• Title/Summary/Keyword: $I_2$-convergence

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Study of surgical anatomy of portal vein of liver segments by cast method and its clinical implications

  • Shrikantaiah, Vidya C.;Basappa, Manjaunatha;Hazrika, Sangita;Ravindranath, Roopa
    • Anatomy and Cell Biology
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    • v.51 no.4
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    • pp.232-235
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    • 2018
  • Portal vein provides about three-fourths of liver's blood supply. Portal vein is formed behind the neck of pancreas, at the level of the second lumbar vertebra and formed from the convergence of superior mesenteric and splenic veins. The purpose of this study is to review the normal distribution and variation, morphometry of portal vein and its branches for their implication in liver surgery and preoperative portal vein embolization. It is also helpful for radiologists while performing radiological procedures. A total of fresh 40 livers with intact splenic and superior mesenteric vein were collected from the mortuary of Forensic Department, JSS Medical College and Mysuru Medical College. The silicone gel was injected into the portal vein and different segments were identified and portal vein variants were noted. The morphometry of portal vein was measured by using digital sliding calipers. The different types of portal vein segmental variants were observed. The present study showed predominant type I in 90% cases, type II 7.5% cases, and type III 2.5% cases. Mean and standard deviation (SD) of length of right portal vein among males and females were $2.096{\pm}0.602cm$ and $1.706{\pm}0.297cm$, respectively. Mean and SD of length of left portal vein among males and females were $3.450{\pm}0.661cm$ and $3.075{\pm}0.632cm$, respectively. The difference in the Mean among the males and females with respect to length of right portal vein and left portal vein was found to be statistically significant (P=0.010). Prior knowledge of variations regarding the formation, termination and tributaries of portal vein are very helpful and important for surgeons to perform liver surgeries like liver transplantation, segmentectomy and for Interventional Radiologists.

The Extraction Process of Durative Persuasive System Design Characteristics for Healthcare-related Mobile Applications

  • Zhang, Chao;Wan, Lili
    • International journal of advanced smart convergence
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    • v.8 no.2
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    • pp.18-29
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    • 2019
  • In the field of Human-Computer Interaction design, persuasive design has gradually been applied to the system development and design process, especially for mobile application design. However, most mobile applications have hitherto a very short using lifecycle. Especially, design features with long-term persuasive effectiveness remain to be further researched and developed. In this study, we focused on investigating and identifying the durative persuasive design characteristics through a data mining process and evaluating the durative effectiveness through a long-term observation process. Total five hundred healthcare-related mobile applications were selected from Apple iTunes Store and a mixed method was conducted to extract the most common persuasive design characteristics. Based on the results of extraction, a representative healthcare-related mobile application was selected as experimental subject. Total one hundred and twenty participants were observed during a six-months experiment and the monitoring data of app usage of all participants was collected once a week. According to the evaluation model for behavior change identification process, participants with habit formation features were proved to have a significant long-term perception level for ten persuasive design characteristics. Further interview research was performed to investigate the participant's long-term perceptions on those characteristics for the purpose of identifying the durative persuasions. The results indicated that a long-term durative effectiveness can be observed and healthcare-related apps designed with those characteristics could have durative effectiveness. This study may contribute to the improvement of future mobile application designs in user experience and durative persuasion, as well as bringing future benefits for both mobile application developers and users.

A Study on Causal Relationships among Cultural Tendency, Social Maturity, Community Spirit and Multicultural Perception of Nursing Students (간호대학생의 문화성향, 사회성숙도, 공동체의식 및 다문화인식의 인과관계)

  • Choi, Dongwon
    • Journal of Digital Convergence
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    • v.16 no.12
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    • pp.395-405
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    • 2018
  • The purpose of this study was to develop a structural equation model on the relationships among cultural tendency, social maturity, community spirit and multicultural perception of nursing students. The survey was performed on 395 nursing students in two universities. Data were collected using a structured questionnaires and analyzed with SPSS 22.0 and Amos 22.0 program. Individualism, social maturity and community spirit showed a direct effect on multicultural perception. And community spirit and Social maturity work as complete mediators in the relationship between collectivism and multicultural perception. These variables explained 59.2% of acts towards multicultural perception. The results of this study suggest that development of programs enhancing proper personalities like community spirit for nursing students.

