cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Enhanced Learning for Restricted Hopfield Networks
Creators: name: Halabian, Faezeh
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Restricted Hopfield Networks
Recurrent Neural Network
SPSA training algorithm
Back propagation through time
Associative memory

description: This research investigates developing a training method for Restricted Hopfield Network (RHN) which is a subcategory of Hopfield Networks. Hopfield Networks are recurrent neural networks proposed in 1982 by John Hopfield. They are useful for different applications such as pattern restoration, pattern completion/generalization, and pattern association. In this study, we propose an enhanced training method for RHN which not only improves the convergence of the training sub-routine, but also is shown to enhance the learning capability of the network. Particularly, after describing the architecture/components of the model, we propose a modified variant of SPSA which in conjunction with back-propagation over time result in a training algorithm with an enhanced convergence for RHN. The trained network is also shown to achieve a better memory recall in the presence of noisy/distorted input. We perform several experiments, using various datasets, to verify the convergence of the training sub-routine, evaluate the impact of different parameters of the model, and compare the performance of the trained RHN in recreating distorted input patterns compared to conventional RBM and Hopfield network and other training methods.
On the weak field approximation of Brans-Dicke theory of gravity
Creators: name: Barros, A.
name: Romero, C.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is shown that in the weak field approximation solutions of Brans-Dicke equations are simply related to the solutions of General Relativity equations for the same matter distribution. A simple method is developed which permits to obtain Brans-Dicke solutions from Einstein solutions when both theories are considered in their linearized forms. To illustrate the method some examples found in the literature are discussed.
description: 12 pages, latex, no figures
title: Reporting Universitätsbibliothek Braunschweig: Report 2015: Berichtszeitraum: 01.01.2015 bis 31.12.2015
Creators: name: :None
Publisher: name: Technische Universität Braunschweig
Year: 2016
Subjects: subject: Technische Universität Braunschweig
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: 379

description: Reporting Universitätsbibliothek Braunschweig, vol. 2015
The collision of boosted black holes: second order close limit calculations
Creators: name: Gleiser, Reinaldo
name: Nicasio, Oscar
name: Price, Richard
name: Pullin, Jorge
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the head-on collision of black holes starting from unsymmetrized, Brill--Lindquist type data for black holes with non-vanishing initial linear momentum. Evolution of the initial data is carried out with the ``close limit approximation,'' in which small initial separation and momentum are assumed, and second-order perturbation theory is used. We find agreement that is remarkably good, and that in some ways improves with increasing momentum. This work extends a previous study in which second order perturbation calculations were used for momentarily stationary initial data, and another study in which linearized perturbation theory was used for initially moving holes. In addition to supplying answers about the collisions, the present work has revealed several subtle points about the use of higher order perturbation theory, points that did not arise in the previous studies. These points include issues of normalization, and of comparison with numerical simulations, and will be important to subsequent applications of approximation methods for collisions.
description: 20 pages, RevTeX, 6 figures included with psfig
Charging Ahead : Increasing UBC's Sustainable Mode Share with E-Bikes
Creators: name: Craig, Chelsea
name: Farias, Adriana Valentina
name: Park, Jimin
name: Kathuria, Pulkit
name: Pagnucco, Bruce
name: Pan, Charles
name: Wang, Xuerou
Publisher: name: The University of British Columbia
Year: 2020

description: UBC aims to achieve a sustainable mode share of 67% by 2040. Currently, 55% of trips to and from UBC are made by sustainable modes, with only 1.4% of trips made by bicycle. E-bikes could play a significant role in bridging this gap as they enable more people to switch from commuting by single-occupancy vehicle to a sustainable mode. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Noise-driven Synchronization in Coupled Map Lattices
Creators: name: Baroni, L.
name: Livi, R.
name: Torcini, A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Synchronization is shown to occur in spatially extended systems under the effect of additive spatio-temporal noise. In analogy to low dimensional systems, synchronized states are observable only if the maximum Lyapunov exponent $Λ$ is negative. However, a sufficiently high noise level can lead, in map with finite domain of definition, to nonlinear propagation of information, even in non chaotic systems. In this latter case the transition to synchronization is ruled by a new ingredient : the propagation velocity of information $V_F$. As a general statement, we can affirm that if $V_F$ is finite the time needed to achieve a synchronized trajectory grows exponentially with the system size $L$, while it increases logarithmically with $L$ when, for sufficiently large noise amplitude, $V_F = 0$ .
description: 11 pages, Latex - 6 EPS Figs - Proceeding LSD 98 (Marseille)
Kinetically Constrained Models with Random Constraints
Creators: name: Shapira, Assaf
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 82C22, 60K37

