121,064 research outputs found
Hyperovals arising from a Singer group action on H(3,q^2), q even
Some hyperovals of H(3,q^2), q even are constructed investigating the action of a Singer grou
Powerful Trend Function Tests That are Robust to Strong Serial Correlation with an Application to the Prebisch Singer Hypothesis
In this paper we propose tests for hypothesis regarding the parameters of a the deterministic trend function of a univariate time series. The tests do not require knowledge of the form of serial correlation in the data and they are robust to strong serial correlation. The data can contain a unit root and the tests still have the correct size asymptotically. The tests we analyze are standard heteroskedasticity autocorrelation (HAC) robust tests based on nonparametric kernel variance estimators. We analyze these tests using the small-b asymptotic framework recently proposed by Kiefer and Vogelsang (2002). This analysis allows us to analyze the power properties of the tests with regards to bandwidth and kernel choices. Our analysis shows that among popular kernels, there are specific kernel and bandwidth choices that deliver tests with maximal power within a specific class of tests. We apply the recommended tests to the logarithm of a net barter terms of trade series and we find that this series has a statistically significant negative slope. This finding is consistent with the well known Prebisch-Singer hypothesis. Because our tests are robust to strong serial correlation or a unit root in the data, our results in support of the Prebisch-Singer hypothesis are relatively strong.Estimator, Fixed-b Asymptotics, Power Envelope, Unit Root, Nearly Integrated, Partial Sum, Deterministic Trend, Linear Trend.
A importância moral da dor e do sofrimento animal na ética de Peter Singer
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Humanas, Programa de Pós-Graduação em Filosofia, Florianópolis, 2012.O objetivo desta dissertação é defender a importância moral da consideração da dor e do sofrimento de animais não-humanos. Isso se dá através do principio da igual consideração de interesses desenvolvido por Peter Singer. A senciência possibilita os animais a terem interesses, no mínimo, o interesse evitar a dor e o sofrimento. É por essa razão que devem ser incluídos nas decisões morais. São reconstruídas e analisadas as objeções de Peter Harrison, Carl Cohen, R.G. Frey e Lawrence C. Becker direcionadas ao princípio de Singer, e que criticam os pressupostos básicos, quais sejam, a capacidade de sentirem dor/sofrimento e de terem interesses, sobre os quais se fundamenta a inclusão dos animais nas considerações morais. Cada uma dessas objeções é analisada e criticada de modo a demonstrar suas limitações e inconsistências, juntamente com as implicações morais geradas para seres humanos. Na análise dessas críticas, reforça-se a importância e a consideração moral que deve ser conferida à dor e ao sofrimento dos animais. Após essa discussão teórica, é analisado um caso de âmbito prático: a pesquisa científica sobre o câncer humano através do modelo animal. Verifica-se, a partir do princípio de Singer, a imoralidade de tal procedimento realizado em animais sencientes devido à violação de seus interesses. Com isso, a dissertação enfatiza a exigência ética de abolir o uso de animais nessa prática em razão da incapacidade preditiva dos animais, mas principalmente devido à dor e ao sofrimento causado neles e também aos seres humanos, que ficam sujeitos aos erros, prejuízos e sofrimentos originados pelo intenso uso animal nas pesquisas. Nessa conclusão, se constata que a insistência no uso de animais nos experimentos compromete o cientista a preferir usar seres humanos, uma vez que isso gera mais benefícios e resultados mais seguros. A recusa moral ao uso de humanos em pesquisas implica, por outro lado, na recusa moral do uso de animais, ou seja, sua abolição.Abstract : The aim of this dissertation is to defend the moral importance of considering pain and suffering of nonhuman animals. This is achieved through The Principle of Equal Consideration of Interests developed by Peter Singer. The sentience enables nonhuman animals to have interests, at least the interest of avoiding pain and suffering. That is why it should be included in moral decisions. The objections of Peter Harrison, Carl Cohen, RG Frey and Lawrence C. Becker directed to the principle of Singer are reconstructed and analyzed, as they are criticizing the basic assumptions, i.e., the ability to feel pain/suffering and have interests, upon which is based the inclusion of animals in moral considerations. Each of these objections is analyzed and criticized in order to demonstrate their limitations and inconsistencies, simultaneously with its moral implications for humans. In the analysis of these criticisms, it reinforces the moral importance and considerations that should be given to pain and suffering of animals. After this theoretical discussion, a case study of practical scope is analyzed: animal testing for scientific research on human cancer. It is verified from the Singer's principle that such procedures performed on sentient animals are a violation of their interests and, therefore, immoral. Thus, the dissertation emphasizes the ethical demand to abolish the use of nonhuman animals in this practice due to their predictive inability, but mainly due to the pain and suffering caused to them and also to humans, who are subject to errors, injuries and suffering originated by the intense use of nonhuman animals on research. The conclusion verifies that the insistence on the use of nonhuman animals in experiments moves the scientist to prefer using humans in experiments since it generates greater benefit and more reliable results. The moral refusal to using humans in research implies the moral rejection of the use of animals in experiments and consequently, its abolition
Can reforming global institutions help developing countries share more in the benefits from globalization?
