Search

Your search keyword '"Julia M. James"' showing total 10 results
Start Over Author "Julia M. James"
10 results on '"Julia M. James"'

1. Contributors

Author

Kevin Allred, Barbara Anne am Ende, Darlene M. Anthony, Augusto S. Auler, Michel Bakalowicz, Craig M. Barnes, Hazel A. Barton, Ofer Bar-Yosef, Anne Bedos, Maria E. Bichuette, Ronny Boch, Terry Bolger, James E. Brady, Anton Brancelj, Roger W. Brucker, Codi M. Bure, Prosanta Chakrabarty, Weihai Chen, Mary C. Christman, Arrigo A. Cigna, Gregg S. Clemmer, James G. Coke, Annalisa K. Contos, George Crothers, David C. Culver, Donald G. Davis, Louis Deharveng, Teo Delić, Rhawn F. Denniston, Wolfgang Dreybrodt, Yvonne Droms, Yuri Dublyansky, Elzbieta Dumnicka, Lee F. Elliott, Annette Summers Engel, Derek Fabel, Arnaud Faille, Dante B. Fenolio, Rodrigo Lopes Ferreira, Žiga Fišer, Cene Fišer, Daniel W. Fong, Derek Ford, Andrew G. Fountain, S. Beth Fratesi, Markus Friedrich, Silvia Frisia, Franci Gabrovšek, Diana M.P. Galassi, Janine Gibert, Andrew G. Gluesenkamp, Paul Goldberg, Špela Gorički, Darryl E. Granger, Ronald T. Green, Jason D. Gulley, Philipp Häuselmann, Phillip D. Hays, Jill Heinerth, Janet S. Herman, Frédéric Hervant, Carol A. Hill, Horton H. Hobbs III, Cato Holler, Francis G. Howarth, David A. Hubbard, William F. Humphreys, Julia M. James, Pierre-Yves Jeannin, William R. Jeffery, William K. Jones, Patricia Kambesis, Brian G. Katz, Georg Kaufmann, Stephan Kempe, Alexander Klimchouk, Katherine J. Knierim, Marjeta Konec, Johanna E. Kowalko, Jean K. Krejca, Leonardo Latella, Caroline M. Loop, Ivo Lučić, Marko Lukić, Joyce Lundberg, Li Ma, Jennifer L. Macalady, Maurizio Mainiero, Florian Malard, Peter Matthews, Jim I. Mead, Douglas M. Medville, Luis M. Mejía-Ortíz, Mark Minton, Marianne S. Moore, Janez Mulec, Phillip J. Murphy, John E. Mylroie, Matthew L. Niemiller, Bogdan P. Onac, Arthur N. Palmer, Mario Parise, Ceth W. Parker, María Alejandra Pérez, Aurel Perșoiu, Tanja Pipan, Victor J. Polyak, Vincent Prié, James R. Reddell, Douchko Romanov, Cordelia Ross, Ira D. Sasowsky, Ugo Sauro, Francesco Sauro, Blaine W. Schubert, Benjamin Schwartz, Stanka Šebela, William A. Shear, Thomas E. Shifflett, Kevin S. Simon, Boris Sket, Michael E. Slay, Daphne Soares, Gustavo A. Soares, Christoph Spötl, Gregory S. Springer, Paul Jay Steward, Andrea Stone, Steven J. Taylor, Eleonora Trajano, Peter Trontelj, Rudi Verovnik, Dorothy J. Vesper, Tony Waltham, Patty Jo Watson, Elizabeth L. White, William B. White, Mike Wiles, C. William Steele, John M. Wilson, Stephen R.H. Worthington, Mary Elizabeth Yancey, Jun-xing Yang, Maja Zagmajster, Yuanhai Zhang, Yahui Zhao, Xuewen Zhu, Kirk S. Zigler, and Nadja Zupan Hajna

Published
2019
Full Text
View/download PDF

2. Nullarbor Caves, Australia

Author

Craig M. Barnes, Julia M. James, and Annalisa K. Contos

Subjects
geography, geography.geographical_feature_category, Cave, Economic shortage, Karst, Archaeology, Geology, World class
Abstract

In Australia, the karst land referred to as the Nullarbor covers an area in excess of 200,000 km 2 , although in proportion to its area the karst is poor in known caves. Despite being referred to by their collective name, the Nullarbor Caves, many of the individual caves are world class in their own right. In the world of caves, where in most cases biogenic carbon dioxide and surface waters provide the essential ingredients for the solution of limestone and the precipitation of decorations, the more of both, the bigger and more spectacular the caves. The Nullarbor Caves provide an example of how caves can originate, enlarge, and become decorated with speleothems at times when there is a shortage of both.

