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The determination of the phospholipid fatty acid (PLFA) pattern of soil organisms has become one of the most commonly used methods to study microbial community structure. Here we recapitulate the background of our work applying the PLFA method to soil in the early 1990s. We also stress that although the PLFA method was, and still is, a rapid and sensitive method to detect changes in the microbial
Virtual communities and social networks assume and consume more aspects of people's lives. In these evolving social spaces, the boundaries between actual and virtual reality, between living individuals and their virtual bodies, and between private and public domains are becoming ever more blurred. As a result, users and their presentations of self, as expressed through virtual bodies, are increasi
Background: Moths rely heavily on pheromone communication for mate finding. The pheromone components of most moths are modified from the products of normal fatty acid metabolism by a set of tissue-specific enzymes. The turnip moth, Agrotis segetum uses a series of homologous fatty-alcohol acetate esters ((Z)-5-decenyl, (Z)-7-dodecenyl, and (Z)-9 tetradecenyl acetate) as its sex pheromone component
In high-energy collisions, the spatio-temporal size of the particle production region can be measured using the Bose-Einstein correlations of identical bosons at low relative momentum. The source radii are typically extracted using two-pion correlations, and characterize the system at the last stage of interaction, called kinetic freeze-out. In low-multiplicity collisions, unlike in high-multiplic
Several notions of a R&D paradox can be found in the literature. In the Swedish Paradox version, the emphasis is normally on high and growing levels of business R&D connected to comparatively low GDP growth rates. This paper examines whether this pattern is consistent over time and, more importantly, which sectors drive the aggregate patterns. Based on an investigation of the entire Swedis
To estimate the effects of smoking, gender and occupational exposure on the risk of developing severe pulmonary fibrosis (PF), including dose-response and interaction effects.
This paper presents a pilot study in which specific activities of (14)C in hair and urine from 11 radiation workers handling (14)C-containing substances have been measured using accelerator mass spectrometry. Varying degrees of contamination were revealed: up to 63% excess in hair and 400% excess in urine. Although the (14)C excess reported in this study would result in low effective doses, it wou
Popular Abstract in Icelandic SUMMARY IN ICELANDIC Samantekt á íslensku Hlutfall eldra fólks í Evrópu sem og annars staðar í heiminum hefur aukist og þá sérstaklega þeirra sem eru 80 ára og eldri. Vegna hrumleika og langvinnra sjúkdóma er líklegt að þessi aldurshópur þarfnist aðstoðar frá hinu opinbera, m. a. vistunar á hjúkrunarheimilum. Því má ætla að á komandi árum muni hjúkrunarheimilin standThe overall aim of this thesis was to investigate trends over time in residents’ health status, functional profile and predictors of mortality at admission to Icelandic nursing homes and in addition to determine upper and lower thresholds for Minimum Data Set (MDS) Quality Indicators, to investigate the prevalence of quality indicators over time and their association with the health status and fun
The aim of this dissertation is to examine how differences in socioeconomic status, race and place of residence interact with infant and child mortality in Colombia over the period 1967-2010. One of the reasons why the study focuses on infant and child mortality is that the living conditions of children are outside their control, and therefore a good measure of inequality of opportunity. This stud
Capsule Resident Blackcaps in eastern Spain differ in morphology and isotope profile from central European conspecifics wintering in the area, but not from locally breeding migrants. Aims Natural selection shapes flight morphology in relation to migratory habits. Thus, intraspecific variation in migratory behaviour is often paralleled by morphological differentiation. We test whether differences i
Reaction of [Ru-3(CO)(12)] with tri(2-furyl)phosphine, P(C4H3O)(3), at 40 degrees C in the presence of a catalytic amount of Na[Ph2CO] furnishes two triruthenium complexes [Ru-3(CO)(10){P(C4H3O)(3)}(2)] (1) and [Ru-3(CO)(9){P(C4H3O)(3)}(3)] (2) with the ligand coordinated through the phosphorus atom. Treatment of 1 and 2 with Me3NO at 40 degrees C affords the dinuclear phosphido-bridged complexes
Background: Risk gene variants for celiac disease, identified in genome-wide linkage and association studies, might influence molecular pathways important for disease development. The aim was to examine expression levels of potential risk genes close to these variants in the small intestine and peripheral blood and also to test if the non-coding variants affect nearby gene expression levels in chi
This article discuss the consequences of the ambiguous view of children in the ethical guidelines – the ambitions to “give voice” while also “protect” – with a point of departure taken in the Swedish context, and in an actual research process of a project on children and care. It shows how the regulation of informed consent through the parent compromises the ideals of child-centred research; first
Single complex fluorescence polarization spectroscopy is applied to study the peripheral light harvesting antenna (LH2) from photosynthetic purple bacterium Rhodopseudomonas (Rps.) acidophila. The measured two-dimensional excitation-emission polarization plots are used to construct geometric representation for the absorbing B800 and emitting B850 as ellipses. The shape and orientation of the ellip
Background: Rehabilitation is effective and beneficial for patients with arthritis. The lack of a common structure for describing the content of rehabilitation makes it difficult to compare, transfer and implement research evidence into clinical practice. Objective: To develop a framework comprising domains and elements of importance when describing arthritis rehabilitation. Methods: On the basis
Book review
An improved, chemoselective hydrogenolysis method has been developed. By employing a solvent-acid combination (i.e., DMF-aq HCl) we were able to favor debenzylation rather than aromatic hydrogenation and acid-mediated bond cleavage which are the two main drawbacks of these reactions. The generality of the method, which was primarily developed as a solution to a carbohydrate problem, is shown by th
Hemoglobin (Hb) plays a critical role in human physiological function by transporting O-2. Hb is safe and inert within the confinement of the red blood cell but becomes reactive and toxic upon hemolysis. Haptoglobin (Hp) is an acute-phase serum protein that scavenges Hb and the resulting Hb-Hp complex is subjected to CD163-mediated endocytosis by macrophages. The interaction between Hb and Hp is e
