Results 101 to 110 of about 1,215,139 (199)

Los Enfoques Metodológicos y la Administración Pública Moderna [PDF]

open access: yes, 2006
El artículo propone el uso de las investigaciones científicas por los gerentes públicos para cumplir con los grandes retos del siglo 21 a los que se enfrenta la administración pública de los países en desarrollo de Latinoamérica y el Caribe.
Blanco, Richard
core   +1 more source

Per and Polyfluoroalkyl Substances‐Free Poly(ionic liquid) Reinforced with Cellulose Nanofibrils as Sustainable Electrolyte for High‐Voltage Solid‐State Lithium Batteries

open access: yesBatteries &Supercaps, Volume 9, Issue 4, April 2026.
Lithium metal batteries offer high energy density, but require safer, more stable, and sustainable electrolytes. Per and polyfluoroalkyl substances‐free polymer electrolytes based on poly(diallyldimethylammonium) bis(fluorosulfonyl)imide, N‐methyl‐N‐propylpyrrolidinium bis(fluorosulfonyl)imide, and lithium bis(fluorosulfonyl)imide, reinforced with ...
Carlos Villacis‐Segovia   +5 more
wiley   +1 more source

Observación Participante: ¿técnica o método?

open access: yesNURE Investigación, 2009
En este número, comenzamos el desarrollo de las técnicas observacionales de recogida de datos en investigación cualitativa. Abordamos en este capítulo las diferentes formas de conceptualizar la observación participante desde diversas disciplinas, siendo ...
Juana Robledo Martín (1)
doaj  

Métodos estadísticos utilizados en las ciencias del movimiento humano [PDF]

open access: yes, 2004
El propósito de este estudio fue describir los métodos estadísticos más utilizados en una revista del área de las ciencias del movimiento humano indexada en el Science Citation Index, la cual obtuvo en el año 1999 un factor de impacto 2.110.
José Moncada Jiménez
core  

Evaluating Youth Participatory Action Research in the Americas: Comparative Insights on Empowerment, Methodologies, and Social Change

open access: yesJournal of Adolescence, Volume 98, Issue 3, Page 698-723, April 2026.
ABSTRACT Introduction Youth Participatory Action Research (YPAR) positions adolescents as co‐researchers to investigate and address social issues affecting their lives. While YPAR has gained global prominence, comparative research examining how it is conceptualized and practiced across regional contexts remains limited.
John Diaz   +5 more
wiley   +1 more source

Analysis of the intervention of social workers in the field of migrations [PDF]

open access: yes, 2011
El presente artículo, difundido en parte en el VIII Congreso de Departamentos y Escuelas Universitarias de Trabajo Social (Gijón, 2010), forma parte de los resultados de una investigación que se ha llevando a cabo por investigadores miembros de la ...
Barrera Algarín, Evaristo   +2 more
core  

Strengthening responsibilities to face global crises: A call to ecologists, environmental scientists and their societies

open access: yesPeople and Nature, Volume 8, Issue 4, Page 800-807, April 2026.
Abstract Despite research and outreach efforts by ecologists and environmental scientists (EES), environmental crises continue to escalate. As a diverse group of concerned EES, we perceived a lack of clear guidance to articulate individual actions to improve sustainability.
Carlos Alberto Arnillas   +31 more
wiley   +1 more source

Towards a Novel Biocontrol Strategy: High Performance of Optimised Cell Wall‐Degrading Enzymes Secreted by Escovopsis primorosea LBM 277

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 2, April 2026.
Escovopsis primorosea LBM 277 efficiently produced proteases, β‐1,3‐glucanases and chitinases under submerged fermentation using Leucoagaricus gongylophorus cell walls and Mandels complex. RSM‐BBD optimization significantly increased enzyme activity. The enzymatic cocktail remained stable for 30 days at room temperature and pH 4–6, aligning with the ...
Marcela Paola Barengo   +4 more
wiley   +1 more source

Necesidades sociales del barrio de San Lorenzo Coacalco del Municipio de Metepec, Estado de México [PDF]

open access: yes, 2015
Dentro de la intervención de las ciencias sociales, la investigación de campo permite que el producto a desarrollar se fundamente en el contexto del fenómeno social, permitiendo caer en el realismo del quehacer profesional del investigador y con una ...
Juárez Lara, Juan José
core  

Trefoil Factor‐3 Is a Hypoxia‐Triggered Pro‐Tumorigenic Factor in Hepatoblastoma

open access: yesLiver International, Volume 46, Issue 4, April 2026.
ABSTRACT Background & Aims Hepatoblastoma (HB) is the most common malignant liver tumour in children. Despite improved survival in low‐risk disease, outcomes for advanced or relapsed HB remain poor, emphasising the need for new therapeutic targets.
Luz A. Martínez‐Pérez   +25 more
wiley   +1 more source

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