• Journal of Bio-Environment Control
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• v.18 no.4
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• pp.475-480
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• 2009

These studies were carried out to find the effect of packing materials and storage temperature to enhance the storability of Salicornia europaea. The fresh weight loss was less than 2% at below $10^{\circ}C$ and non-perforated package, but $25^{\circ}C$ and perforated package treatment showed more than 4% of fresh weight loss that result to deteriorate quality. The carbon dioxide and oxygen contents remained 1~2% and above 15% in non-perforated package, and these contents were in proportion to gas permeability of packing materials. All the temperature treatments except 25c showed rapidly increasing ethylene concent from 7days after storage, and the highest ethylene content was $2^{\circ}C$ treatment that should appear chilling injury. The off-odor and deterioration ratio were lowest in $5^{\circ}C$ among the temperature treatments and $50{\mu}m$ thickness ceramic film treatment at $5^{\circ}C$ storage, while packing materials did not show any trends among the temperature treatments. The shelf life based on visual quality showed highest in $50{\ss}|$ thickness ceramic film packing and $5^{\circ}C$ treatment, and that was 28days.

• Korean Journal of Animal Reproduction
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• v.20 no.2
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• pp.101-109
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• 1996

This study was done to find out the methods of long-term use of liquid boar semen in 100 ml plastic bottle for artificial insemination and to investigate differences between Lactose-Egg yolk and Biitschwiler diluents according to storage temperature, and effect of final glycerol concent ration in Lactose-Egg yolk diluent. Liquid boar semen diluted with Lactose-Egg yolk diluent showed significantly higher sperm motility (p<0.05) after 0.5 and 2h incubation at 37$^{\circ}C$,than Butschwiler diluent at all storage length when it was preserved in the 5$^{\circ}C$ refrigerator. The NAR acrosome in Lactose-Egg yolk diluent a after 0.5 and 2h incubation at 37$^{\circ}C$, respectively, during preservation periods was similar to that in Biitschwiler diluent. When liquid boar semen was preserved at 15$^{\circ}C$, liquid boar semen in the Butschwiler diluent showed significantly higher percentages of sperm motility and NAR acrosome from third day to seventh than that in Lactose-Egg yolk diluent. In the effect of final glycerol concentration of liquid boar semen in the Lactose-Egg yolk diluent, the final glycerol concentration of 2% showed higer percentages of sperm motility and NAR acrosome than that of 0, 1, 3, and 5%. Farrowing rate, litter size and average pig weight at birth did not differ significantly between Lactose-Egg yolk and But schwiler diluents. As a result of this study, we found out that liquid boar semen can be stored for 6-7 days at 5$^{\circ}C$ in Lactose-Egg yolk diluent and at 15$^{\circ}C$ in Butschwiler diluent.

• Asian Journal of Turfgrass Science
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• v.16 no.1
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• pp.1-10
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• 2002

The influence of calcium on the growth of creeping bentgrass 'Penn-Al', perennial ryegrass 'Palmer II', Kentuckuy bluegrass 'Nassou' and tall fescue 'Boonsai 2000' in greenhouse was investigated. Creeping bentgrass 'Penn-A1', Kentucky bluegrass 'Nassou' and tall fescue 'Boonsai 2000' at Ca 4.0 me/L, and perennial ryegrass 'Palmer II' at Ca 2.0 me/L showed the best shoot growth. Creeping bentgrass 'Penn-A1', perennial ryegrass 'Palmer II' and Kentucky bluegrass 'Nassou' at Ca 1.0 me/L, and tall fescue 'Boonsai 2000' at Ca 4.0 me/L showed the best root growth, and there was little or no difference between different Ca concentrations. Creeping bentgrass 'Penn-Al' and Kentucky bluegrass 'Nassou' at Ca 4.0 mea, and perennial ryegrass 'Palmer II' at Ca 1.0 me/L had the highest number of tillers, and tall fescue 'Boonsai 2000' at Ca 4.0 me/L had the highest, but there was no difference between different Ca concentrations. As application rate of Ca concentration became higher, the concent of Ca in plant tissue increased, while the content of Mg in plant tissue decreased, and the content of Fe in plant tissue increased to Ca 4.0 me/L. The Ca treatment had not effect on N, p, K, and Zn of tissue content. The wick pot applied will be to research of plant nutrition in future because utilization of wick pot has an excellent precision and convenience.

