cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Renormalization group for phases with broken discrete symmetry near quantum critical points
Creators: name: Jakubczyk, P.
name: Strack, P.
name: Katanin, A. A.
name: Metzner, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the Hertz-Millis theory of quantum phase transitions in itinerant electron systems to phases with broken discrete symmetry. Using a set of coupled flow equations derived within the functional renormalization group framework, we compute the second order phase transition line T_c(delta), with delta a non-thermal control parameter, near a quantum critical point. We analyze the interplay and relative importance of quantum and classical fluctuations at different energy scales, and we compare the Ginzburg temperature T_G to the transition temperature T_c, the latter being associated with a non-Gaussian fixed-point.
description: Updated version (as published)
Contrastive Cross-site Learning with Redesigned Net for COVID-19 CT Classification
Creators: name: Wang, Zhao
name: Liu, Quande
name: Dou, Qi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The pandemic of coronavirus disease 2019 (COVID-19) has lead to a global public health crisis spreading hundreds of countries. With the continuous growth of new infections, developing automated tools for COVID-19 identification with CT image is highly desired to assist the clinical diagnosis and reduce the tedious workload of image interpretation. To enlarge the datasets for developing machine learning methods, it is essentially helpful to aggregate the cases from different medical systems for learning robust and generalizable models. This paper proposes a novel joint learning framework to perform accurate COVID-19 identification by effectively learning with heterogeneous datasets with distribution discrepancy. We build a powerful backbone by redesigning the recently proposed COVID-Net in aspects of network architecture and learning strategy to improve the prediction accuracy and learning efficiency. On top of our improved backbone, we further explicitly tackle the cross-site domain shift by conducting separate feature normalization in latent space. Moreover, we propose to use a contrastive training objective to enhance the domain invariance of semantic embeddings for boosting the classification performance on each dataset. We develop and evaluate our method with two public large-scale COVID-19 diagnosis datasets made up of CT images. Extensive experiments show that our approach consistently improves the performances on both datasets, outperforming the original COVID-Net trained on each dataset by 12.16% and 14.23% in AUC respectively, also exceeding existing state-of-the-art multi-site learning methods.
description: Published as a journal paper at IEEE J-BHI; code and dataset are available at https://github.com/med-air/Contrastive-COVIDNet
Ginzburg-Landau expansion and the upper critical field in disordered attractive Hubbard model
Creators: name: Kuleeva, N. A.
name: Kuchinskii, E. Z.
name: Sadovskii, M. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a short review of our studies of disorder influence upon Ginzburg - Landau expansion coefficients in Anderson - Hubbard model with attraction in the framework of the generalized DMFT+$Σ$ approximation. A wide range of attractive potentials $U$ is considered - from weak coupling limit, where superconductivity is described by BCS model, to the limit of very strong coupling, where superconducting transition is related to Bose - Einstein condensation (BEC) of compact Cooper pairs, which are formed at temperatures significantly higher than the temperature of superconducting transition, as well as the wide range of disorders - from weak to strong, when the system is in the vicinity of Anderson transition. For the same range of parameters we study in detail the temperature behavior of orbital and paramagnetic upper critical field $H_{c2}(T)$, which demonstrates the anomalies both due to the growth of attractive potential and the effects of strong disordering.
description: 13 pages, 10 figures, a short review of the previous work. arXiv admin note: text overlap with arXiv:1702.05247, arXiv:1709.03895
ЎЗБЕКИСТОН РЕСПУБЛИКАСИ ТЕМИР ЙЎЛ ТРАНСПОРТИНИНГ РИВОЖЛАНИШ ТАРИХИ ВА ИСТИҚБОЛИ
Creators: name: Адҳам Абдуғаниевич Ниязов
name: Равшан Йўлдошевич Маҳаммадалиев
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: таранспорт тармоғи
транспорт тўри
юк ҳажми
логистика
юк айланмаси
таъминланганлик даражаси
йўловчи
иқтисодий ижтиоий фактор
транспорт йўлаги

description: Ушбу мақолада Ўзбекистонда темир йўл транспортининг тутган ўрни ва аҳамияти ҳар томонлама таҳлил этилиш билан бирга, мазкур транспорт тармоғининг вужудга келиши, шаклланиши ҳамда ривожланишига таъсир қилган омиллар қайд этилган. Шу билан бирга транспорт тармоқларида темир йўл транспортининг аҳамияти бугунги кундаги функцияси ва истиқболдаги ривожланиш босқичлари ѐритилган
Supplementary materials from Identifying signatures of the earliest benthic bulldozers in emergent subaerial conditions during the colonization of land by animals
Creators: name: Wang, Zekun
name: Davies, Neil
name: Liu, Alexander G.
name: Minter, Nicholas
name: Rahman, Imran Alexander
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 370506
subject: Palaeontology (incl. palynology)

