Publications
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About Face: Matching Unfamiliar Faces Across Rotations of View and Lighting KU Leuven
Matching the identities of unfamiliar faces is heavily influenced by variations in their images. Changes to viewpoint and lighting direction during face perception are commonplace across yaw and pitch axes and can result in dramatic image differences. We report two experiments that, for the first time, factorially investigate the combined effects of lighting and view angle on matching performance for unfamiliar faces. The use of ...
Towards retro-projected robot faces: an alternative to mechatronic and android faces Ghent University
This paper presents a new implementation of a robot face using retro-projection of a video stream onto a semi-transparent facial mask. The technology is contrasted against mechatronic robot faces, of which Kismet is a typical example, and android robot faces, as used on the Ishiguro robots. The paper highlights the strengths of Retro-projected Animated Faces (RAF) technology (with cost, flexibility and robustness being notably strong) and ...
Comparison of microbiota, antimicrobial resistance genes and mobile genetic elements in flies and the feces of sympatric animals Ghent University
A bioanalytical screening method for Enterococcus faecalis RNPP-type quorum sensing peptides in murine feces Ghent University
Distribution of non-aureus staphylococci from quarter milk, teat apices, and rectal feces of dairy cows, and their virulence potential Research Institute for Agriculture, Fisheries and Food Ghent University
Non-aureus staphylococci (NAS) are predominantly isolated from bovine milk samples of quarters suffering from subclinical mastitis. They are also abundantly present on dairy cows' teat apices and can be recovered from bovine fecal samples, as recently described. Differences in ecology, epidemiology, effect on udder health, and virulence or protective traits have been reported among the species within this group. The objectives of this study were ...
Development and validation of liquid chromatography-tandem mass spectrometry methods for the quantification of cefquinome, ceftiofur, and desfuroylceftiofuracetamide in porcine feces with emphasis on analyte stability Ghent University
Cefquinome and ceftiofur are β-lactam antibiotics used for the treatment of bacterial infections in swine. Although these antimicrobials are administered intramuscularly, the exposure of the gut microbiota to these cephalosporins is not well described. This exposure can contribute to the emergence and spread of antimicrobials in the environment and to the possible spread of antimicrobial resistance genes. To assess the impact of drug ...
An alternative, sensitive method to detect Helicobacter pylori DNA in feces Institute of Tropical Medicine
Background: Despite the high sensitivity and specificity of PCR, detection of Helicobacter pylori DNA in feces is still challenging. Fecal samples contain inhibitory molecules that can prevent amplification of the target DNA. Even by using specific DNA extraction kits for stools, monitoring of infection by analyzing stool samples remains problematic and endorses the need for improved diagnostic methods. Materials and Methods: The newly proposed ...
Campylobacter troglodytis sp. nov., isolated from feces of human-habituated wild chimpanzees (Pan troglodytes schweinfurthii) in Tanzania Research Institute for Agriculture, Fisheries and Food Ghent University
The transmission of simian immunodeficiency and Ebola viruses to humans in recent years has heightened awareness of the public health significance of zoonotic diseases of primate origin, particularly from chimpanzees. In this study, we analyzed 71 fecal samples collected from 2 different wild chimpanzee (Pan troglodytes) populations with different histories in relation to their proximity to humans. Campylobacter spp. were detected by culture in ...
A DNA sequence capture extraction method for detection of Mycobacterium avium subspecies paratuberculosis in feces and tissue samples Royal Zoological Society of Antwerp
Culturing of Mycobacterium avium subspecies paratuberculosis (Map) remains difficult and is time consuming. An alternative for the rapid detection of Map in samples is PCR. We have developed a sensitive DNA-extraction method based on sequence capture for the rapid detection of M. avium subspecies paratuberculosis by PCR in fecal and tissue samples. The method detected 10(2) Map/g feces using spiked samples, and reached a diagnostic sensitivity ...