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Posts

April 20, 2014

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1:00 AM | Problemi per Pasqua 2014
Stavolta i problemi sono da Aha! Solutions, di Martin EricksonThe post Problemi per Pasqua 2014 appeared first on Il Post.

April 19, 2014

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8:17 PM | Radical Philosophy and the Free Alabama Movement
Last summer, thousands of prisoners in California launched a 60-day hunger strike to protest and transform oppressive policies in the California Department of Corrections. One member of the organizing team called their strike action a “multi-racial, multi–regional Human Rights Movement to challenge torture.” This weekend, another prisoner-led human rights movement...
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3:49 PM | First earth-sized exoplanet found in habitable zone.
Astronomers have found the first Earth-sized planet located in the habitable zone of a star — the right distance away to host liquid water and possibly life. Story here. The system is only about 500 light years away. This of course raises the issue of the Fermi paradox: if there...
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2:11 PM | Weekend reads: How to rescue science, what “censorship” really means, worst paper of the year?
Another very busy week at Retraction Watch. There were a lot of gems elsewhere. Here’s a sampling: Biomedical research in the U.S. must be rescued, write four heavy hitters in PNAS. It’s “time to confront the dangers at hand and rethink some fundamental features of the US biomedical research ecosystem.” “If you’re yelled at, boycotted, […]
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5:00 AM | Elections piège(s) à équation(s)
Si le vote est privé, les votes sont publics. Mais que veut dire public ? - Billets des habitués
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5:00 AM | MoreOrLess: Magic Numbers 18 Apr 14
Do you have a favourite number - one you love, one you think stands out from all the others? Author Alex Bellos joins us to talk about his quest to find the world's favourite number and discuss whether numbers really can be magical, mystical and memorable, or whether it's all mumbo jumbo. Why are odd numbers so appealing? Which number strikes fear into some people's hearts? And why do lists of questions like these always come in threes? This programme was first broadcast on the BBC World […]
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2:45 AM | Good post on Vox about issues with ordinal variables
This was a very good article tackling the issues of trying to assign an ordinal score to a multi-dimensional variable.  Mark has been saying this for years, already, but it is good to see statements like this coming out of more mainstream groups:The problem with ordinal rankings — and the more variables, the more problems here — is that it implies meaningful differences between one job and the next one that is one ranking below it. You can definitively say that one job pays more than […]

April 18, 2014

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7:56 PM | Q: Why are many galaxies, our solar system, and Saturn’s rings all flat?
Physicist: This may be the shortest answer yet: “accretion“. Accretion is the process of matter gravitationally collapsing from a cloud of dust or gas or (usually) both.  Before thinking about what a big cloud of gas does when it runs … Continue reading →
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7:45 PM | Deleuze on Learning and Skill
When it comes to learning, Deleuze argues that “it is so difficult to say how someone learns.” (DR 23). More dramatically, Deleuze adds, there “is something amorous – but also something fatal – about all education.” (DR 23). In learning to drive a stick shift car, for example, it is...
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5:00 PM | Authors retract study suggesting magnesium prevents Alzheimer’s in mice
The authors of a 2013 Journal of Neuroscience study suggesting that “elevation of brain magnesium…may have therapeutic potential for treating [Alzheimer's disease] in humans” have retracted it after finding errors in the work. Here’s the original abstract: Profound synapse loss is one of the major pathological hallmarks associated with Alzheimer’s disease (AD) and might underlie […]
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1:30 PM | Doing the right thing: Physicists retract paper after becoming aware of “a fundamental error”
The authors of a paper in Physical Review Letters have retracted it, after another researcher pointed out a mistake. F. Sattin and D.F. Escande write in the notice for “Alfvénic Propagation: A Key to Nonlocal Effects in Magnetized Plasmas” (which is behind a paywall) that after the paper was published, they “we became aware of […]
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6:03 AM | Brazilian music on Fridays: 'Wave'
I’m in San Diego at the moment for the Pacific APA. Naturally, California rhymes with sea and sun, and in the absence of a California-themed Brazilian song worth posting (of course, there’s this silly one by Lulu Santos), I had to think of the classic ‘Wave’, composed by Tom Jobim...
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5:00 AM | Le débat du 18 : Arts et mathématiques
Les nombreux problèmes qui se posent dans l'enseignement des mathématiques n'indiffèrent personne. Beaucoup de gens en parlent, mais peu les posent de façon concrète. C'est que le débat est déjà difficile à porter auprès de la communauté mathématique, et il l'est encore plus au niveau du public. C'est à cet effet que le site Images des Mathématiques souhaite offrir un espace de discussions ouvert à tous ceux qui se sentent touchés par ces questions. Ils pourront y échanger […]
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3:24 AM | Stem cell researcher in Korea up to half a dozen retractions
Almost two years ago, we brought you — with the help of Trevor Stokes — the story of a stem cell researcher in Korea whose publication record, and career, unraveled after evidence of image manipulation surfaced in her work. We’ve reported on four retractions, all in Antioxidants & Redox Signaling, by Soo-Kyung Kang, formerly of Seoul […]
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2:00 AM | Avril, 3ème défi
Chaque semaine, un défi du calendrier mathématique 2014... - Défis du Calendrier Mathématique 2014 / Carrousel

