cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Viscosity and self-diffusion of supercooled and stretched water from molecular dynamics simulations
Creators: name: de Hijes, Pablo Montero
name: Sanz, Eduardo
name: Joly, Laurent
name: Valeriani, Chantal
name: Caupin, Frédéric
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Among the numerous anomalies of water, the acceleration of dynamics under pressure is particularly puzzling. Whereas the diffusivity anomaly observed in experiments has been reproduced in several computer studies, the parallel viscosity anomaly has received less attention. Here we simulate viscosity and self-diffusion coefficient of the TIP4P/2005 water model over a broad temperature and pressure range. We reproduce the experimental behavior, and find additional anomalies at negative pressure. The anomalous effect of pressure on dynamic properties becomes more pronounced upon cooling, reaching two orders of magnitude for viscosity at 220 K. We analyze our results with a dynamic extension of a thermodynamic two-state model, an approach which has proved successful in describing experimental data. Water is regarded as a mixture of interconverting species with contrasting dynamic behaviors, one being strong (Arrhenius), and the other fragile (non-Arrhenius). The dynamic parameters of the two-state models are remarkably close between experiment and simulations. The larger pressure range accessible to simulations suggests a modification of the dynamic two-state model, which in turn also improves the agreement with experimental data. Furthermore, our simulations demonstrate the decoupling between viscosity $η$ and self-diffusion coefficient $D$ as a function of temperature $T$. The Stokes-Einstein relation, which predicts a constant $D η/T$, is violated when $T$ is lowered, in connection with the Widom line defined by an equal fraction of the two interconverting species. These results provide a unifying picture of thermodynamics and dynamics in water, and call for experiments at negative pressure.
description: 13 pages, 11 figures, 4 tables; results for one simulated state point replaced by results from a longer simulation, corresponding minor changes made to figures and tables, minor clarifications
Additional file 1 of Consumption of flavonoids and risk of hormone-related cancers: a systematic review and meta-analysis of observational studies
Creators: name: Liu, Fubin
name: Peng, Yu
name: Qiao, Yating
name: Huang, Yubei
name: Song, Fengju
name: Zhang, Ming
name: Song, Fangfang
Publisher: name: figshare
Year: 2022
Subjects: subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file1.
Investigation of the role of pharmacokinetics and the development of novel anti-obesity agents
Creators: name: Christakis, Ioannis
Publisher: name: Imperial College London
Year: 2015

description: Oxyntomodulin is a gut hormone that promotes satiety by exhibiting an anorectic effect through the action at the GLP-1 receptor while at the same time it has been suggested that it is able to increase energy expenditure through the glucagon receptor, albeit with a less potency than native peptides. This dual mode of action makes it an ideal candidate for an anti-obesity medication. However, oxyntomodulin possesses an inadequate pharmacokinetic profile with a very short half-life and duration of action. These observations promoted the idea that oxyntomodulin could be used as the starting point for developing an anti-obesity drug agent through modifications of its primary amino acid structure. The exact knowledge of the pharmacokinetic properties of peptides (half-life, metabolic clearance rate, volume of distribution) is crucial in drug development as it allows investigating the effect of amino acid changes in the presence of the peptide in the plasma and correlates this with the exerted biological effect. The first aim of this thesis was to develop a reliable in vivo animal model that could be used to measure the pharmacokinetic properties of anti-obesity drug candidates based on oxyntomodulin. Results have shown that the proposed model is robust enough to be used for this scope. The second aim was to develop an analogue, based on oxyntomodulin, with a higher anorectic effect and a prolonged duration of action with the aim of developing an anti-obesity medication that could be used as a therapeutic agent in humans given once-weekly. Point substitutions in the primary amino acid structure of oxyntomodulin (positions 16, 23, 24, 29 and 30) were done in order to enhance the anorectic effect of oxyntomodulin and 26 analogues were developed and tested in order to investigate the effect of these substitutions. The pharmacokinetic properties of these analogues were measured with the help of the in vivo animal model. Other substitutions in the C terminal of the analogues were made in order to allow the formation of a subcutaneous depot when given in a zinc-containing slow-release formulation with the aim to prolong the presence of the peptide in the circulation. Data presented in this thesis have identified OXM analogue X26 presents a 8.3– and 45-fold higher potency at the GLP-1R and GCGR respectively when compared to native OXM. When administered in a zinc containing formula, X26 is present in the circulation 7 days post-injection. Furthermore, it has demonstrated a significantly longer half-life than OXM (21.3 vs. 12 min). Its ability to inhibit food intake and reduce body weight has been shown in rodent species; mice and rats. Analogue X26 is a novel and valuable pharmaceutical approach for the treatment of obesity.
Reminiscences of Harry James Carman, circa 1960
Publisher: name: Columbia University
Year: 2021
Subjects: Educators
Higher education and state
Education--New York (State)

