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Here is another excellent review, this time from David Goss. In his review of a paper by Pink and Schieder, Goss gives not just a good description of what’s in the paper, but also tells us about where the results come … Continue reading →

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7:00 PM | #mathsTLP Summary 4th October 2015

Here is this week’s #mathsTLP shared planning and resources: Starters 4th October Lesson 1: Area and Perimeter Lesson 2: Recurring Decimals Into Fractions Lesson 3: Surds Lesson 4: Introducing completing the square Lesson 5: Reviewing Averages

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Each week, we would like to invite readers of Stats Chat to submit nominations for our Stat of the Week competition and be in with the chance to win an iTunes voucher. Here’s how it works: Anyone may add a comment on this post to nominate their Stat of the Week candidate before midday Friday […]

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If you’d like to comment on or debate any of this week’s Stat of the Week nominations, please do so below!

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6:58 PM | Impossible triangles in origami

Origami works by Alessandro Beber
http://im-possible.info/english/art/misc/origami/alessandro-beber.html#2
Author - https://www.flickr.com/photos/30452866@N06/

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6:34 PM | All-seeing eye in impossible triangle

Tattoo by Jose No
http://im-possible.info/english/art/misc/tattoo/jose-no.html
Author - https://instagram.com/chapi9999/

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5:44 PM | The Only Person You Can Trust is YOU

If you don't believe it, it might as well not be true. But you can still work while you wonder.

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البرهان بفصل الحالات تصحيح التمرين 4 في ما يلي حل متراجحة تحتوي على الجذر مربع وذلك باستعمال تقنية الاستدلال بفصل الحالات، من درس مبادئ في المنطق، للاولى باك كل الشعب العلمية.2sqrt(x^2-5x+6)<=2x-3جزء8 : الاستدلال بالخلف ملخص الدرس + تمرين مصححجزء9 : الاستدلال بفصل الحالات ملخص
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4:28 PM | The Small-Town Lottery That Went Viral

The Small-Town Lottery That Went Viral: Elliot Hannon:At first, the small-town lottery inched along without much fanfare. Each weekend, volunteers sold tickets at the Inverness Legion, and each weekend the jackpot ticked slightly higher. It took over a month to add the first thousand dollars to the pot, and eighteen rounds to push the jackpot above ten thousand dollars. As the purse increased, so did the crowds. This was in part because, unlike a traditional lottery, “Chase the Ace”
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VISIT ME DAILY ON TWITTER AT twitter.com/dmarain

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3:59 PM | حساب نهاية دالة لا جذرية مثال 10

حساب نهاية دالة لا جذرية مثال 10في ما يلي تصحيح التمرين 10 حول فقرة نهاية دالة لا جذرية تحتوي على شكل غير محدد بالجذر مربع، وسيتم من خلال هذا التمرين التعرف على تقنية مهمة جدا في حساب نهاية دالة بالجذر مربع.تصحيح التمرين شاهد ايضا نهاية دالة عددية، درس1 : مفاهيم
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Several years ago I saw some teachers talking about a project with double stuffed Oreo cookies. Sadly, I don’t remember who it was, but just to be clear from the start – this project was not my idea. The neat idea behind this project is pretty simple – do double stuffed Oreos really have double…

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The Board of Governors’ rejection this week of the Faculty Association’s request for accountability in President Gupta’s resignation marks the low point of shared or faculty governance at the University of British Columbia. It’s a shame that UBC sunk to rock bottom … Continue reading →

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Do try out this Free Career Guidance Personality Test at https://career-test.com/s/sgamb?reid=210 while it is still available! Benefits of doing the (Free) Career Test: Get familiar with the top companies in Singapore There are seven distinct career types based on career preferences, goals … Continue reading →

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Yesterday I made a trek to visit my college roommate in Louisville. At least every other year since she was in Law School, we spend the day together at St. James Court Art Fair/Craft Show. It truly is a day I always look forward to. On the drive up, I listened to John Antonetti ‘ […]

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2:28 PM | Από το αυτόνομο στο ιδεολογικό μοντέλο μαθηματικού γραμματισμού μέσω της Περιβαλλοντικής Εκπαίδευσης

No summary available for this post.

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1:30 PM | Weekend reads, part 2: Criminalizing scientific fraud; Nobel Prize folly; boosting impact factor

There were so many items to choose from this week for Weekend Reads — probably because it was Peer Review Week — that we decided to split them into two posts. Here’s part 2: If Volkswagen can be criminally charged, why can’t scientists who commit fraud? asks Richard Smith, a member of the board of […]
The post Weekend reads, part 2: Criminalizing scientific fraud; Nobel Prize folly; boosting impact factor appeared first on Retraction Watch.

