528 research outputs found

    A new kind of ancestor: ardipithecus unveiled

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    The Industrial Relations (Amendment) Act of 2001 : its effects and the implications for workers and trade unions in Ireland

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    This thesis concerns the Industrial Relations (Amendment) Act of 2001, its effects on workers and implications for trade unions in Ireland. The legislation provides a means of resolving the substantive issues in dispute between workers and employers when employers refuse to recognise the trade union articulating those issues. It may also deal with procedural issues but may not provide for collective bargaining. In abeyance since 2007 due to legal challenges, and amid Government commitments to return the Act to its original intent, this thesis seeks to provide an evidence based response to the various calls for the Act’s amendment or replacement. A mixed methods approach contributed to an extensive examination of the cases taken under the Act: - Documentary analysis of all Labour Court Recommendations issued - A tracing of each workplace back to the union which referred the case - A survey of union officials currently or potentially responsible for the members at workplaces where cases had previously been taken - Interviews with union members, activists and staff in ten selected cases The Labour Court Recommendations, in complying with the terms of the Act, must and do accept non-union fora for the resolution of collective issues and effectively corral trade unions into individual representation, managing misbehaviour and exit. Focussing also on the aftermath of the Labour Court Recommendations afforded a unique understanding of the effects on workers and their trade unions; the effects of the process in addition to the effects of the written outcome. The research found that the majority of workplaces no longer have union members. Those still in membership display low levels of density and of activism and a distinct link is demonstrated between the union organising approach and such outcomes in each case. Those campaigns conducted with a greater emphasis on mobilisation or organising model techniques, where the referral under the 2001 Act was just one element in a broad campaign were more successful in achieving collective bargaining and better membership density and activism levels. The study recommends caution regarding sole reliance on the procedures provided by the Act

    Carybdea branchi, sp. nov., a new box jellyfish (Cnidaria: Cubozoa) from South Africa.

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    A common and conspicuous member of the medusan fauna of South Africa has been the subject of repeated taxonomic confusion. After having been mistakenly identified by earlier workers as either Carybdea alata or Tamoya haplonema, this large and colourful carybdeid is described herein as Carybdea branchi, sp. nov. It is distinguished from its congeners on numerous characters: body to about 8cm in life, densely scattered with nematocyst warts over the whole body and abaxial keels of the pedalia; a bulge or lateral thorn on the pedalial canal bend; with 2 dendritic velarial canals per octant, highly diverticulated; with a long manubrium; with greatly bushy epaulette-like phacellae, comprising 20 or more roots tightly clustered; with well developed mesenteries; and with conspicuous brownish pigmented areas over the proximal and distal regions of the pedalia and over the phacellae. A comparative table of the primary diagnostic characters of species in the genus Carybdea is given

    An environmental assessment of Bermuda's caves

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    The current environmental status of the majority of Bermudas one hundred sixty-six known caves was investigated. This survey replicated a historical cave study performed in 1983, wherein each was analyzed for positive and negative features. Statistical analysis of the data showed a significant difference between the historical and current survey ratings, with an overall decrease in environmental status. A water quality study was performed on twenty different caves with sea level pools in various locations around the island. Nitrate, nitrite, ammonia, and phosphate levels were measured from varying depths in these caves. Fifteen of these caves were also tested for the presence of fecal bacterial contamination. High nitrate levels were discovered in some of the caves, particularly in surface samples. Additionally, bacterial contamination was detected in some caves. No obvious relationship between cave size or location and contamination existed for any of the pollutants sampled. Three separate caves from this group were dived and analyzed using a Hydrolab Sonde 3 Multiprobe Logger to acquire in situ water column data including depth, temperature, pH, salinity, and dissolved oxygen. Each cave studied had its own unique trends in hydrology at varying depths in the water column. A later water sampling study with a randomized experimental design was created and caves were divided into four classes based on size and location. Surface and subsurface samples were gathered from twelve randomly selected caves, three from each class. Each sample was analyzed for nitrate, nitrite, and ammonia concentrations. The results were analyzed using multiple analysis of variance statistics. A significant difference between the nitrate concentrations in the surface and subsurface water samples was discovered. None of the other comparisons were statistically significant. To represent the data visually, a Bermuda Cave and Karst Information System (BeCKIS) was created using the environmental survey data and water quality information. Some of the maps generated highlighted regions where negative environmental impacts on caves were concentrated geographically, thus demonstrating how this geographic information system could be used as a conservation tool

    A modern description of Crambionella stuhlmanni (Scyphozoa: Rhizostomeae) from St. Lucia Estuary, South Africa

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    A new record of Crambionella stuhlmanni is reported from the east coast of South Africa. The material is described using quantitative morphological data, and mitochondrial (CO1) and nuclear (ITS-1) sequence data. The species can be diagnosed by a combination of morphological features including the presence of conical projections on velar lappets, the absence of orbicular appendages among mouthlets and the short length of the terminal club on the oral arm. Mitochondrial sequence data unambiguously delineate C. stuhlmanni as a separate species from C. orsini, and phylogenetic analyses support its placement within the monophyletic genus, Crambionell

    Wolf Vostell’s Betonbuch [Concrete Book]: Materials and Meanings

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    In the late 1960s and early 1970s, Fluxus co-founder Wolf Vostell (1932–1998) used concrete as an actual material for his unique body of work, including the Betonbuch [Concrete Book]. Vostell’s Concrete Book is a concrete slab in the shape of a book, measuring 34x25x4.5 cm, weighing about 9 kg (20 pounds) that is believed to encapsulate a copy of the author’s paper-based booklet Betonierungen (Concretifications) which comprises unbound reproductions of many of his concrete works and utopian proposals to ‘concretify’ cities, furniture, and even clouds. In 1971, the artist constructed one hundred copies of the Concrete Book, and the copy no83 is in the holdings of the University of Chicago Library collection of rare artists’ books. An unreadable book in any conventional sense, Concrete Book foregrounds tactility, physicality and materiality, providing a unique opportunity to explore questions of making and meaning: why the materials of bookmaking matter and how they signify. We assume that there is truly a book inside, but how can we confirm its presence? What non-destructive tests could be used to examine the inner contents? This paper presents the results of an interdisciplinary study of Vostell’s book that brings together curatorial, conservation and material science expertise and discusses how new material knowledge can enrich our understanding of an object’s biography. Employing Vostell’s Betonbuch as a reference point, this paper also explores the challenges libraries, conservators and scientists face when collecting and caring for works on unusual materials, discussing issues in storing and preserving these materials, and illustrating broader challenges in collection care and stewardship. This presentation was given as part of the Challenges in Caring for Art and Art Libraries: Preservation, Management, and Access panel
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