description: Board of Higher Education, New York City, 1938-61: practices and policy, budgets, relationships with city and state administrations, problems of tenure, day and evening sessions; Russell case; Rapp-Coudert Committee and Strayer committee; impressions of Mayors Fiorello La Guardia, William O'Dwyer, and Robert F. Wagner
Locality Bound for Dissipative Quantum Transport
Creators: name: Han, Xizhi
name: Hartnoll, Sean A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We prove an upper bound on the diffusivity of a general local and translation invariant quantum Markovian spin system: $D \leq D_0 + \left(α\, v_\text{LR} τ+ β\, ξ\right) v_\text{C}$. Here $v_\text{LR}$ is the Lieb-Robinson velocity, $v_\text{C}$ is a velocity defined by the current operator, $τ$ is the decoherence time, $ξ$ is the range of interactions, $D_0$ is a microscopically determined diffusivity and $α$ and $β$ are precisely defined dimensionless coefficients. The bound constrains quantum transport by quantities that can either be obtained from the microscopic interactions ($D_0, v_\text{LR}, v_\text{C},ξ$) or else determined from independent local non-transport measurements ($τ,α,β$). We illustrate the general result with the case of a spin half XXZ chain with on-site dephasing. Our result generalizes the Lieb-Robinson bound to constrain the sub-ballistic diffusion of conserved densities in a dissipative setting.
description: 5 pages, 1 figure, revised for PRL
THE MEANING OF THE MAIZE REVOLUTION IN SUB-SAHARAN AFRICA: SEEKING GUIDANCE FROM PAST IMPACTS
Creators: name: Gilbert, Elon
name: Gilbert, Elon
Publisher: name: Unknown
Year: 1995
Subjects: Crop Production/Industries
Research Methods/ Statistical Methods

description: This paper reports on an assessment of the impact of maize research in Sub- Saharan Africa (SSA), based on case studies of Senegal, Nigeria, Zaire, Kenya and Malawi. Its principal finding is that maize production, much of it on smallscale farms, has virtually doubled in the last 30 years, rising at on average over 2.5% per annum, of which 1.8% is accounted for by area expansion and 0.7% by yield increases. It argues that without research, the negative influence of worsening pest regimes and decreasing fertility would have implied declining, not constant yields for maize. Part of the impact of research is therefore obscured. It is further obscured by the fact that numerous impacts important to African fanners other than increases in maize output have taken place: increases in per hectare productivity have, for instance, allowed higher returns to labour (in many areas a crucially limiting factor) to be obtained, sometimes accompanied by reductions in maize area or switching of maize production among different land types. Important reductions in risk have also occurred where eg early maturing varieties have reduced the "hungry period", or where yields have become more stable in the face of unfavourable weather or pest problems. In some cases, maize has provided a stable source of capital which farmers have accumulated to invest in more profitable non-farm activities such as trade. These findings, again part of the observed impact of technological change, are difficult to quantify, but have important methodological implications for future research impact assessments.
Supplementary document for Photoluminesence enhancement at high generation rate induced by exciton localization - 5209556.pdf
Creators: name: Zheng, Ting
name: Niu, Xianghong
name: Zhao, Hui
name: Wang, Jinlan
name: zhao, weiwei
name: Lu, Junpeng
name: Ni, Zhenhua
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: DOS calculation, Raman and TRPL
Frustrated structural instability in superconducting quasi-one-dimensional K$_2$Cr$_3$As$_3$
Creators: name: Taddei, Keith M.
name: Xing, Guangzong
name: Sun, Jifeng
name: Fu, Yuhao
name: Li, Yuwei
name: Zheng, Qiang
name: Sefat, Athena S.
name: Singh, David J.
name: de la Cruz, Clarina
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present neutron total scattering and density functional theory studies on quasi-one-dimensional superconducting K$_2$Cr$_3$As$_3$ revealing a frustrated structural instability. Our first principles calculations find a significant phonon instability which, under energy minimization, corresponds to a frustrated orthorhombic distortion. In diffraction studies we find large and temperature independent atomic displacement parameters which pair distribution analyses confirms and shows as resulting from highly localized orthorhombic distortions of the CrAs sublattice and coupled K displacements. These results suggest a far more complex phase diagram than previously assumed for this unusual superconductor with the likelihood of subtle interplays of structure, electron-phonon and magnetic interactions.
description: 6 pages, 4 figures, supplemental materials attached
Supplementary tables from Measuring rewilding progress
Creators: name: Torres, Aurora
name: Néstor Fernández
name: Sophus Zu Ermgassen
name: Helmer, Wouter
name: Revilla, Eloy
name: Deli Saavedra
name: Perino, Andrea
name: Mimet, Anne
name: Rey-Benayas, José M.
name: Selva, Nuria
name: Schepers, Frans
name: Jens-Christian Svenning
name: Pereira, Henrique M.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Table S1: Practitioners guide to measuring and evaluating each indicator within the rewilding score framework; Table S2: Summary of the evidence base for proposed restoration actions. EF=Effectiveness of restoration actions at achieving rewilding objectives (restoring trophic processes, landscape connectivity and composition, natural disturbance regimes and/or biodiversity). EF=0: No evidence or unknown effectiveness of restoration action; EF=1: Likely to be ineffective; EF=2: Trade-off between benefit and harm; EF=3: Likely to be beneficial; EF=4: Beneficial.
Sertularia falcata Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Sertulariidae
Sertularia
Sertularia falcata

