Miracle-dz/UniFAR-FTUs huggingface dataset:
Course-Related Student Anxiety During COVID-19: A Problem and Some Solutions

We examine the prevalence and sources of student anxiety during the rise of the COVID-19 pandemic (March 23 to May 10, 2020) and the implications for online course design and delivery. Using a standard screening tool (GAD-7) with supplemental open-response questions, we show that students had relatively high levels of anxiety based on a convenience sample of 266 undergraduate students enrolled at four U.S. institutions. In this sample, we find that 58 percent of students had clinically significant levels of anxiety in one or more weeks of the seven-week study period. Thirty-six percent of students sustained this level of anxiety on average over the entire period. These rates are high compared to published rates for the general population (1.6 percent to 8.5 percent) and even among college students (17 percent to 40 percent). Using content analysis, we identify five primary sources of student anxiety: traditional academic concerns (72 percent), online learning (67 percent), general uncertainty (38 percent), health and safety (27 percent), and financial issues (12 percent). We similarly identify four ways that students say instructors can help them reduce their anxiety: improve the course structure and organization (36 percent), improve communication (35 percent), improve course materials and assignments (33 percent), and continue expressions of care and support (27 percent). Finally, we look at how these four student recommendations connect more broadly to (1) the published academic literature, (2) our own experiences as instructors, and (3) suggestions from other practitioners.
Multimodal Stress Estimation Using Multibiological Information: Towards More Accurate and Detailed Stress Estimation

non-contact stress estimation methods using camera have been investigated, which involve capturing biological information in the form of facial and skin videos. Specific biological information that can be Abstract In this paper, we propose a method for estimating stress levels using multibiological information obtained from red-green-blue (RGB) facial videos. The most popular method for estimating stress is by questionnaire, which is not highly objective or accurate. To estimate stress levels more accurately, it is desirable to establish the method which can estimate with objective and accurate information. In recent years, many methods for using biological information have been proposed. In this study, we used three types of biological information to estimate stress: pulse rate variability, blink rate, and pupil size, which were captured using an RGB camera. Results showed that the use of these biological signals improved the accuracy of stress estimation. Moreover, using biological information in a multimodal manner enabled the most accurate and detailed stress estimation.
Emotional Intelligence and Its Relationship to Transformational Leadership and Key Project Manager Competences

Key dimensions of project manager behaviors considered to be associated with successful project outcomes have included both appropriate collaborative behaviors and transformational leadership. More recently, emotional intelligence has been suggested as a unique area of individual differences that is likely to underpin sets of behaviors in this area. Based on a sample of 67 UK project managers, it was found that emotional intelligence ability measures and empathy explained additional variance in the project manager competences of teamwork, attentiveness, and managing conflict, and the transformational leadership behaviors of idealized influence and individualized consideration, after controlling for cognitive ability and personality.
EFFECTS OF HEATING BY ULTRASOUND AND AEROBIC ACTIVITY ON FLEXIBILITY OF THE HUMAM TRICEPS SURAE - A COMPARATIVE STUDY

The objective of this study was to compare the effects of increasing temperature by ultrasound and cycling on the triceps surae muscle in vivo. Seventy-nine students were randomly assigned to three groups (control, ultrasound, and bicycle). The subjects were tested for ankle flexibility and then heated based on their group. Then the subjects were again tested for ankle flexibility. Comparisons of the three groups showed a tendency of the groups that received intervention to reach a greater range of motion [mean difference of 7,4 (SD= 2,9) (P=0,000) for bicycle group and 5,8 (SD= 2,3) (p= 0,000) for ultra-sound group] than control group [mean difference of 4,7 (SD= 3,1) (P=0,000)]. The results of this study confirm previous results from in vitro studies and could be a useful reference for clinical application providing information about the effects of heating on flexibility.
Fast edge-preserving noise reduction for ultrasound images

Edge-preserving noise reduction is an essential operation for computer-aided ultrasound image processing and understanding. This paper describes a novel filter which is a two-dimensional extension of the one-dimensional Savitzky-Golay filter. The new filter, referred to as the two-dimensional weighted Savitzky-Golay filter, is based on the least squares polynomial surface fitting to image intensities. The performance of the proposed filter has been compared with that of the commonly used median filter in reducing speckle noise in ultrasound images. Experimental results indicate that the new filter can achieve, at least, the same level of noise reduction and edge preservation as that of the median filter, but with far less computation rims. Since its complexity scales linearly with the problem size, the new filter is suitable for filtering problems with large windows. In addition, it also shows to be less sensitive to the size of the filtering window compared to the median filter.
Correlation and path analysis in wheat cultivars in the initial period of development

