cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strong-coupling superconductivity of SrIr2 and SrRh2: Phonon engineering of metallic Ir and Rh
Creators: name: Gutowska, Sylwia
name: Górnicka, Karolina
name: Wójcik, Paweł
name: Klimczuk, Tomasz
name: Wiendlocha, Bartlomiej
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Experimental and theoretical studies on superconductivity in SrIr$_2$ and SrRh$_2$ Laves phases are presented. The measured resistivity, heat capacity, and magnetic susceptibility confirm the superconductivity of these compounds with $T_c$ = 6.07 K and 5.41 K, respectively. Electronic structure calculations show that the Fermi surface is mostly contributed by 5$d$ (4$d$) electrons of Ir (Rh), with Sr atoms playing the role of electron donors. The effect of the spin-orbit coupling is analyzed and found to be important in both materials. Lattice dynamics and electron-phonon coupling (EPC) are studied and the strong electron-phonon interaction is found, contributed mostly by the low-frequency Ir and Rh vibrations. The enhancement of EPC when compared to weakly-coupled metallic Ir and Rh is explained by the strong modifications in the propagation of phonons in the network of Ir (Rh) tetrahedrons, which are the building blocks of the Laves phase, and originate from the metallic fcc structures of elemental iridium and rhodium.
description: 22 pages plus Supplemental Material
Formal Query Building with Query Structure Prediction for Complex Question Answering over Knowledge Base
Creators: name: Chen, Yongrui
name: Li, Huiying
name: Hua, Yuncheng
name: Qi, Guilin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Formal query building is an important part of complex question answering over knowledge bases. It aims to build correct executable queries for questions. Recent methods try to rank candidate queries generated by a state-transition strategy. However, this candidate generation strategy ignores the structure of queries, resulting in a considerable number of noisy queries. In this paper, we propose a new formal query building approach that consists of two stages. In the first stage, we predict the query structure of the question and leverage the structure to constrain the generation of the candidate queries. We propose a novel graph generation framework to handle the structure prediction task and design an encoder-decoder model to predict the argument of the predetermined operation in each generative step. In the second stage, we follow the previous methods to rank the candidate queries. The experimental results show that our formal query building approach outperforms existing methods on complex questions while staying competitive on simple questions.
description: Accepted to IJCAI 2020
Boundary field induced first-order transition in the 2D Ising model: numerical study
Creators: name: Bittner, Elmar
name: Janke, Wolfhard
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In a recent paper, Clusel and Fortin [J. Phys. A.: Math. Gen. 39 (2006) 995] presented an analytical study of a first-order transition induced by an inhomogeneous boundary magnetic field in the two-dimensional Ising model. They identified the transition that separates the regime where the interface is localized near the boundary from the one where it is propagating inside the bulk. Inspired by these results, we measured the interface tension by using multimagnetic simulations combined with parallel tempering to determine the phase transition and the location of the interface. Our results are in very good agreement with the theoretical predictions. Furthermore, we studied the spin-spin correlation function for which no analytical results are available.
description: 12 pages, 7 figures, 2 tables
Phygadeuon meridionator
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Phygadeuon
Phygadeuon meridionator

description: Phygadeuon meridionator (AUBERT, 1960)
M a t e r i a l e x a m i n e d: Trap 7: 2♀♀ 27.vii.-10.viii., 1♀ 21.ix.-5.x., 1♀ 19.x.-3.xi.
D i s t r i b u t i o n: Previously known from France and Germany, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 125, DOI: 10.5281/zenodo.10415120
Entropic Uncertainty Relations in Quantum Physics
Creators: name: Bialynicki-Birula, Iwo
name: Rudnicki, Lukasz
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Uncertainty relations have become the trademark of quantum theory since they were formulated by Bohr and Heisenberg. This review covers various generalizations and extensions of the uncertainty relations in quantum theory that involve the Rényi and the Shannon entropies. The advantages of these entropic uncertainty relations are pointed out and their more direct connection to the observed phenomena is emphasized. Several remaining open problems are mentioned
description: 35 pages, review paper
OGAWA_Thesis_LIS_r-unlocked.pdf
Creators: name: Bibliometrics and Research Policy, Nordic Workshop
Publisher: name: figshare
Year: 2021
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: Professional development for educators in K-12 schools has traditionally been one-shot workshops that were not built into their work (Darling-Hammond, 1996). Therefore, many educators have minimal sustained opportunities to augment their knowledge and skills during their careers. Schmoker (2004) recommends professional learning communities (PLC) as a method of professional development that gives teachers the opportunity collaborate in context to improve teaching and learning. Pennel (2008) believes that librarians can be critical members of PLCs, as they have much experience collaborating and nurturing relationships with teachers. Since librarians can be valuable members of PLCs, the purpose of this qualitative case- study was to determine how librarian-teacher PLCs develop, identify the role of the librarian in a PLC, and determine behaviors or practices that contribute to an effective PLC in a specific high school setting. The researcher identified the librarians as the initiators of the PLC. Their roles included leader, supporter, collaborator, and learner. Lastly, their specific behaviors and practices were based on a theoretical framework that was rooted in Hord (1997, 2003) and DuFour’s (2004) models. The researcher contributed to PLC research with this case study about the development and evolution of a librarian-teacher PLC in a Hawaii high school.
title: NMR Relaxation Dispersion of Liquids Adsorbed on Modified Surfaces of SBA-15 Mesoporous Silica
Creators: name: Gizatullin, Bulat
name: Mattea, Carlos
name: Stapf, Siegfried
name: Wissel, Till
name: Buntkowsky, Gerd
Publisher: name: American Chemical Society
Year: 2024

