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  • A.M. BRITTO, C. SAVVIDOU, M.J. GUNN, J.R. BOOKER
    土質工学会論文報告集
    1992年 32 巻 1 号 13-25
    発行日: 1992/03/15
    公開日: 2008/02/29
    ジャーナル フリー
    One method currently being considered for the disposal of high level radio-active waste is burial in the seabed. When a hot object is buried in soil, the temperature of the soil adjacent to the object is raised and there is transient heat flow away from the object. The rise in the temperature of the soil causes excess pore pressures to be generated and transient pore water diffusion also takes place. A finite element formulation of the coupled heat flow and consolidation problem is presented. The computer implementation of this formulation is found to compare favourably with analytical solutions based on the same physical principles.
  • 黒川 美貴雄, 吉田 耕治, 永井 保嵩, 宇野 準
    Chemical and Pharmaceutical Bulletin
    1983年 31 巻 12 号 4312-4318
    発行日: 1983/12/25
    公開日: 2008/03/31
    ジャーナル フリー
    Two new partially saturated tricyclic ring systems, 6, 6a,
    7
    , 8,
    9
    , 10, 10a, 11-octahydro-11-oxodibenz [
    b
    ,
    e
    ] oxepins (3a and 3
    b
    ), and -thiepins (4a and 4
    b
    ) were synthesized. Compounds 4a and 4
    b
    were desulfurized to give a pair of isomeric 2-methylbenzoylcyclohexanes (10a and 10
    b
    ). Deuterated 4a and 4
    b
    (11a and 11
    b
    ) were prepared starting from butadiene-d6 (12). The stereochemical features of 3a (trans), 3
    b
    (cis), 4a (trans) and 4
    b
    (cis) are compared with those of 10a, 10
    b
    , 11a and 11
    b
    on the basis of proton nuclear magnetic resonance data.
  • 和田 昭盛, 平石 佐栄子, 伊藤 允好
    Chemical and Pharmaceutical Bulletin
    1994年 42 巻 3 号 757-759
    発行日: 1994/03/15
    公開日: 2008/03/31
    ジャーナル フリー
    Stereoselective synthesis of
    7
    E
    ,
    9
    E
    - and
    7
    E
    ,
    9
    Z-β-ionylideneacetaldehydes was accomplished from the β-ionone tricarbonyl iron complex, and the latter was converted to
    9
    Z-retinoic acid.
  • 黒川 美貴雄, 糸川 彰, 松本 純一, 福本 吉久, 月原 冨武
    Chemical and Pharmaceutical Bulletin
    1992年 40 巻 9 号 2270-2274
    発行日: 1992/09/25
    公開日: 2008/03/31
    ジャーナル フリー
    11-Amino-6, 6a,
    7
    , 8,
    9
    , 10, 10a, 11-octahydrodibebenzo[
    b
    ,
    e
    ]thiepines (6a-d) and -oxepines (
    7
    a-d) were synthesized by the Leuckart reaction of 6, 6a,
    7
    , 8,
    9
    , 10, 10a, 11-octahydro-11-oxodibenzo[
    b
    ,
    e
    ]thiepines (1a,
    b
    )and -oxepines (2a,
    b
    ) followed by hydrolysis of the reaction products 4a-d and 5a-d, respectively. The four diastereomers, cis(6a-H, 10a-H)-cis(10a-H, 11-H) 6a and
    7
    a, cis(6a-H, 10a-H)-trans(10a-H, 11-H) 6
    b
    and
    7
    b
    , trans(6a-H, 10a-H)-trans(10a-H, 11a-H)6c and
    7
    c, and trans(6a-H, 10a-H)-cis(10a-H, 11-H) 6d and
    7
    d, were isolated and their configurations and conformations were elucidated by chemical methods together with 1H-nuclear magnetic resonance spectroscopic and X-ray crystallographic analyses.
  • Joey
    B
    . Tanney, Leonard J. Hutchison
    Mycoscience
    2012年 53 巻 1 号 31-35
    発行日: 2012年
    公開日: 2023/03/31
    ジャーナル オープンアクセス

