cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gains from Others’ Losses: Technology Trajectories and the Global Division of Firms
Creators: name: Chia-Hsuan  Yang
name: Nugent, Rebecca
name: Fuchs, Erica
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: This paper offers new insights into the role of firms versus individuals in driving technology directions, and the extent to which human capital may be lost during industrial shifts. We explore in particular whether (1) due to different offshore production economics, firms who move manufacturing offshore slow U.S.-based R&D activities in an emerging technology and (2) the inventors originally within these offshoring firms, leave, and continue innovating in the emerging technology at different institutions. We focus on the 28 leading U.S. optoelectronic component manufactures for telecommunications and the inventors who patent at these firms. We triangulate hand-classified USPTO patents, SEC filings, inventor resumes, survey data, and select interviews of key inventors. We find that, in the case of U.S. optoelectronic component manufacturers for telecommunications, offshoring is associated with a decrease in innovation in the emerging technology, but an increase in all other types of patenting. While the majority of inventors depart to firms outside the industry and stop work in the emerging technology, an important minority of emerging technology inventors at the offshoring firms depart to a single onshore firm in the same industry (which gains from others’ losses and subsequently dominates this space). Our results suggest a strong role for firms and firm strategy in driving innovation directions, and the corresponding opportunities faced by individuals.
Dissecting the Cosmic Infrared Background with 3D Instruments
Creators: name: Clements, D. L.
name: Isaak, K. G.
name: Madden, S. C.
name: Pearson, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The cosmic infrared background (CIB) consists of emission from distant, dusty, star-forming galaxies. Energetically, the CIB is very important as it contains as much energy as the extragalactic optical background. The nature and evolutionary status of the objects making up the background are, however, unclear. The CIB peaks at ~150 microns, and as such is most effectively studied from space. The limited apertures of space-borne telescopes set the angular resolution that can be attained, and so even Herschel, with its 3.5m diameter, will be confusion-limited at this wavelengths at ~5mJy. The bulk of the galaxies contributing to the CIB are fainter than this, so it is difficult to study them without interferometry. Here we present the results of a preliminary study of an alternative way of probing fainter than the continuum confusion limit using far-IR imaging spectroscopy. An instrument capable of such observations is being planned for SPICA - a proposed Japanese mission with an aperture equivalent to that of Herschel and more than 2 orders of magnitude more sensitive. We investigate the potential of imaging spectrometers to break the continuum confusion limit. We have simulated the capabilities of a spectrometer with modest field of view (2'x2'), moderate spectral resolution (R~1-2000) and high sensitivity. We find that such an instrument is capable of not only detecting line emission from sources with continuum fluxes substantially below the confusion limit, but also of determining their redshifts and, where multiple lines are detected, some emission line diagnostics. We conclude that 3-D imaging spectrometers on cooled far-IR space telescopes will be powerful new tools for extragalactic far-IR astronomy.
description: Accepted for publication in Astronomy & Astrophysics
Goniolimon tataricum Boiss.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Plumbaginaceae
Goniolimon
Goniolimon tataricum

description: Statice tatarica Linnaeus, Species Plantarum 1: 275. 1753.
"Habitat in Tataria." RCN: 2193.
 Lectotype (designated here by Edmondson): Amman, s.n., Herb. Linn. No. 395.12 (LINN).
 Current name:  Goniolimon tataricum  (L.) Boiss. (Plumbaginaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part S), pp. 806-877 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 874, DOI: 10.5281/zenodo.291971
Meson2006 Summary: Theory
Creators: name: Barnes, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: This is a summary of theoretical plenary contributions to the biennial hadron physics conference Meson2006, which was the ninth in this series. The topics covered in the meeting include low energy pion-pion and pion-nucleon interactions, photoproduction and hadronic production of light mesons and baryons,in-medium effects, recent developments in charmed mesons, charmonia and B mesons, the status of exotica, and some related topics such as final state interactions. In this contribution we review and summarize the plenary talks presented by theorists at the meeting, and emphasize some of the main points of their presentations. Where appropriate we will add brief comments on some aspects of QCD spectroscopy. Finally, following tradition, we conclude with a new Feynman story.
description: 4 pages, 1 Feynman story. Invited summary talk (theory) at the 9th International Workshop on Meson Production, Properties and Interactions MESON2006 (Krakow, 9-13 June 2006)
Optimal Alarms for Vehicular Collision Detection
Creators: name: Motro, Michael
name: Ghosh, Joydeep
name: Bhat, Chandra
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: An important application of intelligent vehicles is advance detection of dangerous events such as collisions. This problem is framed as a problem of optimal alarm choice given predictive models for vehicle location and motion. Techniques for real-time collision detection are surveyed and grouped into three classes: random Monte Carlo sampling, faster deterministic approximations, and machine learning models trained by simulation. Theoretical guarantees on the performance of these collision detection techniques are provided where possible, and empirical analysis is provided for two example scenarios. Results validate Monte Carlo sampling as a robust solution despite its simplicity.
