Miracle-dz/UniFAR-FTUs huggingface dataset:
An Interference Alignment Scheme for Symmetric Multicell Multiuser Channels

The problem of interference alignment (IA) for uplink channels in multicell multiuser cellular networks with arbitrary numbers of transmit and receive antennas is considered. The proposed IA scheme aligns the interference from K users into a subspace established by the interference from p users among those K users. The value of p can be adaptively chosen based on the network configuration. The IA solution is realized by designing precoder matrices from a system of linear equations built upon the IA constraints. The closed-form result for the degrees of freedom (DoF) achievable by the proposed scheme is derived. Numerical analysis shows that, in most cases, the proposed scheme provides higher DoF than other related schemes.
Management of Temporomandibular Joint Ankylosis Associated With Mandibular Asymmetry in Infancy

Temporomandibular joint (TMJ) ankylosis during early childhood always produces alteration of the mandibular growth with facial asymmetry, chin deviation, and malocclusion. The younger the ankylosis happens, the more severe the facial deformity presents. When TMJ ankylosis occurs in infancy, there might be a delay in diagnosis and treatment. In this article, we describe a case of TMJ ankylosis in a 10-month-old boy. The etiology was indistinct. Surgical plan including modified gap arthroplasty, costochondral graft (CCG), temporalis fascial flap, was preformed to this patient. The joint and the mandibular ramus were restored. No severe complication occurred. There was no recurrence of ankylosis and further developing of mandibular asymmetry during 2-year follow-up period.
SEU rate calculation with GEANT4 (comparison with CREME 86)

This paper reports on single-event upset (SEU) rate calculations using the GEANT4 code. Single event effect rate modeling can be performed using various approaches. In this paper, we propose to compare the standard rectangular parallepiped (RPP) cosmic ray effects in microelectronic code (CREME86) model with our direct Monte Carlo simulation using the GEANT 4 (radiation transport code developed by CERN) software. The results obtained on two device types are in good agreement with CREME86.
Estimation of Trust Metrics for MANET Using QoS Parameter and Source Routing Algorithms

Estimation of trust in ad-hoc networks is an inevitable basis for hybrid networks to inter-operate. The contributions in this paper provide a framework for estimating the trust between nodes in an ad hoc network based on quality of service parameters. Probabilities of transit time variation, deleted, multiplied and inserted packets, processing delays are used to estimate and update trust. Functions which facilitate this are provided and evaluated. It has been shown that only two end nodes need to be involved and thereby achieve reduced overhead. The framework proposed is applicable and useful to estimate trust in covert unobservable and anonymous communications.
Alternative Hypotheses about the Excess Return on Dollar Assets, 1980-84

Desde fines de 1980 hasta 1984, los activos denominados en dolares de EE.UU. registraron rendimientos medios anuales 12% a 18% superiores a los de activos similares denominados en otras monedas importantes. Este margen, cuantioso y sin precedentes, requiere una explicacion que armonice con la existencia de mercados financieros eficientes. El presente documento senala que las grandes diferencias en rendimiento pueden obedecer a una diferencia sistematica entre las variaciones previstas y reales de los tipos de cambio. Se analizan empiricamente dos hipotesis basadas en la idea de que, durante un periodo prolongado, existio una probabilidad pequena pero importante de que el dolar sufriera una gran depreciacion. Dado que dicha depreciacion no se produjo, los rendimientos reales de los activos en dolares se mantuvieron constantemente por encima de lo previsto. Los dos modelos estudiados son, en primer lugar, un modelo “problema del peso” en el cual la causa de la discrepancia entre las variaciones reales y las previstas de los tipos de cambio es la posibilidad de una modificacion del regimen cambiario y, en segundo lugar, un modelo de “burbuja especulativa” en el cual las expectativas del mercado hacen desviar temporalmente el tipo de cambio respecto de su valor basico, si bien se mantiene latente la posibilidad de que estalle la burbuja y el tipo de cambio descienda bruscamente hasta su valor basico. Aunque no se excluyen necesariamente otras explicaciones, las verificaciones empiricas desarrolladas en este articulo demuestran la plausibilidad de las dos hipotesis propuestas. Asimismo, ambos modelos pueden contribuir a la explicacion. La repentina depreciacion del dolar producida en marzo de 1985 semejaba el estallido de la burbuja. Otra brusca caida del dolar registrada en el periodo septiembre-octubre de 1985, luego de que los paises del Grupo de los Cinco pusieron en marcha un plan de intervencion coordinada y adoptaron otras medidas de politica, marco un importante cambio de regimen cambiario, es decir, una situacion del tipo descrito por el modelo "problema del peso".
Abstracts presented at the European Association for Osseointegration (EAO) Congresses: Publication fate and discrepancies with full-length articles.