description: The NMR relaxation dispersion of ¹H and ²H nuclei in water and alkanes was studied in mesoporous SBA-15 silica in its native state and with modified internal surfaces. By comparison with silica gel of comparable characteristic pore size, a qualitative agreement of the relaxation dispersion was found. In the absence of detectable amounts of paramagnetic centers, intramolecular relaxation is approximated by the model of Reorientations Mediated by Translational Displacements (RMTD), which assumes rigid molecules diffusing along curved surfaces and experiencing long-term memory of their relative orientation due to their polarity. For all liquids, significant relaxation dispersion is found so that the vanishing polarity of alkanes does not allow the assumption of a negligible surface interaction. The difference in dispersion shape between ¹H and ²H nuclei, relaxing by dipolar and quadrupolar mechanisms, respectively, allows the reconstruction of the intermolecular contribution to relaxation, which has not yet been studied systematically in porous media. A model based on the relative contributions of intra- and intermolecular interactions as well as hydrogen exchange with OH- and NH₂-groups is presented.
Prenylaromadendrane-type diterpenoids from the gum resin of Boswellia sacra flueck and their cytotoxic effects
Creators: name: Wang, Jia-Jia
name: Suo, Xin-Yue
name: Sun, Hao-Ran
name: Wang, Xue
name: Lin, Ming-Bao
name: Wang, Jin-Hua
name: Jiang, Jian-Dong
name: Ji, Teng-Fei
Publisher: name: Taylor & Francis
Year: 2021
Subjects: Biochemistry
Pharmacology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer

description: Two new prenylaromadendrane-type diterpenoids, and three known analogues, were isolated from the ethanol extract of the gum resin of B. sacra Flueck. The structures of the new compounds were elucidated using 1 D and 2 D NMR spectroscopic analyses, mass spectrometric data, circular dichroism spectra, and comparison with the other compounds in the literature. One diterpenoid represents the first example of an acetoxyl-substituted prenylaromadendranoid in frankincense. All compounds exhibited notable cytotoxicity against human malignant glioma (U87-MG) cell line, with inhibitory rates exceeding that of the positive control 5-fluorouracil. However, nitric oxide inhibition induced by lipopolysaccarides was not observed in primary mouse peritoneal macrophages.
Transactional analysis ego states : subdivisions and definitions determined by latent partition analysis
Creators: name: Kuijt, Jean Davidson
Publisher: name: University of British Columbia
Year: 2010

