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10:14 PM | Am Belvedere

Filed under: pictures, Running, Travel Tagged: Austria, Baroque architecture, Belvedere, Wien

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9:45 PM | Triangles, Toothpicks and Patterns

This was our visual pattern in Algebra 1 today. They were upset because there were so many triangles. And so many toothpicks. Which then means…there were so many patterns. But the way they saw it was much different than how I saw it. So I listened. J: But where are you getting the triangles? Here’s […]

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9:29 PM | Introducing Tweet-a-Program

In the Wolfram Language a little code can go a long way. And to use that fact to let everyone have some fun, today we’re introducing Tweet-a-Program. Compose a tweet-length Wolfram Language program, and tweet it to @WolframTaP. Our Twitter bot will run your program in the Wolfram Cloud and tweet back the result. One [...]

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9:29 PM | Introducing Tweet-a-Program

In the Wolfram Language a little code can go a long way. And to use that fact to let everyone have some fun, today we’re introducing Tweet-a-Program. Compose a tweet-length Wolfram Language program, and tweet it to @WolframTaP. Our Twitter bot will run your program in the Wolfram Cloud and tweet back the result. One [...]

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9:29 PM | Introducing Tweet-a-Program

In the Wolfram Language a little code can go a long way. And to use that fact to let everyone have some fun, today we’re introducing Tweet-a-Program. Compose a tweet-length Wolfram Language program, and tweet it to @WolframTaP. Our Twitter bot will run your program in the Wolfram Cloud and tweet back the result. One [...]

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From CNSF: The Coalition for National Science Funding (CNSF) thanked Chairman Jay Rockefeller and his colleagues on the Senate Commerce, Science, and Transportation Committee for introducing legislation for reauthorization of the America COMPETES Act. CNSF states that it is pleased with the proposed five-year budget growth for the National Science Foundation (NSF), which acknowledges the importance of [...]

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Adjusting the numbers of various types of molecule in the environment seem to improve the chances of self-replicating life generating spontaneously

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7:54 PM | On Being An Expert

Think about anything you consider yourself an "expert" in - a skill related to your profession, a hobby, a category of trivia or knowledge. How did you become an "expert?" You probably have a certain acumen for learning new things related to your area of expertise, but ultimately, it came down to a decision you made at some point to seek and find knowledge about a topic. And then to do it

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7:02 PM | September 18, 2014

Solution at the bottom of this page.Like this problem? Try our Contest Problem Book series!Exercise your mind daily with a problem from the AMC-8, AMC-10, or AMC-12, provided by Mathematical Association of America's American Mathematics Competitions.

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Euclid: The Game es un juego en el que podemos demostrar nuestra habilidad con las construcciones con regla y compás. La mecánica del mismo es sencilla: en cada uno de los niveles tendremos que realizar una cierta construcción con regla y compás utilizando para ello algunas de las funciones que nos proporciona el magnífico programa […]Entra en Gaussianos si quieres hacer algún comentario sobre este artículo, consultar entradas anteriores o enviarnos un mensaje.Construye
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7:00 PM | A Day in Ancient Egypt

A Day in Ancient Egypt
by Tunokid
http://im-possible.info/english/art/escher-inspired/tunokid.html
Author - http://tuno-kid.deviantart.com/

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You can download the awk file check_and_balance_18_09.awk and play with chemlambda with the priority choice “viral”. This priority choice privileges the moves which increase the number of nodes in favour of those which decrease it. More concretely DIST>BETA>LOC-PR. It is one of the priority choices from the post When priority matters. How to use it: […]

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6:53 PM | More PT Training.

19Sept14 10am HST You are invited. 10am HST more teacher training. All you need is the google vid chat plug in installed...a set of blocks, and 20 bucks.

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6:42 PM | Class Opener – Day 13 – Serenity Now!

Is Mr. Lochel asleep? Today is the first major test for my freshman classes, and for all of them it is their first big test as high schoolers. And after a Back-to-School Night the evening before where I discussed some … Continue reading →

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6:38 PM | Tricky Fingers

How is one supposed to play this exactly? One can neither can play a 14th in the right hand (my hands are not that big) nor play legato parallel 10ths in the left; hence some sort of arpeggiation is required. … Continue reading →

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6:36 PM | Teacher Reflection 180: Day 6

When I walk into math class I feel like a(n) _______________. fill in the blank with a type of animal Explain why you feel like this animal. What are some of your shared traits? What animal do you think would be best for math class? Explain why you think that. I really enjoyed this reflection […]

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6:18 PM | Reflective Teaching: Day 5

Post a picture of your classroom, and describe what you see–and what you don’t see that you’d like to. This is how my classroom currently looks. It is fairly small this year, which is a big change for me from last. I like that I still have tables instead of desks, and the fact that […]

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6:09 PM | Graphing Fractions on the Number Line

