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Beginning Sewing and Fashion Design
AGES: 10-18 years
Would you like to design and make your own clothing? Or want to know tricks of the trade for working with your sewing machine? This class will take you through all the steps to create your own designs, starting with a basic pattern and working through each step along the way. Personal design expression will be encouraged! You can use shared sewing machines provided or bring your own.
Basic fabric provided; optional to purchase your own.
Register Online - CANCELLED
DATES: 6 Tuesdays: February 4 - March 10, 2020
TIME: 8:30 - 10:30am
FEE: $125 + $20 materials fee paid to instructor.
LOCATION: San Luis Obispo Campus Room 4710
INSTRUCTOR: Linda Wilson
QUESTIONS: Contact instructor at email@example.com or (805) 441-2570


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The QCD's never been terribly good with directions - there are plenty of editors who can attest to that.
Our direction-phobia also manifests itself whenever we have to drive somewhere for the first time. We went out to Coca-Cola Park earlier this week for an IronPigs story, and for the life of us, we kept missing one of the official entrances (the one on Union Street, for anyone who's curious). If anyone else is a little confused, here's the official parking diagram, which indicates where the ball park's entrances are.

subset: commoncrawl


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We calculate the effective long-term convective velocity and dispersive motion of an ellipsoidal Brownian particle in three dimensions when it is subjected to a constant external force. This long-term motion results as a "net" average behavior from the particle rotation and translation on short time scales. Accordingly, we apply a systematic multi-scale technique to derive the effective equations of motion valid on long times. We verify our theoretical results by comparing them to numerical simulations.
In this paper we analyze Belief Propagation over a Gaussian model in a dynamic environment. Recently, this has been proposed as a method to average local measurement values by a distributed protocol (Consensus Propagation, Moallemi C. C. and Van Roy B., IEEE Trans. Inf. Theory, 52 (2006) 4753) where the average is available for read-out at every single node. In the case that the underlying network is constant but the values to be averaged fluctuate ("dynamic data"), convergence and accuracy are determined by the spectral properties of an associated Ruelle-Perron-Frobenius operator. For Gaussian models on Erdos-Renyi graphs, numerical computation points to a spectral gap remaining in the large- size limit, implying exceptionally good scalability. In a model where the underlying network also fluctuates ("dynamic network"), averaging is more effective than in the dynamic data case. Altogether, this implies very good performance of these methods in very large systems, and opens a new field of statistical physics of large (and dynamic) information systems.
Using Monte Carlo simulations we verify that the rare-earth compound LiHoF4 is a very good realization of a dipolar Ising model. With only one free parameter our calculations for the magnetization, specific heat and inverse susceptibility match experimental data at a quantitative level in the 0.5-3 kelvin range, including the ferromagnetic transition at 1.53 K. Using parallel tempering methods and reaching system sizes up to 32000 dipoles with periodic boundary conditions, we are able to give evidence of the logarithmic corrections predicted in renormalization group theory. Due to the long range and angular dependence of the dipolar model, sample shape and domains play a crucial role in the ordered state. We consider surface corrections to Griffiths's theorem, which arise infinite macroscopic samples and lead to a theory of magnetic domains. We find a domain wall energy of 0.059 erg/cm(2) and predict that the ground-state domain structure for cylinders with a demagnetization factor N > 0 consists of thin parallel sheets of opposite magnetization, with a width depending on the demagnetization factor.
A variety of social, biological and communication networks can be modelled using graph theoretical tools. Similar graphical tools can be used to model the topology by which disease, errors, and/or other undesired phenomenon etc. is spread and propagated through such networks. Certain network operations are proposed in this work that can be used to slow the spread of diseases in complex network topologies. The approach considered in this work differs from existing techniques in that it is based on optimally removing (or immunizing) individual links in the network as opposed to individual nodes. A systematic algorithm is outlined to achieve this edgewise immunization via a relaxed convex optimization protocol.
We consider the optimization of the average entropy production in inhomogeneous temperature environments within the framework of stochastic thermodynamics. For systems modeled by Langevin equations (e.g. a colloidal particle in a heat bath) it has been recently shown that a space-dependent temperature breaks the time reversal symmetry of the fast velocity degrees of freedom resulting in an anomalous contribution to the entropy production of the overdamped dynamics. We show that optimization of entropy production is determined by an auxiliary deterministic problem formally analogous to motion on a curved manifold in a potential. The "anomalous contribution" to entropy plays the role of the potential and the inverse of the diffusion tensor is the metric. We also find that entropy production is not minimized by adiabatically slow, quasi-static protocols but there is a finite optimal duration for the transport process. As an example we discuss the case of a linearly space-dependent diffusion coefficient.
The vacancy formation Gibbs free energy, enthalpy and entropy in fcc Al, Ag, Pd, Cu, and bcc Mo are determined by first-principles calculations using the quasi-harmonic approximation to account for vibrational contributions. We show that the Gibbs free energy can be determined with sufficient accuracy in a single-volume approach using the fixed equilibrium volume of the defect-free supercell. Although the partial contributions to the Gibbs free energy, namely, the formation enthalpy and entropy exhibit substantial errors when obtained directly in this approach, they can be computed from the Gibbs free energy using the proper thermodynamic relations. Compared to experimental data, the temperature dependence of the vacancy formation Gibbs free energy is accounted for at low temperatures, while it overestimates the measurements at high temperature, which is attributed to the neglect of anharmonic effects.
Premelting of ice within pores in earth materials is shown to depend on the presence of vapor layers. For thick vapor layers between ice and pore surfaces, a nanosized water sheet can be formed due to repulsive Lifshitz forces. In the absence of vapor layers, ice is inhibited from melting near pore surfaces. In between these limits, we find an enhancement of the water film thickness in silica and alumina pores. In the presence of metallic surface patches in the pore, the Lifshitz forces can dramatically widen the water film thickness, with potential complete melting of the ice surface.
