Search results for "CONI"

Isolated Fe(III)-O Sites Catalyze the Hydrogenation of Acetylene in Ethylene Flows under Front-End Industrial Conditions

2018

[EN] The search for simple, earth-abundant, cheap, and nontoxic metal catalysts able to perform industrial hydrogenations is a topic of interest, transversal to many catalytic processes. Here, we show that isolated FeIII¿O sites on solids are able to dissociate and chemoselectively transfer H2 to acetylene in an industrial process. For that, a novel, robust, and highly crystalline metal¿organic framework (MOF), embedding FeIII¿OH2 single sites within its pores, was prepared in multigram scale and used as an efficient catalyst for the hydrogenation of 1% acetylene in ethylene streams under front-end conditions. Cutting-edge X-ray crystallography allowed the resolution of the crystal structur…

Parasitoids of Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae) recovered in western North America and first record of its egg parasitoid …

2012

The parasitoid complex of the western conifer seed bug, Leptoglossus occidentalis, was studied in British Columbia and California on Pinus monticola and P. contorta var. latifolia. Three egg-parasitoid species were identified: Gryon pennsylvanicum (Hymenoptera: Platygastridae), Ooencyrtus johnsoni (Hymenoptera: Encyrtidae) and Anastatus pearsalli (Hymenoptera: Eupelmidae). Leptoglossus occidentalis represents a new host record for O. johnsoni, and California is a new distribution record for G. pennsylvanicum. Gryon pennsylvanicum was the dominant species during the entire oviposition period of the bug, reaching peak parasitization levels in July (25%). Ooencyrtus johnsoni and A. pearsalli e…

Itália: esquerda convertida à defesa do capital sofre derrota histórica para ultra-direita

2001

Itália. Abril de 1996. Aquele que fora o maior partido comunista do Ocidente vence as eleições italianas. O Partido da Refundação Comunista, nascido quando o PCI mudara de nome – Partido dos Democratas de Esquerda, PDS –, assumindo-se social-democrata, apoiara, de fora, a coligação. A vitória era completa, ao fim de seis meses de governo de Berlusconi, desorganizado por greves contra as privatizações, cortes sociais etc. Romano Prodi, em menos de dois anos, saneou as finanças, dobrou a inflação, relançou as exportações. Para realizar o milagre, comprimiu salários, cortou investimentos, privatizou bens públicos, causou graves seqüelas sociais. O governo de centro-esquerda dependia do apoio d…

Extraction and immediate placement of root analogue zirconia implants: an overview

2011

Dental implants constitute a well-established approach for replacement of lost teeth with titanium being the most favored material for implantation. However, titanium has its limitations in esthetically demanding cases and neither the form nor material of such implants has changed much over the past 40 years. Immediate implantation has been introduced to overcome the disadvantages of conventional implantation which in turn has many disadvantages owing to the incongruence of the implant to the extraction socket. Today, there is scientific evidence that zirconia dental implants osseointegrate well and offer many advantages over titanium implants. The successful use of zirconia ceramics in ort…

Counter anion binding in the phenoxyimine, salan and metallocene olefin polymerization catalysts activated with perfluorophenylborate

2012

Abstract Ion pair separation is a process that may influence the activity of homogeneous catalysts of olefin polymerization. We have studied the energy of separation for selected titanium and zirconium metallocene and post-metallocene catalytic ion pairs by means of DFT, dispersion-corrected DFT and Paired Interacting Orbitals method (PIO). Unusually weak cation–anion interactions in the bis(phenoxyimine) systems were attributed to strong electron-donating properties of the phenoxyimine ligands. Energy decomposition analysis (EDA) revealed that almost 70% of the counter ion binding energy results from electrostatic interactions. The PIO method made it possible to analyze the nature of the c…

Falcó jugger, falcó laggar, Halcón Yággar (VER0000228)

Laggar Falcon (Anglès), Faucon laggar (Francès), Laggarfalke (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 4-2 Nueva Granada

Falcó dels ratpenats, Halcón murcielaguero (VER0000172)

Altres noms vulgars: Bat Falcon (Anglès), Faucon des chauves-souris (Francès), Fledermausfalke (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 4-1 Nueva Granada Macho Adulto

Falcó mostatxut, Alcotán (VER0000168)

Altres noms vulgars: Eurasian Hobby (Anglès), Faucon hobereau (Francès), Baumfalke (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 4-2 Llíria Juvenil

Falcó mostatxut, Alcotán (VER0000167)

Altres noms vulgars: Eurasian Hobby (Anglès), Faucon hobereau (Francès), Baumfalke (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 3-2 Machistre (Valencia) Macho Adulto

Xoriguer comú, Cernícalo vulgar (VER0000169)

Altres noms vulgars: Common kestrel (Anglès), Faucon crécerelle (Francès), Turmfalke (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 3-3 MachoMacho Adultos