• International Journal of Computer Science & Network Security
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• v.22 no.4
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• pp.401-407
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• 2022

Electronic media are an integral part of modern civilization; educational practices are no exception, which should change the content orientations, structures and methodological approaches in accordance with the requirements of the educational market. This makes it relevant to find effective and successful configurations in the process of implementing modern educational practices. The purpose of the research lies in determining the basic principles of electronic media and their place in modern education, identifying the effectiveness of teaching disciplines with application of electronic media, as well as establishing the level of assessment by students of the need to involve different types of electronic media in the educational process and professional practice. The research methodology is complex; the descriptive method and methods of observation, analysis and synthesis have been used in the academic paper. The method of pedagogical experiment has become the principal one; the method of questionnaires and statistical methods have been also used. The hypothesis of the academic paper lies in the fact that the involvement of electronic media in the educational process makes it more effective and requires conceptual changes in educational practices. The result of the research manifests in the identification of new opportunities for the use of electronic media, leading to conceptual shifts in the framework of modern educational policies. In the future, it will be appropriate to consider the theoretical aspects of changing worldview models in education and the use of new media in the educational process, their effectiveness and relevance.

• ALGAE
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• v.37 no.2
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• pp.105-121
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• 2022

Modern seaweed farming relies heavily on seedlings from natural beds or vegetative cuttings from previous harvests. However, this farming method has some disadvantages, such as physiological variation in the seed stock and decreased genetic variability, which reduces the growth rate, carrageenan yield, and gel strength of the seaweeds. A new method of seedling production that is sustainable, scalable, and produces a large number of high-quality plantlets is needed to support the seaweed farming industry. Recent use of tissue culture and micropropagation techniques in eucheumatoid seaweed production has yielded promising results in increasing seed supply and growing uniform seedlings in large numbers in a shorter time. Several seaweed species have been successfully cultured and regenerated into new plantlets in laboratories using direct regeneration, callus culture, and protoplast culture. The use of biostimulants and plant growth regulators in culture media increases the seedling quality even further. Seedlings produced by micropropagation grew faster and had better biochemical properties than conventionally cultivated seedlings. Before being transferred to a land-based grow-out system or ocean nets for farming, tissue-cultured seedlings were recommended to undergo an acclimatization process to increase their survival rate. Regular monitoring is needed to prevent disease and pest infestations and grazing by herbivorous fish and turtles during the farming process. The current review discusses recent techniques for producing eucheumatoid and other valuable seaweed farming materials, emphasizing the efficiency of micropropagation and the transition from laboratory culture to cultivation in land-based or open-sea grow-out systems to elucidate optimal conditions for sustainable seaweed production.

• Journal of Practical Agriculture & Fisheries Research
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• v.17 no.1
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• pp.21-43
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• 2015

Korean floricultural industry has grown under the full backing of government, as it placed itself as the main export item since 2000s. Despite its high-speed growth after the domestic production scale of trillion won, the floricultural industry lost its pace after 2005, due to the market-opening of agricultural product and global economic depression. Although the national income is growing and the level of civilized living is following, spending on flowers is faltering. As of such circumstances, necessity for analyzing flower consumption trend and behavior has came out, along with the calls for expansion plan of flower consumption, under the basis of result analysis on consumer reports. The result of the research contains the trend/consumption behavior analysis on domestic and foreign flower industry to boost floricultural industry, along with reviews on various studies of the developmental process of domestic and foreign cut-flowers/pot-plants consumption trend. Also this study has reached to the various recognition of people toward flower, through a public survey. Through such results, this study would like to propose the measures for diffusion of flower-consumption culture, achieving the improvement of life-quality of public along. First, efforts on reviewing the customer accessibility is essential to create flower- culture and the consumption. Second, to eliminate the obstacles that prevents flowers from public's daily life is essential. Third is the effective public-relations on flowers. To create consuming culture and to adhere the positive images, it is essential to research and systematically organize categories of color, scent, and elements of flower and utilize them. Last proposal is the organization of flower-concerned personnels and the leading groups. The change is affected by the economical, social environment, along with the emotions of consumers. Therefore the necessity for the leading group to be the control-tower of such changes are very clear.

• Mycobiology
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• v.51 no.4
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• pp.230-238
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• 2023

Glabridin is a well-known active isoflavone found in the root of licorice (Glycyrrhiza glabra L.) that possess a wide range of biological activity. Plant cells, hairy roots, and fungal endophytes cultures are the most important alternative methods for plant resources conservation and sustainable production of natural compounds, which has received much attention in recent decades. In the present study, an efficient culture condition was optimized for the biomass accumulation and glabridin production from fungal endophyte Aspergillus eucalypticola SBU-11AE isolated from licorice root. Type of culture medium, range of pH, and licorice root extract (as an elicitor) were tested. The results showed that the highest and lowest biomass production was observed on PCB medium (6.43 ± 0.32 g/l) and peptone malt (5.85 + 0.11 g/l), respectively. The medium culture PCB was produced the highest level of glabridin (7.26 ± 0.44 mg/l), while the lowest level (4.47 ± 0.02 mg/l) was obtained from the medium peptone malt. The highest biomass (8.51 ± 0.43 g/l) and glabridin (8.30 ± 0.51 mg/l) production were observed from the PCB medium adjusted with pH = 6, while the lowest value of both traits was obtained from the same medium with pH = 7. The highest production of total glabridin (10.85 ± 0.84 mg/l) was also obtained from the culture medium treated with 100 mg/l of the plant root extract. This information can be interestingly used for the commercialization of glabridin production for further industrial applications.

