• 건강소식
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• v.36 no.1
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• pp.40-41
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• 2012

골다공증은 뼈의 화학적 조성에는 변화가 없고 단위 용적 내의 물량 감소를 초래해 경미한 충격에도 쉽게 골절을 일으키는 질환으로 뼛속에 구멍이 많아져 골밀도가 저하된 상태를 말한다. 우리 몸의 뼈는 소아기와 청소년기를 거쳐서 점차 단단해지고 20~30대에 생애 중 최대골량을 형성하며, 나이가 들수록 골량이 서서히 줄어들다가 폐경기 이후 여성에서 매우 빠른 속도로 골량이 감소한다. 이러한 골다공증은 대부분 증상 없이 조용히 진행되다가 골절이 나타난 후에야 발견된다. 골다공증이 진행된 후에는 허리가 구부러지고 경미한 충격에도 골절을 일으키는데 주로 척추, 대퇴골 늑글 등의 골절이 흔히 발생한다.

• The Journal of Korea CHUNA Manual Medicine
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• v.1 no.1
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• pp.139-143
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• 2000

통증감소를 위주로 하는 기존의 슬 골관절염 치료는 슬관절의 퇴행을 가속화시킬 수 있기 때문에 한의학적 각종 침구요법 및 물리요법, 약물요법이나 의학적 주사요법 등을 '슬관절에 대한 부하 힘을 감소시킨 상태'에서 시행하는 진료형식을 제안한다. 그리고 이러한 슬관절질환 치료의 추나요법을 채택하여 임상적용이 가능하도록 이를 기계화 도구화하고, 진단과 치료를 동시에 시행할 수 있는 방식이 되도록 연구할 필요가 있다.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.10a
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• pp.356-357
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• 2001

우리 나라 연근해에서 어획되는 보구치의 어획량은 1975년에서 1984년까지 증가하여 이때 가장 높은 수준을 보이다가 그 이후 감소하기 시작하여 1995년에는 급격히 감소한 것으로 나타났으며, 자원량은 1995년 아주 낮은 수준에 있는 것으로 추정되었다 (Zhang et al., 1999a). 또한 Zhang et al. (1999b)에 의해 추정 된 어획사망계수 (F)로 볼 때, 보구치 자원은 심각한 남획상태에 있는 것으로 나타났다. (중략)

• Cement
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• s.206
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• pp.13-17
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• 2015

2015년 일본의 시멘트 내수는 민간수요가 회복세를 보일 것으로 전망되나 공공수요가 줄어들어 전년대비 0.8% 감소한 4,563만톤을 기록하며 정체상태를 유지할 것으로 보인다. 수출의 경우 내수부진으로 일본 시멘트업체들이 수출에 적극 나설 것으로 예상되어 전년대비 3.7% 증가한 966만톤을 기록할 것으로 전망된다. 2015년 시멘트 생산은 전년대비 1.0% 감소한 6,116만톤을 기록할 것으로 보이지만 킬른 가동률은 계속해서 90%를 웃도는 높은 수준을 유지할 것으로 예상된다. 여기서는 일본의 미즈호종합연구소가 내놓은 '2015년 일본산업동향(시멘트)' 보고서를 통해 일본 시멘트산업의 수급동향 및 일본 주요 시멘트기업 실적에 대해 살펴본다.

• Journal of Korea Entertainment Industry Association
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• v.15 no.4
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• pp.287-297
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• 2021

This study was to investigate the relationship of job stress, health status, and health promotion behavior, retention intention and to identify the influencing factors on retention intention of nurse in Emergency Room(ER). The subjects were 155 ER nurses working at 15 general hospital in Gwangju, Korea. The data were collected from October 15, 2020 to November 3, 2020. The result, there were negative correlation between job stress and health promotion behavior(r=-0.310, p=<.000), between job stress and retention intention(r=-0.220, p=.006), between health status, and health promotion behavior(r=-0.448, p=<.000), between health status and retention intention(r=-0.296, p=<.000), but there were positive correlation between job stress and health status(r=0.368, p=<.000), between health promotion behavior and retention intention(r=0.229, p=.004). Factors influencing retention intention were fatige and health status with R2 value 22.7%. Considering these results, it seems that important factors determining the retention intention of nurses in ER are Spiritual health status, heavy workload due to job stress, fatigue and social health status by nurse. Therefore, in order to increase the retention intention of nurse in ER, it is a need for strategies to improve the working environment and develop programs to reduce job stress and fatigue through work adjustment, and to maintain and promote health.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.1
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• pp.78-84
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• 2010

This study was to designed to investigate the effects of nutrition education and exercise program for overweight or obese female adults, and also emphasize the necessity of a proper nutrition education. The anthropometric characteristics, nutritional intake, eating habit, and hematological index, physical examination were measured before and after program. Considering the time schedule of the subjects, the exercise program was divided into 3 sessions (morning, afternoon, and evening) and the subjects performed swimming and weight training for 4 weeks. The subjects were overweight or obese women, with an average age and height of each 46.1 and 156.3 cm. The weight and BMI were decreased significantly after nutrition education and exercise program. The back region of front arm (p<0.001), infrascapular region (p<0.001), body fat (p<0.001) were significantly decreased, and grasping power (p<0.01), back muscle power (p<0.001) were significantly increased after nutritional and exercise program. Total triglyceride level and fasting blood glucose (p<0.001) were decreased significantly after program. The intakes of vitamin D and vitamin $B_1$ were significantly changed after nutrition and exercise program. As for eating behavior and nutritional knowledge evaluation after program, the average score increased significantly (p<0.001). The results of this study show that this nutrition and exercise program can be an effective approach to improve their hematological index and nutritional and health status.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.374-382
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• 2017

