• Korean Journal of Fisheries and Aquatic Sciences
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• v.5 no.2
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• pp.50-56
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• 1972

This study has been carried out to observe the driving and the intercepting effects of air screen on some sea-water fishes ; Chrysophrys major, Mylio macrocephalus, Fugu pardalis. 1. By perforating fine holes on the compressed air pipes, air screen was formed in the water, and this screen was set at $45^{\circ}$, and $90^{\circ}$ against the fish passage to observe the reactions on the part of the fish. 2. Changes were given to the location of the air screen in the water to observe how the air screen drived the fish to its direction. 3. The effective distance between holes on the air piprs was determined by a series of experiments of setting up two air screens of various types in hole distance, by moving a screen to-ward the other, and of observing the distance between two screens when fish eseape through the space. The results of the above experiments observed as follows were : 1. The passage of fish was effectively intercepted by setting up the air screens at 45 degrees against the fish passage and it was also intercepted when the screen was set at 90 degrees against the passage. 2. Fish could be driven by moving the air screen toward the fish. 3. The air screen formed from the pipe above than 0.3mm in diameter was effective, but less than 0.2mm was not sufficiently effective. 4. The strength of the air pressure in the pipe should be higher than $0.087kg/cm^2$. 5. The fish holding ability to obtain effective air screen was ranged as following when the air pressure was $0.160kg/cm^2$. and the hole diameter was 0.3mm on the 12.6mm pipe, depending upon the intervals of the holes on the pipe: The shortest distance which could hold fish between two screens was 59.4cm when the holes were perforated at every 40cm; 33.5cm when at every 30cm; 28.75cm when at every 10cm: and 27.25cm when at every 5cm. Thus, no significant change was at served when the holes were perforated more densely than 30cm intervals. Therefor the hole intervals should be 30cm in designing fishing gear employing air screen.

• Clinical and Experimental Pediatrics
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• v.54 no.5
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• pp.207-211
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• 2011

Purpose: This study was conducted to investigate the immune responses of children with moderate and severe novel influenza A virus (H1N1) pneumonia, and to compare their clinical and immunological findings with those of control subjects. Methods: Thirty-two admitted patients with H1N1 pneumonia were enrolled in the study. The clinical profiles, humoral and cell-mediated immune responses of the 16 H1N1 pneumonia patients who were admitted to the pediatric intensive care unit (severe pneumonia group), 16 H1N1 pneumonia patients admitted to the pediatric general ward (moderate pneumonia group) and 13 control subjects (control group) were measured. Results: Total lymphocyte counts were significantly lower in patients with H1N1 pneumonia than in the control group (P=0.02). The number of CD4+ T lymphocytes was significantly lower in the severe pneumonia group ($411.5{\pm}253.5/{\mu}L$) than in the moderate pneumonia ($644.9{\pm}291.1/{\mu}L$, P=0.04) and control ($902.5{\pm}461.2/{\mu}L$, P=0.01) groups. However, the number of CD8+ T lymphocytes was significantly higher in the severe pneumonia group ($684.2{\pm}420.8/{\mu}L$) than in the moderate pneumonia ($319.7{\pm}176.6/{\mu}L$, P=0.02) and control ($407.2{\pm}309.3/{\mu}L$, P=0.03) groups. The CD4+/CD8+ T lymphocytes ratio was significantly lower in the severe pneumonia group ($0.86{\pm}0.24$) than in the moderate pneumonia ($1.57{\pm}0.41$, P=0.01) and control ($1.61{\pm}0.49$, P=0.01) groups. The serum levels of immunoglobulin G, immunoglobulin M and immunoglobulin E were significantly higher in the severe pneumonia group than in the 2 other groups. Conclusion: The results of this study suggest that increased humoral immune responses and the differences in the CD4+ and CD8+ T lymphocyte profiles, and imbalance of their ratios may be related to the severity of H1N1 pneumonia in children.

