Miracle-dz/UniFAR-FTUs huggingface dataset:
AUTOMATIC IDENTIFICATION AND DATA CAPTURE (AIDC) AND ITS TECHNOLOGIES

“AIDC refers to the methods of automatically identifying objects, collecting data about them, and entering that data directly into computer systems (i.e., without human involvement)” – Wikipedia. The rise of computers in business made AIDC technologies essential. Automatic identification and data capture (AIDC) is the use of technology to provide direct data entry to a computer, or other micro-processor controlled system, without resorting to manual methods of data-entry. AIDC technologies eliminate two error-prone and time-consuming activities: manual data collection and data entry. AIDC bypasses these two steps by providing a quick, accurate, and cost-effective way to collect and enter data. The alternative to AIDC is manual data collection and retention; this suffers from higher rates of error, greater requirements on time and higher labour costs than AIDC. AIDC technologies provide a reliable means not only to identify but also to track items. It is possible to encode a wide range of information, from basic item or person identification to comprehensive details about the item or person e.g. item description, size, weight, colour, etc. This paper presents an overview on AIDC infrastructure and its various technologies of AIDC with their limitations. Each technology is best suited based on circumstances and cost.
Thermal Lens Spectroscopy for Quantitative Determination of a Cu(II) Complex With an 8-Aminoquinoline Derivative in Tap Water and Mining Wastewater Samples Using a Dual Beam Technique

Abstract This article describes the quantitative determination of Cu(II) using thermal lens spectrometry. The chromogenic reaction involving Cu(II) and 5-(4-sulphophenylazo)-8-aminoquinoline in alkaline solution was studied in different experimental conditions such as pH, ligand concentration, methanol volume, and presence of interfering ions. A collinear dual beam set-up has been used for direct quantitation in water samples without a pre-concentration step. The optimized conditions provided a linear calibration in the concentration range from 3.0 to 15.0 × 10−7 mol L−1. The detection and quantitation limits were 6.13 × 10−8 and 2.04 × 10−7 mol L−1, respectively. Resultantly, an application to Cu(II) determination in tap water (recovery 99.8–103.3%) and mining (synthetic) wastewater (95.3–98.0%) shows relative SDs ≤ 3.1%. The method is presented as a new alternative for the direct Cu(II) determination in real samples.
Book Reviews: An Introduction to Corpus Linguistics

This timely book joins the growing number of leading introductory volumes on corpus linguistics, including McEnery and Wilson (1996) and Biber, Conrad, and Reppen (1998). The former volume represents the first-ever introductory textbook on corpus linguistics; the latter, also recently published, is strong on reporting many of the authors' own analyses of speech and writing and providing "methodology boxes" for the computer processing of text using the corpus-based paradigm. Space constraints do not permit the comparison of all three volumes, especially in relation to the use of the corpus-based approach for natural language processing. In the present instance, it is to his credit that Graeme Kennedy has single-handedly achieved the difficult task of systematically providing an historical overview and evaluating the significance of many important studies that currently define the corpus-based approach. The book is organized as follows:
STUDY OF ROASTING EFFECT ON NUTRITIVE AND ANTIOXIDANT PROPERTIES OF LEAFY VEGETABLES CONSUMED IN NORTHERN CÔTE D’IVOIRE

