astronomy

Joanne M. Holden

Joanne M. Holden 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 Joanne M. Holden rather than just read about it. In short: Joanne Merson Holden (September 5, 1946 – October 2, 2014) was an American nutritionist known for her food composition research. She served as head of the USDA Agricultural Research Service's Nutrient Data Laboratory and at the time of her death was ranked among the top 1% most cited researchers in agricultural science.

Key takeaways

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

Reference excerpt

Joanne Merson Holden (September 5, 1946 – October 2, 2014) was an American nutritionist known for her food composition research. She served as head of the USDA Agricultural Research Service's Nutrient Data Laboratory and at the time of her death was ranked among the top 1% most cited researchers in agricultural science.

Education Joanne Holden received her Bachelor of Science degree in Foods and Nutrition from the University of Delaware in Newark, Delaware before going on to earn her Master of Science degree from the University of Maryland in 1974.

Career & contributions Over the course of her career, Holden published over 100 papers on food composition data production, collection, management, and documentation and nutrition analysis. Holden and her colleagues from the Agricultural Research Service's Nutrient Data Laboratory published 31 papers in the JFCA (Journal of Food Composition and Analysis). Holden was listed as an ISI Highly Cited researcher in 2014, meaning that she ranked among the top 1% most cited researchers in the field of agricultural science. Her work contributed to the USDA National Nutrient Database for Standard Reference (also known as SR24), which is the standard source for food composition data in the U.S. for public and private sector uses. Among other projects, this work included significant updates to the nutrient information for fresh beef and pork products in 2012, as changes and improvements in animal husbandry practices and industry procedures over time affect nutrient content. In addition, Holden furthered global food science education by serving as co-director (1994 to at least 2007) of the International Postgraduate Course for the Production, Management, and Use of Food Composition Data, a project of the UN Food and Agriculture Organization's International Network of Food Data Systems (INFOODS).

References

External links USDA ARS Nutrient Data Laboratory USDA ARS: Joanne M. Holden publications

Illustrations

Worked examples

Example 1 — a first encounter with Joanne M. Holden

Start with the simplest possible case. Write down what Joanne M. Holden 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 Joanne M. Holden 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 Joanne M. Holden 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 Joanne M. Holden

In research: Joanne M. Holden 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 Joanne M. Holden 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: Joanne M. Holden is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1946 births, 2014 deaths, 20th-century American scientists, so understanding it makes those chapters shorter.
In everyday life: Look for Joanne M. Holden 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 Joanne M. Holden in 20 minutes

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

Frequently asked questions

What is Joanne M. Holden in simple terms?

Why does Joanne M. Holden 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 Joanne M. Holden?

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 Joanne M. Holden.