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Articles 2821 - 2850 of 11626

Full-Text Articles in Social and Behavioral Sciences

A Collaborative Approach To Addressing Health Information Literacy Among High School Students, Sharon A. Weiner, Lalatendu Acharya, Kathryn Dilworth, Laura Henzl, Lisa Kirkham, Clare Lutgen, Bethany Mcgowan, David R. Walker May 2016

A Collaborative Approach To Addressing Health Information Literacy Among High School Students, Sharon A. Weiner, Lalatendu Acharya, Kathryn Dilworth, Laura Henzl, Lisa Kirkham, Clare Lutgen, Bethany Mcgowan, David R. Walker

Purdue P-12 Networking Summit & Poster Session

No abstract provided.


Pilot Data Information Literacy Competencies Matrix Scaffolded Across Undergraduate, Graduate And Data Steward Levels, Megan R. Sapp Nelson May 2016

Pilot Data Information Literacy Competencies Matrix Scaffolded Across Undergraduate, Graduate And Data Steward Levels, Megan R. Sapp Nelson

Libraries Faculty and Staff Scholarship and Research

Initial work in identifying data management or data information literacy skills went as far as identifying a list of proposed competencies without further differentiation between those competencies, whether by discipline, complexity, or use case. This article describes a significant innovation upon existing competencies by identifying a scaffolding (built upon existing competencies) that moves students progressively from undergraduate training through post graduate coursework and research to post-doctoral work and into the early years of data stewardship. The scaffolding ties together existing research that has been completed in research data management skills and data information literacy with research into the outcomes that …


Virtual V1sion: A Collaborative Coding Project, Cheryl Olman May 2016

Virtual V1sion: A Collaborative Coding Project, Cheryl Olman

MODVIS Workshop

Virtual V1sion is a new idea for fostering modeling collaborations and data sharing. While still in its infancy, the ultimate goal is a website that hosts repositories for (1) interchangeable model elements, (2) datasets that can be fit/predicted by those models, and (3) educational modules that explain the background for both the models and the datasets. The scope of the modeling is limited to predictions of V1 responses, although not all computations represented by model elements in Virtual V1sion are required to be V1-intrinsic: a goal of the project is to provide a framework in which predictions for modulation by …


A Neural Circuit For Visual Information Spreading, Gregory Francis May 2016

A Neural Circuit For Visual Information Spreading, Gregory Francis

MODVIS Workshop

I describe a neural circuit made of integrate-and-fire neurons that instantiates a mechanism for the spreading of visual information. The circuit is simple and operates at a reasonable time scale with reasonable parameter values. Slight alterations to the anatomy allow the circuit to spread information across surfaces (constrained by the surface boundaries) as for brightness and color effects or across a group/object (as for some attention effects).


Parametrically Constrained Lightness Model Incorporating Edge Classification And Increment-Decrement Neural Response Asymmetries, Michael E. Rudd May 2016

Parametrically Constrained Lightness Model Incorporating Edge Classification And Increment-Decrement Neural Response Asymmetries, Michael E. Rudd

MODVIS Workshop

Lightness matching data from disk-annulus experiments has the form of a parabolic (2nd-order polynomial) function when matches are plotted against annulus luminance on log-log axes. Rudd (2010) has proposed a computational cortical model to account for this fact and has subsequently (Rudd, 2013, 2014, 2015) extended the model to explain data from other lightness paradigms, including staircase-Gelb and luminance gradient illusions (Galmonte, Soranzo, Rudd, & Agostini, 2015). Here, I re-analyze parametric lightness matching data from disk-annulus experiments by Rudd and Zemach (2007) and Rudd (2010) for the purpose of further testing the model and to try to constrain …


Figure-Ground Organization Using 3d Symmetry, Aaron Michaux, Vijai Jayadevan, Edward Delp, Zygmunt Pizlo May 2016

Figure-Ground Organization Using 3d Symmetry, Aaron Michaux, Vijai Jayadevan, Edward Delp, Zygmunt Pizlo

MODVIS Workshop

We present a novel approach to object localization using mirror symmetry as a general purpose and biologically motivated prior. 3D symmetry leads to good segmentation because (i) almost all objects exhibit symmetry, and (ii) configurations of objects are not likely to be symmetric unless they share some additional relationship. Furthermore, psychophysical evidence suggests that the human vision system makes use symmetry in constructing 3D percepts, indicating that symmetry may be important in object localization. No general purpose approach is known for solving 3D symmetry correspondence in 2D camera images, because few invariants exist. Therefore, to test symmetry as a clustering …


