Controversy persists over the link between turnout and the likelihood of success of Democratic candidates (e.g., DeNardo, 1980, 1986; Zimmer, 1985; Tucker and Vedlitz, 1986; Piven and Cloward, 1988; Texeira, 1992; Radcliff, 1994, 1995; Erikson, 1995a, b). We argue that the authors in this debate have largely been talking past one another because of a failure to distinguish three quite different questions. The first question is: “Are low turnout voters more likely to vote Democratic than high turnout voters?” The second question is: “Should we expect that elections in which turnout is higher are ones in which we can expect Democrats to have done better?” The third question is the counterfactual: “If turnout were to have increased in some given election, would Democrats have done better?” We show the logical independence of the first two questions from one another and from the third, and argue that previous researchers have failed to recognize this logical independence – sometimes thinking they were answering question three when in fact they were answering either question one or question two. Reviewing previous research, we find that the answer to the first question once was YES but, for more recent elections at the presidential level, now appears to be NO, while, for congressional and legislative elections, the answer to the second question appears generally to be NO. However, the third question is essentially unanswerable absent an explicit model of why and how turnout can be expected to increase, and/or analyses of individual level panel data. Thus, the cross-sectional and pooled data analyses of previous research are of almost no value in addressing this third question.
This study examined the mediating roles of several family variables in the relation between IPV witnessing and children’s
emotional and behavioral problems among 129 low-income, African American children ages 8 to 12. According to the mediational
model tested, experiencing or witnessing IPV negatively impacted the following family variables: maternal psychopathology,
family cohesion, and relatedness quality, which were subsequently associated with diminished child adjustment. These findings
were stronger when child reports were considered and when the outcome variable was internalizing problems. Findings from this
study support the value of targeting these variables in the development of culturally appropriate child witness interventions
for low-income African American families. Recommendations for future interventions based on study conclusions are offered. 相似文献
Corrosion of α‐phase brass by sebaceous sweat fingerprint deposits produced identifiable impressions in a majority of samples (n = 40) 4 days after deposition. Combining sebaceous with eccrine sweat yielded a greater percentage of identifiable fingerprint deposits, although this increase was not statistically significant. Production of identifiable fingerprints from eccrine sweat deposits was dependent on the sampling time of year with deposits taken during summer months giving similar percentages of identifiable fingerprints to sebaceous deposits. A statistically significant positive correlation was found between elapsed days after deposition and identifiable eccrine (ρ = 0.787, p < 0.05), sebaceous (ρ = 0.724, p < 0.05), and eccrine/sebaceous mixture (ρ = 0.908, p < 0.01) fingerprints deposited during summer months. The summer increase in the percentage of identifiable eccrine sweat deposits was statistically significant compared to winter eccrine deposits (p < 0.0001). Observations were consistent with results obtained from artificial sebaceous and eccrine sweat. 相似文献
An ELISA method for the detection of salivary amylase in dried stains using a monoclonal anti-human salivary amylase antibody was developed. Studies demonstrated the assay to be sensitive down to 0.0002 Sigma units and showed a linear response between absorbance and salivary amylase activity between 0.002 and 0.2 units. The assay showed no cross reactivity with either commercially purchased human pancreatic or bacterial amylase. Sample studies utilizing swabs from several human body fluids showed that 100% of all saliva containing swabs (sixteen of sixteen) and 13% of non-saliva human body fluid swabs (eight of sixty-three) showed a net absorbance with the method. Of these eight non-saliva swabs yielding a net absorbance, none exceeded a salivary amylase activity of 0.003 units. In contrast, only three of the sixteen saliva-containing swabs (swabs produced from saliva diluted 1:5, 1:6, and 1:10, respectively) showed an activity below 0.2 units. Of these swabs, the 1:100 dilution showed the lowest activity (0.048). This value is still more than ten times that of the non-saliva containing swab with the highest activity. 相似文献
When courts are forced to consider issues surrounding birth and the sanctity of life, it is inevitable that divergence of judicial, academic and public opinion will result. However, the issue of whether parents can recover the expenses of rearing a healthy child has long vexed judges and commentators of law, ethics and medicine both in Australia and globally, with considerable disunity. A cogent example is the recent High Court of Australia decision in Cattanach v Melchior (2003) 215 CLR 1, where the court split four to three and handed down no less than six individual judgments. The case involved the birth of a healthy child following an unplanned pregnancy resulting from a failed surgical sterilisation. By allowing parents to recover the reasonable expenses of rearing an unintended child until the age of 18 years, the decision has provided some limited and temporary legal clarity to the issue of wrongful pregnancy in Australia. It is seen by some as a victory for the reproductive freedom of women and the rights of the child. However, with uncertainty remaining on the issue of wrongful life claims in Australia and with legislative changes in Queensland and New South Wales that partly reverse the High Court's decision, there remains doubt about the future of such claims in Australia. 相似文献