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  1. Buch ; Online: Embeddedness of liquid-vapour interfaces in stable equilibrium

    Bellettini, Costante

    2021  

    Abstract: We consider a classical (capillary) model for a one-phase liquid in equilibrium. The liquid (e.g. water) is subject to a volume constraint, it does not mix with the surrounding vapour (e.g. air), it may come into contact with solid supports (e.g. a ... ...

    Abstract We consider a classical (capillary) model for a one-phase liquid in equilibrium. The liquid (e.g. water) is subject to a volume constraint, it does not mix with the surrounding vapour (e.g. air), it may come into contact with solid supports (e.g. a container), and is subject to the action of an analytic potential field (e.g. gravity). The region occupied by the liquid is described as a set of locally finite perimeter (Caccioppoli set) in $\mathbb{R}^3$; no a priori regularity assumption is made on its boundary. The (twofold) scope in this note is to propose a weakest possible set of mathematical assumptions that sensibly describe a condition of stable equilibrium for the liquid-vapour interface (the capillary surface), and to infer from those that this interface is a smoothly embedded analytic surface. (The liquid-solid-vapour junction, or free boundary, can be present but is not analysed here.) The result relies fundamentally on the recent varifold regularity theory developed by Wickramasekera and the author, and on the identification of a suitable formulation of the stability condition.

    Comment: 32 pages, 3 Figures
    Schlagwörter Mathematics - Analysis of PDEs ; Mathematical Physics ; Mathematics - Differential Geometry ; 49Q20 ; 49Q10 ; 35J62 ; 53A10
    Thema/Rubrik (Code) 621
    Erscheinungsdatum 2021-04-25
    Erscheinungsland us
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel: Antithrombotic Therapy in Patients with Coronary Artery Disease and Prior Stroke.

    Bellettini, Elisa / De Luca, Leonardo

    Journal of clinical medicine

    2021  Band 10, Heft 9

    Abstract: Patients with coronary artery disease (CAD) and prior cerebrovascular events (CVE) are frequently faced in clinical practice and present a high rate of both ischemic and bleeding events. For these reasons, the antithrombotic management is particularly ... ...

    Abstract Patients with coronary artery disease (CAD) and prior cerebrovascular events (CVE) are frequently faced in clinical practice and present a high rate of both ischemic and bleeding events. For these reasons, the antithrombotic management is particularly challenging in this subgroup of patients. Recent trials suggest that, although a potent antiplatelet strategy is safe in the acute phases of myocardial ischemia for these patients, the risk of major bleeding complications, including intracranial hemorrhage, is extremely high when the antithrombotic therapy is prolonged for a long period of time. Therefore, especially in patients with chronic CAD and history of CVE, the antithrombotic management should be carefully balanced between ischemic and bleeding risks. The present review is aimed at critically evaluating the available evidence to help make these crucial clinical decisions regarding the better antithrombotic therapy to use in this high-risk subgroup of patients.
    Sprache Englisch
    Erscheinungsdatum 2021-04-29
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Review
    ZDB-ID 2662592-1
    ISSN 2077-0383
    ISSN 2077-0383
    DOI 10.3390/jcm10091923
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Antithrombotic Therapy in Patients with Coronary Artery Disease and Prior Stroke

    Elisa Bellettini / Leonardo De Luca

    Journal of Clinical Medicine, Vol 10, Iss 1923, p

    2021  Band 1923

    Abstract: Patients with coronary artery disease (CAD) and prior cerebrovascular events (CVE) are frequently faced in clinical practice and present a high rate of both ischemic and bleeding events. For these reasons, the antithrombotic management is particularly ... ...

