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Article
Publication date: 1 June 2003

R. Brahme and A. Mahdavi

It is important to provide building performance feedback to the designer as early as possible in the design process. However, many aspects of building performance are…

269

Abstract

It is important to provide building performance feedback to the designer as early as possible in the design process. However, many aspects of building performance are significantly affected by the design of the building’s technical systems (e.g., heating, airconditioning), which are typically configured in detail only in the later stages of design. The challenge is thus to find a method to use detailed simulation tools even during the early stages of design when values for many of the variables for the building’s technical systems are not yet available. In this paper, we demonstrate how this problem can be partially solved by use of differential representation for building and technical system, homology‐based automatic mapping of relevant information from the building to the technical system representation, and generative design agents which, with a minimal user‐input, can design and model the technical system. We conclude the paper with illustrative examples of detailed performance analysis of complex buildings and their heating, ventilation, and air‐conditioning systems, performed in early stages of design.

Details

Construction Innovation, vol. 3 no. 2
Type: Research Article
ISSN: 1471-4175

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Article
Publication date: 26 September 2008

Edwin H.W. Chan, K.S. Lam and W.S. Wong

The purpose of this paper is to evaluate the indoor environmental quality among residential buildings in dense urban living environment, after the outbreak of Severe Acute…

1663

Abstract

Purpose

The purpose of this paper is to evaluate the indoor environmental quality among residential buildings in dense urban living environment, after the outbreak of Severe Acute Respiratory Syndrome (SARS), which called for a review on the relationship between health issues and the authors' built facilities.

Design/methodology/approach

Environmental tests include thermal comfort, noise, daylight and air quality inside the residence of typical housing units were carried out. Based on inferences drawn from test results, the paper developed systematic conclusions.

Findings

It was observed that most of the occupants (over 70 per cent of 125 households) were tolerating the higher air temperature and dimmer daylight inside their residence, which was proven to fall behind Hong Kong Standard. On the contrary, people reflected that they were also trying to abate noise and dust concentration in their daily life.

Research limitations/implications

Owing to the flat occupants' exclusive property rights in law, there were limited access to the residents' flats and only 32 occupants out of 125 allowed us to conduct the survey. Yet, the data set was justified.

Practical implications

The results provides practical guidance for the design of future housing to enhance health and comfort of occupants.

Originality/value

Originality of the findings is based on on‐site data collected in dense urban housing condition. Rating data were also collected from the occupants concerned about their habituation conditions in Hong Kong after the outbreak of SARS, which was a major crisis that called for fundamental review of the authors' built facilities.

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Journal of Facilities Management, vol. 6 no. 4
Type: Research Article
ISSN: 1472-5967

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Article
Publication date: 25 March 2019

Yaser Khajebishak, Laleh Payahoo, Hamed Hamishehkar, Mohammadreza Alivand, Mahdieh Alipour, Mohammad Solhi and Beitullah Alipour

Diabetes is one of the most prevailed chronic diseases in the world. Pro-inflammatory cytokines play a key role in the type 2 diabetes mellitus. Pomegranate seed oil (PSO) has…

230

Abstract

Purpose

Diabetes is one of the most prevailed chronic diseases in the world. Pro-inflammatory cytokines play a key role in the type 2 diabetes mellitus. Pomegranate seed oil (PSO) has potential anti-inflammatory properties. The purpose of this study is to evaluate the antidiabetic effects of the use of PSO on the expression of peroxisome proliferator-activated receptor-gamma (PPAR-γ), pro-inflammatory biomarkers and lipid profile levels in obese type 2 diabetic patients.

Design/methodology/approach

In total, 52 patients were randomly assigned to the PSO (n = 26) and placebo (n = 26) groups. Subjects received daily PSO 3 g placebo (paraffin) in 1 g soft-gel capsules (along with breakfast, lunch and dinner meals) for eight weeks.

Findings

Serum levels of fasting blood sugar (FBS) decreased from 161.46 ± 34.44 to 143.50 ± 24.2 mg/dL (p = 0.008), IL-6 decreased from 5.17 ± 2.25 to 4.52 ± 1.90 (p = 0.049) and tumor necrosis factor alpha (TNF-α) significantly decreased from 9.17 ± 4.13 to 7.74 ± 2.44 pmol/mL in PSO group (p = 0.030). However, changes in the expression of PPAR-γ gene, serum levels of hs-CRP and lipid profile levels were not significant.

