Sökresultat

Filtyp

Din sökning på "local seo results 【BestSeoSite: Seotonight.com】.ktMI" gav 8889 sökträffar

Current routines for transrectal ultrasound-guided prostate biopsy: A web-based survey by the Swedish Urology Network

Objective. This study aimed to survey current Swedish practices for performing and handling transrectal ultrasound-guided prostate biopsies. Material and methods. A Swedish Urology Network (SUNe) was organized for the distribution of information, survey studies and research collaborations. A web-based questionnaire was distributed to the members in 2011. Results. In this first SUNe survey, 137 (91

Contrasting effects of habitat area and connectivity on evenness of pollinator communities

Losses of both habitat area and connectivity have been identified as important drivers of species richness declines, but little theoretical and empirical work exists that addresses the effect of fragmentation on relative commonness of highly mobile species such as pollinating insects. With a large dataset of wild bee and butterfly abundances collected across Europe, we first tested the effect of h

Managing Swedish Newspapers in the Digital Age An Investigation of Managerial Responsibility and Innovation

The whole word has been getting somewhat familiar with the crisis that the newspaper industry has been experiencing. The past decade has seen print mainly absorbing finances with little to no profits, and the ever-growing digital not offering enough advertising revenue. Hence, the challenges managers face becomes clear: how can we innovate effectively when the current system is a loophole? Additio

Coral reef carbonate chemistry variability at different functional scales

There is a growing recognition for the need to understand how seawater carbonate chemistry over coral reef environments will change in a high-CO2 world to better assess the impacts of ocean acidification on these valuable ecosystems. Coral reefs modify overlying water column chemistry through biogeochemical processes such as net community organic carbon production (NCP) and calcification (NCC). Ho

Optical Investigation on the Combustion Process Differences between Double-Pilot and Closely-Coupled Triple-Pilot Injection Strategies in a LD Diesel Engine

The combustion processes of three injection strategies in a light-duty (LD) diesel engine at a medium load point are captured with a high speed video camera. A double-pilot/main/single-post injection strategy representative of a LD Euro 6 calibration is considered as the reference. There is a modest temporal spacing (dwell) after the first pilot (P1) and second pilot (P2). A second strategy, "A,"

Implementing NLO DGLAP evolution in parton showers

We present a parton shower which implements the DGLAP evolution of parton densities and fragmentation functions at next-to-leading order precision up to effects stemming from local four-momentum conservation. The Monte-Carlo simulation is based on including next-to-leading order collinear splitting functions in an existing parton shower and combining their soft enhanced contributions with the corr

Genetic effects on life-history traits in the Glanville fritillary butterfly

BackgroundAdaptation to local habitat conditions may lead to the natural divergence of populations in life-history traits such as body size, time of reproduction, mate signaling or dispersal capacity. Given enough time and strong enough selection pressures, populations may experience local genetic differentiation. The genetic basis of many life-history traits, and their evolution according to diff

Whole mitochondrial genome phylogeny of a community of Haemoproteus parasites - evolutionary patterns of host specificity and transmission

Whole mitochondrial genome sequences have the potential to clarify avian haemosporidian phylogenies and evolution. In this study, we sequenced mitochondrial genomes from isolates of 26 genetic lineages of avian haemosporidian parasites of the genus Haemoproteus (subgenus Parahaemoproteus) with a nested long-range PCR protocol and next-generation sequencing. We identified more mixed infections than

Species interactions govern evolutionary and ecological effects of population harvesting

Popular Abstract in Swedish FISKETS EFFEKTER BEROR PÅ SAMSPELET MELLAN ARTER Fiske och jakt, så kallad populationsbeskattning, påverkar den fiskade eller jagade populationen på en rad olika sätt. Den direkta effekten är uppenbar: dödligheten ökar, och antalet individer i populationen minskar. I förlängningen påverkar denna minskning också andra arter, som t ex äter eller äts av individerna i den bHarvesting changes population abundance and can affect adaptation of several life-history traits. Harvesting can also have indirect effects ? effects on non-target species and secondary effects on target species ? because interactions between species in a community determine the relevant ecological and evolutionary feedback environment. Species interactions therefore influence the effect of harves

Experimental and Numerical Assessment of Active Pre-chamber Ignition in Heavy Duty Natural Gas Stationary Engine

Gas engines (fuelled with CNG, LNG or Biogas) for generation of power and heat are, to this date, taking up larger shares of the market with respect to diesel engines. In order to meet the limit imposed by the TA-Luft regulations on stationary engines, lean combustion represents a viable solution for achieving lower emissions as well as efficiency levels comparable with diesel engines. Leaner mixt

