Results 71 to 80 of about 150,707 (277)

Implementación y estandarización del método 2320B SM Ed.22/2012 para la determinación de alcalinidad total en agua en el laboratorio de control de calidad del agua de la empresa de acueducto y alcantarillado de Pereira S.A E.S.P [PDF]

open access: yes, 2016
Se realizó la implementación y estandarización del método 2320B del standard methods for the examination of wáter and wastewater Ed. 22 de 2012 para la determinación de alcalinidad total por titulación potenciométrica en un titulador automático en ...
Bautista Muñoz, Natalia
core  

THE AESTHETICS OF URBAN METABOLISM: Landscape, Design and the Politics of In/Visibility

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract In this article, we chart the evolving aesthetic contours of urban metabolism across London, focusing on the River Lea and Thamesmead to the north and south of the River Thames, respectively. We begin in the nineteenth century, when these two sites formed critical nodes within a new sewerage system that relegated the city’s circulatory flows ...
Ben Platt, Zuhri James
wiley   +1 more source

Epidemiology: a tool for the assessment of risk [PDF]

open access: yes, 2001
The purpose of this chapter is to introduce and demonstrate the use of a key tool for the assessment of risk. The word epidemiology is derived from Greek and its literal interpretation is 'studies of people'.
Blumenthal, U   +3 more
core  

Extreme value theory applied to the millennial sunspot number series [PDF]

open access: yes, 2018
In this work, we use two decadal sunspot number series reconstructed from cosmogenic radionuclide data (14C in tree trunks, SN-14C and 10Be in polar ice, SN-10Be) and the Extreme Value Theory to study variability of solar activity during the last 9 ...
Acero, F. J.   +4 more
core   +2 more sources

AGUA RESIDUAL HOSPITALARIA: EVALUACION PRELIMINAR

open access: yes, 2013
El objetivo de esta investigación consistió en evaluar el desempeño de un reactor anaerobio de flujo ascendente de biomasa inmovilizada (RAFABI) tratando un efluente hospitalario real. Se estudió la remoción de materia orgánica y toxicidad, por medio de análisis como UV254, DQOfiltrada y determinación del porcentaje de inhibición en el crecimiento de ...
PORRAS TORRES, MÓNICA   +2 more
openaire   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

open access: yesIntegrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez   +4 more
wiley   +1 more source

Prototipo para la recolección y reutilización de aguas residuales en la sede del Claustro de la Universidad Católica de Colombia [PDF]

open access: yes, 2015
Trabajo de InvestigaciónEl enfoque de este trabajo está basado en la implementación de un prototipo para el tratamiento del agua residual de la sede del Claustro de la Universidad Católica de Colombia, específicamente el agua de los lavamanos, siendo ...
Vargas-León, Luis Alberto
core  

Infectious bacterial keratitis management in a Swedish region: Risk factors, treatment and time‐to‐resolution

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To report treatment patterns, time‐to‐resolution (TTR) and aetiologies of bacterial keratitis (BK) infections treated in a specialized hospital‐based cornea clinic in Sweden. Methods Retrospective study based on electronic health records screened during the period 2010–2019. The study included only culture‐confirmed cases of BK.
Jenny Roth   +5 more
wiley   +1 more source

Desinfección de agua residual hospitalaria aplicando ozono, ozono/UV y UV [PDF]

open access: yes, 2013
En esta investigación se evaluó la eficiencia en la inactivación de la bacteria Escherichia- coli presente en aguas residuales hospitalarias aplicando ozono, combinación ozono/UV y UV. La dosis aplicada de ozono fue de 0.13±0.04 mgO3 y la dosis de UV fue
Velásquez Medina, Daniel Felipe
core  

Representation of obligate groundwater‐dwelling copepod diversity in European protected areas

open access: yesConservation Biology, EarlyView.
Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli   +7 more
wiley   +1 more source

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