cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Instabilities of periodic orbits with spatio-temporal symmetries
Creators: name: Rucklidge, A. M.
name: Silber, Mary
Publisher: name: arXiv
Year: 1997
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Motivated by recent analytical and numerical work on two- and three-dimensional convection with imposed spatial periodicity, we analyse three examples of bifurcations from a continuous group orbit of spatio-temporally symmetric periodic solutions of partial differential equations. Our approach is based on centre manifold reduction for maps, and is in the spirit of earlier work by Iooss (1986) on bifurcations of group orbits of spatially symmetric equilibria. Two examples, two-dimensional pulsating waves (PW) and three-dimensional alternating pulsating waves (APW), have discrete spatio-temporal symmetries characterized by the cyclic groups Z_n, n=2 (PW) and n=4 (APW). These symmetries force the Poincare return map M to be the nth iterate of a map G: M=G^n. The group orbits of PW and APW are generated by translations in the horizontal directions and correspond to a circle and a two-torus, respectively. An instability of pulsating waves can lead to solutions that drift along the group orbit, while bifurcations with Floquet multiplier +1 of alternating pulsating waves do not lead to drifting solutions. The third example we consider, alternating rolls, has the spatio-temporal symmetry of alternating pulsating waves as well as being invariant under reflections in two vertical planes. When the bifurcation breaks these reflections, the map G has a "two-symmetry", as analysed by Lamb (1996). This leads to a doubling of the marginal Floquet multiplier and the possibility of bifurcation to two distinct types of drifting solutions.
description: 18 pages, 3 figures, TeX, Institute of Physics preprint iopppt.tex and epsf.tex. Submitted to Nonlinearity. mpeg simulations available at http://www.damtp.cam.ac.uk/user/alastair/papers/RS_STsymms_abs.shtml
Gratioleae
Creators: name: Mourad, Magdy M.
name: Abdel-Hameed, U. K.
name: Mariam, I. H.
name: Tantawy, M. E.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Plantaginaceae

description: In tribe Gratioleae
Torenia fournieri occupies a highest status through sepals united, sepal marginal, petal and lateral carpellary bundles originated from vascular complexes, corolla bilipped (2,3), four staminal traces, ventral cord and non-vascularized nectariferous disc.
description: Published as part of Mourad, Magdy M., Abdel-Hameed, U. K., Mariam, I. H. & Tantawy, M. E., 2015, Diversity and evolutionary trends in the floral characters of some taxa of Scrophulariaceae sensu lato, pp. 149-159 in Adansonia 37 (1) on page 156, DOI: 10.5252/a2015n1a10, http://zenodo.org/record/5153871
Three-point correlation function of a scalar mixed by an almost smooth random velocity field
Creators: name: Balkovsky, E.
name: Falkovich, G.
name: Lebedev, V.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We demonstrate that if the exponent $γ$ that measures non-smoothness of the velocity field is small then the isotropic zero modes of the scalar's triple correlation function have the scaling exponents proportional to $\sqrtγ$. Therefore, zero modes are subleading with respect to the forced solution that has normal scaling with the exponent $γ$.
description: 13 pages, RevTeX 3.0
Additional file 1: of Voxel-wise analysis of dynamic 18F-FET PET: a novel approach for non-invasive glioma characterisation
Creators: name: Vomacka, Lena
name: Unterrainer, Marcus
name: Holzgreve, Adrien
name: Mille, Erik
name: Gosewisch, Astrid
name: Brosch, Julia
name: Ziegler, Sibylle
name: Suchorska, Bogdana
name: Kreth, Friedrich-Wilhelm
name: Tonn, Jörg-Christian
name: Bartenstein, Peter
name: Albert, Nathalie
name: Böning, Guido
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology
subject: Cardiology

