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1,660 results on '"Costa, Caroline"'

1. Partial-wave projection of relativistic three-body amplitudes

Author

Briceño, Raúl A., Costa, Caroline S. R., and Jackura, Andrew W.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Lattice, High Energy Physics - Theory, Nuclear Theory
Abstract

We derive the integral equations for partial-wave projected three-body scattering amplitudes, starting from the integral equations for three-body amplitudes developed for lattice QCD analyses. The results, which hold for generic three-body systems of spinless particles, build upon the recently derived partial-wave projected one-particle exchange, a primary component of the relativistic framework proven to satisfy S matrix unitarity. We derive simplified expressions for factorizable short-distance interactions, $\mathcal{K}_{3}$, in two equivalent formalisms - one symmetric under particle interchange and one asymmetric. For the asymmetric case, we offer parameterizations useful for amplitude analysis. Finally, we examine toy models for $3\pi$ systems at unphysically heavy pion masses with total isospins 0,1, and 2., Comment: 47 pages, 5 figures

Published
2024

2. The proportion of weight gain due to change in fat mass in infants with vs without rapid growth

Author

Johnson, William, Nyati, Lukhanyo H., Ariff, Shabina, Ahmad, Tanvir, Byrne, Nuala M., Cheikh Ismail, Leila I., Costa, Caroline S., Demerath, Ellen W., Priscilla, Divya J., Hills, Andrew P., Kuriyan, Rebecca, Kurpad, Anura V., Loechl, Cornelia U., Lucas, M. Nishani, Santos, Ina S., Slater, Christine, Wickramasinghe, V. Pujitha, Norris, Shane A., and Murphy-Alford, Alexia J.

Published
2024
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5. Body composition from birth to 2 years

Author

Hills, Andrew P., Norris, Shane A., Byrne, Nuala M., Jayasinghe, Sisitha, Murphy-Alford, Alexia J., Loechl, Cornelia U., Ismail, Leila I. Cheikh, Kurpad, Anura V., Kuriyan, Rebecca, Nyati, Lukhanyo H., Santos, Ina S., Costa, Caroline S., Wickramasinghe, V. Pujitha, Lucas, M. Nishani, Slater, Christine, Yameen, Ayesha, and Ariff, Shabina

Published
2024
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7. Hadronization dynamics from the spectral representation of the gauge invariant quark propagator

Author

Costa, Caroline S. R., Accardi, Alberto, and Signori, Andrea

Subjects
High Energy Physics - Phenomenology, Nuclear Theory
Abstract

Using the spectral representation of the quark propagator we study the Dirac decomposition of the gauge invariant quark propagator, whose imaginary part describes the hadronization of a quark as this interacts with the vacuum. We then demonstrate the formal gauge invariance of the so-called jet mass, that is of the coefficient of the chiral-odd part of the gauge invariant propagator, that can be expressed in any gauge as the first moment of the chiral-odd quark spectral function. This is therefore revealed to be a \textit{bona fide} QCD observable encoding aspects of the dynamical mass generation in the QCD vacuum, and is furthermore experimentally measurable in specific twist-3 longitudinal-transverse asymmetries in DIS and in semi-inclusive electron-positron collisions. In light-like axial gauges, we also obtain a new sum rule for the spectral function associated with the gauge fixing vector. We finally present a gauge-dependent formula that connects the second moment of the chiral-even coefficient of the quark spectral function to invariant mass generation and final state rescattering in the hadronization of a quark. Finding twist-4 experimental observables sensitive to this quantity is left for future work., Comment: Contribution to DIS2023: XXX International Workshop on Deep-Inelastic Scattering and Related Subjects, Michigan State University, USA, 27-31 March 2023

Published
2023

8. Gauge invariant spectral analysis of quark hadronization dynamics

Author

Accardi, Alberto, Costa, Caroline S. R., and Signori, Andrea

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment, Nuclear Theory
Abstract

