The purpose of this study was to investigate the effect of the screen size of smart devices on the bending angle of the cervical spine. The subjects of this study were 30 healthy adults(15 men and 15 women) who used smartphones and tablet PC(personal computer). The changes in the bending angle of the upper and lower cervical spine were measured in the subjects after they had used a smartphone and a tablet PC for 300 seconds each. To make sure that all subjects began in the same starting position, an angle-measuring instrument was used to set the angles of the ankle, knee, hip, and arm joints to 90 degree. The subjects were asked to keep the trunk straight. They were asked to hold a smartphone in their hand and to bend their neck so that they could look down at the screen. Once they began using the smartphone in this manner, they were free to change their posture. We used a paired t-test to compare the bending angle of the cervical spine on subjects who used smartphones and tablet PC in the longterm and short-term there production error of cervical and the significance level was cervical. The results showed that, when using a smartphone and a tablet PC for 300 seconds, there was no significant difference in the bending angle of the upper cervical spine(p>.05), although there was a significant difference in the bending angle of the lower cervical spine(p<.05).

The purpose of this study was to examine the effects of sensory stimulation type on the learning of the elderly. The study implemented elderly verbal learning test by evenly dividing a total of 40 elderly people into auditory stimulation followed by visual stimulation group(AVG), visual stimulation followed by auditory stimulation group(VAG), simultaneous visual and auditory stimulation group(SG), and auditory stimulation group(AG). The result are as follows. SSG showed highest results in most of the test, followed by AVG, VAG, and AG. In particular, SG showed a statistically significant difference in immediate recall total score and short delay free recall score(p<.05). In the post-hoc test results of immediate recall total score, SG showed highest score with a statistical significance. AVG showed the second highest score, followed by VAG and AG and all showed a statistic significance(p<.05).In the post-hoc test results of short delay free recall score, SG and AVG showed a statistically significantly higher score than AG(p<.05). The results suggest that simultaneous stimulation of visual and auditory sense is more effective for improving the learning of the elderly people than visual stimulation followed by auditory stimulation or auditory stimulation followed by visual stimulation.

The occurrence pattern of lepidopteran adults in a paddy-upland rotation field and an organic upland field for 8 maize and 7 sorghum varieties was surveyed from May 8 to September 27, 2016. In addition, their damage ratio and the invasive pores by Ostrinia furnacalis larvae as well as harvest yields were monitored. The density of the lepidopteran adults in two fields showed similar pattern, although a little different pattern in Heliothis assulta. The damage ratio of maize and sorghum varieties by O. furnacalis at harvest periods was depended on both varieties and cultivated environments. A middle negative linear correlation was observed in damage ratios vs yields, the number of invasive pores vs yields, and the number of larvae in corn ears vs yields, but there was not a specific correlation between the damage ratio vs the number of invasive pores. These results may be useful for the establishment of a management strategy to control oriental corn borer in paddy-upland rotation or organic upland fields for maize and sorghum.

In Hanoks which are Korean traditional houses, gudeuls (ondols) are more important than other elements. Recently, demand for Hanoks has been rapidly increasing thanks to the effects of Korean waves and rediscovery of traditions. This paper traced the process of development of gudeul construction technology to examine the definitions of terns and changes in the types of gudeuls and discussed the prospect of future gudeul construction technology.

Microalgae are of significant importance for future biotechnological applications. Many microalgae banks or laboratories attempt to maintain various microalgae for further research purposes. Cryopreservation has been preferred to reduce a labor-intensive and costly routine sub-culturing. Cryopreservation can also diminish the genetic drift risk. However, cryopreservation as a long term storage of microalgae method are still in developing progress because it cannot be generalized for all microalgae. Microalgae types, cryoprotectant agents (CPAs) types, freezing and thawing methods are the most important factors that should be considered for cryopreservation. In this short review the basic principles and the current advanced of microalgae cryopreservation methods are discussed with a suggested starting parameters for microalgae cryopreservation.

