2,585 research outputs found
Supplemental data for Comparative rhizotaxy of fossil and living isoetalean rhizomorphs reveals development through rootlet intercalation within a triangular lattice
Supplemental data: Background and Aims: The Isoetales are a clade of lycopsids that evolved colossal arborescent forms during their Palaeozoic prime but today are represented solely by the small herbaceous monogeneric Isoetes. Despite the differences in scale of taxa in the clade the rooting system of all members consists of two-parts, a rhizomorph from which rootlets develop in a regular pattern termed rhizotaxy. Rhizomorphs are highly diverse in different members leading to different terminology being used to describe rhizotaxy in different lineages. Here we set out to investigate how conserved rhizotaxy was between taxa and to provide a standard geometric definition, and developmental interpretation of rhizotaxy applicable to all members. Methods: We developed a pipeline to quantitatively describe rhizotaxy. This pipeline allowed rootlet arrangement to be captured in 3D, before being visualsed on a 2D lattice where Deluany Triangulation could be applied. This method offers a standard method to investigate rhizotaxy across disparate rhizomorphs. Next, to investigate the evolution and development of rhizotaxy we applied our pipeline to a 3D model we generated of the rooting system of the extinct Carboniferous lycopsids Oxroadia. Finally, we made direct observations of rootlet development in Isoetes using time course imaging. Key Results: We demonstrate that rhizotaxy can be described as an equallateral triangular lattice for all members of the Isoetales including Oxroadia. By combining evidence from direct observation of rootlet development in Isoetes with inferences of rootlet development and the early stages of sporophyte ontogeny of Oxroadia we conclude that the conserved rhizotaxy developed by the process of rootlet intercalation. Conclusions: We provide a single geometric definition, and predicted developmental mechanism for rhizotaxy that applies to all Isoetales. Our findings call into question the literal interpretation that the rhizomorph is a modified shoot
James Bond: international man of gastronomy
This article is concerned with the representation of food and drink in Ian Fleming’s James Bond novels. In particular, it examines how the author uses Bond’s culinary knowledge and habits of consumption as an important constituent of his hero’s character. Similarly, the food choices of other characters, notably villains, are shown to be linked, by Fleming, to core aspects of their identity − principally their ethnicity. Bond’s impulse to observe and classify, very much in evidence in the novels’ food sequences, is examined in terms of the texts’ construction of Bond as a skilled identifier of signs
Interview with Jeremy King, March 15, 2010
Interview Themes: What brought King to the field and how his approach to it has changed over time (00:33)
On King's work as transition from national to post-national history (06:00)
Alternative loci of identity formation besides nationalism (11:17)
How we should teach the next generation about nationalism (18:12)
Territorialization of nationhood in the 20C (25:33)
How knowledge of langauges affects research and findings (37:20)
How to deal with the conceptual disappearance/invisibility of East-Central Europe (44:02)
What is yet to be done in this field (53:38)Interview with Jeremy King, Associate Professor of History at Mount Holyoke College, conducted in Ithaca, NY on March 15, 2010. Professor King is the author of "Budweisers into Czechs and Germans: A Local History of Bohemian Politics, 1848-1948," published by Princeton University Press in 2002.1_yov93rq
Photogrammetry model of Jurassic fossil nurse log
Photogrammetry model of Jurassic fossil nurse log.
A ca. 150-million-year-old nurse log was discovered and described from the Jurassic of Scotland, using classic palaeobotanical techniques and microscopy. The wood was collected along the foreshore north east of Helmsdale (58°07'15.8"N 3°37'48.6"W).
We interpret our new finding within the evolution of conifers with a literature review of fossil nurse logs, fungal and arthropod evolution.
The method to create the photogrammetry model was as follows: Images of thin sections examined at the University of Edinburgh were taken using a Keyence VHX-7000N. The HDR Function of the Keyence VHX-7000N was used to maximise image quality. Macro scale features of the nurse log were taken under cross-polarised light with a Canon EOS 5D Mark IV camera and EF 100mm f/2.8L Macro IS USM lens. This camera and lens set up was also used to capture the 3D structure of the nurse log using photogrammetry. Photographs were taken of the specimen placed on a Genie mini II turntable from Syrp Lab within a 16”x16” Neewer Studio Box lightbox. A scaled model and renders were created using AgiSoft Metashape Professional (64-bit).>Nurse log rotation0001-0250.mkv
A video showing the 3D structure of the fossil nurse log
>Nurse log with texture.glb
A 3D object file of the fossil nurse log
A vindication of the Reasons and Defence, &c. Part 1. [electronic resource] : Being a reply to the first part of No sufficient reason for restoring some prayers and directions of King Edward Vi's first Liturgy. By the author of the Reasons and Defence.
