cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A novel scheduling algorithm for video flows in high-rate WPANs
Creators: name: Moradi, Shahab
Publisher: name: University of British Columbia
Year: 2011

description: The emerging high-rate wireless personal area network (WPAN) technology is capable of supporting high-speed and high-quality real-time multimedia applications. In particular, video streams are deemed to be a widespread traffic type, and require quality of service (QoS) support. However, in the current IEEE 802.15.3 standard for MAC (media access control) of high-rate WPANs, the implementation details of some key issues such as scheduling and QoS provisioning have not been addressed. Moreover, the hierarchical structure of video streams calls for special measures at the MAC layer in order to improve the QoS. In the first part of this thesis, we propose a frame-decodability aware (FDA) technique to make the scheduling algorithms aware of the hierarchical structure and decoding dependencies in video streams. Simulation results show that the FDA technique can significantly improve the performance of F-SRPT [1] and EDD+SRPT [2] schedulers by up to 61% and 60%, respectively. We also compare two common performance metrics and investigate which one is a more accurate indicator of the QoS given to video streams. In the second part of this thesis, we first propose a mathematical model for the optimal scheduling scheme for video flows in high-rate WPANs. Using this model, we then propose a scheduler that incorporates reinforcement learning (RL). Simulation results show that our proposed scheduler is nearly optimal and performs 42%, 49%, and 53% better than EDD+SRPT [2], PAP [3], and F-SRPT [1] schedulers, respectively.
Probing Turbulence in the Coma Galaxy Cluster
Creators: name: Schuecker, P.
name: Finoguenov, A.
name: Miniati, F.
name: Boehringer, H.
name: Briel, U. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spatially-resolved gas pressure maps of the Coma galaxy cluster are obtained from a mosaic of XMM-Newton observations in the scale range between a resolution of 20 kpc and an extent of 2.8 Mpc. A Fourier analysis of the data reveals the presence of a scale-invariant pressure fluctuation spectrum in the range between 40 and 90 kpc and is found to be well described by a projected Kolmogorov/Oboukhov-type turbulence spectrum. Deprojection and integration of the spectrum yields the lower limit of $\sim 10$ percent of the total intracluster medium pressure in turbulent form. The results also provide observational constraints on the viscosity of the gas.
description: 12 pages, 13 figures (low resolution), version accepted by Astron. Astrophys
Characterizations of modalities and lex modalities
Creators: name: Christensen, J. Daniel
name: Rijke, Egbert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 03B38, 03B45, 55P60, 18N55, 18N60

description: A reflective subuniverse in homotopy type theory is an internal version of the notion of a localization in topology or in the theory of $\infty$-categories. Working in homotopy type theory, we give new characterizations of the following conditions on a reflective subuniverse $L$: (1) the associated subuniverse $L'$ of $L$-separated types is a modality; (2) $L$ is a modality; (3) $L$ is a lex modality; and (4) $L$ is a cotopological modality. In each case, we give several necessary and sufficient conditions. Our characterizations involve various families of maps associated to $L$, such as the $L$-étale maps, the $L$-equivalences, the $L$-local maps, the $L$-connected maps, the unit maps $η_X$, and their left and/or right orthogonal complements. More generally, our main theorem gives an overview of how all of these classes related to each other. We also give examples that show that all of the inclusions we describe between these classes of maps can be strict.
description: 26 pages; v2 improves the intro and has a few minor updates
Schistoloma Kobelt 1902
Creators: name: Páll-Gergely, Barna
name: Nguyen, Phi Khanh
name: Chen, Yansen
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Pupinidae
Schistoloma

