bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spectroscopic properties of Zn‐naphtholimines‐TCNQ charge transfer complexes with variable ligand radicals
Authors: Robles Martínez J. G. , Salmerón Valverde A. , Zehe A. 
Published: March 2003

AbstractOver the last decades, many different types of charge transfer complexes have been discussed as organic metals. The design and synthesis of the required efficient p‐electron donors constitutes an active area of modern materials chemistry. An important family with these properties is based on naphtholimines, which are known to form electrically conductive salts with a variety of organic acceptor molecules such as tetracyano‐pquinodimethane (TCNQ). Since the reduction potential of transition metal complexes can be readily modified by the selection of proper ligands and ligand substitution, such complexes are favored candidates for designed syntheses. The present work is aimed toward the study of Zn‐Naphtholimines‐TCNQ charge transfer complexes with fractional electron transfer per formula unit. The electron transfer is an essential factor in the control of electrical conductivity. Of particular interest was the effect of ligand volume variations on the degree of charge transfer. Both IR‐ spectroscopy and electron paramagnetic resonance (EPR) spectroscopy were used as analytic tools. We found, that Zn[RNAFIN]2‐2TCNQ molecules are partially ionized, and that the electron delocalization is strongly affected by the chosen ligand volume.
Single‐Source Chemical Vapor Deposition of Zinc Sulfide‐Based Thin Films from Zinc bis(O‐ethylxanthate)
Authors: Barreca D. , Tondello E. , Lydon D. , Spalding T.R. , Fabrizio M. 
Published: March 2003

AbstractA novel single‐source precursor, zinc bis(O‐ethylxanthate), was employed for the CVD of ZnS‐based thin films. The coatings were deposited on SiO2 and SiO2/Si(100) substrates in a N2 atmosphere in a cold‐wall reactor in the temperature range 250–400 °C. The optical properties of the films were investigated by ultra violet‐visible (UV‐vis) absorption and Fourier transform infrared (FTIR) spectroscopies. The surface and in‐depth chemical composition were studied by X‐ray photoelectron spectroscopy (XPS), X‐ray excited Auger electron spectroscopy (XE‐AES), and secondary ion mass spectrometry (SIMS). Finally, atomic force microscopy (AFM) was employed to analyze the surface morphology of the coatings. Very thin films, with thickness less than 30 nm and no evidence of crystalline phases, were grown at temperatures of at least 300 °C. Optical measurement showed that the coatings were highly transparent ( > 80 %) throughout the visible and IR spectral ranges.
Comparison of the effect of mitochondrial inhibitors on mitochondrial membrane potential in two different cell lines using flow cytometry and spectrofluorometry
Authors: Kalbáčová Marie , Vrbacký Marek , Drahota Zdeněk , Mělková Zora 
Published: March 2003

AbstractBackgroundDetermination of mitochondrial membrane potential (ΔΨm) is widely used to characterize cellular metabolism, viability, and apoptosis. Changes of ΔΨm induced by inhibitors of oxidative phosphorylation characterize respective contributions of mitochondria and glycolysis to adenosine triphosphate (ATP) synthesis.MethodsΔΨm in BSC‐40 and HeLa G cell lines was determined by flow cytometry and spectrofluorometry. Its changes induced by specific mitochondrial inhibitors were evaluated using 3,3′‐dihexyloxacarbocyanine iodide (DiOC6(3)), tetramethylrhodamine ethyl ester, and MitoTracker Red. Mitochondrial function was further characterized by oxygen consumption.ResultsInhibition of respiration by antimycin A or uncoupling of mitochondria by FCCP decreased ΔΨm in both cell lines. Inhibition of ATP production by oligomycin or atractyloside induced a moderate decrease of ΔΨm in HeLa G cells and an increase of ΔΨm in BSC‐40 cells. Statistically significant differences in ΔΨm between the two cell lines were found with both flow cytometry and spectrofluorometry. Respirometry showed higher basal and FCCP‐stimulated respiration in BSC‐40 cells.ConclusionChanges of ΔΨm and oxygen consumption showed that BSC‐40 cells are more sensitive than HeLa G cells to inhibitors of mitochondrial function, suggesting that BSC‐40 cells are more dependent than HeLa G cells on aerobic ATP production. Determination of ΔΨm changes by flow cytometry exhibited greater sensitivity than the ones by spectrofluorometry. Cytometry Part A 52A:110–116, 2003. © 2003 Wiley‐Liss, Inc.
A dialectical behavior therapy program for people with an eating disorder and borderline personality disorder—description and outcome
Authors: Palmer Robert L. , Birchall Helen , Damani Sadhana , Gatward Nicholas , McGrain Lesley , Parker Lorraine 
Published: March 2003