African leafy vegetables (ALVs), also known as African spinach, contribute significantly to household food security and add variety to cereal-based staple diets. Five leafy vegetable species (Amaranthus hybridus, Andasonia digitata, Ceiba patendra, Hibiscus sabdariffa and Vigna unguiculata) that are used for sauce preparation in Northern Cote d’Ivoire were subjected to roasting in order to evaluate the impact of this non conventional processing method on their nutritive value and antioxidant properties. This study showed that longer time (higher than 2 min) of roasting at 180-200°C caused negative impact with nutrients losses but positive impact by reducing anti-nutrients such as oxalates and phytates. The registered losses at 2 min were as follow: ash (0.09 – 6.58 %), proteins (1.22 – 29.31 %), vitamin C (77.56 – 89.01%), carotenoids (11.24 – 45.16 %) oxalates (2.30 – 20.51 %) and phytates (5.20 – 63.82 %). Roasting processing of the studied leafy vegetables highlighted a significant increase (4.77 – 32.71 %) of polyphenols contents coupled with increasing of antioxidant activity. Moreover, after 2 min of roasting time, the residual contents of minerals were: calcium (294.78 - 879.74 mg/100g), magnesium (175.87 - 480.54 mg/100g), potassium (159.72 - 371.33 mg/100g), iron (15.54 - 84.97 mg/100g) and zinc (13.27 - 38.85 mg/100g). All these results suggest that roasting of leafy vegetables (less than 2 min) may be used as alternative method of cooking in order to minimize nutrients losses and to contribute efficiently to the food security of Ivorian population.
Predicting bankruptcy among U.S. companies : a study based on Altman’s Z-score and Almamy’s J-UK model

This thesis aims to compare the famous two bankruptcy prediction models (the Altman Z-score and the U.K. based J-UK model) and investigates which model is a better predictor of bankruptcy when applied for US companies. Expectations were that Altman’s Z-score would have a lower predictive ability due to its focus on manufacturing firms and lower significance compared to when it was first revealed in 1968. It was also expected that the J-UK model would have a higher predictive power due to the additional cash flow variable. The models were tested based on a multiple discriminant analysis (MDA) which revealed that the discriminating ability of the J-UK model was significantly higher. However, both models had a high classification ability which is like due to my sample size and availability of data which was not the case when the J-UK model was initially applied in the UK.
Studies of laser-plasma interaction physics with low-density targets for direct-drive inertial confinement schemes

Comprehensive understanding and possible control of parametric instabilities in the context of inertial confinement fusion (ICF) remains a challenging task. The details of the absorption processes and the detrimental effects of hot electrons on the implosion process require as much effort on the experimental side as on the theoretical and simulation side. This paper describes a proposal for experimental studies on nonlinear interaction of intense laser pulses with a high-temperature plasma under conditions corresponding to direct-drive ICF schemes. We propose to develop a platform for laser-plasma interaction studies based on foam targets. Parametric instabilities are sensitive to the bulk plasma temperature and the density scale length. Foam targets are sufficiently flexible to allow control of these parameters. However, investigations conducted on small laser facilities cannot be extrapolated in a reliable way to real fusion conditions. It is therefore necessary to perform experiments at a multi-kilojoule energy level on medium-scale facilities such as OMEGA or SG-III. An example of two-plasmon decay instability excited in the interaction of two laser beams is considered.Comprehensive understanding and possible control of parametric instabilities in the context of inertial confinement fusion (ICF) remains a challenging task. The details of the absorption processes and the detrimental effects of hot electrons on the implosion process require as much effort on the experimental side as on the theoretical and simulation side. This paper describes a proposal for experimental studies on nonlinear interaction of intense laser pulses with a high-temperature plasma under conditions corresponding to direct-drive ICF schemes. We propose to develop a platform for laser-plasma interaction studies based on foam targets. Parametric instabilities are sensitive to the bulk plasma temperature and the density scale length. Foam targets are sufficiently flexible to allow control of these parameters. However, investigations conducted on small laser facilities cannot be extrapolated in a reliable way to real fusion conditions. It is therefore necessary to perform experiments at a multi-kilojou.
ADAPTIVE REGION GROWING FOR SKULL, BRAIN, AND SCALP SEGMENTATION FROM 3D MRI

Many of the diseases that are related to the nervous system are serious and can lead to pain, headaches, and many other symptoms. Magnetic resonance imaging (MRI), which produces detailed medical images for the diagnosis of nervous system-related diseases, offers an advanced approach to the study of these diseases. In this paper, a method for the automatic segmentation of the skull, scalp, and brain of 3D MRI imagery is proposed to help doctors diagnose numerous injuries and diseases. For the proposed method, the 3D MRI dataset was first transformed to 2D axial slices, which were grouped based on the skull shape. Second, the histogram method was used to compute the fitting rectangle boundary around the object. Third, the segmentation of the skull was performed using the proposed adaptive region growing method, depending on the slice groups. Finally, the brain and the scalp were segmented. The proposed method was tested and validated on 20 subjects from the BrainWeb database and seven adults from the Neurodevelopmental MRI database with the use of the tissues for the ground truth data. The performance of the proposed method was evaluated using the Dice percentage and a comparison with the other methods.
An Improved Hybrid-Bridge Transformerless Inverter Topology With Bidirectional Clamping and Reactive Power Capability

