cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
GRAU DE MODERNIZACAO DO SETOR AGROPECUARIO NA REGIAO NORTE DO BRASIL
Creators: name: Santos, Jair Carvalho Dos
name: Santos, Cristiane Marcia
name: De Lima, Joao Eustaquio
name: Santos, Jair Carvalho Dos
name: Santos, Cristiane Marcia
name: De Lima, Joao Eustaquio
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Modernização agropecuária
subject: análise multivariada
subject: análise fatorial
subject: cluster
subject: Amazônia.

description: O objetivo deste estudo foi identificar o grau de modernização do setor agropecuário nas microrregiões homogêneas da Região Norte do Brasil e classificá-las. Foi utilizada a técnica multivariada de análise fatorial aplicada a um conjunto de indicadores relacionados ao emprego de insumos modernos, para identificação dos fatores de modernização, e também a técnica de análise de cluster e a construção de um índice de multicausas para classificação das microrregiões em cinco agrupamentos ou classes de intensidade de modernização. Os resultados demonstraram a predominância do baixo grau de modernização, exceto em algumas regiões próximas à Belém, capital do Estado do Pará, e à Manaus, capital do Estado do Amazonas. O índice de modernização construído mostrou-se consistente para ordenar as microrregiões.
Nonclassicality of Thermal Radiation
Creators: name: Johansen, Lars M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is demonstrated that thermal radiation of small occupation number is strongly nonclassical. This includes most forms of naturally occurring radiation. Nonclassicality can be observed as a negative weak value of a positive observable. It is related to negative values of the Margenau-Hill quasi-probability distribution.
description: 3 pages, 3 figures
Possible role of warming on Indian summer monsoon precipitation over the north-central Indian subcontinent
Creators: name: Sayak Basu
name: Sarthak Mohanty
name: Sanyal, Prasanta
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Broad disagreement between modelled and observed trends of Indian summer monsoon (ISM) over the north-central part of the Indian subcontinent (NCI) implies a gap in understanding of the relationship between the forcing factors and monsoonal precipitation. Although the strength of the land–sea thermal gradient (LSG) is believed to dictate monsoon intensity, its state and fate under continuous warming over the Bay of Bengal (BoB) and part of the NCI (23–28°N, 80–95°E) are less explored. Precipitation (1901–2017) and temperature data (1948–2017) at different vertical heights are used to understand the impact of warming in the ISM. In NCI, surface air temperature increased by 0.1–0.2°C decade−1, comparable to the global warming rate. The ISM precipitation prominently weakened and seasonality reduced after 1950, which is caused by a decrease in the LSG at the depth of the troposphere. Warming-induced increase in local convection over the BoB further reduced ISM precipitation over NCI.
Additional file 3 of A comparative study of dementia knowledge, attitudes and care approach among Chinese nursing and medical students
Creators: name: Wang, Yao
name: Xiao, Lily Dongxia
name: Huang, Rong
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 3.
Kink movement on a periodic background
Creators: name: Dobrowolski, Tomasz
name: Gatlik, Jacek
name: Kevrekidis, Panayotis G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The behavior of the kink in the sine-Gordon (sG) model in the presence of periodic inhomogeneity is studied. An ansatz is proposed that allows for the construction of a reliable effective model with two degrees of freedom. Effective models with excellent agreement with the original field-theoretic partial differential equation are constructed, including in the non-perturbative region and for relativistic velocities. The numerical solutions of the sG model describing the evolution of the kink in the presence of a barrier as well as in the case of a periodic heterogeneity under the potential additional influence of a switched bias current and/or dissipation were obtained. The results of the field equation and the effective models were compared. The effect of the choice of initial conditions in the field model on the agreement of the results with the effective model is discussed.
description: 23 pages, 18 figures
Curvature effects on the surface thickness and tension at the free interface of $^4$He systems
Creators: name: Szybisz, Leszek
name: Urrutia, Ignacio
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The thickness $W$ and the surface energy $σ_A$ at the free interface of superfluid $^4$He are studied. Results of calculations carried out by using density functionals for cylindrical and spherical systems are presented in a unified way, including a comparison with the behavior of planar slabs. It is found that for large species $W$ is independent of the geometry. The obtained values of $W$ are compared with prior theoretical results and experimental data. Experimental data favor results evaluated by adopting finite range approaches. The behavior of $σ_A$ and $W σ_A$ exhibit overshoots similar to that found previously for the central density, the trend of these observables towards their asymptotic values is examined.
description: 35 pages, TeX, 5 figures, definitive version
Multicriticality in a one-dimensional topological band insulator
Creators: name: Malard, Mariana
name: Brandao, David
name: de Brito, Paulo Eduardo
name: Johannesson, Henrik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A central tenet in the theory of quantum phase transitions (QPTs) is that a nonanalyticity in the ground-state energy in the thermodynamic limit implies a QPT. Here we report on a finding that challenges this assertion. As a case study we take a phase diagram of a one-dimensional band insulator with spin-orbit coupled electrons, supporting trivial and topological gapped phases separated by intersecting critical surfaces. The intersections define multicritical lines across which the ground-state energy becomes nonanalytical, concurrent with a closing of the band gap, but with no phase transition taking place.
description: 9 pages, 7 figures; published version, results unchanged; references added
Water Sorption and Solubility of Light-Cured Dental Composites Prepared from Two Different Types of Matrix Monomers
Creators: name: Oleiwi, Jawad K.
