The purpose of this study was to determine the effects of music therapy and ball exercise on women experiencing menstrual discomforts, thereby identifying the validity of these methods as interventions against menstrual discomforts, with a particular goal of presenting basic data for clinical use. Twenty university students in their 20s were assigned to two therapy groups in a sequence via simple random sampling; ten subjects attended a ball exercise combined with music therapy group and the other ten subjects attended a music therapy group. Ball exercises were conducted 3 times per week for a total of 12 times, starting from 3 weeks before the expected first day of the menstrual period and ending on the last day of the menstrual period. Similarly, the subjects participated in music therapy by listening to music for 35 minutes per session and 3 sessions per week, starting from 3 weeks before the expected first day of the menstrual period and ending on the last day of the menstrual period. Five out of six categories of menstrual discomforts were significantly decreased in both music therapy and ball exercise, the exception being changes in the autonomic nervous system, while those in the music therapy group showed a significant difference only in the category of behavioral changes. The results of the present study demonstrate that the ball exercise combined with music therapy more effective in improving menstrual discomforts than the music therapy group.

The aim of this study was to investigate the effect of Maitland mobilization and Kaltenborn-Evjenth mobilization on the SLR angle. Subjects randomly divided into Kaltenborn-Evjenth group(n=8) and Maitland group(n=7). The mean height, age, body weight was 176.00±5.10 cm, 22.75±1.83 years, 72.63±10.65 kg respectively in Kaltenborn-Evjenth group. The mean height, age, body weight was 175.00±5.60 cm, 22.29 ±3.68 years, 78.00±12.36 kg respectively in Maitland group. Hip joint accessary movements with Grade Ⅲ or IV were applied depend on the patient’s condition to the restricted direction for 1 minute each set, and performed 5 set in a Maitland group. Hip joint anteroposterior gliding with Grade Ⅲ were applied 60 for 1 minutes each set, and performed 5 set in a Kaltenborn-Evjenth group. The angle of first pain was referred to as P1 and subjects were pointed out that they could not bend the knee anymore, then examiner measure SLR angle. The SLR was significantly increased in the Maitland group compared to the Kaltenborn- Evjenth group after intervention(p<.05). In a within group difference, SLR significantly increased in the both groups(p<.05). These results indicated that Maitland mobilization could be recommended the excellent technique to increase the hip flexion in patient with hip hypo-mobility.

The mammary gland is a complex organ, made up of various cell types that work together for mil synthesis. A previous study had established a clonal cell line from primary bovine mammary alveolar cells (MAC-T) for the study of bovine milk production and synthesis. In this study, we transplanted MAC-T bovine alveolar cell line to BALB/C nude mice for regeneration of bovine mammary gland alveolar ducts. The MAC-T cells were suspended with matrigel and injected into the dorsal tissue of 8 weeks old male BALB/C nude mice. After 6 weeks, the injected cells were showed typical morphology of the tubuloalveolar female glands by histological analysis. It was made the branching ducts that were surrounded by smooth muscle with small alveoli budding off the ducts. In addition, the epithelial markers CK14 and CK18 were expressed within the duct-like structure. Prolactin was detected in the duct interior in these CK14 and CK18 positive cells but not in the non-transplanted MAC-T cells. These results showed that duct-like tissue had been successfully formed after 6 weeks of transplantation of the CK14 and CK18 positive MAC-T cells into mice dorsal tissue. This mouse model will be a useful tool for further research on the bovine mammary gland.

