Results 111 to 120 of about 288 (225)

Preferential trading in agriculture: New insights from a structural gravity analysis and machine learning

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Preferential trade agreements (PTAs) contain various non‐tariff provisions, yet identifying their trade effects remains challenging because these commitments are high‐dimensional and strongly correlated within agreements. We estimated a theory‐consistent structural gravity model with domestic flows for 26 agricultural subsectors over 1988–2017
Dongin Kim, Sandro Steinbach
wiley   +1 more source

Biodegradación de aceites lubricantes en residuos lignocelulosicos por Pleurotus ostreatus

open access: yes, 2018
5. Cpítulo 3: Actividad microbiana y antiodixante de los extractos etanolicos de pleurotus ostreatus.
openaire   +2 more sources

1,2‐propanediol reformulation improves tribromoethanol safety and reveals pontine GABRA1 enrichment as a candidate mechanistic correlate of anesthesia

open access: yesAnimal Models and Experimental Medicine, EarlyView.
This study develops a reformulated tribromoethanol (TBE) anesthetic using 1,2‐propanediol as a solvent to overcome solvent‐related toxicity. The novel formulation demonstrates, cardiovascular stability, and survival in prolonged protocols. It provides potent, dose‐dependent anesthesia without strain or sex differences.
Xia Li   +3 more
wiley   +1 more source

Obtención de recubrimientos autolubricados por proyección térmica de plasma atmosférico (APS) como alternativa a los lubricantes líquidos

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2005
The low friction coefficient coatings are a new approach to substitution of oil lubricated systems. The introduction of a solid lubricant in a matrix with good mechanical properties gives to the system a low friction coefficient and improves the wear ...
Guilemany, J. M.   +3 more
doaj  

Estudio quimiométrico de aceites lubricantes marinos

open access: yes, 2015
El proyecto realizado se basa la puesta en marcha de distintos procedimientos quimiométricos aplicados al control de los lubricantes presentes en sistemas de propulsión, para dos ensayos muy demandados por la importancia de las decisiones relacionadas con su análisis, el contenido de insolubles y el BN.
openaire   +1 more source

Natural Aging of Biomaterials in Ambient and Physiological Environments

open access: yesAdvanced NanoBiomed Research, EarlyView.
Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley   +1 more source

Logespec: Sostenibilidad y lubricantes ecológicos. (Septiembre 2024).

open access: yes
Revista Logespec de vigilancia Tecnológica. Tiene como temática principal las regulaciones, tendencias, mejores prácticas y normativa técnica para optimizar operaciones en las empresas y un buen trato con el medio ambiente. Ya que estamos en un mundo tan cambiante y globalizado la industria de lubricantes no se puede quedar atrás y deberá continuar con
Renato Cabrera .( Ingeniero civil industrial).   +1 more
openaire   +1 more source

Liposomal Delivery of L‐2‐Hydroxyglutarate for Targeting Epigenetic Dysregulation in Osteoarthritis

open access: yesAdvanced NanoBiomed Research, EarlyView.
Osteoarthritis involves cartilage degeneration, inflammation, and epigenetic dysregulation. A liposomal formulation of the TET1 inhibitor L‐2‐hydroxyglutarate to overcome rapid joint clearance was developed. The formulation showed good physicochemical properties, reduced inflammatory and catabolic gene expression in chondrocytes, and alleviated ...
Denise Murgia   +10 more
wiley   +1 more source

Open-care telemedicine in ophthalmology during the COVID-19 pandemic: a pilot study. [PDF]

open access: yesArch Soc Esp Oftalmol (Engl Ed), 2020
Arntz A   +7 more
europepmc   +1 more source

Comportamiento viscoso de lubricantes e altas presiones

open access: yes, 2012
Esta Tesis Doctoral se centra en el estudio del comportamiento viscoso a alta presión de diferentes lubricantes de tipo mineral, vegetal y sintético. Cinco líquidos analizados a lo largo de este trabajo pueden ser usados como materiales de referencia para la calibración de viscosímetros a presión: di (2-etilhexil) sebacato, di (2-etilhexil) ftalato ...
openaire   +1 more source

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