• Bulletin of the Korean Chemical Society
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• 제21권4호
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• pp.379-382
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• 2000

The temperature dependence of the kinetic parameters of the aspartase-catalyzed reaction has been examined in the direction of deamination. The pK1values at 37$^{\circ}C$, 25$^{\circ}C$, 16$^{\circ}C$ and 7$^{\circ}C$ were 6.2 $\pm$ 0.1, 6.3 $\pm$ 0.1, $6.7{\pm}0.3$ and 6.9 $\pm$ 0.3, respectively. On the other hand, the pK2 values at 37$^{\circ}C$,25$^{\circ}C$, 16$^{\circ}C$ and 7$^{\circ}C$ were 8.1 $\pm0.2$, 8.3 $\pm$ 0.2, 8.2 $\pm$ 0.3 and 8.0 $\pm$ 0.2,respectively. The enthalpy of ionization, DHion, calculated from the slope of pK1, are 6.0 $\pm$ 0.3 kcal/mol. These results validate the prediction that aspartase requires a histidine residue for a general base, and a cysteine (or having a carboxyl functional group) for a general acid.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제22권6호
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• pp.588-593
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• 2019

This study aimed to report three new cases of an association between two rare conditions, congenital portosystemic shunts (CPSS) and trimethylaminuria (TMAU), and the efficacy of endovascular closure of the CPSS for resolving TMAU. Between November 2014 and April 2017, 15 patients with CPSS were enrolled in this prospective study to assess the efficacy of percutaneous endovascular shunt closure. Three patients presented with clinical symptoms of TMAU that were confirmed by urine analysis of trimethylamine (TMA) and TMA n-oxide. One year after endovascular closure of the congenital portosystemic shunt, the same parameters were evaluated were obtained and the values were compared to the pretreatment values. The results indicated the disappearance of clinical symptoms of TMAU and normalization of the urine test parameters in two patients and no changes in one patient, who developed new portosystemic communications.

• 한국연소학회:학술대회논문집
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• 한국연소학회 2004년도 제29회 KOSCI SYMPOSIUM 논문집
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• pp.24-32
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• 2004

The characteristics of heat transfer from horizontal cylinder immersed in both a riser and downcomer of a circulating fluidized beds were investigated experimentally under different values of solids mass flux, superficial air velocity, particle size diameter, and different bed materials. The test results indicated that local heat transfer coefficients in both riser and downcomer are strongly influenced by angular position, and mass flux, as well as by particle size and bed materials. The local heat transfer coefficients around a circumference of the cylinder inside a riser and downcomer of a CFB exhibited a general tendency to increase with decreasing particle size and increasing solids mass flux and vary with different bed materials. Also the averaged heat transfer coefficient calculated from local heat transfer coefficient exhibited the same trend as a local i.e increase with decrease particle size and increasing solids mass flux and vary with varying bed materials. The general trend for a riser local heat transfer coefficient is decrease with increase angle until ${\Phi}$ = 0.5-0.6 (Where at angle =180$^{\circ}$ ${\Phi}$ =1). Also the general trend for a local heat transfer coefficient in downcomer is to increase with increase the angle until ${\Phi}$= ${\theta}/{\Pi}$ = 0.3-0.5 (Where at angle =180$^{\circ}$ ${\Phi}$ =1). Comparison the results of the heat transfer in the riser and downcomer of a circulating fluidized beds shows that they have approximately the same trend but the values of heat transfer coefficients in riser is higher than in downcomer.

• 부모자녀건강학회지
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• 제8권2호
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• pp.97-111
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• 2005

