sexta-feira, 30 de janeiro de 2015

Taking Stock of the Big Bang Theory of Inflation | Quanta Magazine

Taking Stock of the Big Bang Theory of Inflation | Quanta Magazine:


No definitive evidence for cosmic inflation is found, but support remains strong for the theory even as critics highlight its shortcomings as an explanation for how and why the universe began................................................................................


Related Article.




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Polar Express: a massive polar bear took the tube this morning – Now. Here. This. – Time Out London

Polar Express: a massive polar bear took the tube this morning – Now. Here. This. – Time Out London:

https://www.flickr.com/photos/taylorherringpr/16191560298/in/set-72157648171424634

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Amal Clooney defende direitos humanos mas só lhe fazem perguntas sobre roupa - dn - DN

Amal Clooney defende direitos humanos mas só lhe fazem perguntas sobre roupa - dn - DN: "Um jornalista do The Telegraph aproveitou a ocasião para confrontar a advogada com o frenesi em torno da sua imagem e perguntou o que é que tinha vestido. A mulher de George Clooney soltou uma gargalhada, apontou para a sua toga e respondeu: "Estou a vestir um Ede & Ravenscroft", referindo-se à famosa marca britânica que fabrica togas e vestuário para profissionais de justiça desde 1689."

Great sales! Super ties, shirts and suits. Miss it! Nadia's baguette's nearby. A brilliant celery & stilton soup + breadfruit pudding a few yeards ahead... to the right. 


Ede & Ravenscroft

70-72 Trumpington Street
Cambridge, CB2 1RJ


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EUA > Call for Applications for the position of departmental directors, University of Aveiro, Portugal

EUA > Call for Applications for the position of departmental directors, University of Aveiro, Portugal:

Logo

40 anos da UA

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quinta-feira, 29 de janeiro de 2015

Governo recua na avaliação dos centros de investigação | Económico

Governo recua na avaliação dos centros de investigação | Económico:




...uma entidade independente deverá analisar o processo de forma a fazer uma nova avaliação .... Esta decisão foi tomada na sequência de uma reunião de representantes do Conselho de Reitores (CRUP) com o primeiro-ministro e depois de contactos com o presidente da Fundação para a Ciência e Tecnologia e com a tutela. O processo não é reiniciado ....


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Sleeping Beauties in Theoretical Physics: 26 Surprising Insights (Lecture Notes in Physics): Thanu Padmanabhan: 9783319134420: Amazon.com: Books

Sleeping Beauties in Theoretical Physics: 26 Surprising Insights (Lecture Notes in Physics): Thanu Padmanabhan: 9783319134420: Amazon.com: Books:



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Mastering Quantum Mechanics | edX

Mastering Quantum Mechanics | edX:



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Ancient planetary system with its own sun-like star found in the galaxy | Science | The Guardian

Ancient planetary system with its own sun-like star found in the galaxy | Science | The Guardian: "Kepler-444 hosts five Earth-sized planets in very compact orbits, formed 11.2bn years ago making this extrasolar planetary system more than twice as old as our own. Credit: Tiago Campante/Peter Devine"

Kepler

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APOD: 2015 January 28 - Comet Lovejoy in a Winter Sky

APOD: 2015 January 28 - Comet Lovejoy in a Winter Sky: " taken about two weeks ago near Palau village in Spain"

See Explanation.
Moving the cursor over the image will bring up an annotated version.
Clicking on the image will bring up the highest resolution version
available.

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quarta-feira, 28 de janeiro de 2015

A boca do monstro | ESO Portugal

A boca do monstro | ESO Portugal:



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EUA > ERA Stakeholders Joint Statement on the European Fund for Strategic Investments (EFSI)

EUA > ERA Stakeholders Joint Statement on the European Fund for Strategic Investments (EFSI): "The proposal shows the breakdown of funds to be taken from existing budget lines, the first being the “Connecting Europe Facility” (-3.3 billion Euros), dedicated to digital infrastructure development, followed by the Horizon 2020 programme (-2.7 billion Euros, out of a total budget of 70.2 billion Euros). In particular, the European Research Council (ERC), the Marie Sklodowska Curie Actions (MSCA) and the European Institute for Innovation and Technology (EIT), core components of the EU research policy, would be heavily hit over the whole period. For example, the ERC funds could be reduced by 221.2 million Euros and MSCA by about 100 million Euros, while the EIT would contribute 350 million Euros (making for a cut of about 13% of the EIT budget). Research related to Information and Communication Technologies (ICT) would also take a large part of the Horizon 2020 budget cut (306.8 million Euros). "

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Astrofísico ganha um milhão de euros para estudar as equações de Einstein - PÚBLICO

Astrofísico ganha um milhão de euros para estudar as equações de Einstein - PÚBLICO:



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A Scavenger Hunt Exercise to Teach Research Methodologies – ProfHacker - Blogs - The Chronicle of Higher Education

A Scavenger Hunt Exercise to Teach Research Methodologies – ProfHacker - Blogs - The Chronicle of Higher Education: "A Scavenger Hunt Exercise to Teach Research Methodologies"

Stockholm Library

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World Science U - if-the-idea-of-parallel-universes-turns-out-to-be-real-how-could-we-detect-them?!

World Science U:







http://www.worldscienceu.com/science_unplugged/videos/if-the-idea-of-parallel-universes-turns-out-to-be-real-how-could-we-detect-them





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M-Theory via HoTT .........11-dimensional supergravity is exceptional -- in the technical sense of exceptionality in mathematics.

