• Title/Summary/Keyword: Mass changes

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Health Promoting Behavior and Perceived Health Status of Nursing College Students: A Longitudinal Study (간호대학생의 건강증진행위와 건강상태 인지 변화에 대한 종단적 연구)

  • Lee, Suk Jeong;Baek, Hee Chong
    • Journal of the Korean Society of School Health
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    • v.28 no.3
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    • pp.220-228
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    • 2015
  • Purpose: The purpose of this study is to investigate changes in health promoting life style and weight control behavior among nursing students during their two years of college, and to identify the relationship between the changes and their perceived health status. Methods: The subjects were 264 female students in a three-year nursing college in Seoul, Korea. Data was analyzed by paired t-test, Wilcoxon signed-rank test, and multiple logistic regression using SPSS ver.21. Results: Of the six sub-categories regarding health promoting life style, five except spiritual growth showed improvement after two years, but their perceived health status did not change significantly. The number of students who engaged in weight control behavior increased, but there was no change in the number of students who engaged both in weight control and in diet. The group which recorded high scores in perceived mental health status showed 1.2 times greater positive changes in health promoting lifestyle (OR=1.202, p=.023). Conclusion: The results showed although health promoting behavior changed positively throughout the nursing curriculum, physical activities were still low and few students used constructive methods to control their weight. Therefore, it is recommended that nursing colleges build specific programs into their curriculum to correct students' undesirable health promoting behavior.

Schwannoma on the nasal dorsum and tip with sensory changes

  • Yoon, Sung Ho;Kim, Cha Soo;Oh, Jae Wook;Lee, Keun Cheol
    • Archives of Craniofacial Surgery
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    • v.21 no.6
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    • pp.380-383
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    • 2020
  • Schwannomas, which originate from Schwann cells in the peripheral nervous system, are slowg-rowing and uncommon benign tumors. Most schwannomas (90%) occur in isolation, and multiple occurrences are a characteristic feature of neurofibromas. Schwannomas of the nose and nasal tip are particularly unusual. Although a few cases of schwannomas of the sinusoidal tract and nasal septum have been reported, schwannomas arising from the nasal dorsum area and tip are extremely rare. Sensory abnormalities are also a very rare symptom. We excised a schwannoma on the nasal dorsum through direct incision and a schwannoma on the nasal tip through open rhinoplasty. No postoperative complications involving recurrence, hematoma, or infection occurred. The possibility of neurological changes should be considered in cases of an abnormality in the peripheral nervous system. Schwannoma must be kept in mind as a possible cause of neurological changes localized to a specific dermatome, and should always be considered in the differential diagnosis of a mass on the nose.

Features of the Impact of Social and Digital Changes on the System of Government Regulation of Banking Activity

  • Zalutska, Khrystyna;Pasichnyk, Vаsyl;Smolinska, Natalia;Grybyk, Igor;Antonova, Liudmyla
    • International Journal of Computer Science & Network Security
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    • v.22 no.4
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    • pp.217-222
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    • 2022
  • The main purpose of the article is to study the features of the impact of social and digital changes on the system of government regulation of banking acitivity. The digital economy sets the vector along which socio-economic systems of micro-, meso-, macro-levels will develop in the long term, which necessitates research and a comprehensive analysis of digital transformation processes. Once a priority for individual innovative companies, today digital transformation has become a mass phenomenon, and the corresponding projects are vital for the success of not only individual companies, but also regions and countries. At the same time, this transformation itself is closely connected with the trend of servicing socio-economic systems and is largely implemented on its basis. Moreover, this relationship and the mechanism for its implementation remain insufficiently studied, which necessitates the development of tools for its identification, assessment and management. As a result of the analysis, the key aspects of the impact of social and digital changes on the system of state regulation of banking activities were identified.

Changes in Biochemical Components of Several Tissues in Sinonovacula constricta, in Relation to Gonad Developmental Phases (가리맛조개, Sinonovacula constricta의 생식소 발달단계에 따른 일부 조직의 생화학적 성분 변화)

