Objective: The purpose of this study was to investigate the effect of sprinter pattern bridging exercise using theraband on activation of lower extremity and abdominal muscle and to find out postures that can effectively improve abdominal and lower extremity muscle strength and increase abdominal stability. Methods: This study was designed as a cross-sectional study. The following research was done with applicants attending S university in Seoul to compare the difference in muscle activity between one-leg-Support bridging exercise and sprinter-pattern bridging exercise using theraband. For 48 study participants, we first measured their MVC. Then, we applied one-leg-support bridging exercise and sprinter-pattern bridging exercise at random order. These data were expressed as the percentage of maximal voluntary contraction (%MVC).Electromyography analysis was performed by measuring the external obliques, internal obliques, biceps femoris, and gluteus maximus. Results: There was a statistically significant increment of muscle activity in external and internal oblique muscle(p<0.001)by sprinter-pattern bridging exercise using theraband. On the lower body, statistically significant increment of muscle activity in biceps femoris and gluteus maximus was found(p<0.05). On the other hand, on erector spinae, there was statistically significant decrease in muscle activity(p<0.05). Conclusions: Efficient treatment is expected when sprinter-pattern bridging exercise using theraband is applied clinically.For patients with chronic knee and ankle pain who have difficulty bearing weight, including low back pain and internal rotation of the femur, starting with a low weight bearing, we think it will be helpful in planning systematic training aimed at progressively strengthening the lower extremities.
The theme of Caucasus in Russian literature stemmed from A. Pushkin's The Prisoner of the Caucasus (1820) became expended when it reached to writer Bestuzhev-Marlinsky. The writer's magnum opus, Allamat-Bek (1832), was based on a real historical event. Being proponent to the side of Russian ideology, this work strongly presents that the primary task the Russian Imperialist government paused in this region at the time was civilization of the Caucasus through diplomatic and humanistic ways. There are three main protagonists in this work, but Berkhovsky and Sultan Akhmet-Khan are the characters who stand for the contradictory views toward the "war between Russia- Caucasus." While the former, Berkhovsky, thinks that the conflict between the two parties might be solved by means of communication and cooperation, the latter, on the other hand, is opposed to any of peaceful completion of this war. Allamat-Bek, the main hero of this work, however, passes away, going back and forth between loyalty and renegation. The author goes on to describe that Berkhovsky considers the Caucasus as Eden, the land of fruits, unlike Russia which appears as the land of labor. Yet, for Berkhovsky the Caucasus is presented as the land which needs enlightenment. This is the transformation of the so-called typical Western Orientalism. Bestuzhev-Marlinsky does not take side of either evil or good between the Russian Orthodoxy and the Islam, that is the conflict between the two opponent parties. The writer, instead, argues that this is just difference between the familiar and the strange, that is, the svoi and the chuzhoi. What is the very picture the writer wants to show the reader, then, is that it is petty and sad to see the unavoidable violent progress which happened and experienced by the indigenous people during the civilization of the Caucasus by the Russian Imperialist government.
A record-breaking high surface air temperature of 41.0℃ was observed on 1 August 2018 at Hongcheon, South Korea. In this study, to quantitatively determine the formation mechanism of this extremely high surface air temperature, particularly considering the contributions of the foehn and the foehnlike wind, observational data from Korea Meteorological Administration (KMA) and the Weather Research and Forecasting (WRF) model were utilized. In the backward trajectory analysis, trajectories of 100 air parcels were released from the surface over Hongcheon at 1600 LST on 1 August 2018. Among them, the 47 trajectories (38 trajectories) are tracked back above (below) heights of 1.4 km above mean sea level at 0900 LST 31 July 2018 and are defined as upper (lower) routes. Lagrangian energy budget analysis shows that for the upper routes, adiabatic heating (11.886 × 103 J kg-1) accounts for about 77% of the increase in the thermal energy transfer to the air parcels, while the rest (23%) is diabatic heating (3.650 × 103 J kg-1). On the other hand, for the lower routes, adiabatic heating (6.111 × 103 J kg-1) accounts for about 49% of the increase, the rest (51%) being diabatic heating (6.295 × 103 J kg-1). Even though the contribution of the diabatic heating to the increase in the air temperature rather varies according to the routes, the contribution of the diabatic heating should be considered. The diabatic heating is caused by direct heating associated with surface sensible heat flux and heating associated with the turbulent mixing. This mechanism is the Type 4 foehn described in Takane and Kusaka (2011). It is concluded that Type 4 foehn wind occurs and plays an important role in the extreme event on 1 August 2018.
