Search results for "ALK"

Cyjanobakterie - fotoautotroficzne mikrorganizmy zdolne do biotransformacji chalkonów

2014

L’aggravante dello stalking per l’omicidio e le lesioni personali al vaglio delle Sezioni Unite, tra reato complesso e disattenzioni del legislatore

2022

Come si ricorderà, il D.L. n. 11 del 2009 (conv. in L. n. 38 del 2009), introducendo nel codice penale il delitto di atti persecutori (art. 612-bis), ha al contempo modificato l’art. 576, comma 1, c.p., inserendo tra le aggravanti dell’omicidio doloso l’essere stato commesso dall’autore di atti persecutori nei confronti della stessa vittima. Occorre pure tener presente che tale modifica dell’art. 576 c.p. produce effetti anche sull’art. 585 c.p., che stabilisce che nei “casi previsti dagli articoli 582, 583, 583-bis, 583- quinquies e 584, la pena è aumentata da un terzo alla metà, se concorre alcuna delle circostanze aggravanti previste dall’articolo 576”. Con la sentenza in epigrafe le Sez…

Salinity affects nitrate removal and microbial composition of denitrifying woodchip bioreactors treating recirculating aquaculture system effluents

2019

Abstract This study investigated the effect of salinity on microbial composition and denitrification capacity of woodchip bioreactors treating recirculating aquaculture system (RAS) effluents. Twelve laboratory-scale woodchip bioreactors were run in triplicates at 0, 15, 25, and 35 ppt salinities, and water chemistry was monitored every third day during the first 39 days of operation. Microbial communities of the woodchips bioreactors were analyzed at the start, after one week, and at the end of the trial. Woodchip bioreactors removed nitrate at all salinities tested. The highest NO3-N removal rate of 22.0 ± 6.9 g NO3-N/m3/d was obtained at 0 ppt, while 15.3 ± 4.9, 12.5 ± 5.4 and 11.8 ± 4.0…

24-(S)-hydroxycholesterol is a potent modulator of cholesterol metabolism in rat retinal Müller glia

2019

International audience

First real–time detection of solar pp neutrinos by Borexino

2014

International audience; Solar neutrinos have been pivotal to the discovery of neutrino flavour oscillations and are a unique tool to probe the reactions that keep the Sun shine. Although most of solar neutrino components have been directly measured, the neutrinos emitted by the keystone pp reaction, in which two protons fuse to make a deuteron, have so far eluded direct detection. The Borexino experiment, an ultra-pure liquid scintillator detector running at the Laboratori Nazionali del Gran Sasso in Italy, has now filled the gap, providing the first direct real time measurement of pp neutrinos and of the solar neutrino luminosity.

Dialogia etsimässä : pienryhmäkeskusteluja luokassa

2012

Structural and Spectroscopic Studies of the PCP-Bridged Heavy Chalcogen-Centered Monoanions [HC(PPh2E)(PPh2)]− (E = Se, Te) and [HC(PR2E)2]− (E = Se,…

2009

Selenium- and tellurium-containing bis(diphenylphosphinoyl)methane monoanions were prepared by oxidation of the anion [HC(PPh2)2]− with elemental chalcogens. The selenium-containing isopropyl derivative was synthesized by generating [H2C(PiPr2)2] via a reaction between [H2C(PCl2)2] and 4 equiv of iPrMgCl prior to insitu oxidation with selenium followed by deprotonation with LiNiPr2. The solid-state structures of the lithium salts of the monochalcogeno anions TMEDA·Li[HC(PPh2E)(PPh2)] (E = Se (Li7a), E = Te (Li7b)) and the dichalcogeno anions TMEDA·Li[HC(PR2Se)2] (R = Ph (Li8a), iPr (Li8c)) revealed five- and six-membered LiEPCP and LiSePCPSe rings, respectively. The homoleptic group 12 comp…

Experimental and Theoretical Investigations of the Contact Ion Pairs Formed by Reactions of the Anions [(EPR2)2N]− (R = iPr, tBu; E = S, Se) with the…

2009

Reactions of the sodium salts [(EPR2)2N]Na(TMEDA) (R = iPr, tBu; E = S, Se) with the iodide salts [(TePR2)2N]I (R = iPr, tBu) in toluene produce the mixed-chalcogen systems [(EPR2)2N][(TePR2)2N] (6b, E = Se, R = tBu; 6c, E = S, R = tBu; 7b, E = Se, R = iPr; 7c, E = S, R = iPr). Compounds 6b, 6c, 7b, and 7c have been characterized in solution by variable-temperature multinuclear (31P, 77Se, and 125Te) NMR spectroscopy and in the solid state by single-crystal X-ray crystallography. The structures are comprised of contact ion pairs linked by bonds between Te and S or Se atoms. For the tert-butyl derivatives 6b and 6c, the anionic half of the molecule is coordinated in a bidentate (E,E′) fashio…

Bond Stretching and Redox Behavior in Coinage Metal Complexes of the Dichalcogenide Dianions [(SPh2P)2CEEC(PPh2S)2]2− (E=S, Se): Diradical Character …

2011

The metathetical reactions of a) [Li(tmeda)]2[(S)C(PPh2S)2] (Li2⋅3 c) with CuCl2 and b) [Li(tmeda)]2[(SPh2P)2CSSC(PPh2S)2] (Li2⋅4 c) with two equivalents of CuCl both afford the binuclear CuI complex {Cu2[(SPh2P)2CSSC(PPh2S)2]} (5 c). The elongated (C)S[BOND]S(C) bond (ca. 2.54 and 2.72 Å) of the dianionic ligand observed in the solid-state structure of 5 c indicate the presence of diradical character as supported by theoretical analyses. The treatment of [Li(tmeda)]2[(SPh2P)2CSeSeC(PPh2S)2] (Li2⋅4 b) and Li2⋅4 c with AgOSO2CF3 produce the analogous AgI derivatives, {Ag2[(SPh2P)2CEEC(PPh2S)2]} (6 b, E=Se; 6 c, E=S), respectively. The diselenide complex 6 b exhibits notably weaker Ag[BOND]Se…

Recent Advances on the Halo- and Cyano-Trifluoromethylation of Alkenes and Alkynes

2021

Incorporation of fluorine into organic molecules is a well-established strategy in the design of advanced materials, agrochemicals, and pharmaceuticals. Among numerous modern synthetic approaches, functionalization of unsaturated bonds with simultaneous addition of trifluoromethyl group along with other substituents is currently one of the most attractive methods undergoing wide-ranging development. In this review article, we discuss the most significant contributions made in this area during the last decade (2012−2021). The reactions reviewed in this work include chloro-, bromo-, iodo-, fluoro- and cyano-trifluoromethylation of alkenes and alkynes.