Search results

Filter

Filetype

Your search for "*" yielded 528423 hits

LPM-Effect in Monte Carlo Models of Radiative Energy Loss

Extending the use of Monte Carlo (MC) event generators to jets in nuclear collisions requires a probabilistic implementation of the non-abelian LPM effect. We demonstrate that a local, probabilistic MC implementation based on the concept of formation times can account fully for the LPM-effect. The main features of the analytically known eikonal and collinear approximation can be reproduced, but we

JEWEL - a Monte Carlo Model for Jet Quenching

The Monte Carlo model JEWEL 1.0 (Jet Evolution With Energy Loss) simulates parton shower evolution in the presence of a dense QCD medium. In its current form medium interactions are modelled as elastic scattering based on perturbative matrix elements and a simple prescription for medium induced gluon radiation. The parton shower is interfaced with a hadronisation model. In the absence of medium ef

Fake meds and grey market: A Sociocultural study on medicine consumption practices among Swedish residents

Digitalization has been incorporated into nearly all levels of life in Sweden, including the provision of healthcare service. Accompanied by political strategies that incorporate liberal market logic into public sectors, medicines are made accessible through multiple purchasing channels, especially on the Internet. In this presentation, Rui Liu gives an account of the emergence of a grey health ma

Breaking out of the neoliberal market agenda? Developing expertise to support local coastal community-based fisheries in Sweden

Ida WingrenMilena Arias Schreiber Sebastian LinkeBreaking out of the neoliberal market agenda? Developing expertise to support local coastal community-based fisheries in SwedenFisheries management lays bare many of the tensions and contradictions between community wellbeing and livelihoods on one hand and impositions of neoliberal market approaches to sustainability on the other. This causes probl

Harmonization at the costs of context-orientation - framing and scaling the crisis in Swedish Baltic Sea fisheries

The crisis in fisheries, both in Sweden, Europe and globally, has for decades been a central topic for discussion among stakeholders with different perspectives. However, to regulate a problem and give the policy-making a proper target, there is a need for a common understanding of the problem. Inspired by Maarten Hajer, it is argued that discourses on environmental problems include story-lines an

Heavy quark energy loss through soft QCD scattering in the QGP

A strong suppression of non-photonic electrons in Au+Au collisions is observed at Rhic. This is in disagreement with the expected dominance of the energy loss via gluon radiation, which predicts a much weaker suppression of heavy flavours due to the dead cone effect. However, collisional energy loss is also important, as demonstrated recently by the Soft Colour Interaction Jet Quenching model. Bas

Monte Carlo generators and the CCFM equation

We discuss three implementations of the CCFM evolution equations in event generator programs. We find that some of them are able to describe observables such as forward jet rates in DIS at HERA, but only if the so-called consistency constraint is removed. We also find that these results are sensitive to the treatment of non-singular terms in the gluon splitting function.

Management strategies and treatment results of pediatric choledochal malformations in the Nordic countries

Background: Incidence and long-term outcomes of choledochal malformations (CMs) in children remain unclear. Methods: Clinical characteristics, operative details, complications, and follow-up data were collected from eight pediatric surgical centers in Sweden, Norway, Denmark, and Finland, which also answered a questionnaire addressing management practices. Results: During 2000–2017, 126 pediatric

Surgical treatment and major complications within the first year of life in newborns with long-gap esophageal atresia gross type A and B – a systematic review

Background: The surgical repair of long-gap esophageal atresia (LGEA) is still a challenge and there is no consensus on the preferred method of reconstruction. We performed a systematic review of the surgical treatment of LGEA Gross type A and B with the primary aim to compare the postoperative complications related to the different methods within the first postoperative year. Methods: Systematic

Synergies between mycorrhizal fungi and microbial communities increase plant nitrogen acquisition

Nitrogen availability often restricts primary productivity in terrestrial ecosystems. Arbuscular mycorrhizal fungi are ubiquitous symbionts of terrestrial plants and can improve plant nitrogen acquisition, but have a limited ability to access organic nitrogen. Although other soil biota mineralize organic nitrogen into bioavailable forms, they may simultaneously compete for nitrogen, with unknown c

Parton Energy Loss Without Transverse Momentum Broadening

The Jewel 1.0 Monte Carlo simulates jet evolution in a medium with a microscopic description of splitting and scattering processes. In the framework of this model we investigate the transverse momentum broadening due to medium effects in different scenarios. Depending on assumptions about hadronisation, we observe either a small increase or even a slight decrease of the mean transverse momentum, b

Membrane separation of the base-catalyzed depolymerization of black liquor retentate for low-molecular-mass compound production

One way of valorizing the lignin waste stream from the pulp and paper industries is depolymerizing it into low-molecular-mass compounds (LMMC). However, a common problem in the depolymerization of Kraft lignin is the low yields of small aromatic molecules obtained. In the present work, the combination of the repeated depolymerization of lignin and the separation of LMMC from depolymerized lignin t

Altered Cell-mediated Immunity and Increased Postoperative Infection Rate in Long-term Alcoholic Patients

Background: Preoperative alteration of T cell-mediated immunity as well as an altered immune response to surgical stress were found in long-term alcoholic patients. The aim of this study was to evaluate perioperative T cell-mediated immune parameters as well as cytokine release from whole blood cells after lipopolysaccharide stimulation and its association with postoperative infections. Methods: F