17,402 research outputs found
Comparison of liquid-metal magnetohydrodynamic power conversion cycles
Comparison of liquid metal magnetohydrodynamic power conversion cycle
Density Functional Calculations On First-Row Transition Metals
The excitation energies and ionization potentials of the atoms in the first
transition series are notoriously difficult to compute accurately. Errors in
calculated excitation energies can range from 1--4 eV at the Hartree-Fock
level, and errors as high as 1.5eV are encountered for ionization energies. In
the current work we present and discuss the results of a systematic study of
the first transition series using a spin-restricted Kohn-Sham
density-functional method with the gradient-corrected functionals of Becke and
Lee, Yang and Parr. Ionization energies are observed to be in good agreement
with experiment, with a mean absolute error of approximately 0.15eV; these
results are comparable to the most accurate calculations to date, the Quadratic
Configuration Interaction (QCISD(T)) calculations of Raghavachari and Trucks.
Excitation energies are calculated with a mean error of approximately 0.5eV,
compared with \sim 1\mbox{eV} for the local density approximation and 0.1eV
for QCISD(T). These gradient-corrected functionals appear to offer an
attractive compromise between accuracy and computational effort.Comment: Journal of Chemical Physics, 29, LA-UR-93-425
Understanding the basics of cannabidiol from cannabis to apply to therapeutics in epilepsy
The compounds present in cannabis have been in use for both recreational and medicinal purposes for many centuries. Changes in the legislation in South Africa have led to an increase in the number of people interested in using these compounds for self-medication. Many of them may approach their general practitioner as the first source of information about possible therapeutic effects. It is important that medical professionals are able to give patients the correct information. Cannabidiol (CBD) is one of the main compounds in cannabis plants, and there is evidence that it can successfully treat certain patients with epilepsy. This review looks at the most recent evidence on the use of CBD in the treatment of epilepsy and explores the mechanisms behind these beneficial effects
Interpersonal emotion regulation: a review of social and developmental components
A staple theme in clinical psychology, emotion regulation, or the ability to manage one's emotions, is directly linked with personal wellbeing and the ability to effectively navigate the social world. Until recently, this concept has been limited to a focus on intrapersonal processes, such as suppression. Less emphasis has been placed on developmental, social, and cultural aspects of emotion regulation. We argue here that as social beings, our engagement in emotion regulation may often occur interpersonally, with trusted others helping us to regulate our emotions. This review will highlight recent research on interpersonal emotion regulation processes.Dr Hofmann receives financial support from the Alexander von Humboldt Foundation (as part of the Humboldt Prize), NIH/NCCIH (R01AT007257), NIH/NIMH (R01MH099021, U01MH108168), and the James S. McDonnell Foundation 21st Century Science Initiative in Understanding Human Cognition - Special Initiative. He receives compensation for his work as an advisor from the Palo Alto Health Sciences and for his work as a Subject Matter Expert from John Wiley & Sons, Inc. and SilverCloud Health, Inc. He also receives royalties and payments for his editorial work from various publishers. (Alexander von Humboldt Foundation; R01AT007257 - NIH/NCCIH; R01MH099021 - NIH/NIMH; U01MH108168 - NIH/NIMH; James S. McDonnell Foundation 21st Century Science Initiative in Understanding Human Cognition - Special Initiative)Accepted manuscrip
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The Demoiselles d'Evanston: On the Aesthetics of the Wigmore Chart
Wigmore's ‘The Problem of Proof’, published in 1913, was a path-breaking attempt to systematize the process of drawing inferences from trial evidence. In this paper, written for a conference on visual approaches to evidence, I look at the Wigmore article in relation to cubist art, which coincidentally made its American debut in New York and Chicago the same spring that the article appeared. The point of the paper is to encourage greater attention to the complex meanings embedded in visual diagrams, meanings overlooked by the prevailing cognitive scientific approaches to the Wigmore method
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