테레프탈알데하이드의 전자전달 강화효과에 따른 헴 단백질 모방 촉매의 성능 향상 및 이를 이용한 비분리막형 과산화수소 연료전지

전시은,안희연,정용진,Jeon, Sieun,An, Heeyeon,Chung, Yongjin 한국화학공학회 2022 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.60 No.4

Terephthalaldehyde (TPA) is introduced as a cross liker to enhance electron transfer of hemin-based cathodic catalyst consisting of polyethyleneimine (PEI), carbon nanotube (CNT) for hydrogen peroxide reduction reaction (HPRR). In the cyclic voltammetry (CV) test with 10 mM H₂O₂ in phosphate buffer solution (pH 7.4), the current density for HPRR of the suggested catalyst (CNT/PEI/hemin/PEI/TPA) shows 0.2813 mA cm^-2 (at 0.2 V vs. Ag/AgCl), which is 2.43 and 1.87 times of non-cross-linked (CNT/PEI/hemin/PEI) and conventional cross liker (glutaraldehyde, GA) used catalyst (CNT/PEI/hemin/PEI/GA), respectively. In the case of onset potential for HPRR, that of CNT/PEI/hemin/PEI/TPA is observed at 0.544 V, while those of CNT/PEI/hemin/PEI and CNT/PEI/hemin/PEI/GA are 0.511 and 0.471 V, respectively. These results indicate that TPA plays a role in facilitating electron transfer between the electrodes and substrates due to the π-conjugated cross-linking bonds, whereas conventional GA cross-linker increases the overpotential by interrupting electron and mass transfer. Electrochemical impedance spectroscopy (EIS) results also display the same tendency. The charge transfer resistance (R_ct) of CNT/PEI/hemin/PEI/TPA decreases about 6.2% from that of CNT/PEI/hemin/PEI, while CNT/PEI/hemin/PEI/GA shows the highest R_ct. The polarization curve using each catalyst also supports the superiority of TPA cross liker. The maximum power density of CNT/PEI/hemin/PEI/TPA (36.34±1.41 μWcm^-2) is significantly higher than those of CNT/PEI/hemin/PEI (27.87±0.95 μWcm^-2) and CNT/PEI/hemin/PEI/GA (25.57±1.32 μWcm^-2), demonstrating again that the cathode using TPA has the best performance in HPRR.

인터넷 공간에서의 증오표현의 유통과 규제 - 표현의 자유에 대한 언어학적,사회학적 고찰을 바탕으로

전시은 ( Si Eun Jeon ) 경희대학교 법학연구소 2016 KHU 글로벌 기업법무 리뷰 Vol.9 No.1

정보기기의 발전과 확산으로 그 활용의 형태가 다양해지면서 우리는 새로운 생활을 맞이하고 있다. 인터넷으로 대변되는 사이버공간에서 기존에는 볼 수 없었던 형태의 여론형성의 장이 태동했으며, 그 구조의 자가적인 확장은 개개인을 정보시대의 생산자와 소비자의 위치로 끌어올리게 된다. 이는 현실에서의 주제와 사이버공간에서의 주제가 동일하면서도 동일하지 않은 힘을 부여받게 됨으로써 개인이 가진 영향력과 범위가 확대된 것이다. 이에 우리는 커진 힘만큼 그 책임도 지고 있는지 성찰해볼 필요가 있다. 한층 격상된 사이버공간의 주체로, 또 그 주체들의 커진 영향이 부정적인 결과로 이어지는 대표적인 사회문제에는 ``증오표현``이 있다. 인터넷 커뮤니티 등의 공간과, 또 다른 확장된 공간으로서 SNS에서는 사용주체들의 증오표현이 범람하고 있다. 사이버공간에서는 신조어의 생성과 소멸의 주기가 더 짧기 때문이다. 공시태적인 문화자질을 갖고 있는 이러한 신조어들은 일순간에 대상들을 적으로 만들어 배제시킨다. 인터넷 세대에게는 낯설지 않은 신조어들은 그렇게 비하와 증오를 머금은 채로 오늘날 우리들의 문화를 담고 있는 것이다. 이러한 상황에서, 인터넷과 SNS라는 공간에서 이루어지는 증오표현들에 대해 범죄로의 위험성은 없는지, 입법으로 해결해야하는 부분은 아닌지로 생각이 이어진다. 하지만 표현의 자유라는 헌법상 중요한 기본권의 침해와 맥락이 닿아있다는 점에서 한층 더 깊게 고민해보아야 한다. 외국의 경우 표현의 자유에 대한 제한은 매우 엄격하고 조심스럽게 행해지고 있는데, 우리나라의 경우 제한적 본인확인제도와 관련한 헌법재판소의 위헌결정 또한 그러한 흐름의 일환이 아닌가 생각한다. 증오표현의 범죄로의 확장이 매우 우려되지만, 표현의 자유라는 헌법적 가치를 고려할때, 그 일률적이 기준이 불가능한 것은 자명한 사실이다. 이에 사이버공간 자체가 민주적이고 건강한 생활의 장이 되기 위한, 자정가능한 공간으로의 입법 방향이 고민되어야 할 것이다. 새로운 형태의 사회가 도래한 지금에는 어떤 유형의 사회적 언어폭력과, 사이버 범죄유형이 등장할지 알기 어렵다. 다만 그 사회의 문화적 규범을 고양시키는 데에 입법의 초점이 맞줘져야 할 것이다. Since the advent of information technology and its widespread use, we have entered a new era. Cyberspace, fueled by the worldwide web, has created a new forum of public opinion in an unprecedented form. The self-expansion of the online community positions an individual as creator of information, as well as its consumer. Such a trend signifies that an individual now has a wider range of influence in the online world as one is empowered with an influence that is similar yet different from that of his actual self. Thus we must ponder whether we bear the appropriate responsibility that comes with our increased power. One prime example of social issue that emerges bin the negative ramifications of increased number of online users and their influence is ``hate speech``. Online forums and social media are inundated with expressions of hate towards certain groups. Such neologisms, existing in a synchronic axe in a cultural sense, are created and expired at a much faster rate online. For the Internet-driven youths, such coinage is familiar enough, containing a hate-filled culture that is reflected in the language of discrimination and derision. Such an environment calls for a legislative solution to handle hate speech that may lead to criminal behavior. At the same time, freedom of expression - a core value of constitutional freedom - must also be considered in conjunction, lest it be violated. Various jurisdictions approach the restriction of freedom of expression in a stringent manner of the least infringement. The recent ruling of the Constitutional Court that found restrictive identification policy unconstitutional seems concordant with such a trend. While it cannot be denied that hate speech may expand into actual criminal behavior, it is clear that no uniform standard of hate speech can be established when considering the importance of freedom of expression. A legislative effort to establish a democratic, constructive online environment is called for. As we stand in the newcoming age of information society, we cannot determine as yet the form of verbal violence and internet crimes that will emerge. Legislation must focus on implementing laws that will uphold the cultural norms of the society.

