The Diffuse Interstellar Bands And Organic Molecules In Space

1997 ◽  
Vol 161 ◽  
pp. 49-59
Author(s):  
Theodore P. Snow

AbstractThe diffuse interstellar bands have been recognized for over 75 years, and remain unidentified today. This family of broad interstellar absorption features, now numbering well over 100, has been the subject of a great deal of speculation, intensive observations, and lately has stimulated the interest of chemists as well as astronomers. In this review I briefly summarize the history of the problem and then provide an overview of the current state of affairs. I emphasize recent evidence that the carriers are large molecular species, most likely organic in nature, which are abundant in the diffuse interstellar medium. If so, then the ultimate identification of the responsible species will provide a new window into the detailed chemical and physical properties of the interstellar gas. I also discuss constraints imposed on the carriers by a recent reassessment of the interstellar carbon abundance.

Author(s):  
Stephen Rodgers

This chapter provides an overview of the book as a whole. It opens with a brief history of Hensel studies—starting with the rediscovery of Hensel in the 1980s, leading through the growth of Hensel scholarship toward the end of the twentieth century, and ending with the current state of affairs—and argues that we need to understand Hensel’s music better. It then outlines some of the book’s guiding principles—including a belief in power of music analysis to access and communicate the wonders of Hensel’s songs and a commitment to exploring Hensel’s songs within its many diverse contexts—and explains the book’s overall organization around these contexts.


2005 ◽  
Vol 68 (2) ◽  
pp. 195-214 ◽  
Author(s):  
konrad hirschler

this article examines whether it is possible to trace eighteenth- and nineteenth-century revivalist thought to earlier ‘medieval’ examples. the discussion is centred on the issue of ijtiha¯d/taqli¯d, which featured prominently in revivalist thought. taking the example of scholars in thirteenth-century damascus, it firstly compares the respective readings of ijtiha¯d/taqli¯d, by focusing on one individual, abu¯ sha¯ma (d. 1267). it secondly asks whether a scholar like abu¯ sha¯ma, who had adopted a reading similar to later revivalists, also took a critical and oppositional stand against large sections of his contemporary society, i.e. a revivalist posture. it is this article's main contention that the example of abu¯ sha¯ma shows the need to study in more detail possible revivalist traditions prior to the ‘grand’ movements. the combination of the history of ideas and social history might allow a deeper understanding of how and in what contexts calls for reform and opposition to the current state of affairs were expressed.


2007 ◽  
Vol 31 (9) ◽  
pp. 348-350 ◽  
Author(s):  
Arun Jha

Nepal has a short and slowly developing history of psychiatry. Recent political turmoil has crippled Nepalese healthcare in rural areas. Although the final quarter of the 20th century saw some development of psychiatric services in Nepal, the majority of Nepalese people remain deprived of such services even today. There is no national health programme or Mental Health Act. Psychiatric services are hospital based and most are centralised in the capital. Nepalese psychiatrists need urgent help, but they have been unable to form a strong professional body. This report presents the historical background, current state of affairs and suggestions for modernising mental health services in Nepal.


space&FORM ◽  
2021 ◽  
Vol 45 ◽  
pp. 163-182
Author(s):  
Krystyna Guranowska-Gruszecka ◽  

The subject of the article relates to the current state of affairs of spatial planning system in force in Poland and the possibility to introduce positive changes to it. The author adopted the examples with which she attempts to illustrate the system from her own extensive experience in urban planning, especially in Warsaw, which was assumed as the main research field. In the article, the discussion on the abovementioned planning system starts with the statistics of urban plans made in Warsaw, the scope of social participation and analyzes conducted prior to projects. Then, focus was placed on contemporary trends: functional diversity, land and building ownership, the European Green Deal trend, as well as the necessity for management principles in urban planning and project implementations. The basic assumed research method was to compare the achievements of urban development elements in Poland with similar ones located in countries of Western Europe. In the conclusions, the final summary is presented. It consists in the author’s own recommendations for corrective action for functioning of the spatial planning system in Poland.


1991 ◽  
Vol 12 (2) ◽  
pp. 259-275
Author(s):  
L. D. Jacobs

The textual criticism of the New Testament (1): The current methodological Situation This first article in a two-part series on the textual criticism of the New Testament focuses on the current state of affairs regarding textcritical methodology. Majority text methods and the two main streams of eclecticism, viz moderate and rigorous eclecticism, as well as statistical methods and the use of conjectural emendation, are reviewed with regard to their views on method as well as the history of the text. The purpose is to arrive at a workable solution which the keen and often not so able textual critic, translator and exegete can use in his handling of the Greek text of the New Testament.


Author(s):  
Joelle Fathi

Tobacco use is at epidemic levels and a leading cause of disability and premature death in the United States, disproportionately affecting vulnerable populations and minority groups. While cigarette consumption is at an all-time low, electronic cigarette use has soared, especially in teenagers, who are at the highest risk for lifelong tobacco dependence. This article first offers a brief history of tobacco use and discusses nicotine prevalence and pathogenesis of tobacco dependence. Following this information, the author discusses various tobacco concerns and the benefits of quitting tobacco use. Nurses are vital partners in the war against tobacco through proactive patient education, successful cessation treatment and counseling, and advocacy for policy change.


2017 ◽  
Vol 671 (1) ◽  
pp. 184-201 ◽  
Author(s):  
Robert Shireman

The idea of financing higher education with the income that comes afterward has been formally proposed and implemented in the United States, in various permutations, since at least 1971. The attractiveness of the concept is exemplified by the political diversity of its proponents, ranging from Senator Ted Kennedy to President Ronald Reagan, and from presidential candidates Michael Dukakis (Democratic governor who ran in 1988) to Jeb Bush (Republican former governor who ran in 2016). This article examines the design of the various proposals over time, the arguments in support and opposition, and the current state of affairs.


2012 ◽  
Vol 10 (H16) ◽  
pp. 356-356
Author(s):  
Misha Haywood

AbstractSecular evolution in disks through angular momentum redistribution of stars induce radial mixing of their orbits. While theoretical studies and simulations now abound on the subject - with various predicted effects: disks growth, flattening of metallicity gradients, possible reversing of the mean age as a function of radius in disk, etc, observational evidences remain sparse. In the Galaxy, possible signatures are searched for in the local distributions of velocities, abundances and ages, or in the variation of large scale chemical gradients with time. I will present the current state of affairs and discuss what kind of evidences is available from data in the Milky Way.


2019 ◽  
Vol 43 (4) ◽  
pp. 556-570
Author(s):  
Gregory Goswell

The key to discovering why David wants to build a house for Yhwh, as well as the reason for the divine refusal, is to be found in a close reading of the opening verse of 2 Samuel 7. This verse is an example of free indirect discourse, namely, the picture of the king’s situation (in his house and at rest) is how David viewed the current state of affairs. On that basis, David considered that the time was ripe for such a project, for he was under the misapprehension that he had achieved rest from his enemies (v.1b), but God revealed through Nathan that the time of rest lay in the future (v.11a). Despite differences in wording, the identical explanation for God’s embargo on temple-building in the time of David is given in the three passages in 1 Kings and 1 Chronicles that broach the subject.


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