Allele frequencies for 15 autosomal STR loci and admixture estimates in Puerto Rican Americans

Allelic frequencies of 15 short tandem repeats (STR) markers (CSF1PO, FGA, THO1, TPOX, VWA, D3S11358, D5S818, D7S820, D8S1179, D13S317, D16S539, D18S51, D21S11, D19S433 and D2S1338) were determined using the AmpFl STR Identifiler PCR Amplification Kit in Puerto Rican American individuals (N=205) from Massachusetts. The FGA, D18S51 and D2S1338 loci had a high power of discrimination (PD) with values of 0.967, 0.965 and 0.961, respectively. Significant deviations from the Hardy-Weinberg (HW) equilibrium were not detected. An important genetic contribution of Caucasian European (76.4%) was detected in Puerto Rican Americans. However, comparative analysis between Puerto Rican American and other neighboring populations from United States mainly with African and Caucasian Americans, revealed significant differences in the distribution of STR markers. Our results are important for future comparative genetic studies of different American ethnic groups, in particular a cultural group called Hispanic-Americans and should be helpful for forensic and paternity testing.     

Assessing the Electoral Connection: Evidence from the Early United States

Students of legislative behavior are divided over the extent to which an electoral connection existed in the early United States. In this article, we offer a test of the electoral connection in early American politics by investigating the electoral aftershocks of the disputed presidential election of 1824. Using newly available county-level presidential voting data, along with the unique circumstances associated with the presidential contest, we examine the connection between representative behavior, district public opinion, and electoral outcomes. We find that representatives who voted for John Quincy Adams in the House contest, yet were from districts supporting Andrew Jackson, were targeted for ouster and suffered a substantial vote-loss in the subsequent midterm election. We also find that the entry of a quality challenger had a sizeable impact on the fortunes of incumbent legislators. These results serve to confirm that representatives could be held accountable for their behavior in office during the antebellum era .     

Testing Application of Geographical Information Systems,Forensic Geomorphology and Electrical Resistivity Tomography to Investigate Clandestine Grave Sites in Colombia,South America

Colombian forensic investigators required assistance locating clandestine burials of missing persons related to human right atrocities from 14 years ago. Geoscientific search methods were trialled, including a predictive spatial statistical model, using various input and database information, to select the most likely grave locations in difficult mountainous terrain. Groundwork using forensic geomorphology, near-surface geophysics (ERT) and subsequent probing identified suspect burial positions. One site was in mountainous terrain and the other in former school grounds, both difficult to access and in poor weather conditions. In the mountainous area, a negative resistivity anomaly area was identified and intrusively investigated, found to be a buried rock. In school grounds, after MESP and intelligence were used to identify a burial site, surface depressions were identified, and ERT datasets collected over the highest priority depression; intrusive investigations discovered a hand-dug pit containing animal bones. This approach is suggested for Latin American searches.     

Strengths,Limitations, and Recommendations for Instrumental Color Measurement in Forensic Soil Characterization

Color determination of soil evidence is often done by visual comparison to soil color charts. A handheld spectrophotometer was tested with representative materials for its suitability for forensic soil characterization. Instrumental colorimetry provides accurate colorimetry with ~10-fold better precision than a soil color chart. The minimum sample size for accurate color determination was between 0.02 and 0.04 mg of fine soil for the specific instrument tested. Reporting colors in the L*a*b* space permits quantification of ΔE₀₀, a measure of perceptible color difference, could enable objective quantification of small color differences and thresholds for forensic soil comparisons. A ΔE₀₀ greater than ~ 3.5 to 6 likely indicates disparate soil sources in a forensic comparison, in the absence of confounding factors like sample alteration. Despite the superior precision of instrumental colorimetry, this approach is inappropriate for samples which are mottled at an inseparable scale, attached to a substrate, or too small for instrumental measurement.     

