Search

Your search keyword '"Nedela R."' showing total 8 results
Start Over Author "Nedela R." Search Limiters Full Text
8 results on '"Nedela R."'

1. Recipročné kosomorfismy cyklických grup

Author

Hu, K., Nedela, R., Wang, N-E, and Kai Yuan

Subjects
complete regular dessin, Reciprocal pair, kosomorfismus grup, úplný regulární dezén, smooth skew morphism
Abstract

Existuje koresponence mezi recipročnímy kosomorfismy cyklických grup a úplnými regulárními dezény. V clanku určíme recipročné kosomorfizmy cyklických grúp. Reciprocal pairs of skew morphisms of cyclic groups are in one-to-one correspondence with isomorphism classes of regular dessins with complete bipartite underlying graphs. In this paper we determine all reciprocal pairs of skew morphisms of the cyclic groups provided that one of them is a group automorphism.

Published
2019

2. CUBIC CAYLEY GRAPHS OF GIRTH AT MOST 6 AND THEIR HAMILTONICITY.

Author

ABOOMAHIGIR, E. and NEDELA, R.

Subjects
*CAYLEY graphs, *HAMILTONIAN graph theory, *LOGICAL prediction
Abstract

Thomassen's conjecture states that a cubic graph with sufficiently large cyclic connectivity is hamiltonian. Even the following strong conjecture could hold: A cyclically 7-connected cubic graph is hamiltonian, or it is the Coxeter graph. Assuming the conjecture holds true, to prove the hamiltonicity of cubic Cayley graphs it is sufficient to examine cubic Cayley graphs of girth at most 6. Motivated by this, we characterise cubic Cayley graphs of girth at most six and identify few \hard families" of cubic Cayley graphs of small girth for which we are not able to verify whether they are hamiltonian. [ABSTRACT FROM AUTHOR]

Published
2019

3. RECIPROCAL SKEW MORPHISMS OF CYCLIC GROUPS.

Author

HU, K., NEDELA, R., WANG, N.-E., and YUAN, K.

Subjects
*CYCLIC groups, *AUTOMORPHISM groups, *BIPARTITE graphs, *BIJECTIONS
Abstract

A skew morphism of the cyclic additive group Zn is a bijection φ on Zn for which there exists an integer-valued function π : Zn → Z such that φ(0) = 0 and φ(x + y) = φ(x) + φπ(x)(y) for all x; y 2 Zn. A pair of skew morphisms φ: Zn → Zn and eφ: Zm → Zm are reciprocal if (a) the orders of φ and eφ divide m and n, respectively, and (b) the associated power functions π and π are determined by π(x) = eφx(1) and π(y) = φy(1). Reciprocal pairs of skew morphisms of cyclic groups are in one-to-one correspondence with isomorphism classes of regular dessins with complete bipartite underlying graphs. In this paper we determine all reciprocal pairs of skew morphisms of the cyclic groups provided that one of them is a group automorphism. [ABSTRACT FROM AUTHOR]

Published
2019

6. SARS-CoV-2 Breakthrough Infections: Incidence and Risk Factors in a Large European Multicentric Cohort of Health Workers

