Sökresultat

This is the first of three chapters (this chapter and Chapters 7 and 8) on diffusion MRI acquisition for tractography. For tractography, the acquisition is optimized for the estimation of fiber orientation. This chapter covers the creation of diffusion contrast. This is largely independent of the image encoding part of the MRI sequence, which is covered in Chapter 7. Unless explicitly stated, this

This study presents a measurement campaign with an ultra-large-scale antenna array in both Line-of-Sight (LoS) and Non-Line-of-Sight (NLoS) outdoor scenarios. Measurements were conducted at a center frequency of 15 GHz with a bandwidth of 4 GHz. A virtual 40×40 planar antenna array, formed by moving a vertically-polarized bi-conical omni-directional antenna (ODA) along regularly spaced grids, was

The final chapter presents a summary of the key themes and insights from the Elgar Handbook as workshopped in Dublin in October 2023 and developed by the named authors. Health system resilience is a potent and useful concept which has shown a versatility and appeal across a range of health system crises. Nevertheless, it still needs to gain maturity with key challenges around understanding and mea

This is the second of three chapters on diffusion MRI acquisition for tractography. This chapter covers image formation, which is largely independent of the creation of diffusion contrast (Chapter 6). The Stejskal-Tanner diffusion experiments in the 1960s were bulk NMR measurements of diffusion; the addition of spatial localization, i.e., imaging, would follow decades later. The excitation and rea

Many problems in computer vision can be formulated as geometric estimation problems, i.e. given a collection of measurements (e.g. point correspondences) we wish to fit a model (e.g. an essential matrix) that agrees with our observations. This necessitates some measure of how much an observation 'agrees' with a given model. A natural choice is to consider the smallest perturbation that makes the o

Analyzing microstructural properties projected along white matter pathways derived from diffusion magnetic resonance imaging (MRI) has become increasingly popular in recent years. Along-streamline profiling based on diffusion MRI tractometry is a framework that maps summary measures of the diffusion data (e.g., fractional anisotropy) at multiple points along a given pathway, resulting in a so-call

This is the third of three chapters on diffusion MRI acquisition for tractography. Tractography is performed extensively in the in vivo adult brain, and sequences used for the in vivo adult brain have been covered in detail in Chapter 7. However, tractography is also performed in ex vivo human brain, in both the in vivo and ex vivo animal brain of various nonhuman species, in the human brain durin

Becoming couture is the first book to examine the history of the Italian fashion industry during the global transition brought about by the Second World War. It draws on a wide range of primary sources, some of them newly unearthed, to demonstrate that the Italian fashion industry in the Republican era continued to rely on business practices and professionals established during Fascism. Analysing

As gene therapy for haemophilia is now licensed in Europe, and the hub and spoke approach is widely promoted for its delivery and follow-up, it is essential that people with haemophilia (PwH) who are eligible and opt to have this treatment are enabled to obtain the maximum benefit. Ensuring the pathway that makes up the patient gene therapy journey is effective is key to achieving this. EAHAD and

This review deals with the production of oxygen by photo-oxidation of water, which is a topic fitting a journal devoted to oxygen. Most of the present biosphere, including mankind, depends on oxygen. Elucidating the mechanism is of importance for solving the present energy crisis. Photosynthesis evolved in bacteria, first in a form that did not produce oxygen. The oxygen-producing version arose wi

In this paper, we consider real-time modelling of an underwater acoustic channel impulse response (CIR), exploiting the inherent structure and sparsity of such channels. Building on the recent development to model acoustic channels using a Kronecker structure, we propose a sparse block updating conjugate gradient algorithm. The method initially compensate for the drift common in underwater measure

We study a class of Gaussian processes for which the posterior mean, for a particular choice of data, replicates a truncated Taylor expansion of any order. The data consist of derivative evaluations at the expansion point and the prior covariance kernel belongs to the class of Taylor kernels, which can be written in a certain power series form. We discuss and prove some results on maximum likeliho

The COVID-19 pandemic has affected the entire area of health care, including care provided to patients with mental health problems. Due to the stressful nature of the pandemic, the number of patients experiencing mental health problems, especially depression or anxiety, has increased. Even well-before the pandemic, Europe struggled with a lack of mental health care, which was especially caused by

The paper examines the limits of state interference in proscribing cultural norms by considering gender discrimination, right of people to leave their community free of penalties, denying women appropriate education, and forced or arranged marriages for girls and young women. The discussion opens by reflecting on the discriminatory practices of the Pueblo tribes against their women and analysing a

Background: Aortic valve calcification (AVC) is an underlying pathophysiological mechanism in aortic stenosis, which shares many risk factors with diabetes. However, the association between dysglycemia and early stages of AVC remains unclear. The aim was to examine the associations between stages of dysglycemia and signs of AVC among middle-aged individuals from the general population. Methods: Th

Short afterword to a collection with Swedish translations of poems by Colombian poet Ángela García