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Scientometric Implosion that Leads to Explosion: Case Study of Armenian Journals

Journal of Data and Information Science 2020年第3期5卷 187-196页

作者： shushanik sargsyan Edita Gzoyan Aram Mirzoyan Viktor Blaginin Center for Scientific Information Analysis and Monitoring(CSIAM) Institute for Informatics and Automation ProblemsNational Academy of Sciences of the Republic of Armenia(IIAP NAS RA)0014 YerevanArmenia Yerevan State Medical University after Mkhitar Heratsi Medical Physics Department0025 YerevanArmenia Center on Scientometrics and Ranking Researches.Ural State University of Economics 620014 YekaterinburgRussia

Purpose: The purpose of this study is to introduce a new concept and term into the scientometric discourse and research—scientometric implosion—and test the idea on the example of the Armenian journals. The article argues that the existence of a compressed scientific area in the country makes pressure on the journals and after some time this pressure makes one or several journals explode—break the limited national scientific area and move to the international arena. As soon as one of the local journals breaks through this compressed space and appears at an international level, further explosion happens, which makes the other journals follow the same ***/methodology/approach: Our research is based on three international scientific databases—WoS, Scopus, and RISC CC, from where we have retrieved information about the Armenian journals indexed there and citations received by those journals and one national database—the Armenian Science Citation Index. Armenian Journal Impact Factor(ArmJIF) was calculated for the local Armenian journals based on the general impact factor formula. Journals were classified according to Gl?nzel and Schubert(2003). Findings: Our results show that the science policy developed by the scientific authorities of Armenia and the introduction of ArmJIF have made the Armenian journals comply with international standards and resulted in some local journals to break the national scientific territory and be indexed in international scientific databases of RISC, Scopus, and WoS. Apart from complying with technical requirements, the journals start publishing articles also in foreign languages. Although nearly half of the local journals are in the fields of social sciences and humanities, only one journal from that field is indexed in international scientific databases. Research limitation: One of the limitations of the study is that it was performed on the example of only one state and the second one is that more time passage is needed to firmly

关键词： Sceintometric implosion Armenian Journal Impact Factor(ArmJIF) National scientific databases Armenian Science Citation Index(ASCI) International scientific databases

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International visibility of Armenian domestic journals:the role of scientific diaspora

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数据与情报科学学报:英文版 2023年第2期8卷 93-117页

作者： Edita Gzoyan Aram Mirzoyan Anush sargsyan Mariam Yeghikyan Domenico AMaisano shushanik sargsyan Center for Scientific Information Analysis and Monitoring(CSIAM) Institute for Informatics and Automation ProblemsNational Academy of Sciences of the Republic of Armenia(IIAP NAS RA).1 Paruyr Sevak str.0014 YerevanArmenia Department of Management and Production Engineering(DIGEP) Politecnico di Torino(Italy)TurinItaly

Purpose:Nearly 122 scientific journals are currently being published in Armenia-of which only six are indexed by WoS and/or Scopus *** majority of the national journals are published in the Armenian language,solely possessing abstracts written in English,although there are also English-language and multi-language journals with articles not only in Armenian but also in other foreign *** aim of this article is to study the visibility of the(non-indexed)national Armenian journals in the WoS database through citation analy*** consideration of the existence of a relevant Armenian“diaspora”in the world,this article also attempts to estimate its impact in terms of citation ***/methodology/approach:For this end,we have identified citations to the national/domestic Armenian journals in the WoS database in comparison with the share of citations received from“diaspora”researchers(researchers of Armenian origin born in foreign countries and those originally from Armenia who have emigrated to foreign countries).Findings:Among the 116 Armenian domestic journals analyzed(not indexed by WoS),only 47 were found to be cited in *** these journals,almost 12%are citations by“diaspora”researchers,most of which concern Social Science and Humanities *** limitations:Although the surnames of Armenians end with-i(y)an,sometimes,the Diaspora Armenians,surnames are changed or modified or they are not ending with-i(y)an,in this case we may fail to identify *** implications:This study can help to build new,more deep and comprehensive relations with scientific ***/value:This study offers a new understanding of multifaced research collaboration with scientific diasporas and their role in internationalization of domestic journals.