Publisher: name: figshare
Year: 2021
Subjects: subject: 90301 Biomaterials
subject: FOS: Medical engineering
subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: Two groups of resins reinforced by different ratios of nano-hydroxyapatite wereused to produce the novel dental composite, with the main purpose of measuring the watersorption (WS) and solubility (SO) of the prepared nanocomposites. Ten experimentalspecimens were prepared in disk-shaped with and without filler materials, in two groups, eachgroup was classified according to filler contents (0, 1, 2, 3, and 4) wt. % of nanohydroxyapatite.Each specimen was stored for 7 days in water, proceeding to measure the massof each specimen. After drying process, the specimen masses were determined. Then WS andSO were calculated from these determinations. The results showed that values of watersorption after 1 week for group A composite and group B composite ranged (9.66 to13.07mg/mm3) and (5.11 to 8.52) mg/mm3, respectively, while solubility was (2.97 to 3.25) mg/mm3for group A and (1.83 to 2.26 mg/mm3)for the composites specimens of group B, respectively.For composite with different filler contents the results showed a high filler contents of 4% foreach group with high value of water sorption (WS) and solubility (SO). It could be concludedthat the percentage of sorption and solubility of composite based on acrylic and amide weresignificantly lower than that based on acrylate
Additional file 4: of A mixed-methods approach to understanding partnership experiences and outcomes of projects from an integrated knowledge translation funding model in rehabilitation
Creators: name: Roberge-Dao, Jacqueline
name: Yardley, Brooks
name: Menon, Anita
name: Halle, Marie-Christine
name: Maman, Julia
name: Ahmed, Sara
name: Thomas, Aliki
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: Example of interpretive description coding and analysis, this document presents an example of the early coding process and the iterative reflections during analysis (DOCX 16 kb)
Correlation Exponent and Anomalously Localized States at the Critical Point of the Anderson Transition
Creators: name: Obuse, H.
name: Yakubo, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the box-measure correlation function of quantum states at the Anderson transition point with taking care of anomalously localized states (ALS). By eliminating ALS from the ensemble of critical wavefunctions, we confirm, for the first time, the scaling relation z(q)=d+2tau(q)-tau(2q) for a wide range of q, where q is the order of box-measure moments and z(q) and tau(q) are the correlation and the mass exponents, respectively. The influence of ALS to the calculation of z(q) is also discussed.
description: 6 pages, 3 figures
ESTIMATIVA DE CUSTO DE COLETA E RENTABILIDADE PARA SISTEMA EXTRATIVO DE LATEX DE SERINGUEIRA NA AMAZONIA
Creators: name: Santos, Jair Carvalho Dos
name: Santos, Jair Carvalho Dos
Publisher: name: Unknown
Year: 2006
Subjects: subject: Financial Economics
subject: Labor and Human Capital
subject: extrativismo
subject: latex
subject: borracha
subject: Acre
subject: Amazonia

description: São escassos os conhecimentos relativo ao desempenho econômico dos sistemas de produção extrativistas, que podem oferecer subsídios a políticas públicas para o setor. Este trabalho teve como objetivo apresentar uma estimativa dos custos de produção para extração de látex de seringueira (Hevea brasiliensis), safra 2001/2002, no estado do Acre. A metodologia utilizada foi a análise de rentabilidade com base na propriação dos custos de oportunidade dos recursos empregados, determinando-se os custos, resultado líquido e remuneração ã mão-de-obra familiar empregada pelas famílias extrativistas. Para o período analisado, o sistema apresentou rentabilidade muito negativa, com as receitas totais, que incuia subvenção pelo estado, representando apenas cerca de 35% dos custos finais. A remuneração à mão-de-obra familiar proporcionada pelo sistema representou cerca de 28% do valor praticado no mercado no período. Os resultados mostram, ainda, que a subvenção oferecida pelo poder público foi insuficiente para proporcionar uma remuneração mínima aos produtores, e indicam a necessidade de maior apoio à essa atividade.