Development of Calcium-Polyphosphate Particles for Therapeutic Delivery in the Joint
Creators: name: Mahendran, Janani
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2020
Subjects: Articular cartilage
Osteoarthritis
Polyphosphate

description: Osteoarthritis (OA) is the most common type of joint disease that affects nearly 5 million people in Canada alone. OA involves degenerative processes affecting the integrity of articular cartilage, a thin soft tissue at the surface of subchondral bones in joints that facilitates smooth and friction less movement. This disease also affects the other tissues of the joint, including the synovium and its resident cells the fibroblast-like and macrophage-like synoviocytes. Consequences of this pathology include painful movement and stiff joints resulting in loss of range of motion. A broad number of factors may contribute to the development of OA, including obesity, injuries, infections, genetic predispositions and aging. Although there are a number of medications used for the treatment of OA, these only serve to manage its symptoms. An actual cure is yet to be developed. Inorganic polyphosphate (polyP) has previously been identified as a potentially interesting biomolecule for the treatment of OA because of its ability to stimulate tissue formation by chondrocytes - the cells found in the articular cartilage. In this thesis, we first aimed to evaluate the potential of polyP as a therapeutic for joint diseases such as OA further, by characterizing its effects on a number of cell processes (e.g., proliferation, metabolic activity, migration, matrix accumulation) in fibroblast-like synoviocytes (FLS) - specialized cells found in the synovium encapsulating the synovial joints. The synovium is an important tissue for joint physiology and OA pathogenesis; it is thus essential that any therapeutic introduced in the joint not impact this tissue negatively. These studies showed that polyP significantly inhibits FLS proliferation. This effect is interesting in the context of OA as FLS proliferation is associated with progression of the disease. PolyP also increased FLS migration rate and caused changes in metabolic activity, although the trends were inconsistent over time. We also optimized a new protocol for the synthesis of sub-micron calcium-polyP particles. Nanoparticle drug delivery for OA treatment has been gaining importance in recent years as a way to access the cells in cartilage through the small pores in the extracellular matrix (ECM) and increase drug retention time in the joint. The calcium-polyP particles were synthesized by drop-wise addition of polyP into a calcium solution at controlled pH, drop rate and mixing rate. Particles size and stability before and after sterilization were measured by dynamic light scattering. We showed that the addition of sodium citrate dihydrate as a capping agent largely prevented particle agglomeration and increased particle stability. Control over particle size, particularly in the nanometer scale, remains to be achieved; however, this work is a first step towards the development of polyP delivery systems for the treatment of OA.
Electroweak-Charged Bound States as LHC Probes of Hidden Forces
Creators: name: Li, Lingfeng
name: Salvioni, Ennio
name: Tsai, Yuhsin
name: Zheng, Rui
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We explore the LHC reach on beyond-the-Standard Model (BSM) particles $X$ associated with a new strong force in a hidden sector. We focus on the motivated scenario where the SM and hidden sectors are connected by fermionic mediators $ψ^{+, 0}$ that carry SM electroweak charges. The most promising signal is the Drell-Yan production of a $ψ^\pm \barψ^0$ pair, which forms an electrically charged vector bound state $Υ^\pm$ due to the hidden force and later undergoes resonant annihilation into $W^\pm X$. We analyze this final state in detail in the cases where $X$ is a real scalar $ϕ$ that decays to $b\bar{b}$, or a dark photon $γ_d$ that decays to dileptons. For prompt $X$ decays, we show that the corresponding signatures can be efficiently probed by extending the existing ATLAS and CMS diboson searches to include heavy resonance decays into BSM particles. For long-lived $X$, we propose new searches where the requirement of a prompt hard lepton originating from the $W$ boson ensures triggering and essentially removes any SM backgrounds. To illustrate the potential of our results, we interpret them within two explicit models that contain strong hidden forces and electroweak-charged mediators, namely $λ$-supersymmetry (SUSY) and non-SUSY ultraviolet extensions of the Twin Higgs model. The resonant nature of the signals allows for the reconstruction of the mass of both $Υ^\pm$ and $X$, thus providing a wealth of information about the hidden sector.
description: 12 pages, 9 figures
Using the e^{+/-} mu^{-/+} + E^{miss}_T signature in the search for supersymmetry and lepton flavour violation in neutralino decays
Creators: name: Andreev, Yu. M.
name: Bityukov, S. I.
name: Krasnikov, N. V.
