Miracle-dz/UniFAR-FTUs huggingface dataset:
Predictors of Dental Students’ Behavioral Intention Use of Teledentistry: An Application of the Unified Theory of Acceptance and Use of Technology (UTAUT) Model

PREDICTORS OF DENTAL STUDENTS’ BEHAVIORAL INTENTION USE OF TELEDENTISTRY: AN APPLICATION OF THE UNIFIED THEORY OF ACCEPTANCE AND USE OF TECHNOLOGY (UTAUT) MODEL Jafar Hassan Alabdullah Old Dominion University, 2020 Co-Directors: Dr. Bonnie L. Van Lunen Dr. Denise M. Claiborne Shortages of dental professionals and access barriers to dental care are challenges to improving oral health and decreasing the burden of dental diseases. There are more than 57 million individuals in the U.S. who live in dental health professional shortage areas (DHPSA). The U.S. DHPSA areas need 9,951 dental practitioners to overcome the obstacles to oral care access. Due to dental care needs for these populations, it is imperative to find a new method to reach these underserved populations. Teledentistry is an innovative technology that can be used to improve access to care and oral health outcomes. Unfortunately, there is still limited utilization of teledentistry in dental practice in the U.S. Many studies have investigated factors associated with the applications of telehealth and telemedicine; however, limited investigations have addressed the barriers to the use and implementation of teledentistry. The overarching purpose of this dissertation was to explore factors associated with the future use of teledentistry among predoctoral dental students. To achieve this purpose, three interrelated projects were conducted. The first project involved a systematic review to investigate the validity of using teledentistry in dental practice. The second project examined demographics, individual characteristics, and prior experience with teledentistry associated with U.S. dental students’ intention to use teledentistry in their dental practice. The final project utilized the unified theory of acceptance and use of technology model (UTAUT) to predict the future use of teledentistry by evaluating U.S dental students’ behavioral intention to use teledentistry in practice. The systematic review confirmed that a teledentistry oral diagnosis was comparable to face-to-face diagnosis and suggests the need for methodologically designed studies with appropriate statistical tests to further investigate the validity of teledentistry. Project II results indicated that dental students with prior teledentistry experience were more likely to utilize this technology in their future practice. Project III identified that the UTAUT model significantly predicted dental students’ behavioral intention to use teledentistry. All the UTAUT constructs were significantly associated with dental students’ behavioral intention. Findings from these three projects indicate that exposure to teledentistry while in dental school increases the likelihood of use as a licensed dentist.
Contrasting Upper and Deep Ocean Oxygen Response to Protracted Global Warming

It is well established that the ocean is currently losing dissolved oxygen (O2) in response to ocean warming, but the long‐term, equilibrium response of O2 to a warmer climate is neither well quantified nor understood. Here we use idealized multimillennial global warming simulations with a comprehensive Earth system model to show that the equilibrium response in ocean O2 differs fundamentally from the ongoing transient response. After physical equilibration of the model (>4,000 years) under a two times preindustrial CO2 scenario, the deep ocean is better ventilated and oxygenated compared to preindustrial conditions, even though the deep ocean is substantially warmer. The recovery and overshoot of deep convection in the Weddell Sea and especially the Ross Sea after ~720 years causes a strong increase in deep ocean O2 that overcompensates the solubility‐driven decrease in O2. In contrast, O2 in most of the upper tropical ocean is substantially depleted owing to the warming‐induced O2 decrease dominating over changes in ventilation and biology. Our results emphasize the millennial‐scale impact of global warming on marine life, with some impacts emerging many centuries or even millennia after atmospheric CO2 has stabilized.
Journal of Materials Chemistry A

