scholarly journals Early-Age Thermal-Shrinkage Cracking in Deep Foundations

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Łukasz Grabowski ◽  
Monika Mitew-Czajewska
Keyword(s):  
Thermal Shrinkage ◽  
Future Research ◽  
Early Age ◽  
Deep Foundations ◽  
Shrinkage Cracking ◽  
The United Kingdom ◽  
Normative Requirements ◽  
Geotechnical Design ◽  
European Standards ◽  
Materials Used

Abstract With the growing rate of urbanisation, deep foundations are playing an ever-larger role in the development of cities, reaching deeper than before to fulfil the requirements of new constructions. While current European standards include design procedures for structural and geotechnical design, they lack provisions for massive deep foundations with regard to early-age thermal effects. This paper presents aspects of the phenomenon especially important for deep foundations and discusses normative requirements that influence their thermal behaviour. Further, the paper describes the methods and results of the research carried out in the United Kingdom on 1.50-m-thick diaphragm walls of a deep circular shaft. Shaft features are described, as well as the materials used. The measurements were carried out using vibrating wire strain gauges coupled with temperature readings. The results presented refer to one of the test panels concreted in January 2020. The temperature results are analysed together with the influence of work scheduling on the readings. Strain results that indicate contractive behaviour of the test panel are investigated together with the possible causes leading to such readings. Plans and directions for future research are discussed.

Effect of Water/Cement Ratio on the Early Age Tensile Strength of Concrete

1998 ◽  
Vol 1610 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Jon Abel ◽  
Ken Hover
Keyword(s):  
Tensile Strength ◽  
United Kingdom ◽  
Early Age ◽  
Dormant Period ◽  
Shrinkage Cracking ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Plastic Shrinkage ◽  
The United Kingdom ◽  
Time Period

Following Hannant’s research in the United Kingdom, the authors measured the tensile strength of concrete between the ages of 2 and 8 hr after batching. Water/cement ratios varied from 0.3 to 0.7, and water content varied from 198.6 to 220 kg/m3 (327 to 377 lb/yd3). It appears that there is a dormant period from 2 to about 4 hr when tensile strength was immeasurably low. Pragmatically this corresponds to the time period when plastic shrinkage cracking is frequently initiated. Tensile capacity developed very rapidly after the dormant period, and in all cases development of tensile strength was more rapid the lower the water/cement ratio.

scholarly journals Reliability, Validity, and Gender Invariance of the Exercise Benefits/Barriers Scale: An Emerging Evidence for a More Concise Research Tool

2021 ◽  
Vol 18 (7) ◽  
pp. 3516
Author(s):  
Stefan Koehn ◽  
Farzad Amirabdollahian
Keyword(s):  
Factor Structure ◽  
Adult Population ◽  
Research Tool ◽  
Future Research ◽  
Gender Invariance ◽  
The United Kingdom ◽  
And Gender ◽  
The Uk ◽  
Fit Index ◽  
Northwest Region

The Exercise Benefits/Barriers Scale (EBBS) research instrument has been extensively used to investigate the perceived benefits and barriers of exercise in a range of settings. In order to examine theoretical contentions and translate the findings, it is imperative to implement measurement tools that operationalize the constructs in an accurate and reliable way. The original validation of the EBBS proposed a nine-factor structure for the research tool, examined the EBBS factor structure, and suggested that various factors are important for the testing of the perception of exercise benefits and barriers, whereas a few items and factors may not be vital. The current study conducted a confirmatory factor analysis (CFA) using hierarchical testing in 565 participants from the northwest region of the United Kingdom, the results of which provided evidence for a four-factor structure of the benefits measure, with the Comparative Fit Index (CFI) = 0.943, Tucker–Lewis Index (TLI) = 0.933, and root means square error of approximation (RMSEA) = 0.051, namely life enhancement, physical performance, psychological outlook, and social interaction, as well as a two-factor structure of the barrier measures, with the CFI = 0.953, TLI = 0.931, and RMSEA = 0.063, including exercise milieu and time expenditure. Our findings showed that for a six-factor correlated model, the CFI = 0.930, TLI = 0.919, and RMSEA = 0.046. The multi-group CFA provided support for gender invariance. The results indicated that after three decades of the original validation of the EBBS, many of the core factors and items are still relevant for the assessment of higher-order factors; however, the 26-item concise tool proposed in the current study displays a better parsimony in comparison with the original 43-item questionnaire. Overall, the current study provides support for a reliable, cross-culturally valid EBBS within the UK adult population, however, it proposes a shorter and more concise version compared with the original tool, and gives direction for future research to focus on the content validity for assessing the perception of the barriers to physical activity.

