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Human Embryo Research and Tort Liability (배아연구와 불법행위책임)

  • Seo, Jong-Hee
    • The Korean Society of Law and Medicine
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    • v.12 no.1
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    • pp.227-255
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    • 2011
  • Recently, many nations said "yes" to human embryonic stem cell research, signing an executive order to permit funding for the research in the mame of achieving health and life of humankind. Human Embryo Research is permitted by our Bioethics & Biosafety Act. But, illegal research cannot be divorced from civil liability since it requires the destruction of eggs of fertilized eggs and personal rights of embryo-creator. After all, though we allow to do research embryo, we should control the capacity of abuse of embryo research for embryo-creator. If research violate the law(Bioethics & Biosafety Act or Civil Law, etc), it comes to a delict by pecuniary loss and non-pecuniary loss. When it comes to pecuniary loss, Human Embryo is not body but special property. Supreme Court maintained a stance that mental suffering is generally deemed as compensable for damages for the loss of property where a person's property right is invaded by a tort or non-performance of obligation. Thus, where mental suffering occurs, which cannot be compensated by recovery of property losses, the situation must be a special circumstance and the injured could claim consolation money for such losses only if the offender knew or would have known of such special circumstances(Supreme Court Decision 96Da31574 delivered on Nov, 26, 1996, etc.). That is to say, Supreme Court regards mental suffering through person's property right invaded by a tort as damages that have arisen through special circumstances. According to Civil law article 393 (2), the injured could claim consolation money for such losses only if only if the offender had foreseen or could have foreseen such circumstances. Also our court will solve through damages for non-pecuniary loss by complementary function of consolation money in that pecuniary loss could be difficult to valuate.

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Damage of Ibuprofen Suppository on Rectal Mucosa of Rats (이부프로펜 좌제의 흰쥐 직장점막 자극성 시험)

  • Lee, Sung-Hack;Kim, Moon-Kyoung;Han, Yong-Hae;Shim, Chang-Koo
    • Journal of Pharmaceutical Investigation
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    • v.24 no.3
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    • pp.115-129
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    • 1994
  • In the present study, quantitative and qualitative histology was used to assess the effects of ibuprofen suppositories with various treatments on the rectal mucosa of rats. Two suppositories were prepared with Witepsol W35 and compared with two commercial ibuprofen suppositories Reference I (Showa Pharm.ind., Tokyo, Japan), Reference II (P.Pharm., Seoul, Korea). Single and multiple dose(dosing interval 4 hr, n=4) studies were conducted. All suppositories significantly increased epithelial cell loss, but the extent of rectal irritation was variable. These studies showed that the incorporation of ibuprofen into the suppository bases increases the morphological change in rectal tissue both for the single and multiple administrations of suppositories, but which was significantly recovered within 24 hr although the interanimal variability in scores was very substantial. Multiple administration of ibuprofen suppositories caused significant damage to rectal mucosa, but it must be considered that these were under the severe condition, that is, interval of administration (4 hr) was three times shorter than normal interval of administration and dose was fifteen times larger than usual human dose. Aluminum oxide $(Al_2O_3)$, a dispersing agent, slightly increased the irritation of rectal mucosa in rats at 5 hr and 24 hr after multiple administration, but it was possible to ignore the difference of irritation in the data at 5hr and 24hr after single administration. Finally, it was concluded that Witepsol W35 and ibuprofen had a slight rectal mucosa-irritating effect on the usual human dose, and ibuprofen suppositories prepared with Witepsol W35 or Witepsol W35, $Al_2O_3$ showed almost similar extent of rectal irritation with commercial ibuprofen products.

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Cryo-SEM Methodology of Arabidopsis thaliana Stem Using High-Pressure Freezing (고압동결고정을 이용한 애기장대 줄기의 cryo-SEM 분석법)

