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151 Matching Results
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Effects of UV Stabilizers on Polypropylene Outdoors
This article looks at hindered amine light stabilizers (HALSs) and nano ZnO were used to stabilize polypropylene (PP) film-based formulations that were exposed to ultraviolet (UV) light for different lengths of time, simulating the harsh outdoor weather of Dallas, Texas, USA. UV doses applied in our laboratory are 121 times larger than the UV dose provided by the sunlight in Texas. 15 different compositions were studied. The combination of HALSs and nano-ZnO stabilizers makes the PP films harder—which is important for some PP applications, such as toy manufacturing.
Date:
April 1, 2020
Creator:
Brostow, Witold, 1934-; Lu, Xinyao; Gencel, Osman & Osmanson, Allison T.
Object Type:
Article
System:
The UNT Digital Library
Accessing Physical Activity and Health Disparities among Underserved Hispanic Children: The Role of Actual and Perceived Motor Competence
Paper describes study examining the relationship of actual motor competence and perceived motor competence with PA participation and health-related quality of life (HRQoL) among underserved Hispanic children who were born in the U.S.
Date:
April 26, 2020
Creator:
Zhang, Tao; Lee, Joonyoung; Chu, Tsz Lun; Chen, Changzhou & Gu, Xiangli
Object Type:
Article
System:
The UNT Digital Library
Underlying Ossification Phenotype in a Murine Model of Metastatic Synovial Sarcoma
This article presents the analysis of genetic mouse models of synovial sarcoma to determine the extent of ossification in the tumors and its relationship with morbidity. The authors noted higher ossification within their metastatic mouse model of synovial sarcoma. Their conclusion is that both metastasis and ossification are dependent on time, but that they are independent of one another.
Date:
April 10, 2020
Creator:
Kirkham, Matthew; Kalivas, Austen; Fatema, Kaniz; Luelling, Sarah; Dubansky, Brooke H.; Dubansky, Benjamin et al.
Object Type:
Article
System:
The UNT Digital Library
A New Multiteam System (MTS) Effectiveness Model
The article focuses on a systematic review of current team effectiveness frameworks and models. A narrative-based method for theorizing was utilized to develop a new MTS team effectiveness framework. This research contributes to the MTS literature by providing a new formula for team effectiveness at both the team level (team effectiveness formula) and the MTS level (MTS team effectiveness formula).
Date:
April 19, 2020
Creator:
Turner, John R.; Baker, Rose M.; Ali, Zain & Thurlow, Nigel
Object Type:
Article
System:
The UNT Digital Library
Dynamic Shear Deformation of a Precipitation Hardened Al0.7CoCrFeNi Eutectic High-Entropy Alloy Using Hat-Shaped Specimen Geometry
The article reports on the shear deformation of a eutectic structured HEA and effect of precipitation on shear deformation, particularly Al₀.₇CoCrFeNi high-entropy alloy (HEA). A split-Hopkinson pressure bar (SHPB) was used to compress the hat-shaped specimens to study the local dynamic shear response of the alloy. The change in the width of shear bands with respect to precipitation and deformation rates was studied. The precipitation of L1₂ phase did not delay the formation of adiabatic shear bands (ASB) or affect the ASB width significantly, however, the deformed region around ASB, consisting of high density of twins in fcc phase, was reduced from 80 µm to 20 µm in the stronger precipitation strengthened condition.
Date:
April 10, 2020
Creator:
Gwalani, Bharat; Wang, Tianhao; Jagetia, Abhinav; Gangireddy, Sindhura; Muskeri, Saideep; Mukherjee, Sundeep et al.
Object Type:
Article
System:
The UNT Digital Library
Socialization on Sustainable Networks: The Case of eBay Green's Facebook
Article explores consumer socialization of sustainable networks based on the theory of consumer socialization, using eBay Green's Facebook presence as a case study.
Date:
April 24, 2020
Creator:
Kim, Haejung; Oh, Kyung Wha & Jung, Hye Jung
Object Type:
Article
System:
The UNT Digital Library
Formula-Driven, Size-Tunable Synthesis of PMMA Nanoparticles by Varying Surfactant Concentration
Paper presents a streamlined, reproducible synthetic method for the production of size-tunable poly(methyl methacrylate) (PMMA) nanoparticles (PMMANPs) and amine-functionalized block-copolymer PMMANPs (H2N-PMMANPs) by varying subcritical concentrations of sodium dodecyl sulfate (SDS).
Date:
April 13, 2020
Creator:
Kamras, Bryan L.; Mirzanasiri, Nooshin; Korir, Daniel K.; Mandal, Sujata; Hariharakumar, Shreya L.; Petros, Robby A. et al.
Object Type:
Article
System:
The UNT Digital Library
Generation of over 1000 Diffraction Spots from 2D Graded Photonic Super-Crystals
Discusses a project in which researchers were able to generate over 1000 diffraction spots from a graded photonic super-crystal with a unit super-cell size of 12a Ă— 12a where a is the lattice constant and hole radii are gradually changed in dual directions.
