Understanding the genetic and fitness consequences of anthropogenic bottlenecks is crucial for biodiversity conservation. However, studies of bottlenecked populations combining genomic approaches with fitness data are rare. Theory predicts that severe bottlenecks deplete genetic diversity, exacerbate inbreeding depression and decrease population viability.
View Article and Find Full Text PDFIEEE Trans Image Process
September 2024
We propose PhaseForensics, a DeepFake (DF) video detection method that uses a phase-based motion representation of facial temporal dynamics. Existing methods that rely on temporal information across video frames for DF detection have many advantages over the methods that only utilize the perframe features. However, these temporal DF detection methods still show limited cross-dataset generalization and robustness to common distortions due to factors such as error-prone motion estimation, inaccurate landmark tracking, or the susceptibility of the pixel intensity-based features to adversarial distortions and the cross-dataset domain shifts.
View Article and Find Full Text PDFThis study aimed to identify and analyze articles on enamel microabrasion for the treatment of white spot lesions. A search was conducted on the Web of Science. The following parameters were recorded and analyzed: number of citations, year, journal, impact factor, study design, theme, country and continent, institution, authors, and keywords.
View Article and Find Full Text PDFMicrobial relationships with roots influence many ecosystem functions and nutrient fluxes, including their sometimes-profound effects on plant health and productivity. Fine roots were often classified with a diameter less than 2 mm, but fine roots under that size perform distinct functional roles in the environment. Importantly, two broad functional categories of fine roots are and , with absorptive fine roots acting as metabolic hotspots for root activity.
View Article and Find Full Text PDFRapid climatic warming of the Antarctic Peninsula is driving regional population declines and distribution shifts of predators and prey. Affected species include Antarctic ice seals and the southern elephant seal, all of which rely on the peninsula region for critical stages of their life cycle. However, data collection is difficult in this remote region, and therefore long-term time series with which to identify and investigate population trends in these species are rare.
View Article and Find Full Text PDF