cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Local Rigidity of Diophantine translations in higher dimensional tori
Creators: name: Karaliolios, Nikolaos
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C55

description: We prove a theorem asserting that, given a Diophantine rotation $α$ in a torus $\T ^{d} \equiv \R ^{d} / \Z ^{d}$, any perturbation, small enough in the $C^{\infty}$ topology, that does not destroy all orbits with rotation vector $α$ is actually smoothly conjugate to the rigid rotation. The proof relies on a K.A.M. scheme (named after Kolmogorov-Arnol'd-Moser), where at each step the existence of an invariant measure with rotation vector $α$ assures that we can linearize the equations around the same rotation $α$. The proof of the convergence of the scheme is carried out in the $C^{\infty}$ category.
description: 16 pages
Device-independent lower bounds on the conditional von Neumann entropy
Creators: name: Brown, Peter
name: Fawzi, Hamza
name: Fawzi, Omar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The rates of several device-independent (DI) protocols, including quantum key-distribution (QKD) and randomness expansion (RE), can be computed via an optimization of the conditional von Neumann entropy over a particular class of quantum states. In this work we introduce a numerical method to compute lower bounds on such rates. We derive a sequence of optimization problems that converge to the conditional von Neumann entropy of systems defined on general separable Hilbert spaces. Using the Navascués-Pironio-Acín hierarchy we can then relax these problems to semidefinite programs, giving a computationally tractable method to compute lower bounds on the rates of DI protocols. Applying our method to compute the rates of DI-RE and DI-QKD protocols we find substantial improvements over all previous numerical techniques, demonstrating significantly higher rates for both DI-RE and DI-QKD. In particular, for DI-QKD we show a minimal detection efficiency threshold which is within the realm of current capabilities. Moreover, we demonstrate that our method is capable of converging rapidly by recovering all known tight analytical bounds up to several decimal places. Finally, we note that our method is compatible with the entropy accumulation theorem and can thus be used to compute rates of finite round protocols and subsequently prove their security.
description: 21 (+11) pages, 4 (+2) figures. V2: improved numerics and restructured article. V3: Accepted in Quantum, minor changes
A Novel Bivariate Generalized Weibull Distribution with Properties and Applications
Creators: name: Pathak, Ashok Kumar
name: Arshad, Mohd.
name: Azhad, Qazi J.
name: Khetan, Mukti
name: Pandey, Arvind
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Univariate Weibull distribution is a well-known lifetime distribution and has been widely used in reliability and survival analysis. In this paper, we introduce a new family of bivariate generalized Weibull (BGW) distributions, whose univariate marginals are exponentiated Weibull distribution. Different statistical quantiles like marginals, conditional distribution, conditional expectation, product moments, correlation and a measure component reliability are derived. Various measures of dependence and statistical properties along with ageing properties are examined. Further, the copula associated with BGW distribution and its various important properties are also considered. The methods of maximum likelihood and Bayesian estimation are employed to estimate unknown parameters of the model. A Monte Carlo simulation and real data study are carried out to demonstrate the performance of the estimators and results have proven the effectiveness of the distribution in real-life situations
Generalized reduction formula for Discrete Wigner functions of multiqubit systems
Creators: name: Srinivasan, K.
name: Raghavan, G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Density matrices and Discrete Wigner Functions are equally valid representations of multiqubit quantum states. For density matrices, the partial trace operation is used to obtain the quantum state of subsystems, but an analogous prescription is not available for discrete Wigner Functions. Further, the discrete Wigner function corresponding to a density matrix is not unique but depends on the choice of the quantum net used for its reconstruction. In the present work, we derive a reduction formula for discrete Wigner functions of a general multiqubit state which works for arbitrary quantum nets. These results would be useful for the analysis and classification of entangled states and the study of decoherence purely in a discrete phase space setting and also in applications to quantum computing
description: 7 Pages and zero figures
Enthusiastically acclaim the brilliant decisions of Chairman Mao and the Party Central Committee (热烈欢呼毛主席，党中央的英明决策)
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Deng, Xiaoping, 1904-1997
valueUri: http://id.worldcat.org/fast/68549
subject: Demonstrations
valueUri: http://id.worldcat.org/fast/890222
subject: Legitimacy of governments
valueUri: http://id.worldcat.org/fast/995908
subject: Hua, Guofeng
valueUri: http://id.worldcat.org/fast/68151
subject: Campaign Against Deng Xiaoping
subject: April 5th 1975 Demonstrations