In the present study, the general characteristics, job stress, working conditions, and aspects of pain of some industrial workers working in Changwon-si, Gyeongsangnam-do, were surveyed. In analyzing the relationship between job stress and the existence of pain, the variables “working speed” and“ opportunities to develop abilities” were shown to have statistically significant relationships with the existence of pain (p≤.05). Regarding the relationship between working conditions and the existence of pain, the variables“ amount of work per hour,“” amount of work per day,“” number of parts handled during work,“” work production per person,” and“ inconvenient postures or motions during work” were shown to have statistically significant relationships with the existence of pain(P≤.05). Regarding aspects of pain“, within 1~3 years” was the most common answer to time of occurrence of symptoms, with a percentage of 27.6%“; appear almost always” was the most common answer to frequency of symptoms, with a percentage of 37.1%;“ slight pain” was the most common answer to degree of pain, with a percentage of 50.5%; and“ moderate” was the most common answer to encumbrance caused by pain to living and work, with a percentage of 41.2%. The aim of the present study was to determine the factors that affect pain due to musculoskeletal diseases in industrial workers and to define the aspects of pain in order to provide basic data for the preparation of measures to prevent musculoskeletal diseases. To control pain due to musculoskeletal diseases, factors that affect pain, as well as the aspects of pain, should be recognized early, and efforts should be made to supplement and improve systems for preventing recurrence.

The purpose of this study was to assess the effects of Ankle exercise on balance ability of stroke patients. Participants' balance ability were measured prior to the training and they conducted ankle exercise. As for ankle exercises, ankle stretching training and ankle muscle strengthening training were performed for 10 minutes respectively. They did warm up exercise for 5 minutes and then ankle exercise for 20 minutes. And then they did cooldown exercise for 5 minutes. Their balance ability was measured after 9 weeks. According to the results of analyzing the change of balance ability that timed up and go and Berg balance scale score significantly improved but in the control group it did not significantly decrease. In comparison between the groups, Berg balance scale score significantly improved in the ankle exercise group compared to the control group. Ankle exercise performed by stroke patients are considered to be effective in improving balance ability.

Viral respiratory infections are common in horses, notably equine herpesvirus infection and equine influenza, which primarily initiate secondary bacterial respiratory infections such as strangles caused by Streptococcus equi equi. A decline in the production of stallions has been associated with these respiratory diseases leading to adverse financial implications. This study investigated the antibody responses against respiratory diseases in horses from Jeju Island a year after vaccination. A low level of equine herpesvirus type 1 (EHV-1) (11.36%) antibodies was detected from stallions, however a high level of EHV-4 (95.84%) antibodies was detected from horses without vaccination against this infection suggesting that EHV-4 is ubiquitous in this horse population. In case of equine influenza, ranch stallions showed low positive rate (12.06%) whereas stallions from Subtropical Livestock Research Institute displayed higher positive rate (81.32%). Antibody responses against equine influenza and strangles revealed positive rates of 26.32% and 55.12%, respectively. These findings may draw attention towards the importance of developing an improved disease prevention and/or immunization program that will effectively control respiratory diseases in horses.

In Hanoks which are Korean traditional houses, gudeuls (ondols) are more important than other elements. Recently, demand for Hanoks has been rapidly increasing thanks to the effects of Korean waves and rediscovery of traditions. This paper traced the process of development of gudeul construction technology to examine the definitions of terns and changes in the types of gudeuls and discussed the prospect of future gudeul construction technology.

본 연구는 제주도에서 사육되고 있는 한국 제주마의 혈통정보를 이용하여 근교계수 및 유효집단크기를 추정하여 제주마 집단의 구성 현황을 파악하고 향후 집단 유지 또는 개량하는데 기초자료로 활용하고자 한다. 제주특별자치도 축산진흥원의 제주마로 등록관리 되고 있는 2,486두의 혈통자료를 분석에 이용하였다. 세대별 평균 근교계수는 0.6~5.0%의 분포를 나타냈으며, 4세대 이후 세대가 증가할수록 근교계수는 증가하는 경향을 보였다. 평균세대간격은 9.22년으로 추정되었으며, 아비에서 아들 8.14년, 아비에서 딸 7.93년, 어미에서 아들 9.83년, 어미에서 딸은 10.66년으로 추정되었다. 출생년도에 따른 유효집단의 크기는 1.03두부터 128.23두까지로 추정되었으며 집단을 안정적으로 유지하기에는 어려움이 있을 것으로 사료된다. 따라서 제주마의 안정적인 집단의 유지를 위해서는 태어나는 모든 수말과 암말을 적절히 교배에 활용하여 제주마의 유전적 다양성을 확보하여야 할 것으로 판단된다.

