0000000000982368

AUTHOR

Alberto Riva

0000-0002-6928-8589

showing 3 related works from this author

OCTOCAM: A fast multichannel imager and spectrograph for the 10.4m GTC

2010

OCTOCAM is a multi-channel imager and spectrograph that has been proposed for the 10.4m GTC telescope. It will use dichroics to split the incoming light to produce simultaneous observations in 8 different bands, ranging from the ultraviolet to the near-infrared. The imaging mode will have a field of view of 2' x 2' in u, g, r, i, z, J, H and Ks bands, whereas the long-slit spectroscopic mode will cover the complete range from 4,000 to 23,000 {\AA} with a resolution of 700 - 1,700 (depending on the arm and slit width). An additional mode, using an image slicer, will deliver a spectral resolution of over 3,000. As a further feature, it will use state of the art detectors to reach high readout…

PhysicsGran Telescopio Canariasbusiness.industryResolution (electron density)Near-infrared spectroscopyAstrophysics::Instrumentation and Methods for AstrophysicsFOS: Physical sciencesField of viewlaw.inventionTelescopeOpticslawObservatorySpectral resolutionbusinessAstrophysics - Instrumentation and Methods for AstrophysicsInstrumentation and Methods for Astrophysics (astro-ph.IM)Spectrograph
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Can Clinical and Surgical Parameters Be Combined to Predict How Long It Will Take a Tibia Fracture to Heal? A Prospective Multicentre Observational S…

2018

Background. Healing of tibia fractures occurs over a wide time range of months, with a number of risk factors contributing to prolonged healing. In this prospective, multicentre, observational study, we investigated the capability of FRACTING (tibia FRACTure prediction healING days) score, calculated soon after tibia fracture treatment, to predict healing time.Methods. The study included 363 patients. Information on patient health, fracture morphology, and surgical treatment adopted were combined to calculate the FRACTING score. Fractures were considered healed when the patient was able to fully weight-bear without pain.Results. 319 fractures (88%) healed within 12 months from treatment. Fo…

MaleGenetics and Molecular Biology (all)Immunology and Microbiology (all)lcsh:MedicineTibia fracture multicentre observational studyTibia Fracturefracture; healing; tibiaBiochemistry0302 clinical medicineOsteogenesisMedicineAdolescent; Adult; Female; Fracture Healing; Humans; Male; Middle Aged; Osteogenesis; Prospective Studies; Reproducibility of Results; Tibia; Tibial Fractures; Treatment Outcome; Young AdultProspective Studies030212 general & internal medicineYoung adultProspective cohort studyFracture Healing030222 orthopedicsGeneral MedicineMiddle Agedtibia fractureTreatment OutcomeAdolescent; Adult; Female; Fracture Healing; Humans; Male; Middle Aged; Osteogenesis; Prospective Studies; Reproducibility of Results; Tibia; Tibial Fractures; Treatment Outcome; Young Adult; Biochemistry Genetics and Molecular Biology (all); Immunology and Microbiology (all)Femaletibia fracturetibia FRACTure prediction healINGResearch ArticleAdultmedicine.medical_specialtyArticle SubjectAdolescentBone healingGeneral Biochemistry Genetics and Molecular BiologyNOYoung Adult03 medical and health sciencesHumansIn patientTibiaTime rangetibia FRACTure prediction healINGTibiaGeneral Immunology and Microbiologybusiness.industrylcsh:RReproducibility of ResultsSurgeryTibial FracturesObservational studybusinessBiochemistry Genetics and Molecular Biology (all); Immunology and Microbiology (all)
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Detection of the high z GRB 080913 and its implications on progenitors and energy extraction mechanisms*

2010

We present multiwavelength observations of one of the most distant gamma-ray bursts detected so far, GRB080913. Based on these observations, we consider whether it could be classified as a short-duration GRB and discuss the implications for the progenitor nature and energy extraction mechanisms. Methods. Multiwavelength X-ray, near IR and millimetre observations were made between 20.7 h and ∼16.8 days after the event. Results. Whereas a very faint afterglow was seen at the 3.5m CAHA telescope in the nIR, the X-ray afterglow was clearly detected in both Swift and XMM-Newton observations. An upper limit is reported in the mm range. We have modeled the data assuming a collimated θ0 3◦ blast wa…

PhysicsRange (particle radiation)Event horizonAstrophysics (astro-ph)Cosmology: observationsFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysicsRedshiftAfterglowphotometric [techniques]techniques: photometricSpace and Planetary ScienceGRB 090423MillimeterGamma-ray burstobservations [Cosmology]stars: gamma-ray bursts: individual: GRB 080913Energy (signal processing)gamma-ray bursts: individual: GRB 080913 [stars]
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