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Page 1
The atmosphere of Pluto as observed by New Horizons.
Gladstone GR, Stern SA, Ennico K, Olkin CB, Weaver HA, Young LA, Summers ME, Strobel DF, Hinson DP, Kammer JA, Parker AH, Steffl AJ, Linscott IR, Parker JW, Cheng AF, Slater DC, Versteeg MH, Greathouse TK, Retherford KD, Throop H, Cunningham NJ, Woods WW, Singer KN, Tsang CC, Schindhelm R, Lisse CM, Wong ML, Yung YL, Zhu X, Curdt W, Lavvas P, Young EF, Tyler GL; New Horizons Science Team. Gladstone GR, et al. Science. 2016 Mar 18;351(6279):aad8866. doi: 10.1126/science.aad8866. Science. 2016. PMID: 26989258 Free article.
Molecular nitrogen (N2) dominates the atmosphere (at altitudes of less than 1800 kilometers or so), whereas methane (CH4), acetylene (C2H2), ethylene (C2H4), and ethane (C2H6) are abundant minor species and likely feed the production of an extensive haze that encompasses P …
Molecular nitrogen (N2) dominates the atmosphere (at altitudes of less than 1800 kilometers or so), whereas methane (CH4), acetylene (C2H2), …
Plasmonic Sensing Studies of a Gas-Phase Cystic Fibrosis Marker in Moisture Laden Air.
Sun L, Conrad D, Hall DA, Benkstein KD, Semancik S, Zaghloul ME. Sun L, et al. Sensors (Basel). 2021 May 29;21(11):3776. doi: 10.3390/s21113776. Sensors (Basel). 2021. PMID: 34072374 Free PMC article.
Among the numerous gas-phase biomarkers that can be used to assess the lung health of CF patients, acetaldehyde was selected for this investigation. Previous research with diverse types of sensing platforms, with materials ranging from metal oxides to 2-D materials, detect …
Among the numerous gas-phase biomarkers that can be used to assess the lung health of CF patients, acetaldehyde was selected for this …
Ethanol Conversion to Butadiene over Isolated Zinc and Yttrium Sites Grafted onto Dealuminated Beta Zeolite.
Qi L, Zhang Y, Conrad MA, Russell CK, Miller J, Bell AT. Qi L, et al. J Am Chem Soc. 2020 Aug 26;142(34):14674-14687. doi: 10.1021/jacs.0c06906. Epub 2020 Aug 12. J Am Chem Soc. 2020. PMID: 32787241
Zn-DeAlBEA was found to be highly active for ethanol dehydrogenation to acetaldehyde and exhibited low activity for 1,3-butadiene generation. ...The formation of 1,3-butadine over Y-DeAlBEA and Zn-DeAlBEA does not occur via aldol condensation of acetaldehyde but, ra …
Zn-DeAlBEA was found to be highly active for ethanol dehydrogenation to acetaldehyde and exhibited low activity for 1,3-butadiene gen …
Parent volatiles in comet 9P/Tempel 1: before and after impact.
Mumma MJ, DiSanti MA, Magee-Sauer K, Bonev BP, Villanueva GL, Kawakita H, Dello Russo N, Gibb EL, Blake GA, Lyke JE, Campbell RD, Aycock J, Conrad A, Hill GM. Mumma MJ, et al. Science. 2005 Oct 14;310(5746):270-4. doi: 10.1126/science.1119337. Epub 2005 Sep 15. Science. 2005. PMID: 16166477 Free article.
We quantified eight parent volatiles (H2O, C2H6, HCN, CO, CH3OH, H2CO, C2H2, and CH4) in the Jupiter-family comet Tempel 1 using high-dispersion infrared spectroscopy in the wavelength range 2.8 to 5.0 micrometers. The abundance ratio for ethane was significantly higher af …
We quantified eight parent volatiles (H2O, C2H6, HCN, CO, CH3OH, H2CO, C2H2, and CH4) in the Jupiter-family comet Tempel 1 using high-disper …
Effect of 2-bromo-ethane sulfonate, molybdate and chloroform on acetate consumption by methanogenic and sulfate-reducing populations in freshwater sediment.
Scholten JC, Conrad R, Stams AJ. Scholten JC, et al. FEMS Microbiol Ecol. 2000 Apr 1;32(1):35-42. doi: 10.1111/j.1574-6941.2000.tb00696.x. FEMS Microbiol Ecol. 2000. PMID: 10779617 Free article.
Acetate, propionate and valerate accumulated only when both processes were inhibited by the combined addition of 2-bromo-ethane sulfonate and molybdate. The relative amounts of acetate, propionate and valerate were 93, 6 and 1 mol%, respectively. ...
Acetate, propionate and valerate accumulated only when both processes were inhibited by the combined addition of 2-bromo-ethane sulfo …
Identification of the acetaldehyde oxide Criegee intermediate reaction network in the ozone-assisted low-temperature oxidation of trans-2-butene.
Conrad AR, Hansen N, Jasper AW, Thomason NK, Hidaldo-Rodrigues L, Treshock SP, Popolan-Vaida DM. Conrad AR, et al. Phys Chem Chem Phys. 2021 Oct 27;23(41):23554-23566. doi: 10.1039/d1cp03126k. Phys Chem Chem Phys. 2021. PMID: 34651147
The reactivity of CIs is known to strongly depend on their structure. The reaction network of the second simplest CI, acetaldehyde oxide (CH(3)CHOO), is investigated in this work in an atmospheric pressure jet-stirred reactor (JSR) during the ozonolysis of trans-2-butene t …
The reactivity of CIs is known to strongly depend on their structure. The reaction network of the second simplest CI, acetaldehyde ox …
Identification and characterization of high methane-emitting abandoned oil and gas wells.
Kang M, Christian S, Celia MA, Mauzerall DL, Bill M, Miller AR, Chen Y, Conrad ME, Darrah TH, Jackson RB. Kang M, et al. Proc Natl Acad Sci U S A. 2016 Nov 29;113(48):13636-13641. doi: 10.1073/pnas.1605913113. Epub 2016 Nov 14. Proc Natl Acad Sci U S A. 2016. PMID: 27849603 Free PMC article.
However, identifying high emitters remains a challenge. We couple 163 well measurements of methane flow rates; ethane, propane, and n-butane concentrations; isotopes of methane; and noble gas concentrations from 88 wells in Pennsylvania with synthesized data from historica …
However, identifying high emitters remains a challenge. We couple 163 well measurements of methane flow rates; ethane, propane, and n …
Acetoclastic and hydrogenotrophic methane production and methanogenic populations in an acidic West-Siberian peat bog.
Kotsyurbenko OR, Chin KJ, Glagolev MV, Stubner S, Simankova MV, Nozhevnikova AN, Conrad R. Kotsyurbenko OR, et al. Environ Microbiol. 2004 Nov;6(11):1159-73. doi: 10.1111/j.1462-2920.2004.00634.x. Environ Microbiol. 2004. PMID: 15479249
The anaerobic microbial community at 30-50 cm below the water table produced CH4 with optimum activity at 20-25 degrees C and pH 5.0-5.5 respectively. Inhibition of methanogenesis with 2-bromo-ethane sulphonate showed that acetate, phenyl acetate, phenyl propionate and cap …
The anaerobic microbial community at 30-50 cm below the water table produced CH4 with optimum activity at 20-25 degrees C and pH 5.0-5.5 res …