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      • KCI등재

        Dosimetric comparison of axilla and groin radiotherapy techniques for high-risk and locally advanced skin cance

        Malcolm D. Mattes,Ying Zhou,Sean L. Berry,Christopher A. Barker 대한방사선종양학회 2016 Radiation Oncology Journal Vol.34 No.2

        Purpose: Radiation therapy targeting axilla and groin lymph nodes improves regional disease control in locally advanced and high-risk skin cancers. However, trials generally used conventional two-dimensional radiotherapy (2D-RT), contributing towards elatively high rates of side effects from treatment. The goal of this study is to determine if three-dimensional conformal radiation therapy (3D-CRT), intensity-modulated radiation therapy (IMRT), or volumetric-modulated arc therapy (VMAT) may improve radiation delivery to the target while avoiding organs at risk in the clinical context of skin cancer regional nodal irradiation. Materials and Methods: Twenty patients with locally advanced/high-risk skin cancers underwent computed tomography simulation. The relevant axilla or groin planning target volumes and organs at risk were delineated using standard definitions. Paired t-tests were used to compare the mean values of several dose-volumetric parameters for each of the 4 techniques. Results: In the axilla, the largest improvement for 3D-CRT compared to 2D-RT was for homogeneity index (13.9 vs. 54.3), at the expense of higher lung V20 (28.0% vs. 12.6%). In the groin, the largest improvements for 3D-CRT compared to 2D-RT were for anorectum Dmax (13.6 vs. 38.9 Gy), bowel D200cc (7.3 vs. 23.1 Gy), femur D50 (34.6 vs. 57.2 Gy), and genitalia Dmax (37.6 vs. 51.1 Gy). IMRT had further improvements compared to 3D-CRT for humerus Dmean (16.9 vs. 22.4 Gy), brachial plexus D5 (57.4 vs. 61.3 Gy), bladder D5 (26.8 vs. 36.5 Gy), and femur D50 (18.7 vs. 34.6 Gy). Fewer differences were observed between IMRT and VMAT. Conclusion: Compared to 2D-RT and 3D-CRT, IMRT and VMAT had dosimetric advantages in the treatment of nodal regions of skin cancer patients.

      • SCIESCOPUSKCI등재

        Fertility of Holstein Cows in Chengdu, China

        Zi, X.D.,Ma, L.,Zhou, G.Q.,Chen, C.L.,Wei, G.M. Asian Australasian Association of Animal Productio 2003 Animal Bioscience Vol.16 No.2

        Data on the use of breeding records of dairy cattle farm of Fenghuang-shan in Chengdu areas during a period of six years is systematically analyzed. The results show that Holstein heifers have their 1st estrus at an average age of $513.6{\pm}46.7$ d which is not related to the calving season. Estrus mostly occurs in the months with mild ambient temperature (March, April, May, November and December). There is a very poor rate of estrus detection; only 30.0% successive estrus is observed within 24 d, 29.3% within 25-48 d, 40.6% over 48 d. The average number of insemination per conception is 1.50 for heifers and 1.74 for cows, but conception rate (CR) is lower in the relatively warm months (July, August and September) ranged from 48.1% to 51.9% compared with 58.1% to 68.5% in other months. High temperature is the most important factor affecting fertilization in warm months, but neither did CR decline immediately with the increased air temperature in June, nor did it increase immediately with the declined air temperature in September. Post partum anestrous period is $119.5{\pm}60.5$ d. The average interval from calving to conception is $159.4{\pm}85.6$ d with only 19.8% of the cows conceived within 85 d of calving. Cows with high milk yield have longer acyclic periods and lower conception rates. Improvement of efficient managements must be a precedent condition in Chengdu areas.

