Purpose: The salesperson, the core of the operating activities, plays the role of connecting the inside and outside of the company, representing the company to the consumer and identifying and responding to the customer's needs. The department store industry is the most representative retail industry in South Korea, and competition among its peer group and industry is intensifying, requiring differentiated service sales activities and performance from its employees. This study divided the sales force system into activity control(process-oriented control) and output control(performance-oriented control) and verified the differential impact on the job attitude of the salesperson (e.g., job satisfaction and burn-out), respectively. In addition, the effect of job satisfaction and burn-out of the salesperson on the job performance were checked. Research design, data, and methodology: The survey was conducted on 200 sales people working at five branch stores of Hyundai department store in Seoul, and 194 of them were analyzed. The reliability and validity of the variables were analyzed and hypotheses were verified through the SEM. Results: Results have shown that activity control has a greater impact on burn-out compared to output control, and output control has a greater impact on job satisfaction compared to activity control. It has been shown that the salesperson's burn-out does not affect sales performance, but that job satisfaction has a positive effect on sales performance. Conclusions: This study examines the effect of sales force management system such as activity control and output control, on the job attitude and sales performance in department stores. According to the results of this research, each of two control systems have a discriminatory effect on the job attitude variables. For the sales managers of department store, it is recommended to increase the efficiency of sales management by increasing the use of outcome control compared to activity control.
Nine male rats in which 90% or more of the hippocampal tissue was removed through a small hole made in the neocortex at the boundary between the parietal and the occipital lobes (hippocampal group), 3 male rats with similar neocortical damage alone (operated control group), and 9 normal control male rats (normal control group) were prepared. Their general activity was measured for 48 hours in an activity cage by recording the number of beams they interrupted. The amount of food and water intake was also checked simultaneously. Results obtained were as follows: 1. The general activity of the hippocampal group was 2 to 3 times as great as that of the operated control or the normal control group. 2. All of the 3 groups demonstrated clear-cut circadian variation of activity, the diurnal and the nocturnal activity being in the ratio 22 : 78. 3. The amount of food and water consumed by the hippocampal group did not differ significantly from that by the opperated control or the normal control group. In the course of the experiment which continued for 3 months the hippocampal group gained weight least among the 3 groups.
This study investigated the isolation hypothesis and the buffer hypothesis of Demand-Control-Support model in relation to activity satisfaction and psychological well-being. The subjects were 300 elderly women participating in productive activity for example paid work, voluntary activity, and grancdhildren care. This research tested four hypotheses concerning the DCS model. Is there support for the isolation hypothesis, such that the lowest level of activity satisfaction is experienced by the elderly women working in an isolation situation(high demand-low control-low support)? Is there support for the isolation hypothesis, such that the lowest level of psychological well-being is experienced by the elderly women working in an isolation situation(high demand-low control-low support)? Is there support for the buffer hypothesis, i. e. interaction between demand, control, and support, indicating a buffering effect of support on the negative impact of high strain on activity satisfaction? Is there support for the buffer hypothesis, i. e. interaction between demand, control, and support, indicating a buffering effect of support on the negative impact of high strain on psychological well-being? Major results of this study were as follows. and were supported. Activity satisfaction and psychological well-being of the elderly women in isolation situation was the lowest among the sample. was supported that family support level buffered the negative impact of high strain on activity satisfaction. But was not supported. Only main effect of demand level was showed on psychological well-being.
The selective migration, attachment and proliferation of periodontal ligament cells are the desired goal of periodontal regeneration therapy. Fibronectin is well known for an attachment protein for dentin surface. Also, Fibroblast growth factor (FGF) is well known to enhance the periodontal regeneration. The purpose of this study was to evaluation the effect of fibronection and FGF on the attachment rate and the cellular activity. Human gingival fibroblast and periodontal ligament cells were cultured from the teeth extracted for non-periodontal reson. Cultured human gingival fibroblast and periodontal ligament cells in vitro were treated with fibronectin and FGF a various dosage and culture times. Cellular activity was examined by MTT assay. The results of this study was demonstrated that cell attachment rate of experimental group was under the control value at 1st, 2nd, 3rd incubation day. But, at 3rd incubation day, attchment value tended to return to the control value. In case of fibronectin alone application, cellular activity was decreased than that of control at 1st, 2nd incubation day. But 3rd day, cellular activity was returned to the control value. The activity of gingival fibroblast in FGF alone application was decreased thatn that of control at each incubation day. But activity of periodontal cell group was increased cell activities at 2nd, 3rd day. Additionally cellular activity of fibronectin & FGF combined application on gingival fibroblast group was similar to control value at incubation day. But activity of periodontal ligament cell group was increased at 2nd, 3rd day compared with control group.This study demonstrated that combined application of fibronectin & FGF induced the selective chemotaxis for periodontal ligament cell in vitro.
