Miracle-dz/UniFAR-FTUs huggingface dataset:
Development of a liquid-type human-body equivalent antenna using NaCl solution

Radio-frequency (RF) safety guidelines requires to estimate the ankle induced current in the human body standing on the ground in Very High Frequency (VHF) band because of the whole-body resonance. In this presentation we have investigated the human-body equivalent antenna for estimation of the induced ankle current. First, we verified that the numerical calculation is valid for designing the specification of the antenna, i.e., the electrical properties of the tissue-equivalent liquid. Next, we determined the optimized electrical properties of the tissue-equivalent liquid for simulating the actual induced ankle current. Consequently, we demonstrated the human-body equivalent antenna using of 2.6-% NaCl solution for the tissue-equivalent liquid at 21-degree C can estimate ankle induced current within 20-% error.
The Role of Vendor Legitimacy in IT Outsourcing Performance: Theory and Evidence

Information technology outsourcing (ITO) relationships today are facing increasingly turbulent environments. This research examines ITO performance by focusing on client firms’ perceived legitimacy of vendors, termed “vendor legitimacy,” consisting of pragmatic, cognitive, and moral dimensions. Based on our surveys with executives and managers at 200 ITO client firms, the study’s findings present the imperative to actively manage vendor legitimacy for achieving and sustaining ITO performance. Specifically, at the strategic level, clients’ perception of vendors as mutually aligned, long-term-oriented, tightly integrated partners is critical. At the operational level, clients should collaborate with vendors to design and establish interorganizational routines that undergird vendor legitimacy. At the managerial level, clients’ relational governance plays a pivotal role in attaining procedural justice, ethical standards, and fairness in the interorganizational collaboration. In sum, our study suggests that creating a dedicated corporate function or unit for continually overseeing and assessing a portfolio of vendors and swiftly identifying and responding to potential issues and crises related to vendor legitimacy would be a worthwhile investment.
Fabrication of light-turning mirrors in buried-channel silica waveguides for monolithic and hybrid integration

A technique for incorporating a mirror into the core of a silica-based channel waveguide is described. Both up reflecting mirrors for hybrid integration and down-reflecting mirrors for monolithic integration can be fabricated using this technique. The proposed fabrication method is based on a combination of low temperature hollow cathode PECVD for silica-based waveguide deposition and a novel technique for forming a reflecting facet by wet chemical etching of PECVD silica.
Real‐Time Arrhythmia Detection Using Hybrid Convolutional Neural Networks

Background Accurate detection of arrhythmic events in the intensive care units (ICU) is of paramount significance in providing timely care. However, traditional ICU monitors generate a high rate of false alarms causing alarm fatigue. In this work, we develop an algorithm to improve life threatening arrhythmia detection in the ICUs using a deep learning approach. Methods and Results This study involves a total of 953 independent life‐threatening arrhythmia alarms generated from the ICU bedside monitors of 410 patients. Specifically, we used the ECG (4 channels), arterial blood pressure, and photoplethysmograph signals to accurately detect the onset and offset of various arrhythmias, without prior knowledge of the alarm type. We used a hybrid convolutional neural network based classifier that fuses traditional handcrafted features with features automatically learned using convolutional neural networks. Further, the proposed architecture remains flexible to be adapted to various arrhythmic conditions as well as multiple physiological signals. Our hybrid‐ convolutional neural network approach achieved superior performance compared with methods which only used convolutional neural network. We evaluated our algorithm using 5‐fold cross‐validation for 5 times and obtained an accuracy of 87.5%±0.5%, and a score of 81%±0.9%. Independent evaluation of our algorithm on the publicly available PhysioNet 2015 Challenge database resulted in overall classification accuracy and score of 93.9% and 84.3%, respectively, indicating its efficacy and generalizability. Conclusions Our method accurately detects multiple arrhythmic conditions. Suitable translation of our algorithm may significantly improve the quality of care in ICUs by reducing the burden of false alarms.
Design and Analysis of a Low Frequency MEMS Vibration Sensor for Automotive Fault Detection

The modern automobile requires the use of many DC motor and solenoid-actuated systems that are susceptible to wear and sudden failure. Real-time monitoring of the vibration signature of these components could provide early detection of mechanical faults and lead to timely repairs, thereby preventing unexpected failures. This paper presents the theoretical analysis and experimental results of two Micro Electro Mechanical Systems (MEMS)-based sensors designed for low frequency vibration detection. One sensor was designed utilising lateral capacitive sensing, and provided an order of magnitude higher mechanical sensitivity than the design employing transverse capacitive sensing. Experimental results confirm the theoretical analysis.
Improving efficiency of flywheel energy storage system with a new system configuration

