Search results for "error"

Prototyping of Land-SAF leaf area index algorithm with VEGETATION and MODIS data over Europe

2009

Abstract The Satellite Application Facility on Land Surface Analysis (Land-SAF) aims to provide land surface variables for the meteorological and environmental science communities from EUMETSAT satellites. This study assesses the performance of a simplified (i.e. random distribution of vegetation is assumed) version of the Land-SAF algorithm for the estimation of Leaf Area Index (LAI) when prototyped with VEGETATION (processed in CYCLOPES program) and MODIS reflectances. The prototype estimates of LAI are evaluated both by comparison with validated CYCLOPES and MODIS LAI products derived from the same sensors and directly through comparison with ground-based estimates. Emphasis is given on …

Il generale dalla Chiesa, il terrorismo, la mafia

2022

Il 3 settembre 1982 a Palermo veniva ucciso dalla mafia il generale Carlo Alberto dalla Chiesa. Nella storia dell’Italia repubblicana, dalla Chiesa era l’uomo per gli incarichi difficili, fin da quando aveva scelto di andare volontario nella Sicilia di Salvatore Giuliano. Successivamente le istituzioni democratiche si affidarono a lui in alcuni dei momenti più drammatici, chiamandolo a contrastare l’offensiva del terrorismo brigatista, sia prima che dopo il sequestro e l’assassinio di Aldo Moro. La sua ultima missione, conclusasi con l’attentato che lo colpì assieme alla moglie, fu quella di prefetto di Palermo, dove era stato inviato a fronteggiare un’escalation di violenza della mafia sen…

Dalla mafia al terrorismo e viceversa: il metodo dalla Chiesa

2017

In this paper it is assumed that the connection between the repression the mafia and terrorism are inseparable: without the fight against terrorism there would not have been the mafia; in the legal field, as well as that of investigative, penitentiary, political institutions and administrative. The connection between these two different criminal experiences, that have so bloody pages in the history of Italy Republican, is represented by the figure and the action of Carlo Alberto dalla Chiesa and from his "method" of work

«UNA PRESUNTA RAGION DI STATO»: MORO E IL SACRIFICIO. STORIA E STORIOGRAFIA DI UN CASO ESEMPLARE

2022

il saggio riflette sul caso Moro a partire dalla recente letteratura storiografica per ritornare ad uno dei momenti più drammatici della storia politica ed istituzionale della Repubblica italiana

Fully reliable a posteriori error control for evolutionary problems

2015

Diagnostic morphology of human eye-related storage disorders

1989

While retina and other ocular tissues are involved clinically and morphologically in a variety of lysosomal disorders, it is only the conjunctiva that is accessible by biopsy to morphological, i.e., electron microscopic recognition of the patient's individual lysosomal disease. However, this procedure is not utilized by many. Instead, skin and circulating lymphocytes are the most frequently obtained tissues for diagnostic investigation, as skin contains an abundance of diversified cell types for morphological examination and simultaneously fibroblasts to be cultured for biochemical investigation. It is the tissue most suitable for identifying lysosomal disorders and parallels in diagnostic …

Validity and reliability of Veloflex to measure active cervical range of motion in asymptomatic and symptomatic subjects

2021

Background Neck pain has a high annual incidence and decreases the cervical active range of motion (ROM). Clinicians use various methods to evaluate cervical range of motion (CROM) that some of them have also been proposed to give instant feedback. Accordingly, this study aimed to examine the validity and reliability of Veloflex (VF) to measure the CROM by comparison with the cervical range of motion (CROM) device, and to examine their test-retest reliability. Methods Thirty-eight healthy and 20 symptomatic participants were evaluated. Cervical flexion-extension, side bending, and rotations were tested in two sessions, first by the CROM and VF and in the second only with the VF. To evaluat…

Variance Thresholded EMD-CCA Technique for Fast Eye Blink Artifacts Removal in EEG

2017

International audience; Eye blink (EB) artifacts generated during eye blinks often contaminate electroencephalogram (EEG) signal. Previously Empirical Mode Decomposition (EMD) and Canonical Correlation Analysis (CCA), hybrid EMD-CCA were developed for EB artifact removal in EEG. However, EMD restricts the hybrid algorithm for real time implementation due to its slow processing nature, hence the algorithm has to be enhanced so that it can be a viable solution for real-time EB artifact removal. In this research work, to avoid applying EMD repetitively as and when EB artifacts occur, a method to use EMD minimally is approached. A suitable EB artifact region is detected through a variance thres…

On the Trustworthiness of Error-Correcting Codes

2007

The use of error-correcting codes protects data against accidental or intentional errors, but to what extent can a decoded message be trusted? To answer this question, one has to take the role of the receiver. First, the maximum number of errors Lambda acceptable for decoding is fixed. With the weight distribution, the probability of false decoding can be calculated, conditioned on such a Lambda-bounded strategy. This probability is a monotonously increasing function in the channel error probability p and in the maximum number of accepted errors Lambda. Therefore, pure error detection is more trustworthy than error correction. Moreover, for sufficiently small p, codes with the lexicographic…

Dentistry and Drug Adverse Events: Between Responsibilities and Regulations

2022

The purpose of this paper is to renew interest and attention to the medical history, prescription, and/or use of drugs during dental practice. The work analyzes the issue of the use of drugs in dentistry from both a clinical and a medical–legal point of view. The laws governing the matter were also taken into consideration, relating them to the roles of prescriber and user that the dentist can acquire. Analysis of various aspects of this matter demonstrates that it is necessary for dentists to know the drugs and medical substances, their characteristics and properties, related effects, and interactions in order to use them appropriately and adequately. Knowledge of interferences, reac…