bluuebunny/crossref_metadata_2025_split huggingface dataset:
Oscillatory Circulation of Copper Particles during Silver-Displacement Plating in a High Magnetic Field
Authors: Yonemochi Shin-ichi , Aogaki Ryoichi 
Published: December 2003

Abstract
Motion of copper particles during silver-displacement plating in a high magnetic field was investigated. Immediately after injecting a silver nitrate solution to a vessel filled with copper powder and suspending the powder in the solution, the particles start to circulate along a vessel under a vertical magnetic field with suddenly changing their directions. The velocity of the motion increased with the magnetic field strength though the deposition rate remained constant.
Synthesis of Silica-pillared Microporous Manganese Oxide
Authors: Liu Zong-huai , Ooi Kenta , Kanoh Hirofumi , Tang Weiping , Tomida Tahei 
Published: December 2003

Abstract
Silica-pillared layered manganese oxides with high surface area and high thermal stability have been synthesized for the first time by the two step intercalation of octylamine followed by tetraethylorthosilicate into birnessite type manganese oxide.
Low Thermal Conductivities of Undoped and Various Protonic Acid-Doped Polyaniline Films
Authors: Yan Hu , Ohno Naonori , Toshima Naoki 
Published: December 2003

Abstract
Thermal conductivities of undoped and various protonic acid-doped polyaniline films were measured by combination of a laser flash method and a scanning differential calorimeter. The thermal conductivities thus measured are in the range of conventional organic polymers, indicating that the doped polyaniline films have extremely low thermal conductivities among electrically conductive materials.
Fabrication of Two-Dimensional J-Aggregates on Au(111) Covered with Self-Assembled Cysteamine Monolayer
Authors: Sato Tomoo , Yamamoto Akihiro , Kawasaki Mitsuo 
Published: December 2003

Abstract
A simple and useful new method to fabricate high-quality 2D J-aggregates of anionic cyanine dyes on a solid surface has been established by using an Au(111) covered with cysteamine self-assembled monolayer. It was also found that this method allows easy control of dye aggregation ranging from a 2D crystalline J-aggregate to a high density of dye monomers without aggregation.
Preparation of Supported Gold Catalysts by Liquid-Phase Grafting of Gold Acethylacetonate for Low-Temperature Oxidation of CO and of H2
Authors: Okumura Mitsutaka , Haruta Masatake 
Published: December 2003

Abstract
Gold nanoparticles can be deposited on several metal oxides by liquid phase grafting (LG) of dimethyl gold acetylacetonate. They exhibit high catalytic activities for the oxidation of CO and of H2 at low temperatures, below and above 273 K, respectively.
Generation, Direct Observation and Kinetics of Triplet (2,4,6-Triisopropylphenyl)phenylcarbene
Authors: Hirai Katsuyuki , Yasuda Kentaro , Tomioka Hideo 
Published: December 2003

Abstract
The title carbene (2a) was generated and studied not only by product analysis but also by spectroscopic means. The results are compared with those observed for the corresponding tert-butyl analogue (2b), which revealed intriguing and unique natures required for kinetic protectors of triplet carbene.
Reduction of Sulfoxides to Sulfides Mediated by Ferrocene and Trifluoroacetic Anhydride
Authors: Kobayashi Kenji , Kubota Yasuo , Furukawa Naomichi 
Published: December 2003

Abstract
The reaction of diaryl sulfoxides with trifluoroacetic anhydride in the presence of ferrocene gives the corresponding sulfide. The reduction of sulfoxides composed of the ferrocene-spacer-methylsulfinyl triad system would proceed via a through-bond electron transfer rather than a through-space process.
Highly-Soluble Fluorocarbon Surfactant in Supercritical Carbon Dioxide: Effect of Counter Cation on Solubility
Authors: Kawakami Takanori , Saito Norio , Ikushima Yutaka , Liew Chee Chin , Aiba Keizo , Ohkawa Tadashi 
Published: December 2003

