본 논문은 쇼팽의 음악에서 자주 나타나는 반음계적 어법 중 조성적⋅모티브적 반음 관계가 어떻게 확장되어 사용되는지 ≪녹턴 Bb단조≫를 중심으로 살펴보고자 한다. 본 문에서는 먼저 이 녹턴의 중간 부분에서 나타나는 반음 관계의 조성에 초점을 맞추어 이러한 진행이 야기하는 조성적 혼란과 음도 변환에 대해 논의한다. 또한 반음 관계를 3도 관계 전조와 비교함으로써 쇼팽의 음악에서 나타나는 반음 관계가 지니는 독특한 특징을 구체적으로 살펴본다. 또한 ≪녹턴 Bb단조≫에서 이러한 반음 관계는 조성 관계 뿐 아니라 모티브적 디자인과도 밀접하게 연관되어 있다는 점에 주목하여 작곡가가 반음 모티브를 단지 음악의 표면적 효과뿐 아니라 작품 전체에 수반된 음고 구조의 요소로 어떻게 사용하고 있는지 분석한다.

대법원 2023. 1. 12. 선고 2021다201184 판결(이하 ‘대상판결’)은 유신 정권 긴급조치로 인한 국가배상청구권의 소멸시효가 완성되지 않았다고 본 판결이다. 대상판결은 긴급조치로 인한 국가배상책임을 인정한 대법원 202 2. 8. 30. 선고 2018다212610 전원합의체판결의 후속 판결이다. 대법원은 대상판결에서 불법행위에 관한 소멸시효 특칙인 민법 제766조에도 권리를 행사할 수 있는 때로부터 소멸시효가 진행한다는 민법 제166조 제1항이 적 용된다고 전제한 뒤, 원고의 국가배상청구가 사실상 불가능한 상황이 장기간 지속되어 왔음에 주목하여 원고가 가지는 국가배상청구권의 소멸시효 기산점 을 뒤로 늦추었다. 이로써 대상판결 사안에서 소멸시효 완성은 부정되었고 피해자의 권리보호 가능성이 확장되었다. 긴급조치라는 역사적 과오에 대한 실질적인 피해 회복도 구현할 수 있게 되었다. 판결 사안에 드러난 피해자와 가해자의 상호관계, 이들이 처해 있던 상황과 이들 각각에 대한 비난 가능성, 나아가 긴급조치가 가지는 역사적, 사회적 맥락 및 그 피해자 구제라는 역사 적, 사회적 요청, 그리고 이에 결부된 공적 가치와 이익을 고려한다면 대상판 결과 같이 소멸시효 기산점을 늦춤으로써 시간의 경과로 발생한 법적 위험을 국가에 종국적으로 부담시키는 것이 타당하다. 국민의 기본권을 보장해야 할 국가가 불법행위를 저지르고도 국가 스스로 오랫동안 그 기본권 침해로 인한 사법적 구제를 막아 왔다는 사안의 특수성에 비추어 볼 때도 그러하다.

Purpose: This study analyzed domestic studies on blended learning among nursing students to identify research trends and future directions. Methods: This scoping review was conducted following the process suggested by Arksey and O’Malley: 1) identifying the research questions; 2) searching for relevant studies; 3) study selection; 4) charting the data; 5) collating, summarizing, and reporting the results; and 6) optional consultation. Relevant studies were searched using the keywords “blended learning” and “nursing” in the domestic databases RISS, KISS, and DBpia. The selection and exclusion criteria were applied to 203 articles, and 34 were finally selected. Results: The final 34 studies included 30 quantitative and four qualitative studies. Most of the studies were experimental studies. In undergraduate nursing education, blended learning was utilized more in the classroom than in the lab or clinical setting. Furthermore, it was mainly applied by combining online and offline approaches. It improved learning satisfaction, critical thinking, clinical performance, and self-directed learning ability. Conclusion: Research on blended learning in nursing education has increased over time. Blended learning positively affects learning satisfaction and learning ability in nursing students; thus, it is expected that this could be effectively utilized in both the classroom and lab or in clinical teaching for nursing students. Therefore, future studies using various research methods should be expanded, and systematic reviews and meta-analyses are recommended.

