• Journal of the Korean Wood Science and Technology
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• v.48 no.1
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• pp.12-21
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• 2020

For quantitative evaluation of wooden structures, the mechanical performance of members has undergone outdoor exposure tests. A year-long monitoring was conducted using an SPF species. Test groups were divided into twelve (each month) to measure the moisture content, density and ultimate load. Starting from May when moisture content of the test group was at the lowest, simple failure modes were observed more frequently during the first half of the experiment, whereas complex failure modes took over during the second half. Starting from June when moisture content of the test group was the highest, ultimate load decreased by 30% in the second half compared to the first half. A multiple regression analysis confirmed that moisture content of the test group was the variable with most effect on ultimate load of various outdoor variables, and an estimation equation of a simple regression analysis revealed that moisture content and ultimate load formed an inversely proportionate relationship. It is thought that correlational relationships of variables other than moisture content could be applied with the increase in added data amount by longer periods of outdoor exposure tests.

• Journal of Korean Academy of Nursing
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• v.37 no.3
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• pp.295-304
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• 2007

Purpose: This study was conducted to develop an education program for safe drug use in the rural elderly and to measure the effect of the program. Method: This study utilized a nonequivalent control group pretest-posttest design. The subjects of this study consisted of 40 older persons who were more than 65 years old and lived in G and C moon, Y gun, Gyeongsang-bukdo and visited the public health subcenter. Twenty were assigned to the experimental group and 20 to the control group. The education was provided for one and a half hours, once a week for 3 weeks. Data was collected before, right after, and one month after the program. Result: The first hypothesis was supported(F=79.24, p=0.000) showing that the knowledge scores of the drug use of the experimental group were significantly higher than those of the control group at post education and one month after education. The second hypothesis was supported(F=23.84, p=0.000) showing that the drug misuse and abuse prevention behavior scores in the experimental group were significantly higher than those of the control group at post education and one month after the education. Conclusion: This study suggests that the education for safe drug use is effective in promoting knowledge and behavior for safe drug use of the rural elderly.

• Journal of Plant Biotechnology
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• v.7 no.3
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• pp.175-181
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• 2005

This work described some essential factors necessary for micro-propagation of banana for mass production of synthetic seeds for germ plasm conservation, and how peroxides activity of conserved tissue was influenced. Shoot tips of field grown plants were used to obtain shoot clusters on shoot proliferation medium (MS medium supplemented with 5 mg/l BAP). Using longitudinally-split shoot tip technique, 18720, 8640, 7488, 2016 plantlets were obtained from one shoot tip of Maghraby, Grand Naine, Balady, and Williams, respectively, in six subculture, one month each, on solid medium. Shoot tips excised from in vitro grown plantlets were encapsulated in calcium-alginate beads and stored at $4^{\circ}C$ for one month on half-strength MS basal medium without growth regulators or sugars. After one month all the viable-conserved synseeds formed shoots when they were transferred to MS basal medium, some of them showed synchronous formation of shoot and root systems in one week. Plants retrieved from encapsulated shoot tips were hardened off and transferred to soil.

• Archives of Plastic Surgery
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• v.46 no.3
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• pp.267-271
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• 2019

A 70-year-old man complained imbalance while walking, inability to perform ankle flexion, and could not stand on tip-toe 3 months after injury. The ankle looked swollen with loss of Achilles contour and obvious gait disturbance. Magnetic resonance imaging shows a 5-cm Achilles tendon gap. Subsequently, surgery was performed to solve the neglected Achilles tendon rupture. Patient was put under general anesthesia with a regional block. Using a nontourniquet technique, a reconstructive procedure was performed using a half-width autologous Achilles tendon graft, which was attached to the calcaneal prominence with wire in a double strand Bunnell fashion. As for the proximal stump, double core Bunnell/modified Kessler suturing was carried out to suture the graft to Achilles stump. To increase the vascularization, an ipsilateral gastrocnemius fascial flap with a distally based-pedicle was harvested to wrap around the tendon graft. At a 6-month follow-up, the patient was able to stand on tip-toe and had also regained a normal gait.

• Restorative Dentistry and Endodontics
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• v.44 no.2
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• pp.13.1-13.9
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• 2019

Objectives: This study evaluated the effect of dentin pretreatment with silver nanoparticles (SNPs) and chlorhexidine (CHX) on the microshear bond strength (${\mu}SBS$) durability of different adhesives to dentin. Materials and Methods: Occlusal surfaces of 120 human molars were ground to expose flat dentin surfaces. The specimens were randomly assigned to six groups (n = 20). Three groups (A, B, and C) were bonded with Adper Single Bond 2 (SB) and the other groups (D, E, and F) were bonded with Clearfil SE Bond (SEB). Dentin was pretreated with CHX in groups B and E, and with SNPs in groups C and F. The specimens were restored with Z250 composite. Half of the bonded surfaces in each group underwent ${\mu}SBS$ testing after 24 hours and the other half was tested after 6 months of water storage. Results: SNP application was associated with a higher ${\mu}SBS$ than was observed in the CHX and control groups for SEB after 24 hours (p < 0.05). A significantly lower ${\mu}SBS$ was observed when no dentin pretreatment was applied compared to dentin pretreatment with CHX and SNPs for SB after 24 hours (p < 0.05). The ${\mu}SBS$ values of the 6-month specimens were significantly lower than those obtained from the 24-hour specimens for all groups (p < 0.05). This decrease was much more pronounced when both adhesives were used without any dentin pretreatment (p < 0.05). Conclusions: SNPs and CHX reduced the degradation of resin-dentin bonds over a 6-month period for both adhesive systems.

