• Korean Journal of Human Ecology
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• v.6 no.1
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• pp.89-96
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• 1997

The purpose of this study was to determine the clothing value, awareness of and concern about clothing's country of origin in Korea and England university women. University women in Korea and England were surveyed to determine the importance attributed to 32 descriptors defining 8 clothing values. Awareness of, and concern about, clothing's country of origin were determined mean-scores, t-test and $x^2$-analyses were done. A different rank order of importance for clothing values exists for both groups. The Korea sample rated aesthetic, economic, theorical, political, exploratory and sensory significantly higher and social, religious significantly lower than England sample. England sample appeared to be more aware, concerned about clothing's country of origin than Korea sample. More Korea women were able to recall country of origin. Over half Korea sample but less than 22% England sample recalled purchasing primarily domestic apparel.

• Journal of Korean Society on Water Environment
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• v.26 no.1
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• pp.28-34
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• 2010

This study was conducted to assess the validity of fecal coliforms to fecal streptococci ratio (FC/FS) for distinguishing the human from animal origin of fecal pollution in surface water. FC/FS ratio determined in effluent from municipal wastewater and human feces treatment plant (WWTP) and in downstream close to discharge of human feces was above 4 which indicates human origin. However FC/FS ratios determined seasonally in other water zones of the Nakdong River, even in the same sampling site, varied differently (above 4 or less than 0.7) due to different survival time of FC and FS and other environmental factors such as rainfall in watershed. Compared to other season, FC/FS ratios in winter were much lower regardless of the origin. It is concluded that the FC/FS ratio determined in surface water is not always valid for determining the origin of fecal pollution.

• Korean Journal of Child Studies
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• v.25 no.3
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• pp.87-99
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• 2004

The subjects of this investigation were 393 fourth and fifth graders from two elementary schools in Seoul and parents of these children. The level of fathers' emotional separation from the family of origin was higher than that of mothers'. Mothers were more warm acceptant and rejective restrictive than fathers; fathers were more permissive neglectful than mothers. Both fathers and mothers were more rejective restrictive of girls than of boys. Mothers with high scores in emotional separation from family of origin were more warm acceptant to their children and less rejective restrictive than those with low scores. Fathers with high scores in emotional cut off from the family of origin were more permissive neglectful behavior of their children than fathers with low scores.

• Korean Journal of Organic Agriculture
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• v.32 no.1
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• pp.55-74
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• 2024

This study examines how consumer attitudes toward food origin and health concerns influence beef purchasing behavior. Using data from the Korea Rural Economic Institute's food consumption behavior survey, we analyzed the frequency of purchasing domestic and imported beef. Results indicate that when not distinguishing between domestic and imported beef, perceptions of lower origin quality and higher health concerns are associated with an increase in purchasing frequency. However, such influences are statistically insignificant for imported beef. Further analysis reveals that for consumers exclusively purchasing domestic beef, these factors do not significantly impact purchasing frequency, while for consumers simultaneously purchasing both domestic and imported beef, these factors do significantly impact purchasing frequency.

• The Bulletin of The Korean Astronomical Society
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• v.45 no.1
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• pp.34.3-34.3
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• 2020

Faint z ~ 5 quasars with M1450 ~ -23 mag are known to be the potentially important contributors to the ultraviolet ionizing background in the post-reionization era. However, their number density has not been well determined, making it difficult to assess their role in the early ionization of the intergalactic medium (IGM). In this work, we present the updated results of our z ~ 5 quasar survey using the Infrared Medium-deep Survey (IMS), a near-infrared imaging survey covering an area of 85 square degrees. From our spectroscopic observations with the Gemini Multi-Object Spectrograph (GMOS) on the Gemini-South 8 m Telescope, we discovered eight new quasars at z ~ 5 with -26.1 ≤ M1450 ≤ -23.3. Combining our IMS faint quasars with the brighter Sloan Digital Sky Survey (SDSS) quasars, we derive, for the first time, the z ~ 5 quasar luminosity function (QLF) without any fixed parameters down to the magnitude limit of M1450 = -23 mag. We find that the faint-end slope of the QLF is very flat (-1.2) with a characteristic luminosity of -25.7 mag. The number density of z ~ 5 quasars from the QLF gives lower ionizing emissivity and ionizing photon density than those in previous works. These results imply that quasars are responsible for only 10-20% of the photons required to completely ionize the IGM at z ~ 5, disfavoring the idea that quasars alone could have ionized the IGM at z ~ 5.

• Journal of Chest Surgery
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• v.19 no.3
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• pp.453-456
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• 1986

Primary intrathoracic liposarcomas are extremely rare tumors. 50 cases of mediastinal liposarcoma till 1977 have been recorded in the world literature, and 2 cases of pleural origin were reported in 1967. We report two cases, one is mediastinal origin and the other is pleural origin.

