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Showing 1 to 12 of 227 entries
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Green algae in alpine biological soil crust communities: acclimation strategies against ultraviolet radiation and dehydration.

Biodiversity and conservation

Karsten U, Holzinger A.
PMID: 24954980
Biodivers Conserv. 2014;23:1845-1858. doi: 10.1007/s10531-014-0653-2. Epub 2014 Mar 02.

Green algae are major components of biological soil crusts in alpine habitats. Together with cyanobacteria, fungi and lichens, green algae form a pioneer community important for the organisms that will succeed them. In their high altitudinal habitat these algae...

Highly Porous Silicon Embedded in a Ceramic Matrix: A Stable High-Capacity Electrode for Li-Ion Batteries.

ACS nano

Vrankovic D, Graczyk-Zajac M, Kalcher C, Rohrer J, Becker M, Stabler C, Trykowski G, Albe K, Riedel R.
PMID: 29061037
ACS Nano. 2017 Nov 28;11(11):11409-11416. doi: 10.1021/acsnano.7b06031. Epub 2017 Oct 27.

We demonstrate a cost-effective synthesis route that provides Si-based anode materials with capacities between 2000 and 3000 mAh·g

Phase-Dependent Shifting of the Adrenal Clock by Acute Stress-Induced ACTH.

Frontiers in endocrinology

Engeland WC, Yoder JM, Karsten CA, Kofuji P.
PMID: 27445984
Front Endocrinol (Lausanne). 2016 Jun 29;7:81. doi: 10.3389/fendo.2016.00081. eCollection 2016.

The adrenal cortex has a molecular clock that generates circadian rhythms in glucocorticoid production, yet it is unclear how the clock responds to acute stress. We hypothesized that stress-induced ACTH provides a signal that phase shifts the adrenal clock....

Dehydration, temperature, and light tolerance in members of the aeroterrestrial green algal genus interfilum (streptophyta) from biogeographically different temperate soils.

Journal of phycology

Karsten U, Herburger K, Holzinger A.
PMID: 25810561
J Phycol. 2014 Oct;50(5):804-16. doi: 10.1111/jpy.12210.

Unicellular green algae of the genus Interfilum (Klebsormidiales, Streptophyta) are typical components of biological soil crusts. Four different aeroterrestrial Interfilum strains that have previously been molecular-taxonomically characterized and isolated from temperate soils in Belgium, Czech Republic, New Zealand, and...

Deformation-induced grain growth and twinning in nanocrystalline palladium thin films.

Beilstein journal of nanotechnology

Kobler A, Lohmiller J, Schäfer J, Kerber M, Castrup A, Kashiwar A, Gruber PA, Albe K, Hahn H, Kübel C.
PMID: 24205451
Beilstein J Nanotechnol. 2013 Sep 24;4:554-66. doi: 10.3762/bjnano.4.64. eCollection 2013.

The microstructure and mechanical properties of nanocrystalline Pd films prepared by magnetron sputtering have been investigated as a function of strain. The films were deposited onto polyimide substrates and tested in tensile mode. In order to follow the deformation...

Structure and stability of alpha- and beta-Ti2Se. Electron diffraction versus density-functional theory calculations.

Acta crystallographica. Section A, Foundations of crystallography

Albe K, Weirich TE.
PMID: 12496457
Acta Crystallogr A. 2003 Jan;59:18-21. doi: 10.1107/s0108767302018275. Epub 2002 Dec 21.

The alpha structure as well as the new beta modification of Ti(2)Se were recently characterized by electron diffraction structural analysis of nanosize crystallites. In this study, both structures are investigated by means of total energy calculations within the non-local...

Sound source reconstruction using inverse boundary element calculations.

The Journal of the Acoustical Society of America

Schuhmacher A, Hald J, Rasmussen KB, Hansen PC.
PMID: 12558252
J Acoust Soc Am. 2003 Jan;113(1):114-27. doi: 10.1121/1.1529668.

Whereas standard boundary element calculations focus on the forward problem of computing the radiated acoustic field from a vibrating structure, the aim in this work is to reverse the process, i.e., to determine vibration from acoustic field data. This...

Cu, Zn-superoxide dismutase 1 (SOD1) is a novel target of Puromycin-sensitive aminopeptidase (PSA/NPEPPS): PSA/NPEPPS is a possible modifier of amyotrophic lateral sclerosis.

Molecular neurodegeneration

Ren G, Ma Z, Hui M, Kudo LC, Hui KS, Karsten SL.
PMID: 21548977
Mol Neurodegener. 2011 May 07;6:29. doi: 10.1186/1750-1326-6-29.

Accumulation of misfolded neurotoxic Cu, Zn-superoxide dismutase-1 (SOD1) protein found in both familial and sporadic amyotrophic lateral sclerosis (ALS) is recognized as an important contributing factor of neuronal cell death. However, little is known about the mechanisms controlling the...

Research highlights: Immunotherapy.

Immunotherapy

Pilones KA, Demaria S.
PMID: 20636016
Immunotherapy. 2009 Sep;1(5):733-6. doi: 10.2217/imt.09.53.

No abstract available.

Desiccation stress and tolerance in green algae: consequences for ultrastructure, physiological and molecular mechanisms.

Frontiers in plant science

Holzinger A, Karsten U.
PMID: 23986769
Front Plant Sci. 2013 Aug 22;4:327. doi: 10.3389/fpls.2013.00327. eCollection 2013.

Although most green algae typically occur in aquatic ecosystems, many species also live partly or permanently under aeroterrestrial conditions, where the cells are exposed to the atmosphere and hence regularly experience dehydration. The ability of algal cells to survive...

Low temperature heat capacity of a severely deformed metallic glass.

Physical review letters

Bünz J, Brink T, Tsuchiya K, Meng F, Wilde G, Albe K, Kuknor S, Bhattacharya S.
PMID: 24745435
Phys Rev Lett. 2014 Apr 04;112(13):135501. doi: 10.1103/PhysRevLett.112.135501. Epub 2014 Apr 01.

The low temperature heat capacity of amorphous materials reveals a low-frequency enhancement (boson peak) of the vibrational density of states, as compared with the Debye law. By measuring the low-temperature heat capacity of a Zr-based bulk metallic glass relative...

Assessing preferences of individuals with developmental disabilities: a survey of current practices.

Behavior analysis in practice

Graff RB, Karsten AM.
PMID: 23730465
Behav Anal Pract. 2012;5(2):37-48. doi: 10.1007/BF03391822.

Although professionals working with individuals with developmental disabilities have much to gain from using systematic methods of reinforcer identification, practitioner knowledge and use of stimulus preference assessments (SPA) has rarely been examined. The purpose of this survey was to...

Showing 1 to 12 of 227 entries