Research limitations/implications

Lack of PSO concentration measurements and the short duration of the study were the key limitations. Future randomized clinical trials with a longer period of follow-up are needed to assess the potential anti-diabetic effects of PSO.

Originality/value

Administration of PSO in obese type 2 diabetic patients reduced the levels of FBS, interleukin 6 and TNF-α; nevertheless, changes in the insulin, lipid profiles and hs-CRP were not significant.

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Nutrition & Food Science, vol. 49 no. 5
Type: Research Article
ISSN: 0034-6659

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Article
Publication date: 14 May 2018

Claudia Vásquez Rojas, Eduardo Roldán Reyes, Fernando Aguirre y Hernández and Guillermo Cortés Robles

Strategic planning (SP) enables enterprises to plan management and operations activities efficiently in the medium and large term. During its implementation, many processes and…

779

Abstract

Purpose

Strategic planning (SP) enables enterprises to plan management and operations activities efficiently in the medium and large term. During its implementation, many processes and methods are manually applied and may be time consuming. The purpose of this paper is to introduce an automatic method to define strategic plans by using text mining (TM) algorithms within a generic SP model especially suited for small- and medium-sized enterprises (SMEs).

Design/methodology/approach

Textual feedbacks were collected through a SWOT matrix during the implementation of a SP model in a company dedicated to the local distribution of food. A four-step TM process (performing acquisition, pre-processing, processing, and validation tasks) is applied via a framework developed under the cloud computer paradigm in order to determine the strategic plans.

Findings

The use of categorization and clustering algorithms show that unstructured textual information produced during the SP can be efficiently processed and capitalized. Collected evidence reveals the potential to enhance the strategic plans creation with less effort and time, improving the relevance, and producing new technological resources accessible to SMEs.

Originality/value

An innovative framework especially suited for the SMEs based on the synergy assumption of the coupling between TM and a generic SP model.

Details

Industrial Management & Data Systems, vol. 118 no. 4
Type: Research Article
ISSN: 0263-5577

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Article
Publication date: 17 December 2021

Monireh Panbehkar-Jouybari, Mehdi Mollahosseini, Asieh Panjeshahin and Mahdieh Hosseinzadeh

Garlic supplementation may be inversely contributed to body weight and composition; however, previous results have been inconsistent. This study aims to evaluate the effect of…

72

Abstract

Purpose

Garlic supplementation may be inversely contributed to body weight and composition; however, previous results have been inconsistent. This study aims to evaluate the effect of garlic supplementation on body weight and composition using a systematic review and meta-analysis.

Design/methodology/approach

Online databases of PubMed, ISI Web of Science, Scopus and Google Scholar were searched up to January 2020. The random-effects model was used to calculate the effect sizes of the included studies. The risk of bias of included studies was assessed using the Cochrane collaboration’s tool. Besides, the NutriGrade scoring system was applied to judge the credibility of the evidence.

Findings

In total, 18 studies (with 1,250 participants) were included in the meta-analysis. The pooled analysis revealed that garlic supplementation has a significant increase in body weight [weighted mean difference (WMD) = 0.31 Kg, 95% CI: 0.09, 0.53 Kg, P = 0.005, n = 12 effect sizes]. Waist circumference (WC) does remarkably reduce [WMD = −1.28 cm, 95% CI: −2.08, −0.47 cm, P = 0.002, n = 4 effect size]. However, body mass index, body fat percent and fat-free mass do not dramatically change (P > 0.05). Notably, the pooled analyses on body weight and WC were sensitive to two included studies. NutriGrade’s score was rated low for this meta-analysis.

Originality/value

Although garlic supplementation could slightly increase weight and simultaneously might decrease WC, these associations were not strong enough to corroborate the findings. Also, other anthropometric indices do not significantly change. Further well-designed randomized clinical trial studies are needed to confirm the results.

