The hard drives were spoiled by the sound from the usual

The hard drives were spoiled by the sound from the usualnotebook speakers.   Using ordinary sound and ultrasound, attackers can disrupt the process of reading or writing data with a hard disk. Also, this method can be used to disrupt the launch of the operating system, and in some cases, to damage the hard drives. This conclusion was made by a group of specialists in information security based on a series of their own experiments.  In this case, especially complex devices are not needed, they are almost suitable means. In order to perform a sound attack, you need local sound sources, the purpose of which will be a hard disk. The source can be ordinary low-cost speakers ...
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graphql - optimization of queries to the database

When working with databases there is a problem that is called "SELECT N + 1" - this is when the application instead of one query to the database that selects all the necessary data from several linked tables, collections, makes an additional subquery for each result row of the first query, to get related data. For example, first we get a list of students of the university, in which its specialty is identified by an identifier, and then for each of the students we make an additional subquery in the table or a collection of specialties in order to get the name of the specialty by the specialty ID...
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Interview with an expert in tissue engineering and regenerative medicine, Professor Tal Dvir

Interview with an expert in tissue engineering and regenerative medicine, Professor Tal Dvir  
 
Professor Dvir received PhD in biotechnology engineering at Ben-Gurion University in the Negev in Israel. He studied with Professor Smadar Cohen and focused on the cultivation and regeneration of cardiac tissue. Professor Dvir continued his research in the laboratory of Professor Robert Langer at the Faculty of Chemical Engineering at the Massachusetts Institute of Technology. His research focused on nanotechnology strategies in the engineering of complex tissues. In October 201? Professor Dvir was invited to the Department of Biotechnology and the Nanotechnology Center at Tel Aviv University to create ...
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"Help in the work": how to make chat bots smarter than

ServiceNow announced on the acquisition of the Parlo start-up, which develops solutions based on machine learning, in particular, the system for processing natural language (NLP). Let's talk about the purpose of acquiring a startup and the algorithm for setting up a chat bot on the Now Platform platform.
 
 
"Help in the work": how to make chat bots smarter than

 
/photo ☰☵ Michele M. F. CC
 
 

Why is it ServiceNow


 
In Parlo we offer Broca platform, which is sharpened for speech recognition. ServiceNow ...[/h]
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How to make your IT infrastructure boring

How to make your IT infrastructure boringMichael DeHaan is the person who created Ansible. Many things that system administrators, release- and DevOps-engineers do on a regular basis are, to put it mildly, uninteresting. DeHaan wants these people to free their time for more interesting things (at work or outside the office door), and wrote a product code that frees administrator time.
 
More time, less adrenaline during business hours, fewer scripts and fewer errors.
 
By the way, you can finish reading on this paragraph, instead of connecting to livestream on June ? here is ...
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OutOfMemory and GDI + sometimes not at all OutOfMemory

During the last project at work, my colleague and I encountered that some methods and constructors in System.Drawing fall from OutOfMemory in completely normal places and when there is still a lot of memory free.
 
referencesource.microsoft.com . There will be the following:
 
public LinearGradientBrush (PointF point? PointF point? Color color? Color color2) {
IntPtr brush = IntPtr.Zero;
int intact = SafeNativeMethods.Gdip.GdipCreateLineBrush (
new GPPOINTF (point1),
new GPPOINTF (point2),
color1.ToArgb (),
color2.ToArgb (),
(int) WrapMode.Tile,
? out brush
);
if (status! = SafeNativeMethods.Gdip.Ok)
throw ...
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The second generation AMD Ryzen: testing and detailed analysis

The second generation AMD Ryzen: testing and detailed analysis  
 
With the end of 201? in which the Ryzen processor became one of AMD's most successful products, a logical question arose: what next? In early 201? plans were voiced: Ryzen of the second generation should appear in the middle of the year, after which the second generation of Threadripper will be released, at the 12-nm process GlobalFoundries. This is not the next new AMD microarchitecture, which, as we know, will be Zen 2 on the 7 nm process technology. This release of components with some improvements, plus the ability to use a manufacturing process that allows you to raise the frequency and performance ...
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Distributed data center from the provider: what and why

Distributed data center from the provider: what and whyOver the decades of its existence, data centers have come a long way from small computer rooms to data centers, data centers, cloud and distributed data centers. What is the purpose of distributed data centers? All known Cisco Systems distinguishes the following goals of their creation:
 
 
 
Catastrophic resistance
 
Continuity of data processing
 
Mobility of applications
 
Migration of systems
 
Capacity /capacity expansion
 
Distributed services
 
Geographically-localized services
 
 
Medium-sized organizations often have a fairly centralized model, where all data, services and applications ...
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myDribbble Meetup 2017 in Moscow

myDribbble Meetup 2017 in Moscow  
 
June 3 in Moscow was myDribbble Meetup 2017 . At this informal conference for designers, a dozen of strong and novice specialists appeared, many of which are presented in one of the main thematic social networks Dribbble . The creators of the Principle and Sympli instruments, Georgy Kvasnikov (Fantasy), Oleg Beresnev (Design), Max Orlov (ONY), Nikolay Ivanov (AIC), Artem Geller (Design of state systems), Ivan Vasilyev (Alfa-Laboratory), Ilya Grishin and Oleg Andrianov (VKontakte), Dmitry Chuta (Screens Today /Chapps), Radik Zagidullin, Danial Siddiqi, Lena Anikeeva (Pixies), Roman Temples ...
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Hello, aliens; please do not kill us

A new initiative to send messages into space may be the best chance to find out whether we are alone in the universe. There is only one problem: what if we are not alone?


 
Hello, aliens; please do not kill us  
 
On November 1? 197? several hundred astronomers, officials and other high officials gathered in the northwestern part of Puerto Rico, surrounded by rainforests, four hours' drive from San Juan. The purpose of the meeting was the reopening of The Arecibo Observatory ...[/h]
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