Miracle-dz/UniFAR-FTUs huggingface dataset:
Contemporary Long-Term Trends in Water Discharge, Suspended Sediment Load, and Erosion Intensity in River Basins of the North Caucasus Region, SW Russia

For the first time, contemporary trends in water discharge, suspended sediment load, and the intensity of overall erosion in the river basins of the North Caucasus region, as one of Russia’s most agriculturally developed geographic areas, were identified. The study was carried out using monitoring data of the Federal Service for Hydrometeorology and Environmental Monitoring of the country for 21 rivers by comparing two periods: 1963–1980 and 2008–2017. According to the study’s results, trends of an increase in the mean annual water discharge (by 2–97%) and the essential reduction in its intra-annual variability have been found in most of the studied rivers. On the contrary, the trends of reduction in annual suspended sediment load and the intensity of erosion in the river basins were identified in most of the study region. Their most essential and statistically significant decreases (by 47–94%) were recorded within the Stavropol Upland, which several decades ago was considered one of the most erosion-dangerous territories of the entire country, as well as in some river basins of the central part of the Greater Caucasus’s northern slope (by 17–94%). The changes in climate (reducing the depth of soil freezing and meltwater runoff on the soil) and land use/cover (reduction of acreage and load (pressure) of agricultural machinery on the soil, reducing livestock on pastures, and the transfer of water from the neighboring, more full-flowing rivers) are considered the leading causes of the aforementioned trends. The findings will contribute to solving some economic and environmental problems of both the region and adjacent territories and water areas.
On Seemingly Unrelated Regression Model with Skew Error

Sometimes, invoking a single causal relationship to explain dependency between variables might not be appropriate particularly in some economic problems. Instead, two jointly related equations, where one of the explanatory variables is endogenous, can represent the actual inheritance inter-relationship among variables. Such typical models are called simultaneous equation models of which the seemingly unrelated regression (SUR) models is a special case. Substantial progress has been made regarding the statistical inference on estimating the parameters of these models in which errors follow a normal distribution. But, less research was devoted to a case that the distributions of the errors are asymmetric. In this paper, statistical inference on the parameters for the SUR models, assuming the skew-normal density for errors, is tackled. Moreover, the results of the study are compared with those of other naive methodologies. The proposed model is utilized to analyze the income and expenditure of Iranian rural households in the year 2009.
Uniformly ultimately bounded tracking control of sandwich systems with nonsymmetric sandwiched dead-zone nonlinearity and input saturation constraint

This article studies the uniformly ultimately bounded output tracking problem of uncertain nonlinear sandwich systems with sandwiched dead-zone nonlinearity in the presence of some practical constraints such as nonsymmetric input saturation, model uncertainties, time-varying external disturbances, and unknown parameters. Due to the existence of both dead-zone and saturation nonlinearities, the design process is more complicated; therefore, to solve the design complexities, the designing process is divided into two phases. The proposed method leads to output tracking with acceptable accuracy. Moreover, all signals in the closed-loop system are ultimately bounded. Simulation results illustrate the applicability and effectiveness of the proposed method by its application on two practical sandwich systems (robotic system and electrohydraulic servo press system).
A Protocol for a Systematic Review of the Effectiveness of Interprofessional Education Interventions in Pre-Licensure Health Professions Education

