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For well over a century, migration researchers have recognized the lack of adequate distance measures to be a key obstacle for advancing understanding of internal migration. The problem arises from the convention of spatially defining migration as the crossing of administrative borders. Because administrative regions vary in size, shape, and settlement patterns, it is difficult to tell how far mov
Tundra soils account for 50% of global stocks of soil organic carbon (SOC), and it is expected that the amplified climate warming in high latitude could cause loss of this SOC through decomposition. Decomposed SOC could become hydrologically accessible, which increase downstream dissolved organic carbon (DOC) export and subsequent carbon release to the atmosphere, constituting a positive feedback
Catalysis is one of the few scientific concepts that has entered common parlance. To laymen catalysts simply speed up processes, but to a chemist they are much more interesting and complex. Catalysis offers the possibility to accomplish chemical reactions in a targeted manner with the least expenditure of energy and material. Given the increasing scarcity of resources, catalysts have become relevaThis thesis deals with the design and synthesis of rhodium and iridium bis-η2 diolefin catalysts and their applications in C–C bond formation and asymmetric catalysis.More specifically, the second chapter describes the development of inter- and intramolecular (5+2) cycloadditions catalyzed by cationic iridium(I) complexes that lead to the formation of seven-membered rings in a single step. DFT was
Based on the experience of the author and analyses of citation frequences of papers published in various biological journals, the use of citation counts and journal Impact Factors as a measure of scientific quality is discussed. It is concluded that citation frequency differ not only among biological sub-disciplines such as ecology and taxonomy, but also among taxonomic papers on highly similar toBased on my experience and analyses of citation frequencies of papers published in various biological journals, I discuss the use of citation counts and journal Impact Factors as measures of scientific quality. I conclude that citation frequency differs not only among biological sub-disciplines such as ecology and taxonomy, but also among taxonomic papers on highly similar topics, and that these l
AbstractObjectives It is unclear how home environmental factors influence relocation decisions. We examined whether indoor accessibility, entrance accessibility, bathroom safety features, housing type, and housing condition were associated with relocations either within the community or to residential care facilities.MethodsWe used prospective data over 4 years from the nationally representative NObjectivesIt is unclear how home environmental factors influence relocation decisions. We examined whether indoor accessibility, entrance accessibility, bathroom safety features, housing type, and housing condition were associated with relocations either within the community or to residential care facilities.MethodsWe used prospective data over 4 years from the nationally representative National H
Inconel 718 is a Ni-based superalloy that can perform excellently at elevated temperatures. However, surface and subsurface damages in the form of microstructural and property changes and tensile residual stresses are common in a machined Inconel 718 component because of its poor machinability. Such damages have a significant influence on performance and the life time of the part. To characterise Inconel 718 is a Ni-based superalloy that can perform excellently at elevated temperatures. However, surface and subsurface damages in the form of microstructural and property changes and tensile residual stresses are common in a machined Inconel 718 component because of its poor machinability. Such damages have a significant influence on performance and the life time of the part. To characterise
The Transfermium Working Group (TWG) was set up in 1986 under the joint auspices of the International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics (IUPAP). Its conclusions, duly endorsed by IUPAC and IUPAP, were published in the following three reports:1. Criteria that must be satisfied for the discovery of a new chemical element to be recogni
The aim of the current work was at development and validation of modeling tools for simulation of pulverised wood flames in furnaces and study how different factors influence on such flames. The numerical model involves different sub-models for the physo-chemical processes, such as, two-phase flow motion, drying, devolatilization and shrinkage of particles, the formation and oxidation of volatile,
This paper compares two flow routing algorithms' influences on ecohydrological estimations in a northern peatland catchment, within the framework of an arctic-enabled version of the dynamic ecosystem model LPJ-GUESS. Accurate hydrological estimations are needed to fully capture vegetation dynamics and carbon fluxes in the subarctic peatland enviroment. A previously proposed distributed hydrologica
There is a lack of objective evaluative standards for academic work. While this has been recognized in studies of how gatekeepers pass judgment on the works of others, little is known about how scholars deal with the uncertainty about how their work will be evaluated by gatekeepers. Building upon 35 interviews with early career academics in political science and history, this paper explores how ju
PurposeThe paper aims to clarify how an incumbent retail organisation explores digitalisation for its existing business.Design/methodology/approachThe paper draws from an in-depth case study of home-furnishing retail giant, IKEA conducted with semi-structured interviews, participant observations and document analyses.FindingsIn the exploration phase of digitalisation, three major activities – inte
Background: In 2007, the World Cancer Research Fund (WCRF) and the American Institute for Cancer Research (AICR) issued recommendations on diet, physical activity, and weight management for cancer prevention on the basis of the most comprehensive collection of available evidence. Objective: We investigated whether concordance with WCRF/AICR recommendations is related to risk of death. Design: The
This essay examines the implicit relationship between political science and rare events, or so called Black Swans. The purpose is to analyze Black Swan weakness by evaluating the nature of political analysis and political theories. The key to this assessment is the analysis of the predictive powers of political analysis and theories. This essay claims, on the basis of Karl Poppers historicism crit
This paper examines if competition between internet service providers using city networks leads to lower prices. The research tests the theory of the circular city that in which the price depends on the marginal cost as well as the number of competitors in the market. Based on this theory the cost of a 100 Mbits connection should move towards marginal cost if there are more internet service provid
The purpose of this thesis is to model and forecast Swedish government yields by using three classes of the Nelson Siegel Model Family. The three models considered are the Dynamic Nelson Siegel Model, Arbitrage-Free Nelson Siegel Model and Dynamic Nelson Siegel Svensson Model. A brief introduction to interest rate theory is given with emphasis on coupon bonds and yield curves. To introduce the con