    The ability of Climacodon septentrionalis to immobilize and kill a mycophagous nematode (Aphelenchoides sp.) in vitro is described for the first time. Two isolates produced droplets (20–45 μm in diameter) that formed at the apices of tall, stalked, and branching secretory cells (700–1,500 μm tall). On 2% modified malt extract agar, nematodes became enveloped in the droplets, which restricted their ability to move and resulted in complete immobilization and death within several hours of contact. The rate of decomposition of the nematodes varied considerably, with most individuals persisting for weeks whereas others were degraded within several days and appeared to be colonized by dense hyphal growth. This study provides the first documentation of a non-agaricoid fungus producing secretory cells that are able to immobilize nematodes.

  • 村上 孝夫, 木村 毅, 和田 浩志, 田中 信寿, 斎木 保久, 陳 秋明
    Chemical and Pharmaceutical Bulletin
    1981年 29 巻 3 号 866-868
    発行日: 1981/03/25
    公開日: 2008/03/31
    ジャーナル フリー
    From the fronds of Polystichum tripteron (KUNZE) PR. a new norcarotenoid glycoside was isolated and shown to be (6R,
    7
    E
    ,
    9
    R)-
    9
    -hydroxy-megastigma-4,
    7
    -dien-3-one-
    9
    -O-β-D-glucoside. The fronds of Dennstaedtia wilfordii (MOORE) CHRIST. contain the same glucoside.
  • 小田切 孝人, 田代 眞人
    ウイルス
    2013年 63 巻 2 号 233-240
    発行日: 2013/12/25
    公開日: 2014/10/31
    ジャーナル フリー
  • M. L. GHOSH
    Journal of Physics of the Earth
    1972年 20 巻 2 号 165-186
    発行日: 1972年
    公開日: 2009/04/30
    ジャーナル フリー
    The possibility of attenuation of microseismic waves due to the presence of an upward folding of the ocean bottom into the liquid is discussed in this paper. The upward folding of the ocean bottom has been idealized by means of an irregularity in the form of a rectangle intruding into the liquid and the evaluation of the displacement component at any point of the solid medium has been carried out in two stages. First, the change in the incident mode of the surface wave due to the presence of the rectangular irregularity has been determined, and second, the subsequent change of the resulting displacement components due to the termination of the liquid layer and the step change in elevation of the solid medium at the continental margin has been discovered. Finally, numerical calculation has been made to determine the attenuation of the microseismic waves of different periods due to the presence of the rectangular irregularity at the ocean bottom.
  • 香山 滉一郎, 森下 政夫, 張 国鋒
    粉体および粉末冶金
    2006年 53 巻 5 号 419-429
    発行日: 2006年
    公開日: 2006/12/19
    ジャーナル オープンアクセス
    The phase diagrams of the Ni-Mo-
    B
    and Ni-W-
    B
    ternary systems in the region of less than 50mol%
    B
    were constructed by thermodynamic calculation, based on the data obtained by thermodynamic measurement of the related materials. We found three ternary eutectic points and three or two ternary peritecto-eutectic points as follows:
    E1
    :L (1365K, 71.5mol%Ni-6.
    0
    mol%Mo-
    22
    .5mol%
    B
    )=(Ni)+
    Ni3B
    +
    NiMo2B2

    E2
    :L (1355K, 62.5mol%Ni-2.5mol%Mo-30.5mol%
    B
    )=
    Ni3B
    +
    Ni2B
    +
    NiMo2B2

    E3
    :L (1445K, 42.
    0
    mol%Ni-30.6mol%Mo-10.3mol%
    B
    )=(Ni)+NiMo+
    NiMo2B2

    P1:L (1812K, 34.
    9
    mol%Ni-42.3mol%Mo-
    22
    .8mol%
    B
    )+MoB=
    Mo2B
    +
    NiMo2B2

    P2:L (1633K, 42.3mol%Ni-40.4mol%Mo-17.3mol%
    B
    )+Mo=
    Mo2B
    +
    NiMo2B2

    P3:L (1812K, 53.5mol%Ni-33.
    7
    mol%Mo-12.8mol%
    B
    )+Mo=NiMo+
    NiMo2B2

