Degradation of images due to atmospheric scattering is a phenomenon that causes problems in a number of imaging applications. By using knowledge of the scene geometry and a physical model of scattering, it is possible to apply a correction to remove the systematic effects of scattering. This paper describes a system that can perform atmospheric correction of colour PAL video in real time. Examples of the processed output are given for a static and an aircraft‐mounted camera, both in hazy conditions.
The librarian and researcher have to be able to uncover specific articles in their areas of interest. This Bibliography is designed to help. Volume IV, like Volume III…
The librarian and researcher have to be able to uncover specific articles in their areas of interest. This Bibliography is designed to help. Volume IV, like Volume III, contains features to help the reader to retrieve relevant literature from MCB University Press' considerable output. Each entry within has been indexed according to author(s) and the Fifth Edition of the SCIMP/SCAMP Thesaurus. The latter thus provides a full subject index to facilitate rapid retrieval. Each article or book is assigned its own unique number and this is used in both the subject and author index. This Volume indexes 29 journals indicating the depth, coverage and expansion of MCB's portfolio.
So far as the London activities of librarianship are concerned, the Winter opened propitiously when Mr. J. D. Stewart and Mr. J. Wilks addressed a goodly audience at Chaucer House, Mr. Stewart on American, and Mr. Wilks on German libraries. There was a live air about the meeting which augured well for the session. The chief librarians of London were well represented, and we hope that they will continue the good work. It was the last meeting over which Mr. George R. Bolton presided as Chairman of the London and Home Counties Branch, and he is succeeded by Mr. Wilks. Mr. Bolton has carried his office with thorough and forceful competence, and London library workers have every reason to be grateful. The election to chairmanship of the librarian of University College, London, gives the Branch for the first time a non‐municipal librarian to preside. The change has not been premature, and, apart from that question, Mr. Wilks is cultured, modest and eloquent and will do honour to his position.
The attempt to recover the international origins of social and political thought is motivated by the unsatisfactory fragmentation of modern knowledge – by its failure to…
The attempt to recover the international origins of social and political thought is motivated by the unsatisfactory fragmentation of modern knowledge – by its failure to account for the intimate connections between theory and history in general and its international dimension in particular – and seeks to overcome these divides. This article provides an analysis of the theory/history divide and its role for the fragmentation of modern knowledge. Theoretically, it shows, this divide is rooted in, and reproduced by, the epistemic foundations of modern knowledge. Historically, the modern episteme arises from a crisis of imperial politics in the 18th century. This analysis suggests that theory, history, and the international are products rather than origins of modern social and political thought. These historical origins thus do not provide the basis for more integrated forms of knowledge. They do, however, reveal how the fragmentation of knowledge itself simultaneously serves and obscures the imperialist dimension of modern politics.
The purpose of this paper is to critically review the core findings from recently published place‐based crime prevention research. The paper aims to critically evaluate…
The purpose of this paper is to critically review the core findings from recently published place‐based crime prevention research. The paper aims to critically evaluate the available evidence on the contribution of crime prevention through environmental design as a crime prevention strategy.
Large‐scale evaluations of crime prevention through environmental design (CPTED) are reviewed with a view to clarifying current knowledge on the evidence of crime prevention through environmental design.
The review concludes that there is a growing body of research that supports the assertion that crime prevention through environmental design is effective in reducing both crime and fear of crime in the community.
Although the paper may not review all the evaluations of CPTED, it nonetheless provides a detailed compilation and overview of the most significant research in the area, including an extensive and modern bibliography on the subject. Research implications will be the subject of a forthcoming paper.
CPTED is an increasingly fashionable approach and is being implemented on a global scale. Additionally, individual components such as territoriality, surveillance, maintenance, access control, activity support and target‐hardening are being widely deployed. However, the evidence currently available is inconclusive and much criticised, which effectively prevents widespread intervention and investment by central government. The paper details the difficulties associated with demonstrating the effectiveness of CPTED.
The paper concludes that although empirical proof has not been definitively demonstrated, there is a large and growing body of research, which supports the assertion that crime prevention through environmental design is a pragmatic and effective crime prevention tool. This review provides an extensive bibliography of contemporary crime prevention through environmental design and a follow‐up paper will discuss the future research priorities for it.
One of the most serious problems facing the country today is maintaining dietary standards, especially in the vulnerable groups, in the face of rising food prices. If it were food prices alone, household budgetry could cope, but much as rising food prices take from the housewife's purse, rates, fuel, travel and the like seem to take more; for food, it is normally pence, but for the others, it is pounds! The Price Commission is often accused of being a watch‐dog which barks but rarely if ever bites and when it attempts to do this, like as not, Union power prevents any help to the housewife. There would be far less grumbling and complaining by consumers if they could see value for their money; they only see themselves constantly overcharged and, in fact, cheated all along the line. In past issues, BFJ has commented on the price vagaries in the greengrocery trade, especially the prices of fresh fruit and vegetables. Living in a part of the country given over to fruit farming and field vegetable crops, it is impossible to remain unaware of what goes on in this sector of the food trade. Unprecedented prosperity among the growers; and where fruit‐farming is combined with field crops, potatoes, cabbage, cauliflower and leafy brassicas, many of the more simple growers find the sums involved frightening. The wholesalers and middle‐men are something of unknown entities, but the prices in the shops are there for all to see. The findings of an investigation by the Commission into the trade, the profit margins between wholesale prices and greengrocers' selling prices, published in February last, were therefore not altogether surprising. The survey into prices and profits covered five basic vegetables and was ordered by the present Prices Secretary the previous November. Prices for September to November were monitored for the vegetables—cabbages, brussels sprouts, cauliflowers, carrots, turnips and swedes, the last priced together. Potatoes were already being monitored.
The theory of planned behaviour (TPB) considers the interrelationship between such concepts as beliefs, attitudes, norms, intentions and behaviour (Ajzen, 1991; Ajzen and…
The theory of planned behaviour (TPB) considers the interrelationship between such concepts as beliefs, attitudes, norms, intentions and behaviour (Ajzen, 1991; Ajzen and Fishbein, 1975). Based on a review of academic sources, this paper aims to analyse the efficacy of the TPB for predicting people’s intentions when choosing a travel destination.
Surprisingly, only 15 studies were identified that used TPB to predict the choice of travel destination, though the theory has been used in other areas of tourism analysis.
Mixed results were found in the studies. Therefore, the adequacy of the TPB for predicting travellers’ intentions of choosing a destination may be questioned. However, there is nothing in the TPB suggesting that all the constructs of the model must contribute equally, significantly and simultaneously to behavioural intentions.
To achieve a more comprehensive understanding of the intentions in question, the TPB model may have to be extended to suit different settings. The decision-making process of choosing a destination is a complicated one; therefore, researchers’ attention should not only consider travellers’ intentions but also the direct effect of intentions on the actual behaviour.