cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Leptogenesis with an almost conserved lepton number
Creators: name: Asaka, Takehiko
name: Blanchet, Steve
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Seesaw models with a slightly broken lepton number symmetry can explain small neutrino masses, and allow for low-scale leptogenesis. We make a thorough analysis of leptogenesis within the simplest model with two right-handed (RH) neutrinos (or with N_3 decoupled). We obtain a semi-analytical formula for the final asymmetry in both supersymmetric and non-supersymmetric cases with a simple dependence on each parameter. The low-energy parameters factorize from the high-energy ones, and the high-energy phase must be non-zero. The role of the PMNS phases is carefully studied. Moreover, we find that the breaking parameter in the Yukawa coupling matrix must be relatively large, ε_h > 10^{-3} for normal and 10^{-2} for inverted hierarchy. Therefore, leptogenesis in our simple model is incompatible with RH neutrino signals at future colliders or sizable lepton-flavor violation. The other breaking parameter, ε_M, which appears in the RH neutrino mass matrix, can be much smaller, and actually needs to be so in order to have low-scale leptogenesis.
description: Footnote added; Factor of 2 in the supersymmetric case corrected
Asteroseismic analysis of eight solar-like oscillating evolved stars in the open cluster NGC 6811
Creators: name: Orhan, Zeynep Çelik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The {\emph{Kepler}} space telescope has provided exquisite data to perform asteroseismic analysis on evolved star ensembles. Studying star clusters offers significant insight into stellar evolution and structure, due to having a large number of stars with essentially the same age, distance, and chemical composition. This study analysed eight solar-like oscillating evolved stars that are members of the open cluster NGC 6811 and modelled them for the first time. The fundamental stellar parameters are obtained from the interior model using observational asteroseismic and non-asteroseismic constraints. The stellar interior models are constructed using the {\small {MESA}} evolution code. The mass-loss method is included in the interior models of the stars. The stellar masses and radii ranges of the stars are 2.23-2.40 $M_{\odot}$ and 8.47-12.38 $R_{\odot}$, respectively. Typical uncertainties for the mass and radius are $\sim$ 0.11 $M_{\odot}$ and $\sim$ 0.09 $R_{\odot}$, respectively. The model masses and radii are compared with masses and radii obtained from asteroseismic and non-asteroseismic methods (scaling relations and classic methods). The stellar ages fell in the range between $0.71$ and $0.82$ Gyr, with a typical uncertainty of $\sim$ $18$ per cent. The model ages of the star calculated in this study are compatible with those reported in the literature for NGC 6811.
description: 10 pages, 7 figures
Multistage andesite genesis in the Garibaldi Lake area, southwestern British Columbia
Creators: name: Green, Nathan Louis
Publisher: name: University of British Columbia
Year: 2010

description: The products of Pleistocene-Recent volcanlsm in the area just north of Mount Garibaldi are hornblende-andesite, hornblende-blotite andesite, and less voluminous two-pyroxene andesite, olivine-basalt, basaltic-andesite and hornblende-daclte. The basic lavas are predominantly alkali-basalt, hy-normative hawaiites and mugearites. Andesites and associated intermediate rocks have a calc-alkaline affinity, and show strong enrichment in Sr (700-1400 ppm) and Ba (400-800 ppm), further emphasizing the major compositional gap between these lavas and contemporaneous basalts. All lavas display depletion in Rb (4-25 ppm), low Sr⁸⁷/Sr⁸⁶ ratios (0.7028-0.7036) and high K/Rb ratios (500-1100) relative to typical orogenic volcanic series. Cheakamus Valley basalts contain phenocrysts of olivine, clinopyroxene and plagioclase. Garibaldi Lake basaltic-andesites have similar phenocrysts, but also contain amphibole and titanomagnetite. In the Sphinx Moraine basaltic-andesite, crystal clots of diopsidic augite and hornblende, and amphibole megacrysts enclosing ragged grains of olivine (Fo[sub 87-80]) suggest that amphibole and clinopyroxene co-precipitated from more mafic parental magma, with early-formed olivine in reaction relationship with the liquid. Calculated phenocrystsequilibration pressures range from 4.5 to 11 kb and average 7.5 kb (~25 km), indicating lower crustal crystallization. Estimated f[sub H₂O] for hornblende-bearing lavas suggest phenocryst equilibration under P[sub H₂O] < P[sub Total], with X[sup Liq] [sub H₂O] ~ 0.09-0.15 (3-5 wt. %). The phenocryst mineralogy of The Table (PL + AMPB + OPX + MT), Mount Price (PL + AMPB + BO + OPX + MT), and The Black Tusk (PL + CPX + OPX + MT) silicic-andesites demonstrates, that chemically distinct magma batches crystallized under different P (2-5 kb) , T (825-975°C) and P[sub H₂O] conditions. The low K/Na and Fe/Mg ratios, strong enrichment of Sr and Ba, and marked depletion in Rb and V argue against equilibrium melting of quartz eclogite within subducted oceanic crust. The andesites have Mg/(Mg + Fe²⁺) values and Ni and Cr contents too low for these lavas to represent unmodified partial melts of mantle peridotite. The results of equilibrium calculations, however, suggest that the parental magmas of the andesites could have equilibrated with peridotitic residuum at 1150-1235°C and 15-20 kb. The evolution of Garibaldi Lake andesite magmas can only be explained by a multistage model. It involves: (1) varying degrees of partial melting of wet peridotite above the Benioff zone to produce water-undersaturated tholeiite magmas; (2) high-pressure (>5 kb) fractionation of olivine ± clinopyroxene ± amphibole ± Cr-spinel from the basic melts at or near the base of the crust; and (3) low-pressure (2-5 kb) segregation of plagioclase ± amphibole ± biotite + pyroxene + magnetite from more intermediate compositions.