Magnetic phase diagram of the three-dimensional doped Hubbard model
Creators: name: Rampon, Liam
name: Šimkovic, Fedor
name: Ferrero, Michel
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We establish the phase diagram of the Hubbard model on a cubic lattice for a wide range of temperatures, dopings and interaction strengths, considering both commensurate and incommensurate magnetic orders. We use the dynamical mean-field theory together with an efficient method to compute the free energy which enable the determination of the correct ordering vectors. Besides an antiferromagnetic state close to half-filling, we identify a number of different magnetic spiral phases with ordering vectors $(q,π,π)$, $(q,q,π)$ and $(q,q,q)$ as well as a region with close competition between them, hinting at spatial phase separation or at the onset of a stripe phase. Additionally, we extensively study several thermodynamic properties with direct relevance to cold-atom experiments: the entropy, energy and double-occupancy.
Neutrinos from the Big Bang
Creators: name: Sarkar, Subir
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The standard Big Bang cosmology predicts the existence of an, as yet undetected, relic neutrino background, similar to the photons observed in the cosmic microwave background. If neutrinos have mass, then such relic neutrinos are a natural candidate for the dark matter of the universe, and indeed were the first particles to be proposed for this role. This possibility has however been increasingly constrained by cosmological considerations, particularly of large-scale structure formation, thus yielding stringent bounds on neutrino masses, which have yet to be matched by laboratory experiments. Another probe of relic neutrinos is primordial nucleosynthesis which is sensitive to the number of neutrino types (including possible sterile species) as well to any lepton asymmetry. Combining such arguments with the experimental finding that neutrino mixing angles are large, excludes the possibility of a large asymmetry and disfavours new neutrinos beyond those now known.
description: Invited contribution for a special issue of the Proceedings of the Indian National Academy of Sciences, 20 pages, 5 figures (LaTeX); revised to include discussion of other post-WMAP papers
Coupled-channel approach in hadron-hadron scattering
Creators: name: Oller, J. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Coupled-channel dynamics for scattering and production processes in partial-wave amplitudes is discussed from a perspective that emphasizes unitarity and analyticity. We elaborate on several methods that have driven to important results in hadron physics, either by themselves or in conjunction with effective field theory. We also develop and compare with the use of the Lippmann-Schwinger equation in near-threshold scattering. The final(initial)-state interactions are discussed in detail for the elastic and coupled-channel case. Emphasis has been put in the derivation and discussion of the methods presented, with some applications examined as important examples of their usage.
description: 104 pages, 9 figures. Invited review article for Prog. Part. Nucl. Phys
A single exposure to eucalyptus smoke sensitizes rats to the postprandial cardiovascular effects of a high carbohydrate oral load
Creators: name: Martin, Brandi L.
name: Thompson, Leslie C.
name: Kim, Yong Ho
name: Snow, Samantha J.
name: Schladweiler, Mette C.
name: Phillips, Pamela
name: Harmon, Molly
name: King, Charly
name: Richards, Judy
name: George, Ingrid
name: W. Kyle Martin
name: Haykal-Coates, Najwa
name: M. Ian Gilmour
name: Kodavanti, Urmila P.
name: Hazari, Mehdi S.
name: Aimen K. Farraj
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Previous studies have shown that air pollution exposure primes the body to heightened responses to everyday stressors of the cardiovascular system. The purpose of this study was to examine the utility of postprandial responses to a high carbohydrate oral load, a cardiometabolic stressor long used to predict cardiovascular risk, in assessing the impacts of exposure to eucalyptus smoke (ES), a contributor to wildland fire air pollution in the Western coast of the United States. Three-month-old male Sprague Dawley rats were exposed once (1 h) to filtered air (FA) or ES (700 µg/m3 fine particulate matter), generated by burning eucalyptus in a tube furnace. Rats were then fasted for six hours the following morning, and subsequently administered an oral gavage of either water or a HC suspension (70 kcal% from carbohydrate), mimicking a HC meal. Two hours post gavage, cardiovascular ultrasound, cardiac pressure–volume (PV), and baroreceptor sensitivity assessments were made, and pulmonary and systemic markers assessed. ES inhalation alone increased serum interleukin (IL)-4 and nasal airway levels of gamma glutamyl transferase. HC gavage alone increased blood glucose, blood pressure, and serum IL-6 and IL-13 compared to water vehicle. By contrast, only ES-exposed and HC-challenged animals had increased PV loop measures of cardiac output, ejection fraction %, dP/dtmax, dP/dtmin, and stroke work compared to ES exposure alone and/or HC challenge alone. Exposure to a model wildfire air pollution source modifies cardiovascular responses to HC challenge, suggesting air pollution sensitizes the body to systemic triggers.
