• Korean Journal of Veterinary Service
• /
• v.18 no.1
• /
• pp.41-56
• /
• 1995

The present study was conducted to investigate results of B. anthracis isolated from Anthrax in the Kyong-Ju of Feb. 12. 1994. 1. In biochemical feature, B. anthracis was a gram-positive rod, non-motility, sporulation, capsulation. It was positive in gelatinase, starch hydrolysis, glucose. But negative in urease, arabinose, mannitol, xylose. 2. B. anthracis grew well on B4 Br A TSA after incubation for 24 hours. The organisim grew well on BA, Br. A, NA, TSA after incubation for 72 hours. The media grew well on Br A instead of BA. 3. On 5% blood agar by laboratory animal, ${\beta}$ -hemolysis was produced from 36 hours to 48 hours incubation. There was perfect ${\beta}$-hemolysis after incubation for 48 hours. On the other side ${\beta}$-hemolysis was begun on 5% goat blood agar after incubation for 60 hours. 4. In the test of antimicrobial susceptibility, B. anthracis was very sensitive to AM, CF, TE, ENR, GM, AN, DFX, S, P, TYLO, N, KM, C, E, Lins＋Sp, NN, CC, CFP, CB were sensitive one by one. B. anthracis was no-sensitive to L, XNL, TIA, CL, SXT 5. B. anthracis had never sensitivity to direct inoculation of rat and chicken, after subcutanous inj. It was very sensitive to mouse and goat, hamster, guinea pig, rabbit had a sensibility one by one. 6. The dead laboratory animal which had been inoculated with B. anthracis preserved at $37^{\circ}C$ incubation, B. anthracis didn't cultivate on non-dissected animal after 80 hours but cultivate on dissected animal after 360 hours. 7. The rapidly death could cause high concentration, died from 420 after S. C. 8. The blood smeared samples of hamster from inoculation with B. anthracis, spore germinated In 37$^{\circ}C$ after 5 hours, in $32^{\circ}C$ after 6 hours, in room temperature after 9 hours, in $-4^{\circ}C$ to $-20^{\circ}C$ after 10 hours. 9. B, anthracis inoculated to laboratory animal after SC or PO. Mice and rats feces didn't cultivated with B. anthracis after SC, but did cultivated with B. anthracis after PO. 10. In the test of disinfectant, B. anthracis was high effective to $HgC1_2$, formalin, effect phenol, cresol, but non-effect NaOH, ethanol.

• Korean Journal of Food Science and Technology
• /
• v.17 no.3
• /
• pp.197-202
• /
• 1985

In order to evaluate the aptness for the preparation of liquid-yogurt, microbiological properties of 8 Lactobacilli isolated from 7 Korean liquid-yogurts were investigated. To accelerate acid-producing ability in skim milk, L. bulgaricus D, L. casei A and L. casei E need to supply with glucose, and L. Casei A and L. csaei E also need milk-protein hydrolyzate, but L. jugurti B, L. jugurti C, L. jugurti G, L. helveticus F and L. acidophilus B did not need those supplements. In cultivation in skim milk supplemented with glucose, L. jugurti B, L. jugurti C, L. jugurti G. L. helveticus F and L. bulgaricus D showed rapidity in acid development and weakness in cell viability, but L. acidophilus B, L. casei A and L. casei E showed slowness in acid development and highness in cell viability. Liquid-yogurts made by L. casei A or L. casei E had no sedimentation during storage but those made by L. jugurti B, L. jugurti C, L. jngurti G, L. helveticus F, L. bulgaricus D, or L. acidophilus B had much sedimentation. In sensory evaluation, Liquid-yogurts made by L. casei A or L. casei E had good response but those made by L. jugurti B, L. jugurti C, L. jugurti G, L. helveticus F, L. bulgaricus D or L. acidophilus B did not. Among 8 Lactobacilli examined, L. casei A and L. casei E were thought to have more suitable properties for the preparation of liquid-yogurt though they required a long period of cultivation.

