Results 101 to 110 of about 1,003,775 (308)

Description of the larva of Phyllopetalia apollo Selys and redescription of that of Hypopetalia pestilens Mclachlan (Anisoptera: Austropetalidae) [PDF]

open access: yes, 2009
The P. apollo larva is described for the first time and the larva of H. pestilens is redescribed.These are the first records of these spp. for Argentina and for the easternslope of the Andes. In order to determine the larval instars, length of inner wing
Brand, Cecilia, Pessacq, Pablo
core  

Seasonal stability in parasite assemblages of the Brazilian flathead, Percophis brasiliensis (Perciformes: Percophidae): Predictable tools for stock identification [PDF]

open access: yes, 2010
A comparison of the composition and structure of parasite communities of the Brazilian flathead, Percophis brasiliensis Quoy et Gaimard (Perciformes: Percophidae) among seasons during one year was carried out in the Argentine Sea.
Braicovich, Paola Elizabeth   +1 more
core   +2 more sources

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

Aprender química es también aprender a autorregularse: cómo mejorar la comprensión de lo que se hace y cómo se hace en el laboratorio

open access: yesEducación Química
Este artículo presenta una experiencia enfocada en el aprendizaje autorregulado del estudiantado universitario en un laboratorio de química general.
Cristian Merino   +5 more
doaj   +1 more source

Pre-switching bifurcation of a slender jet [PDF]

open access: yes, 2016
In this work, we study the near-field of the jet flow exiting a slot-model with aspect ratio 7.5:1. The core of the slender jet separates into two streams which subsequently merge recomposing a single core jet.
Artana, Guillermo Osvaldo   +2 more
core   +1 more source

Integrating whole‐bone and regional analyses to understand human scapular growth

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigates ontogenetic changes in human scapular morphology using three‐dimensional geometric morphometrics with whole‐bone and region‐specific analyses. The aim is to evaluate whether the scapula follows a regular developmental pattern and whether its functionally distinct components, the scapular spine (SS) and glenoid fossa ...
Azahara Salazar‐Fernández   +3 more
wiley   +1 more source

Validación de un instrumento para evaluar la gestión integral de la seguridad en laboratorios académicos

open access: yesEducación Química
La seguridad en el laboratorio de ciencias es un área de importancia debido a los peligros a los que se puede encontrar expuesta la comunidad escolar usuaria.
Clara Rosalía Álvarez-Chávez   +4 more
doaj   +1 more source

Laboratorio experimental

open access: yesEME Experimental Illustration, Art & Design, 2014
[EN] The journey from literary metaphore to visual metaphore, through the use of illustration, taking as a starting point several greguerías by Ramon Gómez de la Serna... [ES] El tránsito de la metáfora literaria a la metáfora visual, mediante el uso de la ilustración a partir de diversas greguerías de Ramón Gómez de la Serna…
openaire   +4 more sources

Organochlorine Compounds in Common Carp (Cyprinus carpio) from Patagonia Argentina [PDF]

open access: yes, 2010
The Negro River is the most important hydrological system of Patagonia, Argentina, drains a watershed of 140,000 km2. Its main economic activities are agriculture and industry, representing potential sources of organochlorine compounds (OCCs ...
Aizpún, Julia Elena   +5 more
core  

Stunting of the penis in Heleobia parchappii (Mollusca: Cochliopidae) and its relationship with parasitism [PDF]

open access: yes, 2017
Penis anatomy is used to discriminate species of gastropods belonging to the family Cochliopidae; however, this characteristic may be affected by the presence of parasites.
Etchegoin, Jorge Alejandro   +2 more
core   +2 more sources

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