Stories From The Gap: Towards A Critical Pedagogy Of Community Service Journalism

The ways that journalists teach and learn through the production of knowledge is the fundamental concern of this paper. Popular journalism provides a powerful pedagogy that names and effectively silences marginalised communities as objects of knowledge. Such communities are confronted by the contradictory struggle to expose the gap between the promise and reality of liberal democratic capitalism while challenging the gap between dominant, negative representations and their lived experiences. It is increasingly questionable whether contemporary journalism is capable of serving the interests of socially and culturally diverse publics that fall between limited success-narratives and the impoverished language of marginalisation and social injustice. A critical pedagogy of community service journalism challenges journalists to shift their consciousness from a politics of critique to a language of possibility and strive for substantive democratic encounters through cultural action and critical knowledge. As a form of knowledge work grounded in a set of pedagogical practices, journalism is shaped by four "integrated spheres of praxis": Emotional Attitude, Power Awareness, Critical Engagement and Knowledge Production. Through these spheres, journalists are potentially empowered to imagine innovative ways of entering the politics of representation and critically engaging grassroots and marginalised communities while reporting on complex issues and problems

The effects of housing segregation on citizen impact with regarding to play environments : comparative analysis of incoming error reports, views and questions

Boendesegregation är ett problem som behöver belysas för att uppnå större jämlikhet i samhället. Barn i utsatta områden riskerar att få sämre förutsättningar med lägre delaktighet i samhället i stort, vilket påverkar deras vuxna liv. Med den utgångspunkten har det här arbetet ett fokus på jämlikhet utifrån ett socioekonomiskt perspektiv. Arbetet handlar i grunden om att utröna allmänhetens förväntningar på sin närmiljö, med fokus på lekmiljöer vars primära användargrupp är barn. Uppsala kommun förvaltar flertal lekplatser i kommunen och för att ta reda på vad medborgare tycker till om angående lekplatserna har de inkomna ärendena analyserats. Utifrån den informationen har en bild vuxit fram där det framgår att medborgarna i Uppsala har olika förväntningar på sin närmiljö beroende på var de bor. Arbetets slutsats är att människor i områden med bättre förutsättningar tenderar att höra av sig till kommunen i större utsträckning. De med sämre förutsättningar tenderar att höra av sig i mindre utsträckning.Housing segregation is a problem that needs to be highlighted in order to achieve greater equality in society. Children in vulnerable areas risk having worse conditions with lower participation in society at large, which affects their adult lives. With that starting point, this work has a focus on equality from a socio-economic perspective. The work is about finding out the public's expectations of their local environment, with a focus on play environments which primary user group is children. Uppsala municipality manages several playgrounds in the municipality. To find out what citizens think about the playgrounds, the cases received have been analysed. Based on that information, a picture has emerged where it is clear that the citizens of Uppsala have different expectations of their local environment depending on where they live. The conclusion of this thesis is that people in areas with better conditions tend to contact the municipality to a greater extent. Those with worse socio-economic conditions tend to get in touch to a lesser extent

Magnetic characteristics of the Ság-hegy volcanic complex, little Hungarian Plain

The Ság-hegy volcanic complex is located in the little Hungarian Plain Volcanic Field (LHPVF). An 39Ar/ 40Ar geochronolgy gave an isochron age of 5,42 ±0,06 My for the Ság- hegy (Wijbrans et al. 2004). Evolution of the volcano included two clearly distinct events. At first ascending magma entered meteoric water in a fluvio-lacustrine environment. Fuel-coolant interaction (FCI) of water (water saturated sediment) and magma led to the formation of a phreatomagmatic tuff ring. After water supply was used up the interior of the tephra ring was filled by a lava lake. Locally the tuff ring wall collapsed and subsequently lava was able to flow out of the tuff ring. Due to intensive quarrying most of the effusive rocks have been removed, giving excellent insight to emplacement processes of feeder dykes, sills and lava lake remnant (Martin and Németh, 2004). Pyroclastic rocks include massive and bedded units of lapilli stone, lapilli tuff/ tuff as well as pyroclastic breccias. Varying proportions of accidental lithic clasts indicate excavation of basement rocks during the erruption. Juvenile clasts comprise mainly of angular, blocky sideromelane glass shards with nearly equent shapes and a minor proportion of tachylite. A high amount of water within the systeme is evidenced by soft sediment deformation and accretionary lapilli in the pyroclastic bedsets. Dune and antidune bedding, chute and pool structures grading and sorting features suggest that the tuff ring was gradually built up by base surge and intercalated fallout deposits. Subsequent to the phreatomagmatic stage the inner crater has been filled with a lava lake which morphology was determined by the tephra deposits. At contacts to the pyroclastics a chilled margin of several cm thickness is developed which shows platty (onion shaped) jointing. A high number of dykes and sills were injected into adjacent bedsets. These shallow intrusive bodys can be found throughout the whole complex truncating and dissecting the pyroclastic units. In cases where pyroclastic units comprised a high amount of water this included even mingling with the wet tephra, leading to the formation of peperites. The uppermost units were represented by thick lava flows, which covered all underlaying units. These rocks were quarryed out already a century ago except a large strombolian spatter cone which is now exposed at the uppermost level of the quarry as a big sliced remnant including its large multiple feeder dyke. This setting offers a perfect opportunity to study the relationship between dyke and sill enplacement with transitions from vertical to bedding-parallel geometries. Dimensions of the volcanic bodies range from cm thickness of small apophyses from the lava lake into the pyroclastic rocks up to dykes and sills of several m. We performed a detailed study on a section of pyroclastic rocks truncated by dykes and sills and have evaluated the magnetic characteristics. Preliminary results show that magnetic susceptibility of all the pyroclastic units is in the range of ferrimagnetic susceptibility and varies between 2 to 20 x 10-3 SI. (Fig.1). Magnetic fabric anisotropy is generally low (< 5 %) and in the field of oblate fabric geometries, in bedded tuffs a significantly higher (5 to 10 %) but also oblate anisotropy is realized. Magnetic lineations indicate a consistent NE (020) directed material transport for the whole succession. Remanence intensities are quite high with values of 1 to 15 A/m In the pyroclastic units a stable magnetic remanence characterized by a single vector component has been measured, MDF values are in the range of 30 to 160 mT. The field vector has exclusively reversed polarity and steep inclination, which is in agreement with the paleofield direction and therefore is regarded as natural remanent magnetization aquired during deposition of the pyroclastic successions. In the dykes and sills, however, remanence direction scatter significantly and display geometries ranging from steep to flat orientations and show also strong variations in the declination. Coercitivity of magnetic carriers is significanty lower as indicated by the lower MDF values which are in the range of 8 to 30 mT in the dykes and 15 to 30 mT in sills. Beside a minor contribution of a viscose component the remanence vector in the dykes and sills is characterized by a stable single component. However, further investigations are needed to fully understand and interpret the result