Local adaptation to UV radiation in zooplankton : a behavioral and physiological approach

Ultraviolet radiation (UVR) is recognized as a driving force for phenotypic divergence. Here, we aim at assessing the ability of zooplankton to induce UVR tolerance and disentangle the relative importance of local adaptations behind the expression of such tolerance. Two populations of Daphnia pulex, derived from environments strongly differing in UVR conditions, were exposed to UVR for 70 d to ind

Nanoparticle-based drug delivery systems for neural interfaces - a novel approach for improved biocompatibility.

The overall purpose of this thesis was to reduce brain tissue responses around implanted microelectrodes using a pharmacological strategy. One of the main aims was to develop and evaluate drug delivery systems that allow local administration of anti-inflammatory pharmaceutics. The drug Minocycline was therefore encapsulated into biodegradable poly (D,L-lactic-co-glycolic acid) nanoparticles and th

Towards unravelling Wolbachia global exchange : a contribution from the Bicyclus and Mylothris butterflies in the Afrotropics

Background: Phylogenetically closely related strains of maternally inherited endosymbiotic bacteria are often found in phylogenetically divergent, and geographically distant insect host species. The interspecies transfer of the symbiont Wolbachia has been thought to have occurred repeatedly, facilitating its observed global pandemic. Few ecological interactions have been proposed as potential rout

A carbon nanotube gated carbon nanotube transistor with 5 ps gate delay

Semiconducting carbon nanotubes (CNTs) are attractive as channel material for field-effect transistors due to their high carrier mobility. In this paper we show that a local CNT gate can provide a significant improvement in the subthreshold slope of a CNT transistor compared to back gate switching and provide gate delays as low as 5 ps. The CNT gated CNT transistor devices are fabricated using a t

Asymptotic Performance Analysis of Distributed Non-Bayesian Quickest Change Detection with Energy Harvesting Sensors

This paper focuses on the distributed non-Bayesian quickest change detection based on the Cumulative Sum (CUSUM) algorithm in an energy harvesting wireless sensor network (WSN), where the distributions before and after the change point are assumed to be known. Each sensor is powered by randomly available harvested energy from the surroundings. It samples the observation signal and computes the log

Insights on Genetic and Environmental Factors in Parkinson's Disease from a Regional Swedish Case-Control Cohort

BACKGROUND: Risk factors for Parkinson's disease (PD) can be more or less relevant to a population due to population-specific genetic architecture, local lifestyle habits, and environmental exposures. Therefore, it is essential to study PD at a local, regional, and continental scale in order to increase the knowledge on disease etiology.OBJECTIVE: We aimed to investigate the contribution of geneti

Seasonal variation in the thermal responses to changing environmental temperature in the world's northernmost land bird

Arctic homeotherms counter challenges at high latitudes using a combination of seasonal adjustments in pelage/plumage, fat deposition and intricate thermoregulatory adaptations. However, there are still gaps in our understanding of their thermal responses to cold, particularly in Arctic birds. Here, we have studied the potential use of local heterothermy (i.e. tissue cooling that can contribute to

Fibre directions at a branch-stem junction in Norway spruce : a microscale investigation using X-ray computed tomography

The connection between branch and trunk in a tree must be strong enough to transfer all loads acting on the branch, and it is well known that such branch-stem connections are indeed very strong. In this paper, X-ray computer tomography is employed to investigate the local fibre orientation in the close surrounding of a knot in a Norway spruce specimen to better understand the origins of the mechan

Androgen deprivation therapy potentiates the efficacy of vascular targeted photodynamic therapy of prostate cancer xenografts

Purpose: WST11 vascular targeted photodynamic therapy (VTP) is a local ablation approach relying upon rapid, free radical-mediated destruction of tumor vasculature. A phase III trial showed that VTP significantly reduced disease progression when compared with active surveillance in patients with low-risk prostate cancer. The aim of this study was to identify a druggable pathway that could be combi

Explicit Form of Lyapunov Functions for a Class of Nonlinear Feedback Systems Augmented with Observers

The paper suggests conditions for presence of quadratic Lyapunov functions for nonlinear observer based feedback systems with an 'input nonlinearity' in the feedback path. Provided that the system using state feedback satisfies the Circle Criterion (i.e., when all states can be measured), we show that the extended system with only output feedback control from a (full state) Luenberger-type observe