Tourist Satisfaction Level of Front Office Department Staff Services at Tanadewa Resort & Spa

The purpose of this study is to analyze customer satisfaction on the service of the front office department staff at Tanadewa Resort & Spa and to describe the indicators that need to be improved and maintained by the front office department staff at Tanadewa Resort & Spa. The sample used in this study were tourists who stayed at Tanadewa Resort & Spa in March - July 2021. The sampling technique used was incidental random sampling with a total sample of 50 respondents. Data were collected by questionnaires distributed to respondents, then the data obtained were processed using SPSS version 26. The analytical techniques used were servqual analysis and Importance Performance Analysis. Servqual is used to analyze the level of tourist satisfaction with services obtained which can be seen from the gap results, while Importance Performance Analysis is used to group service quality indicators into a Cartesian diagram to describe indicators that need to be improved and maintained. The results of this study indicate that customer satisfaction with the service of the front office department staff at Tanadewa Resort & Spa is still not good, because of the 15 service quality indicators there are 9 indicators with negative gap values ​​and 6 indicators having positive gap values. And there are 4 indicators whose performance must be improved and 5 indicators whose performance must be maintained by the front office department staff at Tanadewa Resort & Spa in order to increase customer satisfaction.

Optical applications of transition metal ion doped phosphate glasses

The transition metal ion-doped lithium phosphate glasses are prepared with a novel composition by melt quenching method, XRD patterns revealed their characteristic amorphous nature. The structural and physical properties of the prepared glasses are significantly varying with the increased concentration levels of dopant. Optical absorption and transmission spectra of the glass samples are analyzed. The absorption peaks are observed in ultraviolet, visible and infrared regions.The direct and indirect energy band gap values are decreasing while Urbach's energy values are increasing as the concentration levels of dopants are increasing. The obtained energy band gap values are in the range of semiconductor materials. The optical transmission spectra of these transition metal ion-doped glasses reveal their application as bandpass filters with filtering ability in UV or Visible regions at double and triple wavelengths and hence useful as dual band-pass filters. The glasses with <10 full width half maximum(FWHM) values are useful for narrowband lasers.

HOMO–LUMO Gaps and Molecular Structures of Polycyclic Aromatic Hydrocarbons in Soot Formation

A large number of PAH molecules is collected from recent literature. The HOMO-LUMO gap value of PAHs was computed at the level of B3LYP/6-311+G (d,p). The gap values lie in the range of 0.64–6.59 eV. It is found that the gap values of all PAH molecules exhibit a size dependency to some extent. However, the gap values may show a big variation even at the same size due to the complexity in the molecular structure. All collected PAHs are further classified into seven groups according to features in the structures, including the types of functional groups and the molecular planarity. The impact of functional groups, including –OH, –CHO, –COOH, =O, –O– and –CnHm on the bandgap is discussed in detail. The substitution of ketone group has the greatest reduction on the HOMO-LUMO gap of PAH molecules. Besides functional groups, we found that both local structure and the position of five-member rings make critical impacts on the bandgap via a detailed analysis of featured PAHs with unexpected low and high gap values. Among all these factors, the five-member rings forming nonplanar PAHs impact the gap most. Furthermore, we developed a machine learning model to predict the HOMO-LUMO gaps of PAHs, and the average absolute error is only 0.19 eV compared with the DFT calculations. The excellent performance of the machine learning model provides us an accurate and efficient way to explore the band information of PAHs in soot formation.

Exploring educational service quality and improvement priorities from the viewpoints of health sciences students using the SERVQUAL model

Background In higher education institutes, there are competitive and tussling environments to provide students with a high educational and service quality. Service quality is the key to meet or exceed student expectations. The quality of health systems, therefore; would be directly dependent on the quality of medical sciences education. In the current study, the modified SERVQUAL model was applied to assess the quality of the educational service provided at King Abdulaziz University (KAU) in Saudi Arabia. Methods This is a descriptive, cross-sectional study that was conducted within the Faculties of Medicine, Applied Medical Sciences, Dentistry, and Pharmacy. Through applying the modified SERVQUAL model, the gap between students' perceptions and expectations was calculated and correlated with other demographic data. The ratio of students’ perception to their expectation was calculated as a probe of student satisfaction in the current educational services to enable prioritizing items for improvement. Results The response rate was 89% (n = 266). Out of the 266 participants, 87% were females and 13% were males. Comparisons between the gap values of male and female students showed a significant difference in the assurance and responsiveness dimensions of the educational service quality at KAU. The results showed that all items have negative gap values (except item 24). The findings showed a significant difference of students’ opinion in SERVQUAL dimensions among different Faculties except in empathy. Conclusion The findings of this study showed that all dimensions were not up to the expectations of students. Reliability dimension and its items should be given the highest priority for improvement based on gap, ratio, and service improved matrix. The findings of this study will be very useful for the higher management to design the University Strategic Plan with well-defined direction and priorities for the improvement processes based on SERVQUAL outcomes.

