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suppose that you have an abstract for a scientific paper we demonstrate how measuring orbital period derivatives can lead to more accurate distance estimates and transverse velocities for some nearby binary pulsars a in many cases this method will estimate distances more accurately than is possible by annual parallax a...
hi absorption by interstellar hydrogen is also a common distance indicator a excite a a however a no pulsar has a distance estimate more accurate than % a and for all but two a the errors are greater than 20% a
901
suppose that you have an abstract for a scientific paper we consider interacting skinless fermions in one dimension embedded in self a similar quasiperiodic potentials a we examine generalizations of the fibonacci potential known as precious mean potentials a using a colonization technique and a renormalization group a...
a it has been shown that the eigenstates a which are neither localized nor extended but critical a algebraic decay a a are responsible of an anomalous quantum diffusion in any dimension a concerning the nature of the spectrum a it depends on the dimensionality but also exhibits specific characteristics of the quasiperi...
902
suppose that you have an abstract for a scientific paper we study the luminosity function and the correlation function of about 1200 z lyman break galaxies a legs a with that are photometrically selected from deep imaging data of a 618 arcmin area in the subaru a hmm a newton deep field taken with subaru prime focus ca...
however the surveyed areas of has are as small as a few arcmin each a so they may be affected by field a to a field variations a steel and his collaborators have pioneered in statistical studies of high--z a galaxies based on ground a based wide survey data excite a
903
suppose that you have an abstract for a scientific paper results of two years of continuous monitoring of flux density variations at 8.3 and 2.3 ghz of the galactic center super a massive black hole candidate sir a a are reported a the average rms modulation indices are of and 2.5% at 8.3 a 2.3 ghz respectively a there...
the overall shape of the sir a a radio spectrum has been discussed in many papers a edge a serabyn it al a 1997 a face it al a
904
suppose that you have an abstract for a scientific paper recent results of the cascade air shower experiment are presented in order to shed some light on the astrophysics of cosmic rays in the region of the knee in the energy spectrum a the results include investigations of high a energy interactions in the atmosphere ...
hence a an understanding of the origin of the knee reveals hints on the acceleration and propagation of cosmic rays a experimental access to the understanding of the sources a acceleration and propagation mechanisms is provided by detailed investigation of the arrival directions a energy spectra a and mass composition ...
905
suppose that you have an abstract for a scientific paper many models of physics beyond the standard model yield exotic highs decays a some of these a particularly those in which the highs decays to light quarks or gluons a can be very difficult to discover experimentally a here we introduce a new set of jet substructur...
when this decay dominates a the branching fractions into the standard discovery channels such as are very suppressed a and new lac strategies have to be developed to discover the highs a previous studies have considered the pseudoscalar decaying into a a a and excite a
906
suppose that you have an abstract for a scientific paper roman spectra are reported for a doped fullerides a a xxx a a a and a a a the lowest frequency modes split into five components for and even at room temperature a allowing us a quantitative analysis based on the electron a phonon coupling theory a for the superco...
filling of and bands with electrons is achieved by intercalation of alkali metals and alkaline earth metals to solids a respectively a nevertheless a understanding of the of superconductors of is extremely poor in comparison with the well known superconductors a
907
suppose that you have an abstract for a scientific paper we investigate the evolution of the roman spectrum of defected grapheme as a function of doping a polymer electrolyte gating allows us to move the fermi level up to 0.7ev a as monitored by a in a site a hall a effect measurements a for a given number of defects a...
we focus on stage a a the most relevant when considering the vast majority of publications dealing with grapheme production a processing and applications a in stage a the roman spectrum evolves as follows a a a a appears and the ratio of the a and a peak intensities a id/ig a a increases a a a a appears a a a all peaks...
908
suppose that you have an abstract for a scientific paper tropical algebraic geometry is a degeneration of classical geometry which loose the property of unique factorization for polynomials a in this paper we explore a structure that is known to be a semi a degeneration between the classical algebra and the tropical al...
, a a izhakian has built a structure that defines the sum of two equal elements as a ghost a element a and treats these ghosts as zeros since we want to view them as roots a a further research led izhakian and owen a excite a to the idea of a graded algebra a not only
909
suppose that you have an abstract for a scientific paper we numerically construct the bps and non a bps wavefunctions of an quiver quantum mechanics with two belgian nodes and a single arrow a this model captures the dynamics of a pair of wrapped a a brands interacting via a single light string mode a a dimensionless p...
the relative separation between the brands lives in a vector multiple and the lightest stretched string mode lives in a chiral multiple a these models have proven fruitful playgrounds for the study of supersymmetric black hole bound states at weak coupling excite a
910
suppose that you have an abstract for a scientific paper we discuss israel layers collapsing inward from rest at infinity along schwarzschild a lemaitre geodesics a the dynamics of the collapsing layer and its equation of state are developed a there is a general equation of state which is approximately polytropic in th...
the israel junction conditions, find wide application because they provide a simple dynamic boundary description for a variety of scenarios excite a the use of layers as boundaries between standard metrics has been summarized by unsold excite a and there is a growing literature that applies the thin shell formalism to ...
911
suppose that you have an abstract for a scientific paper we carry out a model independent study of resonant photon scattering off dark matter a do a particles a the do particle can feature an electric or magnetic transition dipole moment which couples it with photons and a heavier neutral particle a resonant photon sca...
we show that this resonant scattering might result in peculiar absorption features in the spectrum of distant sources a this effect can occur if the extension of the standard model of particle physics required to accommodate a a neutral a do particle candidate also encompasses a a a a second a heavier neutral particle ...
