• The Journal of Advanced Prosthodontics
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• v.14 no.4
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• pp.212-222
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• 2022

PURPOSE. To evaluate and compare the effect of impression type (conventional vs digital) and the number of implants on the time from the impressions to the generation of working casts of mandibular implant-supported fixed completearch frameworks, as well as on patient satisfaction. MATERIALS AND METHODS. 17 participants, 3 or 4 implants, received 2 types of digital impression methods (DI) and conventional (CI). In DI, two techniques were performed: scanning with the scan bodies (SC) and scanning with a device attached to the scan bodies (SD) (BR 10 2019 026265 6). In CI, the making of a solid index (SI) and open-tray impression (OT) were used. The outcomes were used to evaluate the time and the participant satisfaction with conventional and digital impressions. The time was evaluated through the timing of the time obtained in the workflow in the conventional and digital impression. The effect of the number of implants on time was also assessed. Satisfaction was assessed through a questionnaire based on seven. The Wilcoxon test used to identify the statistical difference between the groups in terms of time. The Mann-Whitney test was used to analyze the relationship between the time and the number of implants. Fisher's test was used to assess the patient satisfaction (P<.05). RESULTS. The time with DI was shorter than with CI (DI, $\tilde{x}=02:58$; CI, $\tilde{x}=31:48$) (P<.0001). The arches rehabilitated with 3 implants required shorter digital impression time (3: $\tilde{x}=05:36$; 4: $\tilde{x}=09:16$) (P<.0001). Regarding satisfaction, the DI was more comfortable and pain-free than the CI (P<.005). CONCLUSION. Digital impressions required shorter chair time and had higher patient acceptance than conventional impressions.

• The Journal of Korean Academic Society of Nursing Education
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• v.21 no.2
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• pp.202-214
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• 2015

Purpose: The purpose of this study was to develop extracurricular coaching programs to improve communication skills and leadership for nursing students and evaluate the effects of the programs. Methods: The 8-week extracurricular coaching program was developed based on the Joo, Whitmore and Hong models. A quasi-experimental design was used. The subjects were selected by two full-time nursing professors training students at one university in city G. The subjects were chosen from among the advisees of these two professors. Of the students who participated in this study, 29 were in the experimental group and 27 were in the control group. Data was analyzed through t-test and Mann Whitney U-test. Results: The experimental group showed significantly higher post-test scores in communication skills, communication as a nursing outcome, observation of communication, leadership, and leadership as a nursing outcome than those of the control group. However, the experimental group did not reveal significantly higher post-test scores in the number of leadership activities using a portfolio than those of the control group. Conclusion: This extracurricular coaching program can help cultivate important, basic grounding as well as achieve nursing student learning outcomes upon graduation.

• Journal of Korean Clinical Nursing Research
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• v.20 no.3
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• pp.406-416
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• 2014

Purpose: Screening of delirium using delirium assessment tools could promote delirium detection, however, there is lack of report about regular delirium assessment in Korea. This study was intended to describe the prevalence and related risk factors of delirium in intensive care unit (ICU). Methods: The Confusion Assessment Method for the ICU (CAM-ICU) data which were evaluated by nurses in ICUs was obtained through retrospective chart review. Data were analyzed using descriptive statistics, Chi-square test, t-test, Mann-Whitney U test, and stepwise logistic regression. Results: Delirium was evaluated in 125 patients. The incidence rate of delirium was 27.2% with a high prevalence of hypoactive delirium compared to hyperactive delirium (61.8 vs. 38.2%). Those with delirium were older, had hypertension, stayed longer in hospital, receiving ventilator support, had more number of catheters, had low serum protein and albumin level. Delirium incidence also varied according to diagnosis. Age, diagnosis of gastrointestinal disease, and application of ventilator were the significant risk factors for the incidence of delirium. Conclusion: Routine delirium screening is important for early detection of delirium. Identification of high-risk group and running delirium prevention programs could improve early recognition of delirium in ICU.