description: Genus Schistoloma Kobelt, 1902
 Schistoloma Kobelt, 1902: 298 (nom. nov. pro Coptocheilus Gould, 1862).
 Pinteria Varga, 1972: 134 (type species: Pinteria croesus Varga, 1972, by original designation)
 Schistoloma (Hololoma) Bartsch, 1916: 195 (type species: Megalomastoma quadrasi Hidalgo, 1889, by monotypy).
 Type species. Cyclostoma altum Sowerby, 1842 by original designation.
 Diagnosis. Shell high conical to elongate oviform, sculpture mostly smooth, rarely ribbed, periumbilical keel present or absent, aperture rounded without any tubes or slits, operculum corneous, multispiral, the individual coils overlap with each other and fuse only at their centre.
 Remarks. It is obvious that the Vietnamese members of Schistoloma can be divided into two groups. Namely, one with a periumbilical keel (S. cochinchinense, S. messageri) and one without (S. inermis, S. maydelineae new species). The presence or absence of this character has been used as a distinguishing mark on the genus level in other pupinid genera (Páll-Gergely et al., 2015). In the Philippine members of this genus however, there is a continuous variability between those two types. Therefore, it is not suggested to subdivide the genus based on this character at the moment. The subgenus Hololoma Bartsch, 1916 is said to have a narrow slit in the upper edge of the aperture, but this character is not clear in the illustrations of Bartsch (1916). Even if a slight slit is present in some species, it might not be sensible to split the genus based on this character with our current understanding, especially because this is only the edge of the distribution of the genus, and it is unlikely that the nominal genus has an extremely wide distribution. Given the large geographical area and the simple shell, it is possible that the genus Schistoloma is a group of species with plesiomorphic characters, and therefore, not monophyletic. Keeled species might be phylogenetically closer to Tortulosa Gray, 1847, than to non-keeled Schistoloma species.
description: Published as part of Páll-Gergely, Barna, Nguyen, Phi Khanh & Chen, Yansen, 2019, A review of Vietnamese Schistoloma Kobelt, 1902 with a list of all known species of the genus (Caenogastropoda: Cyclophoroidea: Pupinidae), pp. 322-327 in Raffles Bulletin of Zoology 67 on pages 322-323, DOI: 10.26107/RBZ-2019-0023, http://zenodo.org/record/4577058
A cold atom temporally multiplexed quantum memory with cavity-enhanced noise suppression
Creators: name: Heller, Lukas
name: Farrera, Pau
name: Heinze, Georg
name: de Riedmatten, Hugues
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Future quantum repeater architectures, capable of efficiently distributing information encoded in quantum states of light over large distances, will benefit from multiplexed photonic quantum memories. In this work we demonstrate a temporally multiplexed quantum repeater node in a laser-cooled cloud of $^{87}$Rb atoms. We employ the DLCZ protocol where pairs of photons and single collective spin excitations (so called spin waves) are created in several temporal modes using a train of write pulses. To make the spin waves created in different temporal modes distinguishable and enable selective readout, we control the dephasing and rephasing of the spin waves by a magnetic field gradient, which induces a controlled reversible inhomogeneous broadening of the involved atomic hyperfine levels. We demonstrate that by embedding the atomic ensemble inside a low finesse optical cavity, the additional noise generated in multi-mode operation is strongly suppressed. By employing feed forward readout, we demonstrate distinguishable retrieval of up to 10 temporal modes. For each mode, we prove non-classical correlations between the first and second photon. Furthermore, an enhancement in rates of correlated photon pairs is observed as we increase the number of temporal modes stored in the memory. The reported capability is a key element of a quantum repeater architecture based on multiplexed quantum memories.
Cayley--Klein Contractions of Quantum Orthogonal Groups in Cartesian Basis
Creators: name: Gromov, N. A.
name: Kuratov, V. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Spaces of constant curvature and their motion groups are described most naturally in Cartesian basis. All these motion groups also known as CK groups are obtained from orthogonal group by contractions and analytical continuations. On the other hand quantum deformation of orthogonal group $SO(N) $ is most easily performed in so-called symplectic basis. We reformulate its standard quantum deformation to Cartesian basis and obtain all possible contractions of quantum orthogonal group $SO_q(N)$ both for untouched and transformed deformation parameter. It turned out, that similar to undeformed case all CK contractions of $SO_q(N)$ are realized. An algorithm for obtaining nonequivalent (as Hopf algebra) contracted quantum groups is suggested. Contractions of $SO_q(N), N=3,4,5$ are regarded as an examples.
description: The statement of the basic theorem have correct. 30 pages, Latex. Report given at X International Conference on Symmetry Methods in Physics, August 13-19, 2003, Yerevan, Armenia. Submitted in Journal Physics of Atomic Nuclei
Distinct Topological Surface States on the Two Terminations of MnBi$_4$Te$_7$
Creators: name: Wu, Xuefeng
name: Li, Jiayu
name: Ma, Xiao-Ming
name: Zhang, Yu
name: Liu, Yuntian
name: Zhou, Chun-Sheng
name: Shao, Jifeng
name: Wang, Qiaoming
name: Hao, Yu-Jie
name: Feng, Yue
name: Schwier, Eike F.
name: Kumar, Shiv
name: Sun, Hongyi
name: Liu, Pengfei
name: Shimada, Kenya
name: Miyamoto, Koji
name: Okuda, Taichi
name: Wang, Kedong
name: Xie, Maohai
name: Chen, Chaoyu
name: Liu, Qihang
name: Liu, Chang
name: Zhao, Yue
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The recent discovered intrinsic magnetic topological insulator MnBi2Te4 have been met with unusual success in hosting emergent phenomena such as the quantum anomalous Hall effect and the axion insulator states. However, the surface-bulk correspondence of the Mn-Bi-Te family, composed by the superlattice-like MnBi2Te4/(Bi2Te3)n (n = 0, 1, 2, 3 ...) layered structure, remains intriguing but elusive. Here, by using scanning tunneling microscopy (STM) and angle-resolved photoemission spectroscopy (ARPES) techniques, we unambiguously assign the two distinct surface states of MnBi4Te7 (n = 1) to the quintuple-layer (QL) Bi2Te3 termination and the septuple-layer (SL) MnBi2Te4 termination, respectively. A comparison of the experimental observations with theoretical calculations reveals the diverging topological behaviors, especially the hybridization effect between magnetic and nonmagnetic layers, on the two terminations: a gap on the QL termination originating from the topological surface states of the QL hybridizing with the bands of the beneath SL, and a gapless Dirac-cone band structure on the SL termination with time-reversal symmetry. The quasi-particle interference patterns further confirm the topological nature of the surface states for both terminations, continuing far above the Fermi energy. The QL termination carries a spin-helical Dirac state with hexagonal warping, while at the SL termination, a strongly canted helical state from the surface lies between a pair of Rashba-split states from its neighboring layer. Our work elucidates an unprecedented hybridization effect between the building blocks of the topological surface states, and also reveals the termination-dependent time-reversal symmetry breaking in a magnetic topological insulator, rendering an ideal platform to realize the half-integer quantum Hall effect and relevant quantum phenomena.
description: 22 Pages, 4 Figures
A quantitative multiparameter mean ergodic theorem
Creators: name: Sipos, Andrei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 37A30, 47A35, 03F10

