Miracle-dz/UniFAR-FTUs huggingface dataset:
Examining Service Quality at the Destination Level: The Case of Malaysia

Studies on service quality have gained significant attention from practitioners, managers, and researchers in the tourism industry. Malaysia is experiencing an unstable and declining pattern in the rate of international tourists’ expenditure on services they receive in this country, highlighting a severe challenge in planning the right services to offer tourists since they refuse to spend on the services provided. Therefore, this research investigated the dimensions of service quality at the destination level to improve the quality of a destination. Self-administered questionnaires were distributed to international tourists from the United Kingdom and Australia at Kuala Lumpur International Airport. The pilot study’s data, involving 100 respondents, were tested using Exploratory Factor Analysis (EFA) and reliability analysis. Subsequently, 337 usable questionnaires were collected from fieldwork and analyzed using Confirmatory Factor Analysis (CFA). The study findings identified four dimensions of destination service quality: health and hygiene, accommodation, shopping, and information facilities. In addition, it suggested that tourism management and local citizens (Malaysians) should focus on these four dimensions to enhance the overall quality of service in Malaysia, thereby enhancing tourist satisfaction and spending on the services provided in the country. The limitation of this research was that the data were collected solely at Kuala Lumpur International Airport (KLIA). Future research may include other Malaysian international airports to strengthen the generalizability of the results.
Numerical integration of the blade-to-blade surface Euler equations in vibrating cascades

The unsteady aerodynamics of fluttering cascades is a demanding problem in the analysis of modern compressors. An algorithm has been developed for numerically integrating the Euler equations in biade-to-biade surface formulation. The method simulates all the interblade channels of an annular cascade. The equations are discretized in a grid that moves in order to follow the vibration of the blades. The equations are integrated using the explicit MacCormack scheme in finite-differ ence formulation. Mistuned vibration as well as standing-, traveling-, or influence-wav e modes may be readily simulated. Also, two other faster methods have been developed, simulating traveling and influence waves, respectively. A number of numerical results show the aptitude of the method to simulate both started and unstarted supersonic flow in vibrating cascades. A first comparison with available wind-tunnel data corroborates the validity of this approach to predict supersonic flutter of fans and compressors.
Development of a single stage roselle calyx extractor

An 8-litre capacity roselle calyx extractor was developed with Arduino based temperature controls ranging from 30 to 100⁰C. Performance evaluation conducted on the extractor showed that efficiency of the extractor increased as the weight of the calyces decreased at constant mass of water which ranged from 55% to 89%. The effect of extraction time (5, 10 and 15 minutes), process temperature (30, 50, 75 and 100⁰C) and calyx-water mass ratio (1:50, 1:20 and 1:10) on the pH, density and colour of the extract was determined. The pH ranged from 2.4 to 2.9 and density was from 1.02 to 1.05gcm-3. Statistical analysis conducted showed that temperature and calyx-water mass ratio has a linear significant effect (p<0.001) on all the responses while time had a linear significant effect (p<0.001) on all responses except density. Time and temperature had interaction significant effect (p<0.01) on pH, while temperature and calyx-water ratio had interaction significant effect (p<0.01) on the density of the extract. Calyx-water ratio had a quadratic significant effect (p<0.001) on the pH and colour of the extract. The contour plots presented the interactions between the factors and their responses. This study demonstrated that roselle calyces extract can be produced more efficiently than practices currently available and also that processing conditions are very important in the quality of extracts produced.
Characteristics of crash-involved drink and drug car drivers and motorcyclists

Abstract Objective Drug driving is an issue of growing concern among Australian jurisdictions, including South Australia. In order to have an appropriate response to drug driving in regard to policy and enforcement, it is important to have sound knowledge about the patterns of drug use among motorists and the associated risks of this behavior. Method To this end, this study examined the characteristics of 1,277 hospitalized road users in South Australia in the years 2014 to 2017, with reference to whether or not they tested positive for alcohol or other drugs (the three drugs tested for according to the South Australian Road Traffic Act (1961): THC, methamphetamine, MDMA). This examination used a database combining hospital data, police-reported crash data, licensing information, and the result of alcohol and drug tests conducted by Forensic Science SA. Results It was found that more motorists were positive for one or more of the three illicit drugs than for alcohol, reversing long established trends. Comparisons were made between alcohol and drug free motorists, alcohol positive motorists, drug positive motorists, and motorists positive for both drugs and alcohol, with drivers of cars and motorcyclists analyzed separately where possible. Findings include: that those combining drugs and alcohol only comprise a small proportion of hospitalized motorists; that drug drivers tend to be younger than other hospitalized motorists; that drivers are more likely to test positive to alcohol or methamphetamine, while motorcyclists are more likely to test positive to THC; motorists testing positive to drugs and/or alcohol tend to exhibit a range of other risky behaviors; and motorists testing positive to drugs and/or alcohol tend to sustain more severe injuries in the event of a crash. Conclusions Preventing drink and drug driving is important not only for reducing crash numbers but also injury severity in the event of a crash. Substance use differs by road user type and age, which has potential implications for enforcement practices.
False Data-Injection Attack Detection in Cyber–Physical Systems With Unknown Parameters: A Deep Reinforcement Learning Approach

