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설계사무소 남성 및 여성기술인력의 업무환경 실태분석 및 개선방안
윤정인 ( Yoon Jung-in ),고찬영 ( Ko Chan-yeong ),정현용 ( Jeong Hyun-young ),신원상 ( Shin Won-sang ),손창백 ( Son Chang-baek ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.1
Recently, as the characteristics and production methods of the construction industry are changing, and women are actively entering the society, the view of women in the construction industry is also gradually changing. Although the government is currently improving the system to expand women's participation, nevertheless, women's participation in the construction industry is very low compared to other industries. The scope of this study was limited to presenting the actual working environment and improvement plans for male and female engineers in the design office. As a result of the survey on the insufficient part of the work environment, the item 'rest space such as lounge, bathroom, and conference room was narrow' was highly surveyed for men, and 'there was no rest space that required gender discrimination' was highly surveyed for women. As for the improvement measures, both men and women were surveyed highly in the category of 'My place for personal work'. In this study, the scope of the study has a limitation in that it only presents the actual situation and improvement measures for the working environment for male and female engineers in the design office.
김상훈(Sang Hoon Kim),심대중(Dae Jung Shim),서원태(Won Tae Seo),임시영(Si Young Lim),이승세(Seung Sei Lee),국신호(Shin Ho Kook),금주섭(Joo Seob Keum),오태윤(Tae Yoon Oh),장운하(Woon Ha Chang) 대한내과학회 1999 대한내과학회지 Vol.57 No.1
Epithelioid hemangioendothelioma(EH) is a rare vascular tumor of low-grade malignancy. It was previously described as intravascular bronchioloalveolar tumor (IVBAT). But electron microscopic study and immunohistochemical staining results have proved endothelial origin. Patients are usually asymptomatic and the tumors are found incidentally on routine chest X-rays. Most patients show a slowly progressive clinical course, even though some patients occasionally die as results of respiratory failure or extrathoracic complications. Confirmative diagnosis is made through thoracoscopic or open-lung biopsy. There is still no effective therapeutic modality for pulmonary EH. We have experienced a 55-year-old woman whose simple chest x-ray film revealed bilateral multiple small nodules. The nodules were histopathologically and immunohistochemically diagnosed as primary epithelioid hemangioendothelioma of the lung. The possibility of metastatic disease was excluded thorough clinical, laboratory and radiological studies. Comparison of radiographic chest film taken 3 years ago showed no significant progression of the pulmonary nodular lesions. Conservative management was instituted and careful 4 months follow-up showed no significant changes.
전상중(Sang Joong Jeon),정진홍(Jin Hong Chung),홍경순(Kyung Soon Hong),전재은(Jae Eun Jun),박의현(Wee Hyun Park),박희명(Hi Myung Park),김윤년(Yoon Nyun Kim),김권배(Kwon Bae Kim),장성국(Sung Kug Chang),이종주(Jong Joo Lee) 대한내과학회 1987 대한내과학회지 Vol.33 No.4
N/A The clinical and laboratory features of hypertrophic cardiomyopathy were studied in 30 cases. They consisted of 21 males and 9 females, and the age ranged from 21 to 74 years with an average of 50. The cardinal presenting symptoms were dyspnea, chest pain and palpitation in the order of decreasing frequency. Physical examination revealed apical systolic murmur in 27 cjases (90%), with thrill in 10 (33%), and the routine chest films showed enlargment of cardiac silhouette in 15 cases (50%). Abnormal electrocardiographic findings are noted in 27 cases (90%). Among them repolarization abormalities and left ventricular hypertrophy were the most common, occurring in 71% and 66 % of the cases, respectively, follower1 by left atrial enlargment in 24% and the abnormal Q waves in 20% Among various echocardiographic abnormalities, the mean of septal thickness and its ratio to left ventricular posterior wall thickness were 19 mm and 2,1 respectively, and the mean of the degree of systolic anterior motion of mitral valves was 9 mm. The mean of preejection period and left ventricular ejection time as well as their ratio determined in 10 cases were within normal limits. Out of 20 eases treated with beta or calcium blockers. for a mean of 22 months, 14 (70) experienccd symptomatic improvement. □ (5%) deteriorated and in the remainder (25%) there were no noticeable changes.