The double perovskites NdBaCo 2 (cid:1) x Mn x O 5+ d ( x ¼ 0 and 0.5) were investigated using in situ high temperature neutron powder di ﬀ raction in dry argon and wet atmospheres (40% D 2 O/argon and 40% D 2 O/air) in order to assess their stability as cathodes in proton conducting fuel cells. The x ¼ 0 oxide loses oxygen on heating in dry argon at T > 400 (cid:3) C and exhibits an oxygen vacancy order – disorder transition as evidenced by the orthorhombic Pmmm to tetragonal P 4/ mmm transition. Re ﬁ nement of site occupancy factors suggests that the oxygen vacancies mainly form in the Nd layers and to a lesser extent at the equatorial positions of the transition metal polyhedra; at 800 (cid:3) C, d (cid:4) 0. When the gas was changed to wet argon at 800 (cid:3) C and the sample cooled to 260 (cid:3) C, no structural modi ﬁ cation or change in the oxygen content was detected and no impurity phases formed, highlighting the excellent stability of the sample in wet atmospheres. On switching the gas to wet air at 260 (cid:3) C, thermal analysis and neutron powder di ﬀ raction data together reveal that the sample intercalates mainly oxygen rather than proton defects within a two-phase process involving two orthorhombic phases, re ﬂ ecting the symmetry of the reduced and oxidised materials. On heating, the sample transforms at T $ 600 (cid:3) C to a single tetragonal phase whose symmetry is retained up to 800 (cid:3) C and on subsequent cooling. The x ¼ 0.5 material prepared in argon adopted a tetragonal P 4/ mmm structure at RT with d (cid:4) 0. Its symmetry remains tetragonal on heating/ cooling in wet argon. On changing the gas to wet air at 260 (cid:3) C, it takes up oxygen via a two-phase process involving two tetragonal phases. Since fast oxidation is the main process that ﬁ lls the oxygen vacancies of these double perovskites in wet air, a large oxygen de ﬁ ciency seems to be not the only requirement for e ﬀ ective proton incorporation in this family of materials with basic characteristics.
Association of PCR-RFLP at the Growth Hormone Gene with Early Growth and Developmental Traits in the Nanjiang Brown Goats

The partial fragments of GH gene polymorphisms of 90 Nanjiang Brown goats were detected by PCR-RFLP.Association of PCR-RFLP at the GH gene with early growth and developmental traits in the Nanjiang Brown goats was also analyzed.The result showed that the sequence of PCR-amplified products was 985 bp which included goat GH gene sequences of exon 3,exon 4,exon 5 and intron 3,intron 4.The PCR products were digested by two kinds of restriction endonuclease named FokⅠ and AciⅠ,respectively.Both of them had polymorphisms.The FokⅠ produced GG,GA and AA genotypes which frequencies were 0.522,0.289 and 0.189,but the allele frequency of G(0.666) was higher than that of A(0.334). The AciⅠ produced CC,TC and TT genotypes which frequencies were 0.467,0.322 and 0.211,respectively,but the allele frequency of C(0.628) was higher than that of T(0.372). Chi-square test revealed that the genotype frequencies produced by restriction endonucleases were non-equilibrium Hardy-Weinberg.Association analysis of PCR-RFLP at the GH gene with early growth and developmental traits indicated that the least square means of weight,body height and body length with GA and TC genotypes were both significantly higher than that with other genotypes at different month ages(0.05P0.01 or P0.01).
Consequences of Temporal Land Cover Changes on Ecosystem Services in Babile Elephant Sanctuary, Eastern Ethiopia

Land cover (LC) change has been identified as one of the leading drivers of change in the ecosystem and its services. However, information on the impact of temporal land cover change on the ecosystem and ecosystem services in Ethiopia is largely unknown. Thus, this study examined the impacts of temporal LC changes on the ecosystem and ecosystem services (ESs) provision in Babile Elephant Sanctuary (BES) during the period of 1977 to 2017 using a landsat image analysis and questionnaire survey. In BES, woodland covered the largest area in the year 1977, 1997 and 2017, followed by bushland and agricultural land. However, there was a consistent decline in woodland and bushland from 56.5% and 31.1% coverage in the year 1977 to 45.3 and 27.2% in the year 2017, respectively. Agricultural land and settlements increased from the year 1977, when they covered about 3.5 and 0.1%, respectively to 2017, when they covered 17.3 and 3.4%, respectively. We found significant (p<0.05) differences in the social perception of the positive and negative impacts of land cover change on ecosystem services. The respondents recognized the negative impact of agricultural land expansion and settlement on the ecosystem such as the provision of wild food, livestock feed, medicinal plants, fresh water, fuel-wood, raw materials and climate regulation leading to an increase in food shortage and vulnerability to frequent drought and flood. Therefore, it is necessary to take urgent measures to prevent the losses in ecosystem and ecosystem services as a result of land cover change that occurs because of human activities.
Use of indigenous sources of sulphur in soils of eastern India for higher crops yield and quality: A review

