• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.05a
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• pp.150-150
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• 2023

본 논문은 우리나라의 권역별 어선 안전관리에 대한 동향을 분석하고, 해양사고통계를 기반으로 어선 안전관리 대책을 고찰해 보고 시사점을 도출하고자 한다.

• The Korean Journal of Applied Statistics
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• v.34 no.5
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• pp.761-772
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• 2021

Simulation results for the comparison of estimators of interest are usually reported in tables or plots. However, if the simulations are conducted under various conditions for many estimators, the comparison can be difficult to be made with tables or plots. Furthermore, for algorithms that take a long time to run, the number of iterations of the simulation is costly to to be increased. The analysis of simulation results using regression models allows us to compare the estimators more systematically and effectively. Since variances in performance measures may vary depending on the simulation conditions and estimators, the heteroscedasticity of the error term should be allowed in the regression model. And multiple comparisons should be made because multiple estimators should be compared simultaneously. We introduce background theories of heteroscedasticity and multiple comparisons in the context of analyzing simulation results. We also present a concrete example.

• Pediatric Infection and Vaccine
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• v.15 no.2
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• pp.115-120
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• 2008

Purpose : This post-marketing surveillance (PMS) study was conducted in Korea to assess the safety and reactogenicity of hepatitis A vaccine (GlaxoSmithKlineBiologicals'$Havrix^{TM}$) administered to the Korean population. Methods : A total of 1,188 healthy subjects with 1,122 subjects <6 years of age were enrolled to receive one dose of the hepatitis A vaccine from April 2005 to January 2006. Diary cards were provided to the subjects or subjects' parents for reporting solicited and unsolicited symptoms during the 4-day and 31-day post-vaccination follow-up period. Results : The number of subjects who returned diary cards was 568, whereas, 620 subjects did not return diary cards. Among the subjects who returned diary cards, 9.9% and 14.3% reported local and general solicited/unsolicited symptoms. Among the subjects who did not return diary cards, 1.6% and 8.4% reported local and general solicited/unsolicited symptoms. At least one unsolicited symptom was reported by 13.2% of the subjects. Conclusion : Results indicate that the vaccine was well-tolerated and had an acceptable safety profile. The use of diary cards in such a survey provided a prompt and reliable option for recording symptoms.

• Korean Journal of Remote Sensing
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• v.15 no.2
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• pp.91-105
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• 1999

Spatial data integration using multiple geo-based data sets has been regarded as one of the primary GIS application issues. As for this issue, several integration schemes have been developed as the perspectives of mathematical geology or geo-mathematics. However, research-based approaches for statistical/quantitative assessments between integrated layer and input layers are not fully considered yet. Related to this niche point, in this study, spatial data integration using multiple geoscientific data sets by known integration algorithms was primarily performed. For spatial integration by using raster-based GIS functionality, geological, geochemical, geophysical data sets, DEM-driven data sets and remotely sensed imagery data sets from the Ogdong area were utilized for geological thematic mapping related by mineral potential mapping. In addition, statistical/quantitative information extraction with respective to relationships among used data sets and/or between each data set and integrated layer was carried out, with the scope of multiple data fusion and schematic statistical assessment methodology. As for the spatial integration scheme, certainty factor (CF) estimation and principal component analysis (PCA) were applied. However, this study was not aimed at direct comparison of both methodologies; whereas, for the statistical/quantitative assessment between integrated layer and input layers, some statistical methodologies based on contingency table were focused. Especially, for the bias reduction, jackknife technique was also applied in PCA-based spatial integration. Through the statistic analyses with respect to the integration information in this case study, new information for relationships of integrated layer and input layers was extracted. In addition, influence effects of input data sets with respect to integrated layer were assessed. This kind of approach provides a decision-making information in the viewpoint of GIS and is also exploratory data analysis in conjunction with GIS and geoscientific application, especially handing spatial integration or data fusion with complex variable data sets.

