Digital Commons Network^™

William Clark, The Fur Trade, And Indian Affairs, Jay H. Buckley

Faculty Publications

There are so many things that are admirable about William Clark. Sometimes I shudder to think what the great expedition would have been if Clark had declined Lewis’ offer to share in what Clark called “the dangers, difficulties, and fatigues” of the journey. Without wishing to denigrate the possible contributions of Moses Hooke, I believe that the expedition would have been a much less successful enterprise if Clark had remained at the Falls of the Ohio when Lewis ventured into the unknown in 1803.

Honoring Navajo Traditions: Franc Newcomb's Time Among The Navajo, Roy R. Behrens

Faculty Publications

No abstract provided.

Establishing The Foundations To Measure Organizational Agility For Military Organizations, Jeremy R. Geiger, John J. Elshaw, David R. Jacques

Faculty Publications

There is an ongoing demand for organizations to become more agile in order to prosper amongst their competitors. Many military organizations have declared a renewed focus towards organizational agility. The goal of this research is to isolate the variables needed to measure organizational agility (OA) in military organizations, allowing for the future development of a suitable method to measure OA without the need to interact with outside organizations. This article begins by providing a suitable and formal definition of organizational agility by exploring and analyzing relevant scholarly literature on the subject. Related terms, such as organizational resiliency, flexibility, robustness, versatility, …

Framing The Second Amendment: Gun Rights, Civil Rights And Civil Liberties, Timothy Zick

Faculty Publications

Gun rights proponents and gun control advocates have devoted significant energy to framing the constitutional right to keep and bear arms. In constitutional discourse, advocates and commentators have referred to the Second Amendment as a "collective, ""civic republican," "individual," and 'fundamental" right. Gun rights advocates have defended the right to keep and bear arms on "law and order" grounds, while gun control proponents have urged regulation based on "public health, " "human rights, " and other concerns. These frames and concepts have significantly influenced how the right to keep and bear arms has been debated, interpreted, and enforced. This Article …

Simulating Hydrological Connectivity And Water Age Within A Coastal Deltaic Floodplain Of The Mississippi River Delta, Alexandra Christensen, Robert R. Twilley, Clinton S. Willson, Edward Castañeda-Moya

Faculty Publications

Located at the mouth of large rivers, coastal deltaic floodplains are important ecosystems for trapping sediment and removing excess nitrogen introduced to the river through agricultural and urban runoff. Hydrological connectivity (the percent of river channel water interacting with floodplain wetlands), water age (the time elapsed since water entered the system via the main river channel) and water temperature have strong impacts on the biogeochemical processes controlling the fate of sediment and nutrients at continental margins. A Delft3D hydrodynamic model was used to explore the role of river and tide forcings, hydrogeomorphology, and vegetation roughness on hydrological connectivity, water age, …

Building Capacity In Dissemination And Implementation Science: A Systematic Review Of The Academic Literature On Teaching And Training Initiatives, Rachel E. Davis, Danielle D'Lima

Faculty Publications

BACKGROUND: The field of dissemination and implementation (D&I) science has grown significantly over recent years. Alongside this, an increased demand for training in D&I from researchers and implementers has been seen. Research describing and evaluating D&I training opportunities, referred to here as 'capacity building initiatives' (CBIs), can help provide an understanding of different methods of training as well as training successes and challenges. However, to gain a more detailed understanding of the evidence-base and how D&I CBIs are being reported in publications, a field-wide examination of the academic literature is required. METHODS: Systematic review to identify the type and range …

Using Reactive Dissipative Particle Dynamics To Understand Local Shape Manipulation Of Polymer Vesicles, Qinyu Zhu, Timothy R. Scott, Douglas R. Tree

Faculty Publications

Biological cells have long been of interest to researchers due to their capacity to actively control their shape. Accordingly, there is significant interest in generating simplified synthetic protocells that can alter their shape based on an externally or internally generated stimulus. To date, most progress has been made towards controlling the global shape of a protocell, whereas less is known about generating a local shape change. Here, we seek to better understand the possible mechanisms for producing local morphological changes in a popular protocell system, the block copolymer vesicle. Accordingly, we have combined Dissipative Particle Dynamics (DPD) and the Split …

Association Between Dietary Inflammatory Index And Type 2 Diabetes Mellitus In Xinjiang Uyghur Autonomous Region, China, Wenhui Fu, Hualian Pei, Nitin Shivaooa, James R. Hébert, Tao Luo, Tian Tian, Dilibaier Alimu, Zewen Zhang, Jianghong Dai

