1.A Study on the Anlysis of Well-water in a Suburban Area in Taegu City.
Korean Journal of Preventive Medicine 1974;7(2):327-332
No abstract available.
Daegu*
2.Torque and mechanical failure of orthodontic micro-implant influenced by implant design parameters.
Korean Journal of Orthodontics 2007;37(3):171-181
OBJECTIVE: The present study was aimed at an analytical formulation of the micro-implant related torque as a function of implant size, i.e. the diameter and length, screw size, and the bony resistance at the implant to bone interface. METHODS: The resistance at the implant to cancellous bone interface (S(can)) was assumed to be in the range of 1.0-2.5 MPa. Micro-implant model of Absoanchor (Dentos Inc. Daegu, Korea) was used in the course of the analysis. RESULTS: The results showed that the torque was a strong function of diameter, length, and the screw height. As the diameter increased and as the screw size decreased, the torque index decreased. However the strength index was a different function of the implant and bone factors. The whole Absoanchor implant models were within the safe region when the resistance at the implant/cancellous bone (= S(can)) was 1.0 or less. CONCLUSION: For bone with S(can) of 1.5 MPa, the cervical diameter should be greater than 1.5 mm if micro-implant models of 12 mm long are to be placed. For S(can) of 2.0 MPa, micro-implant models of larger cervical diameter than 1.5 mm were found to be safe only if the endosseous length was less than 8 mm.
Daegu
;
Torque*
3.Comparison of Double Maddox Rod Test and Bagolini Striated Lens Test for Superior Oblique Palsy.
Si Eun LEE ; Sook Hyun YOON ; Sook Young KIM
Journal of the Korean Ophthalmological Society 2016;57(5):837-842
PURPOSE: We compared the results of the double Maddox rod test (DMRT), which is commonly performed in clinics as a subjective torsion test for superior oblique muscle palsy, with those of the Bagolini striated lenses test (BSLT) in a least dissociating condition to predict the cyclofusional capacity. METHODS: Twenty-five patients with acquired superior oblique muscle palsy were tested for degree of subjective torsion with DMRT and BSLT in primary position and down-gaze in Daegu Catholic University Hospital from May 2014 to March 2015. DMRT was performed in a dark room and BSLT in a lighted room. RESULTS: Mean extorsional degree in primary position was 3.40 ± 2.58° on DMRT and 1.88 ± 2.92° on BSLT, a significant difference (p = 0.000). In down-gaze, mean extorsional degree was 4.16 ± 2.90° with DMRT and 2.40 ± 2.90° with BSLT (p < 0.001). CONCLUSIONS: The subjective torsional measurement with BSLT was significantly smaller than with DMRT, and the cyclofusional capacity in patients with acquired superior oblique palsy was 1.5° in primary position and 1.8° in down-gaze. BSLT is helpful in addition to DMRT and fundus photograph for the evaluation of cyclotropia in patients with superior oblique muscle palsy, and this test may yield clinically important information for predicting the cyclofusional capacity of patients with superior oblique muscle palsy.
Daegu
;
Humans
;
Paralysis*
4.A Survey on Breakfast of Workers in Daegu Area.
Sung Hee CHO ; Jeong Hee JANG ; Tae Youl HA ; Kyeung Soon LEE ; Mi Kyoung KIM ; Jung Sook SEO
Korean Journal of Community Nutrition 2004;9(6):673-682
Breakfast is an important factor for health status of people. This study was carried out to investigate the dietary life related to breakfast of workers and to develope some nutritional convenient diets for the workers. The collected data were consisted of items about general characteristics of the subjects, breakfast pattern, factors affecting on breakfast and opinions on convenient foods. The subjects were classified into labor workers (n = 202) and office workers (n = 227) aged from twenties to fifties. The rate of skipping breakfast in workers was 31.5% and higher according to the increase of age. Their favorite style of breakfast was mostly Korean traditional diets, but only 38.1% of the subjects had cooked rice as breakfast. The main reason for skipping breakfast was that they had no time for it. But 65.4% of total workers had experiences of using convenience diets. They had these kinds of diets because of convenience. These results suggest that recipe development of convenient breakfast is very important for the good dietary life of the workers.
Breakfast*
;
Daegu*
;
Diet
5.Fatigue resistance of dental implants treated with laser method.
The Journal of Korean Academy of Prosthodontics 2006;44(6):734-739
STATEMENT OF PROBLEM: Many surface processing methods of dental implant have been developed, the laser processing is one of them. PURPOSE: This study was to investigate in vitro the fatigue resistance of implants treated with laser method(CSM implant, CSM Company, Daegu, Korea). MATERIAL AND METHODS: Fatigue tests of 23 laser treated CSM implant(CSM Company, Daegu, Korea) were conducted using Instron 8871 (Load cell, 5 kN, Instron Co., England), according to ISO 14801 (2003), RESULTS: From 300 N, each specimens were not fractured and withstood until more than 5,000,000 cycle. CONCLUSION: Within the limits of this in vitro study, implants treated with laser method (CSM implant, CSM Company, Daegu, Korea) have had enough rigidity and fatigue resistance to use clinically with reliance.
Daegu
;
Dental Implants*
;
Fatigue*
6.Papineau Technique for Infected Nonunion of Tibia: Clinical Analysis
Hae Young LEE ; Young Duk CHOI
The Journal of the Korean Orthopaedic Association 1989;24(3):786-793
Infected nonunion continues to be a major therapeutic challenge. Twenty-five cases of infected nonunion of tibia were trested by Papineau's cancellous bone graft at Department of Orthopedic Surgery, Taegu Medical Center from Jan. 1981 to Dec. 1987. The results were as follows. 1. Decortication, sequestrectomy and cancellous bone graft were performed simultaneously in every case. 2. Osseous union and eradication of infection were obtained at average 8 months.
