Results 11 to 20 of about 39,538 (50)

Hybrid Genetic Algorithm−Based BP Neural Network Models Optimize Estimation Performance of Reference Crop Evapotranspiration in China

open access: yesApplied Sciences, 2022
Precise estimation of reference evapotranspiration (ET0) is of significant importance in hydrologic processes. In this study, a genetic algorithm (GA) optimized back propagation (BP) neural network model was developed to estimate ET0 using different ...
Anzhen Qin, Zhilong Fan, Liuzeng Zhang
doaj   +1 more source

Landscape parameters explain the distribution and abundance of Episyrphus balteatus (Diptera: Syrphidae)

open access: yesEuropean Journal of Entomology, 2005
We studied the importance of forest structure (shape, edge length and orientation) and the crop mosaic (percentage of crops in the total land cover, within 100 and 2000 m from the forests) to the dynamics of an aphidophagous hoverfly Episyrphus balteatus.
Jean-Pierre SARTHOU   +4 more
doaj   +1 more source

Weight Changes in Bali Cattle During Lactation at Different Seasons in the Cattle-Oil Palm Production System

open access: yesJurnal Sain Peternakan Indonesia, 2023
The season impacts livestock productivity and cattle kept in grazing production systems in tropical conditions. This research aims to determine the effect of season on the weight changes of Bali cows and calves on oil palm plantations. This research used
Hamdani Maulana   +5 more
doaj   +1 more source

Microclimate without shade and silvopastoral system during summer and winter - doi: 10.4025/actascianimsci.v35i1.15155

open access: yesActa Scientiarum: Animal Sciences, 2012
This study evaluated the microclimate in a system without shade (WS) and in a silvopastoral system (SP) with eucalyptus during summer and winter, by measuring the air temperature (Ta), black globe temperature (Tg), relative humidity (RH), wind speed (Ws),
Marcio Antonio Baliscei   +5 more
doaj   +1 more source

Here comes the sun: music features of popular songs reflect prevailing weather conditions

open access: yesRoyal Society Open Science, 2023
We examine associations between prevailing weather conditions and music features in all available songs that reached the United Kingdom weekly top charts throughout a 67-year period (1953–2019), comprising 23 859 unique entries.
Manuel Anglada-Tort   +3 more
doaj   +1 more source

Mesospheric Ozone Depletion Depending on Different Levels of Geomagnetic Disturbances and Seasons

open access: yesAtmosphere, 2023
Energetic electron precipitation (EEP) into the atmosphere are considered to play an important role in the natural forcing of the ozone variability and dynamics of the middle atmosphere during magnetospheric and geomagnetic disturbances.
Irina Mironova   +2 more
doaj   +1 more source

Revisiting the “Christmas Holiday Effect” in the Southern Hemisphere

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundA “Christmas holiday effect” showing elevated cardiovascular mortality over the Christmas holidays (December 25 to January 7) was demonstrated previously in study from the United States.
Josh Knight   +4 more
doaj   +1 more source

Climatic and regional antibiotic resistance patterns of Staphylococcus aureus in South African dairy herds

open access: yesOnderstepoort Journal of Veterinary Research, 2019
South Africa is a large country of approximately 1.22 million km2, made up of nine provinces with three climatic zones. Farming in the country is mostly defined by regional differences. Of the different organisms isolated from milk samples of dairy cows,
Joanne Karzis   +4 more
doaj   +1 more source

Yearly growth and metabolic changes in earthen pond-cultured meagre Argyrosomus regius

open access: yesScientia Marina, 2014
Metabolic modifications associated with natural environmental conditions were assessed in the meagre Argyrosomus regius cultured in earthen ponds under natural photoperiod and temperature. Juvenile specimens (90-100 g initial weight) were sampled (plasma,
Luis Vargas-Chacoff   +4 more
doaj   +1 more source

Seasonal Association of Immune Thrombocytopenia in Adults

open access: yesBalkan Medical Journal, 2015
Background: Immune thrombocytopenia (ITP) is an autoimmune disorder. It is characterized by thrombocytopenia due to thrombocyte destruction mediated by autoantibodies; however, cytotoxic and defective regulatory T-lymphocytes play an important role in ...
Anıl Tombak   +9 more
doaj   +1 more source

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