Touch me not

Central Poststroke Pain syndrome (CPSP) can occur due to disruption of the somatosensory pathways of the brain at any level such as the thalamus, medulla, or cerebral cortex. It is characterized by sensory abnormalities and hyperesthesia in the part of the body correlating to the central lesion. The treatment of this pain syndrome is often difficult, and it does not usually respond to traditional analgesics. The first line of treatment is drugs aimed at lowering neuronal hyperexcitability, for example, amitriptyline or lamotrigine, with gabapentin considered a second line

“Youth as accessories”:Stakeholder Perspectives on Youth Participation in Mental Health Policymaking [Part II]

PURPOSE: To elicit stakeholder perspectives on the findings from our scoping review on youth participation in mental health policymaking, we conducted a global consultation with young people and adults directly involved in mental health policymaking. METHOD: Forty-four stakeholders from 16 countries, including 15 young people, 9 policymakers and 20 facilitators of youth participation, took part in individual interviews and/or focus groups. They were asked about how the review findings contrasted with their own experiences in mental health policymaking. The transcribed data were thematically analyzed. RESULTS: All participants viewed lived experience as valuable in identifying policy gaps. Youth pointed out that children and youth with disabilities, diverse sexual orientations, and/or gender identities were often excluded, and spoke about feelings of being an “accessory”, illustrating a lack of power-sharing in a tokenized policymaking process. Adult participants’ accounts highlighted the challenges inherent in policymaking such as the need for political knowledge and institutional time constraints. A range of cultural, socio-economic, and political barriers to youth participation, that were often context-specific, were identified. CONCLUSIONS: The diverse perspectives of stakeholders extended the review results. Based on our findings, we recommend that adults and institutions: (1) recognize lived experience as expertise in shaping mental health policies; (2) include diverse groups; (3) reduce tokenistic relationships through the creation of safer spaces, adult feedback, co-production, and social accountability; and (4) adopt an intersectional approach to address cultural, socio-economic, and political barriers to participation. Methodologically, our work demonstrates why stakeholder consultations are an essential component of scoping reviews

Desorption of hot molecules from photon irradiated interstellar ices

We present experimental measurements of photodesorption from ices of astrophysical relevance. Layers of benzene and water ice were irradiated with a laser tuned to an electronic transition in the benzene molecule. The translational energy of desorbed molecules was measured by time-of-flight (ToF) mass spectrometry. Three distinct photodesorption processes were identified - a direct adsorbate-mediated desorption producing benzene molecules with a translational temperature of around 1200 K, an indirect adsorbate-mediated desorption resulting in water molecules with a translational temperature of around 450 K, and a substrate-mediated desorption of both benzene and water producing molecules with translational temperatures of around 530 K and 450 K respectively. The translational temperature of each population of desorbed molecules is well above the temperature of the ice matrix. The implications for gas-phase chemistry in the interstellar medium are discussed.Comment: 23 pages, including 4 figures; submitted to Ap

Intelligent investment’? Welsh sport policy and the (in)visibility of ‘race’

In this paper, we draw on research conducted in Wales to consider reasons for participation and non-participation in sport and physical activity among Black and minoritised ethnic (BME) groups. This study exposes the challenge at the heart of sports policy in relation to ‘race’ and ethnicity in Wales that, if not addressed, may lead to the marginalisation of attempts to increase BME participation in sport and physical activity despite good intent. It points to a disjuncture between supply and demand and leads us to question the extent to which such policies resonate with the interests, needs and lived experiences of people from different BME communities in Wales. We draw on testimonies of policy-makers and implementers, as well as individuals from various BME communities in five regions of Wales, to consider the extent to which national sports policy encourages strategies to increase participation among different ethnic groups. We suggest that increasing participation among BME communities and other ‘hard-to-reach’ groups must go beyond accounting for the supply aspects of sport and physical activity to consider more critically the plethora of barriers and exclusions facing many BME communities. We conclude by arguing that for racial inequalities to be reduced, and promises such as ‘sport for all’ to be realised, the analysis of policy needs to be related to broader relations of power in the culture of both sport and society

Identification of Radiopure Titanium for the LZ Dark Matter Experiment and Future Rare Event Searches

The LUX-ZEPLIN (LZ) experiment will search for dark matter particle interactions with a detector containing a total of 10 tonnes of liquid xenon within a double-vessel cryostat. The large mass and proximity of the cryostat to the active detector volume demand the use of material with extremely low intrinsic radioactivity. We report on the radioassay campaign conducted to identify suitable metals, the determination of factors limiting radiopure production, and the selection of titanium for construction of the LZ cryostat and other detector components. This titanium has been measured with activities of $^{238}$U$_{e}$~$<$1.6~mBq/kg, $^{238}$U$_{l}$~$<$0.09~mBq/kg, $^{232}$Th$_{e}$~$=0.28\pm 0.03$~mBq/kg, $^{232}$Th$_{l}$~$=0.25\pm 0.02$~mBq/kg, $^{40}$K~$<$0.54~mBq/kg, and $^{60}$Co~$<$0.02~mBq/kg (68\% CL). Such low intrinsic activities, which are some of the lowest ever reported for titanium, enable its use for future dark matter and other rare event searches. Monte Carlo simulations have been performed to assess the expected background contribution from the LZ cryostat with this radioactivity. In 1,000 days of WIMP search exposure of a 5.6-tonne fiducial mass, the cryostat will contribute only a mean background of $0.160\pm0.001$(stat)$\pm0.030$(sys) counts.Comment: 13 pages, 3 figures, accepted for publication in Astroparticle Physic

Multiplicity Structure of the Hadronic Final State in Diffractive Deep-Inelastic Scattering at HERA

The multiplicity structure of the hadronic system X produced in deep-inelastic processes at HERA of the type ep -> eXY, where Y is a hadronic system with mass M_Y< 1.6 GeV and where the squared momentum transfer at the pY vertex, t, is limited to |t|<1 GeV^2, is studied as a function of the invariant mass M_X of the system X. Results are presented on multiplicity distributions and multiplicity moments, rapidity spectra and forward-backward correlations in the centre-of-mass system of X. The data are compared to results in e+e- annihilation, fixed-target lepton-nucleon collisions, hadro-produced diffractive final states and to non-diffractive hadron-hadron collisions. The comparison suggests a production mechanism of virtual photon dissociation which involves a mixture of partonic states and a significant gluon content. The data are well described by a model, based on a QCD-Regge analysis of the diffractive structure function, which assumes a large hard gluonic component of the colourless exchange at low Q^2. A model with soft colour interactions is also successful.Comment: 22 pages, 4 figures, submitted to Eur. Phys. J., error in first submission - omitted bibliograph