Results 111 to 120 of about 5,184,438 (307)

Emergent media narratives on land conflicts in a global biocultural diversity hotspot

open access: yesPeople and Nature, EarlyView.
Abstract Land conflicts (LCs) represent major challenges in regions where limited resources are contested by diverse actors. The triple frontier of the bioculturally diverse Alto Paraná Atlantic Forests (APAF) ecoregion concentrates some of the most intense LCs in South America.
Alberto Anticoli   +7 more
wiley   +1 more source

Desarrollo regional, educación y arquitectura

open access: yes6to. Cogreso Internacional Ciudad y Territorio Virtual, Mexicali, 5, 6 y 7 Octubre 2010, 2010
El intercambio de experiencias es una forma fundamental para trascender finalidades al generarse en estos foros una cultura de investigación compartida a través de sus diversos espacios de reflexión, orientado al desarrollo regional y el paradigma de la sustentabilidad, para implementar precisamente estrategias de posibles formas de integración.
openaire   +2 more sources

Extension of Isoconversional Analysis to Diffusion‐Controlled Epoxy Cure Kinetics: Comparison With Model‐Fitting Approaches

open access: yesPolymer Engineering &Science, EarlyView.
Extending isoconversional analysis of DSC data to diffusion‐controlled regimes captures the rise in apparent activation energy upon vitrification and yields TTT diagrams of RTM6 epoxy resin that remain accurate when diffusion, rather than chemistry, governs the cure rate.
Didina‐Ramona‐Casandra Cârstea   +5 more
wiley   +1 more source

Sustainable PEG‐Based Shape‐Stabilized Phase Change Materials Using Raw Pine Cone as a Low‐Cost Filler and Graphite for Enhanced Thermal Conductivity

open access: yesPolymer Engineering &Science, EarlyView.
Preparation of sustainable PEG‐based ssPCMs using a PC‐based low‐cos filler and G as a thermal enhancer. PEG 6000 is incorporated into the PC/G matrix through mixing to obtain the shape‐stabilized PCM for thermal energy storage applications. ABSTRACT This study investigates the development of a novel shape‐stabilized phase change material (ssPCM ...
Amira Akrouti   +5 more
wiley   +1 more source

Extruder‐based 3D printing of eco‐friendly polymers

open access: yesPolymer International, EarlyView.
Eco‐friendly polymers, such as biodegradable and recycled materials, offer significant potential for the production of high‐quality 3D‐printed components, provided that their properties and characteristics meet the requirements of extruder‐based 3D printing.
Rui Zhang   +7 more
wiley   +1 more source

Opposite Trends in Glass Transition and Vogel Temperatures in Long‐Chain Branched Poly(l‐Lactic Acid)

open access: yesJournal of Polymer Science, EarlyView.
The glass transition temperature (Tg), as determined by conventional DSC, increases from 326 K to 329 K while the Vogel temperature (Tv) decreases from 271 K to 255 K as the number of branch points per molecule increases from 0 to 3.3. ABSTRACT Poly(l‐lactic acid) (PLLA) is widely used as both a commodity thermoplastic and for engineering applications,
Rui Zhang   +11 more
wiley   +1 more source

Management and incipient domestication of Chamaedorea tepejilote in agroforestry systems in Mexico

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Native wild plants are key elements in addressing global biodiversity loss and supporting sustainable food systems. We investigated how rural communities in Mexico manage Chamaedorea tepejilote, a wild palm with edible male inflorescences, by combining ethnobotanical, genetic, morphological and ecological approaches.
Viviana Andrade   +7 more
wiley   +1 more source

Intervención Estatal y Desarrollo Regional

open access: yesEntornos, 1993
Indiscutiblemente la figura de al región emerge como una nueva dimensión a partir de la cual, se pretende no solo dentro de las políticas públicas, sino también de la teoría económica en general, impulsar los procesos de desarrollo nacional y regional en Colombia.
openaire   +1 more source

Using MALDI‐FTICR Mass Spectrometry to Enhance ZooMS Identifications of Pleistocene Bone Fragments Showing Variable Collagen Preservation

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Recent advances in high‐throughput molecular analyses of collagen peptides, especially ZooMS (Zooarchaeology by Mass Spectrometry), have permitted breakthroughs in the analysis of archaeological material that is highly fragmented, a factor that hinders morphological identification.
Pauline Raymond   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy