cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tensor models and 3-ary algebras
Creators: name: Sasakura, Naoki
Publisher: name: arXiv
Year: 2011
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: Tensor models are the generalization of matrix models, and are studied as models of quantum gravity in general dimensions. In this paper, I discuss the algebraic structure in the fuzzy space interpretation of the tensor models which have a tensor with three indices as its only dynamical variable. The algebraic structure is studied mainly from the perspective of 3-ary algebras. It is shown that the tensor models have algebraic expressions, and that their symmetries are represented by 3-ary algebras. It is also shown that the 3-ary algebras of coordinates, which appear in the nonassociative fuzzy flat spacetimes corresponding to a certain class of configurations with Gaussian functions in the tensor models, form Lie triple systems, and the associated Lie algebras are shown to agree with those of the Snyder's noncommutative spacetimes. The Poincare transformations on the fuzzy flat spacetimes are shown to be generated by 3-ary algebras.
description: 21 pages, no essential changes of contents, but explanations added for clarity
On Feedback Vertex Set: New Measure and New Structures
Creators: name: Cao, Yixin
name: Chen, Jianer
name: Liu, Yang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: G.2.2; F.2.2

description: We present a new parameterized algorithm for the {feedback vertex set} problem ({\sc fvs}) on undirected graphs. We approach the problem by considering a variation of it, the {disjoint feedback vertex set} problem ({\sc disjoint-fvs}), which finds a feedback vertex set of size $k$ that has no overlap with a given feedback vertex set $F$ of the graph $G$. We develop an improved kernelization algorithm for {\sc disjoint-fvs} and show that {\sc disjoint-fvs} can be solved in polynomial time when all vertices in $G \setminus F$ have degrees upper bounded by three. We then propose a new branch-and-search process on {\sc disjoint-fvs}, and introduce a new branch-and-search measure. The process effectively reduces a given graph to a graph on which {\sc disjoint-fvs} becomes polynomial-time solvable, and the new measure more accurately evaluates the efficiency of the process. These algorithmic and combinatorial studies enable us to develop an $O^*(3.83^k)$-time parameterized algorithm for the general {\sc fvs} problem, improving all previous algorithms for the problem.
description: Final version, to appear in Algorithmica
The bilinear-biquadratic spin-1 chain undergoing quadratic Zeeman effect
Creators: name: De Chiara, G.
name: Lewenstein, M.
name: Sanpera, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Heisenberg model for spin-1 bosons in one dimension presents many different quantum phases including the famous topological Haldane phase. Here we study the robustness of such phases in front of a SU(2) symmetry breaking field as well as the emergence of novel phases. Previous studies have analyzed the effect of such uniaxial anysotropy in some restricted relevant points of the phase diagram. Here we extend those studies and present the complete phase diagram of the spin-1 chain with uniaxial anysotropy. To this aim, we employ the density matrix renormalization group (DMRG) together with analytical approaches. The complete phase diagram can be realized using ultracold spinor gases in the Mott insulator regime under a quadratic Zeeman effect.
description: 8 pages, 7 figures; published version; extended discussions, Fig. 1 updated
Economics of Slurry Pipeline Systems
Creators: name: Aude, T.C.
name: Thompson, T.L.
name: Wasp, E.J.
name: Aude, T.C.
name: Thompson, T.L.
name: Wasp, E.J.
Publisher: name: Unknown
Year: 1974
Subjects: Public Economics

description: Presented at the 15th Transportation Research Forum meeting, Oct. 10-12, 1974, San Francisco, CA
On $SU(3)_{F}$ Breaking through Final State Interactions and CP Asymmetries in $D\to P P$ Decays
Creators: name: Buccella, Franco
name: Paul, Ayan
name: Santorelli, Pietro
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2019
Subjects: CP: violation
asymmetry: CP
final-state interaction
branching ratio
pseudoscalar

description: We analyse $D$ decays to two pseudoscalars $(\pi,K)$ assuming the dominant source of $\mathrm{SU}(3)_F$ breaking lies in final state interactions. We obtain an excellent agreement with experimental data and are able to predict CP violation in several channels based on current data on branching ratios and $\Delta \mathrm{A_{CP}}$. We also make predictions for $\delta_{K\pi}$ and the branching fraction for the decay $D_s^+\to K^+K_L$.
Integrative analysis of short- and long-read single-cell RNA-seq to understand transcriptomic landscape changes in Non-obstructive Azoospermia
Creators: name: Ebrahimi, Ghazal
Publisher: name: University of British Columbia
Year: 2023

