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Article
Publication date: 1 January 1987

M.G.M.S. Carvalho, D.F.G. Durão and J.C.F. Pereira

A three‐dimensional computer simulation of a combustion chamber used in the glass production industry is presented. A numerical solution technique is used to solve the governing…

143

Abstract

A three‐dimensional computer simulation of a combustion chamber used in the glass production industry is presented. A numerical solution technique is used to solve the governing time‐averaged partial differential equation and the physical modelling for turbulence, combustion and thermal radiation. A two‐equation turbulence model is employed along with a combustion model based on a fast kinetics statistical approach. A radiation model is used along with the Hottel mixed grey gas model. To solve the governing differential equations an implicit technique of finite‐difference kind is applied. The economy of the computations is very considerably enhanced by the separate calculation of the burner and bulk glass combustion chamber regions, in a manner which takes account of the differing physical nature of their flows. The burner outlet region is calculated with an axisymmetric model. Such two‐dimensional calculations allowed a good resolution of the burner outlet, and provide the inlet conditions for the three‐dimensional calculations of the glass furnace. The prediction procedure is applied to an industrial glass furnace, which operates with oxy‐fuel conditions. Measurements of mean gas temperature and concentrations were performed at different locations in the furnace. The calculated flame length, temperature field and concentrations are with satisfactory agreement with the measured ones.

Details

Engineering Computations, vol. 4 no. 1
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 26 September 2018

Fatemeh Ghannadiasl

The purpose of this paper is to assess eight weeks individualized balanced low-calorie diet on anthropometric measurements and body composition in apparently healthy obese women.

341

Abstract

Purpose

The purpose of this paper is to assess eight weeks individualized balanced low-calorie diet on anthropometric measurements and body composition in apparently healthy obese women.

Design/methodology/approach

Forty apparently healthy obese women (body mass index: 27.5-40 kg/m2 and age: 18-40 years) were recruited from the nutrition clinic in the north-west of Iran, Ardabil city. Anthropometric measurements and body composition analysis were done at baseline and after the intervention.

Findings

During eight weeks, individualized balanced low-calorie diet resulted in a significant decrease in body weight (−4.0 ± 0.3 kg, p < 0.001), body mass index (−1.6 ± 0.1 kg/m2, p < 0.001), waist circumference (−2.9 ± 0.3 cm, p < 0.001), waist-to-hip ratio (−0.01 ± 0.004, p = 0.001), waist-to-height ratio (−0.02 ± 0.002, p < 0.001), per cent body fat (−1.1 ± 0.2 per cent, p < 0.001), fat mass (−2.5 ± 0.3 kg, p < 0.001), visceral fat level (−0.8 ± 0.1, p < 0.001), visceral fat area (−11.3 ± 2.3 cm2, p < 0.001), trunk mass fat (−1.2 ± 0.1 kg, p < 0.001), left arm mass fat (−0.2 ± 0.03 kg, p < 0.001), right arm mass fat (−0.2 ± 0.03 kg, p < 0.001), left leg mass fat (−0.4 ± 0.1 kg, p < 0.001), right leg mass fat (−0.4 ± 0.05 kg, p < 0.001), abdominal volume index (−1.1 ± 0.1 m2, p < 0.001), conicity index (−0.007 ± 0.002 m2/3/kg1/2, p = 0.001) and body adiposity index (1.0 ± 0.1 per cent, p < 0.001).

Research limitations implications

The limitation concerns the generalizability to the general population of obese women. Future studies should take sex differences into consideration. These studies may focus on the long-term benefits.

Originality/value

Balanced low-calorie diet-induced moderate weight loss alone may represent an effective strategy for reducing metabolic risk factors among obese women.

Details

Nutrition & Food Science, vol. 49 no. 2
Type: Research Article
ISSN: 0034-6659

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Article
Publication date: 9 April 2021

Abdorrahim Afkhamzadeh, Khaled Rahmani, Rojin Yaghubi, Mahsa Ghadrdan and Obeidollah Faraji

This study aims to conduct to determine the adverse perinatal outcomes of intimate partner violence (IPV) during pregnancy in Kurdistan, Iran.

