Miracle-dz/UniFAR-FTUs huggingface dataset:
Developmental perspectives of numerical thinking for the interpretation of physical quantities

This research reveals the perspectives in the teaching of numerical thinking through a documentary review. The representation of physical elements such as functions, vectors and operators, and their subsequent interpretation through numerical thinking gives meaning to the physical quantities that such elements represent. A documentary sample integrated for 40 sources on numerical thinking such as articles published in indexed journals, postgraduate dissertations, and books is considered. A qualitative content analysis method is used. First, an encoding procedure is applied for tagging the extracted information from the source documents. Then, a split and merge procedure is considered in order to establish from the tags the dimensions and categories that allow determining the conceptual relationships that support the developmental perspectives of numerical thinking. The method reveals that the numerical thinking can be developed in the global context from four perspectives, namely, historical, theoretical, curricular, and social perspectives. From these results, an incorporation of the such perspectives can be institutionalized for promoting curricular, didactic and evaluative new proposals for numerical thinking teaching.
Domain Ontology Construction by Partial Import for Document Annotation

—Semantic annotation is a useful technique to understand the underlying meanings of the document. Domain specific knowledge provided by the domain ontologies is needed to semantically annotate the document. But the main problem is the availability of an appropriate ontology for the domain. Ontology construction from scratch is protracted and labor intensive job. Therefore, it is advantageous to construct the ontologies by reusing the existing ontologies. This paper proposes a technique for constructing domain ontology for semantic annotation of a document by partially importing the existing ontologies.
CONSUMER DECISION PROCESS EXPLORATION: LUXURY FASHION PRODUCTS IN BOGOTÁ

This research aims to explore the factors that are part of the decision process for purchasing luxury fashion products in the city of Bogota (Colombia). The variables of in fluence that arise from the previous literature (product display, technological accessi bility, representation of status, brand perception, lifestyle, association with well-being and wealth, association with delight, the motivation of the consumer, authenticity of the product, and cost-benefit ratio) were explored as part of 10 in-depth interviews with people between ages of 25 and 45 who live in strata 5 and 6 in Bogota, Colombia. The validity of the interviews is observed in the verification of concepts with previous re search, the quality of the data collected, and, therefore, with the condition of the dependence, credibility, and transferability of these data. The main variables that affect the decision process for purchasing luxury fashion products are the brand, exclusivity, distinction, and their relationship with the positive emotions generated in the consumer. The results of this research suggest how to improve their marketing strategies, focusing on what their target public looks for. This research is the first to analyze the decision process for purchasing luxury fashion products in the city of Bogota by using in-depth interviews.
A Closer Look at the Academic Support Seeking Behaviour of Male Undergraduate Students

This qualitative case study embraced Social Construction theory to explore undergraduate male students' perceptions on the academic support provided at one university as well as their engagement in academic support seeking. The study aimed to examine the influence of masculinity on academic support seeking behaviour. Volunteer sampling was used to collect data from seventy undergraduate male students in the School of Accounting. An open-ended questionnaire and semi structured interviews were used to collate data. Data generated was subjected to content analysis which revealed that participants are aware of the academic support available to them and that they consider certain forms of non-academic support as necessary for their academic success. The findings revealed that participants engaged in academic support seeking via Academic Development Officers, specialist tutors, lecturers, peers, family members and no one. The findings exhibit the need for a greater understanding by lecturers and the relevant personnel of how masculinity impacts academic support seeking behaviour of undergraduate male students. The findings of this study reveal that for students to excel at university they need more than just academic support as their basic needs for food, financial support and health care must be met. Further findings illuminate that undergraduate male students' decisions and behaviours are profoundly shaped by rigid social and cultural expectations related to masculinity. The findings of this study are significant as they subvert the findings of previous studies that men avoid help seeking behaviour.
An ab initio study of S-substituted iron–nickel–silicon alloy at the Earth's inner core pressure

The thermodynamic stability of S-substituting Si into a bcc Fe0.80Ni0. 05S x Si(0.15−x) random alloy, with x=0.025 n (n=0−− 4), was investigated up to 350 GPa by using an ab initio density functional method based on the full charge density–exact muffin-tin orbital–coherent potential approximation scheme. From the analysis of the calculated Δ H values, we suggest that the FeNiSSi stoichiometry with zero sulphur content always behaves as the most stable system along the whole pressure range of 0–350 GPa. As a general tendency, we found that the alloys with 6.8–8.1 wt. % Si are energetically more stable than those with lower silicon content, thus supporting the dissolution mechanism for the Earth's inner core compositional model.
Towards an Islamic Spiritual Model in Increasing Academic Performance of Accounting Students

