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Article
Publication date: 1 September 2003

Samuel Nunn

As the war on terrorism escalates, police agencies are using technologies that electronically scan individuals, structures, and vehicles to identify things hidden from public…

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Abstract

As the war on terrorism escalates, police agencies are using technologies that electronically scan individuals, structures, and vehicles to identify things hidden from public scrutiny. These machines create new socio‐technical systems for police and citizens. Public policy gaps evolve when new systems give police sensory capabilities that fall outside existing procedural standards such as probable cause and reasonable suspicion. Mobile digital terminals are now common, but are also abused by police officers who run queries on vehicles without articulate suspicions. New technologies such as passive millimeter imaging that permit “X‐ray”‐like examination of individuals and structures create more potential for abuse. As these new technologies diffuse among police agencies, policies should be guided by questions about whether technologies work as designed, whether they are effective, and whether they accomplish anti‐terrorist and crime control objectives. Traditional rules for wiretapping can offer models for operating policies for the new scanning and imaging technologies.

Details

Policing: An International Journal of Police Strategies & Management, vol. 26 no. 3
Type: Research Article
ISSN: 1363-951X

Keywords

Article
Publication date: 10 November 2022

Md. Raijul Islam, Ayub Nabi Nabi Khan, Rois Uddin Mahmud, Shahin Mohammad Nasimul Haque and Md. Mohibul Islam Khan

This paper aims to evaluate the effects of banana (Musa) peel and guava (Psidium guajava) leaves extract as mordants on jute–cotton union fabrics dyed with onion skin extract as a…

Abstract

Purpose

This paper aims to evaluate the effects of banana (Musa) peel and guava (Psidium guajava) leaves extract as mordants on jute–cotton union fabrics dyed with onion skin extract as a natural dye.

Design/methodology/approach

The dye was extracted from the outer skin of onions by boiling in water and later concentrated. The bio-mordants were prepared by maceration using methanol and ethanol. The fabrics were pre-mordanted, simultaneously mordanted and post-mordanted with various concentrations according to the weight of the fabric. The dyed and mordanted fabrics were later subjected to measurement of color coordinates, color strength and colorfastness to the washing test. Furthermore, the dyed samples were characterized by Fourier transform infrared, and different chemical bonds were analyzed by X-ray photoelectron spectroscopy analysis.

Findings

Significant improvement was obtained in colorfastness and color strength values in various instances using banana peel and guava leaves as bio mordants. Post-mordanted with banana peel provided the best results for wash fastness. Better color strength was achieved by fabric post-mordanted with guava leave extracts.

Originality/value

Sustainable dyeing methods of natural dyes using banana peel and guava leaves as bio mordants were explored on jute–cotton union fabrics. Improvement in colorfastness and color strength for various instances was observed. Thus, this paper provides a promising alternative to metallic salt mordants.

Details

Pigment & Resin Technology, vol. 53 no. 3
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 4 January 2022

Shayma T.G. Al-Sahlany and Alaa K. Niamah

The purpose of this study was to assess the bacterial viability, antioxidative activity, antimutagenicity and sensory evaluation of fermented onion types by using probiotic…

Abstract

Purpose

The purpose of this study was to assess the bacterial viability, antioxidative activity, antimutagenicity and sensory evaluation of fermented onion types by using probiotic starters after fermentation at 37 °C for 24 hours and storage in the refrigerator for 28 days.

Design/methodology/approach

For onion fermentation, Lactobacillus acidophilus (LA-5), Bifidobacterium bifidum (BB-12), and Streptococcus thermophilus (ST) were utilised. This research was conducted on three types of onion: white onion, red onion and scallion. With a 5% brine solution, the onions were sliced into 3-5 cm long and 1-2 cm wide slices. The process of fermentation was achieved by adding 2% (108 CFU/ gm) of fresh probiotic starter and incubating it for 24 hours at 37 °C. The fermented onion samples were kept in the refrigerator for 28 days. After fermentation and storage, the pH and total acidity were estimated, the vitality of probiotic bacteria was evaluated in samples of the onion species. The Gas chromatography-mass spectrometry (GC-MS) technique was used to identify the bioactive components in fermented onion types. The antioxidant activity of fermented onions was measured using the 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) radical scavenging activity assay and the hydroxyl radical scavenging activity test. The Ames test was used to detect the antimutagenicity of fermented onion samples.

