• 제목/요약/키워드: web materials

검색결과 750건 처리시간 0.032초

표준도 기반의 3차원 지하구조물 구축 방안 및 도면가공 툴 프로그램 개발 (Development of Drawing Processing Tool Program and Establishment Strategy of 3D Underground Structures based on Standardized Drawings)

  • 이민규;한상훈;김성수
    • 한국지리정보학회지
    • /
    • 제24권4호
    • /
    • pp.1-25
    • /
    • 2021
  • 정부는 지하안전사고 대응 및 예방을 위해 현행 수작업 기반의 지하공간통합지도 구축 및 갱신체계를 지하구조물을 포함한 지하정보에 대해서 자동화 기반의 3D 지하정보 구축 및 갱신체계로의 전환을 위한 준공도서제출 시스템 구축사업을 진행하고 있다. 하지만 3D 지하구조물 자동화 갱신 시 필요한 표준도면 연구가 미비하여 이에 관한 구체적인 연구가 필요한 실정이다. 본 논문에서는 지하공간통합지도를 구성하는 6종 지하구조물을 대상으로 표준도 기반의 3차원 지하구조물 구축 방안을 제시하여 신속 정확한 도면데이터 작성과 체계적인 3차원 지하구조물 도면데이터 관리가 이루어질 수 있도록 하였다. 또한, 지하정보 실무에 활용 가능한 3D 구축용 가공도면 툴을 개발하여, 일반 CAD 프로그램 사용자들도 쉽게 가공도면을 제작할 수 있도록 하였다. 본 논문에서 도출된 결과물들은 향후 3D 지하구조물 구축을 위한 표준 프레임워크 및 실무적용 지침 수립 시 주요한 참조자료가 될 것으로 기대한다.

무지외반증 치료 동향: 대한족부족관절학회 회원 설문조사 분석 (Current Trends in the Treatment of Hallux Valgus: Analysis of the Korean Foot and Ankle Society (KFAS) Member Survey)

  • 조재호;조병기;박현우;성기선;배서영;2021 대한족부족관절학회 학술위원회
    • 대한족부족관절학회지
    • /
    • 제25권4호
    • /
    • pp.157-164
    • /
    • 2021
  • Purpose: This study aimed to report the current trends in the management of the hallux valgus (HV) deformity over the last few decades through a survey of the Korean Foot and Ankle Society (KFAS) members. Materials and Methods: A web-based questionnaire containing 34 questions was sent to all KFAS members in September 2021. The questions were mainly related to the preferred techniques and clinical experience in correction in patients with an HV deformity. Answers with a prevalence of ≥50% of respondents were considered a tendency. Results: One hundred and nine (19.8%) of the 550 members responded to the survey. The most common symptom for determining surgical treatment was bunion pain (68.8%), and different surgical techniques were selected according to the following radiological parameters: HV angle 30 to 40 degrees and intermetatarsal angle 15 to 20 degrees. The two procedures most preferred by the respondents were distal chevron osteotomy (55.0%), and proximal chevron osteotomy (21.1%). In an average of 71.6% of respondents, Arkin osteotomy was performed simultaneously during HV surgery. HV accompanied by an overriding deformity of the second toe was most often addressed with a combination of second metatarsal osteotomy and soft tissue rebalancing procedure (35.8%). After HV surgery, the recurrence rate of HV deformity was found to be 12.2% on average and the surgeons who had performed minimally invasive surgery (MIS) for HV comprised 34.9% of the total respondents. Conclusion: This study provides updated information on the current trends in the management of the HV deformity in Korea. Both consensus and variation in the approach to patients with HV were identified by this survey study. Although MIS for HV has increased, it appears the consensus for selecting this method has not yet been established.

