Miracle-dz/UniFAR-FTUs huggingface dataset:
Impulsive Control and Synchronization of Chaos-Generating-Systems withApplications to Secure Communication

When two or more chaotic systems are coupled, they may exhibit synchronized chaotic oscillations. The synchronization of chaos is usually understood as the regime of chaotic oscillations in which the corresponding variables or coupled systems are equal to each other. This kind of synchronized chaos is most frequently observed in systems specifically designed to be able to produce this behaviour. In this thesis, one particular type of synchronization, called impulsive synchronization, is investigated and applied to low dimensional chaotic, hyperchaotic and spatiotemporal chaotic systems. This synchronization technique requires driving one chaotic system, called response system, by samples of the state variables of the other chaotic system, called drive system, at discrete moments. Equi-Lagrange stability and equi-attractivity in the large property of the synchronization error become our major concerns when discussing the dynamics of synchronization to guarantee the convergence of the error dynamics to zero. Sufficient conditions for equi-Lagrange stability and equi-attractivity in the large are obtained for the different types of chaos-generating systems used. The issue of robustness of synchronized chaotic oscillations with respect to parameter variations and time delay, is also addressed and investigated when dealing with impulsive synchronization of low dimensional chaotic and hyperchaotic systems. Due to the fact that it is impossible to design two identical chaotic systems and that transmission and sampling delays in impulsive synchronization are inevitable, robustness becomes a fundamental issue in the models considered. Therefore it is established, in this thesis, that under relatively large parameter perturbations and bounded delay, impulsive synchronization still shows very desired behaviour. In fact, criteria for robustness of this particular type of synchronization are derived for both cases, especially in the case of time delay, where sufficient conditions for the synchronization error to be equi-attractivity in the large, are derived and an upper bound on the delay terms is also obtained in terms of the other parameters of the systems involved. The theoretical results, described above, regarding impulsive synchronization, are reconfirmed numerically. This is done by analyzing the Lyapunov exponents of the error dynamics and by showing the simulations of the different models discussed in each case. The application of the theory of synchronization, in general, and impulsive synchronization, in particular, to communication security, is also presented in this thesis. A new impulsive cryptosystem, called induced-message cryptosystem, is proposed and its properties are investigated. It was established that this cryptosystem does not require the transmission of the encrypted signal
Behavior of Shredded Rubber Tire With Sand Mixture And Interaction With Hexagonal Wire Reinforcement

Scrap tires are undesired urban waste and are increasing at alarming rates every year. This situation requires for finding new and beneficial ways to recycle and reuse large volumes of scrap tires. One of possibly practical applications consists of using shredded tires alone or mixed with soil as lightweight backfill materials for embankment and reinforced wall construction. In this study, various tests were performed to investigate engineering properties of shredded rubber tire with sand mixture (rubber-sand mixture) as well as interaction mechanism with hexagonal wire reinforcement.
Investigating Routines and Dynamic Capabilities for Change and Innovation

markdownabstractIn attempting to research the challenging question of how routines and dynamic capabilities are related to change and innovation, I utilize a variety of approaches that eventually complement each other in coming to answer in the following ways: 1) How can current knowledge regarding routines and dynamic capabilities be utilized to explain how organizations can solve various problems of various complexities? 2) To what extent are insights from the routine dynamics and dynamic capabilities research streams utilized by scholars from both fields and what are the implications of the current state of conversation? 3) How do routines and dynamic capabilities relate to exploratory innovation? 4) Can routines display dynamic patterns when they are enacted in constrained settings, yet actors are pressured by high levels of environmental variation? Each of the questions are asked with a different purpose and hence, require a substantially different approach. Hence, I have utilized four different methodologies throughout this dissertation.
PENGEMBANGAN BAHAN AJAR INOVATIF MELALUI PENDEKATAN SAINTIFIK PADA PENGAJARAN TERMOKIMIA