关键词： Citation analysis National/domestic journal Armenian diaspora Scientific diaspora

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ON THE FOURIER-VILENKIN COEFFICIENTS

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Acta Mathematica Scientia 2017年第2期37卷 293-300页

作者： Martin G.GRIGORYAN Stepan sargsyan Chair of Higher Mathematics Faculty of Physics Yerevan State University

In this article, we prove the following statement that is true for both unbounded and bounded Vilenkin systems： for any ε∈ （0, 1）, there exists a measurable set E C [0, 1） of measure bigger than 1 - s such that for any function f ∈ LI[0, 1）, it is possible to find a function g ∈ L^1 [0, 1） coinciding with f on E and the absolute values of non zero Fourier coefficients of g with respect to the Vilenkin system are monotonically decreasing.

关键词： Vilenkin system expansions Fourier coefficients

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Stability of Macroscopic Binary Systems

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Communications in Theoretical Physics 2019年第11期71卷 1335-1340页

作者： G.G.Adamian N.V.Antonenko H.Lenske V.V.sargsyan Joint Institu te for Nuclear Research 141980 DubnaRussia Ins titut fur Theore tische Physik der Jus tus-Liebig—Uni versit Nt D-35392 GiessenGermany

The Darwin instability effect in the binary systems(di-planets, di-stars, and di-galaxies) is analyzed within the model based on the Regge-like laws. All possible binary stars are found satisfying the Darwin instability condition that requires to search for other mechanism triggering the merger of the contact binary objects. New analytical formulas are obtained for the orbital rotation period and the relative distance between components of the binary system. The decreasing and increasing periods as functions of mass asymmetry are related, respectively, with the non-overlapping and overlapping stage of the binary object evolution.

关键词： Regge laws binary stars and galaxies Darwin instability effect

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Asymptotically Confirmed Hypotheses Method for the Construction of Micropolar and Classical Theories of Elastic Thin Shells

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Advances in Pure Mathematics 2015年第10期5卷 629-642页

作者： Samvel sargsyan Department of Physical Mathematical Sciences Gyumri State Pedagogical Institute Gyumri Armenia

In the present paper asymptotic solution of boundary-value problem of three-dimensional micropolar theory of elasticity with free fields of displacements and rotations is constructed in thin domain of the shell. This boundary-value problem is singularly perturbed with small geometric parameter. Internal iteration process and boundary layers are constructed, problem of their jointing is studied and boundary conditions for each of them are obtained. On the basis of the results of the internal boundary-value problem the asymptotic two-dimensional model of micropolar elastic thin shells is constructed. Further, the qualitative aspects of the asymptotic solution are accepted as hypotheses and on the basis of them general applied theory of micropolar elastic thin shells is constructed. It is shown that both the constructed general applied theory of micropolar elastic thin shells and the classical theory of elastic thin shells with consideration of transverse shear deformations are asymptotically confirmed theories.

关键词： Micropolar Elastic Thin Shell Asymptotic Model Applied Theory

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Scanning Mode Application of Neutron-Gamma Analysis for Soil Carbon Mapping

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Pedosphere 2019年第3期29卷 334-343页

作者： Aleksandr KAVETSKIY Galina YAKUBOVA Nikolay sargsyan Clyde WIKLE Stephen A. PRIOR Henry Allen TORBERT Bryan A. CHIN United States Department of Agriculture-Agricultural Research Service (USDA-ARS) National Soil Dynamics Laboratory Auburn AL 36832 (USA) Auburn University Detection and Food Safety Center Samuel Ginn College of Engineering Auburn AL 36849 (USA)

Soil carbon mapping is extremely useful in assessing the effect of land management practices on soil carbon storage. Applications of neutron-gamma analysis in scanning mode for mapping of soil carbon are discussed. A Global Positioning System(GPS) device and softwares required to simultaneously acquire gamma signals and geographical positions during scanning operations were added to an existing measurement system. The reliability of soil carbon measurements in scanning mode was demonstrated to be in agreement with results acquired from static mode. The error analysis indicated that scanning measurements can be conducted with the same accuracy as static measurements in approximately one fourth the time. To obtain results suitable for mapping analogous to traditional chemical analyses(i.e.,± 0.5 in weight percent or ± 0.5 w%), scanning time over a given site should be ca. 15 min using the current measurement system configuration. Based on this measurement time, a reasonable towing speed of 3–5 km h^-1, the necessity for complete site coverage during scanning, the number of sites(within the surveyed field), and the required total measurement time can be estimated. Soil carbon measurements for 28 field sites(total area ca. 2.5 ha) were conducted in ca. 8 h. Based on acquired data,a soil carbon distribution map was constructed utilizing various softwares. The surveyed field area included an asphalt road that had carbon readings higher than the surrounding land. The clarity with which these carbon-rich zones were delineated on the constructed map represents evidence supporting the veracity of this method. Neutron-gamma analysis technology can greatly facilitate timely construction of soil carbon maps.

