Results 41 to 50 of about 950,858 (353)

Isotope effects and possible pairing mechanism in optimally doped cuprate superconductors

, 2002
We have studied the oxygen-isotope effects on T_{c} and in-plane penetration depth \lambda_{ab}(0) in an optimally doped 3-layer cuprate Bi_{1.6}Pb_{0.4}Sr_{2}Ca_{2}Cu_{3}O_{10+y} (T_{c} \sim 107 K).
A. Bill, A. Buzdin, A.S. Alexandrov, A.S. Alexandrov, B. Batlogg, B. Renker, D.E. Morris, Donald E. Morris, G.M. Zhao, G.M. Zhao, G.M. Zhao, G.M. Zhao, Guo-meng Zhao, H.J. Bornemann, J. Bonca, J. Hofer, J.P. Carbotte, J.P. Franck, J.Y.T. Wei, M.A. Quijada, M.K. Crawford, M.K. Crawford, N. Miyakawa, R.J. McQueeney, R.S. Gonnelli, V.Z. Kresin, Vidula Kirtikar, Y.J. Uemura   +27 more
core   +1 more source

Development of Liquid Target System Based on 14 MeV Cyclotron Isotope 18F Production

Journal of Isotopes
Based on the excellent radionuclide properties of 18F，amino acids labeled with radioactive nuclide 18F have shown its unique advantages in brain tumor imaging.
Fei WANG, Li LING, Guofang SONG, Xianlu JIA, Guang YANG, Lijie ZHAO, Peng HUANG, Shigang HOU, He ZHANG, Pengfei ZHU, Jie LIU   +10 more
doaj   +1 more source

Isotope separation using metallic vapor lasers [PDF]

, 1977
The isotope U235 is separated from a gasified isotope mixture of U235 and U238 by selectively exciting the former from the ground state utilizing resonant absorption of radiation from precisely tuned lasers.
Chen, C. J., Harstad, K. G., Russell, G. R.   +2 more
core   +1 more source

Boron isotope effect in single crystals of ErNi$_2$B$_2$C superconductor

, 2012
The influence of local moment magnetism on the boron isotope effect of T$_c$ was studied on single crystals of ErNi$_2$B$_2$C. Values of the partial isotope effect exponent of $\alpha_B$=0.10$\pm$0.02 and $\alpha_B$=0.10$\pm$0.04 were obtained based on ...
Abrikosov A, Bill A, Halyna Hodovanets, Paul C. Canfield, Sergey L. Bud’ko, Sheng Ran   +5 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Simplified bacterial denitrification method using Stenotrophomonas nitritireducens for nitrite dual isotope analysis in low-concentration environmental samples

Frontiers in Environmental Science
This study presents a simplified and optimized bacterial denitrification method using Stenotrophomonas nitritireducens for precise nitrite isotope analysis in low-concentration environmental samples.
Sushmita Deb, Dominika Lewicka-Szczebak
doaj   +1 more source

Analytical modelling of stable isotope fractionation of volatile organic compounds in the unsaturated zone

, 2011
Analytical models were developed that simulate stable isotope ratios of volatile organic compounds (VOCs) near a point source contamination in the unsaturated zone. The models describe diffusive transport of VOCs, biodegradation and source ageing.
Abriola, Baehr, Bouchard, Bouchard, Bouchard, Bouchard, Broholm, Cerling, Christophersen, Clark, Conant, Craig, Daniel Bouchard, Daniel Hunkeler, Davis, Davis, Elsner, Fabien Cornaton, Falta, Franzmann, Gaganis, Grathwohl, Harrington, Hers, Hoff, Hohener, Hohener, Hunkeler, Hunkeler, Jin, Jost, Jury, Karapanagioti, Kiss, Kuder, Lahvis, Meckenstock, Millington, Moldrup, Ostendorf, Parker, Pasteris, Patrick Höhener, Schmidt, Schwarzenbach, Schüth, Sherwood Lollar, Slater, Smith, Van de Steene, Wang, Werner, Werner   +52 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Isotope Shift Measurements of Stable and Short-Lived Lithium Isotopes for Nuclear Charge Radii Determination [PDF]

, 2010
Changes in the mean-square nuclear charge radii along the lithium isotopic chain were determined using a combination of precise isotope shift measurements and theoretical atomic structure calculations.
A. Dax, A. Wojtaszek, B. A. Bushaw, B. A. Bushaw, C. D. P. Levy, C. Zimmermann, G. A. Noble, G. Ewald, G. W. F. Drake, G. W. F. Drake, G. W. F. Drake, H.-J. Kluge, J. Behr, J. Dilling, J. Lassen, J. Walls, K. Pachucki, L. I. Schiff, M. Dombsky, M. Pearson, M. Puchalski, P. Bricault, R. Sánchez, S. Götte, Th. Kühl, W. E. Otten, W. H. Press, W. Nörtershäuser, Z.-C. Yan   +28 more
core   +3 more sources

Isotopic Signatures

, 2018
© 2018 Elsevier Inc. All rights reserved. Isotopes record human influence on the Earth System, providing evidence for the Anthropocene. Lead and sulfur isotopes detail pollution histories going back millennia. Carbon and nitrogen isotopes show substantial change since the Industrial Revolution, and especially since the 1950s, related to increased ...
Dean, J.R., Leng, M.J., Mackay, A.W.
openaire   +3 more sources