scholarly journals Demand Function for Industrial Electricity: Evidence from South Korean Manufacturing Sector

2019 ◽  
Vol 11 (18) ◽  
pp. 5112
Author(s):  
Kim ◽  
Kim ◽  
Yoo
Keyword(s):  
South Korea ◽  
Demand Function ◽  
Manufacturing Sector ◽  
Estimation Method ◽  
Electricity Consumption ◽  
Nationwide Survey ◽  
Economic Benefits ◽  
Manufacturing Firms ◽  
Cross Sectional ◽  
Least Absolute Deviations

Electricity is a crucial input to the industrial production of South Korea. Estimating the demand function for electricity in the manufacturing sector is an important task because electricity consumption in the manufacturing sector accounts for 56.3% of total electricity consumption in South Korea. Thus, this article tries to estimate the demand function for industrial electricity in the manufacturing sector of South Korea using cross-sectional data for analyzing the influence of manufacturing firms’ characteristics. To this end, 946 observations collected from a nationwide survey of manufacturing firms in 2018 are used and analyzed. As a robust approach, the least absolute deviations estimation method is applied to obtaining the demand function. The results show that the price elasticity and the sales amount elasticity of the industrial electricity demand are estimated to be −0.9206 and 0.2568, respectively, which are statistically significant at the 1% level. Furthermore, the economic benefits of industrial electricity consumption are computed to be 1.46 times as great as the price of electricity. The results of this study can be utilized in policy planning, making, and evaluation.

scholarly journals Price Elasticity of Heat Demand in South Korean Manufacturing Sector: An Empirical Investigation

2019 ◽  
Vol 11 (21) ◽  
pp. 6144
Author(s):  
Hyo-Jin Kim ◽  
Jae-Sung Baek ◽  
Seung-Hoon Yoo
Keyword(s):  
South Korea ◽  
Price Elasticity ◽  
Demand Function ◽  
Manufacturing Sector ◽  
Estimation Method ◽  
Economic Benefits ◽  
Manufacturing Firms ◽  
Hot Water ◽  
Heat Consumption ◽  
Heat Demand

Heat is a crucial input supplied in the form of steam or hot water to industrial production of South Korea. Estimating the demand function for heat in the manufacturing sector is all the more important a task in terms of policy because heat consumption in the manufacturing sector is increasing because using heat directly as a fuel can reduce the air pollutants emissions and save energy when compared with using electricity, which is secondary energy. Thus, this article tries to estimate the demand function for industrial heat in the manufacturing sector of South Korea using cross-sectional data for analyzing the influence of manufacturing firms’ characteristics. To this end, 257 observations collected from a nationwide survey of manufacturing firms in 2017 are used and analyzed. As a robust approach, the least absolute deviations estimation method is applied to obtain the demand function. The results show that the price elasticity and sales amount elasticity of the industrial heat demand are estimated to be −0.8476 and 1.0144, respectively, which are statistically significant at the 1% level. Furthermore, the economic benefits of industrial heat consumption are computed to be 1.59 times as great as the price of heat. The results of this study can be utilized in policy planning, making, and evaluation.

scholarly journals Valuing Improved Power Supply Reliability for Manufacturing Firms in South Korea: Results from a Choice Experiment Survey

2018 ◽  
Vol 10 (12) ◽  
pp. 4516
Author(s):  
Doo-Chun Kim ◽  
Hyo-Jin Kim ◽  
Seung-Hoon Yoo
Keyword(s):  
South Korea ◽  
Power Supply ◽  
Choice Experiment ◽  
Manufacturing Sector ◽  
Manufacturing Firms ◽  
Economic Damage ◽  
Electricity Supply ◽  
Industrial Sectors ◽  
Electricity Bill ◽  
Supply Reliability

