Lasing by driven atoms-cavity system in collective strong coupling regime.

Science.gov (United States)

Sawant, Rahul; Rangwala, S A

2017-09-12

The interaction of laser cooled atoms with resonant light is determined by the natural linewidth of the excited state. An optical cavity is another optically resonant system where the loss from the cavity determines the resonant optical response of the system. The near resonant combination of an optical Fabry-Pérot cavity with laser cooled and trapped atoms couples two distinct optical resonators via light and has great potential for precision measurements and the creation of versatile quantum optics systems. Here we show how driven magneto-optically trapped atoms in collective strong coupling regime with the cavity leads to lasing at a frequency red detuned from the atomic transition. Lasing is demonstrated experimentally by the observation of a lasing threshold accompanied by polarization and spatial mode purity, and line-narrowing in the outcoupled light. Spontaneous emission into the cavity mode by the driven atoms stimulates lasing action, which is capable of operating as a continuous wave laser in steady state, without a seed laser. The system is modeled theoretically, and qualitative agreement with experimentally observed lasing is seen. Our result opens up a range of new measurement possibilities with this system.

Realization of collective strong coupling with ion Coulomb crystals in an optical cavity

DEFF Research Database (Denmark)

Herskind, Peter Fønss; Dantan, Aurélien; Marler, Joan

2009-01-01

Cavity quantum electrodynamics (CQED) focuses on understanding the interactions between matter and the electromagnetic field in cavities at the quantum level 1, 2 . In the past years, CQED has attracted attention 3, 4, 5, 6, 7, 8, 9 especially owing to its importance for the field of quantum...... information 10 . At present, photons are the best carriers of quantum information between physically separated sites 11, 12 and quantum-information processing using stationary qubits 10 is most promising, with the furthest advances having been made with trapped ions 13, 14, 15 . The implementation of complex...... quantum-information-processing networks 11, 12 hence requires devices to efficiently couple photons and stationary qubits. Here, we present the first CQED experiments demonstrating that the collective strong-coupling regime 2 can be reached in the interaction between a solid in the form of an ion Coulomb...

Scandinavian exceptionalism in anti-doping within sport

DEFF Research Database (Denmark)

Tangen, Jan Ove; Møller, Verner

2017-01-01

Why are Scandinavian countries so committed to the cause of antidoping? In this paper, we propose that the Scandinavian mentality, formed by paternalistic welfare models, is a useful framework for understanding anti-doping. We focus on anti-doping policy and work in Norway and Denmark. We start w......: the Norwegian self-image and its impact on politics, and Danish amateurism and corrupt idealism. We conclude that Nordic antidoping is pursued with rigour and determination, and suggest this is rooted in the Nordic countries’ exceptional social-welfare ideology and strong paternalism....

Fingerprints of exceptional points in the survival probability of resonances in atomic spectra

International Nuclear Information System (INIS)

Cartarius, Holger; Moiseyev, Nimrod

2011-01-01

The unique time signature of the survival probability exactly at the exceptional point parameters is studied here for the hydrogen atom in strong static magnetic and electric fields. We show that indeed the survival probability S(t)=| | 2 decays exactly as |1-at| 2 e -Γ EP t/(ℎ/2π) , where Γ EP is associated with the decay rate at the exceptional point and a is a complex constant depending solely on the initial wave packet that populates exclusively the two almost degenerate states of the non-Hermitian Hamiltonian. This may open the possibility for a first experimental detection of exceptional points in a quantum system.

Fingerprints of exceptional points in the survival probability of resonances in atomic spectra

Science.gov (United States)

Cartarius, Holger; Moiseyev, Nimrod

2011-07-01

The unique time signature of the survival probability exactly at the exceptional point parameters is studied here for the hydrogen atom in strong static magnetic and electric fields. We show that indeed the survival probability S(t)=||2 decays exactly as |1-at|2e-ΓEPt/ℏ, where ΓEP is associated with the decay rate at the exceptional point and a is a complex constant depending solely on the initial wave packet that populates exclusively the two almost degenerate states of the non-Hermitian Hamiltonian. This may open the possibility for a first experimental detection of exceptional points in a quantum system.

Numerical Calculation of the Phase Space Density for the Strong-Strong Beam-Beam Interaction

International Nuclear Information System (INIS)

Sobol, A.; Ellison, J.A.

2003-01-01

We developed a parallel code to calculate the evolution of the 4D phase space density of two colliding beams, which are coupled via the collective strong-strong beam-beam interaction, in the absence of diffusion and damping, using the Perron-Frobenius (PF) operator technique

Adherence of bacteria to mucus collected from different parts of the reproductive tract of heifers and cows.

Science.gov (United States)

Styková, E; Nemcová, R; Valocký, I; Novotný, F; Guba, P

2013-11-01

In the present study, we examined the adherence of indigenous vaginal bacteria, probiotic strains, and metritis pathogens to mucus collected from different parts of the reproductive tracts of heifers and cows and compared their adherence with the bacterial adherence to mucus collected from the stomach and large intestine of pigs. Most of the vaginal strains adhered to mucus collected from different parts of the reproductive tract and strongly adhered to gastric mucus, with the exception of Lactobacillus buchneri 24S8. Only Lactobacillus mucosae 29S8, Enterococcus faecium E21, and E. faecium EAC adhered to colonic mucus. Probiotic strains adhered strongly to mucus collected from the reproductive tract and gastric mucus but did not adhere to colonic mucus. Pathogenic strains were adherent to vaginal, uterine horn, and gastric mucus, except Escherichia coli O8:K88ab:H9 (65), Fusobacterium necrophorum, and Gardnerella vaginalis, which adhered to uterine cervix mucus. Only Kocuria kristinae and G. vaginalis adhered to uterine body mucus; E. coli O149:K88ac (EC) adhered to colonic mucus. The strains did not exhibit host specificity but rather strain specificity. The ability to adhere to mucus was a characteristic unique to each strain. To our knowledge, this is the first report regarding in vitro adherence of GRAS (Generally Regarded As Safe) lactobacilli isolated from different sources to mucus collected from different parts of the reproductive tract.

MFTF exception handling system

International Nuclear Information System (INIS)

Nowell, D.M.; Bridgeman, G.D.

1979-01-01

In the design of large experimental control systems, a major concern is ensuring that operators are quickly alerted to emergency or other exceptional conditions and that they are provided with sufficient information to respond adequately. This paper describes how the MFTF exception handling system satisfies these requirements. Conceptually exceptions are divided into one of two classes. Those which affect command status by producing an abort or suspend condition and those which fall into a softer notification category of report only or operator acknowledgement requirement. Additionally, an operator may choose to accept an exception condition as operational, or turn off monitoring for sensors determined to be malfunctioning. Control panels and displays used in operator response to exceptions are described

An Exceptional Memory

Science.gov (United States)

Hunter, Ian M. L.

1977-01-01

An account is given of the exceptional memory of the late Professor A. C. Aitken who was also a distinguished mathematician and mental calculator. Compared with Shereshevskii, another man with exceptional memory, he shows the scholar's reliance on conceptual mapping rather than the mnemonist's reliance on perceptual chaining. (Editor)

Collective hypersonic excitations in strongly multiple scattering colloids.

Science.gov (United States)

Still, T; Gantzounis, G; Kiefer, D; Hellmann, G; Sainidou, R; Fytas, G; Stefanou, N

2011-04-29

Unprecedented low-dispersion high-frequency acoustic excitations are observed in dense suspensions of elastically hard colloids. The experimental phononic band structure for SiO(2) particles with different sizes and volume fractions is well represented by rigorous full-elastodynamic multiple-scattering calculations. The slow phonons, which do not relate to particle resonances, are localized in the surrounding liquid medium and stem from coherent multiple scattering that becomes strong in the close-packing regime. Such rich phonon-matter interactions in nanostructures, being still unexplored, can open new opportunities in phononics.

Strong Electroweak Symmetry Breaking

CERN Document Server

Grinstein, Benjamin

2011-01-01

Models of spontaneous breaking of electroweak symmetry by a strong interaction do not have fine tuning/hierarchy problem. They are conceptually elegant and use the only mechanism of spontaneous breaking of a gauge symmetry that is known to occur in nature. The simplest model, minimal technicolor with extended technicolor interactions, is appealing because one can calculate by scaling up from QCD. But it is ruled out on many counts: inappropriately low quark and lepton masses (or excessive FCNC), bad electroweak data fits, light scalar and vector states, etc. However, nature may not choose the minimal model and then we are stuck: except possibly through lattice simulations, we are unable to compute and test the models. In the LHC era it therefore makes sense to abandon specific models (of strong EW breaking) and concentrate on generic features that may indicate discovery. The Technicolor Straw Man is not a model but a parametrized search strategy inspired by a remarkable generic feature of walking technicolor,...

Collective excitations of strongly coupled bilayer charged Bose liquids in the third-frequency-moment sum rule

International Nuclear Information System (INIS)

Tas, Murat; Tanatar, B.

2008-01-01

We calculate the collective excitation modes of strongly coupled bilayer charged Bose systems. We employ the dielectric matrix formulation to study the correlation effects within the random-phase approximation (RPA), the self consistent field approximation Singwi, Tosi, Land, and Sjoelander (STLS), and the quasilocalized charge approximation (QLCA), which satisfies the third-frequency-moment ( 3 >) sum rule. We find that the QLCA predicts a long-wavelength correlation-induced energy gap in the out-of-phase plasmon mode, similar to the situation in electronic bilayer systems. The energy gap and the plasmon density of states are studied as a function of interlayer separation and coupling parameter r s . The results should be helpful for experimental investigations

Exceptional confinement in G(2) gauge theory

International Nuclear Information System (INIS)

Holland, K.; Minkowski, P.; Pepe, M.; Wiese, U.-J.

2003-01-01

We study theories with the exceptional gauge group G(2). The 14 adjoint 'gluons' of a G(2) gauge theory transform as {3}, {3-bar} and {8} under the subgroup SU(3), and hence have the color quantum numbers of ordinary quarks, anti-quarks and gluons in QCD. Since G(2) has a trivial center, a 'quark' in the {7} representation of G(2) can be screened by 'gluons'. As a result, in G(2) Yang-Mills theory the string between a pair of static 'quarks' can break. In G(2) QCD there is a hybrid consisting of one 'quark' and three 'gluons'. In supersymmetric G(2) Yang-Mills theory with a {14} Majorana 'gluino' the chiral symmetry is Z(4) χ . Chiral symmetry breaking gives rise to distinct confined phases separated by confined-confined domain walls. A scalar Higgs field in the {7} representation breaks G(2) to SU(3) and allows us to interpolate between theories with exceptional and ordinary confinement. We also present strong coupling lattice calculations that reveal basic features of G(2) confinement. Just as in QCD, where dynamical quarks break the Z(3) symmetry explicitly, G(2) gauge theories confine even without a center. However, there is not necessarily a deconfinement phase transition at finite temperature

Weak and strong factorization properties in nucleus-nucleus collisions in the energy region 290-2100 MeV/nucleon

International Nuclear Information System (INIS)

La Tessa, C. . E-mail chiara@nephy.chalmers.se; Sihver, L.; Mancusi, D.; Zeitlin, C.; Miller, J.; Guetersloh, S.; Heilbronn, L.

2007-01-01

We have collected from the literature partial charge-changing cross sections for projectiles with charge 6=< Z=<26, energy ranging from 290 up to 2100 MeV/nucleon and interacting with several targets, in order to investigate weak and strong factorization properties. The same analysis methods as in our previous work have been applied to the data: we have shown that, except for hydrogen targets, weak and strong factorization properties are valid within 5%, thus confirming the results obtained in the first paper [C. La Tessa, et al., Test of weak and strong factorization in nucleus-nucleus collisions at several hundred MeV/nucleon, Nucl. Phys. A, in press]. Factorization parameters have been calculated and, in particular, target factors have been expressed with ad hoc analytical functions which describe the data trend very well. New expressions for weak and strong factorization properties can then be obtained by substituting the target factors with these functions: this formulation partially isolates the dependence of the partial charge-changing cross sections on the target and projectile mass numbers; moreover, fragment factors are the only parameters left in the formulas thus facilitating the future task of interpolating them with appropriate analytical expressions

Trends in Modern Exception Handling

Directory of Open Access Journals (Sweden)

Marcin Kuta

2003-01-01

Full Text Available Exception handling is nowadays a necessary component of error proof information systems. The paper presents overview of techniques and models of exception handling, problems connected with them and potential solutions. The aspects of implementation of propagation mechanisms and exception handling, their effect on semantics and general program efficiency are also taken into account. Presented mechanisms were adopted to modern programming languages. Considering design area, formal methods and formal verification of program properties we can notice exception handling mechanisms are weakly present what makes a field for future research.

8 CFR 258.2 - Exceptions.

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2010-01-01

... longshore work at any United States port under the exceptions provided for in paragraphs (a)(2), (b), or (c... hazardous dry bulk cargo. (i) All tankers qualify for the hazardous cargo exception, including parcel tankers, except for a tanker that has been gas-freed to transport non-hazardous dry bulk commodities. (ii...

76 FR 26317 - Agency Information Collection Activities: Proposed Collection; Comment Request

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2011-05-06

... pending NRC action to submit an information collection request to the Office of Management and Budget (OMB... individuals that will participate in the Generic Fundamentals Examination (GFE) for that calendar year. Except...

42 CFR 423.578 - Exceptions process.

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2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Exceptions process. 423.578 Section 423.578 Public..., Redeterminations, and Reconsiderations § 423.578 Exceptions process. (a) Requests for exceptions to a plan's tiered... sponsor may design its exception process so that very high cost or unique drugs are not eligible for a...

Fortum Oil and Gas 2000: Exceptionally high price of crude oil and strong refining margins

International Nuclear Information System (INIS)

Ropponen, V.-M.

2001-01-01

Fortum intends to be an active player in the structural reorganization of the oil business by utilizing its niche position in oil refining. Fortum produces sophisticated motor fuel components, which it uses in its reformulated gasolines and sells and exports to other oil companies, even to highly demanding markets in California. The increase in the price of crude oil considerably improved the results of Oil and Gas Upstream. Similarly, an improvement in the refining margin, as well as profitable shipping operations and a strong demand for gasoline components, boosted the results of Oil Refining and Marketing. (orig.)

Collective strong coupling with homogeneous Rabi frequencies using a 3D lumped element microwave resonator

International Nuclear Information System (INIS)

Angerer, Andreas; Astner, Thomas; Wirtitsch, Daniel; Majer, Johannes; Sumiya, Hitoshi; Onoda, Shinobu; Isoya, Junichi; Putz, Stefan

2016-01-01

We design and implement 3D-lumped element microwave cavities that spatially focus magnetic fields to a small mode volume. They allow coherent and uniform coupling to electron spins hosted by nitrogen vacancy centers in diamond. We achieve large homogeneous single spin coupling rates, with an enhancement of more than one order of magnitude compared to standard 3D cavities with a fundamental resonance at 3 GHz. Finite element simulations confirm that the magnetic field distribution is homogeneous throughout the entire sample volume, with a root mean square deviation of 1.54%. With a sample containing 10"1"7 nitrogen vacancy electron spins, we achieve a collective coupling strength of Ω = 12 MHz, a cooperativity factor C = 27, and clearly enter the strong coupling regime. This allows to interface a macroscopic spin ensemble with microwave circuits, and the homogeneous Rabi frequency paves the way to manipulate the full ensemble population in a coherent way.

Superior optical nonlinearity of an exceptional fluorescent stilbene dye

Energy Technology Data Exchange (ETDEWEB)

He, Tingchao [College of Physics Science and Technology, Shenzhen University, Shenzhen 518060 (China); Division of Physics and Applied Physics, Centre for Disruptive Photonic Technologies (CDPT), School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371 (Singapore); Sreejith, Sivaramapanicker; Zhao, Yanli [Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371 (Singapore); Gao, Yang; Grimsdale, Andrew C. [School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore 639798 (Singapore); Lin, Xiaodong, E-mail: linxd@szu.edu.cn, E-mail: hdsun@ntu.edu.sg [College of Physics Science and Technology, Shenzhen University, Shenzhen 518060 (China); Sun, Handong, E-mail: linxd@szu.edu.cn, E-mail: hdsun@ntu.edu.sg [Division of Physics and Applied Physics, Centre for Disruptive Photonic Technologies (CDPT), School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371 (Singapore)

2015-03-16

Strong multiphoton absorption and harmonic generation in organic fluorescent chromophores are, respectively, significant in many fields of research. However, most of fluorescent chromophores fall short of the full potential due to the absence of the combination of such different nonlinear upconversion behaviors. Here, we demonstrate that an exceptional fluorescent stilbene dye could exhibit efficient two- and three-photon absorption under the excitation of femtosecond pulses in solution phase. Benefiting from its biocompatibility and strong excited state absorption behavior, in vitro two-photon bioimaging and superior optical limiting have been exploited, respectively. Simultaneously, the chromophore could generate efficient three-photon excited fluorescence and third-harmonic generation (THG) when dispersed into PMMA film, circumventing the limitations of classical fluorescent chromophores. Such chromophore may find application in the production of coherent light sources of higher photon energy. Moreover, the combination of three-photon excited fluorescence and THG can be used in tandem to provide complementary information in biomedical studies.

Discriminative deep inelastic tests of strong interaction field theories

International Nuclear Information System (INIS)

Glueck, M.; Reya, E.

1979-02-01

It is demonstrated that recent measurements of ∫ 0 1 F 2 (x, Q 2 )dx eliminate already all strong interaction field theories except QCD. A detailed study of scaling violations of F 2 (x, Q 2 ) in QCD shows their insensitivity to the gluon content of the hadron at presently measured values of Q 2 . (orig.) [de

School Collective Efficacy and Bullying Behaviour: A Multilevel Study

Science.gov (United States)

Olsson, Gabriella; Låftman, Sara Brolin; Modin, Bitte

2017-01-01

As with other forms of violent behaviour, bullying is the result of multiple influences acting on different societal levels. Yet the majority of studies on bullying focus primarily on the characteristics of individual bullies and bullied. Fewer studies have explored how the characteristics of central contexts in young people’s lives are related to bullying behaviour over and above the influence of individual-level characteristics. This study explores how teacher-rated school collective efficacy is related to student-reported bullying behaviour (traditional and cyberbullying victimization and perpetration). A central focus is to explore if school collective efficacy is related similarly to both traditional bullying and cyberbullying. Analyses are based on combined information from two independent data collections conducted in 2016 among 11th grade students (n = 6067) and teachers (n = 1251) in 58 upper secondary schools in Stockholm. The statistical method used is multilevel modelling, estimating two-level binary logistic regression models. The results demonstrate statistically significant between-school differences in all outcomes, except traditional bullying perpetration. Strong school collective efficacy is related to less traditional bullying perpetration and less cyberbullying victimization and perpetration, indicating that collective norm regulation and school social cohesion may contribute to reducing the occurrence of bullying. PMID:29261114

School Collective Efficacy and Bullying Behaviour: A Multilevel Study

Directory of Open Access Journals (Sweden)

Gabriella Olsson

2017-12-01

Full Text Available As with other forms of violent behaviour, bullying is the result of multiple influences acting on different societal levels. Yet the majority of studies on bullying focus primarily on the characteristics of individual bullies and bullied. Fewer studies have explored how the characteristics of central contexts in young people’s lives are related to bullying behaviour over and above the influence of individual-level characteristics. This study explores how teacher-rated school collective efficacy is related to student-reported bullying behaviour (traditional and cyberbullying victimization and perpetration. A central focus is to explore if school collective efficacy is related similarly to both traditional bullying and cyberbullying. Analyses are based on combined information from two independent data collections conducted in 2016 among 11th grade students (n = 6067 and teachers (n = 1251 in 58 upper secondary schools in Stockholm. The statistical method used is multilevel modelling, estimating two-level binary logistic regression models. The results demonstrate statistically significant between-school differences in all outcomes, except traditional bullying perpetration. Strong school collective efficacy is related to less traditional bullying perpetration and less cyberbullying victimization and perpetration, indicating that collective norm regulation and school social cohesion may contribute to reducing the occurrence of bullying.

School Collective Efficacy and Bullying Behaviour: A Multilevel Study.

Science.gov (United States)

Olsson, Gabriella; Låftman, Sara Brolin; Modin, Bitte

2017-12-20

As with other forms of violent behaviour, bullying is the result of multiple influences acting on different societal levels. Yet the majority of studies on bullying focus primarily on the characteristics of individual bullies and bullied. Fewer studies have explored how the characteristics of central contexts in young people's lives are related to bullying behaviour over and above the influence of individual-level characteristics. This study explores how teacher-rated school collective efficacy is related to student-reported bullying behaviour (traditional and cyberbullying victimization and perpetration). A central focus is to explore if school collective efficacy is related similarly to both traditional bullying and cyberbullying. Analyses are based on combined information from two independent data collections conducted in 2016 among 11th grade students ( n = 6067) and teachers ( n = 1251) in 58 upper secondary schools in Stockholm. The statistical method used is multilevel modelling, estimating two-level binary logistic regression models. The results demonstrate statistically significant between-school differences in all outcomes, except traditional bullying perpetration. Strong school collective efficacy is related to less traditional bullying perpetration and less cyberbullying victimization and perpetration, indicating that collective norm regulation and school social cohesion may contribute to reducing the occurrence of bullying.

Leibniz algebroids, twistings and exceptional generalized geometry

Science.gov (United States)

Baraglia, D.

2012-05-01

We investigate a class of Leibniz algebroids which are invariant under diffeomorphisms and symmetries involving collections of closed forms. Under appropriate assumptions we arrive at a classification which in particular gives a construction starting from graded Lie algebras. In this case the Leibniz bracket is a derived bracket and there are higher derived brackets resulting in an L∞-structure. The algebroids can be twisted by a non-abelian cohomology class and we prove that the twisting class is described by a Maurer-Cartan equation. For compact manifolds we construct a Kuranishi moduli space of this equation which is shown to be affine algebraic. We explain how these results are related to exceptional generalized geometry.

Exceptional phenomenology

DEFF Research Database (Denmark)

Aggerholm, Kenneth; Moltke Martiny, Kristian

Phenomenological research is in traditional terms a matter of going 'back to the things themselves', as Husserl famously stated. But if phenomenology is to renew itself in creative ways and reveal new aspects of human experience it is of value to look for a certain kind of phenomena: exceptions. ...

45 CFR 148.220 - Excepted benefits.

Science.gov (United States)

2010-10-01

... 45 Public Welfare 1 2010-10-01 2010-10-01 false Excepted benefits. 148.220 Section 148.220 Public... FOR THE INDIVIDUAL HEALTH INSURANCE MARKET Preemption; Excepted Benefits § 148.220 Excepted benefits... provision of the benefits described in paragraphs (a) and (b) of this section (or any combination of the...

Measurement and optimization of the light collection uniformity in strongly tapered PWO crystals of the PANDA detector

Science.gov (United States)

Diehl, Stefan; Bremer, Daniel; Brinkmann, Kai-Thomas; Dormenev, Valery; Eissner, Tobias; Novotny, Rainer W.; Rosenbaum, Christoph; Zaunick, Hans-Georg; PANDA Collaboration

2017-06-01

The uniformity of the light collection is a crucial parameter for detectors based on inorganic scintillation crystals to guarantee a response proportional to the deposited energy. Especially in case of tapered crystals, like they are widely used to realize a 4π geometry of electromagnetic calorimeters (EMC) in high energy physics experiments, a strong non-uniformity is introduced by an additional focusing of the scintillation light due to the tapered geometry. The paper will discuss the determination and the reduction of the non-uniformity in strongly tapered lead tungstate crystals as used for the construction of the electromagnetic calorimeter of the PANDA detector at the future Facility for Antiproton and Ion Research (FAIR). Among different concepts for an uniformization a single de-polished lateral side face provided the optimum result with a remaining non-uniformity below 5% in good agreement with similar studies for the CMS ECAL at LHC. The impact on the achievable energy resolution in the energy regime of photons below 800 MeV is discussed in detail in comparison to GEANT4 simulations. The comparison of the response of two arrays with polished and de-polished crystals, respectively, shows in the latter case a significant improvement of the constant term of the parametrization of the energy resolution down to 0.5% accompanied by only very slight increase of the statistical term.

Measurement and optimization of the light collection uniformity in strongly tapered PWO crystals of the PANDA detector

Energy Technology Data Exchange (ETDEWEB)

Diehl, Stefan; Bremer, Daniel; Brinkmann, Kai-Thomas; Dormenev, Valery; Eissner, Tobias; Novotny, Rainer W.; Rosenbaum, Christoph; Zaunick, Hans-Georg

2017-06-11

The uniformity of the light collection is a crucial parameter for detectors based on inorganic scintillation crystals to guarantee a response proportional to the deposited energy. Especially in case of tapered crystals, like they are widely used to realize a 4π geometry of electromagnetic calorimeters (EMC) in high energy physics experiments, a strong non-uniformity is introduced by an additional focusing of the scintillation light due to the tapered geometry. The paper will discuss the determination and the reduction of the non-uniformity in strongly tapered lead tungstate crystals as used for the construction of the electromagnetic calorimeter of the PANDA detector at the future Facility for Antiproton and Ion Research (FAIR). Among different concepts for an uniformization a single de-polished lateral side face provided the optimum result with a remaining non-uniformity below 5% in good agreement with similar studies for the CMS ECAL at LHC. The impact on the achievable energy resolution in the energy regime of photons below 800 MeV is discussed in detail in comparison to GEANT4 simulations. The comparison of the response of two arrays with polished and de-polished crystals, respectively, shows in the latter case a significant improvement of the constant term of the parametrization of the energy resolution down to 0.5% accompanied by only very slight increase of the statistical term.

Phase diagrams of exceptional and supersymmetric lattice gauge theories

Energy Technology Data Exchange (ETDEWEB)

Wellegehausen, Bjoern-Hendrik

2012-07-10

In this work different strongly-coupled gauge theories with and without fundamental matter have been studied on the lattice with an emphasis on the confinement problem and the QCD phase diagram at nonvanishing net baryon density as well as on possible supersymmetric extensions of the standard model of particle physics. In gauge theories with a non-trivial centre symmetry, as for instance SU(3)-Yang-Mills theory, confinement is intimately related to the centre of the gauge group, and the Polyakov loop serves as an order parameter for confinement. In QCD, this centre symmetry is explicitly broken by quarks in the fundamental representation of the gauge group. But still quarks and gluons are confined in mesons, baryons and glueballs at low temperatures and small densities, suggesting that centre symmetry is not responsible for the phenomenon of confinement. Therefore it is interesting to study pure gauge theories without centre symmetry. In this work this has been done by replacing the gauge group SU(3) of the strong interaction with the exceptional Lie group G{sub 2}, that has a trivial centre. To investigate G{sub 2} gauge theory on the lattice, a new and highly efficient update algorithm has been developed, based on a local HMC algorithm. Employing this algorithm, the proposed and already investigated first order phase transition from a confined to a deconfined phase has been confirmed, showing that indeed a first order phase transition without symmetry breaking or an order parameter is possible. In this context, also the deconfinement phase transition of the exceptional Lie groups F4 and E6 in three spacetime dimensions has been studied. It has been shown that both theories also possess a first order phase transition.

Phase diagrams of exceptional and supersymmetric lattice gauge theories

International Nuclear Information System (INIS)

Wellegehausen, Bjoern-Hendrik

2012-01-01

In this work different strongly-coupled gauge theories with and without fundamental matter have been studied on the lattice with an emphasis on the confinement problem and the QCD phase diagram at nonvanishing net baryon density as well as on possible supersymmetric extensions of the standard model of particle physics. In gauge theories with a non-trivial centre symmetry, as for instance SU(3)-Yang-Mills theory, confinement is intimately related to the centre of the gauge group, and the Polyakov loop serves as an order parameter for confinement. In QCD, this centre symmetry is explicitly broken by quarks in the fundamental representation of the gauge group. But still quarks and gluons are confined in mesons, baryons and glueballs at low temperatures and small densities, suggesting that centre symmetry is not responsible for the phenomenon of confinement. Therefore it is interesting to study pure gauge theories without centre symmetry. In this work this has been done by replacing the gauge group SU(3) of the strong interaction with the exceptional Lie group G 2 , that has a trivial centre. To investigate G 2 gauge theory on the lattice, a new and highly efficient update algorithm has been developed, based on a local HMC algorithm. Employing this algorithm, the proposed and already investigated first order phase transition from a confined to a deconfined phase has been confirmed, showing that indeed a first order phase transition without symmetry breaking or an order parameter is possible. In this context, also the deconfinement phase transition of the exceptional Lie groups F4 and E6 in three spacetime dimensions has been studied. It has been shown that both theories also possess a first order phase transition.

48 CFR 9.304 - Exceptions.

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2010-10-01

... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Exceptions. 9.304 Section... CONTRACTOR QUALIFICATIONS First Article Testing and Approval 9.304 Exceptions. Normally, testing and approval is not required in contracts for— (a) Research or development; (b) Products requiring qualification...

7 CFR 773.23 - Exception.

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2010-01-01

... SPECIAL PROGRAMS SPECIAL APPLE LOAN PROGRAM § 773.23 Exception. The Agency may grant an exception to the security requirements of this section, if the proposed change is in the best financial interest of the Government and not inconsistent with the authorizing statute or other applicable law. ...

22 CFR 126.3 - Exceptions.

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2010-04-01

... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Exceptions. 126.3 Section 126.3 Foreign Relations DEPARTMENT OF STATE INTERNATIONAL TRAFFIC IN ARMS REGULATIONS GENERAL POLICIES AND PROVISIONS... of the United States Government, the Director, Office of Defense Trade Controls may make an exception...

48 CFR 39.204 - Exceptions.

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2010-10-01

... CONTRACTING ACQUISITION OF INFORMATION TECHNOLOGY Electronic and Information Technology 39.204 Exceptions. The... standards to the maximum extent practicable; (b) Is for a national security system; (c) Is acquired by a... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Exceptions. 39.204 Section...

48 CFR 1503.602 - Exceptions.

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2010-10-01

... BUSINESS PRACTICES AND PERSONAL CONFLICTS OF INTEREST Contracts with Government Employees or Organizations... Resources Management may authorize an exception, in writing, to the policy in FAR 3.601 and 1503.601 for the... shall consult with the Designated Agency Ethics Official before authorizing any exceptions. [60 FR 38505...

48 CFR 1325.103 - Exceptions.

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2010-10-01

... FOREIGN ACQUISITION Buy American Act-Supplies 1325.103 Exceptions. (a) The designee authorized to make a... has an agreement with a foreign government providing a blanket exception to the Buy America Act is set... documentation supporting a determination that nonavailabilty of an article is likely to affect future...

7 CFR 774.24 - Exception.

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2010-01-01

... SPECIAL PROGRAMS EMERGENCY LOAN FOR SEED PRODUCERS PROGRAM § 774.24 Exception. The Agency may grant an exception to any of the requirements of this section, if the proposed change is in the best financial interest of the Government and not inconsistent with the authorizing statute or other applicable law. ...

29 CFR 1905.28 - Exceptions.

Science.gov (United States)

2010-07-01

... OCCUPATIONAL SAFETY AND HEALTH ACT OF 1970 Hearings § 1905.28 Exceptions. Within 20 days after service of a... 29 Labor 5 2010-07-01 2010-07-01 false Exceptions. 1905.28 Section 1905.28 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR RULES OF...

CMS : An exceptional load for an exceptional work site

CERN Multimedia

2001-01-01

Components of the CMS vacuum tank have been delivered to the detector assembly site at Cessy. The complete inner shell was delivered to CERN by special convoy while the outer shell is being assembled in situ. The convoy transporting the inner shell of the CMS vacuum tank took a week to cover the distance between Lons-le-Saunier and Point 5 at Cessy. Left: the convoy making its way down from the Col de la Faucille. With lights flashing, flanked by police outriders and with roads temporarily closed, the exceptional load that passed through the Pays de Gex on Monday 20 May was accorded the same VIP treatment as a leading state dignitary. But this time it was not the identity of the passenger but the exceptional size of the object being transported that made such arrangements necessary. A convoy of two lorries was needed to transport the load, an enormous 13-metre long, 6 metre diameter cylinder weighing 120 tonnes. It took a week to cover the 120 kilometres between Lons-le-Saunier and the assembly site for...

24 CFR 51.105 - Exceptions.

Science.gov (United States)

2010-04-01

... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Exceptions. 51.105 Section 51.105... ENVIRONMENTAL CRITERIA AND STANDARDS Noise Abatement and Control § 51.105 Exceptions. (a) Flexibility for non... acceptability standard of 65 decibels, the Acceptable Zone may be shifted to Ldn 70 on a case-by-case basis if...

YBa{sub 2}Cu{sub 3}O{sub 7} microwave resonators for strong collective coupling with spin ensembles

Energy Technology Data Exchange (ETDEWEB)

Ghirri, A., E-mail: alberto.ghirri@nano.cnr.it [Istituto Nanoscienze - CNR, Centro S3, via Campi 213/a, 41125 Modena (Italy); Bonizzoni, C.; Affronte, M. [Dipartimento Fisica, Informatica e Matematica, Università di Modena e Reggio Emilia and Istituto Nanoscienze - CNR, Centro S3, via Campi 213/a, 41125 Modena (Italy); Gerace, D.; Sanna, S. [Dipartimento di Fisica, Università di Pavia, via Bassi 6, 27100 Pavia (Italy); Cassinese, A. [CNR-SPIN and Dipartimento di Fisica, Università di Napoli Federico II, 80138 Napoli (Italy)

2015-05-04

Coplanar microwave resonators made of 330 nm-thick superconducting YBa{sub 2}Cu{sub 3}O{sub 7} have been realized and characterized in a wide temperature (T, 2–100 K) and magnetic field (B, 0–7 T) range. The quality factor (Q{sub L}) exceeds 10{sup 4} below 55 K and it slightly decreases for increasing fields, remaining 90% of Q{sub L}(B=0) for B = 7 T and T = 2 K. These features allow the coherent coupling of resonant photons with a spin ensemble at finite temperature and magnetic field. To demonstrate this, collective strong coupling was achieved by using di(phenyl)-(2,4,6-trinitrophenyl)iminoazanium organic radical placed at the magnetic antinode of the fundamental mode: the in-plane magnetic field is used to tune the spin frequency gap splitting across the single-mode cavity resonance at 7.75 GHz, where clear anticrossings are observed with a splitting as large as ∼82 MHz at T = 2 K. The spin-cavity collective coupling rate is shown to scale as the square root of the number of active spins in the ensemble.

7 CFR 4274.381 - Exception authority.

Science.gov (United States)

2010-01-01

... Program (IRP) § 4274.381 Exception authority. The Administrator may, in individual cases, grant an exception to any requirement or provision of this subpart which is not inconsistent with any applicable law...

28 CFR 73.2 - Exceptions.

Science.gov (United States)

2010-07-01

... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Exceptions. 73.2 Section 73.2 Judicial... GOVERNMENTS § 73.2 Exceptions. (a) The exemption provided in 18 U.S.C. 951(d)(4) for a “legal commercial...-89, 54 FR 46608, Nov. 6, 1989, as amended by Order No. 3018-2008, 73 FR 73182, Dec. 2, 2008] ...

Post-exceptionalism in public policy

DEFF Research Database (Denmark)

Daugbjerg, Carsten; Feindt, Peter H.

2017-01-01

Framing the special issue on the transformation of Food and Agricultural Policy, this article introduces the concept of post-exceptionalism in public policies. The analysis of change in agri-food policy serves as a generative example to conceptualize current transformations in sectoral policy...... arrangements in democratic welfare states. Often these arrangements have been characterized by an exceptionalist ideational framework that legitimizes a sector’s special treatment through compartmentalized, exclusive and producer-centered policies and politics. In times of internationalization of policy......-making, increasing interlinkage of policy areas and trends towards self-regulation, liberalization and performance-based policies, policy exceptionalism is under pressure to either transform or give way to (neo-)liberal policy arrangements. Post-exceptionalism denotes a partial transformation of exceptionalist ideas...

7 CFR 3565.13 - Exception authority.

Science.gov (United States)

2010-01-01

... Agency official may request and the Administrator or designee may make an exception to any requirement or... program objectives, and provided that such an exception is not inconsistent with any applicable law or...

7 CFR 4280.104 - Exception authority.

Science.gov (United States)

2010-01-01

... Efficiency Improvements Program § 4280.104 Exception authority. The Administrator may, on a case-by-case basis, make an exception to any requirement or provision of this subpart that is not inconsistent with...

44 CFR 17.625 - Exception provision.

Science.gov (United States)

2010-10-01

... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Exception provision. 17.625 Section 17.625 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY, DEPARTMENT OF HOMELAND SECURITY GENERAL GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (GRANTS) § 17.625 Exception...

Performance of a New HPV Cervi-Collect Collection and Transportation Kit

Directory of Open Access Journals (Sweden)

M. Chernesky

2012-01-01

Full Text Available Background. Liquid-based Pap (L-Pap media are used for Pap and human papillomavirus (HPV testing. Objectives. To compare RealTime High Risk (HR HPV testing of a new collection kit (Cervi-Collect and PreservCyt L-Pap specimens. To determine ease of use and safety of Cervi-Collect. Methods. L-Pap samples (n=203 were tested with HC2 and RealTime HR HPV and Cervi-Collect with RealTime HR HPV. Discordant samples were genotyped. Results. L-Pap and Cervi-Collect specimens tested by RealTime HR HPV showed 93.1% agreement (Kappa 0.86. RealTime HR HPV and HC2 on L-Pap had 90.3% agreement (Kappa 0.80. RealTime HR HPV on Cervi-Collect and HC2 on L-Pap showed 88.2% agreement (Kappa 0.76. Sixteen of 21 samples which were HC2 negative and RealTime HR HPV positive on L-Pap or Cervi-Collect contained HR HPV genotypes. Eleven healthcare collectors were in strong agreement on a usability and safety questionnaire. Conclusion. Cervi-Collect samples were easy to collect and showed strong agreement with L-Pap samples tested with RealTime HR HPV or HC2.

Digitalization of the exceptional building and decorative stones collection of the Natural History Museum Vienna

Science.gov (United States)

Ferrière, Ludovic; Steinwender, Christian

2014-05-01

The Natural History Museum Vienna (NHMV) owns one of the largest building, decorative, and ornamental stones collections in Europe. This important collection dates back to the 19th century and was initiated by curator Felix Karrer after a donation of the "Union-Baugesellschaft" (Karrer, 1892). It contains rock samples used for the construction of most of the famous buildings and monuments in Vienna and in the entire Austria and surrounding countries, as well as from other famous constructions and antique (Egyptian, Greek, Roman, etc.) monuments in the world. Decorative stones that were used for the inside parts of buildings as well as artificial materials, such as stucco, tiles, and building-materials like gravel, are also part of this collection. Unfortunately, most specimens of this collection cannot be displayed at the NHMV (i.e., only 500 specimens are visible in the display Hall I) and are therefore preserved in storage rooms, and not accessible to the public. The main objective of our project of digitalization is to share our rock collection and all treasures it contains with the large majority of interested persons, and especially to provide knowledge on these rocks for people who need this information, such as people who work in cultural, architectural, scientific, and commercial fields. So far 4,500 samples from our collection have been processed with the support of the Open Up! project (Opening up the Natural History Heritage for Europeana). Our database contains all information available on these samples (including e.g., the name of the rock, locality, historic use, heritage utilization, etc.), high-quality digital photographs (with both top and bottom sides of the samples), and scanned labels (both "old" NHMV labels and other (original) labels attached to the samples). We plan to achieve the full digitalization of our unique collection within the next two years and to develop a website to provide access to the content of our database (if adequate

Exceptions to the Stark law: practical considerations for surgeons.

Science.gov (United States)

Satiani, Bhagwan

2006-03-01

The purpose of this study was to provide an understanding of the applicable legislative exceptions to prohibitions under the Stark law, which governs common legitimate business relationships in surgical practice. Stark I and II prohibits all referrals (and claims) for the provision of designated health services for federal reimbursement if a physician or immediate family member has any financial relationship with the entity. Regardless of intent (unlike the antikickback statute), any financial relationship is illegal unless specifically excepted by statute. These exceptions are relevant to ownership, compensation arrangements, or both. The most important ones relevant to surgeons are as follows: physician service exception (services rendered in an intragroup referral); in-office ancillary services exception (office-based vascular laboratory); the whole hospital exception (ownership interest in a hospital or department); lease exception (conditions that must be met for a lease not to be considered illegal); bona fide employment exception (important to academic medical centers); personal services arrangement exception (vascular laboratory medical directorship); physician incentive plans exception (if volume or value of referrals are an issue); hospital-affiliated group practice exception (physician services billed by a hospital); recruitment arrangement exception (inducements by hospitals to relocate); items/services exception (transcription services purchased from a hospital); fair market value exception (covers services provided to health care entities); indirect compensation arrangements (dealings between a hospital and entity owned by physicians); and academic medical centers exception (new phase II rules broaden the definition of academic medical centers and ease the requirement that practice plans be tax-exempt organizations, among other changes. Although expert legal advice is required for navigation through the maze of Stark laws, it is incumbent on surgeons

Extremely broadband, on-chip optical nonreciprocity enabled by mimicking nonlinear anti-adiabatic quantum jumps near exceptional points.

Science.gov (United States)

Choi, Youngsun; Hahn, Choloong; Yoon, Jae Woong; Song, Seok Ho; Berini, Pierre

2017-01-20

Time-asymmetric state-evolution properties while encircling an exceptional point are presently of great interest in search of new principles for controlling atomic and optical systems. Here, we show that encircling-an-exceptional-point interactions that are essentially reciprocal in the linear interaction regime make a plausible nonlinear integrated optical device architecture highly nonreciprocal over an extremely broad spectrum. In the proposed strategy, we describe an experimentally realizable coupled-waveguide structure that supports an encircling-an-exceptional-point parametric evolution under the influence of a gain saturation nonlinearity. Using an intuitive time-dependent Hamiltonian and rigorous numerical computations, we demonstrate strictly nonreciprocal optical transmission with a forward-to-backward transmission ratio exceeding 10 dB and high forward transmission efficiency (∼100%) persisting over an extremely broad bandwidth approaching 100 THz. This predicted performance strongly encourages experimental realization of the proposed concept to establish a practical on-chip optical nonreciprocal element for ultra-short laser pulses and broadband high-density optical signal processing.

Nonlinear wave collapse and strong turbulence

International Nuclear Information System (INIS)

Robinson, P.A.

1997-01-01

The theory and applications of wave self-focusing, collapse, and strongly nonlinear wave turbulence are reviewed. In the last decade, the theory of these phenomena and experimental realizations have progressed rapidly. Various nonlinear wave systems are discussed, but the simplest case of collapse and strong turbulence of Langmuir waves in an unmagnetized plasma is primarily used in explaining the theory and illustrating the main ideas. First, an overview of the basic physics of linear waves and nonlinear wave-wave interactions is given from an introductory perspective. Wave-wave processes are then considered in more detail. Next, an introductory overview of the physics of wave collapse and strong turbulence is provided, followed by a more detailed theoretical treatment. Later sections cover numerical simulations of Langmuir collapse and strong turbulence and experimental applications to space, ionospheric, and laboratory plasmas, including laser-plasma and beam-plasma interactions. Generalizations to self-focusing, collapse, and strong turbulence of waves in other systems are also discussed, including nonlinear optics, solid-state systems, magnetized auroral and astrophysical plasmas, and deep-water waves. The review ends with a summary of the main ideas of wave collapse and strong-turbulence theory, a collection of open questions in the field, and a brief discussion of possible future research directions. copyright 1997 The American Physical Society

Through a Different Lens: Reflecting on a Strengths-Based, Talent-Focused Approach for Twice-Exceptional Learners

Science.gov (United States)

Baum, Susan M.; Schader, Robin M.; Hébert, Thomas P.

2014-01-01

This study sought to understand the experiences of a cohort of students who entered a strengths-based private school for twice-exceptional students during middle school and successfully completed graduation requirements. Using a case study design, the researchers analyzed data collected from student and teacher interviews, parent focus groups,…

Exceptional groups from open strings

International Nuclear Information System (INIS)

Gaberdiel, M.R.; Zwiebach, B.

1998-01-01

We consider type IIB theory compactified on a two-sphere in the presence of mutually non-local 7-branes. The BPS states associated with the gauge vectors of exceptional groups are seen to arise from open strings connecting the 7-branes, and multi-pronged open strings capable of ending on more than two 7-branes. These multi-pronged strings are built from open string junctions that arise naturally when strings cross 7-branes. The different string configurations can be multiplied as traditional open strings, and are shown to generate the structure of exceptional groups. (orig.)

Session-based Choreography with Exceptions

DEFF Research Database (Denmark)

Carbone, Marco

2009-01-01

Choreography has recently emerged as a pragmatic and concise way of describing communication-based systems such as web services and financial protocols. Recent studies have investigated the transition from the design stage of a system to its implementation providing an automatic way of mapping...... a choreograhy into executable code. In this work, we focus on an extension of choreography with a communication-based (interactional) exception mechanism by giving its formal semantics. In particular, we discuss through some examples how interactional exceptions at choreography level can be implemented into end...

Detecting and explaining business exceptions for risk assessment

NARCIS (Netherlands)

Liu, L.; Daniëls, H.A.M.; Hofman, W.; Hammoudi, S.; Maciaszek, L.; Cordeiro, J.; Dietz, J.

2013-01-01

Systematic risk analysis can be based on causal analysis of business exceptions. In this paper we describe the concepts of automatic analysis for the exceptional patterns which are hidden in a large set of business data. These exceptions are interesting to be investigated further for their causes

Exceptionally strong, stiff and hard hybrid material based on an elastomer and isotropically shaped ceramic nanoparticles.

Science.gov (United States)

Georgopanos, Prokopios; Schneider, Gerold A; Dreyer, Axel; Handge, Ulrich A; Filiz, Volkan; Feld, Artur; Yilmaz, Ezgi D; Krekeler, Tobias; Ritter, Martin; Weller, Horst; Abetz, Volker

2017-08-04

In this work the fabrication of hard, stiff and strong nanocomposites based on polybutadiene and iron oxide nanoparticles is presented. The nanocomposites are fabricated via a general concept for mechanically superior nanocomposites not based on the brick and mortar structure, thus on globular nanoparticles with nanosized organic shells. For the fabrication of the composites oleic acid functionalized iron oxide nanoparticles are decorated via ligand exchange with an α,ω-polybutadiene dicarboxylic acid. The functionalized particles were processed at 145 °C. Since polybutadiene contains double bonds the nanocomposites obtained a crosslinked structure which was enhanced by the presence of oxygen or sulfur. It was found that the crosslinking and filler percolation yields high elastic moduli of approximately 12-20 GPa and hardness of 15-18 GPa, although the polymer volume fraction is up to 40%. We attribute our results to a catalytically enhanced crosslinking reaction of the polymer chains induced by oxygen or sulfur and to the microstructure of the nanocomposite.

Particulate Air Pollution, Exceptional Aging, and Rates of Centenarians: A Nationwide Analysis of the United States, 1980-2010.