name: Toropin, A. N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The LHC (CMS) discovery potential of the $e^{\pm}μ^{\mp} + E^{miss}_T$ signature in the search for supersymmetry and lepton flavour violation in neutralino decays is studied. A detailed study is done for the CMS test points LM1-LM9. It is shown that for the point LM1 it is possible to detect lepton flavour violation in neutralino decays with lepton flavour violating branching $Br(\tildeχ^0_2 \to μ^{\pm}e^{\mp}\tildeχ^0_1) \geq 0.04 Br(\tildeχ^0_2 \to e^{+}e^{-}\tildeχ^0_1, μ^{+}μ^{-} \tildeχ^0_1)$ for an integral luminosity $10 fb^{-1}$. A discovery potential in the mSUGRA-SUSY scenario with $\tan β= 10, ~sign(μ) = +$ in the $(m_0, m_{1/2})$ plane using the $e^{\pm}μ^{\mp} + E^{miss}_T$ signature is determined.
description: 1 latex (20 pages), 9 eps (figures) files
Tension and Systematics in the Gold06 SnIa Dataset
Creators: name: Nesseris, S.
name: Perivolaropoulos, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Gold06 SnIa dataset recently released in astro-ph/0611572 consists of five distinct subsets defined by the group or instrument that discovered and analyzed the corresponding data. These subsets are: the SNLS subset (47 SnIa), the HST subset (30 SnIa), the HZSST subset (41 SnIa), the SCP subset (26 SnIa) and the Low Redshift (LR) subset (38 SnIa). These subsets sum up to the 182 SnIa of the Gold06 dataset. We use Monte-Carlo simulations to study the statistical consistency of each one of the above subsets with the full Gold06 dataset. In particular, we compare the best fit $w(z)$ parameters (w_0,w_1) obtained by subtracting each one of the above subsets from the Gold06 dataset (subset truncation), with the corresponding best fit parameters (w^r_0,w^r_1) obtained by subtracting the same number of randomly selected SnIa from the same redshift range of the Gold06 dataset (random truncation). We find that the probability for (w^r_0,w^r_1)=(w_0,w_1) is large for the Gold06 minus SCP (Gold06-SCP) truncation but is less than 5% for the Gold06-SNLS, Gold06-HZSST and Gold06-HST truncations. This result implies that the Gold06 dataset is not statistically homogeneous. By comparing the values of the best fit (w_0,w_1) for each subset truncation we find that the tension among subsets is such that the SNLS and HST subsets are statistically consistent with each other and `pull' towards LCDM (w_0=-1,w_1=0) while the HZSST subset is statistically distinct and strongly `pulls' towards a varying w(z) crossing the line $w=-1$ from below (w_00). We also isolate six SnIa that are mostly responsible for this behavior of the HZSST subset.
description: 10 pages, 6 Figures. References added. The mathematica files with the numerical analysis of the paper may be found at http://leandros.physics.uoi.gr/gold06/gold06.htm
Arenaria hispanica Spreng.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Brassicales
Brassicaceae
Arenaria
Arenaria hispanica

description: Stellaria arenaria Linnaeus, Species Plantarum 2: 1196. 1753.
"Habitat in Hispania." RCN: 3281.
 Lectotype (López González in Cafferty & Jarvis in Taxon 53: 1053. 2004): Herb. Linn. No. 581.14 (LINN).
 Current name:  Arenaria hispanica  Spreng. (Caryophyllaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part S), pp. 806-877 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 874, DOI: 10.5281/zenodo.291971
Fundamental Reform in Public Safety Communications Policy
Creators: name: Peha, Jon
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: All across the country, there have been failures in the communications systems used by first responders, such as firefighters, police, paramedics, and the National Guard. These failures can cost lives in emergencies both large and small. This problem has gained particular attention in the tragic aftermaths of the 9/11 attacks and Hurricane Katrina, when inadequacies in the current system were particularly obvious, but attention has not yet translated to significant progress. As observed by the House Select Bipartisan Committee to Investigate Hurricane Katrina, “[w]ithout functioning communications systems, first responders and government officials cannot establish meaningful command and control, nor can they develop the situational awareness necessary to know how and where to direct their response and recovery efforts.”