description: The title celebrates the appointment of Hua Guofeng as premier and the firing of Deng Xiaoping as vice-Premier following the demonstrations of April 5th 1975. Ten different images are presented. Artist information unavailable. Price: 20 fen
Annexing magic and tune-out wavelengths to the clock transitions of the alkaline-earth metal ions
Creators: name: Kaur, Jasmeet
name: Singh, Sukhjit
name: Arora, Bindiya
name: Sahoo, B. K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present additional magic wavelengths ($λ_{\rm{magic}}$) for the clock transitions in the alkaline-earth metal ions considering circular polarized light aside from our previously reported values in [J. Kaur et al., Phys. Rev. A {\bf 92}, 031402(R) (2015)] for the linearly polarized light. Contributions from the vector component to the dynamic dipole polarizabilities ($α_d(ω)$) of the atomic states associated with the clock transitions play major roles in the evaluation of these $λ_{\rm{magic}}$, hence facilitating in choosing circular polarization of lasers in the experiments. Moreover, the actual clock transitions in these ions are carried out among the hyperfine levels. The $λ_{\rm{magic}}$ values in these hyperfine transitions are estimated and found to be different from $λ_{\rm{magic}}$ for the atomic transitions due to different contributions coming from the vector and tensor part of $α_d(ω)$. Importantly, we also present $λ_{\rm{magic}}$ values that depend only on the scalar component of $α_d(ω)$ for their uses in a specially designed trap geometry for these ions so that they can be used unambiguously among any hyperfine levels of the atomic states of the clock transitions. We also present $α_d(ω)$ values explicitly at the 1064 nm for the atomic states associated with the clock transitions which may be useful for creating "high-field seeking" traps for the above ions using the Nd:YAG laser. The tune out wavelengths at which the states would be free from the Stark shifts are also presented. Accurate values of the electric dipole matrix elements required for these studies are given and trends of electron correlation effects in determining them are also highlighted.
description: Accepted for publication in Phys. Rev. A
A reduction of the string bracket to the loop product
Creators: name: Kuribayashi, Katsuhiko
name: Naito, Takahito
name: Wakatsuki, Shun
name: Yamaguchi, Toshihiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 55P50, 55P35, 55T20

description: The negative cyclic homology for a differential graded algebra over the rational field has a quotient of the Hochschild homology as a direct summand if the $S$-action is trivial. With this fact, we show that the string bracket in the sense of Chas and Sullivan is reduced to the loop product followed by the BV operator on the loop homology provided the given manifold is BV exact. The reduction is indeed derived from the equivalence between the BV exactness and the triviality of the $S$-action. Moreover, it is proved that a Lie bracket on the loop cohomology of the classifying space of a connected compact Lie group possesses the same reduction. By using these results, we consider the non-triviality of string brackets. Another highlight is that a simply-connected space with positive weights is BV exact. Furthermore, the higher BV exactness is also discussed featuring the cobar-type Eilenberg-Moore spectral sequence.
description: This is the version to appear in Algebraic & Geometric Topology
Knowledge Organization Systems in the Law Domain: Benefits and Challenges
Creators: name: Peruginelli, Ginevra
name: Francesconi, Enrico
Publisher: name: Zenodo
Year: 2023
Subjects: subject: Law
subject: FOS: Law
subject: Legal information
subject: Knowledge Organisation System
subject: KOS

description: The legal domain is a complex and dynamic area of knowledge, where the interpretation of legal texts requires a high level of precision and accuracy. Legal information, such as statutes, regulations, case law, and contracts, are typically written in a formal language that is difficult to understand for non-experts. Moreover, legal concepts and terms often have multiple meanings and can vary depending on the context and jurisdiction. Therefore, legal researchers, practitioners, policymakers and even citizens need efficient ways to access, organize, and analyse legal information. Knowledge Organization Systems (KOS) provide a structured way to represent legal concepts, relationships, and rules, which can facilitate access to legal information and improve legal reasoning. Of special interest is the development of specific ontologies conceived to represent fundamental legal concepts which offer a classification of legal provision types (i.e. Obligation, Permission, Right, Duty) and related properties (i.e. PermissionAddressee, PermissionAction), including logical relations between legal concepts. The aim of this approach is to improve the quality of legal texts and ensure the maintenance of legal information by monitoring the impacts of new regulations on the legal system.
Non-negative Ricci curvature and Minimal graphs with linear growth
Creators: name: Colombo, Giulio
name: Gama, Eddygledson Souza
name: Mari, Luciano
name: Rigoli, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study minimal graphs with linear growth on complete manifolds $M^m$ with $\mathrm{Ric} \ge 0$. Under the further assumption that the $(m-2)$-th Ricci curvature in radial direction is bounded below by $C r(x)^{-2}$, we prove that any such graph, if non-constant, forces tangent cones at infinity of $M$ to split off a line. Note that $M$ is not required to have Euclidean volume growth. We also show that $M$ may not split off any line. Our result parallels that obtained by Cheeger, Colding and Minicozzi for harmonic functions. The core of the paper is a new refinement of Korevaar's gradient estimate for minimal graphs, together with heat equation techniques.
description: 34 pages. Final version, some further comments are included. To appear on Anal. PDE
\large\bf $B_c \to (J/Ψ,\,η_c)τν$ semileptonic decays within Standard model and beyond
Creators: name: Dutta, Rupak
name: Bhol, Anupama
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Deviations from the standard model prediction have been observed not only in $b \to c$ charged current interactions but also in $b \to s$ flavor changing neutral current interactions. In particular, the deviation observed in the measured ratio of branching fractions $R_D = \mathcal B(B \to Dτν)/\mathcal B(B \to D\,l\,ν)$ and $R_{D^{\ast}} =\mathcal B(B \to D^{\ast}τν)/\mathcal B(B \to D^{\ast}\,l\,ν)$, where $l = (e,\,μ)$, is more pronounced and the combined excess currently stands at $3.9σ$ level. If it persists and confirmed by future experiments, it would be a definite hint of new physics. In this context, we consider $B_c \to η_c\,l\,ν$ and $B_c \to J/Ψ\,l\,ν$ decays mediated via $b \to c\,l\,ν$ charged current interactions and employ the most general effective Lagrangian in the presence of new physics to give prediction on various observables such as ratio of branching ratio, tau polarization fraction, and forward backward asymmetry for these decay modes.
description: 25 pages, 8 figures
War Diary of 1st Battalion Canadian Scottish Regiment, Vol. 22, June 1, 1941 to June 30, 1941
Creators: name: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Canada. Canadian Army
valueUri: http://id.worldcat.org/fast/531187
subject: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
subject: World War (1939-1945)
valueUri: http://id.worldcat.org/fast/1180924
subject: War diaries
valueUri: http://id.worldcat.org/fast/1745536

