Background: A priority for conservation is the identification of endemic populations. We developed microsatellite markers for common raven (Corvus corax), a bird species with a Holarctic distribution, to identify and assess endemic populations in Alaska.
Results: From a total of 50 microsatellite loci, we isolated and characterized 15 loci. Eight of these loci were polymorphic and readily scoreable. Eighteen to 20 common ravens from Fairbanks, Alaska were genotyped showing the following variability: 3-8 alleles per locus, 0.25-0.80 observed heterozygosity (Ho), and 0.30-0.80 expected heterozygosity (He). All loci were in Hardy-Weinberg equilibrium and linkage equilibrium and many loci amplified and were polymorphic in related taxa.
Conclusions: These loci will be used to identify endemic populations of common raven and assess their genetic diversity and connectivity.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4636899 | PMC |
http://dx.doi.org/10.1186/s13104-015-1643-5 | DOI Listing |
Between 21 September and 6 December 2024, 657 highly pathogenic avian influenza (HPAI) A(H5N1) and A(H5N5) virus detections were reported in domestic (341) and wild (316) birds across 27 countries in Europe. Many HPAI outbreaks in domestic birds were clustered in areas with high poultry density and characterised by secondary farm-to-farm spread. Waterfowl, particularly the mute swan, were primarily affected during this reporting period, with HPAI virus detections focused on south-eastern Europe.
View Article and Find Full Text PDFLasers Surg Med
January 2025
Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Background: Noninvasive aesthetic procedures for facial rejuvenation are gaining popularity. Conventional treatments, such as radiofrequency (RF) and high-intensity focused ultrasound (HIFU), primarily improve skin quality but do not address the deeper musculoaponeurotic structures that affect facial laxity. A novel approach that delivers synchronized RF with high intensity facial electrical stimulation (HIFES) thought to target both the skin and underlying musculoaponeurotic framework to effectively enhance facial laxity has been investigated.
View Article and Find Full Text PDFAesthet Surg J
January 2025
Department of Pediatrics, McMaster University, Hamilton, ON, Canada.
Background: FACE-Q Aesthetics scales assess patient-important outcomes following both surgical/nonsurgical facial cosmetic interventions. Convergent validity is the degree to which the scores of one measurement relate to another measuring a similar construct.
Objectives: This study aims to establish the convergent validity of 11 FACE-Q Aesthetics appearance scales using the MERZ Aesthetics scales.
Sci Rep
January 2025
Department of Behavioral and Cognitive Biology, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.
Object play has been proposed to provide individuals with information about their environment, facilitating foraging skills and tool use. In species where object play co-occurs with locomotor or social play, it may have additional functional implications, such as facilitating the evaluation of peers or forming social bonds. For instance, ravens judge others' competitiveness via play caching and engage in social play by exchanging objects.
View Article and Find Full Text PDFBMC Psychol
December 2024
Beijing Infinite Brain Technology Co., Ltd, Beijing, 100022, PR China.
Background: Traditional cognitive assessments, often reliant on paper-and-pencil tests and professional evaluators, suffer from subjectivity and limited result discrimination. This study introduces the Baguan Online Cognitive Assessment System (BOCAS), a tablet-based system that evaluates both general cognitive ability (GCA) and domain-specific functions across six domains: sensory-motor skills, processing speed, sustained attention, working memory, cognitive flexibility, and spatial ability.
Methods: BOCAS was validated with 151 healthy Chinese adults aged 18-40.
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