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Article
Publication date: 24 October 2023

Jared Nystrom, Raymond R. Hill, Andrew Geyer, Joseph J. Pignatiello and Eric Chicken

Present a method to impute missing data from a chaotic time series, in this case lightning prediction data, and then use that completed dataset to create lightning prediction…

Abstract

Purpose

Present a method to impute missing data from a chaotic time series, in this case lightning prediction data, and then use that completed dataset to create lightning prediction forecasts.

Design/methodology/approach

Using the technique of spatiotemporal kriging to estimate data that is autocorrelated but in space and time. Using the estimated data in an imputation methodology completes a dataset used in lightning prediction.

Findings

The techniques provided prove robust to the chaotic nature of the data, and the resulting time series displays evidence of smoothing while also preserving the signal of interest for lightning prediction.

Research limitations/implications

The research is limited to the data collected in support of weather prediction work through the 45th Weather Squadron of the United States Air Force.

Practical implications

These methods are important due to the increasing reliance on sensor systems. These systems often provide incomplete and chaotic data, which must be used despite collection limitations. This work establishes a viable data imputation methodology.

Social implications

Improved lightning prediction, as with any improved prediction methods for natural weather events, can save lives and resources due to timely, cautious behaviors as a result of the predictions.

Originality/value

Based on the authors’ knowledge, this is a novel application of these imputation methods and the forecasting methods.

Details

Journal of Defense Analytics and Logistics, vol. 7 no. 2
Type: Research Article
ISSN: 2399-6439

Keywords

Article
Publication date: 2 February 2015

Claudia Foerster, Guillermo Figueroa and Eric Evers

A quantitative microbiological risk assessment (QMRA) was developed to estimate the probability of getting listeriosis as a consequence of chicken and beef consumption in Chile…

Abstract

Purpose

A quantitative microbiological risk assessment (QMRA) was developed to estimate the probability of getting listeriosis as a consequence of chicken and beef consumption in Chile. The paper aims to discuss these issues.

Design/methodology/approach

As a first step a deterministic retail-to-home model was constructed for the Chilean susceptible population, including storage, cross-contamination and cooking. Next, two probabilistic models were developed, including variability and/or the uncertainty of some of the parameters. The probabilistic models were analyzed by Monte Carlo simulations with 100,000 iterations.

Findings

Of the total susceptible population used in the model (2.81 million people), the deterministic model estimated 11 and two listeriosis cases because of beef and poultry consumption, respectively and the variability model estimated a mean of 322 and 7,546 cases for beef and poultry consumption, respectively. The uncertainty analysis showed large ranges, with realistic estimates made with an initial concentration of Listeria monocytogenes of 0.04-1 CFU/g and a dose-response parameter r ranging from 10-14 to 10-10.

Research limitations/implications

The lack of information was the major limitation of the model, so the generation of it has to be a priority in Chile for developing less uncertain risk assessments in the future.

Practical implications

Raw animal products can be the cause of listeriosis cases if they are not stored, cooked and/or handled properly. Consumer education seems to be an essential factor for disease prevention.

Originality/value

This is the first QMRA made in Chile, and also the first study of listeriosis in non-processed meat.

Details

British Food Journal, vol. 117 no. 2
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 1 February 1977

The British countryman is a well‐known figure; his rugged, obstinate nature, unyielding and tough; his part in the development of the nation, its history, not confined to the…

Abstract

The British countryman is a well‐known figure; his rugged, obstinate nature, unyielding and tough; his part in the development of the nation, its history, not confined to the valley meadows and pastures and uplands, but nobly played in battles and campaigns of long ago. His “better half”—a term as true of yeoman stock as of any other—is less well known. She is as important a part of country life as her spouse; in some fields, her contribution has been even greater. He may grow the food, but she is the provider of meals, dishes, specialties, the innovating genius to whom most if not all British food products, mostly with regional names and now well‐placed in the advertising armentarium of massive food manufacturers, are due. A few of them are centuries old. Nor does she lack the business acumen of her man; hens, ducks, geese, their eggs, cut flowers, the produce of the kitchen garden, she may do a brisk trade in these at the gate or back door. The recent astronomical price of potatoes brought her a handsome bonus. If the basic needs of the French national dietary are due to the genius of the chef de cuisine, much of the British diet is due to that of the countrywoman.

