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Browsing NU Research Week: abstracts by Title

Browsing NU Research Week: abstracts by Title

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  • Obtaining of gallium nitride thin films 
    Urazbayev, A.; Bolat, R.; Sabitova, A.; Tikhonov, A. (Nazarbayev University, 2014)
    The project executed by a joint team of the Nazarbayev University, Kazakhstan, Lawrence Berkeley National Laboratory, Berkeley, California. The project will start by developing the HiPIMS technology for GaN in an existing ...
  • OFDM based visible light broadcasting systems 
    Kizilirmak, R. C.; Uysal, M. (Nazarbayev University, 2014)
    Visible light communication (VLC) involves the use of light emitting diode (LED)- based illumination infrastructure for communication purposes [1]. Recent experimental studies on VLC have demonstrated data speeds more ...
  • On cognitive readiness in construction decision making 
    Mgbere, C.; Pantouvakis, J. P.; Sadri, S. (Nazarbayev University, 2014)
    Cognitive readiness (CR) in construction is the mental, emotional and interpersonal skills that relate to the way project teams perceive, remember, think, speak and solve problems. CR compliments the necessary technical ...
  • On particle production, negative energy flux and acceleration horizons 
    Good, M. R. R.; Akhmetzhanova, G. (Nazarbayev University, 2014)
    In the moving mirror model, removal of acceleration horizons gives rise to negative energy flux. The total emitted energy is positive and finite, in agreement with quantum inequalities and the second law of thermodynamics ...
  • Operator on types of numberings 
    Mustafa, M. (Nazarbayev University, 2014)
    The reductions constructed permit to give various alternative proofs to known results about d.r.e. and, in general,a-r.e. numberings. For example, one can show that for every recursive ordinal a which is not an w-power ...
  • Optimal current quality of a single-phase multilevel inverter with a staircase modulation 
    Aldabergenov, M.; Familiant, Y. L.; Ruderman, A. (Nazarbayev University, 2014)
    The authors address the problem of optimal current quality for a single-phase multilevel inverter with a staircase modulation (Fig.1). The current quality is characterized by current ripple Normalized Mean Square (NMSc). ...
  • Optimal durability vs. planned obsolescence in the textbook market 
    Peterson, J. (Nazarbayev University, 2014)
    In various durable goods markets, producers have been often accused of engaging in planned obsolescence. This is the practice of reducing product durability or otherwise manipulating the secondary market in order to ...
  • Optimization of single-phase multilevel inverter voltage quality using time domain problem formulation 
    Ornov, N.; Kopanos, G. M.; Ruderman, A. (Nazarbayev University, 2014)
    The multilevel inverter optimal voltage quality problem is formulated in time domain in order to account for all switching harmonics. The numerical solutions establish theoretical voltage quality lower bounds for a ...
  • Optimum shapes of a periodic array of isothermal pipes embedded in a slab subjected to uniform convection 
    Leontiou, T.; Ikram, M.; Beketayev, K.; Fyrillas, M. M. (Nazarbayev University, 2014)
    The project's main objective is to obtain optimum shapes of a periodic array of isothermal pipes that maximize heat transfer. The pipes are embedded in a two-dimensional slab whose surfaces are subjected to uniform convection.
  • Perceptions of control in health: cultural consideration 
    Craig, B. J.; Engstrom, M.C. (Nazarbayev University, 2013)
    This study investigates how much the citizens of Kazakhstan feel they have control over their own health. Efforts in health promotion build on the assumption that the public sees their current health choices and behaviors ...
  • Performance of water-based liquid scintillator 
    Beznosko, D.; Diwan, M.; Hans, S.; Jaffe, D.; Kettell, S.H.; Rosero, R.; Themann, H.; Viren, B.; Worcester, E.; Yeh, M.; Zhang, C. (Nazarbayev University, 2013)
    In order to successfully use both detection techniques with the WbLS, a minimum of about 100 optical photons per MeV of deposited energy should be produced. A test was carried out with the high-energy proton beam using 2 ...
