cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Neoliberal governmentality and school choice in Japan : the role of school principals
Creators: name: Hayase, Michiyo
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study is to understand the ways in which the school choice programs are implemented in Japan, by focusing on the role of junior high school principals who are one of the key actors in the education system. In particular, the study sought to answer the following question: How do principals in large-scale and small-scale public junior high schools respond to school choice programs in Japan? Drawing upon the concept of neoliberal governmentality used by Larner (2000) and Brown (2003), this research looks at how principals work as neoliberal subjects in managing market-driven school choice programs within the public junior high school system in Japan. The bulk of my data comes from semi-structured interviews with five principals in Tokyo and Saitama. This study finds that three principals (from two large-scale and one small- scale schools) articulate their views about school choice clearly. In particular, one principal of an large-scale school advocates school choice, and his opinions are in line with predominant narratives in the school choice literature in Japan, regarding school choice as the incentive for teachers to work hard and for the creation of distinctive schools. Two principals’ views are more ambivalent. While they are in favor of general notions such as freedom of choice, they are against school choice in a practical sense, especially in reference to the predicaments that a principal of a small-scale school experiences. In terms of their actions, principals can be categorized into active and passive groups. Active principals of two large-scale and one small-scale schools incorporate endeavors to open up their schools to the community and primary school students and to improve students’ academic performance. Passive principals of two small-scale principals, in contrast, do not pursue specific activities. Instead, they make the most of their given situation, their small school size. One of them tries to resist school choice programs. In sum, the introduction of the school choice program that is based on the market principle has the potential for changing the meaning of public education that puts emphasis on holistic education into the one that is centered around market values.
Lowest-ID with Adaptive ID Reassignment: A Novel Mobile Ad-Hoc Networks Clustering Algorithm
Creators: name: Gavalas, Damianos
name: Pantziou, Grammati
name: Konstantopoulos, Charalampos
name: Mamalis, Basilis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Clustering is a promising approach for building hierarchies and simplifying the routing process in mobile ad-hoc network environments. The main objective of clustering is to identify suitable node representatives, i.e. cluster heads (CHs), to store routing and topology information and maximize clusters stability. Traditional clustering algorithms suggest CH election exclusively based on node IDs or location information and involve frequent broadcasting of control packets, even when network topology remains unchanged. More recent works take into account additional metrics (such as energy and mobility) and optimize initial clustering. However, in many situations (e.g. in relatively static topologies) re-clustering procedure is hardly ever invoked; hence initially elected CHs soon reach battery exhaustion. Herein, we introduce an efficient distributed clustering algorithm that uses both mobility and energy metrics to provide stable cluster formations. CHs are initially elected based on the time and cost-efficient lowest-ID method. During clustering maintenance phase though, node IDs are re-assigned according to nodes mobility and energy status, ensuring that nodes with low-mobility and sufficient energy supply are assigned low IDs and, hence, are elected as CHs. Our algorithm also reduces control traffic volume since broadcast period is adjusted according to nodes mobility pattern: we employ infrequent broadcasting for relative static network topologies, and increase broadcast frequency for highly mobile network configurations. Simulation results verify that energy consumption is uniformly distributed among network nodes and that signaling overhead is significantly decreased.
description: 5 pages, 4 figures; Proceedings of the 1st IEEE International Symposium on Wireless Pervasive Computing (ISWPC'2006)
Global Governance of Human Germline Editing: A Statement by the Marsilius Winter School Participants
Creators: name: Conditi, Noemi
name: Hansen, Julia
name: Seeger, Leon
name: Ni, Yang
name: Scharf, Pia
name: Tandoh, Andoh Cletus
name: Tsuchida, Connor
name: Yeh, Charles
Publisher: name: Forum Marsilius-Kolleg
Year: 2020

