A new release of the Max Planck Institute for Meteorology Earth System Model version 1.2 (MPI-ESM1.2) is presented. The development focused on correcting errors in and improving the physical processes representation, as well as improving the computational performance, versatility, and overall user friendliness. In addition to new radiation and aerosol parameterizations of the atmosphere, several relatively large, but partly compensating, coding errors in the model's cloud, convection, and turbulence parameterizations were corrected. The representation of land processes was refined by introducing a multilayer soil hydrology scheme, extending the land biogeochemistry to include the nitrogen cycle, replacing the soil and litter decomposition model and improving the representation of wildfires. The ocean biogeochemistry now represents cyanobacteria prognostically in order to capture the response of nitrogen fixation to changing climate conditions and further includes improved detritus settling and numerous other refinements. As something new, in addition to limiting drift and minimizing certain biases, the instrumental record warming was explicitly taken into account during the tuning process. To this end, a very high climate sensitivity of around 7 K caused by low-level clouds in the tropics as found in an intermediate model version was addressed, as it was not deemed possible to match observed warming otherwise. As a result, the model has a climate sensitivity to a doubling of CO over preindustrial conditions of 2.77 K, maintaining the previously identified highly nonlinear global mean response to increasing CO forcing, which nonetheless can be represented by a simple two-layer model.
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http://dx.doi.org/10.1029/2018MS001400 | DOI Listing |
Cureus
December 2024
Medical School, King Faisal University, Al Ahsa, SAU.
Background Cosmetic procedures have become increasingly popular worldwide; however, male participation remains relatively low, especially in conservative societies like Saudi Arabia. This study explores the awareness, attitudes, and experiences of men concerning aesthetic procedures in Saudi Arabia, with a focus on sociodemographic factors and sources of information. This study aimed to assess male awareness, attitudes, and experiences with aesthetic procedures in Saudi Arabia and identify factors influencing their engagement with these interventions.
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December 2024
College of Medicine, Alfaisal University, Riyadh, SAU.
Smell and taste sensations have been linked to positive outcomes in the feeding of premature infants, though the impact on the time required to transition to oral feeding remains unclear. This study aimed to evaluate the beneficial effects of smell and taste interventions on clinical outcomes in preterm infants. We conducted a search in PubMed, Scopus, Web of Science, and the Cochrane Central Register of Controlled Trials from inception through September 2024 for randomized controlled trials (RCTs) examining the effects of smell and taste on clinical outcomes in preterm infants with a gestational age of less than 34 weeks.
View Article and Find Full Text PDF3 Biotech
January 2025
Department of Anesthesiology, the Second Affiliated Hospital of Nanchang University, Nanchang, 330006 Jiangxi China.
Unlabelled: The aim of this research is to investigate whether ferroptosis occurs in the pathogenesis of perioperative neurocognitive disorders (PND), and to explore the function and underlying molecular mechanism of tsRNA in the regulation of ferroptosis in PND. A PND aged mice model was established and behavioral changes and ferroptosis occurrence were confirmed. The effect of ferroptosis inhibitor ferrostatin-1 (Fer-1) on PND mice was detected.
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January 2025
Plant Cell Biotechnology (PCBT) Department, Central Food Technological Research Institute (CFTRI), Mysuru, 570 020 India.
Unlabelled: The present study evaluated the effects of 5-methyltetrahydrofolate (5-MTHF) and aqueous extract on diabetes. An in silico docking study with select bioactive compounds showed strong binding affinities of folates with glucose metabolism-related proteins. In vitro assay showed 5-MTHF's superior inhibitory activity on alpha-amylase compared to folic acid.
View Article and Find Full Text PDFBiogeochemistry
December 2024
Department of Natural Resources and the Environment, University of New Hampshire, 56 College Road, Durham, NH USA.
Unlabelled: Climate and atmospheric deposition interact with watershed properties to drive dissolved organic carbon (DOC) concentrations in lakes. Because drivers of DOC concentration are inter-related and interact, it is challenging to assign a single dominant driver to changes in lake DOC concentration across spatiotemporal scales. Leveraging forty years of data across sixteen lakes, we used structural equation modeling to show that the impact of climate, as moderated by watershed characteristics, has become more dominant in recent decades, superseding the influence of sulfate deposition that was observed in the 1980s.
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