197,107 research outputs found
FIGURE 3 in Monoxia obesula Blake, 1939, a species native to the U. S. A. and adventive to Sardinia, Italy (Coleoptera: Chrysomelidae: Galerucinae: Galerucini)
No full textFIGURE 3. Habitat of Monoxia obesula Blake in Sardinia.Published as part of Clark, Shawn M., Rattu, Andrea & Cillo, Davide, 2014, Monoxia obesula Blake, 1939, a species native to the U. S. A. and adventive to Sardinia, Italy (Coleoptera: Chrysomelidae: Galerucinae: Galerucini), pp. 83-89 in Zootaxa 3774 (1) on page 88, DOI: 10.11646/zootaxa.3774.1.6, http://zenodo.org/record/28572
Mean-risk analysis with enhanced behavioral content
No full textWe study a mean-risk model derived from a behavioral theory of Disappointment with multiple reference points. One distinguishing feature of the risk measure is that it is based on mutual deviations of outcomes, not deviations from a specific target. We prove necessary and sufficient conditions for strict first and second order stochastic dominance, and show that the model is, in addition, a Convex Risk Measure. The model allows for richer, and behaviorally more plausible, risk preference patterns than competing models with equal degrees of freedom, including Expected Utility (EU), Mean–Variance (M-V), Mean-Gini (M-G), and models based on non-additive probability weighting, such as Dual Theory (DT). In asset allocation, the model allows a decision-maker to abstain from diversifying in a positive expected value risky asset if its performance does not meet a certain threshold, and gradually invest beyond this threshold, which appears more acceptable than the extreme solutions provided by either EU and M-V (always diversify) or DT and M-G (always plunge). In asset trading, the model provides no-trade intervals, like DT and M-G, in some, but not all, situations. An illustrative application to portfolio selection is presented. The model can provide an improved criterion for mean-risk analysis by injecting a new level of behavioral
realism and flexibility, while maintaining key normative properties
The multiple labour mobilities of North African migrant workers within and through Italy to Europe
No full textThis chapter focuses on transitions and mobilities in migration and on mobilities within labour mobility. The first section of the chapter examines the presence and working conditions of North African immigrants in Italy from a diachronic perspective, then it analyses the primary forms of mobility they have experienced. over time: these include intra- and inter-sectoral mobility, upward and downward labour mobility, geographical mobility between Southern and Northern Italy and vice versa, and labour and legal status transitions (from irregular to regular work and vice versa, from undocumented and under-documented migration to regular migration and vice versa). The second section of the chapter analyses a recent specific form of mobility affecting North African workers with residency in Italy: the posting of workers to the construction sector in other European countries. After
examining posted work and the construction sector in Italy, it focuses on the pathways and working conditions of North African immigrants sent from Italy to Central and Northern European countries as posted workers
Lumped parameter model of vane pumps developed in OpenModelica environment
No full textIn this paper, the authors present a 0D fluid dynamic model of a vane pump used to refill tanks with fuel. The model is entirely developed in OpenModelica environment, where the authors have created specific libraries of elements suitable for the physical modelling of fluid power components and systems.
Among the different approaches, the zero-dimension (0D) fluid-dynamic modelling of positive displacement machines is suitable to study many aspects as: the instantaneous flow rate, pressure and torque transients, the fluid borne noise related to the flow rate and pressure irregularity, the dynamic behaviour of the variable displacement control. Overall, this approach in modelling allows to link the geometrical features of the machine with its dynamic behaviour and for this reason is particularly useful in guiding the design.
The model of the vane pump is described together with the main design features that can be analysed in terms of their influence on the pump behaviour.
Besides the specific results obtained regarding the design of the pump, the paper also demonstrates the use of OpenModelica language and environment, and its efficacy, into the applications of fluid power modelling and simulation
Disease note. Molecular characterization of a tomato isolate of impatiens necrotic spot virus
No full textDown-regulation and co-suppression: two mechanisms of transgenic tolerance mediated by cucumber mosaic virus satellite RNA
No full textRepresenting Subnormothermic Machine Perfusion in Fatty Livers: The Complete Picture?
No full textAfter reading “Impact of Subnormothermic Machine Per-fusion Preservation in Severely Steatotic Rat Livers: ADetailed Assessment in an Isolated Setting” by Okamuraet al, we wish to bring to your attention previously pub-lished results about the use of subnormothermicmachine perfusion (SMP) in marginal organs such assteatotic livers given that due consideration of such datais missing in the discussion section of this report
New Insights into Cancer Targeted Therapy: Nodal and Cripto-1 as Attractive Candidates
No full textThe transforming growth factor beta (TGF-β) signaling is fundamental for correct embryonic development. However, alterations of this pathway have been correlated with oncogenesis, tumor progression and sustaining of cancer stem cells (CSCs). Cripto-1 (CR-1) and Nodal are two embryonic proteins involved in TGF-β signaling. Their expression is almost undetectable in terminally differentiated cells, but they are often re-expressed in tumor cells, especially in CSCs. Moreover, cancer cells that show high levels of CR-1 and/or Nodal display more aggressive phenotypes in vitro, while in vivo their expression correlates with a worse prognosis in several human cancers. The ability to target CSCs still represents an unmet medical need for the complete eradication of certain types of tumors. Given the prognostic role and the selective expression of CR-1 and Nodal on cancer cells, they represent archetypes for targeted therapy. The aim of this review is to clarify the role of CR-1 and Nodal in cancer stem populations and to summarize the current therapeutic strategy to target CSCs using monoclonal antibodies (mAbs) or other molecular tools to interfere with these two proteins
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