The distribution of radio plasma in time and space

Author(s):  
Katherine M. Blundell

The influence of jet–ejected plasma has been an important theme of this meeting; I draw attention to the prevalence of jet–ejected plasma, in particular that which has not been properly accounted for in the past. There are three strands to this paper: important emission which is prominent only at the lowest radio frequencies; relic radio plasma which must exist if even the most basic aspects of radio source evolutionary models are correct; and evidence that some ‘radio–quiet’ quasars could be FR–I radio sources.

2020 ◽  
Vol 20 (2) ◽  
pp. 1-11
Author(s):  
Zachary Nowak ◽  
Bradley M. Jones ◽  
Elisa Ascione

This article begins with a parody, a fictitious set of regulations for the production of “traditional” Italian polenta. Through analysis of primary and secondary historical sources we then discuss the various meanings of which polenta has been the bearer through time and space in order to emphasize the mutability of the modes of preparation, ingredients, and the social value of traditional food products. Finally, we situate polenta within its broader cultural, political, and economic contexts, underlining the uses and abuses of rendering foods as traditional—a process always incomplete, often contested, never organic. In stirring up the past and present of polenta and placing it within both the projects of Italian identity creation and the broader scholarly literature on culinary tradition and taste, we emphasize that for so-called traditional foods to be saved, they must be continually reinvented.


2020 ◽  
Vol 60 (11) ◽  
pp. 143-146
Author(s):  
Parvana Ismayil Pashayeva ◽  

The article deals with the problems of introducing of time, time changes and the time-place relations as well. Artistic time is distinguished by belonging of an artistic time to the past in the artistic text, and in epos texts as well. In such kinds of texts one can meet with the changing of situations and various forms of substitutions of grammatical time. Speech moment can be used in defining of criteria for the present, past and the future times in epos texts. And speech moment is being connected with the physical time. Grammatical time comes into effect as a result of time pass components of physical time changings of course. Key words: time, place, epos, artistic time, grammatical time


2018 ◽  
Vol 616 ◽  
pp. A128 ◽  
Author(s):  
N. Herrera Ruiz ◽  
E. Middelberg ◽  
A. Deller ◽  
V. Smolčić ◽  
R. P. Norris ◽  
...  

We present very long baseline interferometry (VLBI) observations of 179 radio sources in the COSMOS field with extremely high sensitivity using the Green Bank Telescope (GBT) together with the Very Long Baseline Array (VLBA) (VLBA+GBT) at 1.4 GHz, to explore the faint radio population in the flux density regime of tens of μJy. Here, the identification of active galactic nuclei (AGN) is based on the VLBI detection of the source, meaning that it is independent of X-ray or infrared properties. The milli-arcsecond resolution provided by the VLBI technique implies that the detected sources must be compact and have large brightness temperatures, and therefore they are most likely AGN (when the host galaxy is located at z ≥ 0.1). On the other hand, this technique only allows us to positively identify when a radio-active AGN is present, in other words, we cannot affirm that there is no AGN when the source is not detected. For this reason, the number of identified AGN using VLBI should be always treated as a lower limit. We present a catalogue containing the 35 radio sources detected with the VLBA+GBT, ten of which were not previously detected using only the VLBA. We have constructed the radio source counts at 1.4 GHz using the samples of the VLBA and VLBA+GBT detected sources of the COSMOS field to determine a lower limit for the AGN contribution to the faint radio source population. We found an AGN contribution of >40−75% at flux density levels between 150 μJy and 1 mJy. This flux density range is characterised by the upturn of the Euclidean-normalised radio source counts, which implies a contribution of a new population. This result supports the idea that the sub-mJy radio population is composed of a significant fraction of radio-emitting AGN, rather than solely by star-forming galaxies, in agreement with previous studies.


2003 ◽  
Vol 20 (1) ◽  
pp. 79-84 ◽  
Author(s):  
Daniele Dallacasa

AbstractThere is quite a clear anticorrelation between the intrinsic peak frequency and the overall radio source size in compact steep spectrum (CSS) and gigahertz peaked spectrum (GPS) radio sources. This feature is interpreted in terms of synchrotron self-absorption (although free–free absorption may play a role as well) of the radiation emitted by a small radio source which is growing within the inner region of the host galaxy. This leads to the hypothesis that these objects are young and that the radio source is still developing/expanding within the host galaxy itself.Very young radio sources must have the peak in their radio spectra occurring above a few tens of gigahertz, and for this reason they are termed high frequency peakers (HFPs). These newly born radio sources must be very rare given that they spend very little time in this stage. Ho = 100 km s−1 Mpc−1 and qo = 0.5 are used throughout this paper.


Author(s):  
Olena Rosstalna

The article analyzes the peculiarities of the representation of time and space model in the collection of short stories «Wessex Tales» by the English writer T.Hardy. Based on a contextual analysis of T. Hardy’s stories, time and space model was singled out as the dominant meaning for the creation of «Wessex Tales». It is proved that the category of time in «Wessex Tales» is a component of the composition of works (in some stories the principle of framing is used). Its functioning in the collection occurs in the form of a two-component model, the elements of which are past and present. It is determined that the specific presentation of the past is a combination of «collective» and «individual» time. While presenting individual facts in the lives of specific heroes in the form of «individual» time, the author introduces them into the context of events of community life in the form of «collective» time. Each individual character’s story thus becomes a part of panoramic depiction of Wessex world, while maintaining a connection with real historical events. «Quasi-historicity» is defined as one of the characteristic features of time. The interaction of temporal levels has also been investigated at the level of conflicts and problems in the writer’s stories and novels (the problem of responsibility for actions, the problem of moral choice, etc.). The peculiarity of space organization in the collection of stories is determined by multilevel (panoramic – local image; realistic – mythopoeticized sketches of the metaphorical plan; the existence of two subspaces in the mythologized model of the world) and multivariate. The article analyzes the closed and open, terrestrial and cosmic, real and imaginary spaces that are realized in the system of images (city, town, house, road, etc.).


