• KOREAN JOURNAL OF CROP SCIENCE
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• v.31 no.2
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• pp.162-166
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• 1986

Experiments were carried out to find the varietal differences in histological structure and outer characteristics, and its relationships between each characters in the internodes of 15 barley varieties (5 covered barley, 5 naked barley and 5 malting barley). The length of 1st-3th internodes from the top was longer in malting barley varieties, covered barley varieties and naked barley varieties in the order, but of 4th-5th internodes was longer in naked barley varieties, covered barley varieties, and malting barley varieties in the order. The diameter of naked barley varieties internodes was much thicker that of malting barley varieties. The thickness of culm wall in 1st-3rd internodes was thicker naked barley varieties, covered barley varieties, and malting barley varieties in sequence and in 4th-5th inter-nodes was covered barley varieties, malting barley varieties, and naked barley varieties in the order. The number of large vascular bundles in covered barley varieties had more than that of naked barley varieties and malting barley varieties in 1st internodes. The size of large vascular bundles in covered barley varieties and naked barley varieties was larger than that of malting barley varieties. The size of large vascular bundles had significant positive correlation with thickness of culm wall and the diameter of internodes. The thickness of culm wall was negatively correlated with the length of internodes and culm, but positively correlated with the diameter of internodes.

• Korean Journal of Heritage: History & Science
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• v.49 no.1
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• pp.84-97
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• 2016

One of the assimilation policies of Japanese imperialism for the permanent domination in the colonial Joseon is the theory of integration of Japan and Joseon. The theory of integration of Japan and Joseon is a logic that Joseon (Korea) and Japan (Wae) were connected to the same ancestor on the basis of ancient myths. Also it is the assimilation ideology to justify the Colonial rule of those days through the objectification of historical identity or affinity of political and cultural relations of ancient Korean peninsula and Japan (Wae). Japan reorganized our history to meet the colonial point of view, as part of the assimilation policies based on the theory of integration of Japan and Joseon. On the other hand Japan attempted to objectify them through archaeological research and the reinterpretation of the historical remains. The survey, reinterpretation and tourist of the historic sites in historic cities such as Gyeongju and Buyeo were promoted in this context. In particular, the Buyeo, a capital of Baekje, was emphasized upon the close relevance and affinity between Sabi, Baekje and ancient Asuka (飛鳥) in Japan through research and reinterpretation on the Historic Sites. Based on them, Historic Sites Tourism was conducted by reconstructed historic sites toward the colonial Korean. In addition, after the Sino-Japanese war in 1937, Japan tried to realize the politics of space by upgrading and idealizing Buyeo as homeland or Shinto (神都) related to Japanese ancient mythology of the Asuka culture. This paper investigated in what context research, reinterpret and tourist of the historic sites progressed on Buyeo area and how it had soaked through the general public in the Japanese colonial era. First, it is on historic sites. Historic sites research on Buyeo area made an attempt by Sekino Tadashi in 1909 for the first time and the re-excavation of the old burial mounds and temple sites during the Japanese colonial period. Sekino set up a cultural relationship and influences between the ancient China (梁), Korea (百濟) and Japan (倭). Also, he emphasized that Sabi, Baekje largely received influence of Chinese culture and Baekje and Japan Asuka culture had closely relations and affinity. These views had been consistent during the Japanese colonial period. Second, it is the reinterpretation on Historic sites. Buyeo Historic Sites Preservation Society (Buyeo Gojeok Bojonhoe) was established in 1915 and Osaka Kintaro, curator of Baekje exhibition hall redefined the relationship between ancient Japan and Baekje as perspective of the assimilation ideology through the post contextual interpretation. In particular, they emphasized on the close relevance between Baekje's Historic sites and Japan, through the reinterpretation of Nakhwaam, Goransa and Cheongmasanseong. Third, it is the tourist on Historic sites. Buyeo Historic Sites Preservation Society played a leading role in Tourist on Historic sites at the Buyeo region. The main tourist destinations and course were restructured through a reinterpretation on the historic sites. Japan would like to show Buyeo as ideology area, homeland of ancient Japanese culture, toward the Koreans under Japanese colonial era. Thus, research, reinterpretation, and tourism on Historic sites were promoted while they were closely related to each other. The promoting body was Joseon Chongdokbu and pro-Japanese interest group. It's point was 'made' and 'shown' by the eyes of others and a rediscovery of Buyeo as representational space of colony.

• Journal of Veterinary Clinics
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• v.30 no.3
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• pp.166-171
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• 2013

This study was conducted to evaluate the clinical relevance and effectiveness of ovariectomy (OVE) and ovariohysterectomy (OVH) in terms of postoperative pain behavior and surgical stress. Thirteen healthy intact mongrel purpose-bred female dogs were used in this study. OVE was performed in six dogs whereas OVH was performed in seven dogs. Prior to, 1, 2, 4, 6, 12, and 24 h after surgery, pain assessment was performed by using the Short form of Composite Measure Pain Scale (CMPS-SF) and blood analysis for the determination of glucose, creatine kinase (CK), and cortisol were done. Also, surgical time, duration of anesthesia, and incision length were compared between two groups. As a result, OVH group as opposed to OVE group showed significantly longer in surgical time, duration of anesthesia, and incision length. Also, based on the two-way ANOVA test, the CMPS-SF had significant differences (p < 0.05) between two groups, with the OVE dogs having lower values at 1, 2, 4, and 6 h postoperatively. In addition, in terms of CK, the value at 1, 2, 4, 6, and 12 h were significantly (p < 0.05) increased from the baseline value for the OVH group. However, as for CK in OVE group, the values at 4, 6, and 12 h were significantly increased from the baseline value. As for blood glucose, a significant (p < 0.05) increase from the baseline was shown at 1 h postoperatively in OVH group and no significant increase was shown in OVE group. In terms of serum cortisol level, the values at the 1 and 2 h were significantly (p < 0.05) increased from the baseline value for both groups. In conclusion, our study has shown that OVE can be considered as a superior choice in terms of sterilization technique in female dogs, considering shorter incision length, surgical time, duration of anesthesia along with lower pain and surgical stress response than OVH.