Attitude and Confidence on Patient Safety of Undergraduate Healthcare profession students (보건의료전공 대학생들의 환자안전에 대한 태도와 수행자신감)

  • Wie, Seoung-Uk
    • Journal of Digital Convergence
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    • v.17 no.2
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    • pp.265-273
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    • 2019
  • The Purpose of this study was to investigate the attitude and confidence of patient safety in undergraduate healthcare professions students. The subjects consisted of 145 grade 3,4 students who have had clinical practice in nursing and emergency medical technician schools in a J province from June 1st to 30th in 2016. Data were analyzed with SPSS 21.0 using descriptive statistics. The results of the study showed that the attitude of nursing students were more positive, but there was no difference in patient safety self-confidence and patient safety education experience, and the students who had experienced medical errors saw positive attitude and self-confidence. Based on the results of this study, I propose case-based multidisciplinary contents development to nurture emergency healthcare professions

Seeking application of Kye Rak Choi's verse to early childhood education (최계락 동시의 유아교육에의 적용 방안 모색)

  • Kim, Dae-wook
    • The Journal of the Convergence on Culture Technology
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    • v.5 no.2
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    • pp.225-231
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    • 2019
  • This study was carried out to find a way to apply Kye Rak Choi, a representative writer of romanticism, to the early childhood education. For the study, the analysis was performed on 95. First, Kye Rak Choi study related to Kye Rak Choi and Kye Rak Choi work were examined. Next, I examined the implementation plan of simultaneous class which is being used in early childhood education and searched how to apply Kye Rak Choi work. The subject of the work was analyzed in order to apply Kye Rak Choi 's concurrent to early childhood education. There were many works utilizing the four seasons and nature, and these works were suitable for use in early childhood education. There is a way to apply Kye Rak Choi's work to early childhood education, to utilize sheer, to write a reply, to share stories by context. Kye Rak Choi had written many works emphasizing lyricism, and these works can be a good medium to connect with the child's sensitivity.

A study on action cam user experience design for leisure activities (레저활동을 위한 액션캠 사용자 경험 디자인 연구)

  • Lee, Yong-Joon;Kim, Seung-In
    • Journal of Digital Convergence
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    • v.19 no.2
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    • pp.373-378
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    • 2021
  • The study is a user experience design study on the function of action cams used for leisure activities that have been on the rise recently. Along with the video platforms that are developing in a user-friendly way, the size of the action cam market is also growing. However, there is a lack of research on the quality of a function that enhances the user experience. Thus, this study classified action cam functions according to user experience elements by using Kano Model's analysis method and in-depth interview, and analyzed how the quality of action cam functions affects the user experience by conducting a satisfaction survey by function. The results of the study have shown which functions should be improved first and which functions should be continuously researched and invested. I hope this study will contribute useful information to developing user-centered action cams.

High-Performance Compton SPECT Using Both Photoelectric and Compton Scattering Events

