cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Figure S1.
Creators: name: Wang, Hui
Publisher: name: figshare
Year: 2022
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Supplement Figure S1. Title: Associations between PC (18:0/22:6) and the risk of gestational diabetes mellitus (GDM) in Chinese women. 
Models of Supersymmetry for Dark Matter
Creators: name: Munoz, Carlos
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A brief review of supersymmetric models and their candidates for dark matter is carried out. The neutralino is a WIMP candidate in the MSSM where $R$-parity is conserved, but this model has the $μ$ problem. There are natural solutions to this problem that necessarily introduce new structure beyond the MSSM, including new candidates for dark matter. In particular, in an extension of the NMSSM, the right-handed sneutrino can be used for this job. In $R$-parity violating models such as the $μν$SSM, the gravitino can be the dark matter, and could be detected by its decay products in gamma-ray experiments.
description: Proceedings of RICAP 2016, 6 pages, 1 figure
Imaging ultrafast molecular wavepackets with a single chirped UV pulse
Creators: name: Jelovina, Denis
name: Feist, Johannes
name: Martín, Fernando
name: Palacios, Alicia
Publisher: name: arXiv
Year: 2017
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how to emulate a conventional pump-probe scheme using a single frequency-chirped ultrashort UV pulse to obtain a time-resolved image of molecular ultrafast dynamics. The chirp introduces a spectral phase in time that encodes the delay between the pump and the probe frequencies contained in the pulse. By comparing the results of full dimensional ab initio calculations for the H$^+_2$ molecule with those of a simple sequential model, we demonstrate that, by tuning the chirp parameter, two-photon energy-differential ionization probabilities directly map the wave packet dynamics generated in the molecule. As a result, one can also achieve a significant amount of control of the total ionization yields, with a possible enhancement by more than an order of magnitude.
description: 6 pages, 4 figures
UAVs as a Service: Boosting Edge Intelligence for Air-Ground Integrated Networks
Creators: name: Dong, Chao
name: Shen, Yun
name: Qu, Yuben
name: Wu, Qihui
name: Wu, Fan
name: Chen, Guihai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The air-ground integrated network is a key component of future sixth generation (6G) networks to support seamless and near-instant super-connectivity. There is a pressing need to intelligently provision various services in 6G networks, which however is challenging. To meet this need, in this article, we propose a novel architecture called UaaS (UAVs as a Service) for the air-ground integrated network, featuring UAV as a key enabler to boost edge intelligence with the help of machine learning (ML) techniques. We envision that the proposed UaaS architecture could intelligently provision wireless communication service, edge computing service, and edge caching service by a network of UAVs, making full use of UAVs' flexible deployment and diverse ML techniques. We also conduct a case study where UAVs participate in the model training of distributed ML among multiple terrestrial users, whose result shows that the model training is efficient with a negligible energy consumption of UAVs, compared to the flight energy consumption. Finally, we discuss the challenges and open research issues in the UaaS.
description: 12 pages, 6 figures, submitted to IEEE for possible publication
Dynamics of cohering and decohering power under Markovian channels
Creators: name: Chen, Ming-Ming
name: Luo, Yu
name: Shao, Lian-He
name: Li, Yong-Ming
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we investigate the cohering and decohering power for the one-qubit Markovian channels with respect to coherence in terms of the $l_{1}$-norm, the R$\acute{e}$nyi $α$-relative entropy and the Tsallis $α$-relative entropy. In the case of $α=2$, the cohering and decohering power of the amplitude damping channel, the phase damping channel, the depolarizing channel, and the flip channels under the three measures of coherence are calculated analytically. The decohering power on the $x, y, z$ basis referring to the amplitude damping channel, the phase damping channel, the flip channel for every measure we investigated is equal. This property also happens in the cohering power of the phase damping channel, the depolarizing channel, and the flip channels. However, the decohering power of the depolarizing channel is independent to the reference basis, and the cohering power of the amplitude damping channel on the $x, y$ basis is different to that on the $z$ basis.
