Results 61 to 70 of about 5,643,837 (365)
Systematic search for spherical crystal X-ray microscopes matching 1-25 keV spectral line sources.
Review of Scientific Instruments, 2016 Spherical-crystal microscopes are used as high-resolution imaging devices for monochromatic x-ray radiography or for imaging the source itself. Crystals and Miller indices (hkl) have to be matched such that the resulting lattice spacing d is close to ...
M. Schollmeier, G. Loisel
semanticscholar +1 more source
Infrared Spectroscopy of RNA Nucleosides in a Wide Range of Temperatures
LifeThe RNA world hypothesis suggests that early cellular ancestors relied solely on RNA molecules for both genetic information storage and cellular functions.
Susana Iglesias-Groth +2 more
doaj +1 more source
A Process for On-Line Spectral Analysis
Measurement + Control, 1969 As a modest contribution to the development of more problem-oriented control solutions, a simple on-line spectral-analysis process is presented and some of its possible applications discussed.
E. Moseley MSc, CEng, MIEE
doaj +1 more source
STAR FORMATION RELATIONS AND CO SPECTRAL LINE ENERGY DISTRIBUTIONS ACROSS THE J-LADDER AND REDSHIFT [PDF]
, 2014 We present FIR [50–300 μm]−CO luminosity relations (i.e., ) for the full CO rotational ladder from J = 1–0 up to J = 13–12 for a sample of 62 local (z ⩽ 0.1) (Ultra) Luminous Infrared Galaxies (LIRGs; LIR[8-1000 μm] > 1011 L☉) using data from Herschel ...
T. Greve +24 more
semanticscholar +1 more source
On the complete integrability of the discrete Nahm equations
, 1999 The discrete Nahm equations, a system of matrix valued difference equations, arose in the work of Braam and Austin on half-integral mass hyperbolic monopoles. We show that the discrete Nahm equations are completely integrable in a natural sense: to any
Murray, Michael K., Singer, Michael A.
core +1 more source
On line spectral frequencies [PDF]
IEEE Signal Processing Letters, 2003 The commonly used line spectral frequencies form the roots of symmetric and antisymmetric polynomials constructed from a linear predictor. We provide a new, simpler proof that the symmetric and antisymmetric polynomials can be regarded as optimal constrained predictors that correspond to predicting from the low-pass and high-pass filtered signal ...
Tom Bäckström, W.B. Kleijn, Paavo Alku
openaire +2 more sources
FoxO1 signaling in B cell malignancies and its therapeutic targeting
FEBS Letters, EarlyView.FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac +3 more
wiley +1 more source
Long-Term X-ray Spectral Variability in Seyfert 1 Galaxies
, 2003 Direct time-resolved spectral fitting has been performed on continuous RXTE monitoring of seven Seyfert 1 galaxies in order to study their broadband spectral variability and Fe K alpha variability characteristics on time scales of days to years ...
A. Markowitz +11 more
core +1 more source
Special Issue on Spectral Line Shapes in Plasmas
Atoms, 2014 Line-shape analysis is one of the most important tools for diagnostics of both laboratory and space plasmas. Its reliable implementation requires sufficiently accurate calculations, which imply the use of analytic methods and computer codes of varying ...
Evgeny Stambulchik +3 more
doaj +1 more source
Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia
FEBS Letters, EarlyView.This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley +1 more source