Color superconductivity: Continuity of quark and hadron matter, the role of the strange quark mass, and perturbative results

We summarize some recent results on the structure of QCD at very high baryon density.Comment: 4 pages, to appear in the proceedings of Quark Matter 9

Letter from Thomas Magee & Son\u27s to Helen Muir, 1907 Jul 17.

WILLIAM A MAGEETHOMAS MAGEEFREDERIC E MAGEETHOMAS MAGEE AND SONSREAL ESTATE AGENTSPUBLISHERS OF THE SAN FRANCISCO REAL ESTATE CIRCULARTELEPHONETEMPORARY 563Temporally, 22 GEARY ST.SAN FRANCISCO, CALIFORNIAJuly 17, 1907Mrs. Helen Muir,Martinez, Contra Costa Co.,Cal.Dear Madam:We are offered $3,000 in cash, and lot 25 x 100 on east side of Potrero avenue, between 17th and Mariposa, as shown on diagram enclosed, for your lot 77 x 100 on the northwest corner of Utah and Mariposa.The Potrero-avenue lot, in common with nearly all the balance of the block, some of which is improved, is 12 to 15 feet above grade. Potrero avenue is bituminized, and the Ocean Shore Railroad turns into it at Mariposa, and continues along the avenue for several blocks. In our opinion the valuation of$2,000 for this lot is a trifle high, but it would sell for $1,600 or$1,800 more readily, perhaps, than your corner of Utah and Mariposa would sell for $4,800 or$5,000.The party making this offer is the same who offered $3,500 cash some time ago, and is the only buyer who has made any bona fide offer, or who has evinced any interest in the property. Of course, he would have to agree to convey to you unincumbered title to the Potrero-avenue lot, in the event of your acceptance. His desire is to at once improve the corner of Utah and Mariposa with dwellings, and the neighboring property would naturally derive benefit from this improvement.Please let us hear from you as soon as possible, and oblige,Yours truly,[illegible]JJD0623

Fermionic Quasiparticles in QCD at High Baryon Density

We study fermionic quasi-particles in QCD at very high baryon density. In the normal quark matter phase unscreened magnetic gluon exchanges lead to non-Fermi liquid behavior. Non-Fermi liquid effects manifest themselves in low energy Green functions that depend on logarithms and fractional powers of energy. In the superfluid phase there is an energy gap for fermionic excitations. Quark mass effects can cause the energy gap to vanish. Gapless fermions in the color flavor locked phase cause an instability towards a state with a non-zero supercurrent.Comment: 4 pages, to appear in the proceedings of Quark Matter 2005, Budapest, Aug 4-

Do professors really perpetuate the gender gap in science? Evidence from a natural experiment in a French higher education institution

Stereotypes, role models played by teachers and social norms are known to push girls to choose humanities rather than science. Do professors directly contribute to this strong selection by discriminating more against girls in more scientific subjects? Using the entrance exam of a French higher education institution (the Ecole Normale Supérieure) as a natural experiment, we show the opposite: discrimination goes in favor of females in more male-connoted subjects (e.g. math, philosophy) and in favor of males in more female-connoted subjects (e.g. literature, biology), inducing a rebalancing of sex ratios between science and humanities majors. We identify discrimination by systematic differences in students' scores between oral tests (non-blind toward gender) and anonymous written tests (blind toward gender). By making comparisons of these oral/written scores differences between different subjects for a given student, we are able to control both for a student's ability in each subject and for her overall ability at oral exams. The mechanisms likely to drive this positive discrimination toward the minority gender are also discussed

Smart Home Simulation in the Virtual World

The goal of this project is to produce a \u27smart home\u27 by using IoT and RFID like things in the virtual world to help solve problems. Some of these problems can be CPR training, etc. Used as an evaluation platform of suggested hardware to get a desired (or best fit) set of smart objects, or combinations with computer vision. Cost model to determine best fit based on: accuracy, lowest cost, easiest deployment, etc

Doing what works: a grounded theory case study of technology use by teachers of English at a Korean university

