Miracle-dz/UniFAR-FTUs huggingface dataset:
PERFORMANCE EMPRESARIAL À LUZ DO MÉTODO DUPONT EM COMPANHIAS DO SETOR DE CONSTRUÇÃO CIVIL LISTADAS NA B3: UMA ANÁLISE NOS PERÍODOS DE CRISE E PROSPERIDADE ECONÔMICA

Este estudo teve por objetivo demonstrar o desempenho empresarial de lucratividade e produtividade de 18 companhias do setor da construcao civil, listadas na B3, nos anos de 2010 a 2018, estabelecendo um comparativo entre os periodos de prosperidade e recessao economica e averiguando o impacto sofrido pelas entidades. A analise foi realizada por meio da aplicacao do metodo de mensuracao Du Pont e com o auxilio da pesquisa descritiva, utilizando testes de media ( t student ) com niveis de significância de 5% e 10%. A pesquisa documental tambem se fez necessaria, uma vez que, as demonstracoes contabeis (BP e DRE) foram fontes de coleta de dados. Os resultados obtidos atraves dos calculos realizados pelas variaveis evidenciadas no modelo demonstraram que os niveis de produtividade e de lucratividade das empresas foram afetados com o inicio da crise em 2014. No setor da construcao civil, tanto o ROA, quanto o ROE expunham resultados positivos no periodo de 2010 a 2013, todavia, nos anos de 2014 a 2018 a performance do segmento mostrou-se menos satisfatoria. O presente estudo pode contribuir como fonte de pesquisa para estudiosos e investidores, uma vez que, alem de difundir conhecimentos sobre o modelo Du Pont , tambem exibe o desempenho economico de um importante setor da economia.
Wireless Cyber-Physical System Performance Evaluation Through a Graph Database Approach

Despite the huge efforts to deploy wireless communications technologies in smart manufacturing scenarios, some manufacturing sectors are still slow to massive adoption. This slowness of widespread adoption of wireless technologies in cyber-physical systems (CPS) is partly due to not fully understanding the detailed impact of wireless deployment on the physical processes especially in the cases that require low latency and high reliability communications. In this paper, we introduce an approach to integrate wireless network traffic data and physical processes data in order to evaluate the impact of wireless communications on the performance of a manufacturing factory work-cell. The proposed approach is introduced through the discussion of an engineering use case. A testbed that emulates a robotic manufacturing factory work-cell is constructed using two collaborative-grade robot arms, machine emulators, and wireless communication devices. All network traffic data is collected and physical process data, including the robots and machines states and various supervisory control commands, is also collected and synchronized to the network data. The data is then integrated where redundant data is removed and correlated activities are connected in a graph database. A data model is proposed, developed, and elaborated; the database is then populated with events from the testbed, and the resulting graph is presented. Query commands are then presented as a means to examine and analyze network performance and relationships within the components of the network. Moreover, we detail the way by which this approach is used to study the impact of wireless communications on the physical processes and illustrate the impact of various wireless network parameters on the performance of the emulated manufacturing work-cell. This approach can be deployed as a building block for various descriptive and predictive wireless analysis tools for CPS.
Physics and technology of magnetron sputtering discharges

Magnetron sputtering deposition has become the most widely used technique for deposition of both metallic and compound thin films and is utilized in numerous industrial applications. There has been a continuous development of the magnetron sputtering technology to improve target utilization, increase ionization of the sputtered species, increase deposition rates, and to minimize electrical instabilities such as arcs, as well as to reduce operating cost. The development from the direct current (dc) diode sputter tool to the magnetron sputtering discharge is discussed as well as the various magnetron sputtering discharge configurations. The magnetron sputtering discharge is either operated as a dc or radio frequency discharge, or it is driven by some other periodic waveforms depending on the application. This includes reactive magnetron sputtering which exhibits hysteresis and is often operated with an asymmetric bipolar mid-frequency pulsed waveform. Due to target poisoning the reactive sputter process is inherently unstable and exhibits a strongly non-linear response to variations in operating parameters. Ionized physical vapor deposition was initially achieved by adding a secondary discharge between the cathode target and the substrate and later by applying high power pulses to the cathode target. An overview is given of the operating parameters, the discharge properties and the plasma parameters including particle densities, discharge current composition, electron and ion energy distributions, deposition rate, and ionized flux fraction. The discharge maintenance is discussed including the electron heating processes, the creation and role of secondary electrons and Ohmic heating, and the sputter processes. Furthermore, the role and appearance of instabilities in the discharge operation is discussed.
Prediction of compressive strength of High-Performance Concrete by Random Forest algorithm

