cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Using optical lines to study particle acceleration at supernova remnants
Creators: name: Morlino, Giovanni
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The shocks of several young supernova remnants (SNR) are often associated with very thin optical filaments dominated by Balmer emission resulting from charge-exchange and collisional excitation between neutral Hydrogen from the interstellar medium and shocked protons and electrons. Optical lines are a direct probe of the conditions at the shock, in particular the width of the narrow and broad components reflect the temperature upstream and downstream of the shock, respectively. When the shock accelerate efficiently non-thermal particles, the shock structure changes producing anomalous Balmer lines and it is possible to use their line shape and their spatial profile to check the efficiency of SNR shocks in accelerating cosmic rays. Here we illustrate the kinetic theory of shock acceleration in presence of neutrals with some applications to young SNRs. We show that in three cases (RCW 86, SNR 0509-67.5 and Tycho) anomalous Balmer lines can be explained assuming that a fraction of $\sim 10\%$ of the total shock kinetic energy is converted into not thermal particles, while in one single case, the northwestern part of SN 1006, there is no evidence of efficient acceleration.
description: 9 pages, 5 figures; proceeding for the conference "Cosmic Ray origin - beyond the standard models", San Vito di Cadore, Italy, 16-22 March, 2014
Observation of shell structure in sodium nanowires
Creators: name: Yanson, A. I.
name: Yanson, I. K.
name: van Ruitenbeek, J. M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The quantum states of a system of particles in a finite spatial domain in general consist of a set of discrete energy eigenvalues; these are usually grouped into bunches of degenerate or close-lying levels, called shells. In fermionic systems, this gives rise to a local minimum in the total energy when all the states of a given shell are occupied. In particular, the closed-shell electronic configuration of the noble gases produces their exceptional stability. Shell effects have previously been observed for protons and neutrons in nuclei and for clusters of metal atoms. Here we report the observation of shell effects in an open system - a sodium metal nanowire connecting two bulk sodium metal electrodes, which are progressively pulled apart. We measure oscillations in the statistical distribution of conductance values, for contact cross-sections containing up to a hundred atoms or more. The period follows the law expected from shell-closure effects, similar to the abundance peaks at `magic numbers' of atoms in metal clusters.
description: The argumentation in favour of shell structure owing to the fluctuations in the free energy of the nanowires has been strengthened. Further improvements in the presentation include the plot of the radius of the wires versus shell number in Fig.3
Ultrafast Coherent Spectroscopy of the Fermi Edge Singularity
Creators: name: Porras, Diego
name: Fernandez-Rossier, J.
name: Tejedor, C.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work we present a theoretical description of the transient response of the Fermi Edge Singularity (FES). We study the linear and the nonlinear response of an n-doped QW to laser pulses in the Coherent Control (CC) and Four Wave Mixing (FWM) Configurations. By means of a bosonization formalism we calculate the FWM signal emitted by the sample when it is excited by pulses spectrally peaked around the FES and we show that the long time behavior of the nonlinear signal is very similar to the linear case.
description: Conference paper (13 EP2DS)
A Longitudinal Medical Spanish Program at One US Medical School
Creators: name: Reuland, Daniel S.
name: Alemán, Marco A.
name: Frasier, Pamela Y.
name: Slatt, Lisa M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Policymakers have recommended recruiting or training (or both) more US physicians who can provide care in Spanish. Few longitudinal medical Spanish programs have been described and evaluated.
Cognition and Health Literacy in Patients with Hypertension
Creators: name: Tu, Wanzhu
name: Wu, Jingwei
name: Levinthal, Brian R.
name: Morrow, Daniel G.
name: Murray, Michael D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Approximately half of the US population has marginal or inadequate health literacy, a measure highly associated with health outcomes. This measure is often linked to age and education, but recent evidence from patients with chronic heart failure suggests that much of age-related variability in health literacy can be explained by cognitive abilities (e.g., working memory, processing speed).
Shot noise induced charge and potential fluctuations of edge states in proximity of a gate
Creators: name: Buttiker, Markus
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We evaluate the RC-time of edge states capacitively coupled to a gate located away from a QPC which allows for partial transmission of an edge channel. At long times or low frequencies the RC-time governs the relaxation of charge and current and governs the fluctuations of the equilibrium electrostatic potential. The RC-time in mesoscopic structures is determined by an electrochemical capacitance which depends on the density of states of the edge states and a charge relaxation resistance. In the non-equilibrium case, in the presence of transport, the shot noise leads to charge fluctuations in proximity of the gate which are again determined by the equilibrium electrochemical capacitance but with a novel resistance. The case of multiple edge states is discussed and the effect of a dephasing voltage probe on these resistances is investigated. The potential fluctuations characterized by these capacitances and resistances are of interest since they determine the dephasing rate in Coulomb coupled mesoscopic conductors.
description: To appear in the Proceedings of the XVI Sitges Conference, Statistical and Dynamical Aspects of Mesoscopic Systems, (Lecture Notes in Physics, Springer)
title: The possibility of DTI MRI of the foetal brain
Creators: name: Sokurenko, Maria
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Foetal imaging
subject: CNS
subject: MR-Diffusion/Perfusion
subject: MR
subject: Diagnostic procedure
subject: Normal variants

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Until recently neuro-architectonics of the fetal brain has been studied only through post mortem studies [1]. Advances in fetal MRI acquisition techniques are making possible to gain greater insights into the development of fetal neuro-architecture...
