359 research outputs found
Le géographe et le livre
No full textColombani A. J.Colombani A. J. Le géographe et le livre. In: L'Espace géographique, tome 28, n°3, 1999. pp. 282-283
M.C. Colombani, J. Ferguson y J. M. Gerardi (Comps.) (2018). Miradas interdisciplinarias sobre el Mundo Antiguo. Encuentros de Historia, Filosofía y Literatura, Mar del Plata, Universidad Nacional de Mar del Plata, pp. 394
No full textRevisión del libro Miradas interdisciplinarias sobre el Mundo Antiguo. Encuentros de Historia, Filosofía y Literatura por M.C. Colombani, J. Ferguson y J. M. Gerardi (Comps.
Scenario Modelling of Climate Change's Impact on Salinization of Coastal Water Resources in Reclaimed Lands
No full textAbstractA numerical model accounting for variable density flow and transport was built up to quantify the actual and future (2050) salinization trends of a coastal aquifer in the Po delta (Northern Italy). SEAWAT 4.0 was employed to model the interaction between the surface drainage system and the underlying aquifer. PEST was employed for inverse parameter calibration using hydraulic heads and groundwater salinities as constraints. The calibrated model was used to predict the behavior of the coastal aquifer using a multiple scenario approach: increase in evapotranspiration induced by temperature increase; increase in the frequency of extreme high rainfall events; extreme drought conditions; and irrigation canals dewatering due to salinization of the Po River branches. For each scenario, two sub-scenarios were established to account for the projected local sea level rise. The first three scenarios have only minimal effects on the aquifer salinization, while the fourth forecasts a severe aquifer salinization due to enhanced upward fluxes of saline and hypersaline groundwater. The scenarios quantified the possible future salinization trends of groundwater and could be useful to identify adaptation strategies which allow to better manage water resources of this and similar areas. Results show that the Po delta will experience a significant salinization by 2050 and that the major cause is autonomous salinization via seepage of saline groundwater rather than enhanced salt-water intrusion due to sea level rise. The enhanced autonomous salinization will increase the salt export into the drainage canals that are also employed for irrigation, posing serious treats to the local flourishing agricultural economy
Comparison of digestibility and nitrogen metabolism of growing lambs fed with pellet diets containing sweet white lupin seeds, sunflower meal and soybean meal
No full textStima del valore nutritivo delle polpe secche di barbabietola impiegate in una prova di accrescimento su agnelli
No full textLes variations extrêmes au lac Tchad : l'assèchement est-il possible ?
No full textIs Lake Chad going to disappear ?
Sixty years ago, General Tilho has written a paper, published in Annales de Géographie about the possibility to see Lake Chad without any water. After the knowledge he had about this topic, he made some predictions.
Using all the new data collected during the past sixty years, authors have tried to evaluate these ancient predictions and also to make new ones.
The conclusion is that if the climate does not fondamentaly change, a permanent drying of Lake Chad does not seems to be feared since a single year with heavy rains is enough to bring water up to a normal level ; but also that if man does not set an environmentaly sound management of the Lake Chad catchment there is an actual danger for a disappearance of Lake Chad.Le lac Tchad est-il en voie de disparition ?
Il y a soixante ans, le général Tilho a écrit un article publié dans les Annales de Géographie sur la possibilité de voir le lac Tchad sans une goutte d'eau. A partir des connaissances dont il disposait alors, il fit quelques prévisions.
Utilisant toutes les données nouvelles recueillies au cours des soixante dernières années, les auteurs se sont efforcés d'apprécier les prévisions d'autrefois et d'en proposer quelques autres.
La conclusion est que le climat n'a pas fondamentalement changé; un assèchement constant du lac Tchad ne semble pas à craindre, en ce sens qu'une seule année de fortes pluies suffit à ramener l'eau du lac au niveau normal. Toutefois, si l'homme ne se préoccupe pas d'un aménagement de l'environnement, on pourrait se trouver en présence d'un risque de disparition du lac.Pouyaud B., Colombani J. Les variations extrêmes au lac Tchad : l'assèchement est-il possible ?. In: Annales de Géographie, t. 98, n°545, 1989. pp. 1-23
Arsenic speciation in a contaminated coastal aquifer below a former fertilizer production plant
No full textInorganic arsenic has been widely used during
the production cycle of fertilizers and pesticides
and leakage into sub-soils and shallow
groundwater has been reported in the recent
literature (Root et al. 2009; Cancés et al. 2005).
Despite of this, most of the scientific papers has
been focused on natural arsenic mobilization
and geochemical cycling in the subsurface
(Hering J. G. and Kneebone 2002; Lin and Puls
2003). Thus, more studies are still needed to
understand the mobilization/immobilization
mechanisms of arsenic in highly contaminated
sites. Since the arsenic mobilization is usually
driven by redox processes, pH changes and
ionic strength of the solutions (Smedley and
Kinniburgh 2002), it is foremost important to
study its behavior in coastal aquifers where all of
these factors essentially coincide. In fact, like for
the surface waters, the groundwater mixing zone
can affect the biogeochemical cycling of metals
and nutrients, which are sensitive to changes in
salinity and redox potential (Slomp et al. 2004).
