35 results on '"Costalunga, A."'
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2. Pressure matching with optimized target phase for personal sound zone systems
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Anatolij Borroni, Marco Martalo, Alessandro Costalunga, Carlo Tripodi, and Riccardo Raheli
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- 2022
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3. Japanese Welfare State and Racism: Is the Myth of Social Homogeneity Overshadowing Discrimination Patterns on Migrants?
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Nicola Costalunga
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- 2022
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4. Face 2 Face. Dialoog vanuit Joods perspectief. Handleiding voor de leerling
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Anckaert, Luc and Costalunga, Pierre
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rechtvaardige oorlog ,diversiteit ,jodendom ,educatie ,sociale en ecologische vraagstukken ,geweld - Abstract
De wereld lijkt soms vol verschrikkelijke dingen. Terrorisme, oorlog, natuurrampen, geweld, armoede, ... Het lijkt wel of de wereld voortdurend in een strijd verwikkeld is om zichzelf te verbeteren. De wereld is een diverse plek, vol mensen met verschillende opvattingen. In deze wereld worden geweld en religie vaak met elkaar in verband gebracht. Maar hoe kan religie iets goeds laten zien? Hoe kan religie haar rijke traditie laten zien? In dit boek proberen we de joodse traditie haar eigen antwoord op deze vraag te laten formuleren. We gaan samen op reis en ontdekken meer over het Jodendom. nrpages: 69 status: published
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- 2021
5. Jodendom
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Anckaert, Luc and Costalunga, Pierre
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Jodendom ,Inleiding - Abstract
Voorstelling van het jodendom ispartof: In de fascinerende tuin van religies/wereldbeschouwingen. Een binnenperspectief. Handleiding voor de leerling pages:12-23 ispartof: pages:12-23 status: published
- Published
- 2021
6. Light-incubation effects on lateralisation of single unit responses in the visual Wulst of domestic chicks
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Orsola Rosa-Salva, Giacomo Costalunga, Uwe Mayer, Giorgio Vallortigara, and Dmitry Kobylkov
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Histology ,Brain development ,genetic structures ,Thalamus ,Stimulation ,Chick Embryo ,Development ,Biology ,Functional Laterality ,03 medical and health sciences ,0302 clinical medicine ,Animals ,Visual Pathways ,Incubation ,030304 developmental biology ,Light exposure ,Neurons ,0303 health sciences ,General Neuroscience ,Chick embryos ,Domestic chicks ,eye diseases ,Electrophysiology ,Lateralisation ,Visual Wulst ,Anatomy ,Chickens ,Neuroscience ,030217 neurology & neurosurgery - Abstract
Since the ground-breaking discovery that in-egg light exposure triggers the emergence of visual lateralisation, domestic chicks became a crucial model for research on the interaction of environmental and genetic influences for brain development. In domestic chick embryos, light exposure induces neuroanatomical asymmetries in the strength of visual projections from the thalamus to the visual Wulst. Consequently, the right visual Wulst receives more bilateral information from the two eyes than the left one. How this impacts visual Wulst’s physiology is still unknown. This paper investigates the visual response properties of neurons in the left and right Wulst of dark- and light-incubated chicks, studying the effect of light incubation on bilaterally responsive cells that integrate information from both eyes. We recorded from a large number of visually responsive units, providing the first direct evidence of lateralisation in the neural response properties of units of the visual Wulst. While we confirm that some forms of lateralisation are induced by embryonic light exposure, we found also many cases of light-independent asymmetries. Moreover, we found a strong effect of in-egg light exposure on the general development of the functional properties of units in the two hemispheres. This indicates that the effect of embryonic stimulation goes beyond its contribution to the emergence of some forms of lateralisation, with influences on the maturation of visual units in both hemispheres.
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- 2021
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7. Sodium adduct formation with graph-based machine learning can aid structural elucidation in non-targeted LC/ESI/HRMS
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Riccardo Costalunga, Sofja Tshepelevitsh, Helen Sepman, Meelis Kull, and Anneli Kruve
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Ions ,Machine Learning ,Spectrometry, Mass, Electrospray Ionization ,Isomerism ,Sodium ,Environmental Chemistry ,Biochemistry ,Spectroscopy ,Analytical Chemistry - Abstract
Non-targeted screening with LC/ESI/HRMS aims to identify the structure of the detected compounds using their retention time, exact mass, and fragmentation pattern. Challenges remain in differentiating between isomeric compounds. One untapped possibility to facilitate identification of isomers relies on different ionic species formed in electrospray. In positive ESI mode, both protonated molecules and adducts can be formed; however, not all isomeric structures form the same ionic species. The complicated mechanism of adduct formation has hindered the use of this molecular characteristic in the structural elucidation in non-targeted screening. Here, we have studied the adduct formation for 94 small molecules with ion mobility spectra and compared collision cross-sections of the respective ions. Based on the results we developed a fast support vector machine classifier with polynomial kernels for accurately predicting the sodium adduct formation in ESI/HRMS. The model is trained on five independent data sets from different laboratories and uses the graph-based connectivity of functional groups and PubChem fingerprints to predict the sodium adduct formation in ESI/HRMS. The validation of the model showed an accuracy of 74.7% (balanced accuracy 70.0%) on a dataset from an independent laboratory, which was not used in the training of the model. Lastly, we applied the classification algorithm to the SusDat database by NORMAN network to evaluate the proportion of isomeric compounds that could be distinguished based on predicted sodium adduct formation. It was observed that sodium adduct formation probability can provide additional selectivity for about one quarter of the exact masses and, therefore, shows practical utility for structural assignment in non-targeted screening.