A semi-analytical solver for the Grad-Shafranov equation
Creators: name: Ciro, D.
name: Caldas, I. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In toroidally confined plasmas, the Grad-Shafranov equation, in general a non-linear PDE, describes the hydromagnetic equilibrium of the system. This equation becomes linear when the kinetic pressure is proportional to the poloidal magnetic flux and the squared poloidal current is a quadratic function of it. In this work, the eigenvalue of the associated homogeneous equation is related with the safety factor on the magnetic axis, the plasma beta and the Shafranov shift, then, the adjustable parameters of the particular solution are bounded through physical constrains. The poloidal magnetic flux becomes a linear superposition of independent solutions and its parameters are adjusted with a non-linear fitting algorithm. This method is used to find hydromagnetic equilibria with normal and reversed magnetic shear and defined values of the elongation, triangularity, aspect-ratio, and X-point(s). The resultant toroidal and poloidal beta, the safety factor at the $95\%$ flux surface and the plasma current are in agreement with usual experimental values for high beta discharges and the model can be used locally to describe reversed magnetic shear equilibria.
description: 8 pages, 7 figures, 14 references
Frustrated and Confused: The American Public Rates its Cancer-Related Information-Seeking Experiences
Creators: name: Arora, Neeraj K.
name: Rimer, Barbara K.
name: Viswanath, K.
name: Clayman, Marla L.
name: Hesse, Bradford W.
name: Croyle, Robert T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Ensuring access to high-quality cancer-related information is important for the success of cancer prevention and control efforts.
Transport and Noise of Entangled Electrons
Creators: name: Sukhorukov, Eugene V.
name: Loss, Daniel
name: Burkard, Guido
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a scattering set-up with an entangler and beam splitter where the current noise exhibits bunching behavior for electronic singlet states and antibunching behavior for triplet states. We show that the entanglement of two electrons in the double-dot can be detected in mesoscopic transport measurements. In the cotunneling regime the singlet and triplet states lead to phase-coherent current contributions of opposite signs and to Aharonov-Bohm and Berry phase oscillations in response to magnetic fields. We analyze the Fermi liquid effects in the transport of entangled electrons.
description: 9 pages, Latex, uses lamuphys.sty (included), 1 eps figure embedded with epsf, to appear in Proceedings of the XVI Sitges Conference (Lecture Notes in Physics, Springer)
title: Analysis of the ratio of fractional anisotropy in diffusion tensor magnetic resonance imaging of the foetal brain
Creators: name: Sokurenko, Maria
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Foetal imaging
subject: CNS
subject: Neuroradiology brain
subject: MR
subject: Normal variants

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: DTI and tractography before birth represent important approaches for basic and clinical neuroscience research. Although prenatal ultrasound and conventional T1- and T2-weighted MRI bring crucial information on the brain development of human fetuses...
Transport in semiconductor superlattices: from quantum kinetics to terahertz-photon detectors
Creators: name: Jauho, A. P.
name: Wacker, A.
name: Ignatov, A. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Semiconductor superlattices are interesting for two distinct reasons: the possibility to design their structure (band-width(s),doping, etc.) gives access to a large parameter space where different physical phenomena can be explored. Secondly, many important device applications have been proposed, and then subsequently successfully fabricated. A number of theoretical approaches has been used to describe their current-voltage characteristics, such as miniband conduction, Wannier-Stark hopping, and sequential tunneling. The choice of a transport model has often been dictated by pragmatic considerations without paying much attention to the strict domains of validity of the chosen model. In the first part of this paper we review recent efforts to map out these boundaries, using a first-principles quantum transport theory, which encompasses the standard models as special cases. In the second part, focusing in the mini-band regime, we analyze a superlattice device as an element in an electric circuit, and show that its performance as a THz-photon detector allows significant optimization, with respect to geometric and parasitic effects, and detection frequency. The key physical mechanism enhancing the responsivity is the excitation of hybrid Bloch-plasma oscillations.
description: 22 pages, 10 figures, uses lamuphys.sty (included); to appear in the Proceedings of the XVI Sitges Conference, Statistical and Dynamical Aspects of Mesoscopic Systems (Lecture Notes in Physics, Springer)
Interpolative method for transport properties of quantum dots in the Kondo regime
Creators: name: Yeyati, A. Levy
name: Martin-Rodero, A.
