cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
การประยุกต์ใช้หลักภาวนา 4 ในการพัฒนาศักยภาพของผู้สูงอายุภายในเขตเทศบาลเมืองพิชัย ตำบลพิชัย อำเภอเมือง จังหวัดลำปาง
Creators: name: วรสิทธิสิน หงส์ทอง
Publisher: name: มหาวิทยาลัยมหาจุฬาลงกรณราชวิทยาลัย วิทยาเขตนครสวรรค์
Year: 2023
Subjects: การพัฒนาศักยภาพ
ผู้สูงอายุ
ภาวนา 4

description: The Journal of Research and Academics, 6, 2, 155-168
Excited-Eigenstate Entanglement Properties of XX Spin Chains with Random Long-Range Interactions
Creators: name: Mohdeb, Youcef
name: Vahedi, Javad
name: Kettemann, Stefan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Quantum information theoretical measures are useful tools for characterizing quantum dynamical phases. However, employing them to study excited states of random spin systems is a challenging problem. Here, we report results for the entanglement entropy (EE) scaling of excited eigenstates of random XX antiferromagnetic spin chains with long-range (LR) interactions decaying as a power law with distance with exponent $α$. To this end, we extend the real-space renormalization group technique for excited states (RSRG-X) to solve this problem with LR interaction. For comparison, we perform numerical exact diagonalization (ED) calculations. From the distribution of energy level spacings, as obtained by ED for up to $N\sim 18$ spins, we find indications of a delocalization transition at $α_c \approx 1$ in the middle of the energy spectrum. With RSRG-X and ED, we show that for $α>α^*$ the entanglement entropy (EE) of excited eigenstates retains a logarithmic divergence similar to the one observed for the ground state of the same model, while for $α<α^*$ EE displays an algebraic growth with the subsystem size $l$, $S_l\sim l^β$, with $0<β<1$. We find that $α^* \approx 1$ coincides with the delocalization transition $α_c$ in the middle of the many-body spectrum. An interpretation of these results based on the structure of the RG rules is proposed, which is due to {\it rainbow} proliferation for very long-range interactions $α\ll 1$. We also investigate the effective temperature dependence of the EE allowing us to study the half-chain entanglement entropy of eigenstates at different energy densities, where we find that the crossover in EE occurs at $α^* < 1$.
description: 11 pages, 13 figures
Highly Efficient Processing Multi-photon States
Creators: name: Lin, Qing
name: He, Bing
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: How to implement multi-qubit gates is an important problem in quantum information processing. Based on cross phase modulation, we present an approach to realizing a family of multi-qubit gates that deterministically operate on single photons as the qubits. A general $n$-qubit unitary operation is a typical example of these gates. The approach greatly relax the requirement on the resources, such as the ancilla photons and coherent beams, as well as the number of operations on the qubits. The improvement in this framework may facilitate large scale quantum information processing.
description: to be published in Scientific Reports. 14 pages, 5 figures (plus 5 pages and 2 figures in supplementary materials)
การจัดการเรียนรู้แนวจิตปัญญาศึกษาเพื่อพัฒนาผลสัมฤทธิ์ทางการเรียนของนักศึกษาสาขาวิชาสังคมศึกษาชั้นปีที่ 4 คณะครุศาสตร์ มหาวิทยาลัยราชภัฏนครสวรรค์
Creators: name: ทองแดง สุกเหลือง
Publisher: name: มหาวิทยาลัยมหาจุฬาลงกรณราชวิทยาลัย วิทยาเขตนครสวรรค์
Year: 2023
Subjects: การจัดการเรียนรู้
จิตปัญญาศึกษา
ผลสัมฤทธิ์ทางการเรียน

description: The Journal of Research and Academics, 6, 2, 169-182
High-performance, additively-manufactured atomic spectroscopy apparatus for portable quantum technologies
Creators: name: Madkhaly, Somya H
name: Cooper, Nathan
name: Coles, Laurence
name: Hackermüller, Lucia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a miniaturised and highly robust system for performing Doppler-free spectroscopy on thermal atomic vapour for three frequencies as required for cold atom-based quantum technologies. The application of additive manufacturing techniques, together with efficient use of optical components, produce a compact, stable optical system, with a volume of 0.089 L and a weight of 120 g. The device occupies less than a tenth of the volume of, and is considerably lower cost than, conventional spectroscopic systems, but also offers excellent stability against environmental disturbances. We characterise the response of the system to changes in environmental temperature between 10 and 30$^{\circ}$C and exposure to vibrations between 0 - 2000 Hz, finding that the system can reliably perform spectroscopic measurements despite substantial vibrational noise and temperature changes. Our results show that 3D-printed optical systems are an excellent solution for portable quantum technologies.
