Miracle-dz/UniFAR-FTUs huggingface dataset:
Short-term electric power demand forecastingusing a hybrid model of SARIMA and SVR

Short-term electric power demand forecasting is the most basic and important application of smart grid. With the rapid development of renewable energy and clean energy in recent years, power demand forecasting gains special attention again. It has a great impact on the planning of power generation units and the purchase and sale of power market. Furthermore, itis also conducive to the realization of demand response and resource allocation efficiency and reliability, thus contributing to the Photovoltaic power generation system as well. Although generous methods have been proposed, it remains to be an open challenge owing to its limited precision. In this paper, a hybrid method of Seasonal Auto-Regressive Integrated Moving Average (SARIMA) and Support Vector Regression (SVR) is proposed for hourly forecasting, which overcomes the difficulty of generalization of a single model. The core thought of this model is using SARIMA to fit the linear part of the series and correcting the deviation by SVR. We tested the accuracy of this method on a public data set, and the result shows that it performs much better than the single SARIMA model on the fitting effect. Also, we compared our model with the recent three works, and it demonstrates a decrease of 18.102%,10.534% and 4.757% in forecasting error respectively. To our surprise, when we usedthe previous four hours of data to predict the current data by the single SVR, we got the best performance of all models. In the end, we analyzed the possible causes for this result.
Triazatruxene radical cation: a trigonal class III mixed valence system

The highly symmetric and stable triazatruxene radical cation was generated chemically for the first time. The intervalence charge transfer (IV-CT) absorption band of the radical cation was observed at 7500–12 500 cm−1. The IV-CT band exhibited a well-resolved, solvent independent vibrational structure which prompted us to classify the radical cation as a Robin and Day class III IV-CT compound. The assignment was examined in light of two previously reported semi-classical models for three-center IV-CT systems. The triazatruxene radical cation is the first and only example of a three-center class III IV-CT system.
Investigation into parents’ participation in their children’s formal education in nine year basic education schools (9YBE) in Rwanda

Nowadays, the performance of students is viewed as an outcome generated by various dynamics where the family and the school can be taken as the cornerstone of efficacious education. This is the real purpose that pushed the researcher to bring an investigation into the parents’ participation in their children’s formal education in Nine Year Basic Education schools (9YBE) in Rwanda. The study was conducted at Groupe Scolaire Cyabagarura in Musanze district where the poor performance of students in the Ordinary Level Exam of 2011 and other district tests were pointed at despite the great number of trained teachers in education found at the school being cited. This research involved various respondents including parents and their children as well as teachers in a bid to finding the root causes of the poor performance of these students. Given the nature of this study, both qualitative and quantitative methods were relied on so that the data from the involved and sampled informants could be analyzed effectively. To get this sample from each category, the researcher used the stratified systematic random sampling method. He also used the interview guide, questionnaires, observation and documentation as the approaches to deeply explore the research problem. With the help of the investigation made, our findings indicated poor parents’ participation in helping their children to perform well at school as all our results from table 1 to 6 showcased. With the view of all this research purpose, we drew the attention to various concerned people in education setting that 9YBE program and policy cannot be attained without any active collaboration of parents for encouraging and reminding their children to revise and do the school activities assigned to them by their teachers. Schools have to work hand in hand with teachers and parents for the sake of the students’ good performance
Rapid Synthesis of CuFeS2 Nanoparticles Using Microwave Irradiation for Therapeutic Applications

Nanoparticles (NPs) are a class of new materials, with less than 100 nm in diameter and exhibit enhanced size dependent properties as compared to larger particles of the same material. We describe the rapid microwave irradiation protocol for the synthesis of ternary CuFeS2NPs, by reacting Cu, Fe, and S precursors in aqueous system. This one-pot facial synthesis strategy features shorter reaction time, easy process control, low energy consumption, and absence of a temperature gradient. The obtained NPs morphology and crystallite was characterized using TEM and XRD techniques, respectively. Furthermore, the obtained NPs, magnetic and fully water soluble, showed broad optical absorbance from the visible to the near infrared region could be applied for photothermal therapy and magnetic resonance imaging applications for future biomedical use.
Mathematical modeling of debittered apricot (Prunus armeniaca L.) kernels during thin-layer drying