OBJECTIVES To investigate the full publication proportion (FPP) of abstracts presented at the 2010 and 2011 EAO Congresses, analyse the discrepancies between abstracts and their full publications, and explore potential predictors of FPP and discrepancies. METHODS Abstracts presented at the 2010 and 2011 EAO Congresses were retrieved. Associated full publications were identified by searching PubMed, Embase and Google Scholar. Discrepancies between abstracts and full publications were identified, classified and evaluated using a discrepancy score. The Kaplan-Meier survival analysis was used to describe cumulative FPP over time. Predictors for FPP and the discrepancy score were analysed using cox regression modelling and a linear regression model, respectively. RESULTS 850 abstracts were included. The overall FPP was 36.4% with a median time lapse of 12 months. Higher FPP were significantly associated with oral presentation (HR=2.33; 95% CI: 1.68 to 3.22; p<0.001), multiple affiliations (HR =1.32; 95% CI: 1.00 to 1.73; p=0.048) and presence of statistical tests (HR =1.78; 95% CI: 1.36 to 2.32; p<0.001). 91.3% pairs had at least one minor change from the abstract and 70.9% had at least one major change. Greater discrepancy score was significantly associated with longer time lapse (B=0.06; 95% CI: 0.04 to 0.08; p<0.001) and being clinical research (B=1.30; 95% CI: 0.52 to 2.08; p=0.001). CONCLUSIONS Thirty-six percent of abstracts presented at the EAO Congresses were published. Among these, more than two-thirds showed at least one major change in their full publications. Abstracts presented in oral implantology conferences should not be relied upon to inform practice.
A new understanding of the relationship between sugars, dental caries and fluoride use: implications for limits on sugars consumption

Abstract Objective To examine the quantitative relationship between sugar intake and the progressive development of dental caries. Design A critical in-depth review of international studies was conducted. Methods included reassessing relevant studies from the most recent systematic review on the relationship between levels of sugars and dental caries. Reanalysis of dose–response relationships between dietary sugars and caries incidence in teeth with different levels of caries susceptibility in children was done using data from Japanese studies conducted by Takeuchi and co-workers. Setting Global, with emphasis on marked differences in both national sugar intake and fluoride use and preferably where one factor such as sugar intake changed progressively without changes in other factors over a decade or more. Subjects Children aged 6 years or more and adults. Results Caries occurred in both resistant and susceptible teeth of children when sugar intakes were only 2–3 % of energy intake, provided that the teeth had been exposed to sugars for >3 years. Despite increased enamel resistance after tooth eruption, there was a progressive linear increase in caries throughout life, explaining the higher rates of caries in adults than in children. Fluoride affects progression of caries development but there still is a pandemic prevalence of caries in populations worldwide. Conclusions Previous analyses based on children have misled public health analyses on sugars. The recommendation that sugar intakes should be ≤10 % of energy intake is no longer acceptable. The much greater adult burden of dental caries highlights the need for very low sugar intakes throughout life, e.g. 2–3 % of energy intake, whether or not fluoride intake is optimum.
Therapeutical Intervention, Relaxation, Mental Images, and Spirituality (RIME) for Spiritual Pain in Terminal Patients. A Training Program

