Miracle-dz/UniFAR-FTUs huggingface dataset:
Nickel Adsorption on MnO2, Fe(OH)3, Montmorillonite, Humic Acid and Calcite: A Comparative Study

Nickel adsorption on 5 different solid phases: amorphous-MnO2, amorphous-Fe(OH)3, CaCO3, humic acid and montmorillonite were studied. Comparative studies at pH: 6.7–8.4, using a conditional stability constant, showed that the order of surface affinity for Ni, followed the sequence: MnO2 > Fe(OH)3 > humic acid ∼ montmorillonite > CaCO3. MnO2 and Fe(OH)3 are therefore proposed as the major sinks for Ni in fresh water systems. Adsorption on montmorillonite and humic acid were described as linear. Adsorption on MnO2 was described by a Langmuir isotherm, whereas adsorption on Fe(OH)3 was described by the Redlich-Peterson model. Increasing the ionic strength decreases Ni adsorption on MnO2 and montmorillonite, whereas adsorption on Fe(OH)3 was unaffected. Adsorption on Fe(OH)3 was strongly effected by pH, in the region of 7.0 – 8.0, adsorption on MnO2 was unaffected, in the same region. The speciation calculation of Ni(II) in the pH region of 7.0 – 8.0, indicates that Ni2+ dominates at pH < 7.7, and NiCO3 0 dom.
Particle Swarm Optimization for Interference-Limited UAV Networks

—This work studies the deployment of unmanned aerial vehicles (UAVs) as emergency access points to provide wireless services to users in a green ﬁeld. Speciﬁcally, three fundamental design issues are explored under practical 3D air-to-ground (ATG) channel models, namely the minimum number of UAVs, their optimal deployment locations and the optimal transmit power allocation. To decouple these design goals, a particle swarm optimization (PSO)-based scheme in conjunction with the balanced Signal to Interference plus Noise Ratio (SINR) transmit power allocation is proposed. Exploiting the closed-form expressions of the SINR-balanced optimal power allocation and the resulting SINR, the proposed PSO-based scheme optimizes the UAV location generation by generation. Furthermore, a K-means clustering-based initialization scheme is developed to improve the performance of the proposed PSO-based scheme. Finally, a power ﬁne-tuning scheme is devised to further reduce the total transmit power. Extensive simulation is performed to conﬁrm the good performance of the proposed scheme.
GrooveSpired - Application for Drums Training with Beat Recognition

The main goal is implementation of mobile application for drums training. The application must be capable to analyze and evaluate drumming skills of a drummer using drum beats recognition of recorded audio. Other features of the application are displaying drum notation of different grooves from various music styles and playing audio examples of those grooves. For time-frequency analysis discrete wavelet transform is used in this paper. Results show a true positive rate above 96% with reasonable tolerance in the onset detection.
Biometric Authentication by Using Fingerprint Recognition System

— The fingerprints in the human being are unique and do not repeat. It has features that vary from person to person. There are two popular techniques for making matches between the two fingerprints to recognize them: Minute-based and correlating-based techniques. Minute-Based technology is widely used but has some difficulty in extracting features if the fingerprint images are of low quality. The purpose of this project is to examine how features of fingerprint can be derived. In addition, the two main techniques for matching (Minute-based and correlating-based) will be studied.
Technical Note: Taxonomic identification of petrosal bone morphology

Identification of petrosal bones to taxon is important due to the exceptionally well preserved quantity of endogenous DNA found in them. Here we present practical descriptive criteria to allow reliable differentiation of the petrosal bones of some of the most common domestic and wild mammalian taxa of the Old World. is should simplify the identification and documentation of the bone during initial sorting for analysis and help separately curate specimens for taxon-specific ancient DNA studies.
LEXICO-SEMANTIC GROUPS OF MOTION VERBS IN MODERN ENGLISH