description: The most severe type of male infertility, known as non-obstructive azoospermia (NOA), is characterized by the absence of sperm in the ejaculate due to spermatogenesis failure. Of all NOA patients, only ~30% are ultimately given a precise diagnosis, leaving the vast majority with no clear explanation for their infertility. Genome/exome-wide studies identified a range of candidate genes responsible for proper sperm formation and testis development. However, bulk sequencing studies have limitations in studying tissue with numerous cell types. Specifically, this is problematic when investigating cellular dysfunction in the testis tissue, whether it be normal control tissue or idiopathic infertility. Alternatively, single-cell RNA sequencing (scRNA-seq) provides gene expression profiles at the level of individual cells and can overcome the limitations of bulk RNA sequencing in this regard. Gene expression data within cells are useful in providing insight into cellular programs and intrinsic biological processes. However, single genes can be comprised of various isoforms that differ in the order and composition of their respective exons, which have significant biological implications in subsequent protein translation and function. Regardless of bulk or single cell, short-read RNA-sequencing technology has limitations in revealing the gene structure, i.e., isoforms. On the other hand, long-read RNA-seq makes it possible to determine the sequence of exons in the transcript isoforms. Recently, new library preparation techniques in single-cell workflows have been developed to take advantage of both long-read RNA sequencing and short-read scRNA-seq libraries. However, computational identification of originating cells of the resultant long-reads using the short-read generated single cell barcodes is not a trivial task because of the relatively high error rate in long-reads. The human testis has been shown to have the highest RNA splicing compared to other tissues. A previous study investigating bulk proteomics of NOA tissue identified RNA splicing machinery as being among the most dysregulated compared to healthy controls. Therefore, we hypothesize that characterizing RNA isoforms on a single cell level will provide critical biologic insights to normal human spermatogenesis as well as pathologic underpinnings of dysregulated spermatogenesis present in NOA.
Coexistence of Superconductivity and Charge Density Wave in SrPt2As2
Creators: name: Kudo, Kazutaka
name: Nishikubo, Yoshihiro
name: Nohara, Minoru
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: SrPt2As2 is a novel arsenide superconductor, which crystallizes in the CaBe2Ge2-type structure as a different polymorphic form of the ThCr2Si2-type structure. SrPt2As2 exhibits a charge-density-wave (CDW) ordering at about 470 K and enters into a superconducting state at Tc = 5.2 K. The coexistence of superconductivity and CDW refers to Peierls instability with a moderately strong electron-phonon interaction. Thus SrPt2As2 can be viewed as a nonmagnetic analog of iron-based superconductors, such as doped BaFe2As2, in which superconductivity emerges in close proximity to spin-density-wave ordering.
description: 4 pages, 5 figures
Reinforcement-Driven Spread of Innovations and Fads
Creators: name: Krapivsky, P. L.
name: Redner, S.
name: Volovik, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We propose kinetic models for the spread of permanent innovations and transient fads by the mechanism of social reinforcement. Each individual can be in one of M+1 states of awareness 0,1,2,...,M, with state M corresponding to adopting an innovation. An individual with awareness k1. The fraction of the population that remains clueless about a transient fad after it has come and gone changes discontinuously as a function of the fad abandonment rate lambda for M>1. The fad dies out completely in a time that varies non-monotonically with lambda.
description: 4 pages, 2 columns, 5 figures, revtex 4-1 format; revised version has been expanded and put into iop format, with one figure added
Euler-Heisenberg lagrangians and asymptotic analysis in 1+1 QED, part 1: Two-loop
Creators: name: Huet, I.
name: McKeon, D. G. C.
name: Schubert, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We continue an effort to obtain information on the QED perturbation series at high loop orders, and particularly on the issue of large cancellations inside gauge invariant classes of graphs, using the example of the l - loop N - photon amplitudes in the limit of large photons numbers and low photon energies. As was previously shown, high-order information on these amplitudes can be obtained from a nonperturbative formula, due to Affleck et al., for the imaginary part of the QED effective lagrangian in a constant field. The procedure uses Borel analysis and leads, under some plausible assumptions, to a number of nontrivial predictions already at the three-loop level. Their direct verification would require a calculation of this `Euler-Heisenberg lagrangian' at three-loops, which seems presently out of reach. Motivated by previous work by Dunne and Krasnansky on Euler-Heisenberg lagrangians in various dimensions, in the present work we initiate a new line of attack on this problem by deriving and proving the analogous predictions in the simpler setting of 1+1 dimensional QED. In the first part of this series, we obtain a generalization of the formula of Affleck et al. to this case, and show that, for both Scalar and Spinor QED, it correctly predicts the leading asymptotic behaviour of the weak field expansion coefficients of the two loop Euler-Heisenberg lagrangians.
description: 28 pages, 1 figures, final published version (minor modifications, refs. added)
Pneumatic Capsule Pipeline
Creators: name: Carstens, M.R.
name: Freeze, B.E.
name: Carstens, M.R.
name: Freeze, B.E.
Publisher: name: Unknown
Year: 1974
Subjects: Public Economics

