نتایج جستجو برای: ă
تعداد نتایج: 184 فیلتر نتایج به سال:
The observed extragalactic background light (EBL) is affected by light attenuation due to absorption of light by galactic and intergalactic dust in the Universe. Even galactic opacity of 10-20 percent and minute universe intergalactic opacity of 0.01 mag h Gpc ́1 at the local Universe have a significant impact on the EBL because obscuration of galaxies and density of intergalactic dust increase ...
Computing from Projections of Random Points: a Dense Hierarchy of Subideals of the K-trivial Degrees
We study the sets that are computable from both halves of some (Martin-Löf) random sequence, which we call 1{2-bases. We show that the collection of such sets forms an ideal in the Turing degrees that is generated by its c.e. elements. It is a proper subideal of the K-trivial sets. We characterise 1{2-bases as the sets computable from both halves of Chaitin’s Ω, and as the sets that obey the co...
We give an introduction to classical algorithms for the maximum matching problem in bipartite graphs and then present a 1` ε approximation algorithm for the same problem in bipartite graph streams, which only requires Opn ̈ poly lognq bits of random-access memory and Opε ́5q passes over the input. All the algorithms are combinatorial in nature and use the augmenting paths technique. The streamin...
Ăvod: ZĂĄkladem lĂŠÄby u ÄasnĂ˝ch stadiĂ karcinomu laryngu jsou chirurgickĂŠ pĹĂstupy zachovĂĄvajĂcĂ funkÄnost hrtanu. U pokroÄilĂ˝ch pĹedstavuje totĂĄlnĂ laryngektomie vĂ˝znamnou mutilaci pacienta a metodou volby je zde (chemo)radioterapie jako orgĂĄn zĂĄchovnĂ˝ postup lĂŠÄby. CĂlem sdÄlenĂ prezentace vlivu komorbidit faktorĹŻ ĹživotnĂho stylu na vĂ˝sledky v souboru pacientĹŻ ...
Let KpX1, . . . , Xnq and HpXn|Xn ́1, . . . , X1q denote the Kolmogorov complexity and Shannon’s entropy rate of a stationary and ergodic process tXiui“ ́8. It has been proved that KpX1, . . . , Xnq n ́HpXn|Xn ́1, . . . , X1q Ñ 0, almost surely. This paper studies the convergence rate of this asymptotic result. In particular, we show that if the process satisfies certain mixing conditions, then the...
O cânone literĂĄrio brasileiro ignorou por mais de um sĂŠculo o nome Maria Firmina dos Reis, a primeira mulher negra escrever romance abolicionista no Brasil, ainda em plena ordem escravocrata: Ărsula (1859). Reis tambĂŠm foi autora contos e poesias do Gupeva (1861-1862). Ademais, destacou-se como uma intelectual que desafiava patriarcal, tendo trabalhado âmbito magistĂŠrio com ideias inovad...
Ăvod: ZĂĄkladem lĂŠÄby sarkomĹŻ mÄkkĂ˝ch tkĂĄnĂ je chirurgickĂ˝ vĂ˝kon, v indikovanĂ˝ch pĹĂpadech nĂĄsledovanĂ˝ pooperaÄnĂ radioterapiĂ. PatologickĂĄ fraktura vzniklĂĄ jako pozdnĂ toxicita radioterapie, zejmĂŠna oblasti dolnĂch konÄetin, ovlivĹuje velmi vĂ˝znamnÄ kvalitu Ĺživota pacienta. CĂlem sdÄlenĂ analĂ˝za Äetnosti vĂ˝skytu patologickĂ˝ch fraktur u pacientĹŻ lĂŠÄenĂ˝ch a...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید