Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of laminate veneer designs on abfraction incidence using different loading conditions “finite element analysis”

Statement of problem: Abfraction incidence is usually challenging and difficult to be identified accurately, especially, in case of existing restoration. Aim of the study: This study aimed to evaluate the influence of laminate veneer design on abfraction incidence in maxillary central incisor with different loading protocols using finite element analysis. Materials and methods: Maxillary central incisor was subjected to Computerized tomography (CT) scan to obtain 3D finite element model. Tooth without restoration (control) was subjected to a load of 100 N at 60° and 125°, the same load was applied with the previous directions on the tooth model with lithium disilicate laminate veneer using three preparation designs: veneer is taken up to the incisal edge level but the edge, is not reduced (Feather) (FP), design (FP) is prepared with 0.5mm incisal reduction without palatal overlapping (Butt joint.) (BJP) and (POP) in which, design (FP) is prepared with 2 mm incisal reduction and 0.5 mm palatal overlap. Results: In feather preparation (FP) design, stress values were slightly higher than that in control model in enamel and dentin at both load directions. While, but joint preparation (BJP) design exhibited the lowest stress in both layers and direction of load. Conclusion Highest stresses were concentrated at the cement – enamel junction in all loading scenarios, butt joint preparation (BJP) design in both load conditions developed lower stresses than that in other designs, and feather preparation (FP) design suggested the probability of abfraction formation.
Identifying the Key Quality Improvement of Undergraduate Engineering Education-Using Importance-Performance Analysis

The study aims to investigate the students’ perceptions on the importance and satisfaction levels on the quality of educational services provided by the faculty of engineering at Rajamangala University of Technology Thanyaburi. A questionnaire was developed and used to collect the data from undergraduate students who study in the year of 2 to 4. The students were asked to rank which academic and non-academic aspects perceived as most important and most satisfied. A total of 401 completed returns were statistically analyzed and evaluated by SPSS program. Importance-performance analysis (IPA) was used to identify student perceived factors that needed to be prioritized for improvement. The results show that the quality of academic staffs and quality of academic programs perceived as the most important factors in improving the quality of educational services and were also given the most satisfied by students. From IPA, it illustrates that three quality improvement area should be concentrated on academic reputation, job placement services and physical facilities like library, computer centre, IT system.
Consumer Loyalty of Shopee’s User in South Sumatera through Experiential Marketing

The ease of getting information on the internet makes the consumers easy to move to other brands. Experiential Marketing is one of the alternative solutions that can be used by Shopee -as one of the players in the online trading industry in South Sumatra- to increase their consumer loyalty. Through 5 aspects of experiential marketing namely Sense, Feel, Think, Act, and Relate. Shopee can build lasting relationships with their consumers. This study aims to determine the effect of Experiential Marketing on Consumer Loyalty of Shopee Users in South Sumatra. The population of this study is Shopee users in South Sumatra who have made transactions through Shopee more than once with a total sample of 120 samples. This research will use multiple linear regression analysis with SPSS. The results of the study showed that simultaneous experiential marketing had a significant effect on loyalty of Shopee consumer in South Sumatra. The results also showed, in partially that variable of Think did not significantly influence loyalty of Shopee consumer in South Sumatra.
Genotype x environment interaction and yield stability analysis of mung bean (Vigna radiata (L.) Wilczek) genotypes in Northern Ethiopia

Abstract The experiment was conducted from 2009–2011 cropping seasons. Six mung bean genotypes viz. SML-668, Black bean, Bored, Local Gofa, SML-32 and Local 2-Sheraro were evaluated to early maturing and high yielding genotypes and the design was RCBD with three replications. The combined analysis of variance reviled that there was highly significant variation (p < 0.01) of grain yield among the genotypes, environments and genotype by environment interaction. The genotypic, environmental and the genotype x environment interaction (GIE) accounted about 30.47%, 45.01% and 11.59% of the total variation. The average grain yield of the genotypes was 2008.17 kg/ha. The highest and the lowest mean yield was obtained from SML-668 (2536.47 kg/ha) and SML-32 (1773.59 kg/ha) respectively. The AMMI bi-plot also depicted that, SML-668 and SML-32 were the high yielding and low yielding genotype, respectively. Similar to the AMMI bi-plot, the GGE bi-plot also confirmed that SML-668 was the winning genotype in most of the environments; whereas, SML-32 and local 2-sheraro, were the low yielding genotypes in some or all of the environments. E1, E2 and E6 are discriminating environments and declared as the most representative than E3, E4 and E5. Generally, SML-668 was the ideal genotype with higher mean yield and relatively good stability; Local-2 Sheraro was the moderately good yielding genotype and the most unstable genotype; Whereas, SML-32 was the poorly yielding and unstable genotype.
Experiments for Predictable Execution of GPU Kernels