An outage of electricity may cause considerable economic damage to industrial sectors. Thus, South Korea electricity authorities demand information about the value of improved power supply reliability for the manufacturing sector to implement them in planning electricity supply. This article aims to measure the value using a specific case of South Korean manufacturing firms. The choice experiment (CE) approach is adopted for this purpose. A nationwide CE survey of 1148 manufacturing firms was undertaken. The firms revealed statistically significant willingness to pay for a decrease in the duration of interruption, avoiding interruption during daytime (9 a.m. to 6 p.m.) rather than off-daytime (6 p.m. to 9 a.m.), and preventing interruption during weekdays rather than weekend. For example, they accepted a 0.02% increase in the electricity bill for reducing one minute of interruption during electricity outage, a 2.98% increase in the electricity bill to avoid interruption during the daytime rather than off-daytime, and a 1.60% increase in electricity bill for preventing interruption during weekdays rather than weekends. However, they put no importance on the season of interruption. These results can be useful for policy-making and decision-making regarding improving electricity supply reliability.

scholarly journals Is polycystic ovary syndrome appropriately diagnosed by obstetricians and gynaecologists across China: a nationwide survey

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Deng Yan ◽  
Wang Yan-Fang ◽  
Zhu Shi-Yang ◽  
Ma Rui-Lin ◽  
Ding Xue-Song ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Diagnostic Criteria ◽  
Polycystic Ovary ◽  
Final Analysis ◽  
Nationwide Survey ◽  
Care Quality ◽  
Cross Sectional Survey ◽  
Ovary Syndrome ◽  
Cross Sectional ◽  
Rotterdam Criteria

Abstract Background To describe the diagnostic criteria used and their application accuracy in the practice of polycystic ovary syndrome (PCOS) caring among obstetricians and gynaecologists across China. Methods This was an Online cross-sectional survey of Obstetricians and gynecologists involved in PCOS caring conducted via the largest continuing education platform of obstetrics and gynecology across China from September 2019 to November 2019. Results A total of 2,328 respondents were eligible for the final analysis. Of these, 94.5 % were general obstetricians and gynaecologists (Ge-ObGyn), and 5.5 % were reproductive endocrinologists (Re-ObGyn). Overall, the most frequently used criteria were the Androgen Excess and Polycystic Ovary Syndrome Society (AE-PCOS) criteria (48.2 %), followed by the Rotterdam criteria (35.7 %) and NIH criteria (12.1 %). Of the respondents, 31.3 % used their diagnostic criteria in their clinical practice. More respondents who chose the Rotterdam criteria could accurately apply the diagnostic criteria than those who chose the AE-PCOS criteria (41.2 % vs. 32.1 %, P < 0.001). Compared with Ge-ObGyn, Re-ObGyn were less likely to use the AE-PCOS criteria (adjusted odds ratio, 0.513; 95 % CI, 0.328–0.802; P < 0.05) and 1.492 times more likely to accurately use their criteria (95 % CI, 1.014–2.196; P < 0.05). Conclusions Less than one-third of obstetricians and gynaecologists across China could accurately use the diagnostic criteria they choose to diagnose PCOS. There is an urgent need to train obstetricians and gynaecologists on PCOS diagnosis in an effort to improve the medical care quality of patients with PCOS.

scholarly journals Adherence to treatment in paediatric patients – results of the nationwide survey in Poland

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Przemyslaw Kardas ◽  
Marek Dabrowa ◽  
Konrad Witkowski
Keyword(s):  
Professional Practice ◽  
Patient Adherence ◽  
Nationwide Survey ◽  
Full Potential ◽  
Strongly Correlated ◽  
Adherence To Treatment ◽  
Cross Sectional ◽  
Convenience Sample ◽  
Paediatric Patients ◽  
High Prevalence

