cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Experimental Investigation of the Failure of a Stepped Composite Plate
Creators: name: Gortsema, Steven Craig
Publisher: name: California Institute of Technology
Year: 1992
Subjects: Aeronautics

description: The progression of damage in a stepped composite plate has been investigated experimentally. This study is intended to provide insight into the failure behavior of co-cured, stringer-reinforced composite plates and shells. The specimens were constructed of four different lay-ups of carbon-fiber-reinforced epoxy and were subjected to various combinations of moment, tension, and shear static loadings.

The primary means of damage observation was in situ microscopic inspection of the specimen edges. These observations were supplemented by penetrant-dye inspection, microscopic inspection of the plate face, and ultrasonic C-scanning of specimens which were unloaded prior to catastrophic failure. In addition to providing detailed descriptions of the damage development, this thesis presents hypotheses which attempt to explain the mechanisms involved in the failure process.

The immediate goal of this work was to gather the experimental evidence needed to evaluate a recently proposed failure criterion. The criterion attempts to predict failure for an arbitrary lay-up by studying the behavior of the computed stresses within an extremely small vicinity of the singularity. The tests described in this thesis revealed that damage initiation does not always occur on the plate-stringer interface, as assumed in the failure criterion. Furthermore, it was discovered that in some lay-ups, damage initiates at a distance of over one lamina thickness away from the singularity. This fact makes it impossible to predict failure accurately with any criterion which is based solely on a computed stress singularity.
A study of the effect of viscosity on the resolution of bands in the preparative ultracentrifuge
Creators: name: Komai, Ralph  Yutaka
Publisher: name: California Institute of Technology
Year: 1967
Subjects: Chemistry

description: Band velocity experiments in the preparative ultracentrifuge are usually performed in a linear density gradient established by mixing a 5% and a 20% sucrose solution. This stabilizing density gradient introduces a significant viscosity gradient which in turn may effect the resolving power of the sedimentation velocity experiment. The fast components travel on the average through more viscous solutions than do the slow components.

In this investigation the effect of viscosity gradients
was examined by experiments in which density stability was
achieved by using a cesium chloride density gradient and the viscosity was independently controlled by introducing a uniform sucrose concentration or a positive or negative sucrose gradient in the cesium chloride gradient.

Experiments performed with a mixture of tritiated thymidine labeled polyoma DNA components I, II, and III showed
that the separation of band maxima increased as the direction of the viscosity gradient was changed from positive to zero to negative with respect to field. On the other hand the band widths increased in the same order. The resolution in terms of the separation between the bands divided by the sum of the band widths was clearly lowest with the negative viscosity gradient and was approximately the same for the positive and zero viscosity gradients.
Emission spectrum of soft massless states from heavy superstring
Creators: name: Kawamoto, Shoichi
name: Matsuo, Toshihiro
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate emission rates of various bosonic/fermionic soft massless states of open/closed superstring from an ensemble of a highly excited open/closed superstring in the flat background. The resulting spectrum shows thermal distributions at the Hagedorn temperature. We find greybody factors for each process and observe their relation to the ones from blackholes.
description: 28 pages; ver. 3, typos corrected
α-secondary tritium isotope effects in the hydrolysis of glycopyranosides of n-acetyl-d-glucosamine
Creators: name: Mohr, Lawrence H.
Publisher: name: California Institute of Technology
Year: 1974
Subjects: Chemistry

description: Part I. Secondary tritium isotope effects were used to study the aqueous hydrolysis of a series of α and β-glycopyranosides of N-acetyl-D-glucosamine. The magnitude of the secondary tritium isotope effects, and their dependence on the structure of the aglycone, are
compatible with the carbonium ion mechanism suggested for the specific acid catalysis of these compounds by Piszkiewicz and Bruice (1, 2, 3). The secondary tritium isotope effect determined for the spontaneous hydrolysis of the p-nitropheny1-2-acetamido-2-deoxy-β-D-glucopyrano-
side is not consistent with an intramolecular, nucleophilic displacement mechanism. A mechanism involving the equilibrium formation of a carbonium ion-anion pair is proposed. The relevance of these model studies to hydrolysis of oligosaccharides of N-acetyl-D-glucosamine by
lysozyme is discussed.

