bluuebunny/crossref_metadata_2025 huggingface dataset:
METHODS OF THE ESTIMATED TWO-PARAMETER LINEAR REGRESSION MODELSFOR DIAGNOSIS OF BRONCHIAL ASTHMA SEVERITY IN CHILDREN
Authors: OLEH MYKHAILOVYCH PIHNASTYI , OLGA SERGEYEVNA KOZHYNA
Published: March 2021

Objectives: Prognostication of bronchial asthma severity in children by means of two-parameter regression models building.

Methods: A clinical study of 70 children with bronchial asthma diagnosis of 6 to 18 years old was done.142 factors were analyzed and a degree of relationship among them was revealed. Single-factor regression models were used during preliminary experimental data processing.

Results: The correlation connection between the value observed and the factors under research was revealed. The method of two-parameter linear models with a fair accuracy was developed.

Conclusion: The suggested method of approximate two-parameter linear regression models can be used for preliminary analysis of medical research data where the value observed depends on a big number of loosely connected factors.
THE ASSOCIATION BETWEEN TRAUMATIC BRAIN INJURY AND GLIOMAGENESIS AND ITS SPECIAL ROLE IN GLIOBLASTOMA MULTIFORME PATHOGENESIS: A REVIEW
Authors: CHRYSANTHAKOPOULOS NIKOLAOS ANDREAS , CHRYSANTHAKOPOULOS PANAGIOTIS ANDREAS
Published: March 2021

Gliomas are the most common primary and aggressive intracranial tumors, represent 80% of malignant brain tumors, and despite the fact that are relatively rare tumors are responsible for significant mortality and morbidity. Glioblastoma multiforme (GBM) or diffuse astrocytoma, WHO grade IV, is the most common and aggressive primary central nervous system malignancy, represents 45% of all gliomas, shows an average incidence of 3.19/100,000 individuals, its median age of diagnosis is 64 years, and the median survival is 15 months as the 5-year relative survival is 5%. Previous studies have investigated the possible role of genetic and environmental factors in GBM pathogenesis; however, the majority of GBM cases were sporadic and certain risk factors have not been detected. GBM is divided into primary and secondary subtypes which develop through different genetic pathways, affect patients at different ages, and have differences in clinical outcomes, as show a great morphological and genetic heterogeneity. The role of traumatic brain injury (TBI) in GBM formation has been investigated in many previous reports which have hypothesized that TBI may predispose to gliomagenesis; however, the outcomes were highly controversial. Some of those researches have proposed a supposed pathogenesis model that involves a post-traumatic inflammation, stem and progenitor cell transformation, and gliomagenesis. Other similar studies have involved transcription factors associated with TBI such as p53, hypoxia-inducible factor-1a (HIF-1a), and c-Myc. On the other hand, the possibility of a pre-existing tumor rather than a trauma-induced tumor is very possible in such cases.
ANALYSIS OF BIOACTIVE COMPONENTS FROM CHLOROFORM EXTRACT OF LYCOPERDON SP. (APIOPERDON)
Authors: BHARATHNAIR  , ABRAHAM DELMY , SARANYA K. , MALLIKARJUNASWAMY G. E.
Published: March 2021

Objective: The present work was done to find out various bioactive compounds present in the chloroform extract of Lycoperdon pyriforme using gas chromatography-mass spectrometry (GC-MS).

Methods: L. pyriforme was collected cleaned to remove any dirt and oven dried at 60°C. The sample was then finely powdered and extracted with chloroform using Soxhlet apparatus. The chemical composition of chloroform extract was then analyzed using QP2010S-Shimadzu GC-MS instrument.

Results: Chloroform extract resulted in the presence of 33 compounds with 1-Heneicosanol (11.17%) and E-15-Heptadecenal (11.08%) forming major compounds and 1-Tetradecanol (0.16%), Dichloroacetic acid, and decyl ester (0.15%) forming least.

Conclusion: The results indicated the presence of a variety of compounds thus providing the information about various bioactive compounds present in Lycoperdon sp. and its further application in the field of pharmacology.
BI-GELS: A NOVEL MATERIAL FOR TRANSDERMAL DRUG DELIVERY
Authors: RAJESWARI SARIPILLI , PULLABHATLA RAJESWARI , SATYAVATHI CHUKKA YERNI
Published: March 2021

Bi-gels semi solid formulation is combination of organogel and hydrogel with better application property such as pharmaceutical and cosmetics. The main objective of this review is specially focuses on application of bi-gels as drug delivery vehicles by transdermal route. It contains two different phases which are polar and nonpolar due to which, it possess some significant features such as ability to deliver the hydrophilic and hydrophobic drugs which also have improved permeability of drugs, better spreading ability, and water wash ability. Hence, bigels have both organogels and hydrogels they can enhanced hydration of stratum corneum and also had an ability to manipulate the drug release rate from the dosage from.
ECOLOGY OF CRIME IN URBAN AND SUBURBAN AREA – SPATIAL PATTERNS OF CRIME IN NIS (SERBIA)
Authors: Stanković Dušan
Published: March 2021

Ecological perspective in criminology has been introduced with the cartographic school at the beginning of criminology science. Ecology theory of crime has been developed in the city of Chicago and it is followed by the routine activity theory, crime pattern theory, and rational choice theory. The impact of the ecological theory in research of crime is noticeable in today's studies too. Modern scientists, researchers, and practitioners are studying crime using the geographic information system, mapping crime, using statistical and geostatistical methods. With the aim to study spatial patterns of crime, empirical research of the poverty and violent criminal acts committed in the City of Nis, Republic of Serbia, during the years 2008, 2013 and 2018. All the cases are geocoded into spatial units that represent urban and suburban areas in Nis. A descriptive statistic is used to identify areas where crime happens the most. The application of Andersen’s Spatial Point Pattern Test is used to check the hypothesis that spatial crime pattern is stable over time. This hypothesis is not confirmed and it is found that crime move from the city core towards cities’ urban and suburban settlements. The results from the empirical research are of scientific and practical value. This kind of spatial analysis is one of the first in Serbia and Balkans, and the application of the Spatial Point Pattern Test is very first in this region. The results could be useful when creating security strategies and policies to prevent crime by the police, decision-makers, and others.
THE IMPACT OF INTERNATIONAL TOURISM ON ENERGY CONSUMPTION: A PANEL STUDY OF THE WESTERN BALKANS AND THE EUROPEAN UNION
Authors: Petrović Jelena , Dimitrijević Žarko
Published: March 2021

