• 대한치과교정학회지
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• 제28권4호
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• pp.581-589
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• 1998

부정교합 환자에서 사춘기 성장 가속화시기의 치료는 악안면 골격 부조화의 교정과 안모의 개선에 상당한 영향을 미치므로 사춘기의 성장을 예측하고 성장 잠재력을 평가하는 것은 매우 중요하다. 따라서 교정학에 있어서 개개인의 성장 가속화시기와 연관해서 신체의 성장 발육상태를 평가하는 것은 매우 중요하며 교정치료시 반드시 고려되어야 한다. 이 에 본 연구에서는 부정교합 분류에 따라 초경시기에 차이가 있는지와 초경시 골성숙도를 조사하기 위해, 1급 부정교합자 64명, II급 부정교합자 51명, III급 부정교합자 38명의 초경 전후 3개월 이내의 수완부골 방사선 사진을 이용하여 골성숙도를 평가한 결과 다음과 같은 결론을 얻었다. 1. 초경시 평균 연령은 $12.50{\pm}1.01$세 였다. 2. 각 군별 초경연령은 I급 부정교합군이 $12.36{\pm}1.04$세, II급 부정교합군이 $12.81{\pm}1.03$세, III급 부정교합군이 $12.32{\pm}0.82$세로서, II급 부정교합군이 I급 부정교합군 과 III급 부정교합군에 비해 늦은 초경연령을 보였다. 3. 초경시 수완부 골성숙도는 부정교합에 따른 차이가 없었다. 4. 초경시 수완부 골성숙도는 SMI 7이 $45.10\%$, SMI 8이 $27.45\%$, SMI 9가 $10.46\%$, SMI 6이 $7.84\%$, SMI 10이 $7.84\%$, SMI 5가 $1.31\%$ 였다. 5. 초경연령과 수완부 골성숙도는 통계적으로 유의한 상관관계를 보였다(p<0.05, r=0.25430).

• 한국동물위생학회지
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• 제32권3호
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• pp.257-264
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• 2009

Subtyping of Brucella abortus isolates is epidemiologically important for monitoring of bovine brucellosis outbreaks. Pulsed-field gel electrophoresis (PFGE) is considered as a gold standard of molecular typing methods to study the DNA polymorphisms of bacteria. In this study, we analyzed using PFGE the DNA fragment profiles of B. abortus isolated in Gyeongbuk province from 1998 to 2006. The genomic DNA was digested with the restriction endonuclease Xba I, Xho I and Smi I followed gel electrophoresis. No distinguishable patterns of the genomic DNA digested with Xba I and Xho I were observed among the field isolates of B. abortus tested in this study. But Smi I restriction enzyme resulted in two PFGE patterns consisting of 13-15 bands that ranged in size from 33 to 668bp by standard marker. The cluster analysis by DNA fingerprinting software showed 93.75% similarity between two PFGE patterns. No different PFGE patterns were recognized among the isolates originated from various years, regions and cow breeds.

• Korean Journal of Radiology
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• 제25권3호
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• pp.277-288
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• 2024

Objective: We previously found that the incidence of sarcopenia increased with declining glucose metabolism of muscle in patients with treatment-naïve diffuse large B-cell lymphoma (DLBCL). This study aimed to investigate the relationship between sarcopenia and muscle glucometabolism using ¹⁸F-FDG PET/CT at baseline and end-of-treatment, analyze the changes in these parameters through treatment, and assess their prognostic values. Materials and Methods: The records of 103 patients with DLBCL (median 54 years [range, 21-76]; male:female, 50:53) were retrospectively reviewed. Skeletal muscle area at the third lumbar vertebral (L3) level was measured, and skeletal muscle index (SMI) was calculated to determine sarcopenia, defined as SMI < 44.77 cm²/m² and < 32.50 cm²/m² for male and female, respectively. Glucometabolic parameters of the psoas major muscle, including maximum standardized uptake value (SUVmax) and mean standardized uptake value (SUVmean), were measured at L3 as well. Their changes across treatment were also calculated as ΔSMI, ΔSUVmax, and ΔSUVmean; Δbody mass index was also calculated. Associations between SMI and the metabolic parameters were analyzed, and their associations with progression-free survival (PFS) and overall survival (OS) were identified. Results: The incidence of sarcopenia was 29.1% and 36.9% before and after treatment, respectively. SMI (P = 0.004) was lower, and sarcopenia was more frequent (P = 0.011) at end-of-treatment than at baseline. The SUVmax and SUVmean of muscle were lower (P < 0.001) in sarcopenia than in non-sarcopenia at both baseline and end-of-treatment. ΔSMI was positively correlated with ΔSUVmax of muscle (P = 0.022). Multivariable Cox regression analysis showed that sarcopenia at end-of-treatment was independently negatively associated with PFS (adjusted hazard ratio [95% confidence interval], 2.469 [1.022-5.965]), while sarcopenia at baseline was independently negatively associated with OS (5.051 [1.453-17.562]). Conclusion: Sarcopenic patients had lower muscle glucometabolism, and the muscular and metabolic changes across treatment were positively correlated. Sarcopenia at baseline and end-of-treatment was negatively associated with the prognosis of DLBCL.