Part II. Secondary tritium isotope effects are also used to study the enzymatic hydrolysis of two β-aryl
glycopyranosides of N-acetyl-D-glucosamine by β-N-acetyl-D-glucosaminidase isolated from jack bean meal. The results obtained indicate a transition state for reaction
processing less carbonium ion character than the corresponding hydrolysis catalyzed by aqueous acid or lysozyme. A mechanism involving anchimeric assistance by the acetamido group on the substrate is proposed.
Long-Range Order of the Three-Sublattice Structure in the S = 1 Heisenberg Antiferromagnet on a Spatially Anisotropic Triangular Lattice
Creators: name: Nakano, Hiroki
name: Todo, Synge
name: Sakai, Toru
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the S=1 Heisenberg antiferromagnet on a spatially anisotropic triangular lattice by the numerical diagonalization method. We examine the stability of the long-range order of a three-sublattice structure observed in the isotropic system between the isotropic case and the case of isolated one-dimensional chains. It is found that the long-range-ordered ground state with this structure exists in the range of 0.7 \simle J_2/J_1 \le 1, where J_1 is the interaction amplitude along the chains and J_2 is the amplitude of other interactions.
description: 5 pages, 7 figures, to be published in J. Phys. Soc. Jpn
Additional file 1 of Associations between occupational and environmental exposures and organ involvement in sarcoidosis: a retrospective case-case analysis
Creators: name: Ronsmans, Steven
name: De Ridder, Jolien
name: Vandebroek, Eline
name: Keirsbilck, Stephan
name: Nemery, Benoit
name: Hoet, Peter H. M.
name: Vanderschueren, Steven
name: Wuyts, Wim A.
name: Yserbyt, Jonas
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1. Comorbidities and other covariates of the included sarcoidosis patients; Table S2. Results for the univariable analysis of the associations between each organ involvement and each exposure. Table S3. Sensitivity analysis to assess potential confounding by adjusting for different lung function parameters in the best-fit logistic regression models from Table 1.
Additional file 1 of Learnings from the design and acceptance of the German COVID-19 tracing app for IS-driven crisis management: a design science research
Creators: name: Behne, Alina
name: Krüger, Nicolai
name: Beinke, Jan Heinrich
name: Teuteberg, Frank
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Additional file 1. Survey structures and interview guideline.
Luminosity Bias (II): The Cosmic Web of the First Stars
Creators: name: Barkana, Rennan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Understanding the formation and evolution of the first stars and galaxies represents one of the most exciting frontiers in astronomy. Since the universe was filled with neutral hydrogen at early times, the most promising method for observing the epoch of the first stars is using the prominent 21-cm spectral line of the hydrogen atom. Current observational efforts are focused on the reionization era (cosmic age t ~ 500 Myr), with earlier times considered much more challenging. However, the next frontier of even earlier galaxy formation (t ~ 200 Myr) is emerging as a promising observational target. This is made possible by a recently noticed effect of a significant relative velocity between the baryons and dark matter at early times. The velocity difference suppresses star formation, causing a unique form of early luminosity bias. The spatial variation of this suppression enhances large-scale clustering and produces a prominent cosmic web on 100 comoving Mpc scales in the 21-cm intensity distribution. This structure makes it much more feasible for radio astronomers to detect these early stars, and should drive a new focus on this era, which is rich with little-explored astrophysics.
description: Accepted for publication in PASA special issue on the CosmoBias meeting in Marseille, 2012. Invited review, includes background on the first stars, high-redshift bias, and the relative velocity. 14 pages, 10 figures. Main revision: Figure 6 (top panel) is now correct
Effect of single and periodic disturbances on intermittency in pipe flow
Creators: name: Vallerani, Ernesto
Publisher: name: California Institute of Technology
Year: 1964
Subjects: Engineering and Applied Science

description: A set of experiments has been performed to investigate the behaviour of intermittency in pipe flow, particularly in response to periodical disturbances at fixed frequency (up to 360 cycles per minute) which were introduced in the flow.

The effects were studied at various values of Reynolds number in the transition range from Re = 2000 to 3000.

The main object was to relate the input frequency of the disturbance to the output frequency of the turbulent slugs emerging at the end of the pipe (Part III. C).

The propagation velocity of the interfaces separating regions of laminar and turbulent flow was studied by performing experiments with a single disturbance (Part III. B).

