Results 31 to 40 of about 653,832 (298)

Soil structural degradation and nutrient limitations across land use categories and climatic zones in Southern Africa [PDF]

, 2019
Although soil degradation is a major threat to food security and carbon sequestration, our knowledge of the spatial extent of the problem and its drivers is very limited in Southern Africa.
Kihara, Job, Mponela, Powell, Ndengu, Gift, Sila, Andrew M., Sileshi, Gudeta W., Tamene, Lulseged, Tondoh, Jérôme E.   +6 more
core   +1 more source

The costs of increasing precision for ecosystem services valuation studies

Ecological Indicators, 2022
Ecosystem services valuation (ESV) is increasingly used to provide the impetus to sustainably manage and restore ecosystems. When undertaking an ESV study, the available resources, desired scope, and necessary precision must be considered before ...
Ida Kubiszewski, Kennedy Muthee, A. Rifaee Rasheed, Robert Costanza, Maya Suzuki, Stacey Noel, Mark Schauer   +6 more
doaj   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Effects of gravel on the water infiltration process and hydraulic parameters of stony soil in the eastern foothills of Helan Mountain, China

Scientific Reports
The investigation into the impact of gravel on water infiltration process and hydraulic parameters in stony soil could offer a theoretical basis to enhance water availability in rocky mountain area.
Yan Ma, Youqi Wang, Yuhan Zhang, Ruiyuan Zhang, Cheng Yuan, Chengfeng Ma, Yiru Bai   +6 more
doaj   +1 more source

Recurrent Hypothermia and Autonomic Dysfunction Secondary to Shapiro Syndrome

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 44‐year‐old man presented with recurrent hypothermia, diaphoresis and hypertension. Extensive investigation for infectious, inflammatory, metabolic and endocrine aetiologies was negative. MR scan of the brain demonstrated no lesions but revealed callosal dysgenesis, consistent with Shapiro syndrome.
Naveen Kumar, Jeremy Johnson, Susanne Watkins, Eoin Mulroy   +3 more
wiley   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

The source of volatile organic compounds pollution and its effect on ozone in high-altitude areas

Ecotoxicology and Environmental Safety
Volatile organic compounds (VOCs) are crucial precursors in the formation of ozone (O3). The sources of pollution are complex and significantly impact O3 generation.
CongHui Wang, GuangYao Shi, LingTong Du, XiLu Ni, Yang Hu, DanBo Pang, JiangHong Meng   +6 more
doaj   +1 more source

Characterizing degradation gradients through land cover change analysis in rural Eastern Cape, South Africa [PDF]

, 2017
CITATION: Munch, Z., et al. 2017. Characterizing degradation gradients through land cover change analysis in rural Eastern Cape, South Africa. Geosciences, 7(1):7, doi:10.3390/geosciences7010007.The original publication is available at http://www.mdpi ...
Brown, Campbell, Carbutt, Clulow, Congalton, Dye, Homer, Huffman, Jewitt, Kotzé, Lück, Mudau, Pontius, Richter, Schoeman, Stott, Thomas, Van den Berg, Van den Berg, Van Niekerk, Wang, Wotshela, Xiaoxiao   +22 more
core   +3 more sources

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Variations in the quantity and chemical composition of soil dissolved organic matter along a chronosequence of wolfberry plantations in an arid area of Northwest China

Chemical and Biological Technologies in Agriculture
Background Dissolved organic matter (DOM) is the most active component of soil organic matter (SOM), playing a major role in regulating soil fertility and carbon cycling.
Rongjie Wu, Bin Xue, George Martial Ndzana, Yan Wang, Longwei Fu, Bingqing Liu, Ruili Gao, Kun Ma, Lingtong Du, Hui An, Muhammad Kamran   +10 more
doaj   +1 more source