## Mimicking the ultrastructure of wood with 3D-printing for green products

(Chalmers University of Technology) Researchers at Chalmers University of Technology, Sweden, have succeeded in 3D printing with a wood-based ink in a way that mimics the unique 'ultrastructure' of wood. Their research could revolutionise the manufacturing Tweet

## Computational Phase Transition Signature in Gibbs Sampling. (arXiv:1906.10705v1 [quant-ph])

2019-06-27 03:30:00 @ cs.CC updates on arXiv.org

Gibbs sampling is fundamental to a wide range of computer algorithms. Such algorithms are set to be replaced by physics based processors$-$be it quantum or stochastic annealing devices$-$which embed problem instances and evolve a physical system into an en Tweet

## A Round-Collapse Theorem for Computationally-Sound Protocols; or, TFNP is Hard (on Average) in Pessiland. (arXiv:1906.10837v1 [cs.CC])

2019-06-27 03:30:00 @ cs.CC updates on arXiv.org

Consider the following two fundamental open problems in complexity theory: 1) Does a hard-on-average language in NP imply the existence of one-way functions? 2) Does a hard-on-average language in NP imply a hard problem in TFNP (i.e., the class of total NP Tweet

## The Complexity of Helly-$B_{1}$ EPG Graph Recognition. (arXiv:1906.11185v1 [cs.DM])

2019-06-27 03:30:00 @ cs.CC updates on arXiv.org

Golumbic, Lipshteyn and Stern defined in 2009 the class of EPG graphs, as the intersection graph of edge paths on a grid. An EPG graph $G$ is a graph that admits a representation where its vertices correspond to paths in a grid $Q$, such that two vertices Tweet

## High Dimensional Discrete Integration over the Hypergrid. (arXiv:1806.11542v3 [cs.DS] UPDATED)

2019-06-27 03:30:00 @ cs.CC updates on arXiv.org

Recently Ermon et al. (2013) pioneered a way to practically compute approximations to large scale counting or discrete integration problems by using random hashes. The hashes are used to reduce the counting problem into many separate discrete optimization Tweet

## The Curse and Blessing of Not-All-Equal in k-Satisfiability. (arXiv:1809.04312v5 [cs.CC] UPDATED)

2019-06-27 03:30:00 @ cs.CC updates on arXiv.org

As a natural variant of the $k$-SAT problem, NAE-$k$-SAT additionally requires the literals in each clause to take not-all-equal (NAE) truth values. In this paper, we study the worst-case time complexities of solving NAE-$k$-SAT and MAX-NAE-$k$-SAT approxi Tweet

## P-Optimal Proof Systems for Each Set in NP but no Complete Disjoint NP-Pairs Relative to an Oracle. (arXiv:1904.06175v4 [cs.CC] UPDATED)

2019-06-27 03:30:00 @ cs.CC updates on arXiv.org

Pudl{\'a}k [Pud17] lists several major conjectures from the field of proof complexity and asks for oracles that separate corresponding relativized conjectures. Among these conjectures are: - $\mathsf{DisjNP}$: The class of all disjoint NP-pairs has no man Tweet

## Differential Geometric Foundations for Power Flow Computations. (arXiv:1903.11131v2 [math.DG] UPDATED)

2019-06-27 03:30:00 @ cs.CG updates on arXiv.org

This paper aims to systematically and comprehensively initiate a foundation for using concepts from computational differential geometry as instruments for power flow computing and research. At this point we focus our discussion on the static case, with pow Tweet

## Advancing Through Terrains. (arXiv:1904.08746v2 [cs.CG] UPDATED)

2019-06-27 03:30:00 @ cs.CG updates on arXiv.org

We study terrain visibility graphs, a well-known graph class closely related to polygon visibility graphs in computational geometry, for which a precise graph-theoretical characterization is still unknown. Over the last decade, terrain visibility graphs at Tweet

## Coordinatizing Data With Lens Spaces and Persistent Cohomology. (arXiv:1905.00350v2 [math.AT] UPDATED)

2019-06-27 03:30:00 @ cs.CG updates on arXiv.org

We introduce here a framework to construct coordinates in \emph{finite} Lens spaces for data with nontrivial 1-dimensional $\mathbb{Z}_q$ persistent cohomology, $q\geq 3$. Said coordinates are defined on an open neighborhood of the data, yet constructed wi Tweet

## Upper and Lower Bounds on Approximating Weighted Mixed Domination. (arXiv:1906.10801v1 [cs.DS])

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

A mixed dominating set of a graph $G = (V, E)$ is a mixed set $D$ of vertices and edges, such that for every edge or vertex, if it is not in $D$, then it is adjacent or incident to at least one vertex or edge in $D$. The mixed domination problem is to find Tweet

## Lawn: an Unbound Low Latency Timer Data Structure for Large Scale, High Throughput Systems. (arXiv:1906.10860v1 [cs.DS])

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

As demand for Real-Time applications rises among the general public, the importance of enabling large-scale, unbound algorithms to solve conventional problems with low to no latency is critical for product viability. Timer algorithms are prevalent in the c Tweet