description: We study two kinetically constrained models in a quenched random environment. The first model is a mixed threshold Fredrickson-Andersen model on $\mathbb{Z}^{2}$, where the update threshold is either $1$ or $2$. The second is a mixture of the Fredrickson-Andersen $1$-spin facilitated constraint and the North-East constraint in $\mathbb{Z}^{2}$. We compare three time scales related to these models - the bootstrap percolation time for emptying the origin, the relaxation time of the kinetically constrained model, and the time for emptying the origin of the kinetically constrained model - and understand the effect of the random environment on each of them.
Equilibrium of Spheres with Local Anisotropy in Postnewtonian Gravity. Application to White Dwarfs
Creators: name: Corchero, E. S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Static solutions of white dwarfs with spherical symmetry and local anisotropy are studied in the post-Newtonian approximation. It is argued that the condition for equilibrium must be that the total energy is a minimum for given baryon number and the question whether there is local isotropy or anisotropy inside the star should follow from that condition, rather than be postulated "a priori". It is shown show that, in post-Newtonian gravity, there are stable configurations with local anisotropy for masses above the Chandrasekhar limit.
Retrodiction with two-level atoms: atomic previvals
Creators: name: Jeffers, John
name: Barnett, Stephen M.
name: Pegg, David T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the Jaynes-Cummings model a two-level atom interacts with a single-mode electromagnetic field. Quantum mechanics predicts collapses and revivals in the probability that a measurement will show the atom to be excited at various times after the initial preparation of the atom and field. In retrodictive quantum mechanics we seek the probability that the atom was prepared in a particular state given the initial state of the field and the outcome of a later measurement on the atom. Although this is not simply the time reverse of the usual predictive problem, we demonstrate in this paper that retrodictive collapses and revivals also exist. We highlight the differences between predictive and retrodictive evolutions and describe an interesting situation where the prepared state is essentially unretrodictable.
description: 15 pages, 3 (5) figures
A Fast, Spectrally Accurate Homotopy Based Numerical Method For Solving Nonlinear Differential Equations
Creators: name: Cullen, Andrew C.
name: Clarke, Simon R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We present an algorithm for constructing numerical solutions to one--dimensional nonlinear, variable coefficient boundary value problems. This scheme is based upon applying the Homotopy Analysis Method (HAM) to decompose a nonlinear differential equation into a series of linear differential equations that can be solved using a sparse, spectrally accurate Gegenbauer discretisation. Uniquely for nonlinear methods, our scheme involves constructing a single, sparse matrix operator that is repeatedly solved in order to solve the full nonlinear problem. As such, the resulting scheme scales quasi-linearly with respect to the grid resolution. We demonstrate the accuracy, and computational scaling of this method by examining a fourth-order nonlinear variable coefficient boundary value problem by comparing the scheme to Newton-Iteration and the Spectral Homotopy Analysis Method, which is the most commonly used implementation of the HAM.
On the Asserted Clash between the Freud and the Bianchi Identities
Creators: name: Antoci, S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Through a constructive method it is shown that the claim advanced in recent times about a clash that should occur between the Freud and the Bianchi identities in Einstein's general theory of relativity is based on a faulty argument.
description: 4 pages, plain Tex
On the Effect of Low Temperatures on the Maximum Output Power of a Coherent Erbium Doped Fiber Amplifier
Creators: name: Gouët, Julien Le
name: Oudin, Jérémy
name: Perault, Philippe
name: Abbes, Alaeddine
name: Odier, Alice
name: Dubois, Alizée
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The influence of low temperatures on the performance of a high-power single-frequency fiber laser amplifier is evaluated with a numerical simulation. Cooling the fiber can allow to take advantage of both higher damping of the acoustic waves in the silica glass, and higher laser efficiency. We first report on the measurement of the stimulated Brillouin scattering (SBS) threshold in a silica fiber as a function of the temperature from 300~K down to 77~K. We then present the measurements of small-signal absorption and gain spectra of an erbium doped alumino-phosphosilicate fiber, at room temperature and liquid nitrogen temperature. Based on these data, we derive a numerical study of the combined effects of cooling on the SBS threshold and the amplifier efficiency, and conclude on the interest of this technique for SBS limited high power Er doped fiber amplifiers (EDFA). The temperature increase caused by the pump laser in the fiber core is also addressed.
Brane Vacuum as Chain of Rotators
Creators: name: Donets, E. E.
name: Isaev, A. P.
name: Sochichiu, C.
name: Tsulaia, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We analyse the noncommutative U(1) sigma model, which arises from the vacuum dynamics of the noncommutative charged tachyonic field. The sector of ``spherically symmetric'' excitations of the model is equivalent to a chain of rotators. Classical solutions for this model are found, which are static and ``spherically symmetric'' in noncommutative spatial dimensions. The limit of small noncommutativity reveals the presence of Polyakov vortices in the model. A generalisation of the model to q-deformed space, which may serve as a regularisation of the non-deformed model is also considered.
description: 14 pages, JHEP class, no figs, considerable revision of the motivational part, some improvement of text and references, accepted in JHEP
Analyzing different prototype selection techniques for dynamic classifier and ensemble selection
Creators: name: Cruz, Rafael M. O.
name: Sabourin, Robert
name: Cavalcanti, George D. C.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In dynamic selection (DS) techniques, only the most competent classifiers, for the classification of a specific test sample are selected to predict the sample's class labels. The more important step in DES techniques is estimating the competence of the base classifiers for the classification of each specific test sample. The classifiers' competence is usually estimated using the neighborhood of the test sample defined on the validation samples, called the region of competence. Thus, the performance of DS techniques is sensitive to the distribution of the validation set. In this paper, we evaluate six prototype selection techniques that work by editing the validation data in order to remove noise and redundant instances. Experiments conducted using several state-of-the-art DS techniques over 30 classification problems demonstrate that by using prototype selection techniques we can improve the classification accuracy of DS techniques and also significantly reduce the computational cost involved.
Impacto de la atención familiar en el desempeño académico en estudiantes universitarios
Creators: name: Aguirre -Rodríguez, Jaime
name: Torralba- Chávez, Efraín
name: Ortega-Juárez, Eva Aurora
Publisher: name: Zenodo
Year: 2019
Subjects: Comunicación
Desempeño académico
Atención familiar