Abstract Background Due to high prevalence, non-adherence to prescribed treatment seriously undermines the effectiveness of evidence-based therapies in paediatric patients. In order to change this negative scenario, physicians need to be aware of adherence problem, as well as of possible solutions. Unfortunately, full potential of adherence-targeting interventions is still underused in Poland. Therefore, the aim of this study was to assess the knowledge, attitudes and behaviours toward non-adherence in Polish paediatricians. Methods An anonymous cross-sectional nationwide survey was conducted in the convenience sample of Polish doctors providing care to paediatric patients. The survey focused on the prevalence of non-adherence, its causes, and interventions employed. Primary studied parameter was perceived prevalence of non-adherence in paediatric patients. Reporting of this study adheres to STROBE guidelines. Results One thousand and thirty-three responses were eligible for analysis. Vast majority of respondents were female (85.9%), most of them worked in primary care (90.6%). The respondents represented all 16 Polish Voivodeships, with the biggest number coming from the Mazowieckie Voivodeship (n = 144, 13.9%). Survey participants believed that on average 28.9% of paediatric patients were non-adherent to medication. More than half of the respondents (n = 548, 53.0%) were convinced that their own patients were more adherent than average. Duration of the professional practice strongly correlated with a lower perceived prevalence of non-adherence. Professionals with more than 40 years of practice believed that the percentage of non-adherent patients was <=20% particularly often (OR = 3.82 (95% CI 2.11–6.93) versus those up to 10 years in practice). Out of all respondents, they were also most often convinced that their own patients were more adherent than the general population (P < 0.01). Consequently, they underestimated the need for training in this area. Conclusions Physicians taking care of Polish paediatric patients underestimated the prevalence of medication non-adherence and believed that this was a problem of other doctors. This optimistic bias was particularly pronounced in older doctors. These results identify important barriers toward improving patient adherence that are worth addressing in the pre- and post-graduate education of Polish physicians. They also put some light over the challenges that educational activities in this area may face.

scholarly journals Vaccine-Related Errors in Reconstitution in South Korea: A National Physicians’ and Nurses’ Survey

Vaccines ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 117
Author(s):  
Young Hwa Lee ◽  
Rebecca C. Harris ◽  
Hong Won Oh ◽  
Yongho Oh ◽  
Juan C. Vargas-Zambrano ◽  
...  
Keyword(s):  
South Korea ◽  
High Frequency ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Vaccine Preparation

Vaccine-related errors (VREs) result from mistakes in vaccine preparation, handling, storage, or administration. We aimed to assess physicians’ and nurses’ experiences of VREs in South Korea, focusing on reconstitution issues, and to understand the barriers to and facilitators of preventing them. This was a cross-sectional study using an internet-based survey to examine experiences of reconstitution-related errors, and experience or preference with regard to ready-to-use vaccines (RTU) by physicians and nurses. A total of 700 participants, including 250 physicians and 450 nurses, responded to the questionnaire. In total, 76.4% and 41.5% of the physicians and nurses, respectively, reported an error related to reconstituted vaccines. All errors had been reported as experienced by between 4.9% and 52.0% of physicians or nurses. The errors were reported to occur in more than one in 100 vaccinations for inadequate shaking of vaccines by 28.0% of physicians and 6.9% of nurses, incomplete aspiration of reconstitution vials by 28.0% of physicians and 6.4% of nurses, and spillage or leakage during reconstitution by 20.8% of physicians and 6.9% of nurses. A total of 94.8% of physicians had experience with RTU vaccines, and all preferred RTU formulations. In conclusion, this study highlights the high frequency and types of reconstitution-related errors in South Korea. RTU vaccines could help reduce the time needed for preparation and reduce the risk of errors in South Korea.

scholarly journals Panic and Trust during COVID-19: A Cross-Sectional Study on Immigrants in South Korea

Healthcare ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 199
Author(s):  
Myeong Sook Yoon ◽  
Israel Fisseha Feyissa ◽  
So-Won Suk
Keyword(s):  
Public Health ◽  
South Korea ◽  
Pearson Correlation ◽  
Cross Sectional Study ◽  
Native Community ◽  
Cross Sectional ◽  
The Public ◽  
Marginalized Groups ◽  
Local Media ◽  
Effective Public Health

In the COVID-19 pandemic, marginalized groups like migrants are disproportionately affected. As panic, fear of neglect, and mistrusting institutions in these groups are presumed to be apparent, their detachment to health services still needs to be investigated. This study comparatively analyzed the level of panic and trust between South Koreans and immigrants who are living within highly affected areas of South Korea. Mann–Whitney-U-Test and Pearson correlation showed panic is more pronounced in the Korean group while having a similar panic display pattern with the immigrants. The immigrant group appears to highly trust the Korean health system, health institutions, local media, and the local native community. Beyond conventional expectations, participant’s average panic score showed a statistically significant positive correlation with items of the trust scale, indicating a level of individual reliance amid the pandemic panic. Thus, ascertaining institutional trust and matured citizenry are identified as factors for effective public health outcomes. During such a pandemic, this study also reminded the public health needs of immigrants as secondary citizens, and presumptions of immigrants’ mistrust in such settings might not always be true.

