Social and Behavioral Sciences Commons^™

Focal Point, Volume 28, Portland State University. Regional Research Institute

Research and Training Center - Focal Point

Between one–third and one–half of young adults with mental health challenges have co-occurring substance use issues. This issue of Focal Point examines treatments and supports for this population.

Training For Change: An Interview With Dr. Jeremy Brown, President, Pcc, Sheila A. Martin, Jeremy Brown

Metroscape

Interview with Dr. Jeremy Brown, President of Portland Community College, provides insights into PCC’s role in our community and in fulfilling our aspirations for a highly educated, engaged citizenry. The Indicators page shows us how community colleges like PCC fill important needs in the post-secondary education system.

Dynamic Revenue Maximization: A Continuous Time Approach, Dirk Bergemann, Philipp Strack

Cowles Foundation Discussion Papers

We characterize the profit-maximizing mechanism for repeatedly selling a non-durable good in continuous time. The valuation of each agent is private information and changes over time. At the time of contracting every agent privately observes his initial type which influences the evolution of his valuation process. In the profit-maximizing mechanism the allocation is distorted in favor of agents with high initial types. We derive the optimal mechanism in closed form, which enables us to compare the distortion in various examples. The case where the valuation of the agents follows an arithmetic/geometric Brownian motion, Ornstein-Uhlenbeck process, or is derived from a …

Dynamic Revenue Maximization: A Continuous Time Approach, Dirk Bergemann, Philipp Strack

Cowles Foundation Discussion Papers

We characterize the profit-maximizing mechanism for repeatedly selling a non-durable good in continuous time. The valuation of each agent is private information and changes over time. At the time of contracting every agent privately observes his initial type which influences the evolution of his valuation process. In the profit-maximizing mechanism the allocation is distorted in favor of agents with high initial types. We derive the optimal mechanism in closed form, which enables us to compare the distortion in various examples. The case where the valuation of the agents follows an arithmetic/geometric Brownian motion, Ornstein-Uhlenbeck process, or is derived from a …

A Survey Of Urban Agriculture Organizations And Businesses In The Us And Canada: Preliminary Results, Nathan Mcclintock, Mike Simpson

Urban Studies and Planning Faculty Publications and Presentations

This report summarizes the results of an online survey, conducted during February and March 2013, of 251 groups involved with urban agriculture (UA) projects in approximately 84 cities in the US and Canada. This is only a preliminary report. As such, we present descriptive statistics rather than a interpretive analysis of the survey responses. Furthermore, it is important to recognize that these results are not necessarily representative of all urban agriculture businesses and organizations across North America. Nevertheless, these results point to certain trends and patterns that offer rich opportunities for further inquiry.

Our preliminary results reveal that the UA …

Youth Realize Educational Gains Following Their Participation In Yap, Douglas N. Evans, Sheyla A. Delgado

Publications and Research

This report, conducted by the Research and Evaluation Center at John Jay College, examines the impact of the Youth Advocate Programs (YAP) on academic outcomes for 1,851 youth aged 14-17. The study found that YAP participation was linked to improved academic achievement and school attendance. The percentage of youth graduating or earning a GED increased from 2% at entry to 12% one year post-discharge. Additionally, school attendance improved, with fewer youth not attending school post-discharge, highlighting the program’s positive impact on academic engagement.

Politics Are Crushing The Standards, Dave Powell

Education Faculty Publications

The recent news that Oklahoma Gov. Mary Fallin signed a bill to, in the parlance of the times, "repeal and replace" the common-core standards in her state was surprising, to say the least, notwithstanding a legal challenge to the repeal filed in the Oklahoma Supreme Court by parents, teachers, and state board of education members on June 25. Before Gov. Fallin was against the standards, she supported them. [excerpt]

Perceptual Compensation In Individuals With Autism Spectrum Disorders, Elizabeth Anne Langston

Open Access Theses

Compensation for coarticulation is the extent in which an individual perceives the contextual variations of speech. When presented with an ambiguous consonant-vowel segment (e.g., a consonant halfway between /sa/ and /∫a/) research illustrates that a listener is likely to compensate for coarticulation with the following vowel. Therefore, a listener will be more likely to report an ambiguous speech sound as /s/ when it occurs before [u] than before [a]. Previous results have suggested that, within neurotypical individuals, the degree to which individuals compensate for coarticulation may be related to their Autism Quotient (AQ; Yu, 2010). However, this research did not …

Playing On The Periphery: Metagaming And Transgressive Play, Patrick S. Love

Open Access Theses

Gaming and play exist in connection to forces outside of the game systems themselves. Together, all these intersecting forces make up a meta game that informs and enables variance in play as well as creates barriers to entering play. This thesis fleshes out the framework of a metagame and shows how players can take a metagame perspective to transform, transcend, or even transgress barriers. This thesis discusses sources of metagaming and encompasses examples from video and traditional games.

