744 research outputs found
EU-China security cooperation in context. EUI Working Paper RSCAS 2015/31 (European University Institute).
The paper has two main aims. First it seeks to explore whether security cooperation between the EU and China is taking place, and if so, whether it is evenly spread across a number of security dimensions. Second it intends to investigate the underlying motives or drivers that either facilitate or inhibit EU-China security cooperation. Further, it will explain why the EU rather than EU member states is chosen as the unit of analysis, explore the development of EU-China security relations, and illustrate how historical legacies, identity aspects and differences over key issues, such as sovereignty and territorial integrity, affect EU-China security relations. In addition, it will deal with the theoretical and conceptual underpinnings of the study on EU-China security relations, paying particular emphasis to the concepts of diffusion and convergence. Whether or not EU-China security cooperation converges in one of the ten chosen security dimensions will be assessed by the degree of policy conformity the EU and China are able (or unable) to obtain with regard to threat perceptions and policy response thereto. Attention will be devoted to diffusion factors which can affect changes in the perception of threats and response thereof. Among these factors are changes in (geo-political) structure, interests and norms. A further objective of the paper will be to explore whether policy convergence on threat perceptions and response thereto might be a precondition for joint action, or whether practical cooperation can take place without prior policy convergence between the EU and China. The paper will round off with a short section introducing the security dimensions that are being examined in the more detailed study on which this paper is based
āItās Just Addictive People That Make Addictive Videosā: Childrenās Understanding of and Attitudes towards Influencer Marketing of Food and Beverages by YouTube Video Bloggers
Exposure to influencer marketing of foods and beverages high in fat, sugar, and/or salt (HFSS) increases childrenās immediate intake. This study qualitatively explored childrenās understanding of, and attitudes towards, this marketing, to elucidate potential mechanisms through which exposure affects behavior. In six focus groups (n = 4) children (10ā11 years) were shown a YouTube video featuring influencer marketing of an HFSS product. Inductive thematic analysis identified six themes from childrenās discussions of this marketing: (1) YouTubers fill a gap in childrenās lives, (2) the accessibility of YouTubers increases childrenās understanding of their actions, (3) influencer marketing impacts allāthe influencer, the brand, and the viewer, (4) attitudes towards influencer marketing are most affected by a YouTuberās familiarity, (5) YouTuber influencer marketing is effective because they are not āstrangersā, (6) children feel able to resist influencer marketing of HFSS products. Children had an understanding of the persuasive intent of this marketing, and although most were sceptical, familiar YouTubers elicited particularly sympathetic attitudes. Children felt affected by influencer marketing of HFSS products, but believed they were able to resist it. Beyond theoretical insight, this study adds to the growing body of evidence to suggest childrenās exposure to HFSS influencer marketing should be reduced
Walking as a meaningful leisure occupation: the implications for occupational therapy
Introduction: In response to growing interest in leisure in occupational therapy and the importance of understanding how occupations maintain, enhance and promote health and wellbeing, a qualitative phenomenological study was conducted to explore the experiences of walking for leisure. Method: Six healthy student participants, identified as regular walkers, were interviewed using a semi-structured format. Data were analysed following interpretative phenomenological analysis methodology. Findings: Participants expressed how and why walking was meaningful to them; the four main themes were social connectedness, wellbeing, connection to nature and achievement from a challenge. Findings suggest that occupational therapists could use walking and leisure occupations in intervention, and that there is scope for an occupational therapy perspective in health promotion. Conclusion: Determining the subjective meaning of engaging in walking as a leisure occupation has implications for occupational science and health promotion in helping to explain why people do what they do
From DNA sequence to application: possibilities and complications
The development of sophisticated genetic tools during the past 15 years have facilitated a tremendous increase of fundamental and application-oriented knowledge of lactic acid bacteria (LAB) and their bacteriophages. This knowledge relates both to the assignments of open reading frames (ORFās) and the function of non-coding DNA sequences. Comparison of the complete nucleotide sequences of several LAB bacteriophages has revealed that their chromosomes have a fixed, modular structure, each module having a set of genes involved in a specific phase of the bacteriophage life cycle. LAB bacteriophage genes and DNA sequences have been used for the construction of temperature-inducible gene expression systems, gene-integration systems, and bacteriophage defence systems.