description: 11 pages, 4 figures.Because the picture is too big, this paper makes some delation. Formally submitted version is slightly different to this paper
Suicide Among Adolescents in Center Tunisia: An 18-Year Autopsy Study
Creators: name: Jedidi M
name: Mlayeh S
name: Hamila I
name: Masmoudi T
name: M, Ben Dhiab
name: Zemni M
name: Souguir MK
Publisher: name: figshare
Year: 2017
Subjects: subject: 170104 Forensic Psychology
subject: FOS: Other medical sciences

description: Background: Suicide and suicide attempts are more common among adolescents. Many factors are known to influence suicide in particular: region and culture. Adolescent suicide has been widely studied in many countries, but there are, currently, no data relating to adolescent suicide in Tunisia. Aim: The aims of this study were to describe epidemiological aspects of death related to adolescent suicide in Sousse, a city in central Tunisia. Methods: Data of forensic autopsies from 1998 to 2015 related to suicide of adolescents were retrospectively examined considering age, gender, method of death, year and risk factor. Results: 70 cases were reported with female predominance (62, 8%). The age range was from 10 to 19 and most of the suicides occurred in the 15-to-19 age group (75, 7%). Most victims were from rural zones (70%). Self-poisoning was the most used method (47, 1 %) followed by hanging (35, 7%). Hanging was the most common method used by males (17/26) and self-poisoning by females (29/44). Self-poisoning was related to pesticides in the vast majority of cases (29 cases among 33). The identified precipitating factors were chronic family problems in 51.4%, sentimental deception in 8.6%.Conclusion: This retrospective study raises concerns regarding the use of pesticides and the urgent need to provide rural areas with structures and medical equipment. This will ensure adequate suicide prevention in the region.
Equivalence of Light-Front and Covariant Quantum Electrodynamics at One Loop Level and the form of the Gauge Boson Propagator
Creators: name: Bhamre, Deepesh
name: Misra, Anuradha
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the three fundamental one loop Feynman diagrams of QED viz. vertex correction, fermion self-energy and vacuum polarization in the light-front gauge and discuss the equivalence of their standard covariant expressions with the light-front expressions obtained using light-cone time-ordered Hamiltonian perturbation theory. Although this issue has been considered by us and others previously, our emphasis in this article is on addressing the ambiguity regarding the correct form of the gauge boson propagator to be used in the light-front gauge. We generalize our earlier results and show, using an alternative method called the Asymptotic Method, how integrating over the light-front energy consistently in the covariant expression of each of the three one loop corrections leads to the propagating as well as the instantaneous diagrams of the light-front theory. In doing so, we re-establish the necessity of using the correct form of gauge boson propagator.
description: Minor changes to Introduction section, A reference added, 37 pages, 5 figures
Sound speed uncertainty in Acousto-Electric Tomography
Creators: name: Jensen, Bjørn Christian Skov
name: Knudsen, Kim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35R30, 65N21

description: The goal in acousto-electric tomography (AET) is to reconstruct an image of the unknown electric conductivity in an object from exterior electrostatic currents and voltages that are measured on the boundary of the object while the object is penetrated by propagating ultrasound waves. This problem is a coupled-physics inverse problem. Accurate knowledge of the propagating ultrasound wave is usually assumed and required, but in practice tracking the propagating wave is very hard, or potentially impossible, due inexact knowledge of the object's interior acoustic wave speed. In this work, we model uncertainty in the wave speed, and formulate a suitable reconstruction method for the power density and conductivity. We also establish theoretical error bounds, and show that the suggested approach can be understood as a regularization scheme for the inverse problem. Finally, we simulate the wave speed from a numerical breast tissue model, and computationally explore the severity of the error in the reconstructions. Our results show that with reasonable sound speed uncertainty, reliable reconstruction is possible.
description: 27 pages, 8 figures
Deuteron Coulomb Excitation in Peripheral Collisions with a Heavy Ion
Creators: name: Du, Weijie
name: Yin, Peng
name: Chen, Guangyao
name: Zhao, Xingbo
name: Vary, James P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We develop and test an ab initio time-dependent Basis Function (tBF) method to solve non-perturbative and time-dependent problems in quantum mechanics. For our test problem, we apply this method to the Coulomb excitation of the deuteron by an impinging heavy ion. In the tBF method applied to deuterium, we employ wave functions for its bound and excited states to calculate its transition probabilities and the r.m.s. radius during the scattering process. For comparison, corresponding results based on first-order perturbation theory are also provided. For the Coulomb excitation process in a weak and time-varying Coulomb field, where higher-order effects are negligible, we obtain good agreement of the results based on these two methods. The tBF method is then applied to the Coulomb excitation process with stronger external field. The higher-order effects, such as those appearing in the reorientation of the polarization of the deuteron system, are analyzed.
description: 16 pages, 6 figures
Accessory Parameters for Four-Punctured Spheres
Creators: name: Bogo, Gabriele
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: Classical Analysis and ODEs (math.CA)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30F35, 34M03, 32G15

description: We study the accessory parameter problem for four-punctured spheres from the point of view of modular forms. The value of the accessory parameter giving the uniformization is characterized as the unique zero of a system of equations. This gives an effective method to compute the uniformizing differential equation. As an application, we compute numerically and study the local expansion of the real-analytic function associating to a four-punctured sphere the value of its uniformizing parameter, and make some observations on its coefficients.
