Miracle-dz/UniFAR-FTUs huggingface dataset:
Defect Diagnosis for Rolling Element Bearings Using Acoustic

Rolling element bearings are very common components in rotating machinery. Hence,condition monitoring and the detection of defects are very important for the normal andsafe running of these machines. Vibration based techniques are well established for thecondition monitoring of rolling element bearings, although they are not so effective indetecting incipient defects in the bearing. Acoustic emission (AE) is receiving increasingattention as a complementary method for condition monitoring of bearings as AE is verysensitive to incipient defects. This paper presents an experimental study to investigate theAE characteristics of bearing defect and validates the relationship between various AEparameters and the operational condition of rolling element bearings. To analyze thecharacteristic vibration frequency of the bearing using the AE signal, short-time rms andautocorrelation functions are integrated to extract the actual characteristic frequency.The AE signal is then analyzed using standard parameters of the signals to explore thesource characteristics and sensitivity of typical rolling element bearing faults. The resultsdemonstrate that the proposed method is very effective to extract the actual characteristicfrequency of the bearing by AE signal. Furthermore the AE parameters are alwayssensitive to the running and fault conditions, which have a strong inﬂuence on the strainand deformation within the bearing material.
Contribution Acute Illness Among Surfers After Exposure to Seawater in Dry-andWet-Weather Conditions

© The Author 2017. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journalpermissions@oup.com. DOI: 10.1093/aje/kwx019
How Do Indonesian Professional English Teachers Develop Their Pedagogical Competence in Teaching Implementation

This article aims to investigate what kinds of Professional Development (PD) activities done by Indonesian professional English teachers in developing their pedagogical competence dealing with teaching implementation as well as to identify how those activities contribute to their competence development. This qualitative study was done in two stages namely subjects selection and investigation on the subjects’ professional development for their pedagogical competence in teaching implementation. The criteria of subjects selection have reflected the four competences that professional teachers need to possess which include personal, social, pedagogical and professional competences. The data collection was done by using questionnaire, interview guide, observation sheet. This study involves four selected professional English as a Foreign Language (EFL) teachers from Malang city, Malang Regency, and Batu town. The results show that PD activities done by the subjects include having discussion with colleagues, joining teacher association forum, attending seminars and workshops, taking courses, doing research, reading relevant sources, surfing the net,and doing team teaching. The ways how the subjects learn cover doing reflection, taking and giving feedback, discussing, broadening knowledge, researching, and problem solving. Referring to the limitation of this study, future researchers are recommended to do further study involving other aspects of pedagogical competence development, particularly the ones dealing with teaching preparation and evaluation on students learning.
In Defense of Consumer Critique: Revisiting the Consumption Debates of the Twentieth Century

In the past twenty-five years, the literature on consumption has gained analytic power by positioning itself against the consumer critics of the twentieth century (Veblen, Adorno and Horkheimer, Galbraith, Baudrillard), arguing that these accounts were totalizing, theorized consumers as too passive, and simplified motives. The literature moved to micro-level, interpretive studies that are often depoliticized and lack a critical approach to the subject matter. The author argues that developments such as the emergence of a global production system, ecological degradation, and new findings on well-being warrant a reengagement with the critical tradition and macro-level critiques. This article considers three traditions—Veblenian accounts of status seeking, the Frankfurt School, and Galbraith and the economic approach to consumer demand— arguing that the flaws of these models are not necessarily fatal and that the debate about producer versus consumer sovereignty should be revisited in light of the changing political power of transnational corporations.
Compliance and resistance: How performance measures make and unmake universities

How individuals comply with, and resist performance measures and metrics can be seen as a key concern in management and organization. Recent literature has advanced our understanding of compliance as a social practice which is often related to resistance. Yet, compliance is seen as something we equate with simply yielding to power without any agency. We address this theme with a study of the effects of managerialism on academic work. More specifically, we investigate the introduction of measures and controls to improve PhD completion times in a research-intensive UK university. Our findings show that despite most of our respondents voicing concerns about the reductionist nature of the target and the consequences for quality, the large majority of academics we talked to complied with the measure. We identify three compliance types that demonstrate compliance is an interpretative process. We make two principal contributions with this paper. First, we offer insights into why compliance deserves analytic attention as a social practice in its own right, as something that goes beyond mere consent. Second, we analyze the impact of managerialism on higher education through the lens of compliance. We use these insights to reflect on how compliance was linked to resistance and the effects of different compliance practices on academic work which ranged from shifting responsibilities to challenging academic integrity.
Quality-Oriented Hybrid Path Planning Based on A* and Q-Learning for Unmanned Aerial Vehicle

