cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Extremely broad radio recombination maser lines toward the high-velocity ionized jet in Cepheus A HW2
Creators: name: Jimenez-Serra, Izaskun
name: Martin-Pintado, Jesus
name: Baez-Rubio, Alejandro
name: Patel, Nimesh
name: Thum, Clemens
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first detection of the H40a, H34a and H31a radio recombination lines (RRLs) at millimeter wavelengths toward the high-velocity, ionized jet in the Cepheus A HW2 star forming region. From our single-dish and interferometric observations, we find that the measured RRLs show extremely broad asymmetric line profiles with zero-intensity linewidths of ~1100 kms-1. From the linewidths, we estimate a terminal velocity for the ionized gas in the jet of >500 kms-1, consistent with that obtained from the proper motions of the HW2 radio jet. The total integrated line-to-continuum flux ratios of the H40a, H34a and H31a lines are 43, 229 and 280 kms-1, clearly deviating from LTE predictions. These ratios are very similar to those observed for the RRL maser toward MWC349A, suggesting that the intensities of the RRLs toward HW2 are affected by maser emission. Our radiative transfer modeling of the RRLs shows that their asymmetric profiles could be explained by maser emission arising from a bi-conical radio jet with a semi-aperture angle of 18 deg, electron density distribution varying as r^(-2.11) and turbulent and expanding wind velocities of 60 and 500 kms-1.
description: 6 pages, 2 figures, 3 tables, accepted for publication in ApJL
Chinese Pine Drought Treatment
Creators: name: 钮世辉(Shihui Niu)
Publisher: name: CNGB
Year: 2021
Subjects: Transcriptome or Gene expression
Multiisolate
Agricultural

description: Drought stress is one of the foremost environmental stress with extensive ecological impacts and regulates various physiological, metabolic, and molecular responses. In the present study, the Pinus tabuliformis transcriptome was studied to evaluate the drought-responsive genes under drought and recovery stages using RNA-Seq approaches.
Chaos and stability in a model of inhibitory neuronal network
Creators: name: Catsigeras, Eleonora
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37N25, 34C15, 34C28, 92B20, 92C20

description: We analyze the dynamics of a deterministic model of inhibitory neuronal networks proving that the discontinuities of the Poincare map produce a never empty chaotic set, while its continuity pieces produce stable orbits. We classify the systems in three types: the almost everywhere (a.e.) chaotic, the a.e. stable, and the combined systems. The a.e. stable are periodic and chaos appears as bifurcations. We prove that a.e. stable systems exhibit limit cycles, attracting a.e. the orbits.
title: YOUNG PEOPLE IN POLAND AND GERMANY – SELECTED ASPECTS OF THE ANALYSIS
title: MŁODZIW POLSCE I NIEMCZECH – WYBRANE ASPEKTY ANALIZY
titleType: AlternativeTitle
Creators: name: Zagulski, Sylwester
Publisher: name: Akademia Marynakri Wojennej im. Bohaterów Westerplatte
Year: 2020

description: This paper discusses selected aspects that characterize youth in Poland and Germany taking some selected aspects of the sociological, and comparative analysis. In particular, the following aspects that differentiate young people in the neighbouring countries are presented in the context of transformations occurring in Poland and Germany: family, the perception of school and the role of education, leisure time, including time spent in virtual reality, the perceptions of faith and religion. Which have been placed against the background of the transformation of both societies over the last decades.
On the basis of the data presented, the text is an attempt to describe the reasons for the changes, and ex-plain them in a broader theoretical context.
description: W artykule omówiono wybrane aspekty charakteryzujące młodzież w Polsce i w Niemczech w perspektywie socjologicznej i porównawczej. W kontekście przemian zachodzących w Polsce i w Niemczech w szczególności zwrócono uwagę na te obszary, które nadal różnicują młodzież w obu sąsiednich krajach, takie jak: rodzina, postrzeganie szkoły i rola edukacji, czas wolny, w tym czas spędzany w rzeczywistości wirtualnej, postrzeganie wiary i religii. Umieszczając je na tle przemian obu społeczeństw, na przestrzeni ostatnich dekad.
Biorąc pod uwagę zaprezentowane dane, tekst jest próbą opisania przyczyn zachodzących zmian i umieszczenia ich w szerszym kontekście teoretycznym.
Low lying baryon spectrum with $N_f = 2+1+1$ dynamical twisted quarks
Creators: name: Drach, Vincent
name: Jansen, Karl
name: Carbonell, Jaume
name: Papinutto, Mauro
name: Alexandrou, Constantia
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present first results on the octet and decuplet strange baryon spectrum with $N_f=2+1+1$ twisted mass quarks. We use an Osterwalder Seiler valence strange quark with a mass tuned to the kaon and compare the results with those obtained in the unitary setup. This comparison allows to perform a first study of the lattice artefacts introduced by the mixed action approach. We investigate the effect of the strange and charm quarks in the sea by using two lattice spacings and comparing with preceding $N_f = 2$ twisted mass fermion calculations.
description: Contribution at the XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Italy
Rank-based SLOCC classification for odd n qubits
Creators: name: Li, Xiangrong
name: Li, Dafa
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the entanglement classification under stochastic local operations and classical communication (SLOCC) for odd n-qubit pure states. For this purpose, we introduce the rank with respect to qubit i for an odd n-qubit state. The ranks with respect to qubits 1,2,...,n give rise to the classification of the space of odd n qubits into 3^n families.
description: Submitted to QIC on November 12, 2010
Adaptations in visual and proprioceptive processing following short- and long-term visual deprivation
Creators: name: Bourns, Karen Elizabeth
Publisher: name: University of British Columbia
Year: 2016

