Results 251 to 260 of about 88,639 (304)
Online, Automatic, Near-Real Time Estimation of GPS-TEC: IONOLAB-TEC [PDF]
Space Weather, 2013 The variability of space weather can best be captured using total electron content (TEC), which corresponds to total number of electrons on a ray path. The dual‐frequency ground based GPS receivers provide a cost‐effective means for monitoring TEC. Computation of TEC for a single GPS station is a challenge due to various unknowns and ambiguities such ...
Orhan Arikan, Feza Arıkan, Umut Sezen
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Thymic epithelial cell heterogeneity: TEC by TEC
Nature Reviews Immunology, 2019The generation of a functional T cell repertoire in the thymus is mainly orchestrated by thymic epithelial cells (TECs), which provide developing T cells with cues for their navigation, proliferation, differentiation and survival. The TEC compartment has been segregated historically into two major populations of medullary TECs and cortical TECs, which ...
Noam Kadouri +3 more
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Foxa1 And Foxa2 in Thymic Epithelial Cells (TEC) Regulate Medullary TEC and Regulatory T-Cell Maturation [PDF]
Journal of Autoimmunity, 2018 The Foxa1 and Foxa2 transcription factors are essential for mouse development. Here we show that they are expressed in thymic epithelial cells (TEC) where they regulate TEC development and function, with important consequences for T-cell development. TEC
Ching-In Lau +2 more
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Comparison of global TEC between IRI TEC and GPS TEC in the spring of 2006
2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2017Comparison of the global Total Electron Content (TEC) derived from dual-frequency Global Positioning System (GPS) data and International Reference Ionosphere (IRI) used tomographic models, it has very important significance for IRI upgrading [1]. We investigate the trend of global TEC between IRI TEC and GPS TEC in the spring of 2006.
Xiaolan Wang +5 more
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Global Plasmaspheric TEC and Its Relative Contribution to GPS TEC
Journal of Atmospheric and Solar-Terrestrial Physics, 2008The plasmaspheric electron content is directly estimated from the global positioning system (GPS) data onboard JASON-1 Satellite for the first time. Similarly, the ground-based GPS total electron content (TEC) is estimated using about 1000 GPS receivers distributed around the globe. The relative contribution of the plasmaspheric electron content to the
Endawoke Yizengaw, Attila Komjáthy
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Automatic TEC mapping using a GPS network and GIM-TEC
2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC), 2015Ionosphere is an important layer of atmosphere, extending from 60 km to 1000 km altitude. The primary source of ionization is solar radiation. Yet, various factors from geomagnetic field to atmospheric structure complicate the ionization and recombination processes.
ARIKAN, FEZA +3 more
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Journal of Further and Higher Education, 1978
(1978). Forwards with TEC. Journal of Further and Higher Education: Vol. 2, No. 2, pp. 29-35.
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(1978). Forwards with TEC. Journal of Further and Higher Education: Vol. 2, No. 2, pp. 29-35.
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In this issue: Tec Kinases in the Crosshairs
International Reviews of Immunology, 2012Tec family kinases are the second largest family of non-receptor tyrosine kinases, of critical importance to the biology of cells derived from the bone marrow. Significant progress in this area during the last decade revealed a role for several of these kinases in inflammatory and oncologic disorders.
Mary, Faris, Adrian, Bot
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2023
El Tecnológico de Monterrey presenta, en el marco de su 75 aniversario, un mosaico de historias cuyos protagonistas son sus egresados. Se invita a conocer la autenticidad de sus historias, la frescura de sus anécdotas y la riqueza de sus trayectorias.
Espinosa Leal, Zaira Eliette +2 more
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El Tecnológico de Monterrey presenta, en el marco de su 75 aniversario, un mosaico de historias cuyos protagonistas son sus egresados. Se invita a conocer la autenticidad de sus historias, la frescura de sus anécdotas y la riqueza de sus trayectorias.
Espinosa Leal, Zaira Eliette +2 more
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Education + Training, 1975
This article, contrived last Autumn, is composed entirely of my own prognostications. Although I have since discovered myself a member of two TEC Committees, these had not yet met when the article was completed. The opinions expressed are therefore based on no “inside knowledge”, and no one is responsible for them but me.
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This article, contrived last Autumn, is composed entirely of my own prognostications. Although I have since discovered myself a member of two TEC Committees, these had not yet met when the article was completed. The opinions expressed are therefore based on no “inside knowledge”, and no one is responsible for them but me.
openaire +1 more source