Particle and string fluid interpretation for the scalar sector of Kaluza-Klein theories

The scalar sector of the effective low-energy six-dimensional Kaluza-Klein theory is seen to represent an anisotropic fluid composed of two perfect fluids if the extra space metric has a Euclidean signature, or a perfect fluid of geometric strings if it has an indefinite signature. The Einstein field equations with such fluids can be explicitly integrated when the four-dimensional space-time has two commuting Killing vectors.

Statewide Economic Impacts of Disaster-Related Payments to Support Household and Private and Public Sector Recovery in Iowa, January 2010

There have been a multitude of programs providing assistance to the state of Iowa in the past 18 months. Springtime 2008 disasters resulted in tornado damage and widespread flood damage to large fractions of the state. In consequence, there was a very large flow of federal and state resources dedicated to assisting community and statewide recovery efforts. The nation was in recession as well and continued to be in recession through much of 2009. A sizeable amount of assistance found its way to Iowa under the American Recovery and Reinvestment Act of 2009 in the forms of infrastructure stimulus spending, income supports and other safety net spending for households, and stabilization assistance for essential public services like education. On top of that, the state of Iowa authorized the I Jobs program as an additional infrastructure development program, and as a jobs stimulus program. The total amount of spending for all types of programs, disaster or economic recovery related, is perhaps as high as $7.5 billion over the next few years.

Iowa Private Sector Prison Employment Works, Data Download, Iowa Department of Corrections, November 2006

This issue of the ICON Data Download describes highlights from the findings for the Iowa sample, which tracked 1,091 inmates who worked in private sector prison industries jobs and were released from prison between 1999 and 2001, and compared their results with similar offenders who had worked in either traditional prison industries, or other institutional jobs. All offenders were tracked through mid-2003. This results in a follow-up period of slightly less than two years up to four and one-half years.

Control de serveis externalitzats: consideració sobre la Llei 30/2007, de 31 d'octubre, de Contractes del Sector Públic

S'explica el que preveu a la Llei 30/2007 de Contractes del Sector Públic en matèria de control del serveis externalitzats. La poca exigència de la llei fa concloure que a Espanya es produeix el fenomen conegut com captura o segrest del regulador.

Worksharing and access discounts in the postal sector with asymmetrics information

This paper analyses the optimal worksharing discount granted to mailers and entrants in a liberalized sector when there is asymmetric information about the Post Office's cost. When the regulator is unable to ascertain which part of total cost of sorting has to be attributed to each sorting facility, the optimal 'accesss discount' given to the entrants is set in a pro-competitive way, thus facilitating the entry of firms that are less afficient than the Post Office. Howerver, with the same asymmetry of information, the optimal 'worksharing discount' given to the mailers is set to favor the Post Office, even when it is less efficient than the mailers in providing the sorting.

A propósito de la simplificación impositiva en Derecho Comparado: la Contabilidad simplificada en Italia y los "Estudios de Sector" para el cálculo presuntivo de las liquidaciones tributarias

En el presente trabajo se analizan diferentes mecanismos de simplificación contable y tributaria del ordenamiento tributario italiano. En particular, se estudian regímenes como: el régimen de contabilidad simplificado, supersimplificado, forfetario, de actividades marginales u otros. También se estudia el sistema objetivo de determinación de la base imponible denominado "estudio de sectores".

Molist, N. (ed.). La intervenció al sector 01 del Conjunt Històric d'Olèrdola. De la prehistòria a l'etapa romana (campanyes 1995-2006). Monografies d'Olèrdola, 2.

En muchas ocasiones, el conocimiento y la importancia de los grandes yacimientos arqueológicos son dos conceptos diferentes. La adecuación museográfica y las referencias específicas a materiales o intervenciones puntuales pueden enmascarar el valor real de los datos científicos que se conocen sobre ellos, limitando así su importancia dentro del conjunto de la información necesaria para la realización de síntesis y el conocimiento exhaustivo de un período histórico. En muchos casos, se añade la prolongación en el tiempo de excavaciones e intervenciones de consolidación cuyos resultados tardan en ser publicados o bien no llegan nunca a ver la luz, por lo que permanecen en los intrincados vericuetos del circuito científico, quedando como referencias de transmisión personal y provocando innecesarios vacíos en el conocimiento.

