cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pipelined information flow in molecular mechanical circuits leads to increased error and irreversibility
Creators: name: Seet, Ian
name: Ouldridge, Thomas E.
name: Doye, Jonathan P. K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Pipelining is a design technique for logical circuits that allows for higher throughput than circuits in which multiple computations are fed through the system one after the other. It allows for much faster computation than architectures in which inputs must pass through every layer of the circuit before the next computation can begin (phased chaining). We explore the hypothesis that these advantages may be offset by a higher error rate, logical irreversibility and greater thermodynamic costs by simulating pipelined molecular mechanical circuits using an explicit physical model. We observe the emergent logical irreversibility, and see that the simultaneous action of multiple components indeed leads to a higher error rate than in phase-chained circuits. The thermodynamic costs of operating the gates are much larger than in equivalent phase-chained circuits, and these costs do not appear to tend to zero in the limit of slow gate operation. Redesigning the gates to eliminate errors and artificially enforcing logical reversibility reduces the thermodynamic costs and recovers thermodynamically reversible behaviour in the limit of slow gate operation. The breakdown of logical reversibility and accuracy are both associated with a breakdown of the digital behaviour of the device, likely contributing to thermodynamic costs that are large relative to the scale of the information being processed.
Physics Opportunities with the FCC-hh Injectors
Creators: name: Goddard, B.
name: Isidori, G.
name: Teubert, F.
name: Bai, M.
name: Ball, A.
name: Batell, B.
name: Bowcock, T.
name: Cavoto, G.
name: Ceccucci, A.
name: Chrzaszcz, M.
name: Golutvin, A.
name: Herr, W.
name: Jowett, J.
name: Moulson, M.
name: Nakada, T.
name: Rojo, J.
name: Semertzidis, Y.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this chapter we explore a few examples of physics opportunities using the existing chain of accelerators at CERN, including potential upgrades. In this context the LHC ring is also considered as a part of the injector system. The objective is to find examples that constitute sensitive probes of New Physics that ideally cannot be done elsewhere or can be done significantly better at theCERN accelerator complex. Some of these physics opportunities may require a more flexible injector complex with additional functionality than that just needed to inject protons into the FCC-hh at the right energy, intensity and bunch structure. Therefore it is timely to discuss these options concurrently with the conceptual design of the FCC-hh injector system.
description: 13 pages, chapter 5 in Physics at the FCC-hh, a 100 TeV pp collider
Breakdown of QCD coherence ?
Creators: name: Kyrieleis, A.
name: Forshaw, J. R.
name: Seymour, M. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reconsider the calculation of a non-global QCD observable and find the possible breakdown of QCD coherence. This breakdown arises as a result of wide angle soft gluon emission developing a sensitivity to emission at small angles and it leads to the appearance of super-leading logarithms. We use the `gaps between jets' cross-section as a concrete example and illustrate that the new logarithms are intimately connected with the presence of Coulomb gluon contributions. Numerical estimates of their potential phenomenological significance are presented.
description: 7 pages, 3 figures; proceedings of Workshop on Diffraction in High-Energy Physics - DIFFRACTION 2006, Sep. 5-10 2006, Adamantas, Milos island, Greece
Equilibrium, Stability and Orbital Evolution of Close Binary Systems
Creators: name: Lai, D.
name: Rasio, F. A.
name: Shapiro, S. L.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new analytic study of the equilibrium and stability properties of close binary systems containing polytropic components. Our method is based on the use of ellipsoidal trial functions in an energy variational principle. We consider both synchronized and nonsynchronized systems, constructing the compressible generalizations of the classical Darwin and Darwin-Riemann configurations. Our method can be applied to a wide variety of binary models where the stellar masses, radii, spins, entropies, and polytropic indices are all allowed to vary over wide ranges and independently for each component. We find that both secular and dynamical instabilities can develop before a Roche limit or contact is reached along a sequence of models with decreasing binary separation. High incompressibility always makes a given binary system more susceptible to these instabilities, but the dependence on the mass ratio is more complicated. As simple applications, we construct models of double degenerate systems and of low-mass main-sequence-star binaries. We also discuss the orbital evolution of close binary systems under the combined influence of fluid viscosity and secular angular momentum losses from processes like gravitational radiation. We show that the existence of global fluid instabilities can have a profound effect on the terminal evolution of coalescing binaries. The validity of our analytic solutions is examined by means of detailed comparisons with the results of recent numerical fluid calculations in three dimensions.
description: 37 pages, plain TeX, postscript figures and tables in separate uufile, IAS AST 93/44
Dracocephalum peregrinum Linnaeus 1756
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
Lamiales
Lamiaceae
Dracocephalum
Dracocephalum peregrinum

description: Dracocephalum peregrinum Linnaeus, Centuria II Plantarum: 20. 1756.
