Xe 4d photoionization in Xe@C60, Xe@C240, and Xe@C60@C240

Re-evaluated parameters for the square-well potential model for photoionization of endo-fullerenes are proposed and employed to reveal the spectacular modifications in the Xe 4d photoionization giant resonance along the path from Xe@C60 to Xe@C240 to multi-walled Xe@[email protected]: 1 page, 1 figure. 2011 International Conference on Photonic, Electronic, and Atomic Collisions (Belfast, UK, 2011), abstract Tue13

Misreporting Fundraising: How do Nonprofit Organizations Account for Telemarketing Campaigns?

The purpose of this study is to examine the frequency, determinants and implications of misreporting fundraising activities. We compare state telemarketing campaign reports with the associated information from nonprofits annual Form 990 filings to directly test nonprofits revenue and expense recognition policies. Our study indicates that smaller nonprofits, and those with less accounting sophistication, are more likely to inappropriately report telemarketing costs as a component of net revenues rather than as expenses. In addition, less monitored firms are more likely to report telemarketing campaign revenues net of expenses. Additionally, among those firms that do report telemarketing costs as expenses, we find that smaller firms, and those with relatively less officer compensation, are more likely to allocate telemarketing expenses to non-fundraising expense categories.This publication is Hauser Center Working Paper No. 37. The Hauser Center Working Paper Series was launched during the summer of 2000. The Series enables the Hauser Center to share with a broad audience important works-in-progress written by Hauser Center scholars and researchers

5s correlation confinement resonances in Xe-endo-fullerenes

Spectacular trends in the modification of the Xe 5s photoionization via interchannel coupling with confinement resonances emerging in the Xe 4d giant resonance upon photoionization of the Xe@C60, Xe@C240 and Xe@C60@C240 endo-fullerenes are theoretically unraveled and interpreted.Comment: 1 page, 1 figure. 2011 International Conference on Photonic, Electronic, and Atomic Collisions (Belfast, UK, 2011). Paper number We15

Models and frameworks for assessing the value of disaster research

Funders, governments, stakeholders and end-users expect to see tangible evidence that an investment in research is a worthy use of resources. Research has impact if it makes a demonstrable contribution to the economy, society, culture, public policy, health, the environment, or quality of life, beyond academia. This paper reviews frameworks that assess the impact of research and considers their usefulness in the conceptualisation and measurement of research impact in the disaster domain. Frameworks demonstrate impact through attribution, measurement and quantification of academic, social, and economic impacts in the short, medium and long term. While there is no specific framework in the hazard domain, adaptation of the “pathways to research impact” tool created by Cruz Rivera et al. (2017) provides a well-considered basis for assessing disaster research impact

Relativistic calculations of angular dependent photoemission time delay

Angular dependence of photoemission time delay for the valence $np_{3/2}$ and $np_{1/2}$ subshells of Ar, Kr and Xe is studied in the dipole relativistic random phase approximation. Strong angular anisotropy of the time delay is reproduced near respective Cooper minima while the spin-orbit splitting affects the time delay near threshold

Confinement and electron correlation effects in photoionization of atoms in endohedral anions: Ne@C60^{z-}

Trends in resonances, termed confinement resonances, in photoionization of atoms A in endohedral fullerene anions A@C60^{z-} are theoretically studied and exemplified by the photoionization of Ne in Ne@C{60}^{z-}. Remarkably, above a particular nl ionization threshold of Ne in neutral Ne@C60 (I_{nl}^{z=0}), confinement resonances in corresponding partial photoionization cross sections sigma_{nl} of Ne in any charged Ne@C60^{z-} remain almost intact by a charge z on the carbon cage, as a general phenomenon. At lower photon energies, omega < I_{nl}^{z=0}, the corresponding photoionization cross sections develop additional, strong, z-dependent resonances, termed Coulomb confinement resonances, as a general occurrence. Furthermore, near the innermost 1s ionization threshold, the 2p photoionization cross section sigma_{2p} of the outermost 2p subshell of thus confined Ne is found to inherit the confinement resonance structure of the 1s photoionization spectrum, via interchannel coupling. As a result, new confinement resonances emerge in the 2p photoionization cross section of the confined Ne atom at photoelectron energies which exceed the 2p threshold by about a thousand eV, i.e., far above where conventional wisdom said they would exist. Thus, the general possibility for confinement resonances to resurrect in photoionization spectra of encapsulated atoms far above thresholds is revealed, as an interesting novel general phenomenon.Comment: 6 pages, 4 figures, Latex2e, jpconf.cls styl

From event analysis to global lessons: disaster forensics for building resilience

With unprecedented growth in disaster risk, there is an urgent need for enhanced learning about and understanding disasters, particularly in relation to the trends in the drivers of increasing risk. Building on the disaster forensics field, we introduce the Post Event Review Capability (PERC) methodology for systematically and holistically analyzing disaster events, and identifying actionable recommendations. PERC responds to a need for learning about the successes and failures in disaster risk management and resilience, and uncovers the underlying drivers of increasing risk. We draw generalizable insights identified from seven applications of the methodology to date, where we find that across the globe policy makers and practitioners in disaster risk management face strikingly similar challenges despite variations in context, indicating encouraging potential for mutual learning. These lessons highlight the importance of integrated risk reduction strategies. We invite others to utilize the freely available PERC approach and contribute to building a repository of learnings on disaster risk management and resilience. This discussion paper is under review for the journal Natural Hazards and Earth System Sciences (NHESS)

Europe as a multilevel federation

Peer reviewedPublisher PD

Universal quantum signature of mixed dynamics in antidot lattices

We investigate phase coherent ballistic transport through antidot lattices in the generic case where the classical phase space has both regular and chaotic components. It is shown that the conductivity fluctuations have a non-Gaussian distribution, and that their moments have a power-law dependence on a semiclassical parameter, with fractional exponents. These exponents are obtained from bifurcating periodic orbits in the semiclassical approximation. They are universal in situations where sufficiently long orbits contribute.Comment: 7 page