Faculty Publications

Background Diet and inflammation have both been studied in relation to type 2 diabetes mellitus (T2DM). The aim of this cross-sectional study was to examine the association between the Dietary Inflammatory Index (DII®) and T2DM. Methods Subjects were adults enrolled in the baseline study of the Xinjiang multi-ethnic natural population cohort and health follow-up study from January to May 2019. The study involved 5,105 subjects (58.7% men) between 35 and 74 years of age. The DII score was calculated from a data obtained via a food frequency questionnaire consisting of 127 food items. Results Logistic regression analyses were used to …

Association Of Patient-Centered Medical Home Designation And Quality Indicators Within Hrsa-Funded Community Health Center Delivery Sites, Nathaniel Bell, Rebecca Wilkerson, Kathy Mayfield-Smith, Ana Lòpez-De Fede

Faculty Publications

BACKGROUND: Patient-Centered Medical Home (PCMH) adoption is an important strategy to help improve primary care quality within Health Resources and Service Administration (HRSA) community health centers (CHC), but evidence of its effect thus far remains mixed. A limitation of previous evaluations has been the inability to account for the proportion of CHC delivery sites that are designated medical homes.

METHODS: Retrospective cross-sectional study using HRSA Uniform Data System (UDS) and certification files from the National Committee for Quality Assurance (NCQA) and the Joint Commission (JC). Datasets were linked through geocoding and an approximate string-matching algorithm. Predicted probability scores were …

Why Parents Say No To Having Their Children Vaccinated Against Measles: Social Determinants Of Parental Perceptions To Vaccine Hesitancy, M. Lelinneth B. Novilla, Michael C. Goates, Mallory Showalter, Lynneth Kirsten B. Novilla, Tyler Leffler, Russell B. Doria, Michael T. Dang, Katelyn Aldridge

Faculty Publications

Background: Although national and state immunization coverage rates are high, the resurgence of measles points to local pockets of under-vaccination that correspond with higher non-medical exemptions and lower parental confidence on vaccines. The reported geographic clustering of vaccine hesitancy, particularly against MMR, points to social drivers that shape parental perceptions and decisions on immunization.

Objectives. To analyze: (1) why parents delay or refuse vaccination, specifically MMR; (2) social context of vaccine hesitancy and perceived reliable sources of vaccine information between vaccine-hesitant and vaccine-compliant parents/guardians; (3) role of families in countering vaccine hesitancy; (4) strategies at the public health, primary care, …

Mechanisms Of Asymmetric Membrane Formation In Nonsolvent-Induced Phase Separation, Jan Ulric Garcia, Tatsuhiro Iwama, Eva Y. Chan, Douglas R. Tree, Kris T. Delaney, Glenn H. Fredrickson

Faculty Publications

We report the first simulations of nonsolvent-induced phase separation (NIPS) that predict membrane microstructures with graded asymmetric pore size distribution. In NIPS, a polymer solution film is immersed in a nonsolvent bath, enriching the film in nonsolvent, and leading to phase separation that forms a solid polymer-rich membrane matrix and polymer-poor membrane pores. We demonstrate how mass-transfer-induced spinodal decomposition, thermal fluctuations, and glass-transition dynamics—implemented with mobility contrast between the polymer-rich and polymer-poor phases—are essential to the formation of asymmetric membrane microstructures. Specifically, we show that the competition between the propagation of the phase-separation and glass-transition fronts determines the degree of …

The Role Of Sediment-Induced Light Attenuation On Primary Production During Hurricane Gustav (2008), Zhengchen Zang, Z. George Xue, Kehui Xu, Samuel J. Bentley, Qin Chen, Eurico J. D'Sa, Le Zhang, Yanda Ou

Faculty Publications

We introduced a sediment-induced light attenuation algorithm into a biogeochemical model of the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system. A fully coupled ocean-atmospheric-sediment-biogeochemical simulation was carried out to assess the impact of sediment-induced light attenuation on primary production in the northern Gulf of Mexico during the passage of Hurricane Gustav in 2008. When compared with model results without sediment-induced light attenuation, our new model showed a better agreement with satellite data on both the magnitude of nearshore chlorophyll concentration and the spatial distribution of offshore bloom. When Hurricane Gustav approached, resuspended sediment shifted the inner shelf ecosystem from a nutrient-limited …

The Role Of Sediment-Induced Light Attenuation On Primary Production During Hurricane Gustav (2008), Zhengchen Zang, Z. George Xue, Kehui Xu, Samuel J. Bentley, Qin Chen, Eurico J. D'Sa, Le Zhang, Yanda Ou

