IV.—The late Professor Phillips on the North Devon Rocks; with an Introductory Note

1878 ◽  
Vol 5 (7) ◽  
pp. 305-310
Author(s):  
Townshend M. Hall

The Meeting of the British Association at Plymouth has not unnaturally been the means of directing attention to some of the most complex points of Devonshire geology, and of reviving the discussion as to the age and position of the Devonian series in North and South Devon. Mr. Jukes, it will be remembered, died in 1869. Had he lived longer, his energy of purpose would doubtless have led him to carry on the work he had begun, until he could either prove the correctness of his views, or satisfy himself that the generally accepted classification was, after all, the right one. The followers of Jukes seem to confine themselves to those portions only of the district which he had more specially studied—North Somerset, Lynton and Pickwell Down; searching in almost hopeless despair amongst the lower rocks, instead of beginning at the other end of the scale, with the Millstone-grit, and tracing the beds downwards. As a result, the fossiliferous beds of the Upper Devonian have been almost entirely neglected, and their relation to the Carboniferous slates passed over.

2021 ◽  
Vol 77 (1) ◽  
pp. 67-74
Author(s):  
Jessica Donahue ◽  
Steven Hoehner ◽  
Ben Li

This article focuses on the problem of analytically determining the optimal placement of five points on the unit sphere {\bb S}^{2} so that the surface area of the convex hull of the points is maximized. It is shown that the optimal polyhedron has a trigonal bipyramidal structure with two vertices placed at the north and south poles and the other three vertices forming an equilateral triangle inscribed in the equator. This result confirms a conjecture of Akkiraju, who conducted a numerical search for the maximizer. As an application to crystallography, the surface area discrepancy is considered as a measure of distortion between an observed coordination polyhedron and an ideal one. The main result yields a formula for the surface area discrepancy of any coordination polyhedron with five vertices.


The chief circumstance that induced Capt. Flinders to think his observations Upon the marine barometer were worthy of attention, was the coincidence that took place between the rising and falling of the mercury, and the setting in of winds that blew from the sea and from off the land, to which there seemed to be at least as much reference as to the strength of the wind or the state of the atmosphere. Our author’s examination of the coasts of New Holland and the other parts of the Terra Australis, began at Cape Leuwen, and con­tinued eastward along the south coast. His observations, which, on account of their length, we must pass over, show, that a change of wind from the northern half of the compass to any point in the southern half, caused the mercury to rise; and that a contrary change caused it to fall. Also, that the mercury stood considerably higher When the wind came from the south side of east and west, than when, in similar weather, it came from the north side.


2011 ◽  
Vol 105 (2) ◽  
pp. 674-686 ◽  
Author(s):  
Tetsuo Kida ◽  
Koji Inui ◽  
Emi Tanaka ◽  
Ryusuke Kakigi

Numerous studies have demonstrated effects of spatial attention within single sensory modalities (within-modal spatial attention) and the effect of directing attention to one sense compared with the other senses (intermodal attention) on cortical neuronal activity. Furthermore, recent studies have been revealing that the effects of spatial attention directed to a certain location in a certain sense spread to the other senses at the same location in space (cross-modal spatial attention). The present study used magnetoencephalography to examine the temporal dynamics of the effects of within-modal and cross-modal spatial and intermodal attention on cortical processes responsive to visual stimuli. Visual or tactile stimuli were randomly presented on the left or right side at a random interstimulus interval and subjects directed attention to the left or right when vision or touch was a task-relevant modality. Sensor-space analysis showed that a response around the occipitotemporal region at around 150 ms after visual stimulation was significantly enhanced by within-modal, cross-modal spatial, and intermodal attention. A later response over the right frontal region at around 200 ms was enhanced by within-modal spatial and intermodal attention, but not by cross-modal spatial attention. These effects were estimated to originate from the occipitotemporal and lateral frontal areas, respectively. Thus the results suggest different spatiotemporal dynamics of neural representations of cross-modal attention and intermodal or within-modal attention.