Table S4
Creators: name: Wang, Hui
Publisher: name: figshare
Year: 2022
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Supplement Table S4. Additive interactions between Lp-PLA2 genetic variants and PC (15:0/15:0), and between LPCAT genetic variants and LPC (18:0) for the risk of gestational diabetes mellitus.
Untitled Item
Creators: name: Wang, Hui
Publisher: name: figshare
Year: 2022
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Supplement Table S4. Additive interactions between Lp-PLA2 genetic variants and PC (15:0/15:0), and between LPCAT genetic variants and LPC (18:0) for the risk of gestational diabetes mellitus.
On the Usability of Probably Approximately Correct Implication Bases
Creators: name: Borchmann, Daniel
name: Hanika, Tom
name: Obiedkov, Sergei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1; I.2.6
subject: 03G10 68T27

description: We revisit the notion of probably approximately correct implication bases from the literature and present a first formulation in the language of formal concept analysis, with the goal to investigate whether such bases represent a suitable substitute for exact implication bases in practical use-cases. To this end, we quantitatively examine the behavior of probably approximately correct implication bases on artificial and real-world data sets and compare their precision and recall with respect to their corresponding exact implication bases. Using a small example, we also provide qualitative insight that implications from probably approximately correct bases can still represent meaningful knowledge from a given data set.
description: 17 pages, 8 figures; typos added, corrected x-label on graphs
A Method for the Differentiation of Single-Base and Double-Base Smokeless Powders using the Hanging Drop Technique
Creators: name: Gittings M
name: Petraco N
name: M, Roberts
Publisher: name: figshare
Year: 2017
Subjects: subject: 170104 Forensic Psychology
subject: FOS: Other medical sciences

description: Bulk smokeless gunpowder is manufactured in a large variety of shapes, sizes, and textures, many different types look similar, making it challenging to differentiate between types of powders. One chemical discriminating parameter is the presence of nitroglycerin, which often requires expensive instrumentation to be detected. By using the Hanging drop technique, whereby a sample is induced to react inside a drop hanging over it after, it is possible to differentiate between single and double-base smokeless powders. The method resulted in a successful, time effective, and non-destructive result for the detection of nitroglycerin.
Additional file 1 of Construction of competing endogenous RNA networks from paired RNA-seq data sets by pointwise mutual information
Creators: name: Lan, Chaowang
name: Peng, Hui
name: Hutvagner, Gyorgy
name: Li, Jinyan
Publisher: name: figshare
Year: 2020
Subjects: Biophysics
Molecular Biology
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified

description: Additional file 1 Comprehensive Comparison with Other Methods, Supplementary Figures and Tables.
Food Budget Shares and Elasticities in Malawi’s Prisons
Creators: name: Moloko, Hastings B.
name: Ng'ong'ola, Davis H.
name: Dzanja, Joseph
name: Chilongo, Thabie
name: Moloko, Hastings B.
name: Ng'ong'ola, Davis H.
name: Dzanja, Joseph
name: Chilongo, Thabie
Publisher: name: Unknown
Year: 2018
Subjects: subject: Financial Economics
subject: Food Security and Poverty
subject: Malawi’s prisons
subject: budget shares
subject: own-price elasticity
subject: cross-price elasticity
subject: expenditure elasticity

description: While Malawi’s per capita cereal production may be higher than her per capita cereal consumption, Malawi is a net cereal importer and thus food insecure. The food situation is much worse in Malawi’s prisons because inmates generally eat one meal per day. The general objective of this study was to determine food budget shares and elasticities for the food stuffs commonly eaten in Malawi’s prisons. Using structured questionnaires in face to face interviews, the study collected data from 1000 prisoners and 30 officers-in-charge from all prisons in the country. The data was analysed using Stata 12 and employed the quadratic almost ideal demand system (QUAIDS) model as an analytical tool. Results from the analysis showed that budget shares for maize and beans were high as reflected by the fact that 86.5 per cent of the prison food budget was spent on these two food items while 6.8 per cent was spent on meat and vegetables. Maize was inelastic while meat, beans and salt were elastic with the own-price elasticity for meat being the highest. Expenditure elasticities for maize, meat and beans, at above unity, showed that these food items were luxuries in Malawi’s prisons.