The cultivation of soybeans in the central region of the state of Rio Grande do Sul, has increased the interest of farmers for winter crops in the region. However, information related to crop development in a low-latitude environment is limited and necessary to improve crop management. The objectives of this article were to evaluate the linear relation between traits of spring wheat cultivars in the initial period of development in a low-altitude site. The experiments were conducted in two years in Santa Maria - RS. The experimental design used was randomized blocks, with ten wheat cultivars. The evaluations were carried out at the end of the tillering, where 300 plants were selected per year, obtaining a total sample number of 600 plants. After selecting, the character’s plant height (PH), the number of leaves of the main stem (NLMS), the number of leaves per plant (NLP), the number of tillers (NT), and the dry matter (DM) were measured. Pearson’s correlation coefficient matrices were estimated, and the path analysis of the main variable DM was performed as a function of PH, NLMS, NLP, NT, and DM. The cultivars TBIO Mestre and TBIO Sinuelo have a higher number of tillers. The NLP has a greater direct effect on DM, in field conditions it is recommended to count the NT, as it has a direct relationship with DM and NLP, associated with this, the character is fast to count and has agronomic value for the wheat crop. In a low-altitude cultivation site, the number of tillers depends on cultivation and environmental conditions. The cultivars TBIO Mestre and TBIO Sinuelo have high tillering capacity. Based on linear relationships, through the non-destructive selection of wheat plants with a greater number of leaves per plant and a greater number of tillers, plants with a higher dry matter mass are indirectly selected. However, the number of tillers is recommended because it is quick to measure.
Coordination of dual-channel supply chains under demand disruptions management decisions

This paper examines optimal decisions and coordination models for a dual-channel supply chain when the two end competition market demands are simultaneously disrupted. Firstly, we developed the pricing and production decisions models without demand disruptions and propose a revenue sharing contract to coordinate the dual-channel supply chain where the manufacturer is a Stackelberg leader and the retailer is a follower. We derived the conditions under which the maximum profit can be achieved in detailed. We compared the profits under normal case and disrupted case and quantified the information value of knowing demand disruptions. We proposed an improved revenue sharing contract to coordinate the dual-channel supply chain with demand disruptions. The results indicate that the adjusting prices and production quantity are the optimal decisions whether the demand disruptions case or normal case. We also find that the original revenue sharing contract is a special case of improved revenue sharing contract and the market scale change, channel substitutability and deviation cost affected the improved revenue sharing contract under demand disruptions. Finally, we further conduct numerical experiments to show how the demand disruption affects the decisions.
THE EFFECT OF EIGHT-WEEK PROPRIOCEPTION TRAINING PROGRAM ON DYNAMIC POSTURAL CONTROL IN TAEKWONDO ATHLETES

Objective: The purpose of this study was to examine the effects of 8-week training proprioception program on dynamic postural control in active taekwondo athletes. Procedures and Methods: In this study, training group consisted of 13 male and 13 female taekwondo athletes whereas control group consisted of 8 male and 8 female taekwondo athletes, 42 taekwondo athletes in all. The subjects of dynamic postural control performances were analyzed by Biodex marked device (Biodex, Inc., Shirley, and NewYork 950-302). The measurements were taken twice as before and after proprioception training program applied three times in a week and per week of 8. Package program SPSS for Windows 15.0 was used in the evaluation of data statistically. The results were evaluated at the significance level of 0,05. Results: At the end of training program,while female taekwondo athletes of experimental group were observed to have more performance in dominant,non-dominant leg dynamic postural control test(p 0.05). It was seen that there was no performance difference in post-test double leg,dominant and non-dominant leg dynamic postural control scores of female taekwondo athletes of control group. (p>0.05)Whereas a significant difference was observed in double-leg,dominant and non-dominant leg dynamic postural control scores gotten at the end of training program applied to the experimental group of male taekwondo athletes (p 0.05). Conclusion: In conclusion, it was thought that proprioception training program improves of female and male taekwondo athletes dynamic postural control performances.
A Study of Problematic Internet Use among Turkish CEIT 1 Students

In this research, problematic internet usage of Turkish Computer Education and Instructional Technologies (CEIT) students has been analyzed according to gender, class and daily internet usage. The subjects were 162 CEIT students from three universities in Istanbul, Turkey (Marmara University, Maltepe University and Yildiz Technical University). The instruments were Personal Information Form and Generalized Problematic Internet Use Scale 2 (GPIUS2). The following results were obtained; (a) CEIT students have above medium level of problematic internet usage; (b) Male CEIT students are, compared to female CEIT students, more oriented towards problematic internet usage; (c) CEIT students who have longer periods of daily internet usage are more oriented to problematic internet usage; (d) 1 st grade CEIT students are more oriented to problematic internet usage than 4 th grade CEIT students. It can be said that the above-medium problematic internet use inclination of CEIT students heralds the potential problems in future. To sum up, attempts underlying the fact that immediate precautions must be taken for CEIT students and technology related departments should be started without delay. Based on this deduction certain suggestions have been presented at the end of research.
Working Paper 08-14 - Public support for R&D and the educational mix of R&D employees

