다발성 결절양상의 피부전이로 발견된 췌장암 1예

김희수,이상표,박성우,류성태,오웅식,이정환,김홍자 대한내과학회 2004 대한내과학회지 Vol.66 No.4

췌장암은 악성종양의 5% 이하를 차지하며, 피부전이는 매우 드물다. 저자들은 결정성 전신피부병변으로 내원한 환자에서 초음파와 컴퓨터단층 촬영상 췌장종괴가 발견되고 CA 19-9이 매우 높았으며 피부조직 검사를 시행한 결과 전이성 선암으로 판정되어 췌장암에서 유래된 피부전이암으로 진단되어진 증례를 접하고 문헌고찰과 함께 보고한다. Carcinoma of the pancreas represents less than 5% human malignant neoplasm. It's skin involvement is rare. A 73 year-old man presented with multiple skin lesions located on the face, neck and body. The histopathologic study of the skin lesion was confirmed to be an metastatic adeno-carcinoma. The primary tumor was regarded as the mass at the head of the pancreas observed on the CT scan, but was not confirmed by biopsy. We report a case of multiple cutaneous metastasis from pancreatic carcinoma with brief review of related literature.

Feeding and related morphology of salivary glands of Bradysia odoriphaga (Diptera: Sciaridae)

Huan-Huan Gao,Yi-Fan Zhai,Xue Cao,Xian-Hong Zhou,Zhong-Yan Wang,Fang Wang,Hao Chen,Yi Yu 한국응용곤충학회 2016 Journal of Asia-Pacific Entomology Vol.19 No.2

The amount of Bradysia odoriphaga larval feeding at each developmental stage and the related morphology of salivary glands were investigated in this study. The amount of daily feeding in the third instar was greatest among all the developmental stageswhile the amount of cumulative feeding in the fourth-instar accounted for 53.56% of the total amount of larval feeding. The daily amount of feeding by B. odoriphaga during the whole larval stage peaked in the 8th and 14th day after hatching. The paired and transparent salivary glands of B. odoriphaga were characterized by two distinct regions: an anterior region and a posterior region. At the fourth-instar and pupal stage, the length of salivary glands decreased significantly compared with that of the third-instar, and the integrity of epithelium cytoplasm in the salivary glands also decreased markedly because of the formation of cytoplasmic vacuoles and degradation of rough endoplasmic reticulum and mitochondria. We concluded that the decrease of daily feeding amount in the last instar was related to the structural change of salivary gland closely. The function of salivary glands in B. odoriphaga was mainly secretion of silk and cocooning-like materials during the last larval instar.

How Does Leadership Influence Follower Creativity? - The Role of Follower Identifications and Perceived Organizational Support -

Wang Huan Huan,Zhang Hong Peng,Kim Jong Kwan,Lee Yun Kyeong 한국인적자원관리학회 2018 인적자원관리연구 Vol.25 No.5

오늘 날 4 차 산업혁명으로 명명되는 기술적 융합과 디지털 신기술의 태동으로 인간의 노동을 대체할 수 있는 인공지능의 등장은 인간의 가치가 창의적인 사고에 있음을 다시금 깨닫게 하고 있다. 이와 같은 환경의 병화에서 많은 조직과 기업들은 창의적인 사고, 지식 공유 등을 통하여 고유한 가치를 개발하고 발전시키기 위해 노력하고 있다. 조직 내 창의성은 단순히 창의적인 개인으로 인하여 만들어 질 수 있는 것이 아니라, 구성원이 창의적일 수 있는 조직문화가 중요하다. 많은 연구에서는 리더의 역할이 조직문화 조성에 중요한 기반으로 보고 있다. 본 연구에서는 변혁적 리더십과 거래적 리더십의 개념 및 구성요소에 대한 명확한 설명을 토대로 팔로어의 창의성과 리더십의 관계를 검증하고자 한다. 기존에 연구된 리더십과 창의성의 관계에 팔로어의 정체성을 매개변수로, 지각된 조직지원인식을 조절변수로 하여 보다 포괄적인 관계를 알 수 있을 것으로 생각한다. 연구를 위해 중국 북경과 상하이의 기업을 대상으로 설문을 실시하여 242 부의 설문지를 통계에 사용하였다. 가설검증 결과 변혁적 리더십과 거래적 리더십은 오두 팔로어의 창의성에 긍정적인 영향이 있는 것으로 나타났다. 또한 팔로어의 정체성이 리더십과 팔로어의 창의성의 관계를 매개하고 있으며, 리더십과 팔로어의 관계적 정체성은 지각된 조직지원인식에 의해 조절되고 있었다. 이와 같은 연구결과를 바탕으로 연구의 시사점, 한계점 및 향후의 연구 방향이 제시되었다. The importance of creativity to an organization and society is undeniable, simultaneously, leadership is a key factor affecting the creativity of followers within an organization. Based on the clarification of the concepts and dimensions of transformational leadership and transactional leadership, this paper examined follower identifications as a mediator and employees’ perceptions of organizational support as a moderator in the relationship between leadership and follower creativity. Using a sample of 242 employees who engaged in manufacturing working in Beijing and Shanghai, China, we found that most of our hypotheses were supported. Specifically, results showed that follower identifications mediate the positive influence relationship between leadership on follower creativity, and follower’s perceived organizational support moderate both transformational leadership and transactional leadership in the relationship with follower relational identification. Implications of the findings, Limitations of the study and directions for future research are discussed.

