Miracle-dz/UniFAR-FTUs huggingface dataset:
Less Experienced but Healthier: Health Behaviors of Medical Students Compared With Practicing Physicians

BackgroundWe examined health behaviors and perceptions among medical students and compared them with the results of a previous survey among residents and senior physicians. MethodsThis cross–sectional study was performed among second-year medical students (2015-2018) and among physicians (2015) using an online questionnaire. Univariate and multivariate analyses were performed. ResultsSignificantly more physicians perceived their health as bad, compared with students. Half of the residents, compared with one-third of senior physicians and one-fifth of students, reported high emotional stress. Residents reported the worst, and students - the best, eating habits. Logistic regression models demonstrated that lower emotional stress, healthy eating habits, adequate sleep, lower body mass index and not having a regular physician, explained good perceived health. Female gender, being a resident, bad perceived health, unhealthy eating habits, less sleep and not having a regular physician, were correlated with high emotional stress. ConclusionsThe healthy lifestyle of medical students declines towards residency. Given the workload and emotional stress of their chosen profession, it is advised that medical school curriculum provide students with measures to help them gain more years of healthy life, allowing students and physicians to be better role models and the healthcare system to perform better.
Business process management : theory on progression and maturity

Business Process Management (BPM) is a topic that continues to grow in significance as organisations seek to gain and sustain competitive advantage in an increasingly global environment. Despite anecdotal evidence of organisations improving performance by pursuing a BPM approach, there is little theory that explains and substantiates this relationship. This study provides the first theory on the progression and maturity of BPM Initiatives within organisations and provides a vital starting block upon which future research in this area can build. The Researcher starts by clearly defining three key terms (BPM Initiative, BPM Progression and BPM Maturity), showing the relationship between these three concepts and proposing their relationship with Organisational Performance. The Researcher then combines extant literature and use of the Delphi Technique and the case study method to explore the progression and measurement of the BPM Initiatives within organisations. The study builds upon the principles of general theories including the Punctuated Equilibrium Model and Dynamic Capabilities to present theory on BPM Progression and BPM Maturity. Using the BPM Capability Framework developed through an international Delphi study series, the Researcher shows how the specific organisational context influences which capability areas an organisation chooses to progress. By comparing five separate organisations over an extended time the Researcher is able to show that, despite this disparity, there is some evidence of consistency with regard to the capability areas progressed. This suggests that subsequent identification of progression paths may be possible. The study also shows that the approach and scope taken to BPM within each organisation is a likely predictor of such paths. These outcomes result in the proposal of a formative model for measuring BPM Maturity.
System Integration and Field Tests for Developing In-Vehicle Dilemma Zone Warning System

The basis for system integration and field testing was developed for assessing a dilemma zone warning system for signalized intersections. The system consists of hardware (an in-vehicle warning device, roadside antenna, and traffic signal controller) and software to operate and test the integrated component warning and communications systems. Field tests were conducted in real traffic situations to test the system’s warning initiation time from the signal controller, the activation and duration of the visual and audible signals, and the warning delay, on the basis of relationships between distance variables that include the safe stopping distance and the location of roadside antenna. Findings from the field tests at two signalized intersections indicated that the system could be implemented at signalized intersections to eliminate the dilemma zone, relative to approach speeds, and to reduce red-light violations and intersection collisions by means of an in-vehicle warning device.
Nano-Fertilizer Application to Increase Growth and Yield of Sweet Pepper under Potassium Levels

Background and objective: Under green-house conditions, two pot experiments were conducted an experimental farm at Faculty of Agriculture, Menoufia University in 2015 and 2016 summer seasons. Methodology: This work aimed to study the effect of four rates of potassium fertilizer, 200, 250, 300 and 350kg/fed. and two rates of lithovit 2.5 and 5.0g/l water as a foliar application as well as their interactions, on growth characters, water relations, chemical composition, fruit yield and its components of the sweet pepper (Capasicum annuum L.) plants. Results: It is very clearly in our results that all treatments used in this study at either levels of potassium fertilizer or lithovit levels as well as their interaction, led to an increase in all vegetative growth characters, total & relative water content, bound & free water, photosynthetic pigments, total carbohydrates, total soluble sugars, N, P, & K concentrations and yield and its components. Meanwhile it decreased proline concentration, peroxidase and phenoloxidase activity. Conclusion: the
Direct Digital Synthesizers