Macroscopic detection of the strong stochasticity threshold in Fermi-Pasta-Ulam chains of oscillators
Creators: name: Romero-Bastida, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The largest Lyapunov exponent of a system composed by a heavy impurity embedded in a chain of anharmonic nearest-neighbor Fermi-Pasta-Ulam oscillators is numerically computed for various values of the impurity mass $M$. A crossover between weak and strong chaos is obtained at the same value $ε_{_T}$ of the energy density $ε$ (energy per degree of freedom) for all the considered values of the impurity mass $M$. The threshold $\epsi lon_{_T}$ coincides with the value of the energy density $ε$ at which a change of scaling of the relaxation time of the momentum autocorrelation function of the impurity ocurrs and that was obtained in a previous work ~[M. Romero-Bastida and E. Braun, Phys. Rev. E {\bf65}, 036228 (2002)]. The complete Lyapunov spectrum does not depend significantly on the impurity mass $M$. These results suggest that the impurity does not contribute significantly to the dynamical instability (chaos) of the chain and can be considered as a probe for the dynamics of the system to which the impurity is coupled. Finally, it is shown that the Kolmogorov-Sinai entropy of the chain has a crossover from weak to strong chaos at the same value of the energy density that the crossover value $ε_{_T}$ of largest Lyapunov exponent. Implications of this result are discussed.
description: 6 pages, 5 figures, revtex4 style
title: Transcription d'un entretien auprès d’une mère ayant accouché de son premier enfant à la maternité de German Urquidi dans la ville de Cochabamba en Bolivie
Creators: name: Geffroy, Céline
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017

description: Source: T-4923
description: La première partie de l’entretien n’ayant pas été enregistrée, la discussion démarre sur la formation du premier lait, le colostrum, dans le corps. La mère parle de cette première montée de lait qu’elle ressent comme un fleuve qui coule dans ses veines une sensation douloureuse de descente qui part des épaules. Elle décrit le colostrum comme étant jaunâtre et plus épais que le lait. Elle répond ensuite à l'enquêtrice qui lui demande quels effets avait l’allaitement sur les seins et la mère parle de la ptôse mammaire lorsque l’allaitement se termine. Elle cite les plats qu’il faut consommer pour faire monter le lait comme le bouillon de mouton, ou d’autre viande avec un peu de riz, de légumes et des pommes de terres déshydratées. Elle pense qu’il faut manger de préférence des plats assez liquides car elle croit que cela a une action bénéfique sur le lait. Elle déclare que malgré la douleur des crevasses elle n'arrêtera pas l’allaitement car c’est bon pour le bébé. Concernant la question sur la formation du premier lait, la mère croit que c’est en fonction des aliments qu’elle a consommés que le colostrum arrive. Elle décrit celui-ci comme ayant un aspect jaune et assez épais, ne l’a pas goûté mais sait que c’est nécessaire de le donner à son enfant. En ce qui concerne le premier contact de l’enfant avec sa mère, il ne s’est fait qu’après avoir été lavé et habillé mais la mère explique que la sensation forte de tenir son enfant lui a déclenché une montée de lait. L'enquêtrice pose ensuite des questions sur les relations sexuelles du couple pendant et après la grossesse. La mère dit s'être préparée à l’allaitement par des massages aux seins.
Gentianales
Creators: name: Peruzzi, Lorenzo
name: Conti, Fabio
name: Bartolucci, Fabrizio
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales

description: Gentianales  Apocynaceae
 Vinca difformis Pourr. subsp. sardoa Stearn SAR
Gentianaceae
 Gentiana brentae Prosser & Bertolli
NE Italy (TAA)
 Gentiana froelichii Jan subsp. zenariae F.Martini & Poldini
NE Italy (VEN, FVG)
 Gentianella columnae (Ten.) Holub
C Italian peninsula (MAR, UMB, LAZ, ABR, MOL); S Italian peninsula (CAM, BAS, CAL)
Rubiaceae
 Asperula apuana (Fiori) Arrigoni
N Italian peninsula (TOS)
 Asperula calabra (Fiori) Gavioli
S Italian peninsula (CAL)
 Asperula crassifolia L.
S Italian peninsula (CAM)
 Asperula cynanchica L. subsp. neglecta (Guss.) Arcang.
C Italian peninsula (MAR, UMB doubtful, LAZ, ABR, MOL)
 Asperula deficiens Viv.
SAR
 Asperula garganica Huter, Porta & Rigo ex Ehrend. & Krendl
S Italian peninsula (PUG)
 Asperula gussonei Boiss.
SIC
 Asperula lactea (Huter, Porta & Rigo) Brullo, Gargano, N.G.Passal. & Peruzzi
S Italian peninsula (CAL)
 Asperula peloritana C.Brullo, Brullo, Giusso & Scuderi
SIC
 Asperula pumila Moris
SAR
 Asperula rupestris Tineo
SIC
 Asperula staliana Vis. subsp. diomedea Korica, Lausi & Ehrend.
S Italian peninsula (PUG)
 48 Phytotaxa 168 (1) © 2014 Magnolia Press
 PERUZZI ET AL.
 Galium aetnicum Biv.
SIC
 Galium baldense Spreng.
NE Italy (LOM, TAA, VEN, FVG)
 Galium caprarium Natali
N Italian peninsula (TOS); (Corsica)
 Galium corsicum Spreng.
