960 resultados para Equations of state.


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Self-control strength may affect state anxiety because emotion regulation is impaired in individuals whose self-control strength has been temporarily depleted. Increases in state anxiety were expected to be larger for participants with depleted compared to nondepleted self-control strength, and trait test anxiety should predict increases in state anxiety more strongly if self-control strength is depleted. In a sample of 76 university students, trait test anxiety was assessed, self-control strength experimentally manipulated, and state anxiety measured before and after the announcement of a test. State anxiety increased after the announcement. Trait test anxiety predicted increases in state anxiety only in students with depleted self-control strength, suggesting that increased self-control strength may be useful for coping with anxiety.

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This study compares the performance of four commonly used approaches to measure consumers’ willingness to pay with real purchase data (REAL): the open-ended (OE) question format; choicebased conjoint (CBC) analysis; Becker, DeGroot, and Marschak’s (BDM) incentive-compatible mechanism; and incentive-aligned choice-based conjoint (ICBC) analysis. With this five-in-one approach, the authors test the relative strengths of the four measurement methods, using REAL as the benchmark, on the basis of statistical criteria and decision-relevant metrics. The results indicate that the BDM and ICBC approaches can pass statistical and decision-oriented tests. The authors find that respondents are more price sensitive in incentive-aligned settings than in non-incentive-aligned settings and the REAL setting. Furthermore, they find a large number of “none” choices under ICBC than under hypothetical conjoint analysis. This study uncovers an intriguing possibility: Even when the OE format and CBC analysis generate hypothetical bias, they may still lead to the right demand curves and right pricing decisions.

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This article discusses the tensions between the principle of state sovereignty and the idea of a "humanitarian intervention" (or a intervention on humanitarian grounds) as they resulted from the debate of leading legal scholars in the 19th and early 20th century. While prominent scholars such as Johann Caspar Bluntschli, Gustave Rolin Jaequemyns or Aegidius Arntz spoke out in favour of a form of "humanitarian interventions", others such as August Wilhelm Heffter or Pasquale Fiore were much more critical and in many cases spoke out in favour of absolute state sovereignty.

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This paper uses Data Envelopment Analysis to examine changes in levels of technical efficiency over time in China's state-owned enterprises (SOEs) during 1980-1989. Our paper adds to the growing body of literature in this area by obtaining measures of technical efficiency of individual SOEs over years and by identifying how different aspects of the reforms have affected efficiency. We estimate a Tobit regression model, using the technical efficiency score as the dependent variable and a set of reform variables and firm attributes as regressors. We find that specific aspects of the reforms were very effective in improving technical efficiency.

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This is an implementation analysis of three consecutive state health policies whose goal was to improve access to maternal and child health services in Texas from 1983 to 1986. Of particular interest is the choice of the unit of analysis, the policy subsystem, and the network approach to analysis. The network approach analyzes and compares the structure and decision process of six policy subsystems in order to explain program performance. Both changes in state health policy as well as differences in implementation contexts explain evolution of the program administrative and service unit, the policy subsystem. And, in turn, the evolution of the policy subsystem explains changes in program performance. ^

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In the recent decade China witnessed an upsurge of privatization of small and medium state-owned enterprises (SOEs). In contrast to the consequent sharp reduction in the number of firms, however, the estimated share of broadly-defined SOEs that includes limited liabilities companies controlled by the State has shown virtually no sign of decline. We explain the backgrounds of this seemingly paradoxical persistence of state-ownership by looking into two distinctive types of large SOEs: traditional SOEs that remain dominant in oligopolistic industries and manager-controlled SOEs surviving in competitive industries. The two types exemplify several factors constraining further progress of SOE reform such as, financing the costs of restructuring, redefining the role of the State as the single dominant shareholder, and balancing the interests of the State and managers as entrepreneurs. Sorting these issues out will take time, which means that instabilities associated with state corporate ownership will remain in place in the foreseeable future in China.

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Literature on agency problems arising between controlling and minority owners claim that separation of cash flow and control rights allows controllers to expropriate listed firms, and further that separation emerges when dual class shares or pyramiding corporate structures exist. Dual class share and pyramiding coexisted in listed companies of China until discriminated share reform was implemented in 2005. This paper presents a model of controller to expropriate behavior as well as empirical tests of expropriation via particular accounting items and pyramiding generated expropriation. Results show that expropriation is apparent for state controlled listed companies. While reforms have weakened the power to expropriate, separation remains and still generates expropriation. Size of expropriation is estimated to be 7 to 8 per cent of total asset at mean. If the "one share, one vote" principle were to be realized, asset inflation could be reduced by 13 percent.

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State-building is currently considered to be an indispensable process in overcoming state fragility: a condition characterized by frequent armed conflicts as well as chronic poverty. In this process, both the capacity and the legitimacy of the state are supposed to be enhanced; such balanced development of capacity and legitimacy has also been demanded in security sector reform (SSR), which is regarded as being a crucial part of post-conflict state-building. To enhance legitimacy, the importance of democratic governance is stressed in both state-building and SSR in post-conflict countries. In reality, however, the balanced enhancement of capacity and legitimacy has rarely been realized. In particular, legitimacy enhancement tends to stagnate in countries in which one of multiple warring parties takes a strong grip on state power. This paper tries to understand why such unbalanced development of state-building and SSR has been observed in post-conflict countries, through a case study of Rwanda. Analyses of two policy initiatives in the security sector - Gacaca transitional justice and disarmament, demobilization, and reintegration (DDR) - indicate that although these programs achieved goals set by the government, their contribution to the normative objectives promoted by the international community was quite debatable. It can be understood that this is because the country has subordinated SSR to its state-building process. After the military victory of the former rebels, the Rwandan Patriotic Front (RPF), the ruling elite prioritized the establishment of political stability over the introduction of international norms such as democratic governance and the rule of law. SSR was implemented only to the extent that it contributed to, and did not threaten, Rwanda's RPF-led state-building.

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The study of matter under conditions of high density, pressure, and temperature is a valuable subject for inertial confinement fusion (ICF), astrophysical phenomena, high-power laser interaction with matter, etc. In all these cases, matter is heated and compressed by strong shocks to high pressures and temperatures, becomes partially or completely ionized via thermal or pressure ionization, and is in the form of dense plasma. The thermodynamics and the hydrodynamics of hot dense plasmas cannot be predicted without the knowledge of the equation of state (EOS) that describes how a material reacts to pressure and how much energy is involved. Therefore, the equation of state often takes the form of pressure and energy as functions of density and temperature. Furthermore, EOS data must be obtained in a timely manner in order to be useful as input in hydrodynamic codes. By this reason, the use of fast, robust and reasonably accurate atomic models, is necessary for computing the EOS of a material.