We demonstrate a physical mechanism that enhances a splitting of diatomic Li-2 at cellulose surfaces. The origin of this splitting is a possible surface-induced diatomic-excited-state resonance repulsion. The atomic Li is then free to form either physical or chemical bonds with the cellulose surface and even diffuse into the cellulose layer structure. This allows for an enhanced storage capacity of atomic Li in nanoporous cellulose.
We present the theory for a retarded resonance interaction between two identical atoms near a dielectric surface. In free space the resonance interaction between isotropically excited atom pairs is attractive at all atom-atom separations. We illustrate numerically how this interaction between oxygen, sulphur, hydrogen, or nitrogen atom pairs may turn repulsive near water droplets. The results provide evidence of a mechanism causing excited state atom pair breakage to occur in the atmosphere near water droplets.
The ABC flow was originally introduced by Arnol'd to investigate Lagrangian chaos. It soon became the prototype example to illustrate magnetic-field amplification via fast dynamo action, i.e. dynamo action exhibiting magnetic-field amplification on a typical timescale independent of the electrical resistivity of the medium. Even though this flow is the most classical example for this important class of dynamos (with application to large-scale astrophysical objects), it was recently pointed out (Bouya Ismaël and Dormy Emmanuel, Phys. Fluids, 25 (2013) 037103) that the fast dynamo nature of this flow was unclear, as the growth rate still depended on the magnetic Reynolds number at the largest values available so far . Using state-of-the-art high-performance computing, we present high-resolution simulations (up to 40963) and extend the value of Rm up to 5·105. Interestingly, even at these huge values, the growth rate of the leading eigenmode still depends on the controlling parameter and an asymptotic regime is not reached yet. We show that the maximum growth rate is a decreasing function of for the largest values of we could achieve (as anticipated in the above-mentioned paper). Slowly damped oscillations might indicate either a new mode crossing or that the system is approaching the limit of an essential spectrum.
Dynamic wetting of a solid surface is a process that is ubiquitous in Nature, and also of increasing technological importance. The underlying dissipative mechanisms are, however, still unclear. We present here short-time dynamic wetting experiments and numerical simulations, based on a phase field approach, of a droplet on a dry solid surface, where direct comparison of the two allows us to evaluate the different contributions from the numerics. We find that an important part of the dissipation may arise from a friction related to the motion of the contact line itself, and that this may be dominating both inertia and viscous friction in the flow adjacent to the contact line. A contact line friction factor appears in the theoretical formulation that can be distinguished and quantified, also in room temperature where other sources of dissipation are present. Water and glycerin-water mixtures on various surfaces have been investigated where we show the dependency of the friction factor on the nature of the surface, and the viscosity of the liquid.
Liquid infiltrated solids have been proposed as functional solvent-phobic surfaces for handling single and multiphase flows. Implementation of such surfaces alters the interfacial transport phenomenon as compared to a dry substrate. To better understand the interface characteristics in such systems we study experimentally the dynamics of a pendant water drop in air that contacts a substrate coated by thin oil films. At short times the water drop is deformed by the oil that spreads onto the water-air interface, and the dynamics are characterized by inertial and viscous regimes. At late times, the the oil film under the drop relaxes either to a stable thin film or ruptures. In the thin film rupture regime, we measure the waiting time for the rupture as a function of the drop equilibrium contact angle on a dry substrate and the initial film height. The waiting time is rationalized by lubrication theory, which indicates that long-range intermolecular forces destabilize the oil-water interface and is the primary mechanism for the film drainage.
The motion of a three phase contact line, as in a droplet spreading over a dry surface, is ubiquitous in nature and common in technology, but is still not well understood. As has been recently shown, line friction may play an important role in rapid dynamic wetting. Recognizing this as a sometimes dominating factor, we identify the possible scenarios for dynamic wetting of a partially wetting fluid, given the fluid and substrate properties. In doing so, we also reconcile the seemingly different interpretations of dynamic wetting that have been put forward in the recent literature. Copyright (C) EPLA, 2015
The Bohr-van Leeuwen theorem is often summarized as saying that there is no classical magnetic susceptibility, in particular no diamagnetism. This is seriously misleading. The theorem assumes position-dependent interactions but this is not required by classical physics. Since the work of Darwin in 1920 it has been known that the magnetism due to classical charged point particles can only be described by allowing velocity-dependent interactions in the Lagrangian. Legendre transformation to an approximate Hamiltonian can give an estimate of the Darwin diamagnetism for a system of charged point particles. Comparison with experiment, however, requires knowledge of the number of classically behaving electrons in the sample. A new repulsive effective many-body force, which should be relevant in plasmas, is predicted by the Hamiltonian.
We assume a constant current density in a homogeneous one-component plasma of infinite extent and calculate the resulting magnetic energy per particle. Our starting point is the conserved approximately relativistic (Darwin) energy for a system of electromagnetically interacting particles that arises from the neglect of radiation. For the idealized model of a homogeneous one-component plasma the energy only depends on the particle canonical momenta and the vector potential. The vector potential is then calculated in terms of the canonical momenta using recent theoretical advances and the plasma Hamiltonian is obtained. The result can be understood either as due to the energy lowering caused by the attraction of parallel currents or, alternatively, as due to the inductive inertia associated with the flow of net current.
Darwin (1920) noted that when radiation can be neglected it should be possible to eliminate the radiation degrees of freedom from the action of classical electrodynamics and keep the discrete particle degrees of freedom only. Darwin derived his well-known Lagrangian by series expansion in v/c keeping terms up to order (v/c)(2). Since radiation is due to acceleration the assumption of low speed should not be necessary. A Lagrangian is suggested that neglects radiation without assuming low speed. It cures deficiencies of the Darwin Lagrangian in the ultra-relativistic regime.
The interaction between radiation and superconductors is explored in this paper. In particular, the calculation of a plane standing wave scattered by an infinite cylindrical superconductor is performed by solving the Helmholtz equation in cylindrical coordinates. Numerical results computed up to O(77) of Bessel functions are presented for different wavelengths showing the appearance of a diffraction pattern.
