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가족 정책의 차이에 따른 주관적 건강 궤적의 성별 격차: 덴마크, 독일, 한국 중년을 중심으로
김민혜 ( Kim¸ Minhye ),강영호 ( Khang¸ Young-ho ) 한국보건사회연구원 2020 保健社會硏究 Vol.40 No.4
본 연구에서는 주관적 건강(self-rated health)의 잠재성장곡선(latent growth curves) 분석 방법을 활용하여 한국 중년 남성과 여성의 건강의 성별차 및 건강에 영향을 미치는 요인에서의 차이를 덴마크, 독일과 비교하여 비교사회학적인 통찰을 얻고자 한다. 덴마크는 젠더 정책의 맞벌이 모형을, 독일은 가족 중심 모형의 대표 국가 중 하나이다. 한국은 잔여적인 지지 모형에서 맞벌이 모형으로의 변화가 시작되는 시점에 있다고 할 수 있다. 덴마크와 독일 자료로는 유럽 건강・노화・은퇴조사의 2007년부터 2015년까지, 한국은 고령화연구패널조사의 2006년부터 2014년까지의 5개 차수가 사용되었다. 50세-64세의 중년 남성과 여성이 분석 대상이었다(덴마크 총 1,403명, 독일 총 1,245명, 한국 총 4,301명). 비제약 모형에서 한국 남성의 건강 궤적이 여성보다 양호하여 성별격차를 보였다. 덴마크의 경우 남성과 여성의 차이가 거의 없고, 독일의 경우 여성이 남성보다 약간 양호한 궤적을 보였다. 제약 모형에서 한국 여성은 덴마크, 독일과 다르게 남성에 비해 교육 수준이 낮은 경우의 건강상의 불리함이 크고, 덴마크와 다르게 남성에 비해 노동지위가 있을 경우의 건강상의 혜택이 적었다. 또한 덴마크, 독일과 비슷하게 남성에 비해 가구 소득이 높을 경우의 건강상의 긍정적 효과가 두드러지지 않았다. 한국 남성의 경우 덴마크, 독일과 다르게 여성에 비해 단순반복직일 경우의 건강상의 부정적 효과가 컸다. This study compares the gendered inequalities of longitudinal change of health (self-rated health, SRH) and the effects of socioeconomic status among the middle-aged men and women. Countries with greater (Denmark, dual-earner support), medium (Germany, general family support), and lower (South Korea, residual support) levels of support system for women were selected. The Survey of Health, Aging and Retirement in Europe (2007-2015) and the Korean Longitudinal Study of Ageing (2006-2014) were used (total 1,403 Danes, 1,245 Germans, and 4,301 Koreans). Multiple group latent growth curve models were employed. Unconditional models showed that Korean men had better health trajectories than their female counterparts. No gender difference was found among Danes and women was slightly better among Germans. Conditional models yielded that, unlike Denmark and Germany, Korean women were more disadvantaged in terms of lower education than Korean men. Unlike Denmark, Korean women with working status gained less benefit than Korean men. In addition, similar to Denmark and Germany, Korean women with more household income did not experience much increase in SRH than Korean men. Unlike Denmark and Germany, Korean men with routine jobs were more disadvantaged than Korean women.
