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197 Matching Results
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A semi-automated method for extracting channels and channel profiles from lidar-derived digital elevation models
Article introduces a semi-automated method for extracting stream channels and channel profiles from high-resolution digital elevation models (DEMs) using image processing techniques. The method is implemented as an ArcGIS Python add-in toolbar named Channel Extraction and demonstrated using a lidar-derived DEM in a study area along the San Andreas fault in California, USA.
Date:
March 10, 2020
Creator:
Dong, Pinliang; Zhong, Ruofei; Xia, Jisheng & Tan, Shucheng
Object Type:
Article
System:
The UNT Digital Library
The neuroprotective properties of palmitoylethanolamine against oxidative stress in a neuronal cell line
This article discusses the neuroprotective properties of palmitoylethanolamine against oxidative stress in a neuronal cell line.
Date:
December 10, 2009
Creator:
Duncan, Scott R.; Chapman, Kent D. & Koulen, Peter
Object Type:
Article
System:
The UNT Digital Library
Teacher Qualification and the Achievement Gap in Early Primary Grades
This article examines the relationship of the qualification requirement of the No Child Left Behind Act to the goal of reducing the academic achievement gap.
Date:
August 10, 2009
Creator:
Easton-Brooks, Donald & Davis, Alan
Object Type:
Article
System:
The UNT Digital Library
Reduced reflectance and altered color: The potential cost of external particulate matter accumulation on urban Rock Pigeon (Columba livia) feathers
Authors of the article state that airborne particulate matter (PM) can accumulate on feather surfaces and alter feather appearance, so they quantified PM accumulation on Rock Pigeon feathers and analyzed the spectral properties of extracted particulates. Their findings suggest that wild birds could incur an urban pollution penalty as PM accumulation has the potential to alter feather properties.
Date:
February 10, 2023
Creator:
Ellis, Jennifer L.; Ponette-González, Alexandra G.; Fry, Matthew & Johnson, Jeff A.
Object Type:
Article
System:
The UNT Digital Library
The metabolic cost of turning right side up in the Mediterranean spur-thighed tortoise (Testudo graeca)
Article examining the the metabolic cost of self-righting in the terrestrial Mediterranean spur-thighed tortoise using respirometry and kinematic video analysis and comparing this to the metabolic cost of locomotion at a moderate, easily sustainable speed. The results found that self-righting is, relatively, metabolically expensive and costs around two times the mass-specific power required to walk.
Date:
January 10, 2022
Creator:
Ewart, Heather E.; Tickle, Peter G.; Sellers, William I.; Lambertz, Markus; Crossley, Dane A., II & Codd, Jonathan R.
Object Type:
Article
System:
The UNT Digital Library
Social- and Content-Aware Prediction for Video Content Delivery
Article proposes a Social- and Content-aware Video content delivery Prediction method (SCVP) to address the problem of predicting whether a video will be watched by a user for efficient video content delivery in mobile social networks.
Date:
February 10, 2020
Creator:
Fan, Yuqi; Yang, Bing; Hu, Donghui; Yuan, Xiaohui & Xu, Xiong
Object Type:
Article
System:
The UNT Digital Library
Managers or Librarians: Roles and Competencies in RDM
This paper describes a workshop to analyze the roles and competencies of data curators in different contexts such as enterprises and academic libraries in mainland China.
Date:
November 10, 2018
Creator:
Fan, Zhenjia
Object Type:
Paper
System:
The UNT Digital Library
Managers or Librarians: Roles and Competencies in RDM
Presentation for the 2018 International Conference on Knowledge Management. This presentation describes a workshop to analyze the roles and competencies of data curators in different contexts such as enterprises and academic libraries in mainland China.
Date:
November 10, 2018
Creator:
Fan, Zhenjia
Object Type:
Presentation
System:
The UNT Digital Library
Using CRISPR/Cas to enhance gene expression for crop trait improvement by editing miRNA targets
Article states that gene editing tools such as CRISPR/Cas9 are often thought of as a means to prevent gene expression; however, a more subtle and yet powerful approach is the enhancement of gene expression by precise deletion of repressor sites within a gene of interest. Authors argue that gene editing of miRNA target sites is preferable over deletion of the miRNA genes themselves, given that it avoids the pitfalls of unspecific derepression of miRNA target(s) beyond the gene of interest.
