astronomy

Paul Barbara

Paul Barbara 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 Paul Barbara rather than just read about it. In short: Paul Frank Barbara (April 24, 1953 – October 31, 2010) was an American chemist. His research interests focused on the understanding of the molecular structure and dynamics of complex chemical systems, including organic semi-conductors for photovoltaic applications, proton and electron transfer reactions, the hydrated electron and intermediates in the reverse transcription mechanism of HIV-1.

Key takeaways

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

Reference excerpt

Paul Frank Barbara (April 24, 1953 – October 31, 2010) was an American chemist. His research interests focused on the understanding of the molecular structure and dynamics of complex chemical systems, including organic semi-conductors for photovoltaic applications, proton and electron transfer reactions, the hydrated electron and intermediates in the reverse transcription mechanism of HIV-1. His laboratory developed and applied novel ultrafast and single molecule spectroscopies to study the complexity of these chemical system. Paul Barbara was a full professor at the University of Texas at Austin. He held the R.J.V. Johnson-Welch Endowed Chair in the department of chemistry and biochemistry at UT-Austin. He was also Director of UT-Austin's Center for Nano- and Molecular Science and Technology, and Senior Editor for Accounts of Chemical Research.

Education Paul Barbara received his bachelor's degree in 1974 at Hofstra University and completed his doctoral work in 1978 at Brown University under the supervision of Ronald G. Lawler. From 1978 to 1980 he carried out postdoctoral work at Bell Laboratories with Peter M. Rentzepis and Louis E. Brus. He joined the faculty of the department of chemistry at the University of Minnesota in 1980, achieving the rank of full professor in 1990. He moved to the University of Texas at Austin in 1998, as full professor in the department of chemistry and biochemistry until his death.

Awards Paul Barbara was named 3M-Alumni Distinguished Professor of Chemistry in 1995, elected a Fellow of the American Academy of Arts and Sciences in 1999. a Fellow of the American Physical Society in 1993, a fellow of the American Association for Advancement of Science in 2004 and a member of the United States National Academy of Sciences in 2006. Other awards include an Alfred P. Sloan Fellowship in 1983–85, a Presidential Young Investigator Award in 1984–89, a NSF Creativity Award in 1998, Inter-American Photochemical Society Award in 2002 and the 2009 E. Bright Wilson Award in Spectroscopy in 2008 from The American Chemical Society. The Barbara research group is nicknamed the ‘Barbarians’.

Death Paul Barbara died on October 31, 2010, two weeks after a cardiac arrest sent him into a coma. A memorial service was held on December 12, 2010, on UT campus to celebrate the life of Paul F. Barbara. He is survived by his wife Sharon, daughter Juliet and son Jason.

Sources Profile of Paul Barbara-PNAS Paul F. Barbara's Group Homepage C&E News E. Bright Wilson Award In Spectroscopy in 2009

References

External links Department of Chemistry and Biochemistry at UT-Austin UT-Austin’s Center for Nano- and Molecular Science and Technology

Worked examples

Example 1 — a first encounter with Paul Barbara

Start with the simplest possible case. Write down what Paul Barbara 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 Paul Barbara 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 Paul Barbara 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 Paul Barbara

In research: Paul Barbara 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 Paul Barbara 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: Paul Barbara is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1953 births, 2010 deaths, American chemists, so understanding it makes those chapters shorter.
In everyday life: Look for Paul Barbara 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 Paul Barbara in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Paul Barbara 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 Paul Barbara out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Paul Barbara in simple terms?

Why does Paul Barbara 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 Paul Barbara?

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 Paul Barbara.