http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Childhood Sexual Abuse and Cortical Thinning in Adults With Major Depressive Disorder
Jinyi Kim(Jinyi Kim),Chanju Lee(Chanju Lee),Youbin Kang(Youbin Kang),Wooyoung Kang(Wooyoung Kang),Aram Kim(Aram Kim),Woo-Suk Tae(Woo-Suk Tae),Byung-Joo Ham(Byung-Joo Ham),Jisoon Chang(Jisoon Chang),Ky 대한신경정신의학회 2023 PSYCHIATRY INVESTIGATION Vol.20 No.3
Objective A growing body of evidence reports on the effect of different types of childhood abuse on the structural and functional architecture of the brain. In the present study, we aimed to investigate the differences in cortical thickness according to specific types of childhood abuse between patients with major depressive disorder (MDD) and healthy controls (HCs). Methods A total of 61 patients with MDD and 98 HCs were included in this study. All participants underwent T1-weighted magnetic resonance imaging, and the occurrence of childhood abuse was assessed using the Childhood Trauma Questionnaire. We investigated the association between whole-brain cortical thickness and exposure to any type of childhood abuse and specific type of childhood abuse in the total sample using the FreeSurfer software. Results No significant difference was reported in the cortical thickness between the MDD and HC groups nor between the “any abuse” and “no abuse” groups. Compared to no exposure to childhood sexual abuse (CSA), exposure to CSA was significantly associated with cortical thinning in the left rostral middle frontal gyrus (p=0.00020), left (p=0.00240), right fusiform gyri (p=0.00599), and right supramarginal gyrus (p=0.00679). Conclusion Exposure to CSA may lead to cortical thinning of the dorsolateral prefrontal cortex, which is deeply involved in emotion regulation, to a greater extent than other types of childhood abuse.
Topological quantum phase transitions driven by external electric fields in Sb2Te3 thin films.
Kim, Minsung,Kim, Choong H,Kim, Heung-Sik,Ihm, Jisoon National Academy of Sciences 2012 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF Vol.109 No.3
<P>Using first-principles calculations, we show that topological quantum phase transitions are driven by external electric fields in thin films of Sb(2)Te(3). The film, as the applied electric field normal to its surface increases, is transformed from a normal insulator to a topological insulator or vice versa depending on the film thickness. We identify the band topology by directly calculating the Z(2) invariant from electronic wave functions. The dispersion of edge states is also found to be consistent with the bulk band topology in view of the bulk-boundary correspondence. We present possible applications of the topological phase transition as an on/off switch of the topologically protected edge states in nano-scale devices.</P>
Room-temperature hydrogen storage via two-dimensional potential well in mesoporous graphene oxide
Kim, Tae Hyung,Bae, Jaehyun,Lee, Tae Hoon,Hwang, Jeongwoon,Jung, Jong Hyun,Kim, Do Kyoung,Lee, Jin Seo,Kim, Dong Ok,Lee, Young Hee,Ihm, Jisoon Elsevier 2016 Nano energy Vol.27 No.-
<P><B>Abstract</B></P> <P>Hydrogen is an excellent energy carrier free of carbon dioxide emission, but safe and efficient storage of hydrogen has been a bottleneck for the commercial use of hydrogen as a fuel. Here, we present a strategy based on simple thermodynamic principles that the density of a gas residing in a potential well increases exponentially relative to the ambient gas by the corresponding Boltzmann factor. This mechanism allows for enormously enhanced H<SUB>2</SUB> storage in the form of delocalized gas permeating throughout the void space of a material, in contrast to conventional storage localized to specific adsorption sites. We create mesoporous graphene oxide that provides a two-dimensional potential well and efficient hydrogen diffusion pathways. The gravimetric storage density measured with quartz-crystal microbalance reaches 4.65wt% reproducibly at a modest pressure of 40atm at room temperature. Our work demonstrates the attainability of the long-standing goal of room-temperature hydrogen storage.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The new theoretical model is built for gas-phase storage in a 2D potential well. </LI> <LI> The mesoporous GO achieves high hydrogen storage at room-temperature. </LI> <LI> We developed the quartz crystal microbalance system for a moisture free environment. </LI> <LI> Samples still survive and maintain their storage capacity consistently over three years. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P> <B>Hydrogen storage</B>: KOH-dispersed and hydrothermally treated freeze-dried GO (called MESOGO) presents efficient hydrogen diffusion pathways at room temperature. Atomic configurations and the corresponding potential landscapes experienced by an H<SUB>2</SUB> molecule adsorption on the plane passing through the center of two MESOGO layers for relaxed atomic structures of stored hydrogen molecules.</P> <P>[DISPLAY OMISSION]</P>
Childhood Sexual Abuse and Cortical Thinning in Adults With Major Depressive Disorder
Kim Jinyi,Lee Changju,Kang Youbin,Kang Wooyoung,Kim Aram,Tae Woo-Suk,Ham Byung-Joo,Chang Jisoon,Han Kyu-Man 대한신경정신의학회 2023 PSYCHIATRY INVESTIGATION Vol.20 No.4
Objective A growing body of evidence reports on the effect of different types of childhood abuse on the structural and functional architecture of the brain. In the present study, we aimed to investigate the differences in cortical thickness according to specific types of childhood abuse between patients with major depressive disorder (MDD) and healthy controls (HCs).Methods A total of 61 patients with MDD and 98 HCs were included in this study. All participants underwent T1-weighted magnetic resonance imaging, and the occurrence of childhood abuse was assessed using the Childhood Trauma Questionnaire. We investigated the association between whole-brain cortical thickness and exposure to any type of childhood abuse and specific type of childhood abuse in the total sample using the FreeSurfer software.Results No significant difference was reported in the cortical thickness between the MDD and HC groups nor between the “any abuse” and “no abuse” groups. Compared to no exposure to childhood sexual abuse (CSA), exposure to CSA was significantly associated with cortical thinning in the left rostral middle frontal gyrus (p=0.00020), left (p=0.00240), right fusiform gyri (p=0.00599), and right supramarginal gyrus (p=0.00679).Conclusion Exposure to CSA may lead to cortical thinning of the dorsolateral prefrontal cortex, which is deeply involved in emotion regulation, to a greater extent than other types of childhood abuse.