족관절 인대 손상 치료 동향: 대한족부족관절학회 회원 설문조사 분석 (Current Trends in the Treatment of Ankle Ligament Injuries: Analysis of the Korean Foot and Ankle Society (KFAS) Member Survey)

  • 조병기;조재호;이명진;이준영;배서영;2021 대한족부족관절학회 학술위원회
    • 대한족부족관절학회지
    • /
    • 제26권1호
    • /
    • pp.22-29
    • /
    • 2022
  • Purpose: Despite continuous updates of standard treatment guidelines for acute ankle sprain and chronic ankle instability (CAI), in practice preferred treatment protocols vary widely. Based on a Korean Foot and Ankle Society (KFAS) member survey, this study reports current trends in the management of ankle ligament injuries. Materials and Methods: A web-based questionnaire containing 34 questions was sent to all KFAS members in September 2021. Questions mainly addressed clinical experience and preferences for the diagnosis and treatment of ankle ligament injuries. Answers with a prevalence of ≥50% among respondents were considered to reflect tendencies. Results: Eighty-four of the 550 members (15.3%) responded. Answers that showed a tendency were as follows: commonest additional image study (ultrasound), conservative treatment modality (immobilization, oral medication), frequency of surgical treatment (<5 cases per annum), most important factor when deciding on surgical treatment (activity level, e.g., occupation or sport), and commonest surgical procedure (open ligament repair). Answers that showed a tendency for CAI were as follows: most important symptom (repeated sprain, giving way), radiological factors (talar tilt, osteochondral lesion, anterior talar translation), and patient factors (occupation, sports activities, recurrent instability after surgery, etc.). For decision making regarding surgical treatment and method, the most preferred surgical procedure was the modified Broström procedure, and the most common repair technique was suture anchor technique. The following were considered poor prognostic factors; generalized laxity, failed previous surgery, cavovarus, severe mechanical instability, heavy work, obesity, and dissatisfaction after surgery because of residual pain. Conclusion: This study updates information regarding current trends in the management of ankle ligament injuries in Korea, and reveals consensus opinions and variations in approaches to patients with an acute or chronic injury. The divergence of approaches identified indicates the need for further studies to determine standard guidelines and long-term results.

블룸(B.S. Bloom)의 교육목표에 따른 원예그림동화책과 교육적 효과분석 (The Analysis of Educational Effect of The Horticultural Picture Books Focused on B.S. Bloom's Taxonomy of Educational Objectives)

  • 곽혜란;김선아
    • 한국화예디자인학연구
    • /
    • 제41호
    • /
    • pp.155-169
    • /
    • 2019
  • 본 연구는 블룸의 교육목표에 따른 원예동화책의 교육적 특성과 인식을 분석하는데 목적을 두었다. 이를 위하여 Web에서 식물과 원예활동에 관한 키워드 검색을 통해 수집한 70여 권의 그림동화책 중에서 이들이 담고 있는 내용에 따라 블룸의 교육목표 인지적 영역(cognitive domain), 정의적 영역(emtional domain), 심동적 영역(psychomotor domain)에 해당하는 동화책으로 분류하고 이에 대한 내용적 특성과 원예교육과 관련된 내용을 찾아 분석하여 교육적 효과를 기술하였다. 또한 서울지역 교사들을 대상으로 기초조사(인구학적 변인조사), 원예그림동화책을 활용한 원예교육 방법(교육법)으로 스토리텔링전략, 그림동화책 후 활용, 효과적인 교육 기자재 등을, 원예교육 인식에 대한 조사로서 원예그림동화책 특성, 장점, 단점 및 도움이 되는 점 등을 조사하였다. 설문지 분석결과, 원예그림동화책을 활용한 원예교육을 하였을 때 교사가 인식하는 장점으로는 '원예활동에 관한 아이들의 흥미와 관심을 불러일으키는 것', 그러나 단점으로는 '교육활동시간이 부족하다는 것'이 나왔다. 그림동화책을 이용하였을 때 학교현장에서 도움이 되는 것은 '수업에 도입하기 쉽다'는 점으로 나타났다. 원예그림동화책 교육방법에 대한 인식으로는 스토리텔링 중 가장 효과적인 방법은 '이야기 몰입', 그림책을 읽은 후 효과적인 활동은 '그림 그리기', 원예그림동화책 교육에 가장 효과적인 기자재는 '실물화상기'로 나타났다.