Science.gov (United States)

Baccarelli, Andrea A; Hales, Nick; Burnett, Richard T; Jerrett, Michael; Mix, Carter; Dockery, Douglas W; Pope, C Arden

2016-11-01

Exceptional aging, defined as reaching age 85 years, shows geographic inequalities that may depend on local environmental conditions. Links between particulate pollution-a well-recognized environmental risk factor-and exceptional aging have not been investigated. We conducted a nationwide analysis of ~28 million adults in 3,034 United States counties to determine whether local PM2.5 levels (particulate matter migration variables. On average, 2,295 and 71.4 per 10,000 of the 55- to 64- and 70- to 74-year-olds in 1980, respectively, remained in the 85- to 94- and 100- to 104-year-old population in 2010. An interquartile range (4.19 μg/m3) increase in PM2.5 was associated with 93.7 fewer 85- to 94-year-olds (p national standard. Exceptional aging was strongly associated with smoking, with an interquartile range (4.77%) increase in population who smoked associated with 181.9 fewer 85- to 94-year-olds (p income. Communities with the most exceptional aging have low ambient air pollution and low rates of smoking, poverty, and obesity. Improvements in these determinants may contribute to increasing exceptional aging. Citation: Baccarelli AA, Hales N, Burnett RT, Jerrett M, Mix C, Dockery DW, Pope CA III. 2016. Particulate air pollution, exceptional aging, and rates of centenarians: a nationwide analysis of the United States, 1980-2010. Environ Health Perspect 124:1744-1750; http://dx.doi.org/10.1289/EHP197.

32 CFR 811.7 - Collecting and controlling fees.

Science.gov (United States)

2010-07-01

... 32 National Defense 6 2010-07-01 2010-07-01 false Collecting and controlling fees. 811.7 Section 811.7 National Defense Department of Defense (Continued) DEPARTMENT OF THE AIR FORCE SALES AND... controlling fees. (a) The DoD records centers usually collect fees in advance. Exceptions are sales where you...

Amendments to excepted benefits. Final rules.

Science.gov (United States)

2014-10-01

This document contains final regulations that amend the regulations regarding excepted benefits under the Employee Retirement Income Security Act of 1974, the Internal Revenue Code (the Code), and the Public Health Service Act. Excepted benefits are generally exempt from the health reform requirements that were added to those laws by the Health Insurance Portability and Accountability Act and the Patient Protection and Affordable Care Act. In addition, eligibility for excepted benefits does not preclude an individual from eligibility for a premium tax credit under section 36B of the Code if an individual chooses to enroll in coverage under a Qualified Health Plan through an Affordable Insurance Exchange. These regulations finalize some but not all of the proposed rules with minor modifications; additional guidance on limited wraparound coverage is forthcoming.

Observation of the exceptional point in cavity magnon-polaritons.

Science.gov (United States)

Zhang, Dengke; Luo, Xiao-Qing; Wang, Yi-Pu; Li, Tie-Fu; You, J Q

2017-11-08

Magnon-polaritons are hybrid light-matter quasiparticles originating from the strong coupling between magnons and photons. They have emerged as a potential candidate for implementing quantum transducers and memories. Owing to the dampings of both photons and magnons, the polaritons have limited lifetimes. However, stationary magnon-polariton states can be reached by a dynamical balance between pumping and losses, so the intrinsically nonequilibrium system may be described by a non-Hermitian Hamiltonian. Here we design a tunable cavity quantum electrodynamics system with a small ferromagnetic sphere in a microwave cavity and engineer the dissipations of photons and magnons to create cavity magnon-polaritons which have non-Hermitian spectral degeneracies. By tuning the magnon-photon coupling strength, we observe the polaritonic coherent perfect absorption and demonstrate the phase transition at the exceptional point. Our experiment offers a novel macroscopic quantum platform to explore the non-Hermitian physics of the cavity magnon-polaritons.

Neuropsychological functioning of an Asperger child with exceptional skill in arranging picture stories.

Science.gov (United States)

Conson, Massimiliano; Salzano, Sara; Grossi, Dario

2011-08-01

A striking special ability in arranging picture stories was reported in an Asperger child (C.M.) showing an exceptional performance on Wechsler picture arrangement subtest. Neuropsychological examination did not disclose visuoperceptual and spatial defects, or working memory, attention and executive disorders, but revealed an attentional bias towards local details of complex structures. A specific assessment of C.M.'s understanding of picture stories demonstrated that, with respect to normal controls, he showed an enhanced ability to detect causal links among elements of a story. These findings provide support to the hypothesis that savantism can be related to strong systemizing in autism.

28 CFR 66.6 - Additions and exceptions.

Science.gov (United States)

2010-07-01

... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Additions and exceptions. 66.6 Section 66.6 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) UNIFORM ADMINISTRATIVE REQUIREMENTS FOR... additional administrative requirements except in codified regulations published in the Federal Register. (b...

The Role of Middlemen inEfficient and Strongly Pairwise Stable Networks

NARCIS (Netherlands)

Gilles, R.P.; Chakrabarti, S.; Sarangi, S.; Badasyan, N.

2004-01-01

We examine the strong pairwise stability concept in network formation theory under collective network benefits.Strong pairwise stability considers a pair of players to add a link through mutual consent while permitting them to unilaterally delete any subset of links under their control.We examine

Educating Exceptional Children: Current Issue for Educators

Science.gov (United States)

Specht, Jacqueline

2004-01-01

The Oxford dictionary defines exceptionality as "forming an exception; very unusual; outstandingly good." A thesaurus provides the following synonyms: outstanding, excellent, brilliant, antonym of ordinary. In education and psychology textbooks and journals, however, it is often defined in ways that focus on limitations, with synonyms…

Guide book of radioactive wastes collecting. Producers, from collection to storage

International Nuclear Information System (INIS)

2003-01-01

This document, more particularly devoted to radioactive waste producers (except electronuclear industry), defines the technical specifications and the financial conditions relative to the taking over of their wastes by the ANDRA, the French national agency of radioactive wastes. Content: general principles, instructions manual of the taking over demand, practical conditions of wastes collecting, packaging and containers, specifications for each category of waste, particular cases, price table, disputes. (J.S.)

Corporate Governance Against Recommendations: The Cases of the Strong Executive and the Strong Ownership

Directory of Open Access Journals (Sweden)

Král Pavel

2012-09-01

Full Text Available There are several basic configurations of corporate governance according to the separation of ownership and control (Jensen’s theory. Effective governance is described as a situation whenan owner (or group of owners keeps the right to ratify and monitor strategic decisions while management has the right to initiate and implement those decisions. There are two particular situations how this recommendation is partially broken and both situations are linked to CEO duality. The first case happens when an owner loses or does not exercise the right to monitor management of the organization and is termed as the strong executive. The second case is calledthe strong ownership and is distinguished by an owner taking over implementations of the decisions. The focus of the study was to explore particularly configurations of the strong executive and the strong governance. A mixed method research design was chosen to explore the differences between the basic governance configurations. The sample was chosen by purposive sampling and covered a hundred for-profit organizations of all size and from all sectors of economy.The data were collected through interviews with representatives, mainly members of top management. We revealed that both of these configurations can bear good corporate performance but also bigger risks. The strong executive is typical for organizations with dispersed ownership or a publicly owned organization and the performance of the organization is fully dependent on competencies but also personalities of managers. This configuration contains a high risk of misuse of authority. The strong ownership is effective in small organizations while in a larger organization leads to an overexertion of owners and low performance because they usually faceproblems to keep focus on the strategic issues of the organization.

Prediction and design of first super-strong liquid-crystalline polymers

International Nuclear Information System (INIS)

Dowell, F.

1989-01-01

This paper presents the details of the theoretical prediction and design (atom by atom, bond by bond) of the molecule chemical structures of the first candidate super-strong liquid-crystalline polymers (SS LCPs). These LCPs are the first LCPs designed to have good compressive strengths, as well as to have tensile strengths and tensile moduli significantly larger than those of existing strong LCPs (such as Kevlar). The key feature of this new class of LCPs is that the exceptional strength is three dimensional on a microscopic, molecular level (thus, on a macroscopic level), in contrast to present LCPs (such as Kevlar) with their one-dimensional exceptional strength. These SS LCPs also have some solubility and processing advantages over existing strong LCPs. These SS LCPs are specially-designed combined LCPs such that the side chains of a molecule interdigitate with the side chains of other molecules. This paper also presents other essential general and specific features required for SS LCPs. Considerations in the design of SS LCPs include the spacing distance between side chains along the backbone, the need for rigid sections in the backbone and side chains, the degree of polymerization, the length of the side chains, the regularity of spacing of the side chains along the backbone, the interdigitation of side chains in submolecular strips, the packing of the side chains on one or two sides of the backbone, the symmetry of the side chains, the points of attachment of the side chains to the backbone, the flexibility and size of the chemical group connecting each side chain to the backbone, the effect of semiflexible sections in the backbone and side chains, and the choice of types of dipolar and/or hydrogen bonding forces in the backbones and side chains for easy alignment

16 CFR 1101.42 - Imminent hazard exception.

Science.gov (United States)

2010-01-01

... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Imminent hazard exception. 1101.42 Section 1101.42 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION CONSUMER PRODUCT SAFETY ACT REGULATIONS... court. Once the exception applies, information may be disclosed to the public while the proceeding is...

Memory effect triggered by exceptional event: the Rio Cordon study case

Science.gov (United States)

Rainato, Riccardo; Mao, Luca; Picco, Lorenzo; Garcia-Rama, Adriana; Aristide Lenzi, Mario

2016-04-01

In the mountain environment, the steep channels play a key-role in the drainage networks. Notably, the sediment transport processes that here occur, can affect aspects as the geomorphic changes, channel evolution, reservoir management, infrastructure design and hazard assessment. Due to the complex and changeable hydraulic and morphological features that characterize the mountain environment, the steep channels can exhibit fluvial and/or debris-flow transport with magnitude of sediment delivery that, in the same basin, may strongly vary from event to event. In the light of these challenging conditions, appears clear as an accurate monitoring and investigation of sediment dynamics is of critical importance in the steep mountain channels. Such monitoring has even more significance if it is maintained over long-period, enabling to investigate even the role of high magnitude/low frequency events. Using a dataset 29 years-wide, this work aims to investigate the temporal trend of sediment dynamic in the Rio Cordon (Eastern Italian Alps). The Rio Cordon is a steep mountain channel (mean slope = 13%) characterized by step-pool and riffle-pool morphology. The basin (5 km2)exhibits a prevalent nivo-pluvial runoff regime. Since 1986, the catchment is equipped with a monitoring station, that continuously records water discharge, bedload and suspended load (at 1 hr intervals, and 5 min intervals during floods). In September 1994 an exceptional event (RI > 100 years) occurred in the study site, mobilizing about 4000 tons of material. Currently, the structure is managed by ARPA Veneto - Regional Department for Land Safety. In terms of magnitude, the 31 floods recorded by the monitoring station show a wide range of hydraulic forcing (i.e. peak discharge and effective runoff) and amount transported. Specifically, Qpeak ranges within one order of magnitude (1.02 - 10.42 m3 s-1), while the amount of bedload and suspended load varies by more than 3 orders (i.e. 0.9 t transported by

The quantum Zeno and anti-Zeno effects with strong system-environment coupling.

Science.gov (United States)

Chaudhry, Adam Zaman

2017-05-11

To date, studies of the quantum Zeno and anti-Zeno effects focus on quantum systems that are weakly interacting with their environment. In this paper, we investigate what happens to a quantum system under the action of repeated measurements if the quantum system is strongly interacting with its environment. We consider as the quantum system a single two-level system coupled strongly to a collection of harmonic oscillators. A so-called polaron transformation is then used to make the problem in the strong system-environment coupling regime tractable. We find that the strong coupling case exhibits quantitative and qualitative differences as compared with the weak coupling case. In particular, the effective decay rate does not depend linearly on the spectral density of the environment. This then means that, in the strong coupling regime that we investigate, increasing the system-environment coupling strength can actually decrease the effective decay rate. We also consider a collection of two-level atoms coupled strongly with a common environment. In this case, we find that there are further differences between the weak and strong coupling cases since the two-level atoms can now indirectly interact with one another due to the common environment.

Une Exception Francaise: Les Grandes Ecoles (A French Exception: The Great Schools).

Science.gov (United States)

Kimmel, Alain

1996-01-01

Examines the role of exceptional schools in France that have produced famous personages such as Charles de Gaulle and Jean-Paul Sartre. The schools reviewed include L'Ecole Nationale d'Administration, L'Ecole Polytechnique, L'Ecole Normale Superieure, L'Ecole des Hautes Etudes Commerciales, Saint-Cyr, and L'Institut d'Etudes Politiques de Paris.…

49 CFR 173.3 - Packaging and exceptions.

Science.gov (United States)

2010-10-01

... 49 Transportation 2 2010-10-01 2010-10-01 false Packaging and exceptions. 173.3 Section 173.3... SHIPMENTS AND PACKAGINGS General § 173.3 Packaging and exceptions. (a) The packaging of hazardous materials.... standard packaging must be open to inspection by a representative of the Department. (b) The regulations...

Fault-tolerant quantum cryptographic protocols with collective detection over the collective amplitude damping channel

International Nuclear Information System (INIS)

Huang, Wei; Su, Qi; Li, Yan-Bing; Sun, Ying

2014-01-01

In this paper, a quantum key distribution (QKD) protocol, which can be immune to collective amplitude damping noise, is proposed with collective detection strategy. Then a multi-party quantum secret sharing (MQSS) protocol and a quantum private comparison (QPC) protocol are introduced as two applications of the proposed QKD protocol. Except for one participant who is responsible for preparing and measuring quantum states, the rest of the users in each of these protocols only need to perform certain unitary operations due to the utilization of collective detection. Therefore, in addition to the advantage of being secure against collective amplitude damping noise, the proposed protocols still have the advantages of higher qubit efficiency and lower cost for implementation. Moreover, the security of these protocols is guaranteed by theorems on quantum operation discrimination. (papers)

21 CFR 1302.03 - Symbol required; exceptions.

Science.gov (United States)

2010-04-01

... 21 Food and Drugs 9 2010-04-01 2010-04-01 false Symbol required; exceptions. 1302.03 Section 1302... REQUIREMENTS FOR CONTROLLED SUBSTANCES § 1302.03 Symbol required; exceptions. (a) Each commercial container of... § 1308.31 of this chapter) shall have printed on the label the symbol designating the schedule in which...

34 CFR 682.507 - Due diligence in collecting a loan.

Science.gov (United States)

2010-07-01

... 34 Education 3 2010-07-01 2010-07-01 false Due diligence in collecting a loan. 682.507 Section 682... Student Loan Programs § 682.507 Due diligence in collecting a loan. (a) General. (1) Except as provided in paragraph (a)(4) of this section, a lender shall exercise due diligence in the collection of a loan with...

49 CFR 1572.501 - Fee collection.

Science.gov (United States)

2010-10-01

... this section, except the FBI fee, may be adjusted annually on or after October 1, 2007, by publication... 49 Transportation 9 2010-10-01 2010-10-01 false Fee collection. 1572.501 Section 1572.501... ASSESSMENTS Fees for Security Threat Assessments for Transportation Worker Identification Credential (TWIC...

48 CFR 225.103 - Exceptions.

Science.gov (United States)

2010-10-01

... covered by the World Trade Organization Government Procurement Agreement, the Under Secretary of Defense...) In order not to impair integration of the military and commercial industrial base. (B) Except as...

48 CFR 825.202 - Exceptions.

Science.gov (United States)

2010-10-01

... PROGRAMS FOREIGN ACQUISITION Buy American Act-Construction Materials 825.202 Exceptions. (a) When a... HCA believes that the non-availability of an article is likely to affect future acquisitions, include...

Charging dynamics and strong localization of a two-dimensional electron cloud

International Nuclear Information System (INIS)

Dianoux, R; Smilde, H J H; Marchi, F; Buffet, N; Mur, P; Comin, F; Chevrier, J

2007-01-01

The dynamics of charge injection in silicon nanocrystals embedded in a silicon dioxide matrix is studied using electrostatic force microscopy. We show that the presence of silicon nanocrystals with a density of 10 11 cm -2 is essential for strong localization of charges, and results in exceptional charge retention properties compared to nanocrystal-free SiO 2 samples. In both systems, a logarithmic dependence of the diameter of the charged area on the injection time is experimentally observed on a timescale between 0.1 and 10 s (voltage≤10 V). A field-emission injection, limited by Coulomb blockade and a lateral charge spreading due to a repulsive radial electric field are used to model the sample charging. Once the tip is retracted, the electron cloud is strongly confined in the nanocrystals and remains static

45 CFR 670.5 - Exception in extraordinary circumstances.

Science.gov (United States)

2010-10-01

... involving the safety of human life or of ships, aircraft, or equipment or facilities of high value, or the... FOUNDATION CONSERVATION OF ANTARCTIC ANIMALS AND PLANTS Prohibited Acts, Exceptions § 670.5 Exception in...

Technical Note: Collection and preparation techniques change nutrient composition of masticate collected from esophageally fistulated cattle.

Science.gov (United States)

Musgrave, J A; Judy, J V; Jenkins, K H; Klopfenstein, T J; Stalker, L A

2015-12-01

Two experiments determined effects of collection and preparation techniques on nutrient composition of masticate samples from esophageally fistulated cattle. In Exp. 1, 12 esophageally fistulated cattle were maintained on 2 precollection diets, high CP (24% CP; = 6) or low CP (7.7% CP; = 6), for 8 d. On d 9, the esophageal plug was removed, screen bottom bags were attached, and each cow was offered fresh grass. Immediately after fresh grass sample collection was complete, dry grass (hay) was offered and a sample was collected. Blood samples were collected and analyzed for serum urea nitrogen concentration. Masticate samples of both fresh and dry grass were divided and each was either squeezed by hand until no more saliva could be removed or remained unsqueezed. In Exp. 2, 10 esophageally fistulated cattle were fitted with either screen ( = 5) or solid ( = 5) bottom collection bags after removal of the esophageal plug and presented grass hay, fresh grass, alfalfa hay, or fresh alfalfa. In Exp. 1, the precollection diet did not affect ( = 0.49) CP content of masticate even though serum urea nitrogen tended to be greater ( = 0.08) for high- vs. low-CP precollection diets. Forage harvest type offered (fresh vs. hay) interacted ( = 0.01) with preparation technique (squeezed vs. unsqueezed) for CP, where CP decreased in squeezed fresh samples ( 0.15) for all samples except fresh alfalfa, which was greater after ingestion ( = 0.002). Ingestion status did not affect in vitro OM disappearance (IVOMD; > 0.34) except for grass hay, which was greater after ingestion ( Bag type (screen vs. solid) did not affect ash and NDF ( > 0.31), except for fresh alfalfa, which were greater ( bags. Bag type did not affect alfalfa CP ( = 0.71) but did affect grass CP, which was lower ( = 0.02) for solid bottom bags. Bag type did not affect IVOMD ( > 0.33). More ( = 0.01) fresh forage than hay was recovered through the esophageal opening. Previous diet did not impact masticate samples but

Collective Dynamics and Strong Pinning near the Onset of Charge Order in La1.48Nd0.4Sr0.12CuO4

Science.gov (United States)

Baity, P. G.; Sasagawa, T.; Popović, Dragana

2018-04-01

The dynamics of charge-ordered states is one of the key issues in underdoped cuprate high-temperature superconductors, but static short-range charge-order (CO) domains have been detected in almost all cuprates. We probe the dynamics across the CO (and structural) transition in La1.48Nd0.4Sr0.12CuO4 by measuring nonequilibrium charge transport, or resistance R as the system responds to a change in temperature and to an applied magnetic field. We find evidence for metastable states, collective behavior, and criticality. The collective dynamics in the critical regime indicates strong pinning by disorder. Surprisingly, nonequilibrium effects, such as avalanches in R , are revealed only when the critical region is approached from the charge-ordered phase. Our results on La1.48Nd0.4Sr0.12CuO4 provide the long-sought evidence for the fluctuating order across the CO transition, and also set important constraints on theories of dynamic stripes.

Framing charitable donations as exceptional expenses increases giving.

Science.gov (United States)

Sussman, Abigail B; Sharma, Eesha; Alter, Adam L

2015-06-01

Many articles have examined the psychological drivers of charitable giving, but little is known about how people mentally budget for charitable gifts. The present research aims to address this gap by investigating how perceptions of donations as exceptional (uncommon and infrequent) rather than ordinary (common and frequent) expenses might affect budgeting for and giving to charity. We provide the first demonstration that exceptional framing of an identical item can directly influence mental budgeting processes, and yield societal benefits. In 5 lab and field experiments, exceptional framing increased charitable behavior, and diminished the extent to which people considered the effect of the donation on their budgets. The current work extends our understanding of mental accounting and budgeting for charitable gifts, and demonstrates practical techniques that enable fundraisers to enhance the perceived exceptionality of donations. (c) 2015 APA, all rights reserved).

Nothing Exceptional: Against Agamben

Science.gov (United States)

Colatrella, Steven

2011-01-01

Giorgio Agamben's work has become widely influential as a guide to explaining the extra-constitutional powers assumed by governments under the rubric of the War on Terror. His formulations, such as Homo Sacer and State of Exception, have been extended to apply to a wide variety of experiences of repression of liberties or social control, including…

On exceptional instanton strings

NARCIS (Netherlands)

Del Zotto, M.; Lockhart, G.

According to a recent classification of 6d (1, 0) theories within F-theory there are only six “pure” 6d gauge theories which have a UV superconformal fixed point. The corresponding gauge groups are SU(3), SO(8), F4, E6, E7, and E8. These exceptional models have BPS strings which are also instantons

Exceptional points in open quantum systems

International Nuclear Information System (INIS)

Mueller, Markus; Rotter, Ingrid

2008-01-01

Open quantum systems are embedded in the continuum of scattering wavefunctions and are naturally described by non-Hermitian Hamilton operators. In the complex energy plane, exceptional points appear at which two (or more) eigenvalues of the Hamilton operator coalesce. Although they are a countable set of single points in the complex energy plane and therefore of measure zero, they determine decisively the dynamics of open quantum systems. A powerful method for the description of open quantum systems is the Feshbach projection operator formalism. It is used in the present paper as a basic tool for the study of exceptional points and of the role they play for the dynamics of open quantum systems. Among others, the topological structure of the exceptional points, the rigidity of the phases of the eigenfunctions in their vicinity, the enhancement of observable values due to the reduced phase rigidity and the appearance of phase transitions are considered. The results are compared with existing experimental data on microwave cavities. In the last section, some questions being still unsolved, are considered

Collective effective dose in Europe from x-ray and nuclear medicine procedures

International Nuclear Information System (INIS)

Bly, R.; Jaervinen, H.; Jahnen, A.; Olerud, H.; Vassileva, J.; Vogiatzi, S.

2015-01-01

Population doses from radiodiagnostic (X-ray and nuclear medicine) procedures in Europe were estimated based on data collected from 36 European countries. For X-ray procedures in EU and EFTA countries (except Liechtenstein) the collective effective dose is 547 500 man Sv, resulting in a mean effective dose of 1.06 mSv per caput. For all European countries included in the survey the collective effective dose is 605 000 man Sv, resulting in a mean effective dose of 1.05 mSv per caput. For nuclear medicine procedures in EU countries and EFTA (except Liechtenstein) countries the collective effective dose is 30 700 man Sv, resulting in a mean effective dose of 0.06 mSv per caput. For all European countries included in the survey the collective effective dose is 31 100 man Sv, resulting in a mean effective dose of 0.05 mSv per caput. (authors)

Near-infrared exciton-polaritons in strongly coupled single-walled carbon nanotube microcavities

Science.gov (United States)

Graf, Arko; Tropf, Laura; Zakharko, Yuriy; Zaumseil, Jana; Gather, Malte C.

2016-10-01

Exciton-polaritons form upon strong coupling between electronic excitations of a material and photonic states of a surrounding microcavity. In organic semiconductors the special nature of excited states leads to particularly strong coupling and facilitates condensation of exciton-polaritons at room temperature, which may lead to electrically pumped organic polariton lasers. However, charge carrier mobility and photo-stability in currently used materials is limited and exciton-polariton emission so far has been restricted to visible wavelengths. Here, we demonstrate strong light-matter coupling in the near infrared using single-walled carbon nanotubes (SWCNTs) in a polymer matrix and a planar metal-clad cavity. By exploiting the exceptional oscillator strength and sharp excitonic transition of (6,5) SWCNTs, we achieve large Rabi splitting (>110 meV), efficient polariton relaxation and narrow band emission (<15 meV). Given their high charge carrier mobility and excellent photostability, SWCNTs represent a promising new avenue towards practical exciton-polariton devices operating at telecommunication wavelengths.

Exceptional thermodynamics. The equation of state of G2 gauge theory

International Nuclear Information System (INIS)

Bruno, Mattia; Panero, Marco; Pellegrini, Roberto

2014-10-01

We present a lattice study of the equation of state in Yang-Mills theory based on the exceptional G 2 gauge group. As is well-known, at zero temperature this theory shares many qualitative features with real-world QCD, including the absence of colored states in the spectrum and dynamical string breaking at large distances. In agreement with previous works, we show that at finite temperature this theory features a first-order deconfining phase transition, whose nature can be studied by a semi-classical computation. We also show that the equilibrium thermodynamic observables in the deconfined phase bear striking quantitative similarities with those found in SU(N) gauge theories: in particular, these quantities exhibit nearly perfect proportionality to the number of gluon degrees of freedom, and the trace anomaly reveals a characteristic quadratic dependence on the temperature, also observed in SU(N) Yang-Mills theories (both in four and in three spacetime dimensions). We compare our lattice data with analytical predictions from effective models, and discuss their implications for the deconfinement mechanism and high-temperature properties of strongly interacting, non-supersymmetric gauge theories. Our results give strong evidence for the conjecture that the thermal deconfining transition is governed by a universal mechanism, common to all simple gauge groups.

Strongly Correlated Systems Theoretical Methods

CERN Document Server

Avella, Adolfo

2012-01-01

The volume presents, for the very first time, an exhaustive collection of those modern theoretical methods specifically tailored for the analysis of Strongly Correlated Systems. Many novel materials, with functional properties emerging from macroscopic quantum behaviors at the frontier of modern research in physics, chemistry and materials science, belong to this class of systems. Any technique is presented in great detail by its own inventor or by one of the world-wide recognized main contributors. The exposition has a clear pedagogical cut and fully reports on the most relevant case study where the specific technique showed to be very successful in describing and enlightening the puzzling physics of a particular strongly correlated system. The book is intended for advanced graduate students and post-docs in the field as textbook and/or main reference, but also for other researchers in the field who appreciates consulting a single, but comprehensive, source or wishes to get acquainted, in a as painless as po...

Strongly correlated systems numerical methods

CERN Document Server

Mancini, Ferdinando

2013-01-01

This volume presents, for the very first time, an exhaustive collection of those modern numerical methods specifically tailored for the analysis of Strongly Correlated Systems. Many novel materials, with functional properties emerging from macroscopic quantum behaviors at the frontier of modern research in physics, chemistry and material science, belong to this class of systems. Any technique is presented in great detail by its own inventor or by one of the world-wide recognized main contributors. The exposition has a clear pedagogical cut and fully reports on the most relevant case study where the specific technique showed to be very successful in describing and enlightening the puzzling physics of a particular strongly correlated system. The book is intended for advanced graduate students and post-docs in the field as textbook and/or main reference, but also for other researchers in the field who appreciate consulting a single, but comprehensive, source or wishes to get acquainted, in a as painless as possi...

Strongly correlated systems experimental techniques

CERN Document Server

Mancini, Ferdinando

2015-01-01

The continuous evolution and development of experimental techniques is at the basis of any fundamental achievement in modern physics. Strongly correlated systems (SCS), more than any other, need to be investigated through the greatest variety of experimental techniques in order to unveil and crosscheck the numerous and puzzling anomalous behaviors characterizing them. The study of SCS fostered the improvement of many old experimental techniques, but also the advent of many new ones just invented in order to analyze the complex behaviors of these systems. Many novel materials, with functional properties emerging from macroscopic quantum behaviors at the frontier of modern research in physics, chemistry and materials science, belong to this class of systems. The volume presents a representative collection of the modern experimental techniques specifically tailored for the analysis of strongly correlated systems. Any technique is presented in great detail by its own inventor or by one of the world-wide recognize...

77 FR 70807 - Advisory Board for Exceptional Children

Science.gov (United States)

2012-11-27

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY... (BIE) is announcing that the Advisory Board for Exceptional Children (Advisory Board) will hold its... with Disabilities Education Act of 2004 (IDEA) for Indian children with disabilities. DATES: The...

76 FR 40929 - Advisory Board for Exceptional Children

Science.gov (United States)

2011-07-12

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY... (BIE) is announcing that the Advisory Board for Exceptional Children (Advisory Board) will hold its... with Disabilities Education Act of 2004 (IDEA) for Indian children with disabilities. DATES: The...

77 FR 47873 - Advisory Board for Exceptional Children

Science.gov (United States)

2012-08-10

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY... (BIE) is announcing that the Advisory Board for Exceptional Children (Advisory Board) will hold its... with Disabilities Education Act of 2004 (IDEA) for Indian children with disabilities. DATES: The...

75 FR 50780 - Advisory Board for Exceptional Children

Science.gov (United States)

2010-08-17

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY... (BIE) is announcing that the Advisory Board for Exceptional Children (Advisory Board) will hold its... with Disabilities Education Act of 2004 (IDEA) for Indian children with disabilities. DATES: The...

Adapting American Policymaking to Overcome American Exceptionalism

Science.gov (United States)

2015-04-13

discomfort at President Bush’s rallying good against evil speeches and the words of the NSS. The President’s us versus them foreign policies...of global leadership, and of concern for the well being of the global community. Classically, American exceptionalism refers to the uniquely free ...longer that force for good, but a force for its own good. Exceptionalism once meant a nation free from tyrannical rule and offering of bountiful

Near-field strong coupling of single quantum dots.

Science.gov (United States)

Groß, Heiko; Hamm, Joachim M; Tufarelli, Tommaso; Hess, Ortwin; Hecht, Bert

2018-03-01

Strong coupling and the resultant mixing of light and matter states is an important asset for future quantum technologies. We demonstrate deterministic room temperature strong coupling of a mesoscopic colloidal quantum dot to a plasmonic nanoresonator at the apex of a scanning probe. Enormous Rabi splittings of up to 110 meV are accomplished by nanometer-precise positioning of the quantum dot with respect to the nanoresonator probe. We find that, in addition to a small mode volume of the nanoresonator, collective coherent coupling of quantum dot band-edge states and near-field proximity interaction are vital ingredients for the realization of near-field strong coupling of mesoscopic quantum dots. The broadband nature of the interaction paves the road toward ultrafast coherent manipulation of the coupled quantum dot-plasmon system under ambient conditions.

Parents vs. Theorists: Dealing with the Exceptionally Gifted.

Science.gov (United States)

Tolan, Stephanie S.

1992-01-01

This paper explores the fundamental rift between parents raising exceptionally gifted children and theorists who dismiss this population as "statistically insignificant." The role of intelligence tests in identifying the highly unusual mind is examined. The paper concludes that exceptionally gifted children are suffering intellectual…

77 FR 16062 - Advisory Board for Exceptional Children

Science.gov (United States)

2012-03-19

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY... (BIE) is announcing that the Advisory Board for Exceptional Children (Advisory Board) will hold its... Individuals with Disabilities Education Act of 2004 (IDEA) for Indian children with disabilities. DATES: The...

77 FR 28897 - Advisory Board for Exceptional Children

Science.gov (United States)

2012-05-16

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY... (BIE) is announcing that the Advisory Board for Exceptional Children (Advisory Board) will hold its... Individuals with Disabilities Education Act of 2004 (IDEA) for Indian children with disabilities. DATES: The...

76 FR 17965 - Advisory Board for Exceptional Children

Science.gov (United States)

2011-03-31

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY... (BIE) is announcing that the Advisory Board for Exceptional Children (Advisory Board) will hold its... Individuals with Disabilities Education Act of 2004 (IDEA) for Indian children with disabilities. DATES: The...

75 FR 82410 - Advisory Board for Exceptional Children

Science.gov (United States)

2010-12-30

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY... (BIE) is announcing that the Advisory Board for Exceptional Children (Advisory Board) will hold its... Individuals with Disabilities Education Act of 2004 (IDEA) for Indian children with disabilities. DATES: The...

75 FR 53334 - Advisory Board for Exceptional Children

Science.gov (United States)

2010-08-31

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY: Bureau of Indian Affairs, Interior. ACTION: Notice of meeting; correction. SUMMARY: The Bureau of Indian... Advisory Board for Exceptional Children (Advisory Board) will hold its next meeting in Washington, DC. The...

14 CFR 399.21 - Charter exemptions (except military).

Science.gov (United States)

2010-01-01

... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Charter exemptions (except military). 399.21 Section 399.21 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION... Authority § 399.21 Charter exemptions (except military). In deciding applications for exemptions from...

78 FR 42105 - Advisory Board for Exceptional Children

Science.gov (United States)

2013-07-15

....97C22214.001] Advisory Board for Exceptional Children AGENCY: Bureau of Indian Affairs, Interior. ACTION... for Exceptional Children (Advisory Board) will hold its next meeting in Albuquerque, New Mexico. The... (IDEA) for Indian children with disabilities. DATES: The Advisory Board will meet on Thursday, July 18...

Exceptional Responders Initial Feasibility Results

Science.gov (United States)

A pilot study evaluating identification of cancer patients who respond to treatment that is ineffective in at least 90 percent of patients found that it was indeed able to confirm a majority of proposed patients as exceptional responders based on clinical

48 CFR 725.403 - Exceptions.

Science.gov (United States)

2010-10-01

... Section 725.403 Federal Acquisition Regulations System AGENCY FOR INTERNATIONAL DEVELOPMENT SOCIOECONOMIC PROGRAMS FOREIGN ACQUISITION Trade Agreements 725.403 Exceptions. FAR 25.4 establishes procedures for purchases under the Trade Agreements Act of 1979 (including GATT's Agreement on Government Procurement) and...

75 FR 23288 - Advisory Board for Exceptional Children

Science.gov (United States)

2010-05-03

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs Advisory Board for Exceptional Children AGENCY... Exceptional Children (Advisory Board) will hold its next meeting in Old Town, Maine. The purpose of the... Indian children with disabilities. DATES: The Advisory Board will meet on Monday, May 17, 2010, from 8:30...

Exceptional points enhance sensing in an optical microcavity

Science.gov (United States)

Chen, Weijian; Kaya Özdemir, Şahin; Zhao, Guangming; Wiersig, Jan; Yang, Lan

2017-08-01

Sensors play an important part in many aspects of daily life such as infrared sensors in home security systems, particle sensors for environmental monitoring and motion sensors in mobile phones. High-quality optical microcavities are prime candidates for sensing applications because of their ability to enhance light-matter interactions in a very confined volume. Examples of such devices include mechanical transducers, magnetometers, single-particle absorption spectrometers, and microcavity sensors for sizing single particles and detecting nanometre-scale objects such as single nanoparticles and atomic ions. Traditionally, a very small perturbation near an optical microcavity introduces either a change in the linewidth or a frequency shift or splitting of a resonance that is proportional to the strength of the perturbation. Here we demonstrate an alternative sensing scheme, by which the sensitivity of microcavities can be enhanced when operated at non-Hermitian spectral degeneracies known as exceptional points. In our experiments, we use two nanoscale scatterers to tune a whispering-gallery-mode micro-toroid cavity, in which light propagates along a concave surface by continuous total internal reflection, in a precise and controlled manner to exceptional points. A target nanoscale object that subsequently enters the evanescent field of the cavity perturbs the system from its exceptional point, leading to frequency splitting. Owing to the complex-square-root topology near an exceptional point, this frequency splitting scales as the square root of the perturbation strength and is therefore larger (for sufficiently small perturbations) than the splitting observed in traditional non-exceptional-point sensing schemes. Our demonstration of exceptional-point-enhanced sensitivity paves the way for sensors with unprecedented sensitivity.

Exceptional and Spinorial Conformal Windows

DEFF Research Database (Denmark)

Mojaza, Matin; Pica, Claudio; Ryttov, Thomas

2012-01-01

We study the conformal window of gauge theories containing fermionic matter fields, where the gauge group is any of the exceptional groups with the fermions transforming according to the fundamental and adjoint representations and the orthogonal groups where the fermions transform according...

29 CFR 1606.3 - The national security exception.

Science.gov (United States)

2010-07-01

... 29 Labor 4 2010-07-01 2010-07-01 false The national security exception. 1606.3 Section 1606.3... DISCRIMINATION BECAUSE OF NATIONAL ORIGIN § 1606.3 The national security exception. It is not an unlawful employment practice to deny employment opportunities to any individual who does not fulfill the national...

Execution Constraint Verification of Exception Handling on UML Sequence Diagrams

NARCIS (Netherlands)

Ciraci, S.; Sözer, Hasan; Aksit, Mehmet; Havinga, W.K.

2011-01-01

Exception handling alters the control flow of the program. As such, errors introduced in exception handling code may influence the overall program in undesired ways. To detect such errors early and thereby decrease the programming costs, it is worthwhile to consider exception handling at design

76 FR 53157 - Excepted Service

Science.gov (United States)

2011-08-25

... OFFICE OF PERSONNEL MANAGEMENT Excepted Service AGENCY: U.S. Office of Personnel Management (OPM... Administration. Office of Management. Special Assistant.... DE110117 6/22/2011 Office of the Special Assistant... Directors... Special Assistant.... EB110010 6/9/2011 GENERAL SERVICES ADMINISTRATION... Pacific Rim Region...

48 CFR 825.103 - Exceptions.

Science.gov (United States)

2010-10-01

... article is likely to affect future acquisitions, include a recommendation that a copy of the determination... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false Exceptions. 825.103 Section 825.103 Federal Acquisition Regulations System DEPARTMENT OF VETERANS AFFAIRS SOCIOECONOMIC...

49 CFR 173.159a - Exceptions for non-spillable batteries.

Science.gov (United States)

2010-10-01

... 49 Transportation 2 2010-10-01 2010-10-01 false Exceptions for non-spillable batteries. 173.159a... Class 1 and Class 7 § 173.159a Exceptions for non-spillable batteries. (a) Exceptions for hazardous...-spillable batteries offered for transportation or transported in accordance with this section are subject to...

Obama’s Dual Discourse on American Exceptionalism

Directory of Open Access Journals (Sweden)

Hrnjaz Miloš

2015-08-01

Full Text Available This paper analyses the highly contested concept of American exceptionalism, as described in the speeches of Barak Obama. The authors of the paper use discourse analysis to show that Obama is using the idea of American exceptionalism on two levels: US foreign policy and the US stance towards international law. Our conclusion is that Obama uses an implicit dual discourse in both these fields. Obama favours active US foreign policy, based on soft power instruments and multilateralism. He insists that American exceptionalism does not mean that the US can exempt itself from the norms of international law, however, he does not think the US should always have a very active foreign policy. He makes room for unilateral acting and the use of hard power instruments in foreign policy. He allows for the use of force even if is not in accordance with the norms of international law, when US national interests are threatened.

15 CFR 1180.7 - Exceptions.

Science.gov (United States)

2010-01-01

... Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) TECHNOLOGY... INFORMATION TO THE NATIONAL TECHNICAL INFORMATION SERVICE § 1180.7 Exceptions. (a) An agency shall not be...) The product is an agency generated article that is published in a privately produced journal; or (5...

NATO Advanced Study Institute on Atoms in Strong Fields

CERN Document Server

Clark, Charles; Nayfeh, Munir

1990-01-01

This book collects the lectures given at the NATO Advanced Study Institute on "Atoms in Strong Fields", which took place on the island of Kos, Greece, during the two weeks of October 9-21,1988. The designation "strong field" applies here to an external electromagnetic field that is sufficiently strong to cause highly nonlinear alterations in atomic or molecular struc­ ture and dynamics. The specific topics treated in this volume fall into two general cater­ gories, which are those for which strong field effects can be studied in detail in terrestrial laboratories: the dynamics of excited states in static or quasi-static electric and magnetic fields; and the interaction of atoms and molecules with intense laser radiation. In both areas there exist promising opportunities for research of a fundamental nature. An electric field of even a few volts per centimeter can be very strong on the atom­ ic scale, if it acts upon a weakly bound state. The study of Rydberg states with high reso­ lution laser spectroscop...

29 CFR 1921.14 - Exceptions.

Science.gov (United States)

2010-07-01

... Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR (CONTINUED) RULES OF PRACTICE IN ENFORCEMENT PROCEEDINGS UNDER SECTION 41 OF THE LONGSHOREMEN'S AND HARBOR WORKERS' COMPENSATION ACT Decision and Order § 1921.14 Exceptions. Within 20 days after the date of the decision of the...

Learned Helplessness in Exceptional Children.

Science.gov (United States)

Brock, Herman B.; Kowitz, Gerald T.

The research literature on learned helplessness in exceptional children is reviewed and the authors' efforts to identify and retrain learning disabled (LD) children who have characteristics typical of learned helplessness are reported. Twenty-eight elementary aged LD children viewed as "learned helpless" were randomly assigned to one of four…

31 CFR 211.3 - Exceptions.

Science.gov (United States)

2010-07-01

... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Exceptions. 211.3 Section 211.3 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE DELIVERY OF CHECKS AND WARRANTS TO ADDRESSES OUTSIDE THE...

Exceptional thermodynamics. The equation of state of G{sub 2} gauge theory

Energy Technology Data Exchange (ETDEWEB)

Bruno, Mattia [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). John von Neumann-Inst. fuer Computing NIC; Caselle, Michele [Torino Univ. (Italy). Dipt. di Fisica Teorica; INFN, Sezione di Torino (Italy); Panero, Marco [Univ. Autonoma de Madrid (Spain). Inst. de Fisica Teorica; Consejo Superior de Investigaciones Cientificas, Madrid (Spain); Pellegrini, Roberto [Swansea Univ. (United Kingdom). Dept. of Physics

2014-10-15

We present a lattice study of the equation of state in Yang-Mills theory based on the exceptional G{sub 2} gauge group. As is well-known, at zero temperature this theory shares many qualitative features with real-world QCD, including the absence of colored states in the spectrum and dynamical string breaking at large distances. In agreement with previous works, we show that at finite temperature this theory features a first-order deconfining phase transition, whose nature can be studied by a semi-classical computation. We also show that the equilibrium thermodynamic observables in the deconfined phase bear striking quantitative similarities with those found in SU(N) gauge theories: in particular, these quantities exhibit nearly perfect proportionality to the number of gluon degrees of freedom, and the trace anomaly reveals a characteristic quadratic dependence on the temperature, also observed in SU(N) Yang-Mills theories (both in four and in three spacetime dimensions). We compare our lattice data with analytical predictions from effective models, and discuss their implications for the deconfinement mechanism and high-temperature properties of strongly interacting, non-supersymmetric gauge theories. Our results give strong evidence for the conjecture that the thermal deconfining transition is governed by a universal mechanism, common to all simple gauge groups.

7 CFR 4279.15 - Exception authority.

Science.gov (United States)

2010-01-01

... authority. The Administrator may, in individual cases, grant an exception to any requirement or provision of this subpart which is not inconsistent with any applicable law provided, the Administrator determines...

Managing the financial cost of exception to contracting standards

DEFF Research Database (Denmark)

Henschel, Rene Franz

2008-01-01

In managing financial cost of exception to contracting standards, the first step is to put up an intelligent contract standards exception monitoring system The next step is to maintain tailor-made, fair and transparent contracting standards The third step is to eliminate unnecessary information...... and repetitiveness in contracting standards The fourth step is to enable your organization and the customers or suppliers to handle the necessary exceptions themselves Finally you should consider the use of independent contracting standards and elimination of your own standards as a tool in managing the cost...

40 CFR 262.55 - Exception reports.

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2010-07-01

...) STANDARDS APPLICABLE TO GENERATORS OF HAZARDOUS WASTE Exports of Hazardous Waste § 262.55 Exception reports... Protection Agency, 1200 Pennsylvania Avenue, NW., Washington, DC 20460, if any of the following occurs: ...

7 CFR 1780.25 - Exception authority.

Science.gov (United States)

2010-01-01

... authority. The Administrator may, in individual cases, make an exception to any requirement or provision of this part which is not inconsistent with the authorizing statute or other applicable law and is...

7 CFR 1775.68 - Exception authority.

Science.gov (United States)

2010-01-01

... authority. The Administrator may, in individual cases, make an exception to any requirement or provision of this part which is not inconsistent with the authorizing statute or other applicable law and is...

Chapter A. The Loma Prieta, California, Earthquake of October 17, 1989 - Strong Ground Motion

Science.gov (United States)

Borcherdt, Roger D.

1994-01-01

Strong ground motion generated by the Loma Prieta, Calif., earthquake (MS~7.1) of October 17, 1989, resulted in at least 63 deaths, more than 3,757 injuries, and damage estimated to exceed $5.9 billion. Strong ground motion severely damaged critical lifelines (freeway overpasses, bridges, and pipelines), caused severe damage to poorly constructed buildings, and induced a significant number of ground failures associated with liquefaction and landsliding. It also caused a significant proportion of the damage and loss of life at distances as far as 100 km from the epicenter. Consequently, understanding the characteristics of the strong ground motion associated with the earthquake is fundamental to understanding the earthquake's devastating impact on society. The papers assembled in this chapter address this problem. Damage to vulnerable structures from the earthquake varied substantially with the distance from the causative fault and the type of underlying geologic deposits. Most of the damage and loss of life occurred in areas underlain by 'soft soil'. Quantifying these effects is important for understanding the tragic concentrations of damage in such areas as Santa Cruz and the Marina and Embarcadero Districts of San Francisco, and the failures of the San Francisco-Oakland Bay Bridge and the Interstate Highway 880 overpass. Most importantly, understanding these effects is a necessary prerequisite for improving mitigation measures for larger earthquakes likely to occur much closer to densely urbanized areas in the San Francisco Bay region. The earthquake generated an especially important data set for understanding variations in the severity of strong ground motion. Instrumental strong-motion recordings were obtained at 131 sites located from about 6 to 175 km from the rupture zone. This set of recordings, the largest yet collected for an event of this size, was obtained from sites on various geologic deposits, including a unique set on 'soft soil' deposits

Global Trade issues and Cultural Exception

Directory of Open Access Journals (Sweden)

Vanessa MARSON

2012-01-01

Full Text Available Cultural exception has always been a key element in the French political and cultural field. It isbased on the principle that culture is not like any other merchandise because it goes beyond thecommercial. During the negotiations of the Uruguay Round (1986-1994 the United States offeredto liberalize cultural goods and services. Due to the sensitive nature of the cultural industries, theEuropean Union led by France refused to make an offer of liberalization on these fields. Afterheated debates between the United States and the European Union, cultural exception has finallybecome a global issue since 2005. On 20 October, the UNESCO convention on cultural diversitywas voted by 148 countries to two (The United States and Israel to legally and globally recognizethe specific nature of cultural goods and services in the liberalization process.

A survey of recent mammal collections in italy

Directory of Open Access Journals (Sweden)

Anna Maria De Marinis

2008-02-01

Full Text Available <strong>Abstract> A survey was designed to assess the status of the collections of recent mammals in Italy through 79 questionnaires mailed to the main University institutions, municipal, provincial or regional museums and other institutions (including some private collections. We received 58 questionnaires (return rate of 73%. The minimum number of specimens in recent mammal collections in Italy is 161,268 (70% are in Italian collections and 30% in exotic ones. Most of these specimens are concentrated in a quarter of the collections. Taxidermy is the main preservation technique, above all in exotic collections (84%. 82% of the exotic collections date back to the 19th century, while specimens collected after 1950 form 91% of the Italian ones. During the 20th century the Italian collections progressively increased in number and spread through the peninsula and in Sicily. Insectivora, Rodentia, Carnivora, Lagomorpha, Artiodactyla and Primates are represented in more than 80% of the collections. Research results the primary goal both in Italian (70% and exotic (57% collections.

