Results 51 to 60 of about 30,444 (210)

Estrés académico y estrategias de afrontamiento en estudiantes de la Universidad Nacional del Altiplano Puno [PDF]

, 2017
La investigación tuvo como objetivo central determinar el grado de relación entre el estrés académico y las estrategias de afrontamiento, la hipótesis planteada fue que el grado de relación entre el estrés académico y las estrategias de afrontamiento es ...
Dueñas Zúñiga, Huguette Fortunata
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Parámetros productivos en ovejas de raza Lincoln bajo las condiciones ambientales. del altiplano mexicano

Revista Mexicana de Ciencias Pecuarias, 1990
Los principales parámetros productivos fueron evaluados en ovejas y corderos de raza lincoln, bajo las condiciones climáticas y de manejo del altiplano central mexicano.
Pau PiJoan Aguadé, Efrén Ramírez Bribiesca, Carlos Vázquez Pelaéz   +2 more
doaj  

Assessing Conflict Potential Between Birds and Small‐Scale Fisheries in Lake Titicaca

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 4, April 2026.
ABSTRACT Globally, fisheries bycatch constitutes a threat to aquatic birds. However, while the threat is global, the threat from bycatch in inland fisheries, and from artisanal or small‐scale fishing, is particularly understudied. Here, we present the first attempt to map the vulnerability of birds to fisheries bycatch, and the conflict potential ...
D. A. Villar, Paola Velásquez‐Noriega, Bastian Thomsen, Edwin R. Gutiérrez Tito, Anahi Cosky Paca‐Condori, Edmundo G. Moreno Terrazas, Ronald Hinojosa Cárdenas, Alfredo Balcón Cuno, Carmen Villanueva, Patrick Chapman, Jhazel Quispe, Andrew G. Gosler   +11 more
wiley   +1 more source

Effects of grazing and fire on herbaceous species in the Bolivian Altiplano [PDF]

, 2012
High mountain rangelands had been under human land use for millennia in most parts of the world. Traditional land care systems led to highly diverse and stable ecosystems.
Aguilar, Lita Beatriz Patty
core   +1 more source

Fault Friction, Plate Rheology, and Mantle Torques From a Global Dynamic Model of Neotectonics

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Improvements in software, parallel computing, global data sets, and laboratory flow‐laws help to develop the global Earth5 thin‐shell finite‐element model of Bird et al. (2008, https://doi.org/10.1029/2007jb005460) into a benchmark study. All experiments confirm that modeled faults (other than megathrusts) have low effective friction of 0.085 ±
Peter Bird, Jon Bryan May, Michele M. C. Carafa   +2 more
wiley   +1 more source

Assembling the Neotropical Tree Flora: Andean Uplift and the Historical Biogeography of the Brazil Nut Family (Lecythidaceae)

Journal of Biogeography, Volume 53, Issue 4, April 2026.
ABSTRACT Aim The assembly of tropical tree floras is complex, involving many lineage‐specific histories; however, focusing on the biogeographic history of diverse clades can reveal general patterns. We investigated the historical biogeography of the ecologically important Brazil nut clade (Lecythidoideae) to: (1) expand prior phylogenies with greater ...
Diana Medellín‐Zabala, Joseph L. M. Charboneau, Oscar M. Vargas, Stephen A. Smith, Deise J. P. Gonçalves, Andre S. Chanderbali, Douglas E. Soltis, Pamela S. Soltis, Christopher W. Dick   +8 more
wiley   +1 more source

La gestión del conocimiento del personal administrativo en las facultades de la Universidad Nacional del Altiplano

, 2008
En el transcurso del avance de la civilización humana, el conocimiento, ha sido considerado como un medio importante para el desarrollo de las organizaciones.
Portillo Loayza, Maricela Alicia
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Terrestrial ages of meteorites from the Atacama Desert (Chile) and insights into the past meteorite flux to Earth

Meteoritics &Planetary Science, Volume 61, Issue 4, Page 644-663, April 2026.
Abstract The Atacama Desert in Chile is characterized by its high meteorite density and old meteorite terrestrial ages. In this work, we present new terrestrial ages derived from measurements of the concentration of cosmogenic 36Cl in the metal fraction of 51 ordinary chondrites collected over a 6.8 km2 area located in the Catalina Dense Collection ...
Carine Sadaka, Jérôme Gattacceca, Florian Dumas, Régis Braucher, ASTER Team, Ingo Leya, Mohammad Tauseef, Pierre‐Henri Blard, David Bekaert, Evelyn Füri, Laurent Zimmermann, Anthony Lagain, Hadrien A. R. Devillepoix, Matthieu Gounelle   +13 more
wiley   +1 more source

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, Volume 73, Issue 3, Page 802-837, April 2026.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

La escuela rural de Utawilaya y los Adventistas en el Altiplano puneño 1898 – 1920 [PDF]

, 2016
La presente tesis de investigación estudia el desarrollo de la “Escuela Rural de Utawilaya y los Adventistas en el Altiplano puneño 1898 – 1920”, de las localidades de Chucuito y Platera de la provincia de Puno – Perú, investigación realizada durante el ...
Ruelas Vargas, David
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