Miracle-dz/UniFAR-FTUs huggingface dataset:
The Effect of the Amount of Single-Task Practice on the Performance of Discrete Task Combinations.

Abstract : This experiment examined the effect of the amount of single-task practice on the performance of two task combinations. Wickens' Multiple Resources Model was used to construct the combinations. According to this model, one of the combinations (the shared resources combination) was composed of two tasks requiring the same information processing resources. The other combination, (the separate resources combination) was composed of two tasks requiring different resources. Three groups of 12 subjects performed each combination. Groups 1, 2, and 3 performed the shared resources combination; Groups 4, 5, and 6 performed the separate resources combination. Pretest data were used to determine the number of trials required to approach data were used to determine the number of trials required to approach asymptotic performance on each of the four tasks used in the two combinations. Groups 3 and 6 received enough trials on their tasks to approach asymptotic performance. Group 2 received half the practice of Group 3 on each task; Group 5 received half the practice of group 6. Groups 1 and 4 received one trial on each task. Analyses of the dual-task data appeared to indicate that the amount of single-task practice had little effect on either combination. However, an examination of the single-task data revealed that Groups 2 and 3 performed similarly on both their tasks. Group 5 and 6 performed similarly on one of their tasks. The single-task practice manipulation was, therefore, unsuccessful since it had little effect on single-task performance.
INVESTIGATION OF MALWARE DEFENCE AND DETECTION TECHNIQUES

Malwares are considered as a major threat vector which can be potentially caused huge damage to both network infrastructure as well as network applications. In this paper, different techniques such as repacking, reverse engineering and hex editing for bypassing host-based Anti Virus (AV) signatures are illustrated, and the description and comparison of different channels and methods when malware might reach the host from outside the networks are demonstrated. After that, bypassing HTTP/SSL and SMTP malware defences as channels are discussed. Finally, a new malware detection technique base on honeynet systems is discussed and its strengths and weaknesses were highlighted. best way for detection prevention by defences, we survey a detection system base on honeynet for organization to detect unknown malware before the malware reaches to their private networks. II. REVIEW OF RELATED WORKS Many companies’ employees use unknown sources in Internet and they download executable files, which might be malicious files. The reason of preventing these activities by security administrators in companies is given and it is shown that how new malware or an existing malware, which is changed, might be pass by AV engines [4]. The ability of AVs in detection of some malware is indicated and it is tested to determine how often the malware are recognized by standard AVs. All the malware, which are mentioned in this part, have been scanned in VirusTotal [4]. It is a free service from Hispasec Sistemas and VirusTotal site scans all uploaded files by using 41 AVs base on signature detection method and each AV has updated with the newest malware signature [4]. The result of detection is different between stored and executed malware, which respectively shows malicious behavior and signature; therefore, it is not always deduced from only stored files [5]. The example is a malware with a known signature, which has changed its codes. But when a malware runs, the malicious signature may re-emerge base on packet’s nature [5]. There are two different situations that malware can be detected or bypassed. First, bypassing host-based AVs and second Bypassing from AV gateways [5], which are protecting a network. different ways that a malware might bypass host-based defenders is given below:
Digital coding of high quality audio

Based on frequency-domain techniques, coding of high-quality audio with bit rates down to 64 kbit/s is possible. This performance is achieved using perceptual coding. Transform coding can be used to get the best performance at very low bit rates. Real-time implementations of several types of low bit rate codecs have been developed. Standardization of low bit rate audio coding systems is under way in ISO/IEC JTC1/SC2/WG11 (MPEG/Audio). <<ETX>>
Research on supply chain management in mass customization

