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Showing 25 to 36 of 548 entries
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Determination of suitable column geometries by means of van Deemter and kinetic plots for isothermal and isocratic method development in high-temperature liquid chromatography isotope ratio mass spectrometry.

Analytical chemistry

Ermisch P, Wiese S, Weber H, Teutenberg T.
PMID: 22264167
Anal Chem. 2012 Feb 07;84(3):1565-71. doi: 10.1021/ac202819v. Epub 2012 Jan 20.

The method of high-temperature liquid chromatography isotope ratio mass spectrometry (HTLC-IRMS) is used to determine the origin or authenticity of compounds. Currently, the drawback of this hyphenation is the interface which causes pronounced band broadening due to a large...

Novel PPV/mesoporous organosilica composites: influence of the host chirality on a conjugated polymer guest.

Langmuir : the ACS journal of surfaces and colloids

Mehr SH, Giese M, Qi H, Shopsowitz KE, Hamad WY, MacLachlan MJ.
PMID: 24074378
Langmuir. 2013 Oct 08;29(40):12579-84. doi: 10.1021/la4024597. Epub 2013 Sep 27.

The conjugated polymer poly(p-phenylenevinylene) (PPV) was polymerized in the pores of chiral nematic mesoporous organosilica to give a composite film showing the strong characteristic fluorescence of PPV as well as the iridescence due to the photonic band gap of...

Accelerated Schedule for Hepatitis B Immunization.

Journal of travel medicine

Baumgarten R, Bock HL, Clemens R, Dutz W, Löscher T, Sänger R, Scheiermann N, Wiese M.
PMID: 9815393
J Travel Med. 1995 Dec 01;2(4):213-217. doi: 10.1111/j.1708-8305.1995.tb00661.x.

Background: A considerable number of people remain unprotected against hepatitis B. These people may require immunization at short notice before being exposed to situations or locations where a risk of infection is present. Currently, full active immunization against hepatitis...

Optically transparent solid electrodes for precision Penning traps.

The Review of scientific instruments

Wiesel M, Birkl G, Ebrahimi MS, Martin A, Quint W, Stallkamp N, Vogel M.
PMID: 29289211
Rev Sci Instrum. 2017 Dec;88(12):123101. doi: 10.1063/1.5002180.

We have conceived, built, and operated a cryogenic Penning trap with an electrically conducting yet optically transparent solid electrode. The trap, dedicated to spectroscopy and imaging of confined particles under large solid angles, is of "half-open" design with one...

Emerging Evidence for Cannabis' Role in Opioid Use Disorder.

Cannabis and cannabinoid research

Wiese B, Wilson-Poe AR.
PMID: 30221197
Cannabis Cannabinoid Res. 2018 Sep 01;3(1):179-189. doi: 10.1089/can.2018.0022. eCollection 2018.

No abstract available.

Combined treatment with memantine and galantamine-CR compared with galantamine-CR only in antidementia drug naïve patients with mild-to-moderate Alzheimer's disease.

Alzheimer's & dementia (New York, N. Y.)

Peters O, Fuentes M, Joachim LK, Jessen F, Luckhaus C, Kornhuber J, Pantel J, Hüll M, Schmidtke K, Rüther E, Möller HJ, Kurz A, Wiltfang J, Maier W, Wiese B, Frölich L, Heuser I.
PMID: 29854939
Alzheimers Dement (N Y). 2015 Oct 19;1(3):198-204. doi: 10.1016/j.trci.2015.10.001. eCollection 2015 Nov.

INTRODUCTION: Several studies have tested the N-methyl-D-aspartate-receptor antagonist memantine as an add-on to pre-existing treatment with acetylcholinesterase inhibitors. The objective of this study was to evaluate the efficacy and safety of a combined memantine and galantamine-CR de novo regimen...

Potential of Pectins to Beneficially Modulate the Gut Microbiota Depends on Their Structural Properties.

