... of absolute differences. The computer programs in this report were written for the GAC STARAN at ETL. The parallel processor ...

monoecious herbs, Begonia hirsuta and B. se- miovata. Evolution 47: 125�135. CARR, D. E., AND M. R. DUDASH performance of selfed and outcrossed progeny in Arabis fecunda (Brassicaceae). American Journal of Botany 81

The parallel computation thesis, which states that polynomial time on a parallel machine equals polynomial space on a sequential device is discussed. This thesis is not an absolute truth for parallel models. It characterizes a specific, frequently observe...

We summarize the talks presented to the Absolute neutrino mass scale parallel session of NOW2010, mainly focused on neutrinoless double beta decay in its theoretical and experimental aspects and the role of the neutrino mass scale in cosmology.

An automatic system measures the true average shear viscosity of liquids and viscoelastic materials,

The Hawthorne interview program between 1929 and 1932 was one of the most significant industrial studies in the United States. The Hawthorne researchers applied Jean Piaget's clinical method in their extensive interviews with tens of thousands of workers. Chiefly responsible for the program's methodology was Elton Mayo, an Australian who saw interviewing as a means to promote social cooperation. ...

This book presents a thorough introduction to parallel processing systems and how they help overcome the absolute limit on the speed at which electronic devices can process instructions. The material examines the effectiveness of the ICL-distributed array processor in implementing parallel optimization algorithms. It reviews ...

Damping of the plasma toroidal velocity owing to parallel viscosity is observed in the Compact Helical System-torsatron device with tangential neutral-beam injection. The toroidal velocity profile is dominated by perpendicular viscosity when the magnetic-field modulation is weak near the axis. However, parallel viscosity is found to be dominant when the ...

A vernier offset is detected at once among straight lines, and reaction times are almost independent of the number of simultaneously presented stimuli (distractors), even if absolute orientation cues are masked by varied orientation of the verniers. This ...

Dec 24, 2003 ... Our fabric evolves because of human interactions giving rise to ... It is relatively impervious to the influence of changes at the periphery, but not absolutely so. ... of language development towards abstraction should be paralleled in ... neural responses independently of linguistic environment. ...

Whistler mode wave emissions in the magnetosheath, known as lion roars, are thought to be generated by an electron cyclotron instability. Reported satellite data are used to model a magnetosheath medium where lion roars emissions occurred, and the character, absolute or convective, of the associated electron cyclotron instability is studied. A linear hot plasma dispersion ...

. The displacement is due to the parallel dynamics. analysis of the absolute value of the correlation for each, this means that the dynamics in TJ-K is truly three- dimensional, i.e. the parallel displacement be distinguished by means of time delay and spatial displacement. #12;8 drift dynamics detection at time delay sign

The absolute hydration free energy of the proton, DGhyd298(H+), is one of the fundamental quantities for the thermodynamics of aqueous systems. Its exact value remains unknown despite extensive experimental and computational efforts. We report a first-principles determination of DGhyd298(H+) by using the latest developments in electronic structure theory and massively ...

Distributed Replica (REPDSTR) is a powerful parallelization technique enabling simulations of a group of replicas in a parallel/parallel fashion, where each replica is distributed to different nodes of a large cluster [Theor. Chem. Acc. 109: 140 (2003)]. Here, we use the framework provided by REPDSTR to combine a staged free energy perturbation protocol ...

This paper presents a detailed analysis of a sampling approach used in the partitioning of a data file for the parallel balanced tree sort in a local area network or a multiprocessor environment. The average overall time complexity for sorting N data on a kappa processor system is derived. The performance of the parallel sorting rests upon how evenly the ...

Absolute dual-parameter image reconstruction in optical tomography (OT) is a nonlinear and ill-posed problem, requiring a model-based iterative approach and an accurate and fully three-dimensional light transport forward model. These factors make OT a computationally expensive problem, resulting in reconstruction times that range from several minutes to hours, which is not ...

Historical events have set the stage for the current U.S. agricultural export performance. Agricultural exports in the early 1990s were as large or larger relative to the size of the agricultural sector than at any time since. A dramatic decrease in net farm income was caused by the Great Depression (1929-1932). Following passage of the Hawley-Smoot Tariff Act and the wave of ...

A novel method of measuring absolute x-ray wavelengths using simultaneous Bragg reflections at two parallel crystal plates of equal atomic spacing is presented. The accuracy of wavelength determination ??/? for this method is discussed and a value of 5 � 10-5is achieved. Absolute wavelengths of L-shell laser-produced spectra of Cu, ...

