Electrophoresis reliability: I. The contaminant issue

The effects of the common contaminants--soil, oil, gasoline, salt, acid, base, bleach, and detergent--on various forensically used genetic marker systems were studied. The predicted effects of the various contaminants on the proteins and the electrophoretic separations agreed with the observed results. A contaminant that affected protein conformation also adversely affected the integrity of the electrophoretic system, thus signalling an anomaly. It also was pointed out that the ideal control study for the effects of contaminants on genetic markers in evidentiary material is often provided to forensic scientists--that is victim's blood on victim's clothing and other substrata. The data presented in this paper support the validity and reliability of electrophoretic analyses of evidentiary material with respect to the contaminant issue.     

Does the Money Matter? Examining the Source and Type of Child Welfare Dollars Through the Eyes of County Child Welfare Services Directors

Child abuse is addressed through a complicated design of federal, state, and local funds. Congress approved a new round of waivers permitting states to flexibly use funds, otherwise limited to foster care reimbursement, for other child welfare needs. Conducted in Ohio, this longitudinal study examined flexible funds from child welfare directors’ perspectives, including key informant interviews, a survey, and semi-structured interviews. Directors noted that improved discretion results in better child health outcomes and better community partnerships; community partnerships are essential to promoting the health and safety of vulnerable children; and federal child welfare success measures do not reflect directors’ perceptions of success.     

俄罗斯背景下的自由主义与民主的二律背反

20世纪90年代以来,俄罗斯的自由主义与民主并不是按照西方尤其是美国所希望的模式发展。自由主义与民主政治在后共产主义俄罗斯的背景下表现出明显的二律背反。俄罗斯自由主义的希望已基本消失,但俄罗斯政治的发展并不是不民主的,而是呈现出一种“不自由的民主”的发展模式。     

Informing public policy on science and innovation: the Advanced Technology Program’s experience

The Advanced Technology Program (ATP) collected a unique source of data from highly innovative firms beginning in 1993. These data follow the OECD’s guidelines for collecting innovation data and provide important insights for understanding the innovation process within firms. Although the data are not representative of the population of firms, there is sufficient number of firms in the dataset to test hypotheses and to provide a starting point for calls for innovation metrics. Because of the confidential nature of the data, ATP worked with the National Opinion Research Center (NORC) to create a Data Enclave so that researchers could remotely access the ATP data in a secure environment. To initiate the use of ATP data in the Data Enclave, the ATP program funded researchers to undertake research projects that use ATP data. Other organizations have joined the Data Enclave, including the Department of Agriculture and the Kauffman Foundation.

Perceptions of Relatedness with Classroom Peers Promote Adolescents’ Behavioral Engagement and Achievement in Secondary School

Secondary school is a vulnerable time where stagnation or declines in classroom behavioral engagement occur for many students, and peer relationships take on a heightened significance. We examined the implications of adolescents’ perceptions of relatedness with classroom peers for their academic learning. Participants were 1084 adolescents (53% female) in 65 middle and high school classrooms. Multilevel cross-lagged path analyses found that adolescents’ perceived relatedness with classroom peers subsequently predicted their increased self-reported behavioral engagement in that classroom from fall to winter and again from winter to spring. Higher engagement in spring predicted higher end of year objective achievement test scores after statistical control of prior year test scores. Implications are discussed for increasing classroom peer relatedness to enhance adolescents’ achievement.     

Using core competency frameworks to explore the needs of Kenyan youth workers

Since youth work is a relatively new career path, there is debate regarding the competencies necessary to advance overall professional practice. This debate is particularly relevant in African countries, such as Kenya, with a growing number of youth in need of assistance. The purpose of this study was to identify the competencies needed to meet the goals and challenges of Kenyan youth workers, and assess whether these competencies align with prominent youth development competency frameworks. Data were collected from Kenyan youth workers related to the challenges, goals, and barriers they faced. These data were matched to two competency frameworks. Four themes emerged: (1) programs management competencies are most important; (2) holistically developed youth is a primary goal; (3) differences exist in how competency frameworks map to Kenyan youth workers; and (4) all competencies are not equal in the view of youth workers. Implications for program and system development are discussed.     

How Quickly Do Corporations Respond to Changes in Tax Law? Evidence fromthe California Manufacturer's Investment Credit

An understanding of the timing of firm response to changes in corporate tax law is vital for accurately estimating the revenue impact of pending corporate tax legislation. Unfortunately, the literature does not contain any standard references describing the actual responses of firms to tax law changes. The recent adoption of California's Manufacturer's Investment Credit provides a unique opportunity to study how corporations adjust their tax payments in response to changes in tax law. For background, it is shown that even in the absence of law changes many corporations overpay on their estimated taxes, perhaps because of transactions costs or agency problems. Analysis of corporate tax payments indicates that taxpayers did adjust their estimated tax payments in response to the introduction of California's MIC, but that their response fell short of the response predicted by the zero transactions cost, perfect information model of the firm. Furthermore, firms whose MIC credit was large relative to their pre-MIC tax liability were less adept at adjusting to the law change than were firms for whom the MIC was relatively less important. As a result, the revenue loss to the State of California for 1995 tax year MIC credits is estimated to be spread out over four fiscal years.