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From a nice post bu U Screiber:
 
Here is a mad title: M-Theory via HoTT and now here is why it might not be so mad after all.

11-dimensional supergravity is exceptional -- in the technical sense of exceptionality in mathematics. For instance its Lagrangian is controled by an exceptional 7-cocycle on a super-Lie 3- algebra which is itself the extension classified by an exceptional 4-cocycle on a super-Minkowski Lie algebra [0]. These numbers 4 and 7 correspond to the numbers 2 and 5 in the statement that in supergravity there is a 2-brane and a 5-brane.

Here is one more way in which 11d SuGra is rather remarkable: a solution to the SuGra equations of motion is precisely and already a higher super-Cartan geometry (locally modeled on extended 11d super-Minkowski spacetime) which is first-order integrable relative to the intrinsic torsion of super-Minkowski space.

This remarkable statement follows from a computation by Howe in 1997 [1]. Remarkable as it is, it doesn't seem to have been followed up much [2]. (But please let me know if I am missing some relevant references here.)

What's remarkable about this statement is that theories of gravity in lower dimension/with less supersymmetry have as solutions also certain Cartan geometries, but subject to further differential equations. Trying to rewrite these equations, or the Lagrangians that they follow from, in a suggestive way is an industry all in itself. For 11d SuGra the statement is simply: once one has a Cartan geometry of the given flavor, then there are no further equations,  no further constraints.

This is curious, because the concept "infinitesimally integrable Cartan geometry relative to a torsion model space" is a concept that is "elementary" in the technical sense: this may be stated (and naturally so) in the internal language of elementary infinity-toposes, (and hence, with enough patience , in homotopy type theory).  Or so I claim in [3].

I spoke about this last week at the MathPhys meeting in Srni [4]. And I will be speaking about it again this Thursday in Göttingen [5].

[0] http://ncatlab.org/schreiber/show/The+brane+bouquet

[1] http://ncatlab.org/nlab/show/torsion+constraints+in+supergravity#Howe97

[2] http://www.physicsoverflow.org/26352/11d-sugra-from-the-torsion-constraint

[3] http://ncatlab.org/schreiber/show/Obstruction+theory+for+parameterized+higher+WZW+terms

[4] http://www.math.muni.cz/~srni/

[5] http://www.uni-math.gwdg.de/grad/Schreiber_29.01.15.html

World-class university research requires cutting-edge infrastructure | Higher Education Network | The Guardian

World-class university research requires cutting-edge infrastructure | Higher Education Network | The Guardian:

Investment newspaper

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DIY labs are an exciting alternative to university science research | Higher Education Network | The Guardian

DIY labs are an exciting alternative to university science research | Higher Education Network | The Guardian:

chemistry lab

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Cracking the code to economic success: social scientists are as vital as engineers | Higher Education Network | The Guardian

Cracking the code to economic success: social scientists are as vital as engineers | Higher Education Network | The Guardian:

Enigma coding machine

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GalileoMobile: sharing astronomy in rural areas | e-EPS

GalileoMobile: sharing astronomy in rural areas | e-EPS:

GalileoMobile Expedition 2013

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UK Government to strengthen Science and Innovation | e-EPS

UK Government to strengthen Science and Innovation | e-EPS:

UK Strategy Plan

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The 100 most international universities in the world 2015 | Features | Times Higher Education

The 100 most international universities in the world 2015 | Features | Times Higher Education:

Globe with interconnected countries

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(Not) Shadows on the hills; (a few days ago) at dusk...on a red wintry January sky

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Another snowy day on top of the hills; (a few days ago) on my ''constitutional'' trail

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APOD: 2015 January 27 - Our Galaxys Magnetic Field from Planck

APOD: 2015 January 27 - Our Galaxys Magnetic Field from Planck:

See Explanation.  Clicking on the picture will download
 the highest resolution version available.

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segunda-feira, 26 de janeiro de 2015

Find a graduate program in the mathematical sciences

Find a graduate program in the mathematical sciences:
A&GF

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QUINTA DE LA ROSA Port LBV 2007 - OUT OF THE BOTTLE - Online portuguese wine shop

QUINTA DE LA ROSA Port LBV 2007 - OUT OF THE BOTTLE - Online portuguese wine shop:

quintadelarosa

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Creating Health - funding strategies in health sciences and more...!


Creating Health








Creating Health



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NO INVERNO APETECE LAREIRA E… VINHO!

http://lifestyle.sapo.pt/sabores/dicas/artigos/no-inverno-apetece-lareira-e-vinho

Nuno Crato recua e universidades vão poder continuar a ser fundação - PÚBLICO

Nuno Crato recua e universidades vão poder continuar a ser fundação - PÚBLICO: "Nuno Crato recua e universidades vão poder continuar a ser fundação"



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Little Mina saved by 3D printer heart | The Sunday Times

Little Mina saved by 3D printer heart | The Sunday Times:

Click to enlarge

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Britain on flood alert for a year of supertides | The Sunday Times

Britain on flood alert for a year of supertides | The Sunday Times:



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APOD: 2015 January 25 - A Twisted Solar Eruptive Prominence

APOD: 2015 January 25 - A Twisted Solar Eruptive Prominence:

See Explanation.  Clicking on the picture will download
 the highest resolution version available.

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