Miracle-dz/UniFAR-FTUs huggingface dataset:
AN EFFICIENT APPROACH TO MANAGE DOMESTIC WASTEWATER IN SMART CITY

Abstract. The adoption of an ecological sanitation system, meeting the requirements hygienic and sanitary, constitutes a feasible and technically and economically acceptable solution in the future smart city. This new sanitation concept has the advantage of solving the problems of pathogens of human waste at source, thus offering the possibility of reusing them after treatment (recycling) in order to improve the standard of living of the population and protect the environment. The aim of this study is to evaluate the efficiency of a vertical Multi-Soil-Layering system (MSL) system to treat domestic wastewater under three hydraulic loading rates: 250 L/m2/day, 350 L/m2/day and 500 L/m2/day, in Moroccan conditions. To do this, a vertical MSL system measuring 20cm × 60cm × 78cm (L × W × H) was designed to treat domestic wastewater and his performance was investigated. The results showed high removal of organic matters and nutrients under the three hydraulic loads tested; the performance averages recorded are upper than 84 % for organic matters, 83.1 ± 7.2 % for ammonium and 72.4 ± 14.1 % for orthophosphate. The quality of the treated wastewater was evaluated according to Moroccan reject limit value. Consequently, this system could be considered an effective solution to be adopted for decentralized domestic wastewater treatment in Moroccan conditions.
Linewidth Enhancement Factor in the Quantum Dots: Non-Thermal Coupling Case

A theory of gain, refractive index, and linewidth enhancement factor in the quantum dots (QDs) in the nonthermal coupling (NTC) case is discussed. The ground and excited state transitions are included. Effect of parameters, like recombination time and radiative transition time, is studied. The study shows that the QDs can have zero linewidth enhancement factor. The present review covers important patents useful in this field.
Proof-of-Concept of the Time and Spectral Optical Aggregation Network

In this article, we present the proof of concept (PoC) of the time and spectral optical aggregation (TISA) approach that allows a better filling of the time and spectral resources of an optical transport network. Some innovative solutions have been implemented, such as a new and fast tunable laser that permits to color the bursts sent in the TISA network, as well as their transmission with both DP-QPSK and DP-16QAM coherent multi-band (MB) OFDM formats. BER versus OSNR measurements have been achieved showing less than 1-dB penalty in back-to-back or after transmission. The tolerance of bursts against frequency mismatch occurring between the transceiver and the optical filter that extracts a sub-band inside the MB-OFDM signal has also been evaluated, and ∼1.5 GHz tolerance has been measured for bursts of ∼6.7 GHz bandwidth. Furthermore, in order to mitigate the transients in the coherent receiver that faces alternatively the presence or absence of signal, a novel channel estimator based on a sliding window has been introduced. Its efficiency and performance has been experimentally validated, and its ability to suppress the error threshold of the BER versus OSNR curves has been demonstrated. By the experimental proof of concept delivered here, the ability of the TISA network to perform with a good level of performance the transparent routing and sub-wavelength aggregation/disaggregation in the time and spectral domains simultaneously has been established. Beyond the important and crucial aspect of the optimal filling of the optical resources, our PoC demonstrate the ability of the TISA approach to push the flexibility of an optical transport network at its limit while allowing a cost and power consumption limitation obtained by the removal of costly and power-hungry optical-electrical-optical regenerators.
Photofading of azo dyes: a theoretical study

The light fastness of a number of azo dyes has been investigated using all-valence molecular orbital methods, AM1 and PM3. The results of molecular orbital calculations are used to obtain both highest occupied molecular orbital and lowest unoccupied molecular orbital frontier electron density, which, respectively, can account for the propensity of the electrophilic and nucleophilic attack at a particular atom in a molecule. The highest occupied molecular orbital and lowest unoccupied molecular orbital superdelocalisability have also been obtained to explain the order of light fastness values in different dyes of a particular series. In addition, attempts have been made to correlate the light fastness values with the difference in energy of the highest occupied molecular orbital of the dye and the lowest unoccupied molecular orbital of the singlet oxygen.
Recognising participation in virtual exchange: open badges and the CLAVIER contribution