Purpose: This study explored illness experiences and the demands for a health-related program tailored to individuals with chronic disease at one of the Korean Seon Centers. It also utilized this information as foundational data for developing a program tailored to their needs. Methods: The study utilized focus group interviews to collect data from members of one of the Korean Seon centers who have chronic disease, regarding their illness experiences and their expectations for disease management programs. The collected data was then analyzed using the qualitative content analysis method. Results: The analysis yielded five overarching themes and 14 subthemes. These themes included opposing responses to disease diagnosis, reflections on the causes of disease, efforts toward disease recovery, obstacles to disease recovery, and the need for a customized disease management program. Conclusion: The findings highlighted the challenges the participants faced in their disease recovery process. They expressed a strong desire for a comprehensive management program that incorporates in-depth information, experience sharing, and education. Such a program would empower individuals to take control of their physical and mental well-being.

Purpose: This study aimed to understand the in-depth experiences of infection control liaison staff (ICLS) in hospitals. Methods: This qualitative study applied Colaizzi’s phenomenological research method and targeted 12 healthcare workers in various occupations with experience as ICLS in the departments of a general tertiary hospital in Seoul and a general hospital in Gyeonggi-do. Data were collected through individual in-depth interviews from February 21, 2022, to April 30, 2022, and data analysis was conducted in a circular structure based on Colaizzi’s phenomenological research method. Results: A total of 32 themes and 14 theme clusters were derived from 132 meaningful statements, resulting in six categories. The six categories are “A prepared mind to infection control”, “The initial burden weighing on one’s shoulders”, “Facing difficulties due to inadequate work support”, “Overcoming with cooperation and rewarding”, “The transformed patient and work environment in my journey of personal growth”, and “Finding support measures for ICLS”. Conclusion: The results of this study are, expected to help understand the meaning and value of ICLS in medical institution departments. Based on this, it will be possible to contribute to preparing primary interventions for education and capacity development, support measures, and system improvement for infection control personnel in medical institution departments.

Purpose: This study aims to explore the students’ experiences of taking class in nursing philosophy at the graduate school of nursing. Methods: Data were collected through individual in-depth interviews with 18 participants who took nursing philosophy class. Core question was 'What is your experience of taking nursing philosophy class?' Verbatim transcripts were analyzed using content analysis. Results: Qualitative data analysis revealed nine theme clusters in four categories; 'The distance from philosophy that is too far to be friendly’, ‘Finding the academic roots of nursing',’The way to find answers through creative insights' and ‘Presenting a vision of nursing through reflection and maturity'. Conclusion: Nursing graduate students initially encountered challenging thoughts and a sense of detachment from reality when they embarked on their nursing philosophy class. However, nursing philosophy classes are essential for uncovering the academic foundations of nursing science, fostering creative insights, and navigating the actual clinical fields. This is particularly crucial because nurses frequently encounter numerous ethical dilemmas and critical decision-making situations. Nursing philosophy classes should be mandated as a required course for nursing graduate students, as they are responsible for shaping the future of nursing scholars.

Purpose: As the coronavirus disease 2019 (COVID-19) emerged as a global crisis in 2020, nursing students experienced an abrupt transition from offline to online classes. An in-depth understanding of the online learning experiences of nursing students can be used to reorganize nursing education during the pandemic. Therefore, this study explored the online learning experiences of nursing students during the COVID-19 pandemic. Methods: A descriptive qualitative design was employed. This study used purposive sampling to recruit 20 nursing students from a nursing college. Data were collected between November 2021 and March 2022 using semi-structured focus groups or one-to-one in-depth interviews. The collected data were analyzed using inductive content analysis. Results: Five main categories emerged from the analysis: (a) ambivalence toward rapidly changing learning methods, (b) becoming familiar with online learning, (c) facing the limitations of online learning environment, (d) discovering the charm of online learning, and (e) making suggestions for future online learning. Conclusion: Nursing students experienced disappointments and concerns about online learning classes in rapidly changing situations but also experienced an efficient aspect. Psychological support and the latest information should be provided to nursing students who may experience psychological distress during this pandemic. Additionally, learning strategies and methods should be reorganized to reflect the characteristics of nursing courses and the preferences of nursing students.