—Multi-Processor Systems-on-Chip (MPSoC) platforms will deﬁnitely power various future autonomous machines. Due to the high complexity of such platforms, it is difﬁcult to achieve timing predictability, reliability and efﬁcient resource utilization at the same time. We believe that time-triggered scheduling in combination with PRedictable Execution Model (PREM) can provide strong safety guarantees, and our longer-term goal is to schedule execution on the whole MPSoC (CPUs and GPU) in time triggered manner. To extend PREM to GPUs, we compare two synchronization mechanisms available on the NVIDIA Tegra X2 platform: one based on pinned memory and another that uses a GPU timer (so-called globaltimer ). We found that running the NVIDIA proﬁler (nvprof) reconﬁgures the resolution of the globaltimer from 1 µs to 160 ns. By using time-triggered scheduling with such a resolution, it was possible to reduce execution time jitter of a tiled 2D convolution kernel from 6.47% to 0.15% while maintaining the same average execution time.
Determination of Energy Properties of Fuelwood from Five Selected Tree Species in Tropical Highlands of Southeast Ethiopia

The aim of this study was to determine the energy properties of fuelwood samples which are preferred and used by local communities. The study used both cross-sectional survey of households and field survey. Systematic household sampling was used for household and random sampling for tree species. The chosen sample sizes for households in the study were 134. The cross-sectional survey of the local community on orderly preference of fuelwood consumption listed Acacia nilotica, Acacia etbaica, Olea africana, Acacia seyal, and Acokanthera schimperi. However, for the laboratory result and detail principal component analysis (PCA) of tree species in their density and moisture, ash, volatile, and fixed carbon contents, Olea africana was strongly recommended for fuelwood preference followed by Acacia nilotica, Acacia etbaica, Acacia seyal, and Acokanthera schimperi. The identification of community preference and scientific assessment on fuelwood consumption on different tree species will enhance the expansion of their plantation program in the region.
Insights into the recurrent energetic eruptions on Awu, one of the deadliest volcano on earth

Abstract. The little know Awu volcano is among the deadliest with a cumulative dead toll of 11048. In less than 4 centuries, 18 eruptions were recorded, including two VEI-4 and three VEI-3 with worldwide impacts. The regional geodynamic is controlled by a divergent-double-subduction and an arc-arc collision. In that context, the slab stalls in the mantle, undergoes an increase of temperature and becomes prone to melting, a process that sustained the magmatic supply. Awu also has the particularity to host alternatively and simultaneously a lava dome and a crater lake throughout its activity. The lava dome occurred passively through the crater lake and induced strong water evaporation from the crater. A conduit plug associated with this dome emplacement subsequently channeled the gas emission to the crater wall. However, with the lava dome cooling, the high annual rainfall eventually reconstituted the crater lake and creating a hazardous situation on Awu. Indeed with a new magma injection, rapid pressure buildup may pulverize the conduit plug and the lava dome, allowing lake water injection and subsequent explosive water-magma interaction. The past vigorous eruptions are likely induced by these phenomena, a possible scenario for the future events.
The correlation between the hypophysial gonadal axis with special reference to the role of fatty acids and isoenzyme during the ovarian maturation in female grass carp, Ctenopharyngodon idella