description: This study- was designed to examine Transactional Analysis (TA) practitioners' definitions of ego states and to establish categories of behavioral descriptors which can be used in functional analysis of ego states. To achieve these purposes a representative sample, of TA experts resident in Canada and the U.S. was surveyed to determine what categories they would use for classifying a set of 97 behavioral descriptors. A categorization methodology developed by Miller et al. (1967) was followed and latent partition analysis (LPA) was used to analyse the data received from 111 TA practitioners. The LPA model fitted the data extremely well with a ten-category solution best satisfying the criteria for goodness-of-fit. The ten latent categories, closely corresponding to TA constructs, were: OK Controlling Parent, Not-OK Controlling Parent, OK Nurturing Parent, Not-OK Nurturing Parent, Computing Adult, Experiencing Adult, Little Professor (LP), Natural Child (NC), Compliant Child (CC), and Rebellious Child (RC). As the number of latent categories was reduced these combined hierarchically to form Controlling Parent., Nurturing Parent, Adult, Free Child (LP + NC), and Adapted Child (CC + RC). Descriptors which can or cannot be assigned to just one category were identified. An Ego State Check List was developed from 86 of the descriptors which could be assigned to a single category. The test is available from the author for research purposes.
Quantum Induced Broadening- A Challenge For Cosmic Neutrino Background Discovery
Creators: name: Nussinov, Shmuel
name: Nussinov, Zohar
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A recent preprint by Cheipesh {\it et al.} pointed out that the zero-point motion of Tritium atoms bound to Graphene may blur the measured energies of $β$ electrons. Smearing due to zero point motion is well known. Such an effect features in studies of the $β$ spectrum expected in experiments like KATRIN using diatomic Tritium. The recent preprint may, however, challenge new planned experiments seeking to discover the Cosmic Neutrino Background (CNB) neutrinos (and/or other neutrinos of masses smaller than $0.1$ eV) which plan to use Tritium adsorbed onto Graphene or other materials. Our paper clarifies these issues and examines the more general problem of smearing induced by quantum uncertainty. We find that the effect of Cheipesh {\it et al.} is reduced considerably. The importance of the chemical evolution of the $^{3}$H atom hosting the Tritium nucleus into a tightly bound neutral $^{3}$He atom is emphasized. We estimate the excess blurring caused by the dense spectrum near the lowest state of the Graphene or other hosts of the Tritium atom, generated by the electronic response to the "sudden" escape of the $β$ electron. Our analysis suggests yet larger effects and difficulties facing many experiments searching for small mass neutrinos. We speculate on a possible experimental setup which could minimize quantum broadening.
description: 13 pages, 1 figure
title: Using Simultaneous Prompting and Computer Assisted Instruction with Pictures to Teach Narrative Writing Skills to Students with Significant Cognitive Disabilities
Creators: name: Larson, Bonnie J.
Publisher: name: Utah State University
Year: 2016

description: Students with significant cognitive disabilities often struggle to express themselves with written language. This project examined the effects of combining simultaneous prompting and computer assisted instruction, including picture icons, to teach students with significant cognitive disabilities to create narrative stories. Participants included seven students with significant disabilities currently being taught in a self-contained special education classroom located in a public elementary school. Participants had educational classifications of autism spectrum disorder, intellectual disability, or multiple disabilities. A multiple probe across behaviors design was used and instructors measured the number of sentences written by participants in each computer session. Sentences were defined as a group of words that contain at least a subject and a verb and were linked in a logical way. First, a simultaneous prompting intervention was used to teach participants to copy simple three-sentence stories using the PixwriterTM assisted writing program on a preferred topic. When the participants could do this, they were given a two-sentence story to copy and then asked to generate a final sentence that would be cohesive with the story. This process was to be repeated across three preferred topics. Participants in this study had varying results with this intervention. Six of the participants with significant cognitive skills got to practice their own narrative story writing skills. Only one participant completed the full intervention. One participant did not get past copying the prepared stories. All of the participants enjoyed listening to the computer as it read the stories that they copied or helped to create.
Thresholding Projection Estimators in Functional Linear Models
Creators: name: Cardot, Herve
name: Johannes, Jan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider the problem of estimating the regression function in functional linear regression models by proposing a new type of projection estimators which combine dimension reduction and thresholding. The introduction of a threshold rule allows to get consistency under broad assumptions as well as minimax rates of convergence under additional regularity hypotheses. We also consider the particular case of Sobolev spaces generated by the trigonometric basis which permits to get easily mean squared error of prediction as well as estimators of the derivatives of the regression function. We prove these estimators are minimax and rates of convergence are given for some particular cases.
description: Revised version for J. of Multivariate Analysis
Deep Learning for Multi-View Ultrasonic Image Fusion
Creators: name: Pilikos, Georgios
name: Horchens, Lars
name: van Leeuwen, Tristan
name: Lucka, Felix
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Ultrasonic imaging is being used to obtain information about the acoustic properties of a medium by emitting waves into it and recording their interaction using ultrasonic transducer arrays. The Delay-And-Sum (DAS) algorithm forms images using the main path on which reflected signals travel back to the transducers. In some applications, different insonification paths can be considered, for instance by placing the transducers at different locations or if strong reflectors inside the medium are known a-priori. These different modes give rise to multiple DAS images reflecting different geometric information about the scatterers and the challenge is to either fuse them into one image or to directly extract higher-level information regarding the materials of the medium, e.g., a segmentation map. Traditional image fusion techniques typically use ad-hoc combinations of pre-defined image transforms, pooling operations and thresholding. In this work, we propose a deep neural network (DNN) architecture that directly maps all available data to a segmentation map while explicitly incorporating the DAS image formation for the different insonification paths as network layers. This enables information flow between data pre-processing and image post-processing DNNs, trained end-to-end. We compare our proposed method to a traditional image fusion technique using simulated data experiments, mimicking a non-destructive testing application with four image modes, i.e., two transducer locations and two internal reflection boundaries. Using our approach, it is possible to obtain much more accurate segmentation of defects.
Additional file 1: of The Ramazzini Institute 13-week pilot study on glyphosate and Roundup administered at human-equivalent dose to Sprague Dawley rats: effects on the microbiome
Creators: name: Mao, Qixing
name: Manservisi, Fabiana
name: Panzacchi, Simona
name: Mandrioli, Daniele
name: Menghetti, Ilaria
name: Vornoli, Andrea
name: Bua, Luciano
name: Falcioni, Laura
name: Lesseur, Corina
name: Chen, Jia
name: Belpoggi, Fiorella
name: Hu, Jianzhong
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Physiology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Virology