Intervals of permutation class growth rates
Creators: name: Bevan, David
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05, 05A16

description: We prove that the set of growth rates of permutation classes includes an infinite sequence of intervals whose infimum is $θ_B\approx2.35526$, and that it also contains every value at least $λ_B\approx2.35698$. These results improve on a theorem of Vatter, who determined that there are permutation classes of every growth rate at least $λ_A\approx2.48187$. Thus, we also refute his conjecture that the set of growth rates below $λ_A$ is nowhere dense. Our proof is based upon an analysis of expansions of real numbers in non-integer bases, the study of which was initiated by Rényi in the 1950s. In particular, we prove two generalisations of a result of Pedicini concerning expansions in which the digits are drawn from sets of allowed values.
description: 20 pages, 10 figures, ancillary files containing computer-aided calculations included
Supplemental Material for Shropshire, Rosenberg, and Bordenstein, 2020
Creators: name: Shropshire, J. Dylan
name: Rosenberg, Rachel
name: Bordenstein, Seth R.
Publisher: name: GSA Journals
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: 60503 Microbial Genetics

description: Wolbachia endosymbionts in arthropods often cause cytoplasmic incompatibility (CI) that results in embryonic death when infected males mate with uninfected females or females harboring different Wolbachia strains. Here, we use Drosophila transgenics and a variety of CI gene (cifA and cifB) homologs to test if sequence variation causes phenotypic variation in the strength of CI and incompatibilities between strains. We report that cif homologs cause weak and rescuable CI, closely related cifA homologs are often interchangeable and compatible, cifB sequence variation associates with CI levels, and divergent homologs can exhibit unidirectional CI against each other.
Re-entrant magic-angle phenomena in twisted bilayer graphene in integer magnetic fluxes
Creators: name: Guan, Yifei
name: Yazyev, Oleg V.
name: Kruchkov, Alexander
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this work we address the re-entrance of magic-angle phenomena (band flatness and quantum-geometric transport) in twisted bilayer graphene (TBG) subjected to strong magnetic fluxes $\pm Φ_0$, $\pm 2 Φ_0$, $\pm 3 Φ_0$... ($Φ_0 = h/e$ is the flux quantum per moiré cell). The moiré translation invariance is restored at the integer fluxes, for which we calculate the TBG band structure using accurate atomistic models with lattice relaxations. Similarly to the zero-flux physics outside the magic angle condition, the reported effect breaks down rapidly with the twist. We conclude that the magic-angle physics re-emerges in high magnetic fields, witnessed by the appearance of flat electronic bands distinct from Landau levels, and manifesting non-trivial quantum geometry. We further discuss the possible flat-band quantum geometric contribution to the superfluid weight in strong magnetic fields (28 T at 1.08$^\circ$ twist), according to Peotta-Törmä mechanism.
description: 5 pages, 5 figures
Chapter 5. Supplementary material. Linking the functional traits of Australian Acacia species to their geographic distribution and invasion status
Creators: name: Martín-Forés, Irene
name: Andrew, Samuel C.
name: Guerin, Greg R.
name: Gallagher, Rachael V.
Publisher: name: Zenodo
Year: 2023

description: This is online supplementary material for the Chapter "Linking the functional traits of Australian Acacia species to their geographic distribution and invasion status" authored by I. Martín-Forés et al., corresponding to Chapter 5 In: "Wattles: Australian Acacia species around the world". Eds: D.M. Richardson, J.J. Le Roux, and E. Marchante (CABI, UK, 2023).
The criterion of supernova explosion revisited: the mass accretion history
Creators: name: Suwa, Yudai
name: Yamada, Shoichi
name: Takiwaki, Tomoya
name: Kotake, Kei
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: By performing neutrino-radiation hydrodynamic simulations in spherical symmetry (1D) and axial symmetry (2D) with different progenitor models by Woosley & Heger (2007) from 12 $M_{\odot}$ to 100 $M_{\odot}$, we find that all 1D runs fail to produce an explosion and several 2D runs succeed. The difference in the shock evolutions for different progenitors can be interpreted by the difference in their mass accretion histories, which are in turn determined by the density structures of progenitors. The mass accretion history has two phases in the majority of the models: the earlier phase in which the mass accretion rate is high and rapidly decreasing and the later phase with a low and almost constant accretion rate. They are separated by the so-called turning point, the origin of which is a change of the accreting layer. We argue that shock revival will most likely occur around the turning point and hence that its location in the $\dot M$-$L_ν$ plane will be a good measure for the possibility of shock revival: if the turning point lies above the critical curve and the system stays there for a long time, shock revival will obtain. In addition, we develop a phenomenological model to approximately evaluate the trajectories in the $\dot M$-$L_ν$ plane, which, after calibrating free parameters by a small number of 1D simulations, reproduces the location of the turning point reasonably well by using the initial density structure of progenitor alone. We suggest the application of the phenomenological model to a large collection of progenitors in order to infer without simulations which ones are more likely to explode.
