Applications of optically active metallacycles: new useful materials for the determination of the enantiomeric excess of Lewis bases and as resolving agents for monodentate phosphines

Es descriu la síntesi de nous compostos ciclopal·ladats derivats d'imines i amines primàries, òpticament actius, així com les seves aplicacions per a la determinació de l'excés enantiomèric i per a la resolució de bases de Lewis. També es comenta la síntesi i resolució de noves fosfines P-quirals, així com la seva aplicació a processos de catàlisi asimètrica. A més, es descriu la preparació d'algunes fosfines secundàries quirals i s'estudia la seva estabilitat configuracional.

Excess winter deaths caused by cardiovascular diseases are associated with both mild winter temperature and socio-economic inequalities in the U.S.

Mortality from cardiovascular diseases (CVD) exhibits seasonal variation. For example, 30% more deaths occurred in winter compared to summer in a multicountry study [1]. The effect of cold temperature on several CVD risk factors and on seasonal influenza infection may partially underlie this seasonal variation [2] and [3]. However an unexplained paradox has been observed: seasonality in CVD mortality is larger in temperate mid-latitude countries (e.g. Portugal) than in colder northern countries (e.g. Scandinavian countries) [1]. This paradox has also been previously observed in Europe for overall mortality, and it may relate to uneven proportions between countries of people who are unable to adequately protect themselves against cold due to low socio-economic status (SES), e.g. inadequate clothing, housing insulation and heating systems [4] and [5]. We hypothesized that the seasonal variability in CVD mortality is larger in low socio-economic U.S. states experiencing mild winters compared to high socio-economic states experiencing cold winters.

Friedman's Excess energy and the McMillan-Mayer theory of solutions:Thermodynamics

In his version of the theory of multicomponent systems, Friedman used the analogy which exists between the virial expansion for the osmotic pressure obtained from the McMillan-Mayer (MM) theory of solutions in the grand canonical ensemble and the virial expansion for the pressure of a real gas. For the calculation of the thermodynamic properties of the solution, Friedman proposed a definition for the"excess free energy" that is a reminder of the ancient idea for the"osmotic work". However, the precise meaning to be attached to his free energy is, within other reasons, not well defined because in osmotic equilibrium the solution is not a closed system and for a given process the total amount of solvent in the solution varies. In this paper, an analysis based on thermodynamics is presented in order to obtain the exact and precise definition for Friedman"s excess free energy and its use in the comparison with the experimental data.

Conversa amb Th. S. Popkewitz: els ensenyants i la reforma de la formació del professorat als EUA, professionalització i poder

La meva hipòtesi és que els supòsits socials i epistemològics que s'han incorporat a les reformes nord-americanes de formació del profes.sorat tendeixen a mistificar la complexitat social i política de I'escolarització i a descontextualitzar les profundes qüestions sobre el poder i el coneixement a I'ensenyament. Les regles, els programes de recerca, els informes de les administracions estan expressats en els termes més humanistes i progressistes possibles. Pretenen portar-nos a tots la democracia, generar un creixement económic i una renovació cultural, i també promoure el desenvolupament individual. Peró a través del recorregut deis somnis i la retórica progressista hom pot observar la creació de tecnologies que s'internalitzen i organitzen la vida quotidiana, Ilurs esperances i anhels. Th .. S. Popkewitz (1993)

A arte moderna como historicamente-sublime um comentário sobre o conceito de sublime na teoria estética de TH. Adorno

O objetivo do texto é propor uma interpretação do conceito de sublime na Teoria estética de Theodor Adorno, partindo do confronto com leituras significativas de outros comentadores, de modo a fornecer uma concepção que associe o movimento de transcendência e alteridade da forma estética à dinâmica histórico-processual das obras.

Potential of utilization of rain water excess for irrigation of green roofs in Mato Grosso, Brasil

The aim of this study was to identify the relation between the evapotranspirometer demand and the supply of water from local rainfall, evaluating the possibility of using water excess for irrigation of Green Roofs in the State of Mato Grosso, in Brazil. The study was done using a series of historical data provided by the National Institute of Meteorology (INMET - Instituto Nacional de Meteorologia) which has official climatological stations in 12 cities and regions of the State. The evapotranspiration values were obtained by the Penman-Monteith method and by the Climatic Water Balance (CWB) by the Thornthwaite and Mather method using Available Water Capacity (AWC) of 12mm. With the CWB the excess and deficit were calculated, which were used for the estimative of the volume and area of a reservoir as a function of a collector area of a roof of 100m² and the volume of supplementary water for irrigation. With the obtained results, it was found that in most investigated regions of the State the use of green roofs is not compromised by the water deficiency. On the other hand, the use of a reservoir to accumulate the rain water excess may be impractical, because it requires a considerable area for installation and also because of the high cost of the land.

