Results 71 to 80 of about 1,311,056 (352)

Microbial Contribution to Soiling and Its Impact on Photovoltaic Module Soiling in Arid Zones of the Atacama Desert

open access: yesAdvanced Sustainable Systems, EarlyView.
Microorganisms colonizing photovoltaic surfaces in the Atacama desert form biofilms that enhance particle adhesion and reduce energy yield. This study identifies UV‐resistant bacteria and carotenoid‐producing strains that interfere with PV performance.
Douglas Olivares   +8 more
wiley   +1 more source

Entre as vilas e os sertões: trânsitos indígenas e transculturações nas fronteirasdo Espírito Santo (1798-1840)

open access: yesNuevo mundo - Mundos Nuevos, 2011
Among the villages and backlands: indigenous transits and transculturation in the frontiers of Espirito Santo (1798 - 1840)This paper discusses the moulding of the social life in the zones of contact, electing as a reflection problem the transit of the ...
Vânia Maria Losada Moreira
doaj   +1 more source

[Review of] Richard F. Fleck. Henry Thoreau and John Muir Among the Indians [PDF]

open access: yes, 1987
The idea behind this book, a comparative study of Henry David Thoreau\u27s and John Muir\u27s attitudes toward American Indians, is excellent. Muir, born in 1838, was twenty one years younger than Thoreau.
Sayre, Robert F.
core   +1 more source

Paving the Way to Elucidate Hg's Role in Tumorigenesis

open access: yesAdvanced Science, EarlyView.
Tumorigenesis can result from diverse environmental carcinogens. Among them, mercury—a lifelong bioaccumulative Group 2B carcinogen—has tumorigenic potential that remains poorly understood due to confounding co‐exposures and limited organ‐specific data.
Shouying Li   +10 more
wiley   +1 more source

Reconstructing Indian Population History

open access: yesNature, 2009
India has been underrepresented in genome-wide surveys of human variation. We analyse 25 diverse groups in India to provide strong evidence for two ancient populations, genetically divergent, that are ancestral to most Indians today.
D. Reich   +4 more
semanticscholar   +1 more source

Alkylthienyl Side Groups in Conjugated Polymers Enable Localization of π Electron Density and Facilitate Efficient Hole Transfer

open access: yesAdvanced Science, EarlyView.
Resonance Raman spectroscopy is used in combination with other spectroscopic and morphology characterization techniques to unveil the mechanistic origin of the shift in synthetic strategy to alkylthienyl peripheral groups for high‐performing organic photovoltaics.
Hristo Ivov Gonev   +13 more
wiley   +1 more source

Borophene: Crucial Challenges and the Way Forward

open access: yesAdvanced Science, EarlyView.
This review explores the challenges and progress in borophene research, focusing on synthesis strategies, structural properties, and potential applications. It highlights key experimental breakthroughs, discusses theoretical insights into borophene's unique features, and addresses pathways for overcoming stability and scalability issues.
Zhixuan Li   +3 more
wiley   +1 more source

Indiens ou paysans, peuples de la forêt ou de la montagne ? : vieux débats, nouvelles perspectives

open access: yesCaravelle, 2011
This article tries to answer the following question : up to what point the creation of a generic ethnicity, brought about by Indian mobilization for the last thirty years in Latin America, is enough to go beyond the traditional division between low lands’
Christian Gros
doaj   +1 more source

LAND AND POPULATION ON THE INDIAN RESERVATION OF WISCONSIN: PAST, PRESENT, AND FUTURE [PDF]

open access: yes
The historical relationship between land use and population change among Wisconsin's Indian groups has been strikingly emblematic of the larger American Indian population.
Ceballos, Miguel   +2 more
core   +1 more source

The last Charrua Indian; (Uruguay): analysis of the remains of Chief Vaimaca Perú. [PDF]

open access: yes, 2010
Uruguay is the only Latin American country that at present lacks Native populations and little is known about its prehistoric populations. In the construction of National identity, the unique reference to Natives is about Charra Indians, one of the most ...
Carlos Pizzarossa   +11 more
core   +1 more source

Home - About - Disclaimer - Privacy