We study the Dirac decomposition of the gauge invariant quark propagator, whose imaginary part describes the hadronization of a quark as this interacts with the vacuum, and relate each of its coefficients to a specific sum rule for the chiral-odd and chiral-even quark spectral functions. Working at first in light-like axial gauge, we obtain a new sum rule for the spectral function associated to the gauge fixing vector, and show that its second moment is in fact equal to zero. Then, we demonstrate that the first moment of the chiral-odd quark spectral function is equal in any gauge to the so-called inclusive jet mass, which is related to the mass of the particles produced in the hadronization of a quark. Finally, we present a gauge-dependent formula that connects the second moment of the chiral-even quark spectral function to invariant mass generation and final state rescattering in the hadronization of a quark., Comment: 16 pages

Published
2023
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13. Tomilho

Author

Mazoni Maciel, Aline, primary, Abud Drummond Costa, Caroline, additional, and Rihl Castro, Luísa, additional

Published
2024
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15. Quark-Antiquark Effective Potential in Symplectic Quantum Mechanics

Author

Luz, R. R., Costa, Caroline S. R., Petronilo, G. X. A., Santana, A. E., Amorim, R. G. G., and Paiva, R. A. S.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Theory
Abstract

In this paper, we study within the structure of Symplectic Quantum Mechanics a bi-dimensional non-relativistic strong interaction system which represent the bound state of heavy quark-antiquark, where we consider a Cornell potential which consists of Coulomb-type plus linear potentials. First, we solve the Schr\"odinger equation in the phase space with the linear potential. The solution (ground state) is obtained and analyzed by means of the Wigner function related to Airy function for the $c\overline{c}$ meson. In the second case, to treat the Schr\"odinger-like equation in the phase space, a procedure based on the Bohlin transformation is presented and applied to the Cornell potential. In this case, the system is separated into two parts, one analogous to the oscillator and the other we treat using perturbation method. Then, we quantized the Hamiltonian with the aid of stars operators in the phase space representation so that we can determine through the algebraic method the eigenfunctions of the undisturbed Hamiltonian (oscillator solution), and the other part of the Hamiltonian was the perturbation method. The eigenfunctions found (undisturbed plus disturbed) are associated with the Wigner function via Weyl product using the representation theory of Galilei group in the phase space. The Wigner function is analyzed, the non-classicality of ground state and first excited state is studied by the non-classicality indicator or negativity parameter of the Wigner function for this system. In some aspects, we observe that the Wigner function offers an easier way to visualize the non-classic nature of meson system than the wavefunction does., Comment: 12 pages, 4 figures

Published
2021

17. An automated near-real time computational method for induction and treatment of scar-related ventricular tachycardias

Author

Campos, Fernando O., Neic, Aurel, Costa, Caroline Mendonca, Whitaker, John, O'Neill, Mark, Razavi, Reza, Rinaldi, Christopher A., Scherr, Daniel, Niederer, Steven A., Plank, Gernot, and Bishop, Martin J.

Subjects
Physics - Medical Physics
Abstract

Catheter ablation is currently the only curative treatment for scar-related ventricular tachycardias (VTs). However, not only are ablation procedures long, with relatively high risk, but success rates are punitively low, with frequent VT recurrence. Personalized in-silico approaches have the opportunity to address these limitations. However, state-of-the-art reaction diffusion (R-D) simulations of VT induction and subsequent circuits used for in-silico ablation target identification require long execution times, along with vast computational resources, which are incompatible with the clinical workflow. Here, we present the Virtual Induction and Treatment of Arrhythmias (VITA), a novel, rapid and fully automated computational approach that uses reaction-Eikonal methodology to induce VT and identify subsequent ablation targets. The rationale for VITA is based on finding isosurfaces associated with an activation wavefront that splits in the ventricles due to the presence of an isolated isthmus of conduction within the scar; once identified, each isthmus may be assessed for their vulnerability to sustain a reentrant circuit, and the corresponding exit site automatically identified for potential ablation targeting. VITA was tested on a virtual cohort of 7 post-infarcted porcine hearts and the results compared to R-D simulations. Using only a standard desktop machine, VITA could detect all scar-related VTs, simulating activation time maps and ECGs (for clinical comparison) as well as computing ablation targets in 48 minutes. The comparable VTs probed by the R-D simulations took 68.5 hours on 256 cores of high-performance computing infrastructure. The set of lesions computed by VITA was shown to render the ventricular model VT-free. VITA could be used in near real-time as a complementary modality aiding in clinical decision-making in the treatment of post-infarction VTs.