20대여성의 유방자가검진에 대한 지식과 자기효능감의 관계연구

강지혜,유리나,박민아,박신영,양은주,이주은,전시은,정윤혜,최연아,홍재하,이자형,정덕유,배노연 이화여자대학교 간호과학대학 2009 이화간호학회지 Vol.- No.43

The purpose of this study was to know relationship between important variables which influence lifestyle in college women`s health promotion, prove adjustable factors and provide basic data which develops nursing intervention health promotion program. The method of this study was descriptive correlational study. The convenience sample was 206 college woman who live alone in lodgings, dormitory, a reading room or off-campus housing. Research instruments were the Multidimensional Health Locus of Control(MHLC) developed by Wallston, Wallston & Devellis(1978), Interpersonal Support Evaluation List developed by Cohern, Hoberman(1983) and The Health Promotion Lifestyle Profile(HPLP) developed by Walker, Pender & Sechrist(1978) and the data was used after Factor Analysis. The result of this study was follows. 1. It can be found that the level of the college woman`s health promotion lifestyle was 2.46±.33 with higher fulfilling level: According to general characteristic, the level of health promotion lifestyle was 5% significant statistical differences by age and period of menstruation. 2. The level of health locus of control was 3.25±.31 with higher fulfilling level. 3. The interpersonal support level was 3.05±.44 with higher fulfilling level. 4. The level of interpersonal support turned out most convincing factor in health promotion lifestyle (9%). In addition to age factor, two factors was 10% power of explanation in whole health promotion.

일반아동 부모의 언어치료에 대한 인식 비교 연구

정은지(Eun Ji Jung),임미화(Mi Hwa Im),임수은(Su Eun Im),전시은(Si Eun Jeon),박진원(Jin Won Park) 한국언어치료학회 2016 한국언어치료학회 학술발표대회 논문집 Vol.2016 No.12

Purpose: The purpose of this study was to examine the perception of language therapy. In particular, the study was conducted on parents of normal children. Father group and mothers group, and to investigate the differences in the perception of two language disorders and speech therapy. Methods: We divided the normal children into father group and mother group. A total of 200 questionnaires were distributed. 25 questionnaires related to the recognition of speech disorders and recognition of speech therapy were distributed and retrieved. Frequency analysis was conducted to compare the current status, and frequency and percentage were presented. Results: Both groups were found to know precisely the general information about speech therapy. However, father group recognized genetic cause more than mother group. In addition, both groups showed more importance in social development area than language development area. Conclusions: Based on the results of this study, various educational opportunities should be provided for the generalization of language therapy.

평상시 습관 경험에 따른 측두하악관절장애의 지식, 증상, 스트레스에 관한 연구

강연주(Yeon-Ju Kang),박효은(Hyo-Eun Park),이가림(Ga-Lim Lee),전시은(Si-Eun Jeon),장경애(Kyeung-Ae Jang) 한국구강보건과학회 2013 한국구강보건과학회지 Vol.1 No.1

Objectives: The aim of this study was to investigate the habits everyday experience and the knowledge of TMD symptoms of temporomandibular disorders and to determine the extent of stress. Methods: A survey was conducted from May 4 through May 13, 2013, by using structured, self-administered questionnaires. All statistical analyses were performed using SPSS. Results: Have a habit of sticking your chin forward the TMD knowledge scores were lower in the group. Have a habit of hitting the teeth the TMD symptom scores were lower in the group. Have a habit of hitting the teeth the TMD stress scores were lower in the group. TMD knowledge shows positive correlation with usual habit (r = .153), stress (r = .157). TMD symptom shows positive correlation with usual habit (r = .340), stress (r = .441). Usual habit shows positive correlation with stress (r = .327). Conclusions: The findings of this study indicate that TMD related prevention programs need to be done systematically.