• Journal of Nutrition and Health
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• v.40 no.1
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• pp.49-57
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• 2007

To estimate whether serum leptin has any effects on body composition during the lactational and postnatal periods, we investigated the relationship of serum leptin levels and anthropometric parameters at right after delivery and 16 weeks after delivery in mothers and their infants. Subjects who signed the concent form, participated in this study were recruited from K university hospital. Characteristics of the subjects (age; $31.0{\pm}4.2$ yr, gestation period; $39.5{\pm}1.0$ wk) were investigated and anthropometric parameters (weight, height, body mass index and percent body fat for mothers, and weight, height, head circumference, chest circumference, and Kaup index for infants) were measured. Serum leptin levels of mothers and their infants also measured. Mean maternal serum leptin levels were $9.9{\pm}8.2ng/ml$ and $9.1{\pm}7.2ng/ml$ at right after delivery and 16 weeks after delivery, respectively showing no significant differences. Mean infant's serum leptin levels at birth $(1.8{\pm}0.4ng/ml)$ were significantly lower than that of at 16 weeks after birth $(4.2{\pm}0.8ng/ml)$ (p < 0.001). Leptin levels of male infants were not different from those of female infants. There were no correlations between the maternal serum leptin levels with their body weight, percent body fat after delivery. However, significant correlations were found between maternal serum leptin levels with their body weight, BMI, percent body fat at 16 weeks after delivery (r = 0.80, p < 0.01, r = 0.90, p < 0.001; r = 0.83, p < 0.01, respectively). There were no correlations between the infant's serum leptin levels and their weight, height, head circumference, and chest circumference. No significant relations were also found between maternal serum leptin levels with those of their infants. As a conclusion, maternal serum levels of leptin should be used with a caution to estimate their infant's leptin levels as well as their anthropometric parameters. Further researches are needed to examine the relationship among the leptin levels of mother's serum, breast milk, placenta, and infant's serum.

• The Journal of Art Theory & Practice
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• no.7
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• pp.165-188
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• 2009

In the development of linear perspective, Brook Taylor's theory has achieved a special position. With his method described in Linear Perspective(1715) and New Principles of Linear Perspective(1719), the subject of linear perspective became a generalized and abstract theory rather than a practical method for painters. He is known to be the first who used the term 'vanishing point'. Although a similar concept has been used form the early stage of Renaissance linear perspective, he developed a new method of British perspective technique of measure points based on the concept of 'vanishing points'. In the 15th and 16th century linear perspective, pictorial space is considered as independent space detached from the outer world. Albertian method of linear perspective is to construct a pavement on the picture in accordance with the centric point where the centric ray of the visual pyramid strikes the picture plane. Comparison to this traditional method, Taylor established the concent of a vanishing point (and a vanishing line), namely, the point (and the line) where a line (and a plane) through the eye point parallel to the considered line (and the plane) meets the picture plane. In the traditional situation like in Albertian method, the picture plane was assumed to be vertical and the center of the picture usually corresponded with the vanishing point. On the other hand, Taylor emphasized the role of vanishing points, and as a result, his method entered the domain of projective geometry rather than Euclidean geometry. For Taylor's theory was highly abstract and difficult to apply for the practitioners, there appeared many perspective treatises based on his theory in England since 1740s. Joshua Kirby's Dr. Brook Taylor's Method of Perspective Made Easy, Both in Theory and Practice(1754) was one of the most popular treatises among these posterior writings. As a well-known painter of the 18th century English society and perspective professor of the St. Martin's Lane Academy, Kirby tried to bridge the gap between the practice of the artists and the mathematical theory of Taylor. Trying to ease the common readers into Taylor's method, Kirby somehow abbreviated and even omitted several crucial parts of Taylor's ideas, especially concerning to the inverse problems of perspective projection. Taylor's theory and Kirby's handbook reveal us that the development of linear perspective in European society entered a transitional phase in the 18th century. In the European tradition, linear perspective means a representational system to indicated the three-dimensional nature of space and the image of objects on the two-dimensional surface, using the central projection method. However, Taylor and following scholars converted linear perspective as a complete mathematical and abstract theory. Such a development was also due to concern and interest of contemporary artists toward new visions of infinite space and kaleidoscopic phenomena of visual perception.

