Miracle-dz/UniFAR-FTUs huggingface dataset:
Energy-aware broadcast MU-MIMO precoder design with imperfect battery knowledge

This paper addresses the problem of precoder design in a MIMO broadcast scenario where the terminals are battery-powered devices provided with energy harvesting capabilities. Models for the power consumption of the RF and decoding stages are discussed and included in the design of the proposed scheme. Sum-rate maximization is taken as optimization policy and energy-related constraints are considered to increase the duration of the batteries and, thus, the network lifetime. Simulation results show that not only the usage of battery is improved when compared with other traditional allocation policies, but also the average data rate is enhanced.
A modified three phase 5-level symmetrical multilevel inverter topology

A modified three phase symmetrical 5-level multilevel inverter structure, derived from a propounded auxiliary (AUX) inverter leg, is presented. The switch count and gate driver requirements are reduced compared to conventional topologies. An attempt is made to optimize the source requirement. The low switching frequency Selective Harmonic Elimination (SHE) method based on Bee algorithm is employed for generating gating signals. Simulations analysis is accomplished by MATLAB/SIMULINK To support the simulation results, experiment is conducted on a low power prototype.
Reply: Sleep in Patients with Remitted Bipolar Disorders: Analyses stratified on actigraphy devices, age and gender

remitted bipolar disorder: a naturalistic case-control study using actigraphy. J Affect Disord 2014;158:1–7. 4. Kaplan KA, Talbot LS, Gruber J, Harvey AG. Evaluating sleep in bipolar disorder: comparison between actigraphy, polysomnography, and sleep diary. Bipolar Disord 2012;14:870–879. 5. Boudebesse C, Geoffroy PA, Bellivier F et al. Correlations between objective and subjective sleep and circadian markers in remitted patients with bipolar disorder. Chronobiol Int 2014;31:698–704.
Design and optimization of networks with dynamic routing

The growth of electronic switching systems and the high-capacity interoffice signaling network provide an opportunity to extend telephone network routing rules beyond the conventional hierarchy. Network models are described that illustrate the savings inherent in designing networks for dynamic, nonhierarchical routing. An algorithm for engineering such networks is discussed, and the comparative advantages of various path-routing and progressive-routing techniques are illustrated. A particularly simple implementation of dynamic routing called two-link dynamic routing with crankback is discussed and is shown to yield benefits comparable to much more complicated routing schemes. The efficient solution of embedded linear programming (LP) routing problems is an essential ingredient for the practicality of the design algorithm We introduce an efficient heuristic optimization method for solution of the LP routing problems, which greatly improves computational speed with minimal loss of accuracy. We also project computational requirements for a 200-node design problem, which is the estimated size of the intercity Bell System dynamic routing network in the 1990s.
Gastritis induced by Helicobacter pylori in gnotobiotic piglets.

Helicobacter pylori has recently been recognized as a gastric pathogen in humans. Experimental oral inoculation of gnotobiotic piglets with this organism results in gastritis that exhibits many features of the corresponding disease in humans. In piglets the organism is restricted to the gastric microenvironment and persists in that location despite prompt humoral and cellular responses to antigens of H. pylori. The gnotobiotic piglet model is useful for delineation of the role of suspected bacterial virulence factors (i.e., motility and urease production) in gastric colonization and for preclinical determination of the efficacy of various antimicrobial substances.
Composant Passif à Absorbants Saturables sur InP pour le Régénération Tout-Optique de Signaux à Très Hauts-Débits