    Abstract Patients with coronary artery disease (CAD) and prior cerebrovascular events (CVE) are frequently faced in clinical practice and present a high rate of both ischemic and bleeding events. For these reasons, the antithrombotic management is particularly challenging in this subgroup of patients. Recent trials suggest that, although a potent antiplatelet strategy is safe in the acute phases of myocardial ischemia for these patients, the risk of major bleeding complications, including intracranial hemorrhage, is extremely high when the antithrombotic therapy is prolonged for a long period of time. Therefore, especially in patients with chronic CAD and history of CVE, the antithrombotic management should be carefully balanced between ischemic and bleeding risks. The present review is aimed at critically evaluating the available evidence to help make these crucial clinical decisions regarding the better antithrombotic therapy to use in this high-risk subgroup of patients.
    Schlagwörter antithrombotic therapy ; clopidogrel ; ticagrelor ; prasugrel ; aspirin ; rivaroxaban ; Medicine ; R
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2021-04-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel ; Online: Balancing gene transfection and cytotoxicity of nucleic acid carriers with focus on ocular and hepatic disorders: evaluation of hydrophobic and hydrophilic polyethyleneimine derivatives.

    de Oliveira, Fernando A / Albuquerque, Lindomar J C / Nascimento-Sales, Michelle / Christoffolete, Marcelo A / Bellettini, Ismael C / Giacomelli, Fernando C

    Journal of materials chemistry. B

    2023  Band 11, Heft 20, Seite(n) 4556–4571

    Abstract: Polyethyleneimine (PEI) derivatives substituted by lactose, succinic acid or alkyl domains were evaluated as nonviral gene delivery vectors towards balancing gene transfection and cytotoxicity. The investigations were focused on pDNA transfection into ... ...

    Abstract Polyethyleneimine (PEI) derivatives substituted by lactose, succinic acid or alkyl domains were evaluated as nonviral gene delivery vectors towards balancing gene transfection and cytotoxicity. The investigations were focused on pDNA transfection into arising retinal pigment epithelia (ARPE-19) and human hepatocellular carcinoma (HepG2) cell lines. The first mentioned cell line was chosen as motivated by the non-negligible number of ocular disorders linked to gene aberrations, whereas the second one is a cell line overexpressing the asialoglycoprotein receptor (ASGP-R), which can bind to galactose residues. The presence of short alkyl domains (C
    Mesh-Begriff(e) Humans ; Polyethyleneimine/chemistry ; Plasmids ; Nucleic Acids ; Succinic Acid ; Lactose ; Transfection ; DNA/genetics ; DNA/chemistry ; Liver Neoplasms/genetics
    Chemische Substanzen Polyethyleneimine (9002-98-6) ; Nucleic Acids ; Succinic Acid (AB6MNQ6J6L) ; Lactose (J2B2A4N98G) ; DNA (9007-49-2)
    Sprache Englisch
    Erscheinungsdatum 2023-05-24
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2702241-9
    ISSN 2050-7518 ; 2050-750X
    ISSN (online) 2050-7518
    ISSN 2050-750X
    DOI 10.1039/d3tb00477e
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Polyethylenimine as a Versatile Simultaneous Reducing and Stabilizing Agent Enabling One-Pot Synthesis of Transition-Metal Nanoparticles: Fundamental Aspects and Practical Implications.

    Ribeiro, Caroline A S / Panico, Karine / Handajevsky, Tamara J / da Silva, Fernanda Dias / Bellettini, Ismael C / Pavlova, Ewa / Giacomelli, Fernando C

    Langmuir : the ACS journal of surfaces and colloids

    2023  Band 39, Heft 48, Seite(n) 17353–17365

    Abstract: The large surface area of metallic nanoparticles provides them with particular optical, chemical, and biological properties, accordingly enabling their use in a wide array of applications. In this regard, facile and fast synthetic approaches are ... ...

    Abstract The large surface area of metallic nanoparticles provides them with particular optical, chemical, and biological properties, accordingly enabling their use in a wide array of applications. In this regard, facile and fast synthetic approaches are desirable for ready-to-use functional materials. Following early investigations focused on the direct synthesis of polymer-coated gold nanoparticles, we herein demonstrate that such a strategy can be used to manufacture different types of d-block transition-metal nanoparticles via a one-pot method in aqueous media and mild temperature conditions. Gold (Au
    Sprache Englisch
    Erscheinungsdatum 2023-11-22
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.3c02538
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel ; Online: An analysis of urban population structure and dynamics through the automated management of the registry office

