Miracle-dz/UniFAR-FTUs huggingface dataset:
Estimation of social significance of copper mining enterprises using the method of least squares

The article discusses the theoretical and practical aspects of PLS-PM modeling the social significance of copper industry enterprises as an indicator reflecting the contribution of companies to the development of the territories of their production facilities and / or parent enterprises. The purpose of the research is to present the results of a study of the influence of factors characterizing the social significance of a business (using the example of Uralelectromed OJSC), by constructing an appropriate PLS-PM model. To achieve this purpose the authors briefly considered OJSC Uralelectromed as an object of study; built a PLS-PM model characterizing the influence of factors on the social significance of copper industry based on the study of the development indicators of Uralelectromed OJSC; graphically presented the PLS-PM model using the SmartPLS software package; interpreted the obtained data. As an informational basis for the PLS-PM modeling, were used the results of a special survey conducted by 25 economists. In order to increase the representativeness of the research, candidates and doctors of economics from the Accounting, Analysis and Audit Department of Ural Federal University, as well as employees of the economic services of NeoStrategy CJSC, Priority Finance Management Company, Medinvestkonsulting LLC and LLC Uralmedytorg took part in the survey. The construction of the PLS model of the social significance of copper industry enterprises allowed the authors to formulate a hypothesis about the possibility of using analytical data to formulate management procedures, by operating factors that have the greatest impact on the indicator of social significance.
Evaluation criteria for measuring the performance of recommender systems

The explosive growth of social network with the help of e-commerce websites has made the issue of information retrieval increasingly challenging. Users may not have the time or knowledge to personally evaluate the options which are available on social network platform. Recommender systems present themselves as a practical answer to endless options available online. In this research paper, we give an insight into various types of filtering techniques associated with recommender systems. We also discuss the problems faced by these filtering techniques and evaluation criteria on the basis of which various algorithms made for recommendation purpose can be compared. Finally we propose a composite news recommendation system model.
Development of a General Evaluation Metric for Rapid Screening of Adsorbent Materials for Postcombustion CO2 Capture

Molecular simulations are combined with macroscopic pressure swing adsorption (PSA) modeling and process optimization to screen ∼2900 metal–organic frameworks (MOFs) for their suitability in separating CO2 from N2 under conditions of interest in postcombustion CO2 capture. The hierarchical screening process eliminates MOFs based on metal price, new heuristics based on the internal energy of adsorption, full PSA modeling and optimization, and other factors. Based on PSA modeling of 190 materials, a general evaluation metric (GEM) is developed that can approximately rank the performance of adsorbent materials as defined by the lowest cost for postcombustion CO2 capture. The metric requires only isotherm data and the N2 internal energy of adsorption. The N2 working capacity is the most important component of the metric, followed by the CO2 working capacity, the CO2/N2 selectivity at desorption conditions, and the N2 internal energy of adsorption. Additional analysis shows that the correlation between the cos.
Le financement des PME en Tunisie : dépendance à l'égard des banques et rationnement du crédit

Malgre leur importance numerique et le role qui leur est devolu dans le cadre de la strategie de promotion du secteur prive en Tunisie, les petites et moyennes entreprises (PME) ne repondent pas aux exigences des banques afin de satisfaire leur besoin de financement. L’estimation du tout premier modele de desequilibre appliquee a la Tunisie repose sur un panel de 1 275 PME observees entre 2001 et 2006. Il montre que la demande de credit bancaire n’est pas determinee par les facteurs « endogenes », tels le niveau d’activite et les ressources internes disponibles des entreprises, mais plutot par des facteurs « exogenes », tels le cout de financement et les garanties exigees par les banques. Les exigences des banques, surtout en matiere de garanties, expliquent en grande partie l’insuffisance des concours octroyes par rapport aux besoins exprimes et se traduisent par une proportion moyenne d’environ 80 % de ces entreprises qui sont - partiellement ou totalement - rationnees.
Production Test of Torrefied Woody Biomass Solid Fuel in an Original Small Scale Plant: (2) Effects of Automatic Temperature Control in Torrefaction and the Use of Additives in Pelletization

