Massively Multiplayer Online Gamers: Motivations and Risks

Massively multiplayer online games (MMOGs) are a popular type of online video game. While these games and their players have been studied previously, there is gap in the literature that examines the relationship between one’s motivation to play MMOGs and loneliness, depression, and problematic use. For this study, 440 players of World of Warcraft (WoW), a popular MMOG, completed a demographics questionnaire and four measures, including Williams, Yee, & Caplan’s (2008) motivation measure, Peter’s & Malesky’s (2008) World of Warcraft-specific Problematic Usage-Engagement Questionnaire, UCLA’s Loneliness scale, and The Depression Anxiety Stress Scales. Results from quantitative analyses suggest that MMO players who are motivated to play for reasons of achievement and immersion are more likely to experience problematic use than those persons who play for social motivations. Loneliness and depression were only positively related with immersion motivated players, and there exists a significant negative relationship between social motivation and depression. These results suggest that gamers who play WoW for immersive reasons are the most at-risk in comparison to their peers. Implications for counseling, limitations, and directions for future research are discussed

A Synthesis of Urban-Sustainability Frameworks

There are far-reaching consequences of contemporary urbanization for sustainability and human well-being. Most of the world populations live in urban areas, with the most rapid growth in urban populations occurring in the medium-sized cities of developing countries. Urbanization causes changes in land use and land cover across local, regional and global scales, which have an immense range of consequences. The interconnected social, economic, and ecological components of contemporary urbanization need to be studied in order to prevent loss of ecosystem services and encourage future environmental, economic, and social wellbeing. These changes in land use, increasing population, and income levels are becoming increasingly important as the environment, economies, and social aspects of cities are changing with the growth. In this research, I will synthesize theoretical and conceptual frameworks for moving towards urban sustainability. To this end, I will study the urbanization literature, specifically papers that discuss different aspects of the issue and possible solutions. The terminology used to describe urbanization, the field of study from which the authors originate, the country affiliation, and the main components of their theoretical or conceptual points of reference; including any suggested solutions to problems of urbanization are the areas of interest for this research

The Espy Project: From Paper Archives to Digital Scholarship

The M.E. Grenander Department of Special Collections and Archives has digitized the most complete existing collection of execution records and is making them available for digital scholarship. M. Watt Espy spent his life documenting the death penalty in the United States. He created over 24,000 index cards and over 100,000 pages of reference material to document each case. The project connects this source material to a problematic 1980s-era execution dataset. We implemented Samvera’s open source digital repository software, Hyrax, which provides online access to all of the digitized materials. Hyrax allows users to query digital collections for online viewing or download the collections as data for statistical analysis. So far, the project has increased the number of known executions from 15,000 to almost 25,000 cases. Since many of these cases include communities that have been historically under-documented, such as people who were enslaved, these additions will reshape how we understand the death penalty and its role in society. The poster highlights Hyrax’s open platform configuration, and how it supports the Espy Project and promotes digital scholarship

Car-free by choice or Carless by economic constraint? Evidence of Changing Characteristics in 20 Major US Cities

As people living in cities in the US forgo buying a car, choosing instead to utilize other modes for trips, planners should ensure equitable access for these households to reach amenities, jobs, and services without a car. Further research into both long-term indicators of travel behavior like car ownership and shorter-term factors like mode choice for work and nonwork trips should be studied to understand the needs and choices of car-free households living in different built environments. Finally, we can mitigate future consequences of further CO2 emissions by designing cities that prioritize walking, bicycling, and transit, over automobiles, as these alternative modes are crucial in improving the built environment, health, relieving congestion, reducing parking needs, and more.Ope

A Synthesis of Urban-Sustainability Frameworks

There are far-reaching consequences of contemporary urbanization for sustainability and human well-being. Most of the world populations live in urban areas, with the most rapid growth in urban populations occurring in the medium-sized cities of developing countries. Urbanization causes changes in land use and land cover across local, regional and global scales, which have an immense range of consequences. The interconnected social, economic, and ecological components of contemporary urbanization need to be studied in order to prevent loss of ecosystem services and encourage future environmental, economic, and social wellbeing. These changes in land use, increasing population, and income levels are becoming increasingly important as the environment, economies, and social aspects of cities are changing with the growth. In this research, I will synthesize theoretical and conceptual frameworks for moving towards urban sustainability. To this end, I will study the urbanization literature, specifically papers that discuss different aspects of the issue and possible solutions. The terminology used to describe urbanization, the field of study from which the authors originate, the country affiliation, and the main components of their theoretical or conceptual points of reference; including any suggested solutions to problems of urbanization are the areas of interest for this research

A mouse model displays host and bacterial strain differences in Aerococcus urinae urinary tract infection

