| 1. |
|
|
| 2. |
- Abbas, Abdul-Karim, 1959, et al.
(författare)
-
Persistent LTP without triggered protein synthesis.
- 2009
-
Ingår i: Neuroscience research. - : Elsevier BV. - 0168-0102. ; 63:1, s. 59-65
-
Tidskriftsartikel (refereegranskat)abstract
- Protein synthesis is believed to be involved in stabilizing synaptic plasticity. Effects lasting longer than about 2-3h are considered to require synthesis of new proteins, implying a functional separation between early (E) and late (L) components. However, the issue of constitutive vs. new protein synthesis is still unclear, especially in young animals. Here, we examined the effects of two protein synthesis inhibitors, anisomycin and emetine, on long-term-potentiation (LTP) in CA1 area of hippocampal slices from 12- to 20-day-old rats. Either drug was applied from -30 min to +30 min with respect to LTP induction, a time window previously reported to be critical. However, the LTP remained stable under the entire recording period of 4h (anisomycin), or 8h (emetine). Proper preparation of emetine solution was evidenced by the fact that, in separate experiments, prolonged treatment with emetine gradually blocked baseline responses. Although no corresponding effect was observed with anisomycin, the drug was judged to be potent by its ability to inhibit yeast growth. The ability of anisomycin to inhibit protein synthesis was further confirmed by radiolabeling experiments assessing the degree of leucine incorporation. Our data suggest that LTP up to at least 8h is not dependent on triggered protein synthesis but can be attained by utilizing proteins already available at induction time.
|
|
| 3. |
- Ekström, Mats, 1961-
(författare)
-
Announced refusal to answer : a study of norms and accountability in broadcast political interviews
- 2009
-
Ingår i: Discourse Studies. - London : Sage Publications. - 1461-4456 .- 1461-7080. ; 11:6, s. 681-702
-
Tidskriftsartikel (refereegranskat)abstract
- This article investigates the announced refusal to answer asa form of dispreferred and challenging response in broadcastpolitical interviews. The aim is to study how the rightnessand wrongness of conduct is dealt with in situations of announcedrefusal. More specifically, the paper focuses on: (1) announcedrefusal as a particular type of conduct; (2) the orientationto norms and accountability in situations of announced refusal;(3) how the legitimacy of politics and journalism is negotiatedin broadcast interviews. The data consist of 23 cases from Swedishelection campaigns, and the analysis is based on ConversationAnalysis, focusing on how the participants treat themselvesand others as normatively accountable. The study indicates thatthe politicians understand themselves as accountable and avoidhostile actions in the interviews. Their refusals are designedmainly to be understood as appropriate distancing actions withoutexplicitly complaining about the interviewers’ conduct.
|
|
| 4. |
- Ekström, Mats, 1961, et al.
(författare)
-
Journalism and the scrutiny of local politics. A study of scrutiny and accountability in Swedish journalism
- 2006
-
Ingår i: Journalism Studies. - 1461-670X. ; 7:2, s. 292-311
-
Tidskriftsartikel (refereegranskat)abstract
- The article presents a study on the role of daily news reporting in the scrutiny of local politics. Political accountability is defined as an important aspect of scrutiny. The study shows that the kind of scrutinizing often mentioned in the literature, characterized by thorough investigations and disclosures of political wrongdoings, nearly doesn’t exist at all in the local press. However, by identifying other forms of scrutinizing more closely related to ordinary news reporting, the study shows that one third of the articles are in some aspect scrutinizing, out of 1500 analysed articles. An overall conclusion is that the local press plays an important role in communicating information and critique concerning how local authority service areas works, and how political responsibilities are fulfilled. The study also indicates that this role has been strengthened during the second half of the 20th twentieth century. The press in three different municipalities has been studied at three different points of time (1961, 1981 and 2001).
|
|
| 5. |
- Ekström, Mats, 1961-
(författare)
-
Power and affiliation in presidential press conferences : A study on interruptions, jokes and laughter
- 2009
-
Ingår i: Journal of Language and Politics. - Amsterdam : John Benjamins Publishing Company. - 1569-2159 .- 1569-9862. ; 8:3, s. 386-415
-
Tidskriftsartikel (refereegranskat)abstract
- Presidential press conference is an enduring form for public interrogations. Interaction in this context regulates and symbolizes relations of power, autonomy and affiliation between the President and the journalists. A general argument is that we have to study sequences of interaction in order to understand the roles and relations established in press conferences. The article investigates interruptions, and jokes and laughter. The study is based on Conversation Analysis and the data encompasses 19 press conferences held by George W Bush from 2005-2007. The analysis shows how the President uses interruptions in order to control the allocation of turns, disagree and reject criticism, demonstrate certainty and conviction, and makes joke with the journalists. Sequences of jokes and laughter strengthen the interactive power of the President, create affiliations, and questioning the expected neutrality of journalism.
|
|
| 6. |
|
|
