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Linking Fire, Food Webs, and Fish in Stream Ecosystems.
Ecosystems
January 2025
Oregon State University, Department of Forest Ecosystems & Society, Corvallis, Oregon USA.
Article Synopsis
- Wildfire regimes are altering, raising concerns for aquatic ecosystems and fish species, as predicting fish responses can be complex due to multiple wildfire impacts.
- Whole-ecosystem approaches like food web modeling can help understand these interactions, showing how different wildfire severities affect aquatic life dynamics in streams.
- Simulations reveal that wildfires can have varying effects on periphyton, invertebrates, and fish biomass, influenced by fire severity and environmental changes, indicating a need to consider context when assessing wildfire impacts on aquatic ecosystems.
Skin shade and relationships: how colourism pits Black and mixed Black-White women against each other.
Front Sociol
December 2024
Centre for Appearance Research, School of Social Sciences, University of the West of England, Bristol, United Kingdom.
Introduction: Colourism, prejudice where people are penalised the darker their skin and the further their features are from those associated with whiteness, occurs within and between racialised groups and can affect relationships. In this paper we examine the complex processes through which colourism positions Black and mixed Black-White women in contrasting positions in beauty and desirability hierarchies based on their skin shade.
Method: Semi-structured interviews were conducted with 27 Black ( = 18) or mixed Black-White ( = 9) adults (18 women, 9 men) living in Britain.
3D Bioprinting of Graphene Oxide-Incorporated Hydrogels for Neural Tissue Regeneration.
3D Print Addit Manuf
December 2024
Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, Hong Kong.
Bioprinting has emerged as a powerful manufacturing platform for tissue engineering, enabling the fabrication of 3D living structures by assembling living cells, biological molecules, and biomaterials into these structures. Among various biomaterials, hydrogels have been increasingly used in developing bioinks suitable for 3D bioprinting for diverse human body tissues and organs. In particular, hydrogel blends combining gelatin and gelatin methacryloyl (GelMA; "GG hydrogels") receive significant attention for 3D bioprinting owing to their many advantages, such as excellent biocompatibility, biodegradability, intrinsic bioactive groups, and polymer networks that combine the thermoresponsive gelation feature of gelatin and chemically crosslinkable attribute of GelMA.
View Article and Find Full Text PDFPerceived intrinsic 3D shape of faces is robust to changes in lighting direction, image rotation and polarity inversion.
Vision Res
December 2024
University of Essex, Department of Psychology, Wivenhoe Park, Colchester, CO4 3SQ, Essex, UK; University of Suffolk, Institute of Health and Wellbeing, Ipswich, IP4 1QJ, Suffolk, UK.
Face recognition from 2D images is influenced by various factors, including lighting conditions, viewing direction, rotation, and polarity inversion. It has been proposed that these techniques affect face recognition by distorting shape from shading. This study investigates the perception of 3D face shape in 2D images using a gauge figure task.
View Article and Find Full Text PDFEffect of aging on the translucency of lithium disilicate and zirconia reinforced lithium silicate ceramics: An study.
Heliyon
December 2024
Prosthodontic Department, College of Medicine and Dentistry, Riyadh Elm University, Riyadh, Saudi Arabia.
Background: Translucency of dental ceramics have great impact on the esthetic and success of dental restorations. The goal of the study is to investigate the effect of the aging process on the translucency of zirconia-reinforced lithium silicate ceramic material, and lithium disilicate ceramic material made using CAD/CAM and press processes.
Methods: Thirty disc-shaped specimens with 0.
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