During the 21st century, international tourism has recorded a steady increase and a growing importance for the economic growth and development of many countries. Yet, tourism in general and international tourism in particular require a vast amount of energy for products and services that are needed to satisfy tourists` needs and wants. The purpose of this paper is to analyze the impact of international tourism on the final energy consumption in the Western Balkans and the European Union (EU) countries in the period from 2007 to 2017. The results of regression analysis indicate that the impact of the number of foreign tourists on final energy consumption depends on the level of international tourism development. Concurrently, the results indicate that population and GDP per capita have an important impact on the final energy consumption in the EU and the Western Balkans countries.
BANISHMENT FROM HOME IN SERBAN MEDIEVAL HISTORY
Authors: Đekić Đorđe
Published: March 2021

Banishment from home is an old type of punishment, which was mainly used in regulating family relationships. It was first recorded in the Hammurabi’s Code and subsequently envisaged in other legal systems. The first record of this punishment in Serbian legal history dates back to the medieval times, when King Stephen the First-Crowned banished his wife Eudokia for adultery. It was also recorded in the second Charter of Ziča, in Emperor Dušan's Code, in the abridged version of Mateus Blastares' Syntagma Canonum, and in the Code of Justinian, but not always as a form of punishment. It was more frequently envisaged in the medieval statutes of the Adriatic Sea coastal towns of Kotor, Budva and Skadar. Although it served various purposes, banishment was often used as a form of punishment. It was a common form of punishment for widows and widowers who failed to act on a pledge or failed to take proper care of the deceased spouse's property. It was also applicable in cases when parents (usually the father) wanted to punish their children for disobedience or failure to perform the duties they were expected to perform.
FORENSIC EXPERTISE OF SIGNATURES AND HANDWRITING - MULTIDISCIPLINARY APPROACH
Authors: Mirić Filip , Rodić Aranđelović Dragana
Published: March 2021

Forensic expertise of signatures and handwriting is a very important activity in criminalistics. It reveals whether the defendant is the author of the disputed text or has signed the disputed document. This type of expertise is most often used in cases when it is necessary to prove the existence of the criminal offense of forging a document, but also in many other cases (such as expertise of suicide letters or contracts), which indicates the need for a multidisciplinary approach to  exploring of this kind of expertise.This paper presents the basic characteristics of this form of expertise and indicates the difficulties that may arise in practice. The aim of this paper is to identify opportunities for further development of signature and handwriting expertise in theory and practice, as a powerful tool for detecting many crimes and their perpetrators.
FUZZY IMPLICATIVE FILTERS OF BE-ALGEBRAS BASED ON THE THEORY OF FALLING SHADOWS
Authors: Bandary Ravikumar Kumar , Rafi N. , Davvaz Bijan
Published: March 2021

Based on the idea of falling shadows and fuzzy sets, the notion of a falling fuzzy implicative filter of a BE-algebra is introduced. Relations between fuzzy implicative filters and falling fuzzy implicative filters are provided.
CROSS-MOMENTS COMPUTATION FOR STOCHASTIC CONTEXT-FREE GRAMMARS
Authors: Ilić Velimir M. , Ćirić Miroslav D. , Stanković Miomir S.
Published: March 2021

In this paper we consider the problem of efficient computation of cross-moments of a vector random variable represented by a stochastic context-free grammar. Two types of cross-moments are discussed. The sample space for the first one is the set of all derivations of the context-free grammar, and the sample space for the second one is the set of all derivations which generate a string belonging to the language of the grammar. In the past, this problem was widely studied, but mainly for the cross-moments of scalar variables and up to the second order. This paper presents new algorithms for computing the cross-moments of an arbitrary order, while the previously developed ones are derived as special cases.
GERAGHTY EXTENSION TO k-DIMENSION
Authors: Alshumrani Mohammed , Aydi Hassen , Hazra Suprokash , Ozel Cenap
Published: March 2021

In this paper, we extend Geraghty result [1] to k-dimension.
Bilateral and Bilinear generating functions for the Modified Generalized Sylvester polynomials
Authors: Özmen Nejla
Published: March 2021

The present study deals with some new properties for the Modified generalized Sylvester polynomials. The results obtained here include various families of multilinear and multilateral generating functions, miscellaneous properties and also some special cases for these polynomials. In addition, we derive a theorem giving certain families of bilateral generating functions for the modified generalized Sylvester polynomials and the generalized Lauricella functions. Finally, we get several interesting results of this theorem.
SOME RESULTS ON GENERALIZED $(k,\mu)$-PARACONTACT METRIC MANIFOLDS
Authors: Makhal Sourav
Published: March 2021

The object of this paper is to study Codazzi type of Ricci tensor in generalized $(k,\mu )$-paracontact metric manifolds. Next we study cyclic parallel Ricci tensor in generalized $(k,\mu )$-paracontact metric manifolds. Further, we characterized generalized $(k,\mu )$-paracontact metric manifolds whose structure tensor $\phi$ is $\eta$-parallel. Finally, we investigate locally $\phi$-Ricci symmetric generalized $(k,\mu )$-paracontact metric manifolds.
ON SOME NEW GENERALIZATIONS OF CERTAIN GAMIDOV INTEGRAL INEQUALITIES IN TWO INDEPENDENT VARIABLES AND THEIR APPLICATIONS
Authors: Boukerrioua Khaled , Diabi Dallel , Kilani Brahim
Published: March 2021