AbstractObjectiveTo describe and evaluate a full dialectical behavior therapy (DBT) program for people with comorbid eating disorder and borderline personality disorder. The program included a novel skills training module written especially for eating‐disordered patients.MethodThe program was run for 18 months. Days in hospital and major acts of self‐harm were counted for the 18 months before and after DBT.ResultsThere were no dropouts from the program. The patients seemed to benefit. Most patients were neither eating disordered nor self‐harming at follow‐up.DiscussionFull DBT is an expensive and demanding treatment but deserves consideration for patients with an eating disorder and co‐morbid borderline personality disorder and self‐harm. There is a need for a more systematic and thorough evaluation. © 2003 by Wiley Periodicals, Inc. Int J Eat Disord 33: 281–286, 2003.
Achalasia mimicking prepubertal anorexia nervosa
Authors: Richterich Andreas , Brunner Romuald , Resch Franz 
Published: March 2003

AbstractA 9‐year‐old girl presents for continuing weight loss of 10kg over the course of 1 year. Medical history showed three episodes of pneumonia requiring hospital admission in the 6 months before presentation and 4 months of weekly psychotherapy for anorexia nervosa. A thorough history of eating behavior and a review of systems revealed not only typical aspects of prepubertal anorexia nervosa but also vomiting at night while asleep, difficulty drinking liquids, epigastric pain, and a frequent experience of “a lump in the throat”; these symptoms were not suggestive of a diagnosis of anorexia nervosa but rather of esophageal achalasia. The patient was transferred to the Department of Pediatrics, and a diagnosis of esophageal achalasia was made by chest x‐ray and barium swallow. After dilatation and botulinum toxin application, the patient regained weight easily and was discharged in stable condition. In this case, esophageal achalasia mimicked prepubertal anorexia nervosa. © 2003 by Wiley Periodicals, Inc. Int J Eat Disord 33: 356–359, 2003.
Cognitive processing of anorexic patients in recognition tasks: An event‐related potentials study
Authors: Dodin Vincent , Nandrino Jean‐Louis 
Published: March 2003

AbstractObjectiveWe used event‐related potentials (ERPs) to test whether anorexic subjects have difficulties in filtering out irrelevant stimuli in controlled information processing tasks.MethodsERPs from 12 anorexic patients were recorded during recognition of simple and complex body images and simple and complex geometrical shapes.ResultsAnorexic subjects had larger P300 amplitudes for frequent stimuli during body images and simple geometrical shape recognition tasks. Longer P300 latencies were also found in simple geometrical shape recognition tasks, although task complexity had no effect on the P300 latency and amplitude.DiscussionThese results are explained in terms of nonspecific hyperarousal in mental anorexia and relative inability to filter out irrelevant stimuli leading to working memory saturation. © 2003 by Wiley Periodicals, Inc. Int J Eat Disord 33: 299–307, 2003.
Differential heritability of eating attitudes and behaviors in prepubertal versus pubertal twins
Authors: Klump Kelly L. , McGue Matt , Iacono William G. 
Published: March 2003

