The Effectiveness of the Kozai Mechanism in the Galactic Centre (2008)
I examine the effectiveness of Kozai oscillations in the centres of galaxies and in particular the Galactic centre using standard techniques from celestial mechanics. In particular, I study the...
Averages of b-hadron and c-hadron Properties at the End of 2007 (2008)
Barberio, E., Bernhard, R., Blyth, S., Buchmueller, O., Cavoto, G., Chang, P., ...
This article reports world averages for measurements of b-hadron and c-hadron properties obtained by the Heavy Flavor Averaging Group (HFAG) using the results available at the end of 2007. For the...
Traboulsee, A, AL-Sabbagh, A, Bennett, R, Chang, P, Li, DKB
Abstract Background The EVIDENCE (EVidence of Interferon Dose-response: European North American Comparative Efficacy) study was an international, randomized, open-label, assessor-blinded,...
Study of B-> phi phi K Decays (2008)
We report an observation of the decay B^\pm -> \phi \phi K^\pm and evidence for B^0 -> \phi \phi K^0. These results are based on a 414 fb^{-1} data sample collected with the Belle detector at the...
Gas Shepherding by an Infalling Satellite (2008)
I calculate the action of a satellite, infalling through dynamical friction, on a coplanar gaseous disk of finite radial extent. The disk tides, raised by the infalling satellite, couple the...
Energy Resolution of the Barrel of the CMS Electromagnetic Calorimeter (2007)
Adzic, P., Alemany-Fernandez, R., Almeida, C.B., Almeida, N.M., Anagnostou, G., Anfreville, M.G., ...
The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by...
Energy Resolution of the Barrel of the CMS Electromagnetic Calorimeter (2007)
Adzic, P., Alemany-Fernandez, R., Almeida, C.B., Almeida, N.M., Anagnostou, G., Anfreville, M.G., ...
The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by...
Energy Resolution of the Barrel of the CMS Electromagnetic Calorimeter (2007)
Adzic, P., Alemany-Fernandez, R., Almeida, C.B., Almeida, N.M., Anagnostou, G., Anfreville, M.G., ...
The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by...
The Origin of the Young Stars in the Nucleus of M31 (2007)
Chang, P., Murray-Clay, R., Chiang, E., Quataert, E.
The triple nucleus of M31 consists of a population of old red stars in an eccentric disk (P1 and P2) and another population of younger A stars in a circular disk (P3) around M31's central...
Chang, P., Spitkovsky, A., Arons, J.
We study the long term evolution of magnetic fields generated by a collisionless relativistic $e^+e^-$ shock which is initially unmagnetized. Our 2D particle-in-cell numerical simulations show that...
Search for B^0-> p p-bar, Lambda Lambda-bar and B^+ -> p Lambda-bar at Belle (2007)
We report on a new search for two-body baryonic decays of the B meson. Improved sensitivity compared to previous Belle results is obtained from 414 fb^-1 of data that corresponds to 449 million B...
Energy Resolution of the Barrel of the CMS Electromagnetic Calorimeter (2007)
Adzic, P, Alemany-Fernandez, R, Almeida, C B, Almeida, N M, Anagnostou, G, Anfreville, M G, ...
The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by...
CMS physics technical design report, volume II: Physics performance (2007)
Bayatian, G. L., Chatrchyan, S., Hmayakyan, G., Sirunyan, A. M., Adam, W., Bergauer, T., ...
CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider ( LHC). It currently involves more than 2000 physicists from more than 150...
Reorientation of magnetic anisotropy in epitaxial cobalt ferrite thin films (2007)
Lisfi, A., Williams, C.M., Nguyen, L.T., Lodder, J.C., Coleman, A., Corcoran, H., ...
Spin reorientation has been observed in CoFe2O4 thin single crystalline films epitaxially grown on (100) MgO substrate upon varying the film thickness. The critical thickness for such a...
From Thin to Thick: The Impact of X-ray Irradiation on Accretion Disks in AGN (2006)
Chang, P., Quataert, E., Murray, N.
We argue that the X-ray and UV flux illuminating the parsec-scale accretion disk around luminous active galactic nuclei (AGN) is super-Eddington with respect to the local far-infrared dust opacity....
Jen, By C. -M., Chang, P., Abe, K., Abe, K., Adachi, I., Aihara, H., ...
We report improved measurements of $B$ to pseudoscalar-vector decays containing an $\omega$ meson in the final states. Our results are obtained from a data sample that contains $388\times 10^{6}$...
