5e6a7111c483fd7701f390f2e5552460
an osmotic coefficient ϕ {\displaystyle \phi } is
an osmotic coefficient ϕ {\displaystyle \phi } is a quantity which characterises the deviation of a solvent from ideal behaviour, referenced to raoult's law. it can be also applied to solutes. its definition depends on the ways of expressing chemical composition of mixtures.
wikipedia
6c541abd52488818d443336b07e4173c911748ff
in pattern recognition, the idistance is an indexing
in pattern recognition, the idistance is an indexing and query processing technique for k-nearest neighbor queries on point data in multi-dimensional metric spaces. the knn query is one of the hardest problems on multi-dimensional data, especially when the dimensionality of the data is high. the idistance is designed t...
wikipedia
19b70947c15d770385af064e6b7e345e2d282727
the idistance was first proposed by cui yu,
the idistance was first proposed by cui yu, beng chin ooi, kian-lee tan and h. v. jagadish in 2001. later, together with rui zhang, they improved the technique and performed a more comprehensive study on it in 2005.
wikipedia
02491c6b76dd795a053a19c85ca1371427fdf656
the idistance technique can be viewed as a
the idistance technique can be viewed as a way of accelerating the sequential scan. instead of scanning records from the beginning to the end of the data file, the idistance starts the scan from spots where the nearest neighbors can be obtained early with a very high probability.
wikipedia
bc6030422d2e1c724f68500e35d043cd30885cb1
to process a knn query, the query is
to process a knn query, the query is mapped to a number of one-dimensional range queries, which can be processed efficiently on a b -tree. in the above figure, the query q is mapped to a value in the b -tree while the knn search ``sphere" is mapped to a range in the b -tree. the search sphere expands gradually until th...
wikipedia
219e8bb658b853f3d187327ffc9174944383cd76
the figure on the right shows an example
the figure on the right shows an example where three reference points (o, o, o) are chosen. the data points are then mapped to a one-dimensional space and indexed in a b -tree. various extensions have been proposed to make the selection of reference points for effective query performance, including employing machine le...
wikipedia
6c541abd52488818d443336b07e4173c911748ff
in pattern recognition, the idistance is an indexing
in pattern recognition, the idistance is an indexing and query processing technique for k-nearest neighbor queries on point data in multi-dimensional metric spaces. the knn query is one of the hardest problems on multi-dimensional data, especially when the dimensionality of the data is high. the idistance is designed t...
wikipedia
6488b62a152bffda8c88c93d5db3a2674fa34a8f
on 4 february 2024, he was named as
on 4 february 2024, he was named as caretaker coach of the egyptian national team, following the dismissal of rui vitória. two days later, hossam hassan became the head coach of egypt, and youssef refused to take an administrative manager role.
wikipedia
853a91f036840334076c6c5d6dc3195acdb52d44
in july 2017, he became head coach of
in july 2017, he became head coach of petrojet in the egyptian premier league. in june 2018, youssef returned to al-ahly as an assistant coach and sports director till the end of his contract on 31 august 2019. on 19 october 2020, he was appointed as the head coach of the newly promoted national bank of egypt. in novem...
wikipedia
44c0503bd839e335129480e3af5e3d7e368358fc
on 7 may 2013, youssef was promoted as
on 7 may 2013, youssef was promoted as head coach. he led al-ahly to win the 2013 caf champions league, and reached the 2013 fifa club world cup. in morocco. on 1 may 2014, he resigned from al-ahly. on 23 july 2014, he was appointed as manager of iraqi premier league champions al shorta sc. despite winning 11 and drawi...
wikipedia
351af158525aae5e2fa3a6e23f436408205b3f40
youssef was the captain of the egyptian team
youssef was the captain of the egyptian team in the barcelona 1992 summer olympics and scored a goal against colombia. he made his debut with the first egyptian national team in a 1994 african nations cup qualifier against morocco on 11 july 1993. youssef made 95 appearances for egypt national football team, including ...
wikipedia
782a8c4eab69c05bce9ea17097bf7051fe74d463
youssef began his professional career in the egyptian
youssef began his professional career in the egyptian premier league with al ahly, winning six league titles over an eight-year period. in 1999, he moved to turkey where he played in the super lig for denizlispor and diyarbakirspor. he returned to egypt to play with egyptian premier league side enppi.
