The temperature-range of formation for tourmaline, rutile, brookite, and anatase in the Dartmoor granite

Author(s):  
A. Brammall ◽  
H. F. Harwood

The range of temperature within which tourmaline can arise in nature has not hitherto been determined. No synthesis of this mineral is on record, and experimental data are therefore lacking. On the other hand, rutile, brookite, and anatase have all been prepared synthetically, and the experimental data suggest their rutile is formed at the highest temperatures, brookite at temperatures considerably lower, and anatase at a point still lower on the scale. It is generally conceded that for rutile a pyrogenic origin is possible, and that brookite and anatase appear only as secondary minerals. The status of tourmaline as a possible pyrogenic mineral is regarded as doubtful by Clarke, who states that' in igneous rocks tourmaline seems to have been produced by fumarole action, and not as a direct separation from the magma'.

1971 ◽  
Vol 49 (22) ◽  
pp. 3744-3754 ◽  
Author(s):  
R. K. Boyd ◽  
George Burns

A model suitable for studies of non-equilibrium effects in chemical reactions (13) was used to predict incubation times for the dissociation of O2 in Ar between 2900 and 7200 °K. It was found that the model accounts satisfactorily for the experimental data. On the other hand previously used theories underestimate these incubation times by a factor of five to ten; the discrepancy is traced to assumptions used in previous investigations. When the same model is applied to the dissociation of Br2 in Ar and Cl2 in Ar, it correlates well a variety of experimental data, obtained over a wide temperature range.


Author(s):  
Kyle Fruh

Discussions of closely associated notions of practical necessity, volitional necessity, and moral incapacity have profited from a focus on cases of agential crisis to further our understanding of how features of an agent’s character might bind her. This paper turns to agents in crises in order to connect this way of being bound to the phenomenon of moral heroism. The connection is fruitful in both directions. Importing practical necessity into examinations of moral heroism can explain the special sense of bindingness moral heroes frequently express while preserving the status of heroic acts as supererogatory. It also helps explain how heroes persevere and act as so few others do. On the other hand, the context of moral heroism allows a fuller development of some features of the concept of practical necessity, shedding more illuminating light on the roots of practical necessity in character through recent findings in the psychology of moral exemplars.


1943 ◽  
Vol 12 (1) ◽  
pp. 28-34
Author(s):  
Kenneth Scott Latourette

A strange contrast exists in the status of the Christian Church in the past seventy years. On the one hand the Church has clearly lost some of the ground which once appeared to be safely within its possession. On the other hand it has become more widely spread geographically and, when all mankind is taken into consideration, more influential in shaping human affairs than ever before in its history. In a paper as brief as this must of necessity be, space can be had only for the sketching of the broad outlines of this paradox and for suggesting a reason for it. If details were to be given, a large volume would be required. Perhaps, however, we can hope to do enough to point out one of the most provocative and important set of movements in recent history.


2007 ◽  
Vol 37 ◽  
pp. 5-30 ◽  
Author(s):  
Kader Konuk

AbstractThe place of Jews was highly ambiguous in the newly founded Turkish Republic: In 1928 an assimilationist campaign was launched against Turkish Jews, while only a few years later, in 1933, German scholars—many of them Jewish—were taken in so as to help Europeanize the nation. Turkish authorities regarded the emigrants as representatives of European civilization and appointed scholars like Erich Auerbach to prestigious academic positions that were vital for redefining the humanities in Turkey. This article explores the country's twofold assimilationist policies. On the one hand, Turkey required of its citizens—regardless of ethnic or religious origins—that they conform to a unified Turkish culture; on the other hand, an equally assimilationist modernization project was designed to achieve cultural recognition from the heart of Europe. By linking historical and contemporary discourses, this article shows how tropes of Jewishness have played—and continue to play—a critical role in the conception of Turkish nationhood. The status of Erich Auerbach, Chair of the Faculty for Western Languages and Literatures at İstanbul University from 1936 to 1947, is central to this investigation into the place of Turkish and German Jews in modern Turkey.


