• Korean Management Science Review
• /
• v.20 no.1
• /
• pp.25-36
• /
• 2003

Now that many organizations have invested a tremendous amount of money and efforts to operate Web sites on the Internet, there is a strong demand to understand the effectiveness of such investments. In other words, one of most frequent and important questions about their Web sites is "Will the current Web site management policy be effective enough to have more visitors come to our Web site\ulcorner" In this paper, a system which predicts the degree of user interest in the future to Web sites is constructed. The degree of user interest to a Web site is defined to be the visit counts for the Web site in the system. With higher the visit counts, the related site is considered to be more interesting. However, the figures of the visit counts themselves cannot explain properly the degree of user Interest in the future to the related Web sites (i.e. the effectiveness of the related Web sites). Therefore, the system also uses mechanisms which use the concept of the Moving Averages, which have been used frequently in the stock exchanges. In this paper. two prediction mechanisms are proposed and compared. The first mechanism uses the Golden Cross/the Dead Cross of the Moving Averages, while the second mechanism uses the changes of upward/downward direction of the Moving Averages. Experimental results show that the two prediction mechanisms proposed in this paper predict the degree of user interest in the future to the related Web sites very well in most cases. However, the first one is considered to be better than the second one In the sense that the second one is too much sensitive to the changes of visit counts.it counts.

• YAKHAK HOEJI
• /
• v.54 no.6
• /
• pp.455-460
• /
• 2010

We evaluated the inappropriateness of metformin use in patients with type 2 diabetes and chronic medical conditions to identify the frequency of the prescription metformin in violation of the food and drug administration (FDA) black box warning. We reviewed medical records of 307 outpatients who received metformin at endocrinology department in a hospital setting between January 1, 2005 and August 30, 2009. Of the 307 outpatients, 25 discontinued treatment of metformin due to elevated serum creatinine level (Scr${\geq}$1.5 mg/dl in male, Scr${\geq}$1.4 mg/dl in female), cancers, and/or liver disease. 5 were lost to follow-up. 89 (29.0%) of the patients had cardiovascular disease, 54.1% for hypertension, 9.8% for liver disease, and 60 (20.8%) for chronic kidney disease. 12 patients (3.9%) with chronic kidney disease and/or elevated serum creatinine level, and 1 patient (0.3%) with lactic acidosis were contraindicated to metformin use. Metformin should be avoided in 7 outpatients (2.3%) with active hepatitis and 1 patient (2.6%) with liver cirrhosis. Of the 307 outpatients, 13 (4.2%) patients who received metformin at the first visit and 16 (8.7%) patients who received metformin at the last visit violated to black box warning. 8 (2.6%) of the patients were in precautionary conditions to metformin use. Adjusted mean difference of serum creatinine was -0.16 mg/dl [95% CI: -0.22 to -0.11 (p<0.05)] and adjusted mean difference of alanine aminotransferase was 4.46 IU/l [95% CI: 2.47 to 6.44 (p<0.05)] between the first visit and the last visit. Critical number of elderly patients who are at the high risks of drug-disease and drug-laboratory interaction is exposed to the inappropriate metformin use in violation of black box warning. The periodic evaluation of metformin use and monitoring prescription through drug utility review (DUR) system is needed to improve patients' safety and to reduce adverse drug events.

• Journal of the Korea Computer Industry Society
• /
• v.4 no.12
• /
• pp.1093-1102
• /
• 2003

The dynamic nature of the World Wide Web challenges Search engines to find relevant and recent pages. Obtaining important pages rapidly can be very useful when a crawler cannot visit the entire Web in a reasonable amount of time. In this paper we study way spiders that should visit the URLs in order to obtain more “important” pages first. We define and apply several metrics, ranking formula for improving crawling results. The comparison between our result and Breadth-first Search (BFS) method shows the efficiency of our experiment system.

