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Archives of Microbiology, 1975
A coupling factor necessary for the photophosphorylation and Mg2+-ATPase activities in Rhodospirillum rubrum chromatophores has been separated from these particles. Although the redox potential of coupling factor deficient chromatophores is slightly more oxidized than of the control, the addition of the coupling factor for reconstitution does not alter
U N, Pfluger +3 more
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A coupling factor necessary for the photophosphorylation and Mg2+-ATPase activities in Rhodospirillum rubrum chromatophores has been separated from these particles. Although the redox potential of coupling factor deficient chromatophores is slightly more oxidized than of the control, the addition of the coupling factor for reconstitution does not alter
U N, Pfluger +3 more
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Coupled graph tensor factorization
2016 50th Asilomar Conference on Signals, Systems and Computers, 2016Factorization of a single matrix or tensor has been used widely to reveal interpretable factors or predict missing data. However, in many cases side information may be available, such as social network activities and user demographic data together with Netflix data.
Ahmed S. Zamzam +2 more
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Coupled Collective Matrix Factorization
2018 IEEE SmartWorld, Ubiquitous Intelligence & Computing, Advanced & Trusted Computing, Scalable Computing & Communications, Cloud & Big Data Computing, Internet of People and Smart City Innovation (SmartWorld/SCALCOM/UIC/ATC/CBDCom/IOP/SCI), 2018Collective Matrix Factorization (CMF) makes rating prediction by jointly factorizing multiple matrices in recommender systems (RS), which also provides a unified view of matrix factorization. However, CMF does not directly involve the user attributes and item attributes that represent the intrinsic characteristics of users and items, so it fails to ...
Liying Zhang +5 more
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A new coupling factor for photophosphorylation
Biochemical and Biophysical Research Communications, 1968Abstract Several coupling factors have been isolated from mitochondria ( Racker, 1967 ) which are required for oxidative phosphorylation in resolved submitochondrial particles. Phosphorylation in chloroplasts, like that in mitochondria, can be resolved and reconstituted ( Avron, 1963 ; Vambutas and Racker, 1965 ), however, only one coupling factor ...
A, Livne, E, Racker
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Structural organization of chloroplast coupling factor
Biochemistry, 1985Fluorescence resonance energy transfer measurements have been used to construct spatial maps for the accessible sulfhydryl of the gamma subunit (dark site) and the essential tyrosine residue of the beta subunits relative to previously mapped sites on the H+-ATPase from chloroplasts.
B, Snyder, G G, Hammes
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Coupling factors ATPases from photosynthetic bacteria
Journal of Bioenergetics, 1976Considerable information on the mechanism of ATP synthesis in energy transducing membranes has been obtained by studies concerning the detachment of the membrane bound ATPase and its reconstitution from purified membrane components. Although the first successful utilization of such an approach was described for the respiratory system of an aerobic ...
B A, Melandri, A B, Melandri
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2015
Abstract This chapter provides many relationships for the effective calculation of coupling loss factors. All cases of interest are reviewed: point-connected subsystems, line-connected subsystems, and area-connected subsystems. The importance of transmission efficiency is highlighted.
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Abstract This chapter provides many relationships for the effective calculation of coupling loss factors. All cases of interest are reviewed: point-connected subsystems, line-connected subsystems, and area-connected subsystems. The importance of transmission efficiency is highlighted.
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On coupling factors of oxidative phosphorylation
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1968Abstract 1. The isolation of three ATPase preparations from beef-heart mitochondria is described. One of these (F 1 -X) is soluble, oligomycin insensitive, cold labile and has a high coupling activity. The second is insoluble, oligomycin sensitive, cold stable and without coupling activity.
R H, Vallejos +2 more
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1977
The transfer of energy from the initial high energy state, that is produced by electron transport in chloroplasts, involves the activity of coupling factors. Recent studies suggest that an intact vesicular membrane is required for the energy conserving action to proceed (for a comprehensive review, see Jagendorf, 1975, and this vol. Chap. III.1). Thus,
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The transfer of energy from the initial high energy state, that is produced by electron transport in chloroplasts, involves the activity of coupling factors. Recent studies suggest that an intact vesicular membrane is required for the energy conserving action to proceed (for a comprehensive review, see Jagendorf, 1975, and this vol. Chap. III.1). Thus,
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Male Factors in Couple’s Infertility
2014The main causes of male infertility are testicular insufficiency due to congenital and acquired causes, obstructions of the male genital tract, genetic and endocrine abnormalities, urogenital infections and varicoceles. Also lifestyle can have a negative influence on semen quality: smoking, obesity, drugs and anabolic steroids influence sperm ...
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