한국고고학 디지털 사전 구축 방안 연구 (Approaches to Creating a Digital Encyclopedia of Korean Archaeology)

  • 이초롱
    • 헤리티지:역사와 과학
    • /
    • 제56권2호
    • /
    • pp.28-45
    • /
    • 2023
  • 디지털 대전환 시대를 맞이했지만 문화유적 조사 결과 생산되는 수많은 고고 디지털 원천 자료를 효율적으로 수집·관리·통합·서비스할 수 있는 활용체계, 즉 고고학술정보의 지능형 통합관리·서비스 플랫폼은 부재한 상황이다. 이와 관련하여, 현재 웹에서 PDF형태로 서비스되고 있는 한국고고학사전의 단순 전산화(Digitization) 문제와 한국고고학사전 발간 및 활용 현황 등을 통해 '한국고고학 디지털 사전 구축' 필요성을 확인하였다. 이에 본 연구에서는 자료 접근의 한계와 어려움에 따른 고고학술 데이터 접근성 제고와 고품질의 지식정보 제공을 중심으로 한 '한국고고학 디지털 사전 구축'의 전반적인 방향을 제안하였다. 2001년부터 발간하고 있는 한국고고학사전의 활용 현황을 분석하여 디지털 전환의 필요성을 확인하였고, 유럽, 미국, 일본 등 국외 고고학 데이터 아카이빙 플랫폼과 국내 전문사전과 관련한 플랫폼 구축 사례를 검토하여 데이터의 체계적인 관리와 보존, 활용에 대해 살펴보았다. 이를 통해 '한국고고학 디지털 사전 구축'을 위한 실행 과제로서 전산화된 기록물에 대한 메타데이터 설계와 생산된 메타데이터 간의 관계 정보를 부여하고 보여주는 시맨틱(semantic, 의미 기반) 데이터로의 확장 등을 제안하였다. 이러한 연구를 바탕으로 향후 고고학술정보의 지능형 통합관리·서비스 플랫폼 구축과 이에 따른 한국고고학에 대한 대중의 관심과 이해를 한 단계 높일 수 있는 발판을 마련하는 계기가 될 것으로 기대한다.

Influence of the root canal filling technique on the success rate of primary endodontic treatments: a systematic review

  • Daniel Feijolo Marconi ;Giovana Siocheta da Silva ;Theodoro Weissheimer;Isadora Ames Silva ;Gabriel Barcelos So;Leonardo Thomasi Jahnke ;Jovito Adiel Skupien ; Marcus Vinicius Reis So ; Ricardo Abreu da Rosa
    • Restorative Dentistry and Endodontics
    • /
    • 제47권4호
    • /
    • pp.40.1-40.18
    • /
    • 2022
  • Objectives: This study aimed to investigate the influence of different obturation techniques compared to cold lateral compaction on the success rate of primary non-surgical endodontic treatments. Materials and Methods: Systematic searches were performed for studies published up to May 17th, 2022 in MEDLINE/PubMed, Cochrane Library, Web of Science, Scopus, EMBASE, and Grey Literature Reports. Randomized clinical trials and nonrandomized (nonrandomized clinical trials, prospective or retrospective) studies that evaluated the success rate of primary non-surgical endodontic treatments obturated with the cold lateral compaction (control) and other obturation techniques were included. The revised Cochrane risk of bias tools for randomized trials (RoB 2) and nonrandomized studies of interventions (ROBINS-I) were used to evaluate the risk of bias. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) tool was used to evaluate the certainty of evidence. Results: Eleven studies (4 randomized clinical trials (RCTs), 4 prospective, and 3 retrospectives) were included. Two RCTs were classified as having some concerns risk of bias and 2 as a low risk of bias. Two nonrandomized studies were classified as having a critical risk of bias and 5 as having a moderate risk of bias. The GRADE analysis demonstrated a very low to moderate certainty of evidence. Conclusions: This systematic review generally evidenced no differences in the success rate of primary non-surgical endodontic treatments when the cold lateral compaction technique and other obturation techniques are performed. Further well-designed studies are still necessary.

