Miracle-dz/UniFAR-FTUs huggingface dataset:
Antioxidants as Adjuvants in Periodontitis Treatment: A Systematic Review and Meta-Analysis

This systematic review with meta-analysis aimed to evaluate the effect of antioxidants as an adjuvant in periodontitis treatment. The following databases were consulted: PubMed, Scopus, Web of Science, Cochrane, Lilacs, OpenGrey, and Google Scholar. Based on the PICO strategy, the inclusion criteria comprised interventional studies including periodontitis patients (participants) treated with conventional therapy and antioxidants (intervention) compared to patients treated only with conventional therapy (control) where the periodontal response (outcome) was evaluated. The risk of bias was evaluated using the Cochrane RoB tool (for randomized studies) and ROBINS-I tool (for nonrandomized studies). Quantitative data were analyzed in five random effects meta-analyses considering the following periodontal parameters: clinical attachment loss (CAL), plaque index (PI), gingival index (GI), bleeding on probing (BOP), and probing depth (PD). After all, the level of certainty was measured with the Grading of Recommendation, Assessment, Development, and Evaluation (GRADE) tool. Among the 1884 studies identified, only 15 interventional studies were according to the eligibility criteria and they were included in our review. From them, 4 articles presented a high risk of bias. The meta-analysis showed a statistically significant difference for CAL (SMD 0.29 (0.04, 0.55), p = 0.03, I2 = 13%), PI (SMD 0.41 (0.18, 0.64), p = 0.0005, I2 = 47%), and BOP (SMD 0.55 (0.27, 0.83), p = 0.0001, I2 = 0%). The GRADE tool showed a moderate to high certainty in the quality of evidence depending on the clinical parameter and antioxidants used. These results suggest that the use of antioxidants is an adjunct approach to nonsurgical periodontal therapy which may be helpful in controlling the periodontal status.
BIOLOGICALLY INSPIRED MICROROBOTICS

The locomotion of microorganisms in low Reynolds number regimes has inspired engineers to design and fabricate robotic systems at microand nanoscales. Here, we review the swimming at low Reynolds number and analyze the kinematic reversibility property and the scallop theorem theoretically and experimentally. First, we present dynamical models for the planar flagellar and helical flagellar swimming of microorganisms. Second, we study the realization of microrobotic systems based on the mentioned locomotion mechanisms at microand nano-scales using fabrication based on nano-technology. Finally, the locomotion mechanisms of the biologically-inspired microrobotic systems are experimentally investigated using electromagnetic and magnetic systems.
A posteriori error bounds for discrete balanced truncation

Balanced truncation of discrete linear time-invariant systems is an automatic method once an error tolerance is specified and it yields an a priori error bound, which is why it is widely used in engineering for simulation and control. We derive a discrete version of Antoulas’s H2-norm error formula and show how to adapt it to some special cases. We present an a posteriori computable upper bound for the H2-norm of the error system defined as the system whose transfer function corresponds to the difference between the transfer function of the original system and the transfer function of the reduced system. We also present a generalization of the H2-norm error formula to any projection of dynamics method. The main advantage of our results is that we use the information already available in the model reduction algorithm in order to compute the H2norm instead of computing a new Gramian of the corresponding error system, which is computationally expensive. The a posteriori bound gives insight into the quality of the reduced system and it can be used to solve many problems accompanying the order reduction operation. Moreover, it is often more accurate in floating point arithmetic.
Real-time evacuation route selection method for complex buildings

This paper proposes a new real-time decision method to select optimal evacuation routes. The mathematical formulation, the solution algorithm and the computer model are presented. The optimization algorithm is based on the stochastic evacuation model predictions by considering emergency data such as the location of the hazard. The method was applied to an industrial building. The stochastic evacuation model was compared with the commercial evacuation model STEPS involving 14 potential evacuation routes and the computational model was applied to 10 hypothetical emergency scenarios to demonstrate its validity.
Observation of the h_c(1P) Using e^+e^- Collisions Above DDbar Threshold

Using 586 pb of ee collision data at ECM = 4170 MeV, produced at the CESR collider and collected with the CLEO-c detector, we observe the process ee → ππhc(1P ). We measure its cross section to be 15.6 ± 2.3 ± 1.9 ± 3.0 pb, where the third error is due to the external uncertainty on the branching fraction of ψ(2S) → πhc(1P ), which we use for normalization. We also find evidence for ee → ηhc(1P ) at 4170 MeV at the 3σ level, and see hints of a rise in the ee → ππhc(1P ) cross section at 4260 MeV.
Sentiments Analysis for Governor of East Java 2018 in Twitter