description: Presented at the 15th Transportation Research Forum meeting, Oct. 10-12, 1974, San Francisco, CA
Charged particle transverse momentum spectra in pp collisions at sqrt(s) = 0.9 and 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The charged particle transverse momentum (pT) spectra are presented for pp collisions at sqrt(s)=0.9 and 7 TeV. The data samples were collected with the CMS detector at the LHC and correspond to integrated luminosities of 231 inverse microbarns and 2.96 inverse picobarns, respectively. Calorimeter-based high-transverse-energy triggers are employed to enhance the statistical reach of the high-pT measurements. The results are compared with both leading-order QCD and with an empirical scaling of measurements at different collision energies using the scaling variable xT = 2 pT/sqrt(s) over the pT range up to 200 GeV/c. Using a combination of xT scaling and direct interpolation at fixed pT, a reference transverse momentum spectrum at sqrt(s)=2.76 TeV is constructed, which can be used for studying high-pT particle suppression in the dense QCD medium produced in heavy-ion collisions at that centre-of-mass energy.
Bringing together Indigenous and Western approaches to brain wellness and mental health : not only the what but the way
Creators: name: Harding, Louise
Publisher: name: University of British Columbia
Year: 2022

description: This thesis explores meanings, priorities, and ethics surrounding brain wellness in an Indigenous health context in three stages: 1) an analysis of gaps in approaches to literature reviews, 2) a scoping review, and 3) a collaborative working group initiative. The design balanced knowledge generation and action (the what) with a focus on process and methods (the way) to bring together Indigenous and Western knowledges. In the process of preparing the search strategy for the scoping review, my gaps study yielded recommendations for mitigating challenges in locating literature about global Indigenous populations. The subsequent scoping review investigated the defining themes of academic research about global Indigenous peoples’ perspectives on the mind and brain. Within the 66 studies analysed, the most prevalent focus was on mental health and illness and the concepts of wellness, spirituality, holism and relationality were defining features. For the collaborative working group initiative, I established a 20-member working group that convened for three meetings with Elder-led sharing circles around the organizing questions: What is the meaning of brain wellness in an Indigenous health context? And, Does it include or is it included in mental health? To support cultural safety and appropriateness, the approach to the working group incorporated aspects of an Indigenous research paradigm alongside Western community engagement practices from neuroethics and patient-oriented research. I prepared a reflective summary of the meeting content that highlighted the need to reaffirm holistic conceptualizations of brain wellness and mental health, integrate Indigenous and Western healing approaches, pursue systems- and community-level changes to overcome the continuing health impacts of racism and colonization, and regain connections with culture and spirit. Outcomes from the group are new partnerships in research and a national research strategy for the brain sciences, a public community conversation, and a publication on methods. This work responds to the Truth and Reconciliation Commission’s 22nd Call to Action “to recognize the value of Aboriginal healing practices” in the context of brain wellness and mental health (Truth and Reconciliation Commission of Canada, 2015). It also contributes to the movement towards a more global, societally relevant, and decolonized future for neuroscience and neuroethics.
The magnetic phase diagram of an extended J1-J2 model on a modulated square lattice and its implications for the antiferromagnetic phase of KyFexSe2
Creators: name: Yu, Rong
name: Goswami, Pallab
name: Si, Qimiao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the experimentally observed $\sqrt{5} \times \sqrt{5}$ iron vacancy order and a block spin antiferromagnetic phase with large magnetic moment in $\mathrm{K}_{0.8}\mathrm{Fe}_{1.6}\mathrm{Se}_2$, we study the magnetic phase diagram of an extended $J_1-J_2$ model on a 1/5-depleted square lattice with $\sqrt{5} \times \sqrt{5}$ vacancy order, using a classical Monte Carlo analysis. The magnetic phase diagram involves various antiferromagnetically ordered phases, and most of them have higher order commensuration. We find that the experimentally relevant block-spin state occupies a significant portion of the phase diagram, and we discuss the spin dynamics of this phase using a linear spin-wave analysis. Based on our spin wave calculations in different parameter regimes corresponding to the block spin antiferromagnetic phase, we show how spin-wave degeneracy along the high symmetry directions of the magnetic Brillouin zone can provide information regarding the underlying exchange couplings. We have also analyzed the magnetic phase diagram of a $J_1-J_2$ model on two different modulated square lattices relevant for $\mathrm{K}_y\mathrm{Fe}_{1.5}\mathrm{Se}_2$, which respectively exhibit 1/4-depleted $2\times2$ and $4\times2$ vacancy ordering.
description: 9 pages, 8 figures, 3 tables
Quantum method of determination of penetrability in FRW model with radiation
Creators: name: Maydanyuk, Sergei P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In paper the closed Friedmann-Robertson-Walker model with quantization in presence of the positive cosmological constant, radiation and Chaplygin gas is studied. For analysis of tunneling probability for birth of an asymptotically deSitter, inflationary Universe as a function of the radiation energy a new definition of a "free" wave propagating inside strong fields is introduced. Vilenkin's tunneling boundary condition is corrected, penetrability and reflection are calculated in fully quantum stationary approach.
description: 6 pages, Talk in the Humboldt-Kolleg "Humboldt Cosmos: Science and Society", HCS2-Kiev2009 (Kiev, Ukraine, 19-22 of November, 2009)
Enhancement of the Argo core mission: Deployment of Bio-Argo and O2-deep floats and improvement of the network capabilities
Creators: name: Obolensky, Grigor
name: Claustre, Herve
name: Thierry, Virginie
name: Körtzinger, Arne
Publisher: name: AtlantOS
Year: 2019