"Habitat in Sibiria." RCN: 4317.
 Lectotype (Budantzev in Jarvis & al. in Taxon 50: 511. 2001): Herb. Linn. No. 746.5 (LINN).
 Current name:  Dracocephalum peregrinum  L. (Lamiaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 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 488, DOI: 10.5281/zenodo.291971
Cellulose-based film modified by succinic anhydride for the controlled release of domperidone
Creators: name: Chengmei Shi
name: Furong Tao
name: Yuezhi Cui
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Succinic anhydride (SAD) modified microcrystalline cellulose (MCC) films was prepared and used for the controlled release of the drug domperidone (dom). The morphology and chemical structure of the modified materials were characterized by SEM, FTIR, XRD and TG/DSC techniques. The physical properties, such as water uptake and swelling, light barrier properties, mechanical testing, in vitro degradation behavior, have been investigated. Results showed that the modified cellulose membranes exhibited good anti-UV properties, higher water uptake values, improved mechanical capacity and anti-biodegradability. In addition, the modified MCC films (MS) as the drug carrier indicated the controlled release of domperidone and the release mechanism was proposed using Korsmeyer–Peppas equation at pH 7.4. The developed drug delivery system possessed the profound significance in improving pharmacodynamics and bioavailability of drugs.
Dracocephalum pinnatum Linnaeus 1753
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
Lamiales
Lamiaceae
Dracocephalum
Dracocephalum pinnatum

description: Dracocephalum pinnatum Linnaeus, Species Plantarum 2: 594. 1753.
"Habitat in Jerkatsch. Steller, D. Gmelin." RCN: 4316.
 Lectotype (Budantzev in Jarvis & al. in Taxon 50: 511. 2001): Steller, Herb. Linn. No. 746.4 (LINN).
 Current name:  Dracocephalum pinnatum  L. (Lamiaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 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 488, DOI: 10.5281/zenodo.291971
Drug targeted virtual screening and molecular dynamics of LipU protein of Mycobacterium tuberculosis and Mycobacterium leprae
Creators: name: Gurkamaljit Kaur
name: Pandey, Bharati
name: Arbind Kumar
name: Garewal, Naina
name: Abhinav Grover
name: Jagdeep Kaur
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The lipolytic protein LipU was conserved in mycobacterium sp. including M. tuberculosis (MTB LipU) and M. leprae (MLP LipU). The MTB LipU was identified in extracellular fraction and was reported to be essential for the survival of mycobacterium. Therefore to address the problem of drug resistance in pathogen, LipU was selected as a drug target and the viability of finding out some FDA approved drugs as LipU inhibitors in both the cases was explored. Three-dimensional (3D) model structures of MTB LipU and MLP LipU were generated and stabilized through molecular dynamics (MD). FDA approved drugs were screened against these proteins. The result showed that the top-scoring compounds for MTB LipU were Diosmin, Acarbose and Ouabain with the Glide XP score of −12.8, −11.9 and −11.7 kcal/mol, respectively, whereas for MLP LipU protein, Digoxin (−9.2 kcal/mol), Indinavir (−8.2 kcal/mol) and Travoprost (−8.2 kcal/mol) showed highest affinity. These drugs remained bound in the active site pocket of MTB LipU and MLP LipU structure and interaction grew stronger after dynamics. RMSD, RMSF and Rg were found to be persistent throughout the simulation period. Hydrogen bonds along with large number of hydrophobic interactions stabilized the complex structures. Binding free energies obtained through Prime/MM-GBSA were found in the significant range from −63.85 kcal/mol to −34.57 kcal/mol for MTB LipU and −71.33 kcal/mol to −23.91 kcal/mol for MLP LipU. The report suggested high probability of these drugs to demolish the LipU activity and could be probable drug candidates to combat TB and leprosy disease.
