Results 41 to 50 of about 1,250,528 (295)

Tomo4D: 4D-STEM tomographic reconstruction

No
Kiriati, Shai, Fernández, José Jesús, Elbaum, Michael   +2 more
openaire   +2 more sources

No Evidence that 2D:4D is Related to the Number of CAG Repeats in the Androgen Receptor Gene [PDF]

, 2013
The length ratio of the second to the fourth digit (2D:4D) is a putative marker of prenatal testosterone (T) effects. The number of CAG repeats (CAGn) in the AR gene is negatively correlated with T sensitivity in vitro. Results regarding the relationship
Johannes eHönekopp, Honekopp, Johannes, Johannes Hönekopp   +2 more
core   +1 more source

Digit Ratio (2D:4D): A Biomarker for Prenatal Sex Steroids and Adult Sex Steroids in Challenge Situations [PDF]

, 2014
Digit ratio (2D:4D) denotes the relative length of the second and fourth digits. This ratio is considered to be a biomarker of the balance between fetal testosterone (T) and estrogen (E) in a narrow window of early ontogeny.
Liam Kilduff, Cook, C., Liam eKilduff, Bernhard Fink, Blair Crewther, Cristian eCook, Bernhard eFink, Fink, B., Crewther, B.T., Manning, J., Christian Cook, Manning, John, Kilduff, Liam P, John eManning, John Manning, Cook, Christian, Fink, Bernhard, Blair eCrewther, Manning, John T., Kilduff, Liam, Crewther, Blair   +20 more
core   +1 more source

Increasing Spatial Fidelity and SNR of 4D-STEM using Multi-frame Data Fusion [PDF]

, 2021
4D-STEM, in which the 2D diffraction plane is captured for each 2D scan position in the scanning transmission electron microscope (STEM) using a pixelated detector, is complementing and increasingly replacing existing imaging approaches.
Haas, Benedikt, Koch, Christoph T., Nellist, Peter D., Jones, Lewys, O'Leary, Colum M., Peter D Nellist, Colum M O'Leary, Christoph T Koch, Lewys Jones, Benedikt Haas   +9 more
core   +1 more source

Shadow montage and cone-beam reconstruction in 4D-STEM tomography

Microscopy and Microanalysis
Abstract Diffraction images in a scanning transmission electron microscope (STEM) provide a real-space projection of the sample at sufficient probe defocus. Such shadow images may be acquired patch by patch in a 4D-STEM setup using a pixelated detector and assembled into a shadow montage.
Seifer S, Houben L, Elbaum M.
europepmc   +3 more sources

Neutralization of the PTX3/CD44 axis suppresses TGF‐β1 signaling in kidney fibrosis

FEBS Letters, EarlyView.
This study investigates how the PTX3/CD44 axis promotes kidney fibrosis by activating TGF‐β1 signaling. We demonstrate that the neutralizing antibody WHC‐001 effectively inhibits this pathway, suppressing myofibroblast activation and partial epithelial–mesenchymal transition (EMT).
Chao‐Chun Cheng, Shen‐Shin Chang, Feng‐Wei Chen, Ying‐Chieh Su, Thanh Phuong Nguyen, Yu‐Wei Hsiao, Jhih‐Ying Chi, Hsin‐Yin Liang, Ju‐Ming Wang   +8 more
wiley   +1 more source

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

FEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana, Xiaowei Bogetti, Stuti Sharma, Ivet Bahar   +3 more
wiley   +1 more source

Investigation of the thermal decomposition of Pu(IV) oxalate: a transmission electron microscopy study

Frontiers in Nuclear Engineering
The degradation of the internal structure of plutonium (IV) oxalate during calcination was investigated with Transmission Electron Microscopy (TEM), electron diffraction, Electron Energy-Loss Spectroscopy (EELS), and 4D Scanning TEM (STEM). TEM lift-outs
Edgar C. Buck, Dallas D. Reilly, Luke E. Sweet, Aaron D. Nicholas, Forrest D. Heller, Gabriel B. Hall, Richard A. Clark, Amanda J. Casella   +7 more
doaj   +1 more source

Robust design of semi-automated clustering models for 4D-STEM datasets

APL Machine Learning, 2023
Materials discovery and design require characterizing material structures at the nanometer and sub-nanometer scale. Four-Dimensional Scanning Transmission Electron Microscopy (4D-STEM) resolves the crystal structure of materials, but many 4D-STEM data ...
Alexandra Bruefach, Colin Ophus, M. C. Scott   +2 more
doaj   +1 more source

Small extracellular vesicles derived from four dimensional-culture of mesenchymal stem cells induce alternatively activated macrophages by upregulating IGFBP2/EGFR to attenuate inflammation in the spinal cord injury of rats

Frontiers in Bioengineering and Biotechnology, 2023
Effectively reducing the inflammatory response after spinal cord injury (SCI) is a challenging clinical problem and the subject of active investigation.
Junhua Wang, Qingshuai Wei, Yue Yang, Mingtian Che, Yuanhuan Ma, Lizhi Peng, Haiyang Yu, Huijuan Shi, Guanheng He, Rongjie Wu, Ting Zeng, Xiang Zeng, Wenbin Ma   +12 more
doaj   +1 more source