Results 31 to 40 of about 1,925,346 (295)

Sharp focusing of linearly polarized asymmetric Bessel beam

open access: yesComputer Optics, 2015
We conduct the numerical and experimental study of sharp focusing of a linearly polarized asymmetric Bessel beam with topological charge n = 3 and a crescent-shaped transverse intensity pattern. Using the Debye integral, we show that in the focal plane of a high NA aplanatic lens (NA = 0.9 – 0.95) the intensity distribution is also crescent-shaped ...
V. Kotlyar, S. Stafeev, A. Porfirev
openaire   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

open access: yesFEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi   +6 more
wiley   +1 more source

Focusing manner and posttraumatic growth [PDF]

open access: yes, 2018
© 2018, © 2018 World Association for Person-Centered & Experiential Psychotherapy & Counseling. Recent scholarship in the person-centered experiential (PCE) approach has theorized how organismic valuing might be an important process factor in the ...
Joseph, Stephen, Zwiercan, Alicja
core   +1 more source

Selection and focusing of higher-order modes in a CW waveguide terahertz laser

open access: yesВісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2022
Background: The problems of selection and focusing of higher order modes of a dielectric waveguide laser are considered. The proposed and investigated scheme of mode selection in waveguide quasi-optical resonators can be used in the development and ...
O. V. Gurin   +7 more
doaj   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

open access: yesFEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante   +10 more
wiley   +1 more source

Highly Efficient Focusing of Terahertz Waves with an Ultrathin Superoscillatory Metalens: Experimental Demonstration

open access: yesAdvanced Photonics Research, 2021
The performance of an ultrathin (thickness 
Santiago Legaria   +4 more
doaj   +1 more source

Sharp-focusing Bragg–Fresnel zone plate with Laue diffraction geometry [PDF]

open access: yesJournal of Synchrotron Radiation, 2006
The impact of decreased zone height on the focal properties of hard X-ray Bragg-Fresnel zone plates has been studied by numerical simulation. Decreased zone height allows for smaller zone widths and, although the efficiency of the lens is decreased, the signal-to-background ratio in the focal plane of the lens remains at a comparatively high level ...
Levon, Haroutunyan, Gayane, Hovhannisyan
openaire   +2 more sources

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

PS-SHARP

open access: yes, 2023
MATLAB implementation of the SHARP technique for polarization-sensitive optical coherence tomography [described in "Computational refocusing in phase-unstable polarization-sensitive optical coherence tomography" by Ruiz-Lopera et al. 2023].
Martin Villiger (3957191)   +5 more
core   +1 more source

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