Results 121 to 130 of about 491,970 (300)

Palynomorphs from abra límite, zenta range, Eastern Cordillera, Northwestern Argentina [PDF]

open access: yes, 2010
This study presents the first Devonian palynological record in the Zenta Range in Eastern Cordillera, Argentina. Two associations were recognized on the basis of differences in palynomorphs and palynofacies.
Di Pasquo Lartigue, Maria   +1 more
core   +1 more source

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews   +5 more
wiley   +1 more source

Waterbird Richness in Altiplano Wetlands of Northwestern Argentina

open access: yesWaterbirds: The International Journal of Waterbird Biology, 2001
Fil: Caziani, Sandra Monica. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas.
Sandra M. Caziani   +6 more
openaire   +3 more sources

Coalescent-based species delimitation in the sand lizards of the Liolaemus wiegmannii complex (Squamata: Liolaemidae) [PDF]

open access: yes, 2019
Coalescent-based algorithms coupled with the access to genome-wide data have become powerful tools forassessing questions on recent or rapid diversification, as well as delineating species boundaries in the absence of reciprocal monophyly.
Abdala   +118 more
core   +1 more source

Repeatability, Genetic Variability and Importance of Forage Traits in Ecotypes of Brunswickgrass (Paspalum nicorae Parodi) via BLUP

open access: yesPlant Breeding, EarlyView.
ABSTRACT This study estimated the repeatability of forage traits in 84 Paspalum nicorae ecotypes using six statistical methods and quantified the minimum number of harvests needed for effective selection. Multivariate analyses based on best linear unbiased prediction (BLUP) values were also performed to assess genetic variability, identify key traits ...
Diógenes Cecchin Silveira   +9 more
wiley   +1 more source

Evolving supernova remnants in multiphase interstellar media [PDF]

open access: yes, 2019
We performed three-dimensional magnetohydrodynamic simulations to study the evolution of a supernova remnant (SNR) in a turbulent neutral atomic interstellar medium. The media used as background shares characteristics with the Solar neighbourhood and the
Giacani, Elsa Beatriz   +3 more
core   +2 more sources

Clinical and epidemiological features of leishmaniasis in northwestern-Argentina through a retrospective analysis of recent cases.

open access: yesActa Tropica, 2016
Leishmaniasis is a parasitic disease caused by hemoflagellates of the genus Leishmania and is transmitted to humans by the bite of infected phlebotomine sandflies.
M. F. García Bustos   +15 more
semanticscholar   +1 more source

Powers and Practices in Labor Standards Enforcement

open access: yesRegulation &Governance, EarlyView.
ABSTRACT Wage theft remains a pervasive problem internationally and within the United States. In response, worker advocates have sought stronger laws to deter violations and promote compliance. Yet formal authority alone may be insufficient; labor departments often fail to use the full extent of their legal authority to conduct vigorous enforcement ...
Daniel J. Galvin   +4 more
wiley   +1 more source

La crisis de la prensa escrita: una revisión bibliográfica para repensarla desde Latinoamérica

open access: yesCuadernos.info, 2021
En este artículo efectuamos un análisis crítico de 132 publicaciones recientes sobre la crisis de la prensa escrita. Encontramos que la discusión sobre el fenómeno se ha organizado principalmente en torno a tres grupos temáticos: la dimensión económica ...
Facundo Suenzo   +2 more
doaj  

Cambios en elrango de distribución dePotentilla tucumanensis (Rosaceae), una especie críptica en peligro de extinción [PDF]

open access: yes, 2001
Una correcta identificación taxonómica es esencial para la preservación de la biodiversidad. En este trabajo se presentan caracteres morfológicos sencillos para diferenciar la nueva especip, Potentilla tucumanensis recientemente descripta.
Arias, Marta Eugenia   +2 more
core  

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