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Science Sharings for 12 May 2021

Note: 12 May is an online CCA session

Session 1: 3 concurrent sessions

Science Sharing A: Parasite Infections in Humans

When one hears the word “parasite”, mites, bedbugs or even the 2019 Oscar-winning film directed by Bong Joon-Ho might usually come to mind. Yet not everyone may know that parasites can actually cause infections to us humans too! Infections of humans caused by parasites number in the billions, ranging from relatively innocuous to fatal, and diseases caused by these parasites constitute major human health problems throughout the world. While there are over 400 human parasite species found so far, for our 20-min presentation, we will only be presenting a handful of very clinically important parasites and going through their special features and clinical manifestations.
Viewer discretion is advised ─ this science sharing is not for the weak! 😉

Science Sharing B: A Brief Introduction to Lagrangian Mechanics

Lagrangian mechanics was developed by the French physicist Joseph-Louis Lagrange in 1788. Unlike classical Newtonian mechanics which uses force and momentum to describe motions of the objects in a system, Lagrangian mechanics uses the energy of a system. The Lagrangian function is defined as the kinetic energy, the energy of motion, minus the potential energy, the energy of position. The function characterises the state of a system, and by doing mathematical calculations with the Lagrangian function, one can solve the motion of the objects without delving into complicated analysis of the various forces. The advantage of using Lagrangian mechanics over Newtonian mechanics is that it reduces physics problems into mathematical equations. However, it also has its constraints on the type of systems it can solve. During the science sharing, we plan to present a brief introduction to the concept of Lagrangian mechanics, how it can be used to solve physics problems, as well as simple examples of its applications.

Science Sharing C: Food and exercise – a potentially deadly combo

Exercise-induced anaphylaxis (EIA) is a condition in which physical activities drive an extreme allergic response. Due to its rarity as a condition, little research has been done on this topic. 

Food-dependent exercise-induced anaphylaxis (FDEIA) is an even less common form of EIA, which is an allergic reaction that develops during exercise, when a specific food, such as wheat or seafood, is ingested prior to the exercise. Typical symptoms of the disease include flushing, urticaria, angioedema, respiratory symptoms, gastrointestinal symptoms, hypotension, and collapse during or after exercise. The anaphylactic reaction can be life-threatening, and might even cause death. 

Due to the lack of case examples and research, the precise mechanism of FDEIA is still very much undetermined. In our presentation, we will discuss the current theories regarding the pathophysiology of the disease, as well as the possible treatments.

Session 2: There are no Science Sharings. ExCo election will proceed afterwards.