description: The detailed explanations on the equations, simulations and validations
From Random Motion of Hamiltonian Systems to Boltzmann H Theorem and Second Law of Thermodynamics -- a Pathway by Path Probability
Creators: name: Wang, Qiuping A.
name: Kaabouchi, Aziz El
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A numerical experiment of ideal stochastic motion of a particle subject to conservative forces and Gaussian noise reveals that the path probability depends exponentially on action. This distribution implies a fundamental principle generalizing the least action principle of the Hamiltonian-Lagrangian mechanics and yields an extended formalism of mechanics for random dynamics. Within this theory, Liouville theorem of conservation of phase density distribution must be modified to allow time evolution of phase density and consequently the Boltzmann H theorem. We argue that the gap between the regular Newtonian dynamics and the random dynamics was not considered in the criticisms of the H theorem.
description: 10 pages, 1 figure
The importance of interloper removal in galaxy clusters: saving more objects for the Jeans analysis
Creators: name: Wojtak, Radoslaw
name: Lokas, Ewa L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the effect of contamination by interlopers in kinematic samples of galaxy clusters. We demonstrate that without the proper removal of interlopers the inferred parameters of the mass distribution in the cluster are strongly biased towards higher mass and lower concentration. The interlopers are removed using two procedures previously shown to work most efficiently on simulated data. One is based on using the virial mass estimator and calculating the maximum velocity available to cluster members and the other relies on the ratio of the virial and projected mass estimators. We illustrate the performance of the methods in detail using the example of A576, a cluster with a strong uniform background contamination, and compare the case of A576 to 15 other clusters with different degree of contamination. We model the velocity dispersion and kurtosis profiles obtained for the cleaned data samples of these clusters solving the Jeans equations to estimate the mass, concentration and anisotropy parameter. We present the mass-concentration relation for the total sample of 22 clusters.
description: 13 pages, 7 figures, more clusters analyzed in detail, mass-concentration relation for 22 clusters presented, accepted for publication in MNRAS
ҒЎЗА ОИЛАЛАРИНИ ЎРГАНИШ НАТИЖАЛАРИ
Creators: name: И. Ниманов
name: Г. Мирхомидов
name: У. Абдумаликов
name: Х. Эгамов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: селекция
уруғчилик
пахта
ғўза
чигит
тола
микронейр
вильвет доскасида
вариант
қайтариқ
дурагай

description: Ушбу мақолада Андижонг-35 нави хамда бир қанча оилалар ўрганилган. Нав ва оилаларнинг энг керакли қимматли хўжалик белгилари жумладан ҳосилдорлик, бир дона кўсак пахтасининг оғирлиги, тола узунлиги, тола чиқими хамда микронейр кўрсаткичлари аниқланган. Оилалар бўйича 144 оиласида тажриба ишларини давом эттириб, уни нав даражасига кўтариш мумкин деб хулоса келинган
Construction of the second-order gravitational perturbations produced by a compact object
Creators: name: Rosenthal, Eran
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Accurate calculation of the gradual inspiral motion in an extreme mass-ratio binary system, in which a compact-object inspirals towards a supermassive black-hole requires calculation of the interaction between the compact-object and the gravitational perturbations that it induces. These metric perturbations satisfy linear partial differential equations on a curved background spacetime induced by the supermassive black-hole. At the point particle limit the second-order perturbations equations have source terms that diverge as $r^{-4}$, where $r$ is the distance from the particle. This singular behavior renders the standard retarded solutions of these equations ill-defined. Here we resolve this problem and construct well-defined and physically meaningful solutions to these equations. We recently presented an outline of this resolution [E. Rosenthal, Phys. Rev. D 72, 121503 (2005)]. Here we provide the full details of this analysis. These second-order solutions are important for practical calculations: the planned gravitational-wave detector LISA requires preparation of waveform templates for the expected gravitational-waves. Construction of templates with desired accuracy for extreme mass-ratio binaries requires accurate calculation of the inspiral motion including the interaction with the second-order gravitational perturbations.
description: 30 pages
ДИНИЙ ВА ДУНЁВИЙ МАНБАЛАРДА СУВНИНГ ИНСОН ВА ТАБИАТ ОЛАМИДА ТУТГАН ЎРНИ
Creators: name: Зафар Юнусович Адилов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: инсон капитали
дунѐвий давлат
Геология қўмитаси
“эҳтиѐж доирасида”
қаноат
исрофгарчилик
сув ресурсларидан
тоза ичимлик суви
илғор технологиялар