Transformerless inverters are getting popular in distributed photovoltaic power generation (PVPG) system due to its light weight, low cost, and higher efficiency in power conversion. However, the production of leakage current leads to severe electromagnetic interference and operational insecurity, which declines the reliability and efficiency of the overall system. Besides that many of the topologies have been addressed with real power injection capabilities in the literature. Therefore, in this paper, an improved hybrid-bridge (IH-B) inverter for transformerless PVPG system is proposed with 1) reduced leakage current by abolishing the fluctuations in common-mode voltage (CMV) due to switch junction capacitances and 2) reactive power capability with a modified sinusoidal pulsewidth modulation technique. This topology is constructed with the combination of bidirectional clamping branch and hybrid-bridge (H-B) inverter topology to maintain CMV at half of the dc-link voltage and ensure better quality of output waveforms at different power factors of the grid. Further, MATLAB simulation results of the IH-B and H-B topologies are presented and compared to prove the potential benefits of the proposed topology. Finally, a 500W prototype model is built and tested to validate the effectiveness of the IH-B topology in reduction of leakage current and reactive power capability.
Spatial Cell Disparity in the Colonial Choanoflagellate Salpingoeca rosetta

Choanoflagellates are the closest unicellular relatives of animals (Metazoa). These tiny protists display complex life histories that include sessile as well as different pelagic stages. Some choanoflagellates have the ability to form colonies as well. Up until recently, these colonies have been described to consist of mostly identical cells showing no spatial cell differentiation, which supported the traditional view that spatial cell differentiation, leading to specific cell types in animals, evolved after the split of the last common ancestor of the Choanoflagellata and Metazoa. The recent discovery of single cells in colonies of the choanoflagellate Salpingoeca rosetta that exhibit unique cell morphologies challenges this traditional view. We have now reanalyzed TEM serial sections, aiming to determine the degree of similarity of S. rosetta cells within a rosette colony. We investigated cell morphologies and nuclear, mitochondrial and food vacuole volumes of 40 individual cells from four different S. rosetta rosette colonies and compared our findings to previously published data on sponge choanocytes. Our analysis show that cells in a choanoflagellate colony differ from each other in respect to cell morphology and content ratios of nuclei, mitochondria and food vacuoles. Furthermore, cell disparity within S. rosetta colonies is higher compared to cell disparity within sponge choanocytes. Moreover, we discovered the presence of plasma membrane contacts between colonial cells in addition to already described intercellular bridges and filo-/pseudopodial contacts. Our findings indicate that the last common ancestor of Choanoflagellata and Metazoa might have possessed plasma membrane contacts and spatial cell disparity during colonial life history stages.
Informing the Misinformed: A Critical Analysis of Common Misconceptions of Open and Distance Learning Among Conventional University Teachers in Nigeria