description: We use techniques of proof mining to obtain a computable and uniform rate of metastability (in the sense of Tao) for the mean ergodic theorem for a finite number of commuting linear contractive operators on a uniformly convex Banach space.
Cold seep deposits of Beauvoisin (Oxfordian southeastern France) and Marmorito (Miocene northern Italy) Microbially induced authigenic carbonates
Creators: name: Peckmann, J.
name: Thiel, V.
name: Michaelis, Walter
name: Clari, P.
name: Gaillard, C.
name: Martire, L.
name: Reitner, Joachim
Publisher: name: FID GEO
Year: 1999

description: research
The Gutzwiller wave function as a disentanglement prescription
Creators: name: Sunko, D. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Gutzwiller variational wave function is shown to correspond to a particular disentanglement of the thermal evolution operator, and to be physically consistent only in the temperature range U<
description: Final version as accepted in EPJ B, 10 pages, no figures
Applied automated numerical avalanche forecasting using electronic weather sensor data
Creators: name: Cordy, Paul David
Publisher: name: University of British Columbia
Year: 2011

description: Numerical avalanche prediction was used for Canadian highways avalanche forecasting for ten years before changes in information technology infrastructure rendered the original numerical avalanche forecasting model incompatible and therefore obsolete. Now these efforts are being renewed with greater automation by the use of electronic weather sensor data. Use of this data presents several challenges and opportunities. Automated hourly observations generate large datasets that require systems for filtering historic and current data; as well as fitness testing routines that dynamically extract independent validation samples from serially correlated datasets. These weather sensor data manipulation systems offer several advantages over traditional avalanche prediction models that are based on manually observed weather and surface snow information. Rapid dataset generation enables spatial scaling of predictions, easy generation and testing of memory variables, model comparison, and visual verification of predicted avalanche probability time series. These features will facilitate operational implementation of avalanche forecasting models for applied computer assisted avalanche forecasting-in highways avalanche control programs across British Columbia, Canada. In the winter of 2006/7, the Avalanche Forecast System (AFS) was applied in two avalanche prone transportation corridors. The AFS uses only electronic weather sensor data and incorporates all of the aforementioned capabilities. A nearest neighbour analysis is used to generate avalanche probabilities, however the AFS data management systems could also be made to operate with classical linear and modern non-linear statistical prediction methods. Automated filters eliminate erroneous data dynamically, permit investigation of various prediction targets (such as natural avalanche occurrences, or avalanches of different size classes), and a jackknife cross-validation routine generates fitness statistics by selecting test cases that are not temporally autocorrelated. The AFS was applied operationally in Kootenay Pass, near Salmo, BC, and also at Bear Pass, near Stewart, BC, where accuracy of 76% +/-2% and 71% +/-2% were achieved respectively.
On the hypotheses of Penrose's singularity theorem under disformal transformations
Creators: name: Bittencourt, Eduardo
name: Carvalho, Gabriel G.
name: Lobo, Iarley P.
name: Santana, Leandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We analyze how the hypotheses of Penrose's singularity theorem (1965) are modified by the action of disformal transformations (defined in terms of light-like vectors) upon a given space-time metric. In particular, we investigate the transformation of the null energy condition and the existence of closed trapped surfaces in such scenario, in order to derive conditions upon the background metric and the disformal vector that guarantee the validity of Penrose's theorem for disformal metrics. Then, we explain how to apply this technique for static and spherically symmetric space-times in general.
description: 10 pages, 3 figures
Front Matter - BACKGROUND PAPERS FOR DISCUSSION AT THE INTERNATIONAL SEMINAR ON "COMPARATIVE EXPERIENCE OF AGRICULTURAL DEVELOPMENT IN DEVELOPING COUNTRIES SINCE WORLD WAR II"
Creators: name: Dantwala, M.L.
name: Dantwala, M.L.
Publisher: name: Unknown
Year: 1971
Subjects: Agricultural and Food Policy
International Development
Production Economics
Research and Development/Tech Change/Emerging Technologies