description: 7 Deep floats and 6 Biogeochemical floats purchased and deployed in Atlantic and Southern Ocean
Additional file 2 of Effectiveness of seasonal malaria chemoprevention in three regions of Togo: a population-based longitudinal study from 2013 to 2020
Creators: name: Bakai, Tchaa A.
name: Thomas, Anne
name: Iwaz, Jean
name: Atcha-Oubou, Tinah
name: Tchadjobo, Tchassama
name: Khanafer, Nagham
name: Rabilloud, Muriel
name: Voirin, Nicolas
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 2: Table S1. Participating health facilities in seasonal malaria chemoprevention districts, Togo, 2013–2020.
Intravenous Thrombolysis in Expanded Time Window (3-4.5 hours) in General Practice with Concurrent Availability of Endovascular Treatment
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2023

description: Introduction: A randomized double-blind trial (ECASS III) demonstrated that intravenous (IV) recombinant tissue plasminogen activator (rt-PA) administered between 3 and 4.5 hrs after the onset of symptoms significantly improved clinical outcomes in patients with acute ischemic stroke. In May 2009, the American Stroke Association guidelines recommended the use of IV rt-PA for patients presenting within 3 and 4.5 hrs after symptom onset. Objective: To determine the rate of patients treated with IV rt-PA within the 3- and 4.5-hr time window and associated comparative outcomes in general practice. Methods: We retrospectively reviewed all patients who were treated with IV rt-PA at two comprehensive stroke centers from September 1, 2008 to July 31, 2010 and identified a total of 98 patients. In addition, we identified patients who arrived to the ED of those centers within 2.5 to 4 hrs of symptom onset between January 1, 2007 and June 30, 2010 and received only endovascular treatment. We compared the rates of favorable outcome (determined by using modified Rankin scale 0-2 at discharge and 3-month follow-up), and National Institutes of Health Stroke Scale (NIHSS) score improvement by ≥ 4 points or 0 at discharge among patients treated with IV rt-PA within 3-4.5 hrs with those who received IV rt-PA within 0-3 hrs, and subsequently with patients presenting at similar time window treated only with endovascular treatment. Result: Out of the total 98 IV rt-PA treated patients, 84 of them were treated within 0-3 hrs, and 14 within the 3--4.5 hrs. Twelve patients received endovascular treatment only for the specified time window. Mean admission NIHSS score ± standard deviation (SD) was 11.90 ± 6.72, 8.57 ± 5.40, and 11.75 ± 8.06, for the 0--3, 3--4.5 hrs, and endovascular only treatment groups, respectively. Favorable clinical outcome at discharge (50% vs. 56%, p=0.77), 3 months (64% vs. 64%, p=1.0), and NIHSS score improvement (43% vs. 58%, p=0.38) were not different between those treated within 3-4.5 and 0-3 hrs time windows. There appeared to be a non-significantly higher rate of favorable outcomes at discharge (25% vs. 50%, p=0.24), and at 3 months (42% vs. 64%, p=0.43) among patients treated with IV rt-PA within 3-4.5 hrs compared with those treated with primary endovascular treatment. Conclusion: An additional 14% of patients received IV rt-PA because of treatment window expansion from 3 to 4.5 hrs. Outcomes were comparable to those treated within 3 hrs of symptom onset. The shift of those patients from primary endovascular treatment does not appear to adversely affect patient outcomes.
An Explicit Framework for Interaction Nets
Creators: name: de Falco, Marc
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.1.1

