Results 141 to 150 of about 2,956 (261)

The Rhythmic and the Metronomic: On Charlie Chaplin's Gait

Critical Quarterly, EarlyView.
Matthew Beaumont
wiley   +1 more source

Pre‐Operative Intraoral Ultrasound Features of Benign and Malignant Oral Lesions: An Exploratory Pilot Study

Oral Diseases, EarlyView.
ABSTRACT Objective To evaluate intraoral‐ultrasound (ioUS) features of benign and malignant oral lesions. Methods In this prospective cross‐sectional study, patients with oral soft tissue lesions underwent ioUS followed by biopsy within 2 weeks. Sonographic features: size, echogenicity, cystic areas, calcifications, margins, and vascularity were ...
Ragda Abdalla‐Aslan, Diana Gaitini, Adi Rachmiel, Goni Merhav, Sharon Akrish, Marcia Javitt, Dekel Shilo, Omri Emodi, Yotam Shkedy, Nira Beck‐Razi   +9 more
wiley   +1 more source

Prolonged exposure to artificial light and carcinogenesis: A systematic review of oncostatic mechanisms associated with melatonin pathways

Photochemistry and Photobiology, EarlyView.
Exposure to artificial light at night (ALAN), particularly at blue wavelengths, disrupts circadian rhythms by suppressing melatonin, thereby increasing cancer susceptibility. This systematic review consolidates evidence linking prolonged ALAN exposure to an elevated risk of breast and prostate tumors.
Gabriel Barboza, Jêmina Oliveira, Antônio Ferreira, Renan Lopes, Marli Cupertino   +4 more
wiley   +1 more source

Activity of Halley-type Comets 12P/Pons–Brooks and 13P/Olbers from SOHO/SWAN Observations

The Planetary Science Journal
The Solar Wind ANisotropies (SWAN) all-sky hydrogen Ly α camera on the Solar and Heliosphere Observatory (SOHO) observed the hydrogen coma of Halley-type comet (HTC) 12P/Pons–Brooks from SOHO’s halo orbit around L1 throughout its 2023–2024 apparition ...
M. R. Combi, T. Mäkinen, J.-L. Bertaux, E. Quémerais, S. Ferron   +4 more
doaj   +1 more source

RAD51 and RAD51 paralog inhibition sensitizes nonreplicating quiescent keratinocytes to UV radiation

Photochemistry and Photobiology, EarlyView.
UV radiation and other compounds generate DNA adducts that block transcription and induce cell death if not removed by the nucleotide excision repair system. In this work, we used a small‐scale pharmacological screen to discover that inhibition of the recombinase RAD51 sensitized nonreplicating quiescent keratinocytes to both UVR and other agents that ...
Saman Khan, Angitha Nair, M. Alexandra Carpenter, Michael G. Kemp   +3 more
wiley   +1 more source

Short-period Jupiter family comets after Stardust

, 2008
The NASA Stardust mission has provided for laboratory study an extensive data set of cometary dust of known provenance (from comet 81P/Wild 2) yielding detailed insights into the composition of the comet.
Kearsley, Anton T., Burchell, Mark J.
core   +1 more source

DEFENDING THE EARTH FROM LONG-PERIOD COMETS AND SNEAKY ASTEROIDS: SHORT TERM THREAT RESPONSE REQUIRES LONG TERM PREPARATION. [PDF]

J Space Saf Eng, 2018
Nuth JA, Barbee B, Leung R.
europepmc   +1 more source

Cosmogenic nuclide production within the atmosphere and long period comets [PDF]

, 2013
The Earth is constantly bombarded by cosmic rays. These high energy particles collide with target nuclei, producing a shower of secondary particles. These secondaries contribute significantly to the radiation background at sea level and in the atmosphere,
Overholt, Andrew
core  

JWST Detection of a Carbon-dioxide-dominated Gas Coma Surrounding Interstellar Object 3I/ATLAS

The Astrophysical Journal Letters
3I/ATLAS is the third confirmed interstellar object to visit our solar system and only the second to display a clear coma. Infrared spectroscopy with the James Webb Space Telescope (JWST) provides the opportunity to measure its coma composition and ...
Martin A. Cordiner, Nathan X. Roth, Michael S. P. Kelley, Dennis Bodewits, Steven B. Charnley, Maria N. Drozdovskaya, Davide Farnocchia, Marco Micheli, Stefanie N. Milam, Cyrielle Opitom, Megan E. Schwamb, Cristina A. Thomas, Stefano Bagnulo   +12 more
doaj   +1 more source

A new activity index for comets

, 1991
An activity index, AI, is derived from observational data to measure the increase of activity in magnitudes for comets when brightest near perihelion as compared to their inactive reflective brightness at great solar distances.
Whipple, Fred L.
core