description: BACKGROUND PAPERS FOR DISCUSSION AT THE INTERNATIONAL SEMINAR ON "COMPARATIVE EXPERIENCE OF AGRICULTURAL DEVELOPMENT IN DEVELOPING COUNTRIES SINCE WORLD WAR II" NEW DELHI 25th, 26th, 27th and 28th OCTOBER. 1971 THE INDIAN SOCIETY OF AGRICULTURAL ECONOMICS 46-48, Esplanade Mansions, Mahatma Gandhi Road, Fort, BOMBAY-I.
Fortune-Tellers and Telling Sympathies: Innovations of Caravaggio's Fortune-Teller
Creators: name: Allegretto, Kari Anna
Publisher: name: American University
Year: 2023

description: Within art the Romani presence has been frequently seen but rarely observed. Historians and casual viewers alike have seen that the palm reader in many fortune-teller paintings of the Renaissance and Baroque periods is a Romani woman, yet rarely is the presence observed. The portrayal of the Romani, and its revelation of their perception during this time, is never deeply explored. The observation of these early painted Romanies reveals a stark difference between Caravaggio's 1594 Fortune-Teller and the works that followed in the wake of the painting's popularity. Caravaggio painted a sympathetic portrayal of the Romani, a choice that defied common expectations of the time both in the visual arts and in society.
Stress-Induced Dinoflagellate Bioluminescence at the Single Cell Level
Creators: name: Jalaal, Maziyar
name: Schramma, Nico
name: Dode, Antoine
name: de Maleprade, Helene
name: Raufaste, Christophe
name: Goldstein, Raymond E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: One of the characteristic features of many marine dinoflagellates is their bioluminescence, which lights up nighttime breaking waves or seawater sliced by a ship's prow. While the internal biochemistry of light production by these microorganisms is well established, the manner by which fluid shear or mechanical forces trigger bioluminescence is still poorly understood. We report controlled measurements of the relation between mechanical stress and light production at the single-cell level, using high-speed imaging of micropipette-held cells of the marine dinoflagellate $Pyrocystis~lunula$ subjected to localized fluid flows or direct indentation. We find a viscoelastic response in which light intensity depends on both the amplitude and rate of deformation, consistent with the action of stretch-activated ion channels. A phenomenological model captures the experimental observations.
description: 6 pages, 5 figures plus 4 pages of Supplementary Material with 4 figures; videos available on website of REG
Fortune-Tellers and Telling Sympathies: Innovations of Caravaggio's Fortune-Teller
Creators: name: Allegretto, Kari Anna
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Within art the Romani presence has been frequently seen but rarely observed. Historians and casual viewers alike have seen that the palm reader in many fortune-teller paintings of the Renaissance and Baroque periods is a Romani woman, yet rarely is the presence observed. The portrayal of the Romani, and its revelation of their perception during this time, is never deeply explored. The observation of these early painted Romanies reveals a stark difference between Caravaggio's 1594 Fortune-Teller and the works that followed in the wake of the painting's popularity. Caravaggio painted a sympathetic portrayal of the Romani, a choice that defied common expectations of the time both in the visual arts and in society.
Convex-roof extended negativity as an entanglement measure for bipartite quantum systems
Creators: name: Lee, Soojoon
name: Chi, Dong Pyo
name: Oh, Sung Dahm
name: Kim, Jaewan
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend the concept of the negativity, a good measure of entanglement for bipartite pure states, to mixed states by means of the convex-roof extension. We show that the measure does not increase under local quantum operations and classical communication, and derive explicit formulae for the entanglement measure of isotropic states and Werner states, applying the formalism presented by Vollbrecht and Werner [Phys. Rev. A {\bf 64}, 062307 (2001)].
description: 6 pages; accepted for publication in Physical Review A
PLANTING CONFLICT OR CULTIVATING PEACE: ASSESSING THE PEACE-BUILDING FUNCTIONS OF THE LAND TENURE REFORM ENVIRONMENT IN POST-CONFLICT COMMUNITIES
Creators: name: Ayuk-Takor, Lindsey
Publisher: name: American University
Year: 2023

