cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Complete classification of trapping coins for quantum walks on the 2D square lattice
Creators: name: Kollár, Bálint
name: Gilyén, András
name: Tkáčová, Iva
name: Kiss, Tamás
name: Jex, Igor
name: Štefaňák, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the unique features of discrete-time quantum walks is called trapping, meaning the inability of the quantum walker to completely escape from its initial position, albeit the system is translationally invariant. The effect is dependent on the dimension and the explicit form of the local coin. A four state discrete-time quantum walk on a square lattice is defined by its unitary coin operator, acting on the four dimensional coin Hilbert space. The well known example of the Grover coin leads to a partial trapping, i.e., there exists some escaping initial state for which the probability of staying at the initial position vanishes. On the other hand, some other coins are known to exhibit strong trapping, where such escaping state does not exist. We present a systematic study of coins leading to trapping, explicitly construct all such coins for discrete-time quantum walks on the 2D square lattice, and classify them according to the structure of the operator and the manifestation of the trapping effect. We distinguish three types of trapping coins exhibiting distinct dynamical properties, as exemplified by the existence or non-existence of the escaping state and the area covered by the spreading wave-packet.
description: 15 pages, 6 figures; updated to the published version
An Algebraic Identity Leading to Wilson Theorem
Creators: name: Ruiz, Sebastian Martin
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 11A41

description: In most text books on number theory Wilson Theorem is proved by applying Lagrange theorem concerning polynomial congruences.Hardy and Wright also give a proof using cuadratic residues. In this article Wilson theorem is derived as a corollary to an algebraic identity.
description: 6 pages
Expansion of Bose-Einstein condensates in lower dimensions
Creators: name: Kamchatnov, A. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In the hydrodynamic approximation we obtain analytic solutions to the Gross-Pitaevskii equation with positive scattering length which describe expansions of the Bose-Einstein condensates in quasi-one and quasi-two dimensional geometries. The expansion laws are expressed in terms of the initial sizes of the condensate and the trap frequencies before release, that is in terms of experimentally measurable parameters only. Three-dimensional effects are estimated with the use of variational approach. The analytical formulae show good agreement with available experimental data.
description: 13 pages, 4 figures
Fecundity of Gulsha Mystus cavasius (Hamilton) from Brahmaputra and Kongsa rivers
Creators: name: Islam, M. K.
name: Das, M.
name: Islam, M. K.
name: Das, M.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Livestock Production/Industries
subject: Productivity Analysis
subject: Gulsha
subject: Fecundity
subject: Brahmaputra
subject: Kongsa

description: The fecundity of Mystus cavasius Hamilton collected from the Brahmaputra river and the Kongsa river was estimated by gravimetric method. The fecundity of the Brahmaputra river fish ranged from 1250 to 23819 with the mean of 10062±704 for the corresponding length of 13.93±0.24cm, body weight of 24.41±1.08g and ovary weight of 1.99 ±0.14g. Whereas the fecundity of fish collected from the river varied from 721 to 44837 with the mean of 11798±1207 for the corresponding length of 15.15±0.24cm, body weight of 24.88±1.09 g and ovary weight of 3.01 ±0.29g. The average number of eggs per gram of ovary was 5064 & 3979 and per gram body weight was 433 & 449 respectively for the fish of the Brahmaputra river and the Kongsa river. The gonadosomatic index (GSI) was calculated to he 8.29±0.47 and 15.63±4.51 respectively for the Brahmaputra and the Kongsa river. The amount of egg produced by a female was more for the fish of the Kongsa river than the fish of the Brahmaputra river. Higher 'n' value of the length-weight relationship w=aLn for the fish of the Kongsa river indicated better living conditions in the Kongsa than in the Brahmaputra river. The relationship between total length and body weight, total length and fecundity, body weight and fecundity, ovary weight and fecundity of the fish were found to be linear both arithmetically and logarithmically. Relationship were highly significant (P<0.01) and the parameters were positively correlated with each other. Ovary weight-fecundity relationship was found to be best fitted (r= 0.95 & 0.94) for the fish of both Brahmaputra river and Kongsa river.
Some (further) Comments on the Theta(1540) Pentaquark
Creators: name: Nussinov, Shmuel
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Additional broader I=0 states in the KN channel near $Θ^+$(1540) are expected in many models, making the absence of any signature in the K$^+$-deuteron scattering data even more puzzling. In an ideal "three-body" picture the $Θ$ is viewed as two compact ud(1)ud(2) $\bar{3}$ color diquarks and an $\bar{s}$ quark. A "QCD-type" inequality involving $m(Θ^+), m(Λ)$, the mass of the $Λ(1/2^-) $ L=1 excitation and that of a new I=0 tetraquark vector meson then follows. The inequality suggests a very light new vector meson, and is violated. We note that "associated production" of the pentaquark with another quadriquark or anti-pentaquark may be favored. This along with some estimates of the actual production cross sections suggest that the $Θ$ can be found in BaBar or Belle e$^+$-e$^-$ colliders.
description: 6 pages
Atomic Super-Resolution Tomography
Creators: name: Ganguly, Poulami Somanya
name: Lucka, Felix
name: Hupkes, Hermen Jan
name: Batenburg, Kees Joost
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Image and Video Processing (eess.IV)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 65K10, 65M32

