How the Cosmological Constant Affects the Gravastar Formation (2009)
Here we generalized a previous model of gravastar consisted of an internal de Sitter spacetime, a dynamical infinitely thin shell with an equation of state, but now we consider an external de...
Thomas Huckle, Faculty For Informatik, Tu Munich, R. Chan, Q. Chang
We extend the theory of Multigrid methods developed for PDE, Toeplitz and related matrices to the Block Toeplitz case. Prolongations and restrictions are defined depending on the zeroes of the...
Stable Gravastars of Anisotropic Dark Energy (2008)
Chan, R., Rocha, P., Wang, Anzhong
Dynamical models of prototype gravastars made of phantom energy are constructed, in which an infinitely thin spherical shell of a perfect fluid with the equation of state $p = (1-\gamma)\sigma$...
Stable and "bounded excursion" gravastars, and black holes in Einstein's theory of gravity (2008)
Rocha, P., Chan, R., Wang, Anzhong
Dynamical models of prototype gravastars are constructed and studied. The models are the Visser-Wiltshire three-layer gravastars, in which an infinitely thin spherical shell of a perfect fluid with...
Validati~g ~Qftware Architectures for Nigh Reliability (2008)
W. K. Ehrlich, R. Chan, W. J. Donnelly, H. H. Park, M. B. Saltzman, P. Verma
In this paper, we present a generic approach for quantitatively evaluating the pe~ormance implications of a software architecture using the concept of operational projile from software reliability...
Self-Similar Gravitational Collapse with Standard and Dark Energy (2008)
We study the evolution of a perfect fluid with self-similarity of the second kind. The fluid moves along time-like geodesics with a self-similar parameter $\alpha = -3$. Since the metric obtained is...
Segmenting and tracking the left ventricle by learning the dynamics in cardiac images (2008)
W. Sun, M. Cetin, R. Chan, V. Reddy, G. Holmvang, V. Ch, ...
Abstract. Having accurate left ventricle (LV) segmentations across a cardiac cycle provides useful quantitative (e.g. ejection fraction) and qualitative information for diagnosis of certain heart...
Bounded excursion stable gravastars and black holes (2008)
Rocha, P., Miguelote, A. Y., Chan, R., Da Silva, M. F., Santos, N. O., Wang, Anzhong
Dynamical models of prototype gravastars were constructed in order to study their stability. The models are the Visser-Wiltshire three-layer gravastars, in which an infinitely thin spherical shell of...
Star Models with Dark Energy (2008)
We have constructed star models consisting of four parts: (i) a homogeneous inner core with anisotropic pressure (ii) an infinitesimal thin shell separating the core and the envelope; (iii) an...
Self-similar solutions of a collapsing perfect fluid and a massless scalar field with kinematic self-similarity of the first kind in 2+1 dimensions are obtained. Their local and global properties of...
On Anisotropic Dark Energy (2008)
Since the discovery of the accelerated expansion of the universe, it was necessary to introduce a new component of matter distribution called dark energy. The standard cosmological model considers...
The 2+1-dimensional geodesic circularly symmetric solutions of Einstein-massless-scalar field equations with negative cosmological constant are found and their local and global properties are...
We present in this work the study of the linear perturbations of the 2+1-dimensional circularly symmetric solution, obtained in a previous work, with kinematic self-similarity of the second kind. We...
Collapsing Scalar Field with Kinematic Self-Similarity of the Second Kind in 2+1 Gravity (2004)
All the 2+1-dimensional circularly symmetric solutions with kinematic self-similarity of the second kind to the Einstein-massless-scalar field equations are found and their local and global...
Gravitational Collapse of Self-Similar and Shear-free Fluid with Heat Flow (2002)
A class of solutions to Einstein field equations is studied, which represents gravitational collapse of thick spherical shells made of self-similar and shear-free fluid with heat flow. It is shown...
Results of Prevention of REStenosis with Tranilast and its Outcomes (PRESTO) trial (2002)
Holmes, D.R. Jr, Granett, J.R., Popma, J., Serruys, P.W., Fitzgerald, P., Fischman, D., ...
BACKGROUND: Restenosis after percutaneous coronary intervention (PCI) is a major problem affecting 15% to 30% of patients after stent placement. No oral agent has shown a beneficial effect on...
Spirometric assessment of pulmonary function in road-side vendors:a pilot study (2002)
Jones, A., Dean, E., Lo, Sing Kai, Chan, K., Chan, R., Chan, R., ...
Spirometric assessment of pulmonary function in road-side vendors:a pilot study (2002)
Jones, A., Dean, E., Lo, Sing Kai, Chan, K., Chan, R., Chan, R., ...