Purpose: The purpose of the study was to analyze the families values of the family with hospitalized children in order to offer descriptive data, which will facilitate family adjustment in those families. Method: It's intended in this study, as of descriptive approach, to verify the theoretical framework based on McCubbin's Resiliency Model and to examine the influence of family values on family adaptation. The survey was conducted from June 20, 2003 to November 30, 2003 and the analysis included 202 parents of the hospitalized children. The data analysis utilized SPSS 11.0 program. Result: The correlation coefficients among major variables showed that family stressor was positively related with family strains(r=.249, P<.01), and negatively related with family hardiness(r=-.183, P<.05). Family strains was negative related with general family value(r=-.243, p<.01), and family adaptation(r=-.505, P<.05). Correlations of general family value was positive with family hardness (r=.153, p<.05), and family adaptation (r=.200, p<.01). Conclusions: There was correlating relationship between family strains and family adaptation, and general family value showed correlation with family strains, family hardiness, and family adaptation. Theresfore the continuing future research on the relationship between family value and family adaption is necessary.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2002년도 Proceedings of the International Welding/Joining Conference-Korea
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• pp.714-719
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• 2002

In The Great Hanshin-Awaji Earthquake, the general yield brittle fractures were observed in beam-column connections of steel building frames. Among many influencing factors which affect the general yield brittle fracture, it can be considered that fracture toughness has substantial effects. Some studies are making clear the required toughness for the base metal and the weld metal, but general values are not proposed. Moreover, it seems that it is also important to pay attention to the toughness decrease in the weld heat affected zone (weld HAZ), because the toughness decrease occurs in the HAZs of mild steel. In this paper, the relationship between toughness of simulated HAZs of "the rolled steels for building structures (SN)" and the weld heat-input limit of the SN steel are investigated, in an attempt to provide the required toughness for HAZs. The relationships between the increase of the hardness value and toughness, and changes of microstructure after weld heat-input are also discussed. The main results are summarized as follows. 1) The SN400B can keep its toughness at higher heat-inputs compare to the SN490Bs. 2) The steel grade, which becomes harder than other steel grades at the same heat-input, has smaller absorbed energy and smaller limit of heat-input. 3) The weld heat-input limit of the SN400B and the SN490B are proposed separately for some required toughness values.

• 대한족부족관절학회지
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• 제1권1호
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• pp.11-14
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• 1997

Hallux valgus is a complex deformity which contains static subluxation of the first metatarsophalangeal joint with lateral deviation of the great toe and medial deviation of the first metatarsal bone. Among the several parameters, radiographic indices are the important ones in the choice of the treatment method. Even though, the normal values of the western peoples are already estabilished, there was no standard values for Korean who has different genetics, and cultural background, till now. So, we tried to estimate the noraml values of the HVA (hallux valgus angle ), IMA ( Intermetatarsal angle) and DMAA (Distal Metatarsal Articular surface Angle) in a normal adult. Fifty normal adult (each 25 male and female) were chosen and took 100 cases of foot radiograph and radiologic indices of the hallux valgus were measured. Average age at the investigation was 34.5 years old. The average HVA is $13.3^{\circ}$, IMA is $8.5^{\circ}$ and DMAA is $34.6^{\circ}$.

• 한국컴퓨터정보학회논문지
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• 제24권6호
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• pp.135-140
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• 2019

The purpose of this study was to find the ethical values of dental hygiene students, to establish the right ethical values of the students, and to provide a fundamental material for the ethical education direction and curriculum of the students. In order to examine the general characteristics and ethical job behavior level among dental hygiene students, a research was conducted from 1st April 2017 to $30^{th}$ June 2017 through selecting freshman, sophomore, junior and senior students currently enrolled in the department of dental hygiene at 5 different colleges as the subjects. Statistical analysis was performed using IBM SPSS 22. The frequency analysis was used to examine their general characteristics. The independent t-test was used to examine their ethical job behavior according to their religion, hospital practice experience and code of ethics as a dental hygienist, and the one-way ANOVA was used to examine their ethical job behavior according to grade-specific characteristics. Lastly, the Scheffe's post hoc test was conducted. The significance level was 0.05. Given the results, ethical job behavior was significantly different between the group of students with religion, the group of students with hospital practice experience, different school year students, and the group of students aware of code of ethics as a dental hygienist.