Background: A growing body of research demonstrates that interprofessional education (IPE) has the potential to lead to successful interprofessional collaborative practice (IPCP). In turn, IPCP has potential to mitigate the negative effects associated with an underfunded and shrinking healthcare workforce and population growth. Nonetheless, over the past decade, there has been a lack of systematic reviews that have examined the effectiveness of IPE in preparing pre-licensure health professions students for IPCP. The purpose of this paper is to provide a protocol for a systematic review that will explore and identify (1) whether IPE interventions in the past decade have addressed the shortcomings of past interventions, (2) the effectiveness of recent IPE in preparing students for IPCP, and (3) current knowledge gaps within the field. Methods: We used the Cochrane Collaboration and the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) guidelines to articulate this protocol. Furthermore, we used the Population, Intervention, Comparison, Outcomes, and Study Design (PICOS) framework to formulate our research questions, “What are the major trends and findings of IPE implementation studies conducted over the last decade (2010–2020)? ” and “How do the trends and findings of IPE studies conducted over the last decade compare with IPE studies in the decade prior? ” Discussion: The systematic review is ongoing. We expect to complete it by September 2021. This systematic review will provide a useful synthesis of best practices in the implementation of IPE between 2010 and 2020 as well as their effectiveness in preparing health professions students for IPCP. Systematic review registration: We submitted this protocol with PROSPERO on January 19th, 2021.
Lithology Identification of Alluvial and Lacustrine Aquifers in Baiyangdian Area by an Airborne Transient Electromagnetic Survey

An airborne transient electromagnetic (TEM) has been conducted in Baiyangdian Area to map resistivity distribution within the alluvial and lacustrine aquifers. This investigation evaluated the reliability of resistivity models of the TEM data to infer lithological distribution in alluvial and lacustrine aquifers. The collected airborne TEM data were processed and inverted using spatially constrained 1D inversion method. And the 3D electrical structure, which maps electrical resistivity trends to depths of about 160 m, can be established through interpolation. Comparison of the resistivity models to drill logs indicates resistive permeable coarse-grained sediments and conductive fine-grained sediments which are relatively impermeable. Hence, the 3D electrical structure that are related to lateral and vertical variation in lithology, can serve as baseline information for groundwater potential identification. This research indicates that groundwater detection is an ideal target for mapping with airborne TEM techniques because of the high electrical resistivity of permeable coarse-grained deposits and its contrast with impermeable fine-grained deposits.
The Role of Social Media in the Luxury Tourism Business: A Research Review and Trajectory Assessment

The luxury tourism industry immediately conjures up thoughts of exclusivity, with access to it confined to a small and elite group of travelers often located within their own social bubble. Our systematic literature review seeks to understand how tourism scholarship has addressed the issue of luxury travel based on social media pronouncements and the areas of concentration in which earlier studies have been conducted. Literature was sourced using the following key terms “luxury tourism”, “elite travel”, “social media”, and “sustainability” in various combinations using the OneSearch online platform, the Proquest Database, and Google Scholar. Only peer-reviewed journals were used for the critical analysis. Three main thematic areas were identified and reviewed: (1) the role of social media in luxury tourism; (2) the behavioral attributes of luxury travelers’ when using social media; and (3) the methodologies employed in the extant literature, given the limitations of accessing specific data for the luxury tourism market. The selected period for the journals and articles reviewed was the last ten years, from March 2010 to March 2020. NVivo version 12 was used to decipher the themes and focus areas as well as quantify the significance of social media to luxury tourism. Drawing from these literature review outcomes, the study explores future research areas and issues that require new theoretical and methodological frameworks to further our understanding of the intersection between social media and the luxury tourism business.
Nanostructured Epoxy Thermosets Containing Poly(vinylidene fluoride): Preparation, Morphologies, and Dielectric Properties

The nanostructured thermosets involving epoxy and poly(methyl methacrylate)-grafted poly(vinylidene fluoride-co-trifluoroethylene) copolymer (P(VDF-TrFE)-g-PMMA) were successfully prepared in this work. The P(VDF-TrFE)-g-PMMA graft copolymer was synthesized via the atom transfer radical polymerization of methyl methacrylate (MMA) with poly(vinylidene fluoride-co-chlorotrifluoroethylene) copolymer as the macromolecular initiator. It was characterized by means of proton nuclear magnetic resonance spectroscopy, gel permeation chromatography, differential scanning calorimetry, and dynamic laser scattering. Owing to the amphiphilicity, this graft copolymer can be readily incorporated into epoxy to obtain the nanostructured thermosets. Transmission electron microscopy showed that the spherical nanophases with a size of 10–100 nm in diameter were dispersed into the continuous epoxy matrix, depending on the content of P(VDF-TrFE)-g-PMMA. The measurement of dielectric properties showed that the modified epoxy ther.
Instantaneous active and reactive load signature applied in non‐intrusive load monitoring systems