Daegu
;
Orthopedics
;
Tibia
;
Transplants
7.A Comparative Study on Life Satisfaction between Older Population in Institutions and Homes.
Journal of Korean Academy of Nursing 2000;30(7):1709-1717
This research was performed to compare life satisfaction of the elderly in institutions and homes. The scores of life satisfaction were collected from 74 elders in 5 institutions and 71 elders at their homes in Daegu and Gyungbuk province during October 1st to December 1st, 1999. The results were summarized as follows: 1. The elders in institutions revealed lower scores in life satisfaction than the elders at homes, but not statistically significant. 2. In institutions, the general characteristics which affected life satisfaction was health status and monthly income. For elderly at home, the general characteristics which affected life satisfaction scores were educational level and health status. According to the result of this research, the health-care and economic support must be considered as main factors in the nursing strategy for the elders. The results should be considered carefully when applied to the entire older population because it was conducted on a segment of the elderly population in Korea. And various social activities and nursing programs for the aged are required.
Aged
;
Daegu
;
Humans
;
Korea
;
Nursing
8.Comparison of salty taste assessment, high-salt dietary attitude and high-salt dietary behavior by stage of behavior change among students in Daegu.
Hye Hyun HWANG ; Eun Kyung SHIN ; Hye Jin LEE ; Tae Yoon HWANG ; Young Ae KIM ; Yeon Kyung LEE
Journal of Nutrition and Health 2016;49(1):36-42
PURPOSE: This study was conducted for comparison of salty taste assessment, salty taste preference, high-salt dietary attitude, and high-salt dietary behavior by stages of behavior change among school-aged children and adolescents. METHODS: A total of 1,595 students (1,126 school- aged children, 469 adolescents) from 43 elementary schools and 17 middle and high schools in Daegu were tested using salty taste kits and surveyed using questionnaires on stages of behavior change, high-salt dietary attitude, and behavior. RESULTS: Adolescents showed a significantly higher result for salty taste assessment than school-aged children (p < 0.01). In salty taste assessment, the students of pre-contemplation stage (n = 498) and contemplation stage (n = 686) showed higher scores than students of action stage (n = 351) and maintenance stage (n = 60). Regarding the salty taste preference, students of maintenance stage preferred the lower two samples (0.08%, 0.16%) and students of pre-contemplation stage preferred the higher two samples (0.63%, 1.25%). High-salt dietary attitude scores and dietary behavior scores were highest for students of pre-contemplation stage and were lowest for students of maintenance stage. CONCLUSION: Salty taste assessment, high-salt dietary attitude, and high-salt dietary behavior were significantly different by stages of behavior change among school-aged children and adolescents. This study suggests the need for examination of the stages of behavior change before nutrition education for effective education.
Adolescent
;
Child
;
Daegu*
;
Education
;
Humans
9.Blood Lead and ZPP Concentrations of Underground Parking Lot Workers.
Tae Heum JUNG ; Chang Yoon KIM ; Jong Hak CHUNG
Yeungnam University Journal of Medicine 1998;15(2):224-236
A study was conducted to investigate the blood lead and zinc protoporphyrin(ZPP) concentrations of the underground parking lot workers who exposed to vehicular exhaust aerosols which contained lead. The blood samples were collected from 25 study subjects of underground parking lot and from 33 controls in Taegu, from July to October, 1997. And also the related factors to the blood lead and ZPP concentrations were investigated. Blood lead concentration and ZPP concentration were measured by flameless furnace atomic absorption spectrophotometer (IL.551) and hemetofluorometer, respectively. The mean blood lead concentrations of study subjects and controls were 23.10+/-20.77microgram/dl and 12.99+/-12.71microgram/dl, respectively(p<0.05), and the mean blood ZPP concentrations of study subjects and controls were 40.72+/-9.46microgram/dl and 38.21+/-10.97microgram/dl, respectively. No significant correlations were observed between the blood lead concentration of the study subjects and their job duration and between blood ZPP concentration of the study subjects and their job duration. There were no statistically significant differences in the blood lead concentration and the blood ZPP concentration of smokers and nonsmokers. In multiple regression analysis on blood lead concentration of the study subjects and controls, occupation was a only significant dependent variable. In case of bood ZPP concentration, age was a only significant dependent variable in the study subjects and controls.
Absorption
;
Aerosols
;
Daegu
;
Occupations
;
Zinc
10.Blood Lead Concentration of Taxi Drivers in Taegu, Korea.
Kun SAKONG ; Pock Soo KANG ; Jong Hak CHUNG
Korean Journal of Preventive Medicine 1990;23(3):255-261
Taxi drivers are exposed to vehicular exhaust aerosols which are a major source of atmospheric lead pollution in Korea where lead additives are incorporated in petrol. To investigate the blood lead concentration, their correlation factors and influences on taxi drivers, samples were collected from 90 taxi drivers who were living in the Taegu City, during August, 1989. Blood lead concentration was estimated by the atomic absoption spectrophotometer (IL.551) equipped with flameless furnace atomizer (IL.665). The results were analyzed statistically and compared with control group were 26.34 +/- 6.53 microgram/dl and 20.77 +/- 4.80 microgram/dl respectively (p<0.01). No significant correlation was observed between the blood lead concentration of taxi drivers and driver career (r=0.093). There were no difference of statistical significance in the blood lead concentration of smokers and nonsmokers.
Aerosols
;
Daegu*
;
Korea*
;
Nebulizers and Vaporizers