Sulphur is the fourth most important nutrient after nitrogen, phosphorus and zinc for Indian Agriculture. Large quantities of indigenous S sources such as mined gypsum, pyrite and by-product phosphogypsum are available in the country. Research efforts have been directed to evaluate suitability of these indigenous S sources as sulphur fertilizer in soils and crops of eastern India. The magnitude of S deficiency widely differed in soils of eastern states. Among different crops oilseeds were found more responsive to S application than pulses and cereals. The dose of most of the crops ranged between 20 to 60 kg ha-1 except sugarcane which profitably responded at 80 kg ha-1. Basal soil application of gypsum and phosphogypsum were found to be superior than that of pyrites. However, pyrites resulted in higher crop response on residual sulphur in various cropping systems. In addition to yield, application of S improved the quality of crop produce also. Protein content in cereals and pulses, oil content in oil seeds and sugar content in sugarcane were appreciably increased due to S application. Replenishment of sulphur in soil can be made through the use of indigenous sources of sulphur for achieving higher crops yield and quality in eastern states of India.
Design guidelines for supersonic radial vanes operating with non-ideal flow conditions

Supersonic stator vanes of high temperature mini-Organic Rankine Cycle (ORC) turbines account for two-thirds of the fluid-dynamic losses. As a result, the overall performance of the turbo-expander primarily depends on the design of stator vanes. Currently, there is no established correlation for the optimal design of ORC stators. In this work, the accuracy of the only design law applicable to ORC stators, the Deich’s model, is investigated. A physics-based analytical model and a CFD-based numerical model were developed to obtain the optimal post-expansion ratio and to compare their results with the Deich’s model. The analysis shows that the Deich’s method fails to accurately predict the optimum value of the post-expansion ratio. In summary, vanes operating with a complex fluid and given pressure ratio feature a unique value of the optimum post-expansion ratio and new correlations are required to predict its value. Future work will focus on the development of such correlations.
Development of aerosol activation in the double-moment Unified Model and evaluation with CLARIFY measurements

Abstract. Representing the number and mass of cloud and aerosol particles independently in a climate, weather prediction or air quality model is important in order to simulate aerosol direct and indirect effects on radiation balance. Here we introduce the first configuration of the UK Met Office Unified Model in which both cloud and aerosol particles have “double-moment” representations with prognostic number and mass. The GLObal Model of Aerosol Processes (GLOMAP) aerosol microphysics scheme, already used in the Hadley Centre Global Environmental Model version 3 (HadGEM3) climate configuration, is coupled to the Cloud AeroSol Interacting Microphysics (CASIM) cloud microphysics scheme. We demonstrate the performance of the new configuration in high-resolution simulations of a case study defined from the CLARIFY aircraft campaign in 2017 near Ascension Island in the tropical southern Atlantic. We improve the physical basis of the activation scheme by representing the effect of existing cloud droplets on the activation of new aerosol, and we also discuss the effect of unresolved vertical velocities. We show that neglect of these two competing effects in previous studies led to compensating errors but realistic droplet concentrations. While these changes lead only to a modest improvement in model performance, they reinforce our confidence in the ability of the model microphysics code to simulate the aerosol–cloud microphysical interactions it was designed to represent. Capturing these interactions accurately is critical to simulating aerosol effects on climate.
THEMIS: A Parameter Estimation Framework for the Event Horizon Telescope