description: El objetivo de la investigación fue analizar el impacto de la atención familiar en el rendimiento académico del estudiante universitario, se realizó un estudio de carácter exploratorio-descriptivo que consistió en la indagación y análisis de los datos recolectados a partir de una encuesta aplicada, a una muestra de 338 alumnos, de un total de población 2,773 alumnos de la modalidad presencial del semestre enero-Junio 2018, de los semestres de 2° a 9°semestre, de la Facultad de Contaduría y Administración (FCA) campus Chihuahua, de la Universidad Autónoma de Chihuahua (UACH). La investigación fue de tipo básica, el carácter no experimental, de tipo descriptiva, el diseño fue transeccional descriptivo, el método utilizado fue de campo con apoyo documental, aplicando una encuesta. Los principales resultados muestran que el 50% de sus problemas los platican a sus padres y el 37% a sus amigos, las pláticas con sus padres son frecuentes el 39% a diario y el 33% cada semana, de acuerdo con su decir el 72% trae un promedio de 80 a 95. De acuerdo con los resultados, se recomienda que la Facultad realice actividades de puertas abiertas, se impartan cursos de valores, se cree un buzón de sugerencias virtual. Palabras clave: Comunicación, desempeño académico, atención familiar.
Modelling Quantum Mechanics by the Quantumlike Description of the Electric Signal Propagation in Transmission Lines
Creators: name: Fedele, R.
name: Man'ko, M. A.
name: Man'ko, V. I.
name: Vaccaro, V. G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that the transmission line technology can be suitably used for simulating quantum mechanics. Using manageable and at the same time non-expensive technology, several quantum mechanical problems can be simulated for significant tutorial purposes. The electric signal envelope propagation through the line is governed by a Schrodinger-like equation for a complex function, representing the low-frequency component of the signal, In this preliminary analysis, we consider two classical examples, i.e. the Frank-Condon principle and the Ramsauer effect.
Doping-induced insulator-metal transition in the Lifshitz magnetic insulator NaOsO3
Creators: name: Dobrovits, Sabine
name: Kim, Bongjae
name: Reticcioli, Michele
name: Toschi, Alessandro
name: Khmelevskyi, Sergii
name: Franchini, Cesare
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By means of first principles schemes based on magnetically constrained density functional theory and on the band unfolding technique we study the effect of doping on the conducting behaviour of the Lifshitz magnetic insulator NaOsO3. Electron doping is treated realistically within a supercell approach by replacing sodium with magnesium at different concentrations. Our data indicate that by increasing carrier concentration the system is subjected to two types of transition: (i) insulator to bad metal at low doping and low temperature and (ii) bad metal to metal at high doping and/or high-temperature. The predicted doping-induced insulator to metal transition (MIT) has similar traits with the temperature driven MIT reported in the undoped compound. Both develops in an itinerant background and exhibit a coupled electronic and magnetic behaviour characterized by the gradual quenching of the (pseudo)-gap associated with an reduction of the local spin moment. Unlike the temperature-driven MIT, chemical doping induces substantial modifications of the band structure and the MIT cannot be fully described as a Lifshitz process.
description: 5 pages, 4 figures
title: Verhandlungen der Stadtverordneten zu Braunschweig im Jahre 1872
Creators: name: :None
Publisher: name: Universitätsbibliothek Braunschweig
Year: 1872
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Stadt Braunschweig
subject: Stadtverordnete
subject: Versammlung
subject: 902

