Articles with "sem" as a keyword



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Soil Organic Carbon and Carbonates are Binding Phases for Simultaneously Extractable Metals (SEM) in Calcareous Saltmarsh Soils.

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Published in 2019 at "Environmental toxicology and chemistry"

DOI: 10.1002/etc.4590

Abstract: The aptness of the ∑SEM/AVS (Simultaneously Extracted Metals/Acid Volatile Sulfides) index to ascertain environmental risk from potentially toxic elements in calcareous saltmarsh soils was tested using Structural Equation Modelling. This technique allows to detect both… read more here.

Keywords: carbon; labile organic; sem; carbon carbonates ... See more keywords
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Morpho‐anatomical characters of family Oscillatoriaceae (algae) identified using primitive (LM) and advance technique (SEM) from Punjab, Pakistan

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Published in 2022 at "Microscopy Research and Technique"

DOI: 10.1002/jemt.24195

Abstract: In this study, 34 species belonging to the class Nostocophyceae order Nostocales and family Oscillatoriaceae were identified based on light microscopy (LM) and scanning electron microscopy (SEM). All species belong to nine genera of which… read more here.

Keywords: family oscillatoriaceae; morpho anatomical; microscopy; anatomical characters ... See more keywords
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Scanning Electron Microscopy (SEM) and Immuno-SEM of Nuclear Pore Complexes from Amphibian Oocytes, Mammalian Cell Cultures, Yeast, and Plants.

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Published in 2022 at "Methods in molecular biology"

DOI: 10.1007/978-1-0716-2337-4_27

Abstract: Scanning electron microscopy (SEM) can be used to image nuclear pore complex (NPC) surface structure of from a number of organisms and model systems. With a field emission SEM , this is a medium resolution… read more here.

Keywords: nuclear pore; microscopy; microscopy sem; sem ... See more keywords
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Three-dimensional architecture of a mechanoreceptor in the brown planthopper, Nilaparvata lugens, revealed by FIB-SEM

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Published in 2019 at "Cell and Tissue Research"

DOI: 10.1007/s00441-019-03122-7

Abstract: Trichoid sensilla are the most common mechanoreceptors in insects; depending on their distribution, they can act as either exteroceptors or proprioceptors. In this study, the internal structure of the trichoid sensillum from Nilaparvata lugens was… read more here.

Keywords: three dimensional; fib sem; sem; nilaparvata lugens ... See more keywords
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Risk assessment of heavy metals in Vembanad Lake sediments (south-west coast of India), based on acid-volatile sulfide (AVS)-simultaneously extracted metal (SEM) approach

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Published in 2017 at "Environmental Science and Pollution Research"

DOI: 10.1007/s11356-017-0997-8

Abstract: Contamination of estuarine system due to heavy metals is a severe issue in tropical countries, especially in India. For the evaluation of the risk due to heavy metals, the current study assessed spatial and temporal… read more here.

Keywords: sulfide; sem; acid volatile; metal ... See more keywords
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Redescription of Xenodasys riedli (Gastrotricha: Macrodasyida) based on SEM analysis, with first report of population density data

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Published in 2017 at "Marine Biodiversity"

DOI: 10.1007/s12526-017-0667-6

Abstract: During surveys of the Gastrotricha of the Tropical Northwestern Atlantic (TNWA, Caribbean Sea), we came across numerous specimens of the uncommon macrodasyidan, Xenodasys riedli (Xenodasyidae). Abundance data on gastrotrichs is rare and entirely absent for… read more here.

Keywords: sem; xenodasys riedli; riedli; redescription xenodasys ... See more keywords
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SEM-EDS nanoanalysis of mineral composite materials: A Monte Carlo approach

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Published in 2020 at "Composite Structures"

DOI: 10.1016/j.compstruct.2020.113227

Abstract: Abstract A quantitative determination of chemical and mineral composition at the nanoscale is nowadays fundamental for the knowledge of properties of innovative composite materials. Scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectrometry (EDS)… read more here.

Keywords: eds nanoanalysis; sem; sem eds; monte carlo ... See more keywords
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Dental cementum examination with SEM/EDX for unraveling details along the lifeline to assist identification of a female individual.

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Published in 2021 at "Forensic science international"

DOI: 10.1016/j.forsciint.2021.111103

Abstract: In this work, we present a novel approach of forensic examination of the dental cementum by Scanning Electron Microscopy (SEM) as an imaging tool, complemented by semiquantitative elemental analysis of the incremental lines with an… read more here.

Keywords: examination; dental cementum; cementum; sem ... See more keywords
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Low-voltage SEM of air-sensitive powders: From sample preparation to micro/nano analysis with secondary electron hyperspectral imaging.

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Published in 2022 at "Micron"

DOI: 10.1016/j.micron.2022.103234

Abstract: Powder materials are used in all corners of materials science, from additive manufacturing to energy storage. Scanning electron microscopy (SEM) has developed to meet morphological, microstructural and bulk chemical powder characterization requirements. These include nanoscale… read more here.

Keywords: chemistry; analysis; spectroscopy; sem ... See more keywords
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Development of an SEM image analysis method to characterize intumescent fire retardant char layer

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Published in 2020 at "Progress in Organic Coatings"

DOI: 10.1016/j.porgcoat.2019.105461

Abstract: Abstract A new characterization method is proposed to investigate the microscopic morphology of intumescent fire retardant (IFR) char layer observed under a scanning electron microscope (SEM). The method consists of object segmentation extracting the object,… read more here.

Keywords: char layer; sem; layer; method ... See more keywords
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Optimizing MC-ICP-MS with SEM protocols for determination of U and Th isotope ratios and 230Th ages in carbonates

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Published in 2019 at "Quaternary Geochronology"

DOI: 10.1016/j.quageo.2018.10.003

Abstract: Abstract We have optimized techniques to measure uranium and thorium isotopic compositions using secondary electron multiplier (SEM) and peak-jumping protocols on a multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS, Thermo Scientific Neptune Plus). This instrument… read more here.

Keywords: icp sem; protocols determination; sem; determination isotope ... See more keywords