Animal welfare issues in capture-based aquaculture

Capture-based aquaculture (CBA) represents a type of intensive aquaculture production system for some economically valuable fish species, such as bluefin tuna (Thunnus thynnus), eel (Anguilla spp.) and Atlantic cod (Gadus morhua). In CBA, fish are captured from the wild in certain periods of the year, and following a recovery phase, they are kept in rearing facilities for a period of time, until they reach the market size. In this case, the fish are wild and have not gone through domestication like other fish species that are reproduced and farmed under the established farming systems. Therefore, these fish are not genetically adapted to live under the intensive farming conditions, and thus their welfare may be compromised in different manners compared to their domesticated counterparts. This review presents an overview of the current situation of CBA, while focusing on the assessment of fish welfare in CBA. The most commonly used fish welfare indicators will be discussed in relation to the different stages of CBA.publishedVersio

DC grids for integration of large scale wind power

It is widely recognized that the future wind power development in the Nordic region will be to a large extent be offshore. The most promising technology for that is the voltage source converter (VSC) HVDC. A review of the most important options and state-of-the-art related to transients in HVDC systems, converters, grid topologies, control strategies and wind power clustering are presented in this paper

Teaching through television: Experimental evidence on entrepreneurship education in Tanzania

Can television be used to teach and foster entrepreneurship among youth in developing countries? We report from a randomized control field experiment of an edutainment show on entrepreneurship broadcasted over almost three months on national television in Tanzania. The field experiment involved more than 2,000 secondary school students, where the treatment group was incentivized to watch the edutainment show. We find some suggestive evidence of the edutainment show making the viewers more interested in entrepreneurship and business, particularly among females. However, our main finding is a negative effect: the edutainment show discouraged investment in schooling without convincingly replacing it with some other valuable activity. Administrative data show a strong negative treatment effect on school performance, and long-term survey data show that fewer treated students continue schooling, but we do not find much evidence of the edutainment show causing an increase in business ownership. The fact that an edutainment show for entrepreneurship caused the students to invest less in education carries a general lesson to the field experimental literature by showing the importance of taking a broad view of possible implications of a field intervention.publishedVersio

Predictors of long time survival after lung cancer surgery. A retrospective cohort study.

Background: There have been few reports regarding long time survival after lung cancer surgery. The influence of age and pulmonary function on long time survival is still not fully discovered. Some reports suggest that hospitals with a high surgical volume have better results. The aim of this study was to evaluate lung cancer surgery performed in a county hospital in terms of 30 days mortality, complications and predictors of long time survival. Methods: All patients operated with non-small cell lung cancer in the period 1993–2006 were reviewed, and 148 patients were included in the study. 30 days mortality and complications were analyzed by univariate analysis. Kaplan Meier plots were performed to display some of the univariate variables. Cox regression analysis was performed to find Hazard Ratios (HR) that predicted long time survival in univariate and multivariate analysis. Results: The overall 30 days mortality rate was 2.7%, whereas 36.3% had one or more complications after surgery. The median survival time was 3.4 years. In multivariate Cox regression analysis advanced preoperative stage predicted reduced long time survival with HR (95%CI) 1.63 (0.92, 2.89) and 4.16 (1.92, 9.05) for patients in stage IB and II-IV respectively, when compared to patients in stage IA. Age ≥ 70 years and FEV1<80% predicted reduced long time survival with HR (95%CI) 2.23 (1.41, 3.54) and 1.93 (1.14, 3.28) respectively, compared to age<70 years and FEV1 ≥ 80%. Conclusion: Thirty days mortality and complication rate showed that lung cancer surgery can be performed safely in a county hospital with experienced thoracic surgeons. Early preoperative stage, age below 70 years and normal pulmonary function predicted long time survival.publishedVersio

Nutrient digestibility, growth, mucosal barrier status, and activity of leucocytes from head kidney of Atlantic salmon fed marine- or plant-derived protein and lipid sources

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Quality of clinical management of cardiometabolic risk factors in patients with severe mental illness in a specialist mental health care setting

