0000000000799301

AUTHOR

M. Venditti

showing 5 related works from this author

Searches for lepton number violation and resonances in K± → πμμ decays

2017

The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003–2004. A new upper limit on the rate of the lepton number violating decay K±→π∓μ±μ± is reported: B(K±→π∓μ±μ±)<8.6×10−11 at 90% CL. Searches for two-body resonances X in K±→πμμ decays (such as heavy neutral leptons N4 and inflatons χ ) are also presented. In the absence of signals, upper limits are set on the products of branching fractions B(K±→μ±N4)B(N4→πμ) and B(K±→π±X)B(X→μ+μ−) for ranges of assumed resonance masses and lifetimes. The limits are in the (10−11,10−9) range for resonance lifetimes below 100 ps.

leptonBEAM01 natural sciences7. Clean energyPhysics Particles & FieldsHigh Energy Physics - ExperimentLIMITSkaon physicsCERNIntermediate statelepton number violation neutrinos dark matter kaon physicsPhysicsVMSMLarge Hadron ColliderPhysicsCharge KaonsneutrinosNuclear and High Energy Physics; CERN; leptonsHigh Energy Physics - Experiment; Charge Kaons; Lepton number violationNuclear & Particles PhysicsCharged particlelcsh:QC1-999NEUTRAL HEAVY-LEPTONSPhysics Nuclearlepton number violationPhysical SciencesParticle physicsNuclear and High Energy Physicsleptonskaon decays lepton number violationNuclear and High Energy Physics lepton kaon meson lepton number violation NA48Socio-culturaleAstronomy & AstrophysicsUPPER-BOUNDSdark matterNuclear physics0202 Atomic Molecular Nuclear Particle And Plasma Physics0103 physical sciencesDARK-MATTERPARTICLES010306 general physicsScience & Technologykaon decays010308 nuclear & particles physicsBranching fractionResonanceInflatonLepton numberkaon mesonNA48High Energy Physics::Experimentlcsh:PhysicsLepton
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Outcomes of patients hospitalized with community-acquired, health care-associated, and hospital-acquired pneumonia

2009

Background: Traditionally, pneumonia has been classified as either community- or hospital-acquired. Although only limited data are available, health care-associated pneumonia has been recently proposed as a new category of respiratory infection. ``Health care associated pneumonia{'' refers to pneumonia in patients who have recently been hospitalized, had hemodialysis, or received intravenous chemotherapy or reside in a nursing home or long-term care facility. Objective: To ascertain the epidemiology and outcome of community-acquired, health care-associated, and hospital-acquired pneumonia in adults hospitalized in internal medicine wards. Design: Multicenter, prospective observational study…

Settore MED/09 - Medicina InternaPneumonia
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Outcomes of Patients Hospitalized with Community-Acquired, Health Care-Associated, and Hospital-Acquired Pneumonia

2009

Background Traditionally, pneumonia has been classified as either community- or hospital-acquired. Although only limited data are available, health care-associated pneumonia has been recently proposed as a new category of respiratory infection. "Health care-associated pneumonia" refers to pneumonia in patients who have recently been hospitalized, had hemodialysis, or received intravenous chemotherapy or reside in a nursing home or long-term care facility. Objective To ascertain the epidemiology and outcome of community-acquired, health care-associated, and hospital-acquired pneumonia in adults hospitalized in internal medicine wards. Design Multicenter, prospective observational study. Sett…

Malemedicine.medical_specialtyDrug-Related Side Effects and Adverse ReactionsHospital-acquired pneumoniaCommunity-acquired pneumoniaRenal DialysisRisk FactorsInternal medicineOutcome Assessment Health CareEpidemiologyPneumonia BacterialInternal MedicinemedicineHumansProspective StudiesIntensive care medicineAgedCross Infectionmedicine.diagnostic_testbusiness.industryMortality rateRespiratory infectionGeneral MedicineOdds ratiomedicine.diseaseLong-Term CareAnti-Bacterial AgentsNursing HomesCommunity-Acquired InfectionsPneumoniaItalyFemaleChest radiographbusinessDelivery of Health Care
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Role of multidrug-resistant pathogens in health-care-associated pneumonia

2011

Comment on: Rethinking the concepts of community-acquired and health-care-associated pneumonia. [Lancet Infect Dis. 2010]

medicine.medical_specialtybusiness.industryHealth-care-associated pneumoniamedicine.diseaseHealth care associatedSettore MED/45 - Scienze Infermieristiche Generali Cliniche E PediatricheNOMultidrug-resistant pathogensMultiple drug resistancePneumoniaInfectious Diseasesmedicinepneumonia multidrug-resistant pathogensHealth-care-associated pneumonia; Multidrug-resistant pathogensIntensive care medicinebusiness
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Clinical impact of broad-spectrum empirical antibiotic therapy in patients with healthcare-associated pneumonia: a multicenter interventional study

2012

Healthcare-associated pneumonia (HCAP) has been proposed as a new category of pneumonia distinct from community-acquired pneumonia (CAP). A multicenter observational study in 2008 finds that patients with HCAP have a mortality rate significantly higher than patients with CAP, and a worse outcome is associated at logistic regression analysis with a low adherence to empirical antibiotic therapy recommended by ATS/IDSA guidelines. We designed a prospective interventional study to establish whether administration of a broad-spectrum antibiotic therapy consistent with the 2005 ATS/IDSA guidelines has an effect on the clinical outcome of hospitalized patients with HCAP. All patients with HCAP pro…

AdultMalecommunity-acquired pneumonia; broad-spectrum empirical therapy; healthcare-associated pneumonia; multidrug-resistant pathogens; antibiotic therapymedicine.medical_specialtyCarbapenemcommunity-acquired pneumoniaSettore MED/09 - Medicina InternaAdolescentLogistic regressionNOYoung AdultCommunity-acquired pneumoniaDrug Resistance Multiple BacterialInternal medicinePneumonia BacterialInternal Medicinemedicineantibiotic therapyHumanspneumoniaProspective StudiesYoung adultIntensive care medicineProspective cohort studyAgedAged 80 and overCross Infectionbusiness.industryMortality ratehealthcare-associated pneumoniaHealthcare-associated pneumonia Community-acquired pneumonia Antibiotic therapy Multidrug-resistant pathogens Broad-spectrum empirical therapybroad-spectrum empirical therapyLength of StayMiddle Agedmedicine.diseaseSettore MED/45 - Scienze Infermieristiche Generali Cliniche E PediatricheAnti-Bacterial AgentsPneumoniamultidrug-resistant pathogensItalyPractice Guidelines as TopicEmergency MedicineDrug Therapy CombinationFemaleObservational studybusinessantibiotic therapy; pneumoniamedicine.drug
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