Results 41 to 50 of about 99,234 (227)

Social mobility in Portugal (1860–1960): operative issues and trends [PDF]

, 2009
This article presents the results of a study of social mobility in Portugal from the 1860s to the 1960s. Four distinct social contexts were examined by reference to selected criteria, and marriage records were used as the source for data collection and ...
Fonseca, Helder Adegar, Guimarães, Paulo Eduardo   +1 more
core   +1 more source

Land Cover and Hydrology Regulate Riverine Carbon Emissions From Subarctic Catchments

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 1, January 2026.
Abstract Streams transport carbon (C) and nutrients across the terrestrial‐aquatic interface and are significant sources of methane (CH4) and carbon dioxide (CO2) to the atmosphere. Climate‐induced changes in vegetation and hydrology increase the export of dissolved organic carbon (DOC) from terrestrial to aquatic ecosystems, but the impact of these ...
T. Saarela, C. Palacin‐Lizarbe, W. Hashmi, L. Kohl, M. E. Marushchak, H. M. P. Siljanen, X. Zhu, F. Berninger, J. Pumpanen   +8 more
wiley   +1 more source

Chlorinated drinking water for lightweight laying hens

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
The study aimed to evaluate the effect of different levels of chlorine in drinking water of laying hens on zootechnical performance, eggs shell quality, hemogasometry levels and calcium content in tibia.
A.F. Schneider, D.S. Almeida, A.N. Moraes, L.C.A. Picinin, V. Oliveira, C.E. Gewehr   +5 more
doaj   +1 more source

ESTUDOS FITOQUÍMICOS PRELIMINARES EM ESPÉCIES FLORESTAIS DO PARQUE ESTADUAL DO MORRO DO DIABO, ESTADO DE SÃO PAULO

Revista do Instituto Florestal, 1990
Efetuou-se estudos fitoquímicos na casca e lenho de 31 espécies florestais, com a fi­nalidade de se conhecer sua composição química. [...]
Massako Nakaoka Sakita, Maria Isabel Vallilo   +1 more
doaj   +1 more source

Produção, teor e quantidade acumulada de nutrientes em rabanete cultivado em diferentes substratos. [PDF]

, 2019
O objetivo deste trabalho foi avaliar a produção, teor e quantidade acumulada de nutrientes em rabanete nos substratos areia, fibra de casca de coco (fcc) e mistura de areia com fibra de casca de coco.Resumo ...
ALBUQUERQUE NETO, A. A. R., ALBUQUERQUE, T. C. S. de, GOIS, B. C. F., SILANI, I. S. V.   +3 more
core  

Phylogenomic insights into helmet evolution in neotropical treehoppers (Hemiptera: Membracidae): Conserved morphological complexity across five subfamilies

Systematic Entomology, Volume 51, Issue 1, January‐March 2026.
Phylogenomic analyses of 2539 nuclear loci reveal robust relationships among major Membracidae lineages. Helmet shape complexity shows strong phylogenetic conservatism across genera, tribes and subfamilies. Pronotal modularity evolves across lineages, highlighting the developmental diversity of treehopper morphologies. Abstract We utilized genomic data
Ali Milanca Gutiérrez Aguilar, Esteban Alexis Vera Ortiz, Jorge Adilson Pinedo Escatel, Daniel Piñero, Marisol De‐la‐Mora Curiel   +4 more
wiley   +1 more source

Morphoanatomical characterization and chemical study of the internal portion of the stem bark of Sambucus australis Cham. & Schltdl

Revista Brasileira de Plantas Medicinais, 2016
The internal part of the stem bark of this species is used to produce a homemade ointment in some regions of the state of Rio Grande do Sul. The purpose of this study is to characterize the morphoanatomy and identify the compounds present in the internal
G.C. ALERICO, M. VIGNOLI-SILVA, V.R. LANDO   +2 more
doaj   +1 more source

Eficiência do 1-MCP sobre a manutenção da firmeza de frutos e cubos de polpa de manga Tommy Atkins produzidas no Vale do São Francisco. [PDF]

, 2014
O objetivo do trabalho foi avaliar o efeito do 1-MCP sobre a manutenção da firmeza de polpa de mangas inteiras com casca e sobre cubos de polpa de manga sem ...
AMARANTE, C. V. T. do, COLDEBELLA, M. C., FREITAS, S. T. de   +2 more
core  

Ecological function over evolutionary legacy: The limited role of shared evolutionary history in shaping modern frugivory interactions

Functional Ecology, Volume 39, Issue 12, Page 3688-3703, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Frugivory, encompassing interactions between vertebrates and plants that range from mutualistic to antagonistic, drives seed dispersal and underpins the structure and resilience of tropical ecosystems.
Lisieux Fuzessy, Miguel Verdú, Marco Aurelio Pizo   +2 more
wiley   +1 more source

SWARTZIA (LEGUMINOSAE, PAPILIONOIDEAE, SWARTZIEAE S.L.) NA RESERVA NATURAL DA COMPANHIA VALE DO RIO DOCE, LINHARES, ES, BRASIL

Rodriguésia
RESUMO Este trabalho consiste da taxonomia, com o auxílio de observações de campo dos táxons, de Swartzia na Reserva Natural da Companhia Vale do Rio Doce.
Vidal de Freitas Mansano, Ana Maria Goulart de Azevedo Tozzi   +1 more
doaj   +1 more source