• Title/Summary/Keyword: advancement of knowledge

Search Result 183, Processing Time 0.023 seconds

Reconstruction of Philtral Column with Overlapping of Orbicularis Oris Muscle Flap in Secondary Cleft Lip Nose Deformity (이차성 구순열 환자에서 상구순 구륜근 피판중첩을 이용한 인중주의 재건)

  • Kwon, Seok Min;Park, Jun;Yang, Won Yong;Yoo, Young Cheun;Kang, Sang Yoon
    • Archives of Plastic Surgery
    • /
    • v.35 no.5
    • /
    • pp.574-580
    • /
    • 2008
  • Purpose: Philtral deformity is a stigma of secondary cleft lip nose. It occurs from the false arrangement of orbicularis oris muscle and the scar of previous operation. Various methods have been used to correct this deformity. We successfully corrected philtral deformity using overlapping of orbicularis oris muscle flap. Methods: From November 2000 to August 2007, we performed 39 cases of correction of philtral deformity in secondary cleft lip nose with overlapping of orbicularis oris muscle flap. Their age ranged from 5 to 53 years old. Existing scar tissue of previous operation was deepithelialized and preserved as scar flap. Lateral orbicularis oris muscle flap was elevated, advanced and overlapped upon medial muscle flap after dissection of orbicularis oris muscle of both sides. Reconstruction of philtral column was made from overlapping area by fixation of end part of lateral muscle flap to the point between philtral dimple and column. The degree of muscle flap advancement was decided by correction state of lateral muscle bulging. Correction of nostril floor depression or whistle deformity was also performed with preserved scar flap, if necessary. Results: Realignments of orbicularis oris muscle were possible in the majority of the patients and final results of philtral reconstruction were satisfactory mostly. Correction of nostril floor depression and whistle deformity was also achieved. Additional correction was performed later to 4 patients in whom insufficient reconstruction was noted. No significant complication was observed. Conclusion: More natural and symmetric philtrum was acquired with overlapping of orbicularis oris muscle flap. To the authors' knowledge, it is an easy and effective method for correction of philtral deformity through anatomical rearrangement of distorted orbicularis oris muscle with relatively simple procedure.

A Study on Relations between Deterioration of Physical Functions due to Aging and Bathroom Design Guidelines for the Elderly (노화로 인한 신체적 기능 쇠퇴와 고령자를 위한 욕실 디자인 가이드라인 관계 연구)

  • Lee, Yeun-Sook;Lim, Hyun-Jin;Lee, Ji-Hye;Ahn, Chang-Houn
    • Korean Institute of Interior Design Journal
    • /
    • v.22 no.5
    • /
    • pp.188-198
    • /
    • 2013
  • Advancement toward aging society has presented the importance of house planning in consideration of the elderly, increasing the necessity of such planning. Therefore the importance of indoor design guideline for elderly houses has been stressed and the understanding of the aging in regard to this trend will create more mature spaces. In line with this trend the purpose of this study is to study the medical factors related with bathroom interior design guidelines of the existing elderly houses from the viewpoint of deteriorating physical functions due to aging process. In order to research the deterioration of physical functions due to aging literatures of medical and exercise physiology were used and concerning the existing bathroom design guidelines for the aged people, the guideline items of behavior facilitation, physiological maintenance and perceptual maintenance aspects out of Murtha & Lee's user benefit criteria(1976) related with physical functions were selected to research in relation with the knowledge about the deterioration phenomena of physical functions. Physical aging and deterioration aspects were classified from the viewpoint of musculoskeletal disorder, cardiovascular disorder, respiratory disorder, gastronomy disorder, urology disorder, somatosensory disorder, endocrine disorder, immune disorder, nervous disorder and skin diseases and these were utilized in interpreting total 100 items of bathroom design guideline. Because bathroom is the space where many physical movements are done, it had the closest relationship with the deterioration of musculoskeletal health in general and as bathroom is the space where people use water and feel the difference in temperature and moisture more than other spaces, deterioration of skin and somatosensory health had the next closest relationship. The result of this study revealed that regarding the deterioration of physical functions of the elderly people in aspect of their perceptibility as designers will design creatively and sincerely based on its relationship with nervous system in future, the result of this study will be used to develop better spatial designs efficiently to meet for the aging society.