description: Sertularia falcata [spec. nov.]
S. denticulis secundis tubulosis, calycibus ovatis, ramis pinnatis alternis.
Ellis corall. 12. n. 11. t. 7. f. A.
Raj. angl. 3. p. 36. n. 16. Pluken. alm. 119. t. 47. f. 12. Corallina muscosa pennata, ramulis & capillamentis falcata.
Moris. hist. 3. p. 650. s. 15. t. 9. f. 2. Muscus pennatus, ramulis & capillamentis falcatis.
Habitat in Oceano.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 810, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Heated nuclear matter, condensation phenomena and the hadronic equation of state
Creators: name: Chase, K. C.
name: Mekjian, A. Z.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The thermodynamic properties of heated nuclear matter are explored using an exactly solvable canonical ensemble model. This model reduces to the results of an ideal Fermi gas at low temperatures. At higher temperatures, the fragmentation of the nuclear matter into clusters of nucleons leads to features that resemble a Bose gas. Some parallels of this model with the phenomena of Bose condensation and with percolation phenomena are discussed. A simple expression for the hadronic equation of state is obtained from the model.
description: 12 pages, revtex, 1 ps file appended (figure 1)
Upper airways microbiota profiling in a case/control study between wheezing and healthy children from the tropics of Ecuador
Creators: name: Cardenas-Aldaz, Paul
Publisher: name: Imperial College London
Year: 2014

description: Background: The relationship between living in rural areas and the acquisition of protective environmental factors against the development of asthma and atopy gave rise to the hygiene hypothesis. Between the environmental factors attributed to asthma, particular airways microbiota patterns have been encountered in adult asthmatics using molecular independent techniques (Hilty et al., 2010) and in children using conventional culture methods (Bisgaard et al., 2007). Here a retrospective time series study has been performed using samples from infants at different ages to study the microbiome variations in a population with very low antibiotic use history and no corticosteroid usage. Methods: Pyrosequencing of amplicons of the bacterial 16S rRNA gene was performed from oropharyngeal samples from 134 infants with episodic wheezing versus 200 healthy infants (total of 334 infants examined) sampled at different ages (7, 12 and 24 months). Bioinformatic analyses were conducted using QIIME 1.7 software and Phyloseq package on R. Additionally a new culture-independent pyrosequencing approach using the map gene was successfully developed to enable discrimination of streptococci at species level. Results: Significant abundance differences between infants with wheezing history and healthy controls were found for the Fusobacteria, Proteobacteria and Actinobacteria phyla. At genera level a significant increase in potential pathogenic bacteria (Neisseriacea, Haemophilus, Staphylococcus) was found in wheezers whilst a higher prevalence of Veillonella spp. was seen in controls. In addition, using map gene pyrosequencing, Streptococcus salivarious was found to be statistically significantly related with wheezing syndrome whilst Streptococcus mitis was more prevalent in controls. When age was considered differences were found in the microbiota displayed as species numbers increased (alpha diversity). Conclusions: The respiratory microbiota is different at phyla, genera and Operational Taxonomic Unit levels when comparing between wheezing and healthy children. A progressive more complex respiratory microbial community develops with age.
Weight Thresholding on Complex Networks
Creators: name: Yan, Xiaoran
name: Jeub, Lucas G. S.
name: Flammini, Alessandro
name: Radicchi, Filippo
name: Fortunato, Santo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Weight thresholding is a simple technique that aims at reducing the number of edges in weighted networks that are otherwise too dense for the application of standard graph theoretical methods. We show that the group structure of real weighted networks is very robust under weight thresholding, as it is maintained even when most of the edges are removed. This appears to be related to the correlation between topology and weight that characterizes real networks. On the other hand, the behavior of other properties is generally system dependent.
description: To appear in Physical Review E
Reminiscences of Harvey Littleton 1986
Publisher: name: Columbia University
Year: 2019
Subjects: Glassworkers
Pottery
Glass blowing and working