• Journal of Korean Academic Society of Home Health Care Nursing
• /
• v.7 no.1
• /
• pp.26-38
• /
• 2000

The purpose of this study was to estimate home care nursing cost for the patient with Cerebrovascular Disease based on a bundle of home care nursing services This study was conducted through four steps. The first step was to investigate home care nursing activities that were offered to the patient with Cerebrovascular Disease(CD) by home care nurse. The second step was to investigate the time spent on home care nursing service and to calculate labor and manufacturing cost. The third step was to calculate home care nursing cost per minute. And at the fourth step, home care nursing cost for a patient with Cerebrovascular Disease based on a bundle of home care nursing service was calculated. The results of the study were as follows: 1) The number of direct home care nursing activities for the patient with CD was 108, and the time of each activity was spent from 1 to 10 minutes. 2) Average time per visit was 51 minute, and the firs visit time were spent 1.6 times higher than 2nd visit time. 3) Nursing cost per minute(cost per visit ${\\}\;22,565\;\div\;$ average time per visit 51 minutes) was ${\\}\;442$. The cost per visit was calculated on Basic visiting cost(nurse's labor cost ${\\}\;15,760$ + management cost ${\\}\;6,805$) divided by average time per visit(51 minutes). 4) Home care nursing cost to the patient with CD based on bundle of home care nursing service was consisted of basic home care nursing cost, the cost of a bundle of service practiced on visit. and transportation fee. Basic home nursing cost(the time spent on basic home nursing service 20 minutes ${\times}$ nursing cost per minute ${\\}\;442$) was ${\\}\;8,840$. The cost of the bundle of home care nursing services to the patient with CD was calculated as self care ${\\}\;2.898$, Tracheostomy care ${\\}\;10,166$, immobility care ${\\}\;6,188$, sore care ${\\}\;6,188$. Foley care ${\\}\;6,630$, and Levin tube or Gastrostomy care ${\\}\;7.514$. Transportation fee which was composed of the labor cost for transportation(${\\}\;5,122$) and the car management cost(${\\}\;3.876$) was ${\\}\;8,998$. Home care nursing cost to the patient with CD based on bundle of home care nursing services consisted of basic home care nursing cost, the cost of a bundle of service practiced on visit, and transportation fee. It will contribute to improve quality of home care service, because of giving appreciate incentives to home care nurses. And it will be more efficient than current cost of hospital based home care. But it need to management than calculation of the current fee-for-services of home care.

• Journal of Digital Convergence
• /
• v.15 no.8
• /
• pp.161-168
• /
• 2017

The purpose of this study is to investigate the effect of restaurant selection factors on reliability and revisit intention. The results of empirical analysis were as follows: First, the factors influencing the intention to visit the restaurant were the physical environment, service, price, location, reputation, cleanliness, It is confirmed that consumers are willing to visit again if their satisfaction is high because they choose general consumers considering kindness and taste. Second, trust is found to affect re - visit intention and it can be judged that store faith is actively considering return visit through consumer 's belief. Third, it was found that the factor of selecting the restaurant business influenced the intention to visit again according to the trust. When the customer chooses according to the restaurant business standard and satisfies the trust, it intends to increase the intention to visit again. The results of this study are as follows. First, it is found that the factors of restaurant selection and trust affect the revisit intention of restaurants, and it is meaningful to provide theoretical and strategic implications.

• Journal of Dental Anesthesia and Pain Medicine
• /
• v.19 no.6
• /
• pp.369-378
• /
• 2019

Background: Behavior guidance is a technique used to subdue inappropriate behavior by establishing communication that meets the needs of a child. This study aimed to measure the effectiveness of a mobile app (Little Lovely Dentist) compared to the tell-show-do (TSD) technique in managing anxious children during their first dental visit. Methods: Fifty children (30 boys and 20 girls) without any past dental experience, aged from 7 to 11 years, were randomly allocated into either the dental app group or the TSD group. The pre- and post-operative anxiety of children who underwent prophylactic cleaning was assessed both physiologically and subjectively using a heart rate measurement and the RMS pictorial scale, respectively. Results: The intragroup comparison of heart rate and RMS scores for children allocated to the dental app group was statistically significant (P value ≤ 0.001). However, a significant reduction only occurred in the RMS scores, but not the heart rate measurements, in the TSD group. Conversely, there was an increase in heart rates in the TSD group. Conclusion: Educating the child prior to a dental procedure using a smartphone application such as Little Lovely Dentist can significantly alleviate the anticipatory anxiety and engage children in dental treatment during their first visit.