description: We consider the problem of reconstructing a nanocrystal at atomic resolution from electron microscopy images taken at a few tilt angles. A popular reconstruction approach called discrete tomography confines the atom locations to a coarse spatial grid, which is inspired by the physical a priori knowledge that atoms in a crystalline solid tend to form regular lattices. Although this constraint has proven to be powerful for solving this very under-determined inverse problem in many cases, its key limitation is that, in practice, defects may occur that cause atoms to deviate from regular lattice positions. Here we propose a grid-free discrete tomography algorithm that allows for continuous deviations of the atom locations similar to super-resolution approaches for microscopy. The new formulation allows us to define atomic interaction potentials explicitly, which results in a both meaningful and powerful incorporation of the available physical a priori knowledge about the crystal's properties. In computational experiments, we compare the proposed grid-free method to established grid-based approaches and show that our approach can indeed recover the atom positions more accurately for common lattice defects.
description: 16 pages, 5 figures
FINANCING THE POSTWAR EXPANSION OF BUSINESS: AN INDUSTRY ANALYSIS
Creators: name: Liebling, Herman I.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 35
subject: Commerce, management, tourism and services
classificationCode: 3502
subject: Banking, finance and investment
classificationCode: 38
subject: Economics

description: Source: Dissertation Abstracts International, Volume: 22-04, page: 1049.
Bitoma guttata Broun 1886
Creators: name: Lord, Nathan P.
name: Leschen, Richard A. B.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Zopheridae
Bitoma
Bitoma guttata

description: Bitoma guttata Broun, 1886
(Figs. 57–58)
 Bitoma guttata Broun, 1886: 895. Hutton 1904: 169. Hudson 1923: 368. Hetschko 1930: 18. Maddison 2010: 426.
 Type locality: near Dunedin [Otago Region].
 Broun number: 1597.
 Remarks: Broun based this species on a single specimen.
 Type material examined: Holotype (BMNH): card-mounted, “Type [round label with red border] // 1597. [in Broun’s hand] // Otago [in Broun’s hand] // New Zealand. [red underline] Broun Coll. Brit. Mus. 1922-482. // Bitoma guttata. [in Broun’s hand]”.
description: Published as part of Lord, Nathan P. & Leschen, Richard A. B., 2014, Illustrated Catalogue and Type Designations of the New Zealand Zopheridae (Coleoptera: Tenebrionoidea), pp. 1-127 in Zootaxa 3809 (1) on page 16, DOI: 10.11646/zootaxa.3809.1.1, http://zenodo.org/record/4918362
Toward understanding the lattice QCD results from the strong coupling analysis
Creators: name: Fukushima, Kenji
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This is a review of strong coupling approaches to grasp the nature of the phase transition in finite temperature and density QCD. We commence with classics of the center symmetry and the Polyakov loop in pure gauge theories. The effective action derived in the strong coupling limit gives qualitatively plausible behavior for the deconfinement transition at finite temperature. We can apply the strong coupling analysis to describe the chiral phase transition with the help of large dimensional expansion. In order to make this article as self-contained as possible, we elucidate the computational procedure and its physical meaning in detail. Also the relation between the Polyakov loop behavior and the chiral dynamics, the phase structure of two-color QCD, and future possibilities to be pursued in the strong coupling analysis are discussed.
description: Contributed to Workshop on Finite Density QCD at Nara, Nara, Japan, 10-12 Jul 2003
Stochastic Navier-Stokes equations on a thin spherical domain
Creators: name: Brzeźniak, Zdzisław
name: Dhariwal, Gaurav
name: Gia, Quoc Thong Le
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 60H15 (Primary) 35R60, 35Q30, 76D05 (Secondary)

description: Incompressible Navier-Stokes equations on a thin spherical domain $Q_\varepsilon$ along with free boundary conditions under a random forcing are considered. The convergence of the martingale solution of these equations to the martingale solution of the stochastic Navier-Stokes equations on a sphere $\mathbb{S}^2$ as the thickness converges to zero is established.
description: 54 Pages. Published Version. Includes additional sections corresponding to the analysis of deterministic NSEs on a thin spherical domain
Meaningful Metrics & More
Creators: name: Holmes, Kristi
Publisher: name: DigitalHub. Galter Health Sciences Library & Learning Center
Year: 2018
Subjects: subject: metrics
subject: evaluation
subject: CD2H
subject: book
subject: Bibliometrics
subject: Informatics
subject: Research--Evaluation