April 17, 2014

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7:13 PM | Publisher to pulp existing copies of science communication book because of plagiarism
The publisher Taylor & Francis has decided to pulp all existing copies of a 2012 book on science communication, and suspend electronic copies indefinitely, after it became clear that the text was plagiarized from the work of another author. The book, Clear and Concise Communications for Scientists and Engineers, was written by energy and environmental […]
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5:30 PM | Longest experiment sees pitch drop after 84-year wait
The longest-running experiment in the world has for the first time glimpsed a drop of viscous pitch fall – although the event comes too late for one man
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5:08 PM | The Gourmet Ranking and Gender: How Can It Improve?
I noted in another post the apparent difference in impact of the Philosophical Gourmet ranking of one's PhD granting institution on tenure-track placement according to gender, following up on posts elsewhere (here, here, and here). In this post I want to follow up on a speculation that I made in...
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3:30 PM | Heart study retracted because it was submitted without permission of most of the authors
A group of authors in South Korea has lost their 2012 paper in Clinical Cardiology because, well, they weren’t a group after all. The paper, “Correlation of Electrocardiographic Changes and Myocardial Fibrosis in Patients With Hypertrophic Cardiomyopathy Detected by Cardiac Magnetic Resonance Imaging,” came from corresponding author Hyun Suk Yang, of Konkuk University School of […]
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2:30 PM | Computing Hunger worldwide: the Global Hunger Index (GHI)
Introduction   -Are you hungry? -Yeah… I’m always hungry. -How many times did you eat last week? -Dunno, between 3 and 4 times a day I guess -How diverse is the food you usually inhale? -Did my mum ask you to check on me or what? - She did not, but these questions impact all [...]
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1:30 PM | Data highjinx forces retraction of tumor paper in JBC
The Journal of Biological Chemistry has an illuminating retraction notice — we’re happy to be able to say — about a 2001 article from a group of researchers at the National University of Singapore. The paper, “Intracellular acidification triggered by mitochondrial-derived hydrogen peroxide is an effector mechanism for drug-induced apoptosis in tumor cells,” was written […]
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1:00 PM | Gauss, the fox who decided to be a hedgehog
As mentioned before, I'm not entirely comfortable with the fox/hedgehog spectrum -- this isn't a concept that reduces readily to a scalar -- but as long as we're here...One of the minor revelations of the recent discussion of the new 538 was that Andrew Gelman had posted on the subject of foxes and hedgehogs way back in 2005:This got me thinking about statisicians. I think we’re almost all foxes! The leading stasticians over the years all seem to have worked on lots of problems. Even when […]
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12:45 PM | A Glitch in the Maptrix
We must always be on the lookout for glitches in the Matrix—anomalies that give us a fleeting glimpse into the algorithms and data structures of the computer simulation that we call Reality. But there’s also the Maptrix, the alternative reality … Continue reading →
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7:30 AM | Me gustan los triángulos…
Clara Grima repasa algunos de los triángulos más célebres de la Historia […] Leer Entradas relacionadas: Calculando Pi con gotas de lluvia Algunas curiosidades de las expresiones decimales ¿Cuántos números reales hay? ¿Se puede construir una caja con todas sus caras distintas?

April 16, 2014

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6:00 PM | Expression of Concern tarnishes copper oxide paper
Articles, like lawn furniture, aren’t supposed to rust after just two months. But the Journal of Materials Chemistry A has issued an Expression of Concern for a February 2014 paper by a group of chemists from India over possible problems with several figures in the article. The paper, “Hierarchically macro/mesostructured porous copper oxide: Facile synthesis, […]
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4:14 PM | Future Nokia phones could send quantum-coded texts
A new system allows you to carry a quantum cryptographical key generator in your cellphone – and has already been patented by phone-maker Nokia
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3:55 PM | Easy as 1, 2, 3?
The natural numbers, 1, 2, 3, 4, ..., are nice. So what could be nicer than discovering interesting patterns within them? The natural numbers, 1, 2, 3, 4, ..., are nice. We all understand them and we use them countless times every day. So what could be nicer than discovering interesting patterns within them? What secrets do the natural numbers hold?read more
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3:30 PM | Integrity of data “undisputed” in paper pulled for plagiarism
I shot the sheriff But I didn’t shoot no deputy, oh no! Oh! I shot the sheriff But I didn’t shoot no deputy, ooh, ooh, oo-ooh. —Bob Marley A group of pharmacologists in Japan has retracted their 2004 article in the International Journal of Pharmaceutics for plagiarism. But not, they note, for any other reason. […]
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2:20 PM | Simons Institute for the Theory of Computing Opens in Berkeley
The institute brings together researchers to explore the theoretical underpinnings of computer science and its potential to shed light on a wide range of natural phenomena.
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1:30 PM | Multiple data errors force retraction of paper about preemies
A group of neonatal researchers in Caen has lost their 2013 review article in Archives of Disease in Childhood Fetal & Neonatal Edition for a variety of problems with their analysis of the data. The article was titled “NIDCAP in preterm infants and the neurodevelopmental effect in the first 2 years,” and its first author was […]
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