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Purpose: The purpose of this study was to develop and test the validity and reliability of the Korean version of the short Falls Efficacy Scale-International (FES-I). Methods: The Korean version of the short FES-I was developed through the FES-I translation protocol. Participants for the psychometric tests included 300 older adults (100 visiting a senior welfare center, 100 registered as frail elderly in a public health center, and 100 visiting an orthopedic department at a university hospital after hip-fracture surgery). The psychometric tests included content, construct, criterion validity, internal consistency, and test-retest reliability. Results: One factor of the seven items was validated and explained by 79.4% of the total variance. Confirmatory factor analysis supported the model fit and convergent validity. Mean scores according to fall history were also significantly different. Correlation analysis confirmed criterion validity with a single item of fear of falling (r=.76, p<.001). There were reliable internal consistencies with Cronbach’s ⍺ coefficients of .95 and, .93, and the ICC (Intra-class Correlation Coefficient) for test-retest reliability was .95. Conclusion: This scale showed excellent validity and reliability in Korea. It is useful to measure fear of falling for older adults in clinical or community settings. [ABSTRACT FROM AUTHOR]

The purpose of this study was to evaluate the validity and reliability of the Korean version of the Pain Assessment in Impaired Cognition (KPAIC-15) for people with dementia. Methods: Participants in this study were 200 patients with dementia in two long-term care hospitals in the Republic of Korea. The PAIC-15 was translated into Korean using the process for the translation and adaptation of instruments developed by the World Health Organization. Three bilingual nursing professionals carried out this process. The construct validity, convergent validity, Cronbach’s ⍺, inter-rater reliability, and test-retest reliability of the translated instrument were evaluated. IBM SPSS Statistics 25.0 and AMOS 26.0 were used for data analysis. Results: In the confirmatory and exploratory factor analyses, the KPAIC-15 exhibited an adequate model fit, with three factors accounting for 72.13% of the total variance. The confirmatory factor analysis supported the validity of the KPAIC-15. The scale had a Cronbach’s ⍺ of .91, an inter-rater reliability of .75 (p<.001), and a test-retest reliability of .71 (p<.001). Conclusion: The findings show the KPAIC-15 is valid and reliable for use in the pain assessment of people diagnosed with dementia in the Republic of Korea. [ABSTRACT FROM AUTHOR]

In traditional criminal cases, there is a limit to information collection because information on the subject of investigation is provided only with personal information held by the national organization of legal. Surface web-based OSINT(Open Source Intelligence), including SNS and portal sites that can be searched by general search engines, can be used for meaningful profiling for criminal investigations. The Korean-style OSINT workflow can effectively profile based on OSINT, but in the case of individuals, OSINT that can be collected is limited because it begins with "name", and the reliability is limited, such as collecting information of the persons with the same name. In order to overcome these limitations, this paper defines information related to individuals, i.e., equivalent information, and enables efficient and accurate information collection based on this. Therefore, we present an improved workflow that can extract information related to a specific person, ie., equivalent information, from OSINT. For this purpose, different workflows are presented according to the person’s profile. Through this, effective profiling of a person (individuals) is possible, thereby increasing reliability in collecting investigation information. According to this study, in the future, by developing a system that can automate the analysis process of information collected using artificial intelligence technology, it can lay the foundation for the use of OSINT in criminal investigations and contribute to diversification of investigation methods. [ABSTRACT FROM AUTHOR]

To compare agronomic and seed traits of 135 common bean landraces originating from Korea, Bulgaria, and El Salvador, we evaluated 20 morphological traits and performed principal component analysis (PCA). In the PCA, the first and second principal components accounted for 55.15% and 15.97% of the total variance, respectively. The first component showed a strong positive correlation with seed size and 100-seed weight, whereas the second component produced a strong negative correlation with days to flowering and days to maturity, indicating that these traits may explain the differences between landraces originating from different countries. Landraces from Korea showed higher variation in days to flowering and days to maturity; those from Bulgaria produced larger and heavier seeds; those from El Salvador produced smaller and lighter seeds and flowering and maturity occurred earlier. In addition, the landraces from El Salvador had relatively lower diversity compared to those from other countries, as they were grouped within a small cluster in the PCA. These evaluation results may provide important information for selecting breeding materials, and diversity analyses of landraces from different countries provide information for securing genetic resources. [ABSTRACT FROM AUTHOR]

Due to the COVID-19 pandemic, with increased ‘untact’ services and with unstable household economy, the bike insurance fraud is expected to surge. Moreover, the fraud methodology gets complicated. However, the fraud detection model for bike insurance is absent. we deal with the issue of skewed class distribution and reflect the criterion of fraud detection expert. We utilize a balanced random-forest algorithm to develop an efficient bike insurance fraud detection model. As a result, while the predictive performance of balanced random-forest model is superior than it of non-balanced model. There is no significant difference between the variables used by the experts and the confirmatory models. The important variables to detect frauds are turned out to be age and gender of driver, correspondence between insured and driver, the amount of self-repairing claim, and the amount of bodily injury liability. [ABSTRACT FROM AUTHOR]