description: Table S1. P values end effect sizes r from post hoc analysis for histologic and molecular genetic differentiation. Effect size r is shown colour coded (white-yellow-red continuously scaled from minimal to maximal r value). Table S2. Area under the curve (AUC) from ROC analysis and the optimal thresholds (T) chosen for the highest product of sensitivity (Se, units: %) and specificity (Sp, units: %). Thresholds are given in units of TTP (units: min p.i.), Slope15–40 (units: SUV/h), TBR (units: 1), and BTV20–40 (units: mL) from VOI-based analysis, and voxel-wise PVH (units: %). AUC is shown colour coded (white-yellow-red continuously scaled from minimal to maximal AUC value). Figure S1. Exemplary voxel-wise TACs belonging to the glioma examples shown in Fig. 5. a Voxel-TACs with application of a Gaussian (10 mm FWHM) on dynamic PET data. b Original voxel-TACs without pre-processing of the dynamic PET data. (DOCX 145 kb)
Electronic structure and optical properties of halide double perovskites from a Wannier-localized optimally-tuned screened range-separated hybrid functional
Creators: name: Sagredo, Francisca
name: Gant, Stephen E.
name: Ohad, Guy
name: Haber, Jonah B.
name: Filip, Marina R.
name: Kronik, Leeor
name: Neaton, Jeffrey B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Halide double perovskites are a chemically-diverse and growing class of compound semiconductors that are promising for optoelectronic applications. However, the prediction of their fundamental gaps and optical properties with density functional theory (DFT) and {\it ab initio} many-body perturbation theory has been a significant challenge. Recently, a nonempirical Wannier-localized optimally-tuned screened range-separated hybrid (WOT-SRSH) functional has been shown to accurately produce the fundamental band gaps of a wide set of semiconductors and insulators, including lead halide perovskites. Here we apply the WOT-SRSH functional to five halide double perovskites, and compare the results with those obtained from other known functionals and previous $GW$ calculations. We also use the approach as a starting point for $GW$ calculations and we compute the band structures and optical absorption spectrum for Cs\textsubscript{2}Ag{Bi}Br\textsubscript{6}, using both time-dependent DFT and the $GW$-Bethe-Salpeter equation approach. We show that the WOT-SRSH functional leads to accurate fundamental and optical band gaps, as well as optical absorption spectra, consistent with spectroscopic measurements, thereby establishing WOT-SRSH as a viable method for the accurate prediction of optoelectronic properties of halide double perovskites.
A Study to Assess the Belligerent Behaviour Among the Adolescent Girls Studying in Selected Private Institutions of Distt. Shimla (H.P)
Creators: name: Ruchika Sharma
name: Shivani
Publisher: name: International Journal of Current Research and Techniques
Year: 2025
Subjects: Belligerent
Adolescent

description: Adolescence is a crucial developmental phase characterized by rapid physical, emotional, and psychological changes. During this period, individuals may experience heightened stress, confusion, and emotional turmoil, which can manifest as aggressive or belligerent behaviour. Belligerent behaviour includes actions that cause physical or emotional harm and often violate social norms and boundaries. The present study was conducted to assess the level of belligerent behaviour among adolescent girls studying in selected private institutions of District Shimla, Himachal Pradesh. A quantitative, non-experimental research design was adopted, and 157 adolescent girls were selected through a random sampling technique. Data was collected using standardized questionnaires and analyzed using SPSS software. The findings revealed that the majority of adolescent girls exhibited low levels of belligerent behaviour. Among the dimensions assessed, verbal belligerence was more commonly observed, while hostility remained low in most participants. The study highlights the need for timely psychological interventions and preventive strategies to manage emotional and behavioural issues among adolescents.
Stochastic Computing with Integrated Optics
Creators: name: El-Derhalli, Hassnaa
name: Beux, Sébastien Le
name: Tahar, Sofiene
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Stochastic computing (SC) allows reducing hardware complexity and improving energy efficiency of error resilient applications. However, a main limitation of the computing paradigm is the low throughput induced by the intrinsic serial computing of bit-streams. In this paper, we address the implementation of SC in the optical domain, with the aim to improve the computation speed. We implement a generic optical architecture allowing the execution of polynomial functions. We propose design methods to explore the design space in order to optimize key metrics such as circuit robustness and power consumption. We show that a circuit implementing a 2 nd order polynomial degree function and operating at 1Ghz leads to 20.1pJ laser consumption per computed bit.
Pairing Clustered Inverted Indexes with kNN Graphs for Fast Approximate Retrieval over Learned Sparse Representations
Creators: name: Bruch, Sebastian
name: Nardini, Franco Maria
name: Rulli, Cosimo
name: Venturini, Rossano
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Learned sparse representations form an effective and interpretable class of embeddings for text retrieval. While exact top-k retrieval over such embeddings faces efficiency challenges, a recent algorithm called Seismic has enabled remarkably fast, highly-accurate approximate retrieval. Seismic statically prunes inverted lists, organizes each list into geometrically-cohesive blocks, and augments each block with a summary vector. At query time, each inverted list associated with a query term is traversed one block at a time in an arbitrary order, with the inner product between the query and summaries determining if a block must be evaluated. When a block is deemed promising, its documents are fully evaluated with a forward index. Seismic is one to two orders of magnitude faster than state-of-the-art inverted index-based solutions and significantly outperforms the winning graph-based submissions to the BigANN 2023 Challenge. In this work, we speed up Seismic further by introducing two innovations to its query processing subroutine. First, we traverse blocks in order of importance, rather than arbitrarily. Second, we take the list of documents retrieved by Seismic and expand it to include the neighbors of each document using an offline k-regular nearest neighbor graph; the expanded list is then ranked to produce the final top-k set. Experiments on two public datasets show that our extension, named SeismicWave, can reach almost-exact accuracy levels and is up to 2.2x faster than Seismic.
title: An Examination into the Molecular Associations Between Cholesterol Homeostasis and the Neurodegenerative Disease Ataxia telangiectasia
Creators: name: Nourse, Jamie
Publisher: name: Griffith University
Year: 2008
Subjects: subject: cholesterol homeostasis
subject: neurodegenerative syndrome
subject: Ataxia telangiectasia
subject: neurodegenerative syndrome Ataxia telangiectasia
subject: A-T syndrome
subject: multisystem disorder
subject: neurodegeneration