HRM Practices, Intrinsic Motivators, and Organizational Performance in the Public Sector

This article aims to determine the impact of human resource management (HRM) practices on public service motivation (PSM) and organizational performance. Based on a survey of Swiss cantonal public employees (N = 3,131), this study shows that several HRM practices may be considered as organizational antecedents of PSM and strong predictors of perceived organizational performance. Fairness, job enrichment, individual appraisal, and professional development are HRM practices that are positively and significantly associated with PSM and perceived organizational performance. Moreover, these results suggest that HRM practices are stronger predictors than either PSM or organizational commitment when explaining the individual perception of organizational performance.

Los retos del regulador en la consolidación del proceso de liberlización del sector eléctrico

La conexión entre energía e industrialización es un hecho universal y bien documentado desde hace más de dos siglos, cuando la máquina de vapor que permitió convertir la energía calorífica del carbón en energía mecánica supuso un gran avance histórico. En este sentido, el rasgo dominante de todo el siglo xx ha sido un intenso crecimiento de la demanda de energía, especialmente acusado en las décadas posteriores a la segunda guerra mundial, asociado al proceso de intenso crecimiento económico.

Analisis litosismico y estructura sedimentaria de la plataforma interna al Norte del Delta del Ebro (Sector de Vandellos)

El análisis sísmico de perfiles de alta resolución del tipo ((uniboom)), realizados en la plataforma interna al N del Delta del Ebro, permite definir las unidades sísmicas y establecer la estructura sedimentaria del recubrimiento cuaternario medio/superior. Ambos aspectos reflejan la influencia diferencial de los procesos dinámicos y de las oscilaciones eustáticas.

Estructura de las sales messinienses y de los depósitos sincinematicos asociados en el sector Noreste del surco de Valencia

Se describen tres tipos principales de acumulaciones salinas a partir de la interpretación de los perfiles de sísmica de reflexión de las campañas ENIEPSA-MAP-77 (1977) y WESTERN GEOPHYSICAL COMPANY OF AMERICA-MEDS (1973) en el sector norte del surco de Valencia. Los principales tipos de estructuras salinas son rollers de sal, almohadillas y diapiros que se disponen en tres cinturones paralelos al límite de la sal messiniense.

Recruiting and Retaining Women and Minorities in Public Sector Engineering Positions, HR-348, 1995

The objective of phase one of this research was to assess the degree to which currently employed Iowa Department of Transportation (DOT) employees would be affected by a more aggressive policy to recruit and retain women and minority engineers. The DOT's "Future Agenda" was used as a baseline to focus on efforts to update and implement a recruitment plan that would target underrepresented classes. The primary question that emerged out of phase one was how could the Iowa DOT strengthen its ties with Iowa State University (ISU) to produce increased numbers of in-state applicants for engineering positions. This introduced the objective of phase two, which was to identify problem areas resulting in unacceptably high attrition rates for women, minorities, and to a lesser degree, Caucasian men in the College of Engineering at ISU, particularly Civil and Construction Engineering (CCE). Past research has focused on (1) projected shortages of qualified civil engineers, (2) the obstacles confronting women in a traditionally male-oriented profession, and (3) minorities who are often unprepared to succeed in the rigors of an engineering curriculum because of a lack of academic preparedness. The researchers in this study, in contrast, chose to emphasize institutional reasons why women, minorities, and some Caucasian men often feel a sense of isolation in the engineering program. It was found that one of the key obstacles to student retention is the lack of visibility of the civil engineering profession. The visibility problem led to the hypothesis that many engineering students do not have a clear conception of what the practice of civil engineering entails. It was found that this may be a better predictor of attrition than the stereotypical assumption that a majority of students leave their engineering programs because they are not academically able to compete. Recommendations are offered to strengthen the ties between ISU's Department of CCE and the Iowa DOT in order to counter the visibility issue. It was concluded that this is a vital step because over the next 5-15 years 40% of DOT engineers currently employed will be phasing into retirement. If the DOT expects to draw sufficient numbers of engineers from within the state of Iowa and if increasing numbers of them are to be women and minorities, a university connection will help to produce the qualified applicants to fulfill this need.