• Title/Summary/Keyword: BOLD effect

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The Effect of Types of Initial Drive-in Steps on Technical Factors in Basketball

  • Park, Sangheon;Yoon, Sukhoon
    • Korean Journal of Applied Biomechanics
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    • v.28 no.3
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    • pp.181-185
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    • 2018
  • Objective: The purpose of this study was to investigate the effect of types of drive-in initial steps in basketball on technical factors, to provide basic information for the enhancement of basketball skill. Method: Ten men (age: $24.70{\pm}2.26years$; height: $181.00{\pm}5.72cm$; weight: $75.70{\pm}8.23kg$; career length: $10.00{\pm}3.59years$), each with a career length of over five years and no history of injury to the lower extremities within the prior six months, participated in this study. They were asked to perform four types of drive-in movements at $35{\sim}60^{\circ}$, wearing their own shoes, after running from a start line 5 m away and catching a basketball passed by an expert passer. The drive-in movements were measured by eight infrared cameras (Oqus 300, Qualisys, Sweden). Collected raw data were used to calculate total initial step time, displacement, velocity, center of mass (COM) height, and COM velocity. Results: Total initial step displacement and velocity of cross drive-ins (JC, SC) were greater than that of direct drive-ins (JD, SD; p < .05). COM velocity of cross drive-ins (JC, SC) was also greater than that of direct drive-ins (JD, SD; p < .05). Conclusion: Our results indicated that cross drive-ins, regardless of stop step type, are more effective than direct drive-ins. This is because cross drive-ins are technically bold due to less influence from walking violations and double dribble rules in basketball. However, using one-sided movement is too difficult to play in competitive game; therefore, basketball players should develop the ability to choose appropriate movement frequency.

The Epistolary Novel and Samuel Richardson's Heroines: Female Writers and Readers of Letters

  • Chung, Ewha
    • Journal of English Language & Literature
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    • v.56 no.6
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    • pp.1067-1090
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    • 2010
  • The epistolary novel, as developed and refined by Samuel Richardson (1689-1761), is concerned with distinctly private experience and the morality of individuals-Richardson's heroine writers. In contrast to nineteenth-century novels, which explore their subjects through the overview of a narrator with a singular moral outlook, the epistolary narrative allows Richardson to examine the various different ways in which individuals/heroines interpret, mold, and respond to their experiences in writing. In this paper, I argue that the authorial voice of Richardson does not control the narrative but rather is present in the prefaces, character sketches, notes and occasional interjections between letters. Although there is little doubt as to whether Richardson intended to make a particular moral point or attempted to control the effect of his novels on his readers, the heroines and their letters dominate the novels so that they put the authorial suggestions in a different light, reducing the author's to one voice among several. Thus, Pamela's letters are exemplary for the vigor and intelligence with which they appear to be written, rather than for the imposed morality of their ghost writer-Richardson. Although Clarissa is of a different social class from Pamela, both heroines are united in their oppression as victims of a patriarchal society. In Clarissa's letters, the heroine's situation and experience are seen through her own writing in dialogue with that of her confidante Anna Howe, and in contrast to the writing of her oppressors. Clarissa, then, becomes a struggle between different discourses in which their genesis and effect, and the societies and individuals from which they come are implicitly suggested in Richardson's text. While Richardson may or may not be guilty of taking the writing of women and using it for his own ends, his epistolary novels represent a deliberate and bold attempt to shape the novel in a way conducive to his heroines and to women writers.