Kim, Jae-Sung;Kim, Dong-Hee;Back, Myung-Hwa;Jeon, Jae-Heung;Lee, Young-Bok
Horticultural Science & Technology
/
v.19
no.4
/
pp.515-520
/
2001
To observe the stimulating effect of low dose ${\gamma}$ radiation on the dormancy breaking and growth, microtubers of two potato cultivars (Solanum tuberosum L. cv. Dejima and cv. Superior) were irradiated at the dose of 0.5-30 Gy. Though it varied with cultivars and storage duration, sprouting rate, plant growth and tuber yield were promoted by 2-8 Gy irradiation in microtuber of 'Dejima' stored at low temperature. On the other hand, in microtuber of 'Superior', sprouting rate was promoted by 2 and 4 Gy irradiation, and the growth and tuber yield by 4 Gy irradiation. These results suggest that low dose of ${\gamma}$ radiation could have stimulating effects on the dormancy breaking of microtuber and potato growth.
Journal of the Korea Academia-Industrial cooperation Society
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v.21
no.6
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pp.640-645
/
2020
To produce an input device stably using the transparent electromagnetic pattern of an electromagnetic induction method, pattern inspection is required in advance in the production process. Various methods of inspecting the capacitive pattern for hand-touch have been proposed, but it is difficult to find the related technical data for the pattern inspection method of the transparent electromagnetic induction method. In this study, to develop an inspection system for a fused electromagnetic resonance pen sensor with a copper-etched metal mesh pattern, an inspection algorithm and method for measuring the antenna impedance inside the sensor was proposed by measuring only the exposed FPCB connector. The proposed method was configured as a control board consisting of a microprocessor that forms a loop between specific channels according to the command of a computer, a computer-controlled by the Windows program, an LCR meter measuring the impedance between specific channels, and transmitting the measurement results back to the computer. An evaluation of the proposed system and measurements of nine specimens showed that it could detect the defects of the sensor used in the actual product.
PARK, Yong Woo;BACK, Sehum;PARK, Shin Hyoung;KWON, Oh Hoon
Journal of Korean Society of Transportation
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v.34
no.6
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pp.535-547
/
2016
This study aims to identify factors that affect the degree of injury severity sustained in traffic crashes on work zone of Korean expressways. To this end, decision tree method was applied to identify influential factors on injury severity and compare characteristics of those factors between work zone and non-work zone. The results from the comparison show that the risk of severity was low when traffic volume and heavy vehicle ratio are high because the factors lower the overall section speed. On the other hand, when the traffic volume and the heavy vehicle ratio are low, the section speed increased and the tendency for high injury severity was confirmed. These findings are expected to help transportation planners and engineers understand which risk factors contribute more to severe injury in the work zones such that they can effectively prepare and implement safety countermeasures.
Purpose: The purpose of this study was to identified patterns of studies and to analyze the nursing research related to the massage intervention in Korea and to improve direction of nursing research in massage intervention in Korea. Methods: The research studies related to the massage were selected from the Korean Nurses Academic Society Journal and dissertation which were conducted experimental research design the last 7 years in Korea. The total numbers of the studies were 58. Result: The study subjects were post operational state in 34.5%, healthy adult in 17.2% studies. The others dealt with infant, cancer, dementia, hypertension, preterm neonates, elderly. Types of massage were whole body in 31.1%, foot in 22.6%, hand in 17.2%, back in 13.8% studies. And Meridian massage in 17.2%. Length of massage was below 5 minutes in 17.2%, 6~10 minutes in 29.4% and 11~20 minutes in 32.8% studies. Frequency of massage was only 1 time in 25.9%, 2~5 times in 31.1% studies. Massage produced psychological and physiological effects. Positive psychologic effects were anxiety relief, pain relief, mood enhancement and fatigue relief. Positive physiologic effects on body systems were blood pressure, heart rate, edema, skin temperature, immune system, blood glucose, excretion, PMS syndrome and growth and development. Conclusion: As a result, effects of massage were almost positive. Therefore massage is useful alternative nursing intervention. But more attention research is needed to identify the objectivity instrument to measure and repeat research.