description: Germline editing is a technique that holds immense potential to affect our current society and future generations. Not to be confused with somatic gene therapy, human germline editing involves the application of molecular biological methods, such as CRISPR/Cas9, to edit the genome of germline cells. These edits can then be passed on to future generations. While this technique is very promising to eradicate hereditary diseases and even possibly improve certain traits of the human genome, its use remains highly debated. “Global governance of human germline editing” was the topic of the Marsilius Winter School 2018, which brought together a group of young academics from a variety of disciplines to discuss the issues raised by the potential application of this technology.[1] In a one-week program, experts were invited to present on different aspects of germline genome editing and its governance to the participants of the winter school. The participants worked together to develop a joint position on global governance of human germline editing which is presented in this paper. Overall, a consensus was reached on advising to allow germline genome editing for research and possibly for medical applications under specifically defined circumstances, including an informed public opinion. [1] The winter school took place before the first claims of successful germline editing by Jian-kui He became public.
description: Forum Marsilius-Kolleg, Bd. 18 (2020)
Evidence for speed-dependent effects in NH3 self-broadened spectra: towards a new determination of the Boltzmann constant
Creators: name: Triki, Meriam
name: Lemarchand, Cyril
name: Darquié, Benoît
name: Sow, Papa Lat Tabara
name: Roncin, Vincent
name: Chardonnet, Christian
name: Daussy, Christophe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we present an accurate analysis of the shape of an isolated rovibrational ammonia line from the strong nu2 band around 10 $μ$m, recorded by laser absorption spectroscopy. Experimental spectra obtained under controlled temperature and pressure, are confronted to various models that take into account Dicke narrowing or speed-dependent effects. Our results show clear evidence for speed-dependent broadening and shifting, which had never been demonstrated so far in NH3. Accurate lineshape parameters of the nu2 saQ(6,3) line are obtained. Our current project aiming at measuring the Boltzmann constant, kB, by laser spectroscopy will straight away benefit from such knowledge. We anticipate that a first optical determination of kB with a competitive uncertainty of a few ppm is now reachable.
description: 13 pages, 5 figures, 1 table
Crocodile Tears - A Systematic Analysis of the Conditions under which Tears are Perceived as Insincere - Study 3
Creators: name: Zickfeld, Janis
name: Wróbel, Monika
name: Ciesielski, Paweł
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Crocodile Tears - Preregistration Study 3
Double Cross Magnetic Wall Decoupling for Quadrature Transceiver RF Array Coils using Common-Mode Differential-mode Resonators
Creators: name: Payne, Komlan
name: Bhosale, Aditya Ashok
name: Zhang, Xiaoliang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: In contrast to linearly polarized RF coil arrays, quadrature transceiver coil arrays are capable of improving signal-to-noise ratio (SNR), spatial resolution and parallel imaging performance. Owing to a reduced excitation power, low specific absorption rate can be also obtained using quadrature RF coils. However, due to the complex nature of their structure and their electromagnetic proprieties, it is challenging to achieve sufficient electromagnetic decoupling while designing multichannel quadrature RF coil arrays, particularly at ultrahigh fields. In this work, we proposed a double cross magnetic wall decoupling for quadrature transceiver RF arrays and implemented the decoupling method on common-mode differential mode quadrature (CMDM) quadrature transceiver arrays at ultrahigh field of 7T. The proposed magnetic decoupling wall comprised of two intrinsic decoupled loops is used to reduce the mutual coupling between all the multi-mode current present in the quadrature CMDM array. The decoupling network has no physical connection with the CMDMs' coils giving leverage over size adjustable RF arrays. In order to validate the feasibility of the proposed cross magnetic decoupling wall, systematic studies on the decoupling performance based on the impedance of two intrinsic loops are numerically performed. A pair of quadrature transceiver CMDMs is constructed along with the proposed decoupling network and their scattering matrix is characterized using a network analyzer. The measured results show all the current modes coupling are concurrently suppressed using the proposed cross magnetic wall. Moreover, field distribution, and SNR intensity are numerically obtained for a well-decoupled 8-channel quadrature knee-coil array.
description: 9 pages, 10 Figures
Quantum Monte Carlo study of the transverse-field Ising model on a frustrated checkerboard lattice
Creators: name: Ishizuka, H.
name: Motome, Y.
name: Furukawa, N.
name: Suzuki, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the numerical results for low temperature behavior of the transverse-field Ising model on a frustrated checkerboard lattice, with focus on the effect of both quantum and thermal fluctuations. Applying the recently-developed continuous-time quantum Monte Carlo algorithm, we compute the magnetization and susceptibility down to extremely low temperatures while changing the magnitude of both transverse and longitudinal magnetic fields. Several characteristic behaviors are observed, which were not inferred from the previously studied quantum order from disorder at zero temperature, such as a horizontal-type stripe ordering at a substantial longitudinal field and a persistent critical behavior down to low temperature in a weak longitudinal field region.
description: 6 pages, 5 figures, accepted for publication in J. Phys.: Conf. Ser
Design and technology of high-power couplers, with a special view on superconducting RF
Creators: name: Moeller, W. -D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The high-power RF coupler is the connecting part between the RF transmission line and the RF cavity and provides the electromagnetic power to the cavity and the particle beam. In addition to this RF function it also has to provide the vacuum barrier for the beam vacuum. High-power couplers are one of the most critical parts of the RF cavity system in an accelerator. A good RF and mechanical design as well as a high quality fabrication are essential for efficient and reliable operation of an accelerator.
description: 14 pages, contribution to the CAS - CERN Accelerator School: Specialised Course on RF for Accelerators; 8 - 17 Jun 2010, Ebeltoft, Denmark
Black Holes with Multiple Photon Spheres
Creators: name: Guo, Guangzhou
name: Lu, Yuhang
name: Wang, Peng
name: Wu, Houwen
name: Yang, Haitang
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, asymptotically-flat black holes with multiple photon spheres have been discovered and found to produce distinctive observational signatures. In this paper, we focus on whether these black hole solutions are physically viable, e.g., satisfying energy conditions of interest. Intriguingly, black hole and naked singularity solutions with two photon spheres and one anti-photon sphere are shown to exist in physically reasonable models, which satisfy the null, weak, dominant and strong energy conditions. Our findings reveal that black holes with multiple photon spheres may not be frequent, but they are not exotic.
description: 25 pages, 8 figures, references added
A Model for Remote Access and Protection of Smartphones using Short Message Service
Creators: name: Kuppusamy, K. S.
name: R, Senthilraja.
name: Aghila, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: 94Axx