name: Flores, F.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present an interpolative method for describing coherent transport through an interacting quantum dot. The idea of the method is to construct an approximate electron self-energy which becomes exact both in the limits of weak and strong coupling to the leads. The validity of the approximation is first checked for the case of a single (spin-degenerate) dot level. A generalization to the multilevel case is then discussed. We present results both for the density of states and the temperature dependent linear conductance showing the transition from the Kondo to the Coulomb blockade regime.
description: 8 pages, 3 figures, includes lamuphys.sty, submitted to the Proceedings of the XVI Sitges Conference on Statistical Mechanics
Primary Versus Specialty Care Outcomes for Depressed Outpatients Managed with Measurement-Based Care: Results from STAR*D
Creators: name: Thase, Michael E.
name: Rush, A. John
name: Klinkman, Michael
name: Fava, Maurizio
name: Yates, William R.
name: Balasubramani, G.K.
name: Trivedi, Madhukar H.
name: Wisniewski, Stephen R.
name: Nierenberg, Andrew A.
name: Gaynes, Bradley N.
name: McGrath, Patrick J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Whether the acute outcomes of major depressive disorder (MDD) treated in primary (PC) or specialty care (SC) settings are different is unknown.
title: Endovascular Therapy as an Effective Treatment Option for Unstable Acute Pulmonary Embolism – our Local Experience
Creators: name: Ng, Keng Sin
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Embolism / Thrombosis
subject: Thrombolysis
subject: Fluoroscopy
subject: CT-Angiography
subject: Pulmonary vessels
subject: Interventional vascular
subject: Cardiovascular system

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Abbreviations: Pulmonary embolism (PE) Computed Tomography Pulmonary angiography (CTPA) Catheter directed Therapy (CDT) Aims: Recognize radiological and clinical features of unstable pulmonary embolism Educate on various endovascular treatment...
Asking the Right Questions: Views on Genetic Variation Research Among Black and White Research Participants
Creators: name: Blumenthal, Connie
name: Garrett, Joanne
name: Henderson, Gail
name: Corbie-Smith, Giselle
name: Moloney, Mairead
name: Bussey-Jones, Jada
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Genetic variation research (GVR) may raise concerns about misuse of information and discrimination. Seemingly contradictory positive views about GVR have also been reported.
The Ultraviolet Brightest Type Ia Supernova 2011de
Creators: name: Brown, Peter J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present and discuss the UV/optical photometric light curves and absolute magnitudes of the Type Ia supernova (SN) 2011de from the Swift Ultraviolet/Optical Telescope. We find it to be the UV brightest SN Ia yet observed--more than a factor of ten brighter than normal SNe Ia in the mid-ultraviolet. This object is an extreme example of the differences seen in the ultraviolet for objects which do not appear remarkable in the optical. We find that the UV/optical brightness and broad light curves are broadly consistent with additional flux from the shock of the ejecta hitting a red giant companion. SN~2011de is either the first external interaction of a SN Ia discovered in the UV or an extreme example of the intrinsic UV variations in SNe Ia.
description: 6 pages, including 4 figures and 1 table Submitted to ApJ Letters Swift/UVOT photometry available through the Swift Optical/Ultraviolet Supernova Archive (SOUSA) at http://swift.gsfc.nasa.gov/docs/swift/sne/swift_sn.html
Şema Terapisi Perspektifinden Kumar Bağımlılığı ile Dikkat Eksikliği ve Hiperaktivite Bozukluğuna Genel Bakış
Creators: name: DEMİRDÖĞEN, Buket
name: KARAAZİZ, Meryem
Publisher: name: Zenodo
Year: 2024

description: Kumar bağımlılığı, kişilerin kariyer, ailesel ve bireysel yaşam döngüsünde aksamaların olduğu kumar oynayarak bir ekonomik kazanç sağlayabileceğini yönelik olumsuz düşünceyle yaşam kalitesini bozan veya kumara yönelik kontrol kaybının ve meşkuliyetin artış göstermesiyle kumar oynama davranışıyla seyir eden ruhsal bozukluktur. Çocukluk evresinde ortaya çıkan ilerleyen süreçlerde yetişkinlik safhasında da devamlılık gösterebilen dehb dikkati odaklamada yaşanan zorluklar, dürtüsellik ve hiperaktivitenin kriterlerinin görüldüğü nörogelişimsel bir rahatsızlıktır.Kumar Bağımlılığının ve Dikkat Eksikliği ve Hiperaktivite Bozukluğunun şemalar üzerindeki etkisi incelenerek ortaya çıkan sonuçlar daha geniş bakış açısıyla değerlendirilebilir. Literatür taramaları sonucunda kumar bağımlılığı ve erişkin dehb’a yönelik çalışmaların az olduğu ve şemaların bu değişkenler üzerindeki etkisini inceleyen çalışmalar yapılabilir.Bu çalışmada literatürün derlemesi yapılarak şema terapisi bakış açısıyla kumar bağımlılığı ve Dehb’a yönelik genel bir gözden geçirme çalışması yapılmıştır.
