Results 31 to 40 of about 2,932 (253)

Valorization of Post‐Consumer Waste From Metallized Flexible Packaging and Industrial EPM Waste: Development of Sustainable Composites

open access: yesJournal of Applied Polymer Science, EarlyView.
Post‐consumer metallized flexible packaging waste and industrial EPM waste are transformed into sustainable composites through mechanical recycling. The incorporation of 30 wt% EPM provides the most favorable balance between stiffness, ductility, and impact resistance, achieving 53.36 kJ/m2.
Tiago O. Oliveira   +2 more
wiley   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

open access: yesThe Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt   +4 more
wiley   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

PHYSICOCHEMICAL AND ANTIBACTERIAL PROPERTIES OF PLA-CHITOSAN BLENDS OBTAINED BY CASTING WITH POTENTIAL USE AS AGRICULTURAL MULCH FILMS

open access: yesAvances en Ciencias e Ingeniería, 2016
PLA-Chitosan films compatibilized with hexamethylenediisocyanate (HDI) were obtained by casting and subsequent hot pressing. The films were prepared with different contents of chitosan (CS) and then its physicochemical properties were studied by Fourier ...
Danila Merino   +3 more
doaj  

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia   +9 more
wiley   +1 more source

Cambios del nivel del mar durante el holoceno en el litoral caribe colombiano

open access: yesCuadernos de Geografía: Revista Colombiana de Geografía, 1999
Este artículo presenta los resultados más destacados las investigaciones recientes sobre las variaciones en el nivel del mar en la costa caribe colombiana basado en el estudio de las geofórmas litorales, depósitos costeros y deltaicos asociados.
Kim Robertson D., Néstor Martínez A.
doaj   +2 more sources

EL CAMBIO CLIMATICO Y SU PROYECCIÓN SOBRE EL NIVEL DEL MAR EN LA COSTA DEL PACÍFICO DE PANAMÁ

open access: yesTecnociencia, 2008
  Para poder proyectar el aumento del nivel del mar en Panamá para el final del siglo XXI, se procesó información, de más de noventa años de datos mensuales, del nivel del mar registrado diariamente en el Puerto de Balboa entre 1909 y 1998.
Bogdan Kwiecinski, Luis D’Croz
doaj  

Determinación y comparación de los volúmenes pulmonares entre las poblaciones que viven a nivel del mar y a más de 3000 msnm

open access: yesRevista de la Facultad de Medicina Humana, 2018
Objetivos: Determinar en qué porcentaje varían los volúmenes y capacidades pulmonares de los habitantes de Huancayo a los que viven a nivel del mar y verificar si las curvas de normalidad del NAHNES III MEXICANO-AMERICANO se ajustan a nuestro grupo ...
Vasthy Mauricio Canaviri
doaj   +1 more source

Descriptive, stratigraphic, and morpho‐functional study of the myocardium and myocardial bridges in domestic pig hearts

open access: yesThe Anatomical Record, EarlyView.
Abstract The heart is the central organ of the cardiovascular system. The myocardium is composed of a three‐dimensional network of fibers arranged in clockwise and counterclockwise helices, which are essential for proper cardiac contraction. This study aimed to describe the stratigraphic and morpho‐functional pattern of the porcine myocardium to ...
Mauricio Oliveira da Silva   +3 more
wiley   +1 more source

Cambio y variabilidad climática contemporáneos en la costa de Manabí, Ecuador

open access: yesLa Técnica: Revista de las Agrociencias, 2014
El objetivo del presente trabajo fue estimar las tasas de cambio actualizadas de temperatura ambiente, temperatura superficial del mar, nivel medio del mar, altura y dirección del oleaje incidente en el litoral de la provincia de Manabí, a partir del ...
Manuel Contreras López   +4 more
doaj   +1 more source

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