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Political scientist Brian Silver points me to his post by economist Paul Romer, who writes: The style that I [Romer] am calling mathiness lets academic politics masquerade as science. Like mathematical theory, mathiness uses a mixture of words and symbols, but instead of making tight links, it leaves ample room for slippage between statements in […]
The post Flamebait: “Mathiness” in economics and political science appeared first on Statistical Modeling, Causal Inference, and
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I've always taught factoring out the GCF of a polynomial the way I was taught to do it. And, historically, my students have always struggled with this. I think they usually get the gist of what we're doing, but they usually struggle with the GREATEST part of GCF. Last year, I saw Jan Lichtenberger's post about using the upside down division method to make factoring the GCF (and a host of other concepts as well) easier. It's like my beloved Birthday Cake Method, but upside […]

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This week, I was making a presentation for Company X and needed to keep abreast of the recent cost per genome figure computed at genome.gov. Well, thanks to a retweet by Michael, it looks like October 1 saw the Second Inflection point we've been waiting for. Time to change the slides and time to think about The Important Things after Commodity Sequencing. Let us note that this cost figure still doesn't seem to include neither Pacific BioSciences RSII nor Oxford Nanopore technology cost.Related:
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12:00 PM | Four Canoes

Four Canoes by Helaman Ferguson, University of St. Thomas, St. Paul, Minnesota.
Ferguson's Four Canoes sculpture consists of two interlocking rings of granite, one red and the other black, sitting on a pair of granite pedestals. Each ring represents a mathematical form called a Klein bottle and can be imagined as a pair of canoes, one inverted and placed atop the other, then sewn

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di diffusione della scienza e rivoluzioni cc @aubreymcfato @CristianCantoro Utilizzare i dati sulle citazioni in Wikipedia per misurare la diffusione dell'open accessScrivevo all'inizio del 2011 per i festeggiamenti del wiki-decennale di una rivoluzione irreversibile. E' stato piuttosto interessante leggere il titolo che technology review ha utilizzato per raccontare dell'ultimo degli articoli dedicati all'enciclopedia libera: Why Wikipedia + Open Access = Revolution.L'idea degli autori, Misha
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Nielsen, F. (2007). Scientific citations in Wikipedia, First Monday, 12 (8) DOI: 10.5210/fm.v12i8.1997

Heather Ford, Shilad Sen, David R. Musicant & Nathaniel Miller (2013). Getting to the source: where does Wikipedia get its information from?, Proceedings of the 9th International Symposium on Open Collaboration, DOI: 10.1145/2491055.2491064

Misha Teplitskiy, Grace Lu & Eamon Duede (2015). Amplifying the Impact of Open Access: Wikipedia and the Diffusion of Science, Wikipedia Workshop at 9th International Conference on Web and Social Media (ICWSM), arXiv: 1506.07608v1

Citation

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After (or before?) @StartsWithABang's balloon animals' post? A couple of week ago Ethan Siegel published a post about ballon animals, so I decide to repost an old piece that I wrote in 2011 for my italian blog: the english version is lost, but it is magically reposted here! Two one-balloon constructions and their associated graphsI recently discovered this interesting site, vihart. In the site there are some interesting paper and today I want to write something about Computational Balloon
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Demaine E.D., Demaine M.L. & Hart V. (2008). Computational balloon twisting: The theory of balloon polyhedra., Proceedings of the 20th Canadian Conference on Computational Geometry (CCCG2008), 139-142.

Bryś K. & Lonc Z. (2009). Polynomial cases of graph decomposition: A complete solution of Holyer's problem, Discrete Mathematics, 309 (6) 1294-1326. DOI: 10.1016/j.disc.2008.01.054

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Supponiamo di doverci confrontare con un animale, ad esempio un cane o un lupo (o più in generale con un animale, addomesticato o selvaggio). Secondo Konrad Lorenz il comportamento aggressivo di un cane viene influenzato da due stati d'animo differenti: l'ira e la paura.Si può allora provare a prevedere il comportamento del cane in funzione di quale dei due stati domina: nel caso in cui l'animale è dominato da paura o da ira, proporre una previsione è abbastanza semplice; nel caso in cui il […]

Zeeman E.C. (1976). Catastrophe Theory, Scientific American, 234 65-83. DOI: 10.1038/scientificamerican0476-65

Jean Petitot (2013). Complexity and self-organization in Turing, The Legacy of A.M. Turing, (E. Agazzi, ed.), Franco Angeli, Milano, 149-182. arXiv: 1502.05328v1

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Non prevedevo di scrivere la versione italiana di un post sull'ultima news proveniente dal RHIC, ma mi è stato gentilmente chiesto, e provvedo ben volentieri. Inizio, però, con un piccolo cappello, alla fine del quale saprete che c'è anche un piccolissimo pezzetto (il doppio diminutivo è perché i firmatari del papero su arXiv sono veramente tanti) d'Italia in questa interessante scoperta.Tutto nasce da un post, nel flusso twittero, di Annalisa Arci, in cui racconta, in maniera e con un […]

