• 제목/요약/키워드: internal knowledge

검색결과 1,047건 처리시간 0.03초

과혈관성 종양으로 오인된 간의 가성림프종: 증례보고 (Hepatic Pseudolymphoma Mimicking a Hypervascular Tumor: A Case Report)

  • 임보라;장석기;연재우;백소야;박상종;김혁중
    • 대한영상의학회지
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    • 제79권6호
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    • pp.348-353
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    • 2018
  • 간의 가성 림프종은 비종양성 림프구의 절 외 과다증식에 의해 형성되는 드문 양성 종양이다. 검색한 바에 따르면 현재까지 영문으로 46예가 보고되었다. 우리는 75세 여자환자에서 과혈관성 종양으로 오인된 간의 가성 림프종 증례를 보고하고자 한다. 조직검사상 직장의 신경내분비 암종이 진단된 후 시행한 조영증강 전산화단층촬영에서 1.0 cm 크기의 경계가 불분명하고 낮은 감쇄를 보이는 결절이 간에 관찰되었다. 자기공명영상에서는 동맥 조영기에 조영 증강을 보이고, 20분 지연기 조영 영상에서 저신호 강도를 보이며, 확산강조영상에서 고신호 강도를 보였다. Fluorodeoxyglucose (이하 FDG) positron emission tomography (PET)/CT에서는 FDG의 섭취 증가를 보였다. 초음파에서는 저에코성 병변으로 관찰되었고, 초음파 유도 하 조직검사를 통하여 간의 가성 림프종으로 확진 되었다.

『오리엔탈리즘』 계보학의 해체론적 재해석 "Truths are illusions which we have forgotten are illusions") (진리란 그것이 환상임을 망각하고 있는 착각이다) (Deconstructing the Genealogy of Orientalism in Term of a Supplement)

  • 최수
    • 영미문화
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    • 제17권2호
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    • pp.29-61
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    • 2017
  • Said's Orientalism criticized the European representations on the Middle-East by theorizing orientalism as a discourse. In this text, he explored and criticized the colonial forms of knowledge and language that distorted the image of the colonized. The justification of the discourse of orientalism is derived from the binary system that is originated from Plato which Derrida rejects on the ground that it always privileges one term over the other, that is, colonizer over colonized. Derrida names for this traditional heritage of Western binary system logocentrism which regards logos(the Greek term for speech or reason) as the central principle of language and philosophy, whereas mythos derives its meaning from the logos on the basis of binary oppositions. Thus according to logocentrism, the colonized is merely the defined who can have its meaning from the definers, colonizers. In this paper, utilizing Derrida's a (non)concept called supplement which means both to add on as a surplus and to make up something missing as a mere extra, I propose another alternative interpretation towards the critique of colonial representation by raising internal contradictions in the Platonic dichotomy between logos and mythos embedded in western colonialism discourse, orientalism. I attempt to show that logos(colonizer) and mythos(colonized) is inseparable in itself due to the fact that they exist as supplementary. For this purpose, I demonstrate how colonial binary system constituted and was constituted in terms of language. Through this paper I reinterpret the colonial rationality of privileging 'logos' over 'mythos' by substituting the colonial binary system with the supplement.

국가·공공기관 전산망 특성에 따른 사이버 위협 분석 및 분류에 관한 연구 (A Study on the Analysis and Classification of Cyber Threats Accor ding to the Characteristics of Computer Network of National·Public Organizations)

  • 김민수;박기태;김종민
    • 융합보안논문지
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    • 제20권4호
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    • pp.197-208
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    • 2020
  • 지식정보사회에서 발전된 네트워크 인프라를 바탕으로 전산망의 구조는 보안성을 확보한 다양한 형태의 망 구성을 구축하여 운영하고 있다. 국가·공공기관 전산망의 경우 각 기관별 특성과 연계 기관까지 고려한 기술적, 관리적 보안환경 구축이 필요하며, 이를 위해 기관별 특성에 따른 사이버 위협을 분류 및 위협 지도를 바탕으로 기술적·관리적 취약점 및 사이버 위협을 분석 등을 통한 사이버 훈련을 위한 기본 연구의 중요성이 대두되고 있다. 따라서 본 연구에서는 인터넷망과 국가정보통신망의 이원적 인프라 망을 기반으로 구축되어진 국가·공공기관 전산망의 내·외부 사이버 위협에 따른 유형별 분석을 사례 기반의 시나리오를 통해, 실질적인 사이버 위협 요소를 도출 및 분석하여 사이버보안 훈련 요소 도출용 사이버 위협 MAP을 제시하고자 한다.