The prediction results of the compressive strength of high-performance concrete (HPC) based on intelligent algorithms are seriously affected by the input variables. In this study, the Random Forest algorithm (RF) is introduced to optimize the number of input variables by evaluating the importance of influencing factors, and then predict the 28-day compressive strength through Random Forest Regression. The results show that this method is effective for the optimization of input variables, and when the parameters are set within a reasonable range, better prediction results can be obtained than non-variable optimization.
Basic nutritional investigation Effects of -3 fatty acids on inflammatory mediators and splenocyte cytokine mRNA expressions in rats with polymicrobial sepsis

Objectives: Many studies have shown that -3 fatty acids (FAs) have immunomodulatory effects. However, the influence of -3 FAs on septic conditions is not certain. This study examined the effect of fish oil (FO)-enriched diets before and/or -3 FA-containing total parenteral nutrition (TPN) after sepsis on the distribution of T-lymphocyte subpopulations and splenocyte cytokine mRNA expressions in rats with polymicrobial sepsis. Methods: Rats were assigned to a control group and four experimental groups. The control group and groups 1 and 2 were fed a semipurified diet, and groups 3 and 4 had 20% soybean oil replaced by FO. After feeding the diets for 10 d, sepsis was induced by cecal ligation and puncture (CLP) in the experimental groups, whereas sham operation was performed on the control group. TPN was maintained for 3 d after CLP or sham operation. The control group and groups 1 and 3 were infused with conventional TPN, whereas the TPN solution of groups 2 and 4 was supplemented with FO. All rats were sacrificed 3 d after the operation to examine their immune responses. Results: Messenger RNA expressions of interleukin-2 and tumor necrosis factor- in splenocytes were higher in groups 3 and 4 than in the control group and group 1. Interleukin-10 mRNA expression in group 3 was higher than in the control group and group 2. Blood CD4 percentage and CD4/CD8 ratio in group 1 were significantly lower, whereas no differences were observed in FO-supplemented groups compared with the control group. Conclusion: FO administration before and/or after CLP maintained blood T-lymphocyte subpopu- lations and modulated T-helper type 1 and 2 cytokine mRNA expressions in rats with polymicrobial sepsis. © 2008 Elsevier Inc. All rights reserved.
Single Particle Electron Cryomicroscopy of the Thermus thermophilus V/A-Type Rotary ATPase and Structure of the Membrane-Bound a Subunit

Single Particle Electron Cryomicroscopy of the Thermus thermophilus V/A-Type Rotary ATPase and Structure of the Membrane-Bound a Subunit Daniel Schep Master of Science Graduate Department of Medical Biophysics University of Toronto 2016 Rotary ATPases are membrane-bound protein complexes found ubiquitously in biology that carry out ion transport and ATP synthesis. Despite variation in structure and function, conserved biochemical features dictate the mechanisms of rotary ATPase action. Structural models are available for many subunits in every class of rotary ATPase, but none exist for the membrane-bound ion-transporting a subunit. Here we present the structure of the intact Thermus thermophilus V/A-type rotary ATPase at 6.4 Å, obtained by single particle electron cryomicroscopy. This map was used in concert with evolutionary covariance analysis and biomolecular modelling to create a model of the a subunit. Models were similarly generated for the Saccharomyces cerevisiae V-ATPase a subunit and Bos taurus F-type ATP synthase a subunit. These models display similar features despite large sequence variation, indicating a conserved path for protons and suggesting a universal mechanism of proton translocation in rotary ATPases.
Spatial Variation in a Shallow-Water Sponge-Dominated Reef in Timor-Leste (East Timor)1