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- 2022
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8. A behavioral approach to inversion-based control
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Aurelio Piazzi and Alessandro Costalunga
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0209 industrial biotechnology ,Signal design ,Inverse ,Inversion (meteorology) ,02 engineering and technology ,020901 industrial engineering & automation ,Control and Systems Engineering ,If and only if ,0202 electrical engineering, electronic engineering, information engineering ,Piecewise ,Applied mathematics ,020201 artificial intelligence & image processing ,Electrical and Electronic Engineering ,Mathematics - Abstract
A new simplified behavior theory is proposed to address inversion-based control for linear, nonminimum-phase SISO systems. The chosen space of signals is the set of piecewise C ∞ -functions and input–output pairs (as weak solutions) satisfy a differential–integral equation with additional smoothness requirements. A related key result is the output–input (or inverse) representation of the behavior set that leads to the solution of a general stable inversion problem where polynomially unbounded, noncausal desired outputs are allowed. It is shown that this problem has a solution if and only if the smoothness degree of the desired output is greater than or equal to the system relative degree minus one. When this straightforward condition is satisfied, a closed-form expression provides the inverse input. Then, an analysis on preaction and postaction control follows. Two examples are included showing the relevance of output signal design in control applications.
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- 2018
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9. Synthesis of virtual holonomic constraints for obtaining stable constraint dynamics
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Alessandro Costalunga and Luca Consolini
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0209 industrial biotechnology ,Computer science ,Feedback control ,020208 electrical & electronic engineering ,Holonomic constraints ,02 engineering and technology ,Invariant (physics) ,Mechanical system ,020901 industrial engineering & automation ,Generalized coordinates ,Control and Systems Engineering ,Control theory ,Stability theory ,Limit cycle ,0202 electrical engineering, electronic engineering, information engineering ,Electrical and Electronic Engineering - Abstract
A virtual holonomic constraint (VHC) is a relation among the generalized coordinates of a mechanical system that can be made invariant via feedback control. The autonomous dynamics of the system resulting on the enforcement of the VHC are called the constraint dynamics. This work presents a method for the synthesis of VHCs that guarantees the existence of an asymptotically stable limit cycle on the constraint dynamics.
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- 2018
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10. Synthesis and Analysis of Virtual Holonomic Constraints for Lagrangian Mechanical Systems
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Costalunga, Alessandro
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Geometric control ,Virtual holonomic constraints ,Mechanical systems ,Nonlinear systems ,ING-INF/04 - Abstract
A Virtual Holonomic Constraint (VHC) is a relationship among the generalized coordinates of a mechanical system which is made invariant by feedback control. In the last decades, the VHC approach has emerged as a valuable tool in motion control problems. The main contribution of this thesis is twofold. First, it presents a new synthesis procedure that generates feasible VHCs whose constrained dynamics possess a stable limit cycle. Second, it frames VHCs in a coordinate free formalism, based on a Riemannian geometry setting. This reformulation allows to give a clear geometrical interpretation of the inverse Lagrangian problem for the constrained system.
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- 2017
11. Lessons Learned in a Ball Fetch-And-Carry Robotic Competition
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Davide Valeriani, Isabella Salsi, Dario Lodi Rizzini, Marco Cigolini, Marco Patander, Alessandro Costalunga, Federico Parisi, Stefano Caselli, and Andrea Signifredi
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Artificial Intelligence ,Control and Systems Engineering ,Computer science ,Signal Processing ,Fetch ,Ball (bearing) ,Simulation - Published
- 2014
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12. Inverse feedforward control with output polynomial smoothing
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Alessandro Costalunga and Aurelio Piazzi
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Polynomial ,Control theory ,Linear system ,Feed forward ,Inverse ,Applied mathematics ,Feedforward neural network ,Process control ,Parameterized complexity ,Smoothing ,Mathematics - Abstract
A method of polynomial smoothing is presented for the inverse feedforward control of continuous-time, linear, nonminimum-phase SISO (single-input single-output) systems. Starting from an arbitrarily given output signal, a smoothing procedure is devised to obtain a delayed smoothed output for which stable input-output inversion can be applied. This procedure requires to solve a polynomial interpolating problem whose solution is given by a polynomial parameterized by the smoothing time parameter. Detailed expressions of the deduced inverse input are provided. The minimization of the smoothing time is also pursued in order to reduce the delay in the smoothed output. Examples highlight the proposed method. The aim of the presented approach is to achieve high-performances in a variety of possible control applications such as, e.g., those in process automation and mechatronics.