  • Han, Ji-Soo;Kim, Jong-Bae;Lee, Chang-Hoon;Chung, Ee-Yung
    • The Korean Journal of Malacology
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    • v.21 no.2 s.34
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    • pp.121-132
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    • 2005
  • We investigated the reproductive cycle with gonad developmental phases of Sinonovacula constricta by histological observations, and seasonal changes in biochemical component of the adductor muscle, visceral mass, foot muscle and mantle were studied by biochemical analysis, from January to December, 2004. The reproductive cycle of this species can be classifed into five successive stages: early active stage (March to May), late active stage (May to July), ripe stage (July to September), partially spawned stage (August to October) and spentfinactive stage (October to March). Total protein content was the highest in the following order: adductor muscle, visceral mass, foot muscle, and mantle. Except for mantle, it was generally higher during the ripe and spawning stages, while lower during the spent/inactive stage. There were positive correlations in total protein contents among adductor muscle, foot muscle, and visceral mass. However, the correlations were not statistically significant. Total lipid content was the highest in the visceral mass; it was more than 5 or 6-fold higher than those in the adductor muscle, foot muscle, or mantle. The monthly change was also most dynamic in the visceral mass. It first Increased during the early active stage (March to May), decreased during late active stage (May to July), and then increased again rapidly during the spawning stage (September). There were a strong negative correlation in total lipid contents between foot muscle and adductor muscle (r = -0.634, p = 0.027), and a strong positive correlation between adductor muscle and mantle (r = 0.665, p = 0.018). Glycogen contents showed more or less similar pattern to total lipid contents in the adductor muscle, foot muscle, and visceral mass. It was higher during the early active and spawning stages, while lower during the late active and spent/inactive stages. There was no statistically significant correlation in glycogen contents among different tissues. Especially, total lipid content showed a negative correlationship between the foot muscle, adductor muscle, visceral mass and mantle. Therefore, these results indicate that the nutrient content of the foot muscle, adductor muscle, viseral mass and mantle changed in response to gonadal energy needs.

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Comparative Analyses of Mass Marketing and Target Marketing Based on Price Elasticity and Production Cost (가격탄력성과 생산비용에 기초한 대량 마케팅과 표적시장 마케팅의 비교 분석)

  • Won, Jee Sung
    • Journal of Distribution Science
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    • v.11 no.4
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    • pp.61-72
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    • 2013
  • Purpose - It is widely accepted that the process of developing marketing strategy is composed of three steps: market segmentation, target market selection and positioning. However, mass marketing strategy based on cost reduction through economies of scale and standardized products, can be also an effective strategic option. Many marketing scholars including Theodore Levitt emphasize the importance of applying the mass production concept to various industries including service industries. Especially, in times of economic downturn, the capability of providing consumers with low-priced, value products can be an important source of competitive advantage, as well as the ability of providing high-priced premium products. Marketers should decide whether they will implement mass marketing strategy or target marketing strategy. The present study theoretically shows that firms should understand the target customers' price elasticity as well as the firm's cost structure in order to make such a strategic decision. Research design, data, and methodology - Instead of implementing an empirical study, this study provides a theoretical(mathematical) investigation on the effect of consumers' price elasticity on a firm's optimal price level, profit, sales volume, revenue, and cost. The results are mostly deduced from derivative calculations and several graphs are utilized to represent the results on the relationships between the variables under study. Results - The analytical results suggest that it is more profitable for a firm to adopt the segment/target marketing strategy (more specifically the differentiation strategy) when the degree of consumers' heterogeneity is high and the proportion of the fixed cost in the total cost is low. On the other hand, if the degree of consumers' heterogeneity is low and the fixed cost is high, it is better to adopt the mass marketing strategy or the cost leadership strategy. The strategy of concentrating on a single target market will be effective when consumers' needs are highly heterogeneous but the fixed cost is high. Any of the three types of generic strategies proposed my Porter(1980, 1985) can be applied when both the consumers' heterogeneity and the fixed cost are low. This study also proposes the contribution-margin-based method for developing the optimal pricing strategy. Conclusions - One of the primary roles of marketers is to find a proper compromise between the two conflicting goals of maximizing customer satisfaction and minimizing cost. In order to do so, he or she should understand the characteristics of the target customers as well as the cost structure of the firm. In addition to the theoretical analyses, this study discusses several business cases and explains how superior companies find the optimal compromise position between these two goals and dominate the market. One of the radical changes recently taking place in business arena is the reduction of production and distribution costs of both physical goods and information due to the advancement and the wide diffusion of information technology. The cost reduction combined with lowered priced elasticity incurred by customized products and services, will enable many firms to adopt the mass customization strategy.

