Suchergebnisse

Menopause is associated with the general ageing process and marks the end of follicular depletion, a process that begins in the intrauterine stage and lasts throughout the lifetime of women until their reproductive senescence. Controversy persists about whether the age at menopause is sensitive to the ecological determinants prevailing during the lifecycle or whether it has a predominantly genetic component that would allow groups of women to be characterized with respect to particular menstrual characteristics manifested throughout their fertile life. By contrast, there is a definite secular trend in age at menarche in populations that have registered improvements in their environment: sexual maturation is closely associated with the general processes of growth and development. These aspects were analysed in a sample of Spanish women, mothers and daughters, born between 1883 and 1941. The results show (a) indications – although not conclusive – of a secular trend in the age at menopause, (b) a possible association between the age at menopause of mothers and their daughters, and (c) an association at the individual level between age at menarche, particular characteristics of ovarian function (fetal loss) and age at menopause. The reproductive ageing process therefore seems to result from the expression of the influence of ecological conditions in which the lifecycle of the women develops and of a degree of heritability that affects not only the age at menopause but also a range of characteristics of ovarian function.

El objetivo de este trabajo es analizar el comportamiento de las inversiones térmicas y contaminantes atmosféricos en la Zona Metropolitana de Guadalajara (ZMG) durante el periodo 2005-2007. Se analizó la información de las inversiones térmicas (estación CNA colomos) y concentraciones de los contaminantes: monóxido de carbono, bióxido de nitrógeno, ozono, bióxido de azufre y partículas menores a 10 micras de las ocho estaciones de la Red de Monitoreo Atmosférico del Gobierno de Jalisco. Los resultados mostraron relación significativa entre los días con inversión térmica de gran espesor y duración con la acumulación de contaminantes, lo cual provoca que se incrementen los índices de contaminación en la zona. Los meses con presencia importante de inversiones térmicas y contaminación elevada ocurrieron durante las estaciones de invierno y primavera (noviembre-mayo). Una conclusión relevante es que las inversiones térmicas fuertes han sido factor en elevados índices de contaminación en la ZMG. ; The objective is to analyze the behavior of thermal inversions and air pollutants in the Guadalajara Metropolitan Area during 2005-2007. Thermal inversion data (CNA colomos station) and air pollutants (carbon monoxide, nitrogen dioxide, ozone, sulfur dioxide and particulate less than 10 microns) of eight stations of the Air Quality Monitoring Network of the Government Jalisco were analyzed. The results indicated significant relationship between days with thermal inversion of great thickness and long time with the accumulation of pollutants, which causes an increase in the levels of pollution in the area. The months with high presence or thermal inversions and high contamination index are in winter and spring seasons (November-May). A relevant conclusion is that strong thermal inversions have influence in higher rates of air pollution in the Guadalajara Metropolitan Area.

The objective is to analyze the behavior of thermal inversions and air pollutants in the Guadalajara Metropolitan Area during 2005-2007. Thermal inversion data (CNA colomos station) and air pollutants (carbon monoxide, nitrogen dioxide, ozone, sulfur dioxide and particulate less than 10 microns) of eight stations of the Air Quality Monitoring Network of the Government Jalisco were analyzed. The results indicated significant relationship between days with thermal inversion of great thickness and long time with the accumulation of pollutants, which causes an increase in the levels of pollution in the area. The months with high presence or thermal inversions and high contamination index are in winter and spring seasons (November-May). A relevant conclusion is that strong thermal inversions have influence in higher rates of air pollution in the Guadalajara Metropolitan Area. ; El objetivo de este trabajo es analizar el comportamiento de las inversiones térmicas y contaminantes atmosféricos en la Zona Metropolitana de Guadalajara (ZMG) durante el periodo 2005-2007. Se analizó la información de las inversiones térmicas (estación CNA colomos) y concentraciones de los contaminantes: monóxido de carbono, bióxido de nitrógeno, ozono, bióxido de azufre y partículas menores a 10 micras de las ocho estaciones de la Red de Monitoreo Atmosférico del Gobierno de Jalisco. Los resultados mostraron relación significativa entre los días con inversión térmica de gran espesor y duración con la acumulación de contaminantes, lo cual provoca que se incrementen los índices de contaminación en la zona. Los meses con presencia importante de inversiones térmicas y contaminación elevada ocurrieron durante las estaciones de invierno y primavera (noviembre-mayo). Una conclusión relevante es que las inversiones térmicas fuertes han sido factor en elevados índices de contaminación en la ZMG.

Este trabalho busca compreender o pensamento de Anthony Giddens. Através da análise de dois de seus mais recentes livros – As conseqüências da modernidade (1990) e A transformação da intimidade (1992) – pretende-se discutir duas noções centrais na obra de Giddens: a noção de Modernidade e a noção de Reflexividade. Observou-se que, ao dar centralidade ao termo Reflexividade, Giddens constrói uma nova maneira de entender as mudanças trazidas pela vida moderna. Ou seja, Giddens defende que a reflexividade moderna pode trazer formas mais democráticas de convivência privada e pública.


Palavras-chave: Anthony Giddens; teoria social; modernidade; reflexividade

In response to the 2013 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) study was launched, as an international collaboration hosted by CERN. This study covers a highest-luminosity high-energy lepton collider (FCC-ee) and an energy-frontier hadron collider (FCC-hh), which could, successively, be installed in the same 100 km tunnel. The scientific capabilities of the integrated FCC programme would serve the worldwide community throughout the 21st century. The FCC study also investigates an LHC energy upgrade, using FCC-hh technology. This document constitutes the second volume of the FCC Conceptual Design Report, devoted to the electron-positron collider FCC-ee. After summarizing the physics discovery opportunities, it presents the accelerator design, performance reach, a staged operation scenario, the underlying technologies, civil engineering, technical infrastructure, and an implementation plan. FCC-ee can be built with today's technology. Most of the FCC-ee infrastructure could be reused for FCC-hh. Combining concepts from past and present lepton colliders and adding a few novel elements, the FCC-ee design promises outstandingly high luminosity. This will make the FCC-ee a unique precision instrument to study the heaviest known particles (Z, W and H bosons and the top quark), offering great direct and indirect sensitivity to new physics. ; European Union [654305, 764879, 730871, 777563]; FP7 [312453] ; Open access article ; This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.