Miracle-dz/UniFAR-FTUs huggingface dataset:
Understanding Consumer Buying Intention of E-Commerce Airfares Based on Multivariate Demographic Segmentation: A Multigroup Structural Equation Modeling Approach

The internet offers enormous development opportunities for airline firms and a lot of information for consumers to pick the finest available options. This research aims to study the consumer buying intention of e-commerce airfares in an emerging economy based on the technology acceptance model. This article employed a sample of 3064 respondents at six airports in Thailand. It used cluster analysis (a multivariate analysis approach) to determine two main customer segments and then used a structural equation modeling (SEM) technique utilizing demographic segmentation as a moderator to explain the behaviors of those two segments. The findings demonstrated two customer segments: (1) the older with high and middle-income segment, and (2) the young with low-income segment. The empirical results revealed that price sensitivity and perceived ease of use substantially impacted behavioral intention to use e-commerce airfares in both segments. The users from segment (1) are more likely to look for the fun experience and entertainment value of using e-commerce airfares than those from segment (2). However, perceived usefulness is unlikely to be a vital factor in consumers’ purchasing decisions about using e-commerce airfares. It is recommended that airline companies and online travel agencies should consider perceived ease of use, price sensitivity, and hedonic motivation when implementing e-commerce airline websites for selling tickets.
Synchronous Communication Technology for Remote Academic Advising at a State University

The use of synchronous communication technology has significantly increased in recent years for communications in online learning and instruction, especially since the COVID-19 pandemic. Synchronous communication technology, such as Zoom, Google Meets, and Microsoft Teams, is widely adopted by academic advisors to continue their advising services as many universities were forced to move their traditional in-person academic advising to remote academic advising (RAA) in an online format. In this context, we explored the knowledge, experiences, and perceptions of students and academic advisors at a state university using synchronous communication technology for RAA during the COVID-19 pandemic. The study includes data collected from 539 sets of data from students and 28 from advisors. Through descriptive data analysis, the study revealed knowledge and a variation of perception gaps among students, in addition to students and academic advisors for RAA. With research results, we discuss the implications for effective RAA, concluding with suggestions for effective uses of synchronous communication technology to conduct RAA for academic advisors.
Analysing EEG brain signals using independent component analysis techniques

The use of electroencephalography (EEG) in the medical field is evident in the effect it has on diagnosis and treatment of patients who suffer from some form of brain problem. These signals however once collected are overlayed with artifacts. This thesis considers this problem and seeks to solve using popular methods in the form of Independent Component Analysis (ICA) and Wavelet Transform (WT). Independent component analysis (ICA) is a popular blind source separation (BSS) technique that has proven to be promising for the analysis of EEG data. There are different estimators to developing these ICAs. Mutual Information is one of the most natural criteria when developing an estimator. Although utilized to some level it has always been difficult to calculate. In this thesis I present a new algorithm which utilizes a contrast function related to Mutual Information based on B-Spline functions. This thesis also investigates the creation of an algorithm which is based on a merger of Independent Component Analysis and Translation Invariant Wavelet Transform and goes on to merger the B-Spline ICA with the Translation Invariant Wavelet Transform. In addition I apply Unscented Kalman Filtering as it does not require any prior signal knowledge. Each algorithm will be examined and compared to ones in literature tackling the same EEG problems; results will be drawn on the base of comparative tests on both synthetic and real.
Inflammatory agriculture: Political ecologies of health and fertilizers in India

