We present an X-ray observation of the active giant β Cet, performedwith the LowEnergy Concentrator Spectrometer (LECS) on-board the SAX satellite. The resulting X-ray spectrum is well fit by an optically-thin plasma model with two discrete temperatures, and the inferred coronal metallicity is compatible both with the abundances derived from a re-analysis of the ASCA SIS spectrum of the same ob...

The aim of the present study was to formulate β-cyclodextrin (β-CD) nanoparticles loaded with geraniol (GR) essential oil (EO) with appropriate physicochemical properties. Complexation of GR with β-CD was optimized by evaluation of four formulations, using the co-precipitation method, and the encapsulation efficiency (EE), loading, size, particle size distribution (PDI) and zeta potential were ...

The aim of the present study was to formulate β-cyclodextrin (β-CD) nanoparticles loaded with geraniol (GR) essential oil (EO) with appropriate physicochemical properties. Complexation of GR with β-CD was optimized by evaluation of four formulations, using the co-precipitation method, and the encapsulation efficiency (EE), loading, size, particle size distribution (PDI) and zeta potential were ...

The power spectrum of quantum dot (QD) fluorescence exhibits β f 1 noise, related to the intermittency of these nanosystems. As in other systems exhibiting f 1 noise, this power spectrum is not integrable at low frequencies, which appears to imply infinite total power. We report measurements of individual QDs that address this long-standing paradox. We find that the level of β f 1 noise decays ...

Introduction In this era of modern medicine, antimicrobial resistance can be regarded as a major health calamity. The emergence multidrug-resistant (MDR) Pseudomonas aeruginosa strains poses therapeutic challenges and lead to treatment failure in hospitalized patients. This study was conducted determine various types β-lactamases among MDR P. isolates recovered from patients.
 MethodsThis ...

For I ⊂ N, let ΛI denote those numbers in the unit interval whose continued fraction digits all lie in I. Define the corresponding transfer operator LI,βf(z) = ∑ n∈I ( 1 n+z )2β f ( 1 n+z ) for Re(β) > max(0, θI), where Re(β) = θI is the abscissa of convergence of the series ∑ n∈I n −2β . When acting on a certain Hilbert space HI,β , we show that the operator LI,β is conjugate to an integral op...

Outbreaks of multidrug-resistant bacterial infections have become more frequent worldwide owing to the emergence of several different classes of β-lactamases. In this study, the molecular, biochemical and structural characteristics of an Acinetobacter-derived cephalosporinase (ADC)-type class C β-lactamase, ADC-68, isolated from the carbapenem-resistant A. baumannii D015 were investigated. The ...