bluuebunny/crossref_metadata_2025_split huggingface dataset:
3D Video Recorder: a System for Recording and Playing Free‐Viewpoint Video†
Authors: Würmlin Stephan , Lamboray Edouard , Staadt Oliver G. , Gross Markus H. 
Published: July 2003

Abstract We present the 3D Video Recorder, a system capable of recording, processing, and playing three‐dimensional video from multiple points of view. We first record 2D video streams from several synchronized digital video cameras and store pre‐processed images to disk. An off‐line processing stage converts these images into a time‐varying 3D hierarchical point‐based data structure and stores this 3D video to disk. We show how we can trade‐off 3D video quality with processing performance and devise efficient compression and coding schemes for our novel 3D video representation. A typical sequence is encoded at less than 7 Mbps at a frame rate of 8.5 frames per second. The 3D video player decodes and renders 3D videos from hard‐disk in real‐time, providing interaction features known from common video cassette recorders, like variable‐speed forward and reverse, and slow motion. 3D video playback can be enhanced with novel 3D video effects such as freeze‐and‐rotate and arbitrary scaling. The player builds upon point‐based rendering techniques and is thus capable of rendering high‐quality images in real‐time. Finally, we demonstrate the 3D Video Recorder on multiple real‐life video sequences. ACM CSS: I.3.2 Computer Graphics—Graphics Systems, I.3.5 Computer Graphics—Computational Geometry and Object Modelling, I.3.7 Computer Graphics—Three‐Dimensional Graphics and Realism
Interactive Rendering of Translucent Objects†
Authors: Lensch Hendrik P.A. , Goesele Michael , Bekaert Philippe , Kautz Jan , Magnor Marcus A. , Lang Jochen , Seidel Hans‐Peter 
Published: July 2003

Abstract This paper presents a rendering method for translucent objects, in which viewpoint and illumination can be modified at interactive rates. In a preprocessing step, the impulse response to incoming light impinging at each surface point is computed and stored in two different ways: The local effect on close‐by surface points is modeled as a per‐texel filter kernel that is applied to a texture map representing the incident illumination. The global response (i.e. light shining through the object) is stored as vertex‐to‐vertex throughput factors for the triangle mesh of the object. During rendering, the illumination map for the object is computed according to the current lighting situation and then filtered by the precomputed kernels. The illumination map is also used to derive the incident illumination on the vertices which is distributed via the vertex‐to‐vertex throughput factors to the other vertices. The final image is obtained by combining the local and global response. We demonstrate the performance of our method for several models. ACM CSS:I.3.7 Computer Graphics—Three‐Dimensional Graphics and Realism Color Radiosity
Real‐Time Consensus‐Based Scene Reconstruction Using Commodity Graphics Hardware†
Authors: Yang Ruigang , Welch Greg , Bishop Gary 
Published: July 2003

Abstract We present a novel use of commodity graphics hardware that effectively combines a plane‐sweeping algorithm with view synthesis for real‐time, online 3D scene acquisition and view synthesis. Using real‐time imagery from a few calibrated cameras, our method can generate new images from nearby viewpoints, estimate a dense depth map from the current viewpoint, or create a textured triangular mesh. We can do each of these without any prior geometric information or requiring any user interaction, in real time and online. The heart of our method is to use programmable Pixel Shader technology to square intensity differences between reference image pixels, and then to choose final colors (or depths) that correspond to the minimum difference, i.e. the most consistent color. In this paper we describe the method, place it in the context of related work in computer graphics and computer vision, and present some results. ACM CSS: I.3.3 Computer Graphics—Bitmap and framebuffer operations, I.4.8 Image Processing and Computer Vision—Depth cues, Stereo
Characterization of Y2-Equivalence for Homology Cylinders
Authors: Massuyeau Gwénaël , Meilhan Jean-Baptiste 
Published: July 2003

For Σ a compact connected oriented surface, we consider homology cylinders over Σ: these are homology cobordisms with an extra homological triviality condition. When considered up to Y2-equivalence, which is a surgery equivalence relation arising from the Goussarov-Habiro theory, homology cylinders form an Abelian group. In this paper, when Σ has one or zero boundary component, we define a surgery map from a certain space of graphs to this group. This map is shown to be an isomorphism, with inverse given by some extensions of the first Johnson homomorphism and Birman-Craggs homomorphisms.
Study of Oxygen on the Three Low Index Diamond Surfaces by XPS
Authors: Makau N. W. , Derry T. E. 
Published: July 2003

