Filetype
Extremely thinned layers and possible folding make the dating of the deepest sections of ice cores especially challenging. Cosmogenic radionuclides have the potential to provide independent age estimates. The 36Cl/10Be ratio is largely independent of production rate changes that affect individual radionuclides and has an effective half-life of 384 kyr, making it an ideal tool for dating the new 1.
Levodopa provides effective symptomatic treatment for Parkinson's disease. However, nonmotor symptoms are often insufficiently relieved, and its long-term use is complicated by motor fluctuations and dyskinesia. To clarify mechanisms of levodopa-induced dyskinesia and pharmacological interventions aimed at reducing dyskinetic symptoms, we have here characterized the neurophysiological activity pat
In a global retrospective assessment, this study quantifies the potential impacts of croplands on biodiversity using the UNEP-Life Cycle Initiative's recommended method for land use that was proposed by the GLAM consensus working group for Global Guidance for Life Cycle Impact Assessment Indicators and Methods. The findings show the importance of using tools that account for both occupied area and
Disasters such as COVID-19 and the Russia–Ukraine war are drawing attention to the provisioning of food during crises. The main concern has been quickly establishing a stable food supply. However, climate change and public health concerns are shifting attention to the critical gap in identifying the minimal considerations that would adequately address ecological disaster food provisioning. A meta-
Although political governance guides education and research, there are options for researchers, educators and curators to act in the spirit of academic freedom. The deontological ethical guidelines stabilize the archaeological establishment no matter what kind of work. The utilitarian dimensions within archaeological research and higher education open up for critical thinking.Twisting and turning,
Comparative genomic analysis often involves visualization of alignments of genomic loci. While several software tools are available for this task, ranging from Python and R libraries to stand-alone graphical user interfaces, a tool is lacking that offers fast, automated usage and the production of publication-ready vector images. Here we present LoVis4u, a command-line tool and Python API designed
The paper identifies three interconnected scales of global politics in Artificial Intelligence (AI) and healthcare. It provides a multilevel framework for policy makers to situate hybrid-human AI collaborations in healthcare within broader global political concerns.
BACKGROUND: Lead is an established causal risk factor for coronary heart disease. Atherosclerosis may be the key mediator for this association, but evidence from studies in humans is limited. Our objective was to test the hypothesis that environmental lead exposure is associated with coronary atherosclerosis. METHODS: We used cross-sectional data from the SCAPIS (Swedish Cardiopulmonary Bioimage S
Climate change and land-use change represent a dual threat to terrestrial ecosystem functioning. In the tropics, forest conversion to agriculture is occurring alongside warming and more pronounced periods of drought. Rainfall after drought induces enormous dynamics in microbial growth (potential soil carbon storage) and respiration (determining carbon loss), affecting the ecosystem carbon budget.
How mergers affect galaxy formation depends on both feedback processes, and on the geometry and strength of the mergers themselves. We introduce the PARADIGM project, where we study the response of a simulated Milky-Way-mass galaxy (M200c ∼ 1012 M at z = 0) forming in a cosmological setting to differing merger histories, using genetically modified initial conditions, each simulated with the VINTER
Accurate quantification in emission tomography is essential for internal radiopharmaceutical therapy dosimetry. Mean activity concentration measurements in objects with diameters less than 10 times the full width at half maximum of the imaging system’s spatial resolution are significantly affected (>10%) by the partial-volume effect. This study develops a framework for PET and SPECT spatial resolu
Low birthweight is a risk factor for type 2 diabetes. We hypothesised that differential associations between birthweight and clinical characteristics in persons with and without type 2 diabetes may provide novel insights into the role of birthweight in type 2 diabetes and its progression. We analysed UK Biobank data from 9,442 persons with and 254,446 without type 2 diabetes. Associations between
Typical analyses of otolith microchemistry use calcium, a major constituent, as an internal standard, setting its value as a constant and ignoring any potential variations. In fact, patterns do occur in otolith Ca deposition, as can be observed either by repeating the analysis, by creating two-dimensional maps of Ca, or both. Here we present evidence of Ca variations in fish otoliths from analyses
Healthcare policy making is complex, requiring both human expertise and data-driven support. Agent-based Social Simulations (ABSS) provide a powerful tool for testing the potential consequences of healthcare policy interventions in a controlled environment. By integrating computational modeling with expert knowledge, ABSS enable hybrid-human policy collaborations, where simulation results support
Globally, freshwater ecosystems are threatened by multiple stressors, yet our knowledge of how they interact to affect food web structure remains scant. To address this knowledge gap, we conducted a large-scale mesocosm experiment to quantify the single and combined effects of three common anthropogenic stressors: warming, increased nutrient loading, and insecticide pollution, on the network struc
We present an interactive agent-based model that showcases Spain’s organ donation policy approach if applied to Sweden. The gamified experience fosters an understanding of complex public health policies.