SAR (Corsica)
 Galium glaucophyllum Em.Schmid
SAR
 Galium litorale Guss.
SIC
 Galium lucidum All. subsp. venustum (Jord.) Arcang.
 C Italian peninsula (ABR); S Italian peninsula (CAM, BAS, CAL); SIC (Corsica) Galium magellense Ten.
 C Italian peninsula (MAR, UMB, LAZ, ABR, MOL); S Italian peninsula (CAM, CAL) Galium margaritaceum A.Kern.
NE Italy (TAA, VEN, FVG)
 Galium montis-arerae Merxm. & Ehrend.
NE Italy (LOM)
 Galium palaeoitalicum Ehrend.
N Italian peninsula (TOS); S Italian peninsula (CAM, BAS, CAL)
 Galium pallidum C.Presl
 C Italian peninsula (LAZ, ABR); S Italian peninsula (BAS, CAL doubtful); SIC Galium schmidii Arrigoni
SAR
 Galium verrucosum Huds. subsp. halophilum (Ponzo) Lambinon
N Italian peninsula (TOS); SIC; SAR (Corsica)
 Valantia calva Brullo
SIC
 Valantia deltoidea Brullo
S Italian peninsula (PUG); SIC
description: Published as part of Peruzzi, Lorenzo, Conti, Fabio & Bartolucci, Fabrizio, 2014, An inventory of vascular plants endemic to Italy, pp. 1-75 in Phytotaxa 168 (1) on pages 48-49, DOI: 10.11646/phytotaxa.168.1.1, http://zenodo.org/record/10089750
Exploring the Key Features of Repeating Fast Radio Bursts with Machine Learning
Creators: name: Sun, Wan-Peng
name: Zhang, Ji-Guo
name: Li, Yichao
name: Hou, Wan-Ting
name: Zhang, Fu-Wen
name: Zhang, Jing-Fei
name: Zhang, Xin
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Fast radio bursts (FRBs) are enigmatic high-energy events with unknown origins, which are observationally divided into two categories, i.e., repeaters and non-repeaters. However, there are potentially a number of non-repeaters that may be misclassified, as repeating bursts are missed due to the limited sensitivity and observation periods, thus misleading the investigation of their physical properties. In this work, we propose a repeater identification method based on the t-distributed Stochastic Neighbor Embedding (t-SNE) algorithm and apply the classification to the first Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) catalog. We find that the spectral morphology parameters, specifically spectral running ($r$), represent the key features for identifying repeaters from the non-repeaters. Also, the results suggest that repeaters are more biased towards narrowband emission, whereas non-repeaters are inclined toward broadband emission. We provide a list of 163 repeater candidates, 5 of which are confirmed with an updated repeater catalog from CHIME/FRB. Our findings improve our understanding of the various properties underlying repeaters and non-repeaters, as well as guidelines for future FRB detection and categorization.
description: 19 pages, 10 figures
A novel non-enzymatic amperometric H2O2 sensor based on screen-printed electrode modified with reduced graphene oxide, polyneutralred and gold nanoparticles
Creators: name: Kamac, Melike Bilgi
name: Onat, Eda Kiymaz
name: Yilmaz, Merve
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: A non-enzymatic amperometric sensor for hydrogen peroxide (H2O2) was developed based on the screen-printed electrode (SPCE) modified with reduced graphene oxide (RGO), polyneutral red (PNR) and gold nanoparticles (AuNP). Electrochemical behaviour of hydrogen peroxide on SPCE/RGO/PNR/AuNP was investigated. The prepared sensor showed a high electrocatalytic effect on the reduction of hydrogen peroxide. The non-enzymatic sensor response for H2O2 was investigated as a function of pH and working potential. Optimum values of these parameters in the H2O2 determination were found as 7.0 for pH and −0.45 V for working potential. Amperometry was used successfully for the determination of H2O2 in the linear response range from 21.16 to 2730 μM with a detection limit of 6.35 μM. The relative standard deviation (RSD) was calculated to be 1.70% (for n = 10). The operational stability studies have shown that the initial amperometric response of the sensor to H2O2 decreased by 60.82% on the 60th day. Storage life studies have shown that the sensitivity of the sensor decreased by 40.31% at the end of 12 weeks. The non-enzymatic sensor has been tested for H2O2 determination in human serum sample. The developed H2O2 sensor is promising to be used for H2O2 analysis in human serum samples as simple, practical and disposable device without requiring laborious sample pre-treatment producers.
