Institution
University of Nebraska Omaha
Education•Omaha, Nebraska, United States•
About: University of Nebraska Omaha is a education organization based out in Omaha, Nebraska, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 4526 authors who have published 8905 publications receiving 213914 citations. The organization is also known as: UNO & University of Omaha.
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TL;DR: In this paper, the authors validate an instrument that measures the constructs of a goal-attainment model of meeting satisfaction and test the model among 237 working professionals in 19 groups in the field.
Abstract: Research shows that people who feel dissatisfied with a technology-supported meeting may discontinue use of such technology, even if it provides demonstrable benefits. It is therefore important to derive theoretical understandings of the satisfaction phenomenon. This article validates an instrument that measures the constructs of a goal-attainment model of meeting satisfaction. It then tests the model among 237 working professionals in 19 groups in the field. Results support the propositions that satisfaction with meeting process and satisfaction with meeting outcome are both a function of an individual's perceived net goal attainment with respect to the meeting. The results also support a proposed link between satisfaction with meeting outcome and satisfaction with meeting process. The authors discuss the implications of these findings for research and practice.
119 citations
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TL;DR: In this article, the authors examined the contribution of social bond, self-control and social learning concepts to the explanation of male and female violent offending, and explored the unique contribution of gang membership, school environment and prior victimization to these explanatory models.
Abstract: Most research on violence has focused on males, but recent studies indicatethat females are also involved in violent crimes. Few studies, to date,have examined whether different or similar models explain male and femaleinvolvement in violent behavior. In the current research, we examine therelative contribution of social bond, self-control and social learningconcepts to the explanation of male and female violent offending. We alsoexplore the unique contribution of gang membership, school environment andprior victimization to these explanatory models. Using a multisite sampleof eighth-grade students, we find that results of a Chow test indicate theneed for separate theoretical models. Despite some similarities, differentfactors account for male and female rates of violent behavior.
119 citations
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TL;DR: In this article, the minimum innermost radius of armchair-type nanoscrolls is achieved by using first-principle calculation, and the electronic structures of nanoscrollers are greatly related to chirality (n,m).
Abstract: With special topology differing from nanotubes, carbon nanoscrolls (CNSs) rolled up by a single graphene sheet show unique properties and have potential applications in hydrogen storage and energy storage. We studied various types of nanoscrolls by using first principle calculation. The minimum innermost radius of armchair-type nanoscrolls is achieved. The electronic structures of nanoscrolls are greatly related to chirality (n,m). Armchair nanoscrolls are metallic or semimeatllic depending on their sizes and those metallic ones have larger density of states at the Fermi level than metallic single-walled nanotubes (SWNTs). Zigzag nanoscrolls are semiconductors with energy gaps much smaller than corresponding zigzag SWNTs; moreover, they get small gaps at (16,0) and (19,0), while zigzag SWNTs have small gaps at (3n,0).
119 citations
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TL;DR: In this article, the authors employ the recently proposed nonparametric causality-in-quantiles test to analyse the predictability of returns and volatility of sixteen U.S. dollar-based exchange rates (for both developed and developing countries) over the monthly period of 1999:01-2012:03, based on information provided by a news-based measure of relative uncertainty, i.e., the differential between domestic and U. S. uncertainties.
Abstract: Recent studies have analysed the ability of measures of uncertainty to predict movements in macroeconomic and financial variables. The objective of this paper is to employ the recently proposed nonparametric causality-in-quantiles test to analyse the predictability of returns and volatility of sixteen U.S. dollar-based exchange rates (for both developed and developing countries) over the monthly period of 1999:01–2012:03, based on information provided by a news-based measure of relative uncertainty, i.e., the differential between domestic and U.S. uncertainties. The causality-in-quantile approach allows us to test for not only causality-in-mean (1st moment), but also causality that may exist in the tails of the joint distribution of the variables. In addition, we are also able to investigate causality-in-variance (volatility spillovers) when causality in the conditional-mean may not exist, yet higher order interdependencies might emerge. We motivate our analysis by employing tests for nonlinearity. These tests detect nonlinearity, as well as the existence of structural breaks in the exchange rate returns, and in its relationship with the EPU differential, implying that the Granger causality tests based on a linear framework is likely to suffer from misspecification. The results of our nonparametric causality-in-quantiles test indicate that for seven exchange rates EPU differentials have a causal impact on the variance of exchange rate returns but not on the returns themselves at all parts of the conditional distribution. We also find that EPU differentials have predictive ability for both exchange rate returns as well as the return variance over the entire conditional distribution for four exchange rates.
119 citations
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TL;DR: In this paper, the density functional theory was used to find that organometallic multidecker sandwich clusters may have linear structures, and their total magnetic moments generally increase with the cluster size.
Abstract: By using the density functional theory, we find that organometallic multidecker sandwich clusters V2n+1Cp2n+2, Vn(FeCp2)n+1 (Cp = cyclopentadienyl), and V2nAntn+1 (Ant = anthracene) may have linear structures, and their total magnetic moments generally increase with the cluster size. The one-dimensional (VCp)∞, (VBzVCp)∞ (Bz = benzene), and (V2Ant)∞ wires are predicted to be ferromagnetic half-metals, while the one-dimensional (VCpFeCp)∞ wire is a ferromagnetic semiconductor. The spin transportation calculations show that the finite V2n+1Cp2n+2 and Vn(FeCp2)n+1 sandwich clusters coupled to gold electrodes are nearly perfect spin-filters.
119 citations
Authors
Showing all 4588 results
Name | H-index | Papers | Citations |
---|---|---|---|
Darell D. Bigner | 130 | 819 | 90558 |
Dan L. Longo | 125 | 697 | 56085 |
William B. Dobyns | 105 | 430 | 38956 |
Eamonn Martin Quigley | 103 | 685 | 39585 |
Howard E. Gendelman | 101 | 567 | 39460 |
Alexander V. Kabanov | 99 | 447 | 34519 |
Douglas T. Fearon | 94 | 278 | 35140 |
Dapeng Yu | 94 | 745 | 33613 |
John E. Wagner | 94 | 488 | 35586 |
Zbigniew K. Wszolek | 93 | 576 | 39943 |
Surinder K. Batra | 87 | 564 | 30653 |
Frank L. Graham | 85 | 255 | 39619 |
Jing Zhou | 84 | 533 | 37101 |
Manish Sharma | 82 | 1407 | 33361 |
Peter F. Wright | 77 | 252 | 21498 |