astronomy

OAIster

OAIster is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand OAIster rather than just read about it. In short: OAIster is an online combined bibliographic catalogue of open access material aggregated using OAI-PMH. It began at the University of Michigan in 2002 funded by a grant from the Andrew W.

Key takeaways

OAIster belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect OAIster to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of OAIster from memory before moving on to harder problems.

Reference excerpt

OAIster is an online combined bibliographic catalogue of open access material aggregated using OAI-PMH. It began at the University of Michigan in 2002 funded by a grant from the Andrew W. Mellon Foundation and with the purpose of establishing a retrieval service for publicly available digital library resources provided by the research library community. During its tenure at the University of Michigan, OAIster grew to become one of the largest aggregations of records pointing to open access collections in the world. In 2009, OCLC formed a partnership with the University of Michigan to provide continued access to open access collections aggregated in OAIster. Since OCLC began managing OAIster, it has grown to include over 30 million records contributed by over 1,500 organizations. OCLC is evolving OAIster to a model of self-service contribution for all open access digital repositories to ensure the long-term sustainability of this rich collection of open access materials. OAIster data is harvested from Open Archives Initiative (OAI)-compliant digital libraries, institutional repositories, and online journals using the self-service WorldCat Digital Collection Gateway.

Access OAIster.worldcat.org is a freely accessible OCLC site for searching the millions of OAIster records alone. The records will continue to be indexed in OCLC's WorldCat, and will be integrated in WorldCat.org search results along with records from thousands of libraries worldwide. They also will continue to be included in WorldCat Local and WorldCat Local "quick start" search results, and will continue to be available via other OCLC Discovery services.

See also List of academic databases and search engines

References

External links The OAIster database, OCLC How to contribute content to OAIster, OCLC See what organizations contribute to OAIster, OCLC

Worked examples

Example 1 — a first encounter with OAIster

Start with the simplest possible case. Write down what OAIster claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to OAIster before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about OAIster ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of OAIster

In research: OAIster appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses OAIster in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: OAIster is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aggregation-based digital libraries, American digital libraries, Bibliographic databases and indexes, so understanding it makes those chapters shorter.
In everyday life: Look for OAIster outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study OAIster in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what OAIster means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain OAIster out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is OAIster in simple terms?

OAIster is an online combined bibliographic catalogue of open access material aggregated using OAI-PMH. It began at the University of Michigan in 2002 funded by a grant from the Andrew W.

Why does OAIster matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study OAIster?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on OAIster.