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The consideration about the shielding effect of LEDITE (LEDITE를 이용한 방사선 차폐시설에 관한 고찰)

  • Min Je-soon;Lee Je-hee;Park heung-deuk
    • The Journal of Korean Society for Radiation Therapy
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    • v.15 no.1
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    • pp.11-18
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    • 2003
  • The concrete is usually used to build a radiation therapy facility and the enough concrete thickness for high energy x-ray beam is about 1 meter. But if the space is not enough to build a radiation therapy facility with concrete, the substitute for concrete is needed, and the Ledite can be a good substitute for concrete. In this study, we compared the Ledite with the concrete. The comparing list are the needed shielding thickness, the period of construction and the cost.

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Treatment Results of Capitellum Fractures (상완골 소두 골절의 치료결과)

  • Park, Jin-Soo;Chung, Yung-Khee;You, Jung-Han;Noh, Gyu-Cheol;Chung, Kook-Jin;Jung, Sung-Ook
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.4 no.2
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    • pp.116-121
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    • 2005
  • Purpose: Isolated capitellar fractures are rare, intra-articular fractures requiring an aggressive management regimen. Review the outcome after open reduction and internal fixation of the capitellar fractures. Materials and Methods: From 1998 to 2004, 4 patients with displaced fractures of the humeral capitellum were treated by open reduction and internal fixation of the capitellar fragments with cannulated screws. By use of the criteria of Bryan and Morrey et al, there were 3 type I fractures, 1 type III fracture. A lateral approach was used. The elbows were immobilized postoperatively for 4 to 28 days We evaluated the range of motion, stability, and pain using the criteria of Mayo score. Results: The follow-up period ranged from 12 to 36 months (mean, 15months). Three patients had a stable, pain-free elbow with good range of motion at follow-up. One patient with a neglected capitellar fracture have felxtion cpontracture of 40 degrees with 100 degrees of further felxion(total arc: 60) due to poor compliance to the postoperative rehabilitation. All fractures healed, and there was no evidence of avascular necrosis or degenerative change. Conclusion: Capitellar fractures, rare in case, gave a good result after open reduction and simple internal fixation with cannulated screws without any problem.

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A Biomechanical Comparative Analysis between Single-Radius and Multi-Radius Total Knee Arthroplasty for Sit-to-Stand Movement (앉았다 일어나는 동작동안 단축회전반경 무릎인공관절 수술자와 다축회전반경 무릎인공관절 수술자의 운동역학적 비교분석)

  • Jin, Young-Wan
    • Journal of Life Science
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    • v.16 no.5
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    • pp.773-779
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    • 2006
  • Eight of the individuals had a unilateral S-RAD TKA and Multi-Radius TKA ($Scorpio^{TM}$ PS, Howmedica-Osteonics, Inc.). The instrument were used Peak Motion Measurement $System^{TM}$, $MYOPAC^{TM}$EMG System, KIN-COM $III^{TM}$ System. The Figure 3 shows that the average time for the S-RAD group to accomplish the sit-to-stand movement was 1.59 s, which was 0.19 s less than the M-RAD group (p= 0.033). In Figure 5, the S-RAD TKA group tended to have $7^{\Omega}{\cdot}S^{-1}$ less trunk flexion velocity than that of the M-RAD group (p= 0.058). The Figure 6 shows that the S-RAD TKA limb tended to have less ADD displacement (p = 0.071) than that of the M-RAD TKA limb. We failed to find significant differences for ABD and ADD displacements between the S-RAD and M-RAD N-TKA limbs (p= 0.128 and 0.457, respectively). The VM of the S-RAD TKA limb demonstrated significant less RMS EMG than that of the M-RAD TKA limb from $60^{\Omega}$ to $15^{\Omega}$ of knee flexion (p 0.05). The VL of the S-RAD TKA limb also demonstrated significant less RMS EMG than that of the M-RAD TKA limb from $60^{\Omega}$ to $45^{\Omega}$ of knee flexion (p 0.05). Similar to the VM and VL, the RF of the S-RAD TKA limb showed less RMS EMG than that of the M-RAD TKA limb from $60^{\Omega}$ to $30^{\Omega}$ of knee flexion (p 0.05).