description: Figure S1. 16S microbiome profiling. A. Dot plot shows the distribution of the number of reads in three treatment groups. The Wilcoxon test significance between two groups was listed in table on the right and the diagonal of the table shows the average reads of each group. B. Box plot shows the mean and variation of total DNA concentrations from rat fecal samples. C. Bar plot showed the mean abundance of microbial composition at phylum level for each treatment and time of collection. (PDF 174Â kb)
title: Soil Nitrate, Total Nitrogen and Organic Matter in Relation to Dry-Farming
Creators: name: Ramaiah, Krishnappa
Publisher: name: Utah State University
Year: 1951

description: Dry farming has been defined as production of useful crops, without irrigation, on lands that receive an annual precipitation of 20 inches or less. In some regions the term dry farming is applied to farming without irrigation under annual precipitation of 30 inches or less. Although there is no sharp demarkation between dry farming and humid farming, the term dry farming always means farming under difficulties due to limited annual rainfall.
title: Microstructure Noise: The Use of Two Scales Realized Volatility for the Noisy High-Frequency Data and its Implications for Market Efficiency and Financial Forecasting
Creators: name: Romero, Aristides
Publisher: name: Utah State University
Year: 2016

description: As a basic principle in statistics, a larger sample size is preferred whenever possible. Nonetheless, in the financial world, especially equities and currencies trading, including all available data poses great challenges due to the noise present in the volatility estimation. In his paper I examine the Two Time Scales Realized Volatility estimator by Zhang, Mykland, and Ait-Sahalia (2005b) and I find that it not only provides a more efficient estimator than a basic estimator of the integrated volatility of returns, but it also consistently estimates the microstructure noise present in the latent efficient return process. I find that by using this approach, it is possible to compare the efficiency of the prices of securities with lower transaction costs traded against those with higher transactions costs.
microRNA 92b-3p regulates primordial follicle assembly by targeting TSC1 in neonatal mouse ovaries
Creators: name: Li, Tingting
name: Liu, Xiaoqiu
name: Gong, Xuefeng
name: E, Qiukai
name: Zhang, Xiaoqian
name: Zhang, Xuesen
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: The primordial follicle pool, providing all oocytes available to a female throughout her reproductive life, is established perinatally. The formation of primordial follicle pool is regulated by precise transcriptional and post-transcriptional mechanisms. Recent studies have identified several microRNAs as post-transcriptional regulatory factors in the process of primordial follicle assembly. Here, we showed that miR-92b-3p was significantly upregulated in the stage of primordial follicle assembly in newborn mouse ovaries. Inhibiting miR-92b-3p suppressed the formation of primordial follicles, while overexpression of miR-92b-3p accelerated the processes of cyst breakdown and the following primordial follicle assembly. Accordingly, the expression of follicular development-related genes was reduced upon inhibiting of miR-92b-3p and increased under miR-92b-3p overexpression. Mechanistic studies identified TSC1 as a direct target of miR-92b-3p. miR-92b-3p could activate mTOR/Rps6 signaling through targeting and inhibiting TSC1 expression. In addition, knockdown of TSC1 showed an identical phenotype with that of miR-92b-3p overexpression in accelerating processes of cyst breakdown and primordial follicle formation. Thus, our work demonstrates that miR-92b-3p is a novel regulator of primordial follicle assembly by negatively regulating TSC1 in mTOR/Rps6 signaling.
title: A Monte Carlo Study on the Persistence of Variance with Garch
Creators: name: Romero Moreno, Aristides
Publisher: name: Utah State University
Year: 2016

