| 1. |
- Sumaila, U. Rashid, et al.
(författare)
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WTO must ban harmful fisheries subsidies
- 2021
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Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 374:6567, s. 544-544
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 2. |
- Eriksson, Leif, 1971-, et al.
(författare)
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Secular trend, seasonality and effects of a community-based intervention on neonatal mortality : follow-up of a cluster-randomised trial in Quang Ninh province, Vietnam
- 2018
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Ingår i: Journal of Epidemiology and Community Health. - : BMJ. - 0143-005X .- 1470-2738. ; 72:9, s. 776-782
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Tidskriftsartikel (refereegranskat)abstract
- Background: Little is know about whether the effects of community engagement interventions for child survival in low-income and middle-income settings are sustained. Seasonal variation and secular trend may blur the data. Neonatal mortality was reduced in a cluster-randomised trial in Vietnam where laywomen facilitated groups composed of local stakeholders employing a problem-solving approach for 3 years. In this analysis, we aim at disentangling the secular trend, the seasonal variation and the effect of the intervention on neonatal mortality during and after the trial.Methods: In Quang Ninh province, 44 communes were allocated to intervention and 46 to control. Births and neonatal deaths were assessed in a baseline survey in 2005, monitored during the trial in 2008–2011 and followed up by a survey in 2014. Time series analyses were performed on monthly neonatal mortality data.Results: There were 30 187 live births and 480 neonatal deaths. The intervention reduced the neonatal mortality from 19.1 to 11.6 per 1000 live births. The reduction was sustained 3 years after the trial. The control areas reached a similar level at the time of follow-up. Time series decomposition analysis revealed a downward trend in the intervention areas during the trial that was not found in the control areas. Neonatal mortality peaked in the hot and wet summers.Conclusions: A community engagement intervention resulted in a lower neonatal mortality rate that was sustained but not further reduced after the end of the trial. When decomposing time series of neonatal mortality, a clear downward trend was demonstrated in intervention but not in control areas.Trial registration number: ISRCTN44599712, Post-results.
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| 3. |
- Thu Thao, Bui T., et al.
(författare)
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Enhancement of selective monoaromatic hydrocarbon and syngas products from fast pyrolysis of cassava stalks over Co, Mo promoted Ni catalysts
- 2024
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Ingår i: Journal of the Energy Institute. - 1743-9671. ; 115
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Tidskriftsartikel (refereegranskat)abstract
- Catalytic fast pyrolysis of cassava stalks has been intriguing as a promising, feasible chemical refinery method in terms of waste-to-energy conversion from cassava cultivation. This study aims to determine the synergetic influence of Mo and Co on Ni catalysts (Ni, Ni–Mo, and Ni–Co) prepared via ultrasonic-assisted incipient wetness impregnation method for catalytic pyrolysis vapor upgrading. The results indicated that Co and Mo enhance the reducibility of NiO and promote weak-to-medium acidity, thereby enhancing Ni's performance. Mono-Ni favors cracking deoxygenation, whereas oxophilicity promoters particularly enhance the oxygen absorbability efficiency to selective deoxygenated production. A fine Ni dispersion on CoNi/SiO2 catalyst was observed to positively affect the production of monoaromatic hydrocarbons (46.10 %), in contrast to those without promoters (21.63 %). This is attributed to an optimal Ni-metallic distribution with a small crystal size of 7.01 nm and a high surface area of 342.6 m2 g−1, highlighting the effectiveness of the promoter-assisted Ni catalyst. Additionally, a high yield of H2 (66.9 %) in non-condensable gas was recorded at 550 °C. The study suggests that a simplified approach to developing Ni-based catalysts could enhance the eco-friendliness of commercial catalysts, thereby facilitating the scale-up of biomass pyrolysis applications.
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| 4. |
- Lyon, Helen N., et al.
