Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7787691 | PMC |
http://dx.doi.org/10.7326/M20-0235 | DOI Listing |
Sci Rep
December 2024
Canada Centre for Remote Sensing, Canada Centre for Mapping and Earth Observation, Natural Resources Canada, 580 Booth Street, Ottawa, ON, K1A 0E4, Canada.
Permafrost ground temperature and its spatial distribution are usually calculated using one-dimensional models based on heat flow in the vertical direction. Here, we theoretically calculated the impacts of lateral conductive heat flow on ground temperature under equilibrium and transient conditions. The results show that lateral heat flow has strong impacts on ground temperature, especially in deep ground.
View Article and Find Full Text PDFNat Commun
December 2024
Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.
Record breaking atmospheric methane growth rates were observed in 2020 and 2021 (15.2±0.5 and 17.
View Article and Find Full Text PDFNat Commun
December 2024
Department of Biomedicine, Aarhus University, 8000, Aarhus C, Denmark.
CD163, a macrophage-specific receptor, plays a critical role in scavenging hemoglobin released during hemolysis, protecting against oxidative effects of heme iron. In the bloodstream, hemoglobin is bound by haptoglobin, leading to its immediate endocytosis by CD163. While haptoglobin's structure and function are well understood, CD163's structure and its interaction with the haptoglobin-hemoglobin complex have remained elusive.
View Article and Find Full Text PDFsurgery for rectal cancer often presents multiple tactical and technical challenges due to factors such as the tumor's extent, limited anatomical space, proximity to the anal sphincter complex, and the use of neoadjuvant radiotherapy. These factors can significantly increase the complexity of surgery and the risk of both immediate and delayed complications, which can occur intraoperatively or postoperatively. Objective: the aim of this study was to retrospectively analyze the causes, diagnostic methods, and management of complications in patients who underwent surgery for rectal cancer.
View Article and Find Full Text PDFEcol Lett
January 2025
Department of Anthropology, University of Utah, Salt Lake City, Utah, USA.
Modern African ungulates navigate seasonal variation in resource availability through diet-switching (primarily mixed-feeders) and/or migrating (primarily grass grazers). These ecological generalisations are well-documented today, but the extent to which they apply to the non-analog ecosystems of the Pleistocene are unclear. Drawing from serially-sampled stable isotope measurements from 18 Kenyan large herbivore species from the Last Glacial Period (LGP), we evaluate how diet, diet-switching, and migration compare to observations from present-day settings.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!