Teen Dating Violence: Adolescent Development and its Role in the Success of Prevention Programs

This study was conducted to explore adolescent development and adolescent dating violence in order to determine if prevention programs need to be written to reflect the different stages of development. Research was gathered from four areas: adolescent development, adolescent romantic relationships, teen dating violence, and teen dating violence prevention programs. Using an inductive approach, a content analysis of the literature was used to answer the following questions: 1) After reviewing research on adolescent development and adolescent romantic relationships; are there stages in adolescent romantic relationships where conflict appears most often? 2) In the teen dating violence studies, what stage(s) of adolescent romantic relationships was the relationship in when the violence occurred? 3) Are the teen dating violence prevention programs effective across the age ranges for which they are written? An examination of the observations to search for any themes or patterns was performed and any patterns that appeared across the observations were documented. After analyzing the results of the studies, any observations made were summarized

Effects of Acute Tryptophan Depletion on Three Different Types of Behavioral Impulsivity

Introduction: While central nervous system serotonin has been implicated in a variety of problematic impulsive behaviors, biological manipulation of brain serotonin using acute tryptophan depletion for studying changes in impulsive behavior has received little attention. Methods: Using identical treatment conditions, we examined the effects of reduced serotonin synthesis for each of three matched groups using acute tryptophan depletion. Thirty healthy men and women (ages 18–45) were assigned to perform one of three tasks assessing different types of behavioral impulsivity: response initiation, response inhibition, and consequence sensitivity (N = 90). Participants completed two experimental days during which each consumed either a tryptophan-depletion or balanced-placebo amino-acid formulation and completed 5 sessions of their respective tasks at 0.25 h before and 1.5, 4.0, 5.0, and 6.0 h after beverage consumption. Results: During peak effectiveness (5.0 h to 6.0 h following amino-acid consumption), depletion produced selective differences dependent on the type of impulsivity being tested. Specifically, relative to baseline testing (pre-depletion), response initiation impulsivity was significantly increased during the peak effects of depletion. And, when compared to placebo control, both response initiation and consequence sensitivity impulsivity were increased during the peak effects of depletion. Conclusion: Though response initiation and consequence sensitivity impulsivity were affected by tryptophan depletion, response inhibition impulsivity was not, suggesting that other biological processes may underlie this specific component of impulsivity. Future research in other populations or using different pharmacological agents is warranted to further examine the biological processes underlying these components of impulsivity

A Template for Analyzing and Projecting Labor Market Indicators

This note is a reference guide for the unemployment template, an econometric tool that allows researchers to analyze and project labor market indicators for any country with sufficient data coverage. Section I explains the motivation behind designing a new surveillance tool to study labor markets, and summarizes the key features of the template. Section II details the data inputs needed and their sources. Section III describes the methods used to estimate the employment-growth elasticity, a measure of the extent to which employment responds to output. Section IV outlines the medium-term outlook table and projection charts created by the template once the inputs are customized to generate an appropriate elasticity. Finally, Section V presents a discussion of how to interpret the results produced by the template, and of the issues that arise from projecting labor market indicators

A Template for Analyzing and Projecting Labor Market Indicators

This note is a reference guide for the unemployment template, an econometric tool that allows researchers to analyze and project labor market indicators for any country with sufficient data coverage. Section I explains the motivation behind designing a new surveillance tool to study labor markets, and summarizes the key features of the template. Section II details the data inputs needed and their sources. Section III describes the methods used to estimate the employment-growth elasticity, a measure of the extent to which employment responds to output. Section IV outlines the medium-term outlook table and projection charts created by the template once the inputs are customized to generate an appropriate elasticity. Finally, Section V presents a discussion of how to interpret the results produced by the template, and of the issues that arise from projecting labor market indicators

The disruption of Celf6, a gene identified by translational profiling of serotonergic neurons, results in autism-related behaviors

The immense molecular diversity of neurons challenges our ability to understand the genetic and cellular etiology of neuropsychiatric disorders. Leveraging knowledge from neurobiology may help parse the genetic complexity: identifying genes important for a circuit that mediates a particular symptom of a disease may help identify polymorphisms that contribute to risk for the disease as a whole. The serotonergic system has long been suspected in disorders that have symptoms of repetitive behaviors and resistance to change, including autism. We generated a bacTRAP mouse line to permit translational profiling of serotonergic neurons. From this, we identified several thousand serotonergic-cell expressed transcripts, of which 174 were highly enriched, including all known markers of these cells. Analysis of common variants near the corresponding genes in the AGRE collection implicated the RNA binding protein CELF6 in autism risk. Screening for rare variants in CELF6 identified an inherited premature stop codon in one of the probands. Subsequent disruption of Celf6 in mice resulted in animals exhibiting resistance to change and decreased ultrasonic vocalization as well as abnormal levels of serotonin in the brain. This work provides a reproducible and accurate method to profile serotonergic neurons under a variety of conditions and suggests a novel paradigm for gaining information on the etiology of psychiatric disorders