Studies on peptide during soybean-koji preparation -Part III Amino acid sequence of oligopeptides formed during soybean-koji preparation- (콩고오지 제조중(製造中)의 peptide에 관(關)한 연구(硏究) -제3보(第三報) 콩고오지 제조중(製造中)에 생성(生成)되는 저급(低級) peptide의 구조(構造)-)

  • Kim, Ze-Uook
    • Applied Biological Chemistry
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    • v.6
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    • pp.107-117
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    • 1965
  • (1) In order to study the specificity of Aspergillus soya protease to soybean protein, as well as the types of peptides formed during soybean-koji prerapation the amino acid sequence for the di & tripeptide and N-terminal amino acid residue and C-terminal amino acid residue were identified. As the results of the study, the following were obtained. Gly, Glu. Ala. Ser. Glu. Ser. Ala. Val (Cys, Glu, Ser, Ala, Arg, Try, Leu or Ileu) Asp. Phe (His, Arg, Cys, Asp, Ser, Ala, Leu or Ileu) Glu. Ala (Cys, Gly, Met) Glu. Ala (Asp, Glu,) Gly. Met (Asp, Glu, Ala, Tyr, Leu or Ileu, Lys,) Gly. Leu or Ileu (His, Asp, Glu, Gly, Ser, Lys, Thr, Phe,) Cys. Gly (Asp, Tyr,) Glu. Pro (Asp, Glu, Ser, Gly, Thr, Ala, Val, Leu or Ileu) Try. Ser (Gly, Glu, Arg, Ala, Met, Leu or Ileu,) Asp. Met (Asp, Glu, Ala, Try, Pro, Leu or Ileu,) His Thr (Ser, Gly, Tyr, Pro, Leu or Ileu,) Glu. Gly (Asp, Ala, Ser, Glu,) Leu or Ileu (2) It has revealed that Aspergillus soya protease has considerably wider range of specificity than that of chymotrypsin, pepsin and trypsin but not mold protease and Aspergillus saitoi protease. It can be said that Asp. soya protease split the bond adjacent to glutamic acid, aspartic acid, glycine, serine, alanine, cystine, tryptophan, histidine preferably acidic amino acid as C-terminal amino acid residue.

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Development of Matrix for the Immobilization of High Level Radioactive Waste : Study on the Synthesis of Ce-pyrochlore (고준위 핵페기물의 고정화를 위한 메트릭스 개발 : Ce파이로클로어 합성 연구)

  • ;;;Yudintsev, S. V²
    • Economic and Environmental Geology
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    • v.35 no.2
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    • pp.97-102
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    • 2002
  • Ce-pyrochlore (CaCe $Ti_2 $O_7)was synthesized to study its properties and phase relations in CaO-Ce $O_2$-Ti $O_2$ system because Ce-pyrochlore was known as a promising material for the immobilization of radioactive actinide. The samples were prepared from the high purity starling materials under the pressure of 200~400 kg/$\textrm{cm}^2$ at room temperature, and annealed at 1000~ 150$0^{\circ}C$. The Synthesized samples were analysed and indentified with XRD and SEM/EDS methods. The optimal formation condition of Ce-pyrochlore was at 130$0^{\circ}C$ under $O_2$ atmosphere and the chemical composition of it wasCa$Ca_{1-x}Ti_{2-y}O_{7-x-2y}$(x=0.03-0.05, y=0.02~0.04) At temperature between 130$0^{\circ}C$ 140$0^{\circ}C$, Ce-pyrochlore underwent rapidly the incongruent decomposition to perovskite. Ce-perovskite, a partial solid solution between perovskite and loparite (C $e_{0.66}$Ti $O_3$), was observed as a major phase above 140$0^{\circ}C$.>.

Phylogenetic Relationships of Mushroom Agrocybe spp. Based on rDNA-ITS Analysis (rDNA-ITS분석에 의한 볏짚버섯 (Agrocybe spp.) 수집균주의 계통분류학적 특성구분)

  • Cheong, Jong-Chun;Lee, Myung-Chul;Jang, Kab-Yeul;Jhune, Chang-Sung;Lee, Chan-Jung
    • The Korean Journal of Mycology
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    • v.37 no.1
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    • pp.11-18
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    • 2009
  • Phylogenetic relationships were investigated in the mushroom genus Agrocybe based on sequence data from the internal transcribed spaces(ITS) of nuclear ribosomal DNA(rDNA). Thirty strains including Agrocybe aegerita, A. grocybe cylindracea, A. grocybe praecox, A. grocybe pediades and Unknown Agrocybe species were subjected for the analysis. The Agrocybe spp. were separated into eight distinct groups. Phylogenetic analysis divided these species into eight groups as follows: A. chaxingu within group I, A. salicacola within group II, A. cylindracea and A. aegerita within group III, Agrocybe sp. within group IV and V, and other Agrocybe spp. were grouped within VI, VII, and VIII.