Ce manuscrit est consacre a la realisation et a l'etude d'un composant a base d'absorbants saturables (AS) sur InP pour la remise en forme de signaux optiques a tres hauts-debits. Le fonctionnement de ce composant tout-optique et passif est base sur la non-linearite d'absorption de puits quantiques (PQ) inseres dans une microcavite Fabry-Perot. Outre son insensibilite a la polarisation et son temps de reponse compatible avec les futurs signaux a hauts-debits, le composant AS presente aussi une large bande passante (BP) lui permettant de traiter plusieurs longueurs d'onde simultanement, faisant de lui un bon candidat pour les futurs dispositifs de regeneration tout-optique a faible cout pour les liaisons a hauts-debits multiplexes en longueur d'onde (WDM). Grâce a une structure optimisee, nous avons pu obtenir un composant avec un temps de reponse aussi court que la picoseconde et une fluence de saturation de seulement quelques µJ/cm2. Les resultats experimentaux ont permis de valider le modele de l'autosaturation des PQ en microcavite developpe lors de cette these, ainsi que celui decrivant le fonctionnement du composant AS a hauts-debits et tenant compte des effets-thermique. Grâce a son optimisation et a une meilleure gestion des effets thermo-optiques, nous avons pu demontrer pour la 1iere fois l'amelioration du taux d'extinction de signaux a 160 GHz (+6 dB sur une BP de 8 nm) et la remise en forme a 160 Gbits/s par un composant AS. Enfin, des resultats de regeneration 2R en boucle de recirculation a 10 Gbits/s et a 43 Gbits/s sont aussi presentes et montrent une amelioration de la distance de propagation de 9,5 (sur 13 nm) et de 6 respectivement.
Human Cytomegalovirus Glycoprotein B Is Required for Virus Entry and Cell-to-Cell Spread but Not for Virion Attachment, Assembly, or Egress

ABSTRACT Glycoprotein B (gB) homologs are conserved throughout the family Herpesviridae and appear to serve essential, universal functions, as well as specific functions unique to a particular herpesvirus. Genetic analysis is a powerful tool to analyze protein function, and while it has been possible to generate virus mutants, complementation of essential virus knockouts has been problematic. Human cytomegalovirus (HCMV) gB (UL55) plays an essential role in the replication cycle of the virus. To define the function(s) of gB in HCMV infection, the BAC system was used to generate a recombinant virus in which the UL55 gene was replaced with galK (pAD/CreΔUL55). UL55 deletions in the viral genome have been made before, demonstrating that UL55 is an essential gene. However, without being able to successfully complement the genetic defect, a phenotypic analysis of the mutant virus was impossible. We generated fibroblasts expressing HCMV gB that complement pAD/CreΔUL55 and produce infectious virions lacking the UL55 gene but containing wild-type gB on the virion surface (ΔUL55-gB HCMV). This is the first successful complementation of an HCMV mutant with a glycoprotein deleted. To characterize ΔUL55 infection in the absence of gB, noncomplementing cells were infected with ΔUL55-gB virus. All stages of gene expression were detected, and significant amounts of DNase-resistant viral DNA genomes, representing whole intact virions, were released into the infected cell supernatant. Gradient purification of these virions revealed they lacked gB but contained other viral structural proteins. The gB-null virions were able to attach to the cell surface similarly to wild-type gB-containing virions but were defective in virus entry and cell-to-cell spread. Glycoprotein B-null virions do, however, contain infectious DNA, as IE gene expression can be detected in fibroblasts following treatment of attached gB-null virions with a membrane fusion agent, polyethylene glycol. Taken together, our results indicate that gB is required for virus entry and cell-to-cell spread of the virus. However, HCMV gB is not absolutely required for virus attachment or assembly and egress from infected cells.
Dynamic Analysis of Flexible-Link Planar Parallel Manipulator with Platform Rigidity Considerations

This paper presents dynamic analysis studies of planar parallel flexible 3-RRR manipulator with and without considering the flexibility of mobile platform. Initially, by treating all the members of the manipulator as flexible, the joint displacements, reaction forces and stresses are obtained during a specified trajectory tracking in Cartesian space. A comparative study is conducted with manipulator configuration having rigid mobile platform using coupled dynamics of limbs and kinematic constraints of mobile platform. Dynamic response of flexible manipulator is validated using ANSYS simulations for two different cases of trajectories. The results show a remarkable effect of flexibility of mobile platform on the overall dynamic response. After validation of the model, the inverse dynamic analysis data is used to create the system dynamics by employing generalized regression neural network (GRNN) model and the forward dynamic solutions of the flexible manipulator are predicted instantaneously. This study is useful for the real time implementation of motion control of flexible manipulators with complex dynamic model of manipulators.
Implementation of CMOS tunable on-chip Gm-C IF filter in RF front-end IC for SDR transceiver