Drug targeted virtual screening and molecular dynamics of LipU protein of Mycobacterium tuberculosis and Mycobacterium leprae
Creators: name: Gurkamaljit Kaur
name: Pandey, Bharati
name: Arbind Grover
name: Garewal, Naina
name: Abhinav Grover
name: Jagdeep Kaur
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The lipolytic protein LipU was conserved in mycobacterium sp. including M. tuberculosis (MTB LipU) and M. leprae (MLP LipU). The MTB LipU was identified in extracellular fraction and was reported to be essential for the survival of mycobacterium. Therefore to address the problem of drug resistance in pathogen, LipU was selected as a drug target and the viability of finding out some FDA approved drugs as LipU inhibitors in both the cases was explored. Three-dimensional (3D) model structures of MTB LipU and MLP LipU were generated and stabilized through molecular dynamics (MD). FDA approved drugs were screened against these proteins. The result showed that the top-scoring compounds for MTB LipU were Diosmin, Acarbose and Ouabain with the Glide XP score of −12.8, −11.9 and −11.7 kcal/mol, respectively, whereas for MLP LipU protein, Digoxin (−9.2 kcal/mol), Indinavir (−8.2 kcal/mol) and Travoprost (−8.2 kcal/mol) showed highest affinity. These drugs remained bound in the active site pocket of MTB LipU and MLP LipU structure and interaction grew stronger after dynamics. RMSD, RMSF and Rg were found to be persistent throughout the simulation period. Hydrogen bonds along with large number of hydrophobic interactions stabilized the complex structures. Binding free energies obtained through Prime/MM-GBSA were found in the significant range from −63.85 kcal/mol to −34.57 kcal/mol for MTB LipU and −71.33 kcal/mol to −23.91 kcal/mol for MLP LipU. The report suggested high probability of these drugs to demolish the LipU activity and could be probable drug candidates to combat TB and leprosy disease.
Ronnie Reed, Spy Runner
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: My father, Ronnie Reed, was in MI5 from 1942 to 1976. My book, "Spy Runner," is about his career, published by The History Press in 2020.I filmed a 45-minute interview with him in 1994, the only time he talked about his career. The film has never been shown. He died in 1995.During the war, my father was in charge of 'Agent Zigzag'. Zigzag claimed he had damaged a Mosquito factory in North London. Hitler was so pleased with the results that he awarded the Iron Cross to Zigzag, who then gave it to my father. My brother and I have now lent it to an exhibition at the Imperial War Museum.After the war, Ronnie worked for MI5, tracking Russian agents (i.e., traitors) like Philby, Burgess, and Maclean.
Dracocephalum ruyschiana Linnaeus 1753
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
Lamiales
Lamiaceae
Dracocephalum
Dracocephalum ruyschiana

description: Dracocephalum ruyschiana Linnaeus, Species Plantarum 2: 595. 1753.
"Habitat in Sibiria, Suecia." RCN: 4318.
 Lectotype (Budantzev in Jarvis & al. in Taxon 50: 511. 2001): Herb. Linn. No. 746.7 (LINN).
 Current name:  Dracocephalum ruyschiana  L. (Lamiaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 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 488, DOI: 10.5281/zenodo.291971
Why quarkonium hybrid coupling to two S-wave heavy-light mesons is not suppressed
Creators: name: Bruschini, R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the couplings of quarkonium hybrids to heavy-light meson pairs in the Born-Oppenheimer approximation for QCD. The lowest hybrid multiplets consist of bound states of the $Π_u$ and $Σ_u^-$ potentials. We find that the $Σ_u^-$ potential can couple to pairs of $S$-wave mesons through string breaking, while the $Π_u$ potential cannot. From this observation, we derive model-independent selection rules that contradict previous expectations that quarkonium hybrids are forbidden to decay into pairs of $S$-wave mesons. These Born-Oppenheimer selection rules are consistent with the partial decay widths of the lowest charmonium hybrid with exotic quantum numbers $J^{PC}=1^{-+}$ recently calculated in lattice QCD.
description: 4 pages, 1 table; v2: simplified text and equations, added discussion of branching ratios, typos corrected, various minor edits
Search for millicharged particles in reactor neutrino experiments: a probe of the PVLAS anomaly
Creators: name: Gninenko, S. N.
name: Krasnikov, N. V.
name: Rubbia, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has been recently suggested that the vacuum magnetic dichroism observed by the PVLAS experiment could be explained by the pair production of a new light, m ~0.1 eV, millicharged, q ~ 3 10^{-6} e, fermions. In addition, it has been pointed out that millicharged particles with q > 10^{-9} e appear naturally in models based on the string theory. We show that low energy reactor neutrino experiments provide a sensitive probe of millicharged particles. Considering, as an example, recent results of the TEXONO experiment searching for neutrino magnetic moment, a new upper bound q < 10^{-5} e for the mass region m < 1 keV is derived. These results enhance motivations for a more sensitive search for such particles in near future experiments. Furthemore, a direct experimental limit on the electric charge of the electron antineutrino q < 3.7 10^{-12} e is obtained.
