Miracle-dz/UniFAR-FTUs huggingface dataset:
A Systematic Study on the Reliability and Validity of the Japanese Smartphone Addiction Scale among the Youth in Japan

Background: Few studies in Japan have investigated smartphone addiction utilizing an international scale. This study aimed to evaluate the reliability and validity of the Japanese version of the Smartphone Addiction Scale (SAS) in Japanese youths and to examine the factors underlying smartphone overuse. Methods: We conducted a questionnaire survey in 2018 with participants from one high school (n=1,050) and one vocational school (n=83; age range, 15-24 years; median age, 17 years) in Japan. Data from 1,037 (male: 60.8%, n=631) questionnaires were analyzed. Results: Factor analysis showed six factors with factor loading ranging from 0.42 to 0.72 for the Japanese version of the SAS. Cronbach’s alpha was 0.94 for the 33 items in this scale. The scale showed good reliability for test-retest scores ( intraclass correlation coefficient 3,1 =0.92). Multiple linear regression analyses showed that the factors related to smartphone overuse were female gender, long smartphone usage duration, poor mental health, contact with virtual friends, and being a smartphone zombie. Contact with family and real friends were not associated with smartphone overuse. Conclusions: Although smartphone overuse differs depending on one’s cultural and social background, the Japanese version of the SAS is as good as the other language versions. Thus, this scale was shown to be reliable and valid in the Japanese youth.
Diagnosis of lymph node metastasis in non-small-cell lung cancer (NSCLC) patient on F-18-FDG PET/CT

Lung Cancer is a leading cause of death worldwide, and about 85% of lung cancer is non-small cell lung cancer (NSCLC). The staging of lymph nodes in NSCLC patients is extremely important because respective stages require different treatments. FDG-PET/CT is a gold standard for lymph node metastasis staging of NSCLC. However, the results of discriminating lymph node staging on 18F-2-fluoro-2-deoxy-d-glucose (FDG) positron emission tomography (PET) / computed tomography (CT) still needs improvement. In addition to the traditional image parameters of FDG-PET/CT such as standardized uptake value (SUV), there are many other parameters available from FDG-PET/CT images, for example, the lymphatic drainage pathway. Other than this, texture analysis which distinguishes subtle difference can also be a way to define lymph node staging. For the purpose of a better accuracy on lymph node metastasis diagnosis on NSCLC patient in FDG-PET/CT, this research developed a computer-aided diagnosis (CAD) system to improve the diagnostic efficiency, which achieved 88.056% accuracy.
Gigahertz voltage-controlled ring oscillator

Designs for ring oscillators that provide a 2:1 range of voltage-controllable frequency are compared. Simulated results are given for a ring oscillator intended for a 1 ? m NMOS monolithic IC implementation. The circuit displays a variable frequency from 1.5 GHz to 2.5 GHz, and requires no off-chip tuning elements.
Occupational Performance of Children and Adolescents with Mucopolysaccharidosis Using Assistive Technologies

Mucopolysaccharidoses (MPS) are a specific group of genetic diseases in which due to the accumulation of glycosaminoglycans (GAGs) in different organs and tissues, causes multisystemic changes that compromise the functionality and occupational performance of individuals. Occupational performance, understood as the participation and execution of activities of daily living, may be favoured using Assistive Technology (AT). Since there are no studies reporting the influence of AT on the occupational performance of children and adolescents with MPS, the objective of this study was to evaluate the occupational performance in self-care activities, based on the use of low-cost AT in children and adolescents with Mucopolysaccharidosis. Six individuals with MPS types I, IV-A and VI, aged 9 to 16 years participated. The instruments used for data collection were the Pediatric Disability Assessment Inventory (PEDI) self-care area only, and the Canadian Occupational Performance Measure (COPM). The results showed that the tasks that presented the greatest disabilities in the performance are the areas of dressing, personal hygiene and bath. Thus, TA resources were made for five activities related to dressing and one for personal hygiene. After the use of AT, there was a positive and significant change in occupational performance and satisfaction of these individuals. Thus, the use of AT can significantly improve the occupational performance of this population.
Temporal acceleration of time‐domain integral‐equation solvers for electromagnetic scattering from objects residing in lossy media

