• The Korean Journal of Air & Space Law and Policy
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• v.25 no.2
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• pp.201-230
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• 2010

With starting the industry of automobiles, railroads and mining, the legal principle of "erlaubtes Risiko" that began as a means of maintaining the revitalized world for the cause of social utility has interpreted as a system of negligence theory in the precedent while it has gained academic recognition. Yet in aircraft operation, which is one area of high technology, CAT which can be the cause of some accidents or events or thunderstorm with turbulence is an abnormal meteorological phenomenon with frequent change that cannot be monitored perfectly just as some patient with unstable condition and that cannot be ascertained about not only the possibility of its happening but also the degree of how big the accident is. Yet the use of jet current which has the possibility of CAT can be an act of high social utility where we not only drastically cut down on time fuel also guarantee the arrival and departure on schedule when landing in airports that have thunderstorm which does not appear as fatal risk. Although we could take some measures where we can predict and avoid the potential risk, easing the regular duty of care is necessary by applying the legal principles of permitted risk concerning the incidents and accidents caused by operating in areas with the risk of turbulence or CAT with the low probability by the reason of social utility.

• Journal of the korean academy of Pediatric Dentistry
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• v.34 no.3
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• pp.526-531
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• 2007

Toxoplasmosis is a parasitic infection caused by the obligate parasite, Toxoplasma gondii, that is distributed throughout the world. Infection is produced by contact with animal like dog, cat, pig, cow or horse. It is also possible to produce clinical disease in the form of oropharyngeal infection through consumption of raw or incompletely cooked meat. Handling of contaminated cat litter has been found to be the major route of transmission. There are two clinical manifestations of toxoplasmosis: the congenital and the acquired form. The congenital form is characterized by hydrocephalus, chorioretinitis, convulsion, and intracerebral calcifications in the newborn. The acquired form is further subdivided into the disseminated and the lymphadenopathic types, the latter being the more common form of the disease in men. This is a case report of a Korean 8 year 2 months female congenital toxoplasmosis child. Clinical feature, patient's medical history, radiographic evaluation and dental problems are discussed in this report.

• Journal of Advanced Navigation Technology
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• v.19 no.1
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• pp.22-32
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• 2015

Ground based augmentation system (GBAS) is a next generation radio navigation aids to support precision approach of aircraft. Recently, airports installing GBAS and providing GBAS service are increasing all over the world. For the first time in Korea, SLS-4000 which is the GBAS ground equipment of Honeywell had been installed at Gimpo International Airport in 2013, and evaluated its functionality and performance of through the ground testing. This paper introduces a ground test and evaluation criteria on the CAT-I GBAS system, and describes testing methods for GBAS ground testing of Gimpo International Airport. In addition, detail testing methods and analysis results on major five of 12 ground test items are described.

• Clinical and Experimental Reproductive Medicine
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• v.46 no.3
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• pp.112-118
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• 2019

Objective: Oxidative stress contributes to male infertility, and antioxidants have been recommended for treating idiopathic oligoasthenoteratozoospermia (OAT). There is, however, a lack of agreement on the type, dosing, and use of individual antioxidants or combinations thereof. The purpose of this study was to compare the effects of two doses of coenzyme Q10 (CoQ10) on semen parameters and antioxidant status in men with idiopathic OAT. Methods: In this prospective study, patients with idiopathic OAT received 200 mg/day (n = 35) or 400 mg/day (n = 30) of CoQ10 orally for 3 months. All patients underwent semen analysis according to the fifth editions of the World Health Organization criteria. Total antioxidant capacity (TAC), catalase (CAT) activity, and superoxide dismutase (SOD) activity were measured both before and after treatment. Results: Treatment with CoQ10 (200 mg/day or 400 mg/day) resulted in a significant increase in sperm concentration from baseline ($8.22{\pm}6.88$ to $12.53{\pm}8.11million/mL$, p= 0.019; $7.58{\pm}5.41$ to $12.33{\pm}6.1million/mL$, p= 0.002, respectively), progressive motility ($16.54%{\pm}9.26%$ to $22.58%{\pm}10.15%$, p=0.011; $14.22%{\pm}12.85%$ to $26.1%{\pm}14.52%$, p= 0.001, respectively), and total motility ($25.68%{\pm}6.41%$ to $29.96%{\pm}8.09%$, p= 0.016; $23.46%{\pm}12.59%$ to $34.82%{\pm}14.17%$, p= 0.001, respectively). CoQ10 therapy also increased TAC (p= 0.009, p= 0.001, respectively), SOD activity (p= 0.004, p= 0.001, respectively), and CAT activity (p= 0.039, p= 0.024, respectively). Furthermore, antioxidant measures correlated significantly with seminal fluid parameters (r = 0.36-0.76). Conclusion: CoQ10 supplementation improved semen parameters and antioxidant status in men with idiopathic OAT, with a greater improvement shown in men who took 400 mg/day than in those who took 200 mg/day.

