Browsing College of Science by Title
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Inhomogeneous "longitudinal" plane waves in a deformed elastic material
(Springer, 200501)By definition, a homogeneous isotropic compressible Hadamard material has the property that an infinitesimal longitudinal homogeneous plane wave may propagate in every direction when the material is maintained in a state ... 
Inhomogeneous deformation of brain tissue during tension tests
(Elsevier, 2012)Mechanical characterization of brain tissue has been investigated extensively by various research groups over the past 50 years. These properties are particularly important for modeling Traumatic Brain Injury (TBI). ... 
Inhomogeneous shear of orthotropic incompressible nonlinearly elastic solids: Singular solutions and biomechanical interpretation
(Elsevier, 2009)We present a detailed study of rectilinear shear deformation in the framework of orthotropic nonlinear elasticity, under Dirichlet and mixedboundary conditions. We take a slab made of a soft matrix, reinforced with two ... 
Initial stresses in elastic solids: Constitutive laws and acoustoelasticity
(2011)On the basis of the nonlinear theory of elasticity, the general constitutive equation for an isotropic hyperelastic solid in the presence of initial stress is derived. This derivation involves invariants that couple the ... 
Instabilities in elastomers and soft tissues
(Oxford Journals, 20060915)Biological soft tissues exhibit elastic properties that can be dramatically different from rubbertype materials (elastomers). To gain a better understanding of the role of constitutive relationships in determining material ... 
The integral homology of PSL(2) of imaginary quadratic integers with nontrivial class group
(2011)We show that a cellular complex defined by Flöge allows us to determine the integral homology of the Bianchi groups PSL(2)(O[m]), where O[m] is the ring of integers of an imaginary quadratic number field Q [square root ... 
Interaction of nanoparticles with ideal liquidliquid interfaces
(2009)Using molecular simulations the interaction between a noncharged nanoparticle and an ideal liquidliquid interface is studied. The free energy profile as function of nanoparticleinterface separation is determined using ... 
Interface waves in misoriented prestressed incompressible elastic solids
(Oxford Journals, 20041217)Some relationships, fundamental to the resolution of interface wave problems, are presented. These equations allow for the derivation of explicit secular equations for problems involving waves localized near the plane ... 
Intracellular accumulation of high levels of gammaaminobutyrate by Listeria monocytogenes 10403S in response to low pH: uncoupling of gammaaminobutyrate synthesis from efflux in a chemically defined medium
(American Society for Microbiology, 201006)It is well established that the glutamate decarboxylase (GAD) system is central to the survival of Listeria monocytogenes at low pH, both in acidic foods and within the mammalian stomach. The accepted model proposes that ... 
Investigating the solid state hosting abilities of homo and heterovalent [Co7] metallocalix[6]arenes
(RSC, 2012)A family of homovalent [Co(II)(7)(OH)(6)(L1)(6)](NO3)(2)(1), [(MeOH)(2)subset of Co(II)(7)(OH)(6)(L1)(6)](NO3)(2) (2) (where L1H = 2iminomethyl6methoxyphenol) and heterovalent [(NO3)(2)subset of Co(III)Co(II)(6)(O ... 
Investigating tryptophan quenching of fluorescein fluorescence under protolytic equilibrium
(2009)Fluorescein is one of most used fluorescent labels for characterizing biological systems, such as proteins, and is used in fluorescence microscopy. However, if fluorescein is to be used for quantitative measurements involving ... 
An investigation into the use of MMCTP to tune accelerator source parameters and testing its clinical application.
(2013)This paper presents an alternative method to tune Monte Carlo electron beam parameters to match measured data using a minimal set of variables in order to reduce the model setup time prior to clinical implementation of the ... 
Investigations of the magnetospheric plasma distribution in the vicinity of a pulsar  I Basic formulation
(2008)The magnetospheric plasma distribution in the vicinity of a pulsar at various inclination angles is investigated using a new relativistic, parallel 3D ParticleInCell (PIC) code DYMPHNA3D. DYMPHNA3D uses a superposition ... 
The isolation of strains of Bacillus subtilis showing improved plasmid stability characteristics by means of selective chemostat culture
(19880323)A PUB 110derived plasmid encoding chloramphenicol resistance, kanamycin resistance and hightemperature alphaamylase showed a high degree of segregational instability when inserted into Bacillus subtilis. In an attempt ... 
John Todd and the development of modern numerical analysis
(2012)The purpose of this article is to mark the centenary of the birth of John Todd, a pioneer in the fields of numerical analysis and computational science. A brief account is given of his early life and career, and that of ... 
The June 2008 flare of Markarian 421 from optical to TeV energies
(2008)We present optical, Xray, high energy ($\lessapprox 30$ GeV) and very high energy ($\gtrapprox 100$ GeV; VHE) observations of the highfrequency peaked blazar Mrk 421 taken between 2008 May 24 and June 23. A high energy ... 
Kinematics of the Broad Line Region in M81
(2007)A new model is presented which explains the origin of the broad emission lines observed in the LINER/Seyfert nucleus of M81 in terms of a steady state spherically symmetric inflow, amounting to 1 x 10^5 Msun/yr, which is ... 
Kinetics in signal transduction pathways involving promiscuous oligomerizing receptors can be determined by receptor specificity: Apoptosis induction by TRAIL
(American Society for Biochemistry and Molecular Biology, 2012)Here we show by computer modeling that kinetics and outcome of signal transduction in case of heterooligomerizing receptors of a promiscuous ligand largely depend on the relative amounts of its receptors. Promiscuous ... 
Large acoustoelastic effect
(Elsevier, 201203)Classical acoustoelasticity couples smallamplitude elastic wave propagation to an infinitesimal predeformation, in order to reveal and evaluate nondestructively thirdorder elasticity constants. Here, we see that ... 
Large amplitude Love waves
(Oxford Journals, 20080422)In the context of the finite elasticity theory, we consider a model for compressible solids called 'compressible neoHookean material'. We show how finiteamplitude inhomogeneous plane wave solutions and finiteamplitude ...