885 research outputs found
Analysis and trade-off studies of large lightweight mirror structures
A candidate mirror, hexagonally lightweighted, is analyzed under various loadings using as complete a procedure as possible. Successive simplifications are introduced and compared to an original analysis. A model which is a reasonable compromise between accuracy and cost is found and is used for making trade-off studies of the various structural parameters of the lightweighted mirror
Content & Watkins's account of natural axiomatizations
This paper briefly recounts the importance of the notion of natural axiomatizations for explicating hypothetico-deductivism, empirical significance, theoretical reduction, and organic fertility. Problems for the account of natural axiomatizations developed by John Watkins in Science and Scepticism and the revised account developed by Elie Zahar are demonstrated. It is then shown that Watkins's account can be salvaged from various counter-examples in a principled way by adding the demand that every axiom of a natural axiomatization should be part of the content of the theory being axiomatized. The crucial point here is that content cannot simply be identified with the set of logical consequences of a theory, but must be restricted to a proper subset of the consequence set. It is concluded that the revised Watkins account has certain advantages over the account of natural axiomatizations offered in Gemes (1993)
Quintuplets: record of a premature delivery
This article does not have an abstract
Factors affecting the adoption of emerging technologies in the malaysian construction industry
Technologies are tools or machines that solve real-world problems and, therefore, very important to all industries, including the construction industry. In some parts of the world, technology is a necessity as it helps to improve and increase the efficiency of day-to-day operations, especially in terms of time and budget management. However, there are still many companies that are refusing to apply technology in their construction projects. This study aims to investigate the factors affecting the adoption of emerging technologies in the Malaysian construction industry. To achieve these objectives, this study analyses the extensive interview data with selected construction project managers. Nineteen factors were identified, and these factors can be categorized into two groups (internal; workable by project managers and external; uncontrollable by project managers). This work contributes to the body of knowledge in analysing the factors that affect the adoption of technology in the construction industry from industry practitionersâ angle, which could help researchers and industry practitioners draw up plans to reduce the rejection of technologies among the project managers. The findings of this study could help improve the success of adopting the technologies in any part of the construction industry
Comparative gene expression study between two turmeric (Curcuma longa L.) cultivars
Two turmeric (Curcuma longa L.) cultivars differing in curcumin content viz GNT-2 (4.6 % curcumin) and NDH-98 (1.6% curcumin) were selected for comparative gene expression study in association with total curcumin contents. Sampling was done at six months after planting in open field condition. Differential gene expression patterns were observed between two cultivars by reverse transcription quantitative real time polymerase chain reaction (RT-qPCR), and total curcumin contents were quantified using high performance liquid chromatography (HPLC). Low curcumin yielding cultivar, NDH-98, exhibited higher expression of DCS and CURS3 whereas lower expression of CURS1 and CURS2. However, opposite pattern was observed in a high curcumin yielding cultivar, GNT-2, where DCS and CURS3 expressions were lower but CURS1 and CURS2 expressions were higher. CURS3 showed similar expression between both cultivars. CURS1 and CURS2 expression patterns showed more closer association than DCS and CURS3 gene expression patterns with each other. Differential gene expression patterns could be predictively associated with differential curcuminoids concentrations in turmeric cultivars
Language, Truth, and Logic and the Anglophone reception of the Vienna Circle
A. J. Ayerâs Language, Truth, and Logic had been responsible for introducing the Vienna Circleâs ideas, developed within a Germanophone framework, to an Anglophone readership. Inevitably, this migration from one context to another resulted in the alteration of some of the concepts being transmitted. Such alterations have served to facilitate a number of false impressions of Logical Empiricism from which recent scholarship still tries to recover. In this paper, I will attempt to point to the ways in which LTL has helped to foster the various mistaken stereotypes about Logical Empiricism which were combined into the received view. I will begin by examining Ayerâs all too brief presentation of an Anglocentric lineage for his ideas. This lineage, as we shall see, simply omits the major 19th century Germanophone influences on the rise of analytic philosophy. The Germanophone ideas he presents are selectively introduced into an Anglophone context, and directed towards various concerns that arose within that context. I will focus on the differences between Carnapâs version of the overcoming of metaphysics, and Ayerâs reconfiguration into what he calls the elimination of metaphysics. Having discussed the above, I will very briefly outline the consequences that Ayerâs radicalisation of the Vienna Circleâs doctrines had on the subsequent Anglophone reception of Logical Empiricism
