bluuebunny/crossref_metadata_2025_split huggingface dataset:
A compact multilayer diplexer in LTCC substrate using LPF with multiple attenuation poles and wideband BPF
Authors: Oshima Shimpei , Wada Kouji , Murata Ryuji , Shimakata Yukihiro 
Published: April 2010

AbstractRecently, compact wideband BPFs for a UWB system have been studied actively. In this paper we propose a compact diplexer built into an LTCC substrate for a UWB system and 2.4‐GHz wireless systems. First, a wideband BPF for a UWB system and an LPF with multiple attenuation poles for 2.4‐GHz wireless systems are described. Second, we design matching circuits of a common port to retain the basic performance of both the BPF and the LPF. Third, in accordance with the results of the study, we design a compact diplexer built into an LTCC substrate. Finally, we verify the effectiveness of the proposed method by experiments. © 2010 Wiley Periodicals, Inc. Electron Comm Jpn, 93(5): 24–32, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecj.10210
Development of an evaluation method for controlling skill of a myoelectric control hand
Authors: Hara Yoshizaki , Matsubara Hiroyuki , Shibata Yaeko , Mizobe Futoshi , Fukazawa Yoshihiro , Okamoto Makiko , Chin Takaaki , Minato Kotaro , Yoshida Masaki 
Published: April 2010

AbstractThe aim of this study was to develop a new evaluation method for controlling skill of a myoelectric control hand (MCH). Four amputees who daily used the MCH participated in this study. Measurement of two signals which were needed to control motion of the MCH was made. The two signals were assigned as the average rectified electromyograms of the forearm extensors and flexors. The values of the signals increased depending on the muscle contraction level. Therapy for using the MCH was performed to improve the ability to produce separate contractions of two muscles. This ability was defined as the skill in controlling the motion of the MCH. The skill in each motion was evaluated by the regression coefficient, which was calculated by the least squares method. The regression coefficient was inversely proportional to the skill. A quantitative index of skill can be provided by the newly developed method, and should be useful in developing efficient therapy to improve the skill in controlling the MCH. © 2010 Wiley Periodicals, Inc. Electron Comm Jpn, 93(5): 15–23, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecj.10255
A revision of extended division algorithm for polynomial matrices and its applications
Authors: Kase Wataru 
Published: April 2010

AbstractIn this paper, the extended division algorithm for polynomial matrices proposed in Ref. 2 will be revised. The revised version of the algorithm divides the polynomial matrix part and the strictly proper transfer function matrix part for a given improper transfer function matrix, which is useful for analysis and synthesis. Using the new version, a calculation of stabilizing controllers corresponding to the design in state space will be discussed. © 2010 Wiley Periodicals, Inc. Electron Comm Jpn, 93(5): 1–7, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecj.10298
Obstacle avoidance control on omnidirectional vehicle robots using range sensor
Authors: Shimada Akira , Kiddee Prasarn , Nishi Yujiro 
Published: April 2010

AbstractThere is a strong demand for intelligent vehicle robots in many fields. They are expected to assist in our daily lives. In order to implement them in practice, the robots should include useful functions such as path planning, navigation, and obstacle avoidance. This paper focuses on obstacle avoidance control techniques for multiple obstacles. The vehicle used as a platform is a mecanum wheel omnidirectional vehicle, which is driven on floors and includes a mounted scanner range sensor. The presented algorithm has the advantage of reducing multiple obstacle avoidance control to a single obstacle avoidance control scheme. Finally, experimental results are presented in order to evaluate the avoidance algorithms. © 2010 Wiley Periodicals, Inc. Electr Eng Jpn, 172(1): 58–68, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20933
Optical measurement of electric field distributions with time in a liquid at DC pulse voltage
Authors: Ihori Haruo , Ohnishi Atsushi , Ninomiya Sei , Fujii Masaharu 
Published: April 2010

