Results 91 to 100 of about 118,484 (324)

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

A European X-ray astrophysics mission [PDF]

Five instruments (Bragg Spectrometer, Large Area Proportional and Scintillation Counter Detectors, Wide Field X-ray Cameras and a Gamma-Ray Burst Monitor) are discussed and estimates of their performance are given.
Culhane, J. L.
core   +1 more source

Study of a Positron Emission Mammograph [PDF]

, 2007
Today breast cancer is among the most common causes of death for women. One in eight women will develop a tumour in her breast at least once in her lifetime. An early detection of the cancer is crucial to the patient's survival and recovery.
Trummer, J
core  

Micromegas operation in high pressure xenon: charge and scintillation readout

, 2010
The operational characteristics of a Micromegas operating in pure xenon at the pressure range of 1 to 10 bar are investigated. The maximum charge gain achieved in each pressure is approximately constant, around 4x10^2, for xenon pressures up to 5 bar and
, A. Tomas ., A.S. Conceicao ., B. Zhou, C Balan, C M B Monteiro, C.M.B. Monteiro ., E D C Freitas, F.D. Amaro, G.F. Knoll, H Natal da Luz, I Giomataris, J M F dos Santos, P.K. Lightfoot, R. Alon ., S. Andriamonje ., S. Cebrian ., T Papaevangelou, The NEXT collaboration   +18 more
core   +1 more source

Effect of Vapor Pressure Deficit on Nutrient Uptake and Growth of Four Tomato Varieties Grown Hydroponically at Low Nutrient Concentrations

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Marginal water sources, such as wastewater, have been proposed as the basis for hydroponic nutrient solutions to improve the resource efficiency of greenhouse‐based tomato production. Such water sources are often low in plant‐available nutrient concentrations, and uptake and use efficiency of these nutrients may vary widely among ...
Theresa Detering, Jörn Germer, Folkard Asch   +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  

Microprocessor-based single particle calibration of scintillation counter [PDF]

A microprocessor-base set-up is fabricated and tested for the single particle calibration of the plastic scintillator. The single particle response of the scintillator is digitized by an A/D converter, and a 8085 A based microprocessor stores the pulse ...
Mazumdar, G. K. D., Pathak, K. M.
core   +1 more source

Fabrication of amorphous lamellar freestanding poly(N‐dodecyl acrylamide) films and their mechanical properties

Polymer International, EarlyView.
A freestanding film of completely uniaxially oriented amorphous lamellae was produced. The film exhibited enhanced tensile strength with increasing orientation of the lamella. Abstract An amorphous lamellar freestanding film composed of poly(N‐dodecyl acrylamide) (pDDA) was prepared by annealing a micrometer‐thick film under humid conditions (humid ...
Yuki Koizumi, Yoshimasa Matsuo, Akito Masuhara, Hinako Ebe, Yuya Ishizaki‐Betchaku, Shusaku Nagano, Jun Matsui   +6 more
wiley   +1 more source

Observations of nuclei heavier than iron in the primary cosmic radiation [PDF]

Charge and energy spectra of primary cosmic rays made with large area Cerenkov scintillation counter on baloon flights - heavier than iron ...
Ormes, J. F., Von Rosenvinge, T., Webber, W. R.   +2 more
core   +1 more source

Dual-Stage Gas Proportional Scintillation Counter — Concept and Experimental Results [PDF]

, 2019
A.F.V. Cortez, C.A.N. Conde, S. J. C. do Carmo, F.I.G.M. Borges   +3 more
openalex   +1 more source