0000000000346776

AUTHOR

F. Moreno

Bases metodológicas para la evaluación, uso y gestión sostenible de los recursos agrarios. Aplicación a la cuenca de Santa Catalina (Argentina)

Los recursos agrarios que son utilizados por el hombre para obtener alimentos y generar bienes económicos son el clima, los suelos, los genotipos vegetales y animales mejorados y las tecnologías. La intensificación en el uso del recurso suelo ha conducido a un deterioro del mismo con disminución en los rendimientos afectando negativamente la rentabilidad de las empresas. Esta situación ha generado serios interrogantes sobre el principio de sostenibilidad de la producción agraria. El desarrollo económico - social del área Centro – Sur de la provincia de Córdoba (Argentina) está directamente vinculado con la producción agraria regional, pues constituye la actividad económica más importante. A…

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Worldwide comparison of ovarian cancer survival: Histological group and stage at diagnosis (CONCORD-2)

Abstract Objective Ovarian cancer comprises several histological groups with widely differing levels of survival. We aimed to explore international variation in survival for each group to help interpret international differences in survival from all ovarian cancers combined. We also examined differences in stage-specific survival. Methods The CONCORD programme is the largest population-based study of global trends in cancer survival, including data from 60 countries for 695,932 women (aged 15–99years) diagnosed with ovarian cancer during 1995–2009. We defined six histological groups: type I epithelial, type II epithelial, germ cell, sex cord-stromal, other specific non-epithelial and non-sp…

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Worldwide comparison of survival from childhood leukaemia for 1995–2009, by subtype, age, and sex (CONCORD-2): a population-based study of individual data for 89 828 children from 198 registries in 53 countries

BACKGROUND: Global inequalities in access to health care are reflected in differences in cancer survival. The CONCORD programme was designed to assess worldwide differences and trends in population-based cancer survival. In this population-based study, we aimed to estimate survival inequalities globally for several subtypes of childhood leukaemia. METHODS: Cancer registries participating in CONCORD were asked to submit tumour registrations for all children aged 0-14 years who were diagnosed with leukaemia between Jan 1, 1995, and Dec 31, 2009, and followed up until Dec 31, 2009. Haematological malignancies were defined by morphology codes in the International Classification of Diseases for …

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Sublimation of icy aggregates in the coma of comet 67P/Churyumov–Gerasimenko detected with the OSIRIS cameras on board Rosetta

Beginning in 2014 March, the OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) cameras began capturing images of the nucleus and coma (gas and dust) of comet 67P/Churyumov¿Gerasimenko using both the wide angle camera (WAC) and the narrow angle camera (NAC). The many observations taken since July of 2014 have been used to study the morphology, location, and temporal variation of the comet's dust jets. We analysed the dust monitoring observations shortly after the southern vernal equinox on 2015 May 30 and 31 with the WAC at the heliocentric distance Rh = 1.53 AU, where it is possible to observe that the jet rotates with the nucleus. We found that the decline of brightness a…

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