A Mixture Model Demonstrates Use Of Distinct Strategies In A Global Motion Direction Task, Lanya Tianhao Cai, Benjamin T. Backus May 2016

A Mixture Model Demonstrates Use Of Distinct Strategies In A Global Motion Direction Task, Lanya Tianhao Cai, Benjamin T. Backus

MODVIS Workshop

Mixture models are well known in cognitive psychology, less so in vision. Are there cases where the data allow clear testing as to whether different strategies are employed in a task? Most psychophysical measurements manipulate a single staircase variable to map out a monotonic increasing function, but if performance is limited by different mechanisms over the range of the variable, classical fitting could be inappropriate. We present a data set and analyses that confirm the presence of two visual strategies addressing the same task, with the choice of strategies depending on the staircase variable. In a net-motion discrimination task, stimuli …


Choice-Dependent Perceptual Biases, Long Luu, Alan A. Stocker May 2016

Choice-Dependent Perceptual Biases, Long Luu, Alan A. Stocker

MODVIS Workshop

The perceived motion direction of a dynamic random dot stimulus is systematically biased when preceded by a motion discrimination task (Jazayeri and Movshon, 2007). The biases were originally thought to occur because subjects mistakenly reuse the neural read-out optimized for the discrimination task when forming the percept (Fig.1a, Task-dependent model). In a series of experiments, we demonstrated that this explanation is incorrect and that the biases actually result from the conditioning of the percept on the preceding discrimination judgment (Fig1.b, Choice-dependent model). Experiment 1 was aimed at replicating the biases for an orientation stimulus. Subjects first indicated whether the stimulus …


An Image-Based Model For Early Visual Processing, Heiko H. Schütt, Felix A. Wichmann May 2016

An Image-Based Model For Early Visual Processing, Heiko H. Schütt, Felix A. Wichmann

MODVIS Workshop

No abstract provided.


A Learning Model For L/M Specificity In Ganglion Cells, Albert Ahumada May 2016

A Learning Model For L/M Specificity In Ganglion Cells, Albert Ahumada

MODVIS Workshop

An unsupervised learning model for developing L/M specific wiring at the ganglion cell level would support the research indicating L/M specific wiring at the ganglion cell level (Reid and Shapley, 2002). Removing the contributions to the surround from cells of the same cone type improves the signal-to-noise ratio of the chromatic signals. The unsupervised learning model used is Hebbian associative learning, which strengthens the surround input connections according to the correlation of the output with the input. Since the surround units of the same cone type as the center are redundant with the center, their weights end up disappearing. This …


Focusing On Selection For Fixation, John K. Tsotsos, Calden Wloka, Yulia Kotseruba May 2016

Focusing On Selection For Fixation, John K. Tsotsos, Calden Wloka, Yulia Kotseruba

MODVIS Workshop

Building on our presentation at MODVIS 2015, we continue in our quest to discover a functional, computational, explanation of the relationship among visual attention, interpretation of visual stimuli, and eye movements, and how these produce visual behavior. Here, we focus on one component, how selection is accomplished for the next fixation. The popularity of saliency map models drives the inference that this is solved; we suggested otherwise at MODVIS 2015. Here, we provide additional empirical and theoretical arguments. We then develop arguments that a cluster of complementary, conspicuity representations drive selection, modulated by task goals and history, leading to a …


Learning Object Representations For Modeling Attention In Real World Scenes, Alex Schwarz, Frederik Beuth, Fred H. Hamker May 2016

Learning Object Representations For Modeling Attention In Real World Scenes, Alex Schwarz, Frederik Beuth, Fred H. Hamker

MODVIS Workshop

Models of visual attention have been rarely used in real world tasks as they have been typically developed for psychophysical setups using simple stimuli. Thus, the question remains how objects must be represented to allow such models an operation in real world scenarios. We have previously presented an attention model capable of operating on real-world scenes (Beuth, F., and Hamker, F. H. 2015, NCNC, which is a successor of Hamker, F. H., 2005, Cerebral Cortex), and show here how its object representations have been learned. We have used a learning rule based on temporal continuity (Földiák, P., 1991, Neural Computation) …


Precise Measurements Of Perceptual Attention Filters For Features, Peng Sun, Charles Chubb, Charles E. Wright, Stefanie Drew, George Sperling May 2016

Precise Measurements Of Perceptual Attention Filters For Features, Peng Sun, Charles Chubb, Charles E. Wright, Stefanie Drew, George Sperling

MODVIS Workshop

No abstract provided.