description: The smartphone usage among people is increasing rapidly. With the phenomenal growth of smartphone use, smartphone theft is also increasing. This paper proposes a model to secure smartphones from theft as well as provides options to access a smartphone through other smartphone or a normal mobile via Short Message Service. This model provides option to track and secure the mobile by locking it. It also provides facilities to receive the incoming call and sms information to the remotely connected device and enables the remote user to control the mobile through SMS. The proposed model is validated by the prototype implementation in Android platform. Various tests are conducted in the implementation and the results are discussed.
description: 10 Pages, 11 Figures
Energy bunching in soft recollisions revealed with long-wavelength few-cycle pulses
Creators: name: Kästner, Alexander
name: Saalmann, Ulf
name: Rost, Jan M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Soft recollisions are laser-driven distant collisions of an electron with its parent ion. Such collisions may cause an energy bunching, since electrons with different initial drift momenta can acquire impacts, which exactly counterbalance these differences. The bunching generates a series of peaks in the photo-electron spectrum. We will show that this series could be uncovered peak-by-peak experimentally by means of phase-stabilized few-cycle pulses with increasing duration.
description: 8 pages, 3 figures
Hamiltonian structure of reduced fluid models for plasmas obtained from a kinetic description
Creators: name: De Guillebon, Loïc
name: Chandre, Cristel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider the Hamiltonian structure of reduced fluid models obtained from a kinetic description of collisionless plasmas by Vlasov-Maxwell equations. We investigate the possibility of finding Poisson subalgebras associated with fluid models starting from the Vlasov-Maxwell Poisson algebra. In this way, we show that the only possible Poisson subalgebra involves the moments of zeroth and first order of the Vlasov distribution, meaning the fluid density and the fluid velocity. We find that the bracket derived in [Phys. Rev. Lett. 93, 175002 (2004)] which involves moments of order 2 is not a Poisson bracket since it does not satisfy the Jacobi identity.
The Divided self: a study of Albert Camus' L'etranger and La chute
Creators: name: Kowal, Luba
Publisher: name: University of Calgary
Year: 1978
Subjects: subject: PQ 2605 A38 E858 1978 Microfiche
subject: Camus, Albert, 1913-1960. L'etranger
subject: Camus, Albert, 1913-1960. La Chute