A novel flywheel energy storage system is proposed in this study. The converter for the flywheel energy storage system is composed of an AC/DC, a DC/AC and a motor/generator converter. In motoring mode (the line is on), the AC/DC converter lets the system deliver sinusoidal input current and boosts the DC link voltage. In generating mode (the line is off), the DC/AC supplies sinusoidal voltage to load. The Halbach array machine is selected for the design of a three-phase motor/generator for the flywheel energy storage system. The energy storage system consists of a composite wheel and a magnetic bearing resulting in the reduction of the system loss.
Efficacy of Web-Based Supportive Interventions in Quality of Life in COPD Patients, a Systematic Review and Meta-Analysis

Background: Adults living with Chronic Obstructive Pulmonary Disease (COPD) often have difficulties when trying to access health care services. Interactive communication technologies are a valuable tool to enable patients to access supportive interventions to cope with their disease. The aim of this revision and meta-analysis is to analyze the content and efficacy of web-based supportive interventions in quality of life in COPD. Methods: Medline (via PubMed), Web of Science, and Scopus were the databases used to select the studies for this systematic review. A screening, analysis, and assessment of the methodological quality was carried out by two independent researchers. A meta-analysis of the extracted data was performed. Results: A total of 9 of the 3089 studies reviewed met the inclusion criteria. Most repeated web content elements were educational and involved communication with healthcare professional content. Finally, seven of the nine studies were included in a quantitative analysis. Web-based supportive interventions significantly improved quality of life when added to usual care (SMD = −1.26, 95% CI = −1.65, −0.86; p < 0.001) but no significant differences were found when compared with an autonomous pedometer walking intervention (p = 0.64) or a face-to-face treatment (p = 0.82). Conclusion: This systematic review and meta-analysis suggests that web-based supportive interventions may complement or accompany treatments in COPD patients due to the advantages of online interventions. The results obtained should be treated with caution due to the limited number of studies in this area and methodological weaknesses.
Feasibility study to implement an interdisciplinary lifestyle and health program for adolescents and the evaluation of the programs benefits for maintaining health.

Objective: The aim of this study was to evaluate the feasibility and benefits of an interdisciplinary lifestyle and health program for adolescents embedded in a school setting for maintaining or improving health. Design: Health parameters, anthropometric measurements and 50 biomedical parameters were assessed. A Physical Fitness Test battery was performed and an eencoded and standardized eating and physical activity behaviour questionnaire was used to assess food preferences, behaviour and self-perception. These data were collected at three timepoints. Participants were split into control and intervention group; the latter received a nutrition and health-based workshop. Analysis was focused on changes observed over time within the control and intervention group. Settings: The study was performed as a feasibility study at one federal Austrian school. Participants: Participants included 42 females and 67 males with an average age of 15 years. Results: Overall, the results demonstrated a positive effect on body fat content and physical activity. A trend towards a benefit on parameters of muscle and fat metabolism was detected. Conclusions: An interdisciplinary life-style program integrated into the school curriculum is suited to have a positive impact on health by enhancing the awareness for healthy nutrition and the importance of physical activity
Growth and Expression of Virulence Genes of Listeria monocytogenes during the Processing of Dry-Cured Fermented “Salchichón” Manufactured with a Selected Lactilactobacillus sakei

Simple Summary During the ripening process of the dry-cured fermented sausage “salchichón”, Listeria monocytogenes could fail to be eliminated. In addition, the food safety criterion for L. monocytogenes in the European Union sets up a maximum level of 100 units of this microorganism per gram in ready-to-eat products throughout their shelf-life. Thus, since L. monocytogenes could be present in this product, it is necessary to evaluate the impact of the dry-cured fermented processing in the potential virulence of this pathogen, even considering the possible effect of the usual microbiota (lactic-acid bacteria) of “salchichón”. In this work, the effect of the processing of “salchichón”, inoculated with a selected strain of Lactilactobacillus sakei, on the growth of L. monocytogenes and on the expression of its virulence genes, was evaluated. The processing of “salchichón” provoked a relevant reduction in L. monocytogenes, but this pathogen was not completely eliminated. However, a downregulation in the expression of the tested virulence genes was found, which could suppose a reduction in the pathogenic effect of this microorganism. These findings could be of great interest to consider the dry-cured ripening of “salchichón” as a safe process to control the pathogen L. monocytogenes. Abstract The effect of the dry-cured fermented processing of “salchichón” inoculated with a selected strain of Lactilactobacillus sakei (205) on the growth and transcriptional response of three virulence genes (plcA, hly, and iap) of Listeria monocytogenes was evaluated. For this, three different batches of “salchichón” were analyzed: batch B (inoculated only with L. sakei), batch L (inoculated only with L. monocytogenes), and batch L + B (inoculated with both microorganisms). Sausages were ripened for 90 days according to a traditional industrial process. The processing of “salchichón” provoked a reduction in L. monocytogenes counts of around 2 log CFU/g. The downregulation of the expression of the three genes was found at the end of ripening when the water activity (aw) of “salchichón” was <0.85 aw. The combined effect on the reduction in L. monocytogenes counts together with the downregulation in the expression of the virulence genes throughout the “salchichón” processing could be of great interest to control the hazard caused by the presence of this pathogenic bacterium.
Model of water application under pivot sprinkler. II : Calibration and results