The zero-bias conductance of quantum dots coupled to ferromagnetic leads is investigated. In the strong-coupling regime, it is found that the conductance is a non-monotonic function of the angle between the magnetisation directions in the two contacts. This behaviour is an effect of the presence of the leads which induces an angle-dependent spin-split of the quantum dot states, and spin-flip transitions between the quantum dot states whenever the magnetisation directions of the leads are non-collinear, which enhances the current density at the chemical potential. In the weak-coupling regime, the system reverts to normal spin valve character.
Colloidal quantum dots (QDs) have been widely studied for nanophotonics and bioimaging applications for which the lifetime of their fluorescence is of critical importance. We report experimental and theoretical characterizations of dynamic optical properties of multi-shell-coated CdSe/CdS/ZnS QDs. Quantum-mechanical studies of fundamental optical excitations and Monte Carlo simulations of energy relaxation mechanisms indicate that the excitonic states are densely compacted in the QDs and are easily photoexcited by the laser pulse in the presence of nonradiative electron-phonon interactions. For spherical QDs, the decay time of spontaneous radiative emission of individual photoexcited excitonic states with zero angular momenta is found to be only tens of picoseconds. In our multi-shell QDs, high-energy excitonic states of nonzero angular momenta have to go through a number of nonradiative electron-phonon interaction steps in order to relax to zero-angular-momentum excitonic states for radiative emission, resulting in an effective fluorescence peak at about 2 ns in the photoncount-time relationship. This explains the measured long average fluorescence lifetime of 3.6 ns. Such a long lifetime facilitates the applications of colloidal QDs in areas such as QD-based solar cells, bioimaging and metamaterials.
We investigate a social system of agents faced with a binary choice. We assume there is a correct, or beneficial, outcome of this choice. Furthermore, we assume agents are influenced by others in making their decision, and that the agents can obtain information that may guide them towards making a correct decision. The dynamic model we propose is of nonequilibrium type, converging to a final decision. We run it on random graphs and scale-free networks. On random graphs, we find two distinct regions in terms of the finalizing time-the time until all agents have finalized their decisions. On scale-free networks, on the other hand, there do not seem to be such distinct scaling regions.
We investigate theoretically the efficiency of the Rashba effect, i.e. the spin-orbit splitting resulting from an electric field. In contrast to previous studies, where the carriers have usually been taken to be electrons, we focus on holes and are able to demonstrate remarkable improvements of the effect by several orders of magnitude. We also show that the frequently-neglected lattice-mismatch between GaAs and AlGaAs can be used to further enhance the efficiency of the wave vector splitting mechanism. The Rashba effect is the fundamental mechanism behind the Datta-Das spin transistor and we find that for a small electric field of 2 kV/cm the spin precession length becomes only 36nm.
We study how a fraction of a population should be vaccinated to most efficiently stop epidemics. Our starting point is that only local information-about the neighborhood of specific vertices-is usable in practice. For this reason we consider only local vaccination strategies. The efficiency of the vaccination strategies is investigated with both static and dynamic measures. We test the strategies on real-world networks and model networks with real-world characteristics. Among other things, we find that the most efficient strategy for many real-world situations is to iteratively vaccinate the neighbor of the previous vaccinee that has the most links out of the neighborhood.
Many recent large-scale studies of interaction networks have focused on networks of accumulated contacts. In this letter we explore social networks of ongoing relationships with an emphasis on dynamical aspects. We find a distribution of response times (times between consecutive contacts of different direction between two actors) that has a power law shape over a large range. We also argue that the distribution of relationship duration (the time between the first and last contacts between actors) is exponentially decaying. Methods to reanalyze the data to compensate for the finite sampling time are proposed. We find that the degree distribution for networks of ongoing contacts fits better to a power law than the degree distribution of the network of accumulated contacts do. We see that the clustering and assortative mixing coefficients are of the same order for networks of ongoing and accumulated contacts, and that the structural fluctuations of the former are rather large.
Three different vortex glass models are studied by examining the energy barrier against vortex motion cross the system. In the two-dimensional gauge glass this energy barrier is found to increase logarithmically with system size which opens up for the existence of low-temperature phase with zero resistivity. Associated with the large-energy barriers is breaking of ergodicity which explains why the well-established results from equilibrium studies could fail. The behavior of the more realistic random pinning model is however different with decreasing energy barriers and no finite critical temperature.
The electronic structure of AgGaSe2 has been investigated as a photocatalyst candidate by first-principles calculation. Our results demonstrate that the band edge positions of bulk AgGaSe2 straddle the water redox potentials. From the band offset calculation, we find that Al-doping of AgGaSe2 shifts the conduction band minimum upwards, whereas Cu-doping of AgGaSe2 shifts the valence band maximum upwards. By (Ag, Cu)(Ga, Al)Se-2 alloying one can thereby tailor both the band edge positions and the band gap energy, and this effect provides an approach to optimize the band properties for overall water splitting. Moreover, AgGaSe2 forms a suitable junction with CuGaSe2 with a type-II band offset, which facilitates electron-hole separation. The AgGaSe2 and CuGaSe2 junction can be designed as a tandem photoelectrochemical device to improve the photocatalytic properties of the system.
The magnetic and electronic properties of the transition metal (TM) (V, Cr, Mn, Fe, Co, Ni, Cu) doped In2O3 have been theoretically studied by using the density functional theory. When two TM ions are placed close to each other (TM-TM distance of about 3.4 angstrom), the ferromagnetic ordering is found to be the lowest-energy configuration. The only exception is Fe, which possesses a half-filled 3d band. However, for further separation distance of about 7.2 angstrom, only Co, Ni and Cu ions (having more than half-filled 3d band) still prefer the ferromagnetic orientation, while V, Cr, or Mn ions (having less than half-filled 3d band) prefer antiferromagnetic ordering. The energies of the 3d band for TM ions show a decrease with increasing TM atomic number. For V, Cr and Mn, the 3d bands are merged with the conduction band, and show less hybridization with the host valence band; while for Co, Ni and Cu, the 3d bands show strong hybridization with the host valence band mainly formed by the oxygen 2p state. In this situation, polarized holes are formed on the oxygen sites close to the TM ions. Moreover, V-doped In2O3 is found to meet the requirements for a strong donor-mediated ferromagnetism.