• Archives of Pharmacal Research
• /
• v.20 no.6
• /
• pp.555-559
• /
• 1997

The three different batches of an oral sustained release melatonin (MT) delivery system were prepared by aqueous-based fluid-bed coating of the sugar spheres for the evaluation of in vitro release characteristics and plasma concentration profiles in human subjects. The MT contents in 20% coated sugar spheres of three batches (B1, B2 and B3) were $3.3{\pm}0.08$, $2.4{\pm}0.1$ and $2.5{\pm}0.13$ mg per gram of coated sugar spheres, respectively. The release profiles of three different batches had a very similar fashion. However, the release profiles of three different batches had a very similar fashion. However, the release half-lives $(T_{50%})$ of MT from B1, B2 and B3 was $3.70{\pm}0.2$, $5.2{\pm}0.2$ and $4.9{\pm}0.07h$, respectively. Plasma concentration profiles of sustained release 0.2mg melatonin-loaded sugar spheres containing 10% immediate release melatonin in gelatin capsules (B1 and B2) were then evaluated in human subjects. The in vivo plasma concentration profies of the two batches (B1 and B2) were very similar each other and located between the physiological endogenous ranges. The time to reach the peak concentration $(T_max)$ was more advanced in case of B1 when compared to B2. However, there was no statistically significant difference in the maximum concentration $(C_max)$ and the area under the curve (AUC) between B1 and B2. The AUC of melatonin-loaded sugar spheres containing 10% and 20% immediate release MT in human subjects had a good linearity between dose and AUC, regardless of the fraction of immediate release MT, indicating the first order elimination process of MT within these doses. The current oral sustained release MT delivery system may be utilized to treat circadian rhythm disorders if it is proven to be more clinically useful when compared to immediate release MT.

• Journal of Practical Agriculture & Fisheries Research
• /
• v.23 no.1
• /
• pp.67-80
• /
• 2021

We analyzed the effect of planting site (elevation: high, middle, low) and temperature condition of orchard on the frost injury occurrence and storage characteristics of persimmon (Diospyros kaki cv. 'Fuyu) fruits under an early fall frost at two orchards, Changwon (A) and Changnyeong (B), Gyeongsangnam-do Korea. Also, the fruits picked at Nov. 5 and Nov. 20 were MA stored to investigate the quality and chilling injury of fruits. On 2-way factor analysis, both planting elevation and orchard factor had not a significant effect on fruit characteristics (weight, firmness, soluble solid), while planting elevation factor did on the skin color (hunter 'a')(p<0.05). A fruit skin coloration at orchard A was faster than that at orchard B. At low elevation of orchard B, 2% fruits were frost injured at harvest season. On LDPE film MA storage with the fruits harvested at Nov. 5 and Nov. 20, the fruits at orchard A had higher fruit firmness than those of orchard B during storage. In addition, the 73% (orchard A) and 85%(orchard B) fruits harvested at Nov. 5 showed no chilling injury 80 days after storage. However, At harvest of Nov, 20 (after incidence of frost), only the 14% fruits of orchard B had no the chilling disorder 80 days after storage, even though 76% fruits at orchard A did.

• Proceedings of the Korea Electromagnetic Engineering Society Conference
• /
• 2003.11a
• /
• pp.294-298
• /
• 2003

In this paper, the modeling and design of high-Q multilayer passives have been investigated, and multilayer diplexer for GSM/DCS applications has been designed and fabricated using the passives. To minimize the system, the configuration of a multilayer inductor has involved a square spiral structure. Modeling of a multilayer inductor was performed by the subsystems of distributed components, and using the modeling the optimal structures of the high-Q multilayer inductor could be designed by analyzing parasitics and couplings which affect their frequency characteristics. Multilayer diplexer for GSM/DCS application has been designed and fabricated using LTCC technology. LPF for GSM band had the passband insertion loss of less than 0.55 dB, the return loss of more than 12 dB, and the isolation level of more than 26 dB by locating attenuation pole at 1800 MHz. HPF for DCS band had the passband insertion loss of less than 0.82 dB, the return loss of more than 11 dB, and the isolation level of more than 38 dB by locating attenuation pole at 930 MHz.