description: 4 pages, version to appear in PRD
Cryptanalyzing an image encryption algorithm based on autoblocking and electrocardiography
Creators: name: Li, Chengqing
name: Lin, Dongdong
name: Lü, Jinhu
name: Hao, Feng
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: 94A60

description: This paper analyzes the security of an image encryption algorithm proposed by Ye and Huang [\textit{IEEE MultiMedia}, vol. 23, pp. 64-71, 2016]. The Ye-Huang algorithm uses electrocardiography (ECG) signals to generate the initial key for a chaotic system and applies an autoblocking method to divide a plain image into blocks of certain sizes suitable for subsequent encryption. The designers claimed that the proposed algorithm is "strong and flexible enough for practical applications". In this paper, we perform a thorough analysis of their algorithm from the view point of modern cryptography. We find it is vulnerable to the known plaintext attack: based on one pair of a known plain-image and its corresponding cipher-image, an adversary is able to derive a mask image, which can be used as an equivalent secret key to successfully decrypt other cipher-images encrypted under the same key with a non-negligible probability of 1/256. Using this as a typical counterexample, we summarize security defects in the design of the Ye-Huang algorithm. The lessons are generally applicable to many other image encryption schemes.
description: 8 pages, 6 figures
The Wavefunction of the Collapsing Bose-Einstein Condensate
Creators: name: Theodorakis, Stavros
name: Hadjigeorgiou, Andreas
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Bose-Einstein condensates with tunable interatomic interactions have been studied intensely in recent experiments. The investigation of the collapse of a condensate following a sudden change in the nature of the interaction from repulsive to attractive has led to the observation of a remnant condensate that did not undergo further collapse. We suggest that this high-density remnant is in fact the absolute minimum of the energy, if the attractive atomic interactions are nonlocal, and is therefore inherently stable. We show that a variational trial function consisting of a superposition of two distinct gaussians is an accurate representation of the wavefunction of the ground state of the conventional local Gross-Pitaevskii field equation for an attractive condensate and gives correctly the points of emergence of instability. We then use such a superposition of two gaussians as a variational trial function in order to calculate the minima of the energy when it includes a nonlocal interaction term. We use experimental data in order to study the long range of the nonlocal interaction, showing that they agree very well with a dimensionally derived expression for this range.
description: 11 pages, 12 figures
Berechnung des zweiten osmotischen Virialkoeffizienten verdünnter wässriger Lösungen mittels molekulardynamischer Simulation
Creators: name: Reiter, Elias
Publisher: name: Universität Rostock
Year: 2019
Subjects: subject: 540 Chemistry & allied sciences

description: Die Arbeit stellt eine Methode zur Berechnung des zweiten osmotischen Virialkoeffizienten vor und wendet diese auf wässrige Lösungen von Methan und verschiedenen weiteren hydrophoben Teilchen sowie auf die Lösungen dreier biologisch relevanter Moleküle (Methanol, Harnstoff und Trimethylaminoxid) für einen weiten Temperaturbereich an. Die Struktur der Wassermoleküle um die gelösten Teilchen wird näher betrachtet, um Lösungsmitteleffekte zu untersuchen. Ebenso wird für Methan das Temperatur- und Druckverhalten gemeinsam mit dem Vergleich verschiedener Wassermodelle dargestellt.
Nepeta sibirica Linnaeus 1753
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
Lamiales
Lamiaceae
Nepeta
Nepeta sibirica

description: Dracocephalum sibiricum (Linnaeus) Linnaeus, Systema Naturae, ed. 10, 2: 1104. 1759.
["Habitat in Sibiria."] Sp. Pl. 2: 572 (1753). RCN: 4321.
 Basionym: Nepeta sibirica L. (1753).
 Lectotype (Hedge in Jarvis & al. in Taxon 50: 511. 2001): [icon] "Cataria montana, folio Veronicae pratensis" in Buxbaum, Pl. Minus Cognit. Cent. 3: 27, t. 50, f. 1. 1729.