scholarly journals Cross-sectional association between long working hours and liver function: the Kangbuk Samsung Health Study

BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e041595
Author(s):  
Eunchan Mun ◽  
Woncheol Lee ◽  
Min-Woo Nam ◽  
Hyun-Il Kim ◽  
Hyeongcheol Kim ◽  
...  
Keyword(s):  
General Population ◽  
Hepatitis B ◽  
Liver Function ◽  
South Korea ◽  
Hepatitis B Surface Antigen ◽  
Working Hours ◽  
Health Study ◽  
Health Examination ◽  
Cross Sectional ◽  
Long Working Hours

ObjectivesAlthough the effects of long working hours on liver function remain unclear, in South Korea, there is a social perception that long working hours are associated with poor liver function. Thus, long working hours have recently become a major issue. This study aimed to determine the association between long working hours and liver function, as indicated by the alanine transaminase (ALT) levels.DesignCross-sectional study.SettingLarge university hospitals in Seoul and Suwon, South Korea.ParticipantsWorkers in formal employment who underwent a comprehensive health examination at the Kangbuk Samsung Hospital Total Healthcare Centre clinics in Seoul and Suwon, South Korea, between January 2011 and December 2018. Of the 386 488 participants, 212 421 met the inclusion criteria and were included in the analysis.Primary outcome measureALT elevation.ResultsThe participants were predominantly well-educated (86.1%), male (69.3%) and in their 30s (49.6%). In total, 13.4% of the participants presented ALT elevation (>40 IU/L). There was no significant association between working hours and ALT elevation in the general population and in the hepatitis B surface antigen (HBsAg)-negative group. Conversely, in the HBsAg-positive group, working >60 hours per week compared with 35–40 hours per week was significantly associated with ALT elevation. The association was more pronounced in those with ALT levels >80 IU/L (OR 1.94, 95% CI 1.24 to 3.01) than in those with ALT levels >40 IU/L (OR: 1.45, 95% CI 1.20 to 1.75). The p values for trend were <0.05.ConclusionsLong working hours were associated with ALT elevation only in hepatitis B virus carriers and not in the general population. Provided that there is adherence to the legal working hours, there is no need to further restrict working hours for liver health, irrespective of HBsAg status.

scholarly journals Sex differences and correlates of poor glycaemic control in type 2 diabetes: a cross-sectional study in Brazil and Venezuela

BMJ Open ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. e023401 ◽  
Author(s):  
Fernanda G Duarte ◽  
Sandra da Silva Moreira ◽  
Maria da Conceição C Almeida ◽  
Carlos A de Souza Teles ◽  
Carine S Andrade ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Glycaemic Control ◽  
Treatment Guidelines ◽  
Specific Treatment ◽  
Nationwide Survey ◽  
Haemoglobin A1c ◽  
Cross Sectional ◽  
Factors Associated ◽  
Adherence To Diet

ObjectiveExamine whether glycaemic control varies according to sex and whether the latter plays a role in modifying factors associated with inadequate glycaemic control in patients with type 2 diabetes (T2D) in Brazil and Venezuela.Design, setting and participantsThis was a cross-sectional, nationwide survey conducted in Brazil and Venezuela from February 2006 to June 2007 to obtain information about glycaemic control and its determinants in patients with diabetes mellitus attending outpatient clinics.Main outcome measuresHaemoglobin A1c (HbA1c) level was measured by liquid chromatography, and patients with HbA1c ≥7.0% (53 mmol/mol) were considered to have inadequate glycaemic control. The association of selected variables with glycaemic control was analysed by multivariate linear regression, using HbA1c as the dependent variable.ResultsA total of 9418 patients with T2D were enrolled in Brazil (n=5692) and in Venezuela (n=3726). They included 6214 (66%) women and 3204 (34%) men. On average, HbA1c levels in women were 0.13 (95% CI 0.03 to 0.24; p=0.015) higher than in men, after adjusting for age, marital status, education, race, country, body mass index, duration of disease, complications, type of healthcare, adherence to diet, adherence to treatment and previous measurement of HbA1c. Sex modified the effect of some factors associated with glycaemic control in patients with T2D in our study, but had no noteworthy effect in others.ConclusionsWomen with T2D had worse glycaemic control than men. Possible causes for poorer glycaemic control in women compared with men include differences in glucose homeostasis, treatment response and psychological factors. In addition, sex modified factors associated with glycaemic control, suggesting the need to develop specific treatment guidelines for men and women.