The goal of this paper is to derive some new generalizations of certain Gamidov type integral inequalities in two variables which provide explicit bounds on unknown functions. To show the feasibility of the obtained inequalities,some illustrative examples are also introduce.
m−WEAK AMENABILITY OF (2n)−TH DUALS OF BANACH ALGEBRAS
Authors: Ettefagh Mina
Published: March 2021

Let A be a Banach algebra such that its (2n)−th dual for some(n ≥ 1) with first Arens product is m−weakly amenable for some (m > 2n).We introduce some conditions by which if m is odd [even], then A is weakly [2-weakly] amenable.
THE COMPARABLY ALMOST (S,T)- STABILITY FOR RANDOM JUNGCK-TYPE ITERATIVE SCHEMES
Authors: Albaqeri Dhekra M. , Rashwan Rashwan A.
Published: March 2021

The purpose of this paper is to introduce the concept of generalized - weakly con-tractive random operators and study a new concept of stability introduced by Kim [15] which is alled comparably almost stability and then prove the comparably almost (S,T)- stability for the  Jungck-type random iterative schemes. Our results extend, improve and unify the recent results in  [15], [19], [32] and many others. We also give stochastic version of many important known results.
BERTRAND-B CURVES IN THE THREE DIMENSIONAL SPHERE
Authors: Yerlikaya Fırat , Aydemir Ismail
Published: March 2021

We dene a Bertrand-B curve in Riemannian manifold M such that thereexists an isometry \phi of M, that is, \left( \phi \circ \beta \right) (s)=X\left( s,t(s)\right) and the binormal vector of another curve \beta is the paralel vector of binormal vector of \alpha at corresponding points. We obtain the conditions of existence of a Bertrand-B curve in the event E^3, S^3 and H^3 of M. The rst of our main results is that the curve \alpha in E^3 is a Bertrand-B curve if and only if it is planar. Second one, we prove that the curve \alpha with the curvatures \epsilon _{1},\epsilon _{2} in S^3 is a Bertrand-B curve if and only if it is satises \epsilon _{1}^{2}+\epsilon _{2}^{2}=1. Finally, we state that there not exists a Bertrand-B curve in H^3.
CROSS-MOMENTS COMPUTATION FOR STOCHASTIC CONTEXT-FREE GRAMMARS
Authors: Ilić Velimir M , Ćirić Miroslav D , Stanković Miomir S
Published: March 2021

In this paper we consider the problem of efficient computation of cross-moments of a vector random variable represented by a stochastic context-free grammar. Two types of cross-moments are discussed. The sample space for the first one is the set of all derivations of the context-free grammar, and the sample space for the second one is the set of all derivations which generate a string belonging to the language of the grammar. In the past, this problem was widely studied, but mainly for the cross-moments of scalar variables and up to the second order. This paper presents new algorithms for computing the cross-moments of an arbitrary order, while the previously developed ones are derived as special cases.
A QUADRATIC PROGRAMMING MODEL FOR OBTAINING WEAK FUZZY SOLUTION TO FUZZY LINEAR SYSTEMS
Authors: Akrami Abbas , Erfanian Majid
Published: March 2021

Real life applications arising in various ﬁelds of engineering and science (e.g. electrical, civil, economics, dietary, etc.) can be modelled using a system of linear equations. In such models, it may happen that the values of the parameters are not known or they cannot be stated precisely and that only their estimation due to experimental data or experts knowledge is available. In such a situation it is convenient to represent such parameters by fuzzy numbers. In this paper we propose an eﬃcient optimization model for obtaining a weak fuzzy solution to fuzzy linear systems (FLS). We solve some examples and we show that this method is always eﬃcient.
QUASI MAPPING SINGULARITIES
Authors: Alharbi Fawaz
Published: March 2021

We  obtain  a list of all simple classes of singularities of curves  (irreducible  and reducible) in real spaces  of any dimension  with respect to the quasi  equivalence relation.
FUZZY SUBSETS OF THE PHENOTYPES OF F2-OFFSPRING
Authors: Al-Tahan Madeleine , Davvaz Bijan
Published: March 2021

This paper presents a connection between fuzzy sets, biological inheritance and hyperstructures in which we consider the set of phenotypes of the second generation $F_{2}$ in different types of inheritance, define fuzzy subsets of it and construct a sequence of join spaces associated to each of its types.
DOUBLE EXPONENTIAL EULER–SINC COLLOCATION METHOD FOR A TIME–FRACTIONAL CONVECTION–DIFFUSION EQUATION
Authors: Eftekhari Ali
Published: March 2021

In this research, a new version of Sinc-collocation method incorporated with a Double Exponential (DE) transformation is implemented for a class of convectiondiffusion equations that involve time fractional derivative in the Caputo sense. Our approach uses the DE Sinc functions in space and the Euler polynomials in time, respectively. The problem is reduced to the solution of a system of linear algebraic equations. A comparison between the proposed approximated solution and numerical/exact/available solution reveals the reliability and significant advantages of our newly proposed method.
FAMILY OF ELLIPTIC CURVES E(p,q)‎: ‎y2=x2-p2x+q2
Authors: Khazali Mehrdad , Daghigh Hassan
Published: March 2021

In this paper we show that for any two primes p and q greater than 5, theelliptic curve E(p,q) : y2 = x3 − p2x + q2 has rank at least 2. We will also provide twoindependent points on E(p,q). Then we will show that, conjecturally, the family {E(p,q)}contains an infinite subfamily of rank three elliptic curves.
CONJUGATE SEMI-SYMMETRIC NON-METRIC CONNECTIONS
Authors: Diallo Abdoul Salam , Massamba Fortune
Published: March 2021