description: 17 pages, 24 figures, 2 tables; accepted for publication in ApJ
Timelike geodesics around a charged spherically symmetric dilaton black hole
Creators: name: Blaga, Cristina
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we study the timelike geodesics around a spherically symmetric charged dilaton black hole. The trajectories around the black hole are classified using the effective potential of a free test particle. This qualitative approach enables us to determine the type of the orbit described by the test particle without solving the equations of motion, if the parameters of the black hole and the particle are known. The connections between these parameters and the type of orbit described by the particle are obtained. To visualize the orbits we solve numerically the equation of motions for different values of the parameters envolved in our analysis. The effective potential of a free test particle looks different for a non-extremal and an extremal black hole, therefore we have examined separately these two types of black holes.
description: 10 pages, 16 figures
Dynamical generation of hadronic resonances
Creators: name: Wolkanowski, Thomas
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: One type of dynamical generation consists in the formation of multiple hadronic resonances from single seed states by incorporating hadronic loop contributions on the level of $s$-wave propagators. Along this line, we study the propagator poles within two models of scalar resonances and report on the status of our work: (i) Using a simple quantum field theory describing the decay of $f_{0}(500)$ into two pions, we may obtain a second, additional pole on the first Riemann sheet below the pion-pion threshold (i.e., a stable state can emerge). (ii) We perform a numerical study of the pole(s) of $a_{0}(1450)$ by using as an input the results obtained in the extended Linear Sigma Model (eLSM). Here, we do not find any additional pole besides the original one, thus we cannot obtain $a_{0}(980)$ as an emerging state. (iii) We finally demonstrate that, although the coupling constants in typical effective models might be large, the next-to-leading-order contribution to the decay amplitude is usually small and can be neglected.
description: 6 pages, 1 figure, 1 table, prepared for proceedings of the workshop "EEF70 - Workshop on Unquenched Hadron Spectroscopy: Non-Perturbative Models and Methods of QCD vs. Experiment", Coimbra, Portugal, September 1-5, 2014
Optical knots and contact geometry II.From Ranada dyons to transverse and cosmetic knots
Creators: name: Kholodenko, Arkady L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Some time ago Ranada (1989) obtained new nontrivial solutions of the Maxwellian gauge fields without sources. These were reinterpreted in Kholodenko (2015a) (part I) as particle-like (monopoles, dyons, etc.). They were obtained by the method of Abelian reduction of the non-Abelian Yang-Mills functional. The developed method uses instanton-type calculations normally employed for the non-Abelian gauge fields. By invoking the electric-magnetic duality it then becomes possible to replace all known charges/masses by the particle -like solutions of the source-free Abelian gauge fields. To employ these results in high energy physics, it is essential to to extend Ranada's results by carefully analysing and classifying all dynamically generated knoted/linked structures in gauge fields, including those discovered by Ranada. This task is completed in this work. The study is facilitated by the recent progress made in solving the Moffatt conjecture. Its essence is stated as follows: in steady incompressible Euler-type fluids the streamlines could have knots/links of all types. By employing the correspondence between the ideal hydrodynamics and electrodynamics discussed in part I and by superimposing it with the already mentioned method of Abelian reduction, it is demonstrated that in the absence of boundaries only the iterated torus knots and links could be dynamically generated. Obtained results allow to develop further particle-knot/link correspondence studied in Kholodenko (2015b)
description: 67 pages, 17 figures
Impact of probiotic Lactobacillus sp. on autochthonous lactobacilli in weaned piglets
Creators: Zhao, Xin
Wang, Weilan
Blaine, Alysson
Kane, Sarah T.
Zijlstra, Ruurd T.
Gänzle, Michael G.
Publisher: name: University of Alberta Library
Year: 2019

Aims: This study aimed to determine whether host-adapted lactobacilli exhibit superior survival during intestinal transit relative to nomadic and free-living organisms, and to characterize the impact of probiotic lactobacilli on autochthonous lactobacilli. Methods and Results: Mixed cultures of Lactobacillus casei K9-1 and Lactobacillus fermentum K9-2, or reutericyclin producing Lactobacillus reuteri and its isogenic mutant were fed to piglets as freeze-dried culture, or as part of fermented feed. Lactobacilli in digesta and faecal samples were quantified by strain-specific quantitative PCR (qPCR), high-resolution-melting curve qPCR, and high-throughput sequencing of 16S rRNA gene sequence tags. The abundance of the host adapted L. reuteri in digesta and faeces was higher (P < 0·05) when compared to L. casei or L. fermentum. Feed fermentation or chemical acidification of feed reduced (P < 0·05) cell counts of Lactobacillus salivarius in colonic digesta. The reutericyclin producing L. reuteri TMW1.656 transiently reduced (P < 0·05) the faecal abundance of lactobacilli. However, the overall impact of probiotic intervention on autochthonous lactobacilli was minor. Conclusions: The vertebrate host-adapted L. reuteri survives better during intestinal transit of piglets compared to L. casei and L. fermentum. Significance and Impact of the Study: Ecology and lifestyle of Lactobacillus strains may be suitable criteria for selection of probiotic strains for use in swine production.