description: Slides from SSP 2018; Session: Books, Metrics and Research Evaluation
description: presentation_location: Chicago, Illinois, United States
Rigorous measurement error correction
Creators: name: Geller, Michael R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We review an experimental technique used to correct state preparation and measurement errors on gate-based quantum computers, and discuss its rigorous justification. Within a specific biased quantum measurement model, we prove that nonideal measurement of an arbitrary $n$-qubit state is equivalent to ideal projective measurement followed by a classical Markov process $Γ$ acting on the output probability distribution. Measurement errors can be removed, with rigorous justification, if $Γ$ can be learned and inverted. We show how to obtain $Γ$ from gate set tomography (R. Blume-Kohout et al., arXiv:1310.4492) and apply the error correction technique to single IBM Q superconducting qubits.
Bitoma insularis White. Zool. Ereb & Terro 1846
Creators: name: Lord, Nathan P.
name: Leschen, Richard A. B.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Zopheridae
Bitoma
Bitoma insularis

description: Bitoma insularis White, 1846
(Figs. 59–61)
 Bitoma insularis White, 1846: 18. Sharp 1876: 18, 26. Sharp 1877c: 391, 399 (reprinted from Sharp 1876). Broun 1880: 192. Hutton 1904: 169. Broun 1912: 420. Hudson 1923: 368. Hetschko 1930: 18. Hudson 1934: 59. Kuschel 1990: 33, 63. Maddison 2010: 426.
 Type locality: Port Nicholson.
 Broun number: 343.
 Remarks: White did not mention the number of specimens examined. In order to stabilize this name, a lectotype and paralectotype are here designated from the material of Bitoma insularis.
 Type material examined: Lectotype (BMNH): mounted on same card as paralectotype, left specimen is the lectotype, “Type [round label with red border] // Port. Nicholson N. Zealand [dark green label with black border, in White’s hand] // 67. 78- [round blue label, handwritten] // Bitoma insularis White. Zool. Ereb & Terro [handwritten]”. Paralectotype (BMNH): mounted on same card as lectotype, right specimen is a paralectotype, mounted on right side and missing head and prothorax, labels same as lectotype.
description: Published as part of Lord, Nathan P. & Leschen, Richard A. B., 2014, Illustrated Catalogue and Type Designations of the New Zealand Zopheridae (Coleoptera: Tenebrionoidea), pp. 1-127 in Zootaxa 3809 (1) on page 16, DOI: 10.11646/zootaxa.3809.1.1, http://zenodo.org/record/4918362
Abundance of some helminth parasites in indigenous freshwater fishes of Bangladesh
Creators: name: Hoque, N.
name: Chandra, K. J.
name: Bakshi, A. K.
name: Hoque, N.
name: Chandra, K. J.
name: Bakshi, A. K.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Health Economics and Policy
subject: Livestock Production/Industries
subject: Helminth parasites
subject: Freshwater fish
subject: Mymensingh

description: During the investigation of parasites of indigenous fishes from different water bodies of Mymensingh, four helminth parasites belonging to Monogenea, Digenea and Cestoda were recovered. The mono geneans-Ancylodiscoides mystusi and Ancylodiscoides aori from Mystus aor, the digenetic trematode- Bucephalopsis karvei from Xenentodon cancila and the cestode- Proteocephalus sp. were collected from Mystus aor. The worms were studied morphologically and systematically for their identification. Though these monogenetic.and digenetic trematodes were reported earliar in other country from the host mentioned, recorded from the first time from Bangladesh waters, indicating their host specificity beyond the geographical area. Record of Proteocephalus sp. is also the first report frc ii Bangladesh water.
Thermal Instability of Giant Graviton in Matrix Model on PP-wave Background
Creators: name: Huang, Wung-Hong
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The thermal instability of the giant graviton is investigated within the BMN matrix model. We calculate the one-loop thermal correction of the quantum fluctuation around the trivial vacuum and giant graviton respectively. From the exact formula of the free energy we see that at low temperature the giant graviton is unstable and will dissolve into vacuum fluctuation. However, at sufficient high temperature the trivial vacuum fluctuation will condense to form the giant graviton configuration. The transition temperature of the giant graviton is determined in our calculation.
description: Latex, 8 pages, typos corrected, mention the elliptic deformation of giant graviton
Random geometric graphs in high dimension
Creators: name: Erba, Vittorio
name: Ariosto, Sebastiano
name: Gherardi, Marco
name: Rotondo, Pietro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Many machine learning algorithms used for dimensional reduction and manifold learning leverage on the computation of the nearest neighbours to each point of a dataset to perform their tasks. These proximity relations define a so-called geometric graph, where two nodes are linked if they are sufficiently close to each other. Random geometric graphs, where the positions of nodes are randomly generated in a subset of $\mathbb{R}^{d}$, offer a null model to study typical properties of datasets and of machine learning algorithms. Up to now, most of the literature focused on the characterization of low-dimensional random geometric graphs whereas typical datasets of interest in machine learning live in high-dimensional spaces ($d \gg 10^{2}$). In this work, we consider the infinite dimensions limit of hard and soft random geometric graphs and we show how to compute the average number of subgraphs of given finite size $k$, e.g. the average number of $k$-cliques. This analysis highlights that local observables display different behaviors depending on the chosen ensemble: soft random geometric graphs with continuous activation functions converge to the naive infinite dimensional limit provided by Erdös-Rényi graphs, whereas hard random geometric graphs can show systematic deviations from it. We present numerical evidence that our analytical insights, exact in infinite dimensions, provide a good approximation also for dimension $d\gtrsim10$.
Submillimetre observations of a sample of broad absorption line quasars
Creators: name: Lewis, Geraint F.
name: Chapman, Scott C.
name: Kuncic, Zdenka
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The broad absorption line (BAL) features seen in a small fraction of quasar optical/UV spectra are attributed to bulk outflows away from the quasar core. Observational evidence suggests that dust plays a key role in these systems, although whether the inferred dust properties are a signature of orientation effects or whether they are indicative of an evolutionary sequence remains an outstanding issue. Submillimetre (submm) detections of BAL quasars (BALQSOs), which would clearly help to resolve this issue, have so far been sparse. This paper reports on new submm observations of seven BALQSOs. The strongest influence on the observed flux is found to be the redshift, with the two highest redshift sources appearing intrinsically more submm-luminous than the lower redshift ones. Since this trend is also seen in other high redshift AGN, including non-BAL quasars it implies that the dust emission properties of these systems are no different from those of the general AGN population, which is difficult to reconcile with the evolutionary interpretation of the BAL phenomenon.
description: 5 Pages, to appear in ApJ Letters
Subgroup families controlling p-local finite groups
Creators: name: Broto, Carles
name: Castellana, Natalia
name: Grodal, Jesper
name: Levi, Ran
name: Oliver, Bob
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Topology (math.AT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 55R35 (Primary) 55R40, 20D20 (Secondary)

