Results 111 to 120 of about 19,007,229 (263)

Methionine Regulates Antitumour Function of CD8+ T Cells Through Polyamine Synthesis

Immunology, EarlyView.
Methionine restriction in vitro enhances CD8+ T cell effector function by suppressing polyamine synthesis and progressively induces the co‐expression of PD‐1 and TIM‐3. Consistently, sustained dietary methionine restriction diminishes the efficacy of adoptive T cell therapy (ACT) and promotes the expression of terminal exhaustion‐associated markers ...
Tian Zhao, Gillian A. Carleton, Sam Preshaw, Sarah MacPherson, Madison Shiyuk, Joseph Monaghan, Jun Han, Oro Uchenunu, Robert Rottapel, Ralph J. DeBerardinis, Kelly M. Stewart, Bo‐Hyun Kim, Juan Ausió, David R. Goodlett, Helena Pětrošová, Kyle D. Duncan, Julian J. Lum   +16 more
wiley   +1 more source

People's Media Venezuela

, 2012
Producer, translator, subtitlerOver the last decade, Indigenous peoples and new social movements have produced the most profound and democratic transformation in the history of Latin America - the southern part of what Indigenous peoples call Abya Yala ...
Lehman, K
core  

Peasant Movements and the Fourth Transformation in Mexico: What Does the Theory of Collective Empowerment Tell Us?

Journal of Agrarian Change, EarlyView.
ABSTRACT This article examines peasant and Indigenous movements in Mexico since Morena's rise to power in 2018 through the lens of collective empowerment theory, a theory of political‐cultural formation. Beyond offering an empirical assessment, the theory is refined and formalized through an analysis of these movements and their relationship to ...
Gerardo Otero
wiley   +1 more source

South African Media and Politics: Is the Three Models Approach Still Valid After Two Decades? [PDF]

When Hallin and Mancini (2004) produced their watershed Three Models theory, South Africa was a new democracy barely a decade old. Even then, along with other countries of the Global South, the experience of a young democracy posed certain critical ...
Jones, Bernadine, Hadland, Adrian
core   +1 more source

Subsistence hunting shapes the spatial variation of jaguar densities in community‐managed forests

Journal of Zoology, EarlyView.
Jaguars and people can coexist in community‐managed forests, but distance matters. In Guatemala's Maya Biosphere Reserve, jaguar numbers increased markedly in areas harder to reach on foot, yet jaguars were still found near communities, showing that responsibly managed forests can support jaguar populations while allowing people to maintain traditional
L. Perera‐Romero, R. McNab, R. Garcia‐Anleu, J. Polisar, C. Sutherland, D. Thornton   +5 more
wiley   +1 more source

Tick‐borne diseases in subtropical dairy farming: The role of calf rearing strategies in antibody and antigen prevalence Enfermedades Transmitidas por Garrapatas en la Ganadería Lechera subtropical: El Papel de las Estrategias de Crianza de Terneros en la Prevalencia de Anticuerpos y Antígenos

Medical and Veterinary Entomology, EarlyView.
Tropical farmers try to adapt calf‐rearing systems to temperate dairy industry standards. Calves in tick‐infested areas develop stronger immunity to TBD under controlled exposure to ticks. Early tick exposure promotes sustainable management, balancing tick infestation and developing TBD immunity.
Daniela Balseca, Valeria Paucar‐Quishpe, Richar Rodríguez‐Hidalgo, Ximena Pérez‐Otáñez, Darío Cepeda‐Bastidas, Cecilia Pérez‐Escalante, María‐Augusta Chávez‐Larrea, Sandra Enríquez, Jorge Grijalva, Sophie O. Vanwambeke, Claude Saegerman, Lenin Ron‐Garrido   +11 more
wiley   +1 more source

Idosos e aposentadoria: Aspectos sociodemográficos, de qualidade de vida e de coerção associada

Clinical and Biomedical Research, 2023
Objetivo: Descrever características sociodemográficas, qualidade de vida de idosos, e coerção associada a aposentadoria. Métodos: Estudo transversal, com idosos já aposentados.
bruna borba neves, Bruna da Silva Conter, josé roberto goldim   +2 more
doaj  

‘A Legal Whack‐a‐Mole’. Escaping the Rider Law in Spain: Platform Strategies and the Hollowing of Enforcement Under Platform Capitalism

New Technology, Work and Employment, EarlyView.
ABSTRACT This article examines the implementation of Spain's Rider Law, one of the most ambitious regulatory interventions in platform‐mediated work, and analyses why its effects on employment relations have remained limited. Drawing on qualitative interviews with trade union and grassroots rider organisations, the study shows that enforcement has not ...
Martí López‐Andreu, Oriol Barranco
wiley   +1 more source

Vida, inteligencia y simbiosis artificiales

Kepes, 2006
Mientras que los sistemas biológicos siempre han servido como puntos de partida dignos desde los cuales estudiar, emular y modelar la vida artificial, las inteligencias biológicas no existen en individuos solamente.
Ken . Rinaldo
doaj  

Concepciones de estudiantes de educación media general sobre el origen de la vida

, 2021
Resumen Conocimientos originados en el campo de la Física, Química y Biología, acompañados de sus estudios científicos, han generado escenarios plausibles para el origen de la vida (Porto y Falcão, 2010). Durante la enseñanza de este tópico se han presentado varias situaciones; para algunos, de conflictos o controversias (Nascimento y Almeida, 2019 ...
openaire   +2 more sources