EVOLUTION OF MYRMECOPHYTISM IN WESTERN MALESIAN MACARANGA (EUPHORBIACEAE) (2001)
Stuart J. Davies, R. Chan, L. K. Wang
Plants inhabited by ants (myrmecophytes) have evolved in a diversity of tropical plant lineages. Macaranga includes approximately 300 paleotropical tree species; in western Malesia there are 26...
Armstrong, P W, Graffagnino, C, Kereiakes, D J, Sigmon, K N, ...
BACKGROUND: Antiplatelet therapy is the mainstay of the treatment and secondary prevention of cardiovascular and cerebrovascular ischemic events. We assessed the safety, tolerability, and...
Easton, J D, Amarenco, P, Califf, R, Harrington, R, Graffagnino, C, ...
BACKGROUND: Platelets play a key role in the pathogenesis of atherosclerosis, thrombosis, and acute coronary and cerebrovascular syndromes. Inhibition of platelet function by acetylsalicylic acid...
Nonlinear Optics Technology. Volume 1. Solid State Laser Technology. Phase 3. (1998)
Brock, J., Chan, R., Lembo, L., Ho, J., Injeyan, H.
A novel regenerative amplifier concept, suitable for extraction from low gain, high saturation fluence, solid state media has been investigated. The concept is called multipass etalon-coupled...
Imoedemhe, D.A.G., Shaw, R.W., Kirkland, A., Chan, R.
Endometrial thickness was measured ultrasonographically in three groups of patients undergoing in-vitro fertilization (IVF) on three different ovulation induction regimens. The endometrial thickness...
Endocrine modulation of the neurotoxicity of gp120: Implications for AIDS-related dementia complex
Brooke, S., Chan, R., Howard, S., Sapolsky, R.
HIV infection often involves the development of AIDS-related dementia complex, a variety of neurologic, neuropsychologic, and neuropathologic impairments. A possible contributor to AIDS-related...
Cefoperazone compared with ampicillin plus tobramycin for severe biliary tract infections.
Bergeron, M G, Mendelson, J, Harding, G K, Mandell, L, Fong, I W, Rachlis, A, ...
In a prospective, randomized, multicenter study, the efficacy and safety of cefoperazone and the combination ampicillin-tobramycin as initial therapy for patients with severe acute biliary tract...
Irvin, R T, MacAlister, T J, Chan, R, Costerton, J W
A heptose-deficient lipopolysaccharide strain of Escherichia coli O8, strain F515, was found to release portions of its outer membrane when cells were exposed to 10 mM citrate buffer (pH 2.75) for 30...
Gabbott, M, Cossart, Y E, Kan, A, Konopka, M, Chan, R, Rose, B R
This study provides the first systematic evaluation of papillomavirus type and viral mutation occurring during the course of juvenile-onset recurrent respiratory papillomatosis. One hundred...
Chan, R, Lam, J S, Lam, K, Costerton, J W
Five strains of Pseudomonas aeruginosa that are routinely distinguished by diagnostic laboratories on the basis of their colony morphology on agar media were grown in different media to assess the...
Chan, R, Acres, S D, Costerton, J W
The attachment of enterotoxigenic Escherichia coli (ETEC) strain B44 (O9:K30:K99:F41:H-) to the ileal epithelium of newborn colostrum-fed calves was studied by electron microscopy. Stabilization of...
Evaluation of lysis filtration as an adjunct to conventional blood culture.
Chan, R, Munro, R, Tomlinson, P
A lysis filtration system was used in conjunction with conventional broth culture for 1112 blood cultures. The system, which entailed collection of 5 ml of blood into bottles containing 50 ml...
Lam, J, Chan, R, Lam, K, Costerton, J W
Direct electron microscopic examination of postmortem lung material from cystic fibrosis patients infected with Pseudomonas aeruginosa has shown that these bacterial cells form distinct...
Chan, R., Lian, C.J., Costerton, J.W., Acres, S.D.
Electron microscopy was used to study the interaction between the glycocalyx of enterotoxigenic Escherichia coli strain 210 (09:K30+;K99-;F41-:H-) and the glycocalyx of epithelial cells in then ileum...
Detection of movements imposed on human hip, knee, ankle and toe joints.
Refshauge, K M, Chan, R, Taylor, J L, McCloskey, D I
1. The angular displacements necessary for 70% correct detection were determined in normal subjects at the hip, knee and ankle joints, and the interphalangeal joint of the big toe. Angular velocities...
Hospital formularies: need for continuous intervention.
Feely, J, Chan, R, Cocoman, L, Mulpeter, K, O'Connor, P
The effects of introducing a hospital formulary alone and with active intervention were compared prospectively with regard to drug costs and the quality of prescribing. Intervention comprised...
