Biomedical radiation detecting probe Patent

Silicon radiation detecting probe design for in vivo biomedical us

Nonlinear optimal guidance algorithms Interim report

Nonlinear optimal guidance algorithms for space mission

The development and properties of the support needs questionnaire

Abstract: The Support Needs Questionnaire (SNQ) measures the support people with severe mental illness need to attain valued social roles as a route to social inclusion. Its design derives from Wolfensberger’s Social Role Valorisation theory. It is a clinical tool comprising a comprehensive lifestyle inventory of “universal basic” and “disability” needs; and ‘revalorisation needs’ arising from social devaluation and deep exclusion. The SNQ comprises eight discreet sub-scales based on O’Brien’s Five Service Accomplishments, the domains of which include Community Presence, Community Participation, Choice and Control, Social Roles and Respect, Skills and Competencies, and Finance. There are also two descriptive sub-scales: Physical and Mental Health. The item set was developed collaboratively with service users. This paper introduces the SNQ, its design rationale and development, and investigates aspects of its reliability, validity and utility. Care co-ordinators in a Community Mental Health Team rated eighty-two service users’ support needs at a two week interval using the SNQ, the Global Assessment Scale and the MARC-2. The SNQ is shown to have high test-retest reliability, good construct and concurrent validity, and good discriminatory power. It exhibited no floor or ceiling effects with the reference population. It could be used with a more diverse population. The descriptive sub-scales were weakest. The population profile showed moderate support was required for physical integration but high levels for social integration which is consistent with previous research. The SNQ has some good psychometric properties. Future research should address internal consistency and potential item redundancy, determine inter-rater reliability and change sensitivity

Polyimide polymers provide higher char yield for graphitic structures

Technique for manufacture of graphite composites uses high-char-forming processable polyimide resin systems to produce the graphitic matrix. Only three cyclic steps are required to yield a 99.7 percent graphite product

Polyimide polymers provide improved ablative materials

Principle heat absorption of silica-reinforced plastic ablative materials occurs from the in-depth reaction of silica with carbon to form silicon monoxide and carbon monoxide. The higher the degree of completion of this reaction, the higher the capacity of the ablative material to absorb heat

Dynamics of hadron strong production and decay

We generalize results of lattice QCD to determine the spin-dependent symmetries and factorization properties of meson production in OZI allowed processes. This explains some conjectures previously made in the literature about axial meson decays and gives predictions for exclusive decays of vector charmonia, including ways of establishing the structure of Y(4260) and Y(4325) from their S-wave decays. Factorization gives a selection rule which forbids $e^+e^- \to D^* D_2$ near threshold with the tensor meson in helicity 2. The relations among amplitudes for double charmonia production \e^+e^-\to \psi\chi_{0,1,2} are expected to differ from the analagous relations among light flavour production such as \e^+e^-\to \omega f_{0,1,2}.Comment: 13 pages; journal versio

Sea-surface circulation, sediment transport, and marine mammal distribution, Alaska continental shelf

There are no author-identified significant results in this report

The 2^-+ assignment for the X(3872)

Very recently the BaBar collaboration has put forward a claim that the X(3872) is not a 1^++ resonance, as most of the phenomenological work on the subject was relying on, but rather a 2^-+ one. We examine the consequences of this quantum number assignment for the solution of the X(3872) puzzle. The molecular interpretation appears less likely, and the conventional charmonium interpretation should be reconsidered. There are several well-known difficulties with this interpretation, to which we add a new one: the production cross section at CDF is predicted to be much smaller than that observed. We also confirm, using a relativistic string model, the conclusion from potential models that the mass of the state is not consistent with expectations. In the tetraquark interpretation the 2^-+ assignment implies a rich spectrum of partner states, although the X(3872) may be among the few which are narrow enough to be observable.Comment: 18 pages, 6 figures, 4 tables; minor style corrections. Version to appear in PR

Investigation of resin systems for improved ablative materials

Resin systems for matrix material in ablative composite for liquid rocket combustion chambers using fluorine-containing propellant