The increase of blood vessels using a signal during the image acquisition phase T1 shortening effect (위상영상 획득 시 T1 shortening effect를 이용한 혈관의 신호 증가에 관한 연구)

  • Lee, Ho-Beom;Choi, Kwan-Woo;Son, Soon-Yong;Min, Jung-Whan;Lee, Jong-Seok;Yoo, Beong-Gyu
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.7
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    • pp.4704-4710
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    • 2015
  • The purpose of this study is to obtain a useful diagnostic image by increasing the signal strength of the peripheral artery, was to use a T1 shortening effect of gadolinium contrast agents to improve the disadvantages of the phase image. From october to december 2014 thirty patients were underwent the MRI scanning, except for heart disease. Research method was evaluated comparing the image after gadolinium contrast MR image acquisition step before evaluating the difference between the signal intensity for T1 shortening effect. In frontal lobe 19.45%, temporal lobe 23.09%, occipital lobe 25.45%, parietal lobe 18.82%, cerebellum 20.93% after peripheral arterial signal strength results of gadolinium contrast agent injection was increased significantly after injection of gadolinium both statistically significant. After injecting a contrast agent gadolinium in SWI by increasing the signal strength of the T1 shortening effect can be obtained when using the phase image to give a useful image in diagnosis and treatment.

The Effect on Activity of Cerebral Cortex by Key-point Control of The Adult Hemiplegia with fMRI (fMRI를 이용한 성인 편마비의 항조절점 운동이 대뇌피질의 활성화에 미치는 효과)

  • Lee Won-Kil
    • The Journal of Korean Physical Therapy
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    • v.15 no.3
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    • pp.295-345
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    • 2003
  • This study investigated activation of cerebral cortex in patients with hemiplegia that was caused by neural damage. Key-point control movement therapy of Bobath was performed for 9 weeks in 3 subjects with hemiplegia and fMRI was used to compare and analyze activated degree of cerebral cortex in these subjects. fMRI was conducted using the blood oxygen level-dependent(BOLD) technique at 3.0T MR scanner with a standard head coil. The motor activation task consisted of finger flexion-extension exercise in six cycles(one half-cycles = 8 scans = $3\;sec{\times}\;8\;=\;24\;sec$). Subjects performed this task according to visual stimulus that sign of right hand or left hand twinkled(500ms on, 500ms off). After mapping activation of cerebral motor cortex on hand motor function, below results were obtained. 1. Activation decreased in primary motor area, whereas it increased in supplementary motor area and visual association area(p<.001). 2. Activation was observed in bilateral medial frontal gyrus, middle frontal gyrus of left cerebrum, inferior frontal gyrus, inter-hemispheric, fusiform gyrus of right cerebrum, superior parietal lobule of parietal lobe and precuneus in subjedt 1, parahippocampal gyrus of limbic lobe and cingulate gyrus in subject 2, and inferior frontal gyrus of right frontal lobe, middle frontal gyrus, and inferior parietal lobule of left cerebrum in subject 3 (p<.001). 3. Activation cluster extended in declive of right cellebellum posterior lobe in subject 1, culmen of anterior lobe and declive of posterior lobe in subject 2, and dentate gyrus of anterior lobe, culmen and tuber of posterior lobe in subject 3 (p<.001). In conclusion, these data showed that Key-point control movement therapy of Bobath after stroke affect cerebral cortex activation by increasing efficiency of cortical networks. Therefore mapping of brain neural network activation is useful for plasticity and reorganization of cerebral cortex and cortico-spinal tract of motor recovery mechanisms after stroke.

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The Cerebral Activation of the Emotional and Linguistic Attributes during Visual Word Recognition: fMRI Study (시각 단어 재인동안 정서적 속성과 언어적 속성에 의해 활성화되는 대뇌 영역 : fMRI 연구)

  • Park, Chang-Su;Han, Jong-Hye;Choi, Moon-Gee;Nam, Ki-Chun
    • Proceedings of the Korean Society for Cognitive Science Conference
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    • 2006.06a
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    • pp.53-58
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    • 2006
  • We examined the cerebral activation of the emotional and linguistic attributes during the visual word recognition. This research investigated the affective priming effect preserving the behavioral paradigm. We used the primed-evaluation task in which the participants classify the target as positive or negative, and manipulated the emtional attributes by emtional relations of the prime-target word pairs(PP, PN, NP, NN). ROIs analyses for the semantic processing and emotional processing were performed. The results showed that the semantic processing areas including the IPL, SMG, and aSTS were activated differently according to the experimental condition. The activations of the IPL were increased only on the NN condition, whereas the activation of the SMG was decreased only on the PP condition. Furthmore, the activation of the emotional processing areas including the mPFC and ACC, was different according to the emotional realtions of word pairs. Similar to the SMG, the BOLD signal of the mPFC was decreaed only on the PP condition, whereas the activation of ACC was Increased only on the NN condition. These results were seemed to show the interact ive cerebral activations for processing the emtoional and linguistic attributes in a word, during visual word recognition.

