The Asymmetric Rotor. IX. The Heavy Water Bands at 2787 cm^–1 and 5373 cm^–1

The combination band (110) of the two stretching fundamentals of D2O is reported and analyzed to yield nu0=5373.2 cm^–1 and the excited state moments of inertia 1.910, 3.931, and 5.929×10^–40 g cm^2. The same method of analysis applied to the unsymmetrical fundamental band (100) envelope gives nu0=2787.5 cm^–1 and the excited state moments 1.881, 3.876, and 5.843×10^–40 g cm^2

Flower colour:Gloger's rule isn't just for the birds

A 180-year-old ‘law’ in zoology has found its best support so far in a study of floral colour, which not only documents darker plants growing closer to the equator, but also supports the idea that the colour stems from ultraviolet protection

Orientation to the sun by animals and its interaction with crypsis

1. Orientation with respect to the sun has been observed in a wide range of species and hasgenerally been interpreted in terms of thermoregulation and/or ultraviolet (UV) protection. For countershaded animals, orientation with respect to the sun may also result from the pres-sure to exploit the gradient of coloration optimally to enhance crypsis.2. Here, we use computational modelling to predict the optimal countershading pattern for anoriented body. We assess how camouflage performance declines as orientation varies using acomputational model that incorporates realistic lighting environments.3. Once an optimal countershading pattern for crypsis has been chosen, we determineseparately how UV protection/irradiation and solar thermal inflow fluctuate with orientation.4. We show that body orientations that could optimally use countershading to enhance crypsisare very similar to those that allow optimal solar heat inflow and UV protection.5. Our findings suggest that crypsis has been overlooked as a selective pressure on orientationand that new experiments should be designed to tease apart the respective roles of these different selective pressures. We propose potential experiments that could achieve this

Does Digital Gaming Enable Healthy Aging for Community-Dwelling People With Dementia?

This article critically explores the benefits of commercial digital gaming technology for healthy aging of people with dementia. Research with community-dwelling people with dementia has highlighted the need for enhanced access to nonpharmacological interventions to support social engagement. Commercially available technologies offer a means to engage people with dementia. This article expands on this body of knowledge by assessing the benefits of digital gaming on healthy aging for community-dwelling people with dementia who have participated in a series of Tech Clubs using Apple iPads, Nintendo Wii, and Nintendo DS. Findings from this study demonstrates that use of digital gaming technologies promotes lifelong learning; optimization of mental, physical, and social stimulation; and independence, all of which promote the agenda of healthy aging

Barriers to leisure participation for people with dementia and their carers: An exploratory analysis of carer and people with dementia's experiences.

Leisure has emerged as a prominent research theme within the growing body of knowledge on dementia, with a focus on physical activity. Yet participation in any form of leisure presupposes an ability to freely choose to partake in activities and to negotiate one's way around key barriers. In the case of dementia, the ability to undertake leisure activities is subject to a greater range of barriers, structured in a hierarchical manner that contributes to social exclusion if not addressed. This study based on focus groups with people with dementia and their family members conducted in Dorset, UK illustrates a range of barriers to leisure participation. How to create or maintain leisure opportunities for those living with dementia where households affected by dementia do not adopt avoidance behaviour, compounding a sense of isolation and exclusion is a challenge. Leisure can be an important strategy framed as a form of resistance to the social disabilities experienced by those living with dementia and it is potentially isolating impact

Technology, fun and games

With the advancement in technology, researchers are beginning to explore various avenues where technology can be used to support and improve the well-being of people with dementia by keeping them physically, socially and mentally active. Commercial ‘off-the-shelf’ technology appears to be a viable option as it is cheaper than more dementia-specific technology and more readily available. Preliminary research has also shown it can be effective at improving the lives of people with dementia through increased engagement, mental stimulation and social interaction (SCIE 2012, Upton 2011, Leahey & Singleton 2011, Leng et al 2013). However, further research is required to understand how this technology can be used with people with dementia within group settings. The aim of this article is to report on two technology groups commissioned by Bournemouth Borough Council and discuss our observations of using commercial technology with people with dementia within the community and an assisted living care setting

Extra care : viable for couples living with dementia?