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67c43642dac1dd870f3a59e2bf082483ef250fc7
mohamed youssef (arabic: محمد يوسف; born 9 october
mohamed youssef (arabic: محمد يوسف; born 9 october 1970) is an egyptian former professional footballer who played as a defender for several clubs in egypt and turkey and the egypt national team.
wikipedia
dd871c5ef80401c5b72db75164a52f8c7450dbf6
in mathematics, a generalized hypergeometric series is a
in mathematics, a generalized hypergeometric series is a power series in which the ratio of successive coefficients indexed by n is a rational function of n. the series, if convergent, defines a generalized hypergeometric function, which may then be defined over a wider domain of the argument by analytic continuation. ...
wikipedia
cee81bf0fd463032bcb52553418165cc72150749
special hypergeometric functions occur as zonal spherical functions
special hypergeometric functions occur as zonal spherical functions on riemannian symmetric spaces and semi-simple lie groups. their importance and role can be understood through the following example: the hypergeometric series f has the legendre polynomials as a special case, and when considered in the form of spheric...
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fbdc4736486cbd4dc002f8290265361e6e953dd1
during the twentieth century this was a fruitful
during the twentieth century this was a fruitful area of combinatorial mathematics, with numerous connections to other fields. there are a number of new definitions of general hypergeometric functions, by aomoto, israel gelfand and others; and applications for example to the combinatorics of arranging a number of hyper...
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7589c16e73e84e6460d3a86bdfdd2dc0624b4ef2
the generalized hypergeometric function is linked to the
the generalized hypergeometric function is linked to the meijer g-function and the macrobert e-function. hypergeometric series were generalised to several variables, for example by paul emile appell and joseph kampé de fériet; but a comparable general theory took long to emerge. many identities were found, some quite r...
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5511a734863fa78a6012e203d22a069327a1cdc0
for each integer n ≥2, the roots of
for each integer n ≥2, the roots of the polynomial x − x +t can be expressed as a sum of at most n −1 hypergeometric functions of type f, which can always be reduced by eliminating at least one pair of a and b parameters.
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caf1f0671d3f98798b5a42fb91e0c96c44ae0272
all roots of a quintic equation can be
all roots of a quintic equation can be expressed in terms of radicals and the bring radical, which is the real solution to x 5 + x + a = 0 {\displaystyle x^{5}+x+a=0}. the bring radical can be written as:
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dfabfbd8e4f0c471c519d1865c85bb7f1b221f04
is a polynomial. up to constant factors and
is a polynomial. up to constant factors and scaling, these are the jacobi polynomials. several other classes of orthogonal polynomials, up to constant factors, are special cases of jacobi polynomials, so these can be expressed using f as well. this includes legendre polynomials and chebyshev polynomials.
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915aadc886abc4a16100897ea3b8e7e84f5c0620
historically, the most important are the functions of
historically, the most important are the functions of the form 2 f 1 (a, b; c; z) {\displaystyle {}_{2}f_{1}(a,b;c;z)}. these are sometimes called gauss's hypergeometric functions, classical standard hypergeometric or often simply hypergeometric functions. the term generalized hypergeometric function is used for the fu...