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Choice Factors of Transshipment Port in Northeast Asia

  • Park, Nam-Kyu;Lim, Chae-Kwan
    • Journal of Navigation and Port Research
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    • v.33 no.7
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    • pp.491-500
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    • 2009
  • In order to attract more transshipment cargoes, Busan Port Authority (BPA) has, since 2003, adopted the volume incentive policy by which more than US$ 10 million annually have been paid back to shipping lines that were called at the port. However, having been a transshipment port for the Northeast region of China, the port of Busan has come under threat from bold Chinese port development projects, notably Shanghai, as northern Chinese regionnl ports place more emphasis on building facilities capable of handling growing trade volumes. Undoubtedly this would lead to a decline in transshipment container traffic moved via Busan. The purpose of this paper is to identify some core factors that have been affecting the increase of transshipment cargoes of Busan and further to recommend BPA an improved incentive scheme with which more T/S cargoes can be attracted into the port of Busan To clarity the reason why T/S cargoes have increased in the port of Busan, several steps are made as follows: The first step is to make a quantitative model for explaining the development of T/S cargoes during the last decade. The second step is to define the dependent and the independent variables for multiple regressions after testing variable significance. For this, data collection and the accuracy of validation have been done by the direct interview with the experienced staffs in shipping companies of both domestic and foreign country. After validating the model with collected data, the final step is to find variables which are explaining the model mostly. In conclusion, 2 variables were clearly identified as core factors that explain well the development of T/S cargoes in the port of Busan: 'Mohring effect' and total cost. It is strongly recommended, by an empirical study, that an incentive scheme be changed to a way which more feeder vessels rather than mother vessels can reduce their direct costs to call in the port of Busan.

A Study on Gianni Versace's Idea Source for Fashion Design (지아니 베르사체의 패션디자인 발상 연구)

  • Oh, Yun-Jeong;Kim, Ji-Young
    • Journal of the Korean Society of Costume
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    • v.61 no.8
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    • pp.18-31
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    • 2011
  • Gianni Versace was a designer who established his unique fashion world by thinking creatively and using rich design sources. The purpose of this study is to present designers a methodology for creative and characteristic design development by searching Gianni Versace's idea source for fashion design. As a method of the study, visual and textual data were investigated for Versace's fashion and design source especially focusing on those elements that inspired him. Versace was born in the southern area of Italy in 1946. Ever since his childhood, he had a lot of experience with clothes because his mother was a dressmaker. His first collection was made in 1978, and Versace became one of the most famous fashion designers in the world within 20 years. He used a wide range of design sources such as history, culture, and art and created his design world with it. He focused on four important epochs. They were classicism, Byzantium, the eighteenth century centering on Baroque, and the 1920s and 1930s centering on Madeleine Vionnet and Madame Gres. Among cultural elements, costume design for ballet and opera and rock 'n' roll music inspired him greatly. Also, Pop art and various paintings such as Chagall's and Delaunay's had a huge effect on Versace. With these elements, he created a bold and unique coordination of style by mixing & matching history, genre, material, and style into his design. Thus he completed an extraordinary and original fashion style by emphasizing on decorative and glamorous points and changing a way of thinking.