Vehicular traffic simulations are useful in applications such as emergency management and homeland security planning tools. High speed of traffic simulations translates directly to speed of response and level of resilience in those applications. Here, a parallel traffic simulation approach is presented that is aimed at reducing the time for simulating emergency vehicular ...

GUM is a portable, parallel implementation of the Haskell functional language. Despite sustained research interest in parallel functional programming, GUM is one of the first such systems to be made publicly available. GUM is message-based, and portability is facilitated by using the PVM communications harness that is available on many multi-processors. As ...

The parallel and perpendicular equilibrium currents have been experimentally studied in the Levitated Octupole, with toroidal field. Observations of the spatial structure, collisionality and toroidal field dependence of the complete current and the ion portion of the current are presented. Experimentally measured currents are compared to neoclassical current distributions ...

The parallel and perpendicular equilibrium currents were experimentally studied in the Levitated Octupole, with toroidal field. Observations of the spatial structure, collisionality and toroidal field dependence of the complete current and the ion portion of the current are presented. Experimentally measured currents are compared to neoclassical current distributions ...

Limited degree-of-freedom (DOF) parallel kinematic mechanisms (PKM) are capable of high bandwidth tracking and disturbance rejection with smaller actuators than are required for serial machines. A high performance Nyquist-stable (NS) controller with nonlinear dynamic compensation (NDC) applied to a new PKM is presented. The Popov criterion is used to show ...

Comparison of gravimeters relative to absolute measurements is frequently used method for determination of gravimeters scale factors. This technique as completely non-invasive is especially important in periodic control of continuously recording gravimeters. We used almost 40 repeated parallel observations of LaCoste&Romberg spring gravimeter with FG5 ...

We undertook to determine the extent to which the inhibition in absolute proximal fluid reabsorption in response to expansion of extracellular volume with noncolloid-containing solutions is the result of concomitant reductions in postglomerular (efferent arteriolar) protein concentration. Selective elevation of efferent arteriolar oncotic pressure in volume-expanded rats ...

Experimental measurements of acoustic transmission through a solid-solid two-dimensional binary-composite medium constituted of a triangular array of parallel circular steel cylinders in an epoxy matrix are reported. Attention is restricted to propagation of elastic waves perpendicular to the cylinders. Measured transmitted spectra demonstrate the existence of ...

We implement a unique strategy for single molecule counting termed stochastic labeling, where random attachment of a diverse set of labels converts a population of identical DNA molecules into a population of distinct DNA molecules suitable for threshold detection. The conceptual framework for stochastic labeling is developed and experimentally demonstrated by determining the ...

A linear absolute dilatometer based on a three-terminal parallel-plate capacitor design has been used to obtain thermal expansion data for high-purity copper and aluminum from 5 to 320 K. These data have an absolute accuracy of +- 0.1% above 20 K for copper and above 30 K for aluminum, and agree well with published data at the higher ...

This work studies the performance and scalability characteristics of"hybrid'" parallel programming and execution as applied to raycasting volume rendering -- a staple visualization algorithm -- on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel ...

This work studies the performance and scalability characteristics of"hybrid'"parallel programming and execution as applied to raycasting volume rendering -- a staple visualization algorithm -- on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel ...

This work studies the performance and scalability characteristics of"hybrid" parallel programming and execution as applied to raycasting volume rendering -- a staple visualization algorithm -- on a large, multi-core platform. Historically, the Message Passing Interface (MPI) has become the de-facto standard for parallel programming and ...

A comparison of parallel UBV observations obtained using the Night Sky Photometer (NSP) of the UK 1.2-m Schmidt Telescope and a photometric telescope at the same site led to recalibrations of the U-, B- and V-band surface brightness measurements of the NS...

Born in Belfast, Ireland, became professor of physics at Glasgow, studied thermodynamics, proposed an absolute scale of temperature, measured by the Kelvin temperature scale. In parallel with HERMANN VON HELMHOLTZ, he formulated a theory of stellar evolution, in which a star radiated the energy that it released by progressive gravitational contraction. The ...

First measurements of temperature fluctuations in a region of high velocity shear show that absolute and normalized fluctuation levels are reduced across the shear layer, a result that is consistent with weak parallel electron thermal conduction in the electron temperature dynamics. The concomitant reduction of temperature, density, and electric field ...

The superconducting characteristics and electron--phonon interaction (EPI) spectra in the normal state are investigated experimentally for microscopic point contacts. A relation is established between the magnitude of the excess current and the absolute intensity of the microcontact EPI function, defined for the model of a pure orifice. The dependence of the excess on the ...