The performance of non ‐ intrusive load monitoring (NILM) systems heavily depends on the uniqueness of the load signature extracted from the electrical appliances. Different load signatures have been proposed. Recently, in particular, v – i trajectory feature extraction is attracting more and more attention due to its unique characteristics. Herein, instantaneous p – q load signature (IpqLS) feature extraction is first proposed and applied in NILM, which shows that conventional methods cannot distinguish load signatures under some situations. Applying IpqLS with several machine learning algorithms is not only extracting unique features compared to the overlapping problems of P – Q and v – i trajectory but also improving load classification accuracy. Simulations and experimental results verified the effectiveness of the proposed method.
Enhanced Photocatalytic Activity of ZnO-Graphene Oxide Nanocomposite by Electron Scavenging

Advances in nanotechnology have opened new doors to overcome the problems related to contaminated water by introducing photocatalytic nanomaterials. These materials can effectively degrade toxic contaminants, such as dyes and other organic pollutants, into harmless by-products such as carbon dioxide and water. Consequently, these photocatalytic nanomaterials have the potential to provide low-cost and environment-friendly alternatives to conventional water and wastewater treatment techniques. In this study, a nanocomposite of zinc oxide and graphene oxide was developed and evaluated for photocatalysis. This nanocomposite was characterized by XRD, FTIR, FESEM, Diffuse Reflectance Spectroscopy (DRS), TEM and UV-Vis spectrophotometer. The photocatalytic behavior of the nanocomposite was studied through the degradation of methyl orange under ultraviolet light. It is reported that the weight ratios of zinc oxide and graphene oxide do not considerably affect the photocatalytic performance, which gives this process more compositional flexibility. Moreover, hydrogen peroxide was used as an electron scavenger to increase the time-efficiency of the process. The photodegradation rate can be significantly improved (up to 24 times) with the addition of hydrogen peroxide, which increases the number of trapped electrons and generates more oxidizing species, consequently increasing the reaction rate.
Screening of Total Alkaloids from Tibetan Medicine for Acetylcholinesterase Inhibitory Activity

Objective:To screen acetylcholinesterase inhibitory activity of total alkaloidal extracted from 8 tibetan medicines.Method:Tibetan medicines were extracted by ethanol and treated with hydrochloric acid and base,and then extracted by chloroform and n-butanol to obtain chloroform and n-butanol-soluble fractions.The AChE inhibitory activity was tested by TLC bioautographic method and modified Ellman's colorimetric method in 96-well microplates.Result:The results indicated that most of the chloroform-soluble fractions among the tested samples exhibited various activities.Holarrhena antidysenterica,Gentiana straminea,Anisodus tanguticus were demonstrated having significant activity with IC50 values of 6.32,28.2 and 34.80 mg·L-1 respectively.The n-butanol-soluble fractions of A.tanguticus also exhibited AchE inhibitory activity with the IC50value of 51.7 mg·L-1.Conclusion:H.antidysenterica,G.straminea,A.tanguticus,as sources of AchE inhibitor,are worthy of futher study.
Détachement des substrats ultra-minces des matériaux semi-conducteurs par implantation d’hydrogène à hautes énergies pour les applications photovoltaïques et électroniques

