Results 11 to 20 of about 536 (134)

Sex‐Specific Atlantic Salmon Upstream Passage and Fallback at a Natural Cascade After Dam Removal

Fisheries Management and Ecology, EarlyView.
ABSTRACT In the Boquet River (NY, USA) a low‐head dam set above a ~200‐m bedrock cascade was removed in 2015. We used radio‐telemetry to assess landlocked Atlantic salmon passage at the remaining cascade (2020, 2022). Across years, 52% of males (13/25) attempted cascade passage whereas females made no discernable attempts (0/11).
Kurt C. Heim, Jonah L. Withers, William R. Ardren, Laurie A. Earley, David Minkoff, Theodore Castro‐Santos   +5 more
wiley   +1 more source

Designing Integrated Policies for the Twin Transition: Challenges and Tradeoffs

Policy Studies Journal, EarlyView.
ABSTRACT Democratic governance faces the intertwined imperatives of managing the transformative risks and opportunities of digitalization, particularly stemming from artificial intelligence (AI), while achieving environmental sustainability within planetary boundaries.
Martino Maggetti
wiley   +1 more source

Environmental Justice in the Brazilian Coastal Food Systems: Policies, Institutions, and Knowledges on Small‐Scale Fishers and Energy Development

World Food Policy, Volume 12, Issue 2, November 2026.
ABSTRACT This study explores environmental justice issues in coastal food systems, focusing on conflicts between small‐scale fisheries and the energy sector due to differing goals in managing food and energy sources. It does so by examining the interdependence between institutions, policies, and different types of knowledge; key elements in building ...
Mateus Henrique Amaral, Lira Luz Benites Lazaro, Rosie Day, Lindsay C. Stringer, Leandra Regina Gonçalves, Aline Martins de Carvalho, Leandro Luiz Giatti   +6 more
wiley   +1 more source

Balance emergético en la evaluación de emprendimientos rurales. Estudio de caso: economía semicampesina en Sogamoso, Boyacá

Inventum Ingeniería, Tecnología e Investigación, 2011
Convencionalmente, la determinación de viabilidad de un proyecto se basa en los resultados de un balance financiero, una metodología que ha justificado la necesidad de modernización de la economía campesina, dados sus menores rendimientos monetarios ...
Adriana María Chaparro A.
doaj   +1 more source

From Hierarchical Capitalism to Developmental Governance: The Emergence of Concerted Skills Formation in Middle‐Income Countries

Regulation &Governance, Volume 20, Issue 3, Page 1005-1024, July 2026.
ABSTRACT Skills formation is a pressing issue for middle‐income countries given the pace of technological change. In Latin America, scholars point to the hierarchical type of capitalism and its segmentalist skills formation system as the main roadblocks to exiting the middle‐income trap.
Aldo Madariaga, Mariana Rangel‐Padilla
wiley   +1 more source

Factores nutricionales que interfieren en el desempeño reproductivo de la hembra bovina

Revista Colombiana de Ciencia Animal Recia, 2012
La nutrición es el principal factor que influye en el desempeño reproductivo en mamíferos. Las funciones reproductivas como ciclicidad estral y el inicio de la gestación son funciones de escasa prioridad dentro de la escala de direccionamiento de ...
YURY TATIANA GRANJA, S., JEFFERSON CERQUERA, G, OMAR FERNANDEZ, B   +2 more
doaj   +1 more source

How vulnerable are amphibians to climate change? A mechanistic perspective

Functional Ecology, Volume 40, Issue 6, Page 1550-1560, June 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Amphibians are frequently identified as highly vulnerable to climate change, yet the mechanisms driving this sensitivity remain uncertain. Approaches that explicitly link physiological mechanisms to environmental variation provide powerful tools for forecasting climate ...
Eric A. Riddell, David R. Adams, Molly C. Womack   +2 more
wiley   +1 more source

Efecto del balance energético negativo y niveles de insulina plasmática en sangre en desarrollo de estructuras ováricas de vacas lecheras en periodo posparto

Agroecosistemas, 2021
El balance energético negativo en vacas lecheras en periodo posparto puede generar trastornos metabólicos, los cuales se encuentran asociados a enfermedades que afectan la condición reproductiva y productiva de las hembras bovinas.
Ulloa Ulloa, Lourdes Anita , Bustos-Marcial, Carlos Alberto , Rosero-Peñaherrera, Marco Antonio, Chamba-Ochoa, Hermógenes René , Lozada-Salcedo, Euclides Efraín   +4 more
doaj  

Climatology and energy budget of the northern hemisphere middle stratosphere durind 1972.

Geofísica Internacional, 1975
La capa atmosférica de 10-2 mb (~30-43 km) recibe en invierno energía de dos fuentes diferentes: energía mecánica es llevada hacia arriba desde la tropósfera y desde la estratósfera baja, mientras que energía es generada in situ por las gradientes de ...
William R. Tahnk, Reginald E. Newell
doaj   +1 more source

Political Cycles, Electricity Policy, and Mexico's Economy

Latin American Policy, Volume 17, Issue 2, June 2026.
ABSTRACT Electricity reform in Mexico should stimulate economic growth, improve energy efficiency, and reduce greenhouse gas emissions. This article evaluates the successes and failures of reform and draws lessons across political cycles by analyzing changes in political dynamics—often tied to policy reversals—and the legal framework during the pro ...
David Bonilla
wiley   +1 more source