Consumers' preferences for intrinsic and extrinsic product attributes of plant-based eggs: an exploratory study in the United Kingdom and Italy

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Agnese Rondoni ◽  
Elena Millan ◽  
Daniele Asioli
Keyword(s):  
United Kingdom ◽  
Design Methodology ◽  
Future Research ◽  
Product Attributes ◽  
Product Failure ◽  
Content Type ◽  
The United Kingdom ◽  
Analysis Of Results ◽  
Method Of Production ◽  
Practical Implications

PurposePlant-based eggs have recently been developed to provide consumers with a healthier, animal-friendlier and more sustainable alternative to conventional eggs. The purpose of this paper is to investigate intrinsic and extrinsic attribute preferences for three prototypes of plant-based egg, namely the liquid, powder and egg-shaped.Design/methodology/approachNine focus groups in the United Kingdom and nine in Italy were conducted, with a total of 180 participants. A thematic analysis of results was conducted.FindingsIn terms of intrinsic product attributes, consumers' preferences for colour, shape, taste, ingredients, nutrients, method of production and shelf-life for plant-based eggs were revealed. Regarding the extrinsic attributes, preferences for price, packaging, country of origin and product naming emerged. Similarities and differences between consumers from the two countries are also discussed. Differences in preferences also emerged between vegan and non-vegan consumers.Research limitations/implicationsThis study adds to the existing knowledge on consumers' preferences for new plant-based food alternatives and identifies future quantitative approaches based on qualitative findings.Practical implicationsResults from this study can assist plant-based egg manufacturers in improving their products in line with consumers' expectations, which may help reducing risk of product failure.Originality/valueThis study is the first to investigate consumers' preferences, expectations and needs for new food products like plant-based eggs and provides information that can be practically applied by manufacturers, as well as suggestions for future research.

scholarly journals Environmental Performance Enters Construction Materials

MRS Bulletin ◽  
2008 ◽  
Vol 33 (4) ◽  
pp. 454-456 ◽  
Author(s):  
Peter Bonfield
Keyword(s):  
United Kingdom ◽  
Environmental Sustainability ◽  
Construction Materials ◽  
Energy Performance ◽  
The European Union ◽  
The United Kingdom ◽  
Legal Term ◽  
Chain Of Custody ◽  
Materials Used ◽  
Impact Cost

The environmental sustainability of materials used in construction applications is driving a requirement for the quanti-fcation of performance attributes of such materials. For example, the European Union (EU) Energy Performance in Buildings Directive will give commercial buildings an energy rating when rented or sold. The Code for Sustainable Homes launched by the U.K. Government's Department for Communities and Local Government (CLG) in January 2007 sets out the requirement for all new homes to be carbonneutral by 2016. In addition, homes in the United Kingdom will need to signifcantly reduce water consumption from today's average 160 liters (1) per person per day to less than 801 per person per day. Similarly stringent targets are required for waste, materials, and other factors. Such environmental and energy standards are complementing characteristics such as strength, stiffness, durability, impact, cost, and expected life with factors such as “environmental profle,” “ecopoints” (a single unit measurement of environmental impact arising from a product throughout its lifecycle that is used in the United Kingdom), “carbon footprint” (amount of CO2 produced for the lifecycle of the item), “recycled content,” and “chain of custody” (a legal term that refers to the ability to guarantee the identity and integrity of a specimen from collection through to reporting of test results).

scholarly journals Acculturation Challenges Faced by Malaysian Muslim Students Studying Abroad

2021 ◽  
Vol 29 (S1) ◽  
Author(s):  
Siti Nor Aisyah Akhwan ◽  
Dharatun Nissa Puad Mohd Kari ◽  
Salleh Amat ◽  
Mohd Izwan Mahmud ◽  
Abu Yazid Abu Bakar ◽  
...  
Keyword(s):  
The United States ◽  
Future Research ◽  
Ministry Of Education ◽  
Muslim Students ◽  
Studying Abroad ◽  
The United Kingdom ◽  
Multicultural Counselling ◽  
America South ◽  
The University ◽  
Malaysian Students

Every year, thousands of Malaysian students are sent to study abroad by the Ministry of Education Malaysia (MOE) which causes several underestimated stress, especially those faced by the Muslims. This qualitative study aimed to explore the challenges of acculturation among Malaysian Muslim students studying abroad. The researchers adopted a phenomenological design approach to develop in-depth understanding of the topic. The six respondents in the study were former Malaysian students studying in Australia, the United States of America, South Korea, India, Jordan, and the United Kingdom. The respondents were interviewed, and the interview protocol guided the interview until the data reached saturation. The data obtained were analyzed in stages, starting with descriptive coding, topic coding, analytical coding, and themes identification. This process was done using Atlas. ti 8 software. The main findings highlight two research themes: the challenges to expose Islamic identity and practicing the Islamic lifestyle. Findings also suggest that Malaysian Muslim students should consider improving Islamic knowledge as it reflects the impressions of other religions on Muslims as a whole. This study’s findings are important for the student sponsorship and student welfare section of the university in providing an appropriate counselling program for international students dealing with acculturation issues. We also suggest that future research explore acculturation challenges to identify the holistic need of the multicultural counselling service.

