Shades of red: A chemical exploration of pigments and dyes in 19th century postage stamps by a multi-analytical methodology.

A total of 57 European, Canadian and North American postage stamps, all in red shades, were analyzed with the main goal of unraveling which pigments or dyes were used to produce the red color in the period dated from 1841 to 1899. Both non-destructive techniques, including X-Ray Fluorescence (XRF), Fiber Optics Reflectance Spectra (FORS), and Steady State Fluorescence Spectroscopy, and destructive methods such as High-Performance Liquid Chromatography coupled with Diode-Array Detection (HPLC-DAD) and Electrospray Ionization High-Resolution Mass Spectrometry (ESI-HRMS), were utilized for a comprehensive analysis. The examined red shades were identified as originating from either a single pigment or dye, or a combination of both.

The Peritubercle Lucency Sign as a Considerable Predictive Factor for Contralateral Hip Slippage in Unilateral Slipped Capital Femoral Epiphysis Cases.

 To determine whether the radiographic parameter at the epiphyseal tubercle region (peritubercle lucency sign) on the unaffected side can predict slipped capital femoral epiphysis (SCFE).  We retrospectively reviewed patients who received an initial diagnosis of unilateral SCFE between 1995 and 2020 at a pediatric hospital in a Brazilian state's capital. The patients were monitored for at least 18 months.

Biochar supplementation affects the microbiome of recycled manure solids for cow bedding: a metagenomic analysis.

The widespread use of Recycled Manure Solids (RMS) as cow bedding material is not without risks, since cattle manure may act as a vehicle for pathogenic and antimicrobial resistant bacteria dissemination. Thus, our aim was to evaluate RMS-supplemented with a pine biochar produced in Portugal as a new cow bedding material, since the use of biochar has been shown to have the potential to mitigate the impact of relevant bacterial species when added to animal manure microbiota. Our experimental setup consisted on fresh RMS samples that were collected on a commercial dairy farm and placed in naturally-ventilated containers for a total of 4 groups: 1-non-supplemented RMS; 2-RMS supplemented with 2.

Systematic review on the effectiveness of Brucella abortus S19 and RB51 vaccine strains in field studies.

Brucella abortus S19 and RB51 are the most used vaccines to control bovine brucellosis worldwide; therefore, this study aimed to perform a systematic review on the effectiveness of these two vaccine strains in field studies. The literature review was conducted on April 3rd 2020 on six databases (CABI, Cochrane, PubMed, Scielo, Scopus and Web of Science) and included papers published between 1976 and 2016. The search strategy recovered a total of 5846 papers on databases and 6 papers were included due to specialists' suggestions.

Evaluation of Exomass-Related Artefacts Caused by Dental Implants of Different Materials in Cone-Beam Computed Tomography Scans: An Ex Vivo Study.

Objectives: To evaluate the influence of different dental implant materials within the exomass on the image quality in cone-beam computed tomography (CBCT).

Material And Methods: Five pig jaws were scanned using four CBCT devices, first without any dental implants, followed by scans with three dental implants of the same material-pure titanium, titanium-zirconium alloy, and zirconium dioxide. Two fields of view (FOVs) were used for each device to position the implants in the exomass of a small FOV and within a large FOV.