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Showing 1 to 12 of 386 entries
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Connections between species diversity and genetic diversity

diversity

Vellend M, Geber MA.
GSID: 9UoAedBc3jsJ
M Vellend, MA Geber - Ecology letters, 2005 - Wiley Online Library

… between these two levels of diversity. Species diversity within communities and genetic diversity within populations are hypothesized to co-… that influence the two levels of diversity via parallel processes, or because of direct effects of one level of...

Charon tectonics.

Icarus

Beyer RA, Nimmo F, McKinnon WB, Moore JM, Binzel RP, Conrad JW, Cheng A, Ennico K, Lauer TR, Olkin CB, Robbins S, Schenk P, Singer K, Spencer JR, Stern SA, Weaver HA, Young LA, Zangari AM.
PMID: 28919640
Icarus. 2017 May 01;287:161-174. doi: 10.1016/j.icarus.2016.12.018. Epub 2016 Dec 16.

New Horizons images of Pluto's companion Charon show a variety of terrains that display extensional tectonic features, with relief surprising for this relatively small world. These features suggest a global extensional areal strain of order 1% early in Charon's...

Charge transfer reactions between gas-phase hydrated electrons, molecular oxygen and carbon dioxide at temperatures of 80-300 K.

Physical chemistry chemical physics : PCCP

Akhgarnusch A, Tang WK, Zhang H, Siu CK, Beyer MK.
PMID: 27498686
Phys Chem Chem Phys. 2016 Sep 14;18(34):23528-37. doi: 10.1039/c6cp03324e. Epub 2016 Aug 08.

The recombination reactions of gas-phase hydrated electrons (H2O)n˙(-) with CO2 and O2, as well as the charge exchange reaction of CO2˙(-)(H2O)n with O2, were studied by Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry in the temperature range T...

A density functional theory model of mechanically activated silyl ester hydrolysis.

The Journal of chemical physics

Pill MF, Schmidt SW, Beyer MK, Clausen-Schaumann H, Kersch A.
PMID: 25669537
J Chem Phys. 2014 Jan 28;140(4):044321. doi: 10.1063/1.4862827.

To elucidate the mechanism of the mechanically activated dissociation of chemical bonds between carboxymethylated amylose (CMA) and silane functionalized silicon dioxide, we have investigated the dissociation kinetics of the bonds connecting CMA to silicon oxide surfaces with density functional...

Electrons Mediate the Gas-Phase Oxidation of Formic Acid with Ozone.

Chemistry (Weinheim an der Bergstrasse, Germany)

van der Linde C, Tang WK, Siu CK, Beyer MK.
PMID: 27400953
Chemistry. 2016 Aug 26;22(36):12684-7. doi: 10.1002/chem.201603080. Epub 2016 Aug 01.

Gas-phase reactions of CO3 (.-) with formic acid are studied using Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry. Signal loss indicates the release of a free electron, with the formation of neutral reaction products. This is corroborated by...

Orbital Dimer Model for the Spin-Glass State in Y_{2}Mo_{2}O_{7}.

Physical review letters

Thygesen PM, Paddison JA, Zhang R, Beyer KA, Chapman KW, Playford HY, Tucker MG, Keen DA, Hayward MA, Goodwin AL.
PMID: 28234510
Phys Rev Lett. 2017 Feb 10;118(6):067201. doi: 10.1103/PhysRevLett.118.067201. Epub 2017 Feb 08.

The formation of a spin glass generally requires that magnetic exchange interactions are both frustrated and disordered. Consequently, the origin of spin-glass behavior in Y_{2}Mo_{2}O_{7}-in which magnetic Mo^{4+} ions occupy a frustrated pyrochlore lattice with minimal compositional disorder-has been...

Photochemistry of glyoxylate embedded in sodium chloride clusters, a laboratory model for tropospheric sea-salt aerosols.

Physical chemistry chemical physics : PCCP

Bersenkowitsch NK, Ončák M, van der Linde C, Herburger A, Beyer MK.
PMID: 29517776
Phys Chem Chem Phys. 2018 Mar 28;20(12):8143-8151. doi: 10.1039/c8cp00399h. Epub 2018 Mar 08.

Although marine aerosols undergo extensive photochemical processing in the troposphere, a molecular level understanding of the elementary steps involved in these complex reaction sequences is still missing. As a defined laboratory model system, the photodissociation of sea salt clusters...

Classifying dementia using local binary patterns from different regions in magnetic resonance images.

International journal of biomedical imaging

Oppedal K, Eftestøl T, Engan K, Beyer MK, Aarsland D.
PMID: 25873943
Int J Biomed Imaging. 2015;2015:572567. doi: 10.1155/2015/572567. Epub 2015 Mar 22.

Dementia is an evolving challenge in society, and no disease-modifying treatment exists. Diagnosis can be demanding and MR imaging may aid as a noninvasive method to increase prediction accuracy. We explored the use of 2D local binary pattern (LBP)...

Tension Independence of Lipid Diffusion and Membrane Viscosity.

Langmuir : the ACS journal of surfaces and colloids

Thoms VL, Hormel TT, Reyer MA, Parthasarathy R.
PMID: 28984459
Langmuir. 2017 Oct 31;33(43):12510-12515. doi: 10.1021/acs.langmuir.7b02917. Epub 2017 Oct 19.

The diffusion of biomolecules at lipid membranes is governed by the viscosity of the underlying two-dimensionally fluid lipid bilayer. For common three-dimensional fluids, viscosity can be modulated by hydrostatic pressure, and pressure-viscosity data have been measured for decades. Remarkably,...

Chemoselective silicification of synthetic peptides and polyamines.

Beilstein journal of nanotechnology

Abacilar M, Daus F, Geyer A.
PMID: 25671155
Beilstein J Nanotechnol. 2015 Jan 08;6:103-10. doi: 10.3762/bjnano.6.10. eCollection 2015.

Biosilicification sets the standard for the localized in vitro precipitation of silica at low orthosilicate concentrations in aqueous environment under ambient conditions. Numerous parameters must be controlled for the development of new technologies in designing inventive nanosilica structures, which...

Highly Expressed Genes within Hippocampal Sector CA1: Implications for the Physiology of Memory.

Neurology international

Meyer MA.
PMID: 24987507
Neurol Int. 2014 Jun 16;6(2):5388. doi: 10.4081/ni.2014.5388. eCollection 2014 Apr 22.

As the CA1 sector has been implicated to play a key role in memory formation, a dedicated search for highly expressed genes within this region was made from an on-line atlas of gene expression within the mouse brain (GENSAT)....

Spatial pattern analysis reveals similarities between amphetamine conditioned and unconditioned locomotion.

Behavioural pharmacology

Gold LH, Koob GF, Geyer MA.
PMID: 11224032
Behav Pharmacol. 1989;1(3):209-220.

The repeated injection of drugs which increase locomotion, paired with a distinctive testing environment, has been shown to result in conditioned hyperactivity upon subsequent exposure to the environment alone. Unknown, however, are the form and characteristics of the behavioral...

Showing 1 to 12 of 386 entries