Hugo Delfino | Universidad Nacional de Luján (original) (raw)

Libros by Hugo Delfino

Iniciado el siglo XXI la dimensión espacial de la sociedad ha tenido una gran valorización al ser... more Iniciado el siglo XXI la dimensión espacial de la sociedad ha tenido una gran valorización al ser incorporada en gran cantidad de estudios realizados desde diferentes perspectivas disciplinarias. En este sentido la Geografía comienza a ocupar un lugar preponderante en el contexto científico a partir de haber generado los principales aspectos teóricos y procedimientos técnico-metodológicos para el análisis espacial cuantitativo mediante el uso de Sistemas de Información Geográfica. El libro Geografía y Análisis Espacial. Aplicaciones urbano-regionales con Sistemas de Información Geográfica presenta los avances realizados a partir de los diferentes proyectos de investigación realizados en el Grupo de Estudios sobre Geografía y Análisis Espacial con Sistemas de Información Geográfica (GESIG) del Instituto de Investigaciones Geográficas (INIGEO) de la Universidad Nacional de Luján. Se incluyen aspectos teóricos que ubican a la Geografía como ciencia que presenta las bases conceptuales del Análisis Espacial y aplicaciones técnicas en Sistemas de Información Geográfica en las líneas temáticas de la construcción de mapas sociales urbanos, análisis espacial de la salud y de la educación, arqueología espacial, procedimientos de construcción regional, estudios de la expansión urbana y construcción de mapas mentales. El total de las investigaciones han sido realizadas bajo la dirección de Gustavo D. Buzai y los capítulos comparten autoría con los investigadores del GESIG que han trabajado en cada tema: Claudia A. Baxendale, Graciela Cacace, Hugo Delfino, Luis Humacata, Sonia Lanzelotti y Noelia Principi. El libro presenta de qué manera el análisis espacial cuantitativo con Sistemas de Información Geográfica constituye una herramienta fundamental para comprender la realidad territorial urbana y regional para poder actuar sobre ella a través de las prácticas del ordenamiento territorial en la búsqueda de una mayor justicia espacial para la población.

Papers by Hugo Delfino

Ciencia E Investigacion Agraria, Aug 1, 2012

L. Abbott, S. Filippini, H. Delfino and S. Pistorale. 2012. Stability analysis of forage producti... more L. Abbott, S. Filippini, H. Delfino and S. Pistorale. 2012. Stability analysis of forage production in Bromus catharticus (prairie grass) using three methodologies. Cien. Inv. Agr. 39(2): 331-338. Thirteen genotypes of Bromus catharticus (prairie grass) were evaluated for forage production over three years using completely randomized trials with six replicates. The genotype x environment interaction was statistically significant and indicates that the behavior of genotypes differs over time. Once this interaction was detected, we used three methodologies to assess the stability of genotypes: Wricke's ecovalence, the Lin and Binns index, and the Eberhart and Russell model. The methods of Lin and Binns and Eberhart and Russell indicate that genotypes 11, 9, 3 and 4 are stable. They also rule out possible selection of genotypes 2, 10, 1 and 12 for lack of stability or poor adaptation. The correlation among these indices was statistically significant (r=0.61). When using Wricke's ecovalence, there is agreement among the indices for the selection of genotypes 9 and 4, which show good stability. There is no agreement with the other two methods for ruling out unstable genotypes. Considering the three methodologies used, the Lin and Binns index is easiest to apply and interpret because higher productivity always correlates with greater stability, and there are no restrictions on the use of regression. However, it is necessary to accumulate more data prior to the widespread use of these methods.

Latin American and Caribbean Ethnic Studies

We examined the self-reported family trees of 288 adult Argentines from a mid-size city near Buen... more We examined the self-reported family trees of 288 adult Argentines from a mid-size city near Buenos Aires to evaluate how intergenerational transmission of ancestry information matched (or not) anonymized estimates of continental-level genetic ancestry. Intergenerational transmission of ancestry information was inferred from the content of the anonymized family trees, and continentallevel ancestries were inferred from genomic information collected from the participants. We found a high degree of concordance between genetic ancestry estimates and the transmission of ancestry information in ancestors born in Europe, the Middle East, and Southeast Asia. We found the reverse in ancestors who were Indigenous American, sub-Saharan African, or their descendants. Yet, the existence of those ancestors was evident in the genetic ancestry estimates. We extrapolated the presence of such ancestries in family trees post hoc by deducing that some ancestors identified as ‘Argentine’ in family trees were likely of mixed Indigenous- and non-Indigenous-descent, and possibly also sub-Saharan African descent. We describe these findings as products of a process of attrition, in which some ancestries, but not others, have been forgotten (knowingly or unknowingly) over the course of generations, to the point that participants were unaware that ethno-racial mixing occurred within their own families.

