http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
아마존 모토로 담수가오리(Potamotrygon motoro)의 척추 돌기 독 가시에 의한 손상 1례
좌민홍 ( Min Hong Choa ),전승호 ( Seung Ho Jun ),김덕환 ( Duk Hwan Kim ),박종수 ( Jong Su Park ),김수진 ( Su Jin Kim ),홍윤식 ( Yun Sik Hong ),이성우 ( Sung Woo Lee ) 대한임상독성학회 2013 대한임상독성학회지 Vol.11 No.1
Potamotrygon motoro, also known as the Marble motoro, is a potamodromous freshwater ray native to the basins of the Amazon River. Marble motoros were introduced to South Korea in the 2000s, and, because they are easy to raise, were sold as aquarium fish. The aim of this report is to illustrate a new case involving envenomation by a Marble motoro. A 35-year-old commercial aquarium assistant came to the hospital after being pricked by a Marble motoro. The clinical picture in this case showed acute local pain with minimal systemic manifestations. This patient recovered after receiving symptomatic treatment and wound care. This case of envenomation accentuates the potential for injury among people coming in contact with a venomous Marble motoro.
Three-dimensional hierarchical Te-Si nanostructures.
Lim, Jae-Hong,Shin, Gyeong-Jin,Hwang, Tae-Yeon,Lim, Hyo-Ryoung,Lee, Young-In,Lee, Kyu-Hwan,Kim, Sung-Dae,Oh, Min-Wook,Park, Su-Dong,Myung, Nosang V,Choa, Yong-Ho RSC Pub 2014 Nanoscale Vol.6 No.20
<P>Three-dimensional hybrid nanostructures (i.e., Te 'nanobranches' on a Si 'nanotrunk' or Te 'nanoleaves' on a Si 'nanotrunk') were synthesized by combining the gold-assisted chemical etching of Si to form Si 'nanotrunks' and the galvanic displacement of Si to form Te 'nanobranches' or 'nanoleaves.' By adjusting the composition of the electrolyte used for the galvanic displacement reaction, the shape of the Te nanostructures could be changed from nanoleaves to nanobranches. The Si nanotrunks with Te nanobranches showed stronger luminescent emission in the visible region, with their Raman spectrum having a higher wave number, owing to their grain size being larger. This suggested that the optical and photoelectrochemical properties of Te-Si hybrid nanostructures depend on their shape and size. Using this approach, it should be possible to fabricate various hierarchical nanostructures for use in photoelectronic and photoelectrochemical devices.</P>
소아의 에틸렌글리콜 및 메탄올 중독에서 Fomepizole의 효과
민하나 ( Ha Na Min ),황윤정 ( Yoon Jung Hwang ),고동률 ( Dong Ryul Ko ),주영선 ( Young Seon Joo ),공태영 ( Tae Young Kong ),좌민홍 ( Min Hong Choa ),박인철 ( In Cheol Park ),정성필 ( Sung Phil Chung ) 대한임상독성학회 2017 대한임상독성학회지 Vol.15 No.2
Purpose: The purpose of this study is to evaluate the effectiveness and adverse effect of fomepizole in the management of acute ethylene glycol or methanol poisoning in children. Methods: Databases such as PubMed, Embase, Cochrane library, and KoreaMed were searched using terms related to fomepizole, ethylene glycol, methanol and pediatric. All studies, regardless of study design, reporting effectiveness or safety endpoints in children were included. Reference citations from identified publications were reviewed. Only reports written in English or Korean languages were included. The reference search was performed by two authors. Results: Twenty-two relevant literatures were finally included. They were one narrative review, 4 retrospective case series, and 17 case reports (19 cases). Case reports were classified as 5 fomepizole only, 8 fomepizole with other therapies, and 6 no fomepizole. All patients from the literatures were fully recovered without long term sequelae. Adverse effects of fomepizole were reported including anaphylaxis, thrombophlebitis and nystagmus. Conclusion: There are insufficient literatures regarding fomepizole treatment in children with ethylene glycol or methanol poisoning. The benefits or harms are not clearly established based on the clinical evidences. More prospective comparative studies are required in the future.
박인철,좌민홍,김승호 대한응급의학회 2002 대한응급의학회지 Vol.13 No.4
Purpose: As the lay public indirectly acquires medical knowledge through the mass media, it is desirable to show medically correct care in movies or TV dramas. We evaluated whether the emergency care depicted in Korean box-office movies is appropriate and medically sound. Methods: We selected Korean movies which more than 100,000 peoples had seen in Seoul from 1996 to 2001. We excluded fantasy or historical movies from the list. After searching the emergency situations in videos, including cardiopulmonary arrest, loss of consciousness, injuries, and medical emergencies, we evaluated whether the needed care was provided and properly done and whether the result was medically sound. Results: During the 6-year period, we found 46 emergency situations in 80 movies (0.6 per movie). Loss of consciousness was the most common emergency situation (34.8%), followed by cardiopulmonary arrest (15.7%). Emergency care was provided in 24 situations (52.2%), but was appropriate in only 8 among those 24 situations. Regardless of care, 50% improved and another 36.4% improved without any interventions. There was total of 106 necessary actions in the 46 situations: for instance, EMS system activation, airway maintenance, breathing and circulation support, spinal cord protection, and hemostasis. Only 21 among the 106 necessary actions (19.8%) were done. Hemostasis by external compression was the most common action done (44.4%), and airway maintenance was the least (3.6%). Conclusion: We found that emergency care and its result were not properly depicted in Korean box-office movies. Emergency physicians and the medical community should pay attention to this problem and serve as medical advisors to guarantee a medically sound portrayal.