Abstract
We have developed a new series of branch-structured anionic surfactants dissolved significantly well in sc-CO2. We found that, the variation of counter ion species has a significant effect on the solubility of the surfactants in sc-CO2. Among these, the solubility of surfactant with ammonium ion exceeded 16 wt% at 40 °C and 15 Mpa, while that of surfactant with K+ was neglectable. This effect can be used for complete recovery of the surfactant.
A Novel Surface Modification of SnO2-Based CO Gas Sensors to Improve Temperature and Humidity Dependence
Authors: Morimitsu Masatsugu , Ozaki Yasutaka , Suzuki Sachiyo , Matsunaga Morio 
Published: December 2003

Abstract
A significant improvement in temperature and humidity dependence of SnO2-based CO gas sensors has been achieved by a novel surface modification with sulfuric acid, thiourea, ruthenium, and rhodium.
Electrical Properties of an Organic Conductor, β′- (BEDT-TTF)2ICl2 up to 10 Gpa
Authors: Adachi Takafumi , Ojima Emiko , Narymbetov Bakhyt Zh , Kobayashi Hayao , Miyazaki Takafumi , Tokumoto Madoka 
Published: December 2003

Abstract
Four-probe resistivity measurements were made on an organic semiconductor, β′-(BEDT-TTF)2ICl2 up to 10 Gpa by using a diamond anvil high-pressure cell. The activation energy was decreased with increasing pressure and the metallic phase appeared around 8 Gpa. When the pressure was kept around 10 Gpa, the resistivity was gradually increased with time, indicating an irreversible pressure-induced solid state transformation.
Photoluminescence Properties of Mo-MCM-41 Mesoporous Molecular Sieves and Their Photocatalytic Reactivity for the Decomposition of NOx
Authors: Higashimoto Shinya , Tsumura Rie , Zhang Shu Guo , Matsuoka Masaya , Yamashita Hiromi , Louis Catherine , Che Michel , Anpo Masakazu 
Published: December 2003

Abstract
Investigations of the mesoporous Mo-MCM-41 molecular sieves have shown that they include the tetrahedrally coordinated Mo-oxide species, which exhibits a photoluminescence spectrum attributed to the radiative decay from the charge transfer excited state. Also, the photocatalytic reaction of NO into N2 was found to proceed much more efficiently in the presence of propane than in the absence of propane. The dynamic quenching of the photoluminescence spectrum by the addition of NO or propane indicates that the excited state of the highly dispersed Mo-oxide species having a tetrahedral coordination plays a significant role in this reaction.
Synthesis and Spectroscopic Characterization of a Dawson Trivanadium-Substituted Polyoxotungstate-Supported {(Cp*Rh)2}4+ Complex; (Bun4N)5[(Cp*Rh)2P2W15V3O62]
Authors: Nomiya Kenji , Hasegawa Takeshi 
Published: December 2003

Abstract
A novel polyoxotungstate-based 2 : 1-type Cp*Rh2+ complex, (Bun4N)5[(Cp*Rh)2P2W15V3O62] (Cp* = C5Me5), was synthesized by a direct reaction of the Dawson trivanadium-substituted polyoxotungstate (Bun4N)9[α-1,2,3-P2W15V3O62] with an equimolar amount of [Cp*RhCl2]2 in ice-cooled CH2Cl2, without use of silver(I) salts to remove the chloride ions of the precursor.
Ligand Dissociation in the Excited State of 2-Thenoyltrifluoroacetonatoeuropium(III) Ion in Aqueous Solution
Authors: Tsukahara Satoshi , Fujiwara Mihoko , Watarai Hitoshi 
Published: December 2003