description: Interaction nets are a graphical formalism inspired by Linear Logic proof-nets often used for studying higher order rewriting e.g. \Beta-reduction. Traditional presentations of interaction nets are based on graph theory and rely on elementary properties of graph theory. We give here a more explicit presentation based on notions borrowed from Girard's Geometry of Interaction: interaction nets are presented as partial permutations and a composition of nets, the gluing, is derived from the execution formula. We then define contexts and reduction as the context closure of rules. We prove strong confluence of the reduction within our framework and show how interaction nets can be viewed as the quotient of some generalized proof-nets.
Negative discriminant states in N=4 supersymmetric string theories
Creators: name: Sen, Ashoke
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Single centered BPS black hole solutions exist only when the charge carried by the black hole has positive discriminant. On the other hand the exact dyon spectrum in heterotic string theory compactified on T^6 is known to contain states with negative discriminant. We show that all of these negative discriminant states can be accounted for as two centered black holes. Thus after the contribution to the index from the two centered black holes is subtracted from the total microscopic index, the index for states with negative discriminant vanishes even for finite values of charges, in agreement with the results from the black hole side. Bound state metamorphosis -- which requires us to identify certain apparently different two centered configurations according to a specific set of rules -- plays a crucial role in this analysis. We also generalize these results to a class of CHL string theories.
description: LaTeX file, 32 pages; v2: reference added; v3: added new section 3.3
Supernova light-curve fitters and Dark Energy
Creators: name: Bengochea, Gabriel R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that when a procedure is made to remove the tension between a supernova Ia (SN Ia) data set and observations from BAO and CMB, there might be the case where the same SN Ia set built with two different light-curve fitters behaves as two separate and distinct supernova sets, and the tension found by some authors between supernova sets actually could be due to tension or inconsistency between fitters. We also show that the information of the fitter used in an SN Ia data set could be relevant to determine whether phantom type models are favored or not when such a set is combined with the BAO/CMB joint parameter.
description: 8 pages, 7 figures and 2 tables. Improved version. Accepted in Phys. Lett. B
Sard's theorem for mappings between Fréchet manifolds
Creators: name: Eftekharinasab, Kaveh
Publisher: name: arXiv
Year: 2010
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: In this paper we prove an infinite-dimensional version of Sard's theorem for Fréchet manifolds. Let $ M $ and $ N $ be bounded Fréchet manifolds such that the topologies of their model Fréchet spaces are defined by metrics with absolutely convex balls. Let $ f: M \rightarrow N $ be an $ MC^k$-Lipschitz-Fredholm map with $ k > \max \lbrace {\Ind f,0} \rbrace $. Then the set of regular values of $ f $ is residual in $ N $.
Recruitment of Ischemic Stroke Patients in Clinical trials in General Practice and Implications for Generalizability of Results
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2023

description: Background: While results of clinical trials are used to impact practice among patients with ischemic stroke, very little information is available regarding proportion and characteristics of patients recruited in clinical trials in general practice. Methods: We performed this analysis to provide an audit of recruitment in clinical trials among patients with acute ischemic stroke using data from the University Healthsystems Consortium benchmarking project. A review of 40 consecutive ischemic stroke cases meeting inclusion criteria and discharge within a 6-month period was conducted in 32 hospitals. Results: A total of 1256 patients (mean age 67 years, range 18--99 years) were included. A total of 77 (6%) patients were recruited in clinical trials; 33 and 14 patients recruited in drug or device trials, respectively. In the multivariate analysis, age under 80 years (odd ratio [OR] 2.2, 95% confidence interval [CI] 1.0--4.9), white or African-American race as compared with others (OR 2.5, 95% CI 0.98--6.6), evaluation by a neurologist or stroke team (OR 14.8, 95% CI 2.0--108), the use of intravenous thrombolysis (OR 8.4, 95% CI 4.9--14.4), and history of hypertension (OR 1.9, 95% CI 1.0--3.4) were associated with recruitment in clinical trials. There was no relationship between patient's gender and recruitment in clinical trials. The rate of intracranial hemorrhage (6% vs 2%, p<0.05) and progression of stroke (12% vs 3%, p<0.05) were higher among those recruited in clinical trials. Conclusions: Patients recruited in clinical trials appear to have different characteristics from those who are not recruited limiting the generalizability of results from current trials.
Additional file 1 of Effectiveness of seasonal malaria chemoprevention in three regions of Togo: a population-based longitudinal study from 2013 to 2020
Creators: name: Bakai, Tchaa A.
name: Thomas, Anne
name: Iwaz, Jean
name: Atcha-Oubou, Tinah
name: Tchadjobo, Tchassama
name: Khanafer, Nagham
name: Rabilloud, Muriel
name: Voirin, Nicolas
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 1: Figure S1. Heterogeneity of yearly and cycle seasonal malaria chemoprevention effects in the districts of Togo from 2016 to 2020. Deviation of each district from the average is represented for yearly and cycle effects. Districts below line 0 (Blitta, Oti, Sotouboua, Tchamba, and Tchaoudjo) showed better effectiveness of seasonal malaria chemoprevention than the average and districts above line 0 (Binah, Cinkasse, Dankpen, Kozah and Kpendjal) showed lower effectiveness.
A note on sections of broken Lefschetz fibrations
Creators: name: Hayano, Kenta
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50, 57R65

