scholarly journals The series spectrum of ionised carbon (C II)

For the development of the theory of atomic structure there would appear to be a special need for data relating to the series spectra of the lighter elements. It has, therefore, been thought desirable to publish the present account of the series of singly-ionised carbon without waiting for the completion of the investigation of the spectrum at other stages of ionisation. It is an essential feature of Bohr's quantum theory of spectra that while the series constant for neutral atoms is nearly the same as that for hydrogen, the value of this constant will be increased four times when the atom is singly ionised, nine times when it is doubly ionised, 16 times when it is trebly ionised, and so on. Evidence that a system of series represents a particular stage of ionisation is thus to be sought in the value of the series constant for the system in question. Experimental confirmation has been obtained as far as the second ionisation by Paschen in the case of aluminium,* and as far as the third ionisation by the present writer in the case of silicon.

Author(s):  
Volodymyr Holovko ◽  
◽  
Larysa Yakubova ◽  

The key problems of nation- and state-building are revealed in the concept of the chronotope of the Ukrainian “long twentieth century,” which is a hybrid projection of the “long nineteenth century.” An essential feature of this stage in the history of Ukraine and Ukrainians is the realization of the intentions of socioeconomic, ethnocultural and political emancipation: in fact, the end of the Ukrainian revolution, which began in the context of World War I and the destruction of the colonial system. The third book tells about the contradictions of post-Soviet transit. The three modern revolutions, the development of “oligarchic republics,” the subjectivization of Ukraine in the world through self-awareness of the European choice are visible manifestations of the final stage of the century-old Ukrainian revolution and anti-colonial liberation war. The essential transformations of the Ukrainian project are understood in the broad optics of post-totalitarian transit, the successful completion of which now rules for the national idea of Ukraine. For a wide audience.


Author(s):  
Roger Ling ◽  
Paul Arthur ◽  
Georgia Clarke ◽  
Estelle Lazer ◽  
Lesley A. Ling ◽  
...  

Before looking in more general terms at the pattern of development in the insula, we may make a number of preliminary points. First of all, it bears repeating that the process of change which we have outlined was continuous, and that by classifying it in phases we have inevitably simplified the picture. Just because a particular intervention can be assigned to a time when, say, walls were being painted in the Third Style, we should not think of it as a unique, compartmentalized phenomenon; the insula was constantly evolving, and it would have continued to evolve had the eruption of AD 79 not put a stop to the process. Our phases are merely a convenient way of trying to impose some kind of chronological pattern on the chain of events. In all probability changes took place more frequently and in a more piecemeal fashion than is normally realized. It is, of course, difficult to be precise about this, because our methods of dating are too unsophisticated for the necessary fine tuning; but we may suspect that, for every major rebuilding programme, there were many minor adjustments and modifications which have left no trace, or virtually no trace, in the archaeological record. And such adjustments may have happened within relatively brief periods. One has only to look at houses in modern Britain to appreciate the nature and the frequency of the alterations which they tend to undergo, ranging from the blocking or opening of windows to loft conversions and the addition of new wings. The house in which the present writer lives has been radically enlarged on two occasions, as well as having a doorway blocked, most of the windows replaced, and part of the roof redesigned—all within the space of thirty five years, and mostly in separate operations, in other words in what can technically be regarded as distinct phases. However much the archaeologist would like to divide a building’s history into broad and clear-cut chronological categories, the reality of the situation will probably more often than not have been far more complex.


1977 ◽  
Vol 30 (6) ◽  
pp. 555-568
Author(s):  
B. K. Donne

The theme of the Ascension of Jesus Christ is one of the most JL important in the New Testament, yet during the present century, very little theological attention has been given to it. Most of the published work has been in the form of articles in theological journals and commentaries, though J. G. Davies' Bampton Lectures entitled He Ascended into Heaven, published in 1958, were devoted to the subject, and later, there appeared, also in English, U. Simon's The Ascent to Heaven in 1961. Even H. B. Swete's The Ascended Christ, which first appeared in 1910 and was subsequently published in several editions until 1916, expresses the hope that the work might awaken a response to a renewed sense of the importance of this great Christian festival. His earlier writing, The Apostles' Creed in 1894, contains a chapter on the Ascension which was a spirited reply to the German scholar Harnack, who asserted that the Ascension had no separate place in the primitive tradition, and whose views considerably influenced the thought of New Testament scholarship for many years to come. This article seeks to make an assessment of what the present writer considers to be a subject of the utmost importance, both in regard to its theological significance in the New Testament, and in its relevance for contemporary Christian experience. The Scriptures declare that Jesus of Nazareth was crucified, buried, and raised again the third day.