FAST-Hex -- A Morphing Hexarotor: Design, Mechanical Implementation, Control and Experimental Validation
Creators: name: Ryll, Markus
name: Bicego, Davide
name: Giurato, Mattia
name: Lovera, Marco
name: Franchi, Antonio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We present FAST-Hex, a micro aerial hexarotor platform that allows to seamlessly transit from an under-actuated to a fully-actuated configuration with only one additional control input, a motor that synchronously tilts all propellers. The FAST-Hex adapts its configuration between the more efficient but under-actuated, collinear multi-rotors and the less efficient, but full-pose-tracking, which is attained by non-collinear multi-rotors. On the basis of prior work on minimal input configurable micro aerial vehicle we mainly stress three aspects: mechanical design, motion control and experimental validation. Specifically, we present the lightweight mechanical structure of the FAST-Hex that allows it to only use one additional input to achieve configurability and full actuation in a vast state space. The motion controller receives as input any reference pose in $\mathbb{R}^3\times \mathrm{SO}(3)$ (3D position + 3D orientation). Full pose tracking is achieved if the reference pose is feasible with respect to actuator constraints. In case of unfeasibility a new feasible desired trajectory is generated online giving priority to the position tracking over the orientation tracking. Finally we present a large set of experimental results shading light on all aspects of the control and pose tracking of FAST-Hex.
Clustering of Gamma-Ray bursts through kernel principal component analysis
Creators: name: Modak, Soumita
name: Chattopadhyay, Asis Kumar
name: Chattopadhyay, Tanuka
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applications (stat.AP)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: 62P35

description: We consider the problem related to clustering of gamma-ray bursts (from "BATSE" catalogue) through kernel principal component analysis in which our proposed kernel outperforms results of other competent kernels in terms of clustering accuracy and we obtain three physically interpretable groups of gamma-ray bursts. The effectivity of the suggested kernel in combination with kernel principal component analysis in revealing natural clusters in noisy and nonlinear data while reducing the dimension of the data is also explored in two simulated data sets.
description: 30 pages, 10 figures
A Modified Theoretical Model to Predict the Thermal Interface Conductance Considering Interface Roughness
Creators: name: Zhang, Yingying
name: Ma, Dengke
name: Zang, Yi
name: Yang, Nuo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The acoustic mismatch model and the diffuse mismatch model have been widely used to predict the thermal interface conductance. However, the acoustic mismatch model (diffuse mismatch model) is based on the hypothesis of a perfectly smooth (completely disordered) interface. Here, we present a new modified model, named as the mixed mismatch model, which considers the roughness/bonding at the interface. By taking partially specular and partially diffuse transmissions into account, the mixed mismatch model can predict the thermal interface conductance with arbitrary roughness. The proportions of specular and diffuse transmission are determined by the interface roughness which is described by the interfacial density of states. It shows that the predicted results of the mixed mismatch model match well with the values of molecular dynamics simulation and experimental data.
description: 20 pages, 9 figures, 1 table
CmnRec: Sequential Recommendations with Chunk-accelerated Memory Network
Creators: name: Qu, Shilin
name: Yuan, Fajie
name: Guo, Guibing
name: Zhang, Liguang
name: Wei, Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: I.2
subject: 68Txx

description: Recently, Memory-based Neural Recommenders (MNR) have demonstrated superior predictive accuracy in the task of sequential recommendations, particularly for modeling long-term item dependencies. However, typical MNR requires complex memory access operations, i.e., both writing and reading via a controller (e.g., RNN) at every time step. Those frequent operations will dramatically increase the network training time, resulting in the difficulty in being deployed on industrial-scale recommender systems. In this paper, we present a novel general Chunk framework to accelerate MNR significantly. Specifically, our framework divides proximal information units into chunks, and performs memory access at certain time steps, whereby the number of memory operations can be greatly reduced. We investigate two ways to implement effective chunking, i.e., PEriodic Chunk (PEC) and Time-Sensitive Chunk (TSC), to preserve and recover important recurrent signals in the sequence. Since chunk-accelerated MNR models take into account more proximal information units than that from a single timestep, it can remove the influence of noise in the item sequence to a large extent, and thus improve the stability of MNR. In this way, the proposed chunk mechanism can lead to not only faster training and prediction, but even slightly better results. The experimental results on three real-world datasets (weishi, ml-10M and ml-latest) show that our chunk framework notably reduces the running time (e.g., with up to 7x for training & 10x for inference on ml-latest) of MNR, and meantime achieves competitive performance.