Date:
April 10, 2020
Creator:
Hassan, Safaa; Jiang, Yan; Alnasser, Khadijah; Hurley, Noah; Zhang, Hualiang; Philipose, Usha et al.
Object Type:
Article
System:
The UNT Digital Library
Impact of Nutrient Intake on Hydration Biomarkers Following Exercise and Rehydration Using a Clustering-Based Approach
This article investigates the impact of nutrient intake on hydration biomarkers in cyclists before and after a 161 km ride, including one hour after a 650 mL water bolus consumed post-ride. Most predictor groups showed significant association with at least one hydration biomarker: (1) Glycemic Load + Carbohydrates + Sodium, (2) Protein + Fat + Zinc, (3) Magnesium + Calcium, (4) Pinitol, (5) Caffeine, (6) Fiber + Betaine, and (7) Water; potassium + three polyols, and mannitol + sorbitol showed no significant associations with any hydration biomarker. The authors conclude that in a real-life scenario, some nutrients may serve as mediators of body water, and urine-specific hydration biomarkers may be more responsive to nutrient intake than measures derived from plasma or body mass.
Date:
April 30, 2020
Creator:
Muñoz, Colleen X.; Johnson, Evan C.; Kunces, Laura J.; McKenzie, Amy L.; Wininger, Michael; Butts, Cory L. et al.
Object Type:
Article
System:
The UNT Digital Library
Psychosocial Mechanism of Adolescents’ Depression: A Dose-Response Relation with Physical Activity
The article highlights a study aimed (1) to examine the relations between different doses of physical activity (PA), light PA (LPA), moderate PA (MPA), and vigorous PA (VPA), academic self-efficacy, and depression among adolescents, and (2) to investigate the direct and indirect relations of various doses of PA to depression through academic self-efficacy among middle school adolescents. Findings of this study indicated that academic self-efficacy regulates adolescents’ depression. Tailoring different intensities of PA benefits adolescents’ academic self-efficacy by framing the positive and supportive environment in schools, which can potentially reduce the prevalence of depression during adolescence.
Date:
April 24, 2020
Creator:
Xiang, Man; Gu, Xiangli; Zhang, Xiaoxia; Moss, Samantha; Huang, Chaoqun; Nelson, Larry Paul et al.
Object Type:
Article
System:
The UNT Digital Library
The Oxidation-Induced Autofluorescence Hypothesis: Red Edge Excitation and Implications for Metabolic Imaging
Research study explores how oxidation products of organic components (lipids, proteins, amino acids, etc.) can serve as the molecular source of red and near-infrared excited autofluorescence for biomedical diagnostics.
Date:
April 17, 2020
Creator:
Semenov, Alexey N.; Yakimov, Boris P.; Rubekina, Anna A.; Gorin, Dmitry A.; Drachev, Vladimir P.; Zarubin, Mikhail P. et al.
Object Type:
Article
System:
The UNT Digital Library
The Relationships between Supply Chain Capability and Shareholder Value Using Financial Performance Indicators
Paper examines which financial performance indicators (FPIs) evaluate the level of supply chain capability (SCC) that explicitly touches all of the business functions and processes within and beyond the company.
Date:
April 13, 2020
Creator:
Hong, Seock-Jin & Najmi, Hossein
Object Type:
Article
System:
The UNT Digital Library
Association of Home Food Availability with Prediabetes and Diabetes among Adults in the United States
This article examined associations of home food availabilities with prediabetes and diabetes among 8929 adults (20–70 years) participating in 2007–2010 National Health and Nutrition Examination Surveys. The results show prediabetes participants had lower availability of healthy foods and higher availability of unhealthy foods, suggesting the need to improve healthy food availability at home for this population.
Date:
April 25, 2020
Creator:
McAtee, Jenniffer; Tao, Meng-Hua; King, Christian & Chai, Weiwen
Object Type:
Article
System:
The UNT Digital Library
Modeling and Characterization of Scaling Factor of Flexible Spiral Coils for Wirelessly Powered Wearable Sensors
This article presents the design, modeling, and experimental characterization of flexible square-shaped spiral coils with different scaling factors for WPT systems. The effects of coil scaling factor on inductance, capacitance, resistance, and the quality factor (Q-factor) are modeled, simulated, and experimentally validated for the case of flexible planar coils. This article also presents the effect of skin contact with the flexible coil in terms of the power transfer efficiency (PTE) to validate the suitability as a wearable sensor.
Date:
April 17, 2020
Creator:
Biswas, Dipon K.; Sinclair, Melissa; Le, Tien; Pullano, Salvatore Andrea; Fiorillo, Antonino S. & Mahbub, Ifana
Object Type:
Article
System:
The UNT Digital Library
High-Throughput Computational Search for Half-Metallic Oxides
The article describes a high-throughput computational search for half-metallic compounds. The analysis of calculated electronic properties of thousands of materials from the inorganic crystal structure database allowed the authors to identify potential half metals. They found over two-hundred strong half-metallic oxides; several of them have never been reported before.