description: Bibliography: p. 80-84.
description: This study deals with the psychological drama of the divided self in Albert Camus' novels L'Etranger and La Chute. The anxieties experienced by Meursault and Jean-Baptiste Clamence, their perceptions of reality and the ways in which they relate to others all closely coincide with the schizoid and schizophrenic states of being described by Dr. R. D. Laing in his existential-phenomenological study of sanity and madness, The Divided Self. The bewildering, often cryptic and contradictory behaviour of both Meursault and Clamence can be better understood if they are viewed, not as integral, uni-dimensional characters, but rather as ones who are split, to a schizoid and schizophrenic degree respectively, into two counteracting true and false selves. This analysis takes into account three principal existential modes of Meursault and Clamence: each character is studied firstly according to how he relates to the world, secondly to others, and finally, as seen through the attitude he eventually adopts towards existence and the meaning it comes to hold for him, to his divided self.
Spatial periodic and homogeneous transverse stress loading on ITER TF Nb3Sn bronze and internal tin strand
Creators: name: Nijhuis, A.
name: van Meerdervoort, R. P. Pompe
name: Wessel, W. A. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The transport properties of the superconducting Nb3Sn layers in the strands strongly depend on the strain state. Knowledge of the influence of axial strain, periodic bending and contact stress on the critical current (Ic) of the used Nb3Sn strands is inevitable to gain sufficient confidence in an economic design and stable operation of ITER CICCs. In the past years we have measured the Ic and n-value of various ITER Nb3Sn strands with different layout in the TARSIS facility, when subjected to spatial periodic contact stress at a temperature of 4.2 K and in a magnet field of 12 T. Recently we have made the setup suitable for application of homogeneous load along the length of the wire (125 mm) in order to evaluate possible differences related to spatial stress and possible current distribution. We present an overview of the results obtained so far on an ITER TF bronze and internal tin strand.
description: to be published in IEEE Trans Appl Supercond
Piezoelectric effect and diode effect in anapole and monopole superconductors
Creators: name: Chazono, Michiya
name: Kanasugi, Shota
name: Kitamura, Taisei
name: Yanase, Youichi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconductors lacking both inversion symmetry and time-reversal symmetry have been attracting much attention as a platform for exotic superconducting phases and anomalous phenomena, including the superconducting diode effect. Recent studies revealed intrinsic phases with this symmetry, named anapole superconductivity and monopole superconductivity, which are $PT$-symmetric superconducting states with and without Cooper pairs' total momentum, respectively. To explore characteristic phenomena in these states, we calculate and predict the superconducting piezoelectric effect and superconducting diode effect. A close relationship with the finite-$q$ pairing, asymmetric Bogoliubov spectrum, and quantum geometry is discussed. This study reveals the piezoelectric and diode effects as potential probes to elucidate exotic superconducting phases.
description: 13 pages, 16 figures
Analyse du comportement dynamique d'une broche de machine-outils
Creators: name: Bisu, Claudiu-Florinel
name: Ghinea, Mihai
name: Gérard, Alain
name: Zapciu, Miron
name: Anica, Marin
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Vibrations appearance, either unstability system, is the result of the dynamic interaction of the cutting process with the elastic system of machine tools in various working conditions. Our objective is to develop an experimental three-dimensional dynamic model in milling. Our purpose is to applied this model to optimize the cutting parameters and to monitor cutting process, milling tool and machine-tool. To reach the detailed knowledge of the dynamic phenomena we divide our study into two parts : the machine and the cutting process. The dynamic analysis of the machine is compulsory before modelling the vibratory phenomena during the cutting. A dynamic analysis method is developed to characterize completely the various machine tools components.
Personnages dans La mort heureuse et L'etranger
Creators: name: Abdel-Kader, Christiane
Publisher: name: University of Calgary
Year: 1973
Subjects: subject: PQ 2625 A38 Z54 1973
subject: Camus, Albert, 1913-1960. La mort heureuse
subject: Camus, Albert, 1913-1960. L'etranger

description: Bibliography: p. 109-110.
Bistability signatures in nonequilibrium charge transport through molecular quantum dots
Creators: name: Albrecht, Klaus Ferdinand
name: Wang, Haobin
name: Muehlbacher, Lothar
name: Thoss, Michael
name: Komnik, Andreas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the transient nonequilibrium dynamics of a molecular junction biased by a finite voltage and strongly coupled to internal vibrational degrees of freedom. Using two different, numerical exact techniques, diagrammatic Monte Carlo and the multilayer multiconfiguration time-dependent Hartree method, we show that the steady state current through the junction may depend sensitively on the initial preparation of the system, thus revealing signatures of bistability. The influence of the bias voltage and the transient dynamics on the phenomenon of bistability is analyzed. Furthermore, a possible relation to the phenomenon of stochastic switching in nanoelectromecanical devices is discussed.
description: 5 pages, 3 figures
Flat-space structure of gluon and graviton in AdS
Creators: name: Li, Yue-Zhou
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We report the differential representation of three-point and four-point amplitudes for Yang-Mills fields and Einstein gravity in AdS at tree-level. The amplitudes exhibit the flat-space structures by using the weight-shifting operators with reordering, which makes the differential double copy relation at the three-point level straightforward. For four-point Yang-Mills amplitudes, we establish the differential BCJ relation, which can be useful for proving the differential doubly copy at the four-point level in the future.
description: 13 pages; typo fixed; grammarly errors fixed including abstract; new appendices and discussions added; new refs added; proposal modified
Symposium Archäometallurgie von Kupfer und Eisen in Westeuropa: Inhalt
Creators: name: Die Redaktion
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2020

description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 35 Nr. 2 (1988)
Holzkohlen als Informationsquelle für die Archäometallurgie. Ergebnisse aus Untersuchungen im Bereich der Harzregion
Creators: name: Hillebrecht, Marie-Luise
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2020

description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 35 Nr. 2 (1988)
Programme mines et métallurgie en Franche-Comté, France. Présentation et premiers résultats
Creators: name: Jacob, Jean-Paul
name: Mangin, Michel
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2020

description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 35 Nr. 2 (1988)
Mechanisms underlying spontaneous functional sensory changes following spinal deafferentation
Creators: name: Soril, Lesley Jeanne Josephine
Publisher: name: University of British Columbia
Year: 2009

