본 연구는 여대생을 대상으로 코로나19 스트레스가 월경전증후군에 미치는 영향과 우울과 월경 전증후군 대처의 매개효과를 파악하기 위한 서술적 조사연구이다. 연구대상자는 S시에 소재한 C대학에 재 학 중인 여대생을 대상으로 2021년 11월 11일에서 11월 30일까지 20일간 온라인 설문조사를 통해 자료를 수집하였다. 총 161부에 대한 자료를 분석한 연구결과 코로나19 스트레스는 월경전증후군(r=.383, p<.001), 우울(r=.436, p<.001)과 양의 상관관계가 있었으며, 월경전증후군 대처는 월경전증후군에서만 상 관관계가 있는 것으로 확인되었다(r=.190, p=.016). 코로나19 스트레스와 월경전증후군 사이의 우울 및 월 경전증후군 대처의 매개효과를 확인한 결과 코로나19 스트레스는 월경전증후군(β=4.907, p=.002), 우울 (β=6.780, p<.001)에 대한 직접효과가 유의하였으며, 우울은 월경전증후군에(β=.383, p=<.001), 월경전 증후군 대처는 월경전증후군(β=4.292, p=.030)에 각각 직접효과가 있는 것으로 나타났다. 코로나19 스트 레스와 월경전증후군의 관계에서 매개작용을 검증하기 위한 간접효과에서는 우울을 경유하는 경로에서만 통계적으로 유의한 효과가 있는 것으로 확인되었다(95% CI, 1.282-4.140). 따라서 코로나19 등의 신종 전 염병 유행 및 팬데믹 상황을 대비하여 코로나19 스트레스와 같은 관련 스트레스를 관리하여 우울을 감소시 키고 월경전증후군 증상을 완화하기 위한 중재전략 개발이 필요하다.

선박의 안전운항을 도모하기 위한 필수적 요소 중 하나인 복원성 확보에 대한 항해사의 해기지식은 선박의 대형화 및 자율운 항선박 출현 등 선박 기술의 진보와 더불어 향상되고 개선되어야 한다. 이에 따라 본 연구에서는 항해사를 대상으로 복원성에 관한 설문 조사를 수행하였고, 일반적 특성을 이용하여 경험적 인지도를 통계분석하였다. 분석 결과, 복원성 기준의 이해도에서 상위직급에서는 높 은 이해도를 갖고 있었으며, 특정 선종에 대한 특별 기준에 대한 이해는 부족한 것으로 나타났다. 전체 응답자의 87.6%가 복원성 평가의 수단으로 Loading computer를 활용하고 있었다. 현장에서 복원성 평가 방법으로 GM 활용이 평균 3.891/5.000점으로 가장 높았으며, 주로 GM과 복원성 기준으로 복원성 확보여부를 판단하였다. 복원성 부족 시, 항해사는 주로 평형수 보충을 통하여 개선하였으며, 소각도 타각 사용으로 안전을 확보하는 운항적 경향도 있었다. 본 연구 결과는 선박 복원성에 대한 항해사의 경험적 인지도를 평가함으로써, 향후 운 항자 중심의 복원성에 관한 교육 개선 및 연구에 중요한 자료로 활용하고자 한다.

우리나라는 기상 악화 속에서 감항성이 확보된 선박만이 항해할 수 있도록 선박출항을 해사안전법에 근거하여 통제하고 있으 나 통제 대상선박 지정에 대한 과학적 평가 결과 및 정량적 근거가 미비하여, 항행안전의 확보와 합리적 출항통제 운영을 위한 개선 의견 이 제기되고 있다. 본 연구는 풍랑 주의보 발효 시 주요 통제대상 선종인 예인선의 실선계측을 통해, 현행 출항통제 기준의 적정성을 평 가하고 현실성 있게 개선될 수 있도록 정량적 근거를 제시하는 것에 연구 목적이 있다. 이를 위해 예인선에 선박의 3축 운동과 선체가속 도를 측정하는 Sensor를 설치하여 유의파고 3m인 해역 내에서 운항하여 선체운동 성능을 계측하였고, 계측된 수치를 내항성능 평가요소 및 한계 값 기준을 바탕으로 비교 분석하였다. 실측 선박은 톤수에 따른 현행 통제기준에서 제외되었으나, 분석 결과 Pitch 값이 Operation 기준을 넘어 항행안전에 위험성이 존재하였다. 본 연구 결과는 선박 출항통제 대상에 대한 검토와 다양한 선종 및 제원을 대표할 수 있는 추가적 실측연구가 필요함을 시사한다.