## Parameterized Approximation Schemes for Independent Set of Rectangles and Geometric Knapsack. (arXiv:1906.10982v1 [cs.DS])

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

The area of parameterized approximation seeks to combine approximation and parameterized algorithms to obtain, e.g., (1+eps)-approximations in f(k,eps)n^{O(1)} time where k is some parameter of the input. We obtain the following results on parameterized ap Tweet

## String Sanitization: A Combinatorial Approach. (arXiv:1906.11030v1 [cs.DS])

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

String data are often disseminated to support applications such as location-based service provision or DNA sequence analysis. This dissemination, however, may expose sensitive patterns that model confidential knowledge (e.g., trips to mental health clinics Tweet

## Survey of Information Encoding Techniques for DNA. (arXiv:1906.11062v1 [q-bio.QM])

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

Key to DNA storage is encoding the information to a sequence of nucleotides before it can be synthesised for storage. Definition of such an encoding or mapping must adhere to multiple design restrictions. First, not all possible sequences of nucleotides ca Tweet

## The Complexity of Helly-$B_{1}$ EPG Graph Recognition. (arXiv:1906.11185v1 [cs.DM])

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

Golumbic, Lipshteyn and Stern defined in 2009 the class of EPG graphs, as the intersection graph of edge paths on a grid. An EPG graph $G$ is a graph that admits a representation where its vertices correspond to paths in a grid $Q$, such that two vertices Tweet

## Making a Sieve Random: Improved Semi-Streaming Algorithm for Submodular Maximization under a Cardinality Constraint. (arXiv:1906.11237v1 [cs.DS])

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

In this paper we consider the problem of maximizing a non-negative submodular function subject to a cardinality constraint in the data stream model. Previously, the best known algorithm for this problem was a $5.828$-approximation semi-streaming algorithm Tweet

## A Hybrid Quantum-Classical Paradigm to Mitigate Embedding Costs in Quantum Annealing. (arXiv:1803.04340v3 [cs.DS] UPDATED)

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

Despite rapid recent progress towards the development of quantum computers capable of providing computational advantages over classical computers, it seems likely that such computers will, initially at least, be required to run in a hybrid quantum-classica Tweet

## High Dimensional Discrete Integration over the Hypergrid. (arXiv:1806.11542v3 [cs.DS] UPDATED)

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

Recently Ermon et al. (2013) pioneered a way to practically compute approximations to large scale counting or discrete integration problems by using random hashes. The hashes are used to reduce the counting problem into many separate discrete optimization Tweet

## Location of zeros for the partition function of the Ising model on bounded degree graphs. (arXiv:1810.01699v2 [math.CO] UPDATED)

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

The seminal Lee-Yang theorem states that for any graph the zeros of the partition function of the ferromagnetic Ising model lie on the unit circle in $\mathbb C$. In fact the union of the zeros of all graphs is dense on the unit circle. In this paper we st Tweet

## Robustness of spectral methods for community detection. (arXiv:1811.05808v2 [cs.DS] UPDATED)

2019-06-27 03:30:00 @ cs.DS updates on arXiv.org

The present work is concerned with community detection. Specifically, we consider a random graph drawn according to the stochastic block model~: its vertex set is partitioned into blocks, or communities, and edges are placed randomly and independently of e Tweet

## FAA Finds New Risk on 737 Max

2019-06-27 01:40:24 @ Hacker News 200

Article URL: https://www.bloomberg.com/news/articles/2019-06-26/faa-finds-new-risk-on-737-max-and-orders-boeing-to-make-changes Comments URL: https://news.ycombinator.com/item?id=20290449 Points: 230 # Comments: 129 Tweet

## Terawatt-Scale Photovoltaics

2019-06-27 01:34:01 @ John Carlos Baez

Here’s a cool paper which seems to be freely available: • Nancy M. Haegel et al., Terawatt-scale photovoltaics: transform global energy, Science 364 (2019), 836–838. Important topic! Here’s the abstract: Solar energy has the potenti Tweet

## Terawatt-Scale Photovoltaics

2019-06-27 01:34:01 @ Physics Phorums

Here’s a cool paper which seems to be freely available: • Nancy M. Haegel et al., Terawatt-scale photovoltaics: transform global energy, Science 364 (2019), 836–838. Important topic! Here’s the abstract: Solar energy has the potenti Tweet

## Brave Improves Its Ad-Blocker Performance with New Engine in Rust

2019-06-27 00:35:37 @ Hacker News 200

## Why is Stack Overflow trying to start audio?

2019-06-26 22:24:22 @ Hacker News 200

Article URL: https://meta.stackoverflow.com/questions/386487/why-is-stack-overflow-trying-to-start-audio Comments URL: https://news.ycombinator.com/item?id=20288768 Points: 635 # Comments: 279 Tweet

## Why Arabic Is Terrific (2011)

2019-06-26 19:52:09 @ Hacker News 200

Article URL: https://idlewords.com/2011/08/why_arabic_is_terrific.htm Comments URL: https://news.ycombinator.com/item?id=20287374 Points: 238 # Comments: 139 Tweet

