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Showing 1 to 12 of 250 entries
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Nanoscale Origin of Mesoscale Roughening: Real-Time Tracking and Identification of Three Distinct Ruthenium Oxide Phases in Ruthenium Oxidation.

ACS nano

Flege JI, Herd B, Goritzka J, Over H, Krasovskii EE, Falta J.
PMID: 26171635
ACS Nano. 2015 Aug 25;9(8):8468-73. doi: 10.1021/acsnano.5b03393. Epub 2015 Jul 21.

The structural modification of the Ru(0001) surface is followed in real-time using low-energy electron microscopy at elevated temperatures during exposure to molecular oxygen. We observe the nucleation and growth of three different RuO2 facets, which are unambiguously identified by...

Platelet-derived growth factors (PDGFs) in glomerular and tubulointerstitial fibrosis.

Kidney international supplements

Ostendorf T, Boor P, van Roeyen CR, Floege J.
PMID: 26312152
Kidney Int Suppl (2011). 2014 Nov;4(1):65-69. doi: 10.1038/kisup.2014.12.

Renal fibrosis is the hallmark of chronic kidney disease progression and is characterized by an exaggerated wound-healing process with the production of renal scar tissue. It comprises both the glomerular and the tubulointerstitial compartments. Among the factors that contribute...

Growth and characterization of epitaxially stabilized ceria(001) nanostructures on Ru(0001).

Nanoscale

Flege JI, Höcker J, Kaemena B, Menteş TO, Sala A, Locatelli A, Gangopadhyay S, Sadowski JT, Senanayake SD, Falta J.
PMID: 27165117
Nanoscale. 2016 May 19;8(20):10849-56. doi: 10.1039/c6nr02393b.

We have studied (001) surface terminated cerium oxide nanoparticles grown on a ruthenium substrate using physical vapor deposition. Their morphology, shape, crystal structure, and chemical state are determined by low-energy electron microscopy and micro-diffraction, scanning probe microscopy, and synchrotron-based...

Role of RuO2(100) in surface oxidation and CO oxidation catalysis on Ru(0001).

Physical chemistry chemical physics : PCCP

Flege JI, Lachnitt J, Mazur D, Sutter P, Falta J.
PMID: 26601756
Phys Chem Chem Phys. 2016 Jan 07;18(1):213-9. doi: 10.1039/c5cp05807d. Epub 2015 Nov 25.

We have studied the oxidation of the Ru(0001) surface by in situ microscopy during exposure to NO2, an efficient source of atomic oxygen, at elevated temperatures. In a previous investigation [Flege et al., Phys. Rev. B: Condens. Matter Mater....

Nanoscale analysis of the oxidation state and surface termination of praseodymium oxide ultrathin films on ruthenium(0001).

Ultramicroscopy

Flege JI, Krisponeit JO, Höcker J, Hoppe M, Niu Y, Zakharov A, Schaefer A, Falta J, Krasovskii EE.
PMID: 28526269
Ultramicroscopy. 2017 Dec;183:61-66. doi: 10.1016/j.ultramic.2017.05.007. Epub 2017 May 10.

The complex structure and morphology of ultrathin praseodymia films deposited on a ruthenium(0001) single crystal substrate by reactive molecular beam epitaxy is analyzed by intensity-voltage low-energy electron microscopy in combination with theoretical calculations within an ab initio scattering theory....

Morphology and chemical composition of cobalt germanide islands on Ge(001).

Nanotechnology

Ewert M, Schmidt T, Flege JI, Heidmann I, Grzela T, Klesse WM, Foerster M, Aballe L, Schroeder T, Falta J.
PMID: 27348504
Nanotechnology. 2016 Aug 12;27(32):325705. doi: 10.1088/0957-4484/27/32/325705. Epub 2016 Jun 27.

The reactive growth of cobalt germanide on Ge(001) was investigated by means of in situ x-ray absorption spectroscopy photoemission electron microscopy (XAS-PEEM), micro-illumination low-energy electron diffraction (μ-LEED), and ex situ atomic force microscopy (AFM). At a Co deposition temperature...