As artificial intelligence services targeting humans increase, social demands are increasing that artificial intelligence should also be made on an ethical basis. Following this trend, the government and businesses are preparing policies and norms related to artificial intelligence ethics. In order to establish reasonable policies and norms, the first step is to understand the public's perceptions. In this paper, social data and news comments were collected and analyzed to understand the public's perception related to artificial intelligence and ethics. Interest analysis, emotional analysis, and discourse analysis were performed and visualized on the collected datasets. As a result of the analysis, interest in "artificial intelligence ethics" and "artificial intelligence" favorability showed an inversely proportional correlation. As a result of discourse analysis, the biggest issue was "personal information leakage," and it also showed a discourse on contamination and deflection of learning data and whether computer-made artificial intelligence should be given a legal personality. This study can be used as data to grasp the public's perception when preparing artificial intelligence ethical norms and policies. [ABSTRACT FROM AUTHOR]

Sleep disorders, increasingly prevalent in the general population, induce impairment in daytime functioning and other clinical problems. As changes in cortical excitability have been reported as potential pathophysiological mechanisms underlying sleep disorders, multiple studies have explored clinical effects of modulating cortical excitability through non-invasive brain stimulation in treating sleep disorders. In this study, we critically reviewed clinical studies using non-invasive brain stimulation, particularly transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS), for treatment of sleep disorders. Previous studies have reported inconsistent therapeutic effects of TMS and tDCS for various kinds of sleep disorders. Specifically, low-frequency repetitive TMS (rTMS) and cathodal tDCS, both of which exert an inhibitory effect on cortical excitability, have shown inconsistent therapeutic effects for insomnia. On the other hand, high-frequency rTMS and anodal tDCS, both of which facilitate cortical excitability, have improved the symptoms of hypersomnia. In studies of restless legs syndrome, high-frequency rTMS and anodal tDCS induced inconsistent therapeutic effects. Single TMS and rTMS have shown differential therapeutic effects for obstructive sleep apnea. These inconsistent findings indicate that the distinctive characteristics of each non-invasive brain stimulation method and specific pathophysiological mechanisms underlying particular sleep disorders should be considered in an integrated manner for treatment of various sleep disorders. Future studies are needed to provide optimized TMS and tDCS protocols for each sleep disorder, considering distinctive effects of non-invasive brain stimulation and pathophysiology of each sleep disorder. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of this study was to investigate the knowledge, attitudes, and educational needs for gerontological nursing in cancer hospital nurses. Methods: Participants included 208 nurses who had been working in the general wards for more than 6 months. Data collection was conducted through self-reported questionnaires. The Knowledge Scale and Educational Needs for Gerontological Nursing Scale were used for data collection. Also, a Korean version of the Attitudes Toward Older Adults Scale developed by Lim was used. Data were analyzed using descriptive statistics, t-test, ANOVA and Duncan test for multiple comparisons. Results: The average score of the nurses’ knowledge on nursing care for older adults was 21.09 out of 30 points, and their attitudes toward older adults scored 4.29 out of 7 points, which was within a neutral range. The average score of the needs for gerontological nursing education was 4.10 out of 5. In the knowledge level assessment, the drug intervention area showed the lowest score. In terms of the educational needs, geriatric clinical symptoms such as a sore and delirium, and the drug intervention, including dose and toxicity, showed the highest score. Conclusion: Based on the above results, providing education is necessary for cancer hospital nurses so their knowledge on and positive attitudes toward older adults can improve. [ABSTRACT FROM AUTHOR]

Suicide is a leading cause of death worldwide, especially among adolescents and young adults. Considering this fact, it is imperative that we understand the neural mechanisms underlying suicidal thoughts and behaviors in youth from a neurodevelopmental perspective. In this review, we focused on the magnetic resonance imaging studies that examined the neural correlates of suicidal ideations (SI) or attempts (SA) in youth. We reviewed twenty-three cross-sectional studies reporting the structural and functional alterations in association with SI or SA among adolescents and young adults with various mental disorders. The previous literature suggests that the dorsolateral prefrontal cortex, anterior cingulate cortex, and ventral frontolimbic circuit, may play an important role in the pathophysiology of suicidal behavior in youth through altered top-down control over emotion and impulsivity. Future studies with a longitudinal design and using multimodal imaging techniques may be of help to identify novel therapeutic targets specific for youth with suicidal thoughts and behaviors. [ABSTRACT FROM AUTHOR]

Purpose: Sleep disturbance is among commonly reported symptoms associated with leukemia and its treatment. The purpose of this study was to identify the symptom experience, anxiety and depression, and sleep disturbance in patients with acute leukemia undergoing chemotherapy. Methods: A total of 82 patients with acute leukemia who were undergoing chemotherapy were recruited. Data were collected using a self-reported questionnaire, which included the M. D. Anderson Symptom Inventory, the Hospital Anxiety Depression Scale, the Pittsburgh Sleep Quality Index, and the Patient Activation Measure 13. Results: Sleep disturbance and symptom experience, and anxiety and depression were shown to be positively correlated, and patient activation was shown to be negatively correlated. Use of sleeping pills and symptom severity were significantly associated with sleep disturbance. Conclusion: The psychological and physical symptoms patients experience during treatment should be accurately identified, and effective nursing interventions should be provided. In addition, patient activation in patients with acute leukemia under inpatient treatment was not correlated with symptoms. However, supportive care should be provided to develop and accurately measure patient activation tools suitable for disease characteristics to increase patient activation. [ABSTRACT FROM AUTHOR]