AbstractFor electrical insulation diagnosis, it is necessary to obtain information about the electric field distribution and the space charge distribution in insulation materials. We have investigated the measurement of nonuniform electric field vector distributions in liquid dielectrics using an original method based on the electrooptic Kerr effect and the CT method. We developed an optical system that could measure electric field distributions in about 1 ms. In this study, when a DC voltage pulse of 50 ms width was applied to a sphere‐to‐plane electrode system, electric field distributions on some measurement planes were measured at intervals of 1 ms. The distribution a short time after application of the voltage pulse seemed to be disturbed. It is inferred that the “disturbance” was caused by changes in the density of the liquid due to movement of certain carriers in the liquid. Observation of the time of onset of the disturbance would make it possible to determine the behavior and electric characteristics of the liquid. © 2010 Wiley Periodicals, Inc. Electr Eng Jpn, 172(1): 1–9, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20940
Simultaneous design of the sensory morphology and controller of mobile robots
Authors: Sugiura Komei , Kawakami Hiroshi , Katai Osamu 
Published: April 2010

AbstractThis paper proposes a method for automatic design of the sensory morphology of a mobile robot. The proposed method employs two types of adaptations, ontogenetic and phylogenetic, to optimize the sensory morphology of the robot. In ontogenetic adaptation, reinforcement learning searches for the optimal policy, which is highly dependent on the sensory morphology. In phylogenetic adaptation, a genetic algorithm is used to select morphologies with which the robot can learn tasks faster. Our proposed method was applied to the design of the sensory morphology of a line‐following robot. We performed simulation experiments to compare the design solution with a hand‐coded robot. The results of the experiments revealed that our robot outperformed the hand‐coded robot in terms of the following accuracy and learning speed, although our robot had fewer sensors than the hand‐coded one. We also built a physical robot using the design solution. The experimental results revealed that this physical robot used its morphology effectively and outperformed the hand‐coded robot. © 2010 Wiley Periodicals, Inc. Electr Eng Jpn, 172(1): 48–57, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20965
Half‐Sandwich Benzylidene Ruthenium Complexes Bearing Phosphanyl‐Pyridine Ligands: Reactivity towards Nucleophiles and Electrophiles (Eur. J. Inorg. Chem. 12/2010)
Authors: Macías‐Arce Ignacio , Puerta M. Carmen , Valerga Pedro 
Published: April 2010

AbstractThe cover picture shows various reactions of the carbene complex [Ru(η5‐C5Me5){κ2‐P,N‐PiPr2NHC5H4N}(=CHC6H5)]+ over a view of Cádiz (phoenician Gadir), one of the oldest european continuously inhabited cities. These processes illustrate its ambiphilic character. It reacts as a nucleophile with Br?nsted acids, yielding a complex with an η2‐benzyl ligand. There are some previously described examples of this coordination mode for early transition metal benzylidene complexes, but this represents the first example of a structural characterization in the case of ruthenium complexes. The electrophilic behaviour of [Ru(η5‐C5Me5){κ2‐P,N‐PiPr2NHC5H4N}(=CHC6H5)]+ has been shown by reaction with hydride, giving rise to an η1‐benzyl complex. Normally, NMR studies allow unambiguous characterization of the η1 coordination of a benzyl ligand. However, especially for late transition metal complexes, distinction between the usually disregarded η2 and the generally considered η3 mode is difficult. We propose, from this study, that the presence of an η2‐benzyl ligand in metal complexes should not be ruled out only on the basis of their NMR spectra. The carbene complex also reacts with other bases like KOtBu, KN(SiMe3)2 and PMe3. Details are discussed in the article by I. Macías‐Arce, M. C. Puerta and P. Valerga on p. 1767 ff.
Translesion DNA synthesis polymerases in DNA interstrand crosslink repair
Authors: Ho The Vinh , Schärer Orlando D. 
Published: April 2010

