Results 281 to 290 of about 10,327,060 (336)
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Efficiency of Ion Transport in Biological Systems
Nature, 1957THE idea that active ion transport is linked directly to an electron-transferring respiratory system was first expressed clearly by Stiehler and Flexner1 and has since been elaborated by other investigators2,3. On the basis of this hypothesis, the maximum value of the ratio (ion pairs transported/oxygen consumed) = 4 4,5, since four electrons are ...
J F, SUTCLIFFE, D P, HACKETT
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Human Physiology, 2001
Biological age (BA) and mental efficiency (ME) were studied in truck drivers. The study demonstrated the features of the systemic organization of the functions that determine ME depending on the age and length of service. Premature age-related changes in psychophysiological indices were just “risk indicators” in truck drivers.
A. S. Bashkireva, V. Kh. Khavinson
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Biological age (BA) and mental efficiency (ME) were studied in truck drivers. The study demonstrated the features of the systemic organization of the functions that determine ME depending on the age and length of service. Premature age-related changes in psychophysiological indices were just “risk indicators” in truck drivers.
A. S. Bashkireva, V. Kh. Khavinson
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Efficient and rapid solubilization of biological material
Analytical Biochemistry, 1970Abstract Solid animal tissue can be rapidly solubilized with BBS-2 and counted by liquid scintillation spectrometry with excellent efficiencies reported for weak beta emitters. A more prolonged, tedious, and costly process is involved with the solubilization of solid tissue with NCS reagent, although large samples may be accommodated by this reagent ...
A, Stevens +3 more
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Journal of Controlled Release, 2022
Exosomes are nanovesicles with different contents that play a role in various biological and pathological processes. It offers significant advantages over other delivery systems such as liposomes and polymeric nanoparticles.
Ilgin Kimiz-Gebologlu, S. Oncel
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Exosomes are nanovesicles with different contents that play a role in various biological and pathological processes. It offers significant advantages over other delivery systems such as liposomes and polymeric nanoparticles.
Ilgin Kimiz-Gebologlu, S. Oncel
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An efficient compressor for biological sequences
2013 3rd IEEE International Advance Computing Conference (IACC), 2013This paper introduces a state of art compressor for DNA sequences that makes use of a replacement method. The replacement method introduces words and a word based compression scheme is used for encoding. The encoder uses frequency distribution for assigning the code of words. The designed statistical compression algorithm is efficient and effective for
A. Gupta, K. K. Dubey
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Biologically inspired highly efficient buoyancy engine
SPIE Proceedings, 2012Undersea distributed networked sensor systems require a miniaturization of platforms and a means of both spatial and temporal persistence. One aspect of this system is the necessity to modulate sensor depth for optimal positioning and station-keeping.
Barbar Akle +4 more
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Efficient Updating of Biological Sequence Analyses
IEEE Journal of Selected Topics in Signal Processing, 2008We present a novel approach for reducing the computational complexity of updating homologies produced by a wide class of popular state-of-the-art algorithms in comparative computational biology. The algorithms that we consider use hidden Markov models (HMMs) and a Viterbi recursion to evaluate matches between sequences, or between a sequence and models.
Changjin Hong, Ahmed H. Tewfik
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Advanced Functional Materials, 2018
Enhancing solar energy conversion is imperative and maximizing solar energy capture remains significant. Here, nanotechnology toward engineering hybrid photosystem involving biological photosynthetic chloroplasts and dual‐emissive carbon dots (CDs) is ...
Wei Li +9 more
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Enhancing solar energy conversion is imperative and maximizing solar energy capture remains significant. Here, nanotechnology toward engineering hybrid photosystem involving biological photosynthetic chloroplasts and dual‐emissive carbon dots (CDs) is ...
Wei Li +9 more
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Biological decomposition efficiency in different woodland soils
Oecologia, 1983The decomposition (meaning disappearance) of different leaf types and artificial leaves made from cellulose hydrate foil was studied in three forests - an alluvial forest (Ulmetum), a beech forest on limestone soil (Melico-Fagetum), and a spruce forest in soil overlying limestone bedrock.Fine, medium, and coarse mesh litter bags of special design were ...
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Microplastic Ingestion by Gelatinous Zooplankton May Lower Efficiency of the Biological Pump.
Environmental Science and Technology, 2019The impacts of microplastics on some individual organisms have been well studied but what is less clear is what impacts microplastics have on wider ecosystem processes.
Alina M Wieczorek +4 more
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