Purpose: This study aimed to explore advanced response policies and psychological and emotional support measures for early infected people in the event of an infectious disease by analyzing the experiences of self-employed women who experienced confirmation in the early stages of the coronavirus disease 2019(COVID-19) pandemic. Methods: Data were collected through in-depth interviews with six experiences of self-employed women confirmed with COVID-19 in the early stages of the pandemic selected through the intentional sampling process, and then analyzed and interpreted through Interpretative Phenomenological Analysis (IPA). Results: Through analyzing the meaningful statement of the study participants, several themes were identified, including “The pressure of dying from an incurable illness”, “The fear of quarantine and the fear of death”, “The difficulty of being a self-employed woman”, “The pain of social stigma”, “The driving force of one’s overcoming”, and “Expansion of perspective due to new experiences”. Conclusion: The study found that participants experienced anxiety and fear during the transfer process and admission to the facility after confirmation, due to the lack of guidance and face-to-face interactions. The non-face-to-face treatment increased their anxiety, as they could not receive accurate information about their health conditions and care. This highlights the impact of inaccurate information regarding COVID-19 and media reports focusing on severely ill patients and deaths. In addition, the study participants experienced social stigma caused by COVID-19, resulting in changes in their interpersonal relationships and life attitudes. Implications are suggested based on the results of this study.

Purpose: This study explored life experiences and meaning attributed to them by older men living alone during the pandemic of coronavirus disease 2019 (COVID-19). Methods: Data were collected from June to July 2022 through face-to-face in-depth interviews with 14 older men living alone and analyzed using the thematic analysis method suggested by Braun and Clarke. Results: The analysis revealed four themes and eight subthemes. 1) Unfamiliar daily life faced in old age due to COVID-19; 2) living a difficult life in a stopped society; 3) a life of constant effort amid change; and 4) daily life adjusting to the new normal amid regret. The participants volunteered to be secluded to adapt to their changed daily life in an isolated society, which led to depression. As time passed, they tried to adapt to their new daily lives by communicating untactfully to shorten their physical distance. Conclusion: This study suggests that it is necessary to understand socially vulnerable classes in national disaster situations and the need for various policies to respond to social isolation. In the future, developing an intervention that allows older men living alone to actively adapt to a changing society and verify its effectiveness is necessary.

Transition metal oxides formed by a single or heterogeneous combination of transition metal ions and oxygen ions have various types of crystal structures, which can be classified as layered structures and non-layered structures. With non-layered structures, it is difficult to realize a two-dimensional structure using conventional synthesis methods. In this study, we report the synthesis of cobalt oxide into wafer-scale nanosheets using a surfactant-assisted method. A monolayer of ionized surfactant at the water-air interface acts as a flexible template for direct cobalt oxide crystallization below. The nanosheets synthesized on the water surface can be easily transferred to an arbitrary substrate. In addition, the synthesizing morphological and crystal structures of the nanosheets were analyzed according to the reaction temperatures. The electrochemical properties of the synthesized nanosheets were also measured at each temperature. The nanosheets synthesized at 70 °C exhibited higher catalytic properties for the oxygen evolution reaction than those synthesized at other temperatures. This work suggests the possibility of changing material performance by adjusting synthesis temperature when synthesizing 2D nanomaterials using a wide range of functional oxides, resulting in improved physical properties.

As a filler metal for lowering the melting point of Ag, many alloy metal candidates have emerged, such as cadmium, with zinc, manganese, nickel, and titanium as active metals. However, since cadmium is known to be harmful to the human body, Cd-free filler metals are now mainly used. Still, no study has been conducted comparing the characteristics of joints prepared with and without cadmium. In addition, studies have yet to be conducted comparing the typical characteristics of brazing filler metals with special structures, and the joint characteristics of brazing filler metals with available frames. In this study, the characteristics of junctions of silver-based intercalation metals were compared based on the type of filler metal additives, using a special structure, a filler metal sandwich structure, to protect the internal base metal. The general filler metal was compared using the structure, and the thickness of the filler metal according to the thickness was reached. A comparison of the characteristics of the junction was conducted to identify the characteristics of an intersection of silver-based brazing filler metal and the effect on joint strength. Each filler metal’s collective tensile strength was measured, and the relationship between joint characteristics and tensile joint strength was explored. The junction was estimated through micro strength measurement, contact angle measurement with the base metal when the filler metal was melted, XRD image observation, composition analysis for each phase through SEM-EDS, and microstructure phase acquisition.

