Electron Population Aging Models for Wide-Angle Tails

Color-color diagrams have been useful in studying the spectral shapes in radio galaxies. At the workshop we presented color-color diagrams for two wide-angle tails, 1231+674 and 1433+553, and found that the standard aging models do not adequately represent the observed data. Although the JP and KP models can explain some of the observed points in the color-color diagram, they do not account for those found near the power-law line. This difficulty may be attributable to several causes. Spectral tomography has been previously used to discern two separate electron populations in these sources. The combination spectra from two such overlying components can easily resemble a range of power-laws. In addition, any non-uniformity in the magnetic field strength can also create a power-law-like spectrum. We will also discuss the effects that angular resolution has on the shape of the spectrum.Comment: 4 pages, 1 figure, proceedings from 1999 'Life Cycles of Radio Galaxies' workshop at STScI in Baltimore, M

Bootstrap confidence intervals for predicted rainfall quantiles

Rainfall probability charts have been used to quantify the effect of the Southern Oscillation Index (SOI) on rainfall for many years. To better understand the effect of the SOI phases, we discuss forming confidence intervals on the predicted rainfall quantiles using percentile bootstrap methods

Blind source separation using temporal predictability

A measure of temporal predictability is defined and used to separate linear mixtures of signals. Given any set of statistically independent source signals, it is conjectured here that a linear mixture of those signals has the following property: the temporal predictability of any signal mixture is less than (or equal to) that of any of its component source signals. It is shown that this property can be used to recover source signals from a set of linear mixtures of those signals by finding an un-mixing matrix that maximizes a measure of temporal predictability for each recovered signal. This matrix is obtained as the solution to a generalized eigenvalue problem; such problems have scaling characteristics of O (N3), where N is the number of signal mixtures. In contrast to independent component analysis, the temporal predictability method requires minimal assumptions regarding the probability density functions of source signals. It is demonstrated that the method can separate signal mixtures in which each mixture is a linear combination of source signals with supergaussian, sub-gaussian, and gaussian probability density functions and on mixtures of voices and music

Understanding consumption within a residential care home : an interpretation of George’s everyday experiences of life and death

We are witnessing perhaps the most important shift in the history of mankind – the rapid ageing of the earths population. This trend raises such issues as elderly care giving and living arrangements in old age. By virtue, the author suggests that managing service provision for elderly consumers within residential care homes is going to become an increasingly important issue as more consumers live longer and require residential care. Moreover, given the paucity of literature related to elderly consumers understandings of such institutions this research aims to illuminate and distil this issue. Based on existential-phenomenological hermeneutic interpretive methods the author reveals that elderly consumers actively consume life and death related experiences in order to create a meaningful existence within residential care homes

Transnational philanthropy, policy transfer networks and the Open Society Institute

The Open Society Institute ( OSI) is a private operating and grant-making foundation that serves as the hub of the Soros foundations network, a group of autonomous national foundations around the world. OSI and the network implement a range of initiatives that aim to promote open societies by shaping national and international policies with knowledge and expertise. The OSI provides an excellent case study of the strategies of transnational activism of private philanthropy. It is an institutional mechanism for the international diffusion of expertise and ‘best practices’ to post communist countries and other democratizing nations. This paper avoids assumptions that civil society is an entirely separate and distinguishable domain from states and emergent forms of transnational authority. Focusing on the ‘soft’ ideational and normative policy transfer undermines notions of clear cut boundaries between an independent philanthropic body in civil society and highlights the intermeshing and mutual engagement that comes with networks, coalitions, joint funding, partnerships and common policy dialogues

Experimental Results in Heavy Flavor Physics

The interplay of experiment and theory is explored in the context of current data on b and c decay. Measurements of |Vcb| and |Vub| are extracted from existing data. Conservative estimates give |Vcb|=(42.4 +/- 1.2{exp} +/- 2.3{thy})x10^{-3} and |Vub|=(3.90 +/- 0.16{exp} +/- 0.53{thy})x10^{-3}. Using these values along with data on Bd, Bs mixing and CP violation in the K_{Long} system, the allowed region of the CKM parameters rho and eta is derived. Tests of factorization in two-body hadronic B decays to one heavy and one light meson are shown and compared with modern theories which are also used to see if there is new physics in two-body B decays to light mesons. The two new narrow D_{sJ} states, discovered by BaBar and CLEO, respectively, are interpreted in light of the observation of these states in B decays by Belle.Comment: Plenary talk at International Europhysics Conference on High Energy Physics EPS (July 17th-23rd 2003) in Aachen, Germany, 16 pages, 37 figures. Fixed Table 5 caption on Oct. 18 and errors on Nov. 5, 200

The benefits of resource discovery for publishers: a librarian’s view

A core goal of librarians is to maximize usage of the content to which their libraries subscribe. Webscale or resource discovery systems offer a single search box for library users to access subscribed content. This article examines usage data at the University of Huddersfield to show how resource discovery has helped to increase the usage of publisher content, which has been made available to discovery vendors and considers the implications for publishers who are yet to do this. The article concludes that resource discovery systems have effectively levelled the playing field, allowing small to medium sized publishers to make content discoverable to users, and encourages publishers who do not have their content indexed in resource discovery systems to speak to discovery service vendor in order to do so at the earliest opportunity

Lifetimes of some bb-flavored hadrons

Recent measurements of lifetimes of some $b$-flavored hadrons are presented and interpreted in the context of theoretical models, especially the Heavy Quark Expansion. Decay widths and decay width differences in the $B_s^0-\overline{B}_s^0$ system are discussed from studies of decays into the final states $J/\psi K^+K^-$, $J/\psi \pi^+\pi^-$, $D_s^+D_s^-$, $K^+K^-$, and $D_s^{\pm}\pi^{\mp}$. Lifetime measurements of the baryons $\Lambda_b^0$, $\Xi_b^-$, $\Xi_b^0$, and $\Omega_b^-$ are also shown.Comment: Presented at 2014 Flavor Physics and CP Violation (FPCP-2014) Marselle, France, May 26-30, 2014;19 pages, 17 figures, to appear in the proceeding