Results 51 to 60 of about 8,708 (260)

Socioeconomic Changes and Land Use and Land Cover of the Northern Region of Rio Grande do Sul, Brazil

Floresta e Ambiente
The dynamics of land use and cover at different spatial and temporal scales allows us to evaluate changes in landscapes, socioeconomic system and impacts on the natural environment.
Ivan Luís Rovani, Vanderlei Secretti Decian, Elisabete Maria Zanin, Marciana Brandalise, Franciele Rosset Quadros, Luiz Ubiratan Hepp   +5 more
doaj   +1 more source

Physical properties and organic carbon content of a Rhodic Kandiudox fertilized with pig slurry and poultry litter

Revista Brasileira de Ciência do Solo, 2012
The impact of pig slurry and poultry litter fertilization on soils depends on the conditions of use and the amounts applied. This study evaluated the effect of organic fertilizers after different application periods in different areas on the physical ...
Luiz Paulo Rauber, Cristiano Dela Piccolla, Andréia Patrícia Andrade, Augusto Friederichs, Álvaro Luiz Mafra, Juliano Corulli Corrêa, Jackson Adriano Albuquerque   +6 more
doaj   +1 more source

Chemical characteristics, degradation kinetics and gas production of arboreal species for ruminants

Revista Ciência Agronômica, 2020
The breeding systems of the small ruminants are extensive in the great majority, in which the animals are created in areas of native pasture named Caatinga, being necessary the knowledge on the chemical composition and its characteristics of feed ...
Leandro Pereira de Oliveira, André Luiz Rodrigues Magalhães, Ana Lúcia Teodoro, Albericio Pereira de Andrade, Kelly Cristina dos Santos, Gherman Garcia Leal de Araújo   +5 more
doaj   +1 more source

Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys

Advanced Science, EarlyView.
This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin, Cheng‐Wei Lee, Nate S.P. Bernstein, Thi Nguyen, Ande Bryan, Eli Cooper, John S. Mangum, Sage R. Bauers, Andriy Zakutayev, Keisuke Yazawa, Prashun Gorai, Rebecca W. Smaha   +11 more
wiley   +1 more source

Immune response of sheep naturally infected with Haemonchus spp. on pastures with two different nutritional conditions

Semina: Ciências Agrárias, 2017
Parasitic nematodes in the gastrointestinal tract of small ruminants are considered one of the main causes of economical and productive losses. Haemonchus contortus is characterized as the major parasite affecting sheep worldwide. This study was designed
Gustavo Toscan, Gustavo Cauduro Cadore, João Francisco Tadinello Limana, Augusto Weber, Heloisa Heinloft Palma, Marta Medeiros Frescura Duarte, Luis Antônio Sangioni, Fernanda Silveira Flores Vogel   +7 more
doaj   +1 more source

β‐Elemene Rescues Radiation‐Induced Enteritis by Orchestrating a Host‐Microbiome Circuit That Fuels Epigenetic DNA Repair

Advanced Science, EarlyView.
This study elucidates that β‐elemene promotes cellular uptake of L. gasseri‐derived lactate by enhancing the membrane translocation of MCT1 in a CD147‐dependent manner. Intracellular lactate, through the lactylation of RBBP4 at the K26 site, recruits EP300 to the promoter regions of downstream genes (POLD1/POLD3), catalyzing H3K27ac modification.
Jiancheng He, Jiapeng Bao, Shukang Deng, Weijie Zang, Haoming Yan, Zihao Zhao, Guangze Zhang, Ruiqing Liu, Junjie Chen, Yilin Hu, Wanjiang Xue   +10 more
wiley   +1 more source

Desempenho de pastagem nativa e pastagem sobre-semeada com forrageiras hibernais com e sem glifosato Performance of native pasture and pasture sodseeded with winter species with or without glyphosate

Ciência Rural, 2004
O experimento foi desenvolvido em Bagé-RS, visando avaliar a produção de matéria seca (MS), taxa de lotação (kg de PV ha-1), ganho de peso vivo por animal (GMD, kg an-1 dia-1) e ganho por hectare (GPV ha-1) em: T1-pastagem nativa (testemunha); T2 ...
Luciana Melo Rizo, Eduardo Londero Moojen, Fernando Luiz Ferreira de Quadros, Francisco Leal Côrrea, José Acélio Fontoura Júnior   +4 more
doaj   +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

Chopped Sugar Cane and Urea Supplementation in Ovines during the Dry Season

Agrisost, 2018
The aim of this paper was to prevent weight loss in ovines grazing on native grass, by providing chopped sugar cane alone, and chopped sugar cane + urea. Secondly, to evaluate the effect of sugar cane + urea supplementation compared to chopped sugar cane
José Manuel Hernández Guerrero, José Manuel Moras Cordero, Marció Wilson Sousa Josias   +2 more
doaj   +3 more sources

Large‐Scale Growth of Self‐Poled Ferroelectric Rashba Semiconductor α‐GeTe(111) Thin Films: A Crucial Step Towards Future CMOS‐Compatible Ferroelectric Spintronic Devices

Advanced Science, EarlyView.
Ferroelectric Rashba semiconductors promise ultralow‐power devices but lack industry‐quality films. This work demonstrates CMOS‐compatible fabrication of high‐quality α‐GeTe(111) films via magnetron sputtering, enabled by a 5 nm Sb2Te3 seed layer. Structural and ferroelectric analyses show robust, switchable polarization comparable to MBE films, paving
Jules Lagrave, Nicolas Bernier, Thomas Jalabert, Yoann Brûlé, Damien Térébénec, Pierre Meilleur, Hervé Roussel, Jean‐Baptiste Dory, Oussama J. Mouawad, Thibault Chommaux, Cristian Mocuta, Dominique Thiaudière, Laurent Vila, Françoise Hippert, Pierre Noé   +14 more
wiley   +1 more source