• Journal of Acupuncture Research
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• v.21 no.4
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• pp.65-73
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• 2004

Objective: This study was designed to compared the effect of general acupuncture on degenerative arthritis of knee joint with 8 constitution acupuncture by Visual Analogue Scale(VAS). Methods: VAS was used for this research, with the pain indicator of 10 and 0 which represents a pain of first visit and a status of no pain respectively. Two groups, consisting of 40 patients, was randomly allocated for this research. SPSS(Statistic Program for Social Science) 10.0 for window was used for a statistical analysis. Independent T-test and Mann Whitney U test was performed to evaluate the improvement of each group by the treatment number and to compare that of two groups. Results: As a result of the comparison analysis between two groups after 20th treatment, the improvement of subjective symptoms in 8 constitution acupuncture group was shown more effective than that in general acupuncture group, while, After 10th treatment, there was no significant difference between two groups in VAS. Conclusion: It is suggested that the effect of 8 constitution acupuncture should be significantly different from that of general acupuncture on degenerative arthritis of knee joint. Further study is needed to confirm the effectiveness of 8 constitution acupuncture.

• Korean Journal of Adult Nursing
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• v.24 no.5
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• pp.509-519
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• 2012

Purpose: This retrospective study was designed to examine the frequency of unplanned extubation, and to identify the related factors of unplanned extubation in medical intensive care unit patients. Methods: Data were collected from medical records of patients who received intubation in a medical intensive care unit. One hundred eighteen patient charts were selected for the study. The Patient Severity Classification Scale and unplanned extubation risk factors were examined. Data were analyzed with descriptive statistics, $x^2$-test, Fisher's exact test and Mann-Whitney U test. Results: The incidence of unplanned extubation was 11 (9.32%) out of 118 patients who had undergone intubation. There were statistically significant differences between the unplanned extubation and work shift ($x^2$=61.52, p=.001), ventilation mode (p=.001), number of days of ventilator application (U=366.00, p=.038) and administration of sedatives (p=.025). Conclusion: Unplanned extubation is affected by the following variables: a) whether a nurse is in night shift, b) whether ventilation is mandatory, c) duration of ventilation use and d) administration of sedatives.

• Journal of Korean Academy of Nursing
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• v.37 no.7
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• pp.1073-1079
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• 2007

Purpose: The purpose of this study was to identify the effects of a smoking cessation program on the amount of smoking and nicotine dependence and the self-efficacy of smoking cessation for smoking workers. Methods: The total number of subjects was 38 smokers and was divided into two: 16 smokers were placed in the experimental group and 22 in the control group. A nonequivalent control group pretest-posttest design was used. The smoking cessation program consisted of two sessions and was implemented for two hours daily for five days. Data was analyzed by using the SPSS/WIN 11.0 program with $X^2-test$, t-test or Mann-Whitney U and ANCOVA. Results: After the treatment, those belonging to the experimental group showed a significantly decreased amount of smoking, a decreased nicotine dependency and increased self-efficacy compared to the control group. Conclusion: The smoking cessation program was effective for diminishing the amount of smoking, decreasing nicotine dependence and improving self-efficacy. Therefore, this program is recommended as a smoking cessation strategy for adult smokers.

• Bulletin of the Korean Mathematical Society
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• v.31 no.2
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• pp.237-242
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• 1994

One of the most well-known geometric lattices is a partition lattice. Every upper interval of a partition lattice is a partition lattice. The whitney numbers of a partition lattices are the Stirling numbers, and the characteristic polynomial is a falling factorial. The set of partitions with a single non-trivial block containing a fixed element is a Boolean sublattice of modular elements, so the partition lattice is supersolvable in the sense of Stanley [6]. In this paper, we rephrase four results due to Heller[1] and Murty [4] in terms of matroids and give several characterizations of partition lattices. Our notation and terminology follow those in [8,9]. To clarify our terminology, let G, be a finte geometric lattice. If S is the set of points (or rank-one flats) in G, the lattice structure of G induces the structure of a (combinatorial) geometry, also denoted by G, on S. The size vertical bar G vertical bar of the geometry G is the number of points in G. Let T be subset of S. The deletion of T from G is the geometry on the point set S/T obtained by restricting G to the subset S/T. The contraction G/T of G by T is the geometry induced by the geometric lattice [cl(T), over ^1] on the set S' of all flats in G covering cl(T). (Here, cl(T) is the closure of T, and over ^ 1 is the maximum of the lattice G.) Thus, by definition, the contraction of a geometry is always a geometry. A geometry which can be obtained from G by deletions and contractions is called a minor of G.

