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In this paper we build upon and generalize an earlier model of the interactions between a plant and its pollinator (Ingvarsson and Lundberg, 1995). In this model we assume that the performance of the pollinator population is directly linked to the size of the plant population. To avoid the problem of both populations growing exponentially we have, without loss of generality, assumed the plant popu
The B10.RIII mouse strain (H-2r) develops chronic experimental autoimmune encephalomyelitis (EAE) upon immunization with the myelin basic protein 89–101 peptide. EAE was induced and studied in a backcross between B10.RIII and the EAE-resistant RIIIS/J strain (H-2r), and a complete genome scan with microsatellite markers was performed. Five loci were significantly linked to different traits and cli
This book is about how concepts are structured and processed. It is based on the findings in cognitive linguistics over the last decade, where thorough studies have been made about how concepts function. Concepts appear as image schemata, a spatial form of representation with very powerful properties. It embodies prototypicality, boundedness, orientation, plexity, scale proportions, part-whole re
This special issue on Product-Service Systems: reviewing achievements and refining the research agenda shows the progress that has been made in the PSS field in the last decade, including various national and international research projects and companies' initiatives, important achievements and gaps at theoretical and practical levels. Most of the papers can be of interest to practitioners, compan
Popular Abstract in Swedish I de hänvisningar som används i ett stort antal sociala projekt för att målet skall uppnås hittas rättighet och rättvisa som centrala diskursiva enheter i en återkommande använd tankemodell. I flera av dessa projekt blir resultatet, gång efter annan, utebliven framgång. Men den samma rätta tankemodellen förblir en självklar utgångspunkt. De upprepade krigen mot fattigdoIn the references invoked by a large number of social projects to achieve their goals, one can find rights and justice as central discursive units in a frequently recurring thought model. In several of these projects the result, time after time, is lack of success. But the same right thought model continues to be taken for granted as a point of departure. The repeated wars on poverty in the USA ex
Human papillomaviruses (HPVs) exist as more than 100 distinct types. Variants of HPVs appear to be common findings while HPV subtypes have been considered rare. New information about subtypes has recently been reported by us. Our characterisation of subtype HPV38b[FA125] and the identification of several HPV isolates representing putative subtypes have considerably extended the knowledge about thi
Microfungi represent an important part of the fungal flora in coniferous forest soils and they play a significant role in the decomposition processes. Common genera and species isolated at 3 sites in Sweden, 2 of which have well developed Fe podzol soil profiles are presented. Fungal isolations were made with a soil-washing technique from 5 soil horizons. Aureobasidium and Cladosporium were only i
Plasma autoantibodies (aAbs) against the oxidized DNA base derivative 5-hydroxymethyl-2'-deoxyuridine (5-HMdU) are potential biomarkers of cancer risk and oxidative stress. We examined their association with a number of cancer risk factors: smoking, alcohol habits, body fatness, and absence of the glutathione S-transferases M1 and T1 (GSTM1 and GSTT1) in a sample from the population-based Malmö Di
Implementation of an in-mill biological treatment plant is one solution to the problems associated with closure of whitewater systems. It is, however, important to operate the treatment with low concentration of nutrients in the effluent. The effect on the COD reduction from decreased additions of NH4-N and PO4-P were investigated in three parallel aerobic suspended carrier reactors during treatme
Blue (or green) light induced reversible and irreversible absorption changes in etiolated wheat (Triticum aestivum) coleoptiles. Immediately after a 10 s pulse of blue light, there was an absorbance increase at 440 nm and a decrease at 420 nm. The absorbance at 440 nm returned to the original level in a biphasic way with 1st-order rate constants of 0.05 s-1 and 0.006 s-1 at 25.degree. C. The chang
Relationships between cytosolic free calcium ([Ca2+]i) in platelets, indices of systemic calcium metabolism and blood pressure were examined in 86 subjects; 29 patients with untreated and 29 patients with treated essential hypertension, six patients with borderline hypertension and 22 healthy reference subjects. In order to analyse interactions between the variables, multivariate statistical analy
The work is composed of three parts: - (1) An overview of the concept moisture deign with regard to service life. (this report) - (2) A practical application of service life analysis applied to frost damage, based on materials testing. (this report) - (3) A theroretical analysis of methods for service life design of concrete and concrete structures exposed to internal frost damage (Report TVBM-04/
Object. Cerebral vasospasm following subarachnoid hemorrhage (SAH) leads to reduced blood flow in the brain. Inspired by organ culture-induced changes in the receptor phenotype of cerebral arteries, the authors investigated possible changes in the 5-hydroxytryptamine (HT) receptor phenotype after experimental SAH. Methods. Experimental SAH was induced in rats by using an autologous prechiasmatic i
This paper discusses the ethics underlying the occupational repertoire of the post-industrial citizen, giving attention to lifestyle phenomena such as increased tempo and quantity of occupations; manipulation of time, organisms and environments; decreases in sleep, rest and play etc. In trying to understand human behavior in the 21st century, an ethical perspective is delineated and some starting
Hemopoietic stem cells (HSCs) are maintained at relative quiescence by the balance between the positive and negative regulatory factors that stimulate or inhibit their proliferation. Blocking the action of negative regulatory factors may provide a new approach for inducing HSCs into proliferation. A variety of studies have suggested that TGF-beta negatively regulates cell cycle progression of HSCs
Performance of computer-based systems may depend on many different factors, internal and external. In order to design a system to have the desired performance or to validate that the system has the required performance, the effect of the influencing factors must be known. Common methods give no or little guidance on how to vary the factors during prototyping or validation. Varying the factors in a