• 한국초등과학교육학회지:초등과학교육
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• 제32권2호
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• pp.185-197
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• 2013

The purpose of this study was to analyze the difference between eye movements according to science achievement of elementary school students in observation situation. Science achievement was based on the results of national achievement test conducted in 2012, a random sampling of classes. As an assessment tool to check observation test, two observation measure problems from TSPS (Test of Science Process Skill; developed in 1994) suitable for eye tracking system are adopted. The subjects of this study were twenty students of sixth grade who agreed to participate in the research. SMI (SensoMotoric Instruments)' iView $X^{TM}$ RED was used to collect eye movement data and Experiment 3.1 and BeGaze 3.1 program were used to plan and analyze experiment. As a result, eye movements in observation test varied greatly in fixation duration, frequency, saccade, saccade velocity and eye blink according to students' science achievement. Based on the result of eye movements analysis, heuristic search eye movement was discussed as an alternative to improve underachievers' science achievement.

• Journal of Korean Biological Nursing Science
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• 제11권1호
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• pp.23-31
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• 2009

Purpose: The purpose of the present study was to investigate the prevalence and related factors of sleep-wake disturbance (SWD) in Korean post-stroke patients. This study was the first to address post-stroke SWD in Korea using a structured questionnaire. Method: We investigated the prevalence of SWD and related factors including lesion location, stroke severity, presence of depression and fatigue. We assessed sleep-wake pattern including quality of sleep, sleep latency, wake episodes, wake time after sleep onset, daytime sleep episode and sleep time at daytime. Ninety stroke patients admitted to a university affiliated hospital in Seoul between the period September 2008 and January 2009 were included in the study. Result: Thirty five patients (38.9%) complained insomnia and 32 (35.6%) complained excessive daytime sleepiness (EDS). Quality of sleep (p=.000), sleep latency (p=.000) and total sleep time (p=.001) were significantly poorer in 16 patients with both insomnia and EDS than in the others. The related factors to insomnia were level of education (p=.030), depression (p=.007) and fatigue (p=.034), though related factors to EDS were stroke onset time (p=.049), stroke severity (p=.005), motor dysfunction (p=.035), dysphasia (p=.018), fatigue (p=.001) and lesion location (p=.019). Conclusion: Sleep-wake disturbance is a common problem in Korean stroke patients. Strategies to improve quality of sleep are urgently needed in the post-stroke patients.

• 천문학논총
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• 제32권1호
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• pp.317-319
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• 2017

We propose a cosmological survey to probe star formation and nuclear activity in galaxies at redshifts of z=2-4 by polycyclic aromatic hydrocarbon (PAH) features using the SPICA mid-infrared instrument (SMI) with a spectral resolution of R=20. We will cover a wavelength range of $20-36{\mu}$ that corresponds to z=2-4 for the PAH features (11.3, 7.7, and $6.2{\mu}$). The sensitivity will be $1{\times}10^{-19}W/m^2(5{\sigma})$ in case of a reference survey that covers 4 arcmin2 field in a one-hour observation. It corresponds to $L_{IR}=2{\times}10^{11}L_{\odot}$ at z=3 and will give us more than 10000 galaxies in a 450 hour survey.