Proglas ◽  
2020 ◽  
Vol 29 (2) ◽  
Author(s):  
Anton Getsov ◽  
◽  
◽  

The paper is part of a series of publications that set out to examine various aspects in the analysis of appositive constructions. The purpose of this particular study is to reveal the multidimensional, diverse, and complex interaction between three types of syntactic relations – attributive, predicative, and appositive. The study offers a critical review of various theories on the status of the grammatical relation between the components of non-detached (close) appositive constructions. The main argument of this paper is that determining this status, on the one hand, is a function of the morphological and semantic characteristics of the components of the construction, while, on the other hand, it determines their syntactic status.


Author(s):  
Anne Knudsen

Anne Knudsen: The Century of Zoophilia Taking as her point of departure the protests against a dying child having his last wish fulfilled because his wish was to kill a bear, the author argues that animals have achieved a higher moral status than that of humans during the 20th century. The status of animals (and of “nature”) is seen as a consequence of their muteness which on the one hånd makes it impossible for animals to lie, and which on the other hånd allows humans to imagine what animals would say, if they spoke. The development toward zoophilia is explained as a a logical consequence of the cultural naturalisation of humans, and the author draws the conclusion that we may end up entirely without animals as a category. This hypothetical situation will lead to juridical as well as philosophical complications.


2014 ◽  
Vol 1 (2) ◽  
Author(s):  
Jean-Louis Quantin

AbstractIn seventeenth-century religious discourse, the status of solitude was deeply ambivalent: on the one hand, solitude was valued as a setting and preparation for self-knowledge and meditation; on the other hand, it had negative associations with singularity, pride and even schism. The ambiguity of solitude reflected a crucial tension between the temptation to withdraw from contemporary society, as hopelessly corrupt, and endeavours to reform it. Ecclesiastical movements which stood at the margins of confessional orthodoxies, such as Jansenism (especially in its moral dimension of Rigorism), Puritanism and Pietism, targeted individual conscience but also worked at controlling and disciplining popular behaviour. They may be understood as attempts to pursue simultaneously withdrawal and engagement.


1903 ◽  
Vol 3 (9-10) ◽  
pp. 548-549
Author(s):  
E. Board

Lung surgery is one of the youngest departments of surgical science. The basis for the development of methods of operative intervention in pulmonary diseases lies in the 1st possibility of preventing the danger of pneumothorax, which (danger) is currently so insignificant that some surgeons consider it even necessary to cause preliminary pneumothorax. On the other hand, the experimental data have shown the possibility of the loss of parts of the lung tissue and the conditions for the healing of its wounds.


Antiquity ◽  
1941 ◽  
Vol 15 (60) ◽  
pp. 371-381 ◽  
Author(s):  
Colin Matheson

The rabbit shares one characteristic with the archaeologist—both dig into the earth. Hence the latter, contemplating some object or evidence revealed by his spade, may sometimes be viewing merely the result of the activities of a humbler but much more numerous type of excavator. Is he not warned to ‘always make sure that an apparent post-hole is not a rabbit- or rat-hole’? And does not Professor James Ritchie describe the rabbit as ‘a burrower and a vandal which makes short cuts through the neat layers and classifications of the excavator’? On the other hand, the rabbit's activity or lack of it may on occasion be of service; it was a long patch of virgin turf on Easton Down, untouched by rabbits or moles, which led Dr Stone in 1932 to remove the turf, thus revealing a layer of tightly packed flint nodules covering a Bronze Age urn-field. Hence no apology, we feel, is needed for an article on the rabbit in a journal primarily concerned with archaeological research; particularly as much of the article deals with the status of the rabbit in medieval times, a topic which has already figured briefly in ANTIQUITY.


2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Yih-Sheng Huang ◽  
Sheng-Haur Yu ◽  
Yea-Ru Sheu ◽  
Kuo-Shien Huang

This experiment aims to produce a free radical while annoying the oxidizing-reducing reagent of the ammonium persulfate and the sodium bisulfite under nitrogen, then trigger copolymerization between modified-mica and chitosan to prepare a variety of copolymers. This experiment also aims to study the related properties of these copolymer materials. The experimental data shows that the copolymer has more thermal stability and better absorption of UV than chitosan. But the above physical properties will be less if the mica ratio in copolymer is more than 8%. On the other hand, the SEM photo of the microstructure also shows that the modified mica distributes homogeneously on the surface of the film of the copolymer.


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