Miracle-dz/UniFAR-FTUs huggingface dataset:
Sealing of a Deep Horizontal Borehole Repository for Nuclear Waste

The depth and layout of a horizontal borehole repository has the potential to offer strong isolation of nuclear waste from the surface. However, the isolation may be compromised by the borehole used to access the repository, as it could provide a direct fast-flow path transporting radionuclides from the disposal section to the accessible environment. Thus, backfilling the disposal section and sealing the access hole are considered essential engineered safety components. To analyze the importance of plugging the open space between canisters and sealing the access hole, we numerically calculate non-isothermal fluid flow and radionuclide transport through the borehole and the surrounding geosphere for a variety of scenarios, which include backfill materials with different sealing properties and configurations that potentially induce strong driving forces along both the horizontal and vertical sections of the borehole. The simulations indicate that the dose contribution of radionuclides released through the access hole is small, even if the backfill material is of poor quality or has deteriorated, and even if considerable horizontal and vertical pressure gradients are imposed by assuming the underlying formation is overpressured and that the disposal section is intersected by faults activated during a seismic event. The modeling also reveals that the low influence of backfill integrity on repository performance partly arises from the very high length-to-diameter ratio of the borehole, which favors the radial diffusion of radionuclides—as well as pressure dissipation and associated advective transport—into the surrounding formation rather than axial transport along the borehole. The integrated modeling approach also exposes the importance of accounting for the connections and feedback mechanisms among the various subcomponents of the repository system.
Factors Affecting of Road Traffic Injuries in the Lower Southern Region of Thailand: A Content Analysis of Road Traffic Investigation Reports, 2006-2019

Background – Thailand has the second highest rates of road traffic mortality globally. Detailed information on the combination of human, vehicle and environmental risks giving rise to each incident is important for addressing risk factors holistically. This paper presents the result of forensic road traffic investigation reports in Thailand and determines risk factor patterns for road traffic injuries.Methods – Detailed forensic reports were extracted for 25 serious traffic accident events. For each report, accidents were characterized by the number of vehicles, number and type of injuries and deaths, road user types, involvement of roadside hazards, medical care provided, and human, vehicular and environmental influences on the incident. The Haddon matrix was used to analyse risk factors in three phases (pre-event, event, post-event) stratified by four agents (human, vehicle, physical and socio-economic environment). Results - The 25 events analyzed involved 407 victims and 47 vehicles. 65.8% of victims were injured, including 22.0% who died. Median age of those injured was 27 years, and 28 years for fatalities. Vehicles crashing with fixed objects, and pickup-related crashes, accounted for the majority of accidents and deaths. Head or neck trauma was the main cause of death. The majority (61%) of deaths occurred at the scene. Human error-related factors included speeding, and drowsiness from night and long-distance driving. Passenger risks included not using seat belt, sitting in cargo area and the cab of pickups. Not having anyone trained in first aid on the scene, first aid being provided by bystanders, and delayed calls to Emergency Medical Services increased injury risk. Overloaded vehicles, unsafe car modifications, no occupant safety equipment, and having unfixed seats were vehicular risks. Environmental risks included fixed objects on the roadside, no traffic lights, no guard rails, no traffic sign, road accident black spots, and hazardous objects roadside.Conclusions - Thailand must address all three temporal phases of the Haddon model and all three factors – human, vehicle and environment. At present traffic accidents cause much avoidable severe injury and death. The Haddon matrix is useful to structure road traffic investigations, revealing multi-level factors common on Thai roads. Keywords: Road traffic injury, Risk factor, Road traffic investigation, Haddon matrix
Adsorption and corrosion inhibitive properties of Oryza Glaberrima husk
extract on aluminium in H2SO4 solution: Isotherm, kinetic and thermodynamic studies

