• Korean Journal of Food Science and Technology
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• v.50 no.2
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• pp.238-243
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• 2018

This study aimed to compare total phenolic, total flavonoid, and vitamin C contents, antioxidant capacities, and sensory characteristics of jangachi made from green kiwifruit (Actinidia deliciosa cv. Hayward) and golden kiwifruit (A. chinensis cv. Hort16A), which were cured with doenjang and kochujang. Golden kiwifruit had higher total phenolic, total flavonoid, and vitamin C contents, and antioxidant capacities than green kiwifruit. Jangachi of both cultivars of kiwifruit had generally higher total phenolic and flavonoid contents, and antioxidant capacities than fresh kiwifruit. Doenjang jangachi of kiwifruit had higher total phenolic contents and antioxidant capacities than kochujang jangachi. Jangachi made from golden kiwifruit cured with kochujang, following pretreatment with sugar solution, had the highest overall quality on sensory evaluation among jangachies tested herein. Together, our findings suggest that kiwifruit jangachi may serve as a good dietary source of phenolics and antioxidants.

• Journal of Preventive Medicine and Public Health
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• v.40 no.5
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• pp.388-396
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• 2007

Objectives: The purpose of this study was to examine the relationship between the differences in employment status and self assessed health in Korea. Methods: We analyzed 4 year follow-up data generated by the Korean Labor and Income Panel Study(KLIPS), which was conducted on 1,207 men and 582 women who had undergone a change in employment status. The study subjects were placed into 1 of the following 4 groups based on their employment history; Non-precarious workers, Precarious to non-precarious workers, Non-precarious to precarious workers and Precarious workers. Logistic regression was then used to examine the relationship between the changes in employment status and self assessed health. Results: When males were considered, self assessed health was better among the precarious to non-precarious workers (OR 1.58, 95% CI=1.57-1.60) and the precarious workers (OR 1.29, 95% CI=1.28-1.30) than in the non-precarious workers, after adjusting for age, socioeconomic status (education level, occupational class, marital status, average equivalent household income and average number of hours worked per week), health behavior (smoking, drinking and exercise) and medical service access (regular medical examination, have chronic disease or hospitalized within 1 year). When female workers were considered, the precarious to non-precarious workers (OR 1.89, 95% CI=1.86-1.92), non-precarious to precarious workers(OR 1.24, 95% CI=1.23-1.26) and precarious workers (OR 1.27, 95% CI=1.25-1.28) all reported poorer health than the non-precarious workers after adjusting for the aforementioned factors. Conclusions: This study showed that changes in employment status were associated with differences in self assessed health among men and women. Specifically, the results of this study showed that a corresponding positive outcome based on self assessed health was greater for employees that changed from precarious to non-precarious jobs and for male employees with precarious jobs., whereas female employees with non-precarious jobs had higher self assessed health. However, additional longitudinal studies on the health effects of employment status should be conducted.

• Journal of Life Science
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• v.17 no.1 s.81
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• pp.64-69
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• 2007

In the present study, we have investigated the effect of fisetin on the apoptosis and DNA single strand breaks in ultraviolet light B (UVB)-exposed NIH3T3 cells. Exposure of cells to UVB light $(200J/m^2)$ and post-incubation in growth medium for 48 hr resulted in about 50% of cells with apoptotic nuclear fragmentation. Addition of various concentrations of fisetin in the postincubation medium, however, significantly reduced the apoptotic nuclear fragmentation as compared with the values expected when the effects are additive and independent. DNA single strand breaks induced by UVB exposure were also significantly decreased by postincubation with fisetin. By Western blot analysis, fisetin post-incubation was shown to attenuate the p53 upregulation upon UVB exposure. Furthermore, the decrease of proliferating cell nuclear antigen (PCNA) level upon UVB exposure was alleviated by fisetin postincubation. These results suggest that fisetin decrease the apoptosis and increae DNA repair in a possible association with alteration of p53 and PCNA levels in UVB-exposed cells.