The electronic structure and magnetic properties of In2O3 with four kinds of intrinsic point defects (O vacancy, In interstitial, O interstitial, and In vacancy) have been theoretically studied using the density functional theory. The defect energy states of the O vacancy and In interstitial are close to the bottom of conduction band and act as shallow donors, while the defect energy states of the In vacancy and O interstitial are just above the top of the valence band and act as shallow acceptors. Without addition of any magnetic ions, all the hole states are completely spin polarized, while the electron states display no spin polarization. This implies that semiconducting In2O3 can display magnetic ordering, purely due to the intrinsic defects. However, the formation energies for neutral p-type defects are too high to be thermodynamically stable at reasonable temperatures. Nevertheless, it is shown that negative charging can greatly decrease the formation energies of p-type defects, simultaneously removing the local magnetic moments. We conlcude that V-In''' and O-I '' will be the dominant compensating defects as In2O3 is doped with TM ions, such as Sn, Mo, V and Cr. This result is consistent with the general view that the p-type defect is a key feature to mediate ferromagnetic coupling between transition metal ions of dilute concentration in metal oxides.
On the basis of first-principles calculations we have systematically investigated the energetics of hydrogen desorption from the MgH2 (001) surface. Based on total energy and electronic structure calculations, two modes namely strain and doping of selected dopants (Al, Si, Ti) and the combined effect of both on the dehydrogenation energies (ΔH) of MgH2 (001) systems have been analyzed. The maximum improvement in ΔH has been obtained with the combined effect of doping and strain. Among all the dopants, Al gives the lowest value of ΔH when the system Al-MgH2 is subjected to a 7.5% biaxial symmetric strain whereas the Si-MgH2 systems show the least improvement in ΔH. The doping of Ti on MgH 2 (001) is also very beneficial even without strain. The reduction in ΔH is caused by the charge localization on the metal atoms, destabilization and the weakening of metal-hydrogen bonds.
In view of interest in functionalized carbon nanostructures due to their potential applications in nanotechnology and nanoelectronics, we have performed a systematic and thorough density functional theory (DFT) study on the interaction of the elements in the first two groups of the periodic table with graphane (hydrogenated graphene) sheet. GGA approximation as employed in DFT has been used to study in detail the binding configuration, bond length, charge transfer and band gap of each of these adatoms doped graphane (CH) systems. To have a better understanding of the adatoms-CH interaction, different doping concentrations varying from 3.125% to 50% have been considered. A certain trend in binding strength, bond length and charge transfer has been found in the case of both alkali metal and alkaline-earth metal adatoms. In the case of alkali-metal adatoms at the low doping concentration of 3.125%, semiconductor behavior was found, whereas at doping higher than this the compound showed metallic behavior. In contrast, alkaline-earth metal-doped CH exhibited metallic behavior at all the doping concentrations.
Based on the first-principle density functional calculations we predict that Li-doped graphane (prehydrogenated graphene) can be a potential candidate for hydrogen storage. The calculated Li-binding energy on graphane is significantly higher than the Li bulk's cohesive energy ruling out any possibility of cluster formations in the Li-doped graphane. Our study shows that even with very low concentration (5.56%) of Li doping, the Li-graphane sheet can achieve a reasonable hydrogen storage capacity of 3.23 wt.%. The van der Waals corrected H(2) binding energies fall within the range of 0.12-0.29 eV, suitable for practical H(2) storage applications.
"Quantum conversation" is a way in which two parties can communicate classical information with each other using entanglement as a shared resource. We present this scheme using a multipartite entangled state after describing its generation through appropriate circuit diagrams. We make use of a discrimination scheme which allows one to perform a measurement on the system without destroying its entanglement. We later prove that this scheme is secure in a noiseless and a lossless quantum channel.
Density functional theory (DFT) calculations have been performed to investigate the interaction of water molecules with bare and defective ZnO(10 (1) over bar0) surfaces. We show that at high coverages water molecules avoid adsorption close to defect sites, whereas at low coverages adsorption on defective surfaces show a similar adsorption pattern to those adsorbed on the defect-free surface, adsorbing in a molecular fashion. Finally we show that the electronic structure of the defective non-polar surface is not much affected by the adsorption of water, with exception of the O-defect surfaces.
We investigate the role of the substrate for the strength of the electron-phonon coupling in Li-decorated graphene. We find that the interaction with a h-BN substrate leads to a significant enhancement from lambda(0) = 0.62 to lambda(1) = 0.67, which corresponds to a 25% increase of the transition temperature from T-c0 = 10.33K to T-c1 = 12.98 K. The superconducting gaps amount to 1.56 meV (suspended) and 1.98 meV (supported). These findings open up a new route to enhanced superconducting transition temperatures in graphene-based materials by substrate engineering.
The charges of mu m-size particles in the quasineutral bulk plasma of a dc discharge are determined experimentally in a pressure range between 100 and 500 Pa, spanning the transition between the weakly collisional and highly collisional (hydrodynamic) regimes, where the ion mean free path drops below the plasma screening length. The charge is determined using the force balance condition from the measured particle drift velocities in stable particle flows. A simple interpolation formula for the ion flux to the grain in the transitional regime is shown to fit quite well the experimental results.
Arrays of 10 nm diameter point contacts of exchange-coupled spin-majority/spin-minority ferromagnetic metals, integrated into infrared-terahertz range photon resonators, are fabricated and measured electrically and optically. Giant, threshold-type electronic excitations under high-current pumping of the devices are observed as abrupt but reversible steps in device resistance, in many cases in excess of 100%, which correlate with optical emission from the devices. The results are interpreted as due to stimulated spin-flip electron-photon relaxation in the system.