 Current name:  Nepeta sibirica  L. (Lamiaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 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 488, DOI: 10.5281/zenodo.291971
Dynamics of Conductive/Cooling Fronts: Cloud Implosion and Thermal Solitons
Creators: name: Ferrara, Andrea
name: Shchekinov, Yuri
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the evolution of interfaces among phases of the interstellar medium with different temperature. It is found that, for some initial conditions, the dynamical effects related to conductive fronts are very important even if radiation losses, which tend to decelerate the front propagation, are taken into account. We have also explored the consequences of the inclusion of shear and bulk viscosity, and we have allowed for saturation of the kinetic effects. Numerical simulations of a cloud immersed in a hot medium have been performed; depending on the ratio of conductive to dynamical time, the density is increased by a huge factor and the cloud may become optically thick. Clouds that are highly compressed are able to stop the evaporation process even if their initial size is smaller than the Field length. In addition to the numerical approach, the time dependent evolution has been studied also analytically. Simple techniques have been applied to the problem in order to study the transition stages to a stationary state. The global properties of the solution for static and steady fronts and useful relations among the various physical variables are derived; a mechanical analogy is often used to clarify the physics of the results. It is demonstrated that a class of soliton-like solutions are admitted by the hydrodynamical equations appropriate to describe the conduction/cooling fronts (in the inviscid case) that do not require a heat flux at the boundaries. Some astrophysical consequences are indicated along with some possible applications to the structure of the Galactic ISM and to extragalactic objects.
description: 29 pages, Plain TeX, 14 figures, Space Telescope Preprint Series-No. 758
Dracocephalum thymiflorum Linnaeus 1753
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
Lamiales
Lamiaceae
Dracocephalum
Dracocephalum thymiflorum

description: Dracocephalum thymiflorum Linnaeus, Species Plantarum 2: 596. 1753.
"Habitat in Sibiria." RCN: 4327.
 Lectotype (Wijnands, Bot. Commelins: 115. 1983): Herb. Linn. No. 746.17 (LINN).
 Current name:  Dracocephalum thymiflorum  L. (Lamiaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 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 488, DOI: 10.5281/zenodo.291971
An Integrated-Photonics Optical-Frequency Synthesizer
Creators: name: Spencer, Daryl T.
name: Drake, Tara
name: Briles, Travis C.
name: Stone, Jordan
name: Sinclair, Laura C.
name: Fredrick, Connor
name: Li, Qing
name: Westly, Daron
name: Ilic, B. Robert
name: Bluestone, Aaron
name: Volet, Nicolas
name: Komljenovic, Tin
name: Chang, Lin
name: Lee, Seung Hoon
name: Oh, Dong Yoon
name: Suh, Myoung-Gyun
name: Yang, Ki Youl
name: Pfeiffer, Martin H. P.
name: Kippenberg, Tobias J.
name: Norberg, Erik
name: Theogarajan, Luke
name: Vahala, Kerry
name: Newbury, Nathan R.
name: Srinivasan, Kartik
name: Bowers, John E.
name: Diddams, Scott A.
name: Papp, Scott B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Integrated-photonics microchips now enable a range of advanced functionalities for high-coherence applications such as data transmission, highly optimized physical sensors, and harnessing quantum states, but with cost, efficiency, and portability much beyond tabletop experiments. Through high-volume semiconductor processing built around advanced materials there exists an opportunity for integrated devices to impact applications cutting across disciplines of basic science and technology. Here we show how to synthesize the absolute frequency of a lightwave signal, using integrated photonics to implement lasers, system interconnects, and nonlinear frequency comb generation. The laser frequency output of our synthesizer is programmed by a microwave clock across 4 THz near 1550 nm with 1 Hz resolution and traceability to the SI second. This is accomplished with a heterogeneously integrated III/V-Si tunable laser, which is guided by dual dissipative-Kerr-soliton frequency combs fabricated on silicon chips. Through out-of-loop measurements of the phase-coherent, microwave-to-optical link, we verify that the fractional-frequency instability of the integrated photonics synthesizer matches the $7.0*10^{-13}$ reference-clock instability for a 1 second acquisition, and constrain any synthesis error to $7.7*10^{-15}$ while stepping the synthesizer across the telecommunication C band. Any application of an optical frequency source would be enabled by the precision optical synthesis presented here. Building on the ubiquitous capability in the microwave domain, our results demonstrate a first path to synthesis with integrated photonics, leveraging low-cost, low-power, and compact features that will be critical for its widespread use.