Appendix
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<strong>Riassunto> <strong>Le collezioni di mammiferi attuali in Italia.strong> Per delineare lo status delle collezioni museali di mammiferi attuali in Italia è stata condotta un’indagine mediante 79 questionari inviati a istituzioni universitarie, musei civici, provinciali e regionali ed altre istituzioni (comprese alcune collezioni private. Abbiamo ricevuto 58 questionari (73%. In Italia il numero minimo di esemplari di mammiferi attuali presenti nelle collezioni è risultato 161.268 (il 70% in collezioni italiane, il rimanente 30% in collezioni esotiche. La maggior parte degli

Strong economic growth driving increased electricity consumption

International Nuclear Information System (INIS)

Tiusanen, P.

2000-01-01

The Finnish economy is growing faster today than anyone dared hope only a few years ago. Growth estimates for 2000 have already had to be raised. This strong level of economic growth has been reflected in electricity consumption, which has continued to increase, despite the exceptionally warm winter. A major part of this increased electricity usage has so far been met through imports. The continued growth in electricity imports has largely been a result of the fact that the good water level situation in Sweden and Norway, together with the mild winter, has kept electricity prices exceptionally low on the Nordic electricity exchange. The short period of low temperatures seen at the end of January showed, however, that this type of temperature fluctuation, combined with the restrictions that exist in regard to transfer capacity, can serve to push Nordic exchange electricity prices to record levels. This increase in price also highlights the fact that we are approaching a situation in which capacity will be insufficient to meet demand. A truly tough winter has not been seen since the Nordic region's electricity markets were deregulated. The lesson that needs to be learnt is that Finland needs sufficient capacity of her own to meet demand even during particularly cold winters. Finland used 77.9 billion kWh of electricity last year, up 1.6% or 1.3 billion kWh on 1998. This growth was relatively evenly distributed among different user groups. This year, electricity consumption is forecast to grow by 2-3%

A geometric formulation of exceptional field theory

Energy Technology Data Exchange (ETDEWEB)

Bosque, Pascal du [Arnold Sommerfeld Center for Theoretical Physics,Department für Physik, Ludwig-Maximilians-Universität München,Theresienstraße 37, 80333 München (Germany); Max-Planck-Institut für Physik, Werner-Heisenberg-Institut, Föhringer Ring 6, 80805 München (Germany); Hassler, Falk [Department of Physics and Astronomy, University of North Carolina, Phillips Hall, CB #3255, 120 E. Cameron Ave., Chapel Hill, NC 27599-3255 (United States); City University of New York, The Graduate Center, 365 Fifth Avenue, New York, NY 10016 (United States); Department of Physics, Columbia University, Pupin Hall, 550 West 120th St., New York, NY 10027 (United States); Lüst, Dieter [Arnold Sommerfeld Center for Theoretical Physics,Department für Physik, Ludwig-Maximilians-Universität München,Theresienstraße 37, 80333 München (Germany); Max-Planck-Institut für Physik, Werner-Heisenberg-Institut, Föhringer Ring 6, 80805 München (Germany); Malek, Emanuel [Arnold Sommerfeld Center for Theoretical Physics,Department für Physik, Ludwig-Maximilians-Universität München,Theresienstraße 37, 80333 München (Germany)

2017-03-01

We formulate the full bosonic SL(5) exceptional field theory in a coordinate-invariant manner. Thereby we interpret the 10-dimensional extended space as a manifold with SL(5)×ℝ{sup +}-structure. We show that the algebra of generalised diffeomorphisms closes subject to a set of closure constraints which are reminiscent of the quadratic and linear constraints of maximal seven-dimensional gauged supergravities, as well as the section condition. We construct an action for the full bosonic SL(5) exceptional field theory, even when the SL(5)×ℝ{sup +}-structure is not locally flat.

7 CFR 1779.17 - Exception authority.

Science.gov (United States)

2010-01-01

... Administrator may, in individual cases, make an exception to any requirement or provision of this part which is not inconsistent with the authorizing statute or other applicable law and is determined to be in the...

Complex magnetic monopoles, geometric phases and quantum evolution in the vicinity of diabolic and exceptional points

International Nuclear Information System (INIS)

Nesterov, Alexander I; Aceves de la Cruz, F

2008-01-01

We consider the geometric phase and quantum tunneling in the vicinity of diabolic and exceptional points. We show that the geometric phase associated with the degeneracy points is defined by the flux of complex magnetic monopoles. In the limit of weak coupling, the leading contribution to the real part of the geometric phase is given by the flux of the Dirac monopole plus a quadrupole term, and the expansion of the imaginary part starts with a dipole-like field. For a two-level system governed by a generic non-Hermitian Hamiltonian, we derive a formula to compute the non-adiabatic, complex, geometric phase by integrating over the complex Bloch sphere. We apply our results to study a dissipative two-level system driven by a periodic electromagnetic field and show that, in the vicinity of the exceptional point, the complex geometric phase behaves like a step-function. Studying the tunneling process near and at the exceptional point, we find two different regimes: coherent and incoherent. The coherent regime is characterized by Rabi oscillations, with a one-sheeted hyperbolic monopole emerging in this region of the parameters. The two-sheeted hyperbolic monopole is associated with the incoherent regime. We show that the dissipation results in a series of pulses in the complex geometric phase which disappear when the dissipation dies out. Such a strong coupling effect of the environment is beyond the conventional adiabatic treatment of the Berry phase

Collection, warehousing and dissemination of specimen information: an added value for theriological collections

Directory of Open Access Journals (Sweden)

Damiano Preatoni

2008-02-01

Full Text Available <strong>Abstract> Recent achievements in the technologies for information management and sharing would allow to make more available and exploitable the wealth of data represented by theriological museum collections. Anyway, the scarce diffusion of Information Technology knowledge in the theriological field hinders the transition towards digital cataloguing of collections, often leading to the creation of data bases unable to last through time and without coherent information management policies. The aim of this contribute is to present a concise review of the existing practices and technologies used to design and implement information systems, in order to promote the increasing application of such technologies in the theriological and, in general, in the natural resource conservation field. <strong>Riassunto> <strong>Raccolta e condivisione delle informazioni sui reperti: un valore aggiunto per le collezioni teriologiche.strong> I recenti sviluppi delle tecnologie per la gestione e la condivisione delle informazioni rendono oggi possibile una maggiore fruibilità e disponibilità del patrimonio costituito dalle collezioni teriologiche. Tuttavia, la scarsa diffusione nel contesto teriologico e museologico delle conoscenze nel campo dell’Information Technology rende difficoltosa la transizione verso la catalogazione in formato digitale, portando spesso alla creazione di banche dati che non garantiscono una ragionevole durata nel tempo né la necessaria coerenza nell’organizzazione delle complesse informazioni concernenti il catalogo di una collezione. Il presente contributo offre una concisa rassegna dei principi di base e delle pratiche più comuni nello sviluppo di sistemi informativi, con l’obiettivo di favorire una loro sempre maggiore applicazione nel campo della teriologia e della conservazione delle risorse naturali in generale.

Designing Inclusive Learning for Twice Exceptional Students in Minecraft

Science.gov (United States)

O'Sullivan, Muireann; Robb, Nigel; Howell, Stephen; Marshall, Kevin; Goodman, Lizbeth

2017-01-01

Twice exceptional learners are intellectually or creatively gifted yet also experience one or more learning difficulties. These students face a unique set of challenges in educational settings. Recommended strategies for accommodating twice exceptional learners focus on--among other things--(1) providing freedom and variety, so that students can…

Improving collection and use of interprofessional health workforce data: Progress and peril.

Science.gov (United States)

Spetz, Joanne; Cimiotti, Jeannie P; Brunell, Mary Lou

2016-01-01

Policymakers and other stakeholders need robust data to understand how health care system changes affect the health care workforce and the care it provides, evaluate the effectiveness of health care finance and delivery innovations, and build an adequate supply of nurses and other health professionals to care for an aging and diverse population of patients. In 2011, the Institute of Medicine released a report that called for the creation of an infrastructure to collect and analyze interprofessional health workforce data and issued specific recommendations to reach that overarching goal. This paper examines progress toward each of the main data-related recommendations of the Institute of Medicine Committee on the Future of Nursing, and identifies strategies that can achieve further gains in health workforce data collection. Multiple documents and websites were reviewed to identify the extent to which each of the Institute of Medicine's recommendations have been implemented. There has been little progress toward the Institute of Medicine recommendations regarding data collection, with a few exceptions related to improvements in national data on ambulatory care. This can largely be attributed to a lack of funding. Although there are active and strong collaborative relationships across many key stakeholders, there have not been sufficient resources dedicated to ensuring that new programs advance. More leadership, advocacy, and resources will be needed to build the robust data infrastructure called for by the Institute of Medicine. Copyright © 2016 Elsevier Inc. All rights reserved.

Cultural Considerations for Twice-Exceptional Children from Asian Families

Science.gov (United States)

Park, Soeun

2015-01-01

Since the term twice-exceptional has been entered to the field of gifted education, many studies have investigated the population of students who possess both giftedness and disabilities. It has been shown that there are some challenges to recognizing twice-exceptional children due to current screening and identification process. For this reason,…

Unexpected strong polygyny in the brown-throated three-toed sloth.

Directory of Open Access Journals (Sweden)

Jonathan N Pauli

Full Text Available Promiscuous mating strategies are much more common than previously appreciated. So much so, that several authors have proposed that promiscuity is the "rule" rather than the exception in vertebrate mating systems. Decreasing species mobility and increasing habitat fragmentation have both been suggested to reduce the "polygyny potential" of the environment and promote other mating strategies like promiscuity in females. We explored the social and genetic mating system for one of the most sedentary extant mammals, the brown-throated three-toed sloth (Bradypus variegatus, within a highly fragmented Neotropical habitat. Surprisingly, we found that three-toed sloths were strongly polygynous, with males excluding male competitors from their core ranges, and exhibiting strong reproductive skew. Indeed, only 25% of all resident adult males sired offspring and one individual sired half of all sampled juveniles. Paradoxically, a sedentary life-history strategy seems to facilitate polygyny in fragmented landscapes because multiple females can persist within small patches of habitat, and be monopolized by a single male. Our work demonstrates that strong polygyny can arise in systems in which the polygyny potential should be extremely low, and other strategies, including promiscuity, would be favoured. Mating systems can be influenced by a multitude of factor and are dynamic, varying among taxa, over time, and across habitats; consequently, mating systems remain difficult to predict based on general ecological principles.

AMERICAN EXCEPTIONALISM

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Oana-Andreea Pirnuta

2017-11-01

Full Text Available In an interconnected world where foreign relations matter not only for resources or military alliances but also for cultural relationships, it is highly important to have a better understanding of the power relations among nations. The information carries certain meanings that have important outcomes thus defining the power of a given nation. Foreign policy is the channel through which global politics is exercised. International politics is a hierarchy of power being determined by important cultural, economic as well as geographical aspects. The reasons and strategies that are used in order to reach the outcomes in global politics represent the focus of the present paper. The United States has been the leader in international politics since the early 20th century due to its vast resources and wealth as well as its cultural output. America’s interest in preserving a democratic and free world has its foundation in the beliefs and values it stands for the aim of this paper is to question whether or not there is a concrete premise for the idea of American exceptionalism.

Collecting succulent plants for deposition in a herbarium

CSIR Research Space (South Africa)

Walters, Michele

2011-06-01

Full Text Available with their unwelcoming, prickly habit may seem like more effort than it is worth. For this reason, cacti are often not collected and are thus poorly represented in herbaria (Leuenberger, 1987). This is particularly true for southern Africa where, except for one...�DUH�YDOXDEOH�FRPSOLPHQWDU\\�LGHQWL¿FDWLRQ�WRROV� that provide information on habit or other characters not always visible on dried, preserved specimens (Leuenberger, 1987). 31 Fig. 26. Collecting plant material for deposition in a herbarium. (Picture by SANBI) 2WKHU...

26 CFR 1.79-2 - Exceptions to the rule of inclusion.

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2010-04-01

... 26 Internal Revenue 2 2010-04-01 2010-04-01 false Exceptions to the rule of inclusion. 1.79-2... Exceptions to the rule of inclusion. (a) In general. (1) Section 79(b) provides exceptions for the cost of... he continued in employment) to retire without disability and without the consent of his employer and...

Evidence for strong Breit interaction in dielectronic recombination of highly charged heavy ions.

Science.gov (United States)

Nakamura, Nobuyuki; Kavanagh, Anthony P; Watanabe, Hirofumi; Sakaue, Hiroyuki A; Li, Yueming; Kato, Daiji; Currell, Fred J; Ohtani, Shunsuke

2008-02-22

Resonant strengths have been measured for dielectronic recombination of Li-like iodine, holmium, and bismuth using an electron beam ion trap. By observing the atomic number dependence of the state-resolved resonant strength, clear experimental evidence has been obtained that the importance of the generalized Breit interaction (GBI) effect on dielectronic recombination increases as the atomic number increases. In particular, it has been shown that the GBI effect is exceptionally strong for the recombination through the resonant state [1s2s(2)2p(1/2)](1).

Rehabilitating the Stroke Collection

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Mary Grimmond

2006-06-01

Full Text Available Objective The aim of this project was to complete an analysis of monograph and audiovisual items held in the Central Coast Health Service (CCHS Libraries and containing information relevant to the treatment of acute stroke. Acute stroke is treated by multidisciplinary teams of clinicians based at two hospitals within the CCHS. The adequacy of the library collection was measured by subject coverage and age. Methods The methodology used consisted of three main steps: a literature review; design, administration, and analysis of a questionnaire to members of the CCHS Acute Stroke Team; and an analysis of the libraries’ collections. The research project utilised project management methodology and an evidence based librarianship framework. Results The questionnaire revealed that electronic resources were by far the most frequently used by participants, followed in order by print journals, books, interlibrary loan articles, and audiovisual items. Collection analysis demonstrated that the monograph and audiovisual collections were adequate in both scope and currency to support the information needs of Acute Stroke Team members, with the exception of resources to support patient education. Conclusion The researchers developed recommendations for future collection development in the area of acute stroke resources. Conducting this project within the evidence based librarianship framework helped to develop library staff members’ confidence in their ability to make future collection development decisions, informed by the target group’s information needs and preferences. The collection analysis methodology was designed to be replicated, and new specialist groups within the client base of the library will be targeted to repeat the collection analysis process.

78 FR 43002 - Proposed Collection; Comment Request for Revenue Procedure 2004-29

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2013-07-18

... establish the amounts of substantiated meal and entertainment expenses that are excepted from the 50... of automated collection techniques or other forms of information technology; and (e) estimates of...

48 CFR 225.7003-3 - Exceptions.

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2010-10-01

... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Exceptions. 225.7003-3 Section 225.7003-3 Federal Acquisition Regulations System DEFENSE ACQUISITION REGULATIONS SYSTEM... the recommendation of the Strategic Materials Protection Board pursuant to 10 U.S.C. 187, determines...

Shear-wave velocity compilation for Northridge strong-motion recording sites

Science.gov (United States)

Borcherdt, Roger D.; Fumal, Thomas E.

2002-01-01

Borehole and other geotechnical information collected at the strong-motion recording sites of the Northridge earthquake of January 17, 1994 provide an important new basis for the characterization of local site conditions. These geotechnical data, when combined with analysis of strong-motion recordings, provide an empirical basis to evaluate site coefficients used in current versions of US building codes. Shear-wave-velocity estimates to a depth of 30 meters are derived for 176 strong-motion recording sites. The estimates are based on borehole shear-velocity logs, physical property logs, correlations with physical properties and digital geologic maps. Surface-wave velocity measurements and standard penetration data are compiled as additional constraints. These data as compiled from a variety of databases are presented via GIS maps and corresponding tables to facilitate use by other investigators.

One-loop QCD thermodynamics in a strong homogeneous and static magnetic field

Science.gov (United States)

Rath, Shubhalaxmi; Patra, Binoy Krishna

2017-12-01

We have studied how the equation of state of thermal QCD with two light flavors is modified in a strong magnetic field. We calculate the thermodynamic observables of hot QCD matter up to one-loop, where the magnetic field affects mainly the quark contribution and the gluon part is largely unaffected except for the softening of the screening mass. We have first calculated the pressure of a thermal QCD medium in a strong magnetic field, where the pressure at fixed temperature increases with the magnetic field faster than the increase with the temperature at constant magnetic field. This can be understood from the dominant scale of thermal medium in the strong magnetic field, being the magnetic field, in the same way that the temperature dominates in a thermal medium in the absence of magnetic field. Thus although the presence of a strong magnetic field makes the pressure of hot QCD medium larger, the dependence of pressure on the temperature becomes less steep. Consistent with the above observations, the entropy density is found to decrease with the temperature in the presence of a strong magnetic field which is again consistent with the fact that the strong magnetic field restricts the dynamics of quarks to two dimensions, hence the phase space becomes squeezed resulting in the reduction of number of microstates. Moreover the energy density is seen to decrease and the speed of sound of thermal QCD medium increases in the presence of a strong magnetic field. These findings could have phenomenological implications in heavy ion collisions because the expansion dynamics of the medium produced in non-central ultra-relativistic heavy ion collisions is effectively controlled by both the energy density and the speed of sound.

Exceptional Complex Chromosomal Rearrangements in Three Generations

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Hannie Kartapradja

2015-01-01

Full Text Available We report an exceptional complex chromosomal rearrangement (CCR found in three individuals in a family that involves 4 chromosomes with 5 breakpoints. The CCR was ascertained in a phenotypically abnormal newborn with additional chromosomal material on the short arm of chromosome 4. Maternal karyotyping indicated that the mother carried an apparently balanced CCR involving chromosomes 4, 6, 11, and 18. Maternal transmission of the derivative chromosome 4 resulted in partial trisomy for chromosomes 6q and 18q and a partial monosomy of chromosome 4p in the proband. Further family studies found that the maternal grandmother carried the same apparently balanced CCR as the proband’s mother, which was confirmed using the whole chromosome painting (WCP FISH. High resolution whole genome microarray analysis of DNA from the proband’s mother found no evidence for copy number imbalance in the vicinity of the CCR translocation breakpoints, or elsewhere in the genome, providing evidence that the mother’s and grandmother’s CCRs were balanced at a molecular level. This structural rearrangement can be categorized as an exceptional CCR due to its complexity and is a rare example of an exceptional CCR being transmitted in balanced and/or unbalanced form across three generations.

Heavy quark energy loss far from equilibrium in a strongly coupled collision

CERN Document Server

Chesler, Paul M; Rajagopal, Krishna

2013-01-01

We compute and study the drag force acting on a heavy quark propagating through the matter produced in the collision of two sheets of energy in a strongly coupled gauge theory that can be analyzed holographically. Although this matter is initially far from equilibrium, we find that the equilibrium expression for heavy quark energy loss in a homogeneous strongly coupled plasma with the same instantaneous energy density or pressure as that at the location of the quark describes many qualitative features of our results. One interesting exception is that there is a time delay after the initial collision before the heavy quark energy loss becomes significant. At later times, once a liquid plasma described by viscous hydrodynamics has formed, expressions based upon assuming instantaneous homogeneity and equilibrium provide a semi-quantitative description of our results - as long as the rapidity of the heavy quark is not too large. For a heavy quark with large rapidity, the gradients in the velocity of the hydrodyna...

78 FR 27187 - Proposed Information Collection; Comment Request; Green Sturgeon Endangered Species Act Take...

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2013-05-09

... Collection; Comment Request; Green Sturgeon Endangered Species Act Take Exceptions and Exemptions AGENCY...) of the Endangered Species Act (ESA) were promulgated for the species on June 2, 2010 (75 FR 30714... information collection, as required by the Paperwork Reduction Act of 1995. DATES: Written comments must be...

Is India the Exception?

DEFF Research Database (Denmark)

Nielsen, Klaus; Storm, Rasmus K.

2013-01-01

in international sport events a similar impact of extraordinary growth rates has been almost totally absent in the case of India. Is India an exception? Several econometric studies have shown that income per capita is a significant variable explaining elite sport results such as results in the Olympic Games. From...... in the sports of the Olympic Summer Games. The findings show only a very weak correlation, if any at all. However, a detailed analysis of country evidence shows interesting trends and details. The paper concludes with tentative explanations for the findings including the contradictory country evidence....

Exceptional gauge groups and quantum theory

International Nuclear Information System (INIS)

Horwitz, L.P.; Biedenharn, L.C.

1979-01-01

It is shown that a Hilbert space over the real Clifford algebra C 7 provides a mathematical framework, consistent with the structure of the usual quantum mechanical formalism, for models for the unification of weak, electromagnetic and strong interactions utilizing the exceptional Lie groups. In particular, in case no further structure is assumed beyond that of C 7 , the group of automorphisms leaving invariant a minimal subspace acts, in the ideal generated by that subspace, as G 2 , and the subgroup of this group leaving one generating element (e 7 ) fixed acts, in this ideal, as the color gauge group SU(3). A generalized phase algebra AcontainsC 7 is defined by the requirement that quantum mechanical states can be consistently constructed for a theory in which the smallest linear manifolds are closed over the subalgebra C(1,e 7 ) (isomorphic to the complex field) of C 7 . Eight solutions are found for the generalized phase algebra, corresponding (up to an overall sign), in effect, to the use of +- e 7 as imaginary unit in each of four superselection sectors. Operators linear over these alternative forms of imanary unit provide distinct types of ''lepton--quark'' and ''quark--quark'' transitions. The subgroup in A which leaves expectation values of operators linear over A invariant is its unitary subgroup U(4), and is a realization (explicitly constructed) of the U(4) invariance of the complex scalar product. An embedding of the algebraic Hilbert space into the complex space defined over C(1,e 7 ) is shown to lead to a decomposition into ''lepton and ''quark'' superselection subspaces. The color SU(3) subgroup of G 2 coincides with the SU(3) subgroup of the generalized phase U(4) which leaves the ''lepton'' space invariant. The problem of constructing tensor products is studied, and some remarks are made on observability and the role of nonassociativity

Exceptional polynomials and SUSY quantum mechanics

Indian Academy of Sciences (India)

Abstract. We show that for the quantum mechanical problem which admit classical Laguerre/. Jacobi polynomials as solutions for the Schrödinger equations (SE), will also admit exceptional. Laguerre/Jacobi polynomials as solutions having the same eigenvalues but with the ground state missing after a modification of the ...

32 CFR 644.86 - Exceptions and reservations.

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2010-07-01

... roads, public highways, public utilities, railroads and pipelines,” and “to the reservations, exceptions... or District Engineer, such as requirement to install the pipeline underground and at a specified...

76 FR 3090 - Proposed Information Collection; Comment Request; Alaska Region; Bering Sea and Aleutian Islands...

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2011-01-19

... submitted on or before March 21, 2011. ADDRESSES: Direct all written comments to Diana Hynek, Departmental... fisheries. Program components include quota share allocation, processor quota share allocation, individual... Binding Arbitration process, and fee collection. II. Method of Collection Responses are mailed, except the...

Cognitive function in families with exceptional survival

DEFF Research Database (Denmark)

Barral, Sandra; Cosentino, Stephanie; Costa, Rosann

2012-01-01

members in the offspring generation demonstrate significantly better performance on multiple tasks requiring attention, working memory, and semantic processing when compared with individuals without a family history of exceptional survival, suggesting that cognitive performance may serve as an important......The authors investigated whether cognitive function may be used as an endophenotype for longevity by assessing the cognitive performance of a family-based cohort consisting of 1380 individuals from 283 families recruited for exceptional survival in field centers in Boston, New York, Pittsburgh......, and Denmark. Cognitive performance was assessed in the combined offspring of the Long Life Family Study (LLFS) probands and their LLFS siblings as compared with their spouses' cognitive performance. Our results indicate that the combined offspring of the LLFS probands and their siblings achieve significantly...

Collective excitations in nuclei

International Nuclear Information System (INIS)

Chomaz, Ph.

1998-01-01

The properties of the nucleus cannot be reduced to the properties of its constituents: it is a complex system. The fact that many properties of the nucleus are consequences of the existence of mean-field potential is a manifestation of this complexity. In particular, the nucleons can thus self-organize in collective motions such as giant resonances. Therefore the study of this collective motions is a very good tool to understand the properties of the nucleus itself. The purpose of this article is to stress some aspects of these collective vibrations. We have studied how an ensemble of fermions as the nucleus can self-organize in collective vibrations which are behaving like a gas of bosons in weak interaction. Understanding of these phenomena remains one of the important subjects of actuality in the context of quantal systems in strong interaction. In particular, the study of the states with one or two vibration quanta provides a direct information on the structure of nuclei close to their ground states. Moreover, some collective states appear to be very robust against the onset of chaos. This is the case of the hot giant dipole built on top of a hot nucleus which seems to survive up to rather high temperatures. Their sudden disappearance is still a subject of controversy. It may be that the mean-field and the associated collective states are playing a crucial role also in catastrophic processes such as the phase-transitions. Indeed, when the system is diluted the collective vibrations may become unstable and it seems that these unstable modes provide a natural explanation to the self organization of the system in drops. Finally, considering the diversity of the different structures of exotic nuclei one may expect new vibration types. All these studies are showing the diversity of the collective motions of strongly correlated quantum systems such as the nucleus but many open questions remain to be solved. (authors)

Collective excitations in nuclei

Energy Technology Data Exchange (ETDEWEB)

Chomaz, Ph. [Grand Accelerateur National d`Ions Lourds (GANIL), 14 - Caen (France); Collaboration: La Direction des Sciences de la Matiere du CEA (FR); Le Fonds National de la Recherche Scientifique de Belgique (BE)

1998-12-31

The properties of the nucleus cannot be reduced to the properties of its constituents: it is a complex system. The fact that many properties of the nucleus are consequences of the existence of mean-field potential is a manifestation of this complexity. In particular, the nucleons can thus self-organize in collective motions such as giant resonances. Therefore the study of this collective motions is a very good tool to understand the properties of the nucleus itself. The purpose of this article is to stress some aspects of these collective vibrations. We have studied how an ensemble of fermions as the nucleus can self-organize in collective vibrations which are behaving like a gas of bosons in weak interaction. Understanding of these phenomena remains one of the important subjects of actuality in the context of quantal systems in strong interaction. In particular, the study of the states with one or two vibration quanta provides a direct information on the structure of nuclei close to their ground states. Moreover, some collective states appear to be very robust against the onset of chaos. This is the case of the hot giant dipole built on top of a hot nucleus which seems to survive up to rather high temperatures. Their sudden disappearance is still a subject of controversy. It may be that the mean-field and the associated collective states are playing a crucial role also in catastrophic processes such as the phase-transitions. Indeed, when the system is diluted the collective vibrations may become unstable and it seems that these unstable modes provide a natural explanation to the self organization of the system in drops. Finally, considering the diversity of the different structures of exotic nuclei one may expect new vibration types. All these studies are showing the diversity of the collective motions of strongly correlated quantum systems such as the nucleus but many open questions remain to be solved. (authors) 304 refs., 53 figs., 5 tabs.

38 CFR 14.504 - Domestic relations questions, authority and exceptions.

Science.gov (United States)

2010-07-01

... questions, authority and exceptions. 14.504 Section 14.504 Pensions, Bonuses, and Veterans' Relief... relations questions, authority and exceptions. (a) Regional Counsels have the same authority with respect to... reasonably available facilities, and forward two copies thereof directly to the General Counsel for review...

Effective interactions in strongly-coupled quantum systems

International Nuclear Information System (INIS)

Chen, J.M.C.

1986-01-01

In this thesis, they study the role of effective interactions in strongly-coupled Fermi systems where the short-range correlations introduce difficulties requiring special treatment. The correlated basis function method provides the means to incorporate the short-range correlations and generate the matrix elements of the Hamiltonian and identity operators in a nonorthogonal basis of states which are so important to their studies. In the first half of the thesis, the particle-hole channel is examined to elucidate the effects of collective excitations. Proceeding from a least-action principle, a generalization of the random-phase approximation is developed capable of describing such strongly-interacting Fermi systems as nuclei, nuclear matter, neutron-star matter, and liquid 3 He. A linear response of dynamically correlated system to a weak external perturbation is also derived based on the same framework. In the second half of the thesis, the particle-particle channel is examined to elucidate the effects of pairing in nuclear and neutron-star matter

26 CFR 1.306-2 - Exception.

Science.gov (United States)

2010-04-01

... is the avoidance of Federal income tax. [T.D. 6500, 25 FR 11607, Nov. 26, 1960, as amended by T.D... Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) INCOME TAX (CONTINUED) INCOME TAXES Effects on Recipients § 1.306-2 Exception. (a) If a shareholder terminates his entire stock...

Collective occupational dose for nuclear reactors of the 2., 3. and 4. generation

International Nuclear Information System (INIS)

Guidez, J.; Saturnin, A.

2016-01-01

In France during reactor operation the individual occupational doses are collected and recorded according to the law. When you sum up all the individual doses you get the yearly collective dose expressed in Man.Sv/year. This piece of information can be used to make comparisons between various types of reactors and between reactors of the same type. The results show a steady decrease of the collective dose for all types of reactors over the time except for CANDU reactors for which a slight increase of the dose has appeared since the years 1996-1998. The decrease is due to the continuous improvement of reactor operating and to changes in the reactor design. There is also a constant gap over time between the collective dose for a BWR reactor (1.12 Man.Sv/y) and a PWR reactor 0.60 Man.Sv/y), this gap is certainly due to N 16 nuclide that is created in the primary circuit and transported to turbines in the case of a BWR reactor. For sodium-cooled fast reactors (RNR-Na) the collective dose is below 0.40 Man.Sv/y except for the BN-600 reactor. (A.C.)

Future School Counselors' Perceptions of Twice-Exceptionality: An Exploratory Study

Science.gov (United States)

Leggett, Debra; Shea, Irene; Leggett, Joanna

2011-01-01

An exploratory survey was given to school counselors-in-training to gather preliminary information about their perceptions regarding students with twice-exceptionalities, their professional roles concerning service provision, and the roles of other helpers in assisting twice-exceptional students in the school setting. Thirty-seven participants…

BILP-19-An Ultramicroporous Organic Network with Exceptional Carbon Dioxide Uptake.

Science.gov (United States)

Klumpen, Christoph; Radakovitsch, Florian; Jess, Andreas; Senker, Jürgen

2017-08-12

Porous benzimidazole-based polymers (BILPs) have proven to be promising for carbon dioxide capture and storage. The polarity of their chemical structure in combination with an inherent porosity allows for adsorbing large amounts of carbon dioxide in combination with high selectivities over unpolar guest molecules such as methane and nitrogen. For this reason, among purely organic polymers, BILPs contain some of the most effective networks to date. Nevertheless, they are still outperformed by competitive materials such as metal-organic frameworks (MOFs) or metal doped porous polymers. Here, we report the synthesis of BILP-19 and its exceptional carbon dioxide uptake of up to 6 mmol•g-1 at 273 K, making the network comparable to state-of-the-art materials. BILP-19 precipitates in a particulate structure with a strongly anisotropic growth into platelets, indicating a sheet-like structure for the network. It exhibits only a small microporous but a remarkable ultra-microporous surface area of 144 m2•g-1 and 1325 m2•g-1, respectively. We attribute the exceptional uptake of small guest molecules such as carbon dioxide and water to the distinct ultra-microporosity. Additionally, a pronounced hysteresis for both guests is observed, which in combination with the platelet character is probably caused by an expansion of the interparticle space, creating additional accessible ultra-microporous pore volume. For nitrogen and methane, this effect does not occur which explains their low affinity. In consequence, Henry selectivities of 123 for CO2/N2 at 298 K and 12 for CO2/CH4 at 273 K were determined. The network was carefully characterized with solid-state nuclear magnetic resonance (NMR) and infrared (IR) spectroscopy, thermal gravimetry (TG) and elemental analyses as well as physisorption experiments with Ar, N2, CO2, CH4 and water.

Stark laws and fair market value exceptions: an introduction.

Science.gov (United States)

Siebrasse, Paul B

2007-01-01

This article will focus on one aspect of complexity in modern healthcare, namely the implications of Stark laws and other fraud and abuse provisions, including anti-kickback statutes and HIPAA. Also, this article explores the prevalence of fair market value as an exception in the Stark laws and discusses the meanings of those exceptions. Finally, the article explores basic approaches to assessing fair market value, including cost, income, and marketing approaches.

Chiral Modes at Exceptional Points in Exciton-Polariton Quantum Fluids

Science.gov (United States)

Gao, T.; Li, G.; Estrecho, E.; Liew, T. C. H.; Comber-Todd, D.; Nalitov, A.; Steger, M.; West, K.; Pfeiffer, L.; Snoke, D. W.; Kavokin, A. V.; Truscott, A. G.; Ostrovskaya, E. A.

2018-02-01

We demonstrate the generation of chiral modes-vortex flows with fixed handedness in exciton-polariton quantum fluids. The chiral modes arise in the vicinity of exceptional points (non-Hermitian spectral degeneracies) in an optically induced resonator for exciton polaritons. In particular, a vortex is generated by driving two dipole modes of the non-Hermitian ring resonator into degeneracy. Transition through the exceptional point in the space of the system's parameters is enabled by precise manipulation of real and imaginary parts of the closed-wall potential forming the resonator. As the system is driven to the vicinity of the exceptional point, we observe the formation of a vortex state with a fixed orbital angular momentum (topological charge). This method can be extended to generate higher-order orbital angular momentum states through coalescence of multiple non-Hermitian spectral degeneracies. Our Letter demonstrates the possibility of exploiting nontrivial and counterintuitive properties of waves near exceptional points in macroscopic quantum systems.

Chiral Modes at Exceptional Points in Exciton-Polariton Quantum Fluids.

Science.gov (United States)

Gao, T; Li, G; Estrecho, E; Liew, T C H; Comber-Todd, D; Nalitov, A; Steger, M; West, K; Pfeiffer, L; Snoke, D W; Kavokin, A V; Truscott, A G; Ostrovskaya, E A

2018-02-09

We demonstrate the generation of chiral modes-vortex flows with fixed handedness in exciton-polariton quantum fluids. The chiral modes arise in the vicinity of exceptional points (non-Hermitian spectral degeneracies) in an optically induced resonator for exciton polaritons. In particular, a vortex is generated by driving two dipole modes of the non-Hermitian ring resonator into degeneracy. Transition through the exceptional point in the space of the system's parameters is enabled by precise manipulation of real and imaginary parts of the closed-wall potential forming the resonator. As the system is driven to the vicinity of the exceptional point, we observe the formation of a vortex state with a fixed orbital angular momentum (topological charge). This method can be extended to generate higher-order orbital angular momentum states through coalescence of multiple non-Hermitian spectral degeneracies. Our Letter demonstrates the possibility of exploiting nontrivial and counterintuitive properties of waves near exceptional points in macroscopic quantum systems.

Half-maximal supersymmetry from exceptional field theory

Energy Technology Data Exchange (ETDEWEB)

Malek, Emanuel [Arnold Sommerfeld Center for Theoretical Physics, Department fuer Physik, Ludwig-Maximilians-Universitaet Muenchen (Germany)

2017-10-15

We study D ≥ 4-dimensional half-maximal flux backgrounds using exceptional field theory. We define the relevant generalised structures and also find the integrability conditions which give warped half-maximal Minkowski{sub D} and AdS{sub D} vacua. We then show how to obtain consistent truncations of type II / 11-dimensional SUGRA which break half the supersymmetry. Such truncations can be defined on backgrounds admitting exceptional generalised SO(d - 1 - N) structures, where d = 11 - D, and N is the number of vector multiplets obtained in the lower-dimensional theory. Our procedure yields the most general embedding tensors satisfying the linear constraint of half-maximal gauged SUGRA. We use this to prove that all D ≥ 4 half-maximal warped AdS{sub D} and Minkowski{sub D} vacua of type II / 11-dimensional SUGRA admit a consistent truncation keeping only the gravitational supermultiplet. We also show to obtain heterotic double field theory from exceptional field theory and comment on the M-theory / heterotic duality. In five dimensions, we find a new SO(5, N) double field theory with a (6 + N)-dimensional extended space. Its section condition has one solution corresponding to 10-dimensional N = 1 supergravity and another yielding six-dimensional N = (2, 0) SUGRA. (copyright 2017 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

An Exploitability Analysis Technique for Binary Vulnerability Based on Automatic Exception Suppression

Directory of Open Access Journals (Sweden)

Zhiyuan Jiang

2018-01-01

Full Text Available To quickly verify and fix vulnerabilities, it is necessary to judge the exploitability of the massive crash generated by the automated vulnerability mining tool. While the current manual analysis of the crash process is inefficient and time-consuming, the existing automated tools can only handle execute exceptions and some write exceptions but cannot handle common read exceptions. To address this problem, we propose a method of determining the exploitability based on the exception type suppression. This method enables the program to continue to execute until an exploitable exception is triggered. The method performs a symbolic replay of the crash sample, constructing and reusing data gadget, to bypass the complex exception, thereby improving the efficiency and accuracy of vulnerability exploitability analysis. The testing of typical CGC/RHG binary software shows that this method can automatically convert a crash that cannot be judged by existing analysis tools into a different crash type and judge the exploitability successfully.

A Priceless Playground for Exceptional Children.

Science.gov (United States)

Adkins, Patricia G.

Described are 20 pieces of therapeutic playground equipment constructed by volunteers and fathers of children in the Early Learning Center for Exceptional Children (El Paso, Texas). It is noted that discarded and readily available materials (such as old tires) were used, and that no commercial playground equipment was purchased. Information on the…

12 CFR 717.21 - Affiliate marketing opt-out and exceptions.

Science.gov (United States)

2010-01-01

... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Affiliate marketing opt-out and exceptions. 717.21 Section 717.21 Banks and Banking NATIONAL CREDIT UNION ADMINISTRATION REGULATIONS AFFECTING CREDIT UNIONS FAIR CREDIT REPORTING Affiliate Marketing § 717.21 Affiliate marketing opt-out and exceptions. (a...

Exceptional structures in mathematics and physics and the role of the octonions

Energy Technology Data Exchange (ETDEWEB)

Toppan, Francesco

2003-12-15

There is a growing interest in the logical possibility that exceptional mathematical structures (exceptional Lie and super Lie algebras, the exceptional Jordan algebra, etc.) could be linked to an ultimate 'exceptional' formulation for a Theory Of Everything (TOE). The maximal division algebra of the octonions can be held as the mathematical responsible for the existence of the exceptional structures mentioned above. In this context it is quite motivating to systematically investigate the properties of octonionic spinors and the octonionic realizations of supersymmetry. In particular the M-algebra can be consistently defined for two structures only, a real structure, leading to the standard M-algebra, and an octonionic structure. The octonionic version of the M-algebra admits striking properties induced by octonionic p-forms identities. (author)

Exceptional structures in mathematics and physics and the role of the octonions

International Nuclear Information System (INIS)

Toppan, Francesco

2003-12-01

There is a growing interest in the logical possibility that exceptional mathematical structures (exceptional Lie and super Lie algebras, the exceptional Jordan algebra, etc.) could be linked to an ultimate 'exceptional' formulation for a Theory Of Everything (TOE). The maximal division algebra of the octonions can be held as the mathematical responsible for the existence of the exceptional structures mentioned above. In this context it is quite motivating to systematically investigate the properties of octonionic spinors and the octonionic realizations of supersymmetry. In particular the M-algebra can be consistently defined for two structures only, a real structure, leading to the standard M-algebra, and an octonionic structure. The octonionic version of the M-algebra admits striking properties induced by octonionic p-forms identities. (author)

Effect of Dislocation Density on Deformation Behavior of Super Strong Bainitic Steel

Directory of Open Access Journals (Sweden)

B. Avishan

2017-02-01

Full Text Available Presence of nanoscale bainitic ferrites and high carbon retained austenites that are stable at ambient temperature within the microstructures of super strong bainitic steels makes it possible to achieve exceptional strengths and ductility properties in these groups of nanostructured steels. This article aims to study the effect of the dislocation density variations during tensile testing in ambient temperature on deformation behavior of nanostructured low temperature bainitic steels. Results indicate that dislocation absorption from bainitic ferrite subunits by surrounding retained austenite reduces the work hardening and therefore increases the formability of bainitic ferrite during deformation, which in turn results in a suitable combination of strength and ductility.

41 CFR 60-30.19 - Objections; exceptions; offer of proof.

Science.gov (United States)

2010-07-01

... exceptions to the Administrative Law Judge's recommendations and conclusions. (c) Offer of proof. An offer of...; offer of proof. 60-30.19 Section 60-30.19 Public Contracts and Property Management Other Provisions... EXECUTIVE ORDER 11246 Hearings and Related Matters § 60-30.19 Objections; exceptions; offer of proof. (a...

7 CFR 4290.835 - Exceptions to minimum term of Financing.

Science.gov (United States)

2010-01-01

... 7 Agriculture 15 2010-01-01 2010-01-01 false Exceptions to minimum term of Financing. 4290.835... (âRBICâ) PROGRAM Financing of Enterprises by RBICs Structuring Rbic Financing of Eligible Enterprises-Types of Financings § 4290.835 Exceptions to minimum term of Financing. You may make a Financing with a...

16 CFR 680.21 - Affiliate marketing opt-out and exceptions.

Science.gov (United States)

2010-01-01

... marketing purposes to a consumer with whom you have a pre-existing business relationship; (2) To facilitate... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Affiliate marketing opt-out and exceptions... AFFILIATE MARKETING § 680.21 Affiliate marketing opt-out and exceptions. (a) Initial notice and opt-out...

12 CFR 571.21 - Affiliate marketing opt-out and exceptions.

Science.gov (United States)

2010-01-01

... solicitation for marketing purposes to a consumer with whom you have a pre-existing business relationship; (2... 12 Banks and Banking 5 2010-01-01 2010-01-01 false Affiliate marketing opt-out and exceptions. 571... CREDIT REPORTING Affiliate Marketing § 571.21 Affiliate marketing opt-out and exceptions. (a) Initial...

Lensless ghost imaging through the strongly scattering medium

International Nuclear Information System (INIS)

Yang Zhe; Zhao Xueliang; Li Junlin; Zhao Lianjie; Qin Wei

2016-01-01

Lensless ghost imaging has attracted much interest in recent years due to its profound physics and potential applications. In this paper we report studies of the robust properties of the lensless ghost imaging system with a pseudo-thermal light source in a strongly scattering medium. The effects of the positions of the strong medium on the ghost imaging are investigated. In the lensless ghost imaging system, a pseudo-thermal light is split into two correlated beams by a beam splitter. One beam goes to a charge-coupled detector camera, labeled as CCD2. The other beam goes to an object and then is collected in another charge-coupled detector camera, labeled as CCD1, which serves as a bucket detector. When the strong medium, a pane of ground glass disk, is placed between the object and CCD1, the bucket detector, the quality of ghost imaging is barely affected and a good image could still be obtained. The quality of the ghost imaging can also be maintained, even when the ground glass is rotating, which is the strongest scattering medium so far. However, when the strongly scattering medium is present in the optical path from the light source to CCD2 or the object, the lensless ghost imaging system hardly retrieves the image of the object. A theoretical analysis in terms of the second-order correlation function is also provided. (paper)

Association of Employee Attributes and Exceptional Performance Rating at a National Center of the US Centers for Disease Control and Prevention, 2011.

Science.gov (United States)

Roberts, Henry; Myles, Ranell L; Truman, Benedict I; Dean, Hazel D

2015-01-01

Employee performance evaluation motivates and rewards exceptional individual performance that advances the achievement of organizational goals. The Centers for Disease Control and Prevention (CDC) and its operating units evaluate employee performance annually and reward exceptional performance with a cash award or quality step increase in pay. A summary performance rating (SPR) of "exceptional" indicated personal achievements in 2011 that were beyond expectations described in the employee's performance plan. To determine whether personal attributes and job setting of civil service employees were associated with an exceptional SPR in National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP) in 2011. Data from the CDC 2011 performance management database collected in 2012 were analyzed in 2013 to identify SPR, personal attributes, and job settings of full-time civil service employees. Multivariate logistic regression controlled for confounding and stratified analysis detected effect modifiers of the association between receiving an exceptional SPR in 2011 and gender, race/ethnicity, education, job location, job series, grade level, years in grade, years of federal service, supervisory role, and NCHHSTP division. Among the 1037 employees, exceptional SPR was independently associated with: female gender (adjusted odds ratio: 1.7 [1.3, 2.3]), advanced degrees (doctorate: 1.7 [1.1, 2.5] master's: [1.1, 2.0]), headquarters location (2.8 [1.9, 4.1]), higher pay grade (3.3 [2.4, 4.5]) and years in grade (0-1 years: 1.7 [1.3, 2.4]; 2-4 years: 1.5 [1.1, 2.0]), division level (Division A: 5.0 [2.5, 9.9]; Division B: 5.5 [3.5, 8.8]), and supervisory status (at a lower-pay grade) (odds ratio: 3.7 [1.1, 11.3]). Exceptional SPR is independently associated with personal employee attributes and job settings that are not modifiable by interventions designed to improve employee performance based on accomplishments.

British strong-acid leach process targeted at refractory uranium ores

International Nuclear Information System (INIS)

Anon.

1975-01-01

The UKAEA-patented strong-acid leach process for refractory U ores is briefly outlined with emphasis on its variations from the conventional dilute-acid process and the projected economics for a processing plant using this process. The process uses 6N H 2 SO 4 with a sharply reduced leaching time over conventional processes. The solubilized U is removed by percolation and the use of only about 10 percent liquid produces less effluent. Conventional processing plant equipment can be used except at the feed preparation, acid mixing, curing, and washing stages. Ore can be processed at larger grain sizes and the milling is done in a dry rod mill. Alternatives to the percolation removal of U are listed. Other work being done by UKAEA on U recovery from ores is briefly indicated. (U.S.)

Why HIV/AIDS should be treated as exceptional: arguments from ...

African Journals Online (AJOL)

African Journal of AIDS Research ... The idea that HIV and AIDS gets too much attention and funding emerged in 2008 with a call to end 'AIDS exceptionalism.' This article outlines a short history of AIDS exceptionalism — the idea that HIV and AIDS require a response above and beyond 'normal' health interventions and is ...

76 FR 30714 - Information Collection Being Reviewed by the Federal Communications Commission

Science.gov (United States)

2011-05-26

... not required to file post-consummation notices of pro forma transactions, except that a post... FEDERAL COMMUNICATIONS COMMISSION Information Collection Being Reviewed by the Federal Communications Commission AGENCY: Federal Communications Commission. ACTION: Notice and request for comments...

New Nordic Exceptionalism

DEFF Research Database (Denmark)

Danbolt, Mathias

2016-01-01

At the 2009 Nordic Culture Forum summit in Berlin that centered on the profiling and branding of the Nordic region in a globalized world, one presenter stood out from the crowd. The lobbyist Annika Sigurdardottir delivered a speech that called for the establishment of “The United Nations of Norden...... that have been central to the debates on the branding of Nordicity over the last decades: on the one hand, the discourse of “Nordic exceptionalism,” that since the 1960s has been central to the promotion of a Nordic political, socio-economic, and internationalist “third way” model, and, on the other hand......, the discourse on the “New Nordic,” that emerged out of the New Nordic Food-movement in the early 2000s, and which has given art and culture a privileged role in the international re-fashioning of the Nordic brand. Through an analysis of Kim and Einhorn’s United Nations of Norden (UNN)-performance, the article...

Two new planthopper species (Hemiptera, Fulgoroidea, Caliscelidae) collected in pitfall traps in Zambia.

