Online Graduate Student Perceptions of Program Community

This study investigates online graduate student perceptions of program community (i.e., feelings of trust, connection, and affiliation among students, faculty, and staff that develop and exist outside individual courses). Eighty-four graduate students in one certificate and two degree programs completed a researcher-developed survey distributed through email. The results indicated that students had a modest interest in program community, took pride in program affiliation, and incorporated affiliation as part of their personal identities. Students were interested in their peers’ and professors’ professional interests and felt comfortable contacting faculty members when not enrolled in their courses. The results are discussed in the context of the literature

Social, cultural and experiential patterning of attitudes and behaviour towards assisted suicide in Switzerland: evidence from a national population-based study.

Switzerland has the longest history of the legal practice of non-physician assisted suicide of any country. Assisted suicide is not very tightly regulated in Switzerland, and almost all assisted suicides are supported by a right-to-die organisation. Our study investigates older adults’ attitudes and behaviour towards assisted suicide, and the associations of these with the individuals’ sociodemographic and cultural characteristics, as well as with their own health status and healthcare-related experiences in Switzerland. We performed weighted prevalence and multivariable logistic regression estimation on a nationally representative sample of adults aged 55 and over from wave 6 (2015) of the Survey of Health, Ageing and Retirement in Europe (SHARE) in Switzerland (n = 2168). Overall, 81.7% of respondents supported the legality of assisted suicide, as is currently the case in Switzerland, and 60.9% stated that they would potentially consider asking for assisted suicide under certain circumstances; 28.2% of respondents reported either that they are already or that they are likely to become a member of a right-to-die organisation, with 4.9% of respondents reporting to already be a member of such an organisation at the time of the survey. Higher levels of education and previous experience as a healthcare proxy were positively associated with more favourable attitudes and behaviour towards assisted suicide. Compared to individuals aged 55–64, adults aged 65–74 generally showed more favourable attitudes and behaviour towards assisted suicide. By contrast, religious persons displayed more negative attitudes and behaviour towards assisted suicide. Attitudes towards assisted suicide were also more negative in the oldest age group (75+) in comparison to adults aged 55–64, and among persons living in French- and Italian-speaking Switzerland compared to those living in German-speaking Switzerland. While approval for assisted suicide is high overall in Switzerland, more vulnerable population groups, such as older or less educated individuals, have less favourable attitudes towards assisted suicide. In addition, cultural sensitivities to and personal experiences with death and dying are likely to shape the approval or rejection of assisted suicide as it is currently implemented in Switzerland

Integrated systems research for sustainable smallholder agriculture in the Central Mekong: Achievements and challenges of implementing integrated systems research

Internal Revie

Remifentanil does not impair left ventricular systolic and diastolic function in young healthy patients

Background Experimental studies and investigations in patients with cardiac diseases suggest that opioids at clinical concentrations have no important direct effect on myocardial relaxation and contractility. In vivo data on the effect of remifentanil on myocardial function in humans are scarce. This study aimed to investigate the effects of remifentanil on left ventricular (LV) function in young healthy humans by transthoracic echocardiography (TTE). We hypothesized that remifentanil does not impair systolic, diastolic LV function, or both. Methods Twelve individuals (aged 18-48 yr) without any history or signs of cardiovascular disease and undergoing minor surgical procedures under general anaesthesia were studied. Echocardiographic examinations were performed in the spontaneously breathing subjects before (baseline) and during administration of remifentanil at a target effect-site concentration of 2 ng ml−1 by target-controlled infusion. Analysis of systolic function focused on fractional area change (FAC). Analysis of diastolic function focused on peak early diastolic velocity of the mitral annulus (e′) and on transmitral peak flow velocity (E). Results Remifentanil infusion at a target concentration of 2 ng ml−1 did not affect heart rate or arterial pressure. There was no evidence of systolic or diastolic dysfunction during remifentanil infusion, as the echocardiographic measure of systolic function (FAC) was similar to baseline, and measures of diastolic function remained unchanged (e′) or improved slightly (E). Conclusion Continuous infusion of remifentanil in a clinically relevant concentration did not affect systolic and diastolic LV function in young healthy subjects during spontaneous breathing as indicated by TT

Perspetiva europeia de melhoramento e propagacao de macieira em agricultura biológica no âmbito do projeto LIVESEED

