Music and software piracy : issues and solutions for music teachers and media intensive educators

The rampant piracy of digital materials is not just a problem for the individual home user. In today\u27s world it is increasingly a concern for educators and their school district as a whole. Many recent court actions have been brought against school districts based the illegal use of unlicensed software and other copyrighted materials. This project presents the issues of music and software piracy and the legalities of the United States Copyright Act. It presents common examples for use in the music or media intensive classroom, as well as legal usage requirements including the payment of royalties and purchase of recording or distribution licenses. Also covered are methods and suggestions on how faculty members can ensure that their school is compliant with current law and beyond the scope of legal actions that can adversely affect the district both financially and in the realm of public relations

Introduction to celebrating Latin American talent in chemistry

In celebration of the excellence and breadth of Latin American research achievements across the chemical sciences, we are delighted to present an introduction to the themed collection, Celebrating Latin American talent in chemistry. [Image: see text

Determinação de flúor em fígado animal por cromatografia de íons após a combustão iniciada por micro-ondas

O presente trabalho teve por objetivo desenvolver um método analítico adequado para determinação de flúor em fígado utilizando a IC-CD após decomposição por MIC

Environmental quality evaluation of the Vacacaí River, Rio Grande do Sul, Brazil

The water quality of the Vacacaí River was assessed at different sites in the period between winter 2005 and autumn 2006. All samples were analyzed for 52 elements (Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Th, Li, Be, Mg, Al, Ca, V, Cr, Mn, Fe, Ni, Co, Cu, Zn, Ga, As, Se, Rb, Sr, Ag, Cd, In, Cs, Ba, Tl, Pb, Bi, U, Na, K, Hg, B, Mo, Sn, Te, Ti), temperature, pH, ammonia, and alkalinity levels. Water from the Vacacaí River ranged from slightly acidic to alkaline. No difference was observed in the chemical composition at different sites of the Vacacaí River. Levels of Ba, Ca, Sr and Mg increase in the dry seasons and reach their highest concentrations in autumn; Be and U decrease in the dry season and reach their highest concentration in spring. Al, Fe, Cr, Ni, Th, U Mn, Ca and Mg are highly positively related, indicating a common origin. Se and Cu are probably from anthropogenic source, from the rice crops of the margins of the river. Waterborne Al and Fe levels were above the desirable level for drinking water at all sites during all seasons. These results demonstrate the need for constant monitoring of water parameters, which is crucial to ensure water quality for the population of this region. © 2013 Springer-Verlag Berlin Heidelberg

Desenvolvimento de método para determinação de halogênios e enxofre em esmalte para unhas

O presente trabalho tem como objetivo o desenvolvimento de um método analítico adequado para a determinação de halogênios e enxofre em esmaltes para unhas, utilizando a MIC como método de preparo de amostras e a IC-MS como técnica de determinação

Development studies of captopril certified reference material

This paper describes the studies performed with the candidate Certified Reference Material (CRM) of captopril, the first CRM of an active pharmaceutical ingredient (API) in Brazil, including determination of impurities (organic, inorganic and volatiles), homogeneity testing, short- and long-term stability studies, calculation of captopril content using the mass balance approach, and estimation of the associated measurement uncertainty.<br>Este artigo descreve os estudos realizados com o candidato a Material de Referência Certificado (MRC) de captopril, primeiro MRC de fármacos no Brasil, incluindo a determinação de impurezas (orgânicas, inorgânicas e voláteis), testes de homogeneidade, testes de estabilidade de curta e longa duração, cálculo do teor de captopril por balanço de massa e estimativa da incerteza de medição associada ao valor certificado