The Empathy Project: Using A Project-Based Learning Assignment To Increase First-Year College Students’ Comfort With Interdisciplinarity, Micol Hutchison May 2016

The Empathy Project: Using A Project-Based Learning Assignment To Increase First-Year College Students’ Comfort With Interdisciplinarity, Micol Hutchison

Interdisciplinary Journal of Problem-Based Learning

Empathy and interdisciplinarity are both concepts that are current and relevant—across professions, in research, and in academia. This paper describes a large, interdisciplinary, project-based assignment, the Empathy Project, which allows students to delve into and increase comfort and skill with interdisciplinary thinking and collaborative learning, while improving the core college skills of written and oral communication, ethical and quantitative reasoning, and critical thinking. As I revised the assignment based on student feedback and results, I found that group conferences and time in class to work collaboratively were beneficial. Additionally, building increased scaffolding into the assignment, including greater student and group …


Make The Connection: Personal And Institutional Identity In The U.S. Department Of Veterans Affairs Ptsd Campaign, Staci B. Smith May 2016

Make The Connection: Personal And Institutional Identity In The U.S. Department Of Veterans Affairs Ptsd Campaign, Staci B. Smith

Open Access Theses

The common procedure in a health campaign is to use fear and guilt appeals to influence health behaviors among target populations (Mattson & Lam, 2016). The use of identity, identification, and reframing in a health campaign has been relatively under-explored. This study examines invitations to identification and reframing in a specific health campaign, the U.S. Department of Veterans Affairs (VA) “Make the Connection” campaign. With the issues of mental health and post-traumatic stress disorder (PTSD) reaching high levels of attention in media and society, the VA’s Make the Connection campaign encourages military veterans and their families to seek help for …


A Cross-Sectional And Mixed-Method Assessment Of Safety Culture And Safety Climate At A Regional Airline, Micah S. Walala May 2016

A Cross-Sectional And Mixed-Method Assessment Of Safety Culture And Safety Climate At A Regional Airline, Micah S. Walala

Open Access Dissertations

The researcher applied a mixed methods approach to conduct a cross-sectional assessment of the safety culture, safety climate, and SMS at a regional airline in the United States. Data collection techniques were comprised of interview, on-line-survey, and a focus group activity. Participants in the current study were maintenance technicians, flight attendants, dispatchers, pilots, and managers. Results indicated significant differences of perception of safety climate, safety culture, and Safety Management System between the maintenance technicians and flight attendants. The length of time a participant had worked at the subject airline and age of the participant appeared to be significant factors of …


Utilizing The Signaling Theory In Order To Enhance Minority Recruitment In Law Enforcement, Donald B. Terheide May 2016

Utilizing The Signaling Theory In Order To Enhance Minority Recruitment In Law Enforcement, Donald B. Terheide

Open Access Dissertations

Minority recruitment has been an emphasis for law enforcement agencies for decades. These agencies have attempted to recruit minority officers through different venues, including college visits, career fairs, advertising, high school visits, community organizations, and other avenues in an attempt to have their department more representative of the community. However, there has been a limited amount of research on the potential applicants’ perspective concerning how these recruiting efforts have persuaded them, and the messages conveyed to the applicants.

This dissertation has been written utilizing the Signaling Theory, and determining what signals are sent to minority applicants, and how they are …


Zephyr: A Social Psychology-Based Mobile Application For Long-Distance Romantic Partners, Dhiraj Bodicherla May 2016

Zephyr: A Social Psychology-Based Mobile Application For Long-Distance Romantic Partners, Dhiraj Bodicherla

Open Access Theses

Long-distance romantic relationships have become quite common nowadays. With CMC tools advancing day-by-day, their usage among LDRs is proliferating rapidly. Attachment-related anxiety and avoidance can block the ability to enjoy happy relationships. During such situations, remembering happy past moments can be comforting. In this study a mobile chat application that enables LDR couples to reminisce about happy moments was developed. This study primarily focuses on evaluating the usability of this mobile application using survey-based methods. System Usability Scale was considered to discuss the outcome of the study. The overall results provide useful recommendations for further improvements in the design of …


Geopolitics Of The 2016 Australian Defense White Paper And Its Predecessors, Bert Chapman Apr 2016