• Horticultural Science & Technology
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• v.31 no.6
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• pp.782-789
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• 2013

Carrot (Daucus carota L. var. sativa) is one of the most widely used crops in the world and is nutritionally important crop. However, seed-hair which is generated in epidermal cell of seeds causes the difficulty of the seedling process, because of the seed germination and absorption inhibitions. For these reasons, carrot seeds are commercialized after mechanical hair removal process. However, in this process, various damage and seed loss occur and breeding of hairless-seed carrot cultivar is needed to overcome these various weaknesses and additional seed production costs. In this study, cDNA libraries using 2 combinations, which were composed of short-hair seed CT-ATR 615 OP 666-13 & long-hair seed CT-ATR 615 OP 671-9, and short-hair seed CT-SMR 616 OP 659-1 & long-hair seed CT-SMR 616 OP 677-14, were constructed and EST sequences of each individuals were analyzed to reveal carrot seed-hair characteristics. Firstly, analyzed EST sequences were classified into FunCat functional categories. As a result, significant differences have been identified in metabolism category, protein folding and stabilization, protein binding, C-compound binding category from both of two combinations. Secondly, several candidate EST sequences related to seed trichome differentiation and cellulose biosynthetic process were selected based on GO data of EST sequences. These differences based on FunCat categories and candidate EST obtained by GO data analysis are thought to be involved in the formation of carrot seed hair. Finally, 741 SSR sites and 33 SNP sites were identified from analyzed EST sequences of two combinations. Then we designed SNP and SSR primer sets to develop molecular markers. These molecular markers will be used for classification of carrot cultivars and study seed-hair characteristic.

• Parasites, Hosts and Diseases
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• v.37 no.4
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• pp.271-275
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• 1999

Pneumocystis carinii is the most important opportunistic pathogen of humans in the world. Pneumocystis carinii is experimentally detected in the lungs of rats, mice, rabbits, and monkeys, however, the organisms from different mammals are identical in microscopic morphology. The present study tried to find out more mammalian hosts of P. carinii and also to differentiate the organisms from different mammals by karyotyping. Rats, mice, hamsters, rabbits, cats, and dogs were successfully infected by P. carinii, but guinea pigs and pigs were not. Karyotype of P. carinii from rabbits showed similar size range of chromosomes with that of the prototype, but in different pattern. The patterns from cats and dogs were also different from that of rats. The present study confirms that cats and dogs are infected by P. carinii and at least total three karyotype strains of P. carinii are proven in Korea.

• Korean Journal of Veterinary Research
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• v.53 no.3
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• pp.155-158
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• 2013

Paedomorphosis is the retention of juvenile morphology at maturity and is important in generating evolutionary change in domestic species and species in the wild. This preliminary study compared morphological characteristics of seven domestic cat pure breeds and felid species from around the world. An original procedure based on elliptical Fourier (EF) methods was applied to head lateral views of specimens and were assessed in order to analyse head profile. For comparative purposes three domestic kittens of different ages and three species of genus Lynx were also used. EF descriptors, allowed for the quantification of the head profile. Using the Fourier transform, reconstruction of the mean head profile revealed that there was a general shape difference between wild cats, domestic cats and kittens. Results suggested that variability in head profile differentiate quite well between adult cats and kittens, but domestic and wild cats appeared grouped into a similar cluster. The similarity between breeds can thus be attributed more to the general head profile than to flatness, i.e. to the general conformation rather than facial profile. Therefore, no effect of paedomorphism on the studied breeds can be undertaken. The present approach opens interesting ethnological perspectives for the aloidic characterisation for domestic breeds.

• Journal of Information Management
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• v.33 no.3
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• pp.69-85
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• 2002

The purpose of this study is to describe the current practises and procedure of building the authority file for corporate names and conference names for Korea Institute of Science and Technology Information Authority Database, and the characteristics of OCLC WorldCat and Library of Congress Authorities Database as the sources for importing authority records. Workflow of creating authorities records is explained and the structures and search strategies for OCLC and LC databases are compared and analyzed. The actual procedures of importing records from outside sources and revising their contents to represent KISTI's needs are described step by step, and records are illustrated.

• Journal of Korean Society of Archives and Records Management
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• v.14 no.2
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• pp.61-82
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• 2014

Archival authority records support users in accessing and understanding archival information. The creator of the archives, on the other hand, is also the creator of other informative materials, including published products, and the users want to access information in a seamless manner. Moreover, the authority record has common attributes with the authority records for bibliographic control as well as its distinctive characteristics. Therefore, this research aims to link legacy authority records for constructing and expanding archival authority records and provide the expanded archival records to the Web environment, including Wikipedia, for data sharing. Finally, some issues and suggestions for further research based on the findings that resulted from experimental linking and sharing are discussed.

• International Journal of Knowledge Content Development & Technology
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• v.10 no.3
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• pp.7-20
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• 2020

This study examined the awareness and use of cloud computing services by librarians in selected universities in Edo State. A descriptive survey research design was employed and the instrument used was questionnaire. The population of the study was 132 professional and Para-professional librarians. The total enumeration technique was used to select the entire population because the size was manageable. Simple percentage, frequency count, and mean were used to analyze the data collected. From the analysis of data gathered, it was found that the librarians are aware of the use of OCLC, world cat, and Google docs to a very high extent. It was found that the librarians used cloud computing services and technologies for collection development functions and cataloging. Based on the findings it was recommended that management of the libraries should support librarians by providing adequate funding to the library in order to support the acquisition and maintenance of infrastructure for cloud computing.