• The Korean Journal of Nuclear Medicine
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• v.38 no.4
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• pp.325-329
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• 2004

Purpose: Usefulness of mouse liver S9 fraction was evaluated for the measurement of the metabolites in the in vitro metabolism study of $^{18}F$-labeled radiotracers. Materials and Methods: Mouse liver S9 fraction was isolated at au early step in the course of microsome preparation. The in vitro metabolism studies were tarried out by incubating a mixture containing the radiotracer, S9 fraction and NADPH at $37^{\ciirc}C$, and an aliquot of the mixture was analyzed at the indicated time points by radio-TLC. Metabolic defluorination was further confirmed by the incubation with calcium phosphate, a bone mimic. Results: The radiotracer $[^{18}F]1$ underwent metabolic defluorination within 15 min, which was consistent with the results of the in vivo method and the in vitro method using microsome. Radiotracer $[^{18}F]2$ was metabolized to three metabolites including $4-[^{18}F]fluorobenzoic$ acid within 60 min. It is likely that the one of these metabolites at the origin of radio-TLC was identical with the one that obtained from the in vivo and in vitro (microsome) method. Compared with the in vitro method using microsome, the method using S9 fraction gave a similar pattern of the metabolites but with a different ratio, which can be explained by the presence of cytosol in the S9 fraction. Conclusion: These results suggest that the findings of the in vitro metabolism studies using S9 fraction can reflect the in vivo metabolism of novel radiotracers in the liver. Moreover, this method can be used as a tool to determine metabolic defluorination along with calcium phosphate absorption method.

• Journal of Embryo Transfer
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• v.17 no.3
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• pp.227-234
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• 2002

This study was performed to investigate the improvement of the pregnancy rate of Al or clone embryo transfer on hCG administration in Korean Native heifer. A total of 42 heifers were treated with control, CIDR(withou E2 capsule). hCG after 7 day of hi, the pregnancy rate were spewed 53, 46, 71%. These results were significant different among the treatments(P<0.05). When the hCG were adminstrated at cloned embryo transfer, pregnanacy rate were control, hCG 5.8%, 10.4% respectively and there was no significant different between treatments. Plasma P4 concentration of hCG treatment in heifers were 3 times higher than control on 13~16 day after heat. After this, plasma P4 concentration of CIDR and hCG treated heifers were kept the 2~3 times levels. IGF-I concentration were showed no differences between pregnancy and non-pregnancy. hOG and CIDR. IGF-II concentration were revealed the differences between pregnancy and non-pregnancy in CIDR group but there was no differences in hCG administration group. Plasma cortisol were high at heat and 16 day after heat and CIDR treated group was higher than the other group. These results suggest that hCG administration was improve the pregnancy rates on Al and cloned ET, accompanying the incline of P4 concentration.

• Journal of Embryo Transfer
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• v.19 no.2
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• pp.173-183
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• 2004

This study was carried out to examine the effects of epidermal growth factor (EGF) and the number of cumulus-oocyte complexes (COCs) on in vitro maturation (IVM) of porcine immature oocytes, and on subsequent in vitro fertilization (IVF) and development (IVD). COCs were collected from antral follicles of porcine ovaries collected from abattoir, and were maturated in modified NCSU-23 (mNCSU-23) with 10% pFF, 0.6 mM cysteine, 50 ${\mu}mM{\beta}-mercaptoethanol$, 1 mM dbcAMP, 10 IU/mL PMSG and 10 IU/mL hCG, which was supplemented with or without 10 ng/mL EGF and into which 50 or 15 COCs per droplet was put. Oocytes matured in vitro, were fertilized in vitro in modified Tris-buffered medium (mTBM) with the final motile sperm concentration of 1${\times}$105 sperm/mL, and subsequently putative embryos were developed in vitro in NCSU- 23. The results are as follows. 1.In the result of IVM, 10 ng/mL EGF supplement duplicated the percentage of C4 group of COCs(41% vs 81%). But the rate of germinal vesicle breakdown (GVBD) and of nuclear maturation were not significantly different between control and EGF supplemented, or between the number of COCs per culture droplet, and there was not a significant interaction between the two factors, either. 2. In the result of IVF, there was not significantly different between control and EGF supplemented, or between the number of COCs per culture droplet, or was not a significant interaction between the two factors, in the rate of sperm penetration, in the percentage of oocytes with male pronucleus (MPN), and in the rate of polyspermy. 3. In the result of IVD, there was not significantly different between control and EGF supplemented, or between the number of COCs per culture droplet in the percentage of cleaved oocytes. There was not significantly different between the number of COCs per culture droplet, but between control and EGF supplemented (p<0.01) in the percentage of blastocysts, the number of inner cell mass (ICM), trophectoderm (TC) and total cells. There was no significant interaction between the two factors anywhere. These results suggested that 10 ng/mL EGF supplement into mNCSU-23 for IVM was effective in the production of more as well as better blastocysts during IVD through increasing the number of cells in those.