The use of personal mobility(PM) is increasing because of preading shared mobility, but, it causes risk of accidents and fear to pedestrians because of lack of sound. The purpose of this study is to find out the effects of the alert sound in PM and driving direction on risk perception of pedestrians, awareness on PM driver, and allowance for driving on each road. The 8 videos were produced from a pedestrian perspective, depending on the alert sound type(silent, vess, bell, voice) and direction of driving(front, back). After watching each video, participants completed surveys. There was a non-effect on the driving direction. Regardless of the alert sound type, all of the sounds reduced the risk perception. Also, the awareness of PM drivers and allowance for driving on each road were positive. This study found that PM needed an alert sound for pedestrian safety. We expect the results of the study to help improve awareness of PM and make policies and regulations. [ABSTRACT FROM AUTHOR]

In this study, the angle ambiguity of a single baseline is analyzed to design an antenna baseline for an interferometric radar altimeter (IRA). To overcome the shortcoming of a single baseline in which angle ambiguity occurs during every phase period, the IRA adopts multiple baselines for its antenna and estimates the target angle by employing the phase comparison monopulse algorithm. However, the problem with multiple baselines is that an angle ambiguity that is difficult to solve by signal processing occurs when the phase error is large. To minimize this problem at the antenna design stage, the angle ambiguity is analyzed according to the phase error and the baseline spacing. The analysis is performed by conducting a parameter study based on the Monte Carlo simulation, and the validity of the analysis is verified from the test data. [ABSTRACT FROM AUTHOR]

This study examined whether the probability of a tax investigation by the general construction industry could reduce the entertainment expenses in order to confirm whether a tax investigation can reduce excessive discretionary expenses of firms. Among the general construction industry listed on the KOSPI and KOSDAQ from 2011 to 2018, 274 firms with sales exceeding 10 billion won in the previous year were targeted at the tax audit selection rate and the tax audit detection rate, which is a proxy for the possibility of a tax investigation. The effect of the ratio of entertainment expenses to sales and the increase rate of entertainment expenses was verified. As a result of the analysis, both the selection rate and the detection rate of the tax investigation have a significant negative effect on the proxy variable of the discretionary expenses measured as the proportion of entertainment expenses and the increase rate of entertainment expenses. The results of this study showed that the tax investigation is a means to curb the excessive expenditure of the firm's discretionary expenses, thus suggesting the direction for the taxation policy and the effectiveness of the tax investigation. [ABSTRACT FROM AUTHOR]

SNS data can catch the user's thoughts and actions. And the trend of the search portal is a representative service that can observe the interests of users and their changes. In this paper, the relationship was analyzed by comparing statistics on narcotics incidents and the degree of exposure to narcotics related words in tweets of SNS and in the trends of search portal. It was confirmed that the trend of SNS and search portal trends was the same in the statistics of the prosecution office with a certain time difference.In addition, cluster analysis was performed to understand the meaning of tweets in which narcotics related words were mentioned. In the 50,000 tweets collected in January 2020, it was possible to find meaning related to the sale of actual drugs. Therefore, through SNS monitoring alone it is possible to monitor narcotics-related incidents and to find specific sales or purchase-related information, and this can be used in the investigation process. In the future, it is expected that crime monitoring and prediction systems can be proposed as related crime analysis may be possible not only with text but also images. [ABSTRACT FROM AUTHOR]

The purpose of this study is to analyze the cases of endangered species protection campaigns of domestic and foreign enterprises and to present improvement points and direction. Therefore, this study analyzed the cases and characteristics of the campaign by setting above small and medium sized domestic and foreign companies as subjects for research. The study found that there were mainly campaigns conducted in cooperation with large environmental organizations in Korea, and as an IT powerhouse, there were examples of such campaigns. Foreign companies independently participated in environmental protection, and cases of fashion and cosmetic brand campaigns were easily found. Based on these characteristics, this study aims to present improvements and directions for animal protection campaigns in the future. [ABSTRACT FROM AUTHOR]

We tried to do research on main views(risk and knowledge-based) and propose user knowledge as a factor to be managed in order to strengthen the performance. This study empirically analyzed the user-related and project management risk that affect the IT project performance, and verified user knowledge as a moderating variable. The survey was conducted for respondents who have experience on IT Project of public sector and data were analyzed by Smart PLS 3.0. The results show that low user-related and project management risks have a positive effect on performance. In addition, user knowledge has been shown to enhance the impact of two risks on performance. These findings are meaningful in that they emphasize the importance of user knowledge in public-sector IT projects, as well as the repeated verification of integrated research results. [ABSTRACT FROM AUTHOR]

Purpose: This study was done to identify senior center nurses’ experience on emergency management. Methods: From May to August 2018, data were collected through three focus group interviews (FGIs) with 11 senior center nurses. All recorded data were analyzed using qualitative content analysis. Results: In the research, there were barriers and facilitators for emergency management. Two themes, four categories, and eight sub-categories were found. Themes were ‘barriers to emergency management’ and ‘facilitators to emergency management’. Categories for the first theme were: 1) burden of emergency response; 2) insufficient emergency response support. For the second theme, categories were: 1) improved senior center nurses’ competency; and 2) senior center nurses' network. Conclusion: Emergency nursing services are essential for health of elders in senior centers. For the safety of senior center users, it is urgent to provide support to solve barriers to emergency management and improve facilitators. The cooperation of agencies and staff in the development of an emergency management manual and provision of manpower support, improvement in record systems, and materials are also needed. [ABSTRACT FROM AUTHOR]