description: Ушбу мақолада диний ва дунѐвий манбааларда сувнинг инсон ва табиат оламида тутган ўрни масаласи таҳлил қилинган бўлиб, ушбу жараѐнда экологик муносабатларга диннинг таъсири ва у ҳақидаги концепциялар ва унинг инновацион моҳияти ѐритиб берилади
Coupling dynamical and statistical mechanisms for baryonic cluster production in nucleus collisions of intermediate and high energies
Creators: name: Botvina, A. S.
name: Buyukcizmeci, N.
name: Bleicher, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Central nucleus-nucleus collisions produce many new baryons and the nuclear clusters can be formed from these species. The phenomenological coalescence models were sufficiently good for description of light nuclei yields in a very broad range of collision energies. We demonstrate that in reality the coalescence process can be considered as 1) the formation of primary diluted excited baryon clusters and 2) their following statistical decay leading to the final cold fragment production. We argue that the formation of such excited systems from the interacting baryons is a natural consequence of the nuclear interaction at subnuclear densities resulting in the nuclear liquid-gas type phase transition in finite systems. In this way one can provide a consistent interpretation of the experimental fragment yields (FOPI data) including the important collision energy dependence in relativistic ion reactions. We investigate the regularities of this new kind of fragment production, for example, their yield, isospin, and kinetic energy characteristics. A generalization of such a clusterization mechanism for hypernuclear matter is suggested. The isotope yields and particle correlations should be adequate for studying these phenomena.
description: 18 pages, 23 figures, to be submitted to Phys. Rev. C 2020
Strain Induced Anisotropic Magnetic Behaviour and Exchange Coupling Effect in Fe-SmCo$_{5}$ Permanent Magnets Generated by High Pressure Torsion
Creators: name: Weissitsch, Lukas
name: Stückler, Martin
name: Wurster, Stefan
name: Knoll, Peter
name: Krenn, Heinz
name: Pippan, Reinhard
name: Bachmaier, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: High-pressure torsion (HPT), a technique of severe plastic deformation (SPD), is shown as a promising processing method for exchange-spring magnetic materials in bulk form. Powder mixtures of Fe and SmCo$_{5}$ are consolidated and deformed by HPT exhibiting sample dimensions of several millimetres, being essential for bulky magnetic applications. The structural evolution during HPT deformation of Fe-SmCo$_{5}$ compounds at room- and elevated- temperatures of chemical compositions consisting of 87, 47, 24 and 10 wt.% Fe is studied and microstructurally analysed. Electron microscopy and synchrotron X-ray diffraction reveal a dual-phase nanostructured composite for the as-deformed samples with grain refinement after HPT deformation. SQUID magnetometry measurements show hysteresis curves of an exchange coupled nanocomposite at room temperature, while for low temperatures a decoupling of Fe and SmCo$_{5}$ is observed. Furthermore, exchange interactions between the hard- and soft-magnetic phase can explain a shift of the hysteresis curve. Strong emphasis is devoted to the correlation between the magnetic properties and the evolving nano-structure during HPT deformation, which is conducted for a 1:1 composition ratio of Fe to SmCo$_{5}$. SQUID magnetometry measurements show an increasing saturation magnetisation for increasing strain $γ$ and a maximum of the coercive field strength at a shear strain of $γ$ = 75.
Random line tessellations of the plane: statistical properties of many-sided cells
Creators: name: Hilhorst, H. J.
name: Calka, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a family of random line tessellations of the Euclidean plane introduced in a much more formal context by Hug and Schneider [Geom. Funct. Anal. 17, 156 (2007)] and described by a parameter α\geq 1. For α=1 the zero-cell (that is, the cell containing the origin) coincides with the Crofton cell of a Poisson line tessellation, and for α=2 it coincides with the typical Poisson-Voronoi cell. Let p_n(α) be the probability for the zero-cell to have n sides. By the methods of statistical mechanics we construct the asymptotic expansion of \log p_n(α) up to terms that vanish as n\to\infty. In the large-n limit the cell is shown to become circular. The circle is centered at the origin when α>1, but gets delocalized for the Crofton cell, α=1, which is a singular point of the parameter range. The large-n expansion of \log p_n(1) is therefore different from that of the general case and we show how to carry it out. As a corollary we obtain the analogous expansion for the {\it typical} n-sided cell of a Poisson line tessellation.
description: 26 pages, 3 figures
Determinants of Economic Growth in ECOWAS Countries: An Empirical Investigation
Creators: name: Sloboda, Brian W.
name: Sissoko, Yaya
name: Sloboda, Brian W.
name: Sissoko, Yaya
Publisher: name: Unknown
Year: 2020
Subjects: subject: Financial Economics
subject: Economic Growth
subject: Governance
subject: Panel Data
subject: Cointegration

description: The Economic Community of West Africa States (ECOWAS) is a regional group consisting of 15 countries which was founded 1975 with the goal to promote economic trade, national cooperation, and the creation of a monetary union throughout West Africa. This paper empirically assesses the determinants of the economic development from 1996-2016 in ECOWAS using panel unit root tests, panel cointegration tests, and the estimation of the dynamic panel data regression via the Arellano–Bond estimator and Arellano–Bover and Blundell–Bond estimator. The empirical results show total factor productivity (TFP), law, and somewhat corruption are indicative of economic growth under the Arellano–Bond estimator. Under the Arellano–Bover and Blundell–Bond estimator, the results revealed that inflation, gross domestic saving (GDS), and TFP have a significant impact on economic growth in the ECOWAS. From these empirical results, improving economic growth in ECOWAS countries improves the quality of life of people and the government of each ECOWAS country become cognizant of the benefits in the implementation of pro-growth policies. The policy implication is that the governments of the ECOWAS countries should give policy priority to promote pro-growth economic policies and enhance institutions to enable economic growth.
An upper limit to the photon fraction in cosmic rays above 10^19 eV from the Pierre Auger Observatory
Creators: name: Pierre Auger Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An upper limit of 16% (at 95% c.l.) is derived for the photon fraction in cosmic rays with energies greater than 10^19 eV, based on observations of the depth of shower maximum performed with the hybrid detector of the Pierre Auger Observatory. This is the first such limit on photons obtained by observing the fluorescence light profile of air showers. This upper limit confirms and improves on previous results from the Haverah Park and AGASA surface arrays. Additional data recorded with the Auger surface detectors for a subset of the event sample, support the conclusion that a photon origin of the observed events is not favored.
description: 31 pages, 11 figures, 2 tables. Minor changes, appendix expanded, conclusions unchanged; accepted by Astroparticle Physics
From Within to Between
Creators: name: Maranan, Diego S.
Publisher: name: Zenodo
Year: 2018

