Objectives: The purpose of this study is to improve awareness of male dental hygiene by investigating the dentists' perception of male dental hygienists' image and work performance in clinical practice. Methods: The participants were 102 dentists who agreed to participate in this study. They completed- a self-administered questionnaire survey available on a website. The questionnaire comprised 26 questions, with each item scored on a 5-point Likert scale. Results: The male dentists perceived that with an increase in the experience of male dental hygienists would be willing to pay more than for female dental hygienists. In the case of male dentists, male dental hygienists perceived that they would feel stressed in a women-centered work environment. Additionally, it was found that dentists who had experience working with Male dental hygienists responded more positively to work performance awareness than had no experience (p<0.05). Conclusions: Active employment of male dental hygienists in clinical practice, could positively change dentists' perception of male dental hygienists.
The purpose of this research was to obtain information about the performance of breast-feeding by employed mother and the supportive accommodation in the work place. The survey questionnaire was answered by 323 employed mothers who had child over the six months and visited the pediatric clinic in the hospital and the public health center in Seoul. The results were as follows : 1. Of the 323 employed mothers, 4.7% of mothers performed breast-feeding, 58.3% of mothers did artificial-feeding and 37% of mothers did mixed-feeding during the six months after birth of baby. 2. The characteristics of employed mothers found to be related breast-feeding include Age, Education, Number of Baby, Type of Delivery, Place of Delivery, Obtaining Information On Breast-Feeding. 3. The performance of breast-feeding during the work was different significantly according to the mother's job(medical and non-medical) and the method of feeding. 4. The reasons why they could not perform the breast-feeding include not enough time because of working(80.4%) and lack of knowledge about breast-feeding method with combining employment. 5. The results showed that the rest supports of the work environment was insufficient to perform breast-feeding in he workplace except maternal leave.
This study was conducted to analyze the prevalence of non-performance of mammography, and associated factors, among postmenopausal women. This analytical, exploratory, cross-sectional study, of a domicile population inquiry type, was performed in the municipality of Maringa, Parana, Brazil. A total of 456 women were interviewed, aged 45 to 69 years, who presented with natural menopause and cessation of menstruation for at least twelve months. Statistical associations were found between the non-performance of mammography and schooling of less than seven years, paid employment, sedentary lifestyle, smoking, the non-use of hormone replacement therapy, not having consulted a doctor in the previous year, not having consulted a gynecologist, lacking a family history of breast cancer, not having performed the Papanicolaou test, not having performed clinical breast examination, and not having difficult access to health services. After logistic regression analysis, not performing mammography was associated with reports of a fair or bad health status. The study data revealed factors "responsible" for the non-performance of mammography, and the results should contributing to improvement/enhancement of healthy behaviour of Brazilian women in the post-menopausal phase.
KSII Transactions on Internet and Information Systems (TIIS)
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v.10
no.11
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pp.5305-5321
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2016
In wireless communication, the multiple-input multiple-output (MIMO) system is a well-known approach to improve the reliability as well as the data rate. In MIMO systems, channel state information (CSI) is typically required at the receiver to detect transmitted signals; however, in practical systems, the CSI is imperfect and contains errors, which affect the overall system performance. In this paper, we propose a novel maximum likelihood (ML) scheme for MIMO systems that is robust to the CSI errors. We apply an optimization method to estimate an instantaneous covariance matrix of the CSI errors in order to improve the detection performance. Furthermore, we propose the employment of the list sphere decoding (LSD) scheme to reduce the computational complexity, which is capable of efficiently finding a reduced set of the candidate symbol vectors for the computation of the covariance matrix of the CSI errors. An iterative detection scheme is also proposed to further improve the detection performance.
Journal of Korean Society of Industrial and Systems Engineering
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v.46
no.4
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pp.107-115
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2023
Mid-sized manufacturing companies, which account for 0.7%(5,480 companies), 13.8%(1.169 million persons) of total employment, and 15.7% of total sales, have recently experienced a lot of difficulties in management activities due to the impact of COVID-19, the U.S.-China trade war, and the collapse of global supply chains. To overcome this, revitalization of quality management activities to strengthen corporate competitiveness is emerging as an urgent task. In order for these quality management activities to achieve their intended purpose, the positive leadership of corporate managers is very important above all else. There have been many studies related to positive leadership, but most have focused on charismatic leadership and transformational leadership centered on large companies or small and medium-sized enterprises. Therefore, this study aims to present ways to strengthen the leadership of managers by empirically analyzing how the positive leadership of managers of mid-sized manufacturing companies, which was relatively under-researched, affects quality management activities and Business performance(Balanced Score Card; BSC).
Journal of the Korean Society of Food Science and Nutrition
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v.43
no.1
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pp.162-171
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2014
As the foodservice industry is labor intensive, the efficient management of human resources is an essential element for improving operational efficiency. This study was designed to investigate the performance level of human resource management in self-operated school foodservices and to examine the relationship between human resource management, organizational commitment, and productivity. Whether these factors rated differently by employment and job types was also examined. Data were collected through questionnaires distributed to 60 dieticians and 240 cooks in Seongnam and Yongin. Frequency analysis, factor analysis, the t-test and multiple regression analysis were tested using Minitab. Human resource management practices rated highly in the dimension of employee training (3.51), followed by working environment (3.39), and turnover management (3.37). In contrast, reward management (1.73) and working condition (1.56) received the lowest score. Organizational commitment scored 3.65 points, and showed that dedication (3.82) was the highest score; however, self-esteem (3.50) was the lowest score. For human resource management, there were significant differences between employment types as full time workers (3.85) rated management more highly than part-time worker (3.43). Overall productivity was fairly high, especially in high school foodservices. Only the performance appraisal had an influence on organizational commitment (${\beta}$=0.292, P<0.05). Productivity was positively correlated with human resource management (r=0.432, P<0.001) and organizational commitment (r=0.36, P<0.01). In conclusion, school foodservices need to establish objective performance standards, and increase employee morale by enhancing reward systems and working conditions. In particular, irregular employees require training with job performance standards and given a proper reward program, depending on their performance, to improve organizational commitment.