title: Efficacy of the digital scattered X-ray correction with air gap technique for imaging foreign bodies
Creators: name: Takeuchi, Kazuhiro
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Foreign bodies
subject: Physics
subject: Computer Applications-General
subject: Computer Applications-Detection, diagnosis
subject: Digital radiography
subject: Computer applications

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The digital scattered X-ray correction (DSC : Virtual Grid Processing ® , Fujifilm) developed as the new software is the technique for obtaining images equivalent to the anti-scatter grid (ASG) images without ASG and is useful for portable...
title: Chadwick, Liverpool and the bomb.
Creators: name: David. King, Charles
Publisher: name: University of Liverpool Repository
Year: 2023

description: The author intends to set out in this thesis Chadwick's scientific and diplomatic contribution to the development of the atomic bombs that ended World War Two. The far-reaching consequences of Chadwick's efforts to establish a nuclear physics research prograrmne, both academic and commercial, in austere post-war Britain are also shown. A brief history of Chadwick's academic career, at Manchester, Cambridge and Liverpool Universities is given, which indicate how his intimate knowledge of atomic and nuclear physics culminated in the building of a state-of-the-art 37" pole diameter cyclotron at Liverpool University. The help that Lawrence and his colleagues generously and freely gave to Chadwick is also acknowledged. The crucial role of the Liverpool cyclotron in determining the necessary nuclear fission cross-section measurements needed to establish the feasibility of an atomic bomb, is also discussed. Chadwick's precise and penetrating insight of the bomb's feasibility, was presented in the final Maud Report that was sent, prior to the bombing of Pearl Harbour, to the U.S.A. It was this Report that convinced the Americans that an atomic bomb was a feasible and obtainable objective and started, as a matter of urgency, American fission bomb research. A brief history of fission and the events surrounding its discovery is also presented, as is a comparative discussion on the German and Japanese progress in atomic bomb research in World War Two. It would not have been possible to give specific details of many of the above events without primary source material to substantiate them The author has located a large number of previously un-published letters, documents and photographs - only some of which have been included - but all of which are being incorporated into a Chadwick Archive at Liverpool University.
Driven Tunneling: Chaos and Decoherence
Creators: name: Hanggi, Peter
name: Kohler, Sigmund
name: Dittrich, Thomas
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Chaotic tunneling in a driven double-well system is investigated in absence as well as in the presence of dissipation. As the constitutive mechanism of chaos-assisted tunneling, we focus on the dynamics in the vicinity of three-level crossings in the quasienergy spectrum. The coherent quantum dynamics near the crossing is described satisfactorily by a three-state model. It fails, however, for the corresponding dissipative dynamics, because incoherent transitions due to the interaction with the environment indirectly couple the three states in the crossing to the remaining quasienergy states. The asymptotic state of the driven dissipative quantum dynamics partially resembles the, possibly strange, attractor of the corresponding damped driven classical dynamics, but also exhibits characteristic quantum effects.
description: 32 pages, 35 figures, lamuphys.sty
title: Determination optimal scan parameters of high resolution three-dimensional T2 weighted image using two-dimensional radio frequency excitation for prostate imaging: a phantom study
Creators: name: Yamasaki, Tatsuya
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Cancer
subject: Artifacts
subject: Imaging sequences
subject: MR
subject: Pelvis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Prostate Imaging and Reporting and Data System version 2 (PI-RADS v2) was presented in 2015 [1]. PI-RADS v2 showed that diffusion weighted image (DWI), T 2 WI, and dynamic contrast enhanced T 1 WI are indispensable for the multi-parametric magnetic...
Spintronic Spin Accumulation and Thermodynamics
Creators: name: MacDonald, A. H.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The spin degree of freedom can play an essential role in determining the electrical transport properties of spin-polarized electron systems in metals or semiconductors. In this article, I address the dependence of spin-subsystem chemical potentials on accumulated spin-densities. I discuss both approaches which can be used to measure this fundamental thermodynamic quantity and the microscopic physics which determines its value in several different systems.
description: 14 pages, 4 figures. Based on lecture given at the XVI Sitges Conference, June 1999. Proceedings to be published by Springer-Verlag
The δ subunit and NTPase HelD institute a two-pronged mechanism for RNA polymerase recycling
Creators: name: Pei, Hao-Hong
name: Hilal, Tarek
name: Chen, Zhuo A.
name: Huang, Yong-Heng
name: Gao, Yuan
name: Said, Nelly
name: Loll, Bernhard
name: Rappsilber, Juri
name: Belogurov, Georgiy A.
name: Artsimovitch, Irina
name: Wahl, Markus C.
