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Cyanobacteria living epiphytically on mosses in pristine, unpolluted areas fix substantial amounts of atmospheric nitrogen (N) and therefore represent a primary source of N in N-limited boreal forests. However, the fate of this N is unclear, in particular, how the fixed N-2 enters the soil and becomes available to the ecosystem. In this study, we applied N-15-ammonium chloride (N-15-NH4Cl) onto ca

The temperature distribution in concrete structures varies as a result of fluctuations in solar radiation, air temperature, wind speed and long-wave radiation. Variations in temperature may cause longitudinal and transverse movements. If these movements are restrained, stresses and strains can be induced, which may contribute to cracking in the structure. To predict such thermal actions in a hollo

Partial migration is often considered a transitory stage between migration and residency, and whether partial migrants take weather conditions into account during migration is largely unknown. To assess whether partial migrants differ from regular migrants in their responses to weather, we compared the migratory intensity of a partial migrant, the Blue Tit (Cyanistes caeruleus), with more regular

En ny europeisk studie granskar hur allmänheten i sex länder ser på organtransplantationer och postnatala genetiska test. Det rör sig om Cypern, Österrike, Tyskland, Frankrike och Sverige. I undersökningen framkommer att de tillfrågade personernas funderingar följer två övergripande spår: Här finns å ena sidan tankar om den medicinska utvecklingens potential, å andra sidan reflektioner rörande desRecent developments in the field of biomedicine do not only constitute a challenge for the health care systems of modern societies. They also have a profound impact on the core concepts of individual and collective life. The corresponding changes of individual and collective identities take place within the framework of different historically shaped national conditions and traditions. This leads t

Use of beta-blockers and inhibitors of the renin angiotensin system (RAS) is established practice in the treatment of chronic heart failure (CHF). Clinical studies also suggest beneficial long-term effects of nitrates in CHF. In the Veterans Administration Heart Failure Trial (V-HeFT) I, the combined use of a nitrate and hydralazine reduced the mortality rate. However, it is not possible to determ

The foggy sky above a white ice-cover and a dark water surface (permanent polynya or temporary lead) is white and dark gray, phenomena called the "ice-sky" and the "water-sky," respectively. Captains of icebreaker ships used to search for not-directly-visible open waters remotely on the basis of the water sky. Animals depending on open waters in the Arctic region may also detect not-directly-visib

Background: Iceland's geographical isolation with a stable and small population gives a rare opportunity for follow-up studies of medical interventions. Total hip replacements (THR) have been done at FSA Central Hospital in Akureyri, Iceland since 1982 with the Exeter hip implant being in use from the beginning. Methods: Hospital records for all patients operated on with THR between 1982 and the e

This paper reports a pilot study and three case studies to examine aimed at studying if a quality system, according to the ISO 9000 quality standard, can be visualised, exploring how the visualisation should be designed in order to support continuous improvements and evaluating the design process for development of prototypes. By discussing with the research team, three companies in southern Swede

The aims were to follow stroke patients over time with respect to general pain, shoulder pain, weight loss, and health related quality of life (HRQOL), the latter also in stroke survivors' informal caregivers. Methods During a 1 year period, 416 first-ever stroke patients were included in the population based Lund Stroke Register; 327 survivors were followed up after four months and 305 one year