Abstract : Frequency synthesizers are one of the principal building blocks of precise time and frequency system. Direct digital synthesizers (DDS) have become increasingly important as the need for small, low power, high resolution, wide frequency range, fast settling, high spectral purity synthesizers has grown. This paper reviews the various types of DDS's and the principles of their design. DDS architectures fall into 6 major categories: pulse output, sine output, triangle output, phase interpolation, jitter injection, and fractional divider or pulse snatching DDS's. The details, design principles, and performance characteristics of these categories are reviewed and the pros and cons of one category verses another are presented. included is a discussion of the relationships between the design parameters of the various types of DDS's and synthesizer performance parameters such as spectral purity, phase jitter, frequency range, frequency resolution, and settling time. Of prime importance in the design of these DDS's are the requirements on spurious sideband and phase jitter levels. A theory for predicting these spur and jitter levels and of relating these levels to DDS design parameters is presented. It is shown that DDS spurs can be understood as coming from harmonic distortion in the DDS output which is aliased down to lower frequencies due to the discrete stepped nature of DDS operation. The relationship of the sizes and frequencies of these aliasing spurs to DDS parameters is discussed showing that spur considerations place fundamental limitations on the permissible frequency range of the DDS. A quantitative theory explaining how jitter injection reduces spur levels is also presented.
The role of the electric heating and district heating networks in the integration of wind energy to Island networks

Flexible electric heating and heat storage is investigated in terms of managing wind power on an islanded power-system. A case study is developed consisting of: power system with operational constraints; firm and non-firm connected wind generation; electric district heating network with heat storage. Simulations proceed by balancing half-hourly electrical and heat supply and demand over 1 year to determine non-firm generation energy yield. Investigation of dispatch rules demonstrates the importance of managing system flexibility, particularly the heat-store. Heat store capacity is investigated and small storage tanks are shown to significantly increase wind production, however the marginal increase in wind energy output drops quickly with increasing storage size. Heat-storage is also shown to allow successful management of periods with low electrical demand, which can cause operational difficulties for power networks. Finally a comparison is made with a system that uses electric boilers as a secondary heat supply. Archival value is found in the presentation of methods for analysis of combined electrical and heat networks together with case study results. Clear conclusions are drawn on the economic worth of options for the facilitation of greater renewable energy provision.
USING THE TRL DRIVING SIMULATOR TO EVALUATE TRAFFIC CALMING MEASURES

The report describes a pilot study which investigated the potential for using the TRL driving simulator to assess the effectiveness of traffic calming measures. The entrances to three real villages have been reproduced on the simulator. All the villages had traffic calming measures, in the form of signs and markings. Sixteen members of the public drove through the simulated villages, both with and without the traffic calming present. The speeds they drove at were compared with observations of sppeds made before and after the introduction of measures at the real villages. The result was that speeds and speed changes observed in the simulator were broadly comparable with those observed in real life. This suggests that the simulator could provide a useful means of assessing the effectiveness of traffic calming features involving signs and markings. Some chicanes and humps were also simulated and behaviour at these was also broadly comparable with that observed on the public roads. Aspects of trial design were investigated. (A)
Optical Characterisation of Astronomical Submillimetre Receivers including ALMA Bands 5 and 9

The primary concern of this thesis is the analysis of long wavelength quasioptical receiver systems operating within the Terahertz and submillimetre wavebands. Specific attention is paid to the front-end coupling optics of the Band 5 and Band 9 receiver channels of the Atacama Large Millimetre Array (ALMA). The theory of Gaussian Beam Mode Analysis (GBMA) is expanded and developed as the basic analytical tool for the work presented. This technique is utilised to model both classical optics diffraction and interference patterns. An alternate method of describing these diffraction patterns is developed using the Angular Spectrum of Plane Waves (ASPW). The general GBMA technique is supplemented by the commercially available Physical Optics (PO) package GRASP9 developed by TICRA. A comprehensive analysis of the ALMA Band 5 front end optics was conducted in conjunction with the Group for Advanced Receiver Development (GARD). This analysis was developed to investigate the efficiency of various configurations of the optics and was supplemented by a rigorous measurement campaign at GARD. As part of our ongoing collaboration with the Space Research Organisation of the Netherlands (SRON) a series of theoretical and experimental analyses were performed with the aim of improving the cross polar efficiency of the ALMA Band 9 receiver. In addition to these investigations of long wavelength receiver optics the theory of GBMA was combined with mode-matching theory to describe the behaviour of standing waves in typical submillimetre receiver systems. The reflection and transmission amplitude response patterns of several standing wave cavities were predicted with this technique and compared with experimental measurements. The effect of minor alterations to the feed horn structures on the resonance profiles are studied in depth. The eigenmodes of these resonant cavities are also analysed. A complex stray light baffle structure is introduced within the cavity and its effect upon the system is quantified.
COMPANY CARS AND ROAD SAFETY