Deep Dynamic Effective Connectivity Estimation from Multivariate Time Series
Creators: name: Mahmood, Usman
name: Fu, Zening
name: Calhoun, Vince
name: Plis, Sergey
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Recently, methods that represent data as a graph, such as graph neural networks (GNNs) have been successfully used to learn data representations and structures to solve classification and link prediction problems. The applications of such methods are vast and diverse, but most of the current work relies on the assumption of a static graph. This assumption does not hold for many highly dynamic systems, where the underlying connectivity structure is non-stationary and is mostly unobserved. Using a static model in these situations may result in sub-optimal performance. In contrast, modeling changes in graph structure with time can provide information about the system whose applications go beyond classification. Most work of this type does not learn effective connectivity and focuses on cross-correlation between nodes to generate undirected graphs. An undirected graph is unable to capture direction of an interaction which is vital in many fields, including neuroscience. To bridge this gap, we developed dynamic effective connectivity estimation via neural network training (DECENNT), a novel model to learn an interpretable directed and dynamic graph induced by the downstream classification/prediction task. DECENNT outperforms state-of-the-art (SOTA) methods on five different tasks and infers interpretable task-specific dynamic graphs. The dynamic graphs inferred from functional neuroimaging data align well with the existing literature and provide additional information. Additionally, the temporal attention module of DECENNT identifies time-intervals crucial for predictive downstream task from multivariate time series data.
description: Accepted at IJCNN 2022
Classifying homogeneous cellular ordinal balleans up to coarse equivalence
Creators: name: Banakh, Taras
name: Protasov, Igor
name: Repovs, Dusan
name: Slobodianiuk, Sergii
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Topology (math.GN)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 54E35, 51F99

description: For every ballean $X$ we introduce two cardinal characteristics $cov^\flat(X)$ and $cov^\sharp(X)$ describing the capacity of balls in $X$. We observe that these cardinal characteristics are invariant under coarse equivalence and prove that two cellular ordinal balleans $X,Y$ are coarsely equivalent if $cof(X)=cof(Y)$ and $cov^\flat(X)=cov^\sharp(X)=cov^\flat(Y)=cov^\sharp(Y)$. This result implies that a cellular ordinal ballean $X$ is homogeneous if and only if $cov^\flat(X)=cov^\sharp(X)$. Moreover, two homogeneous cellular ordinal balleans $X,Y$ are coarsely equivalent if and only if $cof(X)=cof(Y)$ and $cov^\sharp(X)=cov^\sharp(Y)$ if and only if each of these balleans coarsely embeds into the other ballean. This means that the coarse structure of a homogeneous cellular ordinal ballean $X$ is fully determined by the values of the cardinals $cof(X)$ and $cov^\sharp(X)$. For every limit ordinal $γ$ we shall define a ballean $2^{
description: 8 pages
Relationship between the ground-state wave function of a magnet and its static structure factor
Creators: name: Quintanilla, Jorge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We state and prove two theorems about the ground state of magnetic systems described by very general Heisenberg-type models and discuss their implications for magnetic neutron scattering. The first theorem states that two models cannot have the same correlator without sharing the corresponding ground states. According to the second theorem, an $N$-qubit wave function cannot reproduce the correlators of a given system unless it represents a true ground state of that system. We discuss the implications for neutron scattering inverse problems. We argue that the first theorem provides a framework to understand neutron-based Hamiltonian learning. Furthermore, we propose a variational approach to quantum magnets based on the second theorem where a representation of the wave function (held, for instance, in a neural network or in the qubit register of a quantum processor) is optimised to fit experimental neutron-scattering data directly, without the involvement of a model Hamiltonian.
description: Phys. Rev. B (accepted). 8 pages, 2 new figures, additional references and discussions
Use of novel glucose-lowering therapies in novel populations with type 2 diabetes
Creators: name: Ahmad, Ehtasham
Publisher: name: University of Leicester
Year: 2024

description: The phenotype of T2D is rapidly evolving due to increasingly sedentary lifestyles and unhealthy eating behaviours. Many individuals are diagnosed with T2D at a younger age. This presents unique challenges including early onset of complications and impaired physical function. Experts agree that the overall aim of T2D management should be to maintain optimal glycaemic control and avoid complications while achieving good quality of life and functional independence with due consideration of social determinants of health. Consequently, there is an emerging need to encourage use of “newer” glucose-lowering therapies (GLTs), which confer both glycaemic and metabolic benefits, in diverse populations.The focus of my thesis is to explore the use of “newer” or novel agents; namely sodium–glucose cotransporter 2 inhibitors (SGLT2i), dipeptidyl peptidase-4 inhibitors (DPP4is) and glucagon-like peptide-1 receptor agonists (GLP-1RAs), in diverse T2D populations which have not been focus of much research. These include;• young-onset T2D• people with impaired physical function• people who fast during Ramadan• people who had COVID-19 infectionThe use of novel GLTs is expected to improve metabolic and functional outcomes for these populations.The initial plan of my PhD was to focus on the impact of dapagliflozin, an SGLT2i, on physical function in people with T2D, through a randomised-controlled trial (RCT). However, this was adversely impacted by the COVID-19 pandemic. Recruitment was delayed by ~12 months and when it began, targets were difficult to achieve due to staffing issues and social distancing restrictions. Thus, it was agreed to undertake additional projects focusing on use of novel therapies in novel populations. Undertaking this additional work meant acquiring new skills, expanding knowledge and networking with external peers. As a result, this thesis represents large body of diverse but interconnected work which has been either published or presented at conferences.I have highlighted my contributions in individual chapters.
