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2,905 results on '"Williams, Jack"'

153. Paramagnetic limiting of the upper critical field of the layered organic superconductor $\kappa -(BEDT-TTF)_2Cu(SCN)_2$

Author

Zuo, F., Brooks, J. S., McKenzie, Ross H., Schlueter, J. A., and Williams, Jack M.

Subjects
Condensed Matter - Superconductivity
Abstract

We report detailed measurements of the interlayer magnetoresistance of the layered organic superconductor $\kappa -(BEDT-TTF)_2Cu(SCN)_2$ for temperatures down to 0.5 K and fields up to 30 tesla. The upper critical field is determined from the resistive transition for a wide range of temperatures and field directions. For magnetic fields parallel to the layers, the upper critical field increases approximately linearly with decreasing temperature. The upper critical field at low temperatures is compared to the Pauli paramagnetic limit, at which singlet superconductivity should be destroyed by the Zeeman splitting of the electron spins. The measured value is comparable to a value for the paramagnetic limit calculated from thermodynamic quantities but exceeds the limit calculated from BCS theory. The angular dependence of the upper critical field shows a cusp-like feature for fields close to the layers, consistent with decoupled layers., Comment: 16 pages 5 figures

Published
1999
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161. A modelling study of the impact of scaling up of HCV case finding and treatment for people who inject drugs in English region of Bristol and Severn

Author

Ward, Zoe, primary, Fraser, Hannah, additional, Trickey, Adam, additional, Kesten, Jo, additional, Gibson, Andy, additional, Reid, Leila, additional, Gordon, Fiona, additional, Miners, Alec, additional, Williams, Jack, additional, Hickman, Matthew, additional, Foster, Graham, additional, Desai, Monica, additional, Mandal, Sema, additional, Coughlan, Laura, additional, Simmons, Ruth, additional, Harris, Ross, additional, and Vickerman, Peter, additional

Published
2023
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163. Establishing Core Outcome Domains in Hemodialysis: Report of the Standardized Outcomes in Nephrology–Hemodialysis (SONG-HD) Consensus Workshop

Author

Collins, Allan, Narva, Andrew, Sautenet, Benedicte, Powell, Billy, Hurd, Brenda, Barrett, Brendan, Schiller, Brigitte, Culleton, Bruce, Hawley, Carmel, Pollock, Carol, Lok, Charmaine, Wanner, Christoph, Chan, Christopher, Weiner, Daniel, Harris, David, Johnson, David, Rosenbloom, David, Rifkin, Dena, Bookman, Deshia, Brown, Edwina, Bavlovlenkov, Elena, Tentori, Francesca, Williams, Jack, Schell, Jane, Flythe, Jennifer, Ix, Joachim, Raimann, Jochen, Andress, Joel, Agar, John, Daugirdas, John, Gill, John, Kusek, John, Polkinghorne, Kevan, Abbott, Kevin, Usyvat, Len, Krishnan, Mahesh, Tonelli, Marcello, Marshall, Mark, Gallagher, Martin, Germain, Michael, Walsh, Michael, Zappitelli, Michael, Josephson, Michelle, Burrows, Nilka Rios, Houston, Orlando, Kerr, Peter, Kotanko, Peter, Roy-Chaudhury, Prabir, Morton, Rachael, Mehrotra, Raj, Dorpel, Rene van den, Suri, Rita, Wald, Ron, Apata, Ronke, Gibson, Shalia, Evered, Sharrilyn, Fadem, Stephen, McDonald, Stephen, Holt, Steve, Kee, Terence, Manns, Braden, Hemmelgarn, Brenda, Wheeler, David, Harris, Tess, Winkelmayer, Wolfgang, Tong, Allison, O'Donoghue, Donal, Tam-Tham, Helen, Shen, Jenny, Pinter, Jule, Larkins, Nicholas, Evangelidis, Nicole, Van Den Dorpel, Rene, Parks, Reva, Youssouf, Sajeda, Mandayam, Sreedhar, Wheeler, David C., Tugwell, Peter, Crowe, Sally, Van Biesen, Wim, Winkelmayer, Wolfgang C., Shen, Jenny I., Ju, Angela, and Craig, Jonathan C.

Published
2017
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164. Late Quaternary activity of the NW Cardrona Fault, Otago, New Zealand.

Author

van den Berg, Ella J., Williams, Jack N., Stirling, Mark W., Barrell, David J. A., Griffin, Jonathan D., Litchfield, Nicola J., and Wang, Ningsheng

Abstract

We use new paleoseismic data and lidar to reassess late Quaternary activity of the NW (northwest) Cardrona Fault, a ∼60 km long range-bounding fault in Otago. Paleoseismic investigations of the NW Cardrona Fault were conducted in the 1980s, but findings were limited by a paucity of materials suitable for dating. Here, re-exposure and re-assessment of a 1980s trench at Macdonalds Creek provide stratigraphic evidence for two surface rupturing earthquakes on the NW Cardrona Fault. Through Optically Stimulated Luminescence dating and OxCal modelling, we estimate these earthquakes occurred at (mean ± 2 standard deviations, σ) 20.5 ± 7.8 ka and 8.7 ± 6.6 ka. The timings of these earthquakes are consistent with those proposed from re-interpretation of another 1980s trench on the NW Cardrona Fault in the Kawarau River valley, ∼25 km farther south. The slip rate and recurrence interval derived from the Macdonalds Creek trench data are 0.13 ± 0.05 mm/yr and 11,800 ± 5100 years (2σ error) respectively. These estimates imply lower slip rates and longer earthquake recurrence intervals on the NW Cardrona Fault than previously assessed. [ABSTRACT FROM AUTHOR]

