Microscopic imaging of human bloodstains: testing the potential of a confocal laser scanning microscope as an alternative to SEMs
Publication date: Available online 30 December 2019Source: MicronAuthor(s): Policarp HortolàAbstractThe forensic interest on human bloodstains derives from their relation to crime investigation, whereas an archaeological and ethnographic concern arises from their occurrence because of warfare and ritual. The development of digital reflected light microscopes provided an opportunity to use ligh microscopy to study surface topographies in a more accurate way than previously. However, this enhancement has been focused on increasing magnification rather than resolution. An advanced type of light microscope is the confocal las...
Source: Micron - December 31, 2019 Category: Biology Source Type: research
Life and its Traces in Antarctica’s McMurdo Dry Valley Paleolakes: A Survey of Preservation
Publication date: Available online 30 December 2019Source: MicronAuthor(s): Samuel R. Greenfield, Scott W. Tighe, Yu Bai, David S. Goerlitz, Michele Von Turkovich, Douglas J. Taatjes, Julie A. Dragon, Sarah Stewart JohnsonAbstractThe extremely cold and arid conditions of Antarctica make it uniquely positioned to investigate fundamental questions regarding the persistence of life in extreme environments. Within the McMurdo Dry Valleys and surrounding mountain ranges are multiple ancient relict lakes, paleolakes, with lacustrine deposits spanning from thousands to millions of years in age. Here we present data from light mic...
Source: Micron - December 31, 2019 Category: Biology Source Type: research
Mechanism of Yttrium composite inclusions on the localized corrosion of pipeline steels in NaCl solution
Publication date: Available online 30 December 2019Source: MicronAuthor(s): Yanhui Hou, Tengfei Li, Guangqiang Li, Changgui Cheng (Source: Micron)
Source: Micron - December 31, 2019 Category: Biology Source Type: research
Anti-degranulation response of herbal formula in RBL-2H3 cells
In this study, the anti-degranulation activity of herbal formula was evaluated using the rat basophil leukemia cells (RBL-2H3) as in vitro model. The morphological and biophysical properties of RBL-2H3 cells before and after treatment with herbal formula were also determined. Notably, the herbal formula exhibits clearly inhibited degranulation by RBL-2H3 cells in a concentration-dependent manner without cytotoxic effect. Therefore, this herbal formula can be used as an alternative and promising therapeutic agent to ameliorate allergic diseases. (Source: Micron)
Source: Micron - December 29, 2019 Category: Biology Source Type: research
Image reconstruction for sub-sampled atomic force microscopy images using deep neural networks
Publication date: Available online 26 December 2019Source: MicronAuthor(s): Yufan Luo, Sean B. AnderssonAbstractUndersampling is a simple but efficient way to increase the imaging rate of atomic force microscopy (AFM). One major challenge in this approach is that of accurate image reconstruction from a limited number of measurements. In this work, we present a deep neural network (DNN) approach to reconstruct μ-path sub-sampled AFM images. Our network consists of two sub-networks, namely a RED-net and a U-net, in series, and is trained end-to-end from random images masked according to μ-path sub-sampling patterns. Using ...
Source: Micron - December 27, 2019 Category: Biology Source Type: research
Synthesized Bioadsorbent from Fish Scale for Chromium (III) Removal
Publication date: Available online 27 December 2019Source: MicronAuthor(s): Firomsa Teshale, R. Karthikeyan, Omprakash SahuAbstractPresence of heavy metal in industrial wastewater is hazardous to the surrounding environment. Biosorption of heavy metal is an effective technology for the treatment of industrial wastewater. This research work has been carried out on removal of chromium (III) metal ions by employing waste fish scales as bioadsorbent. A batch adsorption process was carried out with different adsorbent dosage, solution pH and contact time. The results show the highest 99.7518 % chromium (III) metal ions at bioad...
Source: Micron - December 27, 2019 Category: Biology Source Type: research
A review of sample thickness effects on high-resolution transmission electron microscopy imaging
Publication date: Available online 23 December 2019Source: MicronAuthor(s): Shouqing Li, Binghui GeAbstractHigh-resolution transmission electron microscopy (HRTEM) is an important approach to analyzing material structures. However, in reality, preparing a sufficiently thin sample for use in HRTEM, based on which images could be interpreted by weak phase object approximation theory, is difficult. During the imaging process, the thickness of the sample has two primary effects—a dynamical effect and a non-linear effect. Both are reviewed in this paper. Considering only the dynamical effect, the Bloch wave method and multisl...
Source: Micron - December 24, 2019 Category: Biology Source Type: research
Fine structure of mouthparts and forelegs of Euplatypus parallelus (Coleoptera: Curculionidae) with emphasis on the behavior of gallery excavation
Publication date: Available online 20 December 2019Source: MicronAuthor(s): Gaoke Lei, Yueguan Fu, Weijian WuAbstractEuplatypus parallelus (F.) (Coleoptera: Curculionidae) is one of the most invasive species of all the Platypodinae. It penetrates the xylem and oviposits in its host trees thereby weakening the trunk causing them to break under extreme conditions. Since the beetle has evolved effective drilling mouthparts enough to make wood tunnels, we used a field emission scanning electron microscopy to describe the sexual difference in mouthparts and forelegs morphology of the beetle. E. parallelus has chewing type mouth...