Flora of Vascular Plants in Mt. Maebong (Inje, Gangwon-do) (매봉 지역(강원도 인제군)의 관속식물상)

  • Bak, Gippeum;Kim, Sang Jun;Hwang, Hee Suk;Park, Jin Sun;An, Jong Bin;Shin, Hyun Tak;Jung, Su Young;Kim, Hee Chae
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.04a
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    • pp.28-28
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    • 2018
  • 본 연구는 강원도 인제군 매봉 지역 일대를 중심으로 식물상 조사를 수행하였다. 관속식물은 73과 173속 228종 3아종 28변종 6품종으로 총 265분류군으로 조사되었다. 분류군별로는 양치식물이 5과 14분류군, 나자식물 1과 3분류군, 쌍자엽식물 60과 182분류군, 단자엽식물 7과 29분류군으로 확인되었다. 주요 식물로는 특산식물 고려엉겅퀴(Cirsium setidens), 무늬족도리풀(Asarum versicolor), 병꽃나무(Weigela subsessilis) 등 8과 9분류군, 희귀식물은 멸종위기종(CR) 긴개별꽃(Pseudostellaria japonica), 애기가물고사리(Woodsia glabella) 2분류군, 위기종(EN) 댕강나무(Abelia mosanensis) 1분류군, 취약종(VU) 멱쇠채(Scorzonera austriaca subsp. glabra) 1분류군, 약관심종(LC)인 과남풀(Gentiana triflora var. japonica), 금강제비꽃(Viola diamantiaca), 너도바람꽃(Eranthis stellata) 등 9분류군으로 총 13분류군이 확인되었다. 환경부지정 특정식물종은 V등급 1분류군, IV등급 2분류군, III등급 13분류군이 확인되었다. 귀화식물은 단풍잎돼지풀(Ambrosia trifida), 달맞이꽃(Oenothera biennis), 닭의덩굴(Fallopia dumetorum) 등 6과 11분류군이 확인되었다. 산림청에서 지정한 특별산림보호대상종은 댕강나무(Abelia mosanensis), 참배암차즈기(Salvia chanryoenica)가 확인되었다. 유용식물로는 용도를 모르는 96분류군(36.2%)를 제외하면 169분류군(63.8%)이 자원식물로 이용가치가 있는 것으로 나타났다. 이들을 용도에 따라 구분해보면 식용 114분류군(33.2%), 섬유용 5분류군(1.5%), 약용 82분류군(23.9%), 관상용 33분류군(9.6%), 사료용 94분류군(27.4%), 산업용 1분류군(0.3%), 염료용 3분류군(0.9%), 목재용 11분류군(3.2%)으로 확인되었다.

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The Flora of Mt. Munsu in Bonghwa-gun (봉화군 문수산의 식물상)

  • Byeon, Jun Gi;Lee, Dong Hyuk;Heo, Tae Im;Lee, Jun Woo;Park, Byeong Joo;Kim, Seong Bin;Shin, Jae Kwon;Kim, Dong Kap
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.04a
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    • pp.25-25
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    • 2018
  • 본 연구는 경상북도 봉화군에 위치한 문수산 일대의 관속식물상을 파악하고자 수행되었다. 2010년 3월부터 2017년 11월까지 계절별 출현식물을 대상으로 총 12회에 걸쳐 조사를 실시하였다. 조사지 내 관속식물은 85과 241속 372종 5아종 58변종 7품종으로 총 442분류군이 분포하는 것으로 조사되었으며, 이는 경상북도 관속식물 1,684분류군(Korea National Arboretum, 2016)의 26.2%, 한반도 관속식물 4,499 분류군(Korea National Arboretum, 2018; Http://www.nature.go.kr/kpni/)의 9.8%에 해당되는 것으로 분석되었다. 문수산 일대의 한국특산식물은 12분류군(세잎승마, 할미밀망, 은꿩의다리, 노랑갈퀴, 고려엉겅퀴 등), 산림청 지정 희귀식물은 VU등급(주목, 백작약, 꼬리진달래 등) 5분류군, LC등급(쥐방울덩굴, 도깨비부채, 태백제비꽃, 꽃개회나무 등) 10분류군으로 총 15분류군이 분포하는 것으로 조사되었다. 또한, 식물구계학적 특정식물 V등급 2분류군, IV등급 5분류군, III등급 16분류군, II등급 25분류군, I등급 30분류군, 외래식물은 서양벌노랑이, 토끼풀, 달맞이꽃, 미국가막사리, 개망초, 주걱개망초, 털별꽃아재비, 서양민들레, 오리새, 큰김의털 등 10분류군으로 도시화지수(%) 3.1%, 귀화율은 2.3%에 해당되는 것으로 조사되었다. 조사된 식물을 용도별로 구분하면 식용식물 338분류군(76.5%), 섬유용식물 3분류군(0.7%), 약용식물 75분류군(17.0%), 관상용식물 21분류군(4.8%), 목초용식물 95분류군(21.5%) 목재용식물 16분류군(3.6%) 등으로 분석되었다. 본 연구가 봉화군 문수산 일대의 효율적인 관리 및 보전 방안을 마련하기 위한 기초자료로 활용 될 것이라 기대한다.