description: 11 pages
Fundamental photon orbits: black hole shadows and spacetime instabilities
Creators: name: Cunha, Pedro V. P.
name: Herdeiro, Carlos A. R.
name: Radu, Eugen
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The standard Black Holes (BHs) in General Relativity, as well as other ultra-compact objects (with or without an event horizon) admit planar circular photon orbits. These light rings (LRs) determine several spacetime properties. For instance, stable LRs trigger instabilities and, in spherical symmetry, (unstable) LRs completely determine BH shadows. In generic stationary, axi-symmetric spacetimes, non-planar bound photon orbits may also exist, regardless of the integrability properties of the photon motion. We suggest a classification of these fundamental photon orbits (FPOs) and, using Poincaré maps, determine a criterion for their stability. For the Kerr BH, all FPOs are unstable (similarly to its LRs) and completely determine the Kerr shadow. But in non-Kerr spacetimes, stable FPOs may also exist, even when all LRs are unstable, triggering new instabilities. We illustrate this for the case of Kerr BHs with Proca hair, wherein, moreover, qualitatively novel shadows with a cuspy edge exist, a feature that can be understood from the interplay between stable and unstable FPOs. FPOs are the natural generalisation of LRs beyond spherical symmetry and should generalise the LRs key role in different spacetime properties.
description: 5 pages, 4 figures
Technological improvement rate estimates for all technologies: Use of patent data and an extended domain description
Creators: name: Singh, Anuraag
name: Triulzi, Giorgio
name: Magee, Christopher L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Economics (econ.GN)
subject: Computers and Society (cs.CY)
subject: Physics and Society (physics.soc-ph)
subject: General Finance (q-fin.GN)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this work, we attempt to provide a comprehensive granular account of the pace of technological change. More specifically, we survey estimated yearly performance improvement rates for nearly all definable technologies for the first time. We do this by creating a correspondence of all patents within the US patent system to a set of technology domains. A technology domain is a body of patented inventions achieving the same technological function using the same knowledge and scientific principles. We obtain a set of 1757 domains using an extension of the previously defined classification overlap method (COM). These domains contain 97.14% of all patents within the entire US patent system. From the identified patent sets, we calculated the average centrality of the patents in each domain to estimate their improvement rates, following a methodology tested in prior work. The estimated improvement rates vary from a low of 1.9% per year for the Mechanical Skin treatment - Hair Removal and wrinkles domain to a high of 228.8% per year for the Network management - client-server applications domain. We developed a one-line descriptor identifying the technological function achieved and the underlying knowledge base for the largest 50, fastest 20 as well as slowest 20 of these domains, which cover more than forty percent of the patent system. In general, the rates of improvement were not a strong function of the patent set size and the fastest improving domains are predominantly software-based. We make available an online system that allows for automated searching for domains and improvement rates corresponding to any technology of interest to researchers, strategists and policy formulators.
Quantum Monte Carlo Study on the Spin-1/2 Honeycomb Heisenberg Model with Mixing Antiferromagnetic and Ferromagnetic Interactions in External Magnetic Fields
Creators: name: Huang, Yi-Zhen
name: Su, Gang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The continuous imaginary-time quantum Monte Carlo method with the worm update algorithm is applied to explore the ground state properties of the spin-1/2 Heisenberg model with antiferromagnetic (AF) coupling $J>0$ and ferromagnetic (F) coupling $J^{\prime}<0$ along zigzag and armchair directions, respectively, on honeycomb lattice. It is found that by enhancing the F coupling $J^{\prime}$ between zigzag AF chains, the system is smoothly crossover from one-dimensional zigzag spin chains to a two-dimensional magnetic ordered state. In absence of an external field, the system is in a stripe order phase. In presence of uniform and staggered fields, the uniform and staggered out-of-plane magnetizations appear while the stripe order keeps in $xy$ plane, and a second-order quantum phase transition (QPT) at a critical staggered field is observed. The critical exponents of correlation length for QPTs induced by a staggered field for the cases with $J>0$, $J^{\prime}<0$ and $J<0$, $J^{\prime}>0$ are obtained to be $ν=0.677(2)$ and $0.693(0)$, respectively, indicating that both cases belong to O(3) universality. The scaling behavior in a staggered field is analyzed, and the ground state phase diagrams in the plane of coupling ratio and staggered field are presented for two cases. The temperature dependence of susceptibility and specific heat of both systems in external magnetic fields is also discussed.