Despite the fact that distance education has been integrated into the mainstream of Nigeria’s educational system (thousands of those denied in the conventional education were adequately offered admission through the distance learning), this mode of educational delivery is still increasingly misconceived especially by university teachers who were trained through the conventional mode. This study was, therefore, carried-out to ascertain the common misconceptions associated with open and distance learning by university teachers in Nigeria. The study adopted the descriptive research design of the ex-post facto type. The population comprised all the university lecturers at Ibrahim Babangida University, Niger State and University of Ibadan, Ibadan, Nigeria. The sample size comprised one hundred and thirteen (113) lecturers selected through the purposive sampling technique while simple random sampling techniques was used to select fifteen (15) departments (seven from faculties of Education, four from Social Sciences and four from Arts). For participants to qualify for selection, they must have been teaching at least for three years in the distance learning programme, and must have had minimal understanding of the philosophy and modus operandi of open and distance learning. Common misconception of open and distance learning questionnaire (CMODLQ) r=84 was used to collect data which were analysed through simples percentages and cross tabulation. Findings showed that (87 per cent) perceived ODL as a debased form of learning with so much emphasis on individualized rather than group learning. (90 per cent) conceptualised it as less vigorous since the content of learning cannot be adequately covered within short period of face-to-face contact while (70 per cent) claimed that evaluation of learning in ODL is less vigorous due to the consideration accorded the competing demands of learners. These results revealed that much is still needed to be done in order to create enabling environment where ODL programmes would be favourably perceived by university lecturers. Based on these findings, the strategies that can be used by open and distance learning institutions to promote the acceptability of this educational delivery mode as a standard and alternative educational component especially university lectures such as improved teacher-students contact for adequate learning process; joint semester examination for both conventional and ODL students; regular and adequate training for conventional university teachers on ODL operations be taken as a matter of priority were suggested. The paper also advocated for adequate quality control measures to be taken by an independent body like National University Commission (NUC) so as to encourage patronage of ODL in Nigeria and competencies of the students in the ODL programme.
The study of the electron transport characteristics of bilayer blue phosphorus with different stacking by first principles

We study the structural, electronic and transport property of bilayer blue phosphorus (BBP) by using the first-principles. Our results show that the band gap can be adjusted by different stacking structures of the BBP. We simulate the functional device based on AA-, AB- and AC-stacking BBP and the transport characteristics of the current-voltage curve with nonlinear competitive behavior are investigated. Of the three devices, AA stacking BBP has the highest conductivity. Under special bias, the currents of AB- and AC-stacking devices produce interesting competitive behavior. The transport characteristics behaviors of the BBP can be explained by the band structure, transport spectrum and molecular projected self-consistent Hamiltonian. We can control the change of current by adjusting the different contact modes of the BBP. The BBP with interesting electronic and transport properties are expected to have potential applications in nanoelectronics.
Capacitor Voltage Reduction in Modular Multilevel Converters Under Grid Voltages Unbalances

Negative- and zero-sequence internal currents of a modular multilevel converter (MMC) under unbalanced ac-grid conditions can increase the peak voltage of the submodule (SM) capacitors, which should be kept below a maximum voltage limit. This paper investigates the impact of offset pulsewidth modulation (OPWM) and zero-sequence voltage injection on reducing peak SM capacitor voltages of the MMC during unbalanced ac-grid conditions. It is demonstrated that OPWM extends the operating range of the MMC for a given set of restrictions, as it leads to a reduction of capacitor voltage in every phase by utilizing all the SMs in the arms. Zero-sequence voltage injection further reduces the maximum SM capacitor voltage among three phases under certain conditions. Simulation results from an 800-MVA MMC-based high-voltage direct current transmission system demonstrate the effect of OPWM in the operation of the converters and the efficacy of the method compared to standard modulation methods.
Simpler free-energy functional of the Debye-Hückel model of fluids and the nonuniqueness of free-energy functionals in the theory of fluids.

In previous publications [Piron and Blenski, Phys. Rev. E 94, 062128 (2016)2470-004510.1103/PhysRevE.94. 062128; Blenski and Piron, High Energy Density Phys. 24, 28 (2017)1574-181810.1016/j.hedp. 2017.05. 005], the authors have proposed Debye-Hückel-approximate free-energy functionals of the pair distribution functions for one-component fluids and two-component plasmas. These functionals yield the corresponding Debye-Hückel integral equations when they are minimized with respect to the pair distribution functions, lead to correct thermodynamic relations, and fulfill the virial theorem. In the present paper, we update our results by providing simpler functionals that have the same properties. We relate these functionals to the approaches of Lado [Phys. Rev. A 8, 2548 (1973)0556-279110.1103/PhysRevA.8. 2548] and of Olivares and McQuarrie [J. Chem. Phys. 65, 3604 (1976)JCPSA60021-960610.1063/1.433545]. We also discuss briefly the nonuniqueness issue that is raised by these results.
DETERMINATION OF DYNAMIC CHARACTERISTICS OF HEAT FIRE DETECTORS

