pp 1647-1649 December 2020 Editorial

Editorial

pp 1652-1652 December 2020 Science Smiles

Science Smiles

pp 1653-1657 December 2020 Article-in-a-Box

Nicolaas Bloembergen (1920–2017): Physicist, Father of Nonlinear Optics

Debabrata Goswami

pp 1659-1668 December 2020 General Article

Compact Objects and Black Holes: 2020 Nobel Prize in Physics

J S Bagla

pp 1669-1680 December 2020 General Article

CRISPR/Cas9 System: 2020 Nobel Prize in Chemistry

Rajesh Ramachandran

pp 1681-1687 December 2020 General Article

Discovery of Hepatitis C Virus: 2020 Nobel Prize in Physiology or Medicine

Aunji Pradhan Sachin Kumar Tripathi Saumitra Das

pp 1689-1703 December 2020 General Article

Magic Vertex-Labeling of a Half-Cube: An Enumeration Puzzle

Jyotirmoy Sarkar

pp 1705-1720 December 2020 General Article

The Idea of a Lax Pair–Part I: Conserved Quantities for a Dynamical System

Govind Krishnaswami T R Vishnu

pp 1721-1730 December 2020 General Article

Chua’s Circuit:A Paradigm of Chaotic Systems

Satya Prakash V

pp 1731-1740 December 2020 General Article

The Physical Meaning of Entropy–1: Effect of Change in Volume on Entropy

Nirupam Rohatgi

pp 1741-1752 December 2020 General Article

Neuropeptides: The Slower Neurotransmitters

Umer Saleem Bhat Kavita Babu

pp 1753-1761 December 2020 General Article

Polio Endgame: How India Beat the Monster

Anuja Madhekar

pp 1763-1776 December 2020 General Article

Nature of Science: The Evolutional, Hierarchical, and Debatable

Shweta Tanwar

pp 1777-1777 December 2020 Information and Announcements

Applications Invited, Homi Bhabha Centre for 1777 Science Education, TIFR

pp 1778-1778 December 2020 Birds in the Backyard

Painted Stork (Mycteria leucocephala)