The Rhetorical Constitution Of Online Community: Identification And Constitutive Rhetoric In The Community Of Reddit, Bradley Stephen Ludwig

Open Access Theses

The concepts of online identity and online community within the context of social media have been major research interests in the field of communication in recent years. Questions of interest include how the Internet and social media contribute to the construction of identity both online and offline, and what factors encourage participation in and contribution to online communities. This thesis will address these questions related to online identity and community from a rhetorical perspective to examine the role rhetoric plays in these processes and build on the application of rhetorical approaches to online contexts. Specifically, this project proposes a rhetorical …

Post-Conflict Reconstruction: Impediments And Challenges In The Process Of Sustainable Reconstruction And Development In Post-2014 Afghanistan, Mohammad Ilyas Payab

Open Access Theses

Armed conflicts have left numerous marks on the history of mankind and still continue to do so. They have resulted in considerable damage to the social and physical fabric of the society. Millions of people both in the past and present have been suffering from the consequences of this unfortunate man-made disaster. Yet we see a continuing trend that seems to be resistant to any change despite efforts on a global level. This study sets out to understand the nature of reconstruction and development after armed conflicts with a focus on Afghanistan. After more than a decade of expended …

Compositional Variability In Nasca Ceramics From The Las Trancas Valley, Nasca, Peru, Marcela Poirier

Open Access Theses

The Goal of this MS thesis is to contribute to the understanding of compositional variability in ceramics of the Southern Nasca Region. A total of 99 ceramic sherds from two las Trancas Valley sites (Santa Luisa and Higosñoc) underwent INAA. This study brings temporal depth to previous compositional studies and adds new information that helps with the understanding of the political economy of this region. The hypothesis proposed is that there will be compositional variability before and after Early Nasca, during the Early Intermediate period (1-750 CE). The theoretical approaches used to inform my hypothesis include political economy and behavioral …

The Parkinson's Experience Of Group Physical Activity: Understanding Social Support, Social Comparison, Physical Self-Perceptions, And Posttraumatic Growth, Tammy L. Sheehy

Open Access Theses

Group physical activity programs for clinical populations can provide opportunities for adaptive social interactions, improving perceptions of competence, and may facilitate posttraumatic growth (positive psychological changes resulting from traumatic life experiences). Therefore, the purpose of this study was to examine how people with Parkinson's experience social interactions and physical challenges in a group physical activity program, and to investigate what role they think those experiences play in posttraumatic growth. The study employed interpretative phenomenological analysis methodology (Smith, Flowers & Larkin, 2009). N= 20 participants ( n = 12 women; age = 56-79 years) in a boxing-based group exercise program …

The Effects Of Radar On Avian Behavior: Implications For Wildlife Management At Airports, Eleanor R. Sheridan

Open Access Theses

Airports are areas with a high availability of resources for wildlife to forage, breed, and roost. Airports also have different types of radars to assist with air traffic control as well as tracking of wildlife that could become a risk for aircraft. The effect of radar electromagnetic radiation on wildlife behavior is not well understood. The goal of this study was to determine if bird behavior is affected by radar in two contexts: static radar (e.g., surveillance radar) and approaching radar (e.g., aircraft weather radar). We used brown-headed cowbirds as a model species. In the static radar context, we performed …

Resort Vacation Activities And Recovery Experiences: A Case Of Visitors To Thailand, Maneenuch Tanyatanaboon

Open Access Theses

An increase of work demands during workdays and sometime on the weekends can put more stress on individuals and lead to a higher need for recovery. Vacation is a prime candidate of a longer respite that can ensure a more complete recovery process because it allows individuals to temporarily take several days or weeks off without actively engaging in their job. This study thus intends to explore which activities are done upon vacation and how can they influence an individual's recovery experiences. By reviewing the theories related to recovery, vacation activities, and recreation opportunities, the study's conceptual model was developed …

The Nature Of Parental Involvement In Middle School: Examining Nonlinear Associations, Elizabeth A. Wehrspann