Traditional supply chain management utilized traditional media and channels to link firms in linear, inefficient relationships. In the industrial era, most manufacturing companies were vertically integrated, owning their own sources of supply and channels of distribution. The new idea of manufacturing that is mass customization and the current technological revolution are creating new opportunities for further improvements in supply chain management. The paper discusses disadvantages of traditional supply chain management and analyzes the changes coming in the current supply chain management.
Implementation of an LDPC decoder for the DVB-S2, -T2 and -C2 standards

e to the Shannon limit. The performance associated with relatively easy implementation makes this solution very attractive to the digital communicationsystems. ThisisthecasefortheDigitalvideobroadcastingbysatellite in the DVB-S2 standard that was the ﬁrst standard including an LDPC. This thesis subject is about the optimization of the implementation of an LDPC decoder forthe DVB-S2, -T2 and -C2 standards. After a state-of-theart overview, the layered decoder is chosen as the basis architecture for the decoder implementation. We had to deal with the memory conﬂicts due to the matrix structure speciﬁc to the DVB-S2, -T2, -C2 standards. Two new contributions have been studied to solve the problem. The ﬁrst is based on theconstructionofanequivalentmatrixandtheotherreliesontherepetition of layers. The conﬂicts inherent to the pipelined architecture are solved by an eﬃcient scheduling found with the help of graph theories. Memory size is a major point in term of area and consumption, therefore the reduction to a minimum of this memory is studied. A well deﬁned saturation and an optimum partitioning of memory bank lead to a signiﬁcant reduction compared to the state-of-the-art. Moreover, the use of single port RAM instead of dual port RAM is studied to reduce memory cost. In the last chapter we answer to the need of a decoder able to decode in parallelx streams with a reduced cost compared to the use ofx decoders.
Cybernetic transport systems: lessons to be learned from user needs analysis and field experience

CyberCars is a European project in the Information Society Technologies Programme of the Fifth Framework. The Project's main goal is to accelerate the development and implementation of novel urban transportation systems, based on automated vehicles for movement of people and goods. These systems aim at improving mobility, while reducing negative effects of the private car use in cities (congestion, pollution.), by complementing today's mass transit systems and hence offering a real alternative with better convenience and efficiency than the private car in the cities. This paper investigates: the user needs of cybercars; valuable field experience in the area of human-machine interface (HMI) and the legal hurdles encountered in first implementations of "cybercars" in Switzerland.
OFDM over indoor wireless optical channel

In this paper, the application of orthogonal frequency division multiplexing (OFDM) over an indoor wireless optical channel is investigated. Previous studies have demonstrated that it can be characterised as almost stationary but with a severe penalty induced by multipath propagation. It is also highly dependent on the spatial distribution of emitters and receivers. OFDM systems have been chosen owing to their capability of supporting high data rates without channel equalisation. They also mitigate the effect of quality fluctuations of the channel induced when the spatial distribution of emitters and receivers varies. We present several results about system performance. Finally, an adaptive OFDM system is proposed to increase data throughput. The obtained results show that a significant throughput is attained over noisy wireless optical channels.
User centered design for intelligent service robots

This paper describes the development of a fetch-and-carry robot to assist physically impaired people in an office environment. Different methods involving users are employed in the project, including the task analysis, Hi-Fi simulation trials and focus group sessions. Through an iterative design process, a prototype robot system has been developed, with an enhanced robot platform including a graphical user interface and natural language interface. The users' need for continuous feedback from the robot has led to the development of an animated character (CERO), which relates the two interface components and indicates the robot's current state by using simple gestures.
Learning and cooperating in information gathering

With the explosive increase of available resources, the Internet has become the main platform for information promulgating and communicating. There are many complicated characteristics of the Internet, so that the effectiveness and efficiency of current information retrieval systems is not satisfying. Internet information retrieval is one of the most active areas of computer science. Software agents have been investigated widely in recent years and agent technology has been applied in some intelligent systems. We introduce a distributed cooperative information retrieval multi-agent system, ICMAS. The system learns to understand user's information demand accurately through interactions with the user. The learning agent can improve the system's ability by acquiring new knowledge and sharing knowledge with other individuals.
Identification and reconfigurable control of multivariable aircraft