Boron carbide (B4C) is highly significant in the production of lightweight protective materials when added to aluminum owing to its exceptional mechanical properties. In this study, a method for fabricating Al-B4C composites using high-energy ball milling and directed energy deposition (DED) is presented. Al-4 wt.% B4C composites were fabricated under 21 different laser conditions to analyze the microstructure and mechanical properties at different values of laser power and scan speeds. The composites fabricated at a laser power of 600 W and the same scan speed exhibited the highest hardness and generated the fewest pores. In contrast, the composites fabricated at a laser power of 1000 W exhibited the lowest hardness and generated a significant number of large pores. This can be explained by the influence of the microstructure on the energy density at different values of laser power.

The Ag/WC electrical contacts were prepared via powder metallurgy using 60 wt% Ag, 40 wt% WC, and small amounts of Co3O4 with varying WC particle sizes. After the fabrication of the contact materials, microstructure observations confirmed that WC-1 had an average grain size (AGS) of 0.27 μm, and WC-2 had an AGS of 0.35 μm. The Ag matrix in WC-1 formed fine grains, whereas a significantly larger and continuous growth of the Ag matrix was observed in WC-2. This indicates the different flow behaviors of liquid Ag during the sintering process owing to the different WC sizes. The electrical conductivities of WC-1 and WC-2 were 47.8% and 60.4%, respectively, and had a significant influence on the Ag matrix. In particular, WC-2 exhibited extremely high electrical conductivity owing to its large and continuous Ag-grain matrix. The yield strengths of WC-1 and WC-2 after compression tests were 349.9 MPa and 280.7 MPa, respectively. The high yield strength of WC-1 can be attributed to the Hall–Petch effect, whereas the low yield strength of WC-2 can be explained by the high fraction of high-angle boundaries (HAB) between the WC grains. Furthermore, the relationships between the microstructure, electrical/mechanical properties, and deformation mechanisms were evaluated.

Miae Ahn (2023). “A Study of the /ㅜ/ Replacement of /ㅗ/ in Korean Messenger Corpus”. The Sociolinguistic Journal of Korea, 31(2), 157-176. This study examines the realization of the /ㅜ/ replacement of /ㅗ/ observed at the end of words in the messenger conversation corpus(MCC), comparing it with the results from the “Seoul Corpus(SC; Yoon Y. K. 2020)”. In the "MCC", the frequency of /ㅜ/ replacement of /ㅗ/ was investigated in the following order: postposition, connection ending, and adverbs. Among these, adverbs exhibited the highest realization rate for the /ㅜ/ replacement. In contrast, connection ending and surveys in the SC showed similar frequencies (43.8%, 52.1%). The /ㅜ/ replacement rate for connection ending was found to be 43.8%, while for surveys and adverbs, it was 52.1% and 51.3%, respectively. Furthermore, the analysis revealed that the /ㅜ/ replacement rate of /ㅗ/ was consistently high in all linguistic contexts in the "SC" However, the text-based "MCC" exhibited a lower realization rate for the /ㅜ/ replacement of /ㅗ/ compared with to the natural speech. This discrepancy is attributed to the influence of text-based conversations, which incorporatesphonetic notation consciousness reflecting linguistic norms and the phonetic preferences of the conversation participants. In conclusion, this study provides valuable insights into the realization patterns of the /ㅜ/ replacement in different linguistic contexts, shedding light on the variations between text-based and natural speech corpora.

