3,082 research outputs found

    I Suoli su substrati acidi in Sardegna: nota 1.: indagine preliminare sui suoli del Massiccio del Monte Limbara

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    In this first note the Author describes geology, morphology, climate and vegetation of the Limbara massif and reports the first results of the pedological study. The soils differ according to the differentiated altimetric position and vegetative cover; above 1000 meters they are acid and present a strong accumulation of organic matter. These soils have been dassified as Umbrepts. Below 1000 meters the soils become less acid and the organic matter content decreases, they have been classified as Ochrepts and Orthents

    Ancora sul lavoro pubblico: variazioni e modulazioni sul tema

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    L’idea è stata quella di raccogliere, per poi suggerire, attraverso una selezione di brani di diversi Autori, spunti di riflessione sulle questioni di fondo che il processo di contrattualizzazione/privatizzazione del pubblico impiego pone al giuslavorista, chiamato da tempo a considerare la fattispecie tipica di riferimento del diritto del lavoro inclusiva del rapporto di lavoro alle dipendenze delle pubbliche amministrazioni. Tali questioni, strettamente correlate, ineriscono, da un lato, l’incidenza della natura pubblica del datore di lavoro sul regime contrattuale del rapporto di lavoro privatizzato, dall’altro, l’incidenza del “vincolo di scopo” sull’ampiezza e sulla qualità dell’obbligazione dedotta in contratto dal pubblico dipendente. This study gathers the contributions of several academics with the view of offering a critical approach to fundamental issues relating to the process of contractualization/privatization of public sector employment law, as frequently tackled by labour lawyers in trying to address the notion of employment contract in a comprehensive way. These issues, all closely connected, relate to the public status of the employer vis a vis the (privatized) employment contract and to the impact of the peculiar public purpose in setting out the boundaries and characteristics of the relevant employment obligation

    I Suoli su substrati acidi in Sardegna: nota 3: alcune osservazioni sui suoli del versante sud-est del Massiccio del Limbara

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    The Authors describes principal soils of the SE-facing slopes of Limbara relief. Lithic Haplumbrepts are the principal soils above 1100 m, Lithic and Tipic Xerochrepts are widely distributed between 1100 and 700 m and Lithic Xerorthents are the principal soil from 700 to 450 m. In this work differences with the soil of NW-facing slopes are described. In the SE-facing slopes the transition to Xerochrepts isn't gradual, cambie horizon is uncommon and the soils between 800 and 500 m have an higher content of clay and higher saturation

    Diagnosability of Fuzzy Discrete Event Systems

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    In order to more effectively cope with the real-world problems of vagueness, {\it fuzzy discrete event systems} (FDESs) were proposed recently, and the supervisory control theory of FDESs was developed. In view of the importance of failure diagnosis, in this paper, we present an approach of the failure diagnosis in the framework of FDESs. More specifically: (1) We formalize the definition of diagnosability for FDESs, in which the observable set and failure set of events are {\it fuzzy}, that is, each event has certain degree to be observable and unobservable, and, also, each event may possess different possibility of failure occurring. (2) Through the construction of observability-based diagnosers of FDESs, we investigate its some basic properties. In particular, we present a necessary and sufficient condition for diagnosability of FDESs. (3) Some examples serving to illuminate the applications of the diagnosability of FDESs are described. To conclude, some related issues are raised for further consideration.Comment: 14 pages; revisions have been mad

    Community Technology Clinic

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    IMPACT. 1: Cooperative design of technology solutions that involves engineers and IT people, and poor and homeless to ensure real needs are met. -- 2. A location for engineers and IT people from the Central Ohio area to help the poor and homeless. -- 3. The CTC is filling an empty niche and meeting an important neglected demand; a similar service does not exist at The Ohio State University, elsewhere in Central Ohio, or anywhere in the U.S.OSU PARTNERS: College of Engineering; College of Social WorkCOMMUNITY PARTNERS: Columbus Coalition for the Homeless; Catholic Social Services; Healthy Worthington Resource; Center & Food PantryPRIMARY CONTACT: Kevin Passino ([email protected]); John Clapp ([email protected])The CTC is a meeting place for poor and homeless people to meet with engineers and information technology experts who learn about their needs and provide, where appropriate, technology-based solutions that meet these needs

    The 99th percentile of reference population for cTnI and cTnT assay: Methodology, pathophysiology and clinical implications

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    According to recent international guidelines, including the 2012 Third Universal Definiton of Myocardial Infarction by the Joint ESC/ACCF/AHA/WHF Task Force, an increase in cardiac troponin (cTn) levels over the 99th percentile upper reference limit (99th URL) should be considered clinically relevant, this cut-off being measured with an imprecision â\u89¤10 CV%. In theory 99th URL values strongly depend not only on demographic and physiological variables (i.e. criteria for considering the reference population "healthy"), but also on the analytical performance of cTn methods and mathematical algorithms used for the calculation. The aim of the present article was therefore to review the methodological and pathophysiological factors affecting the evaluation and calculation of the 99th URL for cTn assay. The critical analysis made showed that no uniform procedure is followed, and nor have experts or regulatory bodies provided uniform guidelines for researchers or cTn assays manufacturers as an aid in "their quest to define normality". In particular, little attention has been paid to the way in which a healthy reference population is to be selected, or the criteria for calculating the 99th URL value for cTn assays, thus highlighting the need for international recommendations not only for demographic and physiological variables criteria for defining a healthy reference population, but also for calculating mathematical algorithms for establishing/calculating clinical decision values. An expert consensus group, comprising laboratory and clinical scientists, biomedical statisticians, industrial and regulatory representatives, should be responsible for drawing up these guidelines
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