• The Korean Journal of Pesticide Science
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• v.7 no.2
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• pp.131-138
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• 2003

A toxicological study of the pesticides for rice paddy to loach was conducted with iprobenfos 17% GR, diazinon 3 % GR, and butachlor 5 % GR to establish the field test method and their toxicological effects on loach under the actual field conditions. The type C of cage was more effective in the sense of a little stress from the cage. The nets for shading and for preventing the birds were necessary to maintain the water temperature and to prevent the predators. The cumulative mortality of loach exposed to iprobenfos 17% GR, diazinon 3% GR and butachlor 5% GR were 10, 55 and 22%, respectively, during 7 days of exposure. The averaged concentration of the pesticides in paddy water 2 days after application were 1.67, 0.22 and 0.26 mg/L, and mortalities were 7, 50 and 17%, respectively, representing the similar results with acute toxicity $(48h-LC_{50})$.

• Journal of Korean Society of Forest Science
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• v.88 no.1
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• pp.18-30
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• 1999

This study was carried out to compare the characteristics of hydraulic architecture by measurement of leaf specific conductivity(LSC) in the twenty-one deciduous broad-leaved species. The LSC's of stems were higher than in branches except Acer mono, A. triflorum, Betula schmidtii, Fraxinus rhynchophylla and Zelkova serrata, and lowest in junction parts as compared with stems and branches. In diffuse-porous species, the LSC was much higher in B. plalyphylla var. iaponica, B. schmidtii, Cornus controversa, Tilia amurensis than those of other species and especially lowest in A. triflorum. In ring-porous species, the LSC was much higher in Maackia amurensis, Paulownia tomentasa, Quercus aliens, Q. serrata than those of other species and lowest in Ulmus davidiana var. japonica. The LSC's of 1-year-old terminal shoots of stem(the leader and adjacent laterals) in A. triflorum, C. controversa. F. mandshurica, Q. mongolica and Z. serrata ranged from 22 to $139{\mu}{\ell}/g$ in the leaders, and 11 to $73{\mu}{\ell}/g$ in the adjacent laterals. The LSC's of leaders were usually greater than the adjacent laterals because of the hydraulic dominance of the leader shoot.

• Journal of Bio-Environment Control
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• v.27 no.3
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• pp.239-244
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• 2018

The effect of the trap equipped with diverse light-emitting lamp on the lure efficiency of whitefly (Trialeurodes vaporariorum) was investigated in the greenhouse cultivating tomato. The light-emitting lamp type equipped to trap was blue, yellow, and white light-emitting lamp. The experiment results showed that trap equipped with blue light-emitting lamp captured the most number of $110{\pm}3.2$ adult whitefly and the number of captured adult whitefly was $71{\pm}1.4$ at yellow light-emitting lamp trap and $45{\pm}1$ at white light-emitting lamp trap respectively. The wavelength distribution band of blue light-emitting lamp was between 330 nm and 430 nm. The wavelength band of yellow and white light-emitting lamp contain repellent wavelength band at the same time. These results show that the trap equipped with blue light-emitting lamp could be used effectively for whitefly control and prevention in the greenhouse cultivating tomato.

• Journal of the Korean Institute of Telematics and Electronics
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• v.27 no.11
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• pp.77-82
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• 1990

The temperature and the composition dependence of the dielectric properties of the solid solution materials in the system $xBa(Zn_{1/3}Nb_{2/3})O_{3}\[BZN]-(1-x)\Sr(Zn_{1/3}Nb{2/3)O_{3}\[SZN]$ at microwave frequency was studied. The dielectric constant and unloaded Q were $40.5{\pm}0.5,5980{\pm}100$ respectively for BZN at 10 GHz and $36.9{\pm}0.5,2700{\pm}100$ for SZN at 10.2GHz. The temperature coefficient of the resonant frequency was $+27.5ppm/{\circ}C$ for BZN and $-39.1ppm/{\circ}C$ for SZN. The results also showed that 0.3 BZN-0.7 SZN is the most temperature-stable composition among xBZN-(1-x) SZN solid solutions. In this case, the dielectric constant, the unloaded Q and $\tau_{f}$ at 9.8GHz were $41.5{\pm}0.2,2920{\pm}100$ and $-3.5ppm/{\circ}C$, respectively.