Shin, Hye-Jun,Park, Young-Ho,Kim, Sun-Uk,Moon, Hyung-Bae,Park, Do Sim,Han, Ying-Hao,Lee, Chul-Ho,Lee, Dong-Seok,Song, In-Sung,Lee, Dae Ho,Kim, Minhye,Kim, Nam-Soon,Kim, Dae-Ghon,Kim, Jin-Man,Kim, Sang American Society for Biochemistry and Molecular Bi 2011 The Journal of biological chemistry Vol.286 No.34
<P>Dysregulation of liver functions leads to insulin resistance causing type 2 diabetes mellitus and is often found in chronic liver diseases. However, the mechanisms of hepatic dysfunction leading to hepatic metabolic disorder are still poorly understood in chronic liver diseases. The current work investigated the role of hepatitis B virus X protein (<I>HBx</I>) in regulating glucose metabolism. We studied HBx-overexpressing (<I>HBx</I>Tg) mice and <I>HBx</I>Tg mice lacking inducible nitric oxide synthase (iNOS). Here we show that gene expressions of the key gluconeogenic enzymes were significantly increased in HepG2 cells expressing HBx (HepG2-<I>HBx</I>) and in non-tumor liver tissues of hepatitis B virus patients with high levels of <I>HBx</I> expression. In the liver of <I>HBx</I>Tg mice, the expressions of gluconeogenic genes were also elevated, leading to hyperglycemia by increasing hepatic glucose production. However, this effect was insufficient to cause systemic insulin resistance. Importantly, the actions of HBx on hepatic glucose metabolism are thought to be mediated via iNOS signaling, as evidenced by the fact that deficiency of <I>iNOS</I> restored HBx-induced hyperglycemia by suppressing the gene expression of gluconeogenic enzymes. Treatment of HepG2-<I>HBx</I> cells with nitric oxide (NO) caused a significant increase in the expression of gluconeogenic genes, but JNK1 inhibition was completely normalized. Furthermore, hyperactivation of JNK1 in the liver of <I>HBx</I>Tg mice was also suppressed in the absence of iNOS, indicating the critical role for JNK in the mutual regulation of HBx- and iNOS-mediated glucose metabolism. These findings establish a novel mechanism of HBx-driven hepatic metabolic disorder that is modulated by iNOS-mediated activation of JNK.</P>
고도산화공정을 이용한 고농도 무전해 니켈도금 폐액 처리방안 연구
서민혜 ( Minhye Seo ),조성수 ( Sungsu Cho ),이수영 ( Sooyoung Lee ),김진호 ( Jinho Kim ),강용호 ( Yong Ho Kang ),엄성현 ( Sunghyun Uhm ) 한국공업화학회 2015 공업화학 Vol.26 No.3
We develop advanced oxidation processes for the treatment of spent electroless nickel plating solution. Apart form recovering nickel by leaching and enrichment, more emphasis is placed on rendering the waste water recyclable via oxidizing phosphite and hypophosphite into phosphate which can then be precipitated easily. UV/H2O2 process is employed and the conversion efficiency of COD and PO4-P, and H2O2 consumption are analyzed. Furthermore, the UV/H2O2 process in conjunction with O3 generator enables us to not only save the treatment time by 6 hours but also reduce H2O2 consumption by 30%.
Kim, MinHye,Lee, Donguk,Woo, Ho-Young,Kim, Tae-Hyung,Paik, Taejong,Kim, Ki-Se Elsevier 2019 Materials & Design Vol.175 No.-
<P><B>Abstract</B></P> <P>Luminescent inorganic phosphors are widely used as wavelength-converting materials in many emerging applications including displays, solar cells, and bioimaging. This study demonstrates the synthesis of highly luminescent colloidal AlOH nanoparticles and the preparation of transparent luminescent AlOH/polymer composites. Colloidal AlOH nanoparticles are synthesized by the thermal decomposition of aluminum acetate hydroxide precursors in octadecene solution. The addition of oleic acid in the reaction mixture enables the control of the size and dispersity of the nanoparticles. As-synthesized nanoparticles are colloidally stable in non-polar solvents and exhibit excellent photoluminescence properties. Highly dispersible colloidal AlOH nanocrystals form stable mixtures with ethylene vinyl acetate (EVA) copolymers. Transmittance and photoluminescence measurements of the AlOH/EVA composite films when varying AlOH loading demonstrate that the transparent and luminescent AlOH/EVA composite films are promising candidates for applications in spectral converters.