Paper Definition and 999 Threads

Of these fifteen candidates, please indicate the paper or papers which you think will contribute most significantly to future quantum gravity research. Multiple choice is possible in the poll, so please select several if you wish. Chamseddine Connes Noncommutative Geometry as a Framework for...

This is sort of off-topic, but I couldn't find a better forum to ask in. I'm writing a paper for my internship, and I need to refer to one of my professors for purposes of background information. I want to do this in a professional manner. Should I say Professor Xxxx Xxxxxxx, Ph.D.? Should...

Maybe little-bit strange and too specific post. I am trying to find information about this in several forums. Situation: I want to start small manufacturing business. Selfemployment and maybe one or two workers if needed. I want to produce sticky fly paper (in roll, not just board)...

http://arxiv.org/abs/1006.4908 An Explicit Embedding of Gravity and the Standard Model in E8 A. Garrett Lisi 14 pages. For peer review and publication in the "Proceedings of the Conference on Representation Theory and Mathematical Physics." (Submitted on 25 Jun 2010) "The algebraic elements of...

A new paper by Helge Rose and Torsten A-M was recently added to the bibliography and sparked comment. This thread is in case there is any further related comment or discussion. The authors had an interesting conjecture, right at the very end of the paper, on page 15: ==sample excerpt== "At...

Question on wording for paper (re-explained in a second post) In a paper (undergrad thesis type paper) on GR, I have the statement: A vanishing Ricci Tensor, i.e., R_{\mu \nu}=0 is not enough to explicitly define a flat space-time. In the case where the manifold being investigated has...

I'm working on a Paper Helicopter Experiment in school where I'm looking at the deflection angle of the rotors versus the rotational velocity of the copter. I'm having difficulty forming a relationship between the deflection angle and the torque that the helicopter experiences But how exactly...

Dave Mattingly has been a frequent collaborator with Ted Jacobson (his thesis advisor). You know of Jacobson if, for example, you followed the recent discussion of "gravity as entropic force" by Erik Verlinde and others. In 1995 Jacobson derived the Einstein field equation from thermodynamics...

First followups of April1780 (new LQG) paper A new formulation of LQG was given in the arxiv paper 1004.1780 which is easier for me to remember as 2010 April1780 That was quite possibly the most influential QG paper of the year so since I may want to link to it several times I'll think of it...

In Jacobson's famous paper "Thermodynamics of Spacetime: The Einstein Equation of State" (gr-qc/9504004) Phys. Rev. Lett. 75, 1260–1263 (1995) , he wrote the Raychaudhuri equation as (Eq.(4) in his paper): \frac{d\theta}{d\lambda}=-\frac{1}{2}\theta^{2}-\sigma^{2}-R_{ab}k^{a}k^{b} However...

Hi... Wikipedia says that only five percent of the universe is matter that we know... Can anyone tell me a paper where the percentages of visible matter, dark matter and dark energy in the universe are given?

Sometimes I wonder if LQG is as much of a "failure" as string theory, with string theory inability to dimensionally reduce uniquely, and LQG unable to define hamiltonian constraint. Recent paper http://arxiv.org/abs/1005.1866 Large-spin asymptotics of Euclidean LQG flat-space...

Any comments you have on section 8 of http://arxiv.org/pdf/1005.1057 are welcome and could be helpful. Section 8 "Spin Foams with Matter" begins on page 42 of Marcolli's latest paper. ==quote from ToC== 8. Spin foams with matter: almost-commutative geometries 42 8.1. The noncommutative...

Dear All, I am searching for the following paper: A. MACCOLL, J. Proc. Roy. Soc. N.S.Wales 77, 130 (1944). In case someone have this please send me. thanks.

Where is Yukawa's famous paper, Yukawa H 1935 Proc. Phys. Math. Soc. Japan 17 48, available to download? I want to find it somewhere other than from http://ptp.ipap.jp/link?PTPS/1/1" , for which my university doesn't have a subscription. Thanks

Im in High School in New Brunswick, Canada and I am doing an APA research paper on plasma( or at least trying to). And I've been looking around the internet and found some interesting stuff. But basically the only thing I've gotten out of my research( which has been mainly online books/papers)...

