2,490 research outputs found
Biodiversity of the Shuswap-South Thompson region: A cross-cultural overview
ReportA report prepared for the Living Landscapes Project, Royal British Columbia Museum, Victoria, B.C
A new specimen of Valdosaurus canaliculatus (Ornithopoda: Dryosauridae) from the Lower Cretaceous of the Isle of Wight, England
Memoirs of Museum Victoria is an open access journal. The attached file is the published version of the article
Biodiversity of the Shuswap-South Thompson region: A cross-cultural overview
ReportA report prepared for the Living Landscapes Project, Royal British Columbia Museum, Victoria, B.C
Dendrogramma, new Genus, with two new non- bilaterian species from the Marine Bathyal of Southeastern Australia (Animalia, Metazoa incertae sedis) – with similarities to some medusoids from the precambrian ediacara
This study examines a new species of dinosaur named Dendrogramma, which has been found near Bass Strait.
Abstract
A new genus, Dendrogramma, with two new species of multicellular, non-bilaterian, mesogleal animals with some bilateral aspects, D. enigmatica and D. discoides, are described from the south-east Australian bathyal (400 and 1000 metres depth). A new family, Dendrogrammatidae, is established for Dendrogramma. These mushroom-shaped organisms cannot be referred to either of the two phyla Ctenophora or Cnidaria at present, because they lack any specialised characters of these taxa. Resolving the phylogenetic position of Dendrogramma depends much on how the basal metazoan lineages (Ctenophora, Porifera, Placozoa, Cnidaria, and Bilateria) are related to each other, a question still under debate. At least Dendrogramma must have branched off before Bilateria and is possibly related to Ctenophora and/or Cnidaria. Dendrogramma, therefore, is referred to Metazoa incertae sedis. The specimens were fixed in neutral formaldehyde and stored in 80% ethanol and are not suitable for molecular analysis. We recommend, therefore, that attempts be made to secure new material for further study. Finally similarities between Dendrogramma and a group of Ediacaran (Vendian) medusoids are discussed
Bulletin of the Massachusetts Archaeological Society, Vol. 73, No. 1
The Past Is with Us on Third Cliff Beach (Cynthia Krusell) Examination of Bone Harpoon from Third Cliff, Scituate, Massachusetts (Tonya Largy) A Deep Sea Plummet from Carver, MA (William B. Taylor) Looking at Archaeology in New England from Three Feet above the Water (Jonathan K. Patton) A Preliminary Report on Surface Collections and Initial Recovery Efforts on an Archaic Site on the Town Forest Branch Brook, Western Danvers, Massachusetts (David P. McKenna) Whaletail Pendants (William B. Taylor) A Place of Respect for the Robbins Museum (Victoria Rourke-Rooney
Vibrational Spectroscopy of Selected Natural Uranyl Vanadates
Raman spectroscopy has been used to study a selection of uranyl vanadate minerals including carnotite, curienite, francevillite, tyuyamunite and metatyuyamunite. The minerals are characterised by an intense band in the 800 to 824 cm-1 region, assigned to the ν1 symmetric stretching vibrations of the (UO2)2+ units. A second intense band is observed in the 965 to 985 cm-1 range and is attributed to the ν1 (VO3) symmetric stretching vibrations in the (V2O8) units. This band is split with a second component observed at around 963 cm-1. A band of very low intensity is observed around 948 cm-1 and is assigned to the ν3 antisymmetric stretching vibrations of the (VO3) units. Bands in the range 608-655 cm-1 may be attributed to molecular water librational modes or the stretching modes ○(V2O2) units. Bands in the range 573-583 cm-1 may be connected with the ○ (U-Oequatorial) vibrations or ○ (V2O2) units. Bands located in the range 467-539 cm-1 may be also attributed to the ○ (U-Oequatorial) units vibrations. The bending modes of the (VO3) units are observed in the 463 to 480 cm-1 range – there may be some coincidence with ○ (U-Oequatorial). The bending modes of the (V2O2) in the (V2O8) units are located in a series of bands around 407, 365 and 347 cm-1 (ν2). Two intense bands are observed in the 304 to 312 cm-1 range and 241 to 264 cm-1 range and are assigned to the doubly degenerate ν2 modes of the (UO2)2+ units. The study of the vibrational spectroscopy of uranyl vanadates is complicated by the overlap of bands from the (VO3) and (UO2)2+ units. Raman spectroscopy has proven most useful in assigning bands to these two units since Raman bands are sharp and well separated as compared with infrared bands. The uranyl vanadate minerals are often found as crystals on a host matrix and Raman spectroscopy enables their in-situ characterisation without sample preparation
Planning research and educational partnerships with Indigenous communities : practice, realities and lessons
Increasingly planning practice and research are having to engage with Indigenous communities in Australia to empower and position their knowledge in planning strategies and arguments. But also to act as articulators of their cultural knowledge, landscape aspirations and responsibilities and the need to ensure that they are directly consulted in projects that impact upon their ‘country’ generally and specifically. This need has changed rapidly over the last 25 years because of land title claim legal precedents, state and Commonwealth legislative changes, and policy shifts to address reconciliation and the consequences of the fore-going precedents and enactments. While planning instruments and their policies have shifted, as well as research grant expectations and obligations, many of these Western protocols do not recognise and sympathetically deal with the cultural and practical realities of Indigenous community management dynamics, consultation practices and procedures, and cultural events much of which are placing considerable strain upon communities who do not have the human and financial resources to manage, respond, co-operate and inform in the same manner expected of non-Indigenous communities in Australia. This paper reviews several planning formal research, contract research and educational engagements and case studies between the authors and various Indigenous communities, and highlights key issues, myths and flaws in the way Western planning and research expectations are imposed upon Indigenous communities that often thwart the quality and uncertainty of planning outcomes for which the clients, research agencies, and government entities were seeking to create.<br /
Hydrated Double Carbonates - A Raman and Infrared Spectroscopic Study
The Raman spectra of selected double carbonates including pirssonite, gaylussite, shortite and quintinite complemented with infrared spectra have been used to characterise the structure of these carbonate minerals. By using a Libowitzky type function hydrogen bond distances for these minerals of 2.669 to 2.766 Ã… are estimated. The variation in the hydrogen bond distances contributed to the stability of the mineral. The Raman spectrum of pirssonite shows a single band at 1080 cm-1 attributed to the (CO3)2- symmetric stretching mode, in contrast to shortite and quintinite where two bands are observed. Multiple bands are observed for the antisymmetric stretching and bending region for these minerals proving that the carbonate unit is distorted in the structure of pirssonite and gaylussite
- …