Survey on Value Elements Provided by Artificial Intelligence and Their Eligibility for Insurance Coverage With an Emphasis on Patient-Centered Outcomes

  • Hoyol Jhang;So Jin Park;Ah-Ram Sul;Hye Young Jang;Seong Ho Park
    • Korean Journal of Radiology
    • /
    • 제25권5호
    • /
    • pp.414-425
    • /
    • 2024
  • Objective: This study aims to explore the opinions on the insurance coverage of artificial intelligence (AI), as categorized based on the distinct value elements offered by AI, with a specific focus on patient-centered outcomes (PCOs). PCOs are distinguished from traditional clinical outcomes and focus on patient-reported experiences and values such as quality of life, functionality, well-being, physical or emotional status, and convenience. Materials and Methods: We classified the value elements provided by AI into four dimensions: clinical outcomes, economic aspects, organizational aspects, and non-clinical PCOs. The survey comprised three sections: 1) experiences with PCOs in evaluating AI, 2) opinions on the coverage of AI by the National Health Insurance of the Republic of Korea when AI demonstrated benefits across the four value elements, and 3) respondent characteristics. The opinions regarding AI insurance coverage were assessed dichotomously and semi-quantitatively: non-approval (0) vs. approval (on a 1-10 weight scale, with 10 indicating the strongest approval). The survey was conducted from July 4 to 26, 2023, using a web-based method. Responses to PCOs and other value elements were compared. Results: Among 200 respondents, 44 (22%) were patients/patient representatives, 64 (32%) were industry/developers, 60 (30%) were medical practitioners/doctors, and 32 (16%) were government health personnel. The level of experience with PCOs regarding AI was low, with only 7% (14/200) having direct experience and 10% (20/200) having any experience (either direct or indirect). The approval rate for insurance coverage for PCOs was 74% (148/200), significantly lower than the corresponding rates for other value elements (82.5%-93.5%; P ≤ 0.034). The approval strength was significantly lower for PCOs, with a mean weight ± standard deviation of 5.1 ± 3.5, compared to other value elements (P ≤ 0.036). Conclusion: There is currently limited demand for insurance coverage for AI that demonstrates benefits in terms of non-clinical PCOs.

Improving the Performance of Radiologists Using Artificial Intelligence-Based Detection Support Software for Mammography: A Multi-Reader Study

  • Jeong Hoon Lee;Ki Hwan Kim;Eun Hye Lee;Jong Seok Ahn;Jung Kyu Ryu;Young Mi Park;Gi Won Shin;Young Joong Kim;Hye Young Choi
    • Korean Journal of Radiology
    • /
    • 제23권5호
    • /
    • pp.505-516
    • /
    • 2022
  • Objective: To evaluate whether artificial intelligence (AI) for detecting breast cancer on mammography can improve the performance and time efficiency of radiologists reading mammograms. Materials and Methods: A commercial deep learning-based software for mammography was validated using external data collected from 200 patients, 100 each with and without breast cancer (40 with benign lesions and 60 without lesions) from one hospital. Ten readers, including five breast specialist radiologists (BSRs) and five general radiologists (GRs), assessed all mammography images using a seven-point scale to rate the likelihood of malignancy in two sessions, with and without the aid of the AI-based software, and the reading time was automatically recorded using a web-based reporting system. Two reading sessions were conducted with a two-month washout period in between. Differences in the area under the receiver operating characteristic curve (AUROC), sensitivity, specificity, and reading time between reading with and without AI were analyzed, accounting for data clustering by readers when indicated. Results: The AUROC of the AI alone, BSR (average across five readers), and GR (average across five readers) groups was 0.915 (95% confidence interval, 0.876-0.954), 0.813 (0.756-0.870), and 0.684 (0.616-0.752), respectively. With AI assistance, the AUROC significantly increased to 0.884 (0.840-0.928) and 0.833 (0.779-0.887) in the BSR and GR groups, respectively (p = 0.007 and p < 0.001, respectively). Sensitivity was improved by AI assistance in both groups (74.6% vs. 88.6% in BSR, p < 0.001; 52.1% vs. 79.4% in GR, p < 0.001), but the specificity did not differ significantly (66.6% vs. 66.4% in BSR, p = 0.238; 70.8% vs. 70.0% in GR, p = 0.689). The average reading time pooled across readers was significantly decreased by AI assistance for BSRs (82.73 vs. 73.04 seconds, p < 0.001) but increased in GRs (35.44 vs. 42.52 seconds, p < 0.001). Conclusion: AI-based software improved the performance of radiologists regardless of their experience and affected the reading time.

