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Qian,,Ying-Ying,Liu,,Xin-You,Wu,,Qian,Song,,Xian,Chen,,Xiao-Feng,Liu,,Yi-Qian,Pei,,Dong,Shen,,Li-Zong,Shu,,Yong-Qian Asian Pacific Organization for Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.19
Background: Although the predictive value of the excision repair cross-complementing group 1 (ERCC1) C118T polymorphism in clinical outcomes of patients with colorectal cancer (CRC) receiving oxaliplatin-based chemotherapy has been evaluated in numerous published studies, the conclusions are conflicting. Therefore, we performed the present meta-analysis to determine the precise role of the ERCC1 C118T polymorphism in this clinical situation and help optimize individual chemotherapy. Materials and Methods: A multiple search strategy was used to identify eligible studies. Pooled odds ratios (ORs) and their 95% confidence intervals (CIs) were used to estimate objective response and oxaliplatin-induced toxicity, with hazard ratios (HRs) with 95%CIs for progression-free survival (PFS) and overall survival (OS). Results: A total of 22 studies including 2,846 CRC patients were eligible in the analysis. Overall, no significant correlation was found between the ERCC1 C118T polymorphism and objective response to oxaliplatin-based chemotherapy, in all patients or in the Asian and Caucasian subgroups. However, the pooled analysis showed that the PFS and OS were significantly shorter in patients who carried T/T or T/C genotypes of ERCC1 C118T as compared to the C/C genotype. On stratified analysis by ethnicity, the ERCC1 118T allele was associated with a favorable prognosis in Caucasians (PFS, HR=0.58, 95%CI: 0.24-1.44; OS, HR=0.38, 95%CI: 0.22-0.64) but an unfavorable prognosis in Asians (PFS, HR=2.49, 95%CI: 1.87-3.33; OS, HR=2.63, 95%CI: 1.87-3.69) based on a dominant model. In addition, we failed to find a statistically significant impact of ERCC1 C118T polymorphism on oxaliplatin-induced toxicity. Conclusions: The ERCC1 C118T polymorphism may have prognostic value in patients with CRC undergoing oxaliplatin-based chemotherapy.
Qian,,Ying-Ying,Liu,,Xin-You,Pei,,Dong,Xu,,Jia-Li,Shen,,Hua,Chen,,Xiao-Feng,Liu,,Yi-Qian,Shen,,Li-Zong,Shu,,Yong-Qian Asian Pacific Organization for Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.22
Background: The predictive value of the xeroderma pigmentosum group D (XPD) Lys751Gln polymorphism regarding clinical outcomes of patients with colorectal cancer (CRC) receiving oxaliplatin-based chemotherapy has been evaluated in numerous published studies, but the results remain inconclusive. Therefore, we performed a meta-analysis to determine the precise role of the XPD Lys751Gln polymorphism in this clinical situation and optimize individual chemotherapy. Materials and Methods: A multiple search strategy was used to identify eligible studies. Pooled odds ratios (ORs), generalized odds ratio (ORG) and their 95% confidence intervals (CIs) were used to estimate the objective response, while hazard ratios (HRs) with 95%CIs were used for progression-free survival (PFS) and overall survival (OS). Results: A total of 17 studies including 2,286 patients met the inclusion criteria. Overall, the XPD 751Gln allele was associated with a non-significant reduced objective response to oxaliplatin-based chemotherapy in all patients or in the Asian and Caucasian subgroups. However, poor PFS and OS of CRC patients treated with oxaliplatin-based regimens were significantly related to the XPD 751Gln allele in the dominant model (PFS: HR=2.10, 95%CI: 1.65-2.67; OS: HR=3.18, 95%CI: 1.57-6.47). On stratified analysis by ethnicity, these relationships were more pronounced in Asians (PFS: HR=2.49, 95%CI: 1.79-3.47; OS: HR=5.25, 95%CI: 3.46-7.94) than in Caucasians (PFS: HR=1.73, 95%CI: 1.22-2.46; OS: HR=1.78, 95%CI: 1.06-2.99). Conclusions: The XPD Lys751Gln polymorphism may have prognostic value in patients with CRC undergoing oxaliplatin-based chemotherapy.