description: We show that there exists a non-trivial simplified broken Lefschetz fibration which has infinitely many homotopy classes of sections. We also construct a non-trivial simplified broken Lefschetz fibration which has a section with non-negative square. It is known that no Lefschetz fibration satisfies either of the above conditions. Smith proved that every Lefschetz fibration has only finitely many homotopy classes of sections, and Smith and Stipsicz independently proved that a Lefschetz fibration is trivial if it has a section with non-negative square. So our results indicate that there are no generalizations of the above results to broken Lefschetz fibrations. We also give a necessary and sufficient condition for the total space of a simplified broken Lefschetz fibration with a section admitting a spin structure, which is a generalization of Stipsicz's result on Lefschetz fibrations.
description: 15 pages, 10 figures. We correct the proofs of Theorem 1.2 and Theorem 1.4 and the argument in Example 5.4. We also modify minor errors
Additional file 6 of Effectiveness of seasonal malaria chemoprevention in three regions of Togo: a population-based longitudinal study from 2013 to 2020
Creators: name: Bakai, Tchaa A.
name: Thomas, Anne
name: Iwaz, Jean
name: Atcha-Oubou, Tinah
name: Tchadjobo, Tchassama
name: Khanafer, Nagham
name: Rabilloud, Muriel
name: Voirin, Nicolas
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 6: Table S5. Number of malaria cases in seasonal malaria chemoprevention zones, Togo, 2013–2020.
Violation of Casimir Scaling for Static QCD Potential at Three-loop Order
Creators: name: Anzai, C.
name: Kiyo, Y.
name: Sumino, Y.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the full ${\cal O}(α_s^4)$ and ${\cal O}(α_s^4\logα_s)$ corrections to the potential $V_R(r)$ between the static color sources, where $V_R(r)$ is defined from the Wilson loop in a general representation $R$ of a general gauge group $G$. We find a violation of the Casimir scaling of the potential, for the first time, at ${\cal O}(α_s^4)$. The effect of the Casimir scaling violation is predicted to reduce the tangent of $V_R(r)/C_R$ proportionally to specific color factors dependent on $R$. We study the sizes of the Casimir scaling violation for various $R$'s in the case $G=SU(3)$. We find that they are well within the present bounds from lattice calculations, in the distance region where both perturbative and lattice computations of $V_R(r)$ are valid. We also discuss how to test the Casimir scaling violating effect.
description: 20 pages, 7 figures, v2: a typo in eq.(13) corrected
Additional file 4 of Effectiveness of seasonal malaria chemoprevention in three regions of Togo: a population-based longitudinal study from 2013 to 2020
Creators: name: Bakai, Tchaa A.
name: Thomas, Anne
name: Iwaz, Jean
name: Atcha-Oubou, Tinah
name: Tchadjobo, Tchassama
name: Khanafer, Nagham
name: Rabilloud, Muriel
name: Voirin, Nicolas
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 4: Table S3. Reasons for not administering seasonal malaria chemoprevention per district, Togo, 2013–2020.
Large group delay in a microwave metamaterial analogue of electromagnetically induced transparency
Creators: name: Zhang, Lei
name: Tassin, Philippe
name: Koschny, Thomas
name: Kurter, Cihan
name: Anlage, Steven M.
name: Soukoulis, C. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on our experimental work concerning a planar metamaterial exhibiting classical electromagnetically induced transparency (EIT). Using a structure with two mirrored split-ring resonators as the dark element and a cut wire as the radiative element, we demonstrate that an EIT-like resonance can be achieved without breaking the symmetry of the structure. The mirror symmetry of the metamaterial's structural element results in a selection rule inhibiting magnetic dipole radiation for the dark element, and the increased quality factor leads to low absorption (<10%) and large group index (of the order of 30).
description: 4 pages, 5 figures
Early pain/stress and math skills in relation to fMRI during visuospatial processing at age 8 years in children born very preterm
Creators: name: Phillips, Hannah Cameron
Publisher: name: University of British Columbia
Year: 2022