Introduction. The article sets out to explore the lexico-semantic groups of the verbs of motion in modern English as part of a single lexico-semantic system of the English verb. In spite of the long history of study of the basic properties of the verbs of motion, they still remain poorly understood. The category of verbs of motion is very broad and complex. Thus, a considerable amount of research has been devoted to the classification and characterization of motion verbs. Quite few attempts have been made to investigate the verbs of motion in the semantic field and the lexical system of English. Analysis of recent research and publications. Throughout the history of linguistics, scholars have always been interested in the semantic field of motion. The problem of identifying the lexico-semantic groups has been a subject of special interest. The issue of verbs of motion in modern English has been extensively studied in recent years. The interest in verbs of motion has been due to the necessity to determine the criteria which distinguish the verbs of motion from other verb classes. The problem of verbs of motion in modern English has been explored by many researchers. The studies UDC 811.111’367.625’373 DOI:
Atypical Aortic Coarctation Complicating Takayasu’s Arteritis Presenting as Pyoderma Gangrenosum in A Young Boy: Case Report and Review of Literature

Case Report Introduction: Atypical aortic coarctation is very rare, accounting for up to 2 % of aortic coarctation malformation. Several etiologies have been described and the most common is the Takayasu’s arteritis. Skin manifestations of TA are very rare and an association with pyoderma gangrenosum has been reported. This case highlights the diagnosis and management challenges. Case report: A 10 years old boy with pyoderma gangrenosum was admitted for hypertensive emergency. TEE and CT scan further revealed an atypical aortic coarctation complicating Takayasu arteritis. The inflammatory storm was managed with immunosuppressive therapy. Conclusion: Atypical aortic coarctation is rare. Takayasu’s disease is its main reported etiology and has poor prognosis. Early diagnosis and treatment are therefore crucial to prevent further damage to the blood vessel.
Curvilinear Associations between Weight Status and Diet Variety in Children Referred for Eating Problems

Background: Past research has found positive linear associations between weight status and the variety of grains, proteins, and snack foods accepted by children and adults, but with negative linear associations for vegetables. To date, the literature has only examined linear associations between these variables. With their broad range of body mass index (BMI) z-scores in comparison to same-aged peers, children referred to clinics for the treatment of eating problems provide a unique opportunity to examine both linear and curvilinear associations between children’s BMI z-scores and the number of foods accepted. Methods: Participants included 587 children with various problems with eating, such as poor weight gain, selective eating, and/or overweight with autism spectrum disorder, other special needs, and no special needs. Clinic staff measured children’s height and weight to calculate BMI z-scores and parents completed surveys to report children’s acceptance of 77 common foods from six food groups. Results: ANCOVAs found greater diet variety accepted by children who were older, female, without special needs, and with higher BMI z-scores. Hierarchical multiple regression revealed the expected positive linear associations, but also J-shaped curvilinear associations between BMI z-scores and diet variety for fruits, vegetables, proteins, grains, and dairy foods with upswings in diet variety for both underweight children (BMI z-scores < -2.00) and especially for children with severe obesity (BMI z-scores > +2.00). Conclusion: These results suggest that only encouraging children to eat a variety of foods will not be a successful weight management strategy. The willingness of underweight children to eat a variety of foods may also help promote weight gain through offering a variety of foods at meals and snacks to decrease satiation and increase intake.
Sequential Line Search for Generative Adversarial Networks

Generative Adversarial Networks (GAN) is a popular method to generate realistic images. The method is used for creating new designs and artwork. However, it takes time to generate the desired image because the relationship between the GAN’s input and output is unclear. The user generally has to try several input vectors into the GAN in order to obtain the desired output image. In this paper, we propose a method that can efﬁciently generate the desired image by applying sequential line search to the GAN. Using this technique, the user only needs to manipulate a single slider a few times in order to obtain the desired output image. The utility of our method is experimented through crowdsourced experiments.
BITCOIN AS AN ELECTRONIC PAYMENT TOOL BITCOIN JAKO ELEKTRONICZNY ŚRODEK PŁATNICZY