This study is a systematic review study to confirm the effectiveness of the health promotion program for the elderly in the community. The research method was to search for published papers using the domestic databases RISS, KISS, DBpia, and KoreaMed, analyze a total of 10 studies, and code them for 2 researchers. As a result, the characteristics of intervention in the health promotion program were often applied to the frequency of intervention more than twice a week, and the intervention time of more than 12 weeks, approximately 60 minutes once. In the composition of intervention, the study that applied exercise and education together and the study that mixed the types of exercise were mainly. The outcome measurement variables were muscle strength, body mass index, depression, self-efficacy, health promotion lifestyle, and quality of life. Through this study, it is necessary to develop a sustainable health promotion program and verify effectiveness in the lives of the elderly in the community. [ABSTRACT FROM AUTHOR]

Text mining is a representative method of big data analysis that extracts meaningful information from unstructured and large amounts of text data. Social media such as Twitter generates hundreds of thousands of data per second and acts as a one-person media that instantly and directly expresses public opinions and ideas. The traditional media are delivering informations, criticizing society, and forming public opinions. For this, we compare the responses of SNS with the responses of media on the issue of the termination of the Korea-Japan GSOMIA (General Security of Military Information Agreement), one of the domestic issues in the second half of 2019. Data collected from 201,728 tweets and 20,698 newspaper articles were analyzed by sentiment analysis, association keyword analysis, and cluster analysis. As a result, SNS tends to respond positively to this issue, and the media tends to react negatively. In association keyword analysis, SNS shows positive views on domestic issues such as “destruction, decision, we,” while the media shows negative views on external issues such as “disappointment, regret, concern”. SNS is faster and more powerful than media when studying or creating social trends and opinions, rather than the function of information delivery. This can complement the role of the media that reflects public perception. [ABSTRACT FROM AUTHOR]

The purpose of this study is to develop portal web contents for nursing student’s career search. The portal web contents named 'Nurse Dream' was designed and developed by using 134 nursing students’ survey data and referring to expert consultation. 97.0% of respondents expressed intention of using website or application for career search if it is completed. What they want to know was ‘income(19.0%)’, ‘qualifications for job(18.0%)’, ‘path to job(18.0%)’. With survey analysis and expert consultation, ‘Nurse Dream’ was designed to have various categories including ‘Nurse Career Guidance’, ‘Nurse Recruitment’. Developing portal web contents suggests that it is possible for nursing students to get enough information for career search and enhance career satisfaction, which is likely to give them positive impact. [ABSTRACT FROM AUTHOR]

Purpose: To compare demographic factors and radiologic parameters between metaphyseal fracture and physeal fracture of distal radius in children. Methods: Forty-five children who visited our orthopedic clinic for distal radius fracture were included in this study from May 2010 to February 2017. Patients were divided into 2 groups which are metaphyseal fracture group and physeal fracture group. Demographic factors and radiologic parameters were compared between two groups. Mean age of all patients was 10.18±2.66 years old. There were 39 boys and 6 girls in all patients. Results: Among all patients, 26 patients were diagnosed with metaphyseal fracture, 19 patients with physeal fracture. Complete fracture was most frequent in metaphyseal group and Salter-Harris type II fracture was most frequent in physeal group. Between simple metaphyseal group and physeal group, mean age, weight and height were significantly larger in physeal group. Ratio of patients over 10 years old was significantly higher in physeal group than metaphyseal group (p=0.036). There was no significant difference in radiologic and clinical results. Conclusion: Physeal fracture occurs more frequently more than 10 years old. Postoperative radiologic result was not significantly different between two groups. In children with distal radius fracture over 10 years old, evaluation for the injury of growth plate are recommended. [ABSTRACT FROM AUTHOR]

As the widespread use of mobile health intervention among Korean patients with chronic disease, it is needed to identify research trends in mobile health intervention on chronic care using text mining technique. This secondary data analysis was conducted to investigate characteristics and main research topics in intervention studies from 2005 to 2018 with a total of 20 peer reviewed articles. Microsoft Excel and Text Analyzer were used for data analysis. Mobile health interventions were mainly applied to hypertension, diabetes, stroke, and coronary artery disease. The most common type of intervention was to develop mobile application. Lately, ‘feasibility’, ‘mobile health’, and ‘outcome measure’ were frequently presented. Future larger studies are needed to identify the relationships among key terms and the effectiveness of mobile health intervention using social network analysis. [ABSTRACT FROM AUTHOR]

Oats are known for their abundance of quality proteins and lipids compared to those of other grain crops; they especially contain a large amount of good quality fibers, including β-glucan. The Korean domestic consumption of oats is rapidly increasing due to their high nutritional value. However, the research for functional food breeding material has been insufficient because oats have been focused on as feed. Therefore, this study aimed to evaluate the agronomic traits and important nutritional ingredients, including β-glucan, protein, lipid, fiber, and dietary fiber, of 142 oat germplasms from Korea, China, and Japan, which are maintained in the National Agrobiodiversity Center. In addition, the diversity by origin of the germplasms was analyzed based on their agronomic traits. For the agronomic characteristics, Korean oat germplasms were on average headed and matured earlier than the Chinese and Japanese ones. Seven accessions, including IT151107, were matured before mid-June, which makes double cropping possible in the Southern region of Korea. In the diversity analysis by origin based on quantitative agronomic traits, Korean oat germplasms were in the distinguished group compared to Chinese and Japanese germplasms. Oat germplasm had a wider range of main ingredients compared to that of Korean domestic oat cultivars. However, Chinese germplasms had a significantly higher β-glucan content, while Korean germplasms had significantly higher crude protein, crude lipid, and crude fiber contents, than did other germplasms from other origins. Dietary fiber contents showed no significant differences between origins. IT129802 (China), IT166594 (Korea), IT166584 (Korea), IT151108 (Korea), and IT129798 (China) showed the highest β-glucan, protein, lipid, fiber, and dietary fiber contents, respectively. These selected oat germplasms can be superior breeding materials for various functional and agronomic purposes. [ABSTRACT FROM AUTHOR]