우리나라는 무기질비료 사용량이 많은 나라 중 하나이다. 그러나 1980년 이후 지속가능농업에 대한 필요성에 의해 1997년 친환경 농업육성법이 제정되었고 지속가능한 농업을 위한 연구로 논, 밭, 시설 및 과수에 대한 비료사용실태조사가 실시되고 있다. 이에 본 연구는 과수 중 대표되는 7작물(배, 포도, 사과, 복숭아, 대추, 단감, 키위)을 대상으로 각 도에서 805농가를 선정하여 실시하였으며, 조사내용은 사용하는 비료의 종류, 사용량 등에 대해 농가를 방문하여 면접 청취조사하였다. 국내 과수작물의 성분별 평균 비료사용량(N-P2O5-K2O)은 30.0-23.8-24.3 kg 10a-1이었으 며 비료 종류별로 구분하였을 때 퇴비 > 유기질비료 > 무기질비료 순으로 사용하고 있었다. 단위면적당 가장 많은 비료를 사용하고 있는 과수는 대추로 질소, 인산 및 칼리를 평균 53.3-42.0-49.5 kg 10a-1을 사용하고 있는 것으로 확인되었다. 앞으로 지속가능 농업과 농업환경의 보전을 위해서는 농가에서 사용하는 비료의 장기간 모니터링 뿐만 아니라 농업인에게 무기질비료, 유기질비료 및 퇴비의 적정사용방법에 대한 교육 및 홍보를 지속적으로 실시해야 될 것으로 판단된다.

This study was conducted to select target fish species as baseline research for accumulation analysis of major hazardous chemicals entering the aquatic ecosystem in Korea and to analyze the impact on fish community. The test bed was selected from a sewage treatment plant, which could directly confirm the impact of the inflow of harmful chemicals, and the Geum River estuary where harmful chemicals introduced into the water system were concentrated. A multivariable metric model was developed to select target candidate fish species for hazardous chemical analysis. Details consisted of seven metrics: (1) commercially useful metric, (2) top-carnivorous species metric, (3) pollution fish indicator metric, (4) tolerance fish metric, (5) common abundant metric, (6) sampling availability (collectability) metric, and (7) widely distributed fish metric. Based on seven metric models for candidate fish species, eight species were selected as target candidates. The co-occurring dominant fish with target candidates was tolerant (50%), indicating that the highest abundance of tolerant species could be used as a water pollution indicator. A multi-metric fish-based model analysis for aquatic ecosystem health evaluation showed that the ecosystem health was diagnosed as “bad conditions”. Physicochemical water quality variables also influenced fish feeding and tolerance guild in the testbed. Eight water quality parameters appeared high at the T1 site, indicating a large impact of discharging water from the sewage treatment plant. T2 site showed massive algal bloom, with chlorophyll concentration about 15 times higher compared to the reference site.

This study was conducted to obtain basic data on domestic wild Lanopila nipponica K specimens collected in Jeollanam-do from 2015 to 2017 to investigate the characteristics of fruit bodies and analyze their nutritional components. L. nipponica K. was mainly found near hills, such as in persimmon fields around hills, on mountain trails, and in bamboo fields. L. nipponica K. occurred from July to mid-October, especially after the rainy season or a typhoon, when the air humidity was increased. Rainfall occurred for 8–15 days during the 20 days before the collection date, and the average temperature was ≥ 23oC. The size of the fruit body was 12.3–28 cm, and the weight varied depending on the size; however, the fruit body was estimated to grow overnight, reaching the size observed at its discovery. As aging progressed, the surface of the fruit body cracked, and it turned dark after 6 days. Spores were lump-shaped when the surface was cut with a knife. When the soil on the surface of the site where the fruit body was located was scratched, a white thread-shaped mycelium expanded. At the time of collection, the flesh of the fruit body was white, but it turned brown and fluffy as maturity progressed. On the sixth day after the mushroom was generated, it produced a pungent odor and became friable, resembling a black cotton ball. The surface of the fruit body was white and had a circular or elliptical shape. Crude protein content tended to be high at 59% of the dry weight. The antioxidant activity, determined using the DPPH radical scavenging analysis method, was 167 vitamin C equivalents/100 g. The spores were brown, approximately 6 μm in size, with protrusions on their surface.