Wireless Paging System Model on Ubiquitous Computing Environment

  • Han, Kook-Hee;Kwon, Young-Jik
    • Proceedings of the Korea Society of Information Technology Applications Conference
    • /
    • 2005.11a
    • /
    • pp.55-60
    • /
    • 2005
  • Ubiquitous computing environment means the computing environment that has taken its position so closely with the ordinary living so much like air or water. In building up the U-Korea, one of the important issues is the social issue from the drastic increase of senior population. The contemporary society has its distinct trend in increase of senior household following the nuclear family orientation, increase of working parents with the advancement of women in society, unable to support seniors for long distance or short distance of business trip and other reasons that the need of senior welfare has been ever more felt. Accordingly, the Ministry of Government Affairs and Home Administration has developed the wireless paging system to make prompt response system for 119 Rescue when the single senior is encountered with emergency situation that is has been widely provided for the socially neglected people such as single senior, the disabled persons and others. Currently, the wireless paging system is operated as the sub-system for emergency rescue information system, but due to the lack of reliability of product, problems of terminal portable transmitter, receptor and others, rejection of beneficiary and lack of knowledge in use, insufficient management and supervision of managing officers, the efficiency has been declined that there is a need of development for the system. Therefore, this study proposes the context aware information structure of the subject of ubiquitous wireless paging system required for the development of the wireless paging system model of ubiquitous environment that improved the problems of currently operated wireless paging system.

  • PDF

Semen evaluation: methodological advancements in sperm quality-specific fertility assessment - A review

  • Tanga, Bereket Molla;Qamar, Ahmad Yar;Raza, Sanan;Bang, Seonggyu;Fang, Xun;Yoon, Kiyoung;Cho, Jongki
    • Animal Bioscience
    • /
    • v.34 no.8
    • /
    • pp.1253-1270
    • /
    • 2021
  • Assessment of male fertility is based on the evaluation of sperm. Semen evaluation measures various sperm quality parameters as fertility indicators. However, semen evaluation has limitations, and it requires the advancement and application of strict quality control methods to interpret the results. This article reviews the recent advances in evaluating various sperm-specific quality characteristics and methodologies, with the help of different assays to assess sperm-fertility status. Sperm evaluation methods that include conventional microscopic methods, computer-assisted sperm analyzers (CASA), and flow cytometric analysis, provide precise information related to sperm morphology and function. Moreover, profiling fertility-related biomarkers in sperm or seminal plasma can be helpful in predicting fertility. Identification of different sperm proteins and diagnosis of DNA damage has positively contributed to the existing pool of knowledge about sperm physiology and molecular anomalies associated with different infertility issues in males. Advances in methods and sperm-specific evaluation has subsequently resulted in a better understanding of sperm biology that has improved the diagnosis and clinical management of male factor infertility. Accurate sperm evaluation is of paramount importance in the application of artificial insemination and assisted reproductive technology. However, no single test can precisely determine fertility; the selection of an appropriate test or a set of tests and parameters is required to accurately determine the fertility of specific animal species. Therefore, a need to further calibrate the CASA and advance the gene expression tests is recommended for faster and field-level applications.

A Study on Seokgok Lee Gyujoon's Posangkimun(浦上奇聞) and His Perception of the Occident (석곡(石谷) 이규준(李奎晙)의 "포상기문(浦上奇聞)"과 석곡(石谷)의 대서양(對西洋) 인식(認識))

  • Park, Sang-Young;Han, Chang-Hyun;Ahn, Sang-Young;Lee, Jun-Kyu;Kwon, Oh-Min
    • Korean Journal of Oriental Medicine
    • /
    • v.16 no.2
    • /
    • pp.65-73
    • /
    • 2010
  • This study is to discuss the content of Posangkimun on the whole and to report the understanding of Seokgok Lee Gyujoon on western civilization. Through the overall analysis of Posangkimun, it is found the following facts: 1. Posangkimun aroused interest of academic circles as it covered theories of western civilization. Most of the introduction to western civilization contained in the book is related to astronomy and geography. Seokgok criticized all the western theories on revolution of the earth, astronomy, continents and oceans on the ground that these theories were not congruous with the teaching of the Oriental sages. 2. Seokgok found the reasons why the West had led the East from 'nationalism' of the West. The nationalism mentioned here were more similar to 'democracy' in modern sense, or rather 'democratism'. What is specially noteworthy is that he did not find the reasons of western advancement from the spiritual issues not from the machine civilization. In this way, Seokgok could avoid the fallacy of throwing away traditional ideas to concentrate in western machine civilization. 3. The content of Posangkimun shows that Seokgok was a person with a very conservative view. Notwithstanding his inclination, he had good knowledge about western theories, most of which were gathered from newspapers and magazines at that time. It means that newspapers and magazines should be treated with more importance when studying Korean intellectuals in late Joseon period or during the time of Japanese forced occupation.