This paper presents the conceptual development of advanced flight control systems (flight management systems), where the objective is to attain real-time identification, design, and controller reconfiguration. The identification and control methods developed use a complete nonlinear aircraft model derived from the Lagrange equations of motion. The generalized performance functional is employed. Using the Hamilton-Jacobi theory, bounded controllers are designed applying the first- and second-order necessary criteria for optimality. The sufficient conditions are studied to analyze stability of the closed-loop systems with bounded control. In particular, the admissibility concept, which is based on the Lyapunov stability theory, is used. It is shown that innovative procedures guarantee real-time identification, constrained optimization, and controller reconfiguration. The concept reported can be applied to advanced highly maneuverable aircraft, as well as to agile missiles and interceptors.
Variable structure adaptive cascade control of rigid-link electrically-driven robot manipulators

This paper addresses the design of adaptive tracking control of rigid-link electrically-driven robot manipulators, in the case of arbitrary uncertain mechanical and electrical parameters of the robot model. A strategy based on cascade central is presented combining an adaptive scheme for rigid-link robot control with a variable-structure control law for actuator control. Global asymptotic stability is ensured and the very satisfactory performance achieved is illustrated by a simulation example. <<ETX>>
Channel equalization for wireless OFDM systems with ICI and ISI

In an OFDM system for wireless communications, a guard interval longer than the channel delay is used to avoid interchannel interference (ICI) and intersymbol interference (ISI), so the multiplexed subchannels can be decoupled by the discrete Fourier transform (DFT). However, this ICI- and ISI-free OFDM system reduces the efficiency of bandwidth usage and prevents the use of sufficient statistics in channel equalization. We consider an OFDM system that achieves one hundred percent efficiency of bandwidth usage and uses sufficient statistic. A one-tap decision feedback equalizer (DFE) is proposed. It is demonstrated that though occupying a narrower bandwidth, the one-tap DFE based, ICI and ISI OFDM system achieves a lower symbol error rate and higher mutual information between the input of the decision device and transmitted symbols.
Impact of Popularity Indications on Readers' Selective Exposure to Online News

Selecting news online may differ from traditional news choices, as most formal importance indicators in traditional media do not convert directly to online news. However, online portals feature news recommendations based on collaborative filtering. To investigate how recommendations affect information choices, 93 participants browsed online news that featured explicit (average rating) or implicit (times viewed) recommendations or no recommendations (control group) while news exposure was logged. Participants picked more articles if the portal featured explicit recommendations, and stronger explicit recommendations instigated longer exposure to associated articles. Implicit recommendations produced a curvilinear effect with longer exposure for low and high numbers.
Prototipo e-commerce B2C soportado en cloud computing

This paper describes an e-commerce software prototype based on the services delivery model, Software as a Service -SAAS, provided by Cloud Computing. The prototype corresponds to the first version of a tool aimed at improving the competitive strength of SMEs, allowing: (a) transcend barriers of time and space and (b) compete against imports of foreign companies. The architecture of the tool is based on the pattern Model/View/Controller-MVC. The methodology used was SCRUM. The prototype supports features such as multi-store and product customization, features that have been little explored by applications and e-commerce platforms currently available.
Yaratıcı Dramanın Öfke Denetimi Becerilerine Etkisi