American Anthropologist

Biocultural approaches in anthropology originated from a desire to dissolve the nature/culture di... more Biocultural approaches in anthropology originated from a desire to dissolve the nature/culture divide that is entrenched in the discipline. Whereas biocultural approaches were born under the umbrella of medical anthropology, by the late 1990s, biology-centered approaches to bioculturalism had been mostly taken up by human biologists in biological anthropology. It was at this point that biology-inclined approaches began to gel into an informal interdiscipline, biocultural anthropology. Much like any other discipline, biocultural anthropology developed research and professional norms with erected boundaries around acceptable work and workers. We draw from scholarly work in interdisciplinary studies to explore those norms and boundaries from the perspective of our collaborative, multimethod, and interdisciplinary project that combines "biology" and "culture" in unconventional ways. We provide examples of the obstacles, barriers, and risks we experienced and the costs exacted on the research project and the researchers due to the nature of our boundary crossings. By exploring biocultural anthropology from the edges of acceptability, we expose the unacknowledged boundary work in contemporary biocultural anthropology, and by extension, in its parent discipline, anthropology.

Los estudios de distribución y asociación espacial, dentro del análisis geográfi co, sepresentan ... more Los estudios de distribución y asociación espacial, dentro del análisis geográfi co, sepresentan como importantes abordajes metodológicos en el ámbito de la Geografía Médicaaplicada a la población urbana. El Análisis Exploratorio de Datos Espaciales (AEDE) brinda unaserie de técnicas que permiten modelizar la estructura espacial de características analizadas envariables individuales y sus correlaciones. Fueron obtenidos resultados a través de cartografíatemática y gráfi cos interactivos con el objetivo de estudiar la distribución espacial dediagnósticos de enfermedades y su relación con el mapa social de la ciudad de Luján (Argentina).El descubrimiento de un comportamiento espacial inverso entre datos originales y datos índicesllevó a focalizar el estudio en los diagnósticos espacial de enfermedades mentales.Spatial distributions and associations studies, with-in geographical analysis, are presented as important methodological approaches in the fi eld of Medical Geography applied to...

Universidad de Concepción. Departamento de Geografía, Oct 1, 2014

Conference on Applied Statistics in Agriculture, 2001

Many steps are involved in getting data from an experimental unit of an agricultural trial into a... more Many steps are involved in getting data from an experimental unit of an agricultural trial into a final report. Each step may introduce a great variety of errors. Building quality into systems is much more productive than building checks onto the end. Poor quality database have effects on final study results in terms of estimation, significance testing and power; but auditing agricultural trial is a complex process designed to ensure that it will provide a reliable answer to the question being posed. By introducing digit errors into database in a tomato assay, with small sample size, we demonstrate that simple ranges checks allows to detect and therefore correct, the main errors that impact the final study results and conclusions. For investigating significance level and power, two groups of data were simulated, having identical distributions and variances, but different population means. T-tests were carried out and relative frequencies of rejecting Null Hypotheses were determined. We have demonstrate that simple random errors in data affect the conclusions and that some form of data checking is required. Two different methods are analyzed and recommended, exploratory data analysis with and without a second data entry. On the other hand, not all errors that are found by exploratory data analysis are detectable by double data entry.

Journal of Basic and Applied Genetics

Public attitudes about genetics appear to depend on the local context. We analyzed survey respons... more Public attitudes about genetics appear to depend on the local context. We analyzed survey responses obtained in 2015 from 293 residents of Luján, a city in the province of Buenos Aires, Argentina, who self-assessed their knowledge about genetics and their trust in genetic tests. The survey integrated a larger research project for which consenting adult participants shared demographic and genealogical information and provided saliva samples for genetic ancestry analyses. Participants reported little knowledge but high trust in genetic testing when questioned about knowledge and trust. Well-known media stories of DNA-based forensic genetic investigations to identify the victims of state repression during the military dictatorship may have contributed to the high self-assessment of their genetic knowledge expressed by some participants, regardless of educational attainment. Our analysis provides information that could be used as a baseline to begin unraveling the current level of publi...

La Aljaba, Dec 1, 2007

"En este nuevo orden internacional y nacional, la calidad de vida de las personas y la s... more "En este nuevo orden internacional y nacional, la calidad de vida de las personas y la salud y los derechos de todas las mujeres se ven cuestionados así como las condiciones que garantizan su ejercicio se encuentran seriamente limitadas. De esta forma se debilita la democracia ...

Ciencia E Investigacion Agraria, 2012

Ciencias Espaciales, 2015

Ciencia e investigación agraria, 2012