Results 41 to 50 of about 25,279 (299)
Organic Molecules in the Icy Bodies of Planetary Systems – Accepted Notions and New Ideas
Open Astronomy, 2018 Cometary bodies are acknowledged to contain some of the most pristine matter in the Solar System, including ices and minerals. Certain number of previously unidentified spectral emission features detected in comets can be explained as emission by ...
Simonia Irakli, Cruikshank Dale P.
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Advanced Materials Technologies, EarlyView.Cellulose fibers functionalized using cationic poly(Dimethyldiallylammonium chloride) (polyDADMAC) and laccase‐mediated ferulic acid system are processed into foams using different surfactants (Anionic, cationic, and non‐ionic). Fiber–surfactant interactions influence foam stabilization and porous structure formation during convective drying, producing
Abirami Senthil +4 more
wiley +1 more source
Digital Archive of the Astrograph Plates Stored at the Inasan Zvenigorod Observatory
Open Astronomy, 2012 The plate collection of the Zvenigorod 40-cm Carl Zeiss astrograph, obtained in 1972-2003, contains direct photographs of star fields, comets, asteroids, Pluto, and Mars. The electronic library of images from photographic plates was created from scanning
Vereshchagin S. V., Chupina N. V.
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Advanced Science, EarlyView.Chromosome 16q loss drives genomic instability through disruption of the CYLD–TIRR–53BP1 axis. CYLD preserves homologous recombination by stabilizing TIRR and limiting 53BP1 accumulation at DNA double‐strand breaks. CYLD deficiency redirects repair toward error‐prone non‐homologous end joining, promotes mutational burden and homologous recombination ...
Mingming Lu +14 more
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Iraqi Journal of Physics, 2023 This study is unique in this field. It represents a mix of three branches of technology: photometry, spectroscopy, and image processing. The work treats the image by treating each pixel in the image based on its color, where the color means a specific ...
Ruaa F. Hanash +2 more
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Infrared observations of faint comets [PDF]
, 1981 Infrared observations of the periodic comets Encke, Stephan-Oterma and Chernykh indicate that the dusty component in this class of comets is not radically different from the dusty component found in nonperiodic comets.
Rieke, G. +3 more
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Advanced Science, EarlyView.Optimized freeze‐drying and eosin staining deliver artifact‐free micro‐CT images of liver tissue at near‐histological detail, then hand the same specimen back for sectioning, staining, and sequencing. Fibrotic volume distinguishes normal liver from cirrhosis, while preserved RNA reveals inflammatory gene upregulation—one biopsy, three dimensions, and a
Kristijan Skok +13 more
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Studia Historiae Scientiarum, 2023 In this note we publish a short letter from Leonhard Euler’s son, Johann Albrecht Euler, the Secretary of the Imperial Academy in St. Petersburg, to Marcin Poczobutt-Odlanicki, the Vilnius astronomer.
Veronika Girininkaitė +2 more
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Advanced Science, EarlyView.Macrophage RSAD2 dually regulates CMPK2—the rate‐limiting enzyme for mitochondrial DNA synthesis—by suppressing its ubiquitination and promoting its phosphorylation via Csnk2a2 recruitment. This amplifies mtDNA production, which simultaneously activates a cGAS‐STING‐IRF3‐RSAD2 feedforward loop and the NLRP3 inflammasome, driving a self‐sustaining ...
Haomiao Yuan +16 more
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Comets, interstellar clouds and star clusters [PDF]
, 1976 The association of comets with star formation in clusters is elaborated. This hypothesis is also used to explain origin and evaluation of the Oort cloud, the composition of comets, and relationships between cometary and interstellar ...
Donn, B.
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