Academic literature on the topic 'Polarized Light Microscopic (PLM) analysis'

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Journal articles on the topic "Polarized Light Microscopic (PLM) analysis"

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Reffner, John A., and William T. Wihlborg. "Microanalysis of Asbestos Fibers by Ft-IR Microscopy." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 2 (1990): 298–99. http://dx.doi.org/10.1017/s0424820100135095.

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The identification of asbestos fibers in bulk or airborne samples can be made by Fourier transform infrared (FT-IR) microscopy. Since asbestos fibers have been shown to be a health hazard, it is important to identify their presence in environmental samples. Asbestos fibers require both chemical and morphological data for their identification. This FT-IR microscopical method uses light microscopy for morphological and infrared spectroscopy for chemical identity of microscopic fibers. For the six minerals defined by the EPA as asbestos, the infrared spectral analysis can be made on the same samp
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Carlton, R. A. "Microscopy in Pharmaceutical Development." Microscopy and Microanalysis 4, S2 (1998): 478–79. http://dx.doi.org/10.1017/s1431927600022510.

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Many different microscopic techniques are utilized in the development of new pharmaceuticals. For that reason, pharmaceutical companies have supported microscopy and microscopists even in the face of retrenchments in many other industries. Microscopy has the following three major uses in pharmaceutical development: 1) solid-state characterization of drug substance; 2) particle size analysis; 3) contaminant identification. Microscopy is also an important component of the study of the biological activity of drugs but that subject will not be discussed here.The analysis of the solid-state propert
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Millette, J. R., P. Few, and T. J. Hopen. "Microscopical Examination of Indoor Dusts." Microscopy and Microanalysis 4, S2 (1998): 476–77. http://dx.doi.org/10.1017/s1431927600022509.

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Several case studies are shown as examples of the results of analyses using various microscopical instruments to characterize the particles in building dusts. Characterizing the particles and identifying possible sources of particles in dusts are often important parts of solving indoor indoor air quality (IAQ) and environmental problems. Samples of the dust particles can be collected by filtering the air with cassette air filters or by gathering the dust that has accumulated on surfaces. Depending on the size and types of particles in the dust either polarized light microscopy (PLM), scanning
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Park, J. I. "Complementary Analysis Using Polarized Light and Scanning Electron Microscopy in the Determination of Sulfate Attack on Concrete." Microscopy and Microanalysis 3, S2 (1997): 759–60. http://dx.doi.org/10.1017/s1431927600010680.

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A high water to cement ratio in concrete produces excessive porosity in the paste, thereby increasing the concrete’s susceptibility to sulfate attack and subsequent premature deterioration. Widely used as a building material, concrete experiences physical and chemical deterioration whose extent and nature may be determined by polarized light microscopy (PLM) and scanning electron microscopy (SEM). New software innovations allow exact image relocation in PLM and SEM, thereby producing complementary information which aids in analyst recognition and increases the effectiveness of each analytical
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Caamaño, J. N., M. Catalá, R. Romaguera, et al. "257 DETECTION OF MICROTUBULES BY POLARIZED LIGHT MICROSCOPY IN SHEEP AND GOAT OOCYTES." Reproduction, Fertility and Development 23, no. 1 (2011): 226. http://dx.doi.org/10.1071/rdv23n1ab257.

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The meiotic spindle in the oocyte is composed of microtubules and plays a key role in normal chromosome alignment and segregation during meiosis. In oocytes from farm animals, the meiotic spindle cannot be detected by conventional light microscopy due to the characteristic of their cytoplasm. Conventional methods to image the meiotic spindle rely on fixation of the oocytes. Polarized light microscopy (PLM) allows noninvasive evaluation of the meiotic spindle of metaphase oocytes. The aim of this study was to assess the efficiency of polarized light microscopy to detect microtubule-polymerized
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Zhang, Su Feng, and Chun Lei Kang. "Crystal Structure Analysis on Aramid Fiber/Fibrids and Paper by Polarized Light Microscopy." Key Engineering Materials 531-532 (December 2012): 636–39. http://dx.doi.org/10.4028/www.scientific.net/kem.531-532.636.