description: 9 pages, 10 figures
Magnetic MIMO Signal Processing and Optimization for Wireless Power Transfer
Creators: name: Yang, Gang
name: Moghadam, Mohammad R. Vedady
name: Zhang, Rui
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In magnetic resonant coupling (MRC) enabled multiple-input multiple-output (MIMO) wireless power transfer (WPT) systems, multiple transmitters (TXs) each with one single coil are used to enhance the efficiency of simultaneous power transfer to multiple single-coil receivers (RXs) by constructively combining their induced magnetic fields at the RXs, a technique termed "magnetic beamforming". In this paper, we study the optimal magnetic beamforming design in a multi-user MIMO MRC-WPT system. We introduce the multi-user power region that constitutes all the achievable power tuples for all RXs, subject to the given total power constraint over all TXs as well as their individual peak voltage and current constraints. We characterize each boundary point of the power region by maximizing the sum-power deliverable to all RXs subject to their minimum harvested power constraints. For the special case without the TX peak voltage and current constraints, we derive the optimal TX current allocation for the single-RX setup in closed-form as well as that for the multi-RX setup. In general, the problem is a non-convex quadratically constrained quadratic programming (QCQP), which is difficult to solve. For the case of one single RX, we show that the semidefinite relaxation (SDR) of the problem is tight. For the general case with multiple RXs, based on SDR we obtain two approximate solutions by applying time-sharing and randomization, respectively. Moreover, for practical implementation of magnetic beamforming, we propose a novel signal processing method to estimate the magnetic MIMO channel due to the mutual inductances between TXs and RXs. Numerical results show that our proposed magnetic channel estimation and adaptive beamforming schemes are practically effective, and can significantly improve the power transfer efficiency and multi-user performance trade-off in MIMO MRC-WPT systems.
description: 15 pages, 7 figures, to appear in IEEE Transactions on Signal Processing
Constraints on body mass and ecomorphological evolution in birds
Creators: name: Chan, Nicholas
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: A number of constraints have been hypothesised to have affected avian evolutionary history. Testing these hypotheses is key to understanding the causal processes behind observed patterns of diversity and disparity. Four topics on this theme are examined here. The first is that egg shell strength relative to incubator body mass limits body mass. Size variation in the giant, extinct flightless bird Genyornis newtoni is used to determine whether sexual dimorphism may have compensated for any mismatch between mass and eggshell strength in this species. Secondly, limits to leg bone scaling are tested for using quadratic regressions of leg bone measurements from 58 species of flightless birds. Comparisons with non-avian theropods are made to see whether patterns of scaling seen in birds demonstrate limits to leg bone allometry in birds. Thirdly, the evolution of leg bone proportions in 38 species of flightless birds is explored. Factor analyses are used to quantify changes in proportions from ancestral morphologies modelled on volant relatives. Multiple regressions are used to see if these changes are related to shifts in body size, the amount of time since loss of flight, and the size of the land area upon which each lineage evolved. In Chapter 4, the hypothesis of competition between Mesozoic birds and pterosaurs during the Mesozoic is investigated using multivariate analysis of functionally analogous traits. The results of these studies provide support to hypotheses of constrained leg bone allometry, with increases in femur length relative to girth being restricted, related to posture in birds and of ecological separation rather than competition between Mesozoic birds and pterosaurs. It is also shown that the evolution of the leg bones after the loss of flight is not limited by any universal selection pressures, with changes in the proportions of these bones showing no consistent patterns through avian phylogeny. Together, these studies provide new insights into the potential constraints that have affected avian evolution for the past 160 million years.
Anderson Localization for Very Strong Speckle Disorder
Creators: name: Hilke, Michael
name: Eleuch, Hichem
Publisher: name: arXiv
Year: 2017
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We evaluate the localization length of the wave (or Schroedinger) equation in the presence of a disordered speckle potential. This is relevant for experiments on cold atoms in optical speckle potentials. We focus on the limit of large disorder, where the Born approximation breaks down and derive an expression valid in the "quasi-metallic" phase at large disorder. This phase becomes strongly localized and the effective mobility edge disappears.
