• Journal of Korean Clinical Nursing Research
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• v.21 no.3
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• pp.309-318
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• 2015

Purpose: The purpose of this study was to examine the effects of foot mats on reducing levels of fatigue, discomfort, lower extremity edema and skin temperature in scrub nurses during surgery. Methods: This study employed one group repeated measures design in which 16 scrub nurses (ages 22-38) stood on steel footstools (SF) during scrub as the conventional test and stood on SF with foot mats as the experimental test. Levels of fatigue, discomfort, lower extremity edema and skin temperature were measured before the first surgical hand scrub and right after the first surgery of the day for 3 consecutive days in both tests. Results: The changes in levels of fatigue and discomfort were significantly different between tests (p<.001~.033). Edema, determined by the differences in circumferences of the ankles and calves before and after the surgery was also significantly different between groups (p=.001~.011). However, the change in skin temperature on the foot tops of both feet was not different between tests (p=.351~.467). Conclusion: The results of this study show that using foot mats on top of the steel footstool is effective in reducing the levels of fatigue, discomfort and lower extremity edema in scrub nurses during surgery.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.21 no.4
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• pp.413-422
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• 2014

Purpose: The purpose of this study was to identify the nutrition-related factors influencing the prevalence of pressure ulcers among patients admitted to an intensive care unit. Methods: Research participants were 112 patients who were admitted to the ICU of a university hospital. Data were collected through questionnaires which included general characteristics, diet-related characteristics, nutritional status, and pressure ulcer status. Multivariate logistic regression was used to identify independent factors association with prevalence of pressure ulcer Results: The prevalence of pressure ulcers was 58 patients (51.8%) at 10th day after ICU admission. In multivariate analysis, prevalence of pressure ulcers at 10th day in ICU was significantly higher in the nutritional risk group (OR=6.43), malnutrition group (OR=88.02), and deceased serum albumin group (OR=28.83). Conclusion: The results of this research indicate that scores on MNA (Mini Nutritional Assessment) and serum albumin were significant predictors of pressure ulcer prevalence in ICU patients. Therefore, regular MNA-SF and albumin checkups are needed to identify risk for pressure ulcer for ICU patients. In the case of decreased MNA-SF scores and serum albumin levels, more intensive pressure ulcer care is needed for ICU patients.

• KSBB Journal
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• v.9 no.3
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• pp.294-298
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• 1994

The medium additives such as CaCl2, glucose, fructose, glutamine, glutamate and lipids were examined to enhance recombinant ${\beta}$-galactosldase(${\beta}$-gal) production in batch and continuous two-stage bioreactor systems. The presence of each medium additive such as CaCl2, fructose, glutamate, cholesterol and tocopherol at AcNPV infection of Sf 21 cells had an effect on improved ${\beta}$-gal production. The recombinant ${\beta}$-gal production using the infection media supplemented with a mixture of 30mM $CaCl_2$, 2.2mM fructose, 4.1mM glutamate and 0.34mM cholesterol was increased by about 40%.

• The Bulletin of The Korean Astronomical Society
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• v.40 no.2
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• pp.47.3-48
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• 2015

We present environmental effects on the galaxy evolution in the Virgo cluster focusing on intracluster medium - interstellar medium (ICM-ISM) interactions and gravitational interactions. We identify signatures of these environmental effects for 21 massive late-type galaxies based on the visual inspection of high resolution HI data from VLA Imaging of Virgo spirals in Atomic gas (VIVA) survey comparing with multi-wavelength data. We classify galaxies into three subgroups showing different environmental effects. First and second groups includes galaxies influenced by ongoing/active and past ram pressure stripping effect, respectively. Third group consists of galaxies undergoing gravitational interactions. Additionally, we define neighbor galaxies for each VIVA galaxies utilizing kinematic data from Extended Virgo Cluster Catalog. Assuming that neighbor galaxies share similar levels of environmental effects with host VIVA galaxies, we investigate environmental effects on galaxy properties in different subgroups using SDSS optical and GALEX ultraviolet photometric data. We find that dwarf neighbor galaxies in first and second groups show rapid quenching of their star formation (SF), while massive counterparts are still in SF activity. On the other hand, most third group galaxies show hints of SF activity regardless of their mass. We conclude that SF and evolution of galaxy in the cluster environment is closely linked to ICM-ISM interactions and dwarf galaxies seem to be more sensitive to this effect compared to massive counterparts.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.4 no.2
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• pp.21-29
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• 2009

Objectives : The purpose of this study is to find out the effects of myofascial releasement on nuchal pain caused by traffic accidents. Methods : The 30 patients were divided into 2 groups : group A was treated except myofascial releasement and group B was treated with myofascial releasement. Both group were treated with acupuncture treatment, physical theraphy and herbal medication. Patients were evaluated by McGill Pain Questionnaire-Short Form(SF-MPQ), Visual Analogue Scale(VAS), Pain Disability Index(PDI) and Neck Disability Index(NDI). Results : 1. Both Group were significantly decreased in affective of SF-MPQ, VAS, after 10 times of treatment. 2. Group B compared with the Group A was significantly decreased in affective of SF-MPQ, NDI and PDI after 10 times of treatment. Conclusions : We found out that myofascial releasement is considered to be effective and useful on nuchal pain caused by traffic accidents.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.6A
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• pp.1033-1039
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• 2006