      • Emergence and Persistence of NS5A and NS3 Resistance-Associated Substitutions in HCV Genotype 1b Patients Treated with Daclatasvir and Asunaprevir

        ( F. Mcphee ),( D. Hernandez ),( N. Zhou ),( F. Yu ),( B. Kienzle ),( Y. Zhao ),( M. Linaberry ),( S. Noviello ),( M. L. Yu ),( S. H. Ahn ),( Y. Karino ),( K. Chayama ),( H. Kumada ) 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1

        Aims: A pooled analysis of emergent RAS was performed in HCV genotype (GT-)1b-infected patients receiving daclatasvir and asunaprevir (DCV+ASV) and the persistence of DCV- and ASV-resistant substitutions through ≥post-treatment Week (PTWK)192 was assessed to understand the RAS profile and help guide potential retreatment options. Methods: HCV GT-1b-infected patients without a sustained virologic response (SVR) and with HCV RNA ≥1000 IU/mL on or after DCV+ASV treatment were included from 5 Phase 2 and 3 studies. Baseline and post-baseline plasma samples were sequenced at a sensitivity cut-off ł20%. To determine the persistence of emergent RAS, samples at the end of study (up to PTWK48) and/or from a 3-year long-term follow-up rollover study were sequenced (sensitivity cut-off ≥20%, and ≥1% for select samples). Results: 152 DCV+ASV-treated patients without SVR met the resistance testing criteria: 89% (136/152) had NS5A and 95% (145/152) had NS3 sequences at both baseline and virologic failure (VF). NS5A and NS3 RAS emerged in 99% (134/136) and 89% (129/145), respectively, at VF (Table). Overall, 93% (142/152) of patients with VF had both NS5A and NS3 sequence data at failure, of which 77% (109/142) had RAS at L31, Y93 and D168. Emergent NS5A RAS persisted at PTWK96 (92%;24/26) and ≥PTWK192 (100;7/7compared with 22% (6/27) and 14% (1/7), respectively, for emergent NS3 RAS. Replacement of emergent NS5A and NS3 RAS observed at VF occurred in 8% (2/26) of NS5A and 74% (17/23) of NS3 sequences at PTWK96 and in 0% (0/7) of NS5A and 86% (6/7) of NS3 sequences at ≥PTWK192. Conclusions: NS5A and NS3 RAS emerged in most patients treated with DCV+ASV who experienced VF, and NS5A RAS persisted post-treatment. Therapy options for DCV+ASV treatment failures may depend on the timing of retreatment: an NS3 inhibitor-containing regimen may be possible if NS3 RAS are no longer observed, while regimens not impacted by the NS5A-L31+Y93 and NS3-D168 RAS combination would offer an immediate alternative.

      • SCISCIESCOPUS

        Separation dynamics of hydrogen isotope gas in mesoporous and microporous adsorbent beds at 77 K: SBA-15 and zeolites 5A, Y, 10X

        Chu, X.Z.,Cheng, Z.P.,Xiang, X.X.,Xu, J.M.,Zhao, Y.J.,Zhang, W.G.,Lv, J.S.,Zhou, Y.P.,Zhou, L.,Moon, D.K.,Lee, C.H. Pergamon Press ; Elsevier Science Ltd 2014 International journal of hydrogen energy Vol.39 No.9

        The separation of a hydrogen isotope mixture on porous materials was studied using equilibrium and breakthrough experiments. The adsorption equilibria of H<SUB>2</SUB> and D<SUB>2</SUB> on SBA-15 with mesopores and molecular sieves 5A, Y, and 10X with micropores were measured at 77 K using the volumetric method. The breakthrough experiments of a H<SUB>2</SUB> and D<SUB>2</SUB> mixture in each adsorbent bed were carried out at various conditions of flow rate and pressure. The equilibrium ratio of D<SUB>2</SUB> to H<SUB>2</SUB> on mesoporous molecular sieves was larger than the ratio on microporous molecular sieves (SBA-15 > 10X > Y > 5A), but the difference among the adsorbents decreased with increases in pressure. On the other hand, the order of breakthrough separation factor showed the opposite result (SBA-15 < 10X < Y < 5A). The breakthrough separation factors for zeolite 10X was approximately equal to the equilibrium ratio of D<SUB>2</SUB> to H<SUB>2</SUB> at the corresponding partial pressures, whereas zeolites 5A and Y showed higher breakthrough separation factors than their equilibrium ratios. In SBA-15, the separation factors from breakthrough results were even smaller than the corresponding equilibrium ratio. In the microporous adsorbent with a limited pore size (zeolite 5A in the study), the diffusion mechanism contributed to the separation of hydrogen isotope gases as one of key factors.