In this paper, we study a new semi-symmetric non-metric connection. Firstly, we give its conjugate connection. After the generalized conjugate connection and the semi-conjugate connection of the semi-symmetric non-metric connection are also given. Some properties of the conjugate semi-symmetric non-metric connection are given.
EMBEDDING FINITE FIELDS INTO ELLIPTIC CURVES
Authors: Yazdani Kashani Amirmehdi , Daghigh Hassan
Published: March 2021

Many elliptic curve cryptosystems require an encoding function from a ﬁnite ﬁeld Fq into Fq-rational points of an elliptic curve. We propose a uniform encoding to general elliptic curves over Fq. We also discuss about an injective case of SWU encoing for hyperelliptic curves of genus 2. Moreover we discuss about an injective encoding for elliptic curves with a point of order two over a ﬁnite ﬁeld and present a description for these elliptic curves.
SOME PROPERTIES OF EXPONENTIALLY PREINVEX FUNCTIONS
Authors: Noor Muhammad Aslam , Noor Khalida Inayat
Published: March 2021

In this paper, we introduce some new concepts of the exponentially preinvex functions. We investigate several properties of the exponentially preinvex functions and discuss their relations with convex functions. Optimality conditions are characterized by a class of variational-like inequalities. Several interesting results characterizing the exponentially preinvex functions are obtained. Results obtained in this paper can be viewed as signiﬁcant improvement of previously known results.
QUASI-CONFORMAL CURVATURE TENSOR OF GENERALIZED SASAKIAN-SPACE-FORMS
Authors: Chaturvedi Braj B. , Gupta Brijesh K.
Published: March 2021

The present paper deals the study of generalised Sasakian-space-forms with the conditions Cq(ξ,X).S = 0, Cq(ξ,X).R = 0 and Cq(ξ,X).Cq = 0, where R, S and Cq denote Riemannian curvature tensor, Ricci tensor and quasi-conformal curvature tensor of the space-form, respectively and at last, we have given some examples to improve our results.
GENERALIZED BESSEL AND FRAME MEASURES
Authors: Zeinal Zadeh Farhadi Fariba , Asgari Mohammad Sadegh , Mardanbeigi Mohammad Reza , Azhini Mahdi
Published: March 2021

Considering a finite Borel measure $ \mu $ on $ \mathbb{R}^d $, a pair of conjugate exponents $ p, q $, and a compatible semi-inner product on $ L^p(\mu) $, we have introduced $ (p,q) $-Bessel and $ (p,q) $-frame measures as a generalization of the concepts of Bessel and frame measures. In addition, we have defined the notions of $ q $-Bessel sequence and $ q$-frame in the semi-inner product space $ L^p(\mu) $. Every finite Borel measure $\nu$ is a $(p,q)$-Bessel measure for a finite measure $ \mu $. We have constructed a large number of examples of finite measures $ \mu $ which admit infinite $ (p,q) $-Bessel measures $ \nu $. We have showed that if $ \nu $ is a $ (p,q) $-Bessel/frame measure for $ \mu $, then $ \nu $ is $ \sigma $-finite and it is not unique. In fact, by using the convolutions of probability measures, one can obtain other $ (p,q) $-Bessel/frame measures for $ \mu $. We have presented a general way of constructing a $ (p,q) $-Bessel/frame measure for a given measure.
Classification of Conformal Surfaces of Revolution in Hyperbolic 3-Space
Authors: Yüksel Nural , Karacan Murat Kemal
Published: March 2021

In this paper, we classify conformal surfaces of revolution in hyperbolic3-space $\mathbb{H}^{3}(-c^{2})$ satisfying an equation in terms of the position vector field and the Laplace operators with respect to the first,the second and the third fundamental forms of the surface.
ON BÄCKLUND TRANSFORMATIONS WITH SPLIT QUATERNIONS
Authors: Sariaydin Muhammed Talat
Published: March 2021

The present paper deals with the introduction of Bäcklund Transformations with split quaternions in Minkowski space. Firstly, we tersely summarized the basic concepts of split quaternion theory and Bishop Frames of non-null curves in Minkowski space. Then, for Bäcklund transformations defined with each case of non-null curves, we give relationships between Bäcklund transformations and split quaternions. It is also presented some special propositions for transformations constructed with split quaternions. At the end, results obtained with the mathematical model have been evaluated.
SOME NEW TYPES OF CONTINUITY IN ASYMMETRIC METRIC SPACES
Authors: Yaying Taja , Hazarika Bipan , Mohiuddine Syed Adbul
Published: March 2021

Using the notion of forward and backward arithmetic convergence in asymmetric metric space, we define arithmetic $ff$-continuity and arithmetic $fb$-continuity and prove some interesting results in asymmetric metric space. Finally, we introduce the concept of forward (or backward) arithmetic compactness and give some interesting results in asymmetric metric space.
ON SURFACES CONSTRUCTED BY EVOLUTION ACCORDING TO QUASI FRAME
Authors: Yazla Aziz , Sariaydin Muhammed T.
Published: March 2021

The present paper presents evolutions of spherical indicatrix of a space curve according to the quasi-frame. Then, some geometric properties of these surfaces constructed by evolutions have been obtained. At the end, illustrative examples of the spherical images of a space curve have been presented.
EXISTENCE AND BLOW UP FOR A NONLINEAR VISCOELASTIC HYPERBOLIC PROBLEM WITH VARIABLE EXPONENTS
Authors: Mahdi Fatima Z. , Hakem Ali
Published: March 2021

Our aim in this paper is to establish the weak existence theorem andfind under suitable assumptions sufficient conditions on $m, p$ andthe initial data for which the blow up takes place for the followingboundary value problem:$$|u_t|^{\rho}u_{tt}-\Delta u-\Deltau_{tt}+\displaystyle\int_{0}^{t}g(t-s)\Delta u(s)ds+|u_{t}|^{m(x)-2}u_{t}=|u|^{p(x)-2}u.$$This paper extends some of the results obtained by the authors and it is focused on new results which are consequence of the presence ofvariable exponents.
ON $S$-CURVATURE OF A HOMOGENEOUS FINSLER SPACE WITH RANDERS CHANGED SQUARE METRIC
Authors: Rani Sarita , Shanker Gauree
Published: March 2021

