Impelling and inhibitory forces in aggression: sex-of-target and relationship effects

The finding of symmetry in intimate partner aggression is now generally accepted, but the convergence of male and female rates in these relationships remains unexplained. From qualitative analysis of male and female focus group discussions, we identified factors believed to influence the expression of aggression toward targets differing in sex and degree of intimacy. These factors were then used to construct a questionnaire in which 355 respondents indicated the applicability of the items to conflicts with a partner, a same-sex friend, and an opposite-sex friend. Principal component analysis revealed a clear two-factor structure of impelling forces (tending to provoke or initiate aggression) and inhibitory forces (tending to suppress or diminish the likelihood of aggression). Participants' scores on scales derived from these two factors were used in the subsequent analyses. Men reported lower inhibition and greater impulsion toward same-sex friends than to female friends and partners, who did not differ significantly from one another. Women showed lower inhibition to male targets, regardless of relationship, than to a female target. However, women rated their male partners as significantly higher on impelling forces than their male friends, who in turn were rated significantly higher than female friends. The results are broadly consistent with a sex-of-target effect corresponding to a chivalry norm held by both sexes that inhibits the expression of aggression toward women. The reasons why women are especially impelled to aggression by intimate partners are explored. Disaggregating the dynamics of interpersonal conflict into impelling and inhibitory components may prove useful in understanding and treating dispute escalation and resolution.     

Sensitivity of TATP to a TASER Electrical Output

A series of experiments were performed to evaluate and document the effect of a TASER (“stun gun”) on triacetone triperoxide (TATP), an easily manufactured explosive used often in IEDs and suicide bombing vests. TATP samples were synthesized and subjected to several tests of their sensitivity. These samples were run through a BAM Friction test with a result of <0.5 N, Impact Test with a result of 5.8 ± 0.4 cm, and Electrostatic Discharge test with a result of 0.073 ± 0.018 J. In addition, TATP was shocked with a TASER in a variety of configurations. The TATP reacted in 17/17 tests when the TASER arced through the TATP and 0/4 times when the TATP was configured in such a way that the TATP was not subjected to the electrical arc. Based on the experimental data, TATP will readily explode in a variety of configurations by a TASER or similar device. Testing should be expanded, as the data presented here are limited to a single formulation of TATP. Just one of a large array of TASER‐like devices by a single manufacturer were tested; other devices, scenarios and formulations of TATP and other likely threat materials should be assessed.     

Do different types of incubators produce different types of innovations?

Incubators are heterogeneous but there is a lack of understanding of the variety of innovation involved. We use four archetypes of incubator discussed in the literature (basic research, university, economic development and private incubator) and analyze their generation of different types of innovation (product, technological process and organizational innovation) during a 4 years period (2005–2008). In a sample of 80 incubators, we find that incubatees in some types of incubators are more prone to generate product and technological process innovations than those hosted in other types.     

Labeling and differential association: Towards a general social learning theory of crime and deviance

This study contends that components from two theories-labeling and differential association-should be incorporated into a general social learning perspective of crime and deviance. Data from waves one, two, and three of the National Youth Survey (n=1725) are used to test the proposed model. Results indicate that labeling effects are mediated by associations with delinquent peers when looking at a 24-item delinquency index. Theoretical implications and directions for future research are discussed.     

Physician-management relationships at HCA: a case study

The questions of whether Hospital Corporation of America (HCA), a for-profit hospital company, fostered an environment detrimental to the physician-patient relationship during the period of implementation of the Medicare Prospective Payment System (PPS) was explored. The transition to PPS provided an opportunity to evaluate whether hospital ownership differences affected responses to a payment system which encouraged institutional intervention in the practice of medicine. A case study approach was used to observe the influence of the then largest for-profit hospital corporation upon physicians' medical practice in four owned hospitals. Findings indicated that HCA hospital managers were most directly influenced by the local competitive environment and their own personal agendas in responding to PPS incentives. Corporate influence actually softened payment system incentives to intervene in medical practice by providing a generous supply of capital, and by fostering a corporate culture conducive to cooperative relationships with physicians. Better public understanding of the determinants of hospital behavior is needed to preserve or enhance important social goals such as the physician-patient relationship; easily measurable characteristics such as ownership or bed size explain little about hospital behavior or motivation.