chemistry

Regina G. Ziegler

Regina G. Ziegler is a chemistry 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 Regina G. Ziegler rather than just read about it. In short: Regina Gale Ziegler is an American biochemist and nutritional epidemiologist who researched dietary, nutritional, anthropometric, and hormonal determinants of cancer risk. She was a senior investigator in the National Cancer Institute's epidemiology and biostatistics program.

Key takeaways

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

Reference excerpt

Regina Gale Ziegler is an American biochemist and nutritional epidemiologist who researched dietary, nutritional, anthropometric, and hormonal determinants of cancer risk. She was a senior investigator in the National Cancer Institute's epidemiology and biostatistics program.

Life Ziegler received a B.A. from Swarthmore College, going on to complete a Ph.D. in biochemistry from the University of California, Berkeley. Her 1971 dissertation was titled, Affinity labelling lysozyme with a carbene. She earned a M.P.H. from Harvard T.H. Chan School of Public Health. After graduate school, she taught international nutrition and global food resources courses at Yale University, Harvard University, and Tufts University. Ziegler joined the National Cancer Institute (NCI) in 1979, was tenured in 1987, and has served most recently as a senior investigator in the epidemiology and biostatistics program. Ziegler’s research has focused broadly on dietary, nutritional, anthropometric, and hormonal determinants of cancer risk. Her early work helped characterize the role of vegetables and fruits, individual carotenoids, folate and one-carbon metabolism in cancer etiology. In addition, she has conducted a number of breast cancer studies with emphasis on anthropometry, diet and endogenous hormones and growth factors. She helped design and direct a large, population-based case-control study of breast cancer in Asian-American women to elucidate the modifiable exposures, related to lifestyle and/or environment, that explained the 6-fold difference in breast cancer incidence between Asia and the West. Ziegler collaboratively developed an international pooled analysis of circulating vitamin D concentrations in relation to risk of colorectal and breast cancer. Ziegler applied her training in chemistry and biochemistry to the development of new and improved methods for measuring various hormones and nutrients in epidemiologic studies. She played a critical role in the successful development of a sensitive assay for assessment of estrogen metabolites and a validated assay for concurrent measurement of the major steroid hormones. Ziegler is a fellow of the American Society for Nutrition and helped establish its nutritional epidemiology research interest section. Ziegler retired in October 2018.

References

Illustrations

Worked examples

Example 1 — a first encounter with Regina G. Ziegler

Start with the simplest possible case. Write down what Regina G. Ziegler claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, 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 Regina G. Ziegler 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 Regina G. Ziegler 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 Regina G. Ziegler

In research: Regina G. Ziegler appears in chemistry 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 Regina G. Ziegler 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: Regina G. Ziegler is common in secondary-school and first-year university syllabi. It links to neighbouring topics 20th-century American biochemists, 20th-century American women biochemists, 21st-century American biochemists, so understanding it makes those chapters shorter.
In everyday life: Look for Regina G. Ziegler 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 Regina G. Ziegler in 20 minutes

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

Frequently asked questions

What is Regina G. Ziegler in simple terms?

Why does Regina G. Ziegler matter?

Because it connects several chemistry 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 Regina G. Ziegler?

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 Regina G. Ziegler.