Buscar
Mostrando ítems 21-30 de 4523
Acerca de las relaciones entre la(s) sociología(s) de la ciencia y de la tecnología : pasos hacia una dinámica de mutuo beneficioOn the relationship between the sociology/sociologies of science a that of technology : steps towards a dynamics of mutual benefits
(Universidad Nacional de Quilmes, 1996-12)
Inspirados por desarrollos en la sociología de la ciencia -especialmente por el Programa Empírico del Relativismo (PER)- en 1984 Pinch y Bijker lanzan en la sociología de la tecnología el modelo de la Construcción Social ...
Marking classwork in primary science: Written feedback practices in state schools in Buenos Aires, Argentina
(Routledge Journals, Taylor & Francis Ltd, 2020-05)
Individual written feedback in the form of teacher marking of student classwork is widely understood to benefit students, but remains under-researched. We analysed how 1736 student science activities within 82 seventh-grade ...
Covalent bond indices and ionicities from similarity measures
(Elsevier Science, 2007-07)
This work proposes the use of the mathematical concepts of similarity and distance in metric spaces to relate the covalency and ionicity indices of chemical bondings. Numerical results arising from the Bray-Curtis and ...
Urban environmental impact matrices development: Assessment indices incorporation
(Pergamon-Elsevier Science Ltd, 2005-07)
A methodology which can be applied to the environmental impact study (EIS) and which facilitates to analyse the urban variables as a whole is explained. The work can be done in different scales (urban sectors and areas) ...
Application of biological indices and a mathematical model for the detection of metal coagulant overload in a laboratory scale activated sludge reactor with phosphate simultaneous precipitation
(Elsevier Science Sa, 2011-08)
Phosphorous simultaneous precipitation by coagulants reduces the volatile solids percentage which can be deleterious to the biological process. In this work a mathematical model was developed and biological indices were ...
Procrustes analysis as a tool for land management
(Elsevier Science, 2010-03)
Generalized Procrustes analysis (GPA) is a multivariate technique that involves transformations of data matrices to provide optimal comparability. We propose GPA to quantify the concordance among sets of variables that ...
Multi-Indicator Harvest Strategies for Data-Limited Fisheries: A Practitioner Guide to Learning and Design
(Frontiers Media, 2021-12)
As the world population grows, fisheries practitioners will be under increased pressure to address global challenges in data-limited fisheries management. With a focus on addressing localized and case-specific management ...
Fish-trematode systems as indicators of anthropogenic disturbance: Effects of urbanization on a small stream
(Elsevier Science, 2018-10)
Parasites have proven to display high responsiveness to anthropogenic stress, having, therefore a considerable value as bioindicators. We analysed the variability in the structure of parasite populations and assemblages ...
Inferring the occurrence of regime shifts in a shallow lake during the last 250 years based on multiple indicators
(Elsevier Science, 2020-05)
Regime shifts are ecosystem-scale phenomena. In lake studies, most supporting evidence is frequently based on a single state variable. We examined the sediment record of the shallow lake Blanca Chica (Argentina) to explore ...
A municipal solid waste indicator for environmental impact: Assessment and identification of best management practices
(Elsevier, 2019-11)
The objective of this study was to develop an aggregate indicator to assess the environmental impact of municipal solid waste management in the small municipalities of the state of São Paulo, Brazil. Additionally, the study ...