Results 41 to 50 of about 13,641 (276)

Content of the technogenic radionuclides accumulation in small mammals from the exclusion zone of Chornobyl in remote period after the accident [PDF]

open access: yesЯдерна фізика та енергетика, 2011
The data of the researches of radioactive contamination territory and the levels of the radionuclides’ accumulation in the body of the small rodents from the exclusion zone of Chornobyl are presented in this work.
A. I. Lypska   +4 more
doaj  

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Annihilation of positrons, emitted at β+-decay with electrons of the daughter's atom [PDF]

open access: yesЯдерна фізика та енергетика, 2010
The processes of photon creation or atom ionization during annihilation of positron with other electron of daughter’s atom at β+-decay are considered.
S. M. Fedotkin
doaj  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Correlation motion of the autoionization electron with positron at β+-decay

open access: yesЯдерна фізика та енергетика, 2016
Correlation study of the "shake-off" electron (as accompanying particle) with positron (as a main particle) has been performed for 152Eu decay with installation to measure double, triple, fourth γ-quanta coincidences with β±-particles, electrons and with
М. F. Mitrokhovich
doaj  

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Excessive lifetime cancer risk and natural radioactivity measurements of granite and sedimentary rock samples

open access: yesЯдерна фізика та енергетика, 2017
Eighteen samples of sediments collected from Um Bogma, South Western Sinai, and twelve granite samples collected from Gabal Gattar, North Eastern Desert in Egypt have been investigated. Concentrations of radionuclides in sediment and granite samples were
E. S. Abd El-Halim   +5 more
doaj  

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Dynamics of physico-chemical forms of radionuclides in the bottom sediments of cooling pond of the ChNPP after their drying: 1. Model experiment

open access: yesЯдерна фізика та енергетика, 2017
Dynamics of the forms of radionuclides in the bottom sediments of cooling pond of the ChNPP after their drying and exposure in full-scale conditions has been estimated by the method of successive leaching.
V. P. Protsak   +5 more
doaj  

Fission fragments mass distributions in 238U+p interaction at energies up to 70 MeV [PDF]

open access: yesЯдерна фізика та енергетика, 2006
Mass distributions of fission fragments in 238U+p interaction at proton energies 35, 50, and 70 MeV were measured using γ-spectrometer method. Yields of fission fragments show fine structure which can be caused by peculiarities of the fissioning ...
Yu. V. Kibkalo   +4 more
doaj  

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