1. |
|
|
2. |
- Calnan, Sonya, et al.
(author)
-
Development of Various Photovoltaic‐Driven Water Electrolysis Technologies for Green Solar Hydrogen Generation
- 2021
-
In: Solar RRL. - : John Wiley & Sons. - 2367-198X. ; 6:5
-
Journal article (peer-reviewed)abstract
- Direct solar hydrogen generation via a combination of photovoltaics (PV) and water electrolysis can potentially ensure a sustainable energy supply while minimizing greenhouse emissions. The PECSYS project aims at demonstrating asolar-driven electrochemical hydrogen generation system with an area >10 m2 with high efficiency and at reasonable cost. Thermally integrated PV electrolyzers(ECs) using thin-film silicon, undoped, and silver-doped Cu(In,Ga)Se2 and silicon heterojunction PV combined with alkaline electrolysis to form one unit are developed on a prototype level with solar collection areas in the range from 64 to2600 cm2 with the solar-to-hydrogen (StH) efficiency ranging from 4 to 13%. Electrical direct coupling of PV modules to a proton exchange membrane EC test the effects of bifacially (730 cm2 solar collection area) and to study the long-term operation under outdoor conditions (10 m2 collection area) is also investigated. In both cases, StH efficiencies exceeding 10% can be maintained over the test periods used. All the StH efficiencies reported are based on measured gas outflow using mass flow meters.
|
|
3. |
|
|
4. |
|
|
5. |
- Dahlberg, Stefan, 1975, et al.
(author)
-
Förtida röstning i Sverige
- 2008
-
Book (other academic/artistic)abstract
- Inför valet 2006 uppdrog regeringen åt Göteborgs universitet att utvärdera förtidsreformens effekter på väljarnas röstbenägenhet. Bakgrunden är den relativt etablerade uppfattningen att generösa förtida röstningssystem har en positiv effekt på valdeltagande. Kommunernas övertagande av den förtida röstningen efter Posten AB förväntades leda till en nystart för den förtida röstningen i Sverige framför allt genom en ökad tillgänglighet för väljarna till förtida röstmottagningslokaler. Men hur blev det egentligen? Ökade antalet ställen där väljarna kunde rösta i förtid? Går det att finna några vetenskapliga belägg för att den förändrade tillgängligheten påverkade de svenska väljarnas röstbenägenhet i 2006 års allmänna val? Analyserna bygger på de svenska valundersökningarna som genomförs i samband med varje folkomröstning, riksdagsval och Europaparlamentsval i samarbete mellan Statistiska centralbyrån och forskare vid Statsvetenskapliga institutionen vid Göteborgs universitet. Bokens huvudsakliga fokus ligger vid den förtidsröstningsreform som genomfördes 2006 men den innehåller även användbar allmän information och historik kring Sveriges system med förtida röstning.
|
|
6. |
- Dahlberg, Stefan, 1975, et al.
(author)
-
Issue voting under different institutional contexts
- 2005
-
In: Paper presented at the Nordic Political Science Association (NOPSA) conference, Reykjavik, Iceland, August 11-13th.
-
Conference paper (other academic/artistic)
|
|
7. |
- Gustafsson, Erik, et al.
(author)
-
Mathematical modelling of the regulation of spa (protein A) transcription in Staphylococcus aureus.
- 2009
-
In: International journal of medical microbiology : IJMM. - : Elsevier BV. - 1618-0607 .- 1438-4221. ; 299:1, s. 65-74
-
Journal article (peer-reviewed)abstract
- In the present work a general systems biology approach has been used to study the complex regulatory network controlling the transcription of the spa gene, encoding protein A, a major surface protein and an important virulence factor of Staphylococcus aureus. A valid mathematical model could be formulated using parameter values, which were fitted to quantitative Northern blot data from various S. aureus regulatory mutants using a gradient search method. The model could correctly predict spa expression levels in 4 different regulatory mutants not included in the parameter value search, and in 2 other S. aureus strains, SH1000 and UAMS-1. The mathematical model revealed that sarA and sarS seem to balance each other in a way that when the activating impact of sarS is small, e.g. in the wild-type, the repressive impact of sarA is small, while in an agr-deficient background, when the impact of sarS is maximal, the repressive impact of sarA is close to its maximum. Furthermore, the model revealed that Rot and SarS act synergistically to stimulate spa expression, something that was not obvious from experimental data. We believe that this mathematical model can be used to evaluate the significance of other putative interactions in the regulatory network governing spa transcription.
|
|
8. |
- Lindskog, Hilma, et al.
(author)
-
The Voter Next Door : Stigma Effects on Advance Voting for Radical Right Parties
- 2023
-
In: Political Studies. - : SAGE Publications. - 0032-3217 .- 1467-9248.
-
Journal article (peer-reviewed)abstract
- Despite the influence of stigmatization on vote choices, little attention has been given to the impact of social stigma on voters’ selection of voting procedures. To bridge this gap, our study focuses on Sweden, where the open-display ballot system at polling stations potentially compromises vote secrecy. Using survey data from the Swedish National Election Studies in 2014 and 2018, we examine the relationship between citizens’ voting procedure choices and their support for a highly stigmatized radical right party, the Sweden Democrats. Our findings reveal that voters of the Sweden Democrats are more inclined to vote in advance, particularly in districts with low general party support, indicating a high level of stigma. We argue that advance voting can be seen as a strategy to safeguard vote secrecy when voting for stigmatized parties within an institutional context featuring public displays of ballots. In addition, our research sheds light on the importance of electoral integrity in maintaining the confidentiality of voters’ choices.
|
|
9. |
|
|
10. |
|
|