In work that could help inform policies for government surveillance and consumer data privacy, researchers show that telephone metadata can reveal a surprising amount of personal detail.
Warrantless surveillance can reveal a surprising amount of personal information about individual Americans | REUTERS/Albert Gea
Most people might not give telephone metadata – the numbers you dial, the length of your calls – a second thought. Some government officials probably view it as similarly trivial, which is why this information can be obtained without a warrant.
Last modified Wed, 18 May, 2016 at 11:11
A low-cost, portable system that uses this trusty test strip could let patients get accurate urinalysis results at home, potentially easing the workload of primary care physicians.
Simple and powerful, but imperfect | iStock/Eshma
There’s a good reason your doctor asks for a urine sample at your annual checkup. A simple, color-changing paper test, dipped into the specimen, can measure levels of glucose, blood, protein and other chemicals, which in turn can indicate evidence of kidney disease, diabetes, urinary tract infections and even signs of bladder cancer.
Last modified Tue, 17 May, 2016 at 14:56
A biologist discusses an advanced imaging technique that can help detect early-stage tumors and guide surgeons with precision.
Minuscule gold nanoparticles glom onto and help identify tumor cells. | Photo by Yonatan Winetraub/Stanford School of Medicine
Last modified Fri, 13 May, 2016 at 7:53
An experimental semiconductor material could store data in a new way that minimizes the generation of heat.
Potential for a new way to store data | iStock/ilbusca & iStock Matej Moderc
Last modified Wed, 4 May, 2016 at 11:26
A team of engineers obtain a first look inside phase-changing nanoparticles and find that their structure significantly influences performance.
Stanford engineers studying the structures of phase-changing nanoparticles have found that shape matters. Materials composed of cubes and pyramids, for instance, may yield more efficient batteries than those made of icosahedrons which are 20-sided polyhedrons. | Image courtesy Dionne Group
Last modified Tue, 26 Apr, 2016 at 12:11
A team of engineers explore how a new kind of wearable electronics could restore sensation to people with prosthetic limbs.
Can we build better prostheses? | REUTERS/Mary Schwalm
Last modified Fri, 22 Apr, 2016 at 13:57
Stanford University President John Hennessy offers his take on important leadership qualities, Silicon Valley, and the future of higher education.
Stanford University President John Hennessy discusses some of the most powerful lessons he’s learned as leader of one of the world’s most complex and dynamic institutions of higher education. In conversation with Tina Seelig, director of the Stanford Technology Ventures Program, at the DFJ Entrepreneurial Thought Leaders Series, Hennessy also shares insights from his entrepreneurial career in the high-tech industry.
Last modified Wed, 13 Apr, 2016 at 11:44
A team of researchers tracks disease the way naturalists track animals in the wild.
A time-lapse image shows the trajectories of tumor cells (green) after being stained with fluorescent dyes and labeled with magnetic nanoparticles. | Image courtesy of R. J. Wilson, C.M. Earhart and S. X. Wang
Last modified Tue, 12 Apr, 2016 at 16:55
Inspired by personal experience, an engineer pioneers the development of ‘electroceuticals’ that can dispense treatments or monitor functions deep inside the body.
Ada Poon is developing tiny electronic devices to dispense treatments or monitor functions deep inside the body. | Photo courtesy of Poon Lab
Last modified Mon, 25 Apr, 2016 at 8:56
Extracting nanodiamonds from crude oil could help produce next-generation tools for imaging and communications.
Too small to see with the naked eye, diamondoids are visible only when they clump together in fine, sugar-like crystals like these. | Photo by Christopher Smith, SLAC National Accelerator Laboratory
Last modified Mon, 11 Apr, 2016 at 8:20