Results 21 to 30 of about 3,228,711 (305)

INFLUENCE OF HYDROLOGICAL CYCLE ON THE COMPOSITION AND STRUCTURE OF FISH ASSEMBLAGES IN AN IGAPÓ FOREST, AMAZONAS, BRAZIL

open access: yesBoletim do Instituto de Pesca, 2019
The igapó forests are used as shelter and feeding by several species of fish from the Amazon. In order to increase knowledge about the fish fauna and to infer their distributional pattern within the igapó forest, we sought to describe and compare the ...
Sara de Castro Loebens   +3 more
doaj   +1 more source

Machine learning techniques in estimation of eggplant crop evapotranspiration

open access: yesApplied Water Science, 2023
This study predicted the daily evapotranspiration of eggplant (Solanum melongena L.) under full and deficit irrigation in the Bafra district of Samsun province, Turkey, using machine learning methods.
Bilal Cemek   +4 more
doaj   +1 more source

Social disparities in heart disease risk and survivor bias among autoworkers: an examination based on survival models and g-estimation. [PDF]

open access: yes, 2014
ObjectivesTo examine gender and racial disparities in ischaemic heart disease (IHD) mortality related to metalworking fluid exposures and in the healthy worker survivor effect.MethodsA cohort of white and black men and women autoworkers in the USA was ...
Costello, Sadie   +3 more
core   +1 more source

Future rice farming threatened by drought in the Lower Mekong Basin

open access: yesScientific Reports, 2021
The Lower Mekong River basin (LMB) has experienced droughts in recent decades, causing detrimental economic losses and food security conundrums. This study quantified the impact of climate change on drought, and rainfed rice production in the LMB.
Hyunwoo Kang   +3 more
doaj   +1 more source

Applying a Hand-Held Laser Scanner to Monitoring Gully Erosion: Workflow and Evaluation

open access: yesRemote Sensing, 2021
Detailed understanding of gully erosion processes is essential for monitoring gully remediation and requires fine-scale monitoring. Hand-held laser scanning systems (HLS) enable rapid ground-based data acquisition at centimeter precision and ranges of 10–
Anne Kinsey-Henderson   +4 more
doaj   +1 more source

Actinella species (Bacillariophyta) from an Amazon black water floodplain lake (Amazonas - Brazil) Espécies de Actinella (Bacillariophyta) de um lago de inundação amazônico de águas pretas (Amazonas - Brasil)

open access: yesActa Amazonica, 2010
The genus Actinella Lewis was studied using planktonic samples from a black water floodplain lake in Central Amazon region. For species identification the taxa were morphological and morphometricaly analyzed on base in light microscope (LM) and scanning ...
Sérgio Melo   +2 more
doaj   +1 more source

Pinnularia (Bacillariophyta) do curso inferior do rio Negro, Amazonas, Brasil: taxonomia e distribuição temporal Pinnularia (Bacillariophyta) from the lower course of Negro river (Amazon, Brazil): taxonomy and temporal distribution

open access: yesActa Amazonica, 2012
Este estudo relata a taxonomia e distribuição temporal do gênero Pinnularia ocorrente no curso inferior do rio Negro (03º02'46,5"S e 60º15'13,1"W) ao longo de um ciclo anual.
Andreia Cavalcante Pereira   +2 more
doaj   +1 more source

A ResNet attention model for classifying mosquitoes from wing-beating sounds

open access: yesScientific Reports, 2022
Mosquitoes are vectors of numerous deadly diseases, and mosquito classification task is vital for their control programs. To ease manual labor and time-consuming classification tasks, numerous image-based machine-learning (ML) models have been developed ...
Xutong Wei   +2 more
doaj   +1 more source

Biofunctionalized sulfur nanoparticles alleviate salinity-induced physio-oxidative damage by maintaining ionic homeostasis and modulating rhizosphere bacterial community in tomato

open access: yesPlant Nano Biology
Soil salinization reduces crop yields and threatens agricultural productivity worldwide. This study investigated the potential of biogenically synthesized sulfur nanoparticles (SNPs) using neem leaf extract to mitigate salinity stress in tomato (Solanum ...
Natasha Manzoor   +4 more
doaj   +1 more source

Black polypropylene non-woven textile as mulch in organic farming [PDF]

open access: yes, 2009
Black polypropylene textile was used in potatoes by organic agriculture and it had positive effect on soil temperature (in the depth of 100 mmJ. Slightly higher soil temperatures under black polypropylene mulch in the vegetation oeriod after planting had
Dvorak, Petr   +4 more
core  

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