Search results for: Francesco Tisato

Items from 1 to 20 out of 73 results

article

Evidence of noncovalent complexes in some natural extracts: Ceylon tea and mate extracts

Sara Crotti, Sara D'Aronco, Laura Moracci, Francesco Tisato, more

Journal of Mass Spectrometry > 55 > 7 > n/a - n/a

Considering the high complexity of natural extracts, because of the presence of organic molecules of different chemical nature, the possibility of formation of noncovalent complexes should be taken into account. In a previous investigation, the formation of bimolecular complexes between caffeine and catechins in green tea extracts (GTE) has been experimentally proven by means of mass spectrometric...

article

Electrospray ionization study of tricarbonyl fac‐[Re(CO)₃(PO)(X)]‐type complexes: influence of ancillary co‐ligands in the release of carbon monoxide

Francesco Tisato, Marina Porchia, Antoni Shegani, Theodosia Maina, more

Rapid Communications in Mass Spectrometry > 32 > 15 > 1199 - 1206

Rationale fac‐[Re(CO)₃(PO)(X)]‐type complexes (PO = chelated bidentate tertiary phosphine (1‐), X = various neutral, mono‐dentate ligands) represent a class of compounds that meets the synthetic criteria for the preparation of potential carbon monoxide (CO) release molecules (CORMs) for medicinal application. The aim of our investigation was to achieve qualitative information whether the nature of...

article

Phthalates and heavy metals as endocrine disruptors in food: A study on pre-packed coffee products

Luca De Toni, Francesco Tisato, Roberta Seraglia, Marco Roverso, more

Toxicology Reports > 2017 > 4 > C > 234-239

Phthalate plasticizers and heavy metals are widely recognized to be pollutants that interfere with key developmental processes such as masculinization. We investigated the release of phthalates and heavy metals in coffee brewed from coffee packed in single-serve coffee containers made from different types of materials: metal, biodegradable and plastics. We detected with GC–MS small amounts phthalates,...

article

Interaction products of cytotoxic Cu(I) complexes with different solvent mixtures: an electrospray ionization mass spectrometry and density functional theory study

Francesco Tisato, Daniel Forrer, Sergio Tamburini, Andrea Vittadini, more

Rapid Communications in Mass Spectrometry > 31 > 2 > 179 - 192

Rationale [Cu(P)₄][BF₄]‐type complexes (P = tertiary phosphine) have shown significant antitumor activity. This biological property appears to be activated via formation of coordinative unsaturated [Cu(P)_n]⁺ species (n < 4), that may interact with various molecules starting from the solvent(s) in which they are dissolved. Aim of our study was to investigate the interaction of these species with...

article

Insights into the cytotoxic activity of the phosphane copper(I) complex [Cu(thp)4][PF6]

Francesco Tisato, Cristina Marzano, Valentina Peruzzo, Matteo Tegoni, more

Journal of Inorganic Biochemistry > 2016 > 165 > C > 80-91

The phosphane Cu(I) complex [Cu(thp)₄][PF₆], 1 (thp=tris(hydroxymethyl)phosphane) shows notable in vitro antitumour activity against a wide range of solid tumours. Uptake experiments performed in 1-treated colon cancer cells by atomic absorption spectrometry, reveal that the antiproliferative activity is consistent with the intracellular copper content. The solution chemistry of this agent, investigated...

chapter

Spatio-temporal normalization of data from heterogeneous sensors

Alessio Fanelli, Daniela Micucci, Marco Mobilio, Francesco Tisato

2015 10th International Joint Conference on Software Technologies (ICSOFT) > 1 > 1 - 6

2015 10th International Joint Conference on Software Technologies (ICSOFT)

The growing use of sensors in smart environments applications like smart homes, hospitals, public transportation, emergency services, education, and workplaces not only generates constantly increasing of sensor data, but also rises the complexity of integration of heterogeneous data and hardware devices. In order to get more accurate and consistent information on real world events, heterogeneous sensor...

chapter

Shifting Up Reflection from the Implementation to the Analysis Level

Walter Cazzola, Andrea Sosio, Francesco Tisato

Lecture Notes in Computer Science > Reflection and Software Engineering > Reflection and Software Engineering Foundations > 1-20

Traditional methods for object-oriented analysis and modeling focus on the functional specification of software systems, i.e., application domain modeling. Non-functional requirements such as fault-tolerance, distribution, integration with legacy systems, and so on, have no clear collocation within the analysis process, since they are related to the architecture and workings of the system itself rather...

chapter

Architectural Reflection Realising Software Architectures via Reflective Activities

Francesco Tisato, Andrea Savigni, Walter Cazzola, Andrea Sosio

Lecture Notes in Computer Science > Engineering Distributed Objects > Architectural Reasoning > 102-115

Architectural reflection is the computation performed by a software system about its own software architecture. Building on prev- ious research and on practical experience in industrial projects, in this pa- per we expand the approach and show a practical (albeit very simple) example ofa pplication of architectural reflection. The example shows how one can express, thanks to reflection, both functional...

