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The purpose of this paper is to provide an analysis on using two non‐conventional nonlinear estimating filters compared to the traditional linearized extended Kalman filter (EKF). This analysis will look at two state‐of‐the‐art applications and will provide insight to the problems associated with these applications.

The approach taken was to simulate both applications with three different filter designs: EKF, unscented Kalman filter, and particle filter. After results and explanations are given for both applications, then there is a comparison of results between the two applications to compare and contrast their findings.

This research shows how critical it is when selecting a filter for different applications. Not only is tuning the filter properly a necessity, but choosing a filter that is optimum for the application also greatly affects the accuracy and precision of the results.

As these filter methods are proven feasible for these applications, testing can move beyond simulation. Further research could compare other nonlinear filters to these results to determine if a better estimation technique exists.

This paper shows a lot of the issues one must face when choosing an estimation technique for their application as well as the impact the technique can have on the outcome.

This paper clearly describes the decision‐making criteria in regards to these two specific applications. These two applications are current technological problems that many are trying to solve. This paper shows where and why errors in calculations occur. It also offers insight into different ways to solve these problems when the specific application is taken into account.

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.

Migration from third‐world and low‐income countries to high‐income Western countries presents significant challenges for individuals and families, and for health service providers in the receiving societies. Cultural conflicts related to preferred body size/shape and parenting practices, together with differential intergenerational rates and styles of acculturation, can affect nutritional and lifestyle choices and be associated with high rates of childhood obesity. Using African cultures as an example, this paper examines these issues. It concludes that, in designing and implementating obesity prevention programmes, health service providers need to understand these factors and how they play out.

Much to the relief of everyone, the general election has come and gone and with it the boring television drivel; the result a foregone conclusion. The Labour/Trade Union movement with a severe beating, the worst for half a century, a disaster they have certainly been asking for. Taking a line from the backwoods wisdom of Abraham Lincoln — “You can't fool all the people all the time!” Now, all that most people desire is not to live easy — life is never that and by the nature of things, it cannot be — but to have a reasonably settled, peaceful existence, to work out what they would consider to be their destiny; to be spared the attentions of the planners, the plotters, provocateurs, down to the wilful spoilers and wreckers. They have a right to expect Government protection. We cannot help recalling the memory of a brilliant Saturday, but one of the darkest days of the War, when the earth beneath our feet trembled at the destructive might of fleets of massive bombers overhead, the small silvery Messerschmits weaving above them. Believing all to be lost, we heaped curses on successive Governments which had wrangled over rearmament, especially the “Butter before Guns” brigade, who at the word conscription almost had apoplexy, and left its people exposed to destruction. Now, as then, the question is “Have they learned anything?” With all the countless millions Government costs, its people have the right to claim something for their money, not the least of which is the right to industrial and domestic peace.

Public administration theory suggests that increased accountability in the public sector influences the auditor to lower materiality levels; thereby increasing the audit sample size; which decreases the likelihood of an inappropriate opinion. Accounting theory posits that engagement risk leads the auditor to lower materiality levels to decrease the likelihood of rendering an inappropriate opinion, in an effort to avoid litigation. The results of this study indicate, that in public sector entities, accountability guides the auditors’ materiality decisions.

The main theme of this special volume is the colonial state and its governmental practices. This chapter introduces and contextualizes the contributions by providing a brief induction to recent developments within the study of the colonial state. It then presents the contributions under three perspectives which represent separate yet interrelated themes relevant for the understanding of the colonial state: practices, violence, and agency. Hereby, we also accentuate the value of a non-state-centric approach to the analysis of the colonial state.

Frank cases of scurvy are easily recognised and are satisfactory to treat. Even in Western Europe cases are met with under ordinary conditions of life, but mostly in poor countries among those living alone and not caring for themselves properly. It has been advanced that while frank scurvy is admittedly practically unknown in civilised countries, yet minor degrees of vitamin C deficiency are responsible for much vague ill‐health and disease other than scurvy. This theory is difficult to prove, and proof is lacking.

On the other hand the people of Canada have lived essentially on the same type of diet as that employed in the northern United States. It includes all the products of field and garden with which we are familiar, together with meats in liberal amounts and dairy products in moderate quantities. The latter is the kind of diet which supports the civilization of England, and also the most progressive European countries as well as that of the northern United States and all other parts of the world which have been peopled by colonization from European stock, wherever the climate will permit.

LIBRARIANS in Britain stand at the threshold of great possibilities. Having passed through the ages of the ecclesiastical library, the rich collector's private library, the academic institutional library, and the rate‐supported public library—all general libraries —they have reached the age of the special library. The next will be that of the co‐ordinated, co‐operative library service.