AbstractDNA interstrand crosslinks (ICLs) are induced by a number of bifunctional antitumor drugs such as cisplatin, mitomycin C, or the nitrogen mustards as well as endogenous agents formed by lipid peroxidation. The repair of ICLs requires the coordinated interplay of a number of genome maintenance pathways, leading to the removal of ICLs through at least two distinct mechanisms. The major pathway of ICL repair is dependent on replication, homologous recombination, and the Fanconi anemia (FA) pathway, whereas a minor, G0/G1‐specific and recombination‐independent pathway depends on nucleotide excision repair. A central step in both pathways in vertebrates is translesion synthesis (TLS) and mutants in the TLS polymerases Rev1 and Pol ζ are exquisitely sensitive to crosslinking agents. Here, we review the involvement of Rev1 and Pol ζ as well as additional TLS polymerases, in particular, Pol η, Pol κ, Pol ι, and Pol ν, in ICL repair. Biochemical studies suggest that multiple TLS polymerases have the ability to bypass ICLs and that the extent ofbypass depends upon the structure as well as the extent of endo‐ or exonucleolytic processing of the ICL. As has been observed for lesions that affect only one strand of DNA, TLS polymerases are recruited by ubiquitinated proliferating nuclear antigen (PCNA) to repair ICLs in the G0/G1 pathway. By contrast, this data suggest that a different mechanism involving the FA pathway is operative in coordinating TLS in the context of replication‐dependent ICL repair. Environ. Mol. Mutagen., 2010. © 2010 Wiley‐Liss, Inc.
Multi-generational effects of polybrominated diphenylethers exposure: Embryonic exposure of male American kestrels (Falco sparverius) to DE-71 alters reproductive success and behaviors
Authors: Marteinson Sarah C. , Bird David M. , Shutt J. Laird , Letcher Robert J. , Ritchie Ian J. , Fernie Kim J. 
Published: April 2010

Abstract
Polybrominated diphenylethers (PBDEs) are additive flame-retardants that are environmentally persistent and bioaccumulative compounds of particular concern to species at high trophic levels, including predatory birds. The developmental effects of in ovo exposure to male birds at environmentally relevant levels of the PBDE technical mixture, DE-71, on reproductive success and behaviors using captive American kestrels (Falco sparverius) were determined. Males were exposed in ovo by direct maternal transfer to DE-71 and unintentionally to low concentrations of hexabromocyclododecane (HBCD) at three mean ± standard error DE-71 concentrations of 288.60 ± 33.35 ng/g wet weight (low-exposure), 1130.59 ± 95.34 ng/g wet weight (high-exposure), or background levels of 3.01 ± 0.46 ng/g wet weight (control). One year following exposure, males were paired with unexposed females. Reproductive success was lower in the high exposure pairs: 43% failed to lay eggs while all other pairs laid complete clutches; they also laid smaller clutches and produced smaller eggs with reduced fertility, parameters that were negatively correlated with paternal in ovo concentrations of all PBDEs, as well as individual congeners and HBCD. Throughout courtship, there were fewer copulations by all in ovo exposed males, fewer mate-calls made by high-exposure males, and decreasing trends in pair-bonding and nest-box behaviors across treatments that continued during brood rearing. The reductions in clutch size and fertility were associated with the reduced frequencies of male courtship behaviors, and were associated with increasing concentrations of the PBDE congeners BDE-47, -99, -100, -53, -138, and HBCD. The results of the present study confirm effects noted in the F0 generation and demonstrate that exposure to DE-71 affects multiple generations of this predatory avian species at environmentally relevant levels of exposure. Environ. Toxicol. Chem. 2010; 29:1740–1747. © 2010 SETAC
Perirhinal cortex hyperexcitability in pilocarpine‐treated epileptic rats
Authors: Benini Ruba , Longo Daniela , Biagini Giuseppe , Avoli Massimo 
Published: April 2010

AbstractThe perirhinal cortex (PC), which is heavily connected with several epileptogenic regions of the limbic system such as the entorhinal cortex and amygdala, is involved in the generation and spread of seizures. However, the functional alterations occurring within an epileptic PC network are unknown. Here, we analyzed this issue by using in vitro electrophysiology and immunohistochemistry in brain tissue obtained from pilocarpine‐treated epileptic rats and age‐matched, nonepileptic controls (NECs). Neurons recorded intracellularly from the PC deep layers in the two experimental groups had similar intrinsic and firing properties and generated spontaneous depolarizing and hyperpolarizing postsynaptic potentials with comparable duration and amplitude. However, spontaneous and stimulus‐induced epileptiform discharges were seen with field potential recordings in over one‐fifth of pilocarpine‐treated slices but never in NEC tissue. These network events were reduced in duration by antagonizing NMDA receptors and abolished by NMDA + non‐NMDA glutamatergic receptor antagonists. Pharmacologically isolated isolated inhibitory postsynaptic potentials had reversal potentials for the early GABAA receptor‐mediated component that were significantly more depolarized in pilocarpine‐treated cells. Experiments with a potassium‐chloride cotransporter 2 antibody identified, in pilocarpine‐treated PC, a significant immunostaining decrease that could not be explained by neuronal loss. However, interneurons expressing parvalbumin and neuropeptide Y were found to be decreased throughout the PC, whereas cholecystokinin‐positive cells were diminished in superficial layers. These findings demonstrate synaptic hyperexcitability that is contributed by attenuated inhibition in the PC of pilocarpine‐treated epileptic rats and underscore the role of PC networks in temporal lobe epilepsy. © 2010 Wiley‐Liss, Inc.
Lidocaine injections targeting CA3 hippocampus impair long‐term spatial memory and prevent learning‐induced mossy fiber remodeling
Authors: Holahan Matthew R. , Routtenberg Aryeh 
Published: April 2010