• Archives of Plastic Surgery
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• v.35 no.4
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• pp.355-359
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• 2008

Purpose: Oncostatin M(OSM) has been known as a role in fibrosis and anti-inflammatory effects of various organs and tissues. Although there have been a number of studies which are focused on the roles and mechanisms of OSM, there are few reports on its effects in chronic wound healing. The purpose of this study is to evaluate the effects of OSM in wound healing activities of dermal fibroblasts of chronic wound in vitro. In particular, this study is focused on cell proliferation and synthesis of collagen and glycosaminoglycan(GAG), which are the major components of the extracellular matrices, of diabetic fibroblasts. Methods: Fibroblasts were isolated from excess skin that was obtained from diabetic foot ulcer patients who underwent debridement. The isolated fibroblasts were cultivated in presence of OSM(100 ng/mL). Cell proliferation, collagen synthesis and GAG levels were compared. Results: All the components tested in this study increased in OSM treatment group. In particular, collagen and GAG synthesis demonstrated statistically significant increases(p<0.05 in the Mann-Whitney U-test). Conclusion: These results indicate that OSM increases wound healing activities of dermal fibroblasts of chronic wound in vitro.

• The korean journal of orthodontics
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• v.51 no.4
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• pp.241-249
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• 2021

Objective: This study aimed to evaluate the volume, amount, and localization of root resorption in the maxillary first premolars using micro-computed tomography (micro-CT) after expansion with four different rapid maxillary expansion (RME) appliances. Methods: In total, 20 patients who required RME and extraction of the maxillary first premolars were recruited for this study. The patients were divided into four groups according to the appliance used: mini-implant-supported hybrid RME appliance, hyrax RME appliance, acrylic-bonded RME appliance, and full-coverage RME appliance. The same activation protocol (one activation daily) was implemented in all groups. For each group, the left and right maxillary first premolars were scanned using micro-CT, and each root were divided into six regions. Resorption craters in the six regions were analyzed using special CTAn software for direct volumetric measurements. Data were statistically analyzed using Kruskal-Wallis one-way analysis of variance and Mann-Whitney U test with Bonferroni adjustment. Results: The hybrid expansion appliance resulted in the lowest volume of root resorption and the smallest number of craters (p < 0.001). In terms of overall root resorption, no significant difference was found among the other groups (p > 0.05). Resorption was greater on the buccal surface than on the lingual surface in all groups except the hybrid appliance group (p < 0.05). Conclusions: The findings of this study suggest that all expansion appliances cause root resorption, with resorption craters generally concentrated on the buccal surface. However, the mini-implant-supported hybrid RME appliance causes lesser root resorption than do other conventional appliances.

• Quality Improvement in Health Care
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• v.28 no.2
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• pp.2-13
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• 2022

Purpose:This study aimed to identify the effect of work interruption that influenced workload and perception of patient safety culture on ward nurses. Methods: Participants were 184 ward nurses, with more than 12 months of work experience, from two tertiary hospitals in S city. A descriptive correlational study design was used. Collected data were analyzed using descriptive statistics, t-test, ANOVA, Mann-Whitney U test, Kruskal-Wallis test, Pearson's correlation, and hierarchical multiple regression analysis via SPSS version 27.0. Results: The results showed that general wards nurses had a higher degree of work interruption (t=5.632, p<.001) and workload (t=3.603, p<.001) compared to comprehensive nursing care service wards nurses. More interruption in nursing work caused more burden on work (γ=.440, p<.001) and led to lesser perception of patient safety culture (γ=- .199, p=.007). Finally, the regression analysis showed that work interruption had a statistically significant relevance on nurses' workload (F=20.582, p<.001) and perception of patient safety culture (F=8.792, p<.001). Conclusion: To alleviate ward nurses' work interruption and decrease the negative effect on workload and perception of patient safety culture, it is necessary to mediate nurse staffing level and the number of assistants and utilize the environment.