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7643690c9248e8259e04f8aa17c318677e7bcc04
the lommel function is s μ, ν (z)
the lommel function is s μ, ν (z) = z μ + 1 (μ − ν + 1) (μ + ν + 1) 1 f 2 (1; μ 2 − ν 2 + 3 2, μ 2 + ν 2 + 3 2; − z 2 4) {\displaystyle s_{\mu,\nu }(z)={\frac {z^{\mu +1}}{(\mu -\nu +1)(\mu +\nu +1)}}{}_{1}f_{2}(1;{\frac {\mu }{2}}-{\frac {\nu }{2}}+{\frac {3}{2}},{\frac {\mu }{2}}+{\frac {\nu }{2}}+{\frac {3}{2}};-{\f...
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6e079a3d864d49211e866ef42764d996f98e4bc7
the function x 1 f 2 (1 2;
the function x 1 f 2 (1 2; 3 2, 3 2; − x 2 4) {\displaystyle x\;{}_{1}f_{2}\left({\frac {1}{2}};{\frac {3}{2}},{\frac {3}{2}};-{\frac {x^{2}}{4}}\right)} is the antiderivative of the cardinal sine. with modified values of a 1 {\displaystyle a_{1}} and b 1 {\displaystyle b_{1}}, one obtains the antiderivative of sin (x ...
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when a is a non-positive integer, − n,
when a is a non-positive integer, − n, 1 f 1 (− n; b; z) {\displaystyle {}_{1}f_{1}(-n;b;z)} is a polynomial. up to constant factors, these are the laguerre polynomials. this implies hermite polynomials can be expressed in terms of f as well.
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b80b4d108995218ddbaea1a7e038bb0c5e21c805
the functions of the form 1 f 1
the functions of the form 1 f 1 (a; b; z) {\displaystyle {}_{1}f_{1}(a;b;z)} are called confluent hypergeometric functions of the first kind, also written m (a; b; z) {\displaystyle m(a;b;z)}. the incomplete gamma function γ (a, z) {\displaystyle \gamma (a,z)} is a special case.
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as noted earlier, 0 f 0 (;; z)
as noted earlier, 0 f 0 (;; z) = e z {\displaystyle {}_{0}f_{0}(;;z)=e^{z}}. the differential equation for this function is d d z w = w {\displaystyle {\frac {d}{dz}}w=w}, which has solutions w = k e z {\displaystyle w=ke^{z}} where k is a constant.
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using the technique outlined above, an identity relating
using the technique outlined above, an identity relating 0 f 1 (; a; z) {\displaystyle {}_{0}f_{1}(;a;z)} and its two contiguous functions can be given, six identities relating 1 f 1 (a; b; z) {\displaystyle {}_{1}f_{1}(a;b;z)} and any two of its four contiguous functions, and fifteen identities relating 2 f 1 (a, b; c...
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d d z p f q = ∏
d d z p f q = ∏ i = 1 p a i ∏ j = 1 q b j p f q {\displaystyle {\begin{aligned}{\frac {\rm {d}}{{\rm {d}}z}}\;{}_{p}f_{q}\left&={\frac {\prod _{i=1}^{p}a_{i}}{\prod _{j=1}^{q}b_{j}}}\;{}_{p}f_{q}\left\end{aligned}}}
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(z d d z + b k −
(z d d z + b k − 1) p f q = (b k − 1) p f q for b k ≠ 1 {\displaystyle {\begin{aligned}\left(z{\frac {\rm {d}}{{\rm {d}}z}}+b_{k}-1\right){}_{p}f_{q}\left&=(b_{k}-1)\;{}_{p}f_{q}\left{\text{ for }}b_{k}\neq 1\end{aligned}}}
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dd39d89100783b83d3ade97d8cd31991e537de51
it is immediate from the definition that the
it is immediate from the definition that the order of the parameters a, or the order of the parameters b can be changed without changing the value of the function. also, if any of the parameters a is equal to any of the parameters b, then the matching parameters can be "cancelled out", with certain exceptions when the ...