Effect of Sintering Time on The Marginal and Internal Fit of Monolithic Zirconia Crowns Containing 3-4 Mol% Y2O3

Background Short-time sintering may offer advantages including saving time and energy but there is limited evidence on the effect that altering sintering time has on the accuracy of monolithic zirconia crowns. The purpose of this in vitro study was to investigate the effect of shortened sintering time on the marginal and internal fit of 3Y-TZP (three mol% yttria-stabilized tetragonal zirconia polycrystal) and 4Y-TZP (four mol% yttria-stabilized tetragonal zirconia polycrystal) monolithic crowns. Methods Sixty monolithic zirconia crowns were fabricated for the maxillary first molar tooth on the prefabricated implant abutment. Groups were created according to the material composition: 3Y-TZP Generation 1 (alumina wt; ≤0.5%, < 15% cubic phase), 3Y-TZP Generation 2 (alumina wt; ≤0.05%, < 15% cubic phase) and 4Y-TZP (alumina wt; ≤0.05%, > 25% cubic phase). Two different sintering protocols were performed: same final sintering temperature (1500°C) and various rates of heating (10°C/min and 40°C/min), cooling down speed (-10°C/min and − 40°C/min), holding time (45 and 120 minutes), and total sintering time (approximately 2 and 7 hours, respectively). The marginal and internal fit of the crowns were determined using the silicone replica technique. Comparisons between groups and sintering times were analyzed using two-way ANOVA. Pairwise multiple comparisons were performed using the t-test (p < 0.05). Results The mean marginal gap values of 4Y-TZP zirconia revealed statistically significant increase for the speed sintering protocol (p < 0.0001), while no difference was observed between the sintering protocols for the mean marginal gap values of 3Y-TZP groups. Conclusions Although all groups showed clinically acceptable gap values (<120 µm), altering the sintering time had an effect on the marginal fit of the crowns manufactured from 4Y-TZP zirconia. Shortening the sintering time may lead to differences within clinically acceptable limits. The manufacturer's recommendations according to material composition should be implemented with care.

Comparative Appraisal of Critical Gap Estimation Techniques in the Context of U-turning Vehicles

Critical gap is a crucial factor for capacity estimation and safety evaluation at uncontrolled mid-block median openings (MBMOs). The U-turning vehicle makes a U-turn when a sufficient gap between two fast-moving vehicles is available in the approaching through traffic (ATT) stream. Even though, worldwide, temporal gaps are extensively used, the spatial gap is an important parameter that significantly affects minor street vehicles’ safety (U-turning vehicles in this study). The present research, undertaken in India, focuses on estimating the temporal and spatial critical gap of U-turning vehicles at uncontrolled MBMOs. The collected data were analyzed for six different types of U-turning vehicles at varying approaching through traffic volume (ATTV). For critical gap estimation, four different critical gap estimation techniques, namely, modified Raff method (MRM), Ashworth method, binary logit model (BLM) method, and occupancy time (OT) method were employed, separately. From the analysis, temporal and spatial critical gaps were observed to vary between different types of vehicle, and it was also observed to vary with ATTV. The critical gap values of this study were found to be smaller than the critical values reported in developed countries, signifying the aggressive driving nature of drivers in developing countries. A detailed appraisal of the different critical gap estimation methods has been carried out. From this analysis, the OT method was found to provide the closest critical gap values with the published literature compared with other methods. Lastly, the findings from the present study will be useful for capacity estimation and safety evaluation at MBMO.

