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A Quick Guide To Running DFTB (With Available Parameters) In GAMESS-US

This post comes out of my great appreciation for just how well Yoshio Nishimoto’s DFTB (density functional-based tight binding method) implementation in GAMESS-US runs, both as an additional...

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Free Astronomy Magazine – September-October 2019 Issue Available For Reading...

Above: Yup, Leo might be on to something. A Leonid Kulik photo of a small snippet of the Tunguska aftermath. The most recent issue of Free Astronomy Magazine (September-October 2019) is available for...

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17,500 Years In The Making – A Small Contribution To The 3rd Edition Of “Star...

Above: One of my all-time favorite images – a mural within the Lascaux Caves, possibly depicting three (now) prominent asterisms in the nighttime skies of winter. I had been forwarded along a link...

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Free Astronomy Magazine – November-December 2019 Issue Available For Reading...

The most recent issue of Free Astronomy Magazine (November-December 2019) is available for your reading and downloading pleasure at www.astropublishing.com (click the link to go directly to the...

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Free Astronomy Magazine – January-February 2020 Issue Available For Reading...

Above: On ancient Mars, water carved channels and transported sediments to form fans and deltas within lake basins. Examination of spectral data acquired from orbit show that some of these sediments...

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Preparation Of Ordered Polyacetylene By Solid-State Polymerization In...

In press, in Chemistry of Materials (doi.org/10.1021/acs.chemmater.9b03644). The theory that underlies the reason for this article is addressed in “Bond Alternation In Infinite Periodic Polyacetylene:...

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Special Issue! Free Astronomy Magazine – March/April 2020 Issue Available For...

Above: The changed technology of libraries and library lectures (all used), including a slide projector (property of my late, great-uncle Gus Columbus) with a two-slide carousel (and a book of slides...

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Chemistry Of Materials – Cover Art For "Preparation Of Ordered Polyacetylene...

Chemistry of Materials, March 10, 2020, Volume 32, Issue 5, Pages 1703-2194, Editor: Tara JEM: Esther RTP: Cathy Fisher As appearing at pubs.acs.org/toc/cmatex/32/5 – icing on the cake that was the...

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Free Astronomy Magazine – May-June 2020 Issue Available For Reading And Download

Above: This visible light wide-field view shows the rich star clouds in the constellation of Sagittarius (the Archer) in the direction of the center of our Milky Way galaxy. The entire image is filled...

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Free Astronomy Magazine – July-August 2020 Issue Available For Reading And...

Above: Featured background from the article "A supernova or Sagittarius – which should we thank?" A graphic reconstruction of our galaxy, made on the basis of NASA images, by Nick Risinger (and...

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