Details

Nutrition & Food Science , vol. 52 no. 3
Type: Research Article
ISSN: 0034-6659

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Article
Publication date: 11 October 2022

Achini Shanika Weerasinghe, Eziaku Onyeizu Rasheed and James Olabode Bamidele Rotimi

Better identification of comfort preferences and occupant behaviour drivers is expected to improve buildings’ user-centred designs and energy operations. To understand the…

229

Abstract

Purpose

Better identification of comfort preferences and occupant behaviour drivers is expected to improve buildings’ user-centred designs and energy operations. To understand the underline drivers of occupant behaviours in office buildings, this study aims to evaluate the inter-relationships among occupant energy behaviours, indoor environmental quality satisfaction, user control and social-psychological factors influencing occupant behaviours in New Zealand offices.

Design/methodology/approach

Using an occupant perception survey, this study identifies the occupant behaviour patterns based on multi-domain comfort preferences. A case study was conducted in five office spaces of a university in Auckland, New Zealand. Data were collected from 52 occupants and analysed using descriptive and binary logistic regression analysis. Indoor environmental quality, user control, motivational, opportunity and ability factors were the independent variables considered. A model to predict the behaviours using environmental, building and social-psychological aspects was developed.

Findings

The results showed that the primary sources of indoor environmental quality discomfort were related to thermal and air quality, while occupants’ indoor environmental quality satisfaction correlated with their comfort preferences. The outcomes emphasise how the connection between building systems and occupants’ comfort preferences affect the choice of occupant behaviours in offices. Also, the primary occupant behaviours were drinking hot and cold beverages, opening/closing windows and internal doors and adjusting clothing. The binary logistic regression analysis showed that occupants’ perceived user control satisfaction is the main driver for increasing window actions. No other independent variable showed a statistically significant association with other behaviours.

Originality/value

This study adopted a novel approach to assess the combined effects of comfort preferences, occupant energy behaviours and various environmental, building and socio-psychological factors for modelling energy-saving behaviours in office buildings.

Details

Journal of Facilities Management , vol. 22 no. 4
Type: Research Article
ISSN: 1472-5967

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Article
Publication date: 29 February 2024

Aida Malek Mahdavi and Zeinab Javadivala

This systematic review aims to gain the studies regarding the effect of Nigella Sativa (N. sativa) on adipokines including leptin, adiponectin and resistin.

20

Abstract

Purpose

This systematic review aims to gain the studies regarding the effect of Nigella Sativa (N. sativa) on adipokines including leptin, adiponectin and resistin.

Design/methodology/approach

Search was carried out using databases Scopus, Web of Science, PubMed and Google Scholar with no restriction on language or date until February 2023 and alert services were applied to identify any paper after the primary search.

Findings

Eighteen animal and human studies were eligible for the current systematic review. Leptin and resistin levels showed a downward tendency after consuming N. sativa and its ingredients [e.g. oil, thymoquinone (TQ) and thymol] as well as its extracts (e.g. water extract). Furthermore, considering 4 of 8 animal research studies and 2 of 5 human studies that evaluated adiponectin levels, a significant increase was observed after using N. sativa and its ingredients (e.g. oil, TQ and thymol).

Originality/value

The present paper collates evidence from animal and human studies regarding the effect of N. sativa on adipokines including leptin, adiponectin and resistin.

Details

Nutrition & Food Science , vol. 54 no. 3
Type: Research Article
ISSN: 0034-6659

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Article
Publication date: 1 February 2002

GEORGI GEORGEV, JAY JUNG, HOSSEIN B. KAZEMI and MAHNAZ MAHDAVI

This paper shows that for a large class of single and multi‐factor term structure models, including the affine class, the market price of risk is directly related to the…

146

Abstract

This paper shows that for a large class of single and multi‐factor term structure models, including the affine class, the market price of risk is directly related to the parameters of the stochastic processes of the underlying factors of the economy. It is shown that the market price of risk is proportional to the limit of the volatility of zero coupon bond returns. This means that the market price of risk is not entirely arbitrary. Not only it must be consistent with no arbitrage conditions, also it must be consistent with the parameters of stochastic processes of the factors that describe the economy. If the market price of risk is not correctly specified, then it could lead to profit opportunities of the type discussed in Backus et al (1996). Another consequence of our result is that in empirical tests of interest rate processes, the market price of risk should not be specified exogenously since its value is a function of the parameters of the model. We extend our result to forward processes. The market price of risk is shown to be a function of the volatility of the forward rate processes.

