• Title/Summary/Keyword: UK

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Self-starting vector phase conjugate laser oscillator in inverted Nd:YAG

  • Kim, D.H.;Udaiyan, D.;Green, R.P.M.;Crofts, G.J.;Damzen, M.J.
    • Journal of the Optical Society of Korea
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    • v.1 no.1
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    • pp.41-43
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    • 1997
  • We report the operation of a self-adaptive vector phase conjugate laser (VPCL) oscillator which compensates intracavity polarization distortion and wavefront aberration simultaneously. The VPCL in Nd:YAG gain media produce an output with energy of 125mJ in a 20ns single-longitudinal-mode pulse at 10Hz, which is unaffected by intracavity polarization distortion.

In-Vitro Study of Urokinase Thrombolysis Following Stereotactic Aspiration of Intracerebral Hematoma

  • Son, Wonsoo;Park, Jaechan;Kang, Dong-Hun;Han, Young-Min;Choi, Yeon-Ju;Ohk, Boram
    • Journal of Korean Neurosurgical Society
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    • v.63 no.3
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    • pp.380-385
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    • 2020
  • Objective : A consensus regarding the ideal regimen for urokinase (UK) thrombolysis subsequent to stereotactic spontaneous intracerebral hemorrhage aspiration has yet to be established. The purpose of this study is to evaluate the efficacy of UK thrombolysis relative to when the regimen is changed. Methods : Venous blood from 30 heathy volunteers was obtained for this in-vitro study. Various concentrations of UK solution were added to microcentrifuge tubes containing the clotted blood. The efficacy of UK thrombolysis was identified by checking the weight of lysed hematoma following various time intervals with different concentrations of UK solution. Group one, the "3×4" group involved four administrations every 3 hours over 12 hours, and group two, the "6×2" group involved two administrations every 6 hours over 12 hours. Results : More hematoma was lysed in the 3×4 group than the 6×2 group across all concentration levels (however, the differences were only significant between groups at the 500 and 1000 IU concentration levels, p<0.05). There were no significant differences of lysed hematoma among the various UK solution concentrations within groups. Conclusion : This study suggests that frequent administrations of UK thrombolysis may result in a greater degree of lysed hematoma in comparison to a higher concentration of UK.

Prospects for e-Science In Korea : The role and impacts ol Korea-UK collaboration

  • Kim, Cha-Young;Suh, Jee-Hyun;Tomlinson, Mark
    • Korea Information Processing Society Review
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    • v.15 no.2
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    • pp.15-28
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    • 2008
  • The Korea UK e-Science Collaboration project has been aimed at supporting research and collaboration between Korean and UK researchers. Its goal is to benefit the nation by reducing cost and time in constructing the National e-Science Research Environment' by studying and benchmarking the cases in countries that have already procured advanced technologies in the area. Two joint workshops were held in a year where researchers from the two countries had the opportunities to share their research results with each other. Also, the project has supported exchanges of researchers fostering expertise in the field. In the course of the project, the e-Science Centre in the UK and KISTI have signed MoU(Memorandum of Understanding) in 2006. Moreover, there have been active research collaboration between Korea and the UK. The University of Southampton will share the BioSimGrid data with the Korean counterpart, and the University of York has provided the AURA software. In the future, KISTI and the UK NGS(National Grid Service) will organize a working group at OGF that will work mainly on the standardization of Parameter Sweep and bring it to lead the global standard. KISTI will include its own AURORA system into OMI-UK software stack, which will enable access to NGS resources through AURORA user application. The collaboration with the UK has opened up more opportunities for collaboration with other countries as well. KISTI and HLRS in Germany have agreed to share the COVISE and will have research exchanges. As such, it is expected that Korea will play a major role in e-Science research by building strategic and systematic collaborative relations with its International partners.

