• Journal of the Economic Geographical Society of Korea
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• 제17권4호
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• pp.632-645
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• 2014

This paper criticized the recent Korean 'creative economy policies' focused on regional developmental implications. Even though the policies targeted to promote ICT new startups and build virtuous circle of ICT industrial ecosystem in Korea as a whole, the outside regions of the Seoul-Busan industrial axis where the bases of ICT industries are very weak would suffer from systematic exclusion in ICT investments and deepening regional disparities. Second, ICT-centered policies would selectively affect or operate commensurate with the size of regions in this low-growth, after-financial crisis age. Third, the possibilities of regional insularity and lock-in in these low levels of 'related variety' regions would worsen the industrial competitiveness. Lastly, the policies should be reoriented to fortify region-based creative economic ecosystem based upon triple helix learning region.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• 제16권2호
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• pp.1-45
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• 2003

We get the conclusion this following through bibliographic consideration about the cause of disease, disease mechanisms and remedy, prescription of tuberculosis of the cervical lymphic node. 1. The tuberculosis of the cervical Iymphic node is named the linear lump of scrofula(마도라력), the scrofula around neck(반사력), the wide-spread scrofula(류주력), the papule like lotus seed(련자력), the scrofula(라력), the subcutaneous nodes(結核), the scrofula due to disorder of Gi(기력) and the scrofula due to accumulation of phlegm(담력) according to the criterion of regions of disease, causes, rounding parts and shapes. 2. The cause of the tuberculosis of the cervical lymphic node are the stagnation of liver Gi(肝氣鬱結), the accumulation of phlegm and the stagnation of Gi(痰凝氣滯), the deficiency of vital essence of the liver and kidney(肝腎陰虛), the wind-heat of liver, gallbladder and triple warmer(肝膽三焦風熱), the dry-fire(燥火), the dryness of blood(血燥), the unwholesome diet(飮食不潔), the abundance of diet(食味之厚), the stagnation of Gi(鬱氣之積), the exhaustion syndrome(虛勞), the excessive thought(思慮過多), the toxin of wind-heat(風熱毒) and the germ of subcutaneous nodes(結核菌). 3. Symptoms of the tuberculosis of the cervical lymphic node are swelling slowly in comparison in the early days of occurrence, and are not pain, not itch, not heat, not other special symptoms. But in some cases, tuberculosis of the cervical lymphic node are quickly swelling in the early days of occurrence, and the fever and pain appear, The pyosis is accompanied with the fever and the pain at first generally, and then removing the pus from abscess is dissolved the fever and the pain in the majority of cases and representative of the general exhaustion syndrome. 4, The remedy of tuberculosis of the cervical Iymphic node is the early days, clearing the liver and relieves constraint(疏肝解鬱), phlegm and dissolving accumulation(化痰散結) the middle days, pus draining and toxin expelIing(托裏透膿) the latter days, replenish the kidney and strengthen the spleen(滋腎健脾). 5. The medication to treat the tuberculosis of the cervical lymphic node are the 益氣養榮湯(lkgiyangyoungtang)(14th), the 夏枯草散(Hagochosan)(10th) and et cetra in regular sequence. 6. The herb to treat the tuberculosis of the cervical Iymphic node are the 連翹(FRUCTUS FORSYTHlAE)(59th), the 甘草(RADIX GLYCYRRHIZAE)(51th), the 當歸(RADIX ANGELICAE GlGANTIS)(47th), the 黃芩(RADlXSCUTELLARIAE)(40th), the 夏枯草(SPICA PRUNELLAE)(23th) in regular sequence.

• Management & Information Systems Review
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• 제32권4호
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• pp.53-79
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• 2013

Social enterprises can be identified roughly as social purpose-oriented business ventures. They often fill the gaps left by governmental and commercial ventures in providing for certain vulnerable sectors of society. Though social enterprises often adopt market mechanisms in their organizational structures, their emphasis on particular social outcomes means that they intentionally pursue double/triple-bottom lines, thus distinguishing them from many traditional for-profit businesses. Among the Korean laborers, women have been hardest hit by the global economic crisis. As the movements have substantially been taken to strengthen women's economic activities in the recent years, many policies are formulated with these trends, connecting women's employment with social enterprises. This study focused on analyzing social enterprises to be friendly and to provide decent work to women. Data were collected from 491 social enterprises and 830 workers. The main results are as follows. First, the women's employment in social enterprises has accounted for a relatively high rate and the women's wage also is similar to men's one. Second, as for work conditions and types, most women have preferred irregular and non-managerial work. Thus, social enterprises have showed a positive response for the women's job opportunities, while social enterprises have had a negative one for enhancing the women's status at the labor market. In conclusion, social enterprises should institutionalize how to provide more stable working condition to women and to improve their's capacity.