The Event Horizon Telescope (EHT) provides the unprecedented ability to directly resolve the structure and dynamics of black hole emission regions on scales smaller than their horizons. This has the potential to critically probe the mechanisms by which black holes accrete and launch outflows, and the structure of supermassive black hole spacetimes. However, accessing this information is a formidable analysis challenge for two reasons. First, the EHT natively produces a variety of data types that encode information about the image structure in nontrivial ways; these are subject to a variety of systematic effects associated with very long baseline interferometry and are supplemented by a wide variety of auxiliary data on the primary EHT targets from decades of other observations. Second, models of the emission regions and their interaction with the black hole are complex, highly uncertain, and computationally expensive to construct. As a result, the scientific utilization of EHT observations requires a flexible, extensible, and powerful analysis framework. We present such a framework, Themis, which defines a set of interfaces between models, data, and sampling algorithms that facilitates future development. We describe the design and currently existing components of Themis, how Themis has been validated thus far, and present additional analyses made possible by Themis that illustrate its capabilities. Importantly, we demonstrate that Themis is able to reproduce prior EHT analyses, extend these, and do so in a computationally efficient manner that can efficiently exploit modern high-performance computing facilities. Themis has already been used extensively in the scientific analysis and interpretation of the first EHT observations of M87.
30_5125-5135_Ali M_102

The study was aimed at evaluating phytochemical constituents and antimicrobial activities of Jatropha curcas extracts against patients with wound infections attending Jahun General Hospital, Jigawa State. The plant materials were sourced, identified and extracted using water and ethanol. Preliminary phytochemical screening of extracts was carried out using standard procedure. Escherichia coli, Pseudomonas sp. Staphylococcus aureus, Aspergillus niger, Penicillium sp. and Candida sp. were isolated and identified from ten (10) wound patients. Evaluation of antimicrobial activities of the extracts was also carried out. Results of phytochemical screening revealed the presence of saponins, tritepenes, anthraquinones, alkaloids, flavonoids and tannins in both seed and stem bark ethanol and aqueous extract with exception of flavonoids in stem bark extracts. The antimicrobial activities result shows that among the extracts, ethanol seed extracts has the highest antimicrobial activity compared with that of aqueous with the inhibition zone diameter of 15.0 ± 0.0mm and 13.0 ± 0.0mm respectively at 2000μg/ml concentration against E. coli and 13.0 ± 0.0mm and 12.0 ± 0.0mm against Staphylococcus aureus at 2000μg/ml concentration. Conclusively, ethanol could be considered as the best extracting solvent and Jatropha curcas seed extracts could be considered for further analysis on antimicrobial activity against pathogenic bacteria and fungi.
SG ] 4 J un 2 00 6 The M-ellipsoid , Symplectic Capacities and Volume

In this work we bring together tools and ideology from two different fields, Symplectic Geometry and Asymptotic Geometric Analysis, to arrive at some new results. Our main result is a dimension-independent bound for the symplectic capacity of a convex body by its volume radius. 1 Short Introduction In this work we bring together tools and ideology from two different fields, Symplectic Geometry and Asymptotic Geometric Analysis, to arrive at some new results. Our main result is a dimension-independent bound for the symplectic capacity of a convex body by its volume radius. This type of inequality was first suggested by C. Viterbo, who conjectured that among all convex bodies in R with a given volume, the Euclidean ball has maximal symplectic capacity (definition in Section 2 below). More precisely, Viterbo’s conjecture states that the best possible constant γn such that for any choice of a symplectic capacity c and any convex body K ⊂ R we have c(K) c(B2n) ≤ γn ( Vol(K) Vol(B2n) )1/n , is γn = 1, where B 2n is the Euclidean unit ball in R. The estimate which Viterbo proved in his work [19] was γn ≤ 32n, and in the case of centrally symmetric bodies he showed that γn ≤ 2n. Hermann showed in [5] that for the special class of convex Reinhardt domains the conjecture holds. The first and third named authors showed in [1] that there exists a universal constant A1 such that γn ≤ A1(log 2n), and also presented wide classes of bodies where the inequality holds without the logarithmic term. The methods used for that result came from Asymptotic Geometric Analysis. ∗The first named author was supported by the National Science Foundation under agreement No. DMS-0111298. The first and second named authors were supported in part by a grant from the US-Israeli BSF.
A comparison of rugae pattern in males and females as a samples of Iraqi population

