scholarly journals Discovery and studies of stellar associations. The Key to Understanding Star Evolution

Author(s):  
A. A. Akopian

The review presents works carried out in BAO in the period 1947-70. It tells about the history and significance of one of the greatest discoveries of the twentieth century - stellar associations. Among the fundamental works of Ambartsumian and BAO studies of stellar associations occupy a special place. Their discovery radically changed the existing theories of star formation and evolution and "revived" the slowly dying (as previously assumed) Universe. The discovery of stellar associations proved that star formation occurs in our era. Ambartsumian's ideas clarified the existing and somewhat confusing theory of stellar evolution and gradually became one of the generally accepted directions of the theory of stellar evolution. For more than 75 years, scientists from the BAO and many observatories around the world have been studying stellar associations, but surprises and discoveries are not exhausted. Metaphorically, one can say that for a long time astronomers will follow the path illuminated by stellar associations.

Tempo ◽  
1966 ◽  
pp. 2-11 ◽  
Author(s):  
Aurelio de la Vega

For a long time now—long when we consider the quick, changing time-scale of our days—electronic music has been with us. The public at large usually remains cold, confused or merely dazed when faced with any new aesthetic experience. Critics, musicologists and the like still seem, as usual, to be unable to predict what will happen to this peculiar, mysterious and often anathematized way of handling musical composition, while many traditionally-minded composers consider it a degrading destruction of the art of music. On the other hand, the electronic medium seems to attract a long, motley caravan of young, inexperienced and often unprepared ‘beatnik type’ self-titled composers, who believe that the world began yesterday and that you only have to push buttons and prepare IBM cards to obtain magical results. Probably not since Schoenberg proclaimed the equal value of the twelve semitones of our sacred but by now obsolete tempered scale has twentieth-century music been faced with such a bewilderment.


2019 ◽  
Vol 11 (1) ◽  
pp. 151
Author(s):  
Mohammad Owais Khan ◽  
Saudi Arabia

The aim of this paper is to express the idiocy and forlorn elements in Samuel Beckett’s play ‘Waiting for Godot’. To achieve the goals of the research, it is necessary to investigate deeply a blend of comic and pathos involved in the play. These elements are: first, the idiocy which basically depends on the special language of the play, the pitiful and deplorable elements and the use of irony and satire. The play was written in 1949, translated into many languages and it is still performed in many countries all around the world. Waiting for Godot is hailed as one of the masterpieces of the theatre of absurd. With the manifestation of this play on the horizon there came a revolution in the theatre of the twentieth century that was to continue for a long time to come and influence many writers thereafter. Beckett shades light on the sociological and moralistic perspective with the tinge of humour and pathos. His excellent imagination and literary skill create an unforgettable imprint in the minds of his readers. 


1974 ◽  
Vol 58 ◽  
pp. 191-194
Author(s):  
Richard B. Larson

Detailed dynamical model calculations based on a conventional collapse picture of galaxy formation, and conventional assumptions concerning star formation and stellar evolution, are found to be able to reproduce satisfactorily the basic structural and photometric properties of elliptical galaxies. The quasar phenomenon may be identifiable with the formation of the nucleus of a giant elliptical galaxy.


2006 ◽  
Vol 2 (S235) ◽  
pp. 24-28
Author(s):  
Isaac Shlosman

AbstractWe review our recent work on the formation and evolution of disks within triaxial dark matter (DM) halos by means of numerical simulations, including star formation and feedback from stellar evolution. The growing disks are strongly influenced by shapes of DM halos and modify them in turn. Disk parameters are in a broad agreement with those in the local universe. Gas-rich stellar bars grow in tandem with the disk and facilitate the angular momentum redistribution in the system and radial gas inflow. Nested bars appear to form as a by-product. Interactions between various non-axisymmetric components—bars, disks and halos lead to decay of bars or washing out of ellipticity in the inner halo.


1999 ◽  
Vol 26 ◽  
pp. 269-298 ◽  
Author(s):  
Richard Reid

There can be few areas of the world which have been more systematically misrepresented than Africa, especially that part of the continent south of the Sahara. For centuries, and certainly since the Midas-like Mansa Musa sat astride West Africa on the maps of fourteenth-century Spain, the weird and wonderful imagery of Africa has flooded Europe's vision of that continent. Much of this imagery has been generated by Europeans, and even where it has been generated by Africans themselves, the original meaning and intention is often difficult to discover. The imagery has, to the non-African world, become Africa; this is the case to the point where, at the end of the twentieth century, almost every adjective placed before the name “Africa” is loaded, has some ideological or political currency, and indeed has a history of its own.Most famously, perhaps, Africa was for a long time “dark”, and still that image periodically appears in assorted Western media, a comforting crutch to an audience which remains somewhat confused as to what to make of the continent. Africa is often supposed to have a “heart,” in a way that neither Europe nor North America does. This is perhaps related to the continent's geographical shape, for it is rather more self-contained than Europe, Asia, or the Americas. It is more likely, however, that an African “heart” is sought precisely because it cannot, using the clumsy surgical tools of Western culture, be found. In more recent times, Africa's “dark heart” has been replaced by its “troubled heart;” but the idea remains unchanged.


