Range corrections in Proton Halo Nuclei

We analyze the effects of finite-range corrections in halo effective field theory for S-wave proton halo nuclei. We calculate the charge radius to next-to-leading order and the astrophysical S-factor for low-energy proton capture to fifth order in the low-energy expansion. As an application, we confront our results with experimental data for the S-factor for proton capture on Oxygen-16 into the excited $1/2^+$ state of Fluorine-17. Our low-energy theory is characterized by a systematic low-energy expansion, which can be used to quantify an energy-dependent model error to be utilized in data fitting. Finally, we show that the existence of proton halos is suppressed by the need for two fine tunings in the underlying theory.Comment: 30pages, 12 figure

Constraining Low-Energy Proton Capture on Beryllium-7 through Charge Radius Measurements

In this paper, we point out that a measurement of the charge radius of Boron-8 provides indirect access to the S-factor for radiative proton capture on Beryllium-7 at low energies. We use leading-order halo effective field theory to explore this correlation and we give a relation between the charge radius and the S-factor. Furthermore, we present important technical aspects relevant to the renormalization of pointlike P-wave interactions in the presence of a repulsive Coulomb interaction.Comment: Accepted for publication in European Physical Journal A. 29 pages, 9 figure

Illuminating perceptions about communication in environmental consultancy organizations

Environmental consultant organizations deal with solving environmental problems. In this process of solving environmental problems communication is an important and integral part. How consultant organizations perceive communication has an effect on how they develop strategies for communication. By conducting seven semi-structured interviews, this study investigates how consultants working for environmental consultancy organizations perceive communication in their work with clients and what meta-theories about communication that informs the development of communication strategies. The study aims at highlighting aspects of communication that are of importance for the work the environmental consultants engage in, aspects of their work which might not be of focus in a day to day setting. By using the data from the interviews, themes that represent how the consultants talk about communication are identified. These themes are then analysed and discussed from the perspective of two metatheories about communication, transmission of messages and symbolic interactionism. The study shows that depending on the objective with the communication, the consultants perceive communication differently. It is common for the consultants to perceive communication as corresponding to the transmission model of communication. But approaching communication with the perspective of symbolic interactionism highlights important aspects of communication that otherwise might not be revealed. Analysing different ways of approaching communication allows for a discussion about how to approach communication in environmental consultant organizations

Mobile Technology Update to Delone and Mclean Model of Information Success

Senior managers are challenged to measure the success of their IT systems when justifying technology investments needed to meet the organization â„¢s mission. Due to increasing implementation of mobile technology, enterprise adoption of smartphones is no exception. Traditionally, the DeLone and McLean Information Systems (IS) Success Model has been proven as a valid framework for measuring IS success. However, it has not been updated to address the success variables related to mobile technology. Many studies on mobile technology have reviewed mobile success, but none have attempted theoretical assimilation. This thesis attempts to correct this situation by examining the DeLone and McLean IS Success Model in measuring the efficacy of mobile technology integration within information systems. The result of the literature review is a list of variables related to mobile success in information systems. The findings hope to show that the new variables discovered to be related to mobile technology success are applicable as an update to the DeLone and McLean IS Success Model