In this paper we assess the impact of public support for RD higher education (second stage and first stage respectively); and other qualifications. Estimations show that public support significantlyraises the share of researchers holding a PhD. There are indications that PhDs substitute for R&D employees with a lower degree. We also show that controlling for the changes in the educational mix of R&D personnel lowers the estimates of the impact of public support on the average wages of researchers.
IMPROVEMENT IN THE GEOFENCING SERVICE INTERFACE USING INDOOR POSITIONING SYSTEMS AND MOBILE SENSORS

The current state of location-based services provides spatial information delivery for mobile users based on position data taken from GPS sensors. However, sometimes the spatial information delivery service includes unwanted information. In particular, push-based or passive information delivery has a high probability that users receive unwanted information. We propose a new spatial information delivery to improve the integrity of spatial information delivery. We conducted an experiment using an Indoor Messaging System and an accelerometer, and concluded that our methodology can detect user behavior without accessing personal information and reduce the amount of spam information.
A Comparison of Exercise Intensity on Different Player Levels in Table Tennis

The aim of the present study is to compare the physical fitness of table tennis players and the exercise intensity during a table tennis singles match with special reference to the different player levels. Thirty-three healthy men volunteered to participate in this study. They were divided into three samples: recreational level, regional level and league level. All players were subjected to a VO2max Fitness Test on the motorized treadmill. Measuring heart rate was realized with the monitors Polar RS800 during three table tennis matches. The samples of heart rate were stored in 1 second intervals and were transferred to the software ProTrainer 5. The matches were played on 3 games to 11 points with opponent from the same player level. The results showed significant differences in aerobic capacity (VO2max) and resting heart rate among the players on the recreational, regional and league level. The best values were in the league players. We found a significant positive relationship between player levels and heart rate responses. The table tennis skill level was a significant factor in the level of exercise intensity in the singles matches.
Lessons learned from blunt trauma abdomen: Surgical experience in level I trauma centre.

Objectives The number of accident cases is increasing day by day, so as the challenges. With an emphasis on trauma care, the government started a 120 bedded level I trauma centre in northern India catering to a population of 2.8 million in June 2018. Through this article, we aimed to share our experience of blunt abdominal trauma management from a new level I trauma centre. Material and Methods In this retrospective observational study, historical analysis of all available records from July 2018 to March 2020 was done. Inclusion criteria included blunt trauma abdomen with or without associated injuries. Data regarding age, sex, mechanism of injury, time taken to reach the hospital, the pattern of solid organs and hollow viscus injuries, associated extra abdominal injuries, mode of treatment, complications, length of ICU and hospital stay, and mortality were reviewed. Results Overall, 154 cases sustained abdominal injuries during the study period. Seventy-five percent were male. The most common cause of blunt trauma abdomen was road traffic crashes. Operative management was required in 57 (37.01%) cases while 97(62.98%) were managed non-operatively (NOM). Mean ICU stay was 05.73 days, while the average hospital stay was 12 days (range 10-60 days). Procedures performed included splenectomy, liver repair, primary closure of bowel injury, and stoma formation. Complications occured in 16.88% cases and the overall mortality rate was 11.68%. Conclusion The study revealed that among 154 cases of fatal blunt abdominal trauma, road traffic crash was the most common cause of blunt abdominal trauma, predominantly affecting males. The visceral and peritoneal injury frequently perceived was liver in 40 cases (25.9%), spleen 66 (43%), intestine 21(13.6%) and kidney 13 cases (09%). Abdominal injury was associated with other injuries like head, chest and extremity injuries in 52.5% cases. Duration of injury, presence of associated injury and preoperative ventilation requirement were independent predictors of mortality apart from contributary factors such as clinical presentation, organ involved and presence of complications.
A study on ship automatic berthing with assistance of auxiliary devices

ABSTRACT The recent researches on the automatic berthing control problems have used various kinds of tools as a control method such as expert system, fuzzy logic controllers and artificial neural network (ANN). Among them, ANN has proved to be one of the most effective and attractive options. In a marine context, the berthing maneuver is a complicated procedure in which both human experience and intensive control operations are involved. Nowadays, in most cases of berthing operation, auxiliary devices are used to make the schedule safer and faster but none of above researches has taken into account. In this study, ANN is applied to design the controllers for automatic ship berthing using assistant devices such as bow thruster and tug. Using back-propagation algorithm, we trained ANN with set of teaching data to get a minimal error between output values and desired values of four control outputs including rudder, propeller revolution, bow thruster and tug. Then, computer simulations of automatic berthing were carried out to verify the effecttiveness of the system. The results of the simulations showed good performance for the proposed berthing control system.
The Pathology of Poliomyelitis and the Vaccines and Nonvaccine Therapy

