Miracle-dz/UniFAR-FTUs huggingface dataset:
Cross-Sectional Stiffness Properties of Complex Drone Wings

The main purpose of this thesis is to develop a beam element in order to model the wing of a drone, made of composite materials. The proposed model consists of the framework for the structural design and analysis of long slender beam like structures, e.g., wings, wind turbine blades, and helicopter rotor blades, etc. The main feature consists of the addition of the coupling between axial and bending with torsional effects that may arise when using composite materials and the coupling stemming from the inhomogeneity in cross-sections of any arbitrary geometry. This type of modeling approach allows for an accurate yet computationally inexpensive representation of a general class of beam-like structures. The framework for beam analysis consists of main two parts, cross-sectional analysis of the beam sections and then using this section analysis to build up the finite element model. The cross-sectional analysis is performed in order to predict the structural properties for composite sections, which are used for the beam model. The thesis consists of the model to validate the convergence of the element size required for the cross-sectional analysis. This follows by the validation of the shell models of constant cross-section to assess the performance of the beam elements, including coupling terms. This framework also has the capability of calculating the strains and displacements at various points of the cross-section. Natural frequencies and mode shapes are compared for different cases of increasing complexity with those available in the papers. Then, the framework is used to analyze the wing of a drone and compare the results to a model developed in NASTRAN. Cross-Sectional Stiffness Properties of Complex Drone Wings Neeharika Muthirevula GENERAL AUDIENCE ABSTRACT This thesis is based on developing framework for structural design and analysis of long slender beam-like structures, e.g., airplane wings, helicopter blades, wind turbine blades or any UAVs. The framework is used for the generation of beam finite element models which correctly account for effects stemming from material anisotropy and inhomogeneity in cross sections of arbitrary geometry. The framework for beam analysis consists of main two parts, cross-sectional analysis of the beam sections and then using this section analysis to build up the finite element model. The cross-sectional analysis is performed in order to predict the structural properties for composite sections, which are used for the beam model. This type of modelling approach allows for an accurate yet computationally inexpensive representation of a general class of beam-like structures.
Using Digital Technologies for Testing Online Teaching Skills and Competencies during the COVID-19 Pandemic

This study examines the online teaching abilities and competencies needed to teach online courses in Saudi Arabia’s higher education system. As a result, the goal of this study was to examine and expand the technology acceptance model (TAM) to assess online teaching abilities and competences utilizing digital technologies in higher education during the COVID-19 epidemic. Therefore, it aimed to develop a new model to measure and explore critical factors that influence online teaching skills, competencies, and actual use of digital tools in higher education. The participants in the study were 350 lecturers at King Faisal University. The research data were analyzed using structural equation modeling (AMOS-SEM). The findings revealed that: (a) perceived ease of use and perceived usefulness on using digital tools during the COVID-19 pandemic has a direct positive impact on perceived teaching self-efficacy, perceived enjoyment, online teaching skills, and digital tools access; (b) perceived ease of use and perceived usefulness of using digital tools have a direct positive impact on lecturers’ attitude toward use and lecturers’ behavioral intention to use digital tools during the COVID-19 pandemic; and (c) perceived ease of use. As a consequence of the findings, a validated instrument was designed to assess and investigate crucial elements that impact lecturers’ real usage of digital technologies for teaching and learning in Saudi Arabia’s higher education.
Non-Financial Enterprise Financialization, Product Market Competition, and Total Factor Productivity of Enterprises

At present, two big challenges have struck China’s economic development: economic containment “from the real to the virtual” and accomplishment in the goal of high-quality economic development. Taking China’s A-share public manufacturing enterprises from 2007 to 2020 as samples, this paper empirically analyzes the relationships among product market competition, non-financial enterprise financialization, and total factor productivity of enterprises. It is found that non-financial enterprise financialization significantly lowers down the total factor productivity of enterprises, that is, the total factor productivity of enterprises will drop by 1.7% as the non-financial enterprise financialization rises by 1 SD every time. After external regulation effects of product market competition are further taken into account, the furious product market competition, on the whole, mitigates the negative influences of non-financial enterprise financialization on total factor productivity of enterprises by strengthening the role of non-financial enterprise financialization as a “reservoir” and abating the “crowding-out” effect. Therefore, competition promotion policies combined with funds moving “from the virtual to the real” could more effectively elevate the enterprise productivity.
Fictional politainment: Exposure to international television drama and attitude toward female politicians