Penelitian ini bertujuan untuk mendapatkan bahan ajar inovatif dan interaktif yang terintegrasi dengan pendekatan ilmiah dan melibatkan teknologi informasi berbasis web. Jenis penelitian ini, termasuk penelitian dan pengembangan (penelitian dan pengembangan). Subyek adalah materi pengajaran termokimia. Sedangkan sampel yang digunakan dalam penelitian ini terdiri dari 20 siswa. Pemilihan sampel menggunakan teknik purposive sampling. Hasil analisis kimia bahan ajar umum adalah bahan ajar cukup valid, namun perlu dikembangkan dari berbagai aspek. Bahan ajar yang telah dikembangkan divalidasi oleh expert validator. Penilaian dilakukan berdasarkan kuesioner standar BSNP (Badan Standar Nasional Pendidikan). Berdasarkan data penelitian yang diperoleh rata-rata 23 responden berpendapat bahwa terdiri dari 3 dosen dan 20 siswa pada kualitas bahan ajar yang dikembangkan 3.49 yang menjadi kriteria penggunaan sarana pengajaran yang sangat valid sangat layak untuk digunakan dalam pembelajaran. Elaborasi rata-rata keseluruhan responden terhadap kualitas bahan ajar yang dikembangkan adalah rata-rata hasil penilaian dosen Kimia Umum sebesar 3,66 dan hasil penilaian rata-rata siswa Pendidikan kimia yaitu sebesar 3,31.
Simulation Study for Determining the Best Architecture of Multilayer Perceptron for Forecasting Nonlinear Seasonal Time Series

Neural network is one of flexible nonlinear models that could handle various relationship patterns on data with high accuracy. The data-driven approach is one of the advantages of neural network models in solving complex problems in forecasting. The selection of the best model becomes one of the most important problems in the application of neural network for time series forecasting, which consists of determining the input, the number of neurons in the hidden layer, the activation function, and preprocessing method. This paper focuses on the simulation study to explore how to determine the best architecture of multilayer perceptron for forecasting nonlinear seasonal time series. The data that be generated from seasonal exponential smooth transition autoregressive model are used as a case study. The results show that the inputs and the number of neurons in the hidden layer are two main factors that affect significantly the forecast accuracy. In contrary, the activation function and preprocessing method do not significantly influence the forecast accuracy.
Survey Design and Descriptive Outcomes of Korean Survey

This paper explains the background and procedure of the International Comparative Survey on Lifestyle and Value, conducted in Korea by the funding of the Center for Social Wellbeing Studies, Institute for the Development of Social Intelligence, Senshu University. As the survey was conducted through a web survey, this paper has reviewed the history and methods, and strength and weakness of web survey. Korean survey was conducted using web panel, and was supplemented by integrating telephone survey for the elderly. After explaining detailed procedures for the survey and sampling method, authors compare the attributes of the data with other national data, such as Korean Census, Labor Panel survey, and Income Panel survey. The Korean survey was very successful in terms of implementation, and the overall sample characteristics reflect the reality of Korean Society. The data collected will contribute to the understanding of the nature of social well-being and the mechanisms of their operation within a Korean context, as well as supporting comparative study of social well-being in an Asian context.
Groundwater Quality Assessment to Estimate its Suitability for Different Uses in Assiut Governorate , Egypt

53 Published By: Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd. AbstractGroundwater in Assiut governorate has a part icular importance where it is the second source for fresh water used for drinking, agricultural, domestic, and industrial pu rposes. Three hundred and thirty five wells were available during t he period 2006 to 2009, and were subjected to analysis for che mical characteristics. These data has been used to conclu de two main results; the first one is preliminary evaluation of suitability of groundwater for drinking and irrigation purposes by comparing those parameters with world health organization (WHO) standards and Egyptian standards. the second one is building the correlation matrix between the groundwater quality pa rameters which are major ions, EC, TDS, SAR, Na%, RSC, TH, KI, PI, MH, CAI, and C.R. with comparing chemical parameters with WHO (1996) and Egyptian standards for drinking, it s hows that concentrations of Na+, K+, Ca2+, Mg2+, Hco3-, SO42−, and Fe are lower than the permissible limits in 80% of well s. Groundwater wells were classified according TDS as abo ut 93 % of wells have TDS less than 3000 mg/l, thus groundwat er is suitable for irrigation.
Gr upSM Granulomatous Meningoencephalitis Balamuthia mandrillaris in Peru : Infection of the Skin and Central Nervous System