description: A growing number of researchers and artists have been using somaesthetics as an organising principle for the design and evaluation of new tools and technologies. In this presentation, I review the varieties of ways in somaesthetics have played a role in such approaches. I then describe my current research project in which I integrate theories and approaches from contemporary cognitive neuroscience and experimental psychology as a somatic practitioner, in order to develop new frameworks for somaesthetic practice and theory. This work was supported by Cog Novo (FP7-PEOPLE-2013-ITN-604764), a project funded by the EU Marie Sktodowska Curie programme. Diego Maranan is additionally associated with the Faculty of Information and Communication Studies at the University of the Philippines Open University.
ОРИЕНТАЦИОННЫЙ ЭФФЕКТ СМЕСЕВЫХ ТЕРМОПЛАСТИЧНЫХ ВОДНОДИСПЕРСИОННЫХ СОПОЛИМЕРОВ НА ЛАТЕКСНОЙ ОСНОВЕ ЭМУЛЬСИОННЫХ КАУЧУКОВ ПРИ СОЗДАНИИ ЭЛАСТОПОЛИМЕРНЫХ КЛЕЕВЫХ КОМПОЗИЦИЙ
Creators: name: Сардорбек Каримов
name: Абдусаттар Ибрагимов
name: Саодат Ходжаева
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: каучук; связующая добавка; мономер; термопласт; модификация; клеевая композиция; эмульсия; латекс; эластополимер; формование обуви.

description: Для заготовки разного рода и ассортимента обувных изделий и их комплектующих деталей все чаще находят применения широкий набор клеевых композиций с участием термопластичных (со)полимеров синтетического (искусственного) и природного (натурального) происхождения. Рассмотрены закономерности эффективных способов компаундирования синтеза кожеподобных латексов и клеевых герметик материалов на основе эмульсионных каучуков для упрочнения связей комплектующих деталей обуви при формовании готового товара. Приведены результаты физико-химических исследований полифункциональных эластополимеров с олигомерными соединениями полиолефинов путем осуществления механизмов совместной модификации в присутствии акриловых мономеров и их производных. Изучено структурообразования и строение макромолекулярных звеньев, и вероятность расположения растущих радикалов с образованием активных центров за счет распада электронов между химическими связями подвижных атомов
Gluon and ghost propagators in the Landau gauge: Deriving lattice results from Schwinger-Dyson equations
Creators: name: Aguilar, A. C.
name: Binosi, D.
name: Papavassiliou, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the application of a novel gauge invariant truncation scheme to the Schwinger-Dyson equations of QCD leads, in the Landau gauge, to an infrared finite gluon propagator and a divergent ghost propagator, in qualitative agreement with recent lattice data.
description: 9 pages, 2 figures; v3: typos corrected; v2: discussion on numerical results expanded, considerations about the Kugo-Ojima confinement criterion added
Surface Structures and Mechanical Properties of Model Fungus Aspergillus nidulans
Creators: name: Zhao, Liming
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Engineering, Chemical (0542)

description: Although a better understanding of the mechanical properties of common fungi has the potential to yield improvements in dealing with both beneficial and pathogenic fungi, few previous studies have focused on assessing these mechanical properties because of relatively small size of fungal cells. To address this challenge we have used the atomic force microscope (AFM) to study a model filamentous fungus, Aspergillus nidulans. The wild type spores were compared with spores from two isogenic rodA+ and rodA- strains. AFM images of wild type and rodA+ spores showed characteristic ""rodlet"" protein structures covering spore surfaces. In comparison, rodA- spores were rodlet free. Nanoindentation measurements showed that rodA- spores have larger values of stiffness and elastic modulus than do the wild type and rodA+ strains. We developed an AFM approach which for the first time allowed us to measure cell-wall mechanical properties of A. nidulans hyphae. Using finite element analysis to simulate AFM indentation, the elastic modulus of wild type hyphae was determined to be 110+/-10 MPa. This decreased to 64+/-4 MPa when grown under osmotic stress, implying growth medium osmotic conditions have significant effects on cell wall elasticity. We studied the effect of cell-wall degrading, enzymes on fungal hyphae. Fungal elements in the stationary phase is found to be smaller than those in the exponential phase. This likely results from increased cell-wall hydrolase activity present in the stationary phase. Real-time lyticase digestion of the cell wall gradually removes rod-shaped structures, and tends to reduce the wall rigidity. We added various amounts of rapamycin (a gratuitous inducer of autophagy) to cultures of A. nidulans. While no statistically significant difference in elastic modulus was found for the hyphae grown in low rapamycin (4 mg/L) against the control, a statistically significant difference was found for hyphae grown in high rapamycin (20 mg/L). These results imply that rapamycin leads to stiffer cell walls. We have developed a novel AFM approach to address important biological problems. The results will likely lead to insights which could improve bioprocess performance or provide novel targets or strategies for new antifungal therapeutics.
Exploiting Lagrange duality for topology optimization with frictionless unilateral contact
Creators: name: Kanno, Yoshihiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C25, 49N15, 90C11

