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

Future B Experiments from The BTeV/LHC-b Perspective

Many measurements are necessary in the program of studying mixing, CP violation and rare decays of b and c quarks. These measurements require large numbers of B^o, B_s, B^- and D^{*+} hadrons. Fortunately, copius production of particles containing b and c quarks will occur at Tevatron and the LHC. The crucial measurements are described here, as well as the design of the two experiments, LHC-b and BTeV, that can exploit the 4-20 x 10^{11} b hadrons produced every 10^7 seconds.Comment: Presented at the 3rd International Conference on B Physics and CP Violation, Taipei, December 3-7, 1999 15 pages, 10 figure

Transfer agents and global networks in the 'transnationalization' of policy

This paper focuses on the role of international actors in policy/ knowledge transfer processes to suggest a dynamic for the transnationalization of policy results. The paper seeks to redress the tendency towards methodological nationalism in much of the early policy transfer literature by bringing to the fore the role of international organizations and non-state actors in transnational transfer networks. Secondly, attention is drawn to 'soft' forms of transfer - such as the spread of norms - as a necessary complement to the hard transfer of policy tools, structures and practices and in which non-state actors play a more prominent role. Thirdly, transnational networks are identified as an important vehicle for the spread of policy and practice not only cross-nationally but in emergent venues of global governance

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