description: Verhandlungen der Stadtverordneten zu Braunschweig, vol. 1872
Youth participation in child welfare decision making: A focused ethnography
Creators: Augsberger, Astraea
Publisher: name: Columbia University
Year: 2013
Subjects: Social service

description: This dissertation examines youth participation in child welfare decision-making in the context of permanency planning family team conferences. It explores the factors that influence youth attendance and participation in decision-making opportunities. It also examines the strategies conference facilitators use to engage youth in decision-making in permanency planning family team conferences. The study employed a focused ethnography design, characterized by relatively short-term field visits, intensive data collection and intensive data analysis. Data collection included observations of permanency planning family team conferences, followed by in-depth interviews with young people and conference facilitators. Grounded theory conventions for data analysis, including initial coding, focused coding, theoretical coding, and analytic memos, were used. Data analysis focused on gaining a deeper understanding of how youth are incorporated into decision-making procedures, including a comparison of youth and conference facilitators' perceptions and experiences. It also explored the specific strategies facilitators used to engage youth in decision-making at the family team conference. The study findings demonstrate that youth attendance and participation in child welfare decision-making opportunities are influenced by the degree of relationship between youth and agency staff. Youth in the study valued workers who provided them with a combination of instrumental and emotional support. Factors that facilitated the development of a positive relationship with agency staff included, case continuity, non-judgmental listening, establishing trust, and transcending roles. Regarding facilitator engagement strategies, findings revealed two different facilitation styles: adult centric and youth centric. Adult centric facilitation placed adults at the center of decision making by failing to engage youth, silencing the youth voice, adopting the adult narrative, and going through the motions. Youth centric facilitation placed youth at the center of decision making by establishing trust, encouraging youth to speak, adapting the youth narrative, and demonstrating genuine care and concern. The facilitation styles are demonstrated through case illustrations and examples. The study's policy and practice implications, limitations and areas of further research are presented.
Youth-driven action, participatory planning, and the attainment of Sustainable Development Goals in Tunisian cities
Creators: Sellami, Zeineb
Publisher: name: Columbia University
Year: 2021
Subjects: City planning--Citizen participation
Sustainable development--Planning
Arab Spring (2010-)
Youth movements

description: The purpose of this research is to evaluate how youth-driven initiatives and participatory planning within municipalities affect the attainment of the United Nations Sustainable Development Goals for 2030 at the grassroots, municipal, and national levels. The research focuses on post-revolution Tunisia and the changes that have occurred since the Arab Spring transformed the MENA region in 2011. It begins by exploring the SDGs as global frameworks, where attainment is measured at the national level but whose goals are prescribed in more localized contexts, with cities playing a key role. The study then questions the effectiveness of post-revolution decentralization policies on municipal projects and participatory mechanisms. Finally, this thesis explores the advent of multiplying youth-driven grassroots initiatives that, deliberately or unknowingly, align with global sustainability goals. In addition to archival research on the SDGs and Tunisian municipal structures, the research employs semi-structured interviews allowing for a more in-depth view of the situation at the local level. Interviewees include experts from the UNDP, private sector, international organizations, municipal decision-makers, and youth leaders that spearhead initiatives across their neighborhoods. The aim is to shed light on the rarely discussed role of youth at the intersection of local and global planning frameworks through this Tunisian case-study. Where most research studies focus on a single one of the aforementioned topics, this thesis brings together three levels of inquiry: the global, the national, and the local to shed light onto the complex dynamics that spur and determine planning outcomes in Tunisia’s post-revolutionary context.
The Effect of Smoking Duration Use of Kesambi Leaf BiobriquetteProcessed Torrefaction on Cooking Shrinkage and Characteristics Organoleptic Sei's Meat
Creators: name: J. S. Dethan, Jemmy
Publisher: name: Zenodo
Year: 2023