본 연구는 산림에 대한 보건학적 가치 제고를 위하여 기초적 자료를 제공하기 위해 대학생 20명을 대상으로 난대림과 도시의 경관 감상에 따른 생리･심리에 미치는 변화를 파악하고자 수행하였다. 주요 결과는 첫째, 알파파(RA, RFA, RSA)를 측정한 결과, 좌측 후두엽(O1)이 도시경관보 다 난대림 경관을 감상할 때 더 활성화되었다. 둘째, 베타파(RB, RLB, RMB, RHB)를 측정한 결과, 통계적으로 유의미하지 않았다. 셋째, SEF50과 SEF90은 도시경관보다 난대림 경관을 감상하는 것이 더 안정･이완된 상태임을 나타냈지만 SEF90의 전두엽(Fz)을 제외하고는 유의미하지 않았다. 넷째, 기분상태검사(K-POMS-B)를 수행한 결과, 난대림 경관 감상은 긴장, 혼돈, 피로의 부정적인 기분상태는 감소하였고, 긍정적인 기분상태 요인인 활기는 증가하여 종합기분장애 점수는 도시(0.95±10.860)에 비해 난대림(-5.45±5.463)에서 감소하는 유의미한 결과를 확인하였다.

Patients with oral squamous cell carcinoma (OSCC) generally have an elevated expression of homeobox C6 (HOXC6) gene. We found that HOXC6 was the significantly upregulated gene in hypopharyngeal squamous cell carcinoma (FaDu) cells using RNA-seq analysis. However, it remains unclear whether HOXC6 plays a role in tumor process mechanism. Our study aimed to explore the potential oncogenic role and the detailed molecular mechanism of HOXC6 in FaDu cells. In this study, Sirt1 was validated to be overexpressed in FaDu cells and associated with HOXC6 expression. Overexpression of HOXC6 promoted the cell colony formation, whereas inhibition of Sirt1 by Sirt1 inhibitor EX527 reduced cell proliferation/colony formation and migration, and induced apoptosis in HOXC6 overexpressed FaDu cells. Interestingly, mechanistic study showed that EX527 mediated Sirt1 suppression led to decreased HOXC6 expression and upregulation of Sirt1 significantly increased the expression of HOXC6. HOXC6 was shown to cooperate with Sirt1 to enhance cell survival. We propose that HOXC6 promotes cell growth/colony formation, and that the HOXC6 may be a progression of hypopharyngeal carcinoma by activating Sirt1 pathways.

Jogyeongmyo Shrine is the Sijomyo Shrine of the Joseon royal family. It is a representative building that symbolizes Jeonju, the hometown of the Joseon royal family. This study comprehensively analyzes a variety of literature, old maps, and figures, and it investigates the meaning of Jogyeongmyo Shrine as an architectural example as well as its architectural characteristics. The Jogyeongmyo Shrine was built to symbolically demonstrate the superior virtue of the royal ancestors compared to the ancestors of the gentry. King Yeongjo built Jogyeongmyo Shrine, which he considered his greatest achievement, to raise the status of the royal family and exact loyalty from the vassals. Jogyeongmyo Shrine is a unique example of an ceremonial architecture that cannot be observed in China or the previous Korean dynasties. In addition, its architecture looks different from that of ordinary shrines because both Confucian ceremonies and the function of each building were taken into consideration during construction. Although Jogyeongmyo Shrine was preserved without significant changes until the late Joseon dynasty, major modifications were made in all areas except the main shrine area during the Japanese colonial era.

