Denver Art Museum

pylori and Dietoterapia", obteve-se 4 artigos, aplicando os critrios de incluso e excluso, restaram 1. Utilizando a mesma sequncia de descritores nas plataformas PubMed, Scielo e Google Acadmico, foi possvel obter um total de 0, 2 e 537, respectivamente, totalizando 543 artigos, desses sendo selecionados somente 1 do Scielo e 14 do Google acadmico.Com isso, o nmero de artigos selecionados aps o filtro foi de 16.

grande notoriedade uma vez que em 2011, o vitiligo foi oficialmente classificado pelo consenso internacional como uma doena autoimune.

The awareness to tailings dam safety monitoring and reviews has increased by the catastrophes resulting from failures of such dams worsened by increasing tailings waste and construction of larger dams. The losses born by the mining industry from high costs of compensations and environmental rehabilitation work have brought this matter into focus. In the present article the need for safety monitoring programs of tailings dam is highlighted and mode of failures and factors leading to them are described. Basic principles of such programs are investigated with all phenomena needing observation described and their impacts explained. As in conventional dams this work is carried out by visual inspections and use of similar methods and instruments. In similar manners in both types of dams’ observation and measurements are done for measuring seepage water quantity and quality, phreatic surface level and pore pressure and total earth pressure values in addition to deformation measurements; and all are done by similar devices and methods such as weirs, piezometers, inclinometers, settlement plates and geodetic surveying. Basic differences between safety monitoring systems of the two types of dam, however, are presented in a tabular form. The continuity of safety monitoring of tailings dams is emphasized not only during the long construction phase but also after that in the abandonment and closure phase which can last indefinitely in order to watch for possible adverse effects on the environment and ecosystem due to the winds eroding and carrying of poisonous tailings contents, in addition to contaminated seepage water entering surface water streams and ground water. Justifications for using real time monitoring systems for recording and transmitting all data to the control center are presented with emphasis given on savings in both labor and time and need for the discovery of warning signs enabling raising earlier the alarm of possible failure or incident and the early taking of preventive measures. In this article it is argued that, in spite of the large investment of installing and running cost of comprehensive dam safety monitoring systems in tailings dams, such costs are justified as they form only a small percentage of the total investment in the tailings facilities projects, and may save huge costs if failure does happen. Such systems may be considered as an additional insurance against such events.

The Cave of Juliq’ in Alta Verapaz, Guatemala contains an impressive corpus of ancient Maya rock art. Unlike other examples of rock art in this area, the Juliq’ pictographs are simply rendered, generally consisting of lines, handprints, and other basic shapes. We thus focus on context rather than on iconographic content in order to access the meaning of these ancient pictographs. We argue that they were used to record human presence in and movement through the alien cave environment in specific ways, demarcating procession routes, points of transition, moments of physical prowess, and places charged with sacred power. These circuits within Juliq’ reflect attempts to order the Underworld landscape and link it to the surface world through ritual movement akin to aboveground ritual processions.

Much previous scholarship has assumed that Pacific trade goods were generally restricted to the urban centers of colonial Latin America and had little influence on the culture of interior provinces. Documentary and archeological records from remote areas of northern New Spain indicate otherwise and may serve as an example of the range of Asian trade goods elsewhere in colonial Latin America. This essay focuses upon Parral and New Mexico, showing that Asian goods-especially porcelain and textiles-reached some of the most remote areas of the viceroyalty of New Spain. Throughout the colonial era, the desire to establish and maintain a sophisticated lifestyle on the periphery seems to have been operative, with imported Asian goods as signifiers of status and prestige. Although fewer imported Asian goods may have been available in the remote northern regions than in urban areas, archeological and documentary evidence indicates their quality was equal to that of the metropoles, suggesting that daily life on the northern frontier was not as poor and isolated as previously assumed, but rather, actively participated in the international trade of the times.

The fate of radionuclides in the environment is a cause of great concern for modern society, seen especially in 2011 after the Fukushima accident. Among the environmental compartments, seawater covers most of the earth's surface and may be directly or indirectly impacted. The interaction between radionuclides and the marine compartment is therefore essential for better understanding the transfer mechanisms from the hydrosphere to the biosphere. This information allows for the evaluation of the impact on humans via our interaction with the biotope that has been largely undocumented up to now. In this report, we attempt to make a link between the speciation of heavy elements in natural seawater and their uptake by a model marine organism. More specifically, because the interaction of actinides with marine invertebrates has been poorly studied, the accumulation in a representative member of the Mediterranean coralligenous habitat, the sponge Aplysina cavernicola, was investigated and its uptake curve exposed to a radiotracer (241)Am was estimated using a high-purity Ge gamma spectrometer. But in order to go beyond the phenomenological accumulation rate, the speciation of americium(III) in seawater must be assessed. The speciation of (241)Am (and natural europium as its chemically stable surrogate) in seawater was determined using a combination of different techniques: Time-Resolved Laser-Induced Fluorescence (TRLIF), Extended X-ray Absorption Fine Structure (EXAFS) at the LIII edge, Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) spectroscopy and Scanning Electron Microscopy (SEM) and the resulting data were compared with the speciation modeling. In seawater, the americium(III) complex (as well as the corresponding europium complex, although with conformational differences) was identified as a ternary sodium biscarbonato complex, whose formula can be tentatively written as NaAm(CO3)2·nH2O. It is therefore this chemical form of americium that is accumulated by the sponge A. cavernicola.