Based on the first-principles density functional theory, we have studied the stability, electronic structure and ammonia storage capacity of metal-decorated graphene oxide (GO). Metal atoms (Mg and Li) are bonded strongly to the epoxy oxygen atoms on the surface of the GO sheet, which can act as high-surface-area adsorbent for the ammonia uptake and release. Each metal atom can bind several ammonia molecules around itself with a reasonable binding energy. We find metal-decorated GO can store up to tens of moles of ammonia per kilogram, which is far better than the recently reported excellent ammonia adsorption by GO.
We study vortex lines in high-temperature superconductors with columnar defects produced by heavy-ion irradiation. We reconsider scaling theory for the Bose-glass transition with tilted magnetic fields, and propose, e.g. , a new scaling form for the shape of the Bose glass phase boundary, which is relevant for experiments. We also consider Monte Carlo simulations for a vortex model with a screened interaction. Critical exponents are determined from scaling analysis of Monte Carlo data for current-voltage characteristics and other quantities. The dynamic critical exponent is found to be z = 4.6 ± 0.3.
The relationship between orbital and spin degrees of freedom in the single crystals of the hole-doped Pr1-xCa1+xMnO4, 0.3 <= x <= 0.7 has been investigated by means of ac-magnetometry and charge transport. We show that in an intermediate underdoped region, with 0.35 <= x < 0.5, the "orbital-master spin-slave" relationship commonly observed in half-doped manganites does not take place. The long-ranged charge-orbital order is not accompanied by an antiferromagnetic transition at low temperatures, but by a frustrated short-ranged magnetic state bringing forth a spin-glass phase. We discuss in detail the nature and origin of this true spin-glass state, which, as in the half-doped manganites with large quenched disorder, is not related to the macroscopic phase separation observed in crystals with minor defects or impurities.
Large negative magnetoresistance and magnetisation anomalies are found in epitaxial GdH3-delta films. The zero-field semiconductor-like behavior in the resistivity is completely suppressed at a magnetic field of 120 kOe. Temperature and field dependence of the magnetisation supports short-range ordering in the paramagnetic host, mediated by the vacancy state of trihydride.
Periodic pinning effects in indented Nb films and Nb films with rectangular arrays of submicrometric Ni dots were studied. The indented samples consisted of Nb film deposited on top of Si substrates patterned with rectangular arrays of nanoholes. Pinning effects can be observed in the evolution of resistivity and critical current with the applied magnetic field, showing the same qualitative behavior, for both types of samples. The main difference between them is that the matching effects are more pronounced in the samples with magnetic dots. The analysis and comparison of these results allows determining the pinning as due to superconductivity suppression around the nanostructures (indentations or dots) due to a thickness reduction. For the samples with magnetic dots, this suppression of superconductivity is reinforced by the magnetic proximity effect.
By means of first-principles calculations, we have investigated the effects of various Li-doping on the exchange interaction and the formation energy in bulk GaN with Ga vacancies. Although the Ga vacancies can induce ferromagnetism in GaN, their formation energy is rather high. Our calculations show that Li-doping can effectively tune the formation energy of Ga vacancies. It is revealed that the stabilizing effect depends on whether the number of holes is increased or decreased after Li-doping. When Li atoms substitutes for N atoms or occupies the interstitial sites, the holes are reduced and the formation energy of Ga vacancies is lowered. In contrast, Li substituting for Ga generates additional holes in the system, leading to an enhancement of the formation energy of Ga vacancies and making the system less stable. Copyright (c) EPLA, 2011
We have carried out a systematic theoretical investigation of Fe-doped AlH3 to study its magnetic properties and to assess the stability of the ferromagnetic phase in this material. All calculations were performed using the projector augmented-wave method and generalized-gradient approximation (GGA) as well as GGA+U. The magnetic moment is found to be constant at 1.1 mu(B) per Fe-atom in the ferromagnetic configuration for distances between adjacent Fe atoms varying from 3.25 angstrom to 7.41 angstrom. We conclude that the ferromagnetic phase in Fe-doped AlH3 is stable both for near and far configurations of Fe. The stability of the ferromagnetic phase is due to the holes created by Fe-doping and the larger level splitting of the interacting gap states within the ferromagnetic phase.
We introduce and develop a novel approach to extend the ordinary two-flavor neutrino oscillation formalism in matter using a non-Hermitian PT symmetric effective Hamiltonian. The condition of PT symmetry is weaker and less mathematical than that of hermicity, but more physical, and such an extension of the formalism can give rise to sub-leading effects in neutrino flavor transitions similar to the effects by so-called non-standard neutrino interactions. We derive the necessary conditions for the spectrum of the effective Hamiltonian to be real as well as the mappings between the fundamental and effective parameters. We find that the real spectrum of the effective Hamiltonian will depend on all new fundamental parameters introduced in the non-Hermitian PT symmetric extension of the usual neutrino oscillation formalism and that either i) the spectrum is exact and the effective leptonic mixing must always be maximal or ii) the spectrum is approximate and all new fundamental parameters must be small.
In neutrino physics, it is now widely believed that neutrino oscillations are influenced by the presence of matter, modifying the energy spectrum produced by a neutrino beam traversing the Earth. Here, we will discuss the reverse problem, i.e. what could be learned about the Earth's interior from a single neutrino baseline energy spectrum, especially about the Earth's mantle. We will use a statistical analysis with a low-energy neutrino beam under very optimistic assumptions. At the end, we will note that it is hard to find petroleum with such a method, though it is not too far away from technical feasibility.
