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Many of the morphological features of animals are considered to be adaptations to the habitat that the animals utilize. The habitats utilized by birds vary, perhaps more than for any other group of vertebrates. Here, we study possible adaptations in the morphology of the skeletal elements of the hind limbs to the habitat of birds. Measurements of the lengths of the femur, tibiotarsus and tarsometa
Directional swimming in the box jellyfish Tripedalia cystophora (cubozoa, cnidaria) is controlled by the shape of the velarium, which is a thin muscular sheet that forms the opening of the bell. It was unclear how different patterns of visual stimulation control directional swimming and that is the focus of this study. Jellyfish were tethered inside a small experimental tank, where the four vertic
A detailed analysis of 2 years' hourly microclimatic (mainly surface air temperature) data recently acquired from locations widely dispersed over 700 km2 in the Abisko catchment encompassing Lake Tornetrask in Swedish Lapland is presented in this study. This project is designed to explore the effects of microclimatic variability, past and future climate change (1913-2100) on regional vegetation an
The long-term advance in the timing of bird spring migration in the Northern Hemisphere is associated with global climate change. The extent to which changes in bird phenology reflect responses to weather conditions in the wintering or breeding areas, or during migration, however, remains to be elucidated. We analyse the relationships between the timing of spring migration of 9 species of trans-Sa
Leflunomide is a low molecular weight immunosuppressive drug which inhibits the enzymes dehydroorotate dehydrogenase and protein tyrosine kinase, both of which are important components in the immune response. As the mechanisms of action of leflunomide and tacrolimus are different, we postulated an additive or synergistic effect of the two drugs and investigated the effects of leflunomide alone, or
Chemical cues from piscivorous fish and prey alarm substances often cause rapid fright responses in prey. However little is known of how piscivore-related chemical cues affect prey behaviour over periods longer than a few hours. Here we have investigated how chemical cues from piscivorous northern pike, Esox lucius, affect habitat choice and diel activity of crucian carp, Carassius carassius, over
Human disturbance can be a severe problem for some animal species. Behavioural ecology theory predicts that sensitivity to mortality risks, and thereby to disturbance, will be related to life-history characteristics. Long-lived species with low reproductive rates are expected to have a high cost of predation and therefore avoid risks strongly. In this paper we quantify the effect of roads on the A
224 patients with undisplaced femoral neck fractures treated with two parallel Hansson hook pins were studied. After a mean follow-up time of 32 months (S.D. 5.2), 15% had a reoperation. 11% were considered failures, mostly avascular necrosis, and 9% had a secondary arthroplasty. Possible risk factors for poor outcome were analysed. Neither high age nor surgical delay was associated with increased
Turbulent flow and thermal field were predicted in a square-sectioned 180° bend at a Reynolds number of 56000. Suga's low-Re cubic k-ε model [5-6] and the RSM [7-8] were used. The results were compared to experimental data [1]. Identical inlet boundary conditions were used in both cases. The inlet length impact on the flow-heat transfer in the bend was investigated. The velocities are higher near
In this paper, the factors affecting flame extension under curved ceilings are presented. An experimental campaign in reduced scale was carried out in Lund University’s Fire Lab using a propane gas burner and heptane pool fire in different positions and heat release rates within a curved ceiling setup. A flame recognition script was developed to identify the flame length in the videos taken for ea
MVEN03 Ht 2020 MILJÖVETENSKAP Preliminär planering/schema 200823 Kurs: MVEN03 - Miljövetenskap: Analys och metodik, 15 hp HT 2020 Kursansvarig: Nina Reistad NR nina.reistad@fysik.lth.se Lärare: Charlotta Turner CT charlotta.turner@chem.lu.se Per Erik Isberg PEI per-erik.isberg@stat.lu.se Pål Axel Olsson PAO pal_axel.olsson@biol.lu.se Martijn van Praagh MVP martijn.van_praagh@mv.lu.se Björn Klatt B
