- Concepts of Symmetry in the Work of Wolfgang Pauli
**Axiomatic quantum field theory in curved spacetime**- Hitchin’s connection, Toeplitz operators and symmetry invariant deformation quantization
- Measure problem in cosmology
- The Classical Universes of the No-Boundary Quantum State
- Gauge-String Dualities and Some Applications
- Quantum Field Theory and Differential Geometry
- Les Houches Lectures on Constructing String Vacua
- xPerm: fast index canonicalization for tensor computer algebra
- Properties of the volume operator in loop quantum gravity: I. Results, Properties of the volume operator in loop quantum gravity: II. Detailed presentation
- Loop Quantum Cosmology: Effective theories and oscillating universes
- The Petrov and Kaigorodov-Ozsváth Solutions: Spacetime as a Group Manifold
- Three lectures on classical integrable systems and gauge field theories
- Simons Center for Geometry and Physics at Stony Brook
- Geometric Langlands from a TQFT perspective
- (Generalized) Differential Cohomology and Lie Infinity-Connections
- Mass scientific literacy, Questions
- The Harvard College Mathematics Review
- Alan Sokal: Sense About Science lecture
- Charges and Twisted n-Bundles, I, Charges and Twisted n-Bundles, II
- 254A, Lecture 13: Compact extensions, 254A, Lecture 14: Weakly mixing extensions, 254A, Lecture 15: The Furstenberg-Zimmer structure theorem and the Furstenberg recurrence theorem, 254A, Lecture 16: A Ratner-type theorem for nilmanifolds
- Learning to Love Topos Theory
- Physics, Topology, Logic and Computation: a Rosetta Stone
- PCM article: Ricci flow
- PCM article: Function spaces
- Electric-Magnetic Duality on a Half-Space
- SU(3)xSU(2)xU(1)/Z6… wait, Z6?
- Adventures in phase space

## Archive Page 2

### This week in the arXivs…

- A First Approximation for Quantization of Singular Spaces
- Three lectures on classical integrable systems and gauge field theories
- Lecture notes on Chern-Simons (super-)gravities. Second edition (February 2008)
- Matters of Gravity, The Newsletter of the Topical Group in Gravitation of the American Physical Society, Volume 31, Winter 2008
- Do confinement and darkness have the same conceptual roots?
- From Dual Models to String Theory
- Topological Entanglement Entropy in Chern-Simons Theories and Quantum Hall Fluids
- Philosophical Transactions A: Maxwell 150 years on
- Interpreting the Hecke Algebra
- Something Certain About Uncertainty

Einstein argued that there must be simplified explanations of nature, because God is not capricious or arbitrary. No such faith comforts the software engineer.

— Fred Brooks

- Harvard podcast: Computer Science E-1: Understanding Computers and the Internet
- SP terá 3ª área metropolitana mais populosa do mundo em 2010, diz ONU
- Criminalidade está diminuindo no Brasil, destaca jornal dos EUA: Mayor in Brazil transforms ‘deadliest’ town: It has fallen from sixth to 298th on the country’s Violence Map
- Demanda doméstica alimenta crescimento do Brasil, diz ‘FT’: Domestic demand fuels Brazil’s growth — Brazil cracks down on Amazon loggers, Bovespa and BM&F in merger talks,
**Brazil’s secrets of big oil discoveries stolen**, Higher ore prices bolster Vale bid for Xstrata,**Byzantine taxes sap Brazil’s business spirit**,**Brazil’s progress**,**Business as usual in Brazilian credit markets** **Why isn’t University free?**,**Criticism is overrated**- The Pintadas Project
- Learn 10 good UNIX usage habits

### The century of self…

### Desaquecimento Global

Mario Persona falando sobre política global — alguém sabe dizer quem é o segundo maior produtor de armas do mundo?!

Vodpod videos no longer available. from www.youtube.com posted with vodpod

### Experimental Philosophy…

Vodpod videos no longer available. from bloggingheads.tv posted with vodpod

Here’s the fortune cookie:

Never offend people with style when you can offend them with substance.

— Sam Brown, “The Washington Post”, January 26, 1977

😈

As for the interesting bit: Architecture is politics: community building and the success of Wikipedia.

I found this post (by Michael Nielsen) quite interesting, but maybe not for the reason people normally would: I just thought the “thesis” of this post was something well known. What I mean is the following: a framework like Wiki, Zope/Plone, Drupal, etc, they all have different *modus operandi*, i.e., they were all designed to harness the power of the collective in slightly different ways. That means that each of these designs follows a different “policy” of community building; while some may think that every single user should have the same “weight”, some may adopt the policy of ‘roles’, where different groups of users have different tasks within the community.

This is not a judgement of value of these different frameworks. However, each of them imply certain “choices” that were made with a given “community building ideal” in mind. So, in this sense, it seems clear to me that the particular architecture of the software used should reflect the “politics” behind it.

But, maybe this is clearer to me because of all those years listening to RMS… 😉

[]’s.

**Updated (24-Feb-08):** This piece at Slate may have something to add to this discussion: The Wisdom of the Chaperones: Digg, Wikipedia, and the myth of Web 2.0 democracy.

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