Results 31 to 40 of about 21,251,406 (232)

Divalent metal‐dependent regulation of hepcidin expression by MTF‐1 [PDF]

open access: yesFEBS Letters, 2009
Hepcidin is a small acute phase peptide that regulates iron absorption. It is induced by inflammation and infection, but is repressed by anaemia and hypoxia. Here we further reveal that hepcidin transcription also involves interactions between functional metal response elements (MREs) in its promoter, and the MRE‐binding transcription factor‐1 ...
Balesaria, Sara   +4 more
openaire   +2 more sources

AN IMPROVED HIGH FREQUENCY MODULATING FUSION METHOD BASED ON MODULATION TRANSFER FUNCTION FILTERS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
GeoEye-1 is the most advanced and highest resolution commercial earth imaging satellite in the world today. It provides multispectral images (MS) and Panchromatic image (PAN) with spatial resolutions of 2.0 m and 0.5 m respectively.
Y. Jia, M. Wu, X. Zhang
doaj   +1 more source

Measurement of damaged segment deformity in the thoracic and lumbar spine with spiral computed tomography to calculate the required correction

open access: yesГений oртопедии, 2022
Introduction The more accurate is the measurement of the parameters for correcting the deformity of damaged spinal segments the more accurate will be the restoration of the sagittal profile and original anatomy of the spine.
Vladimir D. Usikov   +2 more
doaj   +1 more source

Research on the Coupled Modulation Transfer Function of the Discrete Sampling System with Hexagonal Fiber-Optic Imaging Bundles

open access: yesApplied Sciences, 2022
In this study, we developed a numerical model of the coupled modulation transfer function (coupled-MTF) based on the discrete sampling system from the perspective of optical system imaging quality evaluation for coupled two-dimensional discrete sampling ...
Wenxian Li   +4 more
doaj   +1 more source

Fast MTF measurement of CMOS imagers at the chip level using ISO 12233 slanted-edge methodology [PDF]

open access: yes, 2004
MTF measurement methods for imaging devices usually require the use of an optical system to project the image of the object onto the detector. So, MTF results quality strongly depends on the accuracy of the optical adjustments (alignments, focusing ...
Magali Estribeau   +3 more
core   +1 more source

Theoretical evaluation of MTF and charge collection efficiency in CCD and CMOS image sensor [PDF]

open access: yes, 2009
Classical models used to calculate the Modulation Transfer function (MTF) of a solid-state image sensor generally use a sinusoidal type of illumination.
Olivier Saint-Pé   +11 more
core   +1 more source

Molecular Mechanisms of MTF‐1 Metalloregulation

open access: yesThe FASEB Journal, 2006
In humans and other higher eukaryotes, the metal‐responsive element‐binding transcription factor‐1 (MTF‐1) coordinates the expression of genes involved in Zn(II) homeostasis, metal ion detoxification and protection against oxidative stress.
John H Laity   +5 more
openaire   +1 more source

The Transcription Factor MTF-1 Mediates Metal Regulation of the Mouse ZnT1 Gene [PDF]

open access: yesJournal of Biological Chemistry, 2000
Metal regulation of the mouse zinc transporter (ZnT)-1 gene was examined in cultured cells and in the developing conceptus. Zinc or cadmium treatment of cell lines rapidly (3 h) and dramatically (about 12-fold) induced ZnT1 mRNA levels. In cells incubated in medium supplemented with Chelex-treated fetal bovine serum, to remove metal ions, levels of ...
S J, Langmade   +3 more
openaire   +2 more sources

Markov Transition Field Combined with Convolutional Neural Network Improved the Predictive Performance of Near-Infrared Spectroscopy Models for Determination of Aflatoxin B1 in Maize

open access: yesFoods, 2022
This work provides a novel approach to monitor the aflatoxin B1 (AFB1) content in maize by near-infrared (NIR) spectra-based deep learning models that integrates Markov transition field (MTF) image coding and a convolutional neural network (CNN) strategy.
Bo Wang, Jihong Deng, Hui Jiang
doaj   +1 more source

Transcription Factor MTF-1 Involved in the Cellular Response to Zinc

open access: yesYAKUGAKU ZASSHI, 2021
Heavy metals, both toxic and essential, have long been an important research focus in life science. To investigate the intracellular actions of heavy metals at the molecular level, I have been exploring protein factors involved in induction of metallothionein (MT) genes by heavy metals that specifically bind to a metal responsive element (MRE) in the ...
openaire   +3 more sources

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