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Sample records for model jongwoo lee

  1. Leptogenesis in a model with Friedberg-Lee symmetry

    Science.gov (United States)

    Araki, Takeshi; Geng, C. Q.

    2009-10-01

    We study the matter-antimatter asymmetry through the leptogenesis mechanism in a specific model with the Friedberg-Lee (FL) symmetry. We relate the leptogenesis with the CP violating Dirac and Majorana phases in the Maki-Nakagawa-Sakata leptonic mixing matrix and illustrate the net baryon asymmetry of the universe in terms of these phases.

  2. Leptogenesis in a model with Friedberg-Lee symmetry

    Energy Technology Data Exchange (ETDEWEB)

    Araki, Takeshi [Department of Physics, National Tsing Hua University, Hsinchu, 300, Taiwan (China)], E-mail: araki@phys.nthu.edu.tw; Geng, C.Q. [Department of Physics, National Tsing Hua University, Hsinchu, 300, Taiwan (China)], E-mail: geng@phys.nthu.edu.tw

    2009-10-05

    We study the matter-antimatter asymmetry through the leptogenesis mechanism in a specific model with the Friedberg-Lee (FL) symmetry. We relate the leptogenesis with the CP violating Dirac and Majorana phases in the Maki-Nakagawa-Sakata leptonic mixing matrix and illustrate the net baryon asymmetry of the universe in terms of these phases.

  3. Leptogenesis in model with Friedberg-Lee symmetry

    CERN Document Server

    Araki, Takeshi

    2009-01-01

    We study the matter-antimatter asymmetry through the leptogenesis mechanism in the model with the Friedberg-Lee (FL) symmetry. We relate the leptogenesis with the CP violating Dirac and Majorana phases in the Maki-Nakagawa-Sakata leptonic mixing matrix and illustrate the net baryon asymmetry of the universe in terms of these phases.

  4. A Higher-Derivative Lee-Wick Standard Model

    CERN Document Server

    Carone, Christopher D

    2009-01-01

    The Lee-Wick Standard Model assumes a minimal set of higher-derivative quadratic terms that produce a negative-norm partner for each Standard Model particle. Here we introduce additional terms of one higher order in the derivative expansion that give each Standard Model particle two Lee-Wick partners: one with negative and one with positive norm. These states collectively cancel unwanted quadratic divergences and resolve the hierarchy problem as in the minimal theory. We show how this next-to-minimal higher-derivative theory may be reformulated via an auxiliary field approach and written as a Lagrangian with interactions of dimension four or less. This mapping provides a convenient framework for studies of the formal and phenomenological properties of the theory.

  5. Friedberg-Lee model at finite temperature and density

    Science.gov (United States)

    Mao, Hong; Yao, Minjie; Zhao, Wei-Qin

    2008-06-01

    The Friedberg-Lee model is studied at finite temperature and density. By using the finite temperature field theory, the effective potential of the Friedberg-Lee model and the bag constant B(T) and B(T,μ) have been calculated at different temperatures and densities. It is shown that there is a critical temperature TC≃106.6 MeV when μ=0 MeV and a critical chemical potential μ≃223.1 MeV for fixing the temperature at T=50 MeV. We also calculate the soliton solutions of the Friedberg-Lee model at finite temperature and density. It turns out that when T⩽TC (or μ⩽μC), there is a bag constant B(T) [or B(T,μ)] and the soliton solutions are stable. However, when T>TC (or μ>μC) the bag constant B(T)=0 MeV [or B(T,μ)=0 MeV] and there is no soliton solution anymore, therefore, the confinement of quarks disappears quickly.

  6. The Friedberg-Lee model at finite temperature and density

    CERN Document Server

    Mao, Hong; Zhao, Wei-Qin

    2007-01-01

    The Friedberg-Lee model is studied at finite temperature and density. By using the finite temperature field theory, the effective potential of the Friedberg-Lee model and the bag constant $B(T)$ and $B(T,\\mu)$ have been calculated at different temperatures and densities. It is shown that there is a critical temperature $T_{C}\\simeq 106.6 \\mathrm{MeV}$ when $\\mu=0 \\mathrm{MeV}$ and a critical chemical potential $\\mu \\simeq 223.1 \\mathrm{MeV}$ for fixing the temperature at $T=50 \\mathrm{MeV}$. We also calculate the soliton solutions of the Friedberg-Lee model at finite temperature and density. It turns out that when $T\\leq T_{C}$ (or $\\mu \\leq \\mu_C$), there is a bag constant $B(T)$ (or $B(T,\\mu)$) and the soliton solutions are stable. However, when $T>T_{C}$ (or $\\mu>\\mu_C$) the bag constant $B(T)=0 \\mathrm{MeV}$ (or $B(T,\\mu)=0 \\mathrm{MeV}$) and there is no soliton solution anymore, therefore, the confinement of quarks disappears quickly.

  7. Excitation Spectrum in the Friedberg-Lee Model

    Science.gov (United States)

    Kowata, H.; Arima, M.

    2001-03-01

    The excitation spectrum of a nucleon with spin 1/2 is examined using the Friedberg-Lee model containing constituent quarks and a scalar meson. An appropriate method of quantization for the non-linear meson field is employed by taking account of the non-topological soliton existing at the classical level. Our model space for the nucleon resonances includes the three quark plus one meson state, in addition to the pure three quark state. The excitation spectrum in this model space reveals that the positive parity state appears as the first excited state associated with the 0s-excitation of the scalar meson. The meson excitation also generates an additional negative parity state apart from the well-known 0p-excitation of the quark.

  8. Excitation Spectrum in the Friedberg-Lee Model

    CERN Document Server

    Kowata, H

    2001-01-01

    The excitation spectrum of the nucleon with the spin 1/2 is examined by using the Friedberg-Lee model containing the constituent quark and the scalar meson. An appropriate way of quantization for the non-linear meson field is employed by taking account of the non-topological soliton existed in the classical level. Our model space for the nucleon resonances includes the three-quark plus one-meson state in addition to the pure three-quark state. The excitation spectrum in this model space shows that the positive parity state appears as the first excited state associated with the 0s-excitation of the scalar meson. The meson excitation also generates the additional negative parity state apart from the well-known 0p-excitation of the quark.

  9. Excitation spectrum in the Friedberg-Lee model

    Energy Technology Data Exchange (ETDEWEB)

    Kowata, Hiroto; Arima, Masaki [Department of Physics, Osaka City University, Osaka (Japan)

    2001-03-01

    The excitation spectrum of a nucleon with spin 1/2 is examined using the Friedberg-Lee model containing constituent quarks and a scalar meson. An appropriate method of quantization for the non-linear meson field is employed by taking account of the non-topological soliton existing at the classical level. Our model space for the nucleon resonances includes the three quark plus one meson state, in addition to the pure three quark state. The excitation spectrum in this model space reveals that the positive parity state appears as the first excited state associated with the 0s-excitation of the scalar meson. The meson excitation also generates an additional negative parity state apart from the well-known 0p-excitation of the quark. (author)

  10. The Friedberg-Lee symmetry and minimal seesaw model

    Energy Technology Data Exchange (ETDEWEB)

    He Xiaogang [Center for High Energy Physics, Peking University, Beijing (China); Department of Physics and Center for Theoretical Sciences, National Taiwan University, Taipei, Taiwan (China); Liao Wei, E-mail: liaow@ecust.edu.c [Center for High Energy Physics, Peking University, Beijing (China); Institute of Modern Physics, East China University of Science and Technology, Shanghai (China)

    2009-11-02

    The Friedberg-Lee (FL) symmetry is generated by a transformation of a fermionic field q to q+xiz. This symmetry puts very restrictive constraints on allowed terms in a Lagrangian. Applying this symmetry to N fermionic fields, we find that the number of independent fields is reduced to N-1 if the fields have gauge interaction or the transformation is a local one. Using this property, we find that a seesaw model originally with three generations of left- and right-handed neutrinos, with the left-handed neutrinos unaffected but the right-handed neutrinos transformed under the local FL translation, is reduced to an effective theory of minimal seesaw which has only two right-handed neutrinos. The symmetry predicts that one of the light neutrino masses must be zero.

  11. The Friedberg-Lee symmetry and minimal seesaw model

    Science.gov (United States)

    He, Xiao-Gang; Liao, Wei

    2009-11-01

    The Friedberg-Lee (FL) symmetry is generated by a transformation of a fermionic field q to q + ξz. This symmetry puts very restrictive constraints on allowed terms in a Lagrangian. Applying this symmetry to N fermionic fields, we find that the number of independent fields is reduced to N - 1 if the fields have gauge interaction or the transformation is a local one. Using this property, we find that a seesaw model originally with three generations of left- and right-handed neutrinos, with the left-handed neutrinos unaffected but the right-handed neutrinos transformed under the local FL translation, is reduced to an effective theory of minimal seesaw which has only two right-handed neutrinos. The symmetry predicts that one of the light neutrino masses must be zero.

  12. The Friedberg-Lee Symmetry and Minimal Seesaw Model

    CERN Document Server

    He, Xiao-Gang

    2009-01-01

    The Friedberg-Lee (FL) symmetry is generated by a transformation of a fermionic field $q$ to $q + \\xi z$. This symmetry puts very restrictive constraints on allowed terms in a Lagrangian. Applying this symmetry to $N$ fermionic fields, we find that the number of independent fields is reduced to $N-1$ if the fields have gauge interaction or the transformation is a local one. Using this property, we find that a seesaw model originally with three generations of left- and right-handed neutrinos, with the left-handed neutrinos unaffected but the right-handed neutrinos transformed under the local FL translation, is reduced to an effective theory of minimal seesaw which has only two right-handed neutrinos. The symmetry predicts that one of the light neutrino mass must be zero.

  13. Lee-Yang Model in Presence of Defects

    CERN Document Server

    Deeb, Omar El

    2015-01-01

    I choose the Lee-Yang model and go through different approaches to analyze it using the form factor approach and the bootstrap program, the lattice description and the lattice TBA equations for a full understanding of the model. The bootstrap program aims to explicitly solve 1+1 dimensional integrable quantum field theories. In the first step, called the S-matrix bootstrap, the scattering matrix, is determined from its properties. In developing a defect form factor program the first step is the T-matrix bootstrap. Interacting integrable defect theories are purely transmitting and topological. We analyze both operators localized in the bulk and also on the defect. By finding their solutions, the spectral representation of any correlator can be determined. Next we consider the model on the lattice. The lattice approach allows to obtain both massive and massless excited TBA equations by studying the continuum scaling limit of the associated integrable lattice models. The most important input from the lattice app...

  14. Template-free modeling by LEE and LEER in CASP11.

    Science.gov (United States)

    Joung, InSuk; Lee, Sun Young; Cheng, Qianyi; Kim, Jong Yun; Joo, Keehyoung; Lee, Sung Jong; Lee, Jooyoung

    2016-09-01

    For the template-free modeling of human targets of CASP11, we utilized two of our modeling protocols, LEE and LEER. The LEE protocol took CASP11-released server models as the input and used some of them as templates for 3D (three-dimensional) modeling. The template selection procedure was based on the clustering of the server models aided by a community detection method of a server-model network. Restraining energy terms generated from the selected templates together with physical and statistical energy terms were used to build 3D models. Side-chains of the 3D models were rebuilt using target-specific consensus side-chain library along with the SCWRL4 rotamer library, which completed the LEE protocol. The first success factor of the LEE protocol was due to efficient server model screening. The average backbone accuracy of selected server models was similar to that of top 30% server models. The second factor was that a proper energy function along with our optimization method guided us, so that we successfully generated better quality models than the input template models. In 10 out of 24 cases, better backbone structures than the best of input template structures were generated. LEE models were further refined by performing restrained molecular dynamics simulations to generate LEER models. CASP11 results indicate that LEE models were better than the average template models in terms of both backbone structures and side-chain orientations. LEER models were of improved physical realism and stereo-chemistry compared to LEE models, and they were comparable to LEE models in the backbone accuracy. Proteins 2016; 84(Suppl 1):118-130. © 2015 Wiley Periodicals, Inc.

  15. An analytical model for the amplitude of lee waves forming on the boundary layer inversion

    Science.gov (United States)

    Sachsperger, Johannes; Serafin, Stefano; Stiperski, Ivana; Grubišić, Vanda

    2016-04-01

    Lee waves are horizontally propagating gravity waves with a typical wavelength of 5-15 km that may be generated when stratified flow is lifted over a mountain. A frequently observed type of such waves is that of interfacial lee waves. Those develop, similar to surface waves on a free water surface, when the upstream flow features a density discontinuity. Such conditions are often present for example at the capping inversion in boundary layer flow. The dynamics of interfacial lee waves can be described concisely with linear interfacial gravity wave theory. However, while this theoretical framework accurately describes the wavelength, it fails to properly predict the amplitude of lee waves. It is well known that large amplitude lee waves may lead to low-level turbulence, which poses a potential hazard for aviation. Therefore, this property of interfacial lee waves deserves further attention. In this study, we develop a simple analytical model for the amplitude of lee waves forming on the boundary layer inversion. This model is based on the energetics of two-layer flow. We obtain an expression for the wave amplitude by equating the energy loss across an internal jump with the energy radiation through lee waves. The verification of the result with water tank experiments of density-stratified two-layer flow over two-dimensional topography from the HYDRALAB campaign shows good agreement between theory and observations. This new analytical model may be useful in determining potential hazards of interfacial lee waves with negligible computational cost as compared to numerical weather prediction models.

  16. About the triviality of the higher derivative sector in the abelian Lee-Wick model

    CERN Document Server

    Fiorentini, D

    2016-01-01

    Canonical quantization is reviewed here for the Abelian Lee-Wick model by using the Dirac constraints method. New degrees of freedom associated to the (higher derivatives) Lee-Wick ghost are excluded from the (physical) space of observables by a new prescription, based on the Nielsen-type BRST-extended symmetry for the Lee-Wick mass term. We prove that this prescription is nothing but an effective form of implementing the cohomological triviality of the higher-derivative pure sector associated to the existence of a new exclusive higher-derivative BRST symmetry.

  17. Forecasting the mortality rates using Lee-Carter model and Heligman-Pollard model

    Science.gov (United States)

    Ibrahim, R. I.; Ngataman, N.; Abrisam, W. N. A. Wan Mohd

    2017-09-01

    Improvement in life expectancies has driven further declines in mortality. The sustained reduction in mortality rates and its systematic underestimation has been attracting the significant interest of researchers in recent years because of its potential impact on population size and structure, social security systems, and (from an actuarial perspective) the life insurance and pensions industry worldwide. Among all forecasting methods, the Lee-Carter model has been widely accepted by the actuarial community and Heligman-Pollard model has been widely used by researchers in modelling and forecasting future mortality. Therefore, this paper only focuses on Lee-Carter model and Heligman-Pollard model. The main objective of this paper is to investigate how accurately these two models will perform using Malaysian data. Since these models involves nonlinear equations that are explicitly difficult to solve, the Matrix Laboratory Version 8.0 (MATLAB 8.0) software will be used to estimate the parameters of the models. Autoregressive Integrated Moving Average (ARIMA) procedure is applied to acquire the forecasted parameters for both models as the forecasted mortality rates are obtained by using all the values of forecasted parameters. To investigate the accuracy of the estimation, the forecasted results will be compared against actual data of mortality rates. The results indicate that both models provide better results for male population. However, for the elderly female population, Heligman-Pollard model seems to underestimate to the mortality rates while Lee-Carter model seems to overestimate to the mortality rates.

  18. A modified Lee-Carter model for analysing short-base-period data.

    Science.gov (United States)

    Zhao, Bojuan Barbara

    2012-03-01

    This paper introduces a new modified Lee-Carter model for analysing short-base-period mortality data, for which the original Lee-Carter model produces severely fluctuating predicted age-specific mortality. Approximating the unknown parameters in the modified model by linearized cubic splines and other additive functions, the model can be simplified into a logistic regression when fitted to binomial data. The expected death rate estimated from the modified model is smooth, not only over ages but also over years. The analysis of mortality data in China (2000-08) demonstrates the advantages of the new model over existing models.

  19. The Lee-Wick Extension of the Two-Higgs Doublet Model

    CERN Document Server

    Johansen, Aria R; Thrasher, Keith

    2015-01-01

    The Lee-Wick Standard Model is a highly constrained model which solves the gauge hierarchy problem at the expense of including fields with negative norm. It appears to be macroscopically causal and consistent. This model is extended by considering the two-Higgs doublet extension of the Lee-Wick model. Rewriting the Lagrangian using auxiliary fields introduces two additional doublets of Lee-Wick partners. The model is highly constrained, with only one or two additional parameters beyond that of the usual two-Higgs doublet model, and yet there are four doublets. Mass relations are established by diagonalizing the mass matrices and further constraints are established by studying results from B --> tau nu, neutral B-meson mixing, and B --> X_s gamma. The prospects of detecting evidence for this model at the LHC are discussed.

  20. Deterministic and stochastic trends in the Lee-Carter mortality model

    DEFF Research Database (Denmark)

    Callot, Laurent; Haldrup, Niels; Kallestrup-Lamb, Malene

    that characterizes mortality data. We find empirical evidence that this feature of the Lee-Carter model overly restricts the system dynamics and we suggest to separate the deterministic and stochastic time series components at the benefit of improved fit and forecasting performance. In fact, we find...... as a two (or several)-factor model where one factor is deterministic and the other factors are stochastic. This feature generalizes to the range of models that extend the Lee-Carter model in various directions.......The Lee and Carter (1992) model assumes that the deterministic and stochastic time series dynamics loads with identical weights when describing the development of age specific mortality rates. Effectively this means that the main characteristics of the model simplifies to a random walk model...

  1. Modeling of Atmospheric Flow Around a Coastal Cape: Lee Side Story

    CERN Document Server

    Perlin, Natalie

    2013-01-01

    The current research focuses on mesoscale dynamics of the atmospheric circulation around an idealized coastal cape representing typical summertime circulation along the northwest coast of the U.S., studied using a mesoscale coupled ocean-atmosphere modeling system. The orographic wind maximum features a strong NW flow extending a few hundred kilometers downstream and seaward of the cape, which closely follows mesoscale orographic low pressure developed in the lee of the cape. Both wind maximum and the lee trough experience a pronounced diurnal cycle, marked by maximum northwest flow and minimum pressure in the local evening hours (its opposite phase during morning hours), and confirmed by observations from limited buoy and coastal stations. Vertical structure of the atmospheric boundary layer over the coastal ocean on the lee side of the cape indicated the downward propagation of potential temperature and wind features during the course of the day, as opposed to the traditional surface-driven development of t...

  2. Electron and Ion Conductivity Calculations using the Model of Lee and More

    Energy Technology Data Exchange (ETDEWEB)

    Hayes, John C. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-09-30

    The following notes describe the ARES implementation of the inverse of the electron conduction coefficient, using the model of Lee and More, Physics of Fluids 27, page 1273, 1984. An addendum describing the modifications for analogous ion conduction coeffiecient appears at the bottom.

  3. Deterministic and stochastic trends in the Lee-Carter mortality model

    DEFF Research Database (Denmark)

    Callot, Laurent; Haldrup, Niels; Kallestrup-Lamb, Malene

    2015-01-01

    mortality data. We find empirical evidence that this feature of the Lee–Carter model overly restricts the system dynamics and we suggest to separate the deterministic and stochastic time series components at the benefit of improved fit and forecasting performance. In fact, we find that the classical Lee......) factor model where one factor is deterministic and the other factors are stochastic. This feature generalizes to the range of models that extend the Lee–Carter model in various directions.......The Lee and Carter (1992) model assumes that the deterministic and stochastic time series dynamics load with identical weights when describing the development of age-specific mortality rates. Effectively this means that the main characteristics of the model simplify to a random walk model with age...

  4. Describing the strongly interacting quark-gluon plasma through the Friedberg-Lee model

    Science.gov (United States)

    Shu, Song; Li, Jia-Rong

    2010-10-01

    The Friedberg-Lee (FL) model is studied at finite temperature and density. The soliton solutions of the FL model in the deconfinement phase transition are solved and thoroughly discussed for certain boundary conditions. We indicate that the solitons before and after the deconfinement have different physical meanings: the soliton before deconfinement represents hadrons, while the soliton after the deconfinement represents the bound state of quarks which leads to a strongly interacting quark-gluon plasma phase. The corresponding phase diagram is given.

  5. Deconfinement Phase Transition with External Magnetic Field in the Friedberg—Lee Model

    Science.gov (United States)

    Mao, Shi-Jun

    2016-11-01

    The deconfinement phase transition with external magnetic field is investigated in the Friedberg-Lee model. In the frame of functional renormalization group, we extend the often used potential expansion method for continuous phase transitions to the first-order phase transition in the model. By solving the flow equations we find that, the magnetic field displays a catalysis effect and it becomes more difficult to break through the confinement in hot and dense medium.

  6. Deconfinement Phase Transition with External Magnetic Field in Friedberg-Lee Model

    CERN Document Server

    Mao, Shijun

    2015-01-01

    The deconfinement phase transition with external magnetic field is investigated in the Friedberg-Lee model. In the frame of functional renormalization group, we extend the often used potential expansion method for continuous phase transitions to the first-order phase transition in the model. By solving the flow equations we find that, the magnetic field displays a catalysis effect and it becomes more difficult to break through the confinement in hot and dense medium.

  7. Dynamical fragmentation of flux tubes in the Friedberg-Lee model

    Science.gov (United States)

    Loh, S.; Greiner, C.; Mosel, U.; Thoma, M. H.

    1997-02-01

    We present two novel dynamical features of flux tubes in the Friedberg-Lee model. First the fusion of two (anti-)parallel flux tubes, where we extract a string-string interaction potential which has a qualitative similarity to the nucleon-nucleon potential in the Friedberg-Lee model obtained by Koepf et al. Furthermore we show the dynamical breakup of flux tubes via q overlineq- particle production and the disintegration into mesons. We find, as a shortcoming of the present realization of the model, that the full dynamical transport approach presented in a previous publication fails to provide the disintegration mechanism in the semiclassical limit. Therefore, in addition, we present here a molecular dynamical approach for the motion of the quarks and show, as a first application, the space-time development of the wuarks and their mean-fields for Lund-type string fragmentation processes.

  8. Possible treatment of the Ghost states in the Lee-Wick Standard Model

    CERN Document Server

    Shalaby, Abouzeid M

    2008-01-01

    Very recently, the Lee-Wick standard model has been introduced as a non-SUSY extension of the Standard model which solves the Hierarchy problem. In this model, each field kinetic term attains a higher derivative term. Like any Lee-Wick theory, this model suffers from existence of Ghost states. In this work, we consider a prototype scalar field theory with its kinetic term has a higher derivative term, which mimics the scalar sector in the Lee-Wick Standard model. We introduced an imaginary auxiliary field to have an equivalent non-Hermitian two-field scalar field theory. We were able to calculate the positive definite metric operator in quantum mechanical and quantum field versions of the theory in a closed form. The obtained metric operator also diagonalize the Hamiltonian in the two fields (no mixing). Moreover, its Hermiticity constrained the two Higgs masses to be related as $M>2m$, which has been obtained in another work using a very different regime and thus supports our calculation. Besides, the equiva...

  9. The vacuum tunnelling and the crossover of deconfinement in Friedberg-Lee model

    Science.gov (United States)

    Shu, Song; Li, Jia-Rong

    2013-03-01

    We have discussed the vacuum tunnelling in Friedberg-Lee model. The tunnelling coefficient is derived in the field configuration space by calculating the transition amplitude using the path integral under the stationary phase approximation and the dilute instanton gas approximation. By studying the tunnelling effect between the two degenerating vacuums at the critical temperature and chemical potential, we find that the system could be deconfined by tunnelling, which could possibly change the first order deconfinement phase transition to crossover.

  10. The vacuum tunnelling and the crossover of deconfinement in Friedberg–Lee model

    Energy Technology Data Exchange (ETDEWEB)

    Shu, Song, E-mail: shus@hubu.edu.cn [Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062 (China); Li, Jia-Rong [Institute of Particle Physics, Hua-Zhong Normal University, Wuhan 430079 (China); Key Laboratory of Quark and Lepton Physics, Hua-Zhong Normal University, Ministry of Education (China)

    2013-03-01

    We have discussed the vacuum tunnelling in Friedberg–Lee model. The tunnelling coefficient is derived in the field configuration space by calculating the transition amplitude using the path integral under the stationary phase approximation and the dilute instanton gas approximation. By studying the tunnelling effect between the two degenerating vacuums at the critical temperature and chemical potential, we find that the system could be deconfined by tunnelling, which could possibly change the first order deconfinement phase transition to crossover.

  11. Phenomenology of Friedberg-Lee Texture in Left-Right Symmetric Model

    Science.gov (United States)

    Luo, Min-Jie; Liu, Qiu-Yu

    2008-08-01

    We consider that the Higgs triplet Yukawa coupling takes the Friedberg Lee texture, and the Higgs doublet Yukawa coupling simply identifies with the diagonal Yukawa coupling of charged lepton in the context of left-right symmetric model. In this scenario, the phenomenology, including effective neutrino masses, mixings, and thermal flavor-dependent leptogenesis and lepton flavor violation decays are studied. We investigate the combined constrain of the parameters in this scenario and test its consistency with present data.

  12. Phenomenology of Friedberg-Lee Texture in Left-Right Symmetric Model

    Institute of Scientific and Technical Information of China (English)

    LUO Min-Jie; LIU Qiu-Yu

    2008-01-01

    We consider that the Higgs triplet Yukawa coupling takes the Friedberg-Lee texture, and the Higgs doublet Yukawa coupling simply identifies with the diagonal Yukawa coupling of charged lepton in the context of left-right symmetric model. In this scenario, the phenomenology, including effective neutrino masses, mixings, and thermal flavor-dependent leptogenesis and lepton flavor violation decays are studied. We investigate the combined constrain of the parameters in this scenario and test its consistency with present data.

  13. A critique of the Lees-Marshment market-oriented party model

    DEFF Research Database (Denmark)

    Ormrod, Robert P.

    2006-01-01

    between the related concepts of 'market orientation' and 'marketing orientation'. Empirical studies demonstrate problems with the model when applied to certain party types and electoral systems, the limitations on implementation of the model due to ideology and scarce resources, the partial application......This article presents conceptual and empirical criticisms of the Lees-Marshment market-oriented party model. Conceptual criticisms are the short-term approach, the narrow focus on voters, the nature of the relationship to competitors, a tendency towards centralisation and the lack of a distinction...... of the model in practice, and the constraints on the market-oriented party when in government....

  14. Modified Lee-Friedberg soliton-bag model with absolute confinement

    Science.gov (United States)

    Bayer, L.; Forkel, H.; Weise, W.

    1986-12-01

    We systematically investigate solutions of a modified Lee-Friedberg model for fermions bound in a non-linearly self-interacting scalar field σ. In this model a running σ-fermion coupling strength g(σ) is introduced such as to interpolate between a perturbative vacuum with σ=0 and a non-trivial vacuum ( σ=σ v ) with strong coupling. We find soliton-bag-like solutions in which the fermions experience absolute confinement. These solutions are almost independent of the detailed form of g(σ).

  15. Diagnosing Lee Wave Rotor Onset Using a Linear Model Including a Boundary Layer

    Directory of Open Access Journals (Sweden)

    Miguel A. C. Teixeira

    2017-01-01

    Full Text Available A linear model is used to diagnose the onset of rotors in flow over 2D hills, for atmospheres that are neutrally stratified near the surface and stably stratified aloft, with a sharp temperature inversion in between, where trapped lee waves may propagate. This is achieved by coupling an inviscid two-layer mountain-wave model and a bulk boundary-layer model. The full model shows some ability to diagnose flow stagnation associated with rotors as a function of key input parameters, such as the Froude number and the height of the inversion, in numerical simulations and laboratory experiments carried out by previous authors. While calculations including only the effects of mean flow attenuation and velocity perturbation amplification within the surface layer represent flow stagnation fairly well in the more non-hydrostatic cases, only the full model, taking into account the feedback of the surface layer on the inviscid flow, satisfactorily predicts flow stagnation in the most hydrostatic case, although the corresponding condition is unable to discriminate between rotors and hydraulic jumps. Versions of the model not including this feedback severely underestimate the amplitude of trapped lee waves in that case, where the Fourier transform of the hill has zeros, showing that those waves are not forced directly by the orography.

  16. Generalized Friedberg-Lee model for CP violation in neutrino physics

    Science.gov (United States)

    Razzaghi, N.; Gousheh, S. S.

    2012-09-01

    We propose a phenomenological model of Dirac neutrino mass operator based on the Friedberg-Lee neutrino mass model to include CP violation. By considering the most general set of complex coefficients, and imposing the condition that the mass eigenvalues are real, we find a neutrino mass matrix which is non-Hermitian, symmetric, and magic. In particular, we find that the requirement of obtaining real mass eigenvalues by transferring the residual phases to the mass eigenstates self-consistently dictates the following relationship between the imaginary part of the mass matrix elements B and the parameters of the Friedberg-Lee model: B=±(3)/(4)(a-br)2sin⁡22θ13cos⁡2θ12. We obtain inverted neutrino mass hierarchy m3=0. Making a correspondence between our model and the experimental data produces stringent conditions on the parameters as follows: 35.06°≲θ12≲36.27°, θ23=45°, 7.27°≲θ13≲11.09°, and 82.03°≲δ≲85.37°. We get mildly broken μ-τ symmetry, which reduces the resultant neutrino mixing pattern from tri-bimaximal to trimaximal. The CP violation as measured by the Jarlskog parameter is restricted by 0.027≲J≲0.044.

  17. Collider Signatures of the N=3 Lee-Wick Standard Model

    CERN Document Server

    Lebed, Richard F

    2012-01-01

    Inspired by the Lee-Wick higher-derivative approach to quantum field theory, Grinstein, O'Connell, and Wise have illustrated the utility of introducing into the Standard Model negative-norm states that cancel quadratic divergences in loop diagrams, thus posing a potential resolution of the hierarchy problem. Subsequent work has shown that consistency with electroweak precision parameters requires many of the partner states to be too massive to be detected at the LHC. We consider the phenomenology of a yet-higher derivative theory that exhibits three poles in its bare propagators (hence N=3), whose states alternate in norm. We examine the interference effects of W boson partners on LHC scattering cross sections, and find that the N=3 LWSM already makes verifiable predictions at 10 fb^(-1) of integrated luminosity.

  18. Lee-Carter state space modeling: Application to the Malaysia mortality data

    Science.gov (United States)

    Zakiyatussariroh, W. H. Wan; Said, Z. Mohammad; Norazan, M. R.

    2014-06-01

    This article presents an approach that formalizes the Lee-Carter (LC) model as a state space model. Maximum likelihood through Expectation-Maximum (EM) algorithm was used to estimate the model. The methodology is applied to Malaysia's total population mortality data. Malaysia's mortality data was modeled based on age specific death rates (ASDR) data from 1971-2009. The fitted ASDR are compared to the actual observed values. However, results from the comparison of the fitted and actual values between LC-SS model and the original LC model shows that the fitted values from the LC-SS model and original LC model are quite close. In addition, there is not much difference between the value of root mean squared error (RMSE) and Akaike information criteria (AIC) from both models. The LC-SS model estimated for this study can be extended for forecasting ASDR in Malaysia. Then, accuracy of the LC-SS compared to the original LC can be further examined by verifying the forecasting power using out-of-sample comparison.

  19. Structural modeling of age specific fertility curves in Peninsular Malaysia: An approach of Lee Carter method

    Science.gov (United States)

    Hanafiah, Hazlenah; Jemain, Abdul Aziz

    2013-11-01

    In recent years, the study of fertility has been getting a lot of attention among research abroad following fear of deterioration of fertility led by the rapid economy development. Hence, this study examines the feasibility of developing fertility forecasts based on age structure. Lee Carter model (1992) is applied in this study as it is an established and widely used model in analysing demographic aspects. A singular value decomposition approach is incorporated with an ARIMA model to estimate age specific fertility rates in Peninsular Malaysia over the period 1958-2007. Residual plots is used to measure the goodness of fit of the model. Fertility index forecast using random walk drift is then utilised to predict the future age specific fertility. Results indicate that the proposed model provides a relatively good and reasonable data fitting. In addition, there is an apparent and continuous decline in age specific fertility curves in the next 10 years, particularly among mothers' in their early 20's and 40's. The study on the fertility is vital in order to maintain a balance between the population growth and the provision of facilities related resources.

  20. llc: a collection of R functions for fitting a class of Lee-Carter mortality models using iterative fitting algorithms

    OpenAIRE

    Butt, Z.; Haberman, S

    2009-01-01

    We implement a specialised iterative regression methodology in R for the analysis of age-period mortality data based on a class of generalised Lee-Carter (LC) type modelling structures. The LC-based modelling frameworks is viewed in the current literature as among the most efficient and transparent methods of modelling and projecting mortality improvements. Thus, we make use of the modelling approach discussed in Renshaw and Haberman (2006), which extends the basic LC model and proposes to ma...

  1. Generalized Friedberg-Lee model for CP violation in neutrino physics

    CERN Document Server

    Razzaghi, N; 10.1103/PhysRevD.86.053006

    2012-01-01

    We propose a phenomenological model of Dirac neutrino mass operator based on the Fridberg-Lee (FL) neutrino mass model to include CP violation. By considering the most general set of complex coefficients, and imposing the condition that the mass eigenvalues are real, we find a neutrino mass matrix which is non-hermitian, symmetric and magic. In particular, we find that the requirement of obtaining real mass eigenvalues by transferring the residual phases to the mass eigenstates self-consistently, dictates the following relationship between the imaginary part of the mass matrix elements $B$ and the parameters of the FL model: $B=\\pm\\sqrt{3/4(a-b_{r})^{2}\\sin^{2}2\\theta_{13}\\cos^{2}\\theta_{12}}$. We obtain inverted neutrino mass hierarchy, $m_{3}=0$. Making a correspondence between our model and the experimental data produces stringent conditions on the parameters as follows: $35.06^{\\circ}\\lesssim\\theta_{12}\\lesssim36.27^{\\circ}$, $\\theta_{23}= 45^{\\circ}$, $7.27^{\\circ}\\lesssim\\theta_{13}\\lesssim11.09^{\\circ}...

  2. Physical modelling of baroclinic development in the lee of the Alps

    Directory of Open Access Journals (Sweden)

    E. Ferrero

    1997-06-01

    Full Text Available When baroclinic development is triggered by an obstacle, like an extended mountain range, the so-called lee, or secondary cyclogenesis can develop. The presence of the obstacle exerts a blocking effect on the lower layers of the impinging airflow, forcing them to go round its borders and reach the lee region with a delay. Blocking and delay are both responsible for the initial pressure decrease downwind of the mountain and for the subsequent proper downstream baroclinic development. According to this rather simple scheme, a cyclogenesis episode in the lee of the Alps was simulated in a hydraulic turntable. The results of these experiments showed a good agreement, both from a qualitative and quantitative point of view, with the analysis of an episode of lee cyclogenesis coupled to a cold outbreak in the Mediterranean, which actually occured in Southern Europe downstream of the Alps.

  3. Lightness of Higgs Boson and Spontaneous CP-violation in the Lee Model: An Alternative Scenario

    CERN Document Server

    Mao, Ying-nan

    2016-01-01

    Based on the weakly-coupled two-Higgs-doublet model with spontaneous CP-violation (named Lee model) and the mechanism to generate the correlation between smallness of CP-violation and lightness of scalar mass, as we proposed earlier, we predicted a light CP-mixing scalar $\\eta$ in which pseudoscalar component is dominant. It is a natural scenario in which $m_{\\eta}\\sim\\mathcal{O}(10\\textrm{GeV})\\ll v$. Masses of all other scalars ($h$, $H$, $H^\\pm$) should be around the electro-weak scale $v$. Among them, the 125 GeV Higgs ($h$) couplings are standard-model like, and the charged Higgs ($H^\\pm$) mass should be around the heaviest neutral scalar ($H$) mass. We discussed all experimental constraints and showed that this scenario is still allowed by data. The strictest constraints come from the experiments of the flavor-changing processes and the EDM of lepton and neutron. We also discussed the future tests for this scenario. It is possible to discover the extra scalars or exclude this scenario at future collider...

  4. Ultraviolet Properties of the Higgs Sector in the Lee-Wick Standard Model

    CERN Document Server

    Espinosa, J R

    2011-01-01

    The Lee-Wick (LW) Standard Model (SM) offers a new solution to the hierarchy problem. We discuss, using effective potential techniques, its peculiar ultraviolet (UV) behaviour. We show how quadratic divergences in the Higgs mass Mh cancel as a result of the unusual dependence of LW fields on the Higgs background (in a manner reminiscent of Little Higgses). We then extract from the effective potential the renormalization group evolution of the Higgs quartic coupling lambda above the LW scale. After clarifying an apparent discrepancy with previous results for the LW Abelian Higgs model we focus on the LWSM. In contrast with the SM case, for any Mh, lambda grows monotonically and hits a Landau pole at a fixed trans-Planckian scale (never turning negative in the UV). Then, the perturbativity and stability bounds on Mh disappear. We identify a cutoff ~10^{16} GeV for the LWSM due to the hypercharge gauge coupling hitting a Landau pole. Finally, we also discuss briefly the possible impact of the UV properties of th...

  5. Nobelist TD LEE Scientist Cooperation Network and Scientist Innovation Ability Model

    Directory of Open Access Journals (Sweden)

    Jin-Qing Fang

    2013-01-01

    Full Text Available Nobelist TD Lee scientist cooperation network (TDLSCN and their innovation ability are studied. It is found that the TDLSCN not only has the common topological properties both of scale-free and small-world for a general scientist cooperation networks, but also appears the creation multiple-peak phenomenon for number of published paper with year evolution, which become Nobelist TD Lee’s significant mark distinguished from other scientists. This new phenomenon has not been revealed in the scientist cooperation networks before. To demonstrate and explain this new finding, we propose a theoretical model for a nature scientist and his/her team innovation ability. The theoretical results are consistent with the empirical studies very well. This research demonstrates that the model has a certain universality and can be extended to estimate innovation ability for any nature scientist and his/her team. It is a better method for evaluating scientist innovation ability and his/her team for the academic profession and is of application potential.

  6. Yang-Lee zeros of the two- and three-state Potts model defined on phi3 Feynman diagrams.

    Science.gov (United States)

    de Albuquerque, Luiz C; Dalmazi, D

    2003-06-01

    We present both analytical and numerical results on the position of partition function zeros on the complex magnetic field plane of the q=2 state (Ising) and the q=3 state Potts model defined on phi(3) Feynman diagrams (thin random graphs). Our analytic results are based on the ideas of destructive interference of coexisting phases and low temperature expansions. For the case of the Ising model, an argument based on a symmetry of the saddle point equations leads us to a nonperturbative proof that the Yang-Lee zeros are located on the unit circle, although no circle theorem is known in this case of random graphs. For the q=3 state Potts model, our perturbative results indicate that the Yang-Lee zeros lie outside the unit circle. Both analytic results are confirmed by finite lattice numerical calculations.

  7. Neutrino mixing matrix and masses from a generalized Friedberg-Lee model

    Science.gov (United States)

    Razzaghi, N.; Gousheh, S. S.

    2014-02-01

    The overall characteristics of the solar and atmospheric neutrino oscillation are approximately consistent with a tribimaximal form of the mixing matrix U of the lepton sector. Exact tribimaximal mixing leads to θ13=0. However, recent results from the Daya Bay and RENO experiments have established a nonzero value for θ13. Keeping the leading behavior of U as tribimaximal, we use a generalized Friedberg-Lee neutrino mass model along with a complementary ansatz to incorporate a nonzero θ13 along with CP violation. We generalize this model in two stages: In the first stage, we assume μ -τ symmetry and add imaginary components which leads to nonzero phases. In the second stage, we add a perturbation with real components which breaks the μ-τ symmetry, and this leads to a nonzero value for θ13. The combination of these two generalizations leads to CP violation. Using only two sets of the experimental data, we can fix all of the parameters of our model and predict not only values for the other experimental data, which agree well with the available data, but also the masses of neutrinos and the CP-violating phases and parameters. These predictions include the following: ⟨mνe⟩≈(0.033-0.037) eV, ⟨mνμ⟩≈(0.043-0.048) eV, ⟨mντ⟩≈(0.046-0.051) eV, and 59.21°≲δ ≲59.34°.

  8. Non-local Lee-Wick modes in the fermionic Myers-Pospelov model

    CERN Document Server

    Lopez-Sarrion, Justo

    2011-01-01

    General solutions and dispersion relations are given explicitly in the Lorentz invariance violating fermionic sector of the Myers and Pospelov theory. We quantize the theory and identify Lee-Wick modes due to the higher time-derivative terms. We analyze the non local character of these modes and discuss the loss of microcausality.

  9. Nobelist TD LEE Scientist Cooperation Network and Scientist Innovation Ability Model

    OpenAIRE

    2013-01-01

    Nobelist TD Lee scientist cooperation network (TDLSCN) and their innovation ability are studied. It is found that the TDLSCN not only has the common topological properties both of scale-free and small-world for a general scientist cooperation networks, but also appears the creation multiple-peak phenomenon for number of published paper with year evolution, which become Nobelist TD Lee’s significant mark distinguished from other scientists. This new phenomenon has not been revealed in the scie...

  10. Nobelist TD Lee Scientist Cooperation Network and Scientist Innovation Ability Model

    Institute of Scientific and Technical Information of China (English)

    FANG; Jin-qing; LIU; Qiang

    2013-01-01

    We have studied Nobelist TD Lee scientist cooperation network(TDLSCN)and their innovation ability(Fig.1a).It is found that TDLSCN not only has the common topological properties both of scale-free and small-world for a general scientist cooperation network,but also the number of TD Lee’s published article appears the phenomenon of multiple-peak with year evolution,which becomes Nobelist TD Lee’s

  11. One loop quantum fluctuations to the energy of the non-topological soliton in Friedberg-Lee model

    CERN Document Server

    Shu, Song

    2016-01-01

    I have used a practical method to calculate the one-loop quantum correction to the energy of the non-topological soliton in Friedberg-Lee model. The quantum effects which come from the quarks of the Dirac sea scattering with the soliton bag are calculated by a summation of the discrete and continuum energy spectrum of the Dirac equation in the background field of soliton. The phase shift of the continuum spectrum is numerically calculated in an efficient way and all the divergences are removed by the same renormalization procedure.

  12. Evaluating the performance of the Lee-Carter method and its variants in modelling and forecasting Malaysian mortality

    Science.gov (United States)

    Zakiyatussariroh, W. H. Wan; Said, Z. Mohammad; Norazan, M. R.

    2014-12-01

    This study investigated the performance of the Lee-Carter (LC) method and it variants in modeling and forecasting Malaysia mortality. These include the original LC, the Lee-Miller (LM) variant and the Booth-Maindonald-Smith (BMS) variant. These methods were evaluated using Malaysia's mortality data which was measured based on age specific death rates (ASDR) for 1971 to 2009 for overall population while those for 1980-2009 were used in separate models for male and female population. The performance of the variants has been examined in term of the goodness of fit of the models and forecasting accuracy. Comparison was made based on several criteria namely, mean square error (MSE), root mean square error (RMSE), mean absolute deviation (MAD) and mean absolute percentage error (MAPE). The results indicate that BMS method was outperformed in in-sample fitting for overall population and when the models were fitted separately for male and female population. However, in the case of out-sample forecast accuracy, BMS method only best when the data were fitted to overall population. When the data were fitted separately for male and female, LCnone performed better for male population and LM method is good for female population.

  13. Soft X-ray Emission Optimization Studies with Krypton and Xenon Gases in Plasma Focus Using Lee Model

    Science.gov (United States)

    Akel, Mohamad

    2013-10-01

    The X-ray emission properties of krypton and xenon plasmas are numerically investigated using corona plasma equilibrium model. Numerical experiments have been investigated on various low energy plasma focus devices with Kr and Xe filling gases using Lee model. The Lee model was applied to characterize and to find the optimum combination of soft X-ray yields (Ysxr) for krypton (~4 Å) and xenon (~3 Å) plasma focus. These combinations give Ysxr = 0.018 J for krypton, and Ysxr = 0.5 J for xenon. Scaling laws on Kr and Xe soft X-ray yields, in terms of storage energies E0, peak discharge current Ipeak and focus pinch current Ipinch were found over the range from 2.8 to 900 kJ. Soft X-ray yields scaling laws in terms of storage energies were found to be as and for Kr and Xe, respectively, (E0 in kJ and Ysxr in J) with the scaling showing gradual deterioration as E0 rises over the range. The maximum soft X-ray yields are found to be about 0.5 and 27 J from krypton and xenon, respectively, for storage energy of 900 kJ. The optimum efficiencies for soft X-ray yields (0.0002 % for Kr) and (0.0047 % for Xe) are with capacitor bank energies of 67.5 and 225 kJ, respectively.

  14. Generalized Friedberg-Lee Model for Neutrino Masses and Leptonic CP Violation from μ-τ Symmetry Breaking

    Science.gov (United States)

    Xing, Zhi-Zhong; Zhang, He; Zhou, Shun

    Assuming the Majorana nature of massive neutrinos, we generalize the Friedberg-Lee neutrino mass model to include CP violation in the neutrino mass matrix Mν. The most general case with all the free parameters of Mν being complex is discussed. We show that a favorable neutrino mixing pattern (with θ12 ≈ 35.3°, θ23 = 45°, θ13 ≠ 0° and δ = 90°) can naturally be derived from Mν, if it has an approximate or softly-broken μ-τ symmetry. We also point out a different way to obtain the nearly tri-bimaximal neutrino mixing pattern with δ = 0° and non-vanishing Majorana phases.

  15. Above And Beyond The Standard Model: On Phenomenology Of Lee-Wick Theory And Massive Vector Color-Octet

    CERN Document Server

    Farzinnia, Arsham

    2012-01-01

    The present Thesis is dedicated to a formal and phenomenological investigation of extensions to two separate sectors of the Standard Model of particle physics (SM): the electroweak sector and the strong sector. The Thesis is divided into two main parts: Part I focuses on the Lee-Wick Standard Model (LW SM), which, by providing a solution to the Hierarchy problem, forms a natural extension of the electroweak sector, while Part II studies the coloron theory, arising from extending the strong sector gauge group. Providing a general introduction about the current state of the SM and the associated challenges in Chapter 1, we proceed in Chapter 2 to analyze the tension between naturalness and isospin violation in the LW SM. Chapter 3 discusses the global symmetries and the renormalizability of LW scalar QED. A first complete calculation of QCD corrections to the production of a massive color-octet vector boson (colorons) is reported in Chapter 4. Finally, we conclude the Thesis in Chapter 5 by summarizing the disc...

  16. Lee Wick Dark Energy

    CERN Document Server

    Lee, Seokcheon

    2008-01-01

    We consider the cosmological application of Lee-Wick theory where a field has a higher derivative kinetic operators. The higher derivative term can be eliminated by introducing a set of auxiliary fields. We investigate the cosmological evolutions of these fields as a candidate of dark energy. This model has the same structure as so called ``quintom' model except the form of potentials and the sign of the slope of the potentials. This model can give the stable late time phantom dominated scaling solution ($\\omega_{\\DE} < -1$) or tracking attractors ($\\omega_{\\DE} = 0$) depending on the choice of the slopes of the potential. In order to be a viable dark energy candidate, the present energy density contrast of dark energy ($\\Omega_{\\DE}^{(0)}$) should be close to an observed value (0.73) at the same time. However, a simple toy model of the theory can not satisfy both $\\omega_{\\DE}^{(0)} \\simeq -1$ and $\\Omega_{\\DE}^{(0)} = 0.73$. This is also true for any quintom model in literatures unless we suffer from the...

  17. Tim Berners-Lee

    Institute of Scientific and Technical Information of China (English)

    洪涛

    2006-01-01

    Tim Berners-Lee,computer scientist,was born in 1955 in London, England.His parents were both mathematicians,who worked on the Ferranti Mark I,the first computer to be sold commercially.Berners- Lee’s childhood hobby was electronics.When he entered Queen’s College at Oxford University in 1972,Berners-Lee chose to major in

  18. Generalization of Friedberg-Lee symmetry

    Science.gov (United States)

    Huang, Chao-Shang; Li, Tianjun; Liao, Wei; Zhu, Shou-Hua

    2008-07-01

    We study the possible origin of Friedberg-Lee symmetry. First, we propose the generalized Friedberg-Lee symmetry in the potential by including the scalar fields in the field transformations, which can be broken down to the Friedberg-Lee symmetry spontaneously. We show that the generalized Friedberg-Lee symmetry allows a typical form of Yukawa couplings, and the realistic neutrino masses and mixings can be generated via the seesaw mechanism. If the right-handed neutrinos transform nontrivially under the generalized Friedberg-Lee symmetry, we can have the testable TeV scale seesaw mechanism. Second, we present two models with the SO(3)×U(1) global flavor symmetry in the lepton sector. After the flavor symmetry breaking, we can obtain the charged lepton masses, and explain the neutrino masses and mixings via the seesaw mechanism. Interestingly, the complete neutrino mass matrices are similar to those of the above models with generalized Friedberg-Lee symmetry. So the Friedberg-Lee symmetry is the residual symmetry in the neutrino mass matrix after the SO(3)×U(1) flavor symmetry breaking.

  19. Yang-Lee Circle Theorem for an Antiferromagnetic Heisenberg Ladder

    Institute of Scientific and Technical Information of China (English)

    王先智

    2001-01-01

    The Yang-Lee zeros of an antiferromagnetic Heisenberg ladder model are determined. It is found that if J4≤0 Yang-Lee zeros are located on the unit circle and on the negative real axis in the complex activity plane. In particular, if J4≤0 and 2J2≥J4, Yang-Lee zeros are located on the unit circle and the Yang-Lee circle theorem is valid. If J4 > 0, Yang-Lee zeros are located on some complicated curves.

  20. Generalization of Friedberg-Lee Symmetry

    CERN Document Server

    Huang, Chao-Shang; Liao, Wei; Zhu, Shou-Hua

    2008-01-01

    We study the possible origin of Friedberg-Lee symmetry. First, we propose the generalized Friedberg-Lee symmetry in the potential by including the scalar fields in the field transformations, which can be broken down to the FL symmetry spontaneously. We show that the generalized Friedberg-Lee symmetry allows a typical form of Yukawa couplings, and the realistic neutrino masses and mixings can be generated via see-saw mechanism. If the right-handed neutrinos transform non-trivially under the generalized Friedberg-Lee symmetry, we can have the testable TeV scale see-saw mechanism. Second, we present two models with the $SO(3)\\times U(1)$ global flavour symmetry in the lepton sector. After the flavour symmetry breaking, we can obtain the charged lepton masses, and explain the neutrino masses and mixings via see-saw mechanism. Interestingly, the complete neutrino mass matrices are similar to those of the above models with generalized Friedberg-Lee symmetry. So the Friedberg-Lee symmetry is the residual symmetry in...

  1. On Maximum Lee Distance Codes

    OpenAIRE

    Alderson, Tim L.; Svenja Huntemann

    2013-01-01

    Singleton-type upper bounds on the minimum Lee distance of general (not necessarily linear) Lee codes over ℤq are discussed. Two bounds known for linear codes are shown to also hold in the general case, and several new bounds are established. Codes meeting these bounds are investigated and in some cases characterised.

  2. Management recommendations: Lee Metcalf Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document is a review of land management practices at the Lee Metcalf National Wildlife Refuge, by a land use specialist. Recommendations, time frame and...

  3. A light sterile neutrino from Friedberg–Lee symmetry

    National Research Council Canada - National Science Library

    He, Xiao-Gang; Liao, Wei

    2014-01-01

    .... In this article we show that such an eV scale light sterile neutrino candidate can be obtained in a seesaw model in which the right-handed neutrinos satisfy a softly-broken Friedberg-Lee (FL) symmetry...

  4. NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Tampa (FL) WFO - Manatee, Sarasota, Charlotte, and Lee Counties

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This digital elevation model (DEM) is a part of a series of DEMs produced for the National Oceanic and Atmospheric Administration Office for Coastal Management's Sea...

