The Free Online Scientific Calculator :: Encalc The Notices solicited the following article describing the work of Daniel Spielman, recipientof the 2010 Nevanlinna Prize. The International Mathematical Union also issued a newsrelease about the prize, which appeared in the December 2010 issue of the Notices (Notices of the American Mathematical Society, October 2011, Volume 58, Number 9). Shing-Tung Yau and Steve Nadishttp - Publicado em Notices of the AMS - September 2011 Volume 58 Issue 08This article is adapted from a talk that Shing-TungYau gave at the University of California, Berkeley,on February 10, 2011. The talk was written by Yauand Nadis, based on their book, The Shape of InnerSpace (Basic Books, 2010). Both the talk and the bookare presented from Yaus perspective, with the storytold in Yaus voice. (continua). Integrity Under Attack: The State of Scholarly PublishingDecember 4, 2009 , SIAM NewsTalk of the SocietyDouglas N. ArnoldScientific journals are surely important. They provide the most effective means for disseminating and archiving scientific results, and so are a key part of an enterprise on which our health, security, and prosperity ultimately depend. Publications are used by universities, funding agencies, and others as a primary measure of research productivity and impact. They play a decisive role in hiring, promotion, and salary decisions, and in the ranking of departments, institutions, even nations. With big rewards tied to publication, it is not surprising that some people engage in unethical behavior, abuse, and downright fraud. Still, when I started to look at the issues more closely, I was appalled by what I found. In this column, I give a few troubling examples of misconduct by authors and by journals in applied mathematics. One conclusion I draw is that common bibliometrics---such as the impact factor for journals and citation counts for authors---are easily manipulated not only in theory, but also in practice, and that their use in ranking and judging should be curtailed. (read more) 31/05/2011Por Elton AlissonAgencia FAPESP Na natureza, enxames de vaga-lumes enviam sinais luminosos uns para os outros. Isso e feito inicialmente de forma autonoma, individual e independente e, sob determinadas circunstancias, pode dar origem a um fenomeno robusto de natureza coletiva chamado sincronizacao. Como resultado, milhares de vaga-lumes piscam em unissono, de forma ritmada, emitindo sinais luminosos em sincronia com os demais. (continua em Ordem no caos | Agencia FAPESP :: Especiais) eX using MathJax on BloggerUPDATE: MathJax has started hosting their own CDN powered byAmazon's CloudFront service. The Javascript has been updated to use this.A few months ago I had come across MathJax, a powerful Javascript engine that lets you display beautiful math in webpages. It turns out that integrating MathJax with Blogger is very easy. Since I don't have access to a server to host MathJax, I am using the official MathJax CDN (alternatively use this or this). To enable MathJax, just drop in (continua em Dysfunctional: LaTeX using MathJax on Blogger )Example: $$\sum_{i=1}^{\infty} \frac{1}{i^2}$$ or inline $\sum_{i=1}^{\infty} \frac{1}{i^2}$. $\LaTeX$ inside blooger is great. May 26, 2011 | Contact: Richard Lewis | 401-863-3766Moon speckBrown scientists found super-tiny melt inclusions in lunar soil