Miracle-dz/UniFAR-FTUs huggingface dataset:
Wireless Network Formation and Maintaining for Mobile Devices Based on Self-Organization Strategies

This paper deals with creation and maintenance of mobile devices networks. A multi-agent approach based on self-organization strategy is proposed for building a virtual backbone, segmentation detection, and network recovery. In this approach each mobile device is controlled by a multi-role agent, which performs these tasks efficiently by using local interactions; role management allows backbone reconfiguration when the nodes leave or arrive to the network yielding a complex global emergent behavior. Energy saving is achieved by adapting the time interval and power of transmission after the network formation. Simulations show the algorithm performance regarding energy saving and segmentation recovery.
Towards virtual clay

Providing the user with an intuitive sculpting system similar to real clay is one of the most challenging goals of interactive shape modeling. A user should ideally be able to deform, add and remove material freely in real time, without any geometric or topological constrains on the modeled shape.This chapter reviews and compares three techniques that bring virtual shape modeling closer to this objective. The two first ones rely on a specific representation of the sculpted shape, namely the iso-surface of a scalar field stored in a grid. Because this representation conveniently captures topological changes, adding and removing material is straightforward. Based on this representation, we compare a geometric versus a physically-based method for handling local and global shape deformations that make the model closer to virtual clay. We also discuss solutions for providing users with an intuitive interface with haptic feedback. A third and very different approach is to define the deformations of the sculpted model as spatial deformations, such that the operation is applicable to a wide range of shape representations. We show that the extension of sweepers (presented in the space deformation chapter of this tutorial) to constant volume "swirling-sweepers" produces an intuitive clay-like behavior of the modeled shape. This technique provides a very good alternative to physically-based virtual clay when preserving the shape's topology is desirable.
Interactional Justice Moderated the Effect of Protestant Work Ethic on Social Loafing

This study examined the relationship between Protestant work ethic and social loafing and whether interactional justice was a moderator of this linkage. Responses to the survey were analyzed using a sample of 406 from Shanxi province in China. The factor analysis indicated six dimensions of PWE, that is, admiration of work itself, success comes from hard work, work as an end, asceticism, ant-leisure, and internal control. Results showed that the dimensions of â€œAdmiration of work itselfâ€ and â€œAnt-leisureâ€ related significantly to social loading and interactional justice played a moderating role in the relationship between PWE and social loafing. The limitations and directions for future research are offered finally.
Hough transform based masking in feature extraction for noisy speech recognition

Despite various advances in recent years, robustness in the presence of various types and levels of environmental noise remains a critical issue for automatic speech recognition systems. This paper describes a novel and noise robust front-end that incorporates the use of Hough transform for simultaneous frequency and temporal masking, together with cumulative distribution mapping of cepstral coefficients, for noisy speech recognition. Recognition experiments on the Aurora II connected digits database have revealed that the proposed front-end achieves an average digit recognition accuracy of 83.31% for all the three Aurora test sets. Compared with the recognition results obtained by using the ETSI standard Mel-cepstral front-end, this accuracy represents a relative error rate reduction of around 57%.
GABAA receptor α5 subunits contribute to GABAA,slow synaptic inhibition in mouse hippocampus Running title GABAA receptor α5 subunits and slow synaptic inhibition Authors and author addresses