description: 7 pages
IgE antibody repertoire in nasal secretions of children and adults with seasonal allergic rhinitis: A molecular analysis
Creators: name: Castelli, Sveva
name: Arasi, Stefania
name: Tripodi, Salvatore
name: Villalta, Danilo
name: Martelli, Paola
name: Conte, Mariaelisabetta
name: Panetta, Valentina
name: Simonelli, Ilaria
name: Rohrbach, Alexander
name: Di Fraia, Marco
name: Sfika, Ifigenia
name: Villella, Valeria
name: Di Rienzo Businco, Andrea
name: Perna, Serena
name: Dramburg, Stephanie
name: Potapova, Ekaterina
name: Matricardi, Paolo Maria
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2019
Subjects: subject: allergen molecules
subject: allergic rhinitis
subject: diagnosis
subject: immunoglobulin E
subject: microarray
subject: nasal secretions
subject: pollen allergy
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Background: There is growing interest both in testing IgE in nasal secretions (NS) and in molecular diagnosis of seasonal allergic rhinitis (SAR). Yet, the reliability of nasal IgE detection with the newest molecular assays has never been assessed in a large cohort of pollen allergic patients. Objective: To investigate with microarray technology and compare the repertoires of specific IgE (sIgE) antibodies in NS and sera of a large population of children and adults with SAR. Methods: Nasal secretions were collected with an absorbent device (Merocel 2000®, Medtronic) and a minimal dilution procedure from 90 children and 71 adults with SAR. Total IgE (tIgE) (ImmunoCAP, Thermo Fisher Scientific (TFS)) and sIgE antibodies against 112 allergen molecules (ISAC-112, TFS) were measured in NS and serum. Results: Nasal sIgE was detectable in 68.3% of the patients. The detected nasal sIgE antibodies recognized airborne (88%), vegetable (10%), and animal food or other (<1%) allergen molecules. The prevalence and average levels of sIgE in NS and serum were highly interrelated at population level. A positive nasal sIgE antibody to a given molecule predicted the detection of the same antibody in the patient's serum with a specificity of 99.7% and a sensitivity of 40%. Conclusions: The concentration of sIgE is much lower in nasal secretions than in the serum. sIgE assays with very high analytical sensitivity and sampling methods with minimal dilution will be therefore needed to validate nasal secretions as alternative to serum in testing the sIgE repertoire.
title: Mail à Fernanda Soares Da Silva, Arnold Munnich, Jean-François Delfraissy, Françoise Barré-Sinoussi, Patrice Debré, Michel Kazatchkine et Michel Sidibe
Creators: name: Leibowitch, Jacques
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Source: http://www.calames.abes.fr/pub/ms/Calames-20193111133930933
Extracellular matrix remodelling is associated with muscle force increase in overloaded mouse plantaris muscle
Creators: name: Stantzou, Amalia
name: Relizani, Karima
name: Morales‐Gonzalez, Susanne
name: Gallen, Charles
name: Grassin, Antoine
name: Ferry, Arnaud
name: Schuelke, Markus
name: Amthor, Helge
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2020
Subjects: subject: fibrosis
subject: overload
subject: muscular dystrophy
subject: muscle force
subject: myostatin
subject: halofuginone
subject: TGF-β
subject: array-based transcriptome analysis
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Aims: Transforming growth factor-β (TGF-β) signalling is thought to contribute to the remodelling of extracellular matrix (ECM) of skeletal muscle and to functional decline in patients with muscular dystrophies. We wanted to determine the role of TGF-β-induced ECM remodelling in dystrophic muscle. Methods: We experimentally induced the pathological hallmarks of severe muscular dystrophy by mechanically overloading the plantaris muscle in mice. Furthermore, we determined the role of TGF-β signalling on dystrophic tissue modulation and on muscle function by (i) overloading myostatin knockout (Mstn−/−) mice and (ii) by additional pharmacological TGF-β inhibition via halofuginone. Results: Transcriptome analysis of overloaded muscles revealed upregulation predominantly of genes associated with ECM, inflammation and metalloproteinase activity. Histology revealed in wild-type mice signs of severe muscular dystrophy including myofibres with large variation in size and internalized myonuclei, as well as increased ECM deposition. At the same time, muscle weight had increased by 208% and muscle force by 234%. Myostatin deficiency blunted the effect of overload on muscle mass (59% increase) and force (76% increase), while having no effect on ECM deposition. Concomitant treatment with halofuginone blunted overload-induced muscle hypertrophy and muscle force increase, while reducing ECM deposition and increasing myofibre size. Conclusions: ECM remodelling is associated with an increase in muscle mass and force in overload-modelled dystrophic muscle. Lack of myostatin is not advantageous and inhibition of ECM deposition by halofuginone is disadvantageous for muscle plasticity in response to stimuli that induce dystrophic muscle.