description: The war diaries are official records kept by the Battalions during a one month period. They contain the daily orders, correspondence, newsletters, and an intelligence log detailing troop activities, locations, and weather conditions. The war diaries detail the activities and movement of the 1st Battalion from training in Canada and England to active duty on the Western Front and their return to Victoria in January 1946. This diary was kept while at Debert Military Camp, Nova Scotia. It has entries about training, a massed bands, organized sports like softball, track and field, cricket and volleyball, a visit from the Governor-General of Canada and Princess Alice, inoculations, troop movements, and continuing with the weekly best barrack room competition for the Parker Cup, among other activities and information.
On $k$-Shifted Antimagic Spider Forests
Creators: name: Chang, Fei-Huang
name: Li, Wei-Tian
name: Liu, Der-Fen Daphne
name: Pan, Zhishi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C78

description: Let $G(V,E)$ be a simple graph with $m$ edges. For a given integer $k$, a $k$-shifted antimagic labeling is a bijection $f: E(G) \to \{k+1, k+2, \ldots, k+m\}$ such that all vertices have different vertex-sums, where the vertex-sum of a vertex $v$ is the total of the labels assigned to the edges incident to $v$. A graph $G$ is {\it $k$-shifted antimagic} if it admits a $k$-shifted antimagic labeling. For the special case when $k=0$, a $0$-shifted antimagic labeling is known as {\it antimagic labeling}; and $G$ is {\it antimagic} if it admits an antimagic labeling. A spider is a tree with exactly one vertex of degree greater than two. A spider forest is a graph where each component is a spider. In this article, we prove that certain spider forests are $k$-shifted antimagic for all $k \geq 0$. In addition, we show that for a spider forest $G$ with $m$ edges, there exists a positive integer $k_0< m$ such that $G$ is $k$-shifted antimagic for all $k \geq k_0$ and $k \leq -(m+k_0+1)$.
description: 14 pages, 3 figures
Non-linear periodic waves on the Einstein cylinder
Creators: name: Chatzikaleas, Athanasios
name: Smulevici, Jacques
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Motivated by the study of small amplitudes non-linear waves in the Anti-de-Sitter spacetime and in particular the conjectured existence of periodic in time solutions to the Einstein equations, we construct families of arbitrary small time-periodic solutions to the conformal cubic wave equation and the spherically-symmetric Yang-Mills equations on the Einstein cylinder $\mathbb{R}\times \mathbb{S}^3$. For the conformal cubic wave equation, we consider both spherically-symmetric solutions and complexed-valued aspherical solutions with an ansatz relying on the Hopf fibration of the $3$-sphere. In all three cases, the equations reduce to $1+1$ semi-linear wave equations. Our proof relies on a theorem of Bambusi-Paleari for which the main assumption is the existence of a seed solution, given by a non-degenerate zero of a non-linear operator associated with the resonant system. For the problems that we consider, such seed solutions are simply given by the mode solutions of the linearized equations. Provided that the Fourier coefficients of the systems can be computed, the non-degeneracy conditions then amount to solving infinite dimensional linear systems. Since the eigenfunctions for all three cases studied are given by Jacobi polynomials, we derive the different Fourier and resonant systems using linearization and connection formulas as well as integral transformation of Jacobi polynomials. In the Yang-Mills case, the original version of the theorem of Bambusi-Paleari is not applicable because the non-linearity of smallest degree is nonresonant. The resonant terms are then provided by the next order non-linear terms with an extra correction due to backreaction terms of the smallest degree non-linearity and we prove an analogous theorem in this setting.
description: 90 pages, 10 figures, Mathematica files added as ancillary
The faint end of the red sequence galaxy luminosity function: unveiling surface brightness selection effects with the CLASH clusters
Creators: name: Martinet, Nicolas
name: Durret, Florence
name: Adami, Christophe
name: Rudnick, Gregory
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Characterizing the evolution of the faint end of the cluster red sequence (RS) galaxy luminosity function (GLF) with redshift is a milestone in understanding galaxy evolution. However, the community is still divided in that respect, hesitating between an enrichment of the RS due to efficient quenching of blue galaxies from $z\sim1$ to present-day or a scenario in which the RS is built at a higher redshift and does not evolve afterwards. Recently, it has been proposed that surface brightness (SB) selection effects could possibly solve the literature disagreement, accounting for the diminishing of the RS faint population in ground based observations. We investigate this hypothesis by comparing the RS GLFs of 16 CLASH clusters computed independently from ground-based Subaru/Suprime-Cam and HST/ACS images in the redshift range $0.187\leq z\leq0.686$. We stack individual cluster GLFs in redshift and mass bins. We find similar RS GLFs for space and ground based data, with a difference of 0.2$σ$ in the faint end parameter $α$ when stacking all clusters together and a maximum difference of 0.9$σ$ in the case of the high redshift stack, demonstrating a weak dependence on the type of observations in the probed range of redshift and mass. When considering the full sample, we estimate $α= -0.76 \pm 0.07$ and $α= -0.78 \pm 0.06$ with HST and Subaru respectively. We note a mild variation of the faint end with redshift at a 1.7$σ$ and 2.6$σ$ significance. We investigate the effect of SB dimming by simulating our low redshift galaxies at high redshift. We measure an evolution in the faint end slope of less than 1$σ$ in this case, implying that the observed signature is moderately larger than one would expect from SB dimming alone, and indicating a true evolution in the faint end slope. (Abridged...)
description: Accepted for publication in A&A
Assembly and strain information for 500 genomes sourced from the New Zealand environment
Creators: name: Cookson, Adrian
name: Biggs, Patrick J.
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310704
subject: Microbial genetics