Nominally clean diamond surfaces have been shown to contain adsorbed foreign atoms on them. Some of the adsorbed atoms have also been known to lead to various surface modifications, a phenomenon that is important in diamond electronics. Establishing the identity and nature of the adsorbed atoms on these surfaces is therefore key to the successful application of diamond in various technological fields. In this work, X-ray photoelectron spectrometry (XPS) has been used to investigate the three low index diamond surfaces. The results show oxygen as the main foreign atom on these surfaces other than hydrogen, with varying fractions of oxygen monolayer coverage being observed. It is further established that the adsorbed oxygen exists in several bonding configurations, with the energy shifts associated with the various functional groups being determined.
Immune reconstitution to cytomegalovirus after allogeneic hematopoietic stem cell transplantation: impact of host factors, drug therapy, and subclinical reactivation
Authors: Hakki Morgan , Riddell Stanley R. , Storek Jan , Carter Rachel A. , Stevens-Ayers Terry , Sudour Patrick , White Kristen , Corey Lawrence , Boeckh Michael 
Published: July 2003

Abstract
Reconstitution of cellular immunity by 3 months after hematopoietic stem cell transplantation (HSCT) is a critical determinant of the long-term success of the transplantation. We analyzed the factors affecting recovery of cytomegalovirus (CMV)–specific CD4+ and CD8+ function at 3 months after HSCT by univariate and multivariable analyses including source of stem cells (bone marrow vs peripheral blood stem cells [PBSCs]), age, sex, graft-versus-host disease (GVHD), steroid use, conditioning regimens, ganciclovir use, HLA matching, circulating CMV antigenemia, absolute CD4+ and CD8+ counts, and donor CMV serology. High-dose steroids and CD4+ count less than 100 × 109/L were significant predictors of impaired CD4+ functional recovery in the multivariable analysis. High-dose steroids, bone marrow as a source of stem cells, and CD8+ count less than 50 × 109/L were associated with impaired CD8+ function in the multivariable analysis. Steroids were found to impair both CD4+ and CD8+ function in a dose-dependent manner. In the absence of high-dose steroids, low-level subclinical CMV antigenemia was found to stimulate both CD4+ and CD8+ functional recovery in recipients of ganciclovir prophylaxis. There was no difference in immune reconstitution between those who received prophylactic ganciclovir versus antigenemia-guided pre-emptive therapy. Thus, absolute CD4+ and CD8+ counts less than 100 × 109/L and 50 × 109/L, respectively; bone marrow as the source of stem cells; and high-dose steroid use all predict delayed recovery of functional T-cell immunity at 3 months after transplantation. Subclinical CMV reactivation while on ganciclovir appears to be a potent stimulator of T-cell function. These findings have implications for vaccination and adoptive-immunotherapy strategies in this population.
Hematopoietic stem cell transplantation for progressive multiple sclerosis: failure of a total body irradiation–based conditioning regimen to prevent disease progression in patients with high disability scores
Authors: Burt Richard K. , Cohen Bruce A. , Russell Eric , Spero Kenneth , Joshi Akash , Oyama Yu , Karpus William J. , Luo Kehuan , Jovanovic Borko , Traynor Ann , Karlin Karyn , Stefoski Dusan , Burns William H. 
Published: July 2003

Abstract
There were 21 patients with rapidly progressive multiple sclerosis (MS) treated on a phase 1/2 study of intense immune suppressive therapy and autologous hematopoietic stem cell (HSC) support with no 1-year mortality. Following transplantation, one patient had a confirmed acute attack of MS. Neurologic progression defined by the expanded disability status scale (EDSS) did not increase in disability by 1.0 or more steps in any of 9 patients with a pretransplantation EDSS of 6.0 or less. In 8 of 12 patients with high pretransplantation disability scores (EDSS &gt; 6.0), progressive neurologic disability as defined by at least a 1-point increase in the EDSS has occurred and was manifested as gradual neurologic deterioration. There were 2 patients with a pretransplantation EDSS of 7.0 and 8.0 who died from complications of progressive disease at 13 and 18 months following treatment. Our experience suggests that intense immune suppression using a total body irradiation (TBI)-based regimen and hematopoietic stem cell transplantation (HSCT) are not effective for patients with progressive disease and high pretransplantation disability scores. Further studies are necessary to determine the role of intense immune suppressive therapy and HSC support in ambulatory patients with less accumulated disability and more inflammatory disease activity. Specifically, more patients and longer follow-up would be required in patients with an EDSS of 6.0 or less before drawing conclusions on this subgroup. (Blood. 2003;102:2373-2378)
Rituximab therapy for HIV-associated Castleman disease
Authors: Marcelin Anne-Geneviève , Aaron Laurent , Mateus Christine , Gyan Emmanuel , Gorin Isabelle , Viard Jean-Paul , Calvez Vincent , Dupin Nicolas 
Published: July 2003