Across India, many farmers contend that synthetic nitrogenous fertilizers do more than impact soils, but also lead to tasteless food crops and weakened bodies more susceptible to aches, pains, and diseases. Although these complaints, long-documented across South Asia, have been theorized as embodied critiques of development or as reflecting hybrid epistemologies, there has been strikingly little focus on the potential biophysical currents that may underpin these perceptions of fertilizer harm. This paper works to fill this gap, analyzing qualitative data collected from farmers in two remote eastern Indian districts using an “integrated” political ecology of health (PEH) framework that utilizes two main approaches to examine bodily materiality and health. In particular, the framework looks at the multi-scalar political economies, cultural forms of meaning-making, as well as the visceral, affective ways that respondents come to see synthetic fertilizers as the cause of barren lands, tasteless foods, and weakened bodies. The article then deploys a critical reading of bioscientific literature to interpret respondent narratives and zoom in onto potential bio-social mechanisms that may help illuminate claims of fertilizer harm in new ways. In particular, I present evidence around how phytochemicals—literally chemicals produced by plants—may shift due to chemical fertilizer use in ways that may matter for hunger and health. Yet, not losing sight of the affective ways crops are grown, consumed, and discussed, I also highlight research examining how beliefs and perceptions measurably modify physiological responses to food in positive or adverse ways through the still ill-understood placebo/nocebo effect. The goal of such analysis is not to present a tidy conclusion to questions of fertilizer–health connections but demonstrate how a PEH that remains attentive to power, discourse, and materiality can bring disparate streams of thought together to forge pathways for transdisciplinary research and practice.
Phenotypic and genetic analysis of a peach and a Japanese plum core collection for pre-breeding and distinctness assessment

To know the relationships between phenotypic and genetic variables in a germplasm collection of fruit crops is useful a pre-breeding and cultivar distinctness. A core collection of 23 peaches/nectarines ( Prunus persica (L.) Batsch), and 16 Japanese plum ( Prunus salicina Lindl. var. salicina ) cultivars were evaluated for 33 and 29 characteristics (botanical/ productive) respectively during two growing seasons. Also, eight specific simple sequence repeats (SSRs) markers were analyzed in both species. Principal components analyses revealed seven characteristics (related to the size of the fruit and the firmness of the pulp) as the most important for the 23 peach/nectarine cultivars and four characteristics (yield, fruit size, soluble solids, and harvest time) for the 16 Japanese plum cultivars. These analyses revealed three cultivars of peaches (Diamond Princess, Dixon, and Dr. Davis) and three of nectarines (Ruby diamond, Artic sweet, Summer fire) with the highest values for fruit size and pulp firmness. Four Japanese plum cultivars (Angeleno, Flavor Rich, Red Heart, and Pink Delight) showed the highest values of yield, fruit size, soluble solids, and harvest time. Elite germplasms to carry out a breeding program were identified from both the phenotypic and genetic analysis. Additionally, cultivar-specific SSR alleles were identified and are a relevant tool for cultivar distinctness.
Design of a textile antenna with artificial magnetic conductor for wearable applications

With the development of modern wireless technologies and the miniaturization of antennas and electrical systems, the use of antennas on the human body for Wi‐Fi applications has become important. However, integrating the antenna near the body immediately raises the question about the protection of the body and the radiation effectiveness of the antenna. One solution that has recently attracted great attention is the use of high impedance surfaces (HIS), which is studied here for the antennas integrated on clothes. Indeed, the HIS greatly reduces the radiation back face of the antenna, thus reducing the value of the specific absorption rate in the presence of the body. In this article, we present a dual‐band antenna placed above an artificial magnetic conductor (AMC). The AMC used has the smallest dimensions and makes it possible to obtain the behavior of a perfect magnetic conductor at 2.45 and 5.8 GHz.
Assessment of Knowledge and Attitude of Dental Students towards HIV and Its Oral Manifestations in Saudi Arabia—A Cross-Sectional Study