Details

British Food Journal, vol. 79 no. 2
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 April 1961

Correspondents drew attention in the last issue of the B.F.J. to disparities in legal procedure for offences of a similar nature under the Food and Drugs Act, 1955. These will…

Abstract

Correspondents drew attention in the last issue of the B.F.J. to disparities in legal procedure for offences of a similar nature under the Food and Drugs Act, 1955. These will have been apparent from the reading of reports of legal proceedings contained in the columns of this Journal. While many authorities lay charges under Section 2 of the Act for foreign matter found in food, others risk their cases under Section 8, notwithstanding the difficulty of proof under this section. As Dr. Eric Wood pointed out in his letter, the presence of animal excreta (sterilized by the baking process, for example) does not necessarily render food unfit for human food and reported cases on appeal tend to support this. When some year's ago it was held (in a civil claim, it is true) that Trichinella spiralis in pork, which would be subsequently cooked, did not render it unfit to be sold for food, we asked in editorial comment how long it would be before some similar kind of interpretation began to creep into food and drugs law.

Details

British Food Journal, vol. 63 no. 4
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 February 1974

The large, all‐purpose local authorities established by the Local Government Re‐organization Act, 1972, for England and Wales—Scottish local government re‐organization is yet to…

Abstract

The large, all‐purpose local authorities established by the Local Government Re‐organization Act, 1972, for England and Wales—Scottish local government re‐organization is yet to be completed—are operative; members have long since been elected and organization and staffing, if not complete, at least ready to commence. It is certainly the greatest upheaval since urban and rural sanitary authorities were set up about the middle of the last century. The last change of any magnitude was in 1934; small, however, compared with 1974. At that time, there were 62 county councils, 83 county boroughs and nearly 300 municipal boroughs, 29 metropolitan boroughs, more than 600 urban and about 500 rural districts; roughly 1,600 local authorities. The tremendous reduction in authorities by the present re‐organization illustrates the extent of the upheaval.

Details

British Food Journal, vol. 76 no. 2
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 January 1978

In the Court of Appeal last summer, when Van Den Berghs and Jurgens Limited (belonging to the Unilever giant organization) sought a reversal of the decision of the trial judge…

184

Abstract

In the Court of Appeal last summer, when Van Den Berghs and Jurgens Limited (belonging to the Unilever giant organization) sought a reversal of the decision of the trial judge that their television advertisements of Stork margarine did not contravene Reg. 9, Margarine Regulations, 1967—an action which their Lordships described as fierce but friendly—there were some piercing criticisms by the Court on the phrasing of the Regulations, which was described as “ridiculous”, “illogical” and as “absurdities”. They also remarked upon the fact that from 1971 to 1975, after the Regulations became operative, and seven years from the date they were made, no complaint from enforcement authorities and officers or the organizations normally consulted during the making of such regulations were made, until the Butter Information Council, protecting the interests of the dairy trade and dairy producers, suggested the long‐standing advertisements of Reg. 9. An example of how the interests of descriptions and uses of the word “butter” infringements of Reg. 9. An example af how the interests of enforcement, consumer protection, &c, are not identical with trade interests, who see in legislation, accepted by the first, as injuring sections of the trade. (There is no evidence that the Butter Information Council was one of the organizations consulted by the MAFF before making the Regulations.) The Independant Broadcasting Authority on receiving the Council's complaint and obtaining legal advice, banned plaintiffs' advertisements and suggested they seek a declaration that the said advertisements did not infringe the Regulations. This they did and were refused such a declaration by the trial judge in the Chancery Division, whereupon they went to the Court of Appeal, and it was here, in the course of a very thorough and searching examination of the question and, in particular, the Margarine Regulations, that His Appellate Lordship made use of the critical phrases we have quoted.

