J A Schaefer
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Explore the profile of J A Schaefer including associated specialties, affiliations and a list of published articles.
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35
Citations
313
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Recent Articles
1.
Bergman C, Schaefer J, Luttich S
Oecologia
. 2017 Mar;
123(3):364-374.
PMID: 28308591
Movement is a primary mechanism coupling animals to their environment, yet there exists little empirical analysis to test our theoretical knowledge of this basic process. We used correlated random walk...
2.
Winter foraging by muskoxen: a hierarchical approach to patch residence time and cratering behaviour
Schaefer J, Messier F
Oecologia
. 2017 Mar;
104(1):39-44.
PMID: 28306911
We examined the temporal and spatial patterns of feeding behaviours of muskoxen during winter in the High Arctic. Pawing motions (to uncover forages beneath snow cover) were strongly aggregated into...
3.
Koch R, Fryska S, Ostler M, Endlich M, Speck F, Hansel T, et al.
Phys Rev Lett
. 2016 Mar;
116(10):106802.
PMID: 27015502
Using inelastic electron scattering in combination with dielectric theory simulations on differently prepared graphene layers on silicon carbide, we demonstrate that the coupling between the 2D plasmon of graphene and...
4.
Liu Y, Gubisch M, Spiess L, Schaefer J
J Nanosci Nanotechnol
. 2009 Jun;
9(6):3499-505.
PMID: 19504875
The transfer film on steel spheres formed in reciprocating sliding against nanocomposite coatings based on nanocrystalline WC1-x in amorphous carbon matrix is characterized and correlated with the tribological properties measured...
5.
Alda J, Fumeaux C, Codreanu I, Schaefer J, Boreman G
Appl Opt
. 2008 Mar;
38(19):3993-4000.
PMID: 18323874
The spatial impulse response of antenna-coupled infrared detectors with dimensions comparable with the wavelength is obtained from a two-dimensional scan of a tightly focused CO(2)-laser beam. The method uses an...
6.
Mayor S, Schaefer J, Schneider D, Mahoney S
Ecology
. 2007 Jul;
88(7):1634-40.
PMID: 17645009
Detecting habitat selection depends on the spatial scale of analysis, but multi-scale studies have been limited by the use of a few, spatially variable, hierarchical levels. We developed spatially explicit...
7.
Krischok S, Eremtchenko M, Himmerlich M, Lorenz P, Uhlig J, Neumann A, et al.
J Phys Chem B
. 2007 May;
111(18):4801-6.
PMID: 17474703
The near-surface structure of the room-temperature ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide has been investigated as a function of temperature between 100 and 620 K. We used a combination of photoelectron spectroscopies...
8.
Hofft O, Bahr S, Himmerlich M, Krischok S, Schaefer J, Kempter V
Langmuir
. 2006 Aug;
22(17):7120-3.
PMID: 16893200
The near-surface electronic structure of the room-temperature ionic liquid (RT-IL) 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM][Tf(2)N]) has been investigated with the combination of the electron spectroscopies metastable impact electron spectroscopy (MIES), ultraviolet photoelectron...
9.
Eremtchenko M, Schaefer J, Tautz F
Nature
. 2003 Oct;
425(6958):602-5.
PMID: 14534582
If the rich functionality of organic molecules is to be exploited in devices such as light-emitting diodes or field-effect transistors, interface properties of organic materials with various (metallic and insulating)...
10.
Kurtz K, Hamilton R, Schaefer J, Primeau M, Adkinson Jr N
Allergy
. 2001 Sep;
56(9):857-61.
PMID: 11551250
Background: Bronchial, nasal, and conjunctival challenges are useful for clarifying discordant clinical history (Hx) and skin and/or serologic tests and in assessing semiquantitative changes in biologic sensitivity over time. The...