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Article
Publication date: 5 September 2016

Pekka Hakkarainen

The purpose of this paper is to study vaporizers – especially the vape pen – as a new technology in cannabis use. Until now, almost all information on the use of vaporizers

Abstract

Purpose

The purpose of this paper is to study vaporizers – especially the vape pen – as a new technology in cannabis use. Until now, almost all information on the use of vaporizers or e-cigarettes for cannabis consumption has come from the internet, the popular press, and accounts by users, but not from the scientific literature. More research is needed.

Design/methodology/approach

Since scientific studies of the phenomenon are virtually non-existent, the author will also base his study on sociological reflections upon internet sites and articles published both in subcultural and mainstream media. The author will document a national estimate of the prevalence of vaping based on a recent population survey in Finland.

Findings

Vaping is an emerging trend in cannabis culture internationally. It has been seen as a healthier route of administration than traditional ways of smoking cannabis. Other images, created especially with the help of advanced high-tech machinery and stylish and fashionable designs for the vape pen, are aiming at being cool and easy to use. In Finland, 6 percent of cannabis users make regular use of a vaporizer, and around a quarter of users use one occasionally. A vape pen or e-cigarette was regularly used by 2.6 percent and occasionally by 9.1 percent of cannabis users.

Originality/value

The trend of increasing vaping and the use of new devices has not been properly recognized among researchers. The paper presents some original results from a national population survey.

Details

Drugs and Alcohol Today, vol. 16 no. 3
Type: Research Article
ISSN: 1745-9265

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Article
Publication date: 1 April 1931

C.J. Stewart

IN the later stages of the War, aerial maoœuvres at high altitude became increasingly frequent for well‐defined reasons, and, since the War, the tendency has been to…

Abstract

IN the later stages of the War, aerial maoœuvres at high altitude became increasingly frequent for well‐defined reasons, and, since the War, the tendency has been to provide certain types of aircraft capable of a rapid climb to heights in excess of 25,000 ft. Much work on high‐altitude flying has been done in this and other countries, and notably in the United States, where the present height record of 43,166 ft. is held. This climb was achieved on June 4, 1930, by Lt. Soucck, U.S.N. in an Apache aeroplane. The previous record of 41,794 ft. was held by a German pilot, Willy Neuenhofen, flying a Junkers monoplane. What these figures mean and how they were calculated need not be discussed, for the heights are so huge as to make any comment unnecessary, and when the difficulties of maintaining engine power, effective breathing, necessary warmth of the pilot, and the freedom of controls in temperatures approximating to 90 deg. F. of frost are considered, the performances stand out as unique in technical skill and physical endurance.

Details

Aircraft Engineering and Aerospace Technology, vol. 3 no. 4
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 January 1983

P.K. Ghosh

The following article was published in ‘Self‐Reliance’, the Journal of The Fertiliser (Planning & Development) India Ltd., CIFT Buildings, P.O. Sindri, Pin: 828 122…

Abstract

The following article was published in ‘Self‐Reliance’, the Journal of The Fertiliser (Planning & Development) India Ltd., CIFT Buildings, P.O. Sindri, Pin: 828 122, Bihar, India. The author recounts how they dealt with some serious corrosion problem in the naphtha vapouriser section of an ammonia plant.

Details

Anti-Corrosion Methods and Materials, vol. 30 no. 1
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 August 1951

These details and drawings of patents granted in the United States are taken, by permission of the Department of Commerce, from the ‘Official Gazette of the United States…

Abstract

These details and drawings of patents granted in the United States are taken, by permission of the Department of Commerce, from the ‘Official Gazette of the United States Patent Office’. Printed copies of the full specifications can be obtained, price 10 cents each, from the Commissioner of Patents, Washington, D.C., U.S.A. They are usually available for inspection at the British Patent Office, Southampton Buildings, Chancery Lane, London, W.C.2.

Details

Aircraft Engineering and Aerospace Technology, vol. 23 no. 8
Type: Research Article
ISSN: 0002-2667

Content available
Article
Publication date: 12 November 2020

Muniva Islam, Mohammed Ziaul Haider and Sk. Faijan Bin Halim

Mosquito problem per se arises with diverse weather patterns. With regard to mosquito diseases, people intrinsically use repellents regardless of the harmful effect. The…

Abstract

Purpose

Mosquito problem per se arises with diverse weather patterns. With regard to mosquito diseases, people intrinsically use repellents regardless of the harmful effect. The use of repellents like coil, spray, liquid vaporizer and mosquito cream triggers indoor congestion, and thereby respiratory diseases. Eventually, people have to bear high out-of-pocket costs.

