Augmenting Lecture With Active Learning Techniques

Augmenting Lecture With Active Learning Technique

Are NH3_3 and CO2_2 ice present on Miranda?

Published near-infrared spectra of the four largest classical Uranian satellites display the presence of discrete deposits of CO$_2$ ice, along with subtle absorption features around 2.2 $\mu$m. The two innermost satellites, Miranda and Ariel, also possess surfaces heavily modified by past endogenic activity. Previous observations of the smallest satellite, Miranda, have not detected the presence of CO$_2$ ice, and a report of an absorption feature at 2.2 $\mu$m has not been confirmed. An absorption feature at 2.2 $\mu$m could result from exposed or emplaced NH$_3$- or NH$_4$-bearing species, which have a limited lifetime on Miranda's surface, and therefore may imply that Miranda's internal activity was relatively recent. In this work, we analyzed near-infrared spectra of Miranda to determine whether CO$_2$ ice and the 2.2-$\mu$m feature are present. We measured the band area and depth of the CO$_2$ ice triplet (1.966, 2.012, and 2.070 $\mu$m), a weak 2.13-$\mu$m band attributed to CO$_2$ ice mixed with H$_2$O ice, and the 2.2-$\mu$m band. We confirmed a prior detection of a 2.2-$\mu$m band on Miranda, but we found no evidence for CO$_2$ ice, either as discrete deposits or mixed with H$_2$O ice. We compared a high signal-to-noise spectrum of Miranda to synthetic and laboratory spectra of various candidate compounds to shed light on what species may be responsible for the 2.2-$\mu$m band. We conclude that the 2.2-$\mu$m absorption is best matched by a combination of NH$_3$ ice with NH$_3$-hydrates or NH$_3$-H$_2$O mixtures. NH$_4$-bearing salts like NH$_4$Cl are also promising candidates that warrant further investigation.Comment: 29 pages, 10 figures. Accepted for publication in Planetary Science Journa

Charles W. Bolen Faculty Recital Series: Dazzling Divas, November 3, 2009

Center for the Performing ArtsNovember 3, 2009Tuesday Evening8:00 p.m

Development of a Health Promotion Program: Targeting Adolescent Behaviors and Attitudes Toward Prescription Opioids

The current opioid epidemic kills an estimated four people every day in Massachusetts and is considered one of the greatest health threats to adolescents. Massachusetts state data indicates opioid addiction is a public health crisis, which requires the development of a health promotion program for adolescents and legislative action. The innovative eight-week middle school-based program Promote Opioid Prevention Program 4 Youth (POPPY) is implemented during Health and Wellness classes. POPPY is based on the Social Cognitive Theory, focusing on environmental and health behaviors. The goals of this distinct program are to: reduce adolescents\u27 misuse of prescription opioid medication, increase adolescents\u27 self-efficacy to make healthy decisions regarding misuse of prescription opioid medication, and to foster an environment conducive to preventing misuse of prescription opioid medication, while building social and self-management skills. The POPPY health promotion program will provide education that leads to development of health-related decision-making skills. Ultimately, healthier decisions lead to a reduction in opioid misuse risk factors such as peer pressure, social influence, curiosity, and experimentation. Protecting youth from health risks is critical to preventing fatalities associated with chronic conditions such as drug addiction that can lead to the onset of other major illnesses later-on in adulthood

Reading problems of the bottom third: grades one through six

Thesis (Ed.M.)--Boston Universit