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We suggest a physical picture of the catalytic act combining together the energy transfer and the synchronisation of the best electron density in the reactant and active site as a consecutive sequence of events. Activity and selectivity at molecular level are defined. Geometry requirements seem to be linked to energy and time requirements. Our proposal for developing new catalysts at the molecular
In this article, some of the possibilities and obstacles involved in attaining stable peace in the Baltic Sea region are analysed. By stable peace is understood a relationship in which military conflict resolution has become unthinkable regardless of how serious a prospective conflict may become. It is argued that stable peace does not presently exist in the region as a whole, but that instead the
This thesis is about the social services’ investigations into childrens need of protection and support. The principal purpose is, from a critical perspective, to analyse and discuss how the legally-accorded procedural directives for the execution of an investigation, and therein the integrated support and counselling work, are adapted in the social services’ actual investigation work in relation t
A classical solution for matching two image patches is to use the cross-correlation coefficient. This works well if there is a lot of structure within the patches, but not so well if the patches are close to uniform. This means that some patches are matched with more confidence than others. By estimating this uncertainty, more weight can be put on the confident matches than those that are more unc
Nature has been recognized as a rich source of potentially useful chemicals. Throughout the years, phytochemical studies have led to the discovery of an enormous number of natural products, their chemical diversity is unique and many of them possess various biological activities. As a contribution, this thesis presents the results obtained from the phytochemical study of four Bolivian plants. Sene
The purpose of this paper is to present some reflections on the relationship between the production of contemporary art and the function of national identities in our Scandinavian and Baltic countries. The main assumption of the paper is a non-essentialist one: the author assumes that national identity, like art and the context(s) of the art-world(s), is something which is produced and socially co
The article treats the experience of Swedish designers, architects and sculptors, who travelled to Pompeii over some 200 years, from the 1760s to the 1920s, and their subsequent appropriation of the Pompeian idiom for creations in Stockholm and surroundings. It puts forth that the kind of premises found appropriate for decorations in Pompeian derivation varied over time, from Royal pleasure houses
Background: Comprehensive geriatric assessment (CGA) represent an important component of geriatric acute hospital care for frail older people, secured by a multidisciplinary team who addresses the multiple needs of physical health, functional ability, psychological state, cognition and social status. The primary objective of the pilot study was to determine feasibility for recruitment and retentio
This paper considers the potential inflation effects of a global carbon price on consumer prices, investment prices, export prices, and import prices. We estimate the effects under three different scenarios. The results clearly indicate that the inflation effects in developed countries of a 100 USD/ton carbon price are small. For developing countries, the inflation effect is larger and potentially
Qualitative methods are well established in music education research. This has led to an interesting body of research, each project investigating in depth a specific situation or phenomenon. One way of combining the advantages of qualitative studies with the aim of acquiring general theories Of music education might be to develop methods of re-analyzing primary studies on a secondary, meta level.
In this paper, the effect of polarization on the downlink achievable sum-rate of multi-user Cooperative Multi-Point (CoMP) systems is studied using synchronous multi-link channel measurements with two different antenna arrangements. In the first setup, four dual-polarized antenna patches with inter-patch distance varied from half wavelength to 8 m are considered at the base station (BS). In the se
Ionization-induced electron injection was investigated experimentally by focusing a driving laser pulse with a maximum normalized potential of 1.2 at different positions along the plasma density profile inside a gas cell, filled with a gas mixture composed of 99%H2+1%N2. Changing the laser focus position relative to the gas cell entrance controls the accelerated electron bunch properties, such as
