1,721,366 research outputs found

    G. Marchesini: Sur les idées générales. Rev. philos. Bd. 35, S. 488-498, 1893, No. 5

    No full text
    G. MARCHESINI: SUR LES IDÉES GÉNÉRALES. REV. PHILOS. BD. 35, S. 488-498, 1893, NO. 5 Zeitschrift für Psychologie und Physiologie der Sinnesorgane (-) Zeitschrift für Psychologie und Physiologie der Sinnesorgane (6) (a0001) G. Marchesini: Sur les idées générales. Rev. philos. Bd. 35, S. 488-498, 1893, No. 5 (6) (p0253

    Increased risk of cardiovascular disease in non-alcoholic fatty liver disease: causal effect or epiphenomenon?

    No full text
    Abstract Non-alcoholic fatty liver disease (NAFLD), comprising a spectrum of conditions ranging from pure steatosis to steatohepatitis and cirrhosis, has reached epidemic proportions and represents the most common cause of chronic liver disease in the community. The prevalence of NAFLD has been estimated to be between 20% and 30% in the general population, but this value is much higher (∼70–80%) in type 2 diabetic patients, who are also at higher risk of developing advanced fibrosis and cirrhosis. Increasing recognition of the importance of NAFLD and its strong relationship with the metabolic syndrome has stimulated an interest in the possible role of NAFLD in the development of cardiovascular disease (CVD). Several epidemiological studies indicate that NAFLD, especially in its more severe forms, is linked to an increased risk of CVD, independently of underlying cardiometabolic risk factors. This suggests that NAFLD is not merely a marker of CVD, but may also be actively involved in its pathogenesis. The possible molecular mediators linking NAFLD and CVD include the release of pro-atherogenic factors from the liver (C-reactive protein, fibrinogen, plasminogen activator inhibitor-1 and other inflammatory cytokines) as well as the contribution of NAFLD per se to whole-body insulin resistance and atherogenic dyslipidemia, in turn favouring CVD progression. The clinical impact of NAFLD on CVD risk deserves particular attention in view of the implications for screening and surveillance strategies in the growing number of patients with NAFLD

    Exact solution of BFKL equation in jet-physics

    No full text
    It has been recently found that the heavy quark-antiquark Q 1Q pair multiplicity, in certain phase space region (Q 1Q at short distance, soft and with small velocity), satis ̄es an evolution equation formally similar to the BFKL equation for the high energy scattering amplitude. We ̄nd the exact solution of the Q 1 Q-equation and discuss the di®erences with the BFKL scattering amplitude Keywords: QCD, Jets, Hadronic Colliders. °

    Prin 2004, Responabile di unita' locale di progetto approvato

    No full text
    Prin 2004 approvato. Teoria e fenomenologia delle interazioni forti ai colliders adronic

    On the structure of finite memory and separable 2D systems

    No full text
    Several characterizations of finite memory and separability properties for a two-dimensional system are presented, in terms of both the characteristic polynomial and the matrix pair that describes the state evolution. Necessary and sufficient conditions for a finite memory or separable two-dimensional system to have an inverse with the same properties are given; these involve only the structure of the transfer matrix

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Get PDF
    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
    corecore