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The Correlation between Uneven Ripening and Respiration Rate of Tomato at Breaker Stages (Breaker 단계 토마토의 착색불량과 호흡률간 상관관계)

  • Kang, Ho-Min;Kim, Young-Shik
    • Journal of Bio-Environment Control
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    • v.19 no.2
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    • pp.93-96
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    • 2010
  • Breaker stage tomato fruits that were stored at low temperatures show typical chilling symptoms such as uneven ripening and a high respiration. Experiments were performed to assess and compare these chilling injury symptoms of breaker stage tomato fruits, and to gather basic data that can be used to decide whether horticultural crops receive chilling injuries. Tomato fruits that had been sorted in the breaker stage were stored at $2^{\circ}C$ for 0, 3, 6, and 9 days, and then their respiration rates were measured at 3, 6, 9, 12, 24, 36, and 48 h after moving them to room temperature. This treatment was repeated twice on the same procedures, except the storage periods, which were changed to 0, 1, 2, 3, and 10 days. The respiration rate was increased in a 1 day storage treatment, and the increasing rate rose higher with extended storage periods. The $a^*$ value, which represents the surface color of tomato fruits, was measured 10 days after moving to them into room temperature. Those with an increased $a^*$ value rate got dull and showed uneven coloring after 2 days' storage treatment. These two factors, the respiration rate and $a^*$ value of the surface, showed a high correlation (r = 0.9716, p < 0.001). Therefore, the chilling injury of breaker stage tomato fruits can be diagnosed by measuring the respiration rate after moving them into room temperature, and the degree of chilling injury can also be assessed in terms of the respiration increase rate.

Effect of parboiling on the physicochemical properties of immature barley kernels (Parboiling처리가 미숙보리곡립의 이화학적 특성에 미치는 영향)

  • Seog, Ho-Moon;Kim, Jong-Sang;Hong, Hee-Do;Kim, Sung-Soo;Kim, Kyung-Tack
    • Applied Biological Chemistry
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    • v.36 no.6
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    • pp.456-462
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    • 1993
  • Parboiling, a popular technology used to protect rice from nutrient loss during milling and to increase the shelf-life of rice, was applied to barley kernels, and its effect on nutrient retention and chemical composition was evaluated. Before 36 days after ear emergence, barley kernels showed water content higher than 40%, and parboiling without presoaking resulted in at least 43% of gelatinization degree. This implies that soaking, an important step of parboiling, is dispensable for barley at milky stage. Parboiling did make little change in the appearance of the kernel after 31 days from ear emergence. Nonreducing sugars such as sucrose and raffinose remained unchanged while reducing sugars of barley was decreased by parboiling, with exception that maltose increased. Pearling led to decrease in crude protein, fat, fiber and minerals of barley sampled and parboiled on 36th day from ear emergence. Free sugars in the parboiled barley also was reduced with increasing pearling rate. Vitamin $B_1$ content of the parboiled barley was $260\;{\mu}g\;per\;100\;g$ as dry basis at 50% pearling rate, compared to $36\;{\mu}g$ for raw barley at same pearling rate. Thus parboiling appeared to be very effective in the retention of vitamin $B_1$ during pearling.

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Vehicle HUD's cognitive emotional evaluation - Focused on color visibility of driving information (차량용 HUD의 인지적 감성 평가 -주행정보의 색채 시인성을 중심으로-)

  • Choi, Won-Jung;Lee, Won-Jung;Lee, Seol-Hee;Park, YungKyung
    • Science of Emotion and Sensibility
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    • v.16 no.2
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    • pp.195-206
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    • 2013
  • The main causes of traffic accidents while driving a car is of the driver's visual distraction. In this study, the color sensitivity of the information projected on the windshield were evaluated for HUD (Head Up Display) system which helps the driver's eyes on the road while driving. The driving Information were projected $9^{\circ}$ downward from front sight $0^{\circ}$ under lab's fluorescent lights, LED floorlights and the TV had having 25 [lux] illumination when driving at night environment and 100,000 [lux] of daylight environment. Munsell color hue of the basic five colors (R, Y, G, B, P) and the color of traffic lights YR, W were the color of the seven characters, each character were outlined by White, Gray except for W. Total of 19 experimental stimuli was shown in the environment of day and night driving for asking visibility information of color, fatigue, preferences, and evaluate the degree of interference. The results came out that the bright Y and G color is visibility significantly for daylight. Second, with the outline of the text, the color of the outline works as a background for luminance contrast effects and affects visibility. Third, without the outline, the glass in front of the vehicle acts as the background and the luminance contrast of characters achieve greater brightness and visibility. The luminance contrast between the stimuli and background should be considered for increasing color visibility for driving information which is an important factor for HUD commercialization.

