UNT College of Arts and Sciences - 130 Matching Results
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- Artificially Structured Boundary for a high purity ion trap or ion source
- This article proposes a plasma enclosed by an Artificially Structured Boundary (ASB) as an alternative to existing ion source assemblies. In accelerator applications, many ion sources can have a limited lifetime or frequent service intervals due to sputtering and eventual degradation of the ion source assembly. Ions are accelerated towards the exit canal of positive ion sources, whereas, due to the biasing scheme, electrons or negative ions are accelerated towards the back of the ion source assembly.
- Magnetobound positronium and protonium
- This article investigates the formation of magnetobound positronium and protonium via classical trajectory simulations of binary point charge interactions in an external magnetic field. The results of computer simulations of the fully three-dimensional trajectories of classical and non-relativistic point charges with the same mass, equal charge magnitude, and opposite sign are reported. The simulations show the formation of magnetobound positronium and protonium. The results yield formation cross sections, which are compared to analytical expressions. Additionally, the results reveal that magnetobound states drift across magnetic field lines.
- Phase space of positron trajectories exiting a charged particle source through a magnetic field point cusp
- This article presents a configuration of magnetic fields using properties of cylindrically symmetric permanent magnets as a candidate to produce a high purity charged particle source or trap. Cylindrically symmetric hollow permanent magnets produce magnetic field point cusps on the axis of symmetry. A magnetic field point cusp reflects all particles that lie outside a narrow region of phase space, a region dependent on particle kinetic energies and on the magnetic field intensity.
- Explicitly teaching five technical genres to English first-language adults in a multi-major technical writing course
- In this article, the author reports the effects of explicitly teaching five technical genres to English first-language students enrolled in a multi-major technical writing course. Previous experimental research has demonstrated the efficacy of explicitly teaching academic writing to English first-language adults, but no comparable study on technical writing exists.
- Guidelines for the standardization of preanalytic variables for blood‐based biomarker studies in Alzheimer's disease research
- Review article which provides (1) a synopsis of selected preanalytical methods utilized in many international AD cohort studies, (2) initial draft guidelines/SOPs for preanalytical methods, and (3) a list of required methodological information and protocols to be made available for publications in the field to foster cross‐validation across cohorts and laboratories.
- Florigen and anti-florigen – a systemic mechanism for coordinating growth and termination in flowering plants
- Article describes study establishing FLOWERING LOCUS T (FT) as a key flower-promoting gene in photoperiodic systems.
- Social Reward Questionnaire (SRQ): development and validation
- Article discusses study which led to the development of the Social Reward Questionnaire (SRQ), a measure of individual differences in the value of different social rewards.
- SPHK1 regulates proliferation and survival responses in triple-negative breast cancer
- Article describes study suggesting that the inhibation of sphingosine kinase 1 (SPHK1) can attenuate ERK1/2 and AKT signaling and reduce growth of triple-negative breast cancer (TNBC) cells in vitro and in a xenograft SCID mouse model.
- γ-tocotrienol inhibits angiogenesis-dependent growth of human hepatocellular carcinoma through abrogation of AKT/mammalian target of rapamycin pathway in an orthotopic mouse model
- Article describing an investigation into whether γ-tocotrienol can abrogate angiogenesis-mediated tumor growth in hepatocellular carcinoma (HCC) and if so, through what molecular mechanisms.
- Association of Host and Microbial Species Diversity across Spatial Scales in Desert Rodent Communities
- Article describes study in which researchers employed a natural gradient of rodent species richness and quantified bacterial communities in rodent blood at several hierarchical spatial scales to test the hypothesis that associations between host and microbial species diversity will be positive in communities dominated by organisms with broad niches sampled at large scales.
- Negative Regulation of Signal Transducer and Activator of Transcription-3 Signalling Cascade by Lupeol Inhibits Growth and Induces Apoptosis in Hepatocellular Carcinoma Cells
- In this article, the authors evaluate the effect of lupeol on STAT3 signalling cascade and its regulated functional responses in hepatocellular carcinoma (HCC) cells. Constitutive activation of signal transducer and activator of transcription signalling 3 (STAT3) has been linked with survival, proliferation and angiogenesis in a wide variety of malignancies including HCC. Lupeol exhibited its potential anticancer effects in HCC through the downregulation of STAT3-induced pro-survival signalling cascade.
- Introducción a la Sección Especial de Revista Bosque. Avances de una red de sitios de estudios ecológicos a largo plazo en el suroeste de Sudamérica
- This article is the forward to a special section on long-term ecological research in Chile. It briefly introduces the main topics and ideas of each of the articles and comment on their relevance in the context of research and monitoring of Chilean ecosystems and in the perspective of global change research.
- Pulsed cooperative backward emissions from non-degenerate atomic transitions in sodium
- Article describes study which examines backward cooperative emissions from a dense sodium atomic vapor.
