Effective media-utility in learning

Thesis (Ph. D. in Education)--University of Tsukuba, (A), no. 2484, 2001.3.23Includes bibliographical reference

Podcasts, An Increasingly Effective Media Tool

The importance of the world staying connected and up-to-date on current news and new information is only going to continue as technology improves and people look for new sources of education. As we see so many things shift online during the Covid-19 pandemic, it’s only natural that news would continue to shift that way as well. Even before the Covid-19 pandemic, podcasts were an alternate source of information that was becoming more and more popular. While the information distributed by podcasts and social media may not be as complete as news from stereotypical sources, they are much more effective because they are more accessible, better at capturing the audience’s attention, and can be used to educate people on important issues or start a conversation

Perception of Social and Behaviour Change Communication Media in Cross River State, Nigeria

In the wake of increased interventions into health and social problems arising from various behaviours in Cross River State, this paper is set to ascertain the most effective media that can be utilized for effective communication. The mass media of communication, including television, radio, newspapers and magazines, bill boards, hand bills, posters, theatre and many other social and interpersonal media of communication are available for patronage by interventionists targeting change in any society. The question however is which of the media is the most viable? To determine this, a survey was conducted to sample the opinions of 140 media students from two higher institutions: the University of Calabar and the Cross River University of Technology (CRUTECH), all in Cross River State. The population of the study comprised both undergraduates and graduate students of Theatre and Media Studies and Mass Communication in both institutions. Findings reveal that out of the fourteen (14) media tools brought into limelight, radio, television, and billboards are the most patronized tools for change communication. The paper concludes and recommends that non-governmental organizations and the government can utilize radio, television, billboards and the church as the most effective media for chang

Coupled magnetic plasmons in metamaterials

Magnetic metamaterials consist of magnetic resonators smaller in size than their excitation wavelengths. Their unique electromagnetic properties were characterized by the effective media theory at the early stage. However, the effective media model does not take into account the interactions between magnetic elements; thus, the effective properties of bulk metamaterials are the result of the "averaged effect" of many uncoupled resonators. In recent years, it has been shown that the interaction between magnetic resonators could lead to some novel phenomena and interesting applications that do not exist in conventional uncoupled metamaterials. In this paper, we will give a review of recent developments in magnetic plasmonics arising from the coupling effect in metamaterials. For the system composed of several identical magnetic resonators, the coupling between these units produces multiple discrete resonance modes due to hybridization. In the case of a system comprising an infinite number of magnetic elements, these multiple discrete resonances can be extended to form a continuous frequency band by strong coupling. This kind of broadband and tunable magnetic metamaterial may have interesting applications. Many novel metamaterials and nanophotonic devices could be developed from coupled resonator systems in the future.Comment: 10 papges, 10 figures, It is a review paper about coupled magnetic metamaterial

Influence of low-level Pr substitution on the superconducting properties of YBa2Cu3O7-delta single crystals

We report on measurements on Y1-xPrxBa2Cu3O7-delta single crystals, with x varying from 0 to 2.4%. The upper and the lower critical fields, Hc2 and Hc1, the Ginzburg-Landau parameter and the critical current density, Jc(B), were determined from magnetization measurements and the effective media approach scaling method. We present the influence of Pr substitution on the pinning force density as well as on the trapped field profiles analyzed by Hall probe scanning.Comment: 4 pages, 5 figures, accepted for publication in J. Phys. Conf. Se