Unmanned aerial vehicles (UAVs) are playing an increasingly important role in people’s daily lives due to their low cost of operation, low requirements for ground support, high maneuverability, high environmental adaptability, and high safety. Yet UAV path planning under various safety risks, such as crash and collision, is not an easy task, due to the complicated and dynamic nature of path environments. Therefore, developing an efficient and flexible algorithm for UAV path planning has become inevitable. Aimed at quality-oriented UAV path planning, this paper is designed to analyze UAV path planning from two aspects: global static planning and local dynamic hierarchical planning. Through a theoretical and mathematical approach, a three-dimensional UAV path planning model was established. Based on the A* algorithm, the search strategy, the step size, and the cost function were improved, and the OPEN set was simplified, thereby shortening the planning time and greatly improving the execution efficiency of the algorithm. Moreover, a dynamic exploration factor was added to the exploration mechanism of Q-learning to solve the exploration-exploitation dilemma of Q-learning to adapt to the local dynamic path adjustment for UAVs. The global-local hybrid UAV path planning algorithm was formed by combining the two. The simulation results indicate that the proposed planning model and algorithm can efficiently solve the problem of UAV path planning, improve the path quality, and can be a significant reference for solving other problems related to path planning, such as the reliability, security, and safety of UAV, when embedded into the heuristic function of the proposed algorithm.
Emotional Intelligence Among Secondary Students: Role of Gender and Type of School

In recent years emotional intelligence has gained immense importance especially in predicting the success and failure of an individual in his life. The one who has high level of emotional intelligence is found to be better in handling the situations of life than one who has low level of emotional intelligence. Children in the age group of 14-16 years pass through the phase of life which is considered to be crucial in determining the development of a later phase of life. This phase is considered by many as stress and storm. Therefore, it is imperative that they are able to handle and control their emotions as it has implications for their immediate and future life. The present study was conducted in the urban settings wherein 246 students from public and private-funded institutions participated. The result indicated that female students have higher emotional intelligence in comparison to their male counterparts whereas the type of school does not act as a significant factor in differentiating emotional intelligence.
MOBILE SPORT APPLICATIONS CANMAKE OUR CYCLING MORE SOCIABLE

More and more cyclists use a variety of sports applications, which are accessible on different web portals or mobile phones. Sports applications, such as »Strava«, »Endomondo«, »Garminconnect" and many others are perfect tool for analysis their drives. Some of the sport applications also enable some kind of social network during the sport activities in the sense of virtual friendship or virtual competition. The purpose of the survey was to determine how sport applications can affect our cycling tours or trainings. We want to identify how important are these applications for the users and if they analysed and compared their cycling tours/trainings with other users. The sample consisted of 108 users of Strava cycling application (Strava club Slovenia). The results showed us that among the cyclists 61.1% used sport application in all their cycling tours or trainings. Based on the results of the survey “serious” cyclists used sport applications more because they want to improve their fitness level and on the other side “incidental” cyclists seek socializing and comparisonwith others.Whenwe compared different age groups of cyclists and their attitude towards the sport applications, we discovered that cyclists in older age groups used the sport applications more often.
Electrocardiographic Abnormalities in Patients With Acute Exacerbation of Chronic Obstructive Pulmonary Disease

Objective: The objective of this article was to determine the frequency of different electrocardiographic (ECG) abnormalities in patients with acute exacerbation of chronic obstructive pulmonary disease (COPD). Design: This is a cross-sectional study. Place and duration: The study was conducted at the medicine department at Civil Hospital Karachi, Pakistan, between November 2018 and May 2019. Method: Both female and male participants aged 18-60 years with acute exacerbation of COPD (as per the operational definition) for more than three days who did not receive any treatment for exacerbation were included in the study. Twelve-lead ECG was recorded (Schiller AG, Baar, Switzerland) for 10 minutes after the supine rest, with a 50 mm/s of paper speed, 10 mm/mV of gain, and filter default settings. Results: In total, 140 participants (male: n = 124 [88.6%] and female: n = 16 [11.4%]) were included the research. The mean age of the participants was 40.43 ± 11.51 years. In terms of severity, 46 (32.95) patients presented with mild, 46 (32.9%) with moderate, and 48 (34.4%) with severe exacerbation. Moreover, 33 (23.65%) participants had ECG abnormalities, i.e., 13 (9.3%) patients presented with right atrial enlargement, and eight (5.7%) with right ventricular hypertrophy. Patients with a longer smoking duration (years) were likely to present with ECG abnormalities. Conclusion: Patients with COPD who had severe acute exacerbation and a long smoking duration have a high prevalence of ECG abnormalities. Hence, ECG may be a valuable tool for detecting ischemic abnormalities among patients with COPD, independent of previously known heart disease, in clinical settings.
Influence of sample preparation on MX-80 bentonite microstructure