• Biomedical Science Letters
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• v.12 no.3
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• pp.289-301
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• 2006

Cardiopulmonary bypass (CPB) for cardiac surgery triggers the production and release of numerous chemotactic substances and cytokines, ensuing systemic inflammatory response that leads to postoperative major organ dysfunction. Traditionally, corticosteroids (steroid) have been administered to patients undergoing cardiac surgery to ward off these detrimental physiologic alterations. However, the majority of the studies have been performed on adult patients with high-dose steroid. We carried out a randomized, prospective, double-blind study to compare the efficacy of low-dose steroid with that of high-dose steroid and to determine the adequate dose of pretreated-steroid for prophylactic effects in pediatric cardiac surgery. Thirty pediatric patients scheduled for elective cardiac surgery were randomly assigned to two groups; fifteen patients received low-dose methylprednisolone (10mg/kg intravenously, n=15, low-dose group) and the others received high-dose methylprednisolone (30mg/kg intravenously, n=15, high-dose group) 1 hour prior to CPB. Arterial blood samples were taken before CPB (Pre-CPB), 10 minutes after start of CPB (CPB-10), and immediately after CPB-end (CPB-OFF) for measuring total leukocyte counts (T-WBC) and diff-counts, platelet counts, interleukin-6 (IL-6), myeloperoxidase (MPO), total antioxidant (TAO), neuron-specific enolase (NSE), troponin I (TNI), aspartate aminotransferase (AST), alanine aminotransferase (ALT), creatinine, and blood urea nitrogen (BUN) levels. Other parameters such as volumes of urine output, pulmonary index $(PI,\;PaO_2/FiO_2)$, mechanical ventilating period, intensive care unit (ICU)-staying period, postoperative complications (fever, wound problem), postoperative 24 hrs and total volumes in blood loss, and hospitalized days were also assessed. All parameters were compared between two groups. There were no significant differences in T-WBC counts, monocyte fraction, platelet counts, TA levels, NSE levels, creatinine levels, BUN levels, the volumes of total urine output, PI, the incidences of fever and wound problem, postoperative 24hrs- and total-blood loss volumes and ICU-staying period between two groups (P>0.05). At CPB-OFF, neutrophil fraction, MPO level, TNI level, and AST level were higher in the high-dose group than in the low-dose group (P<0.05). IL-6 level at CPB-10 was higher in the high dose-group than in the low-dose group (P<0.05). Furthermore, mechanical ventilating periods and hospitalized days of the high-dose group were significantly longer than those of low-dose group (P<0.05). The high-dose group had significantly low lymphocyte fi-action at CPB-OFF compared with the low-dose group (P<0.001). These findings suggest that pretreatment of high-dose steroid is not superior to that of low-dose steroid regrading its potential benefits in pediatric cardiac surgery. Therefore, the conventional strategy of steroid treatment, high-dose pretreatment, should be modified in the cardiac surgery with CPB. However, further studies must be performed on the larger number of patients in as much as small number of patients in this study.

• Journal of Preventive Medicine and Public Health
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• v.31 no.2 s.61
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• pp.228-239
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• 1998

Visual display terminal(VDT) is popular in majority of office in modern countries. Musculoskeletal pain due to repetitive work with VDT is a serious industrial accident at present. In recent studies, shoulder pain in VDT users is the most common problem in Korea. The purpose of this study was to evaluate and compare the effect of excercises on shoulder dysfunction in VDT-related female office workers. Of the 119 patients with shoulder dysfunction, 32 patients entered into the study. 16 patients(Group I) were not prescribed excercises, other 16 patients (Group II) performed throughout the specific shoulder excercises such as pendular excercises(for-ward, backward and circumduction) and sidelying external rotation excercises with weights. After 3 months of excercises, the two groups were compared in term of the pain rating scale, disability questionnaire score and range of motion score. The results were summarized as follows ; 1. The pain rating scale in Group I before and after 3 months were not differenced significantly(p value=0.784) and in Group II, the scale before and after excercises were differenced significantly(p value=0.0005). 2. The disability questionnaire scores in Group I before and after 3 months were not differenced significantly(p value=0.437) and in Group II, the scores before and after excercises were differenced significantly(p value=0.0002). 3. The ROM scores of the affected shoulder in Group I before and after 3 months were not differenced significantly(p value=0.876) and in Group II, the scores before and after excercises were differenced significantly(p value=0.0017). In conclusion, that the specific shoulder excercises on shoulder dysfunction in VDT-related female office workers are encouraged.

