Structural water molecules caged in microporous zeolites display tunable bright colors with unprecedented ultra-long lifetimes up to several seconds by the spatial interaction of adjacent O p orbitals.

We present the Word Mover’s Distance (WMD), a novel distance function between text documents. Our work is based on recent results in word embeddings that learn semantically meaningful representations for words from local cooccurrences in sentences. The WMD distance measures the dissimilarity between two text documents as the minimum amount of distance that the embedded words of one document nee...

We report on the synchronization of two commercial picosecond Ti:sapphire lasers with unprecedented low temporal jitter between the pulse trains. Pulse jitter is reduced from a few picoseconds to 20 fs with a stability of several hours. The technology enabling the tight pulse synchronization is reviewed in this article. We demonstrate the usefulness of the synchronization scheme by applying the...

Aggregation of polyglutamine-expanded huntingtin exon 1 (HttEx1) in Huntington's disease (HD) proceeds from soluble oligomers to late-stage inclusions. The nature of the aggregates and how they lead to neuronal dysfunction is not well understood. We employed mass spectrometry (MS)-based quantitative proteomics to dissect spatiotemporal mechanisms of neurodegeneration using the R6/2 mouse model ...

The Korean telecommunications services market has recently experienced an unprecedented growth in the wire-line broadband Internet access and mobile telephony markets. At 2004, 11 million households had broadband Internet access, while mobile telephony subscription reached 36 million—the corresponding penetration rates are 73% and 75%, respectively. By contrast, wire-line and wireless voice mar...

The market for security software has witnessed an unprecedented growth in recent years. A closer examination of this market reveals certain idiosyncrasies that are not observed in a traditional software market. For example, it is a highly competitive market involving many vendors. Yet, the market coverage seems relatively low. Prior research has not attempted to explain what makes this market d...

Structural variations (SVs) are the largest source of genetic variation, but remain poorly understood because of limited genomics technology. Single molecule long read sequencing from Pacific Biosciences and Oxford Nanopore has the potential to dramatically advance the field, although their high error rates challenge existing methods. Addressing this need, we introduce open-source methods for l...

In the past decade there has been a significant reduction in malaria incidence globally. In some places continuous surveillance has indicated that the reduction in malaria cases has been sustained to the point of near elimination. The drastic reduction in malaria cases may be attributed to the unprecedented financial support to national malaria control programmes by several donors. The use of i...

The solid state photoexcitation of several triphenylmethyl-alkyl ketones resulted in the loss of CO and the exclusive formation of radical-radical combination products. Differences in reactivity suggest a stepwise mechanism with the unprecedented formation of primary and secondary radicals in some of the radical pair intermediates in the solid state.

Editor’s note: The internet provides unprecedented opportunities to share summary data and complete datasets of original research online, in order that readers and researchers alike can review such data in detail. The implications of this ‘open data movement’ are considerable, though not entirely resolved. In this expanded Letter to the Editor, Dr. John Doyle comments on several ramifications o...