Primes as a Service on Twitter

Our friend Andrew Eckford has spent some time over the holiday improving his Twitter bot Primes as a Service. He launched it in late Spring of 2016, but has added some new functionality over the holidays. It can be relatively handy if you need a quick answer during a class, taking an exam(?!), to settle a bet at a mathematics tea, while livetweeting a conference, or are hacking into your favorite cryptosystems.

General Instructions

Tweet a positive 9-digit (or smaller) integer at @PrimesAsAService. It will reply via Twitter to tell you if the number prime or not.

Some of the usable commands one can tweet to the bot for answers follow. (Hint: Click on the buttons with the tweet text to auto-generate the relevant Tweet.)

If you ask about a prime number with a twin prime, it should provide the twin.

Pro tip: You should be able to drag and drop any of the buttons above to your bookmark bar for easy access/use in the future.

Happy prime tweeting!

The Daily 202: Key dates to put on your calendar for 2017 | The Washington Post

Read The Daily 202: Key dates to put on your calendar for 2017 by James Hohmann (Washington Post)
Summits, elections, anniversaries and other momentous dates for Trump’s first year

David Fahrenthold tells the behind-the-scenes story of his year covering Trump | The Washington Post

Read David Fahrenthold tells the behind-the-scenes story of his year covering Trump by David Fahrenthold (Washington Post)
A reporter reveals how he investigated Trump’s claims on his donations to charity.

The dirty secret about your clothes | The Washington Post

Read The dirty secret about your clothes: Making them is toxic to people and the environment. Start-ups in India see a better way. But will we pay for it? by Esha Chhabra (Washington Post)

AUROVILLE, India — In the Colours of Nature dye house, Vijayakumar Varathan is busy prepping a vat of indigo. At 51, he looks frail, with a tanned body made mostly of bones, but he runs to and fro, setting up an open fire where he’ll brew cauldrons of natural colorants made from plants.He’s worked here for 15 years. But until his early 30s, Varathan mixed chemicals in a conventional clothing factory in the same region of southern India. There he developed a disease that caused layers of his skin to peel off. Even today, it is discolored. “It was pretty bad,” he says, in his fragmented English. “But I didn’t have a choice.”

🔖 Emerging Frontiers of Neuroengineering: A Network Science of Brain Connectivity

Bookmarked Emerging Frontiers of Neuroengineering: A Network Science of Brain Connectivity (arxiv.org)
Neuroengineering is faced with unique challenges in repairing or replacing complex neural systems that are composed of many interacting parts. These interactions form intricate patterns over large spatiotemporal scales, and produce emergent behaviors that are difficult to predict from individual elements. Network science provides a particularly appropriate framework in which to study and intervene in such systems, by treating neural elements (cells, volumes) as nodes in a graph and neural interactions (synapses, white matter tracts) as edges in that graph. Here, we review the emerging discipline of network neuroscience, which uses and develops tools from graph theory to better understand and manipulate neural systems, from micro- to macroscales. We present examples of how human brain imaging data is being modeled with network analysis and underscore potential pitfalls. We then highlight current computational and theoretical frontiers, and emphasize their utility in informing diagnosis and monitoring, brain-machine interfaces, and brain stimulation. A flexible and rapidly evolving enterprise, network neuroscience provides a set of powerful approaches and fundamental insights critical to the neuroengineer's toolkit.
17 pages, 6 figures. Manuscript accepted to the journal Annual Review of Biomedical Engineering [1]

References

[1]
D. Bassett S., A. Khambhati N., and S. Grafton T., “Emerging Frontiers of Neuroengineering: A Network Science of Brain Connectivity,” arXiv, 23-Dec-2016. [Online]. Available: https://arxiv.org/abs/1612.08059. [Accessed: 03-Jan-2017]

🔖 A Physical Basis for the Second Law of Thermodynamics: Quantum Nonunitarity

Bookmarked A Physical Basis for the Second Law of Thermodynamics: Quantum Nonunitarity (arxiv.org)
It is argued that if the non-unitary measurement transition, as codified by Von Neumann, is a real physical process, then the "probability assumption" needed to derive the Second Law of Thermodynamics naturally enters at that point. The existence of a real, indeterministic physical process underlying the measurement transition would therefore provide an ontological basis for Boltzmann's Stosszahlansatz and thereby explain the unidirectional increase of entropy against a backdrop of otherwise time-reversible laws. It is noted that the Transactional Interpretation (TI) of quantum mechanics provides such a physical account of the non-unitary measurement transition, and TI is brought to bear in finding a physically complete, non-ad hoc grounding for the Second Law.
Download .pdf copy

Free Web Development & Performance Ebooks

Bookmarked Free Web Development & Performance Ebooks (oreilly.com)
The Web grows every day. Tools, approaches, and styles change constantly, and keeping up is a challenge. We've compiled the best insights from subject matter experts for you in one place, so you can dive deep into the latest of what's happening in web development.

