Space as a Becoming Fresh Water Expo Pavilion as a Creative Practice for an Architecture to Come

Author(s):  
Emine Görgül ◽  
Author(s):  
Roberta L. Paton

ABSTRACTThirteen fragments of fossil elasmobranchs can be identified with certainty from East Kirkton. Those collected in situ range from Units 32 to 37. The remains appear to come from two different families of sharks: spines which show features typical of the Lower Carboniferous hybodont Tristychius arcuatus Agassiz; teeth from a xenacanth which fall within the size range of those found in the Lower Carboniferous xenacanth Diplodoselache woodi Dick. Both these genera are found in other Oil-Shale assemblages in the Lothians. These rare shark fossils reinforce the evidence that the East Kirkton Limestone was fresh water in origin.


It has long been known that certain species of fresh-water fish, inhabiting the rivers, lakes and ponds of India, are in the habit of leaving the water and making considerable excursions over the adjacent marshes and meadows, and some have been credited with the power of climbing trees. The older authors (Cuvier, Owen and Günther) explained the power which these fishes possessed of sustaining life outside the water by supposing that they carried with them, in reservoirs at the sides of the head, supplies of water by which the gills were kept moist. On the other hand, Taylor (1831) and specially Day (1808) and Hyrtl (1863) showed, as the result of close observation, that the reservoirs in question contained little or no water, and that the fish, when kept in tanks or globes, could be seen to come to the top at intervals and emit air-bubbles. It was, therefore, clear that the reservoirs in question contained not water but air, and that the fish must be regarded as true air-breathers. The fact that certain fish, such as Protopterus in Africa, Lepidosiren in S. America and Ceratodus in Australia, possess organs for breathing air as well as gills for respiring in water is well known; the structure and habits of these “double-breathers” (Dipnoi) form an integral part of the instruction given in every elementary course of Zoology. But the air-breathing organs of the Dipnoi are homologous with the lungs of the higher vertebrates, and the Dipnoi must be regarded as comparatively unchanged survivors from the time when the Devonian fish were making their first attempt to invade the land, at a period when no land-inhabiting air-breathing vertebrates existed.


2017 ◽  
pp. 882-892
Author(s):  
Ozge Dolunay

The growing population in Turkey as well as in the rest of world is focusing their attention on the availability of main resources for now and for future generations. As the clock ticks by, this focus is intensifying at an exponential rate. Depleting resources, dependency on fossil fuels, high costs of energy, water quality, food cultivation and food safety present themselves as expected issues of our generation. Waste in the form of electricity and fresh water in agricultural practices can be reduced by using Reduction, Recovery, Reuse, Recycle and efficient Technologies in order to come to a sustainable management of waste starting with small-scale farming implementations. This generation must act to implement these changes, and they must act now.


Author(s):  
Ozge Dolunay

The growing population in Turkey as well as in the rest of world is focusing their attention on the availability of main resources for now and for future generations. As the clock ticks by, this focus is intensifying at an exponential rate. Depleting resources, dependency on fossil fuels, high costs of energy, water quality, food cultivation and food safety present themselves as expected issues of our generation. Waste in the form of electricity and fresh water in agricultural practices can be reduced by using Reduction, Recovery, Reuse, Recycle and efficient Technologies in order to come to a sustainable management of waste starting with small-scale farming implementations. This generation must act to implement these changes, and they must act now.


1917 ◽  
Vol 26 (3) ◽  
pp. 297-323 ◽  
Author(s):  
Koan Nakagawa

1. The morbidity of pulmonary distomiasis among the school children in the plains of the Prefecture of Shinchiku is 4.3 per cent, while in the mountainous regions among the savages it reaches in some districts 50 per cent. 2. Seventeen species of cercariæ were discovered in fresh water mollusks in the Prefecture of Shinchiku, Formosa. But it was impossible to ascertain from morphological characteristics alone which of them developed into the pulmonary fluke. Consequently, the eggs of the pulmonary fluke after hatching into miracidia were allowed to come into contact with several species of fresh water mollusks, of which they infected two. But as it was difficult to keep the two spedes alive in the aquarium long enough to get cercariæ, the second intermediate hosts of the pulmonary distomas were looked for in the severely infected villages of the savage tribes. 3. The miracidia of the pulmonary distomas leave the egg about 4 weeks after they are first set free in the water, and if they do not reach mollusks they soon die. 4. Three species of fresh water mollusks were found to act as the first intermediate host of the pulmonary distomas; viz., Melania libertina Gould, Melania tuberculata Mueller, and Melania obliquegranosa Smith. 5. The cercariæ of the pulmonary distoma may be identified by their small size and a spine in the oral sucker. They develop in the liver of the three spedes of Melania mentioned above. 6. The second intermediate hosts of the pulmonary distoma,detected in the Prefecture of Shinchiku, are the following three species of fresh water crabs: Potamon (Geothelphusa) obtusipes Stimpson (native name, red crab), Potamon (Geothelphusa) dehaanii White (native name, dung crab), and Eriocheir japonicus De Haan (native name, hairy crab). In addition it was discovered that the following two species might act as intermediate hosts: Sesarma dehaanii Milne-Edwards and Potamon (Parathelphusa) sinensis Milne-Edwards. In Formosa four of the five species are the carriers of the cercariæ. 7. The encysted cercariæ are found in the gills, liver, and muscle, and have an elongated dark excretory vesicle in the middle of their bodies. They resemble the adult flukes. 8. Full grown encysted cercariæ fed to dogs develop into mature pulmonary distomas and begin to lay eggs in about 90 days. 9. In the final host the parasites are taken into the alimentary canal as encysted cercariæ. They liberate themselves from the cysts in the intestine and bore through the jejunum into the abdominal cavity. They then pierce the diaphragm, enter the thoracic cavity, and piercing the pleura reach the lungs. In the parenchyma of the lungs they form cysts and develop into adult forms. 10. The chief causes of pulmonary distomiasis are the eating of raw or insufficiently cooked crabs infected with the cercariæ of Paragonimus westermanni, and the drinking of river water containing them.


