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wearables can serve another purpose — determining whether you’re a productive employee. The data-obsessed may be quick to embrace such an assessment, but what if an employer has access to that information as well?

The researchers say their mobile-sensing system, which consists of fitness bracelets, sensors and a custom app, can measure employee performance with about 80 percent accuracy.

The system monitors physical and emotional signals that employees produce during the day and uses that data to create a performance profile over time that is designed to eliminate bias from evaluations

The results from the first 12 months are striking. Even with only half of the 54 uniformed patrol officers wearing cameras at any given time, the department over all had an 88 percent decline in the number of complaints filed against officers, compared with the 12 months before the study, to 3 from 24.

Rialto’s police officers also used force nearly 60 percent less often — in 25 instances, compared with 61. When force was used, it was twice as likely to have been applied by the officers who weren’t wearing cameras during that shif

privacy implications? Jay Stanley, a senior policy analyst at the American Civil Liberties Union, says: “We don’t like the networks of police-run video cameras that are being set up in an increasing number of cities. We don’t think the government should be watching over the population en masse.” But requiring police officers to wear video cameras is different, he says: “When it comes to the citizenry watching the government, we like that.”

The Fourth Industrial Revolution has the potential to empower individuals and communities, as it creates new opportunities for economic, social, and personal development. But it also could lead to the marginalization of some groups, exacerbate inequality, create new security risks, and undermine human relationships.

If we are to seize the opportunities, and avoid the pitfalls, of the Fourth Industrial Revolution, we must consider carefully the questions that it raises. We must rethink our ideas about economic and social development, value creation, privacy and ownership, and even individual identity. We must address, individually and collectively, moral and ethical issues raised by cutting-edge research in artificial intelligence and biotechnology, which will enable significant life extension, designer babies, and memory extraction. And we must adapt to new approaches to meeting people and nurturing relationships.

Consider the impact that mobile technology has already made on our lives and relationships. As the novelty of wearable tech gives way to necessity – and, later, as wearable tech becomes embedded tech – will we be deprived of the chance to pause, reflect, and engage in meaningful, substantive conversations? How will our inner lives and ties to those around us change? These are weighty questions, about which debate will probably intensify in the coming years.

During his day shift at the Hospital of the University of Pennsylvania, Anthony Scarpone-Lambert steps into a patient’s room. The lights are off, but he knows he has to change the IV without disturbing the patient.

It’s this dilemma that he sought to fix by inventing what he and his co-founder call the uNight Light, a wearable light-emitting diode, or LED, that allows nurses to illuminate their work space without interrupting a patient’s sleep.

Mr. Scarpone-Lambert and his co-founder, Jennifferre Mancillas, are calling the light a breakthrough for frontline health care workers.

While the rest of the U.S. economy languished earlier this year, the tech industry’s biggest companies seemed immune to the downturn, surging as the country worked, learned and shopped from home.

Combined, the four companies reported a quarterly net profit of $38 billion.

Amazon reported record sales, and an almost 200 percent rise in profits, as the pandemic accelerated the transition to online shopping. Despite a boycott of its advertising over the summer, Facebook had another blockbuster quarter.