The price stabilization effects of the EU entry price scheme for fruits and vegetables

The paper assesses the stabilization effects of the EU import regime for fresh fruit and vegetables based on the entry price system. The analysis is carried out on the EU prices of tomatoes and lemons and those of imports from some of the main competing countries on the EU domestic markets: Morocco, Argentina and Turkey. It is based on the estimation of a threshold vector autoregressive econometric model that is shown capable of taking the workings of the import regime into account. The model shows that prices behave differently when import prices are above/below the trigger entry price. This paper allowed to highlight the cases for which the isolation effect of EPS seems reached and the resulting stabilization effects

The price stabilization effects of the EU entry price scheme for fruits and vegetables

The paper assesses the stabilization effects of the EU import regime for fresh fruit and vegetables based on the entry price system. The analysis is carried out on the EU prices of tomatoes and lemons and those of imports from some of the main competing countries on the EU domestic markets: Morocco, Argentina and Turkey. It is based on the estimation of a threshold vector autoregressive econometric model that is shown capable of taking the workings of the import regime into account. The model shows that prices behave differently when import prices are above/below the trigger entry price. This paper allowed to highlight the cases for which the isolation effect of EPS seems reached and the resulting stabilization effects.Fruit and vegetables; Entry price system; stabilisation effects; TVAR

The Price Stabilisation Effects of the EU import regime of fruit and vegetables: the case of tomatoes

The paper assesses the stabilization effects of the EU import regime for fresh fruit and vegetables based on the entry price system. The analysis is carried out on the EU prices of tomatoes and those of imports from Morocco, the main competing country on the EU domestic markets. It is based on the estimation of a threshold vector autoregressive econometric model that is shown capable of taking the workings of the import regime into account. The model shows that when prices of tomato imports are below the trigger entry prices the EU tomato market becomes isolated. However, the contribution of the import regime on price stabilization is rather limited. Since tomato imports from Morocco are granted zero tariff if their price is higher than the trigger entry price within a yearly quota that is completely filled, the largest contribution to market stabilization may well come from the size of the quota.fruit and vegetables, European Union , entry prices, trade preferences, price stabilization , tomatoes

Identification from flight data of the Italian Unmanned Space vehicle

Identification methodologies for processing flight data are frequently used to validate and improve a pre-flight aerodynamic data-base and, specifically, to reduce the associated uncertainties. This paper describes the process applied for the identification of the aerodynamic model of the Italian Unmanned Space Vehicle. The identification problem is solved through a multi-step approach, where the aerodynamic coefficients are identified first and, in a following phase, a set of model parameters are updated. The methodology was applied to actual flight data, gathered during the second flight test performed by the Italian Aerospace Research Centre

The price stabilization effects of the EU entry price scheme for fruit and vegetables

The article assesses the stabilization effects of the EU import regime for fresh fruit and vegetables based on the entry price system (EPS). The analysis is carried out on the EU prices of tomatoes and lemons and those of imports from some of the main competing countries on the EU domestic markets: Morocco, Argentina, and Turkey. It is based on the estimation of a threshold vector autoregressive econometric model that is shown capable of taking the workings of the import regime into account. The model shows that prices behave differently when import prices are above/below the trigger entry price. This article allowed to highlight the cases for which the isolation effect of EPS seems reached and the resulting stabilization effects. © 2011 International Association of Agricultural Economists

The brain tissue reaction to blunt trauma: a field of possible cooperation between neuroanatomists and forensic pathologists