Balamuthia mandrillaris is an emerging cause of sub acute granulomatous amebic encephalitis (GAE) or Balamuthia mandrillaris amoebic infection (BMAI). It is an emerging pathogen causing skin lesions as well as CNS involvement with a fatal outcome if untreated. The infection has been described more commonly in inmunocompetent individuals, mostly males, many children. All continents have reported the disease, although a majority of cases are seen in North and South America, especially Peru. Balamuthia mandrillaris is a free living amoeba that can be isolated from soil. In published reported cases from North America, most patients will debut with neurological symptoms, where as in countries like Peru, a skin lesion will precede neurological symptoms. The classical cutaneous lesionis a plaque, mostly located on face, knee or other body parts. Diagnosis requires a specialized laboratory and clinical experience. This Amoebic encephalitis may be erroneously interpreted as a cerebral neoplasm, causing delay in the management of the infection. Thediagnosis of this infection has proven to be difficult and is usually made post-mortem but in Peru many cases were pre-morten. Despite case fatality rates as high as > 98%, some experimental therapies have shown some success with the use of azoles, flu cytosine, pentamidine, sulfadiazine, and synergistic antiprotozoal therapy with macrolides and phenothiazines. Wehave had experience with the use of Miltefosine and it has been successful. A. Martín Cabello-Vílchez MSc, PhD* Universidad Peruana Cayetano Heredia, Instituto de Medicina Tropical “Alexander von Humboldt” *Corresponding author: A. Martín Cabello-Vílchez, Universidad Peruana Cayetano Heredia, Instituto de Medicina Tropical “Alexander von Humboldt”, Av. Honorio Delgado No430, San Martín de Porras, Lima-Perú, Tel: +511 989767619, Email: alfonso.cabello@upch.pe Published Date: February 16, 2017
Energy cost of locomotion of robotic-assisted walking in paraplegics: a case report

Background: Mechanical orthoses are frequently withdrawn from the domestic use, due to the high energy required by walking. Purpose: This study aimed at assessing the metabolic expenditure of walking with an electrically-powered exoskeleton and to compare the energy cost of locomotion with the costs of passive or hybrid devices. Methods: Expiratory gases concentration and heart rate were measured during wheelchair- and exoskeleton-assisted locomotion, at the most comfortable- and lower-speed in a paraplegic subject (female, 28 years, lesion level L 1 , ASIA B). Energy cost of locomotion was calculated and compared to previously published data. Results: Oxygen consumption during exoskeleton-assisted walking at lower and comfortable speed (12.4±0.8, 15.5±0.9 ml·kg -1 ·min -1 , respectively) were similar to the expenditure measured during wheelchair-ambulation at comfortable speed (14.5±0.7 ml·kg -1 ·min -1 ; P=ns). Walking energy cost was higher during locomotion with exoskeleton (0.69±0.05 and 0.63±0.04 ml·kg -1 ·m -1 for lower and comfortable speed, respectively, P<0.001 between speeds) than wheelchair-ambulation (0.15±0.01 and 0.16±0.01 ml·kg 1 ·m -1 for lower and comfortable speed respectively, P<0.05 between speeds) but lower than those reported in previous studies. Conclusion: Considering the findings of this case report, compared to passive and hybrid orthoses, robotic exoskeleton increases walking speed and decreases energy-cost.
Online student perceptions of engagement, transactional distance, and outcomes