    E1
    :L (1622K, 51.
    0
    mol%Ni-31.6mol%W-17.4mol%
    B
    )=(Ni)+W+
    NiW2B2

    E2
    :L (1260K, 71.
    0
    mol%Ni-
    7
    .
    0
    mol%W-
    22
    .
    0
    mol%
    B
    )=(Ni)+
    Ni3B
    +
    NiW2B2

    E3
    :L (1291K, 65.4mol%Ni-4.8mol%W-29.8mol%
    B
    )=
    Ni2B
    +
    Ni3B
    +
    NiW2B2

    P1:L (2115K, 23.8mol%Ni-43.1mol%W-33.1mol%
    B
    )+WB=
    W2B
    +
    NiW2B2

    P2:L (1657K, 48.
    9
    mol%Ni-33.1mol%W-18.
    0
    mol%
    B
    )+
    W2B
    =W+
    NiW2B2

    The calculated phase diagrams are expected to be useful for the development of new Ni-based heat-, corrosion- or wear-resistance alloys.
  • 増大する資源
    E
    . F. Boswell
    紙パ技協誌
    1998年 52 巻 7 号 885-889
    発行日: 1998/07/01
    公開日: 2009/11/19
    ジャーナル フリー
    The world is in the midst of a huge fundamental shift in fibre supply, demand balances, and policy changes. Governments around the world are introducing policy changes which influence the supply demand balance as the politicians' thoughts are uttered. Government agencies and their bureaucrats are imposing changes on industry even before the legislation is passed by the government in question.
    This ad hoc change process will continue for a time to come until the countries in question show a tough-mindedness with regard to their land use policies. Policies affecting forest areas such as protection areas, Native land claims, the protection of biodiversity and a true goal of sustainable development ; which addresses the combined issues of cultural, environmental, social and economic matters.
    Eventually all of these difficult issues will reach essential closure. Then there will be great new opportunities for investment to meet the growing demand for forest products ; leading to a strengthening competitive position in the more traditional producing areas such as Canada.
  • Özkan ASLANTAŞ, Ebru Şebnem YILMAZ
    Journal of Veterinary Medical Science
    2017年 79 巻 6 号 1024-1030
    発行日: 2017年
    公開日: 2017/06/16
    [早期公開] 公開日: 2017/04/27
    ジャーナル フリー

    This study aimed to determine the prevalence of fecal carriage of extended spectrum β-lactamase (ESBL) and/or plasmidic AmpC β-lactamase (pAmpC) producing Escherichia coli among dogs (n=428) in Turkey. Polymerase chain reaction (PCR) and sequencing were used to characterize genes encoding β-lactamase and plasmid mediated quinolone resistance (PMQR). Antimicrobial susceptibility testing and PCRs for virulence genes and phylogenetic groups were also performed. Cefotaxime resistant

    E
    . coli isolates were detected in 95 (
    22
    .2%) of the swab samples. Sequencing analysis results showed occurrence of various β-lactamase genes: blaCTX-M-15 (62), blaTEM-
    1b
    (42), blaCMY-2 (
    22
    ), blaCTX-M-3 (16), blaCTX-M-1 (15), blaOXA-1 (
    9
    ) and blaSHV-12 (3) alone or in combination. The most frequently encountered phylogenetic group was group A1 (35.8%), followed by group D2 (
    22
    .1%),
    B
    1 (15.8%), D1 (
    9
    .5%),
    A0
    (
    7
    .4%),
    B22
    (5.3%) and
    B23
    (4.2%), respectively. PMQR genes, aac(6’)-Ib-cr, qnrS1 and qnrB10 were detected in 25.3, 10.5 and 1.1% of the isolates, respectively. While all isolates were susceptible to imipenem and amikacin, resistance rates to non-β-lactam antibiotics ranged from 20.
    0
    % for tobramycin to 56.8% for tetracycline. The virulence genes were only detected in 34 (36.2%) of the isolates and this isolates carried single or various combination of virulence genes of iucD, papC, papE, f17a-A and eaeA. Four isolates were identified as human virulent pandemic CTX-M-15 producing
    E
    . coli
    clone O25
    b
    :ST131/
    B
    2. To the best of our knowledge, this is the first study to show fecal carriage of ESBL/pAmpC type β-lactamase producing
    E
    . coli
    isolates among dogs in Turkey.

