Published by the Students of Johns Hopkins since 1896
November 13, 2025
November 13, 2025 | Published by the Students of Johns Hopkins since 1896

Science & Technology



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Adding more physicians’ assistants to hospital groups can free up physicians’ time.

Adding physicians’ assistants cuts hospital costs

As health care expenditures rise, policy makers and administrators are scrambling to find ways to cut costs. The results of a recently published study indicate that it’s possible for hospitals to decrease expenditures without compromising the quality of patient care by adding more physicians’ assistants (PAs).


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The USS Zumwalt was commissioned in Baltimore and is making its way to San Diego.

U.S. Navy commissions world’s largest battleship

The United States Navy’s latest addition to its battleship fleet, the USS Zumwalt, is the largest and most technologically advanced warship. The vessel was commissioned, or officially placed into active service in Baltimore on Oct. 15.


Study challenges past physics Nobel Prize results

In 2011, the Nobel Prize in Physics was awarded to three physicists for their discovery that confirmed that not only was the universe expanding, but also that it was doing so at an accelerated rate driven by the repulsive force of the strange and elusive substance, dark energy.



 COURTESY OF CATHY NIE
Thirty-one students presented at the Undergraduate Research Symposium, hosted by Nu Rho Psi.

Students present at Nu Rho Psi symposium

“The impossibility of today is tomorrow’s possibility,” Moran Cerf, a professor from Northwestern University (NU), announced during his keynote presentation at the Oct. 25 Nu Rho Psi Undergraduate Research Symposium.


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Migraineurs have a higher amount of nitrate-reducing oral bacteria.

Oral bacteria linked to onset of migraines

Surveying the food in the Fresh Food Café, you see that juicy sausage and mouth-watering bacon. All these processed meats, containing high levels of nitrates and nitrites, are commonly known to be correlated with cancer and heart diseases. On top of that, these nitrate-containing foods have been recently identified as triggering headaches.





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Organs-on-chips may dramatically reduce the need for animal testing.

3D printing used to construct organ tissue

Researchers from Harvard’s John A. Paulson School of Engineering and Applied Sciences (SEAS) have expanded the frontiers of 3D printing. Recently, 3D printing has enabled researchers to construct synthetic organ tissue that can mimic the functions and structures of human cells.



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HopHacks brought together students with different coding skill sets to compete in an app building contest.

330 students compete in biannual HopHacks

Hopkins hosted the biannual hackathon, HopHacks, on Oct. 21. Twice a year, coders from all over the country arrive in Baltimore to compete in a 36-hour app building challenge. This year, HopHacks was co-hosted by Booz Allen Hamilton.


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Dwarf planet 2014 UZ224 takes 1,100 Earth years to orbit the sun.

New dwarf planet found in Kuiper Belt

Ever since the International Astronomical Union (IAU) demoted Pluto from a planet to a dwarf planet in 2006, people have begun to pay significantly more attention and draw more definitive lines to the concept of a “dwarf planet.”



Immunotherapy drug approved by U.S. FDA

The U.S. Food and Drug Administration (FDA) expanded approval on Oct. 24 for breakthrough drug pembrolizumab, a first-line treatment for certain patients with metastatic non-small cell lung cancer (NSCLC).


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The smaller the index-to-ring finger ratio the greater the amount of testosterone present.

Index-to-ring-finger ratio can indicate prenatal testosterone

Neuroscientists at the Norwegian University of Science and Technology (NTNU) have long been studying how the male and female brains differ. Researchers have, for example, consistently found significant performance differences on certain cognitive tasks between males and females.


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Dementia risk may increase with ADT

Low testosterone levels increase dementia risk

In a retrospective study of medical records, researchers from Stanford University and the University of Pennsylvania concluded that lowering testosterone levels in men with prostate cancer could be associated with an increased risk of developing dementia. These findings, if confirmed by future clinical trials, could alter the way doctors treat prostate cancer in the near future.



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Human cortical folding is universal.

Brain cortex folds universally for all humans

A recent study done at the Newcastle University in collaboration with the Federal University of Rio de Janeiro, and published in the Proceedings of the National Academy of Sciences, demonstrated that human brains fold universally.


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