The computational cost and memory requirements of classical marching‐on‐in‐time (MOT)‐based time‐domain integral‐equation (TDIE) solvers for analyzing scattering of electromagnetic waves from surfaces residing in lossy media scale as O(N 2sN 2t ) and O(N 2sNt), respectively; here, Ns and Nt are the number of spatial and temporal degrees of freedom of the surface currents. The quadratic dependency of these costs upon Ns and Nt prevents these methods from being applied to the analysis of large‐scale scattering phenomena. Here, an accelerator is proposed to improve the scaling of these TDIE solvers' computational complexity and memory requirements with Nt. The accelerator casts temporal tails in convolutions of the lossy medium‐wave‐equation Green's function and TDIE solver temporal‐current basis functions in terms of a Prony series. This representation enables computation of the fields produced by surface currents within an MOT framework via recursive convolution. A technique that allows the reuse of Prony series poles for extended spatial interaction ranges, thereby greatly enhancing the scheme's efficacy, is proffered. The scheme's computational cost and memory requirements scale as O(N 2sNtlog Nt) and O(N 2s log Nt), respectively, with fairly small multiplicative factors. Besides being useful in the analysis of scattering from electromagnetically small objects residing in lossy backgrounds, the proposed scheme also constitutes a key building block in the construction of improved lossy‐medium plane‐wave time‐domain algorithms with efficient near‐field evaluation capability. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 223–230, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20595
Cyberbullying in Rabat area Morocco: A Middle School Student Survey

Background:Despite being a widely debated health issue in several countries around the globe, in Morocco there is still little research on this phenomenon of cyber bulling.To examine the occurrence of cyber bullying among students in middle schools in Rabat area and to discover risk factors among students’ cyberbullying profiles is the main purpose of the present study.Methods: The study that is a cross sectional one is based on a nameless self –report questionnaire about subjected cyber bullying in the course of the previous twelve months. Indeed, it was in16 middle –schools in the urban areas of Rabat that data were collected. Aged 12 to 16 years, a number of 1914 students took part in the survey.Seeking the interconnection between the cyber bulling groups and independent variables we used a Multinomial Logistic Regression.Results:Cyber bullying has been announced by 54,5%(n=1043) CI 95% (52,26-56,72) of the sample, of which 18,8%(n=360), being victims only, 11,7% (n=224) being perpetrators only, and 24,0% (n=459) being perpetrators/victims. But there wasn’t any important difference to be mentioned in profile between genders. Text messages and exclusion from internet groups were the most common genre of cyber bullying behavior. Concerning traditional bullying, the prevalence were 35% (n=669) of whom 16,4% (n=313) victims only, 7,6% (n=145) perpetrators only and 11%(n=211) perpetrators/victims. Our research showed that traditional bullying was the basic risk factor of cyber bullying. Conclusion:In brief cyber bullying is one of the most widely spread phenomenon among adolescents in middle schools in Rabat area. Being involved in traditional bullying is the main risk. Consequently, urgent is the need to take actions against it either to eradicate violence in schools or at least reduce it.
Improvement of Ride Quality of Railway Vehicle by Semiactive Secondary Suspension System on Roller Rig Using Magnetorheological Damper

Ride quality became a very important factor in the performance of railway vehicles according to the expansion of high-speed railways and speedup of velocity of railway vehicles. In this study, the results of applying the MR (magnetorheological) lateral damper on the secondary suspension to reduce the vibration of the car body, directly relating to the ride quality of railway vehicles, were mentioned. In order to verify the control performance of MR dampers, a 1/5 scaled railway vehicle model was constructed, and numerical simulation and experimental tests were conducted. The MR damper for the experimental tests was produced and was attached between the car body and bogie of a full scaled vehicle, and a vibration controlling test was performed to improve ride quality on a roller rig. The skyhook control algorithm was used as the controlling technique, and regarding the test results, the RMS (root mean square) value was found by compensating the frequency of the lateral vibration based on the UIC 513 R Standard about the ride quality of railway vehicles. As a result of the test, it could be confirmed that vibration was reduced by approximately 24% when attaching the MR damper between the bogie and the car body compared to when applying a passive damper.
Values of Islam as Religion: Challenges to Modernism for Present and Future

