13 research outputs found
Short history of South Australia / by Noah Shreeve.
No full text"Entered at Stationers' Hall"--Colophon.; Electronic reproduction. Canberra, A.C.T. : National Library of Australia, 2009.; Library's copy inscribed under author's name on front cover: "Waymouth St., Adelaide"
Czech National Identity: A Cultural Analysis of the Evolution of What it Means to be Czech Before and After the Velvet Revolution
No full textThe Czech-Republic has been subject to a revolving door of political ideologies and government regimes throughout history. The Czech people did not have a country to call their own until 1918 with the creation of Czechoslovakia granted them sovereignty from the Austro-Hungarian Empire after World War I. The author analyzes important works of culture, including literature, architecture, and music, in each time period to see which values are being represented more often and more strongly. The collective identity of the Czech people is investigated to determine what it means to be Czech, concentrating on the recent transition to and from Communism
EDUCATORS’ UNDERSTANDING OF SCIENTIFIC SENSEMAKING AND LITERACY: A CULTURAL-HISTORICAL ACTIVITY THEORY ANALYSIS
No full textThe purpose of this qualitative study was to describe a community of middle school science educators’ understandings of scientific sensemaking and literacy during their participation in professional development. Six teachers from Marksboro Middle School initiated and participated in a semester-long book study of Ambitious Science Teaching (Windschitl, Thompson, & Braaten, 2018). Three of these science teachers also participated in an interdisciplinary workshop series on sensemaking and literacy across the curriculum with three additional school colleagues from other disciplines conducted by a regional science professional developer and the author, a literacy education scholar. Two professional developers also participated in this study.
This study explored two research questions: (1) How were middle school teachers’ and professional development providers’ understandings of scientific sensemaking and literacy demonstrated during their participation in professional development? (2) How were these understandings mediated by the Ambitious Science Teaching book discussion activity system within which this work was situated?
Central to this investigation was use of Cultural Historical Activity Theory (CHAT) as both a theoretical and analytical framework. CHAT provided a way to capture the complexity of teachers’ activity and how their understandings were mediated by systemic elements. These elements included social and historical factors of both individuals and educational institutions. This framework was also supported by the use of qualitative research methods and Actor-Network Theory (ANT).
Educators described their understanding of scientific sensemaking and literacy in similar ways. Descriptions of each included cognitive and social processes of grappling with information, however, what counted as information differed. Sensemaking was generally discussed as a process focused on a scientific phenomenon. Literacy was generally regarded as reading print-based and multi-modal texts. Throughout their work together, teachers also considered students’ equitable engagement in classroom discourse as a feature of sensemaking-oriented instruction.
Through their involvement in the activity system, educators demonstrated further understanding of sensemaking as a discrete activity as well as an extended process in which students engage in while learning through science instructional units called storylines. Through their collaborative activity, educators also demonstrated understanding of literacy as incorporating a variety of communicative modes, with student talk serving as the primary vehicle for students’ sensemaking. Literacy was also understood as a set of tools students’ draw upon when engaging in sensemaking. Teachers actions during book discussions demonstrated that considering how to support students’ literacy was a taken for granted component of planning for students’ sensemaking.
Teachers’ demonstrations of these understandings were mediated through the community’s use of the pedagogical suggestions provided by Ambitious Science Teaching (Windschitl, Thompson, and Braaten, 2018), consideration of performance expectations included in their state standards, and incorporation of resources beyond the focal text. It was bounded and challenged by institutional factors such as time constraints for instruction and the influence of statewide assessments.
The findings of this study build on previous research in science education and literacy education and support Hinchman and O’Brien’s (2019) call for literacy scholars to consider a hybridized view of disciplinary literacy. By considering scientific sensemaking and literacy as a dialectic, this study positions literacy as an inherent component of science teaching, rather than as a separate goal for educators to address. It has implications for literacy practitioners working in science spaces and for both science education and literacy education scholars researching sensemaking and disciplinary literacies
Reduced primary care respiratory infection visits following pregnancy and infancy vitamin D supplementation: a randomised controlled trial
No full textSynthesis of conducting graphite-like nanometer wires via soluble precursors
No full textGraphite - like conducting materials were
encapsulated in the channels of new mesoporous MCM-
41 materials with typical channel diameters of 30-40 Ä.
Acrylonitrile was introduced into the hosts via vapor
transport, then polymerized with external radical
initiators, K2S2O8 and HNaSOß. The polymers in the host
cavities were further pyrolyzed at different temperatures
under vacuum or nitrogen atmosphere. The properties of
the polymer systems were studied while encapsulated or
after dissolution of the host. The crystallinity of the hosts
is intact after insertion of the polymer (even after
pyrolysis at 800°C). The formation of conducting
graphite - like materials inside the hosts was
demonstrated with Raman and UV spectra. The nitrogen
to carbon ratio of the pyrolyzed polymers depends on the
pyrolysis temperature and the polymer environment.