Date:
April 25, 2020
Creator:
Liyanage, Laalitha S. I.; Slawińska, Jagoda; Gopal, Priya; Curtarolo, Stefano; Fornari, Marco & Buongiorno Nardelli, Marco
Object Type:
Article
System:
The UNT Digital Library
Topological View of Flows Inside the BOLD Spontaneous Activity of the Human Brain
Article describes study which found that persistent, recurring blood oxygen level dependent (BOLD) signals in triangulated rs-fMRI videoframes display previously undetected topological findings, i.e., vortex structures that cover brain activated regions.
Date:
April 22, 2020
Creator:
Don, Arjuna P. H.; Peters, James F.; Ramanna, Sheela & Tozzi, Arturo
Object Type:
Article
System:
The UNT Digital Library
Organizational Practices: A Digital Repository's Perspective
This presentation examines collection organization and preservation from the perspective of The Portal to Texas History, a digital repository for cultural heritage and historic materials from across the state of Texas. It focuses on how knowing one’s organizational scope, mission, and collection goals can help shape their materials management.
Date:
April 22, 2020
Creator:
Mangum, Jake & McIntosh, Marcia
Object Type:
Presentation
System:
The UNT Digital Library
A Signature Assignment Puts Vegetables on the Line
This is an unpublished manuscript that delves into the use of Signature Assignments (SAs) which are real-world applications that embed curriculum learning objectives in routine classwork and facilitate assessment of outcomes across classes and disciplines. SAs tied to key learning objectives demonstrate student growth and reveal areas where instructional improvement might be needed. Additionally, SAs tied to curriculum objectives contribute to program and university understanding of teaching strategies that promote student success.
Date:
April 19, 2020
Creator:
Connors, Priscilla L.
Object Type:
Text
System:
The UNT Digital Library
Organization of knowledge and information in digital archives of language materials
This article reports the first empirical investigation of various dimensions of organization and representation of recorded knowledge and information in language archives. The study used a combination of semi-structured interviews and content analysis. Results demonstrate that, while some of the phenomena related to organization of information in language archives are specific to these types of archives, others are more typical and have been addressed by libraries in past research and practice.
Date:
April 13, 2021
Creator:
Burke, Mary; Zavalina, Oksana; Phillips, Mark Edward & Chelliah, Shobhana Lakshmi
Object Type:
Article
System:
The UNT Digital Library
Utilizing TikTok for Library Peer-to-Peer Outreach
This poster will cover the results and experiences of using Tiktok as a form of peer-to-peer outreach to share research tips with other college students. Specific examples, learned best practices, and future plans for improvement will be discussed. It was presented at the Association of College and Research Libraries (ACRL) Distance and Online Learning Virtual Poster Session held April 26-30, 2021.
Date:
2021-04-26/2021-04-30
Creator:
Brents, Madison; Diaz, Sarah & Chung, Frances
Object Type:
Presentation
System:
The UNT Digital Library
Establishing a Smooth Video Production Workflow
Presentation covers a 5-step video creation workflow to produce educational videos. It was presented at the 2021 Virtual Conference of the Texas Distance Learning Association (TxDLA) held on April 20-23, 2021.
Date:
April 22, 2021
Creator:
Roy, Meranda M.
Object Type:
Presentation
System:
The UNT Digital Library
On counting cuspidal automorphic representations for GSp(4)
Article
Date:
April 15, 2021
Creator:
Roy, Manami; Schmidt, Ralf & Yi, Shaoyun
Object Type:
Article
System:
The UNT Digital Library
Childhood Asthma and Smoking: Moderating Effect of Preterm Status and Birth Weight
Article exploring the association between second-hand smoke exposure, asthma, and asthma severity in children ages 6-17 as well as the effect of birth weight and prematurity (BWP) on parental smoking and asthma. Results indicate that focused asthma interventions in children should inquire about BWP status as well as parental smoking and household smoke exposure to reduce asthma morbidity and mortality.
Date:
April 17, 2021
Creator:
Ogbu, Chukwuemeka E.; Ogbu, Stella C.; Khadka, Dibya & Kirby, Russell S.
Object Type:
Article
System:
The UNT Digital Library
District Reliance by Service Function: A Study of Public Financing of American Special Districts
This article provides an exploratory investigation of special district finance reliance from expenditure reliance of general–purpose governments on special districts’ service delivery and financing mode of special districts. The study shows that special districts have replaced the role of general-purpose governments and which revenue sources districts rely on the most.
Date:
April 1, 2021
Creator:
Park, HyungGun & Shi, Yu
Object Type:
Article
System:
The UNT Digital Library