I am in need of a scientific review paper which involves the use of quench-flow or stopped-flow techniques, and was written after 1995. However, the only review papers I can find require that you pay to read the article, and I just don't have the funds (being a poor college kid). Are there any...

Hi, Does anyone know of a good SO(10) review paper with the basics of SO(10) model building and its phenomenological implications? I've looked around, but couldn't find anything except for the original Georgi, Nanopolous, Mohapatra,... papers. Any suggestions? Thanks, -Andre

I fear we have a new fad afoot. [PLAIN]http://27.media.tumblr.com/tumblr_l0w5p0aocM1qz50sko1_500.jpg http://heller.tumblr.com/post/521934772/hugo-chavez-toilet-paper

I was wondering how do you know when you have a, what i will call, somewhat 'decent' paper to submit to an undergraduate mathematics journal for publishing?

Solve -r*(T^2 + T + 6) + 1 = 0 4r*(T^2 + T) - T = 0 For T and r One solution is T=0 and r=1/6 There are 2 more. I have T = +- i/(2)0.5 and r = 1/[4(1+T)] But MATLAB is disagreeing with my solutions, can anyone rectify them for me please?

Writing papers usually takes a long time and have many small revision. It is especially true when it comes to collaborate with other people because someone may hold the paper for a very long time. So is there a better workflow for collaborative writing? One method is to send the email to the...

First up apologies if this is a violation of a rule or COC. Anyway new paper was published a couple of days ago concerning first flowering dates of flowers in the UK. http://rspb.royalsocietypublishing.org/content/early/2010/04/01/rspb.2010.0291.full" A report on it was published in...

This paper was a "sleeper" for much of the past 16 years. But in the past 12 months, since March 2009, it has received 8 citations. Just random fluctuation or can we point to something that stirred up interest? http://arxiv.org/abs/gr-qc/9406019 Von Neumann Algebra Automorphisms and...

[FONT="Comic Sans MS"]Hello! I'm writing a paper on Einstein's special theory and Einstein himself for my high school freshman science class; I was told this would be the best place to post it. I'm trying to make my explanation clear; if it's not, suggestions on how to improve it would be...

A paper cup shpaed as a frustum of a cone with R_2=1.3R_1 is designed to have a volume of 240 cm3. Determine R_1 and height hof the cup such that the least amount of paper will be used for making the cup. The problem must be done in MATLAB, so please keep that in mind. We have learned commands...

Hello I am looking for a certain paper by Albert Einstein (sometime between 1905 and 1920), where Einstein discusses Entropy - in this paper, he presents entropy, but then says that the term in the exponential or logarithm (cant remember which) need to be dimensionless. So he divides the term...

Of these fifteen candidates, please indicate the paper or papers which you think will contribute most significantly to future quantum gravity research. Multiple choice is possible in the poll, so please select several if you wish. Newest papers are listed first. In some cases, a pair of related...

If you went to a university, but did not graduate and are no longer in any classes, and you do not work for them, do you still put "University of [x]" on the title page of a scientific paper? Thanks, Jake

Hi, I need to write a 4000 word math research paper and I'm looking for a topic. Some sample topics that were given are, Solving the problem: A piece of land of a square shape with dimensions 10m x 10m is divided into 100 square parcels with dimensions 1m x 1m. Initially, 9 of the parcels...

I recently decided for some reason to re-read some of the first part, the kinematical part, of Einstein’s initial paper on relativity, “The Electrodynamics of Moving Bodies”, in which he develops the conceptual framework of special relativity and derives the Lorentz transformations. I must have...

Hey everybody, this is not exactly a homework question, but I am writing a term paper on the topic of laser trapping and cooling, and would appreciate any good sources that anyone could provide. This is an undergraduate thermal physics class, and does not need to be extremely technical...