description: The Ataxia telangiectasia (A-T) syndrome is a multisystem disorder exhibiting a complex array of clinical features for which there is no effective therapy. The earliest and most debilitating aspect of this disease is progressive ataxia resulting from neurodegeneration of the cerebellum. Several lines of evidence suggest a potential function for ATM in the maintenance of cellular homeostasis, and disruptions in functional ATM appear to result in alterations cholesterol homeostasis. This association may provide some insight into the neurodegenerative aspect of this disease. Cholesterol homeostasis is particularly significant in the central nervous system (CNS) with several neurodegenerative disorders involving disturbances in cholesterol homeostasis. The goal of this thesis was to attempt to establish a potential relationship between ATM and cholesterol homeostasis. As well it was hoped the establishment of a mechanism for such a relationship may help contribute to the establishment of therapies for this debilitating aspect of A-T...
Resource management at Highland Valley Copper
Creators: name: Munro, W. K. D.
Publisher: name: The University of British Columbia
Year: 2009

description: Resource management in today's setting involves the recognition and basic understanding of the interrelationships and interdependencies within the ecosystem. The successful extraction of mineral resources requires an equally well-structured and results-oriented approach to the land and water management. Land and water management involves establishing baselines of information, carrying out appropriate research, conducting suitable field trials, developing end land use plans, and carrying out the accepted plan. Consultation and consensus represent new approaches which recognize the multi-use demands on the physical resources of the earth by our society. This integrated resource management approach will serve as the framework for Highland Valley Copper.
Experimental Studies of Magnetic Islands, Configurations and Plasma Confinement in the H-1NF Heliac
Creators: name: Kumar, Santhosh Tekke Athayil
Publisher: name: The Australian National University
Year: 2007
Subjects: Magnetic Islands
Wire Tomography
Radial Electric Field
Core Electron-Root

description: Rational magnetic flux surfaces in fusion (toroidal plasma confinement) devices can break the magnetic field lines and reconnect them in the form of magnetic islands. Formation of these magnetic islands can have a serious impact on the plasma confinement properties of the device. Islands can in general degrade the confinement by mixing up different regions of the plasma. However there has been experimental evidence of confinement improvement by island induced transport barriers, under certain conditions. Even though there are a large number of theoretical and experimental works on magnetic islands to date, there is clearly a paucity of convincing experimental understanding on the nature of behaviour of islands in plasma. This thesis reports detailed experimental studies conducted on the H-1NF heliac stellarator, to gain an in-depth understanding of magnetic islands and their influence in plasma confinement. ¶ ...
The Flux-Across-Surfaces Theorem for a Point Interaction Hamiltonian
Creators: name: Panati, G.
name: Teta, A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81U05 (Primary) 81P99 (Secondary)

description: The flux-across-surfaces theorem establishes a fundamental relation in quantum scattering theory between the asymptotic outgoing state and a quantity which is directly measured in experiments. We prove it for a hamiltonian with a point interaction, using the explicit expression for the propagator. The proof requires only assuptions on the initial state and it covers also the case of zero-energy resonance. We also outline a different approach based on generalized eigenfunctions, in view of a possible extension of the result.
description: AMS-Latex file, 11 pages
Frontinellina frutetorum
Creators: name: Tanasevitch, Andrei V.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Frontinellina
Frontinellina frutetorum

description: Frontinellina frutetorum (C. L. Koch, 1834)
MATERIAL: 1 ♀, Greece, Crete, Lasithi, near route Lasithi - Iraklion, above bifurcation to Krasi, 570 m a.s.l., 7. V.1985, leg. C. Lienhard [Nax-85/14].
RANGE: West Palaearctic.
description: Published as part of Tanasevitch, Andrei V., 2011, On linyphiid spiders (Araneae) from the Eastern and Central Mediterranean kept at the Muséum d'histoire naturelle, Geneva, pp. 49-91 in Revue suisse de Zoologie 118 (1) on page 64, DOI: 10.5962/bhl.part.117799, http://zenodo.org/record/6311696
Ecological Associations of the Hooded Parrot (Psephotus dissimilis)
Creators: name: Cooney, Stuart John Norman
Publisher: name: The Australian National University
Year: 2009
Subjects: hooded
parrot
psephotus
dissimilis
psittacidae
trisyntopa
neossophilla
scatophagy
termite
nest
breeding
lepidoptera
tropic