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Development of Rant Resources for the Control of Environmental Pollution - $CO_2$ Absorption and Growth Response to $CO_2$ in Kenaf(Hibiscus cannabinus L.) - (환경정화 자원식물 개발 - 양마의 $CO_2$ 흡수 및 생육반응 -)

  • Yoon, Seong-Tak
    • Korean Journal of Organic Agriculture
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    • v.11 no.4
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    • pp.103-115
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    • 2003
  • In order to investigate the possibility for use to control environmental pollution, Kenaf(Hibiscus cannabinus L.) was used to obtain information of their growth and $CO_2$ response under different temperatures and $CO_2$ concentration. The highest percentage of germination and aboveground dry mass of Kenaf were found at 30$^{\circ}C$ and 35$^{\circ}C$ by 89.0% and 3.2g, respectively under different temperatures. The amount of $CO_2$ absorption and aboveground dry mass production of Kenaf were higher than those of maize during the whole growing period and the last sampling of aboveground dry mass of Kenaf and maize were 252.9g and 200.8g, respectively. The highest plant height was found at 400ppm by 131.0cm and the next was in the order of 600ppm by 1293cm, and 800ppm by 108.8cm. Leaf area was higher in the order of 400ppm > 600ppm > 800ppm, whereas leaf dry mass was in the order of 800ppm > 600ppm > 400ppm under different $CO_2$ concentration, showing that leaf became thicker as $CO_2$ concentration was increased. Days from seeding to flowering became shorter by 13 days in 35/25$^{\circ}C$ compared with 25/15$^{\circ}C$ between two temperature regimes and they also became shorter as $CO_2$ concentration was increased. Aboveground dry mass was higher in 35/25$^{\circ}C$ than that of 25/15$^{\circ}C$ between two temperature regimes. while it was increased in the order of 800ppm > 600ppm > 400ppm as CO2 concentration was increased. Temporal changes of leaf dry mass during growth period showed no difference between $CO_2$ concentration in 25/15$^{\circ}C$ , but the highest of it was found at 800ppm in 35/25$^{\circ}C$. The highest temporaI increase of root dry mass was found at 800ppm in 25/15$^{\circ}C$, but 35/25$^{\circ}C$ showed no difference between different $CO_2$ concentration.

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Effect and Safety of Calorie Restriction and Complex Herbal Medicine Short-term Treatment ('Oil-rescue' Program) for Weight Reduction of Obesity or Overweight Patients: A Practice Based Research (과체중 및 비만 환자의 체중감량을 위한 식사량 조절 및 복합 한약 단기 치료(5일 레스큐 프로그램)의 효과와 안전성: 진료기반 연구)

  • Kwon, Byeongjo;Lee, Eunji;Chang, Jeonghyun;Song, Changeun;Lee, Hyeryun;Kim, Jungeun;Yun, Younghee;Choi, Ye-yong;Yoon, Sang-Hoon;Leem, Jungtae
    • Journal of Korean Medicine for Obesity Research
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    • v.20 no.2
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    • pp.122-130
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    • 2020
  • Objectives: This study is a practice based research conducted to investigate the effectiveness and safety of a 5-day short-term diet program ('Oil-rescue' program) designed to reduce the adverse events and initial dropout rate in obesity treatment. Methods: We retrospectively analyzed 4 Korean medicine clinic patient data who completed 'Oil-rescue' program which is consisting of Gambi-hwan, Bium-hwan, Butgiban-hwan and Jayoon Kyungokgo. The weight change before and after participating 'Oil-rescue' program was primary outcome of our study. Changes in body mass index, body fat mass, skeletal muscle mass, body water content, lean body mass, protein, and minerals were also measured. Results: A total of 35 patients who satisfied the eligible criteria were finally included. The body weight decreased from 69.45±11.86 kg to 67.43±11.58 kg, a total of 2.02±1.03 kg (P<0.001). Body fat mass decreased from 25.77±7.45 kg to 24.98±7.26 kg, a total of 0.78±1.21 kg (P<0.001). Body mass index decreased from 26.39±3.64 kg/㎡ to 25.64±3.49 kg/㎡, a total of 0.75±0.41 kg/㎡. (P<0.001). A total of 15 patients had side effects such as diarrhea, abdominal pain, and insomnia, but all were mild. 16 out of 35 people switched to long-term obesity treatment programs. Conclusions: Through this retrospective practice based research, it was found that the 'Oil-rescue' program effectively reduced body weight, body fat, and body mass index, and the other obesity related parameters. It was a relatively safe and effective short-term obesity treatment program.

