Search results for "RBAC"
showing 10 items of 740 documents
Mechanical and electrophysiological effects of cromakalim on the human urinary bladder.
1994
The effects of cromakalim on spontaneous and induced mechanical activity of human detrusor muscle were investigated in vitro. Cromakalim produces a concentration-related decrease of spontaneous as well as carbachol- and K(+)-evoked contractions. This is the first study to utilize the patch clamp technique to elucidate the mechanism of action of cromakalim on human detrusor cells. Cromakalim hyperpolarizes the detrusor cells by increasing the net outward current which is most likely carried by potassium ions. In the human urinary bladder, this effect is mediated by a glibenclamide-sensitive potassium channel, as glibenclamide is able to diminish the relaxant effect of cromakalim and to preve…
Effect of Supplementation with Wheat Bran Aqueous Extracts Obtained by Ultrasound-Assisted Technologies on the Sensory Properties and the Antioxidant…
2015
Phenolic compounds have antioxidant properties and activate endogenous detoxification defense systems able to scavenge the reactive species of oxygen. The external layers of wheat caryopsis, largely constituting by-products of the milling industry such as bran and various middlings, contain relevant amounts of phenolic compounds. The aim of the research has been to evaluate the effect of supplementation with wheat bran aqueous extracts, obtained by ultrasound-assisted technologies, on the sensory properties and antioxidant activity of dry pasta. The HPLC-DAD characterization of the extract evidenced the presence of ferulic and p-coumaric acids. The supplemented pasta showed significantly h…
Le varietà di grano duro per le semine 2021. Sicilia
2021
Anche nel 2020-21, pur nelle difficili circostanze determinate per il secondo anno consecutivo dalla pandemia da Covid-19, sono state condotte in Sicilia le prove della Rete nazionale di confronto varietale di frumento duro. I campi sperimentali sono stati allestiti in 5 ambienti siciliani. La sperimentazione ha riguardato 30 varieta’, di cui ben 9 al primo anno di valutazione. I risultati produttivi riscontrati nelle diverse localita’ appaiono molto differenti e fortemente influenzati dall’andamento meteorologico verificatosi nelle diverse zone dell’Isola. At 2020-21, despite the difficult circumstances determined for the second consecutive year by the Covid-19 pandemic, the tests of the n…
Le varietà di grano duro per le semine 2020: Sicilia
2020
Nonostante le difficoltà operative dovute alla pandemia da Covid-19, anche nel corso del 2019-20 sono state condotte in Sicilia le prove di confronto varietale di frumento duro, allestite in 5 località della Sicilia: Libertinia (Catania), Catania, S. Stefano Quisquina (Agrigento), Caltagirone (Catania) e Ciminna (Palermo). La sperimentazione ha riguardato 30 varietà, di cui 5 al primo anno di valutazione, 9 cultivar al secondo anno di prova e 16 genotipi testati da oltre due anni. La resa media dell’areale siciliano è stata pari a 6,11 t/ha e i risultati produttivi registrati nei diversi ambienti di prova appaiono sensibilmente influenzati dall’andamento termo-pluviometrico. Despite the dif…
Grano duro biologico: i consigli varietali.
2019
Nell’annata agraria 2018-19, per il 17° anno consecutivo, sono state effettuate prove collegiali di confronto tra varietà di frumento duro in coltura biologica, in collaborazione con diverse Istituzioni. Le prove sono state realizzate in 7 località, dislocate in 6 regioni del Centro-Sud (Sicilia, Sardegna, Puglia, Toscana e Marche), utilizzando uno schema sperimentale a blocchi randomizzati con 3 o 4 ripetizioni. In tutti i campi sono state messe a confronto le stesse 19 varietà, fornite non conciate dalle ditte sementiere.A livello produttivo le varietà Emilio Lepido, Iride e Antalis hanno fornito i migliori risultati, mentre le varietà Aureo e Furio Camillo sono risultate, rispettivamente…
Le varietà di grano duro bio per le prossime semine.
2019
Nelle prove del 17° anno di sperimentazione varietale nazionale sul frumento duro in coltivazione biologica, tra le 19 varietà valutate in 7 campi di prova sono da evidenziare i risultati delle varietà Antalis ed Egeo che alla buona e stabile produzione hanno associato anche un tenore proteico e un peso ettolitrico superiori alle medie.
Micropropagation and in vitro culture of Pyrethrum [Chrysanthemum cinerariifolium (Trev.) Vis.]
2014
Pyrethrum (Chrysanthemum cinerariifolium (Trev.) Vis. = Tanacetum cineariaefolium (Trev.) Schultz-Bip.) is a perennial herbaceous plant belonging to the family Asteraceae, native to Albania and the area of former Yugoslavia. It is the only species in the genus Tanacetum having an agronomic importance, although the genus consists of several species producing similar types of bioactive metabolites. The species is grown in order to obtain the insecticidal compounds collectively termed pyrethrins, which are found primarily in the flower heads. In this work we discuss the results found from a worldwide literature review about the micropropagation techniques followed on Pyrethrum, the in vitro cu…
Water need of Energy Crops – one of the environmental problems of Poland
2010
The government policy updates of Poland are presented, showing legal and financial instruments for governing bioenergy developments. The strategy for renewable energy must be co-ordinated with the strategy of water management in the country. The water needs are given for cool climate and extensive agriculture of Central and Eastern Europe which are few times lower than for hotter condition of Southern Europe. Despite this the rain would be not enough for water supply of most of the energy crops.
Oilseed Brassica species for fuel production in Mediterranean environments: First field results and technical evaluations
2008
Energy is a major constraint of developed and under-development countries, and the sustainable production of biofuels for use in industrial and domestic sectors has been implemented successfully in many parts of the world. For a number of reasons, some Brassica species, such as B. napus, B. juncea or B. carinata, seem especially interesting as biofuel crops for Mediterranean environments, and many studies and researches have been carried out in order to ensure a successful introduction of them inside the current farming systems. In this work we report the first results of the field trials performed in 2006/07 in the experimental farm “Sparacia” (Cammarata – AG – Sicily), representative of t…
The impact of soil erosion on soil fertility and vine vigor. A multidisciplinary approach based on field, laboratory and remote sensing approaches
2018
Soil erosion processes in vineyards, beyond surface runoff and sediment transport, have a strong effect on soil organic carbon (SOC) loss and redistribution along the slope. Variation in SOC across the landscape can determine differences in soil fertility and vine vigor. The goal of this research was to analyze the interactions among vines vigor, sediment delivery and SOC in a sloping vineyard located in Sicily. Six pedons were studied along the slope by digging 6 pits up to 60 cm depth. Soil was sampled every 10 cm and SOC, water extractable organic carbon (WEOC) and specific ultraviolet absorbance (SUVA) were analyzed. Erosion rates, detachment and deposition areas were measured by the po…