We investigate the influence of charged dust on the incoherent scatter from the D-region ionosphere. Incoherent scatter is observed with high-power, large aperture radars and results from electromagnetic waves scattering at electrons that are coupled to other charged components through plasma oscillations. The influence of charged dust can hence be considered an effect of dusty plasma. The D-region ...

Objectives. &e present review aims to give an overview of the literature focusing on novel genetic aspects of dental erosion and dental caries. Once the tooth erupts into the oral cavity, the regenerative capability of enamel is fundamentally limited due to the loss of dental epithelium during eruption. &e susceptibility or resistance to dental erosion and caries is presumably a result of environmental, ...

This longitudinal study examined the development of narrative micro- and macrostructure in Japanese-English bilingual returnee children. Returnees are children of immigrant families who move to a foreign country, spending a significant portion of their formative developmental years in the foreign majority language context before returning to their native language environment. The returnees did ...

The rising prevalence of diabetes is threatening global health. It is known not only for the occurrence of severe complications but also for the SARS-Cov-2 pandemic, which shows that it exacerbates susceptibility to infections. Current therapies focus on artificially maintaining insulin homeostasis, and a durable cure has not yet been achieved. We demonstrate that our set of small molecule ...

The traditional mixing ventilation is not an energy effective approach to remove indoor air pollutants, maintain breath zone air quality, and control the airborne transmission. This study investigated the potential of a localized laminar airflow ventilation system to alleviate human exposure to pollutants. Breathing thermal manikins with sitting posture and supine posture were used to simulate the ...

Chemical responses of tundra vegetation and tundra soil to environmental changes are likely to differ, with implications for ecosystem functioning, yet they are rarely compared. Here, we aimed at comparing sensitivity and magnitude of short-term carbon and nitrogen responses of three main tundra ecosystem compartments: vascular plants, mosses, and soil, to two environmental perturbations: herbivore ...

Background: Indications and optimal timing for surgical treatment of degenerative cervical myelopathy (DCM) remain unclear, and data from daily clinical practice are warranted.<p> <p>Objective: To investigate clinical outcomes following decompressive surgery for DCM. Methods: Data were obtained from the Norwegian Registry for Spine Surgery. The primary outcome was change in the neck disability index ...

The characteristics of turbulent plasma in the winter cusp ionosphere is studied based on in-situ data from the Investigation of Cusp Irregularities (ICI) sounding rockets. The electron density fluctuations from ICI-2 and ICI-3 missions have been analyzed for the whole flight, using advanced timeseries analysis techniques. The analysis of the autocorrelation scale is indicative of the turbulence ...

This article sheds new light on previous perceptions of good relations between the occupant forces and the Sami minority in Finland and Norway between 1941 and 1944. The preconditions and varieties of relations and encounters are researched: those relating to the Gestapo and to Valpo, the Finnish state police, as well as to the Lebensborn. Sources utilized consist of archival material produced by ...

Reiselivet i hele verden har vært hardt rammet av Covid-19-pandemien. Denne oppgaven undersøker hvordan et lite utvalg naturbaserte reiselivsbedrifter har opplevd og håndtert covid-19-pandemien. Studien ser på hvilke påvirkninger som har hatt betydning for håndteringen. Studiens problemstilling er Hvordan har naturbaserte reiselivsbedrifter opplevd og håndtert Covid-19 pandemien? Studien ...