description: A p-local finite group consists of a finite p-group S, together with a pair of categories which encode ``conjugacy'' relations among subgroups of S, and which are modelled on the fusion in a Sylow p-subgroup of a finite group. It contains enough information to define a classifying space which has many of the same properties as p-completed classifying spaces of finite groups. In this paper, we examine which subgroups control this structure. More precisely, we prove that the question of whether an abstract fusion system F over a finite p-group S is saturated can be determined by just looking at smaller classes of subgroups of S. We also prove that the homotopy type of the classifying space of a given p-local finite group is independent of the family of subgroups used to define it, in the sense that it remains unchanged when that family ranges from the set of F-centric F-radical subgroups (at a minimum) to the set of F-quasicentric subgroups (at a maximum). Finally, we look at constrained fusion systems, analogous to p-constrained finite groups, and prove that they in fact all arise from groups.
description: 32 pages. To appear in Proc. London Math Soc
SOME RELATIONSHIPS BETWEEN SOCIAL CONFORMITY AND SELF-PERCEPTION
Creators: name: Maslow, Albert R.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 5205
subject: Social and personality psychology

description: Source: Dissertation Abstracts International, Volume: 22-04, page: 1285.
Observational estimates of the initial power spectrum at small scale from Lyman-$α$ absorbers
Creators: name: Demiański, M.
name: Doroshkevich, A. G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new method of measuring the power spectrum of initial perturbations to an unprecedently small scale of $\sim$ 10$h^{-1}$ kpc. We apply this method to a sample of 4500 Ly-$α$ absorbers and recover the cold dark matter (CDM) like power spectrum at scales $\geq 300h^{-1}$kpc with a precision of $\sim$ 10%. However at scales $\sim 10 - 300 h^{-1}$kpc the measured and CDM--like spectra are noticeable different. This result suggests a complex inflation with generation of excess power at small scales. The magnitude and reliability of these deviations depend also upon the possible incompleteness of our sample and poorly understood process of formation of weak absorbers. Confirmation of the CDM--like shape of the initial power spectrum or detection of its distortions at small scales are equally important for widely discussed problems of physics of the early Universe, galaxy formation, and reheating of the Universe. Our method links the observed mass function of absorbers with the correlation function of the initial velocity field and therefore it avoids the Nyquist restrictions limiting the investigations based on the smoothed flux or density fields. The physical model of absorbers adopted here asserts that they are formed in the course of both linear and nonlinear adiabatic or shock compression of dark matter (DM) and gaseous matter. At scales $\geq 1h^{-1}$Mpc all characteristics of the DM component and, in particular, their redshift distribution are found to be consistent with theoretical expectations for Gaussian initial perturbations with a CDM--like power spectrum.
description: 22 pages, 10 figures
Critical Phenomena in Continuous Dimension
Creators: name: Ballhausen, H.
name: Berges, J.
name: Wetterich, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a calculation of critical phenomena directly in continuous dimension d employing an exact renormalization group equation for the effective average action. For an Ising-type scalar field theory we calculate the critical exponents nu(d) and eta(d) both from a lowest--order and a complete first--order derivative expansion of the effective average action. In particular, this can be used to study critical behavior as a function of dimensionality at fixed temperature.
description: 5 pages, 1 figure, PLB version, references added
Inflation on Fractional Branes: D--Brane Inflation as D--Term Inflation
Creators: name: Halyo, Edi
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe a D--brane inflation model which consists of two fractional D3 branes separated on a transverse $T^2 \times K3$. Inflation arises due to the resolved orbifold singularity of $K3$ which corresponds to an anomalous D--term on the brane. We show that D--brane inflation in the bulk corresponds to D--term inflation on the brane. The inflaton and the trigger field parametrize the interbrane distances on $T^2$ an $K3$ respectively. After inflation the branes reach a supersymmetric configuration in which they are at the origin of $T^2$ but separated along the $K3$ directions.
description: 15 pages in phyzzx.tex; minor corrections including all factors of 2\pi; v3: more minor corrections
Spring bloom of Cyanobacteria in lsha Khan Lake at Bangladesh Agricultural University, Mymensingh
Creators: name: Khan, S.
name: Affan, M. A.
name: Haque, M. M.
name: Khan, S.
name: Affan, M. A.
name: Haque, M. M.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Crop Production/Industries
subject: Productivity Analysis
subject: Cyanobacteria
subject: Spring bloom
subject: Microcystis
subject: Lake