description: While significant cortical plasticity is known to take place during prolonged visual deprivation, little is known about adaptation to acute onset vision loss. Here, we use a two-experiment study to investigate adaptations in processing visual and proprioceptive information in acute onset vision loss. Experiment I: Visual input was removed for 2 hours to simulate acute onset short-term vision loss. Participants performed 80 trials of a reaching and grasping task pre- and post-deprivation (160 trials). Proprioceptive control (No-Vision) was used for the first 40 trials, followed by 40 trials using visual control (Vision). In all trials participants grasped a circular target in response to an auditory tone. Prior to the initiation of each trial, the subject’s arm was passively moved to the target location and returned to the start position by an experimenter. Kinematic measurements (e.g. limb position, grip aperture) were obtained using 3 infrared markers (thumb, forefinger, and wrist) and an OptoTrak Certus (Northern Digital, Inc.). Experiment II: On the Experimental day, Visual input was removed for 8 hours to simulate acute onset long-term vision loss. During the 8-hr deprivation, participants performed normal daily activities with the assistance of an experimenter. On the control day, participants performed these same activities with full vision. Pre- and post each 8 hour period participants performed the same grasping task as Experiment I. In addition to the grasping task, participants completed an oddball detection task following the grasping task. Somatosensory and visual evoked potentials were recorded in response to tactile and visual stimuli. Both tasks involved detecting stimulus onset to either the right or left index finger. Results of both experiments suggest a dual-phase adaptation: improving on movement speed rather than corrective capacity in early adaptation, and favouring planning more proprioceptively accurate movements later in adaptation.
Cold quark matter in astrophysics of compact stars
Creators: name: Sedrakian, Armen
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The appearance of quark matter in the centers of compact stars has a number of astrophysical implications. In this contribution I discuss the structure and stability of compact stars, gravitational radiation from non-axisymmetric deformations, and nucleation and dynamics of vortices (flux tubes) in the color superconducting phases.
description: 8 pages, 2 figures, contribution to the proceedings of QCD@Work, June 20-23rd, 2010, Martina Franca, Italy
Angular Schmidt Modes in Spontaneous Parametric Down-Conversion
Creators: name: Straupe, S. S.
name: Ivanov, D. P.
name: Kalinkin, A. A.
name: Bobrov, I. B.
name: Kulik, S. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report a proof-of-principle experiment demonstrating that appropriately chosen set of Hermite-Gaussian modes constitutes a Schmidt decomposition for transverse momentum states of biphotons generated in the process of spontaneous parametric down conversion. We experimentally realize projective measurements in Schmidt basis and observe correlations between appropriate pairs of modes. We perform tomographical state reconstruction in the Schmidt basis, by direct measurement of single-photon density matrix eigenvalues.
description: 5 pages, 4 figures
Near-Optimal Deviation-Proof Medium Access Control Designs in Wireless Networks
Creators: name: Phan, Khoa Tran
name: Park, Jaeok
name: van der Schaar, Mihaela
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Distributed medium access control (MAC) protocols are essential for the proliferation of low cost, decentralized wireless local area networks (WLANs). Most MAC protocols are designed with the presumption that nodes comply with prescribed rules. However, selfish nodes have natural motives to manipulate protocols in order to improve their own performance. This often degrades the performance of other nodes as well as that of the overall system. In this work, we propose a class of protocols that limit the performance gain which nodes can obtain through selfish manipulation while incurring only a small efficiency loss. The proposed protocols are based on the idea of a review strategy, with which nodes collect signals about the actions of other nodes over a period of time, use a statistical test to infer whether or not other nodes are following the prescribed protocol, and trigger a punishment if a departure from the protocol is perceived. We consider the cases of private and public signals and provide analytical and numerical results to demonstrate the properties of the proposed protocols.
description: 14 double-column pages, submitted to ACM/IEEE Trans Networking
Probing single-photon ionization on the attosecond time scale
Creators: name: Klünder, K.
name: Dahlström, J. M.
name: Gisselbrecht, M.
name: Fordell, T.
name: Swoboda, M.
name: Guénot, D.
name: Johnsson, P.
name: Caillat, J.
name: Mauritsson, J.
name: Maquet, A.
name: Taïeb, R.
name: L'Huillier, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study photoionization of argon atoms excited by attosecond pulses using an interferometric measurement technique. We measure the difference in time delays between electrons emitted from the $3s^2$ and from the $3p^6$ shell, at different excitation energies ranging from 32 to 42 eV. The determination of single photoemission time delays requires to take into account the measurement process, involving the interaction with a probing infrared field. This contribution can be estimated using an universal formula and is found to account for a substantial fraction of the measured delay.
description: 4 pages, 4 figures, under consideration
Economia comportamental e o comportamento do consumidor
Creators: name: Morais, Marizangela Gomes de
Publisher: name: Zenodo
Year: 2019
Subjects: Economia comportamental
Comportamento do consumidor