Science.gov (United States)

Chmurova, Lucia; Webb, Michael D

2016-08-22

Two new species of planthoppers in the family Caliscelidae (Hemiptera: Fulgoroidea) are described from Zambia, i.e., Afronaso spinosa sp. n. and Calampocus zambiaensis sp. n. All specimens are flightless males and nearly all were collected from baited pitfall traps (except for one specimen collected from a yellow pan trap), suggesting that they live near to or on the ground.

STRONG SOLAR WIND DYNAMIC PRESSURE PULSES: INTERPLANETARY SOURCES AND THEIR IMPACTS ON GEOSYNCHRONOUS MAGNETIC FIELDS

International Nuclear Information System (INIS)

Zuo, Pingbing; Feng, Xueshang; Wang, Yi; Xie, Yanqiong; Xu, Xiaojun

2015-01-01

In this investigation, we first present a statistical result of the interplanetary sources of very strong solar wind dynamic pressure pulses (DPPs) detected by WIND during solar cycle 23. It is found that the vast majority of strong DPPs reside within solar wind disturbances. Although the variabilities of geosynchronous magnetic fields (GMFs) due to the impact of positive DPPs have been well established, there appears to be no systematic investigations on the response of GMFs to negative DPPs. Here, we study both the decompression effects of very strong negative DPPs and the compression from strong positive DPPs on GMFs at different magnetic local time sectors. In response to the decompression of strong negative DPPs, GMFs on the dayside near dawn and near dusk on the nightside, are generally depressed. But near the midnight region, the responses of GMF are very diverse, being either positive or negative. For part of the events when GOES is located at the midnight sector, the GMF is found to abnormally increase as the result of magnetospheric decompression caused by negative DPPs. It is known that under certain conditions magnetic depression of nightside GMFs can be caused by the impact of positive DPPs. Here, we find that a stronger pressure enhancement may have a higher probability of producing the exceptional depression of GMF at the midnight region. Statistically, both the decompression effect of strong negative DPPs and the compression effect of strong positive DPPs depend on the magnetic local time, which are stronger at the noon sector

STRONG SOLAR WIND DYNAMIC PRESSURE PULSES: INTERPLANETARY SOURCES AND THEIR IMPACTS ON GEOSYNCHRONOUS MAGNETIC FIELDS

Energy Technology Data Exchange (ETDEWEB)

Zuo, Pingbing; Feng, Xueshang; Wang, Yi [SIGMA Weather Group, State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing (China); Xie, Yanqiong [College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing (China); Xu, Xiaojun, E-mail: pbzuo@spaceweather.ac.cn, E-mail: fengx@spaceweather.ac.cn [Space Science Institute, Macau University of Science and Technology, Macao (China)

2015-10-20

In this investigation, we first present a statistical result of the interplanetary sources of very strong solar wind dynamic pressure pulses (DPPs) detected by WIND during solar cycle 23. It is found that the vast majority of strong DPPs reside within solar wind disturbances. Although the variabilities of geosynchronous magnetic fields (GMFs) due to the impact of positive DPPs have been well established, there appears to be no systematic investigations on the response of GMFs to negative DPPs. Here, we study both the decompression effects of very strong negative DPPs and the compression from strong positive DPPs on GMFs at different magnetic local time sectors. In response to the decompression of strong negative DPPs, GMFs on the dayside near dawn and near dusk on the nightside, are generally depressed. But near the midnight region, the responses of GMF are very diverse, being either positive or negative. For part of the events when GOES is located at the midnight sector, the GMF is found to abnormally increase as the result of magnetospheric decompression caused by negative DPPs. It is known that under certain conditions magnetic depression of nightside GMFs can be caused by the impact of positive DPPs. Here, we find that a stronger pressure enhancement may have a higher probability of producing the exceptional depression of GMF at the midnight region. Statistically, both the decompression effect of strong negative DPPs and the compression effect of strong positive DPPs depend on the magnetic local time, which are stronger at the noon sector.

Tritium monitor and collection system

Science.gov (United States)

Bourne, G.L.; Meikrantz, D.H.; Ely, W.E.; Tuggle, D.G.; Grafwallner, E.G.; Wickham, K.L.; Maltrud, H.R.; Baker, J.D.

1992-01-14

This system measures tritium on-line and collects tritium from a flowing inert gas stream. It separates the tritium from other non-hydrogen isotope contaminating gases, whether radioactive or not. The collecting portion of the system is constructed of various zirconium alloys called getters. These alloys adsorb tritium in any of its forms at one temperature and at a higher temperature release it as a gas. The system consists of four on-line getters and heaters, two ion chamber detectors, two collection getters, and two guard getters. When the incoming gas stream is valved through the on-line getters, 99.9% of it is adsorbed and the remainder continues to the guard getter where traces of tritium not collected earlier are adsorbed. The inert gas stream then exits the system to the decay chamber. Once the on-line getter has collected tritium for a predetermined time, it is valved off and the next on-line getter is valved on. Simultaneously, the first getter is heated and a pure helium purge is employed to carry the tritium from the getter. The tritium loaded gas stream is then routed through an ion chamber which measures the tritium activity. The ion chamber effluent passes through a collection getter that readsorbs the tritium and is removable from the system once it is loaded and is then replaced with a clean getter. Prior to removal of the collection getter, the system switches to a parallel collection getter. The effluent from the collection getter passes through a guard getter to remove traces of tritium prior to exiting the system. The tritium loaded collection getter, once removed, is analyzed by liquid scintillation techniques. The entire sequence is under computer control except for the removal and analysis of the collection getter. 7 figs.

7 CFR 305.17 - Authorized treatments; exceptions.

Science.gov (United States)

2010-01-01

... 7 Agriculture 5 2010-01-01 2010-01-01 false Authorized treatments; exceptions. 305.17 Section 305.17 Agriculture Regulations of the Department of Agriculture (Continued) ANIMAL AND PLANT HEALTH..., Libya, Malta, Macedonia, Morocco, Sardinia, Serbia and Montenegro, Slovenia, Spain, Syria, Tunisia, and...

Event detection and exception handling strategies in the ASDEX Upgrade discharge control system

International Nuclear Information System (INIS)

Treutterer, W.; Neu, G.; Rapson, C.; Raupp, G.; Zasche, D.; Zehetbauer, T.

2013-01-01

Highlights: •Event detection and exception handling is integrated in control system architecture. •Pulse control with local exception handling and pulse supervision with central exception handling are strictly separated. •Local exception handling limits the effect of an exception to a minimal part of the controlled system. •Central Exception Handling solves problems requiring coordinated action of multiple control components. -- Abstract: Thermonuclear plasmas are governed by nonlinear characteristics: plasma operation can be classified into scenarios with pronounced features like L and H-mode, ELMs or MHD activity. Transitions between them may be treated as events. Similarly, technical systems are also subject to events such as failure of measurement sensors, actuator saturation or violation of machine and plant operation limits. Such situations often are handled with a mixture of pulse abortion and iteratively improved pulse schedule reference programming. In case of protection-relevant events, however, the complexity of even a medium-sized device as ASDEX Upgrade requires a sophisticated and coordinated shutdown procedure rather than a simple stop of the pulse. The detection of events and their intelligent handling by the control system has been shown to be valuable also in terms of saving experiment time and cost. This paper outlines how ASDEX Upgrade's discharge control system (DCS) detects events and handles exceptions in two stages: locally and centrally. The goal of local exception handling is to limit the effect of an unexpected or asynchronous event to a minimal part of the controlled system. Thus, local exception handling facilitates robustness to failures but keeps the decision structures lean. A central state machine deals with exceptions requiring coordinated action of multiple control components. DCS implements the state machine by means of pulse schedule segments containing pre-programmed waveforms to define discharge goal and control

Event detection and exception handling strategies in the ASDEX Upgrade discharge control system

Energy Technology Data Exchange (ETDEWEB)

Treutterer, W., E-mail: Wolfgang.Treutterer@ipp.mpg.de; Neu, G.; Rapson, C.; Raupp, G.; Zasche, D.; Zehetbauer, T.

2013-10-15

Highlights: •Event detection and exception handling is integrated in control system architecture. •Pulse control with local exception handling and pulse supervision with central exception handling are strictly separated. •Local exception handling limits the effect of an exception to a minimal part of the controlled system. •Central Exception Handling solves problems requiring coordinated action of multiple control components. -- Abstract: Thermonuclear plasmas are governed by nonlinear characteristics: plasma operation can be classified into scenarios with pronounced features like L and H-mode, ELMs or MHD activity. Transitions between them may be treated as events. Similarly, technical systems are also subject to events such as failure of measurement sensors, actuator saturation or violation of machine and plant operation limits. Such situations often are handled with a mixture of pulse abortion and iteratively improved pulse schedule reference programming. In case of protection-relevant events, however, the complexity of even a medium-sized device as ASDEX Upgrade requires a sophisticated and coordinated shutdown procedure rather than a simple stop of the pulse. The detection of events and their intelligent handling by the control system has been shown to be valuable also in terms of saving experiment time and cost. This paper outlines how ASDEX Upgrade's discharge control system (DCS) detects events and handles exceptions in two stages: locally and centrally. The goal of local exception handling is to limit the effect of an unexpected or asynchronous event to a minimal part of the controlled system. Thus, local exception handling facilitates robustness to failures but keeps the decision structures lean. A central state machine deals with exceptions requiring coordinated action of multiple control components. DCS implements the state machine by means of pulse schedule segments containing pre-programmed waveforms to define discharge goal and control

X exceptionalism in Caenorhabditis speciation.

Science.gov (United States)

Cutter, Asher D

2017-11-13

Speciation genetics research in diverse organisms shows the X-chromosome to be exceptional in how it contributes to "rules" of speciation. Until recently, however, the nematode phylum has been nearly silent on this issue, despite the model organism Caenorhabditis elegans having touched most other topics in biology. Studies of speciation with Caenorhabditis accelerated with the recent discovery of species pairs showing partial interfertility. The resulting genetic analyses of reproductive isolation in nematodes demonstrate key roles for the X-chromosome in hybrid male sterility and inviability, opening up new understanding of the genetic causes of Haldane's rule, Darwin's corollary to Haldane's rule, and enabling tests of the large-X effect hypothesis. Studies to date implicate improper chromatin regulation of the X-chromosome by small RNA pathways as integral to hybrid male dysfunction. Sexual transitions in reproductive mode to self-fertilizing hermaphroditism inject distinctive molecular evolutionary features into the speciation process for some species. Caenorhabditis also provides unique opportunities for analysis in a system with XO sex determination that lacks a Y-chromosome, sex chromosome-dependent sperm competition differences and mechanisms of gametic isolation, exceptional accessibility to the development process and rapid experimental evolution. As genetic analysis of reproductive isolation matures with investigation of multiple pairs of Caenorhabditis species and new species discovery, nematodes will provide a powerful complement to more established study organisms for deciphering the genetic basis of and rules to speciation. © 2017 John Wiley & Sons Ltd.

What Is Nigeria? Unsettling the Myth of Exceptionalism

Directory of Open Access Journals (Sweden)

Aghogho Akpome

2015-01-01

Full Text Available This article explores perceptions and representations of Nigeria and Nigerians in the popular global imaginary. It analyses selected popular media narratives in order to foreground contradictions and paradoxes in the ways in which the country and people of Nigeria are discursively constructed. By doing so, it interrogates stereotypes of corruption and criminality as well as myths of exceptionalism about Nigeria and Nigerians originating from both within and outside the country. The analysis reveals that the generalised portrayal of Nigeria and Nigerians as exceptional social subjects is characterised by contradictions and inaccuracies in dominant representational practices and cannot be justified by the verifiable empirical information available on the country and its people.

Search for Correlations between Prolate-Shape Collective and Oblate-Shape Non-Collective Nuclear Rotation: High Spin States in 159,160 Yb

International Nuclear Information System (INIS)

Byrski, T.; Beck, F.A.; Sharpey-Schafer, J.F.

1987-01-01

High-spin states of 159,160 Yb have been studied using the escape-suppressed array TESSA 2. Extensions of yrast and lateral bands have been found up to I ∼40. Experimental data suggest strong correlations between maximum alignment configurations of the valence nucleons and related collective states. Theoretical analysis fully supports the idea of prolate-collective vs. oblate-non-collective correlations. Band termination interpretation is discussed

Global diversity of marine isopods (except Asellota and crustacean symbionts.

Directory of Open Access Journals (Sweden)

Gary C B Poore

Full Text Available The crustacean order Isopoda (excluding Asellota, crustacean symbionts and freshwater taxa comprise 3154 described marine species in 379 genera in 37 families according to the WoRMS catalogue. The history of taxonomic discovery over the last two centuries is reviewed. Although a well defined order with the Peracarida, their relationship to other orders is not yet resolved but systematics of the major subordinal taxa is relatively well understood. Isopods range in size from less than 1 mm to Bathynomus giganteus at 365 mm long. They inhabit all marine habitats down to 7280 m depth but with few doubtful exceptions species have restricted biogeographic and bathymetric ranges. Four feeding categories are recognised as much on the basis of anecdotal evidence as hard data: detritus feeders and browsers, carnivores, parasites, and filter feeders. Notable among these are the Cymothooidea that range from predators and scavengers to external blood-sucking micropredators and parasites. Isopods brood 10-1600 eggs depending on individual species. Strong sexual dimorphism is characteristic of several families, notably in Gnathiidae where sessile males live with a harem of females while juvenile praniza stages are ectoparasites of fish. Protandry is known in Cymothoidae and protogyny in Anthuroidea. Some Paranthuridae are neotenous. About half of all coastal, shelf and upper bathyal species have been recorded in the MEOW temperate realms, 40% in tropical regions and the remainder in polar seas. The greatest concentration of temperate species is in Australasia; more have been recorded from temperate North Pacific than the North Atlantic. Of tropical regions, the Central Indo-Pacific is home to more species any other region. Isopods are decidedly asymmetrical latitudinally with 1.35 times as many species in temperate Southern Hemisphere than the temperate North Atlantic and northern Pacific, and almost four times as many Antarctic as Arctic species. More species

Exceptional circles of radial potentials

International Nuclear Information System (INIS)

Music, M; Perry, P; Siltanen, S

2013-01-01

A nonlinear scattering transform is studied for the two-dimensional Schrödinger equation at zero energy with a radial potential. Explicit examples are presented, both theoretically and computationally, of potentials with nontrivial singularities in the scattering transform. The singularities arise from non-uniqueness of the complex geometric optics solutions that define the scattering transform. The values of the complex spectral parameter at which the singularities appear are called exceptional points. The singularity formation is closely related to the fact that potentials of conductivity type are ‘critical’ in the sense of Murata. (paper)

13 CFR 107.1000 - Licensees without Leverage-exceptions to the regulations.

Science.gov (United States)

2010-01-01

... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Licensees without Leverage-exceptions to the regulations. 107.1000 Section 107.1000 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION SMALL BUSINESS INVESTMENT COMPANIES Non-leveraged Licensees-Exceptions to Regulations § 107.1000...

15 CFR 732.4 - Steps regarding License Exceptions.

Science.gov (United States)

2010-01-01

... General Prohibition Six (Embargo), consult part 746 of the EAR for applicable License Exceptions. (b... export or reexport is subject to General Prohibition Six (Embargo) for embargoed destinations, License...

Public Policy Exceptions in European Private Law : A New Research Project

NARCIS (Netherlands)

Colombi Ciacchi, Aurelia

2014-01-01

Public policy exceptions arguably exist in all fields of private and commerciallaw, not only in private international law but also in substantive law. In substantive private law, the term 'public policy exception' could be used to indicate general illegality rules that make an act of private

19 CFR 134.33 - J-List exceptions.

Science.gov (United States)

2010-04-01

... planed, tongued and grooved T.D.s 49750; 50366(6). Flowers, artificial, except bunches. Flowers, cut... dimensions, shape or form. Monuments. Nails, spikes, and staples. Natural products, such as vegetables...) T.D. 49750. Skins, fur, dressed or dyed. Skins, raw fur. Sponges. Springs, watch. Stamps, postage...

Strong Quantum Size Effects in Pb(111) Thin Films Mediated by Anomalous Friedel Oscillations

Science.gov (United States)

Jia, Yu; Wu, Biao; Li, Chong; Einstein, T. L.; Weitering, H. H.; Zhang, Zhenyu

2010-08-01

Using first-principles calculations within density functional theory, we study Friedel oscillations (FOs) in the electron density at different metal surfaces and their influence on the lattice relaxation and stability of ultrathin metal films. We show that the FOs at the Pb(111) surface decay as 1/x with the distance x from the surface, different from the conventional 1/x2 power law at other metal surfaces. The underlying physical reason for this striking difference is tied to the strong nesting of the two different Fermi sheets along the Pb(111) direction. The interference of the strong FOs emanating from the two surfaces of a Pb(111) film, in turn, not only results in superoscillatory interlayer relaxations around the center of the film, but also determines its stability in the quantum regime. As a simple and generic picture, the present findings also explain why quantum size effects are exceptionally robust in Pb(111) films.

The Advocacy Experiences of Parents of Elementary Age, Twice-Exceptional Children

Science.gov (United States)

Besnoy, Kevin D.; Swoszowski, Nicole C.; Newman, Jane L.; Floyd, Amanda; Jones, Parrish; Byrne, Caitlin

2015-01-01

For many parents, successfully advocating for their twice-exceptional child can be intimidating and overwhelming. Using grounded theory, we conducted a study with parents (n = 8) of elementary age, twice-exceptional children to learn about their advocacy experiences. Findings revealed that parents simultaneously advocated for their child's…

5 CFR 316.702 - Excepted positions brought into the competitive service.

Science.gov (United States)

2010-01-01

... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Excepted positions brought into the competitive service. 316.702 Section 316.702 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL... provisions of § 316.402. (d) An employee who was serving under an excepted appointment with a definite time...

24 CFR 203.41 - Free assumability; exceptions.

Science.gov (United States)

2010-04-01

... otherwise provided in the HOME Investment Partnerships (HOME) and the Homeownership and Opportunity for... limitations applicable in the jurisdiction. (3) Except as otherwise required by the HOME and HOPE programs... that the holder of the right of entry for condition broken also executes the mortgage, and that the...

15 CFR 700.80 - Adjustments or exceptions.

Science.gov (United States)

2010-01-01

...) BUREAU OF INDUSTRY AND SECURITY, DEPARTMENT OF COMMERCE NATIONAL SECURITY INDUSTRIAL BASE REGULATIONS... exceptions. (a) A person may submit a request to the Office of Strategic Industries and Economic Security, U... interim relief is granted in writing by the Office of Strategic Industries and Economic Security. (d) A...

46 CFR 520.13 - Exemptions and exceptions.

Science.gov (United States)

2010-10-01

... AUTOMATED TARIFFS § 520.13 Exemptions and exceptions. (a) General. Exemptions from the requirements of this... for the purpose of sale. (ii) British Columbia and Puget Sound Ports; rail cars—(A) Through rates. Transportation by water of cargo moving in rail cars between British Columbia, Canada and United States ports on...

Working with Navajo Parents of Exceptional Children.

Science.gov (United States)

Jones, Doris; And Others

Undergraduate students at Northern Arizona University interviewed and surveyed 20 staff members at Kayenta Unified School District (KUSD) on the Navajo Reservation and 14 parents of exceptional Navajo children enrolled in KUSD. Both groups were asked to identify challenges affecting the working relationship between parents and school on a rural…

Surface and 3D Quantum Hall Effects from Engineering of Exceptional Points in Nodal-Line Semimetals

Science.gov (United States)

Molina, Rafael A.; González, José

2018-04-01

We show that, under a strong magnetic field, a 3D nodal-line semimetal is driven into a topological insulating phase in which the electronic transport takes place at the surface of the material. When the magnetic field is perpendicular to the nodal ring, the surface states of the semimetal are transmuted into Landau states which correspond to exceptional points, i.e., branch points in the spectrum of a non-Hermitian Hamiltonian which arise upon the extension to complex values of the momentum. The complex structure of the spectrum then allows us to express the number of zero-energy flat bands in terms of a new topological invariant counting the number of exceptional points. When the magnetic field is parallel to the nodal ring, we find that the bulk states are built from the pairing of surfacelike evanescent waves, giving rise to a 3D quantum Hall effect with a flat level of Landau states residing in parallel 2D slices of the 3D material. The Hall conductance is quantized in either case in units of e2/h , leading in the 3D Hall effect to a number of channels growing linearly with the section of the surface and opening the possibility to observe a macroscopic chiral current at the surface of the material.

7 CFR 52.1850 - Sizes of raisins with seeds-except layer or cluster.

Science.gov (United States)

2010-01-01

... 7 Agriculture 2 2010-01-01 2010-01-01 false Sizes of raisins with seeds-except layer or cluster... Raisins 1 Type III-Raisins with Seeds § 52.1850 Sizes of raisins with seeds—except layer or cluster. The sizes of Raisins with Seeds—except for Layer or Cluster Raisins with Seeds, are not incorporated in the...

39 CFR 959.24 - Exceptions to initial decision or tentative decision.

Science.gov (United States)

2010-07-01

... failed to file an answer, may appeal to the Judicial Officer by filing exceptions in a brief on appeal... in a proceeding presided over by the Judicial Officer, except one who has failed to file an answer... matter in the order indicated: (1) A subject index of the matters presented, with page references; a...

Voices from the Classroom: Exceptional Teachers Speak.

Science.gov (United States)

Maeroff, Gene I., Ed.

The opinions and experiences reflected in this report are those of exceptional teachers chosen in a national competition, "Thanks to Teachers," sponsored by Apple Computer, Inc., the National Foundation for the Improvement of Education, the National Alliance of Business, and Group W Television. The report is divided into four sections: (1) the…

7 CFR 52.1852 - Grades of raisins with seeds-except layer or cluster.

Science.gov (United States)

2010-01-01

... 7 Agriculture 2 2010-01-01 2010-01-01 false Grades of raisins with seeds-except layer or cluster... Raisins 1 Type III-Raisins with Seeds § 52.1852 Grades of raisins with seeds—except layer or cluster. (a...—Allowances for Defects in Raisins With Seeds—Except Layer or Cluster Defects U.S. Grade A U.S. Grade B U.S...

THE EXCEPTION OF UNCONSTITUTIONALITY RAISED BEFORE AN INTERNATIONAL ARBITRAL TRIBUNAL

OpenAIRE

Eugen HURUBÃ; Luminita GABURA

2014-01-01

The main aim of the paper work is to determine whether the Constitutional Court of Romania could be notified by international tribunals in relation to cases tried under Romanian law. On 5 March 2013 the Constitutional Court of Romania decided, for the first time, on a case concerning an exception of unconstitutionality raised before an international tribunal of commercial arbitration. The exception of unconstitutionality of a Government Emergency Ordinance was raised in an arbitration case pe...

Vendors: Gifts Are the Exception to the Rule.

Science.gov (United States)

Natale, Jo Anna

1992-01-01

Informal interviews with several people working in different industries reveal that, without exception, the vendors say companies do not routinely offer school officials gifts and entertainment to sway purchasing decisions, but that it does happen. (MLF)

Danish Exceptionalism: Explaining the Unique Increase in Social Trust over the Past 30 Years

DEFF Research Database (Denmark)

Sønderskov, Kim Mannemar; Dinesen, Peter Thisted

Given the positive societal consequences of social trust and the exceptional high levels of trust found in the Nordic countries there is a growing interest in the background for Nordic trust exceptionalism. Reflecting the debate about the roots of trust, the question is whether this exceptionalism...

Exceptional quantum geometry and particle physics

Directory of Open Access Journals (Sweden)

Michel Dubois-Violette

2016-11-01

Full Text Available Based on an interpretation of the quark–lepton symmetry in terms of the unimodularity of the color group SU(3 and on the existence of 3 generations, we develop an argumentation suggesting that the “finite quantum space” corresponding to the exceptional real Jordan algebra of dimension 27 (the Euclidean Albert algebra is relevant for the description of internal spaces in the theory of particles. In particular, the triality which corresponds to the 3 off-diagonal octonionic elements of the exceptional algebra is associated to the 3 generations of the Standard Model while the representation of the octonions as a complex 4-dimensional space C⊕C3 is associated to the quark–lepton symmetry (one complex for the lepton and 3 for the corresponding quark. More generally it is suggested that the replacement of the algebra of real functions on spacetime by the algebra of functions on spacetime with values in a finite-dimensional Euclidean Jordan algebra which plays the role of “the algebra of real functions” on the corresponding almost classical quantum spacetime is relevant in particle physics. This leads us to study the theory of Jordan modules and to develop the differential calculus over Jordan algebras (i.e. to introduce the appropriate notion of differential forms. We formulate the corresponding definition of connections on Jordan modules.

Vulnerability of historical masonry buildings under exceptional actions

OpenAIRE

Florio, Gilda

2010-01-01

The topic of this thesis is the vulnerability assessment of historical masonry buildings under exceptional actions. In order to develop the study, the structural performance of masonry aggregates and isolated monumental buildings under extreme loading condition have been investigated.

49 CFR 89.7 - Exceptions to delegated authority.

Science.gov (United States)

2010-10-01

... not apply to any claim: (a) As to which there is an indication of (1) fraud; (2) the presentation of a... the claim; (b) Based on tax statutes; or (c) Arising from an exception made by the General Accounting...

Collective Signal Processing in Cluster Chemotaxis: Roles of Adaptation, Amplification, and Co-attraction in Collective Guidance

Science.gov (United States)

Camley, Brian A.; Zimmermann, Juliane; Levine, Herbert; Rappel, Wouter-Jan

2016-01-01

Single eukaryotic cells commonly sense and follow chemical gradients, performing chemotaxis. Recent experiments and theories, however, show that even when single cells do not chemotax, clusters of cells may, if their interactions are regulated by the chemoattractant. We study this general mechanism of “collective guidance” computationally with models that integrate stochastic dynamics for individual cells with biochemical reactions within the cells, and diffusion of chemical signals between the cells. We show that if clusters of cells use the well-known local excitation, global inhibition (LEGI) mechanism to sense chemoattractant gradients, the speed of the cell cluster becomes non-monotonic in the cluster’s size—clusters either larger or smaller than an optimal size will have lower speed. We argue that the cell cluster speed is a crucial readout of how the cluster processes chemotactic signals; both amplification and adaptation will alter the behavior of cluster speed as a function of size. We also show that, contrary to the assumptions of earlier theories, collective guidance does not require persistent cell-cell contacts and strong short range adhesion. If cell-cell adhesion is absent, and the cluster cohesion is instead provided by a co-attraction mechanism, e.g. chemotaxis toward a secreted molecule, collective guidance may still function. However, new behaviors, such as cluster rotation, may also appear in this case. Co-attraction and adaptation allow for collective guidance that is robust to varying chemoattractant concentrations while not requiring strong cell-cell adhesion. PMID:27367541

An Exception Handling Service for Software Agent Ensembles

National Research Council Canada - National Science Library

Klein, Mark

2004-01-01

... (I) the creation of better contingent contracts between agents (both human and software- based) as well as (2) exception-handling agents that monitor MAS for problem symptoms, diagnose the underlying problems, and intervene as appropriate to avoid or resolve these problems.

Multiply Degenerate Exceptional Points and Quantum Phase Transitions

Czech Academy of Sciences Publication Activity Database

Borisov, D.; Růžička, František; Znojil, Miloslav

2015-01-01

Roč. 54, č. 12 (2015), s. 4293-4305 ISSN 0020-7748 Institutional support: RVO:61389005 Keywords : quantum mechanics * Cryptohermitian observbles * spectra and pseudospectra * real exceptional points * phase transitions Subject RIV: BE - Theoretical Physics Impact factor: 1.041, year: 2015

75 FR 49013 - Agency Information Collection Activities: Proposed Request and Comment Request

Science.gov (United States)

2010-08-12

... countries to eliminate double Social Security coverage and taxation where, except for the provisions of the... October 12, 2010. Individuals can obtain copies of the collection instruments by calling the SSA Reports... of coverage. The certificate serves as proof of exemption from coverage and taxation under the system...

Exceptional Points and Dynamical Phase Transitions

Directory of Open Access Journals (Sweden)

I. Rotter

2010-01-01

Full Text Available In the framework of non-Hermitian quantum physics, the relation between exceptional points,dynamical phase transitions and the counter intuitive behavior of quantum systems at high level density is considered. The theoretical results obtained for open quantum systems and proven experimentally some years ago on a microwave cavity, may explain environmentally induce deffects (including dynamical phase transitions, which have been observed in various experimental studies. They also agree(qualitatively with the experimental results reported recently in PT symmetric optical lattices.

49 CFR 173.420 - Uranium hexafluoride (fissile, fissile excepted and non-fissile).

Science.gov (United States)

2010-10-01

... 49 Transportation 2 2010-10-01 2010-10-01 false Uranium hexafluoride (fissile, fissile excepted....420 Uranium hexafluoride (fissile, fissile excepted and non-fissile). (a) In addition to any other... non-fissile uranium hexafluoride must be offered for transportation as follows: (1) Before initial...

Phase transition transistors based on strongly-correlated materials

Science.gov (United States)

Nakano, Masaki

2013-03-01

The field-effect transistor (FET) provides electrical switching functions through linear control of the number of charges at a channel surface by external voltage. Controlling electronic phases of condensed matters in a FET geometry has long been a central issue of physical science. In particular, FET based on a strongly correlated material, namely ``Mott transistor,'' has attracted considerable interest, because it potentially provides gigantic and diverse electronic responses due to a strong interplay between charge, spin, orbital and lattice. We have investigated electric-field effects on such materials aiming at novel physical phenomena and electronic functions originating from strong correlation effects. Here we demonstrate electrical switching of bulk state of matter over the first-order metal-insulator transition. We fabricated FETs based on VO2 with use of a recently developed electric-double-layer transistor technique, and found that the electrostatically induced carriers at a channel surface drive all preexisting localized carriers of 1022 cm-3 even inside a bulk to motion, leading to bulk carrier delocalization beyond the electrostatic screening length. This non-local switching of bulk phases is achieved with just around 1 V, and moreover, a novel non-volatile memory like character emerges in a voltage-sweep measurement. These observations are apparently distinct from those of conventional FETs based on band insulators, capturing the essential feature of collective interactions in strongly correlated materials. This work was done in collaboration with K. Shibuya, D. Okuyama, T. Hatano, S. Ono, M. Kawasaki, Y. Iwasa, and Y. Tokura. This work was supported by the Japan Society for the Promotion of Science (JSAP) through its ``Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST Program).''

Collective excitations in nuclei

International Nuclear Information System (INIS)

Chomaz, Ph.

1997-01-01

The properties of the nucleus cannot be reduced to the properties of its constituents: it is a complex system. The fact that many properties of the nucleus are consequences of the existence of mean-field potential is a manifestation of this complexity. In particular the nucleons can thus self-organize in collective motions such as giant resonances. Therefore the study of these collective motions is a very good to understand the properties of the nucleus itself. The purpose of this article was to stress some aspects of these collective vibrations. In particular we have studied how an ensemble of fermions as the nucleus can self-organize in collective vibrations which are behaving like a gas of bosons in weak interaction. The understanding of these phenomena remains one of the important subjects of actually in the context of quantal systems in strong interaction. In particular the study of the states with one or two vibration quanta provides a direct information on the structure if nuclei close to their ground states. (author)

Collective excitations in nuclei

Energy Technology Data Exchange (ETDEWEB)

Chomaz, Ph

1997-12-31

The properties of the nucleus cannot be reduced to the properties of its constituents: it is a complex system. The fact that many properties of the nucleus are consequences of the existence of mean-field potential is a manifestation of this complexity. In particular the nucleons can thus self-organize in collective motions such as giant resonances. Therefore the study of these collective motions is a very good to understand the properties of the nucleus itself. The purpose of this article was to stress some aspects of these collective vibrations. In particular we have studied how an ensemble of fermions as the nucleus can self-organize in collective vibrations which are behaving like a gas of bosons in weak interaction. The understanding of these phenomena remains one of the important subjects of actually in the context of quantal systems in strong interaction. In particular the study of the states with one or two vibration quanta provides a direct information on the structure if nuclei close to their ground states. (author) 270 refs.

Strong-back safety latch

International Nuclear Information System (INIS)

DeSantis, G.N.

1995-01-01

The calculation decides the integrity of the safety latch that will hold the strong-back to the pump during lifting. The safety latch will be welded to the strong-back and will latch to a 1.5-in. dia cantilever rod welded to the pump baseplate. The static and dynamic analysis shows that the safety latch will hold the strong-back to the pump if the friction clamps fail and the pump become free from the strong-back. Thus, the safety latch will meet the requirements of the Lifting and Rigging Manual for under the hook lifting for static loading; it can withstand shock loads from the strong-back falling 0.25 inch

The INGV Real Time Strong Motion Database

Science.gov (United States)

Massa, Marco; D'Alema, Ezio; Mascandola, Claudia; Lovati, Sara; Scafidi, Davide; Gomez, Antonio; Carannante, Simona; Franceschina, Gianlorenzo; Mirenna, Santi; Augliera, Paolo

2017-04-01

The INGV real time strong motion data sharing is assured by the INGV Strong Motion Database. ISMD (http://ismd.mi.ingv.it) was designed in the last months of 2011 in cooperation among different INGV departments, with the aim to organize the distribution of the INGV strong-motion data using standard procedures for data acquisition and processing. The first version of the web portal was published soon after the occurrence of the 2012 Emilia (Northern Italy), Mw 6.1, seismic sequence. At that time ISMD was the first European real time web portal devoted to the engineering seismology community. After four years of successfully operation, the thousands of accelerometric waveforms collected in the archive need necessary a technological improvement of the system in order to better organize the new data archiving and to make more efficient the answer to the user requests. ISMD 2.0 was based on PostgreSQL (www.postgresql.org), an open source object- relational database. The main purpose of the web portal is to distribute few minutes after the origin time the accelerometric waveforms and related metadata of the Italian earthquakes with ML≥3.0. Data are provided both in raw SAC (counts) and automatically corrected ASCII (gal) formats. The web portal also provide, for each event, a detailed description of the ground motion parameters (i.e. Peak Ground Acceleration, Velocity and Displacement, Arias and Housner Intensities) data converted in velocity and displacement, response spectra up to 10.0 s and general maps concerning the recent and the historical seismicity of the area together with information about its seismic hazard. The focal parameters of the events are provided by the INGV National Earthquake Center (CNT, http://cnt.rm.ingv.it). Moreover, the database provides a detailed site characterization section for each strong motion station, based on geological, geomorphological and geophysical information. At present (i.e. January 2017), ISMD includes 987 (121

Instability of collective strong-interaction phenomena in hadron production as a possible origin of the weak and electromagnetic interactions

International Nuclear Information System (INIS)

Arnold, R.C.

1975-12-01

A systematic calculus of long-range Regge cut effects in multiparticle production is constructed in the form of an infrared-divergent stochastic field theory. Total cross sections and two-body overlap integrals in such a theory may depend very sensitively upon internal quantum-numbers of incident particles, resulting in a strong symmetry breaking at ultra-high energies. Such symmetry violations will influence low energy processes through dispersion relations, and a bootstrap of weak interactions becomes possible. A rough analytic estimate of the scale of thresholds for such effects yields a BCS-type gap equation, which expresses the scale of weak and electromagnetic couplings in terms of purely strong-interaction parameters

Is India the Exception?

DEFF Research Database (Denmark)

Nielsen, Klaus; Storm, Rasmus K.

India is still the extreme under-achiever in international sport competitions. Whereas in China high growth rates have been accompanied by a huge improvement in its ranking in international sport events a similar impact of extraordinary growth rates is seemingly totally absent in the case of India....... Is India an exception? Several econometric studies have shown that income per capita is a significant variable explaining elite sport results such as results in the Olympic Games. From this stylized fact follows the hypothesis that 'above/below average' growth rates lead to relative improvements...... between growth in GNP per capita and growth in medal points (no. 1: five points, no. 2: three points, no.3: two points) in Olympic Summer Games. The findings show no correlation and in a few calculations a very weak correlation. Among the countries behaving in accordance with the hypothesis in the most...

Center variation in the use of nonstandardized model for end-stage liver disease exception points.

Science.gov (United States)

Goldberg, David S; Makar, George; Bittermann, Therese; French, Benjamin

2013-12-01

The Model for End-Stage Liver Disease (MELD) score is an imperfect prognosticator of waitlist dropout, so transplant centers may apply for exception points to increase a waitlist candidate's priority on the waitlist. Exception applications are categorized as recognized exceptional diagnoses (REDs; eg, hepatocellular carcinoma) and non-REDs (eg, cholangitis). Although prior work has demonstrated regional variation in the use of exceptions, no work has examined the between-center variability. We analyzed all new waitlist candidates from February 27, 2002 to June 3, 2011 to explore variations in the use of non-REDs, for which no strict exception criteria exist. There were 58,641 new waitlist candidates, and 4356 (7.4%) applied for a non-RED exception. The number of applications increased steadily over time, as did the approval rates for such applications: from variation to ensure the appropriate and equitable use of non-RED exceptions. © 2013 American Association for the Study of Liver Diseases.

Danish Exceptionalism: Explaining the Unique Increase in Social Trust over the Past 30 Years

DEFF Research Database (Denmark)

Sønderskov, Kim Mannemar; Dinesen, Peter Thisted

2014-01-01

Given the positive societal consequences of social trust and the exceptional high levels of trust found in the Nordic countries, there is a growing interest in the background for Nordic trust exceptionalism. Reflecting the debate about the roots of trust, the question is whether this exceptionalism...... has been a permanent feature of these societies, i.e., an enduring cultural trait, or primarily been shaped by more contemporary experiential forces. This article examines the roots of the present Nordic trust exceptionalism by means of analysing the development of trust in Denmark over the past three...

36 CFR 51.42 - Are there exceptions to this compensable interest prohibition?

Science.gov (United States)

2010-07-01

... compensable interest prohibition? 51.42 Section 51.42 Parks, Forests, and Public Property NATIONAL PARK... exceptions to this compensable interest prohibition? Two exceptions to this compensable interest prohibition... owned in fee simple by a concessioner or owned in fee simple by a concessioner's predecessor before the...

48 CFR 227.7009-3 - Additional clauses-contracts except running royalty contracts.

Science.gov (United States)

2010-10-01

...-contracts except running royalty contracts. 227.7009-3 Section 227.7009-3 Federal Acquisition Regulations...—contracts except running royalty contracts. The following clauses are examples for use in patent release and settlement agreements, and license agreements not providing for payment by the Government of a running...

Catalytic oxidative conversion of cellulosic biomass to formic acid and acetic acid with exceptionally high yields

KAUST Repository

Zhang, Jizhe

2014-09-01

Direct conversion of raw biomass materials to fine chemicals is of great significance from both economic and ecological perspectives. In this paper, we report that a Keggin-type vanadium-substituted phosphomolybdic acid catalyst, namely H4PVMo11O40, is capable of converting various biomass-derived substrates to formic acid and acetic acid with high selectivity in a water medium and oxygen atmosphere. Under optimized reaction conditions, H4PVMo11O40 gave an exceptionally high yield of formic acid (67.8%) from cellulose, far exceeding the values achieved in previous catalytic systems. Our study demonstrates that heteropoly acids are generally effective catalysts for biomass conversion due to their strong acidities, whereas the composition of metal addenda atoms in the catalysts has crucial influence on the reaction pathway and the product selectivity. © 2013 Elsevier B.V.

Exceptional suffering? Enumeration and vernacular accounting in the HIV-positive experience.

Science.gov (United States)

Benton, Adia

2012-01-01

Drawing on 17 months of ethnographic fieldwork in Freetown, Sierra Leone, I highlight the recursive relationship between Sierra Leone as an exemplary setting and HIV as an exceptional disease. Through this relationship, I examine how HIV-positive individuals rely on both enumerative knowledge (seroprevalence rates) and vernacular accounting (NGO narratives of vulnerability) to communicate the uniqueness of their experience as HIV sufferers and to demarcate the boundaries of their status. Various observers' enumerative and vernacular accounts of Sierra Leone's decade-long civil conflict, coupled with global health accounts of HIV as exceptional, reveal the calculus of power through which global health projects operate. The contradictions between the exemplary and the exceptional-and the accompanying tension between quantitative and qualitative facts-are mutually constituted in performances and claims made by HIV-positive individuals themselves.

Confinement in F4 Exceptional Gauge Group Using Domain Structures

Science.gov (United States)

Rafibakhsh, Shahnoosh; Shahlaei, Amir

2017-03-01

We calculate the potential between static quarks in the fundamental representation of the F4 exceptional gauge group using domain structures of the thick center vortex model. As non-trivial center elements are absent, the asymptotic string tension is lost while an intermediate linear potential is observed. SU(2) is a subgroup of F4. Investigating the decomposition of the 26 dimensional representation of F4 to the SU(2) representations, might explain what accounts for the intermediate linear potential, in the exceptional groups with no center element.

The Quake-Catcher Network: Improving Earthquake Strong Motion Observations Through Community Engagement

Science.gov (United States)

Cochran, E. S.; Lawrence, J. F.; Christensen, C. M.; Chung, A. I.; Neighbors, C.; Saltzman, J.

2010-12-01

The Quake-Catcher Network (QCN) involves the community in strong motion data collection by utilizing volunteer computing techniques and low-cost MEMS accelerometers. Volunteer computing provides a mechanism to expand strong-motion seismology with minimal infrastructure costs, while promoting community participation in science. Micro-Electro-Mechanical Systems (MEMS) triaxial accelerometers can be attached to a desktop computer via USB and are internal to many laptops. Preliminary shake table tests show the MEMS accelerometers can record high-quality seismic data with instrument response similar to research-grade strong-motion sensors. QCN began distributing sensors and software to K-12 schools and the general public in April 2008 and has grown to roughly 1500 stations worldwide. We also recently tested whether sensors could be quickly deployed as part of a Rapid Aftershock Mobilization Program (RAMP) following the 2010 M8.8 Maule, Chile earthquake. Volunteers are recruited through media reports, web-based sensor request forms, as well as social networking sites. Using data collected to date, we examine whether a distributed sensing network can provide valuable seismic data for earthquake detection and characterization while promoting community participation in earthquake science. We utilize client-side triggering algorithms to determine when significant ground shaking occurs and this metadata is sent to the main QCN server. On average, trigger metadata are received within 1-10 seconds from the observation of a trigger; the larger data latencies are correlated with greater server-station distances. When triggers are detected, we determine if the triggers correlate to others in the network using spatial and temporal clustering of incoming trigger information. If a minimum number of triggers are detected then a QCN-event is declared and an initial earthquake location and magnitude is estimated. Initial analysis suggests that the estimated locations and magnitudes are

Non-adaptive territory selection by a bird with exceptionally long parental care

Directory of Open Access Journals (Sweden)

Radosław Włodarczyk

2016-03-01

Full Text Available High-quality territories are expected to provide greater fitness return for breeding individuals and, thus, are likely to have higher long-term occupation rate in comparison to low-quality territories. However, if environmental and ecological cues used for territory selection cannot reliably predict true territory quality, a mismatch between preferences and fitness may occur. We suggest that this kind of non-adaptive territory selection is more likely in species with long reproductive cycles, as a long time interval between territory establishment and young fledgling should reduce predictability of conditions during the critical stages of brood care. In this study, we investigated adaptiveness of territory selection in a migratory bird with exceptionally long parental care, the mute swan Cygnus olor, which requires over four months to complete the entire reproductive cycle from egg laying to young fledging. For this purpose, we collected information on the long-term (10–19 years occupancy of 222 swan breeding territories and correlated it with reproductive performance (n = 1,345 breeding attempts and body condition of breeding adults. We found that long-term occupancy positively correlated with the timing of breeding, suggesting that individuals settled earlier in the attractive, frequently occupied territories. By contrast, we found no relationship between territory occupancy and reproductive output (hatching and fledging success or adult body condition. The results indicate that at the time of territory selection swans might not be able to reliably assess territory quality, likely due to: (1 exceptionally long period of parental care, which reduces temporal correlation between the conditions at the time of territory selection and conditions during chick rearing; and (2 unpredictability of human-related activities that had a major impact on reproductive output of swan pairs in our population.

16 CFR 313.15 - Other exceptions to notice and opt out requirements.

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2010-01-01

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76 FR 79679 - Information Collection Being Reviewed by the Federal Communications Commission

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2011-12-22

... with a number of collections in this control number, including line count filings for competitive ETCs...'' exception to the interim cap for competitive ETCs. The interim cap limited the total annual amount of high-cost support competitive ETCs in any state could receive to the amount competitive ETCs in that state...

Believing in "making a difference" to collective efforts : Participative efficacy beliefs as a unique predictor of collective action

NARCIS (Netherlands)

van Zomeren, Martijn; Saguy, Tamar; Schellhaas, Fabian M. H.

When rational actors believe that their group can achieve its goals through collective action (i.e., when they have strong group efficacy beliefs), they should not participate in it because they expect little benefit from their own participation. Paradoxically, however, research shows that

46 CFR 53.01-10 - Service restrictions and exceptions (replaces HG-101).

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2010-10-01

... 46 Shipping 2 2010-10-01 2010-10-01 false Service restrictions and exceptions (replaces HG-101... ENGINEERING HEATING BOILERS General Requirements § 53.01-10 Service restrictions and exceptions (replaces HG... lieu of the requirements in HG-101 of section IV of the ASME Boiler and Pressure Vessel Code...

12 CFR 573.15 - Other exceptions to notice and opt out requirements.

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2010-01-01

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12 CFR 332.15 - Other exceptions to notice and opt out requirements.

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2010-01-01

... insurance to the consumer. (2) A consumer may revoke consent by subsequently exercising the right to opt out... STATEMENTS OF GENERAL POLICY PRIVACY OF CONSUMER FINANCIAL INFORMATION Exceptions § 332.15 Other exceptions... consent or at the direction of the consumer, provided that the consumer has not revoked the consent or...

Plasma production and thermalisation in a strong field

International Nuclear Information System (INIS)

Vinnik, D.V.; Schmidt, S.M.; Prozorkevich, A.V.; Smolyansky, S.A.; Toneev, V.D.; Hecht, M.B.; Roberts, C.D.

2001-01-01

Aspects of the formation and equilibration of a quark-gluon plasma are explored using a quantum kinetic equation, which involves a non-Markovian, Abelian source term for quark and antiquark production and, for the collision term, a relaxation time approximation that defines a time-dependent quasi-equilibrium temperature and collective velocity. The strong Abelian field is determined via the simultaneous solution of Maxwell's equation. A particular feature of this approach is the appearance of plasma oscillations in all thermodynamic observables. Their presence can lead to a sharp increase in the time-integrated dilepton yield, although a rapid expansion of the plasma may eliminate this signal. (orig.)