Additional file 6: of The effects of yoga compared to active and inactive controls on physical function and health related quality of life in older adults- systematic review and meta-analysis of randomised controlled trials
Creators: name: Sivaramakrishnan, Divya
name: Fitzsimons, Claire
name: Kelly, Paul
name: Ludwig, Kim
name: Mutrie, Nanette
name: Saunders, David
name: Baker, Graham
Publisher: name: figshare
Year: 2019
Subjects: Biological Sciences not elsewhere classified
Developmental Biology
Science Policy

description: Sensitivity analysis results. Results of the sensitivity analysis conducted are provided in this document. This includes Forest plots and homogeneity data. (PDF 307 kb)
Bubble dynamics in Liquid Hole Multipliers
Creators: name: Tesi, A.
name: Segre, E.
name: Leardini, S.
name: Breskin, A.
name: Kapishnikov, S.
name: Moleri, L.
name: Vartsky, D.
name: Bressler, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: In bubble-assisted Liquid HoleMultipliers(LHM), developed for noble-liquid radiation detectors, the stability of the bubble and the electro-mechanical properties of the liquid-to-gas interface play a dominant role in the detector performance. A model is proposed to evaluate the static equilibrium configurations of a bubble sustained underneath a perforated electrode immersed in a liquid. For the first time bubbles were optically observed in LAr; their properties were studied in contact with different material surfaces. This permitted investigating the bubble-electrodynamics via numerical simulations; it was shown that the electric field acts as an additional pressure term on the bubble meniscus. The predictions for the liquid-to-gas interface were successfully validated using X-ray micro-CT in water and in silicone oil at STP. The proposed model and the results of this study are an important milestone towards understanding and optimizing the parameters of LHM-based noble-liquid detectors.
description: 25 pages, 15 figures
Mirror-mediated cooling: a paradigm for particle cooling via the retarded dipole force
Creators: name: Freegarde, Tim
name: Bateman, James
name: Xuereb, André
name: Horak, Peter
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Cooling forces result from the retarded dipole interaction between an illuminated particle and its reflection. For a one-dimensional example, we find cooling times of milliseconds and limiting temperatures in the millikelvin range. The force, which may be considered the prototype for cavity-mediated cooling, may be enhanced by plasmon and geometric resonances at the mirror.
description: 25 pages, 8 figures
Design de interfaces como uma ferramenta para desenvolvimento das cidades inteligentes
Creators: name: Mendes, Claudiceia Silva
name: Porto, Renata Maria Abrantes Baracho
Publisher: name: Labfront/UEMG
Year: 2023

description: Este artigo aborda o papel do design de interfaces como uma ferramenta essencial para o desenvolvimento das cidades inteligentes, considerando que as cidades enfrentam desafios cada vez maiores no contexto da urbanização acelerada e da rápida evolução tecnológica, busca aprimorar a interação entre os cidadãos e o ambiente urbano, impulsionando a eficiência, a sustentabilidade e a qualidade de vida. Ao longo deste artigo, exploraremos como o design de interfaces pode ser aplicado no contexto das cidades inteligentes, discutindo seus benefícios, desafios e exemplos práticos de implementação bem-sucedida. A metodologia utilizada foi de pesquisa bibliográfica. Como resultados o design de interfaces nas cidades inteligentes pode criar uma experiência urbana mais eficiente, conectada e agradável, promovendo o desenvolvimento das cidades inteligentes.
The Dirac Equation and the Normalization of its Solutions in a Closed Friedmann-Robertson-Walker Universe
Creators: name: Finster, Felix
name: Reintjes, Moritz
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We set up the Dirac equation in a Friedmann-Robertson-Walker geometry and separate the spatial and time variables. In the case of a closed universe, the spatial dependence is solved explicitly, giving rise to a discrete set of solutions. We compute the probability integral and analyze a space-time normalization integral. This analysis allows us to introduce the fermionic projector in a closed Friedmann-Robertson-Walker geometry and to specify its global normalization as well as its local form.
description: 22 pages, LaTeX, sign error in equation (3.7) corrected
Additional file 8 of Functional gene-guided enrichment plus in situ microsphere cultivation enables isolation of new crucial ureolytic bacteria from the rumen of cattle
Creators: name: Liu, Sijia
name: Yu, Zhongtang
name: Zhong, Huiyue
name: Zheng, Nan
name: Huws, Sharon
name: Wang, Jiaqi
name: Zhao, Shengguo
Publisher: name: figshare
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 8: Supplementary Fig. 3. Circular diagrams of the core and unique gene clusters of the ureolytic isolates of individual species.
