biology

Katherine Hajjar

Katherine Hajjar is a biology 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 Katherine Hajjar rather than just read about it. In short: Katherine Amberson Hajjar is an American pediatrician, cell biologist, and academic administrator. She is the senior associate dean for faculty at Weill Cornell Medicine.

Key takeaways

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

Reference excerpt

Katherine Amberson Hajjar is an American pediatrician, cell biologist, and academic administrator. She is the senior associate dean for faculty at Weill Cornell Medicine.

Life Hajjar earned a bachelor's degree from Smith College in 1974. She completed a M.D. from the Johns Hopkins School of Medicine in 1978. She completed a pediatric residency at Children's Hospital of Pittsburgh from 1978 to 1981. She was chief pediatric resident from 1981 to 1982. She conducted a pediatric hematology-oncology fellowship from 1982 to 1984. During this time period, she completed cellular biology research under Vann Bennett. She joined Weill Cornell Medicine's department of pediatrics and medicine in 1984 where she researched under Ralph Nachman. From 1997 to 2002, she was the Stavros Niarchos Professor of Pediatrics. She chaired the department of cell and developmental biology from 2002 to 2014. She became the Brine Family Professor of Cell and Developmental Biology in 2005. She discovered the cell surface receptor for tissue plasminogen activator (annexin A2). Hajjar is an elected member of the Society for Pediatric Research, American Pediatric Society, American Society of Clinical Investigation, Association of American Physicians, American Clinical and Climatological Association, and the American Association for the Advancement of Science. She is the senior associate dean for faculty. Hajjar is married to David Hajjar.

References

Worked examples

Example 1 — a first encounter with Katherine Hajjar

Start with the simplest possible case. Write down what Katherine Hajjar claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Katherine Hajjar 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 Katherine Hajjar 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 Katherine Hajjar

In research: Katherine Hajjar appears in biology 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 Katherine Hajjar 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: Katherine Hajjar is common in secondary-school and first-year university syllabi. It links to neighbouring topics 21st-century American biologists, 21st-century American medical doctors, 21st-century American women biologists, so understanding it makes those chapters shorter.
In everyday life: Look for Katherine Hajjar 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Katherine Hajjar in 20 minutes

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

Frequently asked questions

What is Katherine Hajjar in simple terms?

Katherine Amberson Hajjar is an American pediatrician, cell biologist, and academic administrator. She is the senior associate dean for faculty at Weill Cornell Medicine.

Why does Katherine Hajjar matter?

Because it connects several biology 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 Katherine Hajjar?

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 Katherine Hajjar.