Miracle-dz/UniFAR-FTUs huggingface dataset:
Conception et prédiction des caractéristiques diélectriques des matériaux composites à deux et trois phases par la modélisation et la validation expérimentale. (Conception and Prediction of Dielectric Characteristics of Two- and Three- Phase Composite Materials Through Modeling and Experimental Vali

Ce travail porte sur la conception et la prediction des caracteristiques dielectriques de materiaux composites modeles a deux et trois phases, par la modelisation et la validation experimentale. La modelisation des materiaux est effectuee dans le code de calculs Phi3d selon l'algorithme de resolution de l'equation de Laplace par la methode des equations integrales de frontiere (MEIF). La permittivite effective complexe des materiaux composites est etudiee en fonction de la frequence dans la gamme 50 Hz - 1 MHz , dans l'approximation quasi statique, et en fonction de la concentration des inclusions et de leurs formes. La validation experimentale est menee sur des echantillons de materiaux elabores en laboratoire. Les composites etudies sont les materiaux a deux et a trois constituants, et des materiaux avec des inclusions enrobees. Des echantillons a base de resine epoxyde et contenant des inclusions de differentes natures sont analyses. Il s'agit plus particulierement de micro billes de verre pleines et de micro billes de verre creuses (ce type d'inclusions a permis de verifier la validite de la methode numerique par rapport aux lois analytiques) et du titanate de baryum dans quel cas les simulations ont permis de predire la forme des particules de cette poudre. Des echantillons avec des fibres de verre decoupes sur un corps d'isolateur composite en polymeres sont egalement etudies. Dans ce cas, le taux de l'humidite absorbee par ces echantillons dans le processus de cuisson dans l'eau, a ete determine par la modelisation. Enfin, l'etude de la grele fondante dans l'air a permis de montrer que le coefficient d'attenuation determine par les simulations est en parfait accord avec celui predit par les lois analytiques.
Allelic polymorphism of GIGANTEA is responsible for naturally occurring variation in circadian period in Brassica rapa

Significance The plant circadian clock affects many aspects of growth and development and influences both fitness in natural settings and performance in cultivated conditions. We show that GIGANTEA (GI) underlies a major quantitative trait locus for circadian period in Brassica rapa by fine-mapping, analysis of heterogeneous inbred lines, and transgenic rescue of an Arabidopsis gi-201 loss-of-function mutant. Analysis of chimeric and mutated B. rapa GI alleles identified the causal nucleotide polymorphism responsible for the allelic variation in circadian period, cold and salt tolerance, and red light inhibition of hypocotyl elongation. Allelic variation of GI and of clock genes in general offers targets for marker-assisted (molecular) breeding for enhanced stress tolerance and potentially for improved crop yield. GIGANTEA (GI) was originally identified by a late-flowering mutant in Arabidopsis, but subsequently has been shown to act in circadian period determination, light inhibition of hypocotyl elongation, and responses to multiple abiotic stresses, including tolerance to high salt and cold (freezing) temperature. Genetic mapping and analysis of families of heterogeneous inbred lines showed that natural variation in GI is responsible for a major quantitative trait locus in circadian period in Brassica rapa. We confirmed this conclusion by transgenic rescue of an Arabidopsis gi-201 loss of function mutant. The two B. rapa GI alleles each fully rescued the delayed flowering of Arabidopsis gi-201 but showed differential rescue of perturbations in red light inhibition of hypocotyl elongation and altered cold and salt tolerance. The B. rapa R500 GI allele, which failed to rescue the hypocotyl and abiotic stress phenotypes, disrupted circadian period determination in Arabidopsis. Analysis of chimeric B. rapa GI alleles identified the causal nucleotide polymorphism, which results in an amino acid substitution (S264A) between the two GI proteins. This polymorphism underlies variation in circadian period, cold and salt tolerance, and red light inhibition of hypocotyl elongation. Loss-of-function mutations of B. rapa GI confer delayed flowering, perturbed circadian rhythms in leaf movement, and increased freezing and increased salt tolerance, consistent with effects of similar mutations in Arabidopsis. Collectively, these data suggest that allelic variation of GI—and possibly of clock genes in general—offers an attractive target for molecular breeding for enhanced stress tolerance and potentially for improved crop yield.
On Modularity Clustering

