El artículo parte de la distinción entre diferentes formas de pensar lo posthumano. A partir de la pregunta sobre la posibilidad de una ética posthumana, que vaya más allá del principio precautorio, ...se defiende la siguiente tesis: el posthumanismo, en su interpretación transhumanista, es la postura más acorde a la ética normativa tal como la conocemos, si y solo si el enfoque consecuencialista que caracteriza a sus defensores es complementado con el deontológico. Para esto se asumen dos supuestos: la idea de una continuidad entre los humanos y los posthumanos y el derecho del humano a ejercer mejoramientos sobre sí mismo que lo lleven a un estado calificable como posthumano, siempre y cuando no atenten contra la dignidad humana.
El patrimonio geológico-paleontológico, representa un componente en el que se puede basar la actividad turística de un territorio. El objetivo de este estudio es exponer cómo las políticas creadas en ...todos los niveles de gobiernos afectan directa o indirectamente en el desarrollo sostenible de la actividad turística en áreas naturales protegidas (ANP) con patrimonio paleontológico. El área de análisis es el Parque de Dinosaurios contenido dentro del Parque Geológico Sanagasta (PGS), La Rioja, Argentina, ANP con un uso turístico fundado en los hallazgos paleontológicos. Método: revisión analítica y crítica de las políticas dedicadas a la conservación, protección y posterior desarrollo turístico en torno a estos sitios. Algunos resultados son: normativa carente de reglamentación que operativicen la gestión para lograr la participación de los actores relacionados con el turismo en unidades de conservación. Se considera necesario lograr un manejo compartido (publico-privado-comunidad- Estado) en pos de lograr una gestión turística adecuada.
Referência completa da obra: Kerche, Fábio; Feres Jr., João (Orgs). Operação Lava Jato e a democracia brasileira. São Paulo: Editora Contracorrente, 2018.
Purpose The present paper assessed the validity of single-item life satisfaction measures by comparing single-item measures to the Satisfaction with Life Scale (SWLS)—a more psychometrically ...established measure. Methods Two large samples from Washington (N = 13,064) and Oregon (N = 2,277) recruited by the Behavioral Risk Factor Surveillance System and a representative German sample (N = 1,312) recruited by the Germany Socio-Economic Panel were included in the present analyses. Single-item life satisfaction measures and the SWLS were correlated with theoretically relevant variables, such as demographics, subjective health, domain satisfaction, and affect. The correlations between the two life satisfaction measures and these variables were examined to assess the construct validity of single-item life satisfaction measures. Results Consistent across three samples, single-item life satisfaction measures demonstrated substantial degree of criterion validity with the SWLS (zero-order r = 0.62–0.64; disattenuated r = 0.78–0.80). Patterns of statistical significance for correlations with theoretically relevant variables were the same across single-item measures and the SWLS. Single-item measures did not produce systematically different correlations compared to the SWLS (average difference = 0.001–0.005). The average absolute difference in the magnitudes of the correlations produced by single-item measures and the SWLS was very small (average absolute difference = 0.015–0.042). Conclusions Single-item life satisfaction measures performed very similarly compared to the multiple-item SWLS. Social scientists would get virtually identical answer to substantive questions regardless of which measure they use.
•This provides a systematic, comprehensive review of two-phase instabilities.•Relevance to both macro- and micro-channels is carefully addressed.•Significant mechanistic differences among ...instabilities are addressed.•Confusion among studies over dominant instabilities is assessed.
Study of two-phase flow instabilities began in the late 1920′s, and in the nearly 100 years since, significant progress has been made in both experimental and theoretical understanding of them. Despite these advances, many key deficiencies remain, solution of which will provide appreciable value for system designers looking to leverage phase change heat transfer technologies in a safe and repeatable manner. The present review provides a systematic overview of all key two-phase instabilities focusing on the fundamental mechanisms leading to their occurrence. Emphasis is placed on how these mechanisms may change depending on whether flow may be classified as macro- or micro-channel, particularly relevant due to the modern proliferation of parallel micro-channel heat sinks. Extensive literature surveys are performed for each instability type, and strengths and weaknesses of existing literature assessed. Focus is placed on providing recommendations for future work based on the status of current literature. Important takeaways include the significant mechanistic differences for Density Wave Oscillations and Parallel Channel Instability between macro- and micro-channels, the need for better understanding of the role of parallel micro-channels on external pressure curves (impacting Ledinegg instability and Pressure Drop Oscillations), and the influence of size and position of compressible volume on Pressure Drop Oscillations.
We analyze a model economy with many agents, each with a different productivity level. Agents divide their time between two activities: producing goods with the production-related knowledge they ...already have and interacting with others in search of new, productivity-increasing ideas. These choices jointly determine the economy’s current production level and its rate of learning and real growth. We construct the balanced growth path for this economy. We also study the allocation chosen by an idealized planner who takes into account and internalizes the external benefits of search. Finally, we provide three examples of alternative learning technologies and show that the properties of equilibrium allocations are quite sensitive to two of these variations.
Life Events and Personality Trait Change Bleidorn, Wiebke; Hopwood, Christopher J.; Lucas, Richard E.
Journal of personality,
February 2018, Volume:
86, Issue:
1
Journal Article
Peer reviewed
Open access
Objective
Theory and research have emphasized the impact of life events on personality trait change. In this article, we review prospective research on personality trait change in response to nine ...major life events in the broader domains of love and work.
Method
We expected to find that life events lead to personality trait change to the extent that they have a lasting influence on individuals' thoughts, feelings, and behavior. Moreover, we predicted that love‐related life events such as marriage or parenthood would be more strongly related to changes in traits that emphasize affective content, whereas work‐related life events would be more likely to lead to change in traits that reflect behavioral or cognitive content.
Results
The current state of research provided some evidence that life events can lead to changes in personality traits and that different life events may be differently related to specific trait domains.
Conclusions
A more general conclusion emerging from this review is that the evidence for the nature, shape, and timing of personality trait change in response to life events is still preliminary. We discuss the implications of the results for theory and research and provide directions for future studies on life events and personality trait change.
As doenças cardiovasculares lideram a causa de mortalidade no mundo. O eletrocardiograma é uma das formas de obter o diagnóstico relacionado a doenças cardíacas. O exame consiste no registro da ...atividade elétrica do músculo cardíaco por meio de eletrodos posicionados nos braços, pernas e tórax do indivíduo. Neste trabalho estudamos o modelo de McSharry, que é capaz de reproduzir os sinais característicos do eletrocardiograma usando três equações diferenciais acopladas. Adicionando ao modelo um ruído e um termo senoidal, verificamos que essas modificações permitem alterar a característica do sinal de eletrocardiograma. Mostramos que é possível gerar sinais semelhantes àqueles que caracterizam anomalias no sistema cardiovascular. Utilizamos exames reais reportados pela Sociedade de Cardiologia do Estado do Rio de Janeiro para comparar com os resultados das simulações.
Cardiovascular diseases are the leading cause of mortality in the world. The electrocardiogram exam is one of the ways to obtain a diagnosis related to cardiac diseases. The exam consists of recording the electric activity of the heart using electrodes positioned on the arms, legs, and thorax. In this work, we study the McSharry model that is able to mimic the characteristic signals of the electrocardiogram by three differential equations. Considering a noise and a sinusoidal term in the model, we verify that these modifications allow a change to the signal characteristic. We show that is possible to generate electrocardiogram signals similar to those that characterize cardiovascular diseases. We use real exams reported by Sociedade de Cardiologia do Estado do Rio de Janeiro to compare with our simulations.
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