Results 21 to 30 of about 31,151 (149)

Pequenos grupos informais nas instituições: exercício da cidadania e da dimensão instituinte Small informal groups in institution: citizenship practices and ongoing processes of institutional development

Psico-USF, 2009
Este relatório de pesquisa apresenta um estudo desenvolvido na rede de grupos informais realizados no campus central da PUCRS. São considerados grupos informais os constituídos pelas necessidades, pelos desejos e/ou motivação de seus membros e não ...
Nedio Antonio Seminotti, Maria Lúcia Andreoli de Moraes, Flávia Moises Rocha   +2 more
doaj   +1 more source

Population and species neighbor identity impact trait–trait relationships and plant performance

Population Ecology, EarlyView.
We evaluated how populations and species identity influence plant performance and trait outcomes in mixtures, and assessed trait variation among populations of two forb species native to the western United States (Dieteria canescens and Heterotheca villosa) following three interaction treatments (single‐population monoculture, two‐population mixture ...
Alicia J. Foxx, Florian Fort, Andrea T. Kramer   +2 more
wiley   +1 more source

Motivating Citizens to Participate in Public Policymaking: Identification, Trust and Cost-Benefit Analyses

Journal of Social and Political Psychology, 2015
Under what conditions do citizens of nations and states comply with governmental requests to participate in public policymaking? Drawing on the dual pathway model of collective action (Stürmer & Simon, 2004) but with a focus on compliance with the status
Matteo Antonini, Michael A. Hogg, Lucia Mannetti, Barbara Barbieri, Joseph A. Wagoner   +4 more
doaj   +1 more source

Polyol-Mediated Synthesis of V₂O₅–WO₃/TiO₂ Catalysts for Low-Temperature Selective Catalytic Reduction with Ammonia

Nanomaterials, 2022
We demonstrated highly efficient selective catalytic reduction catalysts by adopting the polyol process, and the prepared catalysts exhibited a high nitrogen oxide (NOX) removal efficiency of 96% at 250 °C.
Min Seong Lee, Yeong Jun Choi, Su-Jeong Bak, Mingyu Son, Jeehoon Shin, Duck Hyun Lee   +5 more
doaj   +1 more source

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

Population Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier, Christophe Barbraud, Maxime Amy, Sabine Orlowski, Jean Hivert, Gabrielle Dicque, Matthieu Le Corre   +6 more
wiley   +1 more source

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

Uncovering the trimethylamine-producing bacteria of the human gut microbiota

Microbiome, 2017
Background Trimethylamine (TMA), produced by the gut microbiota from dietary quaternary amines (mainly choline and carnitine), is associated with atherosclerosis and severe cardiovascular disease.
Silke Rath, Benjamin Heidrich, Dietmar H. Pieper, Marius Vital   +3 more
doaj   +1 more source

Research on Grain Refinement of Sc and Zr Addition in an Al-Mg-Zn Alloy from Experiments and First-Principles Calculations

Metals, 2023
The effect of trace Sc and Zr on grain refinement of Al-5.0Mg-3.0Zn as-cast alloy was investigated by optical microscopy and scanning electron microscopy with EDS.
Tianyou Zhang, Lizhen Yan, Xiwu Li, Wei Xiao, Guanjun Gao, Zhihui Li, Yongan Zhang, Baiqing Xiong   +7 more
doaj   +1 more source

Network topology drives population temporal variability in experimental habitat networks

Population Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu, J. Angus Webb, William D. Bovill, Elise L. King   +3 more
wiley   +1 more source

Enhancement Effect of a Diamond Network on the Flow Boiling Heat Transfer Characteristics of a Diamond/Cu Heat Sink

Energies, 2023
The use of a micro heat sink is an effective means of solving the problem of high-power chip heat dissipation. Diamond/Cu composites exhibit high thermal conductivity and a linear thermal expansion coefficient that is compatible with semiconductor ...
Nan Wu, Mingmei Sun, Hong Guo, Zhongnan Xie, Shijie Du   +4 more
doaj   +1 more source