In this paper, we derive two-sided estimates of the Lebesgue constants for bounded Vilenkin systems, we also present some applications of importance, e.g., we obtain a characterization for the boundedness of a subsequence of partial sums with respect to Vilenkin–Fourier series of H 1 martingales in terms of n's variation. The conditions given in this paper are in a sense necessary and sufficient.

Information about the human burdens of persistent organic pollutants (POPs) in low- and middle-income countries is limited. In particular, studies often include only a small subset of POPs. To address this data gap, we aimed to assess maternal-child exposures to POPs in Dhaka, Bangladesh. We quantified 16 organochlorine pesticides, 12 polychlorinated biphenyls, 21 brominated flame retardants, 18 ...

The species <i>Psoroma spinuliferum</i> is described here as new to science. It is only known from the holotype on a <i>Picea sitchensis</i> trunk near a sea-shore in southern, coastal Alaska. The species is distinct in having short, brittle, spinule-like hairs on both apothecium margins, thalline squamules and on pulvinate to coarsely coralloid cephalodia with emerald-colored <i>Nostoc</i> photobionts. ...

Since the summer of 2015, the ambiguous term Willkommenskultur has been part of the increasingly polarized migration debate in Germany. This ambiguous term is used in a variety of different contexts – political, social, historical – and seems to be part of the process of national identity construction. In using Willkommenskultur several German authors contextualized the term within the historical ...

<p><i>Objective</i>: To study self‐reported pain early in the disease course of juvenile idiopathic arthritis (JIA) as predictor of long‐term disease outcomes.</p> <p><i>Methods</i>: Consecutive cases of JIA with disease onset 1997‐2000 from defined geographical areas of Norway, Sweden, Finland and Denmark were prospectively enrolled in this population‐based cohort study. Self‐reported, disease‐related ...

Two sounding rocket payloads were launched from Andøya Space Centre (69.29 N, 16.02 E) during the summer of 2016 within the MAXIDUSTY campaign. Their payloads contained instrumentation aimed at investigating the characteristics of nanoscale aerosols in the upper summer mesosphere, and the role of these particles in phenomena like noctilucent clouds and polar mesospheric summer echoes (PMSE). The ...

I forbindelse med revidering av lov om barneverntjenester har det regjeringsoppnevnte Barnevernslovutvalget foreslått å avgrense barneverntjenestens forebyggingsansvar til å spesifikt omfatte de barn som er «i risiko», og som har «særlig behov» for bistand. Alle barn har imidlertid et menneskerettslig krav på trygge oppvekstvilkår. Barneverntjenesten har en særlig kompetanse og erfaring med barn i ...

Vertebral coalescence and malformation in the lateral line are reported in a specimen of cultured cyprinid fish <i>Hypophthalamichthys nobilis </i>. Severe vertebral fusion was observed and described. Lateral line showed unusual undulation in the trunk region. Genetic and epigenetic causes may be implicated in these anomalies.

During a mycology field course in Drøbak 29th August – 2nd September 2011 several interesting and some new taxa to Norway were found. Species not previously recorded in Norway include <i>Tatraea dumbirensis, Corollospora maritima, Nectriopsis candicans</i> and <i>Ombrophila juniperinella</i>. A list of 413 taxa, including records of three threatened species, is given and the ecology and distribution ...

<p><i>Background</i>: Evidence pertaining to whether more recent born generations of adults reaching old age have better physical capability than previous generations is scarce and inconclusive. We aimed to investigate birth cohort differences in grip strength.</p> <p><i>Methods</i>: The study comprised 5,595 individuals from the Tromsø study waves in 1994/1995, 2007/2008, and 2015/2016. Grip ...