Results 31 to 40 of about 559,498 (263)
A brief guide to sampling in educational settings [PDF]
Tutorials in Quantitative Methods for Psychology, 2021 This tutorial gives an overview of sampling techniques commonly used in the field of education such as simple randomized sampling, stratification methods and (multistage) cluster randomized sampling.
George, Ann Cathrice
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Life, 2023 Cryopreservation is one way to preserve rare, endangered species. However, during the cryopreservation process, plant cells undergo considerable stress, which may lead to cell death.
Ekaterina Sergeevna Osipova +4 more
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Mesoscale variability of the Mexican Tropical Pacific using TOPEX and SeaWiFS data
Ciencias Marinas, 2006 The Mexican Tropical Pacific has oligotrophic characteristics; however, it sustains an abundant biodiversity, mainly because of upwelling promoted by its relatively shallow thermocline, strong winds and mesoscale eddies.
J López-Calderón +5 more
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Український соціум, 2021 The article contains the results of a study on modelling new communities in rural areas of Ukraine. Modelling considers both the possibility of modernization of archetypes and archaization of the individual imaginary. The research methodology is based on
Lozynska T. M.
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Allocation Constraints in Stratification [PDF]
Communications in Statistics - Simulation and Computation, 2008 When a finite population is to be stratified, one of constraints in stratification is that sample sizes from strata may not be greater than the corresponding strata sizes and may not be smaller than two. There are several ways of treating this allocation constraint, each providing an alternative approach to stratification. In the paper it is shown that
Marcin Kozak, Pawel Jankowski
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Frontiers in Marine Science, 2023 Modern research methods enable unfolding the structure of the water column with higher resolution than ever, revealing the importance of submesoscale. Submesoscale processes have intermediate space and time scales of <5 km and a few days in the Baltic
Kai Salm, Taavi Liblik, Urmas Lips
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THE COMPLEXITY OF LOCAL STRATIFICATION [PDF]
Fundamenta Informaticae, 1994 The class of locally stratified logic programs is shown to be Pi-1-1 complete by the construction of a reducibility of the class of infinitely branching nondeterministic finite register machines.
Cholak, Peter, Blair, Howard A.
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International Journal of Adolescence and YouthGrounded in a socio-ecological perspective, this study examines how peer victimization experiences during the middle-to-high school transition relate to adolescents’ sense of school belonging and whether support from teachers, peers, and family moderates
Katarína Aslan, Aleš Kudrnáč
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The transition to adulthood in Europe at the intersection of gender and parental socioeconomic status [PDF]
Demographic ResearchBACKGROUND: In Europe, the transition to adulthood has been steadily prolonged. Comparative studies have not addressed in detail the role of parental socioeconomic status (SES) and gender in the postponement of events linked to the transition to ...
Valeria Ferraretto, Agnese Vitali
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Family Structure Stability and Transitions, Parental Involvement, and Educational Outcomes
Social Sciences, 2020 The family environments children live in have profound effects on the skills, resources, and attitudes those children bring to school. Researchers studying family structure have found that children who live with two married, opposite-sex, biological ...
Shana L. Pribesh +4 more
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