<Original Article> Age-Related Changes in the Spontaneous Motor Activity during the Dark Phase in the Male Mouse

Spontaneous motor activity was studied in first generation (F1) hybrid C57BL/6 x C3H male mice at the ages of 6, 18 and 36 months. Activity was recorded for 10 consecutive hours during the dark phase, using a capacitance-induction motility monitor. The recordings were taken simultaneously at 2 levels of sensitivity; total activity (T) for the fine and gross movements and large activity (L) for the gross movements. The data were measured in 1 hour intervals and then stored on discs for micro-computer analysis. The T activity decreased with age. Changes in the mean hourly scores of T and L activity with time during the 10 hour dark phase differed among the 3 age groups. The results suggest that spontaneous motor activity during the dark phase is a useful parameter of changes in the motor function in aged mice.journal articl

Structural and optical characterization of CdS films grown by photochemical deposition

CdS thin films are grown by photochemical deposition from an aqueous solution and characterized by x-ray diffraction (XRD), Raman spectroscopy, photoluminescence measurement, and optical transmission spectroscopy. The films are deposited at room temperature and annealed at temperatures up to 500°C. The as-deposited film is dominantly zinc blende cubic. The cubic phase remains dominant until the annealing temperature becomes higher than 400°C. By the annealing at 450°C, the XRD pattern turns to that of hexagonal phase. Moreover, its peak width decreases and the near-band-edge luminescence begins to be observed. The band gap is decreased by annealing below 400°C and then abruptly increased by the annealing at 450°C. This annealing behavior of the band gap is interpreted considering the quantum size effects, the band tail due to disorder, and the cubic-hexagonal transition.application/pdfjournal articl

地形･市街地の特性と阪神・淡路大震災における建物被害 : 神戸市東灘区を事例とした地理学的分析

application/pdf大阪府立大学紀要（人文・社会科学）. 1997, 45, p.55-67departmental bulletin pape

Measurement of the e+e-→D(*)+D(*)- cross sections

journal articl

A study of regional innovation: Shifting to the endogenous development paradigm

application/pdfThe paradigm shifting from extraneous development to endogenous development is one of the cogent ways to make the regional innovation. Littleton, Colorado, known for its “Economic Gardening” program, is a good example among all. Ise, Japan can make such innovation by making the better use of the Ise Jingu, one of the most beloved religious tourist destinations in Japan. The three key factors of making such paradigm shift are an autonomy in the local finance, the strong leadership of the civic leaders and the existence of region- specific special resources.departmental bulletin pape

Single-shot photoacoustic imaging with single-element transducer through a spatiotemporal encoder

Current photoacoustic (PA) imaging modalities typically require either serial detection with a single-element transducer or parallel detections with an ultrasonic array, indicating a dilemma between system cost and imaging throughput. Photoacoustic topography through ergodic relay (PATER) was recently developed to address this bottleneck. However, PATER requires object-specific calibration due to varied boundary condition, and must be re-calibrated through pointwise scanning for each object before measurements, which is time-consuming and severely limits practical application. Here, we develop a new method, photoacoustic imaging through a spatiotemporal encoder (PAISE), which is capable of single-shot widefield PA imaging with a single-element transducer, and does not require object-specific calibration. We validated PAISE through comprehensive numerical simulations and experiments, and demonstrated that PAISE can image different objects with a single calibration. Together, these results highlight the potential of PAISE for significant impact in both scientific research and clinical applications

ランドマーク データベース オ モチイタ トウヒョウ ニ モトズク セイシ ガゾウ カラノ カメライチ・シセイ スイテイ

奈良先端科学技術大学院大学修士(工学)master thesi

[[(<i>tert</i>-Butyl)dimethylsilyl]oxy]methyl Group for Sulfur Protection

Aromatic and aliphatic thiols can be protected by reaction with t-BuMe2SiOCH2Cl in DMF in the presence of a base (2,6-lutidine or proton sponge); the resulting t-BuMe2SiOCH2SR or t-BuMe2SiOCH2SAr are deprotected by sequential treatment with Bu4NF and I2 to give symmetrical disulfides. Another mode of deprotection involves reaction with a sulfenyl chloride; this process gives an unsymmetrical disulfide and was examined with Me(CH2)11SCH2OSiMe2Bu-t and three sulfenyl chlorides

Fe₃O₄–Graphite Composites as a Microwave Absorber with Bimodal Microwave Absorption

Microwave absorption in the low-frequency region is a major challenge in the development of carbon-based absorbers. Fe3O4–graphite composites with both low-frequency region and high-frequency region absorption were prepared through a facile solvothermal method. The electromagnetic properties and impedance matching characteristics of the samples were regulated by changing the dosage of graphite. Interestingly, an excellent bimodal microwave absorption (MA) performance was obtained when the molar ratio of iron and graphite was 3:10 (Fe3O4–2PG). With the optimal matching thickness of 4 mm, the Fe3O4–2PG sample shows good performances with respect to the effective absorption bandwidth of 3.3 GHz; the minimum reflection loss (RLmin) in C-band (4–8 GHz) is −40.6 dB, and its RLmin in Ku-band (12–18 GHz) is −29.82 dB. The good bimodal MA performance of Fe3O4–2PG could be attributed to the synergistic effects and interfacial polarization between Fe3O4 nanoparticles and graphite. Furthermore, Fe3O4–2PG and Fe3O4–1PG have electromagnetic absorption peaks in both the C-band and Ku-band, which broaden the absorption band of electromagnetic waves, which is beneficial to solve the problem of 5 G electromagnetic radiation. Therefore, the research results have special significance for the radiation interference of 5 G technology and the shielding absorption of C-band radar waves

Formation of Carbocycles by Intramolecular Conjugate Displacement: Scope and Mechanistic Insights

A detailed study has been made of a method of ring closure categorized as an all-carbon intramolecular conjugate displacement (ICD). This reaction involves intramolecular addition of a carbanion, which is stabilized by at least one electron-withdrawing group, to a Michael acceptor which has a leaving group in an allylic position. The process formally resembles a combination of Michael addition and SN2′ displacement. The overall result is formation of a ring with loss of the allylic leaving group and shift of the original double bond to a new location spanning the positions of the electron-withdrawing substituent of the Michael acceptor subunit and the original allylic leaving group. The starting materials are easily prepared by a selenium-based version of the Morita−Baylis−Hillman reaction. The cyclizations are transition metal free and occur under mild conditions, using DBU or Cs2CO3 in MeCN or THF. Acetate is a suitable leaving group and the electron-withdrawing substituent of the Michael acceptor unit can be CO2R, SO2Ph, or CN. Six- and seven-membered rings are formed efficiently, and complex structures, such as those resembling the core of CP-225,917, are easily assembled. The products of these ICD reactions are themselves classical Michael acceptors. A range of mechanisms probably operates, depending on the structure of the starting material and the reaction conditions, but conclusive evidence for a stepwise mechanism was obtained in a suitably biased case, while other observations are compatible with a concerted process or a stepwise path involving a short-lived carbanion that evades capture by a proton source