Single Nitrogen-Vacancy-NMR of Amine-Functionalized Diamond Surfaces
Creators: name: Abendroth, John M.
name: Herb, Konstantin
name: Janitz, Erika
name: Zhu, Tianqi
name: Völker, Laura A.
name: Degen, Christian L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nuclear magnetic resonance (NMR) imaging with shallow nitrogen-vacancy (NV) centers in diamond offers an exciting route toward sensitive and localized chemical characterization at the nanoscale. Remarkable progress has been made to combat the degradation in coherence time and stability suffered by near-surface NV centers using suitable chemical surface termination. However, approaches that also enable robust control over adsorbed molecule density, orientation, and binding configuration are needed. We demonstrate a diamond surface preparation for mixed nitrogen- and oxygen-termination that simultaneously improves NV center coherence times for emitters <10-nm-deep and enables direct and recyclable chemical functionalization via amine-reactive crosslinking. Using this approach, we probe single NV centers embedded in nanopillar waveguides to perform $^{19}\mathrm{F}$ NMR sensing of covalently bound trifluoromethyl tags in the ca. 50-100 molecule regime. This work signifies an important step toward nuclear spin localization and structure interrogation at the single-molecule level.
description: 21 pages and 16 pages supporting information
Spacetime condensation in (2+1)-dimensional CDT from a Horava-Lifshitz minisuperspace model
Creators: name: Benedetti, Dario
name: Henson, Joe
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A spacetime condensation phenomenon underlies the emergence of a macroscopic universe in causal dynamical triangulations, where the time extension of the condensate is strictly smaller than the total time. It has been known for some time that the volumes of spatial slices in the bulk of the macroscopic universe follow a time evolution which resembles that of a sphere, and their effective dynamics is well described by a minisuperspace reduction of the general relativistic action. More recently, it has been suggested that the same minusuperspace model can also provide an understanding of the condensation phenomenon itself, thus explaining the presence of an extended droplet of spacetime connected to a stalk of minimal spatial extension. We show here that a minisuperspace model based on the general relativistic action fails in that respect for the (2+1)-dimensional case, while a successful condensation is obtained from a minisuperspace model of Horava-Lifshitz gravity.
description: 32 pages, 5 figures; three new references and several minor improvements
title: Lehrerbildung@LMU, Bd. 3 Nr. 1 (2023): Lehrerbildung@LMU
title: Lehrerbildung@LMU
titleType: AlternativeTitle
Creators: name: Lehrerbildung@LMU
Publisher: name: Lehrerbildung@LMU
Year: 2023

description: Sprachliches Lernen bewusst anlegen - Sprachdidaktische Überlegungen zu Sprache und Sprache im Fach...1-15
Вопросы устойчивого развития общества,Выпуск 2 (МКСС) 2022
Creators: name: ООО "Институт развития образования и консалтинга"
Publisher: name: ООО "Институт развития образования и консалтинга"
Year: 2022

description: Вопросы устойчивого развития общества,Выпуск 2 (МКСС) 2022
Composite Spin Approach to the Blockade Effect in Rydberg Atom Arrays
Creators: name: Pan, Lei
name: Zhai, Hui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Rydberg blockade induces strongly correlated many-body effects in Rydberg atom arrays, including rich ground-state phases and many-body scar states in the excitation spectrum. In this letter, we propose a composite spin representation that can provide a unified description for major features in this system. The composite spin combines Rydberg excitation and the auxiliary fermions, which are introduced to implement the Rydberg blockade constraint automatically. First, we focus on the PXP model describing one-dimensional arrays with the Rydberg blocking radius being a lattice spacing. Using composite spins, the ground state is simply a ferromagnetic product state of composite spins, and the magnon excitations of these composite spins can accurately describe the many-body scar states and signal the quantum phase transition driven by detuning. Then, we show that Rydberg atom arrays with different blocking radii can share a universal description of the composite spin representation, and the difference between different blockade radii can be absorbed in the formation of composite spins.
description: 6 pages, 5 figures
Oscillatory solitons of U(1)-invariant mKdV equations II: Asymptotic behavior and constants of motion
Creators: name: Anco, Stephen C.