description: As spring and summer blooms of cyanobacteria are very common in many ponds, lakes and reservoirs of Bangladesh, the occurrence and abundance of dyanobacterial population and environmental parameters were examined in lsha Khan lake of Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh from February to April to see how environmental factors affect the spring bloom of cyanobacteria. Sampling was done bi-weekly during the non-bloom period but daily from the conspicuous bloom to heavy bloom. During the study period 5 species of cyanobacteria namely, Microcystis aeruginosa Katz., Microcystis wesenbergii Kom., Microcystis bottys Teli., Microcystis viridis (A. Br.) Lemm. and Anabaena circinalis Rabenh. were identified. A heavy bloom of cyanobacteria occurred in the lake at the end of March. The bloom comprised mainly M. aeruginosa followed by M. wesenbergii. At the peak bloom period, the highest cell density of M. aeruginosa was 1550 x 103 cells/m1 which comprised 97.45% among the cyanobacteria and 96.84% of the total phytqplankton population. From the findings of the study, it can be concluded that the causes of the spring" bloom of cyanobacteria in the lake were accumulating nutrients being enriched before the bloom period that was further increased by the rainwater run-off entered into the lake followed by calm, warm and comparatively windless days.
Ergodicity of the 2D Navier-Stokes Equations with Degenerate Stochastic Forcing
Creators: name: Hairer, Martin
name: Mattingly, Jonathan C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37A25; 37A60; 37N10; 37L55; 76F55; 76F20; 60H15; 60H07; 35R60

description: The stochastic 2D Navier-Stokes equations on the torus driven by degenerate noise are studied. We characterize the smallest closed invariant subspace for this model and show that the dynamics restricted to that subspace is ergodic. In particular, our results yield a purely geometric characterization of a class of noises for which the equation is ergodic in $Ł^2_0(\TT^2)$. Unlike previous works, this class is independent of the viscosity and the strength of the noise. The two main tools of our analysis are the \textit{asymptotic strong Feller} property, introduced in this work, and an approximate integration by parts formula. The first, when combined with a weak type of irreducibility, is shown to ensure that the dynamics is ergodic. The second is used to show that the first holds under a H{ö}rmander-type condition. This requires some interesting nonadapted stochastic analysis.
description: 40 Pages, published version
Optical levitation using broadband light
Creators: name: Rahman, A. T. M. Anishur
name: Barker, P. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Chaotic Dynamics (nlin.CD)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The ability to create dynamic, tailored optical potentials has become important across fields ranging from biology to quantum science. We demonstrate a method for the creation of arbitrary optical tweezer potentials using the broadband spectral profile of a superluminescent diode combined with the chromatic aberration of a lens. A tunable filter, typically used for ultra-fast laser pulse shaping, allows us to manipulate the broad spectral profile and therefore the optical tweezer potentials formed by focusing of this light. We characterize these potentials by measuring the Brownian motion of levitated nanoparticles in vacuum and, also demonstrate interferometric detection and feedback cooling of the particle,s motion. This simple and cost-effective technique will enable a wide range of applications and allow rapid modulation of the optical potential landscape in excess of MHz frequencies.
description: 8 pages, 6 figures
title: Masculine Ideology and High-Risk Behavior Among Disabled Veterans
Creators: name: Braitman, Abby L.
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2007