The purpose of the present study is to provide exercises, together with music, that are helpful for elderly people’s balancing ability, and to determine their effects in order to provide data for the promotion of elderly persons’health. Thirty elderly persons were randomly assigned to a balance training group(BTG) of 15 subjects, or a music and balance training group (music therapy + balance training [MTBTG]) of 15 subjects; intervention was implemented three times per week for six weeks. To measure the changes in their balancing ability before and after the experiment, the limit of stability, the“Timed Up and Go”(TUG) test, and the Berg Balance Scale (BBS) were measured. Changes in the limit of stability before and after the experiment were shown to be significant in both the BTG and the MTBTG. Changes in the limit of stability of the right side before and after the experiment showed statistically significant differences between the BTG and the MTBTG. Changes in the TUG test and the BBS before and after the experiment were shown to be statistically significant in both the BTG and the MTBTG. The application of music during balance training thus is considered to have a positive effect on elderly persons’balancing ability.

The purpose of the present study is to apply Maitland orthopedic manual physical therapy to patients to examine the effects of the therapy on the digestive system through serum gastrin tests that can identify the motility of the digestive system and dyspepsia symptoms and can provide basic data for internal medicinal physical therapy. Maitland orthopedic manual physical therapy was implemented on 20 subjects in total, with 10 in a dyspepsia group and 10 in a control group, for 20 minutes per day, three days per week for three weeks, and the following results were obtained. In the control group, serum gastrin values significantly decreased between before and after treatment(p<.01), and among questionnaire items regarding dyspepsia, those regarding epigastric pain and belching showed significant decreases in these symptoms(p<.05). In the dyspepsia group, serum gastrin values significantly decreased between before and after treatment(p<.01) and all questions regarding dyspepsia showed significant decreases in all symptoms(p<.01). According to the analysis, the dyspepsia group decreased significantly more than the control group in serum gastrin values and all dyspepsia symptoms, except for belching(p<.001). Through the present study, it was identified that Maitland orthopedic manual physical therapy can improve dyspepsia symptoms and is an effective treatment method for internal diseases, such as dyspepsia, by improving gastric motility to become close to the normal state.

The goal of this study was to assess the effect of a group exercise program on cognitive function of elderly people. Subjects were chosen to be elders with dementia having minor to moderate degrees of cognitive function. Study was started out by randomly dividing the 16 subjects into two groups, each with 8 people; the group exercise group and the control group. The group exercise group performed 8 weeks of group exercise program and general physiotherapy while the control group only performed general physiotherapy. Cognitive function was measured by Korean version mini-mental state examination. The study group's attention and calculation statistically significantly improved but the control group saw no statistically significant change. The group exercise program affected improvement in cognitive function of elderly people with dementia and in particular, was effective for enhancing their attention and calculation.

The fact that flip-flops, one of many different types of unstable shoes, are light and relatively easy to put on, accounts for their popularity among people. But because flip-flops rely heavily on the support of a single thong between your first and second toes, they impose a huge amount of pressure onto lower leg. Thus in the following experiment we tried to examine the different effects of flip-flops and running shoes in terms of their effect on muscle activity and fatigue of tibialis anterior and gastrocnemius during walking. In order to measure an electromyogram we used Free EMG system. 10 men and 10 women in running shoes ran on treadmills for 15 minutes at 4.8km/h, 2 days later the same experiment was carried out, but this time, in flip-flops. p value turned out to be greater than .05 and thus there was no considerable difference between the effects of flip-flops and running shoes on muscle activity and fatigue during walking. Therefore we conclude that despite the fact that flip-flops are considered unstable, their effects on muscle activity and fatigue of tibialis anterior and gastrocnemius are negligible.

The purpose of this study was to examine the influences of chronic shoulder pain on the muscle tone in trunk muscles. The study's subjects were 40 men and women in their 30 to 50s, which were divided into two groups. A chronic shoulder pain group consisted of 20 subjects who had been diagnosed with chronic shoulder pain by doctors, and a painless group consisted of 20 subjects who had experienced no such pain. An analysis was performed using electromyography on the muscle tone in the rectus abdominalis, external oblique, internal oblique, and erector spinae muscles under the same conditions between the two groups. The analysis results were as follows. The chronic shoulder pain group exhibited an overall high level of trunk muscle tone than the painless group, along with a statistically significant difference in the rectus abdominalis(p<.05). Moreover, the chronic shoulder pain group showed differences in the trunk muscle tone depending on the affected side. The chronic left shoulder pain group yielded higher levels of muscle tone in the right-side trunk muscles. In particular, the group revealed statistically significant differences in the rectus abdominalis and internal oblique(p<.05). The chronic right shoulder pain group exhibited higher levels of muscle tone in the left-side trunk muscles with a statistically significant difference in the internal oblique(p<.05). The above results suggested that chronic shoulder pain influences increases in the muscle tone in the trunk muscles on the opposite side to the affected shoulder.