Tunneling-Induced Spectral Broadening of a Single Atom in a Three-Dimensional Optical Lattice
Kim, Wookrae,Park, Changwon,Kim, Jung-Ryul,Choi, Youngwoon,Kang, Sungsam,Lim, Sooin,Lee, Yea-Lee,Ihm, Jisoon,An, Kyungwon American Chemical Society 2011 Nano letters Vol.11 No.2
<P>We have investigated the spectral broadening in the near-resonance fluorescence spectrum of a single rubidium atom trapped in a three-dimensional (3D) optical lattice in a strong Lamb-Dicke regime. Besides the strong Rayleigh peak, the spectrum exhibited weak Stokes and anti-Stokes Raman sidebands. The line width of the Rayleigh peak for low potential depths was well explained by matter-wave tunneling between the first-two lowest vibrational states of 3D anisotropic harmonic potentials of adjacent local minima of the optical lattice.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/nalefd/2011/nalefd.2011.11.issue-2/nl103858x/production/images/medium/nl-2010-03858x_0007.gif'></P>
Atomic-scale mechanism of grain boundary motion in graphene
Kim, Dongwook,Kim, Youngkuk,Ihm, Jisoon,Yoon, Euijoon,Lee, Gun-Do Elsevier 2015 Carbon Vol.84 No.-
<P><B>Abstract</B></P> <P>Grain boundaries (GBs) in graphene can migrate when irradiated by electron beams from a transmission electron microscope (TEM). Here, we present an <I>ab initio</I> study on the atomic scale-mechanism for motion of GB with misorientation angle of ∼30° in graphene. From total energy calculations and energy barrier calculations, we find that a Stone–Wales (SW)-type transformation can occur more easily near GBs than in pristine graphene due to a reduced energy barrier of 7.23eV; thus, this transformation is responsible for the motion of GBs. More interestingly, we find that a mismatch in the crystalline orientation at GBs can drive the evaporation of a carbon dimer by greatly reducing the corresponding overall energy barrier to 11.38eV. After evaporation of the carbon dimer, the GBs can be stabilized through a series of SW-type transformations that result in GB motion. The GB motion induced by evaporation of the dimer is in excellent agreement with recent TEM experiments. Our findings elucidate the mechanism for the dynamics of GBs during TEM experiments and enhance the controllability of GBs in graphene.</P>
중년 이후 여성에서 삶의 질 저하에 영향을 미치는 요인: 폐경 형태와 대사증후군 위험요인을 중심으로
김지순 ( Kim Jisoon ),안숙희 ( Ahn Sukhee ) 여성건강간호학회 2016 여성건강간호학회지 Vol.22 No.4
Purpose: This study explored influencing factors on quality of life (QoL) above middle-aged women in relation to demographic factors, health-related factors, menopausal status, metabolic syndrome (MS) and its risk factors. Methods: This study was secondary data analysis from the Sixth Korea National Health and Nutrition Examination Survey 2013~2015 that utilized a complex, multi-stage probability sample design. Study sample of 2,310 was inclusive of (28.8%) of women who were over 40. To evaluate the factors that would influence an impaired quality of life, x<sup>2</sup> test, GLM, and logistic regression analysis were done. Results: Level of quality of life was lower in women with late post-menopause(over 10 years since menopause) than women with pre-menopause. Factors influencing impaired QoL were as follows: graduated middle school and elementary school or less (OR=2.43, 4.42, respectively, p<.05), no job (OR=1.92, p<.001), stress (OR=1.92, p=.001), depression (OR=1.93, p=.001), insufficient sleep (OR=1.64, p=.003), late post-menopause (OR=2.61, p=.044) and over 85cm of waist circumference (OR=1.76, p=.01). Conclusion: These results suggest that late post-menopause may be an independent factor influencing an impaired QoL. To promote post-menopausal womens` health, a nursing strategy is required to teach women how to manage levels of stress, depression, insufficient sleep, and abdominal obesity through health education, nutritional counselling, and physical activity program.
간호대학생 대상 한국판 의료계열 학생용 제퍼슨 공감 척도의 신뢰도 및 타당도 검증
김지순(Kim, Jisoon),안숙희(Ahn, Sukhee) 한국간호교육학회 2018 한국간호교육학회지 Vol.24 No.3
Purpose: This study was to validate the Korean version of the Jefferson Scale of Empathy-Health Professions Students (K-JSE-HPS) in undergraduate nursing students. Methods: With a survey design, a total of 293 junior and senior nursing students were recruited and data were collected using a self-administered study questionnaire to measure their levels of empathy use the K-JSE-HPS. Using SPSS/WIN 22.0 and AMOS 22.0, data analysis was conducted with confirmatory factor analysis, criterion validity, and reliability. Results: For construct validity, confirmatory factor analysis showed an acceptable model fit (Goodness of Fit Index was 0.88) along with confirming convergent and discriminant validity (construct reliability was 0.70). For criterion validity, the scale was significantly related with the Interpersonal Reaction Index. For reliability, Cronbach’s α coefficient for the scale was 0.87 and for the subscales were 0.84, 0.78, and 0.69, respectively. Conclusion: The findings show satisfactory construct and criterion validity and reliability of the Korean version of the JSE-HPS for measuring empathy in undergraduate nursing students.