description: Objetiva levantar a relação da economia com o comportamento do consumidor, por meio de um ensaio teórico que apresenta conceitos de economia, economia comportamental e comportamento do consumidor.
title: Synthesis and investigation of 2-substituted hetero-/arylacetic acids as bottom groups for selective inhibitors of the FK506-binding protein 51 (FKBP51)
Creators: name: Knaup, Fabian Henrik
Publisher: name: UNSPECIFIED
Year: 2023

description: In recent years the FK506-binding protein 51 (FKBP51) has emerged as a potential target for treating depression, chronic pain, or diabetes. The first selective FKBP51 inhibitors, SAFit1 and SAFit2, contain a crucial cyclohexyl group in the bottom group section, enabling selectivity over the closest homolog FKBP52. After discovering these lead compounds, all structure-based optimizations were conducted in the context of the cyclohexyl group for inducing selectivity for FKBP51. Therefore, first, different approaches for synthesizing 2,2-disubstituted acetic acids were investigated, and the respective SAFit1 analogs were analyzed by structure-affinity relationships. During the structure-based optimization of the SAFit bottom group to enhance the overall physicochemical properties and metabolic stability, a thiophene scaffold was identified that could enable selectivity for FKBP51. For the first time since the discovery of the SAFit ligands, a suitable replacement for the highly efficient cyclohexyl motif was identified. Additionally, thiophene-containing SAFit analogs have a high binding affinity for FKBP51 and can discriminate between FKBP51 and its closest homolog, FKBP52. The co-crystal structures of those analogs also revealed that the novel scaffold enables selectivity by binding to the previously identified transient binding pocket, which is characterized by the displacement of the phenylalanine residue in position 67 towards the solvent phase. Moreover, besides high binding affinity and selectivity for FKBP51, the most promising SAFit2 analog 68b of this series also possesses an acceptable pharmacokinetic profile in-vivo. As a result, the thiophene-containing SAFit2 analogs are promising tool compounds for investigating FKBP51 in animal models.
Magnetic properties of the Hubbard model on kagome stripes
Creators: name: Derzhko, O.
name: Maksymenko, M.
name: Richter, J.
name: Honecker, A.
name: Moessner, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the one-orbital $N$-site repulsive Hubbard model on two kagome-like chains, both of which yield a completely dispersionless (flat) one-electron band. Using exact many-electron ground states in the subspaces with $n\le n_{\max}$ ($n_{\max}\propto N$) electrons, we calculate the square of the total spin in the ground state to discuss magnetic properties of the models. We have found that although for $n
description: The paper was presented at the 14th Czech and Slovak Conference on Magnetism CSMAG'10 (6.-9. July 2010, Ko\v{s}ice, Slovakia)
Concentrate to annihilate : a strategic analysis of the Rwandan genocide
Creators: name: Stonehouse, Jeff
Publisher: name: University of British Columbia
Year: 2016