We examine the relationship between media use motivations and attitudes toward female politicians by proposing a conceptual model explaining the role of key mediating variables such as identification, narrative transportation, enjoyment, and political self-efficacy in influencing the attitude of the viewers of international TV drama towards female role models (politicians). We investigated the direct and indirect effects between media use motivations and attitudes toward female politicians by recruiting 359 students from two large public universities in the Southeastern United States. The hypothesized model supported the evidence presented in extant scholarship, suggesting that a meaningful entertainment experience could foster an appreciation of the fictional televisual entertainment and positively change attitudes toward female lead characters playing the role of a viable and competent politician. This study resonates with politicians, academics, and activists’ concerns that a positive media portrayal could promote the acceptability of female leaders in powerful positions. Our study clarifies the direct and indirect effects between media use motivations and attitudes toward female politicians and the role of crucial mediating variables such as identification, narrative transportation, enjoyment, and political self-efficacy in influencing the attitude of the viewers of international TV drama towards female politicians.
Electron‐Scale Current Sheet as the Boundary of a Linear Magnetic Hole in the Terrestrial Current Sheet Observed by the Magnetospheric Multiscale Mission

Ion‐scale and electron‐scale magnetic holes widely exist in many space plasma regions, and have been extensively studied. However, characteristics of the charged particles and current densities inside the linear magnetic holes (LMHs) with a size between typical ion and electron scales are unclear. Here, we report a LMH with a cross section size of ∼2.4 ion gyroradii in the terrestrial current sheet using the high‐resolution data of the Magnetospheric Multiscale Mission. We find that the electron velocity and temperature have significant variations at the sharp boundaries of this LMH, while the ion parameters have no significant change. The decrease of the magnetic field pressure is mainly balanced by the electron thermal pressure. A strong electron flow accompanied by an enhancement of the electric field is formed by electron drift motions on the outermost boundary with a thickness of 0.12–0.24 ion gyroradius. This electric field might originate from variations of the ion and electron gyrations when crossing the sharp boundary. The electron flow forms a thin current sheet on the outermost side of the LMH instead of being distributed over the entire cross section. Most of the trapped electrons are wrapped by this thin current sheet. These results could improve our understanding of the properties of LMHs with a size between typical ion and electron scales.
Investigating the Stability of Six Phenolic TMZ Ester Analogues, Incubated in the Presence of Porcine Liver Esterase and Monitored by HPLC

Previous published data from our group showed the encouraging in vitro activities of six phenolic temozolomide (TMZ) ester analogues (ES8–ES12 and ES14) with up to a five-fold increase in potency compared to TMZ against glioblastoma multiform cell lines and TMZ-resistant O6-methylguanine-DNA methyl transferase (MGMT)-positive primary cells. This study investigated the stabilities of the six phenolic TMZ ester analogues in the presence of porcine liver esterase (PLE) as a hydrolytic enzyme, using high-performance liquid chromatography (HPLC), monitored by a diode-array detector (DAD). Determining the rates of hydrolysis of the esters provided a useful insight into the feasibility of progressing them to the next phase of drug development. Fifty percent of TMZ esters consisting of para nitro, chloro, phenyl and tolyl groups (ES9, ES10, ES12 and ES14) were hydrolysed within the first 4.2 min of PLE exposure, while the TMZ esters consisting of para methoxy and nitrile groups (ES8 and ES11) demonstrated increased stability, with 50% hydrolysis achieved in 7.3 and 13.7 min, respectively. In conclusion, the survival of these phenolic TMZ esters on route to the target site of a brain tumor would be a challenge, mainly due to the undesirable rapid rate of hydrolysis. These findings therefore pose a question regarding the effectiveness of these esters in an in vivo setting.
Knowledge Representation and Reasoning with an Extended Dynamic Uncertain Causality Graph under the Pythagorean Uncertain Linguistic Environment

A dynamic uncertain causality graph (DUCG) is a probabilistic graphical model for knowledge representation and reasoning, which has been widely used in many areas, such as probabilistic safety assessment, medical diagnosis, and fault diagnosis. However, the convention DUCG model fails to model experts’ knowledge precisely because knowledge parameters were crisp numbers or fuzzy numbers. In reality, domain experts tend to use linguistic terms to express their judgements due to professional limitations and information deficiency. To overcome the shortcomings of DUCGs, this article proposes a new type of DUCG model by integrating Pythagorean uncertain linguistic sets (PULSs) and the evaluation based on the distance from average solution (EDAS) method. In particular, experts express knowledge parameters in the form of the PULSs, which can depict the uncertainty and vagueness of expert knowledge. Furthermore, this model gathers the evaluations of experts on knowledge parameters and handles conflicting opinions among them. Moreover, a reasoning algorithm based on the EDAS method is proposed to improve the reliability and intelligence of expert systems. Lastly, an industrial example concerning the root cause analysis of abnormal aluminum electrolysis cell condition is provided to demonstrate the proposed DUCG model.
Transcriptional and Epigenetic Factors Associated with Early Thrombosis of Femoral Artery Involved in Arteriovenous Fistula

