University of New Hampshire

About: University of New Hampshire is a education organization based out in Durham, New Hampshire, United States. It is known for research contribution in the topics: Population & Solar wind. The organization has 9379 authors who have published 24025 publications receiving 1020112 citations. The organization is also known as: UNH.

Perceived Role Conflict, Role Ambiguity, and Teacher Burnout

Abstract: This study of 469 classroom teachers examined the relationship of role conflict and role ambiguity to teacher burnout. Three aspects of burnout were examined: feelings of emotional exhaustion, depe...

The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission: design, execution, and first results

Abstract: . The NASA Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission was conducted in two 3-week deployments based in Alaska (April 2008) and western Canada (June–July 2008). Its goal was to better understand the factors driving current changes in Arctic atmospheric composition and climate, including (1) influx of mid-latitude pollution, (2) boreal forest fires, (3) aerosol radiative forcing, and (4) chemical processes. The June–July deployment was preceded by one week of flights over California (ARCTAS-CARB) focused on (1) improving state emission inventories for greenhouse gases and aerosols, (2) providing observations to test and improve models of ozone and aerosol pollution. ARCTAS involved three aircraft: a DC-8 with a detailed chemical payload, a P-3 with an extensive aerosol and radiometric payload, and a B-200 with aerosol remote sensing instrumentation. The aircraft data augmented satellite observations of Arctic atmospheric composition, in particular from the NASA A-Train. The spring phase (ARCTAS-A) revealed pervasive Asian pollution throughout the Arctic as well as significant European pollution below 2 km. Unusually large Siberian fires in April 2008 caused high concentrations of carbonaceous aerosols and also affected ozone. Satellite observations of BrO column hotspots were found not to be related to Arctic boundary layer events but instead to tropopause depressions, suggesting the presence of elevated inorganic bromine (5–10 pptv) in the lower stratosphere. Fresh fire plumes from Canada and California sampled during the summer phase (ARCTAS-B) indicated low NOx emission factors from the fires, rapid conversion of NOx to PAN, no significant secondary aerosol production, and no significant ozone enhancements except when mixed with urban pollution.

Risk factors for youth victimization: Beyond a lifestyles/routine activities theory approach.

Abstract: Past efforts to understand the risks for youth victimization have primarily utilized concepts from lifestyle or routine activity theory, such as the increased exposure and reduced guardianship that are entailed when youth engage in risky or delinquent behavior. In this article, we argue that other personal characteristics put youth at risk, not through any lifestyle or routine activity mechanism, but by making certain youth more "congruent" with the needs, motives, or reactivities of potential offenders. Three specific types of such characteristics are those that increase the potential victim's target vulnerability (e.g., physical weakness or psychological distress), target gratifiability (e.g., female gender for the crime of sexual assault), or target antagonism (e.g., behaviors or ethnic or group identities that may spark hostility or resentment). Using data from a national youth survey, we test variables measuring such aspects of target congruence and show that they make a significant contribution over and above lifestyle variables alone in predicting nonfamily, sexual, and parental assault.