Results 51 to 60 of about 298,076 (394)

UN/ESA Workshops on Basic Space Science: An Update on Their Achievements [PDF]

open access: yesAnnals of the New York Academy of Sciences 822(1997)621-630, 1999
During the second half of the twentieth century, expensive observatories are being erected at La Silla (Chile), Mauna Kea (Hawai), Las Palmas (Canary Island), and Calar Alto (Spain), to name a view. In 1990, at the beginning of The Decade of Discovery in Astronomy and Astrophysics (Bahcall [2]), the UN/ESA Workshops on Basic Space Science initiated the
arxiv   +1 more source

Predictive Models for the Medical Diagnosis of Dengue: A Case Study in Paraguay

open access: yesComput. Math. Methods Medicine, 2019
Early diagnosis of dengue continues to be a concern for public health in countries with a high incidence of this disease. In this work, we compared two machine learning techniques: artificial neural networks (ANN) and support vector machines (SVM) as ...
Jorge Daniel Mello-Román   +3 more
semanticscholar   +1 more source

Achieving conservation through cattle ranching: The case of the Brazilian Pantanal

open access: yesConservation Science and Practice, EarlyView., 2023
Cattle ranching in the Pantanal should be part of the conservation agenda and we show the pathways to it. Abstract Cattle ranching in the ~140,000 km2 Brazilian Pantanal is considered one of the most important cases of sustainable use of natural resources in the global south. The region has had a successful history of balancing environmental protection
Rafael Morais Chiaravalloti   +6 more
wiley   +1 more source

Incidencia de lesiones quirúrgicas de vías biliares en el Servicio de Cirugía del Hospital Militar Central FFAA. Periodo Enero 2018 a Junio 2019

open access: yesCirugía Paraguaya, 2020
Se realizó un estudio observacional retrospectivo descriptivo de corte trasversal en 607 pacientes operados para determinar la incidencia de lesiones quirúrgicas de vías biliares durante el periodo enero 2018 a junio 2019 en el Servicio de Cirugía del ...
Darío Fretes   +4 more
doaj   +1 more source

The Tomaraho Conception of the Sky [PDF]

open access: yesProceedings of the International Astronomical Union / Volume 7 / Issue S278 / January 2011, 2011
The small community of the Tomaraho, an ethnic group culturally derived from the Zamucos, became known in the South American and world anthropological scenario in recent times. This group, far from the banks of the Paraguay river, remained concealed from organized modern societies for many years.
arxiv   +1 more source

Phylogenetic Assessment of Freshwater Mussels Castalia ambigua and C. inflata at an Ecotone in the Paraguay River Basin, Brazil Shows That Inflated and Compressed Shell Morphotypes Are the Same Species

open access: yesDiversity, 2020
The phylogeny and taxonomy of freshwater mussels of the genus Castalia in South America is complicated by issues of morphological plasticity and limited molecular genetic data.
Miluska Olivera-Hyde   +8 more
semanticscholar   +1 more source

Sustainability Assessment of Agricultural Systems in Paraguay: A Comparative Study Using FAO’s SAFA Framework

open access: yesSustainability, 2019
Sustainability is a topic that is at the center of current discussions in the political, economic, social, and environmental fields. For its analysis, an integral and multidisciplinary vision is needed.
A. Soldi   +4 more
semanticscholar   +1 more source

Preliminary report on the Myrmeleontidae (Neuroptera) of Paraguay [PDF]

open access: yes, 2010
Ten species of antlions are confirmed as present in Paraguay and seven additional species are suspected to be present there. All of the species are found also in Argentina and Brazil except for Eremoleon pulchra (Esben- Petersen) which is endemic to ...
Stange, Lionel A.
core   +1 more source

Impacts of geopolitics and policy on Latin American biodiversity and water resources

open access: yesAgribusiness, EarlyView.
Abstract Latin America is a major agricultural producer with important natural resources. Efforts have been made to protect sensitive areas but are hindered by agricultural trade disruptions outside the control of individual countries due to globally integrated crop markets.
Jerome Dumortier   +2 more
wiley   +1 more source

Factores precipitantes de la insuficiencia cardiaca en adultos del Hospital Militar, Asunción 2023

open access: yesRevista Peruana de Investigación en Salud
Objetivo: describir las características demográficas y clínicas y determinar los factores precipitantes de la insuficiencia cardiaca. La importancia de conocer estos factores permitirá aplicar medidas que impidan o retrasen las descompensaciones ...
Raúl E. Real-Delor   +10 more
doaj   +1 more source

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