The purpose of present study was to analyze mineral contents in various tissues and investigate theirs relation with bone mineral density (BMD) in rats. Fifteen Sprague-Dawley rats were fed standard diet for 4 weeks. Body weight gain, feed intake, and feed efficiency ratio were 41.00 g/week, 171.15 g/week, and 0.24 respectively. Among 12 minerals in serum, Ca is the highest with 6.86 mg/dl. Serum Mg, Se, and Cu were 2.52 mg/dl, 0.23 mg/dl and 0.22 mg/dl respectively. Mg contents in liver, spleen, and kidney were 246.36 μg/g, 105.01 μg/g, and 273.38 μg/g respectively. Tibia contents of Ca, Mg, Zn, Fe and V were 194.91 mg/g, 23.10 mg/g, 0.60 mg/g, 0.35 mg/g and 0.14 mg/g respectively. BMDs of right tibia and spine were 122.04 mg/cm2 and 153.61 mg/cm2. There were significantly positive correlations between tibia BMD and Se (p<0.05), tibia BMD and V (p<0.01), spinal BMD and V(p<0.05), respectively. It's expected that these results are used as a reference data in following study to elucidate physiological function of minerals.

This study was intended to develop a multi-purpose, multi-functional design for safety vest to enhance the safety and user’s availability. With a limited scope to LED-applied safety vest, this study contemplates on the problems of safety vest on the market and directions for design development with a view to develop its prototype. This is a significant study because it has been conducted concerning a prototype, a cut above the study method of constructing a basic theory. For study method, theoretic considerations on LED and safety vest are followed by case study for LED-applied safety vest currently on the market to draw out problems. Then, solutions for problems with LED safety vest will be found, while planning for a design direction in consideration of safety, functionality and beauty. Scope of study was limited to cases of LED safety vests currently on sale online and offline, excluding cases of common-form luminosity such as HB luminous vest without LED. Accordingly, results of study will help develop the prototype for LED safety vest with an increase of the wearer’s safety, and be used as a basic data for developing high-value-added fashion prodcts to meet his aesthetic sense and functionality. This study has limitations. Restricted scope for LED-applied safety vest should be extended to an outdoor wear in follow-up research for the foundation of higher value added.

We investigated phase separation by adding different concentrations of MTBE, to the mixtures of naphtha, ethanol and water. The phase separation temperatures of the Naphtha-Ethanol-Water solutions have dropped when the concentration of MTBE increases more. When adding IPA and IBA to the solutions of Gasoline-Ethanol and Gasoline base-Ethanol individually, IBA shows lower temperatures of phase separation than IPA, and it shows synergistic effect when mixtures of IPA and IBA is applied.

The purpose of this study was to obtain baseline data of nutritional management for women's bone health according to age. This study was conducted through questionnaire, bone mineral density(BMD) measurement by DEXA and dietary survey by 24hr recalls to 134 adult women. Subjects were divided into three groups: young women group who aged 20-29(n=48), middle aged women group who aged over 30 and were pre-menopause(n=36), postmenopausal women group(n=48). The body fat percent of postmenopausal women group was the highest among the three groups. BMD of lumbar spine(L1-L2) were 0.93 g/cm2 for young women, 0.97 g/cm2 for middle aged women, and 0.88 g/cm2 for postmenopausal women, respectively(p〈0.05). BMD of femoral neck(p〈0.05), trochanter(p〈0.05), and ward's (p〈0.001) were significantly decreased as age increasement. Drinking alcohol and skipping meals were significantly higher in young women groups than in the other groups, however frequency of doing regular exercise was significantly lower in young women groups. Young women group consumed the significantly higher amount of cereals(p〈0.05), sugar and sweeteners(p〈0.001), meats(p〈0.01), eggs(p〈0.01), milks(p〈0.05) and oils(p〈0.001) than middle aged and postmenopausal women. Also, energy(p〈0.001), animal protein, (p〈0.01), plant oil(p〈0.001), animal fat(p〈0.001), retinol(p〈0.001), vitamin E(p〈0.01), and cholesterol(p〈0.001) intakes of young women were highest among the three groups. However, young women group consumed the significantly lower amount of dietary fiber(p〈0.05), vitamin C(p〈0.01), folate(p〈0.05) and fruits(p〈0.01) than the other groups. To summarized the our results, young women who were in still undergoing bone formation activity to develope peak bone mass, had more dietary habit and lifestyle problems than middle aged and postmenopausal women. The results of this study revealed that nutritional management and education for bone health should be emphasized in young women not only aged women.

The objective of current study is to determine antioxidant activities of Maillard reaction products (MRPs) obtained from Maillard reaction model systems with different combinations of 15 individual amino acids and 3 different sugars(glucose, fructose and lactose). Antioxidant activities of MRPs were determined using techniques of measuring DPPH and ABTS-radical scavenging activities. The results indicated that radical scavenging activities of MRPs were significantly increased compared to individually thermal treated amino acids and sugars. Among the model systems, the systems containing glycine or lysine + sugars (glucose, fructose and fructose) displayed the stronger DPPH and ABTS radical scavenging activities than other model systems. In addition, when the thermal treatment time was increased, radical scavenging activities of MRPs were increased in a reaction time-dependent manner. Further investigation using bioassay-directed fractionation was performed using two model systems (glycine+glucose, lysine+glucose) which displayed the strongest radical scavenging activities. The reaction solution were subjected to partition with a different polarity of solvent (hexane, ethyl acetate, n-butanol, and water) for evaluation of their radical scavenging activity. Among them, ethyl acetate fraction exhibited the strongest DPPH-radical scavenging activity in both model systems.

The purpose of this experiment was to investigate the applicability of audio-visual modeling for improving the efficiency of rehabilitative programs by analyzing the effects of observing these various models on the capacity of stroke patients to perform upper limb activities. Twenty-one stroke patients participated in the experiment and were randomly assigned to either task modeling, sport modeling, or control group. During 2 weeks of intervention, subjects in all groups participated in the physical practice of experimental tasks. These tasks comprised of a Nine Hole Peg Test, the Jebsen-Taylor Hand Function tests, and locomotion. These tasks were performed 5 days a week, 30 min per day. In addition to the physical practice, the task modeling group observed a model performing experimental tasks and locomotive activities for 20 min, while the sport modeling group observed a model performing various sport activities for 20 min. Subjects' ability to perform the experimental tasks was measured 3 times, before, immediately after, and 1 week after the intervention. Analyses of the capacity to perform upper extremity activities displayed significant improvement from the pre-test to immediate and delayed post-tests in all groups. However, the amount of improvement was the highest in the task modeling group. The task modeling group was superior to the control group in the post-test of all experimental tasks, whereas the sport modeling group did not display significant differences from the control group. These results suggest that audio-visual modeling can be used as an effective cognitive intervention for facilitating the rehabilitation of stroke patients, and its rehabilitative effect can be maximized when the program is comprised of performance scenes directly related to the target task.