description: Study this aim for knowledge of the influence of smoking time, usebiobriquettes of leaf kesambi torrefied against shrinking, as well as thecharacteristics of organoleptic colour and texture of sei meat. The study used arandom design complete with durations of 60 minutes, 90 minutes, and 120minutes. Meat weighs 8 kg, is sliced transversely 2-3 cm thick, and is soakedwith 16 grams of salt, 2.4 grams of saltpetre, and 2 cloves of white onion. Themeat was then hushed up for 2 hours inside a Sokal (a basket made of palmleaves) and closed thermocouple meat entered into meat For measuring internaltemperature. Temperature room smoking is guarded between 100°C and 150°Cand controlled by four thermocouple sensors. The internal temperature of meatis monitored between 63°C and 77°C. Analysis results show that old curing isinfluential in shrinking Cook's meat. shrink cooks highest found in the longsmoking treatment of 60 minutes (22.96%), and no different with the long curingtreatment of 90 minutes. The curing time also affects the colour and textureparameters. Long smoking treatment of 60 minutes No different real with a longsmoking treatment of 90 minutes, however different real with a long smokingtreatment of 120 minutes. The highest colour parameter value was obtained inthe long smoking treatment of 60 minutes (4.50), while the lowest value wasobtained in the long smoking treatment of 120 minutes (3.70). The highest colourscore was achieved in the long smoking treatment of 60 minutes (4.57), and thelowest score was obtained in the long smoking treatment of 120 minutes (3.33).Long smoking affects shrinkage as well as characteristic organoleptic colour andtexture. The treatment that works best is the long smoking time of 60 minutes,which produces shrinkage of 8.6430% as well as colour and texture.
Zimbabwe Ruins: Claims of responsibility within speculations on psycho-social experiences of exile and diaspora
Creators: Reilly, Leigh Ann
Publisher: name: Columbia University
Year: 2011
Subjects: Education
History
Africans

description: The Crisis' in Zimbabwe, which in significant part began in 2000 with the appropriation of white owned commercial farms, is political, economic and  psycho-social, and has resulted in major upheavals and catastrophic changes to Zimbabwean society.  The researcher investigates from an autobiographical and speculative point of view what it means to live in and after such a crisis by considering the experiences of loss, mourning and melancholia as they relate to the kind of exilic existence experienced by many Zimbabweans as a result of 'the Crisis'.  This kind of exile has been called "internal" and "external" (2007) exile by the Zimbabwean poet Chenjerai Hove, by which he means that those still living in the country under the Mugabe regime are living in conditions of exile emotionally, psychically and psychologically just as those in the diaspora, numbering three million or a quarter of the population, are living in conditions of physical and geographic exile.  The researcher uses 'the Crisis' as a site of inquiry into considerations of individual and collective responsibility as a possible response to the emotional, geographic, and existential rupture caused by crisis. This study, which is partly autobiographical, but also historical and political, takes a speculative and conceptual approach to understanding effects of 'the Crisis'.  The hybridized methods of writing as inquiry (Richardson, 2000), speculative essay as philosophical inquiry (Schubert, 1991), and autobiography as a form of narrative research, allow the researcher to articulate, meditate and speculate on questions regarding loss, temporality, mourning, melancholia and nostalgia, community, and responsibility from a position of personal interpretation, while accepting that those interpretations are fractured, partial and biased. The study proposes responsibility as one possible response to 'the Crisis' and suggests five claims of responsibility as avenues to open up considerations of how one possibly could respond to such formative experiences.  The five claims are: return, melancholia and reflective nostalgia (Boym, 2001), art, learning, and community.  These claims are drawn directly in relation to the researcher's interpretations of 'The Crisis' and so are not meant to be seen as normative but rather as suggestive.  The recent scholarship that has been produced in response to 'the Crisis' has predominantly focused on logistical and practical concerns; this researcher establishes that psycho-social considerations of how one experiences crisis and could live with/in it are of equal importance to the scholarship of 'the Crisis' in Zimbabwe.
Boundary behaviours of open vesicles in axisymmetric case
Creators: name: Zhou, Xiaohua
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A continuous transformation from a closed vesicle to an open vesicle needs that the area of open hole enlarge from zero. Since the shape equation and boundary conditions of lipid open vesicles with free edges have been obtained, we want know whether this process can be archived with valid parameters. By study the boundary conditions in the axisymmetric case, the analytic expression of the boundary edges is obtained generally. It reveals that the radius and line tension of boundary edges are confined strongly by bending moduli. In some cases, there is the minimal nonzero boundary radius and the line tension needs to surmount the maxim following the increase of boundary radius. Without the spontaneous curvature, the line tension will trend to infinite when the boundary radius shrinks to zero. The continuous opening process from a closed vesicle to an open vesicle needs that the spontaneous curvature is nonzero and the ratio between the bending moduli of Gauss curvature and mean curvature satisfies $k\leq-4$. Besides the line tension, a closed vesicle can be opened through changing the spontaneous curvature.
description: 7 pages, 6 figures
Light bending and perihelion precession: A unified approach
Creators: name: Brill, Dieter R.
name: Goel, Deepak
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The standard General Relativity results for precession of particle orbits and for bending of null rays are derived as special cases of perturbation of a quantity that is conserved in Newtonian physics, the Runge-Lenz vector. First this method is applied to give a derivation of these General Relativity effects for the case of the spherically symmetric Schwarzschild geometry. Then the lowest order correction due to an angular momentum of the central body is considered. The results obtained are well known, but the method used is rather more efficient than that found in the standard texts, and it provides a good occasion to use the Runge-Lenz vector beyond its standard applications in Newtonian physics.
description: 9 pages, LaTeX (Revtex). Submitted to Am. J. Phys
Yvette and the Wild Shame
Creators: Bassett, Alexandra Aliki
Publisher: name: Columbia University
Year: 2014
Subjects: Theater

