Purpose: This study aims to verify the effectiveness of acute anodal transcranial direct current stimulation (A-tDCS) using Halo Sport headset device on golf performance in professional golfers. Research design, data, and methodology: Eight professional golfers who voluntary participated in high-level golf tournaments were recruited in this study. They attended one single-session intervention which was stimulated by Halo Sport headset device (n=8). The A-tDCS halo sport session lasted for 20 minutes and stimulated on the motor control area of the cortex (M1). Four golf swing performance tasks (driver, iron, 100-yard shot, 50-yard shot) were performed before and after halo intervention. Key indicators of golf swing performance (Club Speed, Face Angle, Ball Speed, Smash Factor, Spin Rate, Side, Carry, Total) were collected by Trackman launch monitor. Results: In Halo session, there were no found statistical significance in driver, iron and approach (100, 50 yards) after intervention (P<0.05). Even some of variables (face angle, smash factor, carry and total distance) in driver, distance accuracy of 100 yards and direction accuracy of 50 yards were slightly improved tendency, but it was not significant (P<0.05). Meanwhile, there was any enhance all of variables in iron. Conclusions: As a result, the current study concludes that the acute A-tDCS halo sport intervention has no effect on the positive golf performance improvement for professional players. Further implications were discussed.
This study was carried out the group communication program which I had composed of using the Satir's communication family theory and skills. The purpose of this study was to investigate the effects on the dysfunctional communication self-esteem and depression, executed this program for the mothers group with caring the mental disorders. and then for the test of some hypotheses it was devided two groups ; the experimental group(n=20) and control group(n=25). In the control group they were learned two session family education program in the psychiatric clinics of Pusan National University Hospital and in the experimental group they had experienced during the 10 session by the group communication program. In the methods of the statistics on this datas, it was to statistics X²test for the comparison between the experimental group and control group with general characteristics. The effect of the Group Communication Program was to analyse ANCOVA between pre-post test on the disfunctional communication, self-esteem and depression in the control group and experimental group. The conclusions were derived from the results and test of hypothesis as followings ; 1) The results were tested the differentiation between the experimental and control group, and the pre-post test in the experimental group with dysfunctional communication self-esteem and depression. Some hypothesis were tested and supported as followings : It was supported that the level of dysfunctional communication of the experimental group would be lower than the control group (Hypothesis 1) It was supported that the level of self-esteem of the experimental group would be higher than the control group (Hypothesis 2). It was supported that the level of depression of the experimental group would be lower than the control group (Hypothesis 3). 2) The relation of the dysfunctional communication with the self-esteem was presented negative correlation and with the depression was not correlation. The relation of the self-esteem with the depression was presented significantly negative correlation. The relation of the sacrificuny pattern of dysfuntional communication with the self-esteem was presented negative correlation and with the depression positive correlation.
Journal of the Korea Academia-Industrial cooperation Society
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v.10
no.1
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pp.96-103
/
2009
This paper presents a L3 mobile terminal platform of the mobile terminal system which is a subsystem of HMm(Hig-speed Mobile Multimedia) system, which layer 3 control protocols such as RC(Radio Control), SC(Session Control), MC(Mobility Control) and application services such as VOD, FTP, VoIP for a multimedia mobile terminal are implemented on. The hardware platform is based on PXA255 and supports various interfaces and multimedia devices, and under the platform, an embedded Linux generated by the self-maden cross-toolchain, L3 control protocols and application programs were installed. The operation of HMm system under the HMm testbed has shown that this platform successfully supported SIP services, web browsing services, streaming services and etc as well as call processing. It could be the reference of the upcoming Fourth-Generation mobile terminal which the multimedia functionality will be enforced.