  • 小林 優, 神田 扶由子, S. M. D. Kumar, Ch. V. Lakshmana Rao, D. Srinivasa Rao, D. Venkata Rao, C. Bheemasankara Rao
    天然有機化合物討論会講演要旨集
    1990年 32 巻 20
    発行日: 1990/09/25
    公開日: 2017/08/18
    会議録・要旨集 フリー
    Melithasterols A-D (1-4), isolated from a gorgoinan coral Melithaea ocracea of Okinawa, were shown to be cholestane-, 24-methyl-
    22
    -dehydrocholestane-,
    22
    -dehydrocholestane-, and 24-methylenecholestane-derivatives. respectively, having a common 3β,
    7
    α -dihydroxy-5α, 6α-epoxy-Δ^8 steroid nucleus. This was confirmed by direct comparison with the authentic sample prepared by lead tetra-acetate oxydation of cholest-6-ene- 3β, 5α, 8α-triol 3-monoacetate. Twelve new polyhydroxysterols were isolated from an Alcyonium sp. (
    7
    ,8,
    9
    ), and Sclerophytum sp. (14,16,19
    b
    ,20,21,
    22
    a,23,26,28) soft corals collected off the coasts of the Andaman and Nicobar Islands in the Indian Ocean. All the Sclerophytum sp. soft corals contained 17a or its 25-deacetyl derivative. Compounds
    7
    to
    9
    were identified as 24-methylenecholest-5-ene- 3β, 16β-diol-3-
    0
    -α-L fucoside (
    7
    ) and its
    7
    β-(8) and
    7
    α-hydroxy (
    9
    ) derivatives. Compound 14 was shown to be 24S-24-methylcholest-5-ene-3β,25ξ,26-triol and was correlated to the known compound 15 by 5α, 6β-glycolation. Compound 16 was shown to be 5β, 6α-isomer of 17
    b
    , correlating to 17
    b
    by PCC oxidation followed by dehydration. Compound 19
    b
    was identified with 25-deacetyl derivative of the known compound lobosterol (19a) by hydrolysis of authentic lobosterol. Compounds 20 and 21 were shown to be
    7
    -dehydro-(20) and
    22
    E
    -dehydro-(21) derivative of 17a and 17
    b
    , respectively, by comparisons of their spectral data with reference compounds. Compounds
    22
    a and 23 were 24S-methylcholestane-3β, 5α 25-triol-6-one 25-monoacetate (
    22
    a) and its 25-deacetoxyl derivative (23). Partial PCC oxidation of 17a afforded
    22
    a. Compounds 26 (andamansterol) and 28 (nicobarsterol) were shown to be gorgost-5-ene-3β,
    9
    α. 11α, 21-tetrol and novel secosteroid, 11,21-cyclo-
    B
    -homo-11-oxa-
    9
    , 11-secoergostane-3β, 6α, 12ξ-triol-
    9
    -one, respectively, by spectral analyses (H-HCOSY, HMQC, HMBC).
  • 田尻 要, 中山 洋, 今泉 繁良
    土質工学会論文報告集
    1992年 32 巻 2 号 159-168
    発行日: 1992/06/15
    公開日: 2008/02/29
    ジャーナル フリー
  • 泌尿器科領域における臨床分離株と環境分離株に関する疫学的検討
    鎌田 日出男
    日本泌尿器科學會雑誌
    1979年 70 巻 10 号 1142-1158
    発行日: 1979/10/20
    公開日: 2010/07/23
    ジャーナル フリー
    1) P. aeruginosa has been consistently isolated from 26.5 to 42.4% of the patients with urinary tract infections in the urological ward of Okayama University Hospital for the past
    7
    years. 232 (
    22
    .3%) out of 1042 hospitalized patients were with urinary tract infections with P. aeruginosa for past 4 years. Of these, 149 (64.2%) were thought to be the catheter induced urinary tract infections. The mode of spreading of this organism was epidemiologically investigated.
    2) The following three laboratory assays were used for identification of P. aeruginosa isolated from clinical and environmental strains; serological typing, antibiotic sensitivity and protease and elastase production. Serological typing with 13 immunodiagnostic sera (Toshiba Chemical Industry) was performed by slide agglutination method. Protease and elastase production were detected by the method described by Goto et al.
    In combination with serological typing and antibiograms, protease and elastase production offers the finest means of differentiating the strains of P. aeruginosa.
    3) Of 136 clinical strains of P. aeruginosa,
    89
    .
    7
    % were serotypable strains. Serotype K was the most prevalent (36.
    0
    %), followed by serotype
    E
    (28.
    7
    %), F (10.3%) and A (
    7
    .4%). Most of serotype F and
    B
    which were concurrently isolated from patients in 1976 had the same patterns of antibiogram and production of protease and elastase. It was strongly suggested that these patients were nosocomially cross-infected with the P. aeruginosa from the catheterization or through instrumentation.