1956 ◽  
Vol 6 ◽  
pp. 75-85 ◽  
Author(s):  
W. F. Albright

Ever since the discovery of the Palace of Kapara by Max von Oppenheim in 1911, there has been a debate—often acrimonious—with respect to its date. As late as 1934 there was a variation of some two millennia among active discussants. With the death of Ernst Herzfeld, who stood out until the end for a date in the third millennium, the debate seems to have closed, at least for the time being. In 1954 the late H. Frankfort came out explicitly for a date during the ninth century, preferably in its second half, for the age of Kapara. The same date, though with a higher upper limit, was maintained by A. Moortgat in the official publication of the sculpture of Gozan which appeared the following year. K. Galling had all along favoured such a dating, which he now espouses without reservation. The present writer has also maintained a date between 1100 and 900, concentrating for the past fifteen years on the tenth century.


2021 ◽  
Author(s):  
Liberty Chee

This paper presents an ethics premised on a post-Cartesian ontology: that what we know is how we know and vice-versa. The acknowledgment of the IR scholar’s constitutive relation to the world she seeks to describe, and of which she is a part, entails an ethics that is also a practice and an agency. I build on the notion of diffraction in Karen Barad’s quantum theory and on Foucault’s notion of parrhesia. In place of reflection, Barad offers diffraction as a nonrepresentationalist methodology which attends to the difference knowledge can make rather than the accuracy of our representations. Parrhesia is the ‘third hermeneutic’ which problematizes our relationship with the activity of knowing itself. In the pragmatist sense, we are asked not only to be of use to our communities, but to be mindful of who we are and what kind of subject we become in our inscriptions of the world. This diffractive research ethics addresses two problems in IR theory as they present in the conduct of fieldwork – the limits of reflexivity, notably the impossibility of objectively representing ourselves to ourselves, and the critique that the pragmatist concerns in the ‘doing’ of science pays insufficient attention to how power conditions knowledge production. I suggest that this ethic, which is a performance of our relation to truth, allows us to better realize the pragmatist ideal of a democratic social science by allowing us to resist the centripetal force of epistemic sovereignty.


2021 ◽  
pp. 170-188
Author(s):  
Sven Rosenkranz

The present account, which construes justification as a kind of epistemic possibility of knowing, or of being in a position to know, competes with three recently advanced theories of justification. Of these competitors, the first two construe doxastic justification as the metaphysical possibility of knowing. While they differ in some details, these views share certain problematic features: they fail to yield a corresponding account of propositional justification, have trouble vindicating an intuitive principle of closure for justified belief, and fail to comply with the independently plausible principle that if one has a justified belief, one is in no position to rule out that one has knowledge. The present account does not have these problematic features. According to the third competitor, |φ‎| is propositionally justified in one’s situation just in case it would be abnormal—and so require explanation—if |φ‎| were to be false in the presence of the evidence that one possesses in that situation. This normic theory of justification validates the principle that propositional justification agglomerates over conjunction, and in so doing, violates the constraint that propositions of the form ⌜φ‎ & ¬Kφ‎⌝ never be justified. It likewise contradicts the independently plausible principle that whenever |φ‎| is propositionally justified all things considered, |¬Kφ‎| is not. The present account does not face these problems, since it rejects the relevant agglomeration principle and treats the condition encoded by ⌜¬K¬Kφ‎⌝ as luminous.


Physics Today ◽  
1961 ◽  
Vol 14 (5) ◽  
pp. 48-50 ◽  
Author(s):  
John C. Slater ◽  
William F. Meggers

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