Ocorrência de micoses e pitiose em animais domésticos: 230 casos

Para determinar as principais micoses e oomicoses que acometeram animais domésticos na área de abrangência do Laboratório de Patologia Veterinária (LPV) da Universidade Federal de Santa Maria (UFSM), foi realizado um estudo retrospectivo em 9.487 protocolos de necropsias e 20.199 exames histopatológicos (totalizando 29.686 casos), realizados no LPV-UFSM, entre janeiro de 1990 e dezembro de 2012. Do total de protocolos analisados, 230 apresentaram micoses ou pitiose (oomicose), sendo 179 casos (78%) de micoses e 51 casos (22%) de pitiose. Os protocolos foram revisados para determinar os principais achados referentes à epidemiologia, sinais clínicos e às alterações macroscópicas e microscópicas. Em dois casos (0,8%) não foi possível determinar o gênero ou o grupo do fungo observado. As principais doenças diagnosticadas, em ordem decrescente de prevalência, foram: pitiose, candidíase, aspergilose, zigomicose, dermatofitose, malasseziose, criptococose, megabacteriose e esporotricose. Outras doenças diagnosticadas numa única ocorrência cada foram histoplasmose e pneumocistose. Os equinos foram os mais acometidos pela pitiose e os animais de companhia (cães e gatos) foram os mais acometidos pelas micoses.

Currency Carry Trades – Excess Returns and Performance Optimization of G10 Currency Carry Trade Strategies during the Euro Era

This study examines the excess returns provided by G10 currency carry trading during the Euro era. The currency carry trade has been a popular trade throughout the past decades offering excess returns to investors. The thesis aims to contribute to existing research on the topic by utilizing a new set of data for the Euro era as well as using the Euro as a basis for the study. The focus of the thesis is specifically on different carry trade strategies’ performance, risk and diversification benefits. The study finds proof of the failure of the uncovered interest rate parity theory through multiple regression analyses. Furthermore, the research finds evidence of significant diversification benefits in terms of Sharpe ratio and improved return distributions. The results suggest that currency carry trades have offered excess returns during 1999-2014 and that volatility plays an important role in carry trade returns. The risk, however, is diversifiable and therefore our results support previous quantitative research findings on the topic.

General karta öfver Göta canalen föreslagen till sammanbindande af Wenern och Wettern med Östersjön på konungens allernådigste befallning utstakad under öfversten och riddaren frih.re von Platens inseende af Th. Telford 1808

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Th-1 and Th-2 cytokine production in infants with virus-associated wheezing

Wheezing associated with respiratory viral infections in infancy is very common and results in high morbidity worldwide. The Th1/Th2 pattern of immune response in these patients remains unclear and previous studies have shown controversial results. The aim of the present study was to compare the type of Th1/Th2 cytokine response between infants with acute bronchiolitis, recurrent wheezing and upper respiratory infections from a developing country. Infants younger than 2 years of age admitted to Hospital São Lucas, Porto Alegre, RS, Brazil, between May and November 2001, with an acute episode of wheezing associated with viral respiratory infection were selected. Subjects with upper respiratory infections from the emergency department were selected for the control group. Interferon-gamma (IFN-gamma) and interleukin-4 (IL-4) levels from nasal aspirates were determined by ELISA from peripheral mononuclear cell cultures. Twenty-nine subjects with acute bronchiolitis, 18 with recurrent wheezing and 15 with upper respiratory infections were enrolled. There were no differences in family history of atopy or parental smoking between groups. Oxygen requirement was similar for the acute bronchiolitis and recurrent wheezing groups. The percentage of positive tests for the cytokines studied and the IFN-gamma/IL-4 ratio was similar for all groups. Comparison of the polarized Th1/Th2 cytokine results for the various groups showed no specific pattern of cytokine production. Infants with wheezing from a developing country do not show any specific predominant pattern of Th1/Th2 cytokine production, suggesting that multiple factors may be involved in the pathogenesis of this illness.