Cette these a ete motivee par l’etude d’un procede innovant de production de substrats ultra-minces (d’epaisseur variant de 15 μm a 70 μm), base sur l’implantation d’hydrogene a haute energie, dans notre cas comprise entre 1MeV et 2.5MeV. Une telle implantation suivie d’un traitement thermique approprie, conduit au detachement d’un film mince autoporte, appele « substrat ultra-mince ». L’interet de ce procede de detachement est purement economique, car il ne genere presque aucune perte de matiere premiere. Nous l’avons particulierement utilise pour produire des substrats ultra-minces de silicium (100), pour la production des cellules PV bas-couts. Dans le but d’elargir les champs d’applications du procede, le detachement de substrats ultra-minces de deux autres materiaux (le Ge et le SiC) tres utilises en electronique a aussi ete etudie. Ainsi, dans cette etude, les parametres optimaux d’implantation (energie et fluence) et de recuits conduisant au detachement de grandes surfaces de Si(100) ont tout d’abord ete investigues. Ensuite, l’application technologique du procede propose a ete validee par la realisation des cellules solaires au moyen des substrats ultrafins de Si detaches (50 μm et 70 μm d’epaisseur). Les performances PV obtenues ont ete assez proches de celles obtenues avec une cellule reference realisee sur un substrat standard. Par la suite, une etude detaillee faite par TEM et par FTIR sur les defauts etendus a differents stades de recuits a permis de mettre en lumiere la nature et la distribution spatiale des defauts precurseurs de la fracture dans le Si apres implantation a haute energie. Enfin, des essais de detachements realises avec le Ge et le SiC, lesquels ont ete compares au cas du Si, ont permis d’en savoir plus sur les criteres de detachement. En effet, plus le materiau sera rigide, i.e. plus il aura un module d’Young eleve, plus la fluence et la temperature de recuit necessaires pour le detachement seront elevees.
How infomediaries on Twitter influence business outcomes of a bank

PurposeThe purpose of this paper is to empirically explore under which conditions Tweets of infomediaries (i.e. ordinary users having few or no followers on Twitter) might nevertheless promote a negative sentiment toward a corporation to the point of having a negative impact on the corporation's outcomes.Design/methodology/approachThe empirical study is based on a unique database that combines a sample of one year of Twitter conversations about an Italian bank and its daily business performances (i.e. number of closures and openings). The relationship between these two is analyzed using autoregressive time series models (VAR). FindingsFindings indicate that a tweet affects a bank’s outcomes only when embedded in a larger conversation about the bank, rather than simply repetitively shared. These findings contribute to two debates within bank marketing literature. First is the debate about the role of infomediaries in banks' outcomes, as it urges to reconsider the way banks' online reputation is conceptualized and measured. Second is the debate on opportunities and threats of social media for the banking industry, as it indicates that negative sentiment expressed by the general public influences not only stock markets but also directly banks' outcomes.Originality/valueThis study allows managers and corporations to understand what to do when conversations of unknown individuals become threatening for the company. To influence such situations, the company should identify not only the actors that are influencers but also the communications that have been popular in the past for their brand or the brand of their competitors and monitor the conversational volume and broadness.
Effects of AgTi3 intermetallic on suppression of Ag agglomeration: a theoretical study

ABSTRACT The mechanical and electornic properties of AgTi, AgTi2 and AgTi3 intermetallic phases at zero pressure have been systemically investigated by first-principles calculations using ultrasoft pseudopotential and generalised gradient approximation. Mechanical properties calculation indicates AgTi3 is mechanically stable and shows a better ductility compared with AgTi and AgTi2. The positive formation enthalpy of AgTi3 confirmed that its formation is hard at 0 K but would be overcome with the aid of interfacial effect and high manufacture temperature. The adsorption behaviours of Ag atoms on AgTi3(111), AgTi3(011) and Ti(0001) surfaces were also investigated theoretically. The results show that Ag atoms prefer to be adsorbed on hollow sites on these surfaces. Diffusion barriers calculation reveals that AgTi3 surface can suppress Ag diffusion compared with Ti(0001) surface, significantly. The good adhesive character of Ag(111)/AgTi3(111) interface provides a powerful guarantee of long-term Ag-Agglomeration suppression.
Performance evaluation and coefficients of reliability for waste stabilization ponds in northeast Brazil