한국상사중재의 국제화와 경쟁력

  • Jo, Jeong-Gon
    • Journal of Arbitration Studies
    • /
    • v.7 no.1
    • /
    • pp.411-446
    • /
    • 1997
  • This paper reports the results of an experimental companson of the winning rates in arbitral awards between the Korean Commercial Arbitration Board and the Japan Commercial Arbitration Association, and analyzed the comparative advantages of KCAB in international arbitration compared with ICC. There are so many factors to analyze the level of internationalizaton and competitiveness in the arbitration. From the recent lituratures, arbitration experts reported and debated tremendous elements which is vital to have a competition in the international arbitration market. Arbitration factors such as fairness, reliability, awareness, extension, enforcement, inexpensiveness, closed and expedited proceedings, arbitrators, expert knowledge, service, arbitral award, etc. are very important to appraise the level of the globalization and competitiveness of arbitration organizations Using these factors, I appraised current level of the globalization and competitiveness of the Korean Commercial Arbitration Board, unique arbitration organization in South Korea. Next, we are able to compare the level of fairness using the concept of 'winning rate' All over the world, only several arbitration organizations published and opened their own arbitral awards even In anonymity. The Japanese arbitration institutions published it regularly as well as the Korean When compared with these two institutions' "winning rates". there is similiar tendency in favor of domestic corporations That is to say, the winning rates in domestic arbitration cases are greater than those in international arbitration cases. This embarks an implication of unequality, a part of unfairness, in these two countries' arbitration. Finally, an analysis was conducted between the statistics of KCAB and ICC, especially to the focus on the number of arbitration cases, arbitration tribunals, arbitration places, parties' nationalities. the types of contents, the amount of arbitration, arbitration costs. There are two meanings to keep in mind for advancement of Korean arbitration. One is to establish new strategy specializing in small amount arbitration less than US$200,000. The other is to rearrange the panel of arbitration, especially in increasing field of arbitration cases such as the disputes of license, technology transfer, patent, etc.

  • PDF

Dynamic vulnerability assessment and damage prediction of RC columns subjected to severe impulsive loading

  • Abedini, Masoud;Zhang, Chunwei
    • Structural Engineering and Mechanics
    • /
    • v.77 no.4
    • /
    • pp.441-461
    • /
    • 2021
  • Reinforced concrete (RC) columns are crucial in building structures and they are of higher vulnerability to terrorist threat than any other structural elements. Thus it is of great interest and necessity to achieve a comprehensive understanding of the possible responses of RC columns when exposed to high intensive blast loads. The primary objective of this study is to derive analytical formulas to assess vulnerability of RC columns using an advanced numerical modelling approach. This investigation is necessary as the effect of blast loads would be minimal to the RC structure if the explosive charge is located at the safe standoff distance from the main columns in the building and therefore minimizes the chance of disastrous collapse of the RC columns. In the current research, finite element model is developed for RC columns using LS-DYNA program that includes a comprehensive discussion of the material models, element formulation, boundary condition and loading methods. Numerical model is validated to aid in the study of RC column testing against the explosion field test results. Residual capacity of RC column is selected as damage criteria. Intensive investigations using Arbitrary Lagrangian Eulerian (ALE) methodology are then implemented to evaluate the influence of scaled distance, column dimension, concrete and steel reinforcement properties and axial load index on the vulnerability of RC columns. The generated empirical formulae can be used by the designers to predict a damage degree of new column design when consider explosive loads. With an extensive knowledge on the vulnerability assessment of RC structures under blast explosion, advancement to the convention design of structural elements can be achieved to improve the column survivability, while reducing the lethality of explosive attack and in turn providing a safer environment for the public.