Nuclear structure properties and weak interaction rates of even-even Fe isotopes
Creators: name: Nabi, Jameel-Un
name: Boyukata, Mahmut
name: Ullah, Asim
name: Riaz, Muhammad
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Nuclear structure properties and weak interaction rates of neutron rich even even iron (Fe) isotopes (A = 50 70) are investigated using the Interacting Boson Model1 (IBM1) and the proton neutron Quasiparticle Random Phase Approximation (pnQRPA) model. The IBM1 is used for the calculation of energy levels and the B(E2) values of neutron rich Fe isotopes. Later their geometry was predicted within the potential energy formalism of the IBM1 model. Weak interaction rates on neutron rich nuclei are needed for the modeling and simulation of presupernova evolution of massive stars. In the current study, we investigate the possible effect of nuclear deformation on stellar rates of even even Fe isotopes. The pnQRPA model is applied to calculate the weak interaction rates of selected Fe isotopes using three different values of deformation parameter. It is noted that, in general, bigger deformation values led to smaller total strength and larger centroid values of the resulting Gamow Teller distributions. This later translated to smaller computed weak interaction rates. The current finding warrants further investigation before it may be generalized.The reported stellar rates are up to 4 orders of magnitude smaller than previous calculations and may bear astrophysical significance.
description: 27 pages, 6 figures, 7 Tables
Strongly Coupled Quark-Gluon Plasma: The Status Report
Creators: name: Shuryak, E. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: RHIC data have shown robust collective flows, strong jet and charm quenching, and charm flow. Recently ``conical flows'' from damped jets were seen. Non-Abelian classical strongly coupled plasmas were introduced and studied via molecular dynamics, with first results for its transport (diffusion and viscosity) reported. Quantum-mechanical studies reveal the survival for $T>T_c$ of the lowest binary states, including colored ones, and also of some manybody ones such as baryons. ``Polymeric chains'' $\bar q.g.g... q$ are also bound in some range of $T$, perhaps the progenitors of the QCD strings. AdS/CFT applications advanced to a completely new level of detail: they now include studies of thermal heavy quark motion, jet quenching and even conical flow. Confinement is however still beyond simply strong coupling: its de-facto inclusion the so called AdS/QCD approach is so far added as a model, while true understanding may probably only come from further insights into the monopole dynamics.
description: It is brief review of the field, in 14 pages, written for proceedings of Continuous Advances in QCD, April 2006. As the progress is very rapid, it includes several new papers which appeared between April and August. The version 2 has more references and few statements get clarified better
Estimation of M1 scissors mode strength for deformed nuclei in the medium to heavy mass region by statistical Hauser-Feshbach model calculations
Creators: name: Mumpower, M. R.
name: Kawano, T.
name: Ullmann, J. L.
name: Krtička, M.
name: Sprouse, T. M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Radiative neutron capture is an important nuclear reaction whose accurate description is needed for many applications ranging from nuclear technology to nuclear astrophysics. The description of such a process relies on the Hauser-Feshbach theory which requires the nuclear optical potential, level density and $γ$-strength function as model inputs. It has recently been suggested that the M1 scissors mode may explain discrepancies between theoretical calculations and evaluated data. We explore statistical model calculations with the strength of the M1 scissors mode estimated to be dependent on the nuclear deformation of the compound system. We show that the form of the M1 scissors mode improves the theoretical description of evaluated data and the match to experiment in both the fission product and actinide regions. Since the scissors mode occurs in the range of a few keV $\sim$ a few MeV, it may also impact the neutron capture cross sections of neutron-rich nuclei that participate in the rapid neutron capture process of nucleosynthesis. We comment on the possible impact to nucleosynthesis by evaluating neutron capture rates for neutron-rich nuclei with the M1 scissors mode active.
description: 11 pages, 9 figures
Diverse Long-Term Variability of Five Candidate High-Mass X-ray Binaries from Swift Burst Alert Telescope Observations
Creators: name: Corbet, Robin H. D.
name: Coley, Joel B.
name: Krimm, Hans A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an investigation of long-term modulation in the X-ray light curves of five little-studied candidate high-mass X-ray binaries using the Swift Burst Alert Telescope. IGR J14488-5942 and AX J1700.2-4220 show strong modulation at periods of 49.6 and 44 days, respectively, which are interpreted as orbital periods of Be star systems. For IGR J14488-5942, observations with Swift X-ray Telescope show a hint of pulsations at 33.4 s. For AX J1700.2-4220, 54 s pulsations were previously found with XMM. Swift J1816.7-1613 exhibits complicated behavior. The strongest peak in the power spectrum is at a period near 150 days, but this conflicts with a determination of a period of 118.5 days by La Parola et al. (2014). AX J1820.5-1434 has been proposed to exhibit modulation near 54 days, but the extended BAT observations suggest modulation at slightly longer than double this at approximately 111 days. There appears to be a long-term change in the shape of the modulation near 111 days, which may explain the apparent discrepancy. The X-ray pulsar XTE J1906+090, which was previously proposed to be a Be star system with an orbital period of ~30 days from pulse timing, shows peaks in the power spectrum at 81 and 173 days. The origins of these periods are unclear, although they might be the orbital period and a superorbital period respectively. For all five sources, the long-term variability, together with the combination of orbital and proposed pulse periods, suggests that the sources contain Be star mass donors.