This paper presents the implementation of the variance compensation solution for the center frequency of the intermediate frequency (IF) 10.7 MHz Gm-C filter under the effect of operating temperature. The designed filter is implemented in CMOS 0. 35μm. A digital processing algorithm is used to estimate the center frequency, then the tunable Gm-C filter will be adjusted by an appropriate bias voltage, resulting the reduction of the frequency variance to under 0.1% when the change of the operating temperature in range of — 40°C to 85°C. This solution has been applied efficiently in a HF/VHF software-defined radio system.
Modélisation et optimisation de la consommation énergétique d'un système de communication Wi-Fi

La forte augmentation du nombre de terminaux connectes ces dernieres annees et l'utilisation croissante des technologies de communication impacte de maniere non negligeable la facture energetique. Pour enrayer cette augmentation de la consommation energetique, il devient primordial de pouvoir comparer en termes de consommation les algorithmes de communications numeriques, afin de developper l'architecture de transmission la moins energivore. Dans cette these, la couche physique des standards Wi-Fi IEEE 802.11ac est analysee sous un angle energetique. La puissance dissipee dans les circuits pour faire fonctionner les algorithmes de traitement de signal est prise en compte en plus de la puissance d'emission d'antenne classique. La methodologie mise en œuvre inclut a la fois des simulations et des developpements sur plateforme materielle (FPGA), permettant d'obtenir des evaluations de la consommation plus realistes. Nous avons dans un premier temps analyse de facon isolee les elements composant les chaines de communications numeriques. Puis nous avons integre les periodes d'activite et d'inactivite de chaque element dans le calcul de la consommation energetique globale des chaines. Nous proposons une methode pratique et efficace d'estimation de la consommation, incluant une base de donnees issue de simulations, et une analyse theorique des taux d'activite de chaque element de la chaine. Ces resultats permettent d'analyser la repartition de la consommation en puissance des elements composant les emetteurs et les recepteurs, et de comparer diverses architectures et jeux de parametres. En particulier, nous avons evalue l'impact de deux architectures de Transformees de Fourier Rapides sur la consommation globale du systeme.
Preeclampsia/Eclampsia candidate genes show altered methylation in maternal leukocytes of preeclamptic women at the time of delivery

ABSTRACT Objective: To analyze methylation profiles of known preeclampsia/eclampsia (PE) candidate genes in normal (NL) and preeclamptic (PE) women at delivery. Methods: A matched case–control study comparing methylation in 79 CpG sites/33 genes from an independent gene set in maternal leukocyte DNA in PE and NL (n = 14 each) on an Illumina BeadChip platform. Replication performed on second cohort (PE = 12; NL = 32). Results: PE demonstrates differential methylation in POMC, AGT, CALCA, and DDAH1 compared with NL. Conclusion: Differential methylation in four genes associated with PE may represent a potential biomarker or an epigenetic pathophysiologic mechanism altering gene transcription.
Notice of RetractionAltering the Substrate Specificity of Methyl Parathion Hydrolase for Enhanced Hydrolysis of Paraoxon by Error-Prone PCR

Methyl parathion hydrolase (MPH) from Pseudomonas sp. HS-D36 has been reported to be highly specific in the hydrolysis of methyl parathion (MP) but little active towards paraoxon. In this paper, we employed error-prone polymerase chain reaction (epPCR) to obtain directed evolved MPH with enhanced ability to degrade paraoxon. After one round of epPCR, several MPH variants with improved activities towards paraoxon had been selected from the mutant library. The best mutant of rMPH-m.3 showed nearly 15-fold increased activity towards paraoxon compared with the wild type. Molecular modeling analysis suggested that the four amino acid substitutions (S180R/V268I/G308S/R318C) in the mutant MPH were not directly located in the active site but resulted in a dramatically increased binding for paraoxon. These results provided important information on directed evolution of MPH to enlarge its substrate spectrum.
A comparison of treadmill locomotion in adult cats before and after spinal transection.

