School choice,racial segregation,and test‐score gaps: Evidence from North Carolina's charter school program*

Using panel data that track individual students from year to year, we examine the effects of charter schools in North Carolina on racial segregation and black‐white test score gaps. We find that North Carolina's system of charter schools has increased the racial isolation of both black and white students, and has widened the achievement gap. Moreover, the relatively large negative effects of charter schools on the achievement of black students is driven by students who transfer into charter schools that are more racially isolated than the schools they have left. Our analysis of charter school choices suggests that asymmetric preferences of black and white charter school students (and their families) for schools of different racial compositions help to explain why there are so few racially balanced charter schools. © 2006 by the Association for Public Policy Analysis and Management.     

An improved method for post-PCR purification for mtDNA sequence analysis

Mitochondrial DNA (mtDNA) analysis of forensic samples typically is performed when the quantity and quality of DNA are insufficient for nuclear DNA analysis or when maternal relatives may be the only reference source. Many of the steps required in the analytical process are both lengthy and labor intensive. Therefore, improvements in the process that reduce labor without compromising the quality of the data are desirable. The current procedure requires purification of the amplicons by centrifugal filtration after PCR and prior to cycle sequencing. Because this method requires several manipulations to perform, alternate cleanup procedures were investigated. These include the use of 1) Qiagen QlAquick PCR Purification columns, 2) Concert Rapid PCR Purification columns, and 3) ExoSAP-IT reagent. When the yield of purified amplicons, quality of the sequence profile, and ease of assay were evaluated, the use of ExoSAP-IT reagent for post-amplification purification was chosen to replace the filtration method.     

Why courts cannot deny ADA protection to plaintiffs who do not use available mitigating measures for their impairments

Congress intended the Americans with Disabilities Act ("ADA") to provide strong standards for addressing and eliminating discrimination against individuals with disabilities. Many commentators have concluded, however, that the federal courts are undermining the goals of the ADA by too narrowly construing membership in the statute's protected class. One example of this trend is courts' hostile treatment of ADA plaintiffs who do not use medications or devices that might alleviate their impairments ("nonmitigating plaintiffs"). Numerous district and appellate decisions have held or suggested that nonmitigating plaintiffs are not protected by the ADA. In addition, some commentators have proposed that courts should evaluate the reasonableness of a plaintiff's decision not to use mitigating measures; they argues that it is unfair to burden an employer with the cost of accommodating a disability that continues to exist only because an employee unreasonably refuses to mitigate it. Contrary to the views of these courts and commentators, however, this Comment will show that nonmitigating plaintiffs are entitled to ADA protection from employment discrimination. It argues that the statute's language, history, and structure, as well as Supreme Court precedent, demonstrate that courts cannot deny ADA protection based on a plaintiff's nonuse of available mitigating measures. It also presents several considerations that weigh against any future congressional enactment that would tie ADA protection to the reasonableness of a plaintiff's decision not to mitigate an impairment.     

Studying contemporary Europe

The study of contemporary Europe has attracted growing attention in mainstream political science and international relations. Both studies of the European Union and cross-country comparisons of various political phenomena in different European countries are beginning to enrich our understanding of the process and limitations of integration. This growth of interest has also been stimulated by the opening up of central and eastern Europe which has encouraged scholars to address the issues of transformation using the tools of comparative politics. In addition, studies of Europeanisation are now being more systematically related to broader international developments and to the process of globalisation. British scholars, and British-based scholars, are making important contributions to the debates in political science and international relations. This review article traces some of the strands of this development.     

Divorcing Responsibly

In this article I argue that Part II of the Family LawAct 1996 gives expression to a new form ofresponsibility. I begin by suggesting thatresponsible behaviour has shifted from prohibiting orrequiring particular actions: we now exhibitresponsibility by our attitude towards our actions. I then examine where this new conception ofresponsibility has come from. Through an examinationof the work of post-liberal theorists, principallyMichael Sandel, I argue that a changing view ofpersonhood within post-liberal theory has led to aquestioning of the possibility of choice, and that theabsence of choice necessitates a shift in thedefinition of responsible behaviour. If we are createdby our decisions then we cannot be held to account forour decisions, but only for the care we have takenover them. Responsibility is therefore measured notby our level of self-control but by our level ofself-awareness. Finally I examine the consequences ofthis shift in the meaning of responsibility. Withinthis framework autonomy is illusory thereforedecisions do not need to be respected. This explainswhy the implementation of Part II of the Family LawAct 1996 has been called into question. Within thisframework responsibility is relative therefore itextends indefinitely. This enables the Family Law Actto be uniquely intrusive and judgmental: everydivorcing couple, on being held up to scrutiny, isfound lacking.