Miracle-dz/UniFAR-FTUs huggingface dataset:
Investigation of Kalman filter divergence using robust stability techniques [combat aircraft tracking/navigation system]

Presents an overview of a preliminary study into the issues associated with Kalman filter stability. Future advanced combat aircraft will require further levels of system integration it is believed that Kalman filters will play a key role in this increased integration and consequently their performance and robustness are of interest. The paper applies the /spl mu/-analysis robust stability technique to a two dimensional tracking/navigation system which requires a nonlinear or extended Kalman filter. Results show that the robust stability margins provide an indication of poor robustness, under some circumstances, but further work is required to predict instability or divergence in the extended Kalman filter.
Acute Diarrhoea: Mothers’ Knowledge of ORT and Its Usage in Ibadan Metropolis, Nigeria

Abstract This paper explores indigenous Nigerian perceptions of childhood diarrhoea and its treatment pattern among health care givers in Ibadan metropolis. Furthermore, the paper also addresses the cultural interpretations of dehydration and the perceptions of oral rehydration therapy (ORT). It is suggested that in promoting the use of ORT by the Nigerian government and other collaborative international agencies, the socio-cultural context of the people should be taken into consideration in designing appropriate intervention strategies.
A simple implementation of Schelling's segregation model in NetLogo

We present an introduction to the NetLogo simulation environment using the Segregation Model presented by Nobel Prize Winner Thomas Schelling in 1978. While reviewing the model, its Netlogo implementation is described step by step, using visual tools accompanied by the code for programming in the Netlogo language. Two extensions to the original model are proposed and programmed. All the models are fully described in the text.
Self limiting postoperative hyperbilirubinemia after hepatectomy in a patient of Intrahepatic cholangiocarcinoma with Dubin- Johnson syndrome: A case report

Introduction: Dubin Johnson syndrome (DJS) is a benign disease of bilirubin metabolism, which causes only jaundice since birth, but there are no other symptoms or signs. DJS is so rare that its exact incidence in Indian population is not known. Incidence of intrahepatic cholangiocarcinoma (ICC) is around 3.3%. Occurrence of DJS simultaneous with hepatobiliary malignancies has been reported four times previously, predominantly in the Japanese population. There are no reports of such cases from Indian population. Also, in the reported cases the functional reserves of liver were complicated by presence of pre-existing cirrhosis of liver. There is no data suggesting the influence of concomitant DJS in a patient with liver cancers. Case Report: We present a case of 63-year-old (Indian) male who was diagnosed with DJS in early thirties and on routine health checkup was found to have space occupying lesion in liver. It turned out to be Intra hepatic cholangiocarcinoma on further workup. We state our experience in postoperative management, hyperbilirubinemia as well as further management of disease. Conclusion: Although it is not possible to predict the exact dynamics of DJS over ICC or vice versa, the outcomes of hepatectomy in such scenario are benign, self limiting and do not require any specific treatment.
A state-space modeling of nonideal DC-DC converters

A model based on practical switches with finite turn-on, turn-off, delay, storage, and reverse recovery times is proposed. The effects of switching on the state equation, system stability, DC gain and efficiency are shown for the boost, buck, and buck-boost converters. The effect of current-based switching-time variation on system stability effect, and the effect of average duty cycle variation on system stability is considered. DC gains of the boost and buck-boost converters are shown to be greatly degraded by switching loss. It is also shown that no additional resistance is generated by switching, in contradiction to previous work. It is found that the buck converter is superior to the others from the viewpoints of systems stability and DC gain, and the efficiencies of all the converters are maximized when the DC gain is close the unity. Previous results are improved and unified using state-space modeling. Analysis results are very simple in spite of the complex switching waveforms. This modeling approach is believed to be very useful for the high-frequency or high-power applications where switching effects become dominant. <<ETX>>
Evolving Real-Time Local Agent Control for Large-Scale MAS

Control for agents situated in multi-agent systems is a complex problem. This is particularly true in hard, open, dynamic environments where resource, privacy, bandwidth, and computational limitations impose restrictions on the type of information that agents may share and the control problem solving options available to agents. The or motivational quantities framework addresses these issues by evaluating candidate tasks based on the agent’s organizational context and by framing control as a local agent optimization problem that approximates the global problem through the use of state and preference.
Different Manifestations of Presenteeism at Workplace: A Study of Behavior of Employees in I.T. Sector in India