The alleged 'fleet driver effect' is that drivers of company cars make abnormally high contributions to the numbers of road accidents. This paper presents a Transport Research Laboratory (TRL) study of the evidence for the existence of such an effect, and, if it exists, its likely size, the factors contributing to it, and the measures used to reduce it. The study re-analysed data from the TRL programme of accident liability studies, reviewed the literature on fleet safety with special reference to remedial measures and the evidence for their effectiveness, and did some qualitative research with fleet managers, trainers, drivers, and insurers. Company fleets vary enormously in size and function, and the population of company car drivers is even more diverse. At least seven reasons have been proposed to support the argument that fleet car drivers have higher accident rates than private car drivers. A simplified multivariate model was fitted to the TRL data, and it was found that fleet drivers have up to 50% more accidents than private drivers, even allowing for their greater annual mileage; the reasons for this are not yet clear. There is little evidence that measures currently used to improve fleet safety are actually effective. Fleet safety is most likely to be improved by an integrated set of measures based on a strong company safety culture. For the covering abstract see ITRD E105257.
Self-perceived Body Image in Relation to Mental Health of South Korean Adolescents

My study is designed to investigate the differences in self-perceived body image in terms of gender and school year, as well as mental health state based on self-perceived body image. For this, I utilized data from the 15th Korean Youth Health Behavior Online Survey (2019), conducted by the Korean Center for Disease Control and Prevention. The main questions that I address are whether there is a difference of self-body perception between male and female adolescents, whether there is a difference of self-body perception based on school year, and whether there is a difference of mental health state in terms of self-perceived body image. In terms of self-perceived body image differences between gender, it was the case that more girls categorized themselves as fat than boys. In terms of self-perceived body image differences by school year, older students were more likely to categorize themselves as fat. For differences in mental health issues by self-perceived body image, students who categorized themselves as fat ranked the highest percentages in all mental health problems. Based on these findings, I discussed some implications and limitations as well as suggestions for further research.
Bi-directional DC-DC Converter with Adaptive Fuzzy Logic Controller

A bi-directional DC-DC converter with adaptive fuzzy logic controller (AFLC) is introduced. Bi-directional power flow is obtained by the same power components and provides a simple, efficient, and galvanically isolated converter. In the presence of DC mains the converter operates as buck converter, powers the down stream converter and also charges the battery. When the DC mains fails, the converter operates as boost converter and the down stream converters are fed by battery. In both the modes the power switches are controlled by PWM technique and the pulses are generated by application fuzzy logic with an adoption algorithm. The proposed converter is simulated using MATLAB and laboratory prototype is developed to validate the simulation results. Ill. 9, bibl. 11 (in English; summaries in English, Russian and Lithuanian).
How Shipping Company Satisfies Shippers Through Service Quality in South Korea: The Mediation Role of Trust

Purpose – This study aims to verify the direct causal relationship between cost competitiveness and global network competitiveness, which are the tangible service quality factors determined by the shipping company, which in turn affect the shipper’s customer satisfaction. Additionally, we empirically investigate the intangible, related service qualities determined by shipping companies, such as operational competitiveness and customer relationship quality, and how these then positively affect customer satisfaction through the formation of trust. Therefore, we examine the mediating effect of trust formation among different contractors for shipping services. Design/methodology – In order to examine the shipping company’s tangible and intangible servicequalities perceived by the shipper on customer satisfaction and the process of trust formation between contractors, we collected valid data from 114 respondents out of 200 distributed questionnaires. The respondents consisted of domestic freight forwarders who engage with domestic and international shipping and logistics agencies. Descriptive statistics, confirmatory factor analysis, reliability, convergent and discriminant validities, common method bias, and PLS-SEM (partial least square-structural equation model) were analyzed using the program STATA 16. Findings – The findings of this study are as follows. First, our results showed that all hypotheses assumed in this study had statistically significant supporting evidence. Second, it was found that the mediating effect of trust was significant in affecting the quality of intangible servicequalities for customer satisfaction. Third, through supplementary analysis, we found that the global network competitiveness of domestic shipping companies will increase in importance in the future. In conclusion, the theoretical and practical implications of these findings are presented. Originality/value – This study reaffirmed the traditional causal relationship between customer satisfaction and tangible service quality. Additionally, we also contribute to the literature on the understanding of the causal relationship between trust formation and customer satisfaction through intangible interactions from a long-term perspective.
Interpretation and extrapolation of ecological responses in model ecosystems stressed with non-persistent insecticides

