science

Sheik Umar Khan

Sheik Umar Khan is a science 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 Sheik Umar Khan rather than just read about it. In short: Sheik Umar Khan (6 March 1975 – 29 July 2014) was the chief Sierra Leonean doctor attempting to curb the country's Ebola outbreak in 2014. The virologist is credited with treating over a hundred patients before succumbing to the virus himself.

Key takeaways

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

Reference excerpt

Sheik Umar Khan (6 March 1975 – 29 July 2014) was the chief Sierra Leonean doctor attempting to curb the country's Ebola outbreak in 2014. The virologist is credited with treating over a hundred patients before succumbing to the virus himself. He was recognized as a "national hero" by Sierra Leone's Health Ministry. Khan had long worked with Lassa fever, a disease that kills over 5,000 a year in Africa. He had expanded his clinic to accept Ebola patients. Sierra Leone's president, Ernest Bai Koroma, celebrated Khan as a "national hero". He had a habit of hugging the cured Ebola patients that were leaving his ward, to lift their spirits. Graduated from University of Sierra Leone’s College of Medicine and Allied Health Sciences in 2001 and finished his internship in 2004, he became new chief physician of the Lassa Fever Research Program at Kenema Government Hospital in 2005 after his predecessor, Dr. Aniru Conteh, died from Lassa fever after a needlestick accident. Khan was a resident at the Korle-Bu Teaching Hospital from 2010 to 2013.

Death Khan was very meticulous in donning personal protective equipment as he treated patients. Believing the virus unable to be transmitted in an airborne fashion, he worked fearlessly with Ebola virus patients. Despite observing recommended protocols, Khan was infected by the virus and died on 29 July 2014 in a facility run by Medecins Sans Frontieres. He was not offered a dose of the experimental drug ZMapp though one was available. Sierra Leonean president Ernest Bai Koroma had been due to visit his treatment center the following week.

Awards and honors On 18 December 2014, Khan was named one of Nature's 10 "people who mattered" of 2014, along with Maryam Mirzakhani, Radhika Nagpal, and others. In 2019, asteroid 6781 Sheikhumarrkhan, discovered by American astronomer Henry E. Holt at Palomar Observatory in 1990, was named in his memory. The official naming citation was published by the Minor Planet Center on 27 August 2019 (M.P.C. 115893) and revised on 25 March 2021 (M.P.C. 128947).

References

Worked examples

Example 1 — a first encounter with Sheik Umar Khan

Start with the simplest possible case. Write down what Sheik Umar Khan claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Sheik Umar Khan 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 Sheik Umar Khan 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 Sheik Umar Khan

In research: Sheik Umar Khan appears in science 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 Sheik Umar Khan 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: Sheik Umar Khan is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1975 births, 2014 deaths, Deaths from Ebola, so understanding it makes those chapters shorter.
In everyday life: Look for Sheik Umar Khan 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 Sheik Umar Khan in 20 minutes

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

Frequently asked questions

What is Sheik Umar Khan in simple terms?

Why does Sheik Umar Khan matter?

Because it connects several science 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 Sheik Umar Khan?

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 Sheik Umar Khan.