This study was carried out to investigate the utilization value of legume crops collected in tropical and subtropical areas. We examined agronomic traits to assess domestic adaptability and evaluated useful components of foreign legumes. We used a total of 201 genetic resources of three legumes, consisting of 68 lentils, 72 chickpeas and 61 guars. The average number of days to flowering of the three legumes ranged from 56.7 to 60.8 days; the shortest in guar and longest in chickpea. The average number of days to growth of the three legumes ranged from the shortest 86.8 days in lentil, to the longest 163.9 days in guar. The maturation period of the three legumes lasted from the end of May until mid-September, based on sowing in March. However, the average yield of lentil was very low, ranging from 0.5 g to 30.6 g, with an average 16.4 g based on 10 plants per accession. The average 100 seed weight of the three legumes was 2.2 g for lentil, 22.9 g for chickpea, and 3.8 g for guar. The crude protein content ranged from 14.1% to 32.4% with an average of 20.4%, the highest for guar and the lowest for chickpea. The average crude oil content in the three legume crops was generally low, ranging from 0.8% in lentil, to 4.3% in chickpea. The average dietary fiber content in the three legume crops varied from 15.7% to 50.7%. Guar was the highest source of fiber, followed by chickpea (19.3%) and lentil (15.7%). From the agricultural traits analysis, chickpea and guar could grow domestically. However, lentil was difficult to flower and fruit normally during the warmer season after May. Therefore, lentil should be considered for late summer cropping during the cool season. The physicochemical properties of the three legumes seem to be useful as they are similar to, or better than, those of the control common bean. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of this study was to determine the effects of labor intensity and fatigue on the sleep quality of clinical nurses and provide basic data for preparation of nursing interventions to improve sleep quality. Methods: Data were collected from 198 nurses in 2 general hospitals with more than 500 beds in D-city. Data analysis was performed using stepwise regression with the SPSS/WIN 22.0 program. Results: The significant factors influencing sleep quality of the clinical nurses were fatigue, absolute labor intensity, and shift type. Explanatory power was 66% in the regression model. Conclusion: Findings indicate that nurses with higher level of fatigue, and greater absolute labor intensity which implies extended work hours, had lower sleep quality for all the three shifts. To improve the sleep quality of clinical nurses, an intervention program for fatigue management is needed. In addition, hospitals should establish an internal legal standard to compensate overtime work with breaks. At the same time, as shift work is inevitable for nurses, it is necessary to develop a work system that can minimize the disturbance of daily rhythms. [ABSTRACT FROM AUTHOR]

A power line coupler that can apply high-frequency power to a railway overhead line structure was analyzed. It is difficult to supply auxiliary power to an overhead line in a high-voltage environment, and doing so requires a long-distance transfer. A method is proposed that utilizes the resonance on the Rogowski coil, which does not use a magnetic core. A simple overhead line structure was fabricated that consisted of a contact wire, messenger wire, and dropper. Couplers of various sizes were fabricated and deployed on the messenger wire, and the transfer characteristics of the two couplers were compared at a distance. As a result of applying the matching circuit to the coupler, the transmission efficiency was 53% at a distance of 2.5 m. The proposed method shows that it is possible to apply the auxiliary power by using the existing conductor in a special structure, such as the overhead line. [ABSTRACT FROM AUTHOR]

Prosthetic decision-making is complex because of various factors, and involves a combination of the individual dentist's interpretation of the objective clinical data and his or her interaction with the patient. Increasing therapeutic options and emerging outcome data demand the constant re-evaluation of our decision-making process. In this case, fixed prosthetic restorations were selected as a treatment method to reconstruct the occlusal plane of a patient with disharmonious occlusal plane. And the occlusal plane was re-established by establishing a treatment plan through diagnostic wax-up. Provisional restorations obtained by continuous re-evaluation for a sufficient period of time was replicated to definitive restorations using CAD/CAM technology. The results were satisfactory when they were observed through clinical follow-up for 3 months after the end of treatment. [ABSTRACT FROM AUTHOR]

Shift workers experience a disruption in the circadian sleep-wake rhythm, which brings upon adverse health effects such as fatigue, insomnia and decreased sleep quality. Moreover, shift work has deleterious effects on both work productivity and safety. In this review, we present a brief overview of the current literature on the consequences of shift work, especially focusing on attention-associated cognitive decline and related behavioral changes. We searched two electronic databases, PubMed and RISS, using key search terms related to cognitive domains, deleterious effects, and shift work. Twenty studies were eligible for the final review. The consequences of shift work can be classified into the following three categories extracted from the literature review : 1) work accidents ; 2) commuting accidents such as car accidents that occur on the way to and from work ; and 3) attendance management at work (i.e., absenteeism, tardiness, and unscheduled early departure). These cognitive and behavioral consequences of shift work were also found to be associated with sleep disorders in shift workers. Thus, improvements in the shift work system are necessary in order to enhance workers' health conditions, work productivity, and safety. [ABSTRACT FROM AUTHOR]

