Tungmetallers påverkan på bottenfaunans artsammansättning i sjön Tisken

The purpose of this study was to investigate how elevated levels of heavy metals affect the faunal species composition, abundance and species-diversity. The bentic macroinvertebrate fauna in the highly polluted lake Tisken was compared with the bentic macroinvertebrate fauna in the unpolluted lake Varpan. Mine wastes account for most of the metal that is discharged into Tisken. The hypotheses was that the heavy metal pollutions in lake Tisken influenced the species composition, abundance and diversity of the macroinvertebrates. Twenty samples were taken in both sites. The invertebrates were collected with a bag net and a plastic cylinder one meter from the shoreline. The invertebrates in the forty samples were classified and statistical analyses were made.Some taxa, common at undisturbed sites, were missing at metal polluted sites. Mayfly larvae, Ephemeroptera, were only found in Varpan. Surprisingly, more taxa were found in the polluted lake Tisken (23 taxa) compared to the unpolluted Varpan (19 taxa). However, the abundance of macroinvertebrates in Varpan (291 individuals) was higher than in Tisken (242 individuals).

Reproduktionens inverkan på det slutliga tryckresultatet med djuptryck på MF-papper

To get an optimal print result with rotogravure on improved newsprint, MF-paper, knowledge aboutwhat adjustment that should be done through the whole production is needed. This degree project investigatesthe reproduction’s effect on the final print result.A test print is done at Quebecor World Nordic Interprint´s regular print unit. The evaluation of theprint shows how important the use of a unit adjusted ICC-profile is for the print quality. A comparisonbetween the two separation methods GCR and UCR shows that Interprint´s present ICC-profile, usingUCR as separation method, gives less missing dots. When the cylinder that prints the black ink isengraving whit a slower speed than normal the result shows that the colour becomes a little darker, thedetails becomes clear but the difference is very small.

Minimization of stock weight during close-die forging of a spindle

In this paper, Finite Element method and full-scale experiments have been used to study a hot forging method for fabri-cation of a spindle using reduced initial stock size. The forging sequence is carried out in two stages. In the first stage, the hot rolled cylindrical billet is pre-formed and pierced in a closed die using a spherical nosed punch to within 20 mm of its base. This process of piercing or impact extrusion leads to high strains within the work piece but requires high press loads. In the second stage, the resulting cylinder is placed in a die with a flange chamber and upset forged to form a flange. The stock mass is optimized for complete die filling. Process parameters such as effective strain distribution, material flow and forging load in different stages of the process are analyzed. It is concluded from the simulations that minor modifications of piercing punch geometry to reduce contact between the punch and emerging vertical walls of the cylinder appreciably reduces the piercing load. In the flange chamber, a die surfaces angle of 52° instead of 45° is pro-posed to ensure effective material flow and exert sufficient tool pressure to achieve complete cavity filling. In order to achieve better compression, it is also proposed to shorten both the length of the inserted punch and the die “tongues” by a few mm.

Glädje i vårdandets värld

Föreliggande vårdvetenskapliga studie har som syfte att avtäcka och synliggöra glädjesom idé i vårdandets värld. Glädje sammanbinds med vårdandet genom kärleken somden tongivande kraften hos glädje. Vårdandets sak har genom historien alltid varit attlindra lidande och att tjäna liv och hälsa i en anda av kärlek och barmhärtighet. Dennastudie om glädje i vårdandet har en övergripande idéhistorisk inriktning och resultatetsammanställs i form av ett idémönster. Tolkningen sker genom en hermeneutisk ansatsmed fokus på förståelse av själva vårdandet. För att djupare förstå glädje, dessursprungsidé, väsen och uttrycksformer granskas begreppet ’glädje’ och de näraliggandebegreppen ’glad’ och ’ljus’ i etymologiska ordböcker samt i svenska, engelska ochlatinska ordböcker. Som stöd för tolkningen används klassiska texter innehållandefilosofers tankar om glädje. Glädje som idé glimtar fram i form av ett sjufaldigtmönster. Detta mönster innehåller särdrag hos glädje och det hjärtas natur somrespektive särdrag förverkligas i. I andlig mening utgör hjärtat livets medelpunkt ochkänslornas hemvist. Mönstret bildar bakgrund och blir vägledande vid den hermeneutiska läsningen omglädje, så som den framträder i berättelser om vårdande under åren 1900–1933. Dehistoriska källorna utgörs av facktidskriften Svensk sjukskötersketidning, böcker medberättelser om vårdande, arkivmaterial samt läroböcker om vårdarbete. Resultatetmynnar ut i ett idémönster, där idéer om det som gör glädje verksamt som vårdandeframträder. Dessa är det sanna hjärtats rena glädje – kärlek, glädje är ett kärleksbevis.Det brinnande hjärtats djupa glädje – livsglädje, glädje inspirerar och genererar kraft.Det bärande hjärtats glansfulla glädje – generositet, glädje är en gåva till den andra medlöfte om hjälp. Det inbjudande hjärtats glittrande glädje – gemenskap, glädje inbjudertill gemenskap. Det upprymda hjärtats uppsluppna glädje – integration, glädje gör attmänniskan kan glömma sitt lidande och närma sig den hon önskar vara. Detstämningsfulla hjärtats högtidliga glädje – bevärdigande, glädje skapar en anda ochatmosfär där människan upplever sig hedrad. Det fridfulla hjärtats stora glädje –räddning, en glädje visar sig när människan har erhållit det som kan begäras av gott ochundsluppet ont och är förnöjd med sin levnads lott. Förhoppningen är att dennagrundforskning ska öppna för ett nytt seende som kan leda till att glädjeuppmärksammas i vårdandets värld och artikuleras där.

The Compromised Researcher : Issues in Feminist Research Methodologies

This article centres on issues of vulnerability and being compromised in feminist research where the focus has frequently been on researching the same. Compromise, here used in its pejorative sense, may for instance occur in terms of one’s research topic, the methods one utilizes, or the participants chosen for a study. Drawing on a range of examples including the methodological work of Ann Oakley (1981, 2000) as well as three articles on researching men that appeared in the journal Signs in 2005, I argue that feminist researchers, possibly because they work in an identity-based discipline, may be diversely vulnerable when researching the same and/or researching the different, and can be compromised both by how they are treated by those whom they encounter in their research and by their own behaviour in that context. I suggest that these concerns are under-articulated in feminist research and conclude with a series of questions that need to be raised. 

Hårda nypor för ett mjukt samhälle? : Om medialisering och rasifiering i utspelspolitikens Sverige

Toughness for a soft society? On medialisation, racialisation and the politics of spin in Sweden In recent years, issues concerning the future of “multicultural Sweden” have become a salient feature in Swedish politics. One important actor in recent years’ debates about the problems confronting “multicultural Sweden” is the Swedish Liberal Party. Since the general election of 2002, the party has gained both publicity and electoral support by focusing the question of “integration of immigrants” in terms of assimilation and intensified demands aimed at the “immigrant Others”. In this article, the party’s recent developments in the area of integration policy is analysed within the framework of two general processes in contemporary politics, the politics of racialisation and the medialisation of politics. The party’s successful interventions in the area of integration policy are built on an intimate as well as complex interplay between racialisation and medialisation. The agenda articulated by the party, further, has several similarities with the agenda of “authoritarian populist” movements throughout Europe.