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By Jiwon Choi, VI Form
Editor’s Note: This STEM Fellowship project by Jiwon won the Worcester Regional Science and Engineering Fair (1st out of 130+ students). She placed third out of all 200+ projects at the Massachusetts Science and Engineering Fair allowing her to compete at 2019 ISEF in Phoenix.
Three-dimensional (3D) bioprinting is one of the most promising methods of tissue engineering as it provides unprecedented versatility and precision in delivering cells and biomaterials to desirable places. However, limitations still exist in the availability of bioinks with natural bio-macromolecular components. In this research, chicken albumin is evaluated as a potential bioink for direct extrusion bioprinting of hollow constructs through alginate-templated crosslinking. Channel diameter, wall thickness, and bioink feed rates are calculated to assess the printing performance of the alginate-based bioink. It is shown that an albumin-based bioink with as low as 1.33% of total alginate concentration can be employed to successfully print microfibrous hollow constructs with a uniform diameter.
By Reina Wang, Maya Scully, Michael Fisher, Arthur Gao, III Form and Grace Zawadzki, V Form
Spread No More: The Effect Global Aid Has on the Spread of Tuberculosis
Editor’s Note: The Global Seminar teaching team works with all III Formers on an infectious disease project. This is a complex project that involves group work with other members of the III Form and with V Form biology mentors. The final result is exhibited in a poster session, allowing for visitors to do a gallery walk and have questions answered by the poster’s creators.
ABSTRACT: Tuberculosis is an infectious disease that threatens health and life throughout the history, but with the help of global aid, there has been a solution to decrease the number of contagious people, especially in developing countries. It is a disease caused by Mycobacterium tuberculosis, which is a bacteria mainly attacking lung surfaces since it spreads through air. Latent and active tuberculosis are two types of the disease, in which latent tuberculosis does not show any symptoms while active tuberculosis does. The most common treatment is a prescribed combination of isoniazid and rifampin, but it only works if the patient completes the procedure and takes the medicine regularly. With the assistance of global aid, there have been many non-governmental organizations (NGO) dedicated to the treatment of tuberculosis worldwide. They offer treatments and technologies to developing countries which does not have access to them. Even if the volunteers who work at the NGOs have the possibilities to carry the bacteria when traveling and spread it to other places, global aid has made huge progress in dealing with tuberculosis. Global aid will influence more and more countries so that tuberculosis will slowly be dissolved in the near future.
By Danny Ciccarello and Helen Huang, V Form
Explaining Length Contraction
Editor’s Note: In “Modern Topics Physics,” students created videos to explain different topics associated with Einstein’s Theory of Relativity. The aim of the assignment included explaining the chosen topic in simple terms while avoiding the use of complicated equations.
By Clara Hua, IV Form
Annotated Diagram: Human Immunodeficiency Virus
Editor’s Note: The “Biology 30” class zoomed in to examine the cellular (and sub-cellular) impacts and zoomed out to consider some of the economic, geo-political, environmental and cultural factors that have an influence on the spread of this disease. An Annotated Diagram is a formal sketchnote that aims to demonstrate understanding of the information by presenting how the information (the full story of HIV/AIDS) was processed.
By Matt Walsh, VI Form, Laura Sabino, V Form, and Maddie Wass, V Form
Mitotic Cell Division Artifact of Learning
Editor’s Note: See the image below of the whiteboard artifact images for the description of the assignment in Advanced Biology.
By Cadence (Catie) Summers, IV Form
Green Sea Turtle – Chelonia mydas & Marine Turtle Exhibition
Green Sea Turtle – Chelonia mydas
Stage in Maturity – Adult (more…)