• Journal of Korean Society of Transportation
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• v.22 no.6
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• pp.57-66
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• 2004

When we estimate an origin-destination matrix from traffic counts. origin-destination matrix estimation from traffic counts according to the selected optimal traffic counting links is method for improving the results of origin-destinaation matrix estimation and for increasing economic efficiency. This paper proposed model of selecting traffic counting links using integer program technique, and selected a traffic counting links using this model, and estimated and origin-destingtion matrix from traffic counts according to the selected optimal traffic counting links. Also, we compared a result of estimating origin-destination matrix from the selected optimal traffic counting links using this model to a result of estimating origin-destination matrix from the randomly selected traffic counting links. The error analysis result was more improved a result of origin-destination matrix estimation using this model than a result of randomly selected links.

• Journal of Korea Trade
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• v.23 no.6
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• pp.1-13
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• 2019

Purpose - This study deals with a strategic plan for meeting the value added criteria effectively, which is one of the methods of determining origin used in preferential trade such as FTA. Automobile products, one of the major Korean export items, were selected to give a practical use against the FTA requirements. Design/methodology - This study is based on the value-added criteria of the Korea-US and Korea-EU FTAs that apply various value-added criteria. The Korea-US FTA adopts the RVC method based on the integration, deduction and net cost methods, while the MC method is employed in the Korea-EU FTA. The methodology used in this work is an extended literature review, analysis of the value-added criteria applied to automobile products under Korea-US and Korea-EU FTA with some secondary statistics. Findings - Based on in - depth analysis of the value - added criteria requirements for automobile products stipulated in the Korea - US FTA and the Korea - EU FTA, two strategic considerations are suggested. First is 'appropriate value-added strategy' and the second is 'strategy of changing production and trade structure'. The second strategy is a bit used in Korea but this is not considered best if the first strategy is ignored or forgotten. The second one is meaningful when this becomes inevitable. Research limitations/implications - This study is primarily designed to assist Korean auto mobile industry players exporting to EU and USA but this may help to auto part or material producers in FTA counter party territories being EU or USA as the preferential tariffs are applied on a inter region basis. A further research other than auto mobiles using other major FTAs might be followed later. Originality/value - There has been so far little research on strategic factors to meet the value-added origin requirements. This study, therefore, is expected to contribute facilitating the decision of FTA origin and to improve the utilization of FTA by allowing exporting companies using value added criterion to more smoothly meet origin requirements. This will also enable the tax authorities to utilize the value-added criterion to validate effectively the origin of imports where preferential tariffs are applied.

• The Bulletin of The Korean Astronomical Society
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• v.44 no.2
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• pp.76.1-76.1
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• 2019

After the first identification of electromagnetic counterpart of gravitational wave source (GW170817), era of multi-messenger astronomy has begun. For specifying coordinate, magnitude, and host galaxy information, optical follow-up observation of GW source becomes important. The O3 run of LIGO / VIRGO started after April 2019. We present searching strategy of GW optical counterpart using the KMTNet. By performing tiling observation of high probability area in GW localization map, we expect to observe early light-curve of GW optical counterpart. We will also present observation result for three gravitational wave events of binary black hole mergers. After identification of optical counterpart, we will study collision mechanism, progenitor, and characteristics of host galaxy using observation data of GW source.

• The Korean Journal of Physiology and Pharmacology
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• v.5 no.4
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• pp.353-357
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• 2001

The pathogenesis of the nasal polyp is multifactorial and choanal polyps can be defined by its origin of genesis: antrochoanal (maxillochoanal), ethmochoanal and sphenochoanal polyp. Transforming growth $factor-{\beta}\;(TGF-{\beta})$ has various biologic activities, including the regulation of epithelial proliferation, the promotion of extracellular matrix formation and the induction of angiogenesis, hence closely related to pathogenesis of nasal polyp. Twenty cases of choanal polyps (13 antrochoanal, 4 ethmochoanal and 3 sphenochoanal polyps) were included in this study. Each polyp was subdivided into its origin, pedicle and choanal part. Hematoxylin and eosin stain for routine histopathology and immunohistochemistry were employed to detect expression of $TGF-{\beta}1.$ According to polyp type, edematous type is common at origin part and fibrous type at choanal part, and showed no difference at pedicle part in frequency. In ethmochoanal and sphenochoanal polyps, glandulocystic and edematous type is more common than fibrous type. $TGF-{\beta}1$ was expressed in epithelial cells, endothelial cells, eosinophils and lymphocytes. There was no different expression of $TGF-{\beta}1$ in each kind of choanal polyps and separate parts in each polyp. But histologic finding of choanal polyp is different between origin, pedicle and choanal part. Also infiltration of inflammatory cells including eosinophils has no difference between origin site. The expression of $TGF-{\beta}1$ was observed at all the choanal polyps and no difference between origin site and each portions was noted.