name: Mia, Abdus Sattar
name: Willoughby, Mark R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The Hirota equation and the Sasa-Satsuma equation are U(1)-invariant integrable generalizations of the modified Korteweg-de Vries equation. These two generalizations admit oscillatory solitons, which describe harmonically modulated complex solitary waves parameterized by their speed, modulation frequency, and phase. Depending on the modulation frequency, the speeds of oscillatory waves (1-solitons) can be positive, negative, or zero, in contrast to the strictly positive speed of ordinary solitons. When the speed is zero, an oscillatory wave is a time-periodic standing wave. Oscillatory 2-solitons with non-zero wave speeds are shown to describe overtake collisions of a fast wave and a slow wave moving in the same direction, or head-on collisions of two waves moving in opposite directions. When one wave speed is zero, oscillatory 2-solitons are shown to describe collisions in which a moving wave overtakes a standing wave. An asymptotic analysis using moving coordinates is carried out to show that, in all collisions, the speeds and modulation frequencies of the individual waves are preserved, while the phases and positions undergo a shift such that the center of momentum of the two waves moves at a constant speed. The primary constants of motion as well as some other features of the nonlinear interaction of the colliding waves are discussed.
description: 29 pages, 20 figures
title: Biomechanical Analysis of Coracoid Stability After Coracoplasty
title: How Low Can You Go?
titleType: Subtitle
Creators: name: Heilmann, Lukas F.
name: Sußiek, Julia
name: Raschke, Michael J.
name: Langer, Martin Franz
name: Frank, Andre
name: Wermers, Jens
name: Michel, Philipp
name: Dyrna, Felix
name: Schliemann, Benedikt
name: Katthagen, J. Christoph
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 610 Medicine and health

description: Background: Arthroscopic coracoplasty is a procedure for patients affected by subcoracoid impingement. To date, there is no consensus on how much of the coracoid can be resected with an arthroscopic burr without compromising its stability. Purpose: To determine the maximum amount of the coracoid that can be resected during arthroscopic coracoplasty without leading to coracoid fracture or avulsion of the conjoint tendon during simulated activities of daily living (ADLs). Study Design: Controlled laboratory study. Methods: A biomechanical cadaveric study was performed with 24 shoulders (15 male, 9 female; mean age, 81 ± 7.9 years). Specimens were randomized into 3 treatment groups: group A (native coracoid), group B (3-mm coracoplasty), and group C (5-mm coracoplasty). Coracoid anatomic measurements were documented before and after coracoplasty. The scapula was potted, and a traction force was applied through the conjoint tendon. The stiffness and load to failure (LTF) were determined for each specimen. Results: The mean coracoid thicknesses in groups A through C were 7.2, 7.7, and 7.8 mm, respectively, and the mean LTFs were 428 ± 127, 284 ± 77, and 159 ± 87 N, respectively. Compared with specimens in group A, a significantly lower LTF was seen in specimens in group B (P = .022) and group C (P < .001). Postoperatively, coracoids with a thickness ≥4 mm were able to withstand ADLs. Conclusion: While even a 3-mm coracoplasty caused significant weakening of the coracoid, the individual failure loads were higher than those of the predicted ADLs. A critical value of 4 mm of coracoid thickness should be preserved to ensure the stability of the coracoid process. Clinical Relevance: In correspondence with the findings of this study, careful preoperative planning should be used to measure the maximum reasonable amount of coracoplasty to be performed. A postoperative coracoid thickness of 4 mm should remain.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
Discovering plasticity models without stress data
Creators: name: Flaschel, Moritz
name: Kumar, Siddhant
name: De Lorenzis, Laura
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: We propose a new approach for data-driven automated discovery of material laws, which we call EUCLID (Efficient Unsupervised Constitutive Law Identification and Discovery), and we apply it here to the discovery of plasticity models, including arbitrarily shaped yield surfaces and isotropic and/or kinematic hardening laws. The approach is unsupervised, i.e., it requires no stress data but only full-field displacement and global force data; it delivers interpretable models, i.e., models that are embodied by parsimonious mathematical expressions discovered through sparse regression of a potentially large catalogue of candidate functions; it is one-shot, i.e., discovery only needs one experiment. The material model library is constructed by expanding the yield function with a Fourier series, whereas isotropic and kinematic hardening are introduced by assuming a yield function dependency on internal history variables that evolve with the plastic deformation. For selecting the most relevant Fourier modes and identifying the hardening behavior, EUCLID employs physics knowledge, i.e., the optimization problem that governs the discovery enforces the equilibrium constraints in the bulk and at the loaded boundary of the domain. Sparsity promoting regularization is deployed to generate a set of solutions out of which a solution with low cost and high parsimony is automatically selected. Through virtual experiments, we demonstrate the ability of EUCLID to accurately discover several plastic yield surfaces and hardening mechanisms of different complexity.