Published
2019
Full Text
View/download PDF

3. Morphoanalysis of Bacterially Precipitated Subaqueous Calcium Carbonate from Weebubbie Cave, Australia

Author

K Pitt, Brigid R. Heywood, Annalisa K. Contos, Peter Rogers, and Julia M. James

Subjects
Calcite, geography, geography.geographical_feature_category, Morphology (linguistics), Mineralogy, Solution chemistry, musculoskeletal system, Crystal morphology, Microbiology, humanities, law.invention, chemistry.chemical_compound, Crystallography, Calcium carbonate, Cave, chemistry, law, Earth and Planetary Sciences (miscellaneous), Environmental Chemistry, Crystallization, Geology, General Environmental Science
Abstract

In this article, we present a previously unreported morphology of bacterially precipitated calcite (determined using XRD, FTIR, and SAED) occurring subaqueously in Weebubbie Cave. Observations using FESEM and TEM revealed spindle-shaped crystals with curved {hk.O} faces lying parallel to the c-axis. Calcite precipitated under conditions designed to mimic the inorganic solution chemistry of the cave revealed a different morphology. These differences between the crystals suggest that the formation of the cave crystals is a consequence of biologically activity.

Published
2001
Full Text
View/download PDF

4. Phylogenetic structure of unusual aquatic microbial formations in Nullarbor caves, Australia

Author

Niina Tujula, Annalisa K. Contos, Peter Rogers, Andrew J. Holmes, Julia M. James, Marita Holley, and Michael R. Gillings

Subjects
Geologic Sediments, Molecular Sequence Data, DNA, Ribosomal, Microbiology, chemistry.chemical_compound, Cave, Nitrate, Phylogenetics, RNA, Ribosomal, 16S, Botany, Biomass, Autotroph, Nitrite, Ecosystem, Phylogeny, Ecology, Evolution, Behavior and Systematics, Calcite, geography, Nitrates, geography.geographical_feature_category, Bacteria, biology, Nitrospira moscoviensis, Ecology, Australia, Community structure, biology.organism_classification, chemistry, Water Microbiology
Abstract

The nature of unusual aquatic microbial formations in flooded passages of cave systems in the Nullarbor region of Australia was investigated using electron microscopy and DNA analysis. The caves are located in a semiarid region but intersect the watertable at depths of approximately 100 m below the surface. Throughout submerged portions of the caves divers have noted the presence of unusual microbial formations. These 'microbial mantles' comprise sheets or tongues of mucoid material in which small crystals are embedded. Examination of the biomass revealed it to be primarily composed of densely packed, unbranched filaments, together with spherical-, rod- and spiral-shaped cells, and microcrystals of calcite in a mucoid matrix. Molecular phylogenetic analysis of the community structure revealed approximately 12% of clones showed high similarity to autotrophic nitrite-oxidizing bacteria (Nitrospira moscoviensis). The remainder of the clones exhibited a high proportion of phylogenetically novel sequence types. Chemical analysis of water samples revealed high levels of sulphate and nitrate together with significant nitrite. The community structure, the presence of nitrite in the water, and the apparent absence of aquatic macrofauna, suggest these microbial structures may represent biochemically novel, chemoautotrophic communities dependent on nitrite oxidation.

