Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Andrew M. Crawford"'
Autor:
Simon J. George, Ben Huntsman, Ingrid J. Pickering, Graham N. George, Cheyenne D. Kiani, Olena Ponomarenko, Monica Y. Weng, Andrew M. Crawford
Publikováno v:
J Synchrotron Radiat
Recent improvements in both X-ray detectors and readout speeds have led to a substantial increase in the volume of X-ray fluorescence data being produced at synchrotron facilities. This in turn results in increased challenges associated with processi
Publikováno v:
Journal of Synchrotron Radiation. 26:497-503
The X-ray fluorescence data from X-ray microprobe and nanoprobe measurements must be fitted to obtain reliable elemental maps. The most common approach in many fitting programs is to initially remove a per-pixel baseline. Using X-ray fluorescence dat
Autor:
Michael Kelly, Andrew M. Crawford, Huishu Hou, Nicole J. Sylvain, Mark J. Hackett, Ingrid J. Pickering, Graham N. George, M. Jake Pushie
Publikováno v:
Journal of Synchrotron Radiation. 25:1780-1789
Synchrotron X-ray fluorescence imaging enables visualization and quantification of microscopic distributions of elements. This versatile technique has matured to the point where it is used in a wide range of research fields. The method can be used to
Autor:
Cassandra M. Wilkinson, Graham N. George, Helen Nichol, Kristen Dietrich, Andrew M. Crawford, Frederick Colbourne, Colby A. Nadeau
Publikováno v:
Translational Stroke Research
Intracerebral hemorrhage (ICH) causes blood-brain barrier (BBB) damage along with altered element levels in the brain. BBB permeability was quantified at 3, 7, and 14 days with Evans Blue dye after collagenase-induced ICH in rat. At peak permeability
Autor:
Mark J. Hackett, Michael Kelly, Andrew M. Crawford, Huishu Hou, Graham N. George, M. Jake Pushie, Nicole J. Sylvain
Publikováno v:
ACS Chemical Neuroscience. 9:886-893
Stroke exacts a heavy financial and economic burden, is a leading cause of death, and is the leading cause of long-term disability in those who survive. The penumbra surrounds the ischemic core of the stroke lesion and is composed of cells that are s
Autor:
Ingrid J. Pickering, Graham N. George, Susan Nehzati, Tracy C. MacDonald, Patrick H. Krone, Natalia V. Dolgova, Kelly L. Summers, Andrew M. Crawford
Publikováno v:
Metallomics : integrated biometal science. 11(3)
Mercury is one of the most toxic elements threatening the biosphere, with levels steadily rising due to both natural and human activities. Selenium is an essential micronutrient, required for normal development and functioning of many organisms. Whil
Autor:
Claire E. Kozemchak, Raul Barrea, Tsz Kwan Yim, Aniruddha Deb, Cheng-Jun Sun, Andrew M. Crawford, Lubomír Dostál, James E. Penner-Hahn, Dale Brewe, Patrick Kurecka
Publikováno v:
Journal of Synchrotron Radiation. 23:901-908
An X-ray fluorescence flow cytometer that can determine the total metal content of single cells has been developed. Capillary action or pressure was used to load cells into hydrophilic or hydrophobic capillaries, respectively. Once loaded, the cells
Autor:
Andrew P. Grosvenor, Jeremiah C. Beam, Kebbi A. Hughes, Arthur Situm, Andrew M. Crawford, John Rowson
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 244:146992
Trace U species (i.e., ppm) found in the combined solid and liquid residues from uranium milling operations, known as tailings, are of scientific interest as tailings management facilities (TMFs) are designed to keep U species and other potentially h
Autor:
Andrew M. Crawford, Kebbi A. Hughes, John Rowson, Jeremiah C. Beam, Andrew P. Grosvenor, Arthur Situm, Joseph Essilfie-Dughan
Publikováno v:
Applied Geochemistry. 112:104459
Solid mine/mill waste, known as tailings, often contain trace chemical species of interest that cannot be easily identified using bulk analysis methods. Existing methodologies for the identification of trace chemical species within heterogeneous mate
Autor:
Ingrid J. Pickering, Susan Nehzati, Sanjukta Choudhury, Graham N. George, Natalia V. Dolgova, Nathan R Regnier, Andrew M. Crawford, Olena Ponomarenko, Tracy C. MacDonald
Publikováno v:
Biochimica et biophysica acta. General subjects. 1862(11)
Background Selenium is an essential element with a rich and varied chemistry in living organisms. It plays a variety of important roles ranging from being essential in enzymes that are critical for redox homeostasis to acting as a deterrent for herbi