Abstract
To assess the clinical benefit of rituximab for HIV-associated Castleman disease, 5 patients infected with HIV with histologic-proven Castleman disease were prospectively enrolled to receive 4 infusions of rituximab. Clinical and biologic parameters (C-reactive protein, CD19 cell count, Kaposi sarcoma–associated herpesvirus [KSHV] viral load in peripheral blood mononuclear cells) were assessed before and at different time points following rituximab infusions. Two patients died very quickly after the beginning of rituximab therapy with no effect on both KSHV viral load and CD19 cell count. Three of 5 patients were considered in complete remission with no more clinical symptoms related to Castleman disease with a follow-up of 4 to 14 months. In 2 cases, clinical remission correlated with a dramatic decrease of KSHV viral load and C-reactive protein levels and a transitory but sharp decrease of CD19 cell count. In 2 responders, we observed an aggravation of Kaposi sarcoma. Our preliminary results suggest that rituximab may be effective in controlling Castleman disease in a subset of patients, although it may exacerbate concomitant Kaposi sarcoma.
Effect of circulating blasts at time of complete remission on subsequent relapse-free survival time in newly diagnosed AML
Authors: Estey Elihu H. , Thall Peter F. , Wang Xuemei , Verstovsek Srdan , Cortes Jorge , Kantarjian Hagop M. 
Published: July 2003

Abstract
Standardized criteria for complete remission (CR) in acute myeloblastic leukemia (AML) require the absence of peripheral blood blasts (PBBs). However, MD Anderson (MDA) criteria for CR (CR-MDA), although including the other requirements for CR, have not included the PBB count. We exploit this difference to assess the effect of PBBs at the time of CR-MDA on relapse-free survival (RFS) time. Eighty percent of the 533 patients with newly diagnosed AML or refractory anemia with excess of blasts (RAEB) entering CR-MDA from 1995 to 2000 had no PBBs at time of CR-MDA. Ninety-three percent of the remaining patients, who thus had CR-MDA but not standard CR, had 1% to 5% PBBs at this time. Multivariate analyses, using both conventional and Bayesian approaches, indicated that PBBs had no effect on RFS. For all patients and for the subgroups given and not given granulocyte colony-stimulating factor (G-CSF), the 95% credible interval for the relative risk of failure in the PBB group was nearly centered at 1.0. Thus, our data do not support use of PBBs in defining CR in newly diagnosed AML.
Eco-friendly and Highly Chemoselective 1,3-Oxathio- and 1,3-Dithioacetalization of Aldehydes Using Ionic Liquids
Authors: Yadav J S , Reddy B V S , Kondaji G 
Published: July 2003

Abstract
Room temperature ionic liquids have been employed for the first time as novel and recyclable reaction media for the chemoselective conversion of aldehydes into their corresponding 1,3-oxathio- and dithioacetal derivatives in excellent yields under mild and neutral conditions. A wide range of functional and protecting groups such as TBDMS, PMB, THP, MOM, benzyl, propargyl ethers, acetonides, carbamates and esters are survived under these reaction conditions. The recovered activated ionic liquids can be recycled for four to five subsequent runs with consistency in activity.
Synthesis of Novel Carbazole Dendrimers Having a Metal Coordination Site
Authors: Kimoto Atsushi , Cho Jun-Sang , Higuchi Masayoshi , Yamamoto Kimihisa 
Published: July 2003

Abstract
We have synthesized novel carbazole dendrimers via cyclotrimerization. This synthetic procedure to prepare the dendrimers, especially with a higher generation, via the cyclization reaction was found to be an extremely effective method. These dendrimers have the ability to assemble metal ions such as Sn2+ and Eu3+, resulting in a change in its fluorescence property.
New One-pot Cross-coupling Reaction between Grignard Reagents and Alkoxymethyldiphenylphosphonium Iodides in situ-Formed from Alcohols, Chlorodiphenylphosphine and Iodomethane
Authors: Shintou Taichi , Kikuchi Wataru , Mukaiyama Teruaki 
Published: July 2003