Date:
January 10, 2023
Creator:
Ferreira, Savio S. & Reis, Rodrigo S.
Object Type:
Article
System:
The UNT Digital Library
Panel on the Nexus of Knowledge Management and Information Science: What Past and Present Trends Tell Us About the Future
This panel brings together leaders from knowledge management and information science to discuss the trends and opportunities for collaboration within and between these fields.
Date:
November 10, 2018
Creator:
Freeburg, Darin; Liebowitz, Jay; Marchionini, Gary; Hawamdeh, Suliman M.; Makani, Joyline & Sappington, Jayne
Object Type:
Paper
System:
The UNT Digital Library
Philosophy Matters - Examining the Value of Knowledge
This paper discusses the University of North Texas' (UNT) Center for the Study of Interdisciplinarity (CSID), where philosophers continue to examine the value of knowledge. The authors also discuss one example of CSID's work with the Comparative Assessment of Peer Review (CAPR) project. CAPR is a four-year project (2008-2012) studying the changing nature of peer review processes across six U.S. and foreign public science agencies. CAPR is funded by the U.S. National Science Foundation's (NSF) Science of Science and Innovation Policy (SciSIP) program.
Date:
May 10, 2012
Creator:
Frodeman, Robert & Holbrook, J. Britt
Object Type:
Paper
System:
The UNT Digital Library
Bieberians at the Gate?
Article discussing theories on the evaluation of philosophy and philosophers and the peer review process.
Date:
December 10, 2012
Creator:
Frodeman, Robert; Holbrook, J. Britt & Briggle, Adam
Object Type:
Article
System:
The UNT Digital Library
Why a New Law School and Why Now? Speech to the Business Law Section of the Dallas Bar Association
This invited speech was delivered to the Business Law Section of the Dallas Bar Association. The speech addresses why the new UNT Dallas College of Law is being created and why now. The new UNT Dallas College of Law is anticipated to open in August 2014.
Date:
September 10, 2013
Creator:
Furgeson, William Royal, 1941-
Object Type:
Text
System:
The UNT Digital Library
The Reaction Kinetics of Amino Radicals with Sulfur Dioxide
Abstract: Application of the laser photolysis–laser-induced fluorescence method to the reaction NH2 + SO2 in argon bath gas yields pressure-dependent, third-order kinetics which may be summarized as 𝑘 = (1.49 ± 0.15) × 10^−31 (𝑇/298 K) − 0.83 cm^6 molecule^−2 s^−1 over 292 – 555 K, where the uncertainty is the 95% confidence interval and includes possible systematic errors.The quenching of vibrationally excited NH2 is consistent with a high-pressure limit for NH2 + SO2 of (1.62 ± 0.25) × 10^−11 cm^3 molecule^−1 s^−1 over the temperature range 295–505 K, where again the 95% confidence interval is shown. Abinitio analysis yields a H2N – SO2 dissociation enthalpy of 73.5 kJmol−1, and comparison with RRKM theory and the exponential down model for energy transfer yields ⟨Δ𝐸⟩down = 350 cm^−1 for Ar at room temperature.
Date:
April 29, 2015
Creator:
Gao, Yide; Glarborg, Peter & Marshall, Paul
Object Type:
Text
System:
The UNT Digital Library
Electric Field Enhanced Photoluminescence of CdTe Quantum Dots Encapsulated in Poly (N-Isopropylacrylamide) Nano-Spheres
This article shows an electric field dependent collapse of the poly(N-isopropylacramide) nanospheres and employs the electric field dependence as a means to adjust the photoluminescence process of the quantum dots in a hybrid material.
Date:
November 10, 2008
Creator:
Garner, Brett W.; Cai, Tong; Hu, Zhibing & Neogi, Arup
Object Type:
Article
System:
The UNT Digital Library
The “Malevolent” Benevolence: what happens to perceived immigrant threat when value priorities collide?
This article examines how self-transcending human values affect perceptions of immigrant threat. Results show that benevolence and universalism tend to affect perceived immigrant threat in opposite directions. A part of individuals’ anti-immigrant bias does not stem from strictly self-interested motivations, as often proposed, but by a sense of loyalty to the interests of our immediate contacts.