description: Family background; University of Michigan, 1939, 1947; drafted 1942: cryptographer for Signal Intelligence; graduate study, Cranbrook Academy; teaching ceramics, University of Wisconsin Art Department from 1951; development of work with glass from 1957; impressions of contemporary craftspeople.
Annihilation of tor\_p(G\_S^ab) for real abelian extensions
Creators: name: Gras, Georges
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Preprint of a paper to appear in "Communications in Advanced Mathematical Sciences". Let K be a real abelian extension of Q. Let p be a prime number, S the set of p-places of K and G\_K,S the Galois group of the maximal S-ramified pro-p-extension of K (i.e., unramified outside p and infinity). We revisit the problem of annihilation of the p-torsion group T\_K:=tor\_Z\_p(G\_K,S^ab) initiated by us and Oriat then systematized in our paper on the construction of p-adic L-functions in which we obtained a canonical ideal annihilator of T\_K in full generality (1978--1981). Afterwards (1992--2014) some annihilators, using cyclotomic units, were proposed by Solomon, Belliard--Nguyen Quang Do, Nguyen Quang Do--Nicolas, All, Belliard--Martin.In this text, we improve our original papers and show that, in general, the Solomon elements are not optimal and/or partly degenerated. We obtain, whatever K and p, an universal non-degenerated annihilator in terms of p-adic logarithms of cyclotomic numbers related to L\_p-functions at s=1 of its primitive characters of K (Theorem 9.4). Some computations are given with PARI programs; the case p=2 is analyzed and illustrated in degrees 2, 3, 4 to test a conjecture.
description: Analyse (by means of PARI programs) of the annihilations of "real classes" given by the Solomon elements and a new annihilator. Communications in Advanced Mathematical Sciences, Emrah Evren Kara, In press
Strangeness in Hadronic Stellar Matter
Creators: name: Knorren, R.
name: Prakash, M.
name: Ellis, P. J.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We examine the presence of strangeness-bearing components, hyperons and kaons, in dense neutron star matter. Calculations are performed using relativistic mean field models, in which both the baryon-baryon and kaon-baryon interactions are mediated by meson exchange. Results of kaon condensation are found to be qualitatively similar to previous work with chiral models, if compatibility of the kaon optical potentials is required. The presence of strangeness, be it in the form of hyperons or kaons, implies a reduction in the maximum mass and a relatively large number of protons, sufficient to allow rapid cooling to take place. The need to improve upon the poorly-known couplings of the strange particles, which determine the composition and structure of neutron stars, is stressed. We also discuss generic problems with effective masses in mean field theories.
description: 36 pages, revtex, figures by fax/mail from authors
Additional file 1 of Ultrasound-driven piezoelectric current activates spinal cord neurocircuits and restores locomotion in rats with spinal cord injury
Creators: name: Li, Shuai
name: Alam, Monzurul
name: Ahmed, Rakib Uddin
name: Zhong, Hui
name: Wang, Xiao-Yun
name: Ng, Serena
name: Zheng, Yong-Ping
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Biological Sciences not elsewhere classified

description: Additional file 1: Supplementary Table 1. Center frequencies of the piezoelectric ceramics. Supplementary Figure 1. Hydrophone (Onda HNP-1000, ONDA Corporation, United States) setup for ultrasound intensity measurements in a water tank.
Sertularia pinnata Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Sertulariidae
Sertularia
Sertularia pinnata

description: Sertularia pinnata [spec. nov.]
S. denticulis obsoletis, calycibus ovalibus, caule simplici pennato lanceolato.
Ellis corall. 19. n. 16. t. 11. f. A. Corallina setacea instar arundinis geniculata, capillamentis singulis unicuique geniculo alternatim dispositis.
Habitat in Oceano.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 813, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
title:  Cooperative e beni comuni
Creators: name: Di Sisto , Monica
name: Troisi  , Riccardo
Publisher: name: RomaTrE-Press
Year: 2020

description: Il capitolo ripercorre la storia dei beni comuni, fornendo un contesto giuridico, sociale ed economico rilevante. In questo capitolo le cooperative sono analizzate come aggregatore sociale, soprattutto nelle loro forme più innovative, diventando così un veicolo per la gestione condivisa dei beni comuni. Il capitolo si basa quindi su alcune storie cooperative che hanno al centro il nuovo mutualismo e l’amministrazione collettiva di tali beni. È un percorso che ci porta dalla teoria alla pratica della gestione dei beni comuni.
description: Cooperative bene comune
Eulerian variational formulations and momentum conservation laws for kinetic plasma systems
Creators: name: Sugama, H.
name: Nunami, M.
name: Satake, S.
name: Watanabe, T. -H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The Eulerian variational principle for the Vlasov-Poisson-Ampère system of equations in a general coordinate system is presented. The invariance of the action integral under an arbitrary spatial coordinate transformation is used to obtain the momentum conservation law and the symmetric pressure in a more direct way than using the translational and rotational symmetries of the system. Next, the Eulerian variational principle is given for the collisionless drift kinetic equation, where particles' phase-space trajectories in given electromagnetic fields are described by Littlejohn's guiding center equations~[R. G. Littlejohn, J. Plasma Phys.\ {\bf 29}, 111 (1983)]. Then, it is shown that, in comparison with the conventional moment method, the invariance under a general spatial coordinate transformation yields a more convenient way to obtain the momentum balance as a three-dimensional vector equation in which the symmetric pressure tensor, the Lorentz force, and the magnetization current are properly expressed. Furthermore, the Eulerian formulation is presented for the extended drift kinetic system, for which, in addition to the drift kinetic equations for the distribution functions of all particle species, the quasineutrality condition and Ampère's law to determine the self-consistent electromagnetic fields are given. Again, the momentum conservation law for the extended system is derived from the invariance under the general spatial coordinate transformation. Besides, the momentum balances are investigated for the cases where the collision and/or external source terms are added into the Vlasov and drift kinetic equations.
Toward High-Precision Measures of Large-Scale Structure
Creators: name: Vogeley, Michael S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I review some results of estimation of the power spectrum of density fluctuations from galaxy redshift surveys and discuss advances that may be possible with the Sloan Digital Sky Survey. I then examine the realities of power spectrum estimation in the presence of Galactic extinction, photometric errors, galaxy evolution, clustering evolution, and uncertainty about the background cosmology.
description: 24 pages, including 11 postscript figures. Uses crckapb.sty (included in submission). To appear in ``Ringberg Workshop on Large-Scale Structure,'' ed D. Hamilton (Kluwer, Amsterdam), p. 395
Sertularia lichenastrum Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Sertulariidae
Sertularia
Sertularia lichenastrum