치매 환자의 공격성 관리에 활용가능한 억간산(抑肝散)의 고전적, 비임상적, 임상적 근거현황 (Classical, Non-Clinical, and Clinical Evidence of Yokukansan for Alleviating Aggression: Scoping Review)

  • 이동윤;김제범;하다정;권찬영
    • 동의신경정신과학회지
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    • 제32권2호
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    • pp.111-127
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    • 2021
  • Objectives: To review and analyze clinical and preclinical evidence of effectiveness, safety, and underlying mechanisms of yokukansan (YKS), a herbal medicine, in alleviating aggression. Methods: Classical records on YKS were searched in the Korean Traditional Medicine Knowledge Database (KTMKD). By searching five electronic databases, prospective clinical studies and preclinical studies of YKS for alleviating aggression/agitation published up to March 30, 2021 were included. Results: Only two classical records on YKS were found from the KTMKD. A total of 11 clinical studies and 15 preclinical studies were found from the five electronic databases. Among 11 clinical studies, seven enrolled patients with dementia and four enrolled patients with other neuropsychiatric disorders. Most clinical studies reported significant improvement in one or more outcomes related to aggression in the YKS group after treatment. Among 15 preclinical studies, all studies except two reported a significant decrease in aggression/agitation-related behavior of YKS or yokukansankachimpihange. Suggested underlying mechanisms of YKS or yokukansankachimpihange for aggression/agitation in these studies included regulation of serotonin receptor, amelioration of abnormal glucocorticoid level related to the hypothalamic-pituitary-adrenal axis, regulation of orexin secretion, amelioration of degeneration in brain cells including glia cells, and suppression of excessive glutamatergic or dopaminergic activity. Conclusions: There were some clinical and preclinical evidence supporting the effectiveness and safety of YKS for alleviating aggression. Given that aggression is the most frequent and destructive symptoms of behavioral and psychological symptoms of dementia, applicability of YKS as a herbal medicine should be further investigated in future high-quality research.

Professional Mobility as a Factor of Professional Success of a Modern Specialist in the Conditions of Distance Learning

  • Semchuk, Bohdan;Havryliuk, Svitlana;Karnaukh, Lesia;Balakirieva, Viktoriia;Palshkova, Iryna;Leonova, Veronika;Bida, Olena
    • International Journal of Computer Science & Network Security
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    • 제22권8호
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    • pp.260-268
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    • 2022
  • The article considers the training, competitiveness of specialists, professional mobility, professionalism and competence of specialists in the context of distance learning. The advantages of distance learning are shown. The characteristic features of distance learning in the preparation of students and in the implementation of these technologies in the educational process of higher educational institutions are determined. Competitiveness, professional mobility, professionalism and competence of a specialist are qualities that determine a person's life and work success. Professional mobility is interpreted as a systemic quality of a specialist's personality, which includes a whole range of knowledge, skills, abilities, personal qualities, value orientations, and so on. The vision of mobility of specialists by foreign scientists is presented. It is noted that the classification of professional mobility presented in the article makes it possible to organize various movements from a single position, to present them as separate manifestations of the general process of professional and pedagogical mobility, to determine which type of mobility ensures the performance of certain social functions. It was found that mobility can be differentiated into differentiated and intergeneration. According to the subject, individual and group mobility are distinguished; according to the direction - internal and external. The classification of employees according to their attitude to mobility is shown, which can be divided into the following groups: actually mobile; potentially mobile; actually stable; potentially stable.

