| 1. |
|
|
| 2. |
|
|
| 3. |
- Agic, Heda, et al.
(författare)
-
Late Ediacaran occurrences of the organic-walled microfossils Granomarginata and flask-shaped Lagoenaforma collaris gen. et sp. nov.
- 2022
-
Ingår i: Geological Magazine. - : Cambridge University Press. - 0016-7568 .- 1469-5081. ; 159:7, s. 1071-1092
-
Tidskriftsartikel (refereegranskat)abstract
- New occurrences of flask-shaped and envelope-bearing microfossils, including the predominantly Cambrian taxon Granomarginata, are reported from new localities, as well as from earlier in time (Ediacaran) than previously known. The stratigraphic range of Granomarginata extends into the Cambrian System, where it had a cosmopolitan distribution. This newly reported Ediacaran record includes areas from Norway (Baltica), Newfoundland (Avalonia) and Namibia (adjacent to the Kalahari Craton), and puts the oldest global occurrence of Granomarginata in the Indreelva Member (< 563 Ma) of the Stahpogieddi Formation on the Digermulen Peninsula, Arctic Norway. Although Granomarginata is rare within the assemblage, these new occurrences together with previously reported occurrences from India and Poland, suggest a potentially widespread palaeogeographic distribution of Granomarginata through the middle-late Ediacaran interval. A new flask-shaped microfossil Lagoenaforma collaris gen. et sp. nov. is also reported in horizons containing Granomarginata from the Stahpogieddi Formation in Norway and the Dabis Formation in Namibia, and flask-shaped fossils are also found in the Gibbett Hill Formation in Newfoundland. The Granomarginata-Lagoenaforma association, in addition to a low-diversity organic-walled microfossil assemblage, occurs in the strata postdating the Shuram carbon isotope excursion, and may eventually be of use in terminal Ediacaran biostratigraphy. These older occurrences of Granomarginata add to a growing record of body fossil taxa spanning the Ediacaran-Cambrian boundary.
|
|
| 4. |
- Bårdsgjerde, Elise Kvalsund, et al.
(författare)
-
Physicians’ perceptions of patient participation in the myocardial infarction pathway
- 2021
-
Ingår i: Communication & Medicine. - : Equinox Publishing. - 1612-1783 .- 1613-3625. ; 18:2, s. 111-125
-
Tidskriftsartikel (refereegranskat)abstract
- Myocardial infarction is an acute, frightening and life-threatening condition for patients who are affected. They need plain and simple information about the disease and the treatment, yet patient participation might be challenging in acute situations. Previous studies have shown that patient participation leads to improved patient satisfaction, cooperation with healthcare professionals and better management of the disease. Physicians have a key role in facilitating patient participation in the healthcare services. This study explores physicians’ perceptions of patient participation in the myocardial infarction pathway. In 2018 we interviewed nine experienced physicians in Norway working in different phases of the pathway. Hermeneutics was chosen as the underpinning analytical framework. Four themes illustrated patient participation in the myocardial infarction pathway. Paternalism characterised the acute phase. During hospitalisation the physicians perceived a lack of continuity in physician–patient communication. In the discharge phase, the physicians focused on strengthening health literacy. In the rehabilitation phase, dialogue and shared decision making was central to achieving treatment adherence. We found variations in the level of patient participation along the different phases of the myocardial infarction pathway. Strengthening continuity to ensure patient participation and collaboration between healthcare professionals is essential. The physicians proposed introducing checklists for patient information to enhance interprofessional collaboration and strengthen patient participation.
|
|
| 5. |
- Clasen, Joanna L., et al.
