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In this Letter we analyze the relation between the triple-pomeron and Good-Walker formalism's for diffractive excitation in DIS and hadronic collisions. In both approaches gap events are interpreted as the shadow of absorption into inelastic channels. We here argue that the two formalisms are just different views of the same phenomenon. We first demonstrate how this relation works in a simple toy
Kärn- och elektrondynamik i atomer och molekyler är grunden för många fysiska processer och kemiska reaktioner. Ofta händer denna dynamik på tidsskalor som är så korta att de kallas ultrasnabba.För att studera ultrasnabba fenomen behövs tekniker som pump-prob-experiment med ultrasnabba ljuspulser. För att dessa experiment ska lyckas måste ljuspulsernas egenskaper noga studeras och styras för att dNuclear and electronic dynamics in atoms and molecules are the foundation of many physical processes and chemical reactions. Often, these dynamics take place on timescales so much shorter than those commonly encountered that they are called ultrafast. In order to study ultrafast phenomena, time-resolved techniques such as pump-probe experiments, involving ultrafast light pulses, are necessa
Throughout time, communities have adapted to changes in their environment and, in doing so, have addressed risksthat threaten the things they value. The need to adapt is considered more urgent now than ever, notably given thecurrent focus on climate risk. Typically, adaptation is presented as a solution to reduce such risks. This is particularlythe case for Landlocked Developing Countries and Smal
Massive multiple-input multiple-output (MIMO) promises significantly higher performance relative to conventional multiuser systems. However, the promised gains of massive MIMO systems rely heavily on the accuracy of the absolute front-end calibration, as well as quality of channel estimates at the base station (BS). In this paper, we analyze user equipment-aided calibration mechanism to estimate t
The quantum mechanical motion of electrons and nuclei in systems spatially confined to the molecular dimensions occurs on the sub-femtosecond to the femtosecond timescales respectively. Consequently, the study of ultrafast electronic and, in specific cases, nuclear dynamics requires the availability of light pulses with attosecond (asec) duration and of sufficient intensity to induce two-photon pr
Our society is moving towards renewable resources, where biomass, rich incarbohydrates, is producing chemicals and fuel. However, there are severallimitations when it comes to valorisation of the carbohydrates from renewablebiomass. One major hurdle is the over-functional nature of carbohydrates, making them difficult to process by conventional chemistry. Carbohydrate activeenzymes can help overco
Antibody microarrays have emerged as an important tool within proteomics, enabling multiplexed protein expression profiling in both health and disease. The design and performance of antibody microarrays and how they are processed are dependent on several factors, of which the interplay between the antibodies and the solid surfaces plays a central role. In this study, we have taken on the first com
Placebo comparisons are increasingly being considered for randomised trials assessing the efficacy of surgical interventions. The aim of this Review is to provide a summary of knowledge on placebo controls in surgical trials. A placebo control is a complex type of comparison group in the surgical setting and, although powerful, presents many challenges. This Review outlines what a placebo control
The flat periwinkles, Littorina fabalis and L. obtusata, comprise two sister gastropod species that have an enormous potential to elucidate the mechanisms involved in ecological speciation in the marine realm. However, the molecular resources currently available for these species are still scarce. In order to circumvent this limitation, we used RNA-seq data to characterize the transcriptome of fou
High-order harmonic generation (HHG) supplies extreme ultraviolet (XUV) radiation with attosecond pulse duration for a wide variety of applications from fundamental research to industry. As HHG is a very inefficient process, enhancing the XUV flux is of great interest. Hereby, either the HHG process itself or the laser which is the primary driver of HHG can be optimized.Currently, the technology i
A methodology is produced for environmental and health risk assessment for road transports of hazardous material. The general risk management process with focus on health and environment is described briefly. Management systems, risk communication and uncertainty in the risk management process are also discussed in this context. The produced methodology is implemented in a case study in Iceland. T
The purpose of this research was to examine how non-mandatory municipal environmental work is carried out. What drives certain municipalities to be more active than others, and what works as barriers? It was also of interest to understand if the mandatory work could influence, trigger or hinder other environmental goals and ideas. Further, the research looked to identify some characteristics that
Energy security is revealed to be one of the most urgent issues for the Ukraine and the key driver for the diversification of its energy sources. The country is shown to have significant potentials for renewable energy sources, and specifically for biomass. The development of bioenergy options is believed to help the Ukraine combat its energy security problem and bring a number of economic, social
As a complex hydrological problem, rainfall-runoff (RR) modeling is of importance in runoff studies, water supply, irrigation issues, and environmental management. Among the variety of approaches for RR modeling, conceptual approaches use physical concepts and are appropriate methods for representation of the physics of the problem while may fail in competition with their advanced alternatives. Co
To promote human flourishing throughout society, opportunities for arts participation must encompass all citizens. A primary means to promote this is arts education and activities for schoolchildren. Equal opportunities for participation are currently not enjoyed by students with disabilities. In a population-based and cross-sectional study carried out on a 2016 public-health survey including 27,3
Freight transport in urban areas needs to become more sustainable. There is much potential to reduce emissions by transitioning to electric freight vehicles (EFVs). The context of this study is Sweden, a country with ambitious goals for transitioning to fossil-free road transport that incentivizes the adoption of EFVs through regulations, subsidies and environmental zones. However, it seems that f
This paper introduces the first minimal solvers that jointly estimate lens distortion and affine rectification from the image of rigidly-transformed coplanar features. The solvers work on scenes without straight lines and, in general, relax strong assumptions about scene content made by the state of the art. The proposed solvers use the affine invariant that coplanar repeats have the same scale in
In contrast to artificial systems, animals must forage for food. In biology, the availability of energy is typically both precarious and highly variable. Most importantly, the very structure of organisms is dependent on the continuous metabolism of nutrients into ATP, and its use in maintaining homeostasis. This means that energy is at the centre of all biological processes, including cognition. S
