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21.
Franz Xavier Barrios-Suvelza 《国际公共行政管理杂志》2019,42(5):432-454
Fiscal federalism has offered a template for understanding intergovernmental fiscal relations. Yet when politicians are involved in day-to-day decentralization it may happen that some of the normative elements of fiscal federalism do not fit reality. Substate entities may go beyond the own-source paradigm and have a practical interest in alternative forms of fiscal self-rule. To better understand this pragmatism a threefold stage model of territorial revenue assignment is presented drawing on some insights offered by Germany’s fiscal constitution. Within this framework a reassessment of the role of territorial levels as levels during vertical revenue assignment is undertaken, a new typology of fiscal self-rule is introduced, and finally a theory of multiple territorial fiscal balance points is outlined, including the one based on the real domain of substate own policy-making. 相似文献
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We estimate the impact of having attended centre-based daycare institutions during early childhood on math test scores at the fourth grade level of elementary school. We find evidence that daycare attendance has a net impact on math proficiency, and that the effects are heterogeneous. The effect of daycare and kindergarten attendance on proficiency varies according to mother’s education. The effects of the impact of daycare vary from ?0.28 standard deviation for mothers with no education to 0.42 standard deviation for mother’s with college or more. 相似文献
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This note summarises our replication study ‘Housing, Health, and Happiness’, henceforth HHH2009, which constitutes an important paper in the literature of housing and slum upgrading. The original authors conduct a quasi-experimental impact evaluation of ‘Piso Firme’, an intervention that replaced in-house dirt floors with cement in Mexico. We conduct a Pure Replication (PR), a Measurement and Estimation Analysis (MEA), and a Theory of Change Analysis (TCA). In our PR, we did not find any major discrepancy with the original study. In the MEA, we generally find the results to be strongly robust to different types of alternative analysis. Finally, in TCA we explore a dimension that was not reported on the published version of the study and found that households with high initial levels of cement-floor coverage benefitted significantly less from Piso Firme’s intervention. These findings are discussed in greater detail on International Initiative for Impact Evaluation’s (3ie) working paper version. 相似文献
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Krenke BE Viculis L Richard ML Prinz M Milne SC Ladd C Gross AM Gornall T Frappier JR Eisenberg AJ Barna C Aranda XG Adamowicz MS Budowle B 《Forensic science international》2005,148(1):1-14
Y chromosome-specific short tandem repeat (Y-STR) analysis has become another widely accepted tool for human identification. The PowerPlex Y System is a fluorescent multiplex that includes the 12 loci: DYS19, DYS385a/b, DYS389I/II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438 and DYS439. This panel of markers incorporates the 9-locus European minimal haplotype (EMH) loci recommended by the International Y-STR User Group and the 11-locus set recommended by the Scientific Working Group on DNA Analysis Methods (SWGDAM). Described here are inter-laboratory results from 17 developmental validation studies of the PowerPlex Y System and include the following results: (a) samples distributed between laboratories and commercial standards produced expected and reproducible haplotypes; (b) use of common amplification and detection instruments were successfully demonstrated; (c) full profiles were obtained with standard 30 and 32 cycle amplification protocols and cycle number (24-28 cycles) could be modified to match different substrates (such as direct amplification of FTA paper); (d) complete profiles were observed with reaction volumes from 6.25 to 50 microL; (e) minimal impact was observed with variation of enzyme concentration; (f) full haplotypes were observed with 0.5-2x primer concentrations; however, relative yield between loci varied with concentration; (g) reduction of magnesium to 1mM (1.5 mM standard) resulted in minimal amplification, while only partial loss of yield was observed with 1.25 mM magnesium; (h) decreasing the annealing temperature by 2-4 degrees C did not generate artifacts or locus dropout and most laboratories observed full amplification with the annealing temperature increased by 2 degrees C and significant locus dropout with a 4 degrees C increase in annealing temperature; (i) amplification of individual loci with primers used in the multiplex produced the same alleles as observed with the multiplex amplification; (j) all laboratories observed full amplification with >or = 125 pg of male template with partial and/or complete profiles observed using 30-62.5 pg of DNA; (k) analysis of < or = 500 ng of female DNA did not yield amplification products; (l) the minor male component of a male/female mixture was observed with < or =1200-fold excess female DNA with the majority of alleles still observed with 10,000-fold excess female; (m) male/male mixtures produced full profiles from the minor contributor with 10-20-fold excess of the major contributor; (n) average stutter for each locus; (o) precision of sizing were determined; (p) human-specificity studies displayed amplification products only with some primate samples; and (q) reanalysis of 102 non-probative casework samples from 65 cases produced results consistent with original findings and in some instances additional identification of a minor male contributor to a male/female mixture was obtained. In general, the PowerPlex Y System was shown to have the sensitivity, specificity and reliability required for forensic DNA analysis. 相似文献
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Validation of male-specific, 12-locus fluorescent short tandem repeat (STR) multiplex 总被引:1,自引:0,他引:1
Krenke BE Viculis L Richard ML Prinz M Milne SC Ladd C Gross AM Gornall T Frappier JR Eisenberg AJ Barna C Aranda XG Adamowicz MS Budowle B 《Forensic science international》2005,151(1):111-124