description: Children born very preterm exhibit neurodevelopmental problems, compared to term-born peers. Math underperformance is particularly evident and is associated with poorer visuospatial skills. Neonatal exposure to repeated invasive procedures during neonatal intensive care unit (NICU) stay that induce pain and stress has been identified as one contributing factor to poorer cognitive performance, but relationships with mathematics achievement have not been studied. Partial least squares correlation (PLSC) analyses were performed to investigate whether: 1. Neonatal pain-related stress and clinical factors are related to math skills at age 8 years, and whether: a) maternal education, b) white matter injury, and c) child sex, contribute to the relationship. 2. Neonatal pain-related stress and clinical factors are related to functional network activation during visuospatial processing. 3. Functional network activation during visuospatial processing is related to math skills. In an ongoing prospective longitudinal cohort study, N=118 (63 male) children born very preterm at 8 years underwent neuropsychological and math skills assessment, and N=75 children also completed a visuospatial mental rotation of hands task. Prospective daily clinical chart review conducted across the NICU stay recorded pain/stress (number of invasive procedures) and clinical factors. No child with major brain injury and/or severe motor, sensory, or cognitive impairments was included. I found that: 1. Greater pain/stress exposure was related to poorer math skills, along with morphine, gestational age, ventilation, and infection (τ=80%, p<.001). None of maternal education, white matter injury, or child sex contributed to the relationship. 2. Greater neonatal pain/stress, morphine, ventilation, SNAP-II, infection, and lower gestational age were then related to increased brain network activation that included the right superior parietal, right lateral occipital, and left inferior temporal cortices (τ=65%, p<.001). 3. Poorer scores in all math domains were related to increased activation including in the superior parietal and lateral occipital cortices bilaterally and with concomitant decreased activation that included the right inferior parietal cortex (τ=93%, p<.001). Overall this study suggests a link via visuospatial processing between math and pain/stress and supports the importance of visuospatial abilities in relation to math performance for children born very preterm.
Additional file 6: of Comparative transcriptome analysis of the invasive weed Mikania micrantha with its native congeners provides insights into genetic basis underlying successful invasion
Creators: name: Guo, Wuxia
name: Liu, Ying
name: Ng, Wei
name: Liao, Pei-Chun
name: Huang, Bing-Hong
name: Li, Weixi
name: Li, Chunmei
name: Shi, Xianggang
name: Huang, Yelin
Publisher: name: figshare
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Sequence comparison of M. micrantha, M. cordata, and M. cordifolia ortholog pairs. (PDF 35Â kb)
Classical and quantum mechanics of the nonrelativistic Snyder model
Creators: name: Mignemi, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Snyder model is an example of noncommutative spacetime admitting a fundamental length scale $β$ and invariant under Lorentz transformations, that can be interpreted as a realization of the doubly special relativity axioms. Here, we consider its nonrelativistic counterpart, i.e. the Snyder model restricted to three-dimensional Euclidean space. We discuss the classical and the quantum mechanics of a free particle in this framework, and show that they strongly depend on the sign of a coupling constant $λ$, appearing in the fundamental commutators and proportional to $β^2$. For example, if $λ$ is negative, momenta are bounded. On the contrary, for positive $λ$, positions and areas are quantized. We also give the exact solution of the harmonic oscillator equations both in the classical and the quantum case, and show that its frequency is energy dependent.
description: 21 pages, 5 figures, plain TeX. Some points have been simplified. Version published on PRD
The density variance -- Mach number relation in supersonic, isothermal turbulence
Creators: name: Price, Daniel J.
name: Federrath, Christoph
name: Brunt, Christopher M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine the relation between the density variance and the mean-square Mach number in supersonic, isothermal turbulence, assumed in several recent analytic models of the star formation process. From a series of calculations of supersonic, hydrodynamic turbulence driven using purely solenoidal Fourier modes, we find that the `standard' relationship between the variance in the log of density and the Mach number squared, i.e., sigma^2_(ln rho/rhobar)=ln (1+b^2 M^2), with b = 1/3 is a good fit to the numerical results in the supersonic regime up to at least Mach 20, similar to previous determinations at lower Mach numbers. While direct measurements of the variance in linear density are found to be severely underestimated by finite resolution effects, it is possible to infer the linear density variance via the assumption of log-normality in the Probability Distribution Function. The inferred relationship with Mach number, consistent with sigma_(rho/rhobar) ~ b M with b=1/3, is, however, significantly shallower than observational determinations of the relationship in the Taurus Molecular Cloud and IC5146 (both consistent with b~ 0.5), implying that additional physics such as gravity is important in these clouds and/or that turbulent driving in the ISM contains a significant compressive component. Magnetic fields are not found to change this picture significantly, in general reducing the measured variances and thus worsening the discrepancy with observations.
description: 5 pages, 4 figures, emulateapj. v2: accepted to ApJL, minor changes only
DIDACTIC SYSTEM FOR DEVELOPING PEDAGOGICAL SKILLS IN STUDENTS
Creators: name: Akhmedova, H.O.
Publisher: name: Zenodo
Year: 2023

description: In this article, the successful solution of complex issues, such as educating the younger generation in the future as a harmonious person, independent thinker, depends in many ways on the ideological beliefs, professional skills, knowledge, culture of the teacher. A modern educator needs to know how to influence the student, shaping his or her desires, beliefs, interests, and abilities. This means that a modern school needs a highly educated, active researcher, teacher-educator.
The National Transportation Study: Its Use At The Federal Government Level
Creators: name: Swerdloff, Carl N.
name: Mongini, Arrigo
name: Swerdloff, Carl N.
name: Mongini, Arrigo
Publisher: name: Unknown
Year: 1974
Subjects: Public Economics

