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Modelling the dynamics of wastewater treatment processes / Modellering av dynamiska förlopp i vattenreningsprocesser

The main objective of the paper is to briefly describe and exemplify some of the work that has been carried out within the STAMP project at IEA at Lund Institute of Technology within the field of mathematical modeling of wastewater treatment (WWT) processes. Three main areas have been identified - reduced-order models of the activated sludge process, modelling of biofilm processes including some e

Frequency analysis of atrial fibrillation from surface electrocardiograms

Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Neither the natural history of AF nor its response to therapy are sufficiently predictable by clinical and echocardiographic parameters. Atrial fibrillatory frequency (or rate) can reliably be assessed from the surface electrocardiogram (ECG) using digital signal processing (filtering, subtraction of averaged

Texthistoria – vad är det?

The notion ‘textual history’ (Sw. texthistoria) has often been used in a narrow philological sense denoting the history of version of a single work. Today it is however, at least in the Nordic languages, used in other connections as well, not least within discourse analysis. The article shows that textual history theoretically could be understood as (1) the history of text(s) as language in use, w

Interactions of histidine-rich glycoprotein with immunoglobulins and proteins of the complement system.

This study describes how the serum protein histidine-rich glycoprotein (HRG) affects the complement system. We show that HRG binds strongly to several complement proteins: C1q, factor H and C4b-binding protein and that it is found complexed with these proteins in human sera and synovial fluids of rheumatoid arthritis patients. HRG also binds C8 and to a lesser extent mannose-binding lectin, C4 and

The Antibacterial Chemokine MIG/CXCL9 Is Constitutively Expressed in Epithelial Cells of the Male Urogenital Tract and Is Present in Seminal Plasma.

ABSTRACT The integrity of the urogenital tract against potentially invasive pathogens is important for the health of the individual, fertilization, and continuance of species. Antibiotic peptides with broad antimicrobial activity, among them chemokines, are part of the innate immune system. We investigated the presence of the antibacterial interferon (IFN)-dependent CXC chemokines, MIG/CXCL9, IP-1

Låt oss utmanas av texterna

"Jag tror att Gud ständigt talar genom sitt ord, men jag ser inte varför vi som bekännande kristna därför skulle vara rädda för att ställa vissa frågor till texten. Det skriver David Willgren i en replik till Göran Lennartsson."

Item-level indoor localization with passive UHF RFID based on tag interaction analysis

Radio-frequency identification (RFID) with a received signal strength indicator (RSSI) is a low-cost and low-complexity approach for item-level indoor localization. Although RSSI-based algorithms suffer from multipath effect and other environmental factors, reference tags and RSSI changes can be utilized to further improve the localization accuracy. However, the current algorithms lack deep analys

Cytokines and systemic biomarkers are related to the size of abdominal aortic aneurysms.

Objective: The etiology of abdominal aortic aneurysm (AAA) includes atherosclerotic, inflammatory, immunological and coagulatory mechanisms. The aim of this study was to evaluate associations between markers for some of these mechanisms and AAA-size, in order to identify markers which might later be evaluated in relation to aneurysm growth. Material and methods: Prospectively 360 AAA-patients and

Factors affecting success of galls of Aditrochus coihuensis (Hymenoptera: Pteromalidae)

Abstract in Spanish Agallas provocadas por Aditrochus coihuensis (Hymenoptera: Pteromalidae) sobre su hospedero, Nothofagus dombeyi, fueron colectadas en la vecindad de San Carlos de Bariloche, Argentina, durante la primavera de 2007. Las mismas fueron examinadas y clasifi cadas como exitosas o no, sobre la base de restos de insectos dentro de ellas y el diámetro del agujero de emergencia. DistintGalls of Aditrochus coihuensis (Hymenoptera:Pteromalidae) were collected from their host tree, the southern beechNothofagus dombeyi, near San Carlos de Bariloche, Argentina, during thespring of 2007. Galls were carefully examined and classified as successfulor unsuccessful based on insect remains and emergence-hole diameter.Gall properties (diameter, wall thickness, chamber diameter, walltoughness

An anticancer drug suppresses the primary nucleation reaction that initiates the production of the toxic Aβ42 aggregates linked with Alzheimer's disease.

The conversion of the β-amyloid (Aβ) peptide into pathogenic aggregates is linked to the onset and progression of Alzheimer's disease. Although this observation has prompted an extensive search for therapeutic agents to modulate the concentration of Aβ or inhibit its aggregation, all clinical trials with these objectives have so far failed, at least in part because of a lack of understanding of th

Concrete strategy for the Oresund Tunnel

This paper gives a short review of the most requirements for the concrete to be used for the 3.510 m long immersed tunnel from Amager (outside Copenhagen Airport) to an artificial double island south of Saltholm (in the middle of Oresund). The basis for the requirements is shortly commented.