Author(s):  
William B. Meyer

One of the earliest historians of the Civil War saw it as a fundamental clash between the peoples of different latitudes. Climate had made the antebellum North and South distinct societies and natural enemies, John W. Draper argued, the one democratic and individualist, the other aristocratic and oligarchical. If such were the case, the future of the reunited states was hardly a bright one. But Draper saw no natural barriers to national unity that wise policy could not surmount. The restlessness and transience of American life that many deplored instead merited, in his view, every assistance possible. In particular, he wrote, Americans needed to be encouraged to move as freely across climatic zones as they already did within them. The tendency of North and South to congeal into hostile types of civilization could be frustrated, but only by an incessant mingling of people. Sectional discord was inevitable only if the natural law that "emigrants move on parallels of latitude" were left free to take its course. These patterns of emigration were left free, for the most part, but without the renewed strife that Draper feared. After the war as before it, few settlers relocating to new homes moved far to the north or south of their points of origin. As late as 1895, Henry Gannett, chief geographer to the U.S. Census, could still describe internal migration as "mainly conducted westward along parallels of latitude." More often as time went on, it was supposed that race and not merely habit underlay the pattern, that climatic preferences were innate, different stocks of people staying in the latitudes of their forbears by the compulsion of biology. Thus, it was supposed, Anglo-Saxons preferred cooler lands than Americans of Mediterranean ancestry, while those of African descent preferred warmer climates than either. Over time, though, latitude loosened its grip and exceptions to the rule multiplied. As the share of the population in farming declined, so did the strongest reason for migrants to stay within familiar climates. Even by the time Gannett wrote, the tendency that he described, though still apparent, was weaker than it had been at mid-century. It weakened because a preference for familiar climates was not a fixed human trait but one shaped by experience and wants, and capable of changing as these variables changed.


1989 ◽  
Vol 9 (4) ◽  
pp. 605-608
Author(s):  
A. Katok

The Ergodic Theory and Dynamical Systems journal pays tribute to V. A. Rokhlin, one of the founders of ergodic theory, a world-renowned topologist and geometer, and a man of tragic fate and exceptional courage. Rokhlin's mathematical heritage splits rather sharply into the ergodic theory – measure theory and topology – geometry parts. This fact has to do with a natural evolution of his interests but also with the keen sense of style in mathematics that Rokhlin possessed to an unusual degree. Naturally, we will concentrate on Rokhlin's contributions to ergodic theory and measure theory, his influence on other mathematicians working in those fields, and the development of some of his ideas. Fortunately, the topology part of Rokhlin's heritage has been superbly presented in Part I of the book ‘A la recherche de la topologie perdue’ published by Birkhaüser in Progress in Mathematics series (v. 62, 1986). The same cannot be said about the work on real algebraic geometry, Rokhlin's last big achievement. The impact of that work, carried out by his students, however, is very much felt now, and is very unlikely to be forgotten or neglected. On the other hand, his work in ergodic theory and measure theory, was restricted primarily to two relatively short time periods, 1947–1950 and 1959–1964, and for the most part was not followed by Rokhlin's immediate students. Hence, it runs a certain risk of being underestimated. We hope that the articles by A. Vershik; S. Yuzvinsky and B: Weiss, published in this issue, will put Rokhlin's work and his influence in ergodic theory into the right perspective.


Author(s):  
ROBERT GHAZARYAN

Tegarama was one of the eastern lands of the Hittite Kingdom. In the geographic sense it is part of the Armenian Highland that is why its history is of special interest to us. Taking into account the fact that the Armenian people had considerable ethnic ties with the Upper Euphrates region, specialists have traditionally tended to identify “Home of Torgom” in the Trans Euphrates region together with the city Tegarama (Assyrian Til-Garimmu) mentioned from the 2nd millennium BC. “Home of Torgom” literally repeats Bet-Togarma mentioned in the Bible. The study of the history of the country of Tegarama is also important because in Armenian historiography, starting from Movses Khorenatsi, Armenian ancestor Hayk is called “Son of Torgom”, and the Armenian people - “People of Torgom”. Most of the researchers located Tegarama in the place of the present settlement Gyurun. By comparing the “Cappadocian”, Hittite and Assyrian sources, Tegarama can be located in the Upper Euphrates valley, on the right bank of the river, to the north of Kargamis, to the west of Isuwa, to the south of Upper Land and to the east of Kanes. The territory of Tegarama was not far from Nesa - one of the initial centers of the Hittites; and it was also one of the initial places of inhabitance of the Hittites. Tegarama also occupied a strategically important position. On the one hand it bordered on the country of Mitanni, on the other hand - on Isuwa. Thus, the country of Tegarama occupied a significant geographic position: on the one hand roads led from here to other western districts of the Armenian Highland, to Tsopk, and on the other hand - to Northern Syria and Northern Mesopotamia. It was also one of the spiritual centers of Hatti.