- Molecular evolutionary and structural analysis of the cytosolic DNA sensor cGAS and STING
- Article describes study in which researchers carried out comprehensive evolutionary analyses of the GMP-AMP (cGAMP) synthase (cGAS)-STING pathway.
- "With dignity we will fight!" Worker Self-managed Hotel BAUEN Once Again Under Threat
- This article discusses the efforts of self-managed workers in Hotel BAUEN in Buenos Aires, Argentina to appeal for international support as they confront the threat of eviction.
- Meta-discoveries from a synthesis of satellite-based land-cover mapping research
- This article provides a spatialized database of scientific literature in English about land-cover mapping.
- Mapping Mountain Pine Beetle Mortality through Growth Trend Analysis of Time-Series Landsat Data
- This article presents a forest growth trend analysis method that integrates Landsat temporal trajectories and decision tree techniques to derive annual forest disturbance maps over an 11-year period.
- Soil Diversity as Affected by Land Use in China: Consequences for Soil Protection
- This article reports the first effort to assess the impact of land-use change on soil diversity for the entire nation of China.
- Efficient multiband and broadband cross polarization converters based on slotted Lshaped nanoantennas
- This article presents highly efficient reflective cross polarization converters based on metamaterials operating in the infrared regime.
- Holographic fabrication of 3D photonic crystals through interference of multi-beams with 4 + 1, 5 + 1 and 6 + 1 configurations
- This article fabricates 3D photonic crystals or quasi-crystals through single beam and single optical element based holographic lithography.
- Estimating FPAR of Maize Canopy Using Airborne Discrete-Return LiDAR Data
- This article tests a method to estimate the fraction of absorbed photosynthetically active radiation (FPAR) of maize from airborne discrete-return LiDAR data.
- Engineering Metal Oxide Nanostructures for the Fiber Optic Sensor Platform
- This article presents an effective integration scheme of nanostructured SnO₂ with the fiber optic platform for chemical sensing applications based on evanescent optical interactions.
- Neighborhood Effects on Food Consumption
- This article examines the dual role of the social and physical neighborhood environment as they relate to the eating behaviors of residents of a low-income minority urban neighborhood.
- Variations in Park Facility Valuations across Neighborhoods
- This article assesses the hedonic valuation of different types of park facilities.
- Neighborhood Impact of Foreclosure: A Quantile Regression Approach
- This article uses quantile regression to examine the simultaneous space-time impact of foreclosures on neighborhood property values.
- ‘Forgotten and Forgiven’? Calvinism and French Society
- This article identifies and addresses a curious and persisting omission in the sociological literature on Calvinism, as specifically expounded in sociological journals.
- What's Wrong with Me?: An Autoethnographic Investigation of the Co-Cultural Communicative Practices of Living with Tourette Syndrome During Adolesence
- This article uses an autoethnographic methodology to explore a diagnosis of Tourette Syndrome.
- Neighborhood-Level Socioeconomic Deprivation Predicts Weight Gain in a Multi-Ethnic Population: Longitudinal Data from the Dallas Heart Study
- This article examines the relationship between neighborhood-level socioeconomic deprivation and weight change in a multi-ethnic cohort from Dallas County, Texas, and whether behavioral/psychosocial factors attenuate the relationship.
- Physicians, Clinics, and Neighborhoods: Multiple Levels of Influence on Colorectal Cancer Screening
- This article describes variability in colorectal cancer (CRC) test use and compares the performance of novel cross-classified and traditional hierarchical models.
- Ion Beam Materials Analysis and Modifications At keV to MeV Energies at the University of North Texas
- This paper provides an overview of the Ion Beam Modification and Analysis Laboratory facilities and some of the current research projects.
- Synthesis, biological evaluation and in silico and in vitro mode-of-action analysis of novel dihydropyrimidones targeting PPAR-γ
- This article reports the synthesis and related biological activity of novel dihydropyrimidones.
- Low neutral genetic diversity in isolated Greater Sage-Grouse (Centrocercus urophasianus) populations in northwest Wyoming
- This article contains an analysis of 16 microstatellite loci from 300 Greater Sage-Grouse individuals to assess genetic structure among populations in Wyoming and southeast Montana.
- Tunable Polymer-Based Sonic Structures
- Patent relating to methods and devices for controlling the propagation of sound and particularly to tunable polymer-based sonic structures.
- A Low-Cost GPS-Based Protocol to Create High-Resolution Digital Elevation Models for Remote Mountain Areas
- This article describes the use of a low-cost GPS-based protocol to construct a high-resolution digital elevation model for a rugged, remote mountain site in the northern Peruvian Andes.
- Frequency up-conversion in Lasing Without Inversion
- This article suggests the possibility of frequency up-conversion in lasing without inversion.
- Latino Attitudes Toward Abortion and Marriage Equality: Examining the Influence of Religiosity, Acculturation, and Non-Response
- This article seeks to extend literature on Latinos' policy preferences by examining the influence of multiple dimensions of acculturation and religiosity on two contemporary moral policy issues: abortion and same-sex marriage.
