20,893 research outputs found
Dialogical Skirmishes
No full textTan was guest editor for 'And Now China?', a special print edition of the Ctrl+P journal, which critically responded to the celebratory rhetoric’s of ‘China Now’ and other celebratory markers of China's global ascent in 2008. As well as the introductory article 'Dialogical Skirmishes', Tan also interviewed Hans Ulrich Obrist
Evidence for erbium-erbium energy migration in erbium(III) bis(perfluoro-p-tolyl)phosphinate
No full textCopyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. This article appeared in Applied Physics Letters 92, 103303 (2008) and may be found at
Supernova Remnants in High Definition
No full textAs the observable products of explosive stellar death, supernova remnants reveal some of the most direct information on the physics of the explosions, the properties of the progenitor systems, and the demographics of compact objects formed in the supernova events. High sensitivity X-ray observations have allowed us to probe the properties of the shocked plasma, providing constraints on abundances and ionization states that connect directly progenitor masses and metallicities, the nature of the explosions (core-collapse vs. thermonuclear), and the physics of shock heating and particle acceleration in fast shocks. Studies of SNRs in the Magellanic Clouds have provided information on source demographics in a low metallicity environment, and deep searches for point sources in Galactic SNRs imply that many remnants contain rapidly cooling neutron stars or black holes. Based on Chandra observations, we know that crucial measurements required to advance our knowledge in these areas are possible only with much more sensitive observations at high angular resolution. From identifying the effects of particle acceleration on the post-shock gas in young SNRs like Tycho to obtaining spatially resolved spectra - and identifying compact objects - for young SNRs in the Magellanic Clouds, the capabilities of a facility like the X-ray Surveyor are required. Here I present a summary of recent advances brought about by spectral investigations of SNRs, and discuss particular examples of new advances that will be enabled by X-ray Surveyor capabilities.Session 2 continued: Plasma Physics
Chair: Rob Petr
Replication package for "The Lifecycle of Technical Debt that Manifests in both Source Code and Issue Trackers"
No full textReplication package for the paper:
Jie Tan, Daniel Feitosa, Paris Avgerio, The lifecycle of Technical Debt that manifests in both source code and issue trackers, Information and Software Technology, 2023, doi: 10.1016/j.infsof.2023.107216
Toward the Synthesis of the Fungal Metabolite (-)-TAN-2483B
No full textIn the search of chemical species with potential therapeutic biological activity, synthetic chemists have looked to nature for inspiration. Molecules built by biological machinery often have structures predisposed for biological interaction. (-)-TAN-2483B and the related compounds (-)-TAN-2483A, and waol A are fungal metabolites that display biological activity in kinase inhibition and parathyroid-induced bone resorption. Though total syntheses of (-)-TAN-2483A and waol A have been achieved, the established methodology does not afford access to (-)-TAN-2483B owing to the unique relative configuration about the ring system. Derivatives of D-galactal have been synthesised, and functionalised at the C-1 and C-2 positions, laying the groundwork for a route to (-)-TAN-2483B and analogues. Using D-galactal derivatives is advantageous as it circumvents some difficult transformations in the existing method for analogue synthesis. The functionalities installed were halide and formyl groups at the C-2 position, and acetylenes at the C-1 position. The synthesis of 2-haloglycals from tri-O-acetyl-D-galactal using N-halosuccinimides was achieved in 32% and <37% for the bromo- and iodo- variants respectively. Vilsmeier-Haack formylation was explored using per-benzylated and per-acetylated galactals as substrates. Formylation of the per-benzylated species was achieved in 78% yield in accordance with literature values. Vilsmeier-Haack formylation on the per-acetylated galactal has not been reported and the glycal was found to be a poor substrate for the formylation. Theories regarding the incompatibility of the per-acetylated species with Vilsmeier-Haack conditions were developed. Ferrier-type alkynylation of the 2-halo/formylglycals was explored, with yields up to 17% and 13% for the bromo- and iodo- species (unoptimised), and 7% for 2-formylglycal (after optimisation studies). The resulting 1-ethynyl-2-formyl/halo-2,3-unsaturated pyrans could be potential intermediates en route to the furanone ring of the target compound.</p
Free thinking - running
No full textWe've been running for two million years give or take. Shahidha Bari and Laurence Scott explore contemporary running as solitary inspiration and communal activity with the Geographer and 1999 Scottish Hill Running Champion, Hayden Lorimer, the artists Kai Syng Tan and Angus Farquhar, and the literary scholar and bare-foot artiste, Vybarr Cregan-Reid. Conversation ranges from feeling empowered on city streets to teaming up with the wind to the horrid history of the treadmill and explore whether Running deserves better representation in the arts. Guests: Vybarr Cregan-Reid - author of Footnotes How Running Makes Us Human Angus Farquhar, Creative Director of NVA Public Art, author of a blog 'The Grim Runner' Hayden Lorimer Running Geographer Kai Syng Tan, Artist and curator of a biennial festival Run Run Run Producer: Jacqueline Smith
sj-jpg-5-tan-10.1177_17562864221138144 – Supplemental material for Effects of non-invasive brain stimulation in dystonia: a systematic review and meta-analysis
No full textSupplemental material, sj-jpg-5-tan-10.1177_17562864221138144 for Effects of non-invasive brain stimulation in dystonia: a systematic review and meta-analysis by Jordan Morrison-Ham, Gillian M. Clark, Elizabeth G. Ellis, Andris Cerins, Juho Joutsa, Peter G. Enticott and Daniel T. Corp in Therapeutic Advances in Neurological Disorders</p
sj-jpg-3-tan-10.1177_17562864221138144 – Supplemental material for Effects of non-invasive brain stimulation in dystonia: a systematic review and meta-analysis
No full textSupplemental material, sj-jpg-3-tan-10.1177_17562864221138144 for Effects of non-invasive brain stimulation in dystonia: a systematic review and meta-analysis by Jordan Morrison-Ham, Gillian M. Clark, Elizabeth G. Ellis, Andris Cerins, Juho Joutsa, Peter G. Enticott and Daniel T. Corp in Therapeutic Advances in Neurological Disorders</p
sj-jpg-13-tan-10.1177_17562864221138144 – Supplemental material for Effects of non-invasive brain stimulation in dystonia: a systematic review and meta-analysis
No full textSupplemental material, sj-jpg-13-tan-10.1177_17562864221138144 for Effects of non-invasive brain stimulation in dystonia: a systematic review and meta-analysis by Jordan Morrison-Ham, Gillian M. Clark, Elizabeth G. Ellis, Andris Cerins, Juho Joutsa, Peter G. Enticott and Daniel T. Corp in Therapeutic Advances in Neurological Disorders</p
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