A single experiment has been performed also to investigate the frequency and the intermittency of the turbulent slugs of a flow with a fixed, geometrical perturbation at the inlet (Part III. A).
Holographic Models for Theories with Hyperscaling Violation
Creators: name: Gath, Jakob
name: Hartong, Jelle
name: Monteiro, Ricardo
name: Obers, Niels A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study in detail a variety of gravitational toy models for hyperscaling-violating Lifshitz (hvLif) space-times. These space-times have been recently explored as holographic dual models for condensed matter systems. We start by considering a model of gravity coupled to a massive vector field and a dilaton with a potential. This model supports the full class of hvLif space-times and special attention is given to the particular values of the scaling exponents appearing in certain non-Fermi liquids. We study linearized perturbations in this model, and consider probe fields whose interactions mimic those of the perturbations. The resulting equations of motion for the probe fields are invariant under the Lifshitz scaling. We derive Breitenlohner-Freedman-type bounds for these new probe fields. For the cases of interest the hvLif space-times have curvature invariants that blow up in the UV. We study the problem of constructing models in which the hvLif space-time can have an AdS or Lifshitz UV completion. We also analyze reductions of Schroedinger space-times and reductions of waves on extremal (intersecting) branes, accompanied by transverse space reductions, that are solutions to supergravity-like theories, exploring the allowed parameter range of the hvLif scaling exponents.
description: version 3: matches published version
Multi-User Multi-Carrier Differential Chaos Shift Keying Communication System
Creators: name: Kaddoum, Georges
name: Richardson, Francois-Dominique
name: Adouni, Sarra
name: Gagnon, Francois
name: Thibeault, Claude
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: In this paper, a multi user Multi-Carrier Differential Chaos Shift Keying (MC-DCSK) modulation is presented. The system endeavors to provide a good trade-off between robustness, energy efficiency and high data rate, while still being simple. In this architecture of MC-DCSK system, for each user, chaotic reference sequence is transmitted over a predefined subcarrier frequency. Multiple modulated data streams are transmitted over the remaining subcarriers allocated for each user. This transmitter structure saves energy and increases the spectral efficiency of the conventional DCSK system.
description: Accepted in the IEEE International Wireless Communications and Mobile Computing Conference (IWCMC 2013)
Using Support Vector Machines for Facet Partitioning in Multidimensional Scaling
Creators: name: Mair, Patrick
name: Cetron, Joshua S.
name: Borg, Ingwer
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Plant Biology

description: In this article we focus on interpreting multidimensional scaling (MDS) configurations using facet theory. The facet theory approach is attempting to partition a representational space, facet by facet, into regions with certain simplifying constraints on the regions’ boundaries (e.g., concentric circular sub-spaces). A long-standing problem has been the lack of computational methods for optimal facet-based partitioning. We propose using support vector machines (SVM) to perform this task. SVM is highly attractive for this purpose as they allow for linear as well as nonlinear classification boundaries in any dimensionality. Using various classical examples from the facet theory literature we elaborate on the combined use of MDS and SVM for facet-based partitioning. Different types of MDS are discussed, and options for SVM kernel specification, tuning, and performance evaluation are illustrated.
Hypersonic viscous-inviscid flow interactions including boundary layer separation on a flat plate at angle of attack
Creators: name: Hulcher, Gregory D.
Publisher: name: California Institute of Technology
Year: 1972
Subjects: Aeronautics