Arteriovenous fistulas (AVFs), created for hemodialysis in end-stage renal disease patients, mature through the outward remodeling of the outflow vein. However, early thrombosis and chronic inflammation are detrimental to the process of AVF maturation and precipitate AVF maturation failure. For the successful remodeling of the outflow vein, blood flow through the fistula is essential, but early arterial thrombosis attenuates this blood flow, and the vessels become thrombosed and stenosed, leading to AVF failure. The altered expression of various proteins involved in maintaining vessel patency or thrombosis is regulated by genes of which the expression is regulated by transcription factors and microRNAs. In this study, using thrombosed and stenosed arteries following AVF creation, we delineated transcription factors and microRNAs associated with differentially expressed genes in bulk RNA sequencing data using upstream and causal network analysis. We observed changes in many transcription factors and microRNAs that are involved in angiogenesis; vascular smooth muscle cell proliferation, migration, and phenotypic changes; endothelial cell function; hypoxia; oxidative stress; vessel remodeling; immune responses; and inflammation. These factors and microRNAs play a critical role in the underlying molecular mechanisms in AVF maturation. We also observed epigenetic factors involved in gene regulation associated with these molecular mechanisms. The results of this study indicate the importance of investigating the transcriptional and epigenetic regulation of AVF maturation and maturation failure and targeting factors precipitating early thrombosis and stenosis.
Correlation of urinary nephrin with albubinuria to predict early onset of nephropathy in patients with type 2 diabetes mellitus

Nephropathy is a major microvascular complication in patients with type 2 diabetes mellitus (T2DM), where urinary albumin a gold standard and clinically using marker for detection of nephropathy. Some of the studies reported urinary albumin is not a marker for detection of nephropathy. Moreover, recent studies reported urinary nephrin was considered to be a predictable marker for nephropathy. The present study has been designed to evaluate the status of urinary albumin and nephrin to predict early onset of nephropathy in T2DM. The present study included 120 subjects, among these 80 subjects with T2DM again sub grouped into 2 based on ACR ratio (40 T2DM with Normoalbuminuria, 40 T2DM with Microalbuminuria) and 40 healthy controls. Routine biochemical parameters, urinary albumin were analysed by using standard laboratory methods and Urinary nephrin were analysed by using ELISA and statistical analysis was done by using Microsoft Excel Spread Sheets and SPSS Version 20.0. In T2DM Patients with Normoalbuminuria shows a significant elevation of urinary nephrin but no variation in urinary albumin levels. The urinary albumin levels were significantly elevated in Group 3 subjects when compared to Group 1 and Group 2 ( P .0001**).
Real time learning during and after the pandemic: how to productively use chat and polling

ABSTRACT During the pandemic, students have been regularly engaged in what I call real time learning through chat and polling exercises. This is an exciting development, but one that also carries the risk of being poorly implemented and not achieving its intended learning outcomes. Four real time teaching methods are presented in this article for consideration by instructors. These methods activate the early stages of the learning process as students encounter and reflect on concepts, puzzles and cases. The resulting level of student engagement acts as a stepping-stone towards higher-level thinking. The four methods are: reproducing questions from polling organizations; asking prediction-oriented questions; repeating polls several weeks later; and, placing more attention on text-based entry. Teaching innovation here represents small changes in the classroom that can be adopted by a wide number of instructors, carrying discernible impacts on student learning. The data from this study suggest that well-designed use of the chat box is the most effective of the four teaching methods examined. The lessons derived from real time learning in social science courses, especially how students recognize the learning opportunities afforded by short writing activities, can be applied in other disciplines. Statement on Human Ethics This study was deemed by the university's human ethics committee as not requiring human ethics approval. While preparing this manuscript, the instructor took the following steps: the instructor set out to reflect and report on the students' work after the course was completed. the questionnaire was administered at the end of semester. The students' participation in the survey did not count towards their grade in the class and there were no repercussions for those who did not participate. Knowing who participated in the questionnaire would be impossible in any event. the focus group was entirely optional for students and it was conducted after grades had been submitted.
Transfer anxiety in parents of children transferred from pediatric intensive care units to general wards in South Korea: a hybrid concept analysis

Purpose This study aimed to analyze the concept of transfer anxiety in parents of children transferred from pediatric intensive care units to general wards. Methods The hybrid model by Schwarz-Barcott and Kim was used to analyze the characteristics of transfer anxiety in parents of children transferred from pediatric intensive care units to general wards. Results Transfer anxiety was defined by the following attributes: 1) stress concerning the adaptation process, 2) concern about the child’s condition worsening due to the parent’s caregiving, and 3) involuntary changes in daily life due to the treatment. Transfer anxiety has the following antecedents: 1) uncertainty; 2) a lack of knowledge about the illness, medical devices, and caregiving; and 3) a lack of social support. It resulted in 1) caregiver burden, 2) a decrease in the capacity for coping with caregiving, 3) delays in the child’s physical and psychological recovery, and 4) decreased quality of life. Conclusion It is necessary to develop an assessment scale that considers the attributes of transfer anxiety in parents of children transferred from pediatric intensive care units to general wards. Furthermore, an effective nursing intervention should be developed to reduce transfer anxiety.
Delivery Service Plan to make urban freight greener: a soft measure?