  5. Predicting bed form roughness: the influence of lee side angle

    Science.gov (United States)

    Lefebvre, Alice; Winter, Christian

    2016-04-01

    Flow transverse bedforms (ripples and dunes) are ubiquitous in rivers and coastal seas. Local hydrodynamics and transport conditions depend on the size and geometry of these bedforms, as they constitute roughness elements at the bed. Bedform influence on flow energy must be considered for the understanding of flow dynamics, and in the development and application of numerical models. Common estimations or predictors of form roughness (friction factors) are based mostly on data of steep bedforms (with angle-of-repose lee slopes), and described by highly simplified bedform dimensions (heights and lengths). However, natural bedforms often are not steep, and differ in form and hydraulic effect relative to idealised bedforms. Based on systematic numerical model experiments, this study shows how the hydraulic effect of bedforms depends on the flow structure behind bedforms, which is determined by the bedform lee side angle, aspect ratio and relative height. Simulations reveal that flow separation behind bedform crests and, thus, a hydraulic effect is induced at lee side angles steeper than 11 to 18° depending on relative height, and that a fully developed flow separation zone exists only over bedforms with a lee side angle steeper than 24°. Furthermore, the hydraulic effect of bedforms with varying lee side angle is evaluated and a reduction function to common friction factors is proposed. A function is also developed for the Nikuradse roughness (k s), and a new equation is proposed which directly relates k s to bedform relative height, aspect ratio and lee side angle.

  6. Nuclear matter in nontopological soliton models with quark-meson coupling 24.85.+p; 12.39.Ki; 21.65.+f; Nontopological soliton; Chiral chromodielectric model; Friedberg-Lee model; Nuclear matter

    CERN Document Server

    Barnea, N

    2000-01-01

    A system of nontopological solitons interacting through meson exchange is used to model dense nuclear matter. The models studied are of the Friedberg-Lee type, which exhibit dynamical bag formation due to the coupling of quarks to a scalar composite gluon field sigma. It is shown in the Wigner-Seitz approximation that the high density behavior of such models depends essentially on the leading power of the quark-sigma coupling vertex. By insisting that the parameters of any soliton model be chosen to reproduce single nucleon properties, this high-density behavior then selects a promising class of models that better fit the empirical results -- the chiral chromodielectric models. The presence of a scalar meson is shown to provide saturation as well as an increase of the proton charge radius with nuclear density. We go beyond the usual Wigner-Seitz approximation by introducing the disorder necessary to reproduce the liquid state, using the significant structure theory of physical chemistry. We study nuclear matt...

  7. Oxygen Consumption by Postfermentation Wine Yeast Lees: Factors Affecting Its Rate and Extent under Oenological Conditions

    OpenAIRE

    Schneider, Volker; Müller, Jonas; Schmidt, Dominik

    2016-01-01

    Postfermentation wine yeast lees show antioxidant properties based on their ability to consume dissolved oxygen. The oxygen consumption capacity of suspended yeast lees obtained after fermentations with six commercial active dry yeast strains was investigated in model, white and red wines using fluorescence-based oxygen sensors operating in a nondestructive way. In model solution, the oxygen consumption rate of yeast lees was shown to depend on their amount, yeast strain, sulfur dioxide and t...

  8. 封闭人群生存人数整体预测--以Lee-Carter模型为例%Forecasting the Whole Number of the Survival in Isolated Population:Using Lee-Carter Model

    Institute of Scientific and Technical Information of China (English)

    王志刚; 王晓军; 张学斌

    2016-01-01

    Forecasting the survival’ s number of isolated population consisting of various groups, is the base of the related economic, social issues research. However, when studying the related problems, a general way of obtaining prediction is to estimate expectation of each group’ s survival’ s number, which is categorized according to some characteristics, and then the whole survivors ’ s number can be obtained by summing them. Since this method ignores the correlation of between the different characteristics of the population, the volatility of survival’ s number of people is usually underestimated. In this paper, the Lee⁃Carter model will be extended by capturing mortality correlations between groups, and we can obtain the whole survival’ s number in one step, using the extended model. Then the existing methods and new methods are compared by theoretical analysis and numerical simulation methods. The conclusion is, only when the expectation can be accurately estimated by the two methods, the old methods can’ t work well both in predicting variability and distribution, so the new method is recommended.%由不同组别人群组成封闭人群整体生存人数的预测是相关经济、社会问题研究的基础。现有文献在研究相关问题时,使用的方法为:首先根据动态死亡率模型对其中具有相同特征不同部分的生存人数进行预测,之后通过加总得到整体人数的预测(简称现有方法)。由于现有方法忽略了不同特征人群死亡率变动间相关性的影响,会低估生存人数的波动性。本文使用Lee⁃Carter模型,在将封闭人群按性别分组的基础上,给出了构建生存人数整体预测模型的过程和实例。并通过理论分析和数值模拟两个视角对现有方法和新方法做了比较。比较结果指出:在死亡率波动具有广泛相关性的现实世界中,只有在均值预测时,现有方法才可以达到预期效果,因此笔者

  9. Collider Bounds on Lee-Wick Higgs Bosons

    CERN Document Server

    Alvarez, Ezequiel; Zurita, José

    2011-01-01

    We study the constraints on the Lee-Wick Higgs sector arising from direct collider searches. We work in an effective-field theory framework, where all of the Lee-Wick partners are integrated out, with the sole exception of the Lee-Wick Higgs bosons. The resulting theory is a two-Higgs doublet model where the second doublet has wrong-sign kinetic and mass terms. We include the bounds coming from direct Higgs searches at both LEP and Tevatron using the code HiggsBounds, and show the currently excluded parameter space. We also analyze the prospects of LHC Run-I, finding that with a total integrated luminosity of 5 fb $^{-1}$ and a center-of-mass energy of 7 TeV, most of the parameter space for the SM-like CP-even Higgs will be probed.

  10. Lee-Wick Black Holes

    CERN Document Server

    Bambi, Cosimo; Wang, Yixu

    2016-01-01

    We derive and study an approximate static vacuum solution generated by a point-like source in a higher derivative gravitational theory with a pair of complex conjugate ghosts. The gravitational theory is local and characterized by a high derivative operator compatible with Lee-Wick unitarity. In particular, the tree-level two-point function only shows a pair of complex conjugate poles besides the massless spin two graviton. We show that singularity-free black holes exist when the mass of the source $M$ exceeds a critical value $M_{\\rm crit}$. For $M > M_{\\rm crit}$ the spacetime structure is characterized by an outer event horizon and an inner Cauchy horizon, while for $M = M_{\\rm crit}$ we have an extremal black hole with vanishing Hawking temperature. The evaporation process leads to a remnant that approaches the zero-temperature extremal black hole state in an infinite amount of time.

  11. Lee-Wick black holes

    Science.gov (United States)

    Bambi, Cosimo; Modesto, Leonardo; Wang, Yixu

    2017-01-01

    We derive and study an approximate static vacuum solution generated by a point-like source in a higher derivative gravitational theory with a pair of complex conjugate ghosts. The gravitational theory is local and characterized by a high derivative operator compatible with Lee-Wick unitarity. In particular, the tree-level two-point function only shows a pair of complex conjugate poles besides the massless spin two graviton. We show that singularity-free black holes exist when the mass of the source M exceeds a critical value Mcrit. For M >Mcrit the spacetime structure is characterized by an outer event horizon and an inner Cauchy horizon, while for M =Mcrit we have an extremal black hole with vanishing Hawking temperature. The evaporation process leads to a remnant that approaches the zero-temperature extremal black hole state in an infinite amount of time.

  12. Quark masses and mixings with hierarchical Friedberg-Lee symmetry

    Science.gov (United States)

    Araki, Takeshi; Geng, C. Q.

    2010-04-01

    We consider the Friedberg-Lee symmetry for the quark sector and show that the symmetry closely relates to both quark masses and mixing angles. We also extend our scheme to the fourth generation quark model and find the relation |Vtb'|≃|Vt'b|≃mb/mb'199GeV.

  13. Quark Masses and Mixings with Hierarchical Friedberg-Lee Symmetry

    CERN Document Server

    Araki, T

    2010-01-01

    We propose the hierarchically translating Friedberg-Lee (FL) symmetry for the quark sector and show that the symmetry closely relates to both quark masses and mixings angles. We also extend our scheme to the fourth generation quark model and find the relation $|V_{tb^{'}}| \\simeq |V_{t^{'}b}| \\simeq m_b/m_{b^{'}}199 \\gev$.

  14. Fort Lee's Comprehensive Peer Outreach Program.

    Science.gov (United States)

    Kehayan, V. Alex

    This paper describes the Peer Outreach Service Team (POST), a peer multi-service, student support system organization operating in the Fort Lee schools in Fort Lee, New Jersey. The goals of the POST program are described as reducing numbers of school dropouts as well as levels of negative behavior, chemical dependency, teenage depression, and…

  15. Tim Berners-Lee during the WSIS

    CERN Multimedia

    Maximilien Brice

    2003-01-01

    Tim Berners-Lee stands in front of the first web server at the Geneva Palexpo during the World Summit on the Information Society (WSIS) in 2003. Tim Berners-Lee developed the first network and server system that lead to the World Wide Web.

  16. Marion McGregor Lee Loy

    Science.gov (United States)

    Rossi, Joe

    2007-01-01

    This article presents an interview with Marion Frances Kaleleonalani McGregor Lee Loy who served as a teacher in the Hawai'i Department of Education from 1935 to 1974. Marion McGregor Lee Loy was born in 1911 in Honolulu. She attended Central Grammar and Lincoln Grammar schools before entering Kamehameha School for Girls in the ninth grade. Lee…

  17. The Earl Lee Street Art Campaign

    Science.gov (United States)

    Bubba

    2013-01-01

    This article describes a catchy phrase with more to its meaning than first view. A slogan "All the girls love Earl Lee," appears in street art around the world. Earl Lee is a lovable, handsome man who owns the fictitious Earl Lube industries. Originally intended to bring a smile to people's faces at a time when there wasn't much to smile…

  18. Effect of the Lee-Wick partners in the evolution of the early universe

    CERN Document Server

    Bhattacharya, Kaushik

    2012-01-01

    Recently some work has been done on Lee-Wick standard model where the authors tried to tackle the hierarchy problem by using higher derivative field theory. All those theories require unusual Lee-Wick partners to the Standard model particles where these unusual fields appear with negative signs in the Lagrangian. The thermodynamics of such unusual Lee-Wick particles has also been studied. In the present article the thermodynamic results of the Lee-Wick partner infested universe have been applied in a model where there is one Lee-Wick partner to each of the standard model particle. In this model one can analytically calculate the time-temperature relation in the very early radiation dominated universe which shows interesting new physics. The article also tries to point out how a Lee-Wick particle dominated early cosmology transforms into the standard cosmological model. Based on the results of the previous analysis a brief discussion on the more realistic model, which can accommodate two Lee-Wick parters for e...

  19. A new formulation of Lee-Wick quantum field theory

    Science.gov (United States)

    Anselmi, Damiano; Piva, Marco

    2017-06-01

    The Lee-Wick models are higher-derivative theories that are claimed to be unitary thanks to a peculiar cancelation mechanism. In this paper, we provide a new formulation of the models, to clarify several aspects that have remained quite mysterious, so far. Specifically, we define them as nonanalytically Wick rotated Euclidean theories. The complex energy plane is divided into disconnected regions, which can be related to one another by a well-defined, albeit nonanalytic procedure. Working in a generic Lorentz frame, the models are intrinsically equipped with the right recipe to treat the pinchings of the Lee-Wick poles, with no need of external ad hoc prescriptions. We describe these features in detail by calculating the one-loop bubble diagram and explaining how the key properties generalize to more complicated diagrams. The physical results of our formulation are different from those of the previous ones. The unusual behaviors of the physical amplitudes lead to interesting phenomenological predictions.

  20. Robert Lee Pyle honored with emeritus status

    OpenAIRE

    Douglas, Jeffrey S.

    2007-01-01

    Dr. Robert Lee Pyle of Blacksburg, professor of cardiology in the Department of Small Animal Clinical Science at the Virginia-Maryland Regional College of Veterinary Medicine at Virginia Tech, was conferred the "professor emeritus" title by the Virginia Tech Board of Visitors during the board's quarterly meeting August 27.

  1. Courtland Lee: A Global Advocate for Counseling

    Science.gov (United States)

    Gladding, Samuel T.

    2011-01-01

    Courtland Lee is exemplary in his accomplishments nationally and internationally. His academic achievements are notable in multicultural counseling and social justice. His leadership in counseling has been outstanding with his having served as president of the American Counseling Association, the Association for Multicultural Counseling and…

  2. JFK in Blackface: Spike Lee's "Malcolm X."

    Science.gov (United States)

    Walker, Clarence E.

    1993-01-01

    Discusses the failure of filmmaker Spike Lee to grapple with the real politics of Malcolm X before and after he left the Nation of Islam. Acknowledging the complexity of the man and his context would avoid creating a mythical figure similar to Oliver Stone's movie "JFK." (SLD)

  3. Oxygen Consumption by Postfermentation Wine Yeast Lees: Factors Affecting Its Rate and Extent under Oenological Conditions

    Directory of Open Access Journals (Sweden)

    Jonas Müller

    2016-01-01

    Full Text Available Postfermentation wine yeast lees show antioxidant properties based on their ability to consume dissolved oxygen. The oxygen consumption capacity of suspended yeast lees obtained after fermentations with six commercial active dry yeast strains was investigated in model, white and red wines using fluorescence-based oxygen sensors operating in a nondestructive way. In model solution, the oxygen consumption rate of yeast lees was shown to depend on their amount, yeast strain, sulfur dioxide and temperature. It is slightly lower in red than in white wines. It is strongly decreased by current levels of free sulfur dioxide, thus excluding the complementary use of both as antioxidants in wine. However, in 25 randomly sampled white wines produced under commercial conditions, the rate and extent of oxygen consumption during the first six months of postfermentation had no significant correlation with any of these interacting factors, making it difficult to predict the actual antioxidant effect of yeast lees. In these wines, yeast lees consumed 0 to 47 % of the dissolved oxygen. Although total oxygen consumption capacity of yeast lees is not a limiting factor under commercial winemaking conditions, their oxygen consumption proceeds at a limited rate that reduces but cannot totally prevent concomitant chemical oxidation of the wine.

  4. Oxygen Consumption by Postfermentation Wine Yeast Lees: Factors Affecting Its Rate and Extent under Oenological Conditions

    Science.gov (United States)

    Müller, Jonas; Schmidt, Dominik

    2016-01-01

    Summary Postfermentation wine yeast lees show antioxidant properties based on their ability to consume dissolved oxygen. The oxygen consumption capacity of suspended yeast lees obtained after fermentations with six commercial active dry yeast strains was investigated in model, white and red wines using fluorescence-based oxygen sensors operating in a nondestructive way. In model solution, the oxygen consumption rate of yeast lees was shown to depend on their amount, yeast strain, sulfur dioxide and temperature. It is slightly lower in red than in white wines. It is strongly decreased by current levels of free sulfur dioxide, thus excluding the complementary use of both as antioxidants in wine. However, in 25 randomly sampled white wines produced under commercial conditions, the rate and extent of oxygen consumption during the first six months of postfermentation had no significant correlation with any of these interacting factors, making it difficult to predict the actual antioxidant effect of yeast lees. In these wines, yeast lees consumed 0 to 47% of the dissolved oxygen. Although total oxygen consumption capacity of yeast lees is not a limiting factor under commercial winemaking conditions, their oxygen consumption proceeds at a limited rate that reduces but cannot totally prevent concomitant chemical oxidation of the wine. PMID:28115896

  5. On the linear programming bound for linear Lee codes.

    Science.gov (United States)

    Astola, Helena; Tabus, Ioan

    2016-01-01

    Based on an invariance-type property of the Lee-compositions of a linear Lee code, additional equality constraints can be introduced to the linear programming problem of linear Lee codes. In this paper, we formulate this property in terms of an action of the multiplicative group of the field [Formula: see text] on the set of Lee-compositions. We show some useful properties of certain sums of Lee-numbers, which are the eigenvalues of the Lee association scheme, appearing in the linear programming problem of linear Lee codes. Using the additional equality constraints, we formulate the linear programming problem of linear Lee codes in a very compact form, leading to a fast execution, which allows to efficiently compute the bounds for large parameter values of the linear codes.

  6. Leptogenesis with Friedberg-Lee Symmetry

    Science.gov (United States)

    Araki, Takeshi; Geng, C. Q.

    We consider the µ - τ symmetric Friedberg-Lee (FL) symmetry for the neutrino sector and show that a specific FL translation leads to the tribimaximal mixing pattern of the Maki-Nakagawa-Sakata (MNS) matrix. We also apply the symmetry to the type-I seesaw framework and address the baryon asymmetry of the universe through the leptogenesis mechanism. We try to establish a relation between the net baryon asymmetry and CP phases included in the MNS matrix.

  7. Leptogenesis with Friedberg-Lee Symmetry

    CERN Document Server

    Araki, Takeshi

    2010-01-01

    We consider the $\\mu-\\tau$ symmetric Friedberg-Lee (FL) symmetry for the neutrino sector and show that a specific FL translation leads to the tribimaximal mixing pattern of the Maki-Nakagawa-Sakata (MNS) matrix. We also apply the symmetry to the type-I seesaw framework and address the baryon asymmetry of the universe through the leptogenesis mechanism. We try to establish a relation between the net baryon asymmetry and CP phases included in the MNS matrix.

  8. Tri-bimaximal mixing from twisted Friedberg-Lee symmetry

    Energy Technology Data Exchange (ETDEWEB)

    Araki, Takeshi [National Tsing Hua University, Department of Physics, Hsinchu (China); Takahashi, Ryo [Osaka University, Department of Physics, Graduate School of Science, Osaka (Japan)

    2009-10-15

    We investigate the Friedberg-Lee (FL) symmetry and its promotion to include the {mu}-{tau} symmetry, and call this the twisted FL symmetry. Based on the twisted FL symmetry, two possible schemes are presented toward the realistic neutrino mass spectrum and the tri-bimaximal mixing. In the first scheme, we suggest the semi-uniform translation of the FL symmetry. The second one is based on the S{sub 3} permutation family symmetry. The breaking terms, which are twisted FL symmetric, are introduced. Some viable models in each scheme are also presented. (orig.)

  9. Tri-bimaximal mixing from twisted Friedberg-Lee symmetry

    Science.gov (United States)

    Araki, Takeshi; Takahashi, Ryo

    2009-10-01

    We investigate the Friedberg-Lee (FL) symmetry and its promotion to include the μ- τ symmetry, and call this the twisted FL symmetry. Based on the twisted FL symmetry, two possible schemes are presented toward the realistic neutrino mass spectrum and the tri-bimaximal mixing. In the first scheme, we suggest the semi-uniform translation of the FL symmetry. The second one is based on the S 3 permutation family symmetry. The breaking terms, which are twisted FL symmetric, are introduced. Some viable models in each scheme are also presented.

  10. Literary And Psychological Journey Into Lee Brightmans Consciousness

    Directory of Open Access Journals (Sweden)

    Moza Al Hammoudi

    2015-08-01

    Full Text Available The purpose of this research is to analyze the character of Lee Brightman from both literary and psychological perspective. Lee Brightman is a main character in Elizabeth Hayness novel Into the Darkest Corner. Lee has psychopathic traits which fall under the dark triad personalities narcissism Machiavellianism and psychopathy. After Catharine Baily falls in love with him he starts to change his attitude towards her. Lee uses emotional psychological and physical abuse against Catharine. This research helps to uncover the reasons behind Lee Brightmans domestic violence. In addition this research serves as a case study of someone who has psychological problems.

  11. Adsorption Characteristics of Pb(2+) onto Wine Lees-Derived Biochar.

    Science.gov (United States)

    Zhu, Qihong; Wu, Jun; Wang, Lilin; Yang, Gang; Zhang, Xiaohong

    2016-08-01

    Biochar has great advantages in soil amendment and polluted soil remediation. Herein, the pore and adsorption properties of wine lees-derived biochar were explored. Specifically, the adsorption isotherm and kinetics of Pb(2+) onto wine lees-derived biochar were examined. Experimental results revealed that wine lees-derived biochar featured large specific surface area and total pore volume, and high contents of -COOH and -OH on its surface. Adsorption of Pb(2+) onto wine lees-derived biochar proceeded via a multilayer adsorption mechanism, as described by the Freundlich adsorption model. Adsorption kinetics followed the Lagergren pseudo-second-order kinetics model; adsorption equilibrium was achieved within 30-60 min. Furthermore, the effect of solution pH on the adsorption of Pb(2+) was investigated. Within the studied pH range of 3-6, the adsorption capacity increased with increasing pH. Under established optimized conditions, wine lees-derived biochar achieved a Pb(2+) adsorption capacity of 79.12 mg/g.

  12. Optimal Investment Strategy for Asset and Liability Management Problems under the Ho-Lee Interest Rate Model%Ho-Lee利率模型下资产-负债管理的最优投资策略

    Institute of Scientific and Technical Information of China (English)

    常浩; 荣喜民

    2012-01-01

    Under the assumption that the risk-free interest rate dynamics follows the Ho-Lee interest rate model, we investigate the optimal investment strategy for portfolio selection with liability. The financial market is composed of two risky assets: a stock and a zero-coupon bond. The stock price and the bond price influenced by the interest rate volatility are all driven by the extended geometric Brow-nian motion. The liability process follows the extended Brownian motion with drift and is correlated with the interest rate and stock price. Under the utility maximization criterion, the maximum principle is used to obtain the HJB equation for the value function, and we study the optimal investment strategies under power utility and exponential utility, respectively. Finally, we obtain the closed-form solutions for the optimal investment strategies by applying the variable transformation approach.%假设无风险利率是服从Ho-Lee利率模型的随机过程,本文研究负债情形下组合投资的最优投资策略.我们考虑金融市场存在两种风险资产:一种股票和一种零息票债券,其中股票和零息票债券由于受到利率波动的影响而服从扩展的几何布朗运动,而负债服从扩展的带漂移的布朗运动,且和利率与股票价格存在相关性.文章应用最大值原理得到效用最大化下值函数的Hamilton-Jacobi-Bellman (HJB)方程,并研究幂效用和指数效用函数下的最优投资策略.利用变量变换方法得到了两种效用函数下最优投资策略的显示表达式.

  13. Practicing psychology in the art gallery: Vernon Lee's aesthetics of empathy.

    Science.gov (United States)

    Lanzoni, Susan

    2009-01-01

    Late nineteenth-century psychologists and aestheticians were fascinated by the study of psychological and physiological aspects of aesthetic response, and the British intellectual and aesthete Vernon Lee was a major participant in this venture. Working outside the academy, Lee conducted informal experiments with Clementina Anstruther-Thomson, recording changes in respiration, balance, emotion, and body movements in response to aesthetic form. In fashioning her aesthetics of empathy, she mined a wealth of psychological theories of the period including motor theories of mind, physiological theories of emotion, evolutionary models of the usefulness of art, and, most prominently, the empathic projection of feeling and movement into form. Lee distributed questionnaires, contributed to scientific journals, carried out her own introspective studies, and debated aesthetics with leading psychologists. This paper critiques the prevailing view of Lee's aesthetics as a displaced sign of her gender or sexuality, and questions her status as simply an amateur in the field of psychology. Instead, I argue that Lee's empirically based empathy theory of art was a significant contribution to debates on psychological aesthetics at the outset of the twentieth century, offering a synthesis of Lipps's mentalistic Einfühlung and sensation-based imitation theories of aesthetic response.

  14. Bayesian Population Forecasting: Extending the Lee-Carter Method.

    Science.gov (United States)

    Wiśniowski, Arkadiusz; Smith, Peter W F; Bijak, Jakub; Raymer, James; Forster, Jonathan J

    2015-06-01

    In this article, we develop a fully integrated and dynamic Bayesian approach to forecast populations by age and sex. The approach embeds the Lee-Carter type models for forecasting the age patterns, with associated measures of uncertainty, of fertility, mortality, immigration, and emigration within a cohort projection model. The methodology may be adapted to handle different data types and sources of information. To illustrate, we analyze time series data for the United Kingdom and forecast the components of population change to the year 2024. We also compare the results obtained from different forecast models for age-specific fertility, mortality, and migration. In doing so, we demonstrate the flexibility and advantages of adopting the Bayesian approach for population forecasting and highlight areas where this work could be extended.

  15. Perturbative unitarity of Lee-Wick quantum field theory

    Science.gov (United States)

    Anselmi, Damiano; Piva, Marco

    2017-08-01

    We study the perturbative unitarity of the Lee-Wick models, formulated as nonanalytically Wick rotated Euclidean theories. The complex energy plane is divided into disconnected regions and the values of a loop integral in the various regions are related to one another by a nonanalytic procedure. We show that the one-loop diagrams satisfy the expected, unitary cutting equations in each region: only the physical d.o.f. propagate through the cuts. The goal can be achieved by working in suitable subsets of each region and proving that the cutting equations can be analytically continued as a whole. We make explicit calculations in the cases of the bubble and triangle diagrams and address the generality of our approach. We also show that the same higher-derivative models violate unitarity if they are formulated directly in Minkowski spacetime.

  16. Tim Berners-Lee and Kofi Annan during the WSIS

    CERN Multimedia

    Patrice Loïez

    2003-01-01

    During the 2003 World Summit on the Information Society (WSIS) at Geneva Palexpo, Tim Berners-Lee W3C's director (World Wide Web consortium) was introduced to Kofi Annan, Secretary General of the United Nations. Tim Berners-Lee developed the first network and server system that lead to the World Wide Web.

  17. Tim Berners-Lee and Kofi Annan during the WSIS

    CERN Multimedia

    Patrice Loïez

    2003-01-01

    During the 2003 World Summit on the Information Society (WSIS) at Geneva Palexpo, Tim Berners-Lee, W3C's director (World Wide Web consortium) was introduced to Kofi Annan, Secretary General of the United Nations. Tim Berners-Lee developed the first network and server system that lead to the World Wide Web.

  18. Web Inventor Berners-Lee starts a Blog

    CERN Multimedia

    Olson, Parmy

    2005-01-01

    Berners-Lee created what is known today as the World Wide Web. Now, just in time for the Web's 15th anniversary and after taking his proverbial stroll around the global dwelling of cyberspace, Berners-Lee is chatting with the rest of us about what he thinks with a blog

  19. "Identity in Flux": Exploring the Work of Nikki S. Lee

    Science.gov (United States)

    Allison, Amanda

    2009-01-01

    Identity is a vital topic for discussion, exploration, and discovery in the art classroom. The artwork of Nikki S. Lee provides an opportunity for students to begin reformulating their notions about selfhood. The work of Nikki S. Lee is significant because it blends documentary, fashion, and staged and unstaged photography to allow viewers to…

  20. Tim Berners-Lee receives the Millennium Technology Prize

    CERN Multimedia

    2004-01-01

    On 15 April, for his invention of the Web, Tim Berners-Lee was awarded the first ever Millennium Technology Prize by the Finnish Technology Award Foundation, which recognises technological innovations of lasting benefit to society. "Tim Berners-Lee's invention perfectly encapsulates the spirit of the Prize. The Web is encouraging new types of social networks, contributing to transparency and democracy, and opening up new avenues for information management and business development," underlined Pekka Tarjanne, chairman of the jury and former Secretary-General of the International Telecommunication Union (ITU). Tim Berners-Lee is congratulated by Jukka Valtasaari, Finland's Ambassador to the United States. Tim Berners-Lee created the first server, browser and editor, the HTML code, the URL address and the HTTP transmission protocol at CERN in 1990. CERN released the Web into the public domain in 1993. Tim Berners-Lee is currently head of the World Wide Web Consortium, managed by ERCIM (Europe...

  1. Lee-Yang-Fisher zeros for DHL and 2D rational dynamics, II. Global Pluripotential Interpretation

    CERN Document Server

    Bleher, Pavel; Roeder, Roland

    2011-01-01

    In a classical work of the 1950's, Lee and Yang proved that for fixed nonnegative temperature, the zeros of the partition functions of a ferromagnetic Ising model always lie on the unit circle in the complex magnetic field. Zeros of the partition function in the complex temperature were then considered by Fisher, when the magnetic field is set to zero. Limiting distributions of Lee-Yang and of Fisher zeros are physically important as they control phase transitions in the model. One can also consider the zeros of the partition function simultaneously in both complex magnetic field and complex temperature. They form an algebraic curve called the Lee-Yang-Fisher (LYF) zeros. In this paper we study their limiting distribution for the Diamond Hierarchical Lattice (DHL). In this case, it can be described in terms of the dynamics of an explicit rational function $R$ in two variables (the Migdal-Kadanoff renormalization transformation). We prove that the Lee-Yang-Fisher zeros are equidistributed with respect to a dyn...

  2. Super-renormalizable or finite Lee-Wick quantum gravity

    Science.gov (United States)

    Modesto, Leonardo

    2016-08-01

    We propose a class of multidimensional higher derivative theories of gravity without extra real degrees of freedom besides the graviton field. The propagator shows up the usual real graviton pole in k2 = 0 and extra complex conjugates poles that do not contribute to the absorptive part of the physical scattering amplitudes. Indeed, they may consistently be excluded from the asymptotic observable states of the theory making use of the Lee-Wick and Cutkosky, Landshoff, Olive and Polkinghorne prescription for the construction of a unitary S-matrix. Therefore, the spectrum consists of the graviton and short lived elementary unstable particles that we named ;anti-gravitons; because of their repulsive contribution to the gravitational potential at short distance. However, another interpretation of the complex conjugate pairs is proposed based on the Calmet's suggestion, i.e. they could be understood as black hole precursors long established in the classical theory. Since the theory is CPT invariant, the conjugate complex of the micro black hole precursor can be interpreted as a white hole precursor consistently with the 't Hooft complementarity principle. It is proved that the quantum theory is super-renormalizable in even dimension, i.e. only a finite number of divergent diagrams survive, and finite in odd dimension. Furthermore, turning on a local potential of the Riemann tensor we can make the theory finite in any dimension. The singularity-free Newtonian gravitational potential is explicitly computed for a range of higher derivative theories. Finally, we propose a new super-renormalizable or finite Lee-Wick standard model of particle physics.

  3. A light sterile neutrino from Friedberg–Lee symmetry

    Energy Technology Data Exchange (ETDEWEB)

    He, Xiao-Gang [Shanghai Key Laboratory of Particle Physics and Cosmology, Shanghai (China); INPAC and Department of Physics, Shanghai Jiao Tong University, Shanghai (China); Physics Division, National Center for Theoretical Sciences, Department of Physics, National Tsing Hua University, Hsinchu, Taiwan (China); CTS, CASTS and Department of Physics, National Taiwan University, Taipei, Taiwan (China); Liao, Wei, E-mail: liaow@ecust.edu.cn [Institute of Modern Physics, School of Science, East China University of Science and Technology, Shanghai (China)

    2014-01-20

    Light sterile neutrinos of mass about an eV with mixing U{sup -tilde}{sub ls} of a few percent to active neutrinos may solve some anomalies shown in experimental data related to neutrino oscillation. How to have light sterile neutrinos is one of the theoretical problems which have attracted a lot of attentions. In this article we show that such an eV scale light sterile neutrino candidate can be obtained in a seesaw model in which the right-handed neutrinos satisfy a softly-broken Friedberg–Lee (FL) symmetry. In this model a right-handed neutrino is guaranteed by the FL symmetry to be light comparing with other two heavy right-handed neutrinos. It can be of eV scale when the FL symmetry is softly broken and can play the role of eV scale sterile neutrino needed for explaining the anomalies of experimental data. This model predicts that one of the active neutrino is massless. We find that this model prefers inverted hierarchy mass pattern of active neutrinos than normal hierarchy. An interesting consequence of this model is that realizing relatively large |U{sup -tilde}{sub es}| and relatively small |U{sup -tilde}{sub μs}| in this model naturally leads to a relatively small |U{sup -tilde}{sub τs}|. This interesting prediction can be tested in future atmospheric or solar neutrino experiments.

  4. A light sterile neutrino from Friedberg-Lee symmetry

    Science.gov (United States)

    He, Xiao-Gang; Liao, Wei

    2014-01-01

    Light sterile neutrinos of mass about an eV with mixing U of a few percent to active neutrinos may solve some anomalies shown in experimental data related to neutrino oscillation. How to have light sterile neutrinos is one of the theoretical problems which have attracted a lot of attentions. In this article we show that such an eV scale light sterile neutrino candidate can be obtained in a seesaw model in which the right-handed neutrinos satisfy a softly-broken Friedberg-Lee (FL) symmetry. In this model a right-handed neutrino is guaranteed by the FL symmetry to be light comparing with other two heavy right-handed neutrinos. It can be of eV scale when the FL symmetry is softly broken and can play the role of eV scale sterile neutrino needed for explaining the anomalies of experimental data. This model predicts that one of the active neutrino is massless. We find that this model prefers inverted hierarchy mass pattern of active neutrinos than normal hierarchy. An interesting consequence of this model is that realizing relatively large |U| and relatively small |U| in this model naturally leads to a relatively small |U|. This interesting prediction can be tested in future atmospheric or solar neutrino experiments.

  5. A Light Sterile Neutrino from Friedberg-Lee Symmetry

    CERN Document Server

    He, Xiao-Gang

    2013-01-01

    Light sterile neutrinos of mass about an eV with mixing $\\tilde U_{ls}$ of a few percent to active neutrinos may solve some anomalies shown in experimental data related to neutrino oscillation. How to have light sterile neutrinos is one of the theoretical problems which have attracted a lot of attentions. In this article we show that such an eV scale light sterile neutrino candidate can be obtained in a seesaw model in which the right-handed neutrinos satisfy a softly-broken Friedberg-Lee (FL) symmetry. In this model a right-handed neutrino is guaranteed by the FL symmetry to be light comparing with other two heavy right-handed neutrinos. It can be of eV scale when the FL symmetry is softly broken and can play the role of eV scale sterile neutrino needed for explaining the anomalies of experimental data. This model predicts that one of the active neutrino is massless. We find that this model prefers inverted hierarchy mass pattern of active neutrinos than normal hierarchy. An interesting consequence of this m...

  6. The Trail Inventory of Lee Metcalf NWR [Cycle 2

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this report is to create a baseline inventory of all non-motorized trails on Lee Metcalf National Wildlife Refuge. Trails in this inventory are...

  7. Nobel laureate T.D. Lee at CERN

    CERN Multimedia

    2007-01-01

    On 30 August, Professor T.D. Lee, who received the Nobel Prize for Physics in 1957, gave a seminar at CERN on symmetry and asymmetry in electroweak interactions, 50 years after the discovery of the non-conservation of parity. In 1956, Tsung-Dao Lee postulated with Chen Ning Yang that parity is not conserved in weak interactions, and suggested several experiments to demonstrate this. The following year, an experiment led by Chien-Shiung Wu proved this prediction and, soon after, T.D. Lee and Chen Ning Yang were awarded the Nobel Prize for Physics. Still very active at over 80 years of age, T.D. Lee pursues his theory work to this day.

  8. Parcels and Land Ownership, Published in 2011, Lee County Government.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Parcels and Land Ownership dataset as of 2011. The extent of these data is generally Lee County, IA. This metadata was auto-generated through the Ramona GIS...

  9. Lee Metcalf National Wildlife Refuge : Annual Narrative : Calendar Year 1992

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf National Wildlife Refuge outlines Refuge accomplishments during the 1992 calendar year. The report begins with a summary...

  10. Fenhexamid adsorption behavior on soil amended with wine lees.

    Science.gov (United States)

    Pinna, Maria Vittoria; Budroni, Marilena; Farris, Giovanni Antonio; Pusino, Alba

    2008-11-26

    The adsorption of fenhexamid (FEN) [N-(2,3-dichloro-4-hydroxyphenyl)-1-methylcyclohexanecarboxamide] on vineyard soil amended with wine lees (WL) produced by vinery was studied. The adsorption extent depends on WL fraction. The addition of the centrifuged solid lees (SWL) increases the FEN adsorption on soil. Most likely, the organic insoluble fraction formed mainly by dead fermentation yeasts is responsible for the observed increase. The adsorption measured on some deactivated yeasts of wine fermentation shows that Saccharomyces cerevisiae are the most active in FEN retention. On the other hand, the soil amendment with whole WL decreases considerably the fungicide adsorption. This opposite effect may be the result of FEN hydrophobic bonds with the dissolved organic matter of lees that keeps fungicide in solution. This hypothesis is substantiated by the increased FEN solubility in the supernatant of centrifuged wine lees (LWL). The results of soil column mobility confirm that the elution with LWL increases the mobility of FEN in soil.

  11. Lee Metcalf National Wildlife Refuge : Annual Narrative : Calendar Year 1991

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf National Wildlife Refuge outlines Refuge accomplishments during the 1991 calendar year. The report begins with a summary...

  12. Lee Metcalf National Wildlife Refuge 2005 annual habitat work plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual habitat management plan outlines working habitat objectives for wetland habitats based on refuge purposes, professional judgment and experience for Lee...

  13. Lee Metcalf National Wildlife Refuge : Annual Narrative : Calendar Year 1993

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf National Wildlife Refuge outlines Refuge accomplishments during the 1993 calendar year. The report begins with a summary...

  14. Friedberg-Lee Symmetry for Quark Masses and Flavor Mixing

    CERN Document Server

    Ren, Ping

    2008-01-01

    We point out a generic correlation between the Friedberg-Lee symmetry of quark mass operators and the vanishing of quark masses. We make phenomenological explorations on two textures of quark mass matrices with the broken Friedberg-Lee symmetry. We present a new pattern of quark mass matrices in agreement with current experimental data. Both analytical and numerical results of our calculations are discussed in detail.

  15. Lee as Critical Thinker: The Example of the Gettysburg Campaign

    Science.gov (United States)

    2012-05-04

    overconfidence, lack of intelligence , and partial blindness to his opponent, caused General Lee to continue an ill- advised tactically offensive battle...factors, notably poor health, overconfidence, lack of intelligence , and a partial blindness to an improving opponent, caused General Lee to continue an...natural tendency to forget information that does not support our line of thinking. - Egocentric myopia refers to thinking within an overly narrow

  16. A conducting surface in Lee-Wick electrodynamics

    Energy Technology Data Exchange (ETDEWEB)

    Barone, F.A. [IFQ, Universidade Federal de Itajuba (Brazil); Nogueira, A.A. [IFT, Sao Paulo (Brazil)

    2015-07-15

    Lee-Wick electrodynamics in the vicinity of a conducting plate is investigated. The propagator for the gauge field is calculated and the interaction between the plate and a point-like electric charge is computed. The boundary condition imposed on the vector field is taken to be the one that makes, on the plate, the normal component of the dual field strength to the plate vanish. It is shown that the image method is not valid in Lee-Wick electrodynamics. (orig.)

  17. Fixed-point B.G. Lee IDCT without multiplication

    Science.gov (United States)

    Zhu, P. P.; Liu, J. G.; Dai, S. K.

    2007-12-01

    An improved modified approach to compute the inverse discrete cosine transform (IDCT) is proposed based on B. G. Lee algorithm. We replace the multiplication operator in original B. G. Lee algorithm with addition and shift operators and looking-up table to implement the fix-point computation. Due to the absence of the multiplication operator, this modified algorithm will take less time to complete the same computation.

  18. Quantitation and structural determination of glucosylceramides contained in sake lees.

    Science.gov (United States)

    Takahashi, Koshiro; Izumi, Kazuki; Nakahata, Eriko; Hirata, Miyo; Sawada, Kazutaka; Tsuge, Keisuke; Nagao, Koji; Kitagaki, Hiroshi

    2014-01-01

    Sake lees are solid parts filtered from the mash of sake, the traditional rice wine of Japan, which is brewed with Aspergillus oryzae and Saccharomyces cerevisiae. The moisture-holding activity of sake lees has long been recognized in Japan. However, the constituent responsible for this activity has not been elucidated. In this study, we first determined the structure of the glucosylceramides contained in sake lees. The glucosylceramides contained in sake lees were N-2'-hydroxyoctadecanoyl-l-O-β-D-glucopyranosyl-9-methyl-4,8-sphingadienine (d19:2/C18:0h), N-2'-hydroxyoctadecanoyl-l-O-β-D-glucopyranosyl-4,8-sphingadienine (d18:2/C18:0h), N-2'-hydroxyicosanoyl-l-O-β-D-glucopyranosyl-4,8-sphingadienine (d18:2/C20:0h) and N-2'-hydroxyicosanoyl-l-O-β-D-glucopyranosyl-4,8-sphingadienine (d18:2/C22:0h), which corresponded to those of A. oryzae and rice. The glucosylceramide produced by A. oryzae constituted the most abundant species (43% of the total glucosylceramide) in the sake lees. These results will be of value in the utilization of sake lees for cosmetics and functional foods.

  19. [Montana MOYOCO Invasive Species Strike Team Final Report 2011] Lee Metcalf National Wildlife Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  20. [Montana MOYOCO Invasive Species Strike Team Final Report 2012] Lee Metcalf National Wildlife Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  1. [Montana MOYOCO Invasive Species Strike Team Final Report 2014] Lee Metcalf National Wildlife Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO MT Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  2. [Montana MOYOCO Invasive Species Strike Team Final Report 2013] Lee Metcalf National Wildlife Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  3. [Montana MOYOCO Invasive Species Strike Team Final Report 2016] Lee Metcalf National Wildlife Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  4. [Montana MOYOCO Invasive Species Strike Team Final Report 2015] Lee Metcalf National Wildlife Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  5. Fragmented structures of lee waves over combined obstacles

    Science.gov (United States)

    Makarenko, Nikolay; Maltseva, Janna

    2015-04-01

    The problem on finite amplitude internal waves arising in a steady non-homogeneous flow over an uneven bottom is considered. Semi-analytical model deals with asymptotic solutions of the Euler equations of uniformly stratified fluid. Approximate solutions are constructed by the perturbation procedure combined with the Fourier method of modal expansion. Preliminary simulations used either of the first-order linear solution and the second-order non-linear solution (see [1,2]), and these numerical calculations found the fragmentation effect which occurs for near-field wave patterns forced by multi-bumped topography of finite extension. In this paper, we explain analytically the existence of sharp fronts which separate the flow domains having different wave scales. The results are illustrated numerically via modeling of wave structures generated by real bottom topography. References [1] N. Makarenko, J. Maltseva, Interference of lee waves over mountain ranges, NHESS, 2011, 11, 27-32. [2] N. Makarenko, J. Maltseva, Steady waves in a stratified flow over a combined obstacle, JAMTP, 2014, 55(2), 311-317.

  6. Moored and Towed Measurements of Lee Waves at West Mariana Ridge

    Science.gov (United States)

    2015-09-30

    Moored Profiler and towed LADCP/CTD measurements of flow encountering rough topography in the Samoan Passage. The flow of dense water across a sill in...interested in the general problems of internal waves and ocean mixing. Breaking of internal waves is the main cause for ocean mixing away from surface ...climate models . A special type of internal waves are lee waves, generated as low frequency currents interact with the bottom topography. The research

  7. Awards: New Year Knighthood for Tim Berners-Lee

    CERN Multimedia

    2004-01-01

    Tim Berners-Lee has been awarded his country's highest honour - a knighthood - in the UK's New Year Honours list for his work while at CERN on the World Wide Web. In the same honours list, Roger Cashmore has been made a Companion of the Order of St Michael and St George (CMG) "for his services to international co-operation in particle physics". Cashmore was CERN's Director for Collider Programmes from 1999-2003, and is now Principal of Brasenose College, Oxford. Tim Berners-Lee stands in front of the first web server at Palexpo during the World Summit on the Information Society.

  8. Generic Friedberg-Lee symmetry of Dirac neutrinos

    Science.gov (United States)

    Luo, Shu; Xing, Zhi-Zhong; Li, Xin

    2008-12-01

    We write out the generic Dirac neutrino mass operator which possesses the Friedberg-Lee symmetry and find that its corresponding neutrino mass matrix is asymmetric. Following a simple way to break the Friedberg-Lee symmetry, we calculate the neutrino mass eigenvalues and show that the resultant neutrino mixing pattern is nearly tri-bimaximal. Imposing the Hermitian condition on the neutrino mass matrix, we also show that the simplified ansatz is consistent with current experimental data and favors the normal neutrino mass hierarchy.

  9. Andrew Lees, a visionary mentored by a madman

    Directory of Open Access Journals (Sweden)

    Francisco Cardoso

    Full Text Available ABSTRACT Andrew Lees, Professor of Neurology at the National Hospital Queen Square (London, UK, has been recognized as the world’s most highly-cited researcher over the 200-year history of Parkinson’s Disease. Although he remains actively involved in the investigation of movement disorders, Prof. Lees embarked on a literary career that started in 2011 with the publication of a social history of his native Liverpool. His last work is Mentored by a Madman: The William Burroughs Experiment, which is reviewed here.

  10. Dan Gilmor Column [Berners-Lee and the WWW

    CERN Multimedia

    Gillmore, D

    2002-01-01

    In the keynote speech at the 11th Annual World Wide Web Conference, Tim Berner's Lee said that in the early days of the web, people were worrying about the same thing as today - one company dominating the market and controlling standards (2 pages).

  11. Must Historians Regress? An Answer to Lee Benson.

    Science.gov (United States)

    Kousser, J. Morgan

    1986-01-01

    Considers the impact of empirical social science methodology and data analysis techniques on the process of historical analysis and its product, generalizations about the past. Uses political preference and voting information as a vehicle to illustrate the differences in historical conclusions reached by Lee Benson and J. Morgan Kousser. (JDH)

  12. Robert E. Lee, George Peabody, and Sectional Reunion.

    Science.gov (United States)

    Parker, Franklin

    1994-01-01

    Discusses an 1869 meeting between George Peabody, educational philanthropist, and Robert E. Lee. The meeting focused public attention on the Peabody Education Fund and the South's educational plight. Significant measures of educational efforts in the South are directly attributable to several informal meetings centered around Peabody and Lee…

  13. George C.Lee Honored by White House

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ On November 16,2007,George C.Lee,the editor-in-chief of our journal-Earthquake Engineering and Engineering Vibration (EEEV),was among 11 people to receive a 2006 Presidential Award for Excellence in Science,Mathematics and Engineering Mentoring (PAESMEM) from President George W.Bush in a ceremony at the White House.

  14. Lee de Forest King of Radio, Television, and Film

    CERN Document Server

    Adams, Mike

    2012-01-01

    Lee de Forest, Yale doctorate and Oscar winner, gave voice to the radio and the motion picture. Yet by the 1930s, after the radio and the Talkies were regular features of American life, Lee de Forest had seemingly lost everything. Why? Why didn’t he receive the recognition and acclaim he sought his entire life until years later in 1959, when he was awarded an Oscar? A lifelong innovator, Lee de Forest invented the three-element vacuum tube which he developed between 1906 and 1916 as a detector, amplifier, and oscillator of radio waves. As early as 1907, he was broadcasting music programming. In 1918, he began to develop a system for recording and playing back sound by using light patterns on motion picture film. In order to promote and demonstrate his process he made hundreds of short sound films, found theatres for their showing, and issued publicity to gain audiences for his invention. While he received many patents for this technology, he was ignored by the film industry. Lee de Forest, King of Radio, Te...

  15. Virginia Lee Burton's "Little House" in Popular Consciousness

    DEFF Research Database (Denmark)

    Goddard, Joe

    2011-01-01

    This paper considers the significance of Victoria Lee Burton’s authorship, specifically the Little House for lifestyle preferences and the development of environmental consciousness in the postwar period. The paper argues that Burton deliberately designed her work to evoke country-friendly sensib...

  16. Robert E. Lee's Demand for the Surrender of John Brown

    Science.gov (United States)

    Rulli, Daniel F.

    2004-01-01

    The featured document that is the main topic of this article, Robert E. Lee's Demand for the Surrender of John Brown and his Party [at Harpers Ferry], October 18, 1859, is from the Records of the Adjutant General's Office, 1780s-1917; Record Group 94, and is in the holdings of the National Archives. As a part of "Teaching with…

  17. Tim Berners-Lee, World Wide Web inventor

    CERN Multimedia

    1998-01-01

    The "Internet, Web, What's next?" conference on 26 June 1998 at CERN: Tim Berners-Lee, inventor of the World Wide Web and Director of the W3C, explains how the Web came to be and gave his views on the future.

  18. Expanding Hipolito-Delgado and Lee's Empowerment Theory: A Response

    Science.gov (United States)

    Zalaquett, Carlos; D'Andrea, Michael

    2007-01-01

    Hipolito-Delgado and Lee's article entitled "Empowerment Theory for the Professional School Counselor: A Manifesto for What Really Matters" represents an important contribution to the school counseling literature for two reasons: (1) It helps to expand a growing knowledge base related to the work school counselors can do to foster the…

  19. Catalogue of Radionuclide Low-Energy Electron Spectra (LEES)

    CERN Document Server

    Vylov, T D; Kovalik, A; Yakushev, E A; Mahmoud, M; Novgorodov, A F; Lebedev, N A; Filossofov, D V; Briançon, C; Walen, R J; Coursol, N F; Minkova, A; Petev, P; Dragoun, O; Brabec, V; Inoyatov, A

    2003-01-01

    More than 100 of apparatus low-energy electron spectra from radionuclides with Z=24-95 are collected in the presented LEES Catalogue. These spectra have been recorded in systematical investigations of Auger and internal conversion electrons with the ESA-50 electrostatic spectrometer during past 20 years.

  20. The Significance of Grit: A Conversation with Angela Lee Duckworth

    Science.gov (United States)

    Perkins-Gough, Deborah

    2013-01-01

    For the last 11 years, Angela Lee Duckworth of the University of Pennsylvania has been conducting ground breaking studies on "grit"--the quality that enables individuals to work hard and stick to their long-term passions and goals. In this interview with "Educational Leadership," Duckworth describes what her research has shown…

  1. Berners-Lee wins inaugural Millennium Technology prize

    CERN Multimedia

    2004-01-01

    "World Wide Web inventor Tim Berners-Lee today was named recipient of the first-ever Millennium Technology Prize. The honor, which is accompanied by one million euros, is bestowed by the Finnish Technology Award Foundation as an international acknowledgement of outstanding technological innovation aimed at promoting quality of life and sustainable economic and societal development" (1 page)

  2. Numerical Simulation of a Lee Wave Case over Three-Dimensional Mountainous Terrain under Strong Wind Condition

    Directory of Open Access Journals (Sweden)

    Lei Li

    2013-01-01

    Full Text Available This study of a lee wave event over three-dimensional (3D mountainous terrain in Lantau Island, Hong Kong, using a simulation combining mesoscale model and computational fluid dynamics (CFD model has shown that (1 3D steep mountainous terrain can trigger small scale lee waves under strong wind condition, and the horizontal extent of the wave structure is in a dimension of few kilometers and corresponds to the dimension of the horizontal cross-section of the mountain; (2 the life cycle of the lee wave is short, and the wave structures will continuously form roughly in the same location, then gradually move downstream, and dissipate over time; (3 the lee wave triggered by the mountainous terrain in this case can be categorized into “nonsymmetric vortex shedding” or “turbulent wake,” as defined before based on water tank experiments; (4 the magnitude of the wave is related to strength of wind shear. This study also shows that a simulation combining mesoscale model and CFD can capture complex wave structure in the boundary layer over realistic 3D steep terrain, and have a potential value for operational jobs on air traffic warning, wind energy utilization, and atmospheric environmental assessment.

  3. Interference of lee waves over mountain ranges

    Directory of Open Access Journals (Sweden)

    N. I. Makarenko

    2011-01-01

    Full Text Available Internal waves in the atmosphere and ocean are generated frequently from the interaction of mean flow with bottom obstacles such as mountains and submarine ridges. Analysis of these environmental phenomena involves theoretical models of non-homogeneous fluid affected by the gravity. In this paper, a semi-analytical model of stratified flow over the mountain range is considered under the assumption of small amplitude of the topography. Attention is focused on stationary wave patterns forced above the rough terrain. Adapted to account for such terrain, model equations involves exact topographic condition settled on the uneven ground surface. Wave solutions corresponding to sinusoidal topography with a finite number of peaks are calculated and examined.