Modularity is a recently introduced quality measure for graph clusterings. It has immediately received considerable attention in several disciplines, particularly in the complex systems literature, although its properties are not well understood. We study the problem of finding clusterings with maximum modularity, thus providing theoretical foundations for past and present work based on this measure. More precisely, we prove the conjectured hardness of maximizing modularity both in the general case and with the restriction to cuts and give an Integer Linear Programming formulation. This is complemented by first insights into the behavior and performance of the commonly applied greedy agglomerative approach.
The Oxidative Stability of Champagne Base Wines Aged on Lees in Barrels: A 2-Year Study

In contrast with the elaboration of still wines, the impact of barrel aging before the “prise de mousse” on the aging potential of Champagne base wines has not been studied so far. In the present study, the oxidative stability and related molecular fingerprints of Chardonnay Champagne base wines were reported after 1 year of on lees ageing in new oak barrels for two consecutive vintages. Regardless of the vintage, on lees ageing in new oak barrels improved the wines’ oxidative stability estimated by DPPH assay at 1 year, while UHPLC-Q-ToF-MS molecular profiling showed clear chemical modifications according to the ageing period. Oak wood molecular ellagitannins followed a linear extraction during barrel ageing for both vintages. However, the wines’ antioxidant metabolome composed by antiradical and nucleophilic compounds clearly appeared vintage- and barrel-aging dependent. These results enrich the understanding of white wines antioxidant metabolome and improve the knowledge of the ageing potential of Chardonnay Champagne base wines by integrating vintage- and barrel-ageing effects.
Active delay control for TCP

Active delay control is a novel extension for TCP, where TCP endpoints impose delays on the transmission of packets to improve performance. The amount of delay can be calculated by routers from the level of congestion, or by endpoints from the received congestion signals. In particular, when there are many TCP flows competing for the bandwidth of a link, they can reduce their transmission rates to arbitrary degrees by increasing delays, without experiencing TCP time-outs. Active delay control is therefore useful for those long-lived TCP-based applications that cannot tolerate time-outs. Examples of such applications are video streaming and storage networks. It is also useful for short-lived flows that require short transfer time. Examples of such applications are HTTP transactions. We present the concept and motivation behind active delay control, and evaluate them by simulation.
Iterative denoising-based mesh-to-grid reconstruction with hyperparametric adaptation

This paper presents a new method for the reconstruction of images from samples located at non-integer mesh positions. This is a common scenario for many image processing applications such as multi-image super-resolution, frame-rate up-conversion, or virtual view synthesis in multi-camera systems. The proposed method consists of an iterative procedure that employs adaptive denoising in order to reduce the reconstruction error. The denoising strength is controlled by a novel hyper-parametric adaptation mechanism that aims at maximizing the reconstruction quality in each iteration. Furthermore, the usage of the proposed hyperparametric model drastically reduces the number of necessary parameters that need to be trained or stored. In terms of luminance PSNR, the proposed approach improves the reconstruction quality by more than 1 dB with respect to the initial estimate and outperforms current state-of-the-art denoising-based reconstruction schemes by up to 0.5 dB.
A SoC simulator , the newest component in Open 64 Report and Experience in Design and Development of a baseband SoC

First silicon success, total system performance and time to market are three challenges in SoC design. Hardware/software co-design approach with a good simulation environment is usually used to address these challenges. In this paper we report a SoC simulation infrastructure which is used for complex SoC design. We accomplished the three big challenges with the help of a simulation tool set. Experience on design of a baseband processor based on the simulation environment is also presented. We show how we start from scratch, produced a product ready SoC within two years and achieve first silicon success with our production tape out. This system simulator has been open sourced as part of Open64 source tree in the summer of 2008. With this simulator, the Open64 is one step closer in becoming a complete toolchain suitable for new processor and SoC development.
Role of lymphoscintigraphy in diagnosis and management of patients with leg swelling of unclear etiology

