Results 51 to 60 of about 497,177 (252)

Origin of the `He/N' and `Fe II' Spectral Classes of Novae

open access: yes, 2012
The spectra of postoutburst novae display either He+N or Fe II lines as the most prominent non-Balmer lines at maximum light. Spectral diagnostics indicate physical conditions for 'He/N' spectra that are consistent with their origin in the white dwarf ...
Anupama   +15 more
core   +1 more source

Rational design and synthesis of SERS labels [PDF]

open access: yes, 2013
SERS labels are a new class of nanotags for optical detection based on Raman scattering. Central advantages include their spectral multiplexing capacity due to the small line width of vibrational Raman bands, quantification based on spectral intensities,
Schluecker, Sebastian, Wang, Yuling
core   +1 more source

Identification of single spectral lines through machine learning

open access: yes, 2019
The Identification of redshifted spectral lines is unequivocal when multiple lines with high S/N ratios are detected. In these cases, the distances measured between each pair of lines represent the reference used for the identification. However, when only one spectral line is detected, its identification becomes extremely difficult.
openaire   +1 more source

Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma

open access: yesMolecular Oncology, EarlyView.
Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken   +7 more
wiley   +1 more source

IGR J22517+2218=MG3 J225155+2217: a new gamma-ray lighthouse in the distant Universe

open access: yes, 2007
We report on the identification of a new soft gamma ray source, namely IGR J22517+2218, detected with IBIS/INTEGRAL. The source, which has an observed 20-100 keV flux of ~4 x10^-11 erg cm-2 s-1, is spatially coincident with MG3 J225155+2217, a quasar at ...
A. Bazzano   +10 more
core   +1 more source

Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin

open access: yesMolecular Oncology, EarlyView.
The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla   +10 more
wiley   +1 more source

Estuary and barrier island study [PDF]

open access: yes
The author has identified the following significant results. Scan line distortion is apparent in ERTS-1 imagery, imparting a serrated-edge appearance to shorelines.
Berg, D. W.
core   +1 more source

Identification of X-ray lines in the spectrum of the arcsec-scale precessing jets of SS 433

open access: yes, 2017
The extended X-ray emission observed at arcsec scales along the propagation trajectory of the precessing relativistic jets of the Galactic microquasar SS 433 features a broad emission line, with the position of the centroid being significantly different ...
Khabibullin, Ildar, Sazonov, Sergey
core   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

ATMOS Spacelab 1 science investigation [PDF]

open access: yes
Existing infrared spectra from high speed interferometer balloon flights were analyzed and experimental analysis techniques applicable to similar data from the ATMOS experiment (Spacelab 3) were investigated.
Park, J. H.   +3 more
core   +1 more source

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