Search results for "clam"
showing 10 items of 454 documents
Cyclam-strapped porphyrins and their iron(III)-copper(II) complexes as models for the resting state of cytochrome c oxidase
1999
International audience; The ESR study of two cyclam-strapped porphyrins in which, on one side, the cyclam is attached with a variable length linker to the porphyrin and, on the other side, a non-coordinating strap protects the iron from any intermolecular interaction, is reported. Variation of the linker length is made possible by the use of either a Michael reaction or a nucleophilic substitution, leading respectively to three or two carbon atom links. It is shown that in the case of the shortest link, the oxidized ironÈcopper complex exhibits a spin interaction. The distance between thetwo metal centers is evaluated to be around 4.5 Å, a value consistent with the one found in the natural …
Lo spazio della città nelle declamazioni in lingua latina
2018
Latin declamations offer an extraordinary perspective to measure some spatial categories, such as, for example, the one concerning the 'scenography' that is the background on which the protagonists of the declamations move. In this sense emerges the fundamental role of the city as a place that, even in the indefiniteness that distinguishes these texts, not only animates the actions of the protagonists but frequently motivates their behavior.
CCDC 709728: Experimental Crystal Structure Determination
2009
Related Article: I.S.Jahro, D.Onggo, Ismunandar, S.I.Rahayu, M.C.Munoz, A.B.Gaspar, M.Seredyuk, P.Gutlich, J.A.Real|2008|Inorg.Chim.Acta|361|4047|doi:10.1016/j.ica.2008.03.122
Synthèse et étude physico-chimique de ligands macrocycliques, macrobicycliques et macrotricycliques dérivés du 5,12-dioxocyclame
2002
The synthesis and the physico-chemical studies of macropolycyclic ligands based on 5,12-dioxocyclam L1 are presented. The first part of this dissertation presents the structural and physico-chemical properties of L1 and its N-substituted derivatives L2 and L3. A potentiometric study reveald a cooperative protonation of the two macrocyclic ligands L1 and L2 whereas the study of the macrotricycle L3 in a methanol-water mixture revealed a sequential cooperative diprotonation of the four tertiary amines. The square planar nickel and copper complexes were synthesized and characterized using infrared, UV-vis and ESR spectgroscopy. The spectroscopic studies showed the presence of intermolecular hy…
Bleomycin, a selective inhibitor of DNA-dependent DNA polymerase from oncogenic RNA viruses.
1972
Abstract Bleomycin, an antibiotic, inhibits the DNA-dependent DNA polymerase from Rauscher murine leukemia virus. Higher concentrations of BLM ∗ are required to inhibit it's RNA-dependent DNA polymerase. These inhibition effects of the non-competitive type are not altered by preincubation of the DNA with BLM. Under comparable conditions neither the DNA-dependent DNA polymerase activity from E. coli and mouse liver nor the DNA-dependent RNA polymerase activity from mouse lymphoma cells are affected by BLM.
Activity and kinetics of DNA dependent DNA and RNA polymerases n xeroderma pigmentosum and in normal human skin.
1971
1. DNA dependent DNA polymerase (E.C.2.7.7.7) was prepared from human normal and from Xeroderma pigmentosum skin. 2. DNA polymerase from normal skin has the same Michaelis constant with native and denatured DNA as templateKm= 120 ± 11 µg DNA/ml, with differing maximum reaction velocities. 3. The enzyme from Xeroderma pigmentosum has the same Michaelis constant for denatured DNA as the enzyme from normal skin, but with native DNA as template, theKmvalue is lower (97.2 ± 9.8). The maximum reaction velocities of the Xeroderma pigmentosum enzyme with native resp. denatured DNA as template are the same. 4. DNA dependent RNA polymerases (E.C.2.7.7.6) from normal and Xeroderma pigmentosum skin wer…
Profili di costituzionalità del reclamo e della mediazione tributaria
2012
Il lavoro tratta dei profili di costituzionalità degli istituti della mediazione tributaria e del reclamo, di recente introduzione. Vengono, in particolare, esaminate le problematiche relative all'“assenza” nel procedimento di un soggetto terzo “imparziale”, della giurisdizione condizionata, del regime delle spese, della tutela cautelare, della indisponibilità della pretesa fiscale.
Patrón de decidualización en mujeres con preeclampsia mediante la aplicación de métodos de transcriptómica y proteómica
2015
Los defectos en la decidualización de las células del estroma endometrial humanas (CEE) están relacionados con la alteración en la invasión trofoblástica y en las alteraciones fibrinolíticas, siendo una posible causa de la preeclampsia. El objetivo de esta tesis doctoral es investigar el proceso de decidualización en pacientes que han sufrido preeclampsia severa y la implicación de la anexina A2 (ANXA2) como regulador clave de la invasión defectuosa del trofoblasto y las alteraciones fibrinolíticas de esta enfermedad. Material y Métodos: CEE procedentes de mujeres que han sufrido preeclampsia grave (PE) (N = 13) y pacientes con antecedentes de embarazos sanos (Non-PE) (N = 13) fueron decidu…
Ps. Quint. 278: testo, traduzione, commento
2019
Testo critico rivisto, traduzione e commento di Ps. Quintiliano declamatio minor 278
Ps. Quintiliano decl. min. 287, testo, traduzione e commento
2019
Testo critico rivisto, traduzione e commento di Ps. Quintiliano declamatio minor 278