AbstractObjectiveDifferential heritability of eating pathology in prepubertal, pubertal, and 17‐year‐old twins was examined using a population‐based twin sample.MethodParticipants included 530 11‐year‐old (452 prepubertal, 78 pubertal twins) and 602 17‐year‐old female twins from the Minnesota Twin Family Study. Puberty was assessed with the Pubertal Development Scale, and general eating pathology was assessed with the total score from the Minnesota Eating Disorders Inventory (M‐EDI).ResultsM‐EDI total score intraclass correlations for the pubertal 11‐year‐old group were more similar to the 17‐year‐old twins' than the prepubertal 11‐year‐old twins, suggesting similar levels of genetic influence in the pubertal and older adolescent cohort. Model‐fitting corroborated these impressions, indicating that genetic factors accounted for 0% of the variance in 11‐year‐old prepubertal twins but 54% of the variance in 11‐year‐old pubertal and 17‐year‐old twins.DiscussionFindings suggest that a portion of the genetic influence on eating pathology may become activated during puberty. © 2003 by Wiley Periodicals, Inc. Int J Eat Disord 33: 287–292, 2003.
An efficient radio transmission scheme of configuration data for FPGA‐based downloadable software radio communication systems
Authors: Honda Makoto , Harada Hiroshi , Fujise Masayuki 
Published: March 2003

AbstractIn the radio transmission of FPGA configuration data, the information transmission quality of the software radio receiver is degraded not only by the essential effect of the radio transmission channel, but also by logic circuit faults due to error produced in the configuration data. This paper considers the case in which the roll‐off filter, which is a main hardware of the demodulator, is designed using a look‐up table (LUT), which is a component of an FPGA, and the software radio receiver is configured by the radio transmission of LUT content as configuration data. The quality degradation is examined by computer simulation. A highly efficient transmission scheme for the configuration data is proposed, and it is shown that the number of symbols for transmission of the configuration data is reduced by 25% without significant performance degradation. © 2003 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 86(7): 31–41, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.10003
Immunity testing cell using a rectangular loop resonator comprised of a conducting channel plate and a capacitive gap
Authors: Saito Masahiro , Saegusa Kenji , Hasebe Nozomu 
Published: March 2003

AbstractTEM cells that are popular in immunity measurements require high operating power. In this paper, an immunity testing cell using a rectangular loop resonator is proposed. The testing cell is expected to generate high electric field strength at comparatively low power. The resonator comprises a conducting channel plate and a capacitive gap set onto the ground plane. The testing cell has a size of 1/10 wavelength at the testing frequency and therefore is suitable for immunity testing at low frequency. In this study, the electric and magnetic field distribution inside two different types of proposed resonators are analyzed by the FDTD method. Comparison of analytical and experimental results shows a close match. The electric field strength inside the two resonator types is increased by 31.2 and 14.3 dB, respectively, relative to that of the TEM cell of similar size. In the latter type of resonator the electric field deviation inside a square area of 100 mm length is suppressed to 2 dB. Moreover, the resonator covered with a shield case for practical use shows an increase of 11.2 dB in the electric field strength over the level of the similar size TEM cell. The amplitude deviation remains the same as that of the bare resonator. © 2003 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 86(7): 22–30, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.10011
Spatiotemporal propagation characteristics of non‐line‐of‐sight using low antenna‐height base station in microcellular environment
Authors: Sekizawa Shinya , Taira Kazumasa , Kamio Yukiyoshi , Mizuno Mitsuhiko 
Published: March 2003

