The Journal of Korean Academic Society of Nursing Education
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v.5
no.1
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pp.97-105
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1999
Based on literature, status and role of the NP in America was reviewed. The process of developing NP program in America suggests us many things. In America, nurse practitioners have sustained a mutually beneficial status with their patients for over thirty years. Excel fence in academic education and clinical training will enable nurse practitioners to continue to provide quality health care. The magnitude changes in the health care system of the United States, the challange of providing real access of health care continues. Lack of access to adequate primary care was the driving force in the initial 1965 Federal Involvement in developing the NP role. In 1993 President Bill Clinton's health care reform initiative provided policy support for NPs as primary care providers. The Institute of Medicine explicitly recognized NPs as an integral part of the primary care team. In addition, several national reports recognized NPs as affordable, accessible, high-quality care providers. The recent passage of direct Medicare reimbursement for NPs reflected public policy statements coincided with and likely contributed to a growth spurt in the NP workforce. From 1965 to 1977 NP programs offered traditional primary care clinical tracks(adult, family, woman's health, and pediatrics) for relatively small clusters of students in a variety of institutional settings. From 1978 to 1990 these educational programs were incorporated into graduate schools of nursing. By 1990 the majority of NPs received educational preparation in master's-level nursing programs. A new emphases was placed on postmaster's NP programs designed for master's prepared clinical nurse specialists and nurse managers. he the health care system shifted hospital nursing resources toward community-based care, these master's -level nurses sought additional NP preparation. NP educational programs are defined as the educational structure in which one or more NP clinical tracks are offered. NP clinical tracks, in turn, offer curriculum and supervised clinical experiences that match standards in specific practice areas such as family(FNP), adult(AUP), geriatrics(GNP), pediatrics(PNP), women's health (WHNP), neonatal (NNP), and acute care(ACNP). There were indications that NP practice was expanding into new clinical areas as evidenced by new types of tracks, particularly in acute care and psychiatry. The increase in acute care NP students likely reflects the increased demand from hospitals and other acute care settings. In Korea, change of nurse's role into nurse practitioner's role may have many difficulties. The need of health consumer, policy support of government, approval of medical care team are all essential component. Every nursing personnel make effort to planning the new health care delivery system.
Journal of the Korean Society of Food Science and Nutrition
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v.37
no.8
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pp.1037-1043
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2008
In this experiment, citrus juice was fermented by Gluconacetobacter hansenii TF-2, an isolate from tea fungus to develop a new type of acidic beverage. The juice broth is made by fermenting of $11{\sim}17%$ (v/v) juice and sweetened with sucrose (initial sucrose $10^{\circ}Brix$). The fermentation by G. hansenii TF-2 was initiated by adding 5% (w/v) of seed gel (pellicle, tea fungus) which was previously cultured in the same medium (fresh juice broth) and the fermentation was carried out in a dark incubator at $28{\sim}30^{\circ}C$ for about 15 days. During the fermentation a pellicle grew on the surface of the fermenting fluid and acids were produced. Fermented fluid (beverage) was centrifuged at 7,000 rpm for 15 min for further analyses. The highest amount of the other metabolites including organic acids were observed in 5 to 10 days. Major acids were acetic acid (fermented citrus beverage, CB). After 15 days of fermentation, organic acid content such as acetic acid in fermented beverage was measured to be $183.5{\sim}186.6\;ppm$. Free sugars content in CB were 56.8%, 35.1%, 40.7% and 63.2% of unfermented sucrose, glucose, fructose and sorbitol, respectively. When the growth rate of inhibitory effect of the fermented beverage was measured by using several species of food-related bacteria, the beverage fermented with CB exhibited the strongest inhibition against gram-negative (E. coli and Sal. Typhimurium). Its inhibition rate was between $71.9{\sim}94.0%$ at CB. Fermented beverage has shown effectiveness for antimicrobial activity against some species of food-related bacteria.
Du, Cheng-Lin;Chang, Sug-In;Jin, Jae-Keun;Lee, Nam-Gyum
Industry Promotion Research
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v.5
no.1
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pp.137-147
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2020
Social co-operatives, which are working positively to realize the economic and social purpose of being carried out directly through products and services producing the public interest, are steadily expanding under the public interest mission of social co-operatives. It has important theoretical and practical significance to study the model of social co-operatives tailored to the local situation in Korea based on international experience. This study looks at the international status of social co-operatives, international cases, and puts forward problems and suggestions centering on cases of advanced countries. It sought to find a solution to what society required only by solving the problems necessary for sustainable economic growth. In order to achieve the objectives of this study, the social cooperatives of advanced countries, such as Italy, Canada, and France, were organized, compared and analyzed. The study found that the implications of co-operatives in Italy, France and Canada are as follows. First, it is needed to adhere to the principles of co-operatives in pending issues such as social problems and employment and jobs in the community. Second, it is necessary to establish a supportive financial system for the cooperative's initial stability and sustainability. Third, the ecosystem of co-operatives should be formed to support and foster legal systems and network organizations.
