Miracle-dz/UniFAR-FTUs huggingface dataset:
Effective Management of Periodontal Intraosseous Defects using combination of Bioactive Glass + Platelet-rich Fibrin : A Clinical and Radiographic Evaluation

Periodontitis is an infectious disease which causes loss of periodontal supportive tissue, and ultimately tooth loss. Regeneration of lost periodontal tissues is the chief goal of the periodontal therapies. Application of various bone grafts with and without combination of other materials/techniques has been shown improvement in clinical outcomes. Platelet rich fibrin (PRF) is a second generation platelet concentrate which releases growth factors, promoting regeneration. In the literature the combination of PRF and bioactive glass is been explored extensively. Hereby we present and discuss the successful management of periodontal intraosseous defects in two case reports by placement of combination of PRF and bioactive glass. There was significant clinical and radiographic outcomes in both the cases after one year of follow-up.
A T ] 1 1 O ct 2 01 8 Algebraic deformation quantization of Leibniz algebras

In this paper we focus on a certain self-distributive multiplication on coalgebras, which leads to so-called rack bialgebra. We construct canonical rack bialgebras (some kind of enveloping algebras) for any Leibniz algebra. Our motivation is deformation quantization of Leibniz algebras in the sense of [6]. Namely, the canonical rack bialgebras we have constructed for any Leibniz algebra lead to a simple explicit formula of the rackstar-product on the dual of a Leibniz algebra recently constructed by Dherin and Wagemann in [6]. We clarify this framework setting up a general deformation theory for rack bialgebras and show that the rackstar-product turns out to be a deformation of the trivial rack bialgebra product. Introduction The algebraic structures involved in Leibniz deformation quantization Recall that a pointed rack (see [8]) is a pointed set (X, e) together with a binary operation ⊲ : X×X → X such that for all x ∈ X , the map y 7→ x⊲y is bijective and such that for all x, y, z ∈ X , the self-distributivity and unit relations x⊲ (y ⊲ z) = (x⊲ y)⊲ (x ⊲ z), e ⊲ x = x, and x ⊲ e = e Char.Alexandre@gmail.com Martin.Bordemann@uha.fr salim.riviere@univ-angers.fr wagemann@math.univ-nantes.fr
Improvement of the cardiorespiratory endurance, perception of the effort and walking performance of the old people of the hospice Saint Marc of Kingasani by the practice of the adapted physical activities

Objective: To verify the effects of functional rehabilitation associated with a program of physical activities adapted to the biomechanical parameters and perception of the effort of the elderly. Methods: A longitudinal experimental study of 30 elderly people living in the old people's home was conducted during a 6-month period from July 2017 to January 2018. It consisted in evaluating the biomechanical parameters and perception of the effort of older people a functional rehabilitation program associated with the practice of adapted physical activities.The parametric t test of student was used to compare the averages of different parameters of study before and after the intervention program.The statistical test results used were interpreted at the p <0.05 significance level for statistical decision making. Results: After 6 months of intervention, the elderly significantly improved their biomechanical parameters: balance ( p = 0.002), rate ( p < 0.01), walking speed ( p = 0.03), strength and muscular strength of the limbs lower ( p = 0.041), perception with effort ( p = 0.03). This program also allowed them to reduce their risk of falling ( p = 0.057) and to increase their motor autonomy ( p = 0.003). Conclusion: This study shows that a biomechanical evaluation associated with functional rehabilitation improves the balance and motor autonomy of the elderly, which leads to an improvement in their quality of life.
Deep Chandra observations of Pictor A

We report on deep Chandra observations of the nearby broad-line radio galaxy Pictor A, which we combine with new Australia Telescope Compact Array (ATCA) observations. The new X-ray data have a factor of 4 more exposure than observations previously presented and span a 15 yr time baseline, allowing a detailed study of the spatial, temporal and spectral properties of the AGN, jet, hotspot and lobes. We present evidence for further time variation of the jet, though the flare that we reported in previous work remains the most significantly detected time-varying feature. We also confirm previous tentative evidence for a faint counterjet. Based on the radio through X-ray spectrum of the jet and its detailed spatial structure, and on the properties of the counterjet, we argue that inverse-Compton models can be conclusively rejected, and propose that the X-ray emission from the jet is synchrotron emission from particles accelerated in the boundary layer of a relativistic jet. For the first time, we find evidence that the bright western hotspot is also time-varying in X-rays, and we connect this to the small-scale structure in the hotspot seen in high-resolution radio observations. The new data allow us to confirm that the spectrum of the lobes is in good agreement with the predictions of an inverse-Compton model and we show that the data favour models in which the filaments seen in the radio images are predominantly the result of spatial variation of magnetic fields in the presence of a relatively uniform electron distribution.
Destruction of Fluorinated Greenhouse Gases by Using Nonthermal Plasma Process