- Synthesis of Nickel and Nickel Hydroxide Nanopowders by Simplified Chemical Reduction
- This article presents a simple, inexpensive, and efficient chemical method of synthesizing nickel and nickel hydroxide powders with nanometer-sized particles.
- Knowledge of Cervical Cancer Risk Factors Among Educated Women in Lomé, Togo: Half-Truths and Misconceptions
- This article assesses what Togolese educated women know about cervical cancer and the accuracy of their knowledge.
- Arsenic exposure, AS3MT polymorphism, and neuropsychological functioning among rural dwelling adults and elders: a cross-sectional study
- This article aims to examine the link between low-level arsenic exposure and cognitive functioning, and the potential role of a single nucleotide polymorphism (SNP A35991G, rs10748835) of the AS3MT gene in modifying this link.
- Synthesis of Phenoxyacyl-Ethanolamides and Their Effects on Fatty Acid Amide Hydrolase Activity
- This article discusses the synthesis of two sets of phenoxyacyl-ethanolamides from natural products, 3-n-pentadecylphenolethanolamide and cardanolethanolamide, with structural similarity to N-Acylethanolamines and characterizes their effects on the hydroltic activity of fatty acid amide hydrolase.
- Stochastics and Thermodynamics for Equilibrium Measures of Holomorphic Endomorphisms on Complex Projective Spaces
- This article proves that the dynamical system (f,μφ) enjoys exponential decay of correlations of Hölder continuous observables as well as the Central Limit Theorem and the Law of Iterated Logarithm for the class of these variables that, in addition, satisfy a natural co-boundary condition. This article also shows that the topological pressure function t ↦ P(tφ) is real-analytic throughout the open set of all parameters t for which the potentials tφ have pressure gaps.
- Carbon-Hydrogen Bond Activation, C-N Bond Coupling, and Cycloaddition Reactivity of a Three-Coordinate Nickel Complex Featuring a Terminal Imido Ligand
- In this study, we describe reaction chemistry of the first nickel(II) complexes having a terminally bound imido ligand, (dtbpe)Ni=NR (R = 2,6-ⁱPr₂C₆H₃, 2,3,6-Me₃C₆H₂ (Mes), and Ad) with various small unsaturated molecules.
- Synthesis and Characterization of Dimethylbis(2-pyridyl)borate Nickel(II) Complexes: Unimolecular Square-Planar to Square-Planar Rotation around Nickel(II)
- This article reports the synthesis, characterization, and solution dynamics of the novel nickel(II) complexes (dimethylbis(2-pyridyl)borate)(triphenylphosphine)nickel(II) chloride (4) and (dimethylbis(2-pyridyl)borate)nickel(II) acetylacetonate (6).
- Inverted Social Reward: Associations between Psychopathic Traits and Self-Report and Experimental Measures of Social Reward
- This article describes two studies of individuals with high levels of psychopathic traits. Study 1 explores what aspects of social reward are associated with psychopathic traits, and Study 2 administers these measures to a new group of participants along with two experimental tasks investigating monetary and social reward value.
- Epigenetics as a Source of Variation in Comparative Animal Physiology - or - Lamarck Is Lookin' Pretty Good These Days
- This article discusses the ecological and and evolutionary significance of such epigenetic inheritance in a comparative physiological context, and provides a number of caveats and warnings regarding the interpretation of transgenerational phenotype modification as a true epigenetic phenomenon.
- Interplay between Bladder Microbiota and Urinary Antimicrobial Peptides: Mechanisms for Human Urinary Tract Infection Risk and Symptom Severity
- This article explores the interrelationship between the urinary microbiota and host antimicrobial peptides as mechanisms for urinary tract infection risk.
- Newton flow of the Riemann zeta function: separatrices control the appearance of zeros
- This article applies the continuous Newton method to the Riemann zeta function and discusses the emerging patterns emphasizing especially the structuring of the non-trivial zeros by the separatrices.
- A determination of the spatial concordance between Lyme disease incidence and habitat probability of its primary vector Ixodes scapularis (black-legged tick)
- This article involves mapping the probability of occurrence that the disease vector exists in the environment, mapping the incidence of Lyme disease in the human population and examining the spatial concordance between the probability map and incidence map.
- Surface core-level binding energy shifts for MgO(100)
- This article presents theoretical and experimental results for the surface core-level binding energy, BE, shifts, SCLS, for MgO(100) and the anomalous O(1s) SCLS is interpreted in terms of the surface electronic structure.
- LiDAR Data for Characterizing Linear and Planar Geomorphic Markers in Tectonic Geomorphology
- This paper provides a brief review of airborne light detection and ranging (LiDAR) data for characterizing linear and planar geomorphic markers in tectonic geomorphology, including traces of active faults and surface deformation caused by earthquakes. Challenges and opportunities of LiDAR for the study of tectonic geomorphology and coseismic deformation are also discussed.