description: Sertularia lichenastrum [spec. nov.]
S. denticulis obtusis bifariam imbricatis, calycibus obovatis secundis parallelis, caule pinnato, ramis dichotomis.
Ellis corall. 11. t. 6. f. 10. Corallina erecta pennata, denticulis alternis cauli adpressis, lonchitis l. polypodii facie.
Habitat ad Kamschatka. Steller.
Caules compressi, nudi, articulati. Rami distichi prodeunt, sed dichotomi, bifariam imbricati, foliolis obtusis (uti Ellis t. 6. f. A.), ut fere quadrangulares evadant. Ab altero latere tantum ramulorum Ovaria obovata, apice hiantia, sessilia, proxima, parallela & pectinata serie secundum unicum s. interius latus ramuli.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on pages 813-814, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
An explanation for the peculiar periphery of supernova remnant G309.2-0.6
Creators: name: Yu, Huan
name: Fang, Jun
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Supernova remnant (SNR) G309.2-0.6 has a peculiar radio morphology with two bright ears to the southwest and northeast, although the main shell outside the ears is roughly circular. Based on an earlier proposal that the supernova ejecta has a jet component with extra energy, the dynamical evolution of the remnant is solved using 3D hydrodynamical (HD) simulation to investigate the formation of the periphery of the remnant. Assuming the ejecta with a kinetic energy of $10^{51}$\,erg and a mass of $3~\mathrm{M}_{\odot}$ evolved in a uniform ambient medium for a time of $\sim 4000$\,yr and the jet component has cylindrical symmetry with a half open angle of $10^\circ$, the result indicates that the energy contained in the jet is about $10-15\%$ of the kinetic energy of the entire ejecta to reproduce the detected profile. This study supports that the remnant originated from a jet-driven core-collapse supernova.
description: RAA accepted
Conformational dynamics of a single protein monitored for 24 hours at video rate
Creators: name: Ye, Weixiang
name: Götz, Markus
name: Celiksoy, Sirin
name: Tüting, Laura
name: Ratzke, Christoph
name: Prasad, Janak
name: Ahijado-Guzmán, Rubén
name: Hugel, Thorsten
name: Sönnichsen, Carsten
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: 92

description: We use plasmon rulers to follow the conformational dynamics of a single protein for up to 24 h at a video rate. The plasmon ruler consists of two gold nanospheres connected by a single protein linker. In our experiment, we follow the dynamics of the molecular chaperone heat shock protein 90, which is known to show open and closed conformations. Our measurements confirm the previously known conformational dynamics with transition times in the second to minute time scale and reveals new dynamics on the time scale of minutes to hours. Plasmon rulers thus extend the observation bandwidth 3/4 orders of magnitude with respect to single-molecule fluorescence resonance energy transfer and enable the study of molecular dynamics with unprecedented precision.
Brillouin Scattering Microscopy for Mechanical Imaging
Creators: name: Antonacci, Giuseppe
Publisher: name: Imperial College London
Year: 2015

