Results 31 to 40 of about 2,312 (176)

Fontes censitárias brasileiras e posse de cativos na década de 1870

open access: yesRevista de Indias, 2011
Existe un conjunto expresivo de fuentes de carácter censal para el estudio de la esclavitud en la década de 1870 en Brasil. Estas fuentes derivan, principalmente, de la matrícula de los esclavos determinada por la Ley de Vientre Libre de 1871.
Renato Leite Marcondes
doaj   +1 more source

Spatiotemporal Dynamics of Non‐Ecological Speciation in Rubyspot Damselflies (Hetaerina spp.)

open access: yesMolecular Ecology, Volume 34, Issue 12, June 2025.
ABSTRACT Non‐ecological speciation is a common mode of speciation, which occurs when allopatric lineages diverge in the absence of pronounced ecological differences. Yet, relative to other speciation mechanisms, non‐ecological speciation remains understudied.
C. Patterson   +8 more
wiley   +1 more source

Delimitacja strefy wpływów demograficznych na przykładzie byłych miast wojewódzkich w Polsce

open access: yesSpace, Society, Economy, 2018
W artykule dokonano delimitacji stref bezpośredniego wpływu demograficznego (SWD) miasta ‐ rdzenia na obszary otaczające. Zaproponowaną metodę delimitacji zaprezentowano na przykładzie byłych miast wojewódzkich, które obecnie doświadczają dużych strat ...
Wioletta Szymańska
doaj   +1 more source

Reframing the Relationship Between Fertility and Education in Adolescence: 60 Years of Evidence From Latin America

open access: yesPopulation and Development Review, Volume 51, Issue 2, Page 656-701, June 2025.
Abstract It is a demographic puzzle that Latin America and the Caribbean's high levels of adolescent fertility have persisted over the course of its dramatic fertility transitions and schooling expansions. These phenomena usually occur alongside postponements to entry into motherhood.
Ann Garbett   +3 more
wiley   +1 more source

La diversidad en la composición demográfica del recurso humano en América Latina.

open access: yesRevista Finanzas y Política Económica, 2010
En el mundo en general, y en América Latina en particular, conviene profundizar el análisis de organizaciones en función de la composición demográfica.
José Luis Benavides Passos
doaj   +2 more sources

Remove saplings early: Cost‐effective strategies to contain tree invasions and prevent their impacts

open access: yesJournal of Applied Ecology, Volume 62, Issue 3, Page 661-676, March 2025.
Our highest‐ranking strategies represent management actions to start implementing in the field as part of an adaptive management plan that iteratively evaluates the validity of our simulation model and updates the management recommendations. Our study can be applied to guide management of invasive pines and replicated with any invasive woody species ...
Jaime Moyano   +7 more
wiley   +1 more source

Between “Storm” and “Privilege”: The Unequal Impact of Online Learning In the Pandemic and its Consequences Among Romanian Graduates

open access: yesEuropean Journal of Education, Volume 60, Issue 1, March 2025.
ABSTRACT The COVID‐19 pandemic impacted the lives of students around the world, forcing them to study remotely through online learning. This article uses 60 in‐depth interviews with students from four Romanian universities (Iasi, Galati, Brasov and Cluj‐Napoca) who had recently completed 3‐year degrees to analyse the impact of remote learning on the ...
Silvia Marcu
wiley   +1 more source

Broń „D” jako zagrożenie asymetryczne

open access: yesWiedza Obronna, 2018
We współczesnym świecie zagrożenia asymetryczne odgrywają rosnącą rolę w konfliktach zbrojnych. Prowadzi to do zacierania się granic między wojna i nie-wojną, a także żołnierzami i nie-żołnierzami, bronią i narzędziami politycznymi.
Witold Repetowicz
doaj   +1 more source

Assessing population viability and management strategies for species recovery of the critically endangered Puerto Rican parrot

open access: yesAnimal Conservation, Volume 28, Issue 1, Page 104-118, February 2025.
Recovery of endangered species is challenging, especially when it involves reintroduction and dynamic environmental conditions. We developed a population viability analysis (PVA) for the critically endangered Puerto Rican parrot to evaluate current status and potential future management strategies.
L. J. Faust   +8 more
wiley   +1 more source

Wpływ kryzysu gospodarczego na sytuację demograficzną Ukrainy

open access: yesPrace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego, 2011
Ukraine is an example of huge social and economic costs resulting from the deep economic crisis related to the introduction of free market economy mechanisms.
Renata Rettinger
doaj   +1 more source

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