• Journal of Yeungnam Medical Science
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• v.1 no.1
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• pp.89-93
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• 1984

This study included 38 children patients of less than 4 years old and 18kg body weight. 93 After 8 hours of starvation, the children were divided into 2 groups: Group I received Hartmann's solution and Group II received Hartmann's dextrose solution. In both groups, the rates of infusion were 10ml/kg/hr before and during operation and blood samples were collected just before and 1 hr after induction of anesthesia, respectively. The results were as follows; 1) In the Group I, blood glucose concentration just before induction was decreased than control values that was checked at ward, and 1 hr values after induction was significantly increased than control values. 2) In the Group II, blood glucose concentration was increased just before and 1hr after induction than control values significantly respectively. 3) In the blood glucose concentration 1 hr after induction, difference between Group I and Group II was not significant. 4) In children, duration of starvation about 8 hrs did not significant influence on blood glucose concentration although dextrose was not administered.

• Journal of architectural history
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• v.10 no.4 s.28
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• pp.43-55
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• 2001

Living spaces are the results of social environment and also the reflection of the viewpoints by their residents toward human culture and society. Therefore, in studying living spaces, the true essence of the spaces could be easily distorted when cultural and symbolic motives and values are disregarded and only their apparent characteristics are looked into. Hence, it's necessary to simultaneously understand both physical dwelling spaces from architecture's view points and social ideas, simultaneously, of people who form and interact with the spaces. Hence, this paper tries to study housing religion which is one of shamanistic religions which, in turn, have been the fundamental element of ancient religions and came into existence on the basis of dwelling spaces. This study presumes that house religion may have been permeated with its creators' ideas about living and those ideas could be one of those factors which plays a role in organizing of dwelling spaces. As such, with these prior analyses, this thesis attempts to understand the meaning of various dwelling spaces via the characteristics and functionalities of various house spirits which are mentioned in a local house religion and also will find out spatial harmony of Korean traditional living spaces by way of corelations among living spaces, people, and personalized house spirits. Almost all traditional Korean houses have assigned a house spirit to their individual dwelling space. This means a traditional house was considered as a scared space in a secular world called human society and the space was actually intended to protect sacredness of dwelling places from earthliness outside. So when the hierarchy of house spirits in housing religion is projected to a Korean traditional house, it can be shown that a dwelling house as a building was personified to a respectable human status. In other words, it can be concluded that each space was synonymous with a dwelling place for each house spirit and was considered a sacred godly place. In a nutshell, not only each space in a Korean traditional house was a physical and functional space, but also it formed a scared spatial place along with the concept of house spirits intending to ward off disasters and enjoy a comfortable life through those religious symbols and meanings. Housing shamanistic religion which has long been existing with residents and their lives is seeped with the viewpoints of the residents toward life, and hence understanding the meanings and organization of Korean traditional housing can reveal commonly practiced principles of spatial organization of the traditional houses. Therefore an analysis of Korean traditional housing on the basis of humanistic social ideas will help learn Korea's traditional houses which need to be understood in various methods.

• Journal of Hospice and Palliative Care
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• v.17 no.2
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• pp.75-84
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• 2014

Purpose: This study was conducted to explore predictors of health status of family caregivers of hospice patients. Methods: This study included 118 family caregivers of patients who were admitted to the hospice ward of three general hospitals in D city. The collected data were analyzed by frequency, percentage, t-test, one-way ANOVA, Pearson's correlation coefficients, and stepwise multiple regression using the SPSS WIN 18.0 program. Results: The mean score for overall health of family caregivers was 2.68 (${\pm}0.42$). Mean scores for variables related to health were 2.55 (${\pm}0.37$) for sleep quality, 1.91 (${\pm}0.41$) for anxiety and 2.78 (${\pm}0.33$) for hope. Variables such as sleep quality, gender, anxiety and hope explained 59.8% of variance among family caregivers' health conditions. Conclusion: These results suggest the need for nurses to search for ways to promote health of hospice patients' family caregivers, such as improving the quality of sleep, easing their anxiety and encouraging hope.

