Results 41 to 50 of about 972,735 (163)

Fator de condição gonadal, índice hepatossomático e recrutamento como indicadores do período de reprodução de Loricariichthys platymetopon (Osteichthyes, Loricariidae), bacia do rio Uruguai médio, sul do Brasil

open access: yes, 2002
The recruitment period of Locariichthys platymetopon (Isbrucker & Nijssen, 1979) was investigated. It has been found out, through the data analysis, that the gonadal condition factor is a good indicator of the reproductive period and that the ...
M. Querol, E. Querol, Nara Gomes
semanticscholar   +1 more source

Hacia una lingüística de la interacción mediática. Aproximación al diseño de la participación significativa medio-usuario desde el podcasting independiente

open access: yes, 2020
En 2004, Jose Antonio Gelado introdujo el podcasting en Espana tras un intenso periodo de experimentacion a partir del trabajo que los pioneros del medio habian desarrollado en Estados Unidos tan solo unos meses antes.
David García-Marín
semanticscholar   +1 more source

Seasonal shifts in network structure and species roles in a tropical island plant–flower visitor community Cambios estacionales en la estructura de la red de interacciones entre plantas y visitantes florales y en los roles de las especies en una comunidad insular tropical

open access: yesInsect Conservation and Diversity, EarlyView.
Constant visitation rates across the flowering season masked major shifts in plant and flower visitor interaction structure, specialization, species roles and trait‐driven patterns shaping interaction intensity. Plants and flower visitors changed ecological roles over time, with native flower visitors playing key roles in maintaining network cohesion ...
Alba Costa   +3 more
wiley   +1 more source

Estructuras comerciales romanas en el período pre-anibálico: una lectura crítica interdisciplinar del período medio repúblicano

open access: yesGerión, 2006
Traditionally we have considered that Rome, during the Mid-Republican age, had no structures to develop a market rule in the Mediterranean Sea. In this paper we try to analyse the remains the submarine archaeology has provided in the last years, so much ...
Juan Carlos Domínguez Pérez
doaj   +2 more sources

Distribución y tendencia de los fallecimientos en el medio hospitalario en España durante el periodo 1997-2003

open access: yes, 2006
Fundamento: El lugar en que se produce la muerte de una persona depende de circunstancias de naturaleza demografica, socioeconomica, cultural y asistencial El objetivo del estudio fue describir las variaciones en el porcentaje de muertes en hospitales ...
A. Jiménez-Puente   +2 more
semanticscholar   +1 more source

Revitalizing Traditional Tank Systems: Case Study Insights From Sri Lanka's Village Tank Cascade Systems for Climate Resilience and Water Governance

open access: yesWorld Water Policy, Volume 12, Issue 3, August 2026.
ABSTRACT Village tank cascade systems (VTCS) are a long‐established form of water management in Sri Lanka's dry zone. However, their role in groundwater recharge, climate adaptation, and water governance remains insufficiently recognized in policy and planning.
Ananthini Nanthakumaran   +1 more
wiley   +1 more source

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

Construção de um Índice de Qualidade de Emprego nas microrregiões do Rio Grande do Sul, 1990-2010

open access: yesRedes, 2015
Este trabalho tem por objetivo verificar a qualidade do emprego nas microrregiões do Estado do Rio Grande do Sul no período de 1990 a 2010. Para tanto, foram selecionadas três variáveis: a remuneração média dos trabalhadores, o grau de instrução e o ...
Daisy Catiane Schardosim Reck   +1 more
doaj   +1 more source

As concepções de ciência dos livros didáticos de química, dirigidos ao ensino médio, no tratamento da cinética química no período de 1929 a 2004

open access: yes, 2007
This text is a part of the work that was developed based on the chemical kinetic theme and the target was how the scientific knowledge in this subject was used for high school textbooks, identifying the possible ideas about science related to these books.
S. Martorano
semanticscholar   +1 more source

Resultados de médio e longo prazo do tratamento endovenoso de varizes com laser de diodo em 1940 nm: análise crítica e considerações técnicas

open access: yesJornal Vascular Brasileiro, 2017
Resumo Contexto Desde a introdução do laser endovenoso para tratamento das varizes, há uma busca pelo comprimento de onda ideal, capaz de produzir o maior dano seletivo possível com maior segurança e menor incidência de efeitos adversos.
Luiz Marcelo Aiello Viarengo   +4 more
semanticscholar   +1 more source

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