  4. Lee Miller à travers la Roumanie, l’appareil photo à la main (1946

    Directory of Open Access Journals (Sweden)

    Adrian-Silvan Ionescu

    2012-01-01

    Full Text Available A former model and fashion photographer turned war photographer, Lee Miller visited Romania twice, in 1938 and 1946 respectively. After her second visit she published her impressions and pictures, under the title of Roumania, in Vogue magazine. Besides the published material there are her manuscripts from The Lee Miller Achives at Farley Farm House, East Sussex, England, on which this paper is based. She crossed the border coming from Hungary in early February 1946. Heading for Sibiu her car, a Chevrolet Sedan, slipping on the ice-covered road, stopped on a snowbank far off in the ditch. While looking for help in the nearby village she and her companions left the car unguarded to discover it plundered of everything, wheels included.On a Sunday afternoon she had the privilege of being received by King Mihai I and Queen Mother Elena with whom she talked exstensively. She also took magnificent pictures with the Royal Family in the imposing Peleş Castle. At Sinaia, „the summer capital of Roumania” she had also the opportunity to portray Dinu Brătianu and Iuliu Maniu, the two elderly statesmen. Maniu was surrounded by friends and party members, among whom was young Corneliu Coposu, his private secretary.Moving to Bucharest, she met old friends such as Harri Brauner and his wife, Lena Constante, with whom she wandered through the country eight years ago. Lena and Elena Pătrășcanu, wife of Lucrețiu Pătrășcanu, Minister of Justice, have started a successful marionette theatre where Lee took nice pictures. Other were taken on the streets, with peasants, street vendors and their customers. Harri took her to a bistro where they met Maria Lătărețu, the celebrating folk singer whom Brauner recorded many times. They enjoyed her songs. Suffering from fibrositis, Lee Miller undertook a peculiar treatment in a gypsy village where the inhabitants were dancing bears trainers. She was massaged by a bear weighing about 300 pounds while Brauner took

  5. Nooruslikud juubilarid: fotokelder Lee 20 ja fotomuuseum 30 / Mall Parmas, Betty Ester-Väljaots

    Index Scriptorium Estoniae

    Parmas, Mall

    2013-01-01

    Peeter Toominga algatusel 1992. aastal asutatud Lee fotokeldrist. Loetletud fotomuuseumis oma töid eksponeerinud fotograafid. Ülevaatenäitus "Lee fotokelder 20" 17. jaanuarist 20. märtsini, koostaja Betty Ester-Väljaots

  6. Economist Innovation Award for Tim Berners-Lee

    CERN Multimedia

    2003-01-01

    In September, Tim Berners-Lee, who invented the World Wide Web at CERN and is now Director of the W3C World Wide Web Consortium, received the 2nd Economist Annual Innovation Award in Computing. With the award The Economist, a British weekly newspaper, recognises individuals responsible for breakthroughs in Bioscience, Computing, Energy and the Environment, and Telecommunications that have a profound impact on industry. A fifth award is given in a special "No Boundaries" category, observing innovation that transcends industries. Candidates for the awards are proposed by The Economist readers and writers, and by a group of judges. Tim Berners-Lee received the Computing award for his global hypertext project, to be known as the World Wide Web, which "forever altered the way information is shared" and is a huge contribution to the efficiency of the scientific community. Based on a programme for storing information using random associations called "Enquire", it...

  7. Lee Miller, une battante sur tous les fronts

    Directory of Open Access Journals (Sweden)

    Anaïs Boutot

    2009-06-01

    Full Text Available L’art photographique de Lee Miller, à l’image de sa vie, revêt de multiples facettes. Après avoir été devant l’objectif en tant que mannequin puis égérie du Paris surréaliste, elle passe derrière l’objectif pour devenir photographe de mode, reporter de guerre ou encore portraitiste. L’exposition L’Art de Lee Miller, présentée au Jeu de Paume du 21 octobre 2008 au 4 janvier 2009 et accompagnée d’un ouvrage paru en français chez Hazan mettait en avant une quête d’identité et d’indépendance qui ...

  8. Tim Berners-Lee, World Wide Web inventor

    CERN Multimedia

    1994-01-01

    Former physicist, Tim Berners-Lee invented the World Wide Web as an essential tool for high energy physics at CERN from 1989 to 1994. Together with a small team he conceived HTML, http, URLs, and put up the first server and the first 'what you see is what you get' browser and html editor. Tim is now Director of the Web Consortium W3C, the International Web standards body based at INRIA, MIT and Keio University.

  9. Probing Features of the Lee-Wick Quantum Electrodynamics

    Directory of Open Access Journals (Sweden)

    R. Turcati

    2014-01-01

    Full Text Available We discuss some aspects concerning the electromagnetic sector of the abelian Lee-Wick (LW quantum electrodynamics (QED. Using the Dirac’s theory of constrained systems, the higher-order canonical quantization of the LW electromagnetism is performed. A quantum bound on the LW heavy mass is also estimated using the best known measurement of the anomalous magnetic moment of the electron. Finally, it is shown that magnetic monopoles can coexist peacefully in the LW scenario.

  10. Triniti daripada Perspektif Taoisme: Analisis Pemikiran Jung Young Lee

    Directory of Open Access Journals (Sweden)

    ZURAIZA HUSIN

    2016-06-01

    Full Text Available Jung Young Lee is a Korean-born theologian who employs creatively the doctrine of the Trinity from an Asian worldview. This article aims to analyze Lee’s approaches of the Trinity with the Yin-Yang symbolism. The main reference is based on the book written by him entitled ‘The Trinity in Asian Perspective (1996’. Lee has turned his attention to the topic of Trinity through the lens of the culture and thought patterns of his own milieu. One of the leading point in presenting Yin-Yang principle as Trinitarian thinking, Lee examines the interpretation of the term “in” in the Bible, "Believe me that I am in the Father and the Father is in me" (John 14:11. The statement leads to the point that Yin and Yang cannot exist without each other because relationality is given priority than individuality. The idea is based on the terminology of ‘both/and’. So, ‘and’ indicates a Trinitarian statement, there is interdependence and unification. With reference to Trinity, the Father and the Son are One because of ‘and’. In addition, the same concept implements to the Holy Spirit. Lee views ‘and’ is not only a linking principle in both-and thinking but also the principle that is ‘between’ two. When ‘two’ exists, the third also exist between them. Based on the idea of ‘middle’, represents the connecting element between two, which contributes for the existence of the Third. Accordingly, the Spirit is the third element in the Trinity relationship.

  11. INFLUENCE OF THE SCORER PARAMETER PROFILE ON THE WAVELENGTH OF TRAPPED LEE WAVES

    Institute of Scientific and Technical Information of China (English)

    ZANG Zeng-liang; ZHANG Ming; HUANG Hong

    2007-01-01

    A three-layer theoretical model was established, in which the atmosphere is divided into three layers based on the Scorer parameter l2 , which is large in the middle layer and small in the other two layers. The wave number formula of lee waves was deduced with this theoretical model, and a typical example for the lee wave was calculated. Thus, the influence of changes in the thickness of every layer and values of the Scorer parameter in every layer was examined. The results show that the wavelength decreases with an increase in the thickness of the lower and the middle layers and is more sensitive to the changes in the middle layer. Therefore, if the changes in these two layers are different, the changes in the middle layer will dominate the changes in the wavelength. The results also show that the wavelength decreases with the increase in the value of l2 in every layer, among which the sensitivity to the l2 in the upper layer is the most striking. The calculation results reasonably can explain the influence of diurnal changes on the wavelength. The example was simulated using Advanced Regional Prediction System model, and the sensitivity experiments were performed to confirm the effects of the Scorer parameter profiles on the wavelengths. The simulated results are consistent with the calculated results.

  12. Unique Identification of Lee-Wick Gauge Bosons at Linear Colliders

    Energy Technology Data Exchange (ETDEWEB)

    Rizzo, Thomas G.

    2007-12-14

    Grinstein, O'Connell and Wise have recently presented an extension of the Standard Model (SM), based on the ideas of Lee and Wick (LW), which demonstrates an interesting way to remove the quadratically divergent contributions to the Higgs mass induced by radiative corrections. This model predicts the existence of negative-norm copies of the usual SM fields at the TeV scale with ghost-like propagators and negative decay widths, but with otherwise SM-like couplings. In earlier work, it was demonstrated that the LW states in the gauge boson sector of these models, though easy to observe, cannot be uniquely identified as such at the LHC. In this paper, we address the issue of whether or not this problem can be resolved at an e{sup +}e{sup -} collider with a suitable center of mass energy range. We find that measurements of the cross section and the left-right polarization asymmetry associated with Bhabha scattering can lead to a unique identification of the neutral electroweak gauge bosons of the Lee-Wick type.

  13. Unique Identification of Lee-Wick Gauge Bosons at Linear Colliders

    CERN Document Server

    Rizzo, Thomas G

    2008-01-01

    Grinstein, O'Connell and Wise have recently presented an extension of the Standard Model (SM), based on the ideas of Lee and Wick (LW), which demonstrates an interesting way to remove the quadratically divergent contributions to the Higgs mass induced by radiative corrections. This model predicts the existence of negative-norm copies of the usual SM fields at the TeV scale with ghost-like propagators and negative decay widths, but with otherwise SM-like couplings. In earlier work, it was demonstrated that the LW states in the gauge boson sector of these models, though easy to observe, cannot be uniquely identified as such at the LHC. In this paper, we address the issue of whether or not this problem can be resolved at an $e^+e^-$ collider with a suitable center of mass energy range. We find that measurements of the cross section and the left-right polarization asymmetry associated with Bhabha scattering can lead to a unique identification of the neutral electroweak gauge bosons of the Lee-Wick type.

  14. Unitarity and Lee-Wick prescription at one loop level in Myers-Pospelov electrodynamics: the $e^++e^-$ annihilation

    CERN Document Server

    Reyes, Carlos M

    2016-01-01

    We study perturbative unitarity in a Lorentz symmetry violating QED model with higher-order derivative operators in the light of the results of Lee and Wick to preserve unitarity in indefinite metric theories. Specifically, we consider the fermionic sector of the Myers-Pospelov model, which includes dimension five operators, coupled to standard photons. We canonically quantize the model and show that its Hamiltonian is stable, emphasizing the exact stage at which the indefinite metric appears and decomposes into a positive-metric sector and negative-metric sector. Finally, we verify the optical theorem at the one-loop level in the annihilation channel of the forward scattering process $e^+(p_2, r) + e^-(p_1,s)$ by applying the Lee-Wick prescription in which the states associated with the negative metric are left out from the asymptotic Hilbert space.

  15. A numerical analysis of a deep Mediterranean lee cyclone: sensitivity to mesoscale potential vorticity anomalies

    Science.gov (United States)

    Horvath, K.; Ivančan-Picek, B.

    2009-03-01

    A 12-15 November 2004 cyclone on the lee side of the Atlas Mountains and the related occurrence of severe bora along the eastern Adriatic coast are numerically analyzed using the MM5 mesoscale model. Motivated by the fact that sub-synoptic scales are more sensitive to initialization errors and dominate forecast error growth, this study is designed in order to assess the sensitivity of the mesoscale forecast to the intensity of mesoscale potential vorticity (PV) anomalies. Five sensitivity simulations are performed after subtracting the selected anomalies from the initial conditions, allowing for the analysis of the cyclone intensity and track, and additionally, the associated severe bora in the Adriatic. The results of the ensemble show that the cyclone is highly sensitive to the exact details of the upper-level dynamic forcing. The spread of cyclone intensities is the greatest in the mature phase of the cyclone lifecycle, due to different cyclone advection speeds towards the Mediterranean. However, the cyclone tracks diffluence appears to be the greatest during the cyclone movement out of the Atlas lee, prior to the mature stage of cyclone development, most likely due to the predominant upper-level steering control and its influence on the thermal anomaly creation in the mountain lee. Furthermore, it is quantitatively shown that the southern Adriatic bora is more sensitive to cyclone presence in the Mediterranean then bora in the northern Adriatic, due to unequal influence of the cyclone on the cross-mountain pressure gradient formation. The orographically induced pressure perturbation is strongly correlated with bora in the northern and to a lesser extent in the southern Adriatic, implying the existence of additional controlling mechanisms to bora in the southern part of the basin. In addition, it is shown that the bora intensity in the southern Adriatic is highly sensitive to the precise sub-synoptic pressure distribution in the cyclone itself, indicating a

  16. Stable Yang-Lee zeros in truncated fugacity series from net-baryon number multiplicity distribution

    CERN Document Server

    Morita, Kenji

    2015-01-01

    We investigate Yang-Lee zeros of grand partition functions as truncated fugacity polynomials of which coefficients are given by the canonical partition functions $Z(T,V,N)$ up to $N \\leq N_{\\text{max}}$. Such a partition function can be inevitably obtained from the net-baryon number multiplicity distribution in relativistic heavy ion collisions, where the number of the event beyond $N_{\\text{max}}$ has insufficient statistics, as well as canonical approaches in lattice QCD. We use a chiral random matrix model as a solvable model for chiral phase transition in QCD and show that the closest edge of the distribution to real chemical potential axis is stable against cutting the tail of the multiplicity distribution. The similar behavior is also found in lattice QCD at finite temperature for Roberge-Weiss transition. In contrast, such a stability is found to be absent in the Skellam distribution which does not have phase transition. We compare the number of $N_{\\text{max}}$ to obtain the stable Yang-Lee zeros with...

  17. Generic Friedberg-Lee Symmetry of Dirac Neutrinos

    CERN Document Server

    Luo, Shu; Li, Xin

    2008-01-01

    We write out the generic Dirac neutrino mass operator which possesses the Friedberg-Lee (FL) symmetry and find that its corresponding neutrino mass matrix is asymmetric. Following a simple way to break the FL symmetry, we calculate the neutrino mass eigenvalues and show that the resultant neutrino mixing pattern is nearly tri-bimaximal. Imposing the Hermitian condition on the neutrino mass matrix, we also show that the simplified ansatz is consistent with current experimental data and favors the normal neutrino mass hierarchy.

  18. A transient-chaotic autoassociative network (TCAN) based on Lee oscillators.

    Science.gov (United States)

    Lee, R T

    2004-09-01

    In the past few decades, neural networks have been extensively adopted in various applications ranging from simple synaptic memory coding to sophisticated pattern recognition problems such as scene analysis. Moreover, current studies on neuroscience and physiology have reported that in a typical scene segmentation problem our major senses of perception (e.g., vision, olfaction, etc.) are highly involved in temporal (or what we call "transient") nonlinear neural dynamics and oscillations. This paper is an extension of the author's previous work on the dynamic neural model (EGDLM) of memory processing and on composite neural oscillators for scene segmentation. Moreover, it is inspired by the work of Aihara et al. and Wang on chaotic neural oscillators in pattern association. In this paper, the author proposes a new transient chaotic neural oscillator, namely the "Lee oscillator," to provide temporal neural coding and an information processing scheme. To illustrate its capability for memory association, a chaotic autoassociative network, namely the Transient-Chaotic Auto-associative Network (TCAN) was constructed based on the Lee oscillator. Different from classical autoassociators such as the celebrated Hopfield network, which provides a "time-independent" pattern association, the TCAN provides a remarkable progressive memory association scheme [what we call "progressive memory recalling" (PMR)] during the transient chaotic memory association. This is exactly consistent with the latest research in psychiatry and perception psychology on dynamic memory recalling schemes.

  19. The Lee-Friedrichs Model: Continuous Limit and Decoherence

    Science.gov (United States)

    Laura, Roberto; Castagnino, Mario

    2007-09-01

    We analyze the thermodynamic limit of the Hamiltonian, states and observables, of a system containing an oscillator interacting with a thermal bath We use the results to a compare environment and self induced decoherence.

  20. T.D Lee and Lisa Randall visit ATLAS

    CERN Multimedia

    Pauline Gagnon

    Professor Tsung-Dao Lee, who received the Nobel Prize for Physics in 1957 for postulating that parity is not conserved in weak interactions, visited the ATLAS detector this month. He is seen here in the company of Peter Jenni, spokesperson for ATLAS. T.D. Lee is still very active at over 80, pursuing his theory work to this day. Professor Lisa Randall from Harvard University, the well-known theorist behind the Randall-Sundrum theory for extra dimensions, was also part of the group visiting the ATLAS detector. She is seen here with Fabiola Gianotti, deputy spokesperson for ATLAS. Lisa Randall's two initial papers have been quoted both more than 2500 times, making her the most cited theoretical physicist in the world in the last five years as of last autumn - a total of about 10,000 citations! One wonders here if Peter is pointing to a CP-violating graviton spotted in the ATLAS cavern... From left to right: Fabiola Gianotti, Gustaaf Brooijmans, convener of the ATLAS Exotics physics gro...

  1. Neutrino sector with Majorana mass terms and Friedberg-Lee symmetry

    Science.gov (United States)

    Jarlskog, C.

    2008-04-01

    We examine a recently proposed symmetry/condition by Friedberg and Lee in a framework where three right-handed neutrinos are added to the spectrum of the three-family minimal standard model. It is found that the right-handed neutrinos are very special, with respect to this symmetry. In the symmetry limit the neutrinos are massless, which could possibly be a hint about why they are light. Imposed as a condition and not as a full symmetry, we find that one of the three right-handed neutrinos simply decouples (has only gravitational interactions) and one of the interacting neutrinos is massless. The possible relation of the model to the seesaw mechanism is briefly discussed.

  2. Neutrino Sector with Majorana Mass Terms and Friedberg-Lee Symmetry

    CERN Document Server

    Jarlskog, C

    2007-01-01

    We examine a recently proposed symmetry/condition by Friedberg and Lee in the framework where three right-handed neutrinos are added to the spectrum of the three-family Minimal Standard Model. It is found that the right-handed neutrinos are very special, with respect to this symmetry. In the symmetry limit the neutrinos are massless and that may be a hint about why they are light. Imposed as a condition and not as a full symmetry, we find that one of the three right-handed neutrinos simply decouples (has only gravitational interactions) and that there is a massless interacting neutrino. The possible relation of the model to the see-saw mechanism is briefly discussed.

  3. Modified Friedberg-Lee symmetry for neutrino mixing

    Science.gov (United States)

    Zhao, Zhen-hua

    2015-12-01

    In this paper, we put forward a special neutrino mass matrix which is invariant under a modified Friedberg-Lee (FL) transformation νe→νe-2 ξ and νμ ,τ→νμ ,τ+ξ with ξ being a space-time independent element of the Grassmann algebra. Compared to the original FL symmetry (with the transformation νe ,μ ,τ→νe ,μ ,τ+ξ ) which results in the TM2 neutrino mixing, the modified FL symmetry will lead us to the TM1 mixing which has a better agreement with the experimental results. While the original FL symmetry has to be broken in order to produce a realistic neutrino mass spectrum, the modified FL symmetry is allowed to remain intact and give us a vanishing m1. A combination of the FL symmetry with the μ -τ reflection symmetry is also discussed.

  4. Applicability of the Friedberg-Lee-Zhao Method

    Institute of Scientific and Technical Information of China (English)

    ZHAO Gong-Bo; DING Yi-Bing; LI Xue-Qian; QIAN Ke; WANG Guo-Li; Zhaorigetu

    2002-01-01

    Friedberg, Lee and Zhao (FLZ) proposed a method for effectively evaluating the eigenenergies and eigen wavefunctions of quantum systems. In this work, we study several special cases to investigate applicability of the method.Concretely, we calculate the ground-state eigenenergy of the Hellmann potential as well as the Cornell potential, and also evaluate the energies of the systems where linear term is added to the Coulomb as a perturbation. The results obtained in this method have a surprising agreement with the traditional method or the numerical results. Since the results in this method have obvious analyticity compared to that in other methods, and because of the simplicity for calculations this method can be applied to solving the Schrodinger equation and provides us a better understanding of the physical essence of the concerned systems. But meanwhile applications of the FLZ method are restricted at present, especially for certain potential forms, but due to its obvious advantages, it should be further developed.

  5. Applicability of the Friedberg-Lee-Zhao method

    CERN Document Server

    Zhao Gong Bo; Li Xue Qian; Wang Guo Li; Zhao, Gong-Bo; Ding, Yi-Bing; Li, Xue-Qian; Wang, Guo-Li

    2002-01-01

    Friedberg, Lee and Zhao proposed a method for effectively evaluating the eigenenergies and eigen wavefunctions of quantum systems. In this work, we study several special cases to investigate applicability of the method. Concretely, we calculate the ground-state eigenenergy of the Hellmann potential as well as the Cornell potential, and also evaluate the energies of the systems where linear term is added to the Coulomb and harmonic oscillator potentials as a perturbation. The results obtained in this method have a surprising agreement with the traditional method or the numerical results. Since the results in this method have obvious analyticity compared to that in other methods, and because of the simplicity for calculations this method can be applied to solving the Schr\\"{o}dinger equation and provides us better understanding of the physical essence of the concerned systems. But meanwhile applications of the FLZ method are restricted at present, especially for certain potential forms, but due to its obvious a...

  6. The Yuan-Tseh Lee Array for Microwave Background Anisotropy

    CERN Document Server

    Ho, Paul T P; Chang, Chia-Hao; Chang, Shu-Hao; Chang, Su-Wei; Chen, Chung-Cheng; Chen, Ke-Jung; Chen, Ming-Tang; Han, Chih-Chiang; Ho, West M; Huang, Yau-De; Hwang, Yuh-Jing; Ibanez-Romano, Fabiola; Jiang, Homin; Koch, Patrick M; Kubo, Derek Y; Li, Chao-Te; Lim, Jeremy; Lin, Kai-Yang; Liu, Guo-Chin; Lo, Kwok-Yung; Ma, Cheng-Jiun; Martin, Robert N; Martin-Cocher, Pierre; Molnar, Sandor M; Ng, Kin-Wang; Nishioka, Hiroaki; O'Connell, Kevin E; Oshiro, Peter; Patt, Ferdinand; Raffin, Philippe; Umetsu, Keiichi; Wei, Tashun; Wu, Jiun-Huei Proty; Chiueh, Tzi-Dar; Chiueh, Tzihong; Chu, Tah-Hsiung; Huang, Chih-Wei Locutus; Hwang, W Y Pauchy; Liao, Yu-Wei; Lien, Chun-Hsien; Wang, Fu-Cheng; Wang, Huei; Wei, Ray-Ming; Yang, Chia-Hsiang; Kesteven, Michael; Kingsley, Jeff; Sinclair, Malcolm M; Wilson, Warwick; Birkinshaw, Mark; Liang, Haida; Lancaster, Katy; Park, Chan-Gyung; Pen, Ue-Li; Peterson, Jeffrey B

    2008-01-01

    The Yuan-Tseh Lee Array for Microwave Background Anisotropy (AMiBA) is the first interferometer dedicated to studying the cosmic microwave background (CMB) radiation at 3mm wavelength. The choice of 3mm is to minimize the contributions from foreground synchrotron radiation and Galactic dust emission. The initial configuration of seven 0.6m telescopes mounted on a 6-m hexapod platform, was dedicated in October 2006 on Mauna Loa, Hawaii. Scientific operations began with the detection of a number of clusters of galaxies via the thermal Sunyaev-Zel'dovich effect. We compare our data with Subaru weak lensing data in order to study the structure of dark matter. We also compare our data with X-ray data in order to derive the Hubble constant.

  7. Perturbations in Symmetric Lee-Wick Bouncing Universe

    CERN Document Server

    Cho, Inyong

    2012-01-01

    We investigate the tensor and the scalar perturbations in the symmetric bouncing universe driven by one ordinary field and its Lee-Wick partner field which is a ghost. We obtain the even- and the odd-mode functions of the tensor perturbation in the matter-dominated regime. The tensor perturbation grows in time during the contracting phase of the Universe, and decays during the expanding phase. The power spectrum for the tensor perturbation is evaluated and the spectral index is given by $n_{\\rm T} =6$. We add the analysis on the scalar perturbation by inspecting the even- and the odd-mode functions in the matter-dominated regime, which was studied numerically in our previous work. We conclude that the comoving curvature by the scalar perturbation is constant in the super-horizon scale and starts to decay in the far sub-horizon scale while the Universe expands.

  8. Beyond Lees Ferry: Assessing the Long-term Hydrologic Variability of the Lower Colorado River Basin

    Science.gov (United States)

    Wade, L. C.; Rajagopalan, B.; Lukas, J. J.; Kanzer, D.

    2011-12-01

    The future reliability of Colorado River Basin water supplies depends on natural hydrologic variability, climate change impacts and other human factors. Natural variability is the dominant component at annual to decadal time scales and thus, capturing and understanding the full range of such variability is critical to assessing risks to near- and mid-term water supplies. Paleohydrologic reconstructions of annual flow using tree rings provide much longer (400+ years) records of annual flow than do historical gage records, and thus a more complete representation of potential flow sequences. While the long-term natural variability of the Upper Colorado River Basin has been well-captured by high-quality multi-century reconstructions of the annual flow of the Colorado River at Lees Ferry, AZ, there has been no equivalent effort for the whole of the Lower Colorado River Basin, including the Gila River. The contribution of the Lower Basin to overall basin flows is estimated to be 15% on average, but this percentage varies significantly from year to year, potentially impacting water supply risk and management for the entire basin. We present preliminary results from an ongoing effort to assess the hydroclimatic variability of the Lower Basin and to develop reconstructions of annual streamflows for the Gila River and Lower Colorado River near Yuma, AZ, commensurate with the existing Lees Ferry reconstructions. We model the flow of the Gila at the confluence with the Colorado River using Generalized Pareto Distribution (GPD) and a generalized linear model (GLM) using Lower Basin tributaries, including the upper Gila River and its tributaries (e.g., Salt, Tonto, and Verde Rivers). We also present preliminary reconstructions of Lower Basin streamflows from tree-ring data using different modeling approaches, including GLM and non-parametric k-nearest-neighbor (KNN). These reconstructions of the Lower Basin flows should facilitate more robust estimation of water supply risk to

  9. T.D. LEE: RELATIVISTIC HEAVY ION COLLISIONS AND THE RIKEN BROOKHAVEN CENTER.

    Energy Technology Data Exchange (ETDEWEB)

    MCLERRAN,L.; SAMIOS, N.

    2006-11-24

    This paper presents the history of Professor T. D. Lee's seminal work on the theory of relativistic heavy ion collisions, and the founding and development of the Riken Brookhaven Center. A number of anecdotes are given about Prof. Lee, and his strong positive effect on his colleagues, particularly young physicists.

  10. Tim Berners-Lee at the RSIS conference from 8-9 December 2003.

    CERN Multimedia

    Patrice Loiez

    2003-01-01

    Tim Berners-Lee participated in the Role of Science in the Information Society conference held at CERN from 8-9 December 2003. Tim Berners-Lee developed the first network and server system that lead to the World Wide Web.

  11. Friedberg-Lee symmetry breaking and its prediction for θ13

    Science.gov (United States)

    Luo, Shu; Xing, Zhi-zhong

    2007-03-01

    We consider an effective Majorana neutrino mass operator with the Friedberg-Lee symmetry; i.e., it is invariant under the transformation να →να + z (for α = e , μ , τ) with z being a space-time independent constant element of the Grassmann algebra. We show that this new flavor symmetry can be broken in such a nontrivial way that the lightest neutrino remains massless but an experimentally-favored neutrino mixing pattern is achievable. In particular, we get a novel prediction for the unknown neutrino mixing angle θ13 in terms of two known angles: sinθ13 = tanθ12 | (1 - tanθ23) / (1 + tanθ23) |. The model can simply be generalized to accommodate CP violation and be combined with the seesaw mechanism.

  12. Women peers in the scientific realm: Sarah Bowdich (Lee)'s expert collaborations with Georges Cuvier, 1825–33

    Science.gov (United States)

    Orr, Mary

    2015-01-01

    The accepted rule for women contributing to nineteenth-century science before 1851 was that they could play only secondary roles in its production and authorship—as translators, illustrators, popularizers—and these by virtue of kinship or marriage to eminent scientists in the field or the laboratory. Sarah Bowdich (Lee) (1791–1856) presents an important amendment to this rule. As an explorer of West Africa on an equal scientific footing with her husband, and then a writer of science independently after his early death, she had other key roles as Georges Cuvier's cross-Channel scientific collaborator and as his first biographer. This article investigates and reframes Sarah's many individual achievements in science and its writing, to examine the larger questions of her case. How were her publications and ‘uneasy career’ in science possible? Can research on women in science today find inspiration in her example? PMID:26489182

  13. James Lee Byars 1/2 an autobiography, sourcebook

    CERN Document Server

    Byars, James Lee; Eleey, Peter

    2014-01-01

    "I see my autobiography as an arbitrary segment of so many pages of time, of things that I have paid attention to at this point in my life," wrote James Lee Byars (1932-1997) in 1969. He was then 37, about half the average male lifespan at the time, and accordingly thought it appropriate to write his "1/2 autobiography." Byars' art ranged from highly refined objects to extremely minimal performance and events, and books, ephemera and correspondence that he distributed widely among friends and colleagues. Today, more than 15 years after his death, assessments of his art must negotiate Byars' performance of his charismatic self in his life and art. For his first major posthumous survey in the US, exhibition curators Magalí Arriola and Peter Eleey decided to produce a catalogue in two "halves," playing on his "1/2 autobiography": a catalogue of the exhibition itself, including new scholarship, and a sourcebook of primary documents. 1/2 an Autobiography, Sourcebook constitutes the latter volume--a reference guid...

  14. Tri-Bimaximal Mixing from Twisted Friedberg-Lee Symmetry

    CERN Document Server

    Araki, Takeshi

    2008-01-01

    We consider the tri-bimaximal generation mixing in terms of the Friedberg-Lee (FL) symmetry. The symmetry is a kind of translational one for the fermion field operators. The symmetry with uniform translation for each generation of neutrinos can partially realize the desired form of the neutrino mass matrix for the tri-bimaximal mixing but should be improved to obtain the experimentally favored neutrino mass spectrum. It is firstly pointed out that patterns of the uniformity breaking are important for resulting form of the neutrino mass matrix. Then we propose a promotion of the FL symmetry to have the $\\mu - \\tau$ one, and call that the twisted FL symmetry. Based on the twisted FL symmetry, two possible schemes are also presented toward the realistic neutrino mass spectrum and the tri-bimaximal mixing. The first possible scheme is that the uniformity of the FL symmetry is broken by terms preserving the twisted FL one. The second one is based on the $S_3$ permutation family symmetry. The breaking terms, which ...

  15. 76 FR 39869 - Lee 8 Storage Partnership; Notice of Motion for Extension of Rate Case Filing Deadline

    Science.gov (United States)

    2011-07-07

    ... Energy Regulatory Commission Lee 8 Storage Partnership; Notice of Motion for Extension of Rate Case Filing Deadline Take notice that on June 27, 2011, Lee 8 Storage Partnership (Lee 8) filed a request for.... Eastern Time on Monday, July 11, 2011. Dated: June 28, 2011. Nathaniel J. Davis, Sr., Deputy...

  16. Lee Metcalf National Wildlife Refuge: Annual narrative report: Calendar year 1990

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf NWR outlines Refuge accomplishments during the 1990 calendar year. The report begins with a summary of the year's...

  17. [Montana MOYOCO Invasive Species Strike Team Final Report 2014] Ninepipe National Wildlife Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO MT Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered by...

  18. [Montana MOYOCO Invasive Species Strike Team Final Report 2016] Ninepipe National Wildlife Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  19. Lee Metcalf National Wildlife Refuge Annual narrative report: Calendar year 1979

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf National Wildlife Refuges outlines Refuge accomplishments during the 1979 calendar year. The report begins with an...

  20. Lee Metcalf National Wildlife Refuge Annual narrative report: Calendar year 1982

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf National Wildlife Refuges outlines Refuge accomplishments during the 1982 calendar year. The report begins with an...

  1. The Trail Inventory of Lee Metcalf National Wildlife Refuge [Cycle 1

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this report is to create a baseline inventory of all non-motorized trails on Lee Metcalf National Wildlife Refuge. Trails in this inventory are...

  2. [Montana MOYOCO Invasive Species Strike Team Final Report 2014] National Bison Range, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO MT Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered by...

  3. Näitleja Tommy Lee Jonesi meditatsioon režissööritoolis / Andris Feldmanis

    Index Scriptorium Estoniae

    Feldmanis, Andris, 1982-

    2007-01-01

    Vestern "Melquiades Estrada kolm matust" ("The Three Burials of Melquiades Estrada") : stsenarist Guillermo Arriaga : režissöör ja osatäitja Tommy Lee Jones : operaator Chris Menges : Ameerika Ühendriigid, 2005

  4. Environmental Assessment : proposed shotgun slug/blackpowder antlerless deer hunt on Lee Metcalf National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Lee Metcalf NWR, in this assessment, is proposing a gun hunt for the 1988 deer hunting season in an effort to reduce the deer herd on the refuge. A biological...

  5. Constant-effort mist netting on the Lee Metcalf National Wildlife refuge, Montana 1993-1998

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In 1993, a constant-effort mist netting station (CEMN) was established on the Lee Metcalf National Wildlife Refuge as part of a network of monitoring stations for...

  6. National Wildlife Refuge Visitor Survey 2012: Individual refuge results for Lee Metcalf National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the National Wildlife Refuge Visitor Survey for Lee Metcalf National Wildlife Refuge and is part of the USGS Data Series 754. The survey was...

  7. Lee Metcalf National Wildlife Refuge Annual narrative report: Calendar year 1981

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf National Wildlife Refuges outlines Refuge accomplishments during the 1981 calendar year. The report begins with an...

  8. [Montana MOYOCO Invasive Species Strike Team Final Report 2013] National Bison Range, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO MT Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered by...

  9. [Montana MOYOCO Invasive Species Strike Team Final Report 2015] Ninepipe National Wildlife Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  10. Näitleja Tommy Lee Jonesi meditatsioon režissööritoolis / Andris Feldmanis

    Index Scriptorium Estoniae

    Feldmanis, Andris, 1982-

    2007-01-01

    Vestern "Melquiades Estrada kolm matust" ("The Three Burials of Melquiades Estrada") : stsenarist Guillermo Arriaga : režissöör ja osatäitja Tommy Lee Jones : operaator Chris Menges : Ameerika Ühendriigid, 2005

  11. Lee Metcalf National Wildlife Refuge: Annual narrative report: Calendar year 1987

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf NWR outlines Refuge accomplishments during the 1987 calendar year. The report begins with a summary of the year's...

  12. [The philosophy & medicinal thought of Dong Mu Lee Jae-Ma].

    Science.gov (United States)

    Jeong, W Y

    1994-01-01

    In this paper, the philosophy and the content of medicinal philosophy of Lee Jae-Ma were illuminated through the history and philosophy of the late Choseon times from 1837 to 1900. Some conclusions were as follows: 1) Lee Jae-Ma was a philosopher as well as a physician, and his philosophical background was well appeared in the book of (Kogchigo). 2) Although the philosophy of Lee Jae-Ma and its terms were derived from the Kyunghakseol of Confucianism, the concept of these terms was different from the Neo-Confucianism of Song Dynasty in China. 3) The four phases of the philosophy of Lee Jae-Ma was originated from the four important trigrams, however, he did not take the meanings of the changes and development of the trigrams in I Ching>, but also took the four components of construction of cosmos similar to the Western theory of four component. ...

  13. [Montana MOYOCO Invasive Species Strike Team Final Report 2011] National Bison Range, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  14. [Montana MOYOCO Invasive Species Strike Team Final Report 2012] National Elk Refuge, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  15. Recovery of squalene from wine lees using ultrasound assisted extraction-a feasibility study.

    Science.gov (United States)

    Naziri, Eleni; Mantzouridou, Fani; Tsimidou, Maria Z

    2012-09-12

    The present work is a systematic approach for valorization of wine lees regarding the recovery of squalene, a bioactive lipid. Such a study is presented for the first time in literature. Separate examination of squalene content in "light" and "heavy" lees from different vinification processes by RP-HPLC demonstrated that these waste streams can be used as a source for this lipid, despite variations due to technological or genetic effects. Next, ultrasound assisted extraction of squalene from the "industrial waste" (the mixture of wine lees generated from different wines) using n-hexane was optimized with the aid of response surface methodology (independent variables: sonication duration and duty cycles). Autolysis was monitored through optical microscopy. Squalene yield (0.6 ± 0.08 g SQ/kg dry lees) was comparable to that of recently examined potential sources (0.2-0.35 g SQ/kg dry olive pomace and 0.06 g SQ/kg olive leaves).

  16. Biohydrogen-production from beer lees biomass by cow dung compost

    Energy Technology Data Exchange (ETDEWEB)

    Fan, Yao-Ting; Zhang, Gao-Sheng; Xing, Yan [Department of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052 (China); Guo, Xin-Yong [Laboratory of Special Functional Materials, Henan University, Kaifeng, Henan 475001 (China); Fan, Mao-Hong [Center for Sustainable Environmental Technologies, Iowa State University, Ames, Iowa 50011 (United States)

    2006-05-15

    Efficient conversion of beer lees wastes into biohydrogen gas by microorganisms was reported for the first time. Batch tests were carried out to analyze influences of several environmental factors on yield of H{sub 2} from beer lees wastes. The maximum yield of H{sub 2} 68.6mlH{sub 2}/g TVS was observed, the value is about 10-fold as compared with that of raw beer lees wastes. The hydrogen content in the biogas was more than 45% and there was no significant methane observed in this study. In addition, biodegradation characteristics of the substrate were also discussed. The results indicated that the HCl pretreatment of the substrate plays a key role in the conversion of the beer lees wastes into biohydrogen by the cow dung composts. (author)

  17. [Montana MOYOCO Invasive Species Strike Team Final Report 2016] National Bison Range, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  18. [Montana MOYOCO Invasive Species Strike Team Final Report 2015] National Bison Range, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  19. [Montana MOYOCO Invasive Species Strike Team Final Report 2012] National Bison Range, Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  20. Lee Metcalf National Wildlife Refuge: Annual narrative report: Calendar year 1988

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf NWR outlines Refuge accomplishments during the 1988 calendar year. The report begins with a summary of the year's...

  1. Lee Metcalf National Wildlife Refuge: Annual narrative report: Calendar year 1989

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Lee Metcalf NWR outlines Refuge accomplishments during the 1989 calendar year. The report begins with a summary of the year's...

  2. An Evaluation of Ecosystem Restoration Options for Lee Metcalf National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Evaluation of Ecosystem Restoration and Management Options covers the hydrogeomorphic analysis (HGM) for Lee Metcalf National Wildlife Refuge. This three step...

  3. Lee and the Operational Art: The Right Place, The Right Time

    Science.gov (United States)

    1992-01-01

    eighteenth."’! Most students of the Civil War would agree that Chancellorsville was Lee’s most brilliant achievement. Chancellors ville was won at the...Hooker. 32 At Chancellors ville Lee-perhaps in desperation-gave brigade commanders more latitude than he was prepared to allow Longstreet two months...de Napoleon ler (32 vals.; Paris: Henry Plon,1. Dumaine, 1866), no. 15310. XIX, 81. 22. "Projet d’une nouvelle organisation de 1 ’armee." Corres

  4. Comparative genomics and stx phage characterization of LEE-negative Shiga toxin-producing Escherichia coli

    Directory of Open Access Journals (Sweden)

    Susan Renee Steyert

    2012-11-01

    Full Text Available Infection by Escherichia coli and Shigella species are among the leading causes of death due to diarrheal disease in the world. Shiga toxin producing Escherichia coli (STEC that do not encode the locus of enterocyte effacement (LEE-negative STEC often possess Shiga toxin gene variants and have been isolated from humans and a variety of animal sources. In this study, we compare the genomes of nine LEE-negative STEC harboring various stx alleles with four complete reference LEE-positive STEC isolates. Compared to a representative collection of prototype E. coli and Shigella isolates representing each of the pathotypes, the whole genome phylogeny demonstrated that these isolates are diverse. Whole genome comparative analysis of the 13 genomes revealed that in addition to the absence of the LEE pathogenicity island, phage encoded genes including non-LEE encoded effectors, were absent from all nine LEE-negative STEC genomes. Several plasmid-encoded virulence factors reportedly identified in LEE-negative STEC isolates were identified in only a subset of the nine LEE-negative isolates further confirming the diversity of this group. In combination with whole genome analysis, we characterized the lambdoid phages harboring the various stx alleles and determined their genomic insertion sites. Although the integrase gene sequence corresponded with genomic location, it was not correlated with stx variant, further highlighting the mosaic nature of these phages. The transcription of these phages in different genomic backgrounds was examined. Expression of the Shiga toxin genes, stx1 and/or stx2, as well as the Q genes, were examined with quantitative reverse transcriptase polymerase chain reaction (qRT-PCR assays. A wide range of basal and induced toxin induction was observed. Overall, this is a first significant foray into the genome space of this unexplored group of emerging and divergent pathogens.

  5. Lee-Yang zeros for DHL and 2D rational dynamics, I. Foliation of the physical cylinder

    CERN Document Server

    Bleher, Pavel; Roeder, Roland

    2010-01-01

    In a classical work of the 1950's, Lee and Yang proved that the zeros of the partition functions of a ferromagnetic Ising models always lie on the unit circle. Distribution of these zeros is physically important as it controls phase transitions in the model. We study this distribution for the Migdal-Kadanoff Diamond Hierarchical Lattice (DHL). In this case, it can be described in terms of the dynamics of an explicit rational function $\\RR$ in two variables (the renormalization transformation). We prove that $\\RR$ is partially hyperbolic on an invariant cylinder $\\CC$. The Lee-Yang zeros are organized in a transverse measure for the central-stable foliation of $\\RR|\\, \\CC$. Their distribution is absolutely continuous. Its density is $C^\\infty$ (and non-vanishing) below the critical temperature. Above the critical temperature, it is $C^\\infty$ on a open dense subset, but it vanishes on the complementary Cantor set of positive measure. This seems to be the first occasion of a complete rigorous description of the...

  6. Neutrino Mixing:. from the Broken μ-τ Symmetry to the Broken Friedberg-Lee Symmetry

    Science.gov (United States)

    Xing, Zhi-Zhong

    I argue that the observed flavor structures of leptons and quarks might imply the existence of certain flavor symmetries. The latter should be a good starting point to build realistic models towards deeper understanding of the fermion mass spectra and flavor mixing patterns. The μ-τ permutation symmetry serves for such an example to interpret the almost maximal atmospheric neutrino mixing angle (θ23 ~ 45°) and the strongly suppressed CHOOZ neutrino mixing angle (θ13 Friedberg-Lee symmetry, for the effective Majorana neutrino mass operator. Luo and I have shown that this symmetry can be broken in an oblique way, such that the lightest neutrino remains massless but an experimentally-favored neutrino mixing pattern is achievable. We get a novel prediction for θ13 in the CP-conserving case: sinθ13 = tanθ12|(1 - tanθ23)/(1 + tanθ23)|. Our scenario can simply be generalized to accommodate CP violation and be combined with the seesaw mechanism. Finally I stress the importance of probing possible effects of μ-τ symmetry breaking either in terrestrial neutrino oscillation experiments or with ultrahigh-energy cosmic neutrino telescopes.

  7. The spirit of St Louis: the contributions of Lee N. Robins to North American psychiatric epidemiology.

    Science.gov (United States)

    Campbell, Nancy D

    2014-08-01

    This article takes up the history of North American psychiatric epidemiology with reference to production of knowledge concerning sociopathic or antisocial personality disorder and drug dependence, abuse, and/or addiction. These overlapping arenas provide a microcosm within which to explore the larger shift of postwar psychiatric epidemiology from community studies based on psychological scales to studies based on specific diagnostic criteria. This paper places the figure of sociologist Lee Nelken Robins within the context of the Department of Psychiatry in the School of Medicine at Washington University in St Louis, Missouri. The St Louis research group--to which Robins was both marginal and central--developed the basis for specific diagnostic criteria and was joined by Robert Spitzer, Jean Endicott and other architects of DSM-III in reorienting American psychiatry towards medical, biological and epidemiological models. Robins was a key linchpin working at the nexus of the psychiatric epidemiological and sociological drug addiction research networks. This article situates her work within the broader set of societal and governmental transformations leading to the technologically sophisticated turn in American psychiatric epidemiology and research on the aetiology of drug abuse and mental health and illness.

  8. Extended Friedberg Lee hidden symmetries, quark masses and CP-violation with four generations

    CERN Document Server

    Bar-Shalom, Shaouly; Soni, Amarjit

    2009-01-01

    Motivated in part by the several observed anomalies involving CP asymmetries of B and B_s decays, we consider the Standard Model with a 4th sequential family (SM4) which seems to offer a rather simple resolution. We initially assume T-invariance by taking the up and down-quark 4x4 mass matrix to be real. Following Friedberg and Lee (FL), we then impose a "hidden" symmetry on the unobserved ("hidden") up and down-quark SU(2) states. The hidden symmetry for four generations ensures the existence of two zero-mass eigenstates, which we take to be the (u,c) and (d,s) states in the up and down-quark sectors, respectively. Then, we simultaneously break T-invariance and the hidden symmetry by introducing two phase factors in each sector. This breaking mechanism generates the small quark masses m_u, m_c and m_d, m_s which, along with the orientation of the hidden symmetry, determine the size of CP-violation in the SM4. For illustration we choose a specific physical picture for the hidden symmetry and the breaking mech...

  9. Neutrino Mixing: from the Broken \\mu-\\tau Symmetry to the Broken Friedberg-Lee Symmetry

    CERN Document Server

    Xing, Z

    2007-01-01

    I argue that the observed flavor structures of leptons and quarks might imply the existence of certain flavor symmetries. The latter should be a good starting point to build realistic models towards deeper understanding of the fermion mass spectra and flavor mixing patterns. The \\mu-\\tau permutation symmetry serves for such an example to interpret the almost maximal atmospheric neutrino mixing angle (\\theta_23 \\sim 45^\\circ) and the strongly suppressed CHOOZ neutrino mixing angle (\\theta_13 < 10^\\circ). In this talk I like to highlight a new kind of flavor symmetry, the Friedberg-Lee symmetry, for the effective Majorana neutrino mass operator. Luo and I have shown that this symmetry can be broken in an oblique way, such that the lightest neutrino remains massless but an experimentally-favored neutrino mixing pattern is achievable. We get a novel prediction for \\theta_13 in the CP-conserving case: \\sin\\theta_13 = \\tan\\theta_12 |(1- \\tan\\theta_23)/ (1+ \\tan\\theta_{23})|. Our scenario can simply be generalize...

  10. The wake south of the Alps: Dynamics and structure of the lee-side flow and secondary potential vorticity banners

    Science.gov (United States)

    Flamant, C.; Richard, E.; Schär, C.; Rotunno, R.; Nance, L.; Sprenger, M.; Benoit, R.

    2004-04-01

    The dynamics and structure of the lee-side flow over the Po valley during a northerly föhn event, which occurred in the framework of the Mesoscale Alpine Programme Special Observation Period (on 8 November 1999 during Intensive Observation Period 15), has been investigated using aircraft data and high-resolution numerical simulations. Numerical simulations were performed with the mesoscale non-hydrostatic model Meso-NH, using three nested domains (with horizontal resolutions 32, 8 and 2 km), the 2 km resolution domain being centred on the Po valley. The basic data-model comparison, and back-trajectory and tracer release analyses, provided evidence that the jet/wake structure of the flow above the Po valley could be reasonably identified with the mountain pass/peak distributions. Measurements from three aircraft flying below the Alps crestline (at 2700, 1500 and 600 m above sea level) along two 350 km east-west legs, designed to be approximately perpendicular to the northerly synoptic flow, were used to compute the potential vorticity (PV) experimentally assuming the lee-side flow to be two-dimensional. (The simplified form of the PV under these assumptions is hereafter referred to as SPV). Due to increasing lee-side flow curvature with decreasing altitude (caused by flow splitting at the scale of the Alps), the experimentally derived SPV was compared to its simulated counterpart.In situ measurements showed that coherent secondary PV banners (PVB2s) do exist downstream of the complex Alpine terrain, as observations show oscillations between positive and negative values of SPV as expected from the simulations. The details of the structure of the SPV field simulated with Meso-NH were found to be different from the observations (i.e. the location of observed maxima and minima of SPV did not match their simulated counterparts at particular points). This is because the correspondence between observed and modelled velocity and potential temperature fields was not good

  11. [Lee Jungsook, a Korean independence activist and a nurse during the Japanese colonial period].

    Science.gov (United States)

    Kim, Sook Young

    2015-04-01

    This article examines the life of Lee Jungsook, a Korean nurse, as a independence activist during the Japanese colonial period. Lee Jungsook(1896-1950) was born in Bukchung in Hamnam province. She studied at Chungshin girl's high school and worked at Severance hospital. The characteristics and culture of her educational background and work place were very important factors which influenced greatly the life of Lee Jungsook. She learned independent spirit and nationalism from Chungshin girls' high school and worked as nurse at the Severance hospital which were full of intense aspiration for Korea's independence. Many of doctors, professors and medical students were participated in the 3.1 Independence Movement. Lee Jungsook was a founding member of Hyulsungdan who tried to help the independence activists in prison and their families and worked as a main member of Korean Women's Association for Korean Independece and Kyungsung branch of the Korean Red Cross. She was sent to jail by the Japanese government for her independence activism. After being released after serving two years confinement, she worked for the Union for Women's Liberation as a founding member. Lee Joungsook was a great independence activist who had a nursing care spirit as a nurse.

  12. Annexe III. Biographie de Lee Kuan Yew, premier ministre de Singapour

    OpenAIRE

    2014-01-01

    Harry Lee Kuan Yew (« la lumière qui brille »), fils aîné de Lee Chin Koon (cadre de société pétrolière et bijoutier) et de Chua Jim Neo, est né à Singapour en 1923. Sa famille, d’origine Hakka (Chine méridionale), est implantée à Singapour depuis 1830-40 ; l’arrière grand-mère maternelle et le grand-père paternel ont épousé respectivement un Malais et un Chinois peranakan indonésien, ce qui explique l’esprit multiracial du cercle familial qui a tant marqué le jeune Lee dans ses luttes ultéri...

  13. Thomas George Lee - Implantation and early development of North American rodents

    DEFF Research Database (Denmark)

    Carter, Anthony Michael

    2011-01-01

    A century ago Thomas G. Lee amassed an unparalleled collection of developmental series of North American rodents such as the thirteen-lined ground squirrel, the Plains pocket gopher and Merriam's kangaroo rat. He was the first to describe the initial attachment of the squirrel blastocyst to the a......A century ago Thomas G. Lee amassed an unparalleled collection of developmental series of North American rodents such as the thirteen-lined ground squirrel, the Plains pocket gopher and Merriam's kangaroo rat. He was the first to describe the initial attachment of the squirrel blastocyst...

  14. Demonstration of An Integrated Approach to Mercury Control at Lee Station

    Energy Technology Data Exchange (ETDEWEB)

    Vitali Lissianski; Pete Maly

    2007-12-31

    reduce mercury emissions. The program was comprised of field and pilot-scale tests, engineering studies and consisted of eight tasks. As part of the program, GE conducted pilot-scale evaluation of sorbent effect on mercury reduction, supplied and installed adjustable riffle boxes to assist in combustion optimization, performed combustion optimization, supplied mobile sorbent injection and flue gas humidification systems, conducted CFD modeling of sorbent injection and flue gas humidification, and performed mercury testing including a continuous 30-day sorbent injection trial. Combustion optimization was the first step in reduction of mercury emissions. Goals of combustion optimization activities were to improve 'native' mercury capture on fly ash and reduce NO{sub x}. Combustion optimization included balancing of coal flow through individual burners to eliminate zones of carbon-rich combustion, air flow balancing, and burner adjustments. As part of the project, the original riffle boxes were replaced with Foster-Wheeler's adjustable riffle boxes to allow for biasing the coal flow between the coal pipes. A 10-point CO/O{sub 2}/NO{sub x} grid was installed in the primary superheater region of the back pass to assist in these activities. Testing of mercury emissions before and after combustion optimization demonstrated that mercury emissions were reduced from 2.9 lb/TBtu to 1.8 lb/TBtu due to boiler operation differences in conjunction with combustion optimization, a 38% improvement in 'native' mercury capture on fly ash. Native mercury reduction from coal was {approx}42% at baseline conditions and 64% at optimized combustion conditions. As a result of combustion optimization NO{sub x} emissions were reduced by 18%. A three-dimensional CFD model was developed to study the flow distribution and sorbent injection in the post air heater duct in Lee Station Unit 3. Modeling of the flow pattern exiting the air pre-heater demonstrated that because of the

  15. Advocacy -- Professional School Counselors Closing the Achievement Gap Through Empowerment: A Response to Hipolito-Delgado and Lee

    Science.gov (United States)

    Mitcham-Smith, Michelle

    2007-01-01

    The author comments on several aspects of an article by Hipolito-Delgado and Lee entitled "Empowerment Theory for the Professional School Counselor: A Manifesto for What Really Matters" (Professional School Counseling, v10 n4 p327-332 Apr 2007; see EJ767346). Hipolito-Delgado and Lee's article highlights a critical need for a comprehensive,…

  16. Supercritical Fluid Extraction and Chromatography Using a Lee Scientific Series 600 SFE/SFC System

    Science.gov (United States)

    1992-05-01

    Dioxide and Ethylene. Journal of Chemical Engineering Data , 26:47. Lee, M.L. and K.E. Markides 1987 Chromatography with Supercritical Fluids. Science...Publishers, Stoneham, MA. McHugh, M.A., and M.E. Paulaitis 1980 Solid Solubilities of Naphthalene and Biphenyle in Supercritical Carbon Dioxide. Journal of Chemical Engineering Data , 25

  17. Exploring Memory: Li-Young Lee's "Mnemonic" (Modern Poetry in the Classroom).

    Science.gov (United States)

    Huntley, E. D.

