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Commercial vs Free E-resources for English Language Teachers
Barry Natusch 한국멀티미디어언어교육학회 2004 멀티미디어 언어교육 Vol.7 No.1
Natusch, Barry. (2004). Commercial vs Free E-resources for English Language Teachers. Multimedia-Assisted Language Learning, 7(1), xx∼xx. The issue of paid-for and free services in an information and communication context is receiving a lot of attention recently, particularly with the publicity surrounding notions of intellectual property and piracy. Definitions of commercial, shareware and freeware are discussed. A selection of commercial and free e-resources for teaching, administrating and researching useful for English teachers is presented and their respective strengths and weaknesses highlighted. The survey concludes by showing that trends emerging among commercial and free ELT resources suggest that while many mainstream applications are freely or cheaply obtainable, certain specialist items are still only available through commercial channels.
Indoor Channel Characteristics for Visible Light Communications
Kwonhyung Lee,Hyuncheol Park,Barry, J R IEEE 2011 IEEE communications letters Vol.15 No.2
<P>In this letter, we present indoor multipath dispersion characteristics for visible light communications (VLC). Since the VLC uses a wide spectrum between 380 nm and 780 nm, the conventional narrowband model for infrared may not apply. We generalize the Barry's model by including wavelength-dependent white LED characteristics and spectral reflectance of indoor reflectors. We perform a computer simulation to compare the power delay profile of the VLC with that of infrared communications. From our studies, we show that the VLC provides a larger transmission bandwidth than infrared communications.</P>
Countering the Global Islamist Terrorist Threat
( Barry Desker ),( Arabinda Acharya ) 한국국방연구원 2006 The Korean Journal of Defense Analysis Vol.18 No.1
Worldwide terrorist attacks since September 11 suggest that the threat from Islamist terrorism is far from being over. This is despite the arrests and elimination of a significant number of leaders, both of Al Qaeda and its associated groups. With the loss of its leadership, Al Qaeda has become more dispersed and more difficult to predict and preempt. More significantly, Osama Bin Laden has become a beacon for jihadi insurgents everywhere. On the other hand, the use of overwhelming force in the global war on terror is counterproductive. A militaristic approach has further radicalized the Islamic world, increasing the ranks of the jihadis. Similarly, the U.S. invasion of Iraq exacerbated Muslim resentment and nourished those forces, which the world community wishes to undermine and destroy. Terrorists have a powerful advantage: they need to succeed only occasionally; but as defenders, the global community needs to be successful always. This article argues that failure to understand the Islamist terrorist threat in its entirety and to deal with the threat poses significant danger-not only for the United States and its interests, but also for the international community as a whole. Islamist terrorism represents a global ideological battle. It is a battle of hearts and minds. As ideology is at the centre of the current wave of Muslim terrorism, it is necessary to undercut the appeal of radical Islam. This involves empowering moderate Muslims to counter the influence of the radicals. No single country can do this alone.