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Prognostic Factors and Scoring Systems for Non-Small Cell Lung Cancer Patients Harboring Brain Metastases Treated with Gamma Knife Radiosurgery

  • Eom, Jung-Seop;Cho, Eun-Jung;Baek, Dong-Hoon;Lee, Kyung-Nam;Shin, Kyung-Hwa;Kim, Mi-Hyun;Lee, Kwang-Ha;Kim, Ki-Uk;Park, Hye-Kyung;Kim, Yun-Sung;Park, Soon-Kew;Cha, Seong-Heon;Lee, Min-Ki
    • Tuberculosis and Respiratory Diseases
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    • v.72 no.1
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    • pp.15-23
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    • 2012
  • Background: The survival of non-small cell lung cancer (NSCLC) patients with brain metastases is reported to be 3~6 months even with aggressive treatment. Some patients have very short survival after aggressive treatment and reliable prognostic scoring systems for patients with cancer have a strong correlation with outcome, often supporting decision making and treatment recommendations. Methods: A total of one hundred twenty two NSCLC patients with brain metastases who received gamma knife radiosurgery (GKRS) were analyzed. Survival analysis was calculated in all patients for thirteen available prognostic factors and four prognostic scoring systems: score index for radiosurgery (SIR), recursive partitioning analysis (RPA), graded prognostic assessment (GPA), and basic score for brain metastases (BSBM). Results: Age, Karnofsky performance status, largest brain lesion volume, systemic chemotherapy, primary tumor control, and medication of epidermal growth factor receptor tyrosine kinase inhibitor were statistically independent prognostic factors for survival. A multivariate model of SIR and RPA identified significant differences between each group of scores. We found that three-tiered indices such as SIR and RPA are more useful than four-tiered scoring systems (GPA and BSBM). Conclusion: There is little value of RPA class III (most unfavorable group) for the same results of 6-month and 1-year survival rate. Thus, SIR is the most useful index to sort out patients with poorer prognosis. Further prospective trials should be performed to develop a new molecular- and gene-based prognostic index model.

Operative Treatment of Tibial Plateau Fractures (경골과 골절의 수술적 치료 결과)

  • Shin, Duck-Seop;Seong, Byeong-Yeon;Kim, Dong-Won
    • Journal of Yeungnam Medical Science
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    • v.18 no.2
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    • pp.187-198
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    • 2001
  • Background: The purpose of this study was to evaluate the relationship between variable factors and clinical results following the operative treatment of the tibial plateau fractures. Materials and Methods: The clinical and radiological analysis was performed on 29 cases of the tibial plateau fractures who had been treated with operative treatment and followed up for more than 1 year from January 1991 to December 1997. The analysis of clinical results was performed dividing into age, cause of injury, fracture type of Schatzker classification, associated soft tissue injury and method of operative treatment. Results: According to Schatzker classification, 2 cases(6.9%) were type I, 11 cases(37.9%) were type II, 1 case(3.5%) was type III, 5 cases(17.2%) were type IV, 4 cases(13.8%) were type V, and 6 cases(20.7%) were type VI. In all cases, bony unions were obtained. According to Blokker evaluation, 23 cases(79.3%) of 29 cases were acceptable. Conclusion: We could expect good clinical results if early knee joint mobilization following minimal invasive open reduction and internal fixation could be obtained. Bad clinical results were related with young age group under 30, more than Schatzker classification type IV of high energy trauma and associated injury of anterior cruciated ligment or meniscus.

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