The study site is a former fertilizer plant located
near the shore line, in Italy. The overall
groundwater geochemistry at the study site has
been documented in a previous paper
(Mastrocicco et al. 2011). Within this framework,
a detailed characterization of arsenic in
groundwater was performed to elucidate the
mobilization/immobilization mechanisms actually
occurring at the site
Bridge load testing and monitoring using conventional and image-based measurement strategies
No full textSubmission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01The student, Isaias Colombani, accepted the attached license on 2021-12-09 at 17:00.The student, Isaias Colombani, submitted this Thesis for approval on 2021-12-09 at 17:40.This Thesis was approved for publication on 2021-12-10 at 10:04.DSpace SAF Submission Ingestion Package generated from Vireo submission #17443 on 2022-04-06 at 17:18:07Made available in DSpace on 2022-04-29T21:47:48Z (GMT). No. of bitstreams: 2
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Previous issue date: 2021-12-10Embargo set by: Seth Robbins for item 123395
Lift date: 2024-04-29T21:47:53Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemAuthor requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I OnlyBridge load rating analysis has been used for decades to assess the safe load-carrying capacity of bridges in the United States. As time progressed, bridges that were rated using the American Association of State Highway and Transportation Officials (AASHTO) analytical load rating methods began to show lower load capacities than those that the bridges have proven to carry through load testing alternatives. This is especially true for reinforced concrete (RC) slab bridges which have complicated load path distributions and often benefit from load tests. This has resulted in unnecessary roadway restrictions, bridge closures, and other inconveniences to the communities that rely on these bridges for daily commute. Consequently, to provide better accuracy, the AASHTO Manual for Bridge Evaluation (MBE) offers the option of conducting load rating using field testing as an alternative to analytical computing rating factors for bridges.
In this study, diagnostic and proof load field tests are performed on two RC slab bridges to study the feasibility and constraints of using bridge load testing as a load rating method. AASHTO MBE and Effective Strip Width (EW) load rating approaches are used to compare results with AASHTO analytical load rating procedures. The results demonstrate the advantages to load testing over less reliable analytical load rating procedures. To reduce the complexity, time, and cost associated with instrumenting bridges for load testing, the study explores the feasibility of performing load tests using image-based techniques. Images of loaded bridges captured using consumer-grade cameras are used to monitor the displacement of the bridges during testing. The results from the field and laboratory studies show compelling results when compared to conventional Linear Variable Differential Transformer (LVDT) sensors. Furthermore, the studies show that image-based bridge monitoring techniques have great potential in conducting quick and cost-effective field-based load ratings of bridges. The research also investigates alternative approaches to field tests for structural monitoring of bridges. A satellite image-based technique is explored to evaluate the potential of this technology to measure small displacements in bridges. Moreover, the technique is applied to three different bridges to validate the approach and the simplicity of its application for bridge monitoring. The results show promising potential in the method to be used as a structural health monitoring strategy for bridges
10. Las voces de Teogonía y Trabajos y Días. La hora de la política: un diálogo abierto con Platón.
No full textO presente trabalho se propõe a pensar as continuidades que ocorrem nas obras de Hesíodo, Teogonia e Os Trabalhos e os Dias, em relação à noção de kosmos e ver como essas continuidades se dão, tanto em relação à ordem cósmica, como ao universo social, para implantar, por sua vez, um modelo de relação saber-poder a partir dos agentes que são favoráveis a essa ordem. A proposta é dada no âmbito do deslocamento da poesia para a filosofia, compreendendo tanto o logos poético como a filosofia, como estruturas de pensamento que, sob a lógica especial que as sustentam, dão conta da forma como que se relacionam as palavras e as coisas em uma determinada configuração histórica.
Palavras-chave | Saber | poder | linguagem
Abstract
The present work proposes to consider continuities that occur in the works of Hesiod, Theogony and Works and Days, in relation to the notion of kosmos and see how these continuities present themselves, both in relation to the cosmic order and to the social universe, to deploy, in turn, a model of knowledge-power relationship originating with agents favorable to this order. The proposal takes into account the shift from poetry to philosophy, including both the poetic logos as well as concerns of philosophy, such as structures of thought that, conscious of the particular logic that sustains them, are able to take into consideration how they relate to the words and things of their particular historical configuration.
Keywords | Knowledge | power | language
María Cecilia Colombani é Professora titular de problemas filosóficos e antropologia filosófica da Facultad de Filosofía, Ciencias de la Educación y Humanidades da Universidad de Morón. Investigadora principal e coordenadora de projetos de pesquisa da Universidad de Morón. Professora titular de história da filosofia antiga e problemas especiais de filosofia antiga na Facultad de Humanidades da Universidad Nacional de Mar del Plata. Autora de diversos capítulos de livros e de mais de uma centena de artigos apresentados em congressos da área. Autora de Hesíodo, Una Introducción Crítica (Buenos Aires, Santiago Arcos Editor, 2005), Homero, Una introducción crítica (Buenos Aires, Santiago Arcos Editor, 2005) e Foucault y la política (Buenos Aires, Prometeo, 2009).
María Cecilia Colombani is a Full Professor of philosophical anthropology and philosophical problems in the School of Philosophy, Educational Sciences and Humanities at the University of Morón, Argentina and Principal Researcher and Coordinator of research projects at the University of Morón. She is also Full Professor of the history of ancient philosophy in the School of Humanities of the Universidad Nacional de Mar del Plata. Author of several book chapters and more than a hundred papers presented at conferences in the field, she has published Hesíodo, Una Introducción Crítica (Hesiod, A Critical Introduction, Buenos Aires, Santiago Arcos Editor, 2005), Homero, Una introducción crítica (Homer, A Critical Introduction, Buenos Aires, Santiago Arcos Editor, 2005) and Foucault y la política (Foucault and Politics, Buenos Aires, Prometheus, 2009)
Gastrosquise: experiência de 19 anos.
No full textTrabalho de Conclusão de Curso - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Departamento de Pediatria, Curso de Medicina, Florianópolis, 199
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