Abstract Compacted bentonite is to be used as a buffer material between waste canisters and the bedrock in the deep geological disposal of high-level nuclear waste in several countries. In spite of the fact that such large bentonite systems have long equilibration times, estimation of the material properties and performance in repository conditions is often based on short-term, laboratory-scale experiments. Sample-preparation procedures in these experiments may differ from the natural evolution of the bentonite in the repository, however, affecting the bentonite properties. The present study reports the influence on the structure of clay tactoids of four different preparation procedures of water-saturated, compacted MX-80 bentonite samples using four target dry bulk densities. Small-angle X-ray scattering was used to illustrate the differences between the samples. The different treatments of the bentonite samples may lead to different structural features. Clear differences between low-density samples prepared using different procedures were observed. The influence of the preparation methods was less, but still noticeable, for the high-density samples.
Towards a Theory of Information Systems User Competency

Individuals differ in their abilities to use information systems (IS) effectively, with some achieving exceptional performance in IS use. Various constructs have been identified in the literature to describe usage intentions of IS users and actual usage of IS, but studies to describe IS user competency or the ability to achieve proficiency in IS usage are lacking. This research develops a grounded model of IS User Competency (IUC) by using the Repertory Grid Technique in an inductive approach to identify a set of user factors associated with IS user competency. Based on the findings, a deductive approach using the survey method was undertaken to validate a subset of the model that focused on IS-specific factors domain knowledge of and skills in IS, willingness to try and to explore IS, and capability of perceiving IS value. The overall framework of IUC also comprises Personal Disposition and Traits, General Learning and Cognitive Factors, Communication and Collaboration Skills and Tendencies, Job Experience, Formal Education, Generation Factors, and Exposure to Technology. The survey findings suggest that all three IS-specific factors in the model are relevant and important to IS user competency, with willingness to try and to explore IS being the most significant factor. The results not only highlight important factors that can be fostered in IS users to improve their performance with IS use but also present research opportunities for IS training and potential hiring criteria for IS users in organizations.
Three Dimensional Simulation of Grain Growth in the Presence of Mobile Pores

A kinetic, three-dimensional Monte Carlo model for simulating grain growth in the presence of mobile pores is presented. The model was used to study grain growth and pore migration by surface diffusion in an idealized geometry that ensures constant driving force for grain growth. The driving forces, pore size, and pore mobilities were varied to study their effects on grain-boundary mobility and grain growth. The simulations captured a variety of complex behaviors, including reduced grain-boundary velocity due to pore drag that has been predicted by analytical theories. The model is capable of treating far more complex geometries, including polycrystals. We present the capabilities of this model and discuss its limitations.
Leptin and hyperleptinemia – from friend to foe for cardiovascular function

The obese gene product, leptin, plays a central role in food intake and energy metabolism. The physiological roles of leptin in human bodily function have been broadened over the past decade since leptin was first discovered in 1994. Evidence has suggested that leptin plays a specific role in the intricate cascade of cardiovascular events, in addition to its well-established metabolic effects. Leptin, a hormone linking adiposity and central nervous circuits to reduce appetite and enhance energy expenditure, has been shown to increase overall sympathetic nerve activity, facilitate glucose utilization and improve insulin sensitivity. In addition, leptin is capable of regulating cardiac and vascular contractility through a local nitric oxidedependent mechanism. However, elevated plasma leptin levels or hyperleptinemia, have been demonstrated to correlate with hyperphagia, insulin resistance and other markers of the metabolic syndrome including obesity, hyperlipidemia and hypertension, independent of total adiposity. Elevated plasma leptin levels may be an independent risk factor for the development of cardiovascular disease. Although mechanisms leading to hyperleptinemia have not been well described, factors such as increased food intake and insulin resistance have been shown to rapidly enhance plasma leptin levels and subsequently tissue leptin resistance. These findings have prompted the speculation that leptin in the physiological range may serve as a physiological regulator of cardiovascular function whereas elevated plasma leptin levels may act as a pathophysiological trigger and/or marker for cardiovascular diseases due to tissue leptin resistance. Journal of Endocrinology (2004) 181, 1–10
Value of Hedging in U.S Airline industry: A Perspective on firm value and accounting performance

The purpose of this research is to investigate the value premium associated with extent of hedging in the U.S. airline industry during the period 2006 to 2010 and to study the results of hedging on accounting performance as a proxy for firm value. The multivariate approach has been taken to measure the firm value using Tobin's q and accounting performance variables. The results show that hedging has a significant effect having a premium of 22.2% on firm value using Tobin's q but the hedging has no effect on Accounting performance as value measure. Therefore, the results on accounting performance do not complement our value results of Tobin's q.
The Influence of Self-Esteem and Body Dissatisfaction on Muscle Dysmorphia and Exercise Dependence

