Results 71 to 80 of about 89,931 (247)

Warming summers limit reindeer grazing, weakening herbivory pressure in the mountain tundra

Ecography, EarlyView.
Climate change is predicted to alter species interactions by exposing ecosystems to increasingly frequent and intense warm spells. In the mountain tundra, grazing by large herbivores, particularly reindeer, can limit shrub expansion and preserve Arctic plant diversity.
Marianne Stoessel, Akiko Kato, Regina Lindborg   +2 more
wiley   +1 more source

A globally consistent scaling relationship reveals stabilizing effects of dominant species in plant communities

Ecography, EarlyView.
Despite extensive research, stabilizing mechanisms in ecosystems remain uncertain. Taylor's power law (TPL) is a pervasive ecological pattern that describes how variance scales with mean abundance (σ2 = aμᵇ). While TPL has been widely studied within populations, its role across species within communities and its implications for stability remain ...
Clara Gracia, Jules Segrestin, Jan Lepš, Peter B. Adler, Susan P. Harrison, Lars Götzenberger, Enrique Valencia, Víctor Lecegui, Manuele Bazzichetto, Roberto Canullo, Stefano Chelli, Jürgen Dengler, Jiri Dolezal, David J. Eldridge, Franz Essl, Felícia M. Fischer, Anaclara Guido, Lauren Hallet, Tomas Herben, Norbert Hölzel, Anke Jentsch, Miklós Kertész, Xiaofei Li, Gábor Ónodi, Robin J. Pakeman, Alain Paquette, Kersti Pussa, Anita C. Risch, Marta Rueda, Wolfgang Schmidt, Ute Schmiedel, Zhiwei Zhong, Martin Zobel, Francesco de Bello   +33 more
wiley   +1 more source

Large eddy simulation of near-surface boundary layer dynamics over patchy snow

Frontiers in Earth Science
The near-surface boundary layer over patchy snow is highly heterogeneous and dynamic. Layers of opposing stability coexist within only a few horizontal meters. Conventional experimental methods to investigate this layer suffer from limitations related to
Michael Haugeneder, Michael Haugeneder, Michael Lehning, Michael Lehning, Océane Hames, Océane Hames, Mahdi Jafari, Dylan Reynolds, Dylan Reynolds, Rebecca Mott   +9 more
doaj   +1 more source

Hot spots or hot moments? Contextualizing the spatio‐temporal scale of research on animal inputs

Ecography, EarlyView.
Mammals play important roles in redistributing elements across ecosystems, concentrating biogeochemical inputs across both space and time. However, research on zoogeochemical inputs is often constrained by logistical considerations, potentially limiting our knowledge of mammals' impacts on biogeochemical patterns and processes.
Kristy M. Ferraro, Elizabeth S. Forbes, Andrew J. Abraham, Julia D. Monk   +3 more
wiley   +1 more source

Influence of Movement Restriction During the COVID-19 Pandemic on Uptake of DMPA-SC and Other Injectable Contraceptive Methods in Nigeria

Open Access Journal of Contraception
Adewole Adebola Adefalu,1 Olufunke Abimbola Bankole,2 Funmilayo Olabode,2 Mojuba Bimbo Afolabi,2 Miranda Atare Buba,2 Victor Dafe,2 Mishael Nnanna Kalu,2 Emily Watkins3 1JSI Research & Training Institute, Inc., Atlanta, GA, USA; 2JSI Research & ...
Adefalu AA, Bankole OA, Olabode F, Afolabi MB, Buba MA, Dafe V, Kalu MN, Watkins E   +7 more
doaj  

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao, Xiaolong Wang, Xiao Chen, Dong Liu, Zhenhui Kang, Cheng Zhu   +5 more
wiley   +1 more source

Acceptability of HIV self-testing to support pre-exposure prophylaxis among female sex workers in Uganda and Zambia: results from two randomized controlled trials

BMC Infectious Diseases, 2018
Background HIV pre-exposure prophylaxis (PrEP) is highly effective for prevention of HIV acquisition, but requires HIV testing at regular intervals. Female sex workers (FSWs) are a priority population for HIV prevention interventions in many settings ...
Katrina F. Ortblad, Michael M. Chanda, Daniel Kibuuka Musoke, Thomson Ngabirano, Magdalene Mwale, Aidah Nakitende, Steven Chongo, Nyambe Kamungoma, Catherine Kanchele, Till Bärnighausen, Catherine E. Oldenburg   +10 more
doaj   +1 more source

Behavior of Long‐Slotted Perforated Steel Plate Fuses in Timber Brace End Connections

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Steel perforated plate fuses have emerged as a promising solution for mass timber seismic force‐resisting systems, offering tunable energy dissipation mechanisms, such as flexural and shear yielding, through geometric adjustments. This study examines the cyclic performance of perforated steel plate fuses employed in timber braced frames, with ...
Yahia Ahmed, Hossein Daneshvar, Ying Hei Chui   +2 more
wiley   +1 more source

Maximizing Energy Generation in Agrivoltaic Systems: A Study of Bifacial and Monofacial Modules With Consideration of Module Height and Albedo Impact

Energy Science &Engineering, EarlyView.
This study evaluates the performance of bifacial and monofacial PV modules in agrivoltaic systems using PVsyst simulations. Real albedo measurements from a wheat field were incorporated to ensure realistic results. Bifacial modules demonstrated a 19.46% increase in energy yield compared to monofacial ones.
Hasan Demir, Atıl Emre Coşgun, Mustafa Sacid Endiz, Bilal Şenol   +3 more
wiley   +1 more source

Reliability and Degradation Mechanisms of Photovoltaic Modules in Pakistan

Energy Science &Engineering, EarlyView.
Reliability of the PV module. ABSTRACT The number of photovoltaic (PV) installations has grown rapidly in the last 10 years in Pakistan due to the growing electricity demand, the availability of favourable solar resources, and the national renewable energy objectives.
Zafar Ullah Khan, Adnan Daud Khan, Muhammad Ahsan Amjed   +2 more
wiley   +1 more source