Internal wave propagation normal to a geostrophic current

It is shown that (i) internal gravity waves propagating along a horizontal density gradient in a uniformly rotating ocean can exist for a range of slightly smaller frequencies than is possible in the absence of such a gradient, (ii) such waves exhibit a phase difference from top to bottom, and (iii) they exchange energy with the geostrophic current, which balances the density-induced pressure gradient...

Can temperate forests deliver future wood demand and climate mitigation?

Global wood demand is projected to rise but supply capacity is questioned due to limited global forest resources. Furthermore, the lifecycle global warming potential (GWP) impact of additional wood supply and use is poorly understood. For the case of a temperate country, combining forest carbon modelling and life-cycle assessment we show that sustained afforestation to double forest area alongside enhanced productivity can meet lower-bound wood demand projections from 2058. Thus, temperate forestry value-chains can achieve a cumulative GWP benefit of up to 265 Tg CO2-equivalent (CO2e) by 2100 for each 100,000 ha (expanding to 200,000 ha through afforestation) of forest. Net GWP balance depends on which overseas forests supply domestic shortfalls, how wood is used, and rate of industrial decarbonisation. There is considerable but constrained potential for increased wood-use to deliver future climate-change mitigation, providing it is connected with a long-term planting strategy, enhanced tree productivity and efficient wood use

The potential therapeutic benefits of reading poetry to nursing home residents : the road less travelled?

In this paper we report on a project to take poetry into a nursing home, building on the widely-held belief in the benefits of poetry in therapeutic settings. This intervention involved us reading poetry aloud in a nursing home and reflecting on how residents reacted to these texts. Our findings suggest that talking about the poetry allowed members of this community to self-reflect and tell narratives that were important to them. Sometimes the poem served as a catalyst, encouraging the disclosure of poignant stories, while at other times the poems seemed incidental to the stories told by the group. Our subsequent reflections also suggested to us that there were several areas that needed further exploration. The poems are not delivered straight to the listener with no mediation; rather, the poems and the discussion afterwards are mediated by both the general expectations and particular interventions of the audience and the facilitators

Circular wood use can accelerate global decarbonisation but requires cross-sectoral coordination

Predominantly linear use of wood curtails the potential climate-change mitigation contribution of forestry value-chains. Using lifecycle assessment, we show that more cascading and especially circular uses of wood can provide immediate and sustained mitigation by reducing demand for virgin wood, which increases forest carbon sequestration and storage, and benefits from substitution for fossil-fuel derived products, reducing net greenhouse gas emissions. By United Kingdom example, the circular approach of recycling medium-density fibreboard delivers 75% more cumulative climate-change mitigation by 2050, compared with business-as-usual. Early mitigation achieved by circular and cascading wood use complements lagged mitigation achieved by afforestation; and in combination these measures could cumulatively mitigate 258.8 million tonnes CO 2e by 2050. Despite the clear benefits of implementing circular economy principles, we identify many functional barriers impeding the structural reorganisation needed for such complex system change, and propose enablers to transform the forestry value-chain into an effective societal change system and lead to coherent action. </p

A Comparison Between Phone-Based Psychotherapy With and Without Text Messaging Support In Between Sessions for Crisis Patients

This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.Background Individually tailored text messaging interventions have the potential to improve the outcomes of traditional psychotherapy through improved symptom monitoring, prompts for between-session activities and psychoeducation. Objective To explore the use of individually tailored between-session Short Message Service (SMS) as an adjunct to telephone-based psychotherapy for consumers who present to the Emergency Department (ED) in situational and/or emotional crises. Method Over a 4-month period, two therapists offered 68 prospective consumers of a telephone-based psychotherapy service individually tailored between-session SMS alongside their telephone-based psychotherapy. Attendance and clinical outcomes (depression, anxiety, functional impairment) of those receiving messages were compared against a historical control group (n=157) who received telephone psychotherapy only. Results A total of 66% (n = 45) of the consumers offered SMS accepted the intervention. A total of 432 messages were sent over the course of the trial, the majority involving some kind of psychoeducation or reminders to engage in therapy goals. There were no significant differences in clinical outcomes between consumers who received the SMS and those in the control group. There was a trend for participants in the intervention group to attend fewer sessions than those in the control group (3.7 (SD = 1.9) versus 4.4 (SD = 2.3). Conclusions Both groups showed significant improvement over time. Individually tailored SMS were not found to improve clinical outcomes in consumers receiving telephone-based psychotherapy, but the study was underpowered, given the effect sizes noted and the significance level chosen. Given the ease of implementation and positive feedback from therapists and clients, individually tailored SMS should be explored further in future trials with a focus on enhancing the clinical impact of the tailored SMS, and utilising designs with additional power to test for between-group effect

E Pluribus Unum: An Evaluation of Student Engagement and Learning in the College Marching Band

Thesis advisor: Karen ArnoldStudent engagement has been associated with a range of desirable outcomes in the undergraduate experience (Astin, 1993, Pascarella & Terenzini, 2005) and music participation has been shown to facilitate important personal and social development among its participants (Hallam, 2010). Despite this, no study has been conducted to evaluate the potential benefits of participation in one of the largest and most visible student organizations on campus: the college marching band. The purpose of this quantitative evaluation was to determine whether marching band students express distinctive patterns of engagement within their respective communities as compared with their non-band peers. Items and scales from the National Survey of Student Engagement (NSSE) were administered to marching band members (n=1,882) at 20 participating universities with National Collegiate Athletic Association (NCAA) Division-I football programs. Data were compared with a sample of general undergraduate (non-band) responses (n=6,095) from the same institutions provided by the NSSE Institute. Findings suggested that band students are more engaged with diverse peers along racial, ethnic, political, ideological, and religious lines (p<.01; Cohen’s d=0.26) and they are more reflective in their learning as evident in their willingness to imagine another’s perspective and reevaluate their own views (p<.01; Cohen’s d=0.19). Compared with non-band peers, marching band members indicated greater personal social responsibility on an array of vectors (p<.01; Cohen’s d=0.36) including: developing a personal code of values and ethics, understanding people of other racial and ethnic backgrounds, understanding themselves, learning effectively on their own, voting in local or national elections, contributing to the welfare of their community, and solving complex real-world problems. After controlling for a range of pre-college and co-existing variables, marching band membership remained the strongest predictor of these desirable outcomes (β=0.172, p<.01).Thesis (PhD) — Boston College, 2016.Submitted to: Boston College. Lynch School of Education.Discipline: Educational Leadership and Higher Education

Dissipative and Dispersive Optomechanics in a Nanocavity Torque Sensor

Dissipative and dispersive optomechanical couplings are experimentally observed in a photonic crystal split-beam nanocavity optimized for detecting nanoscale sources of torque. Dissipative coupling of up to approximately $500$ MHz/nm and dispersive coupling of $2$ GHz/nm enable measurements of sub-pg torsional and cantilever-like mechanical resonances with a thermally-limited torque detection sensitivity of 1.2$\times 10^{-20} \text{N} \, \text{m}/\sqrt{\text{Hz}}$ in ambient conditions and 1.3$\times 10^{-21} \text{N} \, \text{m}/\sqrt{\text{Hz}}$ in low vacuum. Interference between optomechanical coupling mechanisms is observed to enhance detection sensitivity and generate a mechanical-mode-dependent optomechanical wavelength response.Comment: 11 pages, 6 figure