When the parents are unable to control anger properly, it can have a negative effect on their children. Therefore, parents need anger control ability very much. The purpose of this study is to develop a parent education program to improve anger control ability of parents of elementary school children so that it could help them to perform their parental role. The development of the program followed the procedure of analysis, design, development, execution, and assesment. In the analysis stage, previous studies were examined to explore in depth the ways to improve anger control ability. In the design stage, the goals were confirmed and learning objective for each session was defined, and according to this, the contents of education were selected. In the development stage, 8 sessions of education activities were formulated with 2 hours for each session and experts were consulted to examine the validity of the contents. In the execution stage, the operating method was proposed and the program was applied with a total of 8 sessions, 1 session for a week. In the final assessment stage, the effect of the program was assessed. Assessment of the program was carried out by both quantitative and qualitative methods. The quantitative method was verified by pre-and-post comparison, and analyzed by Wilcoxon Signed Ranks Test. For the qualitative method, questionnaire and interview were used. After the program was implemented, the pre-and-post comparison was carried out. The result shows there was significant improvement in both anger control ability of parents and parenting efficacy. Also, participants reported the program was very helpful for increasing parenting skills in many aspects. Lastly, the researcher of this study proposed the direction for further development of the program.
Introduction : The aim of the study is to investigate the suppressive action of electroacupuncture on cold alloynia development in the rat model of neuopathic pain. Methods : To produce neuropathic pain, the right superior caudal trunk was resected $1{\sim}2\;mm$ between S1 and S2 spinal nerves. The rats were divided into control and four electroacupuncture groups: Two electroacupuncture groups were given 2 Hz or 100 Hz electroacupuncture for 20 minutes everyday after the sacral nerve injury. Other two electroacupuncture groups were given 2 Hz or 100 Hz electroacupuncture for 20 minutes just one session at one hour after the sacral nerve injury. The right point of Joksamni (ST36) was applied for electroacupuncture. The control group was induced neuropathic pain without electroacupuncture. The cold allodynia was assessed by immersing the tail in $4^{\circ}C$ water. The latency to an abrupt tail movement after rat tail immersion was measured with a cut-off time of 15 sec at 4th, 7th and 14th day after the sacral nerve injury. Results : The results were as follows; 1. At 4th experimental day, there were no significant differences between 2 Hz or 100 Hz electroacupuncture groups and the control group. 2. At 7th experimental day, everyday 2 Hz or 100 Hz electroacupuncture groups showed significant differences compared with the control group. But There were no significant differences between 2 Hz and 100 Hz electroacupuncture groups. 3. At 14th experimental day, everyday 2 Hz electroacupuncture group showed significant differences compared with the control group. But everyday 100 Hz electroacupuncture group showed no significant difference compared with the control group and everyday 2 Hz electroacupuncture group. 4. There were no significant differences between the control and 2 Hz or 100 Hz electroacupuncture groups which were done just one session at one hour after the surgery. 5. Everyday 2 Hz electroacupuncture group showed significant differences in the one session of the 100 Hz electroacupuncture group. Conclusion : Everyday 2 Hz electroacupuncture exerts a suppressive action on cold allodynia development in the rat model of neuropathic pain.
Journal of Institute of Control, Robotics and Systems
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v.6
no.8
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pp.638-651
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2000
When the bandwidth resources in a packet-switched network are shared among sessions by MAX-MIN flow control each session is required to transmit its data into the network subject to the MAX-MIN fair rate which is solely determined by network loadings. This passive behavior of sessions if fact can cause seri-ous QoS(Quality of Service) degradation particularly for real-time multimedia sessions such as video since the rate allocated by the network can mismatch with what is demanded by each session for its QoS. In order to alleviate this problem we extend the concept of MAX-MIN fair bandwidth allocations as follows: Individual bandwidth demands are guaranteed if the network can accommodate them and only the residual network band-width is shared in the MAX-MIN fair sense. On the other hand if sum of the individual bandwidth demands exceeds the network capacity the shortage of the bandwidth is shared by all the sessions by reducing each bandwidth guarantee by the MAX-MIN fair division of the shortage. we present a novel flow control algorithm to achieve this extended MAX-MIN fairness and show that this algorithm can be implemented by the existing ATM ABR service protocol with minor changes. We not only analyze the steady state asymptotic stability and convergence rate of the algorithm by appealing to control theories but also verify its practical performance through simulations in a variety of network scenarios.
