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25 results for “Postulation”
Modelling a folksonomy with the postulational approach to facet analysis
<p>An in-depth study of faceted classification theory, as presented by Ranganathan and further developed by Brian Vickery and the Classification Research Group, led to the creation of a methodology based on the Postulate of Fundamental Categories, the Postulate of Basic Facet and the Postulate of Isolate Facet. This methodology was then used to analyze the facets of a dataset consisting of over 107,000 instances of 1,275 unique tags representing 76 popular non-fiction history books collected from the LibraryThing folksonomy (see http://www.librarything.com/). Preliminary results of the facet analysis show the manually-produced, two-faceted classification models in the dataset, one representing the universe of books, and the other representing the universe of subjects within the universe of books. The model representing the universe of books is considered to be complete, whereas the model representing the universe of books is then compared to other models of books, including the BIBO ontology and the FRBR model. Finally, the models are discussed in terms of their confirmation or violation of Ranganathan’s seven Canons of Classification, upon which the postulates are based.</p>
Non-invasive prediction of NAFLD severity: a comprehensive, independent validation of previously postulate serum microRNA biomarkers
GEO Series GSE114923. Homo sapiens. 8 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Fig. 3 Some postulated relationships among the five main metazoan clades. a in Higher-level metazoan relationships: recent progress and remaining questions
Fig. 3 Some postulated relationships among the five main metazoan clades. a Traditional hypothesis based on morphology, with sponges as sister group to other metazoans (e.g. Nielsen 2001). b Hypothesis based on phylogenomic analyses, with ctenophores as sister group to all other metazoans (Dunn et al. 2008; Hejnol et al. 2009). c
Figure 36. Character 74 and its postulated states. A3–A5 in Morphology-based phylogenetic analysis and classification of the family Rhinocryptidae (Aves: Passeriformes)
Figure 36. Character 74 and its postulated states. A3–A5 elements, dorsal surface, configuration: A, complete, not reduced – 74.0; B, A3 vestigial, A4 and A5 reduced – 74.1; C, A3 vestigial, A4 and A5 absent – 74.2. Stippled areas are cartilaginous tissue, non-stippled areas are calcified structures. A1/B1 elements are indicated. Syringes of (A) Myornis senilis (QCAZ 3724), (B) Eleoscytalopus indigoticus (MCP 2044), and (C) Merulaxis ater (MCP 2001) in dorsal view. Scale bars = 2 mm.
Fig. 22. Postulated biogenetic pathway for ochraceopones A-E in Recent studies on terpenoids in Aspergillus fungi: Chemical diversity, biosynthesis, and bioactivity
Fig. 22. Postulated biogenetic pathway for ochraceopones A-E (234–238).
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.