description: This thesis has two goals. First, drawing upon centuries of strategic theory, I develop an analytical framework called the 'strategy hierarchy'. This heuristic device simplifies the diffuse field of strategic theory by focusing analysis on three interconnected themes: policy, grand strategy and military strategy. I argue that by using this framework it is possible to transfer the contributions of conventional strategic theory to episodes of genocidal violence. Second, I use the 'strategy hierarchy' as a lens through which to base an analysis of the Rwandan genocide of 1994. The 'policy' that preceded the genocide was developed by an entrenched political, economic and social elite called the akazu. In the late 1980s, this group of elites encountered three threats to their continued dominance: calls for multipartyism, an economic downtown and an invasion by the Rwandan Patriotic Front (RPF). The diverse methods of meeting this threat were the domain of 'grand strategy'. Prior to the outbreak of mass violence, the akazu and their network of supporters tackled these challenges politically, economically, socially, culturally and diplomatically. One of the key processes paralleling this multifaceted assault was the development of a genocidal ideology. According to this belief system, non-violent threats from the political opposition and from the Tutsi ethnicity were conflated with the armed and aggressive RPF. On 6 April 1994, President Habyarimana was assassinated. This 'strategic shock' resulted in a dramatic shift in grand strategic priorities. Pursuing elite policy, 'military strategy' took precedence over non-martial means. Two types of military strategy emerged. The primary strategy targeted Hutu politicians and rival elites. This strategy was largely successful within the first week of the genocide. Then, a new strategy emerged. The organizers of the genocide took advantage of and encouraged the traditional Tutsi practice of converging upon the churches for sanctuary during times of political upheaval. With thousands gathered at public locations, the perpetrators commissioned a series of extensive and high fatality massacres.
Holographic three-point functions of giant gravitons
Creators: name: Bissi, Agnese
name: Kristjansen, Charlotte
name: Young, Donovan
name: Zoubos, Konstantinos
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Working within the AdS/CFT correspondence we calculate the three-point function of two giant gravitons and one pointlike graviton using methods of semiclassical string theory and considering both the case where the giant gravitons wrap an S^3 in S^5 and the case where the giant gravitons wrap an S^3 in AdS_5. We likewise calculate the correlation function in N=4 SYM using two Schur polynomials and a single trace chiral primary. We find that the gauge and string theory results have structural similarities but do not match perfectly, and interpret this in terms of the Schur polynomials' inability to interpolate between dual giant and pointlike gravitons.
description: 21 pages
Crossings, colorings, and cliques
Creators: name: Albertson, Michael O.
name: Cranston, Daniel W.
name: Fox, Jacob
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C10

description: Albertson conjectured that if graph $G$ has chromatic number $r$, then the crossing number of $G$ is at least that of the complete graph $K_r$. This conjecture in the case $r=5$ is equivalent to the four color theorem. It was verified for $r=6$ by Oporowski and Zhao. In this paper, we prove the conjecture for $7 \leq r \leq 12$ using results of Dirac; Gallai; and Kostochka and Stiebitz that give lower bounds on the number of edges in critical graphs, together with lower bounds by Pach et.al. on the crossing number of graphs in terms of the number of edges and vertices.
description: 15 pages
Reconceiving the duty to consult and accommodate Aboriginal peoples : a relational approach
Creators: name: Manley-Casimir, Kirsten
Publisher: name: University of British Columbia
Year: 2016

