El proceso electoral de 1917 en la provincia de Buenos Aires y el triunfo de la U.C.R.

El 24 de abril de 1917 se dictó el decreto de intervención federal a la provincia de Buenos Aires. Producido este hecho, las diversas fuerzas políticas se prepararon para participar en las elecciones de gobernador y legisladores que habrían de realizarse en marzo de 1918, pero fue en el radicalismo donde el proceso habría de ser realmente complicado. Arribada la UCR al poder a través de la intervención y con claras perspectivas de llegar al gobierno, rápidamente se pudo contemplar que, dentro de la misma y sin llegar a la ruptura, se formaron dos líneas claramente contrapuestas que se denominaron provincialistas, origen en parte del antipersonalismo provincial, y los metropolitanos. Luego de un arduo proceso, con activa participación de Yrigoyen, se llegó a dar consenso a la fórmula Crotto-Monteverde, que habría de imponerse sobre los conservadores y socialistas, pero que dejó abierto el camino para las fuertes luchas intrapartidarias del radicalismo

Participación electoral de los argentinos residentes en el exterior

Históricamente la Argentina ha sido caracterizada como un país de recepción de migrantes de todo el mundo. No obstante, en las últimas décadas, los cambios políticos y económicos en el interior del país y las facilidades para la movilidad internacional, han hecho de la emigración una alternativa cierta en búsqueda del mejoramiento de las condiciones de vida y desarrollo profesional para la población argentina. En dicho marco, el presente trabajo aborda la problemática de la ciudadanía transnacional, centrándose en la participación electoral de los argentinos residiendo en el exterior y prestando especial atención a los factores que la dificultan. Los principales ejes de análisis son: a- el estudio de los datos cuantitativos referidos a la participación electoral, b- el posicionamiento de las instituciones del Estado encargadas de ejecutar el voto en el exterior y la clase política, respecto al tema y c- el papel desempeñado por las asociaciones de argentinos residentes en el exterior

El proceso electoral de 1917 en la provincia de Buenos Aires y el triunfo de la U.C.R.

El 24 de abril de 1917 se dictó el decreto de intervención federal a la provincia de Buenos Aires. Producido este hecho, las diversas fuerzas políticas se prepararon para participar en las elecciones de gobernador y legisladores que habrían de realizarse en marzo de 1918, pero fue en el radicalismo donde el proceso habría de ser realmente complicado. Arribada la UCR al poder a través de la intervención y con claras perspectivas de llegar al gobierno, rápidamente se pudo contemplar que, dentro de la misma y sin llegar a la ruptura, se formaron dos líneas claramente contrapuestas que se denominaron provincialistas, origen en parte del antipersonalismo provincial, y los metropolitanos. Luego de un arduo proceso, con activa participación de Yrigoyen, se llegó a dar consenso a la fórmula Crotto-Monteverde, que habría de imponerse sobre los conservadores y socialistas, pero que dejó abierto el camino para las fuertes luchas intrapartidarias del radicalismo

Basic and other measurements of radiation from the Baseline Surface Radiation Network (BSRN) Station Ny-Ålesund in the years 1992 to 2013, reference list of 253 datasets

At Ny-Ålesund (78.9° N), Svalbard, surface radiation measurements of up- and downward short- and longwave radiation are operated since August 1992 in the frame of the Baseline Surface Radiation Network (BSRN), complemented with surface and upper air meteorology since August 1993. The long-term observations are the base for a climatological presentation of the surface radiation data. Over the 21-year observation period, ongoing changes in the Arctic climate system are reflected. Particularly, the observations indicate a strong seasonality of surface warming and related changes in different radiation parameters. The annual mean temperature at Ny-Ålesund has risen by +1.3 ± 0.7 K per decade, with a maximum seasonal increase during the winter months of +3.1 ± 2.6 K per decade. At the same time, winter is also the season with the largest long-term changes in radiation, featuring an increase of +15.6 ± 11.6 W/m**2 per decade in the downward longwave radiation. Furthermore, changes in the reflected solar radiation during the months of snow melt indicate an earlier onset of the warm season by about 1 week compared to the beginning of the observations. The online available dataset of Ny-Ålesund surface radiation measurements provides a valuable data source for the validation of satellite instruments and climate models.