Innovative Teaching Technologies as a Way to Increase Students' Competitiveness

  • Olena M. Galynska;Nataliia V. Shkoliar;Zoriana I. Dziubata;Svitlana V. Kravets;Nataliia S. Levchyk
    • International Journal of Computer Science & Network Security
    • /
    • 제24권7호
    • /
    • pp.157-169
    • /
    • 2024
  • The article presents an analysis of innovative teaching technologies as a way to increase students' competitiveness. The author found that innovative technologies in education are information and communication technologies relying on computer-based learning. The structure, content of educational software, organization of Web-space are important when using innovative teaching technologies in English classes. We conducted the study in several stages: comparative analysis, synthesis, classification and systematization of the results of psychological and pedagogical, educational and methodological research; study of legislative acts, periodicals in order to identify the state of the research issue, and determining the directions of its solution, as well as subject, goal and objectives of the study. We used modelling to create situations of foreign language professional communication of future IT specialists. Empirical methods involved questionnaires used for identifying the motives of professional development and determining the features of the educational activities of future IT specialists in the process of training. The methods of mathematical statistics allowed to scientifically describe and systematize the obtained data, to identify the quantitative relationship between the studied phenomena, to analyse and summarize the results. We conducted a socio-psychological study during 2016 - 2019. It involved 255 first- and fourth-year students of National Technical University of Ukraine "Igor Sikorsky Kyiv Poly-technic Institute." Innovative information and communication technologies that improve the educational and cognitive activity of students, as well as increase the level of their knowledge have become important in teaching a foreign language in higher educational institutions. These technologies include MOODLE - Modular Object-Oriented Dynamic Learning Environment, business game, integrated pedagogical technology, case study technology. Thus, the information-rich learning process in combination with the use of innovative technologies, well-organized e-learning, interactive training courses, multimedia tools improves the program of teaching and learning foreign languages in general, and English in particular, improves the level of knowledge of future IT specialists and motivation to study and learn foreign languages, allows students to use a variety of authentic materials. We state that all these factors influence the process of individualization of learning and contribute to the successful mastery of a foreign language.