Mite Prevalence and Mite Sensitivity in China

Wen, Ting Huan,Cal, Li,Xu, Wei Hing,Wang, Hong,Xiang, Li,Hong, Shou Shu,Zhong, Jiang Min,Zhuang, Yi Jun 대한알레르기학회 1991 천식 및 알레르기 Vol.11 No.2

네 대의 주 추진기를 이용한 무인잠수정의 속도, 심도 및 방위각 제어 - 시뮬레이션 및 실험

전봉환(BONG-HUAN JUN),이판묵(PAN-MOOK LEE),이계홍(JI-HONG LI),홍석원(SEOK-WON HONG),이지홍(JIHONG-LEE) 한국해양공학회 2005 韓國海洋工學會誌 Vol.19 No.2

This paper describes depth, heading and speed control of an underwater vehicle that has four stern thrusters of which forces are coupled in the diving and, steering motion, as well as the speed of the vehicle. The optimal linear quadratic controller is designed based on a linearized- state space model, developed by combining the dynamic equations of speed, steering and diving motion. The designed controller gives provides an optimal thrust distribution, minimizing the given performance index to control speed, depth and heading simultaneously. To validate the performance of the controller, a simulation and tank-test are carried out with DUSAUV (Dual Use Semi-Autonomous Underwater Vehicle), developed by KORDI as a test-bed for testing new underwater technologies. Optimal gains of the controller are tuned, using a computer simulation environment with a nonlinear 6-DOF numerical DUSAUV model, developed by PMM (Planner Motion Mechanism) test. To verify the performance of the presented controller in experiment, a tank-test with DUSAUV is carried out in the ocean engineering basin in KORDI. The experimental results are also compared with the simulation results to investigate the accordance of the numerical and the real mode.

Korean Dictionaries and Some Model Dictionaries of the World : Critical Essays toward the Plan for a New Korean Dictionary

Lee, Sang Sup,Nam, Ki Shim,Ahn, Sam Huan,Choi, Young Ai,Hong, Chai Song 연세대학교 언어정보개발원 1988 사전편찬학 연구 Vol.1 No.1

After briefly reviewing the history of lexcoigraphy in modem Korea, Nam Kishim tackles many problems created by the general deficiency of current Korean monolingual dictionaries in phonological morphological and semantic points. For example, most Korean dictionaries do not treat such phonological changes as the shortening of the stem vowel ㅓ in 더운, the prenominal form of the adjective 덥다, whose stem vowel ㅓ is pronounced long. He also takes issue with the practice of Korean dictionaries of including all kinds of proper names on little reliable principles : a typical dictionary enters a 600m-high hill while excluding better-known mountains higher than that. Hong Chai-song concentrates on the often misguiding information on transitive / intransitive verbs in current dictionaries. For example, a representative dictionary designates the verb 뛰다 simply as intransitive. But it is quite often used as an transitive also. In the sentence, 철수는 운동장을 뛰었다, 운동장 is the object of the transitive verb 뛰다. How could the compilers miss such an obvious fact? Hong suggests that they may have not been interested in being grammatically informative. A historical survey of the Oxford English Dictionary(OED) is given by Lee Sang-sup, with special emphasis on the vast amount of quotations from real sources contributed by thousands of volunteer readers through several decades and on its unwavering historical principle. A comparison between the OED's definition of Kimchi and a Korean dictionary's 김치 is given, showing the difference of principle in treating the same lexical item. Ahn Sam-huan presents a detailed account of Grimm's Deutsches Wo¨rterbuch which took generations of German lexicographers 133 years from its inception to its completion in 1971. On the basis of his study, Ahn suggests that future dictionary makers should cooperate as a group on a long-range comprehensive project. A moltivolume dictionary is an all-important cultural event for the whole nation, not to be influenced by private commercial interests. Choi Young-ai's survey of Chinese lexicography highlights the now on-going publication of 漢語字典 and 漢語詞典, admirable results of the cooperative effort of hundreds of Chinese scholars, a modus operandi for the Yonsei University graze to adopt in planning a new dictionary of the Korean language.

