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Engineering News

Three-quarters of COPD cases are linked to childhood risk factors that are exacerbated in adulthood — ScienceDaily

While smoking remains the biggest risk factor for COPD, the study demonstrates that childhood illnesses (such as asthma, bronchitis, pneumonia, allergic rhinitis, eczema) and exposures to parental smoking are also linked to the disease. Credit: © Michail Petrov / Fotolia While smoking remains the biggest risk factor for COPD, the study demonstrates that childhood illnesses (such as asthma, bronchitis, pneumonia, allergic rhinitis, eczema) and exposures to parental smoking are also linked to the disease. Credit: © Michail Petrov / Fotolia…

Netflix FlameScope – Netflix TechBlog – Medium

We’re excited to release FlameScope: a new performance visualization tool for analyzing variance, perturbations, single-threaded execution, application startup, and other time-based issues. It has been created by the Netflix cloud performance engineering team and just released as open source, and we welcome help from others to develop the project further. (If it especially interests you, you might be interested in joining Netflix to work on it and other projects.) FlameScope combines a subsecond-offset heatmap for navigating a profile with flame…

Footsteps to preventing falls

One of four elderly persons falls every year in the United States. With more than 37 million hospitalizations every year, roughly one million falls occur in hospitals and can lead to serious injury and even death. Patients often fall while trying to get out of bed or when they walk for longer than they are able. Nurses can’t constantly monitor individual patients because of the number of patients they attend to. Sensors can continuously monitor patients, but many only detect…

Electrodes on the face and jaw pick up otherwise undetectable neuromuscular signals triggered by internal verbalizations — ScienceDaily

MIT researchers have developed a computer interface that can transcribe words that the user verbalizes internally but does not actually speak aloud. The system consists of a wearable device and an associated computing system. Electrodes in the device pick up neuromuscular signals in the jaw and face that are triggered by internal verbalizations — saying words “in your head” — but are undetectable to the human eye. The signals are fed to a machine-learning system that has been trained to…

Scaling Uber’s Hadoop Distributed File System for Growth

Three years ago, Uber Engineering adopted Hadoop as the storage (HDFS) and compute (YARN) infrastructure for our organization’s big data analysis. This analysis powers our services and enables the delivery of more seamless and reliable user experiences. We use Hadoop for both batch and streaming analytics across a wide range of use cases, such as fraud detection, machine learning, and ETA calculation. As Uber’s business grew over the last few years, our volume of data and the associated access loads…

Behind “Big Data” and “AI”: Elements of Modern Data Science

I’m sure everyone who has been following tech industry news knows about “big data” and “AI.” Although there is no industry-consistent definition for either term, most people tend to agree that both have been playing more and more important roles lately, and that we need to know and leverage them better in both our personal and professional lives. But wouldn’t it be interesting if we looked beyond the marketing hype for a moment and talked about the people who are…

New underwater geolocation technique takes cues from nature

Two peacock mantis shrimp (Odontodactylus scyllarus) wrestling. Credit: Marshall laboratory / The University of Queensland Marine animals such as mantis shrimp and squid have inspired a new mode of underwater navigation that allows for greater accuracy. University of Queensland Queensland Brain Institute (QBI) scientists are part of a group of researchers who have developed the technique using imaging equipment that was sensitive to polarising light. The researchers built polarisation sensors that were able to determine the sun’s position in…

A Private Link to the Public Internet

Photo from Wikimedia Commons Today we’re introducing Argo Tunnel, a private connection between your web server and Cloudflare. Tunnel makes it so that only traffic that routes through Cloudflare can reach your server. You can think of Argo Tunnel as a virtual P.O. box. It lets someone send you packets without knowing your real address. In other words, it’s a private link. Only Cloudflare can see the server and communicate with it, and for the rest of the internet, it’s…

Quality assurance for autonomous systems

Franz Wotawa, Head of the Christian Doppler Laboratory for Methods for Quality Assurance of Autonomous Cyber-Physical Systems at TU Graz. Credit: Lunghammer – TU Graz Cyber-physical systems combine electronics, software and mechanics. They are highly complex, and in addition to many application possibilities, raises a whole range of issues. They are dependent on error-free software, and the issue of proven quality assurance thus becomes increasingly urgent. Using the example of autonomous vehicles, a team from TU Graz’s Institute of Software…

Tai Chi offers a low-cost, easily accessible alternative to pulmonary rehabilitation, study finds — ScienceDaily

Finding ways to help patients with COPD improve their functional status is an area of interest for pulmonary healthcare providers. Currently, pulmonary rehabilitation (PR) is used where available to improve exercise capacity and quality of life, but the treatment requires access to trained staff and specialized facilities. A new study in the journal CHEST® looked at Tai Chi as a lower cost, more easily accessed treatment option. Investigators found that this slow, methodical form of exercise is equivalent to PR…