Dietary patterns and risk of ductal carcinoma of the breast: A factor analysis in Uruguay

Breast cancer (BC) shows very high incidence rates in Uruguayan women. The present factor analysis of ductal carcinoma of the breast, the most frequent histological type of this malignancy both in Uruguay and in the World, was conducted at a prepaid hospital of Montevideo, Uruguay. We identified 111 cases with ductal BC and 222 controls with normal mammograms. A factor analysis was conducted using 39 food groups, allowing retention of six factors analyzed through logistic regression in order to obtain odds ratios (OR) associated with ductal BC. The low fat and non-alcoholic beverage patterns were inversely associated (OR=0.30 and OR=0.45, respectively) with risk. Conversely, the fatty cheese pattern was positively associated (OR=4.17) as well as the fried white meat (OR=2.28) and Western patterns (OR 2.13). Ductal BC shared similar dietary risk patterns as those identified by studies not discriminating between histologic type of breast cancer

Movimiento obrero y crisis en Jalisco

Este trabajo es producto del curso de Psicología del Trabajo que forma parte del quinto semestre de la carrera de Relaciones Industriales del ITESO. Es un análisis preliminar sobre las relaciones que guarda el movimiento obrero frente al Estado y la iniciativa privada en el marco de la profunda crisis económica que vive el país desde finales de 1982. Dada la amplitud y complejidad del tema, este trabajo debe considerarse como un primer acercamiento que intenta identificar los elementos más importantes de este proceso.ITESO, A.C

Do migrant remittances promote human capital formation? Evidence from 89 developing countries

The few published empirical studies on the effect of migrant remittances on educational attainments are roughly based on cross-sectional microdata from household surveys. This paper applies the generalised method of moments (GMM) estimator on aggregate level data from 1970 to 2010 in five-year intervals to examine the impact of migrant remittances on human capital formation in 89 developing countries. The estimation results show that, on average, an increase in migrant remittance inflows by 1% is associated with a 2% rise in years of schooling at both the secondary and tertiary levels. This suggests that migrant remittances have the potential to relax liquidity constraints and generate spillover effects that facilitate more schooling opportunities in remittance-receiving countries

Ensaio regional de variedades de milho na Região Sul - safra 2008/09.

A rede regional de ensaios de variedades de Milho tem por objetivo avaliar o comportamento de variedades comerciais de milho na região sul do Brasil. O resultado dos ensaios é publicado anualmente no Livro das Indicações Técnicas para o Cultivo de Milho e de Sorgo no RS. Esses resultados também servem para determinação do Valor de Cultivo e Uso (VCU), com vistas à extensão da indicação de uso de cultivares comerciais para o RS

Comportamento de variedades sintéticas de milho no Rio Grande do Sul.

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CosmoHub: Interactive exploration and distribution of astronomical data on Hadoop

We present CosmoHub (https://cosmohub.pic.es), a web application based on Hadoop to perform interactive exploration and distribution of massive cosmological datasets. Recent Cosmology seeks to unveil the nature of both dark matter and dark energy mapping the large-scale structure of the Universe, through the analysis of massive amounts of astronomical data, progressively increasing during the last (and future) decades with the digitization and automation of the experimental techniques. CosmoHub, hosted and developed at the Port d'Informació Científica (PIC), provides support to a worldwide community of scientists, without requiring the end user to know any Structured Query Language (SQL). It is serving data of several large international collaborations such as the Euclid space mission, the Dark Energy Survey (DES), the Physics of the Accelerating Universe Survey (PAUS) and the Marenostrum Institut de Ciències de l'Espai (MICE) numerical simulations. While originally developed as a PostgreSQL relational database web frontend, this work describes the current version of CosmoHub, built on top of Apache Hive, which facilitates scalable reading, writing and managing huge datasets. As CosmoHub's datasets are seldomly modified, Hive it is a better fit. Over 60 TiB of cataloged information and 50×10 astronomical objects can be interactively explored using an integrated visualization tool which includes 1D histogram and 2D heatmap plots. In our current implementation, online exploration of datasets of 10 objects can be done in a timescale of tens of seconds. Users can also download customized subsets of data in standard formats generated in few minutes.CosmoHub has been partially funded through projects of the Spanish national program “Programa Estatal de I + D + i” of the Spanish government. The support of the ERDF fund is gratefully acknowledged