description: There may be predictors for high-risk behaviors, such as alcohol abuse, aggression, and risky sexual behavior, that can help identify susceptible men. Previous research has shown that masculine ideology is linked to engaging in such high-risk behaviors (Jakupcak, Tull, & Roemer, 2005; Moore & Stuart, 2005). In addition, having a physical disability may threaten male masculinity and increase the probability of this behavior (Good, Thomson, & Brathwaite, 2005). This issue is especially important to investigate in the military population. Military personnel and veterans engage in more high-risk behaviors (Bray et al., 2006; Bray, Marsden, & Peterson, 1991). Furthermore, the number of severely disabled veterans is steadily increasing (Gawande, 2004). The current study explored the relationship between masculine ideology and high-risk behaviors in disabled veterans. Additionally, it examined disability as a potential moderator of the relationship. Participants were disabled male veterans who completed measures of masculine ideology, masculine gender role stress, disability, intimate partner aggression, alcohol use, and risky sexual behavior. Six multiple regressions and one logistic regression were conducted to test the hypotheses that masculine ideology and disability are significant predictors of hill-risk behaviors including intimate partner aggression, number of alcoholic drinks consumed per week, alcohol quantity-frequency, alcohol-related consequences, binge drinking, number of sexual partners, and use of sexual protection. Hypothesis one and two were not supported, as neither masculine ideology nor disability predicted any of the behaviors measured. The third hypothesis was not supported, as the interaction between masculine ideology and disability was not a significant predictor of any of the behaviors measured. Interestingly, age significantly predicted many of the behaviors measured. As age increased, high-risk behavior decreased. The exception was that higher ages led to less use of sexual protection. However, this was likely due to the fact that birth control was not necessary for older participants because their partners were post-menopausal. The lack of significance for the association between masculine ideology and high-risk behaviors was in contrast to prior research (Good et al., 2005; Jakupcak et al., 2005; Moore & Stuart, 2005). Limitations and suggestions for future search are discussed.
Space : a design brief for the AMS Nest
Creators: name: Ho, Andrea
name: Pourbaix, Claire
name: Duda, Lauren
name: Evin, Ryan
name: Petterson, Steven
Publisher: name: The University of British Columbia
Year: 2017

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Bitoma lobata Broun 1886
Creators: name: Lord, Nathan P.
name: Leschen, Richard A. B.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Zopheridae
Bitoma
Bitoma lobata

description: Bitoma lobata Broun, 1886
(Figs. 62–63)
 Bitoma lobata Broun, 1886: 833, 895. Hutton 1904: 169. Hudson 1923: 368. Hetschko 1930: 18. Maddison 2010: 426.
 Type locality: Woodhill, near Waitakere Range.
 Broun number: 1482.
 Remarks: Broun based this species on a single specimen.
 Type material examined: Holotype (BMNH): card-mounted. “Type [round label with red border] // 1482. [in Broun’s hand] // New Zealand. [red underline] Broun Coll. Brit. Mus. 1922-482. // Woodhill. Waitakerei. [in Broun’s hand] // Bitoma lobata. [in Broun’s hand]”.
description: Published as part of Lord, Nathan P. & Leschen, Richard A. B., 2014, Illustrated Catalogue and Type Designations of the New Zealand Zopheridae (Coleoptera: Tenebrionoidea), pp. 1-127 in Zootaxa 3809 (1) on pages 16-17, DOI: 10.11646/zootaxa.3809.1.1, http://zenodo.org/record/4918362
Enhancing irrigation and,production capacity of small farmers through low-cost engine operated centrifugal pump
Creators: name: Ahmed, A. B. M. F.
name: Sarker, M. R. I.
name: Ahmed, A. B. M. F.
name: Sarker, M. R. I.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Resource /Energy Economics and Policy
subject: Pump
subject: Shallow tubewell irrigation
subject: Economic feasibility

description: A study was undertaken to introduce a 2 hp diesel shallow tubewell (STVV) technology and to evaluate the economic feasibility of the technology in eight upazilas under Dinajpur district. A total of twenty four STWs with four types of pump including 3.8 cm bearing, 3.8 cm bearingless, 5.08 cm bearing and 5.08 cm bearingless coupled with 2 hp diesel engines were installed in respective sites for field testing purpose. Low initial investment relative to its competitors (3-10 hp STW technology), lighter weight, less fuel consumption, simple operation and maintenance and easy on farm water management are positive indications of the 2 hp STVV technology. The research results indicated that each type of 5.08 cm pump performed better result with 2 hp engines in terms of benefit-cost ratio. In all stages of study, bearingless pumps performed better result than pumps with bearings. The study suggests that more research, development and demonstration are necessary to familiarize bearingless pump for STW technology.
AN INVESTIGATION OF THE INFLUENCE OF GROUP STANDARDS AND DEVIATE MEMBER BEHAVIOR ON THE EXHIBITED RACIAL PREJUDICE OF AN INDIVIDUAL
Creators: name: Tiedemann, John George
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 5205
subject: Social and personality psychology