1. The aim of this study was to document the kinematics and the electromyographic activity recorded from several muscles during treadmill locomotion in the same cat (N = 4), before and after spinalization by using a chronic implantation method. Because identical experimental and control conditions were used, it was possible to establish similarities and differences in the timing and amplitude of the muscular activity and kinematics under the intact and spinal conditions in the same animal. The data presented in this paper were collected when the cats had fully recuperated a stable locomotor pattern, walking at a constant speed of approximately 0.4 m/s. 2. The adult spinal cats retained many of the general locomotor features and electromyographic (EMG) characteristics seen before transection. However, there were also important differences. 3. There was a reduction in the step length that was principally due to the forward placement of the paw at the onset of the stance. Similarly, there was a decrease in the step cycle duration which was attributed to a reduction of both the stance and swing phases. 4. The overall angular excursions of the hip, knee, and ankle were generally similar, although joints were sometimes more flexed at all phases of the step cycle. In contrast, the overall excursions of the metatarsophalangeal joints was much greater in all four cats after spinalization due to a paw drag during the initial portion of the swing phase that exaggerated the plantarflexion. 5. There was an increase in the EMG amplitude of the flexor muscles at two of three joints (i.e., hip, knee, and ankle) in each cat after spinalization. The change in the EMG amplitude of the extensors did not appear to be as consistent as that observed in the flexor muscles. When looking at each cat individually, the postspinalization extensor activity decreased at two of three joints in two cats, whereas the opposite was true for the other two cats. 6. There was a delay in the onset of the knee flexor (semitendinosus) activity while the ankle dorsiflexor (tibialis anterior) activity started earlier with respect to the beginning of the swing phase. The onset of hip flexors was somewhat more variable. This change in the timing of flexor activity was most probably responsible for the paw drag at the onset of the swing phase. 7. The present results reveal that despite the few differences, the spinal cord and the hindlimbs afferents are capable of generating very good locomotor patterns with almost normal kinematics and EMG characteristics.
Multiobjective Optimization for the Forecasting Models on the Base of the Strictly Binary Trees

The optimization problem dealing with the development of the forecasting models on the base of strictly binary trees has been considered. The aim of paper is the comparative analysis of two optimization variants which are applied for the development of the forecasting models. Herewith the first optimization variant assumes the application of one quality indicator of the forecasting model named as the affinity indicator and the second variant realizes the application of two quality indicators of the forecasting model named as the affinity indicator and the tendencies discrepancy indicator. In both optimization variants the search of the best forecasting models is carried out by means of application of the modified clonal selection algorithm. To obtain the high variety of population of the forecasting models it is offered to consider values of the crowding-distance at the realization of the second optimization variant. The results of experimental studies confirming the use efficiency of the modified clonal selection algorithm on the base of the second optimization variant are given.
Dynamic Service Assignment based on Proportional Ordering for the Adaptive Resource Management of Cloud Systems

The key issue in providing fast and reliable access on cloud services is the effective management of resources in a cloud system. However, the high variation in cloud service access rates affects the system performance considerably when there are no default routines to handle this type of occurrence. Adaptive techniques are used in resource management to support robust systems and maintain well-balanced loads within the servers. This paper presents an adaptive resource management for cloud systems which supports the integration of intelligent methods to promote quality of service (QoS) in provisioning of cloud services. A technique of dynamically assigning cloud services to a group of cloud servers is proposed for the adaptive resource management. Initially, cloud services are collected based on the excess cloud services load and then these are deployed to the assigned cloud servers. The assignment function uses the proposed proportional ordering which efficiently assigns cloud services based on its resource consumption. The difference in resource consumption rate in all nodes is analyzed periodically which decides the execution of service assignment. Performance evaluation showed that the proposed dynamic service assignment (DSA) performed best in throughput performance compared to other resource allocation algorithms.
The impact of CHIP on children's insurance coverage: an analysis using the National Survey of America's Families.