• Natural Product Sciences
• /
• v.4 no.3
• /
• pp.161-169
• /
• 1998

The analogues of lichen components showing anti-tyrosinase activities were synthesized. 4-Alkylresorcinol derivatives showed both the inhibitory activity and cytotoxicity in B-16 melanoma cells at the doses of 10 mM to 1.2 mM. Resorcinol and 4-methylresorcinol showed the inhibitory effect with a low cytotoxicity at the doses of 2.5 mM and $600\;{\mu}M$ among 4-alkylresorcinols, respectively. Some diphenylmethane derivatives (Type A, B, and C) had strong activities with a low cytotoxicity. While xanthine derivatives had no effect. Glucosides of 4,5-alkylresorcinol and the diphenylmethane derivative (Type B) were prepared to decrease the cytotoxicity. As a result, no effect were observed. Liposome of the diphenylmethane derivative (Type B) was prepared for the same purpose, and the latter showed a remarkable effect at the dose of $15\;{\mu}M$ with a low cytotoxicity.

• Women's Health Nursing
• /
• v.29 no.4
• /
• pp.328-336
• /
• 2023

Purpose: This study aimed to identify factors influencing the health-related quality of life (HRQoL) of older adult women with sarcopenia. Methods: The study was secondary data analysis using data from the 2019 Korea National Health and Nutrition Examination Survey. The final sample consisted of 142 women aged 60 years and older with sarcopenia and were selected from 8,110 women. The participants was analyzed using complex descriptive statistics, independent t-test, and regression. Results: In terms of HRQoL, three general characteristics were found to be influential, with an explanatory power of 56.0%: difficulty climbing stairs, difficulty working, and perceived health status. Having no or mild difficulty when climbing stairs (B=.20, p=.001; B=.21, p<.001) and no or mild difficulty when working (B=.25, p=. 002; B=.208, p=.013) had a significant effect on HRQoL compared to severe difficulty. Having good or ordinary perceived health status had a significant effect on the HRQoL (B=.11, p<.001; B=.09, p<.001). Conclusion: Based on study findings that the HRQoL of older adult women with sarcopenia were influenced by difficulty climbing stairs and working, as well as good perceived health status, healthcare providers should assist elderly women to maintain physical activities in their daily lives.

• Culinary science and hospitality research
• /
• v.22 no.4
• /
• pp.277-287
• /
• 2016

This research was conducted over four weeks from April 1, 2016 until April 30. Data collection was of responses from customers who a self-targeting customers who have visited more than 10 eating out establishments in downtown Seoul. First, a regression analysis was conducted to analyze the effect of activity of the food service industry marketing communications on customer satisfaction. First, advertising, B=0.107 (p<.001), convenient, B=0.093 (p<.05), social B=0.294 (p<.01), PR B=0.334 (p<.001), sales promotion B=0.542 (p<.001), personnel sales each had a significant positive influence (+) on customer satisfaction B=0.111 (p<.01). Secondly, menu selection catering property between marketing communications and customer satisfaction analysis of the impact of human Sales were significantly positive (+) Publicity Department had the effect of (-). In addition, advertising and sales promotion did not have any moderating effect.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.15 no.2
• /
• pp.165-171
• /
• 2004

In this paper, the modeling and design of high-Q multilayer passives have been investigated, and multilayer diplexer for GSM/DCS applications has been designed and fabricated using the passives. Modeling of a multilayer inductor was performed by the subsystems of distributed components, and using the modeling the optimal structures of the high-Q multilayer inductor could be designed by analyzing parasitics and couplings which affect their frequency characteristics. Multilayer diplexers for GSM/DCS applications have been designed and fabricated using LTCC technology. LPF for GSM band had the passband insertion loss of less than 0.55 dB, the return loss of more than 12 dB, and the isolation level of more than 26 dB. HPF for DCS band had the passband insertion loss of less than 0.82 dB, the return loss of more than 11 dB, and the isolation level of more than 38 dB.

• Microbiology and Biotechnology Letters
• /
• v.16 no.5
• /
• pp.343-347
• /
• 1988

The promoters of alkali-tolerant Bacillus sp. had been cloned in the promoter probe vector pPL703 and recombinant plasmid p-12 had been constructed. As a result of subcloning, two different promoters were found to exist in the cloned 2.9 kb promoter fragment and two recombinant plasmids p-l2B1 and p-l2B2, each harboring different promoter, were constructed. The promoter activity, which was expressed in the CAT specific activity, of p-l2B1 was 7 times higher than that of p-l2B2. The promoter activity as a function of growth revealed that both promoters of p-l2B1 and p-l2B2 were expressed after the late logarithmic growth phase and repressed in the presence of 1.0％ (w/v) glucose.