Some conceptual issues concerning f(T) theories � a family of modified gravity theories based on absolute parallelism � are analyzed. Due to the lack of local Lorentz invariance, the autoparallel frames satisfying the field equations are evasive to an a priori physical understanding. We exemplify this point by working out the vierbein (tetrad) fields ...

The authors consider an Einstein-invariant gauge theory of gravitation (EGT), obtained by localizing the group of motions of a homogeneous static Einstein Universe. Taking into account the cosmological term, they find exact solutions of EGT are as nonsingular homogeneous isotropic cosmological models with both the metric and the torsion regular. It is shown that EGT satisfies the principle of ...

New parallel algorithms for estimation of parameters of sinewave contaminated by noise are proposed. The problem of estimation is formulated as an optimization problem and solved by using the gradient descent method. Algorithms based on the least absolute value, the least-squares and the minimax (Chebyshev) criteria are developed and compared. The ...

The title compound, C(10)H(14)O(2), was isolated from the chloro-form extract of Taxus wallichiana Zucc. In the crystal, mol-ecules are linked by inter-molecular O-H?O hydrogen bonds, forming sheets parallel to (100). There are weak inter-molecular C-H?? inter-actions between the sheets. PMID:21754218

We investigate the relationship between the rotational and velocity vectors in pulsars, in order to determine the direction of the natal "kick� delivered to the pulsar during the supernova of a massive parent star. Absolute polarization angles are compared with published values for the proper motion angles of pulsars, with differences suggesting parallel ...

In the crystal structure of the title compound, [Fe(C(5)H(5))(C(21)H(22)OP)], the cyclo-penta-dienyl (Cp) rings are almost parallel and are essentially eclipsed. The absolute configuration was determined as S for the planar and R for the central chirality. PMID:21580887

A collinear fast ion beam laser apparatus was constructed and tested. It will be used on-line to the SLOW RI radioactive beam facility in RIKEN (Japan) and as in the present experiment for precision absolute frequency measurements of astrophysically important reference lines. In the current work we conducted absolute measurements of spectral lines of Ar+ ...

It is shown that turbulent diffusion of electrons across the rational surface, due to a combination of shear (delta k/sub parallel//delta r identical with k'/sub parallel/ not equal to 0) and random E Vector x B Vector fluctuations and/or stochastic magnetic perturbations, results in a finite amplitude-induced version of the ...

Two types of beam profile monitor with thin parallel-plate electrodes have been used in experiments carried out at the Low Energy Antiproton Ring (LEAR) and Antiproton Decelerator (AD) of CERN. The detectors were used to measure non-destructively the spatial profiles, absolute intensities, and time structures of 100-300-ns-long beam pulses containing ...

The measurement of blood-plasma absolute velocity distributions with high spatial and temporal resolution in vivo is important for the investigation of embryonic heart at its early stage of development. We introduce a novel method to measure absolute blood flow velocity based on high speed spectral domain optical coherence tomography (OCT) and apply it to ...

Two parallel algorithms for finding the lowest common ancestors of a set of vertex pairs Q (the query set) in a directed tree are presented. With all the overheads taken into account, these algorithms take O(((n + absolute value of Q)/p) log/sub 2/n) and O(n/sup 2//p + log/sub 2/n) time, respectively, with p(>0) processors (n is the size of the tree). ...

In the normal peripheral circulation there exists a subpopulation of lymphocytes that is ultrastructurally distinct. This lymphocyte is identified with the electron microscope by the presence of cytoplasmic microtubulelike inclusions called parallel tubular arrays (PTAs) and contains Fc-receptors for cytophilic antibody. In this study, lymphocytes containing PTAs ...

We perform massively parallel computer simulations of granular particles at fixed shearing rate and density near the onset of jamming. The microscopic dynamical model contains two types of damping; one which damps the absolute motion of a particle with respect to a homogeneously shearing background (as in SLLOD type approaches) and another which damps the ...

We present Najm, a set of tools built on the axioms of absolute geometry for exploring the design space of Islamic star patterns. Our approach makes use of a novel family of tilings, called �inflation tilings, � which are particularly well suited as guides for creating star patterns. We describe a method for creating a parameterized set of motifs that can be used to fill ...

Gaia will estimate the astrometric and physical data of approximately one billion objects. The core of this process, the global sphere reconstruction, is represented by the reduction of a subset of these objects, which will constitute the largest and most precise catalog of absolute astrometry in the history of Astronomy, and will put General Relativity to test by estimating ...

The hemisphere size has been studied in wild and domestic geese (Anser fabalis, n = 77: A. albifrons, n = 48; A. anser, n = 8; A. anser f. domestica, n = 10), which were classified according to particular age category (adult or immature). Material used in studies was fixed in 4% solution of formaldehyde. The brain weight as well as hemispheres' length, width and height was measured with standard ...