On the Annihilation Rate of WIMPs
Creators: name: Baumgart, Matthew
name: Rothstein, Ira Z.
name: Vaidya, Varun
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We develop a formalism that allows one to systematically calculate the WIMP annihilation rate into gamma rays whose energy far exceeds the weak scale. A factorization theorem is presented which separates the radiative corrections stemming from initial state potential interactions from loops involving the final state. This separation allows us to go beyond the fixed order calculation, which is polluted by large infrared logarithms. For the case of Majorana WIMPs transforming in the adjoint representation of SU(2), we present the result for the resummed rate at leading double log accuracy in terms of two initial state partial wave matrix elements and one hard matching coefficient. For a given model, one may calculate the cross section by calculating the tree level matching coefficient and determining the value of a local four fermion operator. We find that the effects of resummation can be as large as 100% for a 20 TeV WIMP. The generalization of the formalism to other types of WIMPs is discussed.
description: 5 pages, 4 figures; v2: operator basis augmented, results unchanged; v3: journal version with consolidated figures
Galactic halo bubble magnetic fields and UHECR deflections
Creators: name: Shaw, Vasundhara
name: van Vliet, Arjen
name: Taylor, Andrew M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We consider the synchrotron emission from electrons out in the Galactic halo bubble region where the Fermi bubble structures reside. Utilising a simple analytical expression for the non-thermal electron distribution and a toy magnetic field model, we simulate polarised synchrotron emission maps at a frequency of 30~GHz. Comparing these maps with observational data, we obtain constraints on the parameters of our toy Galactic halo bubble magnetic field model. Utilising this parameter value range for the toy magnetic field model, we determine the corresponding range of arrival directions and suppression factors of ultra high energy cosmic rays (UHECRs) from potential local source locations. We find that high levels of flux suppression (down to 2\%) and large deflection angles ($\geq 80^{\circ}$) are possible for source locations whose line-of-sight pass through the Galactic halo bubble region. We conclude that the magnetic field out in the Galactic halo bubble region can strongly dominate the level of deflection UHECRs experience whilst propagating from local sources to Earth.
description: 13 pages, 4 figures + 5 Appendix figures
title: The Foresighted Driver: Future ADAS Based on Generalized Predictive Risk Estimation
Creators: name: Eggert, Julian
name: Klingelschmitt, Stefan
name: Damerow, Florian
Publisher: name: UNSPECIFIED
Year: 2023

description: Separably developed functionality as well as increasing situation complexity poses problems for building, testing, and validating future Advanced Driving Assistance Systems (ADAS). These will have to deal with situations in which several current ADAS domains interplay. We argue that a generalized estimation of the future ADAS functions’ benefit is required for efficient testing and evaluations, and propose a quantification based on an estimation of the predicted risk. The approach can be applied to several different types of risks and to such diverse scenarios as longitudinal driving, intersection crossing and lane changes with several traffic participants. Resulting trajectories exhibit a proactive, ”foresighted” driver behavior which smoothly avoids potential future risks.
Constraining viscous dark energy equation of state in $f(R,L_m)$ gravity
Creators: name: Jaybhaye, Lakhan V.
name: Solanki, Raja
name: Mandal, Sanjay
name: Sahoo, Pradyumn Kumar
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article, we attempt to describe cosmic late-time acceleration of the universe in the framework of $f(R,L_m)$ gravity by using an effective equation of state when the account is taken of bulk viscosity. We presume a non-linear $f(R,L_m)$ functional form, specifically, $f(R,L_m)=\frac{R}{2}+L_m^α$, where $α$ is free model parameter. We obtain the exact solution of our bulk viscous matter dominated $f(R,L_m)$ model, and then we utilize the combined $H(z)+Pantheon+Analysis$ data sets to estimate the best fit values of the free parameters of our model. Then we characterize the behaviour of the matter-energy density, effective pressure, and the equation of state (EoS) parameter incorporating the viscous type fluid. The evolution profile of the effective EoS parameter depicts an acceleration phase of the cosmic expansion whereas the pressure with the effect of viscosity exhibits negative behaviour that can lead to the accelerating expansion of the universe. Moreover, the cosmic matter-energy density shows expected positive behaviour. Further, we investigate the behaviour of statefinder parameters for the assumed $f(R,L_m)$ model. We find that the evolutionary trajectory of the given model lies in the quintessence region. In addition, we employ the Om diagnostic test that indicates our model exhibits quintessence behavior. Lastly, we check the energy condition criteria and find that violation of SEC occurs in the past, whereas NEC and DEC satisfies the positivity criteria. We find that our $f(R,L_m)$ cosmological model with the effect of bulk viscosity provides a good fit of the recent observational data and can efficiently describe the cosmic expansion scenario.
description: Universe published version
Oscillatory solitons of U(1)-invariant mKdV equations I: Envelope speed and temporal frequency
Creators: name: Anco, Stephen C.