Abstract: Coral abundance is declining on many coral reef ecosystems worldwide, which in some locations has resulted in regime shifts where coral has been replaced by other benthic organisms. Although transitions to sponge-dominated states have been reported from a number of locations across the world after coral declines, they are typically dominated by only one or few species. However, there is increasing evidence that high-diversity sponge-dominated reefs may persist in the future as reefs experience ocean warming and acidification, because sponges appear generally more resilient than corals. Here we quantify spatial variation in a highly unusual shallow-water (<5 m and deeper) coral reef system at Jaco Island in Timor-Leste (East Timor) that is dominated by diverse sponge assemblages and has little coral. We found a total of 33 sponge species (based on Operational Taxonomic Units) in a total sampling area of 15 m2. We found that sponges were the dominant biological group at this site and covered approximately 29% of the benthos, with live coral, algae, and dead substrate cover at 7%, 7%, and 54%, respectively. Multivariate analysis identified that sponge assemblages varied significantly over a small spatial scale (100 m). Our findings differ from those from the generally low-diversity sponge reefs that have been reported elsewhere as coral has declined and may be more typical of future sponge-dominated reefs. Therefore, future studies to understand how this reef functions may provide insights into how future high-diversity sponge reefs might function.
Requirements for systemic sclerosis expert centres in the Netherlands: A Delphi consensus study

Introduction: Systemic sclerosis is a rare and complex disease. Optimal management of patients requires knowledge and experience and, importantly, intensive collaboration between hospitals and multidisciplinary teams. Definition and recognition of expert centres in systemic sclerosis is currently lacking, which complicates collaboration between centres and leaves patients poorly informed. The aim of this study was to develop a set of requirements for two types of systemic sclerosis centres in order to establish a nationwide structure for an optimal and transparent organization of care. Methods: A three-round Delphi study was conducted among a panel of rheumatologists working at university or regional hospitals across the Netherlands. Prior to the final consensus round, a session with a patient panel (N = 22) was held. The results of this meeting were described in the last round for rheumatologists. Criteria were divided into five categories: (1) medical care, (2) case load, (3) collaboration, (4) research, (5) training of staff, and (6) other. In the first round, criteria derived from literature were proposed and participants could add criteria that were missing. For every item, participants could indicate if they thought the item should be included for two types of systemic sclerosis centres: (1) systemic sclerosis expert centre or (2) systemic sclerosis treatment centres. Consensus was reached when more than 85% of the panel agreed. Results: In total, 47 rheumatologists participated in Delphi round 1, 35 in round 2 and 43 in round 3. Additional suggestions were added by the patient panel (n = 22). Consensus was reached for the requirements of systemic sclerosis expert centres (45 items) and systemic sclerosis treatment centres (29 items) including minimal caseloads of annual suspected systemic sclerosis cases and total patients in care. Conclusion: Requirements of centres for systemic sclerosis care in the Netherlands were established in this study. Feasibility of certification should be evaluated next. Our proposed list can serve as a model for other countries.
Valeur nutritive des prairies mesurée par spectrométrie dans le proche infrarouge

connaître la valeur nutritive des fourrages consommés par les ruminants. Cette valeur nutritive est complexe à déterminer; elle peut être estimée à partir des teneurs en différentes substances ou groupes de substances, comme la matière azotée, la matière sèche, la matière organique, la ligno-cellulose, la lignine, la cellulose vraie et la fraction insoluble des composés phénoliques. Scehovic (1975, 1976, 1979, 1990, 1995 et 1999) a développé des méthodes d’analyse chimique permettant de mesurer la plupart de ces paramètres. Il a également mis au point des indices décrivant l’effet potentiellement négatif et l’action fermentaire potentielle du fourrage (Scehovic 1999). La digestibilité de la matière organique, c’est-à-dire le degré de digestion de la matière organique par l’animal, est le paramètre le plus représentatif de la qualité du fourrage. La DMOL est basée sur la teneur des fourrages en ligno-cellulose, en lignine, en La valeur nutritive des fourrages consommés par les ruminants détermine en grande partie leur production de lait et de viande. Les analyses chimiques requises pour déterminer cette valeur nutritive sont laborieuses. La spectrométrie dans le proche infrarouge (NIRS) offre une alternative non destructive et rapide pour analyser les principaux paramètres déterminant la valeur nutritive d’un fourrage. Cette étude compare les résultats d’analyses chimiques et de mesures NIRS effectuées sur 169 échantillons de fourrages issus de prairies permanentes et temporaires.
Changes in the oxidative metabolism of cassava (Manihot esculenta Crantz) roots associated with cultivation managements.