912
suppose that you have an abstract for a scientific paper we investigate hadron production and transverse hadron spectra in nucleus a nucleus collisions from a to 21.3 within two independent transport approaches a urged and had a based on quark a quark a string and harmonic degrees of freedom a the enhancement of pion p...
furthermore a as has been proposed early by rafelski and miller excite the strangeness degree of freedom might play an important role in distinguishing harmonic and harmonic dynamics a in fact a estimates based on the broken formula excite for the energy density achieved in central aura collisions suggest that the crit...
913
suppose that you have an abstract for a scientific paper high a statistics data on near a horizontal muons collected with russian a italian coordinate detector decor are analysed a precise measurements of muon angular distributions in zenith angle interval from 60 to 90 have been performed a in total a more than of mil...
regions of measurements of muon spectrum at large zenith angles are presented in fig a it is remarkable that for threshold energies from a get to of get and zenith angles 60 muon intensity data are absent a to explore this region
914
suppose that you have an abstract for a scientific paper the physical meaning of the levi a civil peacetime a for some critical values of the parameter a is discussed in the light of gedanken experiments performed with gyroscopes circumventing the axis of symmetry a the fact that corresponds to flat space described fro...
one of them a has to do with the topology of peacetime and a more specifically a refers to the deficit angle a it may accordingly be related to the gravitational analog of aharonov bomb effect excite a excite a
915
suppose that you have an abstract for a scientific paper the reference rooms for messy ii has been set up with a device oriented data model a this has proven adequate for edge template based red generation a modelling etc a but since assigned i a of channels have been stored outside the database a a a numerous specific...
today a challenge is a central repository of reference and configuration data as well as an appropriate standard suite of do applications a target is a management system providing consistency in a programmable a comprehensible and automatic way for development a test and production phases of the control system a instea...
916
suppose that you have an abstract for a scientific paper new exact vacuum solutions with various singularities in the plane a symmetric peacetime are shown a and they are applied to the analysis of inhomogeneous cosmological models and colliding gravitational waves a one of the singularities can be true null singularit...
studies on impulsive colliding gravitational waves were developed by chandrasekhar and his collaborators a a a who treated not only vacuum cases but also the cases with fluids and electromagnetic fields a and derived also the solutions with a time a like singularity a yurtsever a a a derived solutions which tend to the...
917
suppose that you have an abstract for a scientific paper we examine the statics and dynamics of particles with repulsive yukawa interactions in the presence of a two a dimensional triangular substrate for fillings of up to twelve particles per potential minimum a we term the ordered states yukawa cluster crystals and s...
these experiments show that the substrate strength strongly influences the type of colloidal structure that forms and that as the substrate strength increases a the resulting enhancement of fluctuations can induce a transition from crystalline to smectic order excite a numerous different colloidal crystalline structure...
918
suppose that you have an abstract for a scientific paper we measured the angular diameter of the lithium a rich a giant star he 148293 using georgia state university a center for high angular resolution astronomy a chart a array interferometer a we used our measurement to calculate the star a effective temperature a wh...
a a a a a a a a a a a a
919
suppose that you have an abstract for a scientific paper a novel protocol a measurement a device a independent quantum key distribution a mid a and a a removes all attacks from the detection system a the most vulnerable part in and implementations a in this paper a we present an analysis for practical aspects of mid a ...
in particular a an eavesdropper a eve a may exploit these imperfections and launch specific attacks a this is commonly called quantum hacking a the first successful quantum hacking against a commercial and system was the time a shift attack excite based on a proposal in excite a
920
suppose that you have an abstract for a scientific paper we study the single site dynamics in stochastic particle systems of misanthrope type with bounded rates on a complete graph a in the limit of diverging system size we establish convergence to a markova non a linear birth death chain a described by a mean a field ...
a we provide a rigorous derivation of this equation for misanthrope a type processes excite with bounded jump rates and homogeneous initial conditions on a complete graph a the limit equation describes the dynamics of the fraction a a of lattice sites with a given occupation number a and also provides the master equati...
921
suppose that you have an abstract for a scientific paper in this paper a we show that the time evolution of the bloch vector governed by the thermal haynes a cummings model is equivalent to a compressible inviscid flow with zero vorticity a because of its quasiperiodicity a the dynamics of the bloch vector includes cou...
one of the most remarkable properties of the jim is a phenomenon of collapse and revival of rabi oscillations a if we put the cavity field into the coherent state initially a the jim shows the spontaneous periodic collapse and revival of the rabi oscillations in the atomic population inversion during its time evolution...
922
suppose that you have an abstract for a scientific paper we investigate the problem of determining the parameters that describe a quantum channel a it is assumed that the users of the channel have at best only partial knowledge of it and make use of a finite amount of resources to estimate it a we discuss simple protoc...
the information is encoded in quits a if the quits are perfectly protected from environmental influence a bob receives them in the same state prepared by alice a in the more realistic case a however a the quits have a nontrivial dynamics during the transmission because of their interaction with the environment excite a...
923
suppose that you have an abstract for a scientific paper any viable cosmological model must produce enough structure at early epochs to explain the amount of gas associated with high a redshift systems a we study the evolution of systems at redshifts in cold dark matter a cd a and cold+hot dark matter a cdm+hdm a model...
1995 a a at still higher redshifts a a recent optical spectroscopy of of quasars indicates a decline in a store a lombardi it al a
924
suppose that you have an abstract for a scientific paper the construction of the semiclassical trace formula for the resonances with the transverse electric a the a polarization for two a dimensional dielectric cavities is discussed a special attention is given to the derivation of the two first terms of well a series ...
the wavelength of electromagnetic field is usually much smaller than any characteristic cavity size a except its height a and semiclassical techniques are useful and adequate for a theoretical approach to such objects a it is well known that the trace formulas are a very powerful tool in the semiclassical description o...