Geopolitics Of The 2016 Australian Defense White Paper And Its Predecessors, Bert Chapman

Libraries Faculty and Staff Scholarship and Research

Australia released the newest edition of its Defense White Paper, describing Canberra’s current and emerging national security priorities, on February 25, 2016. This continues a tradition of issuing defense white papers since 1976. This work will examine and analyze the contents of this document as well as previous Australian defense white papers, scholarly literature, and political statements assessing their geopolitical significance. It will also examine public input into Australian defense white papers and the emerging role of social media in this public involvement. It concludes by evaluating whether Australia has the political will and economic resources necessary to fulfill its …


Give Us Your Stuff! Streamlining University Records Transfers, Carly Dearborn, Neal Harmeyer Apr 2016

Give Us Your Stuff! Streamlining University Records Transfers, Carly Dearborn, Neal Harmeyer

Libraries Faculty and Staff Presentations

Purdue University Archives and Special Collections seeks out content created by university-affiliated departments, groups, and personnel. The collection development policy of Archives and Special Collections specifically states that documents important to capture university history, administration, or culture will be collected. This presentation outlines the steps and initiatives undertaken by Purdue Archives and Special Collections to implement a rigorous, standardized digital records transfer process.


Quit Playing With Your Watch: Perceptions Of Smartwatch Use, Christopher M. Gaeta Apr 2016

Quit Playing With Your Watch: Perceptions Of Smartwatch Use, Christopher M. Gaeta

Purdue Polytechnic Masters Theses

This study identified perceptions and social norms that may affect smartwatch adoption. Interviews were conducted to identify perceptions of smartwatch use and norms that might affect those perceptions. Smartwatch use was found to activate norms associated with wristwatch use – specifically, smartwatch users’ peers took offense to the users looking at their wristwatches. This study also found that norms prevent the use of smartwatches’ voice controls in public and various perceptions of smartwatch use and ownership.


Sexual Minority Health: A Bibliography And Preliminary Study Of The Book Literature, Sharon A. Weiner Apr 2016

Sexual Minority Health: A Bibliography And Preliminary Study Of The Book Literature, Sharon A. Weiner

Libraries Faculty and Staff Scholarship and Research

The literature on the health of lesbian, gay, bisexual, transgender, and intersexual (LGBT) people appears in many types of resources and disciplines. To begin to address the need for relevant, easily accessible information for LGBT people and health care providers, this study identified popular and scholarly books published in the past 10 years and analyzed topics; number of books published per year; more prolific authors; and primary publishers. The results indicated that a relatively small number of books were published (521) by a wide range of publishers/self-publishers. Most were about mental health, relationships, or family and 24% were personal accounts.


Technical Communication In Place-Making Professions: Exploring The Network Pictures Of Urban Designers, Fernando Sanchez Apr 2016

Technical Communication In Place-Making Professions: Exploring The Network Pictures Of Urban Designers, Fernando Sanchez

Open Access Dissertations

This dissertation addresses how professional writing as a field can pay attention to broader definitions of design in order to help further conversations of spatial justice (the act of helping to promote equity in matters of development in urban spaces). I begin by noting the conversations that have circulated regarding the relationship between urban design and rhetoric, noting that professional writing can help add a unique lens to the conversation. The second chapter provides an overview of how design is discussed in technical communication scholarship. Here, I showcase how most of these discussions regarding research in design have centered on …


Trade And Agriculture Policy Options To Improve The Wheat Subsector In Afghanistan, Ghulam Hazrat Halimi Apr 2016

Trade And Agriculture Policy Options To Improve The Wheat Subsector In Afghanistan, Ghulam Hazrat Halimi

Open Access Dissertations

In Afghanistan wheat availability is important for national food security as it is the key staple food, accounting for over half of calorie intake. The country has imported on average 32% of its wheat consumption over the period 2000-2015, primarily from Pakistan and Kazakhstan. Since domestic production is volatile, consumer well-being depends on access to international markets.