description: Land tenure conflicts are increasingly gaining attention in the field of international development and conflict resolution. The literature on the subject indicates that effective land tenure environments can be used as peace-building initiatives in post-conflict societies by addressing the issues leading to land tenure conflict. The land tenure environment has been found to be made up of issues related to access to land, land administration systems and tenure security. The first step towards exploring programs aimed at improving access to land for landless populations have driven former beneficiaries back to the conditions and situations that created conflict in the first place. Land administration institutions are weak and inefficient, often registering land improperly, causing disagreements on land ownership. Land tenure insecurity is encouraged through weak land rights and the mechanisms in place to make claims over land. Quantitative analysis of the land tenure environment seems to confirm their negative effect on Conflict in Brazil. In this case, the land tenure environment has been ineffective as a peace-building tool in post-conflict communities.
APPROACHES TO MAINTAIN SWEET POTATO YIELDS IN MIXTURES WITH CORN
Creators: name: Roberts-Nkrumah, Laura B.
name: Ferguson, Theodore U.
name: Wilson, Lawrence A.
name: Roberts-Nkrumah, Laura B.
name: Ferguson, Theodore U.
name: Wilson, Lawrence A.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Four field trials were conducted to examine the effect of various management practices on sweet potato yield in the sweet potato x corn mixture. The results showed that sweet potato marketable yields were significantly lowered when intercropped with simultaneously planted corn. Sweet potato planted before corn, however, was able to attain yields similar to those of the pure stand. Significant cultivar differences in the ability to tolerate intercropping with corn were demonstrated also, but this ability varied with corn planting data and with season. Cultivar responses reflected differing degrees to tolerance for limited availability of growth factors such as light and water to tolerate intercropping with simultaneously planted corn.
Anatomy of a quantum `bounce'
Creators: name: Doncheski, M. A.
name: Robinett, R. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss some of the properties of the `collision' of a quantum mechanical wave packet with an infinitely high potential barrier, focusing on novel aspects such as the detailed time-dependence of the momentum-space probability density and the time variation of the uncertainty principle product $Δx_t \cdot Δp_t$. We make explicit use of Gaussian-like wave packets in the analysis, but also comment on other general forms.
description: 13 pages, 5 separate .ps figures
Improving electrical properties of ferroelectric thin films by ultraviolet radiation
Creators: name: Alford, Neil McN.
name: Gagarin, Aleksandr G.
name: Kozyrev, Andrey B.
name: Petrov, Peter Kr.
name: Sokolov, Aleksandr I.
name: Soldatenkov, Oleg I.
name: Volpyas, Valery A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ferroelectric films in the paraelectric phase exhibit two undesirable properties: hysteresis in the voltage-capacitance characteristics and a significant relaxation time of the capacitance. Our experiments show that suppression of both of these is achieved by using ultraviolet (UV) radiation with wavelengths corresponding to the material forbidden gap. Experimentally we also observed UV radiation induced modulation of thin film permittivity without an applied electric field. The observed phenomena are believed to have the same origin: UV light causes generation of non-equilibrium charge carriers and space charge redistribution inside thin ferroelectric films.
description: 7 pages, 3 figures, submitted to Applied Physics Letters
One-meson-loop NJL model: Effect of collective and noncollective excitations on the quark condensate at finite temperature
Creators: name: Pereira, Renan Câmara
name: Costa, Pedro
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We explore the effect of including quantum fluctuations in the two flavor Nambu$-$Jona-Lasinio model at finite temperature. This is accomplished, in a symmetry preserving way, by including collective and noncollective modes in the one-meson-loop gap equation which originate from poles and branch cuts in the complex plane, respectively. The inclusion of a boson cutoff, $Λ_b$, is necessary to regularize the meson-loop momenta. This new parameter is used to study the influence of going beyond the usual mean field approximation in the quark condensate. As the temperature increases, chiral symmetry tends to get restored, the collective modes melt and only noncollective modes contribute to the quark condensate. With the inclusion of such modes, the quark condensate at finite temperature has a different behavior than at mean field level that will be explored.
Neural network parametrization of spectral functions from hadronic tau decays and determination of QCD vacuum condensates
Creators: name: Rojo, Joan
name: Latorre, Jose I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The spectral function $ρ_{V-A}(s)$ is determined from ALEPH and OPAL data on hadronic tau decays using a neural network parametrization trained to retain the full experimental information on errors, their correlations and chiral sum rules: the DMO sum rule, the first and second Weinberg sum rules and the electromagnetic mass splitting of the pion sum rule. Nonperturbative QCD vacuum condensates can then be determined from finite energy sum rules. Our method minimizes all sources of theoretical uncertainty and bias producing an estimate of the condensates which is independent of the specific finite energy sum rule used. The results for the central values of the condensates $O_6$ and $O_8$ are both negative.
description: 29 pages, 18 ps figures
PLANTING CONFLICT OR CULTIVATING PEACE: ASSESSING THE PEACE-BUILDING FUNCTIONS OF THE LAND TENURE REFORM ENVIRONMENT IN POST-CONFLICT COMMUNITIES
Creators: name: Ayuk-Takor, Lindsey
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society