chapter

Explaining Architectural Choices to Non-architects

Diego Bernini, Francesco Tisato

Lecture Notes in Computer Science > Software Architecture > Emerging Research Papers > 352-359

Explaining and motivating architectural choices are crucial points both in real system development and in computer scientists education. Stakeholders and students should fully understand from a high level perspective the rationale behind basic architectural choices. The paper proposes a communication approach that is complementary to established design processes and can be exploited in workshops that...

chapter

Language constructs for cooperative systems design

Flavio DePaoli, Francesco Tisato

Lecture Notes in Computer Science > Software Engineering — ESEC '93 > 329-343

This paper presents the basic constructs of CSDL, a language designed for both specifying and designing synchronous cooperative systems. It is part of a project that deals with the building of an environment supporting design and execution of computer-based multimedia cooperative systems. CSDL tries to address the difficulties of integrating different aspects of cooperative systems: cooperation control,...

book

Reflection and Software Engineering

Walter Cazzola, Robert J. Stroud, Francesco Tisato

Lecture Notes in Computer Science

article

Novel multicharged silver(I)–NHC complexes derived from zwitterionic 1,3-symmetrically and 1,3-unsymmetrically substituted imidazoles and benzimidazoles: Synthesis and cytotoxic properties

Marika Marinelli, Maura Pellei, Cristina Cimarelli, H.V. Rasika Dias, more

Journal of Organometallic Chemistry > 2016 > 806 > C > 45-53

Novel zwitterionic N-heterocyclic carbenes (NHCs) precursors, 1,3-symmetrically substituted NaHIm^1R,3R,4R″ (R = (CH₂)₃SO₃⁻, R″ = H or CH₃), NaHBzim^1R,3R (R = (CH₂)₃SO₃⁻), and 1,3-unsymmetrically substituted NaHIm^{1R,3R′,4R″} (R = (CH₂)₃SO₃⁻, R′ = CH₂C₆H₅, R″ = H or CH₃), [HBzim^1R,3R′]Br (R = (CH₂)₃SO₃Na, R′ = R or CH₂C₆H₅) have been synthesized and used in the synthesis of multicharged silver(I)–NHC...

chapter

A Space-Based Interoperability Model

Diego Bernini, Daniela Micucci, Francesco Tisato

Lecture Notes in Business Information Processing > Ontology, Conceptualization and Epistemology for Information Systems, Software Engineering and Service Science > Ontology Applications > 75-89

Software components may need to reason on thematic information that are usually contextualized in several and different dimensions. A person, for instance, may be physically located in a room; may play a specific role in an organization chart; and may be associated with an RFID tag in a set of identifiers. Moreover, software components may require thematic information which are produced by other software...

article

Falls as anomalies? An experimental evaluation using smartphone accelerometer data

Daniela Micucci, Marco Mobilio, Paolo Napoletano, Francesco Tisato

Journal of Ambient Intelligence and Humanized Computing > 2017 > 8 > 1 > 87-99

Life expectancy keeps growing and, among elderly people, accidental falls occur frequently. A system able to promptly detect falls would help in reducing the injuries that a fall could cause. Such a system should meet the needs of the people to which is designed, so that it is actually used. In particular, the system should be minimally invasive and inexpensive. Thanks to the fact that most of the...

article

Characterization of the designer drug deschloroketamine (2‐methylamino‐2‐phenylcyclohexanone) by gas chromatography/mass spectrometry, liquid chromatography/high‐resolution mass spectrometry, multistage mass spectrometry, and nuclear magnetic resonance

Giampietro Frison, Luca Zamengo, Flavio Zancanaro, Francesco Tisato, more

Rapid Communications in Mass Spectrometry > 30 > 1 > 151 - 160

RationaleClinical and forensic toxicology laboratories are challenged every day by the analytical aspects of the new psychoactive substances phenomenon. In this study we describe the analytical characterization of a new ketamine derivative, deschloroketamine (2‐methylamino‐2‐phenylcyclohexanone), contained in seized powders. MethodsThe analytical techniques employed include gas chromatography/mass...

article

Attentive Monitoring of Multiple Video Streams Driven by a Bayesian Foraging Strategy

Paolo Napoletano, Giuseppe Boccignone, Francesco Tisato

IEEE Transactions on Image Processing > 2015 > 24 > 11 > 3266 - 3281

In this paper, we shall consider the problem of deploying attention to the subsets of the video streams for collating the most relevant data and information of interest related to a given task. We formalize this monitoring problem as a foraging problem. We propose a probabilistic framework to model observer’s attentive behavior as the behavior of a forager. The forager, moment to moment, focuses its...

article

Electrospray ionization multi‐stage mass spectrometric study of the interaction products of the cytotoxic complex [Cu(thp)₄][PF₆] with methionine‐rich model peptides