    1994-01-01

    Provides an account of how one English teacher fosters awareness of the metaphorical nature of language and the sensory experience of poetry. Shows how the poem "Mnemonic" by Li-Young Lee can be used to instruct students concerning how poetry speaks to the memories of the reader. (HB)

  18. Servicing the first web server - Tim Berners-Lee's NeXT

    CERN Multimedia

    unknown, Association aBCM

    2009-01-01

    In August 2009 a team from the Association aBCM in Lausanne came to CERN to give the world's first web server a health check under the watchful eye of web pioneer Robert Cailliau. They took an image of the hard drive at this time, copies of which were given to Robert Cailliau and Tim Berners-Lee.

  19. Ever Searching for Better Living——Tan Sri Lee Kim Yew and his CHHB Group

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ Visionary Entrepreneur There have been many spectacular feats and achievements by Malaysians in the last two decade,but none as uneXpected and hard-fought as the rise of Tan Sri Lee Kim Yew,Group Managing Director and Founder of CHHB.

  20. What the Butler Saw: Lee Daniels's Studies in Biography and History

    Science.gov (United States)

    Beck, Bernard

    2014-01-01

    The movie "Lee Daniels' The Butler" is an example of a work that is meant not only to entertain but to convey an important attitude and offer important viewpoints. The movie deals with a deep issue in the history of movies and the history of the country: racial inequality. Three issues are discussed in this article: (a) African…

  1. Optimization of biohydrogen production from beer lees using anaerobic mixed bacteria

    Energy Technology Data Exchange (ETDEWEB)

    Cui, Maojin; Yuan, Zhuliang; Zhi, Xiaohua; Shen, Jianquan [Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory of New Materials, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190 (China)

    2009-10-15

    Beer lees are the main by-product of the brewing industry. Biohydrogen production from beer lees using anaerobic mixed bacteria was investigated in this study, and the effects of acidic pretreatment, initial pH value and ferrous iron concentration on hydrogen production were studied at 35 C in batch experiments. The hydrogen yield was significantly enhanced by optimizing environmental factors such as hydrochloric acid (HCl) pretreatment of substrate, initial pH value and ferrous iron concentration. The optimal environmental factors of substrate pretreated with 2% HCl, pH = 7.0 and 113.67 mg/l Fe{sup 2+} were observed. A maximum cumulative hydrogen yield of 53.03 ml/g-dry beer lees was achieved, which was approximately 17-fold greater than that in raw beer lees. In addition, the degradation efficiency of the total reducing sugar, and the contents of hemicellulose, cellulose, lignin and metabolites are presented, which showed a strong dependence on the environmental factors. (author)

  2. Who Killed Annabel Lee? Writing about Literature in the Composition Classroom

    Science.gov (United States)

    Richardson, Mark

    2004-01-01

    Literature is a vehicle for teaching critical thinking and interpretation by making students write about literature rather than silencing them with hegemonic discourses. The interpretation of E.A. Poe's Annabel Lee by the students in an experiment indicates the need to develop confidence and conviction in the students regarding their writing that…

  3. 77 FR 18852 - Lee Metcalf National Wildlife Refuge, Stevensville, MT; Draft Comprehensive Conservation Plan and...

    Science.gov (United States)

    2012-03-28

    ... Fish and Wildlife Service Lee Metcalf National Wildlife Refuge, Stevensville, MT; Draft Comprehensive Conservation Plan and Environmental Assessment AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of availability; request for comments; announcement of public meeting SUMMARY: We, the U.S. Fish and...

  4. Lee Smolin Five Great Problems and Their Solution without Ontological Hypotheses

    CERN Document Server

    Quznetsov, Gunn

    2011-01-01

    Solutions of Lee Smolin Five Great Problems from his book {\\it The Trouble with Physics: the Rise of String Theory, the Fall of a Science, and What Comes Next} are described. This solutions is obtained only from the properties of probability without any ontological hypotheses.

  5. Delivering the Lee Silverman Voice Treatment (LSVT) by Web Camera: A Feasibility Study

    Science.gov (United States)

    Howell, Susan; Tripoliti, Elina; Pring, Tim

    2009-01-01

    Background: Speech disorders are a feature of Parkinson's disease, typically worsening as the disease progresses. The Lee Silverman Voice Treatment (LSVT) was developed to address these difficulties. It targets vocal loudness as a means of increasing vocal effort and improving coordination across the subsystems of speech. Aims: Currently LSVT is…

  6. High Performance Sustainable School Design: Roy Lee Walker Elementary, McKinney, Texas.

    Science.gov (United States)

    SHW Group, Inc., Dallas, TX.

    This document describes the sustainable features of the Roy Lee Walker Elementary School (Texas), a prototype "Eco Education" school that blends the physical environment with the student learning process while protecting the site. The document also presents the process of integrating sustainability criteria in all phases of the school's…

  7. Charcot, Mitchell and Lees: neurology free thinkers and their experiences of psychoactive drugs

    Directory of Open Access Journals (Sweden)

    Hélio A. G. Teive

    Full Text Available ABSTRACT Three world-famous neurologists, Charcot and Mitchell, in the 19th century, and Lees, in this century, all of whom had great scientific curiosity, experimented with the psychoactive drugs hashish, mescal and yagé, respectively, in an attempt to increase their knowledge of neurological diseases and how the brain works.

  8. What the Butler Saw: Lee Daniels's Studies in Biography and History

    Science.gov (United States)

    Beck, Bernard

    2014-01-01

    The movie "Lee Daniels' The Butler" is an example of a work that is meant not only to entertain but to convey an important attitude and offer important viewpoints. The movie deals with a deep issue in the history of movies and the history of the country: racial inequality. Three issues are discussed in this article: (a) African…

  9. Two Great People in American History——The comparison between Grant and Lee

    Institute of Scientific and Technical Information of China (English)

    具东梅

    2009-01-01

    Ulysses Simpson Grant and Robert E.Lee were two greatest generals during the civil waif in the United States.They seem be in complete contrast,yet they had much in common.This paper mainly discusses these two great soldiers'lives,similarities and differences in background,characteristics and position in general.

  10. What Really Matters is School Counselor Empowerment: A Response to Hipolito-Delgado and Lee

    Science.gov (United States)

    Schmidt, John J.

    2007-01-01

    The author critiques an article by Hipolito-Delgado and Lee ("Empowerment Theory for the Professional School Counselor: A Manifesto for What Really Matters," Professional School Counseling, v10 n4 p327-332 Apr 2007) in which they use empowerment theory as a springboard to determining "what really matters" in professional school counseling. He…

  11. Unitarity, Lorentz invariance and causality in Lee-Wick theories: An asymptotically safe completion of QED

    CERN Document Server

    van Tonder, André

    2008-01-01

    We revisit the previously unsolved problems of ensuring Lorentz invariance and non-perturbative unitarity in Lee-Wick theories. We base our discussion on an ultraviolet completion of QED by Lee-Wick ghost fields, which is argued to be asymptotically safe. We argue that as long as the state space is based upon a suitable choice of distributions of a type invented by Gel'fand and Shilov, the Lee-Wick ghosts can be eliminated while preserving Lorentz invariance to produce a unitary theory. The method for eliminating ghosts is in principle non-perturbatively well-defined, in contrast with some previous proposals. We also point out a second, independent mechanism for producing a unitary theory, based on a covariant constraint on the maximum four-momentum, which would imply an amusing connection, based on naturalness, between the coupling constant and the hierarchy of scales in the theory. We further emphasize that the resulting theory is causal, and point out some analogies between between the behaviour of Lee-Wic...

  12. Fighting with Reality: Considering Mark Johnson's Pragmatic Realism through Bruce Lee's Jeet Kune Do Method

    Science.gov (United States)

    Miller, Alexander David

    2015-01-01

    This dissertation considers the supportive and complementary relation between Mark Johnson's embodied realism and Bruce Lee's Jeet Kune Do as a philosophical practice. In exploring this relationship, the emphasis on one's embodiment condition and its relationship with metaphor and self-expression are the primary focus. First, this work involves…

  13. Only three personality factors are fully replicable across languages : Reply to Ashton and Lee

    NARCIS (Netherlands)

    De Raad, Bode; Barelds, Dick P. H.; Mlacic, Boris; Church, A. Timothy; Katigbak, Marcia S.; Ostendorf, Fritz; Hrebickova, Martina; Di Bias, Lisa; Szirmak, Zsofia; Mlačić, B.; Hřebíčková, M.; Di Blas, L.

    2010-01-01

    We reply to Ashton and Lee's (2010) comments on our paper on the cross-cultural replicability of trait factors (De Raad et al., 2010). More specifically, we comment on the interpretation of congruence coefficients, the distinction between Agreeableness and Honesty-Humility in three languages, and th

  14. 77 FR 46613 - Safety Zone; 2012 Ironman US Championship Swim, Hudson River, Fort Lee, NJ

    Science.gov (United States)

    2012-08-06

    ...) entitled 2012 Ironman US Championship Swim, Hudson River, Fort Lee, NJ in the Federal Register (77 FR 34285...) 366-9826. SUPPLEMENTARY INFORMATION: Table of Acronyms DHS Department of Homeland Security FR Federal... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; 2012 Ironman US Championship Swim,...

  15. Professor Alison Lee: A Stellar Presence in Australian Higher Education Research

    Science.gov (United States)

    Manathunga, Catherine; Kelly, Frances; Grant, Barbara

    2016-01-01

    For around two decades and up to her untimely death in September 2012, Professor Alison Lee was a significant figure in Australian higher education research. Alison's incisive work ranged across several sub-fields of higher education studies and helped broaden the field as a whole beyond issues of teaching and learning. She also brought an…

  16. ¿Cómo se lee y escribe en línea?

    OpenAIRE

    2013-01-01

    Se pretende averiguar, en base a datos de una investigación en curso, cómo se lee y escribe en clase cuando cada aprendiz dispone de portátil, está conectado a la red y el libro de texto es digital.

  17. Delivering the Lee Silverman Voice Treatment (LSVT) by Web Camera: A Feasibility Study

    Science.gov (United States)

    Howell, Susan; Tripoliti, Elina; Pring, Tim

    2009-01-01

    Background: Speech disorders are a feature of Parkinson's disease, typically worsening as the disease progresses. The Lee Silverman Voice Treatment (LSVT) was developed to address these difficulties. It targets vocal loudness as a means of increasing vocal effort and improving coordination across the subsystems of speech. Aims: Currently LSVT is…

  18. Ten Years Public Domain for the original Web Software : message from Tim Berners-Lee

    CERN Multimedia

    2003-01-01

    "CERN's decision to make the Web foundations and protocols available on a royalty free basis, and without additional impediments, was crucial to the Web's existence. Without this commitment, the enormous individual and corporate investment in Web technology simply would never have happened, and we wouldn't have the Web today." (Tim Berners-Lee, Director, WWW Consortium)

  19. Distribution of non-LEE-encoded type 3 secretion system dependent effectors in enteropathogenic Escherichia coli

    Directory of Open Access Journals (Sweden)

    Fábia A. Salvador

    2014-09-01

    Full Text Available Enteropathogenic Escherichia coli (EPEC are important human gastroenteritis agents. The prevalence of six non-LEE genes encoding type 3 translocated effectors was investigated. The nleC, cif and nleB genes were more prevalent in typical than in atypical EPEC, although a higher diversity of genes combinations was observed in atypical EPEC.

  20. Numerical Simulation of Wake Effects in the Lee of a Farm of Wave Dragon Wave Energy Converters

    DEFF Research Database (Denmark)

    Beels, C.; Troch, P.; De Visch, K.;

    2009-01-01

    . In this paper wake effects in the lee of a single Wave Dragon WEC and multiple Wave Dragon WECs are studied in a time-dependent mild-slope equation model. The Wave Dragon WEC is a floating offshore converter of the overtopping type. The water volume of overtopped waves is first captured in a basin above mean...... sea level and then drains back to the sea through hydro turbines. The wake dimensions behind a single Wave Dragon WEC are investigated for uni- and multidirectional waves. An increasing directional spreading results in a faster wave redistribution behind the WEC. The power absorption of a farm of five...... Wave Dragon WECs, installed in a staggered grid, is calculated for varying inbetween distances. It is observed that an in-between distance of 2D is preferred, when taking spatial and safety considerations into account....

  1. On Fatou sets concerning Yang-Lee theory

    Institute of Scientific and Technical Information of China (English)

    QIAO; Jianyong

    2005-01-01

    The sets of the points corresponding to the complexphases of the Potts model on the diamond hierarchcal lattice arestudied. These sets are the Fatou sets of a family of rationalmappings. The topological structures of these sets are described completely.

  2. Bacterial-Chromatin Structural Proteins Regulate the Bimodal Expression of the Locus of Enterocyte Effacement (LEE Pathogenicity Island in Enteropathogenic Escherichia coli

    Directory of Open Access Journals (Sweden)

    Hervé Leh

    2017-08-01

    Full Text Available In enteropathogenic Escherichia coli (EPEC, the locus of enterocyte effacement (LEE encodes a type 3 secretion system (T3SS essential for pathogenesis. This pathogenicity island comprises five major operons (LEE1 to LEE5, with the LEE5 operon encoding T3SS effectors involved in the intimate adherence of bacteria to enterocytes. The first operon, LEE1, encodes Ler (LEE-encoded regulator, an H-NS (nucleoid structuring protein paralog that alleviates the LEE H-NS silencing. We observed that the LEE5 and LEE1 promoters present a bimodal expression pattern, depending on environmental stimuli. One key regulator of bimodal LEE1 and LEE5 expression is ler expression, which fluctuates in response to different growth conditions. Under conditions in vitro considered to be equivalent to nonoptimal conditions for virulence, the opposing regulatory effects of H-NS and Ler can lead to the emergence of two bacterial subpopulations. H-NS and Ler share nucleation binding sites in the LEE5 promoter region, but H-NS binding results in local DNA structural modifications distinct from those generated through Ler binding, at least in vitro. Thus, we show how two nucleoid-binding proteins can contribute to the epigenetic regulation of bacterial virulence and lead to opposing bacterial fates. This finding implicates for the first time bacterial-chromatin structural proteins in the bimodal regulation of gene expression.

  3. Water quality and ecology of the River Lee: mass balance and a review of temporal and spatial data

    Directory of Open Access Journals (Sweden)

    D. L. Snook

    2004-01-01

    Full Text Available A regional overview of the water quality and ecology of the River Lee catchment is presented. Specifically, data describing the chemical, microbiological and macrobiological water quality and fisheries communities have been analysed, based on a division into river, sewage treatment works, fish-farm, lake and industrial samples. Nutrient enrichment and the highest concentrations of metals and micro-organics were found in the urbanised, lower reaches of the Lee and in the Lee Navigation. Average annual concentrations of metals were generally within environmental quality standards although, on many occasions, concentrations of cadmium, copper, lead, mercury and zinc were in excess of the standards. Various organic substances (used as herbicides, fungicides, insecticides, chlorination by-products and industrial solvents were widely detected in the Lee system. Concentrations of ten micro-organic substances were observed in excess of their environmental quality standards, though not in terms of annual averages. Sewage treatment works were the principal point source input of nutrients, metals and micro-organic determinands to the catchment. Diffuse nitrogen sources contributed approximately 60% and 27% of the in-stream load in the upper and lower Lee respectively, whereas approximately 60% and 20% of the in-stream phosphorus load was derived from diffuse sources in the upper and lower Lee. For metals, the most significant source was the urban runoff from North London. In reaches less affected by effluent discharges, diffuse runoff from urban and agricultural areas dominated trends. High microbiological content, observed in the River Lee particularly in urbanised reaches, was far in excess of the EC Bathing Water Directive standards. Water quality issues and degraded habitat in the lower reaches of the Lee has led to impoverished aquatic fauna but, within the mid-catchment reaches and upper agricultural tributaries, less nutrient enrichment and channel

  4. 小振幅背风波的非线性特征及水汽敏感性试验%Numerical Simulations of Lee Wave's Nonlinear Characteristics and Vapor Sensitivity

    Institute of Scientific and Technical Information of China (English)

    徐良韬; 林文实; 张义军

    2011-01-01

    从Scorer的背风波发生理论条件出发,首先考虑3层均匀干空气,利用WRF模式模拟出干空气条件下的小振幅拦截背风波动,波动主要发生在2~5 km的高度范围,波长为8 km左右,这与之前的观测和模拟结果相一致.分析表明:形成平稳背风波动过程中,存在能量波包向下游传播的性质,各位置振动的强度会发生周期性的增强和衰减.引入水汽进行的敏感性试验表明:随着水汽增多,背风波动的波长会增加,且波动传播中所能达到的最大垂直速度有变小趋势.%Based on the Scorer's theory of the lee wave, the trapped lee wave of small amplitude is successfully simulated using the Weather Research and Forecasting(WRF) model, considering the dry atmosphere with three even layers. Results show that in the linear theory, the trapped lee wave of the flow over terrain can be simulated well. The wave appears primarily from 2 km to 5 km in the vertical direction and the wavelength is on the order of 8 km. These results are in accordance with previous observation and numerical simulations.The analysis shows that the energy wave packet drifts downstream in the forming process of stationary lee wave and the oscillation intensity of each location periodically amplifies and weakens. At the same time, before the stable trapped lee wave forms, small disturbances have been generated, which would have significant impacts on vertical velocity of the wave.The process of introducing vapor is deemed to be creditable according to the original relative humidity vertical profile by WRF model output data. Small disturbances mentioned make vapor oscillate and easily initiate cumulus convection. Further, with vapor content increasing, cumulus convection appears earlier in the simulation. When vapor is introduced in the model, the lee wave would interact with cumulus convection, which has not been discussed in detail.Sensitivity experiments are conducted by changing the relative

  5. Anders lees, sien, praat en glo � �n antwoord op ander se lees van �Om die Bybel anders te lees: �n Etiek van Bybellees�

    Directory of Open Access Journals (Sweden)

    Gerrie Snyman

    2010-03-01

    Full Text Available To read, see, talk and believe differently � a response to other readers� reading of �Om die Bybel anders te lees: �n Etiek van Bybellees� As any exegesis is necessarily preceded by certain theological convictions, the author of the book Om die Bybel anders te lees: �n Etiek van Bybellees (2007 responds to criticism on the book flowing from a seminar � especially the remarks made by Hans van Deventer and Jurie le Roux. Firstly, the ideas on a changed view of the deity are discussed. This conversation is augmented by a discussion of the criticism levelled at the idea that reading the Bible has consequences for other people, and that a different reading would lead to a different concept of God. Van Deventer�s comments regarding the difficulty of debating theological issues are strengthened by a critical discussion of a debate in Die Kerkblad regarding the grammatical-historical method. His critical remarks regarding the value of a historical consciousness are discussed by way of a question on the relationship between a liberal theology and a conservative political point of view. Le Roux�s struggle with Snyman�s utilisation of apartheid as a rhetorical strategy leads the discussion to a recent example of overcoming racism while using unreflectingly racist imagery. This example indicates how theology effects cosmetic changes, without taking on the real issue. For this reason, the author concludes that a critical reading of the own Western tradition in Africa has become necessary.�--- Abstract translated into Sipedi ---Go bala, go bona, go bolela le go dumela ka go fapana - go arabela go balwa ga 'Om die Bybel anders te lees: �n Etiek van Bybellees' ke babadi ba bangweBjale ka ge go fetleka Bibele go etwa pele ke ditumelo t�a go tiba t�a teologi, mongwadi wa Om die Bybel anders te lees: �n Etiek van Bybellees (2007 o arabela ditsholo t�a puku ye t�eo di tswet�wego ke seminare ye e fetilego - kudu ditshwayotshwayo

  6. Lee-Yang zeros analysis of finite density lattice QCD

    CERN Document Server

    Crompton, P

    2001-01-01

    coefficients from different ensembles (through the ratio of the normalisations) we are thus able to alleviate the bias in our sampling. We then further develop this method for SU(3) with static quarks by generating a range of canonical ensembles which we combine with our new re-weighting approach. From our SU(2) measurements we establish the existence of a diquark superfluid at high densities and low temperatures. We also determine the position and order of the associated symmetry breaking transitions in the mass - chemical potential plane. From our measurements of static SU(3) we establish that the finite density transition at intermediate coupling is a first order percolation transition. Having addressed the pathologies of the re-weighting method in two nonabelian gauge field theories which are simpler to evaluate numerically, in future work SU(3) QCD can be evaluated at finite density. Recent results from four-fermion interaction models have suggested that new exotic phases form at finite baryon density wh...

  7. Extended Friedberg-Lee hidden symmetries, quark masses, and CP violation with four generations

    Science.gov (United States)

    Bar-Shalom, Shaouly; Oaknin, David; Soni, Amarjit

    2009-07-01

    Motivated in part by the several observed anomalies involving CP asymmetries of B and Bs decays, we consider the standard model with a 4th sequential family (SM4) which seems to offer a rather simple resolution. We initially assume T-invariance by taking the up and down-quark 4×4 mass matrix to be real. Following Friedberg and Lee (FL), we then impose a hidden symmetry on the unobserved (hidden) up and down-quark SU(2) states. The hidden symmetry for four generations ensures the existence of two zero-mass eigenstates, which we take to be the (u,c) and (d,s) states in the up and down-quark sectors, respectively. Then, we simultaneously break T-invariance and the hidden symmetry by introducing two phase factors in each sector. This breaking mechanism generates the small quark masses mu, mc and md, ms, which, along with the orientation of the hidden symmetry, determine the size of CP-violation in the SM4. For illustration we choose a specific physical picture for the hidden symmetry and the breaking mechanism that reproduces the observed quark masses, mixing angles and CP-violation, and at the same time allows us to further obtain very interesting relations/predictions for the mixing angles of t and t'. For example, with this choice we get Vtd˜(Vcb/Vcd-Vts/Vus)+O(λ2) and Vt'b˜Vt'd·(Vcb/Vcd), Vtb'˜Vt'd·(Vts/Vus), implying that Vt'd>Vt'b, Vtb'. We furthermore find that the Cabibbo angle is related to the orientation of the hidden symmetry and that the key CP-violating quantity of our model at high energies, JSM4≡Im(VtbVt'b⋆Vt'b'Vtb'⋆), which is the high-energy analogue of the Jarlskog invariant of the SM, is proportional to the light-quark masses and the measured Cabibbo-Kobayashi-Maskawa quark-mixing matrix angles: |JSM4|˜A3λ5×(mu/mt+mc/mt'-md/mb+ms/mb')˜10-5, where Ã0.81 and λ=0.2257 are the Wolfenstein parameters. Other choices for the orientation of the hidden symmetry and/or the breaking mechanism may lead to different physical outcomes. A

  8. Yang-Lee edge singularities determined from experimental high-field magnetization data

    Energy Technology Data Exchange (ETDEWEB)

    Binek, Ch.; Kleemann, W. [Laboratorium fuer Angewandte Physik, Gerhard-Mercator-Universitaet Duisburg, Duisburg (Germany); Aruga Katori, H. [RIKEN, Institute of Physical and Chemical Research, Wako, Saitama (Japan)

    2001-09-03

    The isothermal magnetization m(H) of the metamagnet FeCl{sub 2} is measured in axial magnetic fields 0{<=}{mu}{sub 0}H{sub a}{<=}12 T at temperatures 34{<=}T{<=}53 K above the Neel temperature, where the system is essentially a two-dimensional Ising ferromagnet. The analysis of the data indicates experimental accessibility of the critical exponent {mu} of the Yang-Lee edge singularities. They manifest themselves in divergences of the density functions g({theta}), which quantify the distribution of the zeros of the partition function on the Lee-Yang unit circle in the complex plane. In accordance with the hypothesis of universality, a critical exponent close to the theoretical prediction for the two-dimensional Ising ferromagnet, {mu}=-1/6, is found. (author). Letter-to-the-editor.

  9. Phenolic composition and antioxidant activity in sparkling wines: modulation by the ageing on lees.

    Science.gov (United States)

    Stefenon, C A; Bonesi, C De M; Marzarotto, V; Barnabé, D; Spinelli, F R; Webber, V; Vanderlinde, R

    2014-02-15

    Sparkling wines (SW) have a special biological ageing on lees that is performed using two distinct methods: in the bottle (Champenoise) or in isobaric tanks (Charmat method). The objective of this study was to compare the levels of phenolic compounds, β-Glucosidase and antioxidant activity during the ageing on lees, in samples of SW produced at industrial scale by both methods. The β-Glucosidase activity has been constant over time, showing a close relationship with all the polyphenols studied (resveratrol, piceid, tyrosol, gallic, caffeic and ferulic acids), which were affected by the sur lie time. With these cross-reactions, the biological properties of the SW were also modulated. The results showed that the long period of ageing decreased the antioxidant potential in all samples. This work demonstrates that the sur lie is more important than the production method itself, due to its ability to modulate the necessary changes to achieve the specific objective.

  10. Book review of: "Clinical aspects of electroporation" by Stephen T Kee, Julie Gehl, Edward W Lee

    Directory of Open Access Journals (Sweden)

    Spugnini Enrico

    2011-10-01

    Full Text Available Abstract This article is a review of the book: Clinical aspects of electroporation, by Stephen T. Kee, Julie Gehl, Edward W Lee, which is published by Springer Press. Basic information that should be helpful in deciding whether to read the book and whether to use it as a reference book is presented. This includes an introduction, a description of all the sections of the book, and a comparison with recently published books on the topic.

  11. Becoming an International Scientist in South Korea: Ho Wang Lee's Research Activity about Epidemic Hemorrhagic Fever.

    Science.gov (United States)

    Shin, Miyoung

    2017-04-01

    In the 1960-70s, South Korea was still in the position of a science latecomer. Although the scientific research environment in South Korea at that time was insufficient, there was a scientist who achieved outcomes that could be recognized internationally while acting in South Korea. He was Ho Wang Lee(1928~ ) who found Hantann Virus that causes epidemic hemorrhagic fever for the first time in the world. It became a clue to identify causative viruses of hemorrhagic diseases that were scattered here and there throughout the world. In addition, these outcomes put Ho Wang Lee on the global center of research into epidemic hemorrhagic fever. This paper examines how a Korean scientist who was in the periphery of virology could go into the central area of virology. Also this article shows the process through which the virus found by Ho Wang Lee was registered with the international academia and he proceeded with follow-up research based on this progress to reach the level at which he generalized epidemic hemorrhagic fever related studies throughout the world. While he was conducting the studies, experimental methods that he had never experienced encountered him as new difficulties. He tried to solve the new difficulties faced in his changed status through devices of cooperation and connection. Ho Wang Lee's growth as a researcher can be seen as well as a view of a researcher that grew from a regional level to an international level and could advance from the area of non-mainstream into the mainstream. This analytic tool is meaningful in that it can be another method of examining the growth process of scientists in South Korea or developing countries.

  12. Bruce lee martial arts thought research%李小龙武术思想研究

    Institute of Scientific and Technical Information of China (English)

    孔令超

    2016-01-01

    Bruce lee as a milestone of the Chinese martial character,martial arts of Chinese martial arts and even the world has produced unprecedented impact.Bruce lee's success in martial arts,and he has is closely related to the different ideas of martial arts,including innovation of martial arts;Actual combat martial arts;The thought of fusion martial arts and philosophy;Pursuit of the perfect wushu thoughts,etc.Bruce lee's these martial arts ideas for development and promote the traditional martial arts today has very important significance.%李小龙身为中国武术界的里程碑式人物,对中国武术乃至世界武术都产生了前无古人的影响。李小龙在武术上的成就,与他本身具有的与众不同的武术思想密切相关,包括勇于创新的武术思想;实战主义武术思想;武术与哲学融合的思想;追求完美的武术思想等。李小龙的这些武术思想对于今天发展和推广传统武术都有十分重要的借鉴意义。

  13. Observation of Mountain Lee Waves with MODIS NIR Column Water Vapor

    Science.gov (United States)

    Lyapustin, A.; Alexander, M. J.; Ott, L.; Molod, A.; Holben, B.; Susskind, J.; Wang, Y.

    2014-01-01

    Mountain lee waves have been previously observed in data from the Moderate Resolution Imaging Spectroradiometer (MODIS) "water vapor" 6.7 micrometers channel which has a typical peak sensitivity at 550 hPa in the free troposphere. This paper reports the first observation of mountain waves generated by the Appalachian Mountains in the MODIS total column water vapor (CWV) product derived from near-infrared (NIR) (0.94 micrometers) measurements, which indicate perturbations very close to the surface. The CWV waves are usually observed during spring and late fall or some summer days with low to moderate CWV (below is approx. 2 cm). The observed lee waves display wavelengths from3-4 to 15kmwith an amplitude of variation often comparable to is approx. 50-70% of the total CWV. Since the bulk of atmospheric water vapor is confined to the boundary layer, this indicates that the impact of thesewaves extends deep into the boundary layer, and these may be the lowest level signatures of mountain lee waves presently detected by remote sensing over the land.

  14. Impact of different techniques involving contact with lees on the volatile composition of cider.

    Science.gov (United States)

    Antón-Díaz, María José; Suárez Valles, Belén; Mangas-Alonso, Juan José; Fernández-García, Ovidio; Picinelli-Lobo, Anna

    2016-01-01

    The effect of different treatments involving contact with natural lees on the aromatic profile of cider has been evaluated. Comparing with the untreated ciders, the contact with lees brought about a significant increase of the concentrations of most of the volatile compounds analysed, in particular fatty acids, alcohols, ethyl esters and 3-ethoxy-1-propanol. The opposite was observed among fusel acetate esters and 4-vinylguaiacol. The addition of β-glucanase enhanced the increase of ethyl octanoate, but produced a decrease in the contents of decanoic acid and all of the major volatiles excepting acetaldehyde, ethyl acetate and acetoine, whereas the application of oxygen influenced the rise of the level of 3-ethoxy-1-propanol only. The olfactometric profiles also revealed significant effects of the treatment with lees for ethyl propionate, diacetyl, cis-3-hexenol, acetic acid, benzyl alcohol, and m-cresol, while the addition of oxygen significantly influenced the perception of ethyl hexanoate, 1-octen-3-one, 3-methyl-2-butenol, t-3-hexenol and c-3-hexenol. Copyright © 2015 Elsevier Ltd. All rights reserved.

  15. [Montana MOYOCO Invasive Species Strike Team Final Report 2013] Benton Lake Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  16. [Montana MOYOCO Invasive Species Strike Team Final Report 2012] Benton Lake Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  17. [Montana MOYOCO Invasive Species Strike Team Final Report 2014] Northwest Montana Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  18. [Montana MOYOCO Invasive Species Strike Team Final Report 2016] Lost Trail National Wildlife Refuge, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  19. [Montana MOYOCO Invasive Species Strike Team Final Report 2014] Lost Trail National Wildlife Refuge, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO MT Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  20. [Montana MOYOCO Invasive Species Strike Team Final Report 2013] Lost Trail National Wildlife Refuge, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  1. [Montana MOYOCO Invasive Species Strike Team Final Report 2015] Lost Trail National Wildlife Refuge, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  2. [Montana MOYOCO Invasive Species Strike Team Final Report 2011] Northwest Montana Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  3. [Montana MOYOCO Invasive Species Strike Team Final Report 2015] Northwest Montana Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  4. [Montana MOYOCO Invasive Species Strike Team Final Report 2014] Benton Lake Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  5. [Montana MOYOCO Invasive Species Strike Team Final Report 2012] Northwest Montana Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  6. [Montana MOYOCO Invasive Species Strike Team Final Report 2015] Benton Lake Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  7. [Montana MOYOCO Invasive Species Strike Team Final Report 2016] Benton Lake Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  8. [Montana MOYOCO Invasive Species Strike Team Final Report 2016] Northwest Montana Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  9. [Montana MOYOCO Invasive Species Strike Team Final Report 2011] Northeast Montana Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  10. [Montana MOYOCO Invasive Species Strike Team Final Report 2012] Northeast Montana Wetland Management District, Benton Lake & Lee Metcalf ISST

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The MOYOCO (MT) Invasive Species Strike Team is made up of two field strike teams, housed at Benton Lake and Lee Metcalf National Wildlife Refuges, yet administered...

  11. 78 FR 77508 - Duke Energy Carolinas, LLC; William States Lee III Nuclear Station, Units 1 and 2; Combined...

    Science.gov (United States)

    2013-12-23

    ... From the Federal Register Online via the Government Publishing Office NUCLEAR REGULATORY COMMISSION Duke Energy Carolinas, LLC; William States Lee III Nuclear Station, Units 1 and 2; Combined Licenses Application Review AGENCY: Nuclear Regulatory Commission. ACTION: Final environmental impact...

  12. H-NST induces LEE expression and the formation of attaching and effacing lesions in enterohemorrhagic Escherichia coli.

    Directory of Open Access Journals (Sweden)

    Jonathan A Levine

    Full Text Available Enteropathogenic E. coli (EPEC and enterohemorrhagic E. coli are important causes of morbidity and mortality worldwide. These enteric pathogens contain a type III secretion system (T3SS responsible for the attaching and effacing (A/E lesion phenotype. The T3SS is encoded by the locus of enterocyte effacement (LEE pathogenicity island. The H-NS-mediated repression of LEE expression is counteracted by Ler, the major activator of virulence gene expression in A/E pathogens. A regulator present in EPEC, H-NST, positively affects expression of H-NS regulon members in E. coli K-12, although the effect of H-NST on LEE expression and virulence of A/E pathogens has yet-to-be determined.We examine the effect of H-NST on LEE expression and A/E lesion formation on intestinal epithelial cells. We find that H-NST positively affects the levels of LEE-encoded proteins independently of ler and induces A/E lesion formation. We demonstrate H-NST binding to regulatory regions of LEE1 and LEE3, the first report of DNA-binding by H-NST. We characterize H-NST mutants substituted at conserved residues including Ala16 and residues Arg60 and Arg63, which are part of a potential DNA-binding domain. The single mutants A16V, A16L, R60Q and the double mutant R60Q/R63Q exhibit a decreased effect on LEE expression and A/E lesion formation. DNA mobility shift assays reveal that these residues are important for H-NST to bind regulatory LEE DNA targets. H-NST positively affects Ler binding to LEE DNA in the presence of H-NS, and thereby potentially helps Ler displace H-NS bound to DNA.H-NST induces LEE expression and A/E lesion formation likely by counteracting H-NS-mediated repression. We demonstrate that H-NST binds to DNA and identify arginine residues that are functionally important for DNA-binding. Our study suggests that H-NST provides an additional means for A/E pathogens to alleviate repression of virulence gene expression by H-NS to promote virulence capabilities.

  13. The Effect of Selected Cleaning Techniques on Berkshire Lee Marble: A Scientific Study at Philadelphia City Hall

    Science.gov (United States)

    Mossotti, Victor G.; Eldeeb, A. Raouf; Fries, Terry L.; Coombs, Mary Jane; Naude, Virginia N.; Soderberg, Lisa; Wheeler, George S.

    2002-01-01

    This report describes a scientific investigation of the effects of eight different cleaning techniques on the Berkshire Lee marble component of the facade of the East Center Pavilion at Philadelphia City Hall; the study was commissioned by the city of Philadelphia. The eight cleaning techniques evaluated in this study were power wash (proprietary gel detergent followed by water rinse under pressure), misting (treatment with potable, nebulized water for 24-36 hours), gommage (proprietary Thomann-Hanry low-pressure, air-driven, small-particle, dry abrasion), combination (gommage followed by misting), Armax (sodium bicarbonate delivered under pressure in a water wash), JOS (dolomite powder delivered in a low-pressure, rotary-vortex water wash), laser (thermal ablation), and dry ice (powdered-dry-ice abrasion delivered under pressure). In our study approximately 160 cores were removed from the building for laboratory analysis. We developed a computer program to analyze scanning-electron-micrograph images for the microscale surface roughness and other morphologic parameters of the stone surface, including the near-surface fracture density of the stone. An analysis of more than 1,100 samples cut from the cores provided a statistical basis for crafting the essential elements of a reduced-form, mixed-kinetics conceptual model that represents the deterioration of calcareous stone in terms of self-organized soiling and erosion patterns. This model, in turn, provided a basis for identifying the variables that are affected by the cleaning techniques and for evaluating the extent to which such variables influence the stability of the stone. The model recognizes three classes of variables that may influence the soiling load on the stone, including such exogenous environmental variables as airborne moisture, pollutant concentrations, and local aerodynamics, and such endogenous stone variables as surface chemistry and microstructure (fracturing, roughness, and so on). This study

  14. 'Items for criticism (not in sequence)': Joseph DeLee, Pare Lorentz and The Fight for Life (1940).

    Science.gov (United States)

    Gainty, Caitjan

    2017-09-01

    In the late 1920s, the American obstetrician Joseph DeLee brought the motion-picture camera into the birth room. Following that era's trend of adapting industrial efficiency practices for medical environments, DeLee's films give spectacular and unexpected expression to the engineering concept of 'streamlining'. Accomplishing what more tangible obstetric streamlining practices had failed to, DeLee's cameras, and his post-production manipulation, shifted birth from messy and dangerous to rationalized, efficient, death-defying. This was film as an active and effective medical tool. Years later, the documentarian Pare Lorentz produced and wrote his own birth film, The Fight for Life (1940). The documentary subject of the film was DeLee himself, and the film was set in his hospitals, on the same maternity 'sets' that had once showcased film's remarkable streamlining capacity to give and keep life. Yet relatively little of DeLee was retained in the film's content, resulting in a showdown that, by way of contrast, further articulated DeLee's understanding of film's medical powers and, in so doing, hinted at a more dynamic moment in the history of medicine while speaking also to the process by which that understanding ceased to be historically legible.

  15. Potential of lees from wine, beer and cider manufacturing as a source of economic nutrients: An overview.

    Science.gov (United States)

    Pérez-Bibbins, B; Torrado-Agrasar, A; Salgado, J M; Oliveira, R Pinheiro de Souza; Domínguez, J M

    2015-06-01

    Lees are the wastes generated during the fermentation and aging processes of different industrial activities concerning alcoholic drinks such as wine, cider and beer. They must be conveniently treated to avoid uncontrolled dumping which causes environmental problems due to their high content of phenols, pesticides, heavy metals, and considerable concentrations of nitrogen, phosphate and potassium as well as high organic content. The companies involved must seek alternative environmental and economic physicochemical and biological treatments for their revalorization consisting in the recovery or transformation of the components of the lees into high value-added compounds. After describing the composition of lees and market of wine, beer and cider industries in Spain, this work aims to review the recent applications of wine, beer and cider lees reported in literature, with special attention to the use of lees as an endless sustainable source of nutrients and the production of yeast extract by autolysis or cell disruption. Lees and/or yeast extract can be used as nutritional supplements with potential exploitation in the biotechnological industry for the production of natural compounds such as xylitol, organic acids, and biosurfactants, among others.

  16. Unitarity and Lee-Wick prescription at one loop level in the effective Myers-Pospelov electrodynamics: The e++e- annihilation

    Science.gov (United States)

    Reyes, Carlos M.; Urrutia, L. F.

    2017-01-01

    We study perturbative unitarity in a Lorentz-symmetry-violating QED model with higher-order derivative operators in the light of the results of Lee and Wick to preserve unitarity in indefinite metric theories. Specifically, we consider the fermionic sector of the Myers-Pospelov model, which includes dimension-five operators, coupled to standard photons. We canonically quantize the model, paying attention to its effective character, and show that its Hamiltonian is stable, emphasizing the exact stage at which the indefinite metric appears and decomposes into a positive-metric sector and a negative-metric sector. Finally, we verify the optical theorem at the one-loop level in the annihilation channel of the forward-scattering process e+(p2,r )+e-(p1,s ) by applying the Lee-Wick prescription, in which the states associated with the negative metric are left out from the asymptotic Hilbert space, but nevertheless are considered in the loop integration via the propagator.

  17. Traumer og kunst : et psykoanalytisk blikk på Mara Lees Ladies

    OpenAIRE

    Heimen, Birgitte Susanne

    2010-01-01

    Studieobjektet mitt har vært Mara Lees roman Ladies, utgitt på Albert Bonniers forlag i 2007. Min lesning plasserer romanen innenfor sjangeren traumenarrativer. Jeg har valgt å belyse romanen med psykoanalytisk teori, og har benyttet meg av tanker av Sigmund Freud, Jacques Lacan og Julia Kristeva. Videre ses romanen i lys av nyere teorier om traumer og litteratur, av blant andre Cathy Caruth, Deborah Horvitz og Laurie Vickroy. Mitt fokus har vært konsentrert rundt traumet som l...

  18. "Times of Terror: Discourse, Temporality and the War on Terror", de Lee Jarvis

    Directory of Open Access Journals (Sweden)

    Aureo de Toledo Gomes

    2011-01-01

    Full Text Available


    Resenha do livro "Times of Terror: Discourse, Temporality and the War on Terror", de Lee Jarvis

  19. Award for Distinguished Contributions of Applications of Psychology to Education and Training: Cindy Lee Juntunen.

    Science.gov (United States)

    2016-11-01

    The Award for Distinguished Contributions of Applications of Psychology to Education and Training acknowledges psychologists who contribute to new teaching methods or solutions to learning problems through the use of research findings or evidence-based practices. The 2016 recipient is Cindy Lee Juntunen. She is recognized for "her steadfast commitment to the training of future counseling psychologists, for her leadership in key national organizations focused on education and training, and for her contributions to training competencies and practice guidelines within counseling psychology." Juntunen's award citation, biography, and a selected bibliography are presented here. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

  20. Extended Friedberg-Lee hidden symmetries, quark masses,and CP violation with four generations

    Energy Technology Data Exchange (ETDEWEB)

    Bar-Shalom, S.; Soni, A.; Oaknin, D.

    2009-07-16

    Motivated in part by the several observed anomalies involving CP asymmetries of B and B{sub s} decays, we consider the standard model with a 4th sequential family (SM4) which seems to offer a rather simple resolution. We initially assume T-invariance by taking the up and down-quark 4 x 4 mass matrix to be real. Following Friedberg and Lee (FL), we then impose a hidden symmetry on the unobserved (hidden) up and down-quark SU(2) states. The hidden symmetry for four generations ensures the existence of two zero-mass eigenstates, which we take to be the (u,c) and (d,s) states in the up and down-quark sectors, respectively. Then, we simultaneously break T-invariance and the hidden symmetry by introducing two phase factors in each sector. This breaking mechanism generates the small quark masses m{sub u}, m{sub c} and m{sub d}, m{sub s}, which, along with the orientation of the hidden symmetry, determine the size of CP-violation in the SM4. For illustration we choose a specific physical picture for the hidden symmetry and the breaking mechanism that reproduces the observed quark masses, mixing angles and CP-violation, and at the same time allows us to further obtain very interesting relations/predictions for the mixing angles of t and t'. For example, with this choice we get V{sub td} {approx} (V{sub cb}/V{sub cd}-V{sub ts}/V{sub us}) + O({lambda}{sup 2}) and V{sub t'b}{approx}V{sub t'd{sm_bullet}}(V{sub cb}/V{sub cd}), V{sub tb'}V{sub t'd{sm_bullet}}(V{sub ts}/V{sub us}), implying that V{sub t'd} > V{sub t'b}, V{sub tb'}. We furthermore find that the Cabibbo angle is related to the orientation of the hidden symmetry and that the key CP-violating quantity of our model at high energies, J{sub SM4} {triple_bond} Im(V{sub tb}V{sub t'b*}V{sub t'b{prime}}V{sub tb'*}), which is the high-energy analogue of the Jarlskog invariant of the SM, is proportional to the light-quark masses and the measured Cabibbo

  1. The contributions of Donald Lee Johnson to understanding the Quaternary geologic and biogeographic history of the California Channel Islands

    Science.gov (United States)

    Muhs, Daniel R.

    2013-01-01

    Over a span of 50 years, native Californian Donald Lee Johnson made a number of memorable contributions to our understanding of the California Channel Islands. Among these are (1) recognizing that carbonate dunes, often cemented into eolianite and derived from offshore shelf sediments during lowered sea level, are markers of glacial periods on the Channel Islands; (2) identifying beach rock on the Channel Islands as the northernmost occurrence of this feature on the Pacific Coast of North America; (3) recognizing of the role of human activities in historic landscape modification; (4) identifying both the biogenic and pedogenic origins of caliche “ghost forests” and laminar calcrete forms on the Channel Islands; (5) providing the first soil maps of several of the islands, showing diverse pathways of pedogenesis; (6) pointing out the importance of fire in Quaternary landscape history on the Channel Islands, based on detailed stratigraphic studies; and (7), perhaps his greatest contribution, clarifying the origin of Pleistocene pygmy mammoths on the Channel Islands, due not to imagined ancient land bridges, but rather the superb swimming abilities of proboscideans combined with lowered sea level, favorable paleowinds, and an attractive paleovegetation on the Channel Islands. Don was a classic natural historian in the great tradition of Charles Darwin and George Gaylord Simpson, his role models. Don’s work will remain important and useful for many years and is an inspiration to those researching the California Channel Islands today.

  2. Economic value of angling on the Colorado River at Lees Ferry: Using secondary data to estimate the influence of seasonality

    Science.gov (United States)

    Bair, Lucas S.; Rogowski, David L.; Neher, Chris

    2016-01-01

    Glen Canyon Dam (GCD) on the Colorado River in northern Arizona provides water storage, flood control, and power system benefits to approximately 40 million people who rely on water and energy resources in the Colorado River basin. Downstream resources (e.g., angling, whitewater floating) in Glen Canyon National Recreation Area (GCNRA) and Grand Canyon National Park are impacted by the operation of GCD. The GCD Adaptive Management Program was established in 1997 to monitor and research the effects of dam operations on the downstream environment. We utilized secondary survey data and an individual observation travel cost model to estimate the net economic benefit of angling in GCNRA for each season and each type of angler. As expected, the demand for angling decreased with increasing travel cost; the annual value of angling at Lees Ferry totaled US$2.7 million at 2014 visitation levels. Demand for angling was also affected by season, with per-trip values of $210 in the summer, $237 in the spring, $261 in the fall, and $399 in the winter. This information provides insight into the ways in which anglers are potentially impacted by seasonal GCD operations and adaptive management experiments aimed at improving downstream resource conditions.

  3. Erwin Bünning and Tony Lees, two giants of chronobiology, and the problem of time measurement in insect photoperiodism.

    Science.gov (United States)

    Saunders, D S

    2005-06-01

    This paper examines the views of Erwin Bünning and Tony Lees on the mechanism of photoperiodic time measurement, the former advocating a circadian basis for the phenomenon and the latter a non-circadian hourglass-like timer. This difference in opinion led to a protracted split among workers on photoperiodism, some supporting an oscillatory clock and others an "hourglass", and gave rise to the often stated opinion that the two forms of time measurement were mutually exclusive. This paper, however, suggests that both oscillatory and hourglass-like properties are to be seen in insect photoperiodism. Furthermore, the differences between the two apparently conflicting models may be resolved if, following Bünning, "hourglasses" are regarded as damping circadian oscillators, with the more self-sustained (clearly oscillatory) and more highly damped (hourglass-like) responses being parts of a continuous series. Since circadian rhythmicity is an all-pervading and fundamental aspect of insect biology, currently opening up to genetic and molecular analysis, recognition of the basic similarity of a wide range of insect photoperiodic timers may help to unravel the biochemical nature of the mechanism(s) involved.

  4. South Korean Government under the former CEO, President Lee Myung-bak

    Directory of Open Access Journals (Sweden)

    Eunsook Yang

    2008-10-01

    Full Text Available Tras un prometedor inicio gracias a su arrolladora victoria en diciembre del 2007 y portando un mandato para llevar a cabo profundas reformas económicas, el presidente Lee Myung-bak se ha visto obligado a recuperar la confianza de su ciudadanía tras las duras críticas a numerosos aspectos de su política: la importación de carne vacuna bajo el Tratado de Libre Comercio EEUU-Corea del Sur pendiente de aprobación, sus ambiciosos proyectos de construcción, su agenda de privatizaciones y su estilo algo autoritario. Las características de su política exterior resultan interesantes por los contrastes con su predecesor: refuerzo de la alianza con los EEUU, mejora de las relaciones con Japón, mayor dinamismo en su diplomacia energética hacia Rusia, mayor envergadura a su relación con China y una postura más firme hacia Corea del Norte. Sin embargo Lee Myung-bak ha de superar el desafío que la crisis económica mundial le presenta y así poder restaurar la situación económica de su país.

  5. Automatically correlating clinical findings and body locations in radiology reports using MedLEE.

    Science.gov (United States)

    Sevenster, Merlijn; van Ommering, Rob; Qian, Yuechen

    2012-04-01

    In this paper, we describe and evaluate a system that extracts clinical findings and body locations from radiology reports and correlates them. The system uses Medical Language Extraction and Encoding System (MedLEE) to map the reports' free text to structured semantic representations of their content. A lightweight reasoning engine extracts the clinical findings and body locations from MedLEE's semantic representation and correlates them. Our study is illustrative for research in which existing natural language processing software is embedded in a larger system. We manually created a standard reference based on a corpus of neuro and breast radiology reports. The standard reference was used to evaluate the precision and recall of the proposed system and its modules. Our results indicate that the precision of our system is considerably better than its recall (82.32-91.37% vs. 35.67-45.91%). We conducted an error analysis and discuss here the practical usability of the system given its recall and precision performance.

  6. Simultaneous determination of prenylflavonoid and hop bitter acid in beer lee by HPLC-DAD-MS.

    Science.gov (United States)

    Kao, T H; Wu, G Y

    2013-11-15

    An HPLC-DAD-MS method with high accuracy and precision was developed for determination of prenylflavonoids and hop bitter acids in beer lee, a by-product from beer brewing process. Four prenylflavonoids and nine hop bitter acids can be simultaneously separated in 29 min using a Thermo HyPURITY C18 column in combination with diode array dectector and mass spectrometer with HPLC solvent gradient system of phosphoric acid aqueous solution at pH 1.6 and acetonitrile at a flow rate of 1.5 mL/min and detection wavelength at 314 nm. Beer lee is found to contain isoxanthohumol (36.2 μg/g), xanthohumol (29.6 μg/g), 8-prenylnaringenin (7.84 μg/g), 6-prenylnaringenin (19.2 μg/g), cohumulone (44.7 μg/g), humulone (123 μg/g), adhumulone (21.8 μg/g), colupulone (44.2 μg/g), lupulone (33.2 μg/g), and adlupulone (5.76 μg/g).