Belavina A.A., Polyakova A.M., Schwartza A.S. & Tyupkina Y.S. (1975). Pseudoparticle solutions of the Yang-Mills equations, Physics Letters B, 59 (1) 85-87. DOI: 10.1016/0370-2693(75)90163-X

Hooft G.'. (1976). Symmetry Breaking through Bell-Jackiw Anomalies, Physical Review Letters, 37 (8) DOI: 10.1103/PhysRevLett.37.8

Hooft G.'. (1976). Computation of the quantum effects due to a four-dimensional pseudoparticle, Physical Review D, 14 DOI: 10.1103/PhysRevD.14.3432

Fukushima K., Kharzeev D.E. & Warringa H.J. (2008). The Chiral Magnetic Effect, Physics Review D, 78 (7) DOI: 10.1103/PhysRevD.78.074033

Kharzeev D.E. & Yee H.U. (2011). Chiral Magnetic Wave, Physical Review D, 83 DOI: 10.1103/PhysRevD.83.085007

STAR Collaboration (2015). Observation of charge asymmetry dependence of pion elliptic flow and the possible chiral magnetic wave in heavy-ion collisions, arXiv, arXiv: 1504.02175v2

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A new clue about the #quarkgluonplasma from @RHIC_STAR at @BrookhavenLabWithin the particles that constitute atomic nuclei, protons and neutrons, there are the quarks, the elementary particles with fractional charges, linked to each other thanks to the gluons, bosons that carry the nuclear interaction. Thanks to the gluons it is impossible to observe, at present, free quarks, but it is expected that in the very first stage of the universe, matter was in a state called quark-gluon plasma. Thanks […]

Belavina A.A., Polyakova A.M., Schwartza A.S. & Tyupkina Y.S. (1975). Pseudoparticle solutions of the Yang-Mills equations, Physics Letters B, 59 (1) 85-87. DOI: 10.1016/0370-2693(75)90163-X

Hooft G.'. (1976). Symmetry Breaking through Bell-Jackiw Anomalies, Physical Review Letters, 37 (8) DOI: 10.1103/PhysRevLett.37.8

Hooft G.'. (1976). Computation of the quantum effects due to a four-dimensional pseudoparticle, Physical Review D, 14 DOI: 10.1103/PhysRevD.14.3432

Fukushima K., Kharzeev D.E. & Warringa H.J. (2008). The Chiral Magnetic Effect, Physics Review D, 78 (7) DOI: 10.1103/PhysRevD.78.074033

Kharzeev D.E. & Yee H.U. (2011). Chiral Magnetic Wave, Physical Review D, 83 DOI: 10.1103/PhysRevD.83.085007

STAR Collaboration (2015). Observation of charge asymmetry dependence of pion elliptic flow and the possible chiral magnetic wave in heavy-ion collisions, arXiv: 1504.02175v2

Citation

evelynjlamb tweeted: @evelynjlamb

2015-10-05 03:33:29

evelynjlamb tweeted: @evelynjlamb

RT @wacnt: beat frequency between two instruments playing G4 tuned to 1/4 comma and 1/5 comma mean tone if they're in tune playing C4

2015-10-05 03:30:51

mathhombre tweeted: @mathhombre

RT @PaulaKrieg: The seventeen symmetry groups, all in The Alhambra, the palace in Granada, Spain. https://t.co/wmke6YEzSh

2015-10-05 03:24:48

mathhombre tweeted: @mathhombre

RT @PaulaKrieg: Thinking about number lines again. https://t.co/BC9PNgNktm @TracyZager @Simon_Gregg @mathhombre

2015-10-05 03:24:24

gaussianos tweeted: @gaussianos

RT @camargosky: Encontré este hermoso Blog: ¿Qué es el conjunto de Mandelbrot?: historia y construcción http://t.co/8Bp8My1E8E vía @gaussia…

2015-10-05 02:48:55

j_lanier tweeted: @j_lanier

“No, not ‘nudist’. I said ‘I’m new to this.’”
“Clearly. You’ve still got your clothes on."

2015-10-05 02:44:32

ricardosaenz tweeted: @ricardosaenz

Investigador universitario gana 2° lugar en concurso nacional de fotografía científica - http://t.co/vTfBSsi039 por @AFmedios

2015-10-05 02:21:42

mathhombre tweeted: @mathhombre

RT @Lustomatical: If you like the loop task from @AnnaWeltman that @ddmeyer blogged about last week, I made you a present:
http://t.co/kfZ…

2015-10-05 02:14:57

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