description: Experimental measurements of mean flow properties over the leeward surface and in the near wake of an adiabatic thin flat plate at an angle of attack of α = 15° were obtained at Mach 6 and Reynolds number based on the chord length of 186,000. The leading edge thickness is the predominant variable which affects the pre-separation interaction region. The effects of the large windward pressure, which separates the boundary layer at ℓ/L ≃ .7 are felt at points considerably forward of the separation point. The pressure rise in the separation region is similar to the rise on a flat plate-ramp model, and the data correlate according to Chapman's parameters. Also, the leeward side flow of the thin flat plate is found to be very similar to the flow over a wedge whose leeward side is inclined to the same angle. The wake centerline quantities behave similar to those behind a flat plate at zero angle of attack, but the streamwise gradients are less than those behind an inclined wedge. The flow appears to remain laminar throughout the entire field of measurement.
Additional file 1 of IL6 trans-signaling associates with ischemic stroke but not with atrial fibrillation
Creators: name: Ziegler, Louise
name: Wallén, Håkan
name: Aspberg, Sara
name: de Faire, Ulf
name: Gigante, Bruna
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional file 1.
Selecting a Within- or Between-Subject Design for Mediation: Validity, Causality, and Statistical Power
Creators: name: Montoya, Amanda K.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: Researchers with mediation hypotheses must consider which design to use: within-subject or between-subject? In this paper, I argue that three factors should influence design choice: validity, causality, and statistical power. Threats to validity include carry-over effects, participant awareness, measurement, and more. Causality is a core element of mediation, and the assumptions required for causal inference differ between the two designs. Between-subject designs require more restrictive no-confounder assumptions, but within-subject designs require the assumption of no carry-over effects. Statistical power should be higher in within-subject designs, but the degree and conditions of this advantage are unknown for mediation analysis. A Monte Carlo simulation compares designs under a broad range of sample sizes, effect sizes, and correlations among repeated measurements. The results show within-subject designs require about half the sample size of between-subject designs to detect indirect effects of the same size, but this difference can vary with population parameters. I provide an empirical example and R script for conducting power analysis for within-subject mediation analysis. Researchers interested in conducting mediation analysis should not select within-subject designs merely because of higher power, but they should also consider validity and causality in their decision, both of which can favor between-subject designs.
Superfluid-insulator transition in weakly interacting disordered Bose gases: a kernel polynomial approach
Creators: name: Saliba, Joseph
name: Lugan, Pierre
name: Savona, Vincenzo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: An iterative scheme based on the kernel polynomial method is devised for the efficient computation of the one-body density matrix of weakly interacting Bose gases within Bogoliubov theory. This scheme is used to analyze the coherence properties of disordered bosons in one and two dimensions. In the one-dimensional geometry, we examine the quantum phase transition between superfluid and Bose glass at weak interactions, and we recover the scaling of the phase boundary that was characterized using a direct spectral approach by Fontanesi et al. [Phys. Rev. A 81, 053603 (2010)]. The kernel polynomial scheme is also used to study the disorder-induced condensate depletion in the two-dimensional geometry. Our approach paves the way for an analysis of coherence properties of Bose gases across the superfluid-insulator transition in two and three dimensions.
description: Published version; 23 pages, 7 figures
Additional file 1 of Screening and evaluation of the strong endogenous promoters in Pichia pastoris
Creators: name: Dou, Weiwang
name: Zhu, Quanchao
name: Zhang, Meihua
name: Jia, Zuyuan
name: Guan, Wenjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. Identified promoter candidates in P. pastoris GS115.
Awaking the vacuum with spheroidal shells
Creators: name: Lima, William C. C.
name: Mendes, Raissa F. P.
name: Matsas, George E. A.
name: Vanzella, Daniel A. T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has been shown that well-behaved spacetimes may induce the vacuum fluctuations of some nonminimally coupled free scalar fields to go through a phase of exponential growth. Here, we discuss this mechanism in the context of spheroidal thin shells emphasizing the consequences of deviations from spherical symmetry.
description: 10 pages, 7 figures. Minor changes, version published on Phys. Rev. D
Crowdsourcing for Bioinformatics
Creators: name: Good, Benjamin M.
name: Su, Andrew I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Computers and Society (cs.CY)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Motivation: Bioinformatics is faced with a variety of problems that require human involvement. Tasks like genome annotation, image analysis, knowledge-base construction and protein structure determination all benefit from human input. In some cases people are needed in vast quantities while in others we need just a few with very rare abilities. Crowdsourcing encompasses an emerging collection of approaches for harnessing such distributed human intelligence. Recently, the bioinformatics community has begun to apply crowdsourcing in a variety of contexts, yet few resources are available that describe how these human-powered systems work and how to use them effectively in scientific domains. Results: Here, we provide a framework for understanding and applying several different types of crowdsourcing. The framework considers two broad classes: systems for solving large-volume 'microtasks' and systems for solving high-difficulty 'megatasks'. Within these classes, we discuss system types including: volunteer labor, games with a purpose, microtask markets and open innovation contests. We illustrate each system type with successful examples in bioinformatics and conclude with a guide for matching problems to crowdsourcing solutions.
description: Review
Supplementary document for Topological enhancement of evanescent field localization in all-dielectric metasurfaces - 6413573.pdf
Creators: name: Lepeshov, Sergey
name: Yesmantovich, Maksim
name: Bogdanov, Andrey
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Revised version of Supplementary Information
Breather and Rogue Wave solutions of a Generalized Nonlinear Schrodinger Equation
Creators: name: Wang, L. H.
name: Porsezian, K.
name: He, J. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, using the Darboux transformation, we demonstrate the generation of first order breather and higher-order rogue waves from a generalized nonlinear Schrödinger equation with several higher-order nonlinear effects representing femtosecond pulse propagation through nonlinear silica fiber. The same nonlinear evolution equation can also describes the soliton-type nonlinear excitations in classical Heisenberg spin chain. Such solutions have a parameter $γ_1$, denoting the strength of the higher-order effects. From the numerical plots of the rational solutions, the compression effects of the breather and rogue waves produced by $γ_1$ are discussed in detail.
description: 20 pages, 7 figures. Several wrong values of $gamma_1$ are corrected
The measurement of time dependent Poisson's ratio
Creators: name: Soesanto, Tonny
Publisher: name: California Institute of Technology
Year: 1982
Subjects: subject: Chemical Engineering
subject: FOS: Chemical engineering

description: NOTE: Text or symbols not renderable in plain ASCII are indicated by [...].  Abstract is included in .pdf document.

Interest in accurate measurements of the time-dependent Poisson's ratio of polymers arises because it is a component commonly needed in stress analysis and it appears in most theories predicting the behavior of filled materials and composites. Because of the paucity of data and the difficulties in determining [...](t) experimentally, it has been customary in the past to treat [...](t) as a constant. This is unsatisfactory theoretically and inadequate for accurate work.