• The Korean Journal of Pain
• /
• v.30 no.3
• /
• pp.214-219
• /
• 2017

Background: As herpes zoster progresses via postherpetic neuralgia (PHN) to well-established PHN, it presents its recalcitrant nature to the treatment. At this point, the well-established PHN is fixed as a non-treatable, but manageable chronic painful neuropathic disorder. This study evaluated the incidence of complete relief from PHN according to PHN duration at their first visit, and the other factors influencing it. Methods: A retrospective chart review was performed on patients with PHN at a university-based pain clinic over 7 years. The responders were defined as patients who had complete relief from pain after 1 year of active treatment. Age, sex, PHN duration at their first visit, dermatomal distribution, and underlying disorders were compared in the responder and non-responder groups. Responders were also compared according to these factors. Results: Among 117 PHN patients (M/F = 48/69), 35 patients (29.9%) had complete relief from PHN. Mean ages were $64.3{\pm}10.6$ and $66.9{\pm}10.7$ years, numbers of male to female patients were 11/24 and 37/45, and mean durations of PHN at their first visit were $8.5{\pm}6.3$ and $15.3{\pm}10.7$ months in the responder and non- responder groups, respectively. In addition, PHN patients who visited the clinic before 9 months showed a better result. Dermatomal distribution and underlying disorders did not show significant differences. Conclusions: Almost 30% of PHN patients received complete relief. Those who sought treatment in a pain clinic before 9 months received a better result.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.35 no.4
• /
• pp.700-708
• /
• 2008

The aim of this study was to recognize guardians' desire and awareness on sedation, and to guide guardians' satisfaction and cooperation. Followings are the conclusion : 1. Information supply about conscious sedation were restrictive and insufficient. 2. Both first-visit guardians and guardians of sedated patients were interested in decrease of dental fear. 3. Both first-visit guardians and guardians of sedated patients were satisfied with psychological improvement better than behavior improvement. Therefore, decrease of patients'ear and anxiety was essential. 4. Both first-visit guardians and guardians of sedated patients didn't recognize accurate safety of conscious sedation.

• Journal of Oral Medicine and Pain
• /
• v.41 no.4
• /
• pp.169-179
• /
• 2016

Purpose: This study is designed to analyse etiology and bone pattern at the first visit using cone-beam computed tomography (CBCT) and to evaluate the treatment outcome of conservative treatment in temporomandibular disorder (TMD) patients with rheumatoid arthritis (RA). Methods: One hundred condyles in 50 subjects with RA were chosen among the patients who presented to the Department of Oral Medicine of Pusan National University Dental Hospital, diagnosed as TMD. Condylar bone changes were classified by normal, erosive bony change, proliferative bony change and combined group (erosive bony change+proliferative bony change). They were treated conservatively with physical therapy, medication, behavioral therapy and/or occlusal stabilizing splint therapy. After 3 months on average, patients were re-evaluated with regards to subjective symptoms and the clinical findings were investigated. Results: TMD patients with RA have behavioral contributing factors such as parafunctional habit. The results that analyse bone pattern at the first visit using CBCT proliferative bony changes group (32.6%) were more common than erosive bony changes group (15.2%). In comparison between unilateral and bilateral bony change in temporomandibular joint, the ratio showed no significant differences. After 3 months of conservative treatments, pain, noise, limitation of motion (LOM) were markedly improved regardless of occlusal splint therapy. However only LOM was significantly improved through occlusal splint therapy during 3 months. Conclusions: TMD patients with RA had similar behavioral contributing factors and characteristics of CBCT images shown in general TMD patients and also similar response to conservative treatment so it is difficult to differentiate. Therefore when TMD patients show symptoms corresponding to clinical diagnostic criteria of RA at the first visit, serological testing should be conducted and through this, early diagnosis and treatment of RA should be initiated.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• v.26 no.3
• /
• pp.165-175
• /
• 2015

Objectives : The purpose of this study was to investigate changes in child and adolescent outpatients at a university hospital in Daegu from 2004 to 2013. Methods : The subjects were first-visit patients under 18 years old, who visited Dongsan Medical Center, Keimyung University, from January 1, 2004 to December 31, 2013. Computerized medical records of 2,738 patients (male 1,906, female 832) were reviewed. Results : The ratio of male to female was 2.3 : 1 in the period of study. The most prevalent age category was 7-9 years. The mean age was $10.12{\pm}4.68$ years ($9.84{\pm}4.59$ years in males, $10.76{\pm}4.81$ years in females). The ratio of child and adolescent patients to total outpatients was 27.0%. The most common diagnostic category was the attention-deficit hyperactivity disorder (ADHD) group, followed by the mental retardation (MR) group. In males, the ADHD, MR, communication disorder groups were more prevalent, but in females, the MR, ADHD, depressive disorder groups were more prevalent. Conclusion : The female to male ratio and total mean age were on the rise. The ADHD group was the most prevalent and the depressive disorder group was also on the rise in this period.