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Effect of Terazosin on Posttraumatic Nightmares : A Pilot Study (외상 후 스트레스장애 환자의 악몽치료에서 Terazosin의 효과 : 예비 연구)

  • Chung, Moon-Yong;Jung, Ji-Young;Lee, Tae-Young;Kang, Suk-Hoon;Kim, Tae-Yong;Choi, Jin-Hee;Chung, Ha- Kyoung
    • Anxiety and mood
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    • v.2 no.1
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    • pp.39-44
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    • 2006
  • Objective : Chronic posttraumatic stress disorder (PTSD) is defined by the coexistence of symptoms (reexperiencing, avoidance and hyperarousal), persisting for more than months or years that causes significant impairment in social occupational functioning. This study was conducted to evaluate the effects of terazosin on posttraumatic nightmares which is one of chronic PTSD symptoms. Methods : Twenty patients with chronic PTSD and severe trauma-related nightmares were treated with terazosin (3-7 mg/day) for 8 weeks. Recurrent distressing dreams item of the Clinician administered PTSD Scale (CAPS), Total CAPS score, Clinical Global Impressions-Severity Scale (CGI-S) and Clinical Global Impressions-Change Scale (CGI-C) were performed at baseline, 4-week and 8-week. Mississippi Scale for Combat-Related PTSD and Combat Exposure Scale (CES) were used to evaluate PTSD symptom pattern and degree of exposure. Results : Significant decrease in recurrent distressing dreams item, reexperiencing, avoidance and hyperarousal symptom score and total CAPS score were at 4-week and 8-week treatment compared to baseline (recurrent distressing dreams item : $2.70{\pm}1.88$ and $1.25{\pm}1.49$ ; reexperiencing, avoidance and hyperarousal symptom score : $2.30{\pm}2.49$, $1.20{\pm}1.05$, $3.10{\pm}1.68$ and $4.00{\pm}3.59$, $1.55{\pm}1.50$, $5.60{\pm}3.23$ ; total CAPS score : $8.20{\pm}6.26$ and $5.40{\pm}5.89$). There were significant correlation between dosage of terazosin and improvement of PTSD symptoms. Adverse effects such as fatigue and orthostatic hypotension were showed, which were mild and self-limited. Conclusion : These results suggest that terazosin may improve severe trauma-related nightmares and overall PTSD symptoms. Randomized controlled study with more subjects would be necessary in the future.

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General Characteristics and Satisfaction of Out-patients of University Hospitals in Seoul, Korea (대학병원 외래환자의 일반적 특성과 만족도 - 서울시내 5개 대학병원을 대상으로 -)

  • Chang, Sung-Goo;Ha, Hun-Young;Shin, Young-Jun;Lee, Jong-Gil
    • Quality Improvement in Health Care
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    • v.2 no.2
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    • pp.130-145
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    • 1996
  • Purpose : the management of University Hospital is being challenged in maintenance of reasonable level of income and high ranked reputation by domestic competition with each other and emergence of enterprised owned hospitals. It is imperative that University Hospitals have to make management for patient satisfaction. Furthermore, increased patient's requirement for qualified hospital services (quality assurance) and low-estimated service fee also repress the hospital management condition as well as medical markets open following with Urguay Connection. Due to these unforable conditions surrounding hospital management, -University Hospitals are being pressed to seek improved management strategies. To develope the strategies, we need to have basic understanding about the problems on hospital management and detail information for various patient's requirement. Methods: For this study, we have analysed out-patients from five different University Hospitals located in Seoul, Korea. To obtain the data, we have carried out personal interviews with patients who patients who visit the Out-Patient Clinics of five different University Hospitals using a previously prepared questionnaire. Result: Around 65.7 percent of the visits to University Hospitals were indwelt in the vicinity of 1 hour and motuvation of visiting University Hospital was expending high wuality medical csre in 49.3 percent. The 79.3 percent of the patients have experienced inconvenience during medical care in University Hospital. The most inconvenient condition was waiting for doctors. The 57.2 percent of total patient have experienced rudness. The most rudness condition was registration and receipt desk in 44.4 percent. Patient expect that doctors working in University Hospitals as professors have high and updated medical knowledge(50.4%) and University Hospitals have a high quality medical care system(79.4%). The patient satisfaction was relatively low in 61.1 percent of total patient and revealed high frequency of again visit University Hospital in satisfaction group. Comparison of interhospital analytical study showed quite difference on various problems. Conclusion: Almost patients who visit to Out-Patient Clinic of University Hospital havevisiting motivation to high quality medical care. University Hospitals have several different unsatisfactorial factors and revealed different degree of patient satisfaction. In a future day, University Hospitals have to make use of another University Hospital's merits for approach of Benchmarking and also should be studied decision factors of patient satisfaction and interhospital difference of them.