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- 2015
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13. Cyclosporine A in Reperfused Myocardial Infarction: The Multicenter, Controlled, Open-Label CYCLE Trial
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Filippo, Ottani, Roberto, Latini, Lidia, Staszewsky, Luigi, La Vecchia, Nicola, Locuratolo, Marco, Sicuro, Serge, Masson, Simona, Barlera, Valentina, Milani, Mario, Lombardi, Alessandra, Costalunga, Nadia, Mollichelli, Andrea, Santarelli, Nicoletta, De Cesare, Paolo, Sganzerla, Alberto, Boi, Aldo Pietro, Maggioni, and Ugo, Limbruno
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Male ,Dose-Response Relationship, Drug ,Ventricular Remodeling ,Myocardial Infarction ,Myocardial Reperfusion ,Middle Aged ,Coronary Angiography ,Ventricular Function, Left ,Electrocardiography ,Treatment Outcome ,Echocardiography ,Injections, Intravenous ,Cyclosporine ,Humans ,Female ,Prospective Studies ,Immunosuppressive Agents ,Follow-Up Studies - Abstract
Whether cyclosporine A (CsA) has beneficial effects in reperfused myocardial infarction (MI) is debated.This study investigated whether CsA improved ST-segment resolution in a randomized, multicenter phase II study.The authors randomly assigned 410 patients from 31 cardiac care units, age 63 ± 12 years, with large ST-segment elevation MI within 6 h of symptom onset, Thrombolysis In Myocardial Infarction (TIMI) flow grade 0 to 1 in the infarct-related artery, and committed to primary percutaneous coronary intervention, to 2.5 mg/kg intravenous CsA (n = 207) or control (n = 203) groups. The primary endpoint was incidence of ≥70% ST-segment resolution 60 min after TIMI flow grade 3. Secondary endpoints included high-sensitivity cardiac troponin T (hs-cTnT) on day 4, left ventricular (LV) remodeling, and clinical events at 6-month follow-up.Time from symptom onset to first antegrade flow was 180 ± 67 min; a median of 5 electrocardiography leads showed ST-segment deviation (quartile [Q]1 to Q3: 4 to 6); 49.8% of MIs were anterior. ST-segment resolution ≥70% was found in 52.0% of CsA patients and 49.0% of controls (p = 0.55). Median hs-cTnT on day 4 was 2,160 (Q1 to Q3: 1,087 to 3,274) ng/l in CsA and 2,068 (1,117 to 3,690) ng/l in controls (p = 0.85). The 2 groups did not differ in LV ejection fraction on day 4 and at 6 months. Infarct site did not influence CsA efficacy. There were no acute allergic reactions or nonsignificant excesses of 6-month mortality (5.7% CsA vs. 3.2% controls, p = 0.17) or cardiogenic shock (2.4% CsA vs. 1.5% controls, p = 0.33).In the CYCLE (CYCLosporinE A in Reperfused Acute Myocardial Infarction) trial, a single intravenous CsA bolus just before primary percutaneous coronary intervention had no effect on ST-segment resolution or hs-cTnT, and did not improve clinical outcomes or LV remodeling up to 6 months. (CYCLosporinE A in Reperfused Acute Myocardial Infarction [CYCLE]; NCT01650662; EudraCT number 2011-002876-18).
- Published
- 2015
14. Synthesis of virtual holonomic constraints with stable constraint dynamics
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Luca Consolini and Alessandro Costalunga
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Mechanical system ,Generalized coordinates ,Control theory ,Stability theory ,Limit cycle ,Feedback control ,Holonomic constraints ,Invariant (physics) ,Actuator ,Mathematics - Abstract
A virtual holonomic constraint (VHC) is a relation among the generalized coordinates of a mechanical system that can be made invariant via feedback control. The autonomous dynamics of the system resulting on the enforcement of the VHC are called the constraint dynamics. This work presents a method for the synthesis of VHCs that guarantees the existence of an asymptotically stable limit cycle on the constraint dynamics.
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- 2015
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15. Inheritance in oat (Avena sativa L.) of tolerance to soil aluminum toxicity
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Paulo Henrique de Oliveira, Cristiano Costalunga Gotuzzo, Joaquim Taizo Sawasato, Sandra Cristina Kothe Milach, and Luiz Carlos Federizzi
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Limiting factor ,food.ingredient ,Inheritance (genetic algorithm) ,Biology ,Heritability ,Horticulture ,Avena ,food ,Genotype ,Toxicity ,Botany ,Trait ,General Earth and Planetary Sciences ,Gene ,General Environmental Science - Abstract
Aluminum toxicity is a limiting factor for the expression of the yield potential in oat. The development of aluminum toxicity-tolerant genotypes is the cheapest and most feasible alternative for cultivation of soils with acid subsoil. Objectives of this study were to determine the gene action, number of genes and heritability of tolerance of oat genotypes to toxic aluminum concentrations. Parent genotypes and the F1 and F2 generations of some crossings plus the F3, F4, F5, BC1F1, and BC2F1 generations were discriminated by the analysis of root regrowth in plantlets exposed to aluminum. Additive gene action predominated among the genetic effects. Only one segregating gene was found which has multiple alleles, two for tolerance (Al1 and Al2) and one for sensitivity (al). The heritability of the trait was high, indicating that tolerant genotypes can be selected in early generations of improvement programs.