## Next steps toward Go 2

2019-06-26 19:03:56 @ Hacker News 200

Article URL: https://blog.golang.org/go2-next-steps Comments URL: https://news.ycombinator.com/item?id=20286880 Points: 277 # Comments: 176 Tweet

## 150k Small Business Website Teardown 2019

2019-06-26 18:04:38 @ Hacker News 200

## ‘Pre-bunk’ game reduces susceptibility to disinformation

2019-06-26 17:03:10 @ Hacker News 200

Article URL: https://www.cam.ac.uk/research/news/fake-news-vaccine-works-pre-bunk-game-reduces-susceptibility-to-disinformation Comments URL: https://news.ycombinator.com/item?id=20285669 Points: 313 # Comments: 172 Tweet

## The Simple Idea Behind Einstein’s Greatest Discoveries

2019-06-26 16:50:55 @ Quanta Magazine

Lurking behind Einstein’s theory of gravity and our modern understanding of particle physics is the deceptively simple idea of symmetry. But physicists are beginning to question whether focusing on symmetry is still as productive as it once was. Tweet

## Fuck hard work

2019-06-26 16:28:13 @ Signal vs. Noise

If I have to listen to one more banal ode to “hard work”, I’m going to puke. It’s such a trite tribute that keeps getting heaped on anyone who’s ever become even mildly successful, as though it was somehow this unique aspect of their achievement. The first Tweet

## Real-world dynamic programming: seam carving

2019-06-26 16:20:37 @ Hacker News 200

Article URL: https://avikdas.com/2019/05/14/real-world-dynamic-programming-seam-carving.html Comments URL: https://news.ycombinator.com/item?id=20285242 Points: 316 # Comments: 51 Tweet

## The Curse Of The Tech Founder

2019-06-26 15:49:17 @ Business of Software Blog

It’s a tale as old as… computers. Imagine the scene – you are a bright, tech-savvy entrepreneur and you create a tech product. You know it’s brilliant – it’s clever, it’s complicated to build, it’s simple to Tweet

## Is There a Cure for Cambridge Disease?

2019-06-26 15:47:18 @ Business of Software Blog

An old colleague saw this on the first page of April Dunford’s book on Product Positioning. She laughed and said, “That should be called Cambridge Disease, the inability to articulate why anyone should care as much as you about your clever tech Tweet

## Category theory for data science: cautious optimism

2019-06-26 15:37:54 @ The Endeavour

I’m cautiously optimistic about applications of category theory. I believe category theory has the potential to be useful, but I’m skeptical of most claims to have found useful applications. Category theory has found useful application, especia Tweet

## The Toyota Way

2019-06-26 15:35:52 @ Hacker News 200

Article URL: https://en.wikipedia.org/wiki/The_Toyota_Way Comments URL: https://news.ycombinator.com/item?id=20284837 Points: 314 # Comments: 188 Tweet

## Consumers Are Becoming Wise to Your Nudge

2019-06-26 14:35:16 @ Hacker News 200

Article URL: https://behavioralscientist.org/consumers-are-becoming-wise-to-your-nudge/ Comments URL: https://news.ycombinator.com/item?id=20284298 Points: 221 # Comments: 286 Tweet

## Iceland tire of tourists trashing their nature

2019-06-26 14:19:01 @ Hacker News 200

Article URL: https://www.bbc.com/news/world-europe-48703462 Comments URL: https://news.ycombinator.com/item?id=20284189 Points: 238 # Comments: 231 Tweet

## I was seven words away from being spear-phished

2019-06-26 13:33:14 @ Hacker News 200

Article URL: https://robertheaton.com/2019/06/24/i-was-7-words-away-from-being-spear-phished/ Comments URL: https://news.ycombinator.com/item?id=20283922 Points: 400 # Comments: 171 Tweet

## HTTP Cats

2019-06-26 13:08:48 @ Hacker News 200

Article URL: https://http.cat/ Comments URL: https://news.ycombinator.com/item?id=20283794 Points: 385 # Comments: 71 Tweet

2019-06-26 11:49:13 @ Hacker News 200

## Advice on Organizing and Running Growth Teams from Dan Hockenmaier and Gustaf Alströmer

2019-06-26 11:15:56 @ YC

Dan Hockenmaier is the founder of the growth strategy firm Basis One. Prior to Basis One he was the Director of Growth Marketing at Thumbtack. You can learn more at BasisOne.com. Tweet

## HTML is the Web

2019-06-26 11:15:29 @ Hacker News 200

Article URL: https://www.petelambert.com/journal/html-is-the-web Comments URL: https://news.ycombinator.com/item?id=20283207 Points: 503 # Comments: 287 Tweet

## A Visual Intro to NumPy and Data Representation

2019-06-26 10:35:05 @ Hacker News 200

Article URL: https://jalammar.github.io/visual-numpy/ Comments URL: https://news.ycombinator.com/item?id=20282985 Points: 323 # Comments: 19 Tweet

## Calgary student has been studying decibel levels in hand dryers since age nine

2019-06-26 10:08:37 @ Hacker News 200

## Ask HN: Can we create a new internet where search engines are irrelevant?

2019-06-26 08:29:51 @ Hacker News 200

If we were to design a brand new internet for today's world, can we develop it such a way that:1- Finding information is trivial2- You don't need services indexing billions of pages to find any relevant documentIn our current internet, we need a big broth Tweet