To study the factors related to childhood obesity, 75 subjects were selected as an obese group and 75 subjects were selected as a control group according to their obesity index and BMI among the 583 children of 5th and 6th grade in elementary school in Seoul. For each subject, skinfold thickness was measured, information on the characteristics of family, nutrient intake and activity time of the subjects were obtained by questionnarie. The results were summarized as following: 1) Parents' obesity indices of obese group were significantly higher than those of control group(Father's Obesity Index : P<0.01, Mother's Obesity Index : P<0.05). 2) Questions about eating rate and behavior showed that subjects in obese group were significantly faster in their eating rate(p<0.05) and always more eager to eat food(p<0.001) compared to control group. 3) Dietary intake data showed that average daily intake of all the nutrients exceeded Korean recommended dietary allowances for the age group. In female children, fat intakes of obese group were significantly higher than control group(P<0.05). There was no such significant difference in male subjects. 4) Activity time record of subjects reveal that there was a trend for males to spend more time in moderate and high activity and less time in light activity compared to females. Subjects in obese group spent significantly more time for light activity(P<0.001) and significantly less time for moderate activity (P<0.001) compared to subjects in control group. The difference of activity was more pronounced in male subjects. 5) Correlation matrix of the variables showed that obesity index, BMI, and skinfold thickness of the subjects were highly correlated with each other. These indices were positively correlated to parent's obesity indices and the time spent for light activity, but negatively correlated to the time spent for moderate activity. Nutrient intakes were not significantly correlated to obesity indices. Form the results shown above, although both obese and control groups are from high socioeconomic class, obese children tended to come from family with fat parents. They eat fast and are always eager to eat. They tend to eat more fat but are very different from controls in nutrient intake. Obese children are significantly lower in their actinity compared to controls. So, for the prevention and treatment of childhood obesity, it seems to be more important to increase their activity levels.
Background: The purpose of this study was to identify the effects of underwater and ground proprioceptive neuromuscular facilitation lower extremity pattern exercise on trunk control and lower extremity muscle activity of chronic stroke patients. Design: Pretest-posttest design: single blind. Methods: The subjects were 28 patients (experimental group, n=14 or control group, n=14) diagnosed with chronic stroke. The experimental group performed underwater proprioceptive neuromuscular facilitation lower extremity pattern exercise. The control group performed ground proprioceptive neuromuscular facilitation lower extremity pattern exercise. Training was conducted once a day for 30 minutes, five days per week for six. Trunk control was measured using the Trunk Impairment Scale. Lower extremity muscle activity was measured using surface electromyography. Results: As a result of comparison within groups, the experimental and control group showed significant difference for trunk control after the experiment (p<0.05). In comparison between two groups, the experimental group showed more significant difference in trunk control than the control group (p<0.05). In comparison within groups, the experimental group showed significant difference for lower extremity muscle activity after the experiment (p<0.05). In comparison between two groups, the experimental group showed more significant difference in lower extremity muscle activity than the control group (p<0.05). Conclusion: Based on these results, underwater proprioceptive neuromuscular facilitation lower extremity pattern exercise effectively improved the trunk control and lower extremity muscle activity of chronic stroke patients.
