The predictable instability of psychological distress in college students: A comment on Flett, Vredenburg, and Krames

Flett, Vredenburg, and Krames (1995) claim that their data support the view that the apparent instability in distress among college students is artifactual. However, they have merely demonstrated that distress among college students is an unstable phenomena. Their argument that changes in distress scores have statistical rather than substantive explanations erroneously assumes that instability in distress scores is equivalent to error of measurement.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/44791/1/10862_2005_Article_BF02229116.pd

Comparison of flow characteristics and vascular reactivity of radial artery and long saphenous vein grafts [NCT00139399]

BACKGROUND: The morphological and functional differences between arteries and veins may have implications on coronary artery bypass graft (CABG) survival. Although subjective differences have been observed between radial artery (RA) and long saphenous venous (LSV) grafts, these have not been quantified. This study assessed and compared the flow characteristics and in-vivo graft flow responses of RA and LSV aorto-coronary grafts. METHODS: Angiograms from 52 males taken 3.7 ± 1.0 months after CABG surgery were analyzed using adjusted Thrombolysis in Myocardial Infarction (TIMI) frame count. Graft and target coronary artery dimensions were measured using quantitative coronary angiography. Estimated TIMI velocity (V(E)) and volume flow (F(E)) were then calculated. A further 7 patients underwent in-vivo graft flow responses assessments to adenosine, acetylcholine and isosorbide dinitrate (ISDN) using intravascular Doppler. RESULTS: The V(E )for RA grafts was significantly greater than LSV grafts (P = 0.002), however there was no difference in volume F(E )(P = 0.20). RA grafts showed positive endothelium-dependent and -independent vasodilatation, and LSV grafts showed no statistically significant response to adenosine and acetylcholine. There was no difference in flow velocity or volume responses. Seven RA grafts (11%) had compromised patency (4 (6%) ≥ 50% stenosis in the proximal/distal anastomoses, and 3 (5%) diffuse narrowing). Thirty-seven (95%) LSV grafts achieved perfect patency and 2 (5%) were occluded. CONCLUSION: The flow characteristics and flow responses of the RA graft suggest that it is a more physiological conduit than the LSV graft. The clinical relevance of the balance between imperfect patency versus the more physiological vascular function in the RA graft may be revealed by the 5-year angiographic follow-up of this trial

A planet within the debris disk around the pre-main-sequence star AU Microscopii

AU Microscopii (AU Mic) is the second closest pre main sequence star, at a distance of 9.79 parsecs and with an age of 22 million years. AU Mic possesses a relatively rare and spatially resolved3 edge-on debris disk extending from about 35 to 210 astronomical units from the star, and with clumps exhibiting non-Keplerian motion. Detection of newly formed planets around such a star is challenged by the presence of spots, plage, flares and other manifestations of magnetic activity on the star. Here we report observations of a planet transiting AU Mic. The transiting planet, AU Mic b, has an orbital period of 8.46 days, an orbital distance of 0.07 astronomical units, a radius of 0.4 Jupiter radii, and a mass of less than 0.18 Jupiter masses at 3 sigma confidence. Our observations of a planet co-existing with a debris disk offer the opportunity to test the predictions of current models of planet formation and evolution.Comment: Nature, published June 24th [author spelling name fix

Bisexual-specific minority stress in nonsuicidal self-injury: The mediating role of perceived burdensomeness

Background: Bisexual-identifying individuals are at heightened risk for engaging in non-suicidal self-injury (NSSI), with the odds up to six times higher compared to heterosexual individuals and up to four times higher compared to lesbian/gay (L/G) individuals. While research has established that sexual minorities may be at increased risk because minority stressors exacerbate psychological processes associated with NSSI, little research has examined bisexual-specific pathways of risk. In this study, we replicated findings that suggest Interpersonal Theory of Suicide (IPTS) variables (i.e., perceived burdensomeness and thwarted belongingness) mediate the association between minority stress and NSSI and extended these findings by examining whether such mediation is moderated by sexual minority identity. Furthermore, we explored whether IPTS variables mediate the association between bisexual-specific minority stress and NSSI. Method: A sample of 259 cisgender L/G (n = 93) and bisexual (n = 166) MTurk workers completed measures assessing minority stress, NSSI, and IPTS variables. Results: Mediation analyses replicated findings that experiences of minority stress increase NSSI by increasing perceived burdensomeness [PB], though moderated mediation analyzes failed to provide evidence that sexual minority identity moderated this indirect effect. Rather, minority stress from both heterosexual and L/G individuals increased NSSI through increased PB for bisexual individuals. Limitations: The use of cross-sectional data does not allow conclusions of causal relationships. Conclusions: These results suggest that for bisexual individuals, minority stress from both heterosexual and L/G individuals increases NSSI by increasing PB. Future researchers and clinicians should consider the additive burden of minority stress in bisexual individuals