Findings

After fermentation, the fermented scallion (p = 0.036) has the highest vitality of all the starter bacteria species. The fermentation of onion types produced a pH of between 4.1–4.7 and 0.19–0.23% total acidity, which is in the range of reduced 3.1–3.5 pH values and 0.42–0.63% total acidity after 28 days. The viability of Lactobacillus acidophilus and Bifidobacterium bifidum in fermented scallions was Log. 7.79 and 7.57 CFU/gm. The GC-MS technique found 14 bioactive compounds in fermented white onions and 13 compounds in fermented white onions, with 15 compounds in scallion fermentation. The majority of these bioactive compounds are strong antioxidants. The antioxidant properties of fermented scallion significantly increased after 28 days of storage time, showing an inhibitory effect on the DPPH assay (p = 0.02) and the scavenging activity of the hydroxyl radical assay (p = 0.01). Sensory evaluation tests revealed that the fermented scallion was a suitable product in terms of appearance, aroma and overall acceptability.

Originality/value

Commercially accessible probiotic foods account for a sizable portion of the consumer market. Furthermore, as consumer interest in healthy eating grows, so does demand for plant-based goods. All onion types fermented with probiotic bacteria have many chemical compounds that have both antioxidant and carcinogenic activity. The fermented scallion onion sample was significantly superior to the rest of the other types of onions.

Details

Nutrition & Food Science , vol. 52 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 27 September 2011

Marios Poulos, Nikolaos Korfiatis and George Bokos

This paper aims to present the semantic content identifier (SCI), a permanent identifier, computed through a linear‐time onionpeeling algorithm that enables the extraction of…

Abstract

Purpose

This paper aims to present the semantic content identifier (SCI), a permanent identifier, computed through a linear‐time onionpeeling algorithm that enables the extraction of semantic features from a text, and the integration of this information within the permanent identifier.

Design/methodology/approach

The authors employ SCI to propose a mechanism for simultaneously checking the authenticity and degrees of similarity between different information objects, and present an empirical investigation of the method. A management scenario for the control of the authentication process and the detection of the degree of violation of documents is proposed.

Findings

Such a mechanism could be adopted as a component of libraries' strategy for the protection of the copyrights for documents published on the web.

Practical implications

The use of the proposed numeric code can be utilised efficiently as a constituent part of the digital object identifier (DOI) system, making its computation more efficient and meaningful.

Originality/value

The identifier proposed in the paper can result in a more efficient index for identifying and retrieving objects in a digital library, as well as online repositories and commercial applications that can handle information retrieval requests more effectively.

Article
Publication date: 1 March 1997

S. Jones, S. Walker, M. Gatford and T. Do

At the heart of the Okapi system is a formula referring to some half a dozen variables, which estimate the probability that a given document is relevant to a given query. User…

Abstract

At the heart of the Okapi system is a formula referring to some half a dozen variables, which estimate the probability that a given document is relevant to a given query. User interface design for Okapi aims to present its search capabilities as clearly and simply as possible. But between the basic formula and the simple interface lie several layers of complex software, which must support both probabilistic and non‐probabilistic retrieval functions, and combine them in a logical and consistent way. We describe the evolution, and some of the functions, of these software layers.

Details

Journal of Documentation, vol. 53 no. 1
Type: Research Article
ISSN: 0022-0418

Keywords

Article
Publication date: 1 August 2011

N.F. Ali, R.S.R.EL. Mohamedy and E.M. El- Khatib

Natural dyes extracted from Cassia fistula and onion peels are used to dye wool that is pretreated with chitosan by using tannic acid as a mordant. The effect of the mordant…

Abstract

Natural dyes extracted from Cassia fistula and onion peels are used to dye wool that is pretreated with chitosan by using tannic acid as a mordant. The effect of the mordant concentration on the color strength (K/S) is discussed. The results obtained indicated that K/S increases after treatment with chitosan. It is also noticed that K/S increases with an increasing concentration of chitosan. K/S also increases with an increase of mordant concentration until 4% and then decreases. The effect of the dye bath pH, dyeing temperature and dyeing time are also studied. The K/S and dye uptake exhibit high values. Good fastness properties of the dyed fabric are achieved. The antimicrobial activity of chitosan-treated wool fabric is tested in accordance to diffusion agents. Test organisms, such as Escherichia coli, Bacillus subitilus Pseudomons aeruginosa and Staphylococcus aureus are used and the results indicate that the samples treated with a lower concentration of chitosan exhibit a smaller inhibition zone.

