Results 141 to 150 of about 8,651,536 (338)

Radiation exposure of the surgeons in sentinel lymph node biopsy

open access: yes, 2012
Background: Sentinel node biopsy (SLNB) is the standard of care for breast cancer treatment and it is getting wide acceptance in Iran. The radiation safety of the procedure has been investigated under controlled conditions, but the standard dose of ...
Najafi, M.   +8 more
core  

Interlayer Expansion of Bulk MoS2 via Top‐Down Organic Pillaring Enables Tunable Li+ Intercalation and Controlled Solvent Co‐Intercalation

open access: yesAdvanced Functional Materials, EarlyView.
Top‐down organic pillaring expands the interlayer spacing of bulk‐sized MoS2 particles while preserving the bulk morphology. Operando X‐ray diffraction and electrochemical dilatometry show that MoS2‐bulk undergoes solvent co‐intercalation in diglyme electrolyte, causing large structural expansion, while pillared, expanded MoS2 suppresses solvent uptake
Jaehoon Choi   +8 more
wiley   +1 more source

On the (Higher Multipoles) Variance Asymmetry in the Cosmic Microwave Background

open access: yesThe Astrophysical Journal
We have studied the cosmic microwave background (CMB) map looking for features beyond cosmological isotropy. We began by tiling the CMB variance maps (which are produced by different smoothing scales) with stripes of different sizes along the most ...
MohammadHossein Jamshidi   +2 more
doaj   +1 more source

Forecasting synchrotron spectral parameters with QUIJOTE-MFI2 in combination with Planck and WMAP

open access: yesAstronomy & Astrophysics
We present a parametric component separation forecast for the QUIJOTE–MFI2 instrument (10–20 GHz) that assesses its impact on constraining polarised synchrotron emission at 1° full width at half maximum and Nside = 64.
Almeida A.   +4 more
doaj   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler   +4 more
wiley   +1 more source

A Measurement of Atmospheric Circular Polarization with POLARBEAR

open access: yesThe Astrophysical Journal
At millimeter wavelengths, the atmospheric emission is circularly polarized owing to the Zeeman splitting of molecular oxygen by the Earth's magnetic field.
Takuro Fujino   +22 more
doaj   +1 more source

Background Radiation: Detection, Measurement and Hazards

open access: yes, 2017
Radiation is a form of energy. It is of two types: non-ionizing and ionizing. Among them, ionizing radiations have hazardous health effects upon human beings.
Rajan Paudel Chhetri
core   +1 more source

Submicron Metasurface Reconfigured Multiband Smart Windows

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a submicron metasurface reconfigured multiband thermochromic smart window. By integrating subwavelength nanostructures into a Fabry−Perot resonator configuration, it mitigates conventional trade‐offs to simultaneously deliver high luminous transmittance and robust solar heating and radiative cooling modulation capabilities ...
Guanya Wang   +8 more
wiley   +1 more source

Impact of Interacting Parameters on Dark Matter in an Interacting Dark Energy Model

open access: yesThe Astrophysical Journal Supplement Series
This paper investigates a dark energy model within the Friedmann–Lemaître–Robertson–Walker cosmological framework, considering both interacting and noninteracting scenarios.
Himanshu Chaudhary   +3 more
doaj   +1 more source

LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection

open access: yesJournal of Low Temperature Physics, 2019
M. Hazumi   +163 more
semanticscholar   +1 more source

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