Global experts 'off radar'

This issue of ABE Journal, which takes inspiration from a 2008 conference session as well as from the many conversations that took place within one of the working groups of the European funded COST-action “European Architecture beyond Europe,”1 seeks to contribute to a more thorough understanding of a particular type of professional who emerged in architecture and planning milieus from 1945 onwards: the “global expert”. Through a series of contributions, some resulting from long-lasting, in-depth study while others draw on work-in-progress research, a number of individuals are brought to the fore who, despite their often extensive production or prominent roles on a global scale, have remained “off the radar”. Included in this issue are discussions pertaining to people such as Michel Kalt, Henri-Jean Calsat, David Oakley, Erica Mann, or Max Lock, as well as other, more well-known figures such as Louis Kahn, Jacqueline Tyrwhitt and Hassan Fathy. Through this variety, this ABE-journal issue stresses the need to distinguish between various types of such “global experts”, from embedded practitioners to foreign consultants just passing through. More importantly, the issue also seeks to outline some of the challenges confronting architectural historians in writing the history of this new kind of professional. This is done explicitly in the lengthy editorial, which, through a discussion of recent literature, serves as an introduction to the current state of research on the theme. As such, we hope that this issue will help set a possible research agenda on a topic that in the last several years has triggered scholarly attention, yet still requires a sound theoretical and methodological framing

A QCD chiral critical point at small chemical potential: is it there or not?

For a QCD chiral critical point to exist, the parameter region of small quark masses for which the finite temperature transition is first-order must expand when the chemical potential is turned on. This can be tested by a Taylor expansion of the critical surface (m_{u,d},m_s)_c(mu). We present a new method to perform this Taylor expansion numerically, which we first test on an effective model of QCD with static, dense quarks. We then present the results for QCD with 3 degenerate flavors. For a lattice with N_t=4 time-slices, the first-order region shrinks as the chemical potential is turned on. This implies that, for physical quark masses, the analytic crossover which occurs at mu=0 between the hadronic and the plasma regimes remains crossover in the mu-region where a Taylor expansion is reliable, i.e. mu less than or similar to T. We present preliminary results from finer lattices indicating that this situation persists, as does the discrepancy between the curvature of T_c(m_c(mu=0),mu) and the experimentally observed freeze-out curve.Comment: 14 pages, contribution to Lattice 2007 proceedings; more typos correcte

Feeling right is feeling good: psychological well-being and emotional fit with culture in autonomy- versus relatedness-promoting situations.

The current research tested the idea that it is the cultural fit of emotions, rather than certain emotions per se, that predicts psychological well-being. We reasoned that emotional fit in the domains of life that afford the realization of central cultural mandates would be particularly important to psychological well-being. We tested this hypothesis with samples from three cultural contexts that are known to differ with respect to their main cultural mandates: a European American (N = 30), a Korean (N = 80), and a Belgian sample (N = 266). Cultural fit was measured by comparing an individual's patterns of emotions to the average cultural pattern for the same type of situation on the Emotional Patterns Questionnaire (De Leersnyder et al., 2011). Consistent with our hypothesis, we found evidence for "universality without uniformity": in each sample, psychological well-being was associated with emotional fit in the domain that was key to the cultural mandate. However, cultures varied with regard to the particular domain involved. Psychological well-being was predicted by emotional fit (a) in autonomy-promoting situations at work in the U.S., (b) in relatedness-promoting situations at home in Korea, and (c) in both autonomy-promoting and relatedness-promoting situations in Belgium. These findings show that the experience of culturally appropriate patterns of emotions contributes to psychological well-being. One interpretation is that experiencing appropriate emotions is itself a realization of the cultural mandates

Combinatorics and Geometry of Transportation Polytopes: An Update

A transportation polytope consists of all multidimensional arrays or tables of non-negative real numbers that satisfy certain sum conditions on subsets of the entries. They arise naturally in optimization and statistics, and also have interest for discrete mathematics because permutation matrices, latin squares, and magic squares appear naturally as lattice points of these polytopes. In this paper we survey advances on the understanding of the combinatorics and geometry of these polyhedra and include some recent unpublished results on the diameter of graphs of these polytopes. In particular, this is a thirty-year update on the status of a list of open questions last visited in the 1984 book by Yemelichev, Kovalev and Kravtsov and the 1986 survey paper of Vlach.Comment: 35 pages, 13 figure

A surprise with many-flavor staggered fermions in the strong coupling limit

It is widely believed that chiral symmetry is spontaneously broken at zero temperature in the strong coupling limit of staggered fermions, for any number of colors and flavors. Using Monte Carlo simulations, we show that this conventional wisdom, based on a mean-field analysis, is wrong. For sufficiently many fundamental flavors, chiral symmetry is restored via a bulk, first-order transition. This chirally symmetric phase appears to be analytically connected with the expected conformal window of manyflavor continuum QCD. We perform simulations in the chirally symmetric phase at zero quark mass for various system sizes L, and measure the torelon mass and the Dirac spectrum. We find that all observables scale with L, which is hence the only infrared length scale. Thus, the strong-coupling chirally restored phase appears as a convenient laboratory to study IR-conformality. Finally, we present a conjecture for the phase diagram of lattice QCD as a function of the bare coupling and the number of quark flavors

Towards diagnosis of rotator cuff tears in 3-D MRI using 3-D convolutional neural networks

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