Results 51 to 60 of about 661,973 (348)

General formalism for the stability of thin-shell wormholes in 2+1 dimensions [PDF]

open access: yes, 2014
In this article we theoretically construct circular thin-shell wormholes in a 2+1 dimensional spacetime. The construction is symmetric with respect to the throat.
Bejarano, Cecilia   +2 more
core   +3 more sources

Cancer Risk in Patients With Systemic Sclerosis: A Nationwide Cohort Study in South Korea 2004 to 2021

open access: yesArthritis Care &Research, EarlyView.
Objective Systemic sclerosis (SSc) is a rare autoimmune disease characterized by tissue fibrosis, vasculopathy, and immune dysregulation. Our objectives were to quantify the overall and site‐specific cancer risks in patients with SSc compared to the general population, examine temporal trends in cancer incidence following SSc diagnosis, and explore ...
Jihyun Na   +4 more
wiley   +1 more source

Unsteady Numerical Investigation into the Impact of Isolator Motion on High-Mach-Number Inlet Restart via Throat Adjustment

open access: yesAerospace
This paper focuses on exploring the variable throat-assisted restart method for high-Mach-number inlets. A two-dimensional adjustable throat hypersonic inlet was designed, and unsteady numerical simulations were carried out on its restart process, which ...
Hongyu Tang   +4 more
doaj   +1 more source

Method of making a rocket nozzle [PDF]

open access: yes, 1969
A method is described for forming the interior of a nozzle having uneven walls so that a throat of smooth converging and diverging sides is provided for passing flow.
Campbell, D. H.
core   +1 more source

Bioinspired Shape Reconfigurable, Printable, and Conductive “E‐Skin” Patch with Robust Antibacterial Properties for Human Health Sensing

open access: yesAdvanced Functional Materials, EarlyView.
In this article, Hojin Kim, Sayan Deb Dutta, and co‐workers report a shape‐reconfigurable, 3D printable, and highly adhesive slime‐like ‘electronic skin’ or ‘E‐skin’ patch for human health sensing and tissue engineering applications. The dual reinforcement of hydrogel patch with carbon nanotubes (CNTs) and cellulose nanocrystals (CNCs) improve the ...
Hojin Kim   +6 more
wiley   +1 more source

Development of Gas Dynamic Nozzles: A Preliminary Computational Study

open access: yesEngineering Proceedings
The design and optimization of supersonic nozzles are of great interest in aerospace and propulsion system applications. Designing and maintaining a mechanically simple nozzle would be beneficial over the complex nozzles that are currently in use.
Prasad Savanur   +4 more
doaj   +1 more source

Absorption of Scalars by Extended Objects [PDF]

open access: yes, 1997
We derive the low energy absorption cross section of minimal scalars for a very generic class of geometries, that includes, among others, black holes, strings, $p$-branes, as well as intersecting brane configurations.
Callan   +19 more
core   +2 more sources

Cholesterol in mRNA‐Lipid Nanoparticles can be Replaced with the Synthetic Mycobacterial Monomycoloyl Glycerol Analogue MMG‐1

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that cholesterol in messenger RNA‐lipid nanoparticles (mRNA‐LNPs) can be completely replaced with an immunopotentiating lipid, i.e., a synthetic analogue of the C‐type lectin receptor agonist monomycoloyl glycerol (MMG‐1), without compromising physicochemical properties, in vivo transfection efficiency, and immunogenicity of the
Abhijeet G. Lokras   +19 more
wiley   +1 more source

Images of Common Foreign Body at an Uncommon Site [PDF]

open access: yesJournal of Clinical and Diagnostic Research
A 73-year-old male resident of Wardha presented to the Ear, Nose and Throat (ENT) Outpatient Department (OPD) with complaints of a foreign body sensation in his throat for the past eight days.
Parindita Sarmah   +2 more
doaj   +1 more source

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