dd-abelian quotients of (d+2)(d+2)-angulated categories

Let ${\mathscr T}$ be a triangulated category. If $T$ is a cluster tilting object and $I = [ \operatorname{add} T ]$ is the ideal of morphisms factoring through an object of $\operatorname{add} T$, then the quotient category ${\mathscr T} / I$ is abelian. This is an important result of cluster theory, due to Keller-Reiten and K\"{o}nig-Zhu. More general conditions which imply that ${\mathscr T} / I$ is abelian were determined by Grimeland and the first author. Now let ${\mathscr T}$ be a suitable $( d+2 )$-angulated category for an integer $d \geqslant 1$. If $T$ is a cluster tilting object in the sense of Oppermann-Thomas and $I = [ \operatorname{add} T ]$ is the ideal of morphisms factoring through an object of $\operatorname{add} T$, then we show that ${\mathscr T} / I$ is $d$-abelian. The notions of $( d+2 )$-angulated and $d$-abelian categories are due to Geiss-Keller-Oppermann and Jasso. They are higher homological generalisations of triangulated and abelian categories, which are recovered in the special case $d = 1$. We actually show that if $\Gamma = \operatorname{End}_{ \mathscr T }T$ is the endomorphism algebra of $T$, then ${\mathscr T} / I$ is equivalent to a $d$-cluster tilting subcategory of $\operatorname{mod} \Gamma$ in the sense of Iyama; this implies that ${\mathscr T} / I$ is $d$-abelian. Moreover, we show that $\Gamma$ is a $d$-Gorenstein algebra. More general conditions which imply that ${\mathscr T} / I$ is $d$-abelian will also be determined, generalising the triangulated results of Grimeland and the first author.Comment: 19 pages. This is the final accepted version, which has been accepted for publication in the Journal of Algebr

Media coverage of shifting emotional regimes: Donald Trump's angry populism

Against the backdrop of the new populism, this article takes a closer look at the role of anger in media coverage of Trump’s inauguration. The article suggests that Trump’s rise heralds a shift in prevailing ‘emotional regime’ towards what I will refer to as ‘angry populism’. Angry populism – embodied by Trump – is based on a rhetoric which seeks broad appeal through the deliberate expression of anger. Adopted as an interpretive framework in media coverage, it suggests that the anger of Trump, his supporters and his opponents is both salient and relevant to political life

Towards a typology of mediated anger: routine coverage of protest and political emotion

This article establishes the importance of studying mediated anger. It first develops a typology of mediated anger, suggesting it is performative, discursively constructed, collective, and political. It applies this typology to routine coverage of anger in UK protest coverage during a two-month time period in 2015. The analysis demonstrates that anger serves as a cause of engagement and a barometer of public feeling. It sets out a spectrum of discursive constructions of mediated anger. At one end sits rational and legitimate anger, which forms the basis for social change. Along the spectrum sits aggressive and/or disruptive anger motivated by rational and legitimate concerns. At the other end of the spectrum lies illegitimate and irrational anger. The analysis shows that protesters can be simultaneously angry and rational, peaceful and legitimate. Discourses on protest construct a commonsense theory of political motivation, whereby anger explains the desire for political engagement, but only occasionally brings about other negative emotions or actions. As such, the article contributes a more nuanced understanding of anger as a political emotion

Emotion and journalism

The era of digital journalism represents a shift in the forms of knowing – or epistemology – of journalism. This shift, I argue, has opened up new spaces for more emotional and personalized forms of expression in public discourse. In referring to digital journalism, I am interested in tracing the consequences of a particular set of developments that have occurred as a result of the “digital disruption” (Jones and Salter, 2011) engendered by the emergence of online journalism and convergence. These processes have been ongoing since the 1990s (e.g. Scott, 2005) but remain profoundly destabilizing and transformative. The changes to journalism practice that have resulted from these processes are multifarious and far-reaching, involving fundamental challenges to everything from the business model of journalism to journalism’s self-understanding and its relationships to audience

Not an Act of God : Anger in British Disaster Coverage

Peer reviewe

On the political possibilities of therapy news : media responsibility and the limits of objectivity in disaster coverage

Peer reviewe

Journalism and Emotional Work

This essay introduces the special issue entitled Journalism and Emotional Work. It argues the need for a context-sensitive understanding of emotional work in journalism profession. Contributions to the issue elucidate the social context for and the social consequences of emotional work. It demonstrates that journalists' emotional work is shaped by the changes in the industry and specific contexts in which they carry out their work.Non peer reviewe

A cold complex chemistry toward the low-mass protostar B1-b: evidence for complex molecule production in ices

Gas-phase complex organic molecules have been detected toward a range of high- and low-mass star-forming regions at abundances which cannot be explained by any known gas-phase chemistry. Recent laboratory experiments show that UV irradiation of CH3OH-rich ices may be an important mechanism for producing complex molecules and releasing them into the gas-phase. To test this ice formation scenario we mapped the B1-b dust core and nearby protostar in CH3OH gas using the IRAM 30m telescope to identify locations of efficient non-thermal ice desorption. We find three CH3OH abundance peaks tracing two outflows and a quiescent region on the side of the core facing the protostar. The CH3OH gas has a rotational temperature of ~10 K at all locations. The quiescent CH3OH abundance peak and one outflow position were searched for complex molecules. Narrow, 0.6-0.8 km s-1 wide, HCOOCH3 and CH3CHO lines originating in cold gas are clearly detected, CH3OCH3 is tentatively detected and C2H5OH and HOCH2CHO are undetected toward the quiescent core, while no complex molecular lines were found toward the outflow. The core abundances with respect to CH3OH are ~2.3% and 1.1% for HCOOCH3 and CH3CHO, respectively, and the upper limits are 0.7-1.1%, which is similar to most other low-mass sources. The observed complex molecule characteristics toward B1-b and the pre-dominance of HCO-bearing species suggest a cold ice (below 25 K, the sublimation temperature of CO) formation pathway followed by non-thermal desorption through e.g. UV photons traveling through outflow cavities. The observed complex gas composition together with the lack of any evidence of warm gas-phase chemistry provide clear evidence of efficient complex molecule formation in cold interstellar ices.Comment: 23 pages, 7 figures, accepted for publication in Ap

The normalization of surveillance and the invisibility of digital citizenship: media debates after the Snowden revelations

Based on an analysis of newspaper and blog coverage of the Snowden revelations and their aftermath, our study demonstrates that newspapers normalize surveillance by highlighting concerns over national security and focusing on surveillance of elites, and minimize the attention given to the mass surveillance of citizens. By contrast, blogs allow more critical discussions relevant to digital citizenship, enabling debates on civil rights and privacy. This article argues that if conventional media limit debates relevant to digital citizenship, blogs may provide a space that contests and makes visible the key problems scantly evident in newspapers. We suggest research on digital citizenship in mediated debates should focus on how political subjects are silenced, as well as the emerging spaces where this silence can be broken