Previous studies of choice between two delayed reinforcers have indicated that the relative immediacy of the reinforcer is a major determinant of the relative frequency of responding. Parallel studies of choice between two interresponse times have found exceptions to this generality. The present study looked at the choice by pigeons between two delays, one of which was always ...

Using historical research that draws on new primary sources, I review the causes and course of the first, mainly iatrogenic amphetamine epidemic in the United States from the 1940s through the 1960s. Retrospective epidemiology indicates that the absolute prevalence of both nonmedical stimulant use and stimulant dependence or abuse have reached nearly the same levels today as ...

Dynamic Load Balancing is an important system function destined to distribute workload among available processors to improve throughput and/or execution times of parallel computer programs either uniform or non-uniform (jobs whose workload varies at run-time in unpredictable ways). Non-uniform computation and communication requirements may bog down a ...

Seismic anisotropy was investigated by measuring shear wave splitting at 7 broadband stations in eastern Greenland. Splitting parameters (fast polarization and time delay) were determined for SKS and SKKS phases. Fast polarizations are oriented roughly parallel to the east Greenland coast at 5 stations, while for two they are nearly perpendicular to the coast. The anisotropy ...

Abstract. We study the problem of online learning of multiple tasks in parallel. On each online round, the algorithm receives an instance and makes a prediction for each one of the parallel tasks. We consider the case where these tasks all contribute toward a common goal. We capture the relationship between the tasks by using a single global loss function ...

A gravitational theory is formulated on the Weitzenboeck space-time, characterized by the vanishing curvature tensor (absolute parallelism) and by the torsion tensor formed of four parallel vector fields. This theory is called new general relativity, since Einstein in 1928 first gave its original form. New general relativity has three ...

This report is volume 10 of an 11-volume report on a dynamic general purpose computer simulation model for underground coal mining. This volume describes the ventilation subsystem of the Master Design Simulator. The ventilation subsystem has the capabilities to handle: (1) branches in parallel or series, (2) fans in parallel or series, (3) multiple fans, ...

We explore the causes of performance limitation in positron emission mammography cameras. We compare two basic camera geometries containing the same volume of 511 keV photon detectors, one with a parallel plane geometry and another with a rectangular geometry. We find that both geometries have similar performance for the phantom imaged (in Monte Carlo simulation), even though ...

Ever-increasing size and complexity of software applications and libraries in parallel scientific computing is making implementation in the programming languages traditional for this field--FORTRAN 77 and C--impractical. The major impediment to the progression to a higher-level language such as C++ is attaining FORTRAN 77 or C performance, which is considered ...

We analyze the plane-parallel bias of the shortwave cloud radiative forcing (SWCRF) of liquid and ice clouds at 1 degree scales using global MODIS (Terra and Aqua) cloud optical property retrievals for four months of 2005 representative of the meteorological seasons. The (negative) bias is estimated as the difference of the SWCRF calculated using the ...

In this paper, we construct a field theory unifying gravity and electromagnetism in the context of extended absolute parallelism (EAP) geometry. This geometry combines, within its structure, the geometric richness of the tangent bundle and the mathematical simplicity of absolute parallelism (AP) geometry. The ...

The quality of an RF detector coil design is commonly judged on how it compares with other coil configurations. The aim of this article is to develop a tool for evaluating the absolute performance of RF coil arrays. An algorithm to calculate the ultimate intrinsic signal-to-noise ratio (SNR) was implemented for a spherical geometry. The same imaging tasks modeled in the ...

A prototype gas-filled proportional counter (PC) based on micro-scale tungsten wire and carbon fiber, and nano-scale carbon nanotube (CNT) anodes was built and tested with a 90Sr source. Tungsten anodes of 500 ?m down to 4 ?m diameter were used to observe the gradual decrease in operating voltage for the proportional region with a decreasing anode diameter. The 40 nm diameter CNTs anodes ranged in ...

A simple analytical model is developed that allows efficient absolute dose reconstruction in patients undergoing radiation treatments using proton beams. The model is based on the solution of the inverse problem of dose recovery from the 3D information contained in the PET signal, obtained immediately after the treatment. The core of the proposed model lies in the analytical ...

Recently, the massively parallel computation of absolute binding free energy with a well-equilibrated system (MP-CAFEE) has been developed. The present study aimed to determine whether the MP-CAFEE method is useful for drug discovery research. In the drug discovery process, it is important for computational chemists to predict the binding affinity ...