This paper reports the results of an experimental examination using X-rays to test annealing materials for lapped bearing steel (STB2), to confirm the validity of the weighted averaging analysis method. The distribution behavior for the sin diagram and the presence or absence of differences in the peak method, half-value breadth method, and centroid method were investigated. When lapping the annealed bearing steel (STB2) material, a residual stress state with a non-directional steep gradient appeared in the surface layer, and it was found that the weighted averaging analysis method was effective. If there is a steep stress gradient, the sin diagram is curved and the diffraction intensity distribution curve becomes asymmetric, resulting in a difference between the peak method, half-value breadth method, and centroid method. This phenomenon was evident when the stress gradient was more than 2~3 kg/mm2/μm. In this case, if the position of the diffraction line is determined using the centroid method and the weighted averaging analysis method is applied, the stress value on the surface and the stress gradient under the surface can be obtained more accurately. When the stress gradient becomes a problem, since the curvature of the sin diagram appears clearly in the region of sin > 0.5, it is necessary to increase the inclination angle  as much as possible. In the case of a lapping layer, a more accurate value can be obtained by considering  in the weighted averaging analysis method. In an isotropic biaxial residual stress state, the presence or absence of  can be determined as the presence or absence of strain for sin≈0.4.

Micro-electronic gas sensor devices were developed for the detection of carbon monoxide (CO), nitrogen oxides (NOx), ammonia (NH3), and formaldehyde (HCHO), as well as binary mixed-gas systems. Four gas sensing materials for different target gases, Pd-SnO2 for CO, In2O3 for NOx, Ru-WO3 for NH3, and SnO2-ZnO for HCHO, were synthesized using a sol-gel method, and sensor devices were then fabricated using a micro sensor platform. The gas sensing behavior and sensor response to the gas mixture were examined for six mixed gas systems using the experimental data in MEMS gas sensor arrays in sole gases and their mixtures. The gas sensing behavior with the mixed gas system suggests that specific adsorption and selective activation of the adsorption sites might occur in gas mixtures, and allow selectivity for the adsorption of a particular gas. The careful pattern recognition of sensing data obtained by the sensor array made it possible to distinguish a gas species from a gas mixture and to measure its concentration.

This study uses first-principles calculations to investigate the mechanical properties and effect of strain on the electronic properties of the 2D material 1H-PbX2 (X: S, Se). Firstly, the stability of the 1H Pb-dichalcogenide structures was evaluated using Born’s criteria. The obtained results show that the 1H-PbS2 material possesses the greatest ideal strength of 3.48 N/m, with 3.68 N/m for 1H-PbSe2 in biaxial strain. In addition, 1H-PbS2 and 1H-PbSe2 are direct semiconductors at equilibrium with band gaps of 2.30 eV and 1.90 eV, respectively. The band gap was investigated and remained almost unchanged under the strain εxx but altered significantly at strains εyy and εbia. At the fracture strain in the biaxial direction (19 %), the band gap of 1H-PbS2 decreases about 60 %, and that of 1H-PbSe2 decreases about 50 %. 1H-PbS2 and 1H-PbSe2 can convert from direct to indirect semiconductor under the strain εyy. Our findings reveal that the two structures have significant potential for application in nanoelectronic devices.