description: Duty to consult and accommodate jurisprudence does not live up to the promise of reconciliation that the Supreme Court of Canada has identified as the grand purpose of section 35(1) of the Constitution Acts. I argue that a relational framework to the duty to consult and accommodate would forward reconciliation between Indigenous and non-Indigenous peoples within Canada. I suggest four bijural principles to ground this framework: respect, recognition, reciprocity and reconciliation – all of which find support in Canadian and Indigenous laws. The principle of respect situates Indigenous and non-Indigenous peoples within a web of relationships that define our identities and level of self-respect. Practical strategies include making interdependence primary, rejecting colonial attitudes, and creating space for Indigenous communities to foster cultural difference. The principle of recognition involves two aspects: acknowledgement and affirmation. Acknowledgment involves acknowledging historic wrongs, taking responsibility, and moving forward together in light of the history. Practical strategies include recognizing the value of Indigenous storytelling, creating spaces for meaningful listening, and making a commitment to remember and change. Affirmation involves formally entrenching in law the inherent rights of Indigenous communities. It involves rejecting the assumption of settler entitlement to Indigenous lands, putting all issues on the table in political negotiations, and creating a sphere of recognition for Indigenous governance and legal systems. The principle of reciprocity involves engaging with cross-cultural others to create an equally beneficial relationship aimed at mutual understanding. Practical strategies include dialogical engagement with no hidden agenda, starting from a point of wonder, humility and risk, and striving for embodied connections with cross-cultural others. The principle of reconciliation involves a long-term process to rebuild damaged relationships between Indigenous and non-Indigenous peoples. Practical strategies include rebuilding trust, developing a shared vision of the future, creating processes to manage conflicts that arise, and implementing concrete actions to move towards the shared vision. In the context of the duty to consult and accommodate, each principle points to attitudinal shifts and concrete actions that have implications for Canadian judges and governments. Implementing this relational framework provides a promising pathway forward to rebuild Indigenous/non-Indigenous relationships within Canada.
Emergent Ising degrees of freedom in frustrated two-leg ladder and bilayer $s=1/2$ Heisenberg antiferromagnets
Creators: name: Derzhko, Oleg
name: Krokhmalskii, Taras
name: Richter, Johannes
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Based on exact diagonalization data for finite quantum Heisenberg antiferromagnets on two frustrated lattices (two-leg ladder and bilayer) and analytical arguments we map low-energy degrees of freedom of the spin models in a magnetic field on classical lattice-gas models. Further we use transfer-matrix calculations and classical Monte Carlo simulations to give a quantitative description of low-temperature thermodynamics of the quantum spin models. The classical lattice-gas model yields an excellent description of the quantum spin models up to quite large temperatures. The main peculiarity of the considered frustrated bilayer is a phase transition which occurs at low temperatures for a wide range of magnetic fields below the saturation magnetic field and belongs to the two-dimensional Ising model universality class.
description: 17 pages, 8 figures
Quantum statistical correlations in thermal field theories: boundary effective theory
Creators: name: Bessa, A.
name: Brandt, F. T.
name: de Carvalho, C. A. A.
name: Fraga, E. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the one-loop effective action at finite temperature for a scalar field with quartic interaction has the same renormalized expression as at zero temperature if written in terms of a certain classical field $ϕ_c$, and if we trade free propagators at zero temperature for their finite-temperature counterparts. The result follows if we write the partition function as an integral over field eigenstates (boundary fields) of the density matrix element in the functional Schrödinger field-representation, and perform a semiclassical expansion in two steps: first, we integrate around the saddle-point for fixed boundary fields, which is the classical field $ϕ_c$, a functional of the boundary fields; then, we perform a saddle-point integration over the boundary fields, whose correlations characterize the thermal properties of the system. This procedure provides a dimensionally-reduced effective theory for the thermal system. We calculate the two-point correlation as an example.
description: 13 pages, 1 figure
Robust limit on a varying proton-to-electron mass ratio from a single H2 system
Creators: name: Wendt, Martin
name: Molaro, Paolo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The variation of the dimensionless fundamental physical constant mu=m_p/m_e can be checked through observation of Lyman and Werner lines of molecular hydrogen in the spectra of distant QSOs. Our intention is to asses the accuracy of the investigation concerning a possible variation of mu and to provide more robust results for QSO 0347-383. The goal in mind is to resolve the current controversy on variation of mu and devise explanations for the different findings. We achieve this not by another single result but by providing alternative approaches to the problem. An analysis based on independent data sets of QSO 0347-383 is put forward and new approaches for some of the steps involved in the data analysis are introduced. We analyse two independent sets of observations of the same absorption system and for the first time we apply corrections for the observed offsets between discrete spectra Drawing on two independent observations of a single absorption system in QSO 0347-383 our detailed analysis yields dmu/mu = 15 +/- (9_stat + 6_sys) x 10^{-6} at z_abs=3.025. Based on the overall goodness-of-fit we estimate the limit of accuracy to about 300 m/s, consisting of roughly 180 m/s due to the uncertainty of the fit and about 120 m/s allocated to systematics This work presents alternative approaches to handle systematics and introduces methods required for precision analysis of QSO spectra available in the near future.
description: 9 pages, 10 figures, submitted to A&A
Passive harmonic mode-locking by mode selection in Fabry-Perot diode lasers with patterned effective index
Creators: name: Bitauld, D.
name: Osborne, S.
name: O'Brien, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate passive harmonic mode-locking of a quantum well laser diode designed to support a discrete comb of Fabry-Perot modes. Spectral filtering of the mode spectrum was achieved using a non-periodic patterning of the cavity effective index. By selecting six modes spaced at twice the fundamental mode spacing, near-transform limited pulsed output with 2 ps pulse duration was obtained at a repetition rate of 100 GHz.
description: 3 pages
A Euclidean formulation of relativistic quantum mechanics
Creators: name: Kopp, Philip
name: Polyzou, Wayne
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In this paper we discuss a formulation of relativistic quantum mechanics that uses Euclidean Green functions or generating functionals as input. This formalism has a close relation to quantum field theory, but as a theory of linear operators on a Hilbert space, it has many of the advantages of quantum mechanics. One interesting feature of this approach is that matrix elements of operators in normalizable states on the physical Hilbert space can be calculated directly using the Euclidean Green functions without performing an analytic continuation. The formalism is summarized in this paper. We discuss the motivation, advantages and difficulties in using this formalism. We discuss how to compute bound states, scattering cross sections, and finite Poincare transformations without using analytic continuation. A toy model is used to demonstrate how matrix elements of exp(-beta H) in normalizable states can be used to construct-sharp momentum transition matrix elements.
description: 34 pages, 12 figures
Optical Synthesis of Terahertz and Millimeter-Wave Frequencies with Discrete Mode Diode Lasers
Creators: name: O'Brien, Stephen
name: Osborne, Simon
name: Bitauld, David
name: Brandonisio, Nicola
name: Amann, Andreas
name: Phelan, Richard
name: Kelly, Brian
name: O'Gorman, James
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: It is shown that optical synthesis of terahertz and millimeter-wave frequencies can be achieved using two-mode and mode-locked discrete mode diode lasers. These edge-emitting devices incorporate a spatially varying refractive index profile which is designed according to the spectral output desired of the laser. We first demonstrate a device which supports two primary modes simultaneously with high spectral purity. In this case sinusoidal modulation of the optical intensity at terahertz frequencies can be obtained. Cross saturation of the material gain in quantum well lasers prevents simultaneous lasing of two modes with spacings in the millimeter-wave region. We show finally that by mode-locking of devices that are designed to support a minimal set of four primary modes, we obtain a sinusoidal modulation of the optical intensity in this frequency region.
description: 6 pages
Clustering in anomalous files of independent particles
Creators: name: Flomenbom, Ophir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The dynamics of classical hard particles in a quasi one-dimensional channel were studied since the 1960s and used for explaining processes in chemistry, physics and biology and in applications. Here we show that in a previously un-described file made of anomalous, independent, particles (with jumping times taken from, ψ_α (t) t^(-1-α), 0
description: main text (13 pages, 4 figures), plus supplementary material (15 pages, 6 figures)
Helium Shell Detonations on Low Mass White Dwarfs as a Possible Explanation for SN 2005E
Creators: name: Waldman, Roni
name: Sauer, Daniel
name: Livne, Eli
name: Perets, Hagai
name: Glasner, Ami
name: Mazzali, Paolo
name: Truran, James W.
name: Gal-Yam, Avishay
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recently several type Ib supernovae (SNe; with the prototypical SN 2005E) have been shown to have atypical properties. These SNe are faint (absolute peak magnitude of ~ -15) and fast SNe that show unique composition. They are inferred to have low ejecta mass (a few tenths of a solar mass) and to be highly enriched in calcium, but poor in silicon elements and nickel. These SNe were therefore suggested to belong to a new class of calcium-rich faint SNe explosions. Their properties were proposed to be the result of helium detonations that may occur on helium accreting white dwarfs. In this paper we theoretically study the scenario of helium detonations, and focus on the results of detonations in accreted helium layers on low mass carbon-oxygen (CO) cores. We present new results from one dimensional simulations of such explosions, including their light curves and spectra. We find that when the density of the helium layer is low enough the helium detonation produces large amounts of intermediate elements, such as calcium and titanium, together with a large amount of unburnt helium. Our results suggest that the properties of calcium-rich faint SNe could indeed be consistent with the helium-detonation scenario on small CO cores. Above a certain density (larger CO cores) the detonation leaves mainly 56Ni and unburnt helium, and the predicted spectrum will unlikely fit the unique features of this class of SNe. Finally, none of our studied models reproduces the bright, fast evolving light curves of another type of peculiar SNe suggested to originate in helium detonations (SNe 1885A, 1939B and 2002bj).
description: 15 pages, 8 figures
Para a história de Torres Vedras: «Emquiriçom que o bispo mandou filhar per razom da lemitaçom que quer fazer antre as egrejas de Torres Vedras»
Creators: name: Lopes, F. Félix
Publisher: name: Lusitania Sacra
Year: 1964

