Zobrazeno 1 - 10
of 20
pro vyhledávání: '"James P, Kercher"'
Autor:
Caleb A. LaVigne, MD, Timothy B. Griffith, MD, Zachary C. Hanson, MD, Donald D. Davis, MD, James S. Kercher, MD, Xavier A. Duralde, MD
Publikováno v:
JSES International, Vol 8, Iss 2, Pp 268-273 (2024)
Background: Accurate measurement of glenoid bone loss (GBL) is critical to preoperative planning in cases of recurrent shoulder instability. The concept of critical bone loss has been established with a value of GBL >13.5% being associated with highe
Externí odkaz:
https://doaj.org/article/1ff7b4b93d6c4096abe9c26c25ad80ab
Autor:
William P. Dubé, Jessica B. Gilman, Jochen Stutz, Abigail R. Koss, Eric J. Williams, Joel A. Thornton, Patricia K. Quinn, Steven S. Brown, Bin Yuan, James P. Kercher, Robert Wild, Brian M. Lerner, John S. Holloway, Ronald C. Cohen, Kyle J. Zarzana, Robert McLaren, Carsten Warneke, Peter Edwards, Timothy S. Bates, J. A. de Gouw, Cora J. Young, Patrick R. Veres, J. M. Roberts, L. Lee
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 573-583 (2016)
High wintertime ozone levels have been observed in the Uintah Basin, Utah, a sparsely populated rural region with intensive oil and gas operations. The reactive nitrogen budget plays an important role in tropospheric ozone formation. Measurements wer
Publikováno v:
Physical Chemistry Chemical Physics. 17:28505-28509
Energetic acetone cations decay by methane or methyl radical loss. Although the methane-loss barrier to form the ketene cation is higher and the activation entropy is lower, it has a significant branching ratio at low energies thanks to quantum tunne
Autor:
Joel A. Thornton, Glenn M. Wolfe, John S. Holloway, Patricia K. Quinn, James P. Kercher, J. Cozic, Nicholas L. Wagner, Ann M. Middlebrook, William P. Dubé, Theran P. Riedel, Becky Alexander, Steven S. Brown
Publikováno v:
Nature. 464:271-274
Chlorine atoms can profoundly affect the composition of the atmosphere. Notoriously, as chlorofluorocarbons, they were implicated in ozone depletion in the stratosphere. New observations suggest that chlorine may be a more potent force lower down in
Publikováno v:
International Journal of Mass Spectrometry. 278:26-31
The dissociation dynamics of energy-selected neopentylamine cations, (CH3)3CCH2NH2+, were studied using threshold photoelectron photoion coincidence (TPEPICO) spectroscopy in which ion time-of-flight (TOF) distributions are recorded as a function of
Publikováno v:
International Journal of Mass Spectrometry. 267:159-166
We report on the development of a new temperature controlled inlet system for the study of gas phase unimolecular reaction dynamics using threshold photoelectron photoion coincidence (TPEPICO) spectroscopy. Temperatures in the range of 220–400 K ca
Publikováno v:
The Journal of Physical Chemistry A. 111:16-26
The sequential ethene (C2H4) loss channels of energy-selected ethylphosphine ions have been studied using threshold photoelectron photoion coincidence (TPEPICO) spectroscopy in which ion time-of-flight (TOF) distributions are recorded as a function o
Autor:
Andras Bodi, James P. Kercher, Patcharica Meteesatien, Curtis Bond, Bálint Sztáray, Tomas Baer
Publikováno v:
The Journal of Physical Chemistry A. 110:13425-13433
Alkylamines (RCH2NH2, R = H, CH3, C2H5, C3H7, i-C3H7) have been investigated by dissociative photoionization by threshold photoelectron photoion coincidence spectroscopy (TPEPICO). The 0 K dissociation limits (9.754 ± 0.008, 9.721 ± 0.008, 9.702 ±
Publikováno v:
International Journal of Mass Spectrometry. :403-411
The photodissociation of 2-pentanone has been studied by threshold photoelectron photoion coincidence (TPEPICO) spectroscopy, in which ion time-of-flight (TOF) mass spectra are recorded as a function of the photon energy in the range of 9.6–12.2 eV
Autor:
Andras Bodi, James P. Kercher, D. Wurzelmann, B. Miller, Alexsandre F. Lago, Tomas Baer, Bálint Sztáray
Publikováno v:
The Journal of Physical Chemistry A. 109:1802-1809
The dissociative photoionization studies have been performed for a set of dihalomethane CH(2)XY (X,Y = Cl, Br, and I) molecules employing the threshold photoelectron photoion coincidence (TPEPICO) technique. Accurate dissociation onsets for the first