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie
subject: cryoelectron microscopy
subject: enzyme mechanisms
subject: transcription
subject: transcription factors

description: Cellular RNA polymerases (RNAPs) can become trapped on DNA or RNA, threatening genome stability and limiting free enzyme pools, but how RNAP recycling into active states is achieved remains elusive. In Bacillus subtilis, the RNAP δ subunit and NTPase HelD have been implicated in RNAP recycling. We structurally analyzed Bacillus subtilis RNAP-δ-HelD complexes. HelD has two long arms: a Gre cleavage factor-like coiled-coil inserts deep into the RNAP secondary channel, dismantling the active site and displacing RNA, while a unique helical protrusion inserts into the main channel, prying the β and β′ subunits apart and, aided by δ, dislodging DNA. RNAP is recycled when, after releasing trapped nucleic acids, HelD dissociates from the enzyme in an ATP-dependent manner. HelD abundance during slow growth and a dimeric (RNAP-δ-HelD)2 structure that resembles hibernating eukaryotic RNAP I suggest that HelD might also modulate active enzyme pools in response to cellular cues. The bacterial helicase-like transcription factor HelD interacts with the RNA polymerase (RNAP) and together with the RNAP δ subunit enhances RNAP cycling. Here, the authors present the cryo-EM structures of the monomeric and dimeric Bacillus subtilis RNAP-δ-HelD complexes and suggest a model for HelD/δ-mediated RNAP recycling and putative hibernation.
The detection of Gravitational Waves
Creators: name: Lobo, J. Alberto
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This chapter is concerned with the question: how do gravitational waves (GWs) interact with their detectors? It is intended to be a theory review of the fundamental concepts involved in interferometric and acoustic (Weber bar) GW antennas. In particular, the type of signal the GW deposits in the detector in each case will be assessed, as well as its intensity and deconvolution. Brief reference will also be made to detector sensitivity characterisation, including very summary data on current state of the art GW detectors.
description: 33 pages, 12 figures, LaTeX2e, Springer style files --included. For Proceedings of the ERE-2001 Conference (Madrid, September 2001)
Camponotus (Myrmoturba) maculatus , F., subsp, subsp. nov.
Creators: name: Crawley, W. C.
Publisher: name: Zenodo
Year: 1920
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Camponotus
Camponotus maculatus

description: Camponotus (Myrmoturba) maculatus, F., subsp. evansi, subsp. nov. ☿ major (☿ media). L. 8.5-9.0mm. Width of head 2.8mm. Castaneous; scale darkest, head slightly darker than thorax, legs palest; gaster shining black, borders of segments rimmed with castaneous yellow. Whole insect robust, legs short. Head slightly broader than long, widest just behind the eyes, narrowing abruptly in front of eyes, which are well behind the middle of sides of head. Occipital border widely and shallowly emarginate. Mandibles 7 toothed. Clypeus carinate on its posterior two-thirds only, anterior border straight. Scapes extend just beyond occipital border. Eyes large, flat. Thorax in profile short, regularly arched as far as the meso-epinotal suture whence the base of epinotum slopes down in a more or less straight line to meet the declivity, making a very obtuse angle with the latter, which is quite straight and somewhat shorter than the base. Tibiæ somewhat flattened. Seale narrow at apex, convex anteriorly and straight behind. Gaster oval, hardly larger than the head. Mandibles shining, with coarse punctures. Head dull, with a reticulate ground sculpture pitted with irregular somewhat elongate punctures, most abundant on the clypeus, cheeks, and between the frontal carinæ. Vertex and occiput with only scattered shallow punctures. Thorax with a finer reticulate ground sculpture, and more shining than the head; scale, legs and scapes with a similar reticulate sculpture. Gaster shining, with a superficial transverse reticulation. Declivity of epinotum shining, microscopically transversely reticulate. Head, thorax and gaster with rather long scattered yellowish hairs, whitish on gaster; no pilosity on scapes or legs. Pubescence nil. ☿ minor. Differs only in size, slightly smaller head proportionately, and greater length of scape. In dead palm trunk, N.E. of Baghdad, 1919 (Evans).
description: Published as part of Crawley, W. C., 1920, Ants from Mesopotamia and north-west Persia (concluded), pp. 177-179 in Entomologists Record and Journal of Variation 32 on page 2, DOI: 10.5281/zenodo.15001
Flux Limiter Methods in 3D Numerical Relativity
Creators: name: Bona, C.
name: Palenzuela, C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: New numerical methods have been applied in relativity to obtain a numerical evolution of Einstein equations much more robust and stable. Starting from 3+1 formalism and with the evolution equations written as a FOFCH (first-order flux conservative hyperbolic) system, advanced numerical methods from CFD (Computational Fluid Dynamics) have been successfully applied. A flux limiter mechanism has been implemented in order to deal with steep gradients like the ones usually associated with black hole spacetimes. As a test bed, the method has been applied to 3D metrics describing propagation of nonlinear gauge waves. Results are compared with the ones obtained with standard methods, showing a great increase in both robustness and stability of the numerical algorithm.
