MIT chemists, using a new cross-linking molecule, have significantly enhanced the ballistic impact resistance of commonly used polymers, including polystyrene and a type of rubber found in shoe soles. Polystyrene, a rigid polymer, is used in various plastic items like bottles, mugs, and disposable cutlery, and serves as coatings for electronics and in foam form…
In the U.S., children typically receive a polio vaccine via injection, which effectively prevents the disease but is less efficient at halting virus transmission compared to the oral version. Poliovirus commonly spreads through contaminated food or water, initially affecting the gastrointestinal (GI) tract. The oral vaccine induces a mucosal immune response in the GI tract,…
In the fast-paced global economy, companies may use generative AI models to quickly interpret and summarize the charts found in market reports and financial documents. However, even cutting-edge vision-language models can struggle with this task, as it requires them to understand visual, numerical, and linguistic elements. Even with advanced models, companies may still face issues…
I am about to become an adjunct at my graduate alma mater for the first time, and the pressure, anxiety, and a hint of imposter syndrome are palpable. These feelings, though common, often complicate the job. When a great opportunity arises, it’s typical to focus on potential negatives rather than embrace the growth it might…
Swiss Army knives are popular for their compact size and multifunctionality. They can solve various small issues, like a loose screw or a tag that needs cutting. Similarly, educators face diverse challenges in the classroom, such as student silence or a lack of community, which complicates group work. The high point – low point activity…
Harvard celebrated its 375th Commencement last Thursday in Tercentenary Theatre, with joyful scenes across the Yard. Thousands of graduates, their families, friends, dignitaries, and volunteers gathered for the event, which was captured in highlights by photographers. Alumni volunteers from the Commencement “Happy Committee” emerged from Harvard Hall to prepare for the celebration. The Middlesex County…
Sarah Isgur, in her book “Last Branch Standing: A Potentially Surprising, Occasionally Witty Journey Inside Today’s Supreme Court,” discusses how the increasing distrust of Supreme Court justices reflects more on societal tribalism than on any fundamental change within the judiciary itself. Back in January 2000, 69 percent of Americans were satisfied with the country’s direction….
New research indicates that increased interaction between different groups leads to more marriages across class lines but not racial lines in the U.S., where residential segregation is prevalent. This issue is seen as a factor in income inequality and social mobility. A study by the National Bureau of Economic Research looked at how exposure to…
Finding a balance between economic development and conserving the environment is challenging. Wetlands, which are crucial for flood control and supporting ecosystems, are a prime example. A recent study suggests that replacing traditional conservation requirements with tradeable offsets could be a solution. In this system, developers can impact wetlands by buying credits that represent equivalent…
Engineers at MIT have created a pacemaker that uses ultrasound to stimulate the heart without surgery. This innovation may eventually serve as a non-surgical alternative to traditional cardiac implants. The small device is a sticker worn on the chest, featuring tiny transducers that emit ultrasound pulses to activate the heart. The ultrasound waves open specific…