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The crystal structure of aramid fibers is highly orientated. The structure of aramid fibers with various manufacturing processes and aramid paper sheets were analyzed and observed by using polarized light microscope (PLM). The change and its law of aramid fiber crystal structure in such processes as aramid fiber mamufaturing of aramid fiber/fibrids, forming of aramid paper sheets, and heat treatment were analysed. The relationship between the structural feature of aramid fibers and the performance of aramid paper was also discussed.
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Assis, S., A. Keenleyside, and A. L. Santos. "Beyond the visible world: the role of microscopy in the study of past human conditions." Microscopy and Microanalysis 19, S4 (2013): 41–42. http://dx.doi.org/10.1017/s1431927613000822.

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Paleopathology, summarily defined as the study of past diseases, has on the differential diagnosis a major challenge. Histological techniques offered the possibility to look inside the microstructure of both normal and abnormal body tissues to diagnose diseases that affected past populations, leading to the development of a new field of research - paleohistology or paleohistopathology. However, and contrary to paleopathology whose journey is well-established, in paleohistopathology there are many gaps that need to be filled. This occurrence is probably the result of a nonsystematic and non-sta
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Millette, James R. "Reference Methods For Analyzing For Asbestos In Various Media." Microscopy Today 3, no. 10 (1995): 10–11. http://dx.doi.org/10.1017/s1551929500065640.

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Microscopy remains the primary tool for the analysis and quantification of asbestos in occupational and environmental studies. The American Society for Testing and Materials (ASTM) has recently approved two new Standard Methods for the analysis of asbestos in settled dust. Both methods require the use of a transmission electron microscope (TEM) equipped with an energy dispersive x-ray analysis system. Other methods curently in use require the use of a polarized light microscope {PLM) or phase contrast microscope (PCM).
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Neilly, J. P., J. S. Deng, J. L. House, and J. A. Fagerland. "Morphological Characterization of a Sustained-Release Drug Implant by Scanning Electron Microscopy, Polarized Light Microscopy and Image Analysis." Microscopy and Microanalysis 4, S2 (1998): 932–33. http://dx.doi.org/10.1017/s1431927600024788.

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Septacin is a sustained-release antibiotic currently under development by the Hospital Products Division of Abbott Laboratories. The product is designed to be used as an anti-infective implant in orthopedic surgical procedures with a sustained drug release for up to six weeks in vivo. It consists of gentamicin sulfate formulated with a bioerodable polyanhydride copolymer. The polymer is biodegradable and has been approved by the FDA for human clinical trials. The final product is obtained by mixing 20% gentamicin sulfate with molten polymer and injection molding it to form cylindrical Septacin
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Polzer, Stanislav, T. Christian Gasser, Caroline Forsell, et al. "Automatic Identification and Validation of Planar Collagen Organization in the Aorta Wall with Application to Abdominal Aortic Aneurysm." Microscopy and Microanalysis 19, no. 6 (2013): 1395–404. http://dx.doi.org/10.1017/s1431927613013251.

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AbstractArterial physiology relies on a delicate three-dimensional (3D) organization of cells and extracellular matrix, which is remarkably altered by vascular diseases like abdominal aortic aneurysms (AAA). The ability to explore the micro-histology of the aorta wall is important in the study of vascular pathologies and in the development of vascular constitutive models, i.e., mathematical descriptions of biomechanical properties of the wall. The present study reports and validates a fast image processing sequence capable of quantifying collagen fiber organization from histological stains. Po
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Dissertations / Theses on the topic "Polarized Light Microscopic (PLM) analysis"

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Devaki, Sudha J., Neethu K. Sadanandhan, Renjith Sasi, Hans-Juergen P. Adler, and Andrij Pich. "Water dispersible electrically conductive poly(3,4- ethylenedioxythiophene) nanospindles by liquid crystalline template assisted polymerization." Royal Society of Chemistry, 2014. https://tud.qucosa.de/id/qucosa%3A36259.