Published
2021

18. Computational Biomechanics of Ventricular Dyssynchrony and Resynchronization Therapy

Author

Lee, Angela W. C., Strocchi, Marina, Rodero, Cristobal, Mendonca Costa, Caroline, Niederer, Steven A., Hecker, Markus, Editor-in-Chief, Duncker, Dirk J., Editor-in-Chief, Backs, Johannes, Series Editor, Freichel, Marc, Series Editor, Mayr, Manuel, Series Editor, Pohl, Ulrich, Series Editor, Xiao, Junjie, Series Editor, Merkus, Daphne, Series Editor, and Parker, Sarah, Series Editor

Published
2023
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24. Variation of modulation and expression of biomarkers associated with inflammation in bariatric surgery patients: A systematic review and meta-analysis

Author

Machado, Cátia R., Braun, Amanda M., Ceolin, Jamile, Richter, Samanta A., Ribeiro, Mariele C., Santos, Leonardo D., Rigo, Maurício M., de Souza, Ana P.D., Padoin, Alexandre V., Alves, Letícia B., Mottin, Claudio C., Drumond Costa, Caroline A., Mundstock, Eduardo, Cañon-Montañez, Wilson, Ayala, Camila Ospina, and Mattiello, Rita

Published
2023
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26. Body composition reference charts for infants from birth to 24 months: Multicenter Infant Body Composition Reference Study

Author

Murphy-Alford, Alexia J., Johnson, William, Nyati, Lukhanyo H., Santos, Ina S., Hills, Andrew P., Ariff, Shabina, Wickramasinghe, V. Pujitha, Kuriyan, Rebecca, Lucas, M.Nishani, Costa, Caroline S., Slater, Christine, Ahmad, Tanvir, Byrne, Nuala M., Divya, Priscilla J., Kurpad, Anura V., Cheikh Ismail, Leila I., Loechl, Cornelia U., and Norris, Shane A.

Published
2023
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27. Inequalities in Leisure-Time Physical Activity and Television Viewing According to Age Among a Brazilian Adult Population.

Author

Wendt, Andrea, Machado, Adriana K.F., da Silva, Bruna G.C., Costa, Caroline S., Ricardo, Luiza I.C., and da Silva, Shana Ginar

Subjects
PHYSICAL activity, TELEVISION viewing, AGE groups, HUMAN skin color, AGE
Abstract

Background: The present study aims to estimate leisure-time physical activity and television (TV) viewing curves according to age stratified by sex, area of residence, and socioeconomic position. Methods: Using data from the Brazilian National Health Survey, we estimated the prevalence of leisure-time physical activity and TV viewing according to continuous age. The estimates were calculated using fractional polynomials and stratified by sex, wealth, skin color, and area of residence. Results: The sample included 87,376 adults (aged 18 y or over). In general, leisure-time physical activity decreased according to age while TV viewing increased. Regarding behavior of curves according to stratifiers, for leisure-time physical activity the disadvantaged groups maintained a pattern of low physical activity across all age groups or presented the decrease earlier when compared to groups in social advantage. On the other hand, for TV viewing, women presented an increase in prevalence before men, and individuals living in the urban area and the wealthiest group were those with a higher increase according to age. Conclusions: Our findings may help researchers and policymakers further explore inequalities in physical activity across life in different settings, as well as develop sensitive cultural actions to support more vulnerable people to adopt public health recommendations. [ABSTRACT FROM AUTHOR]

Published
2024
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28. Unveiled chromosomal diversity in the Araneidae (Araneomorphae) : the highest diploid number among entelegynes and the first record of the X₁X₂X₃X₄ Sex Chromosome System in the family

Author

Souza, Lucas Henrique Bonfim, Costa, Caroline Correia, Silva, Bruno Cansanção, Dutra, Debora Duarte, dos Santos Montanholi, Arthur, Oliveira, Beatriz, Roghanian, Susan, Lemos, Larissa Candido, Pontes, Henrique Ranieri Covali, de Pádua, Aline Agatha, dos Santos Dias, Rebeca Rocha Sobrinho, Brescovit, Antonio Domingos, and Araujo, Douglas