The goal of this presentation is to describe, through the histological examination, the evolution over time of the biological processes, at the cellular and molecular level, in the neurological tissue after a blunt trauma. The origin of the secondary ischemia, that often occurs after a brain trauma, leading to death the patient, is almost studied on animal models and is not well known yet. It is presumed that hemorrhages and contusions result in brain ischemia, and that also brain edema arises intra-cranial pressure producing ischemia. Forensic pathology deals everyday with cases of traumatic deaths, and is therefore able to study the inflammatory reaction to trauma in a human casuistry giving information to other disciplines like neuroanatomy. The time-dependent appearance of different leucocyte subtypes can contribute to a forensic wound age estimation but, in contrast to peripheral tissue, the cellular reaction in the CNS is characterized by a minimal neutrophil exsudation and a delayed increase in mononuclear cell numbers. 62 deaths due to head injury with a survival time from few minutes till 30 days were studied. Samples of brain tissue were stained with immunohistochemistry using selectin P and E, GFAP, HIF1-α, CD 117 (c-kit), LCA. The schematic information about chronology of head trauma are given as follows: survival of a few minutes, of 1 hour, of 2-4 hours, of 4-12 horus, of 12-24 hours, 24-48 hours, 2-6 days, 6-14 days, 15-30 days. The number of platelets microthrombi increases with TBI age up to 3 days, afterward leukocytes start to take their place. Platelets aggregates may impair cerebral circulation causing ischemia. Cerebral ischemia plays an important role in SBD. There is also an involvement of CD 117+ cells and HIF-1 α in the modulation and progression of the brain injury. After brain injury a cascade of events occurs leading sometime to a brain secondary ischemic injury. Thanks to the availability of injured human brain tissues, forensic histopathologists might work together with neuroanatomists in order to help in the identification of glial cells and leukocytes communication with endothelial cells, and on the post-traumatic ischemic process that causes the death in prolonged survival time after brain injury

Dynamic Łukasiewicz logic and its application to immune system

AbstractIt is introduced an immune dynamicn-valued Łukasiewicz logicID{\L }_nIDŁnon the base ofn-valued Łukasiewicz logic{\L }_nŁnand corresponding to it immune dynamic$$MV_n$$MVn-algebra ($$IDL_n$$IDLn-algebra),$$1< n < \omega$$1<n<ω, which are algebraic counterparts of the logic, that in turn represent two-sorted algebras$$(\mathcal {M}, \mathcal {R}, \Diamond )$$(M,R,◊)that combine the varieties of$$MV_n$$MVn-algebras$$\mathcal {M} = (M, \oplus , \odot , \sim , 0,1)$$M=(M,⊕,⊙,∼,0,1)and regular algebras$$\mathcal {R} = (R,\cup , ;, ^*)$$R=(R,∪,;,∗)into a single finitely axiomatized variety resemblingR-module with "scalar" multiplication$$\Diamond$$◊. Kripke semantics is developed for immune dynamic Łukasiewicz logicID{\L }_nIDŁnwith application in immune system

COX-1 Inhibitors: Beyond Structure Toward Therapy

Biosynthesis of prostaglandins from arachidonic acid (AA) is catalyzed by cyclooxygenase (COX), which exists as COX-1 and COX-2. AA is in turn released from the cell membrane upon neopathological stimuli. COX inhibitors interfere in this catalytic and disease onset process. The recent prominent discovery involvements of COX-1 are mainly in cancer and inflammation. Five classes of COX-1 inhibitors are known up to now and this classification is based on chemical features of both synthetic compounds and substances from natural sources. Physicochemical interactions identification between such molecules and COX-1 active site was achieved through X-ray, mutagenesis experiments, specific assays and docking investigations, as well as through a pharmacometric predictive model building. All these insights allowed the design of new highly selective COX-1 inhibitors to be tested into those disease models in which COX-1 is involved. Particularly, COX-1 is expressed at high levels in the early to advanced stages of human epithelial ovarian cancer, and it also seems to play a pivotal role in cancer progression. The refinement of COX-1 selective inhibitor structure has progressed to the stage that some of the inhibitors described in this review could be considered as promising active principle ingredients of drugs and hence part of specific therapeutic protocols. This review aims to outline achievements, in the last 5 years, dealing with the identification of highly selective synthetic and from plant extracts COX-1 inhibitors and their theranostic use in neuroinflammation and ovarian cancer. Their gastrotoxic effect is also discussed