Miracle-dz/UniFAR-FTUs huggingface dataset:
An Empirical Study to Validate the Technology Acceptance Model (TAM) in Explaining the Intention to Use Technology among Educational Users

This study examines a sample N=239 of pre-service teachers' self-reported intention to use technology. The Technology Acceptance Model TAM was used as a research framework in which findings contribute to technology acceptance research by demonstrating the suitability of the TAM to explain the intention to use technology among educational users. Using the structural equation modelling for data analysis, a good fit was found for both the measurement and structural models. Overall, the results of this study offer evidence that the TAM is effective in predicting pre-service teachers' intention to use technology. This paper concludes with a discussion of the limitations and recommendations for further study.
Dynamic software architecture management for collaborative communicating systems. Gestion dynamique des architectures logicielles pour les systèmes communicants collaboratifs

In this work, we study dynamic reconfiguration of collaborative communicating applications. Providing generic and scalable solutions for automated self-reconfiguration in group collaboration support systems can be driven by rule-based reconfiguration policies. To achieve this goal, we elaborate a dynamic graph-based modelling approach and we develop structural models that can represent the different interaction dependencies from different configurationrelated point of views: communication flows between the distributed machines, the networked deployment nodes, and the service composition. Our solution is based on graph grammars rewriting. We provide graph transformation to specify rules for changing deployment architecture while being in conformance to an architectural style. In order to handle the complex design of communicating collaborative system architectures and the related adaptation issues, we propose a multi-layer modelling approach. This approach assures generic solutions for automatic context aware adaptation. Our approach is based on the observation that semantic data analysis that can be exploited to manage priorities and more generally to manage communications. This allows us to represent, in a richer way, the semantics of the managed systems.
TOPICS: A modular software architecture for high-latency communication channels

This paper presents TOPICS, a production software architecture for communicating between unmanned maritime vehicles over high-latency channels, including acoustic and Iridium Short Burst Data (SBD) modems. The architecture is modular and extensible to facilitate development of mission-specific capabilities in addition to standard vehicle behaviors. TOPICS supports multiple redundant communication devices per vehicle, low-level modem abstraction for “backseat driver” applications, and file transfer when supported by the modem.
Guidelines for the Design of Personal Document Management User Interfaces

Personal document management describes the activities performed by an individual in creating, acquiring, organizing and maintaining collections of their documents. A study involving 10 in-depth interviews and a survey of 115 participants was conducted in order to better understand the approaches people take to document management in order to inform the development of better user interfaces. These were used to develop an understanding of issues and concepts in personal document management, and a description of three major approaches to personal document management: a piling strategy, a filing strategy and a structuring strategy. From the findings, some general guidelines are proposed for the development of personal document management user interfaces, along with specific user interface guideline to support each of the three identified approaches to personal document management.
Spatio-Temporal Adaptive Sampling Techniques for Energy Conservation in Wireless Sensor Networks. (Techniques d'échantillonnage spatio-temporelles pour la conservation de l'énergie dans les réseaux de capteurs sans fil)

Wireless sensor networks (WSNs) technology have been demonstrated to be a usefulmeasurement system for numerous bath indoor and outdoor applications. There is avast amount of applications that are operating with WSN technology, such asenvironmental monitoring, for forest fire detection, weather forecasting, water supplies, etc. The independence nature of WSNs from the existing infrastructure. Virtually, the WSNs can be deployed in any sort of location, and provide the sensor samples accordingly in bath time and space. On the contrast, the manual deployments can only be achievable at a high cost-effective nature and involve significant work. ln real-world applications, the operation of wireless sensor networks can only be maintained, if certain challenges are overcome. The lifetime limitation of the distributed sensor nodes is amongst these challenges, in order to achieve the energy optimization. The propositions to the solution of these challenges have been an objective of this thesis. ln summary, the contributions which have been presented in this thesis, address the system lifetime, exploitation of redundant and correlated data messages, and then the sensor node in terms of usability. The considerations have led to the simple data redundancy and correlated algorithms based on hierarchical based clustering, yet efficient to tolerate bath the spatio-temporal redundancies and their correlations. Furthermore, a multihop sensor network for the implementation of propositions with more features, bath the analytical proofs and at the software level, have been proposed.
REVERSIBLE DATA HIDING BY USING OPTIMAL VALUE DATA TRANSFER