description: The GARCH model is widely used to forecast volatility for economic and financial Data. There are, however, several shortcomings of using the simple GARCH estimator alone for forecasting volatility. The major issue with the use of the default GARCH model is the persistence of variance that evolves through time and the simple GARCH model fails to address. This paper looks at the GARCH(1,1) model and consistent with Lamoureux and Lastrapes (1990), finds that it overstates the persistence of variance due to model misspecification, specifically the lack of structural shifts.
Band bending and quasi-2DEG in the metallized $β$-SiC(001) surface
Creators: name: Rurali, R.
name: Wachowicz, E.
name: Hyldgaard, P.
name: Ordejón, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the mechanism leading to the metallization of the $β$-SiC(001) Si-rich surface induced by hydrogen adsorption. We analyze the effects of band bending and demonstrate the existence of a quasi-2D electron gas, which originates from the donation of electrons from adsorbed hydrogen to bulk conduction states. We also provide a simple model that captures the main features of the results of first-principles calculations, and uncovers the basic physics of the process.
description: accepted for publication in physica status solidi - Rapid Research Letters
The sl(2) foam cohomology via a TQFT
Creators: name: Caprau, Carmen
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27, 19D23

description: We construct a cohomology theory for oriented links using singular cobordisms and a special type of 2-dimensional Topological Quantum Field Theory (TQFT), categorifying the quantum sl(2) invariant. In particular, we give a description of the universal dot-free sl(2) foam cohomology for links via a TQFT.
description: 24 pages, many figures; references have been added and some concepts have been clarified
Excitonic wave-packet evolution in a two-orbital Hubbard model chain: A real-time real-space study
Creators: name: Pandey, Bradraj
name: Alvarez, Gonzalo
name: Dagotto, Elbio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by experimental developments introducing the concept of spin-orbit separation, we study the real-space time evolution of an excitonic wave-packet using a two-orbital Hubbard model. The exciton is created by exciting an electron from a lower energy half-filled orbital to a higher energy empty orbital. We carry out the real-time dynamics of the resulting excitonic wave-packet, using the time-dependent density matrix renormalization group method. We find clear evidence of charge-spin and spin-orbit separation in real-space, by tracking the time evolution of local observables. We show that the velocity of the orbiton can be tuned by varying the inter-orbital interactions. We also present a comparative study of a hole (in one orbital) and exciton (in two orbitals) dynamics in one-dimensional systems. Moreover, we analyze the dynamics of an exciton with spin-flip excitation, where we observe fractionalized spinons induced by Hund's interaction.
description: 7 pages, 5 figures
Effect of the Bloch-Siegert Shift on the Frequency Responses of Rabi Oscillations in the Case of Nutation Resonance
Creators: name: Saiko, A. P.
name: Fedoruk, G. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The dynamics of a two-level spin system dressed by bichromatic radiation is studied under the conditions of double resonance when the frequency of one (microwave) field is equal to the Larmor frequency of the spin system and the frequency of the other (radio-frequency) field ω_{rf} is close to the Rabi frequency ω_{1} in a micro-wave field. It is shown theoretically that Rabi oscillations between dressed-spin states with the frequency εare accompanied by higher-frequency oscillations at frequencies nω_{rf} and nω_{rf}\pm ε, where n = 1, 2, .... The most intense among these are the signals corresponding to n = 1. The counter-rotating (antiresonance) components of the RF field give rise to a shift of the dressed-state energy, i.e., to a frequency shift similar to the Bloch-Siegert shift. In particular, this shift is manifested as the dependence of the Rabi-oscillation frequency εon the sign of the detuning ω{1} -ω{rf} from resonance. In the case of double resonance, the oscillation amplitude is asymmetric; i.e., the amplitude at the sum frequency ω_{rf} +εincreases, while the amplitude at the difference frequency ω_{rf} -εdecreases. The predicted effects are confirmed by observations of the nutation signals of the electron paramagnetic resonance (EPR) of centers in quartz and should be taken into account to realize qubits with a low Rabi frequency in solids.
description: 5 pages, 3 figures
On The Heavy Chemical Composition of the Ultra-High Energy Cosmic Rays
Creators: name: Hooper, Dan
name: Taylor, Andrew M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Pierre Auger Observatory's (PAO) shower profile measurements can be used to constrain the chemical composition of the ultra-high energy cosmic ray (UHECR) spectrum. In particular, the PAO's measurements of the average depth of shower maximum and the fluctuations of the depth of shower maximum indicate that the cosmic ray spectrum is dominated by a fairly narrow distribution (in charge) of heavy or intermediate mass nuclei at the highest measured energies (E > 10^{19} eV), and contains mostly lighter nuclei or protons at lower energies (E ~ 10^{18} eV). In this article, we study the propagation of UHECR nuclei with the goal of using these measurements, along with those of the shape of the spectrum, to constrain the chemical composition of the particles accelerated by the sources of the UHECRs. We find that with modest intergalactic magnetic fields, 0.3 nG in strength with 1 Mpc coherent lengths, good fits to the combined PAO data can be found for the case in which the sources accelerate primarily intermediate mass nuclei (such as nitrogen or silicon). Without intergalactic magnetic fields, we do not find any composition scenarios that can accommodate the PAO data. For a spectrum dominated by heavy or intermediate mass nuclei, the Galactic (and intergalactic) magnetic fields are expected to erase any significant angular correlation between the sources and arrival directions of UHECRs.
description: 10 pages, 8 figues
Teleportation of geometric structures in 3D
Creators: name: Aerts, Diederik
name: Czachor, Marek
name: Orlowski, Lukasz
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Simplest quantum teleportation algorithms can be represented in geometric terms in spaces of dimensions 3 (for real state-vectors) and 4 (for complex state-vectors). The geometric representation is based on geometric-algebra coding, a geometric alternative to the tensor-product coding typical of quantum mechanics. We discuss all the elementary ingredients of the geometric version of the algorithm: Geometric analogs of states and controlled Pauli gates. Fully geometric presentation is possible if one employs a nonstandard representation of directed magnitudes, formulated in terms of colors defined via stereographic projection of a color wheel, and not by means of directed volumes.
description: typos corrected, one plot removed
title: The Lower Cretaceous Cedar Mountain Formation of Eastern Utah: A Comparison with the Coeval Burro Canyon Formation, Including New Measured Sections on the Uncompahgre Uplift
Creators: name: Miller, Roger D.
Publisher: name: Utah State University
Year: 2016