description: 9 pages, 5 figures. to be published in the Procedings of ERE01
Weak energy condition violation and superluminal travel
Creators: name: Lobo, Francisco
name: Crawford, Paulo
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent solutions to the Einstein Field Equations involving negative energy densities, i.e., matter violating the weak-energy-condition, have been obtained, namely traversable wormholes, the Alcubierre warp drive and the Krasnikov tube. These solutions are related to superluminal travel, although locally the speed of light is not surpassed. It is difficult to define faster-than-light travel in generic space-times, and one can construct metrics which apparently allow superluminal travel, but are in fact flat Minkowski space-times. Therefore, to avoid these difficulties it is important to provide an appropriate definition of superluminal travel.
description: 15 pages, 3 figures, LaTeX2e, Springer style files -included. Contribution to the Proceedings of the Spanish Relativity Meeting-2001 (Madrid, September 2001)
Physicians’ Decisions About Continuing or Stopping Colon Cancer Screening in the Elderly: A Qualitative Study
Creators: name: Lewis, Carmen L.
name: Pignone, Michael P.
name: Griffith, Jennifer
name: Golin, Carol
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Experts suggest an individualized approach to colon cancer screening to take into account variation in older adults’ life expectancies and potential to benefit from screening. However, little is known about how physicians make decisions about colon cancer screening in adults age 75 and older.
The Effect of Patient Race and Blood Pressure Control on Patient-Physician Communication
Creators: name: Carson, Kathryn A.
name: Cooper, Lisa A.
name: Roter, Debra
name: Miller, Edgar R.
name: Cené, Crystal W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Racial disparities in hypertension control contribute to higher rates of cardiovascular mortality among blacks. Patient-physician communication quality is associated with better health outcomes, including blood pressure (BP) control. Both race/ethnicity and BP control may adversely affect communication.
title: Evaluation of radiation exposure during hepatobiliary interventional procedures: a single centre survey.
Creators: name: Gerasia, Roberta
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Dosimetric comparison
subject: Radiation safety
subject: Dosimetry
subject: Fluoroscopy
subject: Catheter venography
subject: Catheter arteriography
subject: Radioprotection / Radiation dose
subject: Paediatric
subject: Liver

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Pediatric patients have a higher average risk of developing cancer compared with adults receiving the same dose. Children are more sensitive to radiation than adults and have a longer life after exposure during which they can manifest the...
Dynamics of the radiative envelope of rapidly rotating stars: Effects of spin-down driven by mass loss
Creators: name: Rieutord, Michel
name: Beth, Arnaud
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: (abridged) This paper aims at deciphering the dynamics of the envelope of a rotating star when some angular momentum loss due to mass loss is present. We especially wish to know when the spin-down flow forced by the mass loss supersedes the baroclinic flows that pervade the radiative envelope of rotating stars. We consider a Boussinesq fluid enclosed in a rigid sphere whose flows are forced both by the baroclinic torque, the spin-down of an outer layer, and an outward mass flux. The spin-down forcing is idealized in two ways: either by a rigid layer that imposes its spinning down velocity at some interface or by a turbulent layer that imposes a stress at this same interface to the interior of the star. In the case where the layer is rigid and imposes its velocity, we find that, as the mass-loss rate increases, the flow inside the star shows two transitions: the meridional circulation associated with baroclinic flows is first replaced by its spin-down counterpart, while at much stronger mass-loss rates the baroclinic differential rotation is superseded by the spin-down differential rotation. In fact, we find three wind regimes: weak (or no wind), moderate, and strong. In the first case, the flow in the radiative envelope is of baroclinic origin. In the moderate case, the circulation results from the spin-down while the differential rotation may either be of baroclinic or of spin-down origin, depending on the coupling between mass and angular momentum losses. For fast rotating stars, our model says that the moderate wind regime starts when mass loss is higher than ~1e-11 Msun/yr. In the strong wind case, the flow in the radiative envelope is mainly driven by angular momentum advection. This latter transition depends on the mass and the rotation rate of the star, being around 1e-8 Msun/yr for a 3 Msun ZAMS star rotating at 200 km/s according to our model.
description: 13 pages, 9 figures, to appear in Astronomy and Astrophysics
Numerical relativity with the conformal field equations
Creators: name: Husa, Sascha
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: I discuss the conformal approach to the numerical simulation of radiating isolated systems in general relativity. The method is based on conformal compactification and a reformulation of the Einstein equations in terms of rescaled variables, the so-called ``conformal field equations'' developed by Friedrich. These equations allow to include ``infinity'' on a finite grid, solving regular equations, whose solutions give rise to solutions of the Einstein equations of (vacuum) general relativity. The conformal approach promises certain advantages, in particular with respect to the treatment of radiation extraction and boundary conditions. I will discuss the essential features of the analytical approach to the problem, previous work on the problem - in particular a code for simulations in 3+1 dimensions, some new results, open problems and strategies for future work.
description: 34 pages, submitted to the Proceedings of the 2001 Spanish Relativity meeting, eds. L. Fernandez and L. Gonzalez, to be published by Springer, Lecture Notes in Physics series
title: Diffusion-weighted images and dynamic contrast-enhanced MRI in the differentiation of ovarian tumor: should be this two modalities include in the routines examination of ovarian tumor?