A distributional semiempirical model for the simulation of spatial distribution of water application under center pivot sprinklers has been developed by the writers. This method describes the probability of water application for a sprinkler using a combination of beta functions. The calibration of this model has been undertaken using laboratory tests conducted in controlled conditions and then in windy conditions. The parameters calibrated are listed. The minimum number of tests needed for calibration has been estimated. The model used can be calibrated from one test in controlled conditions and three or four tests in windy conditions covering the range of usual wind speeds. Validation should be performed using at least two more infield tests. This simulation model of spatial water distribution under sprinklers of center pivot will thereafter be used to simulate the distribution of water under a typical pivot machine.
A non-contact method to measure the difference between the left wheelbase and the right wheelbase for dynamic vehicle detection

The measurement of the difference between the left wheelbase and the right wheelbase is the most important part of vehicle detection. A large difference between the left wheelbase and the right wheelbase may lead to a serious traffic accident. This paper develops a new method for dynamic detection, which is based on binocular stereo vision and is a non-contact method that can reduce the equipment failure rate. A real vehicle experiment is performed to verify the proposed method. The manual measurement method and the photosensitive detection method are applied for comparison. The experimental results demonstrate that the proposed method is more stable than the manual measurement method and the photosensitive detection method, and the proposed method can also be extended to other vehicles. Thus, the proposed method is useful for vehicle detection.
Effect of a Serious Game on Aviation Vocabulary Acquisition

Having proficiency in the standard aviation phraseology specified by International Civil Aviation Organization (ICAO) is of great importance for prospective pilots in communication with air traffic controllers and other pilots. The ambiguity in the standard phraseology could be a disaster for the flight crews. That’s why; serious thought has been given at the policy of improving the precise communication in aviation. However, it remains unclear whether the serious game-based flight simulations can enhance the vocabulary intake of the learners who invest the majority of their time in studying the standard aviation phraseology. There is also a dearth of research pertaining to the association between serious gaming and aviation phraseology. The advancement of the technology has exponentially expanded the digital games and therefore began to be widely used in education. The current study thus sets out to investigate the effect of a serious simulation game X-Plane 11 offering invaluable learning experience on aviation vocabulary acquisition. This investigation takes the form of a quasi-experimental mixed-method research by retrieving convenience sampling (15 subjects in experimental group, 15 subjects in control group). The findings indicated that there had been strong evidence of the positive effects of serious gaming on the learners’ outcome. Following the integration of the serious game, a significant increase with the medium effect size in the experimental group was recorded. This finding was also echoed by the majority of the interviewees who unanimously emphasized that the game was beneficial and motivating for language learning despite the minority challenges triggered by the level of language, hardware, and software types.
Bearings Fault Detection in Gas Compressor in Presence of High Level of Non-Gaussian Impulsive Noise

The paper deals with the local damage detection in rolling element bearings in presence of a high level non-Gaussian noise. In many theoretical signal processing papers and engineering application related to damage detection, a simple model of the vibration is assumed. Basically it consists of signal of interest (SOI) and some unwanted (deterministic and/or random) components masking SOI in acquired observation. So, damage detection problem has to concern filtering, decomposition or extraction issue. Unfortunately, in the most of the industrial systems mentioned unwanted sources are in fact not Gaussian, so many of de-noising techniques cannot be applied directly or at least might give unexpected results. In this paper an industrial example will be discussed and novel approach based on advanced cyclostationary-based technique will be proposed. In the paper disturbances include periodic impacts in reciprocating compressor on an oil rig. Existing classical detection techniques (statistics in time domain, analysis of envelope spectrum, time-frequency decompositions) are insufficient to perform the task due to high power of disturbance contribution in comparison to damage signature. In the proposed technique, the Spectral Coherence Density Map (SCDM) is estimated first. Next step is related to analysis of SCDM contents and selection of informative part. If informative and non-informative components lay in separate frequency regions, such selection should fix the problem immediately
A PRELIMINARY ELECTROMYOGRAPHIC INVESTIGATION INTO SHOULDER MUSCLE ACTIVITY IN CRICKET SEAM BOWLING