description: Interactions between nesting birds and invertebrates are a common, yet poorly understood ecological phenomenon. Many of these types of interactions are close and prolonged, and therefore potentially critical to one or both of the species involved in the interaction. However it is unusual for the nature of the interaction to be evaluated in a manner that reveals the impact of the relationship on both parties to the interaction. This study examines two relationships between nesting birds and invertebrates, both of which involve the hooded parrot (Psephotus dissimilis), a small grass parrot that inhabits the tropical savannas of northern Australia. ¶ The field-work for this project was conducted over two parrot breeding seasons in 2006 and 2007 near Katherine, Northern Territory, in the Australian dry tropics. ...
¿Quiénes administran las elecciones? Hacia un índice de capacidades de los organismos electorales en América Latina
Creators: name: Observatorio de Reformas Políticas en América Latina
Publisher: name: Zenodo
Year: 2025
Subjects: Organismos electorales
Independencia institucional
Democracia en América Latina
Integridad electoral
Índice de capacidades

description: El estudio aborda la necesidad de desarrollar un índice para evaluar las capacidades de los organismos electorales (OE) en América Latina. En un contexto de desafíos crecientes a la democracia en la región, el índice propuesto pretende clasificar a los OE basándose en su nivel de independencia del poder ejecutivo, la concentración de sus funciones y su capacidad para resistir presiones políticas. Utilizando una metodología comparativa, este trabajo investiga los distintos diseños institucionales de los OE y sus implicaciones en la confianza ciudadana y la integridad electoral. A través de un enfoque multidimensional, el índice aspira a ser una herramienta fundamental para analizar y fortalecer la resiliencia de las instituciones electorales frente a los avances autoritarios.
Superconformal mechanics, black holes, and non-linear realizations
Creators: name: de Azcarraga, J. A.
name: Izquierdo, J. M.
name: Bueno, J. C. Perez
name: Townsend, P. K.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The OSp(2|2)-invariant planar dynamics of a D=4 superparticle near the horizon of a large mass extreme black hole is described by an N=2 superconformal mechanics, with the SO(2) charge being the superparticle's angular momentum. The {\it non-manifest} superconformal invariance of the superpotential term is shown to lead to a shift in the SO(2) charge by the value of its coefficient, which we identify as the orbital angular momentum. The full SU(1,1|2)-invariant dynamics is found from an extension to N=4 superconformal mechanics.
description: 19 pages, plain latex file. Slightly shortened version, two references added
Compacton Solutions in a Class of Generalized Fifth Order Korteweg-de Vries Equations
Creators: name: Cooper, Fred
name: Hyman, James M.
name: Khare, Avinash
Publisher: name: arXiv
Year: 1997
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We study a class of generalized fifth order Korteweg-de Vries (KdV) equations which are derivable from a Lagrangian L(p,m,n,l) which has variable powers of the first and second derivatives of the field with powers given by the parameters p,m,n,l. The resulting field equation has solitary wave solutions of both the usual (non-compact) and compact variety ("compactons"). For the particular case that p=m=n+l, the solitary wave solutions have compact support and the feature that their width is independent of the amplitude. We discuss the Hamiltonian structure of these theories and find that mass, momentum, and energy are conserved. We find in general that these are not completely integrable systems. Numerical simulations show that an arbitrary compact initial wave packet whose width is wider than that of a compacton breaks up into several compactons all having the same width. The scattering of two compactons is almost elastic, with the left over wake eventually turning into compacton-anticompacton pairs. When there are two different compacton solutions for a single set of parameters the wider solution is stable, and this solution is a minimum of the Hamiltonian.
description: 13 pages (8 embedded figures), RevTeX (plus macro), uses epsf
Aiming Low Is Harder -- Induction for Lower Bounds in Probabilistic Program Verification
Creators: name: Hark, Marcel
name: Kaminski, Benjamin Lucien
name: Giesl, Jürgen
name: Katoen, Joost-Pieter
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We present a new inductive rule for verifying lower bounds on expected values of random variables after execution of probabilistic loops as well as on their expected runtimes. Our rule is simple in the sense that loop body semantics need to be applied only finitely often in order to verify that the candidates are indeed lower bounds. In particular, it is not necessary to find the limit of a sequence as in many previous rules.
title: Dolichothele camptotricha (Dams.) Tieg.
Creators: name: :None
Publisher: name: Universitätsbibliothek
Year: 2009
Subjects: subject: Digitale Pflanzenbilder: Sammlung Dietmar Brandes
subject: 580

description: Pflanzensammlung Dietmar Brandes: Digitale Pflanzenbilder
Archiving of ABC local radio programs
Creators: name: Krausmann, J
Publisher: name: CQUniversity
Year: 2017
Subjects: classificationCode: 490401
subject: Algebra and number theory

