• Journal of Korean Academy of Nursing Administration
• /
• v.5 no.2
• /
• pp.197-207
• /
• 1999

The purpose of this research was fourfold: (a) to identify the use rate of the indirect care interventions performed by nurses, (b) to estimate the time to perform each intervention, (c) to identify the indirect care interventions to be delegated to others, and (d) to determine the level of provider preparation needed to delegate indirect care interventions. The sample consisted of 199 nurses working in three hospitals. The Indirect Care Survey developed by the Iowa Intervention Project team was used for data collection. The instrument was translated to Korean and validated by nurse experts. Each of the 26 indirect care interventions were used several times a day. Four interventions (i.e.. Documentation, Shift Report, Specimen Management, and Transport) were performed several times a day by 50% or more of the nurses. The most frequently used intervention was Documentation, followed by the interventions Shift report. Environmental Management, Transport, and Examination Assistance. The least used intervention was Quality Monitoring, followed by the interventions Order Transcription, Referral, Health Care Information Exchange, Multidisciplinary Care Conference, and Product Evaluation. The intervention taking the most time to per-form was Technology Management (155.3 minutes), followed by the interventions Documentation, (122.2 minutes), Delegation (84.4 minutes), Supply management (83.4 minutes), and Preceptor: Student (79.9 minutes), Overall, the nurses reported that they would not delegate to others the majority of the interventions. More than 50% of the nurses would not delegate 21 interventions. Shift Report would not be delegated by 95% of the nurses and Documentation would not be delegated by 92% of the nurses. Caregiver Support would be delegated by 68% of the nurses to family. Three interventions (i.e.. Environmental Management, Examination Assistance, and Transport) would be delegated by more than 50% of the nurses to Nursing Assistant. This study will contributes to determining costs of nursing services and enhancing quality of nursing care. Replication study will be needed with large sample.

• Journal of architectural history
• /
• v.20 no.3
• /
• pp.59-82
• /
• 2011

Based on travel literatures written by the Joseon literati, the different picture of seventeenth- and eighteenth-century Buseok monastery from the one today emerges. Not only do the buildings removed from the monastery today reappear, but the quite different way of the monastic operation comes to light. This observation leads to a speculation that the monastery was functionally and spatially divided into two territories; that of the Immeasurable life hall and of the Dharma hall. The Immeasurable life hall's precinct was built at the site open to the west providing a grand vista of mountainous area. This siting, originally having a close relation with the visualization such as the Sixteen contemplation, not simply gave such a special attraction that the first built architectural composition has lasted through the centuries to the late Joseon, but also granted to the Chwiweon pavilion located at the western side of the precinct a special meditative quality. As the monastery has suffered from a number of heavy duties in the Joseon period, the architectural attraction of the precinct was mobilized to promote the monastic identity as the legitimate monastery first built by Uisang, the founder of Hwaeom Buddhsim. Especially, the Chwiweon pavilion offered a mental space so that the literati might form an affirmative attitude toward the monastery and the monks. The Dharma hall's precinct was built based on the direct replication of the architectural layout presented in liturgy books for the Water and Land rite as well as the Vulture Peak rite. This layout is generally called the Court-type enclosed by four buildings, which has been widely fashioned in the late Joseon period. This characteristic gave to the Dharma hall precinct an arbitrary and anonymous quality, which helped not only avoid the tourism of the literati, but also secure the sacrality and ritual efficacy at occasions of Buddhist rites. This division of territories of the monastery can be understood as the strategic reaction from the monks in order to survive in the age of oppression against Buddhism. In result, the identity of Buseok monastery in the late Joseon was established as the Nine-rank sanctuary where Bodhisattvas permanently resided.

• Proceedings of the Korean Society of Crop Science Conference
• /
• 2017.06a
• /
• pp.245-245
• /
• 2017

Heavy metal pollution of agricultural soils affects land productivity and has impact on the quality of surrounding ecosystem. Soil microbial community parameters are used as reliable indices for assessing quality of agricultural lands under metal stress. This study investigated bacterial community structure of polluted and undisturbed paddy soils to elucidate soil factors that are related to alteration of bacterial communities under conditions of metal pollution. No obvious differences in the richness or diversity of bacterial communities were observed between samples from polluted and control areas. The bacterial communities of three locations were distinct from one another, and each location possessed distinctive set of bacterial phylotypes. The abundances of several phyla and genera differed significantly between study locations. Variation of bacterial community was mostly related to soil general properties at phylum level while at finer taxonomic levels concentrations of arsenic and lead were significant factors. According to results of bacterial community functional prediction, the soil bacterial communities of metal polluted locations were characterized by more abundant DNA replication and repair, translation, transcription and nucleotide metabolism pathway enzymes while amino acid and lipid metabolism as well as xenobiotic biodegradation potential was reduced.Our results suggest that the soil microbial communities had adapted to the elevated metal concentrations in the polluted soils as evidenced by changes in relative abundances of particular groups of microorganisms at different taxonomic resolution levels, and by altered functional potential of the microbial communities.