(författare)
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The association of a SNP upstream of INSIG2 with body mass index is reproduced in several but not all cohorts
- 2007
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Ingår i: PLoS Genetics. - : Public Library of Science (PLoS). - 1553-7404. ; 3:4
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Tidskriftsartikel (refereegranskat)abstract
- A SNP upstream of the INSIG2 gene, rs7566605, was recently found to be associated with obesity as measured by body mass index (BMI) by Herbert and colleagues. The association between increased BMI and homozygosity for the minor allele was first observed in data from a genome-wide association scan of 86,604 SNPs in 923 related individuals from the Framingham Heart Study offspring cohort. The association was reproduced in four additional cohorts, but was not seen in a fifth cohort. To further assess the general reproducibility of this association, we genotyped rs7566605 in nine large cohorts from eight populations across multiple ethnicities (total n = 16,969). We tested this variant for association with BMI in each sample under a recessive model using family-based, population-based, and case-control designs. We observed a significant (p < 0.05) association in five cohorts but saw no association in three other cohorts. There was variability in the strength of association evidence across examination cycles in longitudinal data from unrelated individuals in the Framingham Heart Study Offspring cohort. A combined analysis revealed significant independent validation of this association in both unrelated (p = 0.046) and family-based (p = 0.004) samples. The estimated risk conferred by this allele is small, and could easily be masked by small sample size, population stratification, or other confounders. These validation studies suggest that the original association is less likely to be spurious, but the failure to observe an association in every data set suggests that the effect of SNP rs7566605 on BMI may be heterogeneous across population samples.
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| 5. |
- Nguyen Thuy, Lan, 1975-, et al.
(författare)
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Influence of redox cycle on the mobilisation of Fe, Zn, Cu and Cd from contaminated sediments : a laboratory study
- 2007
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Ingår i: Water Rescources Managment. - Boston : WITPRESS. ; , s. 283-291
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- An international forum for original contributions and the exchange of knowledge and experience on the management of water resourcesPublishes contributions on water resources assessment, development, conservation and control, emphasizing policies and strategiesSupported scientifically by the European Water Resources AssociationWater Resources Management is an international, multidisciplinary forum for the publication of original contributions and the exchange of knowledge and experience on the management of water resources. In particular, the journal publishes contributions on water resources assessment, development, conservation and control, emphasizing policies and strategies. Contributions examine planning and design of water resource systems, and operation, maintenance and administration of water resource systems.Coverage extends to these closely related topics: water demand and consumption; applied surface and groundwater hydrology; water management techniques; simulation and modelling of water resource systems; forecasting and control of quantity and quality of water; economic and social aspects of water use; legislation and water resources protection. Water Resources Management is supported scientifically by the European Water Resources Association, a scientific and technical nonprofit-making European association
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| 6. |
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| 7. |
- Nguyen Thuy, Lan, et al.
(författare)
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Release of metals from contaminated sediments under simulated redox changes induced by hydropower operations
- 2007
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Ingår i: International Journal of Sustainable Development and Planning. ; 4:1
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Tidskriftsartikel (refereegranskat)abstract
- This study aimed to examine the consequent release of the metals Fe, Zn, Cu and Cd from the sediments under simulated redox changes. Two contaminated sediments, ‘A’ representing the top layer and ‘B’ representing the deeper layers taken from Lake Håcklasjön downstream of a hydropower plant in southern Sweden, were incubated in the lake water in flow-cells under both anoxic and aerated conditions. Under anoxic conditions, Fe was rapidly released from both sediments (A and B) into the solution, which was likely a result of diffusion from porewater along with the reductive dissolution of hydroxides, whereas the concentrations of dissolved Zn, Cu and Cd remained low. The opposite results occurred for all the studied metals during aeration: i.e. precipitation of Fe and a progressive release of Zn, Cu and Cd. The oxidation of ferrous to ferric Fe was the most likely process responsible for the removal of Fe from the water column from both sediments. Meanwhile the release of the trace metals was probably a result of the oxidation of sulphides, degradation of particulate organic matter or diffusion/advection. The water flow applied during the aeration period likely induced resuspension, which would be a contributing factor to the metal release by enhancing both porewater diffusion/advection and interactions between the resuspended sediments and the overlying water. The decrease in pH in overlying water of sediment A could be the reason for the faster increase in trace metal concentrations compared to that of sediment B. Copper was probably not affected by pH change, as Cu was complexed with dissolved organic carbon and carbonates using the Visual MINTEQ model. The results from the experiment show that aeration of the sediment samples is an important factor for the release of Zn, Cu and Cd into the water column. The low flow of water applied in the experiment compared to that generated by operation periods of the hydropower plant suggests that probably more metals will be released under field conditions.
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