description: The Early Cretaceous (Barremian-Albian) Burro Canyon Formation in Eastern Utah and Western Colorado is a dominantly fluvial system that resembles the Cedar Mountain Formation, a correlative unit that lies across the Colorado River and is famous for recent dinosaur discoveries, The Burro Canyon Formation is arbitrarily split from the Cedar Mountain Formation using the Colorado River as a dividing line. This non-stratigraphic means of splitting one unit from the other is largely due to convention and it has become entrenched in the literature.
Sections measured on Hotel Mesa and Buckhorn Mesa, both in eastern Grand County, Utah, were made in order to better delineate the contact between the two formations in this remote area on the Uncompahgre Plateau. The section on Hotel Mesa is in the Poison Strip Sandstone Member of the Cedar Mountain Formation as demonstrated by correlation to nearby established measured sections.
Multiple paleocurrents were taken on Buckhorn Mesa, along with three new measured sections. These measured sections and paleoflows were then used to determine whether these rocks are likely to be in the Burro Canyon Formation or the Cedar Mountain Formation. Facies were established for the outcrops, with preliminary facies associations then being developed and outlined on photographs.
Analyses show that these fluvial sandstones on this edge of the Uncompahgre Plateau are all in the Poison Strip Sandstone Member of the Cedar Mountain Formation. Also, no other Early Cretaceous sediments are found on this entire portion of the Plateau, as illustrated using panoramic photographs.
The extension of radiative viscosity to superfluid matter
Creators: name: Pi, Chun-Mei
name: Yang, Shu-Hua
name: Zheng, Xiao-Ping
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The radiative viscosity of superfluid $npe$ matter is studied, and it is found that to the lowest order of $δμ/T$ the ratio of radiative viscosity to bulk viscosity is the same as that of the normal matter.
description: 4 pages
ХАЛИЛ СУЛТОН САРОЙИ АДАБИЙ МУҲИТИ ВА УНИНГ НАМОЁНДАЛАРИ
Creators: name: Худойберди МЕЙЛИЕВ, Қарши ирригация ва агротехнологиялар институти тадқиқотчиси
Publisher: name: Zenodo
Year: 2024