This article studies the detection of discontinuous false data-injection (FDI) attacks on cyber–physical systems (CPSs). Considering the unknown stochastic properties of the process noise and measurement noise, deep reinforcement learning is applied to designing an FDI attack detector. First, the discontinuous attack detection problem is modeled as a partially observable Markov decision process (POMDP) and a neural network is used to explore the POMDP. In the network, sliding observation windows which are composed of the offline fragment historical data are used as the input. An approach to designing the reward in POMDP is provided to ensure the precision of the detection when there are even some state recognition errors. Second, sufficient conditions on attack frequency and duration to guarantee the applicability of the detector and the expected estimation performance are further given. Finally, simulation examples illustrate the effectiveness of the attack detector.
Formulate and Apply Plant Growth Promotion Rhizobacteria (PGPR) as Biofertilizer and Bioprotectant on Shallot Plantations

UPT Bulupountu Jaya is the one of many shallots or red onions and other vegetables production center in Sigi Regency. The farmers rely heavily on pesticide and chemical fertilizer in their business. Even, the residual pesticide on the plant is beyond permitted standard. The main factor is the lack of awareness and skills of the farmers towards environment-based cultivations and pest control. Our community service with regional featured product schematics, aim to spread the information about the technology of formulation and application of Plant Growth Promoting Rhizobacteria (PGPR) as biofertilizer and bioprotectant on red onion plantations. The methods that were going to be implemented, there are training, demonstration plot of technology application, and assistances. The result of our community service, shows that participants are really into this daily program in the moment, shown by the activeness of participants at various stages of activity. This program of our community service increases the farmers skill points to create own PGPR. For the clearest, about 70% participants increased their knowledge and skill to create PGPR and about 60% participants have had interest to develop and apply PGPR as biofertilizer. As doing so, we expect independent of the farmers from being rely on chemical inputs on red onion plantations.
Electrical Properties of Silicon Containing Arsenic and Boron

Electrical conductivity and Hall effect have been measured from 10\ifmmode^\circ\else\textdegree\fi{} to 1100\ifmmode^\circ\else\textdegree\fi{} Kelvin on single-crystal silicon containing arsenic and boron. Extrinsic carrier concentration is computed from Hall coefficient. Analysis of extrinsic carrier concentration indicates the ionization energy of arsenic donor levels to be 0.049 ev and of boron acceptor levels to be 0.045 ev for low impurity concentrations. Fermi degeneracy is found to occur in the range ${10}^{18}$ to ${10}^{19}$ ${\mathrm{cm}}^{\ensuremath{-}3}$ impurity concentration. Extrinsic Hall mobility is computed from Hall coefficient and conductivity. Curves of Hall mobility against resistivity at 300\ifmmode^\circ\else\textdegree\fi{}K are computed from theory and compared with experiment. The temperature dependence of lattice-scattering mobility is found from conductivity to be ${T}^{\ensuremath{-}2.6}$ for electrons and ${T}^{\ensuremath{-}2.3}$ for holes. From conductivity mobility and intrinsic conductivity, it is found that carrier concentration at any temperature below 700\ifmmode^\circ\else\textdegree\fi{}K is given by the expression: $np=1.5\ifmmode\times\else\texttimes\fi{}{10}^{33}{T}^{3}\mathrm{exp}(\ensuremath{-}\frac{1.21}{\mathrm{kT}})$. The temperature dependence of the ratio Hall mobility/conductivity mobility is determined for holes and electrons.
Speech perception in early infancy: Perceptual constancy for vowel categories

The young infant discriminates a single token of /a/ from a single token of /i/ and can successfully ignore variations in the pitch contour of these vowels [Kuhl and Miller, J. Acoust. Soc. Am. 59, S54(A) (1976)], but demonstrations that an infant perceives an inherent similarity in a male's /a/ and a female's /a/ are lacking. Three infants, 512‐ to 6‐months old, were tested in a task in which a head‐turn response was reinforced with a visual stimulus in the presence of a speech sound from one category but not in the presence of a speech sound from a second category. The infants were trained with a single synthetically produced /a/ and /i/ whose formant frequencies and fundamental frequency were appropriate for a male voice (rise‐fall pitch contour) and then tested with synthetic /a/ and /i/ tokens whose formant frequencies and fundamental frequencies were appropriate for female and child talkers, with both rising and rise‐fall pitch contours. Generalization to novel tokens was often times immediate. The .
Community Assistance in Preparing Local Resources-Based Organic Agricultural Production Facilities