Background: To study the utility of lymphoscintigraphy in detection of lymphatic obstruction in patients with leg swelling of unclear etiology, selection of site for nodo venous shunt procedure, and follow-up lymphoscintigraphic documentation of improved lymph flow in surgically treated limb. Materials and Methods: Twenty four consecutive patients with leg swelling, 10 male, 14 female with mean age 47 years, range from 13 years to 74 years underwent lymphoscintigraphy. All patients were referred from Department of Plastic Surgery, after initial work-up, and routine investigations to rule out the other causes of leg swelling. Both clinical and scintigraphic staging performed for all patients. All clinically and scintigraphically positive patients treated with decongestive lymphatic therapy (DLT). In addition to the DLT, those patients positive for unilateral or bilateral lymphedema, consented for surgical intervention, nodo venous shunt (NVS) in their only affected or one of the two affected lower limbs. Follow-up lymphoscintigraphy performed in operated cases after 3 months to 6 months of surgery, lymphoscintigraphy images of each patient in pre and post-surgery compared. Results: In 20/24 cases (83%) of clinically positive leg swelling were found to be positive for lymphedema on lymphoscintigraphy and remaining, 4/24 were scintigraphically normal. Based on the clinical and lymphoscintigraphy staging, 03/20 cases (15%) had Grade I lymphedema, 01/20 (5%) Grade II lymphedema, 06/20 (30%) Grade III and remaining 10/20 (50%) had Grade IV lymphedema. 11/20 cases of Lymphedema (55%) were managed conservatively by only DLT and in remaining 09/20 cases (45%), who were case of Grade IV, lymphedema (five patients with unilateral and four patients with bilateral disease) initially treated with DLT, and on completion of DLT, undergone for NVS procedure, in their unilaterally affected lower limb or one of the two diseased lower limbs. All nine patients showed remarkable clinical improvement in leg swelling and their follow-up lymphoscintigraphy showed normal visualization of lymphatic channels. No patient developed any recurrence. Conclusion: Pre-operative functional evaluation of lymphatic channels using lymphoscintigraphy, is a widely available, simple imaging test and highly useful for documentation of lymphedema in patients with leg swelling of unclear etiology and also for exact localization of inguinal lymph nodes to perform the NVS procedure. Further, it can play important role for follow-up of patients receiving DLT or DLT with surgical intervention that provides early relief from clinical symptoms.
Comprehensive Understanding the Inhibitors and Enablers of Knowledge Transfer in ERP Assimilations: a Multi-Case Study

In the enterprise resource planning (ERP) assimilation process, organizations are increasingly concerned about how to ensure employees to have sufficient ERP knowledge effectively. However, limited attention has been directed toward examining knowledge transfer in the assimilation stage systematically. In particular, a significant omission is to understand the key enablers and inhibitors of employees’ learning intention who may receiver knowledge passively in the mandatory setting. We employed a multi-case study method in this exploratory research by interviewing 33 ERP users at all levels in nine big-size firms in China. Results of this analysis suggested that causal ambiguity in new systems, incumbent system habit, and technostress significantly undermined recipients’ learning intentions. Meanwhile, perceived management support, relation embeddedness, and symbolic adoption were key determinants of increased their learning intentions. This study is arguably the first that attempts to look into passive knowledge transfer phenomenon in some depth, and extends prior researches in ERP lifecycle by shedding light on the joint influences of enablers and inhibitors in ERP assimilation context.
Setting Up the Speech Production Network: How Oscillations Contribute to Lateralized Information Routing

