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A mathematical model for the hindered diffusion and competitive adsorption of two proteins in an agarose gel has been developed. In a simulation program the model has been used to study the competing and displacement effects on a single bead for lysozyme and bovine serum albumin (BSA) bound to the ligand Cibacron Blue in agarose gel. The model takes into account hindered diffusion described by the
The present communication considers possibilities of how to improve surveillance programs for sexually transmitted infections and some conditions not yet included among the 'established' sexually transmitted infections. An extended list of sexually transmitted infection agents is proposed for monitoring and a syndrome-based surveillance program for what and when to screen pregnant women is discuss
This paper provides an overview of the state-of- the-art radio propagation and channel models for wireless multiple-input multiple-output (MIMO) systems. We distinguish between physical models and analytical models and discuss popular examples from both model types. Physical models focus on the double-directional propagation mechanisms between the location of transmitter and receiver without takin
Objective: To estimate whether obese women have an increased risk of orofacial clefts in their offspring, compared with average-weight women. Design and Participants: The study was based on information on maternal body mass index (BMI) collected in early pregnancy and on the existence of orofacial clefts in the offspring, ascertained from multiple sources. The study included 1686 women who had inf
Length and area regularization are commonplace for inverse problems today. It has however turned out to be much more difficult to incorporate a curvature prior. In this paper we propose several improvements to a recently proposed framework based on global optimization. We identify and solve an issue with extraneous arcs in the original formulation by introducing region consistency constraints. The
The use of coarse-grain reconfigurable architectures (CGRA) is a suitable alternative for hardware acceleration in many application areas, including digital holographic imaging. In this paper, we propose a CGRA-based system with an array of processing and memory cells, which communicate using a local and a global communication network, and a stream memory controller to manage data transfers to ext
The accuracy of NOAA AVHRR NDVI maximum value composites can be poor due to interference from several sources, including cloud cover. The objectives of this paper are; 1. to accurately quantify noise in this imagery over Africa using geostatistics, and 2. to test four compositing techniques that may be able to reduce this noise. The nugget of the variogram model is used to compute standardized noi
This case book has been compiled within the framework of Phase III of the programme on Regional Air Pollution in Developing Countries (RAPIDC) funded by the Swedish International Development Cooperation Agency (Sida) and coordinated by the Stockholm Environmental Institute (SEI). This work has been produced by the International Institute of Industrial Environmental Economics (IIIEE) at Lund Univer
Based on observations of the rhythmic structure of L2-speech produced by L1-speakers of Albanian – which suggest the occurrence of transfer – a study is presented here that compares durational aspects between the two languages. In order to do this, speech read by Swedish and Albanian L1-speakers was recorded and investigated, and normalized durational factors were analysed. The results, however, d
The increasingcost for System-on-Chip (SOC) testing is mainly due to the hugetest data volumes that lead to long test application time andrequire large automatic test equipment (ATE) memory. Testcompression and test sharing have been proposed to reduce the testdata volume, while test infrastructure and concurrent testscheduling have been developed to reduce the test application time.In this work w
The objective of the seminar was to summarize, discuss, question and conclude the present state-of-the-art on prediction models for corrosion initiation due to chloride ingress in structures exposed to sea water and de-icing salts. Papers were presented on various topics. A test case was designed and the experts made predictions of chloride ingress for this well-defined case.
The paper argues that the final value of an object, i.e., its value for its own sake, need not be intrinsic. It need not supervene on the object’s internal properties. Extrinsic final value, which accrues to things (or persons) in virtue of their relational features, cannot be traced back to the intrinsic value of states that involve these things together with their relations. On the opposite, suc
We propose a simple, general and computationally efficient algorithm for maximum likelihood estima- tion (MLE) of parameters in diffusion and jump-diffusion processes. This is conducted within a Monte Carlo EM-algorithm, where the smoothing distribution is computed using resampling. The results are encouraging as we can approximate the MLE well for the models studied when using simulated data. We
Popular Abstract in Swedish Denna avhandling består av en tillämpad och en teoretisk del. I den tillämpade delen studeras tänkbara riskfaktorer för blodsjukdomarna myeloisk leukemi (ML) och myelodysplastiska syndrom (MDS). Den teoretiska delen tar upp några metodproblem som kan uppstå i epidemiologiska undersökningar som utnyttjar databaser innehållande uppgifter om andelen personer i olika yrkesgCase-control studies comprising telephone interviews for 333 cases of acute myeloid leukemia (AML), 226 cases of Philadelphia chromosome-positive chronic myeloid leukemia (Ph+ CML), 330 cases of myelodysplastic syndromes (MDS), and matched controls were conducted. Information had to be obtained from next-of-kin much more often for cases (85%) than for controls (18%). Tobacco smoking was associated
A general approach to derive summation rules in electromagnetics using Herglotz functions is presented in this paper. This approach is then used to obtain summation rules and bounds on partial wave scattering, which are illustrated numerically by the scattering of a Drude sphere.
Cellulose can be chemically modified to produce derivatives with specific properties. Knowledge of correlations between the modification reaction, substituent distribution, origin of cellulose and properties are importaint in order to design processess so as to produce derivatives with the desired properties. This thesis describes research on newly developed analytical methods for the analysis of