Workplace productivity is something that is always on the top of employers’ minds and they keep devising ways and means to combat it. While absenteeism has occupied a significant place in the minds of the researchers as a workplace nuisance, a parallel phenomenon called presenteeism has been highlighted in 2004 by Paul Hemp which is incurring huge costs and devouring organizational productivity.Presenteeism (Hemp, 2004) – the problem of workers being on the job but because of illness or other medical conditions not fully functioning – can cut individual productivity by one-third or more. He asserted that Presenteeism is more expensive a concern than absenteeism because it is easy to identify who is missing at workplace. But, it is very tough to state how an illness is hampering ones on the job performance. Presenteeism is identified as opposite of Absenteeism, but, it is becoming just as huge a problem and it is getting worse. The objective is to study non-work related presenteeism in India.
Choosing multiple parameters for SVM based on genetic algorithm

In recent years, research into SVMs has focused on two main areas. One is to improve the precision of the SVM algorithm, and another is to improve its speed. We propose a new method which can appropriately tune multiple parameters in the kernel functions of an SVM. It not only can improve the algorithm performance and make it approach to the real problem, but also can avoid those methods available which are too complex; the kernel must be differential and the result may be not optimal.
An Architecture for Spatial Audio Servers

Before spatial sound can be useful in large software systems, there must be a sufﬁcient application program-mer’s interface (API) for the control of the spatial audio system and for the management of ﬁnite audio processing resources. Researchers are using virtual environments as driving applications to determine the requirements of such an interface.
Prucalopride: selective enterokinetic as a new alternative in the treatment of chronic constipation

Chronic constipation is a common health problem that affects all ages, generates poor quality of life, and impacts negatively on the health systems of developed and developing countries. The definition of constipation is based on the objectivity of stool frequency as well as in the subjective symptoms associated with this disorder like straining, sensation of incomplete evacuation or hard stools. The treatment includes changes in lifestyle, aerobic exercise, increased intake of water and fiber, laxatives and the use of motility stimulants or prokinetics. A novel alternative is the enterokinetic prucalopride, a selective 5HT4 serotonin agonist, which increases the peristaltic reflex and triggers high amplitude muscle contractions of the colon promoting intestinal deposition. Prucalopride has proven efficacy and safety in adults including elderly patients with chronic constipation. (MED.UIS.2013;26(2):29-33).
Der hepatogene Diabetes bei Leberzirrhose

Hepatogenous Diabetes in Liver Cirrhosis. Background: Disturbances of glucose metabolism, eg glucose intolerance or hepatogenous diabetes, occur frequently in patients with liver cirrhosis. They are caused by loss of hepatocellular function and insulin resistance due to chronic liver disease. Discussion: Until now there are no recommendations or guidelines regarding diagnosis and treatment of hepatogenic diabetes. Basic treatment should guarantee sufficient daily energy and protein intakes since the majority of patients with liver cirrhosis are malnourished. The risk of hypoglycaemia must be carefully considered when treating hepatogenic diabetes. Suitable oral antidiabetics are glinides, DPP4-inhibitors, and GLP1 analogues. However, there are no data from clinical studies so far. If sufficient control of diabetes cannot be achieved by oral antidiabetics prandial insulin therapy using short-acting insulins or rapid-acting insulin analogues should be applied. Conclusion: Optimisation of metabolic control is not only important to avoid typical late diabetic but also cirrhosis-associated complications, eg, gastrointestinal bleeding, hepatic encephalopathy, or the occurrence of hepatocellular carcinoma. J Klin Endokrinol Stoffw 2013; 6 (3): 26–31.
Understanding and enlivening AQM workings using computer simualtion

[Abstract]: Undeniably, computer simulation is an effective tool to help understand and analyze complex processes and systems in various areas. In recent years, many educators adopt computer simulation technology in the teaching of some topics or courses which include dynamic interactions between components. For years, many concepts of networking have been taught based on textual or other static visual materials. And many researcher have shown that illustrating dynamic scenario using static and lecture-based paradigms compromises the teaching effectiveness. This problem on computer network education prompted us to use graphical simulation. Courses related to computer communication and networking can be benefitted if computer simulation is wisely adopted. In this paper, we describe a study in which we count on computer simulation to illustrate important and complicated algorithms of congestion control and queue management in the TCP/IP protocol suites. Comparing with current queue management techniques, Active Queue Management(AQM) is an innovative mechanism in router packet scheduling. We noticed that AQM is a promising technique and might be implemented in new generation routers. However, the concepts and internal workings of AQM schema are difficult for researchers and students to understand. Thus, we designed an interactive software to dynamically visualize the AQMs’principles and internal workings. The implementation of simulation package used Java technology due to that Java is an object-oriented programming language with extensive build-in graphical facilities and multi-threading mechanism. In our software package, we have implemented the traditional Drop Tail(DT) and two representative AQM schemas: Random Early Detection(RED) and BLUE. It allows users to conduct their own experiments by entering different parameters for each of the algorithms, as shown in the figure below. The structure of simulation package follows the Model-View-Controller paradigm which separates the development of network models from visualization and control of the models. The animation visually describes the internal working process of the algorithms with a plot diagram, which displays the variations of the router queue size. We also compared the simulation results of the three queue management algorithms. From the animating simulation, we can easily see the difference of performance between AQM and DT. The main strength of our AQM simulator is ease of use when compared with other professional simulation tools such as NS2 or OMNet++, because users do not need solid programming capability to build the simulation from scratch. By using graphical animation, learners can directly access the internal process of the three queue management algorithms. We have received very positive feedbacks from network professionals and University lecturers for using this simulation software.
Imaginary friends, stalking, and curating the Web: An ESL student's use of social media

