نتایج جستجو برای: hereditary stability

تعداد نتایج: 382625  

2003
WAYNE M. GETZ VEIJO KAITALA

We develop a system of equations to analyse the existence of genetic polymorphisms under disruptive selection in heterogeneous environments. These equations have both a genetic and a population density regulation component. In the absence of the genetic component, the equations reduce to a discrete time description of competition between interacting clonal lines or species. We use these equatio...

2017
Parvendra Kumar Sunil Kumar Chaudhary

In this paper, a new approach to stability for fractional order control system is proposed. Here a dynamic system whose behavior can be modeled by means of differential equations involving fractional derivatives. Applying Laplace transforms to such equations, and assuming zero initial conditions, causes transfer functions with no integer powers of the Laplace transform variable s to appear. In ...

2002
Carlos López-Beltrán

Hereditary transmission of bodily (physical) and behavioral (moral) features from parents to offspring became an independent subject of scientific theorizing only in the mid-decades of the nineteenth century. Only then did it become clear that the questions around the stability of species and the question about the contingent similarities responsible for family resemblance were tightly intermin...

Ali Fasihi Maryam Godarziyan Morteza Hashemzadeh-Chaleshtori Shahin Ramazi

Background & Aims: Nearly 30 hereditary disorders in humans result from an increase in the number of copies of simple repeats in genomic DNA, including fragile X syndrome, myotonic dystrophy, Huntington’s disease, and Friedreich’s ataxia. One the most frequently occurring types of mutation is trinucleotide repeat expansion. The present study was conducted with the aim of investigating the cause...

2012
Jia Xu Sha Wang Wei-Jie Zhao Yi-Bo Xi Yong-Bin Yan Ke Yao

β/γ-Crystallins, the major structural proteins in human lens, are highly conserved in their tertiary structures but distinct in the quaternary structures. The N- and C-terminal extensions have been proposed to play a crucial role in mediating the size of β-crystallin assembly. In this research, we investigated the molecular mechanism underlying the congenital hereditary cataract caused by the r...

2011
Wang Zhang Hong-Chen Cai Fei-Feng Li Yi-Bo Xi Xu Ma Yong-Bin Yan

γD-crystallin is one of the major structural proteins in human eye lens. The solubility and stability of γD-crystallin play a crucial role in maintaining the optical properties of the lens during the life span of an individual. Previous study has shown that the inherited mutation G61C results in autosomal dominant congenital cataract. In this research, we studied the effects of the G61C mutatio...

Journal: :Brain : a journal of neurology 2009
Anne Kjersti Erichsen Jeanette Koht Asbjørg Stray-Pedersen Michael Abdelnoor Chantal M E Tallaksen

A population-based, cross-sectional study was performed in southeast Norway, between January 2002 and February 2008, to identify subjects with hereditary ataxia and hereditary spastic paraplegia, and to estimate the prevalence of these disorders. Patients were recruited through colleagues, families, searches in computerized hospital archives and the National Patients' Association for Hereditary...

Journal: :Anais brasileiros de dermatologia 2012
Sergio Duarte Dortas Junior Solange Oliveira Rodrigues Valle Soloni Afra Pires Levy Rosangela P Tortora Augusto Tiaqui Abe Gisele Viana Pires José Angelo de Souza Papi Alfeu Tavares França

Hereditary Angioedema is a dominantly inherited disease. Routine screening of autoantibodies (AAB) is not recommended for individuals with Hereditary Angioedema; however, prevalence of these antibodies in Hereditary Angioedema patients is not well documented. We aim to determine the prevalence of AAB so that individuals at risk of developing autoimmune diseases can be identified. Fifteen patien...

2017

The panel covers genes associated with hereditary colorectal cancer syndromes, familial pancreatic cancer, hereditary diffuse gastric cancer and gastrointestinal stromal tumors. Also other syndromes associated with increased risk of gastrointestinal cancer are covered. The Hereditary Gastrointestinal Cancer Panel is suited for detecting heritable germline mutations and may not be used for the d...

Journal: :Journal of Algebra 2021

We introduce the notions of τ -exceptional and signed sequences for any finite dimensional algebra. prove that a fixed algebra rank n , positive integer t ≤ there is bijection between set length (basic) ordered support -rigid objects with indecomposable direct summands. If hereditary, our coincide exceptional sequences. The latter were recently introduced by Igusa Todorov, who constructed simil...

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