Filtyp
Iron (Fe) is a key element, strongly influencing the biogeochemistry of soils, sediments and waters, but the knowledge about the variety of Fe species present in these systems is still limited. In this work we have used X-ray absorption spectroscopy (XAS) to study the speciation of Fe in soils and waters from a boreal catchment in northern Sweden. The aim was to better understand the controls of F
This article presents the developments of an ongoing research aimed at modelling the influence of fissuring on the behaviour of clays. In particular, it recalls the main results of an extensive laboratory investigation on a fissured bentonite clay from the south of Italy and presents the data of a new investigation on the evolution with shearing of the strain fields developing within the clay, res
Emission trading schemes (ETS) have emerged as a popular climate policy measure and are increasingly advocated as policy instruments to support the transition to a green economy. Using complementary analytical methods, this research investigated the institutional developments and complexities of the New Zealand Emissions Trading Scheme (NZ ETS). It focuses on (1) institutional experience and admin
Exposure to arsenic (As), cadmium (Cd) and lead (Pb) may generate oxidative stress, which can be assessed by 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) in urine, a sensitive marker of oxidatively damaged DNA. We have evaluated oxidative stress induced by mixed chronic exposure to As, Cd, Pb, as well as the influence of As metabolism and nutritional status, i.e. ferritin (Ft), selenium (Se), zin
A series of spinel type Fe-V-O phases were prepared with V/Fe atomic ratios ranging from 0 to 1 and were used for methanol oxidation to formaldehyde. X-ray powder diffraction shows that the basic spinel-type structure is retained after use of the samples in methanol oxidation. Compared with the freshly prepared samples, in and ex situ analyses of the samples with XANES show that both V and Fe are
Quinones are essential components in most cell and organelle bioenergetic processes both for direct electron and/or proton transfer reactions but also as means to regulate various bioenergetic processes by sensing cell redox states. To understand how quinones interact with proteins, it is important to have tools for identifying and characterizing quinone binding sites. In this work three different
We investigated motor-equivalent stabilization of task-related variables (TRV) at times of heel strike in eight healthy young men (23-30 years) who walked on a motorized treadmill at self-selected and prescribed speeds within the normal walking speed range. The TRV consisted of step parameters (step length and width) and the center of mass (CoM) position relative to the support (back and front fee
In low-temperature combustion concepts such as partially premixed combustion, the ignition delay should be large enough in order to ensure sufficient fuel and air mixing before the start of combustion. It is also necessary that the combustion timing is sufficiently well phased for high thermal efficiency. Since the ignition delay and combustion timing are intimately coupled, the decoupling of the
Despite traditionally regarded as identical, cells in a microbial cultivation present a distribution of phenotypic traits, forming a heterogeneous cell population. Moreover, the degree of heterogeneity is notably enhanced by changes in micro-environmental conditions. A major development in experimental single-cell studies has taken place in the last decades. It has however not been fully accompani
Benthic foraminifera were cultured for five months at four temperatures (4, 7, 14 and 21 degrees C) to establish the temperature dependence of foraminiferal calcite delta O-18 and Mg/Ca. Two Bulimina species (B. aculeata and B. marginata) were most successful in terms of calcification, adding chambers at all four temperatures and reproducing at 7 and 14 degrees C. Foraminiferal delta O-18 values d
In two consecutive equilibria the compound (Cp*)(2)Zr(OMe)(2) undergoes insertion of CO2 to form the mono- and bis-hemicarbonates. Both equilibria are exothermic but entropically disfavoured. Magnetisation transfer experiments gave kinetic data for the first equilibrium showing that the rate of insertion is overall second order with a rate constant of 3.20 +/- 0.12 M-1 s(-1), which is substantiall
Denna uppsatsen presenterar en studie av Revinge-1 kärnan borrad i Vombtråget. Borrkärnan uppvisar en sedimentär berggrundssekvens från övre jura till övre krita inkluderande jura/krita-gränsen. Sedimentologiska, biostratigrafiska och litologiska studier (så som SEM-EDX) utfördes för att uppnå en multidisciplinär karaktärisering av sedimenten. Borrkärnan kunde delas upp i åtta olika enheter, A−H. This thesis presents a study of the core from the Revinge-1 borehole from the Vomb Trough. The core displays strata from the Upper Jurassic to the Upper Cretaceous including strata covering the the J/K−boundary . Sedimentological, biostratigraphical and lithological studies (such as SEM-EDX) were performed as to get a multi-disciplinary characterization of the strata. The core have been divided in
Allt sedan Internet introducerades på 1990-talet har mycket förändrats i världen och juridik är inget undantag. Genom internet skapades en ny koppling mellan copyright och Internationell Privaträtt, detta för att copyrightintrång blev transnationella till en högre utsträckning och började ske genom massmediala kanaler. Sedan denna förändring får nu Copyright och Internationell Privaträtt arbeta tiSince the emergence of the Internet in the early 1990’s a lot has changed in the world and the area of law is no exception. Important for this essay is that the internet created a strong connection between the areas of Private International Law and Copyright, mainly since copyright infringements became transnational to a higher extent and happened more through ubiquitous medias. These two legal fi
The purpose of this paper is to predict the cost-effectiveness of a preventive health care project based on physical exercise that will take place at Medicon Village, Lund, in the fall of 2016. Data from the Health Survey for England is used to develop an empirical model with individual fixed effects that estimates the relationship between physical exercise and psychological well-being. The freque
The international migration of both skilled and unskilled persons from the global South to the North has reached an alarming proportion.This study investigates the underlying factors that informed the decisions of some African students not to return to their countries of origin after graduation from the Swedish Universities. The participants are former and present students of two Swedish Universit
The paper looks at the ecological crisis as a human crisis of perceptions and values. Its origins can be found in the Western anthropocentric-individualistic worldview whose expansion through the processes of colonization and globalization has allowed the industrial culture to become a global culture. The manifest inability of industrial societies to respond to the seriousness and complexity of en
Thymidine kinase 1 from tomato (ToTK1) is a newly discovered deoxyribonucleoside kinase (dNK) that has been subject to study due to its in vitro and in vivo properties making it an interesting suicide gene candidate for the treatment of brain tumors. The ToTK1 phosphorylates the nucleoside analogue 3-azido-2,3-dideoxythymidine (azidothymidine, AZT) equally well as its natural substrate thymidine (
In the present study, the enzyme thymidine kinase 1 from tomato (ToTK1) was expressed in E.coli and purified to near homogeneity by means of affinity chromatography. However, purified ToTK1 of bacterial origin displayed no substantial catalytic activity. Expression was also attempted in insect cells using the baculovirus expression vector system (BEVS). Significant TK activities were detected in t
Corporate Social Responsibility (CSR) is a concept of high relevance for business in general, and within logistics in particular (Seuring et al., 2008), and represents a set of actions that extend beyond the legal obligations and the explicit monetary interests of the company, aiming to benefit the society (McWilliams and Siegel, 2001). An important dimension of CSR is Occupational Health and Safe
