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Showing 1 to 12 of 533 entries
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Measurement of proton resonance frequency shift coefficient during MR-guided focused ultrasound on Thiel embalmed tissue.

Magnetic resonance in medicine

Karakitsios I, Dogadkin O, Le N, Melzer A.
PMID: 25056821
Magn Reson Med. 2015 Jul;74(1):260-265. doi: 10.1002/mrm.25378. Epub 2014 Jul 23.

PURPOSE: To estimate the value of proton resonance frequency (PRF) shift coefficient of explanted Thiel embalmed animal and human tissue used as a preclinical model for treatment with MR-guided focused ultrasound (FUS).METHODS: Thiel embalmed human liver, ovine liver, and...

Nanomorphology Effects in Semiconductors with Native Ferromagnetism: Hierarchical Europium (II) Oxide Tubes Prepared via a Topotactic Nanostructure Transition.

Advanced materials (Deerfield Beach, Fla.)

Trepka B, Erler P, Selzer S, Kollek T, Boldt K, Fonin M, Nowak U, Wolf D, Lubk A, Polarz S.
PMID: 29152806
Adv Mater. 2018 Jan;30(1). doi: 10.1002/adma.201703612. Epub 2017 Nov 20.

Semiconductors with native ferromagnetism barely exist and defined nanostructures are almost unknown. This lack impedes the exploration of a new class of materials characterized by a direct combination of effects on the electronic system caused by quantum confinement effects...

Connecting the wakefield instabilities in dusty plasmas.

Physical review. E, Statistical, nonlinear, and soft matter physics

Melzer A.
PMID: 25493893
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Nov;90(5):053103. doi: 10.1103/PhysRevE.90.053103. Epub 2014 Nov 17.

The wakefield, or ion focus, formed by ions streaming past dust particles trapped in the plasma sheath leads to two types of instabilities: the Schweigert instability in multilayer systems and the mode-coupling instability that already appears in single-layer dust...

[Correction: Linkage Between Promotion of Employment and Promotion of Health in the Community Setting - Results of the Pilot Project of the Federal Employment Agency and the Statutory Health Insurance].

Gesundheitswesen (Bundesverband der Arzte des Offentlichen Gesundheitsdienstes (Germany))

Bellwinkel M, Schreiner-Kürten K, Melzer K.
PMID: 28564711
Gesundheitswesen. 2019 Jan;81(1):e33. doi: 10.1055/s-0036-1597244. Epub 2017 May 31.

No abstract available.

Point focusing with flat and wedged crossed multilayer Laue lenses.

Journal of synchrotron radiation

Kubec A, Melzer K, Gluch J, Niese S, Braun S, Patommel J, Burghammer M, Leson A.
PMID: 28244434
J Synchrotron Radiat. 2017 Mar 01;24:413-421. doi: 10.1107/S1600577517001722. Epub 2017 Feb 21.

Point focusing measurements using pairs of directly bonded crossed multilayer Laue lenses (MLLs) are reported. Several flat and wedged MLLs have been fabricated out of a single deposition and assembled to realise point focusing devices. The wedged lenses have...

Measurements of the electric field of zero-point optical phonons in GaAs quantum wells support the Urbach rule for zero-temperature lifetime broadening.

Physical review letters

Bhattacharya R, Mondal R, Khatua P, Rudra A, Kapon E, Malzer S, Döhler G, Pal B, Bansal B.
PMID: 25679907
Phys Rev Lett. 2015 Jan 30;114(4):047402. doi: 10.1103/PhysRevLett.114.047402. Epub 2015 Jan 28.

We study a specific type of lifetime broadening resulting in the well-known exponential "Urbach tail" density of states within the energy gap of an insulator. After establishing the frequency and temperature dependence of the Urbach edge in GaAs quantum...

Stepwise error-prone PCR and DNA shuffling changed the pH activity range and product specificity of the cyclodextrin glucanotransferase from an alkaliphilic Bacillus sp.

FEBS open bio

Melzer S, Sonnendecker C, Föllner C, Zimmermann W.
PMID: 26155461
FEBS Open Bio. 2015 Jun 11;5:528-34. doi: 10.1016/j.fob.2015.06.002. eCollection 2015.

Cyclodextrin glucanotransferase (EC 2.4.1.19) from the alkaliphilic Bacillus sp. G-825-6 converts starch mainly to γ-cyclodextrin (CD8). A combination of error-prone PCR and DNA shuffling was used to obtain variants of this enzyme with higher product specificity for CD8 and...

Comparative restriction endonuclease analysis and molecular cloning of plastid DNAs from wild species and cultivated varieties of the genus Beta (L.).

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik

Fritzsche K, Metzlaff M, Melzer R, Hagemann R.
PMID: 24240214
Theor Appl Genet. 1987 Sep;74(5):589-94. doi: 10.1007/BF00288857.

A phyletic tree of the genus Beta has been constructed based on EcoRI and PstI plastid DNA restriction patterns of eight species from three sections of the genus. In contrast to the remarkable morphological variability of the varieties of...

Computed Tomography- and Magnetic Resonance Imaging: Guided Microtherapy.

Seminars in laparoscopic surgery

Seibel RM, Melzer A, Schmidt A, Plabetamann J.
PMID: 10401142
Semin Laparosc Surg. 1997 Jun;4(2):61-73. doi: 10.1053/SLAS00400061.

This report describes techniques of computed tomography (CT) and magnetic resonance imaging (MRI) image-guided diagnosis and therapy. Fine-needle biopsy, interstitial tumor therapy, and chemical sympathectomy, as well as the treatment of chronic spinal diseases, including periradicular infiltration at irritated...

A New Generation of "Cholaphanes": Steroid-Derived Macrocyclic Hosts with Enhanced Solubility and Controlled Flexibility.

The Journal of organic chemistry

Bhattarai KM, Davis AP, Perry JJ, Walter CJ, Menzer S, Williams DJ.
PMID: 11671987
J Org Chem. 1997 Nov 28;62(24):8463-8473. doi: 10.1021/jo971272w.

The macrocyclic "cholaphanes" 3a-c were synthesized from the inexpensive steroid cholic acid. Like earlier relatives they feature substantial cavities with inward-directed hydroxyl groups, suitable for binding polar molecules such as carbohydrates in nonpolar media. New features are the externally...

Sepsis and neutropenia induced by clozapine.

Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases

Melzer M, Hassanyeh FK, Snow MH, Ong EL.
PMID: 11864252
Clin Microbiol Infect. 1998;4(10):604-605. doi: 10.1111/j.1469-0691.1998.tb00046.x.

No abstract available.

Normal modes of 2D finite clusters in complex plasmas.

Physical review letters

Melzer A, Klindworth M, Piel A.
PMID: 11531530
Phys Rev Lett. 2001 Sep 10;87(11):115002. doi: 10.1103/PhysRevLett.87.115002. Epub 2001 Aug 24.

Finite clusters with a small number of charged particles immersed in a complex-plasma environment have been investigated experimentally. Finite clusters in complex plasmas are shown to be a unique system for the excitation and observation of normal modes in...

Showing 1 to 12 of 533 entries