Results 81 to 90 of about 75,506 (290)

Retinol-induced changes in the phosphorylation levels of histones and high mobility group proteins from Sertoli cells

Brazilian Journal of Medical and Biological Research, 2000
Chromatin proteins play a role in the organization and functions of DNA. Covalent modifications of nuclear proteins modulate their interactions with DNA sequences and are probably one of the multiple factors involved in the process of switch on/off ...
J.C.F. Moreira, F. Dal-Pizzol, A.B. Rocha, F. Klamt, N.C. Ribeiro, C.J.S. Ferreira, E.A. Bernard   +6 more
doaj   +1 more source

Timing resolution of a plastic scintillator counter read out by radiation damaged SiPMs connected in series [PDF]

arXiv, 2020
This paper discusses the effects of radiation damage to SiPMs on the performances of plastic scintillator counters with series-connected SiPM readout, focusing on timing measurements. The performances of a counter composed of a $120 \times 40 \times5~\mathrm{mm}^3$ scintillator tile read out by two sets of six SiPMs from AdvanSiD connected in series ...
arxiv  

Determination of 90Sr in water by direct measurement using liquid scintillation counter

Âderna Fìzika ta Energetika, 2015
Results of research showing the possibility of direct measurements of 90Sr on liquid scintillation spectrometer using registration of the Cherenkov luminescence and radiation in scintillation cocktail on a series of water samples, collected on territory ...
G. V. Laptev, L. S. Pirnach, T. I. Dyvak   +2 more
doaj  

Cosmic Ray Helium Flux during the Period 1970-1972

Antarctic Record, 1974
Cosmic ray helium flux at the energy around 100 MeV/N was measured by four balloon flights in the summer during the period from 1970 to 1972 at Syowa Station, Antarctica, with the aid of scintillation counter telescopes.
Eiji TAMAI, Takasuke SAKAI, Nobuo NARITA, Koichi OGURA, Shinichi KOGAMI   +4 more
doaj   +1 more source

Surface Characterization of Scintillator‐Adsorbed Polyethylene Terephthalate Film and Its Use for Detecting α$$ \upalpha $$‐ and β$$ \upbeta $$‐Particles

Journal of Applied Polymer Science, EarlyView.
Thermal transfer using the high‐temperature crimping method led to the bonding of cellulose fibers and a scintillator to the film surface. β‐Particles of tritiated water were detected by immersing the scintillator‐adsorbed film. Scintillation images of the scintillator‐adsorbed film were obtained by irradiating β‐particles from 90Sr/90Y and α‐particles
Hirokazu Miyoshi, Ayumi Fukuhara, Mami Nakamura   +2 more
wiley   +1 more source

Optimization of Measurement Condition for Determination of Tritium in Air by Liquid Scintillation Counting

Yuanzineng kexue jishu, 2023
During the operation of the reactor, a large amount of tritium is released into the surrounding air through the waste gas treatment system and the plant ventilation system.
DONG Chuanjiang;GOU Jiayuan;PU Xianen;TANG Mengqi;WU Yao;WANG Yajie;WANG Lufeng;CHEN Lingzhu;LI Wanhao;LI Junjie;GAO Jing
doaj  

Assessment of Radon Concentration in some Selected Water Sources at Kiyawa Town, Kiyawa, Jigawa State, Nigeria [PDF]

Physics Access
In this study, an assessment of Radon concentration in some selected water sources from Kiyawa town, Kiyawa local Government area, Jigawa state, Nigeria was conducted.
Haruna Y Shuaibu, Yusuf Shuaibu, Umar M Dankawu, Ali Yakubu, Yakubu Mohammed, Abdulhaqq A Olaide, Sabo Isyaku, Gaima K D Adamu, Usman M Ibrahim, Musa Ahmadu, Aminu Maitama, Muhammad I Bukar   +11 more
doaj   +1 more source

Simulation of Scintillator Counters with Embedded Wavelength-Shifting Fibers [PDF]

arXiv, 2019
We describe a complete end-to-end simulation of the response of scintillator counters to charged particles. The counters were extruded with a titanium dioxide surface coating and two channels for the embedded wavelength-shifting fibers which are read out by silicon photomultipliers.
arxiv  

Oral paltusotine, a nonpeptide selective somatostatin receptor 2 agonist: Mass balance, absolute bioavailability and metabolism in healthy participants

British Journal of Clinical Pharmacology, EarlyView.
Abstract Aims Paltusotine is a novel, nonpeptide, selective somatostatin receptor 2 agonist in development for the treatment of acromegaly and carcinoid syndrome. This study investigated the mass balance, routes of excretion, absolute bioavailability and metabolite profile of orally administered paltusotine.
Rosa Luo, Ajay Madan, Christine T. Ferrara‐Cook, Deepak Dalvie, Lance Goulet, R. Scott Struthers, Alan S. Krasner   +6 more
wiley   +1 more source

Scintillation counter for simultaneous assay of H3 and C14 in gas-liquid chromatographic vapors*

Journal of Lipid Research, 1962
An instrument for the assay of H3 and of C14 in gas-liquid chromatographic effluents is described. The radioactive analysis is practically simultaneous with the mass-analysis.
G. PopjáK, A.E. Lowe, D. Moore
doaj