科学史研究方法的重大改进——评拉卡托斯的"科学史的理性重建方法"

拉卡托斯的“科学史的理性重建方法”是其“科学研究纲领方法论”在科学史领域中的具体应用。该方法把科学哲学和科学史相结合 ,不仅对科学哲学的进步和科学史的深入研究起到重大的促进作用 ,而且从新的角度体现了“逻辑的与历史的相一致”的方法论原则 ,对丰富和发展马克思主义哲学方法具有重要的借鉴意义。     

Stepping to stability and fall prevention in adult psychiatric patients

Fall prevention is a major area of concern in inpatient settings. This article reports on the feasibility of implementing a daily exercise program that features line dancing to promote stability, balance, and flexibility in adult psychiatric patients and describes the impact of that program. Six hundred sixty-five patient charts drawn from before and after the practice change were reviewed. The fall rate after the introduction of line dancing was 2.8% compared with 3.2% before implementation. In a setting that treats both men and women of many ages and with varying levels of mobility, line dancing offers a viable approach to exercise in a secure setting.     

A calibrated imputation method for secondary data analysis of survey data

In practical survey sampling, missing data are unavoidable due to nonresponse, rejected observations by editing, disclosure control, or outlier suppression. We propose a calibrated imputation approach so that valid point and variance estimates of the population (or domain) totals can be computed by the secondary users using simple complete‐sample formulae. This is especially helpful for variance estimation, which generally require additional information and tools that are unavailable to the secondary users. Our approach is natural for continuous variables, where the estimation may be either based on reweighting or imputation, including possibly their outlier‐robust extensions. We also propose a multivariate procedure to accommodate the estimation of the covariance matrix between estimated population totals, which facilitates variance estimation of the ratios or differences among the estimated totals. We illustrate the proposed approach using simulation data in supplementary materials that are available online.     

A GAME THEORETIC ANALYSIS OF VOLUNTARY EUTHANASIA AND PHYSICIAN ASSISTED SUICIDE

In countries/states where voluntary euthanasia (VE) or physician-assisted suicide (PAS) is legal, the patient's decision about whether to request VE or PAS heavily relies on the information others provide. We use the tools of microeconomic theory to study how communication between the patient, his family and his physician influences the patient's decision. We argue that families have considerable power over the patient and that the amount of information that is transmitted from physician to patient might be severely diminished as a result of legalizing VE or PAS. We discuss our main results in the context of the ongoing normative debate over the legalization of VE and PAS. (JEL D8, I12)     

Psychometric Properties of a Portuguese Version of the Subjective Happiness Scale

The Subjective Happiness Scale (SHS) constitutes an instrument for assessing subjective happiness. This study aims to present the validation of the SHS in a Portuguese adult population. A large representative sample (1,017 participants), from five different age groups was considered. Configurational invariance of the unidimensional structure of the scale was tested through multi-group confirmatory factorial analysis, and reliability and criterion-validity were investigated. The results support the single factorial structure and reliability of the SHS. Furthermore, the SHS correlated positively with the Satisfaction with Life Scale, thus supporting its criterion validity. Therefore, the Portuguese version of the SHS is a valid instrument to use with an adult Portuguese Sample.     

Geographic Distributions of Extreme Weather Risk Perceptions in the United States

Weather and climate disasters pose an increasing risk to life and property in the United States. Managing this risk requires objective information about the nature of the threat and subjective information about how people perceive it. Meteorologists and climatologists have a relatively firm grasp of the historical objective risk. For example, we know which parts of the United States are most likely to experience drought, heat waves, flooding, snow or ice storms, tornadoes, and hurricanes. We know less about the geographic distribution of the perceived risks of meteorological events and trends. Do subjective perceptions align with exposure to weather risks? This question is difficult to answer because analysts have yet to develop a comprehensive and spatially consistent methodology for measuring risk perceptions across geographic areas in the United States. In this project, we propose a methodology that uses multilevel regression and poststratification to estimate extreme weather and climate risk perceptions by geographic area (i.e., region, state, forecast area, and county). Then we apply the methodology using data from three national surveys (n = 9,542). This enables us to measure, map, and compare perceptions of risk from multiple weather hazards in geographic areas across the country.     

On micro-foundations of dynamic capabilities: A multi-level perspective based on CEO personality and knowledge-based capital

In recent years, researchers have asked why some firms are better than others at developing dynamic capabilities. The existing literature assesses micro-foundations separately, either on the managerial or on the organizational level. This study aims to provide a more holistic picture on the antecedents of dynamic capabilities by integrating managerial and organizational micro-foundations. Specifically, we posit that the personality of Chief Executive Officers (CEOs), manifested through their core self-evaluation (CSE), represents an individual-level micro-foundation which influences three types of a firm's knowledge-based capital—human, social, and organizational capital. We also argue that these three, in turn, are organization-level micro-foundations that ultimately enable the development of a firm's dynamic capabilities. We test our multi-level framework using data from 307 German CEOs, and confirm that CEO CSE is positively related with all three forms of knowledge-based capital. We further find that human capital and organizational capital mediate the relationship between a CEO's CSE and a firm's dynamic capabilities. Our research contributes by extending a central framework of the micro-foundations project (the bathtub model) that integrates the upper echelons perspective into a multi-level analysis. We empirically validate this model and advance the understanding of how firm leaders indirectly influence firm dynamic capabilities by shaping individual learning conditions.     

The ins and outs of unemployment and the assimilation of recent immigrants in Spain

We study the employment assimilation of the recent wave of immigration in Spain for the period 2002–2006. We differentiate the immigrants by their year of arrival in Spain. Following Shimer (Am Econ Rev 95(1):25–49, 2005) and using data from the Spanish Labor Force Survey, we calculate the job finding and the job exit rates. Throughout the period, immigrants show higher job finding and job exit rates. We also present a search and matching model with search intensity, where natives, new immigrants, and old immigrants compete in the labor market. The simulated model is able to reproduce the differences observed in their job finding and unemployment rates.