Poliomyelitis is an exclusively human disease that mainly affects children. Clinical features of poliomyelitis can be varied, from mild illness to the most severe paralysis, and the factor why poliomyelitis has different performances in individuals has been proved strongly correlated with membrane protein CD155. The nervous system shows a special protecting phenomenon against the invasion of poliovirus, and the mechanism is not very clear at present. Vaccines are the main means of preventing and controlling polio, and many different vaccines have been invented in the process of fighting polio. Inactivated polio vaccine (IPV) and oral polio vaccine (OPV) are the two main vaccines. IPV is known for its safety while OPV is widely used in developing countries because of its relatively low cost. This usage also leads to some side effects: vaccine-associated paralytic polio (VAPP) and vaccine-derived poliovirus (VDPV). Now, for polio eradication, the elimination of these two diseases has become particularly important. Thus, a new type of vaccine was created: sequential IPV-OPV with the safety of IPV and the low cost of OPV. This paper will talk about the different polio vaccines and their effects. An enormous difference between people who have gotten the vaccine and people who have not got the vaccine. Comparing the two kinds of people, people who get normal poliovirus, and people who get poliovirus after taking a vaccine, known as VAPP (vaccine-associated paralytic poliomyelitis), the former cannot get full recovery whole life and the latter has a very low possibility. In conclusion, people should take vaccines if it is affordable for them.
Isolated Airfoil-Tip Vortex Interaction Noise

An experimental investigation was conducted in the UARL Acoustic Research Tunnel to define the noise characteristics associated with the interaction of a stationary tip vortex and a downstream stationary airfoil. This model test geometry simulated, in its simplest form, the tip vortexblade interaction which occurs on single rotor helicopters during hover. For moderate to high lift test conditions, the vortex-airfoil interaction was found to cause local blade stall with an attendant increase in the blade far-field noise. These results indicated that this interaction may be an important source of helicopter broadband noise during hover. Cross-correlation measurements conducted amongst surface-mounted and far-field microphones demonstrated that the operative noise mechanism was "trailing edge noise" arising from the interaction of stall generated eddies with the airfoil trailing edge. This mechanism would be expected to be responsible for increased noise at stall conditions in other, nonrotary wing, applications.
Assessment of Aging at FHWA’s Pavement Testing Facility

Field cores were taken in 1995 and 2002 from eight asphalt pavements constructed in 1993 at FHWA's pavement testing facility to evaluate in situ pavement aging. Dynamic mechanical properties of these cores were evaluated by using the Superpave® shear tester. The moduli of aged pavements were also predicted from binder, aggregate, and mixture properties with available prediction models, and the aging severity levels of all pavements were compared between the lab-measured and model-predicted. Eight pavements with two polymer-modified and six unmodified binders were evaluated in this study. Polymer-modified asphalt pavements showed comparatively lower aging than unmodified asphalt pavements. For unmodified asphalt pavements, stiffer asphalts tended to have higher aging indices. The binder aging index was found to be inversely proportional to the loading frequency, and differences between the aging indices for different binders were higher at lower frequency. Comparison of lab-measured and model-predicted bin.
Probabilistic seismic hazard analysis for rock sites in the cities of Abu Dhabi, Dubai and Ra's Al Khaymah, United Arab Emirates

The United Arab Emirates (UAE) is undergoing very rapid development with one of the highest construction rates in the world. A number of studies of the seismic hazard in the UAE have been published in recent years, presenting diverse interpretations of the earthquake threat in this country of relatively low local seismicity, creating confusion regarding appropriate seismic design levels. Although there is inevitably considerable uncertainty associated with the assessment of seismic hazard in such a region, those studies indicating rather high levels of ground motion associated with a 475-year return period are found to be the result of inappropriate seismic source zonations that spread seismicity from the Zagros region of Iran into the Arabian Peninsula. A new probabilistic seismic hazard analysis is performed within a logic-tree framework, and the results displayed as uniform hazard spectra for rock sites in the cities of Abu Dhabi, Dubai and Ra's Al Khaymah in the UAE. The results support the UBC 1997 classification of the two former cities in Zone 0 (no seismic design required) whereas in Ra's Al Khaymah Zone 1 would be appropriate.
Main flux saturation modelling in double-cage and deep-bar induction machines

The available models of saturated double-cage and deep-bar induction machines are the current state-space model and the flux state-space model, where state-space variables are selected either as stator current and currents of both rotor cages, or stator flux linkage and flux linkages of both rotor cages. This paper presents a number of models of saturated double-cage (deep-bar) induction machines where alternative sets of state-spate variables are selected. The method of main flux saturation modelling relies on recently introduced concept of 'generalised flux space vector', which has originally been developed for modelling of saturated single-cage induction machines. The procedure and the novel models are verified by experimental study and simulation of self-excitation process in a double-cage induction generator.