Theory progress at Strange Quark Matter 2021
Creators: name: Schenke, Bjoern
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: I review recent theory progress reported at the 19th International Conference on Strangeness in Quark Matter (SQM), and discuss open questions to be addressed by the coming editions of SQM.
description: 6 pages
A universal relationship between stellar masses and binding energies of galaxies
Creators: name: Shi, Yong
name: Yu, Xiaoling
name: Mao, Shude
name: Gu, Qiusheng
name: Xia, Xiaoyang
name: Chen, Yanmei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this study we demonstrate that stellar masses of galaxies (Mstar) are universally correlated through a double power law function with the product of the dynamical velocities (Ve) and sizes to one-fourth power (Re^0.25) of galaxies, both measured at the effective radii. The product VeRe^0.25 represents the fourth root of the total binding energies within effective radii of galaxies. This stellar mass-binding energy correlation has an observed scatter of 0.14 dex in log(VeRe^0.25) and 0.46 dex in log(Mstar). It holds for a variety of galaxy types over a stellar mass range of nine orders of magnitude, with little evolution over cosmic time. A toy model of self-regulation between binding energies and supernovae feedback is shown to be able to reproduce the observed slopes, but the underlying physical mechanisms are still unclear. The correlation can be a potential distance estimator with an uncertainty of 0.2 dex independent of the galaxy type.
description: 10 pages, 7 figures, MNRAS in press
Invariant-mass spectrum of $Λ\barΛ$ pair in the process $e^+e^-\rightarrowϕΛ\barΛ$
Creators: name: Milstein, A. I.
name: Salnikov, S. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We show that the final-state interaction perfectly explains the recent experimental data of BESIII Collaboration on the near-threshold invariant-mass spectrum of $Λ\barΛ$ in the process $e^+e^-\rightarrowϕΛ\barΛ$. The position of peak in invariant-mass spectrum is above the threshold though the interaction of $Λ$ and $\barΛ$ is due to an attractive potential. This potential has a simple form and depends only on two parameters. We show that the invariant-mass spectrum is consistent with the quantum numbers $J^{PC}=1^{++}$ and $2^{++}$ of $Λ\barΛ$ pair but contradicts to $J^{PC}=2^{-+}$.
description: 3 pages, 1 figure
Cultura Underground e Software Livre
Creators: name: Sousa, Júlio César
name: Sousa, Emanuel Silva
name: Schiavoni, Flávio Luiz
Publisher: name: Labfront/UEMG
Year: 2023

description: Alguns estilos musicais, como o Hip-Hop, Miami Bass e Funk, surgiram pela utilização de aparelhos eletrônicos para a criação de suas músicas que, atualmente, são produzidas por meio de ferramentas computacionais. A criação musical nestes estilos, por ser totalmente feita por meio de ferramentas computacionais, possuem uma grande dependência destas ferramentas que podem ser de código-aberto ou proprietárias. Enquanto ferramentas proprietárias trazem um custo de aquisição e alguns resultados esperados dentro de padrões estéticos, ferramentas livres não possuem custos de aquisição mas podem ser consideradas limitadas por não entregarem os mesmos resultados estéticos que o software proprietário. Diante desta dicotomia, o presente trabalho apresenta considerações sobre o uso de software livre na criação de música eletrônica por meio de oficinas de criação musical baseada em software livre. Nestas, tanto leigos quanto profissionais na criação de música eletrônica puderam avaliar o resultado de sua própria composição nestas ferramentas.
Contrastive Multiview Coding with Electro-optics for SAR Semantic Segmentation
Creators: name: Cha, Keumgang
name: Seo, Junghoon
name: Choi, Yeji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In the training of deep learning models, how the model parameters are initialized greatly affects the model performance, sample efficiency, and convergence speed. Representation learning for model initialization has recently been actively studied in the remote sensing field. In particular, the appearance characteristics of the imagery obtained using the a synthetic aperture radar (SAR) sensor are quite different from those of general electro-optical (EO) images, and thus representation learning is even more important in remote sensing domain. Motivated from contrastive multiview coding, we propose multi-modal representation learning for SAR semantic segmentation. Unlike previous studies, our method jointly uses EO imagery, SAR imagery, and a label mask. Several experiments show that our approach is superior to the existing methods in model performance, sample efficiency, and convergence speed.
description: To be appeared in IEEE GRSL. DOI to be updated
Role of transverse-momentum currents in the optical Magnus effect in free space
Creators: name: Luo, Hailu
name: Wen, Shuangchun
name: Shu, Weixing
name: Fan, Dianyuan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We establish a general vector field model to describe the role of transverse-momentum currents in the optical Magnus effect in free space. As an analogy of the mechanical Magnus effect, the circularly polarized wave packet in our model acts as the rotating ball, and its rotation direction depends on the polarization state. Based on this model, we demonstrate the existence of an optical polarization-dependent Magnus effect which is significantly different from the conventional optical Magnus effect in that light-matter interaction is not required. Further, we reveal the relation between transverse-momentum currents and the optical Magnus effect, and find that such a polarization-dependent rotation is unavoidable when the wave packet possesses transverse-momentum currents. The physics underlying this intriguing effect is the combined contributions of transverse spin and orbital currents. We predict that this effect may be observed experimentally even in the propagation direction. These findings provide further evidence for the optical Magnus effect in free space and can be extrapolated to other physical systems.