description: In a world where science is constantly challenged to solve problems of increasing complexity, light is paving new ways to gather information about the physical properties of matter. Among these properties, elasticity is becoming fundamental in the understanding and the diagnosis of several diseases. Current solutions to gather mechanical information, however, measure the response of a material to an applied excitation, which makes them invasive and limited by a low spatial resolution. In contrast with these techniques, Brillouin spectroscopy offers the unique solution to retrieve stiffness information from the spectrum of the light scattered by inherent thermal acoustic waves. The combination of Brillouin spectroscopy with confocal microscopy has yielded a confocal Brillouin microscope able to perform mechanical imaging in a non-invasive manner. This was used to investigate two different biological problems: on the one hand the stiffness variations in specific endothelium cells of the eye, aiming at a better understanding of the mechanisms responsible for glaucoma, and on the other the characterisation of the mechanical structures of blood vessels, which could provide fundamental information regarding the formation of atherosclerotic plaques. Following an investigation on the optimal geometry that minimises the spectral broadening caused by the collection of photons over a range of scattering angles, high resolution Brillouin imaging was obtained in a confocal backscattering arrangement. To the best of our knowledge this thesis presents, for the first time, sub-cellular Brillouin images. In particular, in vitro Brillouin images of single HUVEC cells were acquired to investigate the cell’s mechanical response to the application of the Latrunculin-A drug. This analysis, together with the finding of a linear correlation between the Brillouin modulus and the standard Young’s modulus, validates the technique as a feasible means of measuring stiffness. Following this assessment, Brillouin images of normal and diseased vessels were acquired showing that the atherosclerotic plaques had a lower stiffness compared to both diseased and healthy vessel walls. These results might encourage the application of confocal Brillouin microscopy as the tool of choice for the investigation of the arterial biomechanics.
The Isovector Quadrupole-Quadrupole Interaction Used in Shell Model Calculations
Creators: name: Fayache, M. S.
name: Sharma, S. Shelly
name: Zamick, L.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: An interaction $-χQ\cdot Q(1+B\vecτ(1)\cdot \vecτ(2))$ is used in a shell model calculation for $^{10}Be$. Whereas for $B=0$ the $2_1^+$ state is two-fold degenerate, introducing a negative $B$ causes an `isovector' $2^+$ state to come down to zero energy at $B=-0.67$ and an $S=1~L=1$ triplet ($J=0^+,~1^+,~2^+$) to come down to zero energy at $B=-0.73$. These are undesirable properties, but a large negative $B$ is apparently needed to fit the energy of the isovector giant quadrupole resonance.
description: 12 pages, revtex, 2 figures (available on request)
Reminiscences of Hazel Corbin, 1970
Publisher: name: Columbia University
Year: 2021
Subjects: Nurses
Nursing--Study and teaching
Maternal health services
Medical laws and legislation

description: Description of her work for maternity care through Maternity Center Association (1918-1965): prenatal care, maternity institutes, training public health nurses, certification program for nurse-midwives, teaching aids; health legislation and federal agencies; World Health Organization
New lanthanide-based complexes constructed from cucurbit[6]uril: Synthesis, structures and properties
Creators: name: Qiu, Xiumin
name: Wang, Xin
name: Hou, Shengzhen
name: Ma, Haili
name: Tan, Yebang
Publisher: name: Taylor & Francis
Year: 2018
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Cell Biology
Chemical Sciences not elsewhere classified
Mental Health

description: Three lanthanide-based complexes, {Gd2(H2O)10(CB[6])2}·CB[6]·6Cl·12H2O (1), {[Gd2(H2O)8CB[6]2]·(CuCl4)·4Cl·46H2O}n (2), and {Dy2(NO3)2(H2O)10(CB[6])}·4NO3·14H2O (3) (CB[6] = cucurbit[6]uril), were prepared with cucurbit[6]uril (CB[6]). These complexes were characterized by single-crystal X-ray diffraction, elemental analysis, FT-IR spectroscopy, UV–Vis spectroscopy, thermogravimetric analysis and magnetization measurements. Crystallographic results showed that 1 and 3 are dinuclear and crystallize in the triclinic space group Pī, whereas 2 is a 1-D zigzag supramolecular chain that crystallizes in the monoclinic system in C2/c. The results indicated that temperature has a big effect on the supramolecular assemblies and a different structure inducer also leads to the formation of different coordination polymers. Frequency dependence in the ac susceptibility signals was observed in 3.
Role of Atopy in Interferon Production in Response to Rhinovirus and Streptococcus pneumoniae Infection in Mild Asthma
Creators: name: Macintyre, Jonathan David Robert
Publisher: name: Imperial College London
Year: 2013

description: Asthma exacerbations result in significant morbidity and rhinoviruses (RVs) are largely responsible. Asthmatics have increased susceptibility to RV infections and defective RV-induced interferon (IFN) production in atopic asthmatics (AA) has been observed in human bronchial epithelial cells (HBECs) and bronchoalveolar lavage (BAL) cells. 70-90% of asthmatics are atopic. Whether the previously observed IFN deficiency is asthma- or atopy-specific is unknown. Asthmatics have increased risk of invasive disease with Streptococcus pneumoniae (Spn) and proinflammatory/antibacterial cytokines are protective against bacterial infections. IFNs are anti-viral cytokines, but models of Spn infection have demonstrated type I IFNs are protective. Investigation of toll-like receptors (TLRs) might delineate the signalling pathways involved in IFN/proinflammatory cytokine deficiencies further. This study hypothesised that RV, Spn and TLR stimulation of HBECs, BAL cells and peripheral blood mononuclear cells (PBMCs) would result in deficient IFN production in AA and non-atopic asthmatics (NAA), compared to atopic non-asthmatics (ANA) and non-atopic non-asthmatics (NANA). IFN and proinflammatory cytokine mRNA and protein expression was analysed by qPCR and the MesoScale Discovery platform. IFNs were induced in all cell types following stimulation with RVs and TLR3/7/8 agonists. No differences were observed between asthmatics or controls; thus the role of atopy in IFN deficiency is still uncertain. IFNs were not induced from Spn-stimulated cells. Anti-bacterial cytokines were induced in PBMCs stimulated with Spn, but no differences were observed between asthmatics or controls. HBECs responded to TLR1/2/6/4/5/9 stimulation with non-significant increases in anti-bacterial cytokines and type III IFNs. PBMCs responded to TLR1/2/6/4/5/9 stimulation with no induction of type I or III IFNs, but increases in anti-bacterial cytokine proteins. Deficiency in asthmatics was not observed. The lack of IFN/proinflammatory cytokine deficiency was suggested to be due to the asthmatics having relatively mild disease. Further studies in more severe forms of asthma are required to investigate these responses further.
Reminiscences of Heinz Hartmann 1963
Publisher: name: Columbia University
Year: 2019
Subjects: Psychoanalysts
Psychoanalysis