The proposed methods for determining the dynamic characteristics of heat fire detectors in the time and frequency domains, focused on the use of existing thermal chambers. The proposed method for determining the transition function of the detector is implemented as follows. Heat fire detector creates a thermal effect in the form of a linearly increasing function. The response of the output signal to the influence of this type is measured and approximated using the Heaviside function at regular intervals. It is shown that information on the transition function of a heat fire detector can be used to determine its frequency characteristics by approximating it with Heaviside functions at the same time intervals. This method of determining the frequency characteristics will significantly reduce the time to determine them compared to the classical method, and also eliminate the need for additional equipment. As a result of the studies, the choice of the sampling interval was justified on the example of a class A1 heatfire detector and certain sampling intervals for determining their transition function (τ0≤1.05 s), amplitude-frequency characteristic (τ0≤0.27 s) and phase-frequency characteristic (τ0≤2.0 s). The proposed methods for determining the dynamic characteristics of heat fire detectors open up new opportunities for developing methods for monitoring their technical condition. This is because the information about the transition function of the detector can be used in two ways. The first method involves comparing a certain transition function of the detector with an exemplary one. The second method consists in determining other characteristics of the detector based on information about its transient function and comparing them with standard values.
Two different shrinkage estimator classes for the shape parameter of classical Pareto distribution

In this study, biased estimators for the shape parameter of a classical Pareto distribution are proposed using two dierent shrinkage tech- niques which give a smaller mean square error than an unbiased esti- mator. Then these obtained biased estimators are compared with the unbiased estimator by the means of their mean square error.
Graphics of Large Datasets: Visualizing a Million

This book shows how to look at ways of visualizing large datasets, whether large in numbers of cases, or large in numbers of variables, or large in both. All ideas are illustrated with displays from analyses of real datasets and the importance of interpreting displays effectively is emphasized. Graphics should be drawn to convey information and the book includes many insightful examples. New approaches to graphics are needed to visualize the information in large datasets and most of the innovations described in this book are developments of standard graphics. The book is accessible to readers with some experience of drawing statistical graphics.
Hyaluronic Acid Dynamics and its Interaction with Synovial Fluid Components as a Source of the Color Noise

This work presents the process of physical crosslinking of hyaluronic acid (HA) in the presence of phospholipids (PL) as applied to the lubrication in articular cartilage system. Three time scales of the process have been studied using Molecular Dynamics simulation: 2[Formula: see text]ps, 200[Formula: see text]ps and 20[Formula: see text]ns. The simulations were carried out for long and short chains of HA in the presence and in the absence of PL. We show that in contrast to the macroscopic thermal (white) noise, the short-time noise on the molecular scale has the properties of color noise with the power spectrum distribution proportional to the inverse of frequency, [Formula: see text]. The long-time simulations are characterized by a power spectrum similar to that of white noise.
17. gebelik haftasında nadir bir vaka: Hemoliz, yükselmiş karaciğer enzimleri, düşük platelet sayısı sendromu.

HELLP (Haemolysis, Elevated Liver enzymes and Low Platelet) sendromu hemoliz, yukselmis karaciger enzimleri ve dusuk platelet sayisi ile karakterize bir sendromdur. Tum gebelerin %0.5-0.9'unda ve siddetli preeklampsili gebelerin %10-20'sinde gorulur. Hellp sendromu genellikle 27. gebelik haftasindan sonra gorulen bir durumdur. Biz burada 17 haftalik gebede gorulen bir Hellp sendromu vakasini sunduk. Ozellikle termden uzak gebeliklerde Hellp sendromundan kesin emin olunursa ileriki zamanlarda gelisebilecek anne ve bebegin hayatini riske edebilecek komplikasyonlari onlemek icin gebelik hizla sonlandirilmalidir.