Search results for " pec"
showing 10 items of 156 documents
Bionanocomposites Based on Pectins and Halloysite Nanotubes: from the Structure to the Properties
2010
Halloysite nanotubes loaded with peppermint essential oil as filler for functional biopolymer film
2016
Abstract The purpose of this paper is to show how a functional bionanocomposite film with both antioxidant and antimicrobial activities was successfully prepared by the filling of a pectin matrix with modified Halloysite nanotubes (HNT) containing the essential peppermint oil (PO). Firstly, HNT surfaces were functionalized with cucurbit[6]uril (CB[6]) molecules with the aim to enhance the affinity of the nanofiller towards PO, which was estimated by means of HPLC experiments. The HNT/CB[6] hybrid was characterized by several methods (thermogravimetry, FT-IR spectroscopy and scanning electron microscopy) highlighting the influence of the supramolecular interactions on the composition, therma…
Izaak I Komnen (1007-1060). Wódz, buntownik, cesarz – w poszukiwaniu jego doktryny wojennej?
2021
Izaak Komnen (1007–1060) był pierwszym przedstawicielem swojej rodziny, który zasiadł na tronie cesarskim w Konstantynopolu. Ten wychowany przez cesarza Bazylego II (976–1025) człowiek podczas niezwykle krótkiego panowania próbował naprawić błędy swoich poprzedników, którzy pod koniec dynastii macedońskiej osłabili kraj Rzymian pod względem militarnym. Nie byłoby to możliwe bez edukacji wojskowej, rozszerzonej poprzez doświadczenie empiryczne, które Izaak nabył podczas lat służby na różnych poziomach armii cesarstwa. Czy jest zatem możliwe nakreślenie doktryny wojennej, która kierowała tym człowiekiem na różnych etapach jego służby wojskowej, a której końcem była imperialna purpura? Monety …
Gli Angiomi Primitivi Dei Muscoli Striati
1957
Starting from a personal observation of primary angioma of the left pectoralis major, investigations on muscle angiomas are resumed, with the purpose of completing the latest statistical analyses. 75 new cases are reviewed which, added to those from Shallow, Eger and Wagner, bring the number of angiomas referred in the literature up to 111. The etiopathogenesis, pathological anatomy and symptomatology of this affection are considererd and the differential diagnosis, still very difficult, is discussed. A diagnostical misunderstanding may be avoided or limited by thinking of this possible occurrence. The numerous means, currently available for an easier diagnosis are exposed, like direct roe…
TRADE-OFF THEORY VS. PECKING ORDER THEORY – EMPIRICAL EVIDENCE FROM THE BALTIC COUNTRIES
2014
Capital structure is of particular importance in estimating the company value; an accurately estimated and selected equity and debt ratio can maximize the company value and minimizes the cost of capital; therefore, this issue is especially significant in the changing conditions of economic development. The main purpose of this study is to simultaneously evaluate the pecking order and trade-off theories of capital structure and determine which one performs better for a sample of companies from the Baltic states. Analysis is conducted on a sample of 75 listed companies (Baltic Stock Exchange) over the period from 1998 to 2011. The authors test theories using panel data and regression analysis…
Preclinical atherosclerosis and metabolic syndrome increase cardio- and cerebrovascular events rate: a 20-year follow up
2013
BACKGROUND: Intima-media thickness (IMT) is a validated marker of preclinical atherosclerosis and a predictor of cardiovascular events. PATIENTS: We studied a population of 529 asymptomatic patients (age 62 ± 12.8 years), divided into two groups of subjects with and without Metabolic Syndrome (MetS). METHODS: All patients, at baseline, have had a carotid ultrasound evaluation and classified in two subgroups: the first one without atherosclerotic lesions and the second one with preclinical atherosclerosis (increased IMT or asymptomatic carotid plaque). Cardiovascular endpoints were investigated in a 20-years follow-up. RESULTS: There were 242 cardiovascular events: 144 among patients with Me…
New neuroprotective effect of lemon integropectin on neuronal cellular model
2021
Lemon IntegroPectin obtained via hydrodynamic cavitation of organic lemon processing waste in water shows significant neuroprotective activity in vitro, as first reported in this study investigating the effects of both lemon IntegroPectin and commercial citrus pectin on cell viability, cell morphology, reactive oxygen species (ROS) production, and mitochondria perturbation induced by treatment of neuronal SH-SY5Y human cells with H2O2. Mediated by ROS, including H2O2 and its derivatives, oxidative stress alters numerous cellular processes, such as mitochondrial regulation and cell signaling, propagating cellular injury that leads to incurable neurodegenerative diseases. These results, and t…
Superior Antibacterial Activity of Integral Lemon Pectin Extracted via Hydrodynamic Cavitation
2020
Abstract Pectin extracted via hydrodynamic cavitation in water only from waste lemon peel and further isolated via freeze drying displays significant antibacterial activity against Staphylococcus aureus, a Gram positive pathogen which easily contaminates food. The antibacterial effect of the new IntegroPectin is largely superior to that of commercial citrus pectin, opening the way to advanced applications of a new bioproduct now obtainable in large amounts and at low cost from citrus juice industry's waste.
El problema de la aplicación tardía del principio de precaución en las aspersiones aéreas con Glifosato contra cultivos de uso ilícito en Colombia: L…
Nuove prospettive per l’arboricoltura da legno in Sicilia: la coltivazione del noce Pecan
2009
In funzione della promozione dell’arboricoltura da legno in Sicilia, vengono presentati i risultati di osservazioni condotte presso l’Orto botanico di Palermo, concernenti la coltivazione del noce pecan (Carya illinoensis). Essi vengono valutati positivamente anche in relazione alla crescita e alle caratteristiche del legno che potrebbe trovare localmente utile impiego.