The present study was conducted to investigate the relationship between the gonad maturation of grass carp, Ctenopharyngodon idella and the changes of pituitary gland cells types coincides with oogonial development and their changes of fatty acid profile and isoenzyme electrophoresis. Five categories of oogenesis are detected such as immature, maturing, ripe spawning and follicular atresia. The pituitary gland has possessed six different kinds of cells. In the rostral pars distalis (RPD), two acidophilic cells types are distinguished; adrenocorticotropic hormone secreting cells (ACTH) and prolactin hormone secreting cells (PRL). The proximal pars distalis (PPD) exhibited two basophilic cell types include gonadotropic hormone secreting cells (GTH) and the thyrotrophic hormone secreting cells (TSH). During ripe stage, the gonadotrophic cells attained the highest changes of the GTH cells explained by increase of cytoplasmic secretory granules. The saturated fatty acids contents reached the maximum peak value and ranged from 38.45% to 39.19%. While unsaturated fatty acids (UFA) ranged from17.09. 1% to17.49% and polyunsaturated fatty acids (PUFA) become 43.54% to 44.29%. The most abundant fatty acids were palmitic acid (C16:0), stearic acid (C18:0) in case of SFA, oleic acid (C18:1 n-9) in case of MUFA, linoleic (C18:2 n-6) in case of omega6 and docosahexaenoic (DHA) and acid (C22:6 n-3) Eicosapentaenoic (20:5n-3) (EPA) in case of omega3. The assayed isoenzymes electrophoresis was altered during the ovarian development. The authors finally concluded that there is a gradual change in the pituitary of endocrine cells parallel with changes of follicular development and assessed by alterations of isoenzyme electrophoresis and fatty acids content.
Drivers of nitrogen and phosphorus dynamics in a groundwater-fed urban catchment revealed by high-frequency monitoring

Abstract. Eutrophication of water bodies has been a problem causing severe degradation of water quality in cities. To gain mechanistic understanding of the temporal dynamics of nitrogen (N) and phosphorus (P) in a groundwater-fed low-lying urban polder, we applied high-frequency monitoring in Geuzenveld, a polder in the city of Amsterdam. The high-frequency monitoring equipment was installed at the pumping station where water leaves the polder. From March 2016 to June 2017, total phosphorus (TP), ammonium (NH4), turbidity, electrical conductivity (EC), and water temperature were measured at intervals of less than 20 min. This paper discusses the results at three timescales: annual scale, rain event scale, and single pumping event scale. Mixing of upwelling groundwater (main source of N and P) and runoff from precipitation on pavements and roofs was the dominant hydrological process governing the temporal pattern of the EC, while N and P fluxes from the polder were also regulated by primary production and iron transformations. In our groundwater-seepage controlled catchment, NH4 appeared to be the dominant form of N with surface water concentrations in the range of 2–6 mg N L−1, which stems from production in an organic-rich subsurface. The concentrations of NH4 in the surface water were governed by the mixing process in autumn and winter and were reduced down to 0.1 mg N L−1 during the algal growing season in spring. The depletion of dissolved NH4 in spring suggests uptake by primary producers, consistent with high concentrations of chlorophyll a, O2, and suspended solids during this period. Total P and turbidity were high during winter (range 0.5–2.5 mg P L−1 and 200–1800 FNU, respectively, where FNU represents Formazin Nephelometric Unit) due to the release of P and reduced iron from anoxic sediment to the water column, where Fe2+ was rapidly oxidized and precipitated as iron oxides which contributed to turbidity. In the other seasons, P is retained in the sediment by sorption to precipitated iron oxides. Nitrogen is exported from the polder to the receiving waters throughout the whole year, mostly in the form of NH4 but in the form of organic N in spring. P leaves the polder mainly during winter, primarily associated with Fe(OH)3 colloids and as dissolved P. Based on this new understanding of the dynamics of N and P in this low-lying urban catchment, we suggested management strategies that may effectively control and reduce eutrophication in urban polders and receiving downstream waters.
Antidepressant use and recurrent falls in the elderly

Psychotropic drugs, including antidepressants, are commonly prescribed in elderly patients, and data suggest their use is associated with falls and resultant hip fracture. 1 , 2 Questions remain, however, as to whether the falls are directly related to the use of medication or to the underlying depressive condition, and the association between recurrent falls and antidepressant use has seldom been investigated. The following longitudinal study evaluated the risk of recurrent falls in elderly users of various antidepressants, with the study including individuals with a history of falls and/or fracture.
Comparative Evaluation Of Microbial Eradication In Root Canal By 5.25% Sodium Hypochlorite And 940 Nm Diode Laser: An In Vivo Study