GABAA receptor α5 subunits, which are heavily expressed in the hippocampus, are potential drug targets for improving cognitive function. They are found at synaptic and extrasynaptic sites and have been shown to mediate tonic inhibition in pyramidal neurons. We tested the hypothesis that α5 subunits also contribute to synaptic inhibition by measuring the effect of diazepam (DZ) on spontaneous and stimulus-evoked inhibitory postsynaptic currents (IPSCs) in genetically modified mice carrying a point mutation in the α5 subunit (α5-H105R) that renders those receptors insensitive to benzodiazepines. In wild type mice, DZ (1 μM) increased the amplitude of spontaneous IPSCs (sIPSCs) and stimulus-evoked GABAA,slow IPSCs (eIPSCs) and prolonged the decay of GABAA,fast sIPSCs. In α5-mutant mice, DZ increased the amplitude of a small-amplitude subset of sIPSCs (<50 pA) and eIPSCs (<300 pA) and prolonged the decay of GABAA,fast sIPSCs, but failed to increase the amplitude of larger sIPSCs and eIPSCs. These results indicate that α5 subunits contribute to a largeamplitude subset of GABAA,slow synapses, and implicate these synapses in modulation of cognitive function by drugs that target α5 subunits.
TCP with Bulk Repeat – Implementation and Analysis

The TCP protocol was designed for wired networks and suffers from performance degradation in error-prone wireless environments (i.e., IEEE 802.11 LANs or high latency satellite links). The most widespread TCP variant – NewReno – needs one RTT to retransmit each lost packet, which can be very time consuming in high latency links. TCP with Bulk Repeat tries to solve these shortcomings by introducing three new schemes: Bulk Retransmission, Fixed Retransmit Timeout and Intelligent Window Adjustment. We implemented the Bulk Repeat protocol in FreeBSDv5.1 and tested it in a real testbed. We used DummyNet to emulate wireless networks with high error rates, high delay and high bandwidth (fat leaky pipes). Our results confirm the previous simulation results and show that Bulk Repeat can improve TCP performance by up to an order of magnitude in high error rate scenarios.
Evaluation of supersingular integrals: second‐order boundary derivatives

The boundary integral representation of second‐order derivatives of the primary function involves second‐order (hypersingular) and third‐order (supersingular) derivatives of the Green's function. By defining these highly singular integrals as a difference of boundary limits, interior minus exterior, the limiting values are shown to exist. With a Galerkin formulation, coincident and edge‐adjacent supersingular integrals are separately divergent, but the sum is finite, while the individual hypersingular integrals are finite. Moreover, the cancellation of the supersingular divergent terms only requires a continuous interpolation of the surface potential, and there is no continuity requirement on the surface flux. The algorithm is efficient, the non‐singular integrals vanish and the singular integrals are computed entirely analytically, and accurate values are obtained for smooth surfaces. However, it is shown that a (continuous) linear interpolation is not appropriate for evaluation at boundary corners. Published in 2006 by John Wiley & Sons, Ltd.
A comparison of taxonomy generation techniques using bibliometric methods : applied to research strategy formulation

This paper investigates the modeling of research landscapes through the automatic generation of hierarchical structures (taxonomies) comprised of terms related to a given research field. Several different taxonomy generation algorithms are discussed and analyzed within this paper, each based on the analysis of a data set of bibliometric information obtained from a credible online publication database. Taxonomy generation algorithms considered include the Dijsktra-Jarnik-Prim‟s (DJP) algorithm, Kruskal‟s algorithm, Edmond‟s algorithm, Heymann algorithm, and the Genetic algorithm. Evaluative experiments are run that attempt to determine which taxonomy generation algorithm would most likely output a taxonomy that is a valid representation of the underlying research landscape. Thesis Co-Supervisor: Stuart Madnick Title: John Norris Maguire Professor of Information Technologies and Professor of Engineering Systems, Massachusetts Institute of Technology Thesis Co-Supervisor: Wei Lee Woon Title: Assistant Professor, Masdar Institute of Science and Technology
News Media Channels: Complements or Substitutes? Evidence from Mobile Phone Usage