Investigating radiation damage in nuclear energy materials using JANNuS multiple ion beams
Creators: name: Gentils, A.
name: Cabet, C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Ion accelerators have been used by material scientists for decades to investigate radiation damage formation in nuclear materials and thus to emulate neutron-induced changes. The versatility of conditions in terms of particle energy, dose rate, fluence, etc., is a key asset of ion beams allowing for fully instrumented analytical studies. In addition, very short irradiation times and handling of non-radioactive samples dramatically curtail the global cost and duration as compared to in-reactor testing. Coupling of two or more beams, use of heated/cooled sample holders, and implementation of in situ characterization and microscopy pave the way to real time observation of microstructural and property evolution in various extreme radiation conditions more closely mimicking the nuclear environments. For these reasons, multiple ion beam facilities have been commissioned worldwide. In France, under the auspices of the Universit{é} Paris-Saclay, the JANNuS platform for 'Joint Accelerators for Nanosciences and Nuclear Simulation' comprises five ion implanter and electrostatic accelerators with complementary performances. At CSNSM (CNRS \& Univ Paris-Sud, Orsay), a 200 kV Transmission Electron Microscope is coupled to an accelerator and an implanter for in situ observation of microstructure modifications induced by ion beams in a material, making important contribution to the understanding of physical phenomena at the nanoscale. At CEA Paris-Saclay, the unique triple beam facility in Europe allows the simultaneous irradiation with heavy ions (like Fe, W) for nuclear recoil damage and implantation of a large array of ions including gasses for well-controlled modelling-oriented experiments. Several classes of materials are of interest for the nuclear industry ranging from metals and alloys, to oxides or glasses and carbides. This paper gives selected examples that illustrate the use of JANNuS ion beams in investigating the radiation resistance of structural materials for today's and tomorrow's nuclear reactors.
Unification of Gauge, Higgs and Matter in Extra Dimensions
Creators: name: Gogoladze, Ilia
name: Mimura, Yukihiro
name: Nandi, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the unification of gauge, Higgs as well as the matter fields in a 6D N=2 supersymmetric SU(8) gauge theory. The gauge symmetry SU(8) is broken down to SU(4) x SU(2)_L x SU(2)_R x U(1)^2 in 4D through T^2/Z_6 orbifold compactification, and the theory is reduced to 4D N=1 supersymmetric Pati-Salam model. The electroweak Higgs fields as well as the third family of fermions are unified in the 6D N=2 gauge multiplet. The 6D bulk gauge interaction provides both gauge and Yukawa interactions for the third family predicting α_1 = α_2 = α_3 = α_t = α_b = α_tau at the unification scale, in good agreement with experiment. Incorporation of the first and second family as well as other orbifolds are also briefly discussed.
description: 13 pages and 1 figure, some minor corrections and references added
Hamiltonian normal forms for the post-Newtonian binary problem
Creators: name: Aykroyd, Christopher
name: Bourgoin, Adrien
name: Poncin-Lafitte, Christophe Le
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We revisit the dynamics of the post-Newtonian (PN) two-body problem for two inspiraling compact bodies. Starting from a matter-only reduced Hamiltonian, we present an adapted framework based on the Lie series approach, enabling the derivation of complete perturbative solutions within the conservative sector. Our framework supports both circular and eccentric orbits, and is applicable to any perturbation respecting rotational invariance and time-independence. In the context of the Arnowitt-Deser-Misner (ADM) canonical formalism, this includes up to at least 3PN order and local terms beyond. We provide an example application at 2PN, recovering classical periapsis advance and orbital period corrections, alongside the full orbital evolution in time coordinates. We discuss eventual extension to spinning and time-dependent systems.
description: 16 pages, 2 figures
Triple decomposition of velocity gradient tensor in homogeneous isotropic turbulence
Creators: name: Nagata, Ryosuke
name: Watanabe, Tomoaki
name: Nagata, Koji
name: da Silva, Carlos B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The triple decomposition of a velocity gradient tensor is studied with direct numerical simulations of homogeneous isotropic turbulence, where the velocity gradient tensor is decomposed into three components representing an irrotational straining motion. Strength of these motions can be quantified with the decomposed components. A procedure of the triple decomposition is proposed for three-dimensional flows, where the decomposition is applied in a basic reference frame identified by examining a finite number of reference frames obtained by three sequential rotational transformations of a Cartesian coordinate. Even though more than one basic reference frame may be available for the triple decomposition, the results of the decomposition depend little on the choice of basic reference frame. In homogeneous isotropic turbulence, regions with strong rigid-body rotations or straining motions are highly intermittent in space, while most flow regions exhibit moderately strong shearing motions in the absence of straining motions and rigid-body rotations. The shear tensor is also used for detecting intense shear layers.
description: The quality of some figures is reduced from the original files to meet the file size limitation of arXiv. Computer and Fluids; 2019
Adjusted Win Ratio with Stratification: Calculation Methods and Interpretation
Creators: name: Gasparyan, Samvel B.
name: Folkvaljon, Folke
name: Bengtsson, Olof
name: Buenconsejo, Joan
name: Koch, Gary G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: 62G10

description: The win ratio is a general method of comparing locations of distributions of two independent, ordinal random variables, and it can be estimated without distributional assumptions. In this paper we provide a unified theory of win ratio estimation in the presence of stratification and adjustment by a numeric variable. Building step by step on the estimate of the crude win ratio we compare corresponding tests with well known nonparametric tests of group difference (Wilcoxon rank-sum test, Fligner-Plicello test, Cochran-Mantel-Haenszel test, test based on the regression on ranks and the rank ANCOVA test). We show that the win ratio gives an interpretable treatment effect measure with corresponding test to detect treatment effect difference under minimal assumptions.