Background: It is well known that the causative agent for endodontic disease is microbial growth, and therefore, to prevent or eliminate apical periodontitis, a complete microbial eradication is essential. Many researches have demonstrated that eradication of microbial growth before obturation leads to a more promising outcome for endodontic therapy. Purpose: This in-vivo study is considered the first study to compare in-vivo the antibacterial efficacy of 5.25% sodium hypochlorite with 940 nm diode laser in the infected root canal in Duhok city. Method: The study included 200 patients with pulpitis; the diagnosis was based on clinical signs (examination, probing, percussion, palpation) and X-ray investigation. They were divided into 2 groups; group 1 (n = 100) for the irradiation with 940 nm diode laser, and group 2 (n = 100) for the irrigation with 5.25% sodium hypochlorite. In each group, microbiological samples were taken on accessing the canal before treatments, and the second sample was taken after completion of the treatment. All microbiological samples were transferred immediately for microbiological analysis. Results: Hundred eighty-seven of the 200 patients (root canals) were included in the results since 13 patients showed no growth, and 299 bacterial isolates along with Candida albican were isolated and identified. Laser treatment eradicated the root canal of 70 patients, and 38 patients by the chemomechanical treatment. Significant differences were found in both treatments (One-way ANOVA, P˂0.05). The highest prevalence of bacterial isolates belongs to Enterococcus faecalis, followed by Streptococcus, Staphylococcus, and Candida albican. Both treatments eradicated the root canal of 108 (54%) patients and a reduction of the microbial growth in 79 (39%) of the patients. Conclusion: Both treatments showed a significant difference in eradicating the isolated microorganisms statistically. The 940 nm diode laser was more effective than chemomechanical treatment, as the root canal of more patients were eradicated from root canal bacterial growth. However, combining both treatments will give more effective against the microorganisms present in the root canal.
Respiratory and Endothelial Dysfunctions in Case of Obstructive Sleep Apnea-Hypopnea Syndrome

Methods: It is a cross-sectional study on 49 adult subjects: 23 suffering from OSAHS and 26 obese controls. All subjects underwent polysomnography or sleep polygraphy, lung function tests (total body plethysmography, measure of transfer factor of the lung for carbon monoxide (DLCO) and Fraction of Exhaled Nitric Oxide (FeNO)), Laboratory tests, and measurement of endothelial function by evaluating endothelium dependent vasodilatation (VDED) upon the combination of acetylcholine iontophoresis and blood flowmeter by Laser Doppler.
Income Inequality, Environmental Degradation and Economic Development Nexus in Nigeria: Reassessing the Kuznets Hypothesis

This study investigated the relationship between income inequality, environmental degradation and economic development in Nigeria within the ambit of the Kuznets hypothesis and employed the Autoregressive Distributed Lag (ARDL) technique. The findings indicate the non-existence of the Kuznets hypothesis in Nigeria; rather a scenario of a monotonically increasing relationship is observed between carbon dioxide emissions and economic development in Nigeria, especially in the short run. The results further showed that environmental degradation has a negative impact on economic development, but for Nigeria it is insignificant as in most developing countries; while income inequality however rises with economic development. Given that there is a trade-off between reducing carbon dioxide emissions and income inequality in Nigeria to boost growth and development, a clearly thought-out policy directed towards ensuring that increases in the income of the poor majority are not spent on carbon emitting activities is recommended.
Nutritional Values of Organic Farm Products, its Implications to Improved Sports Performance and Adequate Management of Athletes in Nigeria

Introduction Farm crops produced using properly processed organic manure are said to be more nutritious in the body than those cultivated with artificial chemical fertilizers [1]. Production of Chemical fertilizers hinges on two very crucial elements or substances namely Phosphorous (P) and Potassium (K). Hence it is known that chemical fertilizers are artificially produced containing nutrients in specific proportions. Even though they tend to be costlier than organic manure, yet they contain chemicals that could be toxic to the skin, respiratory system, acidic, whose acid contents dissolves into the soil, damaging the soil, since its nutrients are not replenished in the soil. Eventually when the cementing components of chemical fertilizers gets compacted, they
Class-dependent Pruning of Deep Neural Networks