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Profiles of Local Fibrinolytic Activity before and after Urokinase Injection Into the Human Empyema Cavity (농흉환자에서의 늑막강내 유로키나제주입 전후의 섬유소 용해에 관한 연구)

  • Kim, Yong-Hoon;Kim, Jong-Bong;Moon, Jong-Ho;Song, Dong-Wha;Kim, Hyeon-Tae;Yang, Dong-Ho;Lee, Sang-Moo;Uh, Soo-Taek;Park, Choon-Sik
    • Tuberculosis and Respiratory Diseases
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    • v.40 no.4
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    • pp.378-383
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    • 1993
  • Background: In recent reports, it has been reported that increased coagulation and decreased fibrinolytic activity has been responsible for abnormal fibrin turnover in exudative pleural effusion. In the cases of empyema, the fibrinopurulent stage is characterized by the fibrin deposition resulting in formation of limiting membranes in the visceral and parietal pleura. Recently attention has been focused on intrapleural fibrinolytic therapy capable of removing intrapleural fibrin deposits by urokinase (UK) in the treatment of empyema. However, these clinical trials have provided the clinical evidences for resolution of pleural loculation after intrapleural urokinase injection (UK-injection), the profiles of fibrinolytic activity following the treatment were still not investigated. Therefore in order to demonstrate the fibrinolytic evidences behind the clinical efficacy of intracavitary UK-injection, we examined intrapleural plasminogen activator activity (PA-activity) and D-dimer (D-Di) concentrations before and after each repeated UK-injection into the pleura in subjects with loculated empyema cavity. Methods: In a group of 14 patients with multiple loculated empyema cavity, PA-activity and D-Di concentrations were measured before and after repeated UK-injection. One hundred thousand IU of UK was injected at each time and all sujects had at least two times of UK injection accoring to clinical decisions. Nine out of 14 sujects had three times of UK-injection. Results: The mean (${\pm}SE$) PA-activity prior to treatemnt was $10.5{\pm}7.0$ and it was increased to $91.9{\pm}27.0,\;432.3{\pm}177.1,\;170.0{\pm}85.3$ IU tPA/ml after first, second and third time of UK-injection respectively (p<0.01). D-Di concentrations were also increased from $4.16{\pm}1.06{\times}10^5$ to $9.62{\pm}1.54{\times}10^5,\;12.31{\pm}1.89{\times}10^5,\;8.54{\pm}1.56{\times}10^5$ ng/ml in the same order as above (p<0.05). Conclusion: The suppressed fibrinolytic activity in the empyema cavity get removed sinificantly after inrracavitary injection of urokinase by generation of additional intrapleural plasmin.

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Latent fingerprint development from rubber gloves using MMD I (Multimetal deposition I)

  • An, Jaeyoung;Kim, Heesu;Oh, Jungmin;Han, Sooyong;Yu, Jeseol
    • Analytical Science and Technology
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    • v.33 no.2
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    • pp.108-114
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    • 2020
  • Gloves are very important evidence at a crime scene; specifically, rubber gloves can be found easily at homes. Therefore, crime scene investigators attempt to develop fingerprints inside the rubber gloves that are discovered, for identifying unknown suspects. This study compared the effectiveness of three different methods that are used for developing latent prints on gloves with aging time. These were the powder, cyanoacrylate fuming, and multi-metal deposition I methods. The powder method achieved good results for 1-3 days of aged prints, and the cyanoacrylate fuming method worked well on 2-week-old prints. In comparison, multi-metal deposition I method developed good quality fingerprints for 6 weeks of aging time.

The relation between perceived stress among unemployed younger adults and their level of social support: South Korea and the UK compared (청년실업자의 스트레스와 사회적 지지와의 관계: 한국과 영국 비교 연구)

  • Kim, Seonghee
    • Journal of Family Relations
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    • v.21 no.3
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    • pp.25-47
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    • 2016
  • Objectives: This research aimed to compare perceived stress among unemployed younger adults in South Korea and the UK, particularly the relation between perceived stress levels of unemployed younger adults and their perception of their level of social support including family support and community support. Method: In order to achieve a research purpose, this study undertook a quantitative analysis of 306 unemployed younger adults in portal sites of job recruiting centers in the UK and South Korea from the period of June to July 2014. Results: The analysis found that unemployed younger adults in the UK perceived higher levels of social support, family support among social support, and community support among social support than that of South Korea. Secondly, in the UK perceived levels of social support and community support among female unemployed younger adults outweighed that of male ones. Thirdly, in the dimension of perceived stress, unemployed younger adults in two countries reported opposite results via social class.