• Journal of Korean Society of Environmental Engineers
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• v.31 no.10
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• pp.927-932
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• 2009

Toxic and recalcitrant organic pollutants in wastewaters can be effectively treated when advanced oxidation and biodegradation are combined, ideally with intimate coupling, in which both processes occur simultaneously in the same system. One means to achieve intimate coupling is to coat nanoscale $TiO_2$ on the outside of macroporous biofilm carriers. This study investigated the kinetics of photocatalysis with $TiO_2$-coated porous carriers. The carriers were made of polyvinyl alcohol (PVA) and coated with $TiO_2$ using a low-temperature sol-gel process. The $TiO_2$-coated carriers catalyzed the oxidation of methylene blue (MB) effectively under irradiation of UV light. The overall reaction rate with adsorption and photolysis saturated at high MB concentration, and approached the adsorption rate, which was first order for all MB concent rations. This result indicates that adsorbed MB may have slowed photocatalysis by blocking active sites for photocatalysis. The overall kinetics could be described by a quasi-Langmuir model. The estimated maximum specific (per unit mass of $TiO_2$) transformation rate of MB by the $TiO_2$-coated carriers was four times larger than that obtained from slurry-$TiO_2$ reactors. This observation demonstrated that the $TiO_2$ present as a coating on the carriers maintained high efficiency for transforming recalcitrant organic matter via photocatalysis. These findings serve as a foundation for advancement of an intimate coupling of photocatalysis to biodegradation.

• Korean Journal of Social Welfare
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• v.56 no.2
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• pp.29-52
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• 2004

Social welfare has transformed from a provider-centered welfare into a user-centered welfare. This trend have to increase the right to welfare and convenience for users. If the goal of social welfare guaranteed the respecting man's life and dignity, we had not regarded service users as the weak in the welfare system. The reinforcement of service users as the reconfirmation of welfare user's identity, mistreatment and violation of another's rights, self-determination must have the advocacy system. The advocacy for social welfare is the activity for benefit of individual, group, and community, and, protection, guarantee and maintenance of client's right. However, the client is hard to realization of right. therefore We have to support the activity for advocacy. The advocacy take aim the basic need of life and need the system for life support and safeguard client's rights. The mission of the advocacy for welfare service user is to advance the dignity, equality, self-determination, and expressed choices of individuals. We promote, expand, protect and seek to ensure the human and legal rights of individuals through the provision of information and advocacy. The advocacy system will carry out this mission in partnership with welfare service users. The goals for the advocacy system are organized into the following focus areas, which are not listed in order of priority: the majority guardian system and the support activity for service users, a predicament solution activity, service assessment, informed concent system.

• Women's Health Nursing
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• v.9 no.2
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• pp.105-112
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• 2003

The survey was conducted to look out the characteristics of menstruation and it's management, menstrual attitudes and degree of dysmenorrhea in the adult women. The subjects were 601 women, aged 20 year old and over, selected by convenient sampling. The results were as follows; 1. The mean age of the subjects was 29.1 years, the subjects were consisted of 346 unmarried and 304 delivery experienced person. 2. The characteristics of menstruation were as follows ; irregular 167 person(27.8%), painful 451 person(75%), mean score of pain was 5.9 point and first day was most severe(45.1%). On the while, they have used the method to manage the pain such as "endure 50.8%", "to have a medicine 31.5%". 3. Menstrual attitudes were as follows; attitudes was negative such as it was meaningful as a woman (78.9%), only for birth a baby (51.6%), and menstruation was acceptable (42.9%), hope to get away(28.8%). 4. The degree of dysmenorrhea was a significant difference by age(F=4.0, P<0.01). Especially, in the subcategory, it was significant except for water retension. That is, lower concent ration(F=2.60, p<0.05), negative affect(F=3.09, p<0.05), behavior change(F=6.41, p<0.050), pain(F=3.89, p<0.01), autonomic nerve response(F=2.80, p<0.05). We can conclude there were many women to have negative attitudes to menstruation and first day was most severe dysmenorrhea and it was different by age. From this results, we may suggest as follows; 1. We suggest the program for women to have a positive attitudes will be developed. 2. We can suggest that we need to develop the active and effective method to control dysmenorrhea in the first day during menstruation.