description: Yvette and the Wild Shame was first produced by Columbia University at The Pershing Square Signature Center in New York City on April 12, 2014. It was directed by Tasha Gordon-Solmon. The cast was as follows: Matthew McDonald - Footman, Sean McIntyre - Maximus, Becca L. McLarty - Julie, Michael Micalizzi - Wilderness Boy, Adam Thomas Smith - Footman, Jen Taher - Cheryl, Lindsay Torrey - Yvette. The lighting design was by Carolyn Wong; the costume design was by Summer Lee Jack; the sound design was by Ien DeNio; the set and props design was by Aaron Ethan Green; the music was composed by the author; the production stage manager was Michael Tosto; the stage manager was Alexandra Hall, the director of production was Joe Novak.
title: Aves Braunschweig - 7. Jahrgang (2016)
Creators: name: :None
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2016
Subjects: subject: Vögel
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Biologie
subject: 598

description: Aves Braunschweig: Mitteilungen der Avifaunistischen Arbeitsgemeinschaft Südostniedersachsen, AviSON im NABU-Landesverband Niedersachsen, vol. 7. 2016
title: Verhandlungen der Stadtverordneten zu Braunschweig im Jahre 1889
Creators: name: :None
Publisher: name: Waisenhaus-Buchdruckerei
Year: 1889
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Stadtverordnete
subject: Versammlung
subject: Stadt Braunschweig
subject: 902

description: Verhandlungen der Stadtverordneten zu Braunschweig, vol. 1889
Spherical Self-Similar Solutions in Einstein-Multi-Scalar Gravity
Creators: name: Hirschmann, Eric W.
name: Wang, Anzhong
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a general non-linear sigma model coupled to Einstein gravity and show that in spherical symmetry and for a simple realization of self-similarity, the spacetime can be completely determined. We also examine some more specific matter models and discuss their relation to critical collapse.
description: 11 pages, 1 figure
Additional file 5: of Development of a highly efficient Axiom™ 70 K SNP array for Pyrus and evaluation for high-density mapping and germplasm characterization
Creators: name: Montanari, Sara
name: Bianco, Luca
name: Allen, Brian
name: Martínez-García, Pedro
name: Bassil, Nahla
name: Postman, Joseph
name: Knäbel, Mareike
name: Biff Kitson
name: Deng, Cecilia
name: Chagné, David
name: Crepeau, Marc
name: Langley, Charles
name: Evans, Kate
name: Dhingra, Amit
name: Troggio, Michela
name: Neale, David
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Distribution of the SNPs of the Axiom™ 70 K Pear Genotyping Array on the pear genomes. The number of SNPs in 500 Kbp bins was plotted over each chromosome length for the P. communis ‘Bartlett’ v1.1 [32, 54] (on top) and the P. x bretschneideri ‘Dangshansuli’ [55] (on the bottom) genomes. The red dashed lines show the average number of SNPs per bin for each chromosome. The table in the center reports the total number of SNPs uniquely aligned to each chromosome (chr) of the two genomes, as well as those aligned to unanchored scaffolds (0). (PDF 174 kb)
Victoria Police Department charge book (August 1877-November 1878)
Creators: name: Victoria (B.C.). Police Department
Publisher: name: University of Victoria Libraries
Year: 2024
Subjects: subject: Police
valueUri: http://id.worldcat.org/fast/1068398
subject: Police administration
valueUri: http://id.worldcat.org/fast/1068547
subject: Indictments
valueUri: http://id.worldcat.org/fast/970199
subject: Criminal records
valueUri: http://id.worldcat.org/fast/1728221
subject: Law enforcement
valueUri: http://id.worldcat.org/fast/993931
subject: Local history
valueUri: http://id.worldcat.org/fast/1001400
subject: Crime
valueUri: http://id.worldcat.org/fast/882984
subject: Police--Records and correspondence
valueUri: http://id.worldcat.org/fast/1068498
subject: History
valueUri: http://id.worldcat.org/fast/958235

description: Police charge book, used to record the date, name and charge, remand, and conviction or order to trial of persons charged with a crime.
title: Verhandlungen der Stadtverordneten zu Braunschweig im Jahre 1890
Creators: name: :None
Publisher: name: Waisenhaus-Buchdruckerei
Year: 1890
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Stadtverordnete
subject: Versammlung
subject: Stadt Braunschweig
subject: 902