description: 19 pages, 7 figures
Mixxx e suas possibilidades de mixagem
Creators: name: Sousa, Carlos Eduardo Oliveira
name: Schiavoni, Flávio Luiz
Publisher: name: Labfront/UEMG
Year: 2023

description: Pretendemos neste trabalho apresentar uma discussão em torno dos softwares livres para DJs, abordando a liberdade presente no software (Mixxx) no que diz respeito à contribuições para o programa e a possibilidade de exportar configurações pré definidas num set como arquivo e carregar esses presets em outras ferramentas. A discussão também passa pelo uso desses programas em apresentações e oficinas, trazendo a discussão tecnológica junto da área musical presente nesse universo da música eletrônica, compartilhando um pouco das vivências experienciadas em performances ao vivo e abordando a experimentação musical que surge nesse meio e sua importância na música contemporânea.
Regulatory Feedback Effects on Tissue Growth Dynamics in a Two-Stage Cell Lineage Model
Creators: name: Wang, Mao-Xiang
name: Lander, Arthur
name: Lai, Pik-Yin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Identifying the mechanism of intercellular feedback regulation is critical for the basic understanding of tissue growth control in organisms. In this paper, we analyze a tissue growth model consisting of a single lineage of two cell types regulated by negative feedback signalling molecules that undergo spatial diffusion. By deriving the fixed points for the uniform steady states and carrying out linear stability analysis, phase diagrams are obtained analytically for arbitrary parameters of the model. Two different generic growth modes are found: blow-up growth and final-state controlled growth which are governed by the non-trivial fixed point and the trivial fixed point respectively, and can be sensitively switched by varying the negative feedback regulation on the proliferation of the stem cells. Analytic expressions for the characteristic time scales for these two growth modes are also derived. Remarkably, the trivial and non-trivial uniform steady states can coexist and a sharp transition occurs in the bistable regime as the relevant parameters are varied. Furthermore, the bi-stable growth properties allows for the external control to switch between these two growth modes. In addition, the condition for an early accelerated growth followed by a retarded growth can be derived. These analytical results are further verified by numerical simulations and provide insights on the growth behavior of the tissue. Our results are also discussed in the light of possible realistic biological experiments and tissue growth control strategy. Furthermore, by external feedback control of the concentration of regulatory molecules, it is possible to achieve a desired growth mode, as demonstrated with an analysis of boosted growth, catch-up growth and the design for the target of a linear growth dynamic.
description: to be published in Physical Review E
Hadrons in strongly interacting matter
Creators: name: Leupold, Stefan
name: Metag, Volker
name: Mosel, Ulrich
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We review the current status of theories and experiments aiming at an understanding and a determination of the properties of light vector and scalar mesons inside strongly interacting hadronic matter. Starting from a discussion of the relevant symmetries of QCD and their connection with the hadronic description through QCD sum rules we then discuss hadronic models used to calculate the in-medium self-energies of hadrons and their spectral functions. The difficulties to link these calculated properties to actual observables are emphasized. Finally, we review in detail all the running experiments searching for in-medium changes of vector and scalar mesons, both with relativistic heavy-ion reactions as well as with elementary reactions on (cold) nuclei. Inconsistencies among experimental results are discussed. While almost all experiments observe a considerable broadening of vector mesons inside the nuclear medium, no evidence for mass changes is observed in the majority of the experiments.
description: Review, revised version, to appear in Int. J. Mod. Phys. E
A relaxation scheme for computation of the joint spectral radius of matrix sets
Creators: name: Kozyakin, Victor
Publisher: name: arXiv
Year: 2008
Subjects: subject: Rings and Algebras (math.RA)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 15A18, 15A60, 65F15

description: The problem of computation of the joint (generalized) spectral radius of matrix sets has been discussed in a number of publications. In the paper an iteration procedure is considered that allows to build numerically Barabanov norms for the irreducible matrix sets and simultaneously to compute the joint spectral radius of these sets.
description: 16 pages, 2 figures, corrected typos, accepted for publication in JDEA
MOESM1 of Comparative study on the effects of different feeding habits and diets on intestinal microbiota in Acipenser baeri Brandt and Huso huso
Creators: name: Xu, Guanling
name: Xing, Wei
name: Li, Tieliang
name: Xue, Min
name: Ma, Zhihong
name: Jiang, Na
name: Luo, Lin
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1: Table S1. Statistics of sequencing data of each sample after filtration. Table S2. Statistics of OTU species of samples on various levels. Table S3. Statistics of OTU clustering results of samples on various levels. Figure S1. Effective sequence length distribution.
