Sökresultat
Filtrera
Filtyp
Din sökning på "*" gav 529338 sökträffar
A theoretical model of the evolution of maternal effects under parent-offspring conflict
The evolution of maternal effects on offspring phenotype should depend on the extent of parent-offspring conflict and costs and constraints associated with maternal and offspring strategies. Here, we develop a model of maternal effects on offspring dispersal phenotype under parent-offspring conflict to evaluate such dependence. In the absence of evolutionary constraints and costs, offspring evolve
On the simulation of cohesive fatigue effects in grain boundaries of a piezoelectric mesostructure
Ferroelectric materials offer a variety of new applications in the field of smart structures and intelligent systems. Accordingly, the modelling of these materials constitutes an active field of research. A critical limitation of the performance of such materials is given when electrical, mechanical, or mixed loading fatigue occurs, combined with, for instance, microcracking phenomena. In this con
Modeling for HCCI Control
Due to the possibility of increased efficiency and reduced emissions, Homogeneous Charge Compression Ignition (HCCI) is a promising alternative to conventional internal combustion engines. Ignition timing in HCCI is highly sensitive to operating conditions and lacks direct actuation, making it a challenging subject for closed-loop control. This paper presents physics-based, control-oriented modeli
Perceptions of lymphoedema treatment in patients with breast cancer - a patient perspective
Lymphoedema after breast cancer surgery is a chronic condition. Lymphoedema treatment consists of information/advice, compression, physical exercise, skin care, and manual lymph drainage. Little is known about how patients experience, adapt, and respond to lymphoedema treatment. Thus, the purpose of the study was to investigate and describe women's perceptions of lymphoedema treatment after breast
Neutrophil-Derived Hyperresistinemia in Severe Acute Streptococcal Infections
The concept of neutrophil activation and degranulation as important contributors to disease pathology in invasive group A streptococcal infections has recently been emphasized. This study focuses on two of the most severe streptococcal manifestations, toxic shock syndrome and necrotizing fasciitis, and the newly described proinflammatory molecule resistin, known to derive from adipocytes and monoc
Acquisition of prosody : word accents, phrasing, and morphosyntax in a Swedish-English bilingual child at 30-32 months of age
Polsk Marialyrik
Recension av en doktorsavhandling i polsk litteratur, försvarad vid Uppsala universitet i december 2011.
Omläsning : Donna Haraway, "Manifesto for cyborgs: science, technology, and socialist-feminism in the 1980s"
Essay rereading Haraways Cyborg Manifesto
Soil structure and salinity effects of fish farming as compared to traditional farming in northeastern Egypt
Recently, fish farming instead of traditional agriculture has been seen as a way to increase agricultural profits from saline affected land. Concerns, however, have been raised that fish farming may increase the salinity problems. In the salinity affected soils of the El-Salam canal project area in Egypt, farmers are giving tip traditional farming for fish farming due to possibilities to increase
Direct and Indirect Drivers of Moss Community Structure, Function, and Associated Microfauna Across a Successional Gradient
Relative to vascular plants, little is known about what factors control bryophyte communities or how they respond to successional and environmental changes. Bryophytes are abundant in boreal forests, thus changes in moss community composition and functional traits (for example, moisture and nutrient content; rates of photosynthesis and respiration) may have important consequences for ecosystem pro
The interplay between bacterial community composition and the environment determining function of inland water bacteria
We hypothesized that habitats differing in water flow regime would differ in bacterial function either because of differences in the local environment, in bacterial community composition (BCC), or in the mechanism shaping BCC (community assembly). In 20 lakes and 17 inlet streams BCC was analyzed by terminal restriction fragment length polymorphism of the gene coding for 16S ribosomal RNA, and bac
Breast cancer and spider telangiectasias at diagnosis and its relation to histopathology and prognosis: a population-based study.
Angiogenesis is one of the hallmarks of breast cancer. The status of angiogenesis is important in therapy choice. Spider telangiectasias (telangiectasias) may reflect an increased ability to form vessels. Our first aim was to identify patient and tumor characteristics associated with the occurrence of telangiectasias at the time of breast cancer diagnosis. The second aim was to study the overall s
Movements of immature European Honey Buzzards Pernis apivorus in tropical Africa
Strandberg R., Hake M., Klaassen R.H.G. & Alerstam T. 2012. Movements of immature European Honey Buzzards Pernis apivorus in tropical Africa. Ardea 100: 157-162. Immature European Honey Buzzards Pernis apivorus are believed to remain in tropical Africa during the first years of their lives. We studied their movements during this period with the aid of satellite telemetry. After crossing the Sa
Fetal exposure to perfluorinated compounds and attention deficit hyperactivity disorder in childhood.
The association between exposure to perfluorinated compounds (PFCs) and attention deficit hyperactivity disorder (ADHD) diagnosis has been sparsely investigated in humans and the findings are inconsistent.
Approximations of variances and covariances for order statistics from the standard extreme value distribution
We consider simple approximations of variances and covariances for order statistics from the standard extreme value distribution. Exact values and simulation results of the variances and covariances for certain sample sizes are used to determine the validity of the suggested approximations.
Genetic variation in the invasive avian parasite, Philornis downsi (Diptera, Muscidae) on the Galapagos archipelago
BACKGROUND: Understanding the dispersal and genetic structure of invasive insects across islands is important for designing management plans that are appropriate at spatial and temporal scales. For invasive parasites, population dynamics are largely determined by the distribution and density of their host species. The introduced parasitic fly, Philornis downsi, parasitises nestlings of endemic bir
Persistence of various types of innovation analyzed and explained
This paper analyzes the persistency in innovation behavior of firms. Using five waves of the Community Innovation Survey in Sweden, we have traced the innovative behavior of firms over a ten-year period, i.e., between 2002 and 2012. We distinguish between four types of innovations: process, product, marketing, and organizational innovations. First, using transition probability matrix, we found evi
Marked improvement of overall survival in mantle cell lymphoma: a population based study from the Swedish Lymphoma Registry.
Abstract In recent years, more intensive chemotherapy regimens for mantle cell lymphoma (MCL) have been associated with prolongation of survival. In this study, our aim was to investigate prognostic factors and evaluate improvement in survival in MCL on a population level. The cohort included all patients diagnosed with MCL from 1 January 2000 to 31 March 2010 in the Swedish Lymphoma Registry. At
Regulating Pharmaceutical Industry Marketing: Development, Enforcement and Outcome of Marketing Rules
This essay reviews work in sociology and cognate fields regarding pharmaceutical marketing and its regulation. In particular, it considers how this literature contributes to a better understanding of the process of pharmaceuticalization, defined as “the translation or transformation of human conditions, capabilities, and capacities into opportunities for pharmaceutical intervention.” The review ad