description: Lusitania Sacra, n. 7 (1964)
Tyrannosaurus Osborn 1905
Creators: name: Carr, T. D.
Publisher: name: Zenodo
Year: 1999
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Dinosauria
Tyrannosauridae
Tyrannosaurus

description: I agree with Paul (1988) and Carpenter (1992) that Tarbosaurus is a junior subjective synonym of Tyrannosaurus (contra Rozhdestvensky, 1965). Both species are united by the absence of a lacrimal horn (Carpenter, 1992), inflated descending paroccipital process, transversely-oriented occipital plate, and rostrocaudally restricted basisphenoid recess, among other features. A more detailed treatment of tyrannosaurid systematics is forthcoming.
description: Published as part of Carr, T. D., 1999, Craniofacial ontogeny in Tyrannosauridae (Dinosauria, Coelurosauria), pp. 497-520 in Journal of Vertebrate Paleontology 19 (3) on page 499, DOI: 10.1080/02724634.1999.10011161, http://zenodo.org/record/3372241
description: {"references": ["Paul, G. S. 1988. Predatory Dinosaurs of the World: A Complete Illustrated Guide. Simon and Schuster, New York, 464 pp", "Carpenter, K. 1992. Tyrannosaurids (Dinosauria) of Asia and North America; pp. 250 - 268 in N. Mateer and P. J. Chen (eds.), Aspects of Nonmarine Cretaceous Geology. China Ocean Press, Beijing", "Rozhdestvensky, A. K. 1965. Growth changes in Asian dinosaurs and some problems of their taxonomy. Palaeontological Journal 3: 95 - 109."]}
Deterministic Dynamics and Chaos: Epistemology and Interdisciplinary Methodology
Creators: name: Catsigeras, Eleonora
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 3702, 01A80, 03H10