Faculty Publications

© Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. We introduced a sediment-induced light attenuation algorithm into a biogeochemical model of the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system. A fully coupled ocean-atmospheric- sediment-biogeochemical simulation was carried out to assess the impact of sediment-induced light attenuation on primary production in the northern Gulf of Mexico during the passage of Hurricane Gustav in 2008. When compared with model results without sediment-induced light attenuation, our new model showed a better agreement with satellite data on both the magnitude of nearshore chlorophyll concentration and the spatial distribution of offshore …

The Protective Role Of Couple Communication In Moderating Negative Associations Between Financial Stress And Sexual Outcomes For Newlyweds, Jocelyn S. Wikle, Chelom E. Leavitt, Jeremy B. Yorgason, Jeffrey P. Dew, Heather M. Johnson

Faculty Publications

This study longitudinally examined the sexual costs of economic distress in newlywed couple relationships. Family stress theory posits an association between economic pressure and family relationships. The ability of financial strain to contaminate non-financial aspects of a marriage is troubling considering that many newlyweds report difficulty with financial adjustments after marriage. Positive communication may be a skill that enables young couples to alleviate economic pressure, and the study evaluated the moderating roles of financial communication, sexual communication, and relational communication. Utilizing an actor-partner interdependence moderation model, hypotheses were tested using dyadic data from 2044 couples from a nationally representative sample …

Parental Concerns And Uptake Of Childhood Vaccines In Rural Tanzania – A Mixed Methods Study, Lavanya Vasudevan, Joy Noel Baumgartner, Sara Moses, Esther Ngadaya, Sayoki Godfrey Mfinanga, Jan Ostermann

Faculty Publications

Background

Vaccine hesitancy has been recognized as an important barrier to timely vaccinations around the world, including in sub-Saharan Africa. In Tanzania, 1 in 4 children is not fully vaccinated. The objective of this mixed methods study was to describe and contextualize parental concerns towards vaccines in Tanzania.

Methods

Between 2016 and 2017, we conducted a cross-sectional survey (n = 134) and four focus group discussions (FGDs, n = 38) with mothers of children under 2 years of age residing in Mtwara region in Southern Tanzania. The survey and FGDs assessed vaccination knowledge and concerns and barriers to timely vaccinations. …

Relational Turbulence And Perceptions Of Social Network Support For Parents Of Children With Autism Spectrum Disorder, Kellie St Cyr Brisini, Denise Haunani Solomon

Faculty Publications

A wealth of research indicates that social support positively influences parental and family well-being in families of children with disabilities; however, not all supportive efforts are positively received. This study employs the framework of relational turbulence theory to examine evaluations of social support from social network members among parents of children with Autism Spectrum Disorder (ASD). In a cross-sectional survey, ninety-four parents of children with ASD (47 heterosexual couples) reported a social network member to whom they disclose issues regarding their marriage and evaluated that network member’s support for their marriage and their parenting. Results of actor-only interdependence modeling demonstrated …

Use Of Altmetrics To Analyze Scholarworks In Natural Resource Management, David L. Kulhavy, R Philip Reynolds, Daniel R. Unger, Matthew W. Mcbroom, I-Kuai Hung, Yanli Zhang

Faculty Publications

Digital preservation of library materials has increased the need for methods to access the documents and contents maintained in digital archives. The use of altmetrics to quantify the impact of scholarly works, including PlumX, is increasing readership by listing articles in reference services. The outreach from the digital repository ScholarWorks at Stephen F. Austin State University (SFASU) highlights the impact within the natural resources community from Digital Commons, Forest Sciences Commons; and from the Natural Products Chemistry and Pharmacognosy Commons. The use of PlumX altmetrics was examined to evaluate usage, impact, and digital audience downloads for the Arthur Temple College …

Generalized Imperfect D2d Associations In Spectrum-Shared Cellular Networks Under Transmit Power And Interference Constraints, Redha M. Radaydeh, Fawaz S. Al-Qahtani, Abdulkadir Celik, Khalid A. Qaraqe

Faculty Publications

This paper studies imperfect underlay device-to-device (D2D) association in spectrum-shared cellular networks. It addresses important system and design interference constraints, processing load limitations and transmit power constraints at D2D terminals. The paper proposes decentralized schemes for D2D communication between D2D terminals when downlink channel resources can be reused in the D2D network. The D2D transmitters are characterized considering their processing load limitation and allocated transmit power constraints. Moreover, the downlink channels that can be reused in the D2D network are quantified while meeting interference constraints imposed by the primary cellular network. Two schemes to identify reusable channels, which vary in …

Promoting Reading Achievement In Children With Developmental Language Disorders: What Can We Learn From Research On Specific Language Impairment And Dyslexia?, Suzanne M. Adlof

