Sökresultat

We apply a novel analytical framework based on medium resolution satellite data for the period 2001 – 2012 to estimate the effects of gold mining on agricultural production in Ghana, Mali, Tanzania and Burkina Faso. Our analysis finds a strong correlation between official statistics of agricultural production and vegetation index from satellite data at district level in these countries. Agricultur

The increasing availability of X-ray free-electron lasers (XFELs) has catalyzed the development of single-object structural determination and of structural dynamics tracking in real-time. Disentangling the molecular-level reactions triggered by the interaction with an XFEL pulse is a fundamental step towards developing such applications. Here we report real-time observations of XFEL-induced electr

We study the phase behavior of charged particles in electrolyte solutions wherein non-adsorbing polymers are added to provide an attractive depletion interaction. The polymer has a radius of gyration similar to that of the particle radius, which causes significant many-body effects in the effective polymer mediated interaction between particles. We use a recently developed analytical theory, which

Physical, chemical and biological variables were quantified in 19 subantarctic lakes (South Georgia) as a prelude to comparing these pristine systems with temperate lakes and to improve the knowledge of spatial and temporal variation in water chemistry and abundances of organisms. Lakes close to the sea had higher phosphorus concentrations, contained higher abundances of most organisms, and had hi

Movement and migration are fundamental parts of the life cycle of most organisms on Earth and occur at an astonishing range of spatial and temporal scales, from iconic pole-to-pole migrations of some birds to diel migrations of enormous amounts of millimeter-sized crustaceans through the waters of oceans and lakes. To move or not to move in a certain situation is a decision that is often taken by

Ion association, leading to the formation of clusters in ionic liquids, is investigated within the framework of classical density functional theory. Clusters are incorporated into a generic coarse-grained model for imidazolium-based ionic liquids confined by planar charged surfaces. We find that the short-ranged structure adjacent to surfaces is remarkably unaffected by the degree of ion associati

We introduce a classical density functional (DFT) description of polymer solutions, initially focusing on systems containing flexible and monodisperse chains. The theory is used to describe excluded volume effects by utilizing the so-called “Generalized Flory-Dimer” (GFD) equation of state. We also describe efficient computational approaches to numerical solutions. We then extend our treatment to

An analog of Quantum Chromo Dynamics (QCD) sector known as mirror QCD (mQCD) can affect the cosmological evolution due to a non-trivial contribution to the Cosmological Constant analogous to that induced by the ground state in non-perturbative QCD. In this work, we explore a plausible hypothesis for trace anomalies cancellation between the usual QCD and mQCD. Such an anomaly cancellation between t

In this short review, I discuss basic qualitative characteristics of quantum non-Abelian gauge dynamics in the non-stationary background of the expanding Universe in the framework of the standard Einstein-Yang-Mills formulation. A brief outlook of existing studies of cosmological Yang-Mills fields and their properties will be given. Quantum effects have a profound impact on the gauge field-driven

Abstraktinlämning NutritionGastrodagarna-1027Fortsatta erfarenheter av teduglutidbehandling vid extrema kort tarm syndrom i skåne och blekinge.Å Nilsson* 1, G Hoffmann2, M Söderholm3, L Zhou11Gastroenterologisektionen, Skånes Universitetssjukhus, Lund, 2Medicin, Gastroenterologi, Centralsjukhuset, Kristianstad, 3Kirurgiska Kliniken, Blekingesjukhuset, Karlskrona, SverigeBakgrund: Teduglutid (Reves

We study the deeply virtual Compton scattering off a spin-one particle, which is exemplified by the case of coherent scattering on a deuteron target. We discuss the role of twist three contributions for restoring the QED gauge invariance of the amplitude corresponding to this process. We consider both kinematical and dynamical sources of twist three generalized parton distributions.

We construct a QCD-based model where soft gluon rescattering between final state partons in deep inelastic scattering leads to events with large rapidity gaps and a leading proton. The model successfully describes the precise HERA data on the diffractive deep inelastic structure function in the whole available kinematical range.

PURPOSE: We determined the prognostic factors and utility of allogeneic hematopoietic cell transplantation among children with newly diagnosed hypodiploid acute lymphoblastic leukemia (ALL) treated in contemporary clinical trials.PATIENTS AND METHODS: This retrospective study collected data on 306 patients with hypodiploid ALL who were enrolled in the protocols of 16 cooperative study groups or in

We detail here the convergence properties of a new model-independent imaging method, the Lévy expansion, that seems to play an important role in the analysis of the differential cross section of elastic hadron-hadron scattering.We demonstrate, how our earlier results concerning the Odderon effects in the differential cross-section of elastic proton-proton and proton-antiproton scattering as well as t

We propose a novel mechanism for the production of gravitational waves in the early Universe that originates from the relaxation processes induced by the QCD phase transition. While the energy density of the quark-gluon mean-field is monotonously decaying in real time, its pressure undergoes a series of violent oscillations at the characteristic QCD time scales that generate a primordial multi-pea