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- 2005
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16. The diet of Little Penguins (Eudyptula minor) at Phillip Island, Victoria, in the absence of a major prey—Pilchard (Sardinops sagax)
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Knowles R. Kerry, Ana Costalunga, and André Chiaradia
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0106 biological sciences ,Eudyptula minor ,Ecology ,Thyrsites atun ,Biology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,010605 ornithology ,Predation ,Fishery ,Engraulis ,Anchovy ,Seriolella brama ,Animal Science and Zoology ,Ornithology ,Pseudophycis ,Ecology, Evolution, Behavior and Systematics ,Nature and Landscape Conservation - Abstract
The diet of Little Penguins (Eudyptula minor) was investigated in December 1995 and during the 1996–97 breeding period at Phillip Island, Victoria, Australia. The composition of the diet in this study differed markedly from that reported previously. Pilchard (Sardinops sagax), once a major prey, had virtually disappeared from the diet and Anchovy (Engraulis australis) showed a substantial decrease in frequency of occurrence. Instead, penguins had taken a temporal succession of juveniles of Red Cod (Pseudophycis bachus), Barracouta (Thyrsites atun), and Blue Warehou (Seriolella brama). Little Penguins had lower and higher than average breeding success in the 1995–96 and 1996–97, respectively, suggesting that the absence of Pilchards itself did not necessarily reduce the breeding success of Little Penguins. These findings contrast with those recorded in the 1980s when the absences of Pilchard and Anchovy had a negative impact on the penguins' breeding performance.
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- 2003
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17. [Primary percutaneous coronary intervention and therapeutic hypothermia in comatose survivors after out-of-hospital cardiac arrest complicating acute myocardial infarction: a single-center experience]
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Chiara, Angeletti, Alfonso, Ielasi, Davide, Personeni, Filippo, Mamprin, Antonio, Silvestro, Antonio, Saino, Ester, Bertocchi, Alessandra, Costalunga, Roberto, Keim, and Maurizio, Tespili
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Adult ,Aged, 80 and over ,Male ,Myocardial Infarction ,Recovery of Function ,Middle Aged ,Patient Discharge ,Time-to-Treatment ,Treatment Outcome ,Hypothermia, Induced ,Risk Factors ,Feasibility Studies ,Humans ,Female ,Angioplasty, Balloon, Coronary ,Coma ,Emergencies ,Out-of-Hospital Cardiac Arrest ,Aged ,Follow-Up Studies ,Retrospective Studies - Abstract
Therapeutic hypothermia (TH) is associated with improved neurologic outcomes in comatose survivors of out-of-hospital cardiac arrest (OHCA). There are currently limited data on the outcomes of patients presenting with resuscitated OHCA in the setting of acute myocardial infarction. The aim of this study was to assess the outcomes of comatose survivors of OHCA complicating acute myocardial infarction treated with primary percutaneous coronary intervention (PCI) and TH.A retrospective cohort analysis was performed on all consecutive patients referred for primary PCI and TH between August 2008 and December 2013 in a single center. The primary endpoint was survival to hospital discharge with sufficient neurologic recovery (defined as Cerebral Performance Category score2).Among 886 consecutive patients referred for primary PCI, 24 were comatose survivors of OHCA complicating acute myocardial infarction. All these patients underwent primary PCI followed by TH. Median patient age was 59 (IQR 35-87) years and 11 (45.8%) patients had anterior ST-elevation myocardial infarction. Median OHCA-to-balloon time was 120 min (IQR 75-340) while median OHCA-to-TH initiation time was 250 min (IQR 180-310). Survival with sufficient neurologic recovery to enable discharge home was reached in 16 (66.7%) patients. Time between initiation of cardiopulmonary resuscitation (CPR) to return of spontaneous circulation (ROSC)20 min was associated with a lower occurrence of death and poor neurologic outcome compared to CPR-to-ROSC time ≥20 min (15.4 vs 54.5%, p=0.05). The occurrence of major bleeding was 8.3%, while no stent thrombosis was reported.TH in conjunction with primary PCI is feasible and associated with acceptable outcome in the majority of comatose survivors of OHCA complicating acute myocardial infarction, especially if CPR-to-ROSC time was20 min. Randomized studies are needed to better assess the superiority of TH and primary PCI vs primary PCI alone in this complex subset of OHCA patients.