Arastirmanin amaci, yaratici dramanin ortaogretim 9. Sinif ogrencilerinin ofke denetimi becerilerini gelistirme uzerindeki etkileri, bu etkilerin cinsiyet ile iliskilerini incelemektir. Arastirmada on-test,son-test kontrol gruplu deney deseni kullanilmistir. Istanbul-Besiktas’da yer alan resmi bir ortaogretim okulunda okumakta olan 9. Sinif ogrencileri calismada yer almistir. Deney ve kontrol grubunda 15 ogrenci yer almistir. Arastirmanin verileri, “Surekli Ofke ve Ofke Ifade Tarzi Olcegi” ile toplanmistir. Deney grubuna haftada 1 defa (90 dakika) 12 hafta sure ile “Ofke Denetimi Egitimi Yaratici Drama Calismasi” uygulanmistir. Kontrol grubuna rehberlik ve yonlendirme dersi programi uygulanmistir. Arastirma sonunda yapilan yaratici drama uygulamasinin ogrencilerin ofke duzeyi uzerinde onemli duzeyde ve olumlu yonde etkili oldugu bulunmustur. Bununla birlikte yaratici dramanin ve ortaogretim rehberlik ve yonlendirme dersi programinin Ofke Denetimi Becerilerini Gelistirme uzerindeki etkilerinin cinsiyete gore onemli farkliliklar gostermedigi ortaya cikmistir.
Impact du placement des threads de progression pour les collectives non-bloquantes

Les collectives MPI non-bloquantes permettent de recouvrir les communications par du cal- cul. Un bon taux de recouvrement est obtenu en effectuant les tâches de communication et des tâches de calcul en parallele. Pour realiser cela, certaines implementations utilisent des threads de progression pour gerer les tâches de communication. Ces threads sont en concurrence avec les autres threads de l’application. Dans cet article, nous proposons un placement de ces diffe- rents threads en tenant compte de la topologie NUMA de la machine afin d’ameliorer le taux recouvrement des communications collectives non-bloquantes.
Middleware service architecture over cellular network for mobile medical applications

Mobile computing is the next technology frontier for health care providers. Data capture and retrieval using mobile computers eliminate inefficiencies and time delays in the patient management process. Our goal here is to develop a software tool for wireless patient data entry by the ambulance crew into EMS/;hospital servers. The tool also retrieves vital patient information such as the patient history and early treatments from the EMS/;Hospital server to assist the patient care process. The proposed architecture facilitates automating tasks by small mobile agents with user convenient interfaces and connections. A special feature in this tool is the inclusion of voice data capture. The required functions are implemented in the middleware of the EMS application. The proposed architecture is developed such that interfaces and agents can be just plugged in and out of the middleware (scalable), to suit the application.
Backup group multiplexing: an integrated restoration strategy for IP over WDM optical networks

This paper proposes a novel restoration strategy, called Backup Group Multiplexing, for fast restoration in IP over optical networks. It groups optical nodes by connecting them using switched multi-fiber 10-Gigabit Ethernet rings. It uses MPLS as the base technology to implement an integrated two-layer path-restoration scheme. It solves the problem of "failure propagation" by coordinating the backup path selection. It also takes the advantage of the label stacking capability of MPLS to groom IP flows to minimize the number of backup lightpaths. MPLS signaling protocols are applied across the IP layer and the optical layer in a coordinated manner. Our integrated scheme overcomes the shortcomings of uncoordinated protocols such as fail-over racing and double booking of backup bandwidth. The proposed solution is bandwidth efficient and cost effective.
Natural Language Processing in PROLOG: An Introduction to Computational Linguistics

Any books that you read, no matter how you got the sentences that have been read from the books, surely they will give you goodness. But, we will show you one of recommendation of the book that you need to read. This natural language processing in prolog an introduction to computational linguistics is what we surely mean. We will show you the reasonable reasons why you need to read this book. This book is a kind of precious book written by an experienced author.
Fast-settling CMOS two-stage operational transconductance amplifiers and their systematic design

Compared to single-stage OTAs, two-stage OTAs have higher gain and output swing, but more poles and zeros and thus have more complex settling behavior. Two structures of two-stage OTAs that have good settling performance are introduced. By analyzing the settling behavior of the third order system, a set of poles and zeros parameters are extracted. A design procedure for minimum settling time of these two OTAs is described. Finally two design examples for minimum settling time are presented. These high-speed OTAs are suitable for high-speed switched-capacitor applications.
Psychophysical evaluation of the effect of JPEG, full-frame discrete cosine transform (DCT) and wavelet image compression on signal detection in medical image noise