Ondanks dat modelecosysteemstudies een belangrijke rol kunnen spelen in de toelatingsprocedure van bestrijdingsmiddelen blijft de vraag of de uitkomsten van deze studies representatief zijn voor andere locaties en tijdstippen. Met dit proefschrift wil de auteur daarom ingaan op de vraag of de resultaten van micro- en mesocosmstudies reproduceerbaar zijn en kunnen bijdragen aan een degelijke risico-evaluatie van bestrijdingsmiddelen. Om die reden worden de resultaten van verschillende micro- en mesocosmstudies die uitgevoerd zijn met de insecticiden chloorpyrifos (organofosfaat) en lambda-cyhalothrin (pyrethroide), en die tevens verschillen in experimentele condities, gepresenteerd en vergeleken. Deze studies worde vervolgens in het kader geplaatst van andere experimenten die uitgevoerd zijn met vergelijkbare insecticiden om daarmee inzicht te krijgen in de consistentie van de uitkomsten van micro- en mesocosmstudiesThis thesis aims to contribute to the discussion concerning whether micro- and mesocosm studies can serve as adequate models for robust risk assessment of pesticides. For this purpose, results from freshwater micro- and mesocosm experiments conducted under different experimental conditions are presented and compared. Case studies with the relatively well-studied insecticides chlorpyrifos (organophosphate) and lambda-cyhalothrin (synthetic pyrethroid) are used as examples of the variability typical in model ecosystem studies. These studies are placed in the context of other studies to gain insights into the consistency of the outcomes of micro- and mesocosm experiments performed with non-persistent insecticides which act upon the insect nervous system
Legality of Restrictions on Human Rights in a State of Military Emergency in Indonesia

This study aims to look at the legality of human rights restrictions in a military emergency in Indonesia. This research uses a normative legal research type. The choice of this type of normative analysis is related to the formulation of problems that become legal research issues. The findings of this study are that restrictions on human rights in a state of military emergency are justified because the human rights possessed by every human being do not apply, primarily if an army emergency is enforced, all human rights possessed by every human being can be limited to the implementation for the respect of human rights, the enforcement of a military emergency must see the condition of a region whether it is categorized as threatening the life of the nation or not. For this reason, this study recommends that the Government, in imposing restrictions on human rights in a military emergency, must be based on the element of a dangerous threat.
Transfer of Training Effectiveness in Flight Simulation: 1986 to 1997.

Abstract : The purpose of this report was to review recent studies regarding the effectiveness of flight simulators as augmentation for "hands-on" flying training. Simulation-based training has been proposed to reduce costs, extend aircraft life, maintain flying proficiency, and provide more effective training, especially in areas difficult to train in operational aircraft. A review of the literature from 1986 to 1997 identified 67 articles, conference papers, and technical reports regarding simulator flying training and transfer. Of these, only 13 were related directly to transfer of training from the simulator to the aircraft. Studies of simulator effectiveness for training landing skills constituted a majority of the transfer studies, although a few examined other flying skills such as radial bombing accuracy and instrument and flight control. Results indicate that simulators are useful for training landing skills, bombing accuracy, and instrument and flight control. Generally, as the number of simulated sorties increases, performance improves, but this gain levels off after approximately 25 missions. Further, several studies indicate that successful transfer may not require high-fidelity simulators or whole-task training, thus reducing simulator development costs. Evaluation of this literature is difficult for many reasons. Typically, researchers fail to report sufficient detail regarding research methods, training characteristics, and simulator fidelity. In addition to these methodological concerns, there is a lack of true simulator-to-aircraft transfer studies involving complex pilot skills. This may be due to problems such as inadequate simulator design, cost, and availability, and access to simulators in operational flying units. Future directions in simulator transfer of training are discussed.