Results 31 to 40 of about 10,179 (185)

Erosividade da chuva e erodibilidade de Cambissolo e Latossolo na região de Lavras, sul de Minas Gerais Rainfall erosivity and erodibility of Cambisol (Inceptisol) and Latosol (Oxisol) in the region of Lavras, Southern Minas Gerais State, Brazil

open access: yesRevista Brasileira de Ciência do Solo, 2009
No Brasil, ainda são relativamente poucos os estudos envolvendo erodibilidade do solo, principalmente Cambissolos, dada a morosidade na obtenção dos resultados de experimentos com chuva natural.
Antonio Marcos da Silva   +4 more
doaj   +1 more source

Variáveis de impacto no sequenciamento de lavra

open access: yesResearch, Society and Development, 2022
O planejamento de mina é desenvolvido considerando variáveis econômicas, teores, litologia, posição espacial. Estas variáveis são utilizadas para determinar o limite final de cava e sequenciamento das operações. Normalmente são amostradas exaustivamente somente as variáveis relacionadas ao teor.
Barbara Isabela Silva Campos   +2 more
openaire   +1 more source

The effect of light supplementation on the changes in outer and inner fruit quality of different Selenicereus spp. cultivars

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Selenicereus spp., belonging to the Cactaceae family, produces pitaya, a fruit recognized for its exotic appearance and rich phytochemical composition. In regions with shorter photoperiods, flowering and fruit development are limited, making light supplementation a promising strategy.
Luíz Guilherme Malaquias da Silva   +13 more
wiley   +1 more source

Conflitos do uso do fogo em Parques

open access: yesBiodiversidade Brasileira, 2019
O uso do fogo no manejo de ecossistemas naturais é um dos principais motivos de conflitos entre a gestão de áreas protegidas e comunidades locais. Esses conflitos influenciam na incidência de incêndios acidentais pelas queimadas não autorizadas e mal ...
Wanderley Jorge da Silveira Junior   +5 more
doaj   +3 more sources

Novos hospedeiros para Hemencyrtus herbertii Ashmead (Hymenoptera: Encyrtidae) coletados em Lavras, Minas Gerais News hosts for Hemencyrtus herbertii Ashmead (Hymenoptera: Encyrtidae) collected in Lavras, Minas Gerais

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2006
This study verified the host species of the parasitoid Hemencyrtus herbertii Ashmead (Hymenoptera: Encyrtidae), in Lavras, Minas Gerais, Brazil. The pupae were obtained by the flotation method.
C.H. Marchiori   +4 more
doaj   +1 more source

Sinningia pampeana sp. nov. (Gesneriaceae) from the Pampa's rocky outcrops in southern Brazil and Uruguay

open access: yesNordic Journal of Botany, EarlyView.
Sinningia pampeana is a new rupicolous species from the rocky outcrops of the Pampa biome in southern Brazil and Uruguay. Morphological analyses based on herbarium material, field observations, and detailed illustrations support its recognition as a distinct species from Sinningia sellovii.
Gabriel Emiliano Ferreira   +4 more
wiley   +1 more source

Design and optoelectronic profiling of a semicrystalline thiophene–phenylene copolymer for advanced organic electronics

open access: yesPolymer International, EarlyView.
A new semicrystalline copolymer, PTBT‐3OBu, was synthesized. Intramolecular S···O conformational locks induce high backbone planarity, promoting strong interchain coupling and molecular ordering in thin films, seen in an optical red shift. This synergy between planarity and semicrystalline morphology is promising for photovoltaic and electrochromic ...
Sandra Lúcia Nogueira   +7 more
wiley   +1 more source

Rendimento e composição química da forragem de sorgo em diferentes épocas de semeadura Yield and chemical composition of forage sorghum at different sowing dates

open access: yesCiência e Agrotecnologia, 2011
Com o objetivo de avaliar o efeito de épocas de semeadura do híbrido de sorgo silageiro Volumax, foi conduzido um experimento no Campus da Universidade Federal de Lavras, em Lavras/MG, em dois anos agrícolas 2006/07 e 2007/08.
Hélio Peres de Alcântara   +4 more
doaj   +1 more source

Open letter: Brazil at a crossroads—Protecting peatlands is essential for post‐COP30 climate leadership

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
This Open Letter highlights peatlands as critical yet overlooked ecosystems in Brazil's climate and biodiversity policies. By translating scientific evidence into clear, actionable priorities for policymakers, it supports more accurate climate reporting, effective mitigation strategies, and improved land‐use governance.
Suelma Ribeiro Silva   +52 more
wiley   +1 more source

Typhlomyrmex lavra

open access: yes
Typhlomyrmex lavra (Lattke, 2002) Materials Type status: Other material. Occurrence: recordNumber: WAS 116; recordedBy: M. M. Silva, A. J. Mayhé Nunes, J. C. Santos, I. R. S. Cordeiro; individualCount: 1; sex: female; lifeStage: adult; occurrenceID: F19903AE-AF25-5BAA-95A0-942DC533B0BD; Taxon: genus: Typhlomyrmex; specificEpithet: lavra; taxonRank ...
Silva, Márcio Morais   +2 more
openaire   +1 more source

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