The application of experimental data to blade wake interaction noise prediction

Blade wake interaction noise (BWI) has been defined as the broadband noise generated by the ingestion of turbulent trailing tip vortices by helicopter rotors. This has been shown to be the dominant contributor to the subjectively important part of the acoustic spectrum for the approach stage of a helicopter flyover. A prediction method for BWI noise based on the calculated trailing vortex trajectories has been developed and estimates of the vortex turbulence have been made. These measurements were made on a trailing vortex from a split wing arrangement and did not give the spectrum of the velocity fluctuations. A recent experiment carried out to measure the turbulence associated with a trailing vortex and the application of the results to BWI noise prediction is described

Hay fever : its cause and treatment in the light of recent investigations

It folìovs from tisis short study of Dunbar's work and results that the opinion. of Eeard and others that a specific would never be 1o_. id to =revert or relieve hay fever all cases, can fortunately be now believed to be false. The exciting cause appears from a consideration of the foregoih to Le a similar, if not an iridentical one, for the disease wherever it occurs, and therefore the antitoxin which neutralises this cause - this toxin - outside the body, so long as the toxin remains l o a l on the mucous membranes and there- fore accessible. Through these recent researches science has onìee mere given to practical medicine a valuable remedial agent; in this case for a disease which .reviousiy w7.s one of the most disnppointin,^; in treatment it is to be hoped that the value of antitoxin serum treatment will be yet more widely test eat in tile. coming hay fever period, and the results carefully recorded, in orf_er that stat i'tics drawn from a very l' rge nul..ser of cases may be o'tained and the ques ,lai of hay fever's etiology and therapeutics be set upon a still surer foundation

Observations on anencephaly

An apology may seem necessary at the outset for choosing the subject of this thesis from the ever seductive field of the extraordi.nary and the anomalous,when the medical curriculum abounds in 'suggestions of topics which might appear to have a greater claim on the attention, if. only from the standpoint of their more obvious practical utility. Interest and opportunity plead in explanation,an interest awakened by my being privilege to attend the first series of lectures delivered on Antenatal Pathology, by Br. Hallantyne in the University of Edinburgh, and opportunity by the provision of material through the kindness of. Prof. Leith and the Curators of the Pathological museum of the University of Birmingham where my attention was invited to the Teratelogiual collection and where some unmounted specimens of anencephaly were placed at my disposal for examination

Public perceptions of sharks: Gathering support for shark conservation

With increasing evidence of the destructive impacts of human activities on the ocean there is a growing call for stronger public engagement in marine governance. An understanding of marine issues and pro-environmental values are key elements that influence an individual[U+05F3]s engagement in conservation and pro-environmental behaviour. This paper presents a study on public perceptions of sharks and shark conservation in the UK. The study investigated knowledge of and attitudes towards sharks of a group of individuals with a clear interest in the marine environment, as well as possible factors that might influence their perceptions of sharks, in order to make recommendations on how to foster engagement in shark conservation. The key finding was that important prerequisites for engagement in shark conservation exist among parts of the UK public. However, this does not seem to be enough to motivate actual engagement. The study discusses a number of specific challenges with regard to sharks which might be influencing the way in which society connects to shark related issues. It concludes with priority recommendations for further investigation into potential catalysts for public engagement in shark conservation. © 2014 Elsevier Ltd

Marine governance in the English Channel (La Manche): Linking science and management.

The English Channel is one of the world's busiest sea areas with intense shipping and port activity juxtaposed with recreation, communications and important conservation areas. Opportunities for marine renewable energy vie with existing activities for space. The current governance of the English Channel is reviewed and found to lack integration between countries, sectors, legislation and scientific research. Recent developments within the EU's marine management frameworks are significantly altering our approach to marine governance and this paper explores the implications of these new approaches to management of the English Channel. Existing mechanisms for cross-Channel science and potential benefits of an English Channel scale perspective are considered. In conclusion, current management practices are considered against the 12 Malawi Principles of the ecosystem approach resulting in proposals for enhancing governance of the region through science at the scale of the English Channel