Radiotherapy-associated Furin Expression and Tumor Invasiveness in Recurrent Laryngeal Cancer
LEE, MYUNGJIN,RYU, CHANG HWAN,CHANG, HYO WON,KIM, GUI CHUL,KIM, SEONG WHO,KIM, SANG YOON Potamitis Press 2016 Anticancer research Vol.36 No.10
<P>Background/Aim: Recurrent laryngeal cancer often shows an aggressive phenotype after radiotherapy and does not respond to conventional therapeutic strategies. In this study, we investigated the contribution of furin to cellular invasiveness in radio-resistant laryngeal cancer. Materials and Methods: Using previously established AMC-HN-3 and AMC-HN-8 cell lines from laryngeal carcinoma patients, recurrent laryngeal cancer models were generated by cumulative irradiation (AMC-HN-3-70Gy and AMC-HN-8-70Gy). Immunocytochemistry and western blotting were used to determine the epithelial-mesenchymal transition (EMT). Invasion capacity was assessed using an in vitro invasion assay. Zymography was used to assess metalloproteinase-2 (MMP-2) activity. Tumor xenografts were developed to compare growth rate and furin expression in vivo. Furin expression in 35 patients (45 samples) with salvage total laryngectomy after radiation-based treatment was assessed by laryngeal cancer tissue microarray. Results: Both AMC-HN-3-70Gy and AMC-HN-8-70Gy cell lines underwent EMT following radiation. However, AMC-HN-3-70Gy cells showed increased cellular invasiveness, whereas AMC-HN-8-70Gy cells showed no difference. AMC-HN-3-70Gy cells also exhibited elevated furin expression with up-regulated expression of the active form of membrane type 1-matrix metalloproteinase (MT1MMP)/MMP-2, whereas AMC-HN-8-70Gy cells did not show significant changes. After administration of a furin inhibitor (chloromethyl ketone (CMK)), AMC-HN-3-70Gy cells showed a significant decrease in MT1-MMP/MMP-2 expression and cellular invasiveness. Nine of 22 samples (40.9%) from salvage total laryngectomy and one of 13 pre-radiation samples (7.7%) had high furin expression. Post-radiation, furin expression increased in seven of 10 patients whose pre- and post-radiation samples were available; all-cancer mortality (three patients) was observed in this group. Conclusion: Together with EMT, furin activity may serve as an indicator of an aggressive cancer phenotype, suggesting that furin is a potentially useful target for recurrent laryngeal cancer.</P>
Basic Properties of Cell Fabricated by Ion-beam Treatment for In-plane Switching LCD
Seo, Joo-Hong,Lee, Sung-Pil,Yoon, Tae-Hoon,Kim, Jae-Chang The Korean Infomation Display Society 2006 Journal of information display Vol.7 No.1
We investigated the horizontal alignment properties such as surface morphology, pretilt angle, and polar and azimuthal anchoring energy of organic alignment material-coated surface treated by ion beam. In this investigation the energy and incident angle of ion beam were changed. We also fabricated an in-plane switching (IPS) cell by ion beam alignment. The results showed similar voltage-transmittance characteristics to those of a rubbed cell and better dark state.