A small-scale demonstration plant, which consists of a rotary kiln-type oven and a ring die-type pelletizer, was manufactured to produce upgraded wood fuel by torrefaction. In this study, we improved the temperature control and the pelletization methods. The oven and pelletization operations were optimized by implementing automatic temperature control of the torrefaction oven, and the use of additives in pelletization; which resulted in improvements in pellet productivity. A commercial scale image of the torrefaction plant was designed for operation in a local community. Torrefied fuel could be used for both large-scale power generation and small-scale use, such as for cooking and heating (e.g. in restaurants), in the outdoors, and during emergencies.
A new iron-based metal–organic framework with enhancing catalysis activity for benzene hydroxylation

A new Fe-based metal–organic framework (MOF), termed Fe-TBAPy Fe2(OH)2(TBAPy)·4.4H2O, was solvothermally synthesized. Structural analysis revealed that Fe-TBAPy is built from [Fe(OH)(CO2)2]∞ rod-shaped SBUs (SBUs = secondary building units) and 1,3,6,8-tetrakis(p-benzoate)pyrene (TBAPy4−) linker to form the frz topological structure highlighted by 7 Å channels and 3.4 Å narrow pores sandwiching between the pyrene cores of TBAPy4−. Consequently, Fe-TBAPy was used as a recyclable heterogeneous catalyst for benzene hydroxylation. Remarkably, the catalysis reaction resulted in high phenol yield and selectivity of 64.5% and 92.9%, respectively, which are higher than that of the other Fe-based MOFs and comparable with those of the best-performing heterogeneous catalysts for benzene hydroxylation. This finding demonstrated the potential for the design of MOFs with enhancing catalysis activity for benzene hydroxylation.
Mini-Review: Modeling and Performance Analysis of Nanocarbon Interconnects

As the interconnect delay exceeds the gate delay, the integrated circuit (IC) technology has evolved from a transistor-centric era to an interconnect-centric era. Conventional metallic interconnects face several serious challenges in aspects of performance and reliability. To address these issues, nanocarbon materials, including carbon nanotube (CNT) and graphene, have been proposed as promising candidates for interconnect applications. Considering the rapid development of nanocarbon interconnects, this paper is dedicated to providing a mini-review on our previous work and on related research in this field.
E-Political Empowerment

Abstract Results of data from a 2003 national computer-assisted telephone interview random sample survey (n= 478 completed surveys were returned) are reported. Adult respondents living in Colorado, Iowa, and Pennsylvania were eligible for participation. Of respondents 55 and older, 49% had a home computer, 46% used e-mail, and 43% used the Internet. For seniors 75 and older, 19% had a home computer, 15% used e-mail, and 19% used the Internet. A fully saturated structural equation model with observed variables was estimated. Our survey results leave little doubt that demographics (age, education), attitudes toward the role of technology (IT advantages, computer apathy), and behavior (use of technology in daily life) play a role in determining patterns of electronic citizenship. Most (74%) of the negative total effect of age on e-politics was indirect, as was nearly half (47%) of the effect of education on e-politics. Since attitudes toward technology are formative barriers to digital citizenship, service-learning may be a key ingredient in challenging technological attitudes and increasing electoral participation of marginalized groups.
Comparing Mineral and Chemical Compounds, in Vitro Gas Production and Fermentation Parameters of some Range Species in Torbat-e Jam, Iran