Details

British Food Journal, vol. 80 no. 1
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 May 1977

The case, briefly reported in the last issue of BFJ, an appeal to a Milk and Dairies Tribunal arising out of a local authority's refusal to grant a licence to a milk distributor…

Abstract

The case, briefly reported in the last issue of BFJ, an appeal to a Milk and Dairies Tribunal arising out of a local authority's refusal to grant a licence to a milk distributor because he failed to comply with a requirement that he should provide protective curtains to his milk floats, was a rare and in many ways, an interesting event. The Tribunal in this case was set up under reg. 16(2) (f), Milk (Special Designation) Regulations, 1963, constituted in accordance with Part I, clause 2 (2), Schedule 4 of the Regulations. Part II outlines procedure for such tribunals. The Tribunal is similar to that authorized by S.30, Food and Drugs Act, 1955, which deals with the registration of dairymen, dairy farms and farmers, and the Milk and Dairies (General) Regulations, 1959. Part II, Schedule 2 of the Act provided for reference to a tribunal of appeals against refusal or cancellation of registration by the Ministry, but of producers only. A local authority's power to refuse to register or cancellation contained in Part I, Schedule 2 provided for no such reference and related to instances where “public health is or is likely to be endangered by any act or default” of such a person, who was given the right of appeal against refusal to register, etc., to a magistrates' court. No such limitation exists in respect of the revoking, suspending, refusal to renew a licence under the Milk (Special Designation) Regulations, 1963; an appeal against same lies to the Minister, who must refer the matter to a tribunal, if the person so requests. This occurred in the case under discussion.

Details

British Food Journal, vol. 79 no. 5
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 May 1974

The growing range of EEC Directives and Regulations for food products, some of which have never been subject to statutory control in this country, with compositional standards…

Abstract

The growing range of EEC Directives and Regulations for food products, some of which have never been subject to statutory control in this country, with compositional standards, and in particular, prescribed methods of analysis — something which has not featured in the food legislative policies here — must be causing enforcement authorities and food processors to think seriously, if as yet not furiously. Some of the prescribed methods of analysis are likely to be less adaptable to modern processing methods of foods and as Directives seem to be requiring more routine testing, there is the matter of cost. Directive requirements are to some extent negotiable — the EEC Commission allow for regional differences, e.g., in milk and bread — but it has to be remembered that EEC Regulations bind Member‐states from the date of notification by the Commission, over‐riding the national law. Although not so frequently used for food legislation, they constitute one of the losses of sovereign power, paraded by the anti‐market lobby. Regulations contain usual clauses that they “shall enter into force on the day following publication in the Official Journal of the European Communities” and that they “shall be binding in their entirety and directly applicable in all Member States”.

Details

British Food Journal, vol. 76 no. 5
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 February 1976

Government appointed and sponsored committees of every description—select, ad hoc, advisory, inquiry—such a prominent feature of the public scene since the last War, are…

Abstract

Government appointed and sponsored committees of every description—select, ad hoc, advisory, inquiry—such a prominent feature of the public scene since the last War, are understandable, even acceptable, reflect the urgency of the times in which we live. In the gathering gloom of more recent twilight years, they have flourished inordinately, especially in the socio‐political field, where most of their researches have been conducted. Usually embellished with the name of the figure‐head chairman, almost always expensively financed, they have one thing in common—an enormous output of words, telling us much of what we already know. So much of it seems dull, meaningless jargon, reflecting attitudes rather than sound, general principles.

Details

British Food Journal, vol. 78 no. 2
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 February 1978

Consideration of the fast‐growing number of food hygiene prosecutions up and down the country, almost all of them of a most serious nature, shows that it is the food preparing…

Abstract

Consideration of the fast‐growing number of food hygiene prosecutions up and down the country, almost all of them of a most serious nature, shows that it is the food preparing room, the kitchen, which is indeed the hub of the matter. Most of the charges result from its condition and the practices carried on within its walls, all‐too‐often enclosing a cramped space, ill‐equipped and difficult to keep clean. Its state in many prosecutions clearly contrasts badly with the soft lights and alluring elegance of the dining rooms in hotels and catering establishments. Yet, who would say that the kitchen is not the most important room in the home, in the hotel and every food‐preparing place? It has been so from time immemorial. House design has suffered severely with the need to cut building costs and the kitchen has suffered most; in small houses, it seems little more than a cupboard, a box‐room, an alcove. Is it surprising, then, that age‐old kitchen arts have degenerated? In the farmhouse, the country homes of the affluent, the “downstairs” of the town house, the kitchen was among the largest rooms in the house, as befitted all the activity that went on there. In the USA, the modern, comfortable home even of relatively humble folk the kitchen is phenomenally large; room for everything and everyone.

Details

British Food Journal, vol. 80 no. 2
Type: Research Article
ISSN: 0007-070X

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