In this study, isotherm, kinetic and thermodynamic studies of corrosion inhibitory properties of Oryza Glaberrima husk extract (OGHE) on aluminium in 1.5 M H2SO4 solution was investigated via mass loss measurement. Aluminium coupon and OGHE were characterized using SEM, EDS, FTIR and AAS. Increase in Al corrosion rate in H2SO4 solution was observed as exposure period (24 120 hrs) and temperature (293 333K) were increased but decreased with pH (2 6). Corrosion inhibition efficiency of OGHE is a function of its concentration and ability to be easily absorbed on Al surface to form thick protective films against H2SO4 attack. Adsorption of OGHE molecule on Al surface in 1.5 M H2SO4 solution agrees excellently well with Langmuir isotherm. Thermodynamic study revealed the adsorption process to be spontaneous, endothermic and physisorption in nature. Kinetic study affirmed adsorption of OGHE molecule on Al surface to obey second order reaction. Appropriate corrosion mechanisms of Al dissolution in H2SO4 and in the presence of OGHE were proposed. This study proved positive prospects of OGHE as effective corrosion inhibitor for Al in acidic medium.
Relationships among Organizational-Based Self-Esteem, Social Exchange, and Turnover Intention of Hotel Employees: Impact of Job Dedication

ABSTRACT High employee turnover causes unwanted costs such as finances and time for hotels, on the other hand, it results in negative consequences such as the decline of employee productivity and service quality offered. Therefore, it is necessary to determine and decrease the factors that cause the turnover intention that occurred before turnover behavior. This study was designed to verify the effects of organizational-based self-esteem and social exchange on the turnover intention of hotel employees. In addition, it aimed to test the mediating role of job dedication. The data used in the empirical analysis were collected from 416 hotel employees in Turkey based on convenience sampling. Structural equation modeling was used to examine the hypothesized relationships. The results suggest that organizational-based self-esteem and social exchange in hotels could improve employee job dedication, thereby decreasing their turnover intentions.
Mainstream Protest Reporting in the Contemporary Media Environment: Exploring (In)Stability and Adherence to Protest Paradigm From 1998 to 2017

This study uses content analysis of protest coverage and sourcing practices by five major U.S. daily newspapers over the past two decades (1998–2017) to examine the prevalence and evolution of a set of devices of representation present in news coverage of protest groups. They have been traditionally ascribed to a pattern of mainstream coverage deemed marginalizing of protest groups, the “protest paradigm. ” The study concludes that the prevalence of marginalizing devices is stable over time, and that the degree of adherence to the paradigm in news stories systematically varies across protest type and geography. Implications of these findings are discussed.
Inclusion of LGBTIQ perspectives in school-based sexuality education in Aotearoa/New Zealand: an exploratory study

ABSTRACT In Aotearoa/New Zealand, sexuality education is one of seven key areas of learning in the Health and Physical Education (HPE) subject area within The New Zealand Curriculum. Since 2015, sexual diversity (lesbian, gay, bisexual identities and perspectives) and gender diversity (transgender; non-binary gender) have been explicitly included in the curriculum guidelines for teaching sexuality education in schools. Based on survey data collected from a convenience sample of 73 participants aged between 16 and 19 years, this study focused on the prevalence of sexuality education provision, its content, and the inclusion of sexuality and gender diversity in the wider school environment. Despite sexuality education being a mandatory part of HPE, only around three-quarters of respondents remembered having been taught it at some point in years 9 and 10. When taught, sexuality education was reported to focus primarily on conventional content areas (e.g. heterosex; biological function) and was therefore not inclusive of sexuality and gender diversity. Inclusion in the wider school environment was also limited, being mainly restricted to easy to implement measures (e.g. allowing same-sex partners at school balls and having a rainbow ally group). The implications of these findings for the development, wellbeing and human rights of young people are discussed.
Nonlinear vibrations of gradient and nonlocal elastic nano-bars