Look at the following lines: How would you complete the lines? What is your rationale for it? Where would these lie on the following graph: Explain how you graphed them and how you labeled your graph. What patterns do you notice?Filed under: Number Sense Tagged: fraction, graph, labeling, number line, number sense, pattern

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Adults Try 5th Grade Math
The best comment, easily, of the whole video: “I’m gonna be a horrible father…”

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Are you smarter than a 6th Grader? Take their EQAO math quiz: The Globe and Mail Staff:
Here’s a selection of questions from the Ontario’s 2013-2014 Education Quality and Accountability Office math test given to 6th Grade students last spring.
School-by-school results released Wednesday morning revealed that Toronto’s public and Catholic boards have seen reading and writing scores climb over the past five years compared with the provincial average, while math scores have stagnated, or
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The girls (and one boy) [of the PBS Math Club] who are making math cool: Russ Pitts:
"It was totally out of the blue," says Robertson. "We’d been wanting to work with PBS for a while. Their digital studio is fantastic, really innovative. They came to us and said, ‘We just received a grant from Newman’s Own, and we want to do something on math …"
Here’s a link to the PBS Math Club on YouTube.
[source: mme rss]

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5:49 PM | How to Create New Mathematics

How to Create New Mathematics? Most people don't realize they can create new mathematics. It's an amazing thing. Let's try it.. Our new mathematical object will be a list of two integers and we'll write it like this.. (a,b) where a and b are integers. Why do we write it like this? Because we're the inventors and we can do anything we want. Great, so we've just invented a new mathematical object. Of course, our invention is not much use unless there are some operations we can do with these
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In a recent survey, I asked philosophers about their submissions to journals, to get a sense of what journals people submit to and also what factors might influence their decisions on where to submit papers. Specifically, I wanted to know how frequently people submit their work to the top 5...

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Yesterday, I was teaching students how to find the greatest common factor of two numbers. We start this lesson by using easy numbers to work with (like 10 and 14), list all of the factors, circle the common factors, then determine which of these common factors is the greatest. No big deal.Next, we moved on to bigger numbers (48 and 84), and it became much more challenging. Some students just don't know their times tables that well, especially past ten. 3×16 equals 48? Even I'm a bit sketchy on […]

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5:30 PM | Shamer shaming

This post is by Phil Price. I can’t recall when I first saw “shaming” used in its currently popular sense. I remember noting “slut shaming” and “fat shaming” but did they first become popular two years ago? Three? At any rate, “shaming” is now everywhere…and evidently it’s a very bad thing. When I first saw […]
The post Shamer shaming appeared first on Statistical Modeling, Causal Inference, and Social Science.

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5:09 PM | Add Math to Your Open House

Back-to-school usually brings with it an open house for parents and guardians to come in meet the teacher and see the classroom. As a classroom teacher I always encouraged the students to come to the open house along with their parents*, giving the students the opportunity to act as docents or guides for the occasion, […]

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Prices for a bundle of basic goods in areas of the Liberian capital Monrovia hit by Ebola are about 8% higher than in the unaffected areas, a set of early data collected from the ground show.

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4:43 PM | A song about a knot

Norwegian duo Ylvis have just released a music video about… well, essentially it’s about physical knot theory. It’s about tying “the greatest knot of them all”, the Trucker’s hitch. This is great! Knots looking cool in semi-mainstream media! A completely unrelated thing I’m chuffed about is that, a week ago, I broke my 2004 record of 550km […]

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4:10 PM | Is it time for a retraction penalty?

The title of this post is the headline of our most recent column in LabTimes, which begins: As we write this in mid-August, Nature has already retracted seven papers in 2014. That’s not yet a record – for that, you’d have to go back to 2003’s ten retractions, in the midst of the Jan Hendrik […]

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4:00 PM | A Network of Intelligent DER

Energy and the environment are probably the most critical and massive problems of our times. The transformation of our energy system into a more sustainable form will take decades, determination, and sacrifices. In the case of power networks, several powerful trends are driving major changes. In this post, we will look at two of them. […]

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On Saturday, I arrived in Columbus, Ohio for the the MBI Workshop on the Ecology and Evolution of Cancer. Today, our second day started. The meeting is an exciting combination of biology-minded mathematicians and computer scientists, and math-friendly biologist and clinicians. As is typical of workshops, the speakers of the first day had an agenda […]

Baker AM, Cereser B, Melton S, Fletcher AG, Rodriguez-Justo M, Tadrous PJ, Humphries A, Elia G, McDonald SA, Wright NA & Simons BD (2014). Quantification of crypt and stem cell evolution in the normal and neoplastic human colon., Cell reports, 8 (4) 940-7. PMID: 25127143

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One of the exciting things in reading philosophy, its history in particular, is experiencing the tension between different schools of thought. This excitement turns to beauty if a clear synthesis emerges to reconcile the conflicting ideas. In the middle to late 18th century, as the Age of Enlightenment was giving way to the Romantic era, […]

Post, E.L. (1936). Finite combinatory processes -- formulation 1., Journal of Symbolic Logic, 1 (3) 103-105.

