Article
Chemistry, Physical
Iztok Naglic, Blaz Leskovar, Zoran Samardzija, Bostjan Markoli
Summary: This study investigated the influence of gallium addition on the phases formed in Al-Mn alloys during casting, revealing that an increase in gallium content led to the formation of IQCs and DQCs in the alloys. Microanalysis showed that IQCs contained more gallium and less manganese compared to DQCs.
Article
Chemistry, Physical
Bernadette Domenges, Mayerling Martinez Celis, Florent Moisy, Jacques Lacaze, Babette Tonn
Summary: This study investigates the impact of trace impurities on the nodularity of spheroidal graphite cast irons during manufacturing, revealing the presence of impurities at the interface between the spheroid and protrusion alongside magnesium. Using Focused Ion Beam and atomic resolution scanning-transmission electron microscopy, it is shown that impurities can disrupt the spheroidizing effect of magnesium without a definite crystallographic relationship between protrusions and underlying spheroids.
Article
Biochemical Research Methods
Tong Xin, Yanan Lv, Haoran Chen, Linlin Li, Lijun Shen, Guangcun Shan, Xi Chen, Hua Han
Summary: This article proposes a new method for serial section registration using an unsupervised optical flow network to measure feature similarity and eliminate nonlinear deformation. The optical flow network is also used to estimate and compensate for cumulative registration error, enabling the reconstruction of biological tissue structures. Experimental results demonstrate that this method effectively improves the spatial continuity of serial sections and enhances the accuracy of registration and reconstruction for biological tissue structures.
Article
Biochemistry & Molecular Biology
Marta Z. Pacia, Natalia Chorazy, Magdalena Sternak, Benedikt Fels, Michal Pacia, Mariusz Kepczynski, Kristina Kusche-Vihrog, Stefan Chlopicki
Summary: In this study, the role of Rac1 in TNF-induced vascular inflammation was investigated. It was found that Rac1 mediated the formation of lipid droplets and nanostructural alterations associated with vascular inflammation.
CELLULAR AND MOLECULAR LIFE SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Katsuyoshi Kondoh, Rei Takei, Shota Kariya, Shufeng Li, Junko Umeda
Summary: The effect of Mg2Ca precipitate on the local galvanic corrosion behavior of Mg-Ca alloy was quantitatively evaluated using scanning Kelvin probe force microscopy to measure the surface potential difference between Mg2Ca and alpha-Mg matrix. In a saltwater immersion test, discontinuous Mg2Ca precipitates acted as anodes and eroded significantly compared to the matrix.
Article
Materials Science, Multidisciplinary
J. C. Lourenco, L. P. Souza, M. I. S. T. Faria, C. A. Nunes, C. R. Tomachuk, M. A. Baker
Summary: In this study, Inconel 625 based alloys with different iron contents were prepared and their corrosion behavior in 3.5% NaCl was investigated. It was found that alloys with 10-15% iron showed improved corrosion behavior, potentially enabling faster and more economical welding processes.
Article
Neurosciences
James Hyun, Monica Lee, Jalees Rehman, Kostandin Pajcini, Asrar B. Malik
Summary: This study focused on investigating the potential pathways of Notch signalling in mediating vascular regeneration in mouse models. The researchers found that Notch signalling plays a crucial role in promoting well-ordered vascular regeneration through the downstream generation of guidance peptides such as SEM3g.
JOURNAL OF PHYSIOLOGY-LONDON
(2022)
Article
Neurosciences
James Hyun, Monica Lee, Jalees Rehman, Kostandin V. Pajcini, Asrar B. Malik
Summary: We genetically and functionally studied the potential pathways of Notch signalling in mediating vascular regeneration in mouse models. Our findings demonstrate the central role of Notch signalling in vascular endothelial cells and the involvement of SEMA3G as a downstream guidance factor in the reperfusion process mediated by Notch.
JOURNAL OF PHYSIOLOGY-LONDON
(2022)
Article
Chemistry, Physical
Hsin-Li Liang, Che-Wei Tsai, Sheng Guo
Summary: This study successfully designed corrosion-resistant CoCrFeMoNi HEAs with single-phase structure using two strategies, and validated the effectiveness of these methods through thermal stability. The corrosion resistance of these HEAs was found to be competitive compared to Hastelloy C276.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemical Research Methods
Thomas Waelchli, Jeroen Bisschop, Arttu Miettinen, Alexandra Ulmann-Schuler, Christoph Hintermueller, Eric P. Meyer, Thomas Krucker, Regula Waelchli, Philippe Monnier, Peter Carmeliet, Johannes Vogel, Marco Stampanoni
Summary: The method described allows for hierarchical imaging and computational analysis of vascular networks in postnatal and adult mouse brains, providing detailed visualization and quantification of the 3D brain vasculature. This approach enables characterization of brain vascular networks separately for capillaries and noncapillaries, and the entire protocol takes around 10 days from mouse perfusion to vessel network analysis.
