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Showing 1 to 12 of 192 entries
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Comparison of Surface Water Quality and Yields from Organically and Conventionally Produced Sweet Corn Plots with Conservation and Conventional Tillage.

Journal of environmental quality

Edgell J, Osmond DL, Line DE, Hoyt GD, Grossman JM, Larsen EM.
PMID: 26641338
J Environ Qual. 2015 Nov;44(6):1861-70. doi: 10.2134/jeq2015.02.0074.

Organic agricultural systems are often assumed to be more sustainable than conventional farming, yet there has been little work comparing surface water quality from organic and conventional production, especially under the same cropping sequence. Our objective was to compare...

Intergeneric hybrids between Brassica napus and Orychophragmus violaceus containing traits of agronomic importance for oilseed rape breeding.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik

Hu Q, Hansen N, Laursen J, Dixelius C, Andersen B.
PMID: 12582907
Theor Appl Genet. 2002 Nov;105(6):834-840. doi: 10.1007/s00122-002-1017-y. Epub 2002 Jul 18.

Protoplast fusions between Brassica napus and Orychophragmus violaceus for transfer of valuable traits to oilseed rape resulted in 257 somatic hybrid plants. Hybridity was confirmed by morphological, cytological and molecular means. Symmetric fusions gave rise to 131 plants. Fifty...

Synthesis of a Triazatriangulenium Salt.

Angewandte Chemie (International ed. in English)

Laursen BW, Krebs FC.
PMID: 11091379
Angew Chem Int Ed Engl. 2000 Oct 02;39(19):3432-3434. doi: 10.1002/1521-3773(20001002)39:19<3432::aid-anie3432>3.0.co;2-s.

No abstract available.

Preparation of cyclobis(paraquat-p-phenylene)-based [2]rotaxanes without flexible glycol chains.

Angewandte Chemie (International ed. in English)

Nygaard S, Laursen BW, Hansen TS, Bond AD, Flood AH, Jeppesen JO.
PMID: 17628474
Angew Chem Int Ed Engl. 2007;46(32):6093-7. doi: 10.1002/anie.200701722.

No abstract available.

Post-reinforcement pauses and response rate of monkeys on a two-hand fixed-ratio schedule.

Journal of the experimental analysis of behavior

Laursen AM.
PMID: 16811572
J Exp Anal Behav. 1972 Jan;17(1):85-94. doi: 10.1901/jeab.1972.17-85.

Fixed-ratio behavior of monkeys was analyzed separately for two hands. While one hand responded on the fixed-ratio schedule the other performed a holding response and the function of the hands changed in alternate ratio runs. After performance was stable...

Evidence of strong hydration and significant tilt of amphiphilic [2]rotaxane molecules in Langmuir films studied by synchrotron X-ray reflectivity.

The journal of physical chemistry. B

Nørgaard K, Jeppesen JO, Laursen BW, Simonsen JB, Weygand MJ, Kjaer K, Stoddart JF, Bjørnholm T.
PMID: 16851060
J Phys Chem B. 2005 Jan 27;109(3):1063-6. doi: 10.1021/jp0448494.

Surface sensitive X-ray techniques have been used to elucidate the structures of amphiphilic [2]rotaxane and dumbbell monolayers at the air/water interface. The [2]rotaxanes were found to adopt highly hydrated tilted and/or folded conformations on the water surface largely due...

Layered nanojunctions for hydrogen-evolution catalysis.

Angewandte Chemie (International ed. in English)

Hou Y, Laursen AB, Zhang J, Zhang G, Zhu Y, Wang X, Dahl S, Chorkendorff I.
PMID: 23427144
Angew Chem Int Ed Engl. 2013 Mar 25;52(13):3621-5. doi: 10.1002/anie.201210294. Epub 2013 Feb 20.

No abstract available.

Self-assembly and near perfect macroscopic alignment of fluorescent triangulenium salt in spin-cast thin films on PTFE.

Langmuir : the ACS journal of surfaces and colloids

Westerlund F, Lemke HT, Hassenkam T, Simonsen JB, Laursen BW.
PMID: 23627252
Langmuir. 2013 Jun 04;29(22):6728-36. doi: 10.1021/la400797b. Epub 2013 May 17.

Highly fluorescent, discotic trioxatriangulenium dyes were aligned by simple spin-casting on substrates with friction transferred PTFE layers. The fluorescent crystalline thin films show near perfect macroscopic alignment on centimeter large areas directly from spin-casting. Gracing Incidence X-ray Diffraction (GIXD)...

Non-destructive mapping of grain orientations in 3D by laboratory X-ray microscopy.

Scientific reports

McDonald SA, Reischig P, Holzner C, Lauridsen EM, Withers PJ, Merkle AP, Feser M.
PMID: 26494523
Sci Rep. 2015 Oct 23;5:14665. doi: 10.1038/srep14665.

The ability to characterise crystallographic microstructure, non-destructively and in three-dimensions, is a powerful tool for understanding many aspects related to damage and deformation mechanisms in polycrystalline materials. To this end, the technique of X-ray diffraction contrast tomography (DCT) using...

Fluorometric Recognition of Nucleotides within a Water-Soluble Tetrahedral Capsule.

Angewandte Chemie (International ed. in English)

Plajer AJ, Percástegui EG, Santella M, Rizzuto FJ, Gan Q, Laursen BW, Nitschke JR.
PMID: 30666756
Angew Chem Int Ed Engl. 2019 Mar 22;58(13):4200-4204. doi: 10.1002/anie.201814149. Epub 2019 Feb 06.

The design of aqueous probes and binders for complex, biologically relevant anions presents a key challenge in supramolecular chemistry. Herein, a tetrahedral assembly with cationic faces and corners is reported that is capable of discriminating between anionic and neutral...

Determination of protonation states of iminosugar-enzyme complexes using photoinduced electron transfer.

Chemical science

Wang B, Olsen JI, Laursen BW, Navarro Poulsen JC, Bols M.
PMID: 29163889
Chem Sci. 2017 Nov 01;8(11):7383-7393. doi: 10.1039/c7sc01540b. Epub 2017 Sep 14.

A series of

Ion-Pair Oligomerization of Chromogenic Triangulenium Cations with Cyanostar-Modified Anions That Controls Emission in Hierarchical Materials.

Journal of the American Chemical Society

Qiao B, Hirsch BE, Lee S, Pink M, Chen CH, Laursen BW, Flood AH.
PMID: 28437103
J Am Chem Soc. 2017 May 03;139(17):6226-6233. doi: 10.1021/jacs.7b01937. Epub 2017 Apr 24.

The hierarchical assembly of colored cationic molecules with receptor-modified counteranions can be used to control optical properties in materials. However, our knowledge of when the optical properties emerge in the hierarchical organization and the variety of cation-anion salts that...

Showing 1 to 12 of 192 entries