Abstract
In the emission decay kinetics of Eu(III)–2-thenoyltrifluoroacetone (Htta) aqueous system, we found out a new quenching mechanism due to the tta− dissociation from Eu(tta)2+ in the excited state. The mechanism well explained the double-exponential decay of the fluorescence observed in the Eu(III)-Htta system. The analysis of the decay curve observed at various temperatures gave the rate constants and thermodynamic parameters for the tta− dissociation from Eu(tta)2+.
193-nm Photoresists Based on Norbornene Copolymers with Derivatives of Bile Acid
Authors: Kim Jin-Baek , Lee Bum-Wook , Yun Hyo-Jin , Kwon Young-Gil 
Published: December 2003

Abstract
We synthesized new chemically amplified photoresists for 193-nm lithography. Norbornene substituted with a derivative of bile acid was copolymerized with maleic anhydride by free radical polymerization. The resulting copolymers have good transmittance at 193 nm and possess excellent thermal stability up to 260 °C. With the standard developer, the resists formulated with the copolymers form 0.15–0.18 µm patterns at doses of 6–7 mJ cm−2 using an ArF excimer laser stepper.
Preparation and Structure of a Dinuclear Iron(III) Complex with Six Terminally Coordinated Azides: A Precursor for Multidimensional Network
Authors: Nair Balachandran Unni , Weyhermüller Thomas 
Published: December 2003

Abstract
A novel dinuclear hexazido iron(III) complex of a binuclear macrocycle has been synthesized and characterized by its crystal structure determination.
Stereochemistry and Mechanism of Vinyl-migrating [1,2]-Wittig Rearrangement of α-Lithioalkyl Vinyl Ethers
Authors: Tomooka Katsuhiko , Inoue Tadashi , Nakai Takeshi 
Published: December 2003

Abstract
Enantiomerically defined α-stannylalkyl or α-methylbenzyl vinyl ethers, when treated with butyllithium, are shown to undergo the 1,2-vinyl migration to afford the allylic alcohols in almost racemic form in low or high yield, respectively, thereby proposing the radical cleavage-recombination pathway.
1H Spin-Lattice Relaxation Times of Water, Methanol, and Ethanol under Sub- and Supercritical Conditions
Authors: Tsukahara Takehiko , Harada Masayuki , Ikeda Yasuhisa , Tomiyasu Hiroshi 
Published: December 2003

Abstract
1H NMR spin-lattice relaxation times (T1) of water, methanol, and ethanol (abbreviated as W.M.E) were measured in the range of 25 to 400 °C at 30, 20, and 20 Mpa, respectively by using high-pressure NMR. It was found that the T1 values for each group of W.M.E increase with an increase in temperature up to around 220, 160, and 170 °C, and that above these temperatures, the T1 values decrease and approach a constant value at 300, 200, and 220 °C, respectively. It is explained that the spin-lattice relaxation (SLR) processes are dominated by the dipole-dipole (DD) mechanism at lower temperature and by the spin-rotation (SR) mechanism at higher temperatures. The reasons that the T1 values are nearly constant are supposed.
Effect of Heavy Ion Irradiation on Sucrose
Authors: Nakagawa Kouichi 
Published: December 2003

Abstract
Heavy ion irradiation of sucrose produces stable free radicals. The relative spin concentration obtained after the heavy ion irradiation increases linearly as the absorbed dose increases. It decreases logarithmically as LET (linear energy transfer) increases. Production of the relative spin concentration of He (helium) ion irradiated specimen was two times more dependent on LET than that for C (carbon) ion irradiation.
Electrospray Ionization Mass Spectrometric Observation of the Coordinative Interaction of &#945,&#946-Unsaturated Ketones with Cerium(III) Cation
Authors: Asakura Katsuo , Yamaguchi Kentaro , Imamoto Tsuneo 
Published: December 2003

Abstract
The coordinative interaction of carbonyl oxygen of α,β-unsaturated ketones with the cerium(III) cation is observed by electrospray ionization mass spectrometry.
Photophysical and Photochemical Behavior of Triplet Excited State of C60 in Unimer Micelle
Authors: Onodera Hitoshi , Masuhara Akito , Fujitsuka Mamoru , Ito Osamu , Higashida Suguru , Imahori Hiroshi , Sakata Yoshiteru 
Published: December 2003