description: Escherichia coli is often used as a faecal indicator bacterium for water quality monitoring. We report the draft genome sequences of 500 Escherichia isolates including newly described Escherichia species: namely Escherichia marmotae, Escherichia ruysiae and Escherichia whittamii, obtained from diverse environmental sources to assist with improved public health risk assessments.
A Complex Systems Perspective on Policy Standards for Teacher Learning and Development
Creators: name: Garner, Joanna
name: Kaplan, Avi
Publisher: name: International Journal of Complexity in Education
Year: 2023

description: In the United States, the Interstate Teacher Assessment Consortium (InTASC) Standards and Learning Progressions inform pre-service teacher curricula and in-service teacher professional development and evaluation policies (Council of Chief State School Officers, CCSSO, 2013). We apply a complex dynamic systems (CDS) lens to analyze the Standards document’s ontological assumptions about the nature of teaching and teachers’ professional learning. Our inductive and model-guided content analysis revealed that the Standards’ representation of effective teaching highlights the contextual and iterative, feedback-driven nature of teacher learning and change. Teachers’ learning is described as non-linear and as requiring qualitative reconfigurations of expertise. The development of critical teaching dispositions reflects processes typically associated with identity system exploration. These ideas are congruent with complex dynamic systems theories of teachers’ learning and identity formation such as the Dynamic Systems Model of Role Identity (DSMRI). We derive two conceptual behavioral landscapes for teachers’ practices and for their means of learning. We close by proposing that the findings underscore the importance of partnerships among researchers, practitioners, and policymakers in the use, application, and revision of policy. Keywords: teacher learning, teacher evaluation, complex systems, learning progressions
description: International Journal of Complexity in Education, Vol 1, No 1 (2020)
A Robust Grid-Based Meshing Algorithm for Embedding Self-Intersecting Surfaces
Creators: name: Gagniere, Steven W.
name: Han, Yushan
name: Chen, Yizhou
name: Hyde, David A. B.
name: Marquez-Razon, Alan
name: Teran, Joseph
name: Fedkiw, Ronald
Publisher: name: arXiv
Year: 2022
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: The creation of a volumetric mesh representing the interior of an input polygonal mesh is a common requirement in graphics and computational mechanics applications. Most mesh creation techniques assume that the input surface is not self-intersecting. However, due to numerical and/or user error, input surfaces are commonly self-intersecting to some degree. The removal of self-intersection is a burdensome task that complicates workflow and generally slows down the process of creating simulation-ready digital assets. We present a method for the creation of a volumetric embedding hexahedron mesh from a self-intersecting input triangle mesh. Our method is designed for efficiency by minimizing use of computationally expensive exact/adaptive precision arithmetic. Although our approach allows for nearly no limit on the degree of self-intersection in the input surface, our focus is on efficiency in the most common case: many minimal self-intersections. The embedding hexahedron mesh is created from a uniform background grid and consists of hexahedron elements that are geometrical copies of grid cells. Multiple copies of a single grid cell are used to resolve regions of self-intersection/overlap. Lastly, we develop a novel topology-aware embedding mesh coarsening technique to allow for user-specified mesh resolution as well as a topology-aware tetrahedralization of the hexahedron mesh.
The land flatworm Amaga expatria (Geoplanidae) in Guadeloupe and Martinique: new reports and molecular characterization including complete mitogenome
Creators: name: Justine, Jean-Lou
name: Gey, Delphine
name: Thévenot, Jessica
name: Gastineau, Romain
name: Jones, Hugh D.
Publisher: name: Zenodo
Year: 2020