The article presents the results of research aimed at assessing the Bitcoin (BTC) capability to act as a widely accepted means of payment. The analysis includes technological and economic conditions of the BTC operation system. The research used data on market capitalization, the number of participants and the level of volatility of the BTC exchange rate in 2010-2018 from the portal coinmarketcap.com . The results of the research showed that BTC possesses certain characteristics typical of money, and has the potential to increase its share in the payment system in the future. BTC's ability to act as an electronic equivalent of cash depends on such factors as the stability of its exchange rate and the level of acceptance among users and payment acceptors. The statistical analysis of the correlation showed that along with the increase in the capitalization value of the BTC market the volatility of the exchange rate of this currency is lowered and the level of acceptance among e-commerce participants is increased. Such dependence will allow for further technological development of BTC and other cryptocurrencies and a wider use in trade.
Crystal and liquid crystal behaviour of N-cyanoalkyl-N-alkyl-N,N -dimethylammonium bromides: Role of the dipole interactions of the cyano groups

A homologous series of dialkyldimethylammonium bromides bearing a cyano group at the end of one of the alkyl chains was synthesized. The cyanoalkyl group ranges from monomethylene to hexamethylene and the cyano-free chain from dodecyl to octadecyl. The thermotropic liquid crystal behaviour of the series was investigated using differential scanning calorimetry, polarizing microscopy, and X-ray diffraction. The molar volume of four selected compounds was determined as a function of temperature using dilatometry. The low-temperature crystal phases were found to have a lamellar structure in which the ammonium bromide groups are arranged within the layers in two distinct planes, alternately separated by single layers of upright, interdigitated alkyl chains and double layers of cyanoalkyl chains coupled through the cyano end groups. The high-temperature smectic A phases were found to display a similar structure regarding the layering of the molecules, in which however the alkyl and cyanoalkyl chains have a diso.
Revisiting Rate of Return Regulation under Uncertainty

This paper revisits the literature on rate of return (ror) regulation under uncertainty and makes three contributions. (1) It shows that earlier ror regulation results were all incorrectly obtained, because the expected profit function is generally not differentiable. (2) It reveals the difference between two types of ror regulation: regulating the expected ror (type I), and regulating the ror in every state (type II). There are always Averch-Johnson (A-J) effects under type I regulation, but not necessarily under type II regulation. (3) It re-derives the A-J effect under certainty by a new and nontechnical approach, without using the Lagrangian multiplier. JEL Classification Number: D42, L51
EFFECT OF FEED RESTRICTION ON GROWTH PERFORMANCE, SUDDEN DEATH SYNDROME AND SOME BLOOD PARAMETERS IN BROILER CHICKENS

Received at: 28/9/2015 Accepted: 30/10/2015 The study aimed to determine the effects of feed restriction on growth, feed efficiency, sudden death syndrome (SDS) and some blood parameters in broilers. One hundred mixed sex chicks (Avian 48) were randomly allocated into two treatment groups each of 50 chicks (5 replicates). Broilers in the first treatment fed ad libitum until the end of the experiment (35 days of age), while feeds in the other treatment were restricted by 20% from 7 to 21 days. Broilers fed adlibitum had significantly high body weight gain, better feed conversion and high mortality rate compared with the restricted broilers. Although the mortality rate was significantly higher in ad libitum fed broilers, their better feed efficiency significantly rise the income over feed cost (IOFC). Feed restriction lowered serum lipids and triglycerides associated with macrocytic anemia. Inconclusion, feed restriction negatively affected growth performance, blood parameters and IOFC. Therefore, results support ad libitum feeding for broiler chickens.
Transient and Average Markov Reward Chains with Applications to Finance

Abstract. The article is devoted to Markov reward chains, in particular, attention is primarily focused on the reward variance arising by summation of generated rewards. Explicit formulae for calculating the variances for transient and average models are reported along with sketches of algorithmic procedures for finding policies guaranteeing minimal variance in the class of policies with a given transient or average reward. Application of the obtained results to financial models is indicated.
Formation of a Compact Structured Ensemble without Fluorescence Signature Early during Ubiquitin Folding