description: Соҳибқирон Амир Темурнинг набираси Мироншоҳ Мирзонинг ўғли 1405-1409-йилларда Мовароуннаҳр ҳукмдори бўлган Халил Султон (1384-1411) саройида олимлар, фозиллар, санъаткорлар ва шоирлар ижод қилган. Шаҳзоданинг ўзи ҳам шеърлар ёзган. Алишер Навоий “Мажолис ун-нафоис”да шоирлар ва зиёлилар тўпланадиган Халил Султон саройидаги адабий мажлис тўғрисида шундай ёзган: “Зурафо ва шуаро мажлисида жамъ бўлурлар эрди. Машҳурдурким, ўзи шеър айтур эрди. Андоқки, девони таърифида Хожа Исматуллоҳ қасида айтибдур, аммо тилаб топилмади, ушбу матлаидин ўзгаким
Multimode Mamyshev Oscillator
Creators: name: Haig, Henry
name: Sidorenko, Pavel
name: Dhar, Anirban
name: Choudhury, Nilotpal
name: Sen, Ranjan
name: Christodoulides, Demetrios
name: Wise, Frank
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We present a spatiotemporally mode-locked Mamyshev oscillator. A wide variety of multimode mode-locked states, with varying degrees of spatiotemporal coupling, are observed. We find that some control of the modal content of the output beam is possible through the cavity design. Comparison of simulations to experiments indicates that spatiotemporal mode-locking is enabled by nonlinear intermodal interactions and spatial filtering, along with the Mamyshev mechanism. This work represents a first exploration of spatiotemporal mode-locking in an oscillator with the Mamyshev saturable absorber.
description: 4 pages, 6 figures
Thermal Effects on the Stability of Excited Atoms in Cavities
Creators: name: Khanna, F. C.
name: Malbouisson, A. P. C.
name: Malbouisson, J. M. C.
name: Santana, A. E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: An atom, coupled linearly to an environment, is considered in a harmonic approximation in thermal equilibrium inside a cavity. The environment is modeled by an infinite set of harmonic oscillators. We employ the notion of dressed states to investigate the time evolution of the atom initially in the first excited level. In a very large cavity (free space) for a long elapsed time, the atom decays and the value of its occupation number is the physically expected one at a given temperature. For a small cavity the excited atom never completely decays and the stability rate depends on temperature.
description: 7 pages, 4 figures
The singular continuous diffraction measure of the Thue-Morse chain
Creators: name: Baake, Michael
name: Grimm, Uwe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37B10, 42A82, 52C23

description: The paradigm for singular continuous spectra in symbolic dynamics and in mathematical diffraction is provided by the Thue-Morse chain, in its realisation as a binary sequence with values in $\{\pm 1\}$. We revisit this example and derive a functional equation together with an explicit form of the corresponding singular continuous diffraction measure, which is related to the known representation as a Riesz product.
description: 6 pages, 1 figure; revised and improved version
Quantizing Majorana Fermions in a Superconductor
Creators: name: Chamon, C.
name: Jackiw, R.
name: Nishida, Y.
name: Pi, S. -Y.
name: Santos, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A Dirac-type matrix equation governs surface excitations in a topological insulator in contact with an s-wave superconductor. The order parameter can be homogenous or vortex valued. In the homogenous case a winding number can be defined whose non-vanishing value signals topological effects. A vortex leads to a static, isolated, zero energy solution. Its mode function is real, and has been called "Majorana." Here we demonstrate that the reality/Majorana feature is not confined to the zero energy mode, but characterizes the full quantum field. In a four-component description a change of basis for the relevant matrices renders the Hamiltonian imaginary and the full, space-time dependent field is real, as is the case for the relativistic Majorana equation in the Majorana matrix representation. More broadly, we show that the Majorana quantization procedure is generic to superconductors, with or without the Dirac structure, and follows from the constraints of fermionic statistics on the symmetries of Bogoliubov-de Gennes Hamiltonians. The Hamiltonian can always be brought to an imaginary form, leading to equations of motion that are real with quantized real field solutions. Also we examine the Fock space realization of the zero mode algebra for the Dirac-type systems. We show that a two-dimensional representation is natural, in which fermion parity is preserved.
description: 26 pages, no figures
Phygadeuon punctiventris THOMSON 1884
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Phygadeuon
Phygadeuon punctiventris