The dopamine D2 receptor gene and depressive and anxious symptoms in childhood: Associations and evidence for gene-environment correlation and gene-environment interaction

ObjectiveS: Research implicates the A1 allele of the dopamine D2 receptor gene (DRD2) Taq1A polymorphism in the development of depression and anxiety. Furthermore, recent papers suggest that children with A1 allele of this gene may receive less positive parenting, and that the effects of this gene on child symptoms may be moderated by parenting. We sought to replicate and extend these findings using behavioral measures in a nonclinical sample of young children. Methods: In a sample of 473 preschool-aged children and their mothers, structured clinical interview measures and maternal reports of child symptoms were collected, and standardized observations of parent-child interactions were conducted. Results: An association was detected between the DRD2 A1 allele and symptoms of depression and anxiety indexed using interview and parent report methods. As found in previous reports, children with the DRD2 A1 allele received less supportive parenting and displayed higher levels of negative emotionality during parent-child interactions. Tests of mediation and moderation were conducted. Conclusion: We found associations between the DRD2 A1 allele and early-emerging anxious and depressive symptoms in a community sample of preschool-aged children, and evidence of a gene-environment correlation and moderation of the main effect of child genotype on child symptoms by parenting. © 2010 Wolters Kluwer Health | Lippincott Williams & Wilkins

Stellar Intensity Interferometry: Prospects for sub-milliarcsecond optical imaging

Using kilometric arrays of air Cherenkov telescopes, intensity interferometry may increase the spatial resolution in optical astronomy by an order of magnitude, enabling images of rapidly rotating stars with structures in their circumstellar disks and winds, or mapping out patterns of nonradial pulsations across stellar surfaces. Intensity interferometry (pioneered by Hanbury Brown and Twiss) connects telescopes only electronically, and is practically insensitive to atmospheric turbulence and optical imperfections, permitting observations over long baselines and through large airmasses, also at short optical wavelengths. The required large telescopes with very fast detectors are becoming available as arrays of air Cherenkov telescopes, distributed over a few square km. Digital signal handling enables very many baselines to be synthesized, while stars are tracked with electronic time delays, thus synthesizing an optical interferometer in software. Simulated observations indicate limiting magnitudes around m(v)=8, reaching resolutions ~30 microarcsec in the violet. The signal-to-noise ratio favors high-temperature sources and emission-line structures, and is independent of the optical passband, be it a single spectral line or the broad spectral continuum. Intensity interferometry provides the modulus (but not phase) of any spatial frequency component of the source image; for this reason image reconstruction requires phase retrieval techniques, feasible if sufficient coverage of the interferometric (u,v)-plane is available. Experiments are in progress; test telescopes have been erected, and trials in connecting large Cherenkov telescopes have been carried out. This paper reviews this interferometric method in view of the new possibilities offered by arrays of air Cherenkov telescopes, and outlines observational programs that should become realistic already in the rather near future.Comment: New Astronomy Reviews, in press; 101 pages, 11 figures, 185 reference

The Grizzly, September 11, 2003

Unique Organizations Attract New Members at Activities Fair • To Party or Not to Party: How is the Question • Reflections on the Post-September 11th World • An Anniversary Like No Other • A Major Decision • A Day in the Life: Lounge Living • Student Spotlight: Locks for Love • Activities Coming to You • Family Day at UC • John Mayer & Counting Crows • Opinions: Please Read: E-mail Abuse is Annoying; A Continuing Story: Out of the Middle East; The [De] Stabilized Situation in Iraq • 9/11: Reliving the Tragedy • SIGI Plus to the Rescue • UC on File Sharing: Joining the Bandwagon • Party Etiquette 101 • Price Comparison: Popular CDs • The Wit and Wisdom of J. D. Salinger • Bears Knock Out Susquehanna, 24-17 • Volleyball Team Makes it Three in a Row • TCNJ Field Hockey Blanks Ursinus • Men\u27s Soccer Comes out Even • Ursinus Women Dominate Soccer Classic • The Kobe Bryant Sagahttps://digitalcommons.ursinus.edu/grizzlynews/1540/thumbnail.jp

Safety and Security Certification of Electric Bus Fleets - Industry Best Practices

Recently, bus transit agencies nationwide have slowly shifted from reducing their carbon footprints through alternative fuel vehicles to eliminating their carbon emissions by adopting battery electric fleets. This push is supported by FTA's commitment to reducing carbon emissions from transit vehicles, infrastructure, and construction through their Low or No Emissions Grant Program funding. In harmony with the battery electric bus (BEB) market's expansion, bus transit systems are also presented with the emergence of new technologies not commonly found in U.S. transit systems, specifically with BEBs. The progression of such technology has exemplified the need to expand current safety and security certification (SSC) capabilities to ensure that agencies can maintain their overall safety performance. Therefore, the primary objective of this research initiative is to develop minimum SSC program practices and protocols for transit agencies to verify that BEBs and their associated facilities, systems, and equipment are safe for revenue operations