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The Commercialization of Blockbuster Exhibitions in Museums (미술관 블록버스터 전시의 상업주의적 경향 연구)

  • Hwang, Kyung-Ja
    • The Journal of Art Theory & Practice
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    • no.2
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    • pp.191-213
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    • 2004
  • The trend of "Blockbuster Exhibitions" over the past decade has led to the unfortunate reality that museums, losing sight of their role as an Academic organization, are becoming increasingly influenced by the corporate world. In my dissertation entitled "The Commercialization of Blockbuster Exhibitions in Museums," I explore the modern tendency toward Blockbuster exhibitions in art museums and the negative impact of those exhibitions on the art world. Museums of the modern day have expanded their territory from the traditional venue of public education to the hybrid cultural space. This mission, evident in the museum's attempt to satisfy audiences with the offering of diverse activities, has changed the concept of the museum, giving priority to the desire for financial gain. From the viewpoint of this new museology, the museum considers Blockbuster exhibitions as the safest method to increase ticket sales. As a program that openly reveals the commercialism of the museum, I explore the Blockbuster show and its strategies as a means of exposing the influence of the corporate world on art. A key component to the Blockbuster exhibition is the "hype" that is created to attract an audience. This devotion to increased publicity distracts from what should be the goal of public education, as the primary focus leans towards the desire for a large number of visitors. Consequently, this unavoidably standardized exhibition is presented to the public in a manner that deprives the audience of a unique experience. With large crowds and increased ticket prices, it is difficult to form a genuine appreciation of the artwork. In addition to the profit gained by increased ticket prices and the commercial sales of "souvenirs" from the museum gift shop, Blockbuster shows are used as a means to attract the attention of corporate sponsors. As explained in my dissertation, the importance that the museum places on corporate sponsorship as a capital resource is evident, however the degree to which the museum allows itself to he influenced by the desire for capital gain poses a threat to its function as an academic organization. Circumstances in American museum history, in particular, have influenced the transition from academic resource to corporation within museology. In keeping with the nation's tendency towards capitalism, art museums in the United States were initially established and developed by individual capitalists who applied principals of corporate operation to museum management. As a result, in modern days, We witness the influence of enterprise on museum programs, while corporate management may be able to guarantee immediate fiscal benefits, however, it is unable insure the future of the museum. In Slim, my dissertation discusses the mechanism of the commercialized "Blockbuster Exhibition" and the impact that it has on the future of the museum as an industry. This research provides an opportunity to reconsider the role of the museum as an academic institution, particularly in regard to the need to decrease the capitalization of exhibitions and refocus their influence on the art world as an educational resource.

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A Study of Soft Contact Lens Wearer on Women College Students (여대생의 소프트 콘택트렌즈 착용자에 대한 연구)

  • Kim, Douk-Hoon;Yoo, Jae-Tae
    • Journal of Korean Ophthalmic Optics Society
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    • v.5 no.1
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    • pp.187-192
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    • 2000
  • The objective of this study was to investigate the problems of soft contact lens wear on the women college students. The results were as follows 1. Almost the purchase of soft contact lens was the optical shop. 2. Almost the motive of soft contact lens use was the discomfort of glasses wear. 3. Almost the good feeling of glasses wear was moderate degree. 4. On the main reason of exchange of contact lens, teens was contact lens damage and tweenths was lifespan of contact lens. 5. On the contact lens wearing time at one day, teens was over 10 hours and tweenths was from 7 hours to 10 hours. 6. On the contact care and treatment, teens was a lens washing and storage and tweenths was a lens washing and disinfectant. 7. On the main difficult of contact lens handling, teens was a lens separation in eye and disinfection of lens case and tweenths was a solution treatment and insertion of contact lens in the eye. 8. On the contact lens insertion in the eye, the most difficult item was hanging of the eyelid and fear thinking in teens and fear thinking in tweenths. 9. On the difficult in separate of contact lens wear, a most subjects were eye opening. 10. On the most inconvenient state in contact lens wearing, the subjects were eye redness, foreign body and eye pain. 11. On the advantage of contact lens wearing, teens was decrease in glasses side effects and twenties was a beauty.

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Bleaching Observation of Cosmetic Color Lenses According to Multipurpose Contact Lens Solutions (다목적 콘택트렌즈 용액에 대한 미용 칼라렌즈의 탈색 관찰)