This article attempts to find out the challenges of Islam dealing modernism from the standpoint of religious faith and values. Actually, the concept of modernism and incredible growth of materialism symbolize the faith and religion merely unscientific inculcating such mysterious and uncertain matters. Islam’s relationship as religion with the modernism, though it goes far into antiquity, has been overburdened with rivalries and marred by conflicts. But, certainly Islamic faith and other traditions are governed in the belief of oneness in God with being His all omnipotent and absolute powers that promulgate denoting challenges in the modern life of the world, particularly in the climax of modern scientific developments concerted by western world. The article also shed lights on the comprehensive analysis regarded the necessity of Islam with a view to reconstructing modernism as well as glorifying Islamic faith bearing out as only universal religious ideology in the world forever rather modernism or more than that.
The Rh-1 full-size humanoid robot: Design, walking pattern generation and control

This paper is an overview of the humanoid robot Rh-1, the second phase of the Rh project, which was launched by the Robotics Lab at the Carlos III University of Madrid in 2002. The robot mechanical design includes the specifications development in order to construct a platform, which is capable of stable biped walking. At first, the robots' weights were calculated in order to obtain the inverse dynamics and to select the actuators. After that, mechanical specifications were introduced in order to verify the robot's structural behaviour with different experimental gaits. In addition, an important aspect is the joints design when their axes are crossed, which is called 'Joints of Rectangular Axes' JRA. The problem with these joints is obtaining two or more degrees of freedom DOF in small space. The construction of a humanoid robot also includes the design of hardware and software architectures. The main advantage of the proposed hardware and software architectures is the use of standardised solutions frequently used in the automation industry and commercially available hardware components. It provides scalability, modularity and application of standardised interfaces and brings the design of the complex control system of the humanoid robot out of a closed laboratory to industry. Stable walking is the most essential ability for the humanoid robot. The three dimensional Linear Inverted Pendulum Model 3D-LIPM and the Cart-table models had been used in order to achieve natural and dynamic biped walking. Humanoid dynamics is widely simplified by concentrating its mass in the centre of gravity COG and moving it following the natural inverted pendulum laws 3D-LIPM or by controlling the cart motion Cart-table model. An offline-calculated motion pattern does not guarantee the walking stability of the humanoid robot. Control architecture for the dynamic humanoid robot walking was developed, which is able to make online modifications of the motion patterns in order to adjust it to the continuously changing environment. Experimental results concerning biped locomotion of the Rh-1 humanoid robot are presented and discussed.
Structural Analysis Methods for Structural Health Management of Future Aerospace Vehicles

Two finite-element-based, full-field computational methods and algorithms for use in Structural Health Management (SHM) systems are reviewed. Their versatility, robustness, and computational efficiency make them well suited for real-time, large-scale space vehicle, structures, and habitat applications. The methods may be effectively employed to enable real-time processing of sensing information, specifically for identifying three-dimensional deformed structural shapes as well as the internal loads. In addition, they may be used in conjunction with evolutionary algorithms to design optimally distributed sensors. These computational tools have demonstrated substantial promise for utilization in future SHM systems.
The Effect of Different Warm Additives on Performance Properties of HMA