This paper aims at proposing a model of Islamic spirituality to be implemented at highereducation institutions and determining its impact to the academic performance of the students. Thus, this model has suggested an Islamic spirituality programme to be incorporated into students’ activities known as the Sharing-is-Caring (SIC) programme. Regularly attending the programme is expected to provide positive impacts on the students’ academic performances because it emphasises on Islamic spiritual values which are crucial to the students’ successes. Questionnaire were distributed to the final-semester Accounting students and the findings revealed that the SIC programme could improve students’ Islamic spiritual values. However, the results of the study have failed to actualise the expected positive relationship between the SIC programme and the academic performances of the students.
Investigation of the free energy functions for electron transfer reactions

The free energy functions for electron transfer reactions in solution are explored using a previously developed microscopic simulation approach that provides a clear definition of these functions and the variable (the reaction coordinate) used as their argument. The issue of whether the curvatures of the two functions (which correspond to states with nonpolar and polar solutes) are different is given special attention. It is found, in contrast to some previous suggestions, that the curvatures of the two functions are quite similar, even when one would expect differences due to dielectric saturation effects, and that Marcus’ approximation (and, in fact, the linear response theory inherent in this approximation) provides a valid description of the solvent’s role in electron transfer reactions over a wide range of conditions. The present study demonstrates that direct simulations of the reactant and product states do not provide the data needed for determination of the free energy functions in high energy re.
Screening of Chrysin and its Derivatives for their Binding Affinity to Human Histone Deacetylases (Hdacs): A Computer-Aided Approach

Repositioning chrysin and chrysin-analogue as possible human histone deacetylases (PDB ID: 1t64) inhibitor was investigated. The chrysin-analogue CHD1, Chrysin, CHD2, CHD3, CHD4, CHD5, CHD6, CHD7,CHD8, CHD9 and CHD10 was noticed to have docking score of -7.8 kcal/mol, -7.6 kcal/mol, -7.6 kcal/mol, -7.3 kcal/mol, -7.2 kcal/mol, -7.2 kcal/mol, -7.1 kcal/mol, -6.9 kcal/mol, -6.9 kcal/mol,, -6.4 kcal/mol, and -5.7 kcal/mol respectively. The lead molecule (4-(5,7-dihydroxy-4-oxo-4H-1-benzopyran-2-yl)-2,6-dimethoxybenzene-1-sulfonyl chloride) was noticed to interact with MET 261, PRO 260, TYR 87, GLY 292, TYR 293, LEU 295, ARG 24, PRO 22, ILE 21, LEU 18, TYR 98, TRP 128, TYR 141 and PHE 139. The lead molecule demonstrated good pharmacokinetics and drug-like characteristic. Hence, 4-(5,7-dihydroxy-4-oxo-4H-1-benzopyran-2-yl)-2,6-dimethoxybenzene-1-sulfonyl chloride is a promising compound that should be further examined as drug candidates
Practice and Challenges of Villarization, in the Case of Selected Woreda of Assosa Zone, Benishangul-Gumuz Region, Ethiopia

The overall objective of this study is to explore the practice and challenges of villagization; in the selected woredas of the Assosa zone Beninshangul Gumuz regional state. To achieve goals of the survey study mixed research method was employed. Generally. the Sample size of 168 sample households were determined by using S = X 2 NP(1-P) ÷ d 2 (N-1) + X 2 P (1-P) , The research employed exploratory research design on the challenges and implementation of the program, and it applied mainly qualitative methods. On the basis and types of data gathered and the instrument used, both quantitative and qualitative techniques of data analysis or binary logistic regression supported by SPSS was employed. To calculate economic welfare loss I, used the change in price and the change in quantity demanded of goods and services. Welfare Loss = 0. 5 * (P2 - P1) * (Q1 - Q2). The only good thing about this life was farming since people had fertile lands. But, when villagization was implemented the lives of the villagers improved because they started to have better access to social services. The study showed that villagization was implemented voluntarily and based on the consent of the local people. However, it is possible to conclude that villagization has significantly improved the lives of the villagers by bringing positive changes that did not exist before. people.
Theoretical Model for the Differential Quenching Rates of CO Fluorescence by Ortho‐ and Parahydrogen

The experimental measurements of Millikan and co‐workers, which show that para‐H2 quenches vibrationally excited CO faster than normal‐H2 (14para, 34ortho) at temperatures below 500°K, are analyzed in the Born–Bethe approximation. Beginning with the observation that the rotational transition j = 2 → j = 6 in H2 has almost the same energy as the vibrational transition υ = 1 → υ = 0 in CO and invoking the assumption that long‐range forces are solely responsible for the difference in quenching rates between the two spin species of H2, we find that the temperature dependence of the measured rate differences can be reproduced almost quantitatively by truncating the Born–Bethe series at second order and by using an interaction potential derived from a multipole expansion of nonoverlapping charge distributions. The implications of this result, and the assumptions on which it is based, are discussed in considerable detail.
Physiological Role of Exogenous Spermine in Wheat (Triticum aestivum em. Thell) under Salinity