Rich Cluster and Non-Cluster Radio Galaxies & the (P,D) Diagram for a Large Number of FR I and FR II Sources

We present a comparison of the optical and radio properties of radio sources inside and outside the cores of rich clusters from combined samples of more than 380 radio sources. We also examine the nature of FR I and FR II host galaxies, and in particular, we illustrate the importance of selection effects in propagating the misconception that FR I's and FR II's are found in hosts of very different optical luminosity. Given the large sample size, we also discuss the power-size (P,D) distributions as a function of optical luminosity.Comment: to appear in Life Cycles of Radio Galaxies, ed. J. Biretta et al., New Astronomy Reviews; 6 pages, including 2 figure

Stark deceleration of CaF molecules in strong- and weak-field seeking states

We report the Stark deceleration of CaF molecules in the strong-field seeking ground state and in a weak-field seeking component of a rotationally-excited state. We use two types of decelerator, a conventional Stark decelerator for the weak-field seekers, and an alternating gradient decelerator for the strong-field seekers, and we compare their relative merits. We also consider the application of laser cooling to increase the phase-space density of decelerated molecules.Comment: 10 pages, 8 figure

The Discovery of Extended Thermal X-ray Emission from PKS 2152-699: Evidence for a `Jet-cloud' Interaction

A Chandra ACIS-S observation of PKS 2152-699 reveals thermal emission from a diffuse region around the core and a hotspot located 10" northeast from the core. This is the first detection of thermal X-ray radiation on kiloparsec scales from an extragalactic radio source. Two other hotspots located 47" north-northeast and 26" southwest from the core were also detected. Using a Raymond-Smith model, the first hotspot can be characterized with a thermal plasma temperature of 2.6$\times10^6$ K and an electron number density of 0.17 cm$^{-3}$. These values correspond to a cooling time of about 1.6$\times10^7$ yr. In addition, an emission line from the hotspot, possibly Fe xxv, was detected at rest wavelength 10.04\AA. The thermal X-ray emission from the first hotspot is offset from the radio emission but is coincident with optical filaments detected with broadband filters of HST/WFPC2. The best explanation for the X-ray, radio, and optical emission is that of a `jet-cloud' interaction. The diffuse emission around the nucleus of PKS 2152-699 can be modeled as a thermal plasma with a temperature of 1.2$\times10^7$ K and a luminosity of 1.8$\times10^{41}$ erg s$^{-1}$. This emission appears to be asymmetric with a small extension toward Hotspot A, similar to a jet. An optical hotspot (EELR) is seen less than an arcsecond away from this extension in the direction of the core. This indicates that the extension may be caused by the jet interacting with an inner ISM cloud, but entrainment of hot gas is unavoidable. Future observations are discussed.Comment: To appear in the Astrophysical Journal 21 pages, 5 Postscript figures, 1 table, AASTeX v. 5.

Effect of confinement on coil-globule transition

The equilibrium thermodynamic properties of a linear polymer chain confined to a space between two impenetrable walls (lines) at a distance $D$ under various solvent conditions have been studied using series analysis and exact enumeration technique. We have calculated the end to end distance of polymer chain, which shows a non-monotonic behaviour with inter wall ^M separation $D$. The density distribution profile shows a maxima at a particular value of ${(D=)}D^*$. Around this $D^*$, our results show that the collapse^M transition occurs at higher temperature as compared to its bulk value of 2d and 3d. The variation of $\theta-$ temperature with $D$ shows a re-entrance behaviour. We also calculate the force of compression exerted by the walls (lines) on the polymer.Comment: 11 pages with 7 eps figure