Results 71 to 80 of about 467,308 (290)

A Study of the Scintillation Induced by Alpha Particles and Gamma Rays in Liquid Xenon in an Electric Field

, 2005
Scintillation produced in liquid xenon by alpha particles and gamma rays has been studied as a function of applied electric field. For back scattered gamma rays with energy of about 200 keV, the number of scintillation photons was found to decrease by 64+
A. Bewick, A.S. Howard, Akimov, Barabanov, Cline, Conti, D. Akimov, D. Shaul, D.C.R. Davidge, Doke, G. Rochester, H. Araujo, Hitachi, I. Liubarsky, J.J. Quenby, J.V. Dawson, Jaffe, Kubota, Kubota, M. Joshi, R.J. Walker, Schwentner, T.J. Sumner, V.N. Lebedenko, Voronova, W.G. Jones   +25 more
core   +2 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Resistive wall mode and fishbone mode in ITER steady state scenario: roles of fusion-born alphas and plasma flow

Nuclear Fusion
Drift-kinetic effects of fusion-born alpha particles on the n = 1 ( n is the toroidal mode number) resistive wall mode (RWM) is numerically investigated for a recent design of the ITER 10 MA steady state plasma scenario, utilizing a magneto-hydrodynamic (
Hongda He, Yueqiang Liu, Guangzhou Hao, Jinxia Zhu, Yong Shen, Guoyao Zheng   +5 more
doaj   +1 more source

Investigating the role of alpha particles in gene expression levels of cytokines in rats infected with cystic echinococcosis [PDF]

Iraqi Journal of Veterinary Sciences
Hydatidosis is a widespread parasitic disease caused by larval stage protoscoleces of Echinococcus granulosus. The present study investigated the effect of protoscoleces after exposure to alpha particles on the expression of immune response-related genes
Suhyla Y. Yousif, Omaima A. Najm, Yasir Y. Kassim   +2 more
doaj   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Calculation of the Electronic Parameters of an Al/DNA/p-Si Schottky Barrier Diode Influenced by Alpha Radiation

Sensors, 2015
Many types of materials such as inorganic semiconductors have been employed as detectors for nuclear radiation, the importance of which has increased significantly due to recent nuclear catastrophes. Despite the many advantages of this type of materials,
Hassan Maktuff Jaber Al-Ta'ii, Yusoff Mohd Amin, Vengadesh Periasamy   +2 more
doaj   +1 more source

Exon 7 splicing of ERα predicts poor prognosis and increases phenotypic heterogeneity in luminal a subtype breast cancer

FEBS Open Bio, EarlyView.
ERα splice variant ERα∆7 lacks the C‐terminus, and its expression may change phenotypes of breast cancers. Our results showed that ERα∆7 is found in the luminal A subtype, and elevated ERα∆7 levels are linked to improved cell survival with lower proliferation and migration.
Long Wai Tsui, Taobo Hu, Thomson Christian Husein, Wai Hei Shek, Bingrong Chen, Depeng Wang, Shu Wang, Weichuan Yu, Xiaodan Fan, Mengping Long, Toyotaka Ishibashi   +10 more
wiley   +1 more source

Search for the second forbidden beta decay of 8B to the ground state of 8Be

, 2007
A significant decay branch of 8B to the ground state of 8Be would extend the solar neutrino spectrum to higher energies than anticipated in the standard solar models.
D. W. Storm, J. D. Walecka, J. D. Walecka, M. K. Bacrania, N. M. Boyd, R. G. H. Robertson, R. R. Whitehead   +6 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Natural radionuclide distribution and radon exhalation rate from the soil in Vilnius city

Journal of Environmental Engineering and Landscape Management, 2007
In the territory of Vilnius city radioisotopic composition of different soils was experimentally determined and radon exhalation rate from the soil was evaluated using these data.
Dainius Jasaitis, Aloyzas Girgždys
doaj   +1 more source