AGATA: Performance of $γ$-ray tracking and associated algorithms
Creators: name: Crespi, F. C. L.
name: Ljungvall, J.
name: Lopez-Martens, A.
name: Michelagnoli, C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: AGATA is a modern $γ$-ray spectrometer for in-beam nuclear structure studies, based on $γ$-ray tracking. Since more than a decade, it has been operated performing experimental physics campaigns in different international laboratories (LNL, GSI, GANIL). This paper reviews the obtained results concerning the performances of $γ$-ray tracking in AGATA and associated algorithms. We discuss $γ$-ray tracking and algorithms developed for AGATA. Then, we present performance results in terms of efficiency and peak-to-total for AGATA. The importance of the high effective angular resolution of $γ$-ray tracking arrays is emphasised, e.g. with respect to Doppler correction. Finally, we briefly touch upon the subject of $γ$-ray imaging and its connection to $γ$-ray tracking.
title: Hallazgos extracolónicos incidentales clínicamente importantes en 600 Colonografías por TC (CTC): influencia en el manejo y seguimiento de los pacientes
Creators: name: Rois Siso, Alba
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neoplasia
subject: Aneurysms
subject: Colonography CT
subject: Computer Applications-Virtual imaging
subject: Computer Applications-3D
subject: CT
subject: Image manipulation / Reconstruction
subject: Colon
subject: Abdomen

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
La Colonografía por Tomografía Computarizada (CTC) es una técnica de imagen emergente,
relativamente nueva,
no invasiva y rápida desarrollada para el cribado de cáncer colorrectal.
En 2008,
la CTC ha sido aceptada por la American Cancer Society...
A continuum-tree-valued Markov process
Creators: name: Abraham, Romain
name: Delmas, Jean-François
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We present a construction of a Lévy continuum random tree (CRT) associated with a super-critical continuous state branching process using the so-called exploration process and a Girsanov's theorem. We also extend the pruning procedure to this super-critical case. Let $ψ$ be a critical branching mechanism. We set $ψ_θ(\cdot)=ψ(\cdot+θ)-ψ(θ)$. Let $Θ=(θ_\infty,+\infty)$ or $Θ=[θ_\infty,+\infty)$ be the set of values of $θ$ for which $ψ_θ$ is a branching mechanism. The pruning procedure allows to construct a decreasing Lévy-CRT-valued Markov process $(\ct_θ,θ\inΘ)$, such that $\mathcal{T}_θ$ has branching mechanism $ψ_θ$. It is sub-critical if $θ>0$ and super-critical if $θ<0$. We then consider the explosion time $A$ of the CRT: the smaller (negative) time $θ$ for which $\mathcal{T}_θ$ has finite mass. We describe the law of $A$ as well as the distribution of the CRT just after this explosion time. The CRT just after explosion can be seen as a CRT conditioned not to be extinct which is pruned with an independent intensity related to $A$. We also study the evolution of the CRT-valued process after the explosion time. This extends results from Aldous and Pitman on Galton-Watson trees. For the particular case of the quadratic branching mechanism, we show that after explosion the total mass of the CRT behaves like the inverse of a stable subordinator with index 1/2. This result is related to the size of the tagged fragment for the fragmentation of Aldous' CRT.
On the self-intersections of curves deep in the lower central series of a surface group
Creators: name: Malestein, Justin
name: Putman, Andrew
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We give various estimates of the minimal number of self-intersections of a nontrivial element of the kth term of the lower central series and derived series of the fundamental group of a surface. As an application, we obtain a new topological proof of the fact that free groups and fundamental groups of closed surfaces are residually nilpotent. Along the way, we prove that a nontrivial element of the kth term of the lower central series of a nonabelian free group has to have word length at least $k$ in a free generating set.
description: 13 pages, 3 figures; a few corrections; to appear in Geom. Dedicata
Additional file 4: of The effects of yoga compared to active and inactive controls on physical function and health related quality of life in older adults- systematic review and meta-analysis of randomised controlled trials
Creators: name: Sivaramakrishnan, Divya
name: Fitzsimons, Claire
name: Kelly, Paul
name: Ludwig, Kim
name: Mutrie, Nanette
name: Saunders, David
name: Baker, Graham
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Science Policy
subject: Mental Health

description: Vote count tables for physical function and HRQoL outcomes. The tables contain columns for outcome, study name, tests and instrument used, intervention and controls, and whether there were significant effects. (PDF 412 kb)
Site Águas no Capão: uma ferramenta pedagógica
Creators: name: Camargos, Núria Manresa
name: Correia, Roseli
name: Penido, Junia Coutinho Gonçalves Corradi
name: Navarro, Ana Alice Nery
name: Soares, Clara Moreira Pirâmides
Publisher: name: Labfront/UEMG
Year: 2023

description: A Base Nacional Comum Curricular (BNCC) estipula uma uniformização de materiais didáticos para todas as escolas do Brasil, afastando os estudantes de um saber localizado em seu território. Ela também separa os conteúdos do relevo, dos conteúdos relativos aos processos de urbanização e dos conteúdos dos ciclos da água. A dissociação desses conteúdos do saber do território implica num desfalque na compreensão de causa e efeito vivenciado em tempos de crise climática. Neste contexto, estamos desenvolvendo um website onde serão fornecidas ferramentas aos professores de uma bacia hidrográfica em Venda Nova, Belo Horizonte. As ferramentas pretendem revelar o comportamento da água na bacia urbanizada e a relação com a vida cotidiana dos moradores humanos e não-humanos neste território ao longo do tempo. O objetivo do site é evidenciar contradições no modo como tratamos a água em meio urbano nos tempos atuais para que, talvez, possam emergir outros imaginários de vida e consequentemente outras formas de organização às margens das águas urbanas.