ABSTRACT This study explores student perceptions of engagement, transactional distance, and outcomes in online courses. Researchers also investigated linkages between these elements. Data were collected from students enrolled in online courses at three private universities located at different geographical regions in the United States. Six hundred sixty-seven students completed the Revised Scale of Transactional Distance developed by Paul, Swart, Zhang, and MacLeod and a modified version of Dixson’s Online Student Engagement scale during spring 2016 semester. Results indicate students experienced a relatively high level of engagement and a moderate level of transactional distance. Respondents perceived outcomes such as satisfaction, progression, and learning very positively. There were significant differences in responses based on gender and college standing. Student engagement, transactional distance, and outcomes were moderately correlated, and researchers confirmed transactional distance is a valid predictor of student engagement.
Optimizing Distribution Center Configuration: A Practical View of a Multi-objective Problem

The shape of a distribution center, as well as whether dock locations are on one side or two sides of the facility, impacts measures like travel distances and the number of dock locations that may be utilized. Thus, for a required number of pallet locations, there are multiple combinations of distribution center shape and dock configurations that should be evaluated against multiple measures. We have developed a practical model for making such evaluations and illustrate the model with data reflective of a partner in the Center for Engineering Logistics and Distribution.
An approximate analysis of heterogeneous and general cache networks

In this paper, we propose approximate models to assess the performance of a cache network with arbitrary topology where nodes run the Least Recently Used (LRU), First-In First-Out (FIFO), or Random (RND) replacement policies on arbitrary size caches. Our model takes advantage of the notions of cache characteristic time and Time-To-Live (TTL)-based cache to develop a unified framework for approximating metrics of interest of interconnected caches. Our approach is validated through event-driven simulations; and when possible, compared to the existing a-NET model [23].
Using a technology-organization-environment framework to investigate the factors influencing e-business information technology capabilities

One key focus of the business community is determining how to combine information technology capability (IT capability) with business strategies. However, most of these studies have been based on a conceptual framework or researched the performance of e-businesses from a strictly technological point of view. This study sought to identify the factors that influence e-business IT capability using a technology-organization-environment framework. The subjects of this study were IT department heads in 1,000 large companies in Taiwan. Structural equation modeling was used to verify the validity of the research hypotheses. Results show that the key factors influencing e-business IT capability are as follows: IT maturity, IT infrastructure, IT human resources, support from top management, partnership quality, and competitive pressure. IT capability significantly affects the implementation of IT strategies. The results of this study could serve as important reference data for companies seeking to develop IT capability in the expansion of e-business.
PREVALENCE OF SOIL TRANSMITTED HELMINTHES IN CHILDREN ATTENDING PUBLIC PRIMARY SCHOOLS IN SAMARU, ZARIA, NIGERIA

The prevalence of geohelminth infection in children attending two public primary schools in Samaru, Zaria, Nigeria was studied, using stool samples and soil collected from various parts of the schools. The samples were analysed using formol-ether concentration method and observed under the microscope to check for the presence of the ova/eggs of geohelminthes. The overall prevalence of geohelminth eggs in soil samples was found to be 59.4% in both schools (Saidu Primary School: 26.5%; Amina Primary School: 32.8%). This is distributed as follows: eggs of Hookworm (28.1%), Taenia spp. (18.8%) and Trichuris trichuira (12.5%). The overall prevalence of geohelminth eggs in the stool samples of hundred pupils examined in both schools was 30% (Saidu Pri. School: 14%; Amina Pri. School: 16%) with distribution as follows; eggs of Hookworm (13%), Ascaris lumbricoides (7%), Taenia spp. (7%), T. trichiura (2%) and larvae of Strongyloides (1%). Children aged 5 – 9 years showed higher prevalence (16%) than those aged 10 – 14 years (14%). Prevalence of the infection was higher in males (19%) than in females (11%). The responses from questionnaires administered revealed that factors such as playing with soil, irregular hand-washing habits and infrequent use of footwear played a vital role in the transmission of geohelminthes in children.
A 622-MHz interpolating ring VCO with temperature compensation and jitter analysis