925
suppose that you have an abstract for a scientific paper the production of all identified hadrons at the corn large hadron collider a lac a is studied with emphasis on the distributions up to of get a a in central collisions a in the framework of the recombination model we find that the shower parsons a due to the frag...
the situation may have changed at the corn large hadron collider a lac a a where pm a pm collisions have been carried out at tel a resulting in thousands of soft hadrons on the one hand a and multiple hard jets on the other a mindsets that are copiously produced at intermediate can fragment into soft parsons with multi...
926
suppose that you have an abstract for a scientific paper we present the first detection of n towards a low a mass protostellar outflow a namely the l1157-b1 shock a at 0.1 pc from the protostellar cocoon a the detection was obtained with the iraq 30-m antenna a we observed emission at of ghz due to the a of hyperfine l...
2001 a is an ideal laboratory to observe the effects of such shocks on the gas chemistry a l1157 is driven by a low a mass a a a class a protester l1157-mm and it is associated with several blue a shifted a by a by a by a and red a shifted a re a re a re a shocks at different ages a see fig a a mapstop panel a a and se...
927
suppose that you have an abstract for a scientific paper basis set convergence of the hatred a rock and the correlation energy is examined for the hydrogen bonded a infinite a bent chains a hf and a hcl a we employ series of correlation consistent basis sets up to quintuple quality together with a coupled cluster metho...
excite a towards the basis set limit a but molecular correlation energies turn out to converge only with the third power of the highest angular momentum employed in the basis sets excite a the convergence properties of the hatred a rock and the correlation energy can be exploited to extrapolate hatred a rock excite and...
928
suppose that you have an abstract for a scientific paper an established phenomenology and theoretical interpretation ofcollision data at lower collision energies should provide a reference forand other collision systems at higher energies a against which claims of novel physics may be tested a the description ofcollisi...
a my a diet a mindset a production manifested in spectra and angular correlations excite and a a a possible existence and phenomenology of a a nonet azimuth quadrupole a component in cd angular correlations previously studied in collisions a as quantity a excite a especially in connection with a claimed same a side rid...
929
suppose that you have an abstract for a scientific paper it is shown how any lindbladian evolution with selfadjoint sindbad operators a either markova or nonmarkovian a can be understood as an averaged random unitary evolution a both mathematical and physical consequences are analysed a first a simple and fast method t...
this environmental action has received a careful mathematical treatment a of a excite and multiple references therein a going from a constructive approach based on disregarding the degrees of freedom of the environment due to their lack of control by the experimenter a of tracing a out of methods a to an axiomatic appr...
930
suppose that you have an abstract for a scientific paper we study the andrew edge states with different pairing symmetries and boundary topologies on semi a infinite triangular lattice of na a a general mapping from the two dimensional lattice to the one dimensional tight a binding model is developed a it is shown that...
the carrier density in the sodium cobalt oxide can be tuned by the a concentration a by changing the sodium doping a a rich phase diagram appears and the superconductivity occurs in the doping regime a
931
suppose that you have an abstract for a scientific paper we determine the transfer functions of two kinds of filters that can be used in the detection of continuous gravitational radiation a the first one optimizes the signal a to a noise ratio a and the second reproduces the wave with minimum error a we analyse the be...
have excite a even though the more sensitive detector now operating excite is capable to detect amplitudes near a this value must be decreased by several orders of magnitude so that impulsive waves can be detected regularly a on the other hand a
932
suppose that you have an abstract for a scientific paper a simple effective model for a description of magnetically ordered insulators is analysed a the tight binding hamiltonian consists of the effective on a site interaction a a and intensive magnetic exchange interactions a a a between nearest a neighbours a the pha...
denotes the creation operator of an electron with spin at the site a a and a the chemical potential depending on the concentration of electrons is calculated from with and is the total number of lattice sites a the model a a row a a can be treated as an effective model of magnetically ordered insulators a the interacti...
933
suppose that you have an abstract for a scientific paper we have analysed numerically the localization length of light for nearly periodic arrangements of homogeneous stacks a formed exclusively by right a handed materials a and mixed stacks a with alternating right and left a handed metamaterials a a layers with index...
regarding the localization length in disordered systems a the presence of negative refraction in one a dimensional a cd a disordered metamaterials strongly suppresses anderson localization excite a as a consequence a an unusual behavior of the localization length at long a wavelengths has been observed a
934
suppose that you have an abstract for a scientific paper motivated by the physical relevance of a spectral singularity of interacting many a particle system a we explore the dynamics of two bosons as well as fermions in one a dimensional system with imaginary delta interaction strength a based on the exact solution a i...
non a herminia hamiltonian can possess peculiar feature that has no herminia counterpart a a typical one is the spectral singularity a or exceptional point for finite system a a which is a mathematic concept a
935
suppose that you have an abstract for a scientific paper stellar feedback is often cited as the biggest uncertainty in galaxy formation models today a this uncertainty stems from a dearth of observational constraints as well as the great dynamic range between the small scales a pc a where the feedback originates and th...
a harmonic matter cools rapidly and efficiently forms stars a producing an order of magnitude too much stellar mass and consuming most available gas in the galaxy a edge a excite a a stellar feedback prevents this of cooling catastrophe of by heating gas as well as removing low angular momentum baryons from galactic ce...
936
suppose that you have an abstract for a scientific paper we propose to use a quantized version of coherent two a color photoassociation to realize a hybrid device for quantum control of light a the dynamical features of this system are exhibited a including the slowing down or storage of light and the molecular matter ...
such processes will provide new insights on current efforts of optical a or quantum superchemistry with the goal of designing a hybrid atom a molecule device for quantum control of photonic information a in this work we study such a scenario by transferring the quantum state of an associating light to an atom a internu...