• Asian-Australasian Journal of Animal Sciences
• /
• v.19 no.8
• /
• pp.1190-1196
• /
• 2006

This experiment was carried out to investigate the effects of Korean, Japanese and Chinese green tea on laying performance and egg quality in hens. A total of 168 "Tetran Brown" hens aged 40 weeks were assigned to 7 treatments in a completely randomized design. Each treatment had 4 replicates accommodating 6 layers per replication. The seven dietary treatments were: 1) control diet with no green tea added, 2) diet containing 1.0% Korean green tea (1.0% KGT), 3) diet containing 2.0% Korean green tea (2.0% KGT), 4) diet containing 1.0% Japanese green tea (1.0% JGT), 5) diet containing 2.0% Japanese green tea (2.0% JGT), 6) diet containing 1.0% Chinese green tea (1.0% CGT), and 7) diet containing 2.0% Chinese green tea (2.0% CGT). Egg production rate of the layers fed diets containing 1.0 or 2.0% green tea powders were significantly increased compared to that of the control (p<0.05). The egg weight of layers was significantly reduced in layers fed 1.0% CGT (p<0.05). The feed intake was significantly decreased in KGT and CGT groups at 2.0% inclusion levels (p<0.05). The egg shell thickness and shape index of JGT treatment was significantly lower than that of the control (p<0.05). There were no significant differences in albumen index, yolk index and Haugh unit of eggs for layers fed diets containing green tea powders regardless of origin (p>0.05). Green tea feeding to layers tended to reduce the overall cholesterol content of egg yolk. Particularly, 1.0 or 2.0% CGT significantly depressed the total cholesterol content of egg yolk (p<0.05). In conclusion, incorporation of 1.0 or 2.0% Korean, Japanese and Chinese green tea into layer diets regardless of origin had favorable effects on laying performance and egg quality profiles. Among the three green tea sources, the Chinese green tea powder had the highest reducing effect on cholesterol content in egg yolk.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.51 no.1
• /
• pp.42-46
• /
• 2018

Fetal bovine serum (FBS) is essential for cell culture and is used in the determination of infectivity titer and propagation of viruses. To clarify the effects of FBS on the propagation of viral haemorrhagic septicaemia virus (VHSV), which is a causative agent of mass mortalities of olive flounder Paralichthys olivaceus in Korea, VHSV was inoculated into an EPC (epithelioma papulosum cyprinid) cell line supplemented with MEMs (minimal essential medium) with FBS concentrations of 0%, 2%, 5%, and 10% (MEM0, MEM2, MEM5, and MEM10), respectively, and infectivity titers were compared. Cytopathic effects were observed in all experimental groups at 2 days post virus inoculation (dpi) and all cells were detached from cell culture flasks at 7 dpi. Infectivity titers increased to 3 dpi, persisted to 7 dpi, and decreased when cells were detached. The titer of VHSV in EPC cells in MEM0 was the lowest while those in the other experimental groups showed similar levels. In conclusion, 2% (v/v) of FBS was sufficient to propagate VHSV in EPC cells and the withdrawal of VHSV from cell culture flasks should be performed before cell detachment.

• Fisheries and Aquatic Sciences
• /
• v.25 no.6
• /
• pp.320-326
• /
• 2022

Most of the emerging diseases that threaten humans are caused by RNA viruses which are extremely mutable during evolution. The fish RNA virus, viral hemorrhagic septicemia virus (VHSV) can infect a broad range of aquatic animal hosts, but the transmissibility of VHSV to mammals has not been thoroughly investigated. Therefore, our study aimed to investigate the potential adverse effects of VHSV in mammals. Briefly, the survival of VHSV was determined using only minimum essential media (MEM-2) and mammalian SNU-1411 and hepa-1c1c7s cells at 15℃ and 37℃. Mice (Mus musculus, 27.3 ± 1.9 g) were intravenously injected with VHSV (2.37E+05 TCID₅₀·mice^-1) in triplicate. Clinical signs and survival rates were examined at 14 days post-challenge, and infection was confirmed in the surviving mice. The 50% tissue culture infective dose (TCID₅₀) and polymerase chain reaction analysis were used to determine viral titers and the infection rate, respectively. The titer of VHSV suspended in MEM-2 at 15℃ was reduced by only one log after 8 days, whereas the virus maintained at 37℃ was inactivated 8 days post-inoculation (dpi). There were no recognizable cytopathic effects in either SNU-1411 or hepa-1c1c7s cells inoculated with VHSV at 15℃ and 37℃. VHSV in those cell lines at 37℃ was rapidly decreased and eventually inactivated at 12 dpi, whereas virus at 15℃ remained at low concentrations without replication. In vivo experiment showed that there were no signs of disease, mortality, or infection in VHSV-infected mice. The results of this study indicate that it is highly unlikely that VHSV can infect mammals including humans.