Plants growable in rangelands play an important role in the feeding of ruminants; hence, the nutritive value of four plants (Falcaria vulgaris, Malva neglecta, Chenopodium album, and Polygonum aviculare) was determined by different laboratory methods. The plant samples were randomly collected in vegetative phase from different rangelands of Torbat-e Jam, Iran in spring 2018. The range of dry matter (125 to 184 g/kg), neutral detergent fiber (252 to 358 g/kgDM), acid detergent fiber (155 to 258 g/kgDM), crude protein (172 to 275 g/kgDM), ether extract (9 to 41 g/kgDM), crude fiber (135 to 185 g/kgDM), ash (140 to 252 g/kgDM), acid detergent lignin (41 to 123 g/kgDM), nitrogen-free extract (300 to 496 g/kgDM), and non-fiber carbohydrates (183 to 356 g/kgDM) were different between the studied plants. The mineral composition was also different between treatments and they were containing reasonable minerals as compared to some other plants commonly used as forage feed. The highest in vitro organic matter digestibility (OMD: 876 g/kgDM) and in vitro dry matter digestibility (DMD: 828 g/kgDM) were observed in Polygonum aviculare. The other fermentation parameters (NH3-N, total volatile fatty acids: TVFA, and pH) were also different among the plant species when incubated in the laboratory medium. There was a strong positive correlation between 24 h gas production with OMD, DMD and TVFA and negative correlation between 24 h gas production with crude protein, NH3-N and ether extract. The results showed that each of the four studied plants can be considered as a potential source of feedstuff for the alleviation of problems associated with lack of forage in Iran. According to these reported data, it seems that the nutritional value of Falcaria vulgaris and Polygonum aviculare is higher than the other two plants.
Intraventricular hemorrhage and its fibrinolytic treatment: literature review

The review is dedicated to intraventricular hemorrhage (IVH) and its treatment with topical intraventricular fibrinolysis (IVF). We evaluated many clinical factors typical for IVH: etiology, classifications, symptoms, diagnostics, qualitative and quantitative results and in case of re-bleeding the breakdown site where blood enters venricular system. The paper considers main elements of IVF evaluated, namely indications, external ventricular drain (EVD) techniques, fibrinolytic administration through the drainage catheter vs intratecali, fibrinolytic dosage used (urokinase, tissue plasminogen activator). The paper describes the results following IVH: mortality, main complications (re-bleeding, ventriculitis, shunt-dependence ect) and functional outcome. This article reviews the general points associated with IVH and its treatment with topical IVF.
Wideband extension of telephone speech using a hidden Markov model

In this paper we propose an algorithm to recover wideband speech from lowpass-bandlimited speech. The narrowband input signal is classified into a limited number of speech sounds for which the information about the wideband spectral envelope is taken from a pre-trained codebook. For the codebook search algorithm a statistical approach based on a hidden Markov model is used, which takes different features of the bandlimited speech into account, and minimizes a mean squared error criterion. The new algorithm needs only one single wideband codebook and inherently guarantees the transparency of the system in the base-band. The enhanced speech exhibits a significantly larger bandwidth than the input speech without introducing objectionable artifacts.
A computer program for the characterization of solar cells

A quick and efficient computer program was developed in order to determine important parameters of solar cells, such as the series and shunt resistances, the ideality diode factor, the dark current, and the light current from I versus V measurements. A generalized, single‐exponential model was assumed and, instead of solving nonlinear equations, we used accurate analytical approximations for the calculation of the above parameters. The program was designed to be used easily on any IBM‐PC compatible computer by providing a user‐friendly interface. The required input parameters, such as the open circuit voltage (Voc), short circuit current (Isc), maximum power voltage (Vm), or maximum power current (Im), were determined directly from the I–V pairs by numerical polynomial least‐squares fitting, so that the user does not have to determine these parameters graphically. Therefore, our program is also compatible with a data acquisition system attached to the same computer. The program was tested with simulated d.
Molecular analysis of enginereed nanomaterials in biomedical and regenerative medicine applications

iii ÖZET . v ACKNOWLEDGEMENT . vii CONTENTS . xii LIST OF FIGURES . xvi LIST OF TABLES . xix ABBREVIATIONS . xx CHAPTER 1 . 1 1.1 Design, Synthesis and Characterization of Engineered Nanomaterials . 1 1.2 The Nano-Bio Interface and Intracellular Activity . 6 1.3 Shortand Long-term Risk Assessments of Engineered Nanomaterials . 11 1.4 Selected Applications of Engineered Nanomaterials . 14 1.4. 1 Oral Drug Delivery . 14 1.4. 2 Synthetic Enamel Biomineralization . 16 CHAPTER 2 . 18 2.1 The objective . 18 2.2 Introduction. 19 2.3 Experimental Section . 22
Uncovering the practices, challenges, and incentives for engineering design faculty

