bluuebunny/crossref_metadata_2025_split huggingface dataset:
Three misuses of Dionysius for comparative theology
Authors: KNEPPER TIMOTHY D. 
Published: April 2009

AbstractIn his 2000Religious Studiesarticle ‘Ineffability’, John Hick calls upon the Dionysian corpus to bear witness to the ‘transcategorality’ of God and thereby corroborate his comparative theology of pluralism. Hick's Dionysius avows God's transcendence of categories by negating God's names, while at the same time maintaining that such names are metaphorically useful means of uplifting humans to God. But herein reside three common misunderstandings of the Dionysian corpus: (1) the divine names are mere metaphors; (2) the divine names are therefore negated of God; and (3) the negation of divine names is the means by which humans return to and unite with God.
How “weak” mindreaders inherited the earth
Authors: Buckner Cameron , Shriver Adam , Crowley Stephen , Allen Colin 
Published: April 2009

AbstractCarruthers argues that an integrated faculty of metarepresentation evolved for mindreading and was later exapted for metacognition. A more consistent application of his approach would regard metarepresentation in mindreading with the same skeptical rigor, concluding that the “faculty” may have been entirely exapted. Given this result, the usefulness of Carruthers' line-drawing exercise is called into question.
How we know our conscious minds: Introspective access to conscious thoughts
Authors: Frankish Keith 
Published: April 2009

AbstractCarruthers considers and rejects a mixed position according to which we have interpretative access to unconscious thoughts, but introspective access to conscious ones. I argue that this is too hasty. Given a two-level view of the mind, we can, and should, accept the mixed position, and we can do so without positing additional introspective mechanisms beyond those Carruthers already recognizes.
Unsymbolized thinking, sensory awareness, and mindreading
Authors: Hurlburt Russell T. 
Published: April 2009

AbstractCarruthers views unsymbolized thinking as “purely propositional” and, therefore, as a potential threat to his mindreading-is-prior position. I argue that unsymbolized thinking may involve (non-symbolic) sensory aspects; it is therefore not purely propositional, and therefore poses no threat to mindreading-is-prior. Furthermore, Descriptive Experience Sampling lends empirical support to the view that access to our own propositional attitudes is interpretative, not introspective.
What neuroimaging and perceptions of self-other similarity can tell us about the mechanism underlying mentalizing
Authors: Lombardo Michael V. , Chakrabarti Bhismadev , Baron-Cohen Simon 
Published: April 2009

AbstractCarruthers' “mindreading is prior” model postulates one unitary mindreading mechanism working identically for self and other. While we agree about shared mindreading mechanisms, there is also evidence from neuroimaging and mentalizing about dissimilar others that suggest factors that differentially affect self-versus-other mentalizing. Such dissociations suggest greater complexity than the mindreading is prior model allows.
Guilt by dissociation: Why mindreading may not be prior to metacognition after all
Authors: Robbins Philip 
Published: April 2009

AbstractCarruthers argues that there is no developmental or clinical evidence that metacognition is dissociable from mindreading, and hence there is no reason to think that metacognition is prior to mindreading. A closer look at the evidence, however, reveals that these conclusions are premature at best.
The truth and value of theories of associative learning
Authors: Beckers Tom , Vervliet Bram 
Published: April 2009

AbstractIn this commentary, we assess the propositional approach to associative learning not only in terms of veridicality and falsifiability, but also in heuristic value. We remark that it has furthered our knowledge and understanding of human, as well as animal, associative learning. At the same time, we maintain that models developed from the association formation tradition continue to bear great heuristic value as well.
What's reason got to do with it? Affect as the foundation of learning
Authors: Bliss-Moreau Eliza , Barrett Lisa Feldman 
Published: April 2009

AbstractWe propose that learning has a top-down component, but not in the propositional terms described by Mitchell et al. Specifically, we propose that a host of learning processes, including associative learning, serve to imbue the representation of the conditioned stimulus (CS) with affective meaning.
Operating principles versus operating conditions in the distinction between associative and propositional processes
Authors: Gawronski Bertram , Bodenhausen Galen V. 
Published: April 2009