- Published
- 2014
18. Outcomes following primary percutaneous coronary intervention for unprotected left main-related ST-segment elevation myocardial infarction
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Chiara Angeletti, Antonio Silvestro, Alfonso Ielasi, Antonio Saino, Maurizio Tespili, Alessandra Costalunga, and Davide Personeni
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Male ,medicine.medical_specialty ,medicine.medical_treatment ,Population ,Shock, Cardiogenic ,Sudden cardiac death ,Percutaneous Coronary Intervention ,Internal medicine ,medicine ,Humans ,Myocardial infarction ,education ,Anterior Wall Myocardial Infarction ,Killip class ,Aged ,Retrospective Studies ,Aged, 80 and over ,education.field_of_study ,Ejection fraction ,business.industry ,Cardiogenic shock ,Mortality rate ,Percutaneous coronary intervention ,General Medicine ,Middle Aged ,medicine.disease ,Treatment Outcome ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,business - Abstract
INTRODUCTION Unprotected left main (ULM) related ST-segment elevation myocardial infarction (STEMI) is a severe event, often leading to circulatory failure and/or sudden cardiac death. Although high-risk ULM thrombosis populations treated by primary percutaneous coronary intervention (PPCI) have been previously described, very little is known regarding the outcomes following PPCI for ULM-related STEMI in a hospital without on-site surgical back-up. METHODS A retrospective cohort analysis was performed on all consecutive patients who underwent PPCI for ULM-related STEMI in a single center. The primary end-point was to assess in-hospital mortality in the overall population and according to the presence/absence of cardiogenic shock at admission. RESULTS Between October 2006 and December 2012, 1094 patients underwent PPCI for STEMI. PPCI for ULM-related STEMI was performed in 34 (3.1%) patients. Among these, 22 (64.7%) were in cardiogenic shock at admission. Baseline mean ejection fraction was lower (P = 0.008), whereas the prevalence of patients with pre-procedural cardiac arrest and Killip Class III-IV was significantly higher in the cardiogenic shock (P = 0.05 and P
- Published
- 2014
19. Treatment of refractory heart failure with a percutaneous circulatory support device
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Luca Lorini, Alessandra Costalunga, Attilio Jacovoni, Carmelo Mammana, Antonello Gavazzi, Maurizio Tespili, Umbertina Veritti, Paolo Ferrazzi, Mammana, C, Tespili, M, Costalunga, A, Jacovoni, A, Veritti, U, Lorini, F, Ferrazzi, P, and Gavazzi, A
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medicine.medical_specialty ,Percutaneous ,medicine.medical_treatment ,Circulatory-assist device ,Hemodynamics ,Internal medicine ,Medicine ,Humans ,Donor shortage ,Intensive care medicine ,Refractory heart failure ,Aged ,Heart transplantation ,Heart Failure ,business.industry ,General Medicine ,medicine.disease ,Transplantation ,Italy ,Heart failure ,Circulatory system ,Cardiology ,Heart Transplantation ,Female ,Heart-Assist Devices ,Cardiology and Cardiovascular Medicine ,business - Abstract
End-stage heart failure refractory to medical therapy is a clinical challenge. Heart transplantation is considered the best strategy, but it remains burdened with substantial limitations due to the scanty availability of facilities with a transplant programme, donor shortage, and unpredictable waiting lists. Alternatively, assist devices may allow an improvement of the haemodynamic conditions, modifying the history of end-stage heart failure and introducing new management strategies. The goal of a minimally invasive short-term circulatory support device in the treatment of end-stage heart failure patients awaiting heart transplant is to restore the haemodynamic conditions and to improve end-organ dysfunction, with a low incidence of major adverse cardiac events. This report describes the first implantation in Italy of a new percutaneous circulatory support device, the Cancion cardiac recovery system, in a patient with severe end-stage heart failure listed for transplantation.
- Published
- 2006
20. Minimum-time feedforward control of an open liquid container
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Marco Vezzosi, Luca Consolini, Aurelio Piazzi, and Alessandro Costalunga
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Engineering ,Test bench ,Linear programming ,business.industry ,Feed forward ,Control engineering ,Motion control ,Jerk ,Acceleration ,Control theory ,Container (abstract data type) ,Motion planning ,business ,ComputingMethodologies_COMPUTERGRAPHICS - Abstract
The paper considers a minimum-time feedforward motion control problem for an open container carrying a liquid. The proposed solution is a time-continuous acceleration planning that avoids liquid spilling and satisfies amplitude constraints on jerk, acceleration, and velocity of the container moving on a linear guide of an automation line. This solution is based on linear programming and can provide rest-to-rest liquid motion planning or, alternatively, a rest-to-disequilibrium planning with bounded post-motion liquid oscillations. Experimental results on a test bench prototype show the effectiveness of the presented approach.
