Results 41 to 50 of about 19,018,396 (338)
The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley +1 more source
EXCITATION OF HARMONIC TEMPERATURE WAVES IN A SOLID SAMPLE OF MATERIAL WITH CONVECTIVE HEATING
Авіаційно-космічна техніка та технологія, 2019 The article discusses the method and means of exciting harmonic temperature waves in a solid sample material during convective heating, it is typical for the working conditions of heat-stressed assemblies and parts in power plants systems.
Виктор Васильевич Спесивцев +1 more
doaj +1 more source
Sample Preparation for Materials Scientists [PDF]
Microscopy and Microanalysis, 2009 Extended abstract of a paper presented at Microscopy and Microanalysis 2009 in Richmond, Virginia, USA, July 26 – July 30 ...
openaire +2 more sources
Geographic variation in walking activity in the red flour beetle Tribolium castaneum
Population 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
A resource of lipidomics and metabolomics data from individuals with undiagnosed diseases
Scientific Data, 2021 Measurement(s) Metabolomics • Lipidomics Technology Type(s) gas chromatography-mass spectrometry • Ultra High-performance Liquid Chromatography/Tandem Mass Spectrometry Factor Type(s) age group • sex Sample Characteristic - Organism Homo sapiens Sample ...
Jennifer E. Kyle +10 more
doaj +1 more source
Sampling the Whole Materials Space for Conventional Superconducting Materials
, 2023 We perform a large scale study of conventional superconducting materials using a machine-learning accelerated high-throughput workflow. We start by creating a comprehensive dataset of around 7000 electron-phonon calculations performed with reasonable convergence parameters.
Cerqueira, Tiago F. T. +2 more
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occumb: An R package for site occupancy modeling of eDNA metabarcoding data
Population 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
Population 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
Degradation of the State of a Ball Track at the ZP 6600
Management Systems in Production Engineering, 2017 The article deals with the examination of the state of the ball track of the heavy mining machine ZP6600/Z79. It gives results of material exams which were taken on given samples and describes the progress and results of the numerical computation of the ...
Klouda Petr +4 more
doaj +1 more source
Bulletin of Kharkiv National University of Internal Affairs, 2021 The article is focused on the procedure of sampling as a criminal procedural action necessary for the commissioning and carrying out molecular genetic expert examination in the divisions of the Expert Service of the Ministry of Internal Affairs, namely ...
S. O. Ziubrii
doaj +1 more source