Development of 3D Digital Fashion Design Using the Characteristics of the Flower and Bird Paintings in Korean Folk Paintings (한국 민화 화조화의 특성을 활용한 3D 디지털 패션 디자인)

  • Kyung-Hee Sul;Younhee Lee
    • Journal of the Korea Fashion and Costume Design Association
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    • v.25 no.1
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    • pp.15-31
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    • 2023
  • This study aimed to propose a fashion design development method using the external and internal characteristics of the flower and bird paintings in traditional Korean folk paintings. As a research method, external and internal characteristics of folk paintings were examined through previous studies and literature research, and folk painting patterns were developed into digital textile designs. Five 3D digital fashion designs were proposed using the CLO 3D program. The external characteristics of folk paintings were as follows: simplification and planarization of object representation, diversification of viewpoints, ignorance of perspective and symmetrical enumeration, strong colors and contrast effects, and the simultaneous representation of time. The internal characteristics of folk paintings were as follows: symbolic meaning, the beauty of free humor, modest aesthetics, complexity of reality and fantasy, and desire of shamanism. The results are as follows. Firstly, the flower and bird painting was a decorative painting style that emphasized decorative beauty and was suitable for developing fashion designs with Korean originality because of the symbolic and internal meanings. Simple layouts and bold free-spirited representations were effective ways to fill the screen with objects and gave the pattern a decorative effect. Secondly, developing a virtual clothing prototype based on digital design method using the external and internal characteristics of folk paintings and producing realistic fashion designs suggest the integrated use of science and technology, embodying modern fashion through the combination of digital fashion content and traditional cultural content. Thirdly, as a result of the development of 3D digital fashion designs, an eco-friendly and sustainable fashion design methods with virtual clothing can suggest a design development method that saves time and cost in the fashion design process while considering the environment.

The Comparison of Susceptibility Changes in 1.5T and3.0T MRIs due to TE Change in Functional MRI (뇌 기능영상에서의 TE값의 변화에 따른 1.5T와 3.0T MRI의 자화율 변화 비교)

  • Kim, Tae;Choe, Bo-Young;Kim, Euy-Neyng;Suh, Tae-Suk;Lee, Heung-Kyu;Shinn, Kyung-Sub
    • Investigative Magnetic Resonance Imaging
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    • v.3 no.2
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    • pp.154-158
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    • 1999
  • Purpose : The purpose of this study was to find the optimum TE value for enhancing $T_2^{*}$ weighting effect and minimizing the SNR degradation and to compare the BOLD effects according to the changes of TE in 1.5T and 3.0T MRI systems. Materials and Methods : Healthy normal volunteers (eight males and two females with 24-38 years old) participated in this study. Each volunteer was asked to perform a simple finger-tapping task (sequential opposition of thumb to each of the other four fingers) with right hand with a mean frequency of about 2Hz. The stimulus was initially off for 3 images and was then alternatively switched on and off for 2 cycles of 6 images. Images were acquired on the 1.5T and 3.0T MRI with the FLASH (fast low angle shot) pulse sequence (TR : 100ms, FA : $20^{\circ}$, FOV : 230mm) that was used with 26, 36, 46, 56, 66, 76ms of TE times in 1.5T and 16, 26, 36, 46, 56, 66ms of TE in 3.0T MRI system. After the completion of scan, MR images were transferred into a PC and processed with a home-made analysis program based on the correlation coefficient method with the threshold value of 0.45. To search for the optimum TE value in fMRI, the difference between the activation and the rest by the susceptibility change for each TE was used in 1.5T and 3.0T respectively. In addition, the functional $T_2^{*}$ map was calculated to quantify susceptibility change. Results : The calculated optimum TE for fMRI was $61.89{\pm}2.68$ at 1.5T and $47.64{\pm}13.34$ at 3.0T. The maximum percentage of signal intensity change due to the susceptibility effect inactivation region was 3.36% at TE 66ms in 1.5T 10.05% at TE 46ms in 3.0T, respectively. The signal intensity change of 3.0T was about 3 times bigger than of 1.5T. The calculated optimum TE value was consistent with TE values which were obtained from the maximum signal change for each TE. Conclusion : In this study, the 3.0T MRI was clearly more sensitive, about three times bigger than the 1.5T in detecting the susceptibility due to the deoxyhemoglobin level change in the functional MR imaging. So the 3.0T fMRI I ore useful than 1.5T.

