University of North Texas

About: University of North Texas is a education organization based out in Denton, Texas, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 11866 authors who have published 26984 publications receiving 705376 citations. The organization is also known as: Fight, North Texas & UNT.

An exploratory study of vicarious trauma among therapist trainees.

Abstract: The current study explored vicarious trauma among therapist trainees in relation to history of trauma, experience level, trauma-specific training, and defense style. Students in graduate clinical and counseling psychology training programs (N 129) completed the Trauma Symptom Inventory, Defense Style Questionnaire, and an experience questionnaire. Results indicated trauma symptoms were significantly associated with defense style, which appeared to moderate personal trauma history and experience level. Trauma-specific training was also independently related to trauma symptoms. Notably, over half the sample reported a self-sacrificing defense style, which was a risk factor for vicarious trauma. Training implications of the findings are discussed.

Learning to Grade Short Answer Questions using Semantic Similarity Measures and Dependency Graph Alignments

Abstract: In this work we address the task of computerassisted assessment of short student answers. We combine several graph alignment features with lexical semantic similarity measures using machine learning techniques and show that the student answers can be more accurately graded than if the semantic measures were used in isolation. We also present a first attempt to align the dependency graphs of the student and the instructor answers in order to make use of a structural component in the automatic grading of student answers.

A non-invasive technique for sequential collection of earthworm (Lumbricus terrestris) leukocytes during subchronic immunotoxicity studies

Abstract: We have compared two methods for collecting earthworm leukocytes (coelomocytes) with respect to cell yield, viability and behaviour in immunoassays. Non-invasive extrusion was more efficient than puncturing the coelomic cavity. Extrusion does not produce trauma to earthworms maintained under long term laboratory conditions. Neither technique modified immune assays, as determined by erythrocyte and secretory rosette formation, and phagocytosis, since all 3 were functionally equivalent. After an initial extrusion, sequential leukocyte collections by extrusion are possible at intervals of 6 weeks without affecting total and differential cell counts and rosette formation.

Sleep tendency during extended wakefulness: insights into adolescent sleep regulation and behavior

Abstract: Sleep tendency (latency to sleep onset) was examined during extended waking in prepubertal and mature adolescents to determine whether sleep pressure is lower near bedtime in the latter group. Participants were nine prepubertal (pubertal stage Tanner 1, mean age 11.1 years, SD+/-1.3 years, five males) and 11 pubertally mature adolescents (Tanner 5, 13.9+/-1.2 years, three males). They spent 10 nights at home on an identical fixed 10-h sleep schedule followed by a 36-h constant routine with sleep latency tests at 2-h intervals using standard polysomnography. Saliva was collected to assess dim-light melatonin onset (DLMO) phase. DLMO was earlier in the Tanner 1 (mean clock time=20:33 hours, SD=49 min) than Tanner 5 group (21:29 hours+/-42 min). Sleep latency compared at a 'critical period' spanning 12.5 (20:30 hours clock time) to 18.5 h (02:30 hours) after waking did not differ at 20:30 hours, but was shorter for the Tanner 1 group at 22:30 hours (Tanner 1=9.2+/-6.3 min; Tanner 5=15.7+/-5.8 min), 00:30 hours (Tanner 1=3.6+/-1.7 min; Tanner 5=9.0+/-6.4 min), and 02:30 hours (Tanner 1=2.0+/-1.7 min; Tanner 5=4.3+/-3.2 min; trend). These differences were apparent controlling for circadian phase by partial correlation. Sleep tendency after 14.5, 16.5, and 18.5 h awake was lower in mature versus prepubertal adolescents, supporting our hypothesis that a developmental change of intrinsic sleep-wake regulation may provide physiologically mediated 'permission' for later bedtimes in older adolescents.

Female Collegiate Athletes: Prevalence of Eating Disorders and Disordered Eating Behaviors

Abstract: Objective: The authors assessed the prevalence of pathogenic eating and weight-control behaviors among female college athletes, using a psychometrically valid measure. Participants: Participants were 204 college athletes (M age = 20.16 years, SD = 1.31 years) from 17 sports at 3 universities. On average, they participated in their sport for 10.88 years (SD = 16.68 years) and on their college team for 2.10 years (SD = 1.03 years). Methods: Participants completed a demographic and weight background questionnaire, Questionnaire for Eating Disorder Diagnoses, and the Bulimia Test-Revised. Results: The authors classified participants as eating disordered (n = 4, 2.0%), symptomatic (n = 52, 25.5%), and asymptomatic (n = 148, 72.5%). Few participants engaged in binge eating; most used exercise, as opposed to vomiting, dieting, laxatives, or diuretics, to control their weight. Conclusions: Female athletes suffer from eating disorders, and most experience symptom levels that are subclinical but problematic.