Assessment of indoor air quality and the risk of damage to cultural heritage objects using MEMORI® dosimetry     

Terje Grøntoft  David Thickett  Paul Lankester  Stephen Hackney  Joyce H. Townsend  Kristin Ramsholt 《文物保护研究》2016,61(1):70-82

Air pollution is one of the environmental influences that degrade cultural heritage objects situated indoors. Other essential influences, such as temperature, relative humidity, and light are often well monitored. The presence of air pollutants is less often measured or included in risk assessment. The MEMORI^® technology presented in this paper was developed as a tool for easy measurement and assessment of the general risk of degradation of heritage objects situated indoors due to indoor exposure to air pollutants. MEMORI dosimetry was performed in locations belonging to English Heritage and Tate (both located in London) and the National Archives of Norway in Oslo, to assess air quality. The related damage risk for collection objects and the protection offered by display and storage designs was assessed. A high level of acidic effect was observed inside a number of showcases, and a high level of oxidizing effect was observed in some room locations. Relatively simple mitigation measures, such as constructing tightly sealed showcases using low emitting materials, installing active carbon absorbing media inside a ‘microclimate’ frame, and using cardboard storage boxes for paper, significantly improved air quality. Overall, implementation of such measures is likely to improve the preservation of objects and reduce conservation costs.  相似文献   

Putting the U in carbon capture and storage: rhetorical boundary negotiation within the CCS/CCUS scientific community     

Danielle Endres  Brian Cozen  Megan O’Byrne  Andrea M. Feldpausch-Parker  Tarla Rai Peterson 《Journal of Applied Communication Research》2016,44(4):362-380

This paper examines responses to a framing shift from carbon capture and storage (CCS) to carbon capture, utilization, and storage (CCUS) within science and engineering professionals’ communication. We argue that the framing shift is a breach in the rhetorical boundaries of the CCS professional community that calls forth negotiation through responses that proactively support, resist, or acquiesce. This study offers a heuristic for examining scientific framing in expert-to-expert internal scientific rhetoric. It also contributes to contemporary research on the intersection of rhetoric of science and science, technology, and society; the social dimensions of CCS; energy communication; and applied communicative practices in scientific communities.  相似文献   

Kinematic and kinetic analyses of the toes in dance movements     

Danielle N. Jarvis  Kornelia Kulig 《Journal of sports sciences》2016,34(17):1612-1618

Due to the significant amount of time dancers spend on the forefoot, loads on the metatarsophalangeal joints are likely high, yet vary between dance movements. The purpose of this study was to compare joint motion and net joint moments at the metatarsophalangeal joints during three different dance movements ranging in demands at the foot and ankle joints. Ten healthy, female dancers (27.6 ± 3.2 years; 56.3 ± 6.9 kg; 1.6 ± 0.1 m) with an average 21.7 ± 4.9 years of dance training performed relevés (rising up onto the toes), sautés (vertical bipedal jumps), and saut de chat leaps (split jumps involving both vertical and horizontal components). Metatarsophalangeal joint kinematics and kinetics in the sagittal plane were calculated. Total excursion and peak net joint moments during rising or push-off were compared between the three dance movements. Greater extension of the metatarsophalangeal joints was seen during relevés compared to sautés or saut de chat leaps, and the largest metatarsophalangeal net joint moments were seen during saut de chat leaps. The metatarsophalangeal joints frequently and repetitively manage external loads and substantial metatarsophalangeal extension during these three dance movements, which may contribute to the high rate of foot and ankle injuries in dancers.  相似文献   

Editorial     

Andrew Townsend 《Educational Action Research》2016,24(4):443-445

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Age of acquisition and imageability: a cross‐task comparison     

Danielle M. Ploetz  Mark Yates 《Journal of Research in Reading》2016,39(1):37-49

Previous research has reported an imageability effect on visual word recognition. Words that are high in imageability are recognised more rapidly than are those lower in imageability. However, later researchers argued that imageability was confounded with age of acquisition. In the current research, these two factors were manipulated in a factorial design to assess their effect in a lexical decision task and a progressive demasking task. Across both tasks, there was a clear and robust effect of age of acquisition. In contrast, the imageability effect was only evident in the progressive demasking task. Both effects are explained within the connectionist framework in terms of network plasticity and semantic feedback activation.  相似文献   

The identification of students’ alternative conceptions in biology by the use of creative writing     

Danielle Duggan  Philip Matthews 《Irish Educational Studies》2013,32(1):79-96

Children, Power and Schooling. How Childhood is Structured in the Primary School By Dympna Devine Trentham Books Ltd. 2003, ISBN: 1 85856 271 6 (pbk)  相似文献   

Teacher education for inclusion: changing paradigms and innovative approaches     

Danielle M. Cowley 《International Journal of Disability, Development & Education》2011,58(3):332-334

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Book reviews     

Franklin Parker  William W. Brickman  Tadeusz J. Wiloch  Enno Schmitz  Otto Roloff  John Raven  Eric Hoyle  Gerd Doerry  Walter Hahn  Hans Weiler  Richard Cummings  A. G. Hearnden  Gerd Iben  E. K. Townsend Coles  A. Harry Passow  Françoise Bacher  Alexandre Vexliard  Thành Lê Khôi  Doris Elbers  Brigitte Beer 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1971,17(4):469-504

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A generalized direct search acceptable-point technique for use with descent-type multivariate algorithms     

G.E. Johnson  M.A. Townsend 《Journal of The Franklin Institute》1980,309(3):163-177

Many non-linear programming algorithms employ a univariate subprocedure to determine the step length at each multivariate iteration. In recent years much work has been directed toward the development of algorithms which will exhibit favorable convergence properties on well-behaved functions without requiring that the univariate algorithm perform a sequence of one-dimensional minimizations.In this paper a direct search method (the golden section search) is modified to search for acceptable rather than minimizing step lengths and then used as the univariate subprocedure for a generalized conjugate gradient algorithm. The resulting multivariate minimization method is tested on standard unconstrained test functions and a constrained industrial problem. The new method is found to be relatively insensitive to tuning parameters (insofar as success or failure is concerned).A comparison of the golden section acceptable-point search (GSAP) with other popular acceptable-point methods indicates that GSAP is a superior strategy for use with the conjugate directions-type algorithms and is also suitable for use with the quasi-Newton methods. The comparison are based on equivalent function evaluations required to minimize multivariate test functions.  相似文献   

Engaging Across Intractable Differences: Why,When, and How Should Educators Work With?          下载免费PDF全文

Danielle Lake 《Educational theory》2017,67(6):693-711

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