The perpetual landslide Summerland, British Columbia
Creators: name: Riglin, Linda Diane
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study is to understand the environment for failure of the Perpetual Landslide. To achieve this objective a field investigation was carried out to evaluate the movement pattern of the slide and its geologic and hydrologic environments. This information, along with ground water flow and stability models was used to define major controls on stability. The following points are made: (1) The slide moves by rotation and translation of blocks with a transition to flow movement at the toe. (2) At depth, the failure surface lies within the Tertiary sedimentary rocks. Exposed gouge consists primarily of clay (most likely remolded claystone and some clay-rich till) with dispersed pebbles and rock fragments. (3) Discontinuities including inherent heterogeneity between and within geologic units, weathering, and jointing are significant to the unstable situation. (4) Changes in stress equilibrium, particularly those caused by removal of overburden and lateral support with downcutting in Trout Creek Canyon, are likely important in the origin of the slide. (5) The proposed mechanism of failure is: (a) The progressive reduction from peak to residual strength of the claystone. (b) In addition to the high water table, high pore-water pressures along the failure surface. At the present time, the slide's continuous movement is acting to establish a new stability in equilibrium with this ground water flow system and lower strength.
Magnetism of Kitaev spin-liquid candidate material RuBr$_3$
Creators: name: Imai, Yoshinori
name: Nawa, Kazuhiro
name: Shimizu, Yasuhiro
name: Yamada, Wakana
name: Fujihara, Hideyuki
name: Aoyama, Takuya
name: Takahashi, Ryotaro
name: Okuyama, Daisuke
name: Ohashi, Takamasa
name: Hagihala, Masato
name: Torii, Shuki
name: Morikawa, Daisuke
name: Terauchi, Masami
name: Kawamata, Takayuki
name: Kato, Masatsune
name: Gotou, Hirotada
name: Itoh, Masayuki
name: Sato, Taku J.
name: Ohgushi, Kenya
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The ruthenium halide $α$-RuCl$_{3}$ is a promising candidate for a Kitaev spin liquid. However, the microscopic model describing $α$-RuCl$_{3}$ is still debated partly because of a lack of analogue materials for $α$-RuCl$_{3}$, which prevents tracking of electronic properties as functions of controlled interaction parameters. Here, we report a successful synthesis of RuBr$_{3}$. The material RuBr$_{3}$~possesses BiI$_3$-type structure (space group: $R\overline{3}$) where Ru$^{3+}$ form an ideal honeycomb lattice. Although RuBr$_{3}$ has a negative Weiss temperature, it undergoes a zigzag antiferromagnetic transition at $T_\mathrm{N}=34$ K, as does $α$-RuCl$_{3}$. Our analyses indicate that the Kitaev and non-Kitaev interactions can be modified in ruthenium trihalides by changing the ligand sites, which provides a new platform for exploring Kitaev spin liquids.
Observation of B+ to p Lambdabar pi+ pi- at Belle
Creators: name: Chen, P.
name: Wang, M. -Z.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study charmless $B^+$ meson decays to the $p \barΛ π^+ π^-$ final state using a $605 {\rm fb}^{-1}$ data sample collected at the $Υ(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. There are significant signals found with the $p\barΛ$ mass peaking near threshold. The observed branching fraction for non-resonant $ B^+ \to p \barΛ} π^+ π^-$ is $(5.92^{+0.88}_{-0.84} (stat.) \pm 0.69 (syst.)) \times 10^{-6}$ with a significance of 9.1 standard deviations. We also observe the intermediate three-body decay $B^+ \to p \barΛ ρ^0$ with a branching fraction of $(4.78^{+0.67}_{-0.64} (stat.) \pm 0.60 (syst.)) \times 10^{-6}$ and a significance of 9.5 standard deviations, and find a hint of a $B^+ \to p \barΛ f_2(1270)$ signal. No other intermediate three-body decay is found in this study.
description: 14 pages, 2 figures and 2 tables; submitted to PRD
Sonno e funzioni cognitive: 
ruolo della microstruttura del sonno NREM
Creators: name: Aricò, Debora <1976>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: MED/26 Neurologia

description: STUDY OBJECTIVE: Cyclic Alternating Pattern (CAP) is a fluctuation of the arousal level during NREM sleep and consists of the alternation between two phases: phase A (divided into three subtypes A1, A2, and A3) and phase B. A1 is thought to be generated by the frontal cortex and is characterized by the presence of K complexes or delta bursts; additionally, CAP A1 seems to have a role in the involvement of sleep slow wave activity in cognitive processing. Our hypothesis was that an overall CAP rate would have a negative influence on cognitive performance due to excessive fluctuation of the arousal level during NREM sleep.  However, we also predicted that CAP A1 would be positively correlated with cognitive functions, especially those related to frontal lobe functioning. For this reason, the objective of our study was to correlate objective sleep parameters with cognitive behavioral measures in normal healthy adults.