Despite considerable effort and expenditure by the Korean government and universities to promote technology use in tertiary education, few teachers of English in Korea regularly and consistently employ technology in their teaching. Moreover, research into the hindrances and enablers of technology use in English education in Korea has been limited for primary and secondary schools and conspicuously absent on the tertiary level. This case study examines what teachers in a general English department at a private university in Seoul undergo as they consider the use of technology both in and out of classrooms. It attempts to provide a holistic look into teacher decision-making in this context. It employs a grounded theory of investigation underpinned by a close reading of the diffusion of innovations theory by Rogers (2003). Data for the study involves three main techniques: semi-structured interviews, a survey questionnaire, and classroom observations. Analysis follows an iterative, grounded method and includes use of both qualitative and quantitative software programs (Atlas.ti 5.0 and SPSS 16.0 respectively). Results from the study form a substantive theory entitled 'what works' which helps explain the myriad of decisions that teachers make while trying to manage personal (internal) and administrative (external) goals and aims. Further, all decisions within this system are underpinned by 'what works' for teachers in any situation both in terms of reliability and consistency. Implications suggest that the use of technology in the classroom exacerbates preexisting pedagogical and infrastructure issues, leading to inconsistencies in representation and application, as well as an overall limitation of potential use by teachers

Nonaqueous Fluoride/Chloride Anion-Promoted Delamination of Layered Zeolite Precursors: Synthesis and Characterization of UCB-2

The delamination of layered zeolite precursor PREFER is demonstrated under mild nonaqueous conditions using a mixture of cetyltrimethylammonium bromide, tetrabutylammonium fluoride, and tetrabutylammonium chloride in N,N-dimethylformamide (DMF) as solvent. The delamination proceeds through a swollen material intermediate which is characterized using powder X-ray diffraction (PXRD). Subsequent addition of concentrated HCl at room temperature leads to synthesis of UCB-2 via delamination of the swollen PREFER material and is characterized using PXRD, transmission electron microscopy (TEM), and argon gas physisorption, which shows lack of microporosity in UCB-2. ^(29)Si magic angle spinning (MAS) NMR spectroscopy indicates lack of amorphization during delamination, as indicated by the entire absence of Q^2 resonances, and ^(27)Al MAS NMR spectroscopy shows exclusively tetrahedral aluminum in the framework following delamination. The delamination process requires both chloride and fluoride anions and is sensitive to solvent, working well in DMF. Experiments aimed at synthesizing UCB-2 using aqueous conditions previously used for UCB-1 synthesis leads to partial swelling and lack of delamination upon acidification. A similar lack of delamination is observed upon attempting synthesis of UCB-1 under conditions used for UCB-2 synthesis. The delamination of PREFER is reversible between delaminated and swollen states in the following manner. Treatment of as-made UCB-2 with the same reagents as used here for the swelling of PREFER causes the delaminated UCB-2 material to revert back to swollen PREFER. This causes the delaminated UCB-2 material to revert back to swollen PREFER. Altogether, these results highlight delamination as the reverse of zeolite synthesis and demonstrate the crucial role of noncovalent self-assembly involving the zeolitic framework and cations/anions/structure-directing agent and solvent during the delamination process

Universal Quantum Viscosity in a Unitary Fermi Gas

A Fermi gas of atoms with resonant interactions is predicted to obey universal hydrodynamics, where the shear viscosity and other transport coefficients are universal functions of the density and temperature. At low temperatures, the viscosity has a universal quantum scale $\hbar n$ where $n$ is the density, while at high temperatures the natural scale is $p_T^3/\hbar^2$ where $p_T$ is the thermal momentum. We employ breathing mode damping to measure the shear viscosity at low temperature. At high temperature $T$, we employ anisotropic expansion of the cloud to find the viscosity, which exhibits precise $T^{3/2}$ scaling. In both experiments, universal hydrodynamic equations including friction and heating are used to extract the viscosity. We estimate the ratio of the shear viscosity to the entropy density and compare to that of a perfect fluid.Comment: 13 pages, 3 figure