Results 51 to 60 of about 440,479 (151)

Simultaneous detection of the nonlinear restoring and excitation of a forced nonlinear oscillation: an integral approach [PDF]

, 2015
We address in this article, how to calculate the restoring characteristic and the excitation of a nonlinear forced oscillating system. Under the assumption that the forced nonlinear oscillator has a periodic solution with period, we constructed a system ...
Ahmad, Fayyaz, Jang, Taek Soo, Park, Jinsoo, Sung, Hong Gun   +3 more
core   +2 more sources

A semi-automated system for quantifying the oxidative potential of ambient particles in aqueous extracts using the dithiothreitol (DTT) assay: results from the Southeastern Center for Air Pollution and Epidemiology (SCAPE) [PDF]

Atmospheric Measurement Techniques, 2015
A variety of methods are used to measure the capability of particulate matter (PM) to catalytically generate reactive oxygen species (ROS) in vivo, also defined as the aerosol oxidative potential.
T. Fang, V. Verma, H. Guo, L. E. King, E. S. Edgerton, R. J. Weber   +5 more
doaj   +1 more source

Oxidative potential of particles in different occupational environments: a pilot study [PDF]

, 2015
The oxidative potential (OP) of particulate matter has been proposed as a toxicologically relevant metric. This concept is already frequently used for hazard characterization of ambient particles but it is still seldom applied in the occupational field ...
Deslarzes, Simon., Riediker, Michael, Sauvain, Jean-Jacques, Storti, Ferdinand   +3 more
core   +1 more source

Fermions on Non-Trivial Topologies [PDF]

, 2000
An exact expression for the Green function of a purely fermionic system moving on the manifold $\Re \times \Sigma^{D-1}$, where $\Sigma^{D-1}$ is a $(D-1)$-torus, is found.
Aharonov, de Witt, Einarsson, J. Gamboa, Schulman   +4 more
core   +2 more sources

Relativistic theories of interacting fields and fluids

, 2001
We investigate divergence-type theories (DTT) describing the dissipative interaction between a field and a fluid. We look for theories which, under equilibrium conditions, reduce to the theory of a Klein-Gordon scalar field and a perfect fluid.
A. Albrecht, A. D. Dolgov, A. D. Dolgov, A. D. Linde, A. H. Guth, B. L. Hu, C. W. Misner, D. Boyanovsky, D. Jou, E. Calzetta, E. Calzetta, E. Calzetta, E. Calzetta, E. Copeland, E. W. Kolb, Esteban Calzetta, F. Finelli, H. Kreiss, H. Kreiss, I. Liu, J. Lidsey, J. Stewart, L. F. Abbott, L. Kofman, L. Kofman, L. Landau, L. P. Chimento, L. P. Chimento, L. P. Kadanoff, M. E. Carrington, M. Turner, M. Turner, Marc Thibeault, R. Courant, R. Geroch, R. H. Brandenburger, S. A. Ramsey, S. A. Ramsey, S. Jeon, S. Jeon, S. Jeon, S. Khlebnikov, S. Khlebnikov, V. Mukhanov, W. A. Hiscock, W. A. Hiscock, W. Hiscock, W. Israel, W. Israel, W. Zimdahl, W. Zimdahl, W. Zimdahl, W. Zimdahl, Y. Hu   +53 more
core   +1 more source

Introduction of Macromolecules into Bovine Adrenal Medullary Chromaffin Cells and Rat Pheochromocytoma Cells (PC12) by Permeabilization with Streptolysin O: Inhibitory Effect of Tetanus Toxin on Catecholamine Secretion [PDF]

, 1989
Conditions are described for controlled plasma membrane permeabilization of rat pheochromocytoma cells (PC12) and cultured bovine adrenal chromaffin cells by Streptolysin O (SLO).
Ahnert-Hilger G., Ahnert-Hilger G., Ahnert-Hilger G., Bader M. F., Bhakdi S., Bhakdi S., Bhakdi S., Bittner M. A., Brooks J. C., Cazalis M., Duncan J. L., Flodgaard H., Gudrun Ahnert-Hilger, Habermann E., Hugo F., Jahn R., Knight D. E, Manfred Gratzl, Marie-France Bader, Peppers S. C., Rehm H., Sarafian T., Sillen L. G., Simon W., Smyth C. I., Sontag J. M., Sternberger A., Sucharit Bhakdi, Walton K. M., Wilson S. P.   +29 more
core   +1 more source

LEF2 - A strategic freight transport model for Great Britain. [PDF]

, 2005
INTRODUCTION This paper reports some innovative model building that yields a useful addition to models of freight in Great Britain. Currently, the Great Britain Freight Model (GBFM) is part of the Department for Transport's (DtT) national model suite ...
Fowkes, A.S., Johnson, D.H., Whiteing, A.E.   +2 more
core  

A Discrete Tchebichef Transform Approximation for Image and Video Coding

, 2015
In this paper, we introduce a low-complexity approximation for the discrete Tchebichef transform (DTT). The proposed forward and inverse transforms are multiplication-free and require a reduced number of additions and bit-shifting operations.
Bayer, F. M., Cintra, R. J., Kulasekera, S., Madanayake, A., Oliveira, P. A. M.   +4 more
core   +1 more source

Prevalence and Risk Factors for Superinfection with a Difficult-to-Treat Pathogen in Periprosthetic Joint Infections

Antibiotics
Background: Periprosthetic joint infections (PJIs) are considered as one of the most serious complications after total joint arthroplasty. Aim of this study was to evaluate the prevalence of PJI caused by difficult-to-treat (DTT) pathogens as well as ...
Ali Darwich, Tobias Baumgärtner, Svetlana Hetjens, Sascha Gravius, Mohamad Bdeir   +4 more
doaj   +1 more source

Plant Resources, 13C-NMR Spectral Characteristic and Pharmacological Activities of Dammarane-Type Triterpenoids

Molecules, 2016
Dammarane-type triterpenoids (DTT) widely distribute in various medicinal plants. They have generated a great amount of interest in the field of new drug research and development.
Jingya Ruan, Chang Zheng, Lu Qu, Yanxia Liu, Lifeng Han, Haiyang Yu, Yi Zhang, Tao Wang   +7 more
doaj   +1 more source