AbstractDrawing on our Associative-Propositional Evaluation (APE) Model, we argue for the usefulness of distinguishing between basic operating principles of learning processes (associative linking vs. propositional reasoning) and secondary features pertaining to the conditions of their operation (automatic vs. controlled). We review empirical evidence that supports the joint operation of associative and propositional processes in the formation of new associations.
Trace conditioning, awareness, and the propositional nature of associative learning
Authors: Li Nanxin 
Published: April 2009

AbstractThe propositional nature of human associative learning is strongly supported by studies of trace eyeblink and fear conditioning, in which awareness of the contingency of a conditioned stimulus upon an unconditioned stimulus is a prerequisite for successful learning. Studies of animal lesion and human imaging suggest that the hippocampus is critical for establishing functional connections between awareness and trace conditioning.
What is the link between propositions and memories?
Authors: Newell Ben R. 
Published: April 2009

AbstractMitchell et al. present a lucid and provocative challenge to the claim that links between mental representations are formed automatically. However, the propositional approach they offer requires clearer specification, especially with regard to how propositions and memories interact. A definition of a system would also clarify the debate, as might an alternative technique for assessing task “dissociations.”
Automatic (spontaneous) propositional and associative learning of first impressions
Authors: Uleman James S. 
Published: April 2009

AbstractContrary to the target article's claims, social cognition research shows considerable learning (about other people) that is relatively automatic. Some of this learning is propositional (spontaneous trait inferences) and some is associative (spontaneous trait transference). Other dichotomies – for example, between learning explicit and implicit attitudes – are also important. However conceived, human conditioning is not synonymous with human learning.
The influence of the welfare state on the number of young old persons
Authors: KOMP KATHRIN , VAN TILBURG THEO , VAN GROENOU MARJOLEIN BROESE 
Published: April 2009

ABSTRACTMany current discussions of welfare state reforms focus on the ‘young old’, a group now generally perceived as healthy people past retirement age without a legal responsibility for dependent persons in need of care. For the welfare state, they constitute a resource whose activities are hard to steer. This article focuses on the influence of the welfare state on the number of ‘young old’ people. It describes different ways in which the welfare state influences the number of young old persons, and investigates whether variations in the regulations for the ages of normal, early and late retirement are the prime cause. The paper also estimates the share of the young old among those aged 50–90 years in 10 European countries in 2004 using comparable survey data. These shares ranged between 36 and 49 per cent for men and between 35 and 52 per cent for women. High shares were found in continental European countries, and low shares in Scandinavian countries and the United Kingdom. The shares in southern European countries varied among the countries and by gender. To explain the variations in the share, country differences in retirement regulations proved helpful but insufficient. When the overall influence of the welfare state on the share of young old persons in the population was analysed, a country-characteristic pattern emerged.
Gender inequality in health among elderly people in a combined framework of socioeconomic position, family characteristics and social support
Authors: RUEDA SILVIA , ARTAZCOZ LUCÍA 
Published: April 2009

ABSTRACTThis study analyses gender inequalities in health among elderly people in Catalonia (Spain) by adopting a conceptual framework that globally considers three dimensions of health determinants: socio-economic position, family characteristics and social support. Data came from the 2006Catalonian Health Survey. For the purposes of this study a sub-sample of people aged 65–85 years with no paid job was selected (1,113 men and 1,484 women). The health outcomes analysed were self-perceived health status, poor mental health status and long-standing limiting illness. Multiple logistic regression models separated by sex were fitted and a hierarchical model was fitted in three steps. Health status among elderly women was poorer than among the men for the three outcomes analysed. Whereas living with disabled people was positively related to the three health outcomes and confidant social support was negatively associated with all of them in both sexes, there were gender differences in other social determinants of health. Our results emphasise the importance of using an integrated approach for the analysis of health inequalities among elderly people, simultaneously considering socio-economic position, family characteristics and social support, as well as different health indicators, in order fully to understand the social determinants of the health status of older men and women.
Local star formation triggered by SN shocks in magnetized diffuse neutral clouds
Authors: Leão M. R. M. , de Gouveia Dal Pino E. M. , Falceta-Gonçalves D. , Melioli C. , Geraissate F. G. 
Published: April 2009

