Results 41 to 50 of about 1,599,458 (351)
The Role of Selenium on the Formation of Spheroidal Graphite in Cast Iron
Metals, 2021 Sulfur, an element that belongs to group 16 (chalcogens) of the periodic table, is an excellent promoter of nucleation substrates for graphite in cast iron.
Gorka Alonso +3 more
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Obscured Active Galactic Nuclei [PDF]
Annual Review of Astronomy and Astrophysics, 2018 Active galactic nuclei (AGN) are powered by the accretion of material onto a supermassive black hole (SMBH) and are among the most luminous objects in the Universe.
R. Hickox, D. Alexander
semanticscholar +1 more source
Recent advances in maize nuclear proteomic studies reveal histone modifications
Frontiers in Plant Science, 2012 The nucleus of eukaryotic organisms is highly dynamic and complex, containing different types of macromolecules including DNA, RNA, and a wide range of proteins.
Paula eCasati
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The Role of HO-1 and Its Crosstalk with Oxidative Stress in Cancer Cell Survival
Cells, 2021 Heme oxygenases (HOs) act on heme degradation to produce carbon monoxide (CO), free iron, ferritin, and biliverdin. Upregulation of cellular HO-1 levels is signature of oxidative stress for its downstream effects particularly under pro-oxidative status ...
Shih-Kai Chiang +2 more
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Cerebellar nuclei evolved by repeatedly duplicating a conserved cell-type set
Science, 2020 Cerebellar evolution Cerebellar nuclei, substructures of the cerebellum, transfer information from the cerebellum to other parts of the brain. Using single-cell transcriptomics, Kebschull et al.
Justus M. Kebschull +13 more
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Mask-RCNN and U-Net Ensembled for Nuclei Segmentation [PDF]
IEEE International Symposium on Biomedical Imaging, 2019 Nuclei segmentation is both an important and in some ways ideal task for modern computer vision methods, e.g. convolutional neural networks. While recent developments in theory and open-source software have made these tools easier to implement, expert ...
A. Vuola, S. Akram, Juho Kannala
semanticscholar +1 more source
Physica Scripta, 2006 Simple generic aspects of nuclear pairing in homogeneous medium as well as in finite nuclei are discussed. It is argued that low-energy nuclear structure is not sensitive enough to resolve fine details of nuclear nucleon-nucleon (NN) interaction in general and pairing NN interaction in particular what allows for regularization of the ultraviolet (high ...
openaire +2 more sources
Circular DNA's from HeLa cell nuclei and mitochondria [PDF]
, 1970 An electron microscopic observation was made on the DNA's extracted from purified HeLa cell nuclei, mitochondria, and the whole cell, and fractionated by ethidium bromide-cesium chloride density gradient method or sucrose density gradient method. Nuclear
Oda, Takuzo +4 more
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Scientific Reports, 2017 The intrinsic value of biodiversity extends beyond species diversity, genetic heritage, ecosystem variability and ecological services, such as climate regulation, water quality, nutrient cycling and the provision of reproductive habitats it is also an ...
Alan C. Pilon +7 more
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Micromachines, 2019 Highly localized (point) constrictions featuring a round geometry with ultra-sharp edges in silicon have been demonstrated for the reagent-free continuous-flow rapid mechanical lysis of mammalian cells on a single-cell basis. Silicon point constrictions,
Xiaomin Huang +3 more
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