As essential trace elements, copper and zinc play important roles in many physiological events in plants. In excess, however, these elements can limit plant growth. This study selected a heavy metal-tolerant plant by analyzing seed germination and biomass of alfalfa (Medicago sativa), canola (Brassica campestris subsp. napus var. nippo-oleifera), Chinese corn (Setaria italica), and a sorghum-sudangrass hybrid (Sorghum bicolor ${\times}$ S. sudanense), and determined heavy metal uptake capacity by analyzing biomass, chlorophyll a fluorescence, and heavy metal contents under high external copper or zinc levels. The seed germination rate and biomass of the sorghum-sudangrass hybrid were higher under copper or zinc stress compared to the other three plants. The plant biomass and photosynthetic pigment contents of the sorghum-sudangrass hybrid seedlings were less vulnerable under low levels of heavy metals (${\leq}50ppm$ copper or ${\leq}400ppm$ zinc). The maximum quantum yield of PSII ($F_v/F_m$) and the maximum primary yield of PSII ($F_v/F_o$) decreased with increasing copper or zinc levels. Under high copper levels, the decline in $F_v/F_m$ was caused only by the decline in $F_m$, and was accompanied by an increase in non-photochemical quenching (NPQ). The $F_v/F_m$ declined under high levels of zinc due to both a decrease in the maximum fluorescence ($F_m$) and an increase in the initial fluorescence ($F_o$), and this was accompanied by a marked decrease in photochemical quenching (qP), but not by an increase in NPQ. Accumulations of copper and zinc were found in both aboveand below-ground parts of plants, but were greater in the below-ground parts. The uptake capacity of the sorghum-sudangrass hybrid for copper and zinc reached 4459.1 mg/kg under 400 ppm copper and 9028.5 mg/kg under 1600 ppm zinc. Our results indicate that the sorghum-sudangrass hybrid contributes to the in situ phytoremediation of copper or zinc polluted soils due to its high biomass yield.
Proceedings of the Korean Society For Composite Materials Conference
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2002.10a
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pp.88-91
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2002
The two dimensional size effect of specimen gauge section (length x width) was investigated on the compressive behavior of a T300/924 [45/-45/0/90]3s, carbon fiber-epoxy laminate. A modified ICSTM compression test fixture was used together with an anti-buckling device to test 3mm thick specimens with a 30$\times$30, 50$\times$50, 70$\times$70, and 90mm$\times$90mm gauge length by width section. In all cases failure was sudden and occurred mainly within the gauge length. Post failure examination suggests that $0^{\circ}$ fiber microbuckling is the critical damage mechanism that causes final failure. This is the matrix dominated failure mode and its triggering depends very much on initial fiber waviness. It is suggested that manufacturing process and quality may play a significant role in determining the compressive strength. When the anti-buckling device was used on specimens, it was showed that the compressive strength with the device was slightly greater than that without the device due to surface friction between the specimen and the device by pretoque in bolts of the device. In the analysis result on influence of the anti-buckling device using the finite element method, it was found that the compressive strength with the anti-buckling device by loaded bolts was about 7% higher than actual compressive strength. Additionally, compressive tests on specimen with an open hole were performed. The local stress concentration arising from the hole dominates the strength of the laminate rather than the stresses in the bulk of the material. It is observed that the remote failure stress decreases with increasing hole size and specimen width but is generally well above the value one might predict from the elastic stress concentration factor. This suggests that the material is not ideally brittle and some stress relief occurs around the hole. X-ray radiography reveals that damage in the form of fiber microbuckling and delamination initiates at the edge of the hole at approximately 80% of the failure load and extends stably under increasing load before becoming unstable at a critical length of 2-3mm (depends on specimen geometry). This damage growth and failure are analysed by a linear cohesive zone model. Using the independently measured laminate parameters of unnotched compressive strength and in-plane fracture toughness the model predicts successfully the notched strength as a function of hole size and width.
Ha, Tai-Moon;Chi, Jeong-Hyun;Ju, Young-CheoI;Kim, Hee-Dong
Journal of Mushroom
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v.1
no.1
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pp.34-43
/
2003
This study was carried out to determine the proper pin-heading induction time(spawn running time) when different incubation temperature were applied to Pleurotus ostreatus(Chunchu 2ho, Suhan 1ho, Heukpyung). Incubation period was 17 days at 23 and 21 days at 17 for Chunchu 2ho, 17 days at 23 and 26 for Heukpyung, and 22~23 days at 17~23 for Suhan 1ho. Incubation period for Suhan 1ho was not significantly affected by incubation temperature. The time required for initial pin-heading was 4~5 days at 17, 20, 23 and 26 for Chunchu 2ho as well as Heukpyung, and was 3 days at 17, 20, 23 and 5~6 days at 26 for Suhan 1ho. As the incubation period became longer, the available fruit-bodies at Chunchu 2ho were made more but they were short. The yield of Chunchu 2ho and Heukpyung increased when incubated for 22~27 days at 20~23 and that of Suhan 1ho also increased when incubated for 22~23 days at 17~23.