The CLAVIER (Connected Learning And Virtual Intercultural Exchange Research) network grew rhizomatically as a result of open practice (Blyth, 2019), which is central to the CLAVIER approach. Informed by the field of Computer-Mediated Communication (CMC), the network has provided a safe space to experiment with the development and implementation of open badges to support sustained participation in Virtual Exchanges (VEs). This case study describes the rationale for CLAVIER’s open badge framework and its links with the Erasmus+ VE (E+VE) badges.
Distributed-memory parallel computation of a forced, time-dependent, sooting, ethylene/air coflow diffusion flame

Forced, time-varying laminar flames help bridge the gap between laminar and turbulent combustion as they reside in an ever-changing flow environment. A distributed-memory parallel computation of a time-dependent sooting ethylene/air coflow diffusion flame, in which a periodic fluctuation (20 Hz) is imposed on the fuel velocity for four different amplitudes of modulation, is presented. The chemical mechanism involves 66 species, and a soot sectional model is employed with 20 soot sections. The governing equations are discretised using finite differences and solved implicitly using a damped modified Newton's method. The solution proceeds in parallel using strip domain decomposition over 40 central processing units (CPUs) until full periodicity is attained. For forcing amplitudes of 30%, 50%, 70% and 90%, a complete cycle of numerical predictions of the time-resolved soot volume fraction is presented. The 50%, 70% and 90% forcing cases display stretching and pinching off of the sooting region into an isolated oval shape. In the 90% forcing case, a well-defined hollow shell-like structure of the soot volume fraction contours occurs, in which the interior of the isolated sooty region has significantly lower soot concentrations than the shell. Preliminary comparisons are made with experimental measurements of the soot volume fraction for the 50% forcing case. The experimental results are qualitatively consistent with the model predictions.
Paramagnetism and antiferromagnetic d–d coupling in GaMnN magnetic semiconductor

The magnetization of Ga1−xMnxN (x<0.1) crystals was measured as a function of the magnetic field and temperature. Paramagnetic behavior typical of spin S=5/2 expected for Mn2+ (d5) magnetic centers was observed in the temperature range of 2 K<T<300 K. On the other hand, antiferromagnetic coupling between Mn ions was clearly visible. The nearest neighbor (NN) coupling constant JNN/kB=−1.9 K was estimated from the temperature dependence of the magnetization.
Syntheses and mesomorphic properties of novel triphenylene liquid crystals with 15-crown-5 unit as side-chain

Two novel triphenylene liquid crystals with 15-crown-5 unit as side-chain 4a and 4b were designed and synthesised by simple procedures in ideal yields. Their structures were confirmed by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (1H NMR), electrospray ionization mass spectrometry (ESI-MS) and elemental analysis. Their liquid-crystalline behaviours before and after complexation with metallic salts were studied by differential scanning calorimetry, polarising optical microscopy and X-ray diffraction. Neat compounds 4a and 4b show mesophase with triphenylene column, while complexes of 4a and 4b with metallic salts exhibit no mesophase but higher melting point.
Soil Management: A World View of Conservation and Production

Soil Characteristics and Classification Why World Hunger? Soil Water, Drainage, and Irrigation Organic Matter, Microorganisms, and Soil Structure Nitrogen Problems and Rotations Fitting Crops to the Soils Water Conservation and Erosion Control Land Capability and Soil Management Tillage and Planting Methods Soil Testing Tissue Testing Plant Symptoms of Nutrient Deficiency Soil Acidity and Liming Plant Nutrients and Fertilizers Cropping Systems and Management Practices: The North Central States Cropping Systems and Management Practices: Southern and Western States Soil Management for Gardens, Greenhouses, and Lawns Shifting Cultivation Multiple-Cropping Without and With Interplanting Forests, Desertification, Erosion Management of Arid Lands and Water Management Organic Farming (Histosols).
The atheroprotective effects of Vitamin E in hypercholestrolemic male rabbits