Water electrolysis holds great potential as a method for producing renewable hydrogen fuel at large-scale, and to replace the fossil fuels responsible for greenhouse gases emissions and global climate change. To reduce the cost of hydrogen and make it competitive against fossil fuels, the efficiency of green hydrogen production should be maximized. This requires superior electrocatalysts to reduce the reaction energy barriers. The development of catalytic materials has mostly relied on empirical, trial-and-error methods because of the complicated, multidimensional, and dynamic nature of catalysis, requiring significant time and effort to find optimized multicomponent catalysts under a variety of reaction conditions. The ultimate goal for all researchers in the materials science and engineering field is the rational and efficient design of materials with desired performance. Discovering and understanding new catalysts with desired properties is at the heart of materials science research. This process can benefit from machine learning (ML), given the complex nature of catalytic reactions and vast range of candidate materials. This review summarizes recent achievements in catalysts discovery for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The basic concepts of ML algorithms and practical guides for materials scientists are also demonstrated. The challenges and strategies of applying ML are discussed, which should be collaboratively addressed by materials scientists and ML communities. The ultimate integration of ML in catalyst development is expected to accelerate the design, discovery, optimization, and interpretation of superior electrocatalysts, to realize a carbon-free ecosystem based on green hydrogen.

Background: Individuals with scapular winging have a weak serratus anterior (SA) muscle, and to compensate, the pectoralis major (PM) and upper trapezius (UT) muscles excessively activate, which can cause upper extremity dysfunction. This study aimed to compare the effects of isometric horizontal abduction (IHA) on SA, PM, and UT muscle activity, as well as the SA/PM and SA/UT muscle activity ratios during knee push-up plus (KPP) at 90° and 120° of shoulder flexion. Objects: This study aimed to compare the effects of IHA on SA, PM, and UT muscle activity, as well as the SA/PM and SA/UT muscle activity ratios during KPP at 90° and 120° of shoulder flexion. Methods: This study, conducted at a university research laboratory, included 20 individuals with scapular winging. Participants performed KPP with and without IHA at 90° (KPP90) and 120° (KPP120) of shoulder flexion. SA, PM, and UT muscle activity were measured using surface electromyography. Results: PM activity in KPP90 with IHA was significantly lower than KPP90 and in KPP120 was significantly lower than KPP90. UT activity was significantly greater with IHA than without IHA and at 120° than 90° of shoulder flexion. SA/PM muscle activity ratio was significantly higher in KPP90 with IHA than without IHA and in KPP120 than in KPP90. SA/UT muscle activity ratio was significantly lower with IHA than without IHA. Conclusion: KPP90 with IHA and KPP120 are effective exercises to reduce PM activity and increase SA/PM muscle activity ratio. However, applying IHA in KPP90 also reduces SA/UT muscle activity ratio, implying that it would be preferable to apply KPP120 in individuals overusing their UT muscles.

Background: The gluteus medius (Gmed) plays a critical role in maintaining frontal plane stability of the pelvis during functional activities, such as one-leg lifting. Side-lying hip abduction (SHA) has been used as a dynamic test to evaluate Gmed function. However, the abduction force of the lower leg against the floor is not controlled during SHA. Therefore, hip abduction performance with contralateral adduction in the side-lying position (HAPCA) can be proposed as an alternative method to assess performance of hip abduction. If the number of HAPCA is related to the lateral pelvic shift distance, a new quantitative measurement for hip abductor function may be presented. Objects: This study aimed to investigate the relationship between the number of successful HAPCA and the lateral pelvic shift distance during one-leg lifting. Methods: Thirty healthy participants were recruited, and lateral pelvic shift distance was measured during one-leg lifting test using two-dimensional analysis. The number of successful HAPCA was counted when participants touched both target bars at the beat of a metronome. Results: There was a negative correlation between the number of HAPCA and lateral pelvic shift distance during one-leg lifting (r = –0.630, p < 0.05). The number of HAPCA accounted for 39.7% of the variance in the lateral pelvic shift distance during one-leg lifting (F = 18.454, p < 0.001). Conclusion: The number of successful HAPCA is significantly correlated with lateral pelvic shift distance during one-leg lifting. This finding suggests that HAPCA can be proposed as a new measurement for hip abductor performance and more research is needed on its relationship with hip abductor strength.