Design, a cornerstone of engineering education, necessarily involves a practical training approach, which often requireseducators to navigate non-traditional learning environments. Ambiguity in design is the result of the existence of multiplesolutions to a given problem, and the need to find an optimal solution most often based on incomplete information.Research in design education over the years has showcased the importance of providing feedback, coaching over teaching,and including several hands-on activities with clear learning objectives. It is unclear whether this research knowledge hastranscended into actual design classrooms, and whether there exists barriers or facilitators in teaching design. In aqualitative interview study with 38 design educators and administrators, we examined the practices and attitudes onteaching design, and any barriers or facilitators they faced, across a sample of schools within the United States.Additionally, we examined the use and faculty attitude on peer review, a potentially scalable approach for providingtimely feedback on design. We found that the time faculty spend on teaching is significantly affected by incentives (andrequirements) devised by their institutions. The recent growth in classroom sizes has resulted in reduced formativeassessments. Faculty expressed concerns about low student engagement, poor communication skills, and their capacity toremain creative while taking risks. Furthermore, instructors supported use of peer learning activities, but they foundimplementing these activities challenging with respect to the technical needs and student motivation.
A case of cutaneous toxigenic Corynebacterium ulcerans likely acquired from a domestic dog

Introduction Corynebacterium ulcerans can produce diphtheria toxin and although still rare, is now the predominant cause of toxigenic diphtheria infection in the UK, making this organism of great clinical and public health importance. Here we describe a cutaneous case, likely secondary to domestic animal contact. Case presentation A 60-year-old female presented with a slow-healing finger-burn wound. A skin swab cultured Corynebacterium ulcerans, which was confirmed to be toxin producing. She resided with her partner and two dogs, one of which had a chronic skin lesion. Her most recent diphtheria vaccine was in 2009. Four close contacts were identified, two of whom were healthcare professionals, and nose and throat swabs were obtained. The patient was treated with clarithromycin (14 day course), diphtheria vaccine and excluded from work until completion of antibiotics and negative clearance swabs. Contacts were given erythromycin (7 day course), vaccinated and healthcare worker contacts excluded from work until swab negative. A veterinary practitioner swabbed the throats and a skin lesion of their dogs. One contact (partner of patient) and all dog swabs were positive. Partial allelic profiles from MLST supported an epidemiological link. The dogs were treated with antibiotics and antimicrobial skin wash. Repeat swabs for the index case, contact and both dogs were negative following treatment. Conclusion This was a rare case of cutaneous diphtheria secondary to Corynebacterium ulcerans with domestic animals the most likely source, although human-to-human contact could not be excluded, with important human and animal public health implications.
Polyphenol-Based Particles for Theranostics

Polyphenols, due to their high biocompatibility and wide occurrence in nature, have attracted increasing attention in the engineering of functional materials ranging from films, particles, to bulk hydrogels. Colloidal particles, such as nanogels, hollow capsules, mesoporous particles and core-shell structures, have been fabricated from polyphenols or their derivatives with a series of polymeric or biomolecular compounds through various covalent and non-covalent interactions. These particles can be designed with specific properties or functionalities, including multi-responsiveness, radical scavenging capabilities, and targeting abilities. Moreover, a range of cargos (e.g., imaging agents, anticancer drugs, therapeutic peptides or proteins, and nucleic acid fragments) can be incorporated into these particles. These cargo-loaded carriers have shown their advantages in the diagnosis and treatment of diseases, especially of cancer. In this review, we summarize the assembly of polyphenol-based particles, including polydopamine (PDA) particles, metal-phenolic network (MPN)-based particles, and polymer-phenol particles, and their potential biomedical applications in various diagnostic and therapeutic applications.
A locally weighted machine learning model for generalized prediction of drift capacity in seismic vulnerability assessments