Today’s deep neural networks require substantial computation resources for their training, storage and inference, which limits their effective use on resource-constrained devices. Many recent research activities explore different options for compressing and optimizing deep models. On the one hand, in many real-world applications we face the data imbalance challenge, i.e., when the number of labeled instances of one class considerably outweighs the number of labeled instances of the other class. On the other hand, applications may pose a class imbalance problem, i.e., higher number of false positives produced when training a model and optimizing its performance may be tolerable, yet the number of false negatives must stay low. The problem originates from the fact that some classes are more important for the application than others, e.g., detection problems in medical and surveillance domains. Motivated by the success of the lottery ticket hypothesis, in this paper we propose an iterative deep model compression technique, which keeps the number of false negatives of the compressed model close to the one of the original model at the price of increasing the number of false positives if necessary. Our experimental evaluation using two benchmark data sets shows that the resulting compressed sub-networks 1) achieve up to 35% lower number of false negatives than the compressed model without class optimization, 2) provide an overall higher AUC-ROC measure compared to conventional Lottery Ticket algorithm and three recent popular pruning methods, and 3) use up to 99% fewer parameters compared to the original network. The code is publicly available1.1https://github.com/rahimentezari/Sensys-ml2020
First abundance estimate for white whales Delphinapterus leucas in Svalbard, Norway

This study was supported by funds from the Norwegian Polar Institute, the Norwegian Research Council (ICE-WHALES, TIGRIF and GLAERE programmes), the Norwegian Polar Institute’s ICE Centre and the Fram Centre’s Fjord and Coast Flagship. T.A.M. was partially supported by CEAUL (funded by FCT - Fundacao para a Ciencia e a Tecnologia, Portugal, through the project UID/MAT/00006/2019).
Investigation of the leaching mechanism of NMC 811 (LiNi0.8Mn0.1Co0.1O2) by hydrochloric acid for recycling lithium ion battery cathodes

This paper investigates the reactions involved when LiNi0.8Mn0. 1Co0.1O2 (NMC 811), which is one of the most promising positive electrodes for the next generation of lithium-ion batteries, is leached by hydrochloric acid. This study shows that the leaching behaviour of lithium is quite different than those observed for nickel, cobalt and manganese contained in NMC 811 since lithium dissolution is faster than those observed for nickel, cobalt and manganese. Analysis of leaching kinetic data evidenced that NMC 811 dissolution occurs in two steps. In the first step, NMC is transformed into a new phase which contains less lithium (2.8 < n < 3.6): 1st step: where M = Ni, Mn, Co. In the second step, the new phase is dissolved (limiting step): 2nd step: . Finally, the overall reaction of NMC 811 leaching by hydrochloric acid can be written as: 2LiMO2,(s) + 8HCl(l) ⇌ 2LiCl(l) + 2MCl2,(l) + 4H2O(l) + Cl2,(g).
Flexibility of Work in Employment Relations and Labour Deployment in the Nigeria Labour Market

The paradigm shift in the world of work has created a new dimension in the labour market vis a vis employment relation; a point of reference is the flexibility of work and labour deployment in the Nigeria labour market. The study examines flexibility of work in employment relations and deployment of labour in the Nigeria labour market within the purview of relationship and the benefits to the employers and employees. Hence, the study takes an exploratory approach by reviewing extant literatures to understand the dynamics of work flexibility in employment relations and its influence on different patterns of labour deployment. The findings from the review of extant literatures revealed that there are various dimensions to flexibility of work in employment relations(workplace flexibility, workforce flexibility, low flexibility and mutual flexibility) and labor deployment(temporary worker, part time workers triangular employees etc.) in the Nigeria labour market and it often benefit the employer more because of the objective of maximizing return on investment by creating financial rigidity on the employee through cutting or reduction in the personnel cost or overhead cost. This study therefore recommends that a win-win flexible work dimension for deploying of workers for flexible work arrangement should be adopted to achieve a healthy employment relations practice in the Nigeria labour market.