نتایج جستجو برای: degradation indicators
تعداد نتایج: 258369 فیلتر نتایج به سال:
The metabolite 3-deoxyglucosone (3-DG) is formed by carbohydrate caramelisation or the Maillard reaction. 3-DG a precursor in Strecker reaction forming beer ageing compounds, such as 2-methylbutanal 3-methylbutanal. Although known intermediate, recent studies have focused on beer. Foremost, thermal load during wort boiling provides best conditions for formation and degradation, however, reactiv...
A number of scientific methodologies have been used in assessing land degradation globally. However, the use of local knowledge in eliciting indicators of land degradation has seen little application by scientists and policy makers. Researchers believe the two approaches could complement each other to provide a holistic assessment of land degradation. The objective of the study was to find out ...
(Macro)autophagy delivers cellular constituents to lysosomes for degradation. Although a cytoplasmic process, autophagy-deficient cells accumulate genomic damage, but an explanation for this effect is currently unclear. We report here that inhibition of autophagy causes elevated proteasomal activity leading to enhanced degradation of checkpoint kinase 1 (Chk1), a pivotal factor for the error-fr...
Desert ecosystems spanning moisture conditions from dry grasslands to barren hyper-arid landscapes are the largest terrestrial biome with more than 40% of the terrestrial landmass. Remote sensing data provide an efficient costeffective means to assess biophysical indicators of land degradation and desertification, providing that essential ecosystem properties can be monitored. We review the spe...
OBJECTIVE To assess the relative importance of fasting and postprandial hyperglycemia to vascular dysfunction in diabetes, we have measured indicators of glycation, oxidative and nitrosative stress in subjects with type 1 diabetes, and different postprandial glucose patterns. RESEARCH DESIGN AND METHODS Plasma and urinary levels of specific arginine- and lysine-derived advanced glycation end ...
In this work, we analyze several quality measures for speaker verification from the point of view of their utility, i.e., their ability to predict performance in an authentication task. We select several quality measures derived from classic indicators of speech degradation, namely ITU P.563 estimator of subjective quality, signal to noise ratio and kurtosis of linear predictive coefficients. M...
Fractional covers of photosynthetic and non-photosynthetic vegetation are key indicators for land degradation surveillance in the dryland of China. However, there are no available, well validated, and multispectral-based products. Aiming for this, we selected the Beijing and Tianjin Sandstorm Source Region as the study area, and utilized the linear spectral mixture model for generating the frac...
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