description: Dorsal root injury (DRI) induces both pain and anatomical changes in pain-processing systems in the deafferented dorsal horn. Brain-derived neurotrophic factor (BDNF) is also upregulated in the spinal cord following DRI and is thought to participate in nociceptive transmission and stimulation of axon outgrowth. Transection of the C7 and C8 dorsal roots (C7/8 DRI) generates cold pain in the ipsilateral forepaw which peaks at 10 days, and resolves within three weeks after injury. In this thesis I sought to investigate the influence of BDNF on cold pain behaviour following C7/8 DRI. Increased BDNF expression by Ox-42-positive microglia was observed up to 20 days post-C7/8 DRI. To determine the acute facilitatory effects of this increased BDNF on cold pain behaviour, intrathecal boli of TrkB-Fc ‘receptor bodies’ were administered following DRI and resulted in reduced peak response duration to peripheral cooling stimuli. However, long-term BDNF sequestration with continuous TrkB-Fc infusion failed to reduce cold pain and prevented the spontaneous recovery normally seen after three weeks. Prolonged BDNF sequestration also prevented the increase in serotonergic and GABAergic terminal densities which normally follows C7/8 DRI, and simultaneously stimulated sprouting of nociceptive primary afferents. These results dually implicate endogenous BDNF in modulating synaptic transmission and governing the plasticity of inhibitory circuitry in the deafferented spinal cord to, indirectly, promote the recovery from cold pain that develops following C7/8 DRI. We also investigated the effects of exogenous BDNF treatment in DRI-induced cold pain and hypothesized that at high concentrations, BDNF would have a preventative effect. Surprisingly, exogenous BDNF treatment also impeded cold pain recovery, which was not attributable to sprouting of nociceptive terminals. Exogenous BDNF did, however, increase the density of the inhibitory adrenergic/noradrenergic, dopaminergic and GABAergic terminals, whereas DRI-induced serotonergic sprouting was unaffected. BDNF also down-regulated spinal K⁺/Cl- co-transporter-2 (KCC2) expression, possibly resulting in conversion of GABAergic signaling (itself probably amplified subsequent to sprouting) from inhibitory to excitatory. These results illustrate the differential and exquisite levels of control which BDNF exerts over distinct populations of spinally-projecting axons, and the effects of exogenous BDNF on DRI-induced axonal plasticity and cold pain.
The Measurement of anomie, alienation and aspirations of members of a welfare rights group
Creators: name: Schikowski, Bernard Albert
Publisher: name: University of Calgary
Year: 1970
Subjects: subject: HM 131 S39 1970
subject: Self-help groups
subject: Social groups
subject: Anomy
subject: Welfare Rights Group, Calgary

description: Bibliography: p. 63-67.
A nonstationary nonparametric Bayesian approach to dynamically modeling effective connectivity in functional magnetic resonance imaging experiments
Creators: name: Bhattacharya, Sourabh
name: Maitra, Ranjan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Effective connectivity analysis provides an understanding of the functional organization of the brain by studying how activated regions influence one other. We propose a nonparametric Bayesian approach to model effective connectivity assuming a dynamic nonstationary neuronal system. Our approach uses the Dirichlet process to specify an appropriate (most plausible according to our prior beliefs) dynamic model as the "expectation" of a set of plausible models upon which we assign a probability distribution. This addresses model uncertainty associated with dynamic effective connectivity. We derive a Gibbs sampling approach to sample from the joint (and marginal) posterior distributions of the unknowns. Results on simulation experiments demonstrate our model to be flexible and a better candidate in many situations. We also used our approach to analyzing functional Magnetic Resonance Imaging (fMRI) data on a Stroop task: our analysis provided new insight into the mechanism by which an individual brain distinguishes and learns about shapes of objects.
description: Published in at http://dx.doi.org/10.1214/11-AOAS470 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
On nuclear short-range correlations and the zero-energy eigenstates of the Schrodinger equation
Creators: name: Beck, Saar
name: Weiss, Ronen
name: Barnea, Nir
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present a systematic analysis of the nuclear 2 and 3-body short range correlations, and their relations to the zero-energy eigenstates of the Schrodinger equation. To this end we analyze the doublet and triplet Coupled-Cluster amplitudes in the high momentum limit, and show that they obey universal equations independent of the number of nucleons and their state. Furthermore, we find that these Coupled-Cluster amplitudes coincide with the zero-energy Bloch-Horowitz operator. These results illuminate the relations between the nuclear many-body theory and the generalized contact formalism, introduced to describe the nuclear 2-body short range correlations, and it might also be helpful for general Coupled-Cluster computations as the asymptotic part of the amplitudes is given and shown to be universal.
Archäometrische Untersuchungen an Grabungsfunden des frühmittelalterlichen Herrensitzes Düna/Osterode
Creators: name: Kolb, Hans Emil
name: Brockner, Wolfgang
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2020

description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 35 Nr. 2 (1988)
Möglichkeiten zur Rekonstruktion der urgeschichtlichen Hüttenprozesse des Kupfers und Eisens aus Schlackenuntersuchungen am mittelalterlichen Beispiel Feistawiese
Creators: name: Sperl, Gerhard
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2020