The purpose of the study was to identify the relationships Total Quality Management (TQM) performance, job satisfaction, and organizational commitment among dietitians in business and industry foodservice. A total of 300 dietitians working in business and industry foodservices in Seoul and Gyeonggi province were surveyed using a self-administrated questionnaire and 203 responses were obtained. The data were analyzed using SPSS Windows (Ver. 12.0) for descriptive analysis and reliability analysis, and AMOS (Ver. 5.0) for structural equation modeling. The respondents were all female, 56.7% single, and 71.4% under regular employment. By foodservice management type, 52.7% of the foodservice operations were self-operated. The majority of the operations provided meals more than twice a day (73.9%), and 70.4% offered a non-selective menu. The dietitians of the contracted foodservices tended to have higher TQM performance scores than those of the self-operated foodservices (P<0.01). There were no significant differences in job satisfaction and organizational commitment scores by the type of the foodservice management. TQM performance was found to have a positive effect on job satisfaction, and job satisfaction affected organizational commitment for both the self-operated and contracted foodservices. A relationship between TQM performance level and organizational commitment of self-operated foodservices was not found. On the other hand, TQM performance level was the principal significant factor for increasing the organizational commitment of contracted foodservices. This research suggests that business and industry foodservices need to improve TQM performance to enhance job satisfaction and organizational commitment of foodservice dietitians and to develop specified TQM strategies that can be applied to each type of foodservice management.
Journal of Korean Society of Occupational and Environmental Hygiene
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v.27
no.4
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pp.283-290
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2017
Objectives: This study aimed to evaluate the relationship between filter replacement and filter performance change in particulate filters used in the workplace. Methods: Three types of particulate respirator filters are mainly used in the workplaces. These were tested against the filter performance safety certification standard for dust masks established by the Ministry of Employment and Labor(MoEL). Used filters were collected to test their performance, such as filter pressure drop, efficiency, and quality factors. All these factors were evaluated by a filter tester. To compare filter performance between used and new ones, the same kinds of new filters were also tested together under the same procedures. Results: A total of 270 used filters were collected for testing. The main reasons to replace the filters were difficulty in breathing(46.2%), dirty/odor influx(19.7%), and a combination of factors(26.7%). The pressure drop for two special class groups was significantly different(new filters: $20.72{\pm}3.33mmH_2O$; used filters: $24.70{\pm}5.26mmH_2O$, p<0.0001). In the case of penetration, new filter groups indicated $0.0032{\pm}0.0040%$, while that of the used filters was $0.0596{\pm}0.1187%$. The quality factor for the used filters($0.34{\pm}0.09$) significantly decreased compared to the new filters($0.53{\pm}0.08$) (p<0.0001). Conclusions: Filter performance including pressure drop, penetration, and the quality factor was evaluated and compared between new and used filters in the workplace. The results showed that general filter performance deteriorated more for change of pressure drop, penetration and the quality factor.
Sustainable practices of school foodservices are gaining more attentions. The study aimed to investigate dietitians' performance levels of sustainable practices in school foodservice settings in Gyeonggi Provinces. Using a survey method was used, and data were collected from 358 participants (response rate 59.7%) to be analyzed using the SPSS program. The evaluation tool for sustainable practices of school foodservices consisted of four sections and 34 criteria with 100 points. Employment status of the respondents was as follows: nutrition teachers 40.9%, dietitians (permanent) 45.1%, and temporary position dietitians 13.2%. Dietitians' performance for sustainable practices marked 65.67 points out of 100 (performance rate 66%) and were in the following order by section: sustainable foodservice management criteria (69%), support activities (69%), planning and evaluation (68%), and outcome management (52%). Regarding sub-sections, criteria that acquired higher performance rates were labelling of food origin (99%), use of seasonal vegetables and fruits (98%), food waste management by contract dealer (98%), and planning for reducing of food waste and solid waste (91%). Meanwhile, criteria that showed the lowest scores were installing water conservation devices on equipment (19%), operating food donation programs for communities (21%), use of sensor lights for electricity conservation (24%), planning for annual energy conservation (40%), and implementation of education programs for foodservice workers on sustainable activities (42%). Performance scores differed according to school levels and working experience of dietitians, indicating that dietitians at elementary school foodservices or with work experience of 15 to 20 years showed higher performance than those at high schools or with less than 5 years of work experience (P<0.001, P<0.05). Based on the results, action plans for improvement were suggested.
The purpose of this research was to analyze the work performance and the general characteristics influencing work performance of customized home health care nurse. Research participants were 204 nurses who worked in the customized home health care of 33 public health centers in Daegu city and Gyeong-Buk Province. The data were collected by self report questionnaires from July, 1 to August, 30, 2011. The highest degree of work performance was the diabetes mellitus service, while the lowest degree was pregnant women services. Age, marital status, education level, religion, career at public health center, visiting nurses career and work area were the significant factors related to work performance in these subjects. Customized home health care nurses management policy which includes assignment tasks and employment security considering general characteristics of visiting nurses should be established to enhance of activation and stable settlement of customized home health care service.
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