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Institution

University of Kuala Lumpur

EducationKuala Lumpur, Malaysia
About: University of Kuala Lumpur is a education organization based out in Kuala Lumpur, Malaysia. It is known for research contribution in the topics: Population & Ultimate tensile strength. The organization has 4479 authors who have published 5178 publications receiving 45575 citations. The organization is also known as: UniKL.


Papers
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Journal ArticleDOI
TL;DR: Shape memory alloys (SMAs) are a class of shape memory materials (SMMs) which have the ability to "memorise" or retain their previous form when subjected to certain stimulus such as thermomechanical or magnetic variations.

2,818 citations

Journal ArticleDOI
TL;DR: In this paper, the chemistry, types, and synthesis of polyurethanes (PUs) are discussed, with a specific emphasis on their recyclability and recoverability, and information is provided on the environmental friendliness of the PU.
Abstract: Polyurethanes (PUs) are a class of versatile materials with great potential for use in different applications, especially based on their structure–property relationships. Their specific mechanical, physical, biological, and chemical properties are attracting significant research attention to tailoring PUs for use in different applications. Enhancement of the properties and performance of PU-based materials may be achieved through changes to the production process or the raw materials used in their fabrication or via the use of advanced characterization techniques. Clearly, modification of the raw materials and production process through proper methods can produce PUs that are suitable for varied specific applications. The present study aims to shed light on the chemistry, types, and synthesis of different kinds of PUs. Some of the important research studies relating to PUs, including their synthesis method, characterization techniques, and research findings, are comprehensively discussed. Herein, recent advances in new types of PUs and their synthesis for various applications are also presented. Furthermore, information is provided on the environmental friendliness of the PUs, with a specific emphasis on their recyclability and recoverability.

861 citations

Journal ArticleDOI
TL;DR: The authors compared variation in the replicability of 13 classic and contemporary effects across 36 independent samples totaling 6,344 participants and found that the results of these experiments are more dependent on the effect itself than on the sample and setting used to investigate the effect.
Abstract: Although replication is a central tenet of science, direct replications are rare in psychology. This research tested variation in the replicability of 13 classic and contemporary effects across 36 independent samples totaling 6,344 participants. In the aggregate, 10 effects replicated consistently. One effect – imagined contact reducing prejudice – showed weak support for replicability. And two effects – flag priming influencing conservatism and currency priming influencing system justification – did not replicate. We compared whether the conditions such as lab versus online or US versus international sample predicted effect magnitudes. By and large they did not. The results of this small sample of effects suggest that replicability is more dependent on the effect itself than on the sample and setting used to investigate the effect.

767 citations

Journal ArticleDOI
TL;DR: Although the risk-factor burden was lowest in low-income countries, the rates of major cardiovascular disease and death were substantially higher inLow- Income countries than in high- income countries, which may have been mitigated by better control of risk factors.
Abstract: The mean INTERHEART Risk Score was highest in high-income countries, intermediate in middle-income countries, and lowest in low-income countries (P<0.001). However, the rates of major cardiovascular events (death from cardiovascular causes, myocardial infarction, stroke, or heart failure) were lower in high-income countries than in middle- and low-income countries (3.99 events per 1000 personyears vs. 5.38 and 6.43 events per 1000 person-years, respectively; P<0.001). Case fatality rates were also lowest in high-income countries (6.5%, 15.9%, and 17.3% in high-, middle-, and low-income countries, respectively; P = 0.01). Urban communities had a higher risk-factor burden than rural communities but lower rates of cardiovascular events (4.83 vs. 6.25 events per 1000 person-years, P<0.001) and case fatality rates (13.52% vs. 17.25%, P<0.001). The use of preventive medications and revascularization procedures was significantly more common in high-income countries than in middle- or low-income countries (P<0.001). CONCLUSIONS Although the risk-factor burden was lowest in low-income countries, the rates of major cardiovascular disease and death were substantially higher in low-income countries than in high-income countries. The high burden of risk factors in highincome countries may have been mitigated by better control of risk factors and more frequent use of proven pharmacologic therapies and revascularization. (Funded by the Population Health Research Institute and others.)

664 citations

Journal ArticleDOI
TL;DR: No clear pattern of how strongly PAHs were bound to differentBiochars was found based on the biochars' physicochemical properties, and total concentrations were below existing environmental quality standards for concentrations of PAhs in soils.
Abstract: Biochar soil amendment is advocated to mitigate climate change and improve soil fertility. A concern though, is that during biochar preparation PAHs and dioxins are likely formed. These contaminants can possibly be present in the biochar matrix and even bioavailable to exposed organisms. Here we quantify total and bioavailable PAHs and dioxins in a suite of over 50 biochars produced via slow pyrolysis between 250 and 900 °C, using various methods and biomass from tropical, boreal, and temperate areas. These slow pyrolysis biochars, which can be produced locally on farms with minimum resources, are also compared to biochar produced using the industrial methods of fast pyrolysis and gasification. Total concentrations were measured with a Soxhlet extraction and bioavailable concentrations were measured with polyoxymethylene passive samplers. Total PAH concentrations ranged from 0.07 μg g–1 to 3.27 μg g–1 for the slow pyrolysis biochars and were dependent on biomass source, pyrolysis temperature, and time. Wi...

500 citations


Authors

Showing all 4550 results

NameH-indexPapersCitations
Haji Hassan Masjuki9750229653
Rahman Saidur9757634409
W. A. T. Wan Abdullah8391235687
Nasrudin Abd Rahim7953619822
Saad Mekhilef7861424717
Teuku Meurah Indra Mahlia7033917444
Md. Abul Kalam7025614828
Khean-Lee Goh6039715685
Keng-Boon Ooi591559398
Jianguo Zhu5792114581
Kok Lay Teo5780014947
Viren Swami5735612123
Sven Pettersson5416417896
Ishak Hashim534279312
Haibin Su522869513
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202323
202288
2021701
2020705
2019703
2018565