Faculty Publications

Purpose Specific language impairment (SLI; see also developmental language disorder) and dyslexia are separate, yet frequently co-occurring disorders that confer risks to reading comprehension and academic achievement. Until recently, most studies of one disorder had little consideration of the other, and each disorder was addressed by different practitioners. However, understanding how the two disorders relate to each other is important for advancing theories about each disorder and improving reading comprehension and academic achievement. The purpose of this clinical focus article is to integrate research on SLI and dyslexia as well as advocate for the consideration of comorbidities in future research …

Distribution Of Aromatase In The Brain Of The African Cichlid Fish Astatotilapia Burtoni: Aromatase Expression, But Not Estrogen Receptors, Varies With Female Reproductive-State, Karen P. Maruska, Julie M. Butler, Chase Anselmo, Ganga Tandukar

Faculty Publications

© 2020 Wiley Periodicals, Inc. Estrogen synthesis and signaling in the brains of vertebrates has pleotropic effects ranging from neurogenesis to modulation of behaviors. The majority of studies on brain-derived estrogens focus on males, but estrogenic signaling in females likely plays important roles in regulation of reproductive cycling and social behaviors. We used females of the mouth brooding African cichlid fish, Astatotilapia burtoni, to test for reproductive state-dependent changes in estrogenic signaling capacity within microdissected brain nuclei that are important for social behaviors. Expression levels of the rate-limiting enzyme aromatase, but not estrogen receptors, measured by qPCR changes across the …

Neural Activation Patterns Associated With Maternal Mouthbrooding And Energetic State In An African Cichlid Fish, Karen P. Maruska, Julie M. Butler, Karen E. Field, Christopher Forester, Ashley Augustus

Faculty Publications

© 2020 IBRO Parental care is widespread in the animal kingdom, but for many species, provisioning energetic resources must be balanced with trade-offs between self-promoting and offspring-promoting behaviors. However, little is known about the neural mechanisms underlying these motivational decisions. Mouthbrooding is an extreme form of parental care most common in fishes that provides an ideal opportunity to examine which brain regions are involved in parenting and energetics. The African cichlid fish Astatotilapia burtoni is a maternal mouthbrooder in which females hold developing young inside their mouths for 2 weeks. This brood care makes feeding impossible, so females undergo obligatory …

Framework For A Community Health Observing System For The Gulf Of Mexico Region: Preparing For Future Disasters, Paul Sandifer, Landon Knapp, Maureen Lichtveld, Ruth Manley, David Abramson, Rex Caffey, David Cochran, Tracy Collier, Kristie Ebi, Lawrence Engel, John Farrington, Melissa Finucane, Christine Hale, David Halpern, Emily Harville, Leslie Hart, Yulin Hswen, Barbara Kirkpatrick, Bruce Mcewen, Glenn Morris, Raymond Orbach, Lawrence Palinkas, Melissa Partyka, Dwayne Porter, Aric A. Prather, Teresa Rowles, Geoffrey Scott, Teresa Seeman, Helena Solo-Gabriele, Erik Svendsen, Terry Tincher, Juli Trtanj, Ann Hayward Walker

Faculty Publications

© Copyright © 2020 Sandifer, Knapp, Lichtveld, Manley, Abramson, Caffey, Cochran, Collier, Ebi, Engel, Farrington, Finucane, Hale, Halpern, Harville, Hart, Hswen, Kirkpatrick, McEwen, Morris, Orbach, Palinkas, Partyka, Porter, Prather, Rowles, Scott, Seeman, Solo-Gabriele, Svendsen, Tincher, Trtanj, Walker, Yehuda, Yip, Yoskowitz and Singer. The Gulf of Mexico (GoM) region is prone to disasters, including recurrent oil spills, hurricanes, floods, industrial accidents, harmful algal blooms, and the current COVID-19 pandemic. The GoM and other regions of the U.S. lack sufficient baseline health information to identify, attribute, mitigate, and facilitate prevention of major health effects of disasters. Developing capacity to assess adverse human …

Language Matters: Examining The Language-Related Needs And Wants Of Writers In A First-Year University Writing Course, Grant Eckstein, Dana Ferris

Faculty Publications

All writing involves complex linguistic knowledge and thoughtful decision-making. But where do students acquire the linguistic tools needed to write effectively? Many students come from diverse backgrounds and may need additional support and/or instruction in language and grammar. In order to better understand this situation, we conducted a qualitative multiple-case study to examine the experiences of 12 students in a first-year university-level composition course to understand the extent of their diverse learning backgrounds and language needs and expectations. We synthesized information from surveys, interviews, and written texts into narratives about each student’s attitudes toward language and writing and also examined …

