Design-for-test structure to facilitate test vector application with low performance loss in non-test mode.

A switching based circuit is described which allows application of voltage test vectors to internal nodes of a chip without the problem of backdriving. The new circuit has low impact on the performance of an analogue circuit in terms of loss of bandwidth and allows simple application of analogue test voltages into internal nodes. The circuit described facilitates implementation of the forthcoming IEEE 1149.4 DfT philosophy [1]

On Gauge-Invariant Decomposition of Nucleon Spin

We investigate the relation between the known decompositions of the nucleon spin into its constituents, thereby clarifying in what respect they are common and in what respect they are different essentially. The decomposition recently proposed by Chen et al. can be thought of as a nontrivial generalization of the gauge-variant Jaffe-Manohar decomposition so as to meet the gauge-invariance requirement of each term of the decomposition. We however point out that there is another gauge-invariant decomposition of the nucleon spin, which is closer to the Ji decomposition, while allowing the decomposition of the gluon total angular momentum into the spin and orbital parts. After clarifying the reason why the gauge-invariant decomposition of the nucleon spin is not unique, we discuss which decomposition is more preferable from the experimental viewpoint.Comment: The version to appear in Phys. Rev.

Nucleon structure from mixed action calculations using 2+1 flavors of asqtad sea and domain wall valence fermions

We present high statistics results for the structure of the nucleon from a mixed-action calculation using 2+1 flavors of asqtad sea and domain wall valence fermions. We perform extrapolations of our data based on different chiral effective field theory schemes and compare our results with available information from phenomenology. We discuss vector and axial form factors of the nucleon, moments of generalized parton distributions, including moments of forward parton distributions, and implications for the decomposition of the nucleon spin.Comment: 68 pages, 47 figures. Main revision points: improved discussion of chiral fits and systematic uncertainties, several minor refinements. Accepted for publication in Phys.Rev.

Perceived age discrimination across age in Europe: from an ageing society to a society for all ages

Ageism is recognized as a significant obstacle to older people's well-being, but age discrimination against younger people has attracted less attention. We investigate levels of perceived age discrimination across early to late adulthood, using data from the European Social Survey (ESS), collected in 29 countries (N = 56,272). We test for approximate measurement invariance across countries. We use local structural equation modeling as well as moderated nonlinear factor analysis to test for measurement invariance across age as a continuous variable. Using models that account for the moderate degree of noninvariance, we find that younger people report experiencing the highest levels of age discrimination. We also find that national context substantially affects levels of ageism experienced among older respondents. The evidence highlights that more research is needed to address ageism in youth and across the life span, not just old adulthood. It also highlights the need to consider factors that differently contribute to forms of ageism experienced by people at different life stages and ages.info:eu-repo/semantics/acceptedVersio

Nucleon Electromagnetic Form Factors from Lattice QCD using 2+1 Flavor Domain Wall Fermions on Fine Lattices and Chiral Perturbation Theory

We present a high-statistics calculation of nucleon electromagnetic form factors in $N_f=2+1$ lattice QCD using domain wall quarks on fine lattices, to attain a new level of precision in systematic and statistical errors. Our calculations use $32^3 \times 64$ lattices with lattice spacing a=0.084 fm for pion masses of 297, 355, and 403 MeV, and we perform an overdetermined analysis using on the order of 3600 to 7000 measurements to calculate nucleon electric and magnetic form factors up to $Q^2 \approx$ 1.05 GeV$^2$. Results are shown to be consistent with those obtained using valence domain wall quarks with improved staggered sea quarks, and using coarse domain wall lattices. We determine the isovector Dirac radius $r_1^v$, Pauli radius $r_2^v$ and anomalous magnetic moment $\kappa_v$. We also determine connected contributions to the corresponding isoscalar observables. We extrapolate these observables to the physical pion mass using two different formulations of two-flavor chiral effective field theory at one loop: the heavy baryon Small Scale Expansion (SSE) and covariant baryon chiral perturbation theory. The isovector results and the connected contributions to the isoscalar results are compared with experiment, and the need for calculations at smaller pion masses is discussed.Comment: 44 pages, 40 figure

Big Bang Nucleosynthesis Constraints on Brane Cosmologies

We examine constraints from Big Bang nucleosynthesis on type II Randall-Sundrum brane cosmologies with both a dark radiation component and a quadratic term that depends on the 5-dimensional Planck mass, M_5. Using limits on the abundances of deuterium and helium-4, we calculate the allowed region in the M_5-dark radiation plane and derive the precise BBN bound on M_5 alone with no dark radiation: M_5 > 13 TeV.Comment: 3 pages, 1 figure, references added, to appear in Phys. Lett.

Subjective social status of older people across countries: the role of modernization and employment

Objectives. To test and expand upon modernization theory's account of subjective social status (SSS) of older people in society. It was hypothesized that perceptions of older people's social status should be higher in more modernized countries and that the proportion of older people in employment should moderate the relationship between modernization and SSS of older people. Methods. Data were from the "Experiences and Expressions of Ageism" module in the fourth round of the European Social Survey. The sample analyzed included 45,706 individuals from 25 countries in the European region. Multilevel modeling was used to test the hypotheses. Results. The SSS of older people (aged 70 years and older) was perceived to be higher in countries with very high levels of modernization and in countries with a higher proportion of older people in employment. The positive association between modernization and SSS of older people was stronger within countries with a lower proportion of older people in employment. Discussion. The proportion of older people who are employed is an important factor that is related to perceptions of the social status of older people in less modern societies. The individual and societal implications are discussed, specifically in relation to policies promoting active aging.info:eu-repo/semantics/acceptedVersio

Social psychology and gerontology: integrating theory to explain and intervene in age discrimination towards older people in Europe

Today, age discrimination is one of the most fundamental forms of discrimination endured by Europeans. In an aging society this carries important consequences for the overall health and wellbeing of European citizens. This chapter discusses how integrating Social Psychology with Gerontology theorizing may contribute to the design of proper research and interventions dealing with this pressing social issue. To illustrate our discussion we present two case studies based on our findings from the “Experiences and expressions of ageism” module of the European Social Survey. Case 1 shows how the perception of age discrimination by older people mediates and helps to explain the effects of wealth inequality on older people’s subjective health. Case 2 presents compelling evidence showing that, among older people, identifying with being an older person is associated with poor health outcomes, especially in countries where older people’s status is lower. These findings are discussed in light of their implications for theory and practical intervention in this domain.info:eu-repo/semantics/publishedVersio

Revisiting the paradox of well-being: the importance of national context

WOS:000344667300012Objectives. Despite age-related changes or declines in circumstances, health or income, many older people are able to maintain subjective well-being (SWB) in later life. This is known as the paradox of well-being. To date, much research has focused on either individual- (e.g., age, health, and income) or country-level (e.g., national wealth, inequality) differences in SWB. The present research investigates how these levels combine, and whether the paradox of well-being persists across different economic contexts. Method. This research uses the 2008–2009 European Social Survey to test the multilevel hypothesis that economic circumstances, reflected by a country’s Gross Domestic Product (GDP), affect the paradox of well-being, that is, the relationship between age and SWB. Analyses also account for other relevant psychological, individual, and country differences. Possible avenues by which GDP affects SWB are also explored. Results. The multilevel analysis revealed that GDP disproportionally affects the SWB of older people relative to younger people, and that the paradox of well-being is only observed in countries with higher GDP. Discussion. The findings clarify the relationship between age and SWB by demonstrating that the paradox of wellbeing is conditional on the economic context. Implications for individual- and country-level strategies for successful aging are discussed.info:eu-repo/semantics/acceptedVersio