• The Journal of Internal Korean Medicine
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• v.36 no.3
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• pp.391-399
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• 2015

Objectives This case series reports the efficacy of Baenong Ickki San, a Bojungikki-tang -modified formula, in treating chronic prostatitis/chronic pelvic pain syndrome. Methods Patients diagnosed with chronic prostatitis/chronic pelvic pain syndrome (n=11) were treated with Baenong Ickki San. Changes in their condition were measured using the National Institutes of Health Chronic Prostatitis Symptoms Index (NIH-CPSI). Results NIH-CPSI scores showed a significant improvement in the disease. The mean NIH-CPSI total score significantly decreased from 37.6±5.8 at baseline to 7.5±3.9 at end point (p<0.001), i.e., a 30.2±7.3 mean decrease was noted. Conclusions Baenong Ickki San may be a potential new medicine for chronic prostatitis/chronic pelvic pain syndrome.

• KDI Journal of Economic Policy
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• v.14 no.4
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• pp.51-62
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• 1992

The purpose of this paper is to estimate the ratio of under-reported business income and related tax to that which is actually reported. The business income and tax are vulnerable to being under-reported. Information about the business income and thus income tax is private information. Without information costs, the tax agency cannot collect all the information about the business income and income tax. In Korea there are more than 600,000 proprietors. Therefore, the costs to investigate the accuracy of the taxpayes' reports are substantial. The tax agency sets a level over which proprietors should report income ratio to total sales, which induces the under-report. To estimate the ratio of under-reported tax, the expenditure method is employed. By this method, the under-reported income can be easily presumed based on expenditures since expenditures are closely related to income. First, the consumption function is estimated by using cross-section data of 1986-89. Generally, the estimation results show the expected sign of the coefficients of the explanatory variables such as income, wealth, and family size. Second, the extent of under-reported business income and related tax is estimated by using the estimation results. The estimated ratios of under-reported tax and income to the actual tax and income fall in the range of 13~39% and 8~25% respectively. This estimation confirms the increasing tendency of the tax detection ratio in previous studies. However, it should be noted that this study is not based on data of the tax report but those of the urban household survey. Therefore, there still remains the possibility that the ratio of under-reported tax could be underestimated.

• Journal of Gastric Cancer
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• v.9 no.1
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• pp.14-17
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• 2009

The clinical significance of hepatic resection for gastric metastases is controversial, even though hepatic resection has been widely accepted as a modality for colorectal metastases. Very few patients with gastric hepatic metastases are good candidates for hepatic resection because of multiple bilateral metastases, extrahepatic disease, or advanced cancer progression, such as peritoneal dissemination or extensive lymph node metastases. Therefore, several authors have reported the clinical significance of hepatic resection for gastric metastases in a small number of patients. Considering the present results with previous reports. The number and distribution of tumors in hepatic metastases from gastric cancer was considered based on the present and previous reports. Several authors have reported significantly better survival in patients with metachronous metastasis than in those with synchronous disease. However, metachronous hepatic resection necessitates the dissection of adhesions between the pancreas, liver, and residual stomach to prepare for Pringle's maneuver. Patients with unilobar liver metastasis, and/or metastatic tumors <4 cm in diameter may be good candidates for hepatic resection. Synchronous metastasis is not a contraindication for hepatic resection. Most of the long-term survivors underwent anatomic hepatic resection with a sufficient resection margin. After hepatic resection, the most frequent site of recurrence was the remaining liver, which was associated with a high frequency of mortality within 2 years. A reasonable strategy for improvement in survival would be to prevent recurrence by means of adjuvant chemotherapy and careful follow-up studies.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.2
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• pp.979-988
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• 2014

