46,664 research outputs found

    Cheiridium tetrophthalmum Daday, a new synonym of Larca lata (Hansen) (Pseudoscorpiones, Larcidae)

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    Cheiridium tetrophthalmum Daday, 1889 is removed from the synonymy of Geogarypus minor (L. Koch, 1873), and treated as a junior synonym of Larca lata (Hansen, 1884). The distribution of Larca lata and Geogarypus minor is documented, and L. lata is recorded from Hungary for the first time

    Natio et gens: Venice biennale 2009

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    The following is an informal reflection on the changing place of nationality and national consciousness in cultural life with reference to last year’s Biennale. Having drawn tentative inferences regarding the roles of these, we offer a selective review of what appear to us to be the most memorable national representations. These in turn suggest a paradoxical benefit which an awareness of localised histories may bring to artistic production

    Social Experimentation

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    Small reactor power systems for manned planetary surface bases

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    A preliminary feasibility study of the potential application of small nuclear reactor space power systems to manned planetary surface base missions was conducted. The purpose of the study was to identify and assess the technology, performance, and safety issues associated with integration of reactor power systems with an evolutionary manned planetary surface exploration scenario. The requirements and characteristics of a variety of human-rated modular reactor power system configurations selected for a range of power levels from 25 kWe to hundreds of kilowatts is described. Trade-off analyses for reactor power systems utilizing both man-made and indigenous shielding materials are provided to examine performance, installation and operational safety feasibility issues. The results of this study have confirmed the preliminary feasibility of a wide variety of small reactor power plant configurations for growth oriented manned planetary surface exploration missions. The capability for power level growth with increasing manned presence, while maintaining safe radiation levels, was favorably assessed for nominal 25 to 100 kWe modular configurations. No feasibility limitations or technical barriers were identified and the use of both distance and indigenous planetary soil material for human rated radiation shielding were shown to be viable and attractive options

    Public Finance: Essay for the Encyclopedia of Public Choice

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    Public Finance is the branch of economics that studies the taxing and spending activities of government. The term is something of a misnomer, because the fundamental issues are not financial (that is, relating to money). Rather, the key problems relate to the use of real resources. For this reason, some practitioners prefer the label public sector economics or simply public economics. Public finance encompasses both positive and normative analysis. Positive analysis deals with issues of cause and effect, for example, “If the government cuts the tax rate on gasoline, what will be the effect on gasoline consumption?” Normative analysis deals with ethical issues, for example, “Is it fairer to tax income or consumption?” Modern public finance focuses on the microeconomic functions of government, how the government does and should affect the allocation of resources and the distribution of income. For the most part, the macroeconomic functions of government--the use of taxing, spending, and monetary policies to affect the overall level of unemployment and the price level--are covered in other fields.

    Regional Income

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