description: Presented at the 15th Transportation Research Forum meeting, Oct. 10-12, 1974, San Francisco, CA
On Optimal Harvesting Problems in Random Environments
Creators: name: Song, Qingshuo
name: Stockbridge, Richard
name: Zhu, Chao
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: This paper investigates the optimal harvesting strategy for a single species living in random environments whose growth is given by a regime-switching diffusion. Harvesting acts as a (stochastic) control on the size of the population. The objective is to find a harvesting strategy which maximizes the expected total discounted income from harvesting {\em up to the time of extinction} of the species; the income rate is allowed to be state- and environment-dependent. This is a singular stochastic control problem with both the extinction time and the optimal harvesting policy depending on the initial condition. One aspect of receiving payments up to the random time of extinction is that small changes in the initial population size may significantly alter the extinction time when using the same harvesting policy. Consequently, one no longer obtains continuity of the value function using standard arguments for either regular or singular control problems having a fixed time horizon. This paper introduces a new sufficient condition under which the continuity of the value function for the regime-switching model is established. Further, it is shown that the value function is a viscosity solution of a coupled system of quasi-variational inequalities. The paper also establishes a verification theorem and, based on this theorem, an $\varepsilon$-optimal harvesting strategy is constructed under certain conditions on the model. Two examples are analyzed in detail.
description: Keywords: Regime-switching diffusion, singular stochastic control, quasi variational inequality, viscosity solution, verification theorem
Актуальные вопросы современной экономики,Выпуск 9 2023
Creators: name: ООО "Институт развития образования и консалтинга"
Publisher: name: ООО "Институт развития образования и консалтинга"
Year: 2023

description: Актуальные вопросы современной экономики,Выпуск 9 2023
ЦИФРОВИЗАЦИЯ И ЦИФРОВЫЕ ТЕХНОЛОГИИ В ОБРАЗОВАНИИ
Creators: name: Мухтаров, Фаррух
Publisher: name: Zenodo
Year: 2023

description: В статье изложены актуальные проблемы цифровизации образования. Проанализированы этапы цифровизации и появление новых цифровых технологий, которые представляют собой огромный педагогический потенциал. Также рассмотрены возможности цифровых технологий в образовательном процессе вуза. Дана характеристика цифровой образовательной среды. Уточнен понятийный аппарат: «цифровая грамотность», «цифровая образовательная среда».
Synthesis and characterisation of platinum(II) methyl complexes and their reactivity towards carbon-hydrogen (C-H) and carbon-halogen bonds (C-X)
Creators: name: Altus, Kristof
Publisher: name: University of British Columbia
Year: 2022

description: Within this thesis, the syntheses of novel Pt⁽ᴵᴵ⁾ complexes that show reactivity towards carbon-hydrogen and carbon-halogen bonds is explored. Understanding the nuances of fundamental reactivity is important for catalyst design. These nuances allow for the development of novel systems capable of tackling challenging reactions such as alkane activation and functionalisation. Chapter 1 gives an overview of the current understanding of the mechanisms for C-H activation of alkanes and how the communities understanding has changed over the last 20 years. In chapter 2 the intermolecular oxidative addition of aryl halides to Pt⁽ᴵᴵ⁾ complexes is presented. The work in chapter 2 forms part of a proposed catalytic cycle for methane functionalisation, using aryl halides as oxidants. The oxidative addition of aryl halides to Pt⁽ᴵᴵ⁾ complexes has so far only been reported for aryl halides that are tethered to the ligand backbone. The work in chapter 2 therefore constitutes a significant advance in the reactivity of aryl halide chemistry with platinum. Novel ligand design and synthesis of new platinum complexes targeted towards small molecule activation is presented in chapter 3. The new ligands provide an entry into the synthesis of (hetero)bimetallic complexes that could show activity in cascade or tandem reactions. The use of bimetallic complexes is important for tailoring the reactivity of two catalysts simultaneously in the same molecule allowing for a higher degree of control over a reaction or multiple reactions in the same flask. The C-H activation of pyridine via the formation of Pt-Pt bonded bimetallic species is shown in chapter 4. Furthermore, a detailed computational and experimental study into the donor-acceptor nature of the Pt-Pt bond shows how bimetallic complexes of platinum could be used in challenging C-H activation reactions. Chapter 5 provides a summary of the work in this thesis and gives new avenues for the continued development of new platinum compounds for small molecule activation reactions.
CP measurement in $\mathrm{H \to \tau \tau}$
Creators: name: Cardini, Andrea
name: Gallo-Voss, Elisabetta
name: Lenz, Teresa
name: Meyer, Mareike
name: Raspereza, Alexei
name: Klundert, Merijn Van De
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2019

description: Frühjahrstagung der Deutschen Physikalischen Gesellschaft 2019, DPG2019, Aachen, Germany, 25 Mar 2019 - 29 Mar 2019
description: The Standard Model (SM) predicts the existence of a CP-even Higgs boson. Measuring the CP quantum number of the Higgs boson is therefore useful to confirm the prediction of the SM and search for evidences pointing to new physics. The study of bosonic decays of the Higgs boson has already excluded a CP-odd Higgs, however that analysis is not sensitive to the possibility of a mixing angle between a CP-even and a CP-odd state. The H in tautau decay at tree level is sensitive to the CP parity of the Higgs boson and offers a possible measurement of the CP mixing angle. The decay planes of the two tau leptons are reconstructed using the decay products in the mu tauh channel and the angle between them is used to estimate the CP mixing angle. The 2017 data collected by the CMS experiment in proton-proton collisions at the LHC are used to estimate the sensitivity of the CP measurement.