• The Journal of the Acoustical Society of Korea
• /
• v.27 no.2
• /
• pp.66-74
• /
• 2008

In this paper, we propose new techniques that can improve the quality of AAC and SBR encoders comprised in low bitrate HE-AAC. To reduce the pre-echo artifacts often occurring for transient blocks in AAC, we propose an extended Temporal Noise Shaping (sTNS) in which the frequency range is selectively extended down to the low-frequency region. Also, for he high-frequency region being coded by SBR encoder, tones are identified through a sinusoidal modeling and their frequencies are adjusted within the QMF band in order to reduce the noise floor due to aliasing. Spectrograms of the decoded signals were compared and listening tests were conducted to evaluate the proposed algorithm. Results confirmed the effectiveness of the proposed algorithm.

• Food Science of Animal Resources
• /
• v.28 no.5
• /
• pp.667-674
• /
• 2008

This study was conducted to investigate the effects of germinated and fermented unmarketable soybean (GFS) on laying performance and egg quality in laying hens. A total of two hundred laying hens were divided into 5 groups (5 treatment $\times$ 4 replication $\times$ 10 birds each) and fed with the experimental diets for 8 wk as follows: control, GFS free; T1, GFS 0.15%; T2, GFS 0.3%; T3, GFS 1%; T4, GFS 2%. The laying performance, egg quality, blood profiles, cecal microbial population, isoflavone content in egg yolk were investigated. There were no significant differences laying performance, relative liver and spleen weights, egg yolk color, eggshell color among groups. Eggshell strength in groups fed with diets containing GFS increased, but not significantly. Eggshell thickness significantly increased in the GFS-supplemented group. No significant differences were observed in the blood profiles and intestinal microflora after supplementation. The decrease of Haugh unit during storage was alleviated by feeding of GFS (p<0.05). The concentrations of malondialdehyde in groups fed with GFS were decreased as compared with control (p<0.05). Isoflavones in the egg yolk were detected in group fed with diet containing 2% GFS. These results showed that unmarketable GFS could be used as a favorable feed additive and feedstuff for production of quality enhanced and isoflavone fortified eggs.

• Journal of The Korean Association of Information Education
• /
• v.21 no.4
• /
• pp.451-462
• /
• 2017

This study selected 3D printing that is highly likely to be adopted in schools. This research was conducted in two stages: 1) proposing the learning activity framework for utilizing 3D printing in education, and 2) exploring the potential of integrating 3D printing in the school field. The '3D printing learning activity framework' proposed in this study includes four phases that are categorized according to the complexity of problem-solving processes and collaborative interaction: Step 1 as production through replication, Phase 2 as means of imaginary expression, Phase 3 as near problem-solving, and Phase 4 as expanded problem-solving. Next, we conducted the field study with 23 students in the 6th grade math class where they learned the various solid shapes and volumes through 3D printing-integrated activities. The lesson was considered as Phase 1, which is the production through replication. Overall, the results showed that the participants had positive perceptions about the efficacy of 3D printing activities, the quality of learning experience, and satisfaction. On the other hand, it was found that the usability of 3D printers and CAD program needs further improvement The contribution of this study can be found in the learning activity framework that can guide 3D printing activity design in school, and in the exploration of enhancing the connection between 3D printing activities and curricular relevance beyond simple interest toward a novel technology.

• Korean Journal of Agricultural Science
• /
• v.38 no.4
• /
• pp.695-701
• /
• 2011

The study was carried out to investigate the effect of lighting regimes on performance and meat quality of broiler. A total of 912 chicks was divided into 2 groups with male (3 replications/group, 34 heads/replication) and female (3 replications/group, 42 heads/replication). Treatments were control (C, natural lighting), T1 treatment (24L), and T2 treatment (1~2d, 24L; 2~4d, 23L+1D; 4~16d, 16L+8D; 16~21d, 18L+6D; 21~42d, 23L+1D) by lighting regimes. Lysine content of male chicken meats at T2 treatment was lower compared to that of other treatments (p<0.05). There was no significant difference in all nonessential amino acid (AA) among treatments. Methionine content of female chicken meats at T2 treatment was lower compared to that of other treatments (p<0.05). The rate of C16:0, C16:1n7, and C18:1n9 of male chicken meat at T2 treatment was higher than that of other treatments (p<0.05), while C18:2n6 was lower at T2 treatment than other treatment (p<0.05). Mono-saturated fatty acid was the highest at T2 treatment, however, polysaturated fatty acid was the lowest at that treatment (p<0.05). There was no considerable difference in fatty acid composition of female chicken meat among treatments. Finally, lighting regime didn' affect on amino acid and fatty acid contents, and used possibly on energy reduction.