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2,179 Newest Publications about the topic elongation

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Investigation on the Tensile Behavior and Morphology Evolution of Isotactic Polypropylene Films Polymerized with Different Ziegler–Natta Catalysts

21-Aug-2015 | JIAN KANG, XIAODAN Li, BIJIN XIONG, DONGMING LIU, JINYAO CHEN, FENG YANG, YA CAO, MING XIANG, Advances in Polymer Technology, 2015

ABSTRACT Stereodefect distribution is very important in determining the morphology and properties of isotactic polypropylene (iPP). In this study, two iPPs (PP‐A and PP‐B) with different uniformities of stereodefect distribution were prepared. The tensile behavior and morphology evolution of ...

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Synthesis and Structures of Cyclopropanedicarboxylate Gallium Complexes

20-Aug-2015 | Roman A. Novikov; Konstantin V. Potapov; Daniil N. Chistikov; Anna V. Tarasova; Michail S. Grigoriev; Vladimir P. Ti ..., Organometallics, 2015

A series of novel gallium dimethylmalonate and cyclopropane-1,1-dicarboxylate complexes have been synthesized using gallium halides as Lewis acids. The structure and properties of the resulting complexes as well as the mechanisms of reactions involved have been studied. Some complexes have ionic ...

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Two‐in‐One Composite Fibers With Side‐by‐Side Arrangement of Silk Fibroin and Poly(l‐lactide) by Electrospinning

19-Aug-2015 | Ling Peng, Shaohua Jiang, Maximilian Seuß, Andreas Fery, Gregor Lang, Thomas Scheibel, Seema Agarwal, Macromolecular Materials and Engineering, 2015

Abstract 1D fibers of Bombyx mori silk fibroin (SF) and poly(l‐lactide) (SF‐s‐PLLA) with side‐by‐side parallel arrangement of the two components in a single fiber made by electrospinning are presented. The side‐by‐side arrangement in both randomly oriented and aligned two‐in‐one fibers was ...

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Surface modification of TiO2 nanoparticles and preparation of TiO2/PDMS hybrid membrane materials

19-Aug-2015 | Tianjian Yang, Shoushan Sang, Xiao Zhao, Ziyong Zhang, Huaxin Rao, Polymer Composites, 2015

TiO2 nanoparticles were surface‐modified by a convenient and mild sol–gel method. A novel hybrid membrane material was prepared by crosslinking reaction based on poly(dimethylsiloxane) (PDMS) as organic matrix and TiO2 nanoparticles as inorganic filler as well as a crosslinking agent. The ...

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Nanofiber Yarn/Hydrogel Core–Shell Scaffolds Mimicking Native Skeletal Muscle Tissue for Guiding 3D Myoblast Alignment, Elongation, and Differentiation

19-Aug-2015 | Ling Wang; Yaobin Wu; Baolin Guo; Peter X. Ma, ACS Nano, 2015

Designing scaffolds that can mimic native skeletal muscle tissue and induce 3D cellular alignment and elongated myotube formation remains an ongoing challenge for skeletal muscle tissue engineering. Herein, we present a simple technique to generate core–shell composite scaffolds for mimicking ...

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IJMS, Vol. 16, Pages 19671-19697: Spatial Regulation of Root Growth: Placing the Plant TOR Pathway in a Developmental Perspective

19-Aug-2015 | Barrada, Adam ; Montané, Marie-Hélène ; Robaglia, Christophe ; Menand, Benoît, International Journal of Molecular Sciences, 2015

Plant cells contain specialized structures, such as a cell wall and a large vacuole, which play a major role in cell growth. Roots follow an organized pattern of development, making them the organs of choice for studying the spatio-temporal regulation of cell proliferation and growth in plants. ...

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De novo fatty acid biosynthesis and elongation in very long‐chain acyl‐CoA dehydrogenase‐ (VLCAD‐/‐) deficient mice supplemented with odd or even medium‐chain fatty acids

18-Aug-2015 | Sara Tucci, Sidney Behringer, Ute Spiekerkoetter, FEBS Journal, 2015

Abstract An even medium‐chain‐triglyceride (MCT)‐based diet is mainstay of treatment in very‐long chain acyl‐CoA dehydrogenase‐deficiency (VLCADD). Previous studies with magnetic resonance spectroscopy showed an impact of MCT on the average fatty acids chain length in abdominal fat. We ...

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Identification of a functional hotspot on ubiquitin required for stimulation of methyltransferase activity on chromatin [Biochemistry]

18-Aug-2015 | Matthew T. Holt; Yael David; Sam Pollock; Zhanyun Tang; Jongcheol Jeon; Jaehoon Kim; Robert G. Roeder; Tom W. Muir, Proceedings of the National Academy of Sciences current issue, 2015

Ubiquitylation of histone H2B at lysine 120 (H2B-Ub) plays a critical role in transcriptional elongation, chromatin conformation, as well as the regulation of specific histone H3 methylations. Herein, we report a strategy for the site-specific chemical attachment of ubiquitin to preassembled ...

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Concerted Protein and Nucleic Acid Conformational Changes Observed Prior to Nucleotide Incorporation in a Bacterial RNA Polymerase: Raman Crystallographic Evidence

18-Aug-2015 | Ioanna H. Antonopoulos; Brittany A. Warner; Paul R. Carey, Biochemistry, 2015

Transcription elongation requires the continuous incorporation of ribonucleotide triphosphates into a growing transcript. RNA polymerases (RNAPs) are able to processively synthesize a growing RNA chain via translocation of the RNAP enzyme along its nucleic acid template strand after each ...

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Enhancing Mechanical Properties of TiZrAlV by Engineering a Multi‐Modal‐Laminated Structure

17-Aug-2015 | Yindong Shi, Lina Wang, Ming Li, Guosheng Zhang, Defeng Guo, Xiangyi Zhang, Advanced Engineering Materials, 2015

In the present study, microstructure and mechanical properties of a new β‐metastable TiZrAlV prepared via thermomechanical processing (TMP) treatments have been studied. An excellent combination of ultimate tensile strength (σb ≈ 1 630 MPa) and ductility (ϵf ≈ 6.6%) has been achieved in the ...

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