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Using observational methods to research the student experience

discipline specific instruction (e.g., engineering curriculum, social science teachers, geology pedagogy)

Cotton DRE, Cotton PA.
GSID: nXM_oicrvkwJ
DRE Cotton, A Stokes, PA Cotton - Journal of Geography in Higher …, 2010 - Taylor & Francis

… that observational methods should be used more widely in pedagogic research. … and other social scientists, primarily through the development of ethnography as an approach to … under study (an example would be a lecturer doing research on...

Bulk Immiscibility at the Edge of the Nanoscale.

ACS nano

Chatzidakis M, Prabhudev S, Saidi P, Chiang CN, Hoyt JJ, Botton GA.
PMID: 29072899
ACS Nano. 2017 Nov 28;11(11):10984-10991. doi: 10.1021/acsnano.7b04888. Epub 2017 Oct 26.

In the quest to identify more effective catalyst nanoparticles for many industrially important applications, the Au-Pt system has gathered considerable attention. Despite considerable effort the interplay between phase equilibrium behavior and surface segregation in Au-Pt nanoparticles is still poorly...

Three-Dimensional Quantum Confinement of Charge Carriers in Self-Organized AlGaN Nanowires: A Viable Route to Electrically Injected Deep Ultraviolet Lasers.

Nano letters

Zhao S, Woo SY, Bugnet M, Liu X, Kang J, Botton GA, Mi Z.
PMID: 26539880
Nano Lett. 2015 Dec 09;15(12):7801-7. doi: 10.1021/acs.nanolett.5b02133. Epub 2015 Nov 16.

We report on the molecular beam epitaxial growth and structural characterization of self-organized AlGaN nanowire arrays on Si substrate with high luminescence efficiency emission in the deep ultraviolet (UV) wavelength range. It is found that, with increasing Al concentration,...

Disruptions of Host Immunity and Inflammation by Giardia Duodenalis: Potential Consequences for Co-Infections in the Gastro-Intestinal Tract.

Pathogens (Basel, Switzerland)

Cotton JA, Amat CB, Buret AG.
PMID: 26569316
Pathogens. 2015 Nov 10;4(4):764-92. doi: 10.3390/pathogens4040764.

Giardia duodenalis (syn. G. intestinalis, or G. lamblia) is a leading cause of waterborne diarrheal disease that infects hundreds of millions of people annually. Research on Giardia has greatly expanded within the last few years, and our understanding of...

Spatially resolved surface valence gradient and structural transformation of lithium transition metal oxides in lithium-ion batteries.

Physical chemistry chemical physics : PCCP

Liu H, Bugnet M, Tessaro MZ, Harris KJ, Dunham MJ, Jiang M, Goward GR, Botton GA.
PMID: 27711529
Phys Chem Chem Phys. 2016 Oct 26;18(42):29064-29075. doi: 10.1039/c6cp05262b.

Layered lithium transition metal oxides are one of the most important types of cathode materials in lithium-ion batteries (LIBs) that possess high capacity and relatively low cost. Nevertheless, these layered cathode materials suffer structural changes during electrochemical cycling that...

Ab initio structural and spectroscopic study of HPS(x) and HSP(x) (x = 0,+1,-1) in the gas phase.

The Journal of chemical physics

Ben Yaghlane S, Cotton CE, Francisco JS, Linguerri R, Hochlaf M.
PMID: 24206304
J Chem Phys. 2013 Nov 07;139(17):174313. doi: 10.1063/1.4827520.

Accurate ab initio computations of structural and spectroscopic parameters for the HPS/HSP molecules and corresponding cations and anions have been performed. For the electronic structure computations, standard and explicitly correlated coupled cluster techniques in conjunction with large basis sets...

Problems and solutions in delivering global surgery in the 21st century.

The British journal of surgery

McDermott FD, Kelly ME, Warwick A, Arulampalam T, Brooks AJ, Gaarder T, Cotton BA, Winter DC.
PMID: 26663000
Br J Surg. 2016 Feb;103(3):165-9. doi: 10.1002/bjs.9961. Epub 2015 Dec 14.

BACKGROUND: Surgery has had low priority in global health planning, so the delivery of surgical care in low- and middle-income countries is often poorly resourced. A recent Lancet Commission on Global Surgery has highlighted the need for change.METHODS: A...

Oxidative scission of a Mo-Mo quadruple bond.

Inorganic chemistry

Cotton FA, Murillo CA, Zhou HC.
PMID: 11196863
Inorg Chem. 2000 Jul 24;39(15):3261-4. doi: 10.1021/ic000092t.

Two compounds containing the cations Mo2(DPhIP)4n+, n = 1 or 2 and DPhIP = the anion of 2,6-diphenyliminopiperidine, have been obtained by oxidation of the quadruply-bonded Mo2(DPhIP)4 species. The first oxidation process conserves the structure but results in a...

Linear trichromium complexes with the anion of 2,6-di(phenylimino)piperidine.

Inorganic chemistry

Clérac R, Cotton FA, Daniels LM, Dunbar KR, Murillo CA, Zhou HC.
PMID: 11196882
Inorg Chem. 2000 Jul 24;39(15):3414-7. doi: 10.1021/ic0001964.

The anion of 2,6-di(phenylimino)piperidine (DPhIP) has been found to support linear chains of three metal atoms. Three new compounds, [Cr3(DPhIP)4Cl]Cl.(1).5CH2Cl2.0.5H2O (1.1.5CH2Cl2.0.5H2O), [Cr3(DPhIP)4(CH3CN)]- (PF6)2.H2O.4CH3CN (2.H2O.4CH3CN), and [Cr3(DPhIP)4(F)(CH3CN)](BF4)2.5CH3CN (3.5CH3CN), have been synthesized and characterized by X-ray crystallography. Compound 1 has a...

Connecting pairs of dimetal units to form molecular loops.

Inorganic chemistry

Cotton FA, Lin C, Murillo CA.
PMID: 11209603
Inorg Chem. 2001 Jan 29;40(3):472-7. doi: 10.1021/ic0010151.

Four compounds consisting of molecular loops formed from two quadruply bonded Mo2(DAniF)2 (DAniF = N,N'-di-p-anisylformamidinate) units linked by two dicarboxylate anions have been prepared in high purity and essentially quantitative yields. These compounds have been characterized by crystallography and...

A polymeric chain in which mu(2),eta(2):eta(2)-ethene symmetrically bridges tetra(trifluoroacetato) dirhodium molecules.

Journal of the American Chemical Society

Cotton FA, Dikarev EV, Petrukhina MA, Taylor RE.
PMID: 11403629
J Am Chem Soc. 2001 Jun 20;123(24):5831-2. doi: 10.1021/ja0160750.

No abstract available.

The lengths of molybdenum to molybdenum quadruple bonds: correlations, explanations, and corrections.

Inorganic chemistry

Cotton FA, Daniels LM, Hillard EA, Murillo CA.
PMID: 11978114
Inorg Chem. 2002 May 06;41(9):2466-70. doi: 10.1021/ic025508c.

A systematic search of the Cambridge Crystallographic Database has yielded structures of 467 molecules containing, or reported to contain, a molybdenum to molybdenum quadruple bond, Mo[quadruple bond]Mo. We have arranged these data as a histogram, in order to determine...

Showing 1 to 12 of 383 entries