description: The land flatworm Amaga expatria (Geoplanidae) in Guadeloupe and Martinique: new reports and molecular characterization including complete mitogenome
War Diary of 1st Battalion Canadian Scottish Regiment, Vol. 21, May 1, 1941 to May 31, 1941
Creators: name: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Canada. Canadian Army
valueUri: http://id.worldcat.org/fast/531187
subject: Canada. Canadian Army. Canadian Scottish Regiment (Princess Mary's)
subject: World War (1939-1945)
valueUri: http://id.worldcat.org/fast/1180924
subject: War diaries
valueUri: http://id.worldcat.org/fast/1745536

description: The war diaries are official records kept by the Battalions during a one month period. They contain the daily orders, correspondence, newsletters, and an intelligence log detailing troop activities, locations, and weather conditions. The war diaries detail the activities and movement of the 1st Battalion from training in Canada and England to active duty on the Western Front and their return to Victoria in January 1946. This diary was kept while at Debert Military Camp, Nova Scotia. It has entries about training, working on trench systems, continuing with the weekly best barrack room competition for the Parker Cup, a track meet, a soccer match, the intelligence section constructing an observation post, troop movements, and all men in the battalion receiving a hand book on behalf of the survivors of the 16th battalion of the Canadian Scottish, among other activities and information.
Upper Conical density results for general measures on $\mathbb{R}^n$
Creators: name: Csörnyei, Marianna
name: Käenmäki, Antti
name: Rajala, Tapio
name: Suomala, Ville
Publisher: name: arXiv
Year: 2017
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We study conical density properties of general Borel measures on Euclidean spaces. Our results are analogous to the previously known result on the upper density properties of Hausdorff and packing type measures.
Lα line of dark positronium as nongravitational detection of dark matter
Creators: name: Burdyuzha, V.
name: Charugin, V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Physics (physics.gen-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: An attempt to predict the new atomic dark matter lines is done on the example of a dark lepton atom - positronium. Its Layman-alpha line with the energy near 3 GeV may be observable if the appropriate conditions realize. For this we have studied a γ-ray excess in the Center of our Galaxy. In principle, this excess may be produced by the Lα line of a dark positronium in the medium with Compton scattering. The possibility of observations of an annihilation line (E~300 TeV) of dark positronium is also predicted. Other proposals to observe the atomic dark matter are shortly described. Besides, Hα line (1.3μ) of usual positronum must be observable in the direction on the Center of our Galaxy.
description: 10 pages, 0 figures
How to Measure Expressed Pedagogical Content Knowledge in Real-Time Interaction? An Illustration from the Field of Out-of-School Science Activities
Creators: name: Geveke, Carla
name: Steenbeek, Henderien
name: Doornenbal, Jeannette
name: Van Geert, Paul
Publisher: name: International Journal of Complexity in Education
Year: 2023