description: Verhandlungen der Stadtverordneten zu Braunschweig, vol. 1890
Experimental investigation of continuous variable quantum teleportation
Creators: name: Bowen, Warwick P.
name: Treps, Nicolas
name: Buchler, Ben C.
name: Schnabel, Roman
name: Ralph, Timothy C.
name: Bachor, Hans -A.
name: Symul, Thomas
name: Lam, Ping Koy
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report the experimental demonstration of quantum teleportation of the quadrature amplitudes of a light field. Our experiment was stably locked for long periods, and was analyzed in terms of fidelity, F; and with signal transfer, T_{q}=T^{+}+T^{-}, and noise correlation, V_{q}=V_{in|out}^{+} V_{in|out}^{-}. We observed an optimum fidelity of 0.64 +/- 0.02, T_{q}= 1.06 +/- 0.02 and V_{q} =0.96 +/- 0.10. We discuss the significance of both T_{q}>1 and V_{q}<1 and their relation to the teleportation no-cloning limit.
description: 4 pages, 4 figures
Spherical Black Holes cannot Support Scalar Hair
Creators: name: Sudarsky, D.
name: Zannias, T.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The static spherically symmetric ``black hole solution" of the Einstein - conformally invariant massless scalar field equations known as the BBMB ( Bocharova, , Bronikov, Melinkov, Bekenstein) black hole is critically examined. It is shown that the stress energy tensor is ill-defined at the horizon, and that its evaluation through suitable regularization yields ambiguous results. Consequently, the configuration fails to represent a genuine black hole solution. With the removal of this solution as a counterexample to the no hair conjecture, we argue that the following appears to be true: Spherical black holes cannot carry any kind of classical scalar hair.
description: Simple Tex
Zonal flow driven by convection and convection driven by internal heating
Creators: Goluskin, David
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Mathematics
subject: FOS: Mathematics

description: In the first part, Rayleigh-Benard convection is studied in a two-dimensional, horizontally periodic domain with free-slip top and bottom boundaries. This configuration encourages mean horizontal flows of zero horizontal wavenumber, which we study as an idealization of zonal flows in tokamaks, planetary atmospheres, and annular cylindrical convection experiments. These systems often satisfy free-slip conditions on at least one boundary and are approximately two-dimensional. Stable steady states with zonal flow are found for Prandtl numbers up to 0.3. Stable and unstable steady states with horizontal periods up to six times the layer height are computed for a Prandtl number of 0.1 and Rayleigh numbers, Ra, up to 2*10^5. Concurrently stable states with and without zonal flow are found where the state without zonal flow convects heat over 10 times faster. Steady zonal flow arises subcritically whenever the horizontal period is not forced to be narrow, contrary to most prior predictions by truncated models. Steady states and their bifurcations are studied in a truncated model that does predict subcriticality. Direct numerical simulations are performed with a horizontal period twice the layer height, Prandtl numbers between 1 and 10, and Ra between 5*10^5 and 2*10^8.. Zonal flow arises subcritically as Ra is raised but is seen in all quasi-steady states at large Ra. The fraction of the total kinetic energy comprised by zonal flow approaches unity as Ra grows. At a Prandtl number of 1, vertical convective heat transport occurs in temporal bursts, nearly vanishing in between, and is non-monotonic in Ra. At Prandtl numbers of 3 and 10, convective transport at no time nearly vanishes, and time-averaged Nusselt numbers scale as Ra^0.077 and Ra^0.19, respectively. Both growth rates are below the range accepted for Rayleigh-Benard convection without zonal flow. In the second part, two-dimensional direct numerical simulations are conducted for convection sustained by uniform internal heating in a horizontal fluid layer. Top and bottom boundary temperatures are fixed and equal. Prandtl numbers range from 0.01 to 100. A control parameter, R, that is similar to the usual Rayleigh number is varied up to 5*10^5 times its critical value at the onset of convection. The asymmetry between upward and downward heat fluxes is non-monotonic in R. In a broad high-R regime, dimensionless mean temperature scales as R^-1/5. We discuss the scaling of mean temperature and heat-flux-asymmetry, which we find to be better diagnostic quantities than the conventionally used top and bottom Nusselt numbers.
Local suppression and enhancement of pairing condensate under rotation
Creators: name: Wang, Lingxiao
name: Jiang, Yin
name: He, Lianyi
name: Zhuang, Pengfei
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The rotation induced inhomogeneous problem is non-trivial and inevitable. In this paper a generic framework is developed to investigate the inhomogeneous condensate in a system of fermions under the presence of rotation. It is a self-consistent method basing on a set of relativistic BdG equations solved with typical iteration algorithm. Taking the chiral condensate for example we study rotational effects numerically and discover two inhomogeneous effects, the local rotational suppression effect and centrifugal effect. They may have significant impacts on the phase structure of various kinds of matter. Several systems in different physics branches have been discussed in the paper.
description: 5 pages, 3 figures
Ringing the eigenmodes from compact manifolds
Creators: name: Cornish, Neil J.
name: Turok, Neil G.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a method for finding the eigenmodes of the Laplace operator acting on any compact manifold. The procedure can be used to simulate cosmic microwave background fluctuations in multi-connected cosmological models. Other applications include studies of chaotic mixing and quantum chaos.
description: 11 pages, 8 figures, IOP format. To be published in the proceedings of the Cleveland Cosmology and Topology Workshop 17-19 Oct 1997. Submitted to Class. Quant. Grav
title: Verhandlungen der Stadtverordneten zu Braunschweig im Jahre 1891
Creators: name: :None
Publisher: name: Waisenhaus-Buchdruckerei
Year: 1891
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Stadtverordnete
subject: Versammlung
subject: Stadt Braunschweig
subject: 902

