231 research outputs found

    The International Law of Discovery, Indigenous Peoples, and Chile

    Get PDF
    law in force at the time they were asserted.11 We hope that our effort will add to the work that has already been completed, and to that which is currently under way, to erase the Doctrine from international and national laws and to help reverse some of its pernicious effects on indigenous peoples. In Part II, we describe what the Doctrine of Discovery is, how it was developed in Europe, and how it was applied by Spain in the New World. Part III examines Chilean history and law to investigate whether Spanish and Chilean governments applied the Doctrine to the indigenous peoples that inhabited that region. We conclude in Part IV that Chile, just as all colonizing settler countries, must first recognize their use of the feudal, ethnocentric, racial, and religiously inspired international law of Discovery against indigenous peoples. Any attempt to redress past wrongs, and to create a more positive and equal future for all Chileans, must begin with recognition of this truth. From there, serious efforts should be made to eradicate the vestiges of Discovery from Chilean law and culture

    The International Law of Discovery, Indigenous Peoples, and Chile

    Get PDF
    law in force at the time they were asserted.11 We hope that our effort will add to the work that has already been completed, and to that which is currently under way, to erase the Doctrine from international and national laws and to help reverse some of its pernicious effects on indigenous peoples. In Part II, we describe what the Doctrine of Discovery is, how it was developed in Europe, and how it was applied by Spain in the New World. Part III examines Chilean history and law to investigate whether Spanish and Chilean governments applied the Doctrine to the indigenous peoples that inhabited that region. We conclude in Part IV that Chile, just as all colonizing settler countries, must first recognize their use of the feudal, ethnocentric, racial, and religiously inspired international law of Discovery against indigenous peoples. Any attempt to redress past wrongs, and to create a more positive and equal future for all Chileans, must begin with recognition of this truth. From there, serious efforts should be made to eradicate the vestiges of Discovery from Chilean law and culture

    Dichotomy in host environments and signs of recycled AGN

    Get PDF
    We analyse the relation between AGN host properties and large scale environment for a representative red and blue AGN host galaxy sample selected from the DR4 SDSS. A comparison is made with two carefully constructed control samples of non-active galaxies, covering the same redshift range and color baseline. The cross-correlation functions show that the density distribution of neighbours is almost identical for blue galaxies, either active, or non-active. Although active red galaxies inhabit environments less dense compared to non-active red galaxies, both reside in environments considerably denser than those of blue hosts. Moreover, the radial density profile of AGN, relative to galaxy group centres is less concentrated than galaxies. This is particularly evident when comparing red AGN and non-active galaxies. The properties of the neighbouring galaxies of blue and red AGN and non active galaxies reflect this effect. While the neighbourhood of the blue samples is indistinguishable, the red AGN environs show an excess of blue-star forming galaxies with respect to their non-active counterpart. On the other hand, the active and non-active blue systems have similar environments but markedly different morphological distributions, showing an excess of blue early-type AGN, which are argued to be late stage mergers. This comparison reveals that the observable differences between active red and blue host galaxy properties including star formation history and AGN activity depends on the environment within which the galaxies form and evolve.Comment: 11 pages, 10 figures. Accepted for publication in MNRA

    Positive words carry less information than negative words

    Get PDF
    We show that the frequency of word use is not only determined by the word length \cite{Zipf1935} and the average information content \cite{Piantadosi2011}, but also by its emotional content. We have analyzed three established lexica of affective word usage in English, German, and Spanish, to verify that these lexica have a neutral, unbiased, emotional content. Taking into account the frequency of word usage, we find that words with a positive emotional content are more frequently used. This lends support to Pollyanna hypothesis \cite{Boucher1969} that there should be a positive bias in human expression. We also find that negative words contain more information than positive words, as the informativeness of a word increases uniformly with its valence decrease. Our findings support earlier conjectures about (i) the relation between word frequency and information content, and (ii) the impact of positive emotions on communication and social links.Comment: 16 pages, 3 figures, 3 table

    Less than 10 percent of star formation in z=0.6 massive galaxies is triggered by major interactions

