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This website contains over 100,000 pages of searchable text and 214,000 electronic images, at least one exemplar of all known Darwin publications, reproduced to the highest scholarly standards, both as searchable text and electronic images of the originals. The majority of these have been edited and annotated here for the first time with more than 4,800 original editorial notes.
The fully functioning database now already covers more than 8500 Illustrators active in natural history, medicine, technology and various sciences in more than 75 countries roughly between 1450 and 1950.
DEEMY is an information system for determination and characterisation of ectomycorrhizae. The goal is to offer a online database system for multiple usage and therewith dissemination of expert knowledge especially by providing public access to database generated identification keys, natural language descriptions and illustrations of ectomycorrhizae
DEST provides a high quality training that prepares students for future taxonomic careers.
This database contains species descriptions, collection localities and colour and B&W drawings of excellent quality.
The facsimiles presented here incorporate beautiful drawings (including colour lithographs) of many type specimens as well as early observations of sexual reproduction.
The facsimiles presented here incorporate beautiful drawings (including colour lithographs) of many type specimens as well as early observations of sexual reproduction.
19th and early 20th century titles on diatoms and algae in full text selected from the colletions of The LuEsther T. Mertz Library.
All dissertations, theses and published material based on theses cataloged by OCLC members, including all subjects.
New York Botanical Garden authorized users only.
The main focus of the DNA Bank Network is to enhance taxonomic, systematic, genetic, conservation and evolutionary studies by providing: • at-cost availability of non-human DNA material, • high quality, long-term storage of DNA material on which molecular studies have been performed, so that results can be verified, extended, and complemented, • complete on-line documentation of each sample, including the provenance of the original material, the place of voucher deposit, information about DNA quality and extraction methodology, digital images of vouchers and links to published molecular data if available.
The directory is open to all publishers who publish academic, peer reviewed books in Open Access and should contain as many books as possible, provided that these publications are in Open Access and meet academic standards.
The aim of the DOAJ is to increase the visibility and ease of use of open access scientific and scholarly journals, thereby promoting their increased usage and impact. The DOAJ aims to be comprehensive and cover all open access scientific and scholarly journals that use a quality control system to guarantee the content. In short, the DOAJ aims to be the one-stop shop for users of open access journals.
DocuBase is a set of services that allows users to store, organize and maintain network-accessible distributed document resources. Examples of such resources are on-line readers for courses, collections of documents related to some topic, collections of personal documents, technical report series, and collections of documents mantained by a working group.
Access journal articles and accepted manuscripts resulting from DOE research funding
Dryad is an international repository of data underlying peer-reviewed articles in the basic and applied biosciences. Dryad enables scientists to validate published findings, explore new analysis methodologies, repurpose data for research questions unanticipated by the original authors, and perform synthetic studies. Dryad is governed by a consortium of journals that collaboratively promote data archiving and ensure the sustainability of the repository.