      • KCI등재

        Legacy transmission through fashion films: Visual and narrative brand heritage integration

        Paloma Díaz Soloaga,Dominguez Gemma Muñoz,Zhou Jing 한국마케팅과학회 2023 Journal of Global Fashion Marketing Vol.14 No.4

        On this research, we analyze how fashion houses transmit the spirit of the brands, convey the values that constitute their identity and show their heritage through fashion films. High end luxury brands with a long heritage such as Dior and Chanel, use audiovisual narratives fashion films, a form of visual and artistic communication, where the content establishes an emotional relationship between brand and customers and recreates the origins of the brand. Authors primarily selected, classified, and analyzed all fashion films that Chanel and Dior had published on YouTube, and then study a series of represen- tative samples selected from all those contents created by fashion brands. Based on the number of views, likes and comments of each video, it is possible to see the interaction between the brand and the audience and the engagement among the different fashion films. It also delves into the key of the brand to unearth the inheritance and tradition of its origin, trying to record the history of “Maison” to reach a wider audience and convey a series of values to new digital con- sumers. The combination of heritage and vitality through digital activities is oriented to deliver values that have a significant impact on the audience.

      • SCISCIE

        <i>δ</i> Sct-type pulsations in eclipsing binary systems: Y Cam

        Rodrí,guez, E.,Garcí,a, J. M.,Costa, V.,Lampens, P.,van Cauteren, P.,Mkrtichian, D. E.,Olson, E. C.,Amado, P. J.,Daszyń,ska-Daszkiewicz, J.,Turcu, V.,Kim, S.-L.,Zhou, A. Y.,,p Blackwell Publishing Ltd 2010 MONTHLY NOTICES- ROYAL ASTRONOMICAL SOCIETY Vol.408 No.4

        <P>ABSTRACT</P><P>We present the results of a three-continent multisite photometric campaign carried out on the Algol-type eclipsing binary system Y Cam, in which the primary component is a multiperiodic δ Sct-type pulsator. The observations consist of 86 nights and more than 450 h of useful data collected mainly during the Northern winter 2002–2003. This means that this is the most extensive time series for such kind of systems obtained so far. These observations were collected mostly in the Johnson V filter, but they also include, for the first time, nearly complete binary light curves in simultaneous Strömgren <I>uvby</I> filters together with a few Crawford Hβ data obtained around the orbital phase of the first quadrature. A detailed photometric analysis is presented for both binarity and pulsation. The results indicate a semidetached system with the secondary filling its Roche lobe. No significant contribution from a third body is found. The residuals from the computed binary solution were then used to investigate the pulsational content of the primary component. The frequency analysis of the out-of-primary-eclipse data leads to a set of eight significant and independent pulsational peaks in a well-defined region of the frequency domain. This means that this is the largest set of excited modes discovered so far in the pulsating component of such kind of systems. The possibility of aliasing problems during the present run or short-term time-scale amplitude variations in some of them was investigated with null results. Indeed the results indicate that <I>f</I><SUB>1</SUB> and <I>f</I><SUB>3</SUB> form a frequency doublet with a beat period of <I>P</I><SUB>beat</SUB>= 17.065 d. Our results confirm the frequencies already detected by earlier authors and show the presence of some additional significant peaks. The observed amplitudes during the present run are also consistent with those derived from older data sets. We perform a preliminary mode identification for most of the frequencies on the basis of the collected multicolour photometry, the observed frequency spacings and the mode visibility in eclipsing binaries.</P>

      • SCOPUSKCI등재

        Dosimetric comparison of axilla and groin radiotherapy techniques for high-risk and locally advanced skin cancer

        Mattes, Malcolm D.,Zhou, Ying,Berry, Sean L.,Barker, Christopher A. The Korean Society for Radiation Oncology 2016 Radiation Oncology Journal Vol.34 No.2