关键词： ArcGIS Google Earth Pro IGOR scanning technology soil carbon distribution map soil carbon storage

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Non-Invasive Approach to Early Diagnosis of the Formation of Oncological Neoplasms

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Journal of Cancer Therapy 2023年第4期14卷 202-210页

作者： Rafik sargsyan Gagik Karamyan Luiza Simonyan Armen Manukyan Vahram sargsyan LA Orbeli Institute of Physiology of the National Academy of Sciences of Armenia Erevan USA

The currently developed instrumental approaches for detecting pathological changes in the body have a number of disadvantages. The most important of them is that the equipment is sensitive to the detection of diseases only from a certain threshold level of destructive changes in the body. The present article discusses the possibility of using the new instrumental complex “Bioscope” for early and non-invasive diagnosis of the beginning of the formation of ontological neoplasm’s in the body.

关键词： Cancer Early Non-Invasive Diagnostic Bioscope

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A Nonlinear Autoregressive Scheme for Time Series Prediction via Artificial Neural Networks

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Journal of Computer and Communications 2018年第9期6卷 14-23页

作者： Rohit Raturi Hayk sargsyan Regional Development Center KPMG USA LLP Montvale NJ USA Institute of Informatics National Academy of Sciences of Armenia Yerevan Armenia

This article is devoted to a time series prediction scheme involving the nonlinear autoregressive algorithm and its applications. The scheme is implemented by means of an artificial neural network containing a hidden layer. As a training algorithm we use scaled conjugate gradient (SCG) method and the Bayesian regularization (BReg) method. The first method is applied to time series without noise, while the second one can also be applied for noisy datasets. We apply the suggested scheme for prediction of time series arising in oil and gas pricing using 50 and 100 past values. Results of numerical simulations are presented and discussed.

关键词： Nonlinear Autoregression Time Series Prediction Data Analysis Deep Learning Scaled Conjugate Gradient Method Bayesian Regularization Method

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Mathematical Model of Dynamics of Micropolar Orthotropic Elastic Thin Bars with Free Fields of Displacements and Rotations

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Journal of Mechanics Engineering and Automation 2012年第2期2卷 110-118页

作者： sargsyan Samvel Margaryan Lilit Mathematieal Analysis and Differential Equations Phys. Math./Gyumri State Pedagogical Institute Gyumri 377526 Armenia

In the present paper, initial-boundary value problem of plane stress state of micropolar theory of elasticity is considered for orthotropic material in the domain of thin rectangle. General hypotheses are formulated, which are the qualitative results of the asymptotic method of integration of the stated initial-boundary value problem. On the basis of the accepted hypotheses general applied one-dimensional models of dynamics of bending deformation of micropolar orthotropic elastic thin bars with free fields of displacements and rotations are constructed with and without consideration of shear deformations. With the help of the constructed models different dynamic problems of micropolar bars can be studied. Here concrete problems of free and forced vibrations of hinged supported micropolar orthotropic elastic thin bar are studied. Numerical analysis is done and specific features of dynamic characteristics of micropolar material are revealed. Particularly, it is shown that there is a frequency of vibrations of the micropolar bar that does not depend on bar sizes.

关键词： Dynamics micropolar orthotropic mathematical model free and forced vibrations.

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Observational scalings testing modified gravity

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Research in Astronomy and Astrophysics 2021年第12期21卷 416-420页

作者： Armine Amekhyan Seda sargsyan Arman Stepanian Center for Cosmology and Astrophysics Alikhanian National LaboratoryYerevanArmenia

We consider different observational effects to test a modified gravity approach involving the cosmological constant in the common description of dark matter and dark *** obtain upper limits for the cosmological constant by studying the scaling relations for 12 nearby galaxy clusters,the radiated power from gravitational waves and the Tully-Fisher relation for super spiral *** estimations reveal that,for all these cases,the upper limits forΛare consistent with its actual value predicted by cosmological observations.

关键词： Cosmology:dark energy Cosmology:dark matter Galaxies:clusters:general Galaxies:general

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