Results 91 to 100 of about 220,607 (288)
Interstellar Extinction in the Gaia Photometric Systems
Open Astronomy, 2003 Three medium-band photometric systems proposed for the Gaia space mission are intercompared in determining color excesses for stars of spectral classes from O to M at V = 18 mag.
Bridžius A., Vansevičius V.
doaj +1 more source
Advanced Science, EarlyView.An entity‐centric foundation model, GloPath, is introduced for comprehensive glomerular lesion assessment from routine renal biopsy images. Trained on over one million glomeruli, the framework enables robust lesion recognition, grading, and cross modality diag nosis, while uncovering large‐scale clinicopathological associations.
Qiming He +28 more
wiley +1 more source
Dual-Star Photometer at the Tallinn Observatory
Open Astronomy, 2003 We briefly describe the dual-star photometer designed by P. Kalv, a former director of Tallinn Observatory (1934-2002) for multicolor photometry of close binaries and intrinsic variable stars.
Kalv P., Harvig V., Aas T., Pustylnik I.
doaj +1 more source
Advanced Science, EarlyView.An activity‐dependent pathway links prefrontal circuit hypoactivity to cognitive impairment. Reduced PVA–mPFC activity upregulates NEPAS, which suppresses PTX3 secretion, leading to impaired angiogenesis, myelin deficits, and memory decline. Rescue is achieved by NEPAS knockdown or chemogenetic circuit activation.
Boya Hu +11 more
wiley +1 more source
TRIPP: An Aperture Photometry Package for the Reduction of CCD Time Series Images
Open Astronomy, 2003 TRIPP is an aperture photometry program designed with the purpose of extracting light curves from large sets of similar CCD frames typically obtained during time-resolved photometric monitoring campaigns such as, for example, WET runs.
Schuh S. L. +3 more
doaj +1 more source
ALKBH3 m1A Demethylase Deficiency Reduces Alzheimer's Amyloid‐β Pathology
Advanced Science, EarlyView.This study identifies that ALKBH3‐driven m1A demethylation orchestrates Alzheimer's disease progression by disrupting mitochondrial and synaptic homeostasis. This epitranscriptomic mechanism suppresses PINK1‐mediated mitophagy via m1A erasure, leading to mitochondrial dysfunction, oxidative stress, elevated Aβ production, and impaired microglial ...
Yueyang Li +25 more
wiley +1 more source
Química NovaIt has been recurring adulterations in fuels (such as gasoline, ethanol and diesel), being necessary the exploration of the use of more modern analytical techniques capable of controlling the quality of these fuels, since some regulated tests may be ...
Flavia Tosato +14 more
doaj +1 more source
Ultraviolet Passbands for a Space Multicolor Photometric System
Open Astronomy, 2003 The results of search for the optimal location of ultraviolet passbands for an extra-atmospheric photometric system are given. The addition of passbands near the well-known extinction bump at 218 nm to the photometric system makes it possible to ...
Ambartsoumian A. R. +2 more
doaj +1 more source
Photometric and Astrometric Calibration of the JWST Instrument Complement
, 2006 In preparation for James Webb Space Telescope (JWST), a set of cross calibration programs with HST and Spitzer for suitable primary photometric standards and astrometric fields were developed.
Diaz-Miller, Rosa I.
core +1 more source
Advanced Science, EarlyView.Bimodal modulation of nitric oxide in endothelial cells is achieved by light‐sensitive polymer nanoparticles. In dark, P3HT/PEDOT:PSS NPs boost intracellular ·NO, upregulate both endothelial and induced nitric oxide synthase, and drive a metabolic shift toward glycolysis.
Camilla Marzuoli +12 more
wiley +1 more source