The effect of three types of warm additives, including Sasobit, Aspha-min and Evotherm DAT, on the compaction temperature, rutting resistance, low temperature resistance and moisture resistance of hot asphalt mixture (HMA) were evaluated by laboratory test. The test results show that Sasobit, Aspha-min and Evotherm DAT can reduce the compaction temperature of HMA by 27°C, 20°C and 30°C respectively. These warm additives all can improve obviously the rutting resistance of HMA. However, Evotherm DAT can increase low temperature cracking resistance ability of HMA. Aspha-min has obviously negative effect on the low temperature cracking resistance and moisture resistance of HMA. Therefore, it is necessary to investigate performance properties of HMA when selecting warm additives.
Surface wave propagation in concrete structures by using piezoelectric actuators/sensors

Concrete structures have been used widely in civil infrastructural systems especially in bridges. Due to the complex nature of its microstructure, nondestructive testing (NDT) of concrete inherently imposes many challenges, which can cause severe limitations to both the resolution and sensitivity of the observed signals. In this study, surface wave propagation in concrete is examined and simulated by using a surface bonded active piezoelectric actuators/sensors system experimentally and numerically, especially at high frequency. First, different experimental tests are conducted to evaluate effects of the loading frequency upon the resulting surface wave propagation. Secondly, the numerical results are compared with experimental data. The very good agreement shows the great feasibility and potential of surface wave signals by using piezoelectric actuators/sensors to locate and characteristics of surface damages.
The Modeling of Solar Cells

The world is increasingly experiencing a great need for additional power resources so as to reduce dependency on conventional sources, and solar energy could be an answer to that need. However, the performance of solar energy depends on solar radiation, ambient temperature, and load impedance. A practical engineering mathematic model of solar cell is developed and a general simulation model of PV cell is created based on Simulink system, which is convenient to be applied to the research and development of solar cell.
Optical transposition transform interconnects using a free-space and fiber hybrid module

Cross-connect switch is a popular switching architecture for telecom and datacom applications. Using various switching components and a k-shuffle interconnect, a cross-connect switch can be configured for general-purpose, blocking as well as non-blocking networking applications. We show that a 1D k-shuffle interconnect pattern is topologically equivalent to a 2D transposition transform pattern. Based on this observation and using space-invariant optical components, the transposition transform interconnect is experimentally implemented. To achieve a sensible packing, we propose to incorporate fiber arrays into the implementation so that the interconnect offers connectorized plug-and-play capability with its switching arrays. Experimental results of implementing a 256 X 256 connectorized free-space and fiber hybrid transposition transform interconnect for cross-connect switching are presented. Key parameters, such as insertion loss, cross- talk, and bit-error-rate of the hybrid interconnect module are measured. Video data are used to demonstrate interconnect quality of various link channels. Scalability to larger interconnects are speculated.
Attribute based Weighted Mechanism for Community Detection in Social Internet of Things

A new paradigm of Internet of Things (IoT) is emerging rapidly by socializing the smarter physical devices called as Social Internet of Things (SIoT). Social relationships established between these objects make them autonomously connected for services, without any human intervention. Since SIoT is a large-scale network with huge data involved, the content spreading behaviour need to be exploited. In order to ensure the growth of the content spread, the large-scale SIoT network is divided into several communities based on the social attributes in this work. We first divided the SIoT network into high quality Sociality based Weighted Communities (SWC). Social attributes like user preferences, social similarities, and mutual friends’ degrees are main metrics for achieving the best rate function. The weighted method based on these social attributes determine the nodes to be present in their respective communities. Also, the controlling of the local community augmentation using cluster concepts is done in our approach. Finally, a Credential Acclaimed Information Spreading (CAIS) mechanism is proposed which selects the best node with the maximum credential to surge the content spreading behaviour in the detected communities of SIoT network. The proposed social-driven attribute based weighted mechanism for community detection is validated using three diverse real-world datasets such as CASAS, MIT and ARAS dataset containing 427 sensors. Investigational outcomes validate that the overall performance of the proposed method overwhelms the conventional community detection algorithms like Louvain, Girvan Newman, Bron Kerbosch, Infomax and the recent state-of-art-approaches interms of spreading outcomes, NMI, modularity, F-measure, precision, recall and computational time.
THE STRENGTHENING OF BRUNEL'S THAMES TUNNEL.