  7. Vitis vinifera L. cv Pinot noir pomace and lees as potential sources of bioactive compounds.

    Science.gov (United States)

    Reis, Gabriel M; Faccin, Henrique; Viana, Carine; Rosa, Marcelo Barcellos da; de Carvalho, Leandro M

    2016-11-01

    Food and agricultural industries generate substantial quantities of phenolic-rich by-products that could be valuable natural sources of antioxidants. The aim of this study was to identify and quantify the phenolic compounds and radical scavenging activities of two by-products (pomace and lees) from Vitis vinifera L. cv Pinot noir. We found a different distribution of phenolic classes (flavanols, flavonols, phenolic acids and stilbenes) and singular scavenging activity against free radicals (hydroxyl, superoxide and peroxyl radicals). The major class of phenolics in pomace was flavanols and in lees was flavonols, with catechin (117.9 ± 2.5 μg g(-1)) and quercetin (42.4 ± 1.2 μg g(-1)) being the most abundant individual compounds. We also found high potential on scavenging activity against superoxide radicals in pomace (80% of scavenging activity) and radical peroxyl (67% scavenging activity). These results show the possibility of using Pinot noir by-products as promising additives or as a source for the development of new products in different segments of the food and cosmetic industries.

  8. Electricity generation using white and red wine lees in air cathode microbial fuel cells

    Science.gov (United States)

    Pepe Sciarria, Tommy; Merlino, Giuseppe; Scaglia, Barbara; D'Epifanio, Alessandra; Mecheri, Barbara; Borin, Sara; Licoccia, Silvia; Adani, Fabrizio

    2015-01-01

    Microbial fuel cell (MFC) is a useful biotechnology to produce electrical energy from different organic substrates. This work reports for the first time results of the application of single chamber MFCs to generate electrical energy from diluted white wine (WWL) and red wine (RWL) lees. Power obtained was of 8.2 W m-3 (262 mW m-2; 500 Ω) and of 3.1 W m-3 (111 mW m-2; 500Ω) using white and red wine lees, respectively. Biological processes lead to a reduction of chemical oxygen (TCOD) and biological oxygen demand (BOD5) of 27% and 83% for RWL and of 90% and 95% for WWL, respectively. These results depended on the degradability of organic compounds contained, as suggest by BOD5/TCOD of WWL (0.93) vs BOD5/TCOD of RWL (0.33), and to the high presence of polyphenols in RWL that inhibited the process. Coulombic efficiency (CE) of 15 ± 0%, for WWL, was in line with those reported in the literature for other substrates, i.e. CE of 14.9 ± 11.3%. Different substrates led to different microbial consortia, particularly at the anode. Bacterial species responsible for the generation of electricity, were physically connected to the electrode, where the direct electron transfer took place.

  9. Density of Zeros on the Lee-Yang circle obtained from magnetization data of a two-dimensional Ising ferromagnet

    OpenAIRE

    Binek, Ch.

    1998-01-01

    In order to provide an experimental access to the statistical theory of Lee and Yang (1952) the density function g(theta) of zeros on the Lee-Yang circle has been determined for the first time by analyzing isothermal magnetization data, m(H), of the Ising ferromagnet FeCl2 in axial magnetic fields, H, at temperatures 34 < T < 99K. The validity of our approach is demonstrated by the perfect agreement of magnetic specific heat data as calculated from g(theta) and m(H) via Maxwells relation, res...

  10. Friedberg-Lee symmetry and tribimaximal neutrino mixing in the inverse seesaw mechanism

    Science.gov (United States)

    Chan, Aik Hui; Low, Hwee Boon; Xing, Zhi-Zhong

    2009-10-01

    The inverse seesaw mechanism with three pairs of gauge-singlet neutrinos offers a natural interpretation of the tiny masses of three active neutrinos at the TeV scale. We combine this picture with the newly proposed Friedberg-Lee (FL) symmetry in order to understand the observed pattern of neutrino mixing. We show that the FL symmetry requires only two pairs of the gauge-singlet neutrinos to be massive, implying that one active neutrino must be massless. We propose a phenomenological ansatz with broken FL symmetry and exact μ-τ symmetry in the gauge-singlet neutrino sector, and obtain the tribimaximal neutrino mixing pattern by means of the inverse seesaw relation. We demonstrate that nonunitary corrections to this result can possibly reach the percent level, and a soft breaking of μ-τ symmetry can give rise to CP violation in such a TeV-scale seesaw scenario.

  11. Research on cruciferous vegetables, indole-3-carbinol, and cancer prevention: A tribute to Lee W. Wattenberg.

    Science.gov (United States)

    Fujioka, Naomi; Fritz, Vincent; Upadhyaya, Pramod; Kassie, Fekadu; Hecht, Stephen S

    2016-06-01

    Lee W. Wattenberg, who spent his entire career at the University of Minnesota, was a true pioneer in the field of chemoprevention. This paper is a tribute to his groundbreaking research which uncovered the cancer prevention properties of many dietary compounds, including those discussed here in some detail-indole-3-carbinol and diindolylmethane. These compounds occur as glucosinolate conjugates in cruciferous vegetables and are released when one chews or otherwise macerates the vegetable. They have numerous beneficial effects including the ability to prevent cancer in laboratory animals treated with carcinogens. We review some of the early work on indole-3-carbinol and diindolylmethane which spurred subsequent studies on their efficacy and molecular mechanisms of prevention. We also present unique data on field conditions that affect levels of their glucosinolate precursors in vegetables and on the release of diindolylmethane in people who consume cruciferous vegetables.

  12. Functional renormalization group approach to the Yang-Lee edge singularity

    Energy Technology Data Exchange (ETDEWEB)

    An, X. [Department of Physics, University of Illinois at Chicago,845 W. Taylor St., Chicago, IL 60607 (United States); Mesterházy, D. [Albert Einstein Center for Fundamental Physics, University of Bern,Sidlerstrasse 5, 3012 Bern (Switzerland); Stephanov, M.A. [Department of Physics, University of Illinois at Chicago,845 W. Taylor St., Chicago, IL 60607 (United States)

    2016-07-08

    We determine the scaling properties of the Yang-Lee edge singularity as described by a one-component scalar field theory with imaginary cubic coupling, using the nonperturbative functional renormalization group in 3≤d≤6 Euclidean dimensions. We find very good agreement with high-temperature series data in d=3 dimensions and compare our results to recent estimates of critical exponents obtained with the four-loop ϵ=6−d expansion and the conformal bootstrap. The relevance of operator insertions at the corresponding fixed point of the RG β functions is discussed and we estimate the error associated with O(∂{sup 4}) truncations of the scale-dependent effective action.

  13. Friedberg-Lee symmetry and tri-bimaximal neutrino mixing in the inverse seesaw mechanism

    CERN Document Server

    Chan, Aik Hui; Xing, Zhi-zhong

    2009-01-01

    The inverse seesaw mechanism with three pairs of gauge-singlet neutrinos offers a natural interpretation of the tiny masses of three active neutrinos at the TeV scale. We combine this picture with the newly-proposed Friedberg-Lee (FL) symmetry in order to understand the observed pattern of neutrino mixing. We show that the FL symmetry requires only two pairs of the gauge-singlet neutrinos to be massive, implying that one active neutrino must be massless. We propose a phenomenological ansatz with broken FL symmetry and exact \\mu-\\tau symmetry in the gauge-singlet neutrino sector and obtain the tri-bimaximal neutrino mixing pattern by means of the inverse seesaw relation. We demonstrate that non-unitary corrections to this result are possible to reach the percent level and a soft breaking of \\mu-\\tau symmetry can give rise to CP violation in such a TeV-scale seesaw scenario.

  14. Vernon Lee in the Vatican: the uneasy alliance of aestheticism and archaeology.

    Science.gov (United States)

    Evangelista, Stefano

    2009-01-01

    From the 1800s onward, aesthetic critics attempted to free the study of ancient Greek art from the frameworks of institutional education and professionalized criticism. In this process, aestheticism entered an uneasy alliance with archaeology, a discipline that was likewise challenging traditional modes of classical learning practiced in public schools and the old universities. In "The Child in the Vatican" (1881), Vernon Lee -- writing under the influence of Pater and from a position of cosmopolitan female amateurism -- examines the uses of archaeological science in the study of classical art. Her analysis of the sculptures of the Niobe Group at once relies on the archaeological method and asks readers to doubt scientific approaches to art that dim the sublime power of the art object.

  15. Lee Kovacs, The Haunted Screen : Ghosts in Literature and Film.

    Directory of Open Access Journals (Sweden)

    Anne Luyat

    2006-03-01

    Full Text Available Entre le fantôme littéraire et sa représentation cinématographique, au cœur des espaces très différents hantés par l’un et par l’autre, Lee Kovacs nous donne rendez‑vous. Une analyse minutieuse des transformations qui ont lieu dès que le fantôme quitte les pages du livre pour passer à l’écran est au cœur de l’essai, qui révèle la faiblesse des spectres contemporains par rapport à ceux d’antan. Au départ, le lecteur a le plaisir de retrouver une vieille connaissance, le lémure de Cathy qui han...

  16. General Robert E. Lee (1807-70) and Philanthropist George Peabody (1795-1869) at White Sulphur Springs, West Virginia, July 23-Aug. 30, 1869.

    Science.gov (United States)

    Parker, Franklin; Parker, Betty J.

    This paper discusses the chance meeting at White Sulphur Springs (West Virginia) of two important public figures, Robert E. Lee and George Peabody, whose rare encounter marked a symbolic turn from Civil War bitterness toward reconciliation and the lifting power of education. The paper presents an overview of Lee's life and professional and…

  17. Assessment of pomegranate wine lees as a valuable source for the recovery of (poly)phenolic compounds.

    Science.gov (United States)

    Mena, Pedro; Ascacio-Valdés, Juan A; Gironés-Vilaplana, Amadeo; Del Rio, Daniele; Moreno, Diego A; García-Viguera, Cristina

    2014-02-15

    Wine lees are the residue formed at the bottom of recipients containing wine after fermentation and are mainly composed of yeast. They can be applied for the recovery of value-added phytochemicals owing to the ability of yeast to form molecular interactions with (poly)phenolic compounds. This study aimed to evaluate the potential use of lees obtained as by-products after winemaking of pomegranate (Punica granatum L.) juice. Pomegranate wine lees showed high both phenolic content (about 30 mg GAE/g dry matter) and antioxidant capacity by DPPH and ABTS(+) assays. The phytochemical screening of this by-product by UHPLC-ESI-MS(n) allowed the identification of up to 39 chemicals, being hydrolysable tannins and anthocyanins the predominant structures. Ellagic acid and gallic acid were present in high amounts. In addition, mineral composition was also assessed. Overall, pomegranate wine lees resulted in a promising source for the recovery of bioactive polyphenols with potential applications in different industrial fields.

  18. Q & A with Ed Tech Leaders: Interview with Curtis J. Bonk, Mimi Miyoung Lee, Thomas C. Reeves, & Thomas H. Reynolds

    Science.gov (United States)

    Viner, Mark; Gardner, Ellen; Shaughnessy, Michael F.

    2016-01-01

    Curtis J. Bonk, is Professor of Instructional Systems Technology at Indiana University and President of CourseShare. Mimi Miyoung Lee is Associate Professor in the Department of Curriculum and instruction at the University of Houston. Thomas C. Reeves is Professor Emeritus of Learning, Design, and Technology at the University of Georgia. Thomas H.…

  19. Does the level of expressed emotion (LEE) questionnaire have the same factor structure for adolescents as it has for adults?

    NARCIS (Netherlands)

    Hale, William W.; Raaijmakers, Quinten A. W.; Gerlsma, Coby; Meeus, Wim

    2007-01-01

    Background The level of expressed emotion (LEE) is a four-factor questionnaire that measures expressed emotion (EE) as perceived by the recipient. These factors are: perceived lack of emotional support, perceived intrusiveness, perceived irritation, and perceive criticism. The four factors of the LE

  20. Lee Iacocca and the Generation of Myth in the Spokesman Advertising Campaign for Chrysler from 1980-1984.

    Science.gov (United States)

    Thorpe, Judie Mosier

    Applying knowledge of myth to the milieu of commercial television programming, this paper focuses on the way myth was generated in an advertising campaign that featured Lee Iacocca, chief executive officer of Chrysler Corporation, during the period of 1979-1982, when Chrysler moved from the edge of bankruptcy to financial stability. After…

  1. Lee Silverman Voice Treatment for People with Parkinson's: Audit of Outcomes in a Routine Clinic

    Science.gov (United States)

    Wight, Sheila; Miller, Nick

    2015-01-01

    Background: Speaking louder/more intensely represents a longstanding technique employed to manage voice and intelligibility changes in people with Parkinson's. This technique has been formalized into a treatment approach and marketed as the Lee Silverman Voice Treatment (LSVT®) programme. Evidence for its efficacy has been published. Studies…

  2. 77 FR 14032 - John H. Chafee Coastal Barrier Resources System; Lee County, FL, and Newport County, RI...

    Science.gov (United States)

    2012-03-08

    ... by Lee County, and 1 restaurant. The Service's assessment of 2011 aerial imagery estimates that the... Unit FL-70P. A new discrete segment is proposed for inclusion within Unit FL-70P to add lands owned by the Gasparilla Island Conservation and Improvement Association. This new discrete segment is located...

  3. A MacWilliams type identity for m-spotty generalized Lee weight enumerators over $\\mathbb{Z}_q$ q

    CERN Document Server

    Ozen, Mehmet

    2012-01-01

    Burst errors are very common in practice. There have been many designs in order to control and correct such errors. Recently, a new class of byte error control codes called spotty byte error control codes has been specifically designed to fit the large capacity memory systems that use high-density random access memory (RAM) chips with input/output data of 8, 16, and 32 bits. The MacWilliams identity describes how the weight enumerator of a linear code and the weight enumerator of its dual code are related. Also, Lee metric which has attracted many researchers due to its applications. In this paper, we combine these two interesting topics and introduce the m-spotty generalized Lee weights and the m-spotty generalized Lee weight enumerators of a code over Z q and prove a MacWilliams type identity. This generalization includes both the case of the identity given in the paper [I. Siap, MacWilliams identity for m-spotty Lee weight enumerators, Appl. Math. Lett. 23 (1) (2010) 13-16] and the identity given in the pa...

  4. Lee Library Association, Final Performance Report for Library Services and Construction Act (LSCA) Title VI, Library Literacy Program.

    Science.gov (United States)

    Dalheim, Zoe; Mauke, Martha

    The Lee Library Association conducted a project that involved recruitment, public awareness, training, rural oriented, basic literacy, collection development, tutoring, computer assisted services, and English as a Second Language (ESL) programs. The project served a community of 25,000-50,000 people, and targeted the homeless, learning disabled,…

  5. 77 FR 34285 - Safety Zone; 2012 Ironman U.S. Championship Swim, Hudson River, Fort Lee, NJ

    Science.gov (United States)

    2012-06-11

    ... the January 17, 2008, issue of the Federal Register (73 FR 3316). Public Meeting We do not plan now to... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; 2012 Ironman U.S. Championship Swim, Hudson... vicinity of Englewood Cliffs and Fort Lee, NJ for the 2012 Ironman U.S. Championship swim event....

  6. Lee Silverman Voice Treatment for People with Parkinson's: Audit of Outcomes in a Routine Clinic

    Science.gov (United States)

    Wight, Sheila; Miller, Nick

    2015-01-01

    Background: Speaking louder/more intensely represents a longstanding technique employed to manage voice and intelligibility changes in people with Parkinson's. This technique has been formalized into a treatment approach and marketed as the Lee Silverman Voice Treatment (LSVT®) programme. Evidence for its efficacy has been published. Studies…

  7. Effects of an Extended Version of the Lee Silverman Voice Treatment on Voice and Speech in Parkinson's Disease

    Science.gov (United States)

    Spielman, Jennifer; Ramig, Lorraine O.; Mahler, Leslie; Halpern, Angela; Gavin, William J.

    2007-01-01

    Purpose: The present study examined vocal SPL, voice handicap, and speech characteristics in Parkinson's disease (PD) following an extended version of the Lee Silverman Voice Treatment (LSVT), to help determine whether current treatment dosages can be altered without compromising clinical outcomes. Method: Twelve participants with idiopathic PD…

  8. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, C. LEE COOK DIVISION, DOVER CORPORATION, STATIC PAC (TM) SYSTEM, PHASE II REPORT

    Science.gov (United States)

    The Environmental Technology Verification report discusses the technology and performance of the Static Pac System, Phase II, natural gas reciprocating compressor rod packing manufactured by the C. Lee Cook Division, Dover Corporation. The Static Pac System is designed to seal th...

  9. The Different Mask of Lee’s Command, April 1861-June 1862: The Preparation of a Commander

    Science.gov (United States)

    1991-03-15

    There has not been sunshine enough since my arrival to dry my clothes. But the worst of the rain is, that the ground has become so saturated with water...All do agree, however, that Lee was deeply religious and served a personal and Calvanistic God. For him, "life was only a preparation for eternity

  10. 76 FR 79228 - Combined Licenses at William States Lee III Nuclear Station Site, Units 1 and 2; Duke Energy...

    Science.gov (United States)

    2011-12-21

    ... From the Federal Register Online via the Government Publishing Office NUCLEAR REGULATORY COMMISSION Combined Licenses at William States Lee III Nuclear Station Site, Units 1 and 2; Duke Energy Carolinas, LLC AGENCY: Nuclear Regulatory Commission. ACTION: Draft environmental impact statement; public...

  11. Application of the Time-Dependent Mild-Slope Equations for the Simulation of Wake Effects in the Lee of a Farm of Wave Dragon Wave Energy Converters

    DEFF Research Database (Denmark)

    Beels, Charlotte; Troch, Peter; Visch, Kenneth De;

    2010-01-01

    in a time-dependent mild-slope equation model by using numerical sponge layers. In this paper the developed WEC implementation is applied to a single Wave Dragon WEC and multiple Wave Dragon WECs. The Wave Dragon WEC is a floating offshore converter of the overtopping type. Two wave reflectors focus...... and reservoir) are simulated as porous structures, exhibiting the same reflection, respectively absorption characteristics as obtained for the prototype Wave Dragon WEC. The wake effects behind a single Wave Dragon WEC are studied in detail for uni- and multidirectional waves. The shadow zone indicating...... the wake effect is decreasing with increasing directional spreading. The wake in the lee of a farm of five Wave Dragon WECs, installed in a staggered grid (3 WECs in the first row and 2 WECs in the second row), is calculated for three in-between distances of respectively D, 2D and 3D, with D the distance...

  12. Impact of Parameterized Lee Wave Drag on the Energy Budget of an Eddying Global Ocean Model

    Science.gov (United States)

    2013-08-26

    ten- sor can be calculated from Tðx;yÞ¼ qN ð2pÞ2 R dkdljPðk; lÞj k2 j~kj qN ð2pÞ2 R dkdljPðk; lÞj kl j~kj qN ð2pÞ2 R dkdljPðk; lÞj kl j~kj qN ð2pÞ2...linear regres- sion using functions of the velocity potential for linear mountain waves) described in the Appendix of G05 but applied to the syn- thetic

  13. VizieR Online Data Catalog: Abundances and stellar parameters of LAMOST stars (Lee+, 2015)

    Science.gov (United States)

    Lee, Y. S.; Beers, T. C.; Carlin, J. L.; Newberg, H. J.; Hou, Y.; Li, G.; Luo, A.-L.; Wu, Y.; Yang, M.; Zhang, H.; Zhang, W.; Zhang, Y.

    2016-04-01

    By performing a coordinate match with the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST; see DR1 in Luo et al. 2015, cat. V/146) stellar database, we selected stars with LAMOST spectra in common with stars having available spectroscopy from the Apache Point Observatory Galactic Evolution Experiment (APOGEE; Majewski et al. 2015, submitted), the RAdial Velocity Experiment (RAVE; see Kordopatis et al. 2013, cat. III/272), and the Sloan Extension for Galactic Understanding and Exploration (SEGUE; see Yanny et al. 2009, cat. J/AJ/137/4377). The LAMOST Experiment for Galactic Understanding and Exploration (LEGUE) survey is an ongoing spectroscopic survey being conducted with the Guoshoujing telescope in northeast China. This telescope employs a fixed 4-m Schmidt-type reflector with 4000 optical fibers in the focal plane to obtain spectra of astronomical objects in a 5° field of view. The LEGUE and SEGUE surveys have very similar spectral coverage and resolving power (R~1800). The LAMOST stellar targets mostly comprise stars brighter than r100). APOGEE-1 was a sub-survey of SDSS-III, and is now completed. Its extension, APOGEE-2, is presently underway as part of SDSS-IV. The RAVE survey was designed to observe about a million stars in the southern hemisphere, and obtain optical spectra over the wavelength range 8410-8795Å, the region of the CaII triplet, at a resolving power R~7500. SEGUE-1 and SEGUE-2 have employed the SEGUE Stellar Parameter Pipeline (SSPP; Lee et al. 2008, cat. J/AJ/136/2050; Allende Prieto et al. 2008, cat. J/AJ/136/2070; Smolinski et al. 2011, cat. J/AJ/141/89; Lee et al. 2011, cat. J/AJ/141/90) to derive the stellar atmospheric parameters and available elemental abundance ratios. We modified and upgraded SSPP so that it can process the LAMOST stellar spectra and derive the fundamental stellar parameters as well as the α-element abundances ([α/Fe]) and carbon-to-iron ratios ([C/Fe]) for these stars. The derived atmospheric

  14. Level II scour analysis for Bridge 38 (JERITH0020038) on Town Highway 20, crossing the Lee River, Jericho, Vermont

    Science.gov (United States)

    Wild, Emily C.; Degnan, James R.

    1997-01-01

    This report provides the results of a detailed Level II analysis of scour potential at structure JERITH00200038 on Town Highway 20 crossing the Lee River, Jericho, Vermont (figures 1–8). A Level II study is a basic engineering analysis of the site, including a quantitative analysis of stream stability and scour (U.S. Department of Transportation, 1993). Results of a Level I scour investigation also are included in Appendix E of this report. A Level I investigation provides a qualitative geomorphic characterization of the study site. Information on the bridge, obtained from Vermont Agency of Transportation (VTAOT) files, was compiled prior to conducting Level I and Level II analyses and is found in Appendix D. The site is in the Green Mountain section of the New England physiographic province and the Champlain section of the St. Lawrence physiographic province in northwestern Vermont. The 12.9-mi2 drainage area is in a predominantly rural and forested basin. In the vicinity of the study site, the surface cover on the upstream and downstream right overbank is pasture while the immediate banks have dense woody vegetation. The surface cover on the upstream and downstream left overbank is forested. In the study area, the Lee River has an incised, sinuous channel with a slope of approximately 0.02 ft/ft, an average channel top width of 89 ft and an average bank height of 14 ft. The channel bed material ranges from sand to boulder with a median grain size (D50) of 45.9 mm (0.151 ft). The geomorphic assessment at the time of the Level I and Level II site visit on July 2, 1996, indicated that the reach was stable. The Town Highway 20 crossing of the Lee River is a 49-ft-long, one-lane bridge consisting of a steel through truss span (Vermont Agency of Transportation, written communication, December 12, 1995). The opening length of the structure parallel to the bridge face is 44 ft. The bridge is supported by vertical, concrete abutments with wingwalls. The channel is

  15. Morphology of influenza B/Lee/40 determined by cryo-electron microscopy.

    Directory of Open Access Journals (Sweden)

    Garrett Katz

    Full Text Available Cryo-electron microscopy projection image analysis and tomography is used to describe the overall architecture of influenza B/Lee/40. Algebraic reconstruction techniques with utilization of volume elements (blobs are employed to reconstruct tomograms of this pleomorphic virus and distinguish viral surface spikes. The purpose of this research is to examine the architecture of influenza type B virions by cryo-electron tomography and projection image analysis. The aims are to explore the degree of ribonucleoprotein disorder in irregular shaped virions; and to quantify the number and distribution of glycoprotein surface spikes (hemagglutinin and neuraminidase on influenza B. Projection image analysis of virion morphology shows that the majority (∼83% of virions are spherical with an average diameter of 134±19 nm. The aspherical virions are larger (average diameter = 155±47 nm, exhibit disruption of the ribonucleoproteins, and show a partial loss of surface protein spikes. A count of glycoprotein spikes indicates that a typical 130 nm diameter type B virion contains ∼460 surface spikes. Configuration of the ribonucleoproteins and surface glycoprotein spikes are visualized in tomogram reconstructions and EM densities visualize extensions of the spikes into the matrix. The importance of the viral matrix in organization of virus structure through interaction with the ribonucleoproteins and the anchoring of the glycoprotein spikes to the matrix is demonstrated.

  16. Development of digital sideband separating down-conversion for Yuan-Tseh Lee Array

    Science.gov (United States)

    Li, Chao-Te; Kubo, Derek; Cheng, Jen-Chieh; Kuroda, John; Srinivasan, Ranjani; Ho, Solomon; Guzzino, Kim; Chen, Ming-Tang

    2016-07-01

    This report presents a down-conversion method involving digital sideband separation for the Yuan-Tseh Lee Array (YTLA) to double the processing bandwidth. The receiver consists of a MMIC HEMT LNA front end operating at a wavelength of 3 mm, and sub-harmonic mixers that output signals at intermediate frequencies (IFs) of 2-18 GHz. The sideband separation scheme involves an analog 90° hybrid followed by two mixers that provide down-conversion of the IF signal to a pair of in-phase (I) and quadrature (Q) signals in baseband. The I and Q baseband signals are digitized using 5 Giga sample per second (Gsps) analog-to-digital converters (ADCs). A second hybrid is digitally implemented using field-programmable gate arrays (FPGAs) to produce two sidebands, each with a bandwidth of 1.6 GHz. The 2 x 1.6 GHz band can be tuned to cover any 3.6 GHz window within the aforementioned IF range of the array. Sideband rejection ratios (SRRs) above 20 dB can be obtained across the 3.6 GHz bandwidth by equalizing the power and delay between the I and Q baseband signals. Furthermore, SRRs above 30 dB can be achieved when calibration is applied.

  17. Coral diseases near Lee Stocking Island, Bahamas: patterns and potential drivers.

    Science.gov (United States)

    Voss, Joshua D; Richardson, Laurie L

    2006-03-23

    The number of coral diseases, coral species they infect, number of reported cases, and range over which these diseases are distributed have all increased dramatically in the past 3 decades, posing a serious threat to coral reef ecosystems worldwide. While some published studies provide data on the distribution of coral diseases at local and regional levels, few studies have addressed the factors that may drive these distributions. We recorded coral disease occurrence, prevalence, and severity along with temperature, sedimentation, and coral population data (species abundance and colony size) over 2 consecutive summers on reefs near Lee Stocking Island (LSI) in the Bahamas' Exuma Chain. In 2002 a total of 11092 coral colonies (all species present) were examined within a survey area of 9420 m2, and 13 973 colonies within 10 362 m2 in 2003. Similar to other reports, relatively large, framework species including Siderastrea siderea, Colpophyllia natans, and Montastraea annularis, along with the smaller Dichocoenia stokesi, were the species most susceptible to coral disease. Recurring infections were observed on individual colonies from 2002 to 2003, and were more likely for black band disease (BBD) than for either white plague (WP) or dark spots syndrome (DS). In 2002, WP and DS demonstrated clumped distributions, while BBD was randomly distributed. However, in 2003 BBD and WP were clumped. This is the first study, to our knowledge, that quantitatively documents coral disease dynamics on reefs surrounding LSI.

  18. SAR-derived gap jet characteristics in the lee of the Philippine Archipelago

    Science.gov (United States)

    Gierach, M. M.; Graber, H. C.

    2010-12-01

    Gap jets are ubiquitous features that have been the subject of numerous scientific studies regarding flow within the mountain gap, flow over the ocean, and/or jet-induced ocean responses (i.e., SST cooling, chlorophyll-a enhancement, and eddy generation). None of these studies characterized or quantified gap jet scales, such as jet spreading rate, velocity decay rate, and length at which the gap flow becomes fully developed or self-preserving. Instead, theoretical work and experimental studies provide the basis to understand jet characteristic scales and the respective power laws describing jet variation over the open ocean. Such scales and power laws were applied to high-resolution synthetic aperture radar (SAR) winds to assess the validity of the held scales/laws in Philippine Island wind jets. In the lee of the Philippine Archipelago, wind jets are common during the winter monsoon (November-March) season as a result of steady northeasterly winds that interact with volcanic topography. ENVISAT ASAR images from the winter monsoon were obtained and scales/power laws respective to the Philippine mountain gap jets were derived, and compared to the held scales/power laws.

  19. Reconnaissance of Chemical and Physical Characteristics of Selected Bottom Sediments of the Caloosahatchee River and Estuary, Tributaries, and Contiguous Bays, Lee County, Florida, July 20-30, 1998

    Science.gov (United States)

    1999-01-01

    areas of Lee County discharge through stormwater conveyances into the Caloosahatchee River estuary (Tony Pellicer , Natural Resource Manager, Lee County... Pellicer , Tony, Natural Resource Manager, Lee County, Florida, 1999, verbal communication. Seal, Thomas, Florida Department of Environmental...23 24 25 26 2829 30 31 32 33 34 35 38 39 40 40A 41 42 43 44 45 46 47 48 49 50 53 54 55 56 57 58 59 60 7 9 13 27 37 51 52 21 8 Franklin Lock Olga Fort

  20. In the Footsteps of Winckelmann: Vernon Lee in the Roman Galleries at the Fin de Siècle

    DEFF Research Database (Denmark)

    Østermark-Johansen, Lene

    2016-01-01

    of the 1880s Winckelmann features as an authoritative voice of the past on the encounter between the living body and mind of the spectator-critic and the cold, immobile marble of ancient sculpture. Winckelmann’s subjective descriptions of sculpture provoked Lee into thinking about the interrelationship......, the Renaissance or the eighteenth century. This essay discusses her dialogue with the eighteenth-century German antiquarian Johann Joachim Winckelmann (1717-1768) whose writings on ancient sculpture in uenced more than a century of European archaeological and art historical literature. In Lee’s early writings...... between word and image, past and present, with Rome as a cosmopolitan palimpsest of history as a natural backdrop. Her early essays revisit Winckelmannian sites like the Villa Albani and the Vatican as part of her formative education as an art critic, and the essay uncovers this early stage in Lee...

  1. An analytical method of predicting Lee-Kesler-Ploecker binary interaction coefficients: Part 1, For non-polar hydrocarbon mixtures

    Energy Technology Data Exchange (ETDEWEB)

    Sand, J.R.

    1994-12-31

    An analytical method is proposed for finding numerical values of binary interaction coefficients for non-polar hydrocarbon mixtures when the Lee-Kesler (LK) equation of state is applied. The method is based on solving simultaneous equations, which are Ploecker`s mixing rules for pseudocritical parameters of a mixture, and the Lee-Kesler equation for the saturation line. For a hydrocarbon mixture, the method allows prediction of {kappa}{sub ij} interaction coefficients (ICs) which are close to values obtained by processing experimental p-v-t data on the saturation line and subsequent averaging. For mixtures of hydrocarbon molecules containing from 2 to 9 carbon atoms, the divergence between calculated and experimentally based ICs is no more than {plus_minus}0.4%. The possibility of extending application of this method to other non-polar substances is discussed.

  2. Development and Validation of a Screening Scale for Depression in Korea: The Lee and Rhee Depression Scale

    OpenAIRE

    Hwang, Seon Hee; Rhee, Min Kyu; Kang, Rhee Hun; Lee, Hwa Young; Ham, Byung Joo; Lee, Young Sun; Lee, Min Soo

    2012-01-01

    Objective The aim of this study was to develop a culturally sensitive instrument that addressed how individuals express and experience depression to detect this disorder in Koreans. We also assessed the validity, reliability, and diagnostic utility of this scale (Lee and Rhee Depression Scale; LRDS). Methods The sample consisted of 3,697 normal adults selected from 12 administrative districts (Do) and 448 Korean patients diagnosed with depression using the Structured Clinical Interview for DS...

  3. Enhanced Scalar Concentrations and Fluxes in the Lee of Forest Patches: A Large-Eddy Simulation Study

    Science.gov (United States)

    Kanani-Sühring, Farah; Raasch, Siegfried

    2017-02-01

    By means of large-eddy simulation, we investigate the transport of a passive scalar in the lee of forest patches under neutral atmospheric conditions in flat terrain. We found a pronounced local enhancement of scalar concentration and scalar flux in the lee zone of the forest, while further downstream above the unforested surface, the scalar transport adjusted to an equilibrium with the underlying surface conditions. By means of a term-by-term analysis of the scalar transport equation, we determined the local accumulation of the scalar to be caused by the convergence of: (1) mean and turbulent streamwise transport, (2) mean vertical transport. However, the relative importance of each transport mechanism for the accumulation process was found to depend strongly on forest density. Based on systematic parameter changes, we found concentrations to significantly increase with increasing forest density and with decreasing wind speed, while fluxes were invariant to wind speed and showed a similar relation to forest density as for the concentrations. Despite the scalar sources—ground and/or canopy sources—a local flux enhancement was present in the lee zone. Finally, we provide a first step towards localizing enhanced concentrations and fluxes at micrometeorological sites.

  4. Lee Silverman voice treatment versus standard NHS speech and language therapy versus control in Parkinson's disease (PD COMM pilot): study protocol for a randomized controlled trial

    National Research Council Canada - National Science Library

    Sackley, Catherine M; Smith, Christina H; Rick, Caroline; Brady, Marian C; Ives, Natalie; Patel, Ramilla; Roberts, Helen; Dowling, Francis; Jowett, Sue; Wheatley, Keith; Patel, Smitaa; Kelly, Debbie; Sands, Gina; Clarke, Carl

    2014-01-01

    .... Currently there is no preferred approach to speech and language therapy within the NHS and there is little evidence for the effectiveness of standard NHS therapy or Lee Silverman voice treatment...

  5. From ingestion to colonization: the influence of the host environment on regulation of the LEE encoded type III secretion system in enterohaemorrhagic Escherichia coli

    Directory of Open Access Journals (Sweden)

    James P R Connolly

    2015-06-01

    Full Text Available Enterohaemorrhagic Escherichia coli (EHEC binds to host tissue and intimately attaches to intestinal cells using a dedicated type III secretion system (T3SS. This complex multi-protein organelle is encoded within a large pathogenicity island called the locus of enterocyte effacement (LEE, which is subject to extensive regulatory control. Over the past 15 years we have gained a wealth of knowledge concerning how the LEE is regulated transcriptionally by specific, global and phage encoded regulators, but more recently, significant advances have been made in our understanding of how specific signals, including host or microbiota derived metabolic products and various nutrient sources, can affect how the LEE encoded T3SS is regulated. In this review we discuss transcriptional regulation of the LEE in EHEC, focusing on how these physiologically relevant signals are sensed and how they affect the expression of this major virulence factor. The implications for understanding the disease process by specific regulatory mechanisms are also discussed.

  6. From ingestion to colonization: the influence of the host environment on regulation of the LEE encoded type III secretion system in enterohaemorrhagic Escherichia coli.

    Science.gov (United States)

    Connolly, James P R; Finlay, B Brett; Roe, Andrew J

    2015-01-01

    Enterohaemorrhagic Escherichia coli (EHEC) binds to host tissue and intimately attaches to intestinal cells using a dedicated type III secretion system (T3SS). This complex multi-protein organelle is encoded within a large pathogenicity island called the locus of enterocyte effacement (LEE), which is subject to extensive regulatory control. Over the past 15 years we have gained a wealth of knowledge concerning how the LEE is regulated transcriptionally by specific, global and phage encoded regulators. More recently, significant advances have been made in our understanding of how specific signals, including host or microbiota derived metabolic products and various nutrient sources, can affect how the LEE-encoded T3SS is regulated. In this review we discuss regulation of the LEE, focusing on how these physiologically relevant signals are sensed and how they affect the expression of this major virulence factor. The implications for understanding the disease process by specific regulatory mechanisms are also discussed.

  7. The administration of long-term high-fat diet in ovariectomized wistar rat (Study on Daily Food Intake, Lee Index, Abdominal Fat Mass and Leptin Serum Levels

    Directory of Open Access Journals (Sweden)

    Dita Fitriani

    2016-12-01

    Conclusion: Serum leptin levels positively correlated with Lee index and abdominal fat mass, but negatively correlated with daily food intake. Administration of long-term high-fat diet in this study cannot induce leptin resistance.

  8. "Embodiment as procedures: Physical cleansing changes goal priming effects": Correction to Dong and Lee (2017).

    Science.gov (United States)

    2017-06-01

    Reports an error in "Embodiment as procedures: Physical cleansing changes goal priming effects" by Ping Dong and Spike W. S. Lee (Journal of Experimental Psychology: General, 2017[Apr], Vol 146[4], 592-605). In the article, the following F-value and p-values in the Results section of Experiment 3 were set incorrectly: The p-value p=.925 should be p=.922. The F- and p-values F(1, 201)=.011, p=.916 should be F(1, 201) .014, p= .906. (The following abstract of the original article appeared in record 2017-14922-010.) Physical cleansing reduces the influence of numerous psychological experiences, such as guilt from immoral behavior, dissonance from free choice, and good/bad luck from winning/losing. How do these domain-general effects occur? We propose an integrative account of cleansing as an embodied procedure of psychological separation. By separating physical traces from a physical target object (e.g., detaching dirt from hands), cleansing serves as the embodied grounding for the separation of psychological traces from a psychological target object (e.g., dissociating prior experience from the present self). This account predicts that cleansing reduces the accessibility of psychological traces and their consequences for judgments and behaviors. Testing these in the context of goal priming, we find that wiping one's hands (vs. not) decreases the mental accessibility (Experiment 1), behavioral expression (Experiment 2), and judged importance (Experiments 3-4) of previously primed goals (e.g., achievement, saving, fitness). But if a goal is primed after cleansing, its importance gets amplified instead (Experiment 3). Based on the logic of moderation-of-process, an alternative manipulation that psychologically separates a primed goal from the present self produces the same effects, but critically, the effects vanish once people wipe their hands clean (Experiment 4), consistent with the notion that cleansing functions as an embodied procedure of psychological separation

  9. Estimación y proyección de la mortalidad para Costa Rica con la aplicación del método Lee-Carter con dos variantes

    Directory of Open Access Journals (Sweden)

    Eduardo Aguilar Fernández

    2013-07-01

    Full Text Available RESUMENEl modelo de Lee y Carter ha sido aplicado para realizar estimaciones de la mortalidad en Costa Rica durante el período 1970-2010, y estas a su vez permiten hacer proyecciones que contribuyen al estudio del curso de la mortalidad en nuestra sociedad. Los datos del estudio corresponden a las tasas anuales de mortalidad, definidas para cada sexo y grupo de edad correspondientes al período 1970-2010. La incorporación de las variantes del modelo ha generado dos familias de estimaciones para la estimación de la esperanza de vida, mientras que las proyecciones muestran comportamientos muy similares que revelan valores mayores a los oficiales. ABSTRACTThe Lee and Carter model has been applied to estimate mortality in Costa Rica between 1970 and 2010 by using two of the variations that have been incorporated to the model. Also, it is expected that these estimates allow making projections that contribute with the study of mortality’s progress in our society. The study's data correspond to annual death rates that are defined for each gender and age group for the period 1970-2010. The incorporation of the model’s variations has generated two sets of estimates that are quite suitable for the estimate of life expectancy. Meanwhile, projections show very similar behaviors which reveal higher values than the official ones.

  10. Evolution of an oceanic anticyclone in the lee of Madeira Island: In situ and remote sensing survey

    Science.gov (United States)

    Caldeira, Rui M. A.; Stegner, Alexandre; Couvelard, Xavier; Araújo, Isabel B.; Testor, Pierre; Lorenzo, Alvaro

    2014-02-01

    Island wakes are areas of a strong eddy activity influencing the availability and transport of organic matter in the ocean which, in turn impact biological productivity. Despite this, eddy formation in the lee of North Atlantic tropical islands is scarcely documented, except for the Canary Islands. Moreover, the occurrence of anticyclones leeward of Madeira has seldom been detected. During the summer of 2011, a multiplatform approach, combining satellite data with in situ measurements, was used to study an anticyclonic eddy generated in the lee of the Madeira Island. The main objective was to confirm recent numerical evidence suggesting that orographically perturbed winds can induce anticyclonic eddies leeward of Madeira, particularly during summer months. The high resolution sampling of the eddy's interior shows a strong downwelling of ≈100 m of the isopycnal layer below the mixed layer, typical of intrathermocline eddies. The 25 km radius of this anticyclonic structure exceeds the local deformation radius by a factor of 2. The vortex Rossby number remained moderate (Ro = 0.26) even if the relative core vorticity reached a finite value (ζ/f = -0.7). The occurrence of strong trade winds (10-15 m s-1) prior to the detection of the first surface eddy signatures (July 2011) concurrent with opposite flowing geostrophic currents, shows that the orographic wind forcing is the main mechanism for generating this mesoscale long-lived eddy. After leaving the shelter of the island, the eddy traveled northwesterly following a perpendicular net Ekman transport pathway at a speed of 5 km/d, for at least 2 months. An interaction with a cyclonic partner generated in the area helped precipitate the northward trajectory. This study presents the first clear evidence of a wind-induced mesoscale anticyclone in the lee of Madeira.

  11. Alice in Wonderland: uma tradução literária em imagens por Suzy Lee

    Directory of Open Access Journals (Sweden)

    Luis Carlos Girão

    2016-10-01

    Full Text Available Em 2015, um dos maiores clássicos da literatura infanto-juvenil moderna, Alice in Wonderland, completou 150 anos de lançamento. A obra-prima do controverso Lewis Carroll já foi traduzida e adaptada nos mais diversos meios de expressão artística. Em 2002, despontando na contemporânea literatura para crianças e jovens, Suzy Lee publicou sua tradução intersemiótica de Alice em livro-imagem. Análoga à ideia de Carroll referente a “um sonho dentro de um sonho”, Lee segue em sua publicação a ideia de “um livro dentro de um livro”, tornando ainda mais clara sua fonte de inspiração para a sua criação/recriação/adaptação. Objetivando realizar uma breve análise das obras literárias de Carroll e Lee, propomos um diálogo com os estudos de Roman Jakobson e os escritos do artista Julio Plaza no que se refere à tradução intersígnica, entre signos do código verbal para o código visual, para as versões de Alice in Wonderland aqui enunciadas. Sugerimos ainda uma aproximação com as ideias de Robert Stam sobre a adaptação literária, no caso da presente proposta, do livro ilustrado para o livro-imagem – narrativa composta por palavras para uma narrativa construída por imagens.

  12. Amino acid residues in the Ler protein critical for derepression of the LEE5 promoter in enteropathogenic E. coli.

    Science.gov (United States)

    Choi, Su-Mi; Jeong, Jae-Ho; Choy, Hyon E; Shin, Minsang

    2016-08-01

    Enteropathogenic E. coli causes attaching and effacing (A/E) intestinal lesions. The genes involved in the formation of A/E lesions are encoded within a chromosomal island comprising of five major operons, LEE1-5. The global regulator H-NS represses the expression of these operons. Ler, a H-NS homologue, counteracts the H-NS-mediated repression. Using a novel genetic approach, we identified the amino acid residues in Ler that are involved in the interaction with H-NS: I20 and L23 in the C-terminal portion of α-helix 3, and I42 in the following unstructured linker region.

  13. El profesor Hugo Biagini lee su artículo "Democracia e indianismo en Latinomérica"

    OpenAIRE

    2013-01-01

    Hugo Biagini lee el artículo "Democracia e indianismo en Latinomérica", de 2010, en el que describe las democracias de la región en el Siglo XX, y dentro del sistema, la situación de las culturas originarias. Hugo BiaginiI: Nació en Buenos Aires en 1938. Es Dr. en Filosofía, docente universitario, investigador del CONICET. Autor de Entre la identidad y la globalización, La Reforma Universitaria. Antecedentes y consecuentes, Utopías juveniles: de la bohemia al Che, La Universidad de La Pl...

  14. Okhee Lee, Cory A. Buxton, James A. Banks (ed.), Diversity and equity in science education: research, policy, and practice

    Science.gov (United States)

    Bannier, Betsy J.

    2015-06-01

    Highly relevant for academic study among K-12 educators and the higher education faculty who train pre-service teachers, Diversity and equity in science education highlights three interrelated issues impacting science education in the United States. First, complicated dynamics related to the large and increasing population of English language learning (ELL) students are discussed. Second, the realities of standardized test scores are comparatively explored, both within and beyond the United States. Third, the politics of accountability in education are vigorously discussed. Okhee Lee and Cory A. Buxton weave through the contexts of politics, education, science, and culture to expand existing discourse about how to best educate our nation's children.

  15. Development of instability and turbulence in overturning lee waves: the map of different scenarios in Re-Pr space

    Science.gov (United States)

    Yakovenko, S. N.

    2016-06-01

    Scenarios of the transition to turbulence in overturning lee waves generated by the two-dimensional obstacle in a stably stratified flow have been explored by visualization of velocity and scalar (density) fields, with analysis of spanwise spectra. The results are obtained by numerical solution of the continuity, Navier-Stokes and scalar equations for stratified fluid with the Boussinesq approximation, for varied Reynolds and Prandtl numbers relating to tank experiments, situations in atmosphere and oceans. Based on the computed data, the dependence of the most unstable perturbation wavelength on Reynolds and Prandtl numbers is derived.

  16. Carmilla e Sabella: em busca de uma identidade feminina em Joseph Sheridan Le Fanu e Tanith Lee

    OpenAIRE

    Campos, Ludmila Rode de [UNESP

    2008-01-01

    Este trabalho teve como objetivo realizar uma análise comparativa entre duas obras literárias que têm como foco a questão da representação literária feminina. Ao analisar os textos Carmilla (1872), de Joseph Sheridan Le Fanu, e Sabella (1980), de Tanith Lee, buscamos apontar alguns traços comuns característicos quanto às descrições das personagens femininas e as posturas que assumem diante da sociedade na qual estão inseridas, a fim de encontrar alguns possíveis aspectos norteadores para a co...

  17. Revealing a Possible Implication by Imposing Lee-Yang Theorem on the Partition Function of the Universe

    CERN Document Server

    Chuang, William Huanshan

    2015-01-01

    The goals of this note are twofold: First, to revisit a mechanism proposed by Ho\\v{r}ava and Minic\\cite{Horava:2000fk} which generates a zero cosmological constant to the Universe based on Boltzmann probability distribution and the Holographic principle, a comparison between the zero cosmological constant and recent observation results is given. Secondly, in order to investigate the possibility of phase-transition phenomena of the Universe, a further study on an exponential class of the partition function of the Universe, which is given by Shaw and Barrow \\cite{Shaw:2011ij,Barrow:2011bs} was provided by investigating the distribution of Lee-Yang zeros are given. The contribution of this paper is that after applying the fundamental theorem of algebra to one action chosen from the exponential class that derived from the Shaw and Barrow's works, the Lee-Yang theorem can be applied to the selected action, meaning that critical phenomena might involve the growth of large-scale structure of the Universe, and the ph...

  18. Thermostatic and rheological responses of DPD fluid to extreme shear under modified Lees-Edwards boundary condition.

    Science.gov (United States)

    Moshfegh, Abouzar; Ahmadi, Goodarz; Jabbarzadeh, Ahmad

    2015-12-01

    Thermodynamic, hydrodynamic and rheological interactions between velocity-dependent thermostats of Lowe-Andersen (LA) and Nosé-Hoover-Lowe-Andersen (NHLA), and modified Lees-Edwards (M-LEC) boundary condition were studied in the context of Dissipative Particle Dynamics method. Comparisons were made with original Lees-Edwards method to characterise the improvements that M-LEC offers in conserving the induced shear momentum. Different imposed shear velocities, heat bath collision/exchange frequencies and thermostating probabilities were considered. The presented analyses addressed an unusual discontinuity in momentum transfer that appeared in form of nonphysical jumps in velocity and temperature profiles. The usefulness of M-LEC was then quantified by evaluating the enhancements in obtained effective shear velocity, effective shear rate, Péclet number, and dynamic viscosity. System exchange frequency (Γ) with Maxwellian heat bath was found to play an important role, in that its larger values facilitated achieving higher shear rates with proper temperature control at the cost of deviation from an ideal momentum transfer. Similar dynamic viscosities were obtained under both shearing modes between LA and NHLA thermostats up to Γ = 10, whilst about twice the range of viscosity (1 %). The main benefits of this modification were to facilitate momentum flow from shear boundaries to the system bulk. In addition, it was found that there exist upper thresholds for imposing shear on the system beyond which temperature cannot be controlled properly and nonphysical jumps reappear.

  19. Large Eddy Simulation of Flow Field Characteristics on Lee of a Small Scale Barchan Dune%小尺度新月形沙丘背风侧流场特性的大涡模拟分析

    Institute of Scientific and Technical Information of China (English)

    周晓斯; 王元; 李志强

    2013-01-01

    The large eddy simulation(LES)on the gas flow field over a simplified experimental reduced-scale barchan dune model was performed with the Smagorinsky SGS model to obtain the turbulent flow field characteristics on lee of the barchan dune more accurately.The wind field turbulent flow modes on the lee with various stoss slope and height of the dune were studied at the same wind velocity.The surface friction coefficient distribution in the lee region was obtained.The length of the recirculation zone and turbulent intensity distribution were discussed.The results show that LES can reveal the lee turbulent flow field characteristics better.The flow field re-attachment distance increases with the stoss slope and the dune height.The turbulence intensity inside the recirculation zone is generally greater than that outside the recirculation zone.The maximum turbulence intensity at the location of lee toe and re-attachment occurs near the surface and increases with the dune height.The maximum turbulence intensity at the location of the central recirculation zone appears at the top of the recirculation zone and increases first and then remains unchanged with an increase in the dune height.%为了准确获得新月形沙丘背风侧湍流流场流动特性,采用基于Smagorinsky的亚格子尺度涡黏模型的大涡模拟(LES)方法,对简化了的实验缩比小尺度沙丘模型绕流气相流场进行了数值研究,模拟了相同来流风速、不同沙丘迎风坡度和高度下背风侧风场的湍流流动模式,获得了背风侧区域地表面摩擦系数分布,比较了回流区长度和湍流强度分布.模拟结果表明:LES方法能较好地揭示背风侧湍流流场特性;流场重附距离随沙丘迎风坡度和高度的增加而增大;背风侧回流区内湍流强度总体上比回流区外大,回流区内沙丘坡脚位置及重附点位置处湍流强度最大值出现在贴近地表附近,随沙丘高度的增加而增大;回流区中部湍流强度

  20. Looking for Asian butch-dykes: exploring filmic representations of East Asian butch-dykes in Donna Lee's Enter the Mullet.

    Science.gov (United States)

    Lin, Hui-Ling

    2009-01-01

    Asian butch-dykes have been overlooked in analyses of Chinese cinema, studies that often concentrate on "feminized" transgender roles. This article examines cinematic representations of Asian butch-dykes through film analysis of Enter the Mullet (2004), a five-minute short, and in-depth interviews with the filmmaker, Donna Lee, a Chinese-Canadian in Vancouver. Lee's film is inspired by Enter the Dragon (1973), starring Bruce Lee, the most recognized icon of Asian masculinity. Combining with the mullet hairstyle, which is often associated with White working-class, the filmmaker introduces viewers to the hybrid masculinity of Asian butch-dykes. The article argues that Asian female masculinity can be a strategic means of destabilizing the hegemony of White-male-middle-class masculinity.

  1. Quality characteristics of reduced-fat frankfurters with pork fat replaced by sunflower seed oils and dietary fiber extracted from makgeolli lees.

    Science.gov (United States)

    Choi, Yun-Sang; Park, Kwaon-Sik; Kim, Hyun-Wook; Hwang, Ko-Eun; Song, Dong-Heon; Choi, Min-Sung; Lee, Soo-Yeon; Paik, Hyun-Dong; Kim, Cheon-Jei

    2013-03-01

    The effects of reducing pork fat levels from 30% to 20% by partially substituting pork fat with a mix of sunflower seed oil (0, 5, 10, 15, and 20%) and makgeolli lees fiber (2%) were investigated based on physicochemical properties, textural properties, and sensory characteristics of reduced-fat frankfurters. The moisture and ash content, and lightness were higher in reduced-fat frankfurter samples containing sunflower seed oil and makgeolli lees fiber than in the control. The results showed that reduced-fat frankfurter samples with higher sunflower seed oil levels had lower redness and yellowness values, as well as less cooking loss, emulsion stability, hardness, springiness, and apparent viscosity. The results of this study show that incorporating sunflower seed oil and makgeolli lees fiber into the formulation successfully reduced animal fat in frankfurters, while improving quality characteristics.

