Optical characteristics of coloured glasses doped with transition metal ions

Praca dotyczy wytworzenia nieorganicznych szkieł krzemianowych i borokrzemianowych o składach zbliżonych do składu szkieł gospodarczych, barwionych na niebiesko i zielono przy zastosowaniu odpowiednio dobranych, pod względem jakościowym i ilościowym, związków metali przejściowych: CoO i K2Cr2O7. Przeprowadzono charakterystykę optyczną dla otrzymanych szkieł określając wpływ jonów barwiących na przebieg krzywych transmisyjnych i absorpcyjnych. Praca prezentuje ogólnie znane i najpowszechniej wykorzystywane metody do opisu graficznej i liczbowej charakterystyki barwy badanych szkieł barwnych w oparciu o przestrzenie trójwymiarowe: układ CIE XYZ i CIE Lab.The paper concerns the fabrication of inorganic silicate and borosilicate glasses based on the chemical compositions of the industrial glasses. The examinated glasses were coloured on the green and blue by doped of chosen transition metal compounds: CoO and K2Cr2O7. Optical characteristics of coloured glasses were used to determine influence of the colouring ions on the transmission and absorption spectra. This paper presents the most often used methods to define graphical and numerical characteristics of coloured glasses based on colour spaces: CIE XYZ and CIE Lab

Defining the scope of the European Antimicrobial Resistance Surveillance network in Veterinary medicine (EARS-Vet): A bottom-up and One Health approach

Background: Building the European Antimicrobial Resistance Surveillance network in Veterinary medicine (EARS-Vet) was proposed to strengthen the European One Health antimicrobial resistance (AMR) surveillance approach. Objectives: To define the combinations of animal species/production types/age categories/bacterial species/specimens/antimicrobials to be monitored in EARS-Vet. Methods: The EARS-Vet scope was defined by consensus between 26 European experts. Decisions were guided by a survey of the combinations that are relevant and feasible to monitor in diseased animals in 13 European countries (bottom-up approach). Experts also considered the One Health approach and the need for EARS-Vet to complement existing European AMR monitoring systems coordinated by the ECDC and the European Food Safety Authority (EFSA). Results: EARS-Vet plans to monitor AMR in six animal species [cattle, swine, chickens (broilers and laying hens), turkeys, cats and dogs], for 11 bacterial species (Escherichia coli, Klebsiella pneumoniae, Mannheimia haemolytica, Pasteurella multocida, Actinobacillus pleuropneumoniae, Staphylococcus aureus, Staphylococcus pseudintermedius, Staphylococcus hyicus, Streptococcus uberis, Streptococcus dysgalactiae and Streptococcus suis). Relevant antimicrobials for their treatment were selected (e.g. tetracyclines) and complemented with antimicrobials of more specific public health interest (e.g. carbapenems). Molecular data detecting the presence of ESBLs, AmpC cephalosporinases and methicillin resistance shall be collected too. Conclusions: A preliminary EARS-Vet scope was defined, with the potential to fill important AMR monitoring gaps in the animal sector in Europe. It should be reviewed and expanded as the epidemiology of AMR changes, more countries participate and national monitoring capacities improve