In recent years, the clinical significance of Aerococcus urinae has been increasingly recognized. A. urinae has been implicated in cases of urinary tract infection (UTI; acute cystitis and pyelonephritis) in both male and female patients, ranging from children to older adults. Aerococcus urinae can also be invasive, causing urosepsis, endocarditis, and musculoskeletal infections. Mechanisms of pathogenesis in A. urinae infections are poorly understood, largely due to the lack of an animal model system. In response to this gap, we developed a model of A. urinae urinary tract infection in mice. We compared A. urinae UTI in female C3H/HeN and C57BL/6 mice and compared four clinical isolates of A. urinae isolated from patients with UTI, urgency urinary incontinence, and overactive bladder. Our data demonstrate that host genetic background modulates A. urinae UTI. Female C57BL/6 female mice rapidly cleared the infection. Female C3H/HeN mice, which have inherent vesicoureteral reflux that flushes urine from the bladder up into the kidneys, were susceptible to prolonged bacteriuria. This result is consistent with the fact that A. urinae infections most frequently occur in patients with underlying urinary tract abnormalities or disorders that make them susceptible to bacterial infection. Unlike uropathogens such as E. coli, which cause infection and inflammation both of the bladder and kidneys in C3H/HeN mice, A. urinae displayed tropism for the kidney, persisting in kidney tissue even after clearance of bacteria from the bladder. Aerococcus urinae strains from different genetic clades displayed varying propensities to cause persistent kidney infection. Aerococcus urinae infected kidneys displayed histological inflammation, neutrophil recruitment and increased pro-inflammatory cytokines. These results set the stage for future research that interrogates host-pathogen interactions between A. urinae and the urinary tract

Aerococcus urinae isolated from women with lower urinary tract symptoms: In vitro aggregation and genome analysis

Aerococcus urinae is increasingly recognized as a potentially significant urinary tract bacterium. A. urinae has been isolated from urine collected from both males and females with a wide range of clinical conditions, including urinary tract infection (UTI), urgency urinary incontinence (UUI), and overactive bladder (OAB). A. urinae is of particular clinical concern because it is highly resistant to many antibiotics and, when undiagnosed, can cause invasive and life-threatening bacteremia, sepsis, or soft tissue infections. Previous genomic characterization studies have examined A. urinae strains isolated from patients experiencing UTI episodes. Here, we analyzed the genomes of A. urinae strains isolated as part of the urinary microbiome from patients with UUI or OAB. Furthermore, we report that certain A. urinae strains exhibit aggregative in vitro phenotypes, including flocking, which can be modified by various growth medium conditions. Finally, we performed in-depth genomic comparisons to identify pathways that distinguish flocking and nonflocking strains. IMPORTANCE Aerococcus urinae is a urinary bacterium of emerging clinical interest. Here, we explored the ability of 24 strains of A. urinae isolated from women with lower urinary tract symptoms to display aggregation phenotypes in vitro. We sequenced and analyzed the genomes of these A. urinae strains. We performed functional genomic analyses to determine whether the in vitro hyperflocking aggregation phenotype displayed by certain A. urinae strains was related to the presence or absence of certain pathways. Our findings demonstrate that A. urinae strains have different propensities to display aggregative properties in vitro and suggest a potential association between phylogeny and flocking

Intervention and Outcomes of Children in Different Types of Listening and Spoken Language Programs

This study explores the impact of the type and dosage of listening and spoken language (LSL) services on speech and language outcomes in children with cochlear implants or hearing aids in two LSL programs. Identical demographic variables were collected across the two programs for use in the statistical analyses. Speech and language outcomes were examined at ages 3 and 5 using standardized test measures. At age 3, significant differences in LSL outcomes existed between programs for children using cochlear implants but not for children using binaural hearing aids. However, at age five, outcomes were similar between the different LSL programs for children with hearing aids and cochlear implants. Total hours of LSL services do not serve as a predictor of LSL outcomes at five years of age. However, early identification of hearing loss, early amplification, and early enrollment in a LSL program were highly influential factors affecting LSL outcomes at three and five years of age. Non-verbal IQ and maternal education levels also influence LSL outcomes. Children with earlier access to hearing technology and LSL intervention may need fewer hours of LSL services to achieve age-appropriate LSL outcomes. Overall, both of these LSL programs supported age-appropriate speech and language outcomes by age 5

Investigation of the Thomson scattering-ECE discrepancy in ICRF heated plasmas at Alcator C-Mod

This paper reports on new experiments at Alcator C-Mod that were performed in order to investigate the long-standing, unresolved discrepancy between Thomson scattering (TS) and electron cyclotron emission (ECE) measurements of electron temperature in high temperature tokamak plasmas. Ion cyclotron range of frequency (ICRF) heating is used to produce high temperature conditions where the type of TS-ECE discrepancy observed in the past at JET and TFTR should become observable. At Alcator C-Mod, plasmas with Te(0) up to 8 keV are obtained using ion cyclotron resonance heating (ICRH), ICRF mode conversion heating and a combination of the two heating methods in order to explore the hypothesis that the presence of ICRH-generated fast ions may be related to the discrepancy. In all high temperature cases, the TS and ECE measurements of electron temperature agree to within experimental uncertainties. We find no evidence for the type of discrepancy reported at JET and TFTR. These results show that the TS-ECE discrepancy does not depend on high temperatures alone and also that the presence of ICRH-generated fast ions is insufficient to cause the TS-ECE discrepancy.United States. Dept. of Energy (DE-FC02-99ER54512