Results 71 to 80 of about 1,613,986 (294)
Broadband single-shot transient absorption spectroscopy
Optics Express, 2020 The duration of transient absorption spectroscopy measurements typically limits the types of systems for which the excited state dynamics can be measured. We present a single-shot transient absorption (SSTA) instrument with a spatially encoded 60 ps time delay range and a 100 nm spectral range that is capable of acquiring a transient spectrum in 20 s ...
Kelly S. Wilson +2 more
openaire +2 more sources
Transient absorption of vibrationally excited ice Ih [PDF]
The Journal of Chemical Physics, 2008 The ultrafast dynamics of HDO:D2O ice Ih at 180K is studied by midinfrared ultrafast pump-probe spectroscopy. The vibrational relaxation of HDO:D2O ice is observed to proceed via an intermediate state, which has a blueshifted absorption spectrum.
Dokter, A.M., Bakker, H.J.
openaire +5 more sources
Molecular Oncology, EarlyView.LUNAR is a liver‐specific long noncoding RNA (lncRNA) that is highly expressed in normal liver but becomes epigenetically silenced in hepatocellular carcinoma through promoter hypermethylation. Loss of LUNAR is associated with NOTCH activation, epithelial–mesenchymal transition, and metastasis, whereas restoring LUNAR restrains metastatic progression ...
Se Ha Jang +9 more
wiley +1 more source
Translating whole‐genome doubling into precision medicine in cancer
Molecular Oncology, EarlyView.Whole‐genome doubling creates a WGD‐positive tumor state characterized by persistent chromosomal instability, karyotypic diversification, and cellular stress. These same biological pressures drive aggressive tumor evolution while exposing therapeutic vulnerabilities, providing a rationale for WGD‐informed precision medicine. Whole‐genome doubling (WGD)
Sejung Lee, Junghyeok Lim, Jinhyuk Bhin
wiley +1 more source
New Journal of Physics, 2016 We present the first measurement of the vectorial response of strongly dressed helium atoms probed by an attosecond pulse train (APT) polarised either parallel or perpendicular to the dressing field polarisation.
E R Simpson +11 more
doaj +1 more source
Ultrafast transient sub-bandgap absorption of monolayer MoS2
Light: Science & Applications, 2021 Photonics: Lighting the way to new photonic and optoelectronic applications Light–matter interactions in two-dimensional (2D) materials are of interest for applications such as lasers and solar cells, but these interactions drastically decrease below the
Susobhan Das +4 more
doaj +1 more source
CEACAM1 participation in breast cancer progression
Molecular Oncology, EarlyView.In invasive breast cancer (BC), CEACAM1 shifts from an apical to a uniform membranous/cytoplasmic pattern, or is lost, as tumors dedifferentiate, inversely tracking the Ki‐67 proliferative index. In MCF‐7 cells, only CEACAM1‐4L suppresses proliferation, repressing cell cycle and growth factor genes.
Mykola Lyndin +3 more
wiley +1 more source
Attosecond x-ray transient absorption spectroscopy in graphene
Physical Review Research, 2021 Real-time observations of the coherent electron dynamics induced by ultrashort light pulses in condensed-matter systems have remained elusive due to limitations in existing attosecond devices.
Giovanni Cistaro +3 more
doaj +1 more source
, 2012 Top: Steady-state absorption spectra of the CO complex of the Tf-trHb (red line) and the ferrous 5c-protein (black line). The protein concentration is 36 µM (2 mm path length cell).
Dario A. Estrin (120783) +11 more
core +1 more source
FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source