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We present the development of a specialized concrete for neutron shielding at neutron research facilities, based on the addition of hydrogen atoms in the form of polyethylene and also B4C for enhancing the neutron capture properties of the concrete. We show information on the mechanical properties of the concrete and the neutronics, in particular its relevance to modern spallation neutron sources,
Economic growth is an aspect of social change which cannot be explained by economic theory alone. McCloskey invokes ‘ideas’ but ideas only matter as embodied in institutions. Weingast makes this points but his institutions are too economistic. Only institutionalised self-emergence can explain massive, relentless and automatic change.
PURPOSE OF REVIEW: Delayed awakening after targeted temperature management (TTM) and sedation is frequent among cardiac arrest patients. Differentiating between prolonged coma and irreversible cerebral damage can be challenging, therefore the utilization of a multimodal approach is recommended by international guidelines. Here, we discuss indications and advantages/disadvantages of available modal
Introduction: Lobectomy is the standard curative treatment for non-small cell carcinoma (NSCLC) of the lung. Most studies on lobectomy have focused on short-term outcome and 30-day mortality. The aim of this study was to determine both short-term and long-term surgical outcome in all patients who underwent lobectomy for NSCLC in Iceland over a 24-year period. Material and methods: The study involv
Background: Practice guidelines for childhood posttraumatic stress disorder (PTSD) recommend trauma-focused psychotherapies, mainly cognitive behavioral therapy (CBT). Eye movement desensitization and reprocessing (EMDR) therapy is a brief trauma-focused, evidence-based treatment for PTSD in adults, but with few well-designed trials involving children and adolescents. Methods: Weconducted a single
Strongly interacting one-dimensional (1D) Bose-Fermi mixtures form a tunable XXZ spin chain. Within the spin-chain model developed here, all properties of these systems can be calculated from states representing the ordering of the bosons and fermions within the atom chain and from the ground-state wave function of spinless noninteracting fermions. We validate the model by means of an exact diagon
Logistik är ett ämnesområde som får allt större betydelse i allt fler branscher. Logistik sägs ha initierats av Napoleon då han utförde militära insatser på 1800-talet. För att klara matförsörjningen för sina militärer och för att underhålla den utrustning som fördes med trupperna så var han tvungen att ta med smeder, kockar och andra hantverkare som kunde försörja trupperna med mat och återställa
Diffractive excitation is a large fraction of the pp cross section, also at high energies. Diffraction has been described by multi-Regge diagrams, or in the Good-Walker formalism as a result of fluctuations. The two formalisms are, however, just different sides of the same phenomenon. The dipole cascade formalism in impact parameter space is well suited to describe diffractive excitation including
The tumor microenvironment can act so as to stimulate or reject tumor cells. Among the determining factors are cytokines produced, for example, by infiltrating immune cells, tumor cells, and fibroblasts. External radiotherapy has been shown to be able to activate an immune response against tumor cells with cytokine signaling as an important part of the activation. The aim of this study was to eval
This paper presents four different tangible interactive prototypes designed to support the continuation of balance rehabilitation at home. The interactive prototypes are designed to provide a more enjoyable and experience when performing balance rehabilitation exercises. Early results from preliminary tests with stroke survivors and rehabilitation professionals are promising. The aim of the design
In this paper we outline the initial stages of a human centered design process aimed at the design of novel technology (tangible interactive objects) for stroke survivors. We found it useful to support standard methods, such as interviews and focus groups, with a video prototype in order to make the concept of tangible interaction, which was novel to our users, more clear. In addition we carried o
In contrast to the efficient market hypothesis (EMH), the noisy market hypothesis (NMH) asserts that prices are but noisy indications of fundamental values. The authors study losses in certainty equivalents of investing according to one hypothesis (NMH or EMH) when the other is true. Their findings suggest that, for reasonable parameter values, investing according to the EMH when the NMH is true y
