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Showing 1 to 12 of 209 entries
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Erratum to: Measuring insulin adherence among adults with type 2 diabetes.

Journal of behavioral medicine

Osborn CY, Gonzalez JS.
PMID: 27357296
J Behav Med. 2016 Aug;39(4):733. doi: 10.1007/s10865-016-9759-1.

No abstract available.

Marine Microbial Gene Abundance and Community Composition in Response to Ocean Acidification and Elevated Temperature in Two Contrasting Coastal Marine Sediments.

Frontiers in microbiology

Currie AR, Tait K, Parry H, de Francisco-Mora B, Hicks N, Osborn AM, Widdicombe S, Stahl H.
PMID: 28878754
Front Microbiol. 2017 Aug 22;8:1599. doi: 10.3389/fmicb.2017.01599. eCollection 2017.

Marine ecosystems are exposed to a range of human-induced climate stressors, in particular changing carbonate chemistry and elevated sea surface temperatures as a consequence of climate change. More research effort is needed to reduce uncertainties about the effects of...

Groundwater methane in relation to oil and gas development and shallow coal seams in the Denver-Julesburg Basin of Colorado.

Proceedings of the National Academy of Sciences of the United States of America

Sherwood OA, Rogers JD, Lackey G, Burke TL, Osborn SG, Ryan JN.
PMID: 27402747
Proc Natl Acad Sci U S A. 2016 Jul 26;113(30):8391-6. doi: 10.1073/pnas.1523267113. Epub 2016 Jul 11.

Unconventional oil and gas development has generated intense public concerns about potential impacts to groundwater quality. Specific pathways of contamination have been identified; however, overall rates of contamination remain ambiguous. We used an archive of geochemical data collected from...

VUV photoionization cross sections of HO2, H2O2, and H2CO.

The journal of physical chemistry. A

Dodson LG, Shen L, Savee JD, Eddingsaas NC, Welz O, Taatjes CA, Osborn DL, Sander SP, Okumura M.
PMID: 25621533
J Phys Chem A. 2015 Feb 26;119(8):1279-91. doi: 10.1021/jp508942a. Epub 2015 Feb 10.

The absolute vacuum ultraviolet (VUV) photoionization spectra of the hydroperoxyl radical (HO2), hydrogen peroxide (H2O2), and formaldehyde (H2CO) have been measured from their first ionization thresholds to 12.008 eV. HO2, H2O2, and H2CO were generated from the oxidation of...

Resonance Stabilization Effects on Ketone Autoxidation: Isomer-Specific Cyclic Ether and Ketohydroperoxide Formation in the Low-Temperature (400-625 K) Oxidation of Diethyl Ketone.

The journal of physical chemistry. A

Scheer AM, Eskola AJ, Osborn DL, Sheps L, Taatjes CA.
PMID: 27726367
J Phys Chem A. 2016 Nov 03;120(43):8625-8636. doi: 10.1021/acs.jpca.6b07370. Epub 2016 Oct 25.

The pulsed photolytic chlorine-initiated oxidation of diethyl ketone [DEK; (CH

Synchrotron-based double imaging photoelectron/photoion coincidence spectroscopy of radicals produced in a flow tube: OH and OD.

The Journal of chemical physics

Garcia GA, Tang X, Gil JF, Nahon L, Ward M, Batut S, Fittschen C, Taatjes CA, Osborn DL, Loison JC.
PMID: 25933756
J Chem Phys. 2015 Apr 28;142(16):164201. doi: 10.1063/1.4918634.

We present a microwave discharge flow tube coupled with a double imaging electron/ion coincidence device and vacuum ultraviolet (VUV) synchrotron radiation. The system has been applied to the study of the photoelectron spectroscopy of the well-known radicals OH and...

Low Temperature Chlorine-Initiated Oxidation of Small-Chain Methyl Esters: Quantification of Chain-Terminating HO2-Elimination Channels.

