In transboundary river basins, political borders oftentimes trace shared rivers across a basin. A border between territories can be seen as a space that is separated; however, it is actually one with the potential to unite populations and environments. A river basin is generally defined by its topography and hydrology....
Full Text:
Costa Rica, Panamá
and five indigenous communities: the Bríbrí, Naso, Cabecar, Brunca and Ngöbe. This
Analytical methods capable of trace measurement of semi-volatile organic
compounds (SOCs) are necessary to assess the exposure of tadpoles to contaminants as a
result of long-range and regional atmospheric transport and deposition. The following
study compares the results of two analytical methods, one using pressurized liquid
extraction (PLE) and the...
Full Text:
Massey Simonich,†‡* David Bradford,§ Carlos Davidson,|| Nita 28
Tallent-Halsell§ 29
30
Background:
As Zika virus continues to spread, decisions regarding resource allocations to control the
outbreak underscore the need for a tool to weigh policies according to their cost and the
health burden they could avert. For example, to combat the current Zika outbreak the US
President requested the allocation of...
Full Text:
Nacional de Niños “Dr. Carlos
Sáenz Herrera”, San José, Costa Rica, 5 Programa de Control de Vectores
The three studies that comprise this dissertation seek to answer significant
questions in paleoclimatology through unconventional applications of ice core
greenhouse gas data. These studies involve different gases and span the interval of time
between the Last Glacial Maximum and the Industrial Revolution, but are united by their
nontraditional use...
Full Text:
together with a Monte Carlo approach to constrain the phase lag to within several
decades. Our results
Background: We present a model for reporting accelerometer paradata (process-related data produced from survey administration) collected in the International Study of Childhood Obesity Lifestyle and the Environment (ISCOLE), a multi-national investigation of >7000 children (averaging 10.5 years of age) sampled from 12 different developed and developing countries and five continents....
Full Text:
, Luis Carlos de
Oliveira, MSc, Leandro Rezende, BSc, Luis Fabiano, BSc, Diogo Bezerra, BSc,
Gerson
BACKGROUND: We compared 24-hour waist-worn accelerometer wear time characteristics of 9-11 year old children
in the International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) to similarly aged U.S. children
providing waking-hours waist-worn accelerometer data in the 2003-2006 National Health and Nutrition Examination
Survey (NHANES).
METHODS: Valid cases were...
Full Text:
Matsudo, MD, PhD, Timoteo Araujo, MSc, Luis
Carlos de Oliveira, MSc, Leandro Rezende, BSc, Luis Fabiano
Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species’ threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that...
Full Text:
-Philippe L�egar�e139,
Susan G. Letcher140, Nick A. Littlewood141, Carlos A. L�opez-Quintero142, Mounir
This paper addresses how the implementation of North American Free Trade Agreement (NAFTA) has affected the use of Information Technology (IT) in Mexico. In order to answer this question this thesis analyzes the direct and indirect effects of NAFTA on Mexico’s economic and regulatory environment, and how this influences the...