ABSTRACT In this paper, the effect of drying temperature was investigated on the drying kinetics of the debittered and skin-removed apricot kernels, and the thin-layer drying model was also constructed by fitting the eight mathematical models such as Henderson and Pabis, Logarithmic, Midilli et al. and Approximation of diffusion model, Among them, the Midilli et al. and Approximation of diffusion models were selected to describe the drying characteristics of apricot kernels due to their relatively higher coefficient of determination (R2), and lower chi-square (χ2) and root mean square error (RMSE). Beyond that, the moisture loss and the effective moisture diffusivity (Deff) of the kernels during drying were also described and estimated by Fick’s second law and the data obtained, getting a range of 1.39×10−8 to 3.5×10−8 m2/s, respectively. The temperature dependence of the diffusivity coefficients was described with the activation energy (Ea) value of 16.5 kJ/mol. All these results are beneficial for better understanding and controlling the drying of apricot kernels.
Design of High-Q Passband Filters Implemented Through Multipolar All-Dielectric Metasurfaces

We propose a novel class of ultrathin high-Q passband filters designed by properly combining different multipolar resonances sustained by an all-dielectric metasurface. A rigorous analytical model, based on surface impedance homogenization and accounting for the effects of both dipolar and the quadrupolar contributions to the overall scattering response, is derived and verified through numerical simulations. Then, it is described how it is possible to engineer the interactions between dipoles and quadrupoles in a metasurface made by core–shell spherical elements to design ultrathin and broadband dielectric mirrors with a narrow transmission band. The proposed filters exhibit high $Q$ -factor resonances and can be implemented using realistic materials at either microwave or optical frequencies. Finally, we discuss how the proposed dielectric filters can be used to design self-filtering aperture antennas exhibiting higher out-of-band selectivity compared with those implemented through metallic resonators.
Test for the Production and Assay of the Proteolytic Activities of Halophilic Bacteria and Archaea Isolated from Algerian Hypersaline Environments

: The present work was carried out on 133 halophilic strains isolated on MGM (Modified Growth Medium) medium with 12 and 23% (w/v) of salt. A screening of the extracellular proteolytic activities, carried out on the same medium supplemented with casein or gelatin at 1% (w/v), allowed us to select 24 bacterial and 21 archaeal strains presenting a precipitate around the colonies for casein and/or a translucent halo (after addition of Frazier’s reagent) for gelatin. The enzymatic test was performed on liquid medium in microculture in a 2 mL Eppendorf tube. The assay of the proteolytic activity, using Azocasein as substrate, followed two protocols—the first with PBS and the second with Tris HCl, with positive and negative controls—and demonstrated interesting results for 10 strains among the 45 tested including five bacteria and five archaea. These underwent morphological, physiological and molecular characterizations based on amplification and sequencing of the 16S ribosomal RNA gene.
Modelling population dynamics in activated sludge systems

A biokinetic model is introduced which allows for the prediction of the development of flocforming, filamentous and ‘Nocardia9 type microorganisms in aerobic activated sludge systems with a variety of different flowschemes and operating conditions. The model is based on the competition of the organisms for different organic substrates. For ‘Nocardia9 a flotation process is introduced which allows for a longer residence time of these organisms as compared to the SRT. The model predicts activated sludge composition and behavior in accordance with a variety of experimental observations.
Spatiotemporal Modeling of Nutrient Retention in a Tropical Semi-Arid Basin

The Sokoto-Rima basin defines the natural and socioeconomic lifeblood of northwestern Nigeria. Its agrarian nature is an indication of significant dependence on the supply of ecosystem services from its various rivers, streams, and wetlands. However, nitrogen (N) and phosphorus (P) constitute a great portion of chemical fertilizers used to enhance crop yields and poor management of these portend great threats for water quality. The overarching objective of this study was to examine the extent of spatial variation of nutrient dynamics in the Sokoto-Rima basin between 1992 and 2015 using the nutrient delivery ratio (NDR) model of InVEST (Integrated Valuation of Ecosystem Service and Tradeoffs) software. Landcover, precipitation, digital elevation, and biophysical variables were the principal datasets employed as software input. The result of the study showed that the surficial N load is almost 15-fold of P in the Sokoto-Rima basin. Over the period of study, cultivated areas and rivers were spatially detected as nutrient sources and sinks respectively. The subsurface nutrient load is dominated by P while the amount of N load is insignificant. The trend of nutrient export is linearly defined: with 0.87% and 1.7% increase in N and P export respectively during 1992-2015. N and P exports vary spatially with a north-south increase-decrease index. Critical length and threshold are highly sensitive to changes in the parameterization of the NDR model. Thus, synergistic cultivation practices such as agroforestry should be extended to existing crop cultivation complexes to curtail nutrient enrichment in the Sokoto-Rima basin and ensure environmental sustainability.
Institutional Responsibility for Mass Atrocity Crimes with Thomas Pogge

