Tech

Researchers at ETH Zurich under the direction of ETH Professor Kristina Shea and colleagues at Caltech in Pasadena, California, have developed a new propulsion concept for swimming robots. The robot exploits temperature fluctuations in the water for propulsion without the need for an engine, propellant or power supply.

In a new study published in EPJ B, Basant Lal Sharma from the Indian Institute of Technology Kanpur provides a detailed analysis of how the flow of heat and electrons is affected at the interface between an 'armchair' shaped carbon nanotube and a zigzagging nanoribbon made up of a single-layer carbon honeycomb sheet of graphene. Applications of this method can help us understand the propagation of electrons and thermal flow in graphene and similar materials for electromagnetic devices.

A group of men who may be underestimating their HIV risk has been identified in a new study.

Public health messages should be targeted specifically at this neglected group, suggest researchers who carried out the work.

The men are a distinct group who have sex with other men, but are not open about their sexuality.

They tend to mix with, and acquire infection from, each other and not from openly gay men.

They are unlikely to mix in the same social venues as openly gay men and are not likely to disclose that they have sex with other men.

Researchers from North Carolina State University have created a new online service - ChemMaps - that allows users to interactively navigate the chemical space of over 8,000 drugs and 47,000 environmental compounds in 3D and real time. ChemMaps is designed to be a central resource for students and researchers who want to easily visualize and study complicated sets of chemical structures. The first release of the free-to-use website is available at http://www.chemmaps.com.

PHILADELPHIA - In a finding that suggests the potential for practice change that would reduce the use of antibiotics in dermatology, researchers in the Perelman School of Medicine at the University of Pennsylvania have found the diuretic drug spironolactone may be just as effective as antibiotics for the treatment of women's acne. The study, published this month in the Journal of Drugs and Dermatology, found patients who were originally prescribed spironolactone changed to a different drug within one year at almost the same rate as those who were prescribed antibiotics.

How do you put a 13-ton hat on a giant statue? That's what a team of researchers is trying to figure out with their study of Easter Island statues and the red hats that sit atop some of them.

"Lots of people have come up with ideas, but we are the first to come up with an idea that uses archaeological evidence," said Sean W. Hixon, graduate student in anthropology, Penn State.

Updated results of the global phase III ALEX trial comparing alectinib with crizotinib as first-line treatment against ALK-positive non-small cell lung cancer show a median progression-free survival (PFS) of 34.8 months in 152 patients treated with alectinib versus 10.9 months in 151 patients treated with crizotinib.

Survival results for the CALGB 80303 Trial presented today at the American Society of Clinical Oncology (ASCO) Annual Meeting 2018 demonstrate that esophageal cancer patients shown by PET scan to be non-responders to induction chemotherapy, and were then switched to a new chemotherapy during chemoradiation, showed median overall survival of 27 months. This improves on 18-month median overall survival of previous studies that used the same chemotherapy with non-responders during induction and chemoradiation treatment phases.

SEATTLE - Lifestyle-related cancers, such as lung, colorectal, and skin cancers, have increased globally over the past decade, according to the most comprehensive analysis of cancer-related health outcomes and patterns ever conducted.

DURHAM, N.C. -- Contrary to current perceptions, certain African-American men with advanced prostate cancer have as good a chance of survival as white men and might actually have a small advantage, according to a new analysis of more than 8,000 patients who participated in clinical trials.