290

Abstract

Purpose

This study aims to conduct to determine the adverse perinatal outcomes of intimate partner violence (IPV) during pregnancy in Kurdistan, Iran.

Design/methodology/approach

In a prospective cohort study, 1,080 pregnant women were categorized into 433 and 647 women, respectively, exposed and unexposed to IPV followed by 48 h post-delivery. The values of incidence rate, relative risk and corresponding 95% confidence interval were calculated for interesting outcomes.

Findings

There was a statistically significant association between IPV exposure during pregnancy and perinatal mortality, pre-term birth (PTB), intra uterine growth restriction (IUGR), premature rupture of membranes (PROM), placental abruption and low birth weight (LBW).

Social implications

Iran is a developing country with a mosaic of different ethnicities and cultures. It seems that the less developed regions of Iran, such as Kurdistan, are also culturally different from most other regions of Iran. Based on a systematic review study, the prevalence of domestic violence is estimated to be 66% (CI 95%: 55–77) in the general population of Iran. This value was 75% (CI 95%: 56–94) in western Iran, the geographic area of the study, and higher than other parts of the country. IPV during pregnancy can result in many adverse outcomes for mothers and children.

Originality/value

According to the results of this study, the occurrence of prenatal mortality, PTB, IUGR, PROM, placental abruption and LBW was significantly higher in pregnant women exposed to IPV during pregnancy compared with unexposed women. Strategies such as training the skills needed for health system staff to identify female victims of violence, counseling, treatment and referral to related specialized centers are suggested.

Details

International Journal of Human Rights in Healthcare, vol. 14 no. 5
Type: Research Article
ISSN: 2056-4902

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Article
Publication date: 26 October 2018

Frank Ekow Atta Hayford, Collins Afriyie Appiah, Taofik Al Hassan, Odeafo Asamoah-Boakye and Matilda Asante

In Ghana, the body mass index (BMI) is widely used in clinical practice in assessing weight status, but it is limited as a measure of adiposity. The purpose of this study was to…

208

Abstract

Purpose

In Ghana, the body mass index (BMI) is widely used in clinical practice in assessing weight status, but it is limited as a measure of adiposity. The purpose of this study was to compare bioelectrical impedance analysis (BIA) and body mass index (BMI) methods in determining obesity among some Ghanaians.

Design/methodology/approach

This was a cross-sectional survey involving 134 participants whose BMI were determined. Percentage body fat mass (%BF) and percentage visceral fat (%VF) were obtained by BIA using a hand-to-hand Omron body composition monitor with a weighing scale.

Findings

Based on the WHO BMI criteria, 6.0 per cent of the participants were obese. However, according to BIA 18.7 and 20.9 per cent of the participants were obese according to % BF and %VF, respectively. The BMI and %BF showed higher prevalence of obesity among female participants (8.2 and 34.4 per cent, respectively) than male participants (4.1 and 5.5 per cent, respectively), whereas for %VF, obesity was higher among male participants than female participants (26.0 per cent, 14.8 per cent). There was significant positive correlation between BMI and % BF (r = 0.604, p = 0.001); and between BMI and %VF (r = 0.555, p = 0.001).

Research limitations/implications

There are discrepancies in the prevalence of obesity in the study population as measured by BMI and BIA methods. This suggests that the BMI and BIA may not be reliable tools for assessing obesity in this population. Further studies are needed to determine the cut-offs for BMI and BIA that are associated with metabolic risk in the population. The small sample size limits the generalizability of findings of this study.

Originality/value

Body composition tends to vary by ethnicity and race; hence, it is essential to determine the appropriate tool for assessing adiposity in African populations for prompt and targeted interventions.