Conventional definition of the time-normal operator ordering (KELLEY P. L. and KLEINER W. H., Phys. Rev., 136 (1964) A316) is prone to causality violations (de HAAN M., Physica A, 132 (1985) 375; 397). We show that such violations disappear if this definition is amended outside the rotating wave approximation. Nonrelativistic causality of an arbitrary time-normal product turns out to be a property of quantum kinematics, while relativistic causality is demonstrated for a time-normal product of two operators under the most general assumptions about quantum dynamics (commutativity of operators at space-like intervals). This eliminates the key obstacle preventing phase-space techniques of quantum optics from being extended to arbitrary quantum fields including fermions.
We propose a magnetic multilayer layout, in which the indirect exchange coupling (IEC also known as RKKY) can be switched on and off by a slight change in temperature. We demonstrate such on/off IEC switching in a Fe/Cr/FeCr-based system and obtain thermal switching widths as small as 10-20 K, essentially in any desired temperature range, including at or just above room temperature. These results add a new dimension of tunable thermal control to IEC in magnetic nanostructures, highly technological in terms of available materials and operating physical regimes.
We present the ab initio study of the cathode material LiNaFePO4F, which is suitable for rechargeable batteries. Our calculations reveal the ferromagnetic order to be the ground state of this material. We also predict more than 5.0V intercalation voltage of this material for sodium-ion batteries. The low cost of sodium iron. fluorophasphate batteries and more than 5.0V intercalation voltage makes it the more suitable candidate, commercially and scientifically, than any other cathode materials for rechargeable batteries.


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National Heritage Area
The Santa Cruz Valley National Heritage Area is a natural and cultural landscape shaped by generations of people from diverse cultural origins. Tumacácori National Historical Park and other visitor experiences here embody this spirit.
Santa Cruz Valley National Heritage Area
This 3,300-square-mile landscape is nationally recognized for its natural, historical and multicultural heritage
The Santa Cruz Valley National Heritage Area of Southern Arizona encompasses the watershed of the Santa Cruz River – from Nogales and Patagonia, through Tucson, to Marana and Oro Valley – an ancient and still vital trade route, home to Arizona's earliest civilizations and a bounty of natural and historical assets. The boundary marks an area shaped by generations of people from diverse cultures and communities with special stories to tell. The distinctive stories of these communities form the fabric of the experiences available here.
There are 10 heritage experiences, which are unique among existing National Heritage Areas, that highlight this area's varied natural beauty and cultural history:
Distinctive stories of Southern Arizona's Santa Cruz Valley:
- Sky Islands and Desert Seas
- Streams in the Desert
- Bird Habitat and Migration Routes
- Native American Lifeways
- Desert Farming
- Ranching Traditions
- Spanish and Mexican Frontier
- Mining Booms
- U.S. Military Posts on the Mexico Border
- U.S.-Mexico Border Culture
Telling America's story
Visitors to the Santa Cruz Valley National Heritage Area enjoy outdoor recreation, bird-watching, astronomy, heritage site tours, and local wineries and heritage foods. Attractions like the Juan Bautista de Anza National Historic Trail, which parallels the Santa Cruz River, appeal to travelers of all ages seeking a respite from bustling city life. Other attractions include: Catalina State Park, Saguaro National Park, Mission San Xavier del Bac, Tubac artist colony, Tubac Presidio State Historic Park, Tumacacori National Historical Park, Historic Canoa Ranch, Wild Chile Botanical Area, Las Cienegas National Conservation Area, Patagonia Lake State Park, Madera Canyon and the Santa Rita Mountains, and San Rafael State Park and Natural Area
Santa Cruz Valley Heritage Alliance
National Heritage Areas (NHA) are designated by Congress as a place where natural, cultural, historic and recreational resources combine to form nationally distinctive landscapes. There are 55 NHAs in 34 states (as of March 2019). The Santa Cruz Valley Heritage Alliance is the non-profit organization mandated by the enabling legislation to serve as the local coordinating entity for the Santa Cruz Valley Heritage Area. This alliance of local governments, non-profit organizations, and businesses uniquely poised to coordinate and implement heritage-based economic and community development is an advocate for this region's valuable heritage.
Local heritage conservation, promotion, and education projects supported by the National Heritage Area:
- Increase heritage and nature tourism and grow tourism-related economic impact
- Develop heritage education programs
- Promote local foods, crafts, and other traditional products
- Riparian restoration
- Rehabilitation of historic buildings
- Improve the quality of life for residents by instilling a sense of place
- And more!
We invite you to visit and experience this region's heritage lodging, destinations, food traditions, and annual events:
Featured Heritage Events
Birding in the Garden at Mission Garden April 9, 2020 - November 11, 2021
Mission Garden hosts bird-watching on the second Thursday of every... Read More
Living History Day at Presidio Museum - Cancelled Temporarily April 11, 2020
On Living History Days at the Tucson Presidio museum, attendees can... Read More
Agave Heritage Festival - Postponed Until Further Notice April 23, 2020 - May 5, 2020
t is with a heavy heart that we share that we are postponing this... Read More
Benson Pony Express Western Day September 19, 2020
The City of Benson hosts Pony Express Western Day with a car show, DJ... Read More
Tucson Meet Yourself October 9, 2020 - October 11, 2020
Come for the food and stay for the culture! Local residents gather to... Read More
Empire Ranch Cowboy Festival November 7, 2020
It's a Western experience for the whole family! Enjoy music,... Read More
Featured Heritage Lodging
Hotel Congress
Congress St. District
Elkhorn Ranch
White Stallion Ranch
Northside District
Tanque Verde Ranch
Tubac Golf Resort & Spa
Hacienda Del Sol Guest Ranch Resort
Westward Look Wyndham Grand Resort & Spa
Armory Park Inn
Tucson Convention Center District
Amado Territory Inn
El Presidio Bed & Breakfast Inn
Featured Heritage Food
Barrio Bread
Callaghan Vineyards
Cup Café inside Hotel Congress
Congress St. District
Dos Cabezas WineWorks
Hamilton Distillers - Makers of Whiskey Del Bac
Maynards Market & Kitchen
Congress St. District
Sonoita Vineyards
Village of Elgin Winery
Featured Heritage Attractions & Outings
Amerind Museum
Tohono O'odham Nation Cultural Center & Museum
Arizona's West Coast Region
Western National Parks Association
Presidio San Agustín del Tucson Museum and The Turquoise Trail
Arizona-Sonora Desert Museum
Friends of Tucson's Birthplace: Mission Garden
Sentinel Peak District
Tumacacori National Historical Park
St. Augustine Cathedral
Tucson Convention Center District
Tumamoc Hill – Tucson Mountains
Presidio Santa Cruz de Terrenate Historic Site Interpretive Trail
Tubac, AZ
DeGrazia Gallery in the Sun Museum
Historic Hacienda de la Canoa
Pima County
La Posta Quemada Ranch, Colossal Cave Mountain Park
Mt. Lemmon Science Tour App
Northside District
Mountain Empire (Patagonia-Sonoita-Elgin)


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This is a repost from last year. I made these a few times last year, but never got around to actually taking photos of them. These brownies are wonderful.
