Unravelling Malaria's Deadly Secret
This groundbreaking discovery laid the foundation for the methods to combat the disease that killed millions and continues to affect many. He won the Nobel prize in 1902 for it. He was the first British and the first Indian born person to win the Nobel. Tune in to hear his story.
The Rearview is a podcast where the hosts guide you on a scenic route through the history of science. Filled with fascinating anecdotes, deep archival dives, and a closer look at the quirky minds behind groundbreaking ideas.
Hosts: Jacob Koshy and Sobhana K Nair
Edited and produced by Jude Francis Weston
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India's R&D deficit: Just where are the scientists?
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The Hindu
13 hours ago
- The Hindu
Unravelling Malaria's Deadly Secret
Ross an army surgeon was born in Almora on May 13 1857, three days before the Great Indian Rebellion. On August 20, 1897, discovered the Malarial parasite in gastro-intestinal tract of a female Anopheles mosquitoes and eventually established the transmission cycle, while serving as army surgeon in India. This groundbreaking discovery laid the foundation for the methods to combat the disease that killed millions and continues to affect many. He won the Nobel prize in 1902 for it. He was the first British and the first Indian born person to win the Nobel. Tune in to hear his story. The Rearview is a podcast where the hosts guide you on a scenic route through the history of science. Filled with fascinating anecdotes, deep archival dives, and a closer look at the quirky minds behind groundbreaking ideas. Hosts: Jacob Koshy and Sobhana K Nair Edited and produced by Jude Francis Weston For more episodes of The Rearview:
The Hindu
2 days ago
- The Hindu
Pavlov's Nobel Prize-winning research on digestion and its lasting impact on physiology and neurobiology
In 1904, Russian physiologist Ivan Petrovich Pavlov was awarded the Nobel Prize in Physiology or Medicine 'in recognition of his work on the physiology of digestion, through which knowledge on vital aspects of the subject has been transformed and enlarged.' His experiments led to our understanding of how the digestive system works but also laid the conceptual foundations for one of the most influential ideas in behavioural science : the conditioned reflex. Early life and scientific beginnings Pavlov was born on September 14, 1849, in Ryazan, Russia, the eldest of ten children in the household of a village priest. Initially destined for the priesthood, he enrolled in a local theological seminary. His path changed after encountering the writings of physiologist Ivan Sechenov and naturalist, geologist -- Charles Darwin, which inspired him to pursue science. Leaving the seminary, Pavlov entered the University of Saint Petersburg in 1870 to study natural sciences, later earning a medical degree from the Imperial Military Medical Academy. After postgraduate training in Germany under prominent physiologists such as Carl Ludwig, Pavlov returned to Russia in the 1880s. By the 1890s, he was head of the Department of Physiology at the Institute of Experimental Medicine in St. Petersburg, where he began the series of experiments that would define his career. Transforming the understanding of digestion At the time, knowledge of digestion was largely based on post-mortem studies and crude animal experiments. Pavlov developed ingenious surgical methods to study the digestive organs of living animals without disrupting their normal functions. One of his key innovations was the creation of the 'Pavlov pouch' -- a small, surgically isolated section of the stomach with its own nerve and blood supply. This technique enabled continuous monitoring of gastric secretions over time. Pavlov's long-term, carefully controlled experiments revealed that the digestive process was not merely a simple chemical breakdown of food but was under intricate regulation by the nervous system. He discovered that gastric secretions could be triggered not just by food in the stomach but by stimuli such as the sight, smell, or even the sound associated with feeding. These 'psychic secretions' were evidence of a direct connection between sensory input and physiological processes. Research details and wider significance Pavlov's experimental approach was notable for its rigour, precision and reproducibility. His work bridged two worlds: the purely physical processes of the body and the influence of the mind on those processes. In studying digestive reflexes, Pavlov accidentally uncovered phenomena that would make him famous beyond physiology: the concept of the conditional (later called 'conditioned') reflex. Although not the focus of his Nobel-winning work, these observations such as a dog salivating to a metronome after repeated pairings with food, demonstrated that behaviour could be shaped by learned associations. Pavlov shared his findings widely, most notably in his 1897 work The Work of the Digestive Glands --that summarised years of findings and demonstrated how salivary and gastric glands were activated and coordinated, fundamentally reshaping physiological theory . The text laid out the experimental evidence that transformed understanding of gastrointestinal physiology. Later, in Conditioned Reflexes (1927), he detailed decades of experiments on associative learning, establishing a theoretical foundation for behaviourism. In Conditioned Reflexes and Psychiatry, he explored how his principles could be applied to understanding mental illness, famously writing, 'I am convinced that an important stage of human thought will have been reached when the physiological and the psychological, the objective and the subjective, are actually united' Beyond these, Pavlov published extensive lecture series and numerous scientific papers, many of which were later compiled into multi-volume works that continue to serve as primary references for physiologists and psychologists. Additionally, these findings later inspired entire schools of psychology, most notably behaviourism and influenced fields as varied as neuroscience, psychiatry, education and even marketing. Legacy and impact today Pavlov remained active in research for decades after receiving the Nobel Prize, expanding his studies of conditioned reflexes and their role in mental health and neurological disorders. He became a respected figure not only in Russian science but also on the international stage, known for his disciplined work ethic and methodical approach. In modern medicine, Pavlov's work remains relevant in multiple ways. His methods for studying organ function have influenced experimental design across physiology and biomedical research. His discovery of conditioned reflexes underpins behavioural therapy techniques used in treating phobias, anxiety disorders, and addictions. Concepts from his digestion research are still taught in medical curricula worldwide. Pavlov died on February 27, 1936, at the age of 86. His laboratory in St. Petersburg has been preserved as a museum, and his name has become shorthand for associative learning -- 'Pavlovian conditioning' is a term recognised far beyond scientific circles. The precision and vision of his Nobel-winning work continue to remind us that even the most fundamental bodily functions can yield profound insights into both the body and the mind.