Author(s):  
Henrich Neumann

The Ballachulish slates, exposed to the north and south of Loch Leven in Argyllshire, contain, in most places, cubes of pyrite up to half an inch in diameter. During a visit to the area in the spring of 1949 the writer's attention was attracted by the dark colour of the 'pyrite' cubes in the North Ballaehulish slate quarry a little more than a mile east of Onich. On examination these proved to consist of a mass of haphazardly orientated crystals of pyrrhotine with irregular outlines. Slates collected from the main working quarry on the south shore of Loch Leven, on the other hand, contain cubes which are single crystals of unaltered pyrite.


C. Vann Woodward’s lecture compares two commemorations of the Civil War fifty years apart, one in 1911 and the other in 1961. The first one reflected sectional reunification predicated on a shared understanding of the tragic nature of war but also a sense that the conflict had solved the problem of sectional animosity. In so doing Woodward notes that whites in the North and South could only accomplish this by excluding meaningful African-American participation. The lecture then outlines the cycles of Reconstruction historiography, and looks at the dual psychological traumas the North and South experienced in the aftermath of Reconstruction. Woodward maintains that after the North emerged victorious from the war it failed to live up to its ideals, leaving wracked guilt, self-criticism, and remorse. The South emerged with a predilection for extortion, indignation, and extreme bellicosity, consistently blaming its own weaknesses on Reconstruction. Woodward suggests that historians should act as therapists, enabling the nation to come to terms with the psychological traumas triggered by the past.


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

The casa degli amanti (house of the lovers), at the south-west corner of the insula, falls into two fairly distinct halves: the atrium complex, oriented on the street to the west, and the peristyle with its surrounding rooms, oriented on the street to the south and on the property boundary to the east. In the atrium complex, the atrium is misplaced to the south of the central axis, allowing space for two large rooms to the north, one of which was possibly a shop or workshop (5.50 m. × 4.70 m.), with a separate entry from the street (I 10, 10), while the other (5.80 m. × 4.50 m.), decorated with mythological wallpaintings and provided with a wide opening on to the peristyle, must have been a dining-room or oecus (room 8). Each of these had a segmental vault rising from a height of about 3.50 m. at the spring to slightly over 4 m. at the crown. In the first the vault is missing, but the holes for some of its timbers are visible in the east wall and a groove along the north wall marks the seating for the planking attached to them; at a higher level, in the north and south walls, are the remains of beam-holes for the joists of the upper floor or attic (see below). The arrangements in room 8 are now obscured by the modern vault constructed to provide a surface for the reassembled fragments of the ceiling-paintings; but the shape of the vault is confirmed by the surviving plaster of the lunettes, while a beam-hole for the lowest of the vault-timbers is visible above the corner of the western lunette in an early photograph (Superintendency neg. C 1944). The shop I 10, 10 had a small window high in the street wall to the south of Its entrance; whether there were any additional windows above the entrance, it is impossible to say, since this part of the wall is a modern reconstruction. Room 8 was lit by a splayed window cut in the angle of the vault and the eastern lunette, opening into the upper storey of the peristyle.


2018 ◽  
Vol 45 (6) ◽  
pp. 1224-1241
Author(s):  
Darong Dai

Purpose The purpose of this paper is to use a variety-expanding growth model embedded in the North–South framework to study the implementation of globally desirable protection of intellectual property rights (IPRs) in the emerging South. Design/methodology/approach The authors use a variety-expanding growth model with innovation-led economic growth in both North and South. As usual, imitations targeted equally at Northern and Southern innovations only occur in the South, and the authors focus on the design of Southern IPR protection. Findings Welfare-maximizing degrees of Southern IPR protection are explicitly derived for both North and South. There tends to exist a North–South conflict on the right degree of protection. To resolve this conflict, the Southern government can grant appropriate subsides to support domestic innovators. The authors derive the right rate of innovation subsidies such that the conflict is resolved. Originality/value This paper represents the first attempt to deal with the North–South conflict on the degree of Southern IPR protection within the variety-expanding growth model. And the novel perspective is to relax the North–South tension on IPR protection via additionally implementing an appropriate innovation subsidy policy.


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