description: Studies how many of the thousands of hours of ABC Local Radio programs are being recorded and archived for future reuse, as well as how it is being done, what program makers think about such a task, and how well this proportion can be increased in the near future.
Additional file 2 of Clinically relevant factors associated with quantitative optical coherence tomography angiography metrics in deep capillary plexus in patients with diabetes
Creators: name: Tang, Fang
name: Chan, Erica
name: Sun, Zihan
name: Wong, Raymond
name: Lok, Jerry
name: Szeto, Simon
name: Chan, Jason
name: Lam, Alexander
name: Tham, Clement
name: Ng, Danny
name: Cheung, Carol
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 2: Figure S1. Examples of images showing different morphologies between superficial capillary plexus (SCP, a-c) and deep capillary plexus (DCP, d-f) in diabetic eyes
Hamiltonian reformulation and pairing of Lyapunov exponents for Nose-Hoover dynamics
Creators: name: Dettmann, C. P.
name: Morriss, G. P.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The Nose Hamiltonian is adapted, leading to a derivation of the Nose-Hoover equations of motion which does not involve time transformations, and in which the degree of freedom corresponding to the external reservoir is treated on the same footing as those of the rest of the system. In this form it is possible to prove the conjugate pairing rule for Lyapunov exponents of this system.
description: revtex, 4 pages, no figures, to appear in Phys. Rev. E
Additional file 1 of An integrative analysis of genome-wide association study and regulatory SNP annotation datasets identified candidate genes for bipolar disorder
Creators: name: Qi, Xin
name: Wen, Yan
name: Li, Ping
name: Liang, Chujun
name: Cheng, Bolun
name: Ma, Mei
name: Cheng, Shiqiang
name: Zhang, Lu
name: Liu, Li
name: Kafle, Om
name: Zhang, Feng
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: Additional file 1: Table S1. rSNP functional annotation analysis results of BD GWAS dataset 1.
Exponential Slowdown for Larger Populations: The $(μ+1)$-EA on Monotone Functions
Creators: name: Lengler, Johannes
name: Zou, Xun
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Pseudo-Boolean monotone functions are unimodal functions which are trivial to optimize for some hillclimbers, but are challenging for a surprising number of evolutionary algorithms (EAs). A general trend is that EAs are efficient if parameters like the mutation rate are set conservatively, but may need exponential time otherwise. In particular, it was known that the $(1+1)$-EA and the $(1+λ)$-EA can optimize every monotone function in pseudolinear time if the mutation rate is $c/n$ for some $c<1$, but they need exponential time for some monotone functions for $c>2.2$. The second part of the statement was also known for the $(μ+1)$-EA. In this paper we show that the first statement does not apply to the $(μ+1)$-EA. More precisely, we prove that for every constant $c>0$ there is a constant integer $μ_0$ such that the $(μ+1)$-EA with mutation rate $c/n$ and population size $μ_0\leμ\le n$ needs superpolynomial time to optimize some monotone functions. Thus, increasing the population size by just a constant has devastating effects on the performance. This is in stark contrast to many other benchmark functions on which increasing the population size either increases the performance significantly, or affects performance mildly. The reason why larger populations are harmful lies in the fact that larger populations may temporarily decrease selective pressure on parts of the population. This allows unfavorable mutations to accumulate in single individuals and their descendants. If the population moves sufficiently fast through the search space, such unfavorable descendants can become ancestors of future generations, and the bad mutations are preserved. Remarkably, this effect only occurs if the population renews itself sufficiently fast, which can only happen far away from the optimum. This is counter-intuitive since usually optimization gets harder as we approach the optimum.
Fermi Surface Topology and Magneto-transport Properties of Superconducting Pd$_3$Bi$_2$Se$_2$
Creators: name: Chapai, Ramakanta
name: Peterson, Gordon
name: Smylie, M. P.
name: Chen, Xinglong
name: Jiang, J. S.
name: Graf, David
name: Mitchell, J. F.
name: Welp, Ulrich
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Pd$_3$Bi$_2$Se$_2$ is a rare realization of a superconducting metal with a non-zero $Z_2$ topological invariant. We report the growth of high-quality single crystals of layered Pd$_3$Bi$_2$Se$_2$ with a superconducting transition at $T_c$ ~ 0.80 K and upper critical fields of ~10 mT and ~5 mT for the in-plane and out-of-plane directions, respectively. Our density functional theory (DFT) calculations reveal three pairs of doubly degenerate bands crossing the Fermi level, all displaying clear three-dimensional dispersion consistent with the overall low electronic anisotropy (<2). The multiband electronic nature of Pd$_3$Bi$_2$Se$_2$ is evident in magneto-transport measurements, yielding a sign-changing Hall resistivity at low temperatures. The magnetoresistance is non-saturating and follows Kohler's scaling rule. We interpret the magneto-transport data in terms of open orbits that are revealed in the DFT-calculated Fermi surface. de Haas-van Alphen (dHvA) oscillation measurements using torque magnetometry on single crystals yield four frequencies for out-of-plane fields: $F_α= (150 \pm 26)$T, $F_β= (293 \pm 10)$T, $F_γ= (375 \pm 20)$T, and $F_η= (1017 \pm 12)$T, with the low frequency dominating the spectrum. Through the measurement of angular dependent dHvA oscillations and DFT calculations, we identify the $F_α$ frequency with an approximately ellipsoidal electron pocket centered on the $L_2$ point of the Brillouin zone. Lifshitz-Kosevich analysis of the dHvA oscillations reveals a small cyclotron effective mass: $m^* = (0.11 \pm 0.02) m_0$ and a nontrivial Berry phase for the dominant orbit. The presence of nontrivial topology in a bulk superconductor positions Pd$_3$Bi$_2$Se$_2$ as a potential candidate for exploring topological superconductivity.
description: 30 pages, 5 figures
Additional file 3 of An integrative analysis of genome-wide association study and regulatory SNP annotation datasets identified candidate genes for bipolar disorder
Creators: name: Qi, Xin
name: Wen, Yan
name: Li, Ping
name: Liang, Chujun
name: Cheng, Bolun
name: Ma, Mei
name: Cheng, Shiqiang
name: Zhang, Lu
name: Liu, Li
name: Kafle, Om
name: Zhang, Feng
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: Additional file 3: Table S3. List of the common target genes shared by BD GWAS dataset 1 and dataset 2.
Gnathonarium dentatum
Creators: name: Tanasevitch, Andrei V.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Gnathonarium
Gnathonarium dentatum