OBJECTIVE To assess the impact of the Children's Health Insurance Program (CHIP) on the distribution of health insurance coverage for low-income children. DATA SOURCE The primary data for the study were from the 1997, 1999, and 2002 National Survey of America's Families (NSAF), which includes a total sample of 62,497 children across all 3 years, supplemented with data from other data sources. STUDY DESIGN The study uses quasi-experimental designs and tests the sensitivity of the results to using instrumental variable and difference-in-difference approaches. A detailed Medicaid and CHIP eligibility model was developed for this study. Balanced repeated replicate weights were used to account for the complex sample of the NSAF. Descriptive and multivariate analyses were conducted. PRINCIPLE FINDINGS The results varied depending on the approach utilized but indicated that the CHIP program led to significant increases in public coverage (14-20 percentage points); and declines in employer-sponsored coverage (6-7 percentage points) and in uninsurance (7-12 percentage points). The estimated share of CHIP enrollment attributable to crowd-out ranged from 33 to 44 percent. Smaller crowd-out effects were found for Medicaid-eligible children. CONCLUSIONS Implementation of the CHIP program resulted in large increases in public coverage with estimates of crowd-out consistent with initial projections made by the Congressional Budget Office. This paper demonstrates that public health insurance expansions can lead to substantial reductions in uninsurance without causing a large-scale erosion of employer coverage.
Automatic Detection of Stress in Mandarin Utterance with Tone Dependent Model

In this paper, we present the work in progress on automatic detection of stress in continuous Mandarin (standard Chinese) spoken utterance, and we are interested in finding the characteristic and performance of the acoustic stress cues in Mandarin. Therefore, correlated stress features including pitch, duration, intensity and spectral intensity are exploited with the purpose of developing the baseline system, and proper normalization is also implemented, we find that stress in Mandarin exhibits a strong correlation with duration and spectral intensity, while pitch and intensity are the secondary in importance. The combination of duration, spectral intensity and intensity parameters performs well with the average equal error rate (EER) of 10.29%. In respect that Mandarin is a tonal language, we propose a new method by using the tone dependent model (TDM) to alleviate the affection of tone in stress detection on the baseline system, experiment results show that the proposed method is feasible and provides respectable performance and the average EER gets to 7.07%, with a 3.22% reduction.
Human Four-Dimensional Spatial Judgments of Hyper-Volume

Abstract: The dimensionality limitation of human spatial representations has been a long-lasting, unsolved issue in psychology, mathematics, and philosophy. The present study examined the possibility of human four-dimensional spatial representations using a spatial judgment task on hyper-volume, a novel property unique to higher dimensional space. Observers studied visual simulations of random wireframe hyper-tetrahedrons (4-simplexes) rotating around the y-z plane and judged their hyper-volume by adjusting the size of a 4-D block. Multiple regression analyses showed a significant correlation between the responses and the actual hyper-volume but not the definition-based, lower-dimensional cues such as the mean 3-D volume, providing empirical evidence of human 4-D spatial representations that can support judgments of certain novel, high-dimensional properties.
Survey on Cloud Radio Access Network

The existing wireless network will face the challenge of data tsunami in the near future. Densification of network will deal huge data traffic but will increase the interferences and network cost. At the same time, the existing wireless network is underutilized due to dynamic traffic. To deal with this adverse scenario, a change in the current network architecture is required. Based on virtualization, Cloud Radio Access Network (CRAN) was proposed for wireless network. In CRAN the functionality of base station will be distributed into base band unit (BBU) and remote radio heads (RRH) which will achieve benefits of centralization. This paper presents a survey on CRAN centring on optimized resource allocation, energy efficiency and throughput maximization under fronthaul capacity. The existing solution and future opportunities in CRAN are also summarized.