Background: The gluteus maximus (GM) muscle comprise the lumbo-pelvic complex and is an important stabilizing muscle during leg extension. In patients with low back pain (LBP) with weakness of the GM, spine leads to compensatory muscle activities such as instantaneous increase of the erector spinae (ES) muscle activity. Four-point kneeling arm and leg lift (FKALL) is most common types of lumbopelvic and GM muscles strengthening exercise. We assumed that altered hip position during FKALL may increase thoraco-lumbar stabilizer like GM activity more effectively method. Objects: The purpose of this study was investigated that effects of the three exercise postures on the right-sided GM, internal oblique (IO), external oblique (EO), and multifidus (MF) muscle activities and pelvic kinematic during FKALL. Methods: Twenty eight healthy individuals participated in this study. The exercises were performed three conditions of FKALL (pure FKALL, FKALL with 120° hip flexion of the supporting leg, FKALL with 30° hip abduction of the lifted leg). Participants performed FKALL exercises three times each condition, and motion sensor used to measure pelvic tilt and rotation angle. Results: This study demonstrated that no significant change in pelvic angle during hip movement in the FKALL (p > 0.05). However, the MF and GM muscle activities in FKALL with hip flexion and hip abduction is greater than pure FKALL position (p < 0.001). Conclusion: Our finding suggests that change the posture of the hip joint to facilitate GM muscle activation during trunk stabilization exercises such as the FKALL.

Background: The International Classification of Functioning, Disability and Health (ICF) model, created by the World Health Organization, provides a theoretical framework that can be applied in the diagnosis and treatment of various disorders. Objects: Our research purposed to ascertain the relationship between structure/function, activity, and participation domain variables of the ICF and pain, pain-associated disability, activities of daily living (ADL), and quality of life in patients with chronic low back pain (LBP). Methods: Two-hundred patients with chronic LBP (mean age: 35.5 ± 8.8 years, females, n = 40) were recruited from hospital and community settings. We evaluated the body structure/ function domain variable using the Numeric Pain Rating Scale (NPRS) and Roland–Morris disability (RMD) questionnaire. To evaluate the activity domain variable, we used the Oswestry Disability Index (ODI) and Quebec Back Pain Disability Scale (QBDS). For clinical outcome measures, we used Short-form 12 (SF-12). Pearson’s correlation coefficient was used to ascertain the relationships among the variables (p < 0.05). All the participants with LBP received 30 minutes of conventional physical therapy 3 days/week for 4 weeks. Results: There were significant correlations between the body structure/function domain (NPRS and RMD questionnaire), activity domain (ODI and QBDS), and participation domain variables (SF-12), rending from pre-intervention (r = –0.723 to 0.783) and postintervention (r = –0.742 to 0.757, p < 0.05). Conclusion: The identification of a significant difference between these domain variables point to important relationships between pain, disability, performance of ADL, and quality in participants with LBP.

Background: Despite the fact that aquatic exercise is one of the most popular alternative treatment methods for children with cerebral palsy (CP), there are few research regarding its effectiveness. Objects: The purpose of this study was to examine the effects of aquatic exercise on upper extremity function and postural control during reaching in children with CP. Methods: Ten participants (eight males and two females; 4–10 years; Gross Motor Function Classification System levels II–IV) with spastic diplegia were recruited to this study. The aquatic exercise program consisted of four modified movements that were selected from the Halliwick 10-point program to enhance upper extremity and trunk movements. The participants attended treatment two times a week for 6 weeks, averaging 35 minutes each session. The Box and Block Test (BBT), transferring pennies in the Bruininks-Oseretsky Test (BOT), and pediatric reaching test (PRT) scores were used as clinical measures. Three-dimensional motion analysis system was used to collect and analyze kinematic data. Differences in BBT and BOT values among pre-treatment, post-treatment, and retention (after 3 weeks) were analyzed using a Friedman test. In addition, the PRT scores and variables (movement time, hand velocity, straightness ratio, and number of movement units) from the three-dimensional motion analysis were tested using a Wilcoxon signed-rank test. The significance level was established at p < 0.05. When the results appeared to be statistically significant, a post-hoc test for multiple comparisons was performed with the Wilcoxon signed-rank test. Results: All clinical measures, which included BBT, transferring pennies of BOT, and PRT, were significantly increased between pre-intervention and post-intervention scores and between pre-intervention and retention scores after treatment (p = 0.001). Three-dimensional motion analysis mostly were significantly improved after treatment (p = 0.001). Conclusion: Aquatic exercise may help to improve body function, activity, and participation in children with varying types of physical disabilities.