Search results for "alternative"

Immunological and pathological status of gilthead sea bream (Sparus aurata L.) under different long-term feeding regimes

2003

The possible influence of the feeding regime (FR) on the immune system and pathological status of gilthead sea bream was studied. Two growth trials were performed starting at different seasons (trial 1 = March; trial 2 = June) under controlled experimental conditions. In both trials, FR-1 groups received a restricted amount of food, whereas FR-2 groups were fed to visual satiety. The pathology study included parasitological and bacteriological examination, and the immunological traits analysed were respiratory burst activity of head kidney leucocytes, serum lysozyme and alternative pathway complement activity (ACH50). The immunological status of gilthead sea bream not only was not impaired …

Criminal Mediation as a Restorative Instrument for Victim: In All Cases and for All Victims?

2012

Insofar as the intention is to provide legal protection, to speak of victims and of certain victims in particular, implies recalling the obscure past that enveloped them with regard to their invisibility in the criminal system as a whole. Society assumed the burden of the criminal response, through the expropriation of the victims’ rights by the State in the interests of that social safeguard. We have for centuries accepted that it was what society required –it was the conquest of civilization, ending “an eye for an eye and a tooth for a tooth” and the lex talionis. That was the best solution, although the outcome of these responses to that situation, owing to frustration, disenchantment an…

Criminal Mediation, an Instrument for Victim Visibility, a Component of Criminal Access to Justice

2018

Insofar as the intention is to provide legal protection, to speak of victims and of certain victims in particular, implies recalling the obscure past that enveloped them with regard to their invisibility in the criminal system as a whole. Society assumed the burden of the criminal response, through the expropriation of the victims’ rights by the State in the interests of that social safeguard. We have for centuries accepted that it was what society required –it was the conquest of civilization, ending “an eye for an eye and a tooth for a tooth” and the lex talionis. That was the best solution, although the outcome of these responses to that situation, owing to frustration, disenchantment an…

Priming of plant resistance by natural compounds. Hexanoic acid as a model

2014

Some alternative control strategies of currently emerging plant diseases are based on the use of resistance inducers. This review highlights the recent advances made in the characterization of natural compounds that induce resistance by a priming mechanism. These include vitamins, chitosans, oligogalacturonides, volatile organic compounds, azelaic and pipecolic acid, among others. Overall, other than providing novel disease control strategies that meet environmental regulations, natural priming agents are valuable tools to help unravel the complex mechanisms underlying the induced resistance (IR) phenomenon. The data presented in this review reflect the novel contributions made from studyin…

La notion de croissance chez Dewey et Rorty

2010

National audience; La notion de croissance revêt deux types d'aspects : quantitatif et qualitatif. Le premier évoque l'accroissement, l'augmentation ou le changement physiologique. Le deuxième concerne l'enrichissement, l'accomplissement de la personne ; il est lié à la tâche éducative. Les philosophes américains John Dewey et Richard Rorty s'accordent à souligner la "nécessaire indétermination" du terme "croissance", afin de laisser ouvertes les perspectives d'évolution. Cependant, leurs points de vue divergent quant à la valorisation des périodes de l'enfance. L'un souligne la créativité et la singularité de l'adolescence, tandis que l'autre se refuse à établir une telle distinction. L'an…

IL CONSUMERISMO NELLA SOCIETA' POSTMODERNA E LE RETI AGROALIMENTARI ALTERNATIVE IN SICILIA.

2012

Cytotoxic Acacic Acid Glycosides from the Roots of Albizia coriaria

2009

Two new oleanane-type saponins, coriariosides A (1) and B (2), along with a known saponin, gummiferaoside C (3), were isolated from the roots of Albizia coriaria. Their structures were established by extensive analysis of 1D and 2D NMR experiments (COSY, ROESY, TOCSY, HSQC, and HMBC) and mass spectrometry. Compounds 1 and 3 when tested for cytotoxicity against two colorectal human cancer cells showed activity against the HCT 116 (IC50 4.2 microM for 1 and 2.7 microM for 3) and HT-29 (IC50 6.7 microM for 1 and 7.9 microM for 3) cell lines.

Arboreasides A−E, Triterpene Saponins from the Bark of Cussonia arborea

2009

Five new triterpene saponins, arboreasides A-E (1-5), and two known saponins, ciwujianoside C(3) and 23-hydroxyursolic acid 28-O-alpha-L-rhamnopyranosyl-(1--4)-beta-D-glucopyranosyl-(1--6)-beta-D-glucopyranosyl ester, were isolated from the bark of Cussonia arborea. The structures were established using extensive 1D and 2D NMR spectroscopic analyses and mass spectrometry.

New Acylated Triterpene Saponins from Silene fortunei that Modulate Lymphocyte Proliferation

2002

Three new acylated triterpene saponins 1-3, with a quillaic acid as aglycon, were isolated from the roots of Silene fortunei together with a known phytoecdysteroid (20-hydroxyecdysone). The compounds were characterized mainly by a combination of 2D NMR techniques, mass spectrometry, and chemical methods. Saponins 1-3, jenisseensosides C and D (4, 5), and 6 (deacylated form of 2/3 and 4/5) were found to stimulate the proliferation of the Jurkat tumor cell lines at low concentration. At high concentration, 2/3 and 4/5 inhibited the proliferation of the cells and suggested the induction of apoptosis.

(-)-Isosteviol as a Versatile Ex-Chiral-Pool Building Block for Organic Chemistry

2013

(–)-Isosteviol is readily available in large quantities by the acidic treatment of a common alternative sweetener. The two functional groups of (–)-isosteviol are presented on the same side of the ent-beyerane scaffold with a mutual C–C distance of about 7 A. Their unique concave arrangement experiences a strong asymmetric environment due to an adjacent methyl group. Consequently, this building block has found several applications in supramolecular chemistry and organocatalysis. These areas and the chemical modification of this scaffold as well as its biological activity are surveyed.