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In effetti questa è (o dovrebbe essere) la versione estesa di una conferenza di Philip K. Dick alla convention fantascientifica di Metz, in Francia, nel 1977. Non sono riuscito a trovare trascrizioni dell'intervento realmente fatto dallo scrittore a Metz, ma il video (via Open Culture) è abbastanza differente (non troppo rispetto ai contenuti) rispetto al testo (archive.org) successivamente pubblicato sulla Philip K. Dick Society Newsletter #27.Innanzitutto Dick esprime l'idea alla base di
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Susskind L. (1995). The world as a hologram, Journal of Mathematical Physics, 36 (11) 6377. DOI: http://dx.doi.org/10.1063/1.531249

Bousso R. (2002). The holographic principle, Reviews of Modern Physics, 74 (3) 825-874. DOI: http://dx.doi.org/10.1103/revmodphys.74.825

Bekenstein J. (2008). Bekenstein-Hawking entropy, Scholarpedia, 3 (10) 7375. DOI: http://dx.doi.org/10.4249/scholarpedia.7375

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In effetti questa è (o dovrebbe essere) la versione estesa di una conferenza di Philip K. Dick alla convention fantascientifica di Metz, in Francia, nel 1977. Non sono riuscito a trovare trascrizioni dell'intervento realmente fatto dallo scrittore a Metz, ma il video (via Open Culture) è abbastanza differente (non troppo rispetto ai contenuti) rispetto al testo (archive.org) successivamente pubblicato sulla Philip K. Dick Society Newsletter #27.Innanzitutto Dick esprime l'idea alla base di […]

Susskind L. (1995). The world as a hologram, Journal of Mathematical Physics, 36 (11) 6377. DOI: http://dx.doi.org/10.1063/1.531249

Bousso R. (2002). The holographic principle, Reviews of Modern Physics, 74 (3) 825-874. DOI: http://dx.doi.org/10.1103/revmodphys.74.825

Bekenstein J. (2008). Bekenstein-Hawking entropy, Scholarpedia, 3 (10) 7375. DOI: http://dx.doi.org/10.4249/scholarpedia.7375

Citation

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Bayesian Lasso $$\begin{align*} p(Y_{o}|\beta,\phi)&=N(Y_{o}|1\alpha+X_{o}\beta,\phi^{-1} I_{n{o}})\\ \pi(\beta_{i}|\phi,\tau_{i}^{2})&=N(\beta_{i}|0, \phi^{-1}\tau_{i}^{2})\\ \pi(\tau_{i}^{2})&=Exp \left( \frac{\lambda}{2} \right)\\ \pi(\phi)&\propto \phi^{-1}\\ \pi(\alpha)&\propto 1\\ \end{align*}$$ Marginalizing over \(\alpha\) equates to centering the observations and losing a degree of freedom and working with the centered \( Y_{o} \). Mixing
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Park, T. & Casella, G. (2008). The Bayesian Lasso, Journal of the American Statistical Association, 103 (482) 681-686. DOI: 10.1198/016214508000000337

Figueiredo M.A.T. (2003). Adaptive sparseness for supervised learning, IEEE Transactions on Pattern Analysis and Machine Intelligence, 25 (9) 1150-1159. DOI: http://dx.doi.org/10.1109/tpami.2003.1227989

Armagan A., Dunson D.B. & Lee J. GENERALIZED DOUBLE PARETO SHRINKAGE., Statistica Sinica, PMID: 24478567

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Quasilocal tweeted: @Quasilocal

2014-09-19 05:14:12

freakonometrics tweeted: @freakonometrics

2014-09-19 05:11:12

freakonometrics tweeted: @freakonometrics

"The Data-Visualization Revolution" http://t.co/VlqZzLMOqt

2014-09-19 05:10:54

profkeithdevlin tweeted: @profkeithdevlin

RT @ronhealy: @profkeithdevlin Seen CNN's grafic on Scots #IndyRef ...? As a US-based UK mathematician, you've gotta live this! http://t.co…

2014-09-19 05:00:14

profkeithdevlin tweeted: @profkeithdevlin

RT @kjhealy: Notice, Americans, that even with turnout approaching 90% the news is not full of stories of Scots waiting in line for hours t…

2014-09-19 04:55:32

profkeithdevlin tweeted: @profkeithdevlin

RT @GrahamBM: Be a consumer or be criminalised : Florida bans off-grid living
http://t.co/IGZPaxVesc

2014-09-19 04:54:57

andrescaicedo tweeted: @andrescaicedo

(The problem is open. It is known to be possible when n is a prime power.)

2014-09-19 04:46:42

andrescaicedo tweeted: @andrescaicedo

Given a convex region in R², and a positive integer n, can the region be divided in n convex regions, all with the same area and perimeter?

2014-09-19 04:46:03

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