• Food Science and Preservation
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• v.14 no.3
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• pp.328-331
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• 2007

This study was conducted to investigate the effect of pediocin treatment on noodle quality during 4 days of storage at $20^{\circ}C$. The pH of noodle increased after 2 days of storage and then decreased during further storage. The total bacterial counts in noodles increased during the storage period. When pediocin was present at 1,000 ppm, bacterial counts temporarily decreased after first day of storage and then slowly increased to 4 days of storage. Coliforms were detected after 2 days of storage in noodles stored without pediocin. When pediocin was present at 300 or 500 ppm, the coliform detection time was extended to 3 days of storage. Upon treatment with 1,000 ppm of pediocin, the coliform detection time was further extended to 4 days of storage. The fungal count in noodles was 2.3 log CFU/mL initially, and did not change significantly during the first day of storage, after which time the fungal count increased quickly. The fungal counts in noodles without pediocin treatment increased more rapidly than in noodles stored with pediocin, and was 5.0 log CFU/mL after 4 days of storage. We conclude that pediocin prevented noodle deterioration on storage.

• Journal of the Korean Institute of Gas
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• v.7 no.1 s.18
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• pp.1-9
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• 2003

A Multi-distinction Equipment Screening Algorithm (MESA) is proposed. It selectively integrates Dow's F&EI as its process hazard index technique and ESA (Equipment Screening Algorithm) as qualitative hazard classification technique, and retrieves a detailed list of hazardous equipments with the total hazard indices of those equipments. The inherent expert system, which includes the accident scenarios of the equipments and processes and experts' views of them, narrows further down the list of hazardous equipments and recommends only the most notable candidates. Through the case study of distinguishing the hazardous ranking of the equipments of the LPG underground storage process, using the expert system or not, the applicability of MESA has been validated. Taking the characteristics of the process equipments with hazardous ranking in the point of process intrinsic safety, this proposed algorithm would contribute to providing engineers or managers with information on constructing safely devices and mitigation devices and on scheduling emergency response planning.

• Clinics in Shoulder and Elbow
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• v.12 no.2
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• pp.126-136
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• 2009

Purpose: We evaluated the correlation of the anatomic parameters of the acromion those represent on the magnetic resonance image (MRI) of impingement syndrome. Materials and Methods: From June, 2004 to December, 2005, 71 cases were surgically proven to be impingement syndrome, and the anterior acromial hooking angle, the lateral acromial hooking angle (AAHA and LAHA) and the acromial hooking index (AHI: the sum of the AAHA and LAHA) were compared to 16 control cases. At the same period, 55 cases were surgically proven to be partial or full thickness rotator cuff tear, and age, gender and twelve anatomic parameters, including the acromial type, the acromial angle, the anterior covering, the acromial slope, the AAHA, the lateral acromial angle, the acromial torsional angle, the lateral acromial angulation, the LAHA, the lateral covering, the acromiohumeral distance and the AHI were assessed. Results: The AAHA and AHI were increased as impingement syndrome proceeded. The acromial type and acromial angle, and the AAHA, LAHA and AHI showed significant differences between the controls and the rotator cuff tear patients on univariant analysis. On multivariant analysis, gender was most strongly correlated with rotator cuff tear. Age, AAHA and the acromial angle showed similar correlation, respectively. Conclusion: The coronal acromial shape is correlated with rotator cuff tear, and it is important to correct the lateral acromial shape when performing acromioplasty.