Lee, Tack,Lim, U-Sung,Kang, Dong Hyuk,Jung, Hae-Do,Kim, Hyunzu,Choi, Bo-Hwa,Kang, Ju-Hee,Yoon, Sang-Min,Park, Chang-Shin Korean Continence Society 2017 International Neurourology Journal Vol.21 No.4
<P><B>Purpose</B></P><P>The pathophysiological role of detrusor overactivity (DO) in the bladder, which is commonly observed in various bladder diseases, is not well understood. DO appears in bladder outlet obstruction (BOO), and may continue even after subsequent deobstruction. DO therefore provides an excellent opportunity to observe molecular biological changes.</P><P><B>Methods</B></P><P>In this study, to understand the molecular effects of persistent DO after BOO induction and deobstruction, we performed awake cystometry on female Sprague-Dawley rats divided into 4 groups: a sham group, a BOO group, a deobstructed group with DO after BOO (DDO), and a deobstructed group without DO after BOO (non-DDO). Total RNA was extracted from the bladder samples, and gene expression profiles were compared between the sham and model groups.</P><P><B>Results</B></P><P>DO was observed in 5 of the 6 rats (83%) in the BOO group, and in 6 of the 13 rats (46%) in the deobstructed group. The non-DDO group showed a significantly greater residual volume than the DDO group. Through a clustering analysis of gene expression profiles, we identified 7,532 common upregulated and downregulated genes, the expression of which changed by more than 2 fold. In the BOO group, 898 upregulated and 2,911 downregulated genes were identified. The non-DDO group showed 3,472 upregulated and 4,025 downregulated genes, whereas in the DDO group, only 145 and 72 genes were upregulated and downregulated, respectively.</P><P><B>Conclusions</B></P><P>Abnormal function and gene expression profiles in bladders after BOO were normalized in the BOO rats with DO after deobstruction, whereas in those without DO, abnormal function persisted and the gene expression profile became more abnormal. DO may play a protective role against the stress to the bladder induced by BOO and deobstruction as a form of adaptive neuroplasticity.</P>
노수경,Ji Yeong Yoon1,최철훈,Ui Nam Ryoo,Chang Ohk Sung,김태중,배덕수,김병기 대한부인종양학회 2008 Journal of Gynecologic Oncology Vol.19 No.4
Multiple primary cancer is defined as the multiple occurrence of malignant neoplasms in the same individual. Due to the development of new diagnostic techniques and the rise in long-term survival of cancer, reports of multiple primary cancers have gradually increased. Herein, we describe the case of a 68-year-old female patient with quadruple primary cancer of the breast, rectum, ovary, and endometrium. For its great rarity, we report this case with a review of the literature. Multiple primary cancer is defined as the multiple occurrence of malignant neoplasms in the same individual. Due to the development of new diagnostic techniques and the rise in long-term survival of cancer, reports of multiple primary cancers have gradually increased. Herein, we describe the case of a 68-year-old female patient with quadruple primary cancer of the breast, rectum, ovary, and endometrium. For its great rarity, we report this case with a review of the literature.
PVS 유도체에 대한 L-Cysteine 의 친핵성 첨가반응에 관한 연구
이기창,이광일,윤철훈,황성규,공승대 ( Ki Chang Lee,Kwang Iil Lee,Chul Hun Yoon,Sung Kwy Hwang,Seung Dae Kong ) 한국유화학회 1995 한국응용과학기술학회지 Vol.12 No.2
Phenylvinylsulfone derivatives were synthesized by Kirners condition. The structure of these compounds were ascertained by means of ultraviolet, melting point, IR and ^1H-NMR spectra. The nucleophilic addtion reaction kinetics of L-cysteiene for phenylvinylsulfone was investigated by ultraviolet spectrophotlmetery in 40% EtOH-H_2O at 25℃. The rate equations which were applied over a wide pH 1.0~13.0 range. On the basis of general base catalysis and confirmation of addtion reaction product, the nucleophilic addtion reaction kinetics of L-cysteiene for phenylvinylsulfone were measured by the pH change. From the result of the above caption, a plausible nucleophilic addtion reaction mechanism of L-cysteiene for phenylvinylsulfone was proposed. These compounds may by used ad the starting materials for the preparation of the engineering plastics or the germicide.
Furfurylidene acetophenone 유도체의 합성과 가수분해 반응
이기창,이광일,윤철훈,황성규,오세영 ( Ki Chang Lee,Kwang Il Lee,Cheol Hun Yoon,Sung kwy Hwang,Se Young Oh ) 한국유화학회 1996 한국응용과학기술학회지 Vol.13 No.1
Furfurylidene acetophenone derivatives were synthesis, it was measured that hydrolysis made use of UV at a wide pH 1.0~13.0 range in 30% dioxane-H_2O solution, 25±1℃. On the basis of general base catalysis, substitutent effect, confirmation of hydrolysis products, it was measured the reaction rate of furfurylidene acetophenone derivatives for the pH change. It maybe concluded that a part was unrelated to pH and another part was in proportion to concentration of hyfroxide ion : Above pH 10.0, It was in proportion to concentration of hydroxide ion, a part having no concern with pH was added to the neutral H_2O molecule. From the result of measurement the reaction rate, hydrolysis of furfurylidene acetophenone derivatver confirmed to the irreversible first order. Through measurement the substituent effect, It found that reaction rate was accelerated by electron attracting group. Also, From the result of final product, There were furfural and acetophenone derivative was proposed a fitting mechanism.