Open Access Theses

Middle school is a time during which the importance of school performance and academic motivation increases, yet actual adolescent achievement and motivation tend to decline during this period. Extent research and theory highlight the importance of parental involvement in education for adolescents, as most work shows that parent involvement is positively related to academic achievement and motivation. However, there are also many mixed findings regarding the link between specific types of involvement (i.e., home-based involvement and academic socialization) and these outcomes. Further, little work has been done to examine the possible age-related differences in these associations. Guided by Self-Determination Theory …

Dismantling The Great Wall Of Prejudice: A Look At Centrality And Issue Importance In The Perpetuation Of Influence And Prejudice Reduction, Zachary Robert Wittrock

Open Access Theses

This study sought to utilize social network analysis to better understand how prejudice reduction can be spread from one person to another via interpersonal influence. Different types of prejudice reducing interventions were combined into one intervention. The role of centrality in the spread and perpetuation of influence was examined by measuring prejudice reduction in socially connected individuals who did not undergo the direct intervention. To further understand the role of centrality in prejudice reduction, the concept of issue importance was included to understand the differential impact that centrality has on interpersonal influence. Study 1 examined the effectiveness of the intervention, …

Influence Of Referential Coding In A Choice Task Performed In A Simulated Driving Cockpit, Aiping Xiong

Open Access Theses

Driving and other tasks performed by the driver of a vehicle are spatial. Thus, it is important to understand how the driver represents the spatial environment. In laboratory studies, the Simon task is used to study spatial coding. Participants are to make a left or right response to a nonspatial stimulus feature, but the stimulus can occur in a left or right position. The Simon effect is that responses are faster when the stimulus location corresponds with the response location. That effect is not usually found for a go/no-go task in which only one response is made to one of …

More Than A Game: Examining Sensemaking And Self-Organisation In Alternate Reality Games, Yeo Yun Ting Alanna

Open Access Theses

Alternate Reality Games (ARGs) are an emerging brand of online role-playing games, immersive and highly interactive. This new genre of games pioneered an effective and efficient form of collective play and problem-solving in loosely-defined situations, showcasing powerful and efficient sensemaking and self-organization at work. I intend to study an ARG titled "We Are Earthborne" in order to understand the processes of communication, sensemaking, and selforganization that occurs in the course of an ARG. Using the structure of Weick's organizational sensemaking and Latour's Actor-Network Theory as a lens, this study intends to break down how distributed groups of people can come …

A Cross-Site Study Of User Behavior And Privacy Perception In Social Networks, Yue Zhang

Open Access Theses

While online social networking sites have brought convenience and diversity in people's social lives, they have also been the source for information leakage. Researchers have been looking for ways to balance user privacy protection and information disclosure. However, literature suggested that many users either failed to perceive privacy risks correctly or they failed to behave in accordance with privacy awareness even they have already perceived potential risks. ^ This thesis conducted a survey to measure social network users' privacy attitude, privacy perception and their actual behavior when using social networking sites. The survey targeted at three populations of different cultural …

Relations Between Teachers’ Motivation And Students’ Motivation: A Self-Determination Theory Perspective, Inok Ahn

Open Access Theses

There is little research that examines impact teachers' motivation on students' motivation due to sparse attention to teachers' motivation. The primary purpose of this study was to investigate the relations between teachers' motivation and students' motivation using self-determination theory. Participants were 697 5th and 6th students and 35 of their teachers in Seoul, South Korea. Students completed the questionnaires for motivation, basic psychological needs, and perceptions of teacher's instructional styles. Teachers also answered questionnaires about their own motivation. Multiple regression analyses were used to analyze the data. Teaching experience was controlled for throughout the analysis process due to its significant …

Field To Flight: A Techno-Economic Analysis Of Stover To Aviation Biofuels Supply Chain, Amanda C. Bittner

Open Access Theses

Greenhouse gas emissions have been a growing concern. The transportation sector contributes to one-third of GHG emissions in the United States from fossil fuel burning. The Renewable Fuel Standard set a requirement for 16 billion gallons (ethanol equivalent) of cellulosic biofuels to be used in the market. Aviation biofuels can help to meet both of these problems as well as improve U.S. energy security.