AbstractAs a remedy to multipath fading in land mobile communication, adaptive antenna arrays combined with equalizers have been proposed. For hardware realization and adaptive algorithm development in order to alleviate fading by temporal and spatial processing, it is necessary to clarify the spatiotemporal characteristics of the propagation channel such as the delay time and direction of arrival of multipath waves. In a microcell using a low antenna‐height base station, the spatiotemporal propagation characteristics are measured for line‐of‐sight and non‐line‐of‐sight propagation at 3.35 GHz. Characteristics of these channels have been presented. With regard to non‐line‐of‐sight propagation, the measured spatiotemporal characteristics are modeled and the angular spread and the delay spread of the arriving waves are quantitatively evaluated. Also, when the transmission characteristics of fading prevention techniques by spatiotemporal processing are evaluated by computer simulation, an example of the delay‐azimuth profiles that is usable as a reference for setting the conditions for fading is presented. © 2003 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 86(7): 11–21, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.10032
An ISAR imaging algorithm for multiple targets of different radial velocity
Authors: Yamamoto Kazuhiko , Iwamoto Masafumi , Fujisaka Takahiko , Kirimoto Tetsuo 
Published: March 2003

AbstractInverse Synthetic Aperture Radar (ISAR) is a well‐known technique for acquiring images of a moving target by using the synthetic aperture method. This radar improves the angle resolution based on the Doppler effect accompanying the relative motion with respect to the target, estimates the target motion from the echoes, and must compensate for the range migration during the observation and the fluctuations in the Doppler frequency. However, the problem faced when multiple targets, such as a formation of airplanes, are simultaneously observed is that the echoes of targets having slightly different motions interfere and degrade the estimation of the motion and the image resolution. Here, we propose an algorithm capable of separating the echo of each target, estimating the motion of each target, and compensating for the unwanted motion of each target based on the motion estimates even when multiple targets are simultaneously observed by utilizing the two‐dimensional discrete Fourier transform. We conducted computer simulations and demonstrated the ability to generate the images from two target echoes and confirmed the effectiveness of the proposed method. © 2003 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 86(7): 1–10, 2003; Published online in Wiley InterScience (www.interscience.wiley. com). DOI 10.1002/ecja.10090
A flat, multiscalable, highly efficient and reliable video transmission scheme
Authors: Kawada Ryoichi , Matsumoto Shuichi 
Published: March 2003

AbstractThe transmission of video materials by digital compression has been widely applied in recent years. The following problems are involved in this approach. (1) A duplex system composed of main and backup links is often used in the transmission of video materials. Thus, the transmission capacity of the backup system becomes redundant in the normal state. (2) No automatic image quality monitoring method for video transmission has been established. On the other hand, the coding/decoding techniques for digital video transmission are almost fully established, and various devices are already widely used. Thus, it is highly desirable to reduce the above redundancy, that is, to achieve highly efficient automatic picture quality monitoring. Consequently, this paper proposes a flat multiscalable video transmission scheme in which highly efficient and highly reliable video transmission with automatic picture quality monitoring can be realized by simply adding pre‐ and postprocessing, without modifying the existing coding/decoding devices. In the proposed scheme, noise cancellation by averaging and high picture quality are realized by processing that reduces the correlation of coding noise in the decoded video pictures of the two systems. The SN ratios of the received video and the original pictures can be estimated from the residual correlation. The proposed scheme can be applied not only to improving the efficiency of video materials transmission, but also to improving the reliability of picture transmission over the Internet. © 2003 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 86(7): 42–53, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.1168
FDTD computation of electromagnetic fields caused by electrostatic discharge between charged metal spheres
Authors: Fujiwara Osamu , Okuda Koichi , Fukunaga Kaori , Yamanaka Yukio 
Published: March 2003

