نتایج جستجو برای: tes

تعداد نتایج: 8153  

Journal: :IEICE Transactions 2015
Keisuke Maehata Makoto Maeda Naoko Iyomoto Kenji Ishibashi Keisuke Nakamura Katsunori Aoki Koji Takasaki Kazuhisa Mitsuda Keiichi Tanaka

A four-pixel-array superconducting transition-edge sensor (TES) microcalorimeter with a mushroom-shaped absorber was fabricated for the energy dispersive spectroscopy performed on a transmission electron microscope. The TES consists of a bilayer of Au/Ti with either a 50nm or 120-nm thickness. The absorber of 5.0 μm thick is made from a Au layer and its stem is deposited in the center of the TE...

2017
Shiqi Luo Jian Lu

Transposable elements (TEs) are DNA sequences that can move within the genome. TEs have greatly shaped the genomes, transcriptomes, and proteomes of the host organisms through a variety of mechanisms. However, TEs generally disrupt genes and destabilize the host genomes, which substantially reduce fitness of the host organisms. Understanding the genomic distribution and evolutionary dynamics of...

2017
Robert Horvath Tanja Slotte

To avoid negative effects of transposable element (TE) proliferation, plants epigenetically silence TEs using a number of mechanisms, including RNA-directed DNA methylation. These epigenetic modifications can extend outside the boundaries of TE insertions and lead to silencing of nearby genes, resulting in a trade-off between TE silencing and interference with nearby gene regulation. Therefore,...

Journal: :PLoS Biology 2008
Josefa González Kapa Lenkov Mikhail Lipatov J. Michael Macpherson Dmitri A Petrov

Although transposable elements (TEs) are known to be potent sources of mutation, their contribution to the generation of recent adaptive changes has never been systematically assessed. In this work, we conduct a genome-wide screen for adaptive TE insertions in Drosophila melanogaster that have taken place during or after the spread of this species out of Africa. We determine population frequenc...

Journal: :The Journal of Cell Biology 2003
Boyan K. Garvalov Theresa E. Higgins James D. Sutherland Markus Zettl Niki Scaplehorn Thomas Köcher Eugenia Piddini Gareth Griffiths Michael Way

The function of the human Tes protein, which has extensive similarity to zyxin in both sequence and domain organization, is currently unknown. We now show that Tes is a component of focal adhesions that, when expressed, negatively regulates proliferation of T47D breast carcinoma cells. Coimmunoprecipitations demonstrate that in vivo Tes is complexed with actin, Mena, and vasodilator-stimulated ...

Journal: :Biomedical and environmental sciences : BES 1996
Y M Xiu

Remarkable progress has occurred in many branches of biology and health sciences during the last few decades. Trace element (TE) research has definitely shared in this explosion of scientific knowledge. Due to the improvements in analytical technology, the discovery of TEs in organism was realized. The developments of TE research have been promoted by the demand of public health (e.g. deficienc...

2008
Nigel A. D. Richards Gregory B. Osterman Edward V. Browell Johnathan W. Hair Melody Avery Qinbin Li

[1] The Tropospheric Emission Spectrometer (TES) is an infrared instrument that was launched on board NASA’s Aura satellite in 2004. TES is the first instrument to provide vertical information on tropospheric ozone while simultaneously measuring CO on a global basis. Before they may be used for scientific study, TES profiles must first be validated to determine if there are any systematic biase...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Liya Wei Lianfeng Gu Xianwei Song Xiekui Cui Zhike Lu Ming Zhou Lulu Wang Fengyi Hu Jixian Zhai Blake C Meyers Xiaofeng Cao

Transposable elements (TEs) and repetitive sequences make up over 35% of the rice (Oryza sativa) genome. The host regulates the activity of different TEs by different epigenetic mechanisms, including DNA methylation, histone H3K9 methylation, and histone H3K4 demethylation. TEs can also affect the expression of host genes. For example, miniature inverted repeat TEs (MITEs), dispersed high copy-...

Journal: :Plant physiology 2010
Catherine I Lacayo Alexander J Malkin Hoi-Ying N Holman Liang Chen Shi-You Ding Mona S Hwang Michael P Thelen

The chemical and structural organization of the plant cell wall was examined in Zinnia elegans tracheary elements (TEs), which specialize by developing prominent secondary wall thickenings underlying the primary wall during xylogenesis in vitro. Three imaging platforms were used in conjunction with chemical extraction of wall components to investigate the composition and structure of single Zin...

2008
A. D. Rogers O. Aharonson

[1] Constraints on the mineralogical composition of low-albedo, low-sulfur sands at Meridiani Planum are determined from Mars Exploration Rover (MER) Opportunity Miniature Thermal Emission Spectrometer (Mini-TES), Mössbauer, and Alpha Proton X–Ray Spectrometer measurements. Results of this work show that the sand is olivine basaltic in composition, with minor amounts of sulfate and a high-silic...

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