Purpose Cardiometabolic disease in patients with severe mental illness is a major cause of shortened life expectancy. There is sparse evidence of real-world clinical risk prevention practice. We investigated levels of assessments of cardiometabolic risk factors and risk management interventions in patients with severe mental illness in the Norwegian mental health service according to an acknowledged international standard. Methods We collected data from 264 patients residing in six country-wide health trusts for: (a) assessments of cardiometabolic risk and (b) assessments of levels of risk reducing interventions. Logistic regressions were employed to investigate associations between risk and interventions. Results Complete assessments of all cardiometabolic risk variables were performed in 50% of the participants and 88% thereof had risk levels requiring intervention according to the standard. Smoking cessation advice was provided to 45% of daily smokers and 4% were referred to an intervention program. Obesity was identified in 62% and was associated with lifestyle interventions. Reassessment of psychotropic medication was done in 28% of the obese patients. Women with obesity were less likely to receive dietary advice, and use of clozapine or olanzapine reduced the chances for patients with obesity of getting weight reducing interventions. Conclusions Nearly nine out of the ten participants were identified as being at cardiometabolic high risk and only half of the participants were adequately screened. Women with obesity and patients using antipsychotics with higher levels of cardiometabolic side effects had fewer adequate interventions. The findings underscore the need for standardized recommendations for identification and provision of cardiometabolic risk reducing interventions in all patients with severe mental illness.publishedVersio

Increased circulating IL-18 levels in severe mental disorders indicate systemic inflammasome activation

Background Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental illnesses (SMI) that are part of a psychosis continuum, and dysregulated innate immune responses have been suggested to be involved in their pathophysiology. However, disease-specific immune mechanisms in SMI are not known yet. Recently, dyslipidemia has been linked to systemic inflammasome activation, and elevated atherogenic lipid ratios have been shown to correlate with circulating levels of inflammatory biomarkers in SMI. It is, however, not yet known if increased systemic cholesterol load leads to inflammasome activation in these patients. Methods We tested the hypothesis that patients with SCZ and BD display higher circulating levels compared to healthy individuals of key members of the IL-18 system using a large patient cohort (n = 1632; including 737 SCZ and 895 BD), and healthy controls (CTRL; n = 1070). In addition, we assessed associations with coronary artery disease risk factors in SMI, focusing on relevant inflammasome-related, neuroendocrine, and lipid markers. Results We report higher baseline levels of circulating IL-18 system components (IL-18, IL-18BPA, IL-18R1), and increased expression of inflammasome-related genes (NLRP3 and NLRC4) in the blood of patients relative to CTRL. We demonstrate a cholesterol dyslipidemia pattern in psychotic disorders, and report correlations between levels of blood cholesterol types and the expression of inflammasome system elements in SMI. Conclusions Based on these results, we suggest a role for inflammasome activation/dysregulation in SMI. Our findings further the understanding of possible underlying inflammatory mechanisms and may expose important therapeutic targets in SMI.publishedVersio

Lærermotstand i Norge under andre verdenskrig

Denne oppgaven tar for seg motstanden norske lærere utførte mot den nye skolepolitikken som Nasjonal Samling la ut for dem etter partiet fikk politisk makt 25. september 1940 som følge av den tyske okkupasjonen under andre verdenskrig. Det blir trukket frem måten de gjorde motstand, hvilke nyordninger de ble pålagt, handlingene til enkelte maktpersoner og straffen mange lærere fikk for det de gjorde. Hovedfokuset ligger på kampen mot NS-organisasjonen Norges Lærersamband, den forsøkte implementeringen av tvungen ungdomstjeneste gjennom Nasjonal Samlings Ungdomsfylking og de lærerne som ble arrestert og sendt til Kirkenes for å utføre straffearbeid. Oppgaven tar kun for seg lærernes motstand og sammenligner den ikke med motstand blant andre grupper. Avslutningsvis blir betydningen av lærermotstanden vurdert, og hvilken påvirkning den hadde