• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.8
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• pp.5169-5175
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• 2014

The aim of this study was to find the factors related to smoking-cessation among citizens receiving smoking-cessation clinics' services in a public health center in Daejeon metropolitan city. The study subjects were 2,125 participants registered in "smoking-cessation clinic", public health centers in 2007. Frequency analysis, chi-squared test and multiple logistic regression analysis were used to determine the relationships between the success rate of smoking-cessation and the characteristics. The success rate of smoking-cessation during 6 months was 39.8%. Males had a higher rate than females, and people over 65 years of age had a higher rate than those less than 40 years of age. High blood pressure, drinking of more 2 times per week, regular exercise, CO under 10ppm had significantly relationships with the smoking-cessation rate. The other independent variables had no statistically significance with the smoking-cessation success rate. Logistic regression analysis showed that age, number of nicotine patches used and total consultation times had significantly relationships with the smoking-cessation success rate. The total consultation times showed the highest odds ratio than the other significant factors. This study suggests that regular consultations will be the most effective intervention towards maintaining smoking cessation programs of smoking-cessation clinics in public health centers.

• Journal of Dental Anesthesia and Pain Medicine
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• v.20 no.5
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• pp.293-301
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• 2020

Background: The success rate of intubation under direct laryngoscopy is greatly influenced by laryngoscopic grade using the Cormack-Lehane classification. However, it is not known whether grade under direct laryngoscopy can also affects the success rate of nasotracheal intubation using a fiberoptic bronchoscpe, so this study investigated the same. In addition, we investigated other factors that influence the success rate of fiberoptic nasotracheal intubation (FNI). Methods: FNI was performed by 18 anesthesiology residents under general anesthesia in patients over 15 years of age who underwent elective oral and maxillofacial operations. In all patients, the Mallampati grade was measured. Laryngeal view grade under direct laryngoscopy, and the degree of secretion and bleeding in the oral cavity was measured and divided into 3 grades. The time required for successful FNI was measured. If the intubation time was > 5 minutes, it was evaluated as a failure and the airway was managed by another method. The failure rate was evaluated using appropriate statistical method. Receiver operating characteristic (ROC) curves and area under the curve (AUC) were also measured. Results: A total of 650 patients were included in the study, and the failure rate of FNI was 4.5%. The patient's sex, age, height, weight, Mallampati, and laryngoscopic view grade did not affect the success rate of FNI (P > 0.05). BMI, the number of FNI performed by residents (P = 0.03), secretion (P < 0.001), and bleeding (P < 0.001) grades influenced the success rate. The AUCs of bleeding and secretion were 0.864 and 0.798, respectively, but the AUC of BMI, the number of FNI performed by residents, Mallampati, and laryngoscopic view grade were 0.527, 0.616, 0.614, and 0.544, respectively. Conclusion: Unlike in intubation under direct laryngoscopy, in the case of FNI, oral secretion and nasal bleeding had a significant effect on FNI difficulty than Mallampati grade or Laryngeal view grade.

• Korean Journal of Bronchoesophagology
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• v.1 no.1
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• pp.101-108
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• 1995

From 1988 to 1995, 59 patients with laryngotracheal stenosis were operated with resection of stenotic segment and end to end anastomosis in Seoul national university. Among these patients, 36 were tracheal stenosis, 17 were combined lesion of subglottis and trachea and 5 were subglottic stenosis. The success of procedure was determined by stoma closure or decannulation and an overall 89.8% success rate was achieved following 165 procedures. The success rate showed correlation with severity of stenosis and the number of procedures done was related to the site of stenosis. There was no mortality and granulation formation, unilateral vocal cord palsy were the common complication of end to end procedures.

• Journal of Industrial Convergence
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• v.14 no.2
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• pp.15-23
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• 2016

Korea is aging rapidly and unprecedentedly in the world, and the social burden is prospected to be increased rapidly. New business start-up in blue ocean area is boomed in Korea, because sedulousness of people and high household saving rate which are basis of the economic development are getting lower, and propensity of the consumption and debt in household are getting higher. This article is refers that what is success factors of new business start-up in blue ocean through investigating the theoretical concept and the success cases. As a result, the success factors of new business start-up are categorized as environmental factors, strategical factors, organizational factors, personal factors, and factors of growing-up stages. In order not only to identify the success factors, but also to avoid failure, it is important that the basic principle should be followed ; Specifying the objectives, Balancing the fund, Meeting good biz-partners, Analysis of the market and Advice of the experts.

• Clinical and Experimental Reproductive Medicine
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• v.23 no.1
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• pp.61-66
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• 1996

Vasectomy has become a popular method for male sterilization and this, in tum, has been followed by an increase in the number of patients requiring vasectomy reversal. Recently, many authors have reported a high success rate of vasovasostomy using microsurgical techniques. However, a significant discrepancy exist between the anatomical patency rate and pregnancy rate despite improvements in surgical techniques. Number of 420 patients who underwent vasovasostomy by a modified one layer reanastomosis from January 1986 to December 1994 were reviewed. Of the total, Complete follow up were possible in 115 patients. Of the 115 patients, 74 patients were treated by macroscopic reanastomosis, and microscopic technique were applied in 41 patients. Duration of vasal obstruction, gross apperance of vasal fluid, operative method, presence or absence of sperm and sperm granuloma, and results of postoperative semen analysis were analyzed as factors influencing the pregnancy rate. Success rates for patency and for pregnancy were 81% and, 42% respectively. Rate of pregnancy were increased if there were shorter periods of obstruction(<10years), bilateral observation of watery vasal fluid, presence of sperm bilaterally, bilateral presence of sperm granuloma at the vasectomy site, and normal results on postoperative semenalysis. With these results, we can conclude that all factors mentioned may affect the success rate of pregnancy following vasovasostomy.