Most of fluorinated compounds such as hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulfur hexafluoride (SF6) are considered as significant greenhouse gases due to their chemical stability, long atmospheric lifetimes, and high infrared absorption capacity. The 100-year global warming potentials (GWPs) of them are reported to be from a few thousand times to tens of thousand times that of carbon dioxide (CO2). Fluorinated compounds have been widely used in semiconductor and polymer industries, commercial refrigeration and air conditioning. SF6 that is the most potent greenhouse gas with a GWP of 22,200 has been used as a common gaseous dielectric medium in electrical power equipments and in the etching and cleaning processes of the semiconductor industry. Up to now, several technologies for abating such gaseous fluorinated compounds have been developed, which include incineration, catalytic decomposition, thermal or nonthermal plasma destruction, and so forth (Bickle et al., 1994; Futamura & Yamamoto, 1997; Lee & Choi, 2004; Ogata et al., 2004; Foglein et al., 2005; Mizeraczyk et al., 2005). Even though the incineration is the only field-proven technology so far, it necessarily requires a lot of energy and long preheating time to reach high temperature enough to destroy chemical bonds in fluorinated compounds. The use of catalyst can largely lower the operation temperature, but still high temperature above 700oC is needed to achieve sufficient catalytic activity. The application of thermal or nonthermal plasma to the destruction of fluorinated compounds as an emission control technology is a relatively new research area. Previous studies have shown that low-pressure plasma processes like inductively coupled plasma (ICP) can destroy fluorinated compounds effectively (Kuroki et al., 2005). However, they inevitably require high investment and operation cost for vacuum. For this reason, atmospheric nonthermal plasma systems can be more desirable from a practical point of view. The non-thermal plasma has been created in different plasma reactors such as microwave, pulsed streamer corona and dielectric barrier discharge (DBD) reactors, offering an innovative approach for the abatement of fluorinated compounds. The pulsed corona discharge is induced by the application of fast-rising narrow high voltage pulse to nonuniform electrode geometry (Mok et al., 1998). It develops by forming a number of streamers, the starting points of which are discrete and distributed over the surface of discharging electrode. Free electrons produced by the discharge can be accelerated by an imposed electric field to gain energy. During their drift, they can collide with various molecules and lose energy. The collisions of energetic electrons with gas molecules result in the formation of various reactive species. The DBD is a kind of gaseous electrical discharge
Logic Error Detection Algorithm for Novice Programmers based on Structure Pattern and Error Degree

In recent years, the importance of programming skills is increasing due to advances in information and communication technologies. However, the difficulty involved in learning programming is a major problem for novices. Therefore, we propose a logic error detection algorithm based on structure pattern and error degree. Structure pattern is an index of similarity based on abstract syntax trees, and error degree is a measure of appropriateness for feedback. In the present paper, we define structure pattern and error degree and present the proposed algorithm method. Implementation and experimentation using actual data are also considered.
Educational commitment and social networking: The power of informal networks

The lack of an engaging pedagogy and the highly competitive atmosphere in introductory science courses tend to discourage students from pursuing science, technology, engineering, and mathematics (STEM) majors. Once in a STEM field, academic and social integration has been long thought to be important for students' persistence. Yet, it is rarely investigated. In particular, the relative impact of in-class and out-of-class interactions remains an open issue. Here, we demonstrate that, surprisingly, for students whose grades fall in the "middle of the pack," the out-of-class network is the most significant predictor of persistence. To do so, we use logistic regression combined with Akaike's information criterion to assess in- and out-of-class networks, grades, and other factors. For students with grades at the very top (and bottom), final grade, unsurprisingly, is the best predictor of persistence---these students are likely already committed (or simply restricted from continuing) so they persist (or drop out). For intermediate grades, though, only out-of-class closeness---a measure of one's immersion in the network---helps predict persistence. This does not negate the need for in-class ties. However, it suggests that, in this cohort, only students that get past the convenient in-class interactions and start forming strong bonds outside of class are or become committed to their studies. Since many students are lost through attrition, our results suggest practical routes for increasing students' persistence in STEM majors.
Explanatory Models in the Processing of Science Text: The Role of Prior Knowledge Activation Through Small-Group Discussion