Valentina Peruzzo, Francesco Tisato, Marina Porchia, Carlo Santini, more

Rapid Communications in Mass Spectrometry > 29 > 3 > 253 - 262

RATIONALEThe cytotoxic activity of the copper(I) complex [Cu(thp)₄][PF₆] (CP) (thp = tris(hydroxymethyl) phosphine) is correlated with its high accumulation in cancer cells. Human copper transporter 1 (hCtr1) has been described as the main trans‐membrane protein involved in cellular trafficking of physiological copper. Methionine‐rich peptide sequences incorporated in the extracellular domain of hCtr1...

chapter

A reasoning approach for modelling and predicting terroristic attacks in urban environments

Francesco Archetti, Divna Djordjevic, Ilaria Giordani, Raul Sormani, more

2014 International Carnahan Conference on Security Technology (ICCST) > 1 - 6

2014 International Carnahan Conference on Security Technology (ICCST)

During the last decade the world has witnessed a number of terroristic attacks and security incidents exposing numerous vulnerabilities of the urban environment. Hence the ability to proactively detect and even predict potential threats related to terrorist attacks is crucial for supporting government agencies in order to timely react (pro-act) to potentially alarming terrorist attacks. The work described...

article

The relationship between electrospray ionization behavior and cytotoxic activity of [M^I(P)₄]⁺‐type complexes (M = Cu, Ag and Au; P = tertiary phosphine)

Francesco Tisato, Laura Crociani, Marina Porchia, Plinio Di Bernardo, more

Rapid Communications in Mass Spectrometry > 27 > 17 > 2019 - 2027

RATIONALETo try to find a correlation between the antiproliferative activity of a series of [M^I(P)₄]⁺ complexes (M = Cu, Ag and Au; P = tertiary phosphine) and their stability at micromolar concentration under mass spectrometric conditions. METHODS[M^I(P)₄]⁺ complexes were investigated by positive ion electrospray ionization mass spectrometry with multiple collisional experiments using an ion trap...

article

Neutral and charged phosphine/scorpionate copper(I) complexes: Effects of ligand assembly on their antiproliferative activity

Marina Porchia, Alessandro Dolmella, Valentina Gandin, Cristina Marzano, more

European Journal of Medicinal Chemistry > 2013 > 59 > Complete > 218-226

Ligand-exchange reactions of copper(I) precursors ([Cu(CH ₃ CN) ₄ ]BF ₄ , CuCl) with a panel of bis(azolyl)borates or poly(pyrazolyl)methanes and a tertiary monodentate phosphine (PTA = 1,3,5-triaza-7-phosphaadamantane, PCN = tris(cyanoethyl)phosphine) produced two series of heteroleptic, either ‘2 + 1 + 1’- or ‘3 + 1’-type complexes, which have been characterized by elemental...

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INFONA - science communication portal

Search results for: Francesco Tisato

Evidence of noncovalent complexes in some natural extracts: Ceylon tea and mate extracts

Electrospray ionization study of tricarbonyl fac‐[Re(CO)₃(PO)(X)]‐type complexes: influence of ancillary co‐ligands in the release of carbon monoxide

Phthalates and heavy metals as endocrine disruptors in food: A study on pre-packed coffee products

Interaction products of cytotoxic Cu(I) complexes with different solvent mixtures: an electrospray ionization mass spectrometry and density functional theory study

Insights into the cytotoxic activity of the phosphane copper(I) complex [Cu(thp)4][PF6]

Spatio-temporal normalization of data from heterogeneous sensors

Shifting Up Reflection from the Implementation to the Analysis Level

Architectural Reflection Realising Software Architectures via Reflective Activities

Explaining Architectural Choices to Non-architects

Language constructs for cooperative systems design

Reflection and Software Engineering

Novel multicharged silver(I)–NHC complexes derived from zwitterionic 1,3-symmetrically and 1,3-unsymmetrically substituted imidazoles and benzimidazoles: Synthesis and cytotoxic properties

A Space-Based Interoperability Model

Falls as anomalies? An experimental evaluation using smartphone accelerometer data

Characterization of the designer drug deschloroketamine (2‐methylamino‐2‐phenylcyclohexanone) by gas chromatography/mass spectrometry, liquid chromatography/high‐resolution mass spectrometry, multistage mass spectrometry, and nuclear magnetic resonance

Attentive Monitoring of Multiple Video Streams Driven by a Bayesian Foraging Strategy

Electrospray ionization multi‐stage mass spectrometric study of the interaction products of the cytotoxic complex [Cu(thp)₄][PF₆] with methionine‐rich model peptides

A reasoning approach for modelling and predicting terroristic attacks in urban environments

The relationship between electrospray ionization behavior and cytotoxic activity of [M^I(P)₄]⁺‐type complexes (M = Cu, Ag and Au; P = tertiary phosphine)

Neutral and charged phosphine/scorpionate copper(I) complexes: Effects of ligand assembly on their antiproliferative activity

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