Therapeutic intervention involving the technique of Relaxation, Mental Images, and Spirituality (RIME) can foster the redefinition of spiritual pain in terminal patients. A training course was developed to instruct health care professionals in its use, and the results were followed up by evaluating reactions of professionals to its use in intervention with patients. Six subjects (a nurse, a doctor, three psychologists, and an alternative therapist), all skilled in palliative care, were invited to take part in the experience. They worked with 11 terminal patients in public hospitals of the cities of Campinas, Piracicaba, and São Paulo, located in Brazil. The theoretical basis for the study involves action research and phenomenology, and the results were analyzed using both qualitative and quantitative methods. The analysis of the experience of the professionals revealed 5 categories and 15 subcategories. The analysis of the nature of spiritual pain revealed 6 categories and 11 subcategories. The administration of RIME revealed statistically significant differences (p < 0.0001), i.e., patients reported a greater level of well-being at the end than at the beginning of sessions, which suggests that RIME led to the redefinition of spiritual pain for these terminal patients. The training program proposed has shown itself to be effective in preparing health care professionals for the use of RIME intervention.
A 5Gb/s NRZ transceiver with adaptive equalization for backplane transmission

The proposed 5Gb/s transceiver has a transmitter with 2-tap pre-emphasis and an adaptive receiver with 1-tap feedforward and 3-tap decision feedback equalization. The quad transceiver occupies 12 mm/sup 2/ in 0.13 /spl mu/m CMOS, consumes 2.1 W from 1.2 V, and has a BER<10/sup -15/ over 4 pairs of 1-meter backplane trace with crosstalk.
RISAT-1: Configuration and performance evaluation

Radar Imaging Satellite (RISAT-1) was launched on 26th April, 2012 and is available to international SAR community and researchers as a source of multi resolution/multi-swath/multi-polarisation SAR data. The first satellite, RISAT-1, carries a multi-mode Synthetic Aperture Radar (SAR) in C-band as the sole payload. RISAT-SAR payload supports variety of imaging modes e.g., stripmap, scanSAR and spotlight. All these imaging modes can be operated in Hybrid polarimetry mode also, making it the first of its kind. The payload is based on active antenna array technology. The active antenna has nominal aperture of 6 m×2m, consisting of 12 tiles which are grouped into 3 panels. The RISAT-1 spacecraft has been built around the SAR payload in order to optimise the spacecraft weight and structure. The satellite is placed in a sun-synchronous orbit with 6 am-6 pm equatorial crossing, to maximize solar power availability. Initial performance assessment indicates very satisfactory performance of the SAR system of RISAT-1 in terms of image quality, calibration, geometric fidelity and consistent product performance and active antenna pattern synthesis. Already from September 2012, data products are available operationally from National Remote Sensing Centre, Hyderabad.
Evaluation and development of the KTH text-to-speech system on the segmental level

A procedure that has been used for several years in developing the Swedish version of the KTH multilingual text-to-speech system on the segmental level is described. Experimental results from an evaluation of synthetic speech by 12 untrained listeners are presented. A method for improved nasal synthesis is discussed. <<ETX>>
A neural network with central pattern generators entrained by sensory feedback controls walking of a bipedal model

A neuromechanical simulation of a planar, bipedal walking robot has been developed. It is constructed as a simplified, planar musculoskeletal model of the biomechanics of the human lower body. The controller consists of a dynamic neural network with central pattern generators (CPGs) entrained by force and movement sensory feedback to generate appropriate muscle forces for walking. The CPG model is a two-level architecture, which consists of separate rhythm generator and pattern formation networks. The biped model walks stably in the sagittal plane without inertial sensors or a centralized posture controller or a ‘baby walker’ to help overcome gravity. Its gait is similar to humans’ and it walks at speeds from 0.850 m s−1 up to 1.289 m s−1 with leg length of 0.84 m. The model walks over small unknown steps (6% of leg length) and up and down 5° slopes without any additional higher level control actions.
Super-Ensembler: interactive visual analysis of data surface sets