description: Accepted for publication in The Astrophysical Journal. 15 pages, 27 figures. (v2 corrects citation)
Ronald Manson Weston: Chronicles of a Fleet Air Arm Pilot
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: These are the assembled documents, letters, photos and notes of Ronald Manson Weston who volunteered and then trained as a pilot for the Fleet Air Arm during World War II. They are arranged in chronological order with additional information from various sources added to provide background information on the locations Ron visited and trained at during his time in New Zealand and overseas. The collection is assembled and presents a picture of the experiences, feelings and thoughts of Ron, his family and friends as they shared in his service for the country and the Allied war effort.
Theoretical overview of atomic parity violation. Recent developments and challenges
Creators: name: Derevianko, Andrei
name: Porsev, Sergey G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Recent advances in interpreting the most accurate to-date measurement of atomic parity violation in Cs are reviewed. The inferred nuclear weak charge, Q_W = - 72.65(28)_expt (36)_theor, agrees with the prediction of the standard model at 1 sigma level. Further improved interpretation is limited by an accuracy of solving basic correlation problem of atomic structure. We report on our progress in solving this problem within the relativistic coupled-cluster formalism. We include single-, double- and triple- electronic excitations in the coupled-cluster expansion. Numerical results for energies, electric-dipole matrix elements, and hyperfine-structure constants of Cs are presented.
description: PAVI'06 proceedings + EJPA; refs + SM Qw fixed
Generalized framework for testing gravity with gravitational-wave propagation. I. Formulation
Creators: name: Nishizawa, Atsushi
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The direct detection of gravitational waves (GW) from merging binary black holes and neutron stars mark the beginning of a new era in gravitational physics, and it brings forth new opportunities to test theories of gravity. To this end, it is crucial to search for anomalous deviations from general relativity in a model-independent way, irrespective of gravity theories, GW sources, and background spacetimes. In this paper, we propose a new universal framework for testing gravity with GW, based on the generalized propagation of a GW in an effective field theory that describes modification of gravity at cosmological scales. Then we perform a parameter estimation study, showing how well the future observation of GW can constrain the model parameters in the generalized models of GW propagation.
description: 16 pages, 4 figures, Physical Review D accepted
New hepatoprotective isoflavone glucosides from Pueraria lobata (Willd.) Ohwi
Creators: name: Sun, Yingjie
name: Zhang, Hongmin
name: Cheng, Ming
name: Cao, Shijie
name: Qiao, Miao
name: Zhang, Boli
name: Ding, Liqin
name: Qiu, Feng
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Two new isoflavone glucosides, 3′-methoxyneopuerarin A (1) and 3′-methoxyneopuerarin B (2), together with nine known isoflavones including puerarin (3), neopuerarin A (4), neopuerarin B (5), daidzin (6), daidzein (7), 3′-methoxypuerarin (PG-3) (8), puerarin xyloside (9), mirificin (10), 3′-hydroxypuerarin (11) were isolated from the water extraction of the dried roots of Pueraria lobata (Willd.) Ohwi. Their structures were elucidated by the means of spectroscopic and chromatographic analysis methods. All compounds were evaluated for their hepatoprotective activity on HepG2 cells. All of them showed statistically significant hepatoprotective effect.
From TV to Public Safety: The Need for Fundamental Reform in Public Safety Spectrum and Communications Policy
Creators: name: Peha, Jon
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: The events surrounding Hurricane Katrina and the 9/11 attacks demonstrated that the communications systems used by first responders in the United States are not adequate to meet the challenges of a post-9/11 world. The U.S. system is based on assumptions that local agencies should have maximal flexibility at the expense of standardization and regional coordination, that commercial carriers and municipal systems have little role to play, that public safety should not share spectrum or network infrastructure, and that narrowband voice applications should dominate. Many programs have been proposed to incrementally improve public safety communications systems, but without any fundamental changes to these policies, such incremental changes are likely to have limited impact. However, a tremendous opportunity is coming thanks to the transition to digital television; 24 MHz of spectrum has been identified for reallocation from TV to public safety in 2009, roughly doubling the public safety spectrum below 2 GHz. Unless policymakers act, this new spectrum will be managed under these same old policies. This paper explains why it is time for fundamental reform. Policy reforms should include some combination of: shifting some responsibility and authority for decisions about public safety communications infrastructure from many independent local government agencies to the federal government; further expanding the role of commercial service providers, municipal Wi-Fi networks, and other systems that serve the public; allowing public safety to share spectrum, and possibly multi-purpose network infrastructure as well, with other users; and further expanding capabilities beyond traditional voice communications. Since the TV band spectrum reallocated to public safety has few legacy systems that must be accommodated or moved, it is an excellent place to launch a new policy.