An apparatus has been constructed that enables us to measure tensile relaxation modulus, E(t), and time-dependent Poisson's ratio, [...](t), simultaneously on the same specimen under the same experimental condition. The apparatus, which contains several novel features, is essentially in working condition. Experiments will be made on a series of selected polymers.

We hope to be able to determine the bulk relaxation modulus, K(t), and the shear relaxation modulus, G(t), from measurements of E(t) and [...](t). A method for solving the appropriate convolution integrals to determine K(t) and G(t) is already available. It would be desirable to compare the calculated G(t) and K(t) with direct measurements. The latter are very difficult. Direct measurements of G(t) will be made in a torsional relaxometer on the same specimen but not under identical conditions. Nevertheless, these data will be useful as a check on our measurements and our method of calculation.

This work will allow a comparison to be made between shear and bulk relaxation via the spectral functions. The measurements will ultimately form the basis for the development of a theory of bulk relaxation in polymeric materials.
Additional file 3 of Screening and evaluation of the strong endogenous promoters in Pichia pastoris
Creators: name: Dou, Weiwang
name: Zhu, Quanchao
name: Zhang, Meihua
name: Jia, Zuyuan
name: Guan, Wenjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 3. Primers used for RT-qPCR and colony verification.
Additional file 4 of Screening and evaluation of the strong endogenous promoters in Pichia pastoris
Creators: name: Dou, Weiwang
name: Zhu, Quanchao
name: Zhang, Meihua
name: Jia, Zuyuan
name: Guan, Wenjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 4. Sequence length of the intergenic region of selected genes.
Orbital Dzyaloshinskii-Moriya Exchange Interaction
Creators: name: Kim, Panjin
name: Han, Jung Hoon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Superexchange calculation is performed for multi-orbital band models with broken inversion symmetry. Orbital-changing hopping terms allowed by the symmetry breaking electric field lead to a new kind of orbital exchange term closely resembling the Dzyaloshinskii-Moriya spin exchange. The final superexchange Hamiltonian in two dimensions is expressed in terms of Gell-Mann matrices that break down as three spin operators and five nematic (quadrupole) order operators. Mean-field phase diagram exhibits a rich structure including anti-ferro-orbital, ferro-orbital, and both single and multiple spiral-orbital phases. Superexchange calculation for spinful, two-orbital model also strongly suggests a robust chiral-orbital order in the ground state.
description: 6 pages, 1 figure
Additional file 5 of Screening and evaluation of the strong endogenous promoters in Pichia pastoris
Creators: name: Dou, Weiwang
name: Zhu, Quanchao
name: Zhang, Meihua
name: Jia, Zuyuan
name: Guan, Wenjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 5. Strains and vectors used in this study.
The Vasquez series in the upper Tick Canyon area, Los Angeles County, California
Creators: name: Irwin, William P.
Publisher: name: California Institute of Technology
Year: 1950
Subjects: subject: Agua Dulce Canyon
subject: Tick Canyon
subject: Sterling Fault
subject: Tick Canyon Formation
subject: Ventura Basin
subject: Mint Canyon
subject: Soledad Canyon
subject: Geology
subject: FOS: Earth and related environmental sciences

description: The Vasquez series of probable Gligocene age consists of
interbedded sedimentary and basic volcanic rocks, and is well exposed in the vicinity of Tick Canyon, northern Los Angeles County, California. In this area the section is 4810 feet thick. The sediments are nonmarine deposits that were laid down under alternating lacustrine and fluviatile conditions in a semi-arid climate. The basic igneous rocks are extrusive, and comprise flows, flow breccias, and minor tuffs.

The beds occur in a sharply-folded syncline with a gentle
southwesterly plunge. They are in fault contact with a much
older, pre-Cretaceous complex of crystalline rocks, and are
nonconformably overlain by the Tick Canyon formation of Lower Miocene age.

Sets of northeasterly- and northwesterly-trending faults
cut the syncline. Movement along these faults was predominantly strike slip. Those of the northeasterly-trending set show much the larger displacements, and blocks on the southeast side are offset to the north with respect to blocks on the northwest side. Faulting appears to have been contemporaneous with the later stages of folding from pro-Tick Canyon to post-Mint Canyon time.

Vertebrate and invertebrate fossil remains were found in
several beds, but none proved diagnostic as a means for dating the Vasquez series.