Risky Interactions: Relational and Developmental Moderators of Substance Use and Dating Aggression

Physical dating aggression is a prevalent and costly public health concern. A theoretical moderator model of substance use and dating aggression posits that associations between them are moderated by relational risk factors. To test these theoretical expectations, the current study examined seven waves of longitudinal data on a community-based sample of 100 male and 100 female participants in a Western U.S. city (M age Wave 1?=?15.83; 69.5% White non-Hispanic, 12.5% Hispanic, 11.5% African Americans, & 12.5% Hispanics). Multilevel models examined how links between substance use and dating aggression varied by relational risk and how these patterns changed developmentally. Main effects of relational risk and substance use emerged, particularly in adolescence. In young adulthood significant three-way interactions emerged such that substance use was more strongly associated with physical aggression when conflict and jealousy were higher. Thus, relational risk factors are integral to models of dating aggression, but their role changes developmentally.

     

Older Siblings as Academic Socialization Agents for Younger Siblings: Developmental Pathways across Adolescence

The role of older siblings in younger siblings’ academic socialization becomes increasingly salient during adolescence. This longitudinal study examines the developmental mechanisms through which older siblings shape younger siblings’ academic outcomes and whether older siblings’ peer affiliations predict younger siblings’ educational aspirations and attainment. Data consisted of responses from 395 target adolescents (M_age?=?12.22 years, 48.9% female; 51.6% African American, 38.5% European American) and their older siblings (M_age?=?14.65 years, 50.1% female) across nine years. The findings showed that older siblings’ affiliation with academically disengaged peers at 7th grade predicted younger siblings’ decreased affiliation with academically engaged peers and increased affiliation with disengaged peers at 9th grade. In addition, younger siblings’ affiliation with academically engaged peers predicted greater educational aspirations at 11th grade, which in turn were related to higher postsecondary educational attainment. The identification of developmental processes through which older siblings were associated with younger siblings’ academic success may aid in creating supportive social environments in which adolescents can thrive.

     

The Utility of Forms and Functions of Aggression in Emerging Adulthood: Association with Personality Disorder Symptomatology

A sample of 679 (341 women) emerging adults (M = 18.90 years; SD = 1.11; range = 18.00–22.92) participated in a study on the utility of forms (i.e., physical and relational) and functions (i.e., proactive and reactive) of aggression. We examined the link between these four subtypes of aggression and personality pathology (i.e., psychopathic features, borderline personality disorder features, and antisocial personality disorder features). The study supports the psychometric properties (i.e., test–retest reliability, internal consistency, discriminant validity) of a recently introduced measure of forms and functions of aggression during emerging adulthood. Aggression subtypes were uniquely associated with indices of personality pathology. For example, proactive (i.e., planned, instrumental or goal-oriented) and reactive (i.e., impulsive, hostile or retaliatory) functions of relational aggression were uniquely associated with borderline personality disorder features even after controlling for functions of physical aggression and gender. The results highlight the differential associations between forms and functions of aggression and indices of personality pathology in typically developing emerging adults.

Liberal Versus Conservative Stinks

In a recent Public Opinion Quarterly article “Is the Academy a Liberal Hegemony?,” John Zipp and Rudy Fenwick pit themselves against “right-wing activists and scholars,” citing our scholarship (Klein and Stern in Academic Questions 18(1): 40–52, 2005a; Klein and Western in Academic Questions 18(1): 53–65, 2005). Here, we analyze Zipp and Fenwick’s characterization of our research and find it faulty. We, then, turn to their self-identification “liberal vs. conservative” findings and show they concord with our analysis. If one feels that it is a problem that humanities and social science faculty at 4-year colleges and universities are vastly predominantly democratic voters, mostly with views that may called establishment-left, progressive, or status-quo oriented, then such concerns should not be allayed by Zipp and Fenwick’s article. We commence the article with a criticism of the “liberal versus conservative” framework because it is the source of much of the confusion surrounding controversies such as the one over the ideological profile of faculty.