Search results for " (ROS)"
showing 10 items of 428 documents
Cuerpos moldeables y vidas modulables: La invención del estado holísticamente saludable como bienestar (integral)
2020
The article argues ?from the Deleuzian concepts of society of control, moulding and modulation and the Rosean theory on the economization and medicalization of life? that the expansion of the concept of health in terms of integral and subjective well-being is the effect of a socio-historical shift in the way we relate to this signifier, and therefore to our bodies and ourselves. We use this interpretative network to analyze the effects that the biopsychosocial health paradigm has had in the context of aesthetic surgery and fitness practice. As a result, we see that the expansion of the concept of health has extended the domain of medicine into the spheres of personal care and physical appea…
Wing morphometrics as a possible tool for the diagnosis of the Ceratitis fasciventris, C. anonae, C. rosa complex (Diptera, Tephritidae)
2015
Abstract Previous attempts to resolve the Ceratitis FAR complex (Ceratitis fasciventris, Ceratitis anonae, Ceratitis rosa, Diptera, Tephritidae) showed contrasting results and revealed the occurrence of five microsatellite genotypic clusters (A, F1, F2, R1, R2). In this paper we explore the potential of wing morphometrics for the diagnosis of FAR morphospecies and genotypic clusters. We considered a set of 227 specimens previously morphologically identified and genotyped at 16 microsatellite loci. Seventeen wing landmarks and 6 wing band areas were used for morphometric analyses. Permutational multivariate analysis of variance detected significant differences both across morphospecies and g…
Uso in cantina di Starmerella bacillaris (sin. Candida zemplinina) per la produzione di vini rossi con meno alcol e più glicerolo
2018
Per lungo tempo i lieviti non-Saccharomyces sono stati poco considerati come starter per le produzioni enologiche, perché non in grado di tollerare alti livelli di alcol e perché in genere produttori di sostanze poco gradite nel vino, come l’acido acetico. Negli ultimi quindici anni si è registrata però una inversione di tendenza, con molti lavori scientifici che hanno dimostrato la possibilità di selezionare ceppi di lievito non-Saccharomyces in grado di migliorare la qualità dei vini prodotti per fermentazione mista, dove l’inoculo viene realizzato con due diversi ceppi, un non-Saccharomyces ed un Saccharomyces, di solito in modo sequenziale. Una delle specie più promettenti per l’impiego…
Stato, Chiesa e secolarizzazione: in dialogo con Antonio Rosmini
2021
The relation between state and Church is one of the main topics of Western political debate. In this essay I will stress that there is not a clear formula to face this topic. Therefore, it is necessary that Catholic philosophy and theology always reflect on the way this relation has to be thought as time goes by. More specifically, I will argue that the premise of liberal Catholicism, that is that a clear distinction between state and society exists, is today not more easily acceptable at all. This point is very important in order to reflect upon the relation between state and Church, political and religion, and public and private sfere in our age.
Synthesis and biological evaluation of 4-nitro-substituted 1, 3-diaryltriazenes as a novel class of potent antitumor agents
2011
Abstract We describe the synthesis and biological activity of a new class of 1,3-diaryltriazenes, namely 4-nitro-substituted 1,3-diaryltriazenes. Structure–activity relationship analysis reveals that 1,3-diaryltriazenes can be modified from inactive to highly cytotoxic compounds by the introduction of two nitro groups at the para positions of benzene rings and two additional electron-withdrawing groups (bromo, chloro, trifluoromethyl or fluoro substituents) at their ortho position. In order to increase the solubility of the modified compounds, we introduced various acyl groups to their triazene nitrogen. The results of LC-MS/MS analysis showed that N -acyltriazenes can be considered as prod…
Triterpene saponins from Billia rosea.