Novel Crossover in Coupled Spin Ladders
Creators: name: Jeong, M.
name: Mayaffre, H.
name: Berthier, C.
name: Schmidiger, D.
name: Zheludev, A.
name: Horvatić, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a novel crossover behavior in the long-range-ordered phase of a prototypical spin-$1/2$ Heisenberg antiferromagnetic ladder compound $\mathrm{(C_7H_{10}N)_2CuBr_4}$. The staggered order was previously evidenced from a continuous and symmetric splitting of $^{14}$N NMR spectral lines on lowering temperature below $T_c\simeq 330$ mK, with a saturation towards $\simeq 150$ mK. Unexpectedly, the split lines begin to further separate away below $T^*\sim 100$ mK while the line width and shape remain completely invariable. This crossover behavior is further corroborated by the NMR relaxation rate $T_1^{-1}$ measurements. A very strong suppression reflecting the ordering, $T_1^{-1}\sim T^{5.5}$, observed above $T^*$, is replaced by $T_1^{-1}\sim T$ below $T^*$. These original NMR features are indicative of unconventional nature of the crossover, which may arise from a unique arrangement of the ladders into a spatially anisotropic and frustrated coupling network.
description: 5 pages, 3 figures
On the normalized power prior
Creators: name: Carvalho, Luiz Max
name: Ibrahim, Joseph G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The power prior is a popular tool for constructing informative prior distributions based on historical data. The method consists of raising the likelihood to a discounting factor in order to control the amount of information borrowed from the historical data. It is customary to perform a sensitivity analysis reporting results for a range of values of the discounting factor. However, one often wishes to assign it a prior distribution and estimate it jointly with the parameters, which in turn necessitates the computation of a normalising constant. In this paper we are concerned with how to recycle computations from a sensitivity analysis in order to approximately sample from joint posterior of the parameters and the discounting factor. We first show a few important properties of the normalising constant and then use these results to motivate a bisection-type algorithm for computing it on a fixed budget of evaluations. We give a large array of illustrations and discuss cases where the normalising constant is known in closed-form and where it is not. We show that the proposed method produces approximate posteriors that are very close to the exact distributions when those are available and also produces posteriors that cover the data-generating parameters with higher probability in the intractable case. Our results show that proper inclusion the normalising constant is crucial to the correct quantification of uncertainty and that the proposed method is an accurate and easy to implement technique to include this normalisation, being applicable to a large class of models. Key-words: Doubly-intractable; elicitation; historical data; normalisation; power prior; sensitivity analysis.
description: Code available at https://github.com/maxbiostat/propriety_power_priors
Invited Review: DNA methylation‐based classification of paediatric brain tumours
Creators: name: Perez, Eilís
name: Capper, David
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2020
Subjects: subject: epigenetics
subject: methylation
subject: molecular pathology
subject: neuropathology
subject: paediatric brain tumour
subject: tumour classification
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: DNA methylation-based machine learning algorithms represent powerful diagnostic tools that are currently emerging for several fields of tumour classification. For various reasons, paediatric brain tumours have been the main driving forces behind this rapid development and brain tumour classification tools are likely further advanced than in any other field of cancer diagnostics. In this review, we will discuss the main characteristics that were important for this rapid advance, namely the high clinical need for improvement of paediatric brain tumour diagnostics, the robustness of methylated DNA and the consequential possibility to generate high-quality molecular data from archival formalin-fixed paraffin-embedded pathology specimens, the implementation of a single array platform by most laboratories allowing data exchange and data pooling to an unprecedented extent, as well as the high suitability of the data format for machine learning. We will further discuss the four most central output qualities of DNA methylation profiling in a diagnostic setting (tumour classification, tumour sub-classification, copy number analysis and guidance for additional molecular testing) individually for the most frequent types of paediatric brain tumours. Lastly, we will discuss DNA methylation profiling as a tool for the detection of new paediatric brain tumour classes and will give an overview of the rapidly growing family of new tumours identified with the aid of this technique.
Limit theorem associated with Wishart matrices with application to hypothesis testing for common principal components
Creators: name: Tsukuda, Koji
name: Matsuura, Shun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 60F05, 62F05 (Primary) 62H25(Secondary)

description: This study derives a new property of the Wishart distribution when the degree-of-freedom and the size of the matrix parameter of the distribution grow simultaneoulsy. Particularly, the asymptotic normality of the product of four independent Wishart matrices is shown under a high dimensional asymptotic regime. As an application of the result, a statistical test procedure for the common principal components hypothesis is proposed. For this problem, the proposed test statistic is asymptotically normal under the null hypothesis. In addition, the proposed test statistic diverges to positive infinity in probability under the alternative hypothesis.
description: 27 pages. Corrected some errors. Improved presentations