  • Periostin in Inflammatory Bowel Disease (IBD) development and synergistic effects mediated via CCL5 
    Riethmacher, Eva; Vangelista, Luca; Mukanova, Saida; Riethmacher, Dieter (Nazarbayev University, 2018-10-18)
    The incidence of IBD is rising all over the world and is affecting 1 in 4000 people in Europe and 1 in 16.000 in Asia. [1] Welldocumented, reliable numbers for Kazakhstan are currently not available but observations ...
  • Pharmacoeconomic analysis of type 2 diabetes mellitus by vildagliptin medication in Kazakhstan 
    Yelekenova, A.; Bektur, C.; Nurgozhin, T. (Nazarbayev University, 2014)
    This study is aimed to determine cost-effectiveness of vildagliptin in comparison with sitagliptin for the treatment of patients with type 2 diabetes mellitus (T2DM) from the perspective of Ministry of Health of the ...
  • Photonic crystal structures to control light on a nanoscale 
    Tikhonov, A.; Rakhmetova, A.; Koshkinbayeva, A. (Nazarbayev University, 2013)
    A new waveguiding effect in photonic crystals has been discovered. It will be useful for harvesting light for solar energy photovoltaic. We have found that incident light can be efficiently concentrated and redirected along ...
  • PI4,5P2 regulates the polarized trafficking of integrins through EXO70 for directional cell migration 
    Jaguparov, A.; Tursynbay, Y.; Kim, A.; Chao, W. T.; Kunz, J. (Nazarbayev University, 2014)
    The polarized delivery of integrin adhesion molecules to the leading edge is required for cell migration and has been linked to cancer cell invasion, cancer aggressiveness, and poor patient outcome (1,2). Thus, regulators ...
  • PIPK1a regulates RAC1 and akt activation to promote cell migration and proliferation 
    Merzhakupova, D.; Adilgozhina, G.; Kim, A.; Chao, W. T.; Kunz, J. (Nazarbayev University, 2014)
    Rac1 activity is concentrated at the front of migrating cells where it initiates signaling processes necessary for cell migration in normal and pathological situations. The signaling pathways downstream of Rac1 are well ...
  • PIPK1b regulates E-cadherin endocytosis in polarized breast cancer cells and promotes a switch to a migratory phenotype 
    Azhunussova, A.; Shayakhmetov, Y.; Chao, W. T.; Kunz, J. (Nazarbayev University, 2014)
    The endocytosis, degradation, and recycling of cadherins is crucial for the dynamic regulation of adherens junctions and the control of cell-cell adhesion during tissue formation and in many pathological conditions. In ...
  • PIPK1b regulates integrin endocytosis for focal adhesion disassembly by modulating the recruitment of the endocytic machinery to focal adhesions 
    Beisekenova, S.; Ospanova, B.; Kabdullayeva, T.; Chao, W. T.; Kunz, J. (Nazarbayev University, 2014)
    Cell migration and tissue invasion during tumor metastasis require the regulated disassembly of focal adhesions, but the underlying mechanisms remain poorly defined. We previously showed that the turnover of focal adhesions ...
  • Polymer coating enhances affinity of bone marrow-derived MSCS to bone 
    Yantsen, Y.; Askarova, Sholpan; Adambekov, S.; Murata, H.; Andersen, J.; D’Souza, S.; Edington, C.; Koepsel, R.; Russell, A. (Nazarbayev University, 2013)
    The polymer coated cells were shown to be stably attached to bone fragments for at least 2 hours, confirming the bone targeting potential of the polymer. Our next step will be to test this approach in rat model of osteoporosis ...
  • Polymeric materials as photovoltaic materials for solar cells 
    Tastanbekov, D.; Ibraikulov, O.; Koishiyev, G.; Chavez-Vasquez, P.; Chochos, C.; Leclerc, N.; Bechara, R.; Lévêque, P.; Heiser, T. (Nazarbayev University, 2013)
    Investigation revealed that alkyl chains in beta-position (fourth position of thiophene rings) lead to better pi-electron delocalisation due to enchanced planarity, because such position avoids rotational hinderance. Also, ...