8,587 research outputs found

    Approaches to the storage of low use and last copy research materials

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    A scoping review of gaps and priorities in dementia care in Europe

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    Dementia is a widely recognized public health priority due to the increasing number of people living with the condition and its attendant health, social and economic costs. Delivering appropriate care is a challenge in many countries in Europe contributing to unmet needs of people living with dementia. Acute hospital settings are often the default route in pursuit for dementia care due to the lack of or limited knowledge of local service provisions. The care environment and the skillsets in acute hospitals do not fully embrace the personhood necessary in dementia care. Predictions of an exponential increase in people living with dementia in the coming 30 years require evidence based strategies for advancing dementia care and maximizing independent living. However, the evidence required to inform priorities for enabling improvements in dementia care is rarely presented in a way that stimulates and sustains political interests. This scoping review of the literature drew on principles of meta-ethnography to clarify the gaps and priorities in dementia care in Europe. The review constituted eight papers (n=8) and a stakeholder consultation involving three organizations implementing dementia care programs in Europe comprising: Emmaus Elderly Care and Residential Care Holy Heart in Belgium and ZorgSaam in the Netherlands. Overarching concepts of gaps identified include fragmented non person centered care pathways, the culture of dementia care, limited knowledge and skills, poor communication and information sharing and ineffective healthcare policies. Key areas distinguished from the literature for narrowing the gaps to improve care experiences and the support for people living with dementia care encompass person centered care, integrated care pathways and healthcare workforce development. Action for advancing care and maximizing independent living needs to go beyond mere inclusions on political agendas to incorporate a shift in health and social care policies to address the needs of people living with dementia. Key words Dementia care, care priorities, gaps in car

    Gamble mode: Resonance contact mode in atomic force microscopy

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    Active noise reduction has been accomplished in atomic force microscopy by applying a high frequency, low amplitude vibration to the cantilever while it is in contact with a surface. The applied excitation (>~ 200 kHz; ~ 1 nm) is acoustically coupled to the tip and dampens the resonance Q factors of the system. The applied frequency is well above the bandwidth of the acquisition system (50 kHz). We call this mode "gamble mode" or "resonance contact.

    Noise reduction in atomic force microscopy: Resonance contact mode

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    Noise reduction has been accomplished in atomic force microscopy by applying a high frequency, low amplitude vibration to the cantilever while it is in contact with a surface. The applied excitation (>~200 kHz; ~1 nm) is acoustically coupled to the tip and dampens the resonance Q factors of the system. The applied frequency is well above the bandwidth of the acquisition system (50 kHz). We call this mode "resonance contact" mode. The nonlinear behavior of the tip–sample interaction allows the high frequency excitation to effectively broaden the frequency response of the system resonances

    The role of alcohol response phenotypes in the risk for alcohol use disorder

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    Heavy alcohol use is pervasive and one of our most significant global health burdens. Early theories posited that certain alcohol response phenotypes, notably low sensitivity to alcohol (‘low-level response’) imparts risk for alcohol use disorder (AUD). However, other theories, and newer measures of subjective alcohol responses, have challenged that contention and argued that high sensitivity to some alcohol effects are equally important for AUD risk. This study presents results of a unique longitudinal study in 294 young adult non-dependent drinkers examined with alcohol and placebo testing in the laboratory at initial enrolment and repeated 5 years later, with regular follow-up intervals assessing AUD (trial registration: http://clinicaltrials.gov/ct2/show/NCT00961792). Findings showed that alcohol sedation was negatively correlated with stimulation across the breath alcohol curve and at initial and re-examination testing. A higher rather than lower alcohol response phenotype was predictive of future AUD. The findings underscore a new understanding of factors increasing vulnerability to AUD

    Topological Phase Transitions and Holonomies in the Dimer Model

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    We demonstrate that the classical dimer model defined on a toroidal hexagonal lattice acquires holonomy phases in the thermodynamic limit. When all activities are equal the lattice sizes must be considered mod 6 in which case the finite size corrections to the bulk partition function correspond to a massless Dirac Fermion in the presence of a flat connection with nontrivial holonomy. For general bond activities we find that the phase transition in this model is a topological one, where the torus degenerates and its modular parameter becomes real at the critical temperature. We argue that these features are generic to bipartite dimer models and we present a more general lattice whose continuum partition function is that of a massive Dirac Fermion.Comment: 7 pages, 4 figures. Minor corrections with additional figure

    The Specific Heat of a Ferromagnetic Film.

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    We analyze the specific heat for the O(N)O(N) vector model on a dd-dimensional film geometry of thickness LL using ``environmentally friendly'' renormalization. We consider periodic, Dirichlet and antiperiodic boundary conditions, deriving expressions for the specific heat and an effective specific heat exponent, \alpha\ef. In the case of d=3d=3, for N=1N=1, by matching to the exact exponent of the two dimensional Ising model we capture the crossover for \xi_L\ra\infty between power law behaviour in the limit {L\over\xi_L}\ra\infty and logarithmic behaviour in the limit {L\over\xi_L}\ra0 for fixed LL, where ξL\xi_L is the correlation length in the transverse dimensions.Comment: 21 pages of Plain TeX. Postscript figures available upon request from [email protected]

    Dimensional Crossover in the Large N Limit

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    We consider dimensional crossover for an O(N)O(N) Landau-Ginzburg-Wilson model on a dd-dimensional film geometry of thickness LL in the large NN-limit. We calculate the full universal crossover scaling forms for the free energy and the equation of state. We compare the results obtained using ``environmentally friendly'' renormalization with those found using a direct, non-renormalization group approach. A set of effective critical exponents are calculated and scaling laws for these exponents are shown to hold exactly, thereby yielding non-trivial relations between the various thermodynamic scaling functions.Comment: 25 pages of PlainTe

    Dynamics and Gravitational Wave Signature of Collapsar Formation

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    We perform 3+1 general relativistic simulations of rotating core collapse in the context of the collapsar model for long gamma-ray bursts. We employ a realistic progenitor, rotation based on results of stellar evolution calculations, and a simplified equation of state. Our simulations track self-consistently collapse, bounce, the postbounce phase, black hole formation, and the subsequent early hyperaccretion phase. We extract gravitational waves from the spacetime curvature and identify a unique gravitational wave signature associated with the early phase of collapsar formation
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