Details

Studies in Economics and Finance, vol. 20 no. 2
Type: Research Article
ISSN: 1086-7376

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Article
Publication date: 20 January 2025

Maciej Rys and Roman Topor-Madry

The COVID-19 pandemic significantly reshaped the healthcare landscape, revealing both systemic strengths and weaknesses. This article examines a long-term study of the pandemic’s…

13

Abstract

Purpose

The COVID-19 pandemic significantly reshaped the healthcare landscape, revealing both systemic strengths and weaknesses. This article examines a long-term study of the pandemic’s impacts on healthcare systems and integrated care processes, highlighting both negative results – such as increased burnout and persistent systemic flaws – and positive outcomes, such as improved patient care models, enhanced collaboration and increased technological integration.

Design/methodology/approach

The study employed elements of the ethnographic approach, combining various qualitative methods with a literature review and data analysis.

Findings

The findings reveal a mixed legacy: while the pandemic accelerated innovation and exposed systemic flaws, it also exacerbated mental health issues among healthcare workers.

Research limitations/implications

The main limitation is study’s focus on the Polish healthcare system, which may introduce biases and limit the generalizability of findings to other regions with different backgrounds, infrastructures and pandemic responses.

Practical implications

Addressing these issues will be crucial for developing robust healthcare policies and improving overall healthcare delivery and integrated care processes.

Social implications

The study provides practical implications for policymakers, healthcare providers and the workforce, emphasizing the need for structural resilience, effective resource management and ongoing professional development to sustain and enhance healthcare systems globally.

Originality/value

The study’s originality arises from its methodological approach, combining interviews with healthcare professionals and a narrative review to provide a long-term analysis of both positive and negative outcomes from the COVID-19 pandemic, particularly focusing on the Polish healthcare system while also generalizing insights that could be relevant globally.

Details

Journal of Integrated Care, vol. 33 no. 1
Type: Research Article
ISSN: 1476-9018

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Article
Publication date: 17 September 2024

SeyedAhmad SeyedAlinaghi, Soudabeh Yarmohammadi, Farid Farahani Rad, Muhammad Ali Rasheed, Mohammad Javaherian, Amir Masoud Afsahi, Haleh Siami, AmirBehzad Bagheri, Ali Zand, Omid Dadras and Esmaeil Mehraeen

COVID-19 is an infectious disease caused by the SARS-CoV-2 virus. Considering the restricted and enclosed nature of prisons and closed environments and the prolonged and close…

23

Abstract

Purpose

COVID-19 is an infectious disease caused by the SARS-CoV-2 virus. Considering the restricted and enclosed nature of prisons and closed environments and the prolonged and close contact between individuals, COVID-19 is more likely to have a higher incidence in these settings. This study aims to assess the prevalence of COVID-19 among prisoners.

Design/methodology/approach

Papers published in English from 2019 to July 7, 2023, were identified using relevant keywords such as prevalence, COVID-19 and prisoner in the following databases: PubMed/MEDLINE, Scopus and Google Scholar. For the meta-analysis of the prevalence, Cochrane’s Q statistics were calculated. A random effect model was used due to the heterogeneity in COVID-19 prevalence across included studies in the meta-analysis. All analyses were performed in STATA-13.

Findings

The pooled data presented a COVID-19 prevalence of 20% [95%CI: 0.13, 0.26] and 24% [95%CI: 0.07, 0.41], respectively, in studies that used PCR and antibody tests. Furthermore, two study designs, cross-sectional and cohort, were used. The results of the meta-analysis showed studies with cross-sectional and cohort designs reported 20% [95%CI: 0.11, 0.29] and 25% [95%CI: 0.13, 0.38], respectively.

Originality/value

Through more meticulous planning, it is feasible to reduce the number of individuals in prison cells, thereby preventing the further spread of COVID-19.

Details

International Journal of Prison Health, vol. 20 no. 4
Type: Research Article
ISSN: 2977-0254

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