Improved measurements of branching fractions for B -> K pi and B -> pi pi decays (2006)
Chang, P., Collaboration, For The Belle
We report improved measurements of branching fractions for B -> K pi and B -> pi pi decays based on a data sample of 449 million B Bbar pairs collected at the Upsilon(4S) resonance with the Belle...
Observation of B Decays to Two Kaons (2006)
Chang, P., Collaboration, For The Belle
Using 449 million BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider, we observe clear signals for B^+-> \bar{K}^0 K^+ and B^0-> \bar{K}^0 K^0 decays with 5.3...
Improved Measurements of Branching Fractions and CP Asymmetries in B-> eta h Decays (2006)
Chang, P., Collaboration, For The Belle
We report improved measurements of B decays with an eta meson in the final state using 492 fb^{-1} of data collected by the Belle detector at the KEKB e^+ e^- collider. We observe the decays B^{+-}->...
Averages of b-hadron Properties at the End of 2005 (2006)
Group, Heavy Flavor Averaging, Barberio, : E., Bizjak, I., Blyth, S., Cavoto, G., Chang, P., ...
This article reports world averages for measurements on b-hadron properties obtained by the Heavy Flavor Averaging Group (HFAG) using the available results as of at the end of 2005. In the averaging,...
Climate fluctuations of tropical coupled systems — The role of ocean dynamics (2006)
Chang, P., Yamagata, T., Schopf, P., Behera, S.K., Carton, J., Kessler, W.S., ...
The tropical oceans have long been recognized as the most important region for large-scale ocean-atmosphere interactions, giving rise to coupled climate variations on several time scales. During the...
High Resolution Fe Lyman and Balmer Band Spectroscopy of the Bursts in EXO 0748-676 (2006)
Cottam, J., Paerels, F., Telis, G., Audard, M., Méndez, R.M., Boirin, L., ...
We present the results of high resolution spectroscopy of the x-ray bursts in the LMXB EXO 0748-676. Early observations with XMM/RGS showed evidence for gravitationally redshifted absorption lines,...
Results of the first performance tests * of the CMS electromagnetic calorimeter (2006)
Adzic, P., Alemany-Fernandez, R., Almeida, C. B., Almeida, N. M., Anagnostou, G., Anfreville, M. G., ...
Performance tests of some aspects of the CMS ECAL were carried out on modules of the “barrel” sub-system in 2002 and 2003. A brief test with high energy electron beams was made in late 2003 to...
Reconstruction of the signal amplitude of the CMS electromagnetic calorimeter (2006)
Adzic, P., Alemany-Fernandez, R., Almeida, C. B., Almeida, N. M., Anagnostou, G., Anfreville, M. G., ...
The amplitude of the signal collected from the PbWO4 crystals of the CMS electromagnetic calorimeter is reconstructed by a digital filtering technique. The amplitude reconstruction has been studied...
Hepatic pharmacokinetics of propranolol in rats with adjuvant-induced systemic inflammation (2006)
Hung, DY, Siebert, GA, Chang, P, Whitehouse, MW, Fletcher, L, Crawford, DHG, ...
Systemic inflammation is known to affect drug disposition in the liver. This study sought to relate and quantitate changes in hepatic pharmacokinetics of propranolol with changes in hepatic...
Results of the First Performance Tests of the CMS Electromagnetic Calorimeter (2005)
Adzic, P, Alemany-Fernandez, R, Almeida, C B, Almeida, N M, Anagnostou, G, Anfreville, M G, ...
Performance tests of some aspects of the CMS ECAL were carried out on modules of the "barrel" sub-system in 2002 and 2003. A brief test with high energy electron beams was made in late 2003 to...
Rotational Broadening of Atomic Spectral Features from Neutron Stars (2005)
Chang, P., Morsink, S., Bildsten, L., Wasserman, I.
The discovery of the first gravitationally redshifted spectral line from a neutron star (NS) by Cottam, Paerels and Mendez has triggered theoretical studies of the physics of atomic line formation in...
Formation of Resonant Atomic Lines during Thermonuclear Flashes on Neutron Stars (2005)
Chang, P., Bildsten, L., Wasserman, I.
Motivated by the measurement of redshifted Fe H$\alpha$ lines during type I X-ray bursts on EXO 0748-676 (Cottam, Paerels & Mendez), we study the formation of atomic Fe lines above the photosphere of...
Sandberg-Wollheim, M, Bever, C, Carter, J, Färkkilä, M, Hurwitz, B, Lapierre, Y, ...
Abstract is not available
Sandberg-Wollheim, M, Frank, D, Goodwin, T M, Giesser, B, Lopez-Bresnahan, M, Stam-Moraga, M, ...
