نتایج جستجو برای: مدل arx

تعداد نتایج: 120915  

2017
Glenn De Witte Tomer Ashur Yunwen Liu

In ARX structures, constants that are not rotational invariant are often injected into the state, in the form of round constants or as a result of using a fixed key. Rotational cryptanalysis cannot deal with such constants. Rotational cryptanalysis in the presence of constants, also known as rotational-XOR cryptanalysis, is a recently proposed statistical technique to attack ARX primitives. The...

2017
Nannan Yu Lingling Wu Dexuan Zou Ying Chen Hanbing Lu

In this paper, we propose a novel method for solving the single-trial evoked potential (EP) estimation problem. In this method, the single-trial EP is considered as a complex containing many components, which may originate from different functional brain sites; these components can be distinguished according to their respective latencies and amplitudes and are extracted simultaneously by multip...

2005
R. Scott Heller Marjorie Jenny Patrick Collombat Ahmed Mansouri Catherine Tomasetto Ole D. Madsen Georg Mellitzer Gerard Gradwohl Palle Serup

Recently, the expression of the peptide hormone ghrelin was detected in a-cells of the islets of Langerhans as well as in q-cells, a newly discovered endocrine cell type, but it remains unclear how the latter is related in lineage to the four classical islet cell types, a-, h-, y-, and PPcells. Here, we provide further evidence that ghrelin is predominantly produced in the a-cells of mouse isle...

Journal: :Medicina oral, patologia oral y cirugia bucal 2008
Miguel Peñarrocha Diago Bárbara Ortega Sánchez Berta García Mira Eva Martí Bowen Thomas von Arx Cosme Gay Escoda

INTRODUCTION In periapical surgery, the absence of standardization between different studies makes it difficult to compare the outcomes. OBJECTIVE To compare the healing classification of different authors and evaluate the prognostic criteria of periapical surgery at 12 months. MATERIAL AND METHODS 278 patients (101 men and 177 women) with a mean age of 38.1 years (range 11 to 77) treated w...

2016
Kai Fu Meiqin Wang Yinghua Guo Siwei Sun Lei Hu

In recent years, Mixed Integer Linear Programming (MILP) has been successfully applied in searching for differential characteristics and linear approximations in block ciphers and has produced the significant results for some ciphers such as SIMON (a family of lightweight and hardware-optimized block ciphers designed by NSA) etc. However, in the literature, the MILP-based automatic search algor...

2013
Ashleigh E. Schaffer Brandon L. Taylor Jacqueline R. Benthuysen Jingxuan Liu Fabrizio Thorel Weiping Yuan Yang Jiao Klaus H. Kaestner Pedro L. Herrera Mark A. Magnuson Catherine Lee May Maike Sander

All pancreatic endocrine cell types arise from a common endocrine precursor cell population, yet the molecular mechanisms that establish and maintain the unique gene expression programs of each endocrine cell lineage have remained largely elusive. Such knowledge would improve our ability to correctly program or reprogram cells to adopt specific endocrine fates. Here, we show that the transcript...

Journal: :Genesis 2009
Marian Wolanski Farhad Khosrowshahian Lisa E Kelly Heithem M El-Hodiri Michael J Crawford

The aristaless-related gene, Arx, plays a fundamental role in patterning the brain in humans and mice. Arx mutants exhibit lissencephaly among other anomalies. We have cloned a Xenopus aristaless homolog that appears to define specific regions of the developing forebrain. xArx2 is transcribed in blastula through neurula stages, and comes to be restricted to the ventral and lateral telencephalon...

Journal: :The Journal of biological chemistry 2010
Wen Yang Stephen G Bell Hui Wang Weihong Zhou Nicola Hoskins Alison Dale Mark Bartlam Luet-Lok Wong Zihe Rao

Cytochrome P450 (CYP) enzymes of the CYP101 and CYP111 families from the oligotrophic bacterium Novosphingobium aromaticivorans DSM12444 are heme monooxygenases that receive electrons from NADH via Arx, a [2Fe-2S] ferredoxin, and ArR, a ferredoxin reductase. These systems show fast NADH turnovers (k(cat) = 39-91 s(-1)) that are efficiently coupled to product formation. The three-dimensional str...

2002
Hiroyuki Ohsaki Mitsushige Morita Masayuki Murata

Understanding the end-to-end packet delay dynamics of the Internet is of crucial importance since it directly affects the QoS (Quality of Services) of various applications, and it enables us to design an efficient congestion control mechanism. In our previous studies, we have measured round-trip time of the Internet, and have modeled its dynamics by the ARX (Auto-Regressive eXogenous) model usi...

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