Mining for borate minerals was once an active industry in
the area. Many gold prospects are present in the area underlain by crystalline rocks. Major faults in the area are water-bearing in places, and have important significance in regard to water supply.
Photoionization of hydrogen atom by coherent intense high-frequency short laser pulses: Direct propagation of electron wave packets on large spatial grids
Creators: name: Demekhin, Philipp V.
name: Hochstuhl, David
name: Cederbaum, Lorenz S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The time-dependent Schrödinger equation for the hydrogen atom and its interaction with coherent intense high-frequency short laser pulses is solved numerically exactly by propagating the single-electron wave packets. Thereby, the wavefunction is followed in space and time for times longer than the pulse duration. Results are explicitly shown for 3 and 10 fs pulses. Particular attention is paid to identifying the effect of dynamic interference of photoelectrons emitted with the same kinetic energy at different times during the rising and falling sides of the pulse predicted in [\emph{Ph.V. Demekhin and L.S. Cederbaum}, Phys. Rev. Lett. \textbf{108}, 253001 (2012)]. In order to be able to see the dynamic interference pattern in the computed electron spectra, the photoelectron wave packet has to be propagated over long distances. Clearly, complex absorption potentials often employed to compute spectra of emitted particles cannot be used to detect dynamic interference. For the considered high-frequency pulses of 3 and 10 fs durations, this requires enormously large spatial grids. The presently computed photoionization and above-threshold ionization spectra are found to exhibit pronounced dynamic interference patterns. Where available, the patterns are in very good agreement with previously published results on the photoionization spectra which have been computed using a completely different method, thus supporting the previously made assumption that the above-threshold ionization processes are very weak for the considered pulse intensities and high carrier frequency. The quiver motion in space and time of a free electron in strong laser pulses is also investigated numerically. Finally, a discussion is presented of how fast the atom is ionized by an intense pulse.
description: 8 pages, 5 figures
Scheduling in Distributed Stream Processing Systems
Creators: name: Khorlin, Andrey
Publisher: name: California Institute of Technology
Year: 2006
Subjects: control theory
scheduling
stream
data streams
queuing theory
stream processing system
markov chains
process sharing
Computer Science
QoS function

description: Stream processing systems receive continuous streams of messages with relatively raw information and produce streams of messages with processed information. The utility of a stream-processing system depends, in part, on the accuracy and timeliness of the output. Streams in complex event processing systems are processed on distributed systems; several steps are taken on different processors to process each incoming message, and messages may be enqueued between steps. This work explores the problem of distributed dynamic control of streams to optimize the total utility provided by the system. A system can be controlled using central control or distributed control.  In the former case a single central controller maintains the state of the entire system and controls the operation of all processors.  In distributed control systems, each processor controls itself based on its state and information from other processors. A challenge of distributed control is that timeliness of output depends only on the total end-to-end time and is otherwise independent of the delays at each separate processor whereas the controller for each processor takes action to control only the steps on that processor and cannot directly control the entire network. In this work, we discuss a framework for design and analysis of the control-based scheduling algorithms for a distributed stream processing system and illustrate our framework with two concrete scheduling algorithms.
Anomalous Higgs Couplings at the LHeC
Creators: name: Senol, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The discovery of Higgs boson plays a crucial role in understanding the electroweak symmetry breaking sector. From now on, solving the dynamics of this sector needs precision measurements of the couplings of the Higgs boson to the standard model particles. In this work, we investigate the constrains on the anomalous $HWW$ and $HWWγ$ couplings, described by the dimension-six operators in the effective Lagrangian, in a high energy envisaged ep collider which is called Large Hadron electron Collider (LHeC). We obtained the 95 % confidence level limits on the couplings of anomalous $HWW$ and $HWWγ$ vertex, with the design luminosity of 10 fb$^{-1}$ and electron beam energy of 140 GeV, through $ep\to νH +X$, $γp\to W H +X$ and $eγ\to W H ν$ processes by considering the new physics energy scale to be $Λ$= 1 TeV. The sensitivity of the LHeC to the new physics scale is also briefly discussed.
description: 11 pages, 11 figures, to appear in Nucl.Phys. B
Automated analysis of protein subcellular location in immunohistochemistry images for cancer diagnosis
Creators: name: Kumar, Aparna
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: Computational Biology

