Microaggressions in neurorehabilitation

Ethnic minorities often report poorer experiences of health care services. One factor is thought to be related to the Eurocentricity of services which can lead to unconscious biases, sometimes in the form of racial microaggressions. These are found to be related to anxiety, anger, distress, and depression. Exposure to these in services can lead to mistrust including reduced help-seeking behaviours and poorer health outcomes. The review explores the experiences of microaggressions in health care settings and the impact of this on service users. A review of the literature found 17 American and Canadian based articles that met the inclusion criteria. The papers were quality assessed and an integrative systematic review was conducted. Three main categories were identified: The measurement of racial microaggressive experiences (e.g., studies used either quantitative questionnaires and/or qualitative methods), impacts of microaggressions in care settings (this was measured through questionnaires such as client satisfaction and psychological wellbeing etc), and the types of microaggressive experiences, which identified common themes of microaggressions in questionnaires and qualitative responses. Clinical implications include the need for clinicians to become more aware of biases, to help generate more inclusive clinical practices that are culturally sensitive to help meet the needs of individuals from ethnically minoritised backgrounds. Research implications include the need to explore the experiences of microaggressions in health care settings in the UK and moving away from using self-report measures to explore microaggressive experiences

Conformal dimension and random groups

We give a lower and an upper bound for the conformal dimension of the boundaries of certain small cancellation groups. We apply these bounds to the few relator and density models for random groups. This gives generic bounds of the following form, where $l$ is the relator length, going to infinity. (a) 1 + 1/C < \Cdim(\bdry G) < C l / \log(l), for the few relator model, and (b) 1 + l / (C\log(l)) < \Cdim(\bdry G) < C l, for the density model, at densities $d < 1/16$. In particular, for the density model at densities $d < 1/16$, as the relator length $l$ goes to infinity, the random groups will pass through infinitely many different quasi-isometry classes.Comment: 32 pages, 4 figures. v2: Final version. Main result improved to density < 1/16. Many minor improvements. To appear in GAF

A New Family of Planets ? "Ocean Planets"

A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: "Ocean-Planets". We present the possible formation, composition and internal models of these putative planets, including that of their ocean, as well as their possible Exobiology interest. These planets should be detectable by planet detection missions such as Eddington and Kepler, and possibly COROT (lauch scheduled in 2006). They would be ideal targets for spectroscopic missions such as Darwin/TPF.Comment: 15 pages, 3 figures submitted to Icarus notes (10 july 2003

Жидкосолевой электроядерный реактор в структуре атомной энергетики Украины

Рассмотрены теоретические основы и рассчитаны параметры подкритического жидкосолевого электроядерного реактора с ускорителем протонов на энергию порядка 300 МэВ, для которого топливом является торий, уран, плутоний и трансурановые элементы из отработавшего топлива АЭС.Розглянуто теоретичні основи і розраховані параметри підкритичного рідкосольового електроядерного реактора з прискорювачем протонів на енергію порядку 300 МеВ, для якого паливом є торій, уран, плутоній і трансуранові елементи з палива, що відробило АЕС.It is considered theoretical bases and calculated subcritical molten salt electronuclear reactor parameters with proton accelerator on 300 MeV energy for which thorium, uranium, plutonium and transuranium elements from AES fuel wastes

Vesignieite: a S=12S = \frac{1}{2} kagome antiferromagnet with dominant third-neighbor exchange

The spin-$\frac{1}{2}$ kagome antiferromagnet is an archetypal frustrated system predicted to host a variety of exotic magnetic states. We show using neutron scattering measurements that deuterated vesignieite BaCu$_{3}$V$_{2}$O$_{8}$(OD)$_{2}$, a fully stoichiometric $S=1/2$ kagome magnet with $<$1% lattice distortion, orders magnetically at $T_{\mathrm{N}}=9$K into a multi-k coplanar variant of the predicted triple-k octahedral structure. We find this structure is stabilized by a dominant antiferromagnetic 3$^{\mathrm{rd}}$-neighbor exchange $J_3$ with minor 1$^{\mathrm{st}}$- or 2$^{\mathrm{nd}}$--neighbour exchange. The spin-wave spectrum is well described by a $J_3$-only model including a tiny symmetric exchange anisotropy

Magnetic relaxation studies on a single-molecule magnet by time-resolved inelastic neutron scattering

Time-resolved inelastic neutron scattering measurements on an array of single-crystals of the single-molecule magnet Mn12ac are presented. The data facilitate a spectroscopic investigation of the slow relaxation of the magnetization in this compound in the time domain.Comment: 3 pages, 4 figures, REVTEX4, to appear in Appl. Phys. Lett., for an animation see also http://www.dcb.unibe.ch/groups/guedel/members/ow2/trins.ht

Superfluid 4He dynamics beyond quasiparticle excitations

The dynamics of superfluid 4He at and above the Landau quasiparticle regime is investigated by high precision inelastic neutron scattering measurements of the dynamic structure factor. A highly structured response is observed above the familiar phonon-maxon-roton spectrum, characterized by sharp thresholds for phonon-phonon, maxon-roton and roton-roton coupling processes. The experimental dynamic structure factor is compared to the calculation of the same physical quantity by a Dynamic Many-body theory including three-phonon processes self-consistently. The theory is found to provide a quantitative description of the dynamics of the correlated bosons for energies up to about three times that of the Landau quasiparticles.Comment: 5 pages, 3 figure

Escherichia coli K88 adhesion: A comparison of Chinese and Large White piglets

A comparative trial was performed on 15 Large White and 12 Chinese germ-free, colostrumdeprived piglets, maintained in plastic film isolators. Shortly after successive oral inoculations of 2 E. coli strains, one K88-positive and one K88-negative, the piglets were sacrificed and bacterial numerations of the 2 strains were done on 3 different intestinal segments of each pig, using both the lumen content and the washed intestinal wall. The percentage of bacteria specifically bound to the intestinal wall was estimated, and the presence or absence of the piglet K88 intestinal receptor was thus inferred. The results tended to indicate that the 12 Chinese piglets lacked this receptor, as against 7 Large White’s. This raises the question of possible breed differences in resistance to this type of colibacillosis.Un essai comparatif a été réalisé sur 15 porcelets Large White et 12 porcelets Chinois, prélevés à la naissance de manière axénique, privés de colostrum et placés en isolateur sous film plastique. Après inoculation par voie orale de 2 souches de E. coli, l’une possédant l’antigène d’attachement K88 (K88+)l’autre dépourvue de cet antigène (K88-), les porcelets sont sacrifiés et 3 segments différents de l’intestin grêle sont prélevés sur chaque porcelet en vue de numérations des 2 souches bactériennes, à la fois dans le contenu intestinal et sur la paroi. Le pourcentage de bactéries spécifiquement attachées à la paroi est ainsi estimé et la présence ou l’absence chez le porcelet du récepteur intestinal K88 peut en être déduite. Les résultats indiquent que les 12 porcelets Chinois ne possèdent pas ce récepteur et doivent donc être résistants à l’attachement de K88, contre 7 porcelets Large White. Cela soulève la question de l’existence possible de races résistantes à cette colibacillose