A universal apparatus was developed for simple and accurate measurement of the velocity of sound in almost any fluid, including a chemically active one. Measurements are made by the fixed-distance pulse passage method. An ultrasonic signal travels through the test fluid betwen two optically treated plane-parallel windows in a hermetically closed quartz cell. The latter is ...

Very high dose per pulse (3-13 cGy/pulse) high energy electron beams are currently produced by special linear accelerators (linac) dedicated to Intra Operative Radiation Therapy (IORT). The electron beams produced by such linacs are collimated by special Perspex applicators of various size and cylindrically shaped. The biggest problems from the dosimetric point of view are caused by the high ...

This paper reviews recent advances and investigation in the treatment of ocular surface pathology. There is significant investment in this area, paralleling the growing demand for more effective alternatives to current treatments. Clinicians are becoming more aware of surface pathology, yet the ability to treat the most common forms of ocular pathology are still limited to the ...

A de Sitter-invariant gauge theory is formulated for the case where a 40-component de Sitter A-field is present. It is shown that the theory coincides with the Poincare-invariant gauge theory in a space with torsion with a cosmological term. Two other versions of a de Sitter-invariant theory are also discussed: the first is a metric theory of gravitation in a Riemann space; the second is a de ...

The present paper is devoted to the algorithmic construction of diffeomorphisms establishing the equivalence of geometric structures. For structures of finite type the problem reduces to integration of completely integrable distributions with a known symmetry algebra and further to integration of Maurer-Cartan forms. We develop algorithms that reduce this problem to integration of closed 1-forms ...

We have demonstrated several inexpensive methods that can be used to measure the deflection angles of prisms with microradian precision. The methods are self-referenced, where various reversals are used to achieve absolute measurements without the need of a reference prism or any expensive precision components other than the prisms under test. These techniques are based on ...

Previous research has shown a strong correlation of protein folding rates to the native state geometry, yet a complete explanation for this dependence is still lacking. Here we study the rate-geometry relationship with a simple statistical physics model, and focus on two classes of model geometries, representing ideal parallel and antiparallel structures. We find that the ...

The research work provided data for the effective cleat porosity, cleat aperture, and cleat network interconnectedness properties of five coal drill cores. These data revealed that measured values of effective cleat porosity and absolute water permeability made parallel to face cleats are incomparable with those made perpendicular to bedding planes. The ...

The precise cosmic microwave background radiation (CMB) measurements by COBE and other facilities can provide interesting possibilities for the experimental checking of some basic physical parameters. In this context the inverse Compton scattering of highly monochromatic and parallel electron beams on laser photons is proposed for testing special relativity and related basic ...

We have demonstrated a new technique that provides massively parallel comb spectroscopy sensitive specifically to ions through the combination of cavity-enhanced direct frequency comb spectroscopy with velocity-modulation spectroscopy. Using this novel system, we have measured electronic transitions of HfF+ and achieved a fractional absorption sensitivity of 3�10-7 recorded ...

Most of SSC phase space and a great deal of physics potential is in the forward/backward region (absolute value of theta < 100 mrad). Comprehensive open-geometry spectrometers are feasible and very cost effective. Examples of such devices are sketched. Because such spectrometers are very long and may operate at high ..beta.. and longer bunch spacing, they impact now on SSC ...

in absolute-value mode, of propanol CH3 c CH2 b CH2 a OH (left panels) and butenol CH2 b =CHa CH2 d CH2 c OH widths of 14 and 20 kHz for propanol and butenol, respectively. (E) Columns taken parallel to the vertical t1 or w1 domain, taken along the dotted lines of the 2D spectra of propanol in homogeneous (red

A detailed model for the infrared point source sky is presented that comprises geometrically and physically realistic representations of the galactic disk, bulge, spheroid, spiral arms, molecular ring, and absolute magnitudes. The model was guided by a parallel Monte Carlo simulation of the Galaxy. The content of the galactic source table constitutes an ...

The title compound, C₁₀H₁₄O₂, was isolated from the chloro�form extract of Taxus wallichiana Zucc. In the crystal, mol�ecules are linked by inter�molecular O�H?O hydrogen bonds, forming sheets parallel to (100). There are weak inter�molecular C�H?? inter�actions between the sheets.

In the title compound, C₁₄H₁₇NO₂, the six-membered ring of the indolizine system adopts a chair conformation. In the crystal, mol�ecules form chains parallel to the b axis via inter�molecular O�H?O hydrogen bonds. The absolute mol�ecular configuration was assigned from the ...

... Title : Performance Metrics for Parallel Systems. ... Descriptors : *PARALLEL PROCESSORS, *METRIC SYSTEM, COMPUTERS, PARALLEL ...