Retroclival collections associated with abusive head trauma in children

Energy Technology Data Exchange (ETDEWEB)

Silvera, V.M.; Danehy, Amy R.; Carducci, Chiara; Grant, P.E.; Kleinman, Paul K. [Harvard Medical School, Department of Radiology, Boston Children' s Hospital, Boston, MA (United States); Newton, Alice W. [Harvard Medical School, Child Protection Program, Department of Pediatrics, Massachusetts General Hospital, Boston, MA (United States); Stamoulis, Catherine [Harvard Medical School, Department of Radiology, Boston Children' s Hospital, Boston, MA (United States); Harvard Medical School, Department of Neurology, Boston Children' s Hospital, Boston, MA (United States); Wilson, Celeste R. [Harvard Medical School, Division of General Pediatrics, Department of Medicine, Boston Children' s Hospital, Boston, MA (United States)

2014-12-15

Retroclival collections are rare lesions reported almost exclusively in children and strongly associated with trauma. We examine the incidence and imaging characteristics of retroclival collections in young children with abusive head trauma. We conducted a database search to identify children with abusive head trauma ≤3 years of age with brain imaging performed between 2007 and 2013. Clinical data and brain images of 65 children were analyzed. Retroclival collections were identified in 21 of 65 (32%) children. Ten (48%) were subdural, 3 (14%) epidural, 2 (10%) both, and 6 (28%) indeterminate. Only 8 of 21 retroclival collections were identifiable on CT and most were low or intermediate in attenuation. Eighteen of 21 retroclival collections were identifiable on MRI: 3 followed cerebral spinal fluid in signal intensity and 15 were bloody/proteinaceous. Additionally, 2 retroclival collections demonstrated a fluid-fluid level and 2 enhanced in the 5 children who received contrast material. Sagittal T1-weighted images, sagittal fluid-sensitive sequences, and axial FLAIR (fluid-attenuated inversion recovery) images showed the retroclival collections best. Retroclival collections were significantly correlated with supratentorial and posterior fossa subdural hematomas and were not statistically correlated with skull fracture or parenchymal brain injury. Retroclival collections, previously considered rare lesions strongly associated with accidental injury, were commonly identified in this cohort of children with abusive head trauma, suggesting that retroclival collections are an important component of the imaging spectrum in abusive head trauma. Retroclival collections were better demonstrated on MRI than CT, were commonly identified in conjunction with intracranial subdural hematomas, and were not significantly correlated with the severity of brain injury or with skull fractures. (orig.)

Retroclival collections associated with abusive head trauma in children

International Nuclear Information System (INIS)

Silvera, V.M.; Danehy, Amy R.; Carducci, Chiara; Grant, P.E.; Kleinman, Paul K.; Newton, Alice W.; Stamoulis, Catherine; Wilson, Celeste R.

2014-01-01

Retroclival collections are rare lesions reported almost exclusively in children and strongly associated with trauma. We examine the incidence and imaging characteristics of retroclival collections in young children with abusive head trauma. We conducted a database search to identify children with abusive head trauma ≤3 years of age with brain imaging performed between 2007 and 2013. Clinical data and brain images of 65 children were analyzed. Retroclival collections were identified in 21 of 65 (32%) children. Ten (48%) were subdural, 3 (14%) epidural, 2 (10%) both, and 6 (28%) indeterminate. Only 8 of 21 retroclival collections were identifiable on CT and most were low or intermediate in attenuation. Eighteen of 21 retroclival collections were identifiable on MRI: 3 followed cerebral spinal fluid in signal intensity and 15 were bloody/proteinaceous. Additionally, 2 retroclival collections demonstrated a fluid-fluid level and 2 enhanced in the 5 children who received contrast material. Sagittal T1-weighted images, sagittal fluid-sensitive sequences, and axial FLAIR (fluid-attenuated inversion recovery) images showed the retroclival collections best. Retroclival collections were significantly correlated with supratentorial and posterior fossa subdural hematomas and were not statistically correlated with skull fracture or parenchymal brain injury. Retroclival collections, previously considered rare lesions strongly associated with accidental injury, were commonly identified in this cohort of children with abusive head trauma, suggesting that retroclival collections are an important component of the imaging spectrum in abusive head trauma. Retroclival collections were better demonstrated on MRI than CT, were commonly identified in conjunction with intracranial subdural hematomas, and were not significantly correlated with the severity of brain injury or with skull fractures. (orig.)

Retroclival collections associated with abusive head trauma in children.

Science.gov (United States)

Silvera, V Michelle; Danehy, Amy R; Newton, Alice W; Stamoulis, Catherine; Carducci, Chiara; Grant, P Ellen; Wilson, Celeste R; Kleinman, Paul K

2014-12-01

Retroclival collections are rare lesions reported almost exclusively in children and strongly associated with trauma. We examine the incidence and imaging characteristics of retroclival collections in young children with abusive head trauma. We conducted a database search to identify children with abusive head trauma ≤ 3 years of age with brain imaging performed between 2007 and 2013. Clinical data and brain images of 65 children were analyzed. Retroclival collections were identified in 21 of 65 (32%) children. Ten (48%) were subdural, 3 (14%) epidural, 2 (10%) both, and 6 (28%) indeterminate. Only 8 of 21 retroclival collections were identifiable on CT and most were low or intermediate in attenuation. Eighteen of 21 retroclival collections were identifiable on MRI: 3 followed cerebral spinal fluid in signal intensity and 15 were bloody/proteinaceous. Additionally, 2 retroclival collections demonstrated a fluid-fluid level and 2 enhanced in the 5 children who received contrast material. Sagittal T1-weighted images, sagittal fluid-sensitive sequences, and axial FLAIR (fluid-attenuated inversion recovery) images showed the retroclival collections best. Retroclival collections were significantly correlated with supratentorial and posterior fossa subdural hematomas and were not statistically correlated with skull fracture or parenchymal brain injury. Retroclival collections, previously considered rare lesions strongly associated with accidental injury, were commonly identified in this cohort of children with abusive head trauma, suggesting that retroclival collections are an important component of the imaging spectrum in abusive head trauma. Retroclival collections were better demonstrated on MRI than CT, were commonly identified in conjunction with intracranial subdural hematomas, and were not significantly correlated with the severity of brain injury or with skull fractures.

Scalings, spectra, and statistics of strong wave turbulence

International Nuclear Information System (INIS)

Robinson, P.A.

1996-01-01

A two-component model of strongly nonlinear wave turbulence is developed for a broad class of systems in which high-frequency electrostatic waves interact with low-frequency sound-like waves. In this model coherent nonlinear wave packets form and collapse amid a sea of incoherent background waves. It is shown that three classes of turbulence exist, typified by Langmuir, lower-hybrid, and upper-hybrid turbulence. Balance between power input to incoherent waves, and dissipation at the end of collapse determines power-law scalings of turbulent electrostatic energy density, density fluctuations, length and time scales. Knowledge of the evolution of collapsing packets enables probability distributions of the magnitudes of electric fields and density fluctuations to be calculated, yielding power-law dependences. Wavenumber spectra of collapsing waves and associated density fluctuations are also calculated and shown to have power-law forms. Applications to Langmuir, lower-hybrid, and upper-hybrid waves are discussed. In the Langmuir case the results agree with earlier theory and simulations, with one exception, which is consistent only with earlier simulations. In the lower-hybrid and upper-hybrid cases, the results are consistent with the few simulations to date. copyright 1996 American Institute of Physics

16 CFR Appendix G5 to Part 305 - Boilers-Gas (Except Steam)

Science.gov (United States)

2010-01-01

... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Boilers-Gas (Except Steam) G5 Appendix G5 to Part 305 Commercial Practices FEDERAL TRADE COMMISSION REGULATIONS UNDER SPECIFIC ACTS OF CONGRESS RULE... Appendix G5 to Part 305—Boilers—Gas (Except Steam) Manufacturer's rated heating capacities (Btu's/hr...

2000 GUIDELINES FOR ADVANCEMENT AND EXCEPTIONAL PERFORMANCE AWARDS

CERN Document Server

2000-01-01

1. GeneralAs indicated in last year's guidelines, studies on CERN's career structures are continuing in the context of the work of the Tripartite Forum on Employment Conditions (TREF) and should be completed during this year's 5-Yearly Remuneration Review for the application of any changes in 2001. In the meantime, the 2000 annual advancement exercise will be conducted on similar basic lines to those of previous years, i.e. within the procedures of the Administrative Circular N° 26 (Rev. 2), thus promoting the aspect of individual merit in advancement.The present guidelines continue to aim at the best possible degree of flexibility of application for each division within the present Staff Rules and Regulations in order to take full account of both the different levels of individual performance and also the different staff profiles.All advancement must be justified on the grounds of correctly judged merit: exceptional advancement (i.e. second step or entering the exceptional advancement grade) for par...

An analysis of mobile whole blood collection labor efficiency.

Science.gov (United States)

Rose, William N; Dayton, Paula J; Raife, Thomas J

2011-07-01

Labor efficiency is desirable in mobile blood collection. There are few published data on labor efficiency. The variability in the labor efficiency of mobile whole blood collections was analyzed. We determined to improve our labor efficiency using lean manufacturing principles. Workflow changes in mobile collections were implemented with the goal of minimizing labor expenditures. To measure success, data on labor efficiency measured by units/hour/full-time equivalent (FTE) were collected. The labor efficiency in a 6-month period before the implementation of changes, and in months 1 to 6 and 7 to 12 after implementation was analyzed and compared. Labor efficiency in the 6-month period preceding implementation was 1.06 ± 0.4 units collected/hour/FTE. In months 1 to 6, labor efficiency declined slightly to 0.92 ± 0.4 units collected/hour/FTE (p = 0.016 vs. preimplementation). In months 7 to 12, the mean labor efficiency returned to preimplementation levels of 1.09 ±0.4 units collected/hour/FTE. Regression analysis correlating labor efficiency with total units collected per drive revealed a strong correlation (R(2) = 0.48 for the aggregate data from all three periods), indicating that nearly half of labor efficiency was associated with drive size. The lean-based changes in workflow were subjectively favored by employees and donors. The labor efficiency of our mobile whole blood drives is strongly influenced by size. Larger drives are more efficient, with diminishing returns above 40 units collected. Lean-based workflow changes were positively received by employees and donors. © 2011 American Association of Blood Banks.

75 FR 57038 - Proposed Collection; Comment Request; Recruitment and Screening for the Insight Into...

Science.gov (United States)

2010-09-17

... stage recruitment process consisting of a telephone interview and a physical exam. The Stage One... Request; Recruitment and Screening for the Insight Into Determination of Exceptional Aging and Longevity... approval. Proposed Collection: Title: Recruitment and Screening for the Insight into Determination of...

Direct Observation of Strong Ion Coupling in Laser-Driven Shock-Compressed Targets

International Nuclear Information System (INIS)

Ravasio, A.; Benuzzi-Mounaix, A.; Loupias, B.; Ozaki, N.; Rabec le Gloahec, M.; Koenig, M.; Gregori, G.; Daligault, J.; Delserieys, A.; Riley, D.; Faenov, A. Ya.; Pikuz, T. A.

2007-01-01

In this Letter we report on a near collective x-ray scattering experiment on shock-compressed targets. A highly coupled Al plasma was generated and probed by spectrally resolving an x-ray source forward scattered by the sample. A significant reduction in the intensity of the elastic scatter was observed, which we attribute to the formation of an incipient long-range order. This speculation is confirmed by x-ray scattering calculations accounting for both electron degeneracy and strong coupling effects. Measurements from rear side visible diagnostics are consistent with the plasma parameters inferred from x-ray scattering data. These results give the experimental evidence of the strongly coupled ionic dynamics in dense plasmas

Guidebook of radioactive wastes removal. From collection to storage

International Nuclear Information System (INIS)

2014-06-01

This document, more particularly devoted to radioactive waste producers (except electronuclear industry), defines the technical specifications relative to the taking over of their wastes by the ANDRA, the French national agency of radioactive wastes. Content: general conditions (producers liability and obligations), instructions manual of the taking over demand, non-electronuclear wastes collecting, wastes conditioning specifications, specifications for each category of waste, the lightning arresters case, specifications for particular removals with prior consent

Strong Langmuir turbulence

International Nuclear Information System (INIS)

Goldman, M.V.

1984-01-01

After a brief discussion of beam-excited Langmuir turbulence in the solar wind, we explain the criteria for wave-particle, three-wave and strong turbulence interactions. We then present the results of a numerical integration of the Zakharov equations, which describe the strong turbulence saturation of a weak (low-density) high energy, bump-on-tail beam instability. (author)

Strong Motion Earthquake Data Values of Digitized Strong-Motion Accelerograms, 1933-1994

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The Strong Motion Earthquake Data Values of Digitized Strong-Motion Accelerograms is a database of over 15,000 digitized and processed accelerograph records from...

Silver Nanoshell Plasmonically Controlled Emission of Semiconductor Quantum Dots in the Strong Coupling Regime.

Science.gov (United States)

Zhou, Ning; Yuan, Meng; Gao, Yuhan; Li, Dongsheng; Yang, Deren

2016-04-26

Strong coupling between semiconductor excitons and localized surface plasmons (LSPs) giving rise to hybridized plexciton states in which energy is coherently and reversibly exchanged between the components is vital, especially in the area of quantum information processing from fundamental and practical points of view. Here, in photoluminescence spectra, rather than from common extinction or reflection measurements, we report on the direct observation of Rabi splitting of approximately 160 meV as an indication of strong coupling between excited states of CdSe/ZnS quantum dots (QDs) and LSP modes of silver nanoshells under nonresonant nanosecond pulsed laser excitation at room temperature. The strong coupling manifests itself as an anticrossing-like behavior of the two newly formed polaritons when tuning the silver nanoshell plasmon energies across the exciton line of the QDs. Further analysis substantiates the essentiality of high pump energy and collective strong coupling of many QDs with the radiative dipole mode of the metallic nanoparticles for the realization of strong coupling. Our finding opens up interesting directions for the investigation of strong coupling between LSPs and excitons from the perspective of radiative recombination under easily accessible experimental conditions.

12 CFR 716.15 - Other exceptions to notice and opt out requirements.

Science.gov (United States)

2010-01-01

... insurance to the consumer. (2) A consumer may revoke consent by subsequently exercising the right to opt out... AFFECTING CREDIT UNIONS PRIVACY OF CONSUMER FINANCIAL INFORMATION Exceptions § 716.15 Other exceptions to... notice to consumers in § 716.4(a)(2), the opt out in §§ 716.7 and 716.10 and service providers and joint...

Technology and Media for Exceptional Learners: Looking Ahead

Science.gov (United States)

Lance, Wayne D.

1977-01-01

The author points out the need for greater application of technology in educational programs for exceptional children and suggests ways in which new developments (such as computer applications, video, sensory compensation devices, and communication satellite technology) can be used to implement some of the requirements of Public Law 94-142. (IM)

Use of Synergistic Interactions to Fabricate Strong, Tough, and Conductive Artificial Nacre Based on Graphene Oxide and Chitosan.

Science.gov (United States)

Wan, Sijie; Peng, Jingsong; Li, Yuchen; Hu, Han; Jiang, Lei; Cheng, Qunfeng

2015-10-27

Graphene is the strongest and stiffest material, leading to the development of promising applications in many fields. However, the assembly of graphene nanosheets into macrosized nanocomposites for practical applications remains a challenge. Nacre in its natural form sets the "gold standard" for toughness and strength, which serves as a guide to the assembly of graphene nanosheets into high-performance nanocomposites. Here we show the strong, tough, conductive artificial nacre based on graphene oxide through synergistic interactions of hydrogen and covalent bonding. Tensile strength and toughness was 4 and 10 times higher, respectively, than that of natural nacre. The exceptional integrated strong and tough artificial nacre has promising applications in aerospace, artificial muscle, and tissue engineering, especially for flexible supercapacitor electrodes due to its high electrical conductivity. The use of synergistic interactions is a strategy for the development of high-performance nanocomposites.

Radiochemical analyses of game birds collected from the Hanford environs, 1971--1975

International Nuclear Information System (INIS)

Fix, J.J.; Blumer, P.J.

1977-07-01

Game birds were collected routinely on the Hanford Site as a way of monitoring radionuclide concentrations potentially attributable to Hanford operations. In general, radionuclide concentrations attributable to Hanford operations were only slightly greater than or indistinguishable from expected levels attributed to worldwide fallout. An exception was that 137 Cs concentrations, primarily in ducks and coots, were higher than levels attributable to fallout. Only two observations, a 90 Sr concentration of 0.08 pCi/g and a 137 Cs concentration of 5.6 pCi/g in pheasants were attributed to Hanford operations. Only 65 Zn activity observed in geese during 1971 and 1972 was attributed to Hanford operations. Assuming a hunter ingested 5 kilograms of goose meat containing the maximum observed 65 Zn, 1.3 pCi/g, and 137 Cs, 1.0 pCi/g concentrations, a 50-year internal dose commitment to the total body of 0.05 mrem from 65 Zn and 0.3 mrem from 137 Cs would be incurred. The duck data were separated into two components for analysis: ducks collected from the Columbia River, and ducks collected from onsite ponds. With the exception of 65 Zn, the maximum observed concentrations of 60 Co, 90 Sr, and 137 Cs were for ducks collected from onsite ponds. The maximum 65 Zn concentrations were for ducks collected during 1971 from near the Columbia River. Livers from ducks collected from certain onsite ponds were analyzed for U and Pu activity. The majority of the analyses were positive. Only 11 coots were collected from 1971 through 1975, all from onsite ponds; but because coots are less migratory than ducks and may therefore take in more activity from Hanford process ponds, the available data were analyzed. Generally, a much larger fraction of the coots analyzed showed positive analysis for 90 Sr and 137 Cs activity as compared to ducks collected from along the Columbia River

Sustaining Collective Action in Urbanizing China

DEFF Research Database (Denmark)

Kuang, Xianwen; Goebel, Christian

2013-01-01

The recent years have seen a proliferation of scholarship on protests and other forms of collective action in China. Important insights have been gained into how conflicts between social groups and local governments begin, which strategies and instruments protesters apply, and under which...... challenges of sustaining collective action in China: the continuing existence of substantial grievances, the re-activation of strong social ties, the presence of unifying frames and an adaptive protest leadership. The comparison shows that especially the last factor is crucial: while the two villages were...... similar in all other respects, leadership in Village B was far more adaptive in Village A, which goes a long way towards explaining why collective action could be sustained twice as long in Village B....

The Dilemma of Democracy: Collusion and the State of Exception

Directory of Open Access Journals (Sweden)

Mark McGovern

2011-12-01

Full Text Available In what sense might the authoritarian practices and suspension of legal norms as means to combat the supposed threat of “terrorism,” within and by contemporary western democratic states, be understood as a problem of and not for democracy? That question lies at the heart of this article. It will be explored through the theoretical frame offered in the work of Giorgio Agamben on the state of exception and the example of British state collusion in non-state violence in the North of Ireland. The North of Ireland provides a particularly illuminating case study to explore how the state of exception—the suspension of law and of legal norms and the exercise of arbitrary decision—has increasingly become a paradigm of contemporary governance. In so doing it brings into question not only the traditional conceptualization of the “democratic dilemma” of liberal democratic states “confronting terrorism” but also challenge dominant paradigms of transitional justice that generally fail to problematize the liberal democratic order. After outlining Agamben’s understanding of the state of exception the article will chart the development of “exceptional measures” and the creation of a permanent state of emergency in the North, before critically exploring the role of collusion as an aspect of counter-insurgency during the recent conflict. The paper will argue that the normalization of exceptional measures, combined with the need to delimit the explicitness of constitutional provision for the same, provided a context for the emergence of collusion as a paradigm case for the increasing replication of colonial practices into the core activity of the contemporary democratic state.

Remarks on the microscopic derivation of the collective model

International Nuclear Information System (INIS)

Toyoda, T.; Wildermuth, K.

1984-01-01

The rotational part of the phenomenological collective model of Bohr and Mottelson and others is derived microscopically, starting with the Schrodinger equation written in projection form and introducing a new set of 'relative Euler angles'. In order to derive the local Schrodinger equation of the collective model, it is assumed that the intrinsic wave functions give strong peaking properties to the overlapping kernels

Iterative solutions of nonlinear equations with strongly accretive or strongly pseudocontractive maps

International Nuclear Information System (INIS)

Chidume, C.E.

1994-03-01

Let E be a real q-uniformly smooth Banach space. Suppose T is a strongly pseudo-contractive map with open domain D(T) in E. Suppose further that T has a fixed point in D(T). Under various continuity assumptions on T it is proved that each of the Mann iteration process or the Ishikawa iteration method converges strongly to the unique fixed point of T. Related results deal with iterative solutions of nonlinear operator equations involving strongly accretive maps. Explicit error estimates are also provided. (author). 38 refs

Brazil's Exception to the World-Class University Movement

Science.gov (United States)

Alperin, Juan Pablo

2013-01-01

The continued importance of university rankings has only served to fuel the growth of the "world-class" university movement. There is a growing impression that, in a globalised and interconnected world, no country can do without a world-class university. No country, that is, except Brazil. While Brazil has the resources necessary to…

Control of exceptional points in photonic crystal slabs

DEFF Research Database (Denmark)

Kaminski, Piotr Marek; Taghizadeh, Alireza; Breinbjerg, Olav

2017-01-01

Various ways of controlling the extent of the ring of exceptional points in photonic crystal slabs are investigated. The extent of the ring in photonic crystal slabs is found to vary with the thickness of the slab. This enables recovery of Dirac cones in open, non-Hermitian systems, such as a pho...

26 CFR 1.461-5 - Recurring item exception.

Science.gov (United States)

2010-04-01

... general. Except as otherwise provided in paragraph (c) of this section, a taxpayer using an accrual method... method of accounting for one or more types of recurring items incurred by the taxpayer. In the case of... basis in the future. (4) Materiality requirement. For purposes of this paragraph (b): (i) In determining...

Differential diagnosis of perirenal cyctic or non-cyctic fluid collections

International Nuclear Information System (INIS)

Stoker, J.; Lameris, J.S.

1989-01-01

A perirenal fluid collection, which is fluid located between the renal capcule and renal fasciae, is not a frequent diagnostic finding. When seen, either cystic, pseuod-cystic, several diagnostic possibilities must be kept in mind. The differential diagnosis of perirenal fluid, except for adrenal fluid, and the perirenal anatomy are described on the basis of three illustrative cases. Emphasis is on the radiological aspects. (Author). 15 refs.; 7 figs.; 1 tab

Locust Collective Motion and Its Modeling.

Directory of Open Access Journals (Sweden)

Gil Ariel

2015-12-01

Full Text Available Over the past decade, technological advances in experimental and animal tracking techniques have motivated a renewed theoretical interest in animal collective motion and, in particular, locust swarming. This review offers a comprehensive biological background followed by comparative analysis of recent models of locust collective motion, in particular locust marching, their settings, and underlying assumptions. We describe a wide range of recent modeling and simulation approaches, from discrete agent-based models of self-propelled particles to continuous models of integro-differential equations, aimed at describing and analyzing the fascinating phenomenon of locust collective motion. These modeling efforts have a dual role: The first views locusts as a quintessential example of animal collective motion. As such, they aim at abstraction and coarse-graining, often utilizing the tools of statistical physics. The second, which originates from a more biological perspective, views locust swarming as a scientific problem of its own exceptional merit. The main goal should, thus, be the analysis and prediction of natural swarm dynamics. We discuss the properties of swarm dynamics using the tools of statistical physics, as well as the implications for laboratory experiments and natural swarms. Finally, we stress the importance of a combined-interdisciplinary, biological-theoretical effort in successfully confronting the challenges that locusts pose at both the theoretical and practical levels.

46 CFR 111.103-1 - Power ventilation systems except machinery space ventilation systems.

Science.gov (United States)

2010-10-01

... 46 Shipping 4 2010-10-01 2010-10-01 false Power ventilation systems except machinery space ventilation systems. 111.103-1 Section 111.103-1 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Power ventilation systems except machinery space ventilation systems. Each power ventilation system must...

Strong-motion observations of the M 7.8 Gorkha, Nepal, earthquake sequence and development of the N-shake strong-motion network

Science.gov (United States)

Dixit, Amod; Ringler, Adam; Sumy, Danielle F.; Cochran, Elizabeth S.; Hough, Susan E.; Martin, Stacey; Gibbons, Steven; Luetgert, James H.; Galetzka, John; Shrestha, Surya; Rajaure, Sudhir; McNamara, Daniel E.

2015-01-01

We present and describe strong-motion data observations from the 2015 M 7.8 Gorkha, Nepal, earthquake sequence collected using existing and new Quake-Catcher Network (QCN) and U.S. Geological Survey NetQuakes sensors located in the Kathmandu Valley. A comparison of QCN data with waveforms recorded by a conventional strong-motion (NetQuakes) instrument validates the QCN data. We present preliminary analysis of spectral accelerations, and peak ground acceleration and velocity for earthquakes up to M 7.3 from the QCN stations, as well as preliminary analysis of the mainshock recording from the NetQuakes station. We show that mainshock peak accelerations were lower than expected and conclude the Kathmandu Valley experienced a pervasively nonlinear response during the mainshock. Phase picks from the QCN and NetQuakes data are also used to improve aftershock locations. This study confirms the utility of QCN instruments to contribute to ground-motion investigations and aftershock response in regions where conventional instrumentation and open-access seismic data are limited. Initial pilot installations of QCN instruments in 2014 are now being expanded to create the Nepal–Shaking Hazard Assessment for Kathmandu and its Environment (N-SHAKE) network.

Pair of Exceptional Points in a Microdisk Cavity under an Extremely Weak Deformation

Science.gov (United States)

Yi, Chang-Hwan; Kullig, Julius; Wiersig, Jan

2018-03-01

One of the interesting features of open quantum and wave systems is the non-Hermitian degeneracy called an exceptional point, where not only energy levels but also the corresponding eigenstates coalesce. We demonstrate that such a degeneracy can appear in optical microdisk cavities by deforming the boundary extremely weakly. This surprising finding is explained by a semiclassical theory of dynamical tunneling. It is shown that the exceptional points come in nearly degenerated pairs, originating from the different symmetry classes of modes. A spatially local chirality of modes at the exceptional point is related to vortex structures of the Poynting vector.

Exceptional composite dark matter

Energy Technology Data Exchange (ETDEWEB)

Ballesteros, Guillermo [Universite Paris Saclay, CEA, CNRS, Institut de Physique Theorique, Gif-sur-Yvette (France); Carmona, Adrian [CERN, Theoretical Physics Department, Geneva (Switzerland); Chala, Mikael [Universitat de Valencia y IFIC, Universitat de Valencia-CSIC, Departament de Fisica Teorica, Burjassot, Valencia (Spain)

2017-07-15

We study the dark matter phenomenology of non-minimal composite Higgs models with SO(7) broken to the exceptional group G{sub 2}. In addition to the Higgs, three pseudo-Nambu-Goldstone bosons arise, one of which is electrically neutral. A parity symmetry is enough to ensure this resonance is stable. In fact, if the breaking of the Goldstone symmetry is driven by the fermion sector, this Z{sub 2} symmetry is automatically unbroken in the electroweak phase. In this case, the relic density, as well as the expected indirect, direct and collider signals are then uniquely determined by the value of the compositeness scale, f. Current experimental bounds allow one to account for a large fraction of the dark matter of the Universe if the dark matter particle is part of an electroweak triplet. The totality of the relic abundance can be accommodated if instead this particle is a composite singlet. In both cases, the scale f and the dark matter mass are of the order of a few TeV. (orig.)

Consistent Kaluza-Klein truncations via exceptional field theory

Energy Technology Data Exchange (ETDEWEB)

Hohm, Olaf [Center for Theoretical Physics, Massachusetts Institute of Technology,Cambridge, MA 02139 (United States); Samtleben, Henning [Université de Lyon, Laboratoire de Physique, UMR 5672, CNRS,École Normale Supérieure de Lyon, 46, allée d’Italie, F-69364 Lyon cedex 07 (France)

2015-01-26

We present the generalized Scherk-Schwarz reduction ansatz for the full supersymmetric exceptional field theory in terms of group valued twist matrices subject to consistency equations. With this ansatz the field equations precisely reduce to those of lower-dimensional gauged supergravity parametrized by an embedding tensor. We explicitly construct a family of twist matrices as solutions of the consistency equations. They induce gauged supergravities with gauge groups SO(p,q) and CSO(p,q,r). Geometrically, they describe compactifications on internal spaces given by spheres and (warped) hyperboloides H{sup p,q}, thus extending the applicability of generalized Scherk-Schwarz reductions beyond homogeneous spaces. Together with the dictionary that relates exceptional field theory to D=11 and IIB supergravity, respectively, the construction defines an entire new family of consistent truncations of the original theories. These include not only compactifications on spheres of different dimensions (such as AdS{sub 5}×S{sup 5}), but also various hyperboloid compactifications giving rise to a higher-dimensional embedding of supergravities with non-compact and non-semisimple gauge groups.

Looking for exceptions on knowledge rules induced from HIV cleavage data set

Directory of Open Access Journals (Sweden)

Ronaldo Cristiano Prati

2004-01-01

Full Text Available The aim of data mining is to find useful knowledge inout of databases. In order to extract such knowledge, several methods can be used, among them machine learning (ML algorithms. In this work we focus on ML algorithms that express the extracted knowledge in a symbolic form, such as rules. This representation may allow us to ''explain'' the data. Rule learning algorithms are mainly designed to induce classification rules that can predict new cases with high accuracy. However, these sorts of rules generally express common sense knowledge, resulting in many interesting and useful rules not being discovered. Furthermore, the domain independent biases, especially those related to the language used to express the induced knowledge, could induce rules that are difficult to understand. Exceptions might be used in order to overcome these drawbacks. Exceptions are defined as rules that contradict common believebeliefs. This kind of rules can play an important role in the process of understanding the underlying data as well as in making critical decisions. By contradicting the user's common beliefves, exceptions are bound to be interesting. This work proposes a method to find exceptions. In order to illustrate the potential of our approach, we apply the method in a real world data set to discover rules and exceptions in the HIV virus protein cleavage process. A good understanding of the process that generates this data plays an important role oin the research of cleavage inhibitors. We consider believe that the proposed approach may help the domain expert to further understand this process.

Strong intrinsic motivation

OpenAIRE

Dessi, Roberta; Rustichini, Aldo

2015-01-01

A large literature in psychology, and more recently in economics, has argued that monetary rewards can reduce intrinsic motivation. We investigate whether the negative impact persists when intrinsic motivation is strong, and test this hypothesis experimentally focusing on the motivation to undertake interesting and challenging tasks, informative about individual ability. We find that this type of task can generate strong intrinsic motivation, that is impervious to the effect of monetary incen...

22 CFR 210.515 - Are there any provisions for exceptions to those actions?

Science.gov (United States)

2010-04-01

... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Are there any provisions for exceptions to those actions? 210.515 Section 210.515 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT... or designee determines that such a waiver would be in the public interest. This exception authority...

Investigating the Factors of Resiliency among Exceptional Youth Living in Rural Underserved Communities

Science.gov (United States)

Curtin, Kevin A.; Schweitzer, Ashley; Tuxbury, Kristen; D'Aoust, Janelle A.

2016-01-01

Resilience is an important social justice concept that has important implications for educators working with exceptional youth in rural underserved communities who may suffer from the consequences associated with economic hardships. This multi-school qualitative study examined resilience among exceptional youth living in rural poverty through the…

Real-time exception handling—Use cases and response requirements

International Nuclear Information System (INIS)

Raupp, G.; Mertens, V.; Neu, G.; Treutterer, W.; Zasche, D.; Zehetbauer, Th.

2012-01-01

Adequate real-time event detection and exception handling for machine protection and plasma optimization are important for safe and efficient operation of fusion devices. Within the scope of a layered protection hierarchy, the exception handling goals of the real-time control system are to optimize control performance, switch to alternate investigations, terminate the discharge in a controlled way, or alarm the interlock system when control is lost. Analysis of these goals shows that they can be implemented with two methods: the modification of the reference values to respond to degradation of sensors, actuators or controllers, and the replacement of schedules to perform other investigations, which includes controlled termination and interlock alarm cases. In support of these methods the sensor and evaluated data quality and the time-varying actuator characteristics and capacity must be communicated to users of those information to avoid failure propagation.

Constraints on cosmological models from strong gravitational lensing systems

International Nuclear Information System (INIS)

Cao, Shuo; Pan, Yu; Zhu, Zong-Hong; Biesiada, Marek; Godlowski, Wlodzimierz

2012-01-01

Strong lensing has developed into an important astrophysical tool for probing both cosmology and galaxies (their structure, formation, and evolution). Using the gravitational lensing theory and cluster mass distribution model, we try to collect a relatively complete observational data concerning the Hubble constant independent ratio between two angular diameter distances D ds /D s from various large systematic gravitational lens surveys and lensing by galaxy clusters combined with X-ray observations, and check the possibility to use it in the future as complementary to other cosmological probes. On one hand, strongly gravitationally lensed quasar-galaxy systems create such a new opportunity by combining stellar kinematics (central velocity dispersion measurements) with lensing geometry (Einstein radius determination from position of images). We apply such a method to a combined gravitational lens data set including 70 data points from Sloan Lens ACS (SLACS) and Lens Structure and Dynamics survey (LSD). On the other hand, a new sample of 10 lensing galaxy clusters with redshifts ranging from 0.1 to 0.6 carefully selected from strong gravitational lensing systems with both X-ray satellite observations and optical giant luminous arcs, is also used to constrain three dark energy models (ΛCDM, constant w and CPL) under a flat universe assumption. For the full sample (n = 80) and the restricted sample (n = 46) including 36 two-image lenses and 10 strong lensing arcs, we obtain relatively good fitting values of basic cosmological parameters, which generally agree with the results already known in the literature. This results encourages further development of this method and its use on larger samples obtained in the future

Constraints on cosmological models from strong gravitational lensing systems

Energy Technology Data Exchange (ETDEWEB)

Cao, Shuo; Pan, Yu; Zhu, Zong-Hong [Department of Astronomy, Beijing Normal University, Beijing 100875 (China); Biesiada, Marek [Department of Astrophysics and Cosmology, Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice (Poland); Godlowski, Wlodzimierz, E-mail: baodingcaoshuo@163.com, E-mail: panyu@cqupt.edu.cn, E-mail: biesiada@us.edu.pl, E-mail: godlowski@uni.opole.pl, E-mail: zhuzh@bnu.edu.cn [Institute of Physics, Opole University, Oleska 48, 45-052 Opole (Poland)

2012-03-01

Strong lensing has developed into an important astrophysical tool for probing both cosmology and galaxies (their structure, formation, and evolution). Using the gravitational lensing theory and cluster mass distribution model, we try to collect a relatively complete observational data concerning the Hubble constant independent ratio between two angular diameter distances D{sub ds}/D{sub s} from various large systematic gravitational lens surveys and lensing by galaxy clusters combined with X-ray observations, and check the possibility to use it in the future as complementary to other cosmological probes. On one hand, strongly gravitationally lensed quasar-galaxy systems create such a new opportunity by combining stellar kinematics (central velocity dispersion measurements) with lensing geometry (Einstein radius determination from position of images). We apply such a method to a combined gravitational lens data set including 70 data points from Sloan Lens ACS (SLACS) and Lens Structure and Dynamics survey (LSD). On the other hand, a new sample of 10 lensing galaxy clusters with redshifts ranging from 0.1 to 0.6 carefully selected from strong gravitational lensing systems with both X-ray satellite observations and optical giant luminous arcs, is also used to constrain three dark energy models (ΛCDM, constant w and CPL) under a flat universe assumption. For the full sample (n = 80) and the restricted sample (n = 46) including 36 two-image lenses and 10 strong lensing arcs, we obtain relatively good fitting values of basic cosmological parameters, which generally agree with the results already known in the literature. This results encourages further development of this method and its use on larger samples obtained in the future.

Cooperative fluorescence from a strongly driven dilute cloud of atoms

DEFF Research Database (Denmark)

Ott, Johan Raunkjær; Wubs, Martijn; Lodahl, Peter

2013-01-01

We investigate cooperative fluorescence in a dilute cloud of strongly driven two-level emitters. Starting from the Heisenberg equations of motion, we compute the first-order scattering corrections to the saturation of the excited-state population and to the resonance-fluorescence spectrum, which...... both require going beyond the state-of-the-art linear-optics approach to describe collective phenomena. A dipole blockade is observed due to long-range dipole-dipole coupling that vanishes at stronger driving fields. Furthermore, we compute the inelastic component of the light scattered by a cloud...

Minimal unitary realizations of exceptional U-duality groups and their subgroups as quasiconformal groups

International Nuclear Information System (INIS)

Gunaydin, Murat; Pavlyk, Oleksandr

2005-01-01

We study the minimal unitary representations of noncompact exceptional groups that arise as U-duality groups in extended supergravity theories. First we give the unitary realizations of the exceptional group E 8(-24) in SU*(8) as well as SU(6,2) covariant bases. E 8(-24) has E 7 x SU(2) as its maximal compact subgroup and is the U-duality group of the exceptional supergravity theory in d=3. For the corresponding U-duality group E 8(8) of the maximal supergravity theory the minimal realization was given. The minimal unitary realizations of all the lower rank noncompact exceptional groups can be obtained by truncation of those of E 8(-24) and E 8(8) . By further truncation one can obtain the minimal unitary realizations of all the groups of the 'Magic Triangle'. We give explicitly the minimal unitary realizations of the exceptional subgroups of E 8(-24) as well as other physically interesting subgroups. These minimal unitary realizations correspond, in general, to the quantization of their geometric actions as quasi-conformal groups. (author)

The Acceptance of Exceptionality: A Three Dimensional Model.

Science.gov (United States)

Martin, Larry L.; Nivens, Maryruth K.

A model extrapolates from E. Kubler-Ross' conception of the stages of grief to apply to parent and family reactions when an exceptionality is identified. A chart lists possible parent feelings and reactions, possible school reactions to the parent in grief, and the child's reactions during each of five stages: denial, rage and anger, bargaining,…

26 CFR 1.1245-4 - Exceptions and limitations.

Science.gov (United States)

2010-04-01

... of the property in the hands of the son is $110,000. (b) Exception for transfers at death—(1) General... property which, upon Smith's death, is inherited by his son. Since the property is described in section..., and after B's death to distribute the property to C. If the basis of the property to the fiduciary and...

Light-matter interaction in the strong coupling regime: configurations, conditions, and applications.

Science.gov (United States)

Dovzhenko, D S; Ryabchuk, S V; Rakovich, Yu P; Nabiev, I R

2018-02-22

Resonance interaction between a molecular transition and a confined electromagnetic field can reach the coupling regime where coherent exchange of energy between light and matter becomes reversible. In this case, two new hybrid states separated in energy are formed instead of independent eigenstates, which is known as Rabi splitting. This modification of the energy spectra of the system offers new possibilities for controlled impact on various fundamental properties of coupled matter (such as the rate of chemical reactions and the conductivity of organic semiconductors). To date, the strong coupling regime has been demonstrated in many configurations under different ambient conditions. However, there is still no comprehensive approach to determining parameters for achieving the strong coupling regime for a wide range of practical applications. In this review, a detailed analysis of various systems and corresponding conditions for reaching strong coupling is carried out and their advantages and disadvantages, as well as the prospects for application, are considered. The review also summarizes recent experiments in which the strong coupling regime has led to new interesting results, such as the possibility of collective strong coupling between X-rays and matter excitation in a periodic array of Fe isotopes, which extends the applications of quantum optics; a strong amplification of the Raman scattering signal from a coupled system, which can be used in surface-enhanced and tip-enhanced Raman spectroscopy; and more efficient second-harmonic generation from the low polaritonic state, which is promising for nonlinear optics. The results reviewed demonstrate great potential for further practical applications of strong coupling in the fields of photonics (low-threshold lasers), quantum communications (switches), and biophysics (molecular fingerprinting).

Non-Trade Concerns in Interpreting General Exception Clauses of ...

African Journals Online (AJOL)

eliasn

Primarily, the objective of the measure must fall within the scope of any of the ... Balancing the Toothless Tiger and the Undermining Mole”, Journal of ..... listed in the exception clauses, there is a significant risk for abuse if they are left.

An exceptional collision tumor: gastric calcified stromal tumor and ...

African Journals Online (AJOL)

The authors report an exceptional case of collision tumor comprised of a gastric calcified stromal tumor and a pancreatic adenocarcinoma. The pancreatic tumor was detected fortuitously on the histological exam of resection specimen. Key words: Collision tumor, stromal tumor, adenocarcinoma ...

Busy going crazy : collection Sylvio Perlstein

OpenAIRE

Castant, Alexandre

2012-01-01

Cette collection met en exergue le parcours, intime et autobiographique, du collectionneur avec les œuvres et ses choix, ses rencontres, son inventivité, sa liberté. Elle se laisse admirer aussi : les pièces qu’elle réunit sont d’exception. Il faudrait en effet inventorier les œuvres historiques ici rassemblées, comme autant de rencontres intuitives avec le siècle dernier. Le phénomène économique en deviendrait sinon annexe —il ne se laisse pas complètement oublier, loin s’en faut—, mais il s...

Testing strong interaction theories

International Nuclear Information System (INIS)

Ellis, J.

1979-01-01

The author discusses possible tests of the current theories of the strong interaction, in particular, quantum chromodynamics. High energy e + e - interactions should provide an excellent means of studying the strong force. (W.D.L.)

Collective Identity Formation in Hybrid Organizations

DEFF Research Database (Denmark)

Boulongne, Romain; Boxenbaum, Eva

The present article examines the process of collective identity formation in the context of hybrid organizing. Empirically, we investigate hybrid organizing in a collaborative structure at the interface of two heterogeneous organizations in the domain of new renewable energies. We draw...... on the literature on knowledge sharing across organizational boundaries, particularly the notions of transfer, translation and transformation, to examine in real time how knowledge sharing in a hybrid setting contributes (or not) to the emergence of a new collective identity at the interface of two heterogeneous...... organizations. Our findings point to two factors that limit knowledge sharing and hence to new collective identity formation in a hybrid space: 1) ambiguous or multiple organizational roles and 2) strong identities of the collaborating organizations. These findings contribute to illuminating the initial...

Nonlinear effects in collective absorption

International Nuclear Information System (INIS)

Uenoyama, Takeshi; Mima, Kunioki; Watanabe, Tsuguhiro.

1981-01-01

The collective absorption of high intensity laser radiation is analyzed numerically. Density profile modification due to the ponderomotive force associating laser radiation and the excited electron plasma waves is self-consistently taken into account, and the intensity dependences of the absorption efficiency are obtained. In the high intensity regime, the absorption efficiency is found to be strongly enhanced in the plasma without flow, but reduced with supersonic flow. (author)

An Exceptional Adenocarcinoma in a Girl

Directory of Open Access Journals (Sweden)

Bangaly Traore

2018-01-01

Full Text Available Anal adenocarcinoma is very rare and usually occurs in the elderly. We present a case of a 12-year-old girl with an anal margin painful tumor infiltrating the lower rectum, with perineal and vulvar permeation nodules and bilateral fixed inguinal and iliac lymph nodes. Histology showed anal adenocarcinoma with mucosecreting component and independent cells. She had no extra pelvic metastasis on CT scan. She underwent a colostomy and palliative care. This exceptional case challenges us on the diversity of forms of anal cancers that require a multidisciplinary approach. The precarious social context and the age of onset make it difficult to manage this rare cancer.

Exceptional Drought and Unconventional Energy Production

Directory of Open Access Journals (Sweden)

Reid B. Stevens

2018-04-01

Full Text Available The hydraulic fracturing boom in Texas required massive water flows. Beginning in the summer of 2011, water became scarce as a prolonged heat wave and subsequent severe drought spread across the state. Oil and gas producers working in drought areas needed to purchase expensive local water or transport water from a non-drought county far from the drill site. In response to decreased water availability in drought areas, these producers completed fewer wells and completed wells that used less water. This decrease in well-level water use had a measurable effect on the amount of oil and gas produced by wells completed during exceptional conditions.

Alpha decay as a strong collective phenomenon

International Nuclear Information System (INIS)

Bulgac, A.; Carstoiu, F.; Dumitrescu, O.; Holan, S.

1979-05-01

A theory of the α-decay in terms of irreducible reaction amplitude of the α-particle formation in the four particle channel (Tsub(4→α)) is given. By inserting a new universal constant determined by the coupling interaction between the many body Fermi liquid state and the α-cluster state we have calculated the α-widths for some favoured and unfavoured α-transitions in the translead region. Good agreement with the experimental data is obtained. (author)

The physics of exceptional points

International Nuclear Information System (INIS)

Heiss, W D

2012-01-01

A short résumé is given about the nature of exceptional points (EPs) followed by discussions about their ubiquitous occurrence in a great variety of physical problems. EPs feature in classical as well as in quantum mechanical problems. They are associated with symmetry breaking for PT-symmetric Hamiltonians, where a great number of experiments has been performed, in particular in optics, and to an increasing extent in atomic and molecular physics. EPs are involved in quantum phase transition and quantum chaos; they produce dramatic effects in multichannel scattering, specific time dependence and more. In nuclear physics, they are associated with instabilities and continuum problems. Being spectral singularities they also affect approximation schemes. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical devoted to ‘Quantum physics with non-Hermitian operators’. (paper)

Impedance technique for measuring dielectrophoretic collection of microbiological particles

CERN Document Server

Allsopp, D W E; Brown, A P; Betts, W B

1999-01-01

Measurement of the impedance change resulting from the collection of microbiological particles at coplanar electrodes is shown to be an effective and potentially quantitative method of detecting dielectrophoresis. Strong correlations between the frequency-dependent dielectrophoretic collection characteristics measured by impedance change and those observed using an established counting method based on image analysis have been obtained for Escherichia coli. In addition it is shown that the new electrical method can be used to sense dielectrophoretic collection of 19 nm diameter latex beads, particles too small to be resolved by conventional optical detection systems. (author)

9 CFR 85.6 - Interstate movement of pseudorabies vaccinate swine, except swine from qualified negative gene...

Science.gov (United States)

2010-01-01

... vaccinate swine, except swine from qualified negative gene-altered vaccinated herds, not known to be..., except swine from qualified negative gene-altered vaccinated herds, not known to be infected with or exposed to pseudorabies. Pseudorabies vaccinate swine, except swine from qualified negative gene-altered...

Collective strategic defaults: Bailouts and repayment incentives

NARCIS (Netherlands)

Vlahu, R.

2008-01-01

This paper shows that under a global games approach banks may be subject to risk of failure even when fundamentals are strong due to a coordination problem among debtors. As a result of collective strategic default a financially sound firm may claim inability to repay if it expects a sufficient

38 CFR 4.86 - Exceptional patterns of hearing impairment.

Science.gov (United States)

2010-07-01

... hearing impairment. 4.86 Section 4.86 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS SCHEDULE FOR RATING DISABILITIES Disability Ratings Impairment of Auditory Acuity § 4.86 Exceptional patterns of hearing impairment. (a) When the puretone threshold at each of the four specified...

Strong cellulase inhibition by Mannan polysaccharides in cellulose conversion to sugars.

Science.gov (United States)

Kumar, Rajeev; Wyman, Charles E

2014-07-01

Cellulase enzymes contribute a major fraction of the total cost for biological conversion of lignocellulosic biomass to fuels and chemicals. Although a several fold reduction in cellulase production costs and enhancement of cellulase activity and stability have been reported in recent years, sugar yields are still lower at low enzyme doses than desired commercially. We recently reported that hemicellulose xylan and its oligomers strongly inhibit cellulase and that supplementation of cellulase with xylanase and β-xylosidase would significantly reduce such inhibition. In this study, mannan polysaccharides and their enzymatically prepared hydrolyzates were discovered to be strongly inhibitory to fungal cellulase in cellulose conversion (>50% drop in % relative conversion), even at a small concentration of 0.1 g/L, and inhibition was much greater than experienced by other known inhibitors such as cellobiose, xylooligomers, and furfural. Furthermore, cellulase inhibition dramatically increased with heteromannan loading and mannan substitution with galactose side units. In general, enzymatically prepared hydrolyzates were less inhibitory than their respective mannan polysaccharides except highly substituted ones. Supplementation of cellulase with commercial accessory enzymes such as xylanase, pectinase, and β-glucosidase was effective in greatly relieving inhibition but only for less substituted heteromannans. However, cellulase supplementation with purified heteromannan specific enzymes relieved inhibition by these more substituted heteromannans as well, suggesting that commercial preparations need to have higher amounts of such activities to realize high sugar yields at the low enzyme protein loadings needed for low cost fuels production. © 2014 Wiley Periodicals, Inc.