ANALYSIS OF ASTRONOMY CONTENT IN NATIONAL SCIENCE CURRICULUM OF KOREA (한국 과학과 교육과정 내 천문학 내용 분석)

  • HYUNJIN SHIM;WOOJIN KWON;DOHYEONG KIM;CHAN-GYUNG PARK;JUNGJOO SOHN;IN-OK SONG;SUNG-HO AN;SUYEON OH;JEONG AE LEE;BEOMDU LIM
    • Publications of The Korean Astronomical Society
    • /
    • v.38 no.3
    • /
    • pp.125-145
    • /
    • 2023
  • This study investigates the integration of astronomy-related topics in the Korean national science curricula spanning from 1945 to 2023. We analyze the placement and extent of astronomy content across different school levels. Astronomy contents in the science curricula have changed in response to social needs (e.g., practical knowledge required for agriculture and fishery) and advancement in astronomical research (e.g., the discovery of exoplanets and the suggestion of new cosmological parameters). Contents addressing the motions of celestial objects and stellar physical properties have remained relatively consistent. In the latest 2022 revised national curriculum, scheduled for implementation in 2024, several elements, such as coordinate systems, have been removed, while the inquiry activities using digital tools are emphasized. The incorporation of the cosmic perspectives in the national curriculum, as well as astronomy education within the context of education for sustainable development, remains limited even in the most recent curriculum. For future life revisions, the active participation of researchers is needed to reflect the latest astronomical research progress and scientific characteristics in the field of astronomy.

STP Development for Rejuvenation of Declining Industrial City: Kitakyushu, Japan

  • Cha, Sang-Ryong;Miyakawa, Yasuo
    • World Technopolis Review
    • /
    • v.1 no.1
    • /
    • pp.56-64
    • /
    • 2012
  • This paper provides a case study to explore the Kitakyushu case as a good referential example on STP development for rejuvenation of declining industrial city. The major data for the case, basically, has been sourced from some materials published by the municipality of Kitakyushu City, the website of the Kitakyushu Science and Research Park (KSRP) etc. The City of Kitakyushu has promoted the KSRP development to overcome industrial decline and stimulate city renaissance as a new industrial city. The core of the development was to develop a high-level education and research environment by gathering several HEIs into one campus. Based on the environment, the Kitakyushu Foundation for the Advancement of Industry and Science and Technology (FAIS) played the critical role as a coupler to make various networks and boost industry-academiaadministration innovation. The KSRP, and then, has been designated as a project area of some cluster projects initiated by the central government. It means that local projects can be synchronized, synergized and synthesized with national projects in the KSRP. In addition, through a series of the environmental approach from the Kitakyushu Eco-town Project to the Low Carbon Society Project, the development of the KSRP is being extended into the region. In the Kitakyushu case, networking is the essence of the KSRP development from the planning stage. First of all, the plan put emphasis on networking of academia for the knowledge creation based on competitive collaboration that is expected as the mainspring of rejuvenating declining industrial area and making a new industrial city that the plan aimed. Then, the roles of two organizations are very important for networking, especially networking of networks: the Campus Management Committee as an interface and the FAIS as a coupler. STP development without some strategic considerations for networking as the way of interaction among its participants cannot be a tool to promote innovation and rejuvenate a declining industrial area. The Kitakyushu case mentioned above explains the matter clearly.

Clinical and preclinical tolerance protocols for vascularized composite allograft transplantation

  • Yang, Jerry Huanda;Johnson, Ariel C.;Colakoglu, Salih;Huang, Christene A.;Mathes, David Woodbridge
    • Archives of Plastic Surgery
    • /
    • v.48 no.6
    • /
    • pp.703-713
    • /
    • 2021
  • The field of vascularized composite allografts (VCAs) has undergone significant advancement in recent decades, and VCAs are increasingly common and accepted in the clinical setting, bringing hope of functional recovery to patients with debilitating injuries. A major obstacle facing the widespread application of VCAs is the side effect profile associated with the current immunosuppressive regimen, which can cause a wide array of complications such as infection, malignancy, and even death. Significant concerns remain regarding whether the treatment outweighs the risk. The potential solution to this dilemma would be achieving VCA tolerance, which would allow recipients to receive allografts without significant immunosuppression and its sequelae. Promising tolerance protocols are being studied in kidney transplantation; four major trials have attempted to withdraw immunosuppressive treatment with various successes. The common theme in all four trials is the use of radiation treatment and donor cell transplantation. The knowledge gained from these trials can provide valuable insight into the development of a VCA tolerance protocol. Despite similarities, VCAs present additional barriers compared to kidney allografts regarding tolerance induction. VCA donors are likely to be deceased, which limits the time for significant pre-conditioning. VCA donors are also more likely to be human leukocyte antigen-mismatched, which means that tolerance must be induced across major immunological barriers. This review also explores adjunct therapies studied in large animal models that could be the missing element in establishing a safe and stable tolerance induction method.