Sökning: "cost of reproduction"

Visar resultat 6 - 10 av 47 avhandlingar innehållade orden cost of reproduction.

  1. 6. Stress urinary incontinence among women. Aspects of risk factors, evaluation and surgical treatment

    Författare :Jan Persson; Lund Obstetrik och gynekologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; andrology; gynaecology; Obstetrics; minimally invasive surgery.; evaluation; risk factors; Female stress urinary incontinence; reproduction; sexuality; Obstetrik; gynekologi; andrologi; reproduktion; sexualitet;

    Sammanfattning : The etiology of female stress urinary incontinence (SUI) is unclear. By linking three nationwide medical registries we evaluated maternal and obstetric factors associated with later SUI surgery. Surgery for SUI was strongly associated with vaginal delivery, but not with pregnancy as such. LÄS MER

  3. 7. Minimal conization with carbon dioxide laser for treatment of cervical intra-epithelial neoplasia

    Författare :Zoltan Bekassy; Lund Obstetrik och gynekologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; gynaecology; Obstetrics; preterm birth; pregnancy; laser; follow-up; conization; Cervical carcinoma; cervical intraepithelial neoplasia; andrology; reproduction; sexuality; Obstetrik; gynekologi; andrologi; reproduktion; sexualitet;

    Sammanfattning : 3,100 non-pregnant women and 85 pregnants were miniconized during the 15-year period ending 1994 . The outpatient procedure of minimal conization using a freehand-guided, high power 60W carbon dioxide laser focused to 0.1 mm in spot-size, giving high power density 165,000 W/cm2, produces single-piece tissue specimens for histological examination. LÄS MER

  4. 8. Causes and consequences of life-history variation : The effects of parasites, glucocorticoids, and environmental conditions in the collared flycatcher (Ficedula albicollis)

    Författare :Kevin Fletcher; Lars Gustafsson; Anders Pape Moller; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Collard flycatcher; Haemosporidian blood parasite; glucocorticoid; life history;

    Sammanfattning : Life-history is the study of all the different stages of life that affect reproductive success and survival between the birth and death of an organism. The reproductive output of an organism is constrained by many things including time, resource, disease agents and environmental conditions. LÄS MER

  5. 9. Resource economy of carnivorous plants: Interactions between prey capture and plant performance in three subarctic Pinguicula species

    Författare :Magnus Thorén; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant ecology; income breeder; capital breeder; supplementary feeding; reproductive effort; life-history; cost of reproduction; Växtekologi;

    Sammanfattning : In this thesis, I have studied in situ the resource economy of the three carnivorous plant species Pinguicula alpina, P. villosa and P. vulgaris in a subarctic environment. The prey capture varied among individual plants, years and species. LÄS MER

  7. 10. Strategy games; on survival and reproduction

    Författare :Helen Olofsson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ekologi; Ecology; evolution of sexual reproduction; dormancy; game theory; migration; bet-hedging; Life history theory;

    Sammanfattning : Classical evolutionary life history concerns questions such as optimal timing of maturation, life span and number of offspring. These questions have mostly been studied theoretically under the assumption that the environment is stable and without taking into account frequency and density dependence. LÄS MER