Miracle-dz/UniFAR-FTUs huggingface dataset:
THE ROLE OF COAL COMBUSTION PRODUCTS IN MANAGING THE BIOAVAILABILITY OF NUTRIENTS AND HEAVY METALS IN SOILS

Coal provides the primary source of energy for many countries including Asia, South America, North America and Europe, and large quantities of waste products are produced during the combustion of coal in coal-fired power stations. This review paper gives an overview of the various types of coal combustion products (CCPs) and their utilization in various sectors, with a particular emphasis on the role of CCPs in managing the bioavailability of nutrients and heavy metals in relation to enhancing soil chemical fertility and mitigating metal contaminated soils. Currently, CCPs are used extensively in agricultural and construction industries. In agricultural industries, they are used primarily as an amendment to improve the physical and chemical properties of soil, as a source of liming material to ameliorate soil acidity and as a nutrient source to supply calcium and sulphur. In the construction industry, they are used mainly as a source of concrete, roofing material and road surface sealing. Increasingly, CCPs are used in the remediation of contaminated environments including control of acid mine drainage, mitigating phosphorus leaching in farm lands and immobilization of toxic metals in mine sites and agricultural soils.
ART-naive HIV patients at Feleg-Hiwot Referral Hospital Northwest Ethiopia.

Objectives: To determine socio-demographic and immunological status of anti-retroviral treatment (ART)-naive HIVpositive patients. Methods: This was a longitudinal survey of HIV-positive patients treated with ART at Felege-Hiwot Hospital. CD4 cell counts were enumerated at baseline and after 6 months of treatment using FACS count (Becton Dickinson). Socioeconomic data were collected using pre tested questionnaires. Results: Three hundred sixty eight (62% female), with median age 30 years were enrolled. Of these, 207 (56.5%) were uneducated and 233 (66.8%) had monthly income ≤ 250 birr. Three hundred fifteen (85.6%) started ART within 6 months of HIV diagnosis. The mean (95% CI) CD4 cell count at baseline was 153 (139-167); 156 (137-175) for females and 122 cells/μl (105-139) for males (p 200 cells/μl (p=0.21). Conclusion: In this setting, HIV patients started ART with lower mean CD4 cell counts of 153 cells/μl and most patients with low baseline CD4 cells (
Electrical pulse measurement, inelastic relaxation, and non-equilibrium transport in a quantum dot

We review electrical pulse experiments carried out to probe inelastic energy relaxation processes and related non-equilibrium transport characteristics of quantum dots (QDs) in the Coulomb blockade (CB) regime. In contrast to the relatively short momentum relaxation time (~10 ns) that can be understood on the basis of acoustic phonon emission, the spin-flip relaxation time is found to be extremely long (~200 µs). The spin relaxation process in our QDs is actually dominated by a cotunnelling process, and thus the intrinsic spin relaxation should have a longer relaxation time. The long relaxation time is discussed in terms of potential applications to spin-based quantum information storage. On the other hand, the extremely long spin relaxation process can induce considerable fluctuation of the spin, charge, and total energy of the QD. The absence of efficient spin relaxation processes can cause highly non-equilibrium transport, which actually 'breaks down' the single-electron tunnelling scheme. The non-equilibrium effects must be considered when electrons and spins are manipulated in the CB regime.
Graph based algorithms to efficiently map VLSI circuits with simple cells

This thesis introduces a set of graph-based algorithms for efficiently mapping VLSI circuits using simple cells. The proposed algorithms are concerned to, first, effectively minimize the number of logic elements implementing the synthesized circuit. Then, we focus a significant effort on minimizing the number of inverters in between these logic elements. Finally, this logic representation is mapped into a circuit comprised of only two-input NANDs and NORS, along with the inverters. Two-input XORs and XNORs can also be optionally considered. As we also consider sequential circuits in this work, flip-flops are taken into account as well. Additionally, with high-effort optimization on the number of logic elements, the generated circuits may contain some cells with unfeasible fanout for current technology nodes. In order to fix these occurrences, we propose an area-oriented, level-aware algorithm for fanout limitation. The proposed algorithms were applied over a set of benchmark circuits and the obtained results have shown the usefulness of the method. We show that efficient implementations in terms of inverter count, transistor count, area, power and delay can be generated from circuits with a reduced number of both simple cells and inverters, combined with XOR/XNOR-based optimizations. The proposed buffering algorithm can handle all unfeasible fanout occurrences, while (i) optimizing the number of added inverters; and (ii) assigning cells to the inverter tree based on their level criticality. When comparing with academic and commercial approaches, we are able to simultaneously reduce the average number of inverters, transistors, area, power dissipation and delay up to 48%, 5%, 5%, 5%, and 53%, respectively. As the adoption of a limited set of simple standard cells have been showing benefits for a variety of modern VLSI circuits constraints, such as layout regularity, routability constraints, and/or ultra low power constraints, the proposed methods can be of special interest for these applications. Additionally, some More-than-Moore applications, such as printed electronics designs, can also take benefit from the proposed approach.
A BREAF OVERVIEW OF MOTOR FUELS FROM SHALE OIL OF