description: 10 pages, 6 figures
Angular dependence of spin-orbit torque in monolayer $Fe_3GeTe_2$
Creators: name: Xue, Fei
name: Stiles, Mark D.
name: Haney, Paul M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In ferromagnetic systems lacking inversion symmetry, an applied electric field can control the ferromagnetic order parameters through the spin-orbit torque. The prototypical example is a bilayer heterostructure composed of a ferromagnet and a heavy metal that acts as a spin current source. In addition to such bilayers, spin-orbit coupling can mediate spin-orbit torques in ferromagnets that lack bulk inversion symmetry. A recently discovered example is the two-dimensional monolayer ferromagnet $Fe_3GeTe_2$. In this work, we use first-principles calculations to study the spin-orbit torque and ensuing magnetic dynamics in this material. By expanding the torque versus magnetization direction as a series of vector spherical harmonics, we find that higher order terms (up to $\ell=4$) are significant and play important roles in the magnetic dynamics. They give rise to deterministic, magnetic field-free electrical switching of perpendicular magnetization.
description: 8 pages (3 pages appendix), 7 figures
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00569
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: comptes

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00569, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Physostegia virginiana Benth.
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
Lamiales
Lamiaceae
Physostegia
Physostegia virginiana

description: Dracocephalum virginianum Linnaeus, Species Plantarum 2: 594. 1753.
"Habitat in America septentrionali." RCN: 4314.
 Lectotype (Cantino in Contr. Gray Herb. 211: 86. 1982): Herb. Linn. No. 746.1 (LINN).
 Current name:  Physostegia virginiana  (L.) Benth. (Lamiaceae).
 Note: Although Epling (in J. Bot. 67: 9. 1929) indicated Herb. Linn. No. 746.1 (LINN) as the standard specimen, this is not equivalent to a type statement (see Jarvis & al. in Taxon 50: 508. 2001).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 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 488, DOI: 10.5281/zenodo.291971
Tom Wilson's Wooden Horse Violin
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: My father, P/O Tom Wilson, was shot down in May 1943 and interned in the East Compound of Stalag Luft III, Sagan, in what is now Poland. It was from this compound that the Wooden Horse escape was made in October 1943. Tom Wilson was one of the vaulters supporting the escape and also served as a lookout, playing his violin while the sand from the tunnel was being disposed of in the camp barbershop. When Stalag Luft III was forcibly evacuated in January 1945, Tom took his violin with him, first in cattle trucks, passing through Dresden the day before it was attacked, and then on foot in forced marches in southern Germany. When it became too difficult to carry on with the violin, Tom left it with a German family whom he trusted because of the Beethoven music open on their piano. Three years later, having studied German and Russian at university, Tom took part in the first Anglo-German student exchange, finding time to recover his violin from the same family during his second visit to Germany. He also met my mother during this trip, so the violin has particular significance to our family, despite being pretty worthless from a playing point of view. My son, Tom's grandson, now has the violin displayed on the wall of his home. In the 1950 British film, *The Wooden Horse*, an actor can be seen portraying my father playing the violin in the barbershop.
Sidney William Gidley's Registration Card for National Service
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: He was called to register in December 1942 by the Allocation Officer. Although he passed as Grade 1, he spent the war in a reserved occupation, based at Southall Gas Works in London in the By-Products Department, and was responsible for tar spraying on the roads.
Top and Bottom Squarks Decays under Cosmological Bounds
Creators: name: Selbuz, L.
name: Aydin, Z. Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the fermionic decays of top squarks tilde t_{1,2} and bottom squarks tilde b_{1,2}$ in the Minimal Supersymmetric Standard Model with complex parameters M_1, mu, A_t and A_b . In the analysis we particularly take into account the cosmological bounds imposed by WMAP data. We plot the CP phase dependences of stop and sbottom decay widths.
description: 1 text(9 pages)and 8 figures(6 pages). Total 15 pages. Accepted to be published in Phys.Lett. B
Titanium dioxide nanoparticle exposure alters metabolic homeostasis in a cell culture model of the intestinal epithelium and Drosophila melanogaster
Creators: name: Richter, Jonathan W.
name: Shull, Gabriella M.
name: Fountain, John H.
name: Zhongyuan Guo
name: Musselman, Laura P.
name: Fiumera, Anthony C.