• Journal of Digital Convergence
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• v.11 no.8
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• pp.127-141
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• 2013

In this study, we analyzed causal relationships between technology orientation and technological performance, between technological performance and commercialization speed on the government -funded R&D projects in 2009 for searching the cause of the big gap between technological success rate and commercialization success rate. In the result, technology orientation affected negatively on the technological performance, but the technological performance affected positively on the commercialization speed. These results mean that low technology oriented projects are easy to reach the selling step of products faster but they are not easy to attain a balanced income and outgo in contrast to the firms' own R&D. we found it was caused by a defect in the government's R&D support and management system.

• Journal of KIISE:Computing Practices and Letters
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• v.16 no.12
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• pp.1224-1228
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• 2010

The existing cluster-based routing protocols have some problems. Firstly, because of selecting cluster head at random, they occur a node concentration problem. Secondly, they have a low reliability for data communication due to the less consideration of node communication range. Finally, data communication overhead is greatly increased because of sending all sensor node information to sink node for constructing clusters. To solve these problems, we in this paper, propose a cluster-based routing protocol using message reception success rate. Firstly, to solve the node concentration problem, we design a cluster head selection algorithm based on node connectivity and devise cluster spliting/merging algorithms. Secondly, to guarantee data communication reliability, we use message reception success rate. Finally, to reduce data communication overhead, we use only neighbor nodes information at both cluster construction and cluster head selection.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.34 no.9
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• pp.1153-1160
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• 2010

The detection algorithm for loss of balance had three main parts: one for processing data, another for constructing an internal model, and a third for detecting the loss of balance. The part related to the internal model is the most important part of the algorithm. The purpose of this study is to evaluate the effect of variables associated with the internal model on the success rate of the algorithm. The internal model depends on the type of linearization adopted and the operating period of the algorithm. The design variables were evaluated by performing sensitivity analysis of the variables of the internal model in order to obtain the success rate of the algorithm. The results showed that the most sensitive variable was the period and the period of 0.3 s yielded the highest success rate of 97.1%. Further, the ranges of the design variables that can facilitate a success rate of over 95% are presented.

• Journal of Chest Surgery
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• v.26 no.1
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• pp.44-46
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• 1993

There are several methods for managing pneumothorax through thoracoscope. Among them, electric cautery of bleb or bulla is very simple to do and can be done through the conventional thoracoscope. It is cosmetically excellent because it needs only incision. It is economically cheap comparing other methods because it does not need staplers or clips and other disposables. However, this method has been controversial for its success rate because of the ability of sealing off the air-leaking from the lung tissue. To evaluate the success rate, 29 cases of pneumothorax treated by electric cautery and instillation of oxytetracyline solution through the thoracoscope were analyzed. Among 29 patients, 18 were male and 11 female ranging 17 to 43 years old. The indications for thoracoscopy were recurrence in 20 cases and persistence in 9 cases. The underlying casuses of pneumothorax were bleb in 10 cases and bulla with bleb or not in 19 cases. Twenty one cases were successful [4%] and 8 cases were failed. The failed 8 cases were explored from 14 to 28 days after thoracoscopy.Six cases were explored through transaxillary minithoracotomy and 2 were done through limited posterolateral thoracotomy. The causes of failure were the necrotic lung tissue occured by excessive electric cautery in 6 cases and the necrotic lung tissue and residual bulla in two cases. In 10 bleb cases, 9 were successful [90.0%]. But in 19 cases of bulla, 12 were successful [63.2%]. In conclusion, the success rate of electric cautery through thoracoscope was 72. 4% and the causes of failure were lung necrosis and residual bulla. The success rate of the bleb cases was higher than that of the bulla cases.

• Journal of Korean Dental Science
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• v.3 no.2
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• pp.12-19
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• 2010

Despite the latest advancement made in its techniques and devices/apparatuses and the resulting rising expectation in the field of dental surgery, apicoectomy performed in the molar teeth remains a technical challenge and lacks evidence substantiated by long-term follow-up studies. This study sought to investigate the treatment outcomes and post-operative success rate in the root-end resected molar teeth accompanied by a high level of surgical risks due to their close proximity to the mandibular canal and maxillary sinus. A total of 68 patients who received treatment at Livingwell Dental Hospital between 2004 and 2010 and underwent apical surgery in the maxillary or mandibular molar area were enrolled in this study. A total of 160 roots collected from 75 molar teeth were subjected to surgical endodontic treatment and subsequently evaluated clinically as well as radiographically. Based on the results of the study, the clinical success rate was found to be 78.8% in cases involving radiological healing. Likewise, 90.7% of the roots recorded a robust clinical survival rate, but with incomplete healing as shown by radiography. The results indicate that the apical procedure involving molar teeth is a prognosis-friendly method that promises positive outcomes and higher success rate based on long-term follow-up observations.