• Journal of the Korean Society of Physical Medicine
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• v.13 no.2
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• pp.109-114
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• 2018

PURPOSE: The purpose of this study conducted the experiment to check change of ability to grip depending on normal male adult's elbow flexion angle and the effect of kinesiology tape application. METHODS: Normal male adults who studies in H university where located in Kyoungbook state and did not have any factors like fracture, osteoarthritis, deformities and non-neurologic issue which might influence the result of this study were selected as subjects. Elbow of subjects were applied by 5cm wideness kinesiology tape and elbow's angle was selected by $0^{\circ}$, $45^{\circ}$, $90^{\circ}$, $135^{\circ}$ using Goniometer. The change of ability to grip depending on flexion was measured by an electronic dynamometer before and after taping. RESULTS: Before and after taping elbow joint, both ability to grip decrease in more flexion angle and $135^{\circ}$ of elbow flexion was lowest value, 299.84N. Using kinesiology tape, neutral position $0^{\circ}$ was the highest value, 352.26N. The lowest was 331.68N on $135^{\circ}$. According to verifying the change of ability to grip depending on elbow flexion and the change of ability to grip after taping with paired t-test, the result was p<.05, there was significant difference. CONCLUSION: Using electronic dynamometer and estimating the ability to grip after and before kinesiology tape, the ability to grip decrease in more elbow flexion. The ability to grip after using kinesiology tape was relatively higher than before taping.

• Fashion & Textile Research Journal
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• v.24 no.1
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• pp.66-80
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• 2022

Even before the Covid-19 outbreak, the second-hand fashion market has been growing as the fashion industry strives towards sustainability. It has also accelerated due to the economic contraction caused by the pandemic. In previous studies, the second-hand market has been steadily studied; however, the research is insufficient compared to the diversified market. Therefore, this study investigates changes in consumers' perception of the second-hand fashion market affected by Covid-19. This study collected text data with the keyword 'second-hand fashion' from various blogs. We analyzed 24,000 posts before and after the Covid-19 outbreak by applying the LDA algorithm for topic modeling and content analysis. Seven and nine different topics for the period before and after the pandemic respectively were derived. The results revealed that during the pandemic the consumers realized the practical value of sustainability in their daily lives than they did before the pandemic. Furthermore, they tried to minimize transaction anxiety by using diverse platforms with advanced technology. They also realized economic value by buying and selling sneakers in the popular sneakers resale market. The results could help understand the rapidly growing second-hand fashion market during Covid-19.

• Journal of the Korea Safety Management & Science
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• v.19 no.4
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• pp.169-182
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• 2017

Predicting a box office gross in the film industry is an important goal. Many works have analyzed the elements of a film making. Previous studies have suggested several methods for predicting box office such as a model for distinguishing people's reactions by using a sentiment analysis, a study on the period of influence of word-of-mouth effect through SNS. These works discover that a word of mouth (WOM) effect through SNS influences customers' choice of movies. Therefore, this study analyzes correlations between a box office gross and a ratio of people reaction to a certain movie by extracting their feedback on the film from before and after of the film opening. In this work, people's reactions to the movie are categorized into positive, neutral, and negative opinions by employing sentiment analysis. In order to proceed the research analyses in this work, North American tweets are collected between March 2011 and August 2012. There is no correlation for each analysis that has been conducted in this work, hereby rate of tweets before and after opening of movies does not have relationship between a box office gross.

• Molecules and Cells
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• v.19 no.1
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• pp.74-80
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• 2005

Stress is known to inhibit granule cell proliferation in the hippocampus. However, recent studies suggest that the commonly used dose of bromodeoxyuridine (BrdU) is insufficient to label all fractions of granule cells. Furthermore, stress-induced changes in BrdU availability may influence the labeling of newly born cells. To investigate whether changes in BrdU availability affect measurements of stress-induced granule cell proliferation, granule cell proliferation was assessed using injection of high doses of BrdU before and after restraint stress lasting 1 h. In addition, to determine whether stress-induced changes in plasma corticosterone levels were influenced by the BrdU, time-dependent changes in plasma corticosterone levels over 2 h after BrdU injection were compared with total accumulated plasma corticosterone levels [as determined by areas under the curve (AUC)]. Restraint stress significantly reduced the numbers of BrdU-labeled cells and clusters in the granule cell layer (GCL) of rats that received BrdU after stress, and decreases of similar magnitude were observed when the rats were given BrdU before stress. BrdU injection enhanced the stress-induced plasma corticosterone response, but there was no difference between the mean AUCs of plasma corticosterone levels of animals injected with BrdU before or after stress. These observations suggest that restraint stress decreases granule cell proliferation, and that this may be influenced by the extent and duration of plasma corticosterone increases rather than by changes in the availability of BrdU.