Heavy-quark condensate at zero- and nonzero temperatures for various forms of the short-distance potential
Creators: name: Antonov, Dmitri
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: With the use of the world-line formalism, the heavy-quark condensate in the SU(N)-QCD is evaluated for the cases when the next-to-1/r term in the quark-antiquark potential at short distances is either quadratic, or linear. In the former case, the standard QCD-sum-rules result is reproduced, while the latter result is a novel one. Explicitly, it is UV-finite only in less than four dimensions. This fact excludes a possibility to have, in four dimensions, very short strings (whose length has the scale of the lattice spacing), and consequently the short-range linear potential (if it exists) cannot violate the OPE. In any number of dimensions, the obtained novel expression for the quark condensate depends on the string tension at short distances, rather than on the gluon condensate, and grows linearly with the number of colors in the same way as the standard QCD-sum-rules expression. The use of the world-line formalism enables one to generalize further both results to the case of finite temperatures. A generalization of the QCD-sum-rules expression to the case of an arbitrary number of space-time dimensions is also obtained and is shown to be UV-finite, provided this number is smaller than six.
description: 11 pages, no figures
Gapless Excitation above a Domain Wall Ground State in a Flat Band Hubbard Model
Creators: name: Homma, Makoto
name: Itoi, Chigak
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a set of exact ground states with a localized ferromagnetic domain wall and with an extended spiral structure in a deformed flat-band Hubbard model in arbitrary dimensions. We show the uniqueness of the ground state for the half-filled lowest band in a fixed magnetization subspace. The ground states with these structures are degenerate with all-spin-up or all-spin-down states under the open boundary condition. We represent a spin one-point function in terms of local electron number density, and find the domain wall structure in our model. We show the existence of gapless excitations above a domain wall ground state in dimensions higher than one. On the other hand, under the periodic boundary condition, the ground state is the all-spin-up or all-spin-down state. We show that the spin-wave excitation above the all-spin-up or -down state has an energy gap because of the anisotropy.
description: 26 pages, 1 figure. Typos are fixed
Determination of Phthalate Esters in Water and Liquid Pharmaceutical Samples by Dispersive Liquid-Liquid Microextraction (DLLME) and Gas Chromatography with Flame Ionization Detection (GC-FID)
Creators: name: Zakharkiv, Igor
name: Zui, Maryna
name: Zaitsev, Vladimir
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: A method of dispersive liquid-liquid microextraction (DLLME) with gas chromatographic separation has been developed and applied for the determination of phthalate esters in water samples and liquid pharmaceuticals. The method allows the determination of various phthalate esters with different polarities, namely: dimethyl phthalate, diethyl phthalate, di-iso-butyl phthalate, di-n-butyl phthalate, di(2-ethylhexyl) phthalate and di-n-octyl phthalate, with high values for the enrichment factors (370–390) and extraction recoveries (91–97%). Almost complete isolation of the phthalate esters from water samples was achieved by DLLME using chloroform as the extracting phase containing a minimum of 5–10% acetonitrile, isopropanol, or acetone as the disperser solvent and 10% sodium chloride as the salting-out agent. The results showed that increasing the amount of disperser solvent in the extracting phase leads to the growth in the phase polarity and thus improves the extractability of the polar analytes. The limits of detection determined for a signal-to-noise ratio equal to 3 were in the range from 1.0 to 1.6 µg L−1 and the relative standard deviations for 10.0 µg L−1 were below 9.7% (n = 3). The developed method demonstrates good repeatability and linearity and will be useful for the screening and quantitative determination of phthalate esters in various water samples and liquid pharmaceuticals.
Decoherence of cold atomic gases in magnetic micro-traps
Creators: name: Schroll, C.
name: Belzig, W.
name: Bruder, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We derive a model to describe decoherence of atomic clouds in atom-chip traps taking the excited states of the trapping potential into account. We use this model to investigate decoherence for a single trapping well and for a pair of trapping wells that form the two arms of an atom interferometer. Including the discrete spectrum of the trapping potential gives rise to a decoherence mechanism with a decoherence rate $Γ$ that scales like $Γ\sim 1/r_0^4$ with the distance $r_0$ from the trap minimum to the wire.
description: 15 pages, 10 figures, submitted to Phys. Rev. A
Pulmonary and systemic toxicity in rats following inhalation exposure of 3-D printer emissions from acrylonitrile butadiene styrene (ABS) filament
Creators: name: Farcas, Mariana T.