76 FR 45292 - New Agency Information Collection for Solicitation of Nominations for the Advisory Board for...

Science.gov (United States)

2011-07-28

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs New Agency Information Collection for Solicitation of Nominations for the Advisory Board for Exceptional Children; Request for Comments AGENCIES: Bureau of Indian Affairs, Interior. ACTION: Notice of submission to the Office of Management and Budget...

76 FR 9593 - New Agency Information Collection for Solicitation of Nominations for the Advisory Board for...

Science.gov (United States)

2011-02-18

... DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs New Agency Information Collection for Solicitation of Nominations for the Advisory Board for Exceptional Children; Request for Comments AGENCIES: Bureau of Indian Affairs, Interior. ACTION: Notice of request for comments. SUMMARY: In compliance with...

Exceptional points and quantum correlations in precise measurements

International Nuclear Information System (INIS)

Thilagam, A

2012-01-01

We examine the physical manifestations of exceptional points and passage times in a two-level system which is subjected to quantum measurements and which admits a non-Hermitian description. Using an effective Hamiltonian acting in the two-dimensional space spanned by the evolving initial and final states, the effects of highly precise quantum measurements in which the monitoring device interferes significantly with the evolution dynamics of the monitored two-level system is analyzed. The dynamics of a multipartite system consisting of the two-level system, a source of external potential and the measurement device is examined using correlation measures such as entanglement and non-classical quantum correlations. Results show that the quantum correlations between the monitored (monitoring) systems is considerably decreased (increased) as the measurement precision nears the exceptional point, at which the passage time is half of the measurement duration. The results indicate that the underlying mechanism by which the non-classical correlations of quantum systems are transferred from one subsystem to another may be better revealed via use of geometric approaches. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical devoted to ‘Quantum physics with non-Hermitian operators’. (paper)

Algebraic equations for the exceptional eigenspectrum of the generalized Rabi model

International Nuclear Information System (INIS)

Li, Zi-Min; Batchelor, Murray T

2015-01-01

We obtain the exceptional part of the eigenspectrum of the generalized Rabi model, also known as the driven Rabi model, in terms of the roots of a set of algebraic equations. This approach provides a product form for the wavefunction components and allows an explicit connection with recent results obtained for the wavefunction in terms of truncated confluent Heun functions. Other approaches are also compared. For particular parameter values the exceptional part of the eigenspectrum consists of doubly degenerate crossing points. We give a proof for the number of roots of the constraint polynomials and discuss the number of crossing points. (paper)

Les Houches Summer School : Strongly Interacting Quantum Systems out of Equilibrium

CERN Document Server

Millis, Andrew J; Parcollet, Olivier; Saleur, Hubert; Cugliandolo, Leticia F

2016-01-01

Over the last decade new experimental tools and theoretical concepts are providing new insights into collective nonequilibrium behavior of quantum systems. The exquisite control provided by laser trapping and cooling techniques allows us to observe the behavior of condensed bose and degenerate Fermi gases under nonequilibrium drive or after quenches' in which a Hamiltonian parameter is suddenly or slowly changed. On the solid state front, high intensity short-time pulses and fast (femtosecond) probes allow solids to be put into highly excited states and probed before relaxation and dissipation occur. Experimental developments are matched by progress in theoretical techniques ranging from exact solutions of strongly interacting nonequilibrium models to new approaches to nonequilibrium numerics. The summer school Strongly interacting quantum systems out of equilibrium' held at the Les Houches School of Physics as its XCIX session was designed to summarize this progress, lay out the open questions and define dir...

Quartic trace identity for exceptional Lie algebras

International Nuclear Information System (INIS)

Okubo, S.

1979-01-01

Let X be a representation matrix of generic element x of a simple Lie algebra in generic irreducible representation ]lambda] of the Lie algebra. Then, for all exceptional Lie algebras as well as A 1 and A 2 , we can prove the validity of a quartic trace identity Tr(X 4 ) =K (lambda)[Tr(X 2 )] 2 , where the constant K (lambda) depends only upon the irreducible representation ]lambda], and its explicit form is calculated. Some applications of second and fourth order indices have also been discussed

Generalized Fano lineshapes reveal exceptional points in photonic molecules

NARCIS (Netherlands)

Caselli, N.; Intonti, F.; La China, Federico; Biccari, F.; Riboli, F.; Gerardino, A.; Li, L.; Linfield, E.H.; Pagliano, F.; Fiore, A.; Gurioli, M.

2018-01-01

The optical behavior of coupled systems, in which the breaking of parity and time-reversal symmetry occurs, is drawing increasing attention to address the physics of the exceptional point singularity, i.e., when the real and imaginary parts of the normal-mode eigenfrequencies coincide. At this

Exceptional Lie groups, E-infinity theory and Higgs Boson

International Nuclear Information System (INIS)

El-Okaby, Ayman A.

2008-01-01

In this paper we study the correlation between El-Naschie's exceptional Lie groups hierarchies and his transfinite E-infinity space-time theory. Subsequently this correlation is used to calculate the number of elementary particles in the standard model, mass of the Higgs Bosons and some coupling constants

Abortion: Strong's counterexamples fail

DEFF Research Database (Denmark)

Di Nucci, Ezio

2009-01-01

This paper shows that the counterexamples proposed by Strong in 2008 in the Journal of Medical Ethics to Marquis's argument against abortion fail. Strong's basic idea is that there are cases--for example, terminally ill patients--where killing an adult human being is prima facie seriously morally...

On the flavor problem in strongly coupled theories

Energy Technology Data Exchange (ETDEWEB)

Bauer, Martin

2012-11-28

This thesis is on the flavor problem of Randall Sundrum models and their strongly coupled dual theories. These models are particularly well motivated extensions of the Standard Model, because they simultaneously address the gauge hierarchy problem and the hierarchies in the quark masses and mixings. In order to put this into context, special attention is given to concepts underlying the theories which can explain the hierarchy problem and the flavor structure of the Standard Model (SM). The AdS/CFT duality is introduced and its implications for the Randall Sundrum model with fermions in the bulk and general bulk gauge groups is investigated. It is shown that the different terms in the general 5D propagator of a bulk gauge field can be related to the corresponding diagrams of the strongly coupled dual, which allows for a deeper understanding of the origin of flavor changing neutral currents generated by the exchange of the Kaluza Klein excitations of these bulk fields. In the numerical analysis, different observables which are sensitive to corrections from the tree-level exchange of these resonances will be presented on the basis of updated experimental data from the Tevatron and LHC experiments. This includes electroweak precision observables, namely corrections to the S and T parameters followed by corrections to the Zb anti b vertex, flavor changing observables with flavor changes at one vertex, viz. B(B{sub d}{yields}{mu}{sup +}{mu}{sup -}) and B(B{sub s}{yields}{mu}{sup +}{mu}{sup -}), and two vertices, viz. S{sub {psi}{phi}} and vertical stroke {epsilon}{sub K} vertical stroke, as well as bounds from direct detection experiments. The analysis will show that all of these bounds can be brought in agreement with a new physics scale {Lambda}{sub NP} in the TeV range, except for the CP violating quantity vertical stroke {epsilon}{sub K} vertical stroke, which requires {Lambda}{sub NP}=O(10) TeV in the absence of fine-tuning. The numerous modifications of the

On the flavor problem in strongly coupled theories

International Nuclear Information System (INIS)

Bauer, Martin

2012-01-01

This thesis is on the flavor problem of Randall Sundrum models and their strongly coupled dual theories. These models are particularly well motivated extensions of the Standard Model, because they simultaneously address the gauge hierarchy problem and the hierarchies in the quark masses and mixings. In order to put this into context, special attention is given to concepts underlying the theories which can explain the hierarchy problem and the flavor structure of the Standard Model (SM). The AdS/CFT duality is introduced and its implications for the Randall Sundrum model with fermions in the bulk and general bulk gauge groups is investigated. It is shown that the different terms in the general 5D propagator of a bulk gauge field can be related to the corresponding diagrams of the strongly coupled dual, which allows for a deeper understanding of the origin of flavor changing neutral currents generated by the exchange of the Kaluza Klein excitations of these bulk fields. In the numerical analysis, different observables which are sensitive to corrections from the tree-level exchange of these resonances will be presented on the basis of updated experimental data from the Tevatron and LHC experiments. This includes electroweak precision observables, namely corrections to the S and T parameters followed by corrections to the Zb anti b vertex, flavor changing observables with flavor changes at one vertex, viz. B(B d →μ + μ - ) and B(B s →μ + μ - ), and two vertices, viz. S ψφ and vertical stroke ε K vertical stroke, as well as bounds from direct detection experiments. The analysis will show that all of these bounds can be brought in agreement with a new physics scale Λ NP in the TeV range, except for the CP violating quantity vertical stroke ε K vertical stroke, which requires Λ NP =O(10) TeV in the absence of fine-tuning. The numerous modifications of the Randall Sundrum model in the literature, which try to attenuate this bound are reviewed and categorized

Oblate collectivity in 197,198Pb

International Nuclear Information System (INIS)

Kuhnert, A.; Wang, T.F.; Stoyer, M.A.; Becker, J.A.; Henry, E.A.; Brinkman, M.J.; Yates, S.W.; Draper, J.E.; Deleplanque, M.A.; Diamond, R.M.; Stephens, F.S.; Machiavelli, A.O.; Kelly, W.H.; Korten, W.; Azaiez, F.; Cizewski, J.A.

1993-01-01

Evidence for collective behavior in the high-spin region of neutron deficient lead nuclei is provided by the observation of four collective structures in 197,198 Pb. These bands consist of strong dipole (M1) transitions with a few E2 crossover transitions observed. The transition energies of three of these bands show a rather regular behavior while those of one of them show an irregular behavior. We interpret the regular bands as oblate collective bands built on oblate proton and neutron states, whereas the irregular band might either be built on a state with very small oblate deformation, or be a triaxial rotational band. A lifetime measurement (DSAM) has been done for the regular bands in 198 Pb. Neutron and proton configurations for the bands are suggested from the results of quasi particle Routhians and total Routhian surface (TRS) calculations. (orig.)

Oblate collectivity in 197,198Pb

International Nuclear Information System (INIS)

Kuhnert, A.; Wang, T.F.; Stoyer, M.A.; Becker, J.A.; Henry, E.A.; Brinkman, M.J.; Yates, S.W.; Draper, J.E.; Deleplanque, M.A.; Diamond, R.M.; Stephens, F.S.; Machiavelli, A.O.; Kelly, W.H.; Korten, W.; Azaiez, F.

1992-07-01

Evidence for collective behavior in the high-spin region of neutron deficient lead nuclei is provided by the observation of four collective structures in 197,198 Pb. These bands consist of strong dipole (M1) transitions with a few E2 crossover transitions observed. The transition energies of three of these bands show a rather regular behavior while those of one of them show an irregular behavior. We interpret the regular bands as oblate collective bands built on oblate proton and neutron states, whereas the irregular band might either be built on a state with very small oblate deformation, or be a triaxial rotational band. A lifetime measurement (DSAM) has been done for the regular bands in 198 Pb. Neutron and proton configurations for the bands are suggested from the results of quasi particle Routhians and total Routhian surface (TRS) calculations

49 CFR 173.12 - Exceptions for shipment of waste materials.

Science.gov (United States)

2010-10-01

... blocked and braced in such a manner that they are separated from incompatible materials by a minimum... pallet with shrink-wrap or stretch-wrap except that labels representative of each Hazard Class or...

Computer Use and Behavior Problems in Twice-Exceptional Students

Science.gov (United States)

Alloway, Tracy Packiam; Elsworth, Miquela; Miley, Neal; Seckinger, Sean

2016-01-01

This pilot study investigated how engagement with computer games and TV exposure may affect behaviors of gifted students. We also compared behavioral and cognitive profiles of twice-exceptional students and children with Attention Deficit/Hyperactivity Disorder (ADHD). Gifted students were divided into those with behavioral problems and those…

Self-consistent collective coordinate method for large amplitude collective motions

International Nuclear Information System (INIS)

Sakata, F.; Hashimoto, Y.; Marumori, T.; Une, T.

1982-01-01

A recent development of the self-consistent collective coordinate method is described. The self-consistent collective coordinate method was proposed on the basis of the fundamental principle called the invariance principle of the Schroedinger equation. If this is formulated within a framework of the time dependent Hartree Fock (TDHF) theory, a classical version of the theory is obtained. A quantum version of the theory is deduced by formulating it within a framework of the unitary transformation method with auxiliary bosons. In this report, the discussion is concentrated on a relation between the classical theory and the quantum theory, and an applicability of the classical theory. The aim of the classical theory is to extract a maximally decoupled collective subspace out of a huge dimensional 1p - 1h parameter space introduced by the TDHF theory. An intimate similarity between the classical theory and a full quantum boson expansion method (BEM) was clarified. Discussion was concentrated to a simple Lipkin model. Then a relation between the BEM and the unitary transformation method with auxiliary bosons was discussed. It became clear that the quantum version of the theory had a strong relation to the BEM, and that the BEM was nothing but a quantum analogue of the present classical theory. The present theory was compared with the full TDHF calculation by using a simple model. (Kato, T.)

40 CFR 82.66 - Nonessential Class I products and exceptions.

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2010-07-01

... cleaning fluids used for aircraft maintenance, which contain CFC-11 or CFC-113 as a solvent, but which... liquid packaging, solvent wipes, solvent sprays, and gas sprays; and (2) Except for those sold or...

Generalized IIB supergravity from exceptional field theory

Energy Technology Data Exchange (ETDEWEB)

Baguet, Arnaud; Magro, Marc; Samtleben, Henning [Laboratoire de Physique, Université Claude Bernard Lyon 1, Ens de Lyon, CNRS,F-69342 Lyon (France)

2017-03-20

The background underlying the η-deformed AdS{sub 5}×S{sup 5} sigma-model is known to satisfy a generalization of the IIB supergravity equations. Their solutions are related by T-duality to solutions of type IIA supergravity with non-isometric linear dilaton. We show how the generalized IIB supergravity equations can be naturally obtained from exceptional field theory. Within this manifestly duality covariant formulation of maximal supergravity, the generalized IIB supergravity equations emerge upon imposing on the fields a simple Scherk-Schwarz ansatz which respects the section constraint.

77 FR 16131 - Establishing a White House Council on Strong Cities, Strong Communities

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2012-03-20

... Order 13602 of March 15, 2012 Establishing a White House Council on Strong Cities, Strong Communities By... enable them to develop and implement economic strategies to become more competitive, sustainable, and... resources to develop and implement their economic vision and strategies. Sec. 2. White House Council on...

Instabilities in strongly coupled plasmas

CERN Document Server

Kalman, G J

2003-01-01

The conventional Vlasov treatment of beam-plasma instabilities is inappropriate when the plasma is strongly coupled. In the strongly coupled liquid state, the strong correlations between the dust grains fundamentally affect the conditions for instability. In the crystalline state, the inherent anisotropy couples the longitudinal and transverse polarizations, and results in unstable excitations in both polarizations. We summarize analyses of resonant and non-resonant, as well as resistive instabilities. We consider both ion-dust streaming and dust beam-plasma instabilities. Strong coupling, in general, leads to an enhancement of the growth rates. In the crystalline phase, a resonant transverse instability can be excited.

Waveguides with Absorbing Boundaries: Nonlinearity Controlled by an Exceptional Point and Solitons

Science.gov (United States)

Midya, Bikashkali; Konotop, Vladimir V.

2017-07-01

We reveal the existence of continuous families of guided single-mode solitons in planar waveguides with weakly nonlinear active core and absorbing boundaries. Stable propagation of TE and TM-polarized solitons is accompanied by attenuation of all other modes, i.e., the waveguide features properties of conservative and dissipative systems. If the linear spectrum of the waveguide possesses exceptional points, which occurs in the case of TM polarization, an originally focusing (defocusing) material nonlinearity may become effectively defocusing (focusing). This occurs due to the geometric phase of the carried eigenmode when the surface impedance encircles the exceptional point. In its turn, the change of the effective nonlinearity ensures the existence of dark (bright) solitons in spite of focusing (defocusing) Kerr nonlinearity of the core. The existence of an exceptional point can also result in anomalous enhancement of the effective nonlinearity. In terms of practical applications, the nonlinearity of the reported waveguide can be manipulated by controlling the properties of the absorbing cladding.

26 CFR 301.7701(b)-2 - Closer connection exception.

Science.gov (United States)

2010-04-01

...) Duration and nature of tax home. The tax home maintained by the alien individual must be in existence for... exception. (a) In general. An alien individual who meets the substantial presence test may nevertheless be considered a nonresident alien for the current year if the following conditions are satisfied— (1) The...

Families of superintegrable Hamiltonians constructed from exceptional polynomials

International Nuclear Information System (INIS)

Post, Sarah; Tsujimoto, Satoshi; Vinet, Luc

2012-01-01

We introduce a family of exactly-solvable two-dimensional Hamiltonians whose wave functions are given in terms of Laguerre and exceptional Jacobi polynomials. The Hamiltonians contain purely quantum terms which vanish in the classical limit leaving only a previously known family of superintegrable systems. Additional, higher-order integrals of motion are constructed from ladder operators for the considered orthogonal polynomials proving the quantum system to be superintegrable. (paper)

SUBSTANTIAL EXCEPTIONS AND (DELIMITATIONS OF THE POWERS OF THE JUDGES ON CIVIL PROCEDURAL LAW

Directory of Open Access Journals (Sweden)

Igor Raatz

2017-08-01

Full Text Available This essay aims to unveil the role of the substantial exceptions on delimiting the powers of the judges on civil procedural law, especially regarding the ex officio judicial activity. This way, under a phenomenological method and based on a vision of guarantee of rights on procedural law, the article offers a brief explanation of the question concerning the content of the object under litigation and its role of (delimiting the powers of the judges. The work hypothesis is the addition of the substantial exceptions among the content of the object under litigation, along with the claim itself and the cause of action. The results lie on the premise that, by the substantial exceptions, the defendant extends the object under litigation – which is formed dynamically on civil procedure. The conclusion points towards the idea that the substantial exceptions act in a way of limiting the ex officio judicial activity on civil procedural law

Kinetic theory of wave spectra in semiconductors at the strong constant electric field

International Nuclear Information System (INIS)

Grinev, B.V.; Seminozhenko, V.P.; Yatsenko, A.A.

1984-01-01

With allowanse made for the effect of strong static electric field on the electronic interaction with collective oscillations in plasms, the Languemure oscillations, ion acoustic instability of plasma with current are considered in the collisionless limit. The electric field dependence of the collisionless damping of transversal wayes is determined borh in the degenerate and the nondegenerate cases. The influence of the constant electric field on the anomalous skineffect isstudied

Quantum models with energy-dependent potentials solvable in terms of exceptional orthogonal polynomials

International Nuclear Information System (INIS)

Schulze-Halberg, Axel; Roy, Pinaki

2017-01-01

We construct energy-dependent potentials for which the Schrödinger equations admit solutions in terms of exceptional orthogonal polynomials. Our method of construction is based on certain point transformations, applied to the equations of exceptional Hermite, Jacobi and Laguerre polynomials. We present several examples of boundary-value problems with energy-dependent potentials that admit a discrete spectrum and the corresponding normalizable solutions in closed form.

Quantum models with energy-dependent potentials solvable in terms of exceptional orthogonal polynomials

Energy Technology Data Exchange (ETDEWEB)

Schulze-Halberg, Axel, E-mail: axgeschu@iun.edu [Department of Mathematics and Actuarial Science, Indiana University Northwest, 3400 Broadway, Gary IN 46408 (United States); Department of Physics, Indiana University Northwest, 3400 Broadway, Gary IN 46408 (United States); Roy, Pinaki, E-mail: pinaki@isical.ac.in [Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata 700108 (India)

2017-03-15

We construct energy-dependent potentials for which the Schrödinger equations admit solutions in terms of exceptional orthogonal polynomials. Our method of construction is based on certain point transformations, applied to the equations of exceptional Hermite, Jacobi and Laguerre polynomials. We present several examples of boundary-value problems with energy-dependent potentials that admit a discrete spectrum and the corresponding normalizable solutions in closed form.

Contribution of Strong Discontinuities to the Power Spectrum of the Solar Wind

International Nuclear Information System (INIS)

Borovsky, Joseph E.

2010-01-01

Eight and a half years of magnetic field measurements (2 22 samples) from the ACE spacecraft in the solar wind at 1 A.U. are analyzed. Strong (large-rotation-angle) discontinuities in the solar wind are collected and measured. An artificial time series is created that preserves the timing and amplitudes of the discontinuities. The power spectral density of the discontinuity series is calculated and compared with the power spectral density of the solar-wind magnetic field. The strong discontinuities produce a power-law spectrum in the ''inertial subrange'' with a spectral index near the Kolmogorov -5/3 index. The discontinuity spectrum contains about half of the power of the full solar-wind magnetic field over this ''inertial subrange.'' Warnings are issued about the significant contribution of discontinuities to the spectrum of the solar wind, complicating interpretation of spectral power and spectral indices.

Can the exceptional chilling tolerance of C4 photosynthesis found in Miscanthus × giganteus be exceeded? Screening of a novel Miscanthus Japanese germplasm collection.

Science.gov (United States)

Głowacka, Katarzyna; Jørgensen, Uffe; Kjeldsen, Jens B; Kørup, Kirsten; Spitz, Idan; Sacks, Erik J; Long, Stephen P

2015-05-01

A clone of the hybrid perennial C4 grass Miscanthus × giganteus (Mxg) is known for achieving exceptionally high rates of leaf CO2 uptake during chilling. This is a requisite of success in the early spring, as is the ability of the leaves to survive occasional frosts. The aim of this study was to search for genotypes with greater potential than Mxg for photosynthesis and frost survival under these conditions. A total of 864 accessions representing 164 local populations of M. sacchariflorus (Msa), M. sinensis (Msi) and M. tinctorius (Mti) collected across Japan were studied. Accessions whose leaves survived a natural late frost in the field were screened for high maximum photosystem II efficiency (Fv/Fm) following chilling weather, as an indicator of their capacity for light-limited photosynthesis. Those showing the highest Fv/Fm were transferred to a high-light-controlled environment and maintained at chilling temperatures, where they were further screened for their capacities for high-light-limited and light-saturated leaf uptake of CO2 (ΦCO2,max and Asat, respectively). For the first time, relatives of Mxg with significantly superior capacities for photosynthesis at chilling temperatures were identified. Msa accession '73/2' developed leaves in the spring that survived night-time frost, and during growth under chilling maintained a statistically significant 79 % higher ΦCO2,max, as a measure of light-limited photosynthesis, and a 70 % higher Asat, as a measure of light-saturated photosynthesis. A second Msa accession, '73/3' also showed significantly higher rates of leaf uptake of CO2. As remarkable as Mxg has proved in its chilling tolerance of C4 photosynthesis, this study shows that there is still value and potential in searching for yet more superior tolerance. Msa accession '73/2' shows rates of light-limited and light-saturated photosynthesis at chilling temperatures that are comparable with those of the most cold-tolerant C3 species. This adds

Anisotropy and Strong-Coupling Effects on the Collective Mode Spectrum of Chiral Superconductors: Application to Sr₂RuO₄

Directory of Open Access Journals (Sweden)

James Avery Sauls

2015-06-01

Full Text Available Recent theories of Sr2RuO4 based on the interplay of strong interactions, spin-orbit coupling and multi-band anisotropy predict chiral or helical ground states with strong anisotropy of the pairing states, with deep minima in the excitation gap, as well as strong phase anisotropy for the chiral ground state. We develop time-dependent mean field theory to calculate the Bosonic spectrum for the class of 2D chiral superconductors spanning 3He-A to chiral superconductors with strong anisotropy. Chiral superconductors support a pair of massive Bosonic excitations of the time-reversed pairs labeled by their parity under charge conjugation. These modes are degenerate for 2D 3He-A. Crystal field anisotropy lifts the degeneracy. Strong anisotropy also leads to low-lying Fermions, and thus to channels for the decay of the Bosonic modes. Selection rules and phase space considerations lead to large asymmetries in the lifetimes and hybridization of the Bosonic modes with the continuum of un-bound Fermion pairs. We also highlight results for the excitation of the Bosonic modes by microwave radiation that provide clear signatures of the Bosonic modes of an anisotropic chiral ground state.

Strongly interacting Fermi gases

Directory of Open Access Journals (Sweden)

Bakr W.

2013-08-01

Full Text Available Strongly interacting gases of ultracold fermions have become an amazingly rich test-bed for many-body theories of fermionic matter. Here we present our recent experiments on these systems. Firstly, we discuss high-precision measurements on the thermodynamics of a strongly interacting Fermi gas across the superfluid transition. The onset of superfluidity is directly observed in the compressibility, the chemical potential, the entropy, and the heat capacity. Our measurements provide benchmarks for current many-body theories on strongly interacting fermions. Secondly, we have studied the evolution of fermion pairing from three to two dimensions in these gases, relating to the physics of layered superconductors. In the presence of p-wave interactions, Fermi gases are predicted to display toplogical superfluidity carrying Majorana edge states. Two possible avenues in this direction are discussed, our creation and direct observation of spin-orbit coupling in Fermi gases and the creation of fermionic molecules of 23Na 40K that will feature strong dipolar interactions in their absolute ground state.

Strong movement data currently available at IPSN/DAS

International Nuclear Information System (INIS)

Hamaide, D.; Mohammadioun, B.; Mohammadioun, G.

1986-01-01

The collection of recordings and other data on strong seismic motion compiled by the Departement d'Analyse de Surete de l'Institut de Protection et de Surete Nucleaire (Commissariat a l'Energie Atomique) to form a data base known as ''sismotheque'' are presented. Following an introduction wherein the necessity of creating such a repertory for evaluating seismic hazard on the sites of nuclear facilities is explained, a description is given of the means engaged, i.e. motion recorded by the DAS's own laboratory or data procured from other research units in France or abroad. The quantity and quality of the data now available are summarized, as well as the techniques designed to gain access to desired information, illustrated by concrete examples. The paper concludes with recommendations for future developments [fr

27 CFR 28.295 - Exception for export of beer.

Science.gov (United States)

2010-04-01

... beer. 28.295 Section 28.295 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE... Alternate Procedures § 28.295 Exception for export of beer. The provisions of this subpart do not apply in the case of beer when the exporter or claimant obtains proof of exportation other than certification...

Quantum electrodynamics of strong fields

International Nuclear Information System (INIS)

Greiner, W.

1983-01-01

Quantum Electrodynamics of Strong Fields provides a broad survey of the theoretical and experimental work accomplished, presenting papers by a group of international researchers who have made significant contributions to this developing area. Exploring the quantum theory of strong fields, the volume focuses on the phase transition to a charged vacuum in strong electric fields. The contributors also discuss such related topics as QED at short distances, precision tests of QED, nonperturbative QCD and confinement, pion condensation, and strong gravitational fields In addition, the volume features a historical paper on the roots of quantum field theory in the history of quantum physics by noted researcher Friedrich Hund

Surface chemical modification for exceptional wear life of MEMS materials

Directory of Open Access Journals (Sweden)

R. Arvind Singh

2011-12-01

Full Text Available Micro-Electro-Mechanical-Systems (MEMS are built at micro/nano-scales. At these scales, the interfacial forces are extremely strong. These forces adversely affect the smooth operation and cause wear resulting in the drastic reduction in wear life (useful operating lifetime of actuator-based devices. In this paper, we present a surface chemical modification method that reduces friction and significantly extends the wear life of the two most popular MEMS structural materials namely, silicon and SU-8 polymer. The method includes surface chemical treatment using ethanolamine-sodium phosphate buffer, followed by coating of perfluoropolyether (PFPE nanolubricant on (i silicon coated with SU-8 thin films (500 nm and (ii MEMS process treated SU-8 thick films (50 μm. After the surface chemical modification, it was observed that the steady-state coefficient of friction of the materials reduced by 4 to 5 times and simultaneously their wear durability increased by more than three orders of magnitude (> 1000 times. The significant reduction in the friction coefficients is due to the lubrication effect of PFPE nanolubricant, while the exceptional increase in their wear life is attributed to the bonding between the -OH functional group of ethanolamine treated SU-8 thin/thick films and the -OH functional group of PFPE. The surface chemical modification method acts as a common route to enhance the performance of both silicon and SU-8 polymer. It is time-effective (process time ≤ 11 min, cost-effective and can be readily integrated into MEMS fabrication/assembly processes. It can also work for any kind of structural material from which the miniaturized devices are/can be made.

Exceptional longevity and exceptionally high metabolic rates in anthropoid primates are linked to a major modification of the ubiquinone reduction site of cytochrome b.

Science.gov (United States)

Rottenberg, Hagai

2014-10-01

The maximal lifespan of Anthropoid primates (monkeys, apes and humans) exceed the lifespan of most other mammals of equal body mass. Unexpectedly, their exceptional longevity is associated with exceptionally high metabolic rates, in apparent contradiction to the Free Radical Theory of Aging. It was therefore suggested that in anthropoid primates (and several other taxa of mammals and birds) the mitochondrial electron transport complexes evolved to modify the relationship between basal electron transport and superoxide generation to allow for the evolution of exceptional longevity. Cytochrome b, the core protein of the bc1 complex is a major source of superoxide. The amino-acid sequence of cytochrome b evolved much faster in anthropoid than in prosimian primates, and most other mammals, resulting in a large change in the amino-acids composition of the protein. As a result of these changes cytochrome b in anthropoid primates is significantly less hydrophobic and contains more polar residues than other primates and most other mammals. Most of these changes are clustered around the reduction site of uboiquinone. In particular a key positively charged residue, arginine 313, that interacts with propionate D of heme bH, and thus raises its redox potential, is substituted in anthropoid primates with the neutral residue glutamine, most likely resulting in a lower redox potential of heme bH and faster reduction of ubiquinone at high proton motive force. It is suggested that these changes contribute to the observed increased rates of basal metabolism and reduce the rates of superoxide production, thus allowing for increased lifespan.

Ethical considerations in forensic genetics research on tissue samples collected post-mortem in Cape Town, South Africa.

Science.gov (United States)

Heathfield, Laura J; Maistry, Sairita; Martin, Lorna J; Ramesar, Raj; de Vries, Jantina

2017-11-29

The use of tissue collected at a forensic post-mortem for forensic genetics research purposes remains of ethical concern as the process involves obtaining informed consent from grieving family members. Two forensic genetics research studies using tissue collected from a forensic post-mortem were recently initiated at our institution and were the first of their kind to be conducted in Cape Town, South Africa. This article discusses some of the ethical challenges that were encountered in these research projects. Among these challenges was the adaptation of research workflows to fit in with an exceptionally busy service delivery that is operating with limited resources. Whilst seeking guidance from the literature regarding research on deceased populations, it was noted that next of kin of decedents are not formally recognised as a vulnerable group in the existing ethical and legal frameworks in South Africa. The authors recommend that research in the forensic mortuary setting is approached using guidance for vulnerable groups, and the benefit to risk standard needs to be strongly justified. Lastly, when planning forensic genetics research, consideration must be given to the potential of uncovering incidental findings, funding to validate these findings and the feedback of results to family members; the latter of which is recommended to occur through a genetic counsellor. It is hoped that these experiences will contribute towards a formal framework for conducting forensic genetic research in medico-legal mortuaries in South Africa.

Phenology and carbon dioxide source/sink strength of a subalpine grassland in response to an exceptionally short snow season

International Nuclear Information System (INIS)

Galvagno, M; Cremonese, E; Filippa, G; Morra di Cella, U; Wohlfahrt, G; Rossini, M; Colombo, R; Julitta, T; Manca, G; Siniscalco, C; Migliavacca, M

2013-01-01

Changes in snow cover depth and duration predicted by climate change scenarios are expected to strongly affect high-altitude ecosystem processes. This study investigates the effect of an exceptionally short snow season on the phenology and carbon dioxide source/sink strength of a subalpine grassland. An earlier snowmelt of more than one month caused a considerable advancement (40 days) of the beginning of the carbon uptake period (CUP) and, together with a delayed establishment of the snow season in autumn, contributed to a two-month longer CUP. The combined effect of the shorter snow season and the extended CUP led to an increase of about 100% in annual carbon net uptake. Nevertheless, the unusual environmental conditions imposed by the early snowmelt led to changes in canopy structure and functioning, with a reduction of the carbon sequestration rate during the snow-free period. (letter)

42 CFR 137.22 - May the Secretary consider uncorrected significant and material audit exceptions identified...

Science.gov (United States)

2010-10-01

... and material audit exceptions identified regarding centralized financial and administrative functions... Tribes for Participation in Self-Governance Planning Phase § 137.22 May the Secretary consider uncorrected significant and material audit exceptions identified regarding centralized financial and...

Strong-coupling theory of superconductivity

International Nuclear Information System (INIS)

Rainer, D.; Sauls, J.A.

1995-01-01

The electronic properties of correlated metals with a strong electron-phonon coupling may be understood in terms of a combination of Landau''s Fermi liquid theory and the strong-coupling theory of Migdal and Eliashberg. In these lecture notes we discuss the microscopic foundations of this phenomenological Fermi-liquid model of correlated, strong-coupling metals. We formulate the basic equations of the model, which are quasiclassical transport equations that describe both equilibrium and non-equilibrium phenomena for the normal and superconducting states of a metal. Our emphasis is on superconductors close to equilibrium, for which we derive the general linear response theory. As an application we calculate the dynamical conductivity of strong-coupling superconductors. (author)

Exceptional bone metastasis of basal cell carcinoma in Gorlin-Goltz syndrome.

Science.gov (United States)

Lamon, Tatiana; Gerard, Stephane; Meyer, Nicolas; Losfeld, Benjamin; Abellan van Kan, Gabor; Balardy, Laurent; Vellas, Bruno

2010-01-01

Basal cell carcinoma (BCC), the most prevalent form of cancer worldwide, is a malignant skin neoplasm. It is locally invasive, with an exceptional incidence of reported metastasis. It can also be part of the Gorlin-Goltz syndrome, an autosomal dominant genetic disorder with high penetrance and variable expressivity, which is principally characterized by cutaneous BCC, odontogenic keratocysts, palmar and/or plantar pits, and falx cerebri calcification. We report the exceptional clinical observation of a 54-year-old man presenting bone metastasis from BCC in Gorlin-Goltz syndrome. Less than 300 cases of metastatic BCC have been reported in the literature. The present case is the second associated with Gorlin-Goltz syndrome. Copyright 2009 S. Karger AG, Basel.

The Exception of Non-performance and its Role in Debt Assignments

Directory of Open Access Journals (Sweden)

Maria Căzănel

2016-01-01

Full Text Available Debt assignments have the effect of assigning a new creditor in the legal position of the creditorassignor, i.e. the right to claim, with all its accessories and warranties, in the same legalconditions, enforceable against all exceptions of the assignor, even the personal ones. Thus, theassignee is entitled to invoke the exception of breach of contract/non-performance, where the ratioof obligations originally derived from a mutually binding contract and the contractual partnerrefuses to fulfill the performance that was required. Invocation of exceptio non adimpleticontractus does not result in termination of the legal relationship of obligations, but only to itssuspension as a means to compel the debtor to fulfill the obligation assumed.

Strong Bisimilarity of Simple Process Algebras

DEFF Research Database (Denmark)

Srba, Jirí

2003-01-01

We study bisimilarity and regularity problems of simple process algebras. In particular, we show PSPACE-hardness of the following problems: (i) strong bisimilarity of Basic Parallel Processes (BPP), (ii) strong bisimilarity of Basic Process Algebra (BPA), (iii) strong regularity of BPP, and (iv......) strong regularity of BPA. We also demonstrate NL-hardness of strong regularity problems for the normed subclasses of BPP and BPA. Bisimilarity problems of simple process algebras are introduced in a general framework of process rewrite systems, and a uniform description of the new techniques used...

77 FR 44669 - 60-Day Notice of Intention To Request Clearance of Collection of Information; Opportunity for...

Science.gov (United States)

2012-07-30

... Process'' in the subject line. FOR FURTHER INFORMATION CONTACT: Patricia Henry, Historian, National... because they possess exceptional value or quality in illustrating or interpreting the heritage of the... this collection of information; Ways to enhance the quality, utility, and clarity of the information to...

Probing different regimes of strong field light-matter interaction with semiconductor quantum dots and few cavity photons

Science.gov (United States)

Hargart, F.; Roy-Choudhury, K.; John, T.; Portalupi, S. L.; Schneider, C.; Höfling, S.; Kamp, M.; Hughes, S.; Michler, P.

2016-12-01

In this work we present an extensive experimental and theoretical investigation of different regimes of strong field light-matter interaction for cavity-driven quantum dot (QD) cavity systems. The electric field enhancement inside a high-Q micropillar cavity facilitates exceptionally strong interaction with few cavity photons, enabling the simultaneous investigation for a wide range of QD-laser detuning. In case of a resonant drive, the formation of dressed states and a Mollow triplet sideband splitting of up to 45 μeV is measured for a mean cavity photon number ≤slant 1. In the asymptotic limit of the linear AC Stark effect we systematically investigate the power and detuning dependence of more than 400 QDs. Some QD-cavity systems exhibit an unexpected anomalous Stark shift, which can be explained by an extended dressed 4-level QD model. We provide a detailed analysis of the QD-cavity systems properties enabling this novel effect. The experimental results are successfully reproduced using a polaron master equation approach for the QD-cavity system, which includes the driving laser field, exciton-cavity and exciton-phonon interactions.

Tweets and Mobilisation: Collective Action Theory and Social Media

Directory of Open Access Journals (Sweden)

Cody McClain Brown

2017-06-01

Full Text Available This article examines the relationship between social protest and social media from the theoretical perspective of the Collective Action Research Program. While the literature shows strong empirical evidence for a positive relationship between social media use and incidents of social protest, the theoretical underpinnings of this relationship remain contested and often unspecified. In order to provide a stronger theoretical basis for this relationship this paper explores theories of collective action, focusing on how social media can assist in solving the dissident collective action problem. It argues that using collective action theory to understand social media and protest can better inform our understanding of how and why social media shares a positive relationship with incidents of social protest.

Seven challenges for model-driven data collection in experimental and observational studies

Directory of Open Access Journals (Sweden)

J. Lessler

2015-03-01

Full Text Available Infectious disease models are both concise statements of hypotheses and powerful techniques for creating tools from hypotheses and theories. As such, they have tremendous potential for guiding data collection in experimental and observational studies, leading to more efficient testing of hypotheses and more robust study designs. In numerous instances, infectious disease models have played a key role in informing data collection, including the Garki project studying malaria, the response to the 2009 pandemic of H1N1 influenza in the United Kingdom and studies of T-cell immunodynamics in mammals. However, such synergies remain the exception rather than the rule; and a close marriage of dynamic modeling and empirical data collection is far from the norm in infectious disease research. Overcoming the challenges to using models to inform data collection has the potential to accelerate innovation and to improve practice in how we deal with infectious disease threats.

The Nuclear Installations (Excepted Matter) Regulations 1978 (Statutory Instrument No. 1779, 4 December 1978)

International Nuclear Information System (INIS)

1979-01-01

These Regulations prescribe, for the purposes of the definition of 'excepted matter' in the Nuclear Installations Act 1965, certain specified quantities and forms of nuclear matter, and supersede the Nuclear Installations (excepted Matter) Regulations 1965. They bring the definition of excepted matter in those Regulations into line with the decisions of 27 October 1977 of the OECD Nuclear Energy Agency's Steering Committee excluding certain kinds and quantities of nuclear substances from the scope of the Paris Convention on Third Party Liability in the Field of Nuclear Energy. Compared with the 1965 Regulations, the principal changes in relation to consignments are that activity limits and packing requirements now take account of the most recent IAEA Regulations. (NEA) [fr

Strong cosmic censorship and the strong curvature singularities

International Nuclear Information System (INIS)

Krolak, A.

1987-01-01

Conditions are given under which any asymptotically simple and empty space-time that has a partial Cauchy surface with an asymptotically simple past is globally hyperbolic. It is shown that this result suggests that the Cauchy horizons of the type occurring in Reissner--Nordstroem and Kerr space-times are unstable. This in turn gives support for the validity of the strong cosmic censorship hypothesis

The impact of occurrence of exceptional solar events on mortality from diseases of the nervous system

Science.gov (United States)

Podolska, Katerina

2015-04-01

The aim of this conference paper is to analyse relationships between strong changes of solar, geomagnetic and ionospheric physical parameters, and mortality by medical cause of death from diagnosis group Diseases of the nervous system by ICD-10 WHO. The aggregated daily number of deaths of 6 largest individual causes of death of group VI. Diseases of the nervous system on the occurrence of exceptional solar and geomagnetic events is investigated. Analysis is performed for the period of the solar cycles No. 23 and 24 (years 1994-2013) in the Czech Republic. The correlation between the intensity of mortality from diseases Multiple sclerosis, Epilepsy, Cerebral palsy, Parkinson disease, Secondary parkinsonism and Alzheimer disease and the solar, geomagnetic and ionospheric physical parameters is examined using stochastic method of graphical models of conditional dependences. We study the daily number of deaths separately for both sexes at the age groups under 39 and 40+. Differences are found for maximum solar activity and during the ascending and descending epoch of the solar cycles.

Baroque Poetics and the Logic of Hispanic Exceptionalism

OpenAIRE

Young, Allen

2012-01-01

Baroque Poetics and the Logic of Hispanic Exceptionalismby Allen YoungIn this dissertation I study the how the baroque is used to understand aesthetic modernity in twentieth-century Spain and Latin America. My argument is that the baroque, in contemporary Hispanic and Latin American studies, functions as a myth of cultural exceptionalism, letting critics recast avant-garde and postmodern innovation as fidelity to a timeless essence or identity. That is, by viewing much contemporary Spanish-la...

Bodrum Strong Motion Network, Mugla, Turkey

Science.gov (United States)

Alcik, H. A.; Tanircan, G.; Korkmaz, A.

2015-12-01

The Gulf of Gökova is located in southwestern Turkey near the Aegean Sea and surrounded by Datça Peninsula to the south, the island of Kos to the west and Bodrum Peninsula to the north. The Bodrum peninsula with a population of one million in summer season is one of the most populated touristic centers of Turkey. This region is also surrounded by numerous active seismic entities such as Ula-Ören Fault Zone, Gökova Graben etc.. and demonstrates high seismic hazard. In the past, many destructive earthquakes have occurred in southwestern Turkey. One of the destructive historical earthquakes is 1493 Kos event (Mw=6.9) caused heavy damage in Bodrum. In the instrumental period seismic activity in the Gökova region includes the Ms>6.0 earthquakes of 23 April 1933 (Ms=6.4), 23 May 1941 (Ms=6.0), 13 December 1941 (Ms=6.5) events. Intense earthquake activity (Mw5+) occurred in Gulf of Gökova in August 2004 and January 2005. Considering the high seismicity and population of this region, a strong ground motion monitoring system stationed in dense settlements in the Bodrum Peninsula: Bodrum, Turgutreis, Yalıkavak, Çiftlik and Ortakent was deployed on June 2015. The network consists of 5 strong motion recorders, has been set up with the aim of monitoring of regional earthquakes, collecting accurate and reliable data for engineering and scientific research purposes, in particular to provide input for future earthquake rapid reporting and early warning implementation projects on urban environments in the Bodrum peninsula and the surrounding areas. In this poster presentation, we briefly introduce the Bodrum Network and discuss our future plans for further developments.

17 CFR 248.13 - Exception to opt out requirements for service providers and joint marketing.

Science.gov (United States)

2010-04-01

... include marketing of your own products or services or marketing of financial products or services offered... requirements for service providers and joint marketing. 248.13 Section 248.13 Commodity and Securities... Consumer Financial Information and Safeguarding Personal Information Exceptions § 248.13 Exception to opt...

77 FR 17456 - Buy American Exception Under the American Recovery and Reinvestment Act of 2009

Science.gov (United States)

2012-03-26

...-2138-01] Buy American Exception Under the American Recovery and Reinvestment Act of 2009 AGENCY... exception to the Buy American Provisions of the American Recovery and Reinvestment Act of 2009 (ARRA or... future years on electricity. The contract specifications required that all exterior photovoltaic...

Collective excitations in itinerant spiral magnets

International Nuclear Information System (INIS)

Kampf, A.P.

1996-01-01

We investigate the coupled charge and spin collective excitations in the spiral phases of the two-dimensional Hubbard model using a generalized random-phase approximation. Already for small doping the spin-wave excitations are strongly renormalized due to low-energy particle-hole excitations. Besides the three Goldstone modes of the spiral state the dynamical susceptibility reveals an extra zero mode for low doping and strong coupling values signaling an intrinsic instability of the homogeneous spiral state. In addition, near-zero modes are found in the vicinity of the spiral pitch wave number for out-of-plane spin fluctuations. Their origin is found to be the near degeneracy with staggered noncoplanar spiral states which, however, are not the lowest energy Hartree-Fock solutions among the homogeneous spiral states. copyright 1996 The American Physical Society

Alaska exceptionality hypothesis: Is Alaska wilderness really different?

Science.gov (United States)

Gregory Brown

2002-01-01

The common idiom of Alaska as “The Last Frontier” suggests that the relative remoteness and unsettled character of Alaska create a unique Alaskan identity, one that is both a “frontier” and the “last” of its kind. The frontier idiom portrays the place and people of Alaska as exceptional or different from the places and people who reside in the Lower Forty- Eight States...

Democracy, justice and state of exception: past present

Directory of Open Access Journals (Sweden)

Tásso Araújo Brito

2017-06-01

Full Text Available Violence against portions of society, disbelief in democratic institutions and agents of the state who inflict torture against those who are in their custody are elements that corrode the Brazilian democracy. Between the past of the military-civilian dictatorship and the current moment we realize how practices that have been considered exceptions have become rules that affect the life of many Brazilian citizens. The present paper investigates these political experiences to ask which democracy have we been living in.

The effect of regional variation of seismic wave attenuation on the strong ground motion from earthquakes

Energy Technology Data Exchange (ETDEWEB)

Chung, D H; Bernreuter, D L

1981-10-01

Attenuation is caused by geometric spreading and absorption. Geometric spreading is almost independent of crustal geology and physiographic region, but absorption depends strongly on crustal geology and the state of the earth's upper mantle. Except for very high frequency waves, absorption does not affect ground motion at distances less than about 25 to 50 km. Thus, in the near-field zone, the attenuation in the eastern United States is similar to that in the western United States. Beyond the near field, differences in ground motion can best be accounted for by differences in attenuation caused by differences in absorption. The stress drop of eastern earthquakes may be higher than for western earthquakes of the same seismic moment, which would affect the high-frequency spectral content. But we believe this factor is of much less significance than differences in absorption in explaining the differences in ground motion between the East and the West. The characteristics of strong ground motion in the conterminous United States are discussed in light of these considerations, and estimates are made of the epicentral ground motions in the central and eastern United States. (author)

Attribute-Based Signcryption: Signer Privacy, Strong Unforgeability and IND-CCA Security in Adaptive-Predicates Model (Extended Version

Directory of Open Access Journals (Sweden)

Tapas Pandit

2016-08-01

Full Text Available Attribute-Based Signcryption (ABSC is a natural extension of Attribute-Based Encryption (ABE and Attribute-Based Signature (ABS, where one can have the message confidentiality and authenticity together. Since the signer privacy is captured in security of ABS, it is quite natural to expect that the signer privacy will also be preserved in ABSC. In this paper, first we propose an ABSC scheme which is weak existential unforgeable and IND-CCA secure in adaptive-predicates models and, achieves signer privacy. Then, by applying strongly unforgeable one-time signature (OTS, the above scheme is lifted to an ABSC scheme to attain strong existential unforgeability in adaptive-predicates model. Both the ABSC schemes are constructed on common setup, i.e the public parameters and key are same for both the encryption and signature modules. Our first construction is in the flavor of CtE&S paradigm, except one extra component that will be computed using both signature components and ciphertext components. The second proposed construction follows a new paradigm (extension of CtE&S , we call it “Commit then Encrypt and Sign then Sign” (CtE&S . The last signature is generated using a strong OTS scheme. Since, the non-repudiation is achieved by CtE&S paradigm, our systems also achieve the same.