AbstractConsidering that the main source of turbulence in the ISM medium are the explosions of supernovae (SNe), we explore here the role of SN shock front interactions with clouds on the star formation triggering in presence and in absence of magnetic field.
Magnetic reconnection and energy release on the Sun and solar-like stars
Authors: van Driel-Gesztelyi Lidia 
Published: April 2009

AbstractMagnetic reconnection is thought to play an important role in liberating free energy stored in stressed magnetic fields. The consequences vary from undetectable nanoflares to huge flares, which have signatures over a wide wavelength range, depending on e.g. magnetic topology, free energy content, total flux, and magnetic flux density of the structures involved. Events of small energy release, which are thought to be the most numerous, are one of the key factors in the existence of a hot corona in the Sun and solar-like stars. The majority of large flares are ejective, i.e. involve the expulsion of large quantities of mass and magnetic field from the star. Since magnetic reconnection requires small length-scales, which are well below the spatial resolution limits of even the solar observations, we cannot directly observe magnetic reconnection happening. However, there is a plethora of indirect evidences from X-rays to radio observations of magnetic reconnection. I discuss key observational signatures of flares on the Sun and solar-paradigm stellar flares and describe models emphasizing synergy between observations and theory.
Near-surface stellar magneto-convection: simulations for the Sun and a metal-poor solar analog
Authors: Steffen Matthias , Ludwig H.-G. , Steiner O. 
Published: April 2009

AbstractWe present 2D local box simulations of near-surface radiative magneto-convection with prescribed magnetic flux, carried out with the MHD version of the CO5BOLD code for the Sun and a solar-like star with a metal-poor chemical composition (metal abundances reduced by a factor 100, [M/H] = −2). The resulting magneto-hydrodynamical models can be used to study the influence of the metallicity on the properties of magnetized stellar atmospheres. A preliminary analysis indicates that the horizontal magnetic field component tends to be significantly stronger in the optically thin layers of metal-poor stellar atmospheres.
3D reconstruction of solar magnetoacoustic waves
Authors: Popescu Adrian Sabin 
Published: April 2009

AbstractUsing a new multi-wavelength technique applied on the solar corona SOHO/EIT images containing magnetoacoustic waves (EIT waves), we constrain the wave phase velocity and, as well, some β-model, height related considerations for the vertical extent of the wave, applied on the particular EIT wave triggered by the eruptive event from 15th of August, 2001.
Starspots: signatures of stellar magnetic activity
Authors: Strassmeier Klaus G. 
Published: April 2009

AbstractStarspots, just as Sunspots, are among the most obvious tracers and signatures of stellar surface magnetic activity. Emphasized already several decades ago as the origin for the rotationally modulated brightness of cool late-type stars, it is just now that we start to trace individual surface features in great enough detail to understand their magnetic behavior and interaction. Starspots also became the most important “noise” for detecting extra-solar planets and could possibly be decisive when it comes to detect another Earth. Since this is not a review, and because indirect imaging techniques are covered in other papers in this volume, I focus in this paper on some specific detections of starspots and introduce four new facilities particularly suited for starspot research in the near future.
Search for the magnetic field of the O7.5 III star ξ Persei
Authors: Henrichs Huib F. , Schnerr R. S. , de Jong J. A. , Kaper L. , Donati J.-F. , Catala C. 
Published: April 2009