The decreased soil carrying capacity is due to reduced soil organic matter content, caused by disproportionally larger use of inorganic fertilizers and synthetic chemical pesticides in farming activities than organic fertilizers and environmentally friendly weeds, disease, and insect pests control materials. Reducing the use of inorganic fertilizers and synthetic chemical pesticides could be done by using production facilities of organic agriculture in the form of organic fertilizers and synthetic non-chemical pesticides on a larger scale, which base materials are available in nature. The problem faced by farmers in using these inputs is the lack of awareness and skills in producing organic inputs. This community service program with competitive schematics aims to assist the community in preparing local resource-based organic production inputs in Uwe Nuni Village, Palolo District. Specifically, to increase the awareness and skills of farmers in producing organic inputs based on local resources. The method used for counselling and training is Focus Group Discussion (FGD) approach, as well as practice and demonstration plots, which also provide technical guidance on making compost and botanical pesticides, and organic-based plant cultivation techniques. The results of the community service program show that the implementation of counselling and training increases the community’s awareness, skills, and attitudes by 38%, 56% and 54%, respectively. The compost made during the technology training was made from cow and goat manure, while the botanical insecticides were made from quickstick (Gliricidia sepium) plant leaves, papaya leaves, and soursop leaves. These plants are potential resources in Uwe Nuni Village, Palolo District.
Improved Selective Segmentation Model Using One Level-Set

Variational segmentation models have proven to be extremely efficient for segmenting and tracking boundaries and in most cases all of the boundaries in an image. Such models are for global segmentation. For a large class of image segmentation tasks where only one object is required to be extracted automatically, global models cannot deliver the solution and we need selective segmentation techniques. In this paper, we propose a novel, variational and single level-set function for the selective segmentation task. The model is much faster to implement than the previously dual level set model by Rada-Chen [29] by having the same efficiency and reliability. In comparing with interactive image segmentation algorithm of Nguyen-Cai-Zhang-Zheng method [2], our model shows some improvement in some cases. Several new ideas are incorporated in this new work: i) the distance function is only needed optionally and its inclusion does not affect the result; ii) an adaptive parameter is introduced in the edge detection function; iii) a new area-based fitting term is added to enhance the model's reliability (different from the idea of minimizing the area of the object). We develop an additive operator splitting method for solving the resulting Euler-Lagrange equation. Test results show that the new model finds the desired local boundaries successfully in various challenging cases and indeed it is not much dependent on the prior information of markers or the distance function based on them. More importantly, the new model gives an overall improvement over the previous models and can be recommended for selective segmentation.
From bipolar to quadrupolar - The collimation processes of the Cepheus A outflow

We present new high-angular (∼2″) and -velocity (∼0.3 km s -1 ) resolution observations in the (J, K)= (1, 1) and (2, 2) ammonia lines toward Cepheus A using the VLA D-configuration. As previously reported, the high-density gas is mainly distributed in three clumps, Cep A-1, Cep A-2, and Cep A-3. Cep A-1 and Cep A-3 constitute an interstellar elongated structure (∼2'.3×0.'4, or ∼0.5×0.08 pc), with the stellar activity center located at its northwest edge. We find that Cep A-1 and Cep A-3 are located, respectively, between the two main pairs of the blue- and redshifted CO lobes of the quadrupolar molecular outflow. This implies that the interstellar disklike structure cannot collimate the bipolar outflow near its origin in the east-west direction
Comparative Analysis of the Self-Propelled Locomotion of a Pitching Airfoil near the Flat and Wavy Ground

In this paper, a pitching airfoil near flat and wavy ground is studied by numerical simulations. The kinematic features of the airfoil and the flow field around it are analyzed to reveal unsteady vorticity dynamics of the self-propelled airfoil in ground effect. The optimal pitching periods at different initial heights above flat ground are obtained, which make the pitching airfoil achieve the maximum lift-to-drag ratio. Compared with flat ground, at the same initial height, the optimal pitching periods vary with the shape of ground. The structure and the strength of the wake vortices shedding from the airfoil are adjusted by the wavelength of ground. This leads to the changes of amplitude and occurrence times of the peak and valley of lift and drag force. The results obtained in this study can provide some inspiration for the design of underwater vehicles in the ground effect.
The Impact of Snapchat Use on Self-Image and Inclination Toward Cosmetic Procedures in Saudi Arabia

