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A retrospective study of patients attending the emergency department with acute asthma was performed in Bermuda. Climatic data (barometric pressure, rainfall, humidity, and wind strength and direction) were obtained and compared with frequency of exacerbations of asthma. Three factors--namely, relative humidity, average daily temperature, and northeasterly winds--were found to be related to worsening asthma. Owing to Bermuda''s lack of pollution and aeroallergens it was thought that these weather parameters had a direct effect on the asthmatic population. 相似文献
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Peiris JS Guan Y 《Philosophical transactions of the Royal Society of London. Series B, Biological sciences》2004,359(1447):1075-1079
Severe acute respiratory syndrome (SARS) emerged as a new disease in Guangdong Province, People's Republic of China in late 2002. Within weeks it had spread to Hong Kong and thence globally to affect over 25 countries across five continents. The disease had the propensity to cause clusters of pneumonia, particularly in healthcare workers or close family contacts. A global effort coordinated by the World Health Organization successfully defined the aetiology, epidemiology and clinical characteristics of the disease, and the implementation of case identification, isolation and infection control measures led to the interruption of the global outbreak by July 2003. The pattern of disease emergence and strategies for control of SARS provides lessons for coping with future emerging infectious disease threats. 相似文献
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The next influenza pandemic: lessons from Hong Kong 总被引:4,自引:0,他引:4
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A new species ofAppendicospora, A. honkongensis, occurring on fronds ofLivistona chinensis in Hong Kong is described and illustrated with interference contrast micrographs. It differs fromA. coryphae in having larger ascomata and ascospores, and a peridium of brown-walled cells. The differences betweenApiospora andAppendicospora are reexamined in the light of the cultural characteristics of the latter. 相似文献
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Clohiesia lignicola sp. nov. (freshwater ascomycetes) is introduced based on a specimen collected on submerged wood in the Tung Chung River,
Hong Kong. Ascomata are clypeate, asci are cylindric-clavate with a relatively massive apical apparatus and ascospores are
fusoid-ellipsoidal.Clohiesia lignicola differs fromC. corticola in having wider asci and wider fusoid-ellipsoidal ascospores, and larger ascomata.Clohiesia lignicola is described and illustrated with light micrographs and is also compared with species in the genus,Annulatascus. 相似文献
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Zoospores of mangrove isolates of Schizochytrium mangrovei KF6, KF7, KF12 (three strains), Thraustochytrium striatum KF9 and Ulkenia sp. KF13 were examined for their chemotactic responses to amino acids, carbohydrates, ethanol, and leaf extracts using a capillary root model. Most leaf extracts of mangrove plants and a marsh grass tested were shown to induce moderate chemotactic responses in zoospores of both S. mangrovei KF6 and Ulkenia sp. KF13. Of the remaining amino acids and carbohydrates evaluated, glutamic acid and pectin induced strong attraction in zoospores of S. mangrovei KF6 and Ulkenia sp. KF13, suggesting these are the major components in leaves which may be responsible for the chemotactic response of thraustochytrid zoospores in nature. Zoospores of T. striatum KF9, in general, showed a weak chemotactic response to all the tested compounds and extracts except cellulose, which elicited a moderate response. The ecological significance of the data presented is discussed. 相似文献
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Spadicoides hodgkissa sp. nov. and Spadicoides arengae sp. nov., recorded from submerged decaying wood in Hong Kong and from decaying palm fronds in Brunei, are described and illustrated. Spadicoides hodgkissa is characterized by versicolored, obovoid conidia with up to 2 septa, including a distal distoseptum and a proximal euseptum, while Spadicoides arengae is characterized by unicellular, ellipsoidal conidia with verruculose walls that are relatively large. Eight genera, including Dendrographium, Helminthosporium, Luzfridiella, Paliphora, Polyschema, Polytretophora, Porosubramaniania, and Weufia, have the same conidiogenesis as Spadicoides. A key to these genera is provided. 相似文献
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Harmful algal bloom causative collected from Hong Kong waters 总被引:2,自引:0,他引:2
The secondary metabolites of three sponges collected as bycatch in the fishing nets were explored for biological potencies. The sponge Dendrilla nigraexhibited wider biological activity. It showed potent activity in antibacterial, brineshrimp cytotoxicity, larvicidal, antifouling and ichthyotoxic assays. One of the well-studied cytotoxic sponge Axinella donnaniwas least active in brineshrimp cytotoxicity assay. The secondary metabolites of Clathria gorgonoideswere highly cytotoxic albeit it showed least activity in other bioassays. Based on the present findings, it could be inferred that the bioassay-guided fractionation and purification of D. nigramay come up with potent bioactive drugs. % 相似文献
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There has been a debate between N. J. Mackintosh and the first author of this paper on whether the sex difference on the Progressive Matrices is zero or, at most, 1-2 IQ points in favour of either sex, as maintained by Mackintosh, or whether from the age of 15 years onwards males obtain higher average scores than females by more than 2 IQ points, as maintained by Lynn. New data relevant to this controversy are presented from Hong Kong consisting of sex differences on the standardization sample of the Advanced Progressive Matrices on 15- to 18-year-olds. The results are that males obtained a higher mean score than females of 1.6 raw score points, equivalent to an advantage of 3.2 or 4.1 IQ points, according to two alternative methods of calculation. The results provide further confirmation that in later adolescence and among adults, males obtain significantly higher mean IQs on the Progressive Matrices than females. 相似文献