Why A Multimedia Approach to English Education\ulcorner

  • Keem, Sung-uk
    • 대한음성학회:학술대회논문집
    • /
    • 대한음성학회 1997년도 7월 학술대회지
    • /
    • pp.176-178
    • /
    • 1997
  • To make a long story short I made up my mind to experiment with a multimedia approach to my classroom presentations two years ago because my ways of giving instructions bored the pants off me as well as my students. My favorite ways used to be sometimes referred to as classical or traditional ones, heavily dependent on the three elements: teacher's mouth, books, and chalk. Some call it the 'MBC method'. To top it off, I tried audio-visuals such as tape recorders, cassette players, VTR, pictures, and you name it, that could help improve my teaching method. And yet I have been unhappy about the results by a trial and error approach. I was determined to look for a better way that would ensure my satisfaction in the first place. What really turned me on was a multimedia CD ROM title, ELLIS (English Language Learning Instructional Systems) developed by Dr. Frank Otto. This is an integrated system of learning English based on advanced computer technology. Inspired by the utility and potential of such a multimedia system for regular classroom or lab instructions, I designed a simple but practical multimedia language learning laboratory in 1994 for the first time in Korea(perhaps for the first time in the world). It was high time that the conventional type of language laboratory(audio-passive) at Hahnnam be replaced because of wear and tear. Prior to this development, in 1991, I put a first CALL(Computer Assisted Language Learning) laboratory equipped with 35 personal computers(286), where students were encouraged to practise English typing, word processing and study English grammar, English vocabulary, and English composition. The first multimedia language learning laboratory was composed of 1) a multimedia personal computer(486DX2 then, now 586), 2) VGA multipliers that enable simultaneous viewing of the screen at control of the instructor, 3) an amplifIer, 4) loud speakers, 5)student monitors, 6) student tables to seat three students(a monitor for two students is more realistic, though), 7) student chairs, 8) an instructor table, and 9) cables. It was augmented later with an Internet hookup. The beauty of this type of multimedia language learning laboratory is the economy of furnishing and maintaining it. There is no need of darkening the facilities, which is a must when an LCD/beam projector is preferred in the laboratory. It is headset free, which proved to make students exasperated when worn more than- twenty minutes. In the previous semester I taught three different subjects: Freshman English Lab, English Phonetics, and Listening Comprehension Intermediate. I used CD ROM titles like ELLIS, Master Pronunciation, English Tripple Play Plus, English Arcade, Living Books, Q-Steps, English Discoveries, Compton's Encyclopedia. On the other hand, I managed to put all teaching materials into PowerPoint, where letters, photo, graphic, animation, audio, and video files are orderly stored in terms of slides. It takes time for me to prepare my teaching materials via PowerPoint, but it is a wonderful tool for the sake of presentations. And it is worth trying as long as I can entertain my students in such a way. Once everything is put into the computer, I feel relaxed and a bit excited watching my students enjoy my presentations. It appears to be great fun for students because they have never experienced this type of instruction. This is how I freed myself from having to manipulate a cassette tape player, VTR, and write on the board. The student monitors in front of them seem to help them concentrate on what they see, combined with what they hear. All I have to do is to simply click a mouse to give presentations and explanations, when necessary. I use a remote mouse, which prevents me from sitting at the instructor table. Instead, I can walk around in the room and enjoy freer interactions with students. Using this instrument, I can also have my students participate in the presentation. In particular, I invite my students to manipulate the computer using the remote mouse from the student's seat not from the instructor's seat. Every student appears to be fascinated with my multimedia approach to English teaching because of its unique nature as a new teaching tool as we face the 21st century. They all agree that the multimedia way is an interesting and fascinating way of learning to satisfy their needs. Above all, it helps lighten their drudgery in the classroom. They feel other subjects taught by other teachers should be treated in the same fashion. A multimedia approach to education is impossible without the advent of hi-tech computers, of which multi functions are integrated into a unified system, i.e., a personal computer. If you have computer-phobia, make quick friends with it; the sooner, the better. It can be a wonderful assistant to you. It is the Internet that I pay close attention to in conjunction with the multimedia approach to English education. Via e-mail system, I encourage my students to write to me in English. I encourage them to enjoy chatting with people all over the world. I also encourage them to visit the sites where they offer study courses in English conversation, vocabulary, idiomatic expressions, reading, and writing. I help them search any subject they want to via World Wide Web. Some day in the near future it will be the hub of learning for everybody. It will eventually free students from books, teachers, libraries, classrooms, and boredom. I will keep exploring better ways to give satisfying instructions to my students who deserve my entertainment.

  • PDF