name: McKinney, Walter
name: Chaolong Qi
name: Mandler, Kyle W.
name: Battelli, Lori
name: Friend, Sherri A.
name: Stefaniak, Aleksandr B.
name: Jackson, Mark
name: Orandle, Marlene
name: Winn, Ava
name: Kashon, Michael
name: LeBouf, Ryan F.
name: Russ, Kristen A.
name: Hammond, Duane R.
name: Burns, Dru
name: Ranpara, Anand
name: Treye A. Thomas
name: Matheson, Joanna
name: Qian, Yong
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Science Policy

description: Fused filament fabrication 3-D printing with acrylonitrile butadiene styrene (ABS) filament emits ultrafine particulates (UFPs) and volatile organic compounds (VOCs). However, the toxicological implications of the emissions generated during 3-D printing have not been fully elucidated. The goal of this study was to investigate the in vivo toxicity of ABS-emissions from a commercial desktop 3-D printer. Male Sprague Dawley rats were exposed to a single concentration of ABS-emissions or air for 4 hours/day, 4 days/week for five exposure durations (1, 4, 8, 15, and 30 days). At 24 hours after the last exposure, rats were assessed for pulmonary injury, inflammation, and oxidative stress as well as systemic toxicity. 3-D printing generated particulate with average particle mass concentration of 240 ± 90 µg/m³, with an average geometric mean particle mobility diameter of 85 nm (geometric standard deviation = 1.6). The number of macrophages increased significantly at day 15. In bronchoalveolar lavage, IFN-γ and IL-10 were significantly higher at days 1 and 4, with IL-10 levels reaching a peak at day 15 in ABS-exposed rats. Neither pulmonary oxidative stress responses nor histopathological changes of the lungs and nasal passages were found among the treatments. There was an increase in platelets and monocytes in the circulation at day 15. Several serum biomarkers of hepatic and kidney functions were significantly higher at day 1. At the current experimental conditions applied, it was concluded that the emissions from ABS filament caused minimal transient pulmonary and systemic toxicity.
Agricultural Production, Productivity and R&D over the Past Half Century: An Emerging New World Order
Creators: name: Pardey, Philip G.
name: Alston, Julian M.
name: Chan-Kang, Connie
name: Pardey, Philip G.
name: Alston, Julian M.
name: Chan-Kang, Connie
Publisher: name: Unknown
Year: 2012
Subjects: Agricultural and Food Policy
Productivity Analysis
Research and Development/Tech Change/Emerging Technologies

description: Recent trends in farm productivity and food prices raise concerns about whether the era of global agricultural abundance is over. Agricultural R&D is a crucial determinant of agricultural productivity and production, and therefore food prices and poverty. In this paper we review past and present agricultural production and productivity trends and present entirely new evidence on investments in public agricultural R&D worldwide as an indicator of the prospects for agricultural productivity growth over the coming decades. The agricultural R&D world is changing, and in ways that will definitely affect future global patterns of poverty, hunger and other outcomes. The global picture is mixed. In the world as a whole crop yield growth has slowed. In high-income countries productivity growth has slowed significantly, and real spending on agricultural R&D is being reduced. In China, and other middle-income countries, spending on agricultural R&D is being ramped up and productivity growth has not slowed. The overall picture is one in which the middle-income countries are growing in relative importance as producers of agricultural innovations through investments in R&D and have consequently better prospects as producers of agricultural products.
Additional file 2 of Adherence to participant flow diagrams in trials on postoperative pain management after total hip and knee arthroplasty: a methodological review
Creators: name: Rønsbo, Thea Nørgaard
name: Laigaard, Jens
name: Pedersen, Casper
name: Mathiesen, Ole
name: Karlsen, Anders Peder Højer
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Included trials.
Additional file 1 of Predictive values of neutrophil-to-lymphocyte ratio on disease severity and mortality in COVID-19 patients: a systematic review and meta-analysis
Creators: name: Li, Xiaoming
name: Liu, Chao
name: Mao, Zhi
name: Xiao, Minglu
name: Wang, Li
name: Qi, Shuang
name: Zhou, Feihu
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Search strategy terms and results of PubMed.
On calculation of effective galvanomagnetic characteristics of inhomogeneous metals. Exact solution for the longitudinal effective conductivity of polycrystals of metals in high magnetic fields
Creators: name: Kaganova, Inna M.
name: Kaganov, Moisey I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the framework of the perturbation theory an expression suitable for calculation of the effective conductivity of 3-D inhomogeneous metals in uniform magnetic field $H$ is derived. For polycrystals of metals with closed Fermi surfaces in high magnetic fields the perturbation series defining the longitudinal and the hall elements of the perturbation series can be summed allowing us to obtain the exact expression for the leading terms of all these elements of the effective conductivity tensor.
description: 12 pages