The study of curvature properties of homogeneous Finsler spaces with $(\alpha, \beta)$-metrics is one of the central problems in Riemann-Finsler geometry. In the present paper, the existence of invariant vector fields on a homogeneous Finsler space with Randers changed square metric has been proved. Further, an explicit formula for $S$-curvature of Randers changed square metric has been established. Finally, using the formula of $S$-curvature, the mean Berwald curvature of afore said $(\alpha, \beta)$-metric has been calculated.
LEFT INVARIANT $(\alpha,\beta)$-METRICS ON 4-DIMENSIONAL LIE GROUPS
Authors: Atashafrouz Mona , Najafi Behzad , Piscoran Laurian-Ioan
Published: March 2021

Let $G$ be a 4-dimensional Lie group with an invariant para-hypercomplex structure and let $F= \beta+ a\alpha+\beta^2/{\alpha}$ be a left invariant $(\alpha,\beta)$-metric, where $\alpha$ is a Riemannian metric and $\beta$ is a 1-form on $G$, and $a$ is a real number. We prove that the flag curvature of $F$ with parallel 1-form $\beta$ is non-positive, except in Case 2, in which $F$ admits both negative and positive flag curvature. Then, we determine all geodesic vectors of $(G,F)$.
TAUBERIAN THEOREMS FOR THE WEIGHTED MEAN METHOD OF SUMMABILITY OF INTEGRALS
Authors: Ozsarac Firat , Canak Ibrahim
Published: March 2021

Let $q$ be a positive weight function on $\mathbf{R}_{+}:=[0, \infty)$ which is integrable in Lebesgue's sense over every finite interval $(0,x)$ for $0<x<\infty$, in symbol: $q \in L^{1}_{loc} (\mathbf{R}_{+})$ such that $Q(x):=\int_{0}^{x} q(t) dt\neq 0$ for each $x>0$, $Q(0)=0$ and $Q(x) \rightarrow \infty $ as $x \to \infty $.Given a real or complex-valued function $f \in L^{1}_{loc} (\mathbf{R}_{+})$, we define $s(x):=\int_{0}^{x}f(t)dt$ and$$\tau^{(0)}_q(x):=s(x), \tau^{(m)}_q(x):=\frac{1}{Q(x)}\int_0^x \tau^{(m-1)}_q(t) q(t)dt\,\,\, (x>0, m=1,2,...),$$provided that $Q(x)>0$. We say that $\int_{0}^{\infty}f(x)dx$ is summable to $L$ by the $m$-th iteration of weighted mean method determined by the function $q(x)$, or for short, $(\overline{N},q,m)$ integrable to a finite number $L$ if$$\lim_{x\to \infty}\tau^{(m)}_q(x)=L.$$In this case, we write $s(x)\rightarrow L(\overline{N},q,m)$. It is known thatif the limit $\lim _{x \to \infty} s(x)=L$ exists, then $\lim _{x \to \infty} \tau^{(m)}_q(x)=L$ also exists. However, the converse of this implicationis not always true. Some suitable conditions together with the existence of the limit $\lim _{x \to \infty} \tau^{(m)}_q(x)$, which is so called Tauberian conditions, may imply convergence of $\lim _{x \to \infty} s(x)$. In this paper, one- and two-sided Tauberian conditions in terms of the generating function and its generalizations for $(\overline{N},q,m)$ summable integrals of real- or complex-valued functions have been obtained. Some classical type Tauberian theorems given for Ces\`{a}ro summability $(C,1)$ and weighted mean method of summability $(\overline{N},q)$ have been extended and generalized.
ON $\mathcal{I}_2$-CONVERGENCE AND $\mathcal{I}_2$-CAUCHY DOUBLE SEQUENCES OF FUNCTIONS IN 2-NORMED SPACES
Authors: Yegül Sevim , Dündar Erdinç
Published: March 2021

In this study, firstly, we studied some properties of $\mathcal{I}_2$-convergence. Then, we introduced $\mathcal{I}_2$-Cauchy and $\mathcal{I}_2^*$-Cauchy sequence of double sequences of functions in $2$-normed space. Also, were investigated relationships between them for double sequences of functions in $2$-normed spaces.
NORMALIZATION OF HEALTH RECORDS IN THE SERBIAN LANGUAGE WITH THE AIM OF SMART HEALTH SERVICES REALIZATION
Authors: Avdić Aldina R. , Marovac Ulfeta A. , Janković Dragan S.
Published: March 2021

The development of information technology increases its use in various spheres of human activity, including healthcare. Bundles of data and reports are generated and stored in textual form, such as symptoms, medical history, and doctor’s observations of patients' health. Electronic recording of patient data not only facilitates day-to-day work in hospitals, enables more efficient data management and reduces material costs, but can also be used for further processing and to gain knowledge to improve public health. Publicly available health data would contribute to the development of telemedicine, e-health, epidemic control, and smart healthcare within smart cities. This paper describes the importance of textual data normalization for smart healthcare services. An algorithm for normalizing medical data in Serbian is proposed in order to prepare them for further processing (F1-score=0,816), in this case within the smart health framework. By applying this algorithm, in addition to the normalized medical records, corpora of keywords and stop words, which are specific to the medical domain, are also obtained and can be used to improve the results in the normalization of medical textual data.
EIGHTY ONE RICCI-TYPE IDENTITIES
Authors: Vesić Nenad O.
Published: March 2021

In this manuscript, the identities of Ricci Type with respect to a non-symmetric affine connection space are obtained and simplified. The components of commutation formulae are discussed.
COMPARATIVE STUDY OF MUTATION OPERATORS IN THE GENETIC ALGORITHMS FOR THE K-MEANS PROBLEM
Authors: Li Rui , Kazakovtsev Lev A.
Published: March 2021