• Herbal Formula Science
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• v.32 no.2
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• pp.181-191
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• 2024

Objective : Inulae Flos(IF) has been used to treat arthritis, sever furuncle, fear and palpitation, vomiting, stroke, asthma and cough in Korean Medicine. Although the anticancer activity of IF has been reported, the molecular mechanism is still not well understood. In this study, we investigated the growth inhibitory activity of an ethanol extract of IF in HT-1080 human fibrosarcoma cells and its underlying mechanisms using two-dimensional (2D) and three-dimensional (3D) cell culture system. Methods : HT-1080 cells were cultured with IF for 9 days in 3D cell culture. To check an inhibition of cell prolifelation by IF, MTT assay was performed. DNA contents were measured using flow cytometry. Western blotting was used to evaluate the regulation of cell cycle- and autophagy-related proteins. Acridine orange staining was performed to confirm autophagy, and DCF-DA staining was performed to confirm the occurrence of ROS. Results : IF controlled a spheroid formation and decreased a cell viability in 3D cell culture. IF-induced cell proliferation inhibition was associated with a distinct increase of S and G2/M phase cell distribution in 2D cell cultre. In addition, IF significantly induced autophagy and generated reactive oxygen species(ROS). Interestingly, IF-induced cell cycle arrest and autophagy were recovered after pre-treatment of N-acetyl-L-cysteine, ROS scavenger. Conclusion : Our results indicate that IF induced ROS-mediated cell cycle arrest and autophagy and it may potentially useful for human fibrosarcoma treatment.

• Clinical and Experimental Reproductive Medicine
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• v.51 no.3
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• pp.260-267
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• 2024

Objective: This study investigated the metabolic status of the spent culture media from embryos of patients with repeated implantation failure (RIF) undergoing in vitro fertilization-intracytoplasmic sperm injection cycles in comparison with the embryos from healthy fertile women. Methods: Metabolite levels in spent culture media were assessed and compared between embryos from RIF patients (n=35) and oocyte donors as controls (n=15). Protein levels of insulin-like growth factor 1 (IGF-1) were determined using Western blotting. Concentrations of glucose, pyruvate, and lactate were measured using spectrophotometry. Ionic colorimetric assay kits were utilized to analyze the concentrations of sodium, chloride, calcium, and magnesium ions. High-performance liquid chromatography was employed to measure the concentrations of glutamic acid, aspartic acid, methionine, phenylalanine, and histidine. Results: Glucose consumption and lactate secretion were higher in the control group than in the RIF group. The magnesium concentration was significantly higher in the control group than in the RIF group, but glutamic acid and aspartic acid concentrations were lower in the control group than in the RIF patients (p<0.05). The levels of IGF-1, sodium, calcium, chloride, methionine, histidine, and phenylalanine did not show statistically significant differences between the two groups. Conclusion: The metabolic profile of the culture medium of the embryos in the RIF group differed from that of the control group. These findings suggest potential factors that may affect implantation capacity in RIF patients and provide a new perspective on embryo selection.

• The Research Journal of the Costume Culture
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• v.5 no.1
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• pp.19-28
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• 1997

The purpose of this study was to identify and to trace the origins and meanings of sok (速) and bosal (菩薩). Comparative linguistic analytical approches were employed for this research. The analysis of this study indicted that sok (速) of Koryo was derived from sok (速) of Chinese. the phonetic value of sok (速) and sok (速) in Chinese are su⁴. The word sok (粟) refers to kok 곡 (穀) and kok (穀) refers to ra (羅). The bosal (菩薩) of Koroyo was related ot textile terminologies of many languages such as Hebrew, Mongolic, Manchu, Gilyak, Turkish and so on. Therefore, the bosal of Koryo was identified as a fabric term used in Koryo.

• Proceedings of the Korean Aquaculture Society Conference
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• 2005.05a
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• pp.55-55
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• 2005

• The International Journal of Costume Culture
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• v.5 no.2
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• pp.42-52
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• 2002

The purpose of this research is to survey minpo(the nations pojagi), especially supo(the embroidered pojagi), of the Yi Chosun of Korea during the nineteenth century. This study explores the history and background of minpo, its characteristics, including forms, designs, materials, and how they related to women's daily life during the Yi Chosun in social and cultural aspects. There were minpos for use in everyday life as well as for special occasions such as weddings, funerals and religions rites, including Buddhist and other services. The research undertaken here is done by classifying minpos according to composition, design, pattern and motif.

• Proceedings of the Korean Society for Applied Microbiology Conference
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• 1979.10a
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• pp.242-242
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• 1979

The general efforts of applied research and development can be divided into product development, process development, process design, process equipment design, and operation The fed batch culture as one effort of theprocess development in fermentation industry has been practiced since the early times of human history. One particular industrial application with long history is in the cultivation of the baker's yeast where the glucose effect at relatively high glucose concentration is the general rule.