The media industry has undergone a fundamental shift over the past decade as new online distribution channels have proliferated in an unprecedented manner. Although mobile devices have experienced rapid adoption among consumers, their effect on consumer behavior and their subsequent implications for publishers and advertisers have yet to be understood. The authors examine consumers’ news consumption behavior on mobile news websites in response to the introduction of a mobile news app. Pseudo-panel analysis based on repeated cross-sectional data suggests that the introduction of a mobile app by a major national media company leads to a significant increase in demand at the corresponding mobile news website. In addition, the authors report that this effect is greater for consumers with (1) greater appreciation for concentrated news content, (2) stronger propensity for a particular political viewpoint, and (3) fewer time constraints. The results are consistent with the interpretation that the adoption of a provider's news app stimulates corresponding mobile news website visits. The authors discuss the implications of these findings for advertisers, media publishers, and policy makers.
Silicon CMOS/SiGe transceiver circuits for THz applications

The push towards terahertz frequencies presents both challenges and opportunities for emerging applications and circuit. In this paper, recent attempts to operate SiGe and CMOS technologies beyond their transistor cut-off frequencies will be presented. Among others, the circuit designs include monolithically integrated THz CMOS focal-plane arrays and 820 GHz sub-harmonically pumped SiGe HBT imaging chip-sets including integrated antennas.
# 2009-059 Technology frontier , labor productivity and economic growth : Evidence from OECD countries

We use 29 OECD countries data spanning over 1960-2000 to study the growth strategy when countries are close to the technology frontier. Relying on a semi-parametric generalized additive model, we estimate labor productivity equations. We find that the number of agents enrolled in higher education is a determinant of growth. Moreover, when a country is sufficiently near the technology frontier thanks to an increasing R&D expenditure, it becomes optimal to invest in fundamental research, since after a short period of efficiency, business R&D can no longer ensure the transition toward the technology frontier, while higher education presents the opposite shape. These findings support the main assertion of Aghion and Cohen (2004) that countries which are near the technology frontier have to invest in higher education while those far away from the frontier make their technology level growing up by investing in primary and secondary schooling. JEL Classification: I23, J24, O40
[Confirmatory factor analysis of schizotypal personality traits in university students].

OBJECTIVE Investigating the factor structure of schizotypal traits in normal population is important to describe the clinical phenotypes associated with susceptibility to schizophrenia. Schizotypal Personality Questionnaire (SPQ) is a commonly used self-rated measure to assess schizotypal traits. While Raine's three-factorial model is most commonly supported model explaining factor structure of schizotypal traits, there is also evidence supporting alternative models. The aim of this study is compare the goodness-of-fitness of various models about factor structure of the SPQ in a substantial number of university students. METHOD 1059 university students were participated in the study. Alternative models regarding factor structure of the SPQ were compared with confirmatory factor analysis (CFA). The effect of gender on the factor structure of schizotypal traits is also studied. RESULTS The 4 factorial model that included cognitive-perceptual, paranoid, interpersonal and disorganized dimensions fit the data the best. Raine's three factorial model did not fit the data adequately. However, after minor modifications, Raine's model also had a satisfactory goodness-of-fit. Gender had no effect on the factor structure of the SPQ. CONCLUSION Results of these study supported 4-factorial model of Stefanis and modified version of Raine's model to explain factor structure of schizotypal traits. The structure of schizotypal traits is in parallel with structure of symptom dimensions in schizophrenia. This outcome is compatible with the views seeing schizotypal traits in general population in continuum with schizophrenia spectrum disorders.
Open Innovation Interview-Studie 2012

Ein in den letzten Jahren in Forschung und Praxis zunehmend an Bedeutung gewinnender Ansatz im Bereich des Innovationsmanagements stellt die Open Innovation dar. Ziel der explorativen Interview-Studie war eine Bestandsaufnahme der Verbreitung von Open Innovation in der industriellen Anwen-dung, von Anwendungserfahrungen und Verbesserungspotentialen sowie die Identifikation erfolgrei-cher, bislang weniger bekannter Open Innovation Methoden. Zur Ermittlung moglicher Potentiale, Herausforderungen und Hemmnisse, die bei der Einfuhrung von Open Innovation in Unternehmen auftreten konnen, wurden Unternehmen befragt, die in der Vergangenheit bereits Open Innovation Methoden implementierten und Erfahrungen sammeln konnten. Zur Erfassung alternativer Innovations-Konzepte sowie moglicher Bedenken gegenuber einer Einfuhrung von Open Innovation wurden ebenfalls Unternehmen ohne Open Innovation Vorerfahrung in die Befragung miteinbezogen. Ein wei-terer Untersuchungsaspekt war die Ermittlung erfolgreicher Open Innovation Methoden.
A Distributed Data Allocation Algorithm for Biological Databases

