Results 41 to 50 of about 592,429 (213)
Construcciones sociales de la salud sexual en mujeres adolescentes de una comunidad rural
Ciencia y CuidadoObjetivo: Indagar cuáles son las construcciones sociales en la salud sexual de las mujeres adolescentes de una comunidad rural. Material y Métodos: Estudio cualitativo fenomenológico hermenéutico, donde participaron mujeres adolescentes de 14 a 19 años ...
Diego Alonso Torres-Camarillo +4 more
doaj +1 more source
Water privatisation and restructuring in Latin America, 2007 [PDF]
, 2007 A detailed survey of developments in water in south America, including the retreat of the multinationals, the development of public sector alternatives, and persistent problems with compensation claims and development bank ...
Hall, David, Lobina, Emanuele
core
Radiative corrections to the Casimir effect for the massive scalar field
, 2003 We compute the $O(\lambda)$ correction to the Casimir energy for the massive $\lambda\phi^4$ model confined between a pair of parallel plates. The calculations are made with Dirichlet and Neumann boundary conditions.
Ambjørn +41 more
core +3 more sources
Near Surface Geophysics, EarlyView.Abstract A better understanding of the near‐surface aquifer system of the Caxambu Water Park, located in the Minas Gerais State, Brazil, has been achieved. The study aimed to identify groundwater reservoirs and flow patterns and contribute to the hydrogeological conceptual model using a multi‐scale geophysical approach.
Emanuele F. La Terra +5 more
wiley +1 more source
Tala de árboles en Costa Rica periodo 2011-2023
Tecnología en MarchaEn este estudio retrospectivo, se presentan con datos oficiales aportados por el Sistema Nacional de Áreas de Conservación (SINAC) de MINAE, la tala de árboles legales e ilegales por año en el periodo del 2011 al 2023.
Darner Mora-Alvarado +2 more
doaj +1 more source
The chaetognatha of the Eastropic Expedition, with notes as to their possible value as indicators of hydrographic conditions [PDF]
, 1959 ENGLISH: The purpose of this study was to investigate the possibility that certain species of Chaetognatha found in Eastern Tropical Pacific waters can serve as biological indicators of oceanographic features. "Indicator" organisms have been found useful
Renner, James A., Sund, Paul N.
core
People and Nature, EarlyView.Abstract Biological invasions are a major driver of biodiversity loss, yet inconspicuous or “cryptic” species often escape detection and public awareness, limiting management responses. We investigated the freshwater jellyfish Craspedacusta sowerbii, likely native to China and now present on six continents, through a 22‐month multilingual online survey
Guillaume Marchessaux +17 more
wiley +1 more source
Tratamiento de lodos generados en el proceso convencional de potabilización de agua
Revista Ingenierías Universidad de Medellín, 2014 Se investigaron los lodos aluminosos del proceso de sedimentación de una planta convencional de potabilización de agua sometidos a ensayos de recuperación de aluminio, adicionando H2SO4, sedimentabilidad y espesamiento.
Johnatan Alberto Gutiérrez-Rosero +4 more
doaj
Tecnología en MarchaEn este estudio se presenta la influencia en términos de indicadores de contaminación fecal que posee el efluente de la Planta de Tratamiento de Aguas Residuales Los Tajos (PTAR Los Tajos) sobre el cauce del río Torres y la desembocadura de la cuenca ...
Darner Mora-Alvarado +2 more
doaj +1 more source
Primera caracterización de un reservorio tropical somero en riesgo en el norte de la Argentina
Ecología Austral, 2022 The study of shallow tropical environments in northwestern Argentina is poorly developed. The Itiyuro reservoir is of major importance for supplying drinking water to more than 100000 people in the San Martin department.
Florencia S. Álvarez Dalinger +2 more
doaj +1 more source