## A Teenager's IoT worm is bricking thousands of devices

2019-06-26 08:08:41 @ Hacker News 200

Article URL: https://www.zdnet.com/article/new-silex-malware-is-bricking-iot-devices-has-scary-plans/ Comments URL: https://news.ycombinator.com/item?id=20282308 Points: 200 # Comments: 152 Tweet

## Win a free copy of "Lost in Maths" in French

2019-06-26 07:18:00 @ Backreaction

My book “Lost in Math: How Beauty Leads Physics Astray” was recently translated to French. Today is your chance to win a free copy of the French translation! The first three people who submit a comment to this blogpost with a brief explanation of why the Tweet

## Win a free copy of "Lost in Maths" in French

2019-06-26 07:18:00 @ Sabine Hossenfelder

My book “Lost in Math: How Beauty Leads Physics Astray” was recently translated to French. Today is your chance to win a free copy of the French translation! The first three people who submit a comment to this blogpost with a brief explanation of why the Tweet

## The first AI universe sim is fast and accurate -- and its creators don't know how it works

(Simons Foundation) For the first time, astrophysicists have used artificial intelligence techniques to generate complex 3D simulations of the universe. The results are so fast, accurate and robust that even the creators aren't sure how it all works. The D Tweet

## The water future of Earth's 'third pole'

(NASA/Goddard Space Flight Center) One-seventh of the world's population depends on rivers flowing from Asia's high mountain ranges for water to drink and to irrigate crops. Rapid changes in the region's climate are likely to influence food and water secur Tweet

## Computer scientists predict lightning and thunder with the help of artificial intelligence

(Saarland University) Together with Germany's National Meteorological Service, the Deutscher Wetterdienst, computer science professor Jens Dittrich and his doctoral student Christian Schön from Saarland University are working on a system that is supposed t Tweet

## ALMA pinpoints the formation site of planet around nearest young star

(National Institutes of Natural Sciences) Researchers using ALMA (Atacama Large Millimeter/submillimeter Array) found a small dust concentration in the disk around TW Hydrae, the nearest young star. It is highly possible that a planet is growing or about t Tweet

2019-06-26 04:39:25 @ Hacker News 200

## The 3D Printer Effect: How a Makers Community Was Born

2019-06-25 23:21:18 @ Gorilla Logic

I have to start this post by making a confession. About a year ago, I really wanted to buy a 3D printer, but after looking at a myriad of options on the web, I decided not to spend my entire Christmas bonus on one… maybe you’ll understand me. I didn’ Tweet

## One great way to celebrate Pride Month: Document LGBTQ history before it’s lost

2019-06-25 20:06:24 @ TED Blog

June 28, 2019, marks the 50th anniversary of the Stonewall uprising, when LGBTQ people and allies fought back in a six-night riot against a police raid on The Stonewall Inn, a gay bar in New York City. Stonewall was not the first time that LGBTQ people too Tweet

## El efecto de la microbiota en el rendimiento deportivo

2019-06-25 19:06:24 @ La Ciencia de la Mula Francis

Muchos atletas achacan al lactato su fatiga muscular en carreras de fondo, como la maratón. Durante el ejercicio físico se recicla lactato en glucosa, su precursor, vía  el ciclo de Cori. […] La entrada El efecto de la microbiota en el rendimiento de Tweet

## Female Founders Office Hours and Happy Hour – July 26

2019-06-25 19:00:09 @ YC

We’re hosting group office hours and a happy hour for female founders on July 26 at the YC office in Mountain View, California. If you’re in the early stages of building a company we’d love to meet you -- anyone from idea stage through Series A is welcome Tweet

## New – VPC Traffic Mirroring – Capture & Inspect Network Traffic

2019-06-25 17:23:49 @ AWS Blog

Running a complex network is not an easy job. In addition to simply keeping it up and running, you need to keep an ever-watchful eye out for unusual traffic patterns or content that could signify a network intrusion, a compromised instance, or some other a Tweet

2019-06-25 16:54:15 @ Signal vs. Noise

17 phrases and suggestions to avoid the common leadership weakness of coming across as too controlling as a manager. Recently, a manager told me how he’d received feedback from his team about his greatest leadership weakness. “I come across as too intense Tweet

## La correlación entre la fibromialgia y la microbiota

2019-06-25 16:26:01 @ La Ciencia de la Mula Francis

La fibromialgia es un síndrome reumatológico que cursa con un dolor crónico y generalizado («duele todo») en músculos, ligamentos y tendones. Aunque su causa es desconocida, su fisiopatología está asociada […] La entrada La correlación entre la fibro Tweet

## Philosophers Debate New ‘Sonic Black Hole’ Discovery

2019-06-25 16:20:10 @ Quanta Magazine

Opinions differ about what recent measurements of a sound-trapping fluid reveal about light-trapping black holes. Tweet