• 성인간호학회지
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• 제28권4호
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• pp.367-377
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• 2016

Purpose: The purpose of this study was to explore the quality of life (QoL) in patients with Alzheimer's disease (AD) and their and caregivers and its influencing factors. Methods: A descriptive research design was used. 211 pairs of AD patients and their caregivers were recruited from a neurology outpatient clinic of S medical center in Seoul, Korea. Caregivers completed several structured questionnaires regarding AD patients' QoL as well as their QoL, patients' behavioral and psychological symptoms, patients' activities of daily living (ADL), social support, and quality of relationship between AD patients and caregivers. Cognitive status of AD patients was assessed by the researchers using Korean Mini-Mental State Examination. Results: The scores of QoL were 26.91 for AD patients and 85.62 for their caregivers. In the multiple regression, factors associated with AD patients' QoL were the quality of relationship (${\beta}$=.44), ADL (${\beta}$=-.33), patient's age (${\beta}$=.20), caregivers' QoL (${\beta}$=.20), and patient's gender (${\beta}$=.11). Factors associated with caregivers' QoL were the quality of relationship (${\beta}$=.34), relationship (${\beta}$=.32), patient's QoL (${\beta}$=.26), caregivers' gender (${\beta}$=.18), social support (${\beta}$=.12), and the level of caregivers' education (${\beta}$=.12). Conclusion: To improve the QoL in AD patients and their caregivers, strategies to promote their quality of relationship are needed.

• 대한간호학회지
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• 제50권4호
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• pp.631-640
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• 2020

Purpose: This study aimed to examine premenstrual symptoms (PMS) of shift nurses and identify the association between PMS, sleep, and occupational stress. Methods: This study was conducted with a secondary data analysis that used data from the Shift Work Nurse's Health and Turnover study. The participants were 258 nurses who were working in shifts including night shifts. PMS, sleep patterns (sleep time and sleep time variability), sleep quality, and the occupational stress of each participant were measured using the Moos Menstrual Distress Questionnaire, a sleep diary, an actigraph, the Insomnia Severity Index, and the Korean Occupational Stress Scale, respectively. Data were analyzed using SPSS 23 and STATA 15.1 to obtain descriptive statistics, Pearson's correlation coefficients, multiple linear regression with generalized estimating equations (GEE) and Baron and Kenny's mediating analysis. Results: The average PMS score, average sleep time, average sleep time variability, average sleep quality score, and average occupational stress score of the participants was 53.95 ± 40.45, 7.52 ± 0.89 hours, 32.84 ± 8.43%, 12.34 ± 5.95, and 49.89 ± 8.98, respectively. A multiple linear regression analysis with GEE indicated that sleep time variability (B = 0.86, p = .001), and sleep quality (B = 2.36, p < .001) had negative effects on nurses' PMS. We also found that sleep quality had a complete mediating effect in the relationship between occupational stress and PMS. Conclusion: These findings indicate that both sleep time variability and sleep quality are important factors associated with PMS among shift work nurses. To improve shift nurses' PMS status, strategies are urgently needed to decrease sleep time variability and increase sleep quality.

• 여성건강간호학회지
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• 제29권1호
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• pp.32-43
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• 2023

Purpose: This study investigated the dietary behavior of experienced shiftwork nurses and aimed to identify factors related to dietary behavior. Methods: This study was a secondary analysis based on the Shift Work Nurses' Health and Turnover study (2018-2021) among Korean nurses. In total, 247 experienced (>12 months) shiftwork nurses were included in this study. The participants' dietary behavior, depression, level of occupational stress, fatigue, physical activity, and general characteristics were measured. Descriptive statistics, Pearson correlation coefficients, independent t-test, one-way analysis of variance, the Kruskal-Wallis test, and multiple regression analysis were conducted. Results: The dietary behavior score of the participants using the Mini-Dietary Assessment Index was 29.35±5.67. Thirty percent of the participants were depressed, the participants experienced moderate occupational stress, and 74.1% of the participants engaged in an inadequate amount of physical activity. The factors influencing shiftwork nurses' dietary behavior were having child(ren) (β=.16, p=.027), depression (β=-.13, p=.032), level of occupational stress related to occupational climate (β=-.13, p=.035), and an inadequate amount of physical activity (β=-.17, p=.006). These factors explained 10.4% of the variance in experienced shiftwork nurses' dietary behavior scores. Conclusion: Experienced nurses with child(ren) tended to have healthier diets. However, a higher level of occupational stress related to occupational climate, depression, and engaging in an inadequate amount of physical activity were associated with a higher risk of having an unhealthy diet. Therefore, strategies are needed to encourage physical activity and alleviate adverse occupational climate and depression among experienced nurses.