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- 2013
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21. Segmentation of histological images using a metaheuristic-based level set approach
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Pablo Mesejo, Davide Valeriani, Stefano Cagnoni, Alessandro Costalunga, Intelligent Bio-Inspired Systems lab (IBISlab), Università degli studi di Parma = University of Parma (UNIPR), and European Project: 238819,EC:FP7:PEOPLE,FP7-PEOPLE-ITN-2008,MIBISOC(2009)
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Level set method ,business.industry ,[INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV] ,Particle swarm optimization ,Differential Evolution ,Level Set method ,Image segmentation ,Real-Coded Genetic Algorithms ,Image Segmentation ,Hippocampus ,[INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI] ,Level set ,Sørensen–Dice coefficient ,Particle Swarm Optimization ,[INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV] ,Test set ,[INFO.INFO-IM]Computer Science [cs]/Medical Imaging ,Computer vision ,Segmentation ,Artificial intelligence ,business ,Metaheuristic ,Histological Images ,Mathematics - Abstract
International audience; This paper presents a two-phase method to segment the hippocampus in histological images. The first phase represents a training stage where, from a training set of manually labelled images, the hippocampus representative shape and texture are derived. The second one, the proper segmentation, uses a metaheuristic to evolve the contour of a geometric deformable model using region and texture information. Three different metaheuristics (real-coded GA, Particle Swarm Optimization and Differential Evolution) and two classical segmentation algorithms (Chan & Vese model and Geodesic Active Contours) were compared over a test set of 10 histological images. The best results were attained by the real-coded GA, achieving an average and median Dice Coefficient of 0.72 and 0.77, respectively.
- Published
- 2013
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22. Implementation of an ICF-based project/program in a pediatric neuro-rehabiltation hospital: follow-up evaluation by stakeholders
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Sabrina Pasqualotti, Monica Costalunga, Andrea Martinuzzi, Elena Carraro, Silvana Betto, and Elisa Petacchi
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Male ,medicine.medical_specialty ,Process (engineering) ,medicine.medical_treatment ,media_common.quotation_subject ,Pilot Projects ,Rehabilitation Centers ,Perceived quality ,Disability Evaluation ,Nursing ,International Classification of Diseases ,Surveys and Questionnaires ,Medicine ,Humans ,Quality (business) ,Resource consumption ,Child ,Neurorehabilitation ,media_common ,Patient Care Team ,Rehabilitation ,business.industry ,Disabled Children ,Follow up evaluation ,Vocabulary, Controlled ,Child, Preschool ,Physical therapy ,Female ,Nervous System Diseases ,business ,Follow-Up Studies ,Program Evaluation - Abstract
We follow-up on the experience started 3 years ago with the introduction in a pediatric neurorehabilitation hospital of an ICF-CY based form for rehabilitation projecting/programming, by probing the impact that this process had on stakeholders to establish its long term cost/benefit ratio.Two hundred and two rehabilitation projects/programs forms for children with various health conditions admitted for intensive rehabilitation were completed in 36 months. Assessment was carried out by (i) evaluating the compliance with the new process design, (ii) assessing the resource consumption and (iii) appraising the perceived change in terms of added quality. A structured questionnaire built by clustering statements about added quality determinants in rehabilitation expressed by team members and families, explored the perceived change in the rehabilitation process associated with the introduced form with a 0-5 Likert-type scaling.(i) Most projects/programs forms were filled appropriately, allowing the link of functional problems, objectives, rehabilitation activities, and outcome indicators. (ii) No additional resources were needed to implement the process. (iii) Questionnaire scores were 3.25 SD 0.2 for team members and 4.05 SD 0.2 for families, showing moderate to relevant appreciation in particular by families.The results confirmed the feasibility of ICF implementation in the clinical setting. ICF based project/program was appreciated by both team members and caregivers as adding quality to the rehabilitation process. These results further encourage the implementation of ICF based tools in the clinical sector.
- Published
- 2012
23. [Effect of carvedilol on outcome after myocardial infarction in patients with left ventricular dysfunction: the CAPRICORN randomized trial]
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A, Costalunga and A, Gavazzi
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Propanolamines ,Adrenergic beta-Antagonists ,Carbazoles ,Myocardial Infarction ,Humans ,Multicenter Studies as Topic ,Carvedilol ,Prognosis ,Randomized Controlled Trials as Topic - Published
- 2002
24. Color Doppler study of mitral regurgitation during percutaneous transluminal coronary angioplasty
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Elisabetta Rossi, Faustino Pennestri, Alessandra Costalunga, Mario Attilio Mazzari, Luigi M. Biasucci, Rocco Mongiardo, Antonella Lombardo, Grazia Alecce, Marco Testa, and Francesco Loperfido
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Male ,medicine.medical_specialty ,Coronary Disease ,Coronary Angiography ,Coronary artery disease ,Electrocardiography ,Mitral valve ,Internal medicine ,medicine.artery ,medicine ,Humans ,cardiovascular diseases ,Circumflex ,Artery occlusion ,Angioplasty, Balloon, Coronary ,Aged ,Mitral regurgitation ,Analysis of Variance ,Ejection fraction ,Chi-Square Distribution ,business.industry ,Incidence ,Mitral Valve Insufficiency ,Middle Aged ,medicine.disease ,Echocardiography, Doppler ,medicine.anatomical_structure ,Right coronary artery ,Proximal Circumflex Artery ,Acute Disease ,cardiovascular system ,Cardiology ,Mitral Valve ,Female ,Radiology ,Cardiology and Cardiovascular Medicine ,business - Abstract
Mitral regurgitation (MR) was evaluated by color Doppler echocardiography during percutaneous transluminal coronary angioplasty (PTCA) in 28 patients with one-vessel artery disease (left anterior descending artery in 11, right coronary artery in 8, and circumflex artery in 9) and normal left ventricular function. In all three groups, left ventricular ejection fraction (LVEF) and wall motion score index (WMSI) decreased significantly during artery occlusion in comparison with baseline values (no differences among various groups). Anterior and inferior akinesia/dyskinesia was observed in all patients during left anterior descending and right coronary artery occlusion, respectively. Lateral akinesia/dyskinesia was induced by occlusion of the circumflex artery in six patients (all with proximal lesions [p0.05 vs the other two groups]) and the right coronary artery in one. Only the six patients with circumflex artery occlusion showed PTCA-related MR (2+ in two). LVEF and WMSI were similar during artery occlusion in patients with and without MR. Neither mitral leaflet prolapse nor anulus dilation occurred during PTCA in any of the patients. Our data show that during brief occlusion of the proximal circumflex artery, functional MR (usually mild) frequently occurs in relation to specific lateral akinesia/dyskinesia.