description: Source: Dissertation Abstracts International, Volume: 22-04, page: 1288.
Escape from the Quantum Pigeon Conundrum
Creators: name: Kunstatter, Gabor
name: Ziprick, Jonathan
name: McNab, Victoria
name: Rennie, Alexander
name: Speidel, Connor
name: Toews, Jovin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It has recently been argued in Aharonov et. al. (2016) that quantum mechanics violates the Pigeon Counting Principle (PCP) which states that if one distributes three pigeons among two boxes there must be at least two pigeons in one of the boxes. However, this conclusion cannot justified by rigorous theoretical arguments. The issue is further complicated by experimental confirmation of the transition amplitudes predicted in this paper that nevertheless do not support the conclusion of PCP violation. Here we prove via a set of operator identities that the PCP is not violated within quantum mechanics, regardless of interpretation.
description: added conclusion; revised abstract; version accepted for publication
Is isiZulu a ‘problem or a ‘resource’? Engineering students’ perceptions of teaching and learning in a multilingual context
Creators: name: Ndebele, Hloniphani
Publisher: name: Mangosuthu University of Technology (MUT)
Year: 2022
Subjects: subject: 209999 Language, Communication and Culture not elsewhere classified
subject: FOS: Languages and literature
subject: 200301 Early English Languages
subject: 200302 English Language
subject: 200303 English as a Second Language
subject: 91503 Engineering Practice
subject: FOS: Other engineering and technologies
subject: 130103 Higher Education
subject: FOS: Educational sciences

description: Research and praxis in the field teaching and learning in the South African higher education context has been characterised by calls to expand the languages of teaching and learning through the inclusive use of African languages in higher education. Such calls are based on the realisation of the critical role that students’ home language can play in cognitive and linguistic development, among other things, in education. The focus of this paper is to ascertain the perceptions of students about the inclusive use of isiZulu, an African language, as a language of teaching and learning. Data were gathered through a survey which employed a questionnaire targeting 120 students from a Faculty of Engineering at a South African university of technology. The study found that students’ understanding of the use of isiZulu for teaching and learning conflated issues of language as ‘problem’ and ‘resource’. The study also discovered elements of language ambivalence. The paper argues that helping students to shift their perceptions from a ‘problem’ view
of language to a view of language as a ‘resource’ could enhance their learning.
Lambda-Lambda bond energy from the Nijmegen potentials
Creators: name: Vidana, I.
name: Ramos, A.
name: Polls, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The $ΛΛ$ bond energy $ΔB_{ΛΛ}$ in $ΛΛ$ hypernuclei is obtained from a $G$-matrix calculation which includes the coupling between the $ΛΛ$, $ΞN$ and $ΣΣ$ channels, as well as the effect of Pauli blocking to all orders. The Nijmegen NSC97e model is used as bare baryon-baryon interaction in the strangeness $S=-2$ sector. The $ΛΛ$-$ΞN$ coupling increases substantially the bond energy with respect to the uncoupled $ΛΛ$ case. However, the additional incorporation of the $ΣΣ$ channel, which couples simultaneously to $ΛΛ$ and $ΞN$ states, has a surprisingly drastic effect and reduces the bond energy down to a value closer to that obtained in an uncoupled calculation. We find that a complete treatment of Pauli blocking reduces the repulsive effect on the bond energy to about half of what was claimed before.
description: 15 pages, 1 figure, 3 tables, Accepted in PRC
Effects of soil texture and water on bulk soil electrical conductivity
Creators: name: Faruque, M. J.
name: Mojid, M. A.
name: Delwar Hossain, A. S. M.
name: Faruque, M. J.
name: Mojid, M. A.
name: Delwar Hossain, A. S. M.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Land Economics/Use
subject: Resource /Energy Economics and Policy
subject: Electrical conductivity
subject: Bulk soil
subject: TDR

description: The effects of soil-water content (0), electrical conductivity of soil water (EC), and clay content of a soil on the bulk-soil electrical conductivity (ECb) were investigated by a series of contecilled laboratory experiments. The bulk-soil electrical conductivity increases nonlinearly with increasing soil-water content and soil-water electrical conductivity. ECb, although a unique function of soil-water content in sand, is a combined function of soil-water content and electrical conductivity of soil mineral (ECs). in sandy loam and silt loam soil. The bulk-soil electrical conductivity is greater in silt loam soil than in sandy soil and sandy loam soil due to the higher content of clay in the silt loam soil than in the Other tWO soils. The bulk-soil electrical conductivity increases with increasing clay content of the soils for the same soil-water contents and constant soil-water electrical conductivity in all three soils.
Field performance of a tractor operated semi-automatic potato planter
Creators: name: Momin, M. A.
name: Sarker, M. R. I.
name: Hossain, M. M.
name: Momin, M. A.
name: Sarker, M. R. I.
name: Hossain, M. M.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Crop Production/Industries
subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Tractor operated
subject: Potato planter
subject: Field performance
subject: Break-even area
subject: Operating cost