Purpose: The perspectives of people with dementia and their care partners regarding ‘extra care’ housing are currently unknown. This paper will report findings of a consultation study exploring the perceived barriers and facilitators of a relocation to extra care housing, from the perspective of people living with dementia, and their care partners. Design/methodology/approach: Fieldwork consisted of paired or 1-1 interviews and small focus groups with potential users of an alternative model of extra care support for people living with dementia in the South of England. The consultation took place between June and August 2013. The interviews and focus groups were audio recorded, transcribed verbatim. The transcripts were analysed thematically. Findings: Benefits of extra care were identified as the opportunity for couples to remain living together for longer, creating a supportive, dementia-friendly community, and a reduction in the strain experienced by the care partners. Barriers centred on a sense of loss, stress and uncertainty. Living and caring at home was perceived as preferable to shared care. Research limitations/implications: The findings presented here have limited generalizability for two reasons. First the shared care approach consulted on was very specific. Second our participants form a purposive sample and as such are not representative of a wider population. Despite best intentions the voice of people with dementia are under reported in this consultation. Only one person with early on-set dementia was interviewed and the remaining two people with dementia were interviewed alongside their care partner. Practical implications: The findings cast doubt on the viability of extra care facilities, designed for couples living with dementia, if extra care continues to be conceptualised and marketed as a preventative lifestyle choice. The findings indicate the value of consulting with people with dementia, and their care partners, when designing new forms of housing with care specifically for people living with dementia. Originality/value: This paper contributes to the body of literature, exploring the feasibility of new and innovative alternative care and housing options, for people with dementia. This paper is one of the first to explore extra care as a housing and social care option for couples with dementia

The Dynamics of Radiative Shock Waves: Linear and Nonlinear Evolution

The stability properties of one-dimensional radiative shocks with a power-law cooling function of the form $\Lambda \propto \rho^2T^\alpha$ are the main subject of this work. The linear analysis originally presented by Chevalier & Imamura, is thoroughfully reviewed for several values of the cooling index $\alpha$ and higher overtone modes. Consistently with previous results, it is shown that the spectrum of the linear operator consists in a series of modes with increasing oscillation frequency. For each mode a critical value of the cooling index, $\alpha_\textrm{c}$, can be defined so that modes with $\alpha < \alpha_\textrm{c}$ are unstable, while modes with $\alpha > \alpha_\textrm{c}$ are stable. The perturbative analysis is complemented by several numerical simulations to follow the time-dependent evolution of the system for different values of $\alpha$. Particular attention is given to the comparison between numerical and analytical results (during the early phases of the evolution) and to the role played by different boundary conditions. It is shown that an appropriate treatment of the lower boundary yields results that closely follow the predicted linear behavior. During the nonlinear regime, the shock oscillations saturate at a finite amplitude and tend to a quasi-periodic cycle. The modes of oscillations during this phase do not necessarily coincide with those predicted by linear theory, but may be accounted for by mode-mode coupling.Comment: 33 pages, 12 figures, accepted for publication on the Astrophysical Journa

The challenges of implementing and evaluating a pilot music and movement intervention for people with dementia (innovative practice).

This paper reports on the challenges associated with implementing and evaluating an innovative pilot music and movement project. The evaluation documents that participants enjoyed the sessions and that they created the opportunity for social engagement although there is little to suggest this is unique to this particular type of intervention. Difficulties included matching the programme to the needs of participants, communicating effectively, and over burdensome paperwork. The paper also comments on the challenges associated with last minute, limited funding opportunities for both the organisation commissioning a project and the team evaluating it. In this case, the evaluation team found that many of the more difficult issues associated with the pilot could have been resolved with more time for planning and preparation

Participant recruitment to FiCTION, a primary dental care trial – survey of facilitators and barriers

Objective To identify reasons behind a lower than expected participant recruitment rate within the FiCTION trial, a multi-centre paediatric primary dental care randomised controlled trial (RCT). Subjects (materials) and methods An online survey, based on a previously published tool, consisting of both quantitative and qualitative responses, completed by staff in dental practices recruiting to FiCTION. Ratings from quantitative responses were aggregated to give overall scores for factors related to participant recruitment. Qualitative responses were independently grouped into themes. Results Thirty-nine anonymous responses were received. Main facilitators related to the support received from the central research team and importance of the research question. The main barriers related to low child eligibility rates and the integration of trial processes within routine workloads. Conclusions These findings have directed strategies for enhancing participant recruitment at existing practices and informed recruitment of further practices. The results help provide a profile of the features required of practices to successfully screen and recruit participants. Future trials in this setting should consider the level of interest in the research question within practices, and ensure trial processes are as streamlined as possible. Research teams should actively support practices with participant recruitment and maintain enthusiasm among the entire practice team