METHODS: 8 subjects (4 males; 4 females; mean age 27.75 years, range 2334) were recruited for this study. Two nocturnal polysomnography (night 2 and 3 = N2 and N3) were carried out after a night of adaptation. A series of neuropsychological tests were performed by the subjects in the morning and afternoon of the second day (D2am; D2pm) and in the morning of the third day (D3am).  Raw scores from the neuropsychological tests were used as dependent variables in the statistical analysis of the results.
RESULTS: We computed a series of partial correlations between sleep microstructure parameters (CAP, A1, A2 and A3 rate) and a number of indices of cognitive functioning. CAP rate was positively correlated with visuospatial working memory (Corsi block test), Trial Making Test Part A (planning and motor sequencing) and the retention of words from the Hopkins Verbal Learning Test (HVLT). Conversely, CAP was negatively correlated with visuospatial fluency (Ruff Figure Fluency Test). CAP A1 were correlated with many of the tests of neuropsychological functioning, such as verbal fluency (as measured by the COWAT), working memory (as measured by the Digit Span – Backward test), and both delay recall and retention of the words from the HVLT. The same parameters were found to be negatively correlated with CAP A2 subtypes. CAP 3 were negatively correlated with the Trial Making Test Parts A and B.
DISCUSSION: To our knowledge this is the first study indicating a role of CAP A1 and A2 on behavioral cognitive performance of healthy adults. The results suggest that high rate of CAP A1 might be related to an improvement whereas high rate of CAP A2 to a decline of cognitive functions. Further studies need to be done to better determine the role of the overall CAP rate and CAP A3 on cognitive behavioral performances.
Vortex ring refraction at large Froude numbers
Creators: name: Kuehn, Kerry
name: Moeller, Matthew
name: Schulz, Michael
name: Sanfelippo, Daniel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We have experimentally studied the impact of an initially planar axisymmetric vortex ring, incident at an oblique angle, upon a gravity-induced interface separating two fluids of differing densities. After impact, the vortex ring was found to exhibit a variety of subsequent trajectories, which we organize according to both the incidence angle, $θ_i$, and the interface strength, defined as the ratio of the Atwood and Froude numbers, $A/F$. For grazing incidence angles ($θ_i \gtrsim 70$ deg.) vortices either penetrate or reflect from the interface, depending on whether the interface is weak or strong. In some cases, reflected vortices execute damped oscillations before finally disintegrating. For smaller incidence angles ($θ_i \lesssim 70$ deg.) vortices penetrate the interface. When there is a strong interface, these vortices are observed to curve back up toward the interface. When there is a weak interface, these vortices are observed to refract downward, away from the interface. The critical interface strength below which vortex ring refraction is observed is given by $\log_{10}{(A/F)}= -2.38 \pm 0.05$.
description: 26 pages, 11 figures; Submitted to Physical Review E
Scopelocheirus Spence Bate 1857
Creators: name: Zettler, Michael L.
name: Bastrop, Ralf
name: Lowry, James K.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Scopelocheiridae
Scopelocheirus

description: Scopelocheirus Spence Bate, 1857
 Callisoma O. G. Costa, 1838: 5 (nomen nudum)—A. Costa, 1851: 1 (homonym, Coleoptera).— Lilljeborg, 1865a: 33.— Lilljeborg, 1865b: 23.— Heller, 1866: 26.— Boeck, 1871: 101.— Boeck, 1872: 131.—G. O. Sars, 1890: 52.— Della Valle, 1893: 838.
 Scopelocheirus Spence Bate, 1857: 138.—Stebbing, 1906: 61.— Chevreux & Fage, 1925: 54.—Stephensen, 1929: 64.—Schellenberg, 1942: 110.— Gurjanova, 1951: 241.—J. L. Barnard, 1969: 362.— Lincoln, 1979: 50.— Diviacco & Ruffo, 1989: 542.— Barnard & Karaman, 1991: 528, 434 (key), 454 (key).
 Diagnosis. Mandible lacinia mobilis a stemmed, distally expanded, irregularly cusped blade; palp article 2 broadened. Maxilla 2 inner plate slightly longer than outer; outer plate without long distally barbed slender setae. Gnathopod 1 coxa margins diverging distally. Pereopod 5 slightly wider than long; basis greatly expanded posteriorly (after Kilgallen & Lowry, 2015).
 Type species. Scopelocheirus crenatus Spence Bate, 1857.
 Included species. S. crenatus Spence Bate, 1857, S. hopei (Costa in Hope, 1851), S. polymedus Bellan-Santini, 1985, S. sossi sp. nov.