The k-means problem and the algorithm of the same name are the most commonly used clustering model and algorithm. Being a local search optimization method, the k-means algorithm falls to a local minimum of the objective function (sum of squared errors) and depends on the initial solution which is given or selected randomly. This disadvantage of the algorithm can be avoided by combining this algorithm with more sophisticated methods such as the Variable Neighborhood Search, agglomerative or dissociative heuristic approaches, the genetic algorithms, etc. Aiming at the shortcomings of the k-means algorithm and combining the advantages of the k-means algorithm and rvolutionary approack, a genetic clustering algorithm with the cross-mutation operator was designed. The eﬃciency of the genetic algorithms with the tournament selection, one-point crossover and various mutation operators (without any mutation operator, with the uniform mutation, DBM mutation and new cross-mutation) are compared on the data sets up to 2 millions of data vectors. We used data from the UCI repository and special data set collected during the testing of the highly reliable semiconductor components. In this paper, we do not discuss the comparative eﬃciency of the genetic algorithms for the k-means problem in comparison with the other (non-genetic) algorithms as well as the comparative adequacy of the k-means clustering model. Here, we focus on the inﬂuence of various mutation operators on the eﬃciency of the genetic algorithms only.
MULTIDIMENSIONAL FIXED POINT RESULTS FOR CONTRACTION MAPPING PRINCIPLE WITH APPLICATION
Authors: Handa Amrish
Published: March 2021

The main aim of this article is to study the existence and uniqueness of fixed point for isotone mappings of any number of arguments under contraction mapping principle on a complete metric space endowed with a partial order. As an application of our result we study the existence and uniqueness of the solution to an integral equation. The results we obtain generalize, extend and unify several classical and very recent related results in the literature in metric spaces.
DIRAC OPERATORS ON LIE ALGEBROIDS
Authors: Tarviji Arezo , Mirmohammad Rezaei Morteza
Published: March 2021

We compare the Dirac operator on transitive Riemannian Lie algebroid equipped by spin or complex spin structure with the one defined on to its base manifold‎. Consequently we derive upper eigenvalue bounds of Dirac operator on base manifold of spin Lie algebroid twisted with the spinor bundle of kernel bundle‎.
ARENS REGULARITY OF PROJECTIVE TENSOR PRODUCT
Authors: Shams Kojanaghi Mostfa , Haghnejad Azar Kazem
Published: March 2021

In this paper, we study approximate identity properties, some propositions from Baker, Dales, Lau in general situations and we establish some relationships between the topological centers of module actions and factorization properties with some results in group algebras. We consider under which sufficient and necessary conditions the Banach algebra $A\widehat{\otimes}B$ is Arens regular.
A CLASSIFICATION OF SOME ALMOST α-PARA-KENMOTSU MANIFOLDS
Authors: Pan Quanxiang , Liu Ximin
Published: March 2021

In this paper, we mainly study local structures and curvatures of the almost α-para-Kenmotsu manifolds. In particular, locally symmetric almost α-para-Kenmotsu manifolds satisfying certain nullity conditions are classified.
APPROXIMATION BY JAIN-SCHURER OPERATORS
Authors: Çetin Nursel , Başcanbaz-Tunca Gülen
Published: March 2021

In this paper we deal with Jain-Schurer operators. We give an estimate, related to the degree of approximation, via K-functional. Also, we present a Voronovskaja-type result. Moreover, we show that the Jain-Schurer operator preserves the properties of a modulus of continuity function. Finally, we study monotonicity of the sequence of the Jain-Schurer operators when the attached function is convex and non-decreasing.
RELATIONSHIP BETWEEN MATHEMATICAL LITERACY AND OPPORTUNITY TO LEARN WITH DIFFERENT TYPES OF MATHEMATICAL TASKS
Authors: Hwang Jihyun , Ham Yeajin
Published: March 2021

We investigated how the opportunity to learn (OTL) with different types of mathematics tasks are related to mathematical literacy and the role of perceived control in the relationship between OTL and mathematical literacy. The structural equation modeling was applied to the data of 1,649 Korean students from the PISA 2012 database. OTL with the four different types of tasks – algebraic word problems, procedural tasks, pure mathematics reasoning, and applied mathematics reasoning – were measured via student survey on how often they have encountered each type of task in their mathematics lessons and tests. The results showed that OTL with the procedural tasks was likely to increase mathematical literacy directly and indirectly through internal perceived control. Engaging in the applied reasoning tasks is positively related to external perceived control, but negatively to mathematical literacy.
Prevalence and Factor Assessment of Helicobacter pylori Infection in a Rural Setting
Authors: Jaiswal1 Suresh , Tiwari Bishnu Raj , Sharma Dinesh C
Published: March 2021

Helicobacter pylori, is a spiral-shaped pathogenic bacterium which is believed to cause peptic ulcers, chronic gastritis, active ulcers disease and many gastrointestinal diseases. The study aimed to find out the prevalence of H. pylori infection and factors associated with the infection in a rural setting of Nepal. A cross-sectional study was conducted among 804 participants from March 2019 to April 2020 in a rural setting of Province 2, Nepal. A structured questionnaire was administered to obtain information about the socio-demographic condition, food habits, hygienic practices, and family history. Venous blood was collected for laboratory examination of H. pylori antibodies.Serum anti-H. Pylori antibodies were detected; out of 804 participants 375 (46.6%) were positive for H. pylori infection; 411(51.1%) were female and male 393 (48.9%). The minimum age of the participant was 13, the maximum was 85 with a mean age of 43±15.26. A significant association was found with age group Pvalue 0.012, with religion [P-value 0.021 and OR (95% CI) was 2.938 (1.128-7.650)] and place of residence [P value 0.011 OR (95% CI) was 1.438(1.087-1.904)]. A significant association was also observed with marital status, occupation, total family members and total annual income. A significant association was seen with food habits like consumption of vegetables, onion and garlic, milk and meat products, spicy foods, and fried foods.Even though the prevalence of H. pylori is lower than other still has a higher prevalence than developed countries in the rural area and socio-demographic factors and food habit are associated with H. pylori. Awareness campaigns should be focused on rural areas where education is not primary.
A crônica de jornal: da ponta da linha ao fim da picada
Authors: Betella Gabriela Kvacek
Published: March 2021