Phenylpropanolamine 음독 후 발생한 심근허혈
박종우,좌민홍,박준석,조광현,Park Jong Woo,Choa Min Hong,Park Joon Seok,Cho Kwang Hyun 대한임상독성학회 2003 대한임상독성학회지 Vol.1 No.1
Phenypropanolamine (PPA) is a sympathetic amine used in over-the-counter cold remedies and weight-control preparations. The side effects are hypertension, dysrhythmias, stroke, etc. The Food and Drug Administration (FDA) is taking steps to remove PPA from all drug products and has requested that all drug companies discontinue marketing products containg PPA due to high risk of hemorrhage stroke. But, in Korea now, patinets take products containg PPA with over the counter. We report here the case of PPA induced myocardial injury in a young woman who takes overdose for suicide.
일부 지역의 전화상담을 통해 얻어진 독성물질 노출정보와 응급실 기반 중독 정보 분석
김수진 ( Su Jin Kim ),좌민홍 ( Min Hong Choa ),박종수 ( Jong Su Park ),이성우 ( Sung Woo Lee ),홍윤식 ( Yun Sik Hong ) 대한임상독성학회 2014 대한임상독성학회지 Vol.12 No.1
Purpose: The purpose of this study is to find differences in the demographics of toxic exposed patients and substance between call based poison information data and hospital based poison information data. Methods: Seoul 1339 call-response data were used as call based poison data and toxic related injury surveillance data of the Korean center for disease control and prevention (KCDC) were used as hospital based poison data. Age, sex, the kind of exposed substance, reasons for exposure, and exposure routes were compared between two data sets. We analyzed the presence or not of documentation on the name and amount of exposed substance, symptoms after exposure in call based poison data. Results: Seoul1339 poison data included a total of 2260 information related to toxic exposure and KCDC poison data included 5650 poison cases. There was no difference in sexual distribution. Pediatric exposure and accidental exposure were more common in call based poison data. The most common exposed substances were household products in call based poison data and medicines in hospital based poison data, respectively. Documents regarding amount and time of toxic exposure and symptoms after toxic exposure were not recorded exactly in call based poison data. Conclusion: There were significant differences in age, reasons for toxic exposure, and the kinds of exposed substances. Poison information data from both pre-hospital and hospital must be considered.
Lee, Jimin,Hwang, Tae-Yeon,Kang, Min Kyu,Lee, Gyutae,Cho, Hong-Baek,Kim, Jongryoul,Choa, Yong-Ho Elsevier 2019 APPLIED SURFACE SCIENCE - Vol.471 No.-
<P><B>Abstract</B></P> <P>We propose the substitution of some Co atoms in SmCo nanofibers with earth-abundant Fe as a means to prepare low-cost magnets with enhanced intrinsic magnetic properties compared to those of pure SmCo. To investigate the effect of Fe substitution upon microstructural and magnetic properties, we synthesized SmCoFe nanofibers (150–200 nm diameter) having various degrees of Fe substitution (0, 5, 10, 20, and 40 at%) <I>via</I> electrospinning and subsequent reduction using CaH<SUB>2</SUB>. All Fe-substituted samples showed an enhancement in (<I>BH</I>)<SUB>max</SUB> as compared to their non-substituted counterpart. Interestingly, substituting appropriate amount of Fe for Co enabled simultaneous increase of <I>M<SUB>s</SUB> </I>, <I>H<SUB>ci</SUB> </I> and thus (<I>BH</I>)<SUB>max</SUB> of the SmCo nanofibers, resulting from an effective exchange-coupling effect: Superior <I>H<SUB>ci</SUB> </I> (about 7375 Oe) and a (<I>BH</I>)<SUB>max</SUB> (about 13.17 MG·Oe) over 153% that of non-substituted SmCo nanofibers were obtained in the 10 at% Fe-substituted sample. This work describes the synthesis of SmCoFe ternary magnetic nanofibers and elucidates the phase formation mechanism and the effect of Fe substitution in optimizing magnetic performance. This understanding can be extended to the synthesis of other SmCo phases having different chemical compositions and may enable access to a path far beyond the limitations of traditional magnetic materials.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Synthesis of Fe-substituted SmCo nanofibers <I>via</I> electrospinning and reduction. </LI> <LI> Investigation of microstructural and magnetic properties according to Fe content. </LI> <LI> Phase formation mechanism and Fe substitution effect in reduction–diffusion process. </LI> <LI> High (<I>BH</I>)<SUB>max</SUB> (13.17 MG·Oe) with 10 at% Fe, over 153% that of pure nanofiber. </LI> <LI> Overall potential greatly exceeding the limitations of the SmCo binary magnet. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>