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School of Science and Technology: Recent submissions

  • Rat, Sara (Nazarbayev University, School of Science and Technology, 2018)
    The Financial Risk Management (FRM) aims to identify, measure and manage risks in different sectors. One of the core things during such operations is measuring different dependencies. Linear correlation is known as one of ...
  • Omarov, Daniyar (2018)
    A novel procedure based on the Sturm’s theorem for real-valued polynomials is developed to predict and identify periodic solutions and non-periodic solutions in the pull-in analysis of a graphene-based MEMS lumped parameter ...
  • Madiyeva, Aigerim (2018-05-10)
    In this Capstone Project, we analyze a second order nonlinear ordinary differential equation (NODE), y^" (x)=f(y^',y) that is impossible to solve analytically. First, using the Taylor Power Series method, we obtain a series ...
  • Kabdolov, Olzhas (Nazarbayev University, School of Science and Technology, 2018-05)
    Recurrent neural networks are very powerful sequence models which are used for language modeling as well. Under correct regularization such as naive dropout these models are able to achieve substantial improvement in their ...
  • Shakir, Akyl (Nazarbayev University, School of Science and Technology, 2018-05)
    We apply singularity analysis in complex time to investigate the solutions of a dynamical system of one degree of freedom related to the oscillations of a Micro-Electro-Mechanical System (MEMS) of nonlinear elasticity. ...
  • Amangeldi, Medeu (Nazarbayev University, School of Science and Technology, 2018-05-13)
    This paper presents the application of an iterative approach for prediction of uranium price by model identification, parameter estimation and diagnostic checking which are designed by Box and Jenkins. In particular, the ...
  • Alekberova, Nargiz (Nazarbayev University, School of Science and Technology, 2018-05-10)
    This project presents a generalization of the classical logistic and the Gompertz model by using two parameter power law exponent. The suggested generalized with two parameters models was shown by numerical example to be ...
  • Boardman, A.D.; Grimalsky, V.V.; Guo, T.; Kibler, B.; McNiff, J.; Nefedov, I.; Rapoport, Y.; Argyropoulos, C.; Valagiannopoulos, C. (Nazarbayev University School of Science and Technology, 2018-05-07)
    The investigation of hyperbolic metamaterials, shows that metal layers that are part of graphene structures, and also types I and II layered systems, are readily controlled. Since graphene is a nicely conducting sheet it ...
  • Valagiannopoulos, Constantinos A.; Tsitsas, Nikolaos L.; Sihvola, Ari H. (Nazarbayev University School of Science and Technology, 2016-08-18)
    A ground-penetrating radar (GPR) antenna excites a perfectly electric conducting inclusion buried inside the ground. The scattering problem is solved semi-analytically via integral equation techniques. The permittivity and ...
  • Valagiannopoulos, Constantinos A.; Lagoudakis, Pavlos G. (Nazarbayev University School of Science and Technology, 2018-04-13)
    Based on effective-medium approximation, we analytically optimize the color conversion of GaN-based light-emitting p–n junctions, with respect to the size and spatial density of the used photonic crystals (PhCs), being ...
  • Tretyakov, Sergei; Valagiannopoulos, Constantinos; Ra’di, Younes; Simovski, Constantin (IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS), 2017-11-13)
    Abstract—Conventional wireless power transfer systems consist of a microwave power generator located at one place and a microwave power receiver located at a distance. To realize efficient power transfer, the system ...
  • Sun, Xiaoming; Shi, Yi; Akahoshi, Tomohiro; Fujiwara, Mamoru; Gatanaga, Hiroyuki; Schönbach, Christian; Kuse, Nozomi; Appay, Victor; Gao, George F.; Oka, Shinichi; Takiguchi, Masafumi (Cell Reports, 2016-06-07)
    Summary The mechanistic basis for the progressive accumulation of Y135F Nef mutant viruses in the HIV-1-infected population remains poorly understood. Y135F viruses carry the 2F mutation within RW8 and RF10, which are two ...
