What can we learn from analyzing historical data on social security entitlements?

We use data from Social Security administrative records to examine the lifetime patterns of initial entitlement to retired-worker and Disability Insurance (DI) benefits across cohorts born in different years. Breaking out age-at-entitlement patterns for different birth-year cohorts reveals close adherence in entitlement ages to changes in program rules, such as increasing the full retirement age. The proportion of a cohort that becomes newly entitled to DI benefits rises noticeably during recessions and at ages 50 and 55, and cumulative entitlement rate patterns show that more recent cohorts rely increasingly on DI benefits in their late 30s and 40s.     

A comparative study on the concentrations of 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid (THCCOOH) in head and pubic hair

In this study, the concentrations of 11-nor-Δ(9)-tetrahydrocannabinol-9-carboxylic acid (THCCOOH) in pubic, axillary and beard hair were measured and the correlation between the concentrations of THCCOOH in head and pubic hair from same cannabis users were evaluated. The papers on body hair analysis for THCCOOH were rarely found although police officers submit body hair as a complimentary specimen to forensic laboratories in case cannabis users had no hair. Head, pubic, axillary, and beard hair were collected. All hair samples were cut into 0.5mm segments and decontaminated with methanol, digested with 1 mL of 1M NaOH at 85 °C for 30 min and extracted in 2 mL of n-hexane:ethyl acetate (9:1) two times after adding 1 mL of 0.1N sodium acetate buffer (pH = 4.5) and 200 μL of acetic acid followed by derivatization with 50 μL of PFPA and 25 μL of PFPOH for 30 min at 70 °C. The extracts were analyzed using gas chromatography tandem mass spectrometry operating in negative chemical ionization mode (GC/MS/MS-NCI). We determined the concentrations of THCCOOH in both pubic and head hair. The concentrations of THCCOOH in pubic hair were higher than those in head hair. We also evaluated the concentrations of THCCOOH in body hair (pubic, axillary and beard hair) and head hair according to the positive/negative urine test results. There was no statistically significant difference in the concentrations of THCCOOH in head and body hair according to urine results.     

Evaluation of postmortem redistribution phenomena for commonly encountered drugs

We described the findings of a study into the post-mortem redistribution (PMR) of 76 drugs found in 129 drug-related cases between 2006 and 2009. Seventy six drugs (psychotropic drugs (n=14), antidepressants (n=9), sedatives (n=6) and so on) were simultaneously quantified in cardiac and peripheral blood by gas chromatography-mass spectrometry (GC/MS) or liquid chromatography-tandem mass spectrometry (LC/MS/MS). The absence, possibility or presence of PMR of drugs was determined according to the ratios of cardiac to femoral blood concentrations (C/P ratios). Proxyphylline (C/P ratio: 0.85) showed no PMR; carbamazepine was not subject to PMR; a potential for PMR of lorazepam and mirtrazapine cannot be excluded; chlordiazepoxide is subject to PMR; acetaminophen and alprazolam exhibit minimal PMR; amitriptyline and benztropine exhibit PMR. Codeine (C/P ratio: 4.9), zolpidem (C/P ratio: 3.74), chlorpromazine (C/P ratio: 2.97), fluoxetine (C/P ratio: 2.83) and propranolol (C/P ratio: 2.72) had the largest C/P ratios. Postmortem drug concentrations showed variations depending on sampling sites and characteristics of the drugs. It is continuously necessary to analyze commonly used or abused drugs in simultaneously collected cardiac and peripheral blood to establish significant reference values for PMR. These findings can be used to reach a conclusion about the cause and manner of death.     

General strain and non-strain theories: A study of crime in emerging adulthood

Purpose

Despite continued increase in research on general strain theory (GST), previous studies on the relationship between GST and other criminological theories has been limited. To fill this gap in GST research, the present study aims to examine whether non-strain variables of social bonding theory, social learning theory, and self-control theory, as well as negative emotions mediate and moderate the effects of strain on crime and drug use.

Methods

Ordinary least squares regressions were applied to conduct a simultaneous analysis of mediation and moderation effects, using multiple waves of the restricted-use data from the National Longitudinal Study of Adolescent Health (Add Health).

