• Title/Summary/Keyword: science stories

Search Result 202, Processing Time 0.027 seconds

Etv5, a transcription factor with versatile functions in male reproduction

  • Eo, Jinwon;Song, Haengseok;Lim, Hyunjung Jade
    • Clinical and Experimental Reproductive Medicine
    • /
    • v.39 no.2
    • /
    • pp.41-45
    • /
    • 2012
  • Transcription factors govern diverse aspects of cell growth and differentiation as major switches of gene expression. Etv5, a member of the E26 transformation-specific family of transcription factors, has many stories to share when it comes to reproduction. Etv5 deficient mice show complex infertility phenotypes both in males and females. In males, the infertility phenotype exhibited by Etv5 deficiency is sexually dimorphic, and it involves both somatic cells and germ cells. In $Etv5^{-/-}$ female mice, the problem is more complicated by hormonal involvement. This review synthesizes old and new information on this versatile transcription factor-from the inadvertent discovery of its role in the testes to its newly discovered role in maintaining spermatogonial stem cells.

AN IMPORTANT ROLE OF ASTRONOMY: TO EDUCATE ABOUT GLOBAL ENVIRONMENTAL PROBLEMS

  • ISOBE SYUZO
    • Journal of The Korean Astronomical Society
    • /
    • v.29 no.spc1
    • /
    • pp.451-453
    • /
    • 1996
  • There is a question, 'Which is beautiful, a flower or a star?'. Its answer is different from one person .to another. It is only a matter of what one is interested in. It is very difficult for most school pupils, who will have non-scientific jobs, to understand science courses taught currently in school, because each science (physics, chemistry, biology, and earth science) is independently taught from the other sciences. Therefore, their knowledge of sciences obtained during their school period does not significantly help their understanding of global environmental problems. I am proposing that several scientific stories should be prepared to connect all the related scientific phenomena in order to give those pupils ideas in understanding global environmental problems. I believe that astronomy is able to play an important role in this context.

  • PDF

Unidentified Flying Objectivity: The Rhetoric of Pseudo-Science in Four Major Newspapers in Korea (미확인비행물체(UFO)에 대한 우리나라 신문 보도의 특징: 과학저널리즘의 관점에서)

  • Shin, Soon-Chul
    • Korean journal of communication and information
    • /
    • v.62
    • /
    • pp.244-263
    • /
    • 2013
  • There have been enormous social impacts on many areas, including science journalism, since the so-called "Hwang Woo Suk" incident. Although wide demand for better science journalism has been aroused since then, but it is hard to find an evidence to prove we have reached the point. This study examines how major Korean newspapers report Unidentified Flying Objects in order to test if the level of science journalism had been elevated. As results, still it is a long road ahead to achieve the goals because most reports were taken from the international news agents or from the witnesses rather than scientific researches and analyses; terminologies used in the stories were ambiguous; follow-up stories were rare, the sources were usually pseudo-scientific, wanton errors in basic facts and coherence, and other problems were found. It could be suggested that the dependency on supplied news to be reduced, journalists who understand both science and journalism are required, inner regulations on science reporting to be established, correct quotations and fact-checks to be accomplished, fairness to be maintained within the boundary of normal science.

  • PDF

The Effects of the Creative Thinking and Creative Personality Using the 'Weather and our life' on Science-Based STEAM (과학 기반 STEAM의 '날씨와 우리생활' 학습이 창의적사고 및 창의적 인성에 미치는 효과)

  • Lee, Yong-Seob;Kim, Yoon-Kyung
    • Journal of the Korean Society of Earth Science Education
    • /
    • v.5 no.2
    • /
    • pp.204-212
    • /
    • 2012
  • The purpose of this study was to examine the effects of science-based STEAM on creative thinking and creative personality. For this study the 3 grade, 2 class was divided into a research group and a comparative group. The class was pre-tested in order to ensure the same standard. The research group had the science class with science-based STEAM, and the comparative group had the class with teacher centered lectures for 5 months. The science-based STEAM was focused on finding stories in lifes, composition of knowledge, completion of knowledge. The results of this study are as follows. First, science-based STEAM was effective in creative thinking. Second, science-based STEAM was effective in creative personality. Also, after using science-based STEAM was good reaction by students. As a result, the elementary science class with science-based STEAM had the effects of developing creative thinking and creative personality. it means the science class with creative personality has potential possibilities and value to develop creative thinking and creative personality.

Observation of brand Characters of 'Blessing Pattern' used in ancestral household utensils in Korea (한국 전통 생활 용품에 나타난 '구복문양'의 브랜드 특성에 관한 고찰)

  • Han, Ji-Ae;Shin, Seung-Taek
    • Archives of design research
    • /
    • v.18 no.2 s.60
    • /
    • pp.293-302
    • /
    • 2005
  • The emotion and culture of an age are reflected through several mediums. The special quality and generality are discovered through household utensils used in everyday life specially. This paper was intended as proceeding study for brand development with national empathic relationship. In this article, we were here concerned with symbolism and features for stories of traditional pattern on ancestral common household utensils, and considered about development possibility by brand of tradition pattern. As analysis for symbolism of traditional pattern, re-sorting and classifying pattern, meaning, symbol and stories of pattern based on 'Blessing notion' were set. It was found from the analysis that meaning and symbol of traditional pattern were set up and stories for them were excerpted. This study defines tradition pattern classified based on 'Blessing notion' as '8 Blessing pattern', and investigated development possibility and derivative value of it. We discovered through this study that 'Blessing patterns' function as communicator, have 4 abilities in sympathy with brand paradigm, and have 6 elements of brand identity. Furthermore, 'Blessing Patierns' have some derivative functions; cognitive intension, expression, loyalty, differentiation and symbol. This research will become basis of study for brand development having 'Empathic relationship' and foundation of 'Blessing brand' that is available to be umbrella and super brand. A further direction of this study will be to make 'Blessing brand series' and to create culture of it. We hope Korean brand market goes a step further through our studies