Changes in Smokers' Perception about smoking before and after Participation in a Hospitalized Smoking Cessation Program (금연학교 입원프로그램 전과 후의 흡연자의 흡연에 대한 인식변화)

  • Chang, Sung Ok;Shin, Sung Rae;Kim, Hung Kyu;Kim, Sang Suk;Ju, Eun Ae
    • Journal of Korean Academy of Nursing
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    • v.35 no.6
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    • pp.1163-1173
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    • 2005
  • Purpose: This study was done to analyze the changes in smokers' subjectivity about smoking before and after participation in a 5-day hospitalized smoking cessation program. Design: Q-methodology, which provides a scientific method on subjectivity, was applied. Findings: Nine types of subjectivity changes about smoking were identified; Type I, Nicotine $craving{\to}Confident$ of self control for smoking; Type II, Nicotine $craving{\to}Cognition$ of the link between habituation and smoking, Type III, Nicotine craving ~ Nicotine craving, Type IV, smoking as a social $behavior{\to}Cognition$ of the link between habituation and smoking, Type V, smoking as a social $behavior{\to}Motive$ to turn away from being addicted to smoking to being healthy, Type VI, Habitual $smoking{\to}Confident$ of self control for smoking, Type VII, Habitual $smoking{\to}Cognition$ of the link between habituation and smoking, Type VIII, Habitual $smoking{\to}Motive$ to turn away from being addicted to smoking to being healthy and Type IX, Denial of the negative effects of $smoking{\to}Confident$ of self control for smoking Conclusion: The types of changes in smokers' subjectivity before and after the smoking cessation program in this study suggest a better tailored intervention for individual smokers. The types of changes on smokers' subjectivity provide insight about which factors of the interventions for smoking cessation are especially valued for a particular group of smokers.

Dietary changes in Vietnamese marriage immigrant women: The KoGES follow-up study

  • Hwang, Ji-Yun;Lee, Hakim;Ko, Ahra;Han, Chan-Jung;Chung, Hye Won;Chang, Namsoo
    • Nutrition Research and Practice
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    • v.8 no.3
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    • pp.319-326
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    • 2014
  • BACKGROUND/OBJECTIVES: The immigrant population has grown considerably in South Korea since the early 1990s due to international marriages. Dietary changes in immigrants are an important issue, because they are related to health and disease patterns. This study was conducted to compare changes in dietary intake between baseline and follow-up periods. SUBJECTS/METHODS: Two hundreds thirty three Vietnamese female married immigrants. Baseline data were collected during 2006-2009, and the follow-up data were collected during 2008 and 2010. Food consumption was assessed using a 1-day 24-hour recall. RESULTS: The amount of the total food consumed (P < 0.001) including that of cereals (P = 0.004), vegetables (P = 0.003), and fruits (P = 0.002) decreased at follow-up compared to that at baseline, whereas consumption of milk and dairy products increased (P = 0.004). Accordingly, the overall energy and nutrient intake decreased at follow-up, including carbohydrates (P = 0.012), protein (P = 0.021), fiber (P = 0.008), iron (P = 0.009), zinc (P = 0.006), and folate (P = 0.002). Among various anthropometric and biochemical variables, mean skeletal muscle mass decreased (P = 0.012), plasma high density lipoprotein-cholesterol increased, (P = 0.020) and high sensitivity C-reactive protein decreased at follow-up (P < 0.001). CONCLUSIONS: A long-term follow-up study is needed to investigate the association between changes in food and nutrient intake and anthropometric and biochemical variables in these Vietnamese female marriage immigrants.

Clinical significance of serum alanine aminotransferase and lifestyle intervention in children with nonalcoholic fatty liver disease

  • Kwon, Kyoung Ah;Chun, Peter;Park, Jae Hong
    • Clinical and Experimental Pediatrics
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    • v.59 no.9
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    • pp.362-367
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    • 2016
  • Purpose: This study aimed to investigate the clinical significance of serum alanine aminotransferase (ALT) levels in children with nonalcoholic fatty liver disease (NAFLD) and the effect of lifestyle intervention on NAFLD. Methods: The clinical data of 86 children diagnosed with NAFLD were reviewed retrospectively. Forty-six patients belonged to the elevated ALT group and 40 to the normal ALT group. The clinical parameters of patients with NAFLD were also compared based on the status of ALT levels after lifestyle intervention. Results: Patients with elevated ALT had significantly higher body mass index (BMI) scores than those with normal ALT (P<0.05). Of all the patients with elevated ALT, 89% exhibited moderate or severe degree of fatty change in the liver on ultrasonographic examination, whereas most patients with normal ALT exhibited mild or moderate degree changes. Liver biopsy was performed in 15 children with elevated ALT and all showed mild histological changes. Of all patients with elevated ALT, 49% achieved normal ALT levels after lifestyle intervention. Those with more severe histological changes tended to have continuously increasing ALT levels. There was no correlation between the normalization of posttreatment ALT level and BMI, as well as ultrasonographic findings at diagnosis. Conclusion: ALT elevation in NAFLD is highly associated with higher BMI scores and more severe degree of fatty changes on ultrasonographic examination. Lifestyle intervention can significantly improve ALT in children with NAFLD. The degree of histologic changes appears to be a predictor of the treatment response to NAFLD.