- Published
- 1994
25. Cardiac ultrasound: state of the art
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F, Loperfido, A, Lombardo, A, Costalunga, M, Testa, E, Rossi, C, Vigna, G, Rinelli, and F, Pennestrì
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Heart Defects, Congenital ,Heart Diseases ,Echocardiography ,Humans ,Echocardiography, Doppler - Published
- 1993
26. Doppler analysis of portal vein flow in tricuspid regurgitation
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F, Loperfido, A, Lombardo, C M, Amico, C, Vigna, M, Testa, E, Rossi, A, Costalunga, F, Pennestri, and L M, Biasucci
- Subjects
Adult ,Liver Cirrhosis ,Male ,Time Factors ,Portal Vein ,Systole ,Biopsy ,Atrial Function, Right ,Hepatic Veins ,Middle Aged ,Sensitivity and Specificity ,Echocardiography, Doppler ,Tricuspid Valve Insufficiency ,Echocardiography ,Regional Blood Flow ,Pulsatile Flow ,Humans ,Female ,Jugular Veins ,Blood Flow Velocity ,Aged - Abstract
Portal and hepatic vein flow-velocity profiles were examined by pulsed Doppler in 66 patients with tricuspid regurgitation (color Doppler grading: severe: 37, moderate: 18; mild: 11) and 20 normal subjects to determine if portal vein flow analysis is useful in the evaluation of tricuspid regurgitation. Portal vein flow was defined as one of the following categories: subcontinuous (dependent on respiration), pulsatile systolic (not inverted), inverted after systole, and continuous (not dependent on respiration). An index of portal vein flow pulsatility was also calculated. Standard classification of hepatic vein flow pattern was performed. Portal vein flow was pulsatile in 20% of normals subjects, and in 27.3% 44.5% and 51.3% of patients with respectively mild, moderate and severe tricuspid regurgitation; portal vein flow was inverted after systole in further 32.4% of patients with severe tricuspid regurgitation. Portal vein pulsatility index correlated with color Doppler grading of tricuspid regurgitation (r:0.63; p0.001) and right ventricle-atrium pressure gradient (r:0.39; p0.01). However, when compared with hepatic vein flow, both sensitivity and specificity of quantitative portal vein flow analysis was less reliable in diagnosing and grading tricuspid regurgitation. In particular, in patients with severe tricuspid regurgitation, the portal vein flow pattern was quite variable (pulsatile in 19 patients, inverted after systole in 12, and continuous in six). Liver biopsy was performed in nine patients, four of them with severe tricuspid regurgitation and continuous portal vein flow. Histology showed severe liver fibrosis in all four.(ABSTRACT TRUNCATED AT 250 WORDS)
- Published
- 1993
27. Reproducibility in circadian rhythm of ventricular premature complexes
- Author
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U. Manzoli, A. G. Rebuzzi, Gaetano Antonio Lanza, Maria Cristina Cortellessa, Alessandra Costalunga, Enrico Scabbia, Sergio Tamburi, and Michele Lucente
- Subjects
Adult ,Male ,medicine.medical_specialty ,Cardiac Complexes, Premature ,Group B ,Coronary artery disease ,Basal (phylogenetics) ,Rhythm ,Heart Rate ,Internal medicine ,medicine ,Humans ,Circadian rhythm ,Morning ,Aged ,medicine.diagnostic_test ,business.industry ,Middle Aged ,medicine.disease ,Circadian Rhythm ,Anesthesia ,Ambulatory ,Cardiology ,Electrocardiography, Ambulatory ,Female ,Cardiology and Cardiovascular Medicine ,business ,Electrocardiography - Abstract
To evaluate the existence and reproducibility of a circadian rhythm of ventricular premature complexes (VPCs), 38 patients (mean age 57 +/- 17 years) with greater than or equal to VPCs/hour were studied with 24-hour electrocardiogram Holter monitoring. Nineteen patients had coronary artery disease and 19 had structurally normal hearts. A second Holter electrocardiogram was recorded in all patients from 2 to 47 days (mean 11) after the first. Chronobiologic analysis was made by single and mean cosinor methods. A significant and similar circadian rhythm of VPCs was found in the total sample both on the first (mesor 399, acrophase at 15:08, p less than 0.01) and the second day (mesor 306, acrophase at 14:47, p less than 0.05), with 2 main peaks, the first in the late morning and the second in the afternoon. However, only 18 patients (47%, group A) had a significant individual circadian rhythm of VPCs on both days, whereas 20 (53%, group B) did not have a significant rhythm in greater than or equal to 1 day. A high reproducibility of the circadian rhythm of VPCs was found in group A patients, with a difference of 2.1 +/- 1.8 hours between the acrophases of the 2 days, whereas the difference was 4.4 +/- 3.3 hours in group B patients (p less than 0.01). Among group A patients, 14 (78%) had a VPC rhythm with acrophase occurring during waking hours, whereas the acrophase of 4 (22%) occurred during the night. The reproducibility of the circadian rhythm of VPCs was not influenced by gender, presence of coronary disease, medical therapy, basal VPC number, or day-to-day variability of VPCs, although group A patients were older than group B patients (p less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