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6b8d15294ea1f3c092502110ffd071af38996812
further, if p = q +1, ∑ i
further, if p = q +1, ∑ i = 1 p a i ≥ ∑ j = 1 q b j {\displaystyle \sum _{i=1}^{p}a_{i}\geq \sum _{j=1}^{q}b_{j}} and z is real, then the following convergence result holds quigley et al. (2013):
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608449c6de80d5b8f52ff257976677a87b7486d1
the ordinary hypergeometric series should not be confused
the ordinary hypergeometric series should not be confused with the basic hypergeometric series, which, despite its name, is a rather more complicated and recondite series. the "basic" series is the q-analog of the ordinary hypergeometric series. there are several such generalizations of the ordinary hypergeometric seri...
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cdf71e81b03d06cfe1e1ce5cd9ecc74ef8c8095b
for historical reasons, it is assumed that (1
for historical reasons, it is assumed that (1 + n) is a factor of b. if this is not already the case then both a and b can be multiplied by this factor; the factor cancels so the terms are unchanged and there is no loss of generality.
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bc3fd84bcc39b0edc3605b94e01575e668970673
it is customary to factor out the leading
it is customary to factor out the leading term, so β is assumed to be 1. the polynomials can be factored into linear factors of the form (a + n) and (b + n) respectively, where the a and b are complex numbers.
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dd871c5ef80401c5b72db75164a52f8c7450dbf6
in mathematics, a generalized hypergeometric series is a
in mathematics, a generalized hypergeometric series is a power series in which the ratio of successive coefficients indexed by n is a rational function of n. the series, if convergent, defines a generalized hypergeometric function, which may then be defined over a wider domain of the argument by analytic continuation. ...
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af6fa93828bf7b5fd6c275130afbc2d3c5eb51b6
when he retired from cps in 1951, stout
when he retired from cps in 1951, stout became director of pathology at francis delafield hospital, a municipal cancer hospital affiliated with columbia university. in 1954, he coined the term fibromatosis (in the name congenital generalized fibromatosis, describing myofibromatosis). he remained a professor emeritus of...
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a9b7e4fcc0724a9f59d9044365eaf44fa84170e4
stout authored over 300 scientific articles and one
stout authored over 300 scientific articles and one monograph, entitled human cancer (1932). he also wrote three fascicles for the atlas of tumor pathology, published by the armed forces institute of pathology. he belonged to several professional societies and was the recipient of many awards. in 1947, an organization ...
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1ba00eaf66af9c334c56f930274de65f899632f0
although trained as a surgeon, stout turned all
although trained as a surgeon, stout turned all of his attention to the pathomorphologic findings in surgical specimens. in particular, he acquired a special expertise in tumor pathology. he served as director of the laboratory of surgical pathology at the columbia-presbyterian medical center from the late 1920s until ...
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returning to cps thereafter, he became an assistant
returning to cps thereafter, he became an assistant professor of surgery in 1921, an associate professor in 1928 and a full professor in 1947. beginning in 1950, he also held the concomitant rank of professor of pathology.
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stout was a surgical house-officer at roosevelt hospital
stout was a surgical house-officer at roosevelt hospital in new york city; he then joined the staff of cps in 1914 as an instructor in surgery. during world war i, dr. stout was a field surgeon in the u.s. army in france (see image at right).
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arthur purdy stout was the fourth son of
arthur purdy stout was the fourth son of joseph and julia frances (née purdy) stout. he attended the pomfret school and yale university, where he earned an a.b. degree in 1907. after spending a year abroad, arthur entered the college of physicians & surgeons (cps) of columbia university. he completed his m.d. degree in...
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michael lee wehmeyer is the ross and marianna
michael lee wehmeyer is the ross and marianna beach distinguished professor in special education in the department of special education at the university of kansas. his research focuses on self-determination and self-determined learning, the application of positive psychology and strengths-based approaches to disabilit...
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dr. wehmeyer has received several awards for his
dr. wehmeyer has received several awards for his research. in 2013, he received the distinguished researcher award from the arc of the united states, presented to a career academic researcher whose work has significantly advanced the field of research in intellectual and developmental disabilities. in 2015, dr. wehmeye...
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