East Java Governor Election 2018 is also felt in the virtual world especially Twitter social media. All people freely argue about their respective governor candidates, the memorandum raises many opinions, not only positive or neutral but also negative opinions. Media growth is so rapid, revealing a lot of online media from the news media to social media. Social media alone is Facebook, Twitter, Path, Instagram, Google+, Tumblr, Linkedin and many more. Today's social media is not only used as a means of friendship or making friends, but also for other activities. Promos of trading or buying and selling, until political party promos or campaigns of candidates for regents, governors, legislative candidates until presidential candidates. The research objective is to conduct a Method with Data Prepocessing Selection comments, Cleansing, Parsing, Normalizing, Tokeninzing, Load Dictionary, Weighting and Classification of analyzing the sentiments of 2018 East Java Governor candidates on Twitter social media with optimal and maximum optimization. While the benefits are to help the community conduct research on opinions on twitter which contains positive, neutral or negative sentiments. Analysis of the sentiments of East Java Governor candidates in 2018 on twitter social media using non-conventional processes that save costs, time and effort. The results of Khofifah's dataset are 77% accuracy, 79.2% precision value, 77% recall value, 98.6% TP rate and 22.2% TN rate. For the results of Gus dataset, the accuracy is 76%, the precision value is 74.4%, the recall value is 76%, the TP rate is 93.8% and the TN rate is 52.9%. Keywords—sentiment analysis, governor, lexicon based features, naïve bayes classifier
Purification , Characterization , and Partial Primary Sequence of a Major-Maltotriose-producing α-Amylase , ScAmy 43 , from Sclerotinia sclerotiorum

1Institut National des Sciences Appliquées et de Technologie (INSAT), Centre Urbain Nord 676-1080 Tunis Cedex, Tunisia 2LMBA, UMR 5248 CNRS-U. Bordeaux 1-ENITAB, 1 cours du Général de Gaulle, 33140 Gradignan, France 3Centre de Biotechnologie, Technopole Borj Cédria (CBBC), BP 109-2050 Hammam-Lif Cedex, Tunisia 4Institut Européen de Chimie et Biologie (IECB), UMR 5248 CNRS-U. Bordeaux 1-ENITAB, 2 rue Robert Escarpit, 33607 Pessac Cedex, France 5Laboratoire de Chimie des Substances Naturelles, EA 1069, Antenne Institut Universitaire de Technologie, Allée André Maurois 87065 Limoges Cedex, France
Simple nonlinear control of quadcopter for collision avoidance based on geometric approach in static environment

A simple, robust nonlinear controller for quadcopters to avoid collisions, based on the geometry approach and kinematics equation, is proposed. The controller allows the quadcopter to avoid single and multiple obstacles. Once an obstacle with a high possibility of collision is detected, a boundary sphere of the obstacle is generated to determine the collision zone. Afterward, the tracking error angles between the quadcopter’s motion direction and the tangential lines from the quadcopter’s current position to the boundary sphere are computed to steer the direction of the quadcopter for collision avoidance. A guidance law and a velocity control law are obtained from the Lyapunov stability based on the tracking error angles and relative distances between vehicle and obstacles. In addition, a method to drive the quadcopter to the target position after the completion of collision avoidance is introduced. The effectiveness of the proposed collision-avoidance algorithm is demonstrated through the result of a numerical simulation.
Brazilian consensus on non-cystic fibrosis bronchiectasis

ABSTRACT Bronchiectasis is a condition that has been increasingly diagnosed by chest HRCT. In the literature, bronchiectasis is divided into bronchiectasis secondary to cystic fibrosis and bronchiectasis not associated with cystic fibrosis, which is termed non-cystic fibrosis bronchiectasis. Many causes can lead to the development of bronchiectasis, and patients usually have chronic airway symptoms, recurrent infections, and CT abnormalities consistent with the condition. The first international guideline on the diagnosis and treatment of non-cystic fibrosis bronchiectasis was published in 2010. In Brazil, this is the first review document aimed at systematizing the knowledge that has been accumulated on the subject to date. Because there is insufficient evidence on which to base recommendations for various treatment topics, here the decision was made to prepare an expert consensus document. The Brazilian Thoracic Association Committee on Respiratory Infections summoned 10 pulmonologists with expertise in bronchiectasis in Brazil to conduct a critical assessment of the available scientific evidence and international guidelines, as well as to identify aspects that are relevant to the understanding of the heterogeneity of bronchiectasis and to its diagnostic and therapeutic management. Five broad topics were established (pathophysiology, diagnosis, monitoring of stable patients, treatment of stable patients, and management of exacerbations). After this subdivision, the topics were distributed among the authors, who conducted a nonsystematic review of the literature, giving priority to major publications in the specific areas, including original articles, review articles, and systematic reviews. The authors reviewed and commented on all topics, producing a single final document that was approved by consensus.
TERMINOLOGICAL AND LEXICAL RESOURCES USED TO PROVIDE OPEN MULTILINGUAL EDUCATIONAL RESOURCES