Design/methodology/approach

This study has applied a stratified systematic sampling technique taking 120 adult individuals from residential and slum areas covering users and non-users of mosquito repellents of Khulna city, Bangladesh. A structured questionnaire has been used to collect data from respondents.

Findings

Econometric techniques are exercised to examine the occurrence, severity and duration of different respiratory diseases. Results exhibit that poor and less-educated slum people are more prone to face respiratory diseases compared to residential people. The health cost of slum and residential people is estimated US$ 134 and US$ 9, respectively.

Originality/value

Finally, this study underpins arranging public health programs and taking averting actions as an impetus to raise consciousness toward the negative health effect of using mosquito repellents.

Details

Journal of Economics and Development, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1859-0020

Keywords

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Article
Publication date: 1 May 2003

Fakhru ’L Razi Ahmadun, Ibrahim M. Shalu and Mat Said Aini

Major hazard installations (MHIs) are dealing with hazardous substances which exceed the threshold quantity. MHIs are characterized by tight coupling and high complexity…

Abstract

Major hazard installations (MHIs) are dealing with hazardous substances which exceed the threshold quantity. MHIs are characterized by tight coupling and high complexity. Due to their complexity, MHIs require well trained managers who have good experience at all levels to manage the operations successfully. The managements of major hazard installations play a vital role in the success or failure of their installation. The world has witnessed many incidents in major hazard installations due to failure of the management at all levels. This paper summarizes in brief the management errors for several incidents which occurred worldwide. Also, the paper reviews the management errors which led to an incident at a petrochemical plant in East Malaysia.

Details

Disaster Prevention and Management: An International Journal, vol. 12 no. 2
Type: Research Article
ISSN: 0965-3562

Keywords

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Article
Publication date: 1 September 1979

AS readers will know, from the time the Committee was appointed we were against it. It is the Bullock Committee that recommended workers for the Boardroom that we are…

Abstract

AS readers will know, from the time the Committee was appointed we were against it. It is the Bullock Committee that recommended workers for the Boardroom that we are referring to. We were convinced that the scheme was wrong in concept, that it would not work, that in the main workers did not want to burden themselves with policy decisions.

Details

Work Study, vol. 28 no. 9
Type: Research Article
ISSN: 0043-8022

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Article
Publication date: 1 March 1954

G.H. CLARK

Previous sections in this series appeared in our October, November and December, 1953, issues and dealt respectively with Properties of the Lubricant and Typical Turbine…

Abstract

Previous sections in this series appeared in our October, November and December, 1953, issues and dealt respectively with Properties of the Lubricant and Typical Turbine Lubricating Systems : Speed Governor and Emergency Control Systems ; The Hydrogen Cooled Alternator. Part Five will deal with the Laboratory Evaluation of Turbine Oils.

Details

Industrial Lubrication and Tribology, vol. 6 no. 3
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 1 June 1958

In an aircraft including a tunnel‐shaped aerodynamic component of substantial thickness having two walls, to wit an internal one and an external one, along which two…

Abstract

In an aircraft including a tunnel‐shaped aerodynamic component of substantial thickness having two walls, to wit an internal one and an external one, along which two distinct gaseous streams flow respectively, the combination of a plurality of spoilers distributed along a transverse section of said component, means located inside said component for holding each of said spoilers adjustably with respect to said component, an arcuate member in the form substantially of a circular are housed in said component concentrically therewith, the ends of said member being pivoted to said component about a common axis transverse to the axis of said tunnel‐shaped component, said member being rigid with said spoiler holding means, and control means operatively connected with the central portion of said member for pivoting said member about said common axis.

Details

Aircraft Engineering and Aerospace Technology, vol. 30 no. 6
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 July 1940

In an annular cowling system for aircraft power plants, the aircraft including a wall and an engine mounting structure extending forwardly thereof to the forward end of…

Abstract

In an annular cowling system for aircraft power plants, the aircraft including a wall and an engine mounting structure extending forwardly thereof to the forward end of which an engine is adapted to be secured, braces on the wall and structure, longitudinal rails carried by said braces, circumferentially spaced relative to one another, and a plurality of individually structurally integral cowl segments disposed around said braces and detachably carried thereby, whereby the cowl segments are free of contact with and support by such a mounted engine.

Details

Aircraft Engineering and Aerospace Technology, vol. 12 no. 7
Type: Research Article
ISSN: 0002-2667

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