description: Land tenure conflicts are increasingly gaining attention in the field of international development and conflict resolution. The literature on the subject indicates that effective land tenure environments can be used as peace-building initiatives in post-conflict societies by addressing the issues leading to land tenure conflict. The land tenure environment has been found to be made up of issues related to access to land, land administration systems and tenure security. The first step towards exploring programs aimed at improving access to land for landless populations have driven former beneficiaries back to the conditions and situations that created conflict in the first place. Land administration institutions are weak and inefficient, often registering land improperly, causing disagreements on land ownership. Land tenure insecurity is encouraged through weak land rights and the mechanisms in place to make claims over land. Quantitative analysis of the land tenure environment seems to confirm their negative effect on Conflict in Brazil. In this case, the land tenure environment has been ineffective as a peace-building tool in post-conflict communities.
EVALUATION OF TOMATO BREEDING LINES FOR RESISTANCE TO Sclerotium rolfsii AND CONTROL OF SOUTHERN BLIGHT OF VEGETABLES
Creators: name: Bonsi, C.K.
name: Rhoden, E.G.
name: Stevens, C.
name: Khan, V.
name: Bonsi, C.K.
name: Rhoden, E.G.
name: Stevens, C.
name: Khan, V.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Results of experiments conducted to evaluate several tomato breeding lines for resistance to S. rolfsii showed that tomatoes carry very little resistance to this pathogen. However, Lycopersicon piepinellifoliu· and some of its breeding lines were found to be resistant. Crop rotation using resistant or tolerant bell and hot pepper and bambara groundnut varieties significantly reduced the incidence of disease on subsequent tomato crop. Foliar applications of Bravo at 1 or 2 1 ha~l and Dithane M-45 at 1.2 and 2.4 kg ha"l to control early blight reduced the disease incidence of southern blight and^ significantly increased yields of tomatoes. Applications of Tilt, PL- ( 2, 4-dichlorophenyI) -4-propyl -1,3-dioxolam-2-yl_/ me thy 1/-1H-1,2,4-triazole) in both greenhouse and field studies reduced the incidence and severity of the disease on sweet banana peppers. Although plants showed phytotoxicity when dipped in solutions of Tilt, fairly good control was achieved if plants were inoculated 2 or more weeks after dipping in the fungicide solution before transplanting.
Interchange aspects of rail terminal IFBC Mumbai India
Creators: name: Smart, Hameer Hamir
Publisher: name: University of British Columbia
Year: 2011

description: Since the opening of the world's first railway line the Stockton and Darlington Railway in 1825, railways and rail stations have always maintained an important role in public life. Railways and rail stations have always played the role of being catalysts for urban development and growth. Many stations worldwide are magnificent architectural creations. Railways and rail stations have played an important role in the growth and development of Mumbai city . This thesis tries to investigate the issue of how railways and rail station can still be a catalyst for urban growth and renewal. The historic Victoria Terminus, being the birthplace of Indian Railways, has been selected for this case study. A photographic study conducted for the whole day at various exit points of Victoria Terminus reveals a unique pattern of activities in and outside the Victoria Terminus. These activities are so unique that they can be identified as the train culture of Mumbai . These activities and their relation to the rail station are responsible for making the station and its surroundings a very vibrant and thriving urban area. A proposed elevated railway line passing through the International Business and Finance Center and its proposed rail station in the complex, has been selected as a project site for the thesis. Architectural design and design process of rail station is used to study the potentials of the rail station for being a catalyst of urban growth and development. An urban diagram will show how a railway station can influence urban renewal and growth, and how it can help development of surrounding areas. Two stations, Victoria Terminus with its historical significance, and Interchange, the contemporary and newly proposed elevated railway station, are compared and seen as equally important. Victoria Terminus still standing tall as a vibrant urban center and Interchange station represents the new and contemporary face of Mumbai, preserving the train culture of Mumbai and benefiting from the urban issues of Victoria Terminus will ensure a thriving urban center and catalyst for urban growth.
INFLUENCE OF ATHOSPHERIC CARBON DIOXIDE ENRICHMENT ON THE PRODUCTION AND BIOCHEMICAL COMPOSITION OF ROOTS OF SWEET POTATO
Creators: name: Biswas, P.V.
name: Bhattacharya, N.C.
name: Ghosh, P.P.
name: Hileman, D.R.
name: Biswas, P.V.
name: Bhattacharya, N.C.
name: Ghosh, P.P.
name: Hileman, D.R.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Sweet potato (Ipomoea batatas (1.) Lam., 'Georgia Jet') plants were grown in open field plots and open top chambers at C02 concentrations of 354, 431, 506, and 659 µll-1 during May to August, 1984. The plants were harvested at 92 days of growth and the different plant parts were separated. The number of tubers per plant increased significantly with an increase in CO2 concentrations. However, the density, volume, and mean length of US #1, 2, canner, cull or jumbo roots did not show any significant differences with elevated C02 concentrations. Starch content in sweet potato roots increased significantly in plants grown at 431 and 506 µll-1 COZ. The percentage of sucrose, soluble amino acids, and proteins decreased with an increase in C02 enrichment and were most noticeable at 659 µll-1 C02 atmosphere.
title: The education of deaf children in Zimbabwe: the changing roles of non governmental organisations, the government and international organisations
Creators: name: Barcham, Lesley
Publisher: name: The Open University
Year: 1997