description: Although Pedagogical Content Knowledge (PCK) is traditionally defined as a static quality that teachers possess and apply in practice, we conceive of PCK as constituted by a dynamic, mutually influencing process between teacher and students. This co-constructing process is expressed in real-time interaction and defined by us as Expressed Pedagogical Content Knowledge (EPCK). The aim of this study is to develop a practically usable instrument that can track the microgenetic moment-to-moment interaction that embodies EPCK, and that enables us to observe different features and levels of EPCK in the form of changes in this interaction dynamics. We were interested to know how EPCK emerges and develops on the short-term time scale of classroom interaction. After presenting a general account of complex dynamic systems based measurement of psychological constructs (e.g., PCK), we describe a coding scheme for teacher-student interactions, based on theoretical EPCK components. The instrument was applied in an empirical observation study of a visit to a mobile planetarium by a grade 3 primary school class. A principal factor analysis was used to find latent EPCK components. Results show, firstly, that the instrument was reliable. Secondly, the variables in the coding scheme were relevant in view of the underlying theory. Thirdly, over the time course of the teaching session, latent components displayed various levels of EPCK – high, low or no ECPK. Instead of being an enduring or stable property of teaching-learning interactions, EPCK is a dynamic property occurring in the form of sequences of high and low levels, and corresponding peaks in the latent factors. Notably, EPCK did not appear in the form of a continuous steady state level but occurred in the form of bursts of high-level EPCK. We conclude that our coding scheme provides an adequate method for studying pedagogical content knowledge as it self-organizes in the form of real-time activity in the classroom. Keywords: complex dynamic systems approach, teaching-learning interaction, expressed pedagogical content knowledge, out-of-school science education, observation instrument, process validity
description: International Journal of Complexity in Education, Vol 1, No 1 (2020)
Causal perturbative QED and white noise
Creators: name: Wawrzycki, Jaroslaw
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present the Bogoliubov's causal perturbative QFT, which includes only one refinement: the creation-annihilation operators at a point, \emph{i.e.} for a specific momentum, are mathematically interpreted as the Hida operators from the white noise analysis. We leave the rest of the theory completely unchanged. This allows avoiding infrared -- and ultraviolet -- divergences in the transition to the adiabatic limit for interacting fields. We present here the analysis of the causal axioms for the scattering operator with the Hida operators as the creation-annihilation operators.
description: arXiv admin note: substantial text overlap with arXiv:1802.06719
Photogalvanic probing of helical edge channels in 2D HgTe topological insulators
Creators: name: Dantscher, K. -M.
name: Kozlov, D. A.
name: Scherr, M. T.
name: Gebert, S.
name: Baerenfaenger, J.
name: Durnev, M. V.
name: Tarasenko, S. A.
name: Bel'kov, V. V.
name: Mikhailov, N. N.
name: Dvoretsky, S. A.
name: Kvon, Z. D.
name: Weiss, D.
name: Ganichev, S. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the observation of a circular photogalvanic current excited by terahertz (THz) laser radiation in helical edge channels of HgTe-based 2D topological insulators (TIs). The direction of the photocurrent reverses by switching the radiation polarization from right-handed to left-handed one and, for fixed photon helicity, is opposite for the opposite edges. The photocurrent is detected in a wide range of gate voltages. With decreasing the Fermi level below the conduction band bottom, the current emerges, reaches a maximum, decreases, changes its sign close to the charge neutrality point (CNP), and again rises. Conductance measured over a 7 $μ$m distance at CNP approaches 2e2/h, the value characteristic for ballistic transport in 2D TIs. The data reveal that the photocurrent is caused by photoionization of helical edge electrons to the conduction band. We discuss the microscopic model of this phenomenon and compare calculations with the experimental data.
Soft technologies and multimedia for teaching-learning of patients with intestinal stomas and their relatives in the perioperative period: an integrative review
Creators: name: Gramacho, Samira
name: Vinícius da Silva do Nascimento, Kauan
name: Correa Júnior, Antonio Jorge S.
name: Aguiar, Janderson Cleiton
name: Teles, André
name: Sonobe, Helena Megumi
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 420599
subject: Nursing not elsewhere classified

description: This is a six-step integrative review protocol, whose objective is to analyze and classify soft technologies and multimedia for the teaching-learning of people with intestinal stomas and their families in perioperative care.
title: Возможности биологической терапии при псориазе
title: Possibilities of Psoriasis Biological Therapy
Creators: name: Сарсур, Шади Х. Р.
name: Руднева, Наталья Сергеевна
Publisher: name: Издательский центр СурГУ
Year: 2022

description: Цель – анализ современных возможностей терапии псориаза генно-инженерными биологическими препаратами. Материалы и методы. Проанализированы метаанализы основных способов лечения
псориаза среднетяжелого и тяжелого течения за последние 10 лет, наиболее эффективные и безопасные биологические препараты и особенности их назначения при различных сопутствующих состояниях. Результаты.
Оценка результатов долгосрочного применения биологических препаратов показала их относительную безопасность. Потенциально более высокие риски злокачественности и инфицирования при биологической терапии требуют их назначения строго с учетом сопутствующих состояний. Доказательств неблагоприятного влияния биологических препаратов на течение сопутствующих заболеваний недостаточно.
description: The study aims to investigate the modern possibilities for psoriasis therapy using genetic
engineering biological drugs. Materials and methods. The main meta-analyses on modern methods of treating
moderate and severe psoriasis over the past 10 years have been examined. The most effective and safe biological
drugs, as well as the features of their prescriptions for various concomitant conditions, have been identified.
Results. Long-term use of biological drugs was evaluated and found to be relatively safe. Due to the potentially
higher risks of malignancy and infection in biological therapy, biological drugs must be prescribed strictly
according to concomitant conditions. There is insufficient evidence that biological drugs have a negative impact
on the progression of concomitant diseases.
Effect of NPS and Nitrogen Fertilizer Application Rates for Small Pod Hot Pepper Production (Capsicum Annuum L) Variety at Kellem and West Wollega Zones
Creators: name: Kibiru Kena, Alemayehu Latera
Publisher: name: Zenodo
Year: 2024