Objectives : The aim of this study was to investigate difference of the effects of transcutaneous electrical nerve stimulation(TENS) with different frequencies in participants having delayed onset muscle soreness(DOMS). Methods : We recruited 36 healthy participants, but 3 of them were dropped out. They were randomly divided into 3groups : 3 Hz TENS(n=11), 100 Hz TENS(n=11) and sham TENS(n=11). DOMS of the both triceps surae muscle induced by repetitive concentric, ecentric exercise. The result measurements were pain perception(visual analogue scale, VAS), mechanical pain threshold(MPT) by pressure algometer, electrical contraction and fatigue by surface electromyography. The measurements were on first visit, before and after treatment except first. This study was prospective, randomized, controlled, single-blinded trial. Results : In 100 Hz TENS group, VAS was significantly decreased during whole session compared with 3 Hz and control group, and after each treatment, too. In 3 Hz TENS group, VAS was significantly decreased during whole session compared with control group, and after 2nd, 3rd treatment, too. In 100 Hz TENS group, MPT increased the most among 3 groups during whole session and after 1st treatment, but there were no statistical significances. Conclusions : Both 3 Hz and 100 Hz TENS improved delayed onset muscle soreness, but 100 Hz TENS group is more effective than 3 Hz TENS group.
The Journal of Korean Institute of Communications and Information Sciences
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v.40
no.3
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pp.529-540
/
2015
The NGN should support an ubiquitous environment in which users can use multiple devices. Especially, services should be provided to users in a seamless manner across multiple devices which are dynamically found in users' vicinity. Therefore, supporting service continuity is essential in the NGN. Currently the IMS, which is a session control layer for the NGN, deals with session control procedures in detail for service continuity. However, the IMS provides limited methods how users can find target terminals for transferring the session. The target terminals tend to be located near in user's physical location, and could be shared among different users. For providing better service experience in the NGN, The NGN needs to encompass methods to enable for users to use the dynamically-found terminals in users' vicinity seamlessly. In this paper, we introduce a novel registration method based on virtual ISIM by which the target terminals in user's vicinity can register themselves to the IMS, and also we discuss how service continuity is supported.
Journal of the Korea Institute of Information Security & Cryptology
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v.21
no.4
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pp.101-114
/
2011
As it seems like critical information leakages have been increasing due to industrial espionage and malicious internal users, the importance of introducing audit and log security technology is growing every now and then. In this paper, we suggest the session logging system for the company's internal control to meet the SOX legislation level, by monitoring and analyzing users behaviors connecting to the business-critical Operating System. The system proposed in this paper aims to monitor the user's illegal activities in the Operating System, and to present the clear evidence of purpose of those activities by detailed logs. For this purpose, we modified Operating System by adding multiple services suggested in this paper. These services utilize interfaces provided by the existing Operating System and add functions to control access and get logs. The system saves and manages session logs of users or administrators connected to the server with centralized log storage. And the system supports session log searching and lookup features required by SOX legislation for the company's internal controls with the level of computer forensics and logging technology.
The Journal of Korean Institute of Communications and Information Sciences
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v.37B
no.12
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pp.1148-1159
/
2012
It is of great significance in the NGN - which supports a ubiquitous network environment in which users can use multiple devices and all the devices are connected to networks - to support the terminal mobility as well as service continuity. The IMS architecture, which is considered as session control layer in the NGN, exists to support a wide range of advanced new services in addition to the traditional voice and data connectivity offerings of "old" telecommunications. The recent IMS specification also defines IUT (Inter UE Session Transfer) functionality in order to support service continuity in the NGN. However, service continuity in IMS has a limitation that two terminals involved in session transfer should belong to the same user. In this paper, we proposed a new device discovery mechanism for IMS and extended UEs with a few capabilities to overcome some of IMS's limitations. We also analysed how much overhead of the proposed method in terms of signaling cost will be.
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