Purpose: The purpose of this study was to examine the relationship between nurse's perception of organizational characteristics including safety climate and work environment and barrier to medication error reporting. Methods: We surveyed 334 nurses from 7 hospitals. An assessment survey was consisted of modified safety climate scale, practice environment scale and barrier to medication error reporting. The data were collected from September 2012. Descriptive statistics, Pearson correlation coefficient, canonical correlation were used. Results: Organizational characteristics were related to barrier to medication error reporting with three significant canonical variables. The first canonical correlation coefficient was .50(Wilks' ${\lambda}$=0.61, df=32, p<.001), that of the second was .35(Wilks' ${\lambda}$=0.81, df=21, p<.001) and that of the third was .22(Wilks' ${\lambda}$=0.93, df=12, p=.018). The first variate indicated higher perception of safety climate variables and work environment variables were related lower barrier to medication error reporting variables except fear for error reporting. The second variate showed higher perception of 'safety climate between healthcare provider' and higher 'nurse participation in hospital affairs' and 'staffing and resource adequacy' were related to lower 'fear' and 'administrative response' in barrier to medication error reporting variables. Conclusion: Strategies for barrier to medication error reporting and improvement of organizational characteristics including safety climate and work environment should be implemented.

• Korean Journal of Food Science and Technology
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• v.53 no.1
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• pp.1-11
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• 2021

In this review, recent foodborne outbreaks caused by viruses in the Republic of Korea (2010-2019) were analyzed. The human norovirus was found to be the major foodborne virus causing an average of 94.9% of the viral outbreaks. Reverse-transcription polymerase chain reaction (PCR) with electrophoresis has been widely used to detect viruses, but several rapid detection methods, including real-time PCR, multiplex PCR, and quantum dot assay, have also been suggested. For norovirus inactivation studies, surrogates such as murine norovirus and feline calicivirus have been widely used to identify the reduction rate owing to the limitations in laboratory cultivation. Conversely, direct cell infection studies have been conducted for other foodborne viruses such as adenovirus, astrovirus, rotavirus, and hepatitis A or E virus. Moreover, virucidal mechanisms using various physical and chemical treatments have been revealed. These recent studies suggest that rapid in situ detection and effective control are valuable for ensuring food safety against viral infections.

• Journal of Korean Academy of Nursing
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• v.31 no.4
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• pp.584-597
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• 2001

목적: 간호전문직 위상정립에 영향을 미치는 간호 이미지에 관해 대학생을 대상으로 그들이 지각하는 간호이미지와 바람직한 간호자질을 조사하여 전문직 간호사로서의 이미지 형성을 위한 기초자료로 제공하기 위함이다. 연구방법: 본 연구는 N.시에 있는 1개 대학교의 간호학생 92명과 일반학생 100명으로 총 192명을 대상으로 설문지를 이용한 서술연구이다. 연구결과: 대상자의 일반적 특성에 따른 간호 이미지정도를 살펴보면, 비간호학생군(A군)에서는 영화나 TV를 통해서 간호 이미지가 형성된 것보다는 그렇지 않은 경우가 통계적으로 유의하게 높은 것으로 나타났고(F=4.81, p=.03), 신문이나 잡지에서는 의사의 보조역할로 비춰진 것이 통계적으로 유의한 것으로 니타났다(F=3.41, p=.01). 반면에 간호학생군(B군)은10%유의수준에서 통계적으로 유의한 결과는 간호사와 간호조무사를 복장이나 행동을 보고 구분할 수 있는 것으로 나타났다(F=2.25, p=.06). 대상자의 일반적 특성에 따른 간호사 자질정도를 보면, 두 군 모두 통계적으로 유의한 차이를 보이지 않았다. 간호이미지와 간호사 자질간의 상관관계에서는 r=.720(p=.000)으로 높은 순 상관관계를 보임을 알 수 있었다. 간호 이미지에 영향을 미치는 가장 중요한 예측변인은 간호사 자질로 52% 설명할 수 있었으며, 여기에 영화나 TV를 통해 형성된 경우를 추가하면 54%, 간호학생인 경우를 추가하면 총 56%로 간호 이미지를 설명할 수 있는 것으로 나타났다. 결론: 연구결과를 토대로 다음과 같은 제언을 할 수 있겠다. 1. 간호 대학생들이 긍정적인 간호 이미지를 경험하도록 올바른 윤리와 간호전문성을 정립할 수 있는 교육 프로그램 개발이 필요하다. 2. 간호사 이미지 향상을 위한 대중매체의 활용전략에 대한 연구가 필요할 것으로 사료된다.