This study investigates an unusual source of environmental lead contamination - the emission and deposition of lead and zinc concentrates along train lines into and out of Australia's oldest silver-lead-zinc mine at Broken Hill, Australia. Transport of lead and zinc ore concentrates from the Broken Hill mines has occurred for more than 125 years, during which time the majority was moved in unco...

We study the topology of field lines threading buoyant magnetic flux structures. The magnetic structures, visually resembling idealised magnetic flux tubes, are generated self-consistently by numerical simulation of the interaction of magnetic buoyancy and a localized velocity shear in a stably-stratified atmosphere. Depending on the parameters, the system exhibits varying degrees of symmetry. ...

The increased frequency of sudden cardiac death after earthquakes and bombings has long proposed that emotional distress plays a role in acute coronary syndromes and arrhythmias. Since the 1960s, several controlled, prospective, epidemiological studies have reported emotional distress as a major risk factor for the onset and worsening of coronary heart disease (CHD) [1]. The Interheart study, a...

In some pattern recognition processes bmed on recognizing structural features, a serious problem is poorly-cbawn lines which cause broken parts when a digital bitmap (a binary image) is madeof the line-jgure. This broken pattern changes the pattern structure, and increases the likelihood of rejection or misreading during the recognition process. Therefore, we have developed a restoration method...

Two-dimensional polyacrylamide gel electrophoresis can be used to identify structural forms of RNA such as linear RNA, circular RNA, interlocked circles and lariats. The procedure is based upon the characteristic migration behaviour of the degradation products derived from the intact structures present already before the start of the experiment or formed during or after electrophoresis in the f...

This is a draft of a chapter for a book, Modification, in preparation for the Cambridge University Press series Key Topics in Semantics and Pragmatics. The full manuscript is also available as a single document on my website, as are some additional chapters. The book is something between a textbook for people who already have a basic background in semantics and a survey of work in the area. For...