Open educational resources (OER) within BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) network will be available in different languages, mostly in the languages of Western Balkans, Russian and English. University of Belgrade (UB) hosts a central repository based on: BAEKTEL Metadata Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX platform. In order to successfully cope with multilingualism within the network, especially where terminology is concerned, a language support system is developed within the BAEKTEL metadata portal. In this paper we will describe the linguistic component of the system, the resources and tools used as an educational system as a whole and to improve the visibility of resources in the Internet. This component consists of morphological dictionaries, WordNet, domain specific terminological resources such as GeolISSterm, RudOnto, aligned texts in TMX format, corpora etc. Special attention will be given to Termi, newly developed application for terminology management.
Reynolds' Turbulence Solution

The study found an error in current literature, including numerous textbooks, about the number of independent unknowns in the Reynolds stress tensor and/or in Reynolds-averaged Navier-Stokes equations (RANS). Current literature claims that the Reynolds stress tensor has six unknowns; however, this article shows that the Reynolds stress tensor only has independent three unknowns, which are functions of the three components of fluctuation velocity. This research discovers that the misconception about the number of independent unknowns in the RANS could stem from misinterpreting the Reynolds stress tensor. The misconception has hampered the development of turbulence for longtime. In order to find a way out of this difficult situation, we return to the time of Reynolds in 1895 and revisit Reynolds' averaging formulation of turbulence. The present investigation can be considered as a renaissance of Reynolds' work in 1895, which might shed light on the well-known closure problem of turbulence, and help to understand the puzzle of the turbulence closure problem that has eluded scientists and mathematicians for more than a century.
What Concerns Do Client Developers Have When Using Web APIs ? An Empirical Study of Developer Forums and Stack Overflow

Popularity of service-oriented computing makes more and more companies and organizations provide their services through Web Application Program Interfaces (Web APIs). The Web APIs are considered to offer a convenient way to integrate web services to client applications. However, the integration process is often challenging. For example, updated Web APIs may be no longer compatible with the current version of client applications, thus break the client applications. To help the integration process, it is of significant interest to understand the challenges that are encountered by client developers. Developer forums and Stack Overflow are commonly used by client developers to seek help from fellow peers. In this paper, we mine both developer forums and Stack Overflow to find the common challenges encountered by client developers. We perform an empirical study on 32 Web APIs with a total of 92,471 discussions. To extract topics from all discussions, we apply a topic modeling technique called Latent Dirichlet Allocation (LDA). The results show that on average five dominant topics can cover at least 50% of questions regarding each Web API. We further investigate how topics evolve across Web APIs, and find five patterns. As a summary, our findings highlight a list of dominant concerns and persistent concerns for each Web API that Web API providers should pay more attention to. Keywords-Developer forum; Stack Overflow; Web API; Topic modeling; Client developer discussions; Crowd-sourced forum
Finite element modeling of the ITER superconducting cables mechanical behaviour using LS-DYNA code

Superconducting cables are one of the key technical solutions used for generation of strong magnetic field in modern tokamaks. It is very important for engineers to be able to predict the mechanical deformations of superconducting cables because superconductivity depends on strains, temperature and magnetic field. Superconducting cables for ITER the International Thermonuclear Experimental Reactor Department of Structural and Transportation Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy
A Frequency Approach to Bayesian Asymptotics

Ergodic theorem shows that ergodic averages of the posterior draws converge in probability to the posterior mean under the stationarity assumption. The literature also shows that the posterior distribution is asymptotically normal when the sample size of the original data considered goes to infinity. To the best of our knowledge, there is little discussion on the large sample behaviour of the posterior mean. In this paper, we aim to fill this gap. In particular, we extend the posterior mean idea to the conditional mean case, which is conditioning on a given summary statistic of the original data. We establish a new asymptotic theory for the conditional mean estimator for the case when both the sample size of the original data concerned and the number of Markov chain Monte Carlo iterations go to infinity. Simulation studies show that this conditional mean estimator has very good finite sample performance. In addition, we employ the conditional mean estimator to estimate a GARCH(1,1) model for S&P 500 stock returns and find that the conditional mean estimator performs better than quasi–maximum likelihood estimation in terms of out–of–sample forecasting.
Global Synchronization of Complex Dynamical Networks with Internal Delay and Distributed-Delay Coupling via Aperiodically Intermittent Control