• Journal of Hospice and Palliative Care
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• v.17 no.4
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• pp.270-277
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• 2014

Purpose: This is a retrospective study that investigated cancer patients' complaints of moderate or severe pain to analyze pain characteristics, pain relief interventions and their effects. Methods: The participants of this study were 363 patients who were hospitalized in the cancer ward for three to 30 days and scored 4 points or higher on the pain severity assessment. Results: The most frequent region of pain was the abdomen. The most frequent factor that exacerbated pain was movement. The most frequent pain alleviating factor was administration of analgesics. The most frequent pain type was breakthrough pain, and the most frequent non-pharmaceutical intervention for pain control was heat therapy. Among all, analgesics were routinely prescribed for 52.2% of the participants. Morphine sulfate was the most frequently used analgesic while Gabapentin was the most frequently used non-narcotic analgesic. At the time of discharge, 82.5% of the participants marked their pain intensity as 3 points or lower. Conclusion: For cancer patients complaining of moderate or severe pain, it is important to actively control pain from the beginning of admission. Thus, it is necessary to educate not only cancer patients using narcotic analgesic for pain control and their families but nurses about the effects and side-effects of drugs. Moreover, patients and their families need to learn how to assess and record pain at home to collect data that can be referred for future treatment.

• Journal of Hospice and Palliative Care
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• v.17 no.4
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• pp.248-258
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• 2014

Purpose: This study was conducted to explore the nursing needs and satisfaction of patients who are hospitalized at hospice palliative care institutions. Methods: This study included 80 hospice patients who were in-patients of the hospice department of two general hospitals in S city. The collected data were analyzed by descriptive statistics, t-test, one-way ANOVA, and Pearson's correlation coefficients using the IBM SPSS 20.0 program. Results: The mean score of nursing needs and satisfaction were 3.58 (${\pm}0.31$) and 3.25 (${\pm}0.20$) respectively. Significant differences in hospice nursing needs and satisfaction were observed in terms of general characteristics including gender, education level, occupation, religion, support for medical expense and functional status. Significant positive correlation was found between the overall nursing needs and nursing satisfaction. Conclusion: Based on the results of this study, in order to improve the quality of hospice service, further study is necessary in a comprehensive manner to develop nursing intervention to meet physical, psychological/social, spiritual, and educational/referral nursing needs of hospice in-patients.

• Applied Microscopy
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• v.17 no.1
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• pp.98-114
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• 1987

Degranulation of the rat peritoneal mast cell induced by intraperitoneal injection of horseradish peroxidase(HRP) was studied using light and electron microscopes. 1. Rat peritoneal mast cells in the Tyrode's buffered salt solution injected control group did not show any particular morphological changes following the specified time course. 2. Under the light microscope, the majority of mast cells observed 10 minutes after HRP injection were nearly the same as those of the control group. However, after 30 minutes, granule densities or staining properties of certain cells began to decrease and these appearances increased gradually until 12 hours after injection, at which time small groups of granules being stained pale-red or pink with toluidine blue were easily identified in the cytoplasm of many cells, and numerous extruded granuleg were scattered around these cells. 3. In the mast cells representing the early stage of degranulation induced by HRP, the electron densities of certain granules decreased as the size enlarged, and perigranular cavities were formed by perigranular membrane expansion. As a result, a thin cytoplasmic septum was formed between the expanded perigranular membrane and the cytoplasmic membrane in the cell periphery, and fusion of the adjacent perigranular membranes was observed in the inner side of the cell. 4. In some mast cells, one or two changes in the peripheral cytoplasmic septum could be seen. One was a focal rupture of the peripheral septum and the other was the formation of a saccule containing one or more vesicles. This saccule was thought to be used for granule-extrusion site and/or material absorptive apparatus judging from the morphological characteristics. 5. As the degranulation proceeded, the granule was extruded from the cell after partial rupture of the peripheral cytoplasmic septum. This phenomenon proceeded to-ward the inner side of the cell through the fused perigranular cavities, and consequently several distinct cavities containing a few unextruded membrane-free granules were formed throughout the cytoplasm after 12 hours. As a rule, the granule-extrusion sites were relatively fewer while the cytoplasmic cavities resulting from degranulation were more numerously observed. Thus, it was thought that the granule-extrusion sites tended to be restricted in the HRP-induced degranulation.