description: Verhandlungen der Stadtverordneten zu Braunschweig, vol. 1891
The concavity of $p$-entropy power and applications in functional inequalities
Creators: name: Wang, Yu-Zhao
name: Zhang, Xinxin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35K92, 58J35

description: In this paper, we prove the concavity of $p$-entropy power of probability densities solving the $p$-heat equation on closed Riemannian manifold with nonnegative Ricci curvature. As applications, we give new proofs of $L^p$-Euclidean Nash inequality and $L^p$-Euclidean Logarithmic Sobolev inequality, moreover, an improvement of $L^p$-Logarithmic Sobolev inequality is derived.
description: 16 pages
title: Verhandlungen der Stadtverordneten zu Braunschweig im Jahre 1892
Creators: name: :None
Publisher: name: Waisenhaus-Buchdruckerei
Year: 1892
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Stadtverordnete
subject: Versammlung
subject: Stadt Braunschweig
subject: 902

description: Verhandlungen der Stadtverordneten zu Braunschweig, vol. 1892
Ghost orbits in the diamagnetic hydrogen spectrum using harmonic inversion
Creators: name: Gremaud, Benoit
name: Delande, Dominique
Publisher: name: arXiv
Year: 1999
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The harmonic inversion method is applied in the case of the hydrogen atom in a magnetic field to extract classical information from the quantum photo-ionization cross-section. The study is made close to a saddle-node bifurcation for which the usual semi-classical formulas give diverging contributions. All quantities (actions, stabilities and Maslov indices) for real orbits above the bifurcation and for complex ghost orbits below the bifurcation, are found to be in excellent agreement with the modified semi-classical predictions based on a normal form approach.
description: Revtex, 24 pages with 8 figures, submitted to Phys. Rev. A
A priori probability that two qubits are unentangled
Creators: name: Slater, Paul B.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a previous study (quant-ph/9911058), several remarkably simple exact results were found, in certain specialized m-dimensional scenarios (m<5), for the a priori probability that a pair of qubits is unentangled/separable. The measure used was the volume element of the Bures metric (identically one-fourth the statistical distinguishability [SD] metric). Here, making use of a newly-developed (Euler angle) parameterization of the 4 x 4 density matrices (math-ph/0202002), we extend the analysis to the complete 15-dimensional convex set (C) of arbitrarily paired qubits -- the total SD volume of which is known to be π^8 / 1680 = π^8 / (2^4 3 5 7) = 5.64794. Using advanced quasi-Monte Carlo procedures (scrambled Halton sequences) for numerical integration in this high-dimensional space, we approximately (5.64851) reproduce that value, while obtaining an estimate of .416302 for the SD volume of separable states. We conjecture that this is but an approximation to π^6 /2310 = π^6 / (2 3 5 7 11) = .416186. The ratio of the two volumes, 8 / (11 π^2) = .0736881, would then constitute the exact Bures/SD probability of separability. The SD area of the 14-dimensional boundary of C is 142 π^7 / 12285 = 142 π^7 /(3^3 5 7 13) = 34.911, while we obtain a numerical estimate of 1.75414 for the SD area of the boundary of separable states.
description: seven pages, LaTeX, minor revisions, to appear in Quantum Information Processing
Critical phenomena in gravitational collapse (review paper)
Creators: name: Gundlach, Carsten
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: As first discovered by Choptuik, the black hole threshold in the space of initial data for general relativity shows both surprising structure and surprising simplicity. Universality, power-law scaling of the black hole mass, and scale echoing have given rise to the term "critical phenomena". They are explained by the existence of exact solutions which are attractors within the black hole threshold, that is, attractors of codimension one in phase space, and which are typically self-similar. This review gives an introduction to the phenomena, tries to summarize the essential features of what is happening, and then presents extensions and applications of this basic scenario. Critical phenomena are of interest particularly for creating surprising structure from simple equations, and for the light they throw on cosmic censorship. They may have applications in quantum black holes and astrophysics.
description: 46 p. Latex. Many minor corrections and extensions. To appear in Adv. Theor. Math. Phys