Site, type, and local mechanism of tibial shaft fracture in drivers in frontal automobile crashes

The location, type, and local mechanism of tibial shaft fracture were determined for 66 drivers injured in frontal automobile crashes. The results from the analyses showed that the distal third is the most common fracture location (p<0.05) and that bending is responsible for the majority of these fractures regardless of the fracture site. These findings indicate that the current injury criterion for predicting the occurrence of tibial shaft fracture in crash tests with anthropometric test devices is appropriate in terms of accounting for the primary mechanism of fracture but that increased protective effectiveness could be achieved by redefining the criterion for the distal third shaft section instead of the currently specified mid-shaft section of the tibia.     

Developmental Trajectories of Science Identity Beliefs: Within-Group Differences among Black,Latinx, Asian,and White Students

Journal of Youth and Adolescence - Though adolescents’ science identity beliefs predict positive STEM outcomes, researchers have yet to examine developmental differences within racial/ethnic...     

New Battles and Battlegrounds for Mandatory Arbitration After Epic Systems,New Prime,and Lamps Plus

The Supreme Court's recent decisions interpreting the Federal Arbitration Act (FAA) in the employment context generally prioritize arbitration over workers’ labor law rights. The majority in Epic Systems Corporation v. Lewis upheld mandatory individual employment arbitration agreements despite their conflict with the labor law right to act in concert. The same majority in Lamps Plus, Inc. v. Varela rejected a state law interpretation of a contract provision to find that parties to an employment contract intend individual arbitration absent reference to group arbitration. A unanimous Court in New Prime v. Oliveira interpreted the FAA to include independent contractors under the transportation worker exemption, reinvigorating the battle over what it means to be engaged in interstate commerce to qualify for the exemption. These decisions resolved some disputes about the breadth of the FAA, but other questions remain. In the wake of Epic Systems and Lamps Plus, state courts and legislatures are testing the boundaries of the FAA's saving clause, with limited success. Confidentiality provisions, frequently associated with arbitration agreements, may unlawfully interfere with employees’ federal labor law rights. This article recommends that Congress amend the FAA to address these issues by excluding all workers engaged in interstate commerce, not just transportation workers, because the Court has strayed far from the original intent of the Act—to enforce commercial agreements in which the parties had equal bargaining power. State legislation also should provide guidance on what makes arbitration voluntary and fair, and provide a choice to employees on collective action, forum, and confidentiality.     

Disaggregating Mass Public Shootings: A Comparative Analysis of Disgruntled Employee,School, Ideologically motivated,and Rampage Shooters

This study compares the demographic, background, motivation, and pre‐event and event‐level behaviors across four types of mass public shooters: disgruntled employee, school, ideologically motivated, and rampage offenders. Using a database containing detailed information on 318 mass public shootings that occurred in the United States between 1966 and 2017, we find systematic differences in the characteristics, motivations, target selection, planning, and incident‐level behaviors among these offenders. The results show that ideologically motivated shooters to be the most patient, and methodical, and as a result the most lethal. Conversely, disgruntled employees, who are driven by revenge, tend to have little time to plan and consequently are the least lethal shooters. These, among other differences, underscore the need for prevention strategies and policies to be tailored to specific types of offenders. Furthermore, the results also highlight commonalities across offender type, suggesting that the social and psychological pathways to violence are universal across offenders.     

Courtroom Context and Sentencing

This study provides an evaluation of the major policy shift in sentencing practices over the past half-century – namely the shift from indeterminate to determinant sentencing policies and the use of sentencing guidelines. The theoretical literature on courtroom organization and focal concerns informs this evaluation of determinate sentencing practices in Florida. Drawing from prior theoretical and empirical research, hierarchical linear and generalized linear models are estimated to assess courtroom effects on individual level sentencing outcomes. The findings document that location matters when sentenced in Florida. Specifically, the likelihood of being sentenced to prison and the length of sentence varies across counties, even after controlling for individual case and offender characteristics and a variety of contextual characteristics. Additionally, the influence of legal and extra-legal factors on prison in/out and sentence length decisions varies significantly across counties. Several court characteristics, including court size, caseload pressure and trial rate assert direct influence on a county’s likelihood of prison in/out and mean sentence length decisions.

     

Identification of a female murder victim found in Burgenland,Austria in 1993

In 1993, the skeletal remains of a female corpse were found in Burgenland, Austria. Initial identification of the approximately 25–35-year-old female appeared impossible, but the case was reopened 23 years later. By applying biogeochemical isotope methods to her body tissues, the geographical origin of the unknown corpse could be predicted. The results of the C, N, S, H, Sr, and Pb isotope analyses suggested that the female did not originate from Europe and most likely spent her youth in the northern Caribbean. Using these findings, the police were able to identify the woman within 2 weeks. The female came from the Dominican Republic and resided in Austria for only a short period before she was murdered. This case shows that isotope biogeochemistry investigations can provide the police with crucial information that enables unknown persons to be identified.

Keypoints

• C-N-S-H and Sr-Pb isotope analyses were applied to human remains associated with a cold case.
• It was possible to determine the region of origin of the unknown deceased individual as the northern Caribbean.
• After 23 years, the murder victim was successfully identified.

     

Setting an Example

Even before the third decade of the 21st century began,China had already broken several world records.It had ended extreme poverty and landed a module on the far side of Moon.On December 4,2020,China successfully commissioned its new-generation nuclear fusion research device,a crucial breakthrough in taming nuclear energy that could meet all our energy needs for centuries to come.     

TR versus PR: Effects of the French double ballot

This paper presents a natural experiment, comparing the effects of two-round (TR) and proportional representation (PR) voting rules in French cantonal and regional elections. A series of rigorous model estimations demonstrates that the two electoral types clearly produce distinct outcomes. TR systems bring about less extremist party voting, less party competition, and perhaps less vote turnout, when compared to PR systems. These findings call into question the lack of attention to TR effects, and the notion that TR is not really a distinct electoral form.