This paper assesses the reliability of Waste Stabilization Ponds (WSP) and proposes an alternative approach to WSP design based on the calculation of coefficient of reliability (COR) from an acceptable measure of violation of discharge standards. For that, data were collected from 10 full-scale systems operating in Northeast Brazil. All systems receive predominantly domestic effluent and are composed of one facultative pond and two serial maturation ponds. Different levels of restriction for effluent discharge were considered regarding the parameters: BOD, COD, total suspended solids, ammonia and thermotolerant coliforms. The Log-normal Probability Distribution Function (PDF) was able to represent the behavior of the concentration data in the effluent and, therefore, allowed the COR calculation. The COR was obtained from the coefficient of variation (CV) of the concentrations and the standardized normal variable associated with a 95% probability of non-exceedance. The observed dispersion of the results proved to be detrimental to the adoption of a single COR value for the evaluated parameters. In addition, the comparison between observed and design/operational concentration for optimal performance showed that the 95% reliability scenario represents a less achievable target for WSP systems.
Comparison and Reflection on Basic Education Teaching Management between China and America from a Cross-Cultural Perspective

Education is the basis of a One-Hundred Year Strategy of a Nation, the cornerstone of nation progress, the driving force to promote national rejuvenation, and the inevitable choice to improve the quality of our citizens. Basic education is the foundation of the whole education management system. Only by doing basic education well can citizens get long-term development in their future life. Basic education management is very rich in content; this article compares the differences of the basic education teaching management between China and America from the basic education management system, teaching management and the teacher-student relationship management, hoping to help our country’s basic education teaching management by learning from each other and facing up to the inadequacy and promote the healthy growth of Chinese students.
Perovskite Solar CellDevice Modeling and Performance Based on Resemblancewith Thin Film Inorganic Solar Cells Structure

The Extraction of photons radiation absorption is the best in the solar energy for photovoltaic cells working operations. In recent years’ research in Perovskite solar cell technologies have been an extremely enchanting. perovskite Organic-inorganic materials are in an expand growth in power conversion efficiency.In laboratory level the materials of Inorganic Perovskite solar cell have been tested but their power conversion efficiency is still finite. This paper work mainly focused to finding absorber layer optimum condition and also to simulate proposed structured perovskite solar cell. For simulations we used SCAPS-1D software simulator. The structure proposed of the solar perovskite cell employs resemblance with supplementary solar inorganic cells like CdTe,Cu (In, Ga) Se2 and CIGS.CH3NH3PbI3-xCl3 is layer absorber preowned as extremely efficacious absorberfor its great attention. The open circuit voltage for a condition is 1.112 V obtain and more than the efficiency value is 25%. The outcome of work, purpose of contacts like forepart and rear has a significant effect on top of the fill factor and efficiency also. By varied the parameter of thickness in layers of divergent bestoutcome has been attained and also shown quantum efficiency (QE) and I-V characteristics.
FLOW DYNAMICS OF LID-DRIVEN CAVITIES WITH OBSTACLES OF VARIOUS SHAPES AND CONFIGURATIONS USING THE LATTICE BOLTZMANN METHOD

This work implements the emerging computational technique namely the Lattice Boltzmann Method (LBM) to a fluid flow problem of single sided lid-driven cavities with various shapes of obstacles placed in it. The numerical methodology employs the Single-Relaxation-Time (SRT) model applicable to low Mach number hydrodynamic problem for incompressible flow regime. Three geometrical shapes of the obstacles considered are circular, square, and elliptic. Cavity with obstacles exhibited remarkable circulation zones and structures in contrast to the classical lid driven cavity. The flow mechanics and the vortex dynamics are studied for various values of Reynolds Number (Re = 100, 400, and 1000). Due to the introduction of the obstacles, a strong induced vortex forms close to the obstacles and its size changes interestingly with the variation of Reynolds number, which is captured by LBM. Further the study is extended to examine the vortex phenomena induced by changing the position of the obstacles within the cavity. It is observed that the flow structures change dramatically with little change in the position of obstacle inside the cavity which helps to identify position with enhanced mixing characteristics.