Investment in the biofuel industry carries a lot of risk. The biofuel industry is run by the private sector, but can be incentivized by government. Cellulosic biofuels carry even more risk than first generation biofuels, because …

Systems For Delivering Electric Vehicle Data Analytics, Vamshi Krishna Bolly

Open Access Theses

n the recent times, advances in scientific research related to electric vehicles led to generation of large amounts of data. This data is majorly logger data collected from various sensors in the vehicle. It is predominantly unstructured and non-relational in nature, also called Big Data. Analysis of such data needs a high performance information technology infrastructure that provides superior computational efficiency and storage capacity. It should be scalable to accommodate the growing data and ensure its security over a network. This research proposes an architecture built over Hadoop to effectively support distributed data management over a network for real-time data …

Dental Fluctuating Asymmetry As A Measure Of Environmental Stress In Nasca, Shawna L. Follis

Open Access Theses

This thesis evaluates how environmental stressors affected three groups (Nasca, Loro, and Chakipampa) that lived in Nasca during the Early Intermediate Period (ca. A.D. 1-750) and the Middle Horizon (ca. A.D. 750-1000). Using fluctuating asymmetry analysis as a proxy for developmental instability, biological evidence is assessed for differential stress levels incurred by groups occupying the Peruvian south coast. This study found high levels of stress in the Middle Horizon, supporting the hypothesis that populations living in Nasca were unfavorably affected by Wari colonizers. However, stress was found to be highest among the Chakipampa. This is attributed to Wari imperialistic occupation …

Preschoolers’ Physical, Social, And Engineering Play Behaviors: Differences In Gender And Play Environment, Zachary S. Gold

Open Access Theses

This study explored gender differences in the occurrence of 66 preschoolers' (ages 3-to-5; 29 girls, 37 boys) physical, social, and "engineering thinking play" behaviors across three play environments: the traditional playground, the dramatic play area, and an environment in which children played with large, manipulable, loose parts. Previous research has indicated that young children are not engaging in enough physical play to maintain healthy lifestyles. Play may also have benefits for social competency and cognitive development. Observations of children's engagement with a new and engaging play material, Imagination Playground TM blocks, which are designed to foster imaginative and creative constructive …

Quality Assurance And Quality Control Correlations For The Dynamic Cone Penetrometer, Eshan Ganju

Open Access Theses

The Dynamic Cone Penetrometer (DCP) is a device that is used for the estimation of in situ compaction quality of constructed subgrades and embankments. It is a relatively inexpensive, light-weight and easy to use device that measures the dynamic penetration resistance of the compacted soil, from which an estimate of soil strength and stiffness characteristics can be made. Owing to its ease of use, many DOTs in the U.S. have employed the DCP in their compaction quality control procedures, and over the past few decades, extensive research has been carried out on the development of correlations between the results of …

The Use Of Business Intelligence Techniques In Supply Chain Performance, Jue Gu

Open Access Theses

Who likes data? Businesses are always loyal data followers. Companies analyze various forms of data to maintain businesses and identify their current performance in different areas so they can find business opportunities to improve and obtain more market share in advance (Qrunfleh & Tarafdar, 2012). When Big Data comes to businesses, companies who can take advantage of data the best tend to regularly get more business and customers (Waller & Fawcett, 2013). Collecting, analyzing, and demonstrating data could be essential to a single business, a company's supply chain performance and its sustainability. As an intelligent data processing product in terms …

Parental Acceptance Of The Human Papillomavirus Vaccination Among South Asian Immigrants Living In The Midwest Usa, Samina Shams Khan

Open Access Theses

The objective of this investigation was to initiate the first study of Human Papillomavirus (HPV) vaccination acceptance among South Asian parents living in the USA. The primary focus of this study was to identify the knowledge, awareness, acceptance, and those factors that influenced South Asian parents' decision regarding the vaccination of their children against HPV.

This research utilized a cross-sectional study design conducted among South Asian parents in Indianapolis and the Greater Lafayette area of Indiana. The data were collected online using Qualtrics survey software. The survey included six segments containing questions on: socio-demographic information, knowledge and source of information …

Is Maternal Touch Used Referentially?, Rana Abu-Zhaya

Open Access Theses

Early social interactions are highly multimodal and include a wealth of cues (e.g., speech, facial expressions, motion, gestures and touch). Infant-directed speech (IDS) by itself may aid in language development. Touch by itself has been also shown to play an important role in dyadic interactions affecting both the infant and the caregiver. However, little is known about the impact of the combination of these two modes of communication on infant language development. In this thesis, I hypothesize that caregiver touch is provided in synchrony with speech, providing the language-learning infant with cues that may not only help her to find …

Summer 2014, Gla Glq

Georgia Library Quarterly

No abstract provided.