Abstract
A new one-pot cross-coupling reaction between Grignard reagents and alkoxymethyldiphenylphosphonium iodides, which were in situ-formed from nBuLi-treated alcohols, chlorodiphenylphosphine and iodomethane, proceeded smoothly to afford the corresponding coupling products in good to high yields.
A Remarkable Isotope Effect on the Photochromism of trans-Biindenylidenedione in the Solid State
Authors: Tanaka Koichi , Yamamoto Yohei , Takano Hideyuki , Caira Mino R 
Published: July 2003

Abstract
A remarkable deuterium isotope effect on the photochromism of 3,3′-diaryl-3H,3′H-[2,2′]biindenylidene-1,1′-dione (2) in the solid state has been found. The yellow crystals of 2 and 2-d2 were immediately changed to reddish purple crystals upon photoirradiation in the solid state. The reddish purple crystals of 2-d2 returned back to the original yellow crystals under dark for 72 h, whereas that of 2 faded within 2 h.
Preparation and Characterization of 6-Carboxychitosan
Authors: Zhou Yongguo , Yang Yuedong , Wang Dongjun , Liu Xiaomin 
Published: July 2003

Abstract
The hydroxymethyl group of 2-amino-2-deoxy-d-glucose unit in chitosan was selectively oxidized to carboxyl group with NO2 to form amphoteric chitosan by one step so as to give chitosan a new bioactivity. The structure and properties of amphoteric chitosan are discussed.
Detection of A/G Single Nucleotide Alteration in RNA Using Base-discriminating Fluorescent Oligodeoxynucleotides
Authors: Okamoto Akimitsu , Tainaka Kazuki , Saito Isao 
Published: July 2003

Abstract
We report the fluorescence properties of oligodeoxynucleotides (ODNs) containing a base-discriminating fluorescent nucleoside, benzopyridopyrimidine (BPP), in hybridizing with RNAs possessing different bases opposite BPP. BPP-containing ODN selectively exhibited a strong fluorescence when the RNA base opposite BPP was A, whereas the fluorescence of BPP-containing ODN hybridized with RNA possessing G opposite BPP was very weak. BPP acts as a good base-discriminating fluorescent nucleoside for A/G single base alteration of RNA.
Nanosilver Fabrication under the Control of Ligands Containing Pyridyl Group in Solution Phase with Photoreduction Method
Authors: Xie Zhen , Wang Zhiyong , Ke Yanxiong , Zha Zhenggen , Jiang Chao 
Published: July 2003

Abstract
Nanosilver was prepared by photoreduction method and the size and shape of the nanosilver can be easilly controlled by changing the organic capping reagent such as pyridine, nicotinic acid, 2,2′-dipyridylamine and 2,2′-bipyridine. Using different capping reagents, different shapes of nanosilvers, such as nanoribbon, nanotriangle or nanowire, can be obtained under mild condition.
Magnetic Composite Nanoparticle of Au/γ-Fe2O3 Synthesized by Gamma-Ray Irradiation
Authors: Seino Satoshi , Kinoshita Takuya , Otome Yohei , Okitsu Kenji , Nakagawa Takashi , Yamamoto Takao A 
Published: July 2003

Abstract
Magnetic composite nanoparticle of Au/γ-Fe2O3 was synthesized in an aqueous phase using gamma-ray. Connection between gold and γ-Fe2O3 was confirmed by the magnetic separation technique. TEM observation shows that 5-nm gold particles were dispersed on 20-nm γ-Fe2O3 particles. The nanoparticles adsorbed a water-soluble mercaptan, glutathione, and was manipulated by an external magnetic field.
Self-assembled Dendrimer-bound Pd(II) Complexes via Acid-base Interactions and their Catalysis for Allylic Amination
Authors: Ooe Masahiko , Murata Makoto , Takahama Atsushi , Mizugaki Tomoo , Ebitani Kohki , Kaneda Kiyotomi 
Published: July 2003

Abstract
The Pd complexes were noncovalently attached on the periphery of poly(propyleneimine) dendrimers based on acid-base interactions. The dendritic Pd complexes were found to possess catalytic activities for allylic amination, and to be able to mimick the catalytic activity of the analogous monomeric Pd complex catalyst.
Systematic Synthesis of Porphyrin Dimers Linked by Conjugated Oligoacetylene Bridges
Authors: Nakamura Kazuya , Fujimoto Tatsuhiko , Takara Satoshi , Sugiura Ken-ichi , Miyasaka Hitoshi , Ishii Tomohiko , Yamashita Masahiro , Sakata Yoshiteru 
Published: July 2003