Two experiments assessed effects of activation of prior knowledge through small-group discussion. Subjects were given a description of natural phenomena and were asked to elaborate on possible explanations for them. In Experiment 1, small groups of subjects were presented with a problem describing the behavior of a blood cell in pure water and in a salt solution. No additional text was studied. The experimental subjects produced more than twice as many propositions about osmosis (i.e. the biological process explaining the blood cell's behavior) as a control group produced. Experiment 2 investigated effects of problem analysis on subsequent text processing for subjects with imprecise prior knowledge (novices) and subjects with precise knowledge (experts). Recall of the text showed considerable facilitative effects of problem analysis. Results are explained in terms of faster accessibility of prior knowledge and better integration of new information into explanatory models that may exist before, or are actively constructed during, problem analysis. Attempts to understand the physical world involve the use of cognitive structures that represent mechanisms or principles underlying the phenomena observed. These cognitions may vary from highly sophisticated to quite naive. They may emerge as the result of formal education but often are constructed "spontaneously" while a person is experiencing the phenomena concerned. Take thunder and lightning. By scientists, this natural phenomenon is interpreted in terms of large differences in electrical potential between clouds charged with static electricity and the earth. Young children however, generally favor explanations involving the clash of clouds, and in earlier centuries thunder was attributed to the rage of the gods. These naive "mental models" are, like the models of science, not merely descriptive of what is going on in the outer world. They are truly "explanatory," because they clarify why the world is as it is. In addition, these conceptions can be considered models because they usually consist of a set of concepts connected by causal links that help to interpret the phenomena concerned in terms of the underlying structure of these phenomena (Clement, 1979; Gentner & Stevens, 1983).
Constraints on instantaneous ozone production rates and regimes during DOMINO derived using in-situ OH reactivity measurements

Abstract. In this study air masses are characterized in terms of their total OH reactivity which is a robust measure of the "reactive air pollutant loading". The measurements were performed during the DOMINO campaign (Diel Oxidant Mechanisms In relation to Nitrogen Oxides) held from 21/11/2008 to 08/12/2008 at the Atmospheric Sounding Station – El Arenosillo (37.1° N–6.7° W, 40 m a.s.l.). The site was frequently impacted by marine air masses (arriving at the site from the southerly sector) and air masses from the cities of Huelva (located NW of the site), Seville and Madrid (located NNE of the site). OH reactivity values showed strong wind sector dependence. North eastern "continental" air masses were characterized by the highest OH reactivities (average: 31.4 ± 4.5 s−1; range of average diel values: 21.3–40.5 s−1), followed by north western "industrial" air masses (average: 13.8 ± 4.4 s−1; range of average diel values: 7–23.4 s−1) and marine air masses (average: 6.3 ± 6.6 s−1; range of average diel values: below detection limit −21.7 s−1), respectively. The average OH reactivity for the entire campaign period was ~18 s−1 and no pronounced variation was discernible in the diel profiles with the exception of relatively high values from 09:00 to 11:00 UTC on occasions when air masses arrived from the north western and southern wind sectors. The measured OH reactivity was used to constrain both diel instantaneous ozone production potential rates and regimes. Gross ozone production rates at the site were generally limited by the availability of NOx with peak values of around 20 ppbV O3 h−1. Using the OH reactivity based approach, derived ozone production rates indicate that if NOx would no longer be the limiting factor in air masses arriving from the continental north eastern sector, peak ozone production rates could double. We suggest that the new combined approach of in-situ fast measurements of OH reactivity, nitrogen oxides and peroxy radicals for constraining instantaneous ozone production rates, could significantly improve analyses of upwind point sources and their impact on regional ozone levels.
Investigating teachers' educational beliefs in Chinese primary schools: socioeconomic and geographical perspectives

This empirical study explores the nature of and profiles in primary teachers' educational beliefs in the Chinese educational settings. A survey of 820 primary school teachers was conducted using a questionnaire focusing on teachers' traditional and constructivist beliefs about teaching and learning. Analysis of variance and cluster analysis were applied. Results show that gender and subject domain affect traditional educational beliefs. Significant differences appear considering economic and geographical context variables. Cluster analysis helps to delineate four teacher belief profiles: a constructivist profile, a mixed constructivist/traditional profile, a traditional profile, and a mixed low constructivist/traditional profile. Inter-relation between teacher belief profiles and school categories are discussed.
Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard?

Abstract. The climate impact of black carbon (BC) is notably amplified in the Arctic by its deposition, which causes albedo decrease and subsequent earlier snow and ice spring melt. To comprehensively assess the climate impact of BC in the Arctic, information on both atmospheric BC concentrations and deposition is essential. Currently, Arctic BC deposition data are very scarce, while atmospheric BC concentrations have been shown to generally decrease since the 1990s. However, a 300-year Svalbard ice core showed a distinct increase in EC (elemental carbon, proxy for BC) deposition from 1970 to 2004 contradicting atmospheric measurements and modelling studies. Here, our objective was to decipher whether this increase has continued in the 21st century and to investigate the drivers of the observed EC deposition trends. For this, a shallow firn core was collected from the same Svalbard glacier, and a regional-to-meso-scale chemical transport model (SILAM) was run from 1980 to 2015. The ice and firn core data indicate peaking EC deposition values at the end of the 1990s and lower values thereafter. The modelled BC deposition results generally support the observed glacier EC variations. However, the ice and firn core results clearly deviate from both measured and modelled atmospheric BC concentration trends, and the modelled BC deposition trend shows variations seemingly independent from BC emission or atmospheric BC concentration trends. Furthermore, according to the model ca. 99 % BC mass is wet-deposited at this Svalbard glacier, indicating that meteorological processes such as precipitation and scavenging efficiency have most likely a stronger influence on the BC deposition trend than BC emission or atmospheric concentration trends. BC emission source sectors contribute differently to the modelled atmospheric BC concentrations and BC deposition, which further supports our conclusion that different processes affect atmospheric BC concentration and deposition trends. Consequently, Arctic BC deposition trends should not directly be inferred based on atmospheric BC measurements, and more observational BC deposition data are required to assess the climate impact of BC in Arctic snow.
Morpho-physiological and Biochemical Responses of Camelina (Camelina sativa crantz) Genotypes under Drought Stress