Study the Thermal Behaviours for Asphalt Concrete Mixed with Basic Oxygen Furnace Slags

( Huan-lin Luo ),( Deng-fong Lin ),( Show-ing Shieh ),( Yi-hong Liu ),( Yu-kai Wang ) 한국폐기물자원순환학회(구 한국폐기물학회) 2019 ISSE 초록집 Vol.2019 No.-

In Taiwan, the basic oxygen furnace (BOF) slags are characterized as porous material and with better heat insulation than that of the natural aggregates. The BOF slags have been applied to the pavement as parts of the natural aggregate replacement. The asphalt concrete (AC) with the BOF slags replacements were well recognized and performed. In this study, parts of natural aggregates were replaced by the BOF slags in the AC helping resolve the gradual shortage of the natural resources and save energy and reduce the produce of carbon. In this study, parts of the natural aggregates were replaced by the coarse and fine BOF slags in the construction of AC. Because the thermal insulation and heat absorption are different between BOF slags and natural aggregates, the infrared thermal conductivity measuring instrument was applied to obtain the surface temperatures presented as thermal infrared images in AC. Then, the infrared temperature distribution images were obtained by using the image transformation techniques. The results show that the thermal conductivity for the AC containing with fine BOF slag was larger than that for the coarse BOF slag. The BOG slag replacement in AC helped improve the thermal insulation in AC. Moreover, the temperature was more uniformly distributed for AC with the fine BOF slag than that for the coarse BOF slag replacement. However, the coarse BOF slag was better in the preserve of energy for AC than that of the fine BOF slag.

Rapid functional screening of effective siRNAs against Plk1 and its growth inhibitory effects in Laryngeal carcinoma cells

( Huan Lan ),( Jiang Zhu ),( Qing Ai ),( Zheng Mei Yang ),( Ying Ji ),( Su Ling Hong ),( Fang Zhou Song ),( You Quan Bu ) 생화학분자생물학회 (구 한국생화학분자생물학회) 2010 BMB Reports Vol.43 No.12

Plk 1 is overexpressed in many human malignancies including laryngeal carcinoma. However, its therapeutic potential has been never examined in laryngeal carcinoma. In the present study, a simple cellular morphology-based strategy was firstly proposed for rapidly screening the effective siRNAs against Plk1. Furthermore, we investigated the effects of Plk1 depletion via a novel identified effective siRNA against Plk1, Plk1 siRNA-607, on human laryngeal carcinoma Hep-2 cells. The results indicated that Plk1 siRNA-607 transfection resulted in a significant inhibition in Plk1 expression in cells, and subsequently caused a dramatic mitotic cell cycle arrest followed by massive apoptotic cell death, and eventually resulted in a significant decrease in growth and viability of the laryngeal carcinoma cells. Taken together, our present study not only suggests a simple strategy for rapidly screening effective siRNAs against Plk1 but also implicates that Plk1 may serve as a potential therapeutic target in human laryngeal carcinoma. [BMB reports 2010; 43(12): 818-823]

Comparison of developmental and reproductive biology inwing diphenic Anaphothrips obscurus (Thysanoptera: Thripidae)

Hong-Xue Jiang,Su-Huan Niu,Xiao-Wei Li,Xiao-Chen Zhang,Ji-Nian Feng 한국응용곤충학회 2015 Journal of Asia-Pacific Entomology Vol.18 No.4

Anaphothrips obscurus (Müller) is a cosmopolitan pest feeding on cereal crops and grasses. This species exhibits wing polyphenism. Differences in the life history traits of female macropterous and brachypterous A. obscurus were compared in the laboratory for this study. Experiments were performed in climate chambers set at 20 and 25 ± 1 °C, 60 ± 10% RH under a 16 L:8D photoperiod. The duration of total pre-adult stage, adult preoviposition period and total pre-oviposition period of macropterous morphs were significantly longer than in the brachypterous morphs both at 20 and 25 °C. No significant differenceswere found in adult longevity, survival rate or total fecundity between the twowingmorphs,while early fecunditywas significantly higher for brachypterous females compared with that for macropterous females at two temperatures.

Spectral Factorization for Multiple Input Delayed Discrete-Time Systems with Applications to Control

Hong-Guo Zhao,Huan-Shui Zhang,Peng Cui,Xiao Lu 제어·로봇·시스템학회 2010 International Journal of Control, Automation, and Vol.8 No.3

This paper deals with the linear quadratic regulation problems for the linear discrete-time systems with input delays. The design of the optimal control law is transformed into solving one Diophantine equation and one spectral factorization with delays. A new and simple approach for the spectral factorization is proposed based on reorganized innovation analysis. The calculation of spectral factor comes down to solving Riccati equations with the same dimension as the original systems.