• 대한치과교정학회지
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• 제30권2호
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• pp.143-157
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• 2000

본 연구는 성장중인 부정교합 환자의 진단이나 치료계획의 수립, 치료방법 및 시기, 예후등을 결정하는데 중요한 판단의 지침이 되는 치아성숙도와 경추 및 수완부 골 성숙도의 연령별 성숙정도와 이들 상호간의 연관성을 규명하여 개인의 보다 정확하고 효율적인 성장정도를 평가하기 위해 조선대학교 치과대학 부속치과병원 교정과에 내원한 환자중, 동일한 날짜에 촬영된 측모두부방사선규격사진과 수완부방사선사진 및 파노라마사진이 모두 있으며, 성장발육에 영향을 미칠 수 있는 구개파열 및 구순열등의 선천적 기형이 없는 1055명 (남자 458명, 여자 597명)을 연구대상으로 하여 상, 하악의 견치, 제1소구치, 제2소구치, 제2대구치의 치아성숙도와 경추 (CVMI)및 수완부 (SMI)의 골성숙도를 측정하여 다음과 같은 결과를 얻었다. 1. 남녀모두에서 치아성숙도와 경추 및 수완부 골성숙도 사이에 통계적으로 유의한 상관관계가 있었다 (P<0.001). 2. 남녀모두에서 수완부 골성숙도와 경추의 골성숙도 사이에 0.91-0.93의 높은 상관관계를 보였다. 3. 남녀모두에서 수완부 골성숙도와 상,하악의 견치, 제1소구치, 제2소구치 성숙도 사이에 0.8이상의 높은 상관관계를 보였다. 4. 경추의 골성숙도는 상악견치의 성숙도와 0.8의 높은 상관관켸를 보였다. 5. 남녀모두에서 연령별 경추 및 수완부의 골성숙단계와 치아성숙단계를 구하였다. 이상을 종합해볼 때, 경추 및 수완부 골성숙도와 치아성숙도는 개인의 사춘기 성장정도를 평가하여 부정교합 환자의 진단 및 치료계획을 수립하는데 유용한 정보를 제공할 수 있을 것으로 생각된다.면 서울시 환자가 전체 내원 환자의 $70\%$이상 차지하는 것으로 조사되었으며 서울시 내원환자중 연세대학교 치과병원을 중심으로 반경 3-6km의 거주자가 $32.3\%$로 가장 높게 나타났고 반경 9Km이내에서 전체의 $69\%$를 차지하였다. 4. 수평피개보다는 수직피개가 치근흡수에 미치는 영향이 컸으며 개방교합의 경향이 커질수록 치근흡수의 빈도가 높았다. 5. 개개 치아에서 나타나는 부정교합의 특징에 대해서는 반대교합과 개방교합을 함께 나타내는 치아에서 치근흡수의 빈도가 가장 높았다.를 보이지 않았는데 이는 다른 연구 결과와 유사한 결과이다.고 사료된다. 6. 치료전에는 차이가 없던 남,여군 사이에 치료후에 차이가 나타나는 것은 치료 효과에 관계없이 남여에 따른 성장양상의 차이가 그대로 표현된 것으로 사료된다. 연구는 거대 편도를 가진 기능성 III급 부정 교합자의 구개 편도 절제술 전후의 인두강, 설골, 두부 위치의 변화 양상에 대해 알아보기 위해 단국 대학교 부속 치과 병원 교정과에 내원한 남녀 환자 42명을 대상으로 연구하여 다음과 같은 결론을 얻었다. $55.19\%$로 첨가량이 증가하면서 두 항목 모두 크게 감소하는 결과를 보였다. 색도를 분석한 결과 L값, a값, b값 모두 표고버섯 분말 함량이 증가하면서 감소하였고, 모든 처리구에서 기존 무첨가구와 극히 현저한 차이를 보이는 것으로 나타났다. 시료별 관능검사 결과에서 색 (color), 먹을때의 느낌 (chewiness)과 단맛(sweetness)의 경우 무첨가구와