Abstract Practical vibration-based nano-devices are normally subject to disturbances where intense vibrations reveal significant nonlinear characteristics. Efficient implementation of nonlinear nano-systems requires comprehensive knowledge of the nonlinear dynamics. Nonlinear vibration characterization of elastic nano-bars with large vibration amplitudes is rigorously examined in the present study. The fascinating concept of simulating long-range interactions can be realized in the framework of the nonlocal elasticity theory, and thus, nano-scale effects are taken into account in the framework of the stress-driven nonlocal integral elasticity. The equivalent nonlocal differential condition equipped with non-classical boundary conditions of constitutive type is consistently detected. For proper comparison sake, the strain gradient elasticity theory is selected due to its similarities in revealing the stiffening structural response at nano-scale. In simple structural schemes of technical interest, the space-time decoupled formulation is constructed applying the weighted residual Galerkin method which results in a strongly nonlinear ordinary differential equation with cubic and quadratic nonlinearities. Analytical approach for the nonlinear analysis of the system dynamics provides an effective tool for optimized design of vibration-based nano-devices. The homotopy analysis method is accordingly employed to analytically study the nonlinear vibration response of nano-bars and its efficiency and accuracy is verified in comparison with the multiple scales method. The conceived approach for the nonlinear vibration analysis of elastic nano-bars, therefore, provides a consistent methodology to tackle nonlinear dynamic phenomena in nano-mechanics.
Guar gum as an additive for improving the bread making quality of wheat flours.

Guar gum was added at 0.5, 1.0 and 1.5% levels to commercial (maida) and laboratory milled wheat flour and dough properties and bread making quality were studied. Water absorption of the flour increased with higher levels of guar gum. Dough development time did not vary much up to 1.0% addition of guar gum but at 1.5% dough development time decreased with both flours. Mixing tolerance index improved up to 1% guar gum and at 1.5% level a decrease in dough consistency was observed. Mixing dough in a mixograph showed decreased dough development time with added guar gum, but stability and consistency of the dough were not affected. Up to 1% level guar gum increased the wt. of loaf by 4.0% by absorbing more water (1.4-2.0%) and also retaining more water. The dough was sticky above 1% addition of guar gum. Crust colour improved from dull brown to golden brown and compressibility of crumb gradually decreased with increasing addition of guar gum. Addition of greater than 1.0% of guar gum adversely affected dough handling properties.
What is interstitial fluid? Biochemical and physiological analysis of fluid obtained from tissue cages.

: Multiperforated polypropylene balls implanted in soft-tissue and renal parenchyma deliver fluid which represents interstitial fluid, which was characterized biochemically and physiologically. In a time-concentration study, the serum antibiotic level was compared to levels in interstitial fluid of the kidney (RIF), interstitial fluid of soft-tissues of the abdominal wall (STIF) and urine, measured simultaneously after intravenous injection of six different antibiotics. A direct time-concentration relationship between the concentration of antibiotics in the serum and in the renal interstitial fluid was found. This study helps delineate the basic pharmacokinetics in renal interstitial tissue and suggests guidelines for optimal therapy in renal parenchymal infections.
A Combined Study with 18F-FDG and 11C-Methionine Dynamic PET for the Grading of Brain Gliomas.

Purpose: Conventional MRI based on contrast enhancement and T2/FLAIR is often not sufficient in differentiating grade II from grade III and grade III from grade IV diffuse gliomas. Here we assessed advanced metabolic imaging using two well characterized PET tracers, namely 18F-FDG and 11C-Methionine.Methods: In this prospective study, 39 patients were enrolled with diffuse gliomas of grades II, III or IV underwent dynamic [18F]-FDF-PET and [11C]-Methionine. The first minutes were taken into accountResults: The use of 11C- Methionine provided significant differences between the different histologic subgroups with a higher number of parameters than did the use of 18 F-FDG. The most informative parameter is T/Np (T/N at the peak of the first maximum) with 11C- Methionine.Conclusion: The study of the first minute passage of 18F-FDG and/or 11C- Methionine through the tumor and healthy tissues in brain gliomas could not only allow improving the identification of the different glioma grades, but also to shorten the time spent by the patients under the camera. In case of using one tracer, methionine still would be the best choice. Otherwise, the use of 18F-FDG and SUVр (SUV at the peak of the first maximum) would provide results likely comparable to methionine T/N index.
Health Profile of Faculty and Staff at the Adventist University of the Philippines: A Basis for Workplace Health Promotion