Non-petroleum fossil fuels and biomass are potential alternative transport fuel sources. Technologies and industrial-scale production of transportation fuels from carbon feedstocks (other than conventional oil) have existed since before World War II. While long-term full-scale applications had in most cases proved to be non-competitive with traditional oil industry due to world economy impacts, research into the development of alternate fuel production technologies has been continuing as depletion of crude oil reserves was expected. There have been two major technological directions for processing coal and biomass thermo-chemically into high-value oil products including transportation fuels: (1) liquefaction into refineable syncrude followed by upgrading of distillates; (2) converting coal or biomass based purified syngas via Fischer-Tropsch or similar processes to hydrocarbon liquids. Although technological schemes exist, currently only a few conversion processes are applied in large-scale practice on a pilot-plant or commercial level due to economical, technological and environmental factors. Broadly speaking, thermo-chemical conversion technologies to produce alternative transport fuels are at the present time more expensive than conventional oil manufacturing, while biomass to liquid technologies are more costly to implement than are coal to liquid technologies. Due to large world oil shale reserves, estimated to be equivalent to more than 2.9 trillion barrels of recoverable oil [1], there is a general expectation that oil shale should become a considerably significant source for high-value oil products. However, some experts are more critical than others regarding the widespread use of oil shale resources, emphasizing rather the potentials of other alternative resources such as coal, tar sand, heavy oil or biomass. Upgrading oil shale into transport fuels requires expenses for adjusting hydrogen carbon ratios by adding hydrogen or removing carbon, and
Feasibility Study on ECC Fatigue Life Extension through Self-healing

The failure of concrete infrastructures subject to repeated loading, such as bridge deck, road surface, and railway sleepers, is a result of fatigue-induced material degradation. For these infrastructures, the progressive crack propagation of concrete under fatigue loading defines the service life. The self-healing of cracks has been engaged in engineered cementitious composites (ECC), a unique group of fiber-reinforced cement-based composites that emerges to replace conventional concrete. Current study investigated the feasibility of decelerating the fatigue-induced crack propagation and extending the fatigue life of ECC by taking the advantage of self-healing. ECC prism specimens made of locally available ingredients were pre-cracked by flexural fatigue loading of different load cycles; the specimens were conditioned under wet-dry cycles for selfhealing; the self-healing efficiency was evaluated by the crack width reduction and fatigue life extension, compared to the control group without self-healing. The results indicate that self-healing can extend ECC fatigue life. The degree of crack width reduction and fatigue life extension decreased with the increasing material damage level, or the number of fatigue load cycles experienced before healing.
Noncommutative 3-sphere as an example of noncommutative contact algebras

Introduction. The notion of deformation quantization was introduced by F.Bayen, M.Flato et al. in [1]. The basic idea is to formally deform the pointwise commutative multiplication in the space of smooth functions C∞(M) on a symplectic manifold M to a noncommutative associative multiplication, whose first order commutator is proportional to the Poisson bracket. It is of interest to compute this quantization for naturally occuring cases. In this paper, we discuss deformations of contact algebras and give a definition of deformations of algebras slightly different from the deformation quantization of Poisson algebras. Since the standard 3-sphere is a basic example of a contact manifold, we study the properties of the noncommutative 3-sphere obtained by this reduction. We remark that the parameter of the deformation of a contact algebra is not in the center, while the deformation quantization of Poisson algebras is given by algebras of formal power series of functions on a manifold; in particular, the deformation parameter is a central element. Details and related results will appear in [6] and [7].
Current implementation of third party certification in Malaysian eCommerce websites

Trust is an increasingly important concept on the Internet, especially for the eCommerce environment. Creating initial trust from buyer to seller is one of the problem that eCommerce need to address immediately since without this initial trust, buyers will be reluctant to commit any transaction through digital medium offered by eCommerce.This can be achieved by having Third Party Certification (TPC) displayed on their digital storefront as being point out by researches done in US and Europe.This paper presents the investigation result of the current implementation of TPC in Malaysian eCommerce websites.Information on how many sample Malaysian eCommerce website have TPC in the digital storefront, what are the TPC being used and what are the service provided by the TPC endorser, in order to understand the current trend of TPC in Malaysia. The output of this study can give an important background on the current implementation of TPC and be used as a basis of initial evaluation for business opportunity as a service provider for this kind of certification in Malaysia.
Miner Face Recognition Based on Improved Singular Value Decomposition

