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astronomy

K. L. Sebastian

K. L. Sebastian 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 K. L. Sebastian rather than just read about it. In short: Kizhakeyil Lukose Sebastian is a professor of chemistry at the department of Inorganic and Physical Chemistry of Indian Institute of Technology, Palakkad, India. Prior to becoming a professor at IIT Palakkad, he was a professor of chemistry at the department of Inorganic and Physical Chemistry at Indian Institute of Science, Bangalore, for about 20 years.

Key takeaways

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

Reference excerpt

Kizhakeyil Lukose Sebastian is a professor of chemistry at the department of Inorganic and Physical Chemistry of Indian Institute of Technology, Palakkad, India. Prior to becoming a professor at IIT Palakkad, he was a professor of chemistry at the department of Inorganic and Physical Chemistry at Indian Institute of Science, Bangalore, for about 20 years.

Education He did his Bachelor of Science (special degree) from the University of Kerala and his Master of Science from the University of Calicut. He stood first in the university when he completed his undergraduate and post graduate studies. In 1976 he received his PhD in chemistry from IISc.

Career After completing his PhD Prof. Sebastian joined the Calicut University as Reader and Lecturer. He started working as a Professor in the Cochin University of Science and Technology in 1984. He has been Professor of Physical and Inorganic Chemistry at the Indian Institute of Science ever since 1996. He is one of the leading theoretical chemists of India working on the applications of quantum mechanics and statistical mechanics in chemistry and chemical physics. The topics studied include molecular devices, nanotechnology and surfaces, molecular ratchets, equilibrium and non-equilibrium statistical mechanics of polymers, biophysical chemistry and chemical dynamics. Prof. Sebastian has authored more than 110 papers on various aspects of theoretical chemistry, chemical physics and polymer physics. He is also a member of the editorial boards of several reputed scientific journals published by institutions such as the Indian Academy of Sciences. Apart from his research work he also teaches at various levels, including undergraduate students.

Awards and honors Fellow of Indian Academy of Sciences, the Indian National Science Academy. Shanti Swarup Bhatnagar Prize for Science and Technology in Chemical Science by the Government of India. Swadeshi Sastra Puraskar (1996). J. C. Bose National Fellowship by the Department of Science & Technology (DST) (2008-2013). Amrut Modi Chair Professor in the Chemical Sciences Division of Indian Institute of Science (2008-2011). His research topics include path integral representation of Fractional Brownian motion, ring closing opening dynamics in polymers, first passage time calculation in phase space, energy transfer between molecule and graphene, quantum coherence etc. He introduced what is known as the kink mechanism for the translocation of long chain molecule through a nano-pore. In other words, Kramers problem for the long chain molecule. He also developed the time dependent version of the coupled cluster theory (CCT) and applied to a problem of ion neutralization scattered from a surface of a metal. He has also proposed an analytical model to elucidate the mechanism of protein transport across the nuclear pore complex. In recent years he got interested in coherences in photosystems and quantum biology in general. Along with his PhD student, he proposed an almost analytical method to analyze the time evolution of the FMO complex. More recently he has started working on Levy flights which involves long jumps and on the dynamics of a tracer in a heterogeneous medium, where diffusivity is a fluctuating quantity.

References

External links K. L. Sebastian, Understanding chemical phenomena using Statistical and Quantum Mechanics Archived 19 April 2008 at the Wayback Machine K. L. Sebastian, The Development of the Concept of Atoms and Molecules

Worked examples

Example 1 — a first encounter with K. L. Sebastian

Start with the simplest possible case. Write down what K. L. Sebastian 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 K. L. Sebastian 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 K. L. Sebastian 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 K. L. Sebastian

In research
K. L. Sebastian 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 K. L. Sebastian 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
K. L. Sebastian is common in secondary-school and first-year university syllabi. It links to neighbouring topics Academic staff of the Indian Institute of Science, Indian Institute of Science alumni, Living people, so understanding it makes those chapters shorter.
In everyday life
Look for K. L. Sebastian 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 K. L. Sebastian in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what K. L. Sebastian means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain K. L. Sebastian out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is K. L. Sebastian in simple terms?

Kizhakeyil Lukose Sebastian is a professor of chemistry at the department of Inorganic and Physical Chemistry of Indian Institute of Technology, Palakkad, India. Prior to becoming a professor at IIT Palakkad, he was a professor of chemistry at the department of Inorganic and Physical Chemistry at I…

Why does K. L. Sebastian 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 K. L. Sebastian?

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 K. L. Sebastian.

Tags

  • Academic staff of the Indian Institute of Science
  • Indian Institute of Science alumni
  • Living people
  • Recipients of the Shanti Swarup Bhatnagar Award in Chemical Science
  • Scientists from Bengaluru
  • Scientists from Kerala
  • University of Calicut alumni
  • University of Kerala alumni

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