Minuartia biflora Schinz & Thell.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Caryophyllaceae
Minuartia
Minuartia biflora

description: Stellaria biflora Linnaeus, Species Plantarum 1: 422. 1753.
"Habitat in Alpibus Lapponicis." RCN: 3280.
 Lectotype (Jonsell & Jarvis in Nordic J. Bot. 14: 159. 1994): Herb. Linn. No. 584.11 (LINN).
 Current name:  Minuartia biflora  (L.) Schinz & Thell. (Caryophyllaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part S), pp. 806-877 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 874, DOI: 10.5281/zenodo.291971
The turbulent cascade in five dimensions
Creators: name: Cardesa, José I.
name: Vela-Martín, Alberto
name: Jiménez, Javier
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: To the naked eye, turbulent flows exhibit whirls of many different sizes. To each size, or scale, corresponds a fraction of the total energy resulting from a cascade in five dimensions: scale, time and three-dimensional space. Understanding this process is critical to modeling strategies of geophysical and industrial flows. By tracking the flow regions containing energy in different scales, we have evidenced the statistical predominance of a cross-scale link whereby fluid lumps of energy at scale $Δ$ appear within lumps of scale $2Δ$ and die within those of scale $Δ/2$. Our approach uncovers the energy cascade in a simple water-like fluid, offering new insights to turbulence models while paving the way to similar analysis in conducting fluids, quantum fluids and plasmas.
description: Submitted to Science on 19th May 2017, accepted for publication on 26th July 2017. To appear in Vol 357. 14 pages, 4 figures in manuscript, 6 figures and 1 table in supplementary material
Signatures of indistinguishability in bosonic many-body dynamics
Creators: name: Brünner, Tobias
name: Dufour, Gabriel
name: Rodríguez, Alberto
name: Buchleitner, Andreas
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dynamics of bosons in generic multimode systems, such as Bose-Hubbard models, is not only determined by interactions among the particles, but also by their mutual indistinguishability manifested in many-particle interference. We introduce a measure of indistinguishability for Fock states of bosons whose mutual distinguishability is controlled by an internal degree of freedom. We demonstrate how this measure emerges both in the non-interacting and interacting evolution of observables. In particular, we find an unambiguous relationship between our measure and the variance of single-particle observables in the non-interacting limit. A non-vanishing interaction leads to a hierarchy of interaction-induced interference processes, such that even the expectation value of single-particle observables is influenced by the degree of indistinguishability.
Possible new resonance at the $D^* {\bar D^*}$ threshold in $e^+e^-$ annihilation
Creators: name: Dubynskiy, S.
name: Voloshin, M. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We argue that the recent CLEO-c data on $e^+e^-$ annihilation into pairs of charmed mesons at c.m. energy around 4.0 GeV are not well described by a single resonance $ψ(4040)$, but can be better understood if there is an additional narrow resonance with mass within few MeV from the $D^* {\bar D}^*$ threshold.
description: 9 pages, 1 figure
Gaugeon formalism for the two-form gauge fields
Creators: name: Aochi, Masataka
name: Endo, Ryusuke
name: Miura, Hikaru
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a BRST symmetric gaugeon formalism for the two-form gauge fields. A set of vector gaugeon fields is introduced as a quantum gauge freedom. One of the gaugeon fields satisfies a higher derivative field equation; this property is necessary to change the gauge-fixing parameter of the two-form gauge field. A naive Lagrangian for the vector gaugeon fields is itself invariant under a gauge transformation for the vector gaugeon field. The Lagrangian of our theory includes the gauge-fixing terms for the gaugeon fields and corresponding Faddeev--Popov ghosts terms.
description: 17pages, 3 figures
The Microscopic Model of BiFeO$_3$
Creators: name: Fishman, Randy S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Many years and great effort have been spent constructing the microscopic model for the room temperature multiferroic BiFeO3 However, earlier models implicitly assumed that the cycloidal wavevector q was confined to one of the three-fold symmetric axis in the hexagonal plane normal to the electric polarization. Because recent measurements indicate that q can be rotated by a magnetic field, it is essential to properly treat the anisotropy that confines q at low fields. We show that the anisotropy energy $-K_3 S^6 \sin^6 θ\cos 6 ϕ$ confines the wavevectors q to the three-fold axis $ϕ=0$ and $+-2 π/3$ within the hexagonal plane with $θ= π/2$.