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SPM을 이용한 남여별 ADHD 환자 뇌 SPECT 영상의 분석

  • 박성옥;신동호;권수일;조철우;윤석남;오은영
    • Proceedings of the Korean Society of Medical Physics Conference
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    • 2003.09a
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    • pp.43-43
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    • 2003
  • 목적 : 남, 여 ADHD 환자에서 뇌 혈류상태의 차이점을 알아보기 위하여, 다른 정신과적 질환이 없는 ADHD 환자의 SPECT 뇌혈류 영상에 대하여 SPM을 통한 뇌 혈류상태의 차이점을 비교분석하였다. 대상 및 방법 : 남자 ADHD 환자군 51 명 (4-11세, 평균 9.0세)과 정상군 8명(6-17세, 평균, 9.6세) 그리고, 여자 ADHD 환자군 13명(6-12세 평균 9.0세)과 정상군 4 명(6-12세 평균 9.0세)의 SPECT영상을 비교분석하였다. 방사성의약품 $^{99m}$ Tc-ECD 0.33mCi/kg을 환자의 정맥내에 주사하고 30분후 잠을 재운상태에서 Multi SPECT3 camera를 이용하여 영상을 기록하였다. Matlab을 이용한 SPM program에서 남여별 ADHD환자의 뇌혈류지도 영상을 비교하였으며, BOLD(blood oxygenation level dependent effect) data plotting을 이용하여 혈류증가율과 감소율을 분석하였다. 결과 : 1) 남자 ADHD환자군의 혈류증가부위의 경우, P<0.02 에서 대상회전 (cingulate gyrus)이 나타나 P<0.05까지 한 부위에서만 나타났으며, 정상군에 비하여 15.61%의 혈류증가율을 나타내었다. 혈류감소부위로는 P<0.004에서 좌측 대뇌 도이랑 (insula gyrus), P<0.005에서 우측 대뇌 측두엽이랑, P<0.007에서는 우측 대뇌 전두엽아래이랑에서 각각 감소되었으며 P<0.01에서는 좌측 대뇌 전두엽 아래이랑에서도 나타났다. ADHD 환자군은 정상군에 비하여 각각의 클러스터에서 평균 14.97-15.28%의 혈류 감소율을 보였다. 뇌 혈류의 증가율과 감소율은 유의 수준변화에 영향을 받지 않았다. 2) 여자 ADHD환자의 혈류증가의 경우 P<0.003에서 소뇌 후엽 중앙부위, P<0.005에서는 좌측 대뇌 변연엽, P<0.009에서는 좌측 대뇌 측두엽 그리고 P<0.02에서는 소뇌 후엽을 비롯하여 9개부분에서 혈류증가 클러스터가 나타났으며, ADHD환자군은 정상군에 비하여 24.68-31.25%의 혈류증가율을 나타내었다. 혈류감소를 나타낸 부위로는 P<0.001에서 좌측 대뇌의 렌즈핵(lentiform nucleus), P<0.003에서 우측 대뇌의 렌즈핵 그리고 P<0.005에서 P<0.01까지 좌측 대뇌 측두엽중심에서 나타났다. 각각의 클러스터에서 평균 혈류감소율은 30.57-30.84%이었다. 결론 : 남여ADHD 환자의 혈류 증가와 감소부위는 서로 일치하지 않았으며 여자의 경우 혈류 증가와 감소율이 남자보다 더 크게 나타나, ADHD환자의 SPECT를 이용한 분석에서 남여환자를 동시에 분석하는 것 보다는 남여환자를 구분하여 실시하는 것이 더욱 정확한 진단정보를 제공할 수 있다고 판단된다.

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