2001 ◽  
pp. 85-90
Author(s):  
O. V. Kozerod

The development of the Jewish religious movement "Khabad" and its organizations in the first quarter of the twentieth century - one of the important research problems, which is still practically not considered in the domestic Judaica. At the same time, this problem is relevant in connection with the fact that the religious movement "Khabad" during the twentieth century became the most widespread and influential area of Judaism in Ukraine and throughout the world.


2018 ◽  
pp. 5-29 ◽  
Author(s):  
L. M. Grigoryev ◽  
V. A. Pavlyushina

The phenomenon of economic growth is studied by economists and statisticians in various aspects for a long time. Economic theory is devoted to assessing factors of growth in the tradition of R. Solow, R. Barrow, W. Easterly and others. During the last quarter of the century, however, the institutionalists, namely D. North, D. Wallis, B. Weingast as well as D. Acemoglu and J. Robinson, have shown the complexity of the problem of development on the part of socioeconomic and political institutions. As a result, solving the problem of how economic growth affects inequality between countries has proved extremely difficult. The modern world is very diverse in terms of development level, and the article offers a new approach to the formation of the idea of stylized facts using cluster analysis. The existing statistics allows to estimate on a unified basis the level of GDP production by 174 countries of the world for 1992—2016. The article presents a structured picture of the world: the distribution of countries in seven clusters, different in levels of development. During the period under review, there was a strong per capita GDP growth in PPP in the middle of the distribution, poverty in various countries declined markedly. At the same time, in 1992—2016, the difference increased not only between rich and poor groups of countries, but also between clusters.


Author(s):  
Jesse Schotter

Hieroglyphs have persisted for so long in the Western imagination because of the malleability of their metaphorical meanings. Emblems of readability and unreadability, universality and difference, writing and film, writing and digital media, hieroglyphs serve to encompass many of the central tensions in understandings of race, nation, language and media in the twentieth century. For Pound and Lindsay, they served as inspirations for a more direct and universal form of writing; for Woolf, as a way of treating the new medium of film and our perceptions of the world as a kind of language. For Conrad and Welles, they embodied the hybridity of writing or the images of film; for al-Hakim and Mahfouz, the persistence of links between ancient Pharaonic civilisation and a newly independent Egypt. For Joyce, hieroglyphs symbolised the origin point for the world’s cultures and nations; for Pynchon, the connection between digital code and the novel. In their modernist interpretations and applications, hieroglyphs bring together writing and new media technologies, language and the material world, and all the nations and languages of the globe....


2016 ◽  
Vol 46 (1) ◽  
pp. 38-47
Author(s):  
Geoffrey Squires

Modernism is usually defined historically as the composite movement at the beginning of the twentieth century which led to a radical break with what had gone before in literature and the other arts. Given the problems of the continuing use of the concept to cover subsequent writing, this essay proposes an alternative, philosophical perspective which explores the impact of rationalism (what we bring to the world) on the prevailing empiricism (what we take from the world) of modern poetry, which leads to a concern with consciousness rather than experience. This in turn involves a re-conceptualisation of the lyric or narrative I, of language itself as a phenomenon, and of other poetic themes such as nature, culture, history, and art. Against the background of the dominant empiricism of modern Irish poetry as presented in Crotty's anthology, the essay explores these ideas in terms of a small number of poets who may be considered modernist in various ways. This does not rule out modernist elements in some other poets and the initial distinction between a poetics of experience and one of consciousness is better seen as a multi-dimensional spectrum that requires further, more detailed analysis than is possible here.


2018 ◽  
Vol 13 (4) ◽  
pp. 496-517
Author(s):  
Ned Hercock

This essay examines the objects in George Oppen's Discrete Series (1934). It considers their primary property to be their hardness – many of them have distinctively uniform and impenetrable surfaces. This hardness and uniformity is contrasted with 19th century organicism (Gerard Manley Hopkins and John Ruskin). Taking my cue from Kirsten Blythe Painter I show how in their work with hard objects these poems participate within a wider cultural and philosophical turn towards hardness in the early twentieth century (Marcel Duchamp, Adolf Loos, Ludwig Wittgenstein and others). I describe the thinking these poems do with regard to industrialization and to human experience of a resolutely object world – I argue that the presentation of these objects bears witness to the production history of the type of objects which in this era are becoming preponderant in parts of the world. Finally, I suggest that the objects’ impenetrability offers a kind of anti-aesthetic relief: perception without conception. If ‘philosophy recognizes the Concept in everything’ it is still possible, these poems show, to experience resistance to this imperious process of conceptualization. Within thinking objects (poems) these are objects which do not think.


Sign in / Sign up

Export Citation Format

Share Document