Creators: name: Olimov, Bekhruz
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Genital / Reproductive system female
subject: Oncology
subject: Pelvis
subject: MR
subject: Ultrasound
subject: MR-Diffusion/Perfusion
subject: Imaging sequences
subject: Contrast agent-intravenous
subject: Staging
subject: Cancer
subject: Image registration
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Ovarian cancer is currently one of the most common forms of the cancer in gynecology - for about 3.6 % of all cases, with the mortality for about 4,3 %. In Europe it is the leading cause of death among gynecologic malignancies, ranking fifth in...
Sosyal Kaygı Bozukluğu ve Şema Terapisi Üzerine Sistematik Derleme
Creators: name: BOZKURT, Sena Nur
name: KARAAZİZ, Meryem
Publisher: name: Zenodo
Year: 2024

description: Bu derleme çalışmasının amacı SAB yaşayan kişilerde Şema Terapinin kullanım şeklini incelemektir. Yapılan bu çalışmada sistematik derleme yöntemi kullanılmış olup saha çalışması ya da herhangi bir ölçek kullanılmamıştır. Google Akademik veri tabanında 2000-2023 yılları arasında Türkçe ve İngilizce dilinde yapılmış olan bağlantılı anahtar kelimeler kullanarak özet ya da tam metnine ulaşılabilen randomize kontrollü çalışmalar değerlendirilmiştir. Bu çalışma Şubat, 2024 ve Mayıs, 2024 olmak üzere iki aşamada gerçekleşmiştir. Yapılan litaretür taraması neticesinde 6 çalışma üzerinde çalışılmıştır. Yorumlanan 6 randomize kontrollü çalışmalardır. 6 çalışmanın sonucunda da SAB hastlarında şema terapinin olumlu yönde etki ettiği görülmüştür. Bu derlemenin bulguları şema terapinin tedavi etmede olumlu etki gösterdiğini ve terapi sonucunda olumlu bir terapi yöntem olduğu görülmüştür.
A Strategy for Improving Health Disparities Education in Medicine
Creators: name: Wiley Cené, Crystal
name: Brown, Arleen F.
name: Horowitz, Carol R.
name: Fernández, Leonor
name: Glick, Susan B.
name: Lypson, Monica L.
name: Wilkerson, LuAnn
name: Jacobs, Elizabeth A.
name: Ross, Paula T.
name: Bussey-Jones, Jada
name: Blackman, Dionne
name: Peek, Monica E.
name: Fernández, Alicia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: A health disparities curriculum that uses evidence-based knowledge rooted in pedagogic theory is needed to educate health care providers to meet the needs of an increasingly diverse U.S. population.
Are You Ready? How Health Professionals Can Comprehensively Conceptualize Readiness for Change
Creators: name: Weiner, Bryan J.
name: Helfrich, Christian D.
name: Holt, Daniel T.
name: Hall, Carmen G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: One important factor influencing the successful implementation of system-wide change is initial readiness. Readiness is defined as the degree to which those involved are individually and collectively primed, motivated, and technically capable of executing the change. We present a conceptual framework that highlights three broad areas to be considered if health-care professionals are to comprehensively evaluate readiness that includes psychological factors (i.e., characteristics of those being asked to change), structural factors (i.e., circumstances under which the change is occurring) as well as the level of analysis (i.e., individual and organizational levels). We also describe more specific dimensions within each of these broad categories that have both empirical and theoretical support, presenting several valid and reliable survey instruments that measure key dimensions of readiness quantitatively.
A high-frequency electron paramagnetic resonance spectrometer for multi-dimensional, -frequency and -phase pulsed measurements
Creators: name: Cho, Franklin H.
name: Stepanov, Viktor
name: Takahashi, Susumu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We describe instrumentation for a high-frequency electron paramagnetic resonance (EPR) and pulsed electron-electron double resonance (PELDOR) spectroscopy. The instrumentation is operated in the frequency range of 107$-$120 GHz and 215$-$240 GHz and in the magnetic field range of 0$-$12.1 Tesla. The spectrometer consisting of a high-frequency high-power solid-state source, a quasioptical system, a phase-sensitive detection system, a cryogenic-free superconducting magnet and a $^4$He cryostat enables multi-frequency continuous-wave EPR spectroscopy as well as pulsed EPR measurements with a few hundred nanosecond pulses. Here we discuss the details of the design and the pulsed EPR sensitivity of the instrumentation. We also present performance of the instrumentation in unique experiments including PELDOR spectroscopy to probe correlations in an insulating electronic spin system and application of dynamical decoupling techniques to extend spin coherence of electron spins in an insulating solid-state system.