description: Gnathonarium dentatum (Wider, 1834)
MATERIAL: 1 Ƌ, Italy, Sardinia, Simaxis, 20.IX.1969, leg. A. Senglet. – 1 ♀, Sicily, Palermo, Cefalu, 8.-9. VI.1974, collector unknown. – 1 ♀, Cyprus, Nicosia, irrigation canal, 10.VII.1977, leg. S. Vit.
REMARKS: This species is here reported for the first time for the Cypriot fauna.
RANGE: Palaearctic.
description: Published as part of Tanasevitch, Andrei V., 2011, On linyphiid spiders (Araneae) from the Eastern and Central Mediterranean kept at the Muséum d'histoire naturelle, Geneva, pp. 49-91 in Revue suisse de Zoologie 118 (1) on page 64, DOI: 10.5962/bhl.part.117799, http://zenodo.org/record/6311696
Poisson Brackets of Normal-Ordered Wilson Loops
Creators: name: Lee, C. -W. H.
name: Rajeev, S. G.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We formulate Yang-Mills theory in terms of the large-N limit, viewed as a classical limit, of gauge-invariant dynamical variables, which are closely related to Wilson loops, via deformation quantization. We obtain a Poisson algebra of these dynamical variables corresponding to normal-ordered quantum (at a finite value of $\hbar$) operators. Comparing with a Poisson algebra one of us introduced in the past for Weyl-ordered quantum operators, we find, using ideas closly related to topological graph theory, that these two Poisson algebras are, roughly speaking, the same. More precisely speaking, there exists an invertible Poisson morphism between them.
description: 34 pages, 4 eps figures, LaTeX2.09; citations added
The use of commercially-produced enzymes or organic amendments to degrade oil in contaminated soils
Creators: name: Yeung, Paul Y.
name: Johnson, Richard L.
Publisher: name: The University of British Columbia
Year: 2009

description: Commercially-produced enzymes were not effective in degrading oil in contaminated soil over a six month incubation period. The incorporation of barley straw (1.0% by weight) led to a 41% decrease in oil content in the heavily contaminated (74 mg/g of oil) Lagoon soil and a 38% reduction in the less contaminated (16 mg/g of oil) Herald soil over the same time. Barley straw added at 2% by weight reduced oil content by 21% in the Lagoon soil and 34% in the Herald soil. Sugar beet pulp incorporated at 2% by weight was nearly as effective as the 10% straw treatment in degrading oil in both the Lagoon and the Herald soils. Soil water repellency was reduced immediately by the enzyme treatment and in two months by the 10% straw amendment. Subsequently, water repellency returned and was particularly severe in the 10% straw treatment.
Vertical Tracer Mixing in Hot Jupiter Atmospheres
Creators: name: Komacek, Thaddeus D.
name: Showman, Adam P.
name: Parmentier, Vivien
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Aerosols appear to be ubiquitous in close-in gas giant atmospheres, and disequilibrium chemistry likely impacts the emergent spectra of these planets. Lofted aerosols and disequilibrium chemistry are caused by vigorous vertical transport in these heavily irradiated atmospheres. Here we numerically and analytically investigate how vertical transport should change over the parameter space of spin-synchronized gas giants. In order to understand how tracer transport depends on planetary parameters, we develop an analytic theory to predict vertical velocities and mixing rates ($K_\mathrm{zz}$) and compare the results to our numerical experiments. We find that both our theory and numerical simulations predict that, if the vertical mixing rate is described by an eddy diffusivity, then this eddy diffusivity $K_\mathrm{zz}$ should increase with increasing equilibrium temperature, decreasing frictional drag strength, and increasing chemical loss timescales. We find that the transition in our numerical simulations between circulation dominated by a superrotating jet and that with solely day-to-night flow causes a marked change in the vertical velocity structure and tracer distribution. The mixing ratio of passive tracers is greatest for intermediate drag strengths that corresponds to this transition between a superrotating jet with columnar vertical velocity structure and day-to-night flow with upwelling on the dayside and downwelling on the nightside. Lastly, we present analytic solutions for $K_\mathrm{zz}$ as a function of planetary effective temperature, chemical loss timescales, and other parameters, for use as input to one-dimensional chemistry models of spin-synchronized gas giant atmospheres.
description: 25 pages, 12 figures, Accepted at ApJ
Gongylidiellum vivum
Creators: name: Tanasevitch, Andrei V.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Gongylidiellum
Gongylidiellum vivum