Multiple-run simulations are widely used for investigation of dynamic systems, where they combine varied input parameters and different kinds of outputs. In this work, we focus on a simulation type that outputs an ensemble of surfaces for each simulation run. Multiple simulation runs, in this case, result in a set of surface ensembles - a super-ensemble. We propose an advanced data model, abstract analysis tasks, and introduce an analysis workflow for the exploration of super-ensembles. To address the challenging exploration and analysis tasks, we present Super-Ensembler, a visual analytics system for analysis of data-surface collections as super-ensembles. We introduce novel aggregation methods and corresponding visualizations. The aggregation techniques reduce data complexity by either yielding a super-ensemble of a simplified data type or a conventional surface ensemble. Novel visual representations include an overview visualization for super-ensembles, 3D multi-resolution box plots, and intersection contours. Together with standard views, such as scatter plots, parallel coordinates, or histograms, they are integrated into a coordinated multiple views framework. The newly proposed methodology is developed in a close collaboration with experts from the automotive domain. We evaluate our approach by means of a case study in the context of gear transmission design. Positive feedback and reported speed-up of the analysis indicate the usefulness of the presented approach.
Better Health and Ambient Assisted Living (AAL) from a global, regional and local economic perspective

Assisting technologies aim to provide more support in the meeting of one's daily needs and the preservation of one's autonomy and quality of life. Continual developments in medicine, medical equipment, nursing and medical care are assumed to lead to new types of care being created. A high degree of social and economic relevance has been attributed to assisting technologies, as well as information and communication systems, by scientists and politicians alike, particularly in connection with the development, promotion and organization of so-called senior-friendly environments and with ambient assisted living (AAL).
Preferential Association of Endophytic Bradyrhizobia with Different Rice Cultivars and Its Implications for Rice Endophyte Evolution

ABSTRACT Plant colonization by bradyrhizobia is found not only in leguminous plants but also in nonleguminous species such as rice. To understand the evolution of the endophytic symbiosis of bradyrhizobia, the effect of the ecosystems of rice plantations on their associations was investigated. Samples were collected from various rice (Oryza sativa) tissues and crop rotational systems. The rice endophytic bradyrhizobia were isolated on the basis of oligotrophic properties, selective medium, and nodulation on siratro (Macroptilium atropurpureum). Six bradyrhizobial strains were obtained exclusively from rice grown in a crop rotational system. The isolates were separated into photosynthetic bradyrhizobia (PB) and nonphotosynthetic bradyrhizobia (non-PB). Thai bradyrhizobial strains promoted rice growth of Thai rice cultivars better than the Japanese bradyrhizobial strains. This implies that the rice cultivars possess characteristics that govern rice-bacterium associations. To examine whether leguminous plants in a rice plantation system support the persistence of rice endophytic bradyrhizobia, isolates were tested for legume nodulation. All PB strains formed symbioses with Aeschynomene indica and Aeschynomene evenia. On the other hand, non-PB strains were able to nodulate Aeschynomene americana, Vigna radiata, and M. atropurpureum but unable to nodulate either A. indica or A. evenia. Interestingly, the nodABC genes of all of these bradyrhizobial strains seem to exhibit low levels of similarity to those of Bradyrhizobium diazoefficiens USDA110 and Bradyrhizobium sp. strain ORS285. From these results, we discuss the evolution of the plant-bradyrhizobium association, including nonlegumes, in terms of photosynthetic lifestyle and nod-independent interactions.
Gender As a Social Structure

In this article, the author argues that we need to conceptualize gender as a social structure, and by doing so, we can better analyze the ways in which gender is embedded in the individual, interactional, and institutional dimensions of our society. To conceptualize gender as a structure situates gender at the same level of general social significance as the economy and the polity. The author also argues that while concern with intersectionality must continue to be paramount, different structures of inequality have different constructions and perhaps different influential causal mechanisms at any given historical moment. We need to follow a both/and strategy to understand gender structure, race structure, and other structures of inequality as they currently operate while also systematically paying attention to how these axes of domination intersect. Finally, the author suggests we pay more attention to doing research and writing theory with explicit attention to how our work can indeed help transform as well as inform society.
Inhibition of mutant p53 phosphorylation at serine 15 or serine 315 partially restores the function of wild-type p53.