name: Mahler, Gretchen J.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Nanosized titanium dioxide (TiO2) is a common additive in food and cosmetic products. The goal of this study was to investigate if TiO2 nanoparticles affect intestinal epithelial tissues, normal intestinal function, or metabolic homeostasis using in vitro and in vivo methods. An in vitro model of intestinal epithelial tissue was created by seeding co-cultures of Caco-2 and HT29-MTX cells on a Transwell permeable support. These experiments were repeated with monolayers that had been cultured with the beneficial commensal bacteria Lactobacillus rhamnosus GG (L. rhamnosus). Glucose uptake and transport in the presence of TiO2 nanoparticles was assessed using fluorescent glucose analog 2-(N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino)-2-deoxyglucose (2-NBDG). When the cell monolayers were exposed to physiologically relevant doses of TiO2, a statistically significant reduction in glucose transport was observed. These differences in glucose absorption were eliminated in the presence of beneficial bacteria. The decrease in glucose absorption was caused by damage to intestinal microvilli, which decreased the surface area available for absorption. Damage to microvilli was ameliorated in the presence of L. rhamnosus. Complimentary studies in Drosophila melanogaster showed that TiO2 ingestion resulted in decreased body size and glucose content. The results suggest that TiO2 nanoparticles alter glucose transport across the intestinal epithelium, and that TiO2 nanoparticle ingestion may have physiological consequences.
Lysichiton camtschatcensis Schott 1857
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Alismatales
Araceae
Lysichiton
Lysichiton camtschatcensis

description: Dracontium camtschatcense Linnaeus, Species Plantarum 2: 968. 1753.
"Habitat in Sibiria." RCN: 7012.
Type not designated.
Original material: none traced.
 Current name:  Lysichiton camtschatcensis  (L.) Schott (Araceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), pp. 474-489 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 488, DOI: 10.5281/zenodo.291971
On the Distance Determination and Ionization of the High Velocity Clouds
Creators: name: Ferrara, Andrea
name: Field, George B.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a study of the ionization and thermal structure of neutral hydrogen clouds located in the Galactic halo, immersed in the extragalactic background radiation field, and supposed to be in pressure equilibrium with the surrounding (presumably) hot medium. The problem is solved numerically, but an useful analytical approximation has been derived as well. We discuss the two main parameters of the problem, \ie the radiation field and the halo pressure, in the framework of the current models for the halo/disk interaction. We find a well defined relation between a critical column density at which the cloud starts to develop a cold central core with the cloud linear size. Making use of this relation, we suggest a straightforward method to derive the distance to the cloud. We discuss the possible sources of error in this determination and it is found that the method is particularly suitable for those clouds which are subsonic with respect to the surrounding medium, while for the supersonic ones, the method can only give a lower limit to the distance. The H$α$ emission from the partially ionized edge of the cloud is calculated and compared with the available observations; this measure is a powerful indicator of the possible presence of a shock in the cloud.
description: 19 pages, Plain TeX, 7 figures, Space Telescope Preprint Series
Supersymmetry Breaking by Fluxes
Creators: name: Sethi, Savdeep
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Type II string theory and M-theory admit flux configurations that break supersymmetry below the Kaluza-Klein scale. These backgrounds play a central role in most models of the string landscape. I argue that the behavior of such backgrounds at weak coupling is generically a rolling solution, not a static space-time. Quantum corrections to the space-time potential are computed around this classical time-dependent background. This is particularly important for non-perturbative corrections. This change in perspective offers an explanation for why there appear to be many effective field theory models that seemingly evade the known no-go theorems forbidding de Sitter space-times. This has interesting implications for type IIB string landscape models.
description: 31 pages; LaTeX; references added; minor changes and more references added
Non-chiral one-dimensional states propagating inside AB/BA domain walls in bilayer graphene
Creators: name: Enaldiev, V. V.
name: Moulsdale, C.
name: Geim, A. K.
name: Fal'ko, V. I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Boundaries between structural twins of bilayer graphene (so-called AB/BA domain walls) are often discussed in terms of the formation of topologically protected valley-polarised chiral states. Here, we show that, depending on the width of the AB/BA boundary, the latter can also support non-chiral one-dimensional (1D) states that are confined to the domain wall at low energies and take the form of quasi-bound states at higher energies, where the 1D bands cross into the two-dimensional spectral continuum. We present the results of modeling of electronic properties of AB/BA domain walls with and without magnetic field as a function of their width and interlayer bias.
