![]() ![]() The study population, one person from each office on floors 3 to 8, consisted of 893 workers, 493 males (49.2%) and 454 females (50.8%). Data on respiratory infections and the relevant personal and environmental determinants were collected in a self-administered questionnaire (response rate 71.0%). The effect of sharing an office with one or more colleagues on the risk of the common cold was studied in a modern, mechanically ventilated, 8 story office building in central Helsinki. Despite its long-established ubiquity, little is yet certain about the determinants of indoor environment in spreading of the infection, and even less about the role of indoor air quality as a mediator. The common cold persists as a major economic and public health problem worldwide. Official site does not provide any info about changes in this version.Shared office space and the risk of the common cold. Play with realistic 3D-models of your favorite books.Īlfa is the best Calibre alternative for those who like comfort.Īccess you library in local network even from mobile devices. Update books from Amazon, Google and other sites.Īll popular formats are supported: EPUB, MOBI, FB2, PDF, AZW.Ĭonvert ebooks for your Kindle, iPhone or Android reader. Scan your computer for ebooks, parse metadata.īuilt-in ebook reader supports all popular e-book formats. Add tags and custom fields.Ĭustomize look and feel of your e-Library. Get your paper, electronic and audio-books in single e-library.Ĭatalog any book data. ![]() Alfa eBooks Manager is the top choice for book lovers, collectors, students, academicians and business libraries. Alfa is a PC software that allows to organize your electronic and paper books in a single e-Library. Alfa eBooks Manager Web v8.6.14.1 | 59.54 MB |Īlfa eBooks Manager - The most powerful and easy-to-use Book Organizer. ![]()
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