Results

The non-strain variables of social bonds and low self-control, but not deviant peer association, as well as trait anger and state depression/anxiety mediate the effects of strain on crime and drug use, but hypotheses about the moderating effects of these variables receive less support.

Conclusions

The central claims of GST need to be expanded to include non-emotive mediators of the effects of strain on crime, given that negative emotions are not expected to fully mediate the criminogenic effects of strain.     

Understanding the School Outcomes of Juvenile Offenders: An Exploration of Neighborhood Influences and Motivational Resources

As a group, delinquent youth complete less education and show poor academic outcomes compared to their non–delinquent peers. To better understand pathways to school success, this study integrated individual- and neighborhood-level data to examine academic functioning among 833 White, Black, and Hispanic male juvenile offenders (age 14–17) living in two urban communities. A multilevel path analysis confirmed that youth in relatively more affluent communities report greater access to opportunities in the areas of education and employment, and that these opportunities are associated with higher expectations to succeed and better grades. Findings highlight the importance of taking an ecological approach for understanding processes that shape school effort and achievement. Implications are discussed in the context of promoting academic success among juvenile offenders, specifically, and for understanding pathways to healthy adjustment, more generally.     

Policy networks and multiple lobbying strategies in EU trade policy-making. A Korean perspective

The EU trade policy has been a crucial matter of concern not only for the EU member states but also for the rest of the world as a whole. However, only a limited number of policy actors have been able to exercise effective power in the EU trade policy process on the basis of the formal and informal relations formed among core policy actors in policy networks. As a result, the interests of the European industrialists have been best served in the EUs trade policy relations with non-member countries. Consequently, Korean firms, as outsiders of the policy networks, have recognized the need to develop effective lobbying strategies as significant means to have greater influence on EU trade policy-making, so as to overcome the disadvantages existing in the policy process. In this regard, Korean firms need to develop multiple lobbying strategies by taking advantage of the various routes of EU trade lobbying. Otherwise, Korean firms will continue to experience difficulties in exploiting the benefits of the large European common market with a single currency.     

A study on the effects of degradation and template concentration on the amplification efficiency of the STR Miniplex primer sets

In forensic DNA analysis, the samples recovered from the crime scene are often highly degraded leading to poor PCR amplification of the larger sized STR loci. To avoid this problem, we have developed STR markers with redesigned primer sequences called "Miniplexes" to produce smaller amplicons. To assess the effectiveness of these kits, we have tested these primer sets with enzymatically degraded DNA and compared the amplifications to a commercial kit. We also conducted sensitivity and peak balance studies of three Miniplex sets. Lastly, we report a case study on two human skeletal remain samples collected from different environmental conditions. In both types of degraded DNA, the Miniplex primer sets were capable of producing more complete profiles when compared to the larger sized amplicons from the commercial kit. Correct genotypes were obtained at template concentrations as low as 31 pg/25 microL. Overall, our data confirm that our redesigned primers can increase the probability of obtaining a usable profile in situations where standard kits fail.     

The ‘Invisible Institution’ and Black Youth Crime: The Church as an Agency of Local Social Control

We examine the degree to which an individual's religious involvement significantly mediates and buffers the effects of neighborhood disorder on youth crime. To test this hypothesis, we analyzed the fifth wave of data from the National Youth Survey, focusing on black respondents given the historical as well as contemporary significance of the African-American church for black Americans. Results from estimating a series of regression models indicated that (1) the effects of neighborhood disorder on crime among black youth are partly mediated by an individual's religious involvement (measured by the frequency of attending religious services) and (2) involvement of African-American youth in religious institutions significantly buffers or interacts with the effects of neighborhood disorder on crime and, in particular, serious crime. Theoretical and methodological implications of the present findings are briefly discussed.     

Allele frequencies of 15 STR loci using AmpF/STR Identifiler kit in a Korean population

The genetic variations for 15 short tandem repeat (STR) loci D8S1179, D21S11, D7S820, CSF1PO, D3S1358, TH01, D13S317, D16S539, D2S1338, D19S433, vWA, TPOX, D18S51, D5S818 and FGA were performed on 231 unrelated Korean population using commercially available AmpF/STR Identifiler kit.