Results 61 to 70 of about 2,997 (257)

Selenophene‐substituted A‐D‐A‐type non‐fullerene acceptors for organic solar cells with an ultra‐high short‐circuit current density of 27.14 mA cm−2

FlexMat, EarlyView.
Two novel narrow bandgap electron‐deficient acceptors 6TFSe‐4F and 6TFSe‐4Cl were rationally constructed via synergistic core fluorination, selenophene substitution, and alkylation, enhancing donor‐acceptor molecular electrostatic potential difference to improve exciton dissociation and reduce energy loss.
Jianan Fang, Shuzhen Liao, Jiayi Cheng, Yuang Fu, Meng Tao, Jin Li, Peipei Zhu, Mingtao Liu, Zeng Li, Xinhui Lu, Xunfan Liao, Yiwang Chen   +11 more
wiley   +1 more source

Impact of different grazing systems for bovine cattle on the soil microbiological and chemical characteristics

Revista Brasileira de Zootecnia, 2011
The objective of this work was to study the effect of grazing systems: rotational, continuous and the absence of cattle, in pastures of Brachiaria brizantha on microbial activity (respiratory, potential nitrification, solubilizing, and enzymatic) and on ...
Martha Regina Lucizano Garcia, Alexandre Amstalden Moraes Sampaio, Ely Nahas   +2 more
doaj   +1 more source

Material design strategies for flexible n‐type polymer semiconductors

FlexMat, EarlyView.
This Perspective surveys recent progress in flexible n‐type polymer semiconductors, emphasizing the interplay between molecular design and microstructure control. It outlines strategies including backbone and side‐chain engineering, multilevel microstructure optimization, to maintain charge‐transport pathways under mechanical deformation.
Xiao‐Yan Zhang, Yang‐Yang Zhou, Jie‐Yu Wang, Jian Pei, Ze‐Fan Yao   +4 more
wiley   +1 more source

“There will always be collars in my future”; Exploring US ranchers’ and company representatives’ perspectives of virtual fencing for livestock

Smart Agricultural Technology
Fencing is essential for rotational grazing, a pivotal practice to support conservation and natural resource management. Virtual fencing offers a technological alternative to traditional fencing and represents potential for increased resource ...
Jenny Melo-Velasco, Kelly R. Wilson, Jocelyn Heimsoth, Robert L. Myers   +3 more
doaj   +1 more source

Evaluación de un sistema de manejo de Axonopus catarinensis en rotación basado en el remanente de forraje no pastado (Renopa)

Tropical Grasslands-Forrajes Tropicales, 2018
A new rotational-grazing management strategy called PUP-grazing (proportion of un-grazed pasture, which is the estimated percentage of pasture vegetation without signs of being consumed) was compared with the traditional rotational-grazing management ...
Daniel R. Pavetti, Marcelo A. Benvenutti, Óscar Radke, Ómar A. Cibils   +3 more
doaj   +1 more source

Selection for persistence of endophyte‐free meadow fescue under intensive grazing versus frequent mowing

Grassland Research, EarlyView.
Cattle grazing meadow fescue pasture in remnant oak savanna near Fennimore, Wisconsin. Abstract Background Meadow fescue (Schedonorus pratensis (Huds.) P. Beauv.) is highly adapted to managed rotational grazing systems with sufficient rest periods to promote regrowth and sward longevity.
Michael D. Casler
wiley   +1 more source

Key soil health indicators under humid grazing lands

Grassland Research, EarlyView.
Soil health can be described using a few key soil health indicators that target a diversity of soil functions. This perspective article highlights how forage management affects these soil health indicators in humid‐zone grazing lands. Abstract Background Soil health describes critical soil functions influenced by land management. Although some key soil
Alan J. Franzluebbers
wiley   +1 more source

Can Ammonium Nitrate Be a Strategic Tool by Replacing Urea as a Nitrogen Supplementation Source to Beef Cattle in Intensified Grazing Systems?

Fermentation
For cattle raised on tropical grass pastures, it is essential to explore strategies that circumvent climatic seasonality that affect forage availability and quality. We hypothesize that the intensification of grazing systems, with rotational and deferred
Willian Rufino Andrade, Analisa Vasques Bertoloni, Flavio Perna Junior, Althieres José Furtado, Ana Laura Januário Lelis, Murilo Trettel, Alexandre Berndt, Patricia Perondi Anchão Oliveira, Angélica Simone Cravo Pereira, Paulo Henrique Mazza Rodrigues   +9 more
doaj   +1 more source

Existing Accessible Modeling Tools Offer Limited Support to Evaluation of Impact Investment in Rangeland Ecosystem Services

Frontiers in Sustainable Food Systems, 2019
Privately owned rangelands in the western US support many ecosystem services and are threatened by financial incentives favoring conversion to housing development and more intensive forms of agriculture.
Beatrice L. Gordon, Virginia A. Kowal, Ambika Khadka, Rebecca Chaplin-Kramer, Roy Roath, Benjamin P. Bryant, Benjamin P. Bryant   +6 more
doaj   +1 more source

Towards Water, Food and Energy Security: The Global Challenges and Possible Solutions for a Holistic Vision of Sustainability

Irrigation and Drainage, EarlyView.
ABSTRACT This invited paper gives an overview of the challenges the world is facing and offers a possible solution for water and food security within the holistic integrated concept of the water–energy–food (WEF) nexus. The paper summarizes the experience the author gained through working on various research projects at national and international ...
Ragab Ragab
wiley   +1 more source