• Journal of the Korean Society of Radiology
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• v.13 no.5
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• pp.721-728
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• 2019

The purpose of this study was to evaluate the relationship between bone mineral density (BMD) and body composition (BC) or backmuscle strength (BS). Sixty-one participants were measured by BMD using ultrasound bone densitometry and Inbody for BC (i.e., SLM=Soft lean mass, SMM=Skeletal muscle mass, FS=Fitness score. et al.), BS after self-questionnaire for life cycle. This study was performed after approving Institutional Review Board and obtaining the informed concent from all participants. Participants was divided into two group by BMD T-score; $T-score{\geq}-1.0$, T-score<-1.0. Statistical analysis was performed by using SPSS ver. 22.0(USA), Spearma test for correlation between BMD and BC or BS. BMD or SLM, BS was increased with increasing physical activity or body mass index. SMM or SMM, FS of BMD $T-score{\geq}-1.0$ group was higher than that of T-score <-1.0 group as well as BS(p>0.05). BMD T-score was correlated positively with SLM(r= 0.424) or SMM(r= 0.431) in men, as well as in women(p<0.05). BS was correlated positively with SLM or SMM, FS. BS was significantly positive correlated with BMD in women group (r= 0.591, p= 0.001), but not in men group. We concluded that BMD is the relationship with SLM or SMM, as well as BS in women.

• Korean Journal of Animal Reproduction
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• v.20 no.2
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• pp.111-117
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• 1996

This experiment was designed to evaluate the effect of transforming growth factor-$\beta$ (TGF-$\beta$) and insulin-like growth factor-I (IGF-I) in bovine oocyte maturation in the presence or absence of serum on subsequent fertilization and embryo development. In addition, various concent rations of these growth factors were evaluated for the ability to promote development of eight-cell stage embryos to the blastocyst stage. Cumulus-oocyte complexes were recovered from 2 to 6 mm follicles obtained from slaughterhouse ovaries and cultured at 38.5$^{\circ}C$ for 24 hours in TCM-199 (HEPES Modification) with or with out 20 % fetal bovine serum (FBS) to which the following growth factors were added TGF$\beta$ IGF-l or TGF $\beta$ + IGF-I, all at 10 ng/ml each. The matured oocytes were fertilized in IVF-TL medium with frozen-thawed semen at a concentration of 1 ${\times}$ 10$^6$ cells/ml of fertilization medium following Percoll separation. After 24 hours of sperm-egg incubation, the embryos were transferred to CZB medium without glucose for 48 hours and then cultured in TCM-199 with 20% fetal bovine serum (FBS) for 96 hours. The addition of growth factors to IVM medium in the presence of serum had no effect on cleavage and subsequent embryo devlopment to blastocyst. In the absence of serum, TGF- improved cleavage and development to blastocyst compared to control's(p<0.05) and no synergistic effeet of IGF-I + TGF-$\beta$ was observed. In the second experiment, eight-cell embryos obtained by in vitro maturation (IVM) in TCM-199 + 20% FBS without growth facrors and in vitro fertil-ization (IVF) were cultured in the in vitro cuiture (IVC) medium supplemented with 5, 10 ng/ml TGF-$\beta$ or 5, 10, 50, 100 ng/ml IGF-I. Cleavage rate and development to the blastocyst stage was observed during seven days of incubation. The supplementation of 10 ng/ml TGF-$\beta$ to lVC medium for eight-cell embryos improved development to blastocyst (p<0.05) compared to control. In conclusion, these data indicate that the supplementation of growth factors to IVM medium in the presence of serum does not influence cleavage and subsequent embryo development. However, significantly more oocytes matured in serum-free TCM-199 and eight-cell embryos cultured in lVC medium developed to blastocyst with supplementation of 10ng/ml TGF-$\beta$.