Abstract
Photophysical and photochemical properties of C60-pendant polymer in aqueous solution, in which C60 was covalently incorporated into polymer cluster (C60/unimer), have been studied by transient absorption spectroscopy. 3C60*/unimer was quenched by O2 in two routes; the initial fast decay component was increased by addition of a detergent. From these observations, kinetic models for the quenching are proposed.
Hydrogenation of Five-Membered Heteroaromatic Compounds Catalyzed by a Rhodium-Phosphine Complex
Authors: Kuwano Ryoichi , Sato Koji , Ito Yoshihiko 
Published: December 2003

Abstract
The rhodium complex generated in situ from Rh(acac)(cod) and 2 equivalents of triphenylphosphine is an effective catalyst for hydrogenation of various five-membered heteroaromatic compounds.
DDQ as a Versatile Reagent for Oxidative Cleavage of Tosylhydrazones and Oximes
Authors: Chandrasekhar S , Reddy Ch Raji , Reddy M Venkat 
Published: December 2003

Abstract
2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) was found to be a very efficient oxidative reagent for the selective cleavage of tosylhydrazones and oximes of carbonyl compounds for the first time.
Rhamnosylation Reaction with a Phenyl 1-Thiorhamnoside and a Rhamnosyl Fluoride Which Have 4C1 Conformation
Authors: Yamada Hidetoshi , Ikeda Tomonari 
Published: December 2003

Abstract
Rhamnosylation reaction with a phenyl 1-thiorhamnoside and a rhamnosyl fluoride that has chair conformation with more axial substituents (4C1) is described. Flipping of the ring conformation changed the high α-selectivity of the general rhamnosylation reaction. More β-rhamnosides were afforded under several conditions.
Activation of a trans-Dialkyl(oxo)tungsten Complex Bearing a 2,6-Pyridinediethanolate Ligand with Aluminum Cocatalysts to Catalyze the ROMP of Norbornene
Authors: Nakayama Yuushou , Ikushima Naoko , Ueyama Norikazu , Nakamura Akira , Harada Akira 
Published: December 2003

Abstract
A novel trans-bis(trimethylsilylmethyl)(oxo)tungsten complex bearing an O–N–O tridentate ligand, WO(Me4pyde)(CH2SiMe3)2 (4, pyde = 2,6-pyridinediethanolate), was synthesized and was confirmed to have octahedral structure with two alkyl groups in trans position by X-ray analysis. Complex 4 catalyzed the polymerization of norbornene although its activity was rather low. The activity of 4 could be dramatically enhanced by the use of AlEt3 or AlCl3 as a cocatalyst.
Effect of MgCl2 in Vapor-Phase Hydrogen Transfer Reaction between Acrolein and 2-Propanol over MgO Catalyst Systems
Authors: Nagase Yoshinori , Katou Tokumitsu 
Published: December 2003

Abstract
Vapor-phase hydrogen transfer reaction between acrolein and 2-propanol over MgO catalyst systems has investigated. We found that, particularly at early reaction time, both the high activity and remarkable increase of allyl alcohol selectivity were achieved by the addition of a small amount of MgCl2 on MgO catalyst.
Highly α-Selective Synthesis of Disaccharide Using Glycosyl Bromide by the Promotion of Phosphine Oxide
Authors: Mukaiyama Teruaki , Kobashi Yohei 
Published: December 2003

Abstract
A simple and practical method for the glycosylation of several acceptors with 2,3,4,6-tetra-O-benzyl-d-glucopyranosyl bromide was established by the promotion of phosphine oxide. The corresponding disaccharides were obtained in high yields with extremely high α-selectivities under almost neutral condition.
Photoinduced Reorientation of Polymethacrylate Film with 4-Methoxyazobenzene Side Groups Using Linearly Polarized He–Ne Laser and Annealing
Authors: Kawatsuki Nobuhiro , Uchida Emi , Ono Hiroshi 
Published: December 2003

