MANAGING TRANSPORT INTEGRATION IN SOUTH AUSTRALIA

Abstract: By 1970 the transport portfolio in South Australia consisted of over a dozen government departments and statutory authorities of differing sizes and varying degrees of independence from the State Government. Each organization, by inclination or statutory requirement, tended to carry out its modal responsibilities without reference to the others, with the result that matters which did not fall clearly into the jurisdiction of one or another remained undone and transport problems remained unresolved. The development of area-wide land use planning in the 1960s and integrated economic planning in recent years were hindered by the inability of the transport portfolio to respond to such plans, or to enunciate a single transport policy for a given planning or developmental scenario. Since 1970 successive South Australian governments have pursued a policy of gradual integration of the transport portfolio. This paper reports on the progress achieved after ten years, problems confronted during this period, and prospects for further integration. Comparisons are made with other Australian States and the Commonwealth Government's transport administration.     

Book Reviews

Book reviewed in this article: The Legacy of Martin Luther King, Jr.: The Boundaries of Law, Politics and Religion by Lewis V. Baldwin. Against Us, But For Us: Martin Luther King, Jr. and the State by Michael G. Long. Macon.     

Can the direct cardiac effects of the electric pulses generated by the TASER X26 cause immediate or delayed sudden cardiac arrest in normal adults?

There is only a small amount of experimental data about whether the TASER X26, a nonlethal weapon that delivers a series of brief electrical pulses to cause involuntary muscular contraction to temporarily incapacitate an individual, can initiate ventricular fibrillation to cause sudden cardiac arrest either immediately or sometime after its use. Therefore, this paper uses the fundamental law of electrostimulation and experimental data from the literature to estimate the likelihood of such events. Because of the short duration of the TASER pulses, the large duration of the cardiac cell membrane time constant, the small fraction of current from electrodes on the body surface that passes through the heart, and the resultant high pacing threshold from the body surface, the fundamental law of electrostimulation predicts that the TASER pulses will not stimulate an ectopic beat in the large majority of normal adults. Since the immediate initiation of ventricular fibrillation in a normal heart requires a very premature stimulated ectopic beat and the threshold for such premature beats is higher than less premature beats, it is unlikely that TASER pulses can immediately initiate ventricular fibrillation in such individuals through the direct effect of the electric field generated through the heart by the TASER. In the absence of preexisting heart disease, the delayed development of ventricular fibrillation requires the electrical stimuli to cause electroporation or myocardial necrosis. However, the electrical thresholds for electroporation and necrosis are many times higher than that required to stimulate an ectopic beat. Therefore, it is highly unlikely that the TASER X26 can cause ventricular fibrillation minutes to hours after its use through direct cardiac effects of the electric field generated by the TASER.     

The problems and possibilities in regulating technological frontiers: the politics of the new anxiety?

The revolution in science, biotechnology and medicine of the past 30 years demands a revisitation of old institutional forms and responses, including those of law itself. Scientific citizenship requires that law develop a moral vision and vocabulary so that we shape the moral dimensions of the emergent bioeconomy. Chief among those in the field of biotechnology are technologies of human reproductive cloning, therapeutic cloning and stem cell research using human embryos. Where there are deep pluralist divisions is in relation to therapeutic cloning and embryonic stem cell research. Regulatory flexibility may be opportune in delimiting the extent to which government need stray into this realm of "moral politics". As Brownsword has written, an important developmental vector is what has become known in administrative and public law literature as the concept of "smart regulation". This concept is examined and an attempt to apply it to these fields is made. The enlarged nature of human action -- enlarged in magnitude, reach and novelty -- raises moral issues beyond interpersonal ethics and requires reflection; responsibility is centre stage and calls for lengthened foresight -- what has been called a "scientific futurology". This is also examined.     

Stable carbon and nitrogen isotope ratios of sodium and potassium cyanide as a forensic signature

Sodium and potassium cyanide are highly toxic, produced in large amounts by the chemical industry, and linked to numerous high-profile crimes. The U.S. Centers for Disease Control and Prevention has identified cyanide as one of the most probable agents to be used in a chemical terrorism event. We investigated whether stable C and N isotopic content of sodium and potassium cyanide could serve as a forensic signature for sample matching, using a collection of 65 cyanide samples. Upon analysis, a few of the cyanide samples displayed nonhomogeneous isotopic content associated with degradation to a carbonate salt and loss of hydrogen cyanide. Most samples had highly reproducible isotope content. Of the 65 cyanide samples, >95% could be properly matched based on C and N isotope ratios, with a false match rate <3%. These results suggest that stable C and N isotope ratios are a useful forensic signature for matching cyanide samples.     

Expressing Uncertainty in Dental Age Estimation: A Comparison between Two Methods of Calculating the “Average” Standard Deviation

The expression of uncertainty is defined by the standard deviation and is usually expressed in multiples of the standard deviation (±1sd, ±2sd, and ±3sd). The objective was to use weighting of the sd calculation by the number or count of subjects for each tooth development stage. A comparison shows the difference between the range of uncertainty using the unweighted sd and the weighted sd. The range of uncertainty related to Dental Age Estimation is statistically significantly greater (p < 0.001) for the weighted sd compared to the unweighted sd. It is concluded that the number of subjects for each Tooth Development Stage in the Reference Data set should be included in the calculation for a single Dental Age Estimation using the Simple Average Method when presenting the uncertainty associated with the point estimate of the “mean” for Dental Age Estimation of a single subject of unknown age.     

Contents of Volume 9

Volume Contents

Contents of Volume 9     

Adsorption saturation and chromatographic distortion effects on passive headspace sampling with activated charcoal in fire debris analysis

Distortion of the chromatographic profile obtained for hydrocarbons that have been sampled by adsorption onto activated charcoal is a well-known phenomenon. The work reported here helps to better define the causes of chromatographic profile distortion and offers a potential method to avoid chromatographic distortion in some cases through a subsampling technique. The recovery of hydrocarbons from an equimolar mixture was investigated to determine the influence of hydrocarbon concentration on the molar ratios of recovered components. In a one-quart container, hydrocarbon volumes as small as 24 microL (liquid) were sufficient to saturate the surface area available for adsorption on a 99.0 mm2 square of activated charcoal, resulting in significant distortions in the molar ratio and the chromatographic profile of the recovered hydrocarbons. Passive headspace sampling of a similarly small volume of unweathered gasoline spiked onto carpet padding resulted in a significant distortion of the chromatographic profile. The chromatographic profile of the recovered hydrocarbons closely resembled 75% weathered gasoline. Heating the container spiked with unweathered gasoline to evenly distribute the components and then removing a subsample of the carpet padding to a second container for passive headspace analysis greatly reduced the amount of distortion in the resulting chromatogram.