This study aims to address the effect of interferential current therapy and thereby to provide basic resources to physical therapies for internal medicine by identifying symptoms for functional dyspepsia and serum gastrin level that shows gastric motility. Following results were obtained by performing interferential current therapy to 16 subjects composed of 8 for functional dyspepsia group and 8 for control group for 20 minutes a day, 3 days a week, for 6 weeks. In control group, serum gastrin level was significantly( p<.01), lowered after the therapy whereas there was no significant difference observed in all questions from questionnaire for symptoms of functional dyspepsia between before and after the therapy. In functional dyspepsia group, serum gastrin level was significantly(p<.01), lowered after the therapy and there was also significant(p<.01) reduction in every question from questionnaire for symptoms of functional dyspepsia between before and after the therapy. There was more significant decrease in serum gastrin level and reduction in questionnaire for symptoms of functional dyspepsia in the functional dyspepsia group compared to the control group(p<.01). This study confirms the interferential current therapy as an effective therapeutic method for internal diseases including functional dyspepsia since it not only improves the symptoms of functional dyspepsia but also allows the gastric motility close to normal.

Beet armyworm, Spodoptera exigua are difficult to control using chemical insecticides because of the development of insecticide resistance. For eco-friendly beet armyworm managements, various control agents are required. Entomopathogenic fungus is one of promise control agents as an alternative to chemcal control agent. We conducted bioassays with entomopathogenic fungi to select high virulence isolate to larva of beet armyworm. The bioassay was used 150 entomopathogenic fungal isolates which were isolated from soil samples of nine provinces by insect-bait method using Galleria mellonella and Tenebrio molitor. . Three isolates, Metarhizium spp. FT83, FT89 and FT90 had high virulence as 84.6%, 100% and 100%, respectively, against S. exigua. The medial lethal time(LT50) of conidia of three isolates was 5.01, 2.99 and 2.92days respectively.

The purpose of this study was to assess the effects of lower extremity resistance training using elastic bands on balance in elderly people. Eight elderly persons each were randomly assigned to a test group(resistance exercise group, REG) or a control group(CG). FRT and TUG test were used to compare balance before and after exercise. Exercise programs were implemented three times a week for 40 minutes for nine weeks. They did warm-up exercise for 5 minutes and then lower extremity resistance exercise using elastic bands for 30 minutes. And then they did cool-down exercise for 5 minutes. TUG and FRT significantly decreased but in the control group it did not significantly decrease. In comparison between the groups, TUG and FRT significantly reduced in the resistance exercise group compared to the control group. Lower extremity resistance training using elastic bands performed by elderly persons are considered to be effective in improving balance.

The nasal cavity encounters various irritants during inha¬lation such as dust and pathogens. To detect and remove these irritants, it has been postulated that the nasal mucosa epithelium has a specialized sensing system. The oral cavity, on the other hand, is known to have bitter taste receptors (T2Rs) that can detect harmful substances to prevent ingestion. Recently, solitary chemosensory cells expressing T2R subtypes have been found in the respiratory epithelium of rodents. In addition, T2Rs have been identified in the human airway epithelia. However, it is not clear which T2Rs are expressed in the human nasal mucosa epithelium and whether they mediate the removal of foreign materials through increased cilia movement. In our current study, we show that human T2R receptors indeed function also in the nasal mucosa epithelium. Our RT-PCR data indicate that the T2R subtypes (T2R3, T2R4, T2R5, T2R10, T2R13, T2R14, T2R39, T2R43, T2R44, T2R 45, T2R46, T2R47, T2R48, T2R49, and T2R50) are expressed in human nasal mucosa. Furthermore, we have found that T2R receptor activators such as bitter chemicals augments the ciliary beating frequency. Our results thus demonstrate that T2Rs are likely to function in the cleanup of inhaled dust and pathogens by increasing ciliary movement. This would suggest that T2Rs are feasible molecular targets for the development of novel treatment strategies for nasal infection and inflammation.