  • Choi, Yun-Joung;Lee, Kyung-Hwan;Je, A-Reum;Chae, Hee-Su;Jang, Ji-Hoon;Lee, Eun-Ji;Kweon, Hee-Seok
    • Applied Microscopy
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    • v.42 no.2
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    • pp.111-114
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    • 2012
  • The scanning electron microscopy is an ideal technique for examining plant surface at high resolution. Most hydrate samples, however, must be fix and dehydrate for observation in the scanning electron microscope. Because the microscopes operate under high vacuum, most specimens, especially biological samples, cannot withstand water removal by the vacuum system without morphological distortion. Cryo-techniques can observe in their original morphology and structure without various artifacts from conventional sample preparation. Rapid cooling is the method of choice for preparing plant samples for scanning electron microscopy in a defined physiological state. As one of cryo-technique, high-pressure freezing allows for fixation of native non-pretreated samples up to $200{\mu}M$ thick and 2 mm wide with minimal or no ice crystal damage for the freezing procedure. In this study, we could design to optimize structural preservation and imaging by comparing cryo-SEM and convention SEM preparation, and observe a fine, well preserved Arabidopsis stem's inner ultrastructure using HPF and cryo-SEM. These results would suggest a useful method of cryo-preparation and cryo-SEM for plant tissues, especially intratubule and vacuole rich structure.

A Study on the Feasibility of IGCC under the Korean Electricity Market (국내 전력거래제도하에서 IGCC 사업성 확보를 위한 정책 제언)

  • Ko, Kyung-Ho
    • Journal of Hydrogen and New Energy
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    • v.22 no.1
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    • pp.118-127
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    • 2011
  • An IGCC was evaluated as one of the next generation technologies that would be able to substitute for coal-fired power plants. According to "The 4th Basic Plan of Long-term Electricity Supply & Demand" which is developed by the Electricity Business Acts, the first IGCC will be operated at 2015. Like other new and renewable energy such as solar PV, Fuel cell, The IGCC is considered as non-competitive generation technology because it is not maturity technology. Before the commercial operation of an IGCC in our electricity market, its economic feasibility under the Korean electricity market, which is cost-based trading system, is studied to find out institutional support system. The results of feasibility summarized that under the current electricity trading system, if the IGCC is considered like a conventional plant such as nuclear or coal-fired power plants, it will not be expected that its investment will be recouped within life-time. The reason is that the availability of an IGCC will plummet since 2016 when several nuclear and coal-fired power plants will be constructed additionally. To ensure the reasonable return on investment (NPV>0 IRR>Discount rate), the availability of IGCC should be higher than 77%. To do so, the current electricity trading system is amended that the IGCC generator must be considered as renewable generators to set up Price Setting Schedule and it should be considered as pick load generators, not Genco's coal fired-generators, in the Settlement Payment.

Study of Growth Disturbance and Endocrine, in the view of Oriental Medicine (소아 성장장애와 내분비에 대한 한의학적 고찰)

  • Jun Chan-Il
    • The Journal of Pediatrics of Korean Medicine
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    • v.15 no.1
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    • pp.105-115
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    • 2001
  • The relation of endocrine in the western medicine and zangfu-organ functions in Korean medicine, related to growth disturbance, was studied and derived the following results. 1. The hormone most related to growth disturbance is, directly secreted from the anterior pituitary or is stimulated and secreted in the target grands, growth hormone, thyroid, adrenocortical hormone, gonadial hormone and is insulin secreted from $\beta$ cell of langerhans' slands of pancreas. 2. the pituitary has the most close relation with the kidney in the five zang-organ. Because the kidney is innate origin(先天之本) and promotes qi and blood(生化氣血), stores the essence of life(藏精), dominates the bones(主骨) and promotes the marrow(生骨髓). Especially it is connected with brain(通於腦). 3. In the children growth, the endocrine action in the pituitary has the most close relation with the kidney, As in the reports of the brain and spinal cord, bone, store essence of life, sexual maturation and decline(kidney-qi, sexual functions of both sexes(天癸)) etc, and cause of cretinism, dwarf in the main subject. 4. Somatomedin is the most important factor of the growth factors, IGF in another word. The unification of IGF and secretion is controlled firstly according to growth hormone, however is very closely related to the nutrition status in the non-hormonic causes. Also, it is affected very much by the insulin. 5. Insulin is one of the important hormone related to the growth and is secreted from the pancreas. Pancreas belongs to the functional system of spleen in oriental medicine, thus the growth disturbance, occurred due to error in insulin secretion and nutrition(in another words, the lack of postnatal essential substance from food-stuff(水穀精氣)), is closely related to the spleen. 6. From the results driven above, the hormone action of endocrine and problem in secretion, related to the growth disturbance, must be focused on the differentiation of symptoms and signs of the kidney and the spleen in oriental medicine.