    4) Of 354 environmental specimens, 78 P. aeruginosa (
    22
    .8%) were isolated, which were frequently isolated from floor mops and sink-drains. Of these strains, 87.2% were serotypable strains. Serotype
    E
    was the most prevalent (42.3%), followed by serotype K (24.4%) and
    B
    (12.8%). The same strains were seldom detected at the same sources successively, but different types of P. aeruginosa were usually detected. Among the serotypes
    E
    , F and K, 18 strains (23.1%) were identical with the clinical strains. All of these were found during or after the clinical outbreaks of P. aeruginosa infections. There was no environmental strains that caused clinical infections. The other 60 strains (76.
    9
    %) were different from the clinical strains, and present only transiently in the hospital environments.
    5) Both clinical and environmental strains similary produced protease and elastase at 70 to
    80
    %, hemolysin at 100%. Only 10 out of 37 environmental strains (27.
    0
    %) were found to produced exotoxin.
  • Yasuyuki Gono, Manabu Fujioka, Tamotsu Toriyama
    Journal of the Physical Society of Japan
    1970年 29 巻 2 号 255-258
    発行日: 1970/08/05
    公開日: 2007/06/01
    ジャーナル 認証あり
    The gamma-ray spectrum and the conversion-electron spectrum are measured in the decay of the Tb152 activity. The L-subshell electron lines of the 586.
    7
    keV
    22
    +→21+ transition are separated by the ion-free beta-ray spectrometer. The M1-
    E
    2 mixing ratio, δ2, and the dimensionless ratio X of
    E
    0
    -
    E
    2 mixing of the 586.
    7
    keV transition are obtained to be δ2
    0
    .16 and
    0
    .034≤X
    0
    .038, respectively. The
    E
    2 branching ratio
    B
    (
    E
    2;
    22
    +→
    0g
    +):
    B
    (
    E
    2;
    22
    +→21+):
    B
    (
    E
    2;
    22
    +→01+) is determined to be
    0
    .023 : 1.
    0
    : 5.6.
  • 佐野 隆一, 鈴木 教敬, 堀 三郎, 藤井 豊, 及川 真一, 阿部 隆三, 豊田 隆謙, 後藤 由夫
    動脈硬化
    1985年 13 巻 4 号 955-959
    発行日: 1985/10/01
    公開日: 2011/09/21
    ジャーナル フリー
    Various serum lipid levels (hypo-, normo- and hyper-cholesterolemic) are shown in dys-β-lipoproteinemia (-LP). Though type III hyper-LP (hypercholesterolemic dys-β-LP) is characterized by abnormal lipid composition of VLDL and elevaied level of apolipoprotein
    E
    (apo
    E
    ), diagnosis of normo- and hypo-cholesterolemic dys-β-LP are offenly difficult. At the present study, we established simple and sensitive methods to diagnose dys-β-LP only by measurement of serum apolipoproteins. In purpose to define new approach for diagnosis of dys-β-LP, serum apo
    B
    , apo C-II, apo C-III and apo
    E
    levels were determined by the method of single radial immunodiffusion. These apolipoproteins were analysed in subjects with dys-β-LP (n=
    7
    ), hyper-LP (n=67) and normo-LP (n=41). A serum apo
    E
    /apo C-III ratio in dys-β-LP was 1.37±
    0
    .59 (mean±SD). This value was significantly higher than the ratios among normo-LP (
    0
    .45±
    0
    .17), type IIa (
    0
    .51±
    0
    .11), type IIb (
    0
    .45±
    0
    .17), type IV (
    0
    .45±
    0
    .13) and type V (
    0
    .47±
    0
    .
    22
    ). A serum apo
    E
    /apo
    B
    (×100) ratio in dys-β-LP was 25.2±10.2. This value was also significantly higher than the ratios among normo-LP (4.4±1.5), type IIa (4.
    0
    ±
    0
    .
    9
    ), type IIb (4.
    7
    ±1.
    9
    ), type IV (
    7
    .2±3.1) and type V (15.5±5.
    9
    ). Based on these data, it is proposed that the apo
    E
    /apo C-III ratio of >1.
    0
    was diagnostic value of type III and the apo
    E
    /apo
    B
    (×100) ratio of >10.
    0
    was also diagnostic value of normo- and hypo-cholesterolemic dys-β-LP. As to determine serum apolipoproteins very simple by single radial immunodiffusion method, the ratios will be useful for diagnosis and detection of dys-β-LP in clinical and epidemiological studies.