2022년 4월에 군형법 제92조의 6 추행죄에 관하여 나온 대법원 전원합의 체 판결(2019도3047)은 법학방법론적으로 다양한 문제지점들을 담고 있어 서도 관심을 끈다. 그 판결에서 다수의견과 별개의견들 및 반대의견은 적용 법조항의 의미를 두고서 전통적인 법학방법론의 네 가지 방법인 문언, 체계, 역사, 목적은 물론 법해석과 법형성의 구별 및 허용되지 않는 법형성, 헌법합 치적 해석과 헌법정향적 해석, 그리고 법해석 일반론에 이르기까지 상이한 의견을 제시하였다. 특히 다수의견이 법원의 법해석권한을 넘어서 국회나 헌 법재판소의 권한을 침해하는지가 명시적으로 다투어진 점은 법원의 법해석권 한의 한계에 관한 관심을 불러일으켰다. 이 연구에서는 이 판결을 법학방법론상 다음과 같이 분석하고 평가하였다. 1. 문언해석의 차원에서 군형법 추행죄에서 대표적인 예시적 구성요건인 ‘항문성교’는 이성 간에도 가능한 일상적 의미가 아니라 남성 간의 행 위를 가리키는 일종의 전문용어로 해석하는 것이 동 조항의 입법의도를 포함한 역사적 맥락에 부합한다. 이 판결의 다수의견은 이와 달리 그 단어를 일상적 의미로 해석해서 항문성교의 대표적인 예시적 구성요건 으로서의 의미를 탈각시키고 소극적 구성요건을 창설하였다. 법문언에 반하는 이러한 목적론적 축소해석은 민주적 법치국가에서 재판의 법률 구속성 요청에 따르는 엄격한 정당성 심사를 받아야 한다. 2. 체계적, 목적론적 해석의 차원에서 동 조항의 보호법익으로 군기 이외 에 성적 자기결정권을 포함시킨 다수의견은 군형법과 형법의 체계에 맞 지 않다. 3. 역사적 해석의 차원에서 다수의견은 입법자의 의사를 지나치게 경시하 였다. 4. 입법자의 의도에 반하는 법해석 또는 법형성의 정당성은 예외적으로만 인정될 수 있다. 국회의 입법권과 헌법재판소의 위헌법률심판권을 침해 하여 법치국가원리를 침해하기 때문이다. 이 판결 다수의견의 법형성은 그러한 예외적 정당성이 인정되는 경우가 아니다. 5. 헌법합치적 해석은 헌법의 기본권 조항들 뿐 아니라 민주적 법치국가의 권력분립존중 요청에도 부합하게 이루어져야 한다. 이 판결 다수의견은 그런 요청에 부합하지 않아서 헌법합치적 해석으로 타당하지 않다. 결론적으로 이 판결의 다수의견과 별개의견들은 민주적 법치국가 원리에 따라서 존중해야 하는 국회의 입법권과 헌법재판소의 위헌법률심판권을 침해 하여 부당하다.

Purpose: In this study, we developed an integrated simulation practicum and investigated the effectiveness of the practicum for senior nursing students. Methods: Sixty-seven senior nursing students from a university were enrolled in this study and assigned into two groups: experimental (n = 31) and control (n = 36). We developed and applied a 60-hour integrated simulation practicum that spans a 3-week period. The control group performed a traditional clinical practicum. The outcome measures were critical thinking disposition, clinical competence, and practicum satisfaction and the data were analyzed using the SPSS 23.0 software. Results: After the intervention, both experimental and control groups showed significant improvement in critical thinking disposition (p = .017) and clinical competence (p < .001) compared to those of the baseline. Regarding practicum satisfaction, the experimental group showed significantly higher satisfaction than the control group (p = .003). Conclusion: The integrated simulation practicum was an effective program that improved critical thinking, clinical competence, and practicum satisfaction in senior nursing students. To effectively improve critical thinking and acquire clinical competence, which are essential for prospective nurses, nursing students should be exposed more to simulation practicum that reflect environments similar to actual clinical settings for various patients with complex health problems.