Abstract is not available
Results of the first performance tests of the CMS electromagnetic calorimeter (2005)
Adzic, P., Alemany-Fernandez, R., B. Almeida, C., M. Almeida, N., Anagnostou, G., G. Anfreville, M., ...
Performance tests of some aspects of the CMS ECAL were carried out on modules of the "barrel" sub-system in 2002 and 2003. A brief test with high energy electron beams was made in late 2003 to...
Results of the first performance tests of the CMS electromagnetic calorimeter (2005)
Adzic, P., Alemany-Fernandez, R., B. Almeida, C., M. Almeida, N., Anagnostou, G., G. Anfreville, M., ...
Performance tests of some aspects of the CMS ECAL were carried out on modules of the "barrel" sub-system in 2002 and 2003. A brief test with high energy electron beams was made in late 2003 to...
Analysis and contribution of stress anisotropy in epitaxial hard ferrite thin films (2005)
Lisfi, A., Nguyen, L.T., Lodder, J.C., Williams, C.M., Corcoran, H., Chang, P., ...
Spin reorientation in single-crystal CoFe2 O4 thin films (2005)
Lisfi, A., Williams, C.M., Johnson, E., Nguyen, L.T., Lodder, J.C., Corcoran, H., ...
Chang, P, Hung, DY, Siebert, GA, Bridle, K, Roberts, MS
The effects of a Chinese snake venom preparation from Agkistrodon halys pallas, used for treatment of hepatic fibrosis/cirrhosis in China, was investigated in an {in vivo} rat model and using in situ...
Hepatic pharmacokinetics of taurocholate in the normal and cholestatic rat liver (2005)
Hung, DY, Siebert, GA, Chang, P, Roberts, MS
1 The disposition kinetics of [H-3] taurocholate ([H-3]TC) in perfused normal and cholestatic rat livers were studied using the multiple indicator dilution technique and several physiologically based...
Hung, DY, Siebert, GA, Chang, P, Burczynski, FJ, Roberts, MS
Nonalcoholic fatty liver disease is the most common of all liver diseases. The hepatic disposition [H-3]palmitate and its low-molecular-weight metabolites in perfused normal and steatotic rat liver...
Burczynski, FJ, Hung, D, Wang, GQ, Elmadhoun, B, Lewis, A, Chang, P, ...
Understanding the driving forces for the hepatic uptake of endogenous and exogenous substrates in isolated cells and organs is fundamental to describing the underlying hepatic...
Hydrogen Burning on Magnetar Surfaces (2004)
Chang, P., Arras, P., Bildsten, L.
We compute the rate of diffusive nuclear burning for hydrogen on the surface of a "magnetar" (Soft Gamma-Ray Repeater or Anomalous X-Ray Pulsar). We find that hydrogen at the photosphere will be...
A preliminary survey of radio-frequency interference over the U.S. in Aqua AMSR-E data (2004)
Li, L., Njoku, E., Im, E., Chang, P., Germain, K. St.
A spectral difference method is used to quantify the magnitude and extent of radio-frequency interference (RFI) observed over the U.S. in the Aqua AMSR-E radiometer channels.
Erbas, B, Chang, P, Kavanagh, AM, Gertig, DM
No abstract available.
Improved Measurements of Partial Rate Asymmetry in B -> h h Decays (2004)
Chao, Y., Chang, P., Collaboration, For The Belle
We report improved measurements of the partial rate asymmetry (Acp) in B -> h h decays with 140fb^-1 of data collected with the Belle detector at the KEKB e+e- collider. Here h stands for a charged...
Observation of the Decays B0->K+pi-pi0 and B0->rho-K+ (2004)
Chang, P., Collaboration, For The Belle
We report the observation of B^0 decays to the K^+pi^-pi^0 final state using a data sample of 78 fb^-1 collected by the Belle detector at the KEKB e^+e^- collider. With no assumptions about...
Chandra High Resolution Spectroscopy of the Burst Spectrum of EXO 0748-67 (2004)
Telis, G., Paerels, F., Audard, M., Lanz, T., Cottam, J., Mendez, R.M., ...
We have observed EXO0748-67 for approximately 300 ksec with the High Energy Transmission Grating Spectrometer on Chandra. A total of 35 Type I X-ray bursts occurred during our observation, and from...
Disposition kinetics of propranolol isomers in the perfused rat liver (2004)
Hung, DY, Siebert, GA, Chang, P, Anissimov, YG, Roberts, MS
The aim of this study was to define the determinants of the linear hepatic disposition kinetics of propranolol optical isomers using a perfused rat liver. Monensin was used to abolish the lysosomal...
