4,540 research outputs found
An Investigation into Game Based Learning Using High Level Programming Languages
Game-related education within mobile learning spheres is a matter of great debate for university students across the globe. It is the case that programming languages often pose a sizeable challenge for university students. This research paper aims to develop a game based learning platform “iPlayCode”, designed to offer a new and exciting method of learning programming language. Xcode 5.0.2 was used to develop the game by using the cocos2d-x development tool and the Adobe Photoshop graphic design tool. In addition, iOS 7.0.3 (11B508) Simulator was used to test the application and the application was deployed in different models of mobile devices such as the iPhone and iPad. The application outcomes are presented by a mobile game that teaches programming languages in an easy, attractive and effective way
Energy Distribution of a G\"{o}del-Type Space-Time
We calculate the energy and momentum distributions associated with a
G\"{o}del-type space-time, using the well-known energy-momentum complexes of
Landau and Lifshitz and M{\o}ller. We show that the definitions of Landau and
Lifshitz and M{\o}ller do not furnish a consistent result.Comment: LaTex, no figure
M{\o}ller Energy-Momentum Complex of a Static Axially Symmetric Vacuum Space-Time
The energy and momentum densities associated with the Weyl metric are
calculated using M{\o}ller's energy-momentum complex. These results are
compared with the results obtained by using the energy-momentum complexes of
Einstein, Landau and Lifshitz, Papapetrou and Bergmann. We show that the
aforementioned different prescriptions and that of M{\o}ller do not give the
same energy density, while give the same momentum density.Comment: LATEX, 9 pages, no figures, an improved version, references added,
corrections [Admin note: substantial overlap with gr-qc/0403097,
gr-qc/0404108 , gr-qc/0303009 , hep-th/0311050
File Synchronization Systems Survey
Several solutions exist for file storage, sharing, and synchronization. Many
of them involve a central server, or a collection of servers, that either store
the files, or act as a gateway for them to be shared. Some systems take a
decentralized approach, wherein interconnected users form a peer-to-peer (P2P)
network, and partake in the sharing process: they share the files they possess
with others, and can obtain the files owned by other peers. In this paper, we
survey various technologies, both cloud-based and P2P-based, that users use to
synchronize their files across the network, and discuss their strengths and
weaknesses.Comment: The Sixth International Conference on Computer Science, Engineering &
Applications (ICCSEA 2016
The Vast Majority Income (VMI): A New Measure of Global Inequality
GDP per capita is by far the most popular measure of international levels of development. It is fairly well understood and widely available across countries and time. But it is also recognized that GDP per capita is an imperfect proxy for important factors such as health, education and well-being. An alternative approach has been to work directly with the variables of concern, as in the UNDP Human Development Index (HDI). The HDI combines GDP per capita with life expectancy and schooling into a single composite index. But, the HDI is difficult to compile. Moreover, because it is an index, it cannot tell us about the absolute standard of living of the underlying population: it can only provide rankings of nations at any moment in time and changes in these rankings over time. It turns out that the rankings produced by the GDP per capita and the HDI are quite highly correlated. Given that GDP per capita also provides an absolute measure of income; it is understandable that it remains so popular. Both the GDP per capita and the HDI measures suffer from that fact that ?they are averages that conceal wide disparities in the overall population? (Kelley, 1991). As a result, it becomes necessary to either supplement these measures with information on distributional inequality as in the Gini coefficient, or to directly adjust GDP per capita and other variables for distributional variations. Sen (1976) derives (1-Gini) as the appropriate adjustment factor for real income. Since a higher inequality implies a lower (1-Gini), this penalizes regions or countries with higher inequalities. The 1993 HDI used this procedure to adjust GDP per capita in various countries. Subsequently, it was extended to encompass the variables in the HDI using discount factors based on the degrees of inequality in their specific distributions. Later, the index incorporated gender-based adjustments by discounting a country?s overall HDI according to the degree of gender-inequality (Hicks, 2004). The above measures of welfare will be re-examined in light of our own finding that inequality-discounted GDP per capita can be interpreted as a measure of the relative per capita income of the first eighty per cent of a nation?s population. This Policy Research Brief introduces a new measure of worldwide income and inequality, which we call the Vast Majority Income (VMI).GDP per capita is by far the most popular measure of international levels of development. It is fairly well understood and widely available across cou
An investigation into the problems of user oriented interfaces in mobile applications
The purpose of this paper is the analysis and evaluation of the mobile interface design. This study consisted of a random sample of 55 user interfaces for mobile applications. In addition, the restriction of all the components of the user interface quantified. An analysis was conducted of these interfaces, in order to represent graphically. Then, evaluated and produced the following results: First, the smaller number of pages in the application is better. Second, decreasing the navigation bars, buttons and menus in user interfaces for mobile applications gives additional space on the screen, making the application easy to use and maintaining the context. Third, diversity, the use of tools ensures good interaction with the user. Finally, a range of results for the design of the user interface and some ideas are provided about what should be taken of these results in mind when designing interfaces for mobile applications
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