(författare)
-
A comparison of complementary measures of vitamin B6 status, function, and metabolism in the European Prospective Investigation into Cancer and Nutrition (EPIC) study
- 2021
-
Ingår i: American Journal of Clinical Nutrition. - : Oxford University Press. - 0002-9165 .- 1938-3207. ; 114:1, s. 338-347
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Vitamin B6 insufficiency has been linked to increased risk of cancer and other chronic diseases. The circulating concentration of pyridoxal 5'-phosphate (PLP) is a commonly used measure of vitamin B6 status. Ratios of substrates indicating PLP coenzymatic function and metabolism may be useful complementary measures to further explore the role of vitamin B6 in health.OBJECTIVES: We explored the sensitivity of 5 outcomes, namely PLP concentration, homocysteine:cysteine (Hcy:Cys), cystathionine:cysteine (Cysta:Cys), the 3´-hydroxykynurenine ratio (HKr), and the 4-pyridoxic acid ratio (PAr) to vitamin B6 intake as well as personal and lifestyle characteristics.MEDTHODS: Dietary intake and biomarker data were collected from participants from 3 nested case-control studies within the European Prospective Investigation into Cancer and Nutrition (EPIC). Bayesian regression models assessed the associations of the 5 biomarker outcomes with vitamin B6 intake and personal and lifestyle covariates. Analogous models examined the relations of Hcy:Cys, Cysta:Cys, and HKr with PLP.RESULTS: In total, 4608 participants were included in the analyses. Vitamin B6 intake was most strongly associated with PLP, moderately associated with Hcy:Cys, Cysta:Cys, and HKr, and not associated with PAr (fold change in marker given a doubling of vitamin B6 intake: PLP 1.60 [95% credible interval (CrI): 1.50, 1.71]; Hcy:Cys 0.87 [95% CrI: 0.84, 0.90]; Cysta:Cys 0.89 [95% CrI: 0.84, 0.94]; HKr 0.88 [95% CrI: 0.85, 0.91]; PAr 1.00 [95% CrI: 0.95, 1.05]). PAr was most sensitive to age, and HKr was least sensitive to BMI and alcohol intake. Sex and menopause status were strongly associated with all 5 markers.CONCLUSIONS: We found that 5 different markers, capturing different aspects of vitamin B6-related biological processes, varied in their associations with vitamin B6 intake and personal and lifestyle predictors.
|
|
| 6. |
- Kvalslund Bårdsgjerde, Elise, et al.
(författare)
-
Nurses' perceptions of patient participation in the myocardial infarction pathway
- 2020
-
Ingår i: Nursing Open. - : Wiley. - 2054-1058. ; 7:5, s. 1606-1615
-
Tidskriftsartikel (refereegranskat)abstract
- Aim: To explore nurses' perceptions of patient participation in different phases of the myocardial infarction pathway. Design: Qualitative design with a hermeneutical approach. Methods: Five focus groups were conducted at two hospitals, one with and one without percutaneous coronary intervention facilities, between February–November 2018. Participants were recruited through purposive sampling. Twenty-two nurses experienced in cardiac care participated. The analysis had a hermeneutical approach. Results: The findings revealed nurses' perceptions of patient participation in different phases of the myocardial infarction pathway. Four themes were identified: (a) variation between paternalism and autonomy in the acute phase; (b) individualization of dialogue and patient participation during treatment; (c) lack of coherence in the pathway hinders patient participation at discharge; and (d) cardiac rehabilitation promotes patients' autonomous decisions in lifestyle changes.
|
|
| 7. |
- Luizzi, Victoria J., et al.
