astronomy

Marta Irene Litter

Marta Irene Litter 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 Marta Irene Litter rather than just read about it. In short: Marta Irene Litter (born 3 August 1946) is Latin American chemist who is a professor at National University of General San Martín and the CONICET of Argentina. She is a member of The World Academy of Sciences and the Latin American Academy of Sciences.

Key takeaways

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

Reference excerpt

Marta Irene Litter (born 3 August 1946) is Latin American chemist who is a professor at National University of General San Martín and the CONICET of Argentina. She is a member of The World Academy of Sciences and the Latin American Academy of Sciences.

Early life and education Litter was an undergraduate and graduate student in Buenos Aires. She moved to the University of Arizona as a postdoctoral researcher in 1983.

Research and career Litter studies the presence and transformation of chemical species in environmental matrices, such as water, air and soil. These include the presence of arsenic in waters in Latin America, which is known to cause damage to human health. It is estimated that over 14 million people in Latin America are at risk of high concentrations of arsenic, which can give rise to skin disorders. She makes use of thermal and photochemical analytical and removal techniques. She has concentrated her research on the development of heterogenous photocalaysis. These catalysts can be used to convert ionic species to metallic solids, which allows them to be deposited across the surface of a semiconductor and permits them to be converted into a less toxic form. Three distinct mechanisms can be involved with the photocatalytic removal of metal ions from water, the reduction of photogenerated electrons, indirect reduction by intermediates and oxidative removal. Litter was appointed to The World Academy of Sciences in 2019 and the Latin American Academy of Sciences in 2020. In 2021, Litter was made the inaugural 'Academic Leader' award winner of the Latin American Women in Chemistry Awards. Later that year she was awarded the Eduardo Charreau Award. In 2023 she was granted the Platinum Konex Award as the most important chemist in Argentina.

Selected publications Litter, M (1999-11-01). "Heterogeneous photocatalysis Transition metal ions in photocatalytic systems". Applied Catalysis B: Environmental. 23 (2–3): 89–114. Bibcode:1999AppCB..23...89L. doi:10.1016/s0926-3373(99)00069-7. ISSN 0926-3373. Litter, M.I.; Navío, J.A. (1996). "Photocatalytic properties of iron-doped titania semiconductors". Journal of Photochemistry and Photobiology A: Chemistry. 98 (3): 171–181. Bibcode:1996JPPA...98..171L. doi:10.1016/1010-6030(96)04343-2. ISSN 1010-6030. Jochen Bundschuh; Marta I Litter; Faruque Parvez; et al. (29 September 2011). "One century of arsenic exposure in Latin America: a review of history and occurrence from 14 countries". Science of the Total Environment. 429: 2–35. doi:10.1016/j.scitotenv.2011.06.024. ISSN 0048-9697. PMID 21959248. Wikidata Q37940778.

References

Worked examples

Example 1 — a first encounter with Marta Irene Litter

Start with the simplest possible case. Write down what Marta Irene Litter 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 Marta Irene Litter 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 Marta Irene Litter 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 Marta Irene Litter

In research: Marta Irene Litter 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 Marta Irene Litter 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: Marta Irene Litter is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1946 births, 20th-century Argentine scientists, 20th-century Argentine women scientists, so understanding it makes those chapters shorter.
In everyday life: Look for Marta Irene Litter 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 Marta Irene Litter in 20 minutes

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

Frequently asked questions

What is Marta Irene Litter in simple terms?

Why does Marta Irene Litter 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 Marta Irene Litter?

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 Marta Irene Litter.