At the beginning of our primal/paleo journey, this was the first baked good I made after our first 30 days strict. My husband has a huge sweet tooth, and when he proclaimed them better than grain- and refined-sweetener-filled brownies, I knew they were a hit.
I made them again today to photograph them as I hadn't had sweetener or chocolate lying around in a long time and finally got around to purchasing some, and also to celebrate our four year anniversary. Not a bad excuse to make them ;)
primal / paleo / grain-free / gluten-free


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It's designed with a flat handlebar and upright rider position, providing a confident, sporty feel that's suitable for city streets or country roads. The frame features slick internal cable routing for a clean look, and it has rack and fender mounts so you can add accessories to make it fit your needs.
This is also our standard rental bike. They are light, durable and perfect for Irish roads. These bikes are used by our sister company Irish Cycling Safaris for their tours. The bikes have an alloy frame and 24 Shimano gears. They are equipped with chain guards, mudguards and carrier.
Price from
- Size: XS - XL
- Colour: Black (also comes in red)


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MVCS Interviews & Tours
Student Visitors: Prospective students are encouraged to visit for a partial or full day after making arrangements through the office. The Open House scheduled is shown below. It would be a privilege to have you visit for a day or join us on one of our tours.
MVCS Open House Dates 2019 – 2020
Interested in finding out more about Mid Vermont Christian School and what we have to offer? Join us for one of our Open Houses:
Monday, January 20, 2020
Friday, February 7, 2020
Wednesday, February 26, 2020
Friday, March 7, 2020
Monday, March 16, 2020
Wednesday, April 1, 2020
Monday, April 27, 2020
Friday, May 1, 2020
Wednesday, May 20, 2020
Give us a call at (802) 295-6800 to let us know you are coming.
Unable to attend one of the dates above? Please give us a call to schedule a day that will work for you. (802) 295-6800.


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Getting your C.V. in tip top shape (Upcoming event) Dates will be release soon
You must be logged in to post a comment.
Equality Diversity Inclusion Network is proud to bring to you this very special event.
Domestic Abuse and the Problems/ Stigma in reporting for women
How to be a Trans Ally
The impact upon children and the family unit as a result of the breakdown of a relationship
Knife crime,The panel discussion The Bushra Ali Group is absolutely delighted to announce that we have these two powerhouses heading the panel discussion the 'knife crime' debate!
My journey to empowerment by Zinthiya Ganeshpanchan (Founder & CEO of Zinthiya Trust).


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Of course, no one should be judged solely on his or her shoes, but a study published in the Journal of Research in Personality in 2012 showed that 90 percent of your personality may be communicated by your choice of footwear.
Women tend to judge a man by his shoes twice as much as men judge women's shoes. So, guys, it pays to step up your footwear game. Whether you realize it or not, here is what your shoes are saying about you
Here's a fun look at what your shoes might say about you.
– Sneakers
-You might expect people with colorful sneakers to be more extroverted, but that's not necessarily so, the researchers found. Fun-looking shoes do not mean a fun personality.
– Also means if things were to ever go sideways, he is ready to roll
– Sandals
A guy who constantly wears sandals implies he has little or no care about what people think of your appearance. They are usually stubborn and highly opinionated about everything and have a hint of weirdness to them.
– Formal shoes or oxford
– High icome
– Shows a unique level of charisma and coolness, could also be implied as a proud narcissistic person.
This may not be entirely true but for a first time impressions, these thoughts and many more run through people's minds once your footwear is seen
– High tops
-Standoffish, introverted, agreeable, conscientious, according to the study.
-HuffingtonPost.com says they signal "A kid at heart who doesn't take himself too seriously."
-Extroverted, emotionally stable.
-Not new but well-kept can mean the wearer is conscientious.
– Biker-Style Boots
-According to Million Looks fashion website: reserved, egocentric, lack of trust in people and a preference to do things oneself, smart, sensitive.
-Ankle boots tend to be worn by aggressive people, the study found.
-'Fashion-Forward' Wedges
-According to Million Looks: straightforward, confident, yet hesitant to make decisions.
-High heels or Sky-high Pumps
-Painful to look at.
-Million Looks says stilettos show a vivid personality, a desire for attention, high self-confidence in terms of appearance, and capriciousness.
– Desert boots
"These suede ankle boots are trendy yet understated, masculine but not aggressive. This guy is detail-oriented and not at all flashy."


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Scene: Strike Rally at York Region Municipal Headquarters
WHERE: York Region Municipal Headquarters (17250 Yonge Street).
WHEN: 10:30 a.m.