The proton magnetic resonance spectroscopy (1H-MRS) is a tool used to detect concentrations of brain metabolites such as N-acetyl aspartate, choline, creatine, glutamate, and gamma-amino butyric acid (GABA). It has been widely used because it does not require additional devices other than the conventional magnetic resonance scanner and coils. Demyelination, or the neuronal damage due to loss of myelin sheath, is one of the common pathologic processes in many diseases including multiple sclerosis, leukodystrophy, encephalomyelitis, and other forms of autoimmune diseases. Rodent models mimicking human demyelinating diseases have been induced by using virus (e.g., Theiler's murine encephalomyelitis virus) or toxins (e.g., cuprizon or lysophosphatidyl choline). This review is an overview of the MRS findings on brain metabolites in demyelination with a specific focus on rodent models. [ABSTRACT FROM AUTHOR]

Tracheal injury in neonates is a rare but serious complication of endotracheal intubation. The morbidity and mortality are associated with early recognition and adequate management. Herein, we reported a case of perioperative management of neonatal tracheal injury following multiple attempts at endotracheal intubation caused by unanticipated difficulty. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of this study is to examine the level of understanding of hospice palliative care (HPC) and shared decision making (SDM) among middle-aged adults. Methods: Data were collected from 90 middle-aged adults living in D city using a self-reported questionnaire. The SPSS program was used to analyze the data. Results: Among the participants, 76.7% were aware of the HPC while 82.2% of the participants were not aware of SDM. Among all, 85.6% responded positively for needs of HPC, and 77.8% of participants for SDM. Participants with Christian faith (Protestants and Catholics), high income level and present illness were better aware of HPC than others. The most needed services were nursing care and treatment along with systematic counseling and explanation provided by the medical staff. There was also a significant relationship between the HPC factors, gender, income, current health status and current illness status. Participants with high income level were well aware of SDM. Stronger SDM needs were observed among participants with professional jobs or current illness. Conclusion: For continued discussion on HPC and SDM, it is necessary to implement and promote various education programs for medical staff and the public. [ABSTRACT FROM AUTHOR]

Pericardial mesothelioma is a rare neoplasm in dogs. This report describes a case of pericardial mesothelioma in a 13-year-old Shih Tzu that presented with a clinical history of dyspnea. Hemorrhagic pericardial effusion and chylous pleural effusion with reactive mesothelial cells were identified by radiograph and cytology. Necropsy revealed multiple round nodules throughout the pericardium and regional lymph nodes in addition to chylothorax. Histopathology revealed invasive neoplasm on the pericardial surface with metastasis to the lymph nodes. The neoplastic cells were immunopositive to both cytokeratin and vimentin. Diagnosis of pericardial mesothelioma with regional lymph node metastasis was made. [ABSTRACT FROM AUTHOR]

Background and Objectives: The aim of this study was to evaluate the relationship between salivary alpha-amylase (sAA) and heart rate variability (HRV) indices in SDB children based on objective parameters of polysomnography (PSG). Materials and Method: This prospective study enrolled 67 children who underwent a physical examination and full-attended in-lab PSG with continuous electrocardiographic signal. The sAA were measured at night before PSG and in the early morning after PSG. Results: The subjects were divided into control [n=26, apnea-hypopnea index (AHI)≤1] and obstructive sleep apnea syndrome (OSAS, n=41, AHI＞1) groups; the OSAS group was subdivided into mild (1＜AHI≤5), moderate (5＜AHI≤10), and severe (10＜AHI) groups. The severe OSAS group was significantly different from the control and other OSAS subgroups in terms of the ratio between the low- and high-frequency components (LF/HF ratio) among the HRV indices. The LF/HF ratio was positively correlated with the sAA ratio and sAA subtraction (r=0.271; r=0.347). Conclusion: TAlthough both HRV and sAA were useful methods of predicting severe OSAS in children, a weak correlation between HRV and sAA was shown in pediatric OSAS subjects. Therefore, HRV and sAA may be independent parameters revealing different aspects of pediatric OSAS. [ABSTRACT FROM AUTHOR]

Atlas fracture accounts for 1% to 3% of all spinal column injuries and 10% of cervical spine fractures, and is most frequently caused by motor vehicle accidents and falls. Only a few cases involving complications after surgical treatment have been reported. We present a case of anterior atlas arch stress fracture accompanied by worsening neurologic symptoms following atlas posterior arch resection for cervical myelopathy with retro-odontoid pseudotumor. [ABSTRACT FROM AUTHOR]

Background: Minimal invasive gynecologic surgery usually requires pneumoperitoneum and Trendelenburg positioning, which results in adverse effects on respiratory and hemodynamic parameters. The aim of this study was to investigate the effects of volume-controlled ventilation (VCV) and pressure-controlled ventilation (PCV) introduced sequentially in patients who underwent gynecological laparoscopy on respiratory mechanics, cardiovascular responses, and gas exchange. Methods: Forty patients who were scheduled for gynecologic laparoscopic surgery were enrolled. Baseline ventilation of their lungs was performed with VCV with a tidal volume (TV) of 8 ml/kg ideal body weight (IBW). Forty minutes after pneumoperitoneum and Trendelenburg positioning, the ventilation mode was changed to PCV, and airway pressure was set to provide a TV of 8 ml/kg IBW without exceeding 35 cmH2O. Respiratory mechanics and hemodynamic and gas exchange parameters were recorded at 10 minutes after induction, 30 minutes after CO2 pneumoperitoneum and Trendelenburg positioning, 30 minutes after PCV, and 30 minutes after desufflation and supine position. Results: After pneumoperitoneum and Trendelenburg positioning, there were significant increases in systolic blood pressure, diastolic blood pressure, central venous pressure, peak airway pressure (PAP), mean airway pressure (Pmean), whereas lung compliance and PaO2 significantly decreased. The decrease in PAP and increases of Pmean, lung compliance and PaO2 were observed during PCV compared with VCV (P ＜ 0.05). There were no differences in hemodynamic parameters between VCV and PCV. Conclusions: Our results demonstrated that PCV may be an effective method of ventilation during gynecologic laparoscopy in terms of improved oxygenation and minimizing adverse respiratory mechanics. [ABSTRACT FROM AUTHOR]

