Results 1 to 10 of about 558,933 (248)
Attenuation by Targeting the B- and T-Cell Attenuator [PDF]
Transplantation, 2011 BTLA is a member of the immunoglobulin family thought to serve as a negative costimulatory molecule on activated T cells. Several recent studies, including the one published in this issue by del Rio and colleagues, have used BTLA-deficient mice and/or anti-BTLA antibodies to investigate the role of BTLA in regulating graft versus host reaction (GvHR ...
Yang Xin Fu, Maria-Luisa Alegre
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Light attenuation coefficient of polarization attenuator at high attenuation level
Acta Physica Sinica, 2010 By use of the Jones vector we deduced the Jones matrix of actual polarizer and light transmission expression, as well as the light attenuation coefficient （LAC） of two polarizers. According to computation, certain error exists when using Malus-Law to calculate polarizer’s light attenuation ratio at high attenuation level.
Chen Hai-Qing +3 more
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Attenuation of Vaccinia Virus [PDF]
Acta Naturae, 2015 Since 1980, in the post-smallpox vaccination era the human population has become increasingly susceptible compared to a generation ago to not only the variola (smallpox) virus, but also other zoonotic orthopoxviruses. The need for safer vaccines against orthopoxviruses is even greater now.
YAKUBITSKIY S.N. +3 more
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1985 IEEE International Symposium on Electromagnetic Compatibility, 1985 Site attenuation is a measure of performance of an open test site at frequencies below about 1 GHz. These sites typically consist of a large obstruction-free ground plane and the hemisphere above it. Calculations of site attenuation are presented which provide a reference for measurements made on a 30-by 60-m wire-mesh ground screen.
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Attenuation correction in SPECT without attenuation map [PDF]
2011 IEEE Nuclear Science Symposium Conference Record, 2011 A method of attenuation correction in Single Photon Emission Computed Tomography (SPECT), based on emission data only is presented. The algorithm uses the well known Helgason-Ludwig consistency conditions. However, it does not attempt to find the attenuation map, but rather the correction factors for the projection data, which makes the problem simpler
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Attenuated Psychosis Syndrome [PDF]
Indian Journal of Psychological Medicine, 2014 Byline: M. Reddy Diagnostic and Statistical Manual of Mental Disorders, 5 [sup]th edition (DSM - 5) included attenuated psychosis syndrome (APS) in Section III under "conditions for further study". The DSM - 5 task force determined that there was insufficient evidence to warrant inclusion of APS as official mental disorder diagnosis in Section II. "The
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Combination attenuation offers strategy for live-attenuated coronavirus vaccines [PDF]
Journal of Virology, 2018 AbstractWith an ongoing threat posed by circulating zoonotic strains, new strategies are required to prepare for the next emergent coronavirus (CoV). Previously, groups had targeted conserved coronavirus proteins as a strategy to generate live-attenuated vaccine strains against current and future CoVs.
Ralph S. Baric +10 more
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Journal of Combinatorial Theory, Series A, 1993 The rank \(d\) geometries satisfying the Intersection Property and with the following diagram are classified when \(s>3\) and \(d \geq 4\): \[ {\underset{s-1}\circ} {\overset{Af}{\text{---}}} {\underset{s}\circ} {\text{---}} {\underset{s}\circ} \cdots {\underset{s}\circ} {\overset{N^*}{\text{---}}} {\underset{t}\circ} . \]
DEL FRA A., GHINELLI D., PASINI, ANTONIO
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, 2017 AbstractWe will capitalize on our understanding of thermoviscous loss to develop an understanding of the attenuation of sound waves in fluids that are not influenced by proximity to solid surfaces. Such dissipation mechanisms are particularly important at very high frequencies and short distances (for ultrasound) or very low frequencies over geological
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