https://www.cec.lu.se/sv/sites/cec.lu.se.sv/files/mven03_preliminar_planering_schema_ht_2020_v7.pdf - 2026-07-17
Conference abstracts Knowledge for Sustainable Development – Lund University Research Conference 2 May 2022 | Sustainability Week in Lund 2022 Content Summary of research abstracts presented during the conference. 1. Theme I: Understanding and measuring processes in sustainable development 2. Theme II: Research for sustainability and change 3. Theme III: Implementation – obstacles, challenges, and
The 21st century has developed so quickly digitally that information spreads so quickly through e-word-of-mouth. To effectively communicate, companies have to find a way to spread their own messages in a fast, unique way to entice their publics. In the fashion industry, instead of using their own websites and social media, which can be viewed as untrustworthy, many companies turn to partnerships w
Unga lagöverträdare har en särskild ställning inom straffrätten. För de per-soner som vid brottet var under 21 år tas åldern i beaktande vid straffmät-ningen och straffet lindras. Detta har sin bakgrund i de idéer om straffets uppfostrande verkan som växte fram runt slutet av 1800-talet. Även idag finns tanken att en ung människa anses vara outvecklad och sakna sådan ansvarsförmåga som vuxna normaJuvenile offenders have a special status in Swedish criminal law. Those cul-prits whose age is below the threshold of 21 years receive mitigated punish-ments because their age is taken into regard when the meting out of punish-ment is done. The reasons for this can be traced back to the end of the nine-teenth century, when the concept that a punishment may have educational effects emerged. Today,
Tin whiskers have long caused issues to electronic components and made the subject of many articles. According to NASA the oldest reports concerning whiskers date back to the 1940's. The whiskers are single-crystals growing from, for example electronic components. Despite the long history of tin whiskers the actual cause of their growth is still unknown. The hypothesis held by the author is th
Häktning och restriktioner anses vara de mest ingripande personella tvångsmedel som kan användas mot den misstänkte. Det anses nödvändigt att åklagaren under förundersökning och brottmålsprocessen kan använda sig av straffprocessuella tvångsmedel för att lösa brott. Här skapas en spänning mellan statens möjligheter till effektiv brottsutredning och den enskildes krav på att tvångsåtgärder inte tilDetention and restrictions are the most coercive measures that can affect the suspect. It is considered necessary that the prosecutor during preliminary investigation and criminal trial procedure can use coercive measures to solve crimes. Here emerges a tension between the state´s opportunities to effective criminal investigation and the individual’s requirements that coercive measures are not app
Under de senaste årtiondena har samboförhållanden i både Sverige och Norge blivit en allt mer vanlig och allt mer socialt accepterad samlevnadsform. Trots relativt likartade samhällsförhållanden har dock lagstiftaren i respektive land utformat sambors rättsliga efterlevandeskydd på olika sätt. Den här uppsatsens syfte är att, ur ett rättsutvecklingsperspektiv, studera och jämföra efterlevande-skydDuring the past few decades, unmarried cohabitation has become an in-creasingly common and increasingly socially acceptable form of cohabitation in both Sweden and Norway. While social conditions are similar in both countries, Norwegian and Swedish legislators have introduced differently the legal rights of cohabitation when death occurs in the relationship. The intent of this investigation is to
Den demografiska utvecklingen i världen innebär en stor ekonomisk press på välfärdsstaterna. Andelen äldre i befolkningen har ökat vilket leder till att försörjningsbördan på de arbetstagare som är i arbetsför ålder också ökar. För att kunna lösa problemen med en åldrande befolkning behöver pensionsåldern höjas. I januari 2020 infördes därför 68-årsregeln i LAS i syfte att höja pensionsåldern i SvDemographic developments are putting a great deal of economic pressure on welfare states. The proportion of older people in the population increases which leads to an increase in the dependency ratio. In order to solve the problems of an aging population, the retirement age needs to be raised. In January 2020, the “68-year rule” was introduced in the Swedish Employment Protection Act. The aim of t
