(C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 2232-2237, 2009″
“In this paper we discuss an experimental method based on the ac susceptibility for measuring the effective SN-38 transverse resistivity in multifilament NbTi wires designed for low loss applications. Short samples of wire are involved in the measurements, with lengths comparable with the twist pitch. The measured values of the transverse resistivity are compared to expectations coming from a model based on a numerical approach.

(C) 2009 American Institute of Physics. [doi: 10.1063/1.3234378]“
“A method using a combination of ball milling, acid hydrolysis, and ultrasound was developed to obtain a high yield of cellulose nanofibers from flax fibers and microcrystalline cellulose (MCC). Polyvinyl alcohol) (PVA) nanocomposites were prepared with these additives by a solution-casting technique. The cellulose nanofibers and nanocomposite films that were produced were characterized with Fourier transform infrared spectrometry, X-ray

diffraction, thermogravimetric analysis, scanning electron microscopy, and transmission electron microscopy. Nanofibers derived from MCC were on average approximately 8 nm in diameter and 111 nm in length. The diameter of the cellulose nanofibers produced from flax fibers was approximately 9 nm, and the length was find more 141 nm. A significant enhancement of the thermal and mechanical properties was achieved with a small addition of cellulose nanofibers to the polymer matrix. Interestingly, the flax nanofibers had the same reinforcing effects as MCC nanofibers in the matrix. Dynamic mechanical https://www.selleckchem.com/products/ro-3306.html analysis results indicated that the use of cellulose nanofibers (acid hydrolysis) induced a mechanical percolation phenomenon leading to outstanding and unusual mechanical properties through the formation of a

rigid filler network in the PVA matrix. X-ray diffraction showed that there was no significant change in the crystallinity of the PVA matrix with the incorporation of cellulose nanofibers. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 2238-2247, 2009″
“Objective: To describe the diagnostic performance of array comparative genomic hybridization (aCGH) as a potential first line diagnostic method in first trimester high risk pregnancies.

Method: In a retrospective study we performed aCGH using a targeted array BAC platform (Constitutional Chip (R) 4.0, PerkinElmer, Turku Finland, median resolution 600 kB) and the Affymetrix Cytogenetics (R) Whole Genome 2.7 M array (at a resolution of 400kB) on 100 anonymized prenatal samples from first trimester high risk pregnancies with normal conventional karyotype. We studied the technical feasibility and turn-around-time as well as the detection rate of pathogenic submicroscopic chromosome anomalies and CNVs of unknown significance.

Results: We obtained results in 98 of 100 samples in 3 to a maximum of 5 days after DNA extraction.