The concept of chiral symmetry has been of great importance in elementary-particle physics for many years. ' ' In the context of massless quarks and quantum chromodynamics it is, of course, an exact symmetry, and should survive the proof of confinement in some way. It is not surprising, therefore, that immediately after the presentation of the original MIT bag model4 Chodos and Thorn' attempted...

As slide shows go, it wasn't even in the same league as your aunt's vacation snapshots, but the audience was paying close attention: there was going to be a quiz. In one sequence a student sitting in a packed lecture hall topples onto the floor. In others, a hand retrieves oranges that have rolled all over a supermarket, and a woman picks up groceries scattered across a floor. Between 15 minute...

For rehabilitation and diagnoses, an understanding of patient activities and movements is important. Modern smartphones have built in accelerometers which promise to enable quantifying minute-by-minute what patients do (e.g. walk or sit). Such a capability could inform recommendations of physical activities and improve medical diagnostics. However, a major problem is that during everyday life, ...

The micro-nano pore structure of conglomerate in the Lower Karamay Formation Xinjiang Oilfield, Junggar Basin, northern China is characterized to predict its impact on fluid reserves and seepage. Authigenic clay minerals are mainly kaolinite (67%), followed by an illite/smectite mixed layer (18%), illite (10%), chlorite (5%). For kaolinite, throats between 0–200 nm dominant, accounting for 90% ...

The Problem: Traditional information retrieval systems based on the “bag-of-words” paradigm cannot capture the semantic content of documents. While these systems are relatively robust and have high recall, they suffer from very poor precision. On the other hand, it is impossible with current technology to build a practical information access system that fully analyzes and understands unrestrict...

In this work, we will report on the use of selforganizing maps (SOMs) in a clustering and relation extraction task. Specifically, we use the approach of self-organizing maps for structured data (SOMSDs) (i) for clustering music related articles from the free online encyclopedia Wikipedia and (ii) for extracting relations between the created clusters. We hereby rely on the bag-of-words similarit...