scholarly journals Looking into the life of technology-dependent children and their caregivers in Korea: lifting the burden of too many responsibilities

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Yu Hyeon Choi ◽  
Min Sun Kim ◽  
Cho Hee Kim ◽  
In Gyu Song ◽  
June Dong Park ◽  
...  
Keyword(s):  
South Korea ◽  
Home Care ◽  
Time Pressure ◽  
Economic Status ◽  
Financial Burden ◽  
Primary Caregivers ◽  
Healthcare Services ◽  
Tertiary Hospital ◽  
Cross Sectional ◽  
Dependent Children

Abstract Background The number of technology-dependent children (TDC) is increasing in South Korea, but available healthcare services after their discharge are poor. This study aimed to examine how TDC and caregivers live at home and identify their difficulties and needs regarding home care with few services to support them. Methods This cross-sectional study was conducted in a tertiary hospital for children in South Korea. A self-reported questionnaire was completed by primary caregivers of TDC who were younger than 19 years and had been dependent on medical devices for more than 3 months. Technologies included home mechanical ventilation, oxygen supplementation, suction equipment, enteral feeding tube, and home total parenteral nutrition. Patterns of healthcare use and home care of TDC and caregivers’ perception toward child were assessed. Results A total of 74 primary caregivers of TDC completed a self-reported questionnaire. About 60% children were aged under 5 years. There were 31.1% children who required both respiratory and nutritional support. On average, caregivers took care of a child for 14.4 (±6.1) hours, slept for 5.6 (±1.6) hours, and spent 2.4 h per day on personal activities. Children used hospital services for 41.3 (±45.6) days in 6 months, and most (78.1%) were transported through private car/ambulance. Participants (75.6%) reported taking more than an hour to get to the hospital. More than 80% of caregivers responded that child care is physically very burdensome. The only statistically significant relationships was between economic status and financial burden (p = 0.026). Conclusions Caregivers of TDC reported having significant time pressure regarding childcare-related tasks, insufficient time for personal activities, and inefficient hospital use because of inadequate medical services to support them in South Korea. Thus, it is necessary to support caregivers and develop a home care model based on current medical environment.

scholarly journals Factors affecting the self-rated health of immigrant women married to native men and raising children in South Korea: a cross-sectional study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Bookyoung Kim ◽  
Kyung-Bok Son
Keyword(s):  
South Korea ◽  
Immigrant Women ◽  
Country Of Origin ◽  
The Self ◽  
Chinese Han ◽  
Cross Sectional ◽  
Raising Children ◽  
Medical Needs ◽  
Self Rated Health ◽  
Korean Chinese

Abstract Background Since the influx of international immigrants to South Korea (Korea) in the 1980s, the number of immigrants married to native Koreans has increased substantially over the last 30 years. This study aims to provide recent evidence on the self-rated health of immigrant women married to native men and raising children. We evaluated the self-rated health of immigrant women sorted by their country of origin and elucidated factors that affect their self-rated health. Methods Data were obtained from the 2015 Korean National Multi-Cultural Family Survey. From the survey, a total of 6960 Korean-Chinese, Han-Chinese, Japanese, Vietnamese, and Filipino women were identified and a series of logistic regressions was conducted to elucidate factors that affected the self-rated health of immigrant women. Results The majority of immigrant women in Korea perceived that they are healthy. However, the self-rated health of immigrant women varied by country of origin. Korean-Chinese and Japanese immigrants are less likely to perceive that they are healthy compared with Filipino and Vietnamese immigrants. We identified several factors at the individual, household, and community levels and found that the majority of them are likely to be ethnic dependent. However, satisfaction with husband and experience of unmet medical needs presented consistent results in the five ethnicity groups. Conclusions Programs that strengthen spousal relationships and policies to enhance access to healthcare could be prioritized options to improve the self-rated health of immigrant women in Korea.

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