AbstractLearning a spatial location induces remodeling of the mossy fiber terminal field (MFTF) in the CA3 subfield of the dorsal hippocampus (Ramirez‐Amaya et al. (2001) J Neurosci 21:7340–7348; Holahan et al. (2006) Hippocampus 16:560–570; Rekart et al. (2007a) Learn Mem 14:416–421). These fibers appear to grow from the stratum lucidum into distal stratum oriens. Is this axonal growth dependent on “repeated and persistent” neural activity in the CA3 region during training? To address this issue, we targeted local inactivation of the MFTF region in a post‐training, consolidation paradigm. Male Wistar rats, bilaterally implanted with chronic indwelling cannulae aimed at the MFTF CA3 region, were trained on a hidden platform water maze task (10 trials per day for 5 days). Immediately after the 10th trial on each training day, rats were injected with lidocaine (4% w/v; 171 mM; n =7) or phosphate‐buffered saline (PBS; n = 7). Behavioral measures of latency, path length, and thigmotaxis were recorded, as was directional heading. A retention test (probe trial) was given 7 days after the last training day, and brains were subsequently processed for MFTF distribution (Timm's stain) and cannula location. Lidocaine treatment was found to block the learning‐associated structural remodeling of the MFTF that was reported previously and observed in the PBS‐injected controls. During training, the lidocaine group showed elevated latencies and a misdirected heading to locate the platform on the first trial of each training day. On the 7‐day retention probe trial, the lidocaine‐injected group showed poor retention indicated by the absence of a search bias in the area where the platform had been located during training. These data suggest that the reduction of neuronal activity in the CA3 region impairs long‐term storage of spatial information. As this was associated with reduced MFTF structural remodeling, it provides initial anatomical and behavioral evidence for an activity—dependent, presynaptic growth model of memory. © 2010 Wiley‐Liss, Inc.
Differences in hippocampal protein levels between C57Bl/6J, PWD/PhJ, and Apodemus sylvaticus are paralleled by differences in spatial memory
Authors: Patil Sudarshan S. , Boddul Sanjay V. , Schlick Konstantin , Kang Sung Ung , Zehetmayer Sonja , Höger Harald , Lubec Gert 
Published: April 2010

AbstractThere is a significant strain‐dependent performance in the Morris water maze (MWM), a paradigm for the evaluation of spatial memory. In contrast, information on molecular differences that may be responsible for differences in spatial memory performance is limited. The aim of the study was therefore to investigate differences in hippocampal protein levels in three groups with different performance in the MWM. C57BL/6J (inbred laboratory strain), PWD/PhJ (inbred strain derived from wild animals of Mus musculus), and Apodemus sylvaticus (AS, genus Apodemus) mice were used for the experiments. Proteins from hippocampi, obtained from a behavioral study on these animals, were extracted and run on two‐dimensional gel electrophoresis. Proteins spots were quantified, and spots with significantly different levels were identified by mass spectrometry using an ion trap. A series of 49 proteins from different pathways and cascades (signaling, neuronal network, protein synthesis, secretion and degradation, and antioxidant system; intermediary, fat, and carbohydrate metabolism) were significantly different among hippocampi at the stringent statistical level of P ≤ 0.001. These findings are paralleled by differences in the spatial navigation abilities between the strains within the species Mus musculus (C57BL/6 vs. PWD/PhJ) and between the genera Mus and Apodemus. As shown previously, AS learned the task in the MWM and showed good memory retention when tested at the probe trial (day 12), whereas C57BL/6J learned the task, but failed at the probe trial at day 12 as well as PWD/PhJ that failed to learn the task and failed at the probe trial at day 12. A list of above‐mentioned proteins were different between PWD/PhJ with bad and AS with good memory retention and may therefore be related to performance in the MWM and thus to spatial memory formation. The experimental approach, however, does not allow discriminating between differences in protein levels a priori and different protein levels induced by the MWM testing. © 2010 Wiley‐Liss, Inc.
Chronic psychosocial stress accelerates impairment of long‐term memory and late‐phase long‐term potentiation in an at‐risk model of Alzheimer's disease
Authors: Tran Trinh T. , Srivareerat Marisa , Alkadhi Karim A. 
Published: April 2010