description: This paper presents tractable reformulations of topology optimization problems of structures subject to frictionless unilateral contact conditions. Specifically, we consider stiffness maximization problems of trusses and continua. Based on the Lagrange duality theory, we derive formulations that do not involve complementarity constraints. It is often that a structural optimization problem with contact conditions is formulated as a mathematical programming problem with complementarity constraints (MPCC problem). However, MPCC usually requires special treatment for numerical solution, because it does not satisfy standard constraint qualifications. In contrast, to the formulation presented in this paper, we can apply standard optimization approaches. Numerical experiments of trusses and continua are performed to examine efficiency of the proposed approach.
Age_SupInfo_Burraco_etal_R2 from Ionizing radiation has negligible effects on the age, telomere length, and corticosterone levels of Chornobyl tree frogs
Creators: name: Burraco, Pablo
name: Gabor, Caitlin
name: Bryant, Amanda
name: Gardette, Vanessa
name: Lengagne, Thierry
name: Bonzom, Jean Marc
name: Orizaola, Germán
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310399
subject: Ecology not elsewhere classified

description: Age_SupInfo_Burraco_etal_R2.docx
Long-term evolution of the asteroid orbits at the 3:1 mean motion resonance with Jupiter (planar problem)
Creators: name: Sidorenko, Vladislav
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The 3:1 mean-motion resonance of the planar elliptic restricted three body problem (Sun-Jupiter-asteroid) is considered. The double numeric averaging is used to obtain the evolutionary equations which describe the long-term behavior of the asteroid's argument of pericentre and eccentricity. The existence of the adiabatic chaos area in the system's phase space is shown.
description: 17 pages, 20 figures
Essays on health insurance for immigrants in the United States: An examination of federal and state policies
Creators: name: Socarras, Rebecca Shawn
Publisher: name: Maryland Shared Open Access Repository
Year: 2014

description: The working–age, adult immigrant population living in the United States is often left out of health policy initiatives and consequentially is more likely to be uninsured.  In my dissertation, I provide an analysis of why immigrants are more likely to be uninsured as well as an analysis of what factors make them likely to be covered by Medicaid or private health insurance.  In the first essay, I estimate the effects of state generosity on the likelihood of an immigrant being uninsured, having Medicaid, employer–sponsored insurance (ESI) or other private health insurance (OPHI). I explore the determinants of lacking health insurance and the probability of having Medicaid, ESI or OPHI using a multinomial probit model, focusing on the variable of interest indicating whether or not a state is generous in accepting eligible, recent immigrants who have lived in the U.S. for fewer than 5 years into the Medicaid program.  In the second essay, I research the effect of residency restrictions on immigrants' health insurance coverage rates through the use of a regression discontinuity design. The Personal Responsibility and Work Opportunity Reconciliation Act (PRWORA) passed in 1996 requires eligible immigrants to live in the U.S. for five years before they can qualify for Medicaid. My research analyzes the effects of this federal policy on Medicaid rates and explores how PRWORA continues to impact immigrants and their health insurance coverage options. In the final essay, I use a difference–in–differences (DID) approach to examine how simplifying the Medicaid application/renewal process affects health insurance coverage rates for both natives and immigrants. In recent years, some states have chosen to modify the Medicaid application and/or renewal process in order to make the process easier and break down one of the many barriers to obtain Medicaid benefits. My research evaluates whether simplification policies affect potentially eligible immigrants and natives differently and analyzes the effect of these simplifications on Medicaid coverage rates and rates of ESI, OPHI and uninsurance.
Learning to Anticipate Egocentric Actions by Imagination
Creators: name: Wu, Yu
name: Zhu, Linchao
name: Wang, Xiaohan
name: Yang, Yi
name: Wu, Fei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Anticipating actions before they are executed is crucial for a wide range of practical applications, including autonomous driving and robotics. In this paper, we study the egocentric action anticipation task, which predicts future action seconds before it is performed for egocentric videos. Previous approaches focus on summarizing the observed content and directly predicting future action based on past observations. We believe it would benefit the action anticipation if we could mine some cues to compensate for the missing information of the unobserved frames. We then propose to decompose the action anticipation into a series of future feature predictions. We imagine how the visual feature changes in the near future and then predicts future action labels based on these imagined representations. Differently, our ImagineRNN is optimized in a contrastive learning way instead of feature regression. We utilize a proxy task to train the ImagineRNN, i.e., selecting the correct future states from distractors. We further improve ImagineRNN by residual anticipation, i.e., changing its target to predicting the feature difference of adjacent frames instead of the frame content. This promotes the network to focus on our target, i.e., the future action, as the difference between adjacent frame features is more important for forecasting the future. Extensive experiments on two large-scale egocentric action datasets validate the effectiveness of our method. Our method significantly outperforms previous methods on both the seen test set and the unseen test set of the EPIC Kitchens Action Anticipation Challenge.
description: Accepted to IEEE Transactions on Image Processing (TIP)
«ҲАР БИР ОИЛА – ТАДБИРКОР«» КОНЦЕПЦИЯСИ ВА УНДАГИ ИННОВАЦИОН ҒОЯЛАР (ИЖТИМОИЙ – ФАЛСАФИЙ ТАҲЛИЛ)
Creators: name: Жамшид Бекматович Давлетов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: инсон капитали
дунѐвий давлат
бозор иқтисодиѐти
«оилавий бизнес»
«оилавий тадбиркорлик»
«оилавий касаначилик»
хусусий тадбиркорлик
инновация
урбанизация
қонун устуворлиги
ижтимоий-сиѐсий тузум.