Using the psycho-behavioral model as a conceptual framework, the purpose of this study was to explore the relationships between self-esteem, body dissatisfaction, muscle dysmorphia, and exercise dependence among college men. Participants (n = 110) completed surveys including a demographic questionnaire, the Rosenberg Self-Esteem Scale, Body Part Satisfaction Scale, Drive for Muscularity Scale, and Exercise Dependence Scale-21. No significant relationship was found between self-esteem and muscle dysmorphia. A significant correlation was found between body dissatisfaction and muscle dysmorphia, as well as between muscle dysmorphia and exercise dependence. These results partially support the psycho-behavioral model of muscle dysmorphia.
CHLAMYDIA TRACHOMATIS IgG ANTIBODIES SEROPREVALENCE AMONG STUDENTS IN TWO TERTIARY INSTITUTIONS IN ANAMBRA STATE , NIGERIA : A COMPARATIVE STUDY *

Chlamydia infection is a common sexually transmitted infection (STI) in humans caused by the bacterium Chlamydia trachomatis. This study assessed the seroprevalence of Chlamydia trachomatis antibodies among students in two tertiary institutions in Anambra State, Nigeria. It was a comparative cross-sectional survey using enzyme immunoassay kits for the determination of IgG class antibodies, while the multistage sampling technique was used in the selection of participants for the study. The overall prevalence of Chlamydia trachomatis antibodies observed in this survey was 14.3%, which was higher among students from the University (21.6%) than their counterparts from the College of Education (7.4%) (χ=5.89, df=1p<0.015). Factors found to have significant effect on the seroprevalence of Chlamydia trachomatis in both institutions were: prior sexual exposure (p<0.05); unprotected sexual intercourse in the last one year (p<0.05); multiple sexual partners in the last one year (p<0.05); and presence of symptoms suggestive of STI (p<0.05). Among students in the College of Education, the place of residence significantly affected Chlamydia trachomatis seroprevalence with a preponderance towards students living off-campus (χ=4.00, df-1, p<0.05). Hence, there is need to institute appropriate prevention and control measures against the transmission of the disease especially among those at risk of contracting the disease.
Automatic Road Pavement Crack Detection using SVM

To keep a high road surface quality and road safety, an appropriate maintenance policy needs to be enforced, as soon as cracks start to appear. Since the traditional way of visually detecting road cracks by a skilled technician is very time consuming, this dissertation presents an automatic solution, therefore increasing the speed and efficiency of road surface pavement analysis and reducing the technician effort and subjectivity of the achieved results. The proposed system starts by pre-processing the database images, smoothing their texture and enhancing any existing cracks, being followed by the extraction of descriptive features. Here each image is divided into several non-overlapping blocks and each block originates a feature vector. A supervised learning algorithm called support vector machine (SVM), is then used to detect cracks. For this purpose the software LIBSVM, was used to train and test the system. After labeling each testing set block as crack or non-crack, a post-processing technique is applied to remove isolated crack blocks. Two different databases are used for testing purposes, one that contains easier crack examples and another with more challenging crack images, both databases being acquired with the camera optical axis orthogonal to the pavement. Several experiments were made for each database. In each experiment the classifier output is compared with the respective ground-truth, segmented by an expert. The results achieved show high recall values for both databases and also a high precision value for the first database, being capable of competing with the best results reported in the literature.
Chapter 2 Antioxidant Therapies in the Prevention and Treatment of Atrial Fibrillation

Atrial fibrillation (AF) is the most common sustained arrhythmia encountered in clinical practice, representing a major public health problem. Accumulating evidence suggests oxidative stress may play an important role in the pathogenesis and perpetuation of AF [1-5]. There are several redox signaling pathways that are possibly related to increased oxidative stress in the setting of AF, including mitochondrial DNA damage, increased activity of enzymes such as NADPH oxidase and xanthine oxidase, nitric oxide synthase uncoupling, activation of pro-arrhythmic transcription factors such as peroxi-some proliferator-activated receptor, c-fos and NF-κB. In the past few years experimental data and clinical evidence have tested the concept of antioxidant interventions to prevent AF. Besides statins, ACEIs and/or ARBs, several other interventions with antioxidant properties, such as Vitamin C and E, thiazolidinediones, N-acetylcysteine, probucol, nitric oxide donors or precursors, NADPH oxidase inhibitors, Xanthine oxidase inhibitors have emerged as novel strategies in the prevention and treatment of AF [6-10]. In this chapter, we aim to summarize recent evidence regarding antioxidant therapies in the prevention and treatment of atrial fibrillation