- Published
- 1990
28. Systemic and pulmonary ventricular function after surgery in congenital heart diseases
- Author
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A Ghilardi, Ospedali Riuniti, A Borghi, A Piti, M Rondi, G Medolago, and A Costalunga
- Subjects
medicine.medical_specialty ,Ventricular function ,business.industry ,Internal medicine ,medicine ,Cardiology ,Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine ,business ,Surgery - Published
- 1999
- Full Text
- View/download PDF
29. Lung perfusion scintigraphy after balloon angioplasty of pulmonary artery stenosis
- Author
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A Ghilardi, M Rondi, A Piti, A Costalunga, A Borghi, and G Medolago
- Subjects
medicine.medical_specialty ,Lung perfusion scintigraphy ,Pulmonary artery stenosis ,business.industry ,Angioplasty ,medicine.medical_treatment ,Internal medicine ,medicine ,Cardiology ,Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine ,Balloon ,business - Published
- 1999
- Full Text
- View/download PDF
30. Role of stunned myocardium in recovery of function and perfusion during 6 months after acute myocardial infarction
- Author
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M Rondi, A Piti, G Medolago, A Ghilardi, and A Costalunga
- Subjects
medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Cardiology ,Electrocardiography in myocardial infarction ,Radiology, Nuclear Medicine and imaging ,Myocardial infarction ,Cardiology and Cardiovascular Medicine ,business ,medicine.disease ,Perfusion - Published
- 1997
- Full Text
- View/download PDF
31. L'organizzazione in province e regioni ecclesiastiche
- Author
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Marcelo Costalunga
- Subjects
Iglesia ,Religious studies ,General Medicine ,Provincias ,Law ,Regiones - Published
- 1982
32. Cardiac ultrasound: State of the art
- Author
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Loperfido, F., Lombardo, A., Costalunga, A., Testa, M., Esther Rossi, Vigna, C., Rinelli, G., and Pennestri, F.
33. [rTPA and streptokinase in acute myocardial infarct. Clinical instrumental evaluation of the 2 treatments]
- Author
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Ag, Rebuzzi, Carlo Trani, Pisanò E, Costalunga A, Ga, Lanza, and Coppola E
- Subjects
Electrocardiography ,Heparin ,Tissue Plasminogen Activator ,Ambulatory ,Settore MED/11 - MALATTIE DELL'APPARATO CARDIOVASCOLARE ,Electrocardiography, Ambulatory ,Myocardial Infarction ,Humans ,Streptokinase ,Clinical Enzyme Tests ,Middle Aged ,Creatine Kinase ,Aged - Abstract
Fifty-four patients with acute myocardial infarction were treated with thrombolytic therapy (27 with rTPA and 27 with streptokinase). In all the subjects CK was monitored (every 3 hours) and ergometric test, echocardiogram, and 24 hours holter ecg were performed in the pre-discharge period. In 22 of the patients, coronary angiography was also performed. No differences were shown between the two groups of patients as regards CK values and ejection fraction. Repetitive ventricular premature beats were registered without difference between the two groups (23% in patients treated with SK and 18% in the patients treated with rTPA). No bleeding events were shown in the patients treated with rTPA without calciparin. On the other hand no difference there was between patients treated with rTPA + calciparin and patients treated with SK with or without calciparin.
34. Méthodes de traitement des sols contaminés par des métaux lourds
- Author
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Costalunga, M.
35. Casual versus 24-hour ambulatory blood pressure recording in the evaluation of chronic administration of sustained-release verapamil
- Author
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Cardillo, C., Savi, L., Musumeci, V., Nadia MORES, Mettimano, M., Costalunga, A., Guerrera, G., Melina, D., and Folli, G.
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