  • Kim, Hyojin
    • Journal of Korean Ophthalmic Optics Society
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    • v.19 no.3
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    • pp.295-303
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    • 2014
  • Purpose: This study aims to observe bleaching resulted from multipurpose contact lens solutions used to manage lenses with the subjects of colored contact lenses being distributed in Korea. Methods: The lenses have been worn for six months, and their refraction is 0.00D. Three types of colored contact lenses of which margin has been colored with a different manufacturing method have been adopted (type 1: pigment application method, type 2: chemical bonding process, type 3: sandwich method), and multipurpose solutions used were two types containing different components. Each of the colored contact lenses was stored in the multipurpose solutions for 20 days and went through vortexing for 15 seconds per day. Their fluorescence absorbance, surface roughness, brightness index, and color coordinate index were measured before and after the vortexing to see the degree of bleaching. Results: In the two types of multipurpose solutions, every type of the color contact lenses showed no statistically significant difference in their fluorescence absorbance value before and after the vortexing. Regarding surface image, the front surface of the lenses was smooth in every type, and about the back surface, type 3 indicated less protrusion than type 1 and 2. About the difference of color on the lens surface before and after the vortexing, type 3 showed significantly less difference than type 1 and 2; however, all fell into the permissible error. Conclusions: About the bleaching of colored contact lenses resulted from multipurpose solutions for soft contact lenses, there was no difference observed in terms of fluorescence absorbance and color. According to the methods of manufacturing dyes, however, there was difference in the protrusion of the posterior surface image.

Association between Axial Length and Anthropometric Value in Korean Children (한국 어린이의 안축장과 신체 계측치와의 관련성)

  • Kim, Hyojin;Lyu, Jungmook
    • Journal of Korean Ophthalmic Optics Society
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    • v.19 no.3
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    • pp.397-402
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    • 2014
  • Purpose: To investigate the relationship between axial length (AL) and anthropometric parameters in Korean children. Methods: This study included 40 urban school children aged 11-12 years (mean age, $11.95{\pm}0.22$ years; 45.0% girls) residing in Seoul, South Korea. AL (using partial coherence laser interferometry), corneal radius, refractive error, height (m), and weight (kg) were measured. Body mass index (BMI $[kg/m^2]=weight/[height]^2$) and degree of obesity (DO[%]=[actual weight standard weight]/standard weight) were calculated. Furthermore, the number of hours spent reading, watching television, and using a computer every day was determined using a detailed questionnaire. Results: The students had a mean spherical equivalent refraction of $1.06{\pm}0.84$ D. Weight (r=0.427, p=0.006), BMI (r=0.508, p=0.001), and DO (r=0.371, p=0.018) showed a significant positive correlation with AL. Furthermore, longer AL was significantly associated with heavier weight (p=0.041), and higher BMI (p=0.015), and higher DO quartiles (p=0.042). After adjust for age, sex, and near-work activities, multivariate linear regression models showed that weight, BMI, and DO were still significantly associated with AL. Among the near-work activities, daily reading time was significantly associated with AL. Conclusions: AL was positively related to weight as well as daily reading time in Korean urban school children.

A Study on the Fat and Fatty Acid Intake of College Women Evaluated through Internet Nutritional Assessment System (인터넷 상의 영양평가프로그램을 이용한 일부 여대생의 지방 및 지방산 섭취에 관한 연구)

  • Yu, Choon-Hie
    • Journal of Nutrition and Health
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    • v.40 no.1
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    • pp.78-88
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    • 2007
  • The purpose of this study was to investigate dietary fat and individual fatty acids intake pattern of 174 college women living in Seoul and Gyong-gi province through internet nutritional assessment system. Each of the subjects was required to input their own food intake for three days, which included two days during the week and one day of the weekend, on the web program directly and all of the data collected were used for statistical analysis. The mean daily caloric intake of the subjects was 1,500.9 kcal which was at 71.5% of Estimated Energy Requirement (EER). Dietary fat contributed 27.6% of the total caloric intake which was slightly higher than the recommended limit of 25%. Daily cholesterol intake was 310.0 mg, which was also high to some degree. Mean daily N6 and N3 fatty acid intake was 6.1 g and 0.9 g, respectively, and calory % calculated from each were 3.63% and 0.53%. This result showed the intake of N3 fatty acid fell in Acceptable Macronutrient Distribution Ranges (AMR) $0.5\sim1.0%$ but that of N6 fatty acid was somewhat lower than the AMDR $4\sim8%$. N6/N3 ratio 8.5/l, however, was within the desirable range $4\sim10/1$. Considering overall dietary fatty acids intake, oleic acid was the most abundant, followed by linoleic and palmitic acid. And among polyunsaturated fatty acids intake, linoleic acid was exclusively high, accounting for 97.4% of total N6 fatty acid intake. On the contrary, three fatty acids, linolenic (67.3%), DHA (21.1%) and EPA (10.0%), together supplied 98.4% of total N3 fatty acid intake. Mean P/M/S was 0.9/l.1/1.0. The subjects' intake of fat, many fatty acids and cholesterol came from diverse food groups including meats, fats and oils, milk and milk products, eggs, fish, and soybean products. Nevertheless, the subjects tended to show unfavorable fat and fatty acids intake pattern in terms of quantity and quality. Based on these results, it is important to monitor dietary fat intake pattern of the general population continuously and an internet program such as the one used for this study would be valuable, especially for assessing dietary patterns in the younger generation.