Background: It is essential for practicing dentists to have adequate knowledge of HIV/AIDS and its implications in the dental practice. Their attitudes should also be up to the professional expectations. This study aimed to assess knowledge of HIV/AIDS infection and attitudes towards its patients among dental students in Saudi Arabia. Methods: A questionnaire was prepared and distributed among a sample of dental students in Saudi Arabia. Twenty questions related to knowledge, attitudes, and oral manifestation of HIV were presented. Results: A total of 405 questionnaires were completed (67% response rate). Participants showed low knowledge of safety regarding HIV (39.5%) and 44.2% indicated that they would take an HIV test after needle stick injury. The proportion of correct answers regarding transmission of HIV through saliva, cardiopulmonary resuscitation, and aerosols by hand pieces was 41%, 37.5%, and 26.4%, respectively. Almost 50% of the surveyed dental students expressed unwillingness to treat HIV-positive patients. Poor knowledge was noted regarding oral manifestations of HIV (32.7%). Of the participants, 57.8% indicated that infection control procedures are very important for the treatment of HIV patients and 50.6% believed that a dentist can make a decision to reject the treatment of HIV patients. According to the participating dental students, the three major oral manifestations in HIV patients are hairy leukoplakia (47.4%), oral candidiasis (44.7%), and Kaposi’s sarcoma (43.5%). Conclusion: Inadequate knowledge and unprofessional attitude towards HIV/AIDS patients were identified among this group of dental students in Saudi Arabia. Dental educators and health care planners in Saudi Arabia should plan to promote the knowledge and attitudes of dental students in Saudi Arabia towards the treatment of HIV patients.
Attribution analysis of the spatiotemporal variation in water balance in a typical semiarid basin in northern China

Climate change and anthropogenic factors have significantly impacted hydrological regimes, especially in semiarid regions. Using the trend‐free pre‐whitening Mann–Kendall (TFPW‐MK) test and linear regression, trends of precipitation, temperature, runoff, and water balances from different spatiotemporal scales were analysed during the past sixty years in the Upper Yongding River Basin (UYRB). Based on the Choudhury‐Yang equation, the contributions of climate change and human activities to runoff variation were further quantified in five mountainous catchments, and the actual effects of climate change and human activities on the water balance in the whole UYRB were also discussed. The results suggest that the UYRB has become much warmer and drier. The lower annual precipitation and intensity in summer were directly attributed to runoff reductions. Intra‐annual scale analyses of meteorological, hydrological and biological responses helped the comprehensive interpretation of the runoff trends. Human activities, including agricultural irrigation, were the main causes for runoff reduction, especially in the middle and lower reaches, and the contribution of human activities increased gradually in recent decades. The water balance changed drastically temporally, with the precipitation being converted less to runoff and more to evaporated fractions, which was also due to the second order effects of climate change and vegetation improvement. It is suggested that low water‐consumption plant species and the related water‐saving techniques in agriculture and afforestation should be introduced for the sustainable development in the similar regions.
Ripple Suppression in Broadband Microwave Photonic Phase Shifter Frequency Response

This paper presents a detailed investigation on the cause of ripples in the frequency response of a microwave photonic phase shifter implemented using a 90° hybrid coupler. It was found that an unwanted radio frequency (RF) modulation sideband is generated at the modulator output due to the 90° hybrid coupler amplitude and phase imbalance. This resulted in phase shifter output RF signal amplitude variation and phase deviation. Experimental results demonstrated that incorporating an optical filter in the phase shifter structure can reduce the amplitude variation and phase deviation from 4.2 dB to 2.2 dB and from ±12° to ±3.8°, respectively, over a wide frequency range. A comparison of the loss and the dynamic range of the microwave photonic phase shifter implemented using a 90° hybrid coupler with a conventional fiber optic link is also presented.
HMDRL: Hierarchical Mixed Deep Reinforcement Learning to Balance Vehicle Supply and Demand

