Results 101 to 110 of about 155,755 (365)
Dietary restriction extends longevity in organisms ranging from bacteria to mice and protects primates from a variety of diseases, but the contribution of each dietary component to aging is poorly understood. Here we demonstrate that glucose and specific
M. Mirisola+5 more
semanticscholar +1 more source
O‐aminophenol oxidases, a specialized subclass of type‐III copper proteins, play a crucial role in the biosynthesis of bioactive nitrosophenols which display antiretroviral and blood cholesterol lowering activity. Another related subclass of type‐III copper proteins, tyrosinases, closely resemble o‐aminophenol oxidases both structurally and ...
Hoa Le Xuan, Felix Panis, Annette Rompel
wiley +1 more source
Chemical compositions such as protein, fat, ash, moisture, starch, vitamin B1 and mineral, as well as amino acids and fatty acids were determined in kabuli and desi chickpea species. Forty‐six types of flavonoids in Muying‐1 chickpea were analyzed with UPLC‐QqQ‐MS method.
Shiqi Xiao+3 more
wiley +1 more source
Speex: A Free Codec For Free Speech [PDF]
The Speex project has been started in 2002 to address the need for a free, open-source speech codec. Speex is based on the Code Excited Linear Prediction (CELP) algorithm and, unlike the previously existing Vorbis codec, is optimised for transmitting speech for low latency communication over an unreliable packet network. This paper presents an overview
arxiv
A New Robust Frequency Domain Echo Canceller With Closed-Loop Learning Rate Adaptation [PDF]
One of the main difficulties in echo cancellation is the fact that the learning rate needs to vary according to conditions such as double-talk and echo path change. Several methods have been proposed to vary the learning. In this paper we propose a new closed-loop method where the learning rate is proportional to a misalignment parameter, which is in ...
arxiv +1 more source
Valine tRNA levels and availability regulate complex I assembly in leukaemia
Palaniraja Thandapani+11 more
semanticscholar +1 more source
Electrophilically reactive compounds have the ability to form adducts with nucleophilic sites in DNA and proteins, constituting a risk for toxic effects.
Henrik Carlsson+3 more
semanticscholar +1 more source
Ruthenium Catalyzed ortho‐Arylation Reaction of Benzoic Acids with Arylthianthrenium Salts
Arylthianthrenium salts have become key intermediates for late‐stage functionalizations of drug‐like molecules. Ruthenium‐phosphine catalysts are now shown to enable their use as aryl sources in high‐yielding ortho‐C–H arylations of benzoic acids. The arylthianthrenium salts are converted chemo‐selectively, leaving aryl halides and boronates untouched.
Kaiping Wang+9 more
wiley +1 more source
Five obtained peptides exhibited high radical scavenging activities in the following order: F5 > F3 > F1 > F2 > F4.; F5 has the highest activities for DPPH‐IC50 was 21.75 μg/mL, hydroxyl‐IC50 was 18.75 μg/mL, and Superoxide‐IC50 was 11.00 μg/mL and the reducing power was 2.54 OD700.; F5 had the highest antioxidant activity and not only prevented the ...
Hui Huang+9 more
wiley +1 more source
Studies on promoting milk protein yield by supplementation of amino acids have been globally conducted. Nevertheless, there is a lack of knowledge of what pathways affected by individual amino acid in mammary ...
Jungeun Kim+5 more
doaj +1 more source