The purpose of this study are to evaluated bond, flexural properties and control of plastic shrinkage cracking of crimped type synthetic fiber with amplitude 6 mm and height 1.8 mm reinforced cement based composites. Bond and flexural test were conducted in accordance with the JCI-SF 8 and JCI SF-4 standard, respectively. The plastic shrinkage cracking test was conducted for evaluating the effect of fiber in reducing shrinkage cracking in cement based composites. Test results indicated that the crimped typel synthetic fibers performed significantly better than the straight type fiber in terms of interface toughness and pullout load and the crimped type synthetic fibers improved the flexural toughness of concrete. Also, the increasing the crimped type synthetic fiber volume fraction from 0.00% to 1.00% improved the plastic shrinkage cracking resistance. Specially, the effect of control of plastic shrinkage cracking is excellent at the more than 0.5% fibre volume fraction.

• Radiation Oncology Journal
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• v.24 no.4
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• pp.280-284
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• 2006

$\underline{Purpose}$: To evaluate biological characteristics of neutron beam generated by MC50 cyclotron located in the Korea Institute of Radiological and Medical Sciences (KIRAMS). $\underline{Materials\;and\;Methods}$: The neutron beams generated with 15 mm Beryllium target hit by 35 MeV proton beam was used and dosimetry data was measured before in-vitro study. We irradiated 0, 1, 2, 3, 4 and 5 Gy of neutron beam to EMT-6 cell line and surviving fraction (SF) was measured. The SF curve was also examined at the same dose when applying lead shielding to avoid gamma ray component. In the X-ray experiment, SF curve was obtained after irradiation of 0, 2, 5, 10, and 15 Gy. $\underline{Results}$: The neutron beams have 84% of neutron and 16% of gamma component at the depth of 2 cm with the field size of $26{\times}26\;cm^2$, beam current $20\;{\mu}A$, and dose rate of 9.25 cGy/min. The SF curve from X-ray, when fitted to linear-quadratic (LQ) model, had 0.611 as ${\alpha}/{\beta}$ ratio (${\alpha}=0.0204,\;{\beta}=0.0334,\;R^2=0.999$, respectively). The SF curve from neutron beam had shoulders at low dose area and fitted well to LQ model with the value of $R^2$ exceeding 0.99 in all experiments. The mean value of alpha and beta were -0.315 (range, $-0.254{\sim}-0.360$) and 0.247 ($0.220{\sim}0.262$), respectively. The addition of lead shielding resulted in no straightening of SF curve and shoulders in low dose area still existed. The RBE of neutron beam was in range of $2.07{\sim}2.19$ with SF=0.1 and $2.21{\sim}2.35$ with SF=0.01, respectively. $\underline{Conclusion}$: The neutron beam from MC50 cyclotron has significant amount of gamma component and this may have contributed to form the shoulder of survival curve. The RBE of neutron beam generated by MC50 was about 2.2.

• Journal of Sasang Constitutional Medicine
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• v.21 no.1
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• pp.63-78
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• 2009

1. Purpose This study has focused on response rates of the questionnaire which considered as a basic data to identify constitution for American. 2. Methods By analysing the tendency of the respondents who has defined constitution by clinical diagnosis and comparing of their answers, the result of their constitution analysis by our questionnaire were re-examed. The answer of each question to each constitution were tested how it is relevent to a scale of a constitution. Each item response rate on SF_SSCQ-A was analysed about those who had been tested and diagnosed as Taeyangin, Soyangin, Taeeumin, Soeumin respectively. 3. Results There were the 55 significant items; 13 Taeyangin items, 13 Soyangin items, 20 Taeeumin items, 9 Soeumin items. However, there were the 11 low response rate items (below 10 %) and 4 no response items.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2008.11a
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• pp.21-22
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• 2008

$SF_6/O_2$ 플라즈마 에칭을 통한 반도체 칩의 3차원 집적에 응용되는 through-silicon-via (TSV) 구조형성 연구를 수행하였다. Si via 형상은 $SF_6$, $O_2$의 가스 비율과 에칭이 되는 Silicon 기판의 온도에 의존함을 알수 있었다. 또한 Si via 형상에서 최소의 언더컷 (undercut) 과 측벽에칭 (local bowing) 은 black Si이 나타나는 공정조건에서 나타남을 확인하였다. 더 나아가 저온을 이용한 via 형성시 via 측벽에 형성되는 passivation layer와 mask의 성질이 저온으로 인해 high-aspect-ratio를 갖는 via를 형성할 수 있음을 알 수 있었다.

• Bulletin of the Korean Chemical Society
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• v.22 no.6
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• pp.616-622
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• 2001

Split-flow thin (SPLITT) cell Fractionation(SF) is a technique that allows separation of particulates and macromolecules into two fractions. A gravitational SF(GSF) system is constructed and tested for its applicability for separation of dust and ground water particulates. When tested with polystyrene latex particles, experimental data were in good agreements with theory. The 9.8 and 21.4㎛ polystyrene particles were successuflly separated in a continuous mode, where the mixture is continuously fed into the GSF channel allowing separation in a large sacle. The GSF system is successfully applied to continuous separation of dust and ground water particels based on the sedimentation coefficient, which is closely related to the particle size. The separations were confirmed by microscopy and energy-dispersive X-ray (EDX) analysos.