AbstractCyclical wind variability is an ubiquitous but as yet unexplained feature among OB stars. The O7.5 III(n)((f)) star ξ Persei is the brightest representative of this class on the Northern hemisphere. As its prominent cyclical wind properties vary on a rotational time scale (2 or 4 days) the star has been already for a long time a serious magnetic candidate. As the cause of this enigmatic behavior non-radial pulsations and/or a surface magnetic field are suggested. We present a preliminary report on our attempts to detect a magnetic field in this star with high-resolution measurements obtained with the spectropolarimeter Narval at TBL, France during 2 observing runs of 5 nights in 2006 and 5 nights in 2007. Only upper limits could be obtained, even with the longest possible exposure times. If the star hosts a magnetic field, its surface strength should be less than about 300 G. This would still be enough to disturb the stellar wind significantly. From our new data it seems that the amplitude of the known non-radial pulsations has changed within less than a year, which needs further investigation.
Magnetic observations of pulsating B and Be stars with ESPaDOnS and Narval
Authors: Silvester James , Neiner C. , Henrichs H. F. , Wade G. A. , Alecian E. , Petit V. 
Published: April 2009

AbstractDiscoveries of magnetic fields in pulsating B and Be stars have been claimed from low-resolution spectropolarimetric observations with FORS1 at VLT. We used the new generation of high-resolution spectropolarimeters, ESPaDOnS at CFHT and NARVAL at TBL, to check for the existence of these fields. We find that most of the claimed magnetic stars do not host a magnetic field. This work shows the importance of a critical analysis of FORS1 data when searching for weak magnetic fields in early-type stars and the advantage of using ESPaDOnS and NARVAL to study such type of stars.
Fossil fields in early stellar evolution
Authors: Arlt Rainer 
Published: April 2009

AbstractFavored explanations for the presence of magnetic fields on CP stars and the presence of the solar tachocline below the convection zone both imply fossil magnetic fields in the radiative zones. The initial, convective evolution of magnetic fields in a proto-star is studied by numerical, global simulations. The computations are to be extended by a change of the convection zone depth on an evolutionary time-scale.
What do we really know about the magnetic fields of the Milky Way?
Authors: Wielebinski Richard 
Published: April 2009

AbstractWe have several methods of measuring magnetic fields in the Milky Way. We can study optical polarization, radio polarization, rotation measures of pulsars and extragalactic radio sources as well as include Zeeman results. Each of the above mentioned methods was at times used to make a model of the magnetic fields of the Milky Way. However one or two of the data sets by themselves cannot tell us the whole story. Any model of the magnetic fields must be able to fit all the observational results. At the present time a lot of progress has been made. We have increased our data bases in most of the observational areas. However a robust model of the magnetic field of the Milky Way has not yet emerged. We must possibly wait to the era of SKA.
Magnetic fields in the early Universe
Authors: Battaner Eduardo , Florido Estrella 
Published: April 2009

AbstractThere is increasing evidence that intense magnetic fields exist at large redshifts. They could arise after galaxy formation or in very early processes, such as inflation or cosmological phase transitions, or both. Early co-moving magnetic strengths in the range 1-10 nG could be present at recombination. The possibilities to detect them in future CMB experiments are discussed, mainly considering their impact in the anisotropy spectra as a result of Faraday rotation and Alfven waves. Magnetic fields this magnitude could also have a non-negligible influence in determining the filamentary large scale structure of the Universe.
MHD simulations of cool core clusters
Authors: Stasyszyn Frederico , Dolag Klaus 
Published: April 2009

AbstractUsing Smoothed Particle Magneto Hydrodynamics (Dolag & Stasyszyn), we study the effects of magnetic fields in galaxy clusters with the aim to infer their dynamical role within the cool core region. Therefore we we investigate the role of regularization as well as divergence cleaning schemes (Stasyszyn & Dolag 2009). We run cosmological simulations of a reference cluster in order to evaluate our various implementation in a realistic scenario. The preliminary results indicate that the final magnetic field profile in the simulations depends only on the amount of artificial dissipation, but not in the amount of numerical div(B) present in the different implementation. We also present first results from simulations which are including radiative cooling and star formation. Even at the this low resolution we find a strong additional amplification of the magnetic field within the cool core region indicating that magnetic pressure could become comparable to the thermal pressure in theses regimes.
MHD numerical simulations of Perseus A: formation of filaments and magnetic loops
Authors: Falceta-Gonçalves Diego , de Gouveia dal Pino E. M. , Gallagher J. , Lazarian A. 
Published: April 2009