Data hiding technique aims to embed a little secret information into a carrier signal by changing. The insignificant accessories for copyright protection or covert communication. Commonly circumstances, the data-hiding operation will influence in distortion signal. However, such distortion, unacceptable to a few purposes, e.G., army or scientific pix. On this case it's vital to embed the further secret message with a reversible method due to the customary contents may also be flawlessly restored after extraction of the hidden knowledge. A number of reversible data hiding tactics were proposed, and they can be roughly labeled into three types: lossless compression basedmethods, difference expansion (DE) schemes and histogram modification (HM) methods.
High yield assembly and electron transport investigation of semiconducting-rich local-gated single-walled carbon nanotube field effect transistors

We report the fabrication and electron transport investigation of individual local-gated single-walled carbon nanotube field effect transistors (SWNT-FET) with high yield using a semiconducting-rich carbon nanotube solution. The individual semiconducting nanotubes were assembled at the selected position of the circuit via dielectrophoresis. Detailed electron transport investigations on 70 devices show that 99% display good FET behavior, with an average threshold voltage of 1 V, subthreshold swing as low as 140 mV/dec, and on/off current ratio as high as 8 × 105. The high yield directed assembly of local-gated SWNT-FET will facilitate large scale fabrication of CMOS (complementary metal–oxide–semiconductor) compatible nanoelectronic devices.
The Dynamic Alterations of H2AX Complex during DNA Repair Detected by a Proteomic Approach Reveal the Critical Roles of Ca2+/Calmodulin in the Ionizing Radiation-induced Cell Cycle Arrest*S

By using DNA nuclease digestion and a quantitative “dual tagging” proteomic approach that integrated mass spectrometry, stable isotope labeling, and affinity purification, we studied the histone H2AX-associating protein complex in chromatin in mammalian cells in response to ionizing radiation (IR). In the non-irradiated control cells, calmodulin (CaM) and the transcription elongation factor facilitates chromatin transcription (FACT) were associated with H2AX. Thirty minutes after exposing cells to IR the CaM and FACT complexes dissociated, whereas two DNA repair proteins, poly(ADP-ribose) polymerase-1 and DEAH box polypeptide 30 isoform 1, interacted with H2AX. Two hours and 30 min after exposure, none of the above proteins were in the complex. H2B, nucleophosmin/B23, and calreticulin were associated with H2AX in both non-irradiated and irradiated cells. The results suggest that the H2AX complex undergoes dynamic changes upon induction of DNA damage and during DNA repair. The genuine interactions between H2AX and H2B, nucleophosmin/B23, calreticulin, poly(ADP-ribose) polymerase-1, and CaM under each condition were validated by immunoprecipitation/Western blotting and mammalian two-hybrid assays. Because multiple Ca2+-binding proteins were found in the H2AX complex, the roles of Ca2+ were examined. The results indicate that Ca2+/CaM plays important roles in regulating IR-induced cell cycle arrest, possibly through mediating chromatin structure. The dataset presented here demonstrates that sensitive profiling of the dynamics of functional cellular protein-protein interactions can successfully lead to the dissection of important metabolic or signaling pathways.
Pattern recognition based on soft boundaries : a proposal applied to tree species identification from texture in trunk images

Plant taxonomy can be complex, time consuming, and impractical in the absence of leaves, fertile branches, flowers and fruits. Thus, species identification from texture in trunk images can be an alternative. However, patterns recognition with hard boundaries has caused low performance when samples have features belonging to more than one species. Therefore, a fuzzy approach was developed, aiming evaluate its performance in the identification of 11 tree species. Co-occurrence descriptors were extracted from grayscale images, and a principal component analysis was performed to avoid redundant information. Then, texture patterns were defined using soft boundaries by gaussian curve membership function. Moreover, we proposed a procedure to progressive addition of fuzzy patterns during the training, in order to improve performance. As a result, accuracy of 0.86 during hold-out validation was achieved. From these findings, we concluded that the fuzzy approach can be a promising strategy to species identification aided by computational intelligence.
Aloe vera L. processing and products: a review.