Construction of Brunel's tunnel under the River Thames commenced in 1825, and was opened to the public in 1843. After several years in use as a pedestrian tunnel, it was converted for railway operation, reopening for rail traffic in 1869. The tunnel eventually became absorbed into the London Underground network, as part of the East London Line. Following a system-wide risk assessment of its subaqueous structures in the early 1990s, LUL concluded that the tunnel was in need of strengthening. A seven-month closure was proposed for the works to be carried out, starting on 25 March 1995. LUL's originally planned relining scheme required significant modification as a consequence of the late Grade II* listing of the tunnel on 24 March 1995. This paper summarizes the site investigation process and evolution of the relining scheme, together with the execution of the contract works, including tracklaying. Separate ground treatment works above the southern section of tunnel are also briefly described. (A)
Embedding Psychological Factors in Technology Design to Improve Adherence to Physical Activity: Literature Review and Survey (Preprint)

BACKGROUND Physical inactivity is a main risk factor of death worldwide, and contributes to psychological and physical problems, including obesity. Physical activity (PA) is critical to preventing health deterioration. Many technological interventions designed to promote PA have limited efficacy as some critical variables affecting PA are not considered. This study aims to understand the variables affecting PA, including barriers or facilitators for doing PA to facilitate the design of effective interventions OBJECTIVE (1) To investigate the mediating non-demographic variables of physical (in)activity, with emphasis on psychological variables, (2) to study which PA variables are considered in the design of intervention technologies to promote PA, (3) to provide a tool – a questionnaire- that allows the identification of PA variables when exploring the design space, (4) to investigate the relationship of PA variables with individuals' weight and actual PA level. METHODS We conducted two literature reviews on PA barriers/facilitators, using PsycINFO and ACM Digital Libraries. The PsycINFO literature search yielded 470 articles of which 50 articles were finally selected; PA barriers/facilitators were studied from these articles and used to design the Barriers Questionnaire for PA (BQPA) with 63 items. The ACM literature search yielded 123 articles, of which 15 articles were finally selected and used to evaluate the attention given to the PA variables in the design of technologies for PA. We then conducted a survey study using the BQPA, the International Physical Activity Questionnaire and demographic questions. The survey was filled out by a representative sample of the Spanish population (N=1012), including participants from all PA and weight levels. RESULTS 38 variables were identified as PA barriers/facilitators. Few studies evaluate their relationship with the actual PA level, and most lack an actual PA measure. The same barriers are reported for the overweight/obese and the normal-weight population, but some barriers are stronger in the obese. Only 17 out of the 38 variables were considered when developing PA technologies. On the survey data, we related the item scores with the participant’s PA level and weight. We found significant correlations between PA level and 62 BQPA items (all P<=.027) and between weight group and 35 BPQA items (all P<=.049). CONCLUSIONS Our contribution is three-fold. First, the literature reviews provide an in-depth account of barriers to PA in normal-weight, overweight and obese populations, and illustrate the lack of consideration of these in the design of PA technologies. Second, we propose a novel questionnaire on barriers to PA, specifically designed to ensure consideration of factors identified in the literature review. Third, we show high correlations between many identified variables and PA participation, and demonstrate how actual PA levels and body weight must also be considered. These results can guide future work on technological interventions for PA.
Performance of tall buildings in Concepción during the 27 February 2010 moment magnitude 8.8 offshore Maule, Chile earthquake

Concepción, near the southern end of the fault rupture zone of the offshore Maule, Chile earthquake, suffered significant damage to all types of structures. Tall reinforced concrete buildings in the region were also affected, some severely. Spectacular collapse and partial collapse were experienced in two buildings, and many buildings had failure of thin shear walls that lacked sufficient boundary element confinement. Concrete spalling and crushing occurred and reinforcing steel buckled and were sometimes fractured. Copyright © 2010 John Wiley & Sons, Ltd.