This study determined the health profile of faculty and staff at the Adventist University of the Philippines. Using the descriptive research design, a total of 83 respondents participated in the study. Results of the descriptive analysis revealed an overall good health status of the respondents. There were however, few occurrences of poor health profile in terms of high systolic blood pressure (41%), high diastolic blood pressure (31.3%), low back pain (18.1%), asthma (10.8%) and sinusitis (7.2%). Additionally, 38.2% of respondents experienced anxiety and 19.7% experienced sleep disturbance. There was a difference in gender based on waist-to-hip ratio (WHR) finding. Based on the WHR results, more than half (56%) of the female respondents were at high risk (WHR ≥ 0.86) for cardiovascular diseases, while only 3% of the male counterparts had a moderate risk (WHR 0.96-1.0) for cardiovascular and other non-communicable diseases. In fact, none (0%) of the male respondents was at high risk for cardiovascular diseases. Amidst the few occurrences of poor health, the respondents experienced considerable life enjoyment and exhibited high priority for attaining their health goals. Respondents are therefore entreated to engage in healthy lifestyle practices (exercise, healthy eating and stress management), avail for regular check-ups and screenings and access medical services in order to prevent and/or control chronic lifestyle-related diseases.
Conditional Privacy-Preserving Authentication Protocol With Dynamic Membership Updating for VANETs

Existing conditional anonymous authentication protocols to secure the group communication in VANETs (Vehicular Ad hoc Networks) render challenges such as dynamically updating membership in a domain and achieving vehicle user’s privacy preservation. This article elegantly addresses these challenges by proposing a novel conditional privacy-preserving authentication with dynamic membership for VANETs depending on chinese remainder theorem (CRT). Specifically, the CRT is utilized by a trusted authority to securely disseminate a domain key for the authorized vehicles in the same domain, where each vehicle in this domain is able to obtain the domain key by only performing one modulo division operation in case of domain key updating. Distinct from the previous works in this field, our proposed protocol not only achieves message authentication, anonymity and conditional privacy-preserving, but also provides forward security and backward security of vehicles. Theoretical analysis and experiment simulation demonstrate that the proposed protocol is provably secure and highly feasible.
Mutual Information and Meta-Heuristic Classifiers Applied to Bearing Fault Diagnosis in Three-Phase Induction Motors

Three-phase induction motors are extensively used in industrial processes due to their robustness, adaptability to different operating conditions, and low operation and maintenance costs. Induction motor fault diagnosis has received special attention from industry since it can reduce process losses and ensure the reliable operation of industrial systems. Therefore, this paper presents a study on the use of meta-heuristic tools in the diagnosis of bearing failures in induction motors. The extraction of the fault characteristics is performed based on mutual information measurements between the stator current signals in the time domain. Then, the Artificial Bee Colony algorithm is used to select the relevant mutual information values and optimize the pattern classifier input data. To evaluate the classification accuracy under various levels of failure severity, the performance of two different pattern classifiers was compared: The C4.5 decision tree and the multi-layer artificial perceptron neural networks. The experimental results confirm the effectiveness of the proposed approach.
Pressure Fluctuations in the Spatial Hydraulic Jump in Stilling Basins with Different Expansion Ratio

Pressure fluctuations are a key issue in hydraulic engineering. However, despite the large number of studies on the topic, their role in spatial hydraulic jumps is not yet fully understood. The results herein shed light on the formation of eddies and the derived pressure fluctuations in stilling basins with different expansion ratios. Laboratory tests are conducted in a horizontal rectangular flume with 0.5 m width and 10 m length. The range of approaching Froude numbers spans from 6.4 to 12.5 and the channel expansion ratios are 0.4, 0.6, 0.8, and 1. The effects of approaching flow conditions and expansion ratios are thoroughly analyzed, focusing on the dimensionless standard deviation of pressure fluctuations and extreme pressure fluctuations. The results reveal that these variables show a clear dependence on the Froude number and the distance to the hydraulic jump toe. The maximum values of extreme pressure fluctuations occur in the range 0.609<X<3.385, where X is dimensionless distance from the toe of the hydraulic jump, which makes it highly advisable to reinforce the bed of stilling basins within this range.
School Principals’ Opinions on Autonomy in School Administration