scholarly journals Comparative Study on Copyright Exception for Teaching Purposes: Australia, Malaysia and the United Kingdom

2020 ◽  
Author(s):  
Ratnaria Wahid ◽  
Ida Madieha Abdul Ghani Azmi
Keyword(s):  
United Kingdom ◽  
Developed Countries ◽  
Copyright Law ◽  
Public Access ◽  
International Treaties ◽  
Human Right ◽  
The Public ◽  
The United Kingdom ◽  
Copyright Exception ◽  
Materials Used

While education is considered a basic human right, the copyright system however seems to hamper public access to information and knowledge. This is especially so when information that largely comes from developed countries are used as commodities that have to be bought by developing countries. This paper compares the international and national laws in Malaysia, United Kingdom and Australia on the copyright exceptions to materials used for teaching purposes. It analyzes the different ways countries manage and balance between copyright owners and copyright users’ interest and shows that in many circumstances, copyright owners are over-protected by national copyright systems although this is not required by international copyright law. This paper also shows that international treaties governing copyright law do allow some flexibility for member countries to implement copyright systems based on their own needs and circumstances but such opportunity is not fully utilized by member countries for the benefit of the public.  

Rural women entrepreneurship: a systematic literature review and beyond

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Monika Aggarwal ◽  
Ramanjit Kaur Johal
Keyword(s):  
Literature Review ◽  
Bibliometric Analysis ◽  
Systematic Literature Review ◽  
Rural Women ◽  
Future Research ◽  
Female Entrepreneurs ◽  
Role Of Government ◽  
Women Entrepreneurship ◽  
Content Type ◽  
The United Kingdom

PurposeRural women entrepreneurship has been a domain attracting academicians and governments. This paper aims to to annotate existing literature in order to find a nexus between rural women and entrepreneurship using a systematic literature review and bibliometric analysis. Further, it has a certain scope and direction of existing research by critically analysing the work published in the domain of rural women entrepreneurship.Design/methodology/approachOut of 213 documents, 192 were published during last 20 years till October 2020 in Scopus journals that were downloaded using the keywords “Women Entrepreneurship” OR “Female Entrepreneurs” OR “Women Entrepreneurs” OR “Female Entrepreneurship” AND rural were accepted for further processing. VOS-Viewer software has been used to present bibliometric analysis. A thematic analysis of top 10 papers and 26 open access papers has also been done.FindingsIt was found that research interest in the said domain gained momentum in the last decade only. India is the top country that is publishing maximum papers; the United Kingdom has the maximum citations. The existing studies have focussed on factors influencing entrepreneurship, impact of gender and role of government schemes in fostering entrepreneurship. It is recommended that future studies may explore few inadequately explored grey areas including impact of entrepreneurial education, microcredit and information technology on rural women entrepreneurship.Originality/valueThis literature review article contributes to the existing literature by identifying the scope and direction of the existing literature. Further, it helps in identifying the least explored areas that can be taken up for the conduct of future research.

scholarly journals Bisexual Lives and Aging in Context: A Cross-National Comparison of the United Kingdom and the United States

2019 ◽  
Vol 89 (1) ◽  
pp. 22-38 ◽  
Author(s):  
Sarah Jen ◽  
Rebecca L. Jones
Keyword(s):  
United States ◽  
United Kingdom ◽  
Life Course ◽  
Later Life ◽  
The United States ◽  
Life Course Perspective ◽  
Future Research ◽  
Racial Relations ◽  
Aids Epidemic ◽  
The United Kingdom

Research on bisexual histories and identities in later life is limited and reflects only single-nation studies. This article compares findings from two independently conducted studies of bisexual aging, in the United Kingdom and the United States, using a discourse analytic and life course perspective. The goals were to compare how participants narrated and made sense of their bisexual experiences in later life and to examine ways in which historical and cultural contexts shaped their accounts. Findings indicate that similar histories around lesbian separatism and the HIV/AIDS epidemic enabled shared discursive resources, while differing ethnic and racial relations enabled distinctive discursive possibilities. In both studies intersectional experiences, particularly including being a person of color and having a transgender history, profoundly affected individual narratives. Future research will benefit from creative conceptualizations of bisexuality, applying the life course perspective in research and practice, and supporting the diverse and resilient ways bisexual older adults use language.

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