AbstractIn a discharge between charged metal spheres, the effect of the metal spheres on the generated electromagnetic field has not been clearly indicated. One of the authors (Fujiwara) has proposed the following computation method (called the image dipole method) for a spark discharge between metal spheres. The surface of the metal sphere is replaced by an infinite number of image charge pairs, which are arranged so that the surface is kept at the same potential. Then, the generated electromagnetic field is calculated analytically by superposition of the dipole fields caused by the spark current derived from the Rompe‐Weizel spark‐resistance law. It has been shown by the analysis that the metal sphere increases the field level. Then, the electromagnetic field generated by the spark discharge between metal spheres is calculated numerically by the finite‐difference time‐domain (FDTD) method, with the spark current as an excitation source for the metal sphere. The validity of the approach has been shown through comparison to the analytic solution by the image dipole method for the magnetic field waveform.However, the above computation method has the problem that the static electric field before the onset of the discharge cannot be calculated, which makes it difficult to understand fully the ESD field produced by the charged metal bodies. In this paper, the generated electromagnetic field is calculated by the FDTD method (voltage source method), with the spark voltage derived from the spark‐resistor law as an excitation source. The result is compared to the results of calculations by the image dipole method and the current source method. It is shown that the waveform of the electrostatic field cannot be calculated by the current source method, but the voltage source method can calculate the field as in the case of the image dipole method. It is also seen that the magnetic field waveforms obtained by any calculation almost completely agree. The magnetic field waveform generated in the discharge experiment between metal spheres is observed by using a shielded magnetic field probe and a wideband oscilloscope (bandwidth 1.5 GHz), and is shown to agree almost completely with the results of calculations by the voltage source method and the image dipole method. © 2003 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 86(7): 54–63, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.1169
Subcodes constructed from bases of Reed‐Solomon codes
Authors: Fuwa Shigehide , Tanabe Hidehiko , Umeda Hiroyuki 
Published: March 2003

AbstractThis paper proposes a method of constructing nonlinear cyclic codes that form an additive group for which the decoding complexity or error correcting performance is improved relative to RS codes, which are typical linear cyclic codes. First, a code with information digit count k = 1 is constructed by using multiple RS code basis vectors obtained from Galois field Fourier transforms. Then, for k 1, codes are constructed from this code by using idempotent elements. Also, a code with code length n = 7 was constructed as an example, and both its minimal trellis diagram complexity and bit error rate on the AWGN channel due to a computer simulation were shown to be excellent. In addition, an iterative decoder was applied to the codes with k = 4 and 5, which had peak trellis diagram complexity, and it was shown that the decoding complexity could be reduced. © 2003 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 86(7): 64–73, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.1170
Glasses with Medical Applications
Authors: Vallet‐Regí María , Ragel C. Victoria , Salinas Antonio J. 
Published: March 2003

AbstractBioactive glasses react chemically with the body fluids. The reaction product is an apatite, which, with the intervention of biological drivers, assists the generation of bone matrix and bone growth. The main application of these bioactive glasses in the clinical field is the filling of osseous cavities, manufacture of small parts for middle ear bone replacement and maxilofacial reconstruction and dental applications. Thanks to advances in related medical technologies, bioactive glasses are now undergoing a new stage of development, resulting in different mechanical properties, drug delivery capabilities, bioactive coating of metallic implants, protein and/or cell activation for tissue regeneration and tissue engineering, and are also finding use in biomimetics, nanotechnology, production of hybrid organic‐inorganic materials and as bioactivity accelerators of mineral apatites or as bioactivity inductors of magnetic materials for hyperthermia treatment of osseous tumours. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)
First Star‐Like Oligophenylene Molecules Containing a Dinuclear Organometallic Core
Authors: Chérioux Frédéric , Therrien Bruno , Süss‐Fink Georg 
Published: March 2003

AbstractThe cationic complexes Ru2[(p‐MeC6H4iPr)2(p‐SC6H4Br)3]+ and Rh2[(C5Me5)2(p‐SC6H4Br)3]+ are available in quantitative yields from the reaction of p‐HSC6H4Br with [Ru(pMeC6H4iPr)Cl2]2 and [Rh(C5Me5)Cl2]2 respectively. These complexes are found to undergo triple Suzuki coupling with oligophenylene boronic acids to give [Ru2(p‐MeC6H4iPr)2{p‐S‐(C6H4)n‐C6H5}3]+ and [Rh2(C5Me5)2{p‐S‐(C6H4)n‐C6H5}3]+ respectively. The star‐like trisbromo complexes are potential precursors for the insertion of dinuclear organometallic entities into the main chain of conjugated molecules. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)