A Runway Safety System Based on Vertically Oriented Stereovision.

In 2020, over 10,000 bird strikes were reported in the USA, with average repair costs exceeding $200 million annually, rising to $1.2 billion worldwide. These collisions of avifauna with airplanes pose a significant threat to human safety and wildlife.

Comprehensive Bird Preservation at Wind Farms.

Wind as a clean and renewable energy source has been used by humans for centuries. However, in recent years with the increase in the number and size of wind turbines, their impact on avifauna has become worrisome. Researchers estimated that in the U.

Application of microsatellite-primed PCR (MSP-PCR) and PCR melting profile (PCR-MP) method for intraspecies differentiation of dermatophytes.

In this study, two PCR-based methods (MSP-PCR and PCR-MP) were compared for their abilities to identify intraspecies variations of 23 isolates of Trichophyton rubrum, 78 isolates of Trichophyton interdigitale and 22 isolates of Microsporum canis, obtained mainly from patients in Lódź city. The results allowed to distinguish four types (containing two subtypes) characteristic for T. interdigitale and three types characteristic for T.

[Sources of antibiotics in natural environments and their biological role].

Nowadays antibiotics are broadly used not only for treatment of bacterial infections but also in nonmedical applications. For many years they have been added as livestock and poultry growth supplements, and they are applied similarly in fish farming. In basically unchanged form they may get into the natural environment and remain there for a long time.

Identification of dermatophyte species using genomic in situ hybridization (GISH).

A genomic in situ hybridization (GISH)-based method for dermatophyte identification has been developed. Using specific GISH probes, discrimination between Trichophyton interdigitale, Trichophyton rubrum and Microsporum canis has been conducted. Moreover, GISH has been found particularly helpful when proper dermatophyte identification was difficult due to ambiguous PCR-RFLP patterns.

Direct and inverted repeats elicit genetic instability by both exploiting and eluding DNA double-strand break repair systems in mycobacteria.

Repetitive DNA sequences with the potential to form alternative DNA conformations, such as slipped structures and cruciforms, can induce genetic instability by promoting replication errors and by serving as a substrate for DNA repair proteins, which may lead to DNA double-strand breaks (DSBs). However, the contribution of each of the DSB repair pathways, homologous recombination (HR), non-homologous end-joining (NHEJ) and single-strand annealing (SSA), to this sort of genetic instability is not fully understood. Herein, we assessed the genome-wide distribution of repetitive DNA sequences in the Mycobacterium smegmatis, Mycobacterium tuberculosis and Escherichia coli genomes, and determined the types and frequencies of genetic instability induced by direct and inverted repeats, both in the presence and in the absence of HR, NHEJ, and SSA.

Breakpoints of gross deletions coincide with non-B DNA conformations.

Genomic rearrangements are a frequent source of instability, but the mechanisms involved are poorly understood. A 2.5-kbp poly(purine.