description: Ушбу мақолада «Ҳар бир оила – тадбиркор» концепцияси ва ундаги инновацион ғоялар таҳлил қилинган бўлиб, ушбу жараѐнда кичик бизнес ва тадбиркорликни кенгайтириш ва янада ривожлантириш учун бизнеснинг янги ташкилий-ҳуқуқий шакли сифатида оилавий бизнес, яъни «Ҳар бир оила – тадбиркор» концепцияси ва унинг инновацион моҳияти ѐритиб берилади
Modelling of the circulation of northern British Columbia waters
Creators: name: Jacques, Renee
Publisher: name: University of British Columbia
Year: 2009

description: A numerical model is used to improve our understanding of the mean circulation of northern British Columbia waters. The velocity field arising from tidal, wind, river runoff, and baroclinic effects is studied and the influence of the earth's rotation investigated. The model is three-dimensional, diagnostic, nonlinear through tidal forcing, and uses finite element techniques. The grid has linear horizontal triangular elements with vertical sigma levels. The model output is a linear combination of the currents obtained under the individual forcings. In this thesis, the model has been modified in order to improve the parameterization of friction processes, to add the vertical advection of tidal momentum by the tides, and to include the stratification effect on eddy viscosity. A major circulation feature is a large cyclonic eddy covering the central-eastern Dixon Entrance. This eddy, referred as the Rose Spit Eddy, is actually simulated by a combination of two or three smaller gyres, which seasonally vary in size and intensity. The modeled eddy is, in good agreement with observations, characterized by a rotation period of 3 to 40 days, depending on the season and the initial distance of the numerical particle from the center of the gyres. This eddy persists in all seasons but occasionally disappears. A disappearance occurred, consistent with current observations, in October 1984. The Learmonth Bank Gyre, an anticyclonic eddy located in western Dixon Entrance, is also simulated by the model. Baroclinicity and tidal rectification, respectively responsible for the generation of the Rose Spit Eddy and Learmonth Bank Gyre, are the dominant effects in the study region. The earth's rotation, necessary for the formation of those two eddying motions, as well as the vertical advection of tidal momentum were found to be essential to bring the current speeds closer to the observed values. The effect of stratification on the residual currents, through turbulence reduction, was found to be negligible.
Brachytrupes megacephalus
Creators: name: Simeu-Noutchom, Alain
name: Heller, Klaus-Gerhard
name: Nyobe, Philene Corinne Aude Um
name: Kekeunou, Sevilor
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Gryllidae
Brachytrupes
Brachytrupes megacephalus

description: Species Brachytrupes megacephalus (Lefebvre, 1827) (Table 2, Fig. 3)
Gryllus megacephalus Lefebvre, 1827: p. 10
Type material: Unspecified primary type, Southern Europe, Italy, Sicily
Description (Saussure 1877). Body yellow or tawny, shortly pubescent; immense head, very broad and short, flattened anteriorly, near the antennae on both carinula sides; with a shield transversely carinate above, divided by a furrow below, and transversely rugose; pronotum very short, dilated anteriorly, with yellow lateral lobes; tegmina extending beyond the abdomen, 1st chord of tegmina show from its extremity a few venules to the enveloping vein; the enveloping cell is large and reticulate, mirror more sharply angled anteriorly and its dividing vein less arched, with 2–3 main oblique veins, 1–2 weak veins, caudal wings; the 1st joint of the tarsals twice as long as the second, the third equal, the apex not emarginate beneath; femurs, tibiae, and metatarsus at the same time equal or longer; hind tibiae 4:4 or 4:5 spinous; 1st hind tarsus joint thin, compressed, serrated above.
Female: Ovipositor very short, almost rudimentary; its upper branches are styliform, with narrow bicarnate valves and dilated points.
Distribution: Italy: Sicily, Sardinia; Malta, Northern Africa: Algeria, Tunisia, Libya, Niger.
description: Published as part of Simeu-Noutchom, Alain, Heller, Klaus-Gerhard, Nyobe, Philene Corinne Aude Um & Kekeunou, Sevilor, 2023, Taxonomy review of the genus Brachytrupes (Orthoptera: Gryllidae) with the description of a new species and key to the species, pp. 373-388 in Zootaxa 5336 (3) on page 380, DOI: 10.11646/zootaxa.5336.3.4, http://zenodo.org/record/8281577
DESENVOLVIMENTO DE OBJETO EDUCACIONAL BASEADO EM REALIDADE VIRTUAL AUMENTADA PARA APLICAÇÃO NOS PROCESSOS DE ENSINO DA SINAPSE DE NEURÔNIOS NA DISCIPLINA DE BIOLOGIA
Creators: name: Lemos, Hailton David
name: Oliveira, Gustavo Gomes de
name: Silva, Raimundo Ferreira da
Publisher: name: Zenodo
Year: 2018

