Search results for "SARI"
showing 10 items of 929 documents
Quantification of hydrolysis of toxic organophosphates and organophosphonates by diisopropyl fluorophosphatase from Loligo vulgaris by in situ Fourie…
2008
Abstract The enzyme diisopropyl fluorophosphatase (DFPase) from the squid Loligo vulgaris effectively catalyzes the hydrolysis of diisopropyl fluorophosphate (DFP) and a number of organophosphorus nerve agents, including sarin, soman, cyclosarin, and tabun. Up to now, the determination of kinetic data has been achieved by techniques such as pH-stat titration, ion-selective electrodes, and fluorogenic substrate analogs. We report a new assaying method using in situ Fourier transform infrared (FTIR) spectroscopy with attenuated total reflection (ATR) for the real-time determination of reaction rates. The method employs changes in the P–O–R stretching vibration of DFP and nerve agent substrate…
El capitalismo, contra el planeta / 3
2007
El Sáhara y la MPC
2007
La Europa social / 2. La Bolsa o lo social
2005
La Constitución y Porto-Davos
2005
Juan de Sariñena y Luis Beltrán, dos iconos de la espiritualidad en el arte valenciano: apreciaciones a propósito del lienzo conservado en el Museo I…
2014
Selective chromo-fluorogenic detection of DFP (a Sarin and Soman mimic) and DCNP (a Tabun mimic) with a unique probe based on a boron dipyrromethene …
2014
[EN] A novel colorimetric probe (P4) for the selective differential detection of DFP (a Sarin and Soman mimic) and DCNP (a Tabun mimic) was prepared. Probe P4 contains three reactive sites; i.e. (i) a nucleophilic phenol group able to undergo phosphorylation with nerve gases, (ii) a carbonyl group as a reactive site for cyanide; and (iii) a triisopropylsilyl (TIPS) protecting group that is known to react with fluoride. The reaction of P4 with DCNP in acetonitrile resulted in both the phosphorylation of the phenoxy group and the release of cyanide, which was able to react with the carbonyl group of P4 to produce a colour modulation from pink to orange. In contrast, phosphorylation of P4 with…
A Rapid and Sensitive Strip-Based Quick Test for Nerve Agents Tabun, Sarin, and Soman Using BODIPY-Modified Silica Materials
2016
Test strips that in combination with a portable fluorescence reader or digital camera can rapidly and selectively detect chemical warfare agents (CWAs) such as Tabun (GA), Sarin (GB), and Soman (GD) and their simulants in the gas phase have been developed. The strips contain spots of a hybrid indicator material consisting of a fluorescent BODIPY indicator covalently anchored into the channels of mesoporous SBA silica microparticles. The fluorescence quenching response allows the sensitive detection of CWAs in the mu g m(-3) range in a few seconds.
Adaptive Function and Brain Evolution
2012
Comparing brains is not a mere intellectual exercise but also helps to understand how the brain enables adaptive behavioral strategies to cope with an ever-changing world and how this complex organ has evolved during the phylogeny. For instance, comparative neurobiology helps understanding the specific features of our species, an issue that attracted scientists since the time of Santiago Ramon y Cajal. Following this tradition, 20 years ago Hans ten Donkelaar and Gerhard Roth started the European Conferences on Comparative Neurobiology (ECCN). This e-book includes some of the contributions to the last meeting, the sixth ECCN (Valencia, Spain; April 22-24 2010), plus selected works by severa…
Keisarin valta : bysanttilaisen historiankirjoituksen kautta tarkasteltuna 300 - 1100 -luvuilla
2012
Pro gradu -tutkielma käsittelee bysanttilaisen keisarin valtaa bysanttilaisen historiankirjoituksen kautta tarkasteltuna 300 - 1100 -luvuilla. Keisarin valtaa tarkastellaan ideologisella ja aatteellisella tasolla sekä keisarin valtaoikeuksia käytännössä. Bysanttilaisen keisarin valta oli yhdistelmä roomalais-hellenististä hallitsijaperinnettä sekä kristillistä arvomaailmaa. Keisarin vallan aatteellista puolta tarkastellaan esimerkiksi vallan legitimoinnin, valtaannousun ja vallanperimyksen kautta. Bysantin keisari oli hallitsijaideologian mukaan yksinvaltias: hän hallitsi valtakuntaansa sekä bysanttilaista kansainyhteisöä, sekä toimi idän kirkon johtohahmona. Keisarin vallalla oli kuitenkin…