## Software to factor integers

2019-06-25 15:51:11 @ The Endeavour

In my previous post, I showed how changing one bit of a semiprime (i.e. the product of two primes) creates an integer that can be factored much faster. I started writing that post using Python with SymPy, but moved to Mathematica because factoring took too Tweet

## Apply to be a TED2020 Fellow

2019-06-25 14:52:36 @ TED Blog

Since launching the TED Fellows program ten years ago, we’ve gotten to know and support some of the brightest, most ambitious thinkers, change-makers and culture-shakers from nearly every discipline and corner of the world. The numbers speak for them Tweet

## Eni and IBM boost geological data interpretation with AI

2019-06-25 10:00:07 @ IBM Research blog

IBM researchers and geoscientists from Eni, a leading global energy company, are building an augmented intelligence platform based on AI called cognitive discovery to support Eni's decision-making during the initial stages of hydrocarbon exploration, which Tweet

## This Week in Rust 292

2019-06-25 06:00:00 @ This Week in Rust

Hello and welcome to another issue of This Week in Rust! Rust is a systems language pursuing the trifecta: safety, concurrency, and speed. This is a weekly summary of its progress and community. Want something mentioned? Tweet us at @ThisWeekInRust or send Tweet

## Cyanide compounds discovered in meteorites may hold clues to the origin of life

(NASA/Goddard Space Flight Center) Compounds containing iron, cyanide, and carbon monoxide discovered in carbon-rich meteorites by a team of scientists at Boise State University and NASA may have helped power life on early Earth. Tweet

## Hubble finds tiny 'electric soccer balls' in space, helps solve interstellar mystery

(NASA/Goddard Space Flight Center) Scientists using NASA's Hubble Space Telescope have confirmed the presence of electrically-charged molecules in space shaped like soccer balls, shedding light on the mysterious contents of the interstellar medium (ISM) -- Tweet

## SwRI-led team studies binaries to make heads or tails of planet formation

(Southwest Research Institute) A Southwest Research Institute-led team studied the orientation of distant solar system bodies to bolster the 'streaming instability' theory of planet formation. Tweet

## NRL payloads deployed by SpaceX to study space weather and spacecraft propulsion

(Naval Research Laboratory) US Naval Research Laboratory researchers designed and built two science payloads that went up with SpaceX's Falcon 9 Heavy rocket launch on June 25. Tweet

## SwRI scientist develops novel algorithm to aid search for exoplanets

(Southwest Research Institute) Inspired by movie streaming services such as Netflix or Hulu, a Southwest Research Institute scientist developed a technique to look for stars likely to host giant, Jupiter-sized planets outside of our solar system. She devel Tweet

## Dung beetles get wind

(University of the Witwatersrand) Researchers have shown for the first time that these insects use different directional sensors to achieve the highest possible navigational precision in different conditions. Tweet

## Graphene goes to space!

(Graphene Flagship) The Graphene Flagship participates in a sounding-rocket launch in collaboration with the European Space Agency to test the printing of graphene devices in space. The experiment went onboard the MASER 14 rocket, launched earlier today fr Tweet

## Santorini volcano, a new terrestrial analogue of Mars

(FECYT - Spanish Foundation for Science and Technology) One of the great attractions of the island of Santorini, in Greece, lies in its spectacular volcanic landscape, which also contains places similar to those of Mars. A team of European and U.S. scienti Tweet

## Researchers model how octopus arms make decisions (+ video)

(American Geophysical Union) Researchers studying the behavior and neuroscience of octopuses have long suspected that the animals' arms may have minds of their own. A new model being presented at the 2019 Astrobiology Science Conference, co-hosted by AGU a Tweet

## Conceptual model can explain how thunderstorm clouds bunch together

(University of Copenhagen) Understanding how the weather and climate change is one of the most important challenges in science today. A new theoretical study from associate professor, Jan Härter, at the Niels Bohr Institute, University of Copenhagen, prese Tweet

## Star tours

(University of California - Riverside) Astronomers have a new tool in their search for extraterrestrial life -- a sophisticated bot that helps identify stars hosting planets similar to Jupiter and Saturn. Tweet

## Tokyo Tech-led study shows how icy outer solar system satellites may have formed

(Tokyo Institute of Technology) Beyond the orbit of the planet Neptune, there are a multitude of icy and rocky small bodies, smaller than planets but larger than comets. These likely formed at the same time as the Solar System, and understanding their orig Tweet

## Thunderbolt of lightning, gamma rays exciting

(University of Tokyo) University of Tokyo graduate student Yuuki Wada with colleagues from Japan discover a connection between lightning strikes and two kinds of gamma-ray phenomena in thunderclouds. The research suggests that in certain conditions, weak g Tweet

2019-06-25 02:00:00 @ objc.io

In our latest Swift Talk episode, Asynchronous Networking with SwiftUI, we show a technique for loading data on demand using the Tiny Networking library from previous episodes. We start by creating an endpoint for the network resource we’re interested in. Tweet

## Statement by The Apache Software Foundation Board of Directors

2019-06-25 01:48:35 @ ASF

It is with a mix of sadness and appreciation that the ASF Board accepted the resignations of Board Member Jim Jagielski, Chairman Phil Steitz, and Executive Vice President Ross Gardler last month. As an ASF co-founder, Jim has held every officer position Tweet

