Context. We study the non–linear evolution of magnetic fields in neutron star crusts with special attention to the influence of the Hall drift. Aims. Our goal is to understand the conditions for fast dissipation due to the Hall term in the induction equation. We study the interplay of Ohmic dissipation and Hall drift in order to find a timescale for the overall crustal field decay. Methods. We ...

The goal of this study was to gain insight into the diversity of culturable actinobacteria in desert soil crusts and to determine the physiological characteristics of the predominant actinobacterial group in these crusts. Culture-dependent method was employed to obtain actinobacterial strains from desert soil samples collected from Shapotou National Desert Ecological Reserve (NDER) located in T...

Sodium accumulating playas (also termed sodic or natric playas) are typically covered by polygonal crusts with different pattern characteristics, but little is known about the short-term (hours) dynamics of these patterns or how pore water may respond to or drive changing salt crust patterning and surface roughness. It is important to understand these interactions because playa-crust surface po...

Black crusts on stone surfaces, mainly composed of gypsum crystals, not only aesthetically affect the stonework but also cause further decay. Appropriate conservation methods should nondestructively detect the pollutant type and extent. In this paper, we propose a computer aided diagnostic method for automatically detecting deterioration patterns on black crusts. The proposed non-destructive me...

continued. Four to fi ve days later patient again developed generalised body rashes with greater intensity for which she was referred to us. On examination she was febrile, vitals were stable, had erythematous patches over both malar prominences with haemorrhagic crusts present over the lips and anterior nares (Fig. 1), multiple areas of erosions all over the body with thick adherent yellow cru...

1. Arid ecosystems are a patch mosaic of plants and biological soil crusts that have been described as islands and mantles of fertility, respectively. To determine whether these patches are metabolically linked by a fungal network of dark septate and arbuscular mycorrhizal fungi (AMF), we measured translocation of nitrogen (N) and carbon (C) in a desert grassland using 15 N-NO 3 and 13 C 5 , 15...

Forty Klebsormidium strains isolated from soil crusts of mountain regions (Alps, 600–3,000 m elevation) were analyzed. The molecular phylogeny (internal transcribed spacer rDNA sequences) showed that these strains belong to clades B/C, D, E, and F. Seven main (K. flaccidum, K. elegans, K. crenulatum, K. dissectum, K. nitens, K. subtile, and K. fluitans) and four transitional morphotypes (K. cf....

Manganese crusts (Mn-crusts) are a type of mineral deposit that exists on the surface seamounts and guyots at depths >800 m. We have developed method to efficiently map their distribution using data collected by autonomous underwater vehicles remotely operated vehicles. Volumetric measurements Mn-crusts made high-frequency subsurface sonar 3-D visual mapping instrument mounted these an algorith...