Details

Research Journal of Textile and Apparel, vol. 15 no. 3
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 22 February 2008

Heiko Tillwick and Martin S. Olivier

This paper aims to propose an anonymous web‐browsing protocol that harnesses some of the advantages of store‐and‐forward anonymity solutions whilst retaining some of the…

Abstract

Purpose

This paper aims to propose an anonymous web‐browsing protocol that harnesses some of the advantages of store‐and‐forward anonymity solutions whilst retaining some of the interactive properties of web browsing. Anonymity research on high latency, store‐and‐forward mediums such as e‐mail have led to comparatively well‐researched anonymity technologies. However, similar achievements have proven to be more difficult for low‐latency communications such as web browsing.

Design/methodology/approach

A review of existing anonymity solutions notes the advantages of mix technologies versus the advantages offered by Onion Routing. A solution is presented that features a combined approach of both solutions.

Findings

The proposed protocol differentiates between web requests and web responses – a request is treated as a store‐and‐forward message whilst the response is handled as a data stream.

Originality/value

The solution described can be used by existing anonymous web browsing solutions in order to improve the level of anonymity whilst minimising the overhead of anonymously distributing web content.

Details

Online Information Review, vol. 32 no. 1
Type: Research Article
ISSN: 1468-4527

Keywords

Article
Publication date: 20 April 2012

Jeffrey R. Cornwall and William J. Dennis

This paper aims to examine some basic pathways to bring issues of public policy into entrepreneurship classes.

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Abstract

Purpose

This paper aims to examine some basic pathways to bring issues of public policy into entrepreneurship classes.

Design/methodology/approach

The paper looks at policy issues related to taxation, regulation and employment which all offer important topics that can be integrated into a variety of standard entrepreneurship courses.

Findings

Integrating policy issues into entrepreneurship classes is important to assist students understand the importance of compliance, to see the linkages to their broader university education, and to help make them more informed citizens.

Originality/value

This paper hopes to foster more integration of public policy into both the entrepreneurship classroom and into more traditional streams of entrepreneurship research.

Details

Journal of Entrepreneurship and Public Policy, vol. 1 no. 1
Type: Research Article
ISSN: 2045-2101

Keywords

Article
Publication date: 1 August 2001

Douglas B. Johnson and Granger Macy

A model is developed which allows an organization to assess its environmental perception and how that perception may impact its response to stakeholders. The model differentiates…

3150

Abstract

A model is developed which allows an organization to assess its environmental perception and how that perception may impact its response to stakeholders. The model differentiates an organization’s socioecological responsibility across four dimensions for placement on Colby’s five‐paradigm continuum, which ranges between the frontier economic paradigm and new ecological paradigm. This article provides a useful means of assessing the ecological paradigm utilized by firms and offers criteria that may assist the organization in developing a competitively valuable environmental stance.

Details

Journal of Organizational Change Management, vol. 14 no. 4
Type: Research Article
ISSN: 0953-4814

Keywords

Article
Publication date: 17 August 2012

Susanne Wiatr Borg and Per Vagn Freytag

This paper aims to offer a two‐dimensional holistic framework for analyzing interpersonal relationships in the sales process in a business‐to‐business (B2B) context.

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Abstract

Purpose

This paper aims to offer a two‐dimensional holistic framework for analyzing interpersonal relationships in the sales process in a business‐to‐business (B2B) context.

Design/methodology/approach

This paper takes the form of a literature study of the key concept, i.e. “interpersonal relationship”, three behavior‐based theoretical streams, and an eclectic range of existing models within the existing buyer‐seller literature.

Findings

The framework presented suggests that interpersonal relationships are comprehensible from four perspectives or levels in a sales process – i.e. environment, firm, sales cycle, and sales characteristics. The finding illustrated in the framework is that, in order to understand and manage interpersonal relationships in a sales process effectively, it is valuable to apply a holistic picture, thus including all four levels. This is because dynamic forces exist not only within each layer, but also between layers. In addition, it was found that existing normative directions that focus on managing interpersonal relationships in a sales process are currently contingent upon the level at which the analysis takes place. The findings suggest that future normative directions should instead apply a multi‐perspective approach.

Practical implications

The helicopter view framework of interpersonal relationships in a sales process presented here enables businesses to understand and optimize the interpersonal relationship strategy in their selling process.

Originality/value

By adopting a cross‐paradigm philosophy and a multi‐method approach, this paper offers a new, comprehensive framework for understanding a B2B selling process that focuses on interpersonal relationships. Furthermore, it presents a normative relationship management overview relevant to both academics and practitioners.

1 – 10 of 363