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Natural sampling and aliasing of marine geochemical signals.
Sci Rep
January 2025
Westchase Software, Houston, TX, 77063, USA.
It is well known that the sedimentary rock record is both incomplete and biased by spatially highly variable rates of sedimentation. Without absolute age constraints of sufficient resolution, the temporal correlation of spatially disjunct records is therefore problematic and uncertain, but these effects have rarely been analysed quantitatively using signal processing methods. Here we use a computational process model to illustrate and analyse how spatial and temporal geochemical records can be biased by the inherent, heterogenous processes of marine sedimentation and preservation.
View Article and Find Full Text PDFUsing transformer-based models and social media posts for heat stroke detection.
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Chubu Institute for Advanced Studies, Chubu University, Kasugai, Aichi, Japan.
Event-based surveillance is crucial for the early detection and rapid response to potential public health risks. In recent years, social networking services (SNS) have been recognized for their potential role in this domain. Previous studies have demonstrated the capacity of SNS posts for the early detection of health crises and affected individuals, including those related to infectious diseases.
View Article and Find Full Text PDFRespectful maternity care (RMC) is a topic that has received increasing focus among clinicians, researchers, and the public in recent years. While clinicians recognize the importance of respectful care, patients report that they are not consistently receiving it. The Association of Women's Health, Obstetric and Neonatal Nurses (AWHONN) created the RMC Framework, Evidence-Based Guidelines and Implementation Toolkit to provide nursing teams with the knowledge, tools, and structures they need to promote RMC.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
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Stevens Neuroimaging and Informatics Institute, Los Angeles, CA, USA.
Background: Positron emission tomography (PET) tau tracer PI-2620 frequently shows off-target meningeal binding (Figure 1). Of standard regions of interest, only lateral parietal (LP) is contaminated by this. We compare the standardized uptake value ratio (SUVR) in the LP before and after eroding the LP mask to remove meningeal contamination.
View Article and Find Full Text PDFClinical Manifestations.
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University of California, Davis, Sacramento, CA, USA.
Background: Researchers often divide heterogeneous samples into homogeneous subgroups for analysis. For example, a sample of participants with normal cognition, mild cognitive impairment (MCI), and dementia might be divided into subgroups to answer questions about whether some exposure variable (e.g.
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