• Journal of The Korean Society of Integrative Medicine
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• v.10 no.3
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• pp.63-72
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• 2022

Purpose : Several studies have investigated the effects of dynamic stretching (DS) and self-mobilization (SM), however, studies comparing the two interventions are rare. Therefore, the purpose of this study was to compare the effects of DS and SM on ankle strength, dorsiflexion range of motion (DFROM), and balance to determine which is superior. Methods : Thirty-two healthy young adults participated in this study. Participants were randomly assigned to two groups (SM and DS). DS was performed for the purpose of stretching the medial gastrocnemius muscle. For the SM group, ankle joint SM was performed in three ways. For all participants, the following measurements were performed as pre- and post-tests: isometric strength of dorsiflexor and plantar flexor, weight-bearing lunge test (WBLT) to evaluate DFROM, Tetrax system to evaluate static balance, and y balance test (YBT) to evaluate dynamic balance. Differences before and after the intervention within each group were compared using paired t-test. Also, the variable's variation was compared between groups using an independent t-test. Results : Significant differences were found in ankle dorsiflexor strength, WBLT, YBT, weight distribution index (WDI) (pillow and opened eyes; PO), and stability index (ST) (normal and closed eyes; NC) before and after intervention in the SM group (p<.05). In the DS group, significant differences were found in ankle dorsiflexor and plantar flexor strength, WBLT, YBT anterior, WDI (normal and opened eyes; NO, PO), and ST (NO, NC, PO, pillow and closed eyes) before and after the intervention (p<.05). Ankle plantar flexor strength and WDI (PO) were significantly different between groups. Conclusion : Based on the results of this study, DS or SM can be considered as a possibility for selective use according to variables for improving ankle joint function (DFROM, muscle strength, balance).

• Journal of Dental Anesthesia and Pain Medicine
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• v.23 no.5
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• pp.281-285
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• 2023

Background: Dentists bend needles prior to certain injections; however, there are concerns regarding needle fracture, lumen occlusion, and sharps handling. A previous study found that a 30-gauge needle fractures after four to nine 90° bends. This fatigue life study evaluated how many 90° bends a 30-gauge dental needle will sustain before fracture when bent using a needle guide. Methods: Two operators at Element Materials Technology, an independent testing, inspection, and certification company tested 48 30-gauge needles. After applying the needle guide, the operators bent the needle to a 90° angle and expressed the anesthetic from the tip. The needle was then bent back to a 0° angle, and the functionality was tested again. This process was repeated until the anesthetic failed to pass through the end of the needle due to fracture or obstruction. Each operator tested 24 needles (12 needles from each lot), and the number of sustained bends before the needle fracture was recorded. Results: The average number of sustained bends before needle failure was 40.33 (95% confidence interval = 37.41-43.26), with a minimum of 20, median of 40, and a maximum of 54. In each trial, the lumen remained patent until the needle fractured. The difference between the operators was statistically significant (P < 0.001). No significant differences in performance between needle lots were observed (P = 0.504). Conclusion: Our results suggest that using a needle guide increases the number of sustained bends before needle fracture (P < 0.000001) than those reported in previous studies. Future studies should further evaluate the use of needle guides with other needle types across a variety of operators. Furthermore, additional opportunities lie in exploring workplace safety considerations and clinical applications of anesthetic delivery using a bent needle.

• Korean Journal of Community Nutrition
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• v.15 no.5
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• pp.603-613
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• 2010

Nutrition education in elementary school is confronted with the present problem, as a legal basis about obligation of nutrition education in school was clarified. Moreover, it's also important for providing evidence based scientific resources to make a study of evaluating the education effectiveness. Most studies of the nutrition education effectiveness have evaluated the changing dietary attitude and nutritional knowledge score before and after the nutrition education, and suggested the effectiveness of intervention as changing between pre- and post-treatment. Nutrition education, however, purposing long-term changes, follow-up evaluation process about the learned attitude and knowledge of nutrition education were requested. For these reasons, this study attempted to fulfilled standardized nutrition education program which use "Na Story and Food World" and "Na Story for Me", a textbook for the 1st-3rd grade and 4th-6th grade designed by KFDA, and analyzed the changes about the effectiveness of nutrition education happened over a period of time. In this study, each student was assessed their dietary attitude and nutritional knowledge by four periods, before the education, right after the education, after 3 months, and after 6 months. As a result, an average score of nutritional knowledge before the education, $70.08{\pm}17.91$, were changed significantly higher right after the education to $85.69{\pm}15.05$ (p < 0.001), but it lowered to $84{\pm}15.56$ after 3 month. After the nutrition education, students in all grades had positive dietary attitude to Na reduction (p < 0.001). However, the healthy eating attitude about Na reduction had been unable to maintain after 3 and 6 months. Therefore, the systematic reeducated program in elementary school was positively necessary to reinforce children's learning and cognitive skills to maintain healthy eating knowledge and attitude toward Na reduction.