Wheat and rice are two major cereal crops that occupy about 50-55% of the total cropped area of India. Wheat is consumed in various forms by more than one thousand million populations and provides more than 50 percent of human energy and protein needs. Wheat is the most widely cultivated food crop and well adapted to grow in semi-arid regions. Salinity is the main factor impeding sustainable crop production, especially in irrigated arid and semi-arid regions of the world, where the rainfall is too low to prevent accumulations of ions in the soil and where irrigation is the cause of secondary salinization (Calanca, 2017). Salt stress is one of the major environmental constraints affecting and limiting the crop productivity and quality of economically important crops.
A Cumulative Canonical Correlation Analysis-Based Sensor Precision Degradation Detection Method

In practice, sensor precision degradation is ubiquitous and early detection of such a degradation is important for monitoring task. In this paper, a cumulative canonical correlation analysis (CCA) based sensor precision degradation detection method is presented in the Gaussian and non-Gaussian cases. At first, the fault sensitivity of the original CCA method to sensor precision degradation is theoretically analyzed. Then, the cumulative CCA-based method is proposed and delivers better fault detectability than the corresponding standard CCA-based method with respect to fault detection rate. For the non-Gaussian case, an efficient and practical applicable approach, referred as threshold learning approach, is proposed to set appropriate threshold based on available historical measurements. Finally, with the application to a real laboratorial continuous stirred tank heater plant, the feasibility and superiority of the proposed method are demonstrated by a comparison with the standard CCA-based and principal component analysis-based methods.
EFFECTIVENESS OF PERFORMANCE MANAGEMENT SYSTEM: A REVIEW OF THE MAIN ANTECEDENTS AND LESSONS FOR NIGERIAN ORGANISATIONS

Performance Management System (PMS) was developed and hastily implemented, and it was unable to produce the result that people demand from it. It is one of the greatest obstacles that most organisations face in the human resource units, and it typically escalates to various solutions from employee viewpoints. As a result, the study explores the effectiveness of PMS, the main antecedents and lessons for Nigerian organisations. The paper aims at reviewing the extant literature in the area of PMS to identify various antecedents of the PMS and lessons for Nigerian organisations. The study adopted the use of the qualitative method of secondary data obtained from textbooks, journals and publications materials found in different databases (such as Emerald, ProQuest, EBSCOhost, Sage, Google Scholar, etc.) on the internet. The study concludes that the implementation of PMS in Nigerian organisations would obtain better results if they can further improve some segments such as objective performance, key performance indicators, monitoring and evaluation. The study recommends that organisations need to identify and tackle the various challenges encountered in managing performance to have an effective PMS.
Time-dependent theoretical treatment of intervalance absorption spectra. Exact calculations in a one-dimensional model

Intervalence absorption spectra are calculated and interpreted by using the time-dependent theory of spectroscopy and the Feit and Fleck method of numerically integrating the time-dependent Schrodinger equation. These methods give exact eigenvalues and eigenfunctions (within the constraints of the model and the numerical accuracy of the computer implementation). The results provide a new physical picture of the absorption spectrum and emphasize that Born-Oppenheimer separation of electronic and vibrational wave functions does not apply to the problem. The details of the calculation are discussed and interpreted
Effect of Applied Vibration on Silo Hopper Design

The vibration-promoted flow of cohesive particulate solids was investigated for limestone and titania powder, each with an average particle size of about 1 µm. The flow behavior of fine cohesive powders can be improved by the application of harmonic vibrations, as reflected in the flow properties. Based on the work of Roberts (1978, 1984), a shear testing technique has been established that allows the measurement of the effect of vibrations on the flow properties of particulate solids. The experimental results show that the vibration application leads to a significant reduction of the shear strength. The unconfined yield strength decreases with increasing vibration velocity, whereas the angle of internal friction is nearly independent of applied vibration. Also, the unconfined yield strength and the wall friction angle \varphi_{\rm W} can be reduced by applying mechanical vibration. Based on the lab-scale shear tests, the hopper half angle and the unconfined yield strength were estimated. For the given example, the conical outlet width is reduced from 0.88 m to about 0.4 m, and the maximum hopper angle increases from 5° up to approximately 20° due to the vibration application. powder vibration flow behavior shear cell
Multi‐sensor fusion SLAM approach for the mobile robot with a bio‐inspired polarised skylight sensor