Well, word has just come through so I'm going to announce it here. I'm now officially a published physicist! If you really go into the details it isn't quite as impressive as might appear at first glance, but hey. I'll accept congratulations in any case! :approve: I'm very pleased, but to...

a-) In 1954 Linus Pauling was awarded the Chemistry Nobel Prize for his work on the nature of the chemical bond. Covalent bonds are one example of intramolecular bonding. Explain the formation of the following: i) \sigma (sigma) bonding ii) \pi (pi) bonding iii) double bonds iv) triple...

Hi guys, Not actually a mathematics question as such (sorry) but does anyone know where i can get my hands on a copy of Chen's paper "On the representation of a large even integer as the sum of a prime and the product of at most two primes". For the life of me all i can find is references to it...

Hey guys, I'm completely new to these forums, but I'm hoping someone here can help me out. I'm a Junior in high school, and I basically need some help with the 7 page research paper I'll have to write. I love physics in general, mostly quantum physics, particle physics, theories of...

http://arxiv.org/abs/1002.1497 :-p :smile: :smile: I just mentioned RCHO in other thread, and an article appears. Very predictive, I am :-DDDI haven't read it. I will not, most probably, in a few days. But I feel it could be place for a thread on the topic of relationship between unification and...

Its becoming more common for journals to have preprint repository sections...i.e. even nature are doing it for neuroscience, and i noticed some respectable scientists are just using this channel to publish stuff at preprint then get colleagues to review, and then not bothering to publish if that...

When I did my undergraduate thesis, my project was a small part of a larger project being done by an MSc. student at the time. We obviously both had the same supervisor. This student completed his MSc. degree a few months ago, and I have since learned from him that he and his supervisor have...

Hello. What avoid us to insert our hands on a wall for example? i think its the electron force of each atoms right? so is it possible to construct a matrix of electrons, that will make a thin layer of electrons where a think paper can float ? Maybe an electron emission or something...

Has anyone read and digested "Alternatives to dark matter: Modified gravity as an alternative to dark matter" by Jacob D. Bekenstein? http://arxiv.org/abs/1001.3876

Homework Statement I have a heavy ball on a piece of paper on the floor. The paper is grabbed and moved horizontally with acceleration a. What is the acceleration of the center of the ball? The ball is assumed to not slip with respect to the paper. Homework Equations The Attempt...

Czes discussion re Compton wavelength and new Smolin paper These are posts from the bibliography thread (which has enough to do just listing the new papers, without discussing them :biggrin:)

Homework Statement My physics teacher is making us do an egg drop after only being in school for two weeks. We can only use up to four 8.5" x 11" sheets of regular computer paper and as much tape as we want. The tape cannot be used as more than a form of attachment. Meaning that the tape...

I'm slowly working my way through what I need to really understand the Bell papers. Everyone says that a good start is the EPR paper. I understand that Einstein may not have read the final version before publication and may not even have wanted his name appended (sort of convoluted logic and...

Hi, I have my AS Maths exam on Monday and so I was looking at some previous papers and I couldn't do this question: The quadratic equation (k+1)x² + 12x + (k-4) = 0 has real roots (a) Show that k² - 3k - 40 ≤ 0 I don't even understand where to start so I was hoping you could help me...

i must write paper on big bang theory but i don't really know what should be included. i am from korea and the words are so confusing. maybe if i had a brief outline i understand more better. thanks physicists

Homework Statement the mass of a paper clip is approximately? Homework Equations it is mutiple choice but i don't know if there an equation for it the mass of a paper clip is apporoximately? 1) 1 x 10 exponenet(6) kg 2) 1 x 10 exponenet(3) kg 3) 1 x 10 exponenent(-3) kg 4) 1 x...

Of these twelve candidates, please indicate the paper or papers which you think will contibute most significantly to future research in 4D quantum gravity. Multiple choice is possible in the poll, so pick several if you wish. Barrett Fairbairn Hellmann http://arxiv.org/abs/0912.4907 Quantum...

Interesting development. We already knew nonstring QG at UC Davis, but hadn't heard of LQG research in the UC Berkeley physics department. The acknowledgments thanked Rovelli among others, for discussions and hospitality---at least one of the authors must have visited Marseille and Pavia* while...