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Showing 1 to 12 of 276 entries
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Viscoelastic properties and efficient acoustic damping in confined polymer nano-layers at GHz frequencies.

Scientific reports

Hettich M, Jacob K, Ristow O, Schubert M, Bruchhausen A, Gusev V, Dekorsy T.
PMID: 27633351
Sci Rep. 2016 Sep 16;6:33471. doi: 10.1038/srep33471.

We investigate the viscoelastic properties of confined molecular nano-layers by time resolved optical pump-probe measurements. Access to the elastic properties is provided by the damping time of acoustic eigenmodes of thin metal films deposited on the molecular nano-layers which...

Characterization of Four Bifunctional Plant IAM/PAM-Amidohydrolases Capable of Contributing to Auxin Biosynthesis.

Plants (Basel, Switzerland)

Sánchez-Parra B, Frerigmann H, Alonso MM, Loba VC, Jost R, Hentrich M, Pollmann S.
PMID: 27135507
Plants (Basel). 2014 Aug 07;3(3):324-47. doi: 10.3390/plants3030324.

Amidases [EC 3.5.1.4] capable of converting indole-3-acetamide (IAM) into the major plant growth hormone indole-3-acetic acid (IAA) are assumed to be involved in auxin de novo biosynthesis. With the emerging amount of genomics data, it was possible to identify...

Magnesium Fluoride Electron-Selective Contacts for Crystalline Silicon Solar Cells.

ACS applied materials & interfaces

Wan Y, Samundsett C, Bullock J, Allen T, Hettick M, Yan D, Zheng P, Zhang X, Cui J, McKeon J, Javey A, Cuevas A.
PMID: 27219911
ACS Appl Mater Interfaces. 2016 Jun 15;8(23):14671-7. doi: 10.1021/acsami.6b03599. Epub 2016 Jun 01.

In this study, we present a novel application of thin magnesium fluoride films to form electron-selective contacts to n-type crystalline silicon (c-Si). This allows the demonstration of a 20.1%-efficient c-Si solar cell. The electron-selective contact is composed of deposited...

Synthesis of 2-Thiocarbohydrates and Their Binding to Concanavalin A.

The Journal of organic chemistry

Pavashe P, Elamparuthi E, Hettrich C, Möller HM, Linker T.
PMID: 27518032
J Org Chem. 2016 Sep 16;81(18):8595-603. doi: 10.1021/acs.joc.6b00987. Epub 2016 Aug 30.

A convenient and general synthesis of 2-thiocarbohydrates via cerium ammonium nitrate oxidation of the thiocyanate ion is described. Radical addition to glycals proceeds with excellent regio- and good stereoselectivities in only one step, deprotection affords water-soluble 2-thio saccharides. Binding...

Nanoscale Junction Formation by Gas-Phase Monolayer Doping.

ACS applied materials & interfaces

Taheri P, Fahad HM, Tosun M, Hettick M, Kiriya D, Chen K, Javey A.
PMID: 28548483
ACS Appl Mater Interfaces. 2017 Jun 21;9(24):20648-20655. doi: 10.1021/acsami.7b03974. Epub 2017 Jun 07.

A major challenge in transistor technology scaling is the formation of controlled ultrashallow junctions with nanometer-scale thickness and high spatial uniformity. Monolayer doping (MLD) is an efficient method to form such nanoscale junctions, where the self-limiting nature of semiconductor...

Natural environments and suicide mortality in the Netherlands: a cross-sectional, ecological study.

The Lancet. Planetary health

Helbich M, de Beurs D, Kwan MP, O'Connor RC, Groenewegen PP.
PMID: 29546252
Lancet Planet Health. 2018 Mar;2(3):e134-e139. doi: 10.1016/S2542-5196(18)30033-0.

BACKGROUND: Natural outdoor environments, such as green spaces (ie, grass, forests, or parks), blue spaces (ie, visible bodies of fresh or salt water), and coastal proximity, have been increasingly shown to promote mental health. However, little is known about...