description: The study was carried out to evaluate the performance of a 2-row tractor operated potato planter at the Bangladesh Agricultural University, Mymensingh farm during 2e December 2005 to 10th February 2006. Various technical and economic aspects of the planters' namely seed to seed spacing, percent of missing seed, depth of planting, and percent of injured seed, field capacity, field efficiency, fuel consumption, cost of operation and break-even analysis were evaluated on the basis of RNAM tests code. Considering recommended seed to seed spacing, percent of missing seed, depth of planting, percent of injured seed, and field efficiency; 1.1km/hr operational speed could be recommended for field operation of the planter for planting potato. At the recommended speed the effective field capacity and field efficiency of the planter was about 0.14 ha/hr and 70.70%, respectively. Costs and labour requirements of planting potatoes were reduced by 44% and 95%, respectively, compared with the traditional method.
Impact of improved poultry management technique on socioeconomic condition of broiler beneficiaries
Creators: name: Rahman, S. M. A.
name: Sayeed, M. A.
name: Sarker, N. R.
name: Alam, J.
name: Rahman, S. M. A.
name: Sayeed, M. A.
name: Sarker, N. R.
name: Alam, J.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Consumer/Household Economics
subject: Livestock Production/Industries
subject: Broiler Packages
subject: Production
subject: Consumption
subject: Socio-economic condition
subject: Women Empowerment

description: In this study attempt was made with 25 broiler beneficiaries and 24 adopter farms to analyze the magnitude of changes in terms of socio-economic status and livelihood pattern of beneficiaries from commercial broiler packages developed and introduced by PMTIP in 4 Agro-Ecological Zones (AEZ) of Bangladesh. Results showed that number of broiler production for category I, II and III farms were 1122, 1448 and 1777/beneficiary and 488, 763 and 1073/adopter farms, respectively. Annual profitability of broiler production/beneficiary and adopter farms was Tk 8,933 and Tk 10,280, respectively. Annual employment opportunities created for category I, II and III farmers of broiler beneficiaries were 45, 58 and 67 man-days. A substantial impact on supplementary occupation was reflected in poultry business for broiler beneficiaries. Investment in poultry business, cash in hand and saving in banks increased by 3600%, 675% and 1416%, respectively. Drinking water from own tube-well increased by 12%. Katcha latrines decreased by 15.4% and that of sanitary latrines increased by 16.7%. Per capita consumption of chicken, eggs, vegetables,' milk, pulses, fish and rice increased by 65.79%, 7.27%, 7.67%, 5.12%, 10.34%, 19.70% and 8.33% in post-project period. Household assets and health status improved in post-project period. The number of school-going children of beneficiaries increased by 123% in postproject period. It facilitated employment and income earning opportunities to female beneficiaries and their participation in decision making on household expenditure, children education and memberships of NGOs increased after intervention. All these evidences *suggest that commercial broiler packages introduced by PMTIP deserve wider expansion covering larger number of beneficiaries throughout the country.
Chorasus purus
Creators: name: Lord, Nathan P.
name: Leschen, Richard A. B.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Zopheridae
Chorasus
Chorasus purus

description: Chorasus purus (Broun, 1921)
(Figs. 99–100)
 Vitiacus purus Broun, 1921a: 529. Hudson 1923: 369. Hetschko 1930: 49.
 Chorasus purus: Implied combination based on synonymy of Vitiacus with Chorasus in Ślipiński and Lawrence 1997: 368. Chorasus purus: Maddison 2010: 426.
 Type locality: Hollyford.
 Broun number: 4053.
 Remarks: Broun based this species on a single specimen collected on 16 February, 1914.
 Type material examined: Holotype (BMNH): card-mounted, “4053. [in Broun’s hand] // New Zealand. [red underline] Broun Coll. Brit. Mus. 1922-482. // Hollyford 16.2.1914 [in Broun’s hand] // Vitiacus purus. [in Broun’s hand]”.
description: Published as part of Lord, Nathan P. & Leschen, Richard A. B., 2014, Illustrated Catalogue and Type Designations of the New Zealand Zopheridae (Coleoptera: Tenebrionoidea), pp. 1-127 in Zootaxa 3809 (1) on page 21, DOI: 10.11646/zootaxa.3809.1.1, http://zenodo.org/record/4918362
On the Geometry of Dark Energy
Creators: name: Maia, M. D.
name: Monte, E. M.
name: Maia, J. M. F.
name: Alcaniz, J. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Experimental evidence suggests that we live in a spatially flat, accelerating universe composed of roughly one-third of matter (baryonic + dark) and two-thirds of a negative-pressure dark component, generically called dark energy. The presence of such energy not only explains the observed accelerating expansion of the Universe but also provides the remaining piece of information connecting the inflationary flatness prediction with astronomical observations. However, despite of its good observational indications, the nature of the dark energy still remains an open question. In this paper we explore a geometrical explanation for such a component within the context of brane-world theory without mirror symmetry, leading to a geometrical interpretation for dark energy as warp in the universe given by the extrinsic curvature. In particular, we study the phenomenological implications of the extrinsic curvature of a Friedman-Robertson-Walker universe in a five-dimensional constant curvature bulk, with signatures (4,1) or (3,2), as compared with the X-matter (XCDM) model. From the analysis of the geometrically modified Friedman's equations, the deceleration parameter and the Weak Energy Condition, we find a consistent agreement with the presently known observational data on inflation for the deSitter bulk, but not for the anti-deSitter case.
description: Final form to appear in classical and Quantum Gravity 2005, with updated references, typos corrected, improved introduction and appendices