Role of angiotensin II in the hypertension induced by renal artery stenosis

Identical degrees of renal artery stenosis were induced in 5 dogs on two separate occasions; once during continuous inhibition of angiotensin I converting enzyme with enalapril, and once with the dogs untreated. Arterial pressure rose about 25 mm Hg during 3 days of stenosis in untreated dogs, due to increased total peripheral resistance. When the dogs were treated with enalapril, blood pressure had risen 14.5 ± 3.4 mm Hg 24 hours after stenosis due to a 35% increase in cardiac output while total peripheral resistance fell by 16%. By the third day, blood pressure had returned to pre-stenosis levels, cardiac output was close to normal and total peripheral resistance had increased. The stenosis on the renal artery increased the resistance to blood flow of the kidneys in both untreated and enalapril treated dogs. This increase in kidney resistance in the untreated dogs accounted for about 30% of the change in total peripheral resistance. In the enalapril treated dogs, the increased kidney resistance helped offset the vasodilatation in the rest of the vasculature. These results suggest that angiotensin II mediated vasoconstriction of nonrenal vascular beds was responsible for about ⅔ of the hypertension following renal artery stenosis, and the resistance of the stenosis responsible for about ⅓.

Inspired by the past, driven by the passion: music in state-supported education in New South Wales and Victoria 1848-1920

This investigation considers the development of class music teaching in New South Wales and Victoria during the first seventy-two years of state-supported primary education. The first chapter describes the English background including music teaching methods (resulting from the mid-nineteenth century English choral singing movement) and the subsequent development of music teaching in English elementary schools. The promotion of school music is then considered on a broadly chronological basis in the two states and several themes are identified in relation to school music policy and practice. These include the status of music (core curriculum or extra-curricular subject), who should teach music (generalist or specialist teachers), what teaching methods and music notation should be used (staff or Tonic Sol-fa), musical training for generalist teachers, and curriculum content in relation to the aims and objectives of school music. Comparisons are made between developments in both states and between both states and English school music. The final chapter demonstrates the relevance of many of the historical themes identified for music education today. The thesis concludes by identifying a recurring problem from the past. namely the lack of co-ordination between various aspects of school music policy, as the most serious problem to be overcome in the future.

The solution to the dilemma presented by the guilty plea discount : the qualified guilty plea - I'm pleading guilty only because of the discount..."

The guilty plea sentencing discount is arguably a triumph of expediency over principle. Strong utilitarian reasons favour providing less severe sentences to defendants who plead guilty. However, an unsavoury by-product of the guilty plea discount is that some innocent people are pressured into pleading guilty. This article suggests that a possible solution to the problems caused by the discount is to permit defendants to enter a ‘qualified guilty plea’. While formally amounting to a guilty of plea, the defendant would be permitted to advance submissions consistent with innocence as part of the plea in mitigation. If the sentencer is persuaded that the defendant had a tenable chance of an acquittal a penalty discount in excess of that available for merely pleading guilty would be conferred.

Integrated natural resource management in Australia: the opportunity offered by a national coastal policy

Under the Australian Constitution the management (and planning) of Crown Land is a State and Territory Government responsibility. When this is considered in conjunction with the Offshore Constitutional Settlement, which affirmed that coastal waters out to three nautical miles (in general) offshore were also the responsibility of State and Territory Governments, then clearly coastal management in Australia is largely a State/Territory responsibility.

Beyond three nautical miles it is a different story. Under the United Nations Law of the Sea Convention (UNCLOS), which Australia ratified in October 1994, Australia claims jurisdiction out to 200 nautical miles and beyond (Wescott, 2000). These waters cover an area including the Antarctic claim of over 15 million square kilometres or twice the land area of Australia.

Hence in marine and coastal terms we have the national (Commonwealth) Government managing the oceans and seven State and Territory governments largely in charge of coastal management (coastal land and coastal waters). Heading "up river", State and Territory Governments plan and manage catchments.

Given the uncoordinated relationships between Australian coastal management policy and both catchment management policy and Australia's Ocean Policy (Commonwealth of Australia, 1998a and b), the Commonwealth Government's commitment to a "National Coastal Policy" presents an opportunity to progress the integration of natural resources management for the first time in decades.

Predictors of the strain experienced by professional Australian footballers

The purpose of this model was to examine whether both the generic dimensions of the Job stress model (JSM) and job-specific stressors would be predictive of the strain experienced by professional Australian footballers. A football-specific stressor scale questionnaire was distributed and football specific stressors and their impact were identified.

A solar collector with the absorber divided by rectangular slots

A new solar absorber structure has been proposed and studied in this paper. The metal tubes running perpendicular to a set of parallel rectangular metal fins make the solar absorber with rectangular slots. Studies on the collector were theoretically carried out in the aspects of heat transfer, thermodynamics and . hydrodynamics. The calculating methods for calculating fin efficiency F and efficiency factors of the collector F' were obtained. The results showed that the new solar collector would have the higher efficiency and better performance at higher fluid temperature than that of the traditional flat-plate collectors. A collector prototype with the new structure was built and tested. The testing results agree with our theoretical results.

The various means by which organisations control or avoid emotion

The purpose of this paper is to examine, from the perspective of change recipients, how organisational change shapes emotional responses and the typical ways in which organisations respond to emotionality. Through the influence of change strategists' role and role obligations, interpersonal influence, and use and abuse of power, organisations seek to control or avoid emotion. The final section of the paper explores the implications of these issues for management of change and offers change leaders alternative paths to dealing with emotional responses during times of organisational change.

Teaching about the Holocaust : essays by college and university teachers

This collection of fourteen essays by renowned scholars in the field of Holocaust studies seeks to reflect on the experience of teaching and researching this complicated and emotional topic. Contained within are the pioneering stories of those presently engaged in the work of Holocaust education. Separately, they represent a variety of disciplines and orientations. Collectively, they give evidence of the strong commitment to continue this important work, and the moral and ethical demands such teaching, writing, and research place upon all who engage in it. Different perspectives from historical, philosophical, and religious frameworks come together to create a unique contribution to the literature on the Holocaust. Educators discuss what they teach, their methodologies and theoretical orientations and reflect on their own journeys that brought them to this field. The unique nature of these stories bring needed background to the field of Holocaust studies and also serve to inspire others to enlarge their thinking and understanding of previous work on this topic. The stories of these committed Holocaust educators will serve to inspire a new generation of thinkers, writers, and activists to engage in such work. In reading their stories, their collective commitment to make a difference today and tomorrow shines through. This volume will be a valuable resource for courses in the Holocaust, contemporary post-Holocaust realities, as well as courses in genocide. Scholars and anyone with an interest in enriching their understanding of the Holocaust will find much within to inspire them and provoke new ideas.