Results 71 to 80 of about 236,281 (301)

Environmental impacts of grazed clover/grass pastures [PDF]

, 2009
peer-reviwedGrazed clover/grass pastures are important for animal production systems and the clover component is critical for its contribution to N inputs via biological fixation of atmospheric N2.
Erikson, J., Ledgard, S., Luo, J., Schils, René   +3 more
core  

Dietary niche partitioning between sympatric brown hares and rabbits [PDF]

, 2017
Coexistence of ecologically similar species is sustained by niche partitioning, a fundamental element of which is diet. Overlapping of resource requirements between sympatric species can create interspecific competitive or facilitative effects on the ...
Aebischer, Ahrestani, Arsenault, Bakker, Bakker, Bell, Bhadresa, Calenge, Cheng, Clarke, Cowan, Fitzgerald, Flux, Galende, Gordon, Hofmann, Homolka, Homolka, Hulbert, Iason, Jarman, Jennings, Karmiris, Kartzinel, Katona, Katona, Katona, Kuijper, Kuijper, Langevelde, Lush, Martin, Puig, R Development Core Team, Reichlin, Sakaguchi, Schai-Braun, Stahl, Stewart, Wolfe   +39 more
core   +2 more sources

Reduced Maintenance DNA Methylation Thresholds Enable Sensitive Reporter Assays for UHRF1 and DNMT1 Inhibition

Advanced Science, EarlyView.
The authors engineer colorectal cancer cells with reduced redundancy of UHRF1 and DNMT1, key DNA methylation maintenance factors, lowering the maintenance threshold and sensitizing cells to inhibition. They develop reporter assays driven by endogenous tumor‐suppressor gene promoters with enhanced sensitivity and dynamic range to demethylating drugs ...
Cuicui Xia, Ying Cui, Jiongliang Wang, Wenjing Bai, Danyang Wang, Yao Chen, Huahui Guo, Liangyi Zong, Bing Qin, Xintong Cai, Jie Wang, Jing Huang, Scott B. Rothbart, Zufeng Guo, Stephen B. Baylin, Xiangqian Kong   +15 more
wiley   +1 more source

Agricultural phosphorus and water quality: sources, transport and management

Agricultural and Food Science, 1998
Freshwater eutrophication is usually controlled by inputs of phosphorus (P). To identify critical sources of P export from agricultural catchments we investigated hydrological and chemical factors controlling P export from a mixed land use (30% wooded ...
Andrew Sharpley, William Gburek, Louise Heathwaite   +2 more
doaj  

EFFECT OF MANAGEMENT PRACTICES AND HARVESTING STAGE ON BOTANICAL COMPOSITION, BIOMASS YIELD, AND NUTRITIONAL VALUE OF NATURAL PASTURE UNDER TRADITIONAL LIVESTOCK PRODUCTION SYSTEM IN THE CENTRAL HIGHLANDS OF ETHIOPIA

Tropical and Subtropical Agroecosystems
Background: Natural pasture is an essential source of livestock feed worldwide, particularly in Ethiopia. Though pastureland coverage and management practices are changing over time, studies are limited in addressing the status under the dynamics of ...
Lidetewold Tsega Dossegna, Ajebu Nurfeta, Adugna Tolera, Fekede Feyissa   +3 more
doaj   +1 more source

vEMRec: High‐Resolution Volume Electron Microscopy Reconstruction Based on Structure‐Preserving and High‐Fidelity 3D Alignment

Advanced Science, EarlyView.
vEMRec is a frequency‐adaptive computational framework for three‐dimensional alignment in volume electron microscopy. It integrates feature‐based rigid alignment with Gaussian filter‐guided elastic registration to correct rigid misalignments and nonlinear distortions while preserving structural fidelity.
Zhenbang Zhang, Hongjia Li, Zhongjun Yang, Zhiqiang Xu, Duanchen Sun, Xin Gao, Fa Zhang, Renmin Han   +7 more
wiley   +1 more source

Dairy Resource Management: A Comparison of Conventional and Pasture-Based Systems [PDF]

Facing rapid and significant change in the sector, U.S. dairy production trends from 1993-2005 were tracked and performance measures (scale and technical efficiency and returns on assets) were estimated for conventional and pasture-based dairy farms ...
Gillespie, Jeffrey M., Nehring, Richard F., O'Donoghue, Erik J., Sandretto, Carmen L.   +3 more
core   +1 more source

Managing Smutgrass in Irrigated Pastures [PDF]

, 2012
Author(s): Davy, Josh; Forero, Larry; Nader, Glenn; Ditomaso, Joseph; Kyser, Guy | Abstract: Small smutgrass is a grass that grows well in irrigated pastures but is not palatable to livestock. So what happens if it grows well and it doesn't get eaten? It takes over the pasture!
Davy, Josh, Forero, Larry, Nader, Glenn, Ditomaso, Joseph, Kyser, Guy   +4 more
openaire   +3 more sources

miR‐135a‐5p Is a Promising Target to Prevent the Glomerulosclerosis Associated with Podocyte Developmental Toxicity in Offspring Induced by Prenatal Dexamethasone Exposure

Advanced Science, EarlyView.
Prenatal dexamethasone exposure (PDE) programs persistent podocyte developmental injury and adult glomerulosclerosis. Mechanistically, glucocorticoid receptor (GR) binds the miR‐135a‐5p promoter and recruits the histone acetyltransferase p300, increasing promoter histone acetylation and sustaining miR‐135a‐5p expression. Elevated miR‐135a‐5p suppresses
Xiaoqi Zhao, Haiyun Chen, Yanan Zhu, Zhiping Xia, Hangyuan He, Yutang Liu, Tianshu Yang, Hui Wang, Ying Ao   +8 more
wiley   +1 more source

Farmer driven water conservation policy on the Ogallala aquifer reduces the environmental footprints of crop production

Agricultural Water Management
The Ogallala Aquifer underlies 45 million hectares, supporting the robust agricultural economy of the US Great Plains and providing water for about 1.9 million people.
José P. Castaño-Sánchez, C. Alan Rotz, Jean L. Steiner, Bill Golden, Sheri A. Spiegal   +4 more
doaj   +1 more source