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Showing 1 to 12 of 343 entries
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Hypersulfidic deep biosphere indicates extreme sulfur isotope fractionation during single-step microbial sulfate reduction

Cultural Transformation in the Geoscience Community AND Program Evaluation

Bernasconi SM, Böttcher ME, Wortmann UG.
GSID: r4PibTEGnD4J
UG Wortmann, SM Bernasconi, ME Böttcher - Geology, 2001 - pubs.geoscienceworld.org

Coexisting dissolved sulfide and sulfate from hypersulfidic interstitial waters of a 380-m-long sediment core show a large isotopic difference of up to 72‰ caused by in situ microbial sulfate reduction. This is considerably larger than the assumed biological maximum...

Erratum to "Determination of the irradiation field at the research reactor TRIGA Mainz for BNCT" [J. Appl. Radiat. Isot. 67 (2009) S242-S246].

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Duvinage Née Krey C, Nagels S, Hampel G, Kratz JV, Aguilar AL, Minouchehr S, Otto G, Schmidberger H, Schütz C, Vogtländer L, Wortmann B, Burgkhardt B.
PMID: 27263359
Appl Radiat Isot. 2016 Sep;115:312. doi: 10.1016/j.apradiso.2016.05.015. Epub 2016 Jun 02.

No abstract available.

Following the steps of a reaction by direct imaging of many individual molecules.

Chemical communications (Cambridge, England)

van Vörden D, Wortmann B, Schmidt N, Lange M, Robles R, Brendel L, Bobisch CA, Möller R.
PMID: 27230941
Chem Commun (Camb). 2016 Jun 08;52(49):7711-4. doi: 10.1039/c6cc02959k.

The dehydrogenation and dechlorination of FeOEP-Cl on Cu(111) has been studied in detail by scanning tunneling microscopy. Although, it is not possible to follow the reaction of an individual molecule, the complete pathway of the reaction with 22 inequivalent...

Terlipressin protects intestinal epithelial cells against oxygen-glucose deprivation/re-oxygenation injury via the phosphatidylinositol 3-kinase pathway.

Experimental and therapeutic medicine

Liu ZM, Zhang XY, Chen J, Shen JT, Jiang ZY, Guan XD.
PMID: 28672923
Exp Ther Med. 2017 Jul;14(1):260-266. doi: 10.3892/etm.2017.4502. Epub 2017 May 23.

Intestinal ischemia/reperfusion (I/R) injury is associated with a high morbidity and mortality. Vasopressin is administered to critically ill patients with potential intestinal I/R. However, the impacts of vasopressin on intestinal epithelia under ischemic/anoxic conditions remain unclear. The aim of...

Apoptotic Effect of Wortmannolone on Cancer Cells through Potent ROS Induction.

International journal of cancer research

Acuña UM, Fatima N, Ahmed S, Chang LC, de Blanco EJ.
PMID: 25663936
Int J Cancer Res (Tortola). 2013 Nov;47(2):1185-1195.

Nuclear factor κappa-B inhibitors isolated from natural sources that induce apoptosis are promising new agents with anticancer properties. Wortmannin and wortmannolone were isolated from endophytic fungus (

Reversible 2D Phase Transition Driven By an Electric Field: Visualization and Control on the Atomic Scale.

Nano letters

Wortmann B, van Vörden D, Graf P, Robles R, Abufager P, Lorente N, Bobisch CA, Möller R.
PMID: 26645498
Nano Lett. 2016 Jan 13;16(1):528-33. doi: 10.1021/acs.nanolett.5b04174. Epub 2015 Dec 16.

We report on a reversible structural phase transition of a two-dimensional system that can be locally induced by an external electric field. Two different structural configurations may coexist within a CO monolayer on Cu(111). The balance between the two...

Reply.

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America

Wortmann G.
PMID: 10987745
Clin Infect Dis. 2000 Aug;31(2):627. doi: 10.1086/313962.

No abstract available.

001: hepatocyte growth factor/scatter factor inhibits UVB induced apoptosis of human keratinocytes via the PI-3-kinase pathway.

The Journal of investigative dermatology

Mildner M, Eckhart L, Lengauer B, Tschachler E.
PMID: 10594764
J Invest Dermatol. 1999 Dec;113(6):1136-7. doi: 10.1046/j.1523-1747.1999.00815.x.

UVB-irradiation induces apoptosis in primary keratinocytes (KC) and KC-derived cell-lines A431 and HaCaT. Here we report on the inhibition of UV induced KC-apoptosis by hepatocyte growth factor/scatter factor (HGF/SF). The protective effect of HGF/SF for UVB-irradiated primary KC was...

ATOP dyes. optimization of a multifunctional merocyanine chromophore for high refractive index modulation in photorefractive materials.

Journal of the American Chemical Society

Würthner F, Yao S, Schilling J, Wortmann R, Redi-Abshiro M, Mecher E, Gallego-Gomez F, Meerholz K.
PMID: 11456967
J Am Chem Soc. 2001 Mar 28;123(12):2810-24. doi: 10.1021/ja002321g.

This paper reports synthesis, characterization and structural optimization of amino-thienyl-dioxocyano-pyridine (ATOP) chromophores toward a multifunctional amorphous material with unprecedented photorefractive performance. The structural (dynamic NMR, XRD) and electronic (UV/vis, electrooptical absorption, Kerr effect measurements) characterization of the ATOP chromophore...

Effect of monocyte chemoattractant protein-1 on murine bone marrow cells: proliferation, colony-forming ability and signal transduction pathway involved.

International journal of immunopathology and pharmacology

Biswas SK, Sodhi A.
PMID: 12575918
Int J Immunopathol Pharmacol. 2002 Sep-Dec;15(3):183-194. doi: 10.1177/039463200201500304.

Monocyte chemoattractant protein-1 (MCP-1) plays a crucial role in the migration and activation of leukocytes in both physiological and pathological contexts. In this paper, we report the in vitro effect of MCP-1 on myeloid haematopoiesis. MCP-1-treated murine nonadherent bone...

Phonon density of states of iron up to 153 gigapascals.

Science (New York, N.Y.)

Mao HK, Xu J, Struzhkin VV, Shu J, Hemley RJ, Sturhahn W, Hu MY, Alp EE, Vocadlo L, Alfè D, Price GD, Gillan MJ, Schwoerer-Böhning M, Häusermann D, Eng P, Shen G, Giefers H, Lübbers R, Wortmann G.
PMID: 11340201
Science. 2001 May 04;292(5518):914-6. doi: 10.1126/science.1057670.

We report phonon densities of states (DOS) of iron measured by nuclear resonant inelastic x-ray scattering to 153 gigapascals and calculated from ab initio theory. Qualitatively, they are in agreement, but the theory predicts density at higher energies. From...

[Gastrectomy and pulmonary tuberculosis; methodical errors].

Das Deutsche Gesundheitswesen

WORTMANN H.
PMID: 13786721
Dtsch Gesundheitsw. 1961 Jun 15;16:1095-100.

No abstract available.

Showing 1 to 12 of 343 entries