Primers microssatélites validados em tilápia do nilo no gene da aromatase cerebral (Cyp19b)

Aromatase cytochrome P450 is an enzyme that is responsible for a key step in the biosynthesis of estrogens, which is linked to reproduction. This enzyme is a product of the gene Cyp19 and catalyzes the formation of estrogen from androgen. Estrogen is essential for the development of the gonads and various other physiological processes, ranging from normal growth to reproductive behavior. This study aimed at validation of primers for  microsatellite locus in the regulatory region of gene Cyp19b in Oreochromis niloticus. Thirty samples of three strains were  analyzed: Chitralada and Supreme from larviculture Aquabel, and GIFT from the State University of Maringá (Paraná, Brazil). After extraction of DNA, the samples were subjected to PCR using primers designed to flank a microsatellite region. After confirmation of amplification, the samples were subjected to electrophoretic separation in the apparatus Origins  (Elchrom Scientific, USA) to identify the alleles. A polymorphism in the regulatory region of Cyp19b was identified in the three strains. Three alleles, ranging from 123 to 141 bp, were observed. The primers for amplification of microsatellite in the regulatory region of gene Cyp19b were efficient and, therefore, they may be used for identification of mutations in this region in typical microsatellite analysis.  Studies are being conducted to correlate the effect of temperature with the alleles observed in the animals sampled and the resulting sex ratio.A aromatase citocromo P450 é uma enzima que é responsável por um passo chave na biossíntese de estrogênio que está ligado à reprodução. Esta enzima é um produto do gene Cyp19 e catalisa a formação de estrogênio a partir de androgênio. O estrogênio é essencial para o desenvolvimento das gônadas e diversos processos fisiológicos, que vão desde o crescimento normal até o comportamento reprodutivo. Este estudo teve como objetivo a validação de primers para locus microssatélite presente na região regulatória do gene Cyp19b de Oreochromis niloticus. Trinta amostras de três linhagens: Chitralada e Supreme da larvicultura Aquabel e GIFT da Universidade Estadual de Maringá – PR foram analisadas. Após a extração de DNA as amostras foram submetidas a PCR utilizando os primers desenhados para flanquear a região microssatélite. Após a confirmação da amplificação as amostras foram submetidas à separação eletroforética no aparato Origins  (Elchrom Scientific, USA) para identificação dos alelos. Foi verificada a existência um polimorfismo na região promotora de  Cyp19b  nas três linhagens. Observamos três alelos, variando entre 123 e 141 pb. Os primers para a amplificação de microssatélite na região regulatória do gene Cyp19b foram eficientes e, portanto, seu uso para identificação de mutações nesta região pode ser empregada na análise típica de microssatélite. Estudos estão sendo conduzidos para correlacionar o efeito da temperatura com os alelos observados nos animais amostrados e a proporção de sexo resultante.&nbsp

Enrichment of trace elements in the clay size fraction of mining soils

Reactive waste dumps with sulfide minerals pro- 14 mote acid mine drainage (AMD), which results in water and 15 soil contamination by metals and metalloids. In these systems, 16 contamination is regulated by many factors, such as mineral- 17 ogical composition of soil and the presence of sorption sites 18 on specific mineral phases. So, the present study dedicates 19 itself to understanding the distribution of trace elements in 20 different size fractions (<2-mm and <2-μm fractions) of min- 21 ing soils and to evaluate the relationship between chemical 22 and mineralogical composition. Cerdeirinha and Penedono, 23 located in Portugal, were the waste dumps under study. The 24 results revealed that the two waste dumps have high degree of 25 contamination by metals and arsenic and that these elements 26 are concentrated in the clay size fraction. Hence, the higher 27 degree of contamination by toxic elements, especially arsenic 28 in Penedono as well as the role of clay minerals, jarosite, and 29 goethite in retaining trace elements has management implica- 30 tions. Such information must be carefully thought in the reha- 31 bilitation projects to be planned for both waste dumps