Background Exposure to social media gives individuals more significant body image concerns, and many studies have emphasized that people with a negative body image are more interested in cosmetic surgery. So, increased exposure to celebrities with aesthetic images and exposure to cosmetic Surgery information and advertisements lead to negative body image in the exposed populations. Aim This study aimed to determine the impact of social media on self-image inclination toward cosmetic procedures. Subjects and methods This is a cross-sectional study conducted among an adult population in the Kingdom of Saudi Arabia. A self-administered questionnaire was distributed among participants using social media platforms. the questionnaire was sought information on socio-demographic characteristics (age, gender, education, etc.), the influence of social media on the decision to undergo cosmetic surgery, and the Acceptance of Cosmetic Surgery Scale (ACSS). Results Among the 1064 participants recruited, 41.4% were aged less than 25 with females outnumbering men substantially (82.1). Twenty-seven of the respondents increased their desire to undergo a cosmetic procedure due to advertisements or publications posted on social media. The total mean ACSS score was 3.36 (SD 1.69) out of 10 points, indicating lower acceptance. The socio-demographic variables associated with increased ACSS scores were being older, female, educated, having been married, and previous history of cosmetic surgery. Conclusion Despite the influence of Snapchat on body image, there was a low inclination to undergo cosmetic surgery among the general population in Saudi Arabia. The tendency to undergo cosmetic surgery tends to increase due to the influence of increased social media following, social media influencers, and advertisements and publications posted on social media platforms. More research is warranted to determine the perspectives of the general public regarding the influence of social media platforms on the inclination to undergo cosmetic surgery procedures for the enhancement of body appearance.
Relations between interannual and intraseasonal monsoon variability as diagnosed from AMIP integrations

Monsoon variability on intraseasonal and interannual time‐scales is analysed using data from five 10‐year European Centre for Medium‐Range Weather Forecasts Atmospheric Model Intercomparison Project integrations, which differ only in their initial conditions. the results show that monsoon fluctuations within a season and within different years have a common dominant mode of variability. the spatial pattern of the common dominant mode in precipitation has a pronounced zonal structure, with one band of anomalous rainfall extending from 20°N to 5°N, covering most of the land areas, with the other band, of opposite sign, lying between 5°N and 10°S, mostly over the Indian Ocean. This mode therefore describes both the active/break monsoon spells associated with fluctuations of the Tropical Convergence Zone (TCZ) between the continental and the oceanic regime and the principal pattern of interannual variability of monsoon rainfall. In the observations the oscillations between active and break monsoon spells have similar behaviour, although the model is deficient in representing the rainfall variability over India.
Imaging Modalities Used for Frameless and Fiducial-Less Deep Brain Stimulation: A Single Centre Exploratory Study among Parkinson’s Disease Cases

Deep brain stimulation (DBS) is a beneficial procedure for treating idiopathic Parkinson’s disease (PD), essential tremor, and dystonia. The authors describe their set of imaging modalities used for a frameless and fiducial-less method of DBS. CT and MRI scans are obtained preoperatively, and STN parcellation is done based on diffusion tractography. During the surgery, an intraoperative cone-beam computed tomography scan is obtained and merged with the preoperatively-acquired images to place electrodes using a frameless and fiducial-less system. Accuracy is evaluated prospectively. The described sequence of imaging methods shows excellent accuracy compared to the frame-based techniques.
Dynamic Response of a Partially Embedded Bar Under Transverse Excitations

This dissertation is concerned with the dynamic response of a finite flexible bar partially embedded in a half-space, under transverse loadings. The loadings are applied at the unembedded end of the bar and may, in general, be a combination of time-harmonic shear and moment. The problem is intended to serve as a fundamental idealization for the dynamic analysis of piles or other embedded foundations whose flexibilities are not negligible. By treating the bar as a one-dimensional structure and the half-space as a three-dimensional elastic continuum, the interaction problem is formulated as a Fredholm integral equation of the second kind. The essential tool required in the formulation is a group of Green's functions which describe the response of an elastic half-space to a finite, distributed, buried source which acts in the lateral direction. By means of a technique developed for a class of three-dimensional asymmetric wave propagation problems, the Green's functions are derived as integral representations. A numerical procedure for the computation of the semi-infinite Hankel-type integrals involved is presented which is free of the basic difficulties commonly encountered in such problems. Owing to the special nature of the kernel function, a numerical scheme which contains the essence of quadrature and collocation techniques is developed for the solution of the governing integral equation. Selected results for the interaction problem are presented to illustrate various basic features of the solution. In addition to furnishing the compliance functions commonly used in soil-structure interaction studies, the solution should prove useful in providing a basis for the assessment and improvement of approximate and numerical models currently employed for such analyses.