The response of monoenergetic gamma rays in finite media are investigated

In a study of the transport of radiation in matter, the response parameters of monoenergetic gamma rays incident on various materials with finite geometries were calculated on a CDC 3600 computer. The report includes results for gamma rays normal to cyclindrical germanium and silicon detectors

Impact of Beaver Ponds on Stream Temperature and on Solar Radiation Penetration in Water

Beaver dams alter streams characteristics in a way that promotes the diversity of aquatic species and provides a wide distribution of temperatures within beaver ponds. In order to quantify the spatial distribution of these temperatures, a process-based temperature model was developed for a beaver pond in Northern Utah. This model provided insight into the processes and characteristics that are driving these temperatures. Solar radiation is one of these processes that is often the primary driver of stream temperature. There is a need to develop methods to measure the fate of solar radiation within the water to better represent solar radiation within stream temperature models. Black-body pyranometers are instruments that measure solar radiation in air, but require corrections for use underwater. Studies were conducted investigating methods for correcting these instruments. Based on the results of these studies it is suggested that these corrections are dependent on the spectrum of the light source and that the instrument needs further corrections when the light source is measured from different angles; therefore there is a need for further investigation into pyranometer corrections in order to measure the fate of solar radiation in natural water bodies. Combined, this research provides methods and suggests additional research opportunities for more accurately quantifying and predicting stream temperatures for waters impacted by beaver

A search for diffuse band profile variations in the rho Ophiuchi cloud

High signal-to-noise profiles of the broad diffuse interstellar band at 4430 A were obtained on the 2.2-m telescope at the Mauna Kea Observatory, using the newly-developed pulse-counting multi-anode microchannel array detector system in an effort to determine whether the band profile varies with mean grain size as expected if the band is produced by absorbers embedded in grain lattices. The lack of profile variability over several lines of sight where independent evidence indicates that the mean grain size varies shows that lambda 4430 is probably not formed by the same grains that are responsible for interstellar extinction at visible wavelengths. The possibility that this band is created by a population of very small ( approximately 100 A) grains is still viable, as is the hypothesis that it has a molecular origin

Plantation Echoes : Grand Medley

https://digitalcommons.library.umaine.edu/mmb-ps/1594/thumbnail.jp

Expungement and Employment Law: The Conflict Between an Employer\u27s Need to Know About Juvenile Misdeeds and an Employee\u27s Need to Keep Them Secret

Supreme Court decisions granting First Amendment protection to non-obscene but sexually explicit movies, books, magazines, and dancing have created a number of difficult issues concerning the lawful scope of local community control over businesses that deal in these forms of expression

Food Pantry Outreach and Research

Food security is defined as access by all people at all times to enough food for an active, healthy life (Coleman-Jensen et al., 2016). In 2015, an estimated 42.2 million Americans experienced food insecurity, that is, they struggled to feed themselves or their families due to low or insufficient incomes. Food insecure individuals must find alternative sources for food such as soup kitchens, shelters, federal nutrition benefits programs, and local food pantries. Food pantries, which rely on donations, fund-raising, and support from organized regional food banks, serve a wide variety of low-income clients: elderly, disabled individuals, homeless, and working families with young children. These client bases are very diverse, and the different demographic groups benefit from different types of outreach endeavors targeting health and mental health needs, nutrition education, or federal program assistance, among many others. Research into this issue is vital in order to determine the strategies most beneficial for populations in need. During the spring of 2017, a URI undergraduate psychology class, Applied Methods in Psychological Research (PSY302), has been conducting research in food pantries across Rhode Island. Undergraduate students have visited 21 food pantries in 15 towns to administer a hunger research survey to food pantry clients. The survey contains a wide range of questions relating to where people get food, their level of food insecurity, and their ease of access to other community resources. The results of the survey will be used by the RI Community Food Bank and the associated pantries to identify future outreach programs that can best help their clients. For my honors project, I have worked as part of the class project’s team. In the early stages of the project I assisted in designing the data collection plan and I was responsible for coordinating with local RI food pantries to facilitate the dates and times for student researchers’ visits. I also contributed to the overall curriculum of the course, working with the student researchers and providing outreach and diversity trainings. The culmination of my project is a literature review on food insecurity and the current state of the food pantry system in the U.S, along with an overview of the current research and relevant findings. The perceptions and experiences of the student researchers is also highlighted in an attempt to capture how the experience of working in the community may have contributed to both their professional development and research skills, as well as their understanding of the challenges facing low income Rhode Island households

Analysis of reentry into the White Sands Missile Range (WSMR) for the LifeSat mission

This study investigates the reentry of the LifeSat vehicles into the WSMR. The LifeSat mission consists of two reusable reentry satellites, each carrying a removable payload module, which scientists will use to study long-term effects of microgravity, Van Allen belt radiation, and galactic cosmic rays on living organisms. A series of missions is planned for both low-Earth circular orbits and highly elliptic orbits. To recover the payload module with the specimens intact, a soft parachute landing and recovery at the WSMR is planned. This analysis examines operational issues surrounding the reentry scenario to assess the feasibility of the reentry