Author(s):  
Iryna Prylipko

The paper considers the demonstrative aspects of intertext in the prose by Valerii Shevchuk and focuses on the peculiarities of the works’ interaction with the Bible, mythology, and literature, which takes place at the level of different forms and types of intertext. Particular attention is paid to revealing the specifc ‘dialogue’ of V. Shevchuk’s works with their pretexts — hagiography, autobiographical and diary’s literature of Baroque. ɒ e examples discussed testify to the depth and ramifications of the intertextual dialogue in the writer’s prose, reveal the intellectual, philosophical, and elitist nature of his texts. A dialogue with the Bible, mythology, world and Ukrainian literature in the works by V. Shevchuk unfolds in the form of open and hidden quotations, allusions, reminiscences. These details aim at deepening the representation of ideas and themes, forming the subtexts, interpreting images. The writer creates a new artistic form — metatext — mainly through the reinterpretation of the pretexts, among which the works of the Baroque period (poetic, autobiographical, diary genres) and hagiography dominate. Transforming the pretexts at the level of contents, plot, genre, time and space, narrative, V. Shevchuk expands them with monologues, dialogues, descriptions, and details. In the process of interpreting prototexts, the writer resorts to modeling original images, in the context of which he actualizes some worldview points, reveals important moral, ethical, and philosophical problems. Allowing the perception of his work as a ‘textual game’, the writer, at the same time, does not reduce the role of intertext to the level of intellectual play. Intertext becomes a peculiar way of continuing the literary discourses of the past in a dialogue with them. They become re-read, ‘supplemented’ and thus brought once again into the continuous process of forming culture.


2006 ◽  
Vol 14 ◽  
pp. 246
Author(s):  
Christina Ljungberg

I argue that the use of photography in postmodern and postcolonial fiction functions firstly, by providing a powerful strategy for drawing attention to the creative and subjective ways in which both verbal and visual images are produced and presented and, secondly, by validating a verbal narrative’s exploration of events as well as supplying a special access to events and experiences that may have been forgotten or unknown. Photography emerges as a unique vehicle for moving between past and present and for thinking photographically as the image of a fleeting moment in time and space is allowed to dissolve into a multitude of possible takes, conflating various<br />viewpoints and space-times of the past, present and future.


2021 ◽  
Vol 14 (2) ◽  
pp. 114-127
Author(s):  
Tiffany Rhoades Isselhardt

Where are the girls who made history? What evidence have they left behind? Are there places and spaces that bear witness to their memory? Girl Museum was founded in 2009 to address these questions, among many others. Established by art historian Ashley E. Remer, whose work revealed that most, if not all, museums never explicitly discuss or center girls and girlhood, Girl Museum was envisioned as a virtual space dedicated to researching, analyzing, and interpreting girl culture across time and space. Over its first ten years, we produced a wide range of art in historical and cultural exhibitions that explored conceptions of girlhood and the direct experiences of girls in the past and present. Led by an Advisory Board of scholars and entirely reliant on volunteers and donations, we grew from a small website into a complex virtual museum of exhibitions, projects, and programs that welcomes an average 50,000 visitors per year from around the world.


Author(s):  
Radostina Neykova

The journey in the animation cinema can be in many aspects - from fully real tracking of movement in space, through vertical or horizontal movement in the past, present and future, with or without a specific direction, to physical or psychological escape and / or return after time.The text analyzes the specifics of travel, escape and return in key examples of modern animation cinema.In animation, screen movement takes place in a specific space and for a specific time. And the first signal association for avoidance, for travel is precisely movement, movement in time and space. Of course, in animation cinema the movement is absolutely free and unlimited and can vary from fidelity to nature to abstraction and absurdity, it can manifest itself in a new quality of cinema - in the metaphorical image, in the creation of its own system of signs and symbols.The journey in the animation cinema can be in many aspects - from fully real tracking of movement in space, through vertical or horizontal movement in the past, present and future, with or without a specific direction, to physical or psychological escape and / or return after time. The text analyzes the specifics of travel, escape and return in key examples of modern animation cinema. In animation, screen movement takes place in a specific space and for a specific time. And the first signal association for avoidance, for travel is precisely movement, movement in time and space. Of course, in animation cinema the movement is absolutely free and unlimited and can vary from fidelity to nature to abstraction and absurdity, it can manifest itself in a new quality of cinema - in the metaphorical image, in the creation of its own system of signs and symbols.


Author(s):  
Mona Hassan

This epilogue discusses the later birth and development of Islamist movements of widely divergent strains, contrasts their stances with those held by the majority of Muslims, and further contemplates some of the book's central themes. It emphasizes broader patterns regarding the dynamic intersection of faith, community, and politics across time and space, and highlights differences among the premodern and modern contexts of religious communities and their imaginaries. In the modern context, the surging currents of nationalism, colonialism, materialism, and internationalism were influential in shaping the overall tenor of intellectual and social responses to the symbolic communal loss of the Ottoman Caliphate in 1924. Nationalist politics seeking to thwart European colonial incursions and to either embrace or reject the narrowing Turkification and centralization of the Ottoman Empire helped form the reactions of Muslims in Turkey, Egypt, Syria, Palestine, India, the Indonesian Archipelago, and elsewhere. Yet the ideas generated by other traditionally trained Islamic scholarsmore closely paralleled patterns from the past, by forging jurisprudential accommodations of new political realities and by encouraging others to focus on the everlasting Divine.


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