astronomy

Sami Ahmed Khalid

Sami Ahmed Khalid 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 Sami Ahmed Khalid rather than just read about it. In short: Sami Ahmed Khalid FAAS FTWAS (Arabic: سامى أحمد خالد) is a Sudanese pharmacognosy professor at the University of Science and Technology. Education and research Khalid was born in Omdurman, Sudan.

Key takeaways

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

Reference excerpt

Sami Ahmed Khalid FAAS FTWAS (Arabic: سامى أحمد خالد) is a Sudanese pharmacognosy professor at the University of Science and Technology.

Education and research Khalid was born in Omdurman, Sudan. He completed a bachelor's and master's degree in pharmacognosy from the University of Szeged between 1968 and 1974. He returned to Sudan and joined the Department of Pharmacognosy at the University of Khartoum in 1977 as a teaching assistant. Khalid started his Doctor of Philosophy in 1979 at the Department of Pharmaceutical Chemistry, University of Strathclyde, and finished in 1982. He then again returned to Sudan and joined the Department of Pharmacognosy at the University of Khartoum as an assistant professor. He became an associate professor in 1985 and was awarded the Alexander von Humboldt fellowship from the Department of Structural Chemistry, Ruhr University Bochum, in 1987. He later returned to Sudan to become a professor at the University of Khartoum in 1992. Khalid became the dean of the Faculty of Pharmacy between 1992 and 1994. As of November 2022, Khalid is the dean of the Faculty of Pharmacy at the University of Science and Technology (Sudan). Khalid is a scientific adviser for the International Foundation for Science (IFS).

Awards and honours Khaid was elected a fellow of the World Health Organization, a fellow of the African Academy of Sciences (FAAS) in 2014, and a fellow of The Word Academy of Sciences (FTWAS) in 2018.

Selected publications

Thomas Jürgen Schmidt, Sami A Khalid, AJ Romanha, Tânia Maria de Almeida Alves, Maique Weber Biavatti, Reto Brun, FB Da Costa, Solange Lisboa de Castro, Vitor Francisco Ferreira, MVG De Lacerda, JH Lago, LL Leon, Norberto Peporine Lopes, RC das Neves Amorim, Michael Niehues, Ifedayo Victor Ogungbe, Adrian Martin Pohlit, Marcus Tullius Scotti, William N Setzer, Soeiro M de NC, Mário Steindel, Andre Gustavo Tempone (2012). The potential of secondary metabolites from plants as drugs or leads against protozoan neglected diseases-part II, Curr. Med. Chem, 19:14 2128–2175. Sami A Khalid, Helmut Duddeck, Manuel Gonzalez-Sierra (1989/9). Isolation and characterization of an antimalarial agent of the neem tree Azadirachta indica. Journal of Natural Products, 52:5 922–927. Sami A Khalid, Asim Farouk, Timothy G Geary, James B Jensen (1986/2/1). Potential antimalarial candidates from African plants: an in vitro approach using Plasmodium falciparum. Journal of Ethnopharmacology, 15:2 201–209. Ahmed El Tahir, Gwiria MH Satti, Sami A Khalid (1999/3/1). Antiplasmodial activity of selected Sudanese medicinal plants with emphasis on Maytenus senegalensis (Lam.) Exell. Journal of Ethnopharmacology, 64:3 227–233. Ahmed El‐Tahir, Gwiria MH Satti, Sami A Khalid (1999/9). Antiplasmodial activity of selected Sudanese medicinal plants with emphasis onAcacia nilotica. Phytotherapy Research: An International Journal Devoted to Pharmacological and Toxicological Evaluation of Natural Product Derivatives, 13:6 474–478.

References

Worked examples

Example 1 — a first encounter with Sami Ahmed Khalid

Start with the simplest possible case. Write down what Sami Ahmed Khalid 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 Sami Ahmed Khalid 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 Sami Ahmed Khalid 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 Sami Ahmed Khalid

In research: Sami Ahmed Khalid 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 Sami Ahmed Khalid 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: Sami Ahmed Khalid is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fellows of The World Academy of Sciences, Fellows of the African Academy of Sciences, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for Sami Ahmed Khalid 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 Sami Ahmed Khalid in 20 minutes

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

Frequently asked questions

What is Sami Ahmed Khalid in simple terms?

Sami Ahmed Khalid FAAS FTWAS (Arabic: سامى أحمد خالد) is a Sudanese pharmacognosy professor at the University of Science and Technology. Education and research Khalid was born in Omdurman, Sudan.

Why does Sami Ahmed Khalid 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 Sami Ahmed Khalid?

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 Sami Ahmed Khalid.