description: Early education, Vienna; development of interest and training in psychoanalysis in Berlin and Vienna; analysis by Sigmund Freud; early associations with leading figures in European and American psychoanalytic movement; EGO PSYCHOLOGY AND THE PROBLEM OF ADAPTATION, 1939; effect of ego metaphysical writings on current psychoanalitic theory and technique; New York Psychoanalytic Institute; collaborative work with Drs. Rudolph Loewenstein and Ernest Kris.
Projectile $Δ$ Excitations in $p(p,n)Nπ$ Reactions
Creators: name: Jo, Yung
name: Lee, Chang-Yong
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It has recently been proven from measurements of the spin-transfer coefficients $D_{xx}$ and $D_{zz}$ that there is a small but non-vanishing $ΔS=0$ component $σ_{0}$, in the inclusive $p(p,n)Nπ\,$ reaction cross section $σ\,$. It is shown that the dominant part of the measured $σ_{0}$ can be explained in terms of the projectile $Δ$ excitation mechanism. An estimate is further made of contributions to $σ_{0}$ from s-wave rescattering process. It is found that s-wave rescattering contribution is much smaller than the contribution coming from projectile $Δ$ excitation mechanism. The addition of s-wave rescattering contribution to the dominant part, however, improves the fit to the data.
description: 9 pages, Revtex, figures can be obtained upon request
Where's the Doughnut? LBV bubbles and Aspherical Fast Winds
Creators: name: Frank, Adam
name: Ryu, Dongsu
name: Davidson, Kris
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we address the issue of the origin of LBV bipolar bubbles. Previous studies have explained the shapes of LBV nebulae, such as $η$ Car, by invoking the interaction of an isotropic fast wind with a previously deposited, slow aspherical wind (a ``slow torus''). In this paper we focus on the opposite scenario where an aspherical fast wind expands into a previously deposited isotropic slow wind. Using high resolution hydrodynamic simulations, which include the effects of radiative cooling, we have completed a series of numerical experiments to test if and how aspherical fast winds effect wind blown bubble morphologies. Our experiments explore a variety of models for the latitudinal variations of fast wind flow parameters. The simulations demonstrate that aspherical fast winds can produce strongly bipolar outflows. In addition the properties of outflows recover some important aspects of LBV bubbles which the previous "slow torus" models can not.
description: 23 pages, 6 figures, to appear the Astrophysical Journal
Reminiscences of Heikki Seppa 1987
Publisher: name: Columbia University
Year: 2019
Subjects: Art metal-workers
Goldwork
Silverwork
Art metal-work

description: Childhood in Finland; education at the Goldsmith School in Helsinki, Georg Jensen's Silversmiths workshop in Denmark, and Cranbrook Academy of Art; discussion of teaching and awards received; silversmithing techniques and comparison with goldsmithing; discussion of contemporary metalsmithing as art.
Colour-singlet strangelets at finite temperature
Creators: name: Mustafa, M. G.
name: Ansari, A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Considering massless $u$ and $d$ quarks, and massive (150 MeV) $s$ quarks in a bag with the bag pressure constant $B^{1/4} = 145$ MeV, a colour-singlet grand canonical partition function is constructed for temperatures $T = 1-30$ MeV. Then the stability of finite size strangelets is studied minimizing the free energy as a function of the radius of the bag. The colour-singlet restriction has several profound effects when compared to colour unprojected case: (1) Now bulk energy per baryon is increased by about $250$ MeV making the strange quark matter unbound. (2) The shell structures are more pronounced (deeper). (3) Positions of the shell closure are shifted to lower $A$-values, the first deepest one occuring at $A=2$, famous $H$-particle ! (4) The shell structure at $A=2$ vanishes only at $T\sim 30$ MeV, though for higher $A$-values it happens so at $T\sim 20$ MeV.
description: Revtex file(8 pages)+6 figures(ps files) available on request from first Author
Reminiscences of Hazel K. Johnson 1979
Publisher: name: Columbia University
Year: 2019
Subjects: Composers
Musicians
Modern dance
Dance music
Dance teachers
Composition (Music)