The tumor suppressor protein p53 is a phosphoprotein and has growth and transformation suppression functions. Phosphorylation of wild-type p53 is known to modulate its function. To investigate the role of phosphorylation in modulating the functions of mutant p53, we constructed a series of phosphorylation site mutants based on mutant p53 Ala143 (p53-143) and p53 His175 (p53-175). When transfected into p53-negative Saos-2 cells, parental mutant p53-143 and p53-175 abolished both growth suppression and induction of apoptosis. However, DNA-activated protein kinase (DNA-PK) or cyclin-dependent kinase (cdks) phosphorylation site double mutants partially restored the growth suppression and induction of apoptosis and recovered the p53-specific DNA binding activity. We also observed a difference in sensitivity to calpain from parental mutants p53-175 and p53-175/15 or p53-175/315. These results suggest that the lack of phosphorylation at either the DNA-PK or cdks site in p53 mutants partially restores the wild-type functions by altering their conformation.
On the Impact of Carrier Sense Based Medium Access Control on Cooperative Schemes in Wireless Ad Hoc Networks

Cooperative techniques have been shown to significantly improve the performance of wireless networks. Despite being a mature technology in single communication link scenarios, their implementation in wider, and practical, networks poses several challenges which have not been fully identified and understood so far. In this paper, the implementation of cooperative communications in non-centralized ad hoc networks with sensing-based channel access is extensively discussed. Both analysis and simulation are employed to provide a clear understanding of the mutual influence between the link layer contention mechanism and relaying protocols. Results show that sensing-based channel access significantly hampers the effectiveness of cooperation by biasing the spatial distribution of available relays, and by inducing a level of spatial and temporal correlation of interference that diminishes the diversity improvement on which cooperative gains are founded. Moreover, the efficiency reduction entailed by several practical protocol issues related to carrier sense multiple access which are typically neglected in the literature is thoroughly investigated.
Community detection in multiplex networks: A seed-centric approach

Multiplex network is an emergent model that has been lately proposed in order to cope with the complexity of real-world networks. A multiplex network is defined as a multi-layer interconnected graph. Each layer contains the same set of nodes but interconnected by different types of links. This rich representation model requires to redefine most of the existing network analysis algorithms. In this paper we focus on the central problem of community detection. Most of existing approaches consist on transforming the problem, in a way or another, to the classical setting of community detection in a monoplex network. In this work, we propose a new approach that consists on adapting a seed-centric algorithm to the multiplex case. The first experiments on heterogeneous bibliographical networks show the relevance of the approach compared to the existing algorithms.
Fast and secure chaotic stream cipher with a MEMS-based seed generator

In this work, we have used a new concept of sensor-based seed generator in order to generate the keys for a stream cipher based on a new algorithm mixing a Skew Tent Map and a Linear Feedback Shift Register. The cryptosystem has been implemented in a Xilinx Virtex 7 FPGA and has been proven to be fast and secure for application in IoT networks.
Nonlinear extension of multiobjective multiclass Support Vector Machine

Support Vector Machines (SVM) is originally designed for binary classification having high generalization ability, and thus, many kinds of extended models have been investigated for multiclass classification. In this paper, we focus on a multiobjective multiclass SVM which is one of all-together methods, which maximizing all of the geometric margins simultaneously. Although the model is reported to have high generalization ability, it is formulated as a piece-wise linear model. Hence, the model can be applied to only some kinds of classification problems. Therefore, in this paper, we extend the piece-wise linear MMSVM into a nonlinear one to which kernel method can be applied, where weight vectors of the discriminant function are represented by linear sums of the training patterns in the feature space. Moreover, in order to solve the proposed nonlinear model, we introduce a single-objective optimization problem by exploiting the ε-constraint method and adding the limitation of its constraints. The introduced single-objective model can be regarded as a second-order cone programming (SOCP) problem, and its optimal solution is Pareto optimal for the proposed nonlinear MMSVM. Furthermore, through numerical experiments we verify that the nonlinear MMSVM maximizes the geometric margins in the sense of multiobjective optimization, and has good generalization ability.