Abstract
This letter describes thermally enhanced reorientation of azobenzene-containing polymer films by linearly polarized (LP) 633 nm He–Ne laser light. Axis-selective photoreaction of the Z-isomers and subsequent annealing generated parallel reorientation with a reorientational order larger than +0.8 although the film was almost off-resonant at 633 nm.
Biphasic Hydroformylation of 1-Hexene with Carbon Dioxide Catalyzed by Ruthenium Complex in Ionic Liquids
Authors: Tominaga Ken-ichi , Sasaki Yoshiyuki 
Published: December 2003

Abstract
Hydroformylation of 1-hexene using carbon dioxide as carbonyl carbon source attained high yield and good chemoselectivity in heptanols when a ruthenium complex was used in biphasic ionic liquid–toluene system.
Effects of Molybdenum Doping on the Layered Li[Ni0.5+xMn0.5−2xMox]O2 Cathode Materials for Lithium Secondary Batteries
Authors: Park Sang Ho , Oh Sung Woo , Kang Sung Goon , Myung Seung-TaeK , Sun Yang-Kook 
Published: December 2003

Abstract
Molybdenum-doped layered Li[Ni0.5+xMn0.5−2xMox]O2 materials were synthesized by an ultrasonic spray pyrolysis method. Single phase of Li[Ni0.5+xMn0.5−2xMox]O2 could be prepared in 0 ≤ x ≤ 0.05 region. Structural and electrochemical properties of the Li[Ni0.5+xMn0.5−2xMox]O2 were characterized by means of X-ray diffraction, Rietveld refinements, and galvanostatic charge/discharge test. The discharge capacity increased linearly with the increase of molybdenum contents, x, and exhibited a high discharge capacity over 175 mAh/g between 2.8 and 4.4 V with a good capacity retention.
An Artificial Regulation System for DNA-transcription: Learning from Prokaryotic Organisms
Authors: Murata Masaharu , Yamasaki Tomo , Maeda Mizuo , Katayama Yoshiki 
Published: December 2003

Abstract
A small molecule was labeled as an antigen in DNA during PCR. In vitro transcription reaction using the DNA as a template was regulated by specific interaction between the antigen and its monoclonal antibody.
O2 Gas Sensor Using Supported Hydrophobic Room-temperature Ionic Liquid Membrane-coated electrode
Authors: Wang Rong , Hoyano Satoshi , Ohsaka Takeo 
Published: December 2003

Abstract
A solid-state amperometric O2 gas sensor was successfully fabricated by using supported 1-n-butyl-3-methylimidazolium hexafluorophosphate (BMIPF6) porous polyethylene membrane as a solid-state electrolyte. The present O2 gas sensor, which is capable of being operated at room temperature, shows a wide detection range and a high stability.
A Facile One-pot Benzylation of Sodium Enolates Using Trifluoromethansulfonic Anhydride and Diphenyl Sulfoxide
Authors: Takuwa Tomofumi , Onishi Jim Yoshitaka , Matsuo Jun-ichi , Mukaiyama Teruaki 
Published: December 2003

Abstract
A facile one-pot C-benzylation reaction proceeded smoothly and in good yields by treating various sodium enolates and benzyl alcohol with in situ generated alkoxy diphenyl sulfonium salt derived from trifluoromethansulfonic anhydride and diphenyl sulfoxide.
Telehealth in Western Australia: The challenge of evaluation
Authors: Dillon Eric , Loermans Jozef 
Published: December 2003

summary Between 1996 and 2003, a network of 85 telehealth videoconference sites was implemented in Western Australia (WA), together with 19 teleradiology facilities. Telehealth services have been growing steadily, and in 2002 there were over 30,000 teleradiology transmissions and 1250 clinical occasions of service via videoconference. The funding bodies, and in particular the WA Department of Health, need to know whether the aims of the project have been achieved. They must also decide whether investment should continue. A process of progressive evaluation has been implemented to identify progress to date, the benefits achieved and the potential for further development. However, it is difficult to evaluate a broad range of programmes in rural and remote locations for such an embryonic service. These difficulties are compounded by the lack of a strategy at national level to ensure consistency and compatibility not only of infrastructure, equipment and standards but also of data capture and evaluation methodologies for telehealth. This would allow comparisons across regions and states, which in turn would provide opportunities to learn from others and thus improve health-care nationally.
Dermatology education on the Web
Authors: Mccoll Ian 
Published: December 2003

