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Abstract For nanotoxicology investigations of air-borne particles to provide relevant results it is ever so important that the particle exposure of, for example cells, closely resembles the "real" exposure situation, that the dosimetry is well defined, and that the characteristics of the deposited nanoparticles are known in detail. By synthesizing the particles in the gas-phase and directly deposi
Integration of III-V semiconductors on Si substrates allows for the realization of high-performance, low power III-V electronics on the Si-platform. In this work, we demonstrate the implementation of single balanced down-conversion mixer circuits, fabricated using vertically aligned InAs nanowire devices on Si. A thin, highly doped InAs buffer layer has been introduced to reduce the access resista
I september 1931 tvingades Sverige överge guldmyntfoten. Landet bytte myntfot – från guld till papper – med stabilisering av prisnivån som officiellt mål. Det var första och enda gången ett land försökt sig på något sådant. Sverige anses därigenom ha föregripit den inflationsmålspolitik som sedan 1990-talet bedrivs i ett antal länder, däribland Sverige. I denna bok undersöks hur den nya penning-
Prostate cancer is the most diagnosed cancer in men. The diagnosis is confirmed by pathologists based on ocular inspection of prostate biopsies in order to classify them according to Gleason score. The main goal of this paper is to automate the classification using convolutional neural networks (CNNs). The introduction of CNNs has broadened the field of pattern recognition. It replaces the classic
The tremendous increases in production of plastic materials has led to an accumulation of plastic pollution worldwide. Many studies have addressed the physical effects of large-sized plastics on organisms, whereas few have focused on plastic nanoparticles, despite their distinct chemical, physical and mechanical properties. Hence our understanding of their effects on ecosystem function, behaviour
The hematopoietic system is responsible for transporting oxygen and nutrients, fighting infections, and repairing tissue damage. Hematopoietic system dysfunction therefore causes a range of serious health consequences. Lifelong hematopoiesis is maintained by repopulating multipotent hematopoietic stem cells (HSCs) that replenish shorter-lived, mature blood cell types. A prokaryotic mechanism of im
An active single balanced down-conversion mixer is implemented using InAs nanowire metal oxide semiconductor field effect transistors (MOSFETs) as both active devices and passive resistive loads. Circuits with 6 dB low-frequency voltage gain and a 3 dB bandwidth of 2 GHz are measured for a DC power consumption of 3.8 mW from a 1.5 V supply. The circuits are fabricated using contacts made with 12 μ
This chapter reviews the historical development of the regulation of waste and chemicals in both international law and European Union (EU) law after the 1972 Stockholm Conference as well as some of the subsequent trends and themes. It also highlights the relevant interactions between EU and international law on these issues. The chapter ends with a discussion of how the regulatory frameworks relat
I denna uppsats undersöks hur musikkreatörer upplever de förändringar som skett i musikbranschen de senaste tio åren till följd av den tekniska utvecklingen i form av bland annat gratisteknologier och tjänster som Spotify samt fildelning. I undersökningen har kvalitativa metoder i form av intervjuer använts. Vi har utgått från ett antal teoretiska begrepp som exempelvis medielogik, mediekonvergens
I denna uppsats undersöks hur musiker upplever de förändringar som skett i musikbranschen de senaste tio åren till följd av den tekniska utvecklingen i form av bland annat gratisteknologier, exempelvis Spotify och Myspace, samt fildelning. I undersökningen har kvalitativa metoder i form av intervjuer använts. Vi har utgått från ett antal teoretiska begrepp som exempelvis medielogik, mediekonvergen
To examine the risk of sleep problems associated with work stress (job strain, job demands, and decision authority), worries and pain and to investigate the synergistic interaction between these factors and traffic noise. Sleep problems and predictor variables were assessed in a cross-sectional public health survey with 12,093 respondents. Traffic noise levels were assessed using modelled A-weight
We have fabricated single balanced down-conversion mixer circuits using InAs nanowire MOSFETs as both active and passive devices. This is achieved by a combination of electron beam lithography and UV-lithography with a line width of 12 mu m. The circuits exhibit a low frequency voltage conversion gain of 6 dB, a -3 dB cutoff frequency of 2 GHz and a power consumption of 3.8 mW, while operating at
Svensk populärvetenskaplig sammanfattning Fjärranalys av skogsskövling längs med den trans-amzoniska motorvägen Skogsskövling är ett av de större miljöproblemen vi har idag. Speciellt snabb har skövlingen varit i Amazonas regnskog, där minst tjugo procent försvunnit de senaste 40 åren. Fjärranalys används för att uppskatta skogsskövling längs med den transamazoniska motorvägen (BR230). Analysen utDeforestation is one of the biggest environmental challenges today. Especially severe has the deforestation of the Amazon rainforest been where at least 20% has been cleared the last 40 years. A time series analysis of deforestation rates between 1984 and 2013 has been performed on several sites close to the Trans-Amazonian highway BR230 in the Amazon and Para states. This is done by applying a su
The proto-oncogene SKI is highly expressed in human myeloid leukemia and also in murine hematopoietic stem cells. However, its operative relevance in these cells remains elusive. We have over-expressed SKI to define its intrinsic role in hematopoiesis and myeloid neoplasms, which resulted in a robust competitive advantage upon transplantation, a complete dominance of the stem and progenitor compar
The adaptive matched filter (AMF) is a method widely used in spectral unmixing to classify different tissue chromophores in photoacoustic images. However, a threshold needs to be applied to the AMF detection image to distinguish the desired tissue chromophores from the background. In this study, we propose an automatic threshold selection (ATS) algorithm capable of differentiating a target from th
Clinical monitoring of blood oxygen saturation (sO2) is traditionally performed using optical techniques, such as pulse oximetry and diffuse reflectance spectroscopy (DRS), which lack spatial resolution. Photoacoustic imaging (PAI) is a rapidly developing biomedical imaging technique that is superior to previous techniques in that it combines optical excitation and acoustic detection, providing a
Objectives: Ventilator-associated pneumonia (VAP) is difficult to diagnose using clinical criteria and no biomarkers have yet been proved to be sufficiently accurate. The use of the neutrophil-derived Heparin-binding protein (HBP) as a biomarker for pneumonia was investigated in this exploratory case–control study in two intensive care units at a tertiary referral hospital. Methods: Patients with
This study demonstrates the use of a photoelectrochemical device comprising earth-abundant hematite photoanode for the oxidation of 5-hydroxymethylfurfural (5-HMF), a versatile bio-based platform chemical, under ambient conditions in the presence of an electron mediator. The results obtained in this study showed that the hematite photoanode, upon doping with fluorine, can oxidize water even at low
BACKGROUND: Contact allergy to oxidized (ox.) linalool and ox. limonene has been reported to have a high prevalence, raising the question of inclusion into the baseline series. However, several important issues should be clarified and further investigated before inclusion can be warranted.OBJECTIVES: To report the trends of ox. terpenes allergy in patients with dermatitis, features of the patch te