Date:
February 10, 2021
Creator:
Grigoropoulou, Nikolitsa
Object Type:
Article
System:
The UNT Digital Library
Examining Scientific Literacy through New Media
Article evaluates the impact of new media on scientific literacy. Content analysis with a coding scheme was performed on 42 filtered websites and 20 microblogs to analyze the role of new media in disseminating scientific knowledge. The results showed that the quality of science-oriented websites was higher than that of microblogs. Suggestions about how to improve the quality of science-oriented new media and how to develop students’ scientific literacy through new media are also discussed.
Date:
July 10, 2019
Creator:
Gu, Xiaoqing; Wang, Chunli & Lin, Lin
Object Type:
Article
System:
The UNT Digital Library
Composition-dependent apparent activation-energy and sluggish grain-growth in high entropy alloys
Article discusses experimental results which reveal that the apparent activation-energy for grain-growth in an fcc-based AlxCoCrFeNi high entropy alloy (HEA) system increases from 179 to 486 kJ/mol when the Al content increases from x = 0.1 to 0.3.
Date:
April 10, 2019
Creator:
Gwalani, Bharat; Salloom, Riyadh; Alam, Talukder; Valentin, S.G.; Zhou, X.; Thompson, G. et al.
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
Shedding New Light on Weak Emission-Line Quasars in the CIV-Hβ Parameter Space
Article describes how weak emission-line quasars (WLQs) are a subset of Type 1 quasars that exhibit extremely weak Lyα+N V λ1240 and/or C IV λ1549 emission lines. The authors investigate the relationship between emission-line properties and accretion rate for a sample of 230 `ordinary' Type 1 quasars and 18 WLQs at z<0.5 and 1.5<z<3.5 that have rest-frame ultraviolet and optical spectral measurements.
Date:
April 10, 2023
Creator:
Ha, Trung; Dix, Cooper; Matthews, Brandon M.; Shemmer, Ohad; Brotherton, Michael S.; Myers, Adam D. et al.
Object Type:
Article
System:
The UNT Digital Library
iCAMP: Curate, Archive, Manage, Preserve
This presentation discusses the iCAMP project; Curate, Archive, Manage, Preserve. It discusses research data management curricula gaps, a summary of other key projects and findings, the iCAMP project aims and research methodology, gives a review of iCAMP results, and offers questions raised for the future.
Date:
December 10, 2012
Creator:
Halbert, Martin
Object Type:
Presentation
System:
The UNT Digital Library
Terahertz spectroscopy of MOFs reveals dynamic structure and contact free ultrafast photoconductivity
Article describes how metal-organic frameworks (MOFs) are porous crystalline materials, and their large pores make them particularly interesting for membranes, gas separation, and gas storage. The authors discuss how gas-MOF interactions alter the MOFs' spectral fingerprints.
Date:
January 10, 2024
Creator:
Hamilton, Kendra & Neu, Jens
Object Type:
Article
System:
The UNT Digital Library
A smartphone-based online system for fall detection with alert notifications and contextual information of real-life falls
This article presents the results of a prospective study investigating a proof-of-concept, smartphone-based, online system for fall detection and notification. Apart from functioning as a practical fall monitoring instrument, this system may serve as a valuable research tool, enable future studies to scale their ability to capture fall-related data, and help researchers and clinicians to investigate real-falls.
Date:
August 10, 2021
Creator:
Harari, Yaar; Shawen, Nicholas; Mummidisetty, Chaithanya K.; Albert, Mark & Kording, Konrad P.
Object Type:
Article
System:
The UNT Digital Library
Holographically Formed Three-Dimensional Penrose-Type Photonic Quasicrystal Through a Lab-Made Single Diffractive Optical Element
This describes the use of a holographic lithography method to fabricate large-area three-dimensional Penrose-type photonic quasicrystals.
Date:
September 10, 2010
Creator:
Harb, Ahmad; Torres, Faraon; Ohlinger, Kris; Lin, Yuankun; Lozano, Karen; Xu, Di et al.
Object Type:
Article
System:
The UNT Digital Library