The sweet cassava root age and pre-harvest managements can modulate the oxidative metabolism and provide a longer shelf life. Moreover, the evaluation of enzymes envolved in oxidative protection regarding the phenolic metabolism can be an additional approach to understand how the cultivation affects the post-harvest physiological deterioration tolerance in sweet cassava roots. Thus, the aim of this study was to evaluate the oxidative enzymatic protection associated to oxidation mediate by PPO and POD, in response to population density and harvest time of sweet cassava roots, cv. "Mossoró". The roots were cultivated in field conditions in the Brazilian Semiarid, under irrigation. The experimental design was a randomized complete block with three replications. Treatments corresponded to four harvest times (240, 300, 360, 420 days after planting DAP) and four population densities (10,000, 12,500, 15,000 and 17,500 plants ha). Sweet cassava roots were sampled and the total soluble phenol content as well as soluble protein content were measured. Also, polyphenol oxidase (PPO), peroxidase (POD), superoxide dismutase (SOD), catalase (CAT) activity was evaluated. The roots showed higher total soluble phenol content at 300 and 360 DAP and higher protein content at 240, 300 and 360 DAP, for all densities avaluated. Planting densities extremes, of 10,000 and 17,500 plants ha, resulted in higher levels of phenolics compounds and SOD activity. However, did not promote difference in the levels of soluble proteins. There was a significant reduction at PPO, SOD and CAT activity with late harvest, which did not occur for POD activity. Therefore, younger roots have higher oxidative enzymatic protection when compared to older roots in Semiarid conditions.
POTENSI MODIFIKASI PATI DENGAN ESTERIFIKASI SEBAGAI PREBIOTIK

Bahan makanan yang bersumber dari pati adalah sumber energi penting bagi masyarakat dan secara nyata juga memberikan kontribusi yang cukup spesifik untuk kesehatan. Modifikasi pati dapat mengahasilkan pati yang tahan cerna di dalam saluran pencernaan manusia. Pati resisten dari modifikasi kimia secara esterifikasi telah diketahui meningkatkan sifat fisik, kimia, dan sifat fungsionalnya serta mempunyai manfaat kesehatan. Pati resisten secara positif mempengaruhi fungsi saluran pencernaan, mikroba, indeks glikemik dan membantu dalam pengendalian penyakit diabetes. Selain mempunyai efek kesehatan, pati resisten juga mempunyai sifat sensoris yang tidak banyak mengalami perubahan apabila dibandingkan dengan sumber serat pati, seperti biji-bijian utuh, buah-buahan atau dedak. Di antara sifat fisikokimia dari pati resisten adalah kapasitas pembengkakan, viskositas, pembentukan gel dan kapasitas pengikat airnya, yang membuatnya berguna dalam berbagai makanan.
Relax-and-split method for nonconvex inverse problems

We develop and analyze a new ‘relax-and-split’ (RS) approach for inverse problems modeled using nonsmooth nonconvex optimization formulations. RS uses a relaxation technique together with partial minimization, and brings classic techniques including direct factorization, matrix decompositions, and fast iterative methods to bear on nonsmooth nonconvex problems. We also extend the approach to robustify any such inverse problem through trimming, a mechanism that robustifies inverse problems to measurement outliers. We then show practical performance of RS and trimmed RS (TRS) on a diverse set of problems, including: (1) phase retrieval, (2) semi-supervised classification, (3) stochastic shortest path problems, and (4) nonconvex clustering. RS/TRS are easy to implement, competitive with existing methods, and show promising results on difficult inverse problems with nonsmooth and nonconvex features.
Localized modes in linear and nonlinear octagonal-diamond lattices with two flat bands

M. G. Stojanović ,1 M. Stojanović Krasić ,2 A. Maluckov ,1,3 M. Johansson ,4 I. A. Salinas,5 R. A. Vicencio ,5 and M. Stepić 1 1P* Group, Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia 2Faculty of Technology, University of Niš, 16000 Leskovac, Serbia 3Center for Theoretical Physics of Complex Systems, Institute for Basic Science (IBS), Daejeon 34126, Korea 4Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden 5Departamento de Física and MIRO, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago 8370448, Chile
Numerical and Experimental Optimization Study on a Fast, Zero Emission Catamaran

