Results 61 to 70 of about 1,627,153 (385)

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

A Monte Carlo Simulation for the X-ray Detection Efficiency of a Multi-Cell Proportional Counter [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1998
The X-ray astronomy team of the Korea Astronomy Observatory (KAO) is planning to develop a multi-cell proportional counter, adopting an anti-coincidence method to reduce its internal background. We have developed a Monte Carlo code to determine the X-ray
Ki-Won Lee   +3 more
doaj  

Fast-neutron spectrometer developments [PDF]

open access: yes, 1973
Li6 sandwich-type neutron spectrometer is equipped with proportional counter for particle identification.
Baker, S. I.   +2 more
core   +1 more source

Shadow prices for continuous processes [PDF]

open access: yes, 2015
In a financial market with a continuous price process and proportional transaction costs we investigate the problem of utility maximization of terminal wealth.
Czichowsky, Christoph   +2 more
core   +2 more sources

Proportional Counters and Microchannel Plates

open access: yes, 2022
Developed right at the beginning of the space age in the 1940s, the proportional counter was the first detector used in X-ray astronomy and stayed its workhorse for almost four decades. Although the principle of such a detector seems to be rather simple, over time it underwent considerable performance improvements and the lifetime under orbital ...
openaire   +2 more sources

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

open access: yesFEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

Position resolution performance of a position-sensitive 3He proportional counter based on a time-difference method

open access: yesHe jishu
BackgroundNeutron localization technology can be used for monitoring spent fuel reprocessing to prevent nuclear criticality accidents.PurposeThis study aims to investigate the effects of different neutron emission modes, 3He pressure, tube diameter, and ...
WANG Xinyue   +5 more
doaj   +1 more source

Copper activation detector for high energy-pulsed neutron measurements

open access: yesRadiation Protection and Environment, 2019
A first of its kind threshold activation proportional counter is developed using copper for the measurement of pulsed 14 MeV neutrons. The detector is of 26 mm outer diameter and 200 mm overall length.
Priyamvada M Dighe
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Radioactivity Measurement of 85Kr by Using Anti-cosmic Ray Internal Gas Proportional Counter

open access: yesYuanzineng kexue jishu
85Kr is a noble gas radioactive nuclide with a half-life of 10.75 years, and it decays by emission of beta rays associated with weak gamma rays. Most of the 85Kr released into the atmosphere is artificially produced by neutron induced fission reactions ...
LIANG Jianfeng, XIE Feng, DAI Yihua, SHI Quanlin, WANG Chunjie, LI Xuesong, GUAN Qingdi, JIANG Wengang, YU Gongshuo, LIU Zhichao
doaj   +1 more source

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