Results 61 to 70 of about 6,434,964 (293)

More evidence for anthropogenic influence on climate change [PDF]

Proceedings of the National Academy of Sciences, 2013
Studies of climate change by means of optimal detection of faint signals embedded in natural variability have been underway for several decades now (1⇓–3), and some more recent ones are referred to in refs. 4⇓⇓–7. These studies are also sometimes referred to as “fingerprint” studies. The idea is that if the space–time pattern of response to one or more
openaire   +2 more sources

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

Land‐use affects pollinator‐specific resource availability and pollinator foraging behaviour

Ecology and Evolution
Land‐use management is a key factor causing pollinator declines in agricultural grasslands. This decline can not only be directly driven by land‐use (e.g., habitat loss) but also be indirectly mediated through a reduction in floral resource abundance and
Markus Birkenbach, Florian Straub, Anna Kiesel, Manfred Ayasse, Lena Wilfert, Jonas Kuppler   +5 more
doaj   +1 more source

Copper‐Driven Epithelial Barrier Disruption: A Novel Mechanism of COPD Acute Exacerbations Mediated by the TNF‐α/ATP7A Axis

Advanced Science, EarlyView.
This study reveals a copper‐driven mechanism of COPD acute exacerbations mediated by the TNF‐α/ATP7A axis. TNF‐α suppresses the copper transporter ATP7A via competitive NF‐κB/CREB1/CBP signaling, resulting in intracellular copper accumulation, mitochondrial oxidative stress, and epithelial barrier disruption.
Xinru Xiao, Yongzhe Hao, Ziqi Ding, Zhipeng Wang, Yujia Shi, Yanhua Huang, Chunjian Qi, Qian Zhang   +7 more
wiley   +1 more source

Anthropogenic Influence on Prevalence of 2 Amphibian Pathogens

Emerging Infectious Diseases, 2008
(Uploaded by Plazi for the Bat Literature Project) No abstract provided.
Valerie St-Amour, Wai M. Wong, Trenton W.J. Garner, David Lesbarrères   +3 more
openaire   +4 more sources

Anthropogenic Influences on Conservation Values of White Rhinoceros

PLoS ONE, 2012
White rhinoceros (rhinos) is a keystone conservation species and also provides revenue for protection agencies. Restoring or mimicking the outcomes of impeded ecological processes allows reconciliation of biodiversity and financial objectives. We evaluate the consequences of white rhino management removal, and in recent times, poaching, on population ...
Sam M Ferreira, Judith M Botha, Megan C Emmett   +2 more
openaire   +4 more sources

Identifying Anthropogenic Sources of Heavy Metals in Alpine Peatlands over the Past 150 Years: Examples from Typical Peatlands in Altay Mountains, Northwest China

, 2023
Alpine mountain peatlands are valuable archives of climatic and anthropogenic impact. However, the impacts of human activities on the Altay peatlands are poorly documented.
Xiujun Li, Xiaoyu Li, Xingtu Liu, Bolong Wen, Rui Yu, Nana Luo   +5 more
core   +1 more source

Underground Signals: The Ecological Power of Root Volatiles

Advanced Science, EarlyView.
Root volatiles mediate rhizosphere chemical communication, shaping interactions among plants, microbes, herbivores, and natural enemies. Their production, transport, and perception underpin ecological adaptation, multitrophic interactions, and plant resilience, offering opportunities for sustainable crop protection, resilient agroecosystems, and ...
Xueyao Cao, Nanli Song, François Verheggen, Meritxell Pérez‐Hedo, Andrea Clavijo McCormick, Antonino Cusumano, Arthur de Fouchier, Bing Wang, Chen‐Zhu Wang, Emmanuelle Jacquin‐Joly, Gary W. Felton, Geoff M. Gurr, Hao Guo, Jiancai Li, Jin Zhang, Li Chen, Manqun Wang, Michele Ricupero, Peng Han, Peng He, Qi Yan, Qingbo Tang, Qingsong Liu, Shiheng An, Xiangbo Kong, Xiaoling Sun, Xueming Ren, Yuanyuan Song, Yang Liu, Yanhui Guo, Yunhe Li, Xiao Sun   +31 more
wiley   +1 more source

Quantitative Assessment of the Water Stress in the Tigris–Euphrates River Basin Driven by Anthropogenic Impacts

Remote Sensing
Water stress has induced many environmental and developmental conflicts in the arid basins in the Middle East region under the context of climate change and increasing anthropogenic influence.
Wenfei Luan, Xin Li, Wenhui Kuang, Jianbin Su, Huazhu Xue, Kaixiang Zhang, Jingyao Zhu, Ge Li   +7 more
doaj   +1 more source

Evaluating the influence of lake morphology, trophic status and diagenesis on geochemical profiles in lake sediments [PDF]

, 2010
Recent geochemical studies provide evidence that changes in vertical distributions of nutrients in lake sediments are driven by anthropogenic activities, based primarily on trends of increasing concentrations in upper sediment layers.
Pilditch, Conrad A., Trolle, Dennis, Hamilton, David P.   +2 more
core   +1 more source