A 622-MHz interpolating VCO has been designed using a 0.72 /spl mu/m CMOS technology for use as a clock recovery circuit in ATM Sonet OC-12 applications. A temperature compensated biasing scheme is adopted so that the VCO maintains its center frequency and tuning range throughout the temperature range 0/spl deg/C-130/spl deg/C. Simulation shows the sensitivity of the VCO center frequency achieves -100ppm//spl deg/C. Jitter analysis indicates an rms timing jitter due to thermal noise to be 365-fs. Power consumption is 65-mW from a 5-V supply.
Learning a lightweight convolutional neural network for visual tracking and facial attribute analysis

In this thesis, we study the problems of object tracking and facial attribute analysis, in particular age and gender recognition. For object tracking, recently CNN based trackers have been proposed to improve tracking performance. Despite achieving state-of-the-art performance, existing CNN trackers still have many drawbacks. 1) Most of these methods utilize two separated CNNs for each input, while this strategy will increase much the number of model parameters, which consequently requires more labeled samples at the training stage. 2) Some CNN trackers can run at over 100 fps on GPU, but run very slowly on CPU due to the high complexity of network structure. In order to deal with these issues, in this thesis we propose a novel frame-pair based CNN architecture, which can balance tracking speed and accuracy. Instead of adopting two-stream CNNs, we fuse frame pairs in the input stage, resulting in a single-stream CNN tracker with much fewer parameters. The proposed tracker can learn generic motion patterns of objects with less video data compared with previous CNN based methods. The evaluation is conducted on the VOT14, OTB50 and OTB100 benchmark datasets. The proposed tracker achieves competitive results with state-of-the-arts but with much less memory and complexity. Our tracker can track objects in a speed of over 100 (30) fps with a GPU (CPU), much faster than most existing CNN based trackers. For age and gender recognition, CNN based methods have achieved state-of-the-art accuracy but they are time consuming for mobiles or low-end PCs for the following two issues.
Using Whats App for Developing Collaborative Writing among English Majors at MUST

T he aim of this study was to develop collaborative writing using the Whats Apps among 3rd year English majors at Misr University for Science and Technology (MUST) in Fall 2017 semester. The problem of the study was that 3rd year English majors were not motivated enough in the writing class and had difficulty in communicating through writing with each other during the limited time of the class. So, the idea of using Whats Apps for developing writing skills was necessary especially that there is Wi Fi available at MUST. The researcher used the quasi- experimental design with two groups, experimental and control. Two instruments were used; a pre/ post collaborative writing skills test, and a reflection sheet. The results of the reflection sheet showed that 3rd year English majors did not use the Whats App in learning any language skill before and that they were satisfied with using it in the writing class. The writing skills test revealed that using Whats App was effective in developing collaborative writing among the participants in the study. Also, the results of the reflection sheet proved that the students of the experimental group were satisfied with using Whats App for developing collaborative writing.
PENERAPAN GAME EDUKATIF UNTUK MENINGKATKAN MOTIVASI BELAJAR SISWA SETINGKAT MADRASAH IBTIDAIYAH

Partners of this community services program are MIM Potronayan 1 and MIM PK Kenteng. One of problems faced by those schools is students get bored easily when attending the class, in this case is learning Aksara Jawa. Based on observations conducted previously, it could be noted that the root of the problem is both schools were only used printed materials for teaching in the class which is not interactive. In this community services, the team offer a multimedia-based learning media with educational game. The learning media mainly was developed using Construct 2 software. The objective of the community services is to implement the interactive learning media with educational game of Aksara Jawa for elementary school teachers and students. The results of the community services are involving application program of interactive learning media for computer and mobile computing devices, and teachers have been introduced with interactive learning media. The evaluation result showed that 91% teachers and students feel the application program increase student motivation for learning Aksara Jawa very significantly.