Endocrine modulation of the neurotoxicity of gp120: Implications for AIDS-related dementia complex
Brooke, S., Chan, R., Howard, S., Sapolsky, R.
HIV infection often involves the development of AIDS-related dementia complex, a variety of neurologic, neuropsychologic, and neuropathologic impairments. A possible contributor to AIDS-related...
Cefoperazone compared with ampicillin plus tobramycin for severe biliary tract infections.
Bergeron, M G, Mendelson, J, Harding, G K, Mandell, L, Fong, I W, Rachlis, A, ...
In a prospective, randomized, multicenter study, the efficacy and safety of cefoperazone and the combination ampicillin-tobramycin as initial therapy for patients with severe acute biliary tract...
Irvin, R T, MacAlister, T J, Chan, R, Costerton, J W
A heptose-deficient lipopolysaccharide strain of Escherichia coli O8, strain F515, was found to release portions of its outer membrane when cells were exposed to 10 mM citrate buffer (pH 2.75) for 30...
Gabbott, M, Cossart, Y E, Kan, A, Konopka, M, Chan, R, Rose, B R
This study provides the first systematic evaluation of papillomavirus type and viral mutation occurring during the course of juvenile-onset recurrent respiratory papillomatosis. One hundred...
Chan, R, Lam, J S, Lam, K, Costerton, J W
Five strains of Pseudomonas aeruginosa that are routinely distinguished by diagnostic laboratories on the basis of their colony morphology on agar media were grown in different media to assess the...
Chan, R, Acres, S D, Costerton, J W
The attachment of enterotoxigenic Escherichia coli (ETEC) strain B44 (O9:K30:K99:F41:H-) to the ileal epithelium of newborn colostrum-fed calves was studied by electron microscopy. Stabilization of...
Evaluation of lysis filtration as an adjunct to conventional blood culture.
Chan, R, Munro, R, Tomlinson, P
A lysis filtration system was used in conjunction with conventional broth culture for 1112 blood cultures. The system, which entailed collection of 5 ml of blood into bottles containing 50 ml...
Lam, J, Chan, R, Lam, K, Costerton, J W
Direct electron microscopic examination of postmortem lung material from cystic fibrosis patients infected with Pseudomonas aeruginosa has shown that these bacterial cells form distinct...
Detection of movements imposed on human hip, knee, ankle and toe joints.
Refshauge, K M, Chan, R, Taylor, J L, McCloskey, D I
1. The angular displacements necessary for 70% correct detection were determined in normal subjects at the hip, knee and ankle joints, and the interphalangeal joint of the big toe. Angular velocities...
Chan, R., Lian, C.J., Costerton, J.W., Acres, S.D.
Electron microscopy was used to study the interaction between the glycocalyx of enterotoxigenic Escherichia coli strain 210 (09:K30+;K99-;F41-:H-) and the glycocalyx of epithelial cells in then ileum...
Hospital formularies: need for continuous intervention.
Feely, J, Chan, R, Cocoman, L, Mulpeter, K, O'Connor, P
The effects of introducing a hospital formulary alone and with active intervention were compared prospectively with regard to drug costs and the quality of prescribing. Intervention comprised...
Crook, D, Collins, A J, Bacon, P A, Chan, R
Using a radiometric technique, prostaglandin synthetase activity was measured in vitro in the microsomal fraction of 19 synovial tissues taken from 17 rheumatoid arthritis patients. The enzyme was...
EAST-WEST TECHNOLOGY TRANFER UNDER BILATERAL ASYMMETRIC INFORMATION.
foreign investments ; technology transfer ; information ; economic cooperation
Prospect and Markowitz stochastic dominance
Prospect stochastic dominance, Markowitz stochastic dominance, Risk seeking, Risk averse, S-shaped utility function, Reverse S-shaped utility function, D81, C91,
Heng, B H, Goh, K T, Chan, R, Chew, S K, Doraisingham, S, Quek, G H
STUDY OBJECTIVES--To describe the prevalence of hepatitis B virus (HBV) infection in patients with sexually transmitted diseases (STD) and human immunodeficiency virus (HIV) infection, and to...
EAST-WEST TECHNOLOGY TRANFER UNDER BILATERAL ASYMMETRIC INFORMATION.
foreign investments ; technology transfer ; information ; economic cooperation
Chan, R., Hemeryck, L., O'Regan, M., Clancy, L., Feely, J.
OBJECTIVE--To see whether there is a difference in outcome between patients treated with oral and intravenous antibiotics for lower respiratory tract infection. DESIGN--Open controlled trial in...
Chant, K., Chan, R., Smith, M., Dwyer, D. E., Kirkland, P.
After an apparently new virus in the family Paramyxoviridae was isolated from pigs in August 1997, an investigation was carried out to assess its risk for humans. More than 250 persons with potential...