Article
Chemistry, Physical
P. Bhuyan, M. Paliwal, V. Subramanya Sarma, B. de Boer, R. Mitra, S. Mandal
Summary: In this systematic study on a Ni-based superalloy, it was found that the evolution of precipitates during aging significantly affects the high-temperature hot corrosion performance. The improved corrosion resistance was attributed to the rapid formation of oxide layer and the presence of undissolved carbides at grain boundaries, which hindered the inward transport of corrosive species.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Mingjun Yang, Kai Li, Haonan Chen, Jicheng Wang, Zhuo Zhang, Ning Yan, Qiang Lu, Xinyue Lan, Tong Yang, Ying Zhang, Gunan Li, Shuyan Zhang, Yong Du
Summary: This study investigated the corrosion process of MgSi nano-precipitates in an Al-Mg-Si alloy using transmission electron microscopy. It was found that coarsened beta' precipitates in the over-aged state were corroded through dissolution of Mg and oxidation of Si, transforming into amorphous SiO2 precipitates. This newly discovered crystalline-to-amorphous phase transformation plays a role in intragranular corrosion behavior, explaining the reduced susceptibility of over-aged Al-Mg-Si alloys to pitting and intergranular corrosion.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
G. B. Mazzei, M. G. Burke, D. A. Horner, F. Scenini
Summary: Pb-Caustic Stress Corrosion Cracking initiation was studied on Alloy 690TT at 315 degrees C. The cracking mainly initiated intergranularly following the oxidation of Cr-rich grain boundary carbides. The as-received surfaces showed higher resistance to crack nucleation compared to polished ones due to the absence of carbide decoration on the grain boundaries in the ultrafine-grained near-surface layer. Dislocation entanglements on the cold-worked surface attenuated the emission of dislocations at the surface. Subsequent cracking was caused by Pb incorporation in the oxide, weakening the passive layer and enhancing slip dissolution.
Article
Materials Science, Ceramics
Christian Thieme, Katrin Thieme, Richard Busch, Bernhard Fleischmann, Christian Ruessel
Summary: This study compared three types of AZS materials using X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray analysis. The results showed that untreated AZS contained monoclinic ZrO2 and Al2O3, thermally treated AZS showed the presence of mullite, and thermally cycled AZS had an increased concentration of mullite and a small concentration of tetragonal ZrO2. Additionally, tiny monoclinic ZrO2 crystals were embedded within the mullite and Al2O3 crystals.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Sandra Ahlers, Benjamin Bittner, Petra Maier
Summary: This study investigates the influence of cooling conditions on the evolution of the long-period stacking-ordered (LPSO) phase and corrosion behavior of as-cast Resoloy (R), a bioresorbable Mg-Dy-based alloy. It is found that grain size increases with prolonged heat treatment and slow cooling, while cooling in air leads to the formation of faint lamellar LPSO structures. The corrosion rate of the cooled platelets increases with increasing grain size, with corrosion starting at the matrix between LPSO lamellae.
Article
Behavioral Sciences
Morgan E. Stevenson, Vienna K. Behnke, Rodney A. Swain
BEHAVIOURAL BRAIN RESEARCH
(2018)
Article
Physics, Nuclear
Rashmirekha Swain, S. K. Patra, B. B. Sahu
Article
Astronomy & Astrophysics
R. N. Patra, A. K. Sethi, B. Nayak, R. R. Swain
Article
Chemistry, Multidisciplinary
Qi Zhang, Sang Beom Lee, Xu Chen, Morgan E. Stevenson, Jing Pan, Donghai Xiong, Yu Zhou, Mark Steven Miller, Ronald A. Lubet, Yian Wang, Shama P. Mirza, Ming You
Article
Physics, Nuclear
R. R. Swain, B. B. Sahu, P. K. Moharana, S. K. Petra
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2019)
Article
Physics, Nuclear
R. R. Swain, B. B. Sahu
Article
Behavioral Sciences
Morgan E. Stevenson, Jacob J. M. Kay, Farid Atry, Alexander T. Wickstrom, Josephine R. Krueger, Ramin E. Pashaie, Rodney A. Swain
BEHAVIOURAL BRAIN RESEARCH
(2020)
Article
Physics, Nuclear
R. R. Swain, C. Dash, P. Mohanty, B. B. Sahu
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2020)
Article
Behavioral Sciences
Morgan E. Stevenson, Amanda S. Nazario, Alicja M. Czyz, Heather A. Owen, Rodney A. Swain
Summary: This study investigated the ultrastructural changes in the cerebellum of rats during acrobatic motor learning task training, revealing that female rats made fewer errors and had shorter latencies compared to male rats in the initial days of training. Rats that completed four days of acrobatic training showed an increase in synaptic density and astrocytic volume.
NEUROBIOLOGY OF LEARNING AND MEMORY
(2021)
Article
Physics, Nuclear
C. Dash, R. R. Swain, G. Tripathy, I. Naik, B. B. Sahu
Summary: A partial wave scattering matrix for the total effective complex potential of nucleus-nucleus collisions is proposed to analyze the angular variations of elastic scattering and fusion cross-sections simultaneously. The potential's imaginary part is calculated using distorted waves, which accounts for the cross-sections due to absorption in different regions. The energy-independent and weakly absorbing nature of the potential supports resonance states in various partial wave trajectories.
Article
Psychology, Clinical
Somaia Mohamed, Gary R. Johnson, Varadan Sevilimedu, Sanjai D. Rao, Paul B. Hicks, Peijun Chen, Kimberly Lauro, George Jurjus, Patricia Pilkinton, Lori Davis, James A. Wilcox, Ali Iranmanesh, Mamta Sapra, Muhammad Aslam, James Michalets, Michael Thase, Sidney Zisook
JOURNAL OF CLINICAL PSYCHIATRY
(2020)