summary Conventional dermatology teaching favours a didactic, factual approach, rather than a problem-solving approach. A Web-based education system that uses a problem-solving approach offers many advantages. Several international Websites now provide continuing education to specialist dermatologists. These are all ‘discretionary’ Websites, that is, they are visited by choice; ‘obligatory’ educational Websites are those tied to a university medical faculty or postgraduate college and which host either online tasks that must be completed or unique examinable material. An interactive education Website, named Dermconsult, has been established unofficially for fellows of the Australasian College of Dermatologists and registrars in training. However, a successful Website will require backing from certifying organizations. Continuing medical education will need to be compulsory for potential users if an educational Website is to be successful.
The use of online health techniques to assist with the delivery of specialist paediatric diabetes services in Queensland
Authors: Smith Anthony C , Batch Jennifer , Lang Eunice , Wootton Richard 
Published: December 2003

summary We have tested an alternative method of delivering health services to regional areas of Queensland. By integrating telepaediatrics into an existing outreach programme for children with diabetes and endocrine conditions, we were able to reduce travel for specialist hospital staff while maintaining (and sometimes increasing) the contact patients had with the specialist team. In the first 28 months, we facilitated 160 patient consultations and 10 education sessions via videoconference through the telepaediatric service. By the end of the study, site visits were taking place annually and routine videoconference clinics were scheduled quarterly for the review of new patients and follow-up. Telepaediatric services in endocrinology and diabetes were established at three levels: the coordination of routine specialist clinics via videoconference; ad hoc patient consultations for collaborative management during acute presentations and at times of urgent clinical need; and the delivery of education to staff and patients throughout the state. The net result was improved access to specialist services from rural and remote areas of Queensland.
A national survey of telehealth activity in Australian hospitals
Authors: Wootton Richard , Blignault Ilse , Cignoli Joanne 
Published: December 2003

summary We conducted a nationalsurvey of Australian hospitals to assess their use of telehealth. Information was sought from the 814 hospitals with 10 or more beds, excluding the small number that provided only day surgery and seven for which we could not identify a contact person. A total of 564 replies were received (a 69% response rate). Nationally, nearly half (49%) reported that they were engaged in some telehealth activity. However, there was a significant difference across jurisdictions. Hospitals in the public sector were significantly more likely to report the use of telehealth than those in the private sector (62% vs 14%). Hospital remoteness was measured according to the Accessibility/Remoteness Index of Australia (ARIA). The highest levels of use were reported by hospitals in ‘very remote’ and ‘remote’ areas (90% and 88%, respectively), with moderate levels of use in ‘moderately accessible’ and ‘accessible’ areas (67% and 52%, respectively) and the lowest level of use in ‘highly accessible’ areas (35%). This trend was significant.
Telehealth responses to bio-terrorism and emerging infections
Authors: Yellowlees Peter , Mackenzie John 
Published: December 2003

summary Emerging infectious diseases, such as severe acute respiratory syndrome (SARS), are of huge economic importance. They are difficult to predict. The World Health Organization has a Global Outbreak Alert and Response Network, which was involved at an early stage in the SARS outbreak in 2003. Three major lessons were learned as a result of the SARS epidemic in 2003, involving communication, evidence-based action and global partnerships. It is proposed that a series of broadband global response networks should be developed. At a technical level the networks are essentially in place, such as the Internet2 global network. Suitable peripheral devices also exist. What has not yet been created is the appropriate software to allow the use of these networks, although a number of commercial products are in the process of development.