نتایج جستجو برای: teff
تعداد نتایج: 1236 فیلتر نتایج به سال:
BACKGROUND The aim of the study was to achieve an effective target dose in the thyroid by increasing the effective half-life (Teff) of (131)I by use of iodide ((127)I) two days after (131)I therapy in patients with hyperthyroidism with low Teff. MATERIAL AND METHODS The study was carried out in two groups. Group A - 41 patients, and Group B - 14 patients, all the patients were with hyperthyro...
We evaluate the effects that variations in He content have on bolometric corrections and Teff-colour relations. To this aim, we compute ATLAS9 model atmospheres and spectral energy distributions for effective temperatures ranging from 3500 K to 40000 K for dwarfs and from 3500 K to 8000 K for giants, considering both “He-non enhanced” and “He-enhanced” compositions. The considered variations in...
Regulatory T-cells (Tregs) play a pivotal role in maintaining peripheral tolerance. Increasing Treg numbers/functions has been shown to ameliorate autoimmune diseases. However, common Treg expansion approaches use T-Cell Receptor (TCR)-mediated stimulation which also causes proliferation of effector T-cells (Teff). To overcome this limitation, purified patient-specific Tregs are expanded ex viv...
We have assessed how well stellar parameters (Teff , log g and [M/H]) can be retrieved from low-resolution dispersed images to be obtained by the DIVA satellite. Although DIVA is primarily an all-sky astrometric mission, it will also obtain spectrophotometric information for about 13 million stars (operational limiting magnitude V ≃ 13.5 mag). Constructional studies foresee a grating system yie...
BACKGROUND CD25, a component of the IL-2 receptor, is important in T cell proliferation, activation induced cell death, as well as the actions of both regulatory (Treg) and effector (Teff) T cells. Recent genome wide association studies have implicated the CD25 locus as an important region for genetic susceptibility to a number of autoimmune disorders, with serum levels of soluble CD25 receptor...
Context. The discovery of the Spite plateau in the abundances of Li for metal-poor stars led to the determination of an observationally deduced primordial lithium abundance. However, after the success of the Wilkinson Microwave Anisotropy Probe (WMAP) in determining the baryon density, ΩBh , there was a discrepancy between observationally determined and theoretically determined abundances in th...
Global-Scale Observations of Limb and Disk (GOLD) disk measurements far ultraviolet molecular nitrogen band emissions are used to retrieve column integrated temperatures (Tdisk), which representative the lower-and-middle thermosphere. The present work develops a new approach assimilate Tdisk in whole atmosphere community climate model with thermosphere-ionosphere eXtension using data assimilati...
We present spectrophotometry in the 3600–9700 Å region for a sample of 39 H II regions in the Galaxy and Magellanic Clouds, for which independent information is available on the spectral types and effective temperatures of the ionizing stars. The spectra have been used to evaluate nebular diagnostics of stellar temperature, metal abundance, and ionization parameter, and compare the observed beh...
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