The journal of physical chemistry. A

Muller G, Scheer A, Osborn DL, Taatjes CA, Meloni G.
PMID: 26910881
J Phys Chem A. 2016 Mar 17;120(10):1677-90. doi: 10.1021/acs.jpca.6b00148. Epub 2016 Mar 08.

Cl-initiated oxidation reactions of three small-chain methyl esters, methyl propanoate (CH3CH2COOCH3; MP), methyl butanoate (CH3CH2CH2COOCH3; MB), and methyl valerate (CH3CH2CH2CH2COOCH3; MV), are studied at 1 or 8 Torr and 550 and 650 K. Products are monitored as a function...

Reaction Mechanisms on Multiwell Potential Energy Surfaces in Combustion (and Atmospheric) Chemistry.

Annual review of physical chemistry

Osborn DL.
PMID: 28301761
Annu Rev Phys Chem. 2017 May 05;68:233-260. doi: 10.1146/annurev-physchem-040215-112151. Epub 2017 Mar 15.

Chemical reactions occurring on a potential energy surface with multiple wells are ubiquitous in low-temperature combustion and in the oxidation of volatile organic compounds in Earth's atmosphere. The rich variety of structural isomerizations that compete with collisional stabilization makes...

Performance of a brief survey to assess health literacy in patients receiving hemodialysis.

Clinical kidney journal

Cavanaugh KL, Osborn CY, Tentori F, Rothman RL, Ikizler TA, Wallston KA.
PMID: 26251719
Clin Kidney J. 2015 Aug;8(4):462-8. doi: 10.1093/ckj/sfv037. Epub 2015 Jun 10.

BACKGROUND: Health literacy is associated with important outcomes among patients with kidney disease, but widely used measures of health literacy can be burdensome. In an effort to make a practical assessment available, we compared the performance of the three-item...

Cesarean section scar ectopic pregnancy: a clinical case series.

Journal of ultrasound

Rheinboldt M, Osborn D, Delproposto Z.
PMID: 26191111
J Ultrasound. 2015 Feb 21;18(2):191-5. doi: 10.1007/s40477-015-0162-5. eCollection 2015 Jun.

Cesarean scar implantation represents a rare, though growing subset of potentially life-threatening ectopic pregnancy. Because of the global increase in cesarean sections as well as the improved diagnostic abilities of transvaginal ultrasound, incidence rates have continued to rise since...

Electronic states of the quasilinear molecule propargylene (HCCCH) from negative ion photoelectron spectroscopy.

Journal of the American Chemical Society

Osborn DL, Vogelhuber KM, Wren SW, Miller EM, Lu YJ, Case AS, Sheps L, McMahon RJ, Stanton JF, Harding LB, Ruscic B, Lineberger WC.
PMID: 25009990
J Am Chem Soc. 2014 Jul 23;136(29):10361-72. doi: 10.1021/ja5039984. Epub 2014 Jul 10.

We use gas-phase negative ion photoelectron spectroscopy to study the quasilinear carbene propargylene, HCCCH, and its isotopologue DCCCD. Photodetachment from HCCCH– affords the X̃(3B) ground state of HCCCH and its ã(1A), b̃ (1B), d̃(1A2), and B̃(3A2) excited states. Extended,...

Cyclic versus linear isomers produced by reaction of the methylidyne radical (CH) with small unsaturated hydrocarbons.

Journal of the American Chemical Society

Goulay F, Trevitt AJ, Meloni G, Selby TM, Osborn DL, Taatjes CA, Vereecken L, Leone SR.
PMID: 19123915
J Am Chem Soc. 2009 Jan 28;131(3):993-1005. doi: 10.1021/ja804200v.

The reactions of the methylidyne radical (CH) with ethylene, acetylene, allene, and methylacetylene are studied at room temperature using tunable vacuum ultraviolet (VUV) photoionization and time-resolved mass spectrometry. The CH radicals are prepared by 248 nm multiphoton photolysis of...

Showing 1 to 12 of 209 entries