Microscopic origin of marginal Fermi-liquid in strongly correlated spin systems

International Nuclear Information System (INIS)

Protogenov, A.P.; Ryndyk, D.A.

1992-08-01

We consider the consequences of separation of spin and charge degrees of freedom in 2+1D strongly correlated spin systems. Self-consistent spin and charge motions induced by doping in sites of ground and dual lattices form such a spectrum of quasiparticles which together with the dispersionless character of the collective excitation spectrum and the chemical potential pinning in the band centre yield the necessary behavior of charge and spin polarizability to support the theory of marginal liquid formulated by C.M. Varma et al. (Phys. Rev. Lett. 63, 1996 (1989)). (author). 28 refs, 4 figs

Strong association between house characteristics and malaria vectors in Sri Lanka

DEFF Research Database (Denmark)

Konradsen, Flemming; Amerasinghe, Priyanie; van der Hoek, Wim

2003-01-01

. The type of house construction and the exact location of all houses were determined. In a multivariate analysis, distance of less than 750 meters between a house and the main vector-breeding site was strongly associated with the presence of Anopheles culicifacies in the house (odds ratio [OR] 4.8, 95......The objective of this study was to determine whether house characteristics could be used to further refine the residual insecticide-spraying program in Sri Lanka. Indoor-resting mosquito densities were estimated in 473 houses based on fortnightly collections over a two-and-a-half-year period...

Strong gravity and supersymmetry

International Nuclear Information System (INIS)

Chamseddine, Ali H.; Salam, A.; Strathdee, J.

1977-11-01

A supersymmetric theory is constructed for a strong f plus a weak g graviton, together with their accompanying massive gravitinos, by gaugin the gradel 0Sp(2,2,1)x 0Sp(2,2,1) structure. The mixing term between f and g fields, which makes the strong graviton massive, can be introduced through a spontaneous symmetry-breaking mechanism implemented in this note by constructing a non-linear realization of the symmetry group

PREFACE: Strongly correlated electron systems Strongly correlated electron systems

Science.gov (United States)

Saxena, Siddharth S.; Littlewood, P. B.

2012-07-01

This special section is dedicated to the Strongly Correlated Electron Systems Conference (SCES) 2011, which was held from 29 August-3 September 2011, in Cambridge, UK. SCES'2011 is dedicated to 100 years of superconductivity and covers a range of topics in the area of strongly correlated systems. The correlated electronic and magnetic materials featured include f-electron based heavy fermion intermetallics and d-electron based transition metal compounds. The selected papers derived from invited presentations seek to deepen our understanding of the rich physical phenomena that arise from correlation effects. The focus is on quantum phase transitions, non-Fermi liquid phenomena, quantum magnetism, unconventional superconductivity and metal-insulator transitions. Both experimental and theoretical work is presented. Based on fundamental advances in the understanding of electronic materials, much of 20th century materials physics was driven by miniaturisation and integration in the electronics industry to the current generation of nanometre scale devices. The achievements of this industry have brought unprecedented advances to society and well-being, and no doubt there is much further to go—note that this progress is founded on investments and studies in the fundamentals of condensed matter physics from more than 50 years ago. Nevertheless, the defining challenges for the 21st century will lie in the discovery in science, and deployment through engineering, of technologies that can deliver the scale needed to have an impact on the sustainability agenda. Thus the big developments in nanotechnology may lie not in the pursuit of yet smaller transistors, but in the design of new structures that can revolutionise the performance of solar cells, batteries, fuel cells, light-weight structural materials, refrigeration, water purification, etc. The science presented in the papers of this special section also highlights the underlying interest in energy-dense materials, which

Collectivity in composite fragment emission from relativistic heavy ion collisions

International Nuclear Information System (INIS)

Bock, R.; Claesson, G.; Gutbrod, H.H.; Kolb, B.; Schmidt, H.R.; Doss, K.G.R.; Harris, J.W.; Kristiansson, P.; Lefebres, F.; Poskanzer, A.M.; Ritter, H.G.; Teitelbaum, L.; Tincknell, M.; Weiss, S.; Ferguson, R.L.; Gavron, I.; Jacak, B.V.; Wilhelmy, J.; Gustafsson, H.A.; Kampert, K.H.; Siemiarczuk, T.; Wieman, H.

1987-05-01

Composite fragments of 2< Z<10 have been measured in the Plastic Ball Spectrometer in 200 MeV/nucleon Au+Au and Au+Fe collisions. Strong azimuthal alignment of the fragments reveal the collective behaviour of the reaction. (orig.)

76 FR 67363 - Extending Religious and Family Member FICA and FUTA Exceptions to Disregarded Entities

Science.gov (United States)

2011-11-01

... unless the requisite family relationship exists between the employee and each of the partners comprising... the exceptions from employment that apply because of the existence of a family relationship between...(c). The inability of these entities to benefit from the exceptions for family employees and members...

12 CFR 716.13 - Exception to opt out requirements for service providers and joint marketing.

Science.gov (United States)

2010-01-01

... section may include marketing of your own products or services or marketing of financial products or... providers and joint marketing. 716.13 Section 716.13 Banks and Banking NATIONAL CREDIT UNION ADMINISTRATION REGULATIONS AFFECTING CREDIT UNIONS PRIVACY OF CONSUMER FINANCIAL INFORMATION Exceptions § 716.13 Exception to...

The heritability of aptitude and exceptional talent across different domains in adolescents and young adults

NARCIS (Netherlands)

Vinkhuyzen, A.A.E.; van der Sluis, S.; Posthuma, D.; Boomsma, D.I.

2009-01-01

The origin of individual differences in aptitude, defined as a domain-specific skill within the normal ability range, and talent, defined as a domain specific skill of exceptional quality, is under debate. The nature of the variation in aptitudes and exceptional talents across different domains was

Sound Control-Flow Graph Extraction for Java Programs with Exceptions

NARCIS (Netherlands)

Amighi, A.; de Carvalho Gomes, Pedro; Gurov, Dilian; Huisman, Marieke; Eleftherakis, George; Hinchey, Mike; Holcombe, Mike

2012-01-01

We present an algorithm to extract control-flow graphs from Java bytecode, considering exceptional flows. We then establish its correctness: the behavior of the extracted graphs is shown to be a sound over-approximation of the behavior of the original programs. Thus, any temporal safety property

Provably Correct Control-Flow Graphs from Java Programs with Exceptions

NARCIS (Netherlands)

Amighi, A.; de Carvalho Gomes, Pedro; Huisman, Marieke

2011-01-01

We present an algorithm to extract flow graphs from Java bytecode, focusing on exceptional control flows. We prove its correctness, meaning that the behaviour of the extracted control-flow graph is an over-approximation of the behaviour of the original program. Thus any safety property that holds

76 FR 70975 - Petition Requesting Exception From Lead Content Limits

Science.gov (United States)

2011-11-16

... information provided, to http://www.regulations.gov . Do not submit confidential business information, trade... of divisions: Scale Models and Dyersville Die Cast (``petitioner''), submitted a petition requesting an exception from the lead content limit of 100 ppm under section 101(b) of the CPSIA for its die...

Feeling Abnormal: Simulation of Deviancy in Abnormal and Exceptionality Courses.

Science.gov (United States)

Fernald, Charles D.

1980-01-01

Describes activity in which student in abnormal psychology and psychology of exceptional children classes personally experience being judged abnormal. The experience allows the students to remember relevant research, become sensitized to the feelings of individuals classified as deviant, and use caution in classifying individuals as abnormal.…

Collective attraction of equal-sign charged grains in plasmas

International Nuclear Information System (INIS)

Tsytovich, V.N.; Morfill, G.E.

2002-01-01

It is shown that, in the presence of many grains embedded in a plasma, any two grains with the same charge sign can attract each other. The attraction is caused by collective effects. Both the strength of attraction and the distance at which the attraction is located depend on the average dust density. In the limit of strong collective interaction, the potential energy of interaction is found to be equal to the Coulomb interaction with an amplitude periodically changing its sign at a sequence of interdust distances. The condition for collective effects to dominate lead to a threshold condition that is fulfilled in existing experiments. The effect of collective attraction is applied for the physical interpretation of the observed phenomenon of the formation of dust crystals in laboratory experiments

When nursing takes ownership of financial outcomes: achieving exceptional financial performance through leadership, strategy, and execution.

Science.gov (United States)

Goetz, Kristopher; Janney, Michelle; Ramsey, Kristin

2011-01-01

With nurses and unlicensed supportive personnel composing the greatest percentage of the workforce at any hospital, it is not surprising nursing leadership plays an increasing role in the attainment of financial goals. The nursing leadership team at one academic medical center reduced costs by more than $10 million over 4 years while outperforming national benchmarks on nurse-sensitive quality indicators. The most critical success factor in attaining exceptional financial performance is a personal and collective accountability to achieving outcomes. Whether it is financial improvement, advancing patient safety, or ensuring a highly engaged workforce, success will not be attained without thoughtful, focused leadership. The accountability model ensures there is a culture built around financial performance where nurses and leaders think and act, on a daily basis, in a manner necessary to understand opportunities, find answers, and overcome obstacles. While structures, processes, and tools may serve as the means to achieve a target, it is leadership's responsibility to set the right goal and motivate others.

Strong Ideal Convergence in Probabilistic Metric Spaces

Indian Academy of Sciences (India)

In the present paper we introduce the concepts of strongly ideal convergent sequence and strong ideal Cauchy sequence in a probabilistic metric (PM) space endowed with the strong topology, and establish some basic facts. Next, we define the strong ideal limit points and the strong ideal cluster points of a sequence in this ...

Engaging Military Fathers in a Reflective Parenting Program: Lessons from Strong Families Strong Forces

Science.gov (United States)

DeVoe, Ellen R.; Paris, Ruth

2015-01-01

Through Strong Families Strong Forces, a reflective parenting program for military families with young children, we were privileged to work with contemporary military fathers who served in the post-9/11 conflicts in Afghanistan and Iraq. Due to this work, the authors gained valuable insight into the complexity of fathering during wartime, the…

Bitcoin Meets Strong Consistency

OpenAIRE

Decker, Christian; Seidel, Jochen; Wattenhofer, Roger

2014-01-01

The Bitcoin system only provides eventual consistency. For everyday life, the time to confirm a Bitcoin transaction is prohibitively slow. In this paper we propose a new system, built on the Bitcoin blockchain, which enables strong consistency. Our system, PeerCensus, acts as a certification authority, manages peer identities in a peer-to-peer network, and ultimately enhances Bitcoin and similar systems with strong consistency. Our extensive analysis shows that PeerCensus is in a secure state...

Strong exchange and magnetic blocking in N₂³⁻-radical-bridged lanthanide complexes.

Science.gov (United States)

Rinehart, Jeffrey D; Fang, Ming; Evans, William J; Long, Jeffrey R

2011-05-22

Single-molecule magnets approach the ultimate size limit for spin-based devices. These complexes can retain spin information over long periods of time at low temperature, suggesting possible applications in high-density information storage, quantum computing and spintronics. Notably, the success of most such applications hinges upon raising the inherent molecular spin-inversion barrier. Although recent advances have shown the viability of lanthanide-containing complexes in generating large barriers, weak or non-existent magnetic exchange coupling allows fast relaxation pathways that mitigate the full potential of these species. Here, we show that the diffuse spin of an N(2)(3-) radical bridge can lead to exceptionally strong magnetic exchange in dinuclear Ln(III) (Ln = Gd, Dy) complexes. The Gd(III) congener exhibits the strongest magnetic coupling yet observed for that ion, while incorporation of the high-anisotropy Dy(III) ion gives rise to a molecule with a record magnetic blocking temperature of 8.3 K at a sweep rate of 0.08 T s(-1).

Strong Statistical Convergence in Probabilistic Metric Spaces

OpenAIRE

Şençimen, Celaleddin; Pehlivan, Serpil

2008-01-01

In this article, we introduce the concepts of strongly statistically convergent sequence and strong statistically Cauchy sequence in a probabilistic metric (PM) space endowed with the strong topology, and establish some basic facts. Next, we define the strong statistical limit points and the strong statistical cluster points of a sequence in this space and investigate the relations between these concepts.

Divestment prevails over the green paradox when anticipating strong future climate policies

Science.gov (United States)

Bauer, Nico; McGlade, Christophe; Hilaire, Jérôme; Ekins, Paul

2018-01-01

Fossil fuel market dynamics will have a significant impact on the effectiveness of climate policies1. Both fossil fuel owners and investors in fossil fuel infrastructure are sensitive to climate policies that threaten their natural resource endowments and production capacities2-4, which will consequently affect their near-term behaviour. Although weak in near-term policy commitments5,6, the Paris Agreement on climate7 signalled strong ambitions in climate change stabilization. Many studies emphasize that the 2 °C target can still be achieved even if strong climate policies are delayed until 20308-10. However, sudden implementation will have severe consequences for fossil fuel markets and beyond and these studies ignore the anticipation effects of owners and investors. Here we use two energy-economy models to study the collective influence of the two central but opposing anticipation arguments, the green paradox11 and the divestment effect12, which have, to date, been discussed only separately. For a wide range of future climate policies, we find that anticipation effects, on balance, reduce CO2 emissions during the implementation lag. This is because of strong divestment in coal power plants starting ten years ahead of policy implementation. The green paradox effect is identified, but is small under reasonable assumptions.

Soft-Bodied Fossils Are Not Simply Rotten Carcasses - Toward a Holistic Understanding of Exceptional Fossil Preservation: Exceptional Fossil Preservation Is Complex and Involves the Interplay of Numerous Biological and Geological Processes.

Science.gov (United States)

Parry, Luke A; Smithwick, Fiann; Nordén, Klara K; Saitta, Evan T; Lozano-Fernandez, Jesus; Tanner, Alastair R; Caron, Jean-Bernard; Edgecombe, Gregory D; Briggs, Derek E G; Vinther, Jakob

2018-01-01

Exceptionally preserved fossils are the product of complex interplays of biological and geological processes including burial, autolysis and microbial decay, authigenic mineralization, diagenesis, metamorphism, and finally weathering and exhumation. Determining which tissues are preserved and how biases affect their preservation pathways is important for interpreting fossils in phylogenetic, ecological, and evolutionary frameworks. Although laboratory decay experiments reveal important aspects of fossilization, applying the results directly to the interpretation of exceptionally preserved fossils may overlook the impact of other key processes that remove or preserve morphological information. Investigations of fossils preserving non-biomineralized tissues suggest that certain structures that are decay resistant (e.g., the notochord) are rarely preserved (even where carbonaceous components survive), and decay-prone structures (e.g., nervous systems) can fossilize, albeit rarely. As we review here, decay resistance is an imperfect indicator of fossilization potential, and a suite of biological and geological processes account for the features preserved in exceptional fossils. © 2017 The Authors. BioEssays Published by WILEY Periodicals, Inc.

Unveiling Exception Handling Bug Hazards in Android Based on GitHub and Google Code Issues

NARCIS (Netherlands)

Coelho, R.; Almeida, L.; Gousios, G.; Van Deursen, A.

2015-01-01

This paper reports on a study mining the exception stack traces included in 159,048 issues reported on Android projects hosted in GitHub (482 projects) and Google Code (157 projects). The goal of this study is to investigate whether stack trace information can reveal bug hazards related to exception

Strongly coupled models at the LHC

International Nuclear Information System (INIS)

Vries, Maikel de

2014-10-01

In this thesis strongly coupled models where the Higgs boson is composite are discussed. These models provide an explanation for the origin of electroweak symmetry breaking including a solution for the hierarchy problem. Strongly coupled models provide an alternative to the weakly coupled supersymmetric extensions of the Standard Model and lead to different and interesting phenomenology at the Large Hadron Collider (LHC). This thesis discusses two particular strongly coupled models, a composite Higgs model with partial compositeness and the Littlest Higgs model with T-parity - a composite model with collective symmetry breaking. The phenomenology relevant for the LHC is covered and the applicability of effective operators for these types of strongly coupled models is explored. First, a composite Higgs model with partial compositeness is discussed. In this model right-handed light quarks could be significantly composite, yet compatible with experimental searches at the LHC and precision tests on Standard Model couplings. In these scenarios, which are motivated by flavour physics, large cross sections for the production of new resonances coupling to light quarks are expected. Experimental signatures of right-handed compositeness at the LHC are studied, and constraints on the parameter space of these models are derived using recent results by ATLAS and CMS. Furthermore, dedicated searches for multi-jet signals at the LHC are proposed which could significantly improve the sensitivity to signatures of right-handed compositeness. The Littlest Higgs model with T-parity, providing an attractive solution to the fine-tuning problem, is discussed next. This solution is only natural if its intrinsic symmetry breaking scale f is relatively close to the electroweak scale. The constraints from the latest results of the 8 TeV run at the LHC are examined. The model's parameter space is being excluded based on a combination of electroweak precision observables, Higgs precision

Fast egg collection method greatly improves randomness of egg sampling in Drosophila melanogaster

DEFF Research Database (Denmark)

Schou, Mads Fristrup

2013-01-01

When obtaining samples for population genetic studies, it is essential that the sampling is random. For Drosophila, one of the crucial steps in sampling experimental flies is the collection of eggs. Here an egg collection method is presented, which randomizes the eggs in a water column...... and diminishes environmental variance. This method was compared with a traditional egg collection method where eggs are collected directly from the medium. Within each method the observed and expected standard deviations of egg-to-adult viability were compared, whereby the difference in the randomness...... and to obtain a representative collection of genotypes, the method presented here is strongly recommended when collecting eggs from Drosophila....

Can mobile phones used in strong motion seismology?

Science.gov (United States)

D'Alessandro, Antonino; D'Anna, Giuseppe

2013-04-01

Micro Electro-Mechanical Systems (MEMS) accelerometers are electromechanical devices able to measure static or dynamic accelerations. In the 1990s MEMS accelerometers revolutionized the automotive-airbag system industry and are currently widely used in laptops, game controllers and mobile phones. Nowadays MEMS accelerometers seems provide adequate sensitivity, noise level and dynamic range to be applicable to earthquake strong motion acquisition. The current use of 3 axes MEMS accelerometers in mobile phone maybe provide a new means to easy increase the number of observations when a strong earthquake occurs. However, before utilize the signals recorded by a mobile phone equipped with a 3 axes MEMS accelerometer for any scientific porpoise, it is fundamental to verify that the signal collected provide reliable records of ground motion. For this reason we have investigated the suitability of the iPhone 5 mobile phone (one of the most popular mobile phone in the world) for strong motion acquisition. It is provided by several MEMS devise like a three-axis gyroscope, a three-axis electronic compass and a the LIS331DLH three-axis accelerometer. The LIS331DLH sensor is a low-cost high performance three axes linear accelerometer, with 16 bit digital output, produced by STMicroelectronics Inc. We have tested the LIS331DLH MEMS accelerometer using a vibrating table and the EpiSensor FBA ES-T as reference sensor. In our experiments the reference sensor was rigidly co-mounted with the LIS331DHL MEMS sensor on the vibrating table. We assessment the MEMS accelerometer in the frequency range 0.2-20 Hz, typical range of interesting in strong motion seismology and earthquake engineering. We generate both constant and damped sine waves with central frequency starting from 0.2 Hz until 20 Hz with step of 0.2 Hz. For each frequency analyzed we generate sine waves with mean amplitude 50, 100, 200, 400, 800 and 1600 mg0. For damped sine waves we generate waveforms with initial amplitude

12 CFR 219.4 - Exceptions.

Science.gov (United States)

2010-01-01

... financial records or information related to: (a) Security interests, bankruptcy claims, debt collection. Any... loan insurance program. (c) Nonidentifiable information. Financial records that are not identified with.... (f) Federally required reports. Financial records required to be reported in accordance with any...

Role of Strong versus Weak Networks in Small Business Growth in an Emerging Economy

Directory of Open Access Journals (Sweden)

M. Kamil Kozan

2014-02-01

Full Text Available The study tests whether strong rather than weak ties account for small business growth in Turkey. Data were collected by means of a questionnaire filled out by the owners of small firms operating in four cities. Growth is comprised of two main areas, production expansion and knowledge acquisition. Results show that strong ties are positively related to both types of growth. In contrast, loose ties have no effect on small business growth in either area. This finding is attributed to the influence of the collectivistic nature of the mainstream Turkish culture, where owners of small businesses are likely to rely on in-groups rather than out-groups for advice and for financial support. Implications of relative absence of weak ties for small business growth and innovation in emerging economies are discussed. The findings suggest that culture should be included as a contingency variable in future studies of network strength and growth relationship. The paper also discusses the possible moderating role of affective and cognition-based trust in the relation of strong and weak ties to small business growth.

Leading Change: How Boards and Presidents Build Exceptional Academic Institutions

Science.gov (United States)

MacTaggart, Terrence

2011-01-01

In a time of transformation in higher education, "Leading Change: How Boards and Presidents Build Exceptional Institutions" fills a significant void in leadership literature and focuses on the changing level of board engagement. This book examines 18 institutions, across the spectrum of higher education, at which the board played a…

Numerical evaluation of one-loop diagrams near exceptional momentum configurations

International Nuclear Information System (INIS)

Giele, Walter T.; Zanderighi, Giulia; Glover, E.W.N.

2004-01-01

One problem which plagues the numerical evaluation of one-loop Feynman diagrams using recursive integration by part relations is a numerical instability near exceptional momentum configurations. In this contribution we will discuss a generic solution to this problem. As an example we consider the case of forward light-by-light scattering

12 CFR 222.21 - Affiliate marketing opt-out and exceptions.

Science.gov (United States)

2010-01-01

... solicitation for marketing purposes to a consumer with whom you have a pre-existing business relationship; (2... 12 Banks and Banking 3 2010-01-01 2010-01-01 false Affiliate marketing opt-out and exceptions. 222... FEDERAL RESERVE SYSTEM FAIR CREDIT REPORTING (REGULATION V) Affiliate Marketing § 222.21 Affiliate...

OBSERVATION OF STRONG - STRONG AND OTHER BEAM - BEAM EFFECTS IN RHIC

International Nuclear Information System (INIS)

FISCHER, W.; BLASKIEWICZ, M.; BRENNAN, J.M.; CAMERON, P.; CONNOLLY, R.; MONTAG, C.; PEGGS, S.; PILAT, F.; PTITSYN, V.; TEPIKIAN, S.; TRBOJEVIC, D.; VAN ZEIJTS, J.

2003-01-01

RHIC is currently the only hadron collider in which strong-strong beam-beam effects can be seen. For the first time, coherent beam-beam modes were observed in a bunched beam hadron collider. Other beam-beam effects in RHIC were observed in operation and in dedicated experiments with gold ions, deuterons and protons. Observations include measurements of beam-beam induced tune shifts, lifetime and emittance growth measurements with and without beam-beam interaction, and background rates as a function of tunes. During ramps unequal radio frequencies in the two rings cause the crossing points to move longitudinally. Thus bunches experience beam-beam interactions only in intervals and the tunes are modulated. In this article we summarize the most important beam-beam observations made so far

Three Justifications for Effectively Teaching Exceptional Babies to Third Grade with Respect to Their Characteristics, an Effective Curricula, and an Exceptional-Research Data Base

Science.gov (United States)

Jaramillo, James Anthony Montrose

2013-01-01

Both Pre-K and K-3rd grade exceptional or talented children/students not only want but need more of an "accommodative" ambiance where their senses are given novel multiple-intelligences data so that they can continue to intellectually grow with respect to Piaget, Erickson, and Vygotsky's developmental schemes. Thus, to do this requires us to…

Seismic switch for strong motion measurement

Science.gov (United States)

Harben, P.E.; Rodgers, P.W.; Ewert, D.W.

1995-05-30

A seismic switching device is described that has an input signal from an existing microseismic station seismometer and a signal from a strong motion measuring instrument. The seismic switch monitors the signal level of the strong motion instrument and passes the seismometer signal to the station data telemetry and recording systems. When the strong motion instrument signal level exceeds a user set threshold level, the seismometer signal is switched out and the strong motion signal is passed to the telemetry system. The amount of time the strong motion signal is passed before switching back to the seismometer signal is user controlled between 1 and 15 seconds. If the threshold level is exceeded during a switch time period, the length of time is extended from that instant by one user set time period. 11 figs.

Feasible, Efficient and Necessary, without Exception - Working with Sex Workers Interrupts HIV/STI Transmission and Brings Treatment to Many in Need.

Science.gov (United States)

Steen, Richard; Wheeler, Tisha; Gorgens, Marelize; Mziray, Elizabeth; Dallabetta, Gina

2015-01-01

High rates of partner change in sex work-whether in professional, 'transactional' or other context-disproportionately drive transmission of HIV and other sexually transmitted infections. Several countries in Asia have demonstrated that reducing transmission in sex work can reverse established epidemics among sex workers, their clients and the general population. Experience and emerging research from Africa reaffirms unprotected sex work to be a key driver of sexual transmission in different contexts and regardless of stage or classification of HIV epidemic. This validation of the epidemiology behind sexual transmission carries an urgent imperative to realign prevention resources and scale up effective targeted interventions in sex work settings, and, given declining HIV resources, to do so efficiently. Eighteen articles in this issue highlight the importance and feasibility of such interventions under four themes: 1) epidemiology, data needs and modelling of sex work in generalised epidemics; 2) implementation science addressing practical aspects of intervention scale-up; 3) community mobilisation and 4) the treatment cascade for sex workers living with HIV. Decades of empirical evidence, extended by analyses in this collection, argue that protecting sex work is, without exception, feasible and necessary for controlling HIV/STI epidemics. In addition, the disproportionate burden of HIV borne by sex workers calls for facilitated access to ART, care and support. The imperative for Africa is rapid scale-up of targeted prevention and treatment, facilitated by policies and action to improve conditions where sex work takes place. The opportunity is a wealth of accumulated experience working with sex workers in diverse settings, which can be tapped to make up for lost time. Elsewhere, even in countries with strong interventions and services for sex workers, an emerging challenge is to find ways to sustain them in the face of declining global resources.

Collective two-phonon states in deformed nuclei

International Nuclear Information System (INIS)

Solov'ev, V.G.; Shirikova, N.Y.

1982-01-01

The Pauli principle in the two-phonon components of the wave functions is taken into account within the framework of the quasiparticle-phonon model of the nucleus with phonon operators depending on the sign of the projection of the angular momentum. The centroid energies of collective two-phonon states in even-even deformed nuclei are calculated and it is shown that the inclusion of the Pauli principle shifts them by 1--3 MeV to higher energies. The shifts of the three-phonon poles due to the inclusion of the Pauli principle in the three-phonon components of the wave functions are calculated. Strong fragmentation of collective two-phonon states whose energy centroids are 3--5 MeV should be expected. It is concluded that collective two-phonon states need not exist in deformed nuclei. The situation with the 168 Er nucleus and the Th and U isotopes is analyzed

Digitization and valorization through the INIS database of an exceptional stock of grey literature documents: the 'historical' CEA reports (1948-1969)

International Nuclear Information System (INIS)

Surmont, J.; Brulet, C.; Brulet, M.; Pourny, M.; Constant, A.; Guille, N.; Le Blanc, A.; Mouffron, O.; Anguise, P.; Jouve, J.J.

2008-01-01

This poster, prepared for the sixth edition of the meetings of scientific and technical information professionals (RPIST, Nancy (France)), presents the joint CEA/IAEA project of digitization of the collection of reports published by the French atomic energy commission (CEA) between 1948 and 1969. This exceptional stock of about 2760 grey literature monographs covers the first 20 years of researches carried out at the CEA and has been entered in the INIS database with a link to the full text. The poster describes the different steps of the project from the selection of the documents, their digitization, and the preparation of the corresponding inputs. The INIS database and its general content are briefly presented. (J.S.)

Break-glass handling exceptional situations in access control

CERN Document Server

Petritsch, Helmut

2014-01-01

Helmut Petritsch describes the first holistic approach to Break-Glass which covers the whole life-cycle: from access control modeling (pre-access), to logging the security-relevant system state during Break-Glass accesses (at-access), and the automated analysis of Break-Glass accesses (post-access). Break-Glass allows users to override security restrictions in exceptional situations. While several Break-Glass models specific to given access control models have already been discussed in research (e.g., extending RBAC with Break-Glass), the author introduces a generic Break-Glass model. The pres

12 CFR 334.21 - Affiliate marketing opt-out and exceptions.

Science.gov (United States)

2010-01-01

... solicitation for marketing purposes to a consumer with whom you have a pre-existing business relationship; (2... 12 Banks and Banking 4 2010-01-01 2010-01-01 false Affiliate marketing opt-out and exceptions. 334... OF GENERAL POLICY FAIR CREDIT REPORTING Affiliate Marketing § 334.21 Affiliate marketing opt-out and...

The collective Lamb shift in nuclear γ-ray superradiance

International Nuclear Information System (INIS)

Röhlsberger, Ralf

2012-01-01

The electromagnetic transitions of Mössbauer nuclei provide almost ideal two-level systems to transfer quantum optical concepts into the regime of hard x-rays. If many identical atoms collectively interact with a resonant radiation field, one observes (quantum) optical properties that are strongly different from those of a single atom. The most prominent effect is the broadening of the resonance line known as collective enhancement, resulting from multiple scattering of real photons within the atomic ensemble. On the other hand, the exchange of virtual photons within the ensemble leads to a tiny energy shift of the resonance line, the collective Lamb shift, that remained experimentally elusive for a long time after its prediction. Here we illustrate how highly brilliant synchrotron radiation allows one to prepare superradiant states of excited Mössbauer nuclei, an important condition for observation of the collective Lamb shift.

75 FR 55630 - Agency Information Collection Activities; Extension of Currently Approved Collection...

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2010-09-13

... 9 a.m. and 5 p.m., e.t., Monday through Friday, except Federal Holidays. Fax: 1-202-493-2251. Each... p.m., Monday through Friday, except Federal holidays. The DMS is available 24 hours each day, 365... Commonwealth of the Northern Mariana Islands and the U.S. Virgin Islands. Frequency: Annually. Estimated...

New strong motion network in Georgia: basis for specifying seismic hazard

Science.gov (United States)

Kvavadze, N.; Tsereteli, N. S.

2017-12-01

Risk created by hazardous natural events is closely related to sustainable development of the society. Global observations have confirmed tendency of growing losses resulting from natural disasters, one of the most dangerous and destructive if which are earthquakes. Georgia is located in seismically active region. So, it is imperative to evaluate probabilistic seismic hazard and seismic risk with proper accuracy. National network of Georgia includes 35 station all of which are seismometers. There are significant gaps in strong motion recordings, which essential for seismic hazard assessment. To gather more accelerometer recordings, we have built a strong motion network distributed on the territory of Georgia. The network includes 6 stations for now, with Basalt 4x datalogger and strong motion sensor Episensor ES-T. For each site, Vs30 and soil resonance frequencies have been measured. Since all but one station (Tabakhmelam near Tbilisi), are located far from power and internet lines special system was created for instrument operation. Solar power is used to supply the system with electricity and GSM/LTE modems for internet access. VPN tunnel was set up using Raspberry pi, for two-way communication with stations. Tabakhmela station is located on grounds of Ionosphere Observatory, TSU and is used as a hub for the network. This location also includes a broadband seismometer and VLF electromagnetic waves observation antenna, for possible earthquake precursor studies. On server, located in Tabakhmela, the continues data is collected from all the stations, for later use. The recordings later will be used in different seismological and engineering problems, namely selecting and creating GMPE model for Caucasus, for probabilistic seismic hazard and seismic risk evaluation. These stations are a start and in the future expansion of strong motion network is planned. Along with this, electromagnetic wave observations will continue and additional antennas will be implemented

Exceptional quantum subgroups for the rank two Lie algebras B2 and G2

CERN Document Server

Coquereaux, R.; Tahri, E.H.

2010-01-01

Exceptional modular invariants for the Lie algebras B2 (at levels 2,3,7,12) and G2 (at levels 3,4) can be obtained from conformal embeddings. We determine the associated alge bras of quantum symmetries and discover or recover, as a by-product, the graphs describing exceptional quantum subgroups of type B2 or G2 which encode their module structure over the associated fusion category. Global dimensions are given.

Strong chromatic microlensing in HE0047–1756 and SDSS1155+6346

Energy Technology Data Exchange (ETDEWEB)

Rojas, K.; Motta, V. [Instituto de Física y Astronomía, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Playa Ancha, Valparaíso 2360102 (Chile); Mediavilla, E. [Instituto de Astrofísica de Canarias, Avda. Vía Lactea s/n, La Laguna, E-38200 Tenerife (Spain); Falco, E. [Whipple Observatory, Smithsonian Institution, 670 Mt. Hopkins Road, PO Box 6369, Amado, AZ 85645 (United States); Jiménez-Vicente, J. [Departamento de Física Teórica y del Cosmos, Universidad de Granada, Campus de Fuentenueva, E-18071 Granada (Spain); Muñoz, J. A., E-mail: karina.rojas@uv.cl, E-mail: veronica.motta@uv.cl, E-mail: emg@iac.es, E-mail: falco@cfa.harvard.edu, E-mail: jjimenez@ugr.es, E-mail: jmunoz@uv.es [Departamento de Astronomía y Astrofísica, Universidad de Valencia, Burjassot, E-46100 Valencia (Spain)

2014-12-10

We use spectra of the double-lensed quasars HE0047–1756 and SDSS1155+6346 to study their unresolved structure through the impact of microlensing. There is no significant evidence of microlensing in the emission line profiles except for the Lyα line of SDSS1155+6346, which shows strong differences in the shapes for images A and B. However, the continuum of the B image spectrum in SDSS1155+6346 is strongly contaminated by the lens galaxy, and these differences should be considered with caution. Using the flux ratios of the emission lines for image pairs as a baseline to remove macro-magnification and extinction, we have detected strong chromatic microlensing in the continuum measured by CASTLES (www.cfa.harvard.edu/castles/) in both lens systems, with amplitudes 0.09(λ16000) ≲ |Δm| ≲ 0.8(λ5439) for HE0047–1756, and 0.2(λ16000) ≲ |Δm| ≲ 0.8(λ5439) for SDSS1155+6346. Using magnification maps to simulate microlensing and modeling the accretion disk as a Gaussian source (I ∝ exp(–R {sup 2}/2r {sub s}{sup 2})) of size r {sub s} ∝ λ {sup p}, we find r {sub s} = 2.5{sub −1.4}{sup +3.0} √(M/0.3M{sub ⊙}) lt-day and p = 2.3 ± 0.8 at the rest frame for λ = 2045 for HE0047–1756 (log prior) and r {sub s} = 5.5{sub −3.3}{sup +8.2} √(M/0.3M{sub ⊙}) lt-day and p = 1.5 ± 0.6 at the rest frame of λ = 1398 for SDSS1155+6346 (log prior). Contrary to other studied lens systems, the chromaticity detected in HE0047–1756 and SDSS1155+6346 is large enough to fulfill the thin disk prediction. The inferred sizes, however, are very large compared to the predictions of this model, especially in the case of SDSS1155+6346.

Short proofs of strong normalization

OpenAIRE

Wojdyga, Aleksander

2008-01-01

This paper presents simple, syntactic strong normalization proofs for the simply-typed lambda-calculus and the polymorphic lambda-calculus (system F) with the full set of logical connectives, and all the permutative reductions. The normalization proofs use translations of terms and types to systems, for which strong normalization property is known.

Architecting Fault Tolerance with Exception Handling: Verification and Validation

Institute of Scientific and Technical Information of China (English)

Patrick H. S. Brito; Rogério de Lemos; Cecília M. F. Rubira; Eliane Martins

2009-01-01

When building dependable systems by integrating untrusted software components that were not originally designed to interact with each other, it is likely the occurrence of architectural mismatches related to assumptions in their failure behaviour. These mismatches, if not prevented during system design, have to be tolerated during runtime. This paper presents an architectural abstraction based on exception handling for structuring fault-tolerant software systems.This abstraction comprises several components and connectors that promote an existing untrusted software element into an idealised fault-tolerant architectural element. Moreover, it is considered in the context of a rigorous software development approach based on formal methods for representing the structure and behaviour of the software architecture. The proposed approach relies on a formal specification and verification for analysing exception propagation, and verifying important dependability properties, such as deadlock freedom, and scenarios of architectural reconfiguration. The formal models are automatically generated using model transformation from UML diagrams: component diagram representing the system structure, and sequence diagrams representing the system behaviour. Finally, the formal models are also used for generating unit and integration test cases that are used for assessing the correctness of the source code. The feasibility of the proposed architectural approach was evaluated on an embedded critical case study.

Characterizing interactions in online social networks during exceptional events

Science.gov (United States)

Omodei, Elisa; De Domenico, Manlio; Arenas, Alex

2015-08-01

Nowadays, millions of people interact on a daily basis on online social media like Facebook and Twitter, where they share and discuss information about a wide variety of topics. In this paper, we focus on a specific online social network, Twitter, and we analyze multiple datasets each one consisting of individuals' online activity before, during and after an exceptional event in terms of volume of the communications registered. We consider important events that occurred in different arenas that range from policy to culture or science. For each dataset, the users' online activities are modeled by a multilayer network in which each layer conveys a different kind of interaction, specifically: retweeting, mentioning and replying. This representation allows us to unveil that these distinct types of interaction produce networks with different statistical properties, in particular concerning the degree distribution and the clustering structure. These results suggests that models of online activity cannot discard the information carried by this multilayer representation of the system, and should account for the different processes generated by the different kinds of interactions. Secondly, our analysis unveils the presence of statistical regularities among the different events, suggesting that the non-trivial topological patterns that we observe may represent universal features of the social dynamics on online social networks during exceptional events.

Statistics and dynamics of strongly collective nuclear processes

International Nuclear Information System (INIS)

Blocki, J.

1985-01-01

A short introduction to the published and not yet published papers is presented. Two methods of the dynamical calculations - a classical and a selfconsistent quantum mechanical (TDHF) one are discussed. The most interesting results are presented. All the limitations in the use of both methods are also given. 26 refs. (author)

Breaking Down Barriers--Building Strong Foundations: Parents and Teachers of Exceptional Students Working Together.

Science.gov (United States)

Spinelli, Cathleen G.

1999-01-01

Provides guidelines for fostering positive teacher-parent relationships. Discusses recent legislative mandates, how parent/teacher relationships are affected by current policy issues promoted by professional education organizations, and methods of constructive communication. Parents and teachers of students with learning disabilities are urged to…

On the strong metric dimension of generalized butterfly graph, starbarbell graph, and {C}_{m}\\odot {P}_{n} graph

Science.gov (United States)

Yunia Mayasari, Ratih; Atmojo Kusmayadi, Tri

2018-04-01

Let G be a connected graph with vertex set V(G) and edge set E(G). For every pair of vertices u,v\\in V(G), the interval I[u, v] between u and v to be the collection of all vertices that belong to some shortest u ‑ v path. A vertex s\\in V(G) strongly resolves two vertices u and v if u belongs to a shortest v ‑ s path or v belongs to a shortest u ‑ s path. A vertex set S of G is a strong resolving set of G if every two distinct vertices of G are strongly resolved by some vertex of S. The strong metric basis of G is a strong resolving set with minimal cardinality. The strong metric dimension sdim(G) of a graph G is defined as the cardinality of strong metric basis. In this paper we determine the strong metric dimension of a generalized butterfly graph, starbarbell graph, and {C}mȯ {P}n graph. We obtain the strong metric dimension of generalized butterfly graph is sdim(BFn ) = 2n ‑ 2. The strong metric dimension of starbarbell graph is sdim(S{B}{m1,{m}2,\\ldots,{m}n})={\\sum }i=1n({m}i-1)-1. The strong metric dimension of {C}mȯ {P}n graph are sdim({C}mȯ {P}n)=2m-1 for m > 3 and n = 2, and sdim({C}mȯ {P}n)=2m-2 for m > 3 and n > 2.

The theory of collective motion probed by light

Energy Technology Data Exchange (ETDEWEB)

Amusia, M.Ya. [The Blackett Laboratory, Imperial College of Science, Technology and Medicine, London (United Kingdom); Racah Institute of Physics, Hebrew University, Jerusalem (Israel); Connerade, J.-P. [Racah Institute of Physics, Hebrew University, Jerusalem (Israel)

2000-01-01

A review of collective phenomena in atomic and quasi-atomic systems is presented. The fundamental unity of the subject is stressed by appealing to a simple conceptual scheme, namely the Landau theory of wave propagation applied to a Fermi fluid. Collective giant resonances in nuclei, atoms, metallic clusters and fullerenes are all discussed and related to each other. Single-photon dipole, two-photon and quadrupole excitation are considered, as well as the observation of harmonics, and the enhancement of double excitations by a giant resonance. Other near-threshold phenomena are discussed, and experiments involving strong-field lasers are also considered in this context. (author)

A study on light collection of small scintillating crystals

CERN Document Server

Vittori, F; Malatesta, T; Puertolas, D

2000-01-01

Measurements are described concerning the light collection efficiency of YAP:Ce and CsI(Tl) crystals pillars with thicknesses ranging between 3 and 28 mm and cross-sections of 0.6 x 0.6 and 1 x 1 mm sup 2. These measurements have shown that the light collection is strongly dependent on the length of the pillar rather than on its cross-sectional area. A Monte Carlo code has been developed in order to evaluate the light collection efficiency as a function of the pillar geometry and surface treatment. Particular attention has been paid to the light transition through the crystal-photocathode window interface. The possibility to improve light detection by using a new photon detector provided with a YAP photocathode window has been verified.

Suppressing turbulence of self-propelling rods by strongly coupled passive particles.

Science.gov (United States)

Su, Yen-Shuo; Wang, Hao-Chen; I, Lin

2015-03-01

The strong turbulence suppression, mainly for large-scale modes, of two-dimensional self-propelling rods, by increasing the long-range coupling strength Γ of low-concentration passive particles, is numerically demonstrated. It is found that large-scale collective rod motion in forms of swirls or jets is mainly contributed from well-aligned dense patches, which can push small poorly aligned rod patches and uncoupled passive particles. The more efficient momentum transfer and dissipation through increasing passive particle coupling leads to the formation of a more ordered and slowed down network of passive particles, which competes with coherent dense active rod clusters. The frustration of active rod alignment ordering and coherent motion by the passive particle network, which interrupt the inverse cascading of forming large-scale swirls, is the key for suppressing collective rod motion with scales beyond the interpassive distance, even in the liquid phase of passive particles. The loosely packed active rods are weakly affected by increasing passive particle coupling due to the weak rod-particle interaction. They mainly contribute to the small-scale modes and high-speed motion.

Application of strong phosphoric acid to radiochemistry

International Nuclear Information System (INIS)

Terada, Kikuo

1977-01-01

Not only inorganic and organic compounds but also natural substrances, such as accumulations in soil, are completely decomposed and distilled by heating with strong phosphoric acid for 30 to 50 minutes. As applications of strong phosphoric acid to radiochemistry, determination of uranium and boron by use of solubilization effect of this substance, titration of uranyl ion by use of sulfuric iron (II) contained in this substance, application to tracer experiment, and determination of radioactive ruthenium in environmental samples are reviewed. Strong phosphoric acid is also applied to activation analysis, for example, determination of N in pyrographite with iodate potassium-strong phosphoric acid method, separation of Os and Ru with sulfuric cerium (IV) - strong phosphoric acid method or potassium dechromate-strong phosphoric acid method, analysis of Se, As and Sb rocks and accumulations with ammonium bromide, sodium chloride and sodium bromide-strong phosphoric acid method. (Kanao, N.)

Strong coupling phase in QED

International Nuclear Information System (INIS)

Aoki, Ken-ichi

1988-01-01

Existence of a strong coupling phase in QED has been suggested in solutions of the Schwinger-Dyson equation and in Monte Carlo simulation of lattice QED. In this article we recapitulate the previous arguments, and formulate the problem in the modern framework of the renormalization theory, Wilsonian renormalization. This scheme of renormalization gives the best understanding of the basic structure of a field theory especially when it has a multi-phase structure. We resolve some misleading arguments in the previous literature. Then we set up a strategy to attack the strong phase, if any. We describe a trial; a coupled Schwinger-Dyson equation. Possible picture of the strong coupling phase QED is presented. (author)

Factors Influencing the Usage of an Electronic Book Collection: Size of the E-Book Collection, the Student Population, and the Faculty Population

Science.gov (United States)

Lamothe, Alain R.

2013-01-01

This paper presents the results of a quantitative and systematic investigation exploring online e-book usage at the J.N. Desmarais Library of Laurentian University over a 9-year period. The size of an e-book collection was determined to show evidence of an extremely strong relationship with the level of usage e-books experienced. Of all factors…

Confrontation Between Judicial Activism and State of Exception

Directory of Open Access Journals (Sweden)

Alexandre Pedro Moura D’Almeida

2017-01-01

Full Text Available The judiciary has excelled in the international and national scene, reaching role of great importance, thus creating opposition to the legislative and executive powers. The center of gravity of the sovereign power of the state moves toward the judiciary, that happens to have a more active role and controlling of the others powers, but also appears as a great defender of social and fundamental rights causes, seeking to make an effective constitution. Its great public notoriety has attracted great distrust of various sectors of society, especially by the two powers that have an increasing interference. Arises, therefore, a speech that the judiciary would be reversing into a big and uncontrollable power, increasing the suspicion that now it would be living in a real dictatorship of the judiciary through judicial activism. There is a growing concern with the expansion of activism and the role of the judiciary. The purpose of this work is to conceptualize and approach the judicial activism and the state of exception to search and reveal if there is any similarity, to then draw up a possible answer to the concern of forming a dictatorship of the judiciary. The state of exception is one of the rule of law paradoxes, while activism is a political manifestation of the judiciary. The similarity between the institutes appears as appalling in a dynamic expansion of political power of a state institution exercising judicial function, putting in check who would be the sovereign in a rule of law and democratic state.

A dynamic network model of expertise and exceptional performance in sports

NARCIS (Netherlands)

den Hartigh, Ruud; van Geert, Paul

2014-01-01

Introduction The study of expertise and exceptional performance covers a range from “beginner” to world-class performance. While developing sport expertise a variety of interacting internal and external performance factors are involved, which may differ between athletes (Phillips et al., 2010). The

Strongly correlating liquids and their isomorphs

OpenAIRE

Pedersen, Ulf R.; Gnan, Nicoletta; Bailey, Nicholas P.; Schröder, Thomas B.; Dyre, Jeppe C.

2010-01-01

This paper summarizes the properties of strongly correlating liquids, i.e., liquids with strong correlations between virial and potential energy equilibrium fluctuations at constant volume. We proceed to focus on the experimental predictions for strongly correlating glass-forming liquids. These predictions include i) density scaling, ii) isochronal superposition, iii) that there is a single function from which all frequency-dependent viscoelastic response functions may be calculated, iv) that...

