نتایج جستجو برای: crossover model

تعداد نتایج: 2129833  

2004
Bulent Buyukbozkirli Erik D. Goodman

A model of the dynamics of solving the counting-ones (OneMax) problem using a simple genetic algorithm (GA) is developed. It uses statistics of the early generations of GA runs to describe the dynamics of the problem for all time, using a variety of crossover and mutation rates. The model is very practical and can be generalized to cover other cases of the OneMax, such as weighted OneMax, as we...

Journal: :Journal Of Non-crystalline Solids: X 2022

Glass-forming liquids are broadly classified as being fragile or strong, depending on the deviation from Arrhenius behavior of their relaxation times. A to strong crossover is observed inferred in like water and silica, more recently also metallic glasses phase change alloys, leading expectation that such a widely realised among glass formers. We investigate computationally well-studied Kob-And...

2016
He Ren Kyle Ferguson Gordon Kirkpatrick Tanya Vinning Victor Chow Sai Ma

During meiosis, homologous chromosomes pair to facilitate the exchange of DNA at crossover sites along the chromosomes. The frequency and distribution of crossover formation are tightly regulated to ensure the proper progression of meiosis. Using immunofluorescence techniques, our group and others have studied the meiotic proteins in spermatocytes of infertile men, showing that this population ...

Journal: :Journal of High Energy Physics 2023

We study the crossover phase transition of SU(2) Georgi-Glashow model in three dimensions. In this model, a confining condensate topological 't Hooft-Polyakov monopoles exists Higgs regime. use lattice Monte Carlo simulations to monopole gas across transition, and demonstrate that gradient flow can be used renormalize otherwise divergent number density. The condensation means theory admits also...

Journal: :Current Biology 2005
Gregory P. Copenhaver

New evidence suggests that the model plant Arabidopsis has two biochemically distinct pathways that produce genetic crossovers. Studies in several organisms have revealed that one kind of crossover regulation - crossover interference - is applied differently from species to species. Arabidopsis appears to use an interference system similar to that of budding yeast.

2006
A. Gynther M. Vepsäläinen

We extend our previous determination of the thermodynamic pressure of the Standard Model so that the result can be applied down to temperatures corresponding to the electroweak crossover. This requires a further resummation which can be cleanly organised within the effective theory framework. The result allows for a precise determination of the expansion rate of the Universe for temperatures ar...

1997
H P Shanahan

The electroweak phase structure and baryon number violation for large Higgs mass. The classical transitions between topologically distinct vacua in a SU (2)–Higgs model, using a Higgs field of mass approximately 120 GeV, is examined to probe the crossover region between the symmetric and broken phase. For the volumes used, this crossover is approximately 10 GeV wide.

2008
Hiroaki Abuki

The possibility of the crossover from the BCS pairing to the Bose-Einstein condensate (BEC) of diquarks with going down in density is discussed in the framework of in the Nambu Jona-Lasinio (NJL) model. We find that the quark matter at moderate density may be close to the intermediate of the crossover, the precursory regime to the BEC phase.

سخن سردبیر Editorial مجله دانشگاه علوم پزشکی رفسنجان دوره هجدهم، شهریور 1398، 513-514     مطالعات مورد – همگذری (Case Crossover Studies)   محسن رضائیان[1]   M. Rezaeian   مطالعات مورد - همگذری (Case Crossover Studies) به ویژه برای مشخص کردن تأثیر زودگذر مواجهه بر روی رخداد یک بیماری حاد، مناسب است. در این طراحی، به جای آن‌که یک گروه مجزا برای کنترل انتخاب  شود، هر مورد در نقش کنترل ...

2005
A. Gynther M. Vepsäläinen

We extend our previous determination of the thermodynamic pressure of the Standard Model so that the result can be applied down to temperatures corresponding to the electroweak crossover. This requires a further resummation which can be cleanly organised within the effective theory framework. The result allows for a precise determination of the expansion rate of the Universe for temperatures ar...

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