The imbalance of vehicle supply and demand is a common phenomenon that influences the efficiency of online ride-hailing systems greatly. To address this problem, a three-level hierarchical mixed deep reinforcement learning method (HMDRL) is proposed to reposition idle vehicles. A manager operates at the top level, where action-abstraction is conducted from the time dimension and is adaptive for spatially scalable and time-varying systems. Coordinators locate at the middle level and a parallel coordination mechanism that is independent of the decision order is designed to improve the efficiency of the repositioning. The bottom level is composed of executive workers to reposition vehicles with mixed states and the states contain spatiotemporal information of agents’ neighbor areas. Two reward functions are designed for the manager and the coordinators, respectively, aiming to improve the training effect by avoiding sparse rewards. A simulator based on real orders is designed and HMDRL is compared with six methods. Experimental results demonstrate that HMDRL outperforms all the other methods. In three comparison experiments, the order response rate is increased by 0.62% to 8.29%, 1.5% to 7.78%, 1.18% to 4.75%, respectively.
THE NON-DEGENERACY OF THE SKEW-SYMMETRIC BILINEAR FORM OF THE FINITE DIMENSIONAL REAL FROBENIUS LIE ALGEBRA

A Frobenius Lie algebra is recognized as the Lie algebra whose stabilizer at a Frobenius functional is trivial. This condition is equivalent to the existence of a skew-symmetric bilinear form which is non-degenerate. On the other hand, the Lie algebra is Frobenius as well if its orbit on the dual vector space is open. In this paper, we study the skew-symmetric bilinear form of finite dimensional Frobenius Lie algebra corresponding to its Frobenius functional. The work aims to prove that a Lie algebra of dimension is Frobenius if and only if the -th derivation of the Frobenius functional is not equal to zero. Indeed, this condition implies that the skew-symmetric bilinear form is non-degenerate and vice versa. In addition, some properties of Frobenius functionals are obtained. Furthermore, the computations are given using the coadjoint orbits and the structure matrix. As a discussion, we can investigate these results in the algebra case whether giving rise to a left-invariant K hler structure of a Frobenius Lie group or not.
Simulations of relativistic jet formation in compact radio sources

I review recent numerical and analytic work on the magne-tohydrodynamic (MHD) model of jet formation in active galactic nuclei, with an emphasis on producing the highly relativistic outflows and high radio luminosities observed in the most powerful sources. Ground and space very long baseline interferometry imaging observations have shown that collimated, relativistic flow at speeds up to a Lorentz factor r == 10 (0.995 c) and greater occur in radio galaxies and quasars (Vermeulen 1996; Tingay et ale 2001). Such high jet speeds are thought to be evidence that the they are accelerated and collimated from deep within the potential well of an accreting supermassive black hole (M == 10 6- 10 M 8 in size) at the center of the active galaxy. The total jet power for a given black hole mass can be as high as L j et ~ 1045.5ergs-1m~·12, where m9 == M/I0 9 M8 (Meier 2001c). A promising model for producing and collimating relativistic jets is the mag-netohydrodynamic (MHD) acceleration model (Lovelace 1976; Blandford 1976). This model may be able to account for jet collimation, acceleration to relativistic velocities, and the magnetic fields associated with detected synchrotron emission, all while operating within the accretion paradigm for active galaxies. Recent results on numerical simulations of jet production by magnetized accretion disks also have been reviewed by Meier & Koide (2000), Meier (2001a; 2001b), and Meier et ale (2001). These simulations are: Time-dependent, non-relativistic, strong field, thick disk (Uchida et ale 2000). A strong
Factors Affecting Anxiety in Older Adults in South Korea

Abstract The older adult population is rapidly increasing in South Korea. Because older adults experience more loss, their anxiety related to aging may be more serious than that of other age groups. The present study analyzed the demographic, health, economic, and psychological factors that affect anxiety in older adults. Hierarchical regression was used to analyze data on 1,055 individuals over 65 years of age from the Survey on Social and Psychological Anxiety of the Korean Society in 2015. Marital status, education, health status, drinking status, degree of preparation for old age, and depression had significant effects on anxiety in older adults. This study suggests practical and policy measures for older adults to alleviate their concerns and anxiety about aging. Suggestions are made for successful aging in contemporary society, which include strengthening the care system, revitalizing health promotion projects, and implementing health education programs. Future studies should examine several measures to reduce or prevent anxiety in older adults.
Activation of Peripheral Cannabinoid Receptors Synergizes the Effect of Systemic Ibuprofen in a Pain Model in Rat

