Results 241 to 250 of about 239,905 (332)

Ultrafast dynamics of protein collapse from single-molecule photon statistics

open access: green, 2007
Daniel Nettels   +3 more
openalex   +1 more source

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

open access: yesAdvanced Science, EarlyView.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy   +13 more
wiley   +1 more source

Engineering Nanohole-Etched Quantum Dots for Telecom-Band Single-Photon Generation. [PDF]

open access: yesACS Nano
Masson IM   +7 more
europepmc   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

open access: yesAdvanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon   +10 more
wiley   +1 more source

First positronium lifetime imaging with scandium-44 on a long axial field-of-view PET/CT. [PDF]

open access: yesFront Nucl Med
Mercolli L   +14 more
europepmc   +1 more source

Tailoring Vascular‐Immune Homeostasis via Manganese‐DNA Complex‐Armed Immunogenic Extracellular Vesicles for Pancreatic Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
This study demonstrates that Mn2⁺–tumor DNA complexes encapsulated in dendritic cell (DC)– derived immunogenic extracellular vesicles (EVDC@Mn‐DNA) act as a DC‐specific cGAS– STING activator. EVDC@Mn‐DNA treatment enhances intratumoral DC activation, improves tumor vascular function, promotes CD8⁺ T cell activity, and suppresses pancreatic tumor growth,
Xue Jiang   +13 more
wiley   +1 more source

Quantum light drives electrons strongly at metal needle tips. [PDF]

open access: yesNat Phys
Heimerl J   +5 more
europepmc   +1 more source

Strawberry Notch 1 Acts as a Transcriptional Regulator Driving Oncogenic Programs in Liver Carcinogenesis

open access: yesAdvanced Science, EarlyView.
This study reports that SBNO1 protein is upregulated in several cancer entities. SBNO1 protein interacts with the basal transcription factor TFIID via TAF4, enabling its recruitment to transcription start sites and the modulation of target gene expression.
Sarah Fritzsche   +21 more
wiley   +1 more source

On-chip quantum states generation by incoherent light. [PDF]

open access: yesNat Commun
Song YW   +11 more
europepmc   +1 more source

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