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A Study on Home Network Functional Model for Personal Area Network based Virtual Home Network (PAN (Personal Area Network) 기반 가상 홈 (Virtual Home) 지원을 위한 홈 네트워크 연동 모델 연구)

  • Joong Hyun Joong
    • Journal of the Korea Society of Computer and Information
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    • v.10 no.1 s.33
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    • pp.167-174
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    • 2005
  • With the progress of portable appliances such as cell phone and handhold PC, the popularization of Personal Area Network (PAN) and the diversification of services that are based on Personal Mobile Gateway (PMG) . To use home services at any time regardless of their Position, it needs a virtual home network that a home network and outside networks are finally integrated. Although interoperability among home appliances reached their service stage, research for services and middleware for new small scale network such as PAN is at an early stage. Traditional home network service/connection methods, terminal control schemes, and middlewares must be extended to accommodate PMG-based PAM. In this paper, we propose an integrated virtual home network Platform that guarantees seamless connections between home network and PAM. We also analyze indispensable functions and presents functions that should be added existent home gateway or home sewer by function.

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Comparison of Analysis Methods for Detection of Replication Competent Virus and Functional Titers of HIV-l Based Lentivirus Vector (HIV-l 유래 렌티바이러스 벡터의 복제가능 바이러스 검출과 역가측정 분석방법 비교)

  • Chang Seok Kee;Oh Il Ung;Jeong Jayoung;Ahn Kwang Soo;Sohn Yeowon
    • YAKHAK HOEJI
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    • v.49 no.3
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    • pp.217-224
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    • 2005
  • Human Immunodeficiency Virus type 1 (HIV-l) based lentivirus vector has demonstrated great potential as gene therapy vectors mediating efficient gene delivery and long-term transgene expression in both dividing and nondividing cells. However, for clinical studies it must be confirmed that vector preparations are safe and not contaminated by replication competent lentivirus (RCL) related to the parental pathogenic virus, HIV-l. In this study, we would like to establish the method for titration and RCL detection of lentivirus vector. The titration was determined by vector expression containing the green fluorescent protein, GFP in transduced cells. The titer was $1{\times}10^7$ Transducing Unit/ml in the GFP expression assay and $8.9{\times}10^7$ molecules/ml in the real-time PCR. Also, for the detection of RCL, we have used a combination method of PCR and p24 antigen detection. First, PBS/psi and VSV-G region in the genomic DNA of transduced cells was detected by PCR assay. Second, transfer and expression of the HIV-1 gag gene was detected by p24 ELISA. In an attempt to amplify any RCL, the transduced cells were cultured for 3 weeks (amplification phase) and the supernatant of amplified transduced cell was used for the second transduction to determine whether a true RCL was present (indicator phase). Analysis of cells and supernatant at day 6 in indicator phase were negative for PBS/psi, VSV-G, and p24 antigen. These results suggest that they are not mobilized and therefore there are no RCL in amplification phase. Thus, real-time PCR is a reliable and sensitive method for titration and RCL detection of lentivirus vector.

A Comparative Consideration of Treatment on Dementia in Oriental and Occidental Medicine (치매의 치료(治療)에 관(關)한 동서의학적(東西醫學的) 고찰(考察))