description: In this thesis I describe and analyse the development of education for deaf children in Zimbabwe, from its beginnings in the 1940s to 1994. I investigate in detail the changing policies and provision of non governmental organisations, the government and international organisations. The thesis is divided into three sections. The first section examines the literature relating to deaf education in Zimbabwe. the role of international organisations and the changes from charity to government provision. I introduce four propositions developed from the literature about, first the internationalisation of the debates about deaf education provision, second the limitation of charitable provision. third the struggles between interest groups and finally the influence of organisations of deaf people. I analyse the case study methodology used to investigate policies and practices. The second section describes the changes in the education for deaf children from the 1940s to 1994. I examine the early role of churches and charities and the gradual increase of government involvement. This section also plots the complex relationships between the government, non governmental and international organisations in the development of policy and practice. In the third and final section I return to the four original propositions and discuss the key findings relating to the changes in international policies and funding, the growing influence of deaf peoples organisations and reactive nature of government policies.
Schistoloma mcgregori Bartsch 1916
Creators: name: Páll-Gergely, Barna
name: Nguyen, Phi Khanh
name: Chen, Yansen
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Pupinidae
Schistoloma
Schistoloma mcgregori

description: Schistoloma mcgregori Bartsch, 1916
 Schistoloma (Schistoloma) mcgregori mcgregori Bartsch, 1916: 200, plate 51, figs. 2, 4.
 Schistoloma (Schistoloma) mcgregori tablasensis Bartsch, 1916: 201. new synonym
 Schistoloma (Schistoloma) mcgregori webbi Bartsch, 1916: 202. new synonym
 Type locality. “ Semarara Island ” (for the nominotypical subspecies).
 Remarks. We have not examined the type specimens, but based on the descriptions it became obvious that the differences are so slight (only differing in colour of peristome), that the subspecies of Bartsch (1916) cannot be maintained.
description: Published as part of Páll-Gergely, Barna, Nguyen, Phi Khanh & Chen, Yansen, 2019, A review of Vietnamese Schistoloma Kobelt, 1902 with a list of all known species of the genus (Caenogastropoda: Cyclophoroidea: Pupinidae), pp. 322-327 in Raffles Bulletin of Zoology 67 on page 326, DOI: 10.26107/RBZ-2019-0023, http://zenodo.org/record/4577058
Fourier coefficients of the overconvergent generalized eigenform associated to a CM form
Creators: name: Hsu, Chi-Yun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let f be a modular form with complex multiplication. If f has critical slope, then Coleman's classicality theorem implies that there is a p-adic overconvergent generalized Hecke eigenform with the same Hecke eigenvalues as f. We give a formula for the Fourier coefficiets of this generalized Hecke eigenform. We also investigate the dimension of the generalized Hecke eigenspace of p-adic overconvergent forms containing f.
description: 11 pages. Accepted by Int. J. Number Theory
How classical are TeV-scale black holes?
Creators: name: Cavaglia, Marco
name: Das, Saurya
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the Hawking temperature and the entropy of black holes are subject to corrections from two sources: the generalized uncertainty principle and thermal fluctuations. Both effects increase the temperature and decrease the entropy, resulting in faster decay and ``less classical'' black holes. We discuss the implications of these results for TeV-scale black holes that are expected to be produced at future colliders.
description: 10 pages, no figures, REVTeX style. Extra comments and references to match version accepted to Classical and Quantum Gravity
Aiding and Abetting: The Influence of Foreign Assistance on Incumbent Advantage in Africa
Creators: name: Briggs, Ryan C.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: Can changes in foreign aid influence incumbent advantage in aid-recipient countries? This dissertation suggests that in post-Cold War Africa, the answer is yes. The argument rests on a cross-national analysis of all African elections between 1990 and 2006 and three case studies of African elections. The cross-national analysis demonstrates a durable correlation between changes in aid and incumbent advantage. Case studies of elections in Ghana in 2000, Malawi in 1999, and Kenya in 1992 present subnational confirmation of the main findings and flush out the mechanisms that link aid changes to incumbent advantage. The dissertation thus demonstrates that foreign aid volatility influences election results in Africa, that aid recipients often are able to use an electoral logic to strategically target aid, and that African voters are influenced by the provision of goods and services.
COMPOSITION AND MANAGEMENT STUDIES OF NATIVE PASTURES IN THE U. S. VIRGIN ISLANDS
Creators: name: Michaud, P. Joy
name: Michaud, Michael
name: Michaud, P. Joy
name: Michaud, Michael
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Native pastures that are dominated by the local guinea grass are common throughout St. Croix. This is a highly productive grass, well adapted to St. Croix conditions and should, therefore, be considered as a valuable resource to the island's livestock industry. Through mismanagement, however, many pastures have deteriorated to the point where hurricane grass has taken over. If the remaining pastures are to be maintained in a productive state, management criteria must be established. Cutting heights and frequencies are being studied to help maintain the integrity of these high producing swards, while surveys are being conducted to monitor changes in species composition.
title: Smooth regression quantile estimation
Creators: name: Yu, Keming
Publisher: name: The Open University
Year: 1997

