Sökresultat

For the class of Hardy spaces and standard weighted Bergman spaces of the unit disk, we prove that the spectrum of a generalized Cesàro operator Tg is unchanged if the symbol g is perturbed to g+h by an analytic function h inducing a quasi-nilpotent operator Th⁠, that is, spectrum of Th equals {0}⁠. We also show that any Tg operator that can be approximated in the operator norm by an operator Th w

This thesis presents the study of a position-sensitive scintillation-based detector called the Solid-State Neutron Detector (SoNDe). SoNDe is being developed for cold- and thermal-neutron detection at the small-angle neutron scattering (SANS) instrument SKADI at the European Spallation Source (ESS), currently under construction in Lund, Sweden. The response of the detector scintillator, multi-anod

As an introduction to the rigorous treatment of diffusion encoding in the rest of the book, this chapter gives simple non-mathematical explanations of the relations between the properties of biological tissues and the translational motion of the tissue water with the aim of conveying an intuitive feel of the relevant time and length scales and the level of detail of the information that can be obt

Adiabatic laminar burning velocities and post-flame NO mole fractions for neat and blended ethanol and n-heptane premixed flames were experimentally determined using a heat flux burner and laser-induced fluorescence. The flames were stabilized at atmospheric pressure and at an initial temperature of 338 K, over equivalence ratios ranging from 0.6 to 1.5. These experiments are essential for the dev

Let S(Λ) denote the classical Littlewood–Paley operator formed with respect to a lacunary sequence Λ of positive integers. Motivated by a remark of Pichorides, we obtain sharp asymptotic estimates of the behaviour of the operator norm of S(Λ) from the analytic Hardy space HAp(T) to Lp(T) and of the behaviour of the Lp(T) → Lp(T) operator norm of S(Λ) (1 < p< 2) in terms of the ratio of the lacunar

It is known that for Kn,n equipped with i.i.d. exp (1) edge costs, the minimum total cost of a perfect matching converges to in probability. Similar convergence has been established for all edge cost distributions of pseudo-dimension . In this paper we extend those results to all real positive q, confirming the Mézard-Parisi conjecture in th

Study design: Cross-sectional and longitudinal. Objectives: To (i) describe health-related quality of life (HRQoL) and changes over 6 years in older adults aging with long-term spinal cord injury (SCI) and (ii) investigate how changes in HRQoL are associated with age, gender, and injury characteristics. Setting: Community in southern Sweden. Methods: From the initial 123 participants (years 2011–2

We document that a high level of natural productivity of the ocean - a rich bounty of the sea - has had a positive and persistent impact on economic development since pre-industrial times until today. In addition, we document that it is the bounty of the sea of the ancestors of current populations which drives the persistent effect, not geography per se. We argue that an explanation is that a rich

This paper studies the cultural causes and consequences of mass emigration from Scandinavia in the 19th century. I test the hypothesis that people with individualistic traits were more likely to emigrate, because they faced lower costs of leaving established social networks behind. Data from population censuses and passenger lists confirm this hypothesis. Children who grew up in households with no

Background: There is still a lack of knowledge regarding the natural course of resolution of hydronephrosis after pyeloplasty, and no consensus exists on how resolution of hydronephrosis is defined or when resolution is expected to occur. Objective: To determine when resolution of hydronephrosis occurs following pyeloplasty, by type of obstruction and by surgical approach. Methods: This retrospect

Peptide receptor radionuclide therapy is a type of molecular radiotherapy that has been used in the treatment of patients with neuroendocrine tumours for over two decades. It is not until recently, however, that it has achieved regulatory approval. The currently approved treatment regimen is a one-size-fits-all scheme, i.e. all patients receive a fixed activity of the radiopharmaceutical (177Lu-DO

Recension av Peter Englund: Söndagsvägen. Berättelsen om ett mord

Recension av Anna Pavlenko & Per Enerud: Ett fruktansvärda skräckvälde råder i Ryssland. Ryska revolutionen i svensk diplomatisk rapportering 1917-1919

Recension av Ulrika Knutson: Den besvärliga Elin Wägner

Background: Qualitative research concerning body awareness has focused on how patients with different diagnosis experience body awareness. No earlier study has focused on healthy adults’ experiences of body awareness. Aim: The aim of this study was to explore and describe healthy adults’ experiences of body awareness. Methods: Fifteen healthy informants were interviewed individually, and the trans

The study of diffusion anisotropy via diffusion NMR was pioneered 40 years ago in systems pertaining to the field of porous media. Since then, its combination with MRI has attracted overwhelming interest within the neuroscience community as a way to perform non-invasive in vivo assessment of tissue microstructure. However, most conventional diffusion MRI techniques measured diffusion anisotropy me

Universal Design (UD) is a design approach that recognises and anticipates diversity as a fundamental human condition. UD is also frequently referred to in relation to the social dimension of sustainable development. Central to both UD and sustainability is the way “everyone,” as the target of UD and sustainability goals, is understood. The purpose of the study is to identify how UD’s “everyone” i

I argue that given a plausible reading of John Williams’s Stoner (2012 [1965]) the novel throws light on the demands and costs of pursuing a strategy for self-realisation along Platonic lines which seeks unification through the adoption of a single exclusive end in a manner that emulates the Socratic maieutic teacher. The novel does not explicitly argue either for or against such a strategy but ra