  • Lee, Dong-Weon;Shin, Gil-Jo;Lee, Won-Chul
    • The Journal of Dong Guk Oriental Medicine
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    • v.4
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    • pp.67-80
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    • 1995
  • This study was done in order to investigate the treatment of occidental and oriental medicine on dementia(mainly senile dementia and cerobrovascular dementia). The results were as follows ; 1. Dementia must treat a direct causes, but uncountable dementia(senile dementia) and cerobrovascular dementia can't treat at present. 2. Sciopsychological treatment in very important in dementia patient ; maintance of appropriate stimulation, psychological rest, physical examination, dietary cure and safety device is needed. On secondary mental disorder, antipsychotics, anxiolytics and antidepressants have to prescribe properly. 3. Treatments of Senile dementia(uncountable cerebral degenerative disease) proscribed hydergine which is peripheral vasodilator and physostigmine which increase cholinergic activity of brain, but this have slight effect on some patients. On treatments of cerobrovascular dementia, the medication that improved the cell metabolism and circulation of brain, this improved only a subjective symptom, but isn't foundamental treatment. 4. A tonic medicine is used basically, the methods are as follows. 1) Kenwihwadam(健胃火痰)-Sesimtang(洗心湯) 2) Bosiniksu(補腎益髓)-Hwansodan(還少丹) 3) Bosimiksin(補心益腎)-Gyuibitang(歸脾湯), Singyuo(神交湯) 4) Boheoansin(補虛安神)-Cilbokem(七福飮), sanggitang(生氣湯) 5) geoeohwalhyel(祛瘀活血)-tonggyuhwalhyeltang(通竅活血湯), 5. Acupuncture therapy on dementia used follow acupuncture point ; Yamen(啞門 GVl5), Laokung(勞宮 HC8), Tsusanli(足三里 ST36), Shenshu(腎兪 BL23), Tachui(大椎 GVl4), Chiuwei(鳩尾 CVl5), Sanyinchiao(三陰交 SP6), Yungchuan(涌泉 KI1), Shipsun(十宣), Shousanli(手三里 LI10), Taichong(太衝 LV3) In moxibustion therapy, Dachui(大椎 GVl4) point is used.

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Synthesis and Electrochemical Performance of Li2MnSiO4 for Lithium Ion Battery Prepared by Amorphous Silica Precusor (비정질 실리콘 산화물을 이용한 리튬망간실리콘산화물의 합성 및 전기화학적 특성 평가)

  • Jin, Yun-Ho;Lee, Kun-Jae;Kang, Lee-Seung;Jung, Hang-Chul;Hong, Hyun-Seon
    • Journal of Powder Materials
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    • v.19 no.3
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    • pp.210-214
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    • 2012
  • Mass production-capable $Li_2MnSiO_4$ powder was synthesized for use as cathode material in state-of-the-art lithium-ion batteries. These batteries are main powder sources for high tech-end digital electronic equipments and electric vehicles in the near future and they must possess high specific capacity and durable charge-discharge characteristics. Amorphous silicone was quite superior to crystalline one as starting material to fabricate silicone oxide with high reactivity between precursors of sol-gel type reaction intermediates. The amorphous silicone starting material also has beneficial effect of efficiently controlling secondary phases, most notably $Li_xSiO_x$. Lastly, carbon was coated on $Li_2MnSiO_4$ powders by using sucrose to afford some improved electrical conductivity. The carbon-coated $Li_2MnSiO_4$ cathode material was further characterized using SEM, XRD, and galvanostatic charge/discharge test method for morphological and electrochemical examinations. Coin cell was subject to 1.5-4.8 V at C/20, where 74 mAh/g was observed during primary discharge cycle.

Response of Saccharomyces cerevisiae to Ethanol Stress Involves Actions of Protein Asr1p

  • Ding, Junmei;Huang, Xiaowei;Zhao, Na;Gao, Feng;Lu, Qian;Zhang, Ke-Qin
    • Journal of Microbiology and Biotechnology
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    • v.20 no.12
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    • pp.1630-1636
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    • 2010
  • During the fermentation process of Saccharomyces cerevisiae, yeast cells must rapidly respond to a wide variety of external stresses in order to survive the constantly changing environment, including ethanol stress. The accumulation of ethanol can severely inhibit cell growth activity and productivity. Thus, the response to changing ethanol concentrations is one of the most important stress reactions in S. cerevisiae and worthy of thorough investigation. Therefore, this study examined the relationship between ethanol tolerance in S. cerevisiae and a unique protein called alcohol sensitive RING/PHD finger 1 protein (Asr1p). A real-time PCR showed that upon exposure to 8% ethanol, the expression of Asr1 was continuously enhanced, reaching a peak 2 h after stimulation. This result was confirmed by monitoring the fluorescence levels using a strain with a green fluorescent protein tagged to the C-terminal of Asr1p. The fluorescent microscopy also revealed a change in the subcellular localization before and after stimulation. Furthermore, the disruption of the Asr1 gene resulted in hypersensitivity on the medium containing ethanol, when compared with the wild-type strain. Thus, when taken together, the present results suggest that Asr1 is involved in the response to ethanol stress in the yeast S. cerevisiae.