Storage and processing of large data sets on distributed platforms allows parallel query execution and is capable of improving scalability. However, defining a distributed allocation schema is a complex task that has been based mostly on ad-hoc, trial-and-error strategies. This paper describes an algorithm for creating a distributed allocation schema aimed at improving query performance. The algorithm is based on data patterns and query history analysis and can be applied to any existing centralized database. The proposed algorithm was evaluated using a large biological database as case study, achieving very promising results.
A fast solver for a class of linear systems

The solution of linear systems is a problem of fundamental theoretical importance but also one with a myriad of applications in numerical mathematics, engineering, and science. Linear systems that are generated by real-world applications frequently fall into special classes. Recent research led to a fast algorithm for solving symmetric diagonally dominant (SDD) linear systems. We give an overview of this solver and survey the underlying notions and tools from algebra, probability, and graph algorithms. We also discuss some of the many and diverse applications of SDD solvers.
Parallel numerical simulation of wave propagation in 3D elastic medium with application of the Laguerre transform

In this paper, we apply an approach for numerical simulation of elastic waves in heterogeneous medium, based on the implementation of integral Laguerre transform with subsequent domain decomposition. Following the Laguerre transform, we obtain a system with strictly negative definite elliptic operator, which doesn't depend on separation parameter. Therefore, parallel calculations can be organized by means of the additive Schwarz method and systems of linear algebraic equations in each subdomain can be solved by means of LU factorization. In the paper we study this approach in 3D case.
The Baxter Easyhand: A robot hand that costs $150 US in parts

This paper introduces and characterizes the Baxter Easyhand, a new 3D printed hand derived from the Yale T42 hand [5], [10], but designed specifically to be mounted on the Baxter robot from Rethink robotics. Because this hand is designed specifically for Baxter, we are able to make some important simplifications in the design relative to other 3D printed hands. In particular, the Easyhand is smaller than most other 3D printed hands and it is powered by the native Baxter gripper actuator. As a result, our hand is cheaper, lighter, and easier to interface with than other robot hands available for Baxter. This paper details the design of the hand and its mechanical characteristics and reports results from experiments that characterize its grasping performance.
Sub-mW reconfigurable interface IC for electrochemical sensing

The IronIC project has the aim of developing a fully implantable and remotely powered platform for the real-time monitoring of human metabolites. In this paper we present a mixed-signal interface IC for the electrochemical sensing data acquisition chain. The IC controls and reads out up to five biomolecular sensors, by receiving commands from a standard interface to conduct chronoamperometry (CA) and cyclic voltammetry (CV). Different voltage profiles are generated by using a single fully on-chip reconfigurable waveform generator, while the measured data are digitized. The IC is realized in 0.18 μm CMOS technology. Electrical measurements show that the linear readout current range is ±1650 nA with 8-bit resolution. The cyclic voltammetry of potassium ferricyanide and the chronoamperometry of hydrogen peroxide have been successfully performed with the interface. The IC consumes 0.92 mW from 1.8 V supply voltage, making it suitable for remotely powered and implantable applications.
Acronym classification using feature combinations

This paper presents a supervised machine learning approach to the acronym-definition recognition problem. A task which is both difficult and crucial for many NaturalLanguage Processing (NLP) applications. The emphasis is on the choice of particular information sources for the training experience and their effect on the learning system. We conducted an experiment which combines two machine learning approaches to classify acronym-definition pairs.
Occlusion detection and filling in disparity map for multiple view synthesis

