http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Expression of anaphase-promoting complex7 in fibroadenomas and phyllodes tumors of breast
Kang, Yup,Kim, Jang Hee,Lee, Tae Hui,Kim, Tai Seung,Jung, Woo Hee,Chung, Hyun Cheol,Park, Byeong Woo,Sheen, Seung Soo,Han, Jae Ho Elsevier 2009 Human pathology Vol.40 No.1
<P><B>Summary</B></P><P>The proteolytic destruction of cyclin B is an important event during cell division. Cyclin B proteolysis is triggered by the anaphase-promoting complex. Therefore, cell cycle dysregulation due to anaphase-promoting complex loss contributes to cell transformation and human carcinogenesis. This study investigates anaphase-promoting complex7 expression in spindle cell breast tumors and also includes a comparison between the proliferation antigen Ki-67 and S-phase fraction. The average values of the anaphase-promoting complex7 and Ki-67 labeling indices increased in order from benign to malignant within the phyllodes tumor group, and the fibroadenoma and juvenile fibroadenoma exhibited lower levels of anaphase-promoting complex7 and Ki-67 expression than did the phyllodes tumor. The frequency of anaphase-promoting complex7–positive stromal cells correlated with Ki-67 expression in phyllodes tumor and in all of the examined breast tumors. The above results indicate that anaphase-promoting complex7 and Ki-67 are closely related to cell proliferation. In addition, phyllodes tumor can be differentiated from juvenile fibroadenoma with increased mitotic figures mimicking phyllodes tumor by anaphase-promoting complex7 and Ki-67 immunochemistry. Because anaphase-promoting complex7 is expressed at higher levels than is Ki-67, it may overcome the limitations of the Ki-67 labeling index with regard to the differentiation of benign phyllodes tumor from fibroadenoma.</P>
Kang, Jin Soo,Kang, Jiho,Chae, Jiyoung,Son, Yoon Jun,Jeong, Juwon,Kim, Jin,Kim, Jae-Yup,Kang, Soon Hyung,Ahn, Kwang-Soon,Sung, Yung-Eun The Electrochemical Society 2018 Journal of the Electrochemical Society Vol.165 No.14
<P>Recent advances in optoelectronic properties of quantum dots (QDs) have led to significant improvement in QD-sensitized solar cells (QDSCs); however, for practical utilization of these devices, performance of the constituent electrocatalytic counter electrodes (CEs) needs to be further enhanced. Pt CEs are prone to severe sulfur poisoning by polysulfide redox electrolytes in QDSCs, and Cu<SUB>2</SUB>S CEs with state-of-the-art activity are vulnerable to light-induced degradations. In this study, for the first time, tungsten carbide (W<SUB>2</SUB>C) films were used as CEs for QDSCs. Instead of the conventional methods of carbide nanomaterial synthesis that involve thermal treatments in toxic/explosive atmospheres, room-temperature vapor deposition was employed for the preparation of W<SUB>2</SUB>C electrodes, and dendritic nanostructures with large surface areas were obtained. Although the electronic structures of Pt and W<SUB>2</SUB>C are highly similar, W<SUB>2</SUB>C was completely inert to sulfur poisoning. This led to a substantial improvement in the electrocatalytic performance for polysulfide reduction, and ∼27% enhancement in power conversion efficiency was achieved when Pt CEs were replaced with W<SUB>2</SUB>C CEs in QDSCs. Moreover, QDSCs comprising W<SUB>2</SUB>C CEs manifested excellent photostability, and they showed performances superior to those of QDSCs comprising state-of-the-art Cu<SUB>2</SUB>S electrodes within 40 min of operation, without any sign of drop in efficiency.</P>
Highly Efficient Bifacial Dye-Sensitized Solar Cells Employing Polymeric Counter Electrodes
Kang, Jin Soo,Kim, Jin,Kim, Jae-Yup,Lee, Myeong Jae,Kang, Jiho,Son, Yoon Jun,Jeong, Juwon,Park, Sun Ha,Ko, Min Jae,Sung, Yung-Eun American Chemical Society 2018 ACS APPLIED MATERIALS & INTERFACES Vol.10 No.10
<P>Dye-sensitized solar cells (DSCs) are promising solar energy conversion devices with aesthetically favorable properties such as being colorful and having transparent features. They are also well-known for high and reliable performance even under ambient lighting, and these advantages distinguish DSCs for applications in window-type building-integrated photovoltaics (BIPVs) that utilize photons from both lamplight and sunlight. Therefore, investigations on bifacial DSCs have been done intensively, but further enhancement in performance under back-illumination is essential for practical window-BIPV applications. In this research, highly efficient bifacial DSCs were prepared by a combination of electropolymerized poly(3,4-ethylenedioxythiphene) (PEDOT) counter electrodes (CEs) and cobalt bipyridine redox ([Co(bpy)<SUB>3</SUB>]<SUP>3+/2+</SUP>) electrolyte, both of which manifested superior transparency when compared with conventional Pt and iodide counterparts, respectively. Keen electrochemical analyses of PEDOT films verified that superior electrical properties were achievable when the thickness of the film was reduced, while their high electrocatalytic activities were unchanged. The combination of the PEDOT thin film and [Co(bpy)<SUB>3</SUB>]<SUP>3+/2+</SUP> electrolyte led to an unprecedented power conversion efficiency among bifacial DSCs under back-illumination, which was also over 85% of that obtained under front-illumination. Furthermore, the advantage of the electropolymerization process, which does not require an elevation of temperature, was demonstrated by flexible bifacial DSC applications.</P> [FIG OMISSION]</BR>
자살예방을 위한 동기증진 인지행동 프로그램이 자살시도자에게 미치는 효과에 대한 예비연구
강호엽(Kang, Ho-Yup),이현주(Lee, Hyun-Joo) 한국정신건강사회복지학회 2017 정신보건과 사회사업 Vol.45 No.4
본 연구의 목적은 자살시도자의 자살예방을 위한 동기증진 인지행동 프로그램을 적용하여 자살시도자에게 미치는 효과성을 검증하는 것이다. 프로그램은 정신건강복지센터에 등록된 실험집단 5명, 비교집단 5명을 대상으로 주 1회, 매 60분씩 총 6회기(사전회기 포함)로 실행되었다. 효과성 검증을 위하여 유사실험설계로 비동일 비교집단 설계를 하였다. 그 결과, 동기증진 인지행동 프로그램 참가자의 사회적 자기효능감이 유의하게 향상된 것으로 나타났고 우울, 절망감, 자살사고는 유의미하게 감소된 것으로 나타났다. 본 연구결과는 동기증진 인지행동 프로그램이 자살시도자의 자살사고를 감소하는 데 효과가 있으며 지역사회 자살예방기관에서 자살예방을 위한 개별 상담프로그램으로 활용될 수 있음을 의미한다. The purpose of this study is to examine the preventive effectiveness of motivation enhancing-CBT program on suicide attempters registered in the mental health welfare centers. The program was conducted using quasi-experimental design. In the experimental group, motivation enhancing-CBT program was provided with 5 clients once a week for 60 minutes for a total of 6 sessions including one pre-session. We utilized another 5 members as non-equivalent control group. to verify the program effectiveness. The results of the study showed that the motivation enhancing-CBT program was significantly effective in enhancing self-efficacy and life satisfaction motivation while reducing depression, hopelessness, and suicidal ideation. this research output indicates that the program can be utilized as an effective tool for suicide prevention intervention in the community.