The author of the Reasons = Jeremy Collier.Also issued as part of: 'A collection of tracts written by the late Reverend .. Jeremy Collier, ..', London, 1736.With a half-title.Electronic reproduction.English Short Title Catalog,Reproduction of original from British Library
Inorganic polymer fiber composites for protection of structures
The primary focus of this thesis is to demonstrate the suitability of an inorganic polymer composite for transportation structures. The three major themes are: field application, graffiti resistance, and evaluation of self-cleaning and de-pollution properties. Previous Studies have demonstrated the potential of the composite made of alumino-silicate polymer and carbon fibers for field applications. This thesis presents results of three field applications, evaluation of graffiti resistance including removal techniques and documentation for self-cleaning and de-pollution properties. For field application, pigment combinations were developed to match the colors of existing structures or to blend with the surrounding areas. Two field applications were done primarily by the author and the third one was completed with the help of daily laborers supplied by a contractor. In all three cases the applications were completed without encountering any technical problems. In the area of graffiti resistance, commercially available products are reviewed. After evaluation of various removal techniques the author recommends the use of citric-based cleaner with high pressure washer or high pressure water with baking soda. For self cleaning, both laboratory and filed tests were conducted. The results show that the coating effectively cleans organic pollutants and the results compare well with those reported for anatase Titanium Dioxide containing concrete and mortar. Performance in the field can be simulated in the laboratory by using UV lamps. The results of the de-pollution study also shows that the results are comparable to the results reported in the European PICADA study where they used concrete or concrete mortar containing Titanium Dioxide. Based on the results obtained it can be concluded that the composite is ready for large scale field applications.M.S.Includes abstractIncludes bibliographical referencesby Jeremy Brownstei
Jeremy Waldron and the Philosopher\u27s Stone
The author considers Jeremy Waldron\u27s argument in favour of referring to, and on occasion perhaps even deferring to, foreign law. Waldron rests his argument on an analogy to how science works. The author argues this analogy is flawed. Indeed the author argues that Waldron\u27s position on this issue is inconsistent with his earlier writings on the undesirability of strong judicial review under an entrenched bill of rights
A Visit (in 1831) To Jeremy Bentham
Upon the death of his father Jeremiah in 1792, Jeremy Bentham inherited the family home in Queen’s Square Place, Westminster. Queen’s Square Place consisted of two houses, and it was in the larger of these two residences that Bentham lived for the next forty years. Bentham referred to his abode as the Hermitage and himself as the Hermit. Despite this apparent reclusiveness, many notable statesmen, politicians, lawyers, and intellectuals visited him, although some equally prominent figures (such as Madame de Staël) were refused an audience.
This text is the most detailed account that has hitherto appeared of how Jeremy Bentham lived at Queen's Square Place, his home in Westminster, during his final years. The author, George Wheatley, visited Bentham in March 1831, and stayed with him for approximately three weeks. Six of Wheatley's letters sent to his sister during his stay, as well as six extracts from his journal, and a short commentary on John Hill Burton's 'Benthamiana', were collated and printed privately for the author by P.H. Youngman, Maldon, in about 1853. The resulting volume, 64 pages long and entitled 'A Visit (in 1830) to Jeremy Bentham' has been transcribed and lightly annotated, and is published online here for the first time. The only known copy of the text is in the possession of the Bentham Project.
The text also features an editorial introduction by Dr Kris Grint
Personalities in Publishing: Jeremy Wilson
The seventeenth essay in this series profiles Jeremy Wilson, who is a history scholar, and the author and editor of a number of volumes on T.E. Lawrence, his life and writing. Over the course of his career as a Lawrence scholar, Wilson learned letterpress printing and desktop publishing. In 1996, he turned his attention to the Internet, establishing a reference web site for fellow Lawrence enthusiasts. </jats:p
The Coronavirus Pandemic, Science Fiction, and the Contingent Nature of Roads
In this blog post Jeremy Withers, author of Futuristic Cars and Space Bicycles, considers the impact of the coronavirus pandemic on our urban environments, in relation to science fiction’s frequent focus on futuristic and post-apocalyptic settings.This blog is published as Withers, Jeremy., “The Coronavirus Pandemic, Science Fiction, and the Contingent Nature of Roads,” Liverpool University Press Blog (July 29, 2020). https://liverpooluniversitypress.blog/2020/07/29 . Posted with permission
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