Social media is a phenomenon that has only emerged in the last few years, but has quickly become one of the principal venues for communication between individuals. Because of recent technological developments in mobile technologies, individuals can now connect with their social network anywhere and anytime. Participation in networked online communities has been so pervasive that it has started to influence many of the ways in which individuals understand themselves and the world, communicate with each other, and engage in practices such as literacy and media consumption (Thorne & Black, 2008). One of the consequences of this qualitative shift is the development of cultures-ofuse that shape the ways in which learners participate in computer-mediated interaction and literacy consumption (Thorne, 2003) and that are often inconsistent with institutionally promoted practices. This mismatch could lead to a diminished effectiveness of traditional computer-mediated pedagogical practices; on the other hand, an increased awareness of existing computer-mediated practices could foster the development of pedagogies that are more effective for language learning. This study aims to describe the social media habits of an English as a Second Language (ESL) student enrolled in an American university by employing both quantitative and qualitative methods of data collection. Results show that this student used social networks to cultivate meaningful relationships, to project a true identity to the external world, and to learn about her host culture, and that these practices were carried out with an awareness of her purposes and of each tool’s culture-of-use (Thorne, 2003).
Toward using games to teach fundamental computer science concepts

Video and computer games have become an important area of study in the field of education. Games have been designed to teach mathematics, physics, raise social awareness, teach history and geography, and train soldiers in the military. Recent work has created computer games for teaching computer programming and understanding basic algorithms. We present an investigation where computer games are used to teach two fundamental computer science concepts: boolean expressions and recursion. The games are intended to teach the concepts and not how to implement them in a programming language. For this investigation, two computer games were created. One is designed to teach basic boolean expressions and operators and the other to teach fundamental concepts of recursion. We describe the design and implementation of both games. We evaluate the effectiveness of these games using before and after surveys. The surveys were designed to ascertain basic understanding, attitudes and beliefs regarding the concepts. The boolean game was evaluated with local high school students and students in a college level introductory computer science course. The recursion game was evaluated with students in a college level introductory computer science course. We present the analysis of the collected survey information for both games. This analysis shows a significant positive change in student attitude towards recursion and modest gains in student learning outcomes for both topics.
Pedagogical Content Knowledge of Mathematics Pre-service Teachers: Do they know their students?

The aim of this paper is to describe pre-service mathematics teachers’ knowledge about students. In this paper, knowledge about students refers to teachers’ knowledge of mathematical concepts that are difficult for students, common misconceptions that frequently experienced by students, possible sources of students’ errors, and methods to eliminate the difficulties and misconceptions. Twenty-four preservice mathematics teachers enrolled in micro-teaching course participated in the study. Interviews and written documents were employed to collect data. The data indicated that preservice teachers had problem in recognizing the source of students’ misconceptions and error. Pre-service teachers also found difficulty in finding effective ways to minimize those misconceptions and error. Interview data revealed that pre-service teachers frequently failed to recognize students’ misconception due to lack of conceptual knowledge of mathematics. Moreover, pre-service teachers had issues in generating effective teaching strategies as they had limited knowledge of teaching methods. The results suggest that mathematics pre-service teachers should have sufficient knowledge of both mathematics knowledge and pedagogic knowledge so that they can help their students in learning mathematics effectively.
Systemdienstleistungserbringung durch intelligente Gebäude