AbstractAlthough it is generally agreed that Aβ contributes to the pathogenesis of AD, its precise role in AD and the reason for the varying intensity and time of onset of the disease have not been elucidated. In addition to genetic factors, environmental issues such as stress may also play a critical role in the etiology of AD. This study examined the effect of chronic psychosocial stress in an at‐risk (treatment with a subpathogenic dose of Aβ; “subAβ”) rat model of AD on long‐term memory by three techniques: memory tests in the radial arm water maze, electrophysiological recordings of synaptic plasticity in anesthetized rats, and immunoblot analysis of learning‐ and long‐term memory‐related signaling molecules. Chronic psychosocial stress was induced using a rat intruder model. The subAβ rat model of AD was induced by continuous infusion of 160 pmol/day Aβ1–42 via a 14‐day i.c.v. osmotic pump. All tests showed that subAβ rats were not different from control rats. Result from behavioral tests and electrophysiological recordings showed that infusion of subAβ in chronically stressed rats (stress/subAβ group) caused significant impairment of cognitive functions and late‐phase long‐term potentiation (L‐LTP). Molecular analysis of various signaling molecules after expression of L‐LTP, revealed an increase in the levels of p‐CREB in control, stress, and subAβ rats, but not in the stress/subAβ rats. These findings suggest that the chronic stress‐induced molecular alteration may accelerate the impairment of cognition and synaptic plasticity in individuals “at‐risk” for AD. © 2010 Wiley‐Liss, Inc.
Estimation of absorption of aromatic hydrocarbons diffusing from interior materials in automobile cabins by inhalation toxicokinetic analysis in rats
Authors: Yoshida Toshiaki 
Published: April 2010

AbstractAromatic hydrocarbons, as well as aliphatic hydrocarbons, diffusing from interior materials in automotive cabins are the most common compounds contributing to interior air pollution. In this study, the amounts of seven selected aromatic hydrocarbons absorbed by a car driver were estimated by evaluating their inhalation toxicokinetics in rats. Measured amounts of these substances were injected into a closed chamber system containing a rat, and the concentration changes in the chamber were examined. The toxicokinetics of the substances were evaluated on the basis of the concentration–time course using a nonlinear compartment model. The amounts absorbed in humans at actual concentrations in automobile cabins without ventilation were extrapolated from the results obtained from rats. The absorbed amounts estimated for a driver during a 2 h drive were as follows (per 60 kg of human body weight): 30 µg for toluene (interior median concentration, 40 µg m−3 in our previous study), 10 µg for ethylbenzene (12 µg m−3), 6 µg for o‐xylene (10 µg m−3), 8 µg for m‐xylene (11 µg m−3), 9 µg for p‐xylene (11 µg m−3), 11 µg for styrene (11 µg m−3) and 27 µg for 1,2,4‐trimethylbenzene (24 µg m−3). Similarly, in a cabin where air pollution was marked, the absorbed amount of styrene (654 µg for 2 h in a cabin with an interior maximum concentration of 675 µg m−3) was estimated to be much higher than those of other substances. This amount (654 µg) was approximately 1.5 times the tolerable daily intake of styrene (7.7 µg kg−1 per day) recommended by the World Health Organization. Copyright © 2010 John Wiley & Sons, Ltd.