Author(s):  
J. Anthony VanDuzer

SummaryRecently, there has been a proliferation of international agreements imposing minimum standards on states in respect of their treatment of foreign investors and allowing investors to initiate dispute settlement proceedings where a state violates these standards. Of greatest significance to Canada is Chapter 11 of the North American Free Trade Agreement, which provides both standards for state behaviour and the right to initiate binding arbitration. Since 1996, four cases have been brought under Chapter 11. This note describes the Chapter 11 process and suggests some of the issues that may arise as it is increasingly resorted to by investors.


Author(s):  
P. A. Madden ◽  
W. R. Anderson

The intestinal roundworm of swine is pinkish in color and about the diameter of a lead pencil. Adult worms, taken from parasitized swine, frequently were observed with macroscopic lesions on their cuticule. Those possessing such lesions were rinsed in distilled water, and cylindrical segments of the affected areas were removed. Some of the segments were fixed in buffered formalin before freeze-drying; others were freeze-dried immediately. Initially, specimens were quenched in liquid freon followed by immersion in liquid nitrogen. They were then placed in ampuoles in a freezer at −45C and sublimated by vacuum until dry. After the specimens appeared dry, the freezer was allowed to come to room temperature slowly while the vacuum was maintained. The dried specimens were attached to metal pegs with conductive silver paint and placed in a vacuum evaporator on a rotating tilting stage. They were then coated by evaporating an alloy of 20% palladium and 80% gold to a thickness of approximately 300 A°. The specimens were examined by secondary electron emmission in a scanning electron microscope.


Author(s):  
C.K. Hou ◽  
C.T. Hu ◽  
Sanboh Lee

The fully processed low-carbon electrical steels are generally fabricated through vacuum degassing to reduce the carbon level and to avoid the need for any further decarburization annealing treatment. This investigation was conducted on eighteen heats of such steels with aluminum content ranging from 0.001% to 0.011% which was believed to come from the addition of ferroalloys.The sizes of all the observed grains are less than 24 μm, and gradually decrease as the content of aluminum is increased from 0.001% to 0.007%. For steels with residual aluminum greater than 0. 007%, the average grain size becomes constant and is about 8.8 μm as shown in Fig. 1. When the aluminum is increased, the observed grains are changed from the uniformly coarse and equiaxial shape to the fine size in the region near surfaces and the elongated shape in the central region. SEM and EDAX analysis of large spherical inclusions in the matrix indicate that silicate is the majority compound when the aluminum propotion is less than 0.003%, then the content of aluminum in compound inclusion increases with that in steel.


2003 ◽  
Vol 2 (1) ◽  
pp. 84
Author(s):  
D CHERSEVANI ◽  
A DILENARDA ◽  
P GOLIANI ◽  
M GRELLA ◽  
F BRUN ◽  
...  
Keyword(s):  

Crisis ◽  
2003 ◽  
Vol 24 (1) ◽  
pp. 24-28 ◽  
Author(s):  
Lourens Schlebusch ◽  
Naseema B.M. Vawda ◽  
Brenda A. Bosch

Summary: In the past suicidal behavior among Black South Africans has been largely underresearched. Earlier studies among the other main ethnic groups in the country showed suicidal behavior in those groups to be a serious problem. This article briefly reviews some of the more recent research on suicidal behavior in Black South Africans. The results indicate an apparent increase in suicidal behavior in this group. Several explanations are offered for the change in suicidal behavior in the reported clinical populations. This includes past difficulties for all South Africans to access health care facilities in the Apartheid (legal racial separation) era, and present difficulties of post-Apartheid transformation the South African society is undergoing, as the people struggle to come to terms with the deleterious effects of the former South African racial policies, related socio-cultural, socio-economic, and other pressures.


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