Frontiers in microbiology

Larsen N, Bussolo de Souza C, Krych L, Barbosa Cahú T, Wiese M, Kot W, Hansen KM, Blennow A, Venema K, Jespersen L.
PMID: 30828323
Front Microbiol. 2019 Feb 15;10:223. doi: 10.3389/fmicb.2019.00223. eCollection 2019.

Pectins are plant cell-wall polysaccharides which can be utilized by commensal bacteria in the gut, exhibiting beneficial properties for the host. Knowledge of the impact of pectins on intestinal bacterial communities is insufficient and limited to a few types...

Data-Driven Differential Diagnosis of Dementia Using Multiclass Disease State Index Classifier.

Frontiers in aging neuroscience

Tolonen A, Rhodius-Meester HFM, Bruun M, Koikkalainen J, Barkhof F, Lemstra AW, Koene T, Scheltens P, Teunissen CE, Tong T, Guerrero R, Schuh A, Ledig C, Baroni M, Rueckert D, Soininen H, Remes AM, Waldemar G, Hasselbalch SG, Mecocci P, van der Flier WM, Lötjönen J.
PMID: 29922145
Front Aging Neurosci. 2018 Apr 25;10:111. doi: 10.3389/fnagi.2018.00111. eCollection 2018.

Clinical decision support systems (CDSSs) hold potential for the differential diagnosis of neurodegenerative diseases. We developed a novel CDSS, the PredictND tool, designed for differential diagnosis of different types of dementia. It combines information obtained from multiple diagnostic tests...

Reconstitution of Vanadium Haloperoxidase's Catalytic Activity by Boric Acid-Towards a Potential Biocatalytic Role of Boron.

Chemistry (Weinheim an der Bergstrasse, Germany)

Natalio F, Wiese S, Brandt W, Wessjohann L.
PMID: 28248430
Chemistry. 2017 Apr 11;23(21):4973-4980. doi: 10.1002/chem.201605230. Epub 2017 Mar 23.

Boron's unusual properties inspired major advances in chemistry. In nature, the existence and importance of boron has been fairly explored (e.g. bacterial signaling, plant development) but its role as biological catalyst was never reported. Here, we show that boric...

Fouling behavior of silica nanoparticle-surfactant mixtures during constant flux dead-end ultrafiltration.

Journal of colloid and interface science

Trzaskus KW, Lee SL, de Vos WM, Kemperman A, Nijmeijer K.
PMID: 28738282
J Colloid Interface Sci. 2017 Nov 15;506:308-318. doi: 10.1016/j.jcis.2017.07.043. Epub 2017 Jul 15.

The increasing use of engineered nanoparticles in customer products results in their accumulation in water sources. In this experimental study, we investigated the role of surfactant type (cationic, anionic and non-ionic) and concentration on fouling development, nanoparticle rejection and...

Uncertainty analysis for the determination of B.

Applied optics

Gottwald A, Wiese K, Kroth U, Richter M.
PMID: 29047720
Appl Opt. 2017 Jul 10;56(20):5768-5774. doi: 10.1364/AO.56.005768.

The index of refraction and the extinction coefficient for thin films of boron carbide were determined by angle-dependent reflectance measurements in the vacuum-ultraviolet spectral range. The numerical approximation was done using transfer-matrix formalism in combination with particle swarm optimization...

Cerebral Blood Flow and Cognitive Functioning in a Community-Based, Multi-Ethnic Cohort: The SABRE Study.

Frontiers in aging neuroscience

Leeuwis AE, Smith LA, Melbourne A, Hughes AD, Richards M, Prins ND, Sokolska M, Atkinson D, Tillin T, Jäger HR, Chaturvedi N, van der Flier WM, Barkhof F.
PMID: 30279656
Front Aging Neurosci. 2018 Sep 18;10:279. doi: 10.3389/fnagi.2018.00279. eCollection 2018.

No abstract available.

Showing 25 to 36 of 548 entries