This study is to raise the utilization of genetic resources of wheat (Triticum aestivum L.) landrace from East Asia (Korea, Japan, and China) by evaluating genetic variation related to end use quality concerned to bread making quality and early maturity, two very important characteristics of Korean wheat cropping system. To clarify the allelic variation of Glu-1 loci which decides HMW glutenin subunit composition, SDS-PAGE and DNA marker analysis were conducted by using 485 East Asian landrace wheat accessions in National Agrobiodiversity Center, RDA and NIAS genebank. And useful accessions getting full mark of glu-1 score and early maturity were selected to enhance the utilization of genetic resources to Korean wheat breeding. In this study, wheats from China showed the distinct characteristic. Whereas Glu-A1c (null) and Glu-B1b (7+8) allele are the most frequent in Korean and Japanese accessions, Glu-A1a (2*) and Glu-B1c (7*+9) are the most in Chinese accessions. When it comes to unique composition, Glu-B1f (13+16) and Glu-D1e (2+10) subunits are only in Chinese resources. Glu-B1d (6+8), Glu-B1e (20), Glu-D1b (7+8), and Glu-D1c (4+1) subunits are only in Korean resources. The accessions from China also has high PIC value (0.53) compared to ones from Korea (0.35) and Japan (0.35). Grouping by UPGMA analysis of combination of Glu-1 allele, most accessions from Korea and Japan are in the same group, but most Chinese ones were distinguished as the distinctive group. The evaluation of bread baking quality by Glu-1 scoring system, 26 accessions got full marks. Among them, 16 accessions from China were also matured before early June, suitable to Korean cropping system. Especially, 3 accessions (K151847, K151865, K151962) had very early maturity, matured in late May. These genetic resources, having good gluten composition and early maturity, are expected to widely be used for Korean wheat breeding. [ABSTRACT FROM AUTHOR]

This study was conducted to compare the agricultural characteristics of total 444 common bean accessions from Korea (296), China (76), and El Salvador (72). Days to flowering were ranged from 41 to 83 days with an average of 61 days. Days to sowing to maturing were ranged from 86 to 143 days with an average of 104 days. Common beans from El Salvador tend to bloom and mature 3 to 7 days earlier than Korea and China accessions. In growth habit, over 50% of Korea and China accessions were indeterminate and climbing type, but 90.1% from El Salvador were Semi-determinate and climbing type. Qualitative traits were much different among three countries. Eighty-two percentage of immature pod colors were dark pink from El Salvador, but many of those were pale yellow from Korea (77.6%) and China (61.8%). Seed shapes were divided into four types of round, oval, cubic and kidney type, and the highest percentage of those were 30.4% with kidney type. The highest of those was 36.6% with oval type from Korea, 55.3% with kidney type from China and 79.2% with cubic type from El Salvador. Morphological characteristics of common bean from El Salvador were much different from those of Korea and China, which is necessary to collect more germplasm from its native and expand genetic diversity of common beans. Four hundred thirty-five common beans from Korea, China and El Salvador were analyzed using SSR markers. Ninety-two alleles were detected with a lowest of 6 at the BM161, BM181 and a highest of 18 at the BM154, BM160. The average polymorphism information content (PIC) was 0.72. To similar with population size among three countries, 292 Korean accessions divided four replications with 73 accessions. As a result genetic diversity was the highest of 0.73 in Chinese populations, while the lowest of 0.48 in El Salvador populations. [ABSTRACT FROM AUTHOR]

Purpose: Giantcell-rich osteosarcoma (GCRO) is a rare subtype of osteosarcoma. We reviewed; 1) radiological finding of GCRO and clinical impression-related diagnostic workup at referral center, 2) diagnostic delay until a proper diagnosis is made, 3) impact of diagnostic delay on the oncologic outcome. Materials and Methods: We reviewed 17 patients with GCRO. We investigated the plain radiographic finding, tumor size and location, presence of pathologic fracture, clinical impression and pathological diagnosis at referral center, diagnostic delay, definitive treatment, local recurrence, metastasis, and survival rate. Results: Eleven cases (64.7%) showed a plain radiographically, purely osteolytic pattern while 6 cases (35.3%) showed mixed osteolytic and sclerotic lesion. Diagnosis at primary center was osteosarcoma in 7 (41.2%), giant cell tumor in 7 (41.2%), and benign bone tumor in 3 (17.6%). Six patients (35.3%) experienced diagnostic delay. Mean diagnostic delay was 3.1 months (1 to 8). At final follow-up 5-year actuarial survival rate of 17 patients was 65%±25%. Although 11 patients without diagnostic delay showed a tendency of high survival over 6 patients with diagnostic problem, there was no statistical significance (p=0.14). Conclusion: GCRO is a rare subtype of osteosarcoma simulating giant cell tumor both pathologically and radiologically. Careful diagnostic approach is required in order not to misdiagnose this malignant tumor. [ABSTRACT FROM AUTHOR]