description: 21 pages including 7 figures
Community-based Teaching about Health Disparities: Combining Education, Scholarship, and Community Service
Creators: name: Peek, Monica E.
name: Jacobs, Elizabeth
name: Horowitz, Carol R.
name: Cené, Crystal W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: The Institute of Medicine recommends that clinicians receive training to better understand and address disparities. While disparities in health status are primarily due to inequities in social determinants of health, current curricula largely focus on how to teach about disparities within the health care setting. Learners may more fully understand and appreciate how social contextual factors contribute to disparities through instruction about disparities in community settings. Community-based teaching about health disparities may be advantageous for learners, medical institutions, and participating communities. This manuscript aims to guide medical educators in teaching students and residents about health disparities through community-based activities, including service learning and research.
Diabetes and Drug-Associated Hyperkalemia: Effect of Potassium Monitoring
Creators: name: Xu, Stanley
name: Smith, David H.
name: Raebel, Marsha A.
name: Cheetham, Craig
name: Saylor, Gwyn
name: Roblin, Douglas W.
name: Blanchette, Christopher M.
name: Ross, Colleen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Renin-angiotensin-aldosterone system (RAAS) inhibitors are associated with hyperkalemia, but there is little evidence demonstrating patients who receive potassium monitoring have a lower rate of hyperkalemia.
Synchronization of Limit Cycle Oscillators by Telegraph Noise
Creators: name: Goldobin, Denis S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the influence of telegraph noise on synchrony of limit cycle oscillators. Adopting the phase description for these oscillators, we derive the explicit expression for the Lyapunov exponent. We show that either for weak noise or frequent switching the Lyapunov exponent is negative, and the phase model gives adequate analytical results. In some systems moderate noise can desynchronize oscillations, and we demonstrate this for the Van der Pol--Duffing system.
description: 6 pages, 2 figures,in Unsolved Problems of Noise and Fluctuations: UPoN 2005, edited by L. Reggiani et al., AIP Conf. Proc. No. 800(1) (AIP, Melville, NY, 2005), pp. 394-399
Judicial Dialogue between National Constitutional Judges and EU Judges in the Context of the Single Supervisory Mechanism: Opportunity for a Reverse Preliminary Ruling?
Creators: name: Ottaviano, Ilaria
Publisher: name: Universita' degli Studi di Salerno
Year: 2022
Subjects: Reverse preliminary ruling
Single Supervisory Mechanism (SSM)
Common procedures
Effective judicial protection
Sincere cooperation

description: The article analyzes the consequences of the recognized exclusive jurisdiction of the Court of Justice of the European Union in some common procedures carried out within the Single Supervisory Mechanism and the limits of the incidental control of the Court of Justice on the legality of the preparatory acts adopted by the National Competent Authorities. Particular attention is paid to a speculative analysis regarding a reverse preliminary reference, from the EU judge to the national one, as a possible corrective of the breach of the right to an effective judicial protection, analyzing the possible balancing between EU values, national identity and national and supranational autonomy.
title: Koncepcja przymusu administracyjnego Profesora Tadeusza Bigi
Creators: name: Sobieralski, Krzysztof
Publisher: name: E-Wydawnictwo. Prawnicza i Ekonomiczna Biblioteka Cyfrowa. Wydział Prawa, Administracji i Ekonomii Uniwersytetu Wrocławskiego
Year: 2020

description: Wypracowana przez T. Bigę koncepcja przymusu administracyjnego opiera się na założeniu, że jest on stałym, immanentnym elementem władztwa administracyjnego. T. Bigo zwraca uwagę, że przymus administracyjny (państwowy) występuje w dwóch postaciach: egzekucji i kary. Zachowanie się sprzeczne z nakazami prawnymi powoduje uruchomienie sankcji prawnych i to albo w formie egzekucji, albo też w formie kary. Egzekucja jest zatem formą przymusu państwowego, której istotą i celem nie jest represja. Egzekucja polega na przymusowym wykonaniu nakazów prawnych, czyli realizowaniu przymusowym sytuacji przewidzianych przez prawo.
Black holes: A physical route to the Kerr metric
Creators: name: Meinel, R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: As a consequence of Birkhoff's theorem, the exterior gravitational field of a spherically symmetric star or black hole is always given by the Schwarzschild metric. In contrast, the exterior gravitational field of a rotating (axisymmetric) star differs, in general, from the Kerr metric, which describes a stationary, rotating black hole. In this paper, I discuss the possibility of a quasi-stationary transition from rotating equilibrium configurations of normal matter to rotating black holes.
description: 14 pages, 1 table, 4 figures, accepted for publication in Annalen der Physik (Leipzig)