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Risa Yamada(Risa Yamada ),Takeshi Fujii(Takeshi Fujii ),Kotaro Hattori(Kotaro Hattori ),Hiroaki Hori(Hiroaki Hori ),Ryo Matsumura(Ryo Matsumura ),Tomoko Kurashimo(Tomoko Kurashimo ),Naoko Ishihara(Nao 대한정신약물학회 2023 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.21 No.2
Objective: This study aimed to determine if the discrepancy between depression severity rated by clinicians and that reported by patients depends on key behavioral/psychological features in patients with mood disorders. Methods: Participants included 100 patients with mood disorders. First, we examined correlations and regressions between scores on the Hamilton Depression Rating Scale (HAMD) and Beck Depression Inventory (BDI). Second, we divided the participants into those who provided 1) greater ratings for the BDI compared with the HAMD (BDI relative- overrating, BO) group, 2) comparable ratings for the BDI and HAMD (BDI relatively concordant, BC) group, or 3) less ratings for the BDI (BDI relative-underrating, BU) group. Adverse childhood experiences, autistic-like traits, and coping styles were evaluated with a six-item short version of the Childhood Trauma Questionnaire (CTQ-6), the Social Responsiveness Scale for Adults (SRS-A), and the Ways of Coping Checklist (WCCL), respectively. Results: A significant correlation was found between HAMD and BDI scores. Total and emotional abuse subscale scores from the CTQ-6, and the self-blame subscale scores from the WCCL were significantly higher for the BO group compared with the BU group. The BO group also elicited significantly higher SRS-A total scores than did the other groups. Conclusion: These findings suggest that patients with adverse emotional experiences, autistic-like traits, and self-blame coping styles perceive greater distress than that evaluated objectively by clinicians. The results indicate the need for inclusion of subjective assessments to effectively evaluate depressive symptoms in patients deemed to have these psycho- behavioral concerns.
Evaluation of 131I (monoiodide) BSP for Clinical Studies
Ueda, Hideo,Iro, Masahiro,Kurata, Kunio,Yamada, Hideo,Iwase, Tohru,Migita, Tohru,Kameda, Haruo,Kato, Sadatake,Sato, Noboru,Ide, Kazuko,Wakebayashi, Takao 대한핵의학회 1971 핵의학 분자영상 Vol.5 No.1
"In 1925 Rosenthal and White introduced a bromosulfophthalein (BSP) dye retention test as a sensitive indicator of liver function. Even now it is regared as one of the most sensitive agents for the detection of non-icteric liver disease (liver cirrhosis, early stage of acute-hepatitis and hepatic tumor). BSP accumulates in the liver cells, conjugates with glutathione and is excreted into the bile. Therefore, a disorder in its excretion is due to a disturbance of one of these processes. Since bilirubin and BSP compete for uptake by the liver and increased serum bilirubin interferes with the colorimetric determination of BSP, it has been considered that BSP test is inappropriate for the differential diagnosis of jaundice conditions. It has been generally said that when jaundice is present, the BSP test is useless and should not be performed. In 1955, Taplin et al. labeled rose bengal, a dye similarly metabolized in the liver as BSP, with 131I and measured the hepatic excretion of this dye by external monitoring. Laster, Blahd et al. applied this method to the determination of the peripheral pool, succeeding in the diagnosis of chronic and subacute hepatic diseases without colorimetry. In 1968, Yamada, Taplin et al. suggested the possibility of differentiating so-called medical jaundice from surgical jaundice by scanning the subjects during 24 to 48 hours following intravenous injection of 131I-labeled rose bengal. As mentioned