Source: Micron - December 21, 2019 Category: Biology Source Type: research
Structural and microstructural study of novel stacked toroidal carbon nanotubes
Publication date: Available online 21 December 2019Source: MicronAuthor(s): Maciej Gubernat, Marcel Zambrzycki, Aneta Fraczek-Szczypta, Stanislaw BlazewiczAbstractThe work presents a new carbon nanostructure in the form of stacked toroidal carbon nanotubes (STCNT) crystallized from the gas phase through a catalyst-free deposition process. Vapor-grown STCNT were obtained on a graphite substrate using methane as a source of carbon. The carbon structure was analyzed using Transmission Electron Microscopy (TEM), Scanning Electron Microscopy with Energy Dispersive X-ray Spectroscopy (SEM/EDX), Raman spectroscopy, X-ray Diffract...
Source: Micron - December 21, 2019 Category: Biology Source Type: research
Estimation of systematic errors committed when approximating length of grain boundaries using edges of rectangular or hexagonal grids of EBSD maps
Publication date: Available online 19 December 2019Source: MicronAuthor(s): Piotr BobrowskiAbstractA method for calculating the overestimation error of grain boundary (GB) length committed when approximating a straight segment of a GB using edges of rectangular or hexagonal grid was given. The relative errors range from 0% to 41.42% and from 15.47% to 33.33%, for the square and hex grids, respectively. The average error values for both kinds of meshes are the same, namely, 27.32%. Comparison of the mathematical calculations with experimental results obtained from Electron Backscatter Diffraction (EBSD) data, indicated that...
Source: Micron - December 20, 2019 Category: Biology Source Type: research
Editorial Board
Publication date: February 2020Source: Micron, Volume 129Author(s): (Source: Micron)
Source: Micron - December 18, 2019 Category: Biology Source Type: research
Advanced blood flow assessment in Zebrafish via experimental digital particle image velocimetry and computational fluid dynamics modeling
Publication date: Available online 14 December 2019Source: MicronAuthor(s): Huseyin Enes Salman, Huseyin Cagatay YalcinAbstractOver the past few decades, Zebrafish has become a widely used vertebrate model for cardiovascular research. Easy genetic manipulation, low cost, high fecundity, embryonic transparency, and ability to survive in the early stages of development without active circulation are among the advantages of Zebrafish. Cardiac malformations can be induced through genetic manipulations for elucidating the influence of mechanobiological stimuli on the development and progress of the cardiovascular diseases. For ...
Source: Micron - December 15, 2019 Category: Biology Source Type: research
Telencephalon Cytoarchitecture of Tsinling Dwarf Skinks (Scincella Tsinlingensis)
Publication date: Available online 10 December 2019Source: MicronAuthor(s): Chun Yang, Lin Li, Zhaoting Kou, Huihui Zhang, Limin Wang, Yu Zhao, Niu ZhuAbstractThe telencephalon of adult Scincella tsinlingensis was detected by light and electron microscopy, which will be used as the basis for further neurobiological comparative studies. The telencephalon of S. tsinlingensis was consisted of paired olfactory bulbs, paired cerebral hemispheres, and a telencephalon medium or impar. Main-olfactory bulb can be classified into six layers such as olfactory nerve fibers layer, glomerular layer, external plexiform layer, mitral laye...
Source: Micron - December 11, 2019 Category: Biology Source Type: research
Automatic Microscopic Image Analysis by Moving Window Local Fourier Transform and Machine Learning
Publication date: Available online 11 December 2019Source: MicronAuthor(s): Benedykt R. Jany, Arkadiusz Janas, Franciszek KrokAbstractAnalysis of microscope images is a tedious work which requires patience and time, usually done manually by the microscopist after data collection. The results obtained in such a way might be biased by the human who performed the analysis. Here we introduce an approach of automatic image analysis, which is based on locally applied Fourier Transform and Machine Learning methods. In this approach, a whole image is scanned by a local moving window with defined size and the 2D Fourier Transform i...
Source: Micron - December 11, 2019 Category: Biology Source Type: research
Investigation of Hydrated Smectite Microstructure through Wet Environmental Transmission Electron Microscopy
Publication date: Available online 9 December 2019Source: MicronAuthor(s): Ryosuke Kagawa, Yuma Kuwamura, Wen-An Chiou, Stephan Kaufhold, Reiner Dohrmann, Hiroki MinodaAbstractWater is an essential constituent of all biological materials as well as many non-biological materials. Not only the removal of water may result in undesirable morphological and structure change, the inability to sustain the hydrated conditions in the microscope also prevents the study of reactions which take place in aqueous environment. In order to overcome these problems we used wet environmental-cell transmission electron microscopy TEM (WETEM). ...
Source: Micron - December 9, 2019 Category: Biology Source Type: research