Within the ongoing transition of energy systems, new technologies are integrated into electrical distribution systems—e. g. distributed generation, electrical storage, electric vehicles and automated building energy management—which transform buildings into actively participating components inside the grid. This thesis analyses the influences of those intelligent buildings’ capabilities of optimizing their in-house energy flows on low-voltage grids and discusses the usability of those capabilities to provide system services. In order to minimize the limitations which arise for the economic acting on energy markets for the inhabitants of such buildings, the traffic light concept is shaped as an approach to provide necessary needed system services. Firstly, a technical traffic light is introduced to determine critical situations in the grid. Secondly, a topological traffic light identifies active components that can reasonably participate in the clearance of a critical situation. Thirdly, aspects of coordination by the traffic light are tackled by a closed-loop feedback mechanism that controls utility equipment and intelligent buildings by utilizing a two-staged mechanism for demand response. The three parts of the proposed traffic light approach are implemented in a Regional Energy Management System that utilizes a proposed Extended Generic Observer/Controller-Architecture. For a close-to-reality evaluation three reference grids for a rural, village, and suburban residential low voltage grid are derived from literature as well as three scenarios for the distribution of active components. In particular distributed generation, electrical storage and electric vehicles. The simulation of intelligent buildings, utility equipment, and the low voltage grid as well as the Regional Energy Management System are implemented in a Co-Simulation environment that extends the Organic Smart Home to a microgrid simulation. Furthermore, this simulation is extended towards a Software-in-a-Hardware-Loop-Environment comprising the Co-Simulation and the KIT Energy Smart Home Lab as a real intelligent building, to comply with the necessity of evaluating the Regional Energy Management System with real hardware. Here, a loose coupling of software and hardware components is established by using event-based communication schemes utilizing a message bus and an artificial mains is used to align the environmental conditions between simulation and real building. The capabilities of the Regional Energy Management System to stabilize low voltage systems, especially in future scenarios, are investigated in simulation studies and its operation is successfully demonstrated in the presented Software-in-a-Hardware-Loop-Environment during a six-day test phase in the real intelligent building.
EJB 3 in Action

Summary Building on the bestselling first edition, EJB 3 in Action, Second Edition tackles EJB 3.2 head-on, through numerous code samples, real-life scenarios, and illustrations. This book is a fast-paced tutorial for Java EE 6 business component development using EJB 3.2, JPA 2, and CDI. Besides covering the basics of EJB 3.2, this book includes in-depth EJB 3.2 internal implementation details, best practices, design patterns, and performance tuning tips. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Book The EJB 3 framework provides a standard way to capture business logic in manageable server-side modules, making it easier to write, maintain, and extend Java EE applications. EJB 3.2 provides more enhancements and intelligent defaults and integrates more fully with other Java technologies, such as CDI, to make development even easier. EJB 3 in Action, Second Edition is a fast-paced tutorial for Java EE business component developers using EJB 3.2, JPA, and CDI. It tackles EJB head-on through numerous code samples, real-life scenarios, and illustrations. Beyond the basics, this book includes internal implementation details, best practices, design patterns, performance tuning tips, and various means of access including Web Services, REST Services, and WebSockets. Readers need to know Java. No prior experience with EJB or Java EE is assumed. What's InsideFully revised for EJB 3.2 POJO persistence with JPA 2.1 Dependency injection and bean management with CDI 1.1 Interactive application with WebSocket 1.0About the Authors Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan are seasoned Java architects, developers, authors, and community leaders. Debu and Reza coauthored the first edition of EJB 3 in Action. Table of ContentsPART 1 OVERVIEW OF THE EJB LANDSCAPE What's what in EJB 3 A first taste of EJB PART 2 WORKING WITH EJB COMPONENTS Building business logic with session beans Messaging and developing MDBs EJB runtime context, dependency injection, and crosscutting logic Transactions and security Scheduling and timers Exposing EJBs as web services PART 3 USING EJB WITH JPA AND CDI JPA entities Managing entities JPQL Using CDI with EJB 3 PART 4 PUTTING EJB INTO ACTION Packaging EJB 3 applications Using WebSockets with EJB 3 Testing and EJB
Text messaging as a means to lowering barriers to help-seeking in students with depression

Whilst depression is one of the most common ailments to afflict adolescents and students, there is reluctance amongst sufferers to present for treatment. Student counseling services are widespread throughout the educational environment, however only 20% of sufferers seek help, leaving 80% to suffer unaided and in isolation. Certain barriers to help seeking have been identified in the research literature, and in this paper we examine how text messaging can be harnessed to encourage sufferers to overcome these barriers and seek help, by initiating dialogue and providing timely exhortations (via a student’s mobile phone) to avail of counseling services. To prevent students feeling targeted, these messages form part of a once-weekly stream of text messages from college to student, relating to finance, sports, exams etc.