Siebert, GA, Hung, DY, Chang, P, Roberts, MS
This study investigated the relative contribution of ion-trapping, microsomal binding, and distribution of unbound drug as determinants in the hepatic retention of basic drugs in the isolated...
Evolution of Young Neutron Star Envelopes (2003)
We extend our initial study of diffusive nuclear burning (DNB) for neutron stars (NSs) with Hydrogen atmospheres and an underlying layer of proton capturing nuclei. Our initial study showed that DNB...
Tunicate feeding filters (2003)
Bone, Q., Carre, C., Chang, P.
This review discusses the structure and operation of the fine mesh ‘mucous’ feeding filters of tunicates. The function of the endostyle in producing the feeding filter and the different ways in...
Atomic Spectral Features During Thermonuclear Flashes on Neutron Stars (2003)
Bildsten, L., Chang, P., Paerels, F.
The gravitational redshift measured by Cottam, Paerels and Mendez for the neutron star (NS) in the low-mass X-ray binary EXO 0748-676 depends on the identification of an absorption line during a type...
Fletcher, L, Bridle, K, Murphy, T, Walters, M, Hung, D, Chang, P, ...
Hung, DY, Burczynski, FJ, Chang, P, Lewis, A, Masci, PP, Siebert, GA, ...
Disposition kinetics of [H-3] palmitate and its low-molecular-weight metabolites in perfused rat livers were studied using the multiple-indicator dilution technique, a selective assay for [H-3]...
Diffusive Nuclear Burning in Neutron Star Envelopes (2002)
We present a new mode of hydrogen burning on neutron stars (NSs) called diffusive nuclear burning (DNB). In DNB, the burning occurs in the exponentially suppressed tail of hydrogen that extends to...
Diffusive Nuclear Burning on Neutron Star Envelopes (2002)
We calculate the rate of hydrogen burning for neutron stars (NSs) with hydrogen atmospheres and an underlying reservoir of nuclei capable of proton capture. This burning occurs in the exponentially...
Experiments with Driving Modes for Urban Robots (2002)
M. Hebert, R. Maclachlan, P. Chang
In this paper, we describe experiments on semi-autonomous control of a small urban robot. Three driving modes allow semiautonomous control of the robot through video imagery, or by using partial maps...
Randomized, comparative study of interferon ß-1a treatment regimes in MS: The EVIDENCE Trial. (2002)
Panitch,H., Goodin,D. S., Francis,G., Chang,P., Coyle,P. K., O´Connor,P., ...
Randomized, comparative study of interferon ß-1a treatment regimes in MS: The EVIDENCE Trial. (2002)
Panitch, H., Goodin, D. S., Francis, G., Chang, P., Coyle, P. K., O´Connor, P., ...
Hung, DY, Chang, P, Cheung, K, Winterford, C, Roberts, MS
Four animal models were used to quantitatively evaluate hepatic alterations in this study: (1) a carbon tetrachloride control group (phenobarbital treatment only), (2) a CCl4-treated group...
Hung, D. Y., Chang, P., Cheung, K., McWhinney, B., Masci, P. P., Weiss, M., ...
The disposition kinetics of six cationic drugs in perfused diseased and normal rat livers were determined by multiple indicator dilution and related to the drug physicochemical properties and liver...
Hung, D. Y., Chang, P., Weiss, M., Roberts, M. S.
This work studied the structure-hepatic disposition relationships for cationic drugs of varying lipophilicity using a single-pass, in situ rat liver preparation. The lipophilicity among the cationic...
CMS : the TriDAS Project Technical Design Report; v.1, the Trigger Systems (2000)
L. Bayatyan, G., Grigorian, N., G. Khachatrian, V., T. Margarian, A., M. Sirunyan, A., Adam, W., ...
CMS : the TriDAS Project Technical Design Report; v.1, the Trigger Systems (2000)
L. Bayatyan, G., Grigorian, N., G. Khachatrian, V., T. Margarian, A., M. Sirunyan, A., Adam, W., ...
A Study of Library Retrieval and Student Data Base Systems, (1998)
A description is given of all of the major known data base systems at UCLA in the areas of student records and library retrieval systems - included are some experimental systems as well as those in...
Semiclassical Corrections for Inelastic Atom-Surface Scattering from Classical Trajectories. (1998)
Kohn, W., Jensen, J. H., Chang, P.
Consider an atom scattered inelastically from a surface and derive a formula for the exact semiclassical limit of the expectation value of an arbitrary, smooth function of the scattered atom's final...