  2. Profiling Radar Observations and Numerical Simulations of a Downslope Wind Storm and Rotor on the Lee of the Medicine Bow Mountains in Wyoming

    Directory of Open Access Journals (Sweden)

    Binod Pokharel

    2017-02-01

    Full Text Available This study describes a downslope wind storm event observed over the Medicine Bow range (Wyoming, USA on 11 January 2013. The University of Wyoming King Air (UWKA made four along-wind passes over a five-hour period over the mountain of interest. These passes were recognized as among the most turbulent ones encountered in many years by crew members. The MacCready turbulence meter aboard the UWKA measured moderate to severe turbulence conditions on each pass in the lee of the mountain range, with eddy dissipation rate values over 0.5 m2/3 s−1. Three rawinsondes were released from an upstream location at different times. This event is simulated using the non-hydrostatic Weather Research and Forecast (WRF model at an inner- domain resolution of 1 km. The model produces a downslope wind storm, notwithstanding some discrepancies between model and rawinsonde data in terms of upstream atmospheric conditions. Airborne Wyoming Cloud Radar (WCR vertical-plane Doppler velocity data from two beams, one pointing to the nadir and one pointing slant forward, are synthesized to obtain a two-dimensional velocity field in the vertical plane below flight level. This synthesis reveals the fine-scale details of an orographic wave breaking event, including strong, persistent downslope acceleration, a strong leeside updraft (up to 10 m·s−1 flanked by counter-rotating vortices, and deep turbulence, extending well above flight level. The analysis of WCR-derived cross-mountain flow in 19 winter storms over the same mountain reveals that cross-mountain flow acceleration and downslope wind formation are difficult to predict from upstream wind and stability profiles.

  3. Tratamento dos distúrbios da voz na doença de Parkinson: o método Lee Silverman Treatment of vocal symptoms in Parkinson's disease: the Lee Silverman method

    Directory of Open Access Journals (Sweden)

    Alice Estevo Dias

    2003-03-01

    Full Text Available Alterações discretas na qualidade da voz e da articulação podem ser observadas em fases relativamente iniciais da doença de Parkinson (DP. As alterações da voz e da fala na DP constituem, em conjunto, o que se denomina disartria hipocinética ou disartrofonia e caracterizam-se por monotonia e redução da intensidade da voz, articulação imprecisa e distúrbios do ritmo. Recentemente, foram relatados resultados favoráveis através de método de tratamento intensivo e dirigido especificamente para o tratamento da voz na DP, denominado Lee Silverman Voice Treatment (LSVT®. O objetivo essencial desse método é aumentar a intensidade vocal através do incremento do esforço fonatório. O presente estudo teve por objetivo a caracterização das anormalidades vocais (qualidade vocal, padrão articulatório e inteligibilidade em um grupo de pacientes com DP e a avaliação da resposta terapêutica obtida pela administração do método Lee Silverman. A comparação dos dados de análise acústica, bem como da análise perceptivo-auditiva nos períodos pré e pós-tratamento mostraram modificações estatisticamente significantes após o tratamento. Embora o padrão articulatório tenha se mantido impreciso, os benefícios obtidos pelo tratamento na melhora da qualidade vocal e, sobretudo, na intensidade vocal favoreceram a qualidade da comunicação oral, reduziram os sintomas negativos e adequaram a qualidade vocal às necessidades pessoais e sociais dos indivíduos.Mild changes in voice quality and articulation of speech may be seen in early phases of Parkinson´s disease (PD. Voice and speech disturbances in PD constitute a hypocinetic dysarthria or dysarthrophonia and are characterized by monotony and reduced intensity of voice, imprecise articulation and disturbances of rhythm. Favorable results with an intensive method (Lee Silverman Voice Treatment for the treatment of voice disturbances in PD were recently reported. The main goal of

  4. Application of rice wine lees protein as beer foam fortifier%黄酒糟蛋白作为啤酒泡沫强化剂的研究

    Institute of Scientific and Technical Information of China (English)

    张传军

    2009-01-01

    In this essay, the rice wine lees protein was used as beer foam fortifier to improve the foaming ability and stability. After adding the protein extracted from rice wine lees, the foaming ability was increased to 3, the foaming ability was enhanced to 410 s and the quality of the foam was excellent.%利用黄酒糟蛋白作为啤酒泡沫强化剂,改善啤酒的起泡性和泡持值,添加后的啤酒起泡性提高到3左右,泡持值增加到410s,泡沫品质高.

  5. Reference models for forming organisational or collaborative pedagogical best practices

    NARCIS (Netherlands)

    Lee, Chien-Sing; Koper, Rob; Kommers, Piet; Hedberg, John

    2008-01-01

    Lee, Chien-Sing, Koper, R., Kommers, P., & Hedberg, John (Eds.) (2008). Reference models for forming organisational or collaborative pedagogical best practices [special issue]. International Journal of Continuing Engineering Education and Life-Long Learning, 18(1).

  6. Book Review: Drexl, J., Lee, N. (2013). Pharmaceutical Innovation, Competition and Patent Law : A Trilateral Perspective. Edward Elgar Publishing

    DEFF Research Database (Denmark)

    Minssen, Timo

    2014-01-01

    or a bibliography of material cited by the respective authors. Also it might perhaps have been beneficial to include some contributions from the pharmaceutical industry, private practice or NGOs. There is of course no doubt that all papers have been written by very competent authors and address real-world issues......This is a review of the recent publication “Pharmaceutical Innovation, Competition and Patent Law – A Trilateral Perspective”, edited by Max Planck Director Josef Drexl and Finnish scholar Nari Lee (Edward Elgar 2013, 322 p., ISBN 978 0 85793 245 7). In summary, I conclude that the editors, who...... with much devotion to facts, details and commercial realities. But additional contributions by the industry or “field workers” would probably have enriched the numerous debates that are placed in such an extraordinarily complex environment at the interface of business realities, competition, technological...

  7. Detergents enhance EspB secretion from Escherichia coli strains harboring the locus for the enterocyte effacement (LEE) gene.

    Science.gov (United States)

    Nakasone, Noboru; Toma, Claudia; Higa, Naomi; Koizumi, Yukiko; Ogura, Yasunori; Suzuki, Toshihiko

    2011-02-01

    The effects of detergents (cholic acid, deoxycholic acid, Triton X-100, and Nonidet P-40) on the secretion of EspB from the locus for enterocyte effacement (LEE) gene-positive Escherichia coli strains were examined. Clinical isolates of eight EPEC strains and seven STEC strains were used to detect EspB after they had been cultivated in Luria-Bertani (LB) broth containing one of the detergents. When the bacteria were cultured in LB broth supplemented with one of the detergents, the amount of EspB produced was increased by 2-32-fold depending on the detergent and the strain used. EspB was detected in all strains when they were cultured in LB broth containing all of the detergents. The results obtained in this study can be applied to immunological diagnostic methods for detecting EspB and also to the production of EspB for research purposes.

  8. Book Review: Drexl, J., Lee, N. (2013). Pharmaceutical Innovation, Competition and Patent Law : A Trilateral Perspective. Edward Elgar Publishing

    DEFF Research Database (Denmark)

    Minssen, Timo

    2014-01-01

    as pharmaceutical companies and regulators. To cut it short: This is an enjoyable, readable and interesting book containing thorough studies of “hot” legal issues in the pharma sector converging in an decisive era for pharmaceutical innovation. It ought to be found in any library that has reserved space for pharma......This is a review of the recent publication “Pharmaceutical Innovation, Competition and Patent Law – A Trilateral Perspective”, edited by Max Planck Director Josef Drexl and Finnish scholar Nari Lee (Edward Elgar 2013, 322 p., ISBN 978 0 85793 245 7). In summary, I conclude that the editors, who...... innovation, and access to health care. Leaving aside these minor formalities I have studied this book with great pleasure and interest. Although I might personally not always fully agree with some of the findings and proposals presented in it, the overall theme of the book indeed reflects the most important...

  9. Stable oxyten and carbon isotope study of recent sediments and cements, Lee Stocking island, Bahamas: Organic vs. inorganic precipitation

    Energy Technology Data Exchange (ETDEWEB)

    Falls, W.F.; Williams, D.F.; Kendall, C.G.St.C.; Dill, R.F. (Univ. of South Carolina, Columbia (USA))

    1990-05-01

    Stable isotope analyses of modern carbonates from the tidal inlet along the north end of Lee Stocking Island indicate a strong correlation of both carbon and oxygen isotope values with grain size. Carbonate samples used in this study include the soft, recently formed outer surface of several large columnar stromatolites, bedded muds from within the tidal channel, and marine hardgrounds from the shallow shoals adjacent to the channel. All samples are predominantly aragonite and were divided into mud-, silt-, and sand-size particles and bleached of organics prior to isotopic analysis. The range in isotopic values for all carbonate samples is 3.3 to 4.6 {per thousand} for {delta}{sup 13}C and {minus}0.3 to {minus}1.4{per thousand} for {delta}{sup 18}O. The {delta}{sup 18}O and {delta}{sup 13}C values of the mud-size aragonite from all of these samples are depleted relative to the silt- and sand-size ooids and peloids and have isotope values lighter than 1.4{per thousand} for {delta}{sup 13}C and 0.8{per thousand} for {delta}{sup 18}O. The {delta}{sup 13}C values for green calcerous algae from the restricted platform behind Lee Stocking are similar to values for the stromatolite mud. {delta}{sup 13}C values for the hardground and channel-based muds are intermediate between the {delta}{sup 13}C values for the calcareous algae, and coarse-grained sediment. These data suggest that the green calcareous algae which fluorish in the restricted platform, are a significant source of aragonite mud in and around the channel but are not the only source.

  10. 沙丘背风侧气流及其沉积类型与意义%Lee-face Airflow, Depositional Types and Its Significance

    Institute of Scientific and Technical Information of China (English)

    哈斯; 王贵勇; 董光荣

    2001-01-01

    Field measurement of surface airflow, sand transport and sedimentary p rocesses on the modern dunes (barchan dune, the main ridges and secondary ridges of networks dune) was conducted in southeastern Tengger Desert, to refine aeoli an cross-strata as an indicator of paleaowind direction. It has been found that the v elocity and direction of lee-side secondary airflow varied with dune morphology and primary wind direction and their interactions. Three types of lee-side seco n dary flow occurred in this example, separated flow, attached flow, and deflected flow. These flow is controlled at least two factors, lee-slop morphology and primary wind direction relative to dune crestline. Separated flow, characterized by lower wind velocity, typically occurred on the dunes with steeper (>20°) lee -slop in the conditions where primary wind direction is perpendicular to dune cres tl ine. Attached flow with higher velocity occurred on the gentle lee slop  (<20 °) . The attached flow could be deflected in the oblique primary wind environment but not deflected in transverse flow conditions. The direction of the lee-side defl ec ted flow is in accordance with the direction of crestline of dunes regardless of the inci dent angle values of oblique wind. Further analysis has also found that the magn itude of lee-side secondary wind velocity is the cosine function of primary wind di r ection relative to dunes, which can be expressed by natural log cosine relations hip:Ul=Uc{K*ln〔cos(I)〕+A}.0lee-slops of dunes with steeper lee-slop controlled by separated flow and avalanching of sands is the only mechanism for lee slop

  11. 李光耀的中国崛起思想探析%A Probe into Lee Kuan Yew's Thought on China's Peaceful Emergence

    Institute of Scientific and Technical Information of China (English)

    仲计水

    2004-01-01

    Lee Kuan Yew has proposed many ideas which include the following aspects: China will become a worldwide economic power with the reform and the open policies, it will take its own road, its hope lies on the youth and it will emerge peacefully. The discussion on his thought will be of real significance in promoting China to learn from him and to emerge peacefully.

  12. 76 FR 16637 - J.N. “Ding” Darling NWR, Lee County, FL; Final Comprehensive Conservation Plan and Finding of No...

    Science.gov (United States)

    2011-03-24

    ... Fish and Wildlife Service J.N. ``Ding'' Darling NWR, Lee County, FL; Final Comprehensive Conservation... impact (FONSI) for the environmental assessment for J.N. ``Ding'' Darling National Wildlife Refuge (NWR... INFORMATION: Introduction With this notice, we finalize the CCP process for J.N. ``Ding'' Darling NWR....

  13. Effects of Intensive Voice Treatment (the Lee Silverman Voice Treatment [LSVT]) on Vowel Articulation in Dysarthric Individuals with Idiopathic Parkinson Disease: Acoustic and Perceptual Findings

    Science.gov (United States)

    Sapir, Shimon; Spielman, Jennifer L.; Ramig, Lorraine O.; Story, Brad H.; Fox, Cynthia

    2007-01-01

    Purpose: To evaluate the effects of intensive voice treatment targeting vocal loudness (the Lee Silverman Voice Treatment [LSVT]) on vowel articulation in dysarthric individuals with idiopathic Parkinson's disease (PD). Method: A group of individuals with PD receiving LSVT (n = 14) was compared to a group of individuals with PD not receiving LSVT…

  14. W3C director Tim Berners-Lee to be Knighted by Queen Elizabeth web inventor recognized for contributions to internet development

    CERN Multimedia

    2003-01-01

    "Tim Berners-Lee, the inventor of the World Wide Web and director of the World Wide Web Consortium (W3C), will be made a Knight Commander, Order of the British Empire (KBE) by Queen Elizabeth" (1/2 page).

  15. The NAG Sensor NagC Regulates LEE Gene Expression and Contributes to Gut Colonization by Escherichia coli O157:H7

    Directory of Open Access Journals (Sweden)

    Josée Harel

    2017-04-01

    Full Text Available Enterohemorrhagic Escherichia coli (EHEC O157:H7 are human pathogens responsible for bloody diarrhea and renal failures. EHEC employ a type 3 secretion system to attach directly to the human colonic epithelium. This structure is encoded by the locus of enterocyte effacement (LEE whose expression is regulated in response to specific nutrients. In this study, we show that the mucin-derived sugars N-acetylglucosamine (NAG and N-acetylneuraminic acid (NANA inhibit EHEC adhesion to epithelial cells through down-regulation of LEE expression. The effect of NAG and NANA is dependent on NagC, a transcriptional repressor of the NAG catabolism in E. coli. We show that NagC is an activator of the LEE1 operon and a critical regulator for the colonization of mice intestine by EHEC. Finally, we demonstrate that NAG and NANA as well as the metabolic activity of Bacteroides thetaiotaomicron affect the in vivo fitness of EHEC in a NagC-dependent manner. This study highlights the role of NagC in coordinating metabolism and LEE expression in EHEC and in promoting EHEC colonization in vivo.

  16. Effects of Intensive Voice Treatment (the Lee Silverman Voice Treatment [LSVT]) on Vowel Articulation in Dysarthric Individuals with Idiopathic Parkinson Disease: Acoustic and Perceptual Findings

    Science.gov (United States)

    Sapir, Shimon; Spielman, Jennifer L.; Ramig, Lorraine O.; Story, Brad H.; Fox, Cynthia

    2007-01-01

    Purpose: To evaluate the effects of intensive voice treatment targeting vocal loudness (the Lee Silverman Voice Treatment [LSVT]) on vowel articulation in dysarthric individuals with idiopathic Parkinson's disease (PD). Method: A group of individuals with PD receiving LSVT (n = 14) was compared to a group of individuals with PD not receiving LSVT…

  17. Application of the time-dependent mild-slope equations for the simulation of wake effects in the lee of a farm of Wave Dragon wave energy converters

    Energy Technology Data Exchange (ETDEWEB)

    Beels, Charlotte; Troch, Peter; De Visch, Kenneth; De Backer, Griet [Ghent University, Department of Civil Engineering, Technologiepark 904, B-9052 Zwijnaarde (Belgium); Kofoed, Jens Peter [Aalborg University, Department of Civil Engineering, Sohngaardsholmsvej 57, DK-9000 Aalborg (Denmark)

    2010-08-15

    Time-dependent mild-slope equations have been extensively used to compute wave transformations near coastal and offshore structures for more than 20 years. Recently the wave absorption characteristics of a Wave Energy Converter (abbreviated as WEC) of the overtopping type have been implemented in a time-dependent mild-slope equation model by using numerical sponge layers. In this paper the developed WEC implementation is applied to a single Wave Dragon WEC and multiple Wave Dragon WECs. The Wave Dragon WEC is a floating offshore converter of the overtopping type. Two wave reflectors focus the incident wave power towards a ramp. The focussed waves run up the ramp and overtop in a water reservoir above mean sea level. The obtained potential energy is converted into electricity when the stored water drains back to the sea through hydro turbines. The wave reflectors and the main body (ramp and reservoir) are simulated as porous structures, exhibiting the same reflection, respectively absorption characteristics as obtained for the prototype Wave Dragon WEC. The wake effects behind a single Wave Dragon WEC are studied in detail for uni- and multidirectional waves. The shadow zone indicating the wake effect is decreasing with increasing directional spreading. The wake in the lee of a farm of five Wave Dragon WECs, installed in a staggered grid (3 WECs in the first row and 2 WECs in the second row), is calculated for three in-between distances of respectively D, 2D and 3D, with D the distance between the tips of the wave reflectors of a single WEC. As a result, a farm of five Wave Dragon WECs installed in a staggered grid with an in-between distance of 2D is preferred, when taking cost and spatial considerations into account. (author)

  18. Mountain Waves in High Resolution Forecast Models: Automated Diagnostics of Wave Severity and Impact on Surface Winds

    Directory of Open Access Journals (Sweden)

    Peter Sheridan

    2017-01-01

    Full Text Available An automated method producing a diagnostic of the severity of lee waves and their impacts on surface winds as represented in output from a high resolution linear numerical model (3D velocities over mountains (3DVOM covering several areas of the U.K. is discussed. Lee waves involving turbulent rotor activity or downslope windstorms represent a hazard to aviation and ground transport, and summary information of this kind is highly valuable as an efficient ‘heads-up’ for forecasters, for automated products or to feed into impact models. Automated diagnosis of lee wave surface effects presents a particular challenge due to the complexity of turbulent zones in the lee of irregular terrain. The method proposed quantifies modelled wind perturbations relative to those that would occur in the absence of lee waves for a given background wind, and diagnoses using it are found to be quite consistent between cases and for different ranges of U.K. hills. A recent upgrade of the operational U.K. limited area model, the U.K. Variable Resolution Model (UKV used for general forecasting at the Met Office means that it now resolves lee waves, and its performance is here demonstrated using comparisons with aircraft- and surface-based observations and the linear model. In the future, automated diagnostics may be adapted to use its output to routinely produce contiguous mesoscale maps of lee wave activity and surface impacts over the whole U.K.

  19. Lee-side flow structures of very low aspect ratio cruciform wing–body configurations

    CSIR Research Space (South Africa)

    Tuling, S

    2013-12-01

    Full Text Available of order 0.025 with taper ratio ˜1 with a length of 11.25D mounted on a 19D tangent ogive body. The numerical simulations were performed using Fluent with the Spalart–Allmaras turbulence model. The Mach numbers simulated were 2.0, 2.5, and 3.0 up to angles...

  20. Considerations in Scale-Modeling of Large Urban Fires

    Science.gov (United States)

    1984-11-15

    is inconsequential and that all molecular transport processes are unimportant). The nondimensional parameters to be preserved between the model and...fuel bed. Parker, Corlett and B. T. Lee [!3] also come to a similar conclusion based * on the following two points. First, in large fires, molecular ...to USDA Forest Service, Prepared by Instituto Nacional "de Tecnica Aeroespacial, Madrid, Spain, (May, 1967). "" 57. S.L. Lee and G.M. Hellman

  1. Scaling behavior of the Heisenberg model in three dimensions.

    Science.gov (United States)

    Gordillo-Guerrero, A; Kenna, R; Ruiz-Lorenzo, J J

    2013-12-01

    We report on extensive numerical simulations of the three-dimensional Heisenberg model and its analysis through finite-size scaling of Lee-Yang zeros. Besides the critical regime, we also investigate scaling in the ferromagnetic phase. We show that, in this case of broken symmetry, the corrections to scaling contain information on the Goldstone modes. We present a comprehensive Lee-Yang analysis, including the density of zeros, and confirm recent numerical estimates for critical exponents.

  2. Drilling, completion, stimulation, and testing of BDM/CNGD Well 3997, Lee District, Calhoun County, West Virginia. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Overbey, W.K. Jr.; Carden, R.S.; Salamy, S.P.; Locke, C.D.; Johnson, H.R.

    1992-03-01

    This report discusses the detailed field operations in drilling, casing, completing, and stimulating the Hunter Bennett No. 3997 well located in Lee District, Calhoun County West Virginia. The project was designed and managed by BDM in cooperation with CNG Development Company. The well was spudded on November 9, 1990, and drilling was completed on December 14, 1990. The well was drilled on an average asmuth of 312 degrees with a total horizontal displacement of 2459 feet. The well was turned to a 90 degree inclination from the vertical over a measured course length of 1216 feet. Approximately 1381 feet of the well had an inclination higher than 86 degrees, while 2179 feet had an inclination greater than 62 degrees. The well was partitioned into five zones for stimulation purposes. Each zone is a little more than 300 feet long. The well was stimulated with nitrogen gas in zones one and two. Early production results are encouraging. The BDM/CNGD horizontal well averaged 147 mcfd of gas over the first week of production and, in week five, began to produce oil at a rate of about 2 bbl/day.

  3. Drilling, completion, stimulation, and testing of BDM/CNGD Well 3997, Lee District, Calhoun County, West Virginia

    Energy Technology Data Exchange (ETDEWEB)

    Overbey, W.K. Jr.; Carden, R.S.; Salamy, S.P.; Locke, C.D.; Johnson, H.R.

    1992-03-01

    This report discusses the detailed field operations in drilling, casing, completing, and stimulating the Hunter Bennett No. 3997 well located in Lee District, Calhoun County West Virginia. The project was designed and managed by BDM in cooperation with CNG Development Company. The well was spudded on November 9, 1990, and drilling was completed on December 14, 1990. The well was drilled on an average asmuth of 312 degrees with a total horizontal displacement of 2459 feet. The well was turned to a 90 degree inclination from the vertical over a measured course length of 1216 feet. Approximately 1381 feet of the well had an inclination higher than 86 degrees, while 2179 feet had an inclination greater than 62 degrees. The well was partitioned into five zones for stimulation purposes. Each zone is a little more than 300 feet long. The well was stimulated with nitrogen gas in zones one and two. Early production results are encouraging. The BDM/CNGD horizontal well averaged 147 mcfd of gas over the first week of production and, in week five, began to produce oil at a rate of about 2 bbl/day.

  4. Lee Sang Gak Telescope (LSGT): A Remotely Operated Robotic Telescope for Education and Research at Seoul National University

    CERN Document Server

    Im, Myungshin; Kim, Kihyun

    2015-01-01

    We introduce the Lee Sang Gak Telescope (LSGT), a remotely operated, robotic 0.43-meter telescope. The telescope was installed at the Siding Spring Observatory, Australia, in 2014 October, to secure regular and exclusive access to the dark sky and excellent atmospheric conditions in the southern hemisphere from the Seoul National University (SNU) campus. Here, we describe the LSGT system and its performance, present example images from early observations, and discuss a future plan to upgrade the system. The use of the telescope includes (i) long-term monitoring observations of nearby galaxies, active galactic nuclei, and supernovae; (ii) rapid follow-up observations of transients such as gamma-ray bursts and gravitational wave sources; and (iii) observations for educational activities at SNU. Based on observations performed so far, we find that the telescope is capable of providing images to a depth of R=21.5 mag (point source detection) at 5-sigma with 15 min total integration time under good observing condi...

  5. 基于Lee-Cater模型的养老保险个人账户缺口研究

    Institute of Scientific and Technical Information of China (English)

    艾蔚

    2012-01-01

    鉴于个人账户计发月数未能体现持续的寿命延长,无论做实的个人账户还是处于空账状态的个人账户,个人账户的计发月数与实际支付月数的差异,都会使得实际支付远远超过个人账户实际或记账累积资金,同时账户资金的可继承性,将进一步扩大个人账户缺口。本文通过Lee-Cater模型预测预期寿命的变化,研究死亡率改进对个人账户缺口的影响,以及死亡率和贴现率对个人账户缺口的共同作用。

  6. Unexpected climatological behavior of MLT gravity wave momentum flux in the lee of the Southern Andes hot spot

    Science.gov (United States)

    Wit, R. J.; Janches, D.; Fritts, D. C.; Stockwell, R. G.; Coy, L.

    2017-01-01

    The Southern Argentina Agile MEteor Radar (SAAMER), located at Tierra del Fuego (53.7°S, 67.7°W), has been providing near-continuous high-resolution measurements of winds and high-frequency gravity wave (GW) momentum fluxes of the mesopause region since May 2008. As SAAMER is located in the lee of the largest seasonal GW hot spot on Earth, this is a key location to study GWs and their interaction with large-scale motions. GW momentum flux climatologies are shown for the first time for this location and discussed in light of these unique dynamics. Particularly, the large eastward GW momentum fluxes during local winter are surprising, as these observations cannot be explained by the direct upward propagation of expected large-amplitude mountain waves (MWs) through the eastward stratospheric jet. Instead, these results are interpreted as secondary GWs propagating away from stratospheric sources over the Andes accompanying MW breaking over the Southern Andes.

  7. Studying the biology of hope: An interview with Lee S. Berk, DrPH, MPH. Interview by Sheldon Lewis.

    Science.gov (United States)

    Berk, Lee S

    2007-01-01

    Dr Lee S. Berk is a pioneering medical researcher studying the neuroendocrine and immune effects of positive emotions. He is an associate professor of Health Promotion and Education, School of Public Health, and associate research professor of Pathology and Human Anatomy, School of Medicine, both at Loma Linda University in Loma Linda, California. Dr Berk is a fellow of the American College of Sports Medicine and the American Association for Integrative Medicine. He is also nationally board certified as a health education specialist and has served as a member of the board of directors for the American College of Lifestyle Medicine in Loma Linda, California. Dr Berk is a member of the editorial board of Advances in Mind Body Medicine. During the Society for Neurosciences' annual 2001 meeting Dr Berk presented and received major media coverage of a landmark paper entitled, "The Anticipation of a Laughter Eustress Event Modulates Mood States Prior to the Actual Humor Experience." More recently Dr Berk presented at the FASEB (Federation of American Societies for Experimental Biology) annual 2006 meeting in the American Physiological Society section another landmark paper entitled, "Beta-Endorphin and HGH Increase are Associated With Both the Anticipation and Experience of Mirthful Laughter," with further major media coverage. Recently, Dr Berk spoke about his work with Sheldon Lewis, editor in chief of Advances.

  8. Quasi-spherical silver nanoparticles: aqueous synthesis and size control by the seed-mediated Lee-Meisel method.

    Science.gov (United States)

    Wan, Yu; Guo, Zhirui; Jiang, Xiaoli; Fang, Kun; Lu, Xiang; Zhang, Yu; Gu, Ning

    2013-03-15

    Silver nanoparticles (AgNPs) are attracting tremendous attention in biomedicine, and their related performances are shape and size-dependent. For biomedical applications, water-soluble AgNPs are necessary. However, aqueous syntheses of AgNPs with controlled shape and size are relatively difficult as the balance between nucleation and growth is hard to regulate. This paper describes a robust method for controllable synthesis of quasi-spherical AgNPs based on the combination of the seed-mediated growth and the Lee-Meisel method by thermal reduction of AgNO(3) with citrate. In the presented method, citrate-stabilized AgNPs with tunable sizes up to 80 nm were achieved through one-step or stepwise growth process using qualified spherical 4 nm AgNPs as starter seeds. Specially, the two main difficulties (formation of nanorods and secondary nucleation during the growth stage) in the previous studies have been effectively overcome by tailoring the experimental parameters such as the reaction temperature and the seed amount, without extra additives, pH adjustment, and laser treatment. The crucial factors that affect the uniformity of the resulting AgNPs are discussed.

  9. Unexpected Climatological Behavior of MLT Gravity Wave Momentum Flux in the Lee of the Southern Andes Hot Spot

    Science.gov (United States)

    DeWit, R. J.; Janches, D.; Fritts, D. C.; Stockwell, R. G.; Coy, L.

    2017-01-01

    The Southern Argentina Agile MEteor Radar (SAAMER), located at Tierra del Fuego (53.7degS, 67.7degW), has been providing near-continuous high-resolution measurements of winds and high-frequency gravity wave (GW) momentum fluxes of the mesopause region since May 2008. As SAAMER is located in the lee of the largest seasonal GW hot spot on Earth, this is a key location to study GWs and their interaction with large-scale motions. GW momentum flux climatologies are shown for the first time for this location and discussed in light of these unique dynamics. Particularly, the large eastward GW momentum fluxes during local winter are surprising, as these observations cannot be explained by the direct upward propagation of expected large-amplitude mountain waves (MWs) through the eastward stratospheric jet. Instead, these results are interpreted as secondary GWs propagating away from stratospheric sources over the Andes accompanying MW breaking over the Southern Andes.

  10. Fourier-Ray Modeling of Short-Wavelength Trapped Lee Waves Observed in Infrared Satellite Imagery Near Jan Mayen

    Science.gov (United States)

    2006-01-20

    strato - spheric mountain-wave turbulence were utilized exten- sively by the U.S. Air Force during Operations Endur- ing Freedom and Iraqi Freedom...research applica- tions, such as the role of mountain waves in accelerating ozone loss chemistry in the Arctic winter stratosphere (e.g., Carslaw et al...event, lasting from 1200 to 1800 UTC. The role of high-cloud decks in obscuring the wave banding patterns also indicates that the banded wave clouds

  11. Hub vortex helical instability as the origin of wake meandering in the lee of a model wind-turbine

    Science.gov (United States)

    Viola, Francesco; Iungo, Giacomo Valerio; Camarri, Simone; Porte-Agel, Fernando; Gallaire, Francois

    2012-11-01

    Wind tunnel measurements were performed for the wake produced by a three-bladed wind turbine immersed in uniform flow. These tests show the presence of a vorticity structure in the near wake region mainly oriented along the streamwise direction, which is denoted as hub vortex. The hub vortex is characterized by oscillations with frequencies lower than the one connected to the rotational velocity of the rotor, which are ascribed to wake meandering by previous works. This phenomenon consists in transversal oscillations of the wind turbine wake, which are excited by the shedding of vorticity structures from the rotor disc acting as a bluff body. In this work temporal and spatial linear stability analyses of a wind turbine wake are performed on a base flow obtained through time-averaged wind tunnel velocity measurements. This study shows that the low frequency spectral component detected experimentally is the result of a convective instability of the hub vortex, which is characterized by a counter-winding single-helix structure. Simultaneous hot-wire measurements confirm the presence of a helicoidal unstable mode of the hub vortex with a streamwise wavenumber roughly equal to the one predicted from the linear instability analysis.

  12. Modelling the factors that influence black Generation Y students' attitudes towards mobile advertising / Kirsty-Lee Sharp

    OpenAIRE

    Sharp, Kirsty-Lee

    2013-01-01

    The rapid growth in mobile communication in South Africa makes it an important new advertising medium, and that is why an understanding of attitudes towards mobile advertising is important. As the most technologically astute generation, the Generation Y cohort (individuals born between 1986 and 2005) represents an important current and future market segment for digital media, including mobile media. In South Africa, black African make up the majority of the Generation Y cohort (hereinafter re...

  13. Lee Pedersen’s work in theoretical and computational chemistry and biochemistry

    Science.gov (United States)

    Pedersen, Lee G

    2011-01-01

    Nature at the lab level in biology and chemistry can be described by the application of quantum mechanics. In many cases, a reasonable approximation to quantum mechanics is classical mechanics realized through Newton’s equations of motion. Dr. Pedersen began his career using quantum mechanics to describe the properties of small molecular complexes that could serve as models for biochemical systems. To describe large molecular systems required a drop-back to classical means and this led surprisingly to a major improvement in the classical treatment of electrostatics for all molecules, not just biological molecules. Recent work has involved the application of quantum mechanics for the putative active sites of enzymes to gain greater insight into the key steps in enzyme catalysis. PMID:21537488

  14. Lee Pedersen’s work in theoretical and computational chemistry and biochemistry

    Institute of Scientific and Technical Information of China (English)

    Lee; G; Pedersen

    2011-01-01

    Nature at the lab level in biology and chemistry can be described by the application of quantum mechanics.In many cases,a reasonable approximation to quantum mechanics is classical mechanics realized through Newton’s equations of motion.Dr.Pedersen began his career using quantum mechanics to describe the properties of small molecular complexes that could serve as models for biochemical systems.To describe large molecular systems required a drop-back to classical means and this led surprisingly to a major improvement in the classical treatment of electrostatics for all molecules,not just biological molecules.Recent work has involved the application of quantum mechanics for the putative active sites of enzymes to gain greater insight into the key steps in enzyme catalysis.

  15. Comparison of total polyphenols content and antioxidant potential of wines from ‘Welschriesling’ and ‘Sauvignon Blanc’ varieties during ageing on fine lees

    Directory of Open Access Journals (Sweden)

    Jasna Lužar

    2016-10-01

    Full Text Available Phenolic compounds are key components of wine, since they contribute to wine characteristics such as colour, astringency and bitterness. They also act like antioxidants, with mechanisms involving free-radical scavenging that could prevent cardiovascular diseases and cancer. The aim of the present work was to compare the obtained results of total polyphenols content and antioxidant potential (AOP of several white wines (welschriesling and sauvignon blanc during ageing on fine lees. The total polyphenols content decreased in average for 16.1 % in welschriesling wines and for 18.7 % in sauvignon blanc wines in the period of three months of wine ageing on lees. In the same period AOP of wines decreased in average for 16.0 % in welschriesling wines and for 8.0 % in sauvignon blanc wines. Expectedly, the samples with added oak chips in grape must had higher antioxidant potential than others.

  16. Samuel Holden Parsons Lee (1772-1863): American physician, entrepreneur and selfless fighter of the 1798 Yellow Fever epidemic of New London, Connecticut.

    Science.gov (United States)

    Mattie, James K; Desai, Sukumar P

    2015-02-01

    Samuel Holden Parsons Lee practised medicine at a time when the germ theory of disease had not yet been proposed and antibiotics remained undiscovered. In 1798 he served selflessly as the only physician in town who was willing to battle the Yellow Fever outbreak of New London, Connecticut. Because he practised at the dawn of the age of patent medicine, unfortunately his name also came to be associated with medical quackery. We argue that his contributions have been grossly underestimated. He compounded and vended medications - including bilious pills and bitters - that were gold standards of the day. Moreover, one preparation for treatment of kidney stones led to his sub-specialization in this field and was met with such success that its sale continued for nearly 100 years after his death. While a talented medical man, Lee also had a knack for business, finding success in trading, whaling and real estate.

  17. Lee et al., Inhibitory Effect and Mechanism of Antiproliferation of Isoatriplicolide Tiglate (PCAC from Paulownia Coreana. Molecules 2012, 17, 5945-5951: A Note Regarding Paulownia coreana.

    Directory of Open Access Journals (Sweden)

    Christophe Wiart

    2013-02-01

    Full Text Available I read with interest the article by Lee et al. entitled “Inhibitory Effect and Mechanism of Antiproliferation of Isoatriplicolide Tiglate (PCAC from Paulownia Coreana” [1]. This article is quite interesting and the authors should be complimented for the significant amount of work they have done. The purpose of this letter is to call attention to the need for some clarification on the name of the plant described in this article. Lee et al. state: “Paulownia coreana has traditionally been used as the medicine and health food in the treatment of cancer and infectious diseases.” and elsewhere: “In fact, many cancer research studies have been conducted using traditional medicinal plants such as P. coreana.” [1].

  18. The Critical Lines of the Yang-Lee Edge Singularities of the Anisotropic Ising Ferromagnets on Square, Triangular and Honeycomb Lattices

    Institute of Scientific and Technical Information of China (English)

    WANG Xian-Zhi

    2001-01-01

    Using the numerical results and some results from the renormalization group theory, we extend our previous approach of determining the Yang-Lee edge singularities of Ising ferromagnets on square, triangular and honeycomb lattices (Phys. Rev. Lett. 78 (1997) 413; Phys. Rev. E56 (1998) 2793; E57 (1998) 5013) and obtain accurate closed-form approximations of the critical lines of anisotropic Ising ferromagnets on these lattices.

  19. Lee Silverman voice treatment versus standard NHS speech and language therapy versus control in Parkinson’s disease (PD COMM pilot): study protocol for a randomized controlled trial

    OpenAIRE

    Sackley, Catherine M.; Smith, Christina H; Rick, Caroline; Brady, Marian C; Ives, Natalie; Patel, Ramilla; Roberts, Helen; Dowling, Francis; Jowett, Sue; Wheatley, Keith; Patel, Smitaa; Kelly, Debbie; Sands, Gina; Clarke, Carl

    2014-01-01

    Background Parkinson’s disease is a common movement disorder affecting approximately 127,000 people in the UK, with an estimated two thirds having speech-related problems. Currently there is no preferred approach to speech and language therapy within the NHS and there is little evidence for the effectiveness of standard NHS therapy or Lee Silverman voice treatment. This trial aims to investigate the feasibility and acceptability of randomizing people with Parkinson’s disease-related speech or...

  20. LEE-CARTER死亡率模型的估计——基于Bayes和SVD方法的比较分析

    Institute of Scientific and Technical Information of China (English)

    罗晓宁; 张华

    2013-01-01

    本文比较分析了Bayes和SVD方法对Lee-Carter模型参数估计的结果.结果显示,由于SVD方法充分提取了样本的信息,所以Bayes方法的估计效果一般 但是.Bayes方法能够给出参数估计的误差和处理奇异值出现的风险.

  1. Maksim Gorky's Influence on Lee Gi-young's Fiction Creation%论高尔基对李箕永小说创作的影响

    Institute of Scientific and Technical Information of China (English)

    金春仙

    2012-01-01

    Maksim Gorky had a great influence on fiction creation of Lee Gi-young, a Korean modern litterateur. According to researches and analysis, Lee Gi-young shared many similarities with Gorky in living experiences such as losing mother in the childhood and living in poverty. Moreover, Tallying with the national salvation movement of Korea at that time in theme, Gorky's works aroused a strong resonance in Lee Gi-young and deeply influenced his fiction creation including creative consciousness, theme, content and writing style.%伟大的俄国无产阶级作家玛克西姆.高尔基对朝鲜现代作家李箕永的小说创作产生了深远的影响。李箕永幼年丧母,生活穷困潦倒,社会经历与高尔基相似,加之高尔基的作品契合朝鲜救亡的时代主题,所以引起李箕永的强烈共鸣,进而影响其创作意识、题材选择、思想内容的倾向性和创作方法等。

  2. Regolith and Environment Science and Oxygen and Lunar Volatile Extraction (RESOLVE): Lunar Advanced Volatile Analysis (LAVA) Integration and Testing - Evaluation of Lee Valve

    Science.gov (United States)

    Bower, Hannah; Cryderman, Kate; Captain, Janine

    2016-01-01

    The Resource Prospector (RP) mission with the Regolith and Environment Science and Oxygen and Lunar Volatile Extraction (RESOLVE) payload will prospect for water within the lunar regolith and provide a proof of concept for In-Situ Resource Utilization (ISRU) techniques, which could be used on future lunar and Martian missions. One system within the RESOLVE payload is the Lunar Advanced Volatiles Analysis (LAVA) subsystem, which consists of a Fluid Sub System (FSS) that transports volatiles to the Gas Chromatograph-Mass Spectrometer (GC-MS) instrument. In order for the FSS to transport precise and accurate amounts of volatiles to the GC-MS instrumentation, high performance valves are used within the system. The focus of this investigation is to evaluate the redesigned Lee valve. Further work is needed to continue to evaluate the Lee valve. Initial data shows that the valve could meet our requirements however further work is required to raise the TRL to an acceptable level to be included in the flight design of the system. At this time the risk is too high to change our baseline design to include these non-latching Lee solenoid valves.

  3. 中国知识分子观念中的李光耀图谱%Tke Ckinese Intellectuals’ Perception of Lee Kuan Yew

    Institute of Scientific and Technical Information of China (English)

    陈纳慧; 何包钢; 刘宏

    2015-01-01

    No matter in Asia or in the West,it is generally accepted that the Lee Kuan Yew version of Singapore dominates people’s perception of Singapore. Is this point of view also popular among the Chinese intellectuals?The articles about Lee Kuan Yew and Singapore from 1963 to 2013 give a“no”answer. Authors of these articles are scholars who are active in the realm of Sino-Singapore relations. The statistic and content analysis of their articles shows that the multi-faceted role of Lee Kuan Yew in both China’s domestic development and in the international a-rena,which leads to his prevailing influence in China,is far beyond his overlap with Singapore. The Chinese ideo-logical landscape regarding Lee Kuan Yew not only tells the story of Lee Kuan Yew and his Singapore,but also re-flects China’s ideological transformation and political rearticulation.%在亚洲以及西方的许多人看来,新加坡与李光耀不可分割,甚至将两者等同。这种观念是否同样流行于中国的知识分子群体?本文所关注的自1963年至2013年有关于李光耀和新加坡的学术文章给出了否定答案。这些学术文本是中新关系领域活跃的中国知识分子群体对于李光耀的观念的载体。对它们的定量统计结果和具体内容解析显示:中国学者对于李光耀的解读并不必然固囿于新加坡的国家框架内,在他们的认知中,李光耀和新加坡的非重合部分呈现出远为丰富和重要的意义。中国知识分子观念中的李光耀图谱不仅勾画了李光耀和新加坡的故事,更折射出中国自身发展的变迁和其精英阶层思考的演进。

  4. On Ang Lee's Films from the Perspective of Criticism of New Historicism%新历史主义批评视域下的李安电影

    Institute of Scientific and Technical Information of China (English)

    米彬彬

    2014-01-01

    李安作为成功的华人导演,在美国电影节频频获奖,本文试图借助新历史主义文化批评理论揭示李安成功的秘诀。并以《少年Pi的奇幻漂流》为例,发现李安从电影题材选取到主题表现都与新历史主义者提出的对主导话语权的“颠覆”与“含纳”存在相似之处。影片中,主人公与老虎相伴的故事可以看作是李安“颠覆”西方人类中心主义下将动物客体化的狭隘思想。但这种“颠覆”却又相当不彻底。最终,“颠覆”还是“含纳”于李安对人类理性的赞美声中。%As a successful Chinese director, Ang Lee frequently wins prizes in American film festivals. This paper attempts to re-veal the secret of Ang Lee's success by means of the critical the-ory of New Historicism. Taking"Life of Pi"as an example, it is found that there are similarities between Ang Lee's selection of themes and expression of topics, and the"subversion"and"in-clusion"dominating the right of discourse proposed by New His-toricism. In the film, the story about the hero accompanied by the tiger can be regarded as Ang Lee's "subversion" of the narrow mindedness of objectifying animals under Western Anthropocen-trism, but the "subversion" is not quite thorough. Finally, the"subversion"is"included"in Ang Lee's praise of human ratio-nality.

  5. Comments on: Further studies of Bolivian crocidolite-Part IV: Fibre width, fibre drift and their relation to mesothelioma induction: Preliminary findings, by Ilgren EB, van Orden DR, Lee RJ, Kamiya YM, Hoskins JA.

    Directory of Open Access Journals (Sweden)

    Corrado Magnani

    2016-03-01

    Full Text Available Comments on: Further studies of Bolivian crocidolite-Part IV: Fibre width, fibre drift and their relation to mesothelioma induction: Preliminary findings, by Ilgren EB, van Orden DR, Lee RJ, Kamiya YM, Hoskins JA.

  6. Staarkleidid / Lee Hanael

    Index Scriptorium Estoniae

    Hanael, Lee

    2008-01-01

    10 maailma kuulsamat kleiti kuulusid Marilyn Monroele, Audrey Hepburnile, printsess Dianale, Vivien Leighle, Tina Turnerile, Julia Robertsile, Liz Hurleyle, Sarah Jessica Parkerile, Keira Knightleyle, Jacqueline Kennedyle

  7. HYDRAULICS, LEE COUNTY, MISSISSIPPI

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Recent developments in digital terrain and geospatial database management technology make it possible to protect this investment for existing and future projects to...

  8. HYDROLOGY, LEE COUNTY, MISSISSIPPI

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Hydrology data include spatial datasets and data tables necessary for documenting the hydrologic procedures for estimating flood discharges for a flood insurance...

  9. HYDROLOGY, LEE COUNTY, TEXAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Hydrology data include spatial datasets and data tables necessary for documenting the hydrologic procedures for estimating flood discharges for a Flood Insurance...

  10. Filament winding cylinders. II - Validation of the process model

    Science.gov (United States)

    Calius, Emilio P.; Lee, Soo-Yong; Springer, George S.

    1990-01-01

    Analytical and experimental studies were performed to validate the model developed by Lee and Springer for simulating the manufacturing process of filament wound composite cylinders. First, results calculated by the Lee-Springer model were compared to results of the Calius-Springer thin cylinder model. Second, temperatures and strains calculated by the Lee-Springer model were compared to data. The data used in these comparisons were generated during the course of this investigation with cylinders made of Hercules IM-6G/HBRF-55 and Fiberite T-300/976 graphite-epoxy tows. Good agreement was found between the calculated and measured stresses and strains, indicating that the model is a useful representation of the winding and curing processes.

  11. Lauren Berlant and Lee Edelman, Sex, Or The Unbearable (Durham: Duke University Press, 2014, pp. 168, ISBN: 9780822355946, £13.99, paperback.

    Directory of Open Access Journals (Sweden)

    Hannah Proctor

    2014-01-01

    Full Text Available 'So few colleges and universities bother to teach human sexuality...so much stigma adheres even to scholarly investigation of sex,' Gayle Rubin lamented in her 1984 essay 'Thinking Sex'. But it was an academic conference on Rubin's work - 'Rethinking Sex', a lavish threeday event, held at the University of Pennsylvania in 2009 - that provided the initial impetus for Lauren Berlant and Lee Edelman to enter into a dialogue on sexuality. The result is Sex, or the Unbearable, published by Duke University Press, the first in a series on queer theory edited by the authors.

  12. Computation and analysis of the instantaneous-discharge record for the Colorado River at Lees Ferry, Arizona : May 8, 1921, through September 30, 2000

    Science.gov (United States)

    Topping, David J.; Schmidt, John C.; Vierra, L.E.

    2003-01-01

    A gaging station has been operated by the U.S. Geological Survey at Lees Ferry, Arizona, since May 8, 1921. In March 1963, Glen Canyon Dam was closed 15.5 miles upstream, cutting off the upstream sediment supply and regulating the discharge of the Colorado River at Lees Ferry for the first time in history. To evaluate the pre-dam variability in the hydrology of the Colorado River, and to determine the effect of the operation of Glen Canyon Dam on the downstream hydrology of the river, a continuous record of the instantaneous discharge of the river at Lees Ferry was constructed and analyzed for the entire period of record between May 8, 1921, and September 30, 2000. This effort involved retrieval from the Federal Records Centers and then synthesis of all the raw historical data collected by the U.S. Geological Survey at Lees Ferry. As part of this process, the peak discharges of the two largest historical floods at Lees Ferry, the 1884 and 1921 floods, were reanalyzed and recomputed. This reanalysis indicates that the peak discharge of the 1884 flood was 210,000?30,000 cubic feet per second (ft3/s), and the peak discharge of the 1921 flood was 170,000?20,000 ft3/s. These values are indistinguishable from the peak discharges of these floods originally estimated or published by the U.S. Geological Survey, but are substantially less than the currently accepted peak discharges of these floods. The entire continuous record of instantaneous discharge of the Colorado River at Lees Ferry can now be requested from the U.S. Geological Survey Grand Canyon Monitoring and Research Center, Flagstaff, Arizona, and is also available electronically at http://www.gcmrc.gov. This record is perhaps the longest (almost 80 years) high-resolution (mostly 15- to 30-minute precision) times series of river discharge available. Analyses of these data, therefore, provide an unparalleled characterization of both the natural variability in the discharge of a river and the effects of dam

  13. Dreams of the Hmong Kingdom: The Quest for Legitimation in French Indochina, 1850- 1960, by Mai Na M. Lee. Madison, University of Wisconsin Press, 2015. 430 pages.

    Directory of Open Access Journals (Sweden)

    Nengher N. Vang

    2015-12-01

    Full Text Available This article provides a book review of Mai Na M. Lee’s Dreams of the Hmong Kingdom: The Quest for Legitimation in French Indochina, 1850-1960. Dreams of the Hmong Kingdom. It highlights the contribution of the book to the historiography of the Hmong and provides a critical assessment of the dichotomous analytical framework that Lee uses to analyze the rivalry between Hmong messianic leaders and Hmong political brokers and the competition between the Ly and Lo clans for paramountcy in French Indochina

  14. IDENTIFICATION OF ODOR SUBSTANCES IN YAMABUSHITAKE MUSHROOM (Hericium erinaceum) CULTURE MEDIA CONTAINING 'SHOCHU' LEES AND STARCH WASTES, AND BASIC STUDIES ON THEIR DISAPPEARANCE

    Science.gov (United States)

    Yamauchi, Masahito; Matsumoto, Hirotaka; Yamada, Masayoshi; Yagi, Fumio; Murayama, Ryou; Yamaguchi, Yoshinori; Yamaguchi, Takashi

    In this study, odor substances from mushroom culture media containing 'shochu' lees and starch wastes were identified and determined. It was apparent that in the media, acetoin, butyric acid and diacetyl were found as main odor substances, and mixed with some other ordor substances to produce unpleasant odor. The main substances disappeared with growth of mycelia. It was not likely that these ordor substances were degraded by extracellular enzymes but suggested that they were degraded by mycelia. Further it was found with the growth of mycelia that odor quality changed from rancid ordor (unpleasant ordor) to mushroom smell (pleasant odor) and the odor index was decreasing.

  15. Comparing SVARs and SEMs : Two models of the UK economy

    NARCIS (Netherlands)

    Jacobs, J.P.A.M.; Wallis, K.F.

    2005-01-01

    The structural vector autoregression (SVAR) and simultaneous equation macroeconometric model (SEM) styles of empirical macroeconomic modelling are compared and contrasted, with reference to two models of the UK economy, namely the long-run structural VAR model of Garratt, Lee, Pesaran and Shin and t

  16. Evaluating the importance of the convex hull in solving the Euclidean version of the traveling salesperson problem: reply to Lee and Vickers (2000).

    Science.gov (United States)

    MacGregor, J N; Ormerod, T C

    2000-10-01

    Lee and Vickers (2000) suggest that the results of MacGregor and Ormerod (1996), showing that the response uncertainty to traveling salesperson problems (TSPs) increases with increasing numbers of nonboundary points, may have resulted as an artifact of constraints imposed in the construction of stimuli. The fact that similar patterns of results have been obtained for our "constrained" stimuli, for a stimulus constructed under different constraints, for 13 randomly generated stimuli, and for random and patterned 48-point problems provides empirical evidence that the results are not artifactual. Lee and Vickers further suggest that, even if not artifactual, the results are in principle limited to arrays of fewer than 50 points and that, beyond this, the total number of points and number of nonboundary points are "diagnostically equivalent." This claim seems to us incorrect, since arrays of any size can be constructed that will permit experimental tests of whether problem difficulty is influenced by the number of nonboundary points, or the total number of points, or both. We present a reanalysis of our original data using hierarchical regression analysis which indicates that both factors may influence problem complexity.

  17. Lee Silverman voice treatment versus standard NHS speech and language therapy versus control in Parkinson's disease (PD COMM pilot): study protocol for a randomized controlled trial.

