40,266 research outputs found
HyperStat Online: Power
No full textThis site, created by author David M. Lane of HyperStat Online, defines power and explains what factors may affect it, such as significance level, sample size and variance. In addition, their is an activity allowing students to estimate the power they want to use in a given experiment. Finally, their is an eight question set of exercises which allows the student to apply the knowledge gained from this website
Determinants of equity return correlations:A case study of the Amman Stock Exchange
Full text linkThis paper seeks to explain time-varying correlations among equity returns. The literature has shown that fundamental and economic factors can explain stock returns or the volatility of markets. Here, panel data analysis is employed to examine whether these factors can also explain the comovement of stock returns. Time-varying correlations among sectoral indexes are estimated using a restricted multivariate threshold GARCH model with dynamic conditional correlation (DCC-MTGARCH) controlling for the asymmetric effects of news and the influence of financial crises. The empirical results from this panel data analysis show that equity return correlations can be explained not only by macroeconomic variables but also by fundamentals within an industry
Content-aware power saving multimedia adaptation for mobile learning
No full textDue to the tremendous enhancements in the capabilities of mobile devices in recent years and accessibility to higher bandwidth mobile internet, the use of online multimedia learning resources on mobile devices is increasingly becoming popular. Improvements in battery capacity have not matched the same advancements compared to other features of mobile devices. Limited Battery power is introducing a significant challenge in making better use of online educational multimedia resources. Online Multimedia Resources drains more battery power as a result of higher amount of wireless data transfer and therefore limiting learning opportunities on the move. Many power saving multimedia adaptation techniques have been suggested. Majority of these techniques achieve battery efficiency while reducing multimedia quality. So far, however, to the best of our knowledge no previous effort has considered the factor of learning efficacy in multimedia adaptation process. Existing adaptation techniques are susceptible to information loss as a result of quality of reduction. Such loss affects the learning content efficacy and jeopardizes the learning process. In this paper, we recommend a novel power save educational multimedia adaptation approach that considers the learning aspect of multimedia in the adaptation process. Our technique enables learning for extended duration by battery power saving without putting the learning process at risk. Efficacy of entire learning resources is managed by not allowing any part of the learning multimedia to be delivered in a quality that will negatively affect the learning outcome. We also present a framework that guides the implementation of our approach followed by description of our prototype application that uses educational multimedia metadata implemented in semantic web technologies
David L. Paletz & Robert M. Entman. — Media - Power - Politics
No full textBertrand Claude-Jean. David L. Paletz & Robert M. Entman. — Media - Power - Politics. In: Revue Française d'Etudes Américaines, N°16, février 1983. Les intellectuels aux Etats-Unis. pp. 177-178
David L. Paletz & Robert M. Entman. — Media - Power - Politics
No full textBertrand Claude-Jean. David L. Paletz & Robert M. Entman. — Media - Power - Politics. In: Revue Française d'Etudes Américaines, N°16, février 1983. Les intellectuels aux Etats-Unis. pp. 177-178
Power grid simulation, evaluation, and test framework
No full textThe Virtual Power System Testbed (VPST) at the University of Illinois at Urbana-Champaign is part of the Trustworthy Cyber Infrastructure for the Power Grid (TCIP) and is maintained by members of the Information Trust
Institute (ITI). VPST is designed to be integrated with other testbeds across the country to explore performance and security of Supervisory Control and
Data Acquisition (SCADA) protocols and equipment. First, we discuss the approach we took to developing virtual SCADA models, validating the models, and how researchers can use the local test bed to validate their own technologies.