Use of Aloe vera in nutritional, pharmaceutical and cosmetic preparations draw attention for gener ation of scientific information. Looking to the importance of biologically active components possessed by the leaves of the Aloe vera plant and its wide spread use, it has become imperative that, the leaf should be pr ocessed with the aim of retaining essential bioactive components. In this review paper, different processing aspects like harvesting, handling , transporta- tion, Aloe vera gel expulsion, gel extraction and storage of gel were critically described from different references. Diffe r- ent product prepared from Aloe vera whole leaf and gel like food products Aloe juice, Aloe health drink, Aloe desert, et c were reviewed. Aloe vera processing methods for gel expulsion by splitting of leaf, roller method, crushing of whole leaf, hand filleting methods and stabilization are described with various references. Present processing techniques aims at pr o- ducing best quality aloe products but end aloe products contain very little or virtually no active ingredients. Hence, a p- propriate processing techniques should be employed during processing in order to extend the use of Aloe vera gel.
Stroke survivor and carer perspectives of the concept of recovery: a qualitative study

Purpose: This study was designed to explore the concept of recovery from the perspectives of stroke survivors and informal carers. The aim of this qualitative study was to identify the main factors that are perceived to contribute to recovery after stroke. Method: Data were obtained via focus groups using semistructured questionnaires. One focus group included all participants (n = 14). This was followed by separate focus groups for stroke survivors (n = 8) and informal carers (n = 6). The data from the three focus groups were analysed using thematic analysis, whereby themes and sub-themes were identified and summarised via dual coding. Results: The main theme identified was “individual recovery expectations”. The contributing sub-themes were: “essential elements of recovery”, “returning home” and “the environment of rehabilitation”. The predominant factors to arise from this study surround the concepts of “returning to normality” for the stroke survivor and the “tension of providing care” for informal carers. Conclusions: This study provides a current description of stroke survivor and carer expectations of recovery. There are diverse and ongoing concerns that can be encountered into the chronic phase poststroke. Models of community-based care should adopt targeted interventions that concurrently consider stroke survivor and carer’s individual concepts of recovery. Implications for Rehabilitation The concept of recovery can differ for stroke survivors, carers and the health professionals that they encounter. As it is an individual phenomenon, many factors comprise the notion of recovery. Health professionals need to explore stroke survivor and carer’s views about their concepts of recovery, as greater awareness and attention may maximise individual poststroke potential.
A survey on iterative learning control for nonlinear systems

In this article we review the recent advances in iterative learning control (ILC) for nonlinear dynamic systems. In the research field of ILC, two categories of system nonlinearities are considered, namely, the global Lipschitz continuous (GLC) functions and local Lipschitz continuous (LLC) functions. ILC for GLC systems is widely studied and analysed using contraction mapping approach, and the focus of recent exploration moves to application problems, though a number of theoretical issues remain open. ILC for LLC systems is currently a hot area and the recent research focuses on ILC design and analysis by means of Lyapunov approach. The objectives of this article are to introduce recent development and advances in nonlinear ILC schemes, highlight their effectiveness and limitations, as well as discuss the directions for further exploration of nonlinear ILC.
Atomic and Molecular Emission Lines from the Red Rectangle