A representação da realidade brasileira assume várias formas que misturam as narrativas com a subjetividade de cada autor. Para explorar a dialética entre texto e acontecimento em crônicas de jornal, este artigo esboça um panorama breve da crônica brasileira, destaca a relevância de Machado de Assis e registra uma análise inicial das crônicas de Arnaldo Jabor na Folha de S. Paulo e O Estado de S. Paulo. A crônica de jornal moderna, gênero no qual Jabor é um nome importante, aposta em imagens com uma função de "psicanálise social. É uma re-elaboração da herança da "cultura de janela", deixada por João do Rio. Para os leitores, o efeito é a comunhão perfeita: qualquer pessoa pode se sentir "autor" da crônica. Afinal de contas, a perplexidade que o leitor não sabe expressar está lá, engraçada, irônica, analítica e conclusiva. Porém, isso não é o bastante para a formação de uma consciência nacional, porque o leitor não pode exercitar uma própria racionalidade, resultante do fundo trazido pelo texto. Somente Machado de Assis ofereceu para a crônica tal formação de leitores, com noção política, social e filosófica sobre a história da formação social brasileira. Além disso, o valor literário das colunas de Machado (Bons dias! e A Semana) reside na perspicácia da elaboração de um narrador, fornecendo uma unidade inexistente na crônica atual.
O vate de Freitas ou "Camões decerto não se importará"
Authors: Maffei Luis
Published: March 2021

Dentre os poetas surgidos em Portugal a partir do final dos anos 90, decerto Manuel de Freitas possui uma das mais significativas poéticas, mas não deixa de situar-se dentro de um panorama, pois há uma dicção nova na poesia portuguesa, que pode residir sob o título da coletânea que reúne algumas das vozes mais representativas desta geração, poetas sem qualidades, recolha organizada e prefaciada por Freitas. Tal dicção, que privilegia a abordagem de diversas facetas do real em detrimento de um trabalho que autonomize demasiadamente a linguagem, não se furta a atacar certa tradição poética portuguesa, sobretudo a do século XX pós-pessoano, mas recolhe com bastante atenção, sem abrir mão de alguma reverência, diversos nomes consagrados, sobretudo Camões. E Manuel de Freitas será, indubitavelmente, o poeta sem qualidade que mais dialogará com o vate, realizando não apenas um constante exercício de intertextualidade, mas várias vezes nomeando Camões e fazendo ao autor d'Os Lusíadas verdadeiro louvor, sempre pelo viés da discipularidade.
O otimismo militante de Luuanda
Authors: Martin Vima Lia
Published: March 2021

Luuanda pode ser considerada uma obra representativa do projeto ficcional do escritor angolano Luandino Vieira. Na concepção dos três contos que compõem o livro, bem como em sua organização - que sugerem contigüidade e progressão entre as estórias - revela-se a perspectiva utópica do autor, calcada na afirmação de um saber fundamentalmente ético.
A diáspora africana nos versos de Ntozake Shange
Authors: Coser Stelamaris
Published: March 2021

Associando os conceitos de viagem e de diáspora, este ensaio examina os poemas escritos e produzidos por Ntozake Shange, escritora contemporânea dos Estados Unidos. Suas performances, combinando texto, vídeo, dança e música, afirmam seu espírito afrocêntrico e misturam o pessoal e o político, o lírico e o épico numa obra que conjuga desejo e corpo com sonhos de igualdade e denúncias de violência. A consciência diaspórica do espaço, literatura, história e conjuntura sociopolítica do Caribe e da América Latina, somada à simpatia demonstrada pelo Brasil, contribui para sublinhar e promover as culturas interligadas das Américas.
Descriptive translation studies: uma revisão crítica
Authors: Martins Marcia Amaral Peixoto
Published: March 2021

O objetivo deste artigo e, em um primeiro momento, fazer uma breve revisão das principais contribuições do modelo teórico dos Descriptive Translation Studies (DTS), desenvolvido em meados dos anos 70 por um grupo de estudiosos de Israel e dos Países Baixos preocupados com a estudo da literatura traduzida, para em seguida apontar alguns problemas e lacunas teóricas que não parecem ter sido satisfatoriamente resolvidos em posteriores refinamentos da teoria. A abordagem descritivista fundamenta-se nos seguintes pressupostos: (i) uma visão da literatura como um sistema dinâmico e complexo; (ii) a convicção de que deve haver uma interação permanente entre modelos teóricos e estudos de caso; (iii) uma abordagem da tradução literária de caráter descritivo (portanto, não normativa) e voltada para a texto-alvo, além de funcional e sistêmica; e (iv) um interesse pelas normas e coerções que governam a produção e a recepção de traduções, pela relação entre a tradução e outros tipos de reescritura e pelo lugar e função da literatura traduzida tanto num determinado sistema literário quanto na interação entre literaturas. Nos últimos vinte e cinco anos, a abordagem descritivista vem informando inúmeros estudos sabre o sistema de literatura traduzida de inúmeras culturas, principalmente europeias, mas ainda apresenta alguns problemas que precisam ser melhor trabalhados no âmbito da teoria. Entre estes, destacamos a risco de incorrer num “descritivismo” puro e simples, desprovido de uma elaboração crítica, e a relativa despreocupação em explicitar os fundamentos epistemológicos da teoria e em (re)definir conceitos importantes.
TRANSCENDÊNCIA E CORPOREIDADE: A EXPERIÊNCIA DE DEUS SEGUNDO ADÉLIA PRADO
Authors: Bingemer Maria Clara Lucchetti
Published: March 2021