Then, we discuss potential use cases in order to motivate the integration of VPST with other testbeds, identify requirements of inter-connected testbeds, and describe our design for integration with VPST.Item withdrawn by Mark Zulauf ([email protected]) on 2010-04-28T16:28:10Z
Item was in collections:
University of Illinois Theses & Dissertations (ID: 1)
No. of bitstreams: 7
thesisrefs.bib: 19006 bytes, checksum: ac7597c252c52ad76dc3ce3af20f371c (MD5)
def.tex: 2056 bytes, checksum: 63b5ced164c29a41d47d0003c9a6ed08 (MD5)
intro.tex: 97149 bytes, checksum: bfa84d393015505412a6c646154c84ec (MD5)
ack.tex: 1672 bytes, checksum: 3ad6525e389cc600c342b6bb3660c568 (MD5)
abs.tex: 808 bytes, checksum: eb22520f9356d4a2362f36b905453f5a (MD5)
ecethesis.tex: 4938 bytes, checksum: b5cd47781d571a100a7a563423c3ac74 (MD5)
Bergman_David.pdf: 1012137 bytes, checksum: 9a41ee1231bb52b6c8a848c4e9781baa (MD5)Made available in DSpace on 2010-05-19T18:39:15Z (GMT). No. of bitstreams: 8
thesisrefs.bib: 19006 bytes, checksum: ac7597c252c52ad76dc3ce3af20f371c (MD5)
def.tex: 2056 bytes, checksum: 63b5ced164c29a41d47d0003c9a6ed08 (MD5)
intro.tex: 97149 bytes, checksum: bfa84d393015505412a6c646154c84ec (MD5)
ack.tex: 1672 bytes, checksum: 3ad6525e389cc600c342b6bb3660c568 (MD5)
abs.tex: 808 bytes, checksum: eb22520f9356d4a2362f36b905453f5a (MD5)
ecethesis.tex: 4938 bytes, checksum: b5cd47781d571a100a7a563423c3ac74 (MD5)
Bergman_David.pdf: 1012137 bytes, checksum: 9a41ee1231bb52b6c8a848c4e9781baa (MD5)
license.txt: 4063 bytes, checksum: 85a60be738f1f5d0934fbfe1f5110e9e (MD5
Leveraging diversity in American academic medicine. The Harold Amos Medical Faculty Development Program
No full textPeer reviewe
Landsat MSS classification of fire fuel types in Wood Buffalo National Park, northern Canada
No full textJ1: Global Ecology & Biogeography Letters; M3: Article; Milne, David Franklin, Steven E. Wilson, Bradley A. Ghitter, Geoff Heathcott, Mark McCaffrey, Thomas M. Ow, Charlotte F. Y.; Source Information: Mar1994, Vol. 4 Issue 2, p33; Subject Term: FOREST fires; Author-Supplied Keyword: Canada (Wood Buffalo National Park); Author-Supplied Keyword: Forest fire; Author-Supplied Keyword: Fuel type classification; Author-Supplied Keyword: Landsat data; Number of Pages: 0p; Document Type: Articl
Taking advantage of Ramadan and January in Muslim countries
Full text linkStudies have shown that religious beliefs and practice play an important role in influencing share price behaviour. Evidence of a Ramadan effect has been documented in Muslim countries suggesting an increase in mean returns as well as a reduction in volatility during the ninth month of the Islamic calendar. In addition to the Ramadan effect, studies have also documented a January effect in Muslim countries. The current study investigates what happens when the Ramadan effect and the January effect occur at the same time. Controlling for the effects of financial crises and time-varying volatility in returns, the results for individual company data from four countries with sizeable Muslim populations indicate higher returns and lower volatility when these two effects overlap, except in one, arguably more Western country, Turkey
Islamic calendar anomalies: Pakistani Practitioners' perspective
Full text linkPurposeStudies on Islamic calendar anomalies in financial markets tend to apply quantitative analysis to historic share prices. Surprisingly, there is a lack of research investigating whether the participants of such markets are aware of these anomalies and whether these anomalies affect their investment practice. Or is it a case that these practitioners are completely unaware of the anomalies present in these markets and are missing out on profitable opportunities? The purpose of this paper is to analyse the views of influential participants within the Pakistani Stock Market.Design/methodology/approachThe study documents the findings for 19 face-to-face semi-structured interviews conducted with brokers, regulators and high-net-worth individual investors in Karachi.FindingsThe paper’s major findings indicate that the participants believed that anomalies were present in the stock market and market participants were actively attempting to exploit these anomalies for abnormal gains. Interviewees suggested that predictable patterns can be identified in certain Islamic months (Muharram, Safar, Ramadan and Zil Hajj). The most common pattern highlighted by the interviews related to the month of Ramadan. Furthermore, interviewees mentioned the influence of the “Memon” community in the Pakistani Stock Market. Respondents also suggested that investor sentiment played an important role in influencing the stock market prices and trading patterns.Originality/valueBecause all the prior studies investigating Islamic calendar anomalies in Muslim-majority countries adopted quantitative method using secondary data, the current investigation is of particular value, as it focuses on the qualitative analyses and reports the views of market participants. This allows to fully explore the topic under investigation and to draw robust conclusions
- …