        Purpose: Radiation therapy targeting axilla and groin lymph nodes improves regional disease control in locally advanced and high-risk skin cancers. However, trials generally used conventional two-dimensional radiotherapy (2D-RT), contributing towards relatively high rates of side effects from treatment. The goal of this study is to determine if three-dimensional conformal radiation therapy (3D-CRT), intensity-modulated radiation therapy (IMRT), or volumetric-modulated arc therapy (VMAT) may improve radiation delivery to the target while avoiding organs at risk in the clinical context of skin cancer regional nodal irradiation. Materials and Methods: Twenty patients with locally advanced/high-risk skin cancers underwent computed tomography simulation. The relevant axilla or groin planning target volumes and organs at risk were delineated using standard definitions. Paired t-tests were used to compare the mean values of several dose-volumetric parameters for each of the 4 techniques. Results: In the axilla, the largest improvement for 3D-CRT compared to 2D-RT was for homogeneity index (13.9 vs. 54.3), at the expense of higher lung $V_{20}$ (28.0% vs. 12.6%). In the groin, the largest improvements for 3D-CRT compared to 2D-RT were for anorectum $D_{max}$ (13.6 vs. 38.9 Gy), bowel $D_{200cc}$ (7.3 vs. 23.1 Gy), femur $D_{50}$ (34.6 vs. 57.2 Gy), and genitalia $D_{max}$ (37.6 vs. 51.1 Gy). IMRT had further improvements compared to 3D-CRT for humerus $D_{mean}$ (16.9 vs. 22.4 Gy), brachial plexus $D_5$ (57.4 vs. 61.3 Gy), bladder $D_5$ (26.8 vs. 36.5 Gy), and femur $D_{50}$ (18.7 vs. 34.6 Gy). Fewer differences were observed between IMRT and VMAT. Conclusion: Compared to 2D-RT and 3D-CRT, IMRT and VMAT had dosimetric advantages in the treatment of nodal regions of skin cancer patients.

      • Relationship Between ACE Insertion/Deletion Genotype, Telomere Length and Diabetes Mellitus Type Ii

        ( Yu Ling Zhou ),( Ya Xin Lu ),( Herbert Jelinek ),( Hassan Assareh ),( Craig S Mclachlan ),( Brett D Hambly ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

        Background: Telomere length has been used as a surrogate biomarker for biological aging. Chronic diseases, i.e. Type 2 Diabetes mellitus (DMT2), resulting in infl ammation have been reported to shorten telomere length. The deletion allele of the angiotensin- converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism has been associated with infl ammation and susceptibility and severity of DMT2. We aimed to examine the interactions of ACE I/D genotype and DMT2 on telomere length. Methods: A total of 195 healthy controls and 80 patients with DMT2 were recruited from the Charles Sturt University Diabetes Screening Research Initiative in Australia. We measured leukocyte telomere length (LTL) by monochrome multiplex quantitative PCR and genotyped ACE I/D polymorphism by PCR and electrophoresis. Multivariate linear regression was used to determine the relationship between telomere length and ACE I/D genotype, covariates controlled for diabetic status. Results: Total population data demonstrated ACE DD or ID genotype carriers have longer mean LTL (1.091 and 1.095, respectively) than II genotype carriers (1.063, P=0.036). When stratifi ed on the basis of diabetes or no diabetes, a signifi cant increase in LTL was maintained in control subjects, but not in the DMT2 subjects. In control subjects, mean relative LTL for DD plus ID carriers is 1.090 and II carriers is 1.043 (P=0.009). In DMT2 patients, the mean relative LTL of samples carrying at least one D allele is 1.089 and II genotype carriers is 1.083 (P=0.868). In control but not DMT2 patients, female gender is associated with longer relative LTL (1.103, P=0.010). Conclusions: The II genotype is associated with shorter telomere length in a control population, but this association is lost in DMT2 patients. These findings support a hypothesis that ACE DD or ID genotype increases telomere length but that diabetes mellitus status alters this effect.

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