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Popular Abstract in Swedish Idag lagras allt fler kartor digitalt och nya metoder krävs för att förbättra denna digitala hantering. Ett område som studerats under senare tid är automatiska metoder för kartografisk generalisering. Kartografisk generalisering innebär att man förenklar informationen i en karta för att göra den mer lättläst i den önskade skalan. Denna avhandling beskriver en optimerinCartographic generalisation is the process of simplifying a representation to suit the scale and purpose of a map. As such, generalisation has always been a central part in map production. This thesis is a contribution to the ongoing work on automating cartographic generalisation. Two topics are treated: optimisation methods in graphic generalisation, and propagation of updates between cartographi

Popular Abstract in Swedish Självmord och självmordsförsök orsakar mycket lidande för många människor i vårt samhälle. I Sverige begår ungefär 1800 personer självmord varje år. De flesta av dessa personer hade vid tiden för självmordet en psykisk sjukdom. Man har funnit att åtminstone hälften av dessa personer hade en depressionssjukdom, minst en fjärdedel hade alkoholproblem och c:a 5% led av schA suicide attempt is one of the most powerful predictors of eventual suicide. The aim of this thesis was to investigate the social situation, including social support of suicide attempters. One part of the investigations concerned patients admitted to a psychiatric ward following a suicide attempt. Another part concerned significant others (SOs) of suicide attempters, interviewed directly after th

Popular Abstract in Swedish Att kunna lokalisera och bedöma en partner är en av de, evolutionärt sett, viktigaste egenskaperna hos alla sexuellt reproducerande organismer. För att möjliggöra detta använder sig ett djur sig av olika (visuella, taktila, akustiska och kemiska) signaler för inomartskommunikation. Jag har genom att studera kemiska signaler för inomartskommunikation (s.k. feromoner) hoLocating and evaluating a suitable partner for mating is one of the most important events in any sexually reproducing organism. To achieve this, an animal must be able to locate its partner over both long and short distances, and finally evoke the proper mating behaviour. This is made possible by use of conspecific signals picked up by one or several sensory systems, the most well investigated bei

Norms and conventions have applied to most of our material culture. This seems to be especially obvious regarding Neolithic flint axes. The distinction between the unpolished and the polished flint axe is one aspect of the symbolism that is inherent in or ascribed to the axes when they become maces, with an important position in social life. The individuals and the society become not only owners o

Evidence is accumulating that pituitary hormone secretion is not only regulated by feedback from hormones produced in the target organs (long feedback) on the pituitary and the hypothalamus (feedforward), but also by a feedback of the hypophyseal hormones at the hypothalamic (short feedback) and the pituitary (ultra-short feedback) level. Inhibition of thyrotropin (TSH) and MSH secretion by pituit

The interest for the design of life environments for persons with dementia is growing stronger among architects, engineers, social scientists and those responsible for housing and health care planning. This development is connected to the enlarged group of people that become afflicted by this disease and to the fact that a safe environment is proved to be very important for their well-being as wel

Supported liquid membrane (SLM) extraction of Cu(II), with di(2-ethylhexyl) phosphate in kerosene as organic phase, has been studied using a flat PTFE membrane. The influence of donor phase flow rate on the extraction efficiency and the mass transfer coefficient was investigated. The dependence of extraction efficiency of Cu(II) on the presence of the humic acids (HA) in donor phase was also inves

Short-term cultures of samples from eight prophylactic mastectomies from five unrelated women who were genetically predisposed to breast cancer were analyzed cytogenetically. Clonal chromosome abnormalities were detected in five breasts. Three samples from two women had aberrations involving the short arm of chromosome 3, with a breakpoint in 3p14 in common. Three samples from three women had rear