Drift capacity of reinforced concrete (RC) columns is an important indicator to quantify the seismic vulnerability of RC frame buildings; however, it is challenging to accurately predict this value as the nonlinear behavior can vary greatly by column type. This article proposes a novel, local machine learning (ML) model, called locally weighted least squares support vector machines for regression (LWLS‐SVMR), which integrates LS‐SVMR and locally weighted training criteria to enhance and generalize the prediction of the drift capacity of RC columns, regardless of the type. A database of 160 circular RC columns covering flexure‐, shear‐, and flexure–shear‐critical specimens was developed to train and test the proposed LWLS‐SVMR. The proposed LWLS‐SVMR was validated by comparison with popular existing global and local learning approaches as well as a traditional empirical equation, and the results demonstrated that the proposed LWLS‐SVMR is superior to all other approaches and thus, is a promising artificial intelligence technique for enhancing the prediction of drift capacity, universally across RC flexure‐, shear‐, and flexure–shear‐critical columns. The LWLS‐SVMR exhibits capabilities which may yield it a feasible approach to predict complex, nonlinear behavior in a broad‐spectrum manner.
Probing the sensitivity of autoantibody production to B cell depletion by Rituximab

Rituximab, a monoclonal antibody directed against the human CD20 antigen, causes profound depletion of all B cells. When used in patients with autoimmune disease, IgG autoantibody titres often fall whilst serum IgG anti-tetanus toxoid antibody titres are unaffected. Antibodies of both these antibody specificities have features associated with production by long-lived CD20- plasma cells that should be resistant to Rituximab. Reasons for the differential loss of these apparently similar types of antibody were investigated. Initial experiments established multiplexed bead assays to measure, in parallel, serum titres of multiple antibody specificities. Paired acute and convalescent sera, from 11 patients treated with Rituximab for Wegener‟s granulomatosis, were then studied. During 5 months after treatment, and following clinical remission, IgG anti-Proteinase 3 autoantibody titres fell gradually. All other measured antibody titres remained little changed. These findings favour the hypothesis that autoantibody producing plasma cells are sustained by disease related inflammation. Subsequent experimental studies support a wider hypothesis -that inflamed sites can support increased plasma cell numbers. In the prolific humoral response of QM mice to immunisation with NP-Ficoll, concurrent infection with attenuated Salmonella enterica serovar Typhimurium increases splenic capacity to support plasma cells. The enhanced support may reflect locally increased IL-6 production.
Principles and practical aspects of an automatic calibration procedure for urban rainfall-runoff models

Automatic methods for model calibration take advantage of the speed and power of computers, while being objective and relatively easy to implement. This paper presents the principles of automatic calibration applicable for urban rainfall-runoff modelling. The automatic scheme was developed by modifying the computer code of the MOUSE software package to include the shuffled complex evolution optimization algorithm with appropriate objective functions. The kinematic wave model was applied for the surface runoff computation. The output of the rainfall-runoff modelling was used to design a sedimentation basin. The practical aspects of applying automatic calibration results using different objectives are elaborated. It is clearly demonstrated that the proposed automatic scheme can be applied in urban water engineering design.
Horizon Detection Based on Edge and Region Feature for Images Captured by UAV

Aim at the problem of horizon detection in the vision-based automatic determination of UAV's gesture,the identification rule and detection algorithm of the horizon are proposed.The edge and region features of horizon in the image are analyzed basing on which the one-dimension edge detection method and distributing restriction of gray level are introduced to find the points belong to a horizon.An improved RANSAC algorithm is presented to process the candidate points for the extracting of horizon line,which is confirmed using identification rule of horizon.Experiment results have proved the validation of the algorithm.