The function of several LAB open reading frames and transcriptional units have been identified and characterized in detail. Many of these could find practical applications, such as induced lysis of LAB to enhance cheese ripening and re-routing of carbon fluxes for the production of a specific amino acid enantiomer. More knowledge has also become available concerning the function and structure of non-coding DNA positioned at or in the vicinity of promoters. In several cases the mRNA produced from this DNA contains a transcriptional terminator-antiterminator pair, in which the antiterminator can be stabilized either by uncharged tRNA or by interaction with a regulatory protein, thus preventing formation of the terminator so that mRNA elongation can proceed. Evidence has accumulated showing that also in LAB carbon catabolite repression in LAB is mediated by specific DNA elements in the vicinity of promoters governing the transcription of catabolic operons.
Although some biological barriers have yet to be solved, the vast body of scientific information presently available allows the construction of tailor-made genetically modified LAB. Today, it appears that societal constraints rather than biological hurdles impede the use of genetically modified LAB.
Can the dissociative PTSD subtype be identified across two distinct trauma samples meeting caseness for PTSD?
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Production of Ļ0 and Ī· mesons in Cu+Au collisions at sNN =200 GeV
Production of Ļ0 and Ī· mesons has been measured at midrapidity in Cu+Au collisions at sNN=200GeV. Measurements were performed in Ļ0(Ī·)āĪ³Ī³ decay channel in the 1(2)-20GeV/c transverse momentum range. A strong suppression is observed for Ļ0 and Ī· meson production at high transverse momentum in central Cu+Au collisions relative to the p+p results scaled by the number of nucleon-nucleon collisions. In central collisions the suppression is similar to Au+Au with comparable nuclear overlap. The Ī·/Ļ0 ratio measured as a function of transverse momentum is consistent with mT-scaling parametrization down to pT=2GeV/c, its asymptotic value is constant and consistent with Au+Au and p+p and does not show any significant dependence on collision centrality. Similar results were obtained in hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions as well as in e+e- collisions in a range of collision energies sNN=3-1800 GeV. This suggests that the quark-gluon-plasma medium produced in Cu+Cu collisions either does not affect the jet fragmentation into light mesons or it affects the Ļ0 and Ī· the same way
Single fraction radiosurgery using Rapid Arc for treatment of intracranial targets
<p>Abstract</p> <p>Background</p> <p>Stereotactic-Radio-Surgery (SRS) using Conformal-Arc-Therapy (CAT) is a well established irradiation technique for treatment of intracranial targets. Although small safety margins are required because of very high accuracy of patient positioning and exact online localisation, there are still disadvantages like long treatment time, high number of monitor units (MU) and covering of noncircular targets. This planning study analysed whether Rapid Arc (RA) with stereotactic localisation for single-fraction SRS can solve these problems.</p> <p>Methods</p> <p>Ten consecutive patients were treated with Linac-based SRS. Eight patients had one or more brain metastases. The other patients presented a symptomatic vestibularis schwannoma and an atypic meningeoma. For all patients, two plans (CAT/RA) were calculated and analysed.</p> <p>Results</p> <p>Conformity was higher for RA with additional larger low-dose areas. Furthermore, RA reduced the number of MU and the treatment time for all patients. Dose to organs at risk were equal or slightly higher using RA in comparison to CAT.</p> <p>Conclusions</p> <p>RA provides a new alternative for single-fraction SRS irradiation combining advantages of short treatment time with lower number of MU and better conformity in addition to accuracy of stereotactic localisation in selected cases with uncomplicated clinical realization.</p
Larval and adult environmental temperatures influence the adult reproductive traits of Anopheles gambiae s.s.
Planet Populations as a Function of Stellar Properties
Exoplanets around different types of stars provide a window into the diverse
environments in which planets form. This chapter describes the observed
relations between exoplanet populations and stellar properties and how they
connect to planet formation in protoplanetary disks. Giant planets occur more
frequently around more metal-rich and more massive stars. These findings
support the core accretion theory of planet formation, in which the cores of
giant planets form more rapidly in more metal-rich and more massive
protoplanetary disks. Smaller planets, those with sizes roughly between Earth
and Neptune, exhibit different scaling relations with stellar properties. These
planets are found around stars with a wide range of metallicities and occur
more frequently around lower mass stars. This indicates that planet formation
takes place in a wide range of environments, yet it is not clear why planets
form more efficiently around low mass stars. Going forward, exoplanet surveys
targeting M dwarfs will characterize the exoplanet population around the lowest
mass stars. In combination with ongoing stellar characterization, this will
help us understand the formation of planets in a large range of environments.Comment: Accepted for Publication in the Handbook of Exoplanet
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