description: We analyze, from a theoretical viewpoint, the bidirectional interdisciplinary relation between mathematics and psychology, focused on the mathematical theory of deterministic dynamical systems, and in particular, on the theory of chaos. On one hand, there is the direct classic relation: the application of mathematics to psychology. On the other hand, we propose the converse relation which consists in the formulation of new abstract mathematical problems appearing from processes and structures under research of psychology. The bidirectional multidisciplinary relation from-to pure mathematics, largely holds with the "hard" sciences, typically physics and astronomy. But it is rather new, from the social and human sciences, towards pure mathematics.
A comparison of criticism received face-to-face or via text message among young adults : does mode of communication matter?
Creators: name: DeClerck, Drew
Publisher: name: University of British Columbia
Year: 2016

description: The popularity of text messaging has increased dramatically in the last decade, such that most young adults use this form of communication daily. The extent to which negative exchanges over text messaging can impact wellbeing in the same way as face-to-face communication remains unclear. In the computer-mediated communication literature, cues-filtered-out theories predict that the impact of text messaging would be weaker, given its lack of tone and non-verbal cues. However, proponents of the social information processing theory argue that strategies are developed when using a new communication technology resulting in an increased ability to have meaningful communications. According to adaptive structuration theories, individual psychological characteristics also likely play an important role in determining one’s reaction to text messaging, but this has also received little empirical attention. The present study aimed to address the current gaps in the literature by using a laboratory-based experimental paradigm to compare the effects of criticism provided face-to-face and via text message to a no-criticism control group, and to examine the moderating effects of rejection sensitivity and rumination. A total of 170 emerging adults took part in an acute laboratory stressor followed by either: 1) text message criticism (n = 53), 2) face-to-face criticism (n = 58), or 3) no feedback (control; n = 59). Levels of self-reported stress and positive and negative affect were measured at baseline, post-stress-task, and post-feedback. Trait levels of rejection sensitivity and rumination were also assessed post-feedback. Using ANCOVA procedures, it was determined that critical feedback via text message and face-to-face were both associated with significantly lower levels of positive affect compared to the control group (findings related to stress and negative affect were in the expected directions, but were non-significant). No significant moderation effects were found for rejection sensitivity or rumination on the relationship between criticism and subsequent levels of stress or affect. The results suggest that criticism expressed using text messaging can lead to negative emotional outcomes, and at levels similar to face-to-face communication. Future studies would benefit from a more comprehensive assessment of various modes of communication, as well as naturalistic assessment methods, such as intensive longitudinal designs.
Hetaerina caja subsp. dominula Selys 1853
Creators: name: DeMarmels, Jurg
Publisher: name: Zenodo
Year: 1992
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Hetaerina
Hetaerina caja
Hetaerina caja dominula selys, 1853

description: Hetaerina caja dominula Selys, 1853 Material (3 ♂ 1 ♀). - 1 ♂, Rio Mavaca, S of Base Camp; 1 ♂, 1 ♀, Siapa 2. Remarks.- As usual, this species was found along broader water courses. While moderately common along a 10 m broad river in the forest, it was exceedingly numerous on the Mavaca and. Siapa rivers, wich might be up to 50 m wide. H. c. dominula was absent from smaller creeks in the forest where it was replaced by the following two species.
description: Published as part of DeMarmels, Jurg, 1992, Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela, pp. 57-78 in Acta Biologica Venezuelica 14 (1) on page 58, DOI: 10.5281/zenodo.3266063
Conciliorum Oecumenicorum Decreta. Edição do «Centro di Documentazione Istituto per le Scienze Religiose», de Bolonha, executada pela Editorial Herder de Friburgo, 1962; 792 + 72 páginas.
Creators: name: Documentazione, Centro Di
Publisher: name: Lusitania Sacra
Year: 1962