    Athos Bellettini

    Statistica, Vol 71, Iss 1, Pp 3-

    2013  Band 8

    Schlagwörter Probabilities. Mathematical statistics ; QA273-280 ; Mathematics ; QA1-939 ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2013-05-01T00:00:00Z
    Verlag University of Bologna
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Buch ; Online: Lecture Notes on Mean Curvature Flow, Barriers and Singular Perturbations

    Bellettini, Giovanni

    (Publications of the Scuola Normale Superiore ; 12)

    2013  

    Abstract: The aim of the book is to study some aspects of geometric evolutions, such as mean curvature flow and anisotropic mean curvature flow of hypersurfaces. We analyze the origin of such flows and their geometric and variational nature. Some of the most ... ...

    Verfasserangabe by Giovanni Bellettini
    Serientitel Publications of the Scuola Normale Superiore ; 12
    Abstract The aim of the book is to study some aspects of geometric evolutions, such as mean curvature flow and anisotropic mean curvature flow of hypersurfaces. We analyze the origin of such flows and their geometric and variational nature. Some of the most important aspects of mean curvature flow are described, such as the comparison principle and its use in the definition of suitable weak solutions. The anisotropic evolutions, which can be considered as a generalization of mean curvature flow, are studied from the view point of Finsler geometry. Concerning singular perturbations, we discuss the convergence of the Allen-Cahn (or Ginsburg-Landau) type equations to (possibly anisotropic) mean curvature flow before the onset of singularities in the limit problem. We study such kinds of asymptotic problems also in the static case, showing convergence to prescribed curvature-type problems
    Schlagwörter Geometry ; Mathematics
    Sprache Englisch
    Umfang Online-Ressource (Approx. 350 p), online resource
    Verlag Scuola Normale Superiore
    Erscheinungsort Pisa ;s.l
    Dokumenttyp Buch ; Online
    ISBN 9788876424281 ; 9788876424298 ; 8876424288 ; 8876424296
    DOI 10.1007/978-88-7642-429-8
    Datenquelle Katalog der Technische Informationsbibliothek Hannover

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  8. Artikel ; Online: Reduced cytotoxicity of nanomaterials driven by nano-bio interactions: Case study of single protein coronas enveloping polymersomes.

    de Oliveira, Fernando A / Albuquerque, Lindomar J C / Castro, Carlos E / Riske, Karin A / Bellettini, Ismael C / Giacomelli, Fernando C

    Colloids and surfaces. B, Biointerfaces

    2022  Band 213, Seite(n) 112387

    Abstract: The protein adsorption onto poly(acrylic acid)-block-polystyrene ( ... ...

    Abstract The protein adsorption onto poly(acrylic acid)-block-polystyrene (PAA
    Mesh-Begriff(e) Adsorption ; Nanoparticles/chemistry ; Nanostructures ; Protein Corona/chemistry ; Serum Albumin, Bovine/chemistry
    Chemische Substanzen Protein Corona ; Serum Albumin, Bovine (27432CM55Q)
    Sprache Englisch
    Erscheinungsdatum 2022-02-07
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 1500523-9
    ISSN 1873-4367 ; 0927-7765
    ISSN (online) 1873-4367
    ISSN 0927-7765
    DOI 10.1016/j.colsurfb.2022.112387
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  9. Artikel ; Online: Self-Curing Glass Ionomer Cement Covered by Photopolymerizable Adhesive for Protection of Mucoperiosteal or Gingival Flap Sutures in Canine Oral Surgery

    Bellettini, Salviano Tramontin / da Silva, Regiane Pereira Baptista / Giovanelli, Diogo Fernandes / Lourenço, Emerson Luiz Botelho / da Cruz Alves Pereira, Elton / Sakumoto, Karina / Gonçalves, Daniela Dib / Pachaly, José Ricardo

    Animals. 2023 Aug. 17, v. 13, no. 16

    2023  

    Abstract: Periodontal disease is one of the main affections of the oral cavity of dogs. Its main complication is the formation of periapical abscess, which, when affecting the maxillary canine teeth, can lead to the formation of oronasal fistulae. The objective of ...