Abstract
A series of α,ω-bis(meso-porphyrinyl)oligoacetylenes were systematically prepared. The exciton interaction between the porphyrins gradually decreased with increasing number of acetylenes, whereas the interaction between the porphyrin and the oligoacetylene unit appeared.
Lithium Acetate Catalyzed Aldol Reaction between Aldehyde and Trimethylsilyl Enolate in a Dimethylformamide–H2O Solvent
Authors: Nakagawa Takashi , Fujisawa Hidehiko , Mukaiyama Teruaki 
Published: July 2003

Abstract
Lithium acetate catalyzed aldol reaction between trimethylsilyl enolates and aldehydes in a DMF–H2O (50:1) solvent proceeded smoothly to afford the corresponding aldols in good to high yields. It is noted that trimethylsilyl enolates derived from carboxylic esters behaved as excellent nucleophiles in the above reaction.
Construction of 2D Superlattices of Gold Nanoparticles at an Air/Water Interface Based on Hydrogen-Bonding Networks
Authors: Yao Hiroshi , Kojima Hiroyuki , Sato Seiichi , Kimura Keisaku 
Published: July 2003

Abstract
Two-dimensional (2D) superlattices of mercaptosuccinic acid-modified gold nanoparticles were constructed at an air/water interface in the presence of 4-pyridinecarboxylic acid (PyC). Hydrogen-bonding interaction caused the incorporation of PyC into the surface-functionalized gold nanoparticles, suggesting that the interparticle spacing in the superlattices is controllable with an intercalating molecule.
Determination of Fundamental Harmonic-to-secondary Harmonic Ratio of Longitudinal Magnetization Change in Triarylmethyl or Nitroxide Radical Aqueous Solution Caused by ESR at 280 MHz for Nondestructive Oximetry
Authors: Yokoyama Hidekatsu , Sato Toshiyuki , Fukui Kouichi , Itoh Osamu , Ohya Hiroaki , Akatsuka Takao 
Published: July 2003

Abstract
In a longitudinally detected ESR (LODESR) method, longitudinal (i.e., parallel to the static magnetic field) magnetization changes caused by on/off modulated ESR irradiation are observed. In this study, LODESR oximetry was newly designed so that a detection frequency was fixed and on/off modulation frequencies were varied. LODESR signal intensities when the modulation frequency was equal to the detecting frequency (fundamental harmonic detection) and when it was half the value of the detection frequency (secondary harmonic detection) were simulated at a constant detection frequency. Fundamental harmonic-to-secondary harmonic ratios (FSRs) were calculated by dividing the former by the latter. This simulation showed that FSR increased with the reciprocal of longitudinal relaxation time. LODESR measurements of phantoms containing triarylmethyl or a nitroxide radical that had been dissolved in 10 cm3 of a physiological saline solution and various concentrations of oxygen were made at an ESR frequency of 280 MHz. It was found that the FSRs of both phantoms increased as the concentration of oxygen increased.
Inorganic Luminescent Materials: 100 Years of Research and Application
Authors: Feldmann C. , Jüstel T. , Ronda C.R. , Schmidt P.J. 
Published: July 2003

AbstractUp until approximately 80 years ago, only black‐body radiation (including natural sources) was available to illuminate our environment. To realise state‐of‐the‐art lamps, TV sets, monitors, and medical scanners, took an enormous scientific and technical effort. Inorganic luminescent materials are key components, which were, are, and will be prerequisite to the functionality and success of many lighting and display systems. In this Highlight, a hundred years of inorganic luminescent material research are reviewed.
Liquid‐Crystalline Phase Behavior in a Zwitterionic Tetraazapentacene
Authors: Riley A.E. , Mitchell G.W. , Koutentis P.A. , Bendikov M. , Kaszynki P. , Wudl F. , Tolbert S.H. 
Published: July 2003

AbstractA 5,7‐dioctadecylquinoxalinophenazine zwitterion 1 has been investigated to determine its thermal phase behavior. A combination of differential scanning calorimetry (DSC), variable temperature low‐ and high‐angle X‐ray diffraction (XRD), and deuterium solid‐state NMR spectroscopy were used to characterize the different phases of the tetraazapentacene 1. This molecule is found to exist in a variety of crystalline solid phases between room temperature and 167 °C, with different room‐temperature phases resulting from crystallization from solution compared with cooling from the melt. Interestingly, the molecule exhibits liquid‐crystalline behavior at high temperatures, between 167 °C and 186 °C, above which it becomes an isotropic fluid. The presence of liquid‐crystalline behavior in a zwitterionic system opens up the potential for the use of these or related molecules in optoelectronic switching.