Speech production involves widely distributed brain regions. This MEG study focuses on the spectro-temporal dynamics that contribute to the setup of this network. In 21 participants performing a cue-target reading paradigm, we analyzed local oscillations during preparation for overt and covert reading in the time-frequency domain and localized sources using beamforming. Network dynamics were studied by comparing different dynamic causal models of beta phase coupling in and between hemispheres. While a broadband low frequency effect was found for any task preparation in bilateral prefrontal cortices, preparation for overt speech production was specifically associated with left-lateralized alpha and beta suppression in temporal cortices and beta suppression in motor-related brain regions. Beta phase coupling in the entire speech production network was modulated by anticipation of overt reading. We propose that the processes underlying the setup of the speech production network connect relevant brain regions by means of beta synchronization and prepare the network for left-lateralized information routing by suppression of inhibitory alpha and beta oscillations.
Involvement of auditory cortical and hippocampal neurons in auditory working memory and reference memory in the rat

The goal of the present study was to see whether one neuron is involved exclusively in one type of memory or in different types of memory. Single-unit activity was recorded from rat hippocampal CA1, CA3, dentate gyrus, and auditory cortex (AC) during performances of auditory working memory (WM) and reference memory (RM) tasks. Both the memory tasks employed identical apparatus and stimuli and differed only in the type of memory required for correct performance. Around 10% and 43% of the units from the four brain regions showed sensory correlates (differences in activity due to the type of sensory stimulus) only in the WM or RM task, respectively. Only the AC had units showing different kinds of sensory correlates between the WM and RM tasks. About 30% of the units from the four regions had sensory-retention correlates (sustained differential activity during the delay) only in the RM task, whereas the AC had units with sensory-retention correlates only in the WM task or in both the WM and RM tasks. Approximately 35% of the units from the hippocampal regions showed motor correlates (increments of activity immediately prior to responses) only in the WM task. Another 30% of the hippocampal units showed such correlates both in the WM and RM tasks. About 22% of the hippocampal CA1 and CA3 units showed comparison-motor correlates (increases of activity prior to correct responses) only in the WM task. These results indicate that some neurons are involved solely in WM or RM, whereas other neurons are involved in both WM and RM. The results also suggest that more neurons are involved in sensory and retention processing for RM than for WM, and that the AC alone has flexible neurons involved in the processes for both types of memory. More hippocampal neurons are involved in the motor and comparison processes for WM than for RM.
Pervasive eating habits monitoring and recognition through a wearable acoustic sensor

Eating habits provide clinical diagnosis evidences of lifestyle related diseases, such as dysphagia and indigestion. However, it is costly to obtain eating habit information of common people in terms of both time and expenses. This paper presents a pervasive approach for eating habit monitoring and recognition by a necklace-like device and a smartphone communicating via bluetooth. The necklace-like device acquires acoustic signals from the throat, and the data are processed in the smartphone to recognize important features. With complex acoustic signals collected from the throat, our method comprehensively analyzes and recognizes different events including chewing, swallowing, and breathing in the smartphone. Experiments show that the proposed approach can recognize different acoustic events effectively, and the recognition accuracy with K-Nearest Neighbor (KNN) and Support Vector Machine (SVM) is 86.82% and 98.35%, respectively. Finally, a real eating case study is conducted to validate the proposed approach.
Analysis and Implementation of a High-Performance-Integrated KY Converter

Boost converter often exhibits large output voltage ripples and slow transient response due to the pulsating output capacitor current and the right-half-plane zero in transfer function from duty ratio to output voltage. On the contrary, a KY converter shows small output voltage ripples and fast transient response compared with the boost converter thanks to its buck-converter-like characteristics. In this study, a comprehensive study of an integrated KY converter considering parasitic resistance is presented as design guidelines for its IC implementation, and various aspects of KY converter versus boost converter are also analyzed to show its advantages. In particular, optimum transistor sizes, power losses, and output voltage ripples are analyzed in depth. The designs of power components including energy-transferring capacitor, inductor, and filter capacitor are discussed. Theoretical derivations of load and line regulations are also provided. The designed KY converter has been fabricated with standard 0.18-µm CMOS process and the total chip area is 1.93 mm2 including pads. The output voltage is 2.5 V with the regulated supply voltage ranging from 1.55 to 1.8 V, at switching frequency of 1 MHz. The output voltage ripples are 10 mV. Maximum efficiency of 95.7% is obtained at load current of 55 mA and supply voltage of 1.8 V. Efficiency is no less than 92.9% for load current as low as 30 mA. Even with simple compensation scheme employed, the output voltage settles within 48 µs when loading a step current of 150 mA.
Assessing Self-Confidence In Ict Accounting Education