    Science.gov (United States)

    Sackley, Catherine M; Smith, Christina H; Rick, Caroline; Brady, Marian C; Ives, Natalie; Patel, Ramilla; Roberts, Helen; Dowling, Francis; Jowett, Sue; Wheatley, Keith; Patel, Smitaa; Kelly, Debbie; Sands, Gina; Clarke, Carl

    2014-06-07

    Parkinson's disease is a common movement disorder affecting approximately 127,000 people in the UK, with an estimated two thirds having speech-related problems. Currently there is no preferred approach to speech and language therapy within the NHS and there is little evidence for the effectiveness of standard NHS therapy or Lee Silverman voice treatment. This trial aims to investigate the feasibility and acceptability of randomizing people with Parkinson's disease-related speech or voice problems to Lee Silverman voice treatment or standard speech and language therapy compared to a no-intervention control. The PD COMM pilot is a three arm, assessor-blinded, randomized controlled trial. Randomization will be computer-generated with participants randomized at a ratio of 1:1:1. Participants randomized to intervention arms will be immediately referred to the appropriate speech and language therapist. The target population are patients with a confirmed diagnosis of idiopathic Parkinson's disease who have problems with their speech or voice. The Lee Silverman voice treatment intervention group will receive the standard regime of 16 sessions between 50 and 60 minutes in length over four weeks, with extra home practice. The standard speech and language therapy intervention group will receive a dose determined by patients' individual needs, but not exceeding eight weeks of treatment. The control group will receive standard care with no speech and language therapy input for at least six months post-randomization. Outcomes will be assessed at baseline (pre-randomization) and post- randomization at three, six, and 12 months. The outcome measures include patient-reported voice measures, quality of life, resource use, and assessor-rated speech recordings. The recruitment aim is at least 60 participants over 21 months from 11 sites, equating to at least 20 participants in each arm of the trial. This trial is ongoing and recruitment commenced in May 2012. This study will

  18. Product modelling: '20 years of stalemate'?

    DEFF Research Database (Denmark)

    Galle, Per

    1998-01-01

    In a recent special issue of Design Studies Michael Ramscar, John Lee, and Helen Pain level a severe criticism against a field of research known as product modeling; a criticism that would be rather damaging if it were based on cogent arguments. I shall argue in this paper that it is not....

  19. Predicting Magazine Audiences with a Loglinear Model.

    Science.gov (United States)

    1987-07-01

    important use of e.d. estimates is in media selection ( Aaker 1975; Lee 1962, 1963; Little and Lodish 1969). All advertising campaigns have a budget. It...N.Z. Listener 6061 39.0 4 0 22 References Aaker , D.A. (1975), "ADMOD:An Advertising Decision Model," Journal of Marketing Research, February, 37-45

  20. Reorientando a identidade nacional em Native speaker, de Chang-rae Lee, e O sol se põe em São Paulo, de Bernardo Carvalho

    Directory of Open Access Journals (Sweden)

    Rex P. Nielson

    2014-01-01

    Full Text Available A comparative reading of the novels Native speaker (1995, by the North American writer Chang-rae Lee, and O sol se põe em São Paulo (2007, by Bernardo Carvalho, allows for a reevaluation of how minority identities have been constructed in the two American megalopolises New York and São Paulo. The plotlines of both nove ls hinge on the identity crisis of a second-generation Asian immigrant (from Korea in one case and Japan in the other who is seeking to negotiate his American identity (speaking in hemispheric terms in terms of his family‟s origin and language. However, despite the similar anxieties over assimilation present in both novels, they both reveal significant differences regarding the ways in which the United States and Brazil have responded to cultural difference even as they challenge national myths of inclusi on and belonging.

  1. Baseline well inventory and groundwater-quality data from a potential shale gas resource area in parts of Lee and Chatham Counties, North Carolina, October 2011-August 2012

    Science.gov (United States)

    Chapman, Melinda J.; Gurley, Laura N.; Fitzgerald, Sharon A.

    2014-01-01

    Records were obtained for 305 wells and 1 spring in northwestern Lee and southeastern Chatham counties, North Carolina. Well depths ranged from 26 to 720 feet and yields ranged from 0.25 to 100 gallons per minute. A subset of 56 wells and 1 spring were sampled for baseline groundwaterquality constituents including the following: major ions; dissolved metals; nutrients; dissolved gases (including methane); volatile and semivolatile organic compounds; glycols; isotopes of strontium, radium, methane (if sufficient concentration), and water; and dissolved organic and inorganic carbon. Dissolved methane gas concentrations were low, ranging from less than 0.00007 (lowest reporting level) to 0.48 milligrams per liter. Concentrations of nitrate, boron, iron, manganese, sulfate, chloride, total dissolved solids, and measurements of pH exceeded federal and state drinking water standards in a few samples. Iron and manganese concentrations exceeded the secondary (aesthetic) drinking water standard in approximately 35 to 37 percent of the samples.

  2. Comment on Effects of transverse magnetic field on mixed convection in wall plume of power-law fluids, by Gorla, Lee, Nakamura and Pop, IJES, 1993

    CERN Document Server

    Pantokratoras, Asterios

    2007-01-01

    Comment on Effects of transverse magnetic field on mixed convection in wall plume of power-law fluids, by Rama Subba Reddy Gorla, Jin Kook Lee, Shoichiro Nakamura and Ioan Pop [International Journal of Engineering Science, 31 (1993) 1035-1045]. In the above paper the authors treat the boundary layer mixed convection flow of a power-law fluid along a vertical adiabatic surface in a transverse magnetic field with a steady thermal source at the leading edge. The governing non-similar equations are solved by means of a novel finite difference scheme. However, there are two fundamental errors in this paper and the presented results do not have any practical value.

  3. Use of Parsons-Lee and Onsager theories to predict nematic and demixing behavior in binary mixtures of hard rods and hard spheres.

    Science.gov (United States)

    Cuetos, Alejandro; Martínez-Haya, Bruno; Lago, Santiago; Rull, Luis F

    2007-06-01

    Parsons-Lee and Onsager theories are formulated for the isotropic-nematic transition in a binary mixture of hard rods and hard spheres. Results for the phase coexistence and for the equation of state in both phases for mixtures with different relative sizes and composition are presented. The two theories explain correctly the general behavior observed in experiments and computer simulations for these fluids. In particular, the theory accounts for the destabilization of the nematic phase when spherical or globular macromolecules are added to a system of rodlike colloids, and the entrance of the system into a demixed regime at high volume fractions of the spherical particles. Upon demixing a nematic state rich in rods coexists in equilibrium with an isotropic state much more diluted in the rodlike component. Onsager theory fails on quantitative grounds for aspect ratios of the rodlike molecules smaller than 100, and in the cases where the molar fractions of spheres becomes close to unity. On the contrary, the Parsons-Lee approximation remains accurate down to aspect ratios as small as 5. The spinodal analysis indicates that the isotropic-isotropic and nematic-nematic coexistences become feasible for sufficiently large spheres and long rods, respectively. The latter type of coexistence interferes partially with the isotropic-nematic coexistence regime of interest to the present work. Overall, the study serves to rationalize and control key aspects of the behavior of these binary nematogenic colloidal systems, which can be tuned with an appropriate choice of the relative size and molar fractions of the particles.

  4. A model to localize gauge fields on thick branes

    CERN Document Server

    Chumbes, A E R; Hott, M B

    2011-01-01

    It is shown that the introduction of a suitable function in the higher dimensional gauge field action may be used in order to achieve gauge bosons localization on a thick brane. The model is constructed upon analogies to the effective coupling of neutral scalar field to electromagnetic field and to the Friedberg-Lee model for hadrons.

  5. The study on anti-cariogenicity of rubrus suarissimus S. Lee saponin to streptococcus mutans%甜茶皂甙对变形链*球菌抑龋性的研究

    Institute of Scientific and Technical Information of China (English)

    李莉; 王玉波; 陈岱韻; 李俊福

    2014-01-01

    Objective:To study the inhibition of rubrus suavissimus S. Lee on the cariogenicity of streptococcus mutans . Methods:0. 1 ml streptococcus mutans solution was mixed with rubrus suavissimus S. Lee saponin of different concentra-tion,but the negative control group without rubrus suavissimus S. Lee saponin,and the glass rod was put in for 48 hours, then Each group was measured the OD of the streptococcus mutans on the glass rod. Results:When the concentration of rubrus suarissimus S. Lee Saponin was higher than 0. 625g/ml,the adhering glass rod of Streptococcus Mutans was lower than the negative control group. Conclusion:Rubrus suarissimus S. Lee Saponin could inhibit the streptococcus mutans.%目的:研究甜茶皂甙对变形链球菌致龋性的抑制作用。方法将0.1 ml变形链球菌悬液加入不同浓度的甜茶皂甙溶液的实验组,和无甜茶皂甙的基础液对照组,将玻棒分别插入各支试管培养48 h,将玻棒上黏附的菌细胞洗脱下来,测OD值。结果甜茶皂甙的浓度≥0.625 g/100 ml时,变形链球菌对玻璃棒的黏附低于无甜茶皂甙的对照组。结论甜茶皂甙对变形链球菌黏附抑制作用。

  6. A multivariate assessment of the coral ecosystem health of two embayments on the lee of the island of Hawai'i

    Energy Technology Data Exchange (ETDEWEB)

    Parsons, Michael L. [Marine Science Department, University of Hawai' i at Hilo, Hilo, HI 96720 (United States)], E-mail: mparsons@fgcu.edu; Walsh, William J. [Division of Aquatic Resources, Department of Land and Natural Resources, Kailua-Kona, HI 96740 (United States); Settlemier, Chelsie J.; White, Darla J.; Ballauer, Josh M.; Ayotte, Paula M.; Osada, Kara M. [Marine Science Department, University of Hawai' i at Hilo, Hilo, HI 96720 (United States); Carman, Brent [Division of Aquatic Resources, Department of Land and Natural Resources, Kailua-Kona, HI 96740 (United States)

    2008-06-15

    Four coral-dominated coastal sites within two embayments (Kealakekua Bay and Honokohau Bay) on the lee of the island of Hawai'i were studied to assess evidence of anthropogenic impacts in these relatively pristine locales. Nutrient-loading parameters were analyzed in relation to benthic composition data. Statistically, there were significant positive relationships between nitrate + nitrite, silicate, and ammonium with the abundance of macroalgae, coralline algae, and dead coral, and between {delta}{sup 15}N and dead coral abundance. The north outside site of Kealakekua Bay and the south outside site of Honokohau Bay appear to be most impacted by nutrient-loading factors in each bay, respectively. Comparisons with past nutrient data indicate that nutrient inputs have increased to the two bays, and that early impacts of these increased loadings are evident. It is predicted that at current nutrient-loading rates, the north sites of Kealakekua Bay and the south sites of Honokohau Bay will exhibit evidence of further degradation in future years.

  7. Glucosinolate Accumulation and Related Gene Expression in Pak Choi (Brassica rapa L. ssp. chinensis var. communis [N. Tsen & S.H. Lee] Hanelt) in Response to Insecticide Application.

    Science.gov (United States)

    Zhu, Biao; Yang, Jing; He, Yong; Zang, Yunxiang; Zhu, Zhujun

    2015-11-11

    Glucosinolates and their breakdown products are well-known for their cancer-chemoprotective functions and biocidal activities against pathogens and generalist herbivores. Insecticides are commonly used in the production of pak choi (Brassica rapa L. ssp. chinensis var. communis [N. Tsen & S.H. Lee] Hanelt). We studied the effects of four commonly used insecticides, namely, β-cypermethrin, acephate, pymetrozine, and imidacloprid, on glucosinolate metabolism in pak choi. All insecticides significantly increased both the transcription of glucosinolate biosynthetic genes and the aliphatic and total glucosinolate accumulations in pak choi. β-Cypermethrin and acephate caused gradual and continuous up-regulation of gene expression from 0.5 to 24 h after treatment, whereas pymetrozine and imidacloprid did so more rapidly, reaching a peak at 1 h and returning to normal at 3 h. Our findings indicate that the four insecticides affect glucosinolate metabolism in pak choi plants to various degrees and suggest that glucosinolates may be involved in plant insecticide metabolism.

  8. Time-lapse analysis of methane quantity in Mary Lee group of coal seams using filter-based multiple-point geostatistical simulation

    Science.gov (United States)

    Karacan, C. Özgen; Olea, Ricardo A.

    2013-01-01

    Coal seam degasification and its success are important for controlling methane, and thus for the health and safety of coal miners. During the course of degasification, properties of coal seams change. Thus, the changes in coal reservoir conditions and in-place gas content as well as methane emission potential into mines should be evaluated by examining time-dependent changes and the presence of major heterogeneities and geological discontinuities in the field. In this work, time-lapsed reservoir and fluid storage properties of the New Castle coal seam, Mary Lee/Blue Creek seam, and Jagger seam of Black Warrior Basin, Alabama, were determined from gas and water production history matching and production forecasting of vertical degasification wellbores. These properties were combined with isotherm and other important data to compute gas-in-place (GIP) and its change with time at borehole locations. Time-lapsed training images (TIs) of GIP and GIP difference corresponding to each coal and date were generated by using these point-wise data and Voronoi decomposition on the TI grid, which included faults as discontinuities for expansion of Voronoi regions. Filter-based multiple-point geostatistical simulations, which were preferred in this study due to anisotropies and discontinuities in the area, were used to predict time-lapsed GIP distributions within the study area. Performed simulations were used for mapping spatial time-lapsed methane quantities as well as their uncertainties within the study area.

  9. Anthocyanidins, proanthocyanidins, and anthocyanins profiling in wine lees by solid-phase extraction-liquid chromatography coupled to electrospray ionization tandem mass spectrometry with data-dependent methods.

    Science.gov (United States)

    Delgado de la Torre, M P; Ferreiro-Vera, C; Priego-Capote, F; Luque de Castro, M D

    2013-12-26

    A method has been developed to study the content of anthocyanidins, proanthocyanidicins, and anthocyanins in wine lees, an abundant byproduct from wineries. Detection/quantitation of the target compounds was carried out by a hyphenated system consisting of a solid-phase extraction workstation (Prospekt-2 unit) online coupled to a liquid chromatograph-triple-quadrupole tandem mass spectrometer (LC-MS/MS), where standards were used for identification/quantitation of both anthocyanidins and proanthocyanidins. Owing to the lack of anthocyanins standards, advantages from the use of data-dependent methods were taken for their identification and confirmatory analysis. Combination of the scanning methods (viz. product-ion, precursor-ion, and neutral-loss scanning) allowed identifying five different anthocyanins present in wine residues. The results thus obtained have been validated by complementary analysis of the extracts using LC-TOF/MS in high-resolution mode. Quantitation of the monitored compounds was supported on selected reaction monitoring (SRM) and calibration curves run with standards of anthocyanidins and proanthocyanidins.

  10. Promotion by 5-Aminolevulinic Acid of Germination of Pakchoi (Brassica campestris ssp. chinensis var. communis Tsen et Lee) Seeds Under Salt Stress

    Institute of Scientific and Technical Information of China (English)

    Liang-Ju WANG; Wei-Bing JIANG; Hui LIU; Wei-Qin LIU; Lang KANG; Xi-Lin HOU

    2005-01-01

    The seed germination and seedling growth of pakchoi (Brassica campestris ssp. chinensis var.communis Tsen et Lee cv. Hanxiao) were not significantly inhibited until the concentration of NaCl was increased to150 mmol/L. Treatment of pakchoi seeds with exogenous 5-aminolevulinic acid (ALA), at concentrations ranging from 0.01 to 10.00 mg/L, promoted seed germination when seeds were stressed by salinity, whereas levulinic acid (LA), an inhibitor of ALA dehydrase, significantly inhibited seed germination and seedling growth, suggesting that metabolism of ALA into porphyrin compounds was necessary for seed germination and seedling growth. Determination of respiratory rate during seed germination showed that ALA increased seed respiration under both normal conditions and salt stress. Furthermore, salt stress decreased levels of endogenous ALA, as well as heme, in etiolated seedlings. More salt-tolerant cultivars of pakchoi contained higher relative levels of endogenous ALA and heme under conditions of salt stress.These results indicate that salt stress may inhibit the biosynthesis of endogenous ALA and then heme,which is necessary for seed germination, and treatment of seeds with exogenous ALA prior to germination may be associated with the biosynthesis of heme.

  11. Effects of Elevated Ozone on Stoichiometry and Nutrient Pools of Phoebe Bournei (Hemsl. Yang and Phoebe Zhennan S. Lee et F. N. Wei Seedlings in Subtropical China

    Directory of Open Access Journals (Sweden)

    Jixin Cao

    2016-03-01

    Full Text Available Tropospheric ozone (O3 is considered one of the most critical air pollutants in many parts of the world due to its detrimental effects on plants growth. However, the stoichiometric response of tree species to elevated ozone (O3 is poorly documented. In order to understand the effects of elevated ozone on the stoichiometry and nutrient pools of Phoebe bournei (Hemsl. Yang (P. bourneiand Phoebe zhennan S. Lee et F. N. Wei (P. zhennan, the present study examined the carbon (C, nitrogen (N, and phosphorous (P concentrations, stoichiometric ratios, and stocks in foliar, stem, and root for P. bournei and P. zhennan with three ozone fumigation treatments (Ambient air, 100 ppb and 150 ppb. The results suggest that elevated ozone significantly increased the N concentrations in individual tissues for both of P. bournei and P. zhennan. On the contrary, elevated ozone decreased the C:N ratios in individual tissues for both of P. bournei and P. zhennan because the C concentration remained stable under the ozone stress. The P concentration, and C:P and N:P ratios in individual tissues for both P. bournei and P. zhennan did not exhibit consistent variation tendency with elevated ozone. Elevated ozone sharply reduced the total C, N, and P stocks and altered the pattern of C, N, and P allocation for both P. bournei and P. zhennan. The present study suggests that tropospheric ozone enrichment should be considered an important environmental factor on stoichiometry of tree species.

  12. Crescimento de Hymenaea courbaril L. var. stilbocarpa (Hayne Lee et Lang. e Enterolobium contortisiliquum (Vell. Morong (Leguminosae sob diferentes níveis de sombreamento Growth of Hymenaea courbaril L. var. stilbocarpa (Hayne Lee et Lang. e Enterolobium contortisiliquum (Vell. Morong (Leguminosae under different shading levels

    Directory of Open Access Journals (Sweden)

    Ana Lúcia da Silva Lima

    2010-03-01

    Full Text Available Hymenaea courbaril L. var. stilbocarpa (Hayne Lee et Lang. é uma espécie clímax tolerante a sombra, ao passo que Enterolobium contortisiliquum (Vell. Morong. é uma espécie pioneira. O desenvolvimento destas espécies pode refletir a habilidade de adaptação aos diferentes fatores ambientais (luz, água e temperatura no local em que estão crescendo. O suprimento inadequado de um desses fatores pode reduzir o vigor da planta e limitar seu desenvolvimento. O presente trabalho teve como objetivo avaliar os efeitos do nível de sombreamento no crescimento e a concentração de pigmentos fotossintéticos em duas espécies de leguminosas arbóreas, Hymenaea courbaril L. var. stilbocarpa (Hayne Lee et Lang. e Enterolobium contortisiliquum (Vell. Morong. O experimento foi conduzido no Setor de Olericultura do Centro Universitário Luterano de Ji-Paraná (CEULJI/ULBRA/Rondônia. Durante a formação das mudas, ambas as espécies foram expostas a quatro tratamentos de sombra: 0 % (controle - sol pleno; 30 %; 50 % e 80 %. Cada tratamento foi constituído com três repetições de cada espécie; o delineamento experimental foi inteiramente casualisado. Quatro meses após a semeadura, as seguintes análises foram realizadas: número de folhas, altura da planta, comprimento do sistema radicular, massa seca total e concentração de pigmentos fotossintéticos. O tratamento sob sol pleno afetou negativamente o crescimento de ambas as espécies. As mudas crescidas sob 50% e 80% apresentaram melhor desenvolvimento. Conforme o aumento do sombreamento houve um decréscimo na razão clorofila a/b e um aumento nas concentrações de clorofila total e carotenóides totais.Hymenaea courbaril L. var. stilbocarpa (Hayne Lee et Lang. is a clímax shadow tolerant specie and Enterolobium contortisiliquum (Vell. Morong., by the other hand, is considered as a pioneer specie. The development of these species may reflect its adaptation ability to different environmental

  13. Costo-efectividad de añadir el Péptido Natriurético tipo B al índice de Lee en la evaluación del riesgo cardiovascular en cirugía mayor no cardiaca

    OpenAIRE

    Gamboa, Óscar; Chicaíza Becerra, Liliana; García Molina, Mario

    2011-01-01

    Se evalúa con un árbol de decisión el costo-efectividad de la adición del Péptido Natriuréticotipo B al índice de Riesgo Cardiaco Revisado de Lee en la valoración del riesgo cardiovascular en pacientes sometidos a cirugía mayor no cardiaca. La estrategia Lee =3 a un costo de Col $79.452 por paciente es costo efectiva para disponibilidades a pagar inferiores a Col $11.292.903. La estrategia de Lee con punto de corte 3 tiene el mejor perfil de costo-efectividad, sin embargo los resultados fuero...

  14. 优良菌用树种浙江润楠的育苗造林技术%Techniques of seedling cultivation and forestation of Machilus chekiangensis S.Lee —— a tree as eminent mushrooms cultur

    Institute of Scientific and Technical Information of China (English)

    林雄平; 彭彪; 黄仁晓; 黄成模; 魏生清

    2011-01-01

    介绍浙江润楠的菌用价值、形态特征及生态习性,阐述了浙江润楠的播种育苗和造林技术.%The paper introduces the fungus-producing forest worth,morphological characteristics and biological characteristics of the Machilus chekiangensis S.Lee and illustrates in detail the techniques of seedling cultivation and forestation of Machilus chekiangen

  15. Impact of harbor navigation channels on waves: a numerical modelling guideline

    NARCIS (Netherlands)

    Dusseljee, D.W.; Klopman, G.; Van Vledder, G.P.; Van Riezebos, H.J.

    2014-01-01

    This study presents an intercomparison of a SWAN and SWASH wave model and 3D laboratory experiments for an existing navigation channel towards a harbor. Results show that the spectral refraction model SWAN underestimates the wave conditions in the channel and at the lee side of the channel especiall

  16. Impact of Harbor Navigation Channels on Waves: a Numerical Modelling Guideline

    NARCIS (Netherlands)

    Dusseljee, D.W.; Klopman, G.; Van Vledder, G.P.; Riezebos, H.J.

    2014-01-01

    This study presents an intercomparison of a SWAN and SWASH wave model and 3D laboratory experiments for an existing navigation channel towards a harbor. Results show that the spectral refraction model SWAN underestimates the wave conditions in the channel and at the lee side of the channel especiall

  17. Age and growth of European barbel Barbus barbus (Cyprinidae in the small, mesotrophic River Lee and relative to other populations in England

    Directory of Open Access Journals (Sweden)

    Vilizzi L.

    2013-08-01

    Full Text Available Suspected of being in decline, the European barbel Barbus barbus population of the River Lee, a heavily-modified river in South East England, has been the subject of investigations to identify factors associated with perceived population decreases. Population surveys between 1995 and 1999 captured a total of 912 individuals, and standard length (SL frequency analyses between years suggested that the population decline was not related to juvenile recruitment but rather to a recruitment bottleneck in fish 300–340 mm SL. This bottleneck probably results from insufficient available habitat suitable to this size class. Of the sampled fish, scales were removed from 764 and were used in a scale ageing exercise among three researchers. Analyses of their independent age estimates revealed variable interpretations, which arose from uncertainties relating to the difficulty of analysing scale patterns from relatively large, slow-growing fish. Nevertheless, error was within published acceptable margins, and age estimates revealed B. barbus in the river to age 10 years, lower than in many UK rivers. The SL-at-age growth curve was characterised by very fast growth in the initial years of life. Thus, the causal factors in the decline of this B. barbus population appear to have been in the adult life-stage habitat and were likely related to the loss of longitudinal connectivity, mainly due to the presence of water retention structures. River and aquatic ecosystem remediation strategies should therefore focus on enhancing longitudinal connectivity in conjunction with the ongoing improvement of water quality and ecosystem integrity.

  18. Constrains on Timeon Model

    CERN Document Server

    Araki, Takeshi

    2009-01-01

    The timeon model recently proposed by Friedberg and Lee has a potential problem of flavor changing neutral currents (FCNCs) if the mass of the timeon is small. In order to avoid the problem without fine-tuning, we introduce a small dimensionless parameter to suppress FCNCs. Even in this case, we find that the timeon mass must be larger than 151 GeV to satisfy all the constraints from processes involving FCNCs in the quark sectors. We also extend the timeon model to the lepton sector and examine the leptonic processes.

  19. Preparation of maleic anhydride modified cassava lees/PVC wood plastic composites%马来酸酐改性木薯酒糟/PVC木塑复合材料制备

    Institute of Scientific and Technical Information of China (English)

    覃宇奔; 胡华宇; 张燕娟; 覃杏珍; 蒋婷; 杨梅; 黄爱民; 黄祖强; 罗袁伟

    2014-01-01

    This study focused on the preparation of cassava lees/PVC wood plastic composites ( WPC) by solid phase blending modification.Cassava lees/PVC WPC were prepared by hot press molding technology using cassava lees as reinforced material, PVC as polymer matrix, maleic an-hydride as modifier, internal mixer as synchronous mixing equipment, and plate vulcanizing press as plate-pressing machine.The effects of hot press temperature, pressure, time, dosage of maleic an-hydride, etc.on the properties of the composites were investigated, and the feasibility of synchronous modification of cassava lees and PVC by maleic anhydride was also discussed.The results show that under the conditions of cassava lees content 50%, hot press temperature 180 ℃, pressure 6 MPa, time 7.5 min, and the dosage of maleic anhydride of 1%, the bending strength and tensile strength of the cassava lees/PVC composite were 26.1 MPa and 11.1 MPa, respectively, meeting the re-quirements of the basic mechanics indexes of the composites.The addition of calcium zinc compound heat stabilizer could effectively improve the mechanical properties of the composites.With the dosage of heat stabilizer of 0.8%, the bending strength and tensile strength increased by 7.7% and 19.8%, respectively.Our results indicated that cassava lees and PVC could be modified synchronously by maleic anhydride in solid phase process, which improved the adhesion between fiber and polymer matrix and effectively enhanced the mechanical properties of WPC.%为研究固相共混改性法制备木薯酒糟/PVC木塑复合材料的工艺,探讨马来酸酐同步改性木薯酒糟和PVC的可行性,以木薯酒糟为增强原料,PVC为聚合物基体,马来酸酐为改性剂,密炼机为同步混炼设备,平板硫化机为压板机,采用热压成型技术制备酒糟/PVC木塑复合材料,研究热压成型温度、压力、时间、马来酸酐用量等因素对板材力学性能的影响。结果表明:在酒糟填充量50%

  20. Modelo Lee-Carter extendido

    Directory of Open Access Journals (Sweden)

    Montes Suay, Francisco

    2007-01-01

    Full Text Available Aunque en la literatura actuarial el conocimiento de la evolución de la mortalidad se remonta a las primeras décadas del siglo XX, solo recientemente los cálculos actuariales han utilizado las tablas de mortalidad proyectadas o dinámicas. En consecuencia, la predicción adecuada de las probabilidades de muerte mediante este tipo de tablas se ha convertido en uno de los ejes centrales de la reducción del riesgo que se asume. Predecir con exactitud el proceso de envejecimiento de la población es ahora más que nunca una preocupación central en países del mundo desarrollado, por sus repercusiones económicas y sociales.

  1. ORTHOIMAGERY, LEE COUNTY, GA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth?s surface, collected by a sensor in which object displacement has been removed for...

  2. A novel macroscopic traffic model based on generalized optimal velocity model

    Institute of Scientific and Technical Information of China (English)

    Zhou Xuan-Hao; Lu Yong-Zai

    2011-01-01

    In this paper, we adopt the coarse graining method proposed by Lee H K et al. to develop a macroscopic model from the microscopic traffic model-GOVM. The proposed model inherits the pararneter p which considers the influence of next-neareet car introduced in the GOVM model. The simulation results show that the new model is strictly consistent with the former microscopic model. Using this macroscopic model, we can avoid considering the details of each traffic on the road, and build more complex models such as road network model easily in the future.

  3. "¿Entiendes, con seguridad, lo que lees?" Hch 8, 30 Caminos de la hermenéutica de [en] la Escritura

    Directory of Open Access Journals (Sweden)

    Ignacio Chuecas Saldías

    2005-01-01

    Full Text Available El presente artículo busca ser una contribución para una hermenéutica bíblica práctica: es decir, no mira hacia la teoría de la interpretación, sino más bien hacia la praxis actual, especialmente en el campo de los estudios sincrónicos. Al mismo tiempo, pretende invitar al lector a conocer los métodos hermenéuticos propios de la tradición del Nuevo Testamento. Es a través de los caminos del midrash judeocristiano que nos acercamos a la praxis hermenéutica de los escritores bíblicos. El objetivo propuesto es llevado a cabo empleando como guía hermenéutica, a la vez que como laboratorio donde se ejemplifican los principios expuestos, el texto bíblico del encuentro del evangelista Felipe y el ministro de la reina de Etiopía (Hechos 8, 20-40. La pregunta de Felipe sirve de leitmotiv a este proceso: ¿entiendes, con certeza, lo que lees? Hermenéutica bíblica es siempre una manera de leer donde la escritura se interpreta a sí misma. El artículo presta especial atención a las categorías y herramientas de interpretación que se han desarrollado a partir de las nuevas impostaciones literarias en el campo de la exégesis bíblicaThe article attempts to make a contribution to the practical biblical hermeneutics focusing on the actual praxis, especially exploring the field of synchronic studies, rather than on the theory of interpretation. It also aims at offering an insight to the hermeneutic methods of the New Testament tradition, approaching the hermeneutic praxis of the biblical writers through the judeo-christian midrash paths. The accomplish such an objective, the author focuses on the biblical text of Philip's encounter with the minister of the queen of Ethiopia (Acts, 8, 20-40 as the hermeneutic guide and source to illustrate the principles being exposed. Philip's question "Can you really understand what you are reading?" serves as leitmotif to this process, as the biblical hermeneutics is a way of reading inwhich the

  4. Status and trends of the rainbow trout population in the Lees Ferry reach of the Colorado River downstream from Glen Canyon Dam, Arizona, 1991–2009

    Science.gov (United States)

    Makinster, Andrew S.; Persons, William R.; Avery, Luke A.

    2011-01-01

    The Lees Ferry reach of the Colorado River, a 25-kilometer segment of river located immediately downstream from Glen Canyon Dam, has contained a nonnative rainbow trout (Oncorhynchus mykiss) sport fishery since it was first stocked in 1964. The fishery has evolved over time in response to changes in dam operations and fish management. Long-term monitoring of the rainbow trout population downstream of Glen Canyon Dam is an essential component of the Glen Canyon Dam Adaptive Management Program. A standardized sampling design was implemented in 1991 and has changed several times in response to independent, external scientific-review recommendations and budget constraints. Population metrics (catch per unit effort, proportional stock density, and relative condition) were estimated from 1991 to 2009 by combining data collected at fixed sampling sites during this time period and at random sampling sites from 2002 to 2009. The validity of combining population metrics for data collected at fixed and random sites was confirmed by a one-way analysis of variance by fish-length class size. Analysis of the rainbow trout population metrics from 1991 to 2009 showed that the abundance of rainbow trout increased from 1991 to 1997, following implementation of a more steady flow regime, but declined from about 2000 to 2007. Abundance in 2008 and 2009 was high compared to previous years, which was likely the result of increased early survival caused by improved habitat conditions following the 2008 high-flow experiment at Glen Canyon Dam. Proportional stock density declined between 1991 and 2006, reflecting increased natural reproduction and large numbers of small fish in samples. Since 2001, the proportional stock density has been relatively stable. Relative condition varied with size class of rainbow trout but has been relatively stable since 1991 for fish smaller than 152 millimeters (mm), except for a substantial decrease in 2009. Relative condition was more variable for larger

  5. Waste conversion into n-caprylate and n-caproate: resource recovery from wine lees using anaerobic reactor microbiomes and in-line extraction

    Directory of Open Access Journals (Sweden)

    Leo A. Kucek

    2016-11-01

    Full Text Available To convert wastes into sustainable liquid fuels and chemicals, new resource recovery technologies are required. Chain elongation is a carboxylate-platform bioprocess that converts short-chain carboxylates (SCCs (e.g., acetate C2 and n-butyrate C4 into medium-chain carboxylates (MCCs (e.g., n-caprylate C8 and n-caproate C6 with hydrogen gas as a side product. Ethanol or another electron donor (e.g., lactate, carbohydrate is required. Competitive MCC productivities, yields (product vs. substrate fed, and specificities (product vs. all products were only achieved previously from an organic waste material when exogenous ethanol had been added. Here, we converted a real organic waste, which inherently comprised of ethanol, into MCCs with n-caprylate as the target product. We used wine lees, which consisted primarily of settled yeast cells and ethanol from wine fermentation, and produced MCCs with a reactor microbiome. We operated the bioreactor at a pH of 5.2 and with continuous in-line extraction and achieved a MCC productivity of 3.9 g COD/L-d at an organic loading rate of 5.8 g COD/L-d, resulting in a promising MCC yield of 67% and specificities of 36% for each n-caprylate and n-caproate (72% for both. Compared to all other studies that used complex organic substrates, we achieved the highest n-caprylate-to-n-caproate product ratio of 1.0 (COD basis, because we used increased broth-recycle rates through the forward membrane contactor, which improved in-line extraction rates. Increased recycle rates also allowed us to achieve the highest reported MCC production flux per membrane surface area thus far (20.1 g COD/m2-d. Through microbial community analyses, we determined that an operational taxonomic unit (OTU for Bacteroides spp. was dominant and was positively correlated with increased MCC productivities. Our data also suggested that the microbiome may have been shaped for improved MCC production by the high broth-recycle rates. Comparable abiotic

  6. Waste Conversion into n-Caprylate and n-Caproate: Resource Recovery from Wine Lees Using Anaerobic Reactor Microbiomes and In-line Extraction

    Science.gov (United States)

    Kucek, Leo A.; Xu, Jiajie; Nguyen, Mytien; Angenent, Largus T.

    2016-01-01

    To convert wastes into sustainable liquid fuels and chemicals, new resource recovery technologies are required. Chain elongation is a carboxylate-platform bioprocess that converts short-chain carboxylates (SCCs) (e.g., acetate [C2] and n-butyrate [C4]) into medium-chain carboxylates (MCCs) (e.g., n-caprylate [C8] and n-caproate [C6]) with hydrogen gas as a side product. Ethanol or another electron donor (e.g., lactate, carbohydrate) is required. Competitive MCC productivities, yields (product vs. substrate fed), and specificities (product vs. all products) were only achieved previously from an organic waste material when exogenous ethanol had been added. Here, we converted a real organic waste, which inherently contains ethanol, into MCCs with n-caprylate as the target product. We used wine lees, which consisted primarily of settled yeast cells and ethanol from wine fermentation, and produced MCCs with a reactor microbiome. We operated the bioreactor at a pH of 5.2 and with continuous in-line extraction and achieved a MCC productivity of 3.9 g COD/L-d at an organic loading rate of 5.8 g COD/L-d, resulting in a promising MCC yield of 67% and specificities of 36% for each n-caprylate and n-caproate (72% for both). Compared to all other studies that used complex organic substrates, we achieved the highest n-caprylate-to-ncaproate product ratio of 1.0 (COD basis), because we used increased broth-recycle rates through the forward membrane contactor, which improved in-line extraction rates. Increased recycle rates also allowed us to achieve the highest reported MCC production flux per membrane surface area thus far (20.1 g COD/m2-d). Through microbial community analyses, we determined that an operational taxonomic unit (OTU) for Bacteroides spp. was dominant and was positively correlated with increased MCC productivities. Our data also suggested that the microbiome may have been shaped for improved MCC production by the high broth-recycle rates. Comparable abiotic

  7. Preparation and Biological Activities of Crude Extract from Blueberry Wine Lees%蓝莓酒泥粗提物的制备及其生物活性

    Institute of Scientific and Technical Information of China (English)

    马艳弘; 刘照亭; 李亚辉; 张宏志; 黄开红

    2016-01-01

    采用超声波辅助酶法提取制备蓝莓酒泥粗提物,研究粗提物的制备工艺并分析粗提物的抗氧化性及其对大鼠肝星状细胞HSC-T6细胞生长的影响。通过单因素试验和正交试验优化制备工艺,检测粗提物对1,1-二苯基-2-三硝基苯肼(1,1-diphenyl-2-picrylhydrazyl,DPPH)自由基、•OH的清除能力,并通过四甲基偶氮唑蓝增殖实验、Hoechst33258荧光染色、流式细胞术研究其对HSC-T6细胞增殖与凋亡的影响。结果表明:制备蓝莓酒泥粗提物的最佳超声条件为超声功率500 W、料液比1∶20(g/mL)、超声时间50 min、提取温度60℃,在此条件下多糖和花色苷的提取量分别为14.24 mg/g和6.13 mg/g。所制备的蓝莓酒泥粗提物对DPPH自由基和•OH具有一定的清除效果,并可显著抑制HSC-T6细胞增殖、诱导HSC-T6细胞凋亡,且在一定的质量浓度范围内,呈现出剂量-时间效应关系,表明蓝莓酒泥粗提物具有良好的抗氧化活性,并对HSC-T6细胞生长具有明显的抑制作用,具有潜在的抗肝纤维化能力。通过诱导HSC-T6细胞凋亡是蓝莓酒泥粗提物抑制细胞生长的作用途径之一。%The study focused on the preparation of crude extract from blueberry wine lees by ultrasound-assisted enzymatic extraction. The antioxidant activity and growth inhibitory effect on HSC-T6 cells of the crude extract on were also evaluated. The optimization of the extraction conditions was performed using one-factor-at-a-time and orthogonal array design. Subsequently, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and hydroxyl radical scavenging capacities were measured to evaluate antioxidant activity, and the growth inhibitory effect of crude extracts on HSC-T6 cells was assessed by methylthiazoletetrazolium (MTT) colorimetric assay, Hoechst 33258 fluorescence staining, and flow cytometry. The optimal extraction conditions were determined as follows: ultrasonic power

  8. Finite-Temperature Phase Structure in the Chiral σ-ω Model with Dilatons

    Institute of Scientific and Technical Information of China (English)

    ZHANG Xiao-Bing ZHANG Xiao-Bing; LI Xue-Qian; NING Ping-Zhi

    2000-01-01

    We investigate the finite-temperature phase structure in a scaled chiral model which includes the dilaton (glueball) field. It is shown that hot nuclear matter undergoes a discontinuous transition in the mean field of scalar mesons as well as the Lee-Wick abnormal transition. The corresponding behavior of the gluon condensate during the chiral phase transition is also studied.

  9. Framing Librarianship in the Academy: An Analysis Using Bolman and Deal's Model of Organizations

    Science.gov (United States)

    Fleming-May, Rachel A.; Douglass, Kimberly

    2014-01-01

    Since the earliest days of the profession, academic librarians have attempted to reconcile their status within the academy. This project takes a new approach to this effort by using Lee Bolman and Terrence Deal's "Four Frames" model to analyze the issues. To more closely examine the dynamics, tensions, and implications associated with…

  10. Mapping Offshore Winds Around Iceland Using Satellite Synthetic Aperture Radar and Mesoscale Model Simulations

    DEFF Research Database (Denmark)

    Hasager, Charlotte Bay; Badger, Merete; Nawri, Nikolai

    2015-01-01

    The offshore wind climate in Iceland is examined based on satellite synthetic aperture radar (SAR), coastal meteorological station measurements, and results from two atmospheric model data sets, HARMONIE and NORA10. The offshore winds in Iceland are highly influenced by the rugged coastline. Lee...

  11. Análisis del proceso de cierre contable mensual y propuesta de mejora basada en la filosofía de manufactura esbelta para la empresa Sara Lee Underwear, Operación Centroamérica

    OpenAIRE

    Chinchilla Méndez, Ana Catalina

    2006-01-01

    Tesis de maestría -- Universidad de Costa Rica. Posgrado en Administración y Dirección de Empresas. Maestría Profesional en Administración y Dirección de Empresas con énfasis en Gerencia, 2006 El objetivo general del trabajo es analizar las áreas de mejora del proceso de cierre contable mensual de la empresa Sara Lee Underwear, Operación Centroamérica, con base en los principios básicos establecidos en la filosofía de manufactura esbelta; esto, con el fin de proponer un proceso mejorado aj...

  12. Embodied Rhythm: Commentary on "The Contribution of Anthropometric Factors to Individual Differences in the Perception of Rhythm" by Neil P. McAngus Todd, Rosanna Cousins, and Christopher S. Lee

    Directory of Open Access Journals (Sweden)

    Bruno H. Repp

    2007-01-01

    Full Text Available Todd, Cousins, and Lee (2007 have presented some intriguing data suggesting that body size, as measured by standard anthropometric indices, is related to the preferred beat period in a perceptual task. Curiously, however, they did not find a significant sex difference, even though the women in their sample were clearly smaller than the men. Another recent study of preferred spontaneous tempo (McAuley et al., 2006 likewise failed to find a sex difference in a large sample of young adults. It is unclear why body size should have an effect only within each sex group.

  13. The influences of adding lees and plant ash on anaerobic fermentation of pig manure%添加酒糟、草木灰对猪粪厌氧发酵的影响

    Institute of Scientific and Technical Information of China (English)

    刘娟娟; 季艳敏; 尹冬雪; 李轶冰; 任广鑫

    2012-01-01

    Take the pig manure as fermentation materials,the effect of, by adding varying amounts of lees and plant ash on the anaerobic fermentation biogas production at 25 ℃, the aerogenesis rate、 accumulated gas production, pH, NH3-N content and CH4 content in the anaerobic fermentation process was analyzed. The results show that the accumulated gas production get the highest as well as the CH4 content when adding lg plant ash;the same as adding 5 g lees into the pig manure. Adding 1,3 g and 5 g lees in the anaerobic fermentation process respectively, the tendency of pH , present drop-increase-drop, and NH3-N increase-drop-increase. But Adding 1, 3 g and 5 g plant ash respectively in the anaerobic fermentation process, the tendency of pH and the NH3-N are similar, increases at first then reduces and finally becomes stable. In a conclusion, reasonable lees and plant ash addition is the premise to improve the amount of gas production and CH4 content in the pig manure anaerobic fermentation process.%以猪粪为发酵原料,研究在25℃条件下分别添加不同量的酒糟、草木灰对厌氧发酵产沼气的影响,分析了厌氧发酵过程中产气速率、累积产气量、pH值、氨态氮质量浓度及甲烷含量的变化.结果表明,在猪粪中添加草木灰1 g,累积产气量大且甲烷含量高;添加酒糟5 g,累积产气量大且甲烷含量高.添加1,3,5 g草木灰,pH值呈现降低—升高—稳定的趋势,氨态氮呈现升高—降低—稳定的趋势;添加1,3,5 g酒糟后,发酵过程中的pH值和氨态氮变化规律相似,均呈现升高—降低—升高—稳定的趋势.因此,合理的酒糟、草木灰添加量是提高猪粪厌氧发酵产气量及甲烷含量的前提.

  14. Model to localize gauge and tensor fields on thick branes

    Science.gov (United States)

    Chumbes, A. E. R.; Hoff da Silva, J. M.; Hott, M. B.

    2012-04-01

    It is shown that the introduction of a suitable function in the higher-dimensional gauge field action may be used in order to achieve gauge bosons localization on a thick brane. The model is constructed upon analogies to the effective coupling of neutral scalar field to electromagnetic field and to the Friedberg-Lee model for hadrons. After that we move forward studying the localization of the Kalb-Ramond field via this procedure.

  15. Constraints on the timeon model

    Science.gov (United States)

    Araki, Takeshi; Geng, C. Q.

    2009-04-01

    The timeon model recently proposed by Friedberg and Lee has a potential problem of flavor changing neutral currents (FCNCs) if the mass of the timeon is small. In order to avoid, we introduce a small dimensionless parameter to suppress FCNCs. Even in this case, we find that the timeon mass must be larger than 151 GeV to satisfy all the constraints from processes involving FCNCs in the quark sectors. We also extend the timeon model to the lepton sector and examine the leptonic processes.

  16. Presentación del libro ¿Para qué se lee y se escribe en la universidad colombiana? Un aporte a la consolidación de la cultura académica del país

    OpenAIRE

    Carlino, Paula; Universidad Nacional de Buenos Aires

    2013-01-01

    Presentación del libro ¿Para qué se lee y se escribe en la universidad colombiana? Un aporte a la consolidación de la cultura académica del país. Pérez, M. & Rincón, G (Coords.) (2013) ¿Para qué se lee y se escribe en la universidad colombiana? Un aporte a la consolidación de la cultura académica del país. Bogotá: Editorial Pontificia Universidad Javeriana. Presentación del libro ¿Para qué se lee y se escribe en la universidad colombiana? Un aporte a la consolidación de la cultura acad...

  17. An improved mechanistic critical heat flux model for subcooled flow boiling

    Energy Technology Data Exchange (ETDEWEB)

    Kwon, Young Min [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of); Chang, Soon Heung [Korea Advanced Institute of Science and Technology, Taejon (Korea, Republic of)

    1997-12-31

    Based on the bubble coalescence adjacent to the heated wall as a flow structure for CHF condition, Chang and Lee developed a mechanistic critical heat flux (CHF) model for subcooled flow boiling. In this paper, improvements of Chang-Lee model are implemented with more solid theoretical bases for subcooled and low-quality flow boiling in tubes. Nedderman-Shearer`s equations for the skin friction factor and universal velocity profile models are employed. Slip effect of movable bubbly layer is implemented to improve the predictability of low mass flow. Also, mechanistic subcooled flow boiling model is used to predict the flow quality and void fraction. The performance of the present model is verified using the KAIST CHF database of water in uniformly heated tubes. It is found that the present model can give a satisfactory agreement with experimental data within less than 9% RMS error. 9 refs., 5 figs. (Author)

  18. Optimization of culture conditions of Lactobacillus plantarum using cassava lees liquid%利用木薯酒糟液培养植物乳杆菌工艺条件的优化研究

    Institute of Scientific and Technical Information of China (English)

    柳树海; 陈瑾; 梅雪臣; 刘晓红; 缪礼鸿

    2013-01-01

    Increasing the viable bacteria counts of lactic acid bacteria in the medium and cutting down cost of medium production were the key of developing feeding lactic acid bacteria agent. The fermentation medium and fermentation parameters of Lactobacillus plantarum cultured in cassava lees liquid were optimized by single factor and orthogonal experiment method. The results showed that the optimum medium of Lactobacillus plantarum including cassava lees liquid 97. 75%, molasses 2%, yeast extract 0. 25%, pH5. 5 and the optimum fermentation parameters were shake cultivation at 7℃, 120 r/min for 24 h. In the end of culture, viable bacteria counts of Lactobacillus plantarum was up to 49. 0×108 cfu/ml, which was 2. 41 times of that before optimizing, and 35% higher than in the MRS medium. The results showed that it was feasible to culture Lactobacillus plantarum using cassava lees liquid.%提高培养基中乳酸菌活菌数和降低培养基生产成本是开发饲用乳酸菌剂的关键.本研究以木薯酒糟液作为培养植物乳杆菌的基础发酵培养基,通过单因子和正交试验方法,对木薯酒糟培养乳酸菌的培养基配方及发酵条件进行了优化.结果表明:植物乳杆菌最佳培养基配方为木薯酒糟液97.75%,糖蜜2.00%,酵母膏0.25%,pH值5.5.最佳培养条件为在37℃下用120 r/min摇床培养,培养时间为24 h.培养结束后培养液中乳酸菌菌体活菌数达49.0×108 cfu/ml,是未优化木薯酒糟液基础发酵培养基中活菌数的2.41倍,比MRS培养基中的活菌数高35%.表明用优化的木薯酒糟液培养基培养植物乳杆菌具有可行性.

  19. Estimación y proyección de la mortalidad para Costa Rica con la aplicación del método Lee-Carter con dos variantes

    Directory of Open Access Journals (Sweden)

    Eduardo Aguilar Fernández

    2013-01-01

    Full Text Available El modelo de Lee y Carter ha sido aplicado para realizar estimaciones de la mortalidad en Costa Rica durante el período 1970-2010, y estas a su vez permiten hacer proyecciones que contribuyen al estudio del curso de la mortalidad en nuestra sociedad. Los datos del estudio corresponden a las tasas anuales de mortalidad, definidas para cada sexo y grupo de edad correspondientes al período 1970-2010. La incorporación de las variantes del modelo ha generado dos familias de estimaciones para la estimación de la esperanza de vida, mientras que las proyecciones muestran comportamientos muy similares que revelan valores mayores a los oficiales.

  20. 韩国李明博政府的科技政策之探究%Research on the S&T policy of Lee Myung-bak Government in Korea

    Institute of Scientific and Technical Information of China (English)

    王玲

    2009-01-01

    In February 2008, Lee Myung-bak published a series of new policies on science and technology after he acceded to Korean president. The paper mainly introduces the content of "The 2nd Science and Technology Basic Plan (2008-2012)" issued by the government, analyzes and summarizes the government's science and technology policies, for references to relevant people.%2008年2月,李明博就任韩国总统后推出一系列科技新政.本文主要介绍李明博政府推出的内容,对其科技政策进行分析和总结,供相关人士参考.

  1. A Computational Framework for Phase-field Modeling

    Science.gov (United States)

    2011-01-01

    twin embryo within an otherwise perfect single crystal (12). Analytical models based on free energy variations in the context of phase...transformations have been applied to describe twin nucleation (12, 13). Such approaches consider nucleation of a twin embryo of idealized geometry—an elliptical...Crystals, in preparation, 2011. 12. Christian , J. W.; Mahajan, S. Deformation Twinning. Prog. Mater. Sci. 1995, 39, 1–157. 13. Lee, J. K.; Yoo, M

  2. Creation of a Homeland Security Jail Information Model

    Science.gov (United States)

    2012-03-01

    In contrast, law enforcement officers at a jail have a better gestalt understanding of homeland security threats and trends in the same...and my personal familiarity with each model. In his book Beyond the Two Disciplines of Scientific Psychology , Lee Cronbach claims that...muhajir.background/index.html Cronbach, L. J. (1975). Beyond the two disciplines of scientific psychology . Washington, D.C.: American Psychologist

  3. Job Aiding/Training Decision Process Model

    Science.gov (United States)

    1992-09-01

    I[ -, . 1’, oo Ii AL-CR-i1992-0004 AD-A256 947lEE = IIEI ifl ll 1l I JOB AIDING/TRAINING DECISION PROCESS MODEL A R M John P. Zenyuh DTIC S Phillip C...March 1990 - April 1990 4. TITLE AND SUBTITLE S. FUNDING NUMBERS C - F33615-86-C-0545 Job Aiding/Training Decision Process Model PE - 62205F PR - 1121 6...Components to Process Model Decision and Selection Points ........... 32 13. Summary of Subject Recommendations for Aiding Approaches

  4. Evaluation of the temperature-dependent internal quantum efficiency and the light-extraction efficiency in a GaN-based blue light-emitting diode by using a rate equation model

    Science.gov (United States)

    Choi, Young-Hwan; Ryu, Guen-Hwan; Ryu, Han-Youl

    2016-10-01

    The internal quantum efficiency (IQE) and the light extraction efficiency (LEE) of a GaN-based blue light-emitting diode (LED) are evaluated separately in the temperature range between 20 to 80 °C. The theoretical IQE model based on the carrier rate equation of semiconductors is applied to determine the IQE and the LEE separately from a measured external quantum efficiency (EQE) versus current relation for the LED sample. While the peak EQE of the measured sample decreases by 3.2 % as the temperature increases from 20 to 80 °C, it is found that the peak IQE decreases by 4.5 % and the LEE increases by 1.5 %.

  5. RE: Comments on: Further studies of Bolivian crocidolite-Part IV: Fibre width, fibre drift and their relation to mesothelioma induction: Preliminary findings, by Ilgren EB, van Order DR, Lee RJ, Kamiya YM, Hoskins JA ebph 2015; 12 (2 e11167

    Directory of Open Access Journals (Sweden)

    Stefania Boccia

    2016-03-01

    Full Text Available RE: Comments on: Further studies of Bolivian crocidolite-Part IV: Fibre width, fibre drift and their relation to mesothelioma induction: Preliminary findings, by Ilgren EB, van Order DR, Lee RJ, Kamiya YM, Hoskins JA Epidemiology Biostatistics and Public Health 2015; 12 (2, e11167

  6. 22nd September 2010 - Korean Minister of Education, Science and Technology J.-H. Lee signing the guest book and exchanging gifts with CERN Director-General R. Heuer and Head of International Relations F. Pauss; visiting ALICE exhibition with Collaboration Spokesperson J. Schukraft; accompanied throughout by Adviser R. Voss.