Background: Atherosclerosis remain as a major health problem occasioning early death in much of the world’s people. The ancestry of this diseases related to genetic influences and dietary improperly. The main sources of dietary cholesterol are eggs, meat, and milk products, which induced hypercholesterolemia and atherosclerosis in some species of animals. Materials and Methods: Eighteen local domestic male rabbits will be randomly allocated into 3 groups, 6 in each Group: Group I (n = 6), control; Group II (n = 6), rabbits were receiving 1% cholesterol diet (induced untreated group); Group III (n = 6), 1% cholesterol-diet + Vitamin E (400 mg/kg daily orally). After zero time, four weeks and eight weeks of the study Blood samples were collected for lipid profile (triglycerides, total cholesterol, high density lip protein and serum IL-6, serum high sensitive C-Reactive Protein hs-CRP, serum MCP-1 and serum HMG-box1. Results: Data of this present study has shown that, high fat diet diet caused an increase in serum level of, TG, LDL-C, VLDL-C and TG were increased and decrease serum level of HDL-C compared with the control group in the rabbits feed hyper cholesterolemic diet (P < 0.05). Histologically all induced-untreated rabbit showed increase aortic intima-media thickness (P < 0.05). Vitamin E treated cause significant change on lipid profile (P < 0.05) compared with the induced untreated group. in compared with induced untreated group (P < 0.05), Vitamin E showed significant the change in hs-CRP, IL-6, MCP-1 and HMG-box1.
Stress Testing U.S. Leveraged Corporates in a COVID-19 World

This paper analyzes a group of 755 firms, with aggregate indebtedness of US$6.2 trillion, to assess the solvency risks and liquidity needs facing the U.S. corporate sector based on projections of net income, availability and cost of funding, and debt servicing flows under different stress test scenarios. The paper finds that leveraged corporates account for most of the potential losses arising from the macroeconomic stresses associated with the COVID-19 crisis, with a concentration of these losses in the oil and gas, auto, and capital and durable goods manufacturing sectors. However, potential losses from corporate debt write-downs appear to be a fraction of banks’ capital buffers and, given the size of the leveraged segment and the relatively long duration of that sector’s debt, the near-term liquidity needs of these corporates appear modest. Corporate stresses could, however, amplify the current economic downturn—as firms cut investment spending and reduce employment—potentially giving rise to significant indirect losses for the financial system.
Using social media to recruit study participants for a randomized trial for hypertension

Abstract Aims The present study aimed to evaluate the potential of social media as an approach to recruit hypertensive subjects. Methods and results In addition to conventional trial recruitment, Facebook ads were run. Over a 115-day recruitment period, Facebook reached 5.3 million people in 168 separate campaigns run in the proximity of 19 sites in the USA and 14 sites in Europe. A total of 182 839 participants (3.4%) clicked on the ad; of those 10 483 subjects (5.7%) completed a dedicated questionnaire. This resulted in 3632 potential candidates. A total of 285 potential candidates were recruited by various recruitment strategies in the specified time period, of which 184/285 (64.6%) came from Facebook. When comparing Facebook with a 7-day radio spot in the same time period, 48 radio spots were launched; resulting in nine inquiries with eventually five potential candidates and two consents. Conclusion Targeted social media was a successful and efficient strategy to recruit hypertensive subjects.
Models Establishment for Predicting Interaction between Tillage Practices and Some Selected Engineering Properties of Cassava (Manihot esculenta) Tubers

