About one year ago, it was speculated that decaying or annihilating Light Dark Matter (LDM) particles could explain the flux and extension of the 511 keV line emission in the galactic centre. Here we present a thorough comparison between theoretical expectations of the galactic positron distribution within the LDM scenario and observational data from INTEGRAL/SPI. Unlike previous analyses, ther...

RESULTS: The ATC provided consistently stable environmental and temperature control throughout extended cultures. Live imaging revealed dynamic endothelia with cells migrating throughout the vessel walls, both downstream (with) and upstream (against) the flow direction. Cell-cell junctions were contiguous, indicating a confluent, healthy endothelium with intact cytoskeletons. The cross-sectiona...

The study examined the hydraulic properties of IKPA river and its impact on sediment transport. Measurements such as depths river, Top width, discharges were measured along stretch river. cross section was divided with ranging poles maximum distance 4m apart. velocity 0.94m/s while minimum 0m/s recorded in cross-section rivers. at second vertical banks also bed regression analysis profile again...

The collisions between two oxygen molecules give rise to O4 absorption in the Earth atmosphere. O4 absorption is relevant to atmospheric transmission and Earth's radiation budget. O4 is further used as a reference gas in Differential Optical Absorption Spectroscopy (DOAS) applications to infer properties of clouds and aerosols. The O4 absorption cross section spectrum of bands centered at 343, ...

Context. Flaring coronal loops are often observed in microwave and sometimes in soft X-rays, as extended structures of variable cross-section or width. The quasi-periodic pulsations associated with flaring coronal loops have been interpreted in terms of standing, fast sausage magnetoacoustic modes and suggested for the diagnostics of the magnetic field outside the oscillating loop. Aims. We inv...

Photoionization cross section of the fullerene ion C + 60 has been calculated within a single-electron approximation and also by using a consistent many-body theory accounting for many-electron correlations. Electronic wave functions of the ground and excited states have been determined within the jellium model based on the local density approximation. It is predicted a giant resonance in the p...