Results 31 to 40 of about 8,910,109 (261)
Volatile substance misuse among high school students in South America [PDF]
, 2011 This article summarizes data from a 2004 study of over 300,000 high school students (aged 13–18 years) in nine South American countries. A probabilistic sample targeted urban secondary schools, utilizing a self-administered questionnaire on prevalence ...
Delva, Jorge +3 more
core +1 more source
A mitogenomic timetree for Darwin’s enigmatic South American mammal Macrauchenia patachonica
Nature Communications, 2017 The unusual mix of morphological traits displayed by extinct South American native ungulates (SANUs) confounded both Charles Darwin, who first discovered them, and Richard Owen, who tried to resolve their relationships.
M. Westbury +20 more
semanticscholar +1 more source
Emissions from pre-Hispanic metallurgy in the South American atmosphere [PDF]
, 2014 Peer reviewedPublisher ...
De Vleeschouwer, François +7 more
core +13 more sources
L'Espace Politique, 2017 In the 2000s, the political integration project of South America gained prominence from the initiative of the countries of the region, especially Brazil. International security was a central theme in the search for South American political autonomy.
Licio Caetano do Rego Monteiro
doaj +1 more source
Emergence of wheat blast in Bangladesh was caused by a South American lineage of Magnaporthe oryzae
BMC Biology, 2016 In February 2016, a new fungal disease was spotted in wheat fields across eight districts in Bangladesh. The epidemic spread to an estimated 15,000 hectares, about 16 % of the cultivated wheat area in Bangladesh, with yield losses reaching up to 100 ...
Tofazzal Islam +31 more
semanticscholar +1 more source
Inter- and intracontinental migrations and local differentiation have shaped the contemporary epidemiological landscape of canine parvovirus in South America [PDF]
, 2018 Canine parvovirus (CPV) is a fast-evolving single-stranded DNA virus that causes one of the most significant infectious diseasesof dogs. Although the virus dispersed over long distances in the past, current populations are considered to be ...
Aldaz, Jaime +11 more
core +1 more source
Fire Ants (Solenopsis spp.) and Their Natural Enemies in Southern South America
Psyche: A Journal of Entomology, 2012 We review the fire ant research conducted by the ARS-South American Biological Control Laboratory (SABCL) since 1987 to find a complex of natural enemies in southern South America and evaluate their specificity and suitability for field release as self ...
Juan Briano +2 more
doaj +1 more source
L'Espace Politique, 2017 In the 2000s, the political integration project of South America gained prominence from the initiative of the countries of the region, especially Brazil. International security was a central theme in the search for South American political autonomy.
Licio Caetano do Rego Monteiro
doaj +1 more source
Instanton solutions in open superstring field theory
Journal of High Energy Physics, 2022 Open superstring field theory admits a “hybrid” formulation where N = 1 D = 4 supersymmetry is manifest for Calabi-Yau compactifications to four dimensions.
Nathan Berkovits +2 more
doaj +1 more source
Computational phylogenetics and the classification of South American languages [PDF]
, 2019 In recent years, South Americanist linguists have embraced computational phylogenetic methods to resolve the numerous outstanding questions about the genealogi- cal relationships among the languages of the continent.
Chousou‐Polydouri, Natalia +1 more
core +4 more sources