The aim of this study was to evaluate the effectiveness of belly button healing by measuring the EEG activity after developing and applying belly button healing to high school students. This study was conducted on 19 high school students (8 boys and 11 girls). The students who participated in this study underwent belly button healing for about 5 minutes twice per daily (morning and evening) for 2 weeks. In this experiment, an electroencephalogram (EEG) of the subject was measured in a state of arousal and steady state and the change in EEG was observed during the stroop task. Subsequently, belly button healing was performed for about 5 minutes with a one minute break and the same procedure was then repeated. As a result of the study, the reduction of the M-Beta wave, H-Beta wave and Gamma wave was lower compared to the arousal state due to the navel healing program. The reduction of the Alpha wave and SMR wave also was decreased compared to the steady state by the navel healing program. This suggests that belly button healing has improved the concentration, immersion, and psychological stability of the subjects in stress situations. This is consistent with the participants' interviews after the research. The conclusions of this study are as follows. First, because belly button healing is effective in relieving stress in high school students, such a program will be needed for students who are experiencing academic stress. Second, because belly button healing can help increase high school students' concentration, it is recommended to implement belly button healing before addressing certain complex or difficult tasks.

• Korean Journal of Food Science and Technology
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• v.35 no.1
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• pp.57-61
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• 2003

Variations in NMR relaxation time during freezing and thawing processes in pork loins were investigated. Continuous distribution analysis of data obtained from $T_2\;CPMG$ were carried out to observe the changes in water content in the muscles. Solid fat content slightly increased with decreasing temperature, then showed sharp increase at $-4^{\circ}C$, reaching 85% at $-25^{\circ}C$. Relaxation time decreased with decreasing temperature, suggesting that ice crystals gradually formed at freezing temperature. $T_2$ relaxation time during thawing was higher than that during freezing, suggesting that ice crystals melted by thawing and resulted in water loss from meat. Continuous distribution analysis of data obtained from Carr-Purcell-Meiboom-Gill experiments shows one to four components on the spectra during freezing and thawing processes. The area of major components between 30 to 45 ms decreased with decreasing temperature, and were not detected below $-4^{\circ}C$, below which only $T_s$ signal was detected. The area of $T_s$ decreased with decreasing temperature. Between -4 to $10^{\circ}C$, the areas of $T_m$ and $T_l$ during thawing were larger than those during freezing. These results suggest that the exchange between bound water and free water takes place during freezing and thawing.

• Journal of Korean Ophthalmic Optics Society
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• v.14 no.3
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• pp.17-27
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• 2009

Purpose: This review article was written to determine the effects of parameters characterizing a hard contact lens (RGP included), such as BCs, diameters, edge angles, on the time interval for tight fitted lens to return to the equilibrium when it was decentered from blinking. Methods: A mathematical formulation was established to relate or calculate the restoring forces and thickness of lacrimal layer beneath the cornea with the various lens parameters when the tight fitted lens was decentered from blinking. Based on this formulation the differential equations and their numerical solution program were set up to describe the time dependence of the lens on the position and to estimate the time for the lens's return to the equilibrium after blink. Results: It is found that the time interval for the tight fitted lens to return to the equilibrium decreases as either the BC decreases or the diameter increases because both the reduction in BC and increase in diameter result in the increase in the lacrimal layer thickness between the lens and cornea increase which yielded the lowering of the viscous friction in the lens motion. As the edge angle of tight fitted lens increases the time for recentering decreases due to the increase in restoring force without change in lacrimal thickness beneath the lens. In the case of flat fitted hard lens (RGP included), the lacrimal layer thickness under the lens increases as either BC or diameter increases which results in reduction in viscous friction so that the time for the lens's return to the equilibrium were to decrease. The edge angle of flat fitted lens does not affect the lens motion. Conclusions: The effect of BCs on the lens motion (time to approach the equilibrium) was concluded to be significant with both tight and flat fitted lens where its results are contrary with each other. The edge angle of lens only affects the motion in tight fitted lenses.

• The Korean Journal of Medicine
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• v.93 no.6
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• pp.548-555
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• 2018

Background/Aims: Assessment of fluid status in hemodialysis patents is very important. Overhydration in hemodialysis is associated with generalized edema, cardiovascular complications, and hypertension. The aim of this study was to determine the factors correlated with mortality of hemodialysis patients, assessing body muscle mass and fluid status using bioelectrical impedance analysis (BIA). Methods: This study enrolled 93 patients who underwent hemodialysis between January 2010 and May 2015 at CHA Bundang Medical Center. Medical records of enrollees up to June 2017 were reviewed retrospectively. These included laboratory results (serum albumin, C-reactive protein [CRP], lipid profile, etc.) and BIA data (extracellular water, intracellular water, total body water, soft lean mass, fat free mass, skeletal muscle mass, etc.). Results: Eleven of 93 patients had expired by May 2017. Among the surviving subjects, mean age was younger, CRP levels were lower, albumin levels were higher, and extracellular water/total body water (ECW/TBW) ratios were lower than in the expired patient group. Kaplan-Meier survival analysis revealed that overhydration (ECW/TBW > 0.4) was associated with higher mortality. Conclusions: In hemodialysis patients, overhydration is an important factor in mortality, and BIA could be a reliable modality in its assessment. We suggest that, for hemodialysis patients, overhydration is more of a risk factor for mortality than is muscle wasting.