In Indonesia itself, the use of ICT, especially in education, is still lacking. Meanwhile, in facing the globalization era of the 21st century, the use of ICT is a necessity to increase the effectiveness and efficiency of performance, including in the teaching and education process. The purpose of this research is to find out the teacher's perception in education using ICT. To answer the formulation of the problem in this study, a descriptive research method was used. Descriptive research is a research method used to find the widest possible knowledge of the object of research at a certain time. This research method also aims to explain or describe a situation, event, object or person, or anything related to variables that can be explained. For the purpose of data analysis and hypothesis testing by Path Analysis and Sobel tests were used. The research sample used proportional random sampling technique, using path analysis (Path) and sobel test (mediation test). Based on the results and discussion of the study, it was concluded that attitudes interpreted in the context of cognition, affection and conation are able to mediate the relationship between perceived usefulness and self-confidence. The results of the mediation test produce a relationship pattern, namely the perception of usefulness with confidence can be explained either directly or through the mediation of attitudes towards the use of accounting computer applications. For wider interests not only in the field of education, future research can be directed at the use of public information system applications, by adding the dependent variable costs and benefits as well as the independent variable actual use.
Semantic Tree Kernels to Classify Predicate Argument Structures

Recent work on Semantic Role Labeling (SRL) has shown that syntactic information is critical to detect and extract predicate argument structures. As syntax is expressed by means of structured data, i.e. parse trees, its encoding in learning algorithms is rather complex. In this paper, we apply tree kernels to encode the whole predicate argument structure in Support Vector Machines (SVMs). We extract from the sentence syntactic parse the subtrees that span potential argument structures of the target predicate and classify them in incorrect or correct structures by means of tree kernel based SVMs. Experiments on the PropBank collection show that the classification accuracy of correct/incorrect structures is remarkably high and helps to improve the accuracy of the SRL task. This is a piece of evidence that tree kernels provide a powerful mechanism to learn the complex relation between syntax and semantics.
Fanconi Anemia Core Complex Gene Promoters Harbor Conserved Transcription Regulatory Elements

The Fanconi anemia (FA) gene family is a recent addition to the complex network of proteins that respond to and repair certain types of DNA damage in the human genome. Since little is known about the regulation of this novel group of genes at the DNA level, we characterized the promoters of the eight genes (FANCA, B, C, E, F, G, L and M) that compose the FA core complex. The promoters of these genes show the characteristic attributes of housekeeping genes, such as a high GC content and CpG islands, a lack of TATA boxes and a low conservation. The promoters functioned in a monodirectional way and were, in their most active regions, comparable in strength to the SV40 promoter in our reporter plasmids. They were also marked by a distinctive transcriptional start site (TSS). In the 5′ region of each promoter, we identified a region that was able to negatively regulate the promoter activity in HeLa and HEK 293 cells in isolation. The central and 3′ regions of the promoter sequences harbor binding sites for several common and rare transcription factors, including STAT, SMAD, E2F, AP1 and YY1, which indicates that there may be cross-connections to several established regulatory pathways. Electrophoretic mobility shift assays and siRNA experiments confirmed the shared regulatory responses between the prominent members of the TGF-β and JAK/STAT pathways and members of the FA core complex. Although the promoters are not well conserved, they share region and sequence specific regulatory motifs and transcription factor binding sites (TBFs), and we identified a bi-partite nature to these promoters. These results support a hypothesis based on the co-evolution of the FA core complex genes that was expanded to include their promoters.