Environmental Chemicals, Temporal and Spatial Range, and Environmental Justice

2006 ◽  
pp. 51-74
Keyword(s):  
Environmental Justice ◽  
Environmental Chemicals ◽  
Spatial Range ◽  
Temporal And Spatial

scholarly journals Las corridas de ganado en Molinos: una propuesta de Etnografía Visual sobre la trashumancia de ganado en los Valles Calchaquíes Septentrionales, Salta, Argentina

ILUMINURAS ◽  
2015 ◽  
Vol 16 (40) ◽  
Author(s):  
Andrés Jakel ◽  
Laura Teves
Keyword(s):  
Environmental Management ◽  
Management Strategies ◽  
Central Andes ◽  
Visual Ethnography ◽  
South Central ◽  
Spatial Range ◽  
Environmental Management Strategies ◽  
Cattle Management ◽  
Preliminary Study ◽  
Temporal And Spatial

El presente trabajo constituye una aproximación preliminar al estudio de la actividad de las corridas de ganado en el Departamento de Molinos en los Valles Calchaquíes septentrionales, Salta, Argentina. Se toma como caso el evento de la “separada” de animales, que es la culminación del gran evento de la “corrida”, el cual consta de un desarrollo secuenciado y pautado, de alcance temporal y espacial en la región. Se intenta realizar un aporte al estudio de las estrategias de manejo del ambiente en los Valles Calchaquíes salteños septentrionales, a través del caso de las corridas de ganado en Molinos. Al mismo tiempo buscamos testear la aplicabilidad y eficacia de la metodología de la etnografía visual para el estudio de las relaciones hombre – medio, y sus implicancias en la percepción, manejo y movilidad de estas comunidades en su entorno natural y social.Palabras-clave: Manejo de ganado. Relaciones hombre-medio. Etnografía visual. Andes centrales surCattle Management in Molinos: a proposal for Visual Ethnography on the transhumance of cattle in Northern Calchaquí Valleys, Salta, ArgentinaAbstractThis work is a preliminary study of the activity of cattle management in Molinos in the northern Calchaquí Valley, Salta, Argentina. We take as a case of study the event of "separada" of animals, which is the culmination of the great event of the "corrida", which consists of a sequenced development with wide temporal and spatial range in the region. Our proposal tries to make a contribution to the study of environmental management strategies in northern Salta Calchaquí Valleys, through the case of cattle management in Molinos. At the same time we seek to test the applicability of visual ethnography as a strategy to study the perceptions, management and mobility of these communities in their natural and social environment.Key words: Cattle management. Relationships between humans and their environment. Visual ethnography. South central Andes. 

scholarly journals Relationship between Persistence and Spatial Range of Environmental Chemicals

2000 ◽  
pp. 52-63
Author(s):  
Martin Scheringer ◽  
Deborah H. Bennett ◽  
Thomas E. McKone ◽  
Konrad Hungerbühler
Keyword(s):  
Environmental Chemicals ◽  
Spatial Range

Lower vertebrates from an Arikareean (earliest Miocene) fauna near the Toledo Bend Dam, Newton County, Texas

1994 ◽  
Vol 68 (5) ◽  
pp. 1131-1145 ◽  
Author(s):  
L. Barry Albright
Keyword(s):  
Coastal Plain ◽  
Largemouth Bass ◽  
First Record ◽  
Early Miocene ◽  
Gulf Coastal Plain ◽  
Coastal Lowland ◽  
Spatial Range ◽  
Lower Vertebrates ◽  
Temporal And Spatial

A recently discovered vertebrate fossil-bearing locality in the Fleming Formation of easternmost Texas has revealed a highly diverse fauna that contains a minimum of 44 early Miocene vertebrate taxa. At least 17 different species of lower vertebrates were recovered including five fish, two amphibians, one lizard, two snakes, at least five chelonians, and two crocodilians. A tiny boid that compares favorably with Anilioides nebraskensis is the first record in the Gulf Coastal Plain, and remains of a large aquatic turtle referred to the genus Dermatemys possibly represent its first fossil occurrence. Other rare genera represented include the largemouth bass Micropterus, possibly the snook Centropomus, and the crocodilian Gavialosuchus. In addition, temporal and spatial range extensions are recorded for Micropterus and Alligator olseni. These taxa, along with the mammalian component to be discussed elsewhere, document the rare preservation of a forested subtropical to tropical coastal lowland paleoenvironment and provide evidence to imply that separation into mid-continent and coastal plain paleobiogeographic provinces had not yet occurred.

Space and Time Distribution of Hard X-Ray Emission in a Loop at the Beginning of a Flare

1994 ◽  
Vol 144 ◽  
pp. 275-277
Author(s):  
M. Karlický ◽  
J. C. Hénoux
Keyword(s):  
Time Distribution ◽  
Electron Bombardment ◽  
Spatial Evolution ◽  
Superthermal Electrons ◽  
Flare Loop ◽  
X Ray ◽  
Superthermal Electron ◽  
Flare Loops ◽  
Chromospheric Evaporation ◽  
Temporal And Spatial

AbstractUsing a new ID hybrid model of the electron bombardment in flare loops, we study not only the evolution of densities, plasma velocities and temperatures in the loop, but also the temporal and spatial evolution of hard X-ray emission. In the present paper a continuous bombardment by electrons isotropically accelerated at the top of flare loop with a power-law injection distribution function is considered. The computations include the effects of the return-current that reduces significantly the depth of the chromospheric layer which is evaporated. The present modelling is made with superthermal electron parameters corresponding to the classical resistivity regime for an input energy flux of superthermal electrons of 109erg cm−2s−1. It was found that due to the electron bombardment the two chromospheric evaporation waves are generated at both feet of the loop and they propagate up to the top, where they collide and cause temporary density and hard X-ray enhancements.

Ultrastructural analysis of unique glycoconjugates in the rat olfactory system

1992 ◽  
Vol 50 (1) ◽  
pp. 890-891
Author(s):  
James E. Crandall ◽  
Linda C. Hassinger ◽  
Gerald A. Schwarting
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Monoclonal Antibodies ◽  
Olfactory System ◽  
Olfactory Bulbs ◽  
Temporal And Spatial Patterns ◽  
Carbohydrate Epitopes ◽  
Olfactory Systems ◽  
Temporal And Spatial ◽  
Cell Surface Glycoconjugates

Cell surface glycoconjugates are considered to play important roles in cell-cell interactions in the developing central nervous system. We have previously described a group of monoclonal antibodies that recognize defined carbohydrate epitopes and reveal unique temporal and spatial patterns of immunoreactivity in the developing main and accessory olfactory systems in rats. Antibody CC2 reacts with complex α-galactosyl and α-fucosyl glycoproteins and glycolipids. Antibody CC1 reacts with terminal N-acetyl galactosamine residues of globoside-like glycolipids. Antibody 1B2 reacts with β-galactosyl glycolipids and glycoproteins. Our light microscopic data suggest that these antigens may be located on the surfaces of axons of the vomeronasal and olfactory nerves as well as on some of their target neurons in the main and accessory olfactory bulbs.

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