name: Mia, Abdus Sattar
name: Willoughby, Mark R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Harmonically modulated complex solitary waves which are a generalized type of envelope soliton (herein coined oscillatory solitons) are studied for the two U(1)-invariant integrable generalizations of the modified Korteweg-de Vries equation, given by the Hirota equation and the Sasa-Satsuma equation. A bilinear formulation of these two equations is used to derive the oscillatory 1-soliton and 2-soliton solutions, which are then written out in a physical form parameterized in terms of their speed, modulation frequency, and phase. Depending on the modulation frequency, the speeds of oscillatory waves (1-solitons) can be positive, negative, or zero, in contrast to the strictly positive speed of ordinary solitons. When the speed is zero, an oscillatory wave is a time-periodic standing wave. Properties of the amplitude and phase of oscillatory 1-solitons are derived. Oscillatory 2-solitons are graphically illustrated to describe collisions between two oscillatory 1-solitons in the case when the speeds are distinct. In the special case of equal speeds, oscillatory 2-solitons are shown to reduce to harmonically modulated breather waves.
description: 47 pages, 24 figures
Safe Control Synthesis with Uncertain Dynamics and Constraints
Creators: name: Long, Kehan
name: Dhiman, Vikas
name: Leok, Melvin
name: Cortés, Jorge
name: Atanasov, Nikolay
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper considers safe control synthesis for dynamical systems with either probabilistic or worst-case uncertainty in both the dynamics model and the safety constraints. We formulate novel probabilistic and robust (worst-case) control Lyapunov function (CLF) and control barrier function (CBF) constraints that take into account the effect of uncertainty in either case. We show that either the probabilistic or the robust (worst-case) formulation leads to a second-order cone program (SOCP), which enables efficient safe and stable control synthesis. We evaluate our approach in PyBullet simulations of an autonomous robot navigating in unknown environments and compare the performance with a baseline CLF-CBF quadratic programming approach.
description: Fix typos
Fluctuation bounds on charge and heat diffusion
Creators: name: Kovtun, Pavel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study thermal fluctuation corrections to charge and heat conductivity in systems with locally conserved energy and charge, but without locally conserved momentum. Thermal fluctuations may naturally lead to a lower bound on diffusion constants for thermoelectric transport, and need to be taken into account when discussing potential bounds on transport coefficients.
description: 8 pages. v2: minor clarifications, published version
Quantum field theory of relic nonequilibrium systems
Creators: name: Underwood, Nicolas G.
name: Valentini, Antony
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In terms of the de Broglie-Bohm pilot-wave formulation of quantum theory, we develop field-theoretical models of quantum nonequilibrium systems which could exist today as relics from the very early universe. We consider relic excited states generated by inflaton decay, as well as relic vacuum modes, for particle species that decoupled close to the Planck temperature. Simple estimates suggest that, at least in principle, quantum nonequilibrium could survive to the present day for some relic systems. The main focus of this paper is to describe the behaviour of such systems in terms of field theory, with the aim of understanding how relic quantum nonequilibrium might manifest experimentally. We show by explicit calculation that simple perturbative couplings will transfer quantum nonequilibrium from one field to another (for example from the inflaton field to its decay products). We also show that fields in a state of quantum nonequilibrium will generate anomalous spectra for standard energy measurements. Possible connections to current astrophysical observations are briefly addressed.
description: 22 pages, 13 figures. Minor improvements and some clarifying remarks in v3
A self-adaptive RIS that estimates and shapes fading rich-scattering wireless channels
Creators: name: Saigre-Tardif, Chloé
name: del Hougne, Philipp
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: Applied Physics (physics.app-ph)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: We present a framework for operating a self-adaptive RIS inside a fading rich-scattering wireless environment. We model the rich-scattering wireless channel as being double-parametrized by (i) the RIS, and (ii) dynamic perturbers (moving objects, etc.). Within each coherence time, first, the self-adaptive RIS estimates the status of the dynamic perturbers (e.g., the perturbers' orientations and locations) based on measurements with an auxiliary wireless channel. Then, second, using a learned surrogate forward model of the mapping from RIS configuration and perturber status to wireless channel, an optimized RIS configuration to achieve a desired functionality is obtained. We demonstrate our technique using a physics-based end-to-end model of RIS-parametrized communication with adjustable fading (PhysFad) for the example objective of maximizing the received signal strength indicator. Our results present a route toward convergence of RIS-empowered localization and sensing with RIS-empowered channel shaping beyond the simple case of operation in free space without fading.
description: 5 pages, 3 figures, submitted to an IEEE Conference
องค์ประกอบของขอบข่ายความร่วมมือทางวิชาการของโรงเรียนในเขตพื้นที่บริการวิทยาลัยเทคโนโลยีอุตสาหกรรมศรีสงคราม มหาวิทยาลัยนครพนม
Creators: name: ชาคริต จองไว
Publisher: name: มหาวิทยาลัยมหาจุฬาลงกรณราชวิทยาลัย วิทยาเขตนครสวรรค์
Year: 2023
Subjects: องค์ประกอบ
ความร่วมมือทางวิชาการ
ขอบข่ายความร่วมมือทางวิชาการ

description: The Journal of Research and Academics, 6, 2, 183-198