Although there is growing concern that amphibian populations are declining globally 1 , 2 ,
3 , much of the supporting evidence is either anecdotal 4 , 5 or derived from short-term …

Perturbations of stars and black holes have been one of the main topics of relativistic
astrophysics for the last few decades. They are of particular importance today, because of their …

It has been known for decades that it is possible to detect small amounts of extracellular
nucleic acids in plasma and serum of healthy and diseased human beings. The unequivocal …

The High-Z Supernova Search is an international collaboration to discover and monitor Type
Ia supernovae (SNe Ia) at z> 0.2 with the aim of measuring cosmic deceleration and global …

The High-z Supernova Search Team has discovered and observed eight new supernovae
in the redshift interval z= 0.3–1.2. These independent observations, analyzed by similar but …

We report results on the performance of a free-electron laser operating at a wavelength of
13.7 nm where unprecedented peak and average powers for a coherent extreme-ultraviolet …

We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the
redshift range 0.16≤ z≤ 0.62. The luminosity distances of these objects are determined by …

… b Corresponding 80-kVp image from the other detector. c Averaged image from a and b
showing a normal … 9b) the superimposition of bone would require an evaluation slice by slice. …

Metal interconnections are expected to become the limiting factor for the performance of
electronic systems as transistors continue to shrink in size. Replacing them by optical …

Comprehensive knowledge of the dynamic behaviour of electrons in condensed-matter
systems is pertinent to the development of many modern technologies, such as semiconductor …