Transient Holocene experiments under orbital forcing using the comprehensive global climate model CCSM3 (Community Climate System Model 3)

The Southern Hemisphere Westerly Winds (SWW) have been suggested to exert a critical influence on global climate through wind-driven upwelling of deep water in the Southern Ocean and the potentially resulting atmospheric CO2 variations. The investigation of the temporal and spatial evolution of the SWW along with forcings and feedbacks remains a significant challenge in climate research. In this study, the evolution of the SWW under orbital forcing from the early Holocene (9 kyr BP) to pre-industrial modern times is examined with transient experiments using the comprehensive coupled global climate model CCSM3. Analyses of the model results suggest that the annual and seasonal mean SWW were subject to an overall strengthening and poleward shifting trend during the course of the early-to-late Holocene under the influence of orbital forcing, except for the austral spring season, where the SWW exhibited an opposite trend of shifting towards the equator.

Distribution of biological, anthropogenic, and volcanic constituents in the San Francisco Bay Coastal System

Although conventional sediment parameters (mean grain size, sorting, and skewness) and provenance have typically been used to infer sediment transport pathways, most freshwater, brackish, and marine environments are also characterized by abundant sediment constituents of biological, and possibly anthropogenic and volcanic, origin that can provide additional insight into local sedimentary processes. The biota will be spatially distributed according to its response to environmental parameters such as water temperature, salinity, dissolved oxygen, organic carbon content, grain size, and intensity of currents and tidal flow, whereas the presence of anthropogenic and volcanic constituents will reflect proximity to source areas and whether they are fluvially- or aerially-transported. Because each of these constituents have a unique environmental signature, they are a more precise proxy for that source area than the conventional sedimentary process indicators. This San Francisco Bay Coastal System study demonstrates that by applying a multi-proxy approach, the primary sites of sediment transport can be identified. Many of these sites are far from where the constituents originated, showing that sediment transport is widespread in the region. Although not often used, identifying and interpreting the distribution of naturally-occurring and allochthonous biologic, anthropogenic, and volcanic sediment constituents is a powerful tool to aid in the investigation of sediment transport pathways in other coastal systems.

(Table A1) Species list of the high Antarctic Weddell Sea food web

Human-induced habitat destruction, overexploitation, introduction of alien species and climate change are causing species to go extinct at unprecedented rates, from local to global scales. There are growing concerns that these kinds of disturbances alter important functions of ecosystems. Our current understanding is that key parameters of a community (e.g. its functional diversity, species composition, and presence/absence of vulnerable species) reflect an ecological network's ability to resist or rebound from change in response to pressures and disturbances, such as species loss. If the food web structure is relatively simple, we can analyse the roles of different species interactions in determining how environmental impacts translate into species loss. However, when ecosystems harbour species-rich communities, as is the case in most natural systems, then the complex network of ecological interactions makes it a far more challenging task to perceive how species' functional roles influence the consequences of species loss. One approach to deal with such complexity is to focus on the functional traits of species in order to identify their respective roles: for instance, large species seem to be more susceptible to extinction than smaller species. Here, we introduce and analyse the marine food web from the high Antarctic Weddell Sea Shelf to illustrate the role of species traits in relation to network robustness of this complex food web. Our approach was threefold: firstly, we applied a new classification system to all species, grouping them by traits other than body size; secondly, we tested the relationship between body size and food web parameters within and across these groups and finally, we calculated food web robustness. We addressed questions regarding (i) patterns of species functional/trophic roles, (ii) relationships between species functional roles and body size and (iii) the role of species body size in terms of network robustness. Our results show that when analyzing relationships between trophic structure, body size and network structure, the diversity of predatory species types needs to be considered in future studies.