Sensitivity of nonlinear photoionization to resonance substructure in collective excitation

Science.gov (United States)

Mazza, T.; Karamatskou, A.; Ilchen, M.; Bakhtiarzadeh, S.; Rafipoor, A. J.; O'Keeffe, P.; Kelly, T. J.; Walsh, N.; Costello, J. T.; Meyer, M.; Santra, R.

2015-01-01

Collective behaviour is a characteristic feature in many-body systems, important for developments in fields such as magnetism, superconductivity, photonics and electronics. Recently, there has been increasing interest in the optically nonlinear response of collective excitations. Here we demonstrate how the nonlinear interaction of a many-body system with intense XUV radiation can be used as an effective probe for characterizing otherwise unresolved features of its collective response. Resonant photoionization of atomic xenon was chosen as a case study. The excellent agreement between experiment and theory strongly supports the prediction that two distinct poles underlie the giant dipole resonance. Our results pave the way towards a deeper understanding of collective behaviour in atoms, molecules and solid-state systems using nonlinear spectroscopic techniques enabled by modern short-wavelength light sources. PMID:25854939

Evidence for trapping and collectivization of resonances at strong coupling

International Nuclear Information System (INIS)

Herzberg, R.D.; Brentano, P. von; Rotter, I.

1993-01-01

The behavior of 22 neutron resonances in 53 Cr is investigated as a function of the coupling-strength parameter μ and of the degree of overlapping. Starting from a doorway picture at small μ, the widths of 21 resonances increase with increasing μ at the cost of the width of the original 'single-particle doorway resonance'. At μ≅1, the widths of most states decrease again. At μ→10 the widths of these 'trapped' states vanish while 'collective' states are formed which gather the widths. Thus we again observe a doorway picture at strong coupling. At μ=1, the energies and widths of the resonances are fitted to the experimental data. At this coupling strength, most resonances investigated resemble trapped modes. (orig.)

Comparing Usage Patterns Recorded between an Electronic Reference and an Electronic Monograph Collection: The Differences in Searches and Full-Text Content Viewings

Science.gov (United States)

Lamothe, Alain R.

2012-01-01

This paper presents the results from a quantitative and systematic analysis comparing the online usage of an e-reference and an e-monograph collection. A very strong relationship exists between size and usage: the larger the collection, the greater the usage. An equally strong relationship exists between searches and viewings, meaning that the…

Collection-based analysis of selected medical libraries in the Philippines using Doody’s Core Titles

Directory of Open Access Journals (Sweden)

Efren Torres Jr., MLIS

2017-01-01

Conclusion: De La Salle Health Sciences Institute and University of Santo Tomas had sound medical collections based on Doody’s Core Titles. Collectively, the medical libraries shared common collection development priorities, as evidenced by similarities in strong areas. Library budget and the role of the library director in book selection were among the factors that could contributed to a high percentage of match titles.

Exemption, exception and other criteria for transport criticality safety

International Nuclear Information System (INIS)

Mennerdahl, D.

2004-01-01

Many strange concepts, requirements and specifications related to criticality safety are present in the Regulations. Some earlier problems have been corrected but, going back to 1961 and the first edition of the Regulations, it seems as many changes have been to the worse. Fissile material was defined correctly as a material that could consist of or contain fissile nuclides. Materials consisting of pure fissile nuclides don't exist but are important in package designs. 238 Pu was included as a fissile nuclide only as an emergency, because there was no alternative, but this caused some people to think that all nuclides supporting criticality are fissile. Neutron interaction between different (non-identical) packages had to be evaluated, making the transport index or allowable number of packages a credible safety control. That is not true anymore. The 15 gram exception limit for fissile nuclides was combined with a transport mode limit, similar to but more restrictive than the current consignment limit. The confinement system was introduced to help with formulation of a single requirement for safety of the containment system but is becoming something very different. Controls before the first use of a packaging have become controls of the first use of a package, supporting multiple shipments of the same package. The lack of exemption limits for fissile material essentially makes all radioactive materials fissile (all radioactive material contains some fissile atoms). Radioactive material seems to be defined without consideration of the criticality hazard of the material. LSA materials are defined with consideration of criticality, but only relates to quantities in fissile exceptions when other properties can be equally or more important. In July 2004, a number of proposals to IAEA have been submitted by Sweden to improve and expand the criticality safety control of the Regulations. Essential is the introduction of the fissionable nuclide and material concepts in

Exemption, exception and other criteria for transport criticality safety

Energy Technology Data Exchange (ETDEWEB)

Mennerdahl, D. [E Mennerdahl Systems, Taeby (Sweden)

2004-07-01

Many strange concepts, requirements and specifications related to criticality safety are present in the Regulations. Some earlier problems have been corrected but, going back to 1961 and the first edition of the Regulations, it seems as many changes have been to the worse. Fissile material was defined correctly as a material that could consist of or contain fissile nuclides. Materials consisting of pure fissile nuclides don't exist but are important in package designs. {sup 238}Pu was included as a fissile nuclide only as an emergency, because there was no alternative, but this caused some people to think that all nuclides supporting criticality are fissile. Neutron interaction between different (non-identical) packages had to be evaluated, making the transport index or allowable number of packages a credible safety control. That is not true anymore. The 15 gram exception limit for fissile nuclides was combined with a transport mode limit, similar to but more restrictive than the current consignment limit. The confinement system was introduced to help with formulation of a single requirement for safety of the containment system but is becoming something very different. Controls before the first use of a packaging have become controls of the first use of a package, supporting multiple shipments of the same package. The lack of exemption limits for fissile material essentially makes all radioactive materials fissile (all radioactive material contains some fissile atoms). Radioactive material seems to be defined without consideration of the criticality hazard of the material. LSA materials are defined with consideration of criticality, but only relates to quantities in fissile exceptions when other properties can be equally or more important. In July 2004, a number of proposals to IAEA have been submitted by Sweden to improve and expand the criticality safety control of the Regulations. Essential is the introduction of the fissionable nuclide and material

Fog water collection effectiveness: Mesh intercomparisons

Science.gov (United States)

Fernandez, Daniel; Torregrosa, Alicia; Weiss-Penzias, Peter; Zhang, Bong June; Sorensen, Deckard; Cohen, Robert; McKinley, Gareth; Kleingartner, Justin; Oliphant, Andrew; Bowman, Matthew

2018-01-01

To explore fog water harvesting potential in California, we conducted long-term measurements involving three types of mesh using standard fog collectors (SFC). Volumetric fog water measurements from SFCs and wind data were collected and recorded in 15-minute intervals over three summertime fog seasons (2014–2016) at four California sites. SFCs were deployed with: standard 1.00 m2 double-layer 35% shade coefficient Raschel; stainless steel mesh coated with the MIT-14 hydrophobic formulation; and FogHa-Tin, a German manufactured, 3-dimensional spacer fabric deployed in two orientations. Analysis of 3419 volumetric samples from all sites showed strong relationships between mesh efficiency and wind speed. Raschel mesh collected 160% more fog water than FogHa-Tin at wind speeds less than 1 m s–1 and 45% less for wind speeds greater than 5 m s–1. MIT-14 coated stainless-steel mesh collected more fog water than Raschel mesh at all wind speeds. At low wind speeds of steel mesh collected 3% more and at wind speeds of 4–5 m s–1, it collected 41% more. FogHa-Tin collected 5% more fog water when the warp of the weave was oriented vertically, per manufacturer specification, than when the warp of the weave was oriented horizontally. Time series measurements of three distinct mesh across similar wind regimes revealed inconsistent lags in fog water collection and inconsistent performance. Since such differences occurred under similar wind-speed regimes, we conclude that other factors play important roles in mesh performance, including in-situ fog event and aerosol dynamics that affect droplet-size spectra and droplet-to-mesh surface interactions.

An exceptional role for flowering plant physiology in the expansion of tropical rainforests and biodiversity.

Science.gov (United States)

Boyce, C Kevin; Lee, Jung-Eun

2010-11-22

Movement of water from soil to atmosphere by plant transpiration can feed precipitation, but is limited by the hydraulic capacities of plants, which have not been uniform through time. The flowering plants that dominate modern vegetation possess transpiration capacities that are dramatically higher than any other plants, living or extinct. Transpiration operates at the level of the leaf, however, and how the impact of this physiological revolution scales up to the landscape and larger environment remains unclear. Here, climate modelling demonstrates that angiosperms help ensure aseasonally high levels of precipitation in the modern tropics. Most strikingly, replacement of angiosperm with non-angiosperm vegetation would result in a hotter, drier and more seasonal Amazon basin, decreasing the overall area of ever-wet rainforest by 80 per cent. Thus, flowering plant ecological dominance has strongly altered climate and the global hydrological cycle. Because tropical biodiversity is closely tied to precipitation and rainforest area, angiosperm climate modification may have promoted diversification of the angiosperms themselves, as well as radiations of diverse vertebrate and invertebrate animal lineages and of epiphytic plants. Their exceptional potential for environmental modification may have contributed to divergent responses to similar climates and global perturbations, like mass extinctions, before and after angiosperm evolution.

13 CFR 107.835 - Exceptions to minimum duration/term of Financing.

Science.gov (United States)

2010-01-01

.../term of Financing. 107.835 Section 107.835 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION SMALL BUSINESS INVESTMENT COMPANIES Financing of Small Businesses by Licensees Structuring Licensee's Financing of An Eligible Small Business: Terms and Conditions of Financing § 107.835 Exceptions to minimum...

Feasible, Efficient and Necessary, without Exception – Working with Sex Workers Interrupts HIV/STI Transmission and Brings Treatment to Many in Need

Science.gov (United States)

Steen, Richard; Wheeler, Tisha; Gorgens, Marelize; Mziray, Elizabeth; Dallabetta, Gina

2015-01-01

Background and Overview High rates of partner change in sex work—whether in professional, ‘transactional’ or other context—disproportionately drive transmission of HIV and other sexually transmitted infections. Several countries in Asia have demonstrated that reducing transmission in sex work can reverse established epidemics among sex workers, their clients and the general population. Experience and emerging research from Africa reaffirms unprotected sex work to be a key driver of sexual transmission in different contexts and regardless of stage or classification of HIV epidemic. This validation of the epidemiology behind sexual transmission carries an urgent imperative to realign prevention resources and scale up effective targeted interventions in sex work settings, and, given declining HIV resources, to do so efficiently. Eighteen articles in this issue highlight the importance and feasibility of such interventions under four themes: 1) epidemiology, data needs and modelling of sex work in generalised epidemics; 2) implementation science addressing practical aspects of intervention scale-up; 3) community mobilisation and 4) the treatment cascade for sex workers living with HIV. Conclusion Decades of empirical evidence, extended by analyses in this collection, argue that protecting sex work is, without exception, feasible and necessary for controlling HIV/STI epidemics. In addition, the disproportionate burden of HIV borne by sex workers calls for facilitated access to ART, care and support. The imperative for Africa is rapid scale-up of targeted prevention and treatment, facilitated by policies and action to improve conditions where sex work takes place. The opportunity is a wealth of accumulated experience working with sex workers in diverse settings, which can be tapped to make up for lost time. Elsewhere, even in countries with strong interventions and services for sex workers, an emerging challenge is to find ways to sustain them in the face of

Saharan dust particles in snow samples of Alps and Apennines during an exceptional event of transboundary air pollution.

Science.gov (United States)

Telloli, Chiara; Chicca, Milvia; Pepi, Salvatore; Vaccaro, Carmela

2017-12-21

Southern European countries are often affected in summer by transboundary air pollution from Saharan dust. However, very few studies deal with Saharan dust pollution at high altitudes in winter. In Italy, the exceptional event occurred on February 19, 2014, colored in red the entire mountain range (Alps and Apennines) and allowed to characterize the particulate matter deposited on snow from a morphological and chemical point of view. Snow samples were collected after this event in four areas in the Alps and one in the Apennines. The particulate matter of the melted snow samples was analyzed by scanning electron microscopy with energy dispersive X-ray spectrometry (SEM-EDS) and by inductively coupled plasma mass spectrometry (ICP-MS). These analyses confirmed the presence of Saharan dust particle components in all areas with similar percentages, supported also by the positive correlations between Mg-Ca, Al-Ca, Al-Mg, and Al-K in all samples.

Quantum theory of collective phenomena

CERN Document Server

Sewell, G L

2014-01-01

""An excellent and competent introduction to the field … [and] … a source of information for the expert."" - Physics Today""This a book of major importance…. I trust that this book will be used as a basis for the teaching of a balanced, modern and rigorous course on statistical mechanics in all universities."" - Bulletin of the London Mathematical Society""This is one of the best introductions to the subject, and it is strongly recommended to anyone interested in collective phenomena."" - Physics Bulletin ""The book may be recommended for students as a well-balanced introduction to this rich s

Collection-based analysis of selected medical libraries in the Philippines using Doody's Core Titles.

Science.gov (United States)

Torres, Efren

2017-01-01

This study assessed the book collection of five selected medical libraries in the Philippines, based on Doodys' Essential Purchase List for basic sciences and clinical medicine, to compare the match and non-match titles among libraries, to determine the strong and weak disciplines of each library, and to explore the factors that contributed to the percentage of match and non-match titles. List checking was employed as the method of research. Among the medical libraries, De La Salle Health Sciences Institute and University of Santo Tomas had the highest percentage of match titles, whereas Ateneo School of Medicine and Public Health had the lowest percentage of match titles. University of the Philippines Manila had the highest percentage of near-match titles. De La Salle Health Sciences Institute and University of Santo Tomas had sound medical collections based on Doody's Core Titles. Collectively, the medical libraries shared common collection development priorities, as evidenced by similarities in strong areas. Library budget and the role of the library director in book selection were among the factors that could contribute to a high percentage of match titles.

Between Law and the Exception: The UN 1267 Ombudsperson as a Hybrid Model of Legal Expertise

NARCIS (Netherlands)

Sullivan, G.; de Goede, M.

2013-01-01

Security measures taken in the name of the ‘war on terror’ have frequently been understood to operate through a domain of exception, defined as an extra-legal space of intervention where normal rules of juridical protection and due process are suspended. Yet whilst most analyses of the exception are

[A case study regarding the technical and public health feasibility of collecting water from fog].

Science.gov (United States)

García-Ubaque, César A; Vaca-Bohórquez, Martha L; García-Ubaque, Juan C

2013-01-01

Evaluating the collection of water for human consumption from fog nets in San Antonio (Cundinamarca department). Water was collected from fog using a prototype 6 m²sensor unit which was installed In the area for 53 days; this water was analysed to assess its quality regarding human consumption. The collection area's average daily volume was 43.26 L/day and the parameters evaluated met the minimum values established by local regulations for drinking water (RAS 2000), except for pH. This technique represents an alternative for obtaining water fit for human consumption and can be scaled-up to produce the quantity needed for communities living in low rainfall areas. It can thereby lead to improving such populations' health conditions. Its economic feasibility should thus be assessed regarding its implementation and sustainability.

SO(8) fermion dynamical symmetry and strongly correlated quantum Hall states in monolayer graphene

Science.gov (United States)

Wu, Lian-Ao; Murphy, Matthew; Guidry, Mike

2017-03-01

A formalism is presented for treating strongly correlated graphene quantum Hall states in terms of an SO(8) fermion dynamical symmetry that includes pairing as well as particle-hole generators. The graphene SO(8) algebra is isomorphic to an SO(8) algebra that has found broad application in nuclear physics, albeit with physically very different generators, and exhibits a strong formal similarity to SU(4) symmetries that have been proposed to describe high-temperature superconductors. The well-known SU(4) symmetry of quantum Hall ferromagnetism for single-layer graphene is recovered as one subgroup of SO(8), but the dynamical symmetry structure associated with the full set of SO(8) subgroup chains extends quantum Hall ferromagnetism and allows analytical many-body solutions for a rich set of collective states exhibiting spontaneously broken symmetry that may be important for the low-energy physics of graphene in strong magnetic fields. The SO(8) symmetry permits a natural definition of generalized coherent states that correspond to symmetry-constrained Hartree-Fock-Bogoliubov solutions, or equivalently a microscopically derived Ginzburg-Landau formalism, exhibiting the interplay between competing spontaneously broken symmetries in determining the ground state.

Detailed site effect estimation in the presence of strong velocity reversals within a small-aperture strong-motion array in Iceland

KAUST Repository

Rahpeyma, Sahar

2016-08-11

The rock site characterization for earthquake engineering applications in Iceland is common due to the easily exposed older bedrock and more recent volcanic lava rock. The corresponding site amplification is generally assumed to be low but has not been comprehensively quantified, especially for volcanic rock. The earthquake strong-motion of the Mw6.3 Ölfus earthquake on 29 May 2008 and 1705 of its aftershocks recorded on the first small-aperture strong-motion array (ICEARRAY I) in Iceland showed consistent and significant variations in ground motion amplitudes over short distances (<2 km) in an urban area located mostly on lava rock. This study analyses the aftershock recordings to quantify the local site effects using the Horizontal to Vertical Spectral Ratio (HVSR) and Standard Spectral Ratio (SSR) methods. Additionally, microseismic data has been collected at array stations and analyzed using the HVSR method. The results between the methods are consistent and show that while the amplification levels remain relatively low, the predominant frequency varies systematically between stations and is found to correlate with the geological units. In particular, for stations on lava rock the underlying geologic structure is characterized by repeated lava-soil stratigraphy characterized by reversals in the shear wave velocity with depth. As a result, standard modeling of HVSR using vertically incident body waves does not apply. Instead, modeling the soil structure as a two-degree-of-freedom dynamic system is found to capture the observed predominant frequencies of site amplification. The results have important implications for earthquake resistant design of structures on rock sites characterized by velocity reversals. © 2016 Elsevier Ltd

26 CFR 1.148-7 - Spending exceptions to the rebate requirement.

Science.gov (United States)

2010-04-01

... issue to be a refunding issue. (4) De minimis rule. Any failure to satisfy the final spending... to land, such as buildings or other inherently permanent structures, including interests in real.... Except as otherwise provided, construction expenditures means capital expenditures (as defined in § 1.150...

OPTICAL LINE EMISSION IN BRIGHTEST CLUSTER GALAXIES AT 0 < z < 0.6: EVIDENCE FOR A LACK OF STRONG COOL CORES 3.5 Gyr AGO?

International Nuclear Information System (INIS)

McDonald, Michael

2011-01-01

In recent years the number of known galaxy clusters beyond z ∼> 0.2 has increased drastically with the release of multiple catalogs containing >30,000 optically detected galaxy clusters over the range 0 0.3, hinting at an earlier epoch of strong cooling. We compare the evolution of emission-line nebulae to the X-ray-derived cool core (CC) fraction from the literature over the same redshift range and find overall agreement, with the exception that an upturn in the strong CC fraction is not observed at z > 0.3. The overall agreement between the evolution of CCs and optical line emission at low redshift suggests that emission-line surveys of galaxy clusters may provide an efficient method of indirectly probing the evolution of CCs and thus provide insights into the balance of heating and cooling processes at early cosmic times.

Strong-field dissociation dynamics

International Nuclear Information System (INIS)

DiMauro, L.F.; Yang, Baorui.

1993-01-01

The strong-field dissociation behavior of diatomic molecules is examined under two distinctive physical scenarios. In the first scenario, the dissociation of the isolated hydrogen and deuterium molecular ions is discussed. The dynamics of above-threshold dissociation (ATD) are investigated over a wide range of green and infrared intensities and compared to a dressed-state model. The second situation arises when strong-field neutral dissociation is followed by ionization of the atomic fragments. The study results in a direct measure of the atomic fragment's ac-Stark shift by observing the intensity-dependent shifts in the electron or nuclear fragment kinetic energy. 8 figs., 14 refs

Powering up the biogeochemical engine: The impact of exceptional ventilation of a deep meromictic lake on the lacustrine redox, nutrient, and methane balances

Directory of Open Access Journals (Sweden)

Moritz Felix Lehmann

2015-08-01

Full Text Available The Lake Lugano North Basin has been meromictic for several decades, with anoxic waters below 100m depth. Two consecutive cold winters in 2005 and 2006 induced exceptional deep mixing, leading to a transient oxygenation of the whole water column. With the ventilation of deep waters and the oxidation of large quantities of reduced solutes, the lake's total redox-balance turned positive, and the overall hypolimnetic oxygen demand of the lake strongly decreased. The disappearance of 150 t dissolved phosphorous (P during the first ventilation in March 2005 is attributed to the scavenging of water-column-borne P by newly formed metal oxyhydroxides and the temporary transfer to the sediments. The fixed nitrogen (N inventory was reduced by ~30% (~1000 t. The water-column turnover induced the nitratation of the previously NO3--free deep hypolimnion by oxidation of large amounts of legacy NH4+ and by mixing with NO3--rich subsurface water masses. Sediments with a strong denitrifying potential, but NO3--starved for decades, were brought in contact with NO3--replete waters, invigorating benthic denitrification and rapid fixed N loss from the lake in spite of the overall more oxygenated conditions. Similarly, a large microbial aerobic CH4 oxidation (MOx potential in the hypolimnion was capitalized with the ventilation of the deep basin. Almost all CH4, which had been built up over more than 40 years (~2800 t, was removed from the water column within 30 days. However, boosted MOx could only partly explain the disappearance of the CH4. The dominant fraction (75% of the CH4 evaded to the atmosphere, through storage flux upon exposure of anoxic CH4-rich water to the atmosphere. As of today, the North Basin seems far from homeostasis regarding its fixed N and CH4 budgets, and the deep basin's CH4 pool is recharging at a net production rate of ~66 t y-1. The size of impending CH4 outbursts will depend on the frequency and intensity of exceptional mixing events in

Multi-cellular logistics of collective cell migration.

Directory of Open Access Journals (Sweden)

Masataka Yamao

Full Text Available During development, the formation of biological networks (such as organs and neuronal networks is controlled by multicellular transportation phenomena based on cell migration. In multi-cellular systems, cellular locomotion is restricted by physical interactions with other cells in a crowded space, similar to passengers pushing others out of their way on a packed train. The motion of individual cells is intrinsically stochastic and may be viewed as a type of random walk. However, this walk takes place in a noisy environment because the cell interacts with its randomly moving neighbors. Despite this randomness and complexity, development is highly orchestrated and precisely regulated, following genetic (and even epigenetic blueprints. Although individual cell migration has long been studied, the manner in which stochasticity affects multi-cellular transportation within the precisely controlled process of development remains largely unknown. To explore the general principles underlying multicellular migration, we focus on the migration of neural crest cells, which migrate collectively and form streams. We introduce a mechanical model of multi-cellular migration. Simulations based on the model show that the migration mode depends on the relative strengths of the noise from migratory and non-migratory cells. Strong noise from migratory cells and weak noise from surrounding cells causes "collective migration," whereas strong noise from non-migratory cells causes "dispersive migration." Moreover, our theoretical analyses reveal that migratory cells attract each other over long distances, even without direct mechanical contacts. This effective interaction depends on the stochasticity of the migratory and non-migratory cells. On the basis of these findings, we propose that stochastic behavior at the single-cell level works effectively and precisely to achieve collective migration in multi-cellular systems.

Strong Stationary Duality for Diffusion Processes

OpenAIRE

Fill, James Allen; Lyzinski, Vince

2014-01-01

We develop the theory of strong stationary duality for diffusion processes on compact intervals. We analytically derive the generator and boundary behavior of the dual process and recover a central tenet of the classical Markov chain theory in the diffusion setting by linking the separation distance in the primal diffusion to the absorption time in the dual diffusion. We also exhibit our strong stationary dual as the natural limiting process of the strong stationary dual sequence of a well ch...

Is There Muslim Exceptionalism in Democracy Research?

DEFF Research Database (Denmark)

Hariri, Jacob Gerner

to and between the 16th and 18th centuries are relatively less democratic today. The negative effect of early statehood on current levels of democracy is mediated by European colonization and settlement: Europeans were less likely to colonize and settle in territories with more developed state institutions......, also, to alternative theories of the causes and correlates of democracy. This paper presents evidence against the notion of Muslim exceptionalism in democracy research. Thus, outside the European continent, territories that were governed earlier and more consistently by state organizations up...... and were therefore less likely to bring nascent legalistic and representative institutions to these territories. When we remove the autocratic legacy of early statehood and the influence of European settlement, there is nothing signicantly negative about the degree of democracy in Muslim-majority countries....

Transporting "exceptional cargo" on the CERN sites

CERN Multimedia

EN Department

2012-01-01

When the Transport Service is managing "exceptional cargo", the driver and the escort are often in charge of an operation involving equipment worth many hundred thousand francs. Equipment that may well be irreplaceable for a facility or an experiment.   The members of the Transport Service who carry out these tasks are very professional and are – needless to say – highly concentrated on the job. They count on your understanding and support in the traffic on site. Their convoys are – for good reasons – moving slowly. Kindly do not overtake, do not cut in in front of them and do not drive too closely. Respect the escort and do not position yourself between the truck and the escort vehicles. The EN department counts on your courtesy on the road.  

Calculating hadronic properties in strong QCD

International Nuclear Information System (INIS)

Pennington, M.R.

1996-01-01

This talk gives a brief review of the progress that has been made in calculating the properties of hadrons in strong QCD. In keeping with this meeting I will concentrate on those properties that can be studied with electromagnetic probes. Though perturbative QCD is highly successful, it only applies in a limited kinematic regime, where hard scattering occur, and the quarks move in the interaction region as if they are free, pointlike objects. However, the bulk of strong interactions are governed by the long distance regime, where the strong interaction is strong. It is this regime of length scales of the order of a Fermi, that determines the spectrum of light hadrons and their properties. The calculation of these properties requires an understanding of non-perturbative QCD, of confinement and chiral symmetry breaking. (author)

Provably correct control flow graphs from Java bytecode programs with exceptions

NARCIS (Netherlands)

Amighi, A.; de Carvalho Gomes, Pedro; Gurov, Dilian; Huisman, Marieke

2016-01-01

We present an algorithm for extracting control flow graphs from Java bytecode that captures normal as well as exceptional control flow. We prove its correctness, in the sense that the behaviour of the extracted control flow graph is a sound over-approximation of the behaviour of the original

13 CFR 147.515 - Are there any exceptions to those actions?

Science.gov (United States)

2010-01-01

... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Are there any exceptions to those actions? 147.515 Section 147.515 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION... particular award, in writing, a suspension of payments under an award, suspension or termination of an award...

Dual field theory of strong interactions

International Nuclear Information System (INIS)

Akers, D.

1987-01-01

A dual field theory of strong interactions is derived from a Lagrangian of the Yang-Mills and Higgs fields. The existence of a magnetic monopole of mass 2397 MeV and Dirac charge g = (137/2)e is incorporated into the theory. Unification of the strong, weak, and electromagnetic forces is shown to converge at the mass of the intermediate vector boson W/sup +/-/. The coupling constants of the strong and weak interactions are derived in terms of the fine-structure constant α = 1/137

Semi-strong split domination in graphs

Directory of Open Access Journals (Sweden)

Anwar Alwardi

2014-06-01

Full Text Available Given a graph $G = (V,E$, a dominating set $D subseteq V$ is called a semi-strong split dominating set of $G$ if $|V setminus D| geq 1$ and the maximum degree of the subgraph induced by $V setminus D$ is 1. The minimum cardinality of a semi-strong split dominating set (SSSDS of G is the semi-strong split domination number of G, denoted $gamma_{sss}(G$. In this work, we introduce the concept and prove several results regarding it.

Finding Exception For Association Rules Via SQL Queries

Directory of Open Access Journals (Sweden)

Luminita DUMITRIU

2000-12-01

Full Text Available Finding association rules is mainly based on generating larger and larger frequent set candidates, starting from frequent attributes in the database. The frequent sets can be organised as a part of a lattice of concepts according to the Formal Concept Analysis approach. Since the lattice construction is database contents-dependent, the pseudo-intents (see Formal Concept Analysis are avoided. Association rules between concept intents (closed sets A=>B are partial implication rules, meaning that there is some data supporting A and (not B; fully explaining the data requires finding exceptions for the association rules. The approach applies to Oracle databases, via SQL queries.

Comparison of Emotional Maturity in Boys adolescents with Down Syndrome(Research in Normal and Exceptional Schools

Directory of Open Access Journals (Sweden)

sahel Hemmati

2014-03-01

Full Text Available Objective: This research is compromised emotional maturity in boys’ adolescents with Down syndrome (12-18 years that study in formal and exceptional schools. Materials & Methods: At first 15 boy’s students with DS that study in formal school matched with 15 students in Exceptional school (IQ, , age, family education and socioeconomic state were same . Then EMS (Emotional Maturity Scale was tested by researchers. Results: Adolescents with DS in formal schools are significantly different and have better scale in emotional maturity and their fields. (P<0.001 Conclusion: Emotional maturity in adolescents with DS in formal schools is positive and better than peers in Exceptional classs This result is helpful for improvement integrated education system. .

Nonlinear phononics and structural control of strongly correlated materials

Energy Technology Data Exchange (ETDEWEB)

Mankowsky, Roman

2016-01-20

Mid-infrared light pulses can be used to resonantly excite infrared-active vibrational modes for the phase control of strongly correlated materials on subpicosecond timescales. As the energy is transferred directly into atomic motions, dissipation into the electronic system is reduced, allowing for the emergence of unusual low energy collective properties. Light-induced superconductivity, insulator-metal transitions and melting of magnetic order demonstrate the potential of this method. An understanding of the mechanism, by which these transitions are driven, is however missing. The aim of this work is to uncover this process by investigating the nonlinear lattice dynamics induced by the excitation and to elucidate their contribution to the modulation of collective properties of strongly correlated materials. The first signature of nonlinear lattice dynamics was reported in the observation of coherent phonon oscillations, resonant with the excitation of an infrared-active phonon mode in a manganite. This nonlinear phononic coupling can be described within a model, which predicts not only oscillatory coherent phonons dynamics but also directional atomic displacements along the coupled modes on average, which could cause the previously observed transitions. We verified this directional response and quantified the anharmonic coupling constant by tracing the atomic motions in a time-resolved hard X-ray diffraction experiment with sub-picometer spatial and femtosecond temporal resolution. In a subsequent study, we investigated the role of nonlinear lattice dynamics in the emergence of superconductivity far above the equilibrium transition temperature, an intriguing effect found to follow lattice excitation of YBa{sub 2}Cu{sub 3}O{sub 6+x}. By combining density functional theory (DFT) calculations of the anharmonic coupling constants with time-resolved X-ray diffraction experiments, we identified a structural rearrangement, which appears and decays with the same temporal

A new ankylosaurine dinosaur from the Judith River Formation of Montana, USA, based on an exceptional skeleton with soft tissue preservation

Science.gov (United States)

Arbour, Victoria M.; Evans, David C.

2017-05-01

The terrestrial Judith River Formation of northern Montana was deposited over an approximately 4 Myr interval during the Campanian (Late Cretaceous). Despite having been prospected and collected continuously by palaeontologists for over a century, few relatively complete dinosaur skeletons have been recovered from this unit to date. Here we describe a new genus and species of ankylosaurine dinosaur, Zuul crurivastator, from the Coal Ridge Member of the Judith River Formation, based on an exceptionally complete and well-preserved skeleton (ROM 75860). This is the first ankylosaurin skeleton known with a complete skull and tail club, and it is the most complete ankylosaurid ever found in North America. The presence of abundant soft tissue preservation across the skeleton, including in situ osteoderms, skin impressions and dark films that probably represent preserved keratin, make this exceptional skeleton an important reference for understanding the evolution of dermal and epidermal structures in this clade. Phylogenetic analysis recovers Zuul as an ankylosaurin ankylosaurid within a clade of Dyoplosaurus and Scolosaurus, with Euoplocephalus being more distantly related within Ankylosaurini. The occurrence of Z. crurivastator from the upper Judith River Formation fills a gap in the ankylosaurine stratigraphic and geographical record in North America, and further highlights that Campanian ankylosaurines were undergoing rapid evolution and stratigraphic succession of taxa as observed for Laramidian ceratopsids, hadrosaurids, pachycephalosaurids and tyrannosaurids.

Collected papers of P. L. Kapitza

CERN Document Server

Kapitsa, Petr Leonidovich

Collected Papers of P. L. Kapitza, Volume I compiles the scientific papers written between 1916 and 1934 by Piotr Leonidovich Kapitza, a leading Soviet physicist and Nobel laureate. This book begins by introducing the life and career of P. L. Kapitza, which includes his studies and investigations of nuclear physics, strong magnetic fields, liquefaction, liquid helium, and high-power electronics. Other topics discussed include electron inertia in molecular ampere currents; Koch recording microphotometer; metallic conductivity and its change in a magnetic field; and methods of experimenting in s

A versatile setup for ultrafast broadband optical spectroscopy of coherent collective modes in strongly correlated quantum systems

Directory of Open Access Journals (Sweden)

Edoardo Baldini

2016-11-01

Full Text Available A femtosecond pump-probe setup is described that is optimised for broadband transient reflectivity experiments on solid samples over a wide temperature range. By combining high temporal resolution and a broad detection window, this apparatus can investigate the interplay between coherent collective modes and high-energy electronic excitations, which is a distinctive characteristic of correlated electron systems. Using a single-shot readout array detector at frame rates of 10 kHz allows resolving coherent oscillations with amplitudes <10−4. We demonstrate its operation on the charge-transfer insulator La2CuO4, revealing coherent phonons with frequencies up to 13 THz and providing access into their Raman matrix elements.

Strong Coupling Corrections in Quantum Thermodynamics

Science.gov (United States)

Perarnau-Llobet, M.; Wilming, H.; Riera, A.; Gallego, R.; Eisert, J.

2018-03-01

Quantum systems strongly coupled to many-body systems equilibrate to the reduced state of a global thermal state, deviating from the local thermal state of the system as it occurs in the weak-coupling limit. Taking this insight as a starting point, we study the thermodynamics of systems strongly coupled to thermal baths. First, we provide strong-coupling corrections to the second law applicable to general systems in three of its different readings: As a statement of maximal extractable work, on heat dissipation, and bound to the Carnot efficiency. These corrections become relevant for small quantum systems and vanish in first order in the interaction strength. We then move to the question of power of heat engines, obtaining a bound on the power enhancement due to strong coupling. Our results are exemplified on the paradigmatic non-Markovian quantum Brownian motion.

Control of the rings of exceptional points in photonic crystal slabs

DEFF Research Database (Denmark)

Kaminski, Piotr Marek; Breinbjerg, Olav; Mørk, Jesper

2017-01-01

shown that when the system becomes non-Hermitian, e.g. it is an open system exhibiting radiation losses, Dirac cones can be deformed spawning rings of exceptional points [2]. Within the ring, the dispersion follows the two-dimensional flat band which provides a high density of states and therefore high...

75 FR 80747 - End-User Exception to Mandatory Clearing of Swaps

Science.gov (United States)

2010-12-23

..., via its Comments Online process: http://comments.cftc.gov . Follow the instructions for submitting... predominantly engaged in activities that are in the business of banking or financial in nature, as defined in... regarding use of the end-user clearing exception to be made through SDRs? What are the advantages or...

The Council for Exceptional Children's Position on Special Education Teacher Evaluation

Science.gov (United States)

TEACHING Exceptional Children, 2013

2013-01-01

The Council for Exceptional Children (CEC) recognizes the importance of special education teachers in the education of all children and youth. Special educators have always believed that children's individual learning needs should drive instruction; indeed, pedagogy is the heart of special education practice. One way to judge a special education…

Research on data collection key technology of smart electric energy meters

Science.gov (United States)

Chen, Xiangqun; Huang, Rui; Shen, Liman; Chen, Hao; Xiong, Dezhi; Xiao, Xiangqi; Mouhailiu; Renheng, Xu

2018-02-01

In recent years, smart electric energy meters are demand at 70 million to 90 million with the strong smart grid construction every year in China. However, there are some issues in smart electric energy meters data collection such as the interference of environment, low collection efficiency and inability to work when the power is off. In order to solve these issues above, it uses the RFID communication technology to collect the numbers and electric energy information of smart electric energy meters on the basis of the existing smart electric energy meters, and the related data collection communication experiments were made. The experimental result shows that the electric information and other data batch collection of RFID smart electric energy meters are realized in power and power off. It improves the efficiency and the overall success rate is 99.2% within 2 meters. It provides a new method for smart electric energy meters data collection.

LAMMPS strong scaling performance optimization on Blue Gene/Q

Energy Technology Data Exchange (ETDEWEB)

Coffman, Paul; Jiang, Wei; Romero, Nichols A.

2014-11-12

LAMMPS "Large-scale Atomic/Molecular Massively Parallel Simulator" is an open-source molecular dynamics package from Sandia National Laboratories. Significant performance improvements in strong-scaling and time-to-solution for this application on IBM's Blue Gene/Q have been achieved through computational optimizations of the OpenMP versions of the short-range Lennard-Jones term of the CHARMM force field and the long-range Coulombic interaction implemented with the PPPM (particle-particle-particle mesh) algorithm, enhanced by runtime parameter settings controlling thread utilization. Additionally, MPI communication performance improvements were made to the PPPM calculation by re-engineering the parallel 3D FFT to use MPICH collectives instead of point-to-point. Performance testing was done using an 8.4-million atom simulation scaling up to 16 racks on the Mira system at Argonne Leadership Computing Facility (ALCF). Speedups resulting from this effort were in some cases over 2x.

A simple threshold rule is sufficient to explain sophisticated collective decision-making.

Directory of Open Access Journals (Sweden)

Elva J H Robinson

Full Text Available Decision-making animals can use slow-but-accurate strategies, such as making multiple comparisons, or opt for simpler, faster strategies to find a 'good enough' option. Social animals make collective decisions about many group behaviours including foraging and migration. The key to the collective choice lies with individual behaviour. We present a case study of a collective decision-making process (house-hunting ants, Temnothorax albipennis, in which a previously proposed decision strategy involved both quality-dependent hesitancy and direct comparisons of nests by scouts. An alternative possible decision strategy is that scouting ants use a very simple quality-dependent threshold rule to decide whether to recruit nest-mates to a new site or search for alternatives. We use analytical and simulation modelling to demonstrate that this simple rule is sufficient to explain empirical patterns from three studies of collective decision-making in ants, and can account parsimoniously for apparent comparison by individuals and apparent hesitancy (recruitment latency effects, when available nests differ strongly in quality. This highlights the need to carefully design experiments to detect individual comparison. We present empirical data strongly suggesting that best-of-n comparison is not used by individual ants, although individual sequential comparisons are not ruled out. However, by using a simple threshold rule, decision-making groups are able to effectively compare options, without relying on any form of direct comparison of alternatives by individuals. This parsimonious mechanism could promote collective rationality in group decision-making.

A simple threshold rule is sufficient to explain sophisticated collective decision-making.

Science.gov (United States)

Robinson, Elva J H; Franks, Nigel R; Ellis, Samuel; Okuda, Saki; Marshall, James A R

2011-01-01

Decision-making animals can use slow-but-accurate strategies, such as making multiple comparisons, or opt for simpler, faster strategies to find a 'good enough' option. Social animals make collective decisions about many group behaviours including foraging and migration. The key to the collective choice lies with individual behaviour. We present a case study of a collective decision-making process (house-hunting ants, Temnothorax albipennis), in which a previously proposed decision strategy involved both quality-dependent hesitancy and direct comparisons of nests by scouts. An alternative possible decision strategy is that scouting ants use a very simple quality-dependent threshold rule to decide whether to recruit nest-mates to a new site or search for alternatives. We use analytical and simulation modelling to demonstrate that this simple rule is sufficient to explain empirical patterns from three studies of collective decision-making in ants, and can account parsimoniously for apparent comparison by individuals and apparent hesitancy (recruitment latency) effects, when available nests differ strongly in quality. This highlights the need to carefully design experiments to detect individual comparison. We present empirical data strongly suggesting that best-of-n comparison is not used by individual ants, although individual sequential comparisons are not ruled out. However, by using a simple threshold rule, decision-making groups are able to effectively compare options, without relying on any form of direct comparison of alternatives by individuals. This parsimonious mechanism could promote collective rationality in group decision-making.

Comparative Study of Unconscionability Exception to the Principle of Autonomy in Law of Letter of Credits

Directory of Open Access Journals (Sweden)

Hamed Alavi

2016-08-01

Full Text Available This paper touches upon legal nature and scope of unconscionability as an exception to autonomy principle of documentary letters of credit (LC and bank guarantees. Complicated process of international trade is known as the main reason behind development of new exceptions to globally appreciated principle of autonomy in process of LC transaction. Apart from fraud which has been recognized in international business society and various jurisdictions, other exceptions including unconscionability, nullity, illegality and recklessness have received different treatments in different national laws. Unconscionability is applied to situations where beneficiary’s demand to draw under the LC is not fraudulent but affected with bad faith in a way that court prevents bank from honouring the credit. While UCP leaves the problem of fraud and other exceptions to autonomy principle to be solved by national laws, among common law countries, unconscionability defence has been recognized in Australia and Singapore but others do not show welcoming attitude towards it. Current paper tries to find reasons behind different attitudes of common law jurisdictions to unconscionability defence in letter of credit process by answering following questions: What is the nature of unconscionability? How different common law jurisdictions have received it as an exception to principle of autonomy in documentary letters of credit and bank guarantees? And last but not the least, what are arguments in favour and against its universal recognition as a defence for payment under letter of credit and bank guarantee system?

Fog water collection effectiveness: Mesh intercomparisons

Science.gov (United States)

Fernandez, Daniel; Torregrosa, Alicia; Weiss-Penzias, Peter; Zhang, Bong June; Sorensen, Deckard; Cohen, Robert; McKinley, Gareth; Kleingartner, Justin; Oliphant, Andrew; Bowman, Matthew

2018-01-01

To explore fog water harvesting potential in California, we conducted long-term measurements involving three types of mesh using standard fog collectors (SFC). Volumetric fog water measurements from SFCs and wind data were collected and recorded in 15-minute intervals over three summertime fog seasons (2014–2016) at four California sites. SFCs were deployed with: standard 1.00 m2 double-layer 35% shade coefficient Raschel; stainless steel mesh coated with the MIT-14 hydrophobic formulation; and FogHa-Tin, a German manufactured, 3-dimensional spacer fabric deployed in two orientations. Analysis of 3419 volumetric samples from all sites showed strong relationships between mesh efficiency and wind speed. Raschel mesh collected 160% more fog water than FogHa-Tin at wind speeds less than 1 m s–1 and 45% less for wind speeds greater than 5 m s–1. MIT-14 coated stainless-steel mesh collected more fog water than Raschel mesh at all wind speeds. At low wind speeds of wind speeds of 4–5 m s–1, it collected 41% more. FogHa-Tin collected 5% more fog water when the warp of the weave was oriented vertically, per manufacturer specification, than when the warp of the weave was oriented horizontally. Time series measurements of three distinct mesh across similar wind regimes revealed inconsistent lags in fog water collection and inconsistent performance. Since such differences occurred under similar wind-speed regimes, we conclude that other factors play important roles in mesh performance, including in-situ fog event and aerosol dynamics that affect droplet-size spectra and droplet-to-mesh surface interactions.

Strong interactions

International Nuclear Information System (INIS)

Froissart, Marcel

1976-01-01

Strong interactions are introduced by their more obvious aspect: nuclear forces. In hadron family, the nucleon octet, OMEGA - decuplet, and quark triply are successively considered. Pion wave having been put at the origin of nuclear forces, low energy phenomena are described, the force being explained as an exchange of structure corresponding to a Regge trajectory in a variable rotating state instead of the exchange of a well defined particle. At high energies the concepts of pomeron, parton and stratons are introduced, pionization and fragmentation are briefly differentiated [fr

A strong comeback

International Nuclear Information System (INIS)

Marier, D.

1992-01-01

This article presents the results of a financial rankings survey which show a strong economic activity in the independent energy industry. The topics of the article include advisor turnover, overseas banks, and the increase in public offerings. The article identifies the top project finance investors for new projects and restructurings and rankings for lenders

Further notes on the Penard oölogical collection from Surinam

NARCIS (Netherlands)

Hellebrekers, W.Ph.J.

1945-01-01

In a previous paper (Hellebrekers, 1942) I stated my intention to give some more details on imperfectly known eggs, based on material of the collection of the Penard's. The description of these hitherto imperfectly known or incorrectly described eggs will be strongly aided by the coloured plate

The Return of the Cultural Exception and its Impact on International Agreements

Directory of Open Access Journals (Sweden)

Marlen Bartsch

2014-07-01

Full Text Available This essay examines the influence of the French concept of the “cultural exception” on European media policy and international agreements. After briefly reviewing the historical background of the cultural exception in France, the essay describes how demands for the cultural exception and those for diversity affect inter-/transnational agreements within the European Union and around the world. Special focus is placed on the current secret EU/US Transatlantic Trade and Investment Partnership Agreement (TTIP negotiations that nearly failed because of France’s insistence that media and culture be exempted. The author argues that the concept of the “cultural exception” has been revived in recent years. However, due to the dual character of media (which is both a cultural and economic good, and the lack of a global media policy, the culture and trade debate will continue.

Strongly disordered superconductors

International Nuclear Information System (INIS)

Muttalib, K.A.

1982-01-01

We examine some universal effects of strong non-magnetic disorder on the electron-phonon and electron-electron interactions in a superconductor. In particular we explicitly take into account the effect of slow diffusion of electrons in a disordered medium by working in an exact impurity eigenstate representation. We find that the normal diffusion of electrons characterized by a constant diffusion coefficient does not lead to any significant correction to the electron-phonon or the effective electron-electron interactions in a superconductor. We then consider sufficiently strong disorder where Anderson localization of electrons becomes important and determine the effect of localization on the electron-electron interactions. We find that due to localization, the diffusion of electrons becomes anomalous in the sense that the diffusion coefficient becomes scale dependent. This results in an increase in the effective electron-electron interaction with increasing disorder. We propose that this provides a natural explanation for the unusual sensitivity of the transition temperature T/sub c/ of the high T/sub c/ superconductors (T/sub c/ > 10 0 K) to damage effects

Strong Coupling Holography

CERN Document Server

Dvali, Gia

2009-01-01

We show that whenever a 4-dimensional theory with N particle species emerges as a consistent low energy description of a 3-brane embedded in an asymptotically-flat (4+d)-dimensional space, the holographic scale of high-dimensional gravity sets the strong coupling scale of the 4D theory. This connection persists in the limit in which gravity can be consistently decoupled. We demonstrate this effect for orbifold planes, as well as for the solitonic branes and string theoretic D-branes. In all cases the emergence of a 4D strong coupling scale from bulk holography is a persistent phenomenon. The effect turns out to be insensitive even to such extreme deformations of the brane action that seemingly shield 4D theory from the bulk gravity effects. A well understood example of such deformation is given by large 4D Einstein term in the 3-brane action, which is known to suppress the strength of 5D gravity at short distances and change the 5D Newton's law into the four-dimensional one. Nevertheless, we observe that the ...

<strong>Entrepreneurial Action in Shaping Education for Entrepreneurshipstrong>

DEFF Research Database (Denmark)

Christensen, Poul Rind; Kirketerp Linstad, Anne

entrepreneurship training and education. Neutral assessments of the school have indicated that more than 50 percent of the students graduated from the school has started their own business and furthermore that the students exercise a strong entrepreneurial behaviour (Deichman-Sørensen 1997). Seemingly the school...... also started to pay attention to the apparent success of the KaosPilots. What is the secret of their recipe? In this contribution we want to explore how the KaosPilots form their pedagogical concepts of teaching entrepreneurship and enterprise behaviour....