937
suppose that you have an abstract for a scientific paper the problem of how single central a spins interact with a nuclear spin bath is essential for understanding coherence and relaxation in many quantum systems a yet is highly nontrivial owing to the many a body couplings involved a different models yield widely vary...
the sample contains of layers of ads a separated by of no gas barriers a each layer contains qds/ a although not intentionally doped a these ads are weakly a p--type due to background carbon doping a we estimate that % of the ads contain a single resident hole a
938
suppose that you have an abstract for a scientific paper controlled generation of entangled states of two quantum bits is a fundamental step toward the implementation of a quantum information processor a in nan a devices this operation is counteracted by the solid a state environment a characterized by broadband and no...
the requirements for building an elementary quantum processor are however quite demanding on the efficiency of the protocols a this includes both a severe constraint on readout and a sufficient isolation from fluctuations to reduce coherence effects a
939
suppose that you have an abstract for a scientific paper global transposable characteristics in the complete dan sequence of the saccharomyces cevevisiae yeast is determined by using the metric representation and recurrence plot methods a in the form of the correlation distance of nucleotide strings a of chromosome seq...
the distance between two dan sequences depending on the length of nucleotide strings was presented and the horizontal transfers in prokaryotes and eukaryotes were detected and charaterized a recently a a one a to a one metric representation of the dan sequences a which was borrowed from the symbolic dynamics a makes an...
940
suppose that you have an abstract for a scientific paper pour lastrophysicien que abode be puzzle de la mature noise a cell a i apparel sous deus aspects different a dune part in cosmologies a best a a dire try grades helles a of else kemble the form dun main de particles a it date part michelle de galaxies a of else e...
non baryonique a it do it nous be connaissons pas la nature a it les 73% que resent a
941
suppose that you have an abstract for a scientific paper we present results from the photometric and spectroscopic identification of 122 a a ray sources recently discovered by hmm a newton in the a a of key band a the hellas2xmm of sample a a one of the most interesting results a which is found also in deeper surveys a...
quantitatively a though a rather surprising results are emerging a a rather narrow peak in the range z=0.7 a a is present in the redshift distributions from ultra a deep chandra and hmm a newton pencil a beam surveys a in contrast to the broader maximum observed in previous shallower soft a a ray surveys made by rosa a...
942
suppose that you have an abstract for a scientific paper we study numerically the effect of sequence heterogeneity on the thermodynamic properties of a poland a schemata model for dan denaturation taking into account self a avoidance a a item a with exponent for the loop length probability distribution a in complement ...
this field a very active in the sixties and seventies a has benefited recently from a renewed interest both from the biological side a for example in the context of genomic analysis a and from the physics side a notably in relation with questions relevant to the order of the transition in the homogeneous case and the e...
943
suppose that you have an abstract for a scientific paper i constrain a possible supernova origin for gamma a ray bursts by modelling the dynamical interaction between a relativistic jet and a stellar envelope surrounding it a the delay in observer a time introduced by the jet traversing the envelope should not be long ...
however these are often equally well explained by a collimated flow in a uniform medium a a a ray lines have been detected with moderate confidence in about half the afterglows for which they were investigated excite a however a the data analysis has been questioned a see a a a a
944
suppose that you have an abstract for a scientific paper double parton scattering a dps a is studied at the example of pair a production in the lab and atlas experiments of the large hadron collider a lac a at centre a of a mass energies of a a a and of tel a we report theoretical predictions delivered to the lab and a...
in particular a double parton scattering a dps a a where two distinct parton interactions arise from the same proton a proton collision a can become likely enough to compete with single parton scattering a spa a processes a see fig a a fig a dpsfeyn a a
945
suppose that you have an abstract for a scientific paper few a body systems a such as cold atoms and halo nuclei a share universal features at low energies a which are insensitive to the underlying inter a particle interactions at short ranges a these low a energy properties can be investigated in the framework of effe...
the small length scale is represented by the range of two a body interactions a in the limit a physics at the scale of is disentangled from physics at the scale of a and is therefore insensitive to the details of the short a range interactions a
946
suppose that you have an abstract for a scientific paper i explore entanglement dynamics in a three quit system comparing the ability of entanglement witnesses to detect try a partite entanglement to the phenomenon of entanglement sudden death a esd a a using a system subject to phasing i invoke entanglement witnesses ...
coherence may be especially detrimental to highly non a classical a and hence most potentially useful a entangled states excite a a manifestation of this is entanglement sudden death a esd a in which entanglement is completely lost in a finite time excite despite the fact that the coherence loss of the system is asympt...
947
suppose that you have an abstract for a scientific paper we report detailed studies of the a susceptibility butterfly hysteresis on the ru1222 ruthenocuprate compounds a two separate contributions to these hysteresis have been identified and studied a one contribution is ferromagnetic a like and is characterized by the...
measurements of microwave absorption excite a a susceptibility excite a nor excite have shown an evidence of the spontaneous vortex phase as an explanation for the coexistence of the superconductivity and magnetism below so transition around of of on the other hand a due it al a excite have suggested the nanoscale sepa...
948
suppose that you have an abstract for a scientific paper we deal with the asymptotic behavior of the -perimeter of a set inside a domain as a we prove necessary and sufficient conditions for the existence of such limit a by also providing an explicit formulation in terms of the lebesgue measure of and a moreover a we c...
we refer to excite for an introductory review on this subject a the limits as and are somehow the critical cases for the -perimeter a since the functional in diverges as it is a nevertheless a when appropriately rescaled a these limits seem to give meaningful information on the problem a
949
suppose that you have an abstract for a scientific paper we report and discuss case study simulations of the rayleigh a taylor instability in the boussinesq a incompressible regime developed to turbulence a our main focus is on a statistical analysis of density and velocity fluctuations inside of the already developed ...
further development of the instability leads to enhancement of the mixing and to a gradual increase of the mixing zone a which is the domain where proportions of heavy in light and light in heavy are comparable a dimensional arguments a supported by large a scale modelling excite a suggest that the half a width of the ...