description: Lusitania Sacra, n. 6 (1962)
High Chern number quantum anomalous Hall phases in graphene ribbons with Haldane orbital coupling
Creators: name: Chen, Tsung-Wei
name: Xiao, Zhi-Ren
name: Chiou, Dah-Wei
name: Guo, Guang-Yu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate possible phase transitions among the different quantum anomalous Hall (QAH) phases in a zigzag graphene ribbon under the influence of the exchange field. The effective tight-binding Hamiltonian for graphene is made up of the hopping term, the Kane-Mele and Rashba spin-orbit couplings as well as the Haldane orbital term. We find that the variation of the exchange field results in bulk gap-closing phenomena and phase transitions occur in the graphene system. If the Haldane orbital coupling is absent, the phase transition between the chiral (anti-chiral) edge state $ν=+2$ ($ν=-2$) and the pseudo-quantum spin Hall state ($ν=0$) takes place. Surprisingly, when the Haldane orbital coupling is taken into account, an intermediate QSH phase with two additional edge modes appears in between phases $ν=+2$ and $ν=-2$. This intermediate phase is therefore either the hyper-chiral edge state of high Chern number $ν=+4$ or anti-hyper-chiral edge state of $ν=-4$ when the direction of exchange field is reversed. We present the band structures, edge state wave functions and current distributions of the different QAH phases in the system. We also report the critical exchange field values for the QAH phase transitions.
description: 4 figures
Discovery of Invariants through Automated Theory Formation
Creators: name: Llano, Maria Teresa
name: Ireland, Andrew
name: Pease, Alison
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Refinement is a powerful mechanism for mastering the complexities that arise when formally modelling systems. Refinement also brings with it additional proof obligations -- requiring a developer to discover properties relating to their design decisions. With the goal of reducing this burden, we have investigated how a general purpose theory formation tool, HR, can be used to automate the discovery of such properties within the context of Event-B. Here we develop a heuristic approach to the automatic discovery of invariants and report upon a series of experiments that we undertook in order to evaluate our approach. The set of heuristics developed provides systematic guidance in tailoring HR for a given Event-B development. These heuristics are based upon proof-failure analysis, and have given rise to some promising results.
description: In Proceedings Refine 2011, arXiv:1106.3488
KALLENBERG, O. Carm. Paschalis — Fontes Liturgiae Carmelitanae — Inoestigatio in Decreta, Códices et Proprium Sanctorum. Textus et Studia Histórica Carmelitana, Vol. V. — Romae — Institutum Carmelitanum — 1962. In-8.° (400 pp.).
Creators: name: Bragança, Joaquim O.
Publisher: name: Lusitania Sacra
Year: 1962

description: Lusitania Sacra, n. 6 (1962)
Hetaerina laesa Hagen in Selys 1853
Creators: name: DeMarmels, Jurg
Publisher: name: Zenodo
Year: 1992
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Hetaerina
Hetaerina laesa

description: Hetaerina laesa Hagen in Selys, 1853 Material.. 5 ♂, 5 ♀, Base Camp. Remarks.· Many mote were seen along small sand -bottomed creeks in the forest. Some could be observed away from water on sun-hit bushes.
description: Published as part of DeMarmels, Jurg, 1992, Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela, pp. 57-78 in Acta Biologica Venezuelica 14 (1) on page 58, DOI: 10.5281/zenodo.3266063
The development, validation, and characterization of an ex-vivo porcine full thickness skin model for the study of the subcutaneous compartment
Creators: name: Payne, Jordanna Michelle
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Biomedical imaging
Tissue engineering

description: This dissertation details the creation, validation, and characterization of a porcine ex-vivo culture model to study subcuteneous tissue. The viability of the model was assessed over seven days of culture by digestion and the proliferation and death of cells was monitored by immunohistochmeical labelling and image analysis. The model was then used in a timecourse proteomics experiment to characterize the effect of culture on subcutaneous proteome. The model was then compared to a commercially available human ex-vivo model with respect to viability and changes to the subcutaneous proteome.
Hetaerina moribunda Selys 1853
Creators: name: DeMarmels, Jurg
Publisher: name: Zenodo
Year: 1992
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Hetaerina
Hetaerina moribunda

description: Hetaerina moribunda Selys, 1853 Material. 5♂, 1 ♀, Base Camp. Remark.- This species shows similar habitat preferences as H. laesa .
description: Published as part of DeMarmels, Jurg, 1992, Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela, pp. 57-78 in Acta Biologica Venezuelica 14 (1) on page 58, DOI: 10.5281/zenodo.3266063
The underdog world
Creators: name: Brasil, Daniel Rodrigues
Publisher: name: University of British Columbia
Year: 2016

description: Various communities, including those glossed as traditional, indigenous, subaltern, Afro-descended, tribal, or, in an older vocabulary, primitive, pre-modern, non-civilized, barbaric, and polluted, in particular contexts, can find themselves in a situation I have come to refer as underdogs. Underdog references communities which are positioned to access various levels of historical consciousness in order to mobilize their struggles against impinging, dominant, homogenizing forces. These forces are based in a colonial culture against which communities resist. The strategies of resistance both refer to their traditions and to their historic circumstances, as well as their recognition of historical fluidity which allows them the possibility of facing, encountering and rewriting their histories. This resistance has made them resilient. Ethnographic research conduced together with the quilombola community of Periperi, in the state of Piauí, Brazil; the neighbourhood of La Marina, in Matanzas, Cuba, and the Hwlitsum indigenous people, in British Columbia, Canada shows that these communities in an underdog situation cannot back off from their challenges to existing modes of power of their local and regional setting in their efforts to mitigate their status as polluted. Experiencing being in such situations throughout their trajectory has led these communities to a condition they have not been able to run from, albeit finding new ways to embrace it, in the underdog world they live in.