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Nowadays, soil diversity is accessed at molecular level by the total DNA extraction of a given habitat. However, high DNA yields and purity are difficult to achieve due to the co-extraction of enzyme-inhibitory substances that inhibit downstream applications, such as PCR, restriction enzyme digestion, and DNA ligation. Therefore, there is a need for further development of sample preparation method
Pulsed electric fields in combination with vacuum infusion have been utilized to impregnate cells with trehalose, aiming at substantially improving the freezing tolerance of spinach leaves. Spinach samples were first treated with ten trains of bi-polar, rectangular electric field pulses with a nominal electric field strength of 580 V/cm and immediately immersed in a 40% (w/w) solution of trehalose
Background: The relationship between Helicobacter pylori infection and pancreatic cancer has been investigated in three previous studies with contradictory results. The aim of the present study was to investigate the association between H. pylori seropositivity and the risk for pancreatic cancer in a nested case-control study within a population based cohort. Methods: Selected birth- year cohorts
The effects induced by the deposition of Li on 1 and 0 ML graphene grown on SiC(0001) and after subsequent heating were investigated using low-energy electron microscopy (LEEM) and x-ray photo-emission electron microscopy (XPEEM). For 1 ML samples, the collected photoelectron angular distribution patterns showed the presence of single pi-cones at the six equivalent K-points in the Brillouin zone b
Recent developments in the field of genetic divergence and speciation focus more on diversifying processes than on geographic mode of speciation (i.e. allopatric versus sympatric). Some of these new theories concern speciation driven by conflicts between the sexes. Even though it is well known that the two reproductive functions in plants can have different selective optima, sexual selection in pl
Background: Rheumatic diseases commonly affect joints and other structures in the hand. Surgery is a traditional way to treat hand problems in inflammatory rheumatic diseases with the purposes of pain relief, restore function and prevent progression. There are numerous measures to choose from, and a combination of outcome measures is recommended. This study evaluated if instruments commonly used i
This paper provides an ex-post assessment of the climate and energy policy developments in Chile emerging from a neoliberal economic model, during the period 1971-2007. First, correlation and regression analyses were performed to analyse historical CO2 emissions as a product of demographic, economic and energy-wide drivers. Then I estimate indicators related to CO2 emissions, energy use and econom
Analyses assessed the degrees to which personality accounts for associations between marital quality and parenting and mediates genetic contributions to these relationships. Participants included 318 male and 544 female same-sex twin pairs from the Twin and Offspring Study in Sweden. All twins completed self-report measures of marital quality and personality (anxiousness, aggression, sociability).
Gene expression profiling studies initially enabled diffuse large B-cell lymphoma to be divided into germinal center and activated B-cell-like subtypes, which define high-and low-risk patient groups when treated with chemotherapy. Attempts to reproduce the prognostic classification immunohistochemically have, however, provided inconsistent results. The aim of this study was to determine whether mo
Photoluminescence (PL) of organo-metal halide perovskite semiconductors can be enhanced by several orders of magnitude by exposure to visible light. We applied PL microscopy and super-resolution optical imaging to investigate this phenomenon with spatial resolution better than 10 nm using films of CH3NH3PbI3 prepared by the equimolar solution-deposition method, resulting in crystals of different s
Popular Abstract in Swedish Min avhandling har fokuserat på att öka förståelsen för den ovanliga, allvarliga genetiska sjukdomen infantil malign osteopetros (IMO), med målet att utveckla genterapi som en ny behandlingsform för sjukdomen. IMO finns redan vid födseln och orsakas av att osteoklasterna, cellerna ansvariga för nedbrytning av ben, inte fungerar. Sjukdomen kan orsakas av flera olika gendThis thesis focuses on developing stem cell targeted gene therapy for the severe hereditary disorder Infantile Malignant Osteopetrosis (IMO) as well as increasing the understanding of how the genetic defect present in IMO affects the hematopoietic stem cells and hematopoiesis in general. IMO is a rare congenital disorder associated with an increased number of non-functional osteoclasts and the a
The objective of this study has been to analyze the introduction and development of mineral wool building insulation in Germany, Sweden and the UK, and to examine the policy instruments that support these processes. The aim has been to improve our understanding of the role of the policy instruments. The analysis focuses on the development of the policy framework, the development of technology, the
The data taken by DELPHI at centre-of-mass energies between 189 and 209 GeV are used to place limits on the CP-conserving trilinear gauge boson couplings Delta g(1)(Z), lambda(gamma) and Delta k(gamma) associated to W+W- and single W production at LEP2. Using data from the jjl nu, jjjj, jjX and lX final states, where j,l and X represent a jet, a lepton and missing four-momentum, respectively, the
A new type of point interactions for the Laplacian in R-3 is constructed generalizing classical Fermi pseudopotential. This model leads to a new resolvent formula and a non-trivial scattering matrix in p-channel.
Objectives To investigate the possible impact of maternal obesity on ultrasonographic dating of pregnancy. Methods The Swedish Medical Birth Registry was used to identify 842 083 singleton pregnancies for which the estimated date of deliver), (EDD) according to last menstrual period (EDD-LMP) and according to ultrasound examination (EDD-US) and maternal body mass index (BMI) in early pregnancy wer
A review of a doctoral issertation on "The Visitation of the Sick in Swedish Medieval and Reformation Traditions".
The bio-kinetic and sedimentation processes of wastewater treatment plants can be modelled by a large system of coupled nonlinear ordinary and partial differential equations (ODEs and PDEs). The subprocess of continuous sedimentation, which contains concentration discontinuities, is modelled by a degenerate parabolic conservation PDE with spatially discontinuous coefficients. A spatial discretizat
Glioblastoma multiforme is the most common and aggressive malignant brain tumor in humans, and the prognosis is very poor despite conventional therapy. Immunotherapy represents a novel treatment approach, but the effect is often weakened by release of immune-suppressive molecules such as prostaglandins. In the current study, we investigated the effect of immunotherapy with irradiated interferon-γ
