Search results for "Rite"

Explaining the phenomenon of nitrate tolerance.

2005

During the last century, nitroglycerin has been the most commonly used antiischemic and antianginal agent. Unfortunately, after continuous application, its therapeutic efficacy rapidly vanishes. Neurohormonal activation of vasoconstrictor signals and intravascular volume expansion constitute early counter-regulatory responses (pseudotolerance), whereas long-term treatment induces intrinsic vascular changes, eg, a loss of nitrovasodilator-responsiveness (vascular tolerance). This is caused by increased vascular superoxide production and a supersensitivity to vasoconstrictors secondary to a tonic activation of protein kinase C. NADPH oxidase(s) and uncoupled endothelial nitric oxide synthase …

La multifunzionalità in agricoltura: dai valori delle aree agricole al concetto di multifunzionalità e relazione con la pianificazione territoriale.

2014

La convivenza di più attività in aree agricole è sempre esistita ma la formalizzazione del principio di multifunzionalità applicata all’agricoltura è un passaggio importante che promuove la compresenza di più attività e offerte che si configurano con diversi livelli complessità, divenendo servizi al territorio e alla persona e riuscendo a riattivare territori a rischio. L’introduzione della multifunzionalità in agricoltura ha avuto un grande slancio a partire dalla crisi economica dell’agricoltura tradizionale e, quindi, i temi economici ricorrono spesso nell’analisi effettuata per farli incontrare e interagire con questioni culturali, sociali, ambientali. L’ottica da cui si indaga è quella…

Triterpenoid saponins from the cultivar “Green Elf” of Pittosporum tenuifolium

2021

Four oleanane-type glycosides were isolated from a horticultural cultivar “Green Elf” of the endemic Pittosporum tenuifolium (Pittosporaceae) from New Zealand: three acylated barringtogenol C glycosides from the leaves, with two previously undescribed 3-O-β-d-glucopyranosyl-(1→2)-[α-l-arabinopyranosyl-(1→3)]-β-d-glucuronopyranosyl-21-O-angeloyl-28-O-acetylbarringtogenol C, 3-O-β-d-galactopyranosyl-(1→2)-[α-l-arabinopyranosyl-(1→3)]-β-d-glucuronopyranosyl-21-O-angeloyl-28-O-acetylbarringtogenol C, and the known 3-O-β-d-glucopyranosyl-(1→2)-[α-l-arabinopyranosyl-(1→3)]-β-d-glucuronopyranosyl-21-O-angeloyl-28-O-acetylbarringtogenol C (Eryngioside L). From the roots, the known 3-O-β-d-glucopyra…

APROS-NIMBUS: Dynamic Process Simulator and Interactive Multiobjective Optimization in Plant Automation

2013

Abstract Virtual commissioning of chemical plants often involves a dynamic simulator and an optimization method. This paper demonstrates the integration of APROS, a dynamic process simulator and IND-NIMBUS, an interactive multiobjective optimization software. We implement a multiobjective concentration control problem in APROS involving conflicting objectives and employ a decision maker to interact with IND-NIMBUS and express his preference information to finally obtain his most preferred solution. The results of this study show that APROS and IND-NIMBUS can be integrated and an interactive multiobjective optimization method can help the decision maker in exploring trade-offs among conflict…

Chemical Composition of the Essential Oil of Mentha pulegium Growing Wild in Sicily and its Activity on Microorganisms Affecting Historical Art Crafts

2017

The chemical composition of the essential oil from aerial parts of Mentha pulegium L. (Linné) collected in Sicily was evaluated by GC and GC-MS. The main components were pulegone (50.6%), piperitenone (27.8%) and menthone (6.9%). Comparison of this oil with other studied oils of different populations is discussed. The oil showed good antibacterial and antifungal activities against some microorganisms that infest historical art works.

Energy and environmental analysis of marble productive sites: «by phases» and «by single process» combined approach

2018

Energy Procedia 00 (20 1 8 ) 000 – 000 73rd Conference of the Italian Thermal Machines Engineering Association, ATI 2018, Pisa, Italy, 12 Sep 2018 - 14 Sep 2018; Italy : Elsevier Ltd. (2018).

Joseph Conrad-Korzeniowski, an English Writer with a Polish Soul: Joseph Conrad’s Polish Heritage

2018

The article presents a portrait of Joseph Conrad-Korzeniowski, an English writer with a Polish soul. Conrad—the last Polish Romantic—did not only manage to introduce Polish dreams and longings into English (and Western) literature, but also transformed the Polish experience into a universal one. Writing about exotic, faraway places, he disseminated myths concerning Polish national identity, chivalric tradition and the Polish Eastern Borderland atmosphere and ethos. Conrad, a very demanding writer, never presents ready-made answers, nor does he offer simple solutions to the problems of his protagonists. Moreover, everybody can understand Conrad in their own personal way, for he is perceived …

Applied Mathematics versus Fluid Dynamics

2018

This paper investigates scientific, institutional, and political conflict and collaboration between two different disciplines in the first part of the 20th century: applied mathematics and fluid dynamics. It argues for the catalytic role of Richard von Mises (1883–1953) in this process and analyzes the reasons for von Mises’s considerable fame in the former and limited posthumous reputation in the latter field. I argue that von Mises’s contributions to fluid dynamics and aerodynamics suffered chiefly from two somewhat interconnected deficiencies compared to the work of his principal competitors. There was, on the one hand, von Mises’s methodological preference for applied mathematics as opp…

Pollutants and Air Pollution

2016

Molecular Clustering of Phenylurea Herbicides: Comparison with Sulphonylureas, Pesticides and Persistent Organic Pollutants

2014

Chromatographic retention times of phenylurea herbicides are modelled by structure–property relationships. Properties are hydration free energy and dipole. Bioplastic evolution is an evolutionary perspective conjugating the effect of acquired characters and relations that emerge among evolutionary indeterminacy, morphological determination and natural selection principles. Classification algorithms are proposed based on information entropy and production. Phenylureas are classified by Cl2, O2 and N2 presence; their different behaviour depends on the number of Cl atoms. When applying procedures to moderate-sized sets, excessive results appear compatible with data and suffer a combinatorial e…