| 11. |
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| 13. |
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| 14. |
- Ahlberg, Erik, et al.
(author)
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"Vi klimatforskare stödjer Greta och skolungdomarna"
- 2019
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In: Dagens nyheter (DN debatt). - 1101-2447.
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Journal article (pop. science, debate, etc.)abstract
- DN DEBATT 15/3. Sedan industrialiseringens början har vi använt omkring fyra femtedelar av den mängd fossilt kol som får förbrännas för att vi ska klara Parisavtalet. Vi har bara en femtedel kvar och det är bråttom att kraftigt reducera utsläppen. Det har Greta Thunberg och de strejkande ungdomarna förstått. Därför stödjer vi deras krav, skriver 270 klimatforskare.
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| 15. |
- Ahlgren, Benjamin, et al.
(author)
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A simplified model for linear correlation between annual yield and DNI for parabolic trough collectors
- 2018
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In: Energy Conversion and Management. - : Elsevier. - 0196-8904 .- 1879-2227. ; 174, s. 295-308
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Journal article (peer-reviewed)abstract
- This paper proposes a simple method for estimating annual thermal performance of parabolic trough collectors (PTCs) based on a linear relation with annual DNI for a certain latitude. A case study with simulations for a novel concentrating solar collector in 316 locations for three operating temperature scenarios worldwide was carried out and showed promising results for the latitudes and continents investigated. For a certain latitude and mean operating temperature, the annual yield of a PTC was found to be linearly proportional to yearly DNI. The proposed method will serve as a simplified alternative to the steady-state and quasi-dynamic methods already used. Estimating performance based on yearly DNI can be used by design engineers to do quick preliminary planning of solar plants. Customers can also use this method to evaluate existing solar collector installations. A TRNSYS/TRNSED tool that uses a steady-state model has been developed to carry out the simulations and it has been validated against a PTC array at Technical University of Denmark (DTU). The results show that the simplified method can give reliable estimates of long-term performance of parabolic trough collectors.
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| 16. |
- Ahlm, Emma, 1982-
(author)
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EU Law and Religion : A Study of How the Court of Justice has Adjudicated on Religious Matters in Union Law
- 2020
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Doctoral thesis (other academic/artistic)abstract
- This study has caught a legal development in the making. The Court of Justice has, over the last ten years, developed a body of case law relating to religious matters in connection to EU law which spans a wide range of subject areas; non-discrimination law, data protection, state aid, animal welfare and slaughter rules. Historically, religion in Europe had strong ties to the nation state. The European Court of Human Rights has, in its interpretation of Article 9 ECHR, upheld European supervision of religious freedom in the contracting states. However, due to the lack of European consensus concerning the relationship between state and religion, the Court of Human Rights has left a wide margin of appreciation to the state. The question this study answers is whether the Court of Justice has left a similar margin of discretion to the Member States in its adjudication on religious matters.By analysing the development over the last ten years, one can discern an EU law on religion which is independent from the Court of Human Rights, and from the Member States. An "EU law on Religion" includes the general principle of religious equality – in Article 21 CFR – and religious freedom – in Article 10 CFR, applied in a uniform way, but also limits of the secular jurisdiction of the Court of Justice and the neutrality of the Union. Although the Union has limited competence in legislating on religious matters in the Member States, it does not hinder Union law from impacting the Member States, since they must organize their relationship to religious matters in conformity with Union law. Article 17(1) TFEU states that the Union shall respect the status of churches and religious organizations under national law, but this article has not been interpreted by the Court of Justice as safeguarding the traditions of the Member States. In contrast, this study advances an understanding of Union law greatly relevant to religion in the Member States.
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| 17. |
- Ahlsson, Anders, et al.
