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Abstract Earth’s hum at higher frequencies is disturbed substantially by human activity. Anthropogenic noise more evident in than 1 Hz. The power 10 Hz used from January 2020 to early May (mostly first wave of SARS-CoV-2) across various sites the world, show that there a clear decrease during lockdown period. Furthermore, this anthropogenic world COVID-19 period, within which vehicular movement...

The introduction of Health and Usage Monitoring (HUM) and Flight Data Recording (FDR) systems represented a major advance in both the monitoring and management of helicopters. A considerable amount of in-service experience has now been gained and a clear picture has emerged of the benefits being provided by these systems. The paper reviews the HUM/FDR experience to date to assess the extent to ...

how to cite this article: schulz a, kohlschütter a. ncl disorders: frequent causes of childhood dementia. iran j child neurol. 2013 winter;7(1):1-8. abstract dementia in children or young adults is most frequently caused by neuronal ceroidlipofuscinoses (ncl), a group of incurable lysosomal storage disorders linked by the accumulation of a characteristic intracellular storage material and progr...

E lk {Cervus elaphus) are increasing in fragm ented landscapes tha t result from exurban hum an developm ent th roughout western N orth America, w hich increases hum an-w iidiife conflicts and poses a challenge to w ildlife managers. E lk hunting m ust often he intensively m anaged to reduce population growth rate, crop depredation, and habituation to hum ans. However, little was know n about t...

Image bias is a usual phenomenon in MR imaging when using surface coils. It complicates the interpretation as well as the algorithmic postprocessing of such data. We introduce a bias correction algorithm based on homomorphic unsharp masking (HUM) that is applicable on a broad range of image types (as long as foreand background is separable), simple, fast and requires only minimal user interacti...

It has been explained previously how using large dimensional signal-subspaces can reduce/eliminate bias in the estimated fMRI response (Burock and Dale [2000]: Hum Brain Mapp 11:249-260). It has also been explained how one can project this less biased estimate onto a one-dimensional subspace of interest (Burock and Dale [2000]: Hum Brain Mapp 11:249-260). In cases where there are multiple, corr...

Normal human bone marrow contains cells that form granulocytic colonies in fibrin clot diffusion chambers implanted intraperitoneally in sublethally irradiated mice (CFU-d) A series of experiments was performed to determine the relationship between CFU-d and the cells that form colonies in agar culture in vitro (CFU-c). Low-density bone marrow cells ( < 1 070 g/cm3) were separated by velocity s...

S U M M A R Y The recent discovery that the seismic normal modes of the Earth are excited to a nearly constant level during seismically quiet days (‘the hum of the Earth’) has lead to much speculation as to what drives the observed background in the absence of large earthquakes. Other authors have shown that the hum cannot be explained by the many small earthquakes occurring each day and have a...