The palatine rugae are irregular fibrous connective tissue ridges located in the anterior third of hard palate that extends bilaterally from the midline behind the incisive papilla. Rugae patterns play a role as positive identification of individuals in suspected cases in forensic dentistry. The aim of the present study is to identify and compare the rugae pattern in a sample of Iraqi population. Materials and method: 120 samples of maxillary casts were selected for 60 males and 60 females their ages ranging between (22-35) years old by using Thomas & Kotze classification for assessment rugae patterns. As a result of this study shows that rugae patterns has a unique individual imprint, differ in the number, symmetry between right and left sides, shape of rugae lines for each person with no significant differences for both sexes. This work conclude that rugae patterns can be used as additional method for identification as a personal print, and considered a characteristic to discriminate between individuals.
Discrete spectrum , Veech systems and application to Number Theory

We explore the notion of discrete spectrum and its various characterizations for ergodic measurepreserving actions of an amenable group on a compact metric space. In particular, the characterization of topological dynamical systems for which every invariant measure has a discrete spectrum is obtained. As a consequence, we establish that the strong Veech systems are tame. In particular, for any countable amenable group T the flow on the orbit closure of the translates of a ‘Veech function’ f ∈ K(T ) is tame. As a consequence, we obtain an improvement of Motohashi-Ramachandra 1976’s theorem on the Mertens function in a short interval, by establishing that Möbius orthogonality conjecture of Sarnak holds for those systems. We further improved Motohashi-Ramachandra’s bound to 1 2 under Chowla conjecture.
Does Debt Maturity Affect Stock Price Crash Risk

This paper examines the impact of debt maturity choice on future stock price crash risk. We find that firms with a larger proportion of short-term debt tend to have lower future stock price crash risk, consistent with short-term debt playing an effective monitoring role over managers and constraining their bad news hoarding behavior. Our results also show that the inverse relation between short-term debt and future crash risk is more pronounced among firms with less effective corporate governance, lower institutional ownership, and higher degree of information asymmetry, suggesting that the monitoring effect of short-term debt substitutes for weak governance mechanisms. Overall, our paper shows that short-term debt not only preserves creditors’ interests, but also protects the value of shareholders. JEL Classification: G3, G12, G14.
Superconductivity in general domains

Motivated by the superconductivity, we are interested in the fundamental state of the Schrödinger operator with magnetic field in a domain with corners. In this paper, we propose a numerical approach based on the finite elements method to determine the bottom of the spectrum of this operator in general domains. We improve the numerical results by using mesh-refinment techniques based on a posteriori error estimates developed in [6]. We also look at the monotonicity of the bottom of the spectrum in an angular sector according to the angle to complement the theoretical study of [5, 7].
Analysis of Internet Addiction Levels of University Students in Terms of the State of Doing Sport

The aim of the present study is to examine the internet addiction levels of university students in terms of the state of doing sport and different variables. A total of 300 students, 132 male and 168, studying in Samsun Ondokuz Mayıs University participated in the study. Internet Addiction Scale which was developed by Günüç and Kayri (2010) and which had four sub-dimensions (withdrawal, controlling difficulty, disorder in functionality and social isolation) was used. SPSS 22.0 program was used for the statistical analysis. Significance was found in the sub-dimensions of withdrawal and social isolation in terms of the variable of gender (p<0.05) and in the sub-dimension of social isolation in terms of the variables of faculty and the state of doing sport regularly (p<0.05). It can be seen that internet addiction levels were similar in all sub-dimensions except for social isolation, while they were found to be different in the sub-dimension of withdrawal in terms of the variable of gender. This result is thought to be associated with the fact that students who do sport regularly and those attending sport sciences faculty are not exposed to social isolation due to sport and that they lead more social lives when compared with the students of other faculties. In terms of the variable of gender, it is thought that the reason why female students had higher withdrawal levels can be due to the fact that men can act more comfortably in social life.