Now showing items 2091-2110 of 2418

    • A spatial version of Wedderburn’s Principal Theorem 

      Livshits, L.; MacDonald, G.W.; Marcoux, L.W.; Radjavi, H. (Taylor & Francis, 2015)
      In this article we verify that ‘Wedderburn’s Principal Theorem’ has a particularly pleasant spatial implementation in the case of cleft subalgebras of the algebra of all linear transformations on a finite-dimensional vector ...
    • Spatially localized cluster solutions in inhibitory neural networks 

      Ryu, Hwayeon; Miller, Jennifer; Teymuroglu, Zeynep; Wang, Xueying; Booth, Victoria; Campbell, Sue Ann (Elsevier, 2021-06)
      Neurons in the inhibitory network of the striatum display cell assembly firing patterns which recent results suggest may consist of spatially compact neural clusters. Previous computational modeling of striatal neural ...
    • Spatially-Implicit Modelling Of Disease-Behaviour Interactions In The Context Of Non-Pharmaceutical Interventions 

      Ringa, Notice; Bauch, Chris T. (American Institute of Mathematical Sciences, 2018-04-01)
      Pair approximation models have been used to study the spread of infectious diseases in spatially distributed host populations, and to explore disease control strategies such as vaccination and case isolation. Here we ...
    • Speciation dynamics of oxyanion contaminants (As, Sb, Cr) in argillaceous suspensions during oxic-anoxic cycles 

      Markelova, Ekaterina; Couture, Raoul-Marie; Parsons, Christopher T.; Markelov, Igor; Madé, Benoit; Van Cappellen, Philippe; Charlet, Laurent (Elsevier, 2018-04-01)
      Argillaceous geological formations are considered promising repositories for waste containing inorganic contaminants. However, the sequestration capacity of an argillaceous natural barrier may change as a result of dynamic ...
    • Species sensitivity of early face and eye processing 

      Itier, Roxane J.; Van Roon, Patricia; Alain, Claude (Elsevier, 2011-02-25)
      Humans are better at recognizing human faces than faces of other species. However, it is unclear whether this species sensitivity can be seen at early perceptual stages of face processing and whether it involves species ...
    • Spectral energy balance in dry convective boundary layers 

      Sandham, James; Waite, Michael L (Taylor and Francis, 2015-04)
      Three-dimensional large-eddy simulations (LES) of the convective boundary layer over a domain of approximately 6 km are performed with the UCLA LES model. Simulations are forced with a constant surface heat flux and ...
    • Spectral properties of tensor products of channels 

      Jaques, Samuel; Rahaman, Mizanur (Elsevier, 2018-09-15)
      We investigate spectral properties of the tensor products of two completely positive and trace preserving linear maps (also known as quantum channels) acting on matrix algebras. This leads to an important question of when ...
    • Spectrophotometric method for simultaneous measurement of zinc and copper in metalloproteins using 4-(2-pyridylazo)resorcinol 

      Doyle, Colleen M.; Naser, Dalia; Bauman, Heather A.; Rumfeldt, Jessica; Meiering, Elizabeth M. (Elsevier, 2019-08-15)
      Bound metals are observed in a great many natural proteins, where they perform diverse roles in determining protein folding, stability and function. Due to the broad impact of bound metals on biophysical and biochemical ...
    • Sphere on tile ballistic impact experiment to characterize the response of soda lime glass 

      Sathananthan, Prusodman; Sirois, Alexandra; Singh, Dilaver; Cronin, Duane (Elsevier, 2019-11)
      Robust computational models of soda-lime silicate glass (SLG) are used in the development of transparent armor systems, which require an independent set of experimental data with known boundary conditions for model validation. ...
    • Spiky gold shells on magnetic particles for DNA biosensors 

      Bedford, Erin E.; Boujday, Souhir; Pradier, Claire-Marie; Gu, Frank X. (Elsevier, 2018-05-15)
      Combined separation and detection of biomolecules has the potential to speed up and improve the sensitivity of disease detection, environmental testing, and biomolecular analysis. In this work, we synthesized magnetic ...
    • Spin-orbit states of neutron wave packets 

