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Category: Electronics Engineering

Microbial signal recognition stems from existing building blocks — ScienceDaily

A team led by the Freiburg biochemist Prof. Dr. Susana Andrade has characterized a protein that enables certain microorganisms to recognize and absorb ammonium in their environment. Ammonium is considered a toxin that pollutes ecosystems — but for these bacteria it represents an important nutrient and energy source. The researchers have published their findings in the scientific journal Nature Communications. The element nitrogen is an indispensable building block of all biomolecules and therefore of great importance to all organisms. In…

Evolving search recommendations on Pinterest – Pinterest Engineering – Medium

Maesen Churchill | Software engineer, search Pinterest is all about helping people discover ideas to try in real life, whether it’s a recipe to cook, a product to buy or a trip to take. Search is a key part of discovery, and we handle billions of queries every month. On Pinterest we find that people want to explore possibilities much more often than just getting a single result. In fact, nearly 75 percent of queries are just 1–3 words, and…

Implementing SqPaymentForm in Reaction Commerce – Square Corner Blog – Medium

Under the Payment Card Industry Data Security Standard (PCI-DSS), to process payments securely, you must minimize the amount of sensitive cardholder data that you handle. If you don’t, you could be vulnerable to a breach, lose your ability to process payments, or incur fines from your processor. No payments = no money & no money = no business. As soon as you accept, process, store, or transmit sensitive cardholder data, you become responsible for safeguarding that data. So how can…

Now You See Me, Now You Don’t: LinkedIn’s Real-Time Presence Platform

Thus, during the process heartbeat step, we create this delayed trigger if it doesn’t yet exist for the member. If it already exists, we simply reset it to fire in another d + 2ε seconds. When the delayed trigger for an online member fires, we check whether the member’s heartbeat has expired in our K/V store. If it has, we publish an offline event on the presence status topic for that member on the Real-time Platform to distribute the fact…

Pickups, SUVs in spotlight at 2018 Detroit auto show

The Ford F150 Lariat truck, like other pickups, was a top seller in 2017, a trend that is expected to continue Pickup trucks and SUVs will be among the biggest stars of this year’s Detroit Auto Show, reflecting the US tilt towards larger vehicles in an era of relatively low gasoline prices. Car sales data from 2017 show large models grabbing their biggest-ever share of the US market. Judging from the agenda of the 2018 show, which kicks off this…

Startup aims to make vision care more accessible in developing world

MIT spinout PlenOptika has developed a highly accurate, portable autorefractor called QuickSee that measures refractive errors of the eye. More affordable than the current technology, the device has potential to reach patients in previously inaccessible areas of developing countries. Credit: PlenOptika Vision impairment is a major global issue. More than 2 billion people worldwide don’t have access to corrective lenses. Getting eyeglasses prescriptions is especially difficult in developing countries. Optometrists are generally located in urban centers and rarely see patients…

Testing of Microservices

Most people would say that we write tests to verify that things work as we expect them to. While that is true, it’s not the whole truth. After all, that can be verified through manual tests as well. So there has to be something more to it. Anyone who has ever done manual testing knows that it’s slow, boring and error-prone. By writing automated tests we are trying to remove — or at the very least improve — on these…

A Better Scientific Method for IT |

Here at Wayfair, we believe complexity theory to be valuable and quite helpful in terms of data center builds. In particular, there are certain ways we can use this theorem to prevent outages in the future. There will forever be unpredictable events – how do we assess their difficulty or state to be better prepared for their arrival? At the most recent Boston DevOps meetup, I had the opportunity to discuss why complexity theory is such a popular concept among…

Don’t like going to the gym? It could be your personality — ScienceDaily

The effectiveness of someone’s exercise regime may depend on their individual personality type, with more creative people better suited to outdoor activities. That is the key finding of research being presented today, Thursday 11 January, by John Hackston, Chartered Psychologist and Head of Thought Leadership at OPP, at the British Psychological Society’s annual conference of the Division of Occupational Psychology in Stratford-upon-Avon. John Hackston said: “We were keen to investigate how organisations could help their staff’s development through exercise, finding…

Project STAR*: Streamlining Our On-Call Process

Problem statement As with any good project, the first thing we had to do was clearly articulate the problem statement. It was obvious that there were several different problem areas within Voyager On-Call, so we sat down and came up with four high-level buckets that covered the most serious issues facing On-Call at the time: Scheduling Tools and technical debt Accountability Roles and responsibilities We came up with the name Project STAR* as an acronym based on the four problem…