Popular Abstract in Swedish Ända sedan Charles Darwin 1859 publicerade Om arternas uppkomst har just frågan om hur en art delas i två varit en central del av evolutionsbiologin. Darwin hade under resorna på HMS Beagle iakttagit hur bland annat härmtrastar och finkar på Galápagos varierade mellan öarna och drog slutsatsen att flera närbesläktade arter inom grupperna delade samma ursprung. Darwin beThe process of speciation is a cornerstone in evolutionary biology. In Darwin’s On the Origin of Species, he described how he imagined that a new species would evolve to fill an empty niche. This focus on ecology shifted with Mayr towards the importance of isolation, and for many decades the geographic modes of speciation were debated. Speciation in sympatry, i.e. without any isolation between the

Rapport i forskningsprojektet "Stadsdelsreformen i Malmö - en demokratiutvärdering".

Analysis of emerging trends in political theology among Christian theologians in Muslim societies -- Palestine, Sudan, Pakistan -- with consideration of their likely impact on global developments in Christian-Muslim dialogue

Hur en specifik lag – det må vara utlänningslagen, socialtjänstelagen eller lagen om djurskydd – utformas är av stor betydelse, eftersom den sätter ramarna för dess tillämpning. Men hur den tolkas och tillämpas av de ansvariga myndigheterna är en spegling av samverkande ekonomiska, politiska, ideologiska faktorer i samhället. Under 1989 trädde en ny utlänningslag i kraft. Den ger polisen större mö

Popular Abstract in Swedish Glatt muskulatur finns i mag-tarm kanalen, i blodkärl, i luftvägarna och i flera av urogenital organen och dess funktion på alla dessa platser är att förkorta sig och generera kraft. Så styrs t.ex. blodtrycket av sammandragning i artärer och vener och transporten av föda genom mag-tarm kanalen av rytmiska kontraktioner. Det är känt att koncentrationen av fritt kalcium iThe relationship between intracellular free calcium ([Ca2+]i) and force in smooth muscle was investigated in receptor-coupled permeabilized preparations and by fluorimetry of the calcium indicator Fura 2 in intact smooth muscle. The time integral of spontaneous [Ca2+]i transients in the intact rat portal vein was decreased by cyanide and, during tonic contraction, cyanide reduced force without cha

Popular Abstract in Swedish Hårt trängda vadare på strandängar Kustnära ängsmarker har utnyttjats av människan i hundratals, i vissa fall mer än i tusen år, som betesmarker för kreatur samt till slåtter för vinterfoder åt djuren. Dessa marker, till stor del skapade av människan, är attraktiva för många fågelarter. Här lägger dom sina bon och i anslutning till ängarna finns rikligt med mat till båMany wader (Charadrii) populations are declining throughout in Europe, but the underlying causes are often poorly known and diverse. To fully grasp the reasons behind declines in vulnerable wader populations, it is crucial to understand the demography. In my thesis, I have focused on the viability and management of waders occurring on coastal meadows in the Baltic Sea using redshank (Tringa totanu

The Research Training Network “Women in European Universities” focuses on career opportunities of women in higher education in seven European countries (Austria, France, Germany, Poland, Spain, Sweden and the United Kingdom). Within the frame of this network different aspects of career perspectives of women – and also men – are investigated. In a first working step a context analysis was conducted

Nucleotide metabolism and replication of nucleic acids are processes of fundamental importance. A crucial enzyme in nucleotide metabolism is dUTPase (E.C. 3.6.1.23), that catalyses the hydrolysis of dUTP to dUMP and pyrophosphate. The activity of the enzyme has influence on the outcome of DNA replication and complete loss of enzyme activity is lethal, while a decreased activity promotes increased

In this paper we estimate the level and inequality of income for Bechuanaland Protectorate by constructing four social tables between 1936 to 1964 using colonial archives and anthropological records. We present a working hypothesis that there is need to further analyze Botswana’s colonial era if we are to understand several aspects of contemporary economic structures. Our focus is on identifying t

In this paper we present an analysis of the effects of antenna placement on the radio channel properties for Vehicle-to-Vehicle communications based on measurements performed in three different propagation scenarios; highway, urban and rural. Four omni-directional antennas were mounted at four different positions: roof, bumper, left-side mirror and inside windscreen of two standard station wagons