Context Preserving Focal Probes for Exploration of Volumetric Medical Datasets

During real-time medical data exploration using volume rendering, it is often difficult to enhance a particular region of interest without losing context information. In this paper, we present a new illustrative technique for focusing on a user-driven region of interest while preserving context information. Our focal probes define a region of interest using a distance function which controls the opacity of the voxels within the probe, exploit silhouette enhancement and use non-photorealistic shading techniques to improve shape depiction.187-19

Strangeness nuclear physics: a critical review on selected topics

Selected topics in strangeness nuclear physics are critically reviewed. This includes production, structure and weak decay of $\Lambda$--Hypernuclei, the $\bar K$ nuclear interaction and the possible existence of $\bar K$ bound states in nuclei. Perspectives for future studies on these issues are also outlined.Comment: 63 pages, 51 figures, accepted for publication on European Physical Journal

Determination of the Deep Inelastic Contribution to the Generalised Gerasimov-Drell-Hearn Integral for the Proton and Neutron

The virtual photon absorption cross section differences [sigma_1/2-sigma_3/2] for the proton and neutron have been determined from measurements of polarised cross section asymmetries in deep inelastic scattering of 27.5 GeV longitudinally polarised positrons from polarised 1H and 3He internal gas targets. The data were collected in the region above the nucleon resonances in the kinematic range nu < 23.5 GeV and 0.8 GeV**2 < Q**2 < 12 GeV**2. For the proton the contribution to the generalised Gerasimov-Drell-Hearn integral was found to be substantial and must be included for an accurate determination of the full integral. Furthermore the data are consistent with a QCD next-to-leading order fit based on previous deep inelastic scattering data. Therefore higher twist effects do not appear significant.Comment: 6 pages, 3 figures, 1 table, revte

Observation of a Coherence Length Effect in Exclusive Rho^0 Electroproduction

Exclusive incoherent electroproduction of the rho^0(770) meson from 1H, 2H, 3He, and 14N targets has been studied by the HERMES experiment at squared four-momentum transfer Q**2>0.4 GeV**2 and positron energy loss nu from 9 to 20 GeV. The ratio of the 14N to 1H cross sections per nucleon, known as the nuclear transparency, was found to decrease with increasing coherence length of quark-antiquark fluctuations of the virtual photon. The data provide clear evidence of the interaction of the quark- antiquark fluctuations with the nuclear medium.Comment: RevTeX, 5 pages, 3 figure

The International Society of Sport Psychology Registry (ISSP-R) ethical code for sport psychology practice

The International Society of Sport Psychology (ISSP) aims to be the leading international and inclusive organisation focused on the development of sport psychology in all regions and cultural areas of the world. In 2019 with the advent of the ISSP – Registry, a renewed need for an up-to-date code of ethics for practitioners that reflected the mission of the registry and supported the international community of sport psychology practitioners became apparent. As such, a group of 24 scholars and practitioners from North and South America, Europe, Asia, and Oceania collaboratively worked on the development of this code of ethics. Each of the 22 contributors was asked to develop a principle or a standard that could be embraced and implemented by practitioners in their country and wider geographical area of work, within the reasonable limits imposed by cultural, legal, and professional differences. Once all the contributions were received, the two first authors of the Code reviewed, modified, completed, re-organized, standardised, compiled, and finalised the final version. The edited final copy was then submitted for a cultural review to a small sub-group of contributors located in different geographical areas around the world. Once finalised, the code was presented to the ISSP Managing Council, for approval. The resulting Code of Ethics aims to embody the mission and the value of the ISSP and its Registry