HD 44179 is the binary, post-asymptotic giant branch, central star of the Red Rectangle Nebula. Echelle spectra of the star have been obtained over a wavelength range from about 3800 to 10000 Å at a resolving power R = 38,000. A maximum S/N of 850 was achieved near 6800 Å. Fifty-seven identified atomic or ionic emission lines of 12 elements are detected in the star's spectrum, along with 76 emission lines of CH, CH+, or CN. Three other CN lines are also present in absorption. Fewer than 30 of these 136 lines apparently have been previously reported, and the newly detected species include N II, Mg I, S II, K I, Fe I, Fe II, Rb I, Ba II, CH, and CN. On the basis of their shapes and widths, the line profiles of the various species can be classified into three groups: narrow, broad, or double-peaked. The emission apparently originates in an unusual, compact H II region and in associated neutral gas, both concentrated primarily within the small, dusty torus that optically obscures the central star. The detection of the Ba II emission from the gas may support the hypothesis of Waelkens et al. that HD 44179 is destined to become a barium star.
PHACOVITRECTOMY FOR PRIMARY RETINAL DETACHMENT REPAIR IN PRESBYOPES

Purpose: To review the results of phacovitrectomy for primary retinal detachment repair in presbyopes. Methods: The outcome and complications of surgery were examined in a retrospective case series of 93 presbyopic patients who underwent phacoemulsification and vitrectomy for primary rhegmatogenous retinal detachment. Results: Eighty-two patients (88.2%) had reattachment with a single procedure. The final reattachment rate with further procedures was 97.8%. Two patients (2.2%) in whom final reattachment did not occur declined further surgery after the primary repair. All redetachments were due to proliferative vitreoretinopathy. The median Snellen converted logMAR visual acuity improved from 1.00 preoperatively to 0.30 postoperatively (P < 0.001, Wilcoxon test). Postoperative complications included transient intraocular pressure rise (29%), fibrinous uveitis (16.2%), and iris/intraocular lens capture (8.6%). One of the eight patients with iris/intraocular lens capture required surgical reintervention. All cases of fibrinous uveitis and intraocular pressure rise resolved within a few days with medical treatment. Posterior capsular opacification occurred in 23 patients (24.7%). Conclusion: Combined surgery with phacoemulsification, lens extraction, and vitrectomy offers significant advantages to both patient and surgeon in the management of primary retinal detachment. We believe that it should be considered for presbyopes even in the absence of significant lens opacity. Fibrinous uveitis and intraocular pressure rise may occur in a few patients in the immediate postoperative period but are transient and resolve with medical treatment. Further prospective studies are required, in particular to examine the rate of postoperative proliferative vitreoretinopathy, which may be higher than with vitrectomy alone.
Dietary fat content modifies liver fat in overweight nondiabetic subjects.

BACKGROUND Fat accumulation in the liver has been shown to be closely correlated with hepatic insulin resistance and features of insulin resistance, even independent of body weight. The reason for interindividual variation in liver fat content is unknown. Cross-sectional data suggest that dietary fat content may influence liver fat, but this possibility has not been directly tested in humans. DESIGN AND METHODS Liver fat (proton spectroscopy), intraabdominal and sc fat (magnetic resonance imaging), and markers of insulin sensitivity (insulin, free fatty acids, and lipids) were determined in 10 normal, obese women (age, 43 +/- 5 yr, mean +/- sd; body mass index, 33 +/- 4 kg/m2; range, 27-38 kg/m2) at baseline and after two 2-wk isocaloric periods containing either 16% (low-fat diet) or 56% (high-fat diet) of total energy as fat. RESULTS Liver fat at baseline averaged 10 +/- 7%. It decreased by 20 +/- 9% during the low-fat diet and increased by 35 +/- 21% during the high-fat diet (P = 0.014 for liver fat after low- vs. high-fat diets; P = 0.042 for change in liver fat by the low- vs. high-fat diet). Fasting serum insulin averaged 70 +/- 41 pmol/liter at baseline. It decreased to 60 +/- 24 pmol/liter during the low-fat diet (P = 0.007 vs. before low-fat diet) and increased to 81 +/- 44 pmol/liter during the high-fat diet (P = 0.040 vs. before high-fat diet; P = 0.005 for change in serum insulin during low- vs. high-fat diet). Serum lipids, free fatty acids, and intraabdominal and sc fat masses were unchanged. CONCLUSION These data suggest that the amount of dietary fat influences liver fat content.
Double periodic CRLH transmission line for wideband performance