description: Gongylidiellum vivum (O. P.-Cambridge, 1875)
MATERIAL: 1 ♀, Turkey, Artvin, between Hopa and Kemalpasa, 11 km from Hopa, sifting litter under ferns and blackberry, 10. VI.1986, leg. C. Besuchet, I. Löbl & D. Burckhardt [12a].
REMARKS: This species is here reported for the first time for the Turkish fauna.
RANGE: European.
description: Published as part of Tanasevitch, Andrei V., 2011, On linyphiid spiders (Araneae) from the Eastern and Central Mediterranean kept at the Muséum d'histoire naturelle, Geneva, pp. 49-91 in Revue suisse de Zoologie 118 (1) on page 66, DOI: 10.5962/bhl.part.117799, http://zenodo.org/record/6311696
ZOL-GEL METODIDA TiO2 KOBANT KIRITILGAN NANOMATERIALLAR SINTEZI
Creators: name: Sultonov, K.N.
name: G'oyibnazarov, D.M.
Publisher: name: Zenodo
Year: 2024

description: Turli sanoat tarmoqlarida hosil bo'lgan organic birikmalar oqava suvlarda bir qator muammoli ifloslantiruvchi moddalarni ishlab chiqaradi. TiO2 asosidagi fotokatalizatorlar yangi materiallar bo'lib,ularning ajoyib xususiyatlari, jumladan toksik bo'lmaganligi, yuqori fotokatalitik degradatsiya  qobiliyati va  mukammal termal  va  kimyoviy barqarorliklari tufayli oqava suvdagi organik  birikmalarga  nisbatan  mukammal singdirish xususiyatini ko'rsatadi.
Additional file 2 of Mechanisms of motor symptom improvement by long-term Tai Chi training in Parkinson’s disease patients
Creators: name: Li, Gen
name: Huang, Pei
name: Cui, Shi-Shuang
name: Tan, Yu-Yan
name: He, Ya-Chao
name: Shen, Xin
name: Jiang, Qin-Ying
name: Huang, Ping
name: He, Gui-Ying
name: Li, Bin-Yin
name: Li, Yu-Xin
name: Xu, Jin
name: Wang, Zheng
name: Chen, Sheng-Di
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: Additional file 2: Table S1-S10. Table S1 Clinical assessments of motor symptoms among Tai Chi, Brisk Walking and Control group; Table S2 The association between clinical improvements and the switch rate of brain networks; Table S3 Intergroup comparison of cytokines among Tai Chi group, Brisk Walking group and Control group; Table S4 The association between changes of cytokines and rating scales; Table S5 Intergroup comparison of metabolites among Tai Chi group, Brisk Walking group and Control group; Table S6 Multivariate analysis of metabolomics and rating scale; Table S7 Pathway analysis of metabolites; Table S8 Enrichment analysis of metabolites; Table S9 Associations between Pathway/Enrichment Analysis of Metabolomics and clinical presentations among 3 Groups; Table S10 Associations between HIP2 mRNA level and clinical presentations in Tai Chi group.
Discrete Breathers
Creators: name: Flach, S.
name: Willis, C. R.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Nonlinear classical Hamiltonian lattices exhibit generic solutions in the form of discrete breathers. These solutions are time-periodic and (typically exponentially) localized in space. The lattices exhibit discrete translational symmetry. Discrete breathers are not confined to certain lattice dimensions. Necessary ingredients for their occurence are the existence of upper bounds on the phonon spectrum (of small fluctuations around the groundstate) of the system as well as the nonlinearity in the differential equations. We will present existence proofs, formulate necessary existence conditions, and discuss structural stability of discrete breathers. The following results will be also discussed: the creation of breathers through tangent bifurcation of band edge plane waves; dynamical stability; details of the spatial decay; numerical methods of obtaining breathers; interaction of breathers with phonons and electrons; movability; influence of the lattice dimension on discrete breather properties; quantum lattices - quantum breathers. Finally we will formulate a new conceptual aproach capable of predicting whether discrete breather exist for a given system or not, without actually solving for the breather. We discuss potential applications in lattice dynamics of solids (especially molecular crystals), selective bond excitations in large molecules, dynamical properties of coupled arrays of Josephson junctions, and localization of electromagnetic waves in photonic crystals with nonlinear response.
description: 62 pages, LaTeX, 14 ps figures. Physics Reports, to be published; see also at http://www.mpipks-dresden.mpg.de/~flach/html/preprints.html
Generating Fock-state superpositions from coherent states by selective measurement
Creators: name: Zhang, Chen-yi
name: Jing, Jun