description: O ensino da Sinapse na disciplina Biológica é um desafio, por ser um tópico abstrato, o que geralmente causa desmotivação, desinteresse e dificuldade de assimilação por parte dos alunos. Nesse contexto, a Realidade Virtual Aumentada, pode se tornar um instrumento capaz de auxiliar no ensino deste conteúdo abstrato, melhorando a comunicação e a interação aluno-professor durante o período letivo. Como hoje é está se tornando comum o aluno fazer uso de aparatos tecnológicos em sala de aula, o professor deve aproveitar essa tecnologia disponível elaborar metodologias, e trabalhar conteúdos utilizando-os, e assim, os aparatos tecnológicos poderão deixar de ser simples entretenimento, com intervenções pedagógicas por parte dos professores. Portanto, permitir o aluno levar tabletes e celulares pra sala irá resinificar o processo ensino aprendizado em sala de aula. O objetivo deste trabalho é apresentar uma proposta utilizando a Realidade Virtual Aumentada como ferramenta aplicada no ensino de Biologia, mais precisamente, no ensino de Sinapses de Neurônios, Figura 1, e fenda sináptica.
Comparison of Cloud Security Standards &  Cloud Security control recommendation System
Creators: name: Hendre, Amit
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: Cloud computing
Cloud Security
cloud security ontology
compliance model
recommendation system
security control model

description: Cloud services are becoming an essential part of many organizations. Cloud providers have to adhere to security and privacy policies to ensure their users' data remains confidential and secure. On one end, cloud providers are implementing their own security and privacy controls. On the other hand, standards bodies like Cloud Security Alliance (CSA), International Organization for Standards (ISO), National Institute for Standards and Technology (NIST), etc. are developing broad standards for cloud security. In this paper we provide a comprehensive analysis of the cloud security standards that are being developed and how they compare with the security controls of cloud providers. Our study is mainly focused on policies about mobility of resources, identity and access management, data protection, incident response & audit and assessment. This paper will help consumer organizations with their compliance needs by evaluating the security controls and policies of cloud providers and assisting them in identifying their enterprise cloud security policies.
JORJINA HOUELLNING “QUEEN OF THE DESERT” BIOGRAFIK ASARIDA GERTRUDA BELL TIMSOLI TASVIRI
Creators: name: Manzila Nuriddinovna Habibova
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: Epistolyar janr
epistolyar asar
kundalik
maktub
syujet
obraz.

description: Maqolada Jorjina Howelning “Sahro malikasi” biografik asarining stilistik tahlili berilgan bo`lib, asardagi bosh qahramonning yorqin obrazi talqin qilingan. Shuningdek, badiiy personajlarning maktublarida Gertruda Bell timsoli yoritilishi tadqiq etilgan.
Progress Towards Characterizing the Protein Interactions Involved in Retroviral Assembly:  Implication for HIV-1 Assembly Based Inhibitors
Creators: name: Kyere, Sampson
Publisher: name: Maryland Shared Open Access Repository
Year: 2007
Subjects: Biophysics, General (0786)
Biology, Virology (0720)

description: Retroviral assembly is mediated by the Gag polyprotein comprised of the matrix (MA), capsid (CA) and nucleocapsid (NC) domains as well as spacer peptides.  During assembly, thousands of copies of the myristoylated Gag protein assemble on the host plasma membrane and through unknown Gag-Gag interactions bud to form an immature particle. Subsequent to budding, maturation begins, during which the viral protease cleaves Gag releasing its mature domains.  The matrix remains associated with the membrane, and CA condenses to enclose NC and the RNA genome.  Formation of the capsid core is critical for infectivity and represents a potential target for new HIV-1 therapeutic agents.  Towards this end, we have identified compounds that bind to an apical cleft on the capsid protein using an in silico screening method. One such agent, CAP-1, drastically reduced infectivity in vivo, with no cell toxicity, and acted only at the assembly stage of the lifecycle, consistent with a novel mechanism of inhibition.  In order to structurally understand the mechanism of inhibition, we solved the structure of the CAP-1:CA complex using a combination of NMR and X-ray crystallography.  Our combined structural studies show that CAP-1 induces a conformational change in the side chain of Phe32 of CA to adopt an exposed state, opening a deep pocket for the phenyl moiety of CAP-1 to bind, while the urea moiety forms hydrogen bonds with the carbonyl of Val59.  The unfavorable extrusion of Phe32 is balanced by the relief of main chain strain and may represent a process necessary for assembly of the virus.  ; Further knowledge of the Gag interactions critical for trafficking, assembly and maturation would allow for the rational design of other agents to further expand this new class of HIV-1 assembly inhibitors.  In solution Gag is believed to exist in a monomer-trimer equilibrium due in part to the myristyl switch mechanism.  We have therefore designed chimeric constructs using coiled-coil peptides (GCN4) to mimic assembly competent trimeric Gag constructs.  NMR structural studies of the GCN4-MA construct indicate that there is no trimeric interface and it is solely a myristate-myristate mediated interaction.  NMR structural studies of GCN4-MACA were precluded by broad linewidths possibly indicating a stronger CA trimeric interface.  These findings lay the groundwork for the future study of Gag-Gag interactions necessary for assembly and the structural based design of HIV assembly inhibitors.
On the Degenerate Multiplicity of the $sl_2$ Loop Algebra for the 6V Transfer Matrix at Roots of Unity
Creators: name: Deguchi, Tetsuo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We review the main result of cond-mat/0503564. The Hamiltonian of the XXZ spin chain and the transfer matrix of the six-vertex model has the $sl_2$ loop algebra symmetry if the $q$ parameter is given by a root of unity, $q_0^{2N}=1$, for an integer $N$. We discuss the dimensions of the degenerate eigenspace generated by a regular Bethe state in some sectors, rigorously as follows: We show that every regular Bethe ansatz eigenvector in the sectors is a highest weight vector and derive the highest weight ${\bar d}_k^{\pm}$, which leads to evaluation parameters $a_j$. If the evaluation parameters are distinct, we obtain the dimensions of the highest weight representation generated by the regular Bethe state.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Josephson Spin Current in Triplet Superconductor Junctions
Creators: name: Asano, Yasuhiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: This paper theoretically discusses the spin current in spin-triplet superconductor / insulator / spin-triplet superconductor junctions. At low temperatures, a midgap Andreev resonant state anomalously enhances not only the charge current but also the spin current. The coupling between the Cooper pairs and the electromagnetic fields leads to the Frounhofer pattern in the direct current spin flow in magnetic fields and the alternative spin current under applied bias-voltages.
description: 4 pages, 2 figures
ГЕОГРАФИЯ ФАНИНИ ЎҚИТИШДА МОДУЛЛИ ТАЪЛИМ ТЕХНОЛОГИЯСИ
Creators: name: Гулчеҳра Абдуллаевна Ешимбетова
name: Равшан Йўлдошевич Маҳаммадалиев
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: модул
модулли таълим технологияси
модулли ўқитиш мақсадлари
модулли ўқитишни назарий таҳлил қилиш
модулли ўқитиш назарияси