Camelina (Camelina sativa) a member of mustard family is being introduced as an alternate oilseed crop. Camelina is disease resistant, low input requiring crop with a short life cycle (80‒100 days). The purpose of this study was to assess the response of camelina genotypes for seedling growth, gas exchange traits and some biochemical attributes under drought stress. Plants of two different camelina genotypes (7126 and 8046) were grown in pots maintained with four drought stress levels i.e., control (100% FC) and water stress (80, 60 and 40% FC). Drought stress significantly decreased shoot and root length, shoot and root fresh weight and their dry weights, photosynthetic rate (Pn), stomatal conductance (gs), transpiration rate (E) and soluble proteins while free proline, soluble sugars and amino acid content increased in both camelina genotypes. Genotype 7126 showed better response regarding seedling traits, gas exchange traits and had higher accumulation of free proline, soluble sugars, amino acids and soluble proteins as compared to genotype 8046 at all drought stress levels. The results suggested that the drought tolerance potential of camelina is positively associated with the regulation of gas exchange characteristics and accumulation of osmoprotectants. © 2017 Friends Science Publishers
Synergic effect within n-type inorganic–p-type organic nano-hybrids in gas sensors

This paper describes the exploration of a synergic effect within n-type inorganic–p-type organic nanohybrids in gas sensors. One-dimensional (1D) n-type SnO2–p-type PPy composite nanofibers were prepared by combining the electrospinning and polymerization techniques, and taken as models to explore the synergic effect during the sensing measurement. Outstanding sensing performances, such as large responses and low detection limits (20 ppb for ammonia) were obtained. A plausible mechanism for the synergic effect was established by introducing p–n junction theory to the systems. Moreover, interfacial metal (Ag) nanoparticles were introduced into the n-type SnO2–p-type PPy nano-hybrids to further supplement and verify our theory. The generality of this mechanism was further verified using TiO2–PPy and TiO2–Au–PPy nano-hybrids. We believe that our results can construct a powerful platform to better understand the relationship between the microstructures and their gas sensing performances.
Time-courses in the retention of food material in the bivalves Potamocorbula amurensis and Macoma balthica : significance to the absorption of carbon and chromium

Time courses for ingest~on, retention and release via feces of microbial food was investigated using 2 b~valves w ~ t h d~fferent feeding strategies, Potamocorbula amurensis and Macoma balthica. The results showed 2 pathways for the uptake of food material in these clams. The first is represented by an initlal label pulse in the feces. The second pathway operates over longer time periods. Inert "Cr-labeled beads were used to determine time frames for these pathways. The first pathway, involving extracellular digestion and intestinal uptake, is relatively inefficient In the digestion of bacter~al cells by P amurensis but more efficient in M. balthica. The second pathway, involving intracellular digestion withln the digestive gland of both clams, was highly efficient in absorb~ng bacterial carbon, and was responsible for most chromium uptake. Differences in the overall retention of microbial "Cr and I4C relate not to gut-passage times but to the processing and release strategies of the food material by these 2 clams.
Participation motives in leisure center physical activities

This study examined whether participation motives in leisure center physical activities differ at three times of the day. A total of 450 adults, participating in Nottingham (UK) city councilmanaged leisure center activities, completed the Participation Motives Inventory (Gill, Gross, & Huddleston, 1983). An equal number of participants were tested in the morning (9-13 h), in the afternoon (13-17 h), and in the evening (17 -21 h). A factor analysis resulted in eight factors (motives): Team Orientation, Fitness Orientation, Achievement Orientation, Extrinsic Factors, Miscellaneous, Avoidance of Boredom, Popularity, and Self-Improvement. The afternoon sample did not differ on any of these motives from the morning and evening samples. The latter two, however, did differ on Achievement Orientation and Extrinsic Factor that were rated higher by the morning than the evening participants, whereas the evening participants rated SelfImprovement higher than the morning sample. These results warrant further systematic research to address some of the different participation motives of people attending leisure centers at different times of the day.