  • Lee, Taewoong;Kim, Younghak;Lee, Wonho
    • Journal of the Korean Physical Society
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    • v.73 no.9
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    • pp.1393-1398
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    • 2018
  • In conventional single-photon emission computed tomography (SPECT), only the photoelectric events in the detectors are used for image reconstruction. However, if the $^{131}I$ isotope, which emits high-energy radiations (364, 637, and 723 keV), is used in nuclear medicine, both photoelectric and Compton scattering events can be used for image reconstruction. The purpose of our work is to perform simulations for Compton SPECT by using the Geant4 application for tomographic emission (GATE). The performance of Compton SPECT is evaluated and compared with that of conventional SPECT. The Compton SPECT unit has an area of $12cm{\times}12cm$ with four gantry heads. Each head is composed of a 2-cm tungsten collimator and a $40{\times}40$ array of CdZnTe (CZT) crystals with a $3{\times}3mm^2$ area and a 6-mm thickness. Compton SPECT can use not only the photoelectric effect but also the Compton scattering effect for image reconstruction. The correct sequential order of the interactions used for image reconstruction is determined using the angular resolution measurement (ARM) method and the energies deposited in each detector. In all the results of simulations using spherical volume sources of various diameters, the reconstructed images of Compton SPECT show higher signal-to-noise ratios (SNRs) without degradation of the image resolution when compared to those of conventional SPECT because the effective count for image reconstruction is higher. For a Derenzo-like phantom, the reconstructed images for different modalities are compared by visual inspection and by using their projected histograms in the X-direction of the reconstructed images.

A study of the Patterns of Typology of Rhetorical of citations in International Students Papers (외국인 유학생의 보고서 쓰기에 나타나는 인용의 수사학적 유형 양상)

  • Kwak, Soo Jin
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.2
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    • pp.251-257
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    • 2022
  • In this study, I analyzed what rhetorical citation type students most frequently used when reinforcing logic of their opinions and arguments in research papers, and compared these rhetorical types between higher and lower Korean proficiency levels of students. These 30 student papers included the following rhetorical citation types: statistics, attribution, exemplification, statement of use, establishing connections between sources, and comparing one's own findings or interpretations with other sources. Statistics was the most frequently used rhetorical citation type. In addition, the group with the highest level of Korean proficiency used citations about 8 to 11 times in their papers, and incorporated a variety of citation types including attribution, statistics, exemplification, and statement of use. Lower level students used significantly less citations and citation types. Therefore, it is necessary to raise awareness that "citations" is an important strategy to reinforce one's own logic, teach various types of citations as important research writing strategies, and prepare a more citation-focused academic writing curriculum.

Investigation into Longitudinal Writing Development Using Linear Mixed Effects Model (선형 혼합 모형을 통해 살펴본 쓰기 능력의 장기적인 발전 양상 탐색)

  • Lee, Young-Ju
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.2
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    • pp.315-319
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    • 2022
  • This study investigates longitudinal writing development in terms of syntactic complexity using linear mixed effects (LME) model. This study employs essays written by four case study participants. Participants voluntarily wrote essays outside of the classroom and submitted the first and second drafts, after reflecting on the automated writing evaluation feedback (i.e., Criterion) every month over one year. A total of 48 first drafts were analyzed and syntactic complexity features were selected from Syntactic Complexity Analyzer. Results of LME showed that there was a significant positive linear relationship between time and mean length of T-unit and also between time and the ratio of dependent clauses to independent clauses, indicating that case study participants wrote longer T-units and also a higher proportion of dependent clauses over one year.

A study on the systematic operation of the innovative patent strategy framework and the application plan of patent big data to secure competitive advantage (혁신특허전략 프레임워크의 체계적 운영 및 경쟁우위확보를 위한 특허빅테이터 활용방안에 관한 연구)

  • Kim, Hyun Ah;Cha, Wan Kyu
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.2
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    • pp.351-357
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    • 2021
  • At the time when interest in the use of big data is rising in the face of the technological paradigm shift of the 4th industrial revolution, interest in the use of patented big data is increasing, especially as the proportion of intangible assets of companies increases. In addition to quantitative information, patent data contains various information such as unstructured text such as title, abstract, claim, citation and citation relations, drawings, and technology classification. It is judged that the use of treatment is important. Therefore, in this study, in order to systematically operate the innovative patent strategy framework and to secure a competitive advantage by strengthening the fundamental technological competitiveness of the company, we propose a method of using patent big data centering on the case of Company A, and verify its validity. I would like to suggest some implications. Through this, it is intended to raise awareness of the use of patent big data, and to suggest ways to use patent big data in connection with the company's company-wide strategy, business strategy, and functional strategy.