Pakistan, a key supplier of wheat and flour to Afghanistan, has not been a reliable source for Afghanistan to meet its wheat deficit. Pakistan subsidizes and stabilizes its wheat production, and this benefited Afghan consumers before 2008. Pakistan restricted wheat and flour exports …


Measuring Fluency: Temporal Variables And Pausing Patterns In L2 English Speech, Soohwan Park Apr 2016

Measuring Fluency: Temporal Variables And Pausing Patterns In L2 English Speech, Soohwan Park

Open Access Dissertations

This paper examines temporal variables and pausing patterns in L2 English speech to investigate fluency as a measurable component of oral proficiency. Fluency can be defined as ‘speed and smoothness of oral delivery’. We can measure the speed of oral delivery through calculating temporal variables such as speech rate and mean syllables per run where ‘run’ is the vocal chunk between silent pauses. The smoothness of oral delivery can be measured through examination of pausing patterns by classifying the placement of pauses. Pauses may be placed in expected positions such as clause/phrase boundaries or in unexpected positions. Pause placement in …


Self-Regulation To Practice: Incorporating The Strategy To An Early Childhood Special Education Setting, Kathryn L. Szwed Apr 2016

Self-Regulation To Practice: Incorporating The Strategy To An Early Childhood Special Education Setting, Kathryn L. Szwed

Open Access Dissertations

Preschool students who display social emotional deficits pose challenging issues for families, caregivers and teachers who educate them. In this study, the effectiveness of an assistive technology based treatment package consisting of video self-modeling and behavior management software was investigated to determine if its combined use would result in increased student self-regulation skills. Using a multiple baseline design, three students used the treatment package to increase self-regulation skills. During the investigation, the accuracy to self-identify behaviors, the documentation of desired and undesired behaviors and the overall impact of the treatment package was studied. Interobserver agreement (IOA) was used to determine …


Feelings Of Doing Good For Myself Or Others: Discussing Effects Of Self-Conscious Emotions On Sustainable Consumption, Chi-Cheng Luan Apr 2016

Feelings Of Doing Good For Myself Or Others: Discussing Effects Of Self-Conscious Emotions On Sustainable Consumption, Chi-Cheng Luan

Open Access Dissertations

Consumers have increasing interests in sustainable products, but the actual purchase rate is relatively low. To find the reasons of this gap, previous studies focus primarily on cognitive factors of behavioral change based on the theory of planned behavior. Little research, however, discusses such a sustainable consumption issue from emotional aspects. Thus, this research proposed that self-conscious emotions play an essential role of sustainable consumption behavior, and such emotions are driven from private and public self-consciousness. Study 1 examined participants’ general evaluations toward two emotions and sustainable consumption behaviors. The results showed that empathic concern had a significantly positive effect …


Regulating Belongingness Needs: Regulatory Focus And Responses To Social Exclusion, Katherine E. Adams Apr 2016

Regulating Belongingness Needs: Regulatory Focus And Responses To Social Exclusion, Katherine E. Adams

Open Access Theses

The current project examined the effect of social exclusion on regulatory focus motivations (promotion and prevention focus). Building on previous work, I posited that whether exclusion activates a more promotion or prevention focus depends on the person’s initial standing with the group (i.e., initial member vs. non-member). Additionally, I hypothesized that regulatory focus motivations should influence excluded individuals’ subsequent social reconnection efforts. In two studies, participants were socially excluded after either being included or not as an initial member of the excluding group; in a first study, participants also had the opportunity to reconnect with a new social partner. …


Innovation As Everyday Action: A Case Study Of Organizational Discourse And The Local Meaning Of Innovation, Jennifer C. Batra Apr 2016

Innovation As Everyday Action: A Case Study Of Organizational Discourse And The Local Meaning Of Innovation, Jennifer C. Batra

Open Access Theses

This study describes and explicates the nuanced nature of commonly adopted buzzwords such as innovation by analyzing how innovation is defined and embedded structurally within a single organization. Working to uncover how the individual construction of a local definition of innovation within the global context of a quasi-academic organization changes as organizational priorities and practices evolve over time, I present the varied framings of innovation at the micro, meso, and macro levels, through two research phases (a) the definition phase and (b) the practice phase over the course of one year.

This thesis project is situated within a single Mid-Western …


A History Of African And South American Basins, Rebecca A. Bobick Apr 2016

A History Of African And South American Basins, Rebecca A. Bobick

Open Access Theses

As hydrocarbon development in Africa and South America continues to expand, understanding the geologic evolution as well as the geologic symmetry of each of the continent's coastal basins grows increasingly important. Unfortunately, there's currently no comprehensive database that contains the stratigraphic record, depositional environments, and tectonic evolution available for either Africa or South America. Therefore, the goal of my research is to create an extensive datapack and guide booklet for Africa's major sedimentary basins, complete the South America datapack that's currently being constructed, and correlate the western African conjugate basins to the eastern South American conjugate basins. To accomplish this, …