      Nsofini, Joachim; Sarenac, Dusan; Wood, Christopher J.; Cory, David G.; Arif, Muhammad; Clark, Charles W.; Huber, Michael G.; Pushin, Dimitry A. (American Physical Society, 2016-07-13)
      We propose amethod to prepare an entangled spin-orbit state between the spin and the orbital angular momenta of a neutron wave packet. This spin-orbit state is created by passing neutrons through the center of a quadrupole ...
    • The Spoke-Hub-and-Node Model of Integrated Heart Failure Care 

      Huitema, Ashlay A.; Harkness, Karen; Heckman, George A.; McKelvie, Robert S. (Elsevier, 2018-07-01)
      Heart failure (HF) is a significant public health concern. Specialized HF clinics provide the optimal environment to address the complex needs of these patients and improve outcomes. The current and growing population of ...
    • Spontaneous eye-movements in neutral and emotional gaze-cuing: An eye-tracking investigation 

      McCrackin, Sarah D; Soomal, Sarika K; Patel, Payal; Itier, Roxane J. (Elsevier, 2019-04)
      Our attention is spontaneously oriented in the direction where others are looking. This attention shift manifests as faster responses to peripheral targets when they are gazed at by a central face instead of gazed away ...
    • Spontaneous Tilting Transition in Liquid-Crystalline Polymer Brushes 

      Blaber, Steven; Abukhdeir, Nasser Mohieddin; Matsen, Mark (2019)
      The equilibrium phase behavior of main-chain liquid-crystalline polymer brushes in good solvent is investigated using self-consistent field theory. The calculation assumes semi-dilute brushes, where the grafting density ...
    • Spontaneous weaving: 3D porous PtCu networks with ultrathin jagged nanowires for highly efficient oxygen reduction reaction 

      Ying, Jie; Jiang, Gaopeng; Cano, Zachary Paul; Ma, Zhong; Chen, Zhongwei (Elsevier, 2018-11-15)
      We report a simple and efficient surfactant-free method to prepare 3D porous PtCu networks with ultrathin jagged nanowires and controllable composition. The morphological evolution and the influential effects of the important ...
    • Stability analysis by contraction principle for impulsive systems with infinite delays 

      Liu, Xinzhi; Ramirez, Cesar (Elsevier, 2020-03)
      This paper studies a class of quasi-linear impulsive systems of functional differential equations with infinite time delay. By employing the contraction principle, several criteria on uniform stability and asymptotic ...
    • Stability and Well-posedness of a Nonlinear Railway Track Model 

      Edalatzadeh, M. Sajjad; Morris, Kirsten (Institute of Electrical and Electronics Engineers, 2018-06-22)
      Railway tracks rest on a foundation known for exhibiting nonlinear viscoelastic behavior. Railway track deflections are modeled by a semilinear partial differential equation. This paper studies the stability of solutions ...
    • Stability of Connected Autonomous Vehicle Networks with Commensurate Time Delays 

      Al-Darabsah, Isam; Al Janaideh, Mohammad; Campbell, Sue Ann (IEEE, 2021-05)
      In this paper, we study the stability of Connected Autonomous Vehicle Networks (CAVN) with commensurate time delays under the assumption that communication time delays increase as the distance between the vehicles increases. ...
    • A Stability Theorem for Matchings in Tripartite 3-Graphs 

      Haxell, Penny; Narins, Lothar (Cambridge University Press, 2018-04-02)
      It follows from known results that every regular tripartite hypergraph of positive degree, with n vertices in each class, has matching number at least n/2. This bound is best possible, and the extremal configuration is ...
    • Stability, bifurcation and phase-locking of time-delayed excitatory-inhibitory neural networks 

      Ryu, Hwayeon; Campbell, Sue Ann (AIMS Press, 2020-11)
      We study a model for a network of synaptically coupled, excitable neurons to identify the role of coupling delays in generating different network behaviors. The network consists of two distinct populations, each of which ...

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