before, many authorities hold the opinion that BSP is not proper for the differential diagnosis of jaundice states. Some have tried to diagnose biliary tract obstruction by a malignant tumor by measuring BSP excretion into duodenal fluid and others by quantitating changes in serum levels of conjugated and free BSP. Furthermore, Burton et al. reported that in patients with extrahepatic obstructive jaundice, BSP retention was observed for 24 days after its administration. From a consideration of all these finding we came to a conclusion that the differential diagnosis of various jaundice states, (medical, surgical and constitutional) is possible by sequential scanning with radioisotope-labeled BSP, as with rose bengal, in accordance with procedures described by Yamada, Taplin et al. The evidence suggested that labeled BSP might make a more important contribution than rose bengal. "
Yamada, Yoichi,Kuklin, Artem V.,Sato, Sho,Esaka, Fumitaka,Sumi, Naoto,Zhang, Chunyang,Sasaki, Masahiro,Kwon, Eunsung,Kasama, Yukihiko,Avramov, Pavel V.,Sakai, Seiji Elsevier 2018 Carbon Vol.133 No.-
<P><B>Abstract</B></P> <P>We report the scanning tunneling microscope (STM) observation of the Li<SUP>+</SUP> ion endohedral C<SUB>60</SUB> on Cu(111), prepared by means of evaporation of a high-purity Li<SUP>+</SUP>@C<SUB>60</SUB>[PF<SUB>6</SUB> <SUP>−</SUP>] salt. The electronic state of Li<SUP>+</SUP>@C<SUB>60</SUB> in the Li<SUP>+</SUP>@C<SUB>60</SUB>[PF<SUB>6</SUB> <SUP>−</SUP>] salt was also determined using photoemission and X-ray absorption spectroscopy, along with the density functional theory (DFT) calculations. In the salt, Li and PF<SUB>6</SUB> had nearly single positive and negative charge, respectively; thus the C<SUB>60</SUB> cage was practically neutral. The salt decomposed under ultra-high vacuum while heating at 400 °C. This allowed the selective deposition of Li<SUP>+</SUP>@C<SUB>60</SUB> on Cu(111). Although secondary-ion mass spectroscopy of the deposited Li<SUP>+</SUP>@C<SUB>60</SUB> film showed a decrease in the Li-content during evaporation, Li<SUP>+</SUP>@C<SUB>60</SUB> was successfully identified using STM. The DFT calculations of Li<SUP>+</SUP>@C<SUB>60</SUB> on Cu(111) suggested that the Li<SUP>+</SUP> ion was singly charged and the location of the Li<SUP>+</SUP> ion was displaced in an upward direction, which altered the local density of states in an upper section of C<SUB>60</SUB>, especially for LUMO+2. The calculated results were mostly in agreement with the bias-dependent STM and dI/dV images. However, an inconsistency was observed between the calculation and experiments in case of empty state imaging where tip-induced displacement of the Li<SUP>+</SUP> ion may occur.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Yamada, Sunao,Niidome, Yasuro,Hinoguchi, Takeshi Korean Society of Photoscience 2000 Journal of Photosciences Vol.7 No.1
An alternately assembled polycation-anionic dye film was prepared on a precursor assembly of poly(allylamine)hydrochloride (PAH) and poly(sodium styrenesulfonate) (PSS) or of poly (djallyldimethyl)ammonium chloride (PDDA) and PSS. The (PAH/PSS) precursor assembly gave better adsorptivity to the anionic dye than the (PDDA/PSS) one. Four kinds of anionic dyes (EB-T, AR-17 AR-18, AR-27) with different numbers of sulfonate substituents were compared. The extent of dye assembling was higher for the dye with a smaller number of sufonate substituents. Second harmonic generation (SHG) was clearly observed from the films. The SHG signal and the absorption intensity correlated well up to four polycation/dye bilayers, while further assembly did not increase the SHG signal appreciably. Second order nonlinear coefficients for ten bilayer assemblies were the order of pm/V.