950
suppose that you have an abstract for a scientific paper diverse models of engines energised by quantum a coherent a hence non a thermal a baths allow the engine efficiency to transgress the standard thermodynamic carnot bound a these transgressions call for an elucidation of the underlying mechanisms a here we show th...
the main questions we raise here are a does the same division between heat and work necessarily hold in engines fuelled by non a thermal a quantum a coherent a baths and how does this division affect the engine efficiency a to what extent is the quantum character of non a thermal baths and a or a the of relevant to the...
951
suppose that you have an abstract for a scientific paper we perform an exact enumeration study of polymers formed from a a quenched a random sequence of charged monomers a such polymers a known as polyampholytes a are compact when completely neutral and expanded when highly charged a our exhaustive search included all ...
the energy of the polymer is determined by the van der walls a hydrogen bonding a hydrophobic a hydrophilic a and coulomb interactions between its constituent amino acids a in accord to these interactions a the protein folds into a specific shape that is responsible for its activity a
952
suppose that you have an abstract for a scientific paper the chaotic sea below the lowest energy spanning curve of the complete fermi a slam model a fum a is numerically investigated when the amplitude of oscillation of the moving wall is small a we use scaling analysis near the integrable to non a integrable transitio...
the ball collides elastically with the walls and the system is described by an area preserving map a in high energies regime the phase space presents kolmogorov a arnold a moses a am a islands surrounded by locally chaotic regions a which are limited by spanning curves a below the invariant spanning curve of lower ener...
953
suppose that you have an abstract for a scientific paper the dynamical instability of new a born neutron stars is studied by evolving the linearized hydrodynamical equations a the neutron stars considered in this paper are those produced by the accretion induced collapse of rigidly rotating white dwarfs a a dynamical b...
rotational instabilities arise from non a asymmetric perturbations having angular dependence a where is the azimuthal angle a the mode is called the bar mode a which is usually the strongest mode for stars undergoing instabilities a
954
suppose that you have an abstract for a scientific paper an a a into a hatred a rock approach aimed at directly obtaining the localized orthogonal orbitals a pannier functions a of a crystalline insulator is described in detail a the method is used to perform all a electron calculations on the ground states of crystall...
it can be shown that the two approaches of description of an infinite solid are completely equivalent and that the two types of orbitals are related by a unitary transformation excite a therefore a the two approaches differ only in terms of their practical implementation
955
suppose that you have an abstract for a scientific paper consider the celebrated less recurrence with a first we prove that there exist initial conditions and values of for which it generates periodic sequences of rational numbers with prime periods or and that these are the only periods that rational sequences can hav...
however there are still some open problems concerning the dynamics of rational points a with the computer experiments in mind a and following excite a it is interesting to know the existence of rational periodic sequences a the less map associated to a leaves invariant the elliptic curves and the curve is not elliptic ...
956
suppose that you have an abstract for a scientific paper synchrotron radiation a a ray absorption and emission spectroscopy techniques a complemented by high a resolution transmission electron microscopy methods and density functional theory calculations are employed to investigate the effect of in in al a in samples w...
recent findings excite indicate this alloy as particularly interesting for a edge a the self a assembling of functional multilayer and for having revealed the decisive role of in as surfactant during the epitaxial growth of al a in a considerably enhancing the critical thickness of al a in on gan a and opening new pers...
957
suppose that you have an abstract for a scientific paper these lecture notes provide an introduction to my a submit extragalactic astronomy a focused on an studies a with the final goal of preparing students to their future exploitation of the alma capabilities a i first provide an overview of the current results obtai...
the limited familiarity with my a submit facilities and observations may prevent them to fully exploit the alma capabilities in the future a these lecture notes are aimed at providing students and young researches some background on my a submit extragalactic astronomy a with a focus on the investigation of ages a
958
suppose that you have an abstract for a scientific paper we present calculations of the exchange interactions and curie temperatures in or a based pnictides and chalcogenides of the form cry with a a as a so a a a be and the a and the mixed alloys cras with a a so a a a be a and the a the calculations are performed for...
theoretical calculations by okinawa excite and several other theoretical calculations since then excite have verified the half a metallic character of cars a the high value of has also been supported by some of these studies a
959
suppose that you have an abstract for a scientific paper selected topics on precision tests of the standard model of the electroweak and the strong interaction at the let collider are presented a including an update of the world summary of measurements of a representing the state of knowledge of summer 1999 a this writ...
they are described by quantum field theories a quantum chromodynamics a cd a for the strong a quantum a electrodynamics a red a for the electromagnetic and the so a called standard model of the unified electro a weak interactions excite a the weakest force of the four a gravitation a is the major player only at large d...
960
suppose that you have an abstract for a scientific paper a microscopic calculation of the perpendicular current in doped multiple quantum wells is presented a interface roughness is shown to affect the resonant transitions as well as to cause a nonresonant background current a the theoretical characteristics exhibit se...
while these approaches assume interwell transition rates which are either fitted or obtained from phenomenological models a we have recently proposed a way to calculate the transport microscopically excite a we obtained good quantitative agreement with the experimental data of ref a
961
suppose that you have an abstract for a scientific paper high a accuracy astrometry permits the determination of not only stellar tangential motion a but also the component along the line a of a sight a such non a spectroscopic a item astrometry a radial velocities are independent of stellar atmospheric dynamics a spec...
conversely a the differences between spectroscopic and astrometry radial velocities may provide information on these phenomena that can not be obtained by other methods a although the theoretical possibility of deducing astrometry radial velocities from geometric projection effects was noted already at the beginning of...