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Colloidal luminescent AlOH NPs are synthesized <I>via</I> the thermal decomposition of aluminum acetate in the presence of oleic acid. </LI> <LI> Colloidal AlOH NPs are highly dispersible in non-polar solvents and form transparent composites with EVA copolymers. </LI> <LI> AlOH/EVA films exhibit a high PLQY of more than 50%, while maintaining more than 94% of transparency at 600 nm. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Wideband VHF and UHF RF Front-End Receiver for DVB-H Application
Joonhong Park,Sunyoul Kim,Minhye Ho,Donghyun Baek 대한전기학회 2012 Journal of Electrical Engineering & Technology Vol.7 No.1
This paper presents a wideband and low-noise direct conversion front-end receiver supporting VHF and UHFbands simultaneously. The receiver iscomposed of a low-noise amplifier (LNA), a down conversion quadrature mixer, and a frequency divider by 2. The cascode configuration with the resistor feedback is exploited in the LNA to achieve a wide operating bandwidth. Four gainstep modesare employed using a switched resistor bank and a capacitor bank in the signal path to cope with wide dynamic input power range. The verticalbipolar junction transistors are used as the switching elements in the mixer to reduce 1/f noise corner frequency. The proposed front-end receiver fabricated in 0.18 μm CMOS technology shows very low minimum noise figureof 1.8 dB and third order input intercept pointof -12dBm inthe high-gain mode of 26.5 dBmeasured at 500 MHz.The proposed receiverconsumeslow current of 20 mA from a 1.8 V power supply.
Lee Jeeyeon,Park Ho Yong,Kim Wan Wook,Park Chan Sub,Jeong Minhye,Jung Jin Hyang 대한외과초음파학회 2020 대한외과초음파학회지 Vol.7 No.2
Purpose: Axillary lymph node status is an important prognostic factor in breast cancer. Axillary lymph nodes can be evaluated using fine-needle aspiration cytology (FNAC) or core needle biopsy (CNB) before surgery. This study compared the accuracy and false-negative rates between FNAC and CNB in patients with breast cancer who either did or did not receive neoadjuvant chemotherapy (NAC). Methods: The clinicopathological factors of the patients were analyzed retrospectively, and the sensitivity, specificity, positive and negative predictive values, false-positive and false-negative rates, and accuracy of FNAC (n = 27) and CNB (n = 23) were compared. Results: Regardless of whether or not NAC was performed, the CNB evaluation of the metastatic axillary lymph nodes had a 100.0% sensitivity, specificity, negative predictive value, and accuracy, except for one case with an inadequate sample. In the FNAC group, the false-negative rate was higher in patients with breast cancer who received NAC before evaluating the lymph nodes (9.1% vs. 7.7%). Moreover, ultrasound imaging was the most sensitive imaging modality that can detect the suspicious axillary lymph node. Conclusion: CNB was more effective in evaluating the axillary lymph nodes in breast cancer than FNAC and was performed without major complications.
이수영 ( Soo-young Lee ),서민혜 ( Minhye Seo ),조성수 ( Sung-su Cho ),이성규 ( Sungkyu Lee ),이영호 ( Young-ho Lee ) 한국폐기물자원순환학회(구 한국폐기물학회) 2018 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2018 No.-
게르마늄은 세계적으로 고가의 희소금속 중 하나로 국내에서는 게르마늄 광산이 없으며, 전량 수입에 의존하고 있는 금속이다. 게르마늄 주요 용도는 PET 수지 제조용 촉매, 광섬유, 반도체 등 국가 주력산업의 핵심 소재로 광범위하게 사용된다. 특히, 광섬유에는 1km당 0.54g의 게르마늄을 함유하고 있으며, 관련기술 미비로 국내외 모두 재활용이 시도되지 않고 있으므로, 기술 선점 시 그 파급효과가 매우 클 것으로 판단되어진다. 따라서 본 연구는 폐 광섬유에서 게르마늄을 경제적으로 회수할 수 있는 가능성을 입증하기 위해 pyrometallurgy와 hydrometallurgical reactions을 결합한 하이브리드 방식을 통해 게르마늄 농축을 하고자 하였으며, 반응 온도, 반응 시간 등을 변화 시키며 게르마늄 농축 거동을 관찰하였다.