## AWS Security Hub Now Generally Available

2019-06-25 01:33:46 @ AWS Blog

I’m a developer, or at least that’s what I tell myself while coming to terms with being a manager. I’m definitely not an infosec expert. I’ve been paged more than once in my career because something I wrote or configured caused a security concern. When sys Tweet

## AWS Control Tower – Set up & Govern a Multi-Account AWS Environment

2019-06-25 01:27:48 @ AWS Blog

Earlier this month I met with an enterprise-scale AWS customer. They told me that they are planning to go all-in on AWS, and want to benefit from all that we have learned about setting up and running AWS at scale. In addition to setting up a Cloud Center o Tweet

## Kolide

2019-06-24 23:49:12 @ Daring Fireball

My thanks to Kolide for sponsoring last week at Daring Fireball. Kolide believes you don’t need to spy on your users or cripple their devices to meet your compliance and security goals. To that end, Kolide recently launched a new product that integrates wi Tweet

## Taking risk without risking everything

2019-06-24 20:20:55 @ Signal vs. Noise

Sometimes it’s really fucking hard to trust yourself. Especially when you’re likely to be wrong about some part of the decision. Question becomes which part, and to what degree. I’m in the middle of a number of these types of decisions right now. It Tweet

2019-06-24 19:23:30 @ AWS Blog

The Network Load Balancer is designed to handle tens of millions of requests per second while maintaining high throughput at ultra low latency, with no effort on your part (read my post, New Network Load Balancer – Effortless Scaling to Millions of Request Tweet

## What’s in a Name? Taxonomy Problems Vex Biologists

2019-06-24 17:30:14 @ Quanta Magazine

Researchers struggle to incorporate ongoing evolutionary discoveries into an animal classification scheme older than Darwin. Tweet

## Don’t buy the hiring lottery

2019-06-24 15:57:54 @ Signal vs. Noise

It’s never easy looking for a job. Trotting through shitty, vague, unrealistic openings that are frequently been written by people thrice removed from those you’ll eventually be working with. Then hoping to hear back from the black hole that is the applica Tweet

## The Day the Duplicates Died

2019-06-24 15:13:12 @ joecieplinski's blog

It’s almost hard to believe I wrote this post about duplicate track issues in iTunes and iCloud Music Library way back in December 2017, and yet, in the shipping version of iTunes today, that bug is still present.Not a day goes by since I wrote that post ( Tweet

## 30 years from now, what will a next larger particle collider have taught us?

2019-06-24 13:54:00 @ Backreaction

The year is 2049. CERN’s mega-project, the Future Circular Collider (FCC), has been in operation for 6 years. The following is the transcript of an interview with CERN’s director, Johanna Michilini (JM), conducted by David Grump (DG). DG: “Prof Michilin Tweet

## 30 years from now, what will a next larger particle collider have taught us?

2019-06-24 13:54:00 @ Sabine Hossenfelder

The year is 2049. CERN’s mega-project, the Future Circular Collider (FCC), has been in operation for 6 years. The following is the transcript of an interview with CERN’s director, Johanna Michilini (JM), conducted by David Grump (DG). DG: “Prof Michilin Tweet

## Swift Property Wrappers

2019-06-24 09:00:00 @ NSHipster

Swift property wrappers go a long way to making SwiftUI possible, but they may play an even more important role in shaping the future of the language as a whole. Tweet

## Are you smarter than a 5th grade amoeba?

2019-06-24 07:03:00 @ Computational Complexity

(title of this blog is due to Henry Baker who posted an article about this elsewhere) Amoeba finds approx solution to TSP in linear time:here. Over the years we have seen models of computation that claim to solve NPC or other hard problems quickly. I ask Tweet

## NASA makes dual investment in ocean worlds research at WHOI

(Woods Hole Oceanographic Institution) The National Aeronautics and Space Administration (NASA) will invest in a major new research program headquartered at the Woods Hole Oceanographic Institution (WHOI) that pulls together some of the nation's leading ex Tweet

## Carnegie Mellon physicist Rachel Mandelbaum named 2019 Simons Investigator

(Carnegie Mellon University) Carnegie Mellon University physicist Rachel Mandelbaum has been named a 2019 Simons Investigator by the Simons Foundation. The Simons Investigator program provides research support to outstanding scientists, enabling them to un Tweet

## Galaxy clusters caught in a first kiss

(RIKEN) For the first time, astronomers have found two giant clusters of galaxies that are just about to collide. This observation can be seen as a missing 'piece of the puzzle' in our understanding of the formation of structure in the Universe, since larg Tweet

## 'Bathtub rings' around Titan's lakes might be made of alien crystals

(American Geophysical Union) The frigid lakeshores of Saturn's moon Titan might be encrusted with strange, unearthly minerals, according to new research being presented at the 2019 Astrobiology Science Conference, June 24-28, co-hosted by AGU and NASA in B Tweet