🔖 100 years after Smoluchowski: stochastic processes in cell biology

Bookmarked 100 years after Smoluchowski: stochastic processes in cell biology (arxiv.org)
100 years after Smoluchowski introduces his approach to stochastic processes, they are now at the basis of mathematical and physical modeling in cellular biology: they are used for example to analyse and to extract features from large number (tens of thousands) of single molecular trajectories or to study the diffusive motion of molecules, proteins or receptors. Stochastic modeling is a new step in large data analysis that serves extracting cell biology concepts. We review here the Smoluchowski's approach to stochastic processes and provide several applications for coarse-graining diffusion, studying polymer models for understanding nuclear organization and finally, we discuss the stochastic jump dynamics of telomeres across cell division and stochastic gene regulation.
65 pages, J. Phys A 2016 [1]

References

[1]
D. Holcman and Z. Schuss, “100 years after Smoluchowski: stochastic processes in cell biology,” arXiv, 26-Dec-2016. [Online]. Available: https://arxiv.org/abs/1612.08381. [Accessed: 03-Jan-2017]

Reply to Manton Reece: This morning I launched the Kickstarter project for Micro.blog. Really happy with the response. Thank you, everyone!

Replied to Manton Reece (manton.org)
This morning I launched the Kickstarter project for Micro.blog. Really happy with the response. Thank you, everyone!
Manton, I’ve been following your blog and your indieweb efforts for creating a microblogging platform for a while. I’m excited to see your Kickstarter effort doing so well this afternoon!

As a fellow IndieWeb proponent, and since I know how much work such an undertaking can be, I’m happy to help you with the e-book and physical book portions of your project on a voluntary basis if you’d like. I’ve got a small publishing company set up to handle the machinery of such an effort as well as being able to provide services that go above and beyond the usual low-level services most self-publishing services might provide. Let me know if/how I can help.

📺 Watched The 128th Rose Parade Presented by Honda

Watched The 128th Rose Parade Presented by Honda from KTLA
KTLA’s live-stream of the 128th Rose Parade Presented by Honda in Pasadena occurred Monday, Jan. 2, 2017. It marked our 70th consecutive broadcast of the parade, which this year had the theme “Echoes of Success.” KTLA's live-stream of the 128th Rose Parade Presented by Honda in Pasadena occurred Monday, Jan. 2, 2017. It marked our 70th consecutive broadcast of the parade, which this year had the theme "Echoes of Success." Our "band cam," a raw feed of the parade’s bands, presented by Jack in the Box, is below:
Missing Bob Eubanks and Stephanie Edwards…

Somehow I overslept and missed the B2 Bomber flying over the house on the way to kick off the parade.

🔖 900 Free Audio Books: Download Great Books for Free | Open Culture

Bookmarked 900 Free Audio Books: Download Great Books for Free (openculture.com)
Download Free Audio Books of great works by Twain, Tolstoy, Hemingway, Orwell, Vonnegut, Nietzsche, Austen, Shakespeare, Asimov, HG Wells & more...

1200 Free Online Courses from Top Universities | Open Culture

Bookmarked 1200 Free Online Courses from Top Universities (openculture.com)
Download 1200 free online courses from the world's top universities -- Stanford, Yale, MIT, & more. Over 30,000 hours of free audio & video lectures.

Don Katz’s letter about Ralph Ellison’s influence

Read Don Katz's letter about Ralph Ellison's influence by Don Katz (audible.com)

Dear Listener,During the winter of 1971 I was a freshman at NYU, and I read two books that changed me. The first was Faulkner’s The Sound and the Fury—a book I read in a single afternoon-to-dawn sitting. The second was Invisible Man, an astonishingly artful and complex work of literature written by a man I heard was actually teaching a course at NYU the next semester.

Over the next three years, after Ralph Ellison allowed me into a small seminar focused on the American vernacular, and a year after that, when he took me on as a tutee every Wednesday afternoon until I graduated, one of the greatest of all American writers taught me how to read. Ralph also helped me gain the courage and occasional insight to write, and I went on to make a living as a writer for 20 years after that. Ralph encouraged me and spoke up for me publicly until he died in 1994.

I learned from Ralph Ellison that Americans worked to create an identity from a synthesis of divergent cultures. We created a distinctive way of talking and telling stories, which led to the distinctive voice in the way we wrote. I understood from Ralph that the American experience derived from the process of a nation constantly making and remaking itself, a place that needed to create its own myths and art and even its own sounds because we had to. While Ralph Ellison taught me that Americans needed to create our own archetypes and myths, he also conveyed that in a nation creating itself without kings, a new order was created based on the color of people’s skin.

Because of Ralph I always heard the sound of what I read and what I wrote. Well-composed words sound like music to me, and after being a writer for 20 years, this led directly to an idea that became Audible.com and our 20-years of applying new technologies to the celebration and elevation of the unbridled power of the well-spoken word.

A few feet from my cube is the Ralph Ellison room, and the following is what I wrote about Ralph for the glass wall I see every day: Ralph Ellison’s understanding of the power of the oral tradition and his ability to hear the music in well-wrought arrangements of spoken words informed the vision and mission of Audible from the beginning. Ellison was the teacher and mentor of Audible’s founder. According to Ellison, the way the early American vernacular embraced storytelling around campfires, the braggadocio of our salesmanship, and the sound of our lamenting in the fields became the distinctive voice that defined American novels and our singularly “conscious and conscientious” culture, a culture that created itself “out of whatever it found useful.” Ellison loved the melodies in language and he told stories in a voice that sounded like a coal car coming out of a mine. He loved enormous cigars, jazz, and ideas. In many ways Audible exists to honor his legacy.

Don’t let anyone ever tell you that great teachers can’t direct the course and meaning of a life.

Don Katz

CEO, Founder of Audible