    Get PDF
    Both observations and simulations show that major tidal interactions or mergers between gas-rich galaxies can lead to intense bursts of starformation. Yet, the average enhancement in star formation rate (SFR) in major mergers and the contribution of such events to the cosmic SFR are not well estimated. Here we use photometric redshifts, stellar masses and UV SFRs from COMBO-17, 24 micron SFRs from Spitzer and morphologies from two deep HST cosmological survey fields (ECDFS/GEMS and A901/STAGES) to study the enhancement in SFR as a function of projected galaxy separation. We apply two-point projected correlation function techniques, which we augment with morphologically-selected very close pairs (separation <2 arcsec) and merger remnants from the HST imaging. Our analysis confirms that the most intensely star-forming systems are indeed interacting or merging. Yet, for massive (M* > 10^10 Msun) star-forming galaxies at 0.4<z<0.8, we find that the SFRs of galaxies undergoing a major interaction (mass ratios <1:4 and separations < 40 kpc) are only 1.80 +/- 0.30 times higher than the SFRs of non-interacting galaxies when averaged over all interactions and all stages of the interaction, in good agreement with other observational works. We demonstrate that these results imply that <10% of star formation at 0.4 < z < 0.8 is triggered directly by major mergers and interactions; these events are not important factors in the build-up of stellar mass since z=1.Comment: Submitted to ApJ. 41 pages, 11 figure

    Dificultades en el proceso de distribución, como elemento clave en la cadena de suministros

    Get PDF
    La cadena de suministro es el conjunto de procesos para posicionar e intercambiar materiales, servicios, productos semi-terminados, productos terminados, operaciones de post acabado logístico, de posventa y logística inversa, así como de información, en la logística integrada que va des de la procuración y adquisición de materia prima hasta la entrega y puesta en servicio de productos terminados al consumidor final. Todas las empresas están de un modo u otro en una cadena de suministro, dado que no son autosuficientes en un mercado cada vez más especializado. La selección de proveedores, combinada con los clientes, crean el núcleo de la cadena de suministro de una empresa. La tecnología juega un papel importante al facilitar la integración con los clientes, así como con proveedores de materiales y servicios.The supply chain is the set of processes to position and exchange materials, Services, semi-finished products, finished products, post-finishing operations. logistics, after-sales and reverse logistics, as well as information, in integrated logistics that in the process of Finished products to the final consumer. All companies are in one way or another in a supply chain, since they are not Self-sufficient in an increasingly specialized market. The selection of suppliers, combined with customers, they create the core of a company's supply chain. The Technology plays an important role in facilitating integration with customers, as well as with Suppliers of materials and services

    Caribbean Corals in Crisis: Record Thermal Stress, Bleaching, and Mortality in 2005

    Get PDF
    BACKGROUND The rising temperature of the world's oceans has become a major threat to coral reefs globally as the severity and frequency of mass coral bleaching and mortality events increase. In 2005, high ocean temperatures in the tropical Atlantic and Caribbean resulted in the most severe bleaching event ever recorded in the basin. METHODOLOGY/PRINCIPAL FINDINGS Satellite-based tools provided warnings for coral reef managers and scientists, guiding both the timing and location of researchers' field observations as anomalously warm conditions developed and spread across the greater Caribbean region from June to October 2005. Field surveys of bleaching and mortality exceeded prior efforts in detail and extent, and provided a new standard for documenting the effects of bleaching and for testing nowcast and forecast products. Collaborators from 22 countries undertook the most comprehensive documentation of basin-scale bleaching to date and found that over 80% of corals bleached and over 40% died at many sites. The most severe bleaching coincided with waters nearest a western Atlantic warm pool that was centered off the northern end of the Lesser Antilles. CONCLUSIONS/SIGNIFICANCE Thermal stress during the 2005 event exceeded any observed from the Caribbean in the prior 20 years, and regionally-averaged temperatures were the warmest in over 150 years. Comparison of satellite data against field surveys demonstrated a significant predictive relationship between accumulated heat stress (measured using NOAA Coral Reef Watch's Degree Heating Weeks) and bleaching intensity. This severe, widespread bleaching and mortality will undoubtedly have long-term consequences for reef ecosystems and suggests a troubled future for tropical marine ecosystems under a warming climate.This work was partially supported by salaries from the NOAA Coral Reef Conservation Program to the NOAA Coral Reef Conservation Program authors. NOAA provided funding to Caribbean ReefCheck investigators to undertake surveys of bleaching and mortality. Otherwise, no funding from outside authors' institutions was necessary for the undertaking of this study. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript

    Genome-wide studies of mRNA synthesis and degradation in eukaryotes

    Get PDF
    In recent years, the use of genome-wide technologies has revolutionized the study of eukaryotic transcription producing results for thousands of genes at every step of mRNA life. The statistical analyses of the results for a single condition, different conditions, different transcription stages, or even between different techniques, is outlining a totally new landscape of the eukaryotic transcription process. Although most studies have been conducted in the yeast Saccharomyces cerevisiae as a model cell, others have also focused on higher eukaryotes, which can also be comparatively analyzed. The picture which emerges is that transcription is a more variable process than initially suspected, with large differences between genes at each stage of the process, from initiation to mRNA degradation, but with striking similarities for functionally related genes, indicating that all steps are coordinately regulated. This article is part of a Special Issue entitled: Nuclear Transport and RNA Processing
    corecore