2017
Five previously undescribed triterpene saponins, billiosides A-E, and a known analogue, were isolated from the seeds of Billia rosea (Planch. & Linden) C. Ulloa & P. Jorg. Their structures were elucidated on the basis of extensive 1D and 2D NMR experiments (1H, 13C, DEPT, COSY, TOCSY, NOESY, ROESY, HSQC, and HMBC) and mass spectrometry as (3β,21β,22α)-3-[(2-O-β-D-glucopyranosyl-O-[α-L-arabinopyranosyl-(1 → 4)]-β-D-glucopyranosyl)oxy]-21-[((2E,6S)-2,6-dimethyl-6-hydroxyocta-2,7-dienoyl)oxy]-22-(acetyloxy)-24-hydroxyolean-12-en-28-oic acid, (3β,21β,22α)-3-[(2-O-β-D-galactopyranosyl-β-D-glucopyranosyl)oxy]-21,22-dihydroxyolean-12-en-28-yl O-α-L-arabinopyranosyl-(1 → 4)-β-D-glucopyranoside, (3β…
Streptomyces coelicolor secretoma protects astrocytes from oxidative stress
2016
Streptomycetes are gram-positive bacteria that produce about 2/3 of pharmaceutically active secondary metabolites, such as antibiotics, and anti-tumor, immunosuppressive, antifungal and antiparasitic agents. In this study, we investigated the possible effects of Streptomyces coelicolor extracts and putative vesicular fraction on primary cultures of rat astrocytes, in both physiological and stressed conditions, induced by treatment with hydrogen peroxide. Briefly, crude extracts and putative vesicular fractions were prepared from two S.coelicolor strains (M145 wild-type strain and bold F166 strain), and used to treat primary astrocytes, which were then also treated with hydrogen peroxide. Da…
Impiego di compost nella coltivazione in vaso di Rosmarinus officinalis L. e Capsicum annum L.
2009
Il substrato di coltivazione è un elemento di fondamentale importanza per le colture in contenitore. La torba, per le sue caratteristiche chimico-fisiche, è attualmente il substrato più utilizzato per la produzione di piante in vaso. Trattandosi, però, di un materiale organico proveniente da fonti non rinnovabili in tempi brevi, e in seguito alle politiche di protezione ambientale adottate dai principali paesi produttori del Nord Europa, la disponibilità di torba di qualità tende a diminuire, mentre il suo prezzo è in progressivo aumento. Si pone, pertanto, la necessità di individuare nuovi substrati di possibile utilizzo per la coltivazione di piante in vaso, in sostituzione della torba. L…
Sulfītu noteikšana vīnā un augļu sulā ar eksprestestu metodi
2015
Sulfītjonu noteikšana vīnā un augļu sulās ar eksprestestu metodi. Muktupāvels A., darba vadītājs LU ĶF docents Ģībietis J. Bakalaura darbs, 35 lappuses, 14 attēli, 9 tabulas, 19 literatūras avoti, 3 pielikumi. Latviešu valodā. Darbā pētīta para-rosanalīna-formaldehīda spektrofotometriskās metodes izmantošana sulfītu noteikšanai vīnā un augļu sulās. Izstrādāta para-rosanalīna-formaldehīda ekspresmetode sulfītu kvantitatīvajai noteikšanai vīnā un augļu sulās, izmantojot teststrēmeles. Analizēts sulfītu daudzums vairākos vīna un augļu sulu paraugos. Iegūtie rezultāti salīdzināti ar rezultātiem, kas iegūti ar standartmetodi.
Remarks on biology, vocalisations and systematics of Urocynchramus pylzowi Przewalski (Aves, Passeriformes)
2006
Several field studies in the Qinghai Nanshan area (Qinghai Province, China) have added new findings to the scant knowledge about Przewalski´s Rosefinch Urocynchramus pylzowi Przewalski, 1876. The hitherto completely unknown vocalisations are described and used to clarify systematic relationships. Although one could argue for a relationship to Uragus sibiricus (Pallas), based on nearly identical auditory impression and sonagram structures of their songs, detailed measurements show significant differences in time and frequency parameters. Moreover a mtDNA analysis shows no close phylogenetic relationship to either of three major emberizid clades. These results support the hypothesis that Uroc…