This paper depended on that video monitoring and video images in the coal mine were susceptible to dust, light and miner's safety helmet and other special environmental impact. In order to realize the real-time and accurate face recognition rate, and lay good foundation for miners’ behavior characteristics in the subsequent research in intelligent video monitoring coal mine. The inherent degeneration 、stability and Rotational invariance of singular value can reflect the matrix characteristics fully. In face recognition singular value in image matrix as miner characteristics is a very good method. But only it doesn't work using singular value of image as miners face recognition feature, aiming at face recognition, this paper combined partial singular value decomposition and the overall singular value decomposition to suit for miner image face recognition algorithm. This page Improved the previous singular value decomposition algorithm, First The singular value is decomposed in the standard characteristic matrix and projected to get a new algebraic features, Second combined the partial singular value and the overall singular value decomposition to pick up characteristics algorithm, so as to extract and reflect the mine workers face image accurate algebra feature effectively, And by using BP neural network classifier to distinguish recognition, simulation experiments prove that this method of the recognition rate is higher than other methods. The results show that the method combining the part singular value decomposition with the whole singular value decomposition can be faster, more accurate to realize face recognition, and have satisfactory recognition rate. Keywords-Face recognition; Miner face; singular value; video image
Evaluation of driver models for left turn across path manoeuvres

Accidents at intersections are one of the most common causes of fatalities on roads. Statistics from the EU and the USA show that fatalities at intersections represent more than one fifth of all traffic fatalities. In particular, the left turn across the path of a vehicle coming from the opposite direction (LTAP/OD) is one of the riskiest situations at intersections. The goal of the thesis is to develop driver models describing human behaviour during left-turn-across path scenarios, for future use in active safety systems development for intersections. Video and vehicle dynamics data during daily driving were retrieved from the EuroFOT project database in order to find LTAP/OD scenarios suitable for the scope of the thesis. For the description of driver’s behaviour during the LTAP/OD scenario, two different driver modelling approaches have been considered: the Salvucci and Gray’s, which focuses on steering behaviour, and Nobukawa’s, which is based on vehicle acceleration. The work has been performed using MATLAB®, exploiting also genetic algorithms for model parameter optimization. The models describe the steering and speed behaviour reasonably well for the specific LTAP/OD events used in the model optimization and validation. However, generalization cannot be made across LTAP/OD as a scenario. Further efforts are required, e.g., to increase of number of intersections and number of drivers in the validation, to verify the reliability of the two models and develop it further. Once reliability has been established, the models may be used as part of the design of Intersection Driver Support Systems.
Penetration Testing for Android Smartphones

One major challenge faced by Android users today is the security of the operating system especially during setup. The use of smartphones for communication, social networking, mobile banking and payment systems have all tripled and many have depended on it for their daily transactions.AndroidOS on smartphones is so popular today that it has beaten the most popular mobile operating systems, like RIM, iOS, Windows Mobile and even Symbian, which ruled the mobile market for more than a decade.This paper performspenetration testing of Android-based Smartphones using an application program designed to simplify port-scanning techniques for information gathering and vulnerability attack. In this paper, an attempt was made to test and analyze the security architecture of the Android operating system using the latest penetration testing and vulnerability tool based on Kali Linux. Three different Versions of Android, Version 2.3, 3.2 and 4.2 were simulated on a virtual machine. The result shows that although there is an improvement in the security stack of the different AndroidVersions but Version 4.2 is more secured than the others. This work is important for users and researchers who use their Android smartphones in a critical environment with hostile network traffic.
A Study of Job Satisfaction, Perceived Value and Re-participation Intention of Volunteers in Tennis Sports Event

The purpose of this study is to analyze the job satisfaction, perceived value and re-participation willingness of college students' in tennis sports games. The survey was based on the college students who had participated in the service of National Games and tour tennis match. The survey was carried out by post, and 320 valid questionnaires were collected. After statistical analysis of the questionnaire data, this study finds that: 1. in terms of job satisfaction the harmonious along with volunteer partners is the highest in college students 2. "job satisfaction" and "perceived value" have a predictive effect on "re-participation willingness" in college students. Based on the above findings, this study will not only provide specific suggestions for future volunteer service in mega-sport event, but also provide directions for future research.
Evaluation of Grain Yield-Based Drought Tolerance Indices for Screening Durum Wheat Genotypes = تقييم محصول الحبوب بالنسبة لمؤشرات تحمل الجفاف لفحص الأصناف الوراثية في القمح القاسي