• The Journal of Korean Obstetrics and Gynecology
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• v.33 no.1
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• pp.76-85
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• 2020

Objectives: The purpose of this review is to overview the studies of acupuncture treatment for pelvic inflammatory disease. Methods: In order to investigate the effect of acupuncture treatment for pelvic inflammatory disease, we searched relevant studies in Pubmed, Cochrane, Oasis, Korean studies Information Service System up to March 2019. After searching studies, we analyzed selected studies. Results: Five studies were included in this review. There were 1 randomized controlled studies and 4 before and after studies. The outcome measurement of pelvic inflammatory disease was divided into effective rate, physical examination, response, hematological parameter, pain. The acupuncture treatment was effective in improving pelvic inflammatory disease. Conclusions: This study shows that acupuncture treatment is one of effective treatment methods for pelvic inflammatory disease. Further large randomized placebo controlled trials will be needed.

• International conference on construction engineering and project management
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• 2007.03a
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• pp.820-829
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• 2007

This paper presents an evaluation of feasibility studies conducted to justify investments in infrastructure projects. An analysis of a previous feasibility study for a highway construction project is presented in this paper with an emphasis on the estimates and forecasts presented in that study in order to weigh expected benefits from the project against expected costs. The forecasted numbers are compared with actual data collected during the operation phase about the usage of the facility. The comparison reveals a huge difference between estimated numbers and actual numbers. Based on the lessons learned from the analyzed case study, recommendations are presented to improve feasibility studies for infrastructure projects including: peer review of feasibility studies; before-and-after feasibility studies; and defined scope and methodology for feasibility studies. Decision makers are advised to take outcomes of feasibility studies for infrastructure projects with extreme caution as some studies may provide erroneous and misleading input to their decisions regarding investment in infrastructure projects.

• Journal of Korean Academy of Nursing
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• v.25 no.1
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• pp.173-183
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• 1995

The research questions of this study were : Will the level of sexual satisfaction of women who have had a hysterectomy 4 months before be decreased compare to the level of sexsual satisfaction before the hysterectomy\ulcorner, Will the level of perceived spouse support of women who have had a hysterectomy 4 months before be decreased compare to the level before the hysterectomy\ulcorner, and What is the relationship between sexual satisfaction and spouse support\ulcorner This is a perspective descriptive correlational study. The number of subjects was 44. The subjects were limited to Korean women who had an abdominal or vaginal hysterectomy for non - malignant diseases, were married(living with their husbands), mentally healthy, and premenopause at the time of operation. The instrument was consisted of 4 items of demo-graphic characteristics, 13 items of spouse support, and 10 items of sexual satisfaction. The instrument of sexual satisfaction was a component of the Derogatis Sexual Function Inventory. Data analysis was done by paired t-test to see the differences between the pre-post scores of sexual satisfaction and spouse support. The Pearson Correlation Coefficiency was calculated to see the relationship between the scores of sexual satis-faction and spouse spport of pre-post hysterectomy. Results were summerized as follow : The mean age of the subjects was 43.5 years : 72.7% of the subjects were above middle school graduates : their mean income level was 1, 453, 000 Korean won and 86.4％ of the subjects have had bi-lateral oophrectomy. 1. The scores of sexual satisfaction of women at 4 months after hysterectomy was decreased significantly compare to the score before hysterectomy(paired t=.274, p=.009). 2. The scores of spouse support of the women at 4 months after hysterectomy was not decreased significantly compare to the score before hysterectomy(paired t=.19, p=.847). 3. The scores of sexual satisfaction and spouse support before hysterectomy was significantly related(r=.5186, p=.000). 4. The scores of sexual satisfaction and spouse support at 4 months after hysterectnmy was significantly related(r=.4110, p=.005). It carl be conlcluded that the sexual satisfaction level could be decreased 4 months after the hyster ectomy, but the spouse support level may not be decreased at 4 months after hysterectomy. Further studies have to be done to identify the factors related to the decrease of sexual satisfaction and spouse support after hysterectomy.