AbstractThe Perseus Cluster (A426) is the brightest cluster of galaxies observed in X-rays in the sky and its giant central galaxy (NGC1275) hosts the extended double radio source 3C84. There is a spectacular H-alpha nebulosity surrounding NGC1275 with loops and filaments that are probably magnetized and extend over 100 kpc. The continuous blowing of bubbles leading to the propagation of shock fronts is also evident and more recently, outflow and infall velocities of several 1000 km/s have been detected associated to the surrounding filaments. We here present preliminary results of 2.5D MHD simulations of the Perseus cluster central region assuming that the production of the outflow structures and loops that arise from the surface of NGC1275 are due to turbulent injection triggered by recent star formation and SNe activity in the galaxy. This is in turn, probably induced by a continuous gas infall from the satellite galaxies around NGC1275. Our simulations which include both, the turbulent gas outflow and gas infall from the surroundings, have revealed a continuous formation of the observed features, like the filaments, the gigantic magnetic loops and weak shock fronts that propagate into the ICM medium with the observed velocities of 1000–5000 km/s. After 10 Myr, a nearly steady state is established between the outflow material emerging from the central galaxy and the inflow gas from the surrounds. The outflow activity seems to retard the cannibalism action of the central galaxy over the surrounding galaxies. This result may have important implications over the evolution of the whole cluster as it seems to indicate that the SF and SNe production that are induced by the cannibalism may help to decelerate the later due to turbulence and outflow production. These results also offer important clues to the hot halo formation in the center of the cluster and in the suppression of cooling flows.
Zeeman-Doppler imaging: old problems and new methods
Authors: Carroll Thorsten A. , Kopf Markus , Strassmeier Klaus G. , Ilyin Ilya 
Published: April 2009

AbstractZeeman-Doppler Imaging (ZDI) is a powerful inversion method to reconstruct stellar magnetic surface fields. The reconstruction process is usually solved by translating the inverse problem into a regularized least-square or optimization problem. In this contribution we will emphasize that ZDI is an inherent non-linear problem and the corresponding regularized optimization is, like many non-linear problems, potentially prone to local minima. We show how this problem will be exacerbated by using an inadequate forward model. To facilitate a more consistent full radiative transfer driven approach to ZDI we describe a two-stage strategy that consist of a principal component analysis (PCA) based line profile reconstruction and a fast approximate polarized radiative transfer method to synthesize local Stokes profiles. Moreover, we introduce a novel statistical inversion method based on artificial neural networks (ANN) which provide a fast calculation of a first guess model and allows to incorporate better physical constraints into the inversion process.
Effects of turbulence on magnetic reconnection: 3D numerical simulations
Authors: Otmianowska-Mazur Katarzyna , Kowal G. , Lazarian A. , Vishniac E. 
Published: April 2009

AbstractTurbulent reconnection is studied by means of three dimensional (3D) compressible magnetohydrodynamical numerical calculations. The process of homogeneous turbulence is set up by adding three-dimensional solenoidal random forcing implemented in the spectral space at small wave numbers with no correlation between velocity and forcing. We apply the initial Harris current sheet configuration together with a density profile calculated from the numerical equilibrium of magnetic and gas pressures. We assume that there is no external driving of the reconnection. The reconnection develops as a result of the initial vector potential perturbation. We use open boundary conditions. Our main goal is to find the dependencies of reconnection rate on different properties of turbulence. The results of our simulations show that turbulence significantly affects the topology of magnetic field near the diffusion region. We present that the reconnection speed does not depend on the Reynolds numbers as well the magnetic diffusion. In addition, a fragmentation of current sheet decreases the disparity in inflow/outflow ratios. When we apply the large scale and more powerful turbulence the reconnection is faster.