Xem 1-6 trên 6 kết quả Permanence properties
  • A questionnaire was applied including variables social, demographic, occupational, clinical, toxicological and tomatoes consumption habits. The pilot study was carried out on 10% of the total of the sample, although they did not make part of the research. Following the criteria of inclusion, all laborers engaged in tomato planting entered into the study, provided that they were permanent residents in the community, who had used OF, C and OC pesticides at least during the six months previous to the study, and also who volunteered to participate in the study....

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  • Abstract To overcome loss of stem-like properties and spontaneous differentiation those hinder the expansion and application of human mesenchymal stem cells (hMSCs), we have clonally isolated permanent and stable human MSC lines by ectopic overexpression of primary cell cultures of hMSCs with HPV 16 E6E7 and human telomerase reverse transcriptase (hTERT) genes. These cells were found to have a differentiation potential far beyond the ordinary hMSCs. They expressed trophoectoderm and germline specific markers upon differentiation with BMP4 and retinoic acid, respectively.

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  • This is a corrected version of the first (and only) edition of the text, published by in 1984 by Springer-Verlag as Grundlehren der mathematischen Wissenschaften 278. It is available only on the internet, at the locations given on the title page. All known errors have been corrected. The first chapter has been partially revised and supplemented with additional material. The later chapters are essentially as they were in the first edition. Some additional references have been added as well (discussed below).

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  • Lecture Electromechanical energy conversion - Magnetic circuits and magnetic materials presents the following content: Introduction to magnetic circuits; flux linkage, inductance, and energy; properties of magnetic materials; AC excitation; permanent magnets; application of permanent magnet materials.

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  • Electrical machines are almost entirely used in producing electricity, and there are very few electricity-producing processes where rotating machines are not used. In such processes, at least auxiliary motors are usually needed. In distributed energy systems, new machine types play a considerable role: for instance, the era of permanent magnet machines has now commenced. About half of all electricity produced globally is used in electric motors, and the share of accurately controlled motor drives applications is increasing.

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  • Real assets definitely play a significant part in the portfolios of both private and institutional investors. The magnitude of the capital and current investments in real assets can, however, be only roughly estimated as investors – as described – can choose different forms of investment, the market volume of which is often not transparent. The purpose of the investment is also not always clear. For instance, an owner-occupied property is certainly a real asset investment. However, the house owner does not necessarily purchase or build a home with the aim of making a profit.

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