description: Phygadeuon punctiventris THOMSON, 1884, det. SCHWARZ
M a t e r i a l e x a m i n e d: Trap 4: 1♀ 20.iv.-5.v.; trap 7: 1♀ 5-20.v., 1♀ 13-27.vii.; trap 12: 2♀♀ 5-20.v., 1♀ 20.v.-1.vi.
D i s t r i b u t i o n: Western Palaearctic, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 125, DOI: 10.5281/zenodo.10415120
Cosmic strings in a space-time with positive cosmological constant
Creators: name: Brihaye, Yves
name: Hartmann, Betti
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study Abelian strings in a fixed de Sitter background. We find that the gauge and Higgs fields extend smoothly across the cosmological horizon and that the string solutions have oscillating scalar fields outside the cosmological horizon for all currently accepted values of the cosmological constant. If the gauge to Higgs boson mass ratio is small enough, the gauge field function has a power-like behaviour, while it is oscillating outside the cosmological horizon if Higgs and gauge boson mass are comparable. Moreover, we observe that Abelian strings exist only up to a maximal value of the cosmological constant and that two branches of solutions exist that meet at this maximal value. We also construct radially excited solutions that only exist for non-vanishing values of the cosmological constant and are thus a novel feature as compared to flat space-time. Considering the effect of the de Sitter string on the space-time, we observe that the deficit angle increases with increasing cosmological constant. Lensed objects would thus be separated by a larger angle as compared to asymptotically flat space-time.
description: 19 pages including 10 figures; discussion on deficit angle added; Final version to appear in Phys. Lett. B
Convergence rates for arbitrary statistical moments of random quantum circuits
Creators: name: Brown, Winton G.
name: Viola, Lorenza
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a class of random quantum circuits where at each step a gate from a universal set is applied to a random pair of qubits, and determine how quickly averages of arbitrary finite-degree polynomials in the matrix elements of the resulting unitary converge to Haar measure averages. This is accomplished by establishing an exact mapping between the superoperator that describes t-order moments on n qubits and a multilevel SU(4^t) Lipkin-Meshkov-Glick Hamiltonian. For arbitrary fixed t, we find that the spectral gap scales as 1/n in the thermodynamic limit. Our results imply that random quantum circuits yield an efficient implementation of ε-approximate unitary t-designs.
description: 4 pages, 1 figure 2nd revised version with supplementary material
On the Security of Permissioned Blockchain Solutions for IoT Applications
Creators: name: Brotsis, Sotirios
name: Kolokotronis, Nicholas
name: Limniotis, Konstantinos
name: Shiaeles, Stavros
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The blockchain has found numerous applications in many areas with the expectation to significantly enhance their security. The Internet of things (IoT) constitutes a prominent application domain of blockchain, with a number of architectures having been proposed for improving not only security but also properties like transparency and auditability. However, many blockchain solutions suffer from inherent constraints associated with the consensus protocol used. These constraints are mostly inherited by the permissionless setting, e.g. computational power in proof-of-work, and become serious obstacles in a resource-constrained IoT environment. Moreover, consensus protocols with low throughput or high latency are not suitable for IoT networks where massive volumes of data are generated. Thus, in this paper we focus on permissioned blockchain platforms and investigate the consensus protocols used, aiming at evaluating their performance and fault tolerance as the main selection criteria for (in principle highly insecure) IoT ecosystem. The results of the paper provide new insights on the essential differences of various consensus protocols and their capacity to meet IoT needs.
Viscous effect in the late time evolution of phantom universe
Creators: name: Yang, Jing
name: Lin, Rui-Hui
name: Feng, Chao-Jun
name: Zhai, Xiang-Hua
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the cosmological implications of a phantom dark energy model with bulk viscosity. We explore this model as a possible way to resolve the big rip singularity problem that plagues the phantom models. We use the latest type Ia supernova and Hubble parameter data to constrain the model parameters and find that the data favor a significant bulk viscosity over a non-constant potential term for the phantom field. We perform a dynamical analysis of the model and show that the only stable and physical attractor corresponds to a phantom-dominated era with a total equation of state that can be greater than $-1$ due to the viscosity. We also study the general effect of viscosity on the phantom field and the late time evolution of the universe. We apply the statefinder diagnostic to the model and find that it approaches a nearby fixed point asymptotically, indicating that the universe can escape the big rip singularity with the presence of bulk viscosity. We conclude that bulk viscosity can play an important role in affecting the late-time behavior as well as alleviating the singularity problem of the phantom universe.
description: accepted by EPJC
V488 Per revisited: no strong mid-infrared emission features and no evidence for stellar/sub-stellar companions
Creators: name: Sankar, Swetha
name: Melis, Carl
name: Klein, Beth L.
name: Fulton, B. J.
name: Zuckerman, B.
name: Song, Inseok
name: Howard, Andrew W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present characterization of the planetary system architecture for V488 Per, the dustiest main sequence star known with a fractional infrared luminosity of ~16%. Far-infrared imaging photometry confirms the existence of an outer planetary system dust population with blackbody-fit temperature of ~130 K. Mid-infrared spectroscopy probing the previously-identified ~800 K inner planetary system dust population does not detect any obvious solid-state emission features, suggesting either large grain sizes that mute such emission and/or grain compositions dominated by species like amorphous carbon and metallic iron which do not produce such features. In the latter case, the presence of significant quantities of iron-rich material could be indicative of the active formation of a Mercury-like planet around V488 Per. In any event, the absence of solid-state emission features is very unusual among main sequence stars with copious amounts of warm orbiting dust particles; we know of no other such star whose mid-infrared spectrum lacks such features. Combined radial velocity monitoring and adaptive optics imaging find no evidence for stellar/sub-stellar companions within several hundred AU of V488 Per.
description: Accepted to ApJ. 17 pages, 5 figures and 2 tables
MOESM1 of Safety and efficacy of obinutuzumab in Chinese patients with B-cell lymphomas: a secondary analysis of the GERSHWIN trial
Creators: name: Qin, Yan
name: Song, Yuqin
name: Shen, Zhixiang
name: Du, Xin
name: Ji, Wei
name: Hsu, Wanling
name: Zhu, Jun
name: Shi, Yuankai
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Computational Biology

description: Additional file 1. Detailed inclusion and exclusion criteria.