Attachment Disruptions,IQ, and PTSD in African American Adolescents: A Traumatology Perspective

Attachment disruptions, other traumas, posttraumatic stress disorder (PTSD), and intelligence quotient (IQ) were measured in a sample of 181 African American adolescents. Path analysis was utilized to test the effects of different types of attachment disruptions on IQ and PTSD. Findings supported that mother and father abandonments and being in foster care are associated with decreased perceptual reasoning, processing speed, and working memory, and increased discrepancy between perceptual and verbal toward decreased perceptual reasoning. Such suppression and discrepancy contribute to poor academic achievement. Results validated the traumatology perspective on attachment disruptions as traumas that are associated with PTSD, suppression of most IQ potentials, and with potential brain hemispheric desynchronization. The ramifications of these results for helping African American adolescents are discussed.     

Chemistry (intrinsic) and inclusion (extrinsic) effects on the toughness and Weibull modulus of Fe-based bulk metallic glasses

Systematic changes in composition were employed to increase the notch toughness of a variety of Fe-based Bulk Metallic Glasses (BMGs). The Fe₅₀Mn₁₀Mo₁₄Cr₄C₁₆B₆ BMG possessed very high hardness (e.g. 12 GPa) but very low notch toughness (e.g. 5.7 MPa m^1/2) at room temperature, consistent with fracture surface observations of brittle features. Many of the other Fe-BMG variants, created to change the Poisson's ratio via systematic changes in alloy chemistry, exhibited higher toughness but more scatter in the data, reflected in a lower Weibull modulus. SEM examination revealed fracture initiation always occurred at inclusions in samples exhibiting lower toughness and/or Weibull modulus for a given chemistry. Implications of these observations on reliability of BMGs are discussed.     

The Symbol Digit Modalities Test: a screening instrument for brain-damaged children

28 brain-damaged males ranging in age from 8 to 16 yr. were compared with 28 nondamaged matching controls on their Symbol Digit Modalities Test performance. The damaged group performed significantly more poorly, and 75% of the subjects scored more than .5 z score below their matched controls. The results suggest that this brief and objective test can be used to screen brain-damaged children when their performance is compared to that of a control group or the normative group.     

Feminism: Definitions,support, and correlates of support among female and male college students

The purpose of our research was to examine definitions of feminism, support for feminism, and gender attitude and personality trait correlates of support. Using a sample of predominately White college students, findings indicated quite favorable definitions of feminism, and more support than opposition to it, especially among female respondents. Support for feminism was related to 5 of 6 gender attitude dimensions for females, but unrelated to their gender personality traits. For males, support was related to only one gender attitude dimension, and to femininity; more feminine males were more supportive. Implications for the distinction between feminism and feminist and for the status of feminism among college students are discussed.     

Hungry for love: the influence of self-regulation on infidelity

The current research examines the effect of self-regulation on the likelihood of committing infidelity. Thirty-two college students in exclusive romantic relationships interacted through a private chat room with an opposite-sex confederate. Prior to this interaction, a food-restriction task depleted half the participants of self-control. As predicted, depleted levels of self-regulation increased the likelihood of infidelity. Specifically, depleted participants were more likely to both accept a coffee date from and supply a personal telephone number to the confederate than non-depleted participants. Weakened self-control may be one potential cause for the levels of infidelity occurring in romantic partnerships today.     

Grain orientation effects on delamination during fatigue of a sensitized Al–Mg alloy

Fatigue crack growth experiments were conducted in humid air (RH~45%) at 25 °C on 29-mm-thick plate samples of an aluminium–magnesium (Al–Mg) 5083-H131 alloy in the long transverse (LT) direction. Samples were tested in both the as-received condition and after sensitization at 175 °C for 100 h. Delamination along some grain boundaries was observed in the short transverse plane after fatigue testing of the sensitized material, depending upon the level of ΔK and K_max. Orientation microscopy using electron backscattering diffraction and chemical analyses using transmission electron microscopy and energy dispersive spectroscopy of grain boundaries revealed that Mg segregation and the orientation of grains had key roles in the observed grain boundary delamination of the sensitized material.     

Predictors of Positive Outcomes in Offspring of Depressed Parents and Non-depressed Parents Across 20 Years

Understanding differences in factors leading to positive outcomes in high-risk and low-risk offspring has important implications for preventive interventions. We identified variables predicting positive outcomes in a cohort of 235 offspring from 76 families in which one, both, or neither parent had major depressive disorder. Positive outcomes were termed resilient in offspring of depressed parents, and competent in offspring of non-depressed parents, and defined by two separate criteria: absence of psychiatric diagnosis and consistently high functioning at 2, 10, and 20 years follow-up. In offspring of depressed parents, easier temperament and higher self-esteem were associated with greater odds of resilient outcome defined by absence of diagnosis. Lower maternal overprotection, greater offspring self-esteem, and higher IQ were associated with greater odds of resilient outcome defined by consistently high functioning. Multivariate analysis indicated that resilient outcome defined by absence of diagnosis was best predicted by offspring self-esteem; resilient outcome defined by functioning was best predicted by maternal overprotection and self-esteem. Among offspring of non-depressed parents, greater family cohesion, easier temperament and higher self-esteem were associated with greater odds of offspring competent outcome defined by absence of diagnosis. Higher maternal affection and greater offspring self-esteem were associated with greater odds of competent outcome, defined by consistently high functioning. Multivariate analysis for each criterion indicated that competent outcome was best predicted by offspring self-esteem. As the most robust predictor of positive outcomes in offspring of depressed and non-depressed parents, self-esteem is an important target for youth preventive interventions.     

Broadening Horizons: Self‐Expansion in Relational and Non‐Relational Contexts

The self‐expansion model posits that individuals are motivated to broaden their sense of self by acquiring new identities, developing new perspectives, enhancing capabilities, and gaining resources. The self‐expansion motivation is driven by individuals' desire to increase their potential self‐efficacy and ability to accomplish goals. In this article, we discuss two main ways individuals self‐expand – by forming relationships and including the other in the self and through engaging in novel activities that are challenging and/or interesting either on one's own or with a relationship partner. We provide an overview of recent research detailing the numerous interpersonal and intrapersonal benefits and implications of self‐expansion. Additionally, we differentiate self‐expansion from a series of potentially associated constructs.