(author)
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Is There a Weekend Effect in Surgery for Type A Dissection? : Results From the Nordic Consortium for Acute Type A Aortic Dissection Database
- 2019
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In: Annals of Thoracic Surgery. - : Elsevier. - 0003-4975 .- 1552-6259. ; 108:3, s. 770-776
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Journal article (peer-reviewed)abstract
- Background: Aortic dissection type A requires immediate surgery. In general surgery populations, patients operated on during weekends have higher mortality rates compared with patients whose operations occur on weekdays. The weekend effect in aortic dissection type A has not been studied in detail.Methods: The Nordic Consortium for Acute Type A Aortic Dissection (NORCAAD) registry includes data for 1,159 patients who underwent type A dissection surgery at 8 Nordic centers during 2005 to 2014. This study is based on data relating to surgery conducted during weekdays versus weekends and starting between 8:00 AM and 8:00 Pm ("daytime") versus from 8:00 Pm to 8:00 AM ("nighttime"), as well as time from symptoms, admittance, and diagnosis to surgery. The influence of timing of surgery on the 30-day mortality rate was assessed using logistic regression analysis.Results: The 30-day mortality was 18% (204 of 1,159), with no difference in mortality between surgery performed on weekdays (17% [150 of 889]) and on weekends (20% [54 of 270], p = 0.45), or during nighttime (19% [87 of 467]) versus daytime (17% [117 of 680], p = 0.54). Time from symptoms to surgery (median 7.0 hours vs 6.5 hours, p = 0.31) did not differ between patients who survived and those who died at 30 days. Multivariable regression analysis of risk factors for 30-day mortality showed no weekend effect (odds ratio, 1.04; 95% confidence interval, 60.67 to 1.60; p = 0.875), but nighttime surgery was a risk factor (odds ratio, 2.43; 95% confidence interval, 1.29 to 4.56; p = 0.006).Conclusions: The 30-day mortality in surgical repair of aortic dissection type A was not significantly affected by timing of surgery during weekends versus weekdays. Nighttime surgery seems to predict increased 30-day mortality, after correction for other risk factors.
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| 18. |
- Ahlsson, Anders, et al.
(author)
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Is there a weekend effect in surgery for type A dissection? - Results from the NORCAAD database
- 2019
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In: Annals of Thoracic Surgery. - : Elsevier BV. - 1552-6259 .- 0003-4975. ; 108:3, s. 770-776
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Journal article (peer-reviewed)abstract
- BACKGROUND: Aortic dissection type A requires immediate surgery. In general surgery populations, patients operated during weekends have higher mortality rates compared to patients operated on weekdays. The weekend effect in aortic dissection type A has not been studied in detail.METHODS: The Nordic Consortium for Acute Type A Aortic Dissection (NORCAAD) registry includes patients (N=1,159) who underwent type A dissection surgery at eight Nordic centers during 2005-2014. This study is based on data relating to surgery conducted during weekdays vs. weekends, and starting between 8 am and 8 pm ("daytime") vs. from 8 pm to 8 am ("nighttime"), as well as time from symptoms/admittance/diagnosis to surgery. The influence of timing of surgery on 30-day mortality was assessed using logistic regression analysis.RESULTS: The 30-day mortality was 18% (204/1,159), with no difference in mortality between surgery performed on weekdays (17%, 150/889) and on weekends (20%, 54/270, p=0.45), or during nighttime (19%, 87/467) vs. daytime (17%, 117/680, p=0.54). Time from symptoms to surgery (median 7.0 hours vs. 6.5 hours, p=0.31) did not differ between patients who survived and those dead at 30 days. Multivariable regression analysis of risk factors for 30-day mortality showed no weekend effect (OR 1.04 [0.67-1.60], p=0.875), but nighttime surgery was a risk factor (OR 2.43 [1.29-4.56], p=0.006).CONCLUSIONS: Thirty-day mortality in surgical repair of aortic dissection type A was not significantly affected by timing of surgery during weekends vs. weekdays. Nighttime surgery seems to predict increased 30-day mortality, after correction for other risk factors.
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| 19. |
- Almqvist, Catarina, et al.
(author)
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Association between parental age and asthma in a population-based register study
- 2015
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In: Journal of Allergy and Clinical Immunology. - Stockholm : Karolinska Institutet, Dept of Medical Epidemiology and Biostatistics. - 0091-6749 .- 1097-6825.
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Journal article (peer-reviewed)abstract
- In a nationwide population-based study with family design, we found an association between decreasing parental age and asthma in early childhood. The effect was independent of familial and potentially confounding factors.
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