description: Small pod hot pepper is grown as an annual crop and produced for its fruits. It is one of the most important vegetable crops for fresh consumption, for processing and as a spice (for making stew). A field experiment was conducted at HaroSabu Agricultural Research Center on station, Sedi Canqa and Lalo Qile sub sites of KellemWollega zone, Western Ethiopia, during the 2020 and 2021 main cropping seasons. Thirteen fertilizer combinations were used as experimental materials. The combined analysis of variance for total yield and other agronomic traits revealed highly significant differences in, plant height, plant canopy length, number of pods per plant and total dry pod yield; whereas days to flowering, days to maturity, number of primary branches per plant, pod length, pod diameter and pod weight revealed non-significant effect. In this experimentation, the combination of 150 kg/ha NPSand 150kg/ha N(urea) fertilizer rate was found superior in terms of economic yield (marketable yield), and yield component parameters. The marginal rate of return also directed the highest net benefit from the combined fertilizer rate of 150kg/ha NPS and 150kg/ha N(urea). Thus the combined fertilizer rate of 150kg/ha NPS and 150kg/ha N(urea) is recommended for the yield increment of small pod hot pepper in the studied areas of  Western Oromia.
Cascade of magnetic-field-driven quantum phase transitions in Ce3Pd20Si6
Creators: name: Mazza, F.
name: Portnichenko, P. Y.
name: Avdoshenko, S.
name: Steffens, P.
name: Boehm, M.
name: Choi, Eun Sang
name: Nikolo, M.
name: Yan, X.
name: Prokofiev, A.
name: Paschen, S.
name: Inosov, D. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetically hidden order is a hypernym for electronic ordering phenomena that are visible to macroscopic thermodynamic probes but whose microscopic symmetry cannot be revealed with conventional neutron or x-ray diffraction. In a handful of f-electron systems, the ordering of odd-rank multipoles leads to order parameters with a vanishing neutron cross-section. Among them, Ce$_3$Pd$_{20}$Si$_6$ is known for its unique phase diagram exhibiting two distinct multipolar-ordered ground states (phases II and II'), separated by a field-driven quantum phase transition associated with a putative change in the ordered quadrupolar moment from $O_2^0$ to $O_{xy}$. Using torque magnetometry at subkelvin temperatures, here we find another phase transition at higher fields above 12 T, which appears only for low-symmetry magnetic field directions $\mathbf{B} \parallel \langle11L\rangle$ with $1 < L \leq 2$. While the order parameter of this new phase II'' remains unknown, the discovery renders Ce$_3$Pd$_{20}$Si$_6$ a unique material with two field-driven phase transitions between distinct multipolar phases. They are both clearly manifested in the magnetic-field dependence of the field-induced (111) Bragg intensities measured with neutron scattering for $\mathbf{B} \parallel [112]$. We also find from inelastic neutron scattering that the number of nondegenerate collective excitations induced by the magnetic field correlates with the number of phases in the magnetic phase diagram for the same field direction. Furthermore, the magnetic excitation spectrum suggests that the new phase II'' may have a different propagation vector, revealed by the minimum in the dispersion that may represent the Goldstone mode of this hidden-order phase.
description: 10 pages, 6 figures, 3 tables
Clinical features associated with ADB-BUTINACA exposure in patients attending emergency departments in England
Creators: name: King, A.
name: Hill, S. L.
name: Pucci, M.
name: Bailey, G.
name: Keating, L.
name: Macfarlane, R.
name: Cantle, F.
name: Hudson, S.
name: Thomas, S. H. L.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Synthetic cannabinoid receptor agonists (SCRA) are commonly encountered new psychoactive substances. Here we report the recent detection of ADB-BUTINACA in samples from patients attending United Kingdom emergency departments with toxicity after suspected drug misuse and describe the associated clinical features. Consenting adults (≥16 y) presenting to participating hospitals with toxicity after suspected drug misuse have been included in the Identification Of Novel psychoActive substances (IONA) study since March 2015. Demographic and clinical features are recorded and blood and/or urine samples analysed using high-resolution accurate mass liquid chromatography-mass spectrometry. By December 2021, analytical data were available for 1279 IONA participants and ADB-BUTINACA was detected in at least one sample from 10 (9 males, age range 16–51 median 45 years), all presenting since February 2021. Smoking ‘spice’ was reported by four patients, two had ingested edible “cannabis” gums and four reported heroin use (2 intravenous, 1 smoked, 1 route not known). Co-use of pregabalin (oral) and crack cocaine (smoked) were also reported. In 3 cases ADB-BUTINACA was the only substance detected, while in seven other substances of misuse were also detected including other SCRA, opioids, benzodiazepines cocaine and pregabalin. Clinical features reported in these 2 groups respectively included reduced level of consciousness (3/3, 6/7), agitation (0/3, 4/7), tachycardia (0/3, 3/7), seizures (1/3, 1/7), hallucinations (1/3, 1/7), hypotension (1/3, 1/7). Metabolic acidosis (1/3, 0/7) and respiratory acidosis (1/3, 0/7), All 10 patients recovered with supportive care, including intubation and ventilation for one case. The median length of hospital stay was 19 h (range 2.6–131 h). ADB-BUTINACA has recently emerged as a drug of misuse in England. Clinical features of toxicity are consistent with those of other SCRA and include reduced level of consciousness, respiratory and/or metabolic acidosis, seizures, confusion and hallucinations.
Systematic Reviews of Machine Learning Applications in Corn: A Literature Review
Creators: name: Ronie A. Pansoy, Erick J. Garcia, Edwin R. Arboleda
Publisher: name: Zenodo
Year: 2024