Abstract: In this paper, the global synchronization problem for a class of complex dynamical networks with internal delay and distributed-delay coupling is investigated via aperiodically intermittent control. The network topology is assumed to be directed. Based on the reduction to absurdity and mathematical induction method, some sufficient conditions to guarantee global synchronization are derived analytically. Different from previous works, the control type here is aperiodic intermittent with changeable control period, which expands the scope of practical applications of intermittent control strategy. Finally, a numerical example is provided to demonstrate the effectiveness of the theoretical results.
Effect of O 3 and CO 2 Levels on Growth , Biochemical and Nutrient Parameters of Alfalfa ( Medicago sativa )

The effects of elevated levels (40, 80 and 120 ppb) of ozone and elevated levels (350, 400 and 450 ppb) of carbon dioxide, alone and in combination, were studied on the germinated young tree seedling of Medicago sativa. Parameters related to growth, biochemical and leaf nutrient parameters were measured using standard methods. The results showed that elevated CO2 has an ameliorative effect on the growth of Alfalfa with increased performance in parameters related to production function of the plant. Ozone to the contrary known for its oxidative property induced and changed significantly the photosynthetic nature of the plant. Decrease in chlorophylls content as a commonly regarded biochemical damage symptom was observed in all the levels of O3 treatment. The combine treatment like similar works done in this area revealed that enrichment effect by CO2 seems to contribute to the protection against the O3 induced oxidation. The treatment effects on the leaf nutritional parameters are also evident though statistically not significant. © 2013 Published by Elsevier B.V. Selection and/or peer review under responsibility of Asia-Pacific Chemical, Biological & Environmental Engineering Society
The Identification of Competitive Strategy based on Palepu Assumptions : A Mathematical Derivation Perspective

According to the prior research, we firstly establish an asymmetric Bowley utility function for the cost leadership firms as well as the differentiation firms. Secondly, we apply Bertrand model to deal with the Nash equilibrium for these firms pursing cost leadership or differentiation strategies. Thirdly, subsequently utilizing the price elasticity of demand hypothesis and equilibrium performance condition of competitive strategies, we confirm that Palepu assumptions can be used as strategy identity indicators by mathematical verifications. Finally, we propose a summary of suggestions for future theoretical researches of Palepu assumptions. Keywordspalepu assumptions; competitive strategy; bertrand equilibrium
Human body modeling for engineering design Modelowanie ciała człowieka na potrzeby projektowania inżynierskiego

When designing devices directly cooperating with humans, different models of the human body are used to develop an ergonomic workplace. These models are most often developed on based on anthropometric atlases containing a number of statistical data concerning a particular population, such as the dimensions of individual parts of the human body and their mass and range of motion [1]. The figures given relate most frequently to three representative models of the human body: 5c, 50c and 95c. The symbol 5c is the five-pentyl model. Centyl (percentile) is a statistical unit that describes the position of the result relative to the whole group. In the case of anthropometric features, model 5c says that 5% of the subjects had dimensions of individual body parts smaller than the model shown. Some CAx systems contain a module with implemented anthropometric data. One example is the Ergonomics Design & Analysis module of the CATIA program. With its help, a model of a manikin or a mannequin from one of several available populations and with a specific percentile value can be imported into a device design. Thanks to this, you can specify the dimensions of the designed device, the user's working space or the scope of view. In the case of designing some devices, such as armchairs, comfort of use is very important. Many psychophysical factors affect its level. Literature defines the relationship between comfort and usable parameters. Vibrations and pressure distribution are two mechanical parameters that are closely related to comfort [2]. In this work, the problem of pressure has been raised. Excessive and long-lasting pressure can cause skin changes, sometimes leading to pressure sores. Therefore, minimizing pressure is extremely important.
Developing an Adaptive User Interface in Eclipse

The usability of user interfaces is often neglected in the design and development of software applications. The Eclipse Integrated Development Environment (IDE) is especially prone to poor usability problems due to the rich functionality introduced by the additions of external plug-ins and Eclipse’s board target user base (from novice to expert developers). To improve the usability of Eclipse’s user interface, we propose an Adaptive User Interface (AUI) architecture which modifies the existing Eclipse menu system based on statistical user interaction patterns with the user interface. Specifically, the AUI hides infrequently used menu elements, and predicts the next menu elements that a user is likely to click. Moreover, we develop adaptive algorithms that perform a cost-benefit analysis for making modifications to the menus system, and determine the optimal changes to make. A prototype AUI is developed as an Eclipse plug-in. Through an initial case study, we demonstrate the enhancement to the current Eclipse menu system using our Adaptive User Interface.