45 Result(s)

Chapter

Extracellular Matrix and Smooth Muscle Cells

The arterial wall is a highly organised structure of cells and extracellular matrix (ECM) (see review by Adizugel et al. [1]). The ECM is synthesized by the VSMCs within the arterial wall, which then interact ...

S. J. George, J. L. Johnson in Inflammation and Atherosclerosis (2012)

Article

Grain Size and Texture of Cu₂ZnSnS₄ Thin Films Synthesized by Cosputtering Binary Sulfides and Annealing: Effects of Processing Conditions and Sodium

We investigate the synthesis of kesterite Cu₂ZnSnS₄ (CZTS) polycrystalline thin films using cosputtering from binary sulfide targets followed by annealing in sulfur vapor at 500°C to 650°C. The films are the kest...

W.M. HLAING Oo, J.L. Johnson, A. Bhatia, E.A. Lund… in Journal of Electronic Materials (2011)

Article

Synthesis of Optimized CZTS Thin Films for Photovoltaic Absorber Layers by Sputtering from Sulfide Targets and Sulfurization

Cu₂ZnSnS₄ (CZTS) is a promising alternative for Cu(In,Ga)Se₂ (CIGS) absorber layers in thin film solar cells and is comprised of commodity elements which will enable scale-up of chalcopyrite panel production unhi...

H. Nukala, J. L. Johnson, A. Bhatia, E. A. Lund… in MRS Online Proceedings Library (2010)

Article

Effects of 2^nd Phases, Stress, and Na at the Mo/Cu₂ZnSnS₄ Interface

Cu₂ZnSnS₄ (CZTS) is an alternative material to Cu(In,Ga)Se₂ (CIGSe) for use in thin film photovoltaic absorber layers composed solely of commodity elements [1,2]. Thus, if similar material quality and performance...

J. L. Johnson, H. Nukala, E. A. Lund, W. M. Hlaing Oo… in MRS Online Proceedings Library (2010)

Article

In vitro and in vivo analysis of expression cassettes designed for vascular gene transfer

Increasing the level and duration of transgene expression and restricting expression to vascular cells are important goals for clinically useful gene therapy vectors. We evaluated several promoters, enhancers ...

S J White, E D Papadakis, C A Rogers, J L Johnson, E A L Biessen, A C Newby in Gene Therapy (2008)

Chapter

A dp/dt Method to Assess Dynamic Properties of Lung Mechanoreceptors

The activity of airway slowly adapting mechanoreceptors (SARs) reflects the presence of both a static and dynamic component. The dynamic response is typically assessed by the adaptation index; however, this is...

C. E. Schweitzer, J. L. Johnson, C. A. Escudero… in Integration in Respiratory Control (2008)

Article

Densification behavior of tungsten heavy alloy based on master sintering curve concept

The master sintering curve (MSC) theory is modified by substituting the densification ratio (φ) for the densification parameter (ψ) to identify regions where shrinkage occurs by a similar combination of sinter...

S. J. Park, Randall M. German, J. M. Martin… in Metallurgical and Materials Transactions A (2006)

Article

HgCdTe negative luminescence devices for cold shielding and other applications

Negative luminescence (NL) refers to the suppression of infrared blackbody emission, and hence an apparent temperature reduction, due to free carrier extraction from a reverse-biased p-n junction. A number of ...

J. R. Lindle, W. W. Bewley, I. Vurgaftman, J. R. Meyer… in Journal of Electronic Materials (2006)

Chapter

Relations on Non-commutative Variables and Associated Orthogonal Polynomials

This semi-expository paper surveys results concerning three classes of orthogonal polynomials: in one non-hermitian variable, in several isometric non-commuting variables, and in several hermitian non-commutin...

T. Banks, T. Constantinescu, J.L. Johnson in Operator Theory, Systems Theory and Scatte… (2005)

Article

A 5 mm×5 mm mid-wavelength infrared HgCdTe photodiode array with negative luminescence efficiency ∼95%

The negative luminescence (NL) efficiency of a 5 mm×5 mm array (100% effective fill factor) of HgCdTe photodiodes (λ_co=4.8 µm at 295 K) has been measured as a function of temperature. The internal NL efficiency o...

J. R. Lindle, W. W. Bewley, I. Vurgaftman, J. R. Meyer… in Journal of Electronic Materials (2004)

Article

Control of H⁺/Lactose Coupling by Ionic Interactions in the Lactose Permease ofEscherichia coli

A combinatorial approach was used to study putative interactions among six ionizable residues (Asp-240, Glu-269, Arg-302, Lys-319, His-322, and Glu-325) in the lactose permease. Neutral mutations were made inv...

J. L. Johnson, R. J. Brooker in The Journal of Membrane Biology (2004)

Article

Histopathologic characteristics, recurrence patterns, and survival of 129 patients with desmoplastic melanoma

K. E. Posther, P. J. Mosca, M. A. Selim, W. E. Stanley… in Annals of Surgical Oncology (2004)

Article

Comparative In Vitro Surveillance of Amoxicillin-Clavulanic Acid and Four Oral Comparators Against 21,232 Clinical Isolates from Europe

The present study was conducted to determine the in vitro activity of amoxicillin-clavulanic acid compared to that of four newer antimicrobial agents (ampicillin, azithromycin, cefuroxime and trimethoprim-sulf...

D. J. Hoban, S. K. Bouchillon, J. L. Johnson… in European Journal of Clinical Microbiology … (2003)

Article

BCL-2 in prostate cancer: A minireview

Prostate cancer progression and the development of androgen-independent prostate cancer have been largely related to a number of genetic abnormality that affect not only the androgen receptor but also crucial ...

S. D. Catz, J. L. Johnson in Apoptosis (2003)

Article

The Mo−OH proton of the low-pH form of sulfite oxidase: Comparison of the hyperfine interactions obtained from pulsed ENDOR, CW-EPR and ESEEM measurements

Pulsed electron nuclear double resonance (ENDOR) spectra have been obtained for the exchangeable Mo-OH proton of the low-pH form of native chicken liver sulfite oxidase (SO) and recombinant human SO for the fi...

A. V. Astashkin, A. M. Raitsimring, C. Feng, J. L. Johnson… in Applied Magnetic Resonance (2002)

Article

InAs/InGaSb photodetectors grown on GaAs bonded substrates

The results of wafer fusion between GaAs and InP followed by transfer of an InGaAs film from the InP to GaAs substrate are presented in this paper. This technique of film transfer allowed the subsequent growth...

M. F. Vilela, K. A. Anselm, N. Sooriar, J. L. Johnson… in Journal of Electronic Materials (2001)

Article

A Triple Mutant, K319N/H322Q/E325Q, of the Lactose Permease Cotransports H⁺ with Thiodigalactoside

In a previous study, we characterized a lactose permease mutant (K319N/E325Q) that can transport H⁺ ions with sugar. This result was surprising because other studies had suggested that Glu-325 plays an essential...

J.L. Johnson, M.S.K. Lockheart, R.J. Brooker in The Journal of Membrane Biology (2001)

Article

HgCdZnTe quaternary materials for lattice-matched two-color detectors

As the number of bands and the complexity of HgCdTe multicolor structures increases, it is desirable to minimize the lattice mismatch at growth interfaces within the device structure in order to reduce or elim...

S. M. Johnson, J. L. Johnson, W. J. Hamilton… in Journal of Electronic Materials (2000)