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Seoul, South Korea

Korea University is a private research university located in Seoul, South Korea. It was established in 1905, making it one of the oldest institutions of higher education in South Korea.The student body consists of over 20,000 undergraduate students and over 10,000 graduate students. The university’s academic breadth is extensive with its 81 departments in 19 colleges and divisions, and 18 graduate schools and it has over 1,500 full-time faculty members with over 95% of them holding Ph.D. or equivalent qualification in their field. The Korea University Alumni Association consists of more than 280,000 university graduates.Korea University is a research institution consisting of sixteen undergraduate colleges and twenty graduate divisions.The university is notable in South Korean history for being the first educational institution to offer academic programs in various disciplines, such as law, economics, and journalism. Korea University is particularly well known for its College of Law, which is widely considered to be one of the most prestigious undergraduate law programs in South Korea. Korea University also has auxiliary educational facilities such as the Institute of Foreign Language Studies, the Institute for Continuing Education, the Institute of International Education, and the Center for Teaching and Learning. There are 115 research institutes, including the Battelle@KU Laboratory, the Ilmin International Relations Institute, and the Center for Information Security Technologies. Wikipedia.

Kim J.,Korea University
Computers and Education | Year: 2013

This study attempts to examine how students participate and interact in different discussion modules organized with different group size in an online environment. It adopts a case study methodology where full semester online course with two small-group and three class-wide discussion forums was examined. The researcher counted the number of messages and hits (i.e. the number of students' clicks on other messages) and analyzed that to classify the level of interactivity of every individual message into four categories, i.e. independent, quasi-interactive, interactive (elaborative) and interactive (negotiating). It found that the class guidelines and active encouragement by the instructor had contributed to the high number of total messages and hits representing students' overall participation in all discussion forums. However, large discussion forums in the course had their limitations in promoting higher level of interactivity among the students. On the other hand, two small-group discussion forums had a higher number (by 21%) of enhanced interactivity (elaborating and negotiating mode). The study then concludes that a high quality participation in a large online class could be effected through sub-grouping. It further alludes that other practices should be taken into consideration to promote interactivity in discussion. © 2012 Elsevier Ltd. All rights reserved. Source

Kim H.M.,Ajou University | Cho B.R.,Korea University
Chemical Reviews | Year: 2015

The scientific review presents a condensed, all-inclusive evaluation of the design, synthesis, and biomedical application of the various small-molecule two-photon (TP) probes that have been published before December 2014. The review has focused on only the TP probes for which the properties have been clearly characterized and which produce high-quality two-photon microscopy (TPM) images in an effort to avoid an excessive number of references. The review starts by describing the fundamental concept of two-photon absorption (TPA), followed by a description of the organic solvent-based model studies that established the use of TPM in the biomedical field. Source

Bunzli J.-C.G.,Ecole Polytechnique Federale de Lausanne | Bunzli J.-C.G.,Korea University
Chemical Reviews | Year: 2010

The problematic issues of lanthanide luminescent bioprobes (LLB) from the standpoint of their photophysical and biochemical properties are studied. Quenching of the lanthanide luminescence by high-energy vibrational overtones is a major concern in the design of luminescent probes. On the other hand, it allows one to assess the number of water molecules q interacting in the inner coordination sphere from lifetimes measured in water and deuterated water. Several phenomenological equations have been proposed, based on the assumptions that O-D oscillators contribute little to deactivation and that all the other deactivation paths are the same in water and in deuterated water. Efficient lanthanide luminescent bioprobes must meet several stringent requirements, chemical, photophysical, and biochemical. A growing number of bioanalyses require specific targeting of the analyte, and therefore the lanthanide luminescent probes have to be fitted with adequate functionalities able to couple with biological material. Source

Quang D.T.,Hue University | Kim J.S.,Korea University
Chemical Reviews | Year: 2010

Several researchers conducted studies to demonstrate the use of fluoro- and chromogenic chemodosimeters for heavy metal ion detection in solution and biospecimens. They demonstrated that fluorescent chemodosimeters had emerged as as a research area of significant importance due to their potential in detecting heavy metal ions in solution and biospecimens. Chemodosimeters were used to detect an analyte through a highly selective and irreversible chemical reaction between the dosimeter molecule and the target analyte. This led to an observable signal that had an accumulative effect and was directly related to the concentration of the analyte. The chemodosimeter also provided signaling changes in absorption wavelength and color that were widely used as detection events, as they required only the use of cost-effective equipment or no equipment in some cases. Source

Eliseeva S.V.,Ecole Polytechnique Federale de Lausanne | Bunzli J.-C.G.,Ecole Polytechnique Federale de Lausanne | Bunzli J.-C.G.,Korea University
Chemical Society Reviews | Year: 2010

Recent startling interest for lanthanide luminescence is stimulated by the continuously expanding need for luminescent materials meeting the stringent requirements of telecommunication, lighting, electroluminescent devices, (bio-)analytical sensors and bio-imaging set-ups. This critical review describes the latest developments in (i) the sensitization of near-infrared luminescence, (ii) "soft" luminescent materials (liquid crystals, ionic liquids, ionogels), (iii) electroluminescent materials for organic light emitting diodes, with emphasis on white light generation, and (iv) applications in luminescent bio-sensing and bio-imaging based on time-resolved detection and multiphoton excitation (500 references). © 2010 The Royal Society of Chemistry. Source

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