Introduction Personalised travel plans have been well documented in the literature and are centred around behaviour theory (Bamberg et al, 2011), however a DSP is a relatively new concept for transport research. Delivery Servicing Plans (DSPs) have been promoted in the UK as the equivalent of a workplace travel plan for freight (CPAS, 2010). This paper questions how similar and applicable are DSPs to a Sustainable Travel Plan and can this approach become a useful tool for transport demand management (TDM). To what extent may they improve air quality; reduce congestion, collisions, and overall supply chain costs; and thereby CO2 emissions?
The Promise and Limits of Leveraging Black Athlete Power Potential to Compel Campus Change

In the wake of developments at the University of Missouri in 2015, where Black athletes joined with Black student groups on campus and threatened a boycott of football until Black student demands for campus culture and leadership changes were agreed to, I have been asked on many occasions if I am saddened or discouraged by the need for campus battles today demanding changes that I fought for nearly 50 years ago. Quite the contrary. We should be neither surprised nor dismayed over the facts that battles thought won continue to be waged or that there are new battles being fought to sustain gains thought secured. Put most simply, THERE ARE NO FINAL VICTORIES! Only "THE STRUGGLE" and "THE PEOPLE" on whose behalf it is waged endure. All else is delusion and illusion, and in time inevitably will fade and pass away like the morning mist before the rising sun of a new day. Such are the lessons of biography and history informing my perspective, a perspective born of 50 years of experience on the "front lines" of struggle around issues at the interface of sport, race, and society and with this reality, I am not only at peace, I am pleased. What follows is an autoethnographic account of the cyclical nature of human history and how new technologies can become weapons that precipitate current sociopolitical movements. During the week of September 22, 1967 – over 48 years ago – I organized a movement in protest of institutionally entrenched anti-Black racism and discrimination in the policies, operations, and campus culture of San Jose State University (SJSU). As a former SJSU scholarship athlete, I made “leveraging the power potential” (Edwards, 2016) of the Black athletes on campus (who dominated the revenue-producing sports of football and basketball as well as track and field) the central feature of the movement’s change strategy. This tack was all the more legitimate because, at the time, the athletic department shared in and manifested many of the school’s anti-Black discriminatory dispositions (the one exception being its willingness to exploit Black athlete sports talent and to recruit Black athletes to that purpose in inordinately high numbers relative to Black representation in any other sector of campus life). Secondly, I organized and demanded university recognition of a Black student advocacy group, United Black Students for Action (UBSA). And most significantly, I threatened to organize a Black athlete boycott of the season-opening home football game against the University of Texas at El Paso if a list of demands were not met. Chief among those demands were:
Assessment of Antioxidant and Antimicrobial Property of Polyphenol-Rich Chitosan-Pineapple Peel Film

This work aimed to evaluate the antioxidant and antimicrobial capacities of pineapple peel extract-incorporated chitosan films to establish its utility as an active food packaging film. Total phenol and total flavonoids in ethanolic pineapple peel extract (11.1 ± 0.82 mg GAE/g sample, 3.86 ± 0.4 mg Quercetin/g sample) were determined to be higher than those in methanolic pineapple peel extract (7.98 ± 0.55 mg GAE/g sample, 2.37 ± 0.13 mg quercetin/g sample) and higher antioxidant activity was observed for pineapple peel ethanolic extract (PEE). Similarly, PEE-enriched chitosan film also reported greater antioxidant activity compared to pineapple peel methanolic extract (PME)-incorporated chitosan film. The total phenols, flavonoids, and significant antioxidant activity were accounted due to the contents of ferulic acids, quercetin, and kaempferol in both PEE and PME quantified via triple quadrupole LC/MS/MS system. These alcoholic extracts exhibited significant inhibitory zones against both Gram-positive (Bacillus cereus, Staphylococcus aureus) and Gram-negative (Escherichia coli, Salmonella typhimurium) food-borne bacterial strains. PME exhibited the lowest minimum inhibitory concentration and minimum bactericidal concentration (0.625 mg/ml) against B. cereus. Pure chitosan films at ≥7 log CFU/ml after 24 h showed lower log reduction for all the bacterial organisms, whereas the chitosan-PEE (at ≤5 logs CFU/ml) and chitosan-PME (at ≤6 log CFU/ml) films expressed higher log reduction for all the four bacterial isolates. Thus, this work led to the utilization of the pineapple peel waste as well as provided an alternative to nonbiodegradable packaging films.