  • PDF

Glocalization of e-Services (글로벌 e-서비스 기업의 현지 생존화 전략)

  • Min, Jae-H.
    • Korean Management Science Review
    • /
    • v.28 no.3
    • /
    • pp.125-141
    • /
    • 2011
  • We have recently witnessed many of global companies did not successfully adapt themselves to local markets, and finally exited the markets experiencing failures. The purpose of this study is to suggest practical glocalization strategies for global e-service companies to run their respective businesses in local markets with success. Glocalization is a terminology blending globalization and localization, meaning that global companies adapt themselves to local cultures, environment, languages, laws and regulations so as to survive and prosper in those markets while maintaining high quality of standards and processes they originally have for global competitive edge. Examining success stories as well as failure ones of global e-service companies having entered Asian markets, we provide marketing mix strategy for successful glocalization, and suggest some guidelines for prospective e-service companies wishing to enter local markets with different cultures and languages to fit themselves to new environments.

데이터 웨어하우스 구축을 위한 상향식.하향식 접근 방법에 관한 연구 - 방법론적 고찰을 통한 접근

  • 박주석;전대성;박진휘
    • Proceedings of the Korean Operations and Management Science Society Conference
    • /
    • 1998.10a
    • /
    • pp.15-18
    • /
    • 1998
  • Recently, domestic datawarehouse marketplaces take up the most important part of information technology investments with ERP(Enterprise Resource Planning), EC(Electronic Commerce) construction projects in spite of a business slowdown for IMF environment. Therefore, in industrial fields as finances, communications, manufactures, distributions, and so on, datawarehouse was constructed or is under construction, and datawarehouse success stories was showed around some enterprises that has constructed previously datawarehouse. This study is intended to be henceforth an index and direction for an actual proof study by discussing a study of methodology for datawarehouse construction in order to compare and analyze Top-down & Bottom-up approach for datawarehouse that has constructed in actual enterprises.

  • PDF

The Effects of Macrostructure of Discourse Processing (대형구조가 글 애해에 미치는 영향)

  • Cho, Hey-Ja
    • Korean Journal of Cognitive Science
    • /
    • v.2 no.1
    • /
    • pp.51-72
    • /
    • 1990
  • This study investigated the effects of macrostructure on discourse processing. In this study, three different story were employed to form macrostructures on different times, and reading time, sentence verification time and free recall rate were measured as dependent vari- ables. The results showed that forming the macrostructure influenced the reading and verification times and the recall rate. The results were interpreted to indicate that the macrostructure is important to comprehend and recall the stories, and that the story grammars, hierarchies of story schema and causal relation of sentences affect the comprehension and recall through their interaction in macrostructure.

Object Detection from Mongolian Nomadic Environmental Images

  • Perenleilkhundev, Gantuya;Batdemberel, Mungunshagai;Battulga, Batnyam;Batsuuri, Suvdaa
    • Journal of Multimedia Information System
    • /
    • v.6 no.4
    • /
    • pp.173-178
    • /
    • 2019
  • Mongolian historical and cultural monuments on settlement areas of stone inscriptions, stone images, rock-drawings, remains of cities, architecture are still telling us their stories. These monuments depict the understanding of the word, philosophical and artistic outlook, beliefs, religion, national art, language, culture and traditions of Mongols [1]. Nowadays computer science, especially computer vision is applying in the other science fields. The main problem is how to apply and which algorithm can detect and classify the objects correctly. In this paper, we propose a method to detect object from Mongolian nomadic environment images. This work proposes a method for object detection that is the combination of the binary operations in the edge detection results. We found out the best method and parameters of state-of-the-art machine learning algorithms. In experimental result, we evaluate our results with 10-fold cross validation and split 66% strategies.

A Study on the Factors Affecting Small-scale Construction Site Safety and Health Compliance (소규모 건설현장 안전보건규제 준수의지 요인 연구)

  • Lee, Byung-Kwan
    • Journal of the Korea Safety Management & Science
    • /
    • v.20 no.2
    • /
    • pp.21-35
    • /
    • 2018
  • The purpose of this study is to reduce the accident rate by introducing a safety system for small construction sites belonging to local governments. In the case of a small construction site, permission is granted through the building permission department and the construction management of the building safety management of 1,000 square meters of floor area less than 3 stories is not properly performed in the Enforcement Decree of the Building Act of Korea. In the current state of industrial accidents in 2016, 81.8% of all accident victims are found to be vulnerable to accident such as those occurring at work places with less than 50 employees. Considering the fact that the construction work with less than 5 billion KRW of the construction cost in Korea generates the most deaths, it is time to introduce the safety and health system of local governments.