In recent years, endoscopic sinus marsupialization has become the treatment of choice for the treatment of paranasal sinus mucoceles due to its noninvasiveness and successful outcome. However, mucoceles located at the lateral portion of the frontal sinus and protruding into the orbit with erosion of the frontal sinus floor arestill difficult to address with standard endoscopic sinus surgery techniques. Here, we report a case of a mucocele located at the lateral side of the frontal sinus and successfully marsupialized with a transblepharoplasty approach combined with an endoscopic approach. [ABSTRACT FROM AUTHOR]

A female domestic ferret (Mustela putorius furo) presented to a veterinary clinic with a clinical history of anorexia and poor body condition. Due to gradual deterioration of the body condition, explorative laparotomy was performed. Diffusely, the mesentery was severely thickened and adhered with prominent mesenteric lymph nodes. A portion of the mesentery and mesenteric lymph nodes were biopsied and fixed. Microscopic analysis revealed severe pyogranulomatous peritonitis and lymphadenitis, but staining revealed no bacterial organisms. However, immunohistochemistry for feline coronavirus exhibited strong immunoreactivity, primarily in the macrophages. Based on these results, the case was diagnosed as ferret coronavirus infection. [ABSTRACT FROM AUTHOR]

Breeding wheat cultivars with high nitrogen use efficiency is crucial for sustainable agriculture. In this study, 130 durum wheat accessions from 53 countries were cultivated under two nitrogen fertilization levels to investigate variations in agronomic traits and identify accessions suitable for low-nitrogen conditions. Under no nitrogen fertilization, SPAD value (-99.2), flag leaf length (−15.8 mm), grain area (−0.52 mm² ), grain length (−0.27 mm), thousand-grain weight (+5.2 g), and grain protein content (−4.2%) showed significant differences compared to that under standard nitrogen fertilization. Among these traits, the SPAD value exhibited a strong positive correlation with protein content in the absence of nitrogen fertilization, suggesting its potential as an indicator for selecting germplasm with superior nitrogen use efficiency. Hierarchical cluster analysis, based on the differences in the six traits under the two nitrogen fertilization levels, classified the 130 durum wheat accessions into three groups (Groups 1, 2, and 3). Accessions in Group 2 exhibited superior adaptability under no nitrogen fertilization compared with those in the other two groups. We identified seven accessions in Group 2 that exhibited minimal decreases in SPAD values and protein content under no nitrogen fertilization for use in wheat breeding programs aimed at developing cultivars with high nitrogen use efficiencies. [ABSTRACT FROM AUTHOR]

To better understand the morphological variation in the 189 accessions of cultivated var. frutescens of Perilla crop preserved at the RDA-Genebank in South Korea, morphological characteristics were investigated using seven traits related to leaf quality. In the principal component analysis (PCA), the first and second principal components accounted for 28.9% and 19.7% of the total variance, respectively. In the first component, leaf color (QL1) and stem color (QL3) contributed positively, whereas the flowering period (QL5) and degree of pubescence (QL6) contributed in a negative manner. In the second component, QL5 and QL6 contributed positively, whereas the fragrance of plants (QL7) contributed negatively. The results of PCA showed that the 189 Perilla accessions were clearly divided into three groups based on the 1st axis (X-axis), except for some accessions. However, the Perilla accessions collected in South Korea and abroad did not show a clear geographical distribution between the collection areas. Correlation analysis among the seven traits of 189 Perilla accessions showed a positive correlation coefficient for the combination of QL1 and QL3, and QL5 and QL6, and a negative correlation for the combination of color of the reverse side of the leaf and QL6, and QL5 and QL7. Therefore, the results of this study will provide useful information for the selection of useful resources for the development of leafy vegetable varieties of the Perilla crop and the preservation and management of genetic resources of the Perilla crop preserved at the RDA-Genebank in South Korea. [ABSTRACT FROM AUTHOR]

Recently, crossbreeding between Asian rice (O. sativa) and African rice (O. glaberrima) has become an important solution for hunger refugees and food problems in Africa by improving grain yield. O. glaberrima exhibits important traits such as stress tolerance, and genetic diversity evaluation and structural analysis of agronomic traits have been conducted. In this study, 11 yield-related agricultural traits were analyzed in 45 lines of O. sativa and 28 lines of O. glaberrima under Korean climatic conditions. Through cluster analysis using the investigated yield-related traits, O. sativa and O. glaberrima were grouped into clusters by characterizing the remaining traits, except for the number of spikelets, grain width, and grain thickness. The number of spikelets was highly influenced by the environment and had the greatest variation, whereas grain width showed the least variation. In addition, rice yield components are quantitative traits, and in breeding to improve yield, it is important to analyze the interaction of agricultural traits and the influence of the environment to maintain an optimal balance and improve plant potential. Although O. sativa was found to exhibit different agricultural traits depending on its ecotype, it still belonged to the same group when clustered. The results of this study provide basic information on the yield-related agronomic characteristics of O. sativa and O. glaberrima under Korean climatic conditions, suggesting that O. glaberrima can be used as breeding material to diversify Korean rice genetic resources. [ABSTRACT FROM AUTHOR]