## Smash and grab: A heavyweight stellar champion for dying stars

(The University of Hong Kong) PNe theoretically derive from stars in the range 1-8 times the mass of the sun, representing 90% of all stars more massive than the sun. However, until now, PNe have been proven to derive from stars born with only 1-3 times th Tweet

## Resonance-enhanced tunneling induces F+H2 reaction in interstellar clouds

(Chinese Academy of Sciences Headquarters) Scientists from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences and their collaborators investigated the mechanism of rapid reactivity of the F + H2 reaction at low temperature a Tweet

## Computer Science Gender Gap

2019-06-24 00:33:38 @ Gödel's Lost Letter and P=NP

NY Times article on the paper LinkedIn source Lucy Lu Wang is the lead author of a paper released this Friday on gender parity in computer science. The paper is from the Allen Institute for Artificial Intelligence. The authors are Wang, Gabriel Stanovsky, Tweet

## La pesadilla de las WIMPzillas estériles

2019-06-23 09:38:29 @ La Ciencia de la Mula Francis

La pesadilla para quienes buscan la partícula que explica la materia oscura tiene nombre: WIMPzilla estéril. Una hipotética partícula X con una masa en la escala GUT que solo interacciona […] La entrada La pesadilla de las WIMPzillas estériles fue es Tweet

## The tale of Xcode projects' complexity

2019-06-23 02:00:00 @ Pedro Piñera

This is a short story of how Xcode projects can end up being very complex and hard to maintain. Tweet

## Making public keys factorable with Rowhammer

2019-06-22 00:24:34 @ The Endeavour

The security of RSA encryption depends on the fact that the product of two large primes is difficult to factor. So if p and q are large primes, say 2048 bits each, then you can publish n = pq with little fear that someone can factor n to recover p and q. B Tweet

## Report from SoCG

2019-06-22 00:09:00 @ 0xDE

As I mentioned in my previous post, I just finished attending the Symposium on Computational Geometry in Portland. The conference proceedings are open access through LIPIcs. Tweet

## Cockroach and the Source Available Future

2019-06-21 21:36:40 @ tecosystems

Earlier this month, the database company Cockroach Labs relicensed its flagship database product. This is notable for two reasons. Most obviously, the company is following in the footsteps of several of its commercial open source database peers such as Con Tweet

## Cockroach and the Source Available Future

Earlier this month, the database company Cockroach Labs relicensed its flagship database product. This is notable for two reasons. Most obviously, the company is following in the footsteps of several of its commercial open source database peers such as Con Tweet

## Google Is Done Making Its Own Tablets

2019-06-21 19:57:09 @ Daring Fireball

JR Raphael, writing for Computerworld: To be clear, Google hadn’t actually announced any tablet-specific products this year; the last such item that made its way to the market was the Pixel Slate in 2018. But, as I learned today, the company did have two Tweet

## iOS Dev Weekly - Issue 409 - Jun 21st 2019

2019-06-21 19:54:57 @ iOS Weekly

Comment We've all had a couple of weeks now to get used to the fact that the future of Apple platform development is much more declarative and reactive than it was before the WWDC announcements. I think most people w Tweet

## Planck 2018 (VII): Sobre las anomalías en la polarización del fondo cósmico de microondas

2019-06-21 18:43:21 @ La Ciencia de la Mula Francis

En julio de 2018 se publicó «El legado de Planck», LCMF, 01 dic 2018; faltaban los artículos 5, 7 y 9 de los 12 esperados en el PR3 (Planck Release […] La entrada Planck 2018 (VII): Sobre las anomalías en la polarización del fondo cósmico d Tweet

## Text2Scene: Generating Compositional Scenes from Textual Descriptions

2019-06-21 17:16:33 @ IBM Research blog

At CVPR 2019, IBM researchers introduce techniques to interpret visually descriptive language to generate compositional scene representations from textual descriptions. The post Text2Scene: Generating Compositional Scenes from Textual Descriptions appeared Tweet

## 5 Obviously Awesome Takeaways from April Dunford’s New Positioning Book

2019-06-21 14:41:41 @ Business of Software Blog

“You’ve got a cool product, but nobody understands it. You think it’s simple, but customers don’t. They compare your products with those that are nothing like it.” Ouch. From page 1 of Obviously Awesome: How To Nail Product Po Tweet

## The Apache News Round-up: week ending 21 June 2019

2019-06-21 11:36:28 @ ASF

Happy Friday, everyone. Let's take a look at how the past week has progressed: ASF Board –management and oversight of the business affairs of the corporation in accordance with the Foundation's bylaws. - Next Board Meeting: 17 July. Board cale Tweet

## FreeBSD 11.3-RC2 Available

2019-06-21 10:00:00 @ FreeBSD news

The second RC build for the FreeBSD 11.3 release cycle is now available. ISO images for the amd64, armv6, arm64, i386, powerpc, powerpc64, and sparc64 architectures are available on most of our FreeBSD mirror sites. Tweet

