The impact of social class and parental maltreatment on the cognitive functioning of children

The purpose of the present investigation was to compare the cognitive functioning of maltreated children with two groups of nonmaltreated children: those matched for age and SES and those matched only on age. All of the children ranged in age from 6 to 16 years. The rationale for employing two comparison groups was to examine the role of maltreatment and SES separately to determine which factor, if any, is associated with children's cognitive functioning. Additionally, the present investigation sought to expand on previous work by employing both global measures of cognitive functioning (WISC-R) as well as measures designed to tap specific abilities (e.g., selective attention, short-term memory). Results indicate that maltreated children demonstrated deficits in cognitive functioning but that these are no more pervasive than those found in children from the same low socioeconomic backgrounds. These findings suggest that it may be deprived family circumstances common in maltreating families, not maltreatment per se, that is responsible for the cognitive deficits often noted in maltreated children.     

Scrolling Around the New Organization: The Potential for Conflict in the On-Line Environment

The technological revolution has created as many challenges as opportunities for managers in today's organizations. Besides wandering around to manage, scrolling around on a computer screen has become common-place. This article reviews four key technology-caused challenges facing managers in the workplace, chiefly as the result of communication via e-mail. Specifically, the author focuses on what research to date informs us about negotiation and conflict resolution in an electronic environment.     

DNA Preservation in Skeletal Elements from the World Trade Center Disaster: Recommendations for Mass Fatality Management*,†

Abstract: The World Trade Center (WTC) victim identification effort highlights taphonomic influences on the degradation of DNA from victims of mass fatality incidents. This study uses a subset of the WTC‐Human Remains Database to evaluate differential preservation of DNA by skeletal element. Recovery location, sex, and victim type (civilian, firefighter, or plane passenger) do not appear to influence DNA preservation. Results indicate that more intact elements, as well as elements encased in soft tissue, produced slightly higher identification rates than more fragmented remains. DNA identification rates by element type conform to previous findings, with higher rates generally found in denser, weight‐bearing bones. However, smaller bones including patellae, metatarsals, and foot phalanges yielded rates comparable to both femora and tibiae. These elements can be easily sampled with a disposable scalpel, and thus reduce potential DNA contamination. These findings have implications for DNA sampling guidelines in future mass fatality incidents.     

The analysis of biological samples from crime scene for a future human DNA profile confrontation. Effects of presumptive test reagents on the ability to obtain STR profiles for human identification

Because of the increase of evidence of blood stains, that have been washed or cleaned in an attempt to mask the analysis of DNA profiles, there is also an increase in the use of presumptive tests on samples sent to laboratories. Some of the presumptive tests, used to identify blood and semen stains, could potentially affect the recovery of high molecular weight DNA from the samples, or extinguish them, especially those already present in small quantities. After the presumptive tests, often these samples are discarded. This study aimed to examine the possibility of obtaining a DNA profile from samples submitted for presumptive testing and cleaned with bleaches with and without chlorine. Two different protocols were conducted: (a) A unique sample of human blood in natura (5 μL), already typed through the DNA techniques with the genetic profile previously known (control), was distributed onto cotton fabrics and dried at room temperature. Four samples of fabric were macerated in saline solution and Coombs serum and then stored for three months (room temperature and freezer −20 °C). (b) Another sample of human blood, type A, in natura, already typed through the techniques of DNA (control) was used. Aliquots of 200 μL were distributed in: cotton, denim and synthetic fabric. The samples were dried at room temperature for 24 h. The blood stains in those fabrics (cotton, denim and synthetic) were then divided into three groups: unwashed, cleaned with chlorine bleach and cleaned with chlorine bleach and soap powder. The samples were again dried at room temperature for 24 h, before the use of luminol. The DNA were extracted with Chelex 100 and amplified with the Identifiler Kit (Applied Biosystems). The blood stains exposed to saline and Coombs serum had DNA profiles consistent with untreated samples (controls). This result shows that the experts should keep and store the samples treated with saline and Coombs serum for future DNA confrontation when necessary. Also discussed in this paper the pattern of blood stains after washing with bleaching solutions, as well as the quantity of DNA obtained from these samples.     

Drugs in injured drivers in Denmark

As part of the project Impaired Motorists, Methods of Roadside Testing and Assessment for Licensing (IMMORTAL) under the European Commission's Transport RTD Programme of the 5th Framework Programme [I.M. Bernhoft, Drugs in accidents involved drivers in Denmark, D-R4.3 of the project Impaired Motorists, Methods Of Roadside Testing and Assessment for Licensing (IMMORTAL), www.immortal.or.at, 2005], a study regarding drugs in accident-involved drivers was carried out in Denmark. The main objectives of this study were: (1) to collect and analyse samples from injured drivers for the presence of drugs; (2) to give an indication whether drugs may have contributed to traffic accidents; and (3) to get information on the drug-positive drivers and their drug use. This paper focuses on objective 1. Injured drivers who were treated in hospital were asked to give a saliva sample, a blood sample or both. The samples were screened for the following substances: opiates, amphetamines, methamphetamines, incl. MDMA (ecstasy), cannabinoids and metabolites, cocaine and metabolites and benzodiazepines. Screenings were carried out by means of Cozart Microplate EIA kit. Positive screenings were confirmation analysed by gas chromatography–mass spectrometry (GC–MS) or liquid chromatography/tandem mass spectrometry (LC/MS/MS). In total, 26 out of 330 patients were confirmed positive for one or more of the six drug groups. However, three patients were excluded from the survey for various reasons. Of the remaining 23 drug-positive patients 15 were found positive for one drug group, and in five of these cases alcohol was present in a concentration over the legal limit in Denmark (0.05%). The other eight patients were found positive for two drug groups, and in four of these cases, alcohol was also present in a concentration over the legal limit. Alcohol was found both in combinations with medicinal drugs, with illegal drugs and with both. Based on the saliva or blood concentrations, we estimate that there is a strong suspicion of impairment in 9 out of 23 cases, and in another six cases it was likely that the drivers were impaired.     

An application of Gough's conceptual model to a measure of adolescent self-esteem

The concept of self-esteem is central in psychology, but few well-validated measures exist. This paper presents some preliminary data on the Self-Esteem Questionnaire (SEQ) organized along Gough's conceptual model of primary, secondary, and tertiary evaluation. The SEQ appears to discriminate groups along a self-esteem continuum; fits in well with a variety of theoretical approaches; does not have nuisance loadings on sex, intelligence, or social status; is unduly affected by social desirability; and correlates well with standard measures of self-esteem.Received his Ph.D. in Clinical Psychology from the University of California, Berkeley. Research interests include psychological testing and creativity.Received her B.A. from the University of Arizona. Research interests include child abuse and statistical methodology.