Enough technical data on the physical and mechanical properties of tubers are needed for machine design and crop parameters in modeling and designing cassava processing. The main objective of this study was to establish models for forecasting interaction between the tillage practices and some physical and mechanical properties of cassava tubers. Eight tillage practices have been used and are coded in alphabets such as, ploughing + harrowing (A); ploughing + harrowing + ridging (B); manual ridging (C); flat manual clearing (D); ploughing + harrowing + manual digging to a depth of 30 cm + 10 cm of saw-dust placed at the base (E); ploughing + harrowing + ridging +10 cm of saw-dust placed at the base (F); manual ridging + 10 cm of sawdust placed at the base (G) and manual digging to a depth of 30 cm + 10 cm of saw-dust placed at the base (H). The experiment was conducted in TME (Tropical Manihot esculenta) 419 with two soil conditions using recommended nutrient dosage. The experimental design was split-split plot Original Research Article Adetola et al.; AJAAR, 14(3): 34-48, 2020; Article no.AJAAR. 60338 35 design with three replications. The physical and mechanical properties of cassava were determined 10 months after planting using standard equations and methods. Statistical Package for Social Science window 21 versions was used for data analysis. Models were developed using Linear Regression. Manual Ridging + 10 cm Sawdust placed at the base + TME 419 + Rainfed + 933.75 kg/ha of NPK 15:15:15 fertilizer tillage practice gave the highest yield of 15.02 tons/ha with uniform physical and mechanical properties. The model equations revealed that tillage had positive impact on the selected physical and mechanical properties of cassava tubers such as length, width, thickness, size, aspect ratio, surface area, sphericity, roundness, unit mass, unit volume, true density, bulk mass, bulk volume, bulk density, porosity, angle of repose, coefficient of static friction, compressive extension at break, compressive strain at break, compressive load at break, compressive stress at break, energy at break, modulus automatic, compressive load at yield, compressive extension at yield, and compressive strain at yield and compressive stress Models developed could be used by engineers in designing improved equipment and machineries for harvesting and processing of cassava tubers into useful products.
Production of Protein Hydrolysate Containing Antioxidant and Angiotensin -I-Converting Enzyme (ACE) Inhibitory Activities from Tuna (Katsuwonus pelamis) Blood

Tuna blood (TB) was subjected to enzymatic hydrolysis. The effects of the relationship of hydrolysis time (30–180 min) and enzyme concentration (0.5–3.0% w/w protein) on the degree of hydrolysis (DH), yield, antioxidant and angiotensin-I-converting enzyme (ACE) inhibitory activities were determined. The response surface methodology (RSM) showed that TB hydrolysis’s optimum conditions were hydrolysis for 180 min and Alcalase, Neutrase or Flavourzyme at 2.81%, 2.89% or 2.87% w/w protein, respectively. The hydrolysates with good DH (40–46%), yield (3.5–4.6%), the IC50 of DPPH (0.8–1.6 mg/mL) and ABTS (1.0–1.4 mg/mL) radical scavenging activity, ferric reducing antioxidant power (FRAP) value (0.28–0.65 mmol FeSO4/g) and IC50 of ACE inhibitory activity (0.15–0.28 mg/mL) were obtained with those conditions. The TB hydrolysate using Neutrase (TBHN) was selected for characterization in terms of amino acid composition, peptide fractions and sensory properties. The essential, hydrophobic and hydrophilic amino acids in TBHN were ~40%, 60% and 20% of total amino acids, respectively. The fraction of molecular weight <1 kDa showed the highest antioxidant and ACE inhibitory activities. Fishiness and bitterness were the main sensory properties of TBHN. Fortification of TBHN in mango jelly at ≤ 0.5% (w/w) was accepted by consumers as like moderately to like slightly, while mango jelly showed strong antioxidant and ACE inhibitory activities. TBHN could be developed for natural antioxidants and antihypertensive peptides in food and functional products.
Exploring the determinants of choosing an academic destination under a short-term mobility: a cross-cultural comparison of Poland and Portugal

ABSTRACT The present study attempts to propose a model integrating different factors that influence the decision-making process of choosing foreign academic destinations for short-term mobility. The theoretical model will be supported by empirical research carried out using a questionnaire administered to students who participated in an exchange programme in Poland (N = 135) and in Portugal (N = 137). This paper contributes to literature by empirically investigating the pull factors affecting the international students’ decision-making process in three dimensions: the country, the city and the university. The findings have implications not only for universities but, for that matter, for local and national governments.
Latent heats of phase transformations in iron and steels