• Journal of Chest Surgery
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• 제32권1호
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• pp.22-26
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• 1999

Background: Treatment of adult patent ductus arteriosus(PDA) has many difficulty such as pulmonary hypertension, arterial wall calcification, aneurysmal chage of ductus. We tried to evaluate the effect of surgical interruption of PDA on postopeative change of heart size. Material and Method : From 1987 to 1997 we experienced 30 cases of the ligation of patent ductus arteriosus in adult at the department of cardiovacular surgery in Masan Samsung General Hospital. Result: There were 9 males and 21 females and their ages ranged from 16 to 44 years, with a mean age of 26.1 years. 15 patients had pulmonary hypertension and 9 patients complained of dyspnea with a degree of functional NYHA class III. Operation method was double or triple ligation using Teflon felt. Postoperative complications were wound dehiscence in 3 patients and transient hoarseness in 1 patient. The mean preoperative cardiothoracic ratio was 54.7%, and mean postoperative cardiothoracic ratio was 51.9%. The change of cardiothoracic ratio was more typical in the cases who had congestive heart failure. Their mean preoperative cardiothoracic ratio was 64.8% and the mean postoperative cardiothoracic ratio was 58.5% there was no postoperative deaths. Conclusion: We canclude that the improvement in cardiothoracic ratio may result from surgical intervention of PDA.

• Journal of Plant Biology
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• 제39권1호
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• pp.31-40
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• 1996

The physiological and biochemical characterizations of the ethylene-related mutants in Arabidopsis thaliana - ethylene overproducing mutant (eto1-l) and ethylene insensitive mutants (etrl-3, ein2-l) - were detailed in this studies. Two or three week.old mature rosette leaves (before bolting) were used as the plant materials. Ethylene productions of eto1-l, etrl-3, and ein2-l mutants were about 200%, 400%, and 450% compared to that of wild type, respectively. ACC synthase and ACC oxidase activities of eto1-l mutant were similar to those of wild type. ACC content and ACC N-malonyltransferase activity, however, were 4.5 times and 3 times higher than those of wild type, respectively. SAM synthetase activity increased by 50% in eto1-l mutant plant. These results indicated that the alteration in the eto1-l mutant occured before the step of the conversion of SAM to ACe. In etrl-3 and ein2-l mutants, ACC synthase activities increased, but ACC oxidase activities decreased. ACC content and ACC N-malonyltransfcrase activity were 2 times higher than those of wild type. SAM synthetase activity in etrl-3 is similar to those of wild type, while it increased by 73% in ein2-l. These results showed that the block in ethylene action affected the autoregulation of ethylene biosynthesis, so that ACC synthase activity was not autoinhibited and ACC oxidase activity was not auto stimulated by ethylene. When the leaf tissues were used for in vitro kinase assay, a cytosolic protein (approximately 36 kDa) was phosphorylated only in eto1-l and ein2-l mutants.utants.

• Bulletin of the Korean Chemical Society
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• 제34권4호
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• pp.1081-1088
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• 2013

Two new metal-free organic dyes bridged by anthracene-mediated ${\pi}$-conjugated moieties were successfully synthesized for use in a dye-sensitized solar cell (DSSC). A N,N-diphenylthiophen-2-amine unit in these dyes acts as an electron donor, while a (E)-2-cyano-3-(thiophen-2-yl)acrylic acid group acts as an electron acceptor and an anchoring group to the $TiO_2$ electrode. The photovoltaic properties of (E)-2-cyano-3-(5-((10-(5-(diphenylamino)thiophen-2-yl)anthracen-9-yl)ethynyl)thiophen-2-yl)acrylic acid (DPATAT) and (E)-2-cyano-3-(5'-((10-(5-(diphenylamino)thiophen-2-yl)anthracen-9-yl)ethynyl)-2,2'-bithiophen-5-yl)acrylic acid (DPATABT) were investigated to identify the effect of conjugation length between electron donor and acceptor on the DSSC performance. By introducing an anthracene moiety into the dye structure, together with a triple bond and thiophene moieties for fine-tuning of molecular configurations and for broadening the absorption spectra, the short-circuit photocurrent densities ($J_{sc}$), and open-circuit photovoltages ($V_{oc}$) of DSSCs were improved. The improvement of $J_{sc}$ in DSSC made of DPATABT might be attributed to much broader absorption spectrum and higher molecular extinction coefficient (${\varepsilon}$) in the visible wavelength range. The DPATABT-based DSSC showed the highest power conversion efficiency (PCE) of 3.34% (${\eta}_{max}$ = 3.70%) under AM 1.5 illumination ($100mWcm^{-2}$) in a photoactive area of $0.41cm^2$, with the $J_{sc}$ of $7.89mAcm^{-2}$, the $V_{oc}$ of 0.59 V, and the fill factor (FF) of 72%. In brief, the solar cell performance with DPATABT was found to be better than that of DPATAT-based DSSC.