In this study spent mushroom substrate has ingredient raising rice bed soil. spent mushroom substrates are organic content is 60.72% were nitrogen - phosphoric acid - potassium is 1.39 - 0.89 - 0.81% of the chemical characteristics determine. Post-harvested mushroom substrates of the stabilization process, the temperature of the 20 days time progress in the pH of the rise and fall of temperature down were germination index also 77, as identified, Spent mushroom substrate bed soil for raising rice Ingredient to take advantage of the 20 days or more stabilization process needed to be investigated. Rice seed germination characteristic is in the common bed soil for raising rice ingredients manufactured control group and the comparison in spent mushroom substrate is 10% or less of a mixed experimental population of the germination rate is 82% was more than average days to germination and germination energy, even a statistical significant difference is or control group than good level was ok. Growth initial also spent mushroom substrate is 10% or less of a mixed experimental population of shoot dry matter (top) and grave less than control group higher as confirmed spent mushroom substrates are bed soil for raising rice ingredients are likely to take advantage of the high, as was the judge.
The Kyongan Stream and the inlet part of Paltang Reservoir are under significant influence of the effluent of sewage wastewater treatment plant (SWTP) and untreated domestic wastewater (DOW). The fertility of wastewater was evaluated through bioassay using natural phytoplankton population diluted in five levels. The concentrations of $NH_4$, SRP and SRSi were positively correlated with the biomass of phytoplankton. P concentration showed stronger correlation (r = 0.959, p<0.001)than other nutrients. Compared with the initial concentrations, $NH_4$ concentrations in samples from SWTP and DOW decreased 96% and 7%, respectively during the cultivation, and those of SRSi decreased 97% and 60%. However, $NO_3$ concentrations in samples neither showed any particular change nor any increase. Chl-a concentration ranged between $20\;{\mu}g/l$ and $125\;{\mu}g/l$, which maximum value increased up to 83 times. Estimated from the relationship between chl-a and SRP, the P concentration that can maintain the biomass of algae under mesotrophic state (<25\;{mu}g$\;chl-a/l$) was $83\;{mu}g\; P/l$. The volume of flow to maintain this level solely by natural dilution was about $16{\sim}25$ times of in flowing volume in the stream. However, it is not feasible to tap water of such quantity. Therefore, it is imperative to build an advanced sewage wastewater treatment facility that can reduce $NH_4$ and SRP concentrations that promote the growth of phytoplankton in discharged water.
Kim, Sang-Yong;Yoon, Sang-Hyun;Kim, Jung-Min;Oh, Deok-Kun
Korean Journal of Food Science and Technology
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v.28
no.5
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pp.970-973
/
1996
Effect of cell density on the xylitol production from xylose by Candida parapsilosis KFCC 10875 was investigated. The concentrated cells were obtained by centrifugation of culture broth. The xylitol production rate was maximum at the cell concentration of 20 g/l and the specific xylitol production rate decreased when the cell concentration was increased due to oxygen limitation. Effect of the initial concentration of xylose on the xylitol production was also examined using the concentrated cells of 20 g/l. The xylitol production rate, specific xylitol production rate, and xylitol yield from xylose were maximum at 170 g/l xylose. Above 170 g/l xylose, the xylitol production rate was remarkably decreased. The concentrated cells could also be obtained by adjusting the dissolved oxygen (DO) during fermentation. The rapid accumulation of cells up to 20 g/l was achieved by maintaining an increased level of DO during the exponential growth phase and then, for the efficient xylitol production, the DO was changed to a low level in the range of 0.7-1.5%. A fed-batch fermentation of xylose by adjusting the DO level was carried out in a fermentor and the final xylitol concentration of 140 g/l from xylose of 200 g/l could be obtained for 56 h fermentation.
This study was carried out to investigate the efficacy of strong acidic electrolyzed acid water (SAEW; Strong acidic electrolyzed water, pH 2.76, ORP 1,128 mV, HClO 105.0 ppm) and low alkaline electrolyzed water (LAEW; Low alkaline electrolyzed water, pH 8.56, ORP 660 mV, HClO 73.8 ppm) as storing liquid for peeled lotus root. During storage at $5^{\circ}C$, it was showed that SAEW and LAEW inhibit growth of microorganisms until at least 5 days of storage. Total phenolic contents, polyphenol oxidase (PPO) activity, and color differences value $({\Delta}E)$ of peeled lotus roots stored in SAEW and LAEW were lower than that of one stored in TW (tap water). The hardness decrement of lotus roots stored in SAEW and LAEW were lower than that of lotus root stored in TW too. Contents of moisture crude protein crude fat, crude ash, crude fiber, and total sugars were gradually decreased during storage. Whereas vitamin C content of lotus root stored in 0.6% acetic acid was most rapidly decreased to 25% as compared with one of initial days of storage that of lotus roots stored in SAEW and LAEW was not decreased significantly as compared with one stored in TW. Sensory characteristic during storage was preferable on lotus root stored in SAEW to the other treatments.
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