The latent heat and the temperature of phase transformations in iron and steel have been measured by differential scanning calorimetry (DSC). The samples were provided in the form of cylinders 3 mm in diameter and 3 mm long. The tests on the DSC apparatus were conducted with a heating process to 1000 °C at a constant rate of 5 °C min - 1 and with a cooling process to 300 °C at the same rate. The latent heat of A 3 transformation of iron on heating was 16 kJ kg - 1 and on cooling 19 kJ kg - 1 . The relationship between the temperature of phase transformation and the carbon content of the steel was examined and made clear. For carbon steel, the latent heat on heating and cooling approximately correlated with the carbon content.
Short-term changes in anaerobic oxidation of methane in response to varying methane and sulfate fluxes

Short-term changes in anaerobic oxidation of methane in response to varying methane and sulfate fluxes G. Wegener and A. Boetius Max Planck Institute for Marine Microbiology, Bremen, Germany Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany Jacobs University Bremen, Bremen, Germany Received: 23 June 2008 – Accepted: 28 June 2008 – Published: 8 August 2008 Correspondence to: G. Wegener (gwegener@mpi-bremen.de) Published by Copernicus Publications on behalf of the European Geosciences Union.
An experimental study on SrB4O7:Sm2+ as a pressure sensor

A pressure sensor of SrB4O7:Sm2+ has been synthesized and the pressure shift of its 7D0-5F0 fluorescence line has been recalibrated at room temperature up to 48 GPa and 127 GPa hydrostatically and non-hydrostatically, respectively. Different from previous study, our results show that the calibrated relation in the quasi-hydrostatic pressure environment is quite different from that in the non-hydrostatic pressure environment. The yield strength of SrB4O7:Sm2+ as a function of the pressure has been determined by the pressure gradient method in a diamond anvil cell. The results show that the yield strength of SrB4O7:Sm2+ increases from 2.85 GPa at a pressure of 7.9 GPa to 4.22 GPa at 25.4 GPa and is much smaller than that of ruby. The relatively small high-pressure yield strength of SrB4O7:Sm2+ is at the same level of the most sample materials. This would result in a small pressure difference with the coexisting sample, thus lead to a small error in the pressure measurement. The smaller yield strength and ex.
Research on Dynamic Political Sentiment Polarity Analysis of Specific Group Twitter Based on Deep Learning Method

The article introduce a method to analyzing the dynamic political sentiment polarity of American politicians’ tweets within a fixed period of time to assist analysts in judging the direction of American politics and the future trend of China-US relations. This research is applied in the field of think tanks or intelligence analysis. The service targets are intelligent analysts, and the data is the tweet text data sent by a specific group in a fixed time period. We propose an architecture that combines multiple deep learning models and use a dedicated tweet data set to construct a specific group to obtain an sentiment polarity multi-classifier, and then introduce the time characteristics of tweets, and finally obtain the dynamic political sentiment polarity of politicians. The US politician tweets data set proposed in this article verifies that the proposed comprehensive architecture is better than traditional deep learning methods in this task, and the accuracy of the classifier verification set reaches 80.66%. According to the sentiment polarity judgments of 20 US governors and senators, the success rate is 75%. The analysis of individual dynamic political sentiment polarity can provide effective help and intelligence support for analysts. The method in this paper effectively uses a variety of deep learning techniques to assist analysts to obtain more accurate dynamic political sentiment polarity from massive Twitter text data.
A REVIEW OF NON-CONVENTIONAL METHODS FOR THE DESULFURIZATION OF RESIDUAL FUEL OIL

ABSTRACT Sulfur removal from residual fuel oil has received increasing attention in recent years mainly for the preparation of clean feedstocks for downstream conversion units and to meet the new specifications for petroleum products. This review presents discussion of non-conventional methods of fuel oil desulfurization other than hydrodesulfurization (HDS). These methods include oxidation, electrochemical, sodium, alkali, chemical treatment, and biodesulfurization.