Effects of early clinical and basic laboratory exposure program on premedical students: a questionnaire survey

  • Cho, Kyu Hyang;Ko, Hyun Sook;Lee, Kyung Hee;Hwang, Tae-Yoon;Lee, Keun-Mi;Kim, Sae Yoon;Chang, Min Cheol
    • Journal of Yeungnam Medical Science
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    • 제39권4호
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    • pp.309-313
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    • 2022
  • Background: Because premed students do not take courses related to medicine during their first 2 years, they cannot establish their identity as students at medical schools, making it difficult for them to set goals as future doctors. We conducted an early clinical and basic laboratory exposure program for premed students and studied the effects of the program and student satisfaction levels. Methods: We performed an early clinical and basic laboratory exposure program for premed students for 2 days and evaluated the effects of the program and student satisfaction with it. The program consisted of two types: type 1, where two to four students formed a group, which was assigned to a particular department to participate and make observations during ward rounds, outpatient clinics, examinations, procedures, and surgeries (in the case of basic laboratory work, the students partook in experimental observations); and type 2, where one student followed a medical school professor to observe the professor's day. After the program ended, an online survey was conducted to investigate the effects on students, their thoughts, and satisfaction levels. Results: In total, 114 students (91.2%) responded to the survey. Approximately 94% of them were satisfied with the program. They found that the program would be useful for deciding on future career paths, gaining knowledge about a department of interest, studying for a medical program after premedical studies, and befriending residents and professors in certain departments. Conclusion: Early clinical and basic laboratory exposure programs are recommended for premedical students.

척수손상으로 인한 운동 및 감각 기능 손상에 대한 전침의 효과: 체계적 문헌 고찰 및 메타 분석 (Effect of Electroacupuncture on Impairment of Motor and Sensory Functions after Spinal Cord Injury: A Systematic Review and Meta-analysis)

  • 정수은;김규희;박정현;이영훈;박상은;조성우
    • 한방재활의학과학회지
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    • 제32권2호
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    • pp.37-54
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    • 2022
  • Objectives This review investigates the effectiveness of electroacupuncture for impairment of motor and sensory functions after spinal cord injury. Methods The databases used for the search were PubMed, Cochrane Library, EMBASE, China National Knowledge Infrastructure (CNKI), National Digital Science Library (NDSL), Koreanstudies Information Service System (KISS), Research Information Sharing Service (RISS), KMBASE, and Oriental Medicine Advanced Searching Integrated System (OASIS). The literature were searched using a total of 9 domestic and foreign databases. Randomized controlled trials (RCTs) using electroacupuncture as an intervention was selected. The selected studies are analyzed the risk of bias through Cochrane risk-of-bias tool, and meta-analysis was perfomed using RevMan version 5.3 (The Nordic Cochrane Centre, The Cochrane Collaboration, Copenhagen, Denmark). Results A total of 14 RCT studies were selected through 9 domestic and foreign databases, and analyzed. As a result of meta-analysis, when electroacupuncture was performed together with rehabilitation treatment or western drug treatment, it was effective in the recovery of motor and sensory functions of spinal cord injury patients. Conclusions This review suggests that electroacupuncture can be applied as an effective treatment for the recovery of motor and sensory functions of spinal cord injuries. However, there are several limitations, including the small number and heterogeneity of the included studies, as well as their poor methodological quality. Therefore, further, higher-quality studies should be required.

좌골신경통에 대한 전침 치료: 체계적 문헌고찰 및 메타분석 (The Effect of Electro Acupuncture for Sciatica: A Systematic Review and Meta-analysis)

  • 김예은;안정훈;차윤엽;한인식;허인;박인화
    • 한방재활의학과학회지
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    • 제32권2호
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    • pp.105-121
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    • 2022
  • Objectives This study was conducted to evaluate the effect of electro-acupuncture for sciatica. Methods We searched 13 online databases (Kmbase, Research Information Sharing Service [RISS], National Digital Science Library [NDSL], Oriental Medicine Advanced Searching Integrated System [OASIS], Koreanstudies, Koreantk, DBpia, PubMed, Cochrane, EMBASE, Medline, China National Knowledge Infrastructure [CNKI], J-stage) to find randomized-controlled clinical trials (RCTs) that used electro-acupuncture for sciatica. Efficacy rate and visual analogue scale (VAS) were mainly analyzed as a main evaluation criteria. Results Among 583 articles that were searched, 24 RCTs were finally selected and 18 RCTs were statistically analyzed. Electro-acupuncture was more effective than acupuncture in terms of efficacy rate (p<0.00001) and VAS (p<0.00001). Also, Electro-acupuncture was more effective than western medication in terms of efficacy rate (p=0.0005). However, the effectiveness of electro-acupuncture was not identified compared to physical therapy (p=0.42). Electro-acupuncture significantly improved efficacy rate when combined with physical therapy than physical therapy alone (p<0.0001). In addition, electro-acupuncture plus Chuna manual therapy compared to Chuna manual therapy alone showed positive results for efficacy rate (p=0.05) and VAS (p<0.0001). Conclusions Based on results, the effectiveness of electro-acupuncture for sciatica was identified. However, this study has limitations because the RCTs included in this study were small in number and published in a particular region. Although this study could be a groundwork for well designed research for sciatica.

