Search results for "rosa"

Detection of primary DNA damage in Chlamydomonas reinhardtii by means of modified microgel electrophoresis.

1997

The assessment of genotoxic potential in surface water requires test methods, among which are those that detect initial DNA damage in organisms of aquatic biocenosis. The microgel electrophoresis (MGE) "comet assay" was applied to a ubiquitous unicellular green alga (Chlamydomonas reinhardtii) to detect DNA damage caused by genotoxins. For this, the test protocol described by Singh NP et al. [Exp Cell Res 175: 184-191, 1988] was modified. Major modifications were the use of alkaline lysis buffer with ionic detergents and the reduction of preincubation and electrophoresis times. Short-time exposure of Chlamydomonas to the well-known genotoxicants 4-nitroquinoline-1-oxide (4-NQO), N-nitrosodi…

Darstellung und Funktionalisierung der Selbstbeherrschung in ausgewählten Prosaromanen des 16. Jahrhunderts

Rosa Cobo (2017). La prostitución en el corazón del capitalismo

2021

Diagnosi differenziale tra encondroma e condrosarcoma di basso grado.

2012

Fifth Generation Networking Principles for a Service Driven Future Internet Architecture

2010

Published version of an article published in Wireless Personal Communications, vol. 57:393-411. Also available from the publisher at: http://dx.doi.org/10.1007/s11277-010-0076-7 The vision of all-IP networks where IP forms the simple common layer understandable across the whole network has undeniable advantages. However, such simplicity comes as a major hurdle to flexibility and functionality to the architecture. This is evident from the increasingly numerous and complex engineering solutions and optimizations required to accommodate essential qualities like mobility, security, realtime communication support etc or to mitigate the shortcomings inherent in the 'traditional Internet' architec…

Measurement of pollution levels of N-nitroso compounds of health concern in water using ultra-performance liquid chromatography–tandem mass spectrome…

2017

International audience; This paper reports the development of a highly sensitive analytical method combining solid-phase extraction (SPE) with ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UHPLC–MS/MS), for the monitoring of ultra-trace levels of N-nitrosamines in water samples. Under optimized analytical conditions, chromatographic separation was performed in 3 min, in isocratic mode, using an Acquity UHPLC C18 column and a mobile phase consisting of acetonitrile, water, and formic acid (60:40:0.1, v/v/v) at a flow rate of 0.4 mL min−1. Electrospray ionization tandem interface was employed prior to mass spectrometric detection. Good linearity (R2 ≥ 0.9…

Temporal relationship between genetic and warning signal variation in the aposematic wood tiger moth (Parasemia plantaginis).

2013

Many plants and animals advertise unpalatability through warning signals in the form of colour and shape. Variation in warning signals within local populations is not expected because they are subject to directional selection. However, mounting evidence of warning signal variation within local populations suggests that other selective forces may be acting. Moreover, different selective pressures may act on the individual components of a warning signal. At present, we have a limited understanding about how multiple selection processes operate simultaneously on warning signal components, and even less about their temporal and spatial dynamics. Here, we examined temporal variation of several w…

Detection of primary DNA damage: applicability to biomonitoring of genotoxic occupational exposure and in clinical therapy

1995

The biological effect of putative genotoxic chemicals in the work place environment was monitored in peripheral mononuclear blood cells of exposed workers. DNA strand breaks, alkali-labile sites of DNA and DNA cross-links were measured using the alkaline filter elution method. A dose dependent increase in DNA damage was found in sterilization workers exposed to ethylene oxide and metal workers with exposure towards N-nitrosodiethanolamine. Two subpopulations with different response to the external exposure were found in nonsmoking sterilization workers. Nurses handling antineo-plastic agents without adequate safety provisions showed a statistically significantly higher rate of DNA strand br…

Dalla periferia al centro: I Notarbartolo duchi di Villarosa (secoli XVII-XVIII)

2012

Nella seconda metà del Seicento i Notarbartolo, grazie alle attività economiche e alle alleanze matrimoniali portate avanti da Francesco senior (1630-1704) e dai suoi due figli, Gaetano (1655-1705) e Placido senior (1657-1701), costruiscono il nucleo del proprio patrimonio fondiario e passano dalla condizione di possidenti e benestanti di Caltanissetta, alla condizione di feudatari di provincia insigniti di un titolo baronale e in possesso di tre feudi di cospicua estensione. La politica matrimoniale adottata mira all’accrescimento del patrimonio e del potere, attraverso la creazione di una rete di alleanze; talvolta i matrimoni garantiscono, tramite l’apporto delle doti, la solidità econom…

Phylogeography of a Habitat Specialist with High Dispersal Capability: The Savi’s Warbler Locustella luscinioides

2012

In order to describe the influence of Pleistocene glaciations on the genetic structure and demography of a highly mobile, but specialized, passerine, the Savi's Warbler (Locustella luscinioides), mitochondrial DNA sequences (ND2) and microsatellites were analysed in c.330 individuals of 17 breeding and two wintering populations. Phylogenetic, population genetics and coalescent methods were used to describe the genetic structure, determine the timing of the major splits and model the demography of populations. Savi's Warblers split from its sister species c.8 million years ago and have two major haplotype groups that diverged in the early/middle Pleistocene. One of these clades originated in…