Published
2022

32. VIOLÊNCIA OBSTÉTRICA NA ASSISTÊNCIA DE ENFERMAGEM: uma revisão integrativa

Author

Rego, Yana Mari Castelo Branco, primary, Batista, Jessika Valeria da Silva, additional, Andrade, Ricardo Henrique Linhares, additional, Aguiar, Lisrhanna Alves de, additional, Araújo, Anderson da Conceição, additional, Lira, Maria Edileia Vilar, additional, Costa, Caroline Beatriz Gomes Ferreira da, additional, Silva, Lunara Alcantara, additional, Assunção, Francisco Lucas Galeno, additional, and Almeida, Joelson dos Santos, additional

Published
2023
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35. BENEFÍCIOS DO ALEITAMENTO MATERNO PARA A MÃE E O BEBÊ

Author

Torres, Barbara Vitória dos Santos, primary, Costa, Caroline Magna de Oliveira, additional, Santos, Diane Fernandes dos, additional, Oliveira, Jayane Omena de, additional, Silva, Jislene dos Santos, additional, Oliveira, Juliana Barbosa Valdevino de, additional, and Bulhões, Thaynara Maria Pontes, additional

Published
2023
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38. COMPOSIÇÃO DO LEITE HUMANO

Author

Costa, Caroline Magna de Oliveira, primary, Santos, Diane Fernandes dos, additional, Oliveira, Jayane Omena de, additional, Silva, Jislene dos Santos, additional, Oliveira, Juliana Barbosa Valdevino de, additional, Bulhões, Thaynara Maria Pontes, additional, and Araújo, Léa Christine Ferreira de, additional

Published
2023
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39. Development of a new non invasive prognostic stroke scale (NIPSS) including triage elements for sleep apnea and peripheral artery disease

Author

Oliveira, Alice Silva de, Dantas, Moises Correia, de Jesus, Pedro Antonio Pereira, Farias, Daniel Santana, de Almeida, Bruno Mota, Santos, Caio Sales de Oliveira, Santos, Caio Silveira Leite Alves, Blumetti, Camila Rodrigues, de Faria, Carolina Dourado, Costa, Caroline de Carvalho, Fernandes, Daniela Plácido, Nogueira, Evelyn de Brito, Fonseca, Gabriela de Queiroz, Pinto, Joao Pedro Miguez, Oliveira, Isabelle Jacqueline Weber, Barcelos, Lara Santos, Velloso, Liz Ulm Ferreira, Lucio, Marcio Jamerson Pinheiro, Pimenta, Milla Dantas, Leopoldino, Osvaldo Carlos Silva, de Medeiros, Rafaella Cazé, Junior, Tairone Matos de Lima, Santana, Tiffany Almeida, Lacerda, Vinicius Ruas, Alcantara, Yasmin de Fátima Vilasboas, and Oliveira-Filho, Jamary

Published
2023
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41. IMPACT OF ROBOTIC SURGERY ON GASTROINTESTINAL PROCEDURES: INTEGRATIVE REVIEW OF COMPLICATIONS AND SAFETY

Author

Aguiar, Renato Júnior dos Reis, primary, Fernandes, Brenda Morais Campos, additional, Tsutsumi, Ariane Abreu, additional, Amaral, Heron Conde Suckow, additional, Nishi, Bruno Hideo, additional, Bortoli, Victor Fajardo, additional, Mariano, Ana Luiza Mendonça, additional, Alcântara, Pedro Gonçalves, additional, Ronconi, Ana Júlia Rodrigues, additional, Gonçalves, Laura Carolina Andreo, additional, Palomino, Karel Martínez, additional, and Costa, Caroline Patrícia Amaral, additional

Published
2024
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48. Body composition of infants at 6 months of age using a 3-compartment model.

