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291.
Book reviews     
Datenhandbuch zur Geschichte des Deutschen Bundestages 1949 bis 1999. Edited by Peter Schindler. 3 Volumes. Baden‐Baden: Nomos, 1999. DM 98.

Finanzverfassung und Föderalismus in Deutschland und Europa. Edited by Thiess Buttner. Baden‐Baden: Nomos, 2000. DM 48 pb.

Krise und Reform des Föderalismus. Edited by Reinhard C. Meier‐Walser and Gerhard Hirscher. Munich: Olzog, 1999. DM 24.80.

Hinter den Kulissen von Regierungsbündnissen. Koalitionspolilik in Bund, Ländern und Gemeinden. Edited by Roland Sturm and Sabine Kropp. Baden‐Baden: Nomos, 1999. DM 74.

Austria — Out of the Shadow of the Past. By Anton Pelinka. Oxford: Westview Press, 1998.

Austria. World Bibliographical Series. Revised edition. Volume 66. By Michael Mitchell. Oxford: Clio Press, 1999.

The Official Concept of the Nation in the Former GDR. By Joanna McKay. Hants/Vermont: Ashgate, 1998.

NATO and the Future of European Security. By Sean Kay. Rowman and Littlefield, 1998.

Linguistics and the Third Reich: Mother‐Tongue Fascism and the Science of Language. By Christopher M. Hutton. Routledge Studies in the History of Linguistics. London and New York: Routledge, 1999.

The Language of the Third Reich. LTI ‐ Lingua Tertii Imperii. A Philologist's Notebook. By Victor Klemperer. Translated by Martin Brady. London and New Brunswick: The Athlone Press, 2000.

German Studies. Old and New Challenges. Undergraduate Programmes in the United Kingdom and the Republic of Ireland. Edited by Peter Rolf Lutzeier. Berne: Peter Lang, 1998 (German Linguistic and Cultural Studies, vol. 1).

EU Enlargement and its Macroeconomic Effects in Eastern Europe. Currencies, Prices, Investment and Competitiveness. By Hubert Gabrisch and Rüdiger Pohl. Basingstoke: Macmillan, 1999.

Welfare States in Transition. East and West. By Irwin Collier, Herwig Roggemann, Oliver Scholz and Horst Tomann. Basingstoke: Macmillan, 1999.

Economic Transition in Hungary and East Germany. Gradualism and Shock Therapy in Catch‐up Development. By Johannes Stephan. Basingstoke: Macmillan, 1999.

Doing Business with Germany. Edited by Jonathan Reuvid and Roderick Millar (consultant eds.). In association with German‐British Chamber of Industry and Commerce, PricewaterhouseCoopers and Eversheds. Business Lawyers in Europe. London: Kogan Page, 2nd edn. 1999. Reprinted 2000.

The German Skills Machine: Sustaining Comparative Advantage in a Global Economy. Edited by Pepper D. Culpepper and David Finegold. Berghahn Books, 1999.

Reconstructing Education. By Rosalind M.O. Pritchard. New York and Oxford: Berghahn Books, 1999.

In a Cold Crater: Cultural and Intellectual Life in Berlin, 1945–1948. By Wolfgang Schivelbusch. Translated by Kelly Barry. Berkeley: University of California Press, 1998.

The Longman Companion to Germany Since 1945. By Adrian Webb. London: Longman, 1998.

Ausgewcihlte Aspekte des Transformationsprozesses im Cesundheitswesen der neuen Bundeslander. Edited by Viola Schubert‐Lehnhardt, Christel Gibas and Birgit Möbest. Berlin: Trafo Verlag, 1998.