  • Barteneva, Natasha S.; Baiken, Yeldar; Fasler-Kan, Elizaveta; Alibek, Kenneth; Wang, Sheng; Maltsev, Natalia; Ponomarev, Eugene D.; Sautbayeva, Zarina; Kauanova, Sholpan; Moore, Anna; Beglinger, Christoph; Vorobjev, Ivan A. (Biochimica et Biophysica Acta (BBA) - Reviews on Cancer, 2017-12-01)
    Abstract Extracellular vesicle (EV) production is a universal feature of metazoan cells as well as prokaryotes (bMVs - bacterial microvesicles). They are small vesicles with phospholipid membrane carrying proteins, DNA and ...
  • Hennig, D.; Mulhern, C.; Schimansky-Geier, L.; Tsironis, G.P.; Hänggi, P. (Physics Reports, 2015-07-20)
    Abstract The physics of activated escape of objects out of a metastable state plays a key role in diverse scientific areas involving chemical kinetics, diffusion and dislocation motion in solids, nucleation, electrical ...
  • Oikonomou, Th.; Nergis, A.; Lazarides, N.; Tsironis, G.P. (Chaos, Solitons & Fractals, 2014-12-01)
    Abstract Nonequilibrium, quasi-stationary states of a one-dimensional “hard” ϕ4 deterministic lattice, initially thermalised to a particular temperature, are investigated when brought into contact with a stochastic thermal ...
  • Masutani, Mitsuko; Baiseitov, Diaz; Itoh, Tasuku; Hirai, Takahisa; Berikkhanova, Kulzhan; Murakami, Yasufumi; Zhumadilov, Zhaxybay; Imahori, Yoshio; Hoshi, Masaharu; Itami, Jun (Applied Radiation and Isotopes, 2014-06-01)
    Abstract To understand the mechanism of tumor cell death induced by boron neutron capture therapy (BNCT) and to optimize BNCT condition, we used rat tumor graft models and histological and biochemical analyses were carried ...
  • Jin, Yong-Ri; Stohn, J. Patrizia; Wang, Qiaozeng; Nagano, Kenichi; Baron, Roland; Bouxsein, Mary L.; Rosen, Clifford J.; Adarichev, Vyacheslav A.; Lindner, Volkhard (Bone, 2017-04-01)
    Abstract Collagen triple helix repeat-containing1 (Cthrc1) has previously been implicated in osteogenic differentiation and positive regulation of bone mass, however, the underlying mechanisms remain unclear. Here we ...
  • Zaurbekova, Z.; Chikhray, Y.; Ponkratov, Y.; Baklanov, V.; Abdullin, K.; Kulsartov, T.; Gordienko, Y.; Tazhibayeva, I.; Skakov, M.; Mukanova, A. (Materials Today: Proceedings, 2017-01-01)
    Abstract The paper describes a technique of CNT synthesis on the fibers of carboxylic fabric. It consists of three operational stages: creation of the experimental facility based on high-temperature quartz flow reactor; ...
  • Bountis, Tassos; Vanhaecke, Pol (Physics Letters A, 2016-12-09)
    Abstract We use a strong version of the Painlevé property to discover and characterize a new class of n-dimensional Hamiltonian Lotka–Volterra systems, which turn out to be Liouville integrable as well as superintegrable. ...
  • Shevtsov, Alexandr; Ramanculov, Erlan; Shevtsova, Elena; Kairzhanova, Alma; Tarlykov, Pavel; Filipenko, Maxim; Dymova, Maya; Abisheva, Gulzada; Jailbekova, Aygul; Kamalova, Dinara; Chsherbakov, Andrei; Tulegenov, Samat; Akhmetova, Assel; Sytnik, Igor; Karibaev, Talgat; Mukanov, Kasim (Infection, Genetics and Evolution, 2015-08-01)
    Abstract Brucellosis is an endemic disease in Central Asia characterized by high infection rates in humans and animals. Currently, little is known about the genetic diversity of Brucella spp. circulating in the region, ...