Humanitarian intervention and the Responsibility to Protect (R2P) are currently limited and encumbered by a pervasive absence of a political will. In states’ calculations, political considerations are constantly winning-out over the moral considerations of saving at-risk segments of our planet. While institutional and legal reforms undoubtedly play a role in addressing this challenge, such reforms and structures have existed for generations now, and have largely failed to bridge this gap from ‘moral necessity to political action’. What has been lacking is a moral understanding of humanitarian crises that is capable of reliably motivating the international community to undertake remedying actions, rather than merely expressions of concern. Such a moral foundation is achievable through institutional cosmopolitanism, an understanding of humanitarian intervention as satisfactions of our negative duties, and specifi cally the work of Th omas Pogge.
The Effect of Down Syndrome Biochemical Markers on Predicting Severity of Preeclampsia

Objective: This study aims to determine whether it is possible to predict preeclampsia by comparing postpartum results and test results of the pregnant women diagnosed with preeclampsia, whose first and/or second trimester screening tests were accessible, and to demonstrate the predictability of severity and week of onset.Background: 204 patients underwent renal transplantation in our center and 84 of them were female. Five of our patients (one of them had two births) gave birth to a total of 6 pregnancies.Method: 135 patients were diagnosed with preeclampsia and their first and/or second trimester screening tests were accessible, and 366 control participants gave birth to a healthy baby between 37-41 weeks after standard follow-up period for pregnancy and their screening tests were also accessible.Results: The study results show that the first trimester maternal serum PAPP-A level is significantly low in preeclamptic pregnant women, and that the second trimester maternal serum AFP and hCG levels are significantly high and uE3 levels are significantly low The results also suggest that the first and second trimester Down syndrome biochemical markers can be used in preeclampsia screening.Conclusion: Among these markers, uE3 is the parameter which affects the possibility of preeclampsia the most. However, the first and second trimester Down syndrome biochemical markers are not effective in predicting the severity and onset week of preeclampsia.
Cholinesterase from the Liver of Diodon hystrix for Detection of Metal Ions

The discharge of industrial effluents into nearby water bodies affects the inhabitants including living organisms. The presence of foreign materials such as heavy metals can be a threat to the ecosystem as they are enormously carcinogenic even though in minute concentration. Hence, an economical and time-efficient preliminary screening test is crucial to be developed for the detection of heavy metals, prior to employment of high technology instruments. In this study, cholinesterase (ChE) from Sabah porcupine fish, Diodon hystrix was purified to test for its potential as an alternative biosensor in detecting metal ions. Few enzymatic parameters including specificity of substrate, temperature and pH were applied to determine its optimal enzymatic activity. ChE enzyme was found to be more sensitive towards the presence of substrate, butyrylthiocholine iodide (BTC), in contrast to acetylthiocholine iodide (ATC) and propionylthiocholine iodide (PTC) with the effective coefficient at 7193, 3680.15 and 2965.26 Vmax/Km, respectively. Moreover, the extracted ChE enzyme showed the optimum activity at pH 9 of 0.1 M Tris-HCl and at 25°C to 30°C range of temperature. When subjected to heavy metals, ChE enzyme was significantly inhibited as the enzyme activity was reduced in the sequence of Hg > Ag > Cr > Cu > Cd > Pb ≥ Zn > As. As a conclusion, the partially purified ChE enzyme proved its sensitivity towards metal ion exposure and can be used as an alternative method in screening the level of contamination in the environment.
Behavioral disorders in children

The child and adolescent psychopathology have been categorized into two broad classes, emotional (also called internalizing) and behavioral (externalizing) problems (disorders). In this paper, we describe the behavioral disorders in children. Behavioral problems are characterized by behaviors that are harmful and disruptive to others. Disruptive behavior disorders include attention deficit hyperactivity disorder (ADHD), conduct disorder and oppositional defiant disorder. These behavioral disorders, attention deficit hyperactivity disorder (ADHD), oppositional defiant disorder and conduct disorder in childhood and adolescence period will be discussed in more detail.
Employer Brand and Innovative Work Behaviour: Exploring the Mediating Role of Employee Engagement

Over the recent decade, the employer brand has gained significant interest among academicians and practitioners and it highlights the labour market’s strength and uniqueness. However, from the employees’ perspective, employer brand outcomes are not rigorously studied and do not capture the entire scenario. Thus, this study postulates the role of employee engagement in the relationship between the employer brand and work behaviour. Four hundred responses were collected using judgemental sampling. The selected sample includes, Indian Informational Technology (IT) firms included in the “most attractive employer” titles chosen for the “Randstad Employer Brand Awards 2018”. The results indicate that the employer brand predicted innovative work behaviour, and employee engagement partially mediates the associations. The study has broader implications to the IT sector as it helps to understand the role of the employer brand in innovative work behaviour and facilitates the need for an internal employer brand that provides engagement and opportunities to be innovative.
Electron Paramagnetic Resonance Of Transition Ions