The present study focuses on the hydrodynamic hull form optimization of a zero emission, battery driven, fast catamaran vessel. A two-stage optimization procedure was implemented to identify in the first stage (global optimization) the optimum combination of a ship’s main dimensions and later on in the second stage (local optimization) the optimal ship hull form, minimizing the required propulsion power for the set operational specifications and design constraints. Numerical results of speed-power performance for a prototype catamaran, intended for operation in the Stavanger area (Norway), were verified by model experiments at Hamburgische Schiffbau Versuchsanstalt (HSVA), proving the feasibility of this innovative, zero emissions, waterborne urban transportation concept.
Extended Dual-Focus Microscopy for Ratiometric-Based 3D Movement Tracking

Imaging the three-dimensional movement of small organelles in living cells can provide key information for the dynamics of drug delivery and virus transmission in biomedical disciplines. To stably monitor such intracellular motion using microscope, long depth of field along optical axis and accurate three-dimensional tracking are simultaneously required. In the present work, we suggest an extended dual-focus optics microscopy system by combining a bifocal plane imaging scheme and objective lens oscillation, which enables accurate localization for a long axial range. The proposed system exploits high-resolution functionality by concatenating partial calibration result acquired each axial imaging level, maintaining the practical advantages of ratiometric method.
Nutritive Profile of Sun Dried Fermented Mud Fish (Clarias Anguiliaris) and Tiger Fish (Hydrocynus Vittatus) Locally Known as Abil Alier Sold in Markets in South Sudan

Fishes are irreplaceable animal food in developing countries as a source of high quality protein and micronutrients. This study was carried out to determine the proximate composition, mineral content and fatty acids of sun-dried fermented Mud Fish (Clarias anguiliaris) and Tiger Fish (Hydrocynus vittatus) sold in local markets of South Sudan. International Organization for Standardization procedures were used to determine proximate composition, Atomic Absorption Spectrophotometer for mineral content and Gas Chromatography-mass spectrometry for fatty acids. C. anguiliaris had higher concentrations of crude protein (75.2%), crude fat ( 24.9%) and moisture content ( 14.3%) than H. vittatus with 65.98%, 7.81%, 8.12% respectively. H. vittatus had more ash content ( 4.1%) and carbohydrate ( 3.59%) than C. anguiliaris at 2.7% and 2.12% respectively. Palmitic fatty acid was the dominant saturated fatty acid in H. vittatus (21.12%) and C. anguillaris (21.32%). Eicosatrienoic acid was 11.21% in H. vittatus and 10.64% in C. anguillaris and was the highest polyunsaturated fatty acid. Calcium was the highest mineral followed by magnesium and zinc. Lead and mercury were significantly (P < 0.0001) higher in C. anguiliaris ( 0.104 ± 0.001 g100g -1 ) than H. vittatus (0.06 ± 0.000 g100g - 1 ) . C. anguiliaris and H. vittatus are highly nutritious and rich sources of protein, moisture, lipid, ash and minerals.
Thermal Degradation Phenomena of Polymer Film on Magnet Wire for Electromagnetic Coils

Polymer film insulation degradation is a major problem for electric machines which leads to short circuits, overheating, and eventually the occurrence of catastrophic failure. Electrical insulation materials provide the vital function of turn-to-turn, phase-to-phase, and phase-to-ground electrical isolation for the electromagnetic coils and windings. This article investigates the characterization of early-onset degradation of thin-film magnet wire insulation at elevated temperatures from 200 to 275 $^{\circ }$C. Sample specimens were analyzed after ageing for 100 h in terms of their physical properties (surface roughness, mass), chemical properties [Fourier transform infrared (FTIR) spectroscopy], dielectric properties (capacitance and dissipation factor), and electrical properties (voltage breakdown strength and resistance). The results show that the specimen roughness and mass increase and decrease uniformly, respectively, with increased ageing temperature. Similar degradation results trends with respect to ageing temperature for the dielectric properties and electrical insulation strength is documented. The article also reports an extended ageing study which investigates early breakdown voltage on sample specimens over a much longer time duration, that of up to 1600 h.