Equivalence Principle and Partition of Angular Momenta in the Nucleon
Creators: name: Teryaev, O. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The manifestation of equivalence principle (EP) in spin-gravity interactions, resulting in the nullification of the corresponding analog of Anomalous Magnetic moment is explored. Its tests in the experiments with atoms and cold neutrons are discussed. The validity of EP separately for quarks and gluons in the nucleon resulting in exact equipartition of momentum and total angular momentum is conjectured. The important role of relocalization (Belinfante) invariance in these and other aspects of nucleon spin structure is stressed.
description: 4 pages, contribution to SPIN 2006, Kyoto, October 2-7
My wartime childhood (Arthur 'Pip' Piper)
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: Self-published memoir of life in wartime, but also extended to his national service. Stories for wartime only are included.
Multicomponent electron-hole superfluidity and the BCS-BEC crossover in double bilayer graphene
Creators: name: Conti, S.
name: Perali, A.
name: Peeters, F. M.
name: Neilson, D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superfluidity in coupled electron-hole sheets of bilayer graphene is predicted here to be multicomponent because of the conduction and valence bands. We investigate the superfluid crossover properties as functions of the tunable carrier densities and the tunable energy band gap $E_g$. For small band gaps there is a significant boost in the two superfluid gaps, but the interaction driven excitations from the valence to the conduction band can weaken the superfluidity, even blocking the system from entering the BEC regime at low densities. At a given larger density, a band gap $E_g\sim 40$-$60$ meV can carry the system into the strong-pairing multiband BCS-BEC crossover regime, the optimal range for realization of high-$T_c$ superfluidity.
description: 5 pages, 4 figures
String Scale Gauge Coupling Unification with Vector-like Exotics and Non-Canonical U(1)_Y Normalization
Creators: name: Barger, V.
name: Jiang, Jing
name: Langacker, Paul
name: Li, Tianjun
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use a new approach to study string scale gauge coupling unification systematically, allowing both the possibility of non-canonical U(1)_Y normalization and the existence of vector-like particles whose quantum numbers are the same as those of the Standard Model (SM) fermions and their Hermitian conjugates and the SM adjoint particles. We first give all the independent sets (Yi) of particles that can be employed to achieve SU(3)_C and SU(2)_L string scale gauge coupling unification and calculate their masses. Second, for a non-canonical U(1)_Y normalization, we obtain string scale SU(3)_C x SU(2)_L x U(1)_Y gauge coupling unification by choosing suitable U(1)_Y normalizations for each of the Yi sets. Alternatively, for the canonical U(1)_Y normalization, we achieve string scale gauge coupling unification by considering suitable combinations of the Yi sets or by introducing additional independent sets (Zi), that do not affect the SU(3)_C x SU(2)_L unification at tree level, and then choosing suitable combinations, one from the Yi sets and one from the Zi sets. We also briefly discuss string scale gauge coupling unification in models with higher Kac-Moody levels for SU(2)_L or SU(3)_C.
description: 18 pages, 6 figures
Mechanical Spectroscopy of Parametric Amplification in a High-Q Membrane Microresonator
Creators: name: Wu, Shuhui
name: Sheng, Jiteng
name: Zhang, Xiaotian
name: Wu, Yuelong
name: Wu, Haibin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We develop a stoichiometric SiN membrane-based optoelectromechanical system, in which the properties of the mechanical resonator can be dynamically controlled by the piezoelectric actuation. The mode splitting is observed in the mechanical response spectra of a phase-sensitive degenerate parametric amplifier. In addition, the quality factor Q of the membrane oscillator in this process is signicantly enhanced by more than two orders of magnitude due to the coherent amplication, reaching a Q factor of ~ 3*10^8 and a f*Q product of ~ 8*10^14 at room temperature. The thermomechanical noise squeezing close to -3 dB limitation is also achieved. This system integrates the electrical, optical and mechanical degrees of freedom without compromising the exceptional material properties of SiN membranes, and can be a useful platform for studying cavity optoelectromechanics.
A new construction of rational electromagnetic knots
Creators: name: Lechtenfeld, Olaf
name: Zhilin, Gleb
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We set up a correspondence between solutions of the Yang-Mills equations on ${\mathbb R}\times S^3$ and in Minkowski spacetime via de Sitter space. Some known Abelian and non-Abelian exact solutions are rederived. For the Maxwell case we present a straightforward algorithm to generate an infinite number of explicit solutions, with fields and potentials in Minkowski coordinates given by rational functions of increasing complexity. We illustrate our method with a nontrivial example.
description: 1+8 pages, 4 figures; v2: map between S^3-cylinder and Minkowski space clarified, published version