Results 31 to 40 of about 23,348 (252)

Efeito do monocultivo de Pinus e da queima do campo nativo em atributos biológicos do solo no Planalto Sul Catarinense Effects of native pasture burning and Pinus monoculture on changes in soil biological attributes on the Southern Plateau of Santa Catarina - Brazil

Revista Brasileira de Ciência do Solo, 2005
O presente estudo objetivou avaliar o impacto da queima tradicional de campo nativo e do monocultivo de Pinus sp. em Lages (SC), no CO total do solo (COT), carbono da biomassa microbiana (CBM), respiração basal (C-CO2), quociente metabólico microbiano ...
Dilmar Baretta, Julio Cesar Pires Santos, Samuel Ribeiro Figueiredo, Osmar Klauberg-Filho   +3 more
doaj   +1 more source

Atributos biológicos do solo sob influência da cobertura vegetal e do sistema de manejo Soil biological attributes influenced by cover crops and management systems

Pesquisa Agropecuária Brasileira, 2007
O objetivo deste trabalho foi avaliar os efeitos de culturas de cobertura e dos sistemas plantio direto (PD) e convencional (PC) sobre indicadores biológicos do solo, cultivado com feijoeiro-comum, no inverno, sob irrigação.
Mozaniel Batista da Silva, Huberto José Kliemann, Pedro Marques da Silveira, Anna Cristina Lanna   +3 more
doaj   +1 more source

Efeito do sistema de plantio e doses do nicosulfuron sobre a atividade microbiana do solo Effect of planting system and nicosulfuron doses on soil microbial activity

Planta Daninha, 2011
Objetivou-se com este trabalho avaliar o efeito do atrazine em mistura com nicosulfuron sobre a atividade microbiológica do solo em sistema de cultivo convencional ou semeadura direta.
G.N Camelo, J.B Santos, T.M Lazari, T.A Oliveira, E.A Santos, E.A Ferreira, G.A.M Pereira   +6 more
doaj   +1 more source

Contamination and Soil Biological Properties in the Serra Pelada Mine - Amazonia, Brazil

Revista Brasileira de Ciência do Solo, 2018
Discovered in 1980 and unleashed an utter gold rush of the modern era, Serra Pelada was the largest open-air mine in Brazil. About 80,000 gold prospectors worked there until 1984, when the gold pits were flooded. The environmental impact caused by mining
Renato Alves Teixeira, Antonio Rodrigues Fernandes, José Roberto Ferreira, Steel Silva Vasconcelos, Anderson Martins de Souza Braz   +4 more
doaj   +1 more source

Imaging‐Guided Live Single‐Cell Lipid Profiling of Leader and Follower Cellsduring Collective Migration of Triple‐Negative Breast Cancer Cells

Advanced Science, EarlyView.
Integrated single‐cell mass spectrometry reveals distinct lipidomic signatures that differentiate leader and follower phenotypes in migratory breast cancer cells. Phenotype‐specific alterations across various lipid classes, including fatty acids and phosphatidylcholines, underpin functional heterogeneity.
Xiaoyue Huang, Judit González Riera, Mai Nguyen, Jeremy Broekhuis, Sylvia E. Le Dévédec, Ahmed Ali, Thomas Hankemeier   +6 more
wiley   +1 more source

Carbono orgânico e biomassa microbiana do solo em plantios de Acacia mangium no Cerrado de Roraima Soil organic carbon and soil microbial biomass in Acacia mangium plantation in the Savanna of Roraima

Acta Amazonica, 2010
O objetivo do estudo foi avaliar os efeitos de plantios de Acacia mangium, localizados no cerrado em Roraima, sobre o carbono orgânico e biomassa microbiana do solo.
Sara Magda Oliveira Simões, Jerri Édson Zilli, Mirian Cristina Gomes Costa, Hélio Tonini, Fabiano de Carvalho Balieiro   +4 more
doaj   +1 more source

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates

The Anatomical Record, EarlyView.
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar, Cristián Gutiérrez‐Ibáñez, Hady George, Thomas R. Holtz Jr., Darren Naish, Grant R. Hurlburt   +5 more
wiley   +1 more source

Impacto do glyphosate associado a inseticida e fungicida na atividade microbiana e no potencial de solubilização de fosfato em solo cultivado com soja Roundup Ready® Impact of glyphosate associated with insecticide and fungicide application on the microbial activity and potential phosphate solubilization in soil cultivated with Roundup Ready® soybean

Planta Daninha, 2009
Objetivou-se com este trabalho avaliar a atividade microbiana e o potencial de solubilização de fosfato inorgânico em solos cultivados com soja sob diferentes manejos fitossanitários.
M.R. Reis, A.A. Silva, M.A.M. Freitas, J.L. Pereira, M.D. Costa, M.C. Picanço, E.A. Ferreira, A.F. Belo, A.T.C.P. Coelho, G.R. Silva   +9 more
doaj   +1 more source

Liming and Nitrogen Fertilization Effects on Soil Microbial Community in Long Term No-till [PDF]

Brazilian Archives of Biology and Technology, 2020
Soil management influences organic matter decomposition rates as well soil microbial community functional behavior. No-till (NT) is the most used management system by farmers due to its conservation practices and high productivity.
Carlos Henrique Antunes, Rafael Mazer Etto, Eduardo Fávero Caires, Angelo Rafael Bini, Daniel Ruiz Potma Gonçalves, Salomé Urrea-Valencia, Carolina Weigert Galvão   +6 more
doaj   +1 more source

Autoantibodies to Joint‐Related Peptides Are Associated With Onset of Rheumatoid Arthritis in Presymptomatic Seronegative Individuals

Arthritis &Rheumatology, EarlyView.
Objective To identify autoantibodies in presymptomatic individuals that associate with the onset of rheumatoid arthritis (RA) and to distinguish early RA from osteoarthritis (OA), particularly in individuals lacking classic RA serologic markers. Methods We analyzed serum and plasma from three cohorts: presymptomatic individuals who later developed RA ...
Outi Sareila, Linda Johansson, Anders Lundquist, Monica Leu Agelii, Lei Cheng, Yibo He, Erik Lönnblom, Maria Andersson, Jan Kihlberg, Anders Esberg, Inger Gjertsson, Rikard Holmdahl, Solbritt Rantapää‐Dahlqvist   +12 more
wiley   +1 more source