description: Ушбу мақоламнинг мақоламнинг мақсади шундан иборатки, ҳозирги вақтда таълим жараѐнида ўқитишнинг замонавий методалари кенг қўлланилмоқда Ўқитишнинг замонавий методларини қўллаш ўқитиш жараѐнида юқори самарадорликка эришишга олиб келади. Анъанавий дарс шаклини сақлаб қолган ҳолда уни таълим олувчилар фаолиятини фаоллаштирадиган турли-туман методлар билан бойитиш таълим олувчиларнинг ўзлаштириш даражаси ўсишига олиб келади. География фанини ўқитишда модулли таълим технологиясидан фойдаланиб дарсларни ташкил этиш юқори самарадорликка эришилади. Модулнинг максади ва вазифалари “Олий таълимда география фанларини укитиш методикаси” модулининг мақсади: педагог кадрларнинг ўқув-тарбиявий жараѐнларни юксак илмий-методик даражада таъминлашлари учун зарур бўладиган касбий билим, кўникма ва малакаларини мунтазам янгилаш, малака талаблари, ўқув режа ва дастурлари асосида уларнинг касбий компетентлиги ва педагогик маҳоратини доимий ривожланишини таъминлашдан иборат
CzeV1731: The unique doubly eclipsing quadruple system
Creators: name: Zasche, P.
name: Henzl, Z.
name: Lehmann, H.
name: Pepper, J.
name: Powell, B. P.
name: Kostov, V. B.
name: Barclay, T.
name: Wolf, M.
name: Kucakova, H.
name: Uhlar, R.
name: Masek, M.
name: Palafouta, S.
name: Gazeas, K.
name: Stassun, K. G.
name: Gaudi, B. S.
name: Rodriguez, J. E.
name: Stevens, D. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of the relatively bright (V = 10.5 mag), doubly eclipsing 2+2 quadruple system CzeV1731. This is the third known system of its kind, in which the masses are determined for all four stars and both the inner and outer orbits are characterized. The inner eclipsing binaries are well-detached systems moving on circular orbits: pair A with period PA = 4.10843 d and pair B with PB = 4.67552 d. The inner binaries contain very similar components (q = 1.0), making the whole system a so-called double twin. The stars in pair B have slightly larger luminosities and masses and pair A shows deeper eclipses. All four components are main-sequence stars of F/G spectral type. The mutual orbit of the two pairs around the system barycenter has a period of about 34 yr and an eccentricity of about 0.38. However, further observations are needed to reveal the overall architecture of the whole system, including the mutual inclinations of all orbits. This is a promising target for interferometry to detect the double at about 59 mas and dMbol < 1 mag. (The RV and ETV data available via CDS)
description: 5 pages, 6 figures, 2 Tables, published in: 2020A&A...642A..63Z
ИНВЕСТИЦИЯ ФАОЛИЯТИНИ МОЛИЯЛАШТИРИША ХАЛҚАРО МОЛИЯ ИНСТИТУТЛАРИНИНГ АҲАМИЯТИ
Creators: name: И. Б. Жумаев
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: халқаро молия институтлари
инвестиция фаолияти
молиялаштириш
инвестиция
хорижий инвестициялар
Жаҳон банки гуруҳи
Халқаро тикланиш ва тараққиѐт банки
Осиѐ тараққиѐт банки
Ислом тараққиѐт банки

description: Ушбу мақолада инвестиция фаолиятини молиялаштиришда халқаро молия институтларининг аҳамиятини оширишни такомиллаштиш масалаларининг ўзига хос хусусиятлари бўйича ўрганишлар асосидаги муҳокама қилинган. Муҳокама натижасида, ҳозирги вақтга келиб, халқаро молия инситутларининг аъзо-мамлакатлари ривожланишидаги ўрни тўгрисида атрофлича хулоса келтирилган