The fluorescent Ub* mutant of the small globular protein ubiquitin is studied by multiple spectroscopic techniques under low temperature/high viscosity conditions to reveal unambiguously the formation of a compact structured intermediate preceding the barrier crossing to the native state. When detected by fluorescence intensity alone, ubiquitin appears to fold via a quasi two-state mechanism. In contrast, circular dichroism reveals the early formation of a structured ensemble, whose signal between 210 and 230 nm exceeds that of the native state, and whose unfolding curve is cooperative. The ensemble radius of gyration determined by small-angle X-ray scattering is only 1.2 times that of the native state, close to the classical molten globule value. Experiments performed in water/ethylene glycol mixtures at temperatures as low as −20 °C allow us to set an upper limit of ≤8kBT on the barrier height for formation of the intermediate ensemble. The very small fluorescence burst phase indicates that the tryptoph.
Effect of 12 weeks of yoga training on respiratory pressures and 40 mm Hg test in healthy individuals

Ventilation plays an important in the adequacy of external gas exchange. Ventilatory pump response in comparison to the given metabolic load depends upon the strength of the force generator units which are the respiratory muscles. Respiratory muscles strength can be directly measured using static pressures i.e. Maximum expiratory pressure (MEP), Maximum inspiratory pressure (MIP) and 40 mmHg test [1]. Respiratory pressures are easily measured, objective and sensitive indices of respiratory muscle strength and can be altered in disease states even when other commonly measured pulmonary function tests show little abnormality [2].
Development and Validation of a Discriminative Dissolution Medium for a Poorly Soluble Nutraceutical Tetrahydrocurcumin

Objectives The present study aimed to develop and validate a discriminative dissolution method for tetrahydrocurcumin (THC), a Biopharmaceutical Classification System class II drug, by a simple ultraviolet (UV) spectrophotometric analysis. The final dissolution medium composition was selected based on the solubility and stability criteria of the drug. Materials and Methods As a prerequisite for this, the solubility of the drug was assessed in media of different pH (1.2-7.4), and surfactant concentrations of 0.5-1.5% (w/v) sodium lauryl sulfate (SLS) in water, and pH 7.4 phosphate buffer. The dissolved drug concentration in each medium was quantified by UV analysis at 280 nm wavelength. Results The drug solubility was found to be high at a pH of 1.2 and 7.4. The media with surfactant enhanced solubility of the drug by approximately 17-fold and exhibited better sink conditions. The discriminative power of the developed dissolution medium (i.e., 1% w/v SLS in pH 7.4) was determined by performing in vitro dissolution studies of the prepared THC tablets and comparing their release profiles using fit factors (f1 and f2). The results of the fit factor comparisons made between the dissolution profiles of THC tablets proved the discriminative ability of the medium. The validation of the developed dissolution method was performed by international guidelines and the method showed specificity, linearity, accuracy, and precision within the acceptable range. Conclusion The proposed dissolution method was found to be adequate for the routine quality control analysis of THC, as there is no specified dissolution method for the drug in the pharmacopoeia.
Changes in White Matter of the Cervical Spinal Cord after a Single Season of Collegiate Football

The involvement of the central nervous system (CNS), specifically the white matter tracts in the cervical spinal cord, was examined with diffusion tensor imaging (DTI) following exposure to repetitive head acceleration events (HAEs) after a single season of collegiate football. Fifteen National Collegiate Athletic Association (NCAA) Division 1 football players underwent DTI of the cervical spinal cord (vertebral level C1–4) at pre-season (before any contact practices began) and post-season (within 1 week of the last regular season game) intervals. Helmet accelerometer data were also collected in parallel throughout the season. From pre-season to post-season, a significant decrease (p < 0.05) of axial diffusivity was seen within the right spino-olivary tract. In addition, a significant decrease (p < 0.05) in global white matter fractional anisotropy (FA) along with increases (p < 0.05) in global white matter mean diffusivity (MD) and radial diffusivity (RD) were found. These changes in FA from pre-season to post-season were significantly moderated by previous concussion history (p < 0.05) and number of HAEs over 80 g (p < 0.05). Despite the absence of sports-related concussion (SRC), we present measurable changes in the white matter integrity of the cervical spinal cord suggesting injury from repetitive HAEs, or SRC, may include the entirety of the CNS, not just the brain.
Multi-Hop Clustering Approach for Energy Utilization in Wireless Sensor Network