Synthesis and photochemical properties of α-diketoporphyrins as precursors for π-expanded porphyrins
Yamada, Hiroko,Kuzuhara, Daiki,Ohkubo, Kei,Takahashi, Tetsuro,Okujima, Tetsuo,Uno, Hidemitsu,Ono, Noboru,Fukuzumi, Shunichi The Royal Society of Chemistry 2010 Journal of materials chemistry Vol.20 No.15
<p>A new α-diketoporphyrin and the corresponding Pd complex were prepared from the monoanthroporphyins and their photochemical properties were investigated by measurements of absorption and emission spectra, fluorescence lifetimes, laser flash photolysis, cyclic voltammetry, and theoretical calculations. Intramolecular electron transfer from the porphyrin singlet excited state to the diketone moiety was observed for the free base α-diketoporphyrin in benzonitrile, but this was not observed in toluene. Photoreactivity of the α-diketoporphyrins was also examined by irradiation at the Soret and Q bands. When the Soret band of the freebase α-diketoporphyrin was irradiated, cleavage of the diketone moiety occurred to afford the monoanthroporphyrin with the release of two CO molecules quantitatively in both benzonitrile and toluene. When the Q band of the freebase α-diketoporphyrin was irradiated, no photocleavage reaction occurred in toluene. In contrast to the freebase α-diketoporphyrin, the photocleavage reaction of the Pd complex occurred with irradiation at the Q band as well as the Soret band to afford the monoanthroporphyrin quantitatively in toluene. The photocleavage reaction proceeded much more effectively in toluene than in benzonitrile. The occurrence of rapid photoinduced electron transfer from the singlet excited state porphyrin to the diketone moiety, which was detected by femtosecond laser flash photolysis measurements, results in a significant decrease in the singlet excited state lifetime, prohibiting the photocleavage reaction in benzonitrile. Thus, the Pd α-diketoporphyrin can act as an excellent precursor for the corresponding acene in toluene. The photocleavage process provides a convenient and inexpensive method to make the thin film.</p> <P>Graphic Abstract</P><P>A new α-diketoporphyrin and its Pd complex were prepared and successfully converted into the corresponding monoanthroporphyins by photoirradiation of the porphyrin moieties with release of two CO molecules quantitatively. <img src='http://pubs.rsc.org/ej/JM/2010/b923220f/b923220f-ga.gif'> </P>
The Requirements on statistical techniques in QS-9000
YAMADA, Shu 한국품질경영학회 2000 The Asian Journal on Quality Vol.1 No.1
QS-9000 was established by Chrysler, Ford, General Motors and some Truck Manufactures to solve problems of efforts to prepare original standards for each company. When we compare the requirements in QS-9000 with those in ISO 9000, we may observe that those of QS-9000 are more specific, since the user of the standard is limited to the automobile industry. In particular, the requirements on statistical techniques are described in more detail. In this paper, we present the requirements on statistical techniques in QS-9000. Specifically, we review the contents of QS-9000 and explore the philosophy and the minimum requirement on statistical techniques behind the description.
SURFACES IN 4-DIMENSIONAL SPHERE
Yamada, Akira Korean Mathematical Society 1996 대한수학회지 Vol.33 No.1
Met $\tilde{M} = (\tilde{M}, \tilde{J}, <>)$ be an almost Hermitian manifold and M a submanifold of $\tilde{M}$. According to the behavior of the tangent bundle TM with respect to the action of $\tilde{J}$, we have two typical classes of submanifolds. One of them is the class of almost complex submanifolds and another is the class of totally real submanifolds. In 1990, B. Y. Chen [4], [5] introduced the concept of the class of slant submanifolds which involve the above two classes. He used the Wirtinger angle to measure the behavior of TM with respect to the action of $\tilde{J}$.
Yamada, Atsushi,Takami, Masamichi,Kawawa, Tadaharu,Yasuhara, Rika,Zhao, Baohong,Mochizuki, Ayako,Miyamoto, Yoichi,Eto, Tomoo,Yasuda, Hisataka,Nakamichi, Yuko,Kim, Nacksung,Katagiri, Takenobu,Suda, Tat Blackwell Publishing Ltd 2007 Immunology Vol.120 No.4
<P>Summary</P><P>Interleukin (IL)-4 and IL-13 are closely related cytokines known to inhibit osteoclast formation by targeting osteoblasts to produce an inhibitor, osteoprotegerin (OPG), as well as by directly targeting osteoclast precursors. However, whether their inhibitory actions are the same remains unclear. The inhibitory effect of IL-4 was stronger than that of IL-13 in an osteoclast-differentiation culture system containing mouse osteoblasts and osteoclast precursors. Both cytokines induced OPG production by osteoblasts in similar time- and dose-dependent manners. However, IL-4 was stronger in direct inhibition that targeted osteoclast precursors. Furthermore, IL-4 induced phosphorylation of signal transducer and activator of transcription-6 (STAT6) at lower concentrations than those of IL-13 in osteoclast precursors. IL-4 but not IL-13 strongly inhibited the expression of nuclear factor of activated T-cells, cytoplasmic 1 (nuclear factor-ATc1), a key factor of osteoclast differentiation, by those precursors. Thus, the activities of IL-4 and IL-13 toward osteoclast precursors were shown to be different in regards to inhibition of osteoclast differentiation, whereas those toward osteoblasts for inducing OPG expression were equivalent.</P>