Published
2001
Full Text
View/download PDF

5. List of Contributors

Author

Giuliana Allegrucci, Kevin Allred, Barbara Anne am Ende, Darlene M. Anthony, Manfred Asche, Augusto S. Auler, Michel Bakalowicz, Craig M. Barnes, Ofer Bar-Yosef, Barry Beck, Anne Bedos, Claude Boutin, James E. Brady, Anton Brancelj, Roger W. Brucker, Donatella Cesaroni, Weihai Chen, Kenneth Christiansen, Mary C. Christman, Gregg S. Clemmer, Marina Cobolli, Nicole Coineau, James G. Coke, Annalisa K. Contos, David C. Culver, Dan L. Danielopol, Nevin W. Davis, Donald G. Davis, Louis Deharveng, Rhawn F. Denniston, Joel Despain, Wolfgang Dreybrodt, Yvonne Droms, Yuri Dublyansky, Elzbieta Dumnicka, William R. Elliott, Derek Fabel, Danté B. Fenolio, Cene Fišer, Daniel W. Fong, Derek Ford, Andrew G. Fountain, Silvia Frisia, Nathan W. Fuller, Franci Gabrovšek, Janine Gibert, Pedro Gnaspini, Paul Goldberg, Špela Gorički, Darryl E. Granger, Jason D. Gulley, Philipp Häuselmann, Jill Heinerth, John C. Hempel, Janet S. Herman, Frédéric Hervant, Carol A. Hill, Horton H. Hobbs, Hannelore Hoch, John R. Holsinger, Francis G. Howarth, David A. Hubbard, William F. Humphreys, Kathrin Hϋppop, Julia M. James, Paul Jay Steward, Pierre-Yves Jeannin, William R. Jeffery, Patty Jo Watson, William K. Jones, Patricia Kambesis, Brian G. Katz, Georg Kaufmann, Stephan Kempe, Alexander Klimchouk, Thomas H. Kunz, Caroline M. Loop, Ivo Lučić, Joyce Lundberg, Li Ma, Florian Malard, Jim I. Mead, Douglas M. Medville, Mark Minton, Marianne S. Moore, Janez Mulec, Phillip J. Murphy, Susan W. Murray, John E. Mylroie, Matthew L. Niemiller, Bogdan P. Onac, Arthur N. Palmer, Jakob Parzefall, Aurel Perşoiu, Tanja Pipan, Victor J. Polyak, Thomas L. Poulson, Joseph A. Ray, James R. Reddell, Douchko Romanov, Raymond Rouch, Ira D. Sasowsky, Ugo Sauro, Valerio Sbordoni, Blaine W. Schubert, Stanka Šebela, William A. Shear, Kevin S. Simon, Boris Sket, James H. Smith, Gregory S. Springer, C.William Steele, Andrea Stone, Fred D. Stone, Annette Summers Engel, Oana Teodora Moldovan, Eleonora Trajano, Peter Trontelj, George Veni, Rudi Verovnik, Dorothy J. Vesper, Tony Waltham, Elizabeth L. White, William B. White, Mike Wiles, Horst Wilkens, John M. Wilson, Jon D. Woodhead, Stephen R.H. Worthington, Maja Zagmajster, Yuanhai Zhang, Ya-hui Zhao, Xuewen Zhu, and Nadja Zupan Hajna

Published
2012
Full Text
View/download PDF

6. Amino acid composition of stromatolitic stalagmites

Author

Guy Cox, Emilios Patsalides, and Julia M. James

Subjects
Cyanobacteria, chemistry.chemical_classification, Calcite, geography, geography.geographical_feature_category, biology, Stalagmite, biology.organism_classification, Microbiology, humanities, Amino acid, chemistry.chemical_compound, chemistry, Cave, Amino acid composition, Biochemistry, Dark zone, Botany, Earth and Planetary Sciences (miscellaneous), Environmental Chemistry, Diaminopimelic acid, General Environmental Science
Abstract

The amino acid compositions of stromatolitic stalagmites from cave entrances and stalagmites from the dark zone of caves have been determined and compared. Stromatolitic stalagmites were found to contain relatively high concentrations of protein amino acids (0.1–0.6% w/w) and diaminopimelic acid (0.004–0.012% w/w), while other stalagmites were essentially devoid of such organic compounds (

Published
1994
Full Text
View/download PDF

8. Cyanobacterially deposited speleothems: Subaerial stromatolites

Author

Guy Cox, R. Armstrong L. Osborne, Julia M. James, and Keith E.A. Leggett

Subjects
Characteristic morphology, Calcite, geography, geography.geographical_feature_category, Stalagmite, Microbiology, Deposition (geology), chemistry.chemical_compound, Paleontology, chemistry, Cave, Subaerial, Earth and Planetary Sciences (miscellaneous), Environmental Chemistry, Aeolian processes, Geology, General Environmental Science, Biomineralization
Abstract

Stalagmites, which appear to be deposited by cyanobacterial action, have been identified in two caves in New South Wales (Australia). These have a characteristic morphology, which has given rise to local names likening them to crustaceans. We have studied these speleothems, and the cyanobacteria covering them, by microscopic and chemical techniques. Both calcite precipitation and aeolian sediment trapping are involved in their deposition, which is strongly controlled by environmental conditions. They can be regarded as stromatolites within currently accepted definitions of the term.

Published
1989
Full Text
View/download PDF

9. The dipole moment and molar Kerr constant of vanadyl acetylacetonate: evidence for bisacetylacetonato(oxo)vanadium–dioxan co-ordination

Author

M. J. Aroney, Hera Chio, R. J. W. Le Fèvre, Julia M. James, Raymond K. Pierens, and Keith R. Skamp

Subjects
Molar, Kerr constant, Vanadium atom, Inorganic chemistry, Vanadium, chemistry.chemical_element, General Chemistry, Dipole, chemistry.chemical_compound, chemistry, Moment (physics), Physical chemistry, Vanadyl acetylacetonate, Benzene
Abstract

Dipole moments and molar Kerr constants (for λ= 500 nm) are reported for bisacetylacetonato(oxo)vanadium [VO(acac)2] as a solute in benzene and in dioxan. The data are analysed to provide evidence for complex formation between VO(acac)2 and dioxan by co-ordination in the sixth position of the vanadium atom.

Published
1972
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results