Y chromosome-specific short tandem repeat (Y-STR) analysis has become another widely accepted tool for human identification. The PowerPlex Y System is a fluorescent multiplex that includes the 12 loci: DYS19, DYS385a/b, DYS389I/II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438 and DYS439. This panel of markers incorporates the 9-locus European minimal haplotype (EMH) loci recommended by the International Y-STR User Group and the 11-locus set recommended by the Scientific Working Group on DNA Analysis Methods (SWGDAM). Described here are inter-laboratory results from 17 developmental validation studies of the PowerPlex Y System and include the following results: (a) samples distributed between laboratories and commercial standards produced expected and reproducible haplotypes; (b) use of common amplification and detection instruments were successfully demonstrated; (c) full profiles were obtained with standard 30 and 32 cycle amplification protocols and cycle number (24-28 cycles) could be modified to match different substrates (such as direct amplification of FTA paper); (d) complete profiles were observed with reaction volumes from 6.25 to 50 microL; (e) minimal impact was observed with variation of enzyme concentration; (f) full haplotypes were observed with 0.5-2x primer concentrations; however, relative yield between loci varied with concentration; (g) reduction of magnesium to 1mM (1.5 mM standard) resulted in minimal amplification, while only partial loss of yield was observed with 1.25 mM magnesium; (h) decreasing the annealing temperature by 2-4 degrees C did not generate artifacts or locus dropout and most laboratories observed full amplification with the annealing temperature increased by 2 degrees C and significant locus dropout with a 4 degrees C increase in annealing temperature; (i) amplification of individual loci with primers used in the multiplex produced the same alleles as observed with the multiplex amplification; (j) all laboratories observed full amplification with >or = 125 pg of male template with partial and/or complete profiles observed using 30-62.5 pg of DNA; (k) analysis of < or = 500 ng of female DNA did not yield amplification products; (l) the minor male component of a male/female mixture was observed with < or =1200-fold excess female DNA with the majority of alleles still observed with 10,000-fold excess female; (m) male/male mixtures produced full profiles from the minor contributor with 10-20-fold excess of the major contributor; (n) average stutter for each locus; (o) precision of sizing were determined; (p) human-specificity studies displayed amplification products only with some primate samples; and (q) reanalysis of 102 non-probative casework samples from 65 cases produced results consistent with original findings and in some instances additional identification of a minor male contributor to a male/female mixture was obtained. In general, the PowerPlex Y System was shown to have the sensitivity, specificity and reliability required for forensic DNA analysis. 相似文献
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The attention of scholars and policy-makers is shifting from full privatisation to alternative measures as a means to improve the efficiency of public services. This article focuses on three restructuring measures adopted by local governments: partial privatisation (without transfer of control rights), inter-municipal joint ventures, and the presence of outside directors on the Board. Divergent hypotheses on these measures have emerged from two economic theories, namely public choice and the agency perspective. An empirical analysis investigates the effects of restructuring processes on a sample of Italian municipal utilities. Partial privatisation has been shown to play a significant and positive role, while Board independence from management has a less significant influence. Multi-government utilities have been found to suffer from severe coordination costs, which are not outweighed by scale benefits. Our findings reveal that management discretion is a significant source of inefficiency in municipal enterprises. 相似文献
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Improving locational outcomes emerged as a major policy hope for the nation's largest low-income housing program over the past two decades, but a host of supply and demand-side barriers confront rental voucher users, leading to heated debate over the importance of choice versus constraint. In this context, we examine the Moving to Opportunity experiment's first decade, using a mixed-method approach. MTO families faced major barriers in tightening markets, yet diverse housing trajectories emerged, reflecting variation in: (a) willingness to trade location – in particular, safety and avoidance of “ghetto” behavior – to get larger, better housing units after initial relocation; (b) the distribution of neighborhood types in different metro areas; and (c) circumstances that produced many involuntary moves. Access to social networks or services “left behind” in poorer neighborhoods seldom drove moving decisions. Numerous moves were brokered by rental agents who provided shortcuts to willing landlords but thereby steered participants to particular neighborhoods. 相似文献
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Xavier de Souza Briggs 《Housing Policy Debate》2013,23(1):177-221
Abstract Social capital has many faces in the geography of urban opportunity, and as such, particular housing policies might have positive effects on some forms of social capital and negative effects on others. The author defines social support and social leverage as two key dimensions of social capital that can be accessed by individuals. A sample of 132 low‐income African‐American and Latino adolescents is used to examine the early impacts of a Yonkers, NY, housing mobility program on social capital.1 Overall, program participants (‘’movers‘’) appear to be no more cut off from social support than a control group of “stayer” youth. On the other hand, movers are also no more likely to report access to good sources of job information or school advice— to leverage that might enhance opportunity. Adding just one steadily employed adult to an adolescent's circle of significant ties has dramatic effects on perceived access to such leverage. 相似文献
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