description: In the realm of corn cultivation, Machine learning application revolutionizes conventional farming methods by imposing advanced algorithms to analyze diverse datasets. Machine learning can be applied in projecting crop yields, detecting diseases, and controlling weeds. This method eventually enhances efficiency and crop productivity. The goal of the literature review is to analyze systematically and incorporate the existing collection of research on machine learning applications in the context of corn cultivation. The review investigates the vast range of machine learning techniques employed, their impact, and their effectiveness on different aspects of corn agriculture. The review highlights the different models that are used in different applications of machine learning in corn cultivation and its impact in the economy and environment.  This review gives valuable insights for researchers, practitioners, and policymakers aiming to integrate machine learning technology to optimize corn production by examining the present state of knowledge
Mapping the Perception of “Complex Systems” across Educational Levels through Cognitive Network Science
Creators: name: Stella, Massimo
Publisher: name: International Journal of Complexity in Education
Year: 2023

description: Despite recent efforts promoting complexity science across different educational contexts, there is little literature about how school students perceive complex systems. This research report aims to quantify the current perception of “complex systems” among 159 Italian high school students, providing a data-informed map of the general attitude and knowledge structure towards complexity through tools from cognitive network science. Adopting the framework of forma mentis networks, i.e. conceptual networks where words are related by memory recall patterns and labelled according to their positive/negative/neutral sentiment, the students’ mindset or forma mentis towards “complex systems” was reconstructed and compared to the mindset of 59 international postgraduate researchers working on complexity topics. Despite studying multiple scientific disciplines at the same time, students perceived complexity as an abstract and negative entity, strongly associated to “complicated” and “difficult” whereas researchers identified complexity as a positive concept, with a stronger STEM-oriented, multidisciplinary connotation towards mathematics, physics, biology and other scientific disciplines. This comparison was discussed in light of relevant literature about silo mentality in education. Mindset reconstruction through forma mentis networks opens novel ways for quantifying current perceptions of “complexity science” in mainstream educational curricula, suggesting key challenges for developing complexity education through the mindsets of complexity researchers. Keywords: complex networks, education, complex systems, cognitive network science
description: International Journal of Complexity in Education, Vol 1, No 1 (2020)
Peduncle Detection of Sweet Pepper for Autonomous Crop Harvesting - Combined Colour and 3D Information
Creators: name: Sa, Inkyu
name: Lehnert, Chris
name: English, Andrew
name: McCool, Chris
name: Dayoub, Feras
name: Upcroft, Ben
name: Perez, Tristan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper presents a 3D visual detection method for the challenging task of detecting peduncles of sweet peppers (Capsicum annuum) in the field. Cutting the peduncle cleanly is one of the most difficult stages of the harvesting process, where the peduncle is the part of the crop that attaches it to the main stem of the plant. Accurate peduncle detection in 3D space is therefore a vital step in reliable autonomous harvesting of sweet peppers, as this can lead to precise cutting while avoiding damage to the surrounding plant. This paper makes use of both colour and geometry information acquired from an RGB-D sensor and utilises a supervised-learning approach for the peduncle detection task. The performance of the proposed method is demonstrated and evaluated using qualitative and quantitative results (the Area-Under-the-Curve (AUC) of the detection precision-recall curve). We are able to achieve an AUC of 0.71 for peduncle detection on field-grown sweet peppers. We release a set of manually annotated 3D sweet pepper and peduncle images to assist the research community in performing further research on this topic.
description: 8 pages, 14 figures, Robotics and Automation Letters
Turning vector bundles
Creators: name: Crowley, Diarmuid
name: Nagy, Csaba
name: Sims, Blake
name: Yang, Huijun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We define a turning of a rank-$2k$ vector bundle $E \to B$ to be a homotopy of bundle automorphisms $ψ_t$ from $\mathbb{Id}_E$, the identity of $E$, to $-\mathbb{Id}_E$, minus the identity, and call a pair $(E, ψ_t)$ a turned bundle. We investigate when vector bundles admit turnings and develop the theory of turnings and their obstructions. In particular, we determine which rank-$2k$ bundles over the $2k$-sphere are turnable.
 If a bundle is turnable, then it is orientable. In the other direction, complex bundles are turned bundles and for bundles over finite $CW$-complexes with rank in the stable range, Bott's proof of his periodicity theorem shows that a turning of $E$ defines a homotopy class of complex structure on $E$. On the other hand, we give examples of rank-$2k$ bundles over $2k$-dimensional spaces, including the tangent bundles of some $2k$-manifolds, which are turnable but do not admit a complex structure. Hence turned bundles can be viewed as a generalisation of complex bundles.
 We also generalise the definition of turning to other settings, including other paths of automorphisms, and we relate the generalised turnability of vector bundles to the topology of their gauge groups and the computation of certain Samelson products.
description: Extensive minor revisions: added Section 3.3 on the relationship between Samelson products and turning obstructions and the high-dimensional homotopy groups of certain gauge groups; corrected the statement of Theorem 1.3, one other mistake and various mis-prints. 28 pages