Bu calismanin amaci okul mudurlerinin okul yonetiminde ozerklik ile ilgili goruslerini belirlemektir. Calisma nitel arastirma yontemlerinden olgubilim desenini esas almaktadir. Verilerin toplanmasinda gorusme yonteminden; analizinde ise betimsel analizden yararlanilmistir. Arastirmanin katilimcilari 14 lise mudurunden olusmaktadir. Katilimcilarin belirlenmesinde amacli ornekleme yontemlerinden olan maksimum cesitlilik teknigi kullanilmistir. Veriler yari yapilandirilmis gorusme formu araciligi ile elde edilmistir. Elde edilen sonuclara gore katilimcilarin tamami calisan performansini degerlendirme, butceyi hazirlama, harcama kalemlerine karar verme gibi hususlarda okul mudurlerinin ozerk hareket edebilmesi gerekliligini vurgularken; buyuk cogunlugu da okul mudurunun mudur yardimcisini ve calisanlari secmede, isgunu takvimi ve gunluk zaman cizelgesini belirleyebilmede, okutulacak ders kitaplarina ve mufredata, okul kontenjani ve sinif mevcutlarina karar vermede ozerk hareket edebilmesi gerektigini belirtmistir. Veliler ve mahalli idareler ozerklikte destegi onemli gorulen unsurlar olarak one cikmaktadir. Katilimcilar olasi bir ozerkligin avantajlarini okulun sundugu egitim hizmetinin kalitesinde ve okul yonetiminde etkinligin artmasi ve calisan performansinda iyilesme; dezavantajlarini ise okul yonetiminde oznel uygulamalar ve okul mudurune yonelik olasi baskilar olarak on plana cikarmislardir. Son olarak katilimci goruslerine gore okul mudurlerinin ozerkliginin onundeki engeller siyasi irade ve asiri merkeziyetci egitim sistemidir
Prevalence of Enterotoxigenic Bacteroides Fragilis in Stool Specimens Collected from Children Less Than 5 Years Of Age in Iraq

Although Bacteroides fragilis is a bacterium present within gut microbiota, the toxin producer strain, known as enterotoxigenic B. fragilis (ETBF), is associated with diarrhea in children less than 5 years of age. This study includes 69 diarrheal and 29 non-diarrheal (control) samples collected from children less than 5 years old. DNA was extracted directly from stool specimens and directed to conventional PCR targeting beta-isopropylmalate dehydrogenase (leuB) gene, used for detection of B. fragilis, and Bacteroides fragilis toxin (bft) gene, used for the detection of ETBF. The results showed that the prevalence of leuB gene was 78 (79.6%) including 56 (81.2%) in diarrheal and 22 (75.9%) in non-diarrheal subjects, while that of bft gene was only 3 (3.1%) including 2 (2.9%) in diarrheal and 1 (3.4%) in non-diarrheal subjects. Based on sequencing of bft-positive specimens, both bft-1 and bft-2 isoforms were represented in diarrheal specimens, whereas only bft-1 was found in the control specimens. In conclusion, this study examined for the first time the leuB and bft gene in a specimen of Iraqi children with diarrhea and showed no significant differences between diarrheal and control groups in both genes.
DEVELOPMENT OF COLLABORATION, RESEARCH AND MENTORING SKILLS OF PRE-SERVICE TEACHERS FACILITATING ICT LEARNING BY OLDER ADULTS

The purpose of the article is to substantiate educational strategies of collaboration, research and mentoring skills development in pre-service teachers facilitating older adults’ learning of ICT with the use of problem-based practice-oriented adult learning activities. The study involved students of Ukrainian and Polish universities who were in the first year of Master degree programme for pre-service teachers and older people enrolled in the non-formal educational programme “The third age university”. In order to identify the data on the initial levels of the target skills development in pre-service teachers, we used narrative interviews, a self-assessment questionnaire, and observations. At the stage of target skills development, we used the problem-based learning method which required the pre-service teachers to research the older adults’ needs in ICT learning, provide mentoring and promote collaboration in the learning process. At the stage of evidence verification, we employed observation of pre-service teachers’ behaviour and a self-assessment questionnaire and compared the results with the initial data. Our findings showed an increased level of the development of all the three skills of pre-service teachers, which confirmed the appropriateness of the use of the chosen learning method based on the authentic problem that was relevant to the pre-service teachers since they understood that its solution was important for the involvement of older citizens in active life of community and society undergoing digital transformation.