The \u201cHarmonic Walk\u201d and Enactive Knowledge: an Assessment Report

The Harmonic Walk is an interactive, physical environment based on user\u2019s motion detection and devoted to the study and practice of tonal harmony. When entering the rectangular floor surface within the application\u2019s camera view, a user can actually walk inside the musical structure, causing a sound feedback depending on the occupied zone. We arranged a two masks projection set up to allow users to experience melodic segmentation and tonality harmonic space, and we planned two phase assessment sessions, submitting a 22 high school student group to various test conditions. Our findings demonstrate the high learning effectiveness of the Harmonic Walk application. Its ability to transfer abstract concepts in an enactive way, produces important improvement rates both for subjects who received explicit information and for subjects who didn\u2019t

Life, the Law and the Politics of Abandonment: Everyday Geographies of the Enclaves in India and Bangladesh

This PhD strives to understand what roles politico-spatial-legality play in shaping everyday life in the enclaves located in the northwest borderland curve in the India-Bangladesh border. Conceptually and legally, an enclave is a fragmented territory of one sovereign power located inside another sovereign territory. Following the decolonisation process in 1947, both India and Pakistan/Bangladesh inherited more than 200 enclaves. By investigating an everyday geography of the politico-spatial-legality in Indian and Bangladeshi enclaves, the aim of this thesis is to understand how the long existence of these enclaves shape their residents’ everyday lives. This thesis examines four research questions – i) how do the politico-spatial-legal factors shape citizenship in the enclaves? ii) What role(s) do boundaries perform in everyday life in the enclaves? iii) What are the (il)legal-political vulnerabilities present in the enclaves? And iv) What are the (il)legal survival methods adopted by the enclave residents’? The whole research is based on a seven-month ethnographic account in six enclaves and short visits (one day in each enclave) to another twenty enclaves during the pilot study in India and Bangladesh. The field sites were selected based on enclave size, distance from the border, practice of religion and relationship with the concerned states. The ethnography involved observing mundane events at different periods of time in different segments of the enclaves and nearby borderlands, and participating in local gathering in tea stalls, women’s evening socialisation and other social events. 55 in-depth interviews with the enclave residents and 10 interviews with the state officials were conducted for a detailed understanding of personal experiences and negotiations, and state perspectives on the enclave matter respectively. The thesis reveals that the enclave residents live in a non citizenship status, and the border is experienced in myriad ways in the enclaves constituting politico-juridical, social and gendered forms of bare life. On the other hand, the enclave dwellers find ways of attempting to cope with such circumstances and try to survive and advance their life through the loopholes of the state-system. The approach adopted in this thesis to study enclaves through the framework of politico-spatial-legality interactions is expected to advance enclave research. In addition, the thesis contributes to the academic literatures on citizenship and abandonment, border, bare life and rhythms of survival tactics. At policy level, the thesis can help policy makers understand ground vulnerabilities and difficult lives in the enclaves as there is very little government work available on enclave life

Full nonperturbative QCD simulations with 2+1 flavors of improved staggered quarks

Dramatic progress has been made over the last decade in the numerical study of quantum chromodynamics (QCD) through the use of improved formulations of QCD on the lattice (improved actions), the development of new algorithms and the rapid increase in computing power available to lattice gauge theorists. In this article we describe simulations of full QCD using the improved staggered quark formalism, ``asqtad'' fermions. These simulations were carried out with two degenerate flavors of light quarks (up and down) and with one heavier flavor, the strange quark. Several light quark masses, down to about 3 times the physical light quark mass, and six lattice spacings have been used. These enable controlled continuum and chiral extrapolations of many low energy QCD observables. We review the improved staggered formalism, emphasizing both advantages and drawbacks. In particular, we review the procedure for removing unwanted staggered species in the continuum limit. We then describe the asqtad lattice ensembles created by the MILC Collaboration. All MILC lattice ensembles are publicly available, and they have been used extensively by a number of lattice gauge theory groups. We review physics results obtained with them, and discuss the impact of these results on phenomenology. Topics include the heavy quark potential, spectrum of light hadrons, quark masses, decay constant of light and heavy-light pseudoscalar mesons, semileptonic form factors, nucleon structure, scattering lengths and more. We conclude with a brief look at highly promising future prospects.Comment: 157 pages; prepared for Reviews of Modern Physics. v2: some rewriting throughout; references update

2d Model Field Theories at Finite Temperature and Density

In certain 1+1 dimensional field theoretic toy models, one can go all the way from microscopic quarks via the hadron spectrum to the properties of hot and dense baryonic matter in an essentially analytic way. This "miracle" is illustrated through case studies of two popular large N models, the Gross-Neveu and the 't Hooft model - caricatures of the Nambu-Jona-Lasinio model and real QCD, respectively. The main emphasis will be on aspects related to spontaneous symmetry breaking (discrete or continuous chiral symmetry, translational invariance) and confinement.Comment: 90 pages, 27 figures, Contribution to the Festschrift in honor of Boris Ioffe, edited by M. Shifma

Strong Couplings of X(3872)_{J=1,2} and a New Look at J/psi Suppression in Heavy Ion Collisions

We define and compute from data the strong couplings of the X(3872) with both of the possible quantum numbers assignments J^{PC}=1^{++},2^{-+}. We use these to compute cross sections for J/psi resonance scattering into D Dbar*. As an application of the results obtained we revise the calculation of the J/psi absorption in a hot hadron gas to confront with recent RHIC observations in Au-Au collisions.Comment: 23 pages, 18 figures, 4 table

Data analysis techniques: a tool for cumulative exposure assessment.

International audienceEveryone is subject to environmental exposures from various sources, with negative health impacts (air, water and soil contamination, noise, etc.or with positive effects (e.g. green space). Studies considering such complex environmental settings in a global manner are rare. We propose to use statistical factor and cluster analyses to create a composite exposure index with a data-driven approach, in view to assess the environmental burden experienced by populations. We illustrate this approach in a large French metropolitan area. The study was carried out in the Great Lyon area (France, 1.2 M inhabitants) at the census Block Group (BG) scale. We used as environmental indicators ambient air NO2 annual concentrations, noise levels and proximity to green spaces, to industrial plants, to polluted sites and to road traffic. They were synthesized using Multiple Factor Analysis (MFA), a data-driven technique without a priori modeling, followed by a Hierarchical Clustering to create BG classes. The first components of the MFA explained, respectively, 30, 14, 11 and 9% of the total variance. Clustering in five classes group: (1) a particular type of large BGs without population; (2) BGs of green residential areas, with less negative exposures than average; (3) BGs of residential areas near midtown; (4) BGs close to industries; and (5) midtown urban BGs, with higher negative exposures than average and less green spaces. Other numbers of classes were tested in order to assess a variety of clustering. We present an approach using statistical factor and cluster analyses techniques, which seem overlooked to assess cumulative exposure in complex environmental settings. Although it cannot be applied directly for risk or health effect assessment, the resulting index can help to identify hot spots of cumulative exposure, to prioritize urban policies or to compare the environmental burden across study areas in an epidemiological framework.Journal of Exposure Science and Environmental Epidemiology advance online publication, 24 September 2014; doi:10.1038/jes.2014.66