코로나-19 무증상 감염 환자의 한약 치료 방안에 대한 고찰 (A review on the treatment of Herbal Medicine for asymptomatically infected COVID-19 patients)

  • 정선형;이경은;정민정;송미덕;장인수
    • 대한한의학회지
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    • 제42권1호
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    • pp.99-109
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    • 2021
  • Objectives: Objective: The purpose of this study is to investigate the treatment of herbal medicine for patients with COVID-19 asymptomatic infections. Method: In English, search engines such as 'PubMed', 'Science Direct', and 'Cumulative Index to Nursing and Allied Health Literature (CINAHL)' were used. In Chinese, search engines such as 'China National Knowledge Infrastructure (CNKI)' and Wanfang were used. The keywords for the search engines were 'COVID-19', 'asymptomatic infection', 'Korean Medicine', 'traditional Chinese medicine', 'herbal medicine', and etc. Only clinical studies using herbal medicine for patients without fever or respiratory symptoms were selected. We excluded the cases that do not fit the research topic. Results: A total of 5 studies were finally selected. Among them, four of them used integrated herbal medicine and Western medicine, and one of the studies treated exclusively for herbal medicine. There were a total of seven prescriptions for herbal medicine used in the study. Outcome variables were used as following: lab test, nucleic acid conversion time, hospitalization period, chest CT, and etc. In the RCT study, herbal medicine and Western medicine decreased nucleic acid conversion time, average hospitalization time compared to the control group, but it was not statistically significant. No other adverse reactions were reported in all studies. Conclusion: According to the results, integrated herbal medicine and Western medicine might be an effective treatment for patients with COVID-19 asymptomatic infection reducing hospitalization period, time of nucleic acid turning negative. No severe adverse effects were reported. However, it is thought that better-designed research will be needed in the future.

제약회사 영업사원의 마케팅-영업-인터페이스능력이 영업성과에 미치는 영향 (Effects of Marketing-Sales-Interface Capability on Sales Performance for Medical Representative in Pharmaceutical Company)

  • 김응준;이상원
    • 한국콘텐츠학회논문지
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    • 제21권11호
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    • pp.543-552
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    • 2021
  • 마케팅-영업-인터페이스(MSI) 능력은 영업사원들이 시장에서의 지식과 경험을 보다 효과적으로 조직 내부 자원들과 소통하는 능력으로서 영업성과에 긍정적인 영향을 주는 것으로 알려져 있다. 본 연구는 제약회사 영업사원의 마케팅-영업-인터페이스(MSI) 능력이 직무만족도를 통해 영업성과에 영향을 미치는 매개효과를 분석하였다. 전국 제약회사 5곳의 영업사원을 대상으로 2021년 4월 15일부터 4월 23일까지 설문조사를 실시하였으며, 총 257부를 최종 분석에 사용하였다. 분석 결과 영업사원이 지각하는 MSI능력은 직무만족도 및 영업성과에 통계적으로 유의한 정(+)의 영향을 보였다. 또한 제약회사 영업사원이 지각하는 MSI능력은 직무만족도를 매개하여 영업성과에 통계적으로 유의한 정(+)의 영향을 보였다. 분석결과는 제약회사 영업사원의 영업성과 향상을 위해 MSI능력과 직무만족도의 중요성을 시사하며, 직무만족도의 매개효과에 주목하여 영업사원 관리와 관련된 방안 마련이 필요함을 보여준다.