O artigo procura estudar a obra de Adélia Prado, com destaque para seus livros em prosa, a partir da interação entre experiência do divino e do transcendente e corporeidade. A ótica empregada para realizar tal estudo é a da teologia e da espiritualidade. Par isso, o rumo que o artigo toma é a mística adeliana enquanto experiência de ser sexuado e ao mesmo tempo de ser feito para a comunhão com o mistério de Deus. Em sua corporeidade de mulher, as personagens femininas dos romances de Adélia vão experimentando o drama e a grandeza de serem finitas e no entanto feitas para a comunhão com o Transcendente infinito. Através de suas personagens, é a própria autora que narra seu percurso em direção a uma relação com o divino que inclui o próprio corpo e sua capacidade de sofrimento e gozo, em todas as etapas da vida. Começando na maturidade de seus quarenta anos, a corporeidade de Adélia Prado fala em seus livros do desejo do mistério, da sexualidade como meio de a ele aceder e da salvação experimentada pelo ato maior da escrita e da poesia.
DESARMANDO A TESSITURA: UMA LEITURA DE ‘MEU CORPO DARIA UM ROMANCE’, DE HERBERT DANIEL
Authors: Morando Luiz
Published: March 2021

O presente ensaio tenta desenvolver uma leitura sobre a construção do corpo e da homossexualidade como figuras representadas em Meu corpo daria um romance, de Herbert Daniel. Elementos constitutivos daquela representação como corpo biológico, corpo social e a representação do ser homossexual pelo personagem narrador serão enfocados a fim de analisar as interfaces desta proposta.
"LITERATURA DE SODOMA": O CÂNONE LITERÁRIO E A IDENTIDADE HOMOSSEXUAL
Authors: Lugarinho Mario Cesar
Published: March 2021

Este artigo pretende uma reflexão sobre a formação canônica literária e a emergência da homossexualidade como discurso, sugerida pelo episódio do história e da Iiteratura portuguesa conhecido como a "literatura de Sodoma".
SIGNS OF INTERCOURSE: MATERIAL POETRY AND EROTIC IMPERATIVES
Authors: Perrone Charles A.
Published: March 2021

Rich implementations of expressive alterities within the domain of eroticism and sexuality occur in contemporary experimental poetries in Brazil, including poesia concreta, poema processo, criação intersemiótica or intersignos, and the catch-all name, poesia visual. The designation material poetry emphasizes the clearly pertinent physical qualities of language in this thematic domain and alludes to a noted title in related cultural studies, The Material Queer, which uses the modifier in a sense grounded in historical or dialectical materialism yet also offers the prospect of intriguing connections to non-normative lyrico-graphic texts with respect to identity consciousness. An embodied otherness of factitiousness on the semotic plane may be an apt partner for portraying or performing proscribed, unconventional, or non-mainstream practices: public affection, prostitution, group sex, inter-ethnic union, sodomy, homoeroticism, bisexuality, cross-dressing, fetishes, or other. In Brazilian lyric from 1950 to the present there are select moments that achieve such a confluence of interest, illustrating novelty in the trajectory of poetry as well as diversity or positioning in matters of sexuality.------------------------------------------------------------------------------SIGNOS DE RELAÇÃO: POESIA MATERIAL E IMPERATIVOS ERÓTICOSNo domínio do erotismo e da sexualidade ocorrem ricas implementações de alteridades expressivas em poesias brasileiras experimentais contemporâneas, incluindo poesia concreta, poema processo, criação intersemiótica ou intersignos, e o termo geral, poesia visual. A designação poesia material enfatiza as propriedades físicas da linguagem, evidentemente pertinentes, e alude a um título notável nos estudos culturais relacionados, The Material Queer, que usa o adjetivo num sentido baseado no materialismo dialético ou histórico, mas também oferece possibilidades de conexões fascinantes com textos lírico-gráficos não-normativos com respeito a consciência de identidade. Uma outredade factícia incorporada no plano semiótico pode ser um parceiro apto para fazer retrato ou performance de práticas proscritas, não-convencionais, fora do comum: afeto público, prostituição, sexo grupal, união inter-étnica, sodomia, homoerotismo, bissexualidade, travestismo, fetichismo, ou outras. Na lírica brasileira de 1950 para cá, há momentos seletos que realizam tal confluência de interesses, ilustrando novedade na trajetória da poesia assim como diversidade ou tomada de posição em questões de sexualidade.---Artigo em inglês.
SHOAH: CATÁSTROFE E REPRESENTAÇÃO
Authors: Nestrovski Arthur
Published: March 2021

A partir de uma análise do filme Shoah, de Claude Lanzmann, em contraponto com alguns exemplos da poesia de Paul Celan, o ensaio reflete sobre modos problemáticos da representação na cultura contemporânea. Para muitos artistas contemporâneos, a negação da representação será a única forma de não trair uma experiência que demanda e ao mesmo tempo resiste à interpretação. O estudo dessas vertentes nos leva a um território conflituoso, situado entre a arte e a história.
TERRA À VISTA: APORTANDO NA CANÇÃO
Authors: Tatit Luiz , Lopes Ivã Carlos
Published: March 2021

Os autores examinam, neste texto, os três principais modelos de integração entre melodia e letra empregados na composição de canções no Brasil, verificam seu entrosamento em casos específicos e expõem suas técnicas de aplicação. "Terra", de Caetano Veloso, é o exemplo escolhido para uma demonstração do rendimento descritivo de uma teoria semiótica dedicada a essa linguagem artística. O artigo distingue os conteúdos organizados pela melodia daqueles organizados pela letra, além de caracterizar o sentido que decorre da compatibilidade dos dois componentes no interior da referida canção.