    Abstract Periodontal disease is one of the main affections of the oral cavity of dogs. Its main complication is the formation of periapical abscess, which, when affecting the maxillary canine teeth, can lead to the formation of oronasal fistulae. The objective of this study was to evaluate the efficiency of self-curing glass ionomer cement, covered by photopolymerizable adhesive, as a protective element for mucoperiosteal or gingival flap sutures in oral surgery of dogs. We studied 15 dogs from the clinical routine of the dental service of a teaching veterinary hospital, which needed oral surgeries to correct oronasal fistulae, defects or oral cavity communications, regardless of the causal agent. Group one (G1) was composed of seven animals that presented oronasal fistulae after the extraction of maxillary canine teeth compromised by severe periodontal disease. These fistulae were reduced by the double-mucoperiosteal-flap technique, 15 days after the dental extraction. Group two (G2) was composed of five other dogs that presented oronasal fistulae after the extraction of maxillary canine teeth compromised by severe periodontal disease. In this group, the fistulae were reduced by the single-flap technique, immediately after the dental extraction. Group three (G3) was composed of three animals, two of which presented oronasal fistulae due to maxillary fracture and the third one after excision of oral neoplasia. In all groups, simple interrupted sutures were used with 3.0 nylon, and a thin layer of self-curing glass ionomer cement was applied immediately over the operated area. After cement’s settling time, a thin layer of photopolymerizable adhesive was applied to the already polymerized cement. In G1, the protective cement was removed on average at 15 (±2) postoperative days, in G2 at 6 (±1) days and in G3 at 11 (±9) days. In the postoperative period, the animals received antibiotics and anti-inflammatory drugs, and they received their usual dry dog food diet. No Elizabethan collar or any other protective measure was used for suturing or the surgical wound. The result was healing of 100% of the oronasal fistulae, without suture dehiscence or the need for new surgical interventions. Thus, it was concluded that the use of self-curing glass ionomer cement covered by photopolymerizable adhesive was fully satisfactory, providing protection of sutures and surgical wounds and showing the potential for routine use in oral surgery in dogs.
    Schlagwörter abscess ; cement ; dehiscence ; diet ; dogs ; excision ; glass ; mouth ; neoplasms ; nylon ; periodontal diseases ; pet foods ; polymerization ; veterinary clinics
    Sprache Englisch
    Erscheinungsverlauf 2023-0817
    Erscheinungsort Multidisciplinary Digital Publishing Institute
    Dokumenttyp Artikel ; Online
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani13162648
    Datenquelle NAL Katalog (AGRICOLA)

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  10. Buch ; Online: Ethnic diversity and political participation

    Bellettini, Giorgio / Berti Ceroni, Carlotta / Monfardini, Chiara

    the role of individual income

    (CESifo working paper : Category 2: Public Choice ; no. 6772)

    2017  

    Abstract: We exploit a unique dataset merging data on individual socio-economic characteristics and political participation in an Italian municipality to investigate the relationship between ethnic diversity in residential neighborhoods and individuals' propensity ...

    Verfasserangabe Giorgio Bellettini, Carlotta Berti Ceroni, Chiara Monfardini
    Serientitel CESifo working paper : Category 2: Public Choice ; no. 6772
    Abstract We exploit a unique dataset merging data on individual socio-economic characteristics and political participation in an Italian municipality to investigate the relationship between ethnic diversity in residential neighborhoods and individuals' propensity to vote. We document a sizable negative impact of diversity on overall electoral turnout which reflects differential effects at the individual level, depending on household equivalent income. Specifically, we show that ethnic heterogeneity in the neighborhood reduces the political participation of the poor, while it fosters that of the more affluent. These results highlight a potential democratic deficit stemming from reduced and unequal electoral turnout in increasingly ethnically heterogeneous neighborhoods.
    Schlagwörter ethnic heterogeneity ; electoral turnout ; income
    Sprache Englisch
    Umfang 1 Online-Ressource (circa 47 Seiten), Illustrationen
    Erscheinungsort CESifo, Center for Economic Studies & Ifo Institute
    Dokumenttyp Buch ; Online
    Datenquelle ECONomics Information System

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