Enhanced activity of renin-angiotensin-aldosterone system has been suggested as a cause of the high blood pressure in certain forms of experimental hypertension. In spontaneously hypertensive rats, however, increased activity of the system has not been found, and even suppressed renin angiotensin system has been reported in the spontaneously hypertensive rat. In the present experiments it was attempted to explore the possible alteration of the short loop negative feedback control in the hypertensive rat. Experiments have been done in the anesthetized spontaneously hypertensive rats(SHR) as well as in normotensive Wistar and Sprague Dawley rats as control. Responses of the plasma renin activity to the intravenous L-isoproterenol were dose dependent, in both SHR and normotensive control rats. Hypotensive responses to smaller do sea of L-isoproterenol were more accentuated in SHR than in the normotensive control rats. Angiotensin If given intravenously suppressed plasma renin activity in a dose dependent fashion in both groups. However, these suppressive responses were significantly attenuated in SHR as compared with the normotensive control rats. Treatment with angiotensin I-converting enzyme inhibitor did not correct the attenuated responses of the plasma renin activity to angiotensin II in SHR. Intravenous infusion of arginine vasopressin also produced a dose-dependent suppression of plasma renin activity in both groups. The responses to arginine vasopressin were also significantly attenuated to the normotensive control rats. In the sodium-depleted SHR, arginine vasopressin did not suppress plasma renin activity, whereas the suppressive responses to arginine vasopressin in the normotensive control rats were not different from the untreated control rats. These data suggest that there may be a derangement in the short loop negative feedback control of the renin-angiotensin system in spontaneously hypertensive rat.
Purpose: The purpose of this study was to examine the effects of physical activity on glycemic control among Koreans with type 2 diabetes. Methods: A total of 215 patients with type 2 diabetes (82 male and 133 female) were recruited (mean age = $59.0{\pm}9.7$ years). The amounts of physical activity was assessed using the physical activity scale for elderly (PASE). Fasting blood glucose (FBG), Hemoglobin A1c ($HbA_1c$), and 2 hours post-prandial glucose (2hrPG) were measured. Results: The highest PASE score was housework-related physical activity. However, the amounts of walking was significantly higher in good FBG level (Z = 1.39, p=.041) and the amounts of leisure-time physical activity was higher in good HbA1 and 2hrPG level than in the poor glycemic control group (Z = 2.29, p<.001; Z = 1.99, p=.001). A logistic regression analysis showed that patients with leisure-time physical activity in the top quartile more likely presented with good glycemic control in $HbA_1c$, OR=3.84 (95% Confidence Interval (CI) = 1.65~8.95) and in 2hrPG, OR=4.06 (95%CI = 1.77~9.27), compared to patients in the lowest quartile. Conclusion: Leisure-time physical activity is effective for controlling the glucose levels, especially $HbA_1c$ and 2hrPG among type 2 diabetic patients. It is suggested that health providers need to more focus on providing aggressive recommendations on physical activity considering physical activity patterns by individuals.
This paper describes the role of TQC and its present issues as a management tool, especially in regard of Korean firm's environment. The author, participating in TQC activity for himself, stresses that the introduction and driving programs of TQC activity must include such plans as policy control, reorganization, training, standardization, quality assurance, QC circle activity, office management and auditing. The keypoints and problems in performing these plans are reviewed. And as the future hopeful direction of TQC activity, he remarks that a true recognition of quality control as a management tool in "total" concept and the adoption of industry - wide quality control policy.
This experiments was performed to determine the effects of Gangzitongmaekeum(降脂通脈飮 : GTE) on antioxidation activity and hyperlipidemia induced by hypercholesterolemic diet in mice. The results obtained were as follows : 1. GTE showed a safety in cytotoxicity and toxicity of human fibroblast cells and liver. 2. GTE showed DPPH scavenging activity, superoxide dismutase (SOD)-like activity and inhibitory effect on reactive oxygen species (ROS). 3. GTE treated mice showed body and liver weight decrease, compared to the hyperlipidemia-induced control group. 4. GTE decreased total cholesterol and LDL cholesterol levels significantly, but HDL cholesterol levels not significantly. 5. GTE decreased triglyceride levels significantly. 6. Glucose levels in GTE treated mice significantly decreased compared to the hyperlipidemia-induced control group. 7. Albumin levels in GTE treated mice were similar with the hyperlipidemia-induced control group. 8. The lipophagy in liver compared with the control group tended to be decreased in GTE treated mice. In the change of aorta, the cell was regular and boundary of vessel wall was clear, compared to the hyperlipidemia-induced control group. 9. TBARS levels in GTE treated mice significantly decreased compared to the hyperlipidemia-induced control group. 10. The change of SOD and catalase activity significantly increased compared to the hyperlipidemia-induced control group. 11. ACAT mRNA level and HMG-CoA reductase mRNA levels in GTE treated mice significantly decreased compared to the hyperlipidemia-induced control group. Conclusion : These results suggest that Gangzitongmaekeum is effective in antioxidation activity and dietary hyperlipidemia-induced mice.
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