Nitrogen and sulfur are key elements in the biogeochemical cycles of marine ecosystems to which benthic foraminifera contribute significantly. Yet, cell-specific assimilation of ammonium, nitrate and sulfate by these protists is poorly characterized and understood across their wide range of species-specific trophic strategies. For example, detailed knowledge about ammonium and sulfate assimilation

We introduce a family of stochastic optimization methods based on the Runge–Kutta–Chebyshev (RKC) schemes. The RKC methods are explicit methods originally designed for solving stiff ordinary differential equations by ensuring that their stability regions are of maximal size. In the optimization context, this allows for larger step sizes (learning rates) and better robustness compared to e.g. the p

Due to the current fast-paced business environment, new approaches to product development (PD) have been requested. In that matter, the agile approach has gained interest among researchers and practitioners. Based on its positive results in the software industry, it has started to be adopted in the manufacturing industry. Nevertheless, there are factors that manufacturing companies must consider w

I avhandlingen undersöks vilka störningar i entreprenadavtal som kan ge entreprenören rätt till tidsförlängning.Med störning avses i avhandlingen en omständighet som avviker från vad entreprenören förutsatt (antagit) senast vid avgivandet av sitt löfte (anbud) att ingå avtalet som gör att entreprenörens arbeten inte kan utföras som planerat och som orsakar tillkommande kostnader, en försening elle

The contribution of the understorey vegetation to the spectral reflectance from the top of a forest canopy was investigated by the use of a forest canopy reflectance model. Detailed field data, i.e. forest leaf area index (LAI), tree structural parameters like the height, diameter and crown length of the trees, and the composition, distribution and reflectance of the forest floor, was collected fo

Summary: Geografisk informationsbehandling baseras på insamling, lagring, analys och visualisering av geografiska data. Denna indelning utgör också grunden för bokens disposition. Boken är i första hand avsedd för introducerande kurser vid universitet och högskolor men vissa delar är lämpliga även på avancerad nivå. Den är också utmärkt för yrkesverksamma inom GIS som vill öka sina teoretiska kuns

Control charts have typically been constructed using estimators obtained under assumptions of data independence and a given distribution of data. Here, I deal with cases in which neither of these conditions are satisfied. In particular, I consider the case of data obtained from a first-order autoregressive (AR(1)) time series model that have been contaminated by outlying process observations. I fi

Aim: The provision of acute care to persons with mental health problems is challenging due to difficulties in encountering this group and the vulnerability of these persons. Understanding this group's experiences with acute care is thus an important endeavour. The purpose of this review was to critically and systematically identify and assess previous research on experiences of acute care by perso

Unga forskare som vill göra akademisk karriär står inför många utmaningar. Deras tillvaro präglas av osäkra anställningar, motstridiga krav och begränsade erfarenheter av att stå på egna ben. Många befinner sig dessutom i familjebildande ålder. Kunskap om hur man kan göra för att må bra och nå framgång på sina egna villkor är sällsynt – få forskare låter andra få en inblick i deras forskartillvaro