Note: Sample holder with open area for increased deposition rate in plasma immersion ion implantation and deposition.

The Review of scientific instruments

Flege S, Hatada R, Derepa A, Dietz C, Ensinger W, Baba K.
PMID: 28964196
Rev Sci Instrum. 2017 Sep;88(9):096106. doi: 10.1063/1.4995080.

A sample holder with a large open area offers several benefits when used in the process of plasma immersion ion implantation and deposition in which the plasma is generated by a high voltage applied to the sample holder: The...

[Questionnaire of self-efficacy, optimism and pessimism: reconstruction, selection of items and validation of an instrument by means of examinations of clinical samples].

Psychotherapie, Psychosomatik, medizinische Psychologie

Scholler G, Fliege H, Klapp BF.
PMID: 10488648
Psychother Psychosom Med Psychol. 1999 Aug;49(8):275-83.

Self-efficacy and optimism are considered highly useful parameters in the context of therapeutic indication prognosis, and outcome evaluation. In our study, a combined questionnaire measuring "self-efficacy" (Schwarzer u. Jerusalem 1986) and "optimism" (Scheier u. Carver 1985) was restructured and...

Alignment of Ge nanoislands on Si(111) by Ga-induced substrate self-patterning.

Physical review letters

Schmidt T, Flege JI, Gangopadhyay S, Clausen T, Locatelli A, Heun S, Falta J.
PMID: 17358960
Phys Rev Lett. 2007 Feb 09;98(6):066104. doi: 10.1103/PhysRevLett.98.066104. Epub 2007 Feb 09.

A novel mechanism is described which enables the selective formation of three-dimensional Ge islands. Submonolayer adsorption of Ga on Si(111) at high temperature leads to a self-organized two-dimensional pattern formation by separation of the 7 x 7 substrate and...

A one-year longitudinal study of English and Japanese vowel production by Japanese adults and children in an English-speaking setting.

Journal of phonetics

Oh GE, Guion-Anderson S, Aoyama K, Flege JE, Akahane-Yamada R, Yamada T.
PMID: 21603058
J Phon. 2011 Apr 01;39(2):156-157. doi: 10.1016/j.wocn.2011.01.002.

The effect of age of acquisition on first- and second-language vowel production was investigated. Eight English vowels were produced by Native Japanese (NJ) adults and children as well as by age-matched Native English (NE) adults and children. Productions were...

Should blood cultures be obtained in all infants 3 to 36 months presenting with significant fever?.

Hospital pediatrics

Rappaport DI, Cooperberg D, Fliegel J.
PMID: 24510929
Hosp Pediatr. 2011 Jul 01;1(1):46-50. doi: 10.1542/hpeds.2011-0011.

CONTEXT: Fever without source (FWS) in children 3-36 months is a common presenting complaint. Because of changes in immunization practices and their effects on rates of bacteremia, older guidelines may no longer be applicable. We reviewed the literature regarding...

CCN3/NOV small interfering RNA enhances fibrogenic gene expression in primary hepatic stellate cells and cirrhotic fat storing cell line CFSC.

Journal of cell communication and signaling

Borkham-Kamphorst E, van Roeyen CR, Van de Leur E, Floege J, Weiskirchen R.
PMID: 21748432
J Cell Commun Signal. 2012 Mar;6(1):11-25. doi: 10.1007/s12079-011-0141-3. Epub 2011 Jul 05.

Nephroblastoma overexpressed gene encodes a matricellular protein (CCN3/NOV) of the CCN family, comprising CCN1 (CYR61), CCN2 (CTGF), CCN4 (WISP-1), CCN5 (WISP-2), and CCN6 (WISP-3). CCN proteins are involved in the regulation of mitosis, adhesion, apoptosis, extracellular matrix production, growth...

Showing 1 to 12 of 250 entries