Lebensbedingungen, Lebensgestaltung und Lebensinn von älteren Frauen in Deutschland und Europa. Edited by Viola Schubert‐Lehnhardt. Berlin: Trafo Verlag, 2000.  相似文献   
292.
When a firearm has been disposed of in a body of water and becomes corroded, its appearance is altered and determining a time-since-immersion may be of import to the investigation. Therefore, in this study, the corrosion and mass loss of four handgun slides over a period of 180 days were examined. Solid-state characterization of the metals and their corrosion products via SEM/EDX and powder X-ray Diffraction (pXRD) was performed. The pXRDs were analyzed against the NIST Powder Diffraction Database to determine the crystalline phases. Filings from the SS416 standard, Llama and Ruger handgun slide predominantly consisted of iron alloys. After 180-days in solution, pXRD indicated that the adherent corrosion products consisted of 1) γ-FeOOH and 2) iron oxide (Fe3O4 or Fe2O3). Additionally, pXRD analysis indicated that the adherent corrosion products of the SS416 standard also consisted of CrO3. Metal filings from the Raven and Jennings handgun slides were a mixture of iron–nickel–zinc and EDX and pXRD analyses of the corrosion products, when submersed in deionized water, indicated that the products consisted of: 1) γ-FeOOH, 2) iron oxide (Fe3O4 or Fe2O3), and 3) ZnFe2O4 or ZnO; where the Jennings adherent rust contained ZnFe2O4 and the Raven adherent rust contained ZnO. Further, pXRD of the corrosion products from these alloys, when submersed in 25 PSU (Practical Salinity Unit) solution, indicated that the products consisted of: 1) ZnO, 2) Zn(OH)2, 3) α-Ni(OH)2, and 4) NaCl.The data thus indicated that both metal composition and the presence of chloride ions had significant impacts on rates and products of corrosion and suggest that the presence of Cl? changes not only the rate of corrosion, but also the corroding species itself. While mechanisms and rates of the chloride driven corrosion processes offer explanations as to the different oxides and hydroxides observed between immersion conditions, they do not offer an explanation for the differences observed between handguns. Therefore, utilizing a general approach where surface area coverage of corrosion products is the sole consideration is not sufficient to determine time-since-immersion. Attempts to determine a time-since-immersion would require a priori knowledge of the mechanism of corrosion for a given metal mixture within a specified environment. The results described herein give indications as to the possible corrosion mechanism driving the process in high and low Cl? environments and show the necessity of including the metal composition, rust composition and ion concentration in any models that attempt to elucidate the time-since-immersion of handguns for forensic applications.  相似文献   
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Policy Sciences - National policy on global health (NPGH) arenas are multisectoral governing arrangements for cooperation between health, development, and foreign affairs sectors in government...  相似文献   
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Purpose

This twin study examined the structure of genetic and environmental influences on aggression and rule-breaking in order to examine change and stability across the span of childhood to mid-adolescence.

Methods

Behavioral assessments were conducted at two time points: age 9–10 years and 14–15 years. Using behavioral genetics biometric modeling, the longitudinal structure of influences was investigated.

Results

Aggression and rule-breaking were found to be influenced by a latent common factor of antisocial behavior (ASB) within each wave of data collection. The variance in the childhood-age common factor of ASB was influenced by 41% genetics, 40% shared environment and 19% nonshared environment. In adolescence, 41% of variance in the common factor were novel and entirely genetic, while the remainder of variance was stable across time. Additionally, both aggression and rule-breaking within each wave were found to have unique influences not common across subscales or across waves, highlighting specificity of genetic and environmental effects on different problem behaviors at both ages.

Conclusions

This research sheds light on the commonality of influences on different forms of antisocial behavior. Future research into interventions for antisocial behavior problems in youth could focus on adolescence-specific environmental influences.  相似文献   
299.
There is abundant evidence that research collaboration has become the norm in every field of scientific and technical research. We provide a critical overview of the literature on research collaboration, focusing particularly on individual-level collaborations among university researchers, but we also give attention to university researchers’ collaborations with researchers in other sectors, including industry. We consider collaborations aimed chiefly at expanding the base of knowledge (knowledge-focused collaborations) as well as ones focused on production of economic value and wealth (property-focused collaborations), the latter including most academic entrepreneurship research collaborations. To help organize our review we develop a framework for analysis, one that considers attributes of collaborators, collaborative process and organization characteristics as the affect collaboration choices and outcomes. In addition, we develop and use a “Propositional Table for Research Collaboration Literature,” presented as an “Appendix” to this study. We conclude with some suggestions for possible improvement in research on collaboration including: (1) more attention to multiple levels of analysis and the interactions among them; (2) more careful measurement of impacts as opposed to outputs; (3) more studies on ‘malpractice’ in collaboration, including exploitation; (4) increased attention to collaborators’ motives and the social psychology of collaborative teams.  相似文献   
300.
Risk,Credit Constraints and Financial Efficiency in Peruvian Agriculture   总被引:1,自引:0,他引:1  
Based on a panel data set, we use a two-stage analysis to evaluate the effects of access to formal credit on financial efficiency of farms in northern Peru. The first stage uses non-parametric data envelope analysis to estimate farm-specific measures of financial efficiency; 28 per cent of farmers are financially inefficient and credit constraints reduce profits of these farmers by an average of between 17 and 27 per cent. The second stage uses Tobit regression to evaluate the determinants of financial inefficiency; the results point to uninsured risk as a key determinant of financial inefficiency and suggest that policies to strengthen agricultural insurance markets would likely pay large dividends in rural Peru.  相似文献   
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