Physical activity epidemiology is the study of patterns, risks, and effects of physical activity within populations. It plays a crucial role in understanding how physical activity influences health outcomes, such as reducing the risk of chronic diseases like cardiovascular disease, diabetes, and obesity. An important prerequisite is the accurate measurement of physical activity, which can be assessed ...

Iron is an essential micronutrient for phytoplankton and plays an integral role in the marine carbon cycle. The supply and bioavailability of iron are therefore important modulators of climate over glacial-interglacial cycles. Inputs of iron from the Antarctic continental shelf alleviate iron limitation in the Southern Ocean, driving hotspots of productivity. Glacial meltwater fluxes can deliver ...

The complete existing time series of K indices from Norwegian observatories in Tromsø (TRO), Dombås (DOB) and Bear Island (BJN) has been digitized. The digitized time series are continuous, spanning from 1939 (DOB) and 1947 (TRO) until 1998. Today, Tromsø Geophysical Observatory manages geomagnetic observations throughout Norway and K indices are calculated in real time with a fully automatic, ...

Industry 4.0 introduces a new approach to manufacturing, focusing on connecting and automating machines. Automated vehicles that can operate in a dynamic environment, will enable the move towards Industry 4.0 to require less manual effort. The approach will be to create a simulation of an environment, with several Automated Guided Vehicles, that use a reinforcement learning system to avoid ...

Migraine is a common chronic headache disorder characterizsed by episodes of moderate to severe headaches, resulting in a large personal- and societal burden. To address this, we implemented a mobile app solution aimed at enhancing continuous data collection and increasing data coverage for the Empatica E4 biometric sensor device. Our ultimate goal is to use this system in a future migraine event ...

Background - This study aims to understand how secondary use of health records can be done for prediction, detection, treatment recommendations, and related tasks in clinical decision support systems.<p> <p>Methods - Articles mentioning the secondary use of EHRs for clinical utility, specifically in prediction, detection, treatment recommendations, and related tasks in decision support were ...

The particulate organic carbon (POC) flux from the euphotic zone to the deep ocean is central to the biological carbon pump. It is typically evaluated using “export efficiency” and “transfer efficiency,” which reflect POC formation and sinking and carbon sequestration efficiency in the ocean's interior, respectively. Since observations of these metrics are limited, biogeochemical models can elucidate ...

Thanks to their high maneuverability, high flexibility, and low cost, unmanned aerial vehicles (UAVs) have been widely used for data collection in the Internet of Things (IoT). To deal with UAV's onboard battery limitation, UAV-to-UAV (U2U) wireless charging mechanism emerges as a promising solution for extending flight distance and reducing mission completion time. However, U2U charging mechanisms ...

The Arctic cryosphere is the epicentre of acute global change impact, with abrupt warming and amplification driving rapid sea ice decline and irreversible glacial ice loss. A key challenge is understanding how the cryosphere meltdown will impact Arctic marine carbon cycles and ecosystems. Here, we use organic geochemical biomarkers to trace the contribution of different planktonic groups to organic ...

<p>Ultrasound and photoacoustic microscopy hold great promise for deep tissue imaging with high resolution, offering different applications in biological research. The primary aim of this thesis is to perform correlative photoacoustic and ultrasound microscopy experiments on various biological samples. <p>This thesis discusses multiple imaging modes, including A-scan, B-scan, and C-scan, each ...