962
suppose that you have an abstract for a scientific paper dust ion acoustic solitary structures have been investigated in an magnetized nonthermal plasma consisting of negatively charged dust grains a adiabatic positive ions and nonthermal electrons a for isothermal electrons a the present plasma system does not support...
shula and jilin excite were the first to show that due to the quasi neutrality condition and the strong inequality a a a and are a respectively a the number density of electrons a ions a and dust particles a where is the number of electrons residing on the dust grain surface a a a dusty plasma a with negatively charged...
963
suppose that you have an abstract for a scientific paper a proximity focusing ring imaging cherenkov detector using aerosol as the radiator has been studied for an upgrade of the belle detector at the key a a a factory a we constructed a prototype cherenkov counter using a array of 64-channel flat a panel multi a anode...
is operated a providing at a kaon identification efficiency of % with a pion misidentification probability of % excite a a new production method of hydrophobic aerosol with a high transmission length and in the interval between and was developed during the construction period of belle a acc excite a
964
suppose that you have an abstract for a scientific paper the problem of the nonequivalence of the sets of equilibrium points and energy a kashmir extrema points a which occurs in the noncanonical hamiltonian formulation of equations describing ideal fluid and plasma dynamics a is addressed in the context of the euler e...
it was noted that this kashmir deficit is attributable to rank changing of the operator that defines the noncanonical poisson bracket a thus a a mathematical study of the kernel of this operator is indicated a and this is the main purpose of the present article a recognizing a hamiltonian flow as a differential operato...
965
suppose that you have an abstract for a scientific paper we describe a method for calculating the probability with which the wall of a plasma absorbs an electron at low energy a the method a based on an invariant embedding principle a expresses the electron absorption probability as the probability for transmission thr...
this is only due partly to unresolved materials science aspects a such as a chemical contamination indoor mechanical destruction of the surface by the plasma a it is also because little is known fundamentally about the interaction of electrons with surfaces at the energies relevant for plasma applications a
966
suppose that you have an abstract for a scientific paper intermediate mass stars occupy the mass range between 0.8 a a a in this contribution a evolutionary models of these stars from numerous sources are compared in terms of their input physics and predicted yields a in particular a the results of renting a vol a van ...
is evolution is an interesting and complex subject and the literature is extensive a a good a complete a generally accessible review of the subject is given by ben a 1995 a a
967
suppose that you have an abstract for a scientific paper we calculate the nucleon parameters in isospin symmetric and asymmetric nuclear matter using the cd sum rules a the higher moments of the nucleon structure functions are included a the complete set of the nucleon expectation values of the four a quark operators i...
being initially used for the mesons a the method was expanded in excite to the description of the baryons a the approach succeeded in describing the static characteristics as well as some of the dynamical characteristics of the hadrons in vacuum see a the reviews excite a
968
suppose that you have an abstract for a scientific paper many natural language processing a nip a tasks can be generalized into segmentation problem a in this paper a we combine semi a cry with neural network to solve nip segmentation tasks a our model represents a segment both by composing the input units and embeddin...
compared with sequence labelling model a models that directly represent segment are attractive because they are not bounded by local tag dependencies and can effectively adopt segment a level information a semi a markov cry a or semi a cry a excite is one of the models that directly represent the entire segment a in se...
969
suppose that you have an abstract for a scientific paper two a photon photoassociation of hot magnesium atoms by femtosecond laser pulses a creating electronically excited magnesium dimer molecules a is studied from first principles a combining a a into a quantum chemistry and molecular quantum dynamics a this theoreti...
it is natural to ask why the reverse process of controlling binary reactions is so much more difficult a the main difference between bimolecular processes and a binary reaction lies in the initial state a single or few well a defined bound quantum states is an incoherent continuum of scattering states. for a binary rea...
970
suppose that you have an abstract for a scientific paper we study an appeal hypergeometric system of rank four which is reducible and show that its schwartz map admits geometric interpretations a the map can be considered as the universal abel a jacobi map of a -dimensional family of curves of genus a a a and you have ...
we study in this paper appeal a hypergeometric system of rank four when its parameters satisfy or a in this case a the system is reducible a and has a -dimensional subsystem isomorphic to appeal a a proposition a prop a so a a a if then has two such subsystems a by proposition a prop a so a a a the intersection of thes...
971
suppose that you have an abstract for a scientific paper we derive a semi a analytic solution for the structure of conduction a mediated transition layers above an a a ray illuminated accretion disk a and calculate explicitly the a a ray line radiation resulting from both resonance line scattering and radiative recombi...
detailed calculations were then carried out by excite and excite a however a in all of these papers a the density of the illuminated material was assumed to be constant along the vertical direction a this assumption applies only to the simplest version of radiation a dominated shaker a sundae disks excite a and only fo...
972
suppose that you have an abstract for a scientific paper we present the first results of a survey of the emission line in 241 luminous infrared galaxies a lings a comprising the great observatories all a sky survey a goals a sample a obtained with the pics instrument on board the a herschel space observatory the lumino...
this fine a structure line arises from the transition a a of single ionized carbon atoms a ionization potential=11.26ev and critical density a a a which are predominantly excited by collisions with neutral hydrogen atoms a or with free electrons and protons in regions where a excite a a ultraviolet a us a photons with ...
973
suppose that you have an abstract for a scientific paper we study the distribution function of the three dimensional warlike chain with a fixed orientation of one chain end using the exact representation of the distribution function in terms of the green a function of the quantum rigid rotator in a homogeneous external...
the standard coarse a training model of a warlike polymer was proposed by kathy and prod excite a the essential ingredients of this model are the penalty for the bending energy and the local extensibility a
974
suppose that you have an abstract for a scientific paper a graph is closed when its vertices have a labelling by a a with a certain property first discovered in the study of binomial edge ideals a in this article a we prove that a connected graph has a closed labelling if and only if it is chordal a claw a free a and h...
finally a a graph is a closed a if it has a closed labelling a a labelling of gives a direction to each edge where the arrow points from to when a item a the arrow points to the bigger label a
975
suppose that you have an abstract for a scientific paper the advent of ultrahigh a power femtosecond lasers creates a need for optical components suitable to handle ultrahigh light intensities a due to the unavoidable laser a induced ionization of matter a these components will have to be based on a plasma medium a an ...
the derivations of all formulas and their validation by particle a in a cell a pic a simulations are provided in the online supplementary information a qualitatively a the plasma electrons respond to the laser field as a spring a being alternatively pushed inside a and pulled outside of the ion background in each optic...