WHAT: York Region Transit workers ramped up what's been a relatively quiet strike with a rally and march on York Region Municipal headquarters today. Several hundred employees gathered to protest a lack of sick days and a $22 hourly wage, which is seven dollars less than their Toronto counterparts receive. Speakers included Sid Ryan from the Ontario Federation of Labour; John Cartwright, president of the York Region Labour Council; Bob Kinnear, president of Amalgamated Transit Union Local 113; and Ray Doyle, president of Amalgamated Transit Union Local 1587. Kinnear and Doyle believe their unions pursuing rallies instead of picket lines will limit commuter confrontation and aggravation, letting them focus on the issues at hand.
CORRECTION: October 27, 2011, 4:57 PM This article originally stated that the rally was taking place at 17250 Yonge Street.
CORRECTION: October 27, 2011, 5:59 PM Due to a misunderstanding, the address was mistakenly corrected. The initial address of 17250 Yonge Street is accurate, but the rally is at York Regional Municipal Headquarters, not York Region Transit.


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Manish Gupta is an Indian politician and the present Minister for Power in the Government of West Bengal. He is also an MLA, elected from the Jadavpur constituency in the West Bengal state assembly election, 2011. In this election he historically defeated 16,684 votes his former boss,[1] the then incumbent Chief Minister of West Bengal, Buddhadeb Bhattacharjee, who remained the MLA of this constituency for twenty-four years.[2] He served under Buddhadeb Bhattacharjee as the Chief Secretary of West Bengal before he retired as an IAS officer. He also worked as the Chief Secretary of West Bengal under Chief Minister Jyoti Basu[3] - a time when Buddhadeb Bhattacharjee was the Deputy Chief Minister.
Kolkata, Bengal, Bangladesh, Bihar, Rabindranath Tagore
Vietnam, Communist Party of India (Marxist), All India Trinamool Congress, Jyoti Basu, Information technology
Barack Obama, Election, Texas, Liberalism, United States
Delhi, India, Rajasthan, Pakistan, Maharashtra
Communist Party of India (Marxist), West Bengal, India, All India Trinamool Congress, South 24 Parganas district
Bharatiya Janata Party, Communist Party of India (Marxist), India, All India Trinamool Congress, Indian National Congress
Government of West Bengal, Communist Party of India (Marxist), Orissa High Court, Elections in West Bengal, Electoral fraud
India, West Bengal, States and territories of India, All India Forward Bloc, West Bengal Legislative Assembly
Kolkata, India, Calcutta High Court, Government of India, West Bengal


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Jubilee Kids DC 719
Type of event: Training
Sponsor: Central East Region of the UUA, All Souls Church Unitarian, Washington, DC
YOUR CHILD IS INVITED to Jubilee Kids!
Learning Together About Race, Racism, and Racial Identity
Do you wish to nurture your child(ren)'s understanding of race, ethnicity, and identity?
Do you wish to deepen their understanding of how our Unitarian Universalist values call us to practice inclusion and act against racism?
Jubilee Kids! supports nurturing a multicultural community, valuing every child and family.
This 2 day program is open to children in grades 2-6 who are RE participants or relatives of All Souls members.
Register Now.
- Provide an age-appropriate exploration of race, racism and racial identity in light of our UU values
- Provide basic information and experiences that open conversations in UU families about responsibility and respect as it relates to racial justice and inclusion
Program Includes:
- 6 learning modules on UU values, differences, family, history, and inclusion please see link for full schedule and outline
- Parent/ Child introduction and suggestions for further dialogue
- Local historical field trip in the community surrounding All Souls
- Discussions, games, exercises, worship services, and shared meals.
WHEN: Saturday, July 20th (8:30am to 5:30pm), Sunday, July 21st (11:30am to 4:30pm)
FEE: $35 per participant (includes cost for leaders, meals and materials), waiver available upon request.
Registration Deadline is July 15, 2019.


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What to Expect From a Cheap New York Hotel
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If you are planning a trip to New York city and you are heavily limited on your budget, rest assured that you can still have a meaningful trip. The only thing is you will need to sacrifice on some of the luxuries and save on other expenses such as food and souvenirs. One thing you can do to minimize expenses is to stay in a cheap New York hotel.
Cheap does not necessarily mean a bad thing especially when we are talking about a New York hotel. You will just have to be extra careful because some establishments abuse the word cheap and they would offer horrendous services. A stay in a New York hotel need not be expensive and while you may want to spend a little on it, you can still get at least the basic accommodations and necessities anybody would expect.
Here are a few things that you should expect should you decide to stay in a cheap New York hotel room.
1. No Internet access.
This may not be very important especially if you are not on a business trip. After all, you are there to see the city and not to surf the Internet in your New York hotel room. And if there is no Internet connection, you may also not expect a computer. You can just bring your laptop with you and surf the net in a coffee shop. There are plenty of coffee shops and other establishments that offer free Internet connection.
2. No cable TV.
You have plenty of time to watch your favorite shows on cable television back at home. This is also a good thing because there will be less distractions and your attention will be focused more on planning your itinerary for the rest of your stay.
3. There is only one complimentary meal.
An inexpensive New York hotel will offer just one complimentary meal or none at all and it is usually breakfast. Go try it during your first day at the hotel but if you find that the food is of such low quality, then you can just go out and eat. New York City has so many restaurants and offer the best in every form of dining.
4. No telephone
Although this may come as a standard equipment in a hotel room, some hotels will not include a phone to help cut off the expenses. No worries there. You can just bring your cellphone with you or you can always call at the reception.
5. Size does matter
If you are paying less, then you should not expect to get a suite. A standard room may just be the right size for two people or even just one. Don't expect to find a king size bed, a walk in closet or even a full size bath tub.
These are just some of the things that you should be aware of if you are staying in a cheap New York hotel. Another thing worth mentioning is that the farther away from the center of the city the hotel is, the cheaper the price of the room goes down. Keep these things in mind and may you have a pleasant trip.
The secrets of New York Hotel Rooms: All the information you need about New York Hotel Rooms. Now you can have New York Hotel Rooms with no problem, discover the benefits, how to do it and the great tips that only this site has.
Article Source: What to Expect From a Cheap New York Hotel
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