Image quality associated with image compression has been either arbitrarily evaluated through visual inspection, loosely defined in terms of some subjective criteria such as image sharpness or blockiness, or measured by arbitrary measures such as the mean square error between the uncompressed and compressed image. The present paper psychophysically evaluated the effect of three different compression algorithms (JPEG, full-frame, and wavelet) on human visual detection of computer-simulated low-contrast lesions embedded in real medical image noise from patient coronary angiogram. Performance identifying the signal present location as measure by d' index of detectability decreased for all three algorithms by approximately 30% and 62% for the 16:1 and 30:1 compression rations respectively. We evaluated the ability of two previously proposed measures of image quality, mean square error (MSE) and normalized nearest neighbor difference (NNND), to determine the best compression algorithm. The MSE predicted significantly higher image quality for the JPEG algorithm in the 16:1 compression ratio and for both JPEG and full-frame for the 30:1 compression ratio. The NNND predicted significantly high image quality for the full-frame algorithm for both compassion rations. These findings suggest that these two measures of image quality may lead to erroneous conclusions in evaluations and/or optimizations if image compression algorithms.
Evaluation perceptive des apports de la reproduction sonore par WFS pour une situation de concert

Nous presentons dans cet article deux tests d'ecoute evaluant la reproduction de scenes sonores en Wave Field Synthesis (WFS). Si la majorite des etudes spatiales s'interessent a la localisation, nous nous attachons ici a evaluer d'autres caracteristiques de la reproduction sonore. Nous nous interessons a deux situations frequemment rencontrees: la synthese de scenes sonores complexes et la confrontation sur scene entre sources virtuelles et sources reelles. La premiere experience s'attache a la discrimination de sources concurrentes faiblement espacees et prend la forme d'un test AB. Une scene constituee de trois locuteurs espaces de 8° dans le plan horizontal est spatialisee par un systeme WFS ou un systeme stereo. Entre la scene A et la scene B, les positions de deux des trois sources sont eventuellement interchangees. La tâche des participants est d'indiquer s'ils ont percu un changement d'organisation spatiale entre les scenes A et B. Les resultats confirment la meilleure discrimination des sources dans le cadre de la WFS. La deuxieme experience s'attache au realisme de la reproduction d'une voix parlee par un systeme de diffusion WFS. Le protocole consiste a alterner de maniere aleatoire la declamation de fragments d'un texte par un acteur et la diffusion de fragments de ce meme texte prealablement enregistres par le meme acteur. La tâche des participants est d'indiquer au cours de la lecture quelles sont les parties declamees par l'acteur ou diffusees par le systeme de reproduction. Dans ce test, nous portons une attention particuliere a la directivite des sources virtuelles en WFS comme facteur susceptible d'influer sur le realisme. Nous comparons notamment les merites d'une diffusion avec une directivite fixe, variable aleatoirement ou asservie aux caracteristiques du signal. Les resultats de ces deux tests sont discutes du point de vue de l'utilisation de la WFS en concert de sorte a de caracteriser les apports specifiques de ce systeme.
Revisión crítica de las fuentes de variabilidad en la medición de la prevalencia de esquizofrenia

SUMMARY Epidemiologic research plays a very relevant role to know the prevalence of schizophrenia. However, sometimes data from different studies are compared without taking into account some methodological questions that influence the results. This paper reviews different methodological factors that influence variability of rates in schizophrenia prevalence. Also, we provide some generic recommendations for measuring prevalence. We have revised 52 studies which offer prevalence rates of schizophrenia. A big difference appears in the prevalence rates of schizophrenia which range between 1 to 45 per 1000 inhabitants. The factors founded can be summarized as follows: 1. type of prevalence; 2. denominator population; 3. place of selection of cases; 4. classification issue; 5. diagnoses categories and 6. methods of diagnoses. In conclusion, in the epidemiological studies about schizophrenia prevalence we have to take into account the methodological factors involved in order to interprete and compare results from different studies.