Finding an Effective Sustainable Model for a Wireless Metropolitan-Area Network: Analyzing the Case of Pittsburgh
Creators: name: Peha, Jon
name: Gilden, Beth E.
name: Savage, Russell J.
name: Sheng, Steve
name: Yankiver, Bradford L.
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: Many cities are seeking ways to facilitate the deployment of a wireless metropolitan-area network (WiMAN) based on wifi technology. City leaders must often balance competing goals, including the desire to maximize the area in which wireless services will be available, to maximize competition among providers, to minimize subsidies from government agencies and non-profit organizations, and to ensure financial sustainability. This paper investigates the extent to which these goals can be met with four basic models: one citywide monopoly WiMAN provider, facilities-based competition from multiple citywide WiMAN providers, one citywide WiMAN offering wholesale services to competing retail service providers, and open competition where multiple providers are free to serve only the more profitable neighborhoods. We estimate costs for constructing and operating a WiMAN in Pittsburgh using a sample architecture. We develop a regression model to roughly predict subscription rates and revenues based on city demographics, and apply that model to Pittsburgh, Philadelphia, and Minneapolis. Using these rough estimates, we analyze the extent to which competition can be sustained and service can be provided citywide under different models, and with different forms of intervention. The interventions analyzed include providing one-time or annual subsidies (from government or non-profit foundations), guaranteeing that city government will be a large customer, advertising wireless services, and facilitating access to locations that are suitable for antenna placement. For Pittsburgh, we conclude that citywide facilitiesbased competition is not financially sustainable. Citywide monopoly operation and citywide competition at the retail level are almost equally viable financially, and both appear sustainable, but financial failure is within our margin of error. Moreover, we show that retail competition can only survive if the City has leverage to prevent the monopoly wholesaler from raising prices to the level that maximizes the wholesaler’s profit, as this will end competition. Finally, the City or a powerful third party must provide some form of inducement such as becoming an anchor customer to motivate providers to serve all parts of the city. Otherwise, providers will maximize profit by focusing on high-income neighborhoods, leaving much of the city unserved.
Virtual and welded periods of classical knots
Creators: name: Boden, Hans U.
name: Nicas, Andrew J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 57M27

description: We show that any virtual or welded period of a classical knot $K$ can be realized as a classical period. A direct consequence is that a classical knot admits only finitely many virtual or welded periods.
description: Fixed typos and added new figure
High visibility temporal ghost imaging with classical light
Creators: name: Liu, Jianbin
name: Wang, Jingjing
name: Chen, Hui
name: Zheng, Huaibin
name: Liu, Yanyan
name: Zhou, Yu
name: Li, Fu-li
name: Xu, Zhuo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: High visibility temporal ghost imaging with classical light is possible when superbunching pseudothermal light is employed. In the numerical simulation, the visibility of temporal ghost imaging with pseudothermal light equaling ($4.7\pm 0.2$)\% can be increased to ($75\pm 8$)\% in the same scheme with superbunching pseudothermal light. The reasons for the difference in visibility and quality of the retrieved images in different situations are discussed in detail. It is concluded that high visibility and high quality temporal ghost image can be obtained by collecting large enough number of data points. The results are helpful to understand the difference between ghost imaging with classical light and entangled photon pairs. The superbunching pseudothermal light can be employed to improve the image quality in ghost imaging applications.
description: 7 pages, 6 figures. Comments are welcome
Experimental Ti I oscillator strengths and their application to cool star analysis
Creators: name: Blackwell-Whitehead, R. J.
name: Lundberg, H.
name: Nave, G.
name: Pickering, J. C.
name: Jones, H. R. A.
name: Lyubchik, Y.
name: Pavlenko, Y. V.
name: Viti, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report experimental oscillator strengths for 88 Ti I transitions covering the wavelength range 465 to 3892 nm, 67 of which had no previous experimental values. Radiative lifetimes for thirteen energy levels, including the low energy levels 3d2 (3F) 4s4p (3P) z5Dj, have been measured using time resolved laser induced fluorescence. Intensity calibrated Ti I spectra have been measured using Fourier transform spectroscopy to determine branching fractions for the decay channels of these levels. The branching fractions are combined with the radiative lifetimes to yield absolute transition probabilities and oscillator strengths. Our measurements include 50 transitions in the previously unobserved infrared region lambda > 1000 nm, a region of particular interest to the analysis of cool stars and brown dwarfs.
description: 8 pages, 2 figures, journal article
Recursive Construction of Higgs-Plus-Multiparton Loop Amplitudes: The Last of the Phi-nite Loop Amplitudes
Creators: name: Berger, Carola F.