    CERN Multimedia

    Teams : M. Brice ; JC Gadmer

    2010-01-01

    22nd September 2010 - Korean Minister of Education, Science and Technology J.-H. Lee signing the guest book and exchanging gifts with CERN Director-General R. Heuer and Head of International Relations F. Pauss; visiting ALICE exhibition with Collaboration Spokesperson J. Schukraft; accompanied throughout by Adviser R. Voss.

  7. Blood sugar beat - diabetes from the inside out Nic Lee Blood sugar beat - diabetes from the inside out ( http://nickynockynoo.com ) 183pp £9.99 (PDF £2.99) 978 1 4452 5671 9 97814452 56719 [Formula: see text].

    Science.gov (United States)

    2011-01-19

    Author Nic Lee says his experience of type 1 diabetes inspired him to become a nurse. His book is an intense, emotional narrative with insights into his experience of coming to terms with the condition. It is recommended reading for patients as well as clinicians.

  8. Back-propagation neural network in tidal-level forecasting by Ching-PiaoTsai and Tsong-Lin Lee - Discussion

    Digital Repository Service at National Institute of Oceanography (India)

    Mandal, S.

    an interesting study on the ap- plication of an artificial neural network (ANN) for forecasting tidal levels. This technique is comparable to the already pop- ular time series modeling with an added advantage in that the functional form between the input variable... of hydrologic models.’’ J. Hydrology, 81, 57–77. McCuen, R. H. (1993). Statistical hydrology, Prentice-Hall, Englewood Cliffs, N.J. Tokar, A. S., and Johnson, P. A. (1999). ‘‘Rainfall-runoff modeling using artificial neural networks.’’ J. Hydrologic Engrg., ASCE...

  9. Effects of High-Flow Experiments from Glen Canyon Dam on Abundance, Growth, and Survival Rates of Early Life Stages of Rainbow Trout in the Lees Ferry Reach of the Colorado River

    Science.gov (United States)

    Korman, Josh; Kaplinski, Matthew; Melis, Theodore S.

    2010-01-01

    High-flow experiments (HFEs) from Glen Canyon Dam are primarily intended to conserve fine sediment and improve habitat conditions for native fish in the Colorado River as it flows through Grand Canyon National Park, Arizona. These experimental flows also have the potential to affect the rainbow trout (Oncorhynchus mykiss) population in the Lees Ferry tailwater reach immediately below the dam, which supports a highly valued recreational fishery and likely influences the abundance of rainbow trout in Grand Canyon. Understanding how flow regimes affect the survival and growth of juvenile rainbow trout is critical to interpreting trends in adult abundance. This study reports on the effects of HFEs in 2004 and 2008 on early life stages of rainbow trout in the Lees Ferry reach on the basis of monthly sampling of redds (egg nests) and the abundance of the age-0 trout (fertilization to about 1 to 2 months from emergence) and their growth during a 7-year period between 2003 and 2009. Multiple lines of evidence indicate that the March 2008 HFE resulted in a large increase in early survival rates of age-0 trout because of an improvement in habitat conditions. A stock-recruitment analysis demonstrated that age-0 abundance in July 2008 was more than fourfold higher than expected, given the number of viable eggs that produced these fish. A hatch-date analysis showed that early survival rates were much higher for cohorts that hatched about 1 month after the 2008 HFE (about April 15, 2008) relative to those fish that hatched before this date. These cohorts, fertilized after the 2008 HFE, would have emerged into a benthic invertebrate community that had recovered, and was possibly enhanced by, the HFE. Interannual differences in growth of age-0 trout, determined on the basis of otolith microstructure, support this hypothesis. Growth rates in the summer and fall of 2008 (0.44 mm/day) were virtually the same as in 2006 (0.46 mm/day), the highest recorded during 6 years, even though

  10. Effects of High-Flow Experiments from Glen Canyon Dam on Abundance, Growth, and Survival Rates of Early Life Stages of Rainbow Trout in the Lees Ferry Reach of the Colorado River

    Science.gov (United States)

    Korman, Josh; Kaplinski, Matthew; Melis, Theodore S.

    2010-01-01

    High-flow experiments (HFEs) from Glen Canyon Dam are primarily intended to conserve fine sediment and improve habitat conditions for native fish in the Colorado River as it flows through Grand Canyon National Park, Arizona. These experimental flows also have the potential to affect the rainbow trout (Oncorhynchus mykiss) population in the Lees Ferry tailwater reach immediately below the dam, which supports a highly valued recreational fishery and likely influences the abundance of rainbow trout in Grand Canyon. Understanding how flow regimes affect the survival and growth of juvenile rainbow trout is critical to interpreting trends in adult abundance. This study reports on the effects of HFEs in 2004 and 2008 on early life stages of rainbow trout in the Lees Ferry reach on the basis of monthly sampling of redds (egg nests) and the abundance of the age-0 trout (fertilization to about 1 to 2 months from emergence) and their growth during a 7-year period between 2003 and 2009. Multiple lines of evidence indicate that the March 2008 HFE resulted in a large increase in early survival rates of age-0 trout because of an improvement in habitat conditions. A stock-recruitment analysis demonstrated that age-0 abundance in July 2008 was more than fourfold higher than expected, given the number of viable eggs that produced these fish. A hatch-date analysis showed that early survival rates were much higher for cohorts that hatched about 1 month after the 2008 HFE (about April 15, 2008) relative to those fish that hatched before this date. These cohorts, fertilized after the 2008 HFE, would have emerged into a benthic invertebrate community that had recovered, and was possibly enhanced by, the HFE. Interannual differences in growth of age-0 trout, determined on the basis of otolith microstructure, support this hypothesis. Growth rates in the summer and fall of 2008 (0.44 mm/day) were virtually the same as in 2006 (0.46 mm/day), the highest recorded during 6 years, even though

  11. Origin of the waves in ‘A case-study of mesoscale spectra of wind and temperature, observed and simulated’: Lee waves from the Norwegian mountains

    DEFF Research Database (Denmark)

    Larsén, Xiaoli Guo; Larsen, Søren Ejling; Hahmann, Andrea N.

    2012-01-01

    This note uses SAR images, satellite cloud pictures and point measurements together with simulations using the Weather Research and Forecasting (WRF) model to identify the origin of the gravity waves over Denmark on 6 November 2006, studied recently. The wave characteristics, concerning their ini...... the Norwegian mountains. Copyright © 2011 Royal Meteorological Society...

  12. A phase i study of the cyclin-dependent kinase 4/6 inhibitor ribociclib (LEE011) in patients with advanced solid tumors and lymphomas

    NARCIS (Netherlands)

    Infante, Jeffrey R.; Cassier, Philippe A.; Gerecitano, John F.; Witteveen, Petronella O.; Chugh, Rashmi; Ribrag, Vincent; Chakraborty, Abhijit; Matano, Alessandro; Dobson, Jason R.; Crystal, Adam S.; Parasuraman, Sudha; Shapiro, Geoffrey I.

    2016-01-01

    Purpose: Ribociclib (an oral, highly specific cyclin-dependent kinase 4/6 inhibitor) inhibits tumor growth in preclinical models with intact retinoblastoma protein (Rb+). This first-in-human study investigated the MTD, recommended dose for expansion (RDE), safety, preliminary activity, pharmacokinet

  13. Memo, "Incorporation of HLW Glass Shell V2.0 into the Flowsheets," to ED Lee, CCN: 184905, October 20, 2009

    Energy Technology Data Exchange (ETDEWEB)

    Gimpel, Rodney F.; Kruger, Albert A.

    2013-12-18

    Efforts are being made to increase the efficiency and decrease the cost of vitrifying radioactive waste stored in tanks at the U.S. Department of Energy Hanford Site. The compositions of acceptable and processable high-level waste (HL W) glasses need to be optimized to minimize the waste-form volume and, hence, to reduce cost. A database of glass properties of waste glass and associated simulated waste glasses was collected and documented in PNNL 18501, Glass Property Data and Models for Estimating High-Level Waste Glass Volume and glass property models were curve-fitted to the glass compositions. A routine was developed that estimates HL W glass volumes using the following glass property models: II Nepheline, II One-Percent Crystal Temperature (T1%), II Viscosity (11) II Product Consistency Tests (PCT) for boron, sodium, and lithium, and II Liquidus Temperature (TL). The routine, commonly called the HL W Glass Shell, is presented in this document. In addition to the use of the glass property models, glass composition constraints and rules, as recommend in PNNL 18501 and in other documents (as referenced in this report) were incorporated. This new version of the HL W Glass Shell should generally estimate higher waste loading in the HL W glass than previous versions.

  14. 德高里尔与二战后美国中东石油政策%Everette Lee DeGolyer and American Oil Policy in Middle East after World War Ⅱ

    Institute of Scientific and Technical Information of China (English)

    支晓兰

    2011-01-01

    第二次世界大战引起了人们对石油的高度重视。二战前,墨西哥湾是世界石油供应的中心。二战期间,德高里尔对中东石油的调查报告向世人展示了中东地区巨大的石油储量,同时对二战后美国中东石油政策产生了深远的影响。%People attach great importance to oil after World War Ⅱ.Gulf of Mexico was the center of world's oil supply before World War Ⅱ.During World War Ⅱ,the investigating report of the oil mission to the Middle East made by Everette Lee DeGolyer showed all people in the world that there was vast oil reserve in Middle East.Meanwhile,the report has a profound impact on American oil policy in Middle East after World War Ⅱ.

  15. Introduction of the Western Animal Protection Movement by Pichen Lee and Her Patriotism Feelings%吕碧城戒杀护生观念及其对西方保护动物运动的传介

    Institute of Scientific and Technical Information of China (English)

    熊慧颖

    2015-01-01

    中年以后的吕碧城,鼓吹戒杀护生,提倡素食,翻译佛典,谋创成立中国保护动物会,成为沟通东西方动物保护运动的桥梁。本文以西方保护动物运动风潮和1930年代的国内时局为背景,以吕碧城推广戒杀护生、保护动物的活动为论述主线,探讨这一活动的时代意义。%Pichen Lee took up the advocacy of the animal protection movement in her middle age. By disseminating the concept of anti-slaughter,becoming a vegan, and translating the Sutras of the Buddha. she become a bridge of communication between eastern and western communities of the movement. In 1930’s,China was in turmoil. Based on this background, this article focuses on her action of advocating anti-slaughter and the movement of animal protection, and analying the meaning in epoch.

  16. Preparation of activate carbon with high specific surface area from beer lees by chemical activation with KOH; Suisankakariumu wo mochiita yakuhin fukatsuho ni yoru birukasu karano kohihyoumenseki kasseitan no seizo

    Energy Technology Data Exchange (ETDEWEB)

    Hayashi, J.; Kubo, A.; Furukawa, A.; Muroyama, K. [Kansai University, Osaka (Japan). Dept. of Chemical Engineering

    2000-03-10

    Activated carbons with high specific surface area were prepared from beer lees by chemical activation with KOH. We examined the influence of the preparation conditions, such as temperature and impregnation ratio, on the pore structure of the prepared activated carbon. The specific surface area increased with an increase in carbonization temperature up to 800 degree C and decreased at 900 degree C because of excess activation. It reached a maximum value at the impregnation ratio of 2.0. The activated carbon, which was prepared at the carbonization temperature of 800 degree C and at the impregnation ratio of 2.0, had very high specific surface area of 2,440 m{sup 2}/g. It was found that KOH worked effectively as the activating reagent in two temperature ranges, below 500 degree C and above 600 degree C. The amount of benzene and acetone adsorbed on the prepared activated carbon were much larger than that on the commercial activated carbons. (author)

  17. Discussion of using artificial neural nets to identify the well-test interpretation model

    Energy Technology Data Exchange (ETDEWEB)

    Yeung, K. (Univ. of Alberta, Edmonton, Alberta (Canada)); Chakrabarty, C. (Golder Associates, Nottingham (United Kingdom)); Wu, S. (Univ. of Melbourne (Australia))

    1994-09-01

    Use of artificial neural nets (ANN's) to identify noisy and apparently unrecognizable patterns is common for many real-world problems, ranging from applications such as speech recognition to stock market prediction. ANN approaches are often good candidates for recognizing patterns when rigid mathematical models do not exist or are insufficient to meet a full-scale identification requirement. Al-Kaabi and Lee's proposal of using ANN's to identify the well-test interpretation model is appropriate because well-test data is often highly nonlinear and noisy. The purpose of this discussion is to present some of the authors results in a similar study and to suggest a simple technique that would enhance the use of ANN's in Al-Kaabi and Lee's approach.

  18. Computer-Based Model Calibration and Uncertainty Analysis: Terms and Concepts

    Science.gov (United States)

    2015-07-01

    in catchment models. 1. Evaluating parameter uncertainty. Water Resources Research 19(5):1151–1172. Lee, P. M. 2012. Bayesian statistics: An...confidence or belief. For example, in a Bayesian framework, someone could say that tomorrow’s weather has a 50% chance of rain . Whereas in a...frequentist framework, someone can only say that there is a certain probably of rain for a given day of the year based on the historical record. Parameters

  19. An experimental model of ice floe induced attenuation of ocean waves

    CERN Document Server

    Toffoli, Alessandro; Bennetts, Luke G; Meylan, Michael H; Cavaliere, Claudio; Babanin, Alexandr

    2014-01-01

    An experimental model of ocean wave attenuation due to interactions with an ice floe is presented. Evolution of mechanically-generated, regular waves is monitored in front and in the lee of a solitary, square floe, made of a synthetic material. Results confirm dependence of attenuation on the period of the incident wave. Results also indicate dependence of attenuation on the depth of wave overwash on the floe.

  20. Qualitative mathematics for the social sciences mathematical models for research on cultural dynamics

    CERN Document Server

    Rudolph, Lee

    2012-01-01

    In this book Lee Rudolph brings together international contributors who combine psychological and mathematical perspectives to analyse how qualitative mathematics can be used to create models of social and psychological processes. Bridging the gap between the fields with an imaginative and stimulating collection of contributed chapters, the volume updates the current research on the subject, which until now has been rather limited, focussing largely on the use of statistics. Qualitative Mathematics for the Social Sciences contains a variety of useful illustrative figures, in

  1. Wave Climate and Wave Mixing in the Marginal Ice Zones of Arctic Seas, Observations and Modelling

    Science.gov (United States)

    2015-09-30

    PROJECTS Section). With the group of Rogers, observation/modeling study of an energetic wave event in the Arctic marginal zone was conducted ...floe. (right) Surface elevation in the lee of a 5 mm thick polypropylene floe (thick black curves) and incident wave (grey), normalised with respect...Toffoli, A., Marusic, I., Klewicki, J., Hutchins, N., Suslov, S., Walker, D., Chung, D., “A Thermally Stratified Sea-Ice-Wave Interaction Facility”, ARC

  2. Comment on ''Fabrication methods for low-Pt-loading electrocatalysts in proton exchange membrane fuel cell systems'' [J.-H. Wee, K.-Y. Lee, S.H. Kim, J. Power Sources 165 (2007) 667-677

    Energy Technology Data Exchange (ETDEWEB)

    Gruber, D. [Department of Micro Systems Technology, Hamburg University of Technology, D-21071 Hamburg (Germany)

    2007-11-08

    Glow discharge sputter deposition of metals like Pt or other materials is around for decades. One of the many advantages of this process is - certain prerequisites given - the good adhesion of the sputtered layers due to the physical assisted deposition. Sputter deposition is attributed poor adherence by Wee et al. [Jung-Ho Wee, Kwan-Young Lee, Sung Hyun Kim, J. Power Sources 165 (2007) 667-677], which asks for some comments. (author)

  3. Effects of increased discharge on spawning and age-0 recruitment of rainbow trout in the Colorado River at Lees Ferry, Arizona

    Science.gov (United States)

    Avery, Luke A.; Korman, Josh; Persons, William R.

    2015-01-01

    Negative interactions of Rainbow Trout Oncorhynchus mykiss with endangered Humpback Chub Gila cypha pose challenges to the operation of Glen Canyon Dam (GCD) to manage for both species in the Colorado River. Operations to enhance the Rainbow Trout tailwater fishery may lead to an increase in downstream movement of the trout to areas where they are likely to interact with Humpback Chub. We evaluated the effects of dam operations on age-0 Rainbow Trout in the tailwater fishery to inform managers about how GCD operations could benefit a tailwater fishery for Rainbow Trout; although this could affect a Humpback Chub population farther downstream. A near year-long increase in discharge at GCD in 2011 enabled us to evaluate whether high and stable flows led to increased spawning and production of age-0 Rainbow Trout compared with other years. Rainbow Trout spawning was monitored by fitting a model to observed redd counts to estimate the number of redds created over a spawning season. Data collected during electrofishing trips in July–September and November were used to acquire age-0 trout population and mortality rate estimates. We found that high and stable flows in 2011 resulted in 3,062 redds (1.7 times the mean of all survey years) and a population estimate of 686,000 age-0 Rainbow Trout (second highest on record). Despite high initial abundance, mortality remained low through the year (0.0043%/d) resulting in significant recruitment with a record high November population estimate of 214,000 age-0 Rainbow Trout. Recent monitoring indicates this recruitment event was followed by an increase in downstream migration, which may lead to increased interactions with downstream populations of Humpback Chub. Consequently, while our results indicate that manipulating flow at GCD can be used to manage Rainbow Trout spawning and recruitment, fisheries managers should use flow manipulation in moderation to minimize downstream migration in order to reduce negative

  4. Item Screening in Graphical Loglinear Rasch Models

    DEFF Research Database (Denmark)

    Kreiner, Svend; Christensen, Karl Bang

    2011-01-01

    the initial item analysis may disclose a great deal of spurious and misleading evidence of DIF and local dependence that has to disposed of during the modelling procedure. Like graphical models, graphical loglinear Rasch models possess Markov properties that are useful during the statistical analysis......In behavioural sciences, local dependence and DIF are common, and purification procedures that eliminate items with these weaknesses often result in short scales with poor reliability. Graphical loglinear Rasch models (Kreiner & Christensen, in Statistical Methods for Quality of Life Studies, ed....... by M. Mesbah, F.C. Cole & M.T. Lee, Kluwer Academic, pp. 187–203, 2002) where uniform DIF and uniform local dependence are permitted solve this dilemma by modelling the local dependence and DIF. Identifying loglinear Rasch models by a stepwise model search is often very time consuming, since...

  5. Direct Utilization of Circulating Fluidized Bed Combustion Ash of Distilled Spirits Lees as Fertilizer%白酒糟循环流化床燃烧灰直接肥料化利用

    Institute of Scientific and Technical Information of China (English)

    宋扬; 汪印; 姚常斌; 张玉明; 王昶; 易彬; 杨俊; 许光文

    2011-01-01

    研究了白酒糟循环流化床燃烧灰直接作为肥料的可能性和效果,以其为肥料种植油菜,考察了油菜在5种土壤中发芽和生长情况.结果表明,白酒糟燃烧灰对不同生长阶段的油菜有不同影响,对壤质土中的油菜发芽有抑制作用,但能明显改善粘性土壤中油菜的生长环境,油菜的净增量和产量都有明显增加.白酒糟燃烧灰还能提高酸性土壤pH值,使土壤环境向中性(pH 6.97~7.74)变,有利于腐殖酸分解和植物生长.土壤与白酒糟燃烧灰质量比为5:1时,与原土相比,泸州国窖红土壤、泸州青稞土壤及富阳土壤中油菜净增量分别为80.1%,80.9%,163.6%,表明利用白酒糟燃烧灰作为植物生长肥料是可行的.%The feasibility of utilizing the circulating fluidized bed combustion ash of distilled spirits lees as fertilizer was investigated. The rape culture experiment was carried out in 5 different kinds of soils, and the rape growth states in the germination and growth stages were measured to evaluate the effect of adding ash to the soils as fertilizer. The results show that the ash exhibited different effects on the rape growth in different culture stages. There was an antibiastic effect on the rape growth in the germination stage in a loamy soil, but the rape growth was much improved when adding the ash to a clayey soil. The latter led the mature rape to having obviously increased net height and weight. The ash could change the pH value of acid soil into neutral state, facilitating the humic acid decomposition and plant growth. Comparing the soils at soil:ash=5:l(ω) with original soil, the increased amplitudes of net height of rape in Guojiaohong Turang, Qingke Turang and Fuyang Turang were 80.1%, 80.9% and 163.6%, respectively. As consequence, it was feasible and effective to use directly the combustion ash of distilled spirits lees as fertilizer.

  6. VALIDACIÓN DE CONTENIDO LÉXICO DE LOS TEXTOS PARA LA COMPRENSIÓN LECTORA DEL TEST DE LECTURA Y ESCRITURA EN ESPAÑOL (LEE PARA SU APLICACIÓN EN COSTA RICA

    Directory of Open Access Journals (Sweden)

    María de los Ángeles Carpio Brenes

    2016-01-01

    Full Text Available Este artículo presenta los resultados de la validación de contenido léxico de seis textos para la comprensión lectora del Test de Lectura y Escritura en Español (LEE, que se realizó en el II Ciclo 2013 como primer paso para la adaptación de ese instrumento a nuestro contexto educativo costarricense, pues al ser una batería de pruebas argentino-española, el vocabulario se ajusta al utilizado en Costa Rica. Para sustentar esta afirmación, se hizo este estudio con un enfoque instrumental utilizando metodología cuantitativa, donde se utilizó la triangulación para el análisis de los datos suministrados por tres fuentes de información: estudiantes, docentes y personas expertas. Los resultados demuestran que el léxico de los textos es comprensible para una muestra de 477 estudiantes de segundo, tercero y cuarto grados de 15 escuelas del Circuito 09 de la Región Educativa de Cartago; estos datos están apoyados por el criterio de las 35 personas docentes y 5 expertas participantes. Se identificaron muy pocas palabras en los seis textos que podrían generar confusión en la comprensión de los mismos por un asunto de léxico (términos propios de cada región, de las cuales se recomendarán sinónimos como ajuste del test para la segunda parte de este estudio, que corresponde a la determinación de la confiabilidad y validez de contenido, de constructo y de criterio de la totalidad del test para su uso en Costa Rica.

  7. The importance of the reference populations for coherent mortality forecasting models

    DEFF Research Database (Denmark)

    Kjærgaard, Søren; Canudas-Romo, Vladimir; Vaupel, James W.

    -population mortality models aiming to find the optimal of the set of countries to use as reference population and analyse the importance of the selection of countries. The two multi-population mortality models used are the Li-Lee model and the Double-Gap life expectancy forecasting model. The reference populations...... is calculated taking into account all the possible combinations of a set of 20 industrialized countries. The different reference populations possibilities are compared by their forecast performance. The results show that the selection of countries for multi-population mortality models has a significant effect...

  8. Modeling Soil Erosion with the Aid of GIS

    Institute of Scientific and Technical Information of China (English)

    WU Ping-li

    2005-01-01

    Soil erosion caused by water is an increasing global problem. In order to relieve this problem, several erosion models have been developed to measure the rate of erosion for soil conservation planning. This study takes Lee County, South Carolina, USA as an example to map soil erosion within ArcGIS environment by using the RUSLE with erosion indexes retrieved from DEM. This study proves that the integration of soil erosion models with GIS is a very simple but efficient tool for soil conservation.

  9. Kahanev rahvaarv kasvatab rahumeelsust / Lee Kuan Yew

    Index Scriptorium Estoniae

    Lee Kuan Yew, 1923-

    2013-01-01

    Singapuri kauaaegne peaminister meenutab, et teise maailmasõja ajendiks oli Jaapani ja Saksamaa kõrgest sündimuskordajast (vastavalt 4,2 ja 2,6) tingitud ruumipuudus ja laienemisiha. Arvestades India (2,6) ja Aafrika riikide (4-7) vastavaid arve, küsib autor, mis meid nüüd ees ootab ja kas oleme selleks valmis

  10. Inglased puhkavad Haljalas toodetud patjadel / Merike Lees

    Index Scriptorium Estoniae

    Lees, Merike, 1976-

    2005-01-01

    TOP-i 1. koht. Ülevaade Briti perefirma filiaali, patju ja tekke valmistava Baltic Fibres OÜ tegevusest. Kommenteerib Haljala vallavanem Jüri Sikkut. Lisa: Baltic Fibres OÜ. Diagramm: Kasum 15 miljonit suurem kui mullu

  11. Claire Lee Chennault: Theorist and Campaign Planner

    Science.gov (United States)

    1993-05-13

    at Dien Bien Phu. 7 The CIA eventually purchased his fleet and incorporated the clandestine air service into its operations. 8 Back in the dark days of...into a corner, finding himself persona non grata in both the Army and its air arm. He was dejected that the only sympathetic ear for his theories were

  12. FLOODPLAIN, LEE COUNTY, GEORGIA and INCORPORATED AREAS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  13. Floodplain Submission for Lee County, MS

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. Richard Lee Gorsuch (1937-2016).

    Science.gov (United States)

    Spilka, Bernard

    2016-09-01

    This article memorializes Richard L. Gorsuch, who passed away at age 78 on February 14, 2016. His interests and work ranged from multivariate analysis to the psychology of religion. Gorsuch penned one of the most readable volumes on the topic of measurement and factor analysis. He also developed multivariate factor programs under the title UniMult. Professionally, he was recognized as an outstanding scholar, being a fellow of both the American Psychological Association and the Society for the Scientific Study of Religion. He penned 20 to 30 volumes and over 130 professional articles. He was coauthor of The Psychology of Religion: An Empirical Approach (1985), the foremost text in the area.

  15. Models

    DEFF Research Database (Denmark)

    Juel-Christiansen, Carsten

    2005-01-01

    Artiklen fremhæver den visuelle rotation - billeder, tegninger, modeller, værker - som det privilligerede medium i kommunikationen af ideer imellem skabende arkitekter......Artiklen fremhæver den visuelle rotation - billeder, tegninger, modeller, værker - som det privilligerede medium i kommunikationen af ideer imellem skabende arkitekter...

  16. Modelling cyclonic eddies in the Delagoa Bight region

    Science.gov (United States)

    Cossa, O.; Pous, S.; Penven, P.; Capet, X.; Reason, C. J. C.

    2016-05-01

    The objective of this study is to document and shed light on the circulation around the Delagoa Bight region in the southern Mozambique Channel using a realistic modelling approach. A simulation including mesoscale forcings at the boundaries of our regional configuration succeeds in reproducing the general circulation in the region as well as the existence of a semi-permanent cyclonic eddy, whose existence is attested by in situ measurements in the Bight. Characterised by a persistent local minimum in SSH located around 26°S-34°E, this cyclonic eddy termed herein the Delagoa Bight lee eddy occurs about 25% of the time with no clear seasonal preference. Poleward moving cyclones, mostly generated further north, occur another 25% of the time in the Bight area. A tracking method applied to eddies generated in Delagoa Bight using model outputs as well as AVISO data confirms the model realism and provides additional statistics. The diameter of the eddy core varies between 61 and 147 km and the average life time exceeds 20 days. Additional model analyses reveal the systematic presence of negative vorticity in the Bight that can organise and form a Delagoa Bight lee eddy depending on the intensity of an intermittent southward flow along the shore and the spatial distribution of surrounding mesoscale features. In addition, the model solution shows other cyclonic eddies generated near Inhambane and eventually travelling through the Bight. Their generation and pathways appears to be linked with large Mozambique Channel rings.

  17. Modelling

    CERN Document Server

    Spädtke, P

    2013-01-01

    Modeling of technical machines became a standard technique since computer became powerful enough to handle the amount of data relevant to the specific system. Simulation of an existing physical device requires the knowledge of all relevant quantities. Electric fields given by the surrounding boundary as well as magnetic fields caused by coils or permanent magnets have to be known. Internal sources for both fields are sometimes taken into account, such as space charge forces or the internal magnetic field of a moving bunch of charged particles. Used solver routines are briefly described and some bench-marking is shown to estimate necessary computing times for different problems. Different types of charged particle sources will be shown together with a suitable model to describe the physical model. Electron guns are covered as well as different ion sources (volume ion sources, laser ion sources, Penning ion sources, electron resonance ion sources, and H$^-$-sources) together with some remarks on beam transport.

  18. Critical behavior of the Schwinger model with Wilson fermions

    CERN Document Server

    Azcoiti, V; Galante, A; Grillo, A F; Laliena, V

    1996-01-01

    We present a detailed analysis, in the framework of the MFA approach of the critical behaviour of the lattice Schwinger model with Wilson fermions on lattices up to 24^2, through the study of the Lee-Yang zeros and the specific heat. We find compelling evidence for a critical line ending at \\kappa = 0.25 at large \\beta. Finite size scaling analysis on lattices 8^2,12^2,16^2, 20^2 and 24^2 indicates a continuous transition. The hyperscaling relation is verified in the explored \\beta region.

  19. Nuclear Matter with Quark-Meson Coupling; 1, Comparison of Nontopological Soliton Models

    CERN Document Server

    Barnea, N; Barnea, Nir; Walhout, Timothy S.

    1999-01-01

    A system of nontopological solitons interacting through scalar and vector meson exchange is used to model nuclear matter. The models studied are of the Friedberg-Lee type, which exhibit dynamical bag formation due to the coupling of quarks to a scalar composite gluon field. It is shown that the chiral chromodielectric model gives the best fit to the empirical data. The presence of the scalar meson guarantees saturation and an increase of the proton charge radius with nuclear density consistent with the EMC effect.

  20. model

    African Journals Online (AJOL)

    trie neural construction oí inoiviouo! unci communal identities in ... occurs, Including models based on Information processing,1 ... Applying the DSM descriptive approach to dissociation in the ... a personal, narrative path lhal connects personal lo ethnic ..... managed the problem in the context of the community, using a.

  1. Modeling the shock initiation of PBX 9501 in ALE3D

    Energy Technology Data Exchange (ETDEWEB)

    Mace, Jonathan [Los Alamos National Laboratory; Mas, Eric M [Los Alamos National Laboratory; Leininger, Lara [HINMAN CONSULTING; Springer, H Keo [ONE BUSH STREET

    2008-01-01

    The SMIS (Specific Munitions Impact Scenario) experimental series performed at Los Alamos National Laboratory has determined the 3-dimensional shock initiation behavior of the HMX based heterogeneous high explosive, PBX9501, which has a PMMA case and a steel impact cover. The SMIS real-world shot scenario creates a unique test-bed because many of the fragments arrive at the impact plate off-center and at an angle of impact. The goal of this model validation experiments is to demonstrate the predictive capability of the Tarver-Lee Ignition and Growth (I&G) reactive flow model in this fully 3-dimensional regime of Shock to Detonation Transition (SDT).

  2. A new numerical method to solve non-linear coupled differential equations for various field theory models

    Science.gov (United States)

    Post, U.; Kunz, J.; Mosel, U.

    1987-01-01

    We present a new method for the solution of the coupled differential equations which have to be solved in various field-theory models. For the solution of the eigenvalue problem a modified version of the imaginary time-step method is applied. Using this new scheme we prevent the solution from running into the negative-energy sea. For the boson fields we carry out a time integration with an additional damping term which forces the field to converge against the static solution. Some results are given for the Walecka model and the Friedberg-Lee model.

  3. Maturity Models in the Age of Digital Diversity

    DEFF Research Database (Denmark)

    Andersen, Kim Normann; Henriksen, Helle Zinner; Medaglia, Rony

    2012-01-01

    This chapter proposes a reorientation of the e-government maturity models by focusing on the activities rather than on the formal organizational structures and have the citizens as the key stakeholder for future e-government investments. We draw upon a discussion on the limitations of the popular e......-government maturity model by Layne and Lee [1] included in the proposal of the Public Sector Process Rebuilding (PPR) model [2, 3]. The adoption and adaptation of Web 2.0 platforms and location-based services, and the parallel extension of conventional technologies as SMS and web-based self-services, challenge...... the view that e-government is focused in a formal organizational span of control. We propose a refined operationalization of the PPR maturity model, arguing that the activities and individual workers within the public sector and the citizens using and co-producing the public services will be the vehicle...

  4. Maturity Models in the Age of Digital Diversity

    DEFF Research Database (Denmark)

    Andersen, Kim Normann; Henriksen, Helle Zinner; Medaglia, Rony

    2012-01-01

    the view that e-government is focused in a formal organizational span of control. We propose a refined operationalization of the PPR maturity model, arguing that the activities and individual workers within the public sector and the citizens using and co-producing the public services will be the vehicle......This chapter proposes a reorientation of the e-government maturity models by focusing on the activities rather than on the formal organizational structures and have the citizens as the key stakeholder for future e-government investments. We draw upon a discussion on the limitations of the popular e......-government maturity model by Layne and Lee [1] included in the proposal of the Public Sector Process Rebuilding (PPR) model [2, 3]. The adoption and adaptation of Web 2.0 platforms and location-based services, and the parallel extension of conventional technologies as SMS and web-based self-services, challenge...

  5. A 3-D Finite-Volume Non-hydrostatic Icosahedral Model (NIM)

    Science.gov (United States)

    Lee, Jin

    2014-05-01

    The Nonhydrostatic Icosahedral Model (NIM) formulates the latest numerical innovation of the three-dimensional finite-volume control volume on the quasi-uniform icosahedral grid suitable for ultra-high resolution simulations. NIM's modeling goal is to improve numerical accuracy for weather and climate simulations as well as to utilize the state-of-art computing architecture such as massive parallel CPUs and GPUs to deliver routine high-resolution forecasts in timely manner. NIM dynamic corel innovations include: * A local coordinate system remapped spherical surface to plane for numerical accuracy (Lee and MacDonald, 2009), * Grid points in a table-driven horizontal loop that allow any horizontal point sequence (A.E. MacDonald, et al., 2010), * Flux-Corrected Transport formulated on finite-volume operators to maintain conservative positive definite transport (J.-L, Lee, ET. Al., 2010), *Icosahedral grid optimization (Wang and Lee, 2011), * All differentials evaluated as three-dimensional finite-volume integrals around the control volume. The three-dimensional finite-volume solver in NIM is designed to improve pressure gradient calculation and orographic precipitation over complex terrain. NIM dynamical core has been successfully verified with various non-hydrostatic benchmark test cases such as internal gravity wave, and mountain waves in Dynamical Cores Model Inter-comparisons Projects (DCMIP). Physical parameterizations suitable for NWP are incorporated into NIM dynamical core and successfully tested with multimonth aqua-planet simulations. Recently, NIM has started real data simulations using GFS initial conditions. Results from the idealized tests as well as real-data simulations will be shown in the conference.

  6. Edward Lee Thorndike e a conformação de um novo padrão pedagógico para o ensino de matemática (Estados Unidos, primeiras décadas do século XX)

    OpenAIRE

    Santos, Ivanete Batista dos

    2006-01-01

    Neste trabalho, é examinada a produção de Edward Lee Thorndike relativa ao ensino de Aritmética, Álgebra e Geometria que teve significativas implicações nas reformas do ensino de Matemática nos Estados Unidos, a partir das primeiras décadas do século XX. A hipótese adotada foi que autor conformou um novo padrão para o ensino de Matemática norte-americano nesse período. Foram analisadas as publicações de Thorndike relativas aos conteúdos matemáticos, à Psicologia e à Educação, com o objetivo d...

  7. Influence of Rubrus Suarissimus S.Lee Dental Care Buccal Tablets on Glucosyltransferase and Water-insoluble Glucan%甜茶护齿含片对葡糖基转移酶和细胞外水不溶性多糖的影响

    Institute of Scientific and Technical Information of China (English)

    韦姗妮; 何克新; 黄丽微; 陈小芳

    2012-01-01

    目的 研究甜茶护齿含片对变形链球菌葡糖基转移酶和细胞外水不溶性多糖合成的影响.方法 将甜茶护齿含片磨成粉末,并采用二倍稀释法,用含1%蔗糖的胰蛋白胨-胰蛋白月示-酵母提取物(TTY)液体培养基,配制成5个浓度的实验组;并以含1%蔗糖的TTY液体培养基作为阴性对照组.加入变形链球菌菌液,厌氧培养48 h后离心,一份透析提取葡糖基转移酶,采用Somogyi法和考马斯亮蓝法分别测定还原糖和总蛋白含量,计算酶活性和比活力大小;另一份弃上清液留沉淀,采用蒽酮法测定水不溶性多糖的含量.结果 随着甜茶护齿含片混悬液浓度的升高,葡糖基转移酶活性和水不溶性多糖含量逐渐降低(P<0.05),除0.313 g/50 ml浓度组外,葡糖基转移酶各实验组与对照组酶活性及比活力之间差异有统计学意义(P<0.05),各实验组与对照组水不溶性多糖含量差异有统计学意义(P<0.05).结论 甜茶护齿含片对变形链球菌葡糖基转移酶和细胞外水不溶性多糖的合成具有显著抑制作用.%Objective To study the influence of Rubrus Suarissimus S. Lee dental care buccal tablets on glucosyltransferase( GTF ) and extra-cellular synthesis of water-insoluble glucan( WIG ) of Streptococcus mutans( S. Mutans ). Methods Rubrus Suarissimus S. Lee dental care buccal tablets were lapped into powder and used in the experimental group with 5 concentrations prepared with TTY which contained with 1% glucose,while TTY culture with 1% glucose as the negative control. S. Mutans was added into each group,and then centrifugation was performed after 48 hours' anaerobical culturing. One batch was that the supernatants were collected to extract GTF,which was used to measure the content of reducing sugar and total protein by Smoyi method and Bradford method,then figured out enzyme activity and the specific activity. The other batch was that the supernatants were abandoned and the

  8. Scaling of cluster heterogeneity in the two-dimensional Potts model.

    Science.gov (United States)

    Lv, Jian-Ping; Yang, Xianqing; Deng, Youjin

    2012-08-01

    Cluster heterogeneity, the number of clusters of mutually distinct sizes, has been recently studied for explosive percolation and standard percolation [H. K. Lee et al., Phys. Rev. E 84, 020101(R) (2011); J. D. Noh et al., Phys. Rev. E 84, 010101(R) (2011)]. In this work we study the scaling of various quantities related with cluster heterogeneity in a broader context of two-dimensional q-state Potts model. We predict, via an analytic approach, the critical exponents for most of the measured quantities, and confirm these predications for various q values using extensive Monte Carlo simulations.

  9. THE PROPOSED QUADRUPLE SYSTEM SZ HERCULIS: REVISED LITE MODEL AND ORBITAL STABILITY STUDY

    Energy Technology Data Exchange (ETDEWEB)

    Hinse, Tobias Cornelius; Lee, Jae Woo; Lee, Chung-Uk [Advanced Astronomy and Space Science Division, Korea Astronomy and Space Science Institute, Daejeon 305-348 (Korea, Republic of); Gozdziewski, Krzysztof [Nicolaus Copernicus University, Torun Centre for Astronomy, PL-87-100 Torun (Poland); Haghighipour, Nader, E-mail: tchinse@gmail.com [Institute for Astronomy and NASA Astrobiology Institute, University of Hawaii, 96822 HI (United States)

    2012-08-15

    In a recent study, Lee et al. presented new photometric follow-up timing observations of the semidetached binary system SZ Herculis and proposed the existence of two hierarchical cirumbinary companions. Based on the light-travel time effect, the two low-mass M-dwarf companions are found to orbit the binary pair on moderate to high eccentric orbits. The derived periods of these two companions are close to a 2:1 mean-motion orbital resonance. We have studied the stability of the system using the osculating orbital elements as presented by Lee et al. Results indicate an orbit-crossing architecture exhibiting short-term dynamical instabilities leading to the escape of one of the proposed companions. We have examined the system's underlying model parameter space by following a Monte Carlo approach and found an improved fit to the timing data. A study of the stability of our best-fitting orbits also indicates that the proposed system is generally unstable. If the observed anomalous timing variations of the binary period is due to additional circumbinary companions, then the resulting system should exhibit a long-term stable orbital configuration much different from the orbits suggested by Lee et al. We, therefore, suggest that based on Newtonian-dynamical considerations, the proposed quadruple system cannot exist. To uncover the true nature of the observed period variations of this system, we recommend future photometric follow-up observations that could further constrain eclipse-timing variations and/or refine light-travel time models.

  10. Analytical and Empirical Modeling of Wear and Forces of CBN Tool in Hard Turning - A Review

    Science.gov (United States)

    Patel, Vallabh Dahyabhai; Gandhi, Anishkumar Hasmukhlal

    2016-06-01

    Machining of steel material having hardness above 45 HRC (Hardness-Rockwell C) is referred as a hard turning. There are numerous models which should be scrutinized and implemented to gain optimum performance of hard turning. Various models in hard turning by cubic boron nitride tool have been reviewed, in attempt to utilize appropriate empirical and analytical models. Validation of steady state flank and crater wear model, Usui's wear model, forces due to oblique cutting theory, extended Lee and Shaffer's force model, chip formation and progressive flank wear have been depicted in this review paper. Effort has been made to understand the relationship between tool wear and tool force based on the different cutting conditions and tool geometries so that appropriate model can be used according to user requirement in hard turning.

  11. A numerical stability investigation of strong ZND detonations for Majda's model

    CERN Document Server

    Barker, Blake

    2010-01-01

    We carry out a systematic numerical stability analysis of ZND detonations of Majda's model with Arrhenius-type ignition function, a simplified model for reacting flow, as heat release and activation energy are varied. Our purpose is, first, to answer a question of Majda whether oscillatory instabilities can occur for high activation energies as in the full reacting Euler equations, and, second, to test the efficiency of various versions of a numerical eigenvalue-finding scheme suggested by Humpherys and Zumbrun against the standard method of Lee and Stewart. Our results suggest that instabilities do not occur for Majda's model with Arrhenius-type ignition function, nor with a modified Arrhenius-type ignition function suggested by Lyng--Zumbrun, even in the high-activation energy limit. We find that the algorithm of Humpherys--Zumbrun is in the context of Majda's model $100$-$1,000$ times faster than the one described in the classical work of Lee and Stewart and $1$-$10$ times faster than an optimized version ...

  12. On the development of a bedform migration model

    DEFF Research Database (Denmark)

    Bartholdy, Jesper; Ernstsen, V.B.; Flemming, B.W.;

    2008-01-01

    A model linking subaqueous dune migration to the effective (grain related) shear stress is calibrated by means of flume data for bedform dimensions and migration rates. The effective shear stress is calculated on the basis of a new method assuming a near-bed layer above the mean bed level in which...... the current velocity accelerates towards the bedform crest. As a consequence, the effective bed shear stress corresponds to the shear stress acting directly on top of the bedform. The model operates with the critical Shields stress as a function of grain size. It predicts the deposition (volume per unit time...... and width) of natural packed bed material on the bedform lee side, qbcrest. The model is simple, built on a rational description of simplified sediment mechanics, and its calibration constant can be explained in accordance with estimated values of the physical constants on which it is based. Predicted...

  13. Modeling and Simulation Environment for Critical Infrastructure Protection

    Science.gov (United States)

    2006-06-20

    Alabama, April 2-6, 2006 (CD- ROM) 77. Somesh Jha, Louis Kruger, Thomas G. Kurtz, Yoonjung Lee, Adam Smith , and Zhengxiao Wu, Optimal filtering...Association. Maastricht, the Netherlands. 87. Somesh Jha, Louis Kruger, Thomas G. Kurtz, Yoonjung Lee, Adam Smith , and Zhengxiao Wu, Optimal filtering...and Prospects, Siena, Italy, 2005 140. Thomas G. Kurtz, Somesh Jha, Yoonjung Lee, and Adam Smith . Optimal Filtering Techniques for Intrusion

  14. Is there a P-wave bound state of W sub L W sub L On the dynamical generation of a. rho. meson in the. sigma. model

    Energy Technology Data Exchange (ETDEWEB)

    Atkinson, D. (Fermi National Accelerator Lab., Batavia, IL (United States) Institute for Theoretical Physics, Groningen, The Netherlands (NL)); Harada, M. (Nagoya Univ. (Japan). Dept. of Physics); Sanda, A.I. (Superconducting Super Collider Lab., Dallas, TX (United States) Rockefeller Univ., New York, NY (United States). Dept. of Physics)

    1991-10-01

    We investigate the possibility that the Higgs lagrangian predicts the existence of a P-wave W{sub L}W{sub L} resonance. This problem is equivalent to studying the formation of the {rho} meson by the dynamics contained in the {sigma} model. Using the Pade approximation, Basdevant and Lee had claimed that {rho} is generated dynamically. We show that their result, while computationally correct, is not significant, because of the position of the Landau ghost. For the same reason, a W{sub L}W{sub L} P-wave resonance below 2 TeV is not expected, unless the standard model is violated. 10 refs., 8 figs.

  15. Study on Inhibitory of Rubrus Suarissimus S. Lee Dental Care Buccal Tablets on Adhesion and Acidogenicity of Streptococcus Mutans In Vitro%甜茶护齿含片对变形链球菌黏附与产酸影响的研究

    Institute of Scientific and Technical Information of China (English)

    陈小芳; 何克新; 黄丽微; 韦姗妮

    2011-01-01

    目的 研究甜茶护齿含片对口腔致龋变形链球菌的黏附与产酸的影响,探讨甜茶护齿含片的护齿机制.方法 采用二倍稀释法将甜茶护齿含片研磨成粉末,并配制5个浓度组,检测不同浓度甜茶护齿含片对变形链球菌黏附抑制效果,及其对致龋菌、变形链球菌产酸能力的影响,并设1%蔗糖TTY液体培养基作为对照.厌氧培养48 h后用分光光度计测OD值及采用pH酸度计测其pH值.结果 不同浓度甜茶护齿含片混悬液对变形链球菌黏附能力OD值比较差异有统计学意义(P<0.05),随着深度升高OD值逐渐减小.不同浓度甜茶护齿含片混悬液对变形链球菌产酸均有一定的抑制作用.结论 甜茶护齿含片具有影响变形链球菌的生长代谢能力,可作为一种健齿护齿的保健品.%Objective To investigate the effects of Rubrus Suarissimus S. Lee dental care buccal tablets ( RSL )on adhesion and acidogenicity of Streptococcus mutans and explore its anticariogenic activities. Methods The RSL was lapped into powder and diluted into five groups of different concentration by two-fold dilution, its inhibitory effects on adhesion and acidogenicity of Streptococcus mutans were detected. 1% sucrose tryptone-tryptose-yeast( TTY )medium was used as control. After Streptococcus mutans incubated under aerobic fementation circumstances for 48 hours,the optical density were detected by spectrophotometer and △pH with pH meter. Results Different concentrations of Rubrus Suarissimus S. Lee dental care buccal tablets had different effects on the optical density of adhesive capacity. The optical density increased significantly with the concentrations of Rubrus Suarissimus S. Lee dental care buccal tablets. The RSL could inhibit the adherence of Streptococcus mutans significantly and induce the acidogenicity of Streptococcus mutans.Conclusion The RSL could influence the metabolism of Streptococcus mutans and could be further researched as a

  16. Novel experimental Pseudomonas aeruginosa lung infection model mimicking long-term host-pathogen interactions in cystic fibrosis

    DEFF Research Database (Denmark)

    Moser, Claus; van Gennip, Maria; Bjarnsholt, Thomas;

    2009-01-01

    Moser C, van Gennip M, Bjarnsholt T, Jensen PO, Lee B, Hougen HP, Calum H, Ciofu O, Givskov M, Molin S, Hoiby N. Novel experimental Pseudomonas aeruginosa lung infection model mimicking long-term host-pathogen interactions in cystic fibrosis. APMIS 2009; 117: 95-107. The dominant cause of premature...... death in patients suffering from cystic fibrosis (CF) is chronic lung infection with Pseudomonas aeruginosa. The chronic lung infection often lasts for decades with just one clone. However, as a result of inflammation, antibiotic treatment and different niches in the lungs, the clone undergoes...

  17. Representation of the Resonances of a Relativistic Quantum Field Theoretical Model in Lax-Phillips Scattering Theory

    CERN Document Server

    Strauss, Y

    1999-01-01

    We apply the quantum Lax-Phillips scattering theory to a relativistically covariant quantum field theoretical form of the (soluble) Lee model. We construct the translation representations with the help of the wave operators, and show that the resulting Lax-Phillips $S$-matrix is an inner function (the Lax-Phillips theory is essentially a theory of translation invariant subspaces). We then discuss the non-relativistic limit of this theory, and show that the resulting kinematic relations coincide with the conditions required for the Galilean description of a decaying system.

  18. Mesoscale Modeling of Impact Compaction of Primitive Solar System Solids

    CERN Document Server

    Davison, Thomas M; Bland, Philip A

    2016-01-01

    We have developed a method for simulating the mesoscale compaction of early solar system solids in low velocity impact events, using the iSALE shock physics code. Chondrules are represented by nonporous disks, placed within a porous matrix. By simulating impacts into bimodal mixtures over a wide range of parameter space (including the chondrule-to-matrix ratio, the matrix porosity and composition and the impact velocity), we have shown how each of these parameters influences the shock processing of heterogeneous materials. The temperature after shock processing shows a strong dichotomy: matrix temperatures are elevated much higher than the chondrules, which remain largely cold. Chondrules can protect some matrix from shock compaction, with shadow regions in the lee side of chondrules exhibiting higher porosity that elsewhere in the matrix. Using the results from this mesoscale modelling, we show how the $\\varepsilon-\\alpha$ porous compaction model parameters depend on initial bulk porosity. We also show that ...

  19. A Soluble Model for Scattering and Decay in Quaternionic Quantum Mechanics II Scattering

    CERN Document Server

    Horwitz, L P

    1994-01-01

    In a previous paper, it was shown that a soluble model can be constructed for the description of a decaying system in analogy to the Lee-Friedrichs model of complex quantum theory. It is shown here that this model also provides a soluble scattering theory, and therefore constitutes a model for a decay scattering system. Generalized second resolvent equations are obtained for quaternionic scattering theory. It is shown explicitly for this model, in accordance with a general theorem of Adler, that the scattering matrix is complex subalgebra valued. It is also shown that the method of Adler, using an effective optical potential in the complex sector to describe the effect of the quaternionic interactions, is equivalent to the general method of Green's functions described here.

  20. 孕14周至16周服用米非司酮米索前列醇片与利凡诺尔针囊!注射引产效果研究%Effect of Noel Lee intravascular injection induction while taking Mifepristone and misoprostol tablets on 1 4 -1 6 weeks’pregnancy woman

    Institute of Scientific and Technical Information of China (English)

    邱飞君; 劳佩薇; 王芬萍; 付燕华

    2015-01-01

    目的:研究和分析孕14周至16周服用米非司酮米索前列醇片与利凡诺尔针囊#注射引产的效果。方法:选取70例2013年1月至2013年6月来我院进行引产的孕14周到16周的患者,将其随机分  成对照组与试验组,每组各35例孕14周到16周患者。试验组的孕14周到16周患者采用米非司酮米索前列醇片配伍利凡诺尔针囊#注射引产方法,对照组孕14周到16周的患者使用单独的利凡诺针囊内注射引产方法。将试验组与对照组两组孕14周到16周的产妇患者引产后的成功率、产后出血量以及胎盘胎膜残留量等进行分析与对比。结果:试验组的孕妇患者中有35例患者引产成功,引产成功率达到100%;对照组的孕妇患者中有30例患者引产成功,引产成功率达到86%;其中对照组的产后出血量以及胎盘胎膜残留量显著高于试验组的患者,具有明显的区别。因此,试验组的孕14周到16周产妇患者的引产成功率以及产后出血量和胎盘胎膜残留量和对照组有显著差别,具有统计学意义(P<0.05)。结论:孕14周至16周孕妇患者服用米非司酮米索前列醇片配伍利凡诺尔针囊#注射引产方法,可以有效的提升中期妊娠引产成功率,值得在临床医学上大力推广。%Objectives:To study and analyze the effect of Noel Lee intravascular injection induction while taking Mifepristone and misoprostol tablets on 1 4 -1 6 weeks’pregnancy woman.Methods:70 cases of 1 4 -1 6 weeks’pregnancy women in our hospital,from January 201 3 to June 201 3,were randomly divided into control group and test group,35 cases in each group.Test group was given Noel Lee intravascular injection induction while taking Mifepristone and misoprostol tablets.Control group was only given Noel Lee intravascular injection induction. The success rate of the two groups,postpartum hemorrhage and retained placenta volume were compared and