Tunable Dual Plasmon-Induced Transparency Based On A Monolayer Graphene Metamaterial And Its Terahertz Sensing Performance, Jiahao Ge, Chenglong You, He Feng, Xiaoman Li, Mei Wang, Lifeng Dong, Georgios Veronis, Maojin Yun

Faculty Publications

In this paper, tunable dual plasmon-induced transparency (PIT) is achieved by using a monolayer graphene metamaterial in the terahertz region, which consists of two graphene strips of different sizes and a graphene ring. As the dual PIT effect is induced by the destructive interference between the two quasi-dark modes and the bright mode, we propose a four-level plasmonic system based on the linearly coupled Lorentzian oscillators to explain the mechanism behind the dual PIT. It is proved that the theoretical results agree well with the simulation results. Most importantly, the sensing properties of the designed device have been investigated in …

Views Of The Highway: Infrastructure Reality, Perceptions, And Politics, Linda M. Fogg, Lawrence C. Hamilton, Erin S. Bell

Faculty Publications

Transportation infrastructure such as highways and bridges requires upgrades and maintenance. In many U.S. regions, these requirements have surpassed current funding, so new solutions are needed. One obvious though imperfect source is gasoline taxes, but raising these is politically risky, regardless of need. To illuminate this conflict, we analyze data from four random-sample telephone surveys (2016–2018, n = 2,035) that asked residents in the U.S. state of New Hampshire about their perceptions of highway and bridge conditions, and support for gas tax increases. About one third of the respondents counterfactually reported that highway and bridge conditions had improved compared with …

Electronic Self‐Reporting: Angler Attitudes And Behaviors In The Recreational Red Snapper Fishery, Stephen R. Midway, Jason Adriance, Patrick Banks, Sepp Haukebo, Rex Caffey

Faculty Publications

No abstract provided.

Using The World Café Methodology To Support Community-Centric Research And Practice In Library And Information Science, Vanessa Kitzie, Jocelyn Pettigrew, Travis L. Wagner, Nick Vera

Faculty Publications

The World Café (TWC) methodology is a form of action research that develops collective knowledge among individuals and communities to address shared problems. TWC can complement LIS research and practice that is increasingly participatory and community centric. The potentials and pitfalls for TWC are illustrated by ongoing research examining public library service to LGBTQIA+ communities for health information. The authors used TWC in a community forum between LGBTQIA+ community leaders and librarians/paraprofessionals in [name removed for blind review]. Per TWC conventions, participants engaged in day-long rotating café-style table conversations that encouraged new ideas and collective dialog. Discussion centered on two …

It Starts At Home: Infusing Radical Empathy Into Graduate Education, Nicole A. Cooke, Kellee E. Warren, Molly Brown, Athena Jackson

Faculty Publications

This interview features a conversation between a library and information science educator (Cooke) and three archival and special collections professionals with varying levels of experience in the field (Warren, Brown, and Jackson). Among the goals of this frank conversation is to highlight the lived experiences of practicing archivists and educators and discuss why it is becoming increasingly important to talk about empathy, diversity, equity, and inclusion in greater context. As part of that context, we must discuss the need to continuously infuse these values into graduate education, professional development, research, writing, and peer mentoring. Espousing and implementing an ethics of …

Short-Term Intersection Traffic Flow Forecasting, Wenrui Qu, Jinhong Li, Lu Yang, Delin Li, Shasha Liu, Qun Zhao, Yi Qi

Faculty Publications

The intersection is a bottleneck in an urban roadway network. As traffic demand increases, there is a growing congestion problem at urban intersections. Short-term traffic flow forecasting is crucial for advanced trip planning and traffic management. However, there are only a handful of existing models for forecasting intersection traffic flow. In addition, previous short-term traffic flow forecasting models usually were for predicting roadway conditions in a very short period, such as one minute or five minutes, which is often too late given that a driver may well be approaching the bottleneck already. Being able to accurately predict traffic congestions in …

The State Of Research In Veterans Studies: A Systematic Literature Review, Leonard Lira, Janani Chandrasekar

Faculty Publications

New areas of research on veterans are emerging as the field of veterans studies develops and grows. Yet gaps remain in interdisciplinary research efforts on veterans. The research available across disciplines is still too fragmented to coalesce into a full-fledged field of veteran studies, as other categorical, area, and identity fields of study have done so. By surveying research literature of multiple disciplines used in the curricula of higher education-level veteran study programs, this article presents a thematic and integrative review of the state of research contributing to the growing field of veterans studies. Discussion follows about research emerging from …