In synthesizing intermediate views from two stereo images with the help of stereo matching, we suggest an efficient method for removing occlusion. The proposed method can deal with the problems: noise correction from stereo matching using photometric method, occlusion removal for high fidelity rendering using disparity consistency, and parallel computing for real-time synthesis. The proposed algorithm is compared with the state-of-the-art algorithms to show the better performance in rendering and computational speed.
Name Strategy: Its Existence and Implications

It is argued that colour name strategy, object name strategy, and chunking strategy in memory are all aspects of the same general phenomena, called stereotyping, and this in turn is an example of a know-how representation. Such representations are argued to have their origin in a principle called the minimum duplication of resources. For most the subsequent discussions existence of colour name strategy suces. It is pointed out that the Berlin-Kay universal partial ordering of colours and the frequency of trac accidents classified by colour are surprisingly similar; a detailed analysis is not carried out as the specific colours recorded are not identical. Some consequences of the existence of a name strategy for the philosophy of language and mathematics are discussed: specifically it is argued that in accounts of truth and meaning it is necessary throughout to use real numbers as opposed to bivalent quantities; and also that the concomitant label associated with sentences should not be of unconditional truth, but rather several real valued quantities associated with visual communication. The implication of real valued truth quantities is that the Continuum Hypothesis of pure mathematics is side-stepped, because real valued quantities occur ab initio. The existence of name strategy shows that thought/sememes and talk/phonemes can be separate, and this vindicates the assumption of thought occurring before talk used in psycholinguistic speech production models.
Improvised geographic scheme for greedy perimeter stateless routing

Geographic Perimeter Stateless Routing (GPSR) use local information to forward packets greedily. Nodes need to keep only this information, hence called as stateless. When not possible the algorithm and Greedy forwarding recovers to this scenario by switching to face routing, which is further based on the right-hand rule in the planarized node graph, in order to route around the void. The Gabriel Graph(GG) and the Relative Neighbourhood Graph (RNG) are the two graphs used for the planarization, but results in graph partitioning. In this work, we propose an improvised RNG-GG algorithm which makes sure to avoid the partitioning of the underlying connected graph and the cross-link, which remain in the node connectivity graph. We have given simulation results for the performance analysis of our proposed protocol compared to the competitive schemes and found improvement in terms of an increased packet delivery success rate, reducing routing protocol overhead and increased the path length.
Perinatal Caffeine, Acting on Maternal Adenosine A1 Receptors, Causes Long-Lasting Behavioral Changes in Mouse Offspring

Background There are lingering concerns about caffeine consumption during pregnancy or the early postnatal period, partly because there may be long-lasting behavioral changes after caffeine exposure early in life. Methodology/Principal Findings We show that pregnant wild type (WT) mice given modest doses of caffeine (0.3 g/l in drinking water) gave birth to offspring that as adults exhibited increased locomotor activity in an open field. The offspring also responded to cocaine challenge with greater locomotor activity than mice not perinatally exposed to caffeine. We performed the same behavioral experiments on mice heterozygous for adenosine A1 receptor gene (A1RHz). In these mice signaling via adenosine A1 receptors is reduced to about the same degree as after modest consumption of caffeine. A1RHz mice had a behavioral profile similar to WT mice perinatally exposed to caffeine. Furthermore, it appeared that the mother's genotype, not offspring's, was critical for behavioral changes in adult offspring. Thus, if the mother partially lacked A1 receptors the offspring displayed more hyperactivity and responded more strongly to cocaine stimulation as adults than did mice of a WT mother, regardless of their genotype. This indicates that long-term behavioral alterations in the offspring result from the maternal effect of caffeine, and not a direct effect on fetus. WT offspring from WT mother but having a A1R Hz grandmother preserved higher locomotor response to cocaine. Conclusions/Significance We suggest that perinatal caffeine, by acting on adenosine A1 receptors in the mother, causes long-lasting behavioral changes in the offspring that even manifest themselves in the second generation.