PURPOSES : This study aims to suggest how to utilize "standby data" of shared mobility that does not contain personal information and examine whether "standby data" can derive existing shared mobility operation analysis items similarly. METHODS : An existing Personal Mobility (PM) traffic pattern analysis was performed by identifying the user (User ID) and the user's route in a time frame. In this study, the PM traffic pattern analysis focuses on a vehicle (ID of the standby vehicle) and its standby location. We examined whether the items derived from the User ID-based traffic pattern analysis could also be derived from the standby Vehicle ID-based analysis. RESULTS : The analysis showed that all five items (traffic volume by time slot, peak time, average travel time, average travel distance, and average travel speed) of the existing User ID-based PM travel analysis result could be derived similarly using the standby Vehicle ID-based PM traffic analysis. However, the disadvantage is that the average driving distance is calculated as a straight-line distance. It seems possible to overcome this limitation by correcting the average driving distance through linkage analysis with road network data. However, it is not possible to derive the instantaneous maximum speed or acceleration/deceleration. CONCLUSIONS : In an era in which various means of transportation are being introduced, data sharing is not preferred because of legal issues.Consequently, it is difficult to understand the use of new means of transportation and formulate new policies. To address this, data sharing can be active based on standby data that is not related to personal information.

PURPOSES : This study proposes a method for comparative analysis, based on geographic information systems (GIS), that can be used when introducing demand-responsive transit in areas where public transportation is not available. METHODS : To analyze areas where public transportation is neglected, bus stop location information, building location information, and administrative district boundary data for the census were acquired. Geocoding was used for address-based raw data to create a spatial database. Based on the collected data, the proportion of households separated by a certain minimum distance from a bus stop was aggregated and constructed through near analysis. When introducing a demand-responsive transit system, the operational cost was calculated and compared with the existing city bus transportation cost. RESULTS : Results show that the operating costs of introducing demand-responsive transit can be compared and analyzed using the proposed method, for a case study of Daejeon Metropolitan City. CONCLUSIONS : It is economically efficient to avoid the entry of route buses and introduce demand-responsive transit in areas isolated from public transportation where the number of people getting on and off is extremely low.

PURPOSES : During the summer of 2018, a heat wave (temperatures > 33°C) lasted for more than 30 days, causing blow-ups at eight different locations in South Korea. The blow-up phenomenon occurred when the internal temperature of the concrete slab increased. Simultaneously, as the concrete slab expands excessively, the length of the end of the slab increases, thus resulting in a lateral compressive force; when the slab cannot withstand this force, it rises or breaks. Blow-up is caused by a variety of factors, including increased temperature and humidity, accumulation of incompressible substances inside discontinuous surfaces, alkali–silica reactions, and aging of the concrete pavement. Several researchers have presented models to forecast blow-ups, such as the A. D. Kerr and G. Yang models, which have been applied to explain the blow-up phenomenon. However, this model has some limitations. This paper discusses a method to overcome these limitations. METHODS : Buckling, the most important theory describing the blow-up phenomenon, was reviewed, and the buckling principle was confirmed. Subsequently, the input variables of the Kerr and Yang models and the mechanism for predicting the occurrence of blow-ups were identified. The PGBA program was used to confirm the lifetime of the expansion joint and the blow-up occurrence time based on the expansion joint spacing to review the limitations of the two studied models. RESULTS : The Kerr and Yang models did not consider variables such as the expansion joint spacing or length of the integrated adjacent slab. In other words, it is necessary to reconsider the appropriateness of blow-up time predictions in relation to changes in expansion joint spacing and slab length. The expansion joint lifetime and blow-up occurrence time were predicted using the PGBA program. It was confirmed that as the expansion joint spacing increases, the expansion joint lifetime decreases. However, the blow-up occurrence time was shown to be the same (equal to 59 years), which is a limitation of the Kerr and Yang models used in the PGBA program. This resulted in a limitation in which variables for the expansion joint spacing cannot be used. CONCLUSIONS : Through blow-up simulation experiments and actual field data, an appropriate slab length should be determined, and a blow-up model should be developed based on the slab length. If a blow-up prediction based on concrete slab length and a blow-up model based on are developed, the blow-up prevention technology will be applied to the appropriate blow-up time and location to avoid traffic accidents and reduce human and property damage.