Journal of the Korea Fashion and Costume Design Association
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v.13
no.4
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pp.79-91
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2011
This study divided school age by considering a change in the stage of body growth by age in elementary schoolgirls with the use of body scan data, and considered by comparing body size characteristics by school age. Elementary schoolgirls' body shape cannot be divided clearly. However, ages 7-10 were bound into the same group for the majority of girth, width, and thickness items. 7-8 years old, 9-10 years old, and 11-12 years old were bound into the same group in most items except ages 9 and 10 for the height item. Thus, significant difference was indicated between groups. Accordingly, this study divided the school age into three periods such as early stage(ages 7-8), middle stage(ages 9-10), and late stage(ages 11-12) in consideration of the stages for elementary schoolgirls' body-shape growth. As a result of analyzing body size according to division of school age, the higher school age leads to continuous growth. The notable growth was indicated especially in the middle stage and late stage. Examining centering on typical items related to the clothing construction, there was notable increase in waist thickness and hip thickness between early and middle stages and in height, weight, breast girth, waist circumference, back length, breast width, and waist width between middle and late stages. On the other hand, hip circumference, hip width, breast thickness, and length between shoulder edges were indicated to grow relatively and evenly among early, middle, and late stages. The lateral form was shown a clear difference in the forms of early, middle, and late stages in height and length of the whole body shape and in side thickness. The early and middle stages belong to body shape that abdomen is projected to be curved. The late stage showed right body shape which is straight and stable form in posture.
Meridians are often defined as passway of Ki and Blood or something that can control funtions of the body. It is true but I think meridians have something more than that. Meridians are not just passway of Ki and Blood, rather they receive Ki from outside and transform it into Essence-Ki(精氣). If we draw a line in a body, we have Chang-Pu inside and meridians outside. Chang-Pu whim is inside our body hold Essence-Ki and manipulate it. These Chang-Pu also have variation of Ki accumulation-Tai-Yang, Soyang, T'ae$\breve{u}$m, Soum. Nevertheless, their gradients are not great so Ki flow among them are not great either. If there are much Ki flow in our body there will be much Ki consumption resulting in exhaustion of Essence-Ki, which is very hard to acquire. Therefore Chang-Pu keeps less gradient by not moving Ki a lot to preserve Essence-Ki. Chang-Pu, inside, are suitable for storing Ki while meridians, outside, are for producing Ki. Meridinas have great difference in Ki accumulation so there are great flow of Ki. This nature is suitable for producing Ki. For example, roots and limbs of a tree don't have much gradient in Ki. They are concentrated and their shape are not very distinct. On the other hand, leaves are wide and it's easy to tell front from back. It means their Ki gradient is great and their Ki flow is also great. Therefore they suitable for producing Ki. Just like this, meridians in our body are suitable for producing Ki. Areas that meridians cover are much wider than that of Chang-Pu. Four limbs and surface of our body are very distinctive. Ulnar side is high in Ki accumulation but is small in volume so it's better to store Ki there. Radial side is low in Ki accumulation but big in volume so it's better to receive and consume Ki there. Meridians are deeply involved in producing and storing Ki.
A statistical approach was carried out to analyze joint moments acting on the six subjects performing a right-handed seated task. The dynamic task analyzed consisted of moving a hand-held weight of lkg mass back and forth in front of a subject's chest at the shoulder level in an upright seated position. We used experimental data obtained in the Biomechanics Laboratory of the University of Michigan. Based on the acquired data from three trials by each subject, moments were calculated using a 3-dimensional biomechanical model at such articulations as wrist, elbow, shoulder, the third lumbar spine, hip, knee, and ankle joints. The linear correlation and the two way analysis of variance were applied to the calculated joint moments in order to investigate inter-subject and inter-trial varations. The results obtained showed that the largest magnitude and deviation of moment was found at the third lumbar spine, that any linear relationship could not be found between moment and its equivalents attempted in this study, and that the maximum value and deviation of moment acting on each joint were statistically the same for all three trials but those were statistically not the same for all six subjects.
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