نتایج جستجو برای: somatic polyembryogenesis

تعداد نتایج: 42867  

Journal: :Journal of dairy science 2017
Jason A Troendle Loren W Tauer Yrjo T Gröhn

High somatic cell count in milk leads to reduced shelf life in fluid milk and lower processed yields in manufactured dairy products. As a result, farmers are often penalized for high bulk tank somatic cell count or paid a premium for low bulk tank somatic cell count. Many countries also require all milk from a farm to be lower than a specified regulated somatic cell count. Thus, farms often cul...

Journal: :Social science & medicine 2006
Francine C Jellesma Carolien Rieffe Mark Meerum Terwogt C M Frank Kneepkens

In this study, we compared several aspects of the emotional functioning of schoolchildren reporting very few somatic complaints (n=59), schoolchildren reporting many somatic complaints (n=61), and a clinical group of children with functional abdominal complaints who visited the outpatient clinical of the VU University Medical Centre in Amsterdam (n=33). The children had an average age of 10.6 y...

Journal: :The Journal of Biophysical and Biochemical Cytology 1955
Virgil L. Koenig J. D. Perrings

Sedimentation constants at infinite dilution have been found to be 1.89 and 4.06 for the somatic and capsular polysaccharides, respectively, from pneumococcus Type III. Intrinsic viscosities have been determined for the somatic and capsular polysaccharides of pneumococcus Type III using the Ostwald viscometer. Molecular weights and dimensions have been calculated for the somatic and capsular po...

Journal: :Current Biology 2014
Steven A. Frank

The large number of cell divisions required to make a human body inevitably leads to the accumulation of somatic mutations. Such mutations cause individuals to be somatic mosaics. Recent advances in genomic technology now allow measurement of somatic diversity. Initial studies confirmed the expected high levels of somatic mutations within individuals. Going forward, the big questions concern th...

Journal: :Journal of dairy science 1992
P J Boettcher L B Hansen P M VanRaden C A Ernst

Lactational means of somatic cell score from sample days of primiparous DHI cows were analyzed to compare dairy records processing centers for data properties, to examine effects of age at calving and month of calving on somatic cell score, and to calculate preliminary PTA of sires for somatic cell scores. Five processing centers contributed data but differed substantially with respect to avail...

Journal: :Journal of immunology 1999
C R Winstead S K Zhai P Sethupathi K L Knight

During T cell-dependent immune responses in mouse and human, Ig genes diversify by somatic hypermutation within germinal centers. Rabbits, in addition to using somatic hypermutation to diversify their IgH genes, use a somatic gene conversion-like mechanism, which involves homologous recombination between upstream VH gene segments and the rearranged VDJ genes. Somatic gene conversion and somatic...

2016
Raphael Adu-Gyamfi Andy Wetten Carlos Marcelino Rodríguez López

UNLABELLED While cocoa plants regenerated from cryopreserved somatic embryos can demonstrate high levels of phenotypic variability, little is known about the sources of the observed variability. Previous studies have shown that the encapsulation-dehydration cryopreservation methodology imposes no significant extra mutational load since embryos carrying high levels of genetic variability are sel...

Journal: :Child psychiatry and human development 2008
Alicia A Hughes Brittany Lourea-Waddell Philip C Kendall

The present study aimed to examine somatic complaints in children with anxiety disorders compared to non-anxious control children and whether somatic complaints predict poorer academic performance. The sample consisted of 108 children and adolescents (aged 8-14 years) assessed by a structured diagnostic interview: 69 with a principal (i.e., most severe and/or interfering) anxiety disorder diagn...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Collin J Tokheim Nickolas Papadopoulos Kenneth W Kinzler Bert Vogelstein Rachel Karchin

Sequencing has identified millions of somatic mutations in human cancers, but distinguishing cancer driver genes remains a major challenge. Numerous methods have been developed to identify driver genes, but evaluation of the performance of these methods is hindered by the lack of a gold standard, that is, bona fide driver gene mutations. Here, we establish an evaluation framework that can be ap...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Patrick Koenig Chingwei V Lee Benjamin T Walters Vasantharajan Janakiraman Jeremy Stinson Thomas W Patapoff Germaine Fuh

Somatic mutations within the antibody variable domains are critical to the immense capacity of the immune repertoire. Here, via a deep mutational scan, we dissect how mutations at all positions of the variable domains of a high-affinity anti-VEGF antibody G6.31 impact its antigen-binding function. The resulting mutational landscape demonstrates that large portions of antibody variable domain po...

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