description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 35 Nr. 2 (1988)
Attitudes and actions of C.A.S.W. members in the Prairies towards political involvement
Creators: name: Dyck, Bertram
Publisher: name: University of Calgary
Year: 1972
Subjects: subject: HV 104 D92 1972
subject: Canadian Association of Social Workers
subject: Social service - Prairie Provinces
subject: Social workers
subject: Pressure groups

description: Bibliography: p. 92-95.
Etudes paleometallurgiques comparatives d'outils miniers du XVème et du XVIème siecles
Creators: name: Guillot, Ivan
name: Fluzin, Philippe
name: Benoit, Paul
name: Beranger, Gerard
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2020

description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 35 Nr. 2 (1988)
New ultracool subdwarfs identified in large-scale surveys using Virtual Observatory tools: Part I: UKIDSS LAS DR5 vs SDSS DR7
Creators: name: Lodieu, N.
name: Contreras, M. Espinoza
name: Osorio, M. R. Zapatero
name: Solano, E.
name: Aberasturi, M.
name: Martín, E. L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The aim of the project is to improve our knowledge on the low-mass and low-metallicity population to investigate the influence of metallicity of the stellar (and substellar) mass function. We present the results of a photometric and proper motion search aimed at unearthing ultracool subdwarfs in large-scale surveys. We employed and combined the UKIDSS LAS DR5 and the SDSS DR7 complemented with ancillary data from 2MASS, DENIS and SuperCOSMOS. The SDSS DR7 vs UKIDSS LAS DR5 search returned a total of 32 ultracool subdwarf candidates, only two being recognised as a subdwarf in the literature. Twenty-seven candidates were followed-up spectroscopically in the optical between 600 and 1000 nm. We confirmed 20 candidates as subdwarfs, extreme subdwarfs or ultra-subdwarfs with spectral types later than M5; this represents a success rate of ~60%. Among those 20 new subdwarfs, we identified 2 early-L subdwarfs very likely located within 100 pc that we propose as templates for future searches because they are the first examples of their subclass. Another 7 sources are solar-metallicity M dwarfs with spectral types between M4 and M7 without Halpha emission, suggesting that they are old M dwarfs. The remaining 5 candidates do not have spectroscopic follow-up yet; only 1 remains as a bona-fide ultracool subdwarf after revision of their proper motions. We assigned spectral types based on the current classification schemes and, when possible, we measured their radial velocities. Using the limited number of subdwarfs with trigonometric parallaxes, we estimated distances between 90 and 600 for the new subdwarfs. We provide mid-infrared photometry from WISE for two subdwarfs and discuss their colours. Finally, we estimate a lower limit of the surface density of ultracool subdwarfs of the order of 5000-5700 times lower than that of solar-metallicity late-M dwarfs (Shortened).
description: Accepted by A&A, 18 pages, 11 figures, 2 figures in Appendix, 7 tables. Paper not yet corrected by A&A language editor
Time evolution of density matrices as a theory of random surfaces
Creators: name: Pagani, Carlo
name: Reuter, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the operatorial formulation of quantum statistics, the time evolution of density matrices is governed by von Neumann's equation. Within the phase space formulation of quantum mechanics it translates into Moyal's equation, and a formal solution of the latter is provided by Marinov's path integral. In this paper we uncover a hidden property of the Marinov path integral, demonstrating that it describes a theory of ruled random surfaces in phase space.
description: 31 pages
A Lightweight and Flexible Mobile Agent Platform Tailored to Management Applications
Creators: name: Gavalas, Damianos
Publisher: name: arXiv
Year: 2011
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Mobile Agents (MAs) represent a distributed computing technology that promises to address the scalability problems of centralized network management. A critical issue that will affect the wider adoption of MA paradigm in management applications is the development of MA Platforms (MAPs) expressly oriented to distributed management. However, most of available platforms impose considerable burden on network and system resources and also lack of essential functionality. In this paper, we discuss the design considerations and implementation details of a complete MAP research prototype that sufficiently addresses all the aforementioned issues. Our MAP has been implemented in Java and tailored for network and systems management applications.
description: 7 pages, 5 figures; Proceedings of the 2006 Conference on Mobile Computing and Wireless Communications (MCWC'2006)
Ein früher südgallischer Terra-Sigillata-Sammelfund aus Bregenz: Überrest eines militärischen Keramikdepots?
Creators: name: Kopf, Julia
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2020