Most interestingly, the normalized AC absorption of
pyrolyzed polyacrylonitrile in MCM-41 (at 800°C) is
comparable to graphite
Synthesis and complexation of Cyclopentadienes
No full textThe first part of chapter 1 gives a short general introduction to the importance of cyclopentadienyl complexes. This leads on to a presentation of the importance of chirality in cyclopentadienyl complexes with reference to their catalytic applications. The main bulk of the chapter then presents the subject of chirality in cyclopentadienyl complexes in terms of their molecular structure, with many important examples from the literature. There is also discussion of different methods of metallating cyclopentadienes and the influence of the choice of method on the ratio of stereoisomers produced. Chapter 2 is a selective review of methods of synthesising cyclopentadienes and cyclopentadiene precursors (i.e. cyclopentenones and cyclopentenois). The review is biased towards syntheses which have been (or have the potential to be) used for the production of multigram batches of cyclopentadienes (and cyclopentadiene precursors) with structures of interest to organometallic chemists. Chapter 3 presents the experimental work. The results are discussed first, after which the experimental procedures are presented. The aliphatic Friedel-Crafts/Nazarov reaction between crotonic acid and cyclohexene in warm polyphosphoric acid is an established method of synthesising 3-methyl-23.4,5,6,7-hexahydro-l//-inden-l-one (HKI). The technique has been improved by adding a semicarbazone formation-hydrolysis purification step to remove the inevitable cyclohexyl с ratónate by product.I-(3,5-dimethylphenyl)-3-methyl-4,5,6,7-telrahydro-2W-mdene (HCpl) was prepared from 3-melhyl-2,3,4,5,6,7- hexahydro-1 Я-inden-1 -one (HKl) by the use of 3,5-dimethylpheny! magnesium bromide in THF. HCpl was highly convenient on account of its crystallmity and was used to make metal complexes either by deprotonation and reaction with a metal chloride (FeCb) or through prior conversion to {R,ร)-1 -(3,5-dimethylphenyl)-2-(trimethylsiIyl)-3-methyl- 4,5,6,7-tetrahydro-2//-indene (TMSCpl). The latter compound reacted readily with ZrCİ4, TİCİ4 and NbCI.s, although only the reaction with TİCI4 lead to a isolable compound, η'՝-[l֊(3,5֊dimethylphenyl)-3-methyI-4,5,6,7-tetrahydro-2Я- indenyl]trichlorotiianium(IV) (CplTiCb). ： The reaction of deprotonated HCpl with FeCli produced two ferrocenes, a major product, հւտ-Վ-[[Հ?>,5֊ dimethyiphenyl)-3-methyl-4,5,6,7-tetrahydro-2//-inđenyl]iron(II) (СрІзРе), and a minor product, η'-[I-(3,5- dimethylphenyl)-3-methyl-4,5,6Jчetrahydro-2/ƒ-indenyI]-η^-[lЧЗ,5-dinไethylphenyl)-2-formyl-3-melhyl-4,5,6,7֊ tetrahydro-2/y-indenyl]iron(II) (CplCp2Fe). The minor product was thought to derive from some unknown impurity in the starling materials.Crystal structures of TMSCpl and CplCp2Fe were obtained. The molecular structure of the latter is discussed. To finish chapter 3, a proposal is outlined for a novel phosphonium salt/phosphorus ylid based approach to the synthesis of cyclopentadienes. The proposed reactions were not carried out, but it is hoped thai a future investigator will conduct experiments in this area.Appendix і gives some useful information on the naming of substituted hydroindenes.Appendix 2 presents information and calculations on the composition of polyphosphoric acid. It also gives a method of making polyphosphoric acid in the lab.Appendix 3 gives the crystal structure of TMSCpl ((;?,5)-l-{3,5-dimethylphenyl)-2-(trimethylsilyl)-3-methyl-4,5,6,7- tetranydro-2//-indene)Appendix 4 gives the crystal structure of CplCp2Fe (η^-[Ι -(3,5-dimethylphenyl)-3-methyl-4,5,6,7-tetrahydro-2^- indenyl]-n^4143,5-dimethyiphenyl)-2-formyl-3-methyl-4,5,6,7-tetrahydro-2//MndenyI]iron(ĪI))References for each chapter are collected together at the end of the chapter. References for the collected appendices are to be found at the very rear of the thesis
North-vvest Fox, or, Fox from the North-west passage Beginning vvith King Arthur, Malga, Octhur, the two Zeni's of Iseland, Estotiland, and Dorgia; following with briefe abstracts of the voyages of Cabot, Frobisher, Davis, Waymouth, Knight, Hudson, Button, Gibbons, Bylot, Baffin, Hawkridge ... Mr. Iames Hall's three voyages to Groynland, with a topographicall description of the countries, the salvages lives and treacheries, how our men have beene slayne by them there, with the commodities of all those parts ... demonstrated in a polar card, wherein are all the maines, seas, and ilands, herein mentioned. With the author his owne voyage, being the XVIth. with the opinions and collections of the most famous mathematicians, and cosmographers ... By Captaine Luke Foxe of Kingstone vpon Hull, capt. and pylot for the voyage, in his Majesties Pinnace the Charles. Printed by his Majesties command.
No full textNorth-vvest Fox, or, Fox from the North-west passage Beginning vvith King Arthur, Malga, Octhur, the two Zeni's of Iseland, Estotiland, and Dorgia; following with briefe abstracts of the voyages of Cabot, Frobisher, Davis, Waymouth, Knight, Hudson, Button, Gibbons, Bylot, Baffin, Hawkridge ... Mr. Iames Hall's three voyages to Groynland, with a topographicall description of the countries, the salvages lives and treacheries, how our men have beene slayne by them there, with the commodities of all those parts ... demonstrated in a polar card, wherein are all the maines, seas, and ilands, herein mentioned. With the author his owne voyage, being the XVIth. with the opinions and collections of the most famous mathematicians, and cosmographers ... By Captaine Luke Foxe of Kingstone vpon Hull, capt. and pylot for the voyage, in his Majesties Pinnace the Charles. Printed by his Majesties command.
No full textRationale and design for the detection and neurological impact of cerebrovascular events in non-cardiac surgery patients cohort evaluation (NeuroVISION) study : a prospective international cohort study
No full textPerioperative covert stroke in patients undergoing non-cardiac surgery (NeuroVISION) : a prospective cohort study
No full text
