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Concentration-driven models revisited : Towards a unified framework to model settling tanks in water resource recovery facilities

A new perspective on the modelling of settling behaviour in water resource recovery facilities is introduced. The ultimate goal is to describe in a unified way the processes taking place both in primary settling tanks (PSTs) and secondary settling tanks (SSTs) for a more detailed operation and control. First, experimental evidence is provided, pointing out distributed particle properties (such as

Transparency vs magic numbers : The development of stair design requirements in the Italian Fire Safety Code

Practitioners may face difficulties in the interpretation of fire codes since they often present so called "magic numbers", i.e. numbers available in the codes which are listed for providing the design of building fire safety, for which the derivation and justification are not explained. The present paper discusses the need for a transparent regulatory approach, in which legislators publicly justi

The protagonist projection hypothesis

The protagonist projection hypothesis was formulated by Holton (1997) in order to account for cases where the speaker seems to utter contradictory statements. Holton argues that in these cases the speaker projects herself into the mind of someone else. Three different sentence-types have been classified as examples of protagonist projection: (i) sentences with factive verbs (tell+wh, know), (ii) s

Sound symbolism : The role of word sound in meaning

The question whether there is a natural connection between sound and meaning or if they are related only by convention has been debated since antiquity. In linguistics, it is usually taken for granted that 'the linguistic sign is arbitrary,' and exceptions like onomatopoeia have been regarded as marginal phenomena. However, it is becoming more and more clear that motivated relations between sound

Mission and Cosmopolitan Mothering : Saving Armenian Mothers and Orphans, 1902-1947

This article discusses and analyzes mothering that crosses boundaries of care in spite of differences of nationality, culture and religion. Swedish missionary Alma Johansson was one of a remarkable number of women missionaries who volunteered as relief workers during the Armenian refugee crisis. These women missionaries were often seen as mothers who were ‘saving a whole generation’. The article s

'Census Towns' in India and what it means to be 'urban' : Competing epistemologies and potential new approaches

The classification of 2 532 new settlements in the Census of India 2011 as 'urban', and specifically as 'Census Towns', has brought small and emerging urban centres back into the purview of urban studies and urban development in India. Taking this to be a point of entry, this article seeks to explore how the urban has been framed and approached from different and competing epistemological standpoi

A holistic approach to host-pathogen interactions : Detecting the large to unravel the small

Sepsis is one of the leading causes of mortality and morbidity in the world, and is an overreaction by the immune system due to pathogen invasion of the bloodstream. The interactions, particularly the protein interactions, between the host and pathogen are fundamental for the outcome of the disease. However, some of the protein interactions are unknown and those that are known have been studied as

When disaster strikes, acute stress disorder may follow

During and immediately following a traumatic event, people may manifest a pattern of dissociative and anxiety symptoms and other reactions, referred to as Acute Stress Disorder. A review of the empirical literature on psychological reactions to trauma suggest that this pattern of symptoms has often been identified across different kinds of traumatic events. It is likely to constitute a psychologic

Probing Electron Collisions in Nanostructures

We live in a time of wireless technologies, robotics and small computers with very high computing power. This is mainly due to a large emphasis given towards the study of semiconductor materials which are the building blocks of today's electronic industry. One of the secrets behind creating faster computers is the ability to integrate more and more transistors on a small semiconductor chip. GordonThis thesis studies the role of interaction between charged particles for transport and optical properties in nanostructures. Simulations are provided for a quantitative description of the system dynamics probed by either current spectroscopy or light absorption. In the first part of the thesis (Part I) the basic theories are described and in the second part of the thesis (Part II) the papers list

Combined structural methods to characterize an oligomeric small heat shock protein Hsp21

Undersökning av Hsp21 med korslänknings-masspektrometriMänniskans kropp består av ungefär 30 trillioner celler och varje cell innehåller omkring 100 000 proteiner. Föreställ dig om kroppen vore jordklotet, varje vävnad ett land och varje cell en stad. Varje stad vore då konstant som Paris i rusningstrafiken. Trafiken vore helt galen hela tiden och väldigt känslig för även den minsta störning. CellSmall heat shock proteins (sHsps) are found in all organisms and evolved early in the history of life, prior to the divergence of the three domains of life (Archaea, Bacteria, and Eukarya). Their malfunction is connected to several different diseases in humans, such as Alzheimer’s and Parkinson’s disease. sHsps are especially abundant in plants, where most are highly upregulated as the first line

Mixed-species associations can arise without heterospecific attraction

Despite widespread research on the interaction rules that drive group-living behavior in animals, little is known about the spatial self-organization of individuals in heterospecific groups. This has led to significant challenges in teasing apart the various mechanisms thought to underpin multispecies groups. One potentially useful approach for gaining an understanding of this process is to identi

Writing existential biographies as ecclesiastical history

Writing existential biography as ecclesiastical history could add important feaures to both biography and ecclesiastical history. Still, not all ecclesiastical biographies may be written as existential ones. Some must be confined to being windows towards the Church and age of their time -. and as such blinding or revealing, but always fascinating.

First-time fathers experiences of their prenatal preparation in relation to challenges met in the early parenthood period : Implications for early parenthood preparation

Objective to describe first-time fathers experiences of their prenatal preparation in relation to challenges met in the early parenthood period. Design a qualitative study was conducted and data was analysed with a phenomenographical approach. Setting and participants 15 first-time fathers were recruited from three postnatal units in southern Sweden and interviewed approximately one month after th

Dietary rose hip exerts antiatherosclerotic effects and increases nitric oxide-mediated dilation in ApoE-null mice

Atherosclerosis is a disease in which atheromatous plaques develop inside arteries, leading to reduced or obstructed blood flow that in turn may cause stroke and heart attack. Rose hip is the fruit of plants of the genus Rosa, belonging to the Rosaceae family, and it is rich in antioxidants with high amounts of ascorbic acid and phenolic compounds. Several studies have shown that fruits, seeds and

On the complexity of screening detected abdominal aortic aneurysms : A retrospective observational multicenter cohort study

BACKGROUND: Ultrasound screening for abdominal aortic aneurysms (AAA) has been shown to decrease aneurysm related mortality. Likely by providing an opportunity to intervene while the aneurysm is still intact, but possibly also when and the anatomy still relatively uncomplicated which would provide a less complex procedure. Our aim was to retrospectively investigate the complexity of repair for scr

Molecular classification of urothelial carcinoma : global mRNA classification versus tumour-cell phenotype classification

Global mRNA expression analysis is efficient for phenotypic profiling of tumours, and has been used to define molecular subtypes for almost every major tumour type. A key limitation is that most tumours are communities of both tumour and non-tumour cells. This problem is particularly pertinent for analysis of advanced invasive tumours, which are known to induce major changes and responses in both