Results 71 to 80 of about 47,392 (189)

Simulation and Efficiency Studies of Optical Photon Transportation and Detection with Plastic Antineutrino Detector Modules

, 2018
In this work, the simulation of optical photons is carried out in an antineutrino detector module consisting of a plastic scintillator connected to light guides and photomultipliers on both ends, which is considered to be used for remote reactor ...
Cakir, Altan, Kandemir, Mustafa
core   +1 more source

Unprecedented Burning in Tropical Peatlands During the 20th Century Compared to the Previous Two Millennia

Global Change Biology, Volume 32, Issue 3, March 2026.
This study reveals unprecedented burning in tropical peatlands during the 20th century, mainly expressed in the Indomalayan and Australasian regions, emphasising regional variability in peatland burning and its links to modern human activities. Before this period, tropical peatland burning largely followed changes in global temperature and was ...
Yuwan Wang, Ted R. Feldpausch, Graeme T. Swindles, Patrick Moss, Hamish A. McGowan, Thomas G. Sim, Paul J. Morris, Adam Benfield, Colin Courtney‐Mustaphi, David Wahl, Encarni Montoya, Esther Githumbi, Eurídice N. Honorio Coronado, Femke Augustijns, Gert Verstraeten, Jess O' Donnell (Roe), John Tibby, Juan C. Benavides, K. Anggi Hapsari, Karsten Schittek, Khairun Nisha Mohamed Ramdzan, Kunshan Bao, Lydia E. S. Cole, Lysanna Anderson, Mariusz Gałka, Orijemie Emuobosa Akpo, Paul Strobel, Prabhakaran Ramya Bala, René Dommain, Rob Marchant, Raman Sukumar, Sakonvan Chawchai, Sarath Pullyottum Kavil, Scott Mooney, Thomas J. Kelly, Yang Gao, Apostolos Voulgarakis, Arnoud Boom, Chantelle Burton, Juan Carlos Berrio, Kelly Ribeiro, Liana O. Anderson, Mark Hardiman, Molly Spater, Susan E. Page, Angela V. Gallego‐Sala   +45 more
wiley   +1 more source

Lagrangian study of surface transport in the Kuroshio Extension area based on simulation of propagation of Fukushima-derived radionuclides

, 2013
Lagrangian approach is applied to study near-surface large-scale transport in the Kuroshio Extension area using a simulation with synthetic particles advected by AVISO altimetric velocity field.
Budyansky, M. V., Prants, S. V., Uleysky, M. Yu.   +2 more
core   +2 more sources

Choroidal–ventricular system abnormalities are linked to amyloid‐β aggregation in Alzheimer's disease

Alzheimer's &Dementia, Volume 22, Issue 2, February 2026.
Abstract INTRODUCTION Enlargement of the choroidal–ventricular system occurs in aging and Alzheimer's disease (AD), but emerging evidence links these abnormalities to amyloid beta (Aβ) aggregation. We tested this hypothesis by assessing associations between AD pathophysiology and choroidal–ventricular system measures across the AD continuum.
Seyyed Ali Hosseini, Etienne Aumont, Nesrine Rahmouni, Marcel S Woo, Arthur C. Macedo, Brandon Hall, Tevy Chan, Joseph Therriault, Lydia Trudel, Yansheng Zheng, Gleb Bezgin, Aurélie Lebrun, Jaime Fernandez Arias, Kely Quispialaya Socualaya, Cécile Tissot, Stijn Servaes, Yi‐Ting Wang, Delphine Oliva‐Lopez, Stuart Mitchell, Robert Hopewell, Chris Hung‐Hsin Hsiao, Catherine Saleh, Jenna Stevenson, Firoza Lussier, Liyong Wu, Min Chu, Sanjeev Chawla, Vladimir Fonov, Gassan Massarweh, Yasser Iturria Medina, Jean‐Paul Soucy, Karine Provost, David A. Rudko, Thomas Karikari, Andréa Lessa Benedet, Nicholas J. Ashton, Henrik Zetterberg, Maxime Montembeault, Paolo Vitali, Kaj Blennow, Serge Gauthier, D. Louis Collins, Jesse Klostranec, Tharick A. Pascoal, Pedro Rosa‐Neto   +44 more
wiley   +1 more source