description: Protein subcellular location and compartmentalization play an important role in regulating cellular processes. Protein mislocalization alters cell signaling and is observed in diverse diseases (Hung and Link 2011). Drug resistance can occur when proteins are mislocalized to the cytoplasm and nucleus, suggesting that the measurement of protein location can help clinicians personalize therapies and diagnose disease. Here, two projects explore how automatically quantitating subcellular location from pathology images can be used be in diagnostics and for understanding disease. 1) We developed an automated pipeline to compare the subcellular location of proteins between two sets of immunohistochemistry images. We used the pipeline to compare images of healthy and tumor tissue from the Human Protein Atlas, ranking hundreds of proteins in breast, liver, prostate and bladder based on how much their location was estimated to have changed. The performance of the system was evaluated by determining whether proteins previously known to change location in tumors were ranked highly. We present a number of new candidate location biomarkers for each tissue. Further we identified biochemical pathways that are enriched in proteins that change location. We confirmed some previously implicated pathways and we report new pathways previously unassociated with cancer to have changed. 2) We extended the IHC pipeline to process full slide images. Using the pipeline we explored how measuring changes in protein subcellular location can aid in identifying adult and pediatric liver lesions. Our results indicate that most of the time single protein measurements are poor markers for the lesions. Next we explored lesion.specific protein signatures for identifying diseases. Given our dataset we found a signature set of proteins that can successfully identify liver lesions in adult and pediatric populations with perfect accuracy. Finally we report two new proteins that aid in classifying the lesions when used as part of a signature protein set.
Bibliometric Analysis of Research on Acetabular Implants Positioning
Creators: name: Archambault, Éric
Publisher: name: Science-Metrix
Year: 2011
Subjects: acetabular implants positioning
bibliometrics
scientometrics
DePuy
technometrics
patents
0000-0002-4422-1054

description: This is a presented made at DePuy International Limited on Acetabular Implants Positioning R&D.
A direct method for the Boltzmann equation based on a pseudo-spectral velocity space discretization
Creators: name: Ghiroldi, Gian Pietro
name: Gibelli, Livio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A deterministic method is proposed for solving the Boltzmann equation. The method employs a Galerkin discretization of the velocity space and adopts, as trial and test functions, the collocation basis functions based on weights and roots of a Gauss-Hermite quadrature. This is defined by means of half- and/or full-range Hermite polynomials depending whether or not the distribution function presents a discontinuity in the velocity space. The resulting semi-discrete Boltzmann equation is in the form of a system of hyperbolic partial differential equations whose solution can be obtained by standard numerical approaches. The spectral rate of convergence of the results in the velocity space is shown by solving the spatially uniform homogeneous relaxation to equilibrium of Maxwell molecules. As an application, the two-dimensional cavity flow of a gas composed by hard-sphere molecules is studied for different Knudsen and Mach numbers. Although computationally demanding, the proposed method turns out to be an effective tool for studying low-speed slightly rarefied gas flows.
Additional file 1 of Imaging and modelling of poly(3-hydroxybutyrate) synthesis in Paracoccus denitrificans
Creators: name: Bordel, Sergio
name: van Spanning, Rob J. M.
name: Santos-Beneit, Fernando
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Physiology
subject: Ecology
subject: Developmental Biology
subject: Plant Biology
subject: Computational Biology

description: Additional file 1: Figure S1. Staining of P. denitrificans cells with MTG. Details of dividing cells (at an OD660 of about 0.75) (A) and spheroplasts (B) stained with 1μM MTG during 5 min at 34 ºC and imaged using LSCM showing PHB granules distributed symmetrically. Figure S2. PHB inclusions in P. denitrificans cells grown in a defined mineral salts medium with 25 mM succinate as the sole carbon and energy sources. A Growth curve of the cells incubated at 34°C and 300 rpm and gas chromatographic data of specific PHB production (μg PHB per mg of cell biomass). B At different time points, 1ml of culture was incubated with 2 μM of Nile Red during 5 min and imaged using LSCM. The images show the disappearance of PHB inclusions at the stationary phase of growth and completely disappeared after 34 h of cultivation.
Ionization Efficiency Study for Low Energy Nuclear Recoils in Germanium
Creators: name: Barker, D.
name: Wei, W. -Z.
name: Mei, D. -M.
name: Zhang, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We used the internal conversion ($E_0$ transition) of germanium-72 to indirectly measure the low energy nuclear recoils of germanium. Together with a reliable Monte Carlo package, in which we implement the internal conversion process, the data was compared to the Lindhard ($k$=0.159) and Barker-Mei models. A shape analysis indicates that both models agree well with data in the region of interest within 4%. The most probable value (MPV) of the nuclear recoils obtained from the shape analysis is 17.5 keV with an average path-length of 0.014 $μ$m.
description: 22 pages, 13 figures
A vertebrate fauna from late Tertiary beds near Frazier Mountain, California
Creators: name: Bass, Manuel N.
Publisher: name: California Institute of Technology
Year: 1951
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: From 1932 to 1950 vertebrate fossils were collected
in the Hungry Valley area located in the northern half
of the Black Mountain quadrangle, California. The
fauna described in this paper was found between horizons
approximately 350 feet below and 600 feet above the
division established by Crowell separating the Hungry
Valley formation and the Peace Valley beds. Fragmentary
fossils and nature of the beds in which found suggest
lake and alluvial fan deposits.

