Over the last decade or so the term "burden" has become frequently encountered in manuscripts discussing atrial fibrillation (AF). AF "burden" is perhaps most commonly encountered in the electrophysiological context - the amount of time the patient is in AF out of the total monitored time (i.e., the percent of time one is in AF). However, "burden" in AF may also be used in other contexts, which...

During the recent decades, the design and construction of underground spaces into rock salt have been particularly regarded for storing petroleum fluids, natural gas, and compressed air energy, and also for disposing nuclear and chemical wastes. The rock salt hosting such spaces will be subjected to various types of monotonic/cyclic, short-term/long-term stresses during the construction and/or ...

Research using data for the United States has pointed towards a long-term pattern of falling migration rates. Similar research in England and Wales also found declining rates when observing all migrants. Using Office National Statistics Longitudinal Study (ONS LS), we study patterns observed over 10-year periods persons birth cohorts each intercensal period from 1971–1981 through to 2001–2011. ...

In this study, we examined the long-term spatiotemporal trend of marine heatwaves (MHW) and cold spells (MCS) characteristics in southern North Sea over last four decades (1982-2021). We then estimated difference between their annual mean values possible relationship with large-scale climate modes natural sea surface temperature (SST) atmospheric variability using satellite SST data. The warmin...

Abstract Three local bifurcations in DC-DC converters are reviewed. They are period-doubling bifurcation, saddle-node bifurcation, and Neimark bifurcation. A general sampled-data model is employed to study types of loss of stability of the nominal (periodic) solution and their connection with local bifurcations. More accurate prediction of instability and bifurcation than using the averaging ap...

Building on recent studies, we attempt hemiWarm Epoch (though Lamb, examining evidence mostly spheric temperature reconstructions with proxy data netfrom western Europe, never suggested this was a global works for the past millennium. We focus not just on the phenomenon). We here apply the methodology detailed by reconstructions, but the uncertainties therein, and imporMBH98 to the sparser prox...

OVERVIEW Digital data play an increasingly important role in how we understand the present and past. The challenges inherent understanding using digital are as intellectually demanding any other archaeological research endeavor. For these reasons, management cannot be regarded a simple compliance or technical issue. to meaningfully preserved used rigorous ways, they need integrated fully into a...

a study of substantial anthropogenic related pollution in the coastal samut prakarn province (thailand) was carried out focusing on the bang pu nature reserve (remnant mangrove wetland) using a remote sensing (geospatial) technique. statistical regression models were developed between biochemical parameters of sample point and related reflectance data obtained from satellite imagery (landsat tm...