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Fock states and their superpositions are exotic testbeds for nonclassical physics and valuable resources for quantum technologies. We provide a simple protocol for the quantum measurement to generate an arbitrary Fock state and certain superposed Fock states from a coherent state of a target resonator, without any carefully tailored driving. This conditional protocol can be efficiently constructed by a sequence of joint free evolution of the resonator and an ancillary qubit, which are coupled via a Jaynes-Cummings interaction, and projective measurements on the qubit. By properly choosing the duration of each evolution-measurement cycle and the initial state of the resonator, we can generate a desired Fock state $|n\rangle$ and a superposed Fock state $(|0\rangle+|n\rangle)/\sqrt{2}$, $n\sim10$, with a fidelity over $99\%$ in less than $30$ measurements. Moreover, our protocol can be extended straightforwardly to the generation of a Bell-like state $(|00\rangle+|nn\rangle)/\sqrt{2}$ with multiple excitations in a double-resonator system. We also calculate the outcome fidelity and the success probability of our protocol in the presence of decoherence.
description: 13 pages, 14 figures
Maximally nonabelian Toda systems
Creators: name: Razumov, A. V.
name: Saveliev, M. V.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: A detailed consideration of the maximally nonabelian Toda systems based on the classical semisimple Lie groups is given. The explicit expressions for the general solution of the corresponding equations are obtained.
description: 28 pages, LaTeX file. A few references and appendix B are added; this version will appear in Nuclear Physics B
Further Representations of the Canonical Commutation Relations
Creators: name: Florig, Martin
name: Summers, Stephen J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We construct a new class of representations of the canonical commutation relations, which generalizes previously known classes. We perturb the infinitesimal generator of the initial Fock representation (i.e. the free quantum field) by a function of the field which is square-integrable with respect to the associated Gaussian measure. We characterize which such perturbations lead to representations of the canonical commutation relations. We provide conditions entailing the irreducibility of such representations, show explicitly that our class of representations subsumes previously studied classes, and give necessary and sufficient conditions for our representations to be unitarily equivalent, resp. quasi-equivalent, with Fock, coherent or quasifree representations.
Onset of oscillatory instabilities under stochastic modulation
Creators: name: Drolet, Francois
name: Vinals, Jorge
Publisher: name: arXiv
Year: 1997
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the effect of external stochastic modulation on a system with O(2) symmetry that exhibits a Hopf or oscillatory instability in the absence of modulation. The study includes a random component in both the control parameter of the bifurcation and in the modulation amplitude. Stability boundaries are computed by either solving the stationary Fokker-Planck equation in the vicinity of the center manifold of the underlying deterministic system whenever possible, or by direct numerical solution otherwise. If the modulation amplitude has a stochastic component, the primary bifurcation is always to standing waves at a value of the control parameter that depends on the intensity of the fluctuations. More precisely, and to contrast our results with the case of a deterministic periodic forcing, the onset of instability in the standing wave regime is shifted from its deterministic location, and the region of primary bifurcation to traveling waves disappears yielding instead standing waves at negative values of the control parameter.
description: RevTeX, 28 pages, 5 figures (PostScript)
The role of singularities in chaotic spectroscopy
Creators: name: Dahlqvist, Per
Publisher: name: arXiv
Year: 1996
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We review the status of the semiclassical trace formula with emphasis on the particular types of singularities that occur in the Gutzwiller-Voros zeta function for bound chaotic systems. To understand the problem better we extend the discussion to include various classical zeta functions and we contrast properties of axiom-A scattering systems with those of typical bound systems. Singularities in classical zeta functions contain topological and dynamical information, concerning e.g. anomalous diffusion, phase transitions among generalized Lyapunov exponents, power law decay of correlations. Singularities in semiclassical zeta functions are artifacts and enters because one neglects some quantum effects when deriving them, typically by making saddle point approximation when the saddle points are not enough separated. The discussion is exemplified by the Sinai billiard where intermittent orbits associated with neutral orbits induce a branch point in the zeta functions. This singularity is responsible for a diverging diffusion constant in Lorentz gases with unbounded horizon. In the semiclassical case there is interference between neutral orbits and intermittent orbits. The Gutzwiller-Voros zeta function exhibit a branch point because it does not take this effect into account. Another consequence is that individual states, high up in the spectrum, cannot be resolved by Berry-Keating technique.
description: 22 pages LaTeX, figures available from author