Pharmacological synergism is a current strategy for the treatment of pain. However, few studies have been explored to provide evidence of the possible synergism between a non-steroidal anti-inflammatory drug (NSAID) and a cannabinoid agonist, in order to establish which combinations might be effective to manage pain. The aim of this study was to explore the synergism between ibuprofen (IBU) and the synthetic cannabinoid WIN 55,212-2 (WIN) to improve pain relief by analyzing the degree of participation of the CB1 and CB2 cannabinoid receptors in the possible antinociceptive synergism using an experimental model of pain in Wistar rats. First, the effective dose thirty (ED30) of IBU (10, 40, 80, and 160 mg/kg, subcutaneous) and WIN (3, 10, and 30 µg/p, intraplantar) were evaluated in the formalin test. Then, the constant ratio method was used to calculate the doses of IBU and WIN to be administered in combination (COMB) to determine the possible synergism using the isobolographic method. The participation of the CB1 and CB2 receptors was explored in the presence of the antagonists AM281 and AM630, respectively. The combination of these drugs produced a supra-additive response with an interaction index of 0.13. In addition, AM281 and AM630 antagonists reversed the synergistic effect in 45% and 76%, respectively, suggesting that both cannabinoid receptors are involved in this synergism, with peripheral receptors playing a relevant role. In conclusion, the combination of IBU + WIN synergism is mainly mediated by the participation of the CB2 receptor, which can be a good option for the better management of pain relief.
Genotypic and Phenotypic Expression of Antibiotic Resistance Patterns of Uropathogenic Enterobacteriaceae

Aim To determine the antibiotic resistance patterns, detection of carbapenemase genes in uropathogenic bacilli belonging to the Enterobacteriaceae family and to correlate it with clinical data. Materials and Methods Identification and antibiotic sensitivity testing of the uropathogenic Enterobacteriaceae was done by using VITEK2 Compact (C) system. Multiplex PCR was used to detect blaIMP, blaKPC, blaNDM1, blaOXA −48, and blaVIM genes. Results Out of 1602 urine samples, 417 (26%) showed significant growth, and in these 311 (74.6%) belonged to the Enterobacteriaceae family. Escherichia coli showed a relatively low rate of resistance to nitrofurantoin (17/205; 8.3%), with the majority of the isolates showing a MIC value of ≤16 µg/mL when compared to Klebsiella spp. (55/86; 64%), with MIC values for the majority of isolates being 128 µg/mL. Klebsiella spp. showed a relatively low rate of resistance to nalidixic acid (48/86; 55.8%) when compared with E. coli isolates (179/205; 87.3%). Out of 145 isolates tested, we found blaNDM in 11 (7.58%), bla OXA −48 in 8 (5.51%), bla VIM in 4 (2.75%), bla KPC in one (0.6%) and blaIMP in none of the isolates. Of these 3 isolates were carbapenem sensitive, the rest were resistant. Conclusion Most of the isolates were sensitive to fosfomycin, carbapenems and resistant to cephalosporins and nalidixic acid. We detected carbapenemase genes in 13 (59%) out of 22 carbapenem resistant isolates and 3 (2.4%) out of 123 carbapenem sensitive isolates.
Representations of automorphisms on differentials of function fields of characteristic p.

For the case that K is the field of complex numbers, a complete answer has been given. In response to a query of Hecke, Chevalley and Weil [2] determined the structure of Ωρ s a representation space for G. In particular, they proved that if F/E is an unramified extension, then Ωρ is the direct sum of one identity representation of degree l and gE — l regul r representations, gE being the genus of E. Their proof relies on the complete reducibility of QF.