Perspetiva europeia de melhoramento e propagação de macieira em agricultura biológica no âmbito do projeto LIVESEED

Formation of a stable deacagonal quasicrystalline Al-Pd-Mn surface layer

We report the in situ formation of an ordered equilibrium decagonal Al-Pd-Mn quasicrystal overlayer on the 5-fold symmetric surface of an icosahedral Al-Pd-Mn monograin. The decagonal structure of the epilayer is evidenced by x-ray photoelectron diffraction, low-energy electron diffraction and electron backscatter diffraction. This overlayer is also characterized by a reduced density of states near the Fermi edge as expected for quasicrystals. This is the first time that a millimeter-size surface of the stable decagonal Al-Pd-Mn is obtained, studied and compared to its icosahedral counterpart.Comment: Submitted to Phys. Ref. Lett. (18 July 2001

DSCIM-Coastal v1.1: an open-source modeling platform for global impacts of sea level rise

Sea level rise (SLR) may impose substantial economic costs to coastal communities worldwide, but characterizing its global impact remains challenging because SLR costs depend heavily on natural characteristics and human investments at each location – including topography, the spatial distribution of assets, and local adaptation decisions. To date, several impact models have been developed to estimate the global costs of SLR. Yet, the limited availability of open-source and modular platforms that easily ingest up-to-date socioeconomic and physical data sources restricts the ability of existing systems to incorporate new insights transparently. In this paper, we present a modular, open-source platform designed to address this need, providing end-to-end transparency from global input data to a scalable least-cost optimization framework that estimates adaptation and net SLR costs for nearly 10 000 global coastline segments and administrative regions. Our approach accounts both for uncertainty in the magnitude of global mean sea level (g.m.s.l.) rise and spatial variability in local relative sea level rise. Using this platform, we evaluate costs across 230 possible socioeconomic and SLR trajectories in the 21st century. According to the latest Intergovernmental Panel on Climate Change Assessment Report (AR6), g.m.s.l. is likely to rise during the 21st century by 0.40–0.69 m if late-century warming reaches 2 ∘C and by 0.58–0.91 m with 4 ∘C of warming (Fox-Kemper et al., 2021). With no forward-looking adaptation, we estimate that annual costs of sea level rise associated with a 2 ∘C scenario will likely fall between USD 1.2 and 4.0 trillion (0.1 % and 1.2 % of GDP, respectively) by 2100, depending on socioeconomic and sea level rise trajectories. Cost-effective, proactive adaptation would provide substantial benefits, lowering these values to between USD 110 and USD 530 billion (0.02 and 0.06 %) under an optimal adaptation scenario. For the likely SLR trajectories associated with 4 ∘C warming, these costs range from USD 3.1 to 6.9 trillion (0.3 % and 2.0 %) with no forward-looking adaptation and USD 200 billion to USD 750 billion (0.04 % to 0.09 %) under optimal adaptation. The Intergovernmental Panel on Climate Change (IPCC) notes that deeply uncertain physical processes like marine ice cliff instability could drive substantially higher global sea level rise, potentially approaching 2.0 m by 2100 in very high emission scenarios. Accordingly, we also model the impacts of 1.5 and 2.0 m g.m.s.l. rises by 2100; the associated annual cost estimates range from USD 11.2 to 30.6 trillion (1.2 % and 7.6 %) under no forward-looking adaptation and USD 420 billion to 1.5 trillion (0.08 % to 0.20 %) under optimal adaptation. Our modeling platform used to generate these estimates is publicly available in an effort to spur research collaboration and support decision-making, with segment-level physical and socioeconomic input characteristics provided at https://doi.org/10.5281/zenodo.7693868 (Bolliger et al., 2023a) and model results at https://doi.org/10.5281/zenodo.7693869 (Bolliger et al., 2023b).</p

The surface science of quasicrystals

The surfaces of quasicrystals have been extensively studied since about 1990. In this paper we review work on the structure and morphology of clean surfaces, and their electronic and phonon structure. We also describe progress in adsorption and epitaxy studies. The paper is illustrated throughout with examples from the literature. We offer some reflections on the wider impact of this body of work and anticipate areas for future development. (Some figures in this article are in colour only in the electronic version