Google runs a CTF competition in two rounds: an online qualification round and an onsite final round. If you are a seasoned and experienced player, or feel ready for a harder challenge, our competition will be running from June 22 00:01 UTC until June 23 23:59 UTC. During the competition, you can reach the Google CTF team on IRC on ##ctfcompetition on freenode.

For example:

We tested mimalloc against many other top allocators over a wide range of benchmarks, ranging from various real world programs to synthetic benchmarks that see how the allocator behaves under more extreme circumstances. In our benchmarks, mimalloc always outperforms all other leading allocators (jemalloc, tcmalloc, Hoard, etc), and usually uses less memory (up to 25% more in the worst case). With a single thread they all perform the same, but when running with multiple threads the potential allocator induced false sharing of the cache lines causes large run-time differences, where mimalloc is more than 18× faster than jemalloc and tcmalloc!

On the first day, a semantic “name recognition” memory test was conducted after a 30-minute session of moderate (70% of VO2 max effort) intensity cycling on a stationary bike. In addition to the long-term brain benefits of sticking with a regular exercise regimen throughout the week and across a lifespan, the latest research suggests that scheduling a 30-minute cardio workout at moderate intensity immediately before taking a written test or writing something that requires semantic memory might improve your performance. The key to any well-structured “neuroprotective” workout regimen is to constantly mix-it-up by spending a little time in various zones of intensity every week and striving for about 30 minutes of MVPA aerobic exercise most days of the week, if possible.

A Lagrange point is a location in space where the combined gravitational forces of two large bodies, such as Earth and the sun or Earth and the moon, equal the centrifugal force felt by a much smaller third body. At this point, with the Earth, moon and sun behind it, a spacecraft can get a clear view of deep space. The third Lagrange point, L3, lies behind the sun, opposite Earth’s orbit.

Our backend is running on Google Cloud Platform (GCP). We make extensive use of GCP’s managed services and are always at the forefront of GCP’s evolution:

On the frontend we’ve built the InboxSDK library (https://www.inboxsdk.com) to power our best-in-class integration with Gmail. State and data synchronization is accomplished with a battle tested in-house framework that makes extensive use of streams will be very competitive with compensation, we’re not opening a Vancouver office to get cheap labor.

Whereas relational databases are adequate for handling thematic attributes, they fail to manage spatial information efficiently. In this paper, we point out that neither a hybrid solution using relational databases and a separate spatial index nor the approach of existing object-relational database systems provide a satisfying solution to this problem. Unfortunately, the techniques are very sensitive to the suitable choice of an underlying resolution parameter if objects with a spatial extension such as rectangles or polygons are stored.

Using DNA microscopy, scientists can identify different cells (colored dots) within a sample — with no prior knowledge of what the sample looks like. With DNA microscopy, scientists can build a picture of cells and simultaneously amass enormous amounts of genomic information, Weinstein says. Credit: Weinstein et al./Cell

He thinks DNA microscopy could one day let scientists speed the development of immunotherapy treatments that help patients’ immune systems fight cancer.

The Greenland Ice Sheet holds 7.2 m of sea level equivalent and in recent decades, rising temperatures have led to accelerated mass loss. We pair an outlet glacier–resolving ice sheet model with a comprehensive uncertainty quantification to estimate Greenland’s contribution to sea level over the next millennium. Depending on the emission scenario, the Greenland Ice Sheet will have lost 8 to 25% (RCP 2.6), 26 to 57% (RCP 4.5), or 72 to 100% (RCP 8.5) of its present-day mass, contributing 0.59 to 1.88 m, 1.86 to 4.17 m, or 5.23 to 7.28 m to global mean sea level, respectively, where ranges refer to the 16th and 84th percentiles (Fig. 1B and Table 1).

For the last twenty years it has evolved as kdb+, trading as Kx Systems, Inc.[2] It’s a two-orders-of-magnitude sort of thing: two orders of magnitude faster than industry-standard database, two orders of magnitude smaller code volume. Whitney sent Oleg and Pierre some of the C code he was working on, and notes on a problem he didn’t know how to solve. Whitney demonstrated his “research K interpreter” at the Iverson College meeting[5] in Cambridge in 2011.

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HarfBuzz is now available on master

From:

Eli Zaretskii

Subject:

HarfBuzz is now available on master

Date:

Fri, 07 Jun 2019 22:17:06 +0300

I’ve landed the harfbuzz branch. If you have the HarfBuzz library
installed, your next build of the master branch should use HarfBuzz as
the text shaping engine in preference to all the others. [Prev in Thread]
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HarfBuzz is now available on master,
Eli Zaretskii =