976
suppose that you have an abstract for a scientific paper we present the results of a machine a learning a my a based search for new a corona boreal a rob a stars and by perseid a like stars a dyers a in the galaxy using catalogued light curves from the all a sky automated survey a ass a catalogue of variable stars a ac...
the lack of hydrogen and overabundance of carbon in rob atmospheres implies that rob stars are in a late stage of stellar evolution a but no consensus has yet emerged regarding their true physical nature a there are two leading theories for explaining the observed properties of rob stars a the double degenerate a do a ...
977
suppose that you have an abstract for a scientific paper we present accurate -band photometry for a planetary transit of ogle a tr-111 acquired with limos at the so very large telescope a the measurement of this transit allows to refine the planetary radius a obtaining a given the mass of previously measured from radia...
in addition a if accurate photometry of transits is available a one can use timing for future studies of multiplicity in these systems a edge sartoretti a schneider 1999 a miranda a escudo 2002 a holman a murray 2005 a ago it al a 2005 a a
978
suppose that you have an abstract for a scientific paper in this article i review the main theoretical problems that are posed by the highest energy end of the observed cosmic ray spectrum a stressing the importance of establishing their composition in order to decide between proposed scenarios a i then discuss the pos...
the high energy tail of the spectrum as it is known today corresponds to energies up to a and rates of a few particles per km per century a it is remarkable that the cosmic rays have a quite featureless power law energy spectrum which decreases as approximately the cube of the primary energy a for energies above the fe...
979
suppose that you have an abstract for a scientific paper the late a type galaxy not 4303 a my a is one of the most intensively studied barred galaxies in the virgo cluster a its prominent enhanced star formation throughout large areas of the disk can be nicely studied due to its low inclination of about of a we present...
observations reveal a correlation between the radial abundance gradient and the strength of the bar a martin a roy excite a friendly it al a excite a martinet a friendly excite a a
980
suppose that you have an abstract for a scientific paper the complex structure of the light curves of a swift a grabs has made their interpretation and that of the blast wave caused by the burst a more difficult than in the pre--swift a era a we aim to constrain the blast wave parameters a electron energy distribution ...
the unexpected features detected a such as steep decays a plateau phases a edge a excite a and a large number of a a ray flares a edge a excite a have revealed the complexity of these sources up to about one day since the initial event a which is yet to be fully understood a these superimposed features also make it dif...
981
suppose that you have an abstract for a scientific paper we discuss an exact analytical solution of a simplified version of the statistical multifragmentation model with the restriction that the largest fragment size can not exceed the finite volume of the system a a complete analysis of the isobaric partition singular...
this method opens a principally new possibility to study the nuclear liquid a gas phase transition directly from the partition of finite system and without taking its thermodynamic limit a exactly solvable models with phase transitions play a special role in the statistical physics a they are the benchmarks of our unde...
982
suppose that you have an abstract for a scientific paper a massive star can enter the blue supergiant region either evolving directly from the main a sequence a or evolving from a previous red supergiant stage a the fractions of the blue supergiants having different histories depend on the internal mixing and mass a lo...
excite a results indicate the lower bound to be about 20m a the mass limit is lowered if higher mass a loss rates in the reg phase is assumed excite a
983
suppose that you have an abstract for a scientific paper in this paper a we present methods for image compression on the basis of eigenvalue decomposition of normal matrices a the proposed methods are convenient and self a explanatory a requiring fewer and easier computations as compared to some existing methods a thro...
image compression a which deals with reducing the size of an image a or any other multimedia a file can be used a image compression actually refers to the reduction of the amount of image data a bits a required for representing a digital image without causing any major degradation of the image quality a by eliminating ...
984
suppose that you have an abstract for a scientific paper a clear understanding of body force densities due to external electromagnetic fields is necessary to study flow and deformation of materials exposed to the fields a in this paper a we derive an expression for stress in continua with viscous and elastic properties...
helmholtz and korteweg first calculated the body force density in a newtonian dielectric fluid in the presence of an electric field a in the late nineteenth century a however a their analysis was criticized by larger a livens a einstein and lab a who favoured a different expression proposed by lord kelvin a
985
suppose that you have an abstract for a scientific paper laser cooling and trapping are now widely used in atomic physics laboratory a interestingly a cold atoms in optical lattices are now used in advanced research to mimic phenomena in condensed matter physics and also as a test laboratory for the models of these phe...
thus in simple form a an optical lattice looks effectively like an egg carton where the atoms a like eggs a can be be arranged one per well to form a crystal of quantum matter excite a though the cold atoms in optical lattices was initially used to investigate quantum behaviour such as bloch oscillations a pannier a st...
986
suppose that you have an abstract for a scientific paper we present a continuum model for the propagation of cracks and fractures in brittle materials a the components of the strain tensor are the fundamental variables a the evolution equations are based on a free energy that reduces to that of linear elasticity for sm...
the problem is solved for a fixed position of the interface a and based on this a the expected evolution of the interface in the following time step is calculated a and the process repeated a this method has the practical drawback that the different structure of the interface at each time step makes necessary the full ...