A multi-sensor fusion approach for simultaneous localisation and mapping (SLAM) based on a bio-inspired polarised skylight sensor is presented in this study. The innovation of the proposed approach is that a newly designed bio-inspired polarised skylight sensor, which is inspired by the navigation principle of desert ant, is introduced to improve the accuracy of SLAM. The measurement equations based on a polarised skylight sensor and a lidar are derived to obtain the orientation and position of the mobile robot and landmarks. Three kinds of non-linear filters, extended Kalman filter (EKF), unscented Kalman filter, and particle filter, are adopted and compared to fuse the polarised skylight sensor, lidar, and odometry to estimate the position, orientation, and map in the experiments. Simulation tests and experiments are conducted to validate the effectiveness of the proposed method. The simulations show that the EKF–SLAM with the polarised skylight sensor reduces the error of localisation about 30% and the error of mapping about 25%. Experiments indicate that the proposed EKF–SLAM approach can reduce the error of position and the heading angle, which verifies the proposed EKF–SLAM method, can be used for the outdoor with the low-cost multi-sensor.
Fabrication and characterization of nanoresonating devices for mass detection

We report on a novel fabrication process and preliminary characterization of a nanomechanical resonating device, which is to be used for mass detection. The fabrication of the device is based on laser lithography on Al coated SiO2/p++Si/SiO2/Si structures, followed by dry and wet etching. We have fabricated highly doped polysilicon free-hanging cantilevers and anchored drivers for lateral cantilever vibration, where the motion of the cantilever is parallel to the substrate. The cantilevers are actuated electrically by applying an ac voltage between the cantilever and driver. The laterally vibrating cantilever structures are approximately 30–50 μm in length, 1.8 μm in height, and 500 nm in width. The characterization of the resonators was performed by direct observation of the cantilever through an optical microscope. An electrical measuring technique is also presented and discussed. Typical values of resonant frequency and quality factor, at 1 atm, are approximately 500 kHz and 50, respectively. Moreover,.
THE USE OF ECONOMIC AND SOCIAL EXCHANGE PERSPECTIVES IN LINKING SALARY SATISFACTION, WORK RELATIONSHIP, AND EMPLOYEE PERFORMANCE

The purpose of the current study is to propose the relationships among salary satisfaction, work relationship, and employee performance. A three-dimension of employee performance (i.e., task, adaptive, and contextual) is used in this study. The triachy measure of individual performance is suggested as a comprehensive measure to be employed in the business-oriented context. Economicand social exchange theory were used to conceptualize the proposed hypotheses. A total of 118 responses from employees of an Indonesian company were analyzed in the hypotheses testing. The results suggested that both salary satisfaction and work relationship were positively related to employee performance. The independent variables were also positively related to all dimensions of employee performance. Furthermore, work relationship moderated the salary satisfaction-employee performance relationship. Theoretical and practical implications as well as the limitation of this study are discussed. Overall, this work advises that salary satisfaction and relationship at work are both necessary for employe performance improvement.
Diffusion of Hydrogen in Minerals

Measurement of the rate of diffusion of hydrous species in anhydrous minerals has been a subject of growing interest for the last ten years. Hydrogen diffusion studies are of fundamental importance to estimate the rate of transfer of hydrous species in natural conditions but also to identify the nature of the reactions involved in the speciation of hydrogen in minerals. For low concentration hydrous point defects, spectroscopic techniques are usually not sufficient to fully determine the location of hydrogen in the mineral structure. In these cases, kinetics studies provide additional constraints on the number of different defects stored in the mineral and their specific reaction rates. Numerous experimental data of hydrogen diffusion in minerals have now been published in the Earth Sciences literature. This review provides a digest to these data for a variety of minerals with a special focus on hydrogen in nominally anhydrous minerals. The review will not address the question of molecular water diffusion in minerals, melts or glasses. For a recent review of that question see for instance Doremus (2002). After a brief outline of basic diffusion concepts and methods of measurement, we summarize the main features of atomic diffusion linked to hydrogen isotope exchange and hydrogen reaction in minerals. Atomic diffusion is defined as the transport of matter in response to a driving force, which can be a chemical potential gradient or a temperature gradient. Atomic diffusion induced by a thermal gradient is very limited in solid earth sciences whereas the occurrence of strong chemical gradients is much more frequent in minerals. Atoms move from one region to the other in order to equilibrate the chemical potentials μ and reduce the Gibbs free energy of the system. The disequilibrium induced by a chemical potential gradient ( d μ/ dx )i of a component i …