2 The aim of this investigation was to describe and compare surface electromyographic activity of shoulder musculature during cricket seam bowling between two elite bowlers with (bowler A) and without (bowler B) shoulder pathology. Activity of seven muscles were recorded at 500 Hz with a digital camera sampling at 210 Hz used to define phases within the movement. Whilst both the duration of the movement and ball velocity were similar between bowlers (bowler A: duration = 0.89 ± 0.04 s, ball velocity = 27.08 ± 1.21 m.s-1; bowler B: duration = 0.72 ± 0.02 s, ball velocity = 26.59 ± 1.49 m.s-1), variations in muscle activity particularly for biceps brachii and infraspinatus were established. Further research utilising larger sample sizes is required to establish if such variations occur as a consequence of shoulder pathology or if these are due to other contributing factors.
Validation of the Death and Dying Distress Scale (DADDS-Sp) in a population with advanced cancer in Chile

Introduction Developing instruments to screen for relevant aspects of advanced illness is key to identifying palliative needs and evaluating the effectiveness of interventions in this population. The objective of this project is to validate the Death and Dying Distress Scale in Spanish (DADDS-Sp) for screening anxiety about death and evaluating psychometric properties for people with advanced cancer. Methods DADDS is a 15-item self-administered questionnaire that assesses thoughts and feelings related to death and the process of dying. A cross-sectional, descriptive, psychometric validation study was conducted in two cancer centres in Santiago de Chile. Included were patients over 18 years of age with incurable and/or metastatic cancer, fluent in Spanish, and a life expectancy of more than 3 months. Reliability was analysed using Cronbach’s alpha, and confirmatory factor analysis was performed following the model of the original scale. Results Seventy four patients participated in the study. The median age was 63 years. Of the sample, 59% identified themselves as women. On average, participants reported low anxiety about death (mean = 21, SD = 18). Women have more death anxiety. The reliability analysis yielded a value of α = 0.93 (IC = 0.91–0.95). Factor analysis with a one-factor structure yielded Comparative Fit Index (CFI) = 0. 0.972, Root Mean Square Error of Approximation (RMSEA) = 0.092, Standardized Root Mean Square Residual (SRMR) = 0.085 and Tucker-Lewis Index (TLI) = 0.968. The model with a two-factor structure yielded CFI = 0.989, RMSEA = 0.059, SRMR = 0.075 and TLI = 0.987, suggesting that the two-factor model has a better fit for the data studied. Conclusions DADDS-Sp is psychometrically valid for use in a Spanish-speaking population, yielding high reliability and internal consistency. A majority of the Chilean patients reported a low level of anxiety about death although about 10% presented with severe anxiety, so their identification for adequate clinical management is fundamental.
Cell free HPV DNA provides an accurate and rapid diagnosis of HPV-associated head and neck cancer.

PURPOSE HPV-associated Head and Neck Squamous Cell Carcinoma(HPV+HNSCC) is the most common HPV-associated malignancy in the United States and continues to increase in incidence. Current diagnostic approaches for HPV+HNSCC rely on tissue biopsy followed by histomorphologic assessment and detection of HPV indirectly by p16 immunohistochemistry. Such approaches are invasive and have variable sensitivity. EXPERIMENTAL DESIGN We conducted a prospective observational study in 140 subjects (70 cases and 70 controls) to test the hypothesis that a non-invasive diagnostic approach for HPV+HNSCC would have improved diagnostic accuracy, lower cost, and shorter Diagnostic Interval compared to standard approaches. Blood was collected, processed for circulating tumor HPV DNA(ctHPVDNA) and analyzed with custom ddPCR assays for HPV genotypes 16,18, 33, 35 and 45. Diagnostic performance, cost and Diagnostic Interval were calculated for standard clinical work up and compared to a non-invasive approach using ctHPVDNA combined with cross-sectional imaging and physical exam findings. RESULTS Sensitivity and specificity of ctHPVDNA for detecting HPV+HNSCC was 98.4% and 98.6%. Sensitivity and specificity of a composite non-invasive diagnostic using ctHPVDNA and imaging/physical exam were 95.1% and 98.6%. Diagnostic accuracy of this non-invasive approach was significantly higher than standard of care (Youden index 0.937 vs 0.707, p=0.0006). Costs of non-invasive diagnostic were 36-38% less than standard clinical work up and the median Diagnostic Interval was 26 days less. CONCLUSIONS A non-invasive diagnostic approach for HPV+HNSCC demonstrated improved accuracy, reduced cost and a shorter time to diagnosis compared to standard clinical workup and could be a viable alternative in the future.