THE REPRESENTATION OF SOCIETAL GAP IN THE FILM PARASITE

Societal gap is a phenomenon that exists between the layers of society which creates mass significant differences between it. Through the movie Parasite, Bong Joon Ho successfully portrayed a visualization of the societal disparity issue that happens between two South Korea families with different economic backgrounds. This research’s sole purpose is to analyze and evaluate the representation of societal gap which is depicted thoroughly in Parasite’s filmography. This research uses the method of qualitative research with John Fiske’s semiotic analysis. The subject is the movie Parasite which is directed by Bong Joon Ho. The data is obtained by the method of observing and documentation. The data’s unit of analysis is picked solely by the scenes that interpret signs of societal gap, which rounds up to 31 scenes. The data’s examination technique uses the technique of source’s triangulation. The research has brought up a few results such as, (1) The reality level and societal gap is represented in aspects of appearance, the way each families speak, behavior, movements, expression, and the environment that they reside at. (2) The level of representation and societal disparity is illustrated through aspects of the film such as, camera, lighting, music, and voices. (3) The level of ideology and portrayals of societal gap values can be assured to contain values of socialists and capitalists. In the aspect of socialists, the societal gap is seen as something that stands out because of the significant differences that exist between the different layers of society. Meanwhile, the capitalist values can be seen in how the movie has portrayed how a person with a higher position in the society is the capital holder and the ones that exist in the middle to the lower class of society depends themselves on the ones that resides on the higher class of society.

Assessment of internal fit and micro leakage of conventionally fabricated ceramometallic restoration versus CAD wax and press veneering (in-vitro study)

Statement of problem Accuracy of internal fit and microleakage for CAD-CAM systems used in metal coping fabrication and veneered with layering or pressing porcelain in ceramometallic restoration is unclear. Material and methods A master metal die was milled to resemble the right mandibular first molar preparation for coverage with ceramometallic restoration. Master die was duplicated to twenty-four resin specimen dies.They were divided into two groups according to metal coping construction technique using either conventional (C) or CAD (D) wax. Each group was subdivided into two subgroups (n = 6) according to the technique of porcelain veneering (layered or pressed) to fabricate ceramometallic restorations, where subgroup (CL, DL) were conventionally layered by porcelain and (CP, DP) were press veneered. A standardized thickness of metal and porcelain was performed in all specimens as per manufacturer’s instructions for techniques ceramometallic restoration construction. Evaluation of internal fit was done with silicone replica technique using stereomicroscope at ×24 magnification where the thickness of silicon layer was measured at 20 reference points on each specimen. Then specimens were subjected to thermocycling. Sectioned specimens were assessed for microleakage using a stereomicroscope at ×12 magnification along die-cement interface with a five scale score. Results Mean internal gap values of veneering showed a statistically nonsignificant difference between specimens made with layering(L) and pressing(P). Different techniques of wax construction showed a non-significant difference in internal gap values between specimens made with conventional(C) and CAD(D) waxing. However, a significant difference was found in the internal gap at different sites. The highest internal gap was found at the occlusal surface, while the lowest gap was found at the finish line. The highest mean microleakage score was found with CAD wax and press veneering, while the lowest mean microleakage score was found with conventional wax and press veneering. Conclusion Both construction techniques of ceramometallic restoration were considered reliable in restoration production within a clinically acceptable range regarding internal fit and microleakage. There is a strong positive correlation between internal fit and microleakage of ceramometallic restoration constructed.

The usefulness of measuring the anion gap in diagnosing metformin-associated lactic acidosis: a case series

Background Metformin-associated lactic acidosis (MALA) is a widely documented adverse event of metformin. Despite being considered one of the main causes of metabolic acidosis, the association between an anion gap and MALA diagnosis is still uncertain. Case presentation Cases involving six Caucasian patients with suspected MALA who were admitted to the emergency department were analysed. All these patients presented with pH values < 7.35, lactate levels > 2 mmol/L, and estimated glomerular filtration < 30 mL/min. Metformin plasma concentrations were > 2.5 mg/L in all the patients. The highest metformin concentrations were not found in the patients with the highest lactate levels. The anion gap values ranged from 12.3 to 39.3, with only two patients exhibiting values > 14. Conclusions In patients with MALA, there is a significant variability in the anion gap values, which is not related to the level of metformin accumulation, and therefore, it is doubtful whether measuring anion gaps is useful as an approach for MALA diagnosis.