description: 1913 wurde in Bregenz ein »Schatz seltener südgallischer Sigillaten« geborgen, um es mit den Worten eines der Ausgräber, A. Hild, auszudrücken. Der aus annähernd 400 verbrannten Gefäßindividuen bestehende Fundkomplex stellt den bislang größten bekannten Depotfund von südgallischer Terra Sigillata tiberischer bis frühclaudischer Zeit außerhalb des Töpfereiorts La Graufesenque dar. Das Formenspektrum umfasst zwei reliefierte und 15 glatte Typen (Drag. 11, Drag. 29, Halt. 1a, Drag. 17a, Drag. 17b, Drag. 17c, Drag. 17aR, Drag. 15/17, Drag. 15/17R, Drag. 16, Ritt. 1, Drag. 18, Ritt. 5, Drag. 24/25, Ritt. 8, Drag. 27 und Ritt. 12). In Kombination mit den Produktionsdaten der 23 Töpfer, die durch insgesamt 96 Bodenstempel belegt sind, ergibt sich ein Datierungsansatz des Ensembles in den Jahren um 40 n. Chr. Das zeitlich homogene Formen- und Töpferspektrum mit quantitativem Vorherrschen einzelner Typen (vor allem Drag. 24/25, Ritt. 8), das Vorhandensein von gleichen Stempeltypen in Kombination mit der eindeutigen Dominanz eines einzigen Töpfers (Cantus), der hohe Erhaltungsgrad der Gefäße, das völlige Fehlen italischer Ware sowie die weitgehende Absenz eindeutiger Gebrauchsspuren sprechen gegen eine Deutung als Siedlungsmaterial. Vielmehr kann der Fundkomplex der Kategorie der »pre-consumption deposits« zugeordnet werden und repräsentiert damit ein durch einen Brand zerstörtes Depot unbenutzter Gefäße. In welchem baulichen Kontext dieses ursprünglich aufbewahrt und schlussendlich entsorgt wurde, kann nicht beurteilt werden, da keine stratigraphisch zugehörigen Befunde ausgegraben wurden. Aufgrund der Position des Fundpunktes innerhalb des 44/45 n. Chr. aufgelassenen Militärlagers ist eine kontextuelle Zugehörigkeit zu diesem jedoch vorauszusetzen. Daher dürfte es sich beim Fundkomplex Bregenz 1913 um die Überreste eines der wenigen bisher bekannten Keramiklager innerhalb einer militärischen Anlage handeln.
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 62 Nr. 1 (2015)
Reporting a Case with Literature Review on Enucleation of a Giant Prostatic Hyperplasia in Ghana
Creators: name: Egote, Alexander K.
name: Ossei, Paul Poku Sampene
name: Bortier, Theophilus
name: Taylor, John
Publisher: name: Zenodo
Year: 2021
Subjects: Benign prostatic hyperplasia
prostatectomy
transvesical
case report

description: Herein we report a patient with a prostatic hyperplasia weighing exactly 700 g which was successfully removed at the Brong Ahafo Regional Hospital theatre in Ghana by Pfannesteil Transvesical Simple Prostatectomy. A prostatic hyperplasia of enormous size is very uncommon and to the best of our knowledge, only ten of such cases have been previously reported. In order to tackle the risk of haemorrhage effectively, we recommend the technique of inflation of catheter balloon at the base of enucleated prostate with 6-hour traction and continuous bladder irrigation to stop bleeding in large and vascular prostates. The case report presented here constitutes the eleventh heaviest prostate reported in medical literature and also forms the first case report of giant prostatic hyperplasia from Ghana.
Noncommutative symmetric functions with matrix parameters
Creators: name: Lascoux, Alain
name: Novelli, Jean-Christophe
name: Thibon, Jean-Yves
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We define new families of noncommutative symmetric functions and quasi-symmetric functions depending on two matrices of parameters, and more generally on parameters associated with paths in a binary tree. Appropriate specializations of both matrices then give back the two-vector families of Hivert, Lascoux, and Thibon and the noncommutative Macdonald functions of Bergeron and Zabrocki.
description: 21 pages
title: Towards understanding interactions between supramolecular antimicrobial surfactants and microbial membranes
Creators: name: Hilton, Kira
Publisher: name: University of Kent
Year: 2024

description: Antimicrobial resistance (AMR) is one of the biggest threats to global health, with the relentless evolution of resistance mechanisms being the greatest arms race. New methods of treatment of these AMR bacteria are required, bypassing resistance mechanisms, allowing for a new generation of supramolecular antimicrobial agents to arise. One avenue of target is the phospholipid membrane, which differs in composition to eukaryotic membranes. The first series of compounds detailed herein show that changing the structure of the compound affects the physicochemical properties, material characteristics, membrane interaction profile, and antimicrobial/antibiofilm properties. It was determined that lysis and membrane adhesion of these compounds occur through many modes of action. The toxicity profile of these compounds was determined using the model organism Caenorhabditis elegans, where no toxicity was observed. A second series of compounds were designed to target Candida Spp., Pseudomonas aeruginosa (P. aeruginosa) and polymicrobial biofilms of the two species. Physicochemical and membrane interaction studies were undertaken, and initial structure activity relationships were formed linking increased hydrogen bond donor acidity with increased antibiofilm activity. Co-formulation of these compounds produced interesting results, with some increased activity against Candida auris polymicrobial biofilms. One of these compounds was taken forward for in vitro DMPK studies and displayed a druggable profile. Finally, the effect of AMR on the phospholipid membrane was determined using two strains and five isogenic mutants of P. aeruginosa. The antimicrobial activity of three sulfobetaine zwitterionic surfactants were determined on this panel of P. aeruginosa and novel mode of action was determined through molecular level interactions with extracted phospholipids from these bacteria. This work gives new insight into the molecular level interactions between antimicrobials and bacteria, enabling future drug discovery and development pathways within the AMR field.
Antike Gläser vom Bau der Bagdadbahn. Zur Herkunft einer Glassammlung im Römisch-Germanischen Zentralmuseum in Mainz
Creators: name: Künzl, Ernst
Publisher: name: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz
Year: 2020