The symmetric unit cells of double periodic composite right/left handed transmission line (DP-CRLH TL) are proposed. The unit cells are analyzed based on the dispersion diagram and condition for closing of the attenuation gap at βd = 0 in the dispersion diagram is derived. A DP-CRLH unit cell is designed and its characteristics are validated experimentally.
Optimizing Melodic Extraction Algorithm for Jazz Guitar Recordings Using Genetic Algorithms

Extraction of the main melody of a musical piece is a preliminary step in the process of transcribing the piece. Automatic melodic extraction is the task of computationally extracting what a human listener would perceive as the main melody of a polyphonic recording. Several melodic extraction systems have been proposed. However, such systems normally require a number of parameters to be manually tuned in order to accurately perform melody extraction in different contexts, i.e. instruments combinations. In this study, we propose a methodology for automatically optimizing some relevant parameters of the extraction algorithm Melodia [1] using genetic algorithms. We simultaneously obtained both MIDI and audio recordings of jazz standards, and we collected commercial audio recordings extracted from jazz guitar CDs. Based on the MIDI recordings as ground truth, two different instrument settings are compared (Jazz trio and quartet), as well as different audio mixing of the melody with respect to the accompaniment track. We show that, compared to using the default parameters, the overall accuracy of the melody extraction with the optimized parameters is improved.
AFTER THE INTERACTION: AN EFFICIENTLY STAR-FORMING MOLECULAR DISK IN NGC 5195

We present new molecular gas maps of NGC 5195 (alternatively known as M51b) from the Combined Array for Research in Millimeter Astronomy, including 12CO(1–0), 13CO(1–0), CN(1 – ), CS(2–1), and 3 mm continuum. We also detected HCN(1–0) and HCO+(1–0) using the Onsala Space Observatory. NGC 5195 has a 12CO/13CO ratio ( = 11.4 ± 0.5) consistent with normal star-forming galaxies. The CN(1–0) intensity is higher than is seen in an average star-forming galaxy, possibly enhanced in the diffuse gas in photo-dissociation regions. Stellar template fitting of the nuclear spectrum of NGC 5195 shows two stellar populations: an 80% mass fraction of old (≳10 Gyr) and a 20% mass fraction of intermediate-aged (≈1 Gyr) stellar populations. This provides a constraint on the timescale over which NGC 5195 experienced enhanced star formation during its interaction with M51a. The average molecular gas depletion timescale in NGC 5195 is = 3.08 Gyr, a factor of larger than the depletion timescales in nearby star-forming galaxies, but consistent with the depletion seen in CO-detected early-type galaxies. While radio continuum emission at centimeter and millimeter wavelengths is present in the vicinity of the nucleus of NGC 5195, we find it is most likely associated with nuclear star formation rather than radio-loud AGN activity. Thus, despite having a substantial interaction with M51a ∼1/2 Gyr ago, the molecular gas in NGC 5195 has resettled and is currently forming stars at an efficiency consistent with settled early-type galaxies.
18 F-FDG-PET / CT in staging , recurrence detection and response evaluation of primary splenic lymphoma with eight years follow up

Primary splenic lymphomas (PSL) are rare malignancies which involve spleen with or without splenic hilar lymph nodes. Confirmation of diagnosis depends upon tissue sampling but noninvasive methods are useful in early diagnosis, treatment response monitoring and recurrence detection. Here we describe a case of PSL detected by 18F-FDG-PET/CT which was histopathologically proven to be diffuse large B-cell lymphoma (DLBCL) treated with CHOP regimen. 18F-FDG-PET/CT was found to be very useful in all stages (staging, recurrence detection and treatment response monitoring) of PSL with eight years of follow up. KEY words: primary splenic lymphoma, 18F-FDG, PET/CT, staging; response monitoring Nuclear Med Rev 2015; 18, 1: 37–38