791 research outputs found
Zen and the Art of Doughnut Economics: When Limits are Strangely Liberating
Kate Raworth\u27s celebrated book, Doughnut Economics: Seven ways to think like a 21st century economist, calls for a reconciliation of our design principles for society and the economy with the rhythms and tolerances of ecological systems. It will demand something akin to a new axial revolution that will have to be experienced as much in the body and in the intimacies of a renewed care and appreciation for our relational and ecological selves as in the collective re-design of our societies, democratic decision-making and collective provisioning. Buddhist scholarship offers a distinctive contribution to this conversation invoked in a book that has sparked a global movement
Zen and the Art of Doughnut Economics: When Limits are Strangely Liberating
Kate Raworth\u27s celebrated book, Doughnut Economics: Seven ways to think like a 21st century economist, calls for a reconciliation of our design principles for society and the economy with the rhythms and tolerances of ecological systems. It will demand something akin to a new axial revolution that will have to be experienced as much in the body and in the intimacies of a renewed care and appreciation for our relational and ecological selves as in the collective re-design of our societies, democratic decision-making and collective provisioning. Buddhist scholarship offers a distinctive contribution to this conversation invoked in a book that has sparked a global movement
The Role of Awakening Cortisol and Psychological Distress in Diurnal Variations in Affect: A Day Reconstruction Study
People often feel unhappy in the morning but better later in the day, and this pattern may be amplified in the distressed. Past work suggests that one function of cortisol is to energize people in the mornings. In a study of 174 students we tested to see if daily affect patterns, psychological distress, and awakening cortisol levels were interlinked. Affect levels were assessed using the Day Reconstruction Method (Kahneman, Krueger, Schkade, Schwarz, & Stone, 2004) and psychological distress was measured using the Depression Anxiety Stress Scales (Antony, Bieling, Cox, Enns, & Swinson, 1998). On average positive affect increased markedly in a linear pattern across the day whilst negative affect decreased linearly. For the highly distressed this pattern was stronger for positive affect. Lower than average morning cortisol, as assessed by two saliva samples at waking and two samples 30 minutes after waking, predicted a clear increasing pattern of positive affect throughout the day. When we examined the interlinkages between affect patterns, distress, and cortisol our results showed that a pronounced linear increase in positive affect from morning through to evening occurred chiefly among distressed people with below average cortisol levels upon awakening. Psychological distress, whilst not strongly associated with morning cortisol levels, does appear to interact with cortisol levels to profoundly influence affect.Cortisol, Psychological Distress, Positive Affect, Diurnal Variation, Day Reconstruction Method
Naturalistic monitoring of the affect-heart rate relationship: A Day Reconstruction Study
Objective: Prospective studies have linked both negative affective states and trait neuroticism with hypertension, cardiovascular disease, and mortality. However, identifying how fluctuations in cardiovascular activity in day-to-day settings are related to changes in affect and stable personality characteristics has remained a methodological and logistical challenge. Design - In the present study, we tested the association between affect, affect variability, personality and heart rate (HR) in daily life. Measures: We utilized an online day reconstruction survey to produce a continuous account of affect, interaction, and activity patterns during waking hours. Ambulatory HR was assessed during the same period. Consumption, activity, and baseline physiological characteristics were assessed in order to isolate the relationships between affect, personality and heart rate. Results: Negative affect and variability in positive affect predicted an elevated ambulatory HR and tiredness a lower HR. Emotional stability was inversely related to HR, whereas agreeableness predicted a higher HR. Baseline resting HR was unrelated to either affect or personality. Conclusion: The results suggest that both state and trait factors implicated in negative affectivity may be risk factors for increased cardiovascular reactivity in everyday life. Combining day reconstruction with psychophysiological and environmental monitoring is discussed as a minimally invasive method with promising interdisciplinary relevance.heart rate, negative affect, affect variability, Big Five, Day Reconstruction Method
GIS tool to predict photosynthetically active radiation in a Dry Valley
© Antarctic Science Ltd 2020 Understanding primary productivity is a core research area of the National Science Foundation\u27s Long-Term Ecological Research Network. This study presents the development of the GIS-based Topographic Solar Photosynthetically Active Radiation (T-sPAR) toolbox for Taylor Valley. It maps surface photosynthetically active radiation using four meteorological stations with âŒ20 years of data. T-sPAR estimates were validated with ground-truth data collected at Taylor Valley\u27s major lakes during the 2014-15 and 2015-16 field seasons. The average daily error ranges from 0.13 mol photons m-2 day-1 (0.6%) at Lake Fryxell to 3.8 mol photons m-2 day-1 (5.8%) at Lake Hoare. We attribute error to variability in terrain and sun position. Finally, a user interface was developed in order to estimate total daily surface photosynthetically active radiation for any location and date within the basin. T-sPAR improves upon existing toolboxes and models by allowing for the inclusion of a statistical treatment of light attenuation due to cloud cover. The T-sPAR toolbox could be used to inform biological sampling sites based on radiation distribution, which could collectively improve estimates of net primary productivity, in some cases by up to 25%
Temporal Evolution of Heavy-Ion Spectra in Solar Energetic Particle Events
Solar energetic particles (SEPs) are released into the heliosphere by solar flares and coronal mass ejections (CMEs). They are mostly protons, with smaller amounts of heavy ions from helium to iron, and lesser amounts of species heavier than iron. The spectra of heavy ions have been previously studied mostly by using the fluence of the particles in an event-integrated spectrum in a small number of spectral snapshots. In this article, we ana- lyze the temporal evolution of the heavy-ion spectra using two large SEP events (27 January 2012 and 7 January 2014) from the Solar TErrestrial Relations Observatory (STEREO) era using Advanced Composition Explorer (ACE) Solar Isotope Spectrometer (SIS) and Ultra Low Energy Isotope Spectrometer (ULEIS), Energetic Particles: Acceleration, Composition and Transport (EPACT) onboard Wind, and the STEREO-A (Ahead) and -B (Behind) Low- Energy Telescope (LET) and Suprathermal Ion Telescope (SIT) instruments, taking a large number of snapshots covering the temporal evolution of the event. We find large differences in the spectra of the ions after the main flux enhancement in terms of the grouping of similar species, but also in terms of the location of the instruments. Although it is somewhat less no- ticeable than in the case of the temporal evolution of protons (Doran and Dalla, Solar Phys. 291, 2071, 2016), we observe a wave-like pattern travelling through the heavy ion spectra from the highest energies to the lowest, creating an âarchâ structure that later straightens into a power law after 18 to 24 hours
Geometric Algebra and Star Products on the Phase Space
Superanalysis can be deformed with a fermionic star product into a Clifford
calculus that is equivalent to geometric algebra. With this multivector
formalism it is then possible to formulate Riemannian geometry and an
inhomogeneous generalization of exterior calculus. Moreover it is shown here
how symplectic and Poisson geometry fit in this context. The application of
this formalism together with the bosonic star product formalism of deformation
quantization leads then on space and space-time to a natural appearance of spin
structures and on phase space to BRST structures that were found in the path
integral formulation of classical mechanics. Furthermore it will be shown that
Poincare and Lie-Poisson reduction can be formulated in this formalism.Comment: 35 page
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