  • ―特にアポ蛋白Eの変化について―
    本間 康彦, 三神 美和, 佐藤 美智子, 石原 仁一, 吉川 広, 木下 栄治, 田川 隆介, 星合 充基, 古屋 秀夫, 井出 満, 田辺 晃久, 玉地 寛光, 兼本 成斌, 友田 春夫, 中谷 矩章, 五島 雄一郎
    動脈硬化
    1984年 12 巻 3 号 599-603
    発行日: 1984/08/01
    公開日: 2011/09/21
    ジャーナル フリー
    Seven hundred fifty mg of cholesterol were fed daily to 32 patients of the ischemic heart disease (IHD) for 2 weeks. Cholesterol amounts in VLDL, LDL, HDL, HDL2 and HDL3 were estimated on the
    0
    th,
    7
    th and 14th days of cholesterol load. Plasma apoprotein A-I, A-II,
    B
    , C-II,
    E
    levels were also measured in 16 from 32 IHD subjects. Apoprotein levels were estimated by a method of single radial immunodiffusion (SRID). Before cholesterol administration, cholesterol amounts in VLDL, LDL, HDL, HDL2 and HDL3 were 15.
    9
    ±
    7
    .5mg/dl (mean±SD), 150.
    9
    ±58.1mg/dl 43.8±
    9
    .6mg/dl, 16.4±5.8mg/dl and 24.
    9
    ±6.3mg/dl respectively. Plasma apoprotein A-I, A-II,
    B
    , C-II and
    E
    levels were 81.
    7
    ±
    22
    .
    0
    mg/dl, 15.1±5.4mg/dl, 93.
    7
    ±36.
    0
    mg/dl, 3.83±1.00mg/dl and 4.29±1.36mg/dl respectively. After 2 weeks' cholesterol feeding, all plasma lipoprotein cholesterol and apoprotein levels did not change significantly. Correlation coefficients between plasma apoprotein and lipoprotein cholesterol levels were calculated. Apoprotein A-I and A-II correlated with HDL-C (r=
    0
    .348), HDL2-C (r=
    0
    .612) and HDL3 (r=
    0
    .569). Apoprotein
    B
    correlated with total cholesterol (TC) (r=
    0
    .610), VLDL-C (r=
    0
    .341), LDL-C (r=
    0
    .726), HDL-C (r=
    0
    .432) and HDL2-C (r=
    0
    .465). Apoprotein C-II correlated with TC (r=
    0
    .765), TG (r=
    0
    .679), VLDL-C (r=
    0
    .651), LDL-C (r=
    0
    .461) and HDL2-C (r=
    0
    .326). Apoprotein
    E
    correlated with TC (r=
    0
    .580), TG (r=
    0
    .575) and VLDL-C (r=
    0
    .666). Interapoprotein's correlations were also calculated. Apoprotein A-I correlated with apoprotein A-II (r=
    0
    .468). Apoprotein
    B
    correlated with apoprotein C-II (r=
    0
    .393). Apoprotein C-II correlated with apoprotein
    B
    (r=
    0
    .393) and
    E
    (r=
    0
    .549). Apoprotein
    E
    only correlated with apoprotein C-II (r=
    0
    .549).
  • Jun HAYASHI, Seizaburo KASHIWAGI, Hideyuki IKEMATSU, Hideyuki NOMURA, Wataru KAJIYAMA, Akinori NOGUCHI, Kiyoshi IKEDA
    MICROBIOLOGY and IMMUNOLOGY
    1988年 32 巻 8 号 843-850
    発行日: 1988年
    公開日: 2008/03/17
    ジャーナル フリー
    We investigated sex- and age-specific prevalences of hepatitis
    B
    e
    antigen (HBeAg) and antibody to HBeAg (anti-HBe) in 1, 163 carriers of hepatitis
    B
    surface antigen (HBsAg) in Okinawa, Japan, and followed them up for longer than one year in correlation with liver function abnormalities. Elevated serum transaminase levels were found in 160 (13.8%) of them. The prevalence of liver function abnormalities was significantly higher in male carriers (127/690, 18.4%) than in female carriers (33/473,
    7
    .
    0
    %) at a P value of
    0
    .001. In asymptomatic carriers, the prevalence of HBeAg was 13.2% and that of anti-HBe
    80
    .
    0
    %, significantly different from 41.
    9
    % and 54.4%, respectively, in carriers with elevated transaminase levels (P<
    0
    .001). In asymptomatic carriers, the mean age of HBeAg-positive carriers was 16.
    7
    years which was much lower than the
    22
    .8 years in carriers with liver function abnormalities. The prevalence of elevated transaminase levels was significantly higher in carriers with HBeAg than in those with anti-HBe (33.8% vs.
    9
    .
    7
    %, P<
    0
    .001). Based on these results, the prolonged positivity for serum HBeAg would qualify as a predictor for deteriorating liver function among HBsAg carriers.
  • Tariq F. Alghazzawi
    Journal of Prosthodontic Research
    2017年 61 巻 3 号 305-314
    発行日: 2017年
    公開日: 2017/09/12
    ジャーナル オープンアクセス