Scaling Peak Oxygen Consumption for Body Size and Composition in People With a Fontan Circulation
This is the final version. Available on open access from Wiley via the DOI in this recordBACKGROUND: Peak oxygen consumption (peak Ì VO2) is traditionally divided (âratio- scaledâ) by body mass (BM) for clinical interpretation. Yet, it is unknown whether ratio- scaling to BM can produce a valid size- independent expression of peak VO2 in people with a Fontan circulation. Furthermore, people with a Fontan circulation have deficits in lean mass, and it is unexplored whether using different measures of body composition may improve scaling validity. The objective was to assess the validity of different scaling denominators (BM, stature, body surface area, fat- free mass, lean mass, and appendicular lean mass using ratio and allometric scaling). Ì METHODS AND RESULTS: Eighty- nine participants (age: 23.3±6.7 years; 53% female) with a Fontan circulation had their cardiorespiratory fitness and body composition measured by cardiopulmonary exercise testing and dual- energy x- ray absorptiometry. Ratio and allometric (log- linear regression) scaling was performed and Pearson correlations assessed scaling validity. Scaling denominators BM (r=â0.25, P=0.02), stature (r=0.46, P<0.001), and body surface area (0.23, P=0.03) were significantly correlated with their respective ratio- scaled expressions of peak Ì VO2, but fat- free mass, lean mass, or appendicular Downloaded from http://ahajournals.org by on December 14, 2022 lean mass were not (râ€0.11; R2=1%). Allometrically expressed peak denominator (r=â€0.23; R2=â€4%). Ì Ì VO2 resulted in no significant correlation with any scaling CONCLUSIONS: The traditional and accepted method of ratio- scaling to BM is invalid because it fails to create a size- independent expression of peak VO2 in people with a Fontan circulation. However, ratio- scaling to measures of body composition (fat- free mass, lean mass, and appendicular lean mass) and allometric techniques can produce size- independent expressions of peak Ì VO2 in people with a Fontan circulation.Canon Medical Systems UK Ltd.University of ExeterMedical Research Future Fun
Young children's research: children aged 4-8 years finding solutions at home and at school
Children's research capacities have become increasingly recognised by adults, yet children remain excluded from the academy, with reports of their research participation generally located in adults' agenda. Such practice restricts children's freedom to make choices in matters affecting them, underestimates childrenâs capabilities and denies children particular rights. The present paper reports on one aspect of a small-scale critical ethnographic study adopting a constructivist grounded approach to conceptualise ways in which children's naturalistic behaviours may be perceived as research. The study builds on multi-disciplinary theoretical perspectives, embracing 'new' sociology, psychology, economics, philosophy and early childhood education and care (ECEC). Research questions include: 'What is the nature of ECEC research?' and 'Do childrenâs enquiries count as research?' Initially, data were collected from the academy: professional researchers (n=14) confirmed 'finding solutions' as a research behaviour and indicated children aged 4-8 years, their practitioners and primary carers as 'theoretical sampling'. Consequently, multi-modal case studies were constructed with children (n=138) and their practitioners (n=17) in three âgoodâ schools, with selected children and their primary carers also participating at home. This paper reports on data emerging from children aged 4-8 years at school (n=17) and at home (n=5). Outcomes indicate that participating children found diverse solutions to diverse problems, some of which they set themselves. Some solutions engaged children in high order thinking, whilst others did not; selecting resources and trialing activities engaged children in 'finding solutions'. Conversely, when children's time, provocations and activities were directed by adults, the quality of their solutions was limited, they focused on pleasing adults and their motivation to propose solutions decreased. In this study, professional researchers recognised 'finding solutions' as research behaviour and children aged 4-8 years naturalistically presented with capacities for finding solutions; however, the children's encounters with adults affected the solutions they found
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