Details

Nutrition & Food Science, vol. 49 no. 2
Type: Research Article
ISSN: 0034-6659

Keywords

Available. Open Access. Open Access
Book part
Publication date: 29 November 2023

Abstract

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The Emerald Handbook of Research Management and Administration Around the World
Type: Book
ISBN: 978-1-80382-701-8

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Article
Publication date: 1 December 2001

Cristina Carvalho

This article is a shortened version of a Master’s dissertation for the Liverpool University Centre for Archive Studies. It deals with issues of appraisal. Such issues involve…

2394

Abstract

This article is a shortened version of a Master’s dissertation for the Liverpool University Centre for Archive Studies. It deals with issues of appraisal. Such issues involve fundamental concepts on what records are, why they are kept, and their life cycle. The answers to these questions were sought and found in the history of archives, and in the specialist literature. The theory and the methodology adopted were then applied to a case study of a recently established organisation in Lisbon, which has, at the core of its business, information in electronic format.

Details

Records Management Journal, vol. 11 no. 3
Type: Research Article
ISSN: 0956-5698

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Publication date: 18 November 2024

Alice Loureiro, Sónia Monteiro, Verónica Ribeiro and Kátia Lemos

In 2015, the United Nations approved the 2030 Agenda defining 17 Sustainable Development Goals (SDGs), and 169 targets. Among those, the target 12.6 encourages companies to adopt…

Abstract

In 2015, the United Nations approved the 2030 Agenda defining 17 Sustainable Development Goals (SDGs), and 169 targets. Among those, the target 12.6 encourages companies to adopt sustainable practices and to integrate sustainability information into their reporting cycle. Thus, the aim of this paper is to understand whether ISO certification is a determinant factor in SDGs reporting. Standalone non-financial reports of the largest Portuguese companies were collected from 2016 until 2020, obtaining a total of 119 reports from 41 companies: 27 (22.7%) of the reports corresponds to non-certified companies and 92 (77.3%) to certified ones. Through a content analysis of the non-financial reports, an SDG disclosure Index (SDG_IND) was developed, to measure the level of disclosure on SDG. A set of panel data based on a Tobit regression analysis was applied, in STATA software, using the total of observations during the period 2016–2020, to verify if the variable ISO certification explains the level of SDGs disclosure. Contrary to our expectation, we did not find significant differences between certified and non-certified companies concerning the SDG-related disclosure. As far as we are aware, previous research in SDG has not considered the linkage with ISO certification. This article aims to explore this gap by investigating differences between certified and non-certified companies, regarding SDG disclosure, as whether ISO certification is a determinant factor of such disclosure.

Details

Society and Sustainability
Type: Book
ISBN: 978-1-83608-500-3

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Care and Compassion in Capitalism
Type: Book
ISBN: 978-1-83549-149-2

Abstract

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Inquiring into Academic Timescapes
Type: Book
ISBN: 978-1-78973-911-4

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Article
Publication date: 1 July 2021

Justin F. McManus, Sergio W. Carvalho and Valerie Trifts

This study aims to explore the role of brand personality traits in explaining how different levels of brand favorability evoke affect from and forge connections to consumers.

2684

Abstract

Purpose

This study aims to explore the role of brand personality traits in explaining how different levels of brand favorability evoke affect from and forge connections to consumers.

Design/methodology/approach

The authors used a quantitative approach consisting of within-subjects (Study 1) and between-subjects (Study 2) experimental designs. Mediation analyses were tested using OLS regression with the MEMORE and PROCESS macros.

Findings

Findings suggest increases in brand excitement and sincerity to be related to differences in positive affect evoked by favorable and unfavorable brands; decreases in brand sincerity to be related to differences in negative affect between favorable and unfavorable brands (Study 1); brand competence and excitement to be related to the relationship between brand favorability and self-brand connection; and brand competence and excitement to best distinguish favorable brands from unfavorable brands (Study 2).

Originality/value

These results support the importance of brand personality traits that are considered to be universally positive and provide managers with an initial roadmap for which brand personality traits should be prioritized when communicating with consumers.

Details

Journal of Product & Brand Management, vol. 31 no. 4
Type: Research Article
ISSN: 1061-0421

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