Results 101 to 110 of about 190,921 (304)

Climate Effects on Tallgrass Prairie Responses to Continuous and Rotational Grazing

Agronomy, 2019
Cattle grazing is an important economic activity in the tallgrass prairie systems in the Great Plains of the United States. Tallgrass prairie may respond differently to grazing management (e.g., high and low grazing intensity) under variable climate ...
Yuting Zhou, Prasanna H. Gowda, Pradeep Wagle, Shengfang Ma, James P. S. Neel, Vijaya G. Kakani, Jean L. Steiner   +6 more
doaj   +1 more source

Effects of Ponderosa Pine Ecological Restoration on Forest Soils and Understory Vegetation in Northern Arizona [PDF]

, 2017
The human exclusion of wildfire and overgrazing by livestock since settlement have caused dramatic changes in ponderosa pine (Pinus ponderosa Dougl ex Laws) forest ecosystems.
Abella, Scott R, Farrish, Kenneth W, Oswald, Brian P., Shaw-Faulkner, Melinda G., Thomas, Elena M   +4 more
core   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Opportunities and barriers for promoting biodiversity in Danish beef production

iScience
Summary: Grazing at near-natural stocking rates is increasingly rare, whereas abandonment and overgrazing is common, despite both leading to loss of threatened species.
Rasmus Ejrnæs, Lars Dalby, Jesper Bladt, Skjold Alsted Søndergaard, Lasse Dümke, Camilla Fløjgaard, Lars Dyhrberg Bruun, Ditte Dalsgaard Ejrnæs, Jesper Erenskjold Moeslund, Hans Henrik Bruun   +9 more
doaj   +1 more source

Ultrathin Quasi‐2D Perovskite‐Organic Segregated‐Structure Coupling for High‐Performance Narrowband Photomultiplication Detectors

Advanced Science, EarlyView.
Quasi‐2D perovskite‐organic segregated‐structure coupling enables low‐power narrowband photomultiplication photodetectors with 110 nm perovskite layer. The optimal device achieves 1200% EQE and 1.82 × 1011 Jones D* at 3 V, offering a new strategy for miniaturized high‐selectivity optoelectronic sensing.
Hongfei Qu, Peng He, Xingchao Zhao, Yongchao Xie, Fulong Huang, Xiaoling Ma, Byung Hui Lee, Han Young Woo, Yumeng Shi, Zuliang Zhuo, Fujun Zhang, Xixiang Zhu   +11 more
wiley   +1 more source

Effects of warm-season feeding on yak growth, antioxidant capacity, immune function, and fecal microbiota

Microbiology Spectrum
The yak (Bos grunniens) is of great importance to the local ecosystem and animal husbandry on the Tibetan Plateau. However, the impacts of different feeding practices on yak growth, health, and ecosystem interactions are not fully understood.
Yining Xie, Yangji Cidan, Zhuoma Cisang, Deji Gusang, Quzha Danzeng, Wangdui Basang, Yanbin Zhu   +6 more
doaj   +1 more source

Environmental and biodiversity impacts of organic farming in the hills and uplands of Wales [PDF]

, 2004
1. Organic farming is based on principles of co-existence with natural systems, the minimisation of pollution and damage to the environment, and the promotion of the health of soil, plant and animal to produce healthy food with high standards of animal ...
de Carle, Caroline, Fowler, Susan, Frost, David   +2 more
core  

Electrostatic Potential Complementarity for Thickness‐Tolerant Cathode Interlayers in High‐Efficiency Organic and Tandem Solar Cells

Advanced Science, EarlyView.
Two model molecules — trimesic acid (TMA) and phloroglucinol (PG) — with opposite central electrostatic potential (ESP) distributions are employed to elucidate how molecular electrostatic interactions regulate the cathode interlayer (CIL) PDINN. Electrostatic potential complementarity is revealed as the intrinsic origin of thickness sensitivity in CILs,
Xiaoman Ding, Dana Mukasheva, Jiaxu Che, Guangye Zhang, Xiuze Hei, Haoran Lin, Jie Lv, Patrick Fong, Zhiwei Ren, Annie Ng, Mingjian Yuan, Hongyu Zhang, Gang Li, Hanlin Hu   +13 more
wiley   +1 more source

A mathematical optimisation model of a New Zealand dairy farm: The integrated dairy enterprise (IDEA) framework [PDF]

, 2012
Optimisation models are a key tool for the analysis of emerging policies, price sets, and technologies within grazing systems. A detailed nonlinear optimisation model of a New Zealand dairy farming system is described.
Adler, Alfredo A., Doole, Graeme J., Romera, Alvaro J.   +2 more
core   +1 more source

Giant Conductivity Modulation and Chemical Neuromodulation via Proton‐Electron Coupling in a Hydrogen‐Bonded Coordination Polymer

Advanced Science, EarlyView.
A “de‐doping” strategy positions mixed protonic–electronic conductors (MPECs) as adaptive neuromorphic platforms with dynamically tunable transport. Co‐BAND achieves giant conductivity modulation (>106) and chemically tunable synaptic plasticity. Analogous to biological neuromodulation, solvent vapors dynamically reprogram the device's learning rules ...
Kwangmin Park, Jumin Park, Huiyeong Ju, Nasim Arafat, Byoung Gwan Lee, Joohee Oh, Eejin Jang, Hyunseob Lim, Seok Min Yoon, Dae‐Woon Lim, Intek Song   +10 more
wiley   +1 more source