The fauna is a typical plains fauna except for the
absence of carnivores which were presumably present but
found easy prey on grasslands well removed from the
sites of deposition. Perissodactyls, among which are
at least two species of Pliohippus (including the new
species P. crowelli), a Neohipparion?, a tapir and a
rhinocerotid, dominate the assemblage. Artiodaotyls
include a new species of llama-like camel, Tanupolama?
montis,	as well as a larger camel and an antilocaprid.

The vertebrate-bearing strata overlie beds dated
by Axelrod as middle Pliocene on the basis of plant
remains. Crowell regarded the Peace Valley beds as
middle Pliocene and the Hungry Valley formation as
largely upper Pliocene.

P. crowelli although apparently more advanced than
P. spectans, is regarded as belonging to the Hemphillian
stage. Largely on this basis, the Peace Valley beds and
several hundred feet at the base of the Hungry Valley
formation are referred to middle Pliocene; the bulk of
the Hungry Valley formation is presumably upper Pliocene.
This conclusion is in accord with the view that North
American rhinoceroses became extinct by the close of the
Hemphillian stage.
Tο Καθεστώς Έρευνας και Διάσωσης (SAR) στο Αιγαίο Πέλαγος και τη Νοτιοανατολική Μεσόγειο
Creators: name: Καμηλούδη, Χρυσούλα-Ειρήνη Ισίδωρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2025
Subjects: Έρευνα και Διάσωση
Νοτιοανατολική Μεσόγειος Θάλασσα
Research and Rescue
Southeastern Mediterranean Sea
EUROSUR

description: Η παρούσα διπλωματική μελέτη εξετάζει το νομικό πλαίσιο και τις προκλήσεις εφαρμογής των Επιχειρήσεων Έρευνας και Διάσωσης (SAR) στη Νοτιοανατολική Μεσόγειο, εστιάζοντας στην Ελλάδα, την Τουρκία και την Κύπρο. Οι επιχειρήσεις SAR είναι κρίσιμες ανθρωπιστικές προσπάθειες που αποσκοπούν στη διάσωση ζωών στη θάλασσα και στον αέρα, συχνά κάτω από περίπλοκες γεωπολιτικές συνθήκες. Η μελέτη αναλύει τις υπάρχουσες νομικές δομές που διέπουν τις επιχειρήσεις SAR, περιλαμβανομένων διεθνών συνθηκών και εθνικών νομοθεσιών, και αναδεικνύει τις λειτουργικές προκλήσεις που τίθενται από πολιτικές εντάσεις, εδαφικές διαφορές και αυξανόμενες ροές μετανάστευσης. Μέσω μιας λεπτομερούς ανάλυσης των συστημάτων SAR στην Ελλάδα, την Τουρκία και την Κύπρο, η διπλωματική μελέτη εντοπίζει βασικούς παράγοντες που δυσχεραίνουν την αποτελεσματική εφαρμογή των επιχειρήσεων SAR, όπως οι αντικρουόμενοι ισχυρισμοί για τον εναέριο χώρο και τα χωρικά ύδατα. Η έρευνα υπογραμμίζει τη σημασία της διεθνούς συνεργασίας και της νομικής σαφήνειας για την ενίσχυση της αποτελεσματικότητας και της ανθρωπιστικής διάστασης των αποστολών SAR. Συνδυάζοντας νομικές, ιστορικές και γεωπολιτικές προοπτικές, η παρούσα εργασία συμβάλλει σε μια βαθύτερη κατανόηση της πολυδιάστατης φύσης των επιχειρήσεων SAR στη Νοτιοανατολική Μεσόγειο και προτείνει συστάσεις για τη βελτίωση του συντονισμού και των στρατηγικών αντίδρασης στην κρίσιμη αυτή περιοχή.
description: This thesis explores the legal framework and implementation challenges of Search and Rescue (SAR) operations in the Southeastern Mediterranean Sea, focusing on Greece, Turkey, and Cyprus. SAR operations are critical humanitarian efforts aimed at saving lives at sea and in the air, often under complex geopolitical conditions. The study examines the existing legal structures governing SAR, including international conventions and national laws, and highlights the operational challenges posed by political tensions, territorial disputes, and rising migration flows. Through a detailed analysis of the SAR systems in Greece, Turkey, and Cyprus, the thesis identifies key factors that complicate effective SAR implementation, such as conflicting claims over airspace and territorial waters. The research underscores the importance of international cooperation and legal clarity in enhancing the efficiency and humanitarian impact of SAR missions. By integrating legal, historical, and geopolitical perspectives, this work contributes to a deeper understanding of the multifaceted nature of SAR operations in the Southeastern Mediterranean and offers recommendations for improving coordination and response strategies in this critical region.