description: In this thesis, attention will be mainly focused on the local linear kernel regression quantile estimation. Different estimators within this class have been proposed, developed asymptotically and applied to real applications. I include algorithmdesign and selection of smoothing parameters. Chapter 2 studies two estimators, first a single-kernel estimator based on "check function" and a bandwidth selection rule is proposed based on the asymptotic MSE of this estimator. Second a recursive double-kernel estimator which extends Fan et al's (1996) density estimator, and two algorithms are given for bandwidth selection. In Chapter 3, a comparison is carried out of local constant fitting and local linear fitting using MSEs of the estimates as a criterion. Chapter 4 gives a theoretical summary and a simulation study of local linear kernel estimation of conditional distribution function. This has a special interest in itself as well as being related to regression quantiles. In Chapter 5, a kernel-version method of LMS (Cole and Green, 1992) is considered. The method proposed, which is still a semi-parametric one, is based on a general idea of local linear kernel approach of log-likelihood model. Chapter 6 proposes a two-step method of smoothing regression quantiles called BPK. The method considered is based on the idea of combining k- NN method with Healy's et al (1988) partition rule, and correlated regression model are involved. In Chapter 7, methods of regression quantile estimation are compared for different underlying models and design densities in a simulation study. The ISE criterion of interior and boundary points is used as a basis for these comparisons. Three methods are recommended for quantile regression in practice, and they are double kernel method, LMS method and Box partition kernel method (BPK). In Chapter 8, attention is turned to a novel idea of local polynomial roughness penalty regression model, where a purely theoretical framework is considered.
Time-Dependent Partition-Free Approach in Resonant Tunneling Systems
Creators: name: Stefanucci, Gianluca
name: Almbladh, Carl-Olof
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An extended Keldysh formalism, well suited to properly take into account the initial correlations, is used in order to deal with the time-dependent current response of a resonant tunneling system. We use a \textit{partition-free} approach by Cini in which the whole system is in equilibrium before an external bias is switched on. No fictitious partitions are used. Besides the steady-state responses one can also calculate physical dynamical responses. In the noninteracting case we clarify under what circumstances a steady-state current develops and compare our result with the one obtained in the partitioned scheme. We prove a Theorem of asymptotic Equivalence between the two schemes for arbitrary time-dependent disturbances. We also show that the steady-state current is independent of the history of the external perturbation (Memory Loss Theorem). In the so called wide-band limit an analytic result for the time-dependent current is obtained. In the interacting case we propose an exact non-equilibrium Green function approach based on Time Dependent Density Functional Theory. The equations are no more difficult than an ordinary Mean Field treatment. We show how the scattering-state scheme by Lang follows from our formulation. An exact formula for the steady-state current of an arbitrary interacting resonant tunneling system is obtained. As an example the time-dependent current response is calculated in the Random Phase Approximation.
description: final version, 18 pages, 9 figures
Interplay between degree and Boolean rules in the stability of Boolean networks
Creators: name: Min, Byungjoon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Empirical evidence has revealed that biological regulatory systems are controlled by high-level coordination between topology and Boolean rules. In this study, we study the joint effects of degree and Boolean functions on the stability of Boolean networks. To elucidate these effects, we focus on i) the correlation between the sensitivity of Boolean variables and the degree, and ii) the coupling between canalizing inputs and degree. We find that negatively correlated sensitivity with respect to local degree enhances the stability of Boolean networks against external perturbations. We also demonstrate that the effects of canalizing inputs can be amplified when they coordinate with high in-degree nodes. Numerical simulations confirm the accuracy of our analytical predictions at both the node and network levels.
description: 7 pages, 4 figures
Compositions
Creators: name: Samandari, Farshid
Publisher: name: University of British Columbia
Year: 2011

description: The thesis for the Master of Music degree in Composition consists of live performances of original works composed during graduate study. The student is expected to have written and have performed approximately an hour of music for various media. My compositions were performed on: Apogee on November 10, 2005, by Mark McGregor in Recital Hall. Prelude to Certitude on April 3, 2006, by VSO in Orpheum. Of Life and Love on March 18, 2006 by Turning Point Ensemble in Western Front. Asheghaneh on September 30, 2006 by VICO IN Chan Center. Beyond on March 31 2007 by Morgan Zentner in Recital Hall. This compilation, despite the variety of medium, clearly represents my interest in contemporary classical vocabulary, spectral analysis, and extended techniques, as well as the precious universal heritage of ethnic music. Shapes and forms of these pieces though representative of contemporary composition, has aesthetic roots in various ethnic arts, especially in their frequent use of non-western ratios. The pitch material despite its occasional resemblance to existing traditional music is derived from synthetic modes, which combines a number of divergent elements including Indian raga, Persian gushe and Varesian techniques. I have adapted a harmonic language, which is derived from spectral analysis of few Persian instruments, including Tar and Santur. This bimodal harmonic language is often ornated with a modal counterpoint, which has its roots in different ethnic modes. In other words, not only the structure and plan but also the content of these pieces conveys intercultural elements.