Results 71 to 80 of about 14,111,815 (305)

Cohesión social y desarrollo social inclusivo en América Latina: una propuesta para una era de incertidumbres [PDF]

open access: yes, 2021
¿Qué mantiene unidas a las sociedades? ¿Qué identifica y motiva a las personas a convivir voluntariamente sin necesidad de una coerción externa permanente o de un interés inmediato? En tiempos de gran incertidumbre, de crisis y de desafíos existenciales,
Marinho, María Luisa   +3 more
core  

Effect of Carboxymethyl Chitosan and Genipin on the Structural, Water Uptake, and Thermomechanical Properties of Zein‐Based Biodegradable Materials

open access: yesJournal of Applied Polymer Science, EarlyView.
The effects of carboxymethyl chitosan and genipin on zein‐based biodegradable materials have been investigated. The addition of these compounds alters the material's structure, water absorption, and thermomechanical behavior, while genipin enhances mechanical performance through the formation of polymer networks.
Fahimeh Alsadat‐Seyedbokaei   +2 more
wiley   +1 more source

¿Deserción o autoexclusión? Un análisis de las causas de abandono escolar en estudiantes de educación media superior en Sonora, México

open access: yesRevista Electrónica de Investigación Educativa, 2008
La deserción escolar no es una decisión individual, está condicionada por factores contextuales que se identifican en el presente trabajo y se analizan en estudiantes de educación media superior, en Sonora, México.
Elba Abril Valdez   +3 more
doaj  

Pelvic morphology and body size in relation to the preauricular sulcus: Evidence from medieval to modern Iberia

open access: yesThe Anatomical Record, EarlyView.
Abstract The preauricular sulcus has long been debated as a pelvic feature variably attributed to obstetric stress, ligamentous traction, and broader biomechanical processes. To clarify its determinants, we analyzed 409 adult individuals from three archeological and one early modern skeletal collection from the Iberian Peninsula, integrating graded ...
Rebeca García‐González   +5 more
wiley   +1 more source

BPMS para la gestión: una revisión sistemática de la literatura

open access: yesRevista Española de Documentación Científica, 2018
El objetivo de este trabajo es realizar un análisis sistemático de la literatura para mostrar el estado del arte en la investigación sobre los Sistemas de Gestión de Procesos de Negocio (BPMS, por sus siglas en inglés).
Alicia Martín-Navarro   +2 more
doaj   +1 more source

Balancing mechanics and metabolism: Elevational variation in the microanatomy of hummingbird flight muscle

open access: yesThe Anatomical Record, EarlyView.
Abstract Factors varying along elevational gradients impose strong aerodynamic and physiological constraints on powered flight, yet the internal microanatomical variation associated with elevational context in animals under such conditions remains poorly understood.
Juan Camilo Ríos‐Orjuela   +5 more
wiley   +1 more source

Attitudes towards migration in a COVID-19 context: testing a behavioral immune system hypothesis with Twitter data

open access: yesEPJ Data Science
The COVID-19 outbreak implied many changes in the daily life of most of the world’s population for a long time, prompting severe restrictions on sociality.
Yerka Freire-Vidal   +5 more
doaj   +1 more source

Pelvic breadth and juvenile locomotor energetics: Implications for the obstetrical dilemma hypothesis across human growth in past and present humans

open access: yesThe Anatomical Record, EarlyView.
Abstract The obstetrical dilemma hypothesis (ODH) proposes an evolutionary trade‐off between obstetric requirements and locomotor performance. However, whether external pelvic breadth measures influence walking energetics during human growth remains poorly understood.
Guillermo Zorrilla‐Revilla   +4 more
wiley   +1 more source

El derecho al desarrollo desde la perspectiva de género [PDF]

open access: yes, 2004
El tema de esta tesis es la relación dialéctica entre el derecho al desarrollo y la categoría de género. A partir de la existencia de un nuevo derecho humano: el derecho al desarrollo, se explora su particular repercusión en el estatuto de protección ...
Zúñiga Añazco, Yanira
core   +1 more source

Thermophilic anaerobic treatment and biogas generation from wastewater produced in an advanced biorefinery process

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Anaerobic digestion can be an alternative method for treating wastewater from second‐generation biorefineries while simultaneously producing biogas. However, the feasibility of the process and key operational parameters by which wastewater produced in lignocellulosic biorefineries affects reactor performance remain poorly understood.
Jairo M. Carrillo‐Osorio   +1 more
wiley   +1 more source

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