Geographical distribution of Tillandsia lomas in the Atacama Desert, northern Chile

2006 ◽  
Vol 65 (4) ◽  
pp. 543-552 ◽  
Author(s):  
R. Pinto ◽  
I. Barría ◽  
P.A. Marquet
Keyword(s):  
Geographical Distribution ◽  
Atacama Desert ◽  
Northern Chile

CONFOUNDINGLY COMPLEX EXPOSURE HISTORIES REVEALED BY 21NE AND 10BE ABUNDANCES IN ALLUVIAL DEPOSITS OF THE ATACAMA DESERT, NORTHERN CHILE

2017 ◽  
Author(s):  
Matthew Cross Jungers ◽  
◽  
Arjun M. Heimsath ◽  
Ronald Amundson ◽  
Greg Balco ◽  
...  
Keyword(s):  
Atacama Desert ◽  
Northern Chile ◽  
Alluvial Deposits

Potential of arsenic bioremediation by a cyanobacterium isolated from the Salado River in the Atacama Desert

2021 ◽  
Vol 43 (2) ◽  
pp. 156-160
Author(s):  
Pablo Pérez-Portilla ◽  
Juan Araya ◽  
Karem Gallardo ◽  
Adriana Aránguiz-Acuña
Keyword(s):  
Atacama Desert ◽  
Aquatic Systems ◽  
Arid Environments ◽  
Northern Chile ◽  
Evolutionary Mechanisms ◽  
Alkaline Conditions ◽  
Ph Conditions ◽  
Removal Of Arsenic ◽  
Salado River ◽  
Over Time

Abstract Cyanobacteria and microalgae are recognized as excellent metal(loid)s-bioremediators of aquatic systems. We isolated a cyanobacterium from the Salado River in the Atacama Desert, northern Chile, which was identified as Cyanobium sp. Growth inhibition bioassays were conducted with arsenic and cadmium, and tolerance of Cyanobium to these metals was estimated. Removal of arsenic was assessed under different pH conditions and over time. We showed that the Cyanobium strain isolated from the Salado River has a greater tolerance to the arsenic and cadmium compounds than other species commonly used in metal(loid)s-bioremediation. Removal of up to 90% of arsenic was obtained in alkaline conditions, within the first 3 hours of exposure suggesting that Cyanobium sp. isolated from the Atacama Desert could be further studied with biotechnological purposes and to understand the evolutionary mechanisms of adaption to arid environments.

The Paleoepidemiology of American Trypasonomiasis (Chagas disease)

1970 ◽  
Vol 80 (1) ◽  
Author(s):  
Wilmar Salo ◽  
William C. Auferheide ◽  
Michael Madden ◽  
John Streitz ◽  
Jane Buikstra ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Ancient Dna ◽  
Academic Discipline ◽  
Atacama Desert ◽  
Geographic Area ◽  
Northern Chile ◽  
Kinetoplast Dna ◽  
Testing Hypotheses ◽  
The Past ◽  
Tissue Specimens

Ancient DNA methodology was applied to extract and amplify a segment of kinetoplast DNA of Trypanosoma cruzi in soft tissue specimens from about 300 spontaneously mummified human bodies from the Atacama Desert in northern Chile and southern Peru. A DNA probe was then employed to hybridize with the amplicon. Results indicate that about 41% of the population in that geographic area were infected with the trypanosome over the past 9000 years. The epidemiological implications of these findings are discussed. It is also emphasized that this and several other paleoepidemiological studies in progress have established that population-study cohorts of mummies now can generate statistically valid paleoepidemiological investigations capable of testing hypotheses. These reflect the maturation of the academic discipline of the scientific study of mummies.

scholarly journals Let's talk about stress, baby! Infant-feeding practices and stress in the ancient Atacama desert, Northern Chile

2018 ◽  
Vol 166 (1) ◽  
pp. 139-155 ◽  
Author(s):  
Charlotte L. King ◽  
Siân E. Halcrow ◽  
Andrew R. Millard ◽  
Darren R. Gröcke ◽  
Vivien G. Standen ◽  
...  
Keyword(s):  
Infant Feeding ◽  
Atacama Desert ◽  
Feeding Practices ◽  
Northern Chile ◽  
Infant Feeding Practices

New ctenochasmatid pterosaur record for Gondwana: discovery in the Lower Cretaceous continental deposits of the Atacama Desert, northern Chile

2020 ◽  
Vol 110 ◽  
pp. 104378
Author(s):  
Jhonatan Alarcón-Muñoz ◽  
Sergio Soto-Acuña ◽  
Laura Codorniú ◽  
David Rubilar-Rogers ◽  
Michel Sallaberry ◽  
...  
Keyword(s):  
Lower Cretaceous ◽  
Atacama Desert ◽  
Northern Chile ◽  
Continental Deposits

Water table variations in the hyperarid Atacama Desert: Role of the increasing groundwater extraction in the pampa del tamarugal (Northern Chile)

2019 ◽  
Vol 168 ◽  
pp. 9-16 ◽  
Author(s):  
Benoît Viguier ◽  
Hervé Jourde ◽  
Véronique Leonardi ◽  
Linda Daniele ◽  
Christelle Batiot-Guilhe ◽  
...  
Keyword(s):  
Water Table ◽  
Atacama Desert ◽  
Northern Chile ◽  
Groundwater Extraction ◽  
Pampa Del Tamarugal

Development of a steep erosional gradient over a short distance in the hyperarid core of the Atacama Desert, northern Chile

2020 ◽  
Vol 184 ◽  
pp. 103068 ◽  
Author(s):  
Joel Mohren ◽  
Steven A. Binnie ◽  
Benedikt Ritter ◽  
Tibor J. Dunai
Keyword(s):  
Short Distance ◽  
Atacama Desert ◽  
Northern Chile
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