• Korean Journal of Materials Research
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• 제9권10호
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• pp.1025-1031
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• 1999

Alloys of TiAl with six different compositions. i. e., Ti-(42, 44)Al-2Nb-4V. Ti-(42, 44)Al-4Nb-2V and Ti -(42, 44)Al-4Nb-2Cr, were manufactured by arc-melting. and their oxidation behavior was studied. Both isothermal and cyclic oxidation tests were performed at 700, 800 and $900^{\circ}C$ in air for 50hr. The oxidation resistance increased in the order of Ti-(42, 44)Al-2Nb-4V, Ti-(42, 44)Al-4Nb-ZV and Ti-(42, 44)Al-4Nb-2Cr. It was found that V was a deleterious element, while Cr was a beneficial element in terms of oxidation resistance. During oxidation, a simultaneous interdiffusion was observed. All the constituent elements in the base alloys diffused outward. whereas oxygen from the atmosphere diffused inward, to form triple oxide layers composed of an outermost $\textrm{TiO}_2$ layer. upper ($\textrm{TiO}_2+\textrm{Al}_2\textrm{O}_3$) mixed layer, and lower $\textrm{TiO}_2$-rich layer.

• Food Science of Animal Resources
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• 제36권5호
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• pp.665-670
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• 2016

The objectives of this study were conducted to characterize pepsin-soluble collagen (PSC) extracted from bones (PSC-B), skins (PSC-S), and tendons (PSC-T) of duck feet and to determine their thermal and structural properties, for better practical application of each part of duck feet as a novel source for collagen. PSC was extracted from each part of duck feet by using 0.5 M acetic acid containing 5% (w/w) pepsin. Electrophoretic patterns showed that the ratio between α₁ and α₂ chains, which are subunit polypeptides forming collagen triple helix, was approximately 1:1 in all PSCs of duck feet. PSC-B had slightly higher molecular weights for α₁ and α₂ chains than PSC-S and PSC-T. From the results of differential scanning calorimetry (DSC), higher onset (beginning point of melting) and peak temperatures (maximum point of curve) were found at PSC-B compared to PSC-S and PSC-T (p<0.05). Fourier transform infrared spectroscopy (FT-IR) presented that PSC-S and PSC-T had similar intermolecular structures and chemical bonds, whereas PSC-B exhibited slight difference in amide A region. Irregular dense sheet-like films linked by random-coiled filaments were observed similarly. Our findings indicate that PSCs of duck feet might be characterized similarly as a mixture of collagen type I and II and suggest that duck feet could be used for collagen extraction without deboning and/or separation processes.

• Journal of Korea Water Resources Association
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• 제48권4호
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• pp.291-298
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• 2015

The aim of this study is that a theoretical formula for estimating the one-dimensional longitudinal dispersion coefficient is derived based on a transverse distribution equation for the depth averaged stream-wise velocity in open channel. In "Part I. Theoretical equation for stream-wise velocity" which is the former volume of this article, the velocity distribution equation is derived analytically based on the Shiono-Knight Model (SKM). And then incorporating the velocity distribution equation into a triple integral formula which was proposed by Fischer (1968), the one-dimensional longitudinal dispersion coefficient can be derived theoretically in "Part II. Longitudinal dispersion coefficient" which is the latter volume of this article. SKM has presented an analytical solution to the Navier-Stokes equation to describe the transverse variations, and originally been applied to straight and nearly straight compound channel. In order to use SKM in modeling non-prismatic and meandering channels, the shape of cross-section is regarded as a triangle in this study. The analytical solution for the velocity distribution is verified using Manning's equation and applied to velocity data measured at natural streams. Although the velocity equation developed in this study do not agree well with measured data case by case, the equation has a merit that the velocity distribution can be calculated only using geometric data including Manning's roughness coefficient without any measured velocity data.

• Journal of Pharmaceutical Investigation
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• 제36권5호
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• pp.343-348
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• 2006

The purpose of the present study was to evaluate the bioequivalence of two zolpidem tartrate tablets, Stilnox tablet(Sanofi-aventis Korea, reference product) and Zanilo tablet(ChoDang Pharm Co., Ltd., Korea, test product), according to the guidelines of Korea Food and Drug Administration(KFDA). After adding an internal standard(cimetropium), 250 ${\mu}L$ plasma samples were extracted using 1.3 mL of ethyl acetate. Extracted compounds were analyzed by HPLC with triple-quadrupole mass spectrometry. This method for determination of zolpidem is proved accurate and reproducible with the limit of quantitation of 1 ng/mL in human plasma. Twenty-four healthy male Korean volunteers received each medicine at the zolpidem tartrate dose of 10 mg in a $2{\times}2$ crossover study. There was one-week washout period between the doses. Plasma concentrations of zolpidem were monitored for over a period of 8 hr after the administration. $AUC_{0-t}$(the area under the plasma concentration-time curve) was calculated by the linear trapezoidal rule. $C_{max}$(maximum plasma drug concentration) and $T_{max}$(time to reach $C_{max}$) were compiled from the plasma concentration-time data. Analysis of variance was carried out using logarithmically transformed $AUC_{0-t}$ and $C_{max}$. No significant sequence effect was found for all of the bio-availability parameters indicating that the crossover design was properly performed. The 90% confidence intervals for the log transformed data were acceptable range of log 0.8 to log 1.25(e.g., log 0.92-log 1.06 for $AUC_{0-t}$, log 0.96-log 1.13 for $C_{max}$). The major parameters, $AUC_{0-t}$ and $C_{max}$ met the criteria of KFDA for bioequivalence indicating that Zanilo tablet is bioequivalent to Stilnox tablet.