نتایج جستجو برای: activity quantification

تعداد نتایج: 1209346  

2003

Informal discourse about specific indefinites often employs ideas such as ‘the individual the speaker had in mind’. Although this kind of discourse most often seems to proceed coherently, many semanticists are sceptical about theoretical or formal accounts employing these notions. In this paper, we argue that folk ideas about reference are central to semantics, figuring in the truth conditions ...

Journal: :International Journal of Environmental Research and Public Health 2020

2015
Thorsten Heußer Christopher M Rank Thomas Beyer Marc Kachelrieß

German Cancer Research Center (DKFZ), Heidelberg, Germany Accurate quantification of the activity distribution in positron emission tomography (PET) mandates attenuation correction (AC). Unlike in PET/CT, AC in PET/MR is, however, challenging, since information about the attenuation properties of the patient tissue distribution is not available directly. Standard MR-based AC (MRAC) does not acc...

Journal: :Electr. J. Comb. 2011
Leonard J. Schulman

In a bipartite graph there are two widely encountered monotone mappings from subsets of one side of the graph to subsets of the other side: one corresponds to the quantifier “there exists a neighbor in the subset” and the other to the quantifier “all neighbors are in the subset.” These mappings generate a partially ordered semigroup which we characterize in terms of “run-unimodal” words.

Journal: :Bioorganic & medicinal chemistry letters 2004
Paul F van Swieten Rene Maehr Adrianus M C H van den Nieuwendijk Benedikt M Kessler Michael Reich Chung-Sing Wong Hubert Kalbacher Michiel A Leeuwenburgh Christoph Driessen Gijsbert A van der Marel Hidde L Ploegh Herman S Overkleeft

Quantification studies of complex protein mixtures have been restricted mainly to whole cell extracts. Here we describe the synthesis of two sets of isotope-coded activity-based probes that allow quantitative functional proteomics experiments on the cathepsins.

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