Author

Stefano Porru, Maria Grazia Lourdes Monaco, Gianluca Spiteri, Angela Carta, Maria Diletta Pezzani, Giuseppe Lippi, Davide Gibellini, Evelina Tacconelli, Ilaria Dalla Vecchia, Emma Sala, Emanuele Sansone, Giuseppe De Palma, Carlo Bonfanti, Massimo Lombardo, Luigina Terlenghi, Enrico Pira, Ihab Mansour, Maurizio Coggiola, Catalina Ciocan, Alessandro Godono, Adonina Tardon, Marta-Maria Rodriguez-Suarez, Guillermo Fernandez-Tardon, Francisco-Jose Jimeno-Demuth, Rafael-Vicente Castro-Delgado, Tania Iglesias Cabo, Maria Luisa Scapellato, Filippo Liviero, Angelo Moretto, Paola Mason, Sofia Pavanello, Anna Volpin, Luigi Vimercati, Silvio Tafuri, Luigi De Maria, Stefania Sponselli, Pasquale Stefanizzi, Antonio Caputi, Fabriziomaria Gobba, Alberto Modenese, Loretta Casolari, Denise Garavini, Cristiana D’Elia, Stefania Mariani, Francesca Larese Filon, Luca Cegolon, Corrado Negro, Federico Ronchese, Francesca Rui, Paola De Michieli, Nicola Murgia, Marco Dell’Omo, Giacomo Muzi, Tiziana Fiordi, Angela Gambelunghe, Ilenia Folletti, Dana Mates, Violeta Claudia Calota, Andra Neamtu, Ovidiu Perseca, Catalin Alexandru Staicu, Angelica Voinoiu, Eleonóra Fabiánová, Jana Bérešová, Zora Kľocová Adamčáková, Roman Nedela, Anna Lesňáková, Jana Holčíková, Paolo Boffetta, Mahsa Abedini, Giorgia Ditano, Shuffield Seyram Asafo, Giovanni Visci, Francesco Saverio Violante, Carlotta Zunarelli, Giuseppe Verlato, Porru, S, Monaco, Mgl, Spiteri, G, Carta, A, Pezzani, Md, Lippi, G, Gibellini, D, Tacconelli, E, Dalla Vecchia, I, Sala, E, Sansone, E, De Palma, G, Bonfanti, C, Lombardo, M, Terlenghi, L, Pira, E, Mansour, I, Coggiola, M, Ciocan, C, Godono, A, Tardon, A, Rodriguez-Suarez, Mm, Fernandez-Tardon, G, Jimeno-Demuth, Fj, Castro-Delgado, Rv, Iglesias Cabo, T, Scapellato, Ml, Liviero, F, Moretto, A, Mason, P, Pavanello, S, Volpin, A, Vimercati, L, Tafuri, S, De Maria, L, Sponselli, S, Stefanizzi, P, Caputi, A, Gobba, F, Modenese, A, Casolari, L, Garavini, D, D'Elia, C, Mariani, S, Filon, Fl, Cegolon, L, Negro, C, Ronchese, F, Rui, F, De Michieli, P, Murgia, N, Dell'Omo, M, Muzi, G, Fiordi, T, Gambelunghe, A, Folletti, I, Mates, D, Calota, Vc, Neamtu, A, Perseca, O, Staicu, Ca, Voinoiu, A, Fabiánová, E, Bérešová, J, Adamčáková, Zk, Nedela, R, Lesňáková, A, Holčíková, J, Boffetta, P, Abedini, M, Ditano, G, Asafo, S, Visci, G, Violante, F, Zunarelli, C, Verlato, G, Porru S., Monaco M.G.L., Spiteri G., Carta A., Pezzani M.D., Lippi G., Gibellini D., Tacconelli E., Dalla Vecchia I., Sala E., Sansone E., De Palma G., Bonfanti C., Lombardo M., Terlenghi L., Pira E., Mansour I., Coggiola M., Ciocan C., Godono A., Tardon A., Rodriguez-Suarez M.-M., Fernandez-Tardon G., Jimeno-Demuth F.-J., Castro-Delgado R.-V., Iglesias Cabo T., Scapellato M.L., Liviero F., Moretto A., Mason P., Pavanello S., Volpin A., Vimercati L., Tafuri S., De Maria L., Sponselli S., Stefanizzi P., Caputi A., Gobba F., Modenese A., Casolari L., Garavini D., D'Elia C., Mariani S., Filon F.L., Cegolon L., Negro C., Ronchese F., Rui F., De Michieli P., Murgia N., Dell'Omo M., Muzi G., Fiordi T., Gambelunghe A., Folletti I., Mates D., Calota V.C., Neamtu A., Perseca O., Staicu C.A., Voinoiu A., Fabianova E., Beresova J., Adamcakova Z.K., Nedela R., Lesnakova A., Holcikova J., Boffetta P., Abedini M., Ditano G., Asafo S.S., Visci G., Violante F.S., Zunarelli C., and Verlato G.