 Remarks. Until the revision of the scopelocheirid amphipods by Kilgallen & Lowry (2015), Scopelocheirus crenatus Spence Bate, 1857 was treated by many authors as a junior synonym of S. hopei (Costa in Hope, 1851). However, as these names have been recorded many times in the literature and appear common in the north-east Atlantic and Mediterranean, the result is a confused synonymy. As noted by Kilgallen & Lowry (2015) the issue is still not sufficiently resolved, as this will require an extensive, detailed study of materials from the type localities and known distributions of both species. This is beyond the scope of this study.
description: Published as part of Zettler, Michael L., Bastrop, Ralf & Lowry, James K., 2023, Ten thousand kilometres away and still the same species? The mystery of identity of Scopelocheirus sp. (Amphipoda: Scopelocheiridae) from the South Atlantic, pp. 609-622 in Records of the Australian Museum (Rec. Aust. Mus.) (Rec. Aust. Mus.) 75 (4) on page 613, DOI: 10.3853/j.2201-4349.75.2023.1896, http://zenodo.org/record/10413468
Social Aggregation as a Cooperative Game
Creators: name: Vilone, Daniele
name: Guazzini, Andrea
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: A new approach for the description of phenomena of social aggregation is suggested. On the basis of psychological concepts (as for instance social norms and cultural coordinates), we deduce a general mechanism for the social aggregation in which different clusters of individuals can merge according to the cooperation among the agents. In their turn, the agents can cooperate or defect according to the clusters distribution inside the system. The fitness of an individual increases with the size of its cluster, but decreases with the work the individual had to do in order to join it. In order to test the reliability of such new approach, we introduce a couple of simple toy models with the features illustrated above. We see, from this preliminary study, how the cooperation is the most convenient strategy only in presence of very large clusters, while on the other hand it is not necessary to have one hundred percent of cooperators for reaching a totally ordered configuration with only one megacluster filling the whole system.
description: 18 pages, 10 figures
Probing the time variation of fine structure constant using galaxy clusters and quintessence model
Creators: name: Liu, Zhi-E
name: Liu, Wen-Fei
name: Zhang, Tong-Jie
name: Zhai, Zhong-Xu
name: Bora, Kamal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore a possible time variation of the fine structure constant ($α\equiv e^2/\hbar c$) using the Sunyaev-Zel'dovich effect measurements of galaxy clusters along with their X-ray observations. Specifically, the ratio of the integrated Compto-ionization parameter $Y_{SZ}D_A^2$ and its X-ray counterpart $Y_X$ is used as an observable to constrain the bounds on the variation of $α$. Considering the violation of cosmic distance duality relation, this ratio depends on the fine structure constant as $\sim α^3$. We use the quintessence model to provide the origin of $α$ time variation. In order to give a robust test on $α$ variation, two galaxy cluster samples, the 61 clusters provided by the Planck collaboration and the 58 clusters detected by the South Pole Telescope, are collected for analysis. Their X-ray observations are given by the XMM-Newton survey. Our results give $ζ=-0.203^{+0.101}_{-0.099}$ for the Planck sample and $ζ=-0.043^{+0.165}_{-0.148}$ for the SPT sample, indicating that $α$ is constant with redshift within $3σ$ and $1σ$ for the two samples, respectively.
description: 13 pages, 5 figures. Accepted by ApJ
New Scalar Fields in Noncommutative Geometry
Creators: name: Stephan, Christoph A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this publication we present an extension of the Standard Model within the framework of Connes' noncommutative geometry [1]. The model presented here is based on a minimal spectral triple [7] which contains the Standard Model particles, new vectorlike fermions and a new U(1) gauge subgroup. Additionally a new complex scalar field appears that couples to the right-handed neutrino, the new fermions and the standard Higgs particle. The bosonic part of the action is given by the spectral action [1] which also determines relations among the gauge couplings, the quartic scalar couplings and the Yukawa couplings at a cut-off energy of ca. 10^(17) GeV. We investigate the renormalisation group flow of these relations. The low energy behaviour allows to constrain the Higgs mass, the mass of the new scalar and the mixing between these two scalar fields.
description: Missing left-hand side of eq. (21) added. Some typos and normalisations in section 3 and 5.2 corrected
The phase diagram of two-dimensional fast-rotating ultra-cold fermionic atoms near unitarity
Creators: name: Nikolic, Predrag
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By analyzing vortex lattices, re-entrant Cooper pairing and Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states in a single theoretical framework we explore how vortices and spin textures join to protect superconductivity against large magnetic fields. We use a rapidly rotating ultra-cold gas of fermionic atoms near unitarity as a model system amenable to experimental exploration, and discover a hierarchy of spin-polarized and FFLO phases in which a metal or a band-insulator of unpaired particles coexists with a spatially modulated superfluid hosting a vortex lattice. Quantum fluctuations can transform these phases into strongly correlated "vortex liquid" metals and insulators respectively. We argue that vortex lattices significantly enhance the stability of FFLO states and discuss prospects for observing these states in cold atom experiments.
description: 10 pages, 10 figures, published version