Globalization could significantly expand trade, international investment, and technological advances, but the gains from global integration have been unevenly distributed across and within nations. Greater global interdependence has also brought greater macroeconomic volatility, resulting in several serious financial crises in the second half of the 1990s. The global matrix of Bretton Woods and United Nations institutions that developed starting in the 1940s, formed under a different balance of power, in a world of fixed exchange rates and limited capital mobility. Since the 1960s regional financial institutions have emerged because of the greater autonomy of different regions and the greater financial needs of development. The author reviews different proposals for reform of the international financial institutions and changes in the roles of the International Monetary Fund (IMF) and the World Bank. He highlights the implications for developing countries of (1) Policy conditionality. (2) The countercyclical role of multilaterals'lending. (3) Greater lending to middle-income than to low-income developing countries. (3) Access to liquidity at times of crisis. (4) Mechanisms for giving low-income countries a greater voice in IMF and World Bank decisionmaking. The author streses the overlapping responsibilities of the Bretton Woods and regional financial institutions and the need to reassess the allocation of responsibilities and to develop better coordination mechanisms between these institutions. Those designing institutional reform must consider the corporate capabilities of each type of institution. The corporate cultures of global and regional institutions differ. So does the kind of knowledge they generate and disseminate, and so do patterns of interactions with, and mechanisms for representation of, client countries.Finally, the author calls attention to the need to harmonize national and global growth-oriented policies in a way that reduces volatility and promotes social equity.Environmental Economics&Policies,Governance Indicators,Financial Intermediation,Economic Theory&Research,Banks&Banking Reform
Jewish National Fund -- 1961-69 -- Correspondence, Individual -- letter, 1961-11-23
Letter from Singer, Mack H. to Sabin, Albert B. dated 1961-11-23.Sabin Collection Fair Use Policy</a
Jewish National Fund -- 1961-69 -- Correspondence, Individual -- letter, 1962-03-01
Letter from Singer, Mack H. to Sabin, Albert B. dated 1962-03-01.Sabin Collection Fair Use Policy</a
Valor intrínseco na bioética ambiental: uma análise crítica das concepções de Dworkin, Singer e Rolston III
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em Filosofia, Florianópolis, 2010O tema desta dissertação é o valor intrínseco e sua aplicabilidade no contexto da bioética ambiental. Discute-se, sobretudo, as concepções de valor intrínseco apresentadas por Ronald Dworkin, Peter Singer e Holmes Rolston III. Tais autores possuem concepções de valor intrínseco diversas e delas realizam diferentes usos e aplicações, o que origina o problema desta pesquisa, levando-nos a questionar se tais concepções de valor intrínseco realmente são suficientes para se propor uma teoria bioética ambiental. A hipótese considerada é a de que dependendo do conceito e do uso da expressão "valor intrínseco", a concepção adotada pelos filósofos não é suficientemente adequada para fundamentar ou, pelo menos, apoiar a construção de uma proposta de ética ambiental que garanta individualmente igual proteção às mais diversas formas de vida. Assim, o objetivo consiste em analisar diversos usos e aplicações de concepções de valor intrínseco na ética prática e, mais especificamente, verificar os limites dessas concepções na sua aplicação no contexto de teorias bioéticas. A partir disso, aponta-se para uma concepção de "valor inerente" para a qual uma ética ambiental genuína deve voltar-se, sem descartar as contribuições de Dworkin, Singer e Rolston III. Para tanto, defende-se a importância de superar uma visão representacionista de mundo, segundo a qual os seres humanos são concebidos enquanto entidades separadas do restante do mundo natural, substituindo-a por uma concepção de natureza que entende os seres humanos como parte do mundo natural, que, por sua vez, é continuamente construído pela interação mente e mundo
[Allan Yousten, Samuel Singer, and H. D. Burges and others]
From left to right, Allan Yousten, Samuel Singer, and H. D. Burges at meeting of World Health Organization.All images created by or supplied to the Society of Invertebrate Pathology for use in publications and promotion. Content in Description field provided by text on verso or accompanying documentation
[Allan Yousten, Samuel Singer, and H. D. Burges and others]
From left to right, Allan Yousten, Samuel Singer, and H. D. Burges at meeting of World Health Organization.All images created by or supplied to the Society of Invertebrate Pathology for use in publications and promotion. Content in Description field provided by text on verso or accompanying documentation
Hair-Singer
Patent for a hair singer that contains the odor and smoke produced by singed hair
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