Among the different environmental stresses, drought is the main constraint that has negative effect on crop production. The objective of this study was to evaluate seven drought tolerance indices, namely the stress susceptibility index (SSI), tolerance index (TOL), yield stability index (YSI), yield index (YI), mean productivity (MP), geometric mean productivity (GMP), and stress tolerance index (STI), to be used in screening drought tolerant durum wheat (Triticum durum) genotypes. For this purpose, 50 genotypes were studied in a randomized complete block design with three replications under irrigated and rainfed conditions during 2013–2014 growing season. The drought tolerance indices were calculated based on grain yield under irrigated (Yp) and rainfed (Ys) conditions. Results of combined analysis of variance showed the significant influences of drought stress on all studied traits except number of total and productive tillers per plant, as well as significant differences among genotypes for all studied traits. Results of correlation analysis showed that GMP, MP and STI indices were able to discriminate between drought-sensitive and drought-tolerant durum wheat genotypes. Based on Principal Component Analysis (PCA) and biplot analysis, genotypes G1, G10, G29 and G41 were identified as drought tolerant while, G13, G21, G23 and G25 were identified as drought sensitive genotypes. Cluster analysis using grain yield under irrigated (Yp) and rainfed (Ys) conditions and drought-tolerance indices divided the 50 genotypes into five groups, therefore this result was consistence with results of biplot analysis.
THERMOSENSITIVE POLY(N-ISOPROPYLACRYLAMIDE)-B-POLYCAPROLACTONE-B-POLY(N-ISOPROPYLACRYLAMIDE) TRIBLOCK COPOLYMERS PREPARED VIA ATOM TRANSFER RADICAL POLYMERIZATION FOR CONTROL OF CELL ADHESION AND DETACHMENT

Stimuli-responsive polymer materials have potential uses in drug delivery, tissue engineering, bioreactors, and cell-surface adhesion control. Temperatureresponsive surfaces of triblock copolymers of poly(N-isopropylacrylamide)-b-polycaprolactone-b-poly(N-isopropylacrylamide) (P(NIPAAm)-b-PCL-bP(NIPAAm)) were fabricated via atom transfer radical polymerization (ATRP). At 37 °C [above the lower critical solution temperature (LCST) of NIPAAm of 32 °C], the seeded cells adhered on the surface of the triblock copolymer, while below the LCST the cells detached from the surface spontaneously. P(NIPAAm) acted as the thermoresponsive segments of the triblock copolymer for control of cell adhesion and detachment. The thermosensitive copolymers are potentially useful as stimuli-responsive adhesion modifiers for cells in biomedical fields.
Deep learning approaches for small dimensional biomedical data

In this paper we apply convolutional neuronal networks in different configurations to solve prediction tasks on medical data: Given 27 blood parameters obtained by labor blood examination the classes of tumor markers C153 and PSA should be predicted. Based on former work the results of trained Multi-Layer-Perceptrons (MLP) were moderate. Our major interest was now focused on the question if the prediction quality of CNN models outperforms MLPs. We had to transform the vector of input data into a two-dimensional pseudo image and augment it with different correlation values for increasing spatial structure. Various experiments with CNNs show that the prediction quality slightly increases compared to MLPs.
Dietary Supplementation with Acanthopanax senticosus Extract Modulates Cellular and Humoral Immunity in Weaned Piglets

This study was conducted to test the hypothesis that dietary supplementation with an herbal extract of Acanthopanax senticosus (AS) enhances the immune response in weaned piglets. Sixty piglets weaned at 21 days of age were randomly assigned to 3 treatment groups representing the addition of 0 or 1 g/kg of the AS extract or 0.2 g/kg of colistin (an antibiotic) to maize- and soybean meal-based diets (n = 20 per group). On days 7, 14 and 28 after initiation of the addition, total and differential counts of leucocytes, proliferating activity of peripheral lymphocytes, serum levels of immunoglobulins (Ig) and cytokines and the spleen index were determined. The AS extract decreased (p<0.05) the number of neutrophils on days 7 and 28 in comparison with the control group and reduced (p<0.05) serum interleukin-1β level on day 28 compared with the other 2 groups. Dietary supplementation with the AS extract increased (p<0.05) the lymphocyte/leukocyte ratio on day 28 compared with the control group and increased the proliferating activity of lymphocytes on days 14 and 28 compared with the other 2 groups. The AS extract increased (p<0.05) the serum content of IgG on day 7 and of IgG and IgM on day 28 compared with the other 2 groups, as well as increasing the serum content of tumor necrosis factor on day 7 and spleen index on days 7 and 28 compared with the control group. Collectively, these findings suggest that the AS extract as a dietary additive enhances the cellular and humoral immune responses of weaned piglets by modulating the production of immunocytes, cytokines and antibodies.
Structural and electrical conductivity studies of doped ZnS

The effect of cobalt impurities on transport and structural properties of doped ZnS has been studied through electrical resistivity, X-ray diffraction and scanning electron microscopy. Correlating the results obtained, it has been shown that the Co concentrations considerably influence the transport properties as well as the structural features, in particular the β → α phase transformation of ZnS.