The activity-guided fractionation of the MeOH extract of the flower of Paulownia coreana led to the isolation of a new geranylated flavanone, 3'-O-methyl-5'-hydroxydiplacol (1), along with 10 known compounds (2-11). Their structures were determined using spectroscopic techniques, which included one and two dimensional (1- and 2D)-NMR. Among the isolates, compounds 1-6 showed potent inhibitory a...

Dissecting the luminosity function of the Coma cluster of galaxies by means of CFHT wide field images Abstract. By means of wide–field (42 × 28 arcmin) CCD images of the Coma cluster of galaxies and of control fields, taken at the Canada– France–Hawaii telescope with the CFH12K and UH8K cameras, we determine the luminosity function bi–variate in central brightness. We found a clear progression ...

The bacterial genus "Candidatus Phytoplasma" contains a group of insect-transmitted plant pathogens in the class Mollicutes. Here, we report a draft genome assembly and annotation of strain NCHU2014, which belongs to the 16SrII-A subgroup within this genus and is associated with purple coneflower witches' broom disease in Taiwan.

The eccentric connectivity index ξ is a distance–based molecular structure descriptor that was recently used for mathematical modeling of biological activities of diverse nature. We prove that the broom has maximum ξ among trees with a fixed maximum vertex degree, and characterize such trees with minimum ξ . In addition, we propose a simple linear algorithm for calculating ξ of trees.

In this squib, we study some symmetry patterns that arise from introducing a notion of duality in categorial grammar. We first look at residuated and dually residuated families of operations, in syntax and semantics. Inspecting the monotonicity properties of these operations, we then identify a further set of (dually) Galois connected binary operations, hitherto uninvestigated in the linguistic...

An automatic custom-made procedure is developed to identify macroplastic debris loads in coastal and marine environment, through hyperspectral imaging from unmanned aerial vehicles (UAVs). Results obtained during a remote-sensing field campaign carried out the seashore of Sassari (Sardinia, Italy) are presented. A push-broom-sensor-based spectral device, onboard DJI Matrice 600 drone, was emplo...

The interest on acquiring player and ball data during soccer games is increasing in several domains such as media or training. Consequently, tracking systems are becoming widely used for live data gathering. However, due to costs, stadium infrastructure, media rights etc. there is a trend for stand-alone mobile low-cost soccer tracking systems. The drawback of such systems is that generally onl...

Biomass feedstocks have been utilized for the commercial production of a wide range fuels and chemicals through pyrolysis process. Broom weed is abundant but it has not widely used in Nigeria as means useful fuel chemical thereby constituting an environmental menace. This study aimed to determine effects selected process parameters on product yields during broom fixed bed reactor. was obtained ...