## Podcast CB S&R 220: océano de Europa, dinamo solar, galaxias ultradifusas y fondo cósmico de microondas

2019-06-21 09:38:09 @ La Ciencia de la Mula Francis

He participado en el episodio 220 del podcast Coffee Break: Señal y Ruido [iVoox, iTunes], titulado “Ep220: ”, 20 jun 2019. “Todos los comentarios vertidos durante la tertulia representan únicamente la opinión de quien los hace… […] La entrada Podcas Tweet

## Hubble captures elusive, irregular galaxy

(NASA/Goddard Space Flight Center) IC 10 is a remarkable object. It is the closest-known starburst galaxy, meaning that it is undergoing a furious bout of star formation fueled by ample supplies of cool hydrogen gas. Tweet

## Bounds on the nth prime

2019-06-21 05:48:15 @ The Endeavour

The nth prime is approximately n log n. For more precise estimates, there are numerous upper and lower bounds for the nth prime, each tighter over some intervals than others. Here I want to point out upper and lower bounds from a dissertation by Christian Tweet

## photostream 121

2019-06-21 00:12:00 @ Martin Fowler

Plitvice, Croatia (2018) Tweet

## Using GraalVM to Build Minimal Docker Images for Java Applications

2019-06-20 23:05:55 @ AWS Open Source News

Optimizing the size of Docker images has several benefits. One of these is faster deployment times, which is very important if your application needs to scale out quickly to respond to an unexpected traffic burst. In this post, I’ll show you an interesting Tweet

## Ya se ha publicado el JCR 2018 con los nuevos índices de impacto de revistas

2019-06-20 20:32:31 @ La Ciencia de la Mula Francis

Hoy se ha publicado el nuevo Journal of Citation Reports, JCR 2018 (a veces llamado JCR del 2019). Recopila 11 877 revistas con índice de impacto (impact factor), de las que […] La entrada Ya se ha publicado el JCR 2018 con los nuevos índices de impa Tweet

## Portland street art

2019-06-20 19:04:00 @ 0xDE

I’ve been in Portland, Oregon this week for Computational Geometry Week. Here are a few photos of local street art, the first set I’ve taken with my new Pixel 3 XL cellphone (I neglected to bring an actual camera for this trip): Tweet

## Google Pay and PayPal expand their integration to give merchants more ways to accept payments online

Posted by Jose Ugia, Google Developers Engineer We’re thrilled to announce we’ve expanded our collaboration with PayPal to make payments easy and seamless no matter how or where your customers like to shop. Now, you’ll be able to accept PayPal with Google Tweet

## Amazonians at OSCON 2019: A Week of Open Source

2019-06-20 17:53:18 @ AWS Open Source News

AWS is happy once again to be a Diamond sponsor at OSCON, and we’re looking forward to seeing you there! We’ve got a busy schedule this year, including an Open@Amazon day (Tuesday) open to all OSCON 2019 pass holders. Schedule MONDAY, July 15 10:00am–10:25 Tweet

## Work at a Startup Expo on 6/29: Female Founder & Engineer Mixer

2019-06-20 17:21:33 @ YC

If you’re a woman engineer and you’re interested in meeting with female YC founders & engineers, we’re hosting a small mixer immediately before the Work at a Startup Expo — at 12 PM on 6/29 and hosted at the same venue. Tweet

## When Magic Is Seen in Twisted Graphene, That’s a Moiré

2019-06-20 17:20:54 @ Quanta Magazine

What do moiré patterns seen in optics, art, photography and color printing have to do with superconducting layers of graphene? Tweet

## The Urban/Rural Collegiality Divide

2019-06-20 15:18:00 @ Computational Complexity

Just a reminder that Grigory Yaroslavtsev has taken over the Theory Jobs Spreadsheet. Check out who is moving where and let everyone know where you will continue your research career. In 1999 when I considered leaving the University of Chicago for Tweet

## Overcoming Challenges In Automated Image Captioning

2019-06-20 15:00:59 @ IBM Research blog

At CVPR 2019, IBM researchers introduce an improved method to bridge the semantic gap between visual scenes and language to produce diverse, creative and human-like captions. The post Overcoming Challenges In Automated Image Captioning appeared first on IB Tweet

## Converting between nines and sigmas

2019-06-20 13:20:25 @ The Endeavour

Nines and sigmas are two ways to measure quality. You’ll hear something has four or five nines of reliability or that some failure is a five sigma event. What do these mean, and how do you convert between them? Definitions If a system has fives nines Tweet

## 10 Years of Balsamiq: What I’ve Learned | Peldi Guilizzoni, Balsamiq | BoS USA 2018

2019-06-20 11:36:17 @ Business of Software Blog

Peldi Guilizzoni, Founder/CEO, Balsamiq In 2018, Balsamiq celebrated its 10th Birthday – an impressive achievement for any SaaS company. Founder Peldi has attended Business of Software every year since 2010, and has 5 BoS talks to his name. In his ta Tweet

## Clever Ideas Are Not Enough For Innovation | Tendayi Viki, Author | BoS Europe 2018

2019-06-20 10:26:29 @ Business of Software Blog

Tendayi Viki, Author Innovation is hard. It takes more than a clever idea to make a business. Tendayi Viki works with entrepreneurs in startups and large corporates who are looking to innovate. Here he presents 8 business model questions to consider when a Tweet