    Purpose: The purpose of this study was to determine if the optical properties of zirconia and glass–ceramic (

    e
    .max) were affected by low-temperature degradation (aging).

    Methods: Experiment samples were fabricated with seven zirconia brands (n=10): Zenostar, Zirlux, Katana, Bruxzir, DD-BioZX2, DD-cubeX2, NexxZr; and

    e
    .max were used as a control. This resulted in a total of
    80
    samples in the experiment. The L*, a* and
    b
    * were measured for each sample, and then the optical properties including translucency parameter (TP), contrast ratio (CR), and opalescence parameter (OP) were calculated. The samples were aged (20, 40, 60,
    80
    , 100h), and the optical properties were calculated after each interval.

    Results: Most zirconia brands had lower L*, higher a*, higher

    b
    * with increased aging, which visually corresponds to darker, redder, and more yellow. Aging also increased CR, lowered TP, and lowered OP.
    e
    .max was also affected by aging but still had the highest TP (23.
    9
    ±2.8), L* (81.
    7
    ±3.4), and lowest CR (
    0
    .41±
    0
    .05) compared to any zirconia. The Zenostar had the closest TP (24.1±
    0
    .4), and L* (90.2±
    0
    .5) values to
    e
    .max before aging. However, after 100h of aging, the DD-cubeX2 was least effected and had the highest TP (
    22
    .2±
    0
    .6) and lowest CR (
    0
    .43±
    0
    .01) compared with other zirconia samples and highest OP (11.3±
    0
    .2) of all ceramic samples.

    Conclusions: The optical properties of zirconia and

    e
    .max materials were affected by aging with the effects increasing with time. The magnitude of change was affected by seven brands of dental zirconia.

  • 伊藤 大介
    日本物理学会講演概要集
    1997年 52.2.1 巻 22a-E-9
    発行日: 1997/09/02
    公開日: 2018/03/04
    会議録・要旨集 フリー
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