Published
2023
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166. Executive summary, PACFISH field reviews, August - November 1995 /

Author

Brown, Lew, Crouse, Mike, House, Bob, Wiley, Ron, Williams, Jack Edward, U.S. Fish and Wildlife Service. Office of Biological Services, U.S. Fish and Wildlife Service. Western Energy Land Use Team, United States. Bureau of Land Management, United States. Forest Service, United States. National Marine Fisheries Service, Bureau of Land Management (archive.org), Brown, Lew, Crouse, Mike, House, Bob, Wiley, Ron, Williams, Jack Edward, U.S. Fish and Wildlife Service. Office of Biological Services, U.S. Fish and Wildlife Service. Western Energy Land Use Team, United States. Bureau of Land Management, United States. Forest Service, and United States. National Marine Fisheries Service

Subjects
Anadromous fishes, Environmental aspects, Fish habitat improvement, Forest policy, Management, Public lands, Riparian areas, Riparian ecology, United States, West, West (U.S.)
Published
1996

169. Bring back the natives : final submission

Author

Williams, Cindy Deacon, Williams, Jack Edward, United States. Bureau of Land Management, United States. Forest Service, National Fish and Wildlife Foundation (U.S.), Bureau of Land Management (archive.org), Williams, Cindy Deacon, Williams, Jack Edward, United States. Bureau of Land Management, United States. Forest Service, and National Fish and Wildlife Foundation (U.S.)

Subjects
Fish habitat improvement, Rare fishes, Riparian ecology, United States, Wildlife habitat improvement
Published
1992

172. Characterisation of dominant-negative GH receptor variants reveals a potential therapeutic target for short stature

Author

Andrews, Afiya, primary, Cottrell, Emily, additional, Maharaj, Avinaash, additional, Ladha, Tasneem, additional, Williams, Jack, additional, Schilbach, Katharina, additional, Kaisinger, Lena R, additional, Perry, John R B, additional, Metherell, Louise A, additional, McCormick, Peter J, additional, and Storr, Helen L, additional

Published
2023
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173. Special status fishes habitat management /

Author

Williams, Jack Edward, United States. Bureau of Land Management, Bureau of Land Management (archive.org), Williams, Jack Edward, and United States. Bureau of Land Management

Subjects
Fish habitat improvement, Fishery management, Habitat, Rare fishes, United States
Published
1991

174. Elevated sphingosine-1-phosphate lyase leads to increased metabolism and reduced survival in adrenocortical carcinoma

Author

0000-0002-1289-6671, 0000-0002-0530-3524, 0000-0001-6360-7246, Williams, Jack L., Smith, Chris, Hall, Charlotte, Khaled, Zakaa, Maharaj, Avinaash, Kwong, Ruth, Pittaway, James, Casas, Josefina, Parvanta, Laila, Abdel-Aziz, Tarek Ezzat, Palazzo, Fausto, Chung, Teng-Teng, Guasti, Leonardo, Metherell, Lou, Prasad, Rathi, 0000-0002-1289-6671, 0000-0002-0530-3524, 0000-0001-6360-7246, Williams, Jack L., Smith, Chris, Hall, Charlotte, Khaled, Zakaa, Maharaj, Avinaash, Kwong, Ruth, Pittaway, James, Casas, Josefina, Parvanta, Laila, Abdel-Aziz, Tarek Ezzat, Palazzo, Fausto, Chung, Teng-Teng, Guasti, Leonardo, Metherell, Lou, and Prasad, Rathi

Abstract

Adrenocortical carcinomas (ACCs) are invasive tumours arising in the adrenal cortex, and steroidogenic tumours are associated with worse prognostic outcomes. Loss-of-function mutations in sphingosine-1-phosphate lyase (SGPL1) cause primary adrenal insufficiency and as a key degradative enzyme in the sphingolipid pathway, SGPL1 also influences the balance of pro-proliferative and pro-apoptotic sphingolipids. We, therefore, hypothesized increased SGPL1 may be linked to increased disease severity in ACC.

Published
2023

190. Evaluating EPflex MRline Guidewire for Endovascular Interventions Guided by MRI at 3T vs. X-ray Fluoroscopy

Author

Williams, Jack Clark

Subjects
Biomedical engineering, Endovascular, Interventional Radiology, Magnetic Resonance Imaging, X-ray Fluoroscopy
Abstract

This project sought to evaluate the efficacy of using the EPflex MRline guidewire for endovascular treatment guided by real-time Magnetic Resonance Imaging (MRI). MRI theoretically has numerous advantages over x-ray, the current clinical standard imaging modality for endovascular procedures. The most profound advantage of MRI is the ability to acquire physiological functional information, via perfusion and diffusion measures, for better intervention planning before and during the procedure. The EPflex guidewire was selectedbecause of its ability to perform in an MRI and x-ray fluoroscopy environment, allowing for relevant and useful comparisons of the guiding imaging modality. An abdominal aorta phantom was used to assess the ability of experienced and inexperienced operators to successfullynavigate the wire under each imaging modality. It was found that x-ray guidance provided statistically faster and more successful navigation attempts than MRI guidance; however, more clinical tests need to be performed in order to assess the clinical significance of these results.This study represents an important step in the direction of developing safer and more effective imaging systems for guiding endovascular procedures.

Published
2019

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