Proteomic Stable Isotope Probing Reveals Biosynthesis Dynamics of Slow Growing Methane Based Microbial Communities.

Frontiers in microbiology

Marlow JJ, Skennerton CT, Li Z, Chourey K, Hettich RL, Pan C, Orphan VJ.
PMID: 27199908
Front Microbiol. 2016 Apr 29;7:563. doi: 10.3389/fmicb.2016.00563. eCollection 2016.

Marine methane seep habitats represent an important control on the global flux of methane. Nucleotide-based meta-omics studies outline community-wide metabolic potential, but expression patterns of environmentally relevant proteins are poorly characterized. Proteomic stable isotope probing (proteomic SIP) provides additional...

[Central venous pressure - a safety parameter].

Der Anaesthesist

Siegler BH, Bernhard M, Brenner T, Gerlach H, Henrich M, Hofer S, John S, Kilger E, Krüger WA, Lichtenstern C, Mayer K, Müller M, Niemann B, Oppert M, Rex S, Rossaint R, Weiterer S, Weigand MA.
PMID: 26511034
Anaesthesist. 2015 Dec;64(12):977-980. doi: 10.1007/s00101-015-0106-7.

No abstract available.

Collective Modes and Structural Modulation in Ni-Mn-Ga(Co) Martensite Thin Films Probed by Femtosecond Spectroscopy and Scanning Tunneling Microscopy.

Physical review letters

Schubert M, Schaefer H, Mayer J, Laptev A, Hettich M, Merklein M, He C, Rummel C, Ristow O, Großmann M, Luo Y, Gusev V, Samwer K, Fonin M, Dekorsy T, Demsar J.
PMID: 26317735
Phys Rev Lett. 2015 Aug 14;115(7):076402. doi: 10.1103/PhysRevLett.115.076402. Epub 2015 Aug 13.

The origin of the martensitic transition in the magnetic shape memory alloy Ni-Mn-Ga has been widely discussed. While several studies suggest it is electronically driven, the adaptive martensite model reproduced the peculiar nonharmonic lattice modulation. We used femtosecond spectroscopy...

Strain-resolved microbial community proteomics reveals simultaneous aerobic and anaerobic function during gastrointestinal tract colonization of a preterm infant.

Frontiers in microbiology

Brooks B, Mueller RS, Young JC, Morowitz MJ, Hettich RL, Banfield JF.
PMID: 26191049
Front Microbiol. 2015 Jul 01;6:654. doi: 10.3389/fmicb.2015.00654. eCollection 2015.

While there has been growing interest in the gut microbiome in recent years, it remains unclear whether closely related species and strains have similar or distinct functional roles and if organisms capable of both aerobic and anaerobic growth do...

Phase-Stable Free-Space Optical Lattices for Trapped Ions.

Physical review letters

Schmiegelow CT, Kaufmann H, Ruster T, Schulz J, Kaushal V, Hettrich M, Schmidt-Kaler F, Poschinger UG.
PMID: 26849591
Phys Rev Lett. 2016 Jan 22;116(3):033002. doi: 10.1103/PhysRevLett.116.033002. Epub 2016 Jan 21.

We demonstrate control of the absolute phase of an optical lattice with respect to a single trapped ion. The lattice is generated by off-resonant free-space laser beams, and we actively stabilize its phase by measuring its ac-Stark shift on...

EEG Responses to Auditory Stimuli for Automatic Affect Recognition.

Frontiers in neuroscience

Hettich DT, Bolinger E, Matuz T, Birbaumer N, Rosenstiel W, Spüler M.
PMID: 27375410
Front Neurosci. 2016 Jun 10;10:244. doi: 10.3389/fnins.2016.00244. eCollection 2016.

Brain state classification for communication and control has been well established in the area of brain-computer interfaces over the last decades. Recently, the passive and automatic extraction of additional information regarding the psychological state of users from neurophysiological signals...

Showing 1 to 12 of 276 entries