• Asian Pacific Journal of Cancer Prevention
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• 제16권2호
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• pp.753-756
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• 2015

Background: Red cell distribution width (RDW) is one of the standard parameters with blood cell counts. Much previous research has indicated that it increases in cases of systemic inflammation or cardiametabolic incident. However, information on the relation of RDW with solid tumors causing systemic inflammation is limited. In the present research, we examined the relation of RDW with malignant and benign lesions of the colon. Materials and Methods: 115 patients with colon polyps (group 1), and 30 with colon cancer (group 2) who were diagnosed histopathologically in our clinic between January 2010-January 2013 were scanned retrospectively. Patients with anemia, hematologic diseases and active inflammation were excluded. RDW, mean corpuscular volume (MCV), hemoglobin (Hgb) and platelet (Plt) measurements were recorded and their relations with the malignant and benign lesions of the colon were examined. Results: Both groups were similar in age and gender distribution. RDW values of patients with colon cancer were significantly higher than the patients with colon polyp (p=0,01). No significant differences were detected between the two groups in terms of MCV and Plt values (p>0,05). Conclusions: RDW can be used as an early warning biomarker for solid colon tumors. Further prospective research is required on the relations of cheap and easily measured RDW parameters with colon malignancies.

• 한국습지학회지
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• 제11권1호
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• pp.83-90
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• 2009

우리나라의 습지보전에 관한 국민인식도 분석을 위해 2007년 9월 5일부터 약 1개월간 일반대중 및 습지 이해당사자 300명을 대상으로 설문조사를 실시하였다. 우리나라의 현재 습지보전 수준과 관련하여, 전체 응답자 300명 중 9.7%만이 '우리나라의 습지보전이 잘되고 있다'고 응답하여, 현행 습지보전과 관련된 정책 및 제도의 개선이 필요한 것으로 나타났다. 습지 이해당사자의 경우 습지의 공익적 가치에 대해 비교적 잘 인식하고 있으나, 일반대중들의 경우에는 습지의 공익적 가치를 잘 모르는 응답이 58.8%에 달하여, 보다 체계적인 일반대중 대상 습지교육 및 홍보가 필요한 것으로 나타났다. 습지보전의 정도가 개인과 가정에 미치는 영향과 관련한 설문에서, 전체 응답자 중 습지의 보전이 '중요하다'는 응답은 63.5%이었고 15%만이 '중요하지 않다'고 응답하였다. 한편 습지보전의 정도가 국가의 자연환경과 발전에 미치는 영향과 관련하여, 전체 응답자 중 '중요하다'라는 응답은 83.2%, '중요하지 않다'라는 응답은 3%에 그쳤다. 이는 습지의 보전이 개인과 가정 그리고 국가에 미치는 영향이 있고, 특히 국가에 중요한 영향을 끼치는 것으로 인식하는 것을 나타낸다. 또한 습지가 인간에게 직접적인 경제적 이익을 주지 않더라도 마땅히 보호되어야 한다는 응답이 전체 85.1%를 차지하여, 직접적인 경제적 이익이 없더라도 습지가 보호되어야 한다는 인식을 보였다. 본조사의 결과를 종합하여 볼 때에 우리나라 국민은 습지는 공공의 자산으로 후대에도 물려주어야 할 중요한 자연자산으로 인식하고 있으며, 습지의 가치를 고려하지 않은 무분별한 개발은 바람직하지 않은 것으로 인식하는 것으로 나타났다.

• 대한통합의학회지
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• 제4권2호
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• pp.37-51
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• 2016

Purpose: This research was to discover the value of ethics of physical therapy students and physical therapists. This study was launched to provide the bedrock for this field of study by means of getting the data about the current address of value of ethics. Methods: This investigation was conducted with 900 students from seven different universities in Republic of Korea (3, 4-year colleges) and with 350 clinical physical therapists who are currently working in the national capital region. The tool for the research was to revamp and supplement ethics codes in Korean Physical Therapy Association and a set of questions of Jeom Hui Youk (1992), Young Ran Choi (2001), etcetera and each question was provided with different points by the set of measurement we created. The collected data were analyzed by using SPSS 21.0 statistical program. Results: Comparing the average ethics score both on the general information of both groups and the value of ethics of both groups, we were sure to say that the average ethics score of ethics value was significantly more meaningful than that of general information. Conclusion: Physical therapy students establish a correct ethics values and physical therapists should have training in ethic values education are combined accordingly to correct the wrong ethically values and clearly established.