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In this work, we demonstrate an inimitable liquid crystalline template strategy for the preparation of water dispersible electrically conducting poly(3,4-ethylenedioxythiophene) nanospindles (PEDOTSs). PEDOTSs were formed during the polymerization of the spindle shaped liquid crystalline phase of “EDOT–PDPSA” which was formed by the specific interactions of 3,4-ethylenedioxythiophene (EDOT) with 3-pentadecyl phenol-4-sulphonic acid (PDPSA). Liquid crystalline phases were characterized by Polarized Light Microscopic (PLM) analyses, rheology and XRD. Morphology and solid state ordering of conduc
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Books on the topic "Polarized Light Microscopic (PLM) analysis"

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Glazov, M. M. Interaction of Spins with Light. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198807308.003.0006.

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This chapter presents the details of the optical manipulation of electron spin states. It also addresses manifestations of the electron and nuclear spin dynamics in optical response of semiconductor nanostructures via spin-Faraday and -Kerr effects. Coupling of spins with light provides the most efficient method of nonmagnetic spin manipulation. The main aim of this chapter is to provide the theoretical grounds for optical spin injection, ultrafast spin control, and readout of spin states by means of circularly and linearly polarized light pulses. The Faraday and Kerr effects induced by the el
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Book chapters on the topic "Polarized Light Microscopic (PLM) analysis"

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Benning, Kai, Miriam Menzel, Jan André Reuter, and Markus Axer. "Independent Component Analysis for Noise and Artifact Removal in Three-Dimensional Polarized Light Imaging." In Lecture Notes in Computer Science. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-82427-3_7.

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AbstractIn recent years, Independent Component Analysis (ICA) has successfully been applied to remove noise and artifacts in images obtained from Three-dimensional Polarized Light Imaging (3D-PLI) at the mesoscale (i.e., 64 $$\upmu $$ μ m). Here, we present an automatic denoising procedure for gray matter regions that allows to apply the ICA also to microscopic images, with reasonable computational effort. Apart from an automatic segmentation of gray matter regions, we applied the denoising procedure to several 3D-PLI images from a rat and a vervet monkey brain section.
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Conference papers on the topic "Polarized Light Microscopic (PLM) analysis"

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Mago, Gaurav, Jerry A. Dutreuil, Frank T. Fisher, and Dilhan M. Kalyon. "Effect of Uniaxial Deformation, Annealing and Carbon Nanotubes on the Morphology and Mechanical Properties of Poly (Butylene Terephthalate) and PBT Nanocomposites." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41977.

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The goal of this investigation is to elucidate the interrelations between the strain-induced crystallization behavior, morphology and mechanical properties of poly (butylene terephthalate) PBT and its nanocomposites with multi-walled carbon nanotubes (MWNTs). The mechanical properties of semicrystalline polymers such as PBT depend upon the processing conditions, which affect the crystallization behavior and the resulting crystal morphology developed within the processed sample. PBT is observed to undergo strain-induced crystallization during uniaxial deformation, with concomitant changes in th
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Cho, Myoung-Ock, Hyo Mi Chang, Yeon Gyu Yu, Hwataik Han, and Jung Kyung Kim. "Selective and Automated Detection of Airborne Asbestos Fibers Using Chrysotile-Adhesive Protein and High-Throughput Microscopy (HTM)." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63721.

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There are several methods to detect asbestos including phase contrast microscopy (PCM), polarized light microscopy, X-ray diffraction, and electron microscopy. Although the PCM method is widely used due to its simple process and relatively low cost, it is a time-consuming and laborious process that is manually performed by a human counter. We developed a high-throughput microscopy (HTM) system for automated counting of airborne asbestos fibers to automate the conventional PCM method. Our results show that automatic image acquisition by synchronization of charge-coupled device (CCD) camera with
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