name: Del Duca, Vittorio
name: Dixon, Lance J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a scalar field, such as the Higgs boson H, coupled to gluons via the effective operator H tr G_{mu nu} G^{mu nu} induced by a heavy-quark loop. We treat H as the real part of a complex field phi which couples to the self-dual part of the gluon field-strength, via the operator phi tr G_{SD mu nu} G_{SD}^{mu nu}, whereas the conjugate field phi^dagger couples to the anti-self-dual part. There are three infinite sequences of amplitudes coupling phi to quarks and gluons that vanish at tree level, and hence are finite at one loop, in the QCD coupling. Using on-shell recursion relations, we find compact expressions for these three sequences of amplitudes and discuss their analytic properties.
description: 63 pages, 7 figures; v2 references added; v3 minor typos corrected and note added; v4 fixed error in eq. (7.11) (lower limit of sum should be l=2, not l=3), also affecting eqs. (7.14), (8.20), (8.21), (8.27) and (8.28)
A Synthetic Spectrum and Light Curve Analysis of the Cataclysmic Variable IX Velorum
Creators: name: Linnell, Albert P.
name: Godon, Patrick
name: Hubeny, Ivan
name: Sion, Edward M.
name: Szkody, Paula
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spectrum synthesis analysis of FUSE and STIS spectra of the cataclysmic variable IX Velorum successfully produces a system model. Light synthesis analysis of K band photometry shows that the accretion disk rim is vertically extended beyond the gravitational equilibrium value.
description: 50 pages, 15 Postscript figures, 8 tables
Experience Curves for Environmental Technology and Their Relationship to Government Actions
Creators: name: Rubin, Edward
name: Taylor, Mary R.
name: Yeh, Sonia
name: Hounshell, David
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: We seek to improve the ability of integrated assessment models (IA) to incorporate changes in CO2 capture and sequestration (CCS) technology cost and performance over time. This paper presents results of new research that examines past experience in controlling other major power plant emissions that might serve as a reasonable guide to future rates of technological progress in CCS systems. In particular, we focus on U.S. and worldwide experience with sulfur dioxide (SO2) and nitrogen oxide (NOx) control technologies over the past 30 years.
Non-Canonical MSSM, Unification, And New Particles At The LHC
Creators: name: Gogoladze, Ilia
name: Li, Tianjun
name: Senoguz, V. N.
name: Shafi, Qaisar
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider non-canonical embeddings of the MSSM in high-dimensional orbifold GUTs based on the gauge symmetry SU(N), N=5,6,7,8. The hypercharge normalization factor k_Y can either have unique non-canonical values, such as 23/21 in a six-dimensional SU(7) model, or may lie in a (continuous) interval. Gauge coupling unification and gauge-Yukawa unification can be realized in these models by introducing new particles with masses in the TeV range which may be found at the LHC. In one such example there exist color singlet fractionally charged states.
description: 1+25 pages, 5 figures. v2: Introduction revised, sections reordered, figure 4 corrected
Cerastium cerastoides Britton 1894
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Caryophyllaceae
Cerastium
Cerastium cerastoides

description: Stellaria cerastoides Linnaeus, Species Plantarum 1: 422. 1753.
"Habitat in Alpibus Lapponicis, Horto Dei monspeliensi." RCN: 3279.
 Lectotype (Jonsell & Jarvis in Nordic J. Bot. 14: 159. 1994): Herb. Linn. No. 584.8 (LINN).
 Current name:  Cerastium cerastoides  (L.) Britton (Caryophyllaceae).
 Note: Möschl (in Mem. Soc. Brot. 17: 96. 1964, and later publications) indicated material in LINN as type but did not distinguish between sheets 584.8, 584.9 and 584.10 (LINN). As they are evidently not part of a single gathering, Art. 9.15 does not apply.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part S), pp. 806-877 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 874, DOI: 10.5281/zenodo.291971
Non-conformal higher spin supercurrents
Creators: name: Hutomo, Jessica
name: Kuzenko, Sergei M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In four spacetime dimensions there exist two off-shell formulations for the massless multiplet of superspin $(s+\frac 12)$, where $s=2,3, \dots$. These supersymmetric higher spin gauge theories, known as longitudinal and transverse, are dual to each other and describe two massless fields of spin $(s+\frac 12)$ and $(s+1)$ upon elimination of the auxiliary fields. They respectively reduce, in the limiting case of $s=1$, to the linearised actions for the old minimal and the $n=-1$ non-minimal ${\cal N}=1$ supergravity theories. Associated with these gauge massless theories are non-conformal higher spin supercurrent multiplets which we describe. We demonstrate that the longitudinal higher spin supercurrents are realised in the model for a massive chiral scalar superfield only if $s$ is odd, $s=2n+1$, with $n= 1,2, \dots$.
description: 12 pages; V2: typos corrected; V3: published version