• Industry Promotion Research
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• v.7 no.1
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• pp.75-80
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• 2022

Cui Bu (1454~1504 BC), named Yuanyuan, named Jinnan. Served as the deputy manager of the Korean King Chosun Hongwenguan (fifth grade official). In 1487, on the way to Jeju Island to perform official duties, because his father died, he went home from the funeral on the third day of the first lunar month in 1488, but was unfortunately on the way. Encountered a storm, and drifting at sea for nearly half a month, he landed at the "Linhai County Boundary of Taizhou Prefecture, Zhejiang Province, Datang Kingdom" (now Sanmen County). Later, Cui Bu went to Hangzhou by land near Taizhou, where he landed, then via Hangzhou, took a boat along the Beijing-Hangzhou Grand Canal to Beijing, and from Beijing by land through Shanhaiguan, and returned to his country via the Yalu River. Cui Bu stayed in China for four and a half months, 136 days, and traveled nearly 9,000 miles. After returning to China, he wrote the book "Piaohailu" in Chinese. This diary-style book has a total of more than 50,000 characters, covering politics, military, economics, culture, transportation, and local customs in the early years of Hongzhi in the Ming Dynasty. The situation is an important document for studying China's Ming Dynasty coastal defense, political system, justice, canals, cities, topography, and folklore.

• The Korean Journal of Pain
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• v.33 no.4
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• pp.395-399
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• 2020

Background: This study aimed to assess the potential efficacy of purified porcine atelocollagen (PAC) for the management of refractory chronic pain due to suspected connective tissue damage. Methods: Patients treated with PAC were retrospectively evaluated. Patients with chronic refractory pain, suspected to have originated from musculoskeletal damage or defects with the evidence of imaging studies were included. Pain intensity, using the 11-point numerical rating scale (NRS), was assessed before the procedure, and 1 month after the last procedure. Results: Eighty-eight patients were finally included for investigation. The mean NRS score was decreased from 5.8 to 4.1 after 1 month of PAC injection (P < 0.001). No independent factor was reported to be directly related to the decrease in NRS score by more than half. Conclusions: Application of PAC may have potential as a treatment option for refractory chronic musculoskeletal pain. PAC might promote tissue recovery, act as a scaffold for repair, or directly reduce inflammation.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.12
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• pp.6159-6161
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• 2012

This cross-sectional and descriptive study was aimed to evaluate women breast self-examination (BSE) practice and effects of a planned educational programme for breast cancer and BSE. The samples of the study consisted 266 women. The study data were collected by a questionnaire in six months periods as two times in a month in which the periods were defined and announced to all women. After that all the women were informed about BSE. The statue of performing BSE of women (n=146) was evaluated. They were interviewed on phone after 6 months. The collected data were analyzed by using statistical SPSS program. The average age of women was $35.68{\pm}7.54$. It is also determined that (61.3%) had no knowledge about BSE, (87.6%) had examined clinical breast examination (CBE) in a year and half of them (50.8%) never practiced BSE, (29.0%) had BSE regularly every month. Concerning the status of BSE practice before the education and after the education significant difference is found statistically (p<0.00). The significance of this study is that it is to give education about breast cancer and BSE for raising awareness among women.

• Journal of the Korean Society of Food Culture
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• v.14 no.1
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• pp.57-65
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• 1999

This study was examined the current situation of utilization of meat broth materials for the development of various broth products. The 500 housewives living in Seoul were asked. The results obtained as follows; Beef(93%) was used most frequently for making broth. In order to reduce rancid smell of broth, garlic(72%), ginger(68%), green onion(60%), onion(58%), black pepper(44%), radish(25%) were used. Most housewives used beef three or four times a month and hardly used chicken or pork for making broth. Commercial broth materials were used two or three times a month. For making broth the bricket of beef, a whole or half chicken and bones of pig were consumed most frequently. Before making broth, from flesh only blood was removed. Also housewives slightly boiled bone blood-removed in water. The older age is, the longer marriage duration is, the higher monthly income and education level is, the more beef was consumed. The higher the education level is, the more vegetables like garlic, ginger, green onion, onion, radish were used. It is suggested that in order to develop various broth products made of natural materials, the characteristics of preferred broth materials should be defined and it is necesarry to accomplish the preference test of preferred broth products.

• Industry Promotion Research
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• v.8 no.1
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• pp.143-150
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• 2023

Cui Pu Korea period official, 1487 AD to Jeju Island to perform official duties, after the death of his father, in 1488 leap on the third day of the first month home, unfortunately encountered a storm on the way, and drifting in the sea nearly half a month later, finally landed in the "Datang state Zhejiang Taizhou Prefecture near the Hai county border" (now Sanmen county). Cui Pu traveled overland from Taizhou to Hangzhou, then via Hangzhou, by boat along the Beijing-Hangzhou Grand Canal to Beijing, and then by land from Beijing through Shanhaiguan Pass, through the Yalu River back to his motherland. We have pieced together the distance he traveled, the current situation of the places he passed through. He also hopes to make a new record of the changes of these sites by revisiting the important sites he has walked. This study explores Cui Pu's footprints and reviews the history by comparing the ancient and modern places he passed through.