Suitability of high-pressure xenon as scintillator for gamma ray spectroscopy

, 2012
In this paper we report the experimental study of high-pressure xenon used as a scintillator, in the context of developing a gamma ray detector. We measure a light yield near 2 photoelectrons per keV for xenon at 40 bar. Together with the light yield, we
Chandra, R., Curioni, A., Davatz, G., Frederich, H., Gendotti, A., Gendotti, U., Goeltl, L., Jebali, R., Murer, D., Resnati, F., Rubbia, A.   +10 more
core   +1 more source

A critical role of heterotrophic bacteria in early diagenesis of carbonates through exopolymer degradation and calcium release

The Depositional Record, Volume 12, Issue 1, February 2026.
Exopolymeric substances (EPS) produced in the photic zone and surface sediments sequester calcium. Below the sediment surface, heterotrophic bacteria degrade EPS, releasing calcium resulting in carbonate precipitation. This process, which continues for millennia deep in the core, is an important sink for atmospheric carbon dioxide.
Pieter T. Visscher, Pierre Boussagol, Raphael Bourillot, Christophe Dupraz, Olivier Braissant, Alan W. Decho, Brendan P. Burns, Richard Allen White III, Paxton Tomko, Emmanuelle Vennin   +9 more
wiley   +1 more source

Radiocaesium in the fungal compartment of forest ecosystems [PDF]

, 2003
Fungi in forest ecosystems are major contributors to accumulation and cycling of radionuclides, especially radiocaesium. However, relatively little is known about uptake and retention of 137Cs by fungal mycelia.
Vinichuk, Mykhaylo
core  

Comparison of data on Mutation Frequencies of Mice Caused by Radiation - Low Dose Model -

, 2013
We propose LD(Low Dose) model, the extension of LDM model which was proposed in the previous paper [Y. Manabe et al.: J. Phys. Soc. Jpn. 81 (2012) 104004] to estimate biological damage caused by irradiation. LD model takes account of all the considerable
Davis A. P., Manabe Y., Muller H. J., Russell W. L., Russell W. L., Russell W. L., Russell W. L., Searle A. G., Selby P. B., Tubiana M., Vilenchik M. M.   +10 more
core   +1 more source

Enhanced carbonate production model for temperate stratified lakes

Limnology and Oceanography, Volume 71, Issue 2, February 2026.
Abstract From spring 2022 to late summer 2024, a study of Lake Ilay's water column and sediment cores analyzed key environmental parameters. Conductivity, temperature, and chlorophyll‐a were measured at 2 m, while pH, conductivity, temperature, calcium (Ca2+), and alkalinity were monitored within the top 20 m.
Pierre Boussagol, Emmanuelle Vennin, Sebastien Motreuil, Aline Bonnotte, Guillaume Jouve, Laurent Millet, Thomas Munier, Pieter T. Visscher   +7 more
wiley   +1 more source

东北黑土中137Cs背景值研究

Shuitu Baochi Xuebao, 2004
通过测定东北黑土背景点样品中137Cs活度,探讨了土壤剖面中137Cs的分布特征,对因风蚀造成背景点土壤表层137Cs的沉积进行了校正,得出了黑土的137Cs背景值,为水蚀风蚀两相侵蚀地区土壤137Cs背景值的确定提供了新思路。结果表明:黑土背景点土壤剖面中137Cs比活度的分布呈指数型,其拟合方程为Cs=76.744e-0.2566h,相关系数达到0.994。剖面中75.7%的137Cs分布在0～5cm的表层中,92.5%的137Cs分布在0～10cm的土壤上层;黑土的137Cs背景值为2463 ...
阎百兴 汤洁
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