Qian Qian Lee Young Seob Lee(이영섭), Seon Min Oh(오선민), Dam Hee Kang(강담희), Da Hye Yoon(윤다혜), Doo Jin Choi(최두진), Dae Young Lee(이대영), Kyung Sook Han(한경숙), Geum Soog Kim(김금숙), Dong Hwi Kim(김동휘), Dong Yeul Kwon(권동열), ) 한국약용작물학회 2020 한국약용작물학회 학술대회논문집 Vol.28 No.1
풋콩(Glycine max (L.) Merrill) 6개 품종의 자엽절 절편체로부터 thidiazuron(TDZ)과 NAA 농도를 달리한 배지에서 신초의 효율적인 재분화를 조사한 후, 가장 효과가 좋은 생장조절물질 조합으로 배지 종류, 접종방법 및 품종별 신초 재분화율을 조사하였다. 또한 절편체를 배지에 수직 또는 수평으로 치상하는 방법과 B5, 1/2 B5, MS, 1/2 MS, MSB(MS salts + B5 organics) 등의 5가지 기본 배지에 관하여 시험하였다. B5 배지에 1㎎?L<SUP>-1</SUP> TDZ, 0.05㎎?L<SUP>-1</SUP> NAA, 5㎎?L<SUP>-1</SUP> AgNO₃를 첨가한 처리에서 6개 품종의 신초 재분화율이 55.3-88.9%로 높았다. ‘L?ling No. 1'의 경우 수직으로 치상하는 것이 수평으로 치상하는 것보다 신초 재분화율이 37.5% 더 높았다. 따라서 풋콩은 TDZ를 처리한 B5 배지에 자엽절을 수직으로 치상할 때 신초 재분화율이 높았다. To establish a highly efficient system for shoot regeneration in vegetable soybean (Glycine max (L.) Merrill), explants were obtained from six genotypes and adventitious shoots were regenerated from cotyledonary nodes cultured on medium supplemented with different concentrations of N-phenyl-N′-1, 2, 3-thiadiazol-5-ylurea (thidiazuron TDZ) and 1-naphthylacetic acid (NAA). The most effective combination of plant growth regulators was selected first and then the effects of medium types, inoculation methods and genotypic differences on shoot regeneration were studied. The explants were inserted either vertically or horizontally into the medium and five basal media, including B5, ½ B5, MS, ½ MS, and MSB (MS salts and B5 organics), were tested. The shoot regeneration frequency of the six genotypes ranged from 53.5% to 88.9% and three of them reached 88.9%, 87.5% and 83.3%, respectively, on B5 medium supplemented with 1 ㎎?L<SUP>-1</SUP> TDZ, 0.05 ㎎?L<SUP>-1</SUP> NAA, and 5 ㎎?L<SUP>-1</SUP> AgNO₃. The shoot regeneration frequency of explants cultured on B5 medium was significantly higher than that of the other four basal media. The vertically inserted explants were found to yield a higher shoot regeneration frequency than that of horizontally inserted ones; the maximum difference of regenerating percentages between the two methods was 37.5%. In summary, TDZ was an efficient plant growth regulator for shoot induction. B5 medium and vertically inserted explants promoted shoot regeneration. We believe this highly efficient shoot regeneration system will provide foundation for the further transgenic studies in vegetable soybean.
Qian Qian Lee Young Seob Lee(이영섭), Seon Min Oh(오선민), Da Hye Yoon(윤다혜), Doo Jin Choi(최두진), Dae Young Lee(이대영), Kyung Sook Han(한경숙), Geum Soog Kim(김금숙), Dong Hwi Kim(김동휘), Dong Yeul Kwon(권동열), Ok Hwa Kang(강옥화) 한국약용작물학회 2020 한국약용작물학회 학술대회논문집 Vol.28 No.1
In this paper, we consider one-shot systems comprise one-shot devices and support equipments. The one-shot devices are stored for long periods of time, and its failure is detected only upon inspection. Support equipments are necessary for the operation of one-shot devices, and are maintained immediately upon failure. This paper deals with an inspection schedule problem for one-shot systems with support equipment and limited maintenance resources. Interval availability and life cycle costs are used as optimization criteria, and are estimated by simulation. Therefore, we aim to determine near-optimal inspection intervals of one-shot systems that minimize the expected life cycle cost and satisfy the target interval availability during inspection periods. An estimation of distribution algorithm (EDA) is proposed to find near-optimal solutions, and numerical examples are studied to investigate the effects of various model parameters.
Acid-soluble (ASC) and pepsin-soluble collagen (PSC) from scales of croceine croaker (ASCPC and PSC-PC) and redlip croaker (ASC-PP and PSC-PP) were prepared with yields of 0.37±0.08% (ASCPC), 1.09±0.23% (PSC-PC), 0.42±0.09% (ASC-PP), and 1.14±0.30% (PSC-PP) (dry scale basis). Gly (347.1- 359.8 residues/1,000 residues) was the major amino acid. Contents of imino acid were between 189.4 and 192.9 residues/1,000 residues in all 4 collagens. ASC-PC and ASC-PP were type I collagens. Differences in subunit components between ASC and PSC were observed. Denaturation temperature values of ASC-PC, ASC-PP, PSC-PC, and PSC-PP were 30.7, 30.1, 27.5, and 26.6℃, respectively. All 4 collagens were soluble at pH 1-4. Values declined when NaCl concentrations exceeded 2%. Freeze-dried collagens showed loose, fibrous, and porous structures. The 4 scale collagens can be alternatives to collagen from terrestrial animals for applications in functional food, cosmetic, and biomedical industries.