(författare)
-
Phenotypic plasticity in floral scent in response to nutrient, but not water, availability in the perennial plant Arabis alpina
- 2021
-
Ingår i: Functional Ecology. - : Wiley. - 0269-8463 .- 1365-2435. ; 35:8, s. 1655-1665
-
Tidskriftsartikel (refereegranskat)abstract
- Floral scent is an important mediator of plant–pollinator interactions. Multiple recent studies report ample intraspecific scent variation among populations and individuals. Yet, few studies have eastimated effects of phenotypic plasticity on floral scent in response to differing environmental factors. In this study, we investigated the effects of nutrient and water availability on floral scent in self-compatible and self-incompatible populations of the perennial herb Arabis alpina. We subjected greenhouse grown plants to different nutrient and water treatments in a crossed design, examined the effects on floral scent emission rate and composition, compared the level of plasticity to that of other plant traits, and conducted hand-pollinations of nutrient-limited individuals to test for a potential allocation cost of scent production. For both self-compatible and self-incompatible populations, the per-flower scent emission rate was 1.2–4 times higher when nutrients were abundant, but this effect explained little variation in scent emission rate and was limited compared to plasticity in flower number. There was no effect of water treatment on scent emission. Additionally, neither treatment had an effect on the composition of the floral scent, and there was no detectable trade-off between scent and seed production that would imply a cost of floral scent production. Overall, while per-flower floral scent emission displayed limited phenotypic plasticity in response to nutrient conditions, the total amount of scent emitted by plants may increase more strongly at higher nutrient availabilities due to an increase in flower production. Therefore, our results suggest that fitness benefits due to increased scent emission rates under favourable nutrient conditions might depend on the extent to which floral scent serves as a long- or short-distance pollinator attractant for the focal plant species. A free Plain Language Summary can be found within the Supporting Information of this article.
|
|
| 8. |
|
|
| 9. |
- Morrison, Catriona A., et al.
(författare)
-
Covariation in population trends and demography reveals targets for conservation action
- 2021
-
Ingår i: Royal Society of London. Proceedings B. Biological Sciences. - : The Royal Society. - 1471-2954. ; 288:1946, s. 20202955-20202955
-
Tidskriftsartikel (refereegranskat)abstract
- Wildlife conservation policies directed at common and widespread, but declining, species are difficult to design and implement effectively, as multiple environmental changes are likely to contribute to population declines. Conservation actions ultimately aim to influence demographic rates, but targeting actions towards feasible improvements in these is challenging in widespread species with ranges that encompass a wide range of environmental conditions. Across Europe, sharp declines in the abundance of migratory landbirds have driven international calls for action, but actions that could feasibly contribute to population recovery have yet to be identified. Targeted actions to improve conditions on poor-quality sites could be an effective approach, but only if local conditions consistently influence local demography and hence population trends. Using long-term measures of abundance and demography of breeding birds at survey sites across Europe, we show that co-occurring species with differing migration behaviours have similar directions of local population trends and magnitudes of productivity, but not survival rates. Targeted actions to boost local productivity within Europe, alongside large-scale (non-targeted) environmental protection across non-breeding ranges, could therefore help address the urgent need to halt migrant landbird declines. Such demographic routes to recovery are likely to be increasingly needed to address global wildlife declines.
|
|
| 10. |
- Nilsson, Kalle J., et al.
(författare)
-
Non-parallel morphological divergence following colonization of a new host plant
- 2022
-
Ingår i: Evolutionary Ecology. - : Springer Science and Business Media LLC. - 0269-7653 .- 1573-8477. ; 36:5, s. 859-877
-
Tidskriftsartikel (refereegranskat)abstract
- Adaptation to new ecological niches is known to spur population diversification and may lead to speciation if gene flow is ceased. While adaptation to the same ecological niche is expected to be parallel, it is more difficult to predict whether selection against maladaptive hybridization in secondary sympatry results in parallel divergence also in traits that are not directly related to the ecological niches. Such parallelisms in response to selection for reproductive isolation can be identified through estimating parallelism in reproductive character displacement across different zones of secondary contact. Here, we use a host shift in the phytophagous peacock fly Tephritis conura, with both host races represented in two geographically separate areas East and West of the Baltic Sea to investigate convergence in morphological adaptations. We asked (i) if there are consistent morphological adaptations to a host plant shift and (ii) if the response to secondary sympatry with the alternate host race is parallel across contact zones. We found surprisingly low and variable, albeit significant, divergence between host races. Only one trait, the length of the female ovipositor, which serves an important function in the interaction with the hosts, was consistently different between host races. Instead, co-existence with the other host race significantly affected the degree of morphological divergence, but the divergence was largely driven by different traits in different contact zones. Thus, local stochastic fixation or reinforcement could generate trait divergence, and additional evidence is needed to conclude whether divergence is locally adaptive.
|
|
