Filetype
The present paper explores the TL characteristics of Ag, Cu and Ni doped and co-doped Li2B4O7 nano-composites (NCs). These NCs were synthesized via a Sol–gel process. The influence of doping agents on the optical and TL properties of Li2B4O7 NCs was investigated. Obtained nano-composites were calcined at 700 °C for 8 h. The incorporation of Ag, Cu and Ni impurities in Li2B4O7 lattice has been conf
In this study, a synthesis process based on the microemulsion method (ME) was developed with the aim to produce controlled-size starch nanoparticles (SNPs). Several formulations were tested for the preparation of the W/O microemulsions varying the organic/aqueous phase ratios and co-stabilizers concentrations. SNPs were characterized in terms of size, morphology, monodispersity and crystallinity.
Significant collaborations with research partners in China are seen in many Western countries. With increasing geopolitical tensions governments, research institutions and individuals are increasingly called upon to address a proliferating array of risks and challenges associated with scientific collaboration with China. The situation is characterised by two parallel, intertwined processes. On the
This paper presents a new Hardware (HW) im- plementation proposal for Discrete Fourier Transform (DFT) based channel estimators. The presented algorithm uses the high time correlation property of the channel estimates to reduce the complexity and the power consumption by utilizing a lower number of bits for the FFT in the channel estimator, compared to a traditional approach. The idea is that the
Popular Abstract in Swedish Ekokardiografisk undersökning av hjärtat utvecklades i Lund i början av 1950 talet av kardiologen Inge Edler tillsammans med fysikern Helmuth Hertz och har under de första 30 åren huvudsakligen utförts via bröstkorgsväggen så kallat transthorakalt ultraljud. Under 1980 talet utvecklades tekniken och man fick instrument som via matstrupen kunde utföra en ekokardiografiskThe subject of this thesis is the clinical use of transesophageal echocardiography (TEE) in patients with stroke or atrial fibrillation. Subjects were examined with echocardiography and sonography of the carotid artery. A control group of randomly selected volunteers without cerebrovascular disease was compared to patients with ischemic stroke. Cardiac pathology was classified as minor potential e
Meta Isæus-Berlin at Skissernas museum Many visitors will surely remember Ett vattenhem (A Water Home), five strikingly ambiguous furnished rooms set out on a low podium in the middle of the main walkway at the Bo01 Housing Fair in Malmö in 2001. The Hall and the Bathroom, at opposite ends of the long and narrow, windowless pavilion, were open to the world and visible from outside. The Bathroom
An interesting class of intelligent tutoring systems are systems that are able to detect and recognize affective responses and states in students, and use such data to adapt its feedback, guidance and instruction. The article presents affective responses and states considered relevant for learning, and methods that have been proposed or used to detect such responses and states. We focus on the aff
A contaminated site at Lernacken in southern Sweden, formerly used for sludge disposal, was investigated using a 3-D resistivity imaging technique. The data acquisition was carried out using a roll-along technique for 3-D data acquisition that allows using standard multielectrode equipment designed for engineering and environmental applications. The technique allows for the measurement of large tr
In the course of a few months in 1997, about 20 per cent of Stockholm Stock Exchange's primary-list firms transferred to the Exchange's secondary list due to a new tax policy. Drawing on a theory of social influence, we suggest that the transfer decisions depended both on the firms' social embeddedness with other firms in the population at risk and their economic predisposition to make such transf
A new mu-oxo diiron(III) complex of the lithium salt of the pyridine-based unsymmetrical ligand 3-[(3-{[bis(pyridin-2-ylmethyl)amino]methyl}-2-hydroxy-5-methylbenzyl)(pyridin2-ylmethyl)amino] propanoate (LiDPCPMPP), [Fe-2(mu-O)(LiDPCPMPP)(2)](ClO4)(2), has been synthesized and characterized. The ability of the complex to catalyze oxidation of several alkanes and alkenes has been investigated by us
An LTE-enabled smartphone is a software-defined radio system that must cover a large number of frequency bands with different duplex differences. A proposed adaptive wideband duplexer needs a circulator to create the required initial isolation. To replace this an LC-based tunable low-isolation device is presented in this paper, providing the required tuning range for LTE Band I, II, III and VII. T
A sensitive method for the detection of staphylococcal enterotoxin B (SEB) using a flow-injection capacitive biosensor is presented. SEB was purified from a crude culture filtrate of Staphylococcus aureus through three chromatographic steps. The first two steps were based on ion-exchange chromatography, and the last step was carried out on a gel filtration column. The SEB recovery values after the
This paper describes the development of a novel modelling tool for evaluation of solid oxide fuel cell (SOFC) performance. An artificial neural network (ANN) is trained with a reduced amount of data generated by a validated cell model, and it is then capable of learning the generic functional relationship between inputs and outputs of the system. Once the network is trained, the ANN-driven simulat
In this work, we reconstructed in vitro the behavior of two motor proteins-myosin and actin-responsible for the mechanical action of muscle cells. By transferring this in vivo system to an artificial environment, we were able to study the interaction between the proteins in more detail, as well as investigating the central mechanism of force production. Nm-patterning by e-beam lithography (EBL) co
Using a novel experimental approach based on near-infrared femtosecond absorption spectroscopy, we have determined the energy of the S-1 state of the carotenoid spheroidene. The energy of this state is 13 400 +/- 90 cm(-1) at both 293 and 186 K, showing that there is no temperature-induced shift of the S-1 level. A discrepancy of about 800 cm(-1) between the S-1 energy determined here and that obt
We have investigated how high-order harmonics generated in rare gases depend on the atomic density. The peak and the profile of the atomic density in the interaction region were measured as a function of the backing pressure and the distance from the nozzle by a differential interferometry technique, The conversion efficiency for the harmonics in the plateau was found to increase approximately qua
Measurements of fiducial cross sections for the electroweak production of two jets in association with a Z-boson are presented. The measurements are performed using 20.3 fb(-1) of proton-proton collision data collected at a centre-of-mass energy of = 8 TeV by the ATLAS experiment at the Large Hadron Collider. The electroweak component is extracted by a fit to the dijet invariant mass distribution
Nursing homes are a setting in which death and dying is common. How death and dying is articulated and the actions that take place in a nursing home constitute a discourse that guides the staff in their work. The aim of this study was to explore the discourse of death and dying in nursing homes from the perspective and understanding of the staff. The study draws on Foucault’s discourse analysis. D
In recent years, two Swedish companies have been a focus of substantial media attention: TeliaSonera and Lundin Petroleum. The defensive strategies employed by these two businesses to deal with allegations of crime will be analysed on the basis of Stanley Cohen’s theoretical work on processes of denial and neutralisation techniques. This paper will focus on a particular form of denial, namely the In recent years, two Swedish companies have been a focus of substantial media attention: TeliaSonera and Lundin Petroleum. The defensive strategies employed by these two businesses to deal with allegations of crime will be analysed on the basis of Stanley Cohen’s theoretical work on processes of denial and neutralisation techniques. This paper will focus on a particular form of denial, namely the