: Wireless sensor networks (WSNs) play an important role in our every phase of life. In WSN a smart sensors nodes deployed for a wide range of applications for monitoring and sensing the event. The amount of energy in every sensor node is fixed and limited. The battery (energy) is un-replaceable and not charged again therefore; energy efficiency is important design parameters for design any wireless sensor network. This paper is mainly focus on the clustering and proposed approach of routing for energy utilization of WSN. The proposed algorithm is mainly focus on maximization of energy in terms of round calculation. Clustering and design considerations are very important for minimize the energy consumption and prolong the life time of the WSN.
Understanding of physics on electrical conductivity in metals; Drude – Sommerfeld-Kubo

1. Overview Around 1900, Drude (Paul Karl Ludwig Drude) improved the theory of classical conduction given by Lorentz. He reasoned that since metals conduct electricity so well, they must contain free electrons that move through a lattice of positive ions (the discovery of electron by J.J. Thomson in 1897). This motion of electrons led to the formation of Ohm’s law. The free-moving electrons act just as atomic gas; moving in every direction throughout the lattice. These electrons collide with the lattice ions as they move about, which is key in understanding thermal equilibrium. The average velocity due to the thermal energy is zero since the electrons are going in every direction. There is a way of affecting this free motion of electrons, which is by use of an electric field. This process is known as electrical conduction and theory is called Drude-Lorentz theory; Conventionally we call the Drude model here. In Modern Physics (Phy.323 in Binghamton University)) and Solid State Physics (Phys.472/572 in BU) of the undergraduate physics courses in U.S.A. , it is taught that the electrical resistivity of metal can be explained in terms of the quantum mechanical model (Sommerfeld model) that the electrons are fermions and obeys the Fermi-Dirac statistics. In this model, only the conduction electrons near the Fermi surface contribute to the electrical resistivity. These electrons have the Fermi velocity F v (10 6 m/s) for copper (Cu) metal. The mean free path is evaluated as
ASIC Implementation of Redundant Arithmetic CORDIC Processor

– In processing the real world data Digital Signal Processing algorithms provide unbeatable performance. One of the DSP algorithms is Coordinate Rotation DIgital Computer (CORDIC). Actual time waving estimation, CORDIC act as a special purpose digital computer. The CORDIC is categorized in two different styles such as folded (sequential) and unfolded (combinational). This paper presents a novel architecture of CORDIC using redundant arithmetic i.e., RA-CORDIC. The RA-CORDIC structure shows better latency and obtains maximum throughput. The structure has been coded in VERILOG, synthesis analysis is performed using RTL compiler and Physical design is done using EDI tool.
Evaluation of dc insulation performance based on space-charge measurements and accelerated life tests

Space charge observation is becoming the most widely used technique to evaluate polymeric materials for dc insulation applications, particularly HV cables. However, quantities are still lacking that can help to summarize and interpret the huge amount of data resulting from space charge measurements, and that also are associated with the electrical performance of the insulation. The purpose of this paper is to propose test methods and parameters, based on the pulsed electroacoustic technique, which can be used for the evaluation of the electrical performance of polymeric insulation under dc fields. These parameters are related to the space charge magnitude and mobility as well as to the internal electric field amplification, the rate of charge accumulation, and the threshold field above which charge is stored in the insulation. In order to investigate the meaning of the parameters proposed for the assessment of insulation performance, the correlation between these parameters associated with space charge and insulation life is discussed. Examples are reported with reference to five different candidate materials for dc cable insulation.