Results 51 to 60 of about 23,134,989 (378)

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

open access: yesPopulation Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

Methodology to Evaluate the Impact of Electric Vehicles on Electrical Networks Using Monte Carlo

open access: yesEnergies, 2021
In preparation for the electric mobility technological transition in Colombia, an impact assessment of the electric power system is required, considering the increasing loading that must be able to be managed in the future.
Daniel Betancur   +7 more
doaj   +1 more source

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

open access: yesPopulation Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

A two-stage optimization method for unmanned aerial vehicle inspection of an oil and gas pipeline network

open access: yesPetroleum Science, 2019
Oil and gas pipeline networks are a key link in the coordinated development of oil and gas both upstream and downstream. To improve the reliability and safety of the oil and gas pipeline network, inspections are implemented to minimize the risk of ...
Yamin Yan   +6 more
doaj   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

open access: yesPopulation Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva   +6 more
wiley   +1 more source

Distributed processing; distributed functions? [PDF]

open access: yesNeuroImage, 2012
After more than twenty years busily mapping the human brain, what have we learned from neuroimaging? This review (coda) considers this question from the point of view of structure-function relationships and the two cornerstones of functional neuroimaging; functional segregation and integration.
Peter T. Fox, Karl J. Friston
openaire   +3 more sources

Device for online monitoring of insulation faults in high-voltage switchgears

open access: yesInternational Journal of Distributed Sensor Networks, 2021
Partial discharges are the major cause of deterioration in the insulation characteristics of switchgears. Therefore, timely detection of partial discharge in switchgear and potential insulation faults is an urgent problem that needs to be addressed in ...
Jiajia Song, Jinbo Zhang, Xinnan Fan
doaj   +1 more source

Biosynthesis of Silver Nanoparticles from Duchesnea indica Extracts Using Different Solvents and Their Antibacterial Activity

open access: yesMicroorganisms, 2023
Silver nanoparticles (AgNPs) were synthesized using the whole plant of Duchesnea indica (DI) which was extracted in different solvents; the antimicrobial effects of the extract were investigated in this study.
Se-Min Kim   +6 more
doaj   +1 more source

On Wishart distribution [PDF]

open access: yes, 2010
This paper proposes a unified approach that enables the Wishart distribution to be studied simultaneously in the real, complex, quaternion and octonion cases.
Diaz-Garcia, Jose A.   +1 more
core  

Generalizing the Planck distribution

open access: yes, 2005
Along the lines of nonextensive statistical mechanics, based on the entropy $S_q = k(1- \sum_i p_i^q)/(q-1) (S_1=-k \sum_i p_i \ln p_i)$, and Beck-Cohen superstatistics, we heuristically generalize Planck's statistical law for the black-body radiation ...
Souza, Andre M. C., Tsallis, Constantino
core   +2 more sources

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