Self-Mutilation and Coping Strategies in a College Sample

The goal of this study was to examine the use of specific coping strategies among self-mutilating college students. The self-mutilating group (n = 44) reported utilizing avoidance strategies more often than did a control group (n = 44) matched for general psychological distress but with no history of self-mutilation. In addition, female, but not male, self-mutilators endorsed using problem-solving and social support seeking strategies less often than nonmutilators. These findings suggest that coping strategies in general and avoidance-based strategies in particular may be important targets for the treatment of self-mutilative behaviors

An examination of non-suicidal self-injury in men: Do men differ from women in basic NSSI characteristics?

Researchers have reported similar prevalence rates for non-suicidal self-injury (NSSI) among men and women, yet few studies have investigated gender differences in NSSI. This study describes and compares basic NSSI characteristics among a nonclinical sample by gender. Forty-eight individuals reporting a history of NSSI were interviewed (M=18.52 Years old, SD=1.18 years). NSSI characteristics, including frequency, age of onset, method of NSSI, Pain and control during NSSI, and degree of medical injury were compared between men (n=19) and women (n=29). Men and women differed significantly on age of onset, degree of medical injury, and NSSI methods. This study supports previous findings of gender differences in NSSI and suggests that further investigation of gender differences in NSSI is warranted

An examination of non-suicidal self-injury in men: Do men differ from women in basic NSSI characteristics?

Researchers have reported similar prevalence rates for non-suicidal self-injury (NSSI) among men and women, yet few studies have investigated gender differences in NSSI. This study describes and compares basic NSSI characteristics among a nonclinical sample by gender. Forty-eight individuals reporting a history of NSSI were interviewed (M= 18.52 years old, SD = 1.18 years). NSSI characteristics, including frequency, age of onset, method of NSSI, pain and control during NSSI, and degree of medical injury were compared between men (n=19) and women (n=29). Men and women differed significantly on age of onset, degree of medical injury, and NSSI methods. This study supports previous findings of gender differences in NSSI and suggests that further investigation of gender differences in NSSI is warranted

An examination of non-suicidal self-injury in men: Do men differ from women in basic NSSI characteristics?

Researchers have reported similar prevalence rates for non-suicidal self-injury (NSSI) among men and women, yet few studies have investigated gender differences in NSSI. This study describes and compares basic NSSI characteristics among a nonclinical sample by gender. Forty-eight individuals reporting a history of NSSI were interviewed (M= 18.52 years old, SD = 1.18 years). NSSI characteristics, including frequency, age of onset, method of NSSI, pain and control during NSSI, and degree of medical injury were compared between men (n=19) and women (n=29). Men and women differed significantly on age of onset, degree of medical injury, and NSSI methods. This study supports previous findings of gender differences in NSSI and suggests that further investigation of gender differences in NSSI is warranted

An examination of non-suicidal self-injury in men: Do men differ from women in basic NSSI characteristics?

Researchers have reported similar prevalence rates for non-suicidal self-injury (NSSI) among men and women, yet few studies have investigated gender differences in NSSI. This study describes and compares basic NSSI characteristics among a nonclinical sample by gender. Forty-eight individuals reporting a history of NSSI were interviewed (M= 18.52 years old, SD = 1.18 years). NSSI characteristics, including frequency, age of onset, method of NSSI, pain and control during NSSI, and degree of medical injury were compared between men (n=19) and women (n=29). Men and women differed significantly on age of onset, degree of medical injury, and NSSI methods. This study supports previous findings of gender differences in NSSI and suggests that further investigation of gender differences in NSSI is warranted

Self-Mutilation and Symptoms of Depression, Anxiety, and Borderline Personality Disorder

The goal of this study was to examine the relationship between self-mutilation and symptoms of depression and anxiety in a nonclinical population. Selfmutilators reported significantly more symptoms of depression and anxiety than did the control group. When the group of self-mutilators was divided into individuals who cut themselves and individuals who harm themselves in other ways, we found that the between-group differences were primarily due to individuals with a history of cutting. Yet when symptoms of borderline personality disorder (BPD) were statistically controlled, all significant between-group differences in depressive and anxious symptoms were reduced to nonsignificant. These findings highlight the importance of assessing symptoms of BPD in self-mutilators, regardless of diagnosis