A Pilot Assessment of a School‐Based Youth Court in a Resource‐Poor African‐American Urban School District: Lessons Learned From Youth Court Volunteers

This study assesses the benefits of youth court participation for volunteers (N = 14) serving as jurors in an urban school‐based youth court. Focus group and questionnaire data indicate that volunteers are capable of providing more effective sanctioning decisions than adults. Volunteers reported developing citizenship skills including learning about the law and decision‐making skills. The youth court leaders developed self‐confidence and maturity while learning the conflict resolution skills necessary for rendering dispositions and conducting trials. We interpret our findings within the context of the youth court literature, the issue of the school‐to‐prison pipeline, and Elijah Anderson's analysis of the Code of the Street.     

Restoring community through traditional neighborhood design: A case study of Diggs town public housing

Abstract

This article examines how traditional neighborhood design (TND) can restore a sense of community to distressed neighborhoods. Traditional neighborhoods, such as those found in many cities and inner suburbs, provide their residents numerous opportunities and venues for social interaction. We apply the principles of TND to the redesign of a public housing project. We call our approach an “architecture of engagement.”

Using a case study of Diggs Town, a public housing project in Norfolk, VA, we explore how the application of TND principles transformed a socially alienated and distressed neighborhood into a socially integrated and functional one. We find that TND techniques improve the quality of life by facilitating the social exchanges that create social capital.     

Differentiation of blue ballpoint pen inks by laser desorption ionization mass spectrometry and high-performance thin-layer chromatography

The differentiation of inks on a questioned document can highlight a fraudulent insertion and is usually carried out by optical comparison and thin-layer chromatography (TLC). Laser desorption ionization mass spectrometry (LDI-MS) may also be used for the analysis of dyes from ink. This analytical technique was compared with a standard method of high-performance TLC (HPTLC) according to their capacity to differentiate blue ballpoint inks. Ink entries on paper from 31 blue ballpoint pens have been analyzed and their dye ink formulations compared. The pens were classified into 26 classes by LDI-MS against 18 for HPTLC. LDI-MS proved to be a more powerful method for differentiating ink formulations because it provides information about dye structures (molecular weights) and relative quantification of dye classes (peak areas). Sample preparation was minimal and analysis time was short in contrast to the more complex extraction, application, and development steps of the HPTLC method. However, only basic dyes and pigments were identified using positive mode LDI-MS, while HPTLC did yield additional information about acid dyes.     

Can the direct cardiac effects of the electric pulses generated by the TASER X26 cause immediate or delayed sudden cardiac arrest in normal adults?

There is only a small amount of experimental data about whether the TASER X26, a nonlethal weapon that delivers a series of brief electrical pulses to cause involuntary muscular contraction to temporarily incapacitate an individual, can initiate ventricular fibrillation to cause sudden cardiac arrest either immediately or sometime after its use. Therefore, this paper uses the fundamental law of electrostimulation and experimental data from the literature to estimate the likelihood of such events. Because of the short duration of the TASER pulses, the large duration of the cardiac cell membrane time constant, the small fraction of current from electrodes on the body surface that passes through the heart, and the resultant high pacing threshold from the body surface, the fundamental law of electrostimulation predicts that the TASER pulses will not stimulate an ectopic beat in the large majority of normal adults. Since the immediate initiation of ventricular fibrillation in a normal heart requires a very premature stimulated ectopic beat and the threshold for such premature beats is higher than less premature beats, it is unlikely that TASER pulses can immediately initiate ventricular fibrillation in such individuals through the direct effect of the electric field generated through the heart by the TASER. In the absence of preexisting heart disease, the delayed development of ventricular fibrillation requires the electrical stimuli to cause electroporation or myocardial necrosis. However, the electrical thresholds for electroporation and necrosis are many times higher than that required to stimulate an ectopic beat. Therefore, it is highly unlikely that the TASER X26 can cause ventricular fibrillation minutes to hours after its use through direct cardiac effects of the electric field generated by the TASER.