description: Antike Gläser vom Bau der Bagdadbahn. Zur Herkunft einer Glassammlung im Römisch-Germanischen Zentralmuseum in Mainz In den Sammlungen des RGZM befindet sich eine Gruppe von 63 antiken Gläsern, die beim Bau der Bagdadbahn im Raum nördlich von Aleppo entdeckt wurden. Sie kamen in den Jahren 1912-1914 durch Vermittlung des Darmstädter Bauingenieurs Ernst Lebach nach Mainz. Es handelt sich fast ausschließlich um Gläser der römischen Kaiserzeit; die Qualität ist gut, auch wenn keine spektakulären Glanzwerke vertreten sind. Zusammen mit weiteren 33 Gläsern aus der osmanischen Türkei, die durch Vermittlung von Theodor Wiegand 1912 an das RGZM kamen, ergibt sich ein Bestand von 96 sicher aus dem römischen Ostmittelmeerraum stammenden Gläsern. Es war die erklärte Absicht der damaligen Museumsleitung (K. Schumacher, F. Behn), diese Gläser als Vergleichsmaterial zu den vielen Glasfunden aus den Nordwestprovinzen des Römischen Reiches zu erwerben und zu erforschen.
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 62 Nr. 1 (2015)
Breakdown of rotational tori in 2D and 4D conservative and dissipative standard maps
Creators: name: Bustamante, Adrian P.
name: Celletti, Alessandra
name: Lhotka, Christoph
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We study the breakdown of rotational invariant tori in 2D and 4D standard maps by implementing three different methods. First, we analyze the domains of analyticity of a torus with given frequency through the computation of the Lindstedt series expansions of the embedding of the torus and the drift term. The Padé approximants provide the shape of the analyticity domains by plotting the poles of the polynomial at the denominator of the approximants. Secondly, we implement a Newton method to construct the embedding of the torus; the breakdown threshold is then estimated by looking at the blow-up of the Sobolev norms of the embedding. Finally, we implement an extension of Greene method to get information on the breakdown threshold of an invariant torus with irrational frequency by looking at the stability of the periodic orbits with periods approximating the frequency of the torus. We apply these methods to 2D and 4D standard maps. The 2D maps can either be conservative (symplectic) or dissipative ( more precisely, conformally symplectic, namely a dissipative map with the geometric property to transform the symplectic form into a multiple of itself). The 4D maps are obtained coupling $(i)$ two symplectic standard maps, or $(ii)$ two conformally symplectic standard maps, or $(iii)$ a symplectic and a conformally symplectic standard map. Concerning the results, Padé and Newton methods perform well and provide reliable and consistent results (although we implemented Newton method only for symplectic and conformally symplectic maps). Our implementation of the extension of Greene method is inconclusive, since it is computationally expensive and delicate, especially in 4D non-symplectic maps, also due to the existence of Arnold tongues.
A statistical analysis approach of plasma dynamics in gyrokinetic simulations of stellarator turbulence
Creators: name: Papadopoulos, A. D.
name: Anderson, J.
name: Kim, E-J.
name: Mavridis, M.
name: Isliker, H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A geometrical method is used for the analysis of stochastic processes in plasma turbulence. Distances between thermodynamic states can be computed according the thermodynamic length methodology which allows the use of a Riemannian metric on the phase space. A geometric methodology is suitable in order to understand stochastic processes involved in e.g. order-disorder transition, where a sudden increase in distance is expected. Gyrokinetic simulations of Ion-Temperature-Gradient (ITG) mode driven turbulence in the core-region of the stellarator W7-X, with realistic quasi-isodynamic topologies are considered. In gyrokinetic plasma turbulence simulations avalanches, e.g. of heat and particles, are often found and in this work a novel method for detection is investigated. This new method combines the Singular Spectrum Analysis algorithm and Hierarchical Clustering such that the gyrokinetic simulation time series is decomposed into a part of useful physical information and noise. The informative component of the time series is used for the calculation of the Hurst exponent, the Information Length and the Dynamic Time. Based on these measures the physical properties of the time series is revealed.
description: 4 pages, Conference paper EPS 2022