Results 11 to 20 of about 1,638,109 (182)

Soil CO2 emission of sugarcane fields as affected by topography Emissão de CO2 do solo sob cultivo de cana-de-açúcar em função da topografia

open access: yesScientia Agricola, 2009
The spatial and temporal variation of soil CO2 emission is influenced by several soil attributes related to CO2 production and its diffusion in the soil.
Liziane de Figueiredo Brito   +4 more
doaj   +1 more source

Temporal variation in phytoplankton community in a freshwater coastal lake of southern Brazil

open access: yesActa Limnologica Brasiliensia, 2013
AIM: The aim of the present study was to study the vertical variation in phytoplankton community in a subtropical coastal lake and to verify the temporal variation of this community following variation in temperature and dissolved nitrogen and phosphorus.
Denise Tonetta   +2 more
doaj   +1 more source

Variação temporal no desempenho em testes de memória em pacientes com doença vascular cerebral Temporal variation in memory tests performance in cerebral vascular disease patients

open access: yesPsicologia: Reflexão e Crítica, 2007
Buscando adequar a avaliação neuropsicológica à organização temporal do organismo humano, avaliou-se o desempenho em testes de memória em 12 pacientes pós Doença Vascular Cerebral e 12 indivíduos controle, de ambos os sexos, com idade de 45 a 65 anos ...
Tania Fernandes Campos   +3 more
doaj   +1 more source

Determining the high variability of pCO2 and pO2 in the littoral zone of a subtropical coastal lake

open access: yesActa Limnologica Brasiliensia, 2014
The aquatic metabolism comprises production and mineralization of organic matter through biological processes, such as primary production and respiration that can be estimated by gases concentration in the water column. AIM: The study aimed to assess the
Denise Tonetta   +2 more
doaj   +1 more source

Análise de metais e avaliação da citogenotoxicidade da água do Delta do Rio Jacuí, Rio Grande do Sul

open access: yesRevista Thema, 2023
O Delta do Rio Jacuí é impactado por atividades industriais, urbanas e agrícolas. Neste contexto, o objetivo do estudo foi avaliar a presença de metais e a citogenotoxicidade da água em dois pontos do Delta do Jacuí.
Luciano Basso da Silva   +4 more
doaj   +1 more source

Temporal variation in vegetative development of Caulerpa scalpelliformis (Chlorophyta) from Baleia beach, Ilha Grande bay (Rio de janeiro, brazil)

open access: yesBrazilian Journal of Oceanography, 2011
Caulerpa scalpelliformis grows on rocky and sandy bottoms at different depths in Jacuacanga Cove, Ilha Grande Bay, where it can form dense patches. The invasive behavior of this and other species of Caulerpa is well documented in the literature.
Marcelo Augusto Vasconcelos   +2 more
doaj   +1 more source

Monitoring studies should consider temporal variability to reveal relations between cyanobacterial abundance and environmental variables

open access: yesAnais da Academia Brasileira de Ciências, 2015
One of the main goals of monitoring cyanobacteria blooms in aquatic environments is to reveal the relationship between cyanobacterial abundance and environmental variables. Studies typically correlate data that were simultaneously sampled.
JULIANA WOJCIECHOWSKI, ANDRÉ A. PADIAL
doaj   +1 more source

Variação linguística em materiais didáticos de Português Língua Estrangeira (PLE)

open access: yesCalidoscópio, 2023
Neste artigo, analisamos atividades referentes à variação na codificação do sistema temporal (tempo/aspecto/modo) em dois cadernos de exercícios da coleção Bem-Vindo (Calles et al; Burim e Medrado, 2013).
Alexandra Araújo, Márluce Coan
doaj   +1 more source

Aquatic macrophyte community varies in urban reservoirs with different degrees of eutrophication

open access: yesActa Limnologica Brasiliensia, 2014
AIM: Investigate spatial and temporal variation in the aquatic macrophyte community in four urban reservoirs located in Curitiba metropolitan region, Brazil.
Suelen Cristina Alves da Silva   +3 more
doaj   +1 more source

Composition and diversity of the Chironomidae in subtropical streams: effects of environmental predictors and temporal analysis

open access: yesActa Limnologica Brasiliensia, 2014
AIMS: The aims of this study were (i) to evaluate the spatial and temporal distribution of chironomids in subtropical streams and (ii) to investigate the importance of environmental predictors in the distribution of this group.
Rozane Maria Restello   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy