impregnability

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堅固,難攻不落

English Journal

Holocene morphogenesis of Alexander the Great's isthmus at Tyre in Lebanon.

Marriner N, Morhange C, Meulé S.Author information Centre National de la Recherche Scientifique, Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement, Unité Mixte de Recherche 6635, Université Aix-Marseille, Europôle de l'Arbois, BP 80, 13545 Aix-en-Provence Cedex 04, France.AbstractIn 332 B.C., Alexander the Great constructed an approximately 1,000-m-long causeway to seize the offshore island of Tyre. The logistics behind this engineering feat have long troubled archaeologists. Using the Holocene sedimentary record, we demonstrate that Alexander's engineers cleverly exploited a shallow proto-tombolo, or sublittoral sand spit, to breach the offshore city's defensive impregnability. We elucidate a three-phase geomorphological model for the spit's evolution. Settled since the Bronze Age, the area's geological record manifests a long history of natural and anthropogenic forcings. (i) Leeward of the island breakwater, the maximum flooding surface (e.g., drowning of the subaerial land surfaces by seawater) is dated approximately 8000 B.P. Fine-grained sediments and brackish and marine-lagoonal faunas translate shallow, low-energy water bodies at this time. Shelter was afforded by Tyre's elongated sandstone reefs, which acted as a 6-km natural breakwater. (ii) By 6000 B.P., sea-level rise had reduced the dimensions of the island from 6 to 4 km. The leeward wave shadow generated by this island, allied with high sediment supply after 3000 B.P., culminated in a natural wave-dominated proto-tombolo within 1-2 m of mean sea level by the time of Alexander the Great (4th century B.C.). (iii) After 332 B.C., construction of Alexander's causeway entrained a complete anthropogenic metamorphosis of the Tyrian coastal system.
Proceedings of the National Academy of Sciences of the United States of America.Proc Natl Acad Sci U S A.2007 May 29;104(22):9218-23. Epub 2007 May 18.
In 332 B.C., Alexander the Great constructed an approximately 1,000-m-long causeway to seize the offshore island of Tyre. The logistics behind this engineering feat have long troubled archaeologists. Using the Holocene sedimentary record, we demonstrate that Alexander's engineers cleverly exploited
PMID 17517668

Time course of brain neuronal degeneration and heat shock protein (72) expression following neck tourniquet-induced cerebral ischemia in the rat.

Cizkova D, Vanicky I, Ishikawa T, Marsala M.Author information Institute of Neurobiology, SAS, Kosice, Slovak Republic. cizkova@linux1.saske.skAbstract1. The present study was designed to examine the regional expression of HSP72/73 protein after a 7.5-min period of cerebral ischemia and to compare the distribution of HSP neurons with the localization of irreversible neuronal degeneration as analyzed by silver impregnation technique. 2. During 6-24 hr after cerebral ischemia clear-cut neuronal argyrophilia developed in several brain regions including the hippocampal hilus, nucleus reticularis thalami, and colliculi inferiores. With the exception of the hippocampal hilus, the structures which showed silver impregnability were HSP72 negative at 6-24 hr. 3. Despite the clear HSP72 expression seen in hippocampal CA1 neurons, a significant loss of these neurons was seen at 7 days after ischemia. 4. These data show that in some structures the presence of HSP72 is indicative of higher resistance of these neurons to ischemia-induced degeneration, however, the process of delayed neuronal degeneration appears to be independent of the accelerated synthesis of HSP72 seen during the early period of reflow.
Cellular and molecular neurobiology.Cell Mol Neurobiol.2000 Jun;20(3):367-81.
1. The present study was designed to examine the regional expression of HSP72/73 protein after a 7.5-min period of cerebral ischemia and to compare the distribution of HSP neurons with the localization of irreversible neuronal degeneration as analyzed by silver impregnation technique. 2. During 6-24
PMID 10789834

Resistance of cementum in Class II and V cavities to penetration by an adhesive system.

Ferrari M, Cagidiaco MC, Davidson CL.Author information Department of Restorative Dentistry, University of Siena, Italy.AbstractOBJECTIVES: As the cervical margin located in cementum-dentin is still the most unpredictable area of an adhesive resin restoration, the aim of this investigation was to evaluate the morphology of the cementum layer at the cervical margins of Class V and Class II cavities and the impregnability of this layer to resin bonding systems.
Dental materials : official publication of the Academy of Dental Materials.Dent Mater.1997 May;13(3):157-62.
OBJECTIVES: As the cervical margin located in cementum-dentin is still the most unpredictable area of an adhesive resin restoration, the aim of this investigation was to evaluate the morphology of the cementum layer at the cervical margins of Class V and Class II cavities and the impregnability of t
PMID 9758968

Japanese Journal

Preservative impregnability into wood by a laboratory scaled OPM machine.

鈴木憲太郎,谷川充
木材保存 20(3), 118-124, 1994
To determine the impregnative effects of the oscillating pressure method (OPM) for the pressure treatment of wood, a laboratory scaled OPM machine was prepared and impregnation tests of water-borne pr …
NAID 130000867714

耐熱合成絶縁紙の開発

野嵜正興 [他],西山良太,清野舜治,木村皓吉,三好明
繊維学会誌 38(8), T348-T365, 1982
… It is also suitable for the insulating board of dry type transformers.2) GA-Board, composed of fibrids and super fine glass fibres, is characterized by its easy varnish and oil impregnability, punching quality and high dimensional stability. … It is used as the insulation board for dry type transformers.3) GA-Paper, composed of fibrids and super fine glass fibres, is characterized by its good varnish impregnability and holdability and high dimensional stability. …
NAID 130004203637

精嚢腺の生物学的研究-1-

水口宗男
泌尿器科紀要 6(1), 15-23, 1960-01
… The effect on impregnability of bilateral extirpation of the seminal vesicle of the adult male guinea pig most closely resembled to that of human was investigated from the standpoints of comparative anatomy and physiology. … Furthermore, impregnability and systemic effect, especially the effect on the testicular tissue, of the extirpation have been observed in the long period on those guinea pigs whose bilateral seminal vesicles were surgically removed. …
NAID 120002116939