Subjects
Pharmacology, health worker, COVID-19, SARS-CoV-2 vaccination, breakthrough infections, health workers, occupational and socio-demographic determinants, Immunology, breakthrough infection, Infectious Diseases, occupational and socio-demographic determinant, Drug Discovery, Pharmacology (medical)
Abstract

European Commission, H2020 [101016167]; Regional Health Authority (Azienda Zero), Veneto Region, Italy; Health Research Institute of Asturias (ISPA), Spain, Porru S, Monaco MGL, Spiteri G, Carta A, Pezzani MD, Lippi G, Gibellini D, Tacconelli E, Dalla Vecchia I, Sala E, Sansone E, De Palma G, Bonfanti C, Lombardo M, Terlenghi L, Pira E, Mansour I, Coggiola M, Ciocan C, Godono A, Tardon A, Rodriguez-Suarez MM, Fernandez-Tardon G, Jimeno-Demuth FJ, Castro-Delgado RV, Iglesias Cabo T, Scapellato ML, Liviero F, Moretto A, Mason P, Pavanello S, Volpin A, Vimercati L, Tafuri S, De Maria L, Sponselli S, Stefanizzi P, Caputi A, Gobba F, Modenese A, Casolari L, Garavini D, D'Elia C, Mariani S, Filon FL, Cegolon L, Negro C, Ronchese F, Rui F, De Michieli P, Murgia N, Dell'Omo M, Muzi G, Fiordi T, Gambelunghe A, Folletti I, Mates D, Calota VC, Neamtu A, Perseca O, Staicu CA, Voinoiu A, Fabiánová E, Bérešová J, Adamčáková ZK, Nedela R, Lesňáková A, Holčíková J, Boffetta P, Abedini M, Ditano G, Asafo SS, Visci G, Violante FS, Zunarelli C, Verlato G

Published
2022

8. SARS-CoV-2 Breakthrough Infections: Incidence and Risk Factors in a Large European Multicentric Cohort of Health Workers.

Author

Porru S, Monaco MGL, Spiteri G, Carta A, Pezzani MD, Lippi G, Gibellini D, Tacconelli E, Dalla Vecchia I, Sala E, Sansone E, De Palma G, Bonfanti C, Lombardo M, Terlenghi L, Pira E, Mansour I, Coggiola M, Ciocan C, Godono A, Tardon A, Rodriguez-Suarez MM, Fernandez-Tardon G, Jimeno-Demuth FJ, Castro-Delgado RV, Iglesias Cabo T, Scapellato ML, Liviero F, Moretto A, Mason P, Pavanello S, Volpin A, Vimercati L, Tafuri S, De Maria L, Sponselli S, Stefanizzi P, Caputi A, Gobba F, Modenese A, Casolari L, Garavini D, D'Elia C, Mariani S, Filon FL, Cegolon L, Negro C, Ronchese F, Rui F, De Michieli P, Murgia N, Dell'Omo M, Muzi G, Fiordi T, Gambelunghe A, Folletti I, Mates D, Calota VC, Neamtu A, Perseca O, Staicu CA, Voinoiu A, Fabiánová E, Bérešová J, Adamčáková ZK, Nedela R, Lesňáková A, Holčíková J, Boffetta P, Abedini M, Ditano G, Asafo SS, Visci G, Violante FS, Zunarelli C, and Verlato G

Abstract

Background: The research aimed to investigate the incidence of SARS-CoV-2 breakthrough infections and their determinants in a large European cohort of more than 60,000 health workers., Methods: A multicentric retrospective cohort study, involving 12 European centers, was carried out within the ORCHESTRA project, collecting data up to 18 November 2021 on fully vaccinated health workers. The cumulative incidence of SARS-CoV-2 breakthrough infections was investigated with its association with occupational and social-demographic characteristics (age, sex, job title, previous SARS-CoV-2 infection, antibody titer levels, and time from the vaccination course completion)., Results: Among 64,172 health workers from 12 European health centers, 797 breakthrough infections were observed (cumulative incidence of 1.2%). The primary analysis using individual data on 8 out of 12 centers showed that age and previous infection significantly modified breakthrough infection rates. In the meta-analysis of aggregated data from all centers, previous SARS-CoV-2 infection and the standardized antibody titer were inversely related to the risk of breakthrough infection ( p = 0.008 and p = 0.007, respectively)., Conclusion: The inverse correlation of antibody titer with the risk of breakthrough infection supports the evidence that vaccination plays a primary role in infection prevention, especially in health workers. Cellular immunity, previous clinical conditions, and vaccination timing should be further investigated.

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results