Asiatic apple leafminer, Phyllonorycter ringoniella Matsumura (Lepidoptera: Gracillariidae) is an important insect pest in apple orchard, however little is known about its demography and relationship with environmental factors. The effect of five constant temperatures (13.3, 15.3, 20.7, 26.1, and 30.0℃) on the demography of P. ringoniella was examined based on jackknife randomization method in the laboratory. The lowest (34.0%) and highest (63.3%) survivorship of immature stages occurred at 30.0 and 20.7℃, respectively. Sex ratio was estimated to be 0.5 and was unaffected by the temperature. Mean developmental times of immature stage were inversely related to temperature and varied from 25.9 days at 26.1℃ to 76.4 days at 13.3℃. Female adult longevity was longest at 15.3℃ (18.6 ± 0.96 days) and shortest at 30℃ (5.4 ± 0.27 days). The highest (86.24) and lowest (13.59) gross fecundity rate occurred at 15.3 and 30.0℃, respectively, while daily egg production displayed its highest (6.48) and lowest (2.12) values at 26.1 and 30.0℃, respectively. The highest net reproductive rate (R0), intrinsic rate of increase (r), and finite rate of increase (λ) obtained at 20.7℃ were 12.43, 0.064, and 1.067, respectively. Mean generation time (T) decreased with increasing temperatures from 85.24 days at 13.3℃ to 30.48 days at 30.0℃. Doubling time (DT) varied significantly with temperature and the shortest value (10.75 days) was obtained at 20.7℃. The life expectancies of female adult were estimated to be 16.2, 18.6, 10.8, 7.2, and 5.4 days at 13.3, 15.3, 20.7, 26.1, and 30.0℃, respectively. This study was the first time to report demographic biology of P. ringoniella, thus it provide potential direction for future research on P. ringoniella and its natural enemies in apple orchards.

Potato tuber moth (PTM) is a primary pest of potato which had invaded into Korea in 1968 and its distribution was restricted in the southern part of the peninsula. Possibly due to the climate change, its distribution expanded toward the North including Gyounggi and Gangwon province. Since this pest also can inflict damage on other solanaceous crop like tobacco and tomato, we tested the possible host expansion and damage potential on the varieties of tomato. A day old larvae were inoculated to three commercial varieties of a tomatoes and a potato. The results showed that PTM could survive and reproduce on tomato leaves or fruits with differential performance on the varieties. Development time for a day old larvae took longest in leaves of 3 months old plant than of one months old plant of tomatoes. PTM showed lowest reproduction on the leaves of variety with significantly higher type-VI trichome density/mm2. When fed with fruits of tomatoes PTM performance was low in terms of biological parameters in small sized cherry tomatoes than big normal size tomatoes. Significantly high survival rate was observed in the large sized fruit of tomato verities than small sized. This led to further discuss the importance of fruit size and the glycoalkoloid which is present in high level in cherry type tomatoes. Further work on resistance with more tomato accessions are necessary to know wider resistance variability in Korea.

Strawberry jelly as a universal design food was developed using strawberry juice (SJ), sugar, xanthan gum (XG), and locust bean gum (LBG). Experimental variables included SJ concentration (30-40% (w/w)), sugar concentration (7.5-10.0% (w/w)), and the ratio of XG/LBG (0.3-4.0% (w/w)), and response variables were textural (hardness, gumminess, chewiness) and color properties. The formulation of strawberry jelly was optimized against hardness and the interactions among variables were predicted using the response surface methodology. Controlled storage test at 5 or 15°C was conducted to determine the values of the jelly at different temperatures. The optimal SJ and sugar concentrations and the ratio of XG/LBG against hardness were 40, 10, and 1.5%, respectively. The color did not change significantly during storage at 5 and 15°C (p>0.05). However, the textural characteristics during storage increased significantly at 5°C (p<0.05) and the hardness was appropriate to be used as a criterion for determining the shelf life of the jelly. The shelf life at 5°C generated from a zero-order kinetics (R²=0.96) was 40 d according to a criterial value, 1.8 N, of hardness. The Q10 value was calculated as 0.6, which allowed prediction of the shelf life values at different temperatures. The results from this study suggested a formulation of strawberry jelly as a universal design food and allowed determination of the shelf life of the food product.

We developed a type of sausage made of chicken breast and liquid egg whites for consumers interested in weight management. To determine the quality of the product, its chemical characteristics, fatty acid composition, free amino acid contents, and nucleotides contents were evaluated during 4 weeks of storage. Sensory evaluation was conducted by both general consumers and body-builders. The sausage was proposed as a fat-free product as fat content was 0.12% based on the Korean Indication Standard of Animal Origin Food. Protein content was 13.42% and calorie value was 61.50 kcal/100 g of the sausage. In sensory evaluation, the mixture of chicken breast and egg whites stuffed into the same casing had an adverse effect on taste, color, texture and overall acceptance while the product that contained egg white stuffed separately into the outer casing enclosing the chicken breast (double layer) improved these attributes. The developed double-layer sausage can last for at least 4 weeks of storage without quality deterioration of flavor-related compounds, such as fatty acids and nucleotides.