Sökning: "Kjell Wallin"

Hittade 2 avhandlingar innehållade orden Kjell Wallin.

1. 1. Preanalytical errors in hospitals : implications for quality improvement of blood sample collection

   Författare :Olof Wallin; Christine Brulin; Kjell Grankvist; Johan Hultdin; Bethany van Guelpen; Ania Willman; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; medical errors; preanalytical; quality improvement; questionnaire; venous blood sampling; Clinical chemistry; Klinisk kemi;

   Sammanfattning : Background: Most errors in the venous blood testing process are preanalytical, i.e. they occur before the sample reaches the laboratory. Unlike the laboratory analysis, the preanalytical phase involves several error-prone manual tasks not easily avoided with technological solutions. LÄS MER

3. 2. Maternal investment in male and female offspring in the fallow deer

   Författare :Björn Birgersson; Kjell Wallin; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Animal physiology; Zoofysiologi; zoologi; Zoology;

   Sammanfattning : In this thesis, I investigate whether mothers of the polygynous fallow deer, Dama dama, bias their investment towards male offspring. I aim to answer the specific questions: (i) how is offspring fitness related to maternal investment?; (ii) do male fawns grow faster than female fawns during the period of maternal investment, and if so, why?; (iii) are male fawns more costly to raise than female fawns?; (iv) do fallow deer mothers adjust the sex of their offspring in relation to their ability to invest resources? To answer these questions I have collected and analysed data on reproduction of an enclosed fallow deer population and also performed an experimental study in which the level of investment was controlled for. LÄS MER