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Synthesis and antibacterial properties of quaternary ammonium derivative of polyethylenimine

: The quaternary derivative of branched polyethylenimine (bPEI-met) was synthesized and its antibacterial activity against Gram-positive bacterium ( Staphylococcus aureus ) and Gram-negative bacterium ( Escherichia coli ) was studied. The values of minimum inhibitory concentration ( MIC ) and minimum bactericidal concentration ( MBC ) of bPEI-met against mentioned bacteria were determined. These indicated that bPEI-met could be considered as an effective alternative to antibiotics for the treatment of selected bacterial strains. The results obtained can be useful in search for drugs allowing treatment of antibiotic resistant bacterial strains.
Evaluation of industrial sources contribution to atmospheric particulate matter

The paper describes a method for the evaluation of the contribution of specific industrial sources to atmospheric particulate matter (PM). The method is based on the full chemical characterization of PM, obtained by an integrated use of different analytical techniques; the results are then interpreted by considering the dilution properties of the lower atmosphere, traced by the measurement of natural radioactivity. The determination of the main components of PM (macroelements, ions, elemental carbon, organic matter) allows a satisfactory mass closure. Major chemical components are then grouped into the main macro-sources of PM: soil, sea-spray, inorganic compounds from secondary reactions, vehicular emission, organics. Minor sources, which usually include industrial emissions, are identified by minor and trace elements. Total elemental concentrations are chemically fractionated by solubility; this allows an increase in their selectivity as source tracers and an estimation of their bioavailability and environmental mobility. Suitable tracers of the studied industrial plants are selected by studying the variability of their daily concentration and by evaluating their spatial distribution. The effects due to the variations of both meteo-climatic conditions and emission rates are uncoupled by considering the dilution properties of the lower atmosphere; each tracer is thus associated to occasional or constant sources and to local or diffused sources. Viene descritto un metodo per la valutazione del contributo fornito da una particolare sorgente industriale alle polveri sospese in atmosfera. Il metodo si basa sulla caratterizzazione chimica del particolato, effettuata mediante l’integrazione di diverse tecniche analitiche, e sull’interpretazione dei dati ottenuti alla luce delle condizioni di rimescolamento atmosferico, tracciate mediante la misura della radioattivita naturale. La determinazione analitica dei componenti piu abbondanti (ioni inorganici, macro-elementi, carbonio elementare e carbonio organico) permette di quantificare il contributo delle principali macrosorgenti (prodotti di combustione, suolo, aerosol marino, inorganici secondari e organici). L’identificazione dei traccianti di sorgente piu idonei viene effettuata sulla base delle variazioni spaziali e temporali delle concentrazioni delle singole specie, disaccoppiando l’influenza dei parametri meteo-climatici da quella della variazione dell’intensita delle sorgenti emissive.
Uncovering Two Decades of Open Innovation Benefits: A Qualitative Meta-Analysis

Research on open innovation (OI) benefits has received growing interest from researchers and practitioners in the past two decades. But it lacks valuable frameworks that categorize these benefits. This paper aims to explore OI benefits since 2003 and to come up with a comprehensive framework categorizing them. To do so, the authors conducted a qualitative meta-analysis of 708 articles from the Scopus platform by mobilizing IRAMUTEQ 0.7 Alpha2 and NVivo12 solutions for text mining and qualitative content analyzes. The findings highlight six categories of the following interrelated OI benefits: (1) Performance, (2) innovation process, (3) market, (4) product and service, (5) knowledge, and (6) customer. This classification offers researchers constructs for potential models of OI impacts and brings innovation managers potential indicators for the dissemination and absorption of OI practices by organizations.
Regional worlds: from related variety in regional diversification to strategic coupling in global production networks

ABSTRACT This annual lecture paper bridges two influential but parallel literature strands on evolutionary economic geography (EEG) and global production networks (GPN). It argues that both strands are premised on their different conceptions of ‘regional worlds’ of production – a more endogenous view in EEG and a more relational view of ‘interconnected worlds’ of production in GPN studies. Drawing on EEG’s core concept of related variety in regional diversification, the paper theorizes how regional strategic coupling with GPN can serve as a causal mechanism for realizing related diversification by highlighting the importance of extra-local/regional linkages and production network dynamics.