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Determination of flow velocities from magnetic resonance multiple spin-echo images : A phantom study

The purpose of this study was to evaluate a method for the quantification of through-plane flow velocities by magnetic resonance imaging (MRI) from the flow characteristics of conventional multiple spin-echo (MSE) signals. Simulated inflow-outflow-dependent signals, as well as images of a flow phantom were generated and the logarithm of the flow-dependent signal value was plotted against echo time

Tumours of the central nervous system. Proton magnetic resonance relaxation times T1 and T2 and histopathologic correlates

Proton MR relaxation times T1 and T2 were determined in vitro in 136 small specimens of astrocytomas grades I-IV, of oligodendrogliomas, metastases of adenocarcinomas, meningiomas and acoustic neuromas. In addition, 7 samples of peritumoural white matter were analysed. The analysed specimens were studied microscopically in their entirety regarding tumour type and occurrence of necrosis and non-tum

97Ru-transferrin uptake in tumor and abscess

The uptake of97Ru-transferrin (Ru-TF) in tumor and abscess bearing animals was compared with67Ga-citrate (Ga),123I-transferrin (I-TF), and several other plasma proteins. Maximal concentration in tumor of Ru-TF in mice was three times higher than67Ga-citrate (16.80±4.20 vs 5.08±0.58% D/g) although it occurred later (24 h compared with67Ga which reached its maximum 2 h after injection). Whole body a

Systematic Data Analysis for Multinational Case Study Research

We describe the process behind a large international research project using a case study approach. We discuss how the basic idea behind the project was developed, as well as the planning and implementation of the field study, including a number of challenges that we faced during the data collection and data analysis phases. We discuss how using an initial conceptual model, the extensive qualitativ

Teaching Note: The Swedish Academy #MeToo Scandal and the Reputation of the Nobel Prize

A classroom guide to teaching the case, “The Swedish Academy #MeToo Scandal and the Reputation of the Nobel Prize” (HBS No. 5-919-410). A fictional case protagonist must present his evaluation to the Nobel Foundation of the scandal affecting one of the Nobel independent network members and its implications for the Foundation. Key issues include the reputational effects of the Swedish Academy scand

Teaching Note: The Reputation of the "World's Most Prestigious Award": The Nobel Prize

At its heart, this is a case about the reputation of an international symbol of achievement and about managing an iconic brand. The case provides insights into the nature of a prestigious “heritage brand” and its challenges and opportunities to remain relevant and differentiated in the 21st century. In “protecting and safeguarding the standing of the Nobel Prize” the executive board faced the para

Deconstructing the discourse of degradation

In research about degraded towns two cognitive currents can be observed: empirical (what? how? where? when?) and theoretical (why?). Contrarily, no study to date has dealt with the issue of discursivity of its central concept ‘degradation’, i.e. its a priori linguistic characterization determining ways in which research on the subject has been done. As geographers, we are fascinated by the ”real”

Degradation and restitution: Understanding the concept of urbanity through its oscillations within formal contexts

In this concluding chapter, our aim is to outline the state-of-the-art within the deliberated topic in order to identify challenges for future research. Firstly, reminiscent of George Orwell’s aphorism “who controls the past controls the future”, we stress the importance of research into the origins of degraded and restituted towns in order to understand the socio-economic context that has shaped

Degraded and restituted towns in Poland: Origins, development, problems

One of the less known problems in settlement geography is the issue of so-called degraded and restituted towns. This lack of reconnaissance, however, is perhaps less the result of the towns’ scarcity than their specificity of being ‘awarded’ or ‘deprived of’ an urban label by means of strictly socio-political actions. Degraded and restituted towns, hence, are spatial units made ‘urban’ or ‘rural’

Rural/urban redux: Conceptual problems and material effects

Concepts are the basic building blocks of all knowledge, while the strength of the theories that guide any societal project is dependent on the quality those concepts. Contrarily, the utilization of questionable concepts will result in questionable material effects. As two of the oldest geographical concepts still in widespread use, ‘rural’ and ‘urban’ stand in stark contrast to the immense change

Status of the soft X-ray laser (SXL) project at the Max IV laboratory

A Soft X-ray Laser project (the SXL) aiming to produce FEL radiation in the range of 1 to 5 nm is currently in a conceptual design phase and a report on the design is expected to be delivered by March 2021. The FEL will be driven by the existing 3 GeV linac at MAX IV laboratory, which also serves as injector for the two storage rings. The science case has been pushed by a large group of mainly Swe

Time-resolved grazing-incidence X-ray diffraction measurement to understand the effect of hydrogen on surface strain development in super duplex stainless steel

Grazing-incidence x-ray diffraction was employed to measure, operando, during electrochemical hydrogen charging, the lattice strain development of the near-surface in super duplex stainless steel under applied tensile load. Hydrogen absorption led to the formation of tensile strains in both the austenite (γ) and ferrite (δ) phases perpendicular to the loading axis, whereas compressive strains were

Tillit eller tvång? : Konsumenters förtroende för handelns datainsamling

I denna undersökning har vi i juni 2020 frågat ett representativt urval om strax över 2000 svenskar om hur de förhåller sig till handelns användning av deras personliga information. Urvalet har viktats och efterstratifierats så att det ska representera den svenska allmänheten 18-79 år. Syftet har varit att bättre förstå i vilken mån allmänheten tycker att utbytet mellan vad de får i termer av exem