description: Music and dance training at Western Women's College, Oxford, Ohio, 1937-41; meeting with Norman Lloyd and Martha Hill, Hood College, 1940; Bennington Summer School of the Arts, 1940-42: intense creative atmosphere, Louis Horst's music-for-dance course and his influence on her teaching, leisure time, composing for Nona Schurman; teaching: Cornell 1941-2, Bennington 1943-8; contrast between summer and winter schools at Bennington; summer school at Connecticut College; Bennington network of contacts; recollections of Martha Graham, Doris Humphrey, Martha Hill, Louis Horst.
G309.2-00.6 and jets in supernova remnants
Creators: name: Gaensler, B. M.
name: Green, A. J.
name: Manchester, R. N.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Australia Telescope Compact Array observations of the supernova remnant (SNR) G309.2-00.6. In a 1.3-GHz continuum image the remnant appears as a near-circular shell, but with two brightened and distorted arcs of emission on opposite sides. HI absorption against the SNR yields a distance in the range 5.4 to 14.1 kpc, corresponding to an age (1-20)x10^3 yr. On the basis of the SNR's morphology we argue that it is a younger analogue of the W50/SS433 system, and that its unusual appearance is a result of opposed jets or outflows from a central source. A jet-like feature and breaks in the shell can both be seen along the axis of proposed outflow, providing further support for this interpretation; the central source itself is not detected. The SNR may be interacting with the adjacent HII region RCW 80 through an extension of the proposed outflow beyond its shell. This would put the SNR at the lower limit of its distance range and would imply an age <4000 yr. We consider other SNRs similar to G309.2-00.6, and propose remnants whose shells are affected by jets as one of several classes of SNR from which the presence of a central source can be inferred.
description: 13 pages, 5 embedded eps figures + 2 jpg figures, mn.sty; MNRAS, in press
Организация деятельности студентов в электронной информационно-образовательной среде (на примере работы с видеоматериалом)
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2025
Subjects: digitalisation
transformation
opportunities
conditions
algorithm
interdisciplinarity
transdisciplinarity
activity
achievement
result
choice
labour intensity
цифровизация
трансформация
возможности
условия
алгоритм
междисциплинарность
трансдисциплинарность
деятельность
достижение
результат
выбор
трудоемкость

description: Международный научно-исследовательский журнал, Выпуск 4 (154) 2025
Rho-Omega Mixing Off Shell and Charge Symmetry Breaking In the N-N Potential
Creators: name: Cohen, Thomas D.
name: Miller, Gerald A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The role of the off-shell dependence of $ρ-ω$ mixing in the charge symmetry breaking nucleon-nucleon potential is discussed. It is shown that models describing the off-shell dependence of $ρ-ω$ mixing are not sufficient to determine the charge symmetry breaking nucleon-nucleon potential.
description: 22 pages, revtex, no figures
Sertularia cedrina Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Sertulariidae
Sertularia
Sertularia cedrina

description: Sertularia cedrina [spec. nov.]
S. denticulis subcylindricis tubulosis quadrifariam imbricatis, ramis vagis quadrangulis sursum incrassatis.
Habitat ad Kamschatka. Steller.
Caules longiusculi, sordidi & squalentes. Rami vagi, saepe dichotomi, sensim versus apices vix manifeste crassiores, obtusi, toti quadrifariam undique imbricati tubulis cylindricis, flavescentibus, unde rami valde quadrangulares evadunt. Differt a S. Thuja quod squamae non distinctae, sed omnino imbricatae, & quod quadrifariam imbricatae sunt, rarius quinquefariam, nec bifariam.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 814, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Two Model-Independent Results for the Momentum Dependence of Rho-Omega Mixing
Creators: name: Maltman, Kim
Publisher: name: arXiv
Year: 1995
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Two model-independent results on the momentum-dependence of $ρ$-$ω$ mixing are described. First, an explicit choice of interpolating fields for the vector mesons is displayed for which both the mixing in the propagator and the isospin-breaking at the nucleon-vector meson vertices (and hence also the one-vector-meson-exchange contribution to NN charge symmetry breaking) vanish identically at $q^2=0$. Second, it is shown, using the constraints of unitarity and analyticity on the spectral function of the vector meson propagator, that there is no possible choice of interpolating fields for the $ρ^0$, $ω^0$ mesons such that, with the $ρω$ element of the propagator defined by $Δ^{ρω}_{μν}(q^2)= (g_{μν}-q_μq_ν/q^2)$$θ(q^2)/(q^2-m^2_ρ)(q^2- m^2_ω)$, $θ(q^2)$ is independent of momentum. It follows that the standard treatment of charge symmetry breaking in few-body systems cannot be interpreted as arising from any realizable effective meson-baryon Lagrangian and must, therefore, be considered purely phenomenological in content.
description: 14 pages, uses REVTEX Entire manuscript available as a ps file at http://www.physics.adelaide.edu.au/theory/home.html Also available via anonymous ftp at ftp://adelphi.adelaide.edu.au/pub/theory/ADP-95-35.T189.ps