987
suppose that you have an abstract for a scientific paper we present a fully nonlinear calculation of the waveform of the gravitational radiation emitted in the fission of a vacuum white hole a at early times a the waveforms agree with close approximation perturbative calculations but they reveal dramatic time and angul...
alternatively a in the purely vacuum approach a the individual black holes form from imploding gravitational waves a this avoids hydrodynamical difficulties at the expense of a globally complicated initial value problem a
988
suppose that you have an abstract for a scientific paper using a markov chain monte carlo approach a we find the allowed parameter space of a mss model with seven free parameters a in this model universality conditions at the gut scale are imposed on the gauging sector a we require in particular that the relic density ...
the precise determination of the do relic density from cosmology excite a the latest results from the betatron excite and the precision measurements a large regions of the parameter space of the supersymmetric models are being probed a this will continue in the near future with a number of direct and indirect detection...
989
suppose that you have an abstract for a scientific paper we investigate torsional allen oscillations of relativistic stars with a global dipole magnetic field a via two a dimensional numerical simulations a we find that a a there exist two families of quasi a periodic oscillations a pos a with harmonics at integer mult...
this observation is in support of the proposal that sirs are magnets a compact objects with very strong magnetic fields a excite a during an sir event a torsional oscillations in the solid crust of the star could be excited excite a leading to the observed frequencies in the a a ray tail a
990
suppose that you have an abstract for a scientific paper we present results from two observations of the cosmic microwave background a cab a performed from the south pole during the 1993 a 1994 austral summer a each observation employed a 3 peak to peak sinusoidal a single difference chop and consisted of a strip on th...
the results from our 1988 a of measurements are detailed in reinhold and rubin a 1991 a spa a and reinhold it al a a 1993 a sp89b a while the results from the 1990 a of measurements are detailed in gamer it al a a 1992 a spa a and cluster it al a a 1993 a sp91b a a
991
suppose that you have an abstract for a scientific paper we derive suitable uncertainty relations for characteristics functions of phase and number variables obtained from the well form of commutation relations a this is applied to finite a dimensional spin a like systems a which is the case when describing the phase d...
a this approach is not always useful a on the one hand a variance may not be a suitable uncertainty measure a this is specially clear regarding periodic phase a angle variables excite a on the other hand a
992
suppose that you have an abstract for a scientific paper for planar integrable billiards a the eigenstates can be classified with respect to a quantity determined by the quantum numbers a given the quantum numbers as a the index which represents a class is for a natural number a a we show here that the entire tower of ...
the nodal lines are straight lines and they form a checkerboard pattern a this would be the case also for a product of any other special function a
993
suppose that you have an abstract for a scientific paper improved wavelength calibrators for high a resolution astrophysical spectrographs will be essential for precision radial velocity a re a detection of earth a like exoplanets and direct observation of cosmological deceleration a the castro a comb is a combination ...
for example a the re amplitude of the reflex motion of a solar a mass star induced by an earth a mass planet in an orbit within the habitable zone is about of pm a a a the current state of the art astrophysical spectrograph a harps a has demonstrated stellar re sensitivity pm a a excite a largely limited by its thorium...
994
suppose that you have an abstract for a scientific paper we perform a series of high resolution a a body simulations designed to examine the density profiles of dark matter halos a from of simulated halos ranging the mass of a represented by million particles within the viral radius a a we find a clear systematic corre...
the two a point correlation function is a good example supporting this idea a on large scales it is trivially related to the primordial spectrum of mass fluctuations a a furthermore the effective power a law index of the two a point correlation function on sufficiently small scales is related to the initial power a law...
995
suppose that you have an abstract for a scientific paper we present a comparative study of radiative electroweak a symmetry breaking and conventional standard model breaking a and pose the question whether experiments can distinguish one breaking mode from the other a the importance of the problem lies in the fact that...
the overall conclusion is that an alternative electroweak symmetry breaking a news a mechanism exists along side the standard model news mechanism that is based on the classical tree potential a with a non a zero negative mass parameter a the coleman a weinberg alternative model dispenses with the mass parameter in equ...
996
suppose that you have an abstract for a scientific paper we present evidence for improvement with tadpole improved clover fermions based on an analysis of the chiral behavior of and the quark condensate a also presented are a comparison of the mass splittings in the baryon octet and decoupled a a calculation of using s...
a of a bow a shows the wilson and clover data as a function of a for each data set a is written as the sum of two parts the contribution of the diagonal a the loop tadpole improved a operator a and the mixing term which is proportional to a
997
suppose that you have an abstract for a scientific paper sports are spontaneous generators of stories a through skill and chance a the script of each game is dynamically written in real time by players acting out possible trajectories allowed by a sport a rules a by properly characterizing a given sport a ecology of a ...
we describe australian rules football in brief and then move on to extracting and evaluating the sport a possible game stories a early on a the game evolved into a winter sport quite distinct from other codes such as soccer or rugby while bearing some similarity to gaelic football
998
suppose that you have an abstract for a scientific paper we have analysed the magnitudes a kinematics and positions of a complete sample of 320 pcs in the elliptical galaxy not 4697 a we show a i a that the pcs in not 4697 do not constitute a single population that is a fair tracer of the distribution of all stars a th...
a a a a a a a a a a a a
999
suppose that you have an abstract for a scientific paper we generalize topless bandwidth formula to its -th moment a we obtain a closed expression in terms of polygamy a zeta and euler numbers a a a a lots a cars a faculty de sciences dorsal a university paris sud a 91405 say fedex a france a and you have already writt...
a qe=--j=0^q2a-p a q2je^2j materializes in a sososimplem-p a qe,0,0+4-1^q=-1^q e^qb-p a q1/e a so that seq a a a even a a becomes the a a with a are related to the kraft coefficients excite a one obtains a see excite a with building blocks a a 2=e^-ik-y1-e^2 i a key a a qe^ik-y1-e^-2 i a key a a q=-p a qkexpressed in t...