Author

Kuriyan, Rebecca, Hills, Andrew P., Murphy-Alford, Alexia, Padmanabha, Ramya, Nyati, Lukhanyo H., Byrne, Nuala M., Kurpad, Anura V., Norris, Shane, Ariff, Shabina, Santos, Ina S., Wickramasinghe, V. Pujitha, Murphy-Alford, Alexia J., Nyati, Lukhanyo, Costa, Caroline S., Lucas, Nishani, Ahmad, Tanvir, Ahuja, Kiran D. K., Beckett, Jeffrey M., Bielemann, Renata M., and Charania, Laila

Subjects
PLETHYSMOGRAPHY, STATISTICAL models, RESEARCH funding, BODY composition, DESCRIPTIVE statistics, HYDRATION, RADIOISOTOPES in medical diagnosis, LEAN body mass, WATER in the body, COMPARATIVE studies, CONFIDENCE intervals, CHILDREN
Abstract

Background/Objectives: Two compartment (2 C) models of body composition, including Air Displacement Plethysmography (ADP) and Deuterium Dilution (DD), assume constant composition of fat-free mass (FFM), while 3-compartment (3 C) model overcomes some of these assumptions; studies are limited in infants. The objective of the present study is to compare 3 C estimates of body composition in 6-mo. old infants from Australia, India, and South Africa, including FFM density and hydration, compare with published literature and to evaluate agreement of body composition estimates from ADP and DD. Methods: Body volume and water were measured in 176 healthy infants using ADP and DD. 3C-model estimates of fat mass (FM), FFM and its composition were calculated, compared between countries (age and sex adjusted) and with published literature. Agreement between estimates from ADP and DD were compared by Bland–Altman and correlation analyses. Results: South African infants had significantly higher % FM (11.5%) and density of FFM compared to Australian infants. Australian infants had significantly higher % FFM (74.7 ± 4.4%) compared to South African infants (71.4 ± 5.0) and higher FFMI (12.7 ± 0.8 kg/m2) compared to South African (12.3 ± 1.2 kg/m2) and Indian infants (11.9 ± 1.0 kg/m2). FFM composition of present study differed significantly from literature. Pooled three country estimates of FM and FFM were comparable between ADP and DD; mean difference of −0.05 (95% CI: −0.64, +0.55) kg and +0.05 (95% CI: −0.55, +0.64) kg. Conclusions: 3C-model estimates of body composition in infants differed between countries; future studies are needed to confirm these findings and investigate causes for the differences. [ABSTRACT FROM AUTHOR]

Published
2024
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49. In Silico Characterization of Inflammatory and Anti-Inflammatory Modulation in Diabetic Nephropathy: The Construction of a Genetic Panel.

Author

Costa, Caroline Christine Pincela da, Assunção, Leandro do Prado, Santos, Kamilla de Faria, Silva, Laura da, Santos, Rodrigo da Silva, and Reis, Angela Adamski da Silva

Subjects
*DIABETIC nephropathies, *PROTEIN-protein interactions, *PUBLIC health, *PROGNOSIS, *COST control
Abstract

Diabetic Nephropathy (DN) stands as a primary cause of end-stage renal disease and its etiology remains unclear. Thus, this study aims to construct a genetic panel with potential biomarkers linked to the inflammatory pathway of DN associated with the pathology's susceptibility. Through a systematic review and meta-analysis, we selected observational studies in English, Portuguese, and Spanish, selected from the PubMed, SCOPUS, Virtual Health Library, Web of Science, and EMBASE databases. Additionally, a protein–protein interaction network was constructed to list hub genes, with differential expression analysis by microarray of kidneys with DN from the GSE30529 database to further refine results. Seventy-two articles were included, and 54 polymorphisms in 37 genes were associated with the inflammatory pathway of DN. Meta-analysis indicated a higher risk of complication associated with SNPs 59029 G/A, −511 C/T, VNTR 86 bp, −308 G/A, and −1031 T/C. Bioinformatics analyses identified differentially expressed hub genes, underscoring the scarcity of studies on CCL2 and VEGF-A genes in relation to DN. This study highlighted the intrinsic relationship between inflammatory activity in the etiology and progression of DN, enabling the effective application of precision medicine in diabetic patients for potential prognosis of the complications and contributing to cost reduction in the public health system. [ABSTRACT FROM AUTHOR]

Published
2024
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