Výsledky vyhledávání - "Karina A. Crespo"

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First Report in Cuba: Lasiodiplodia pseudotheobromae as Causal Agent of Dieback in Murraya Paniculata (L.) Jacq. (Rutaceae)

Autor: Reinaldo I Cabrera, Ana Maria Manzano, Sara Herrera, Yoandy Toledo, Karina L Crespo, Juan Manuel Sanchez-Yanez

Publikováno v: Scientific Modelling and Research. 7:7-11

In Cuba and in other parts of the world, Murraya paniculata is an ornamental plant as well as agricultural crops of economic value that has presented chlorotic leaves, defoliation and regressive death, which suggests that it is a phytopathogenic fung

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e63fcf6d8b5407630fa2816e2776b3a1
https://doi.org/10.55284/smr.v7i1.705

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Estudo da Compressão Primária de Resíduos Sólidos Urbanos (RSU) Aterrados / Study of the Primary Compression of Grounded Municipal Solid Waste (MSW)

Autor: Léa Beatriz Dai-Prá, Alessandra Wirth, Karina Escandiel Crespo, Luciana Paulo Gomes, Marcelo Oliveira Caetano, Graziela Taís Schmitt, Gisele C. S. Silva

Publikováno v: Brazilian Journal of Development. 7:39216-39238

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b63175ceafed4bfea466454a9d4900a
https://doi.org/10.34117/bjdv7n4-401

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Akademický článek

MOTIVACIÓN, CONSUMO Y APRECIACIONES DE FACEBOOK POR PARTE DE JÓVENES UNIVERSITARIOS: EL CASO DE LA RED UCSC CHILE

Autor: KARINA LORETO CRESPO, ÁLVARO ELGUETA RUIZ, ALEJANDRO RIFFO PARRA

Publikováno v: Última Década, Iss 31, Pp 129-145 (2009)

Facebook se perfila como el Sitio de Redes Sociales (SRS) más popular de Chile. Son miles los jóvenes que establecen una identidad en este portal con el fin de armar su propia red de contactos y, desde ahí, generan una socialización que afecta di

Externí odkaz: https://doaj.org/article/114188474aa44f5cb93101b71206152b

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Photoinduced nucleophilic substitution of iodocubanes with arylthiolate and diphenylphosphanide ions. Experimental and computational approaches

Autor: Karina Fernanda Crespo Andrada, Adriana B. Pierini, Ronny Priefer, Diego M. Andrada, Federico Brigante, Liliana B. Jimenez, Marcelo Puiatti, Roberto A. Rossi

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

A new synthetic route to modify the cubane nucleus is reported here. Methyl-4-iodocubane-1-carboxylate (1) and 1,4-diiodocubane (2) were employed as reagents to react with arylthiolate and diphenylphosphanide ions under irradiation in liquid ammonia

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fd956020a79bf357c57d812ab327322
https://pubs.rsc.org/en/content/articlelanding/2018/RA/C8RA06275G#!divAbstract

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Intra- and extracellular biosynthesis and characterization of iron nanoparticles from Prokaryotic microorganisms with anticoagulant activity

Autor: José L. Baronetti, María G. Paraje, Melisa A. Quinteros, Paulina Laura Páez, Karina A. Crespo

Background: The use of microorganisms for the synthesis of nanoparticles (NPs) is relatively new in basic research and technology areas. Purpose: This work was conducted to optimized the biosynthesis of iron NPs intra- and extracellular by Escherichi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5339776ee57e15870761891fceb62092
https://link.springer.com/article/10.1007/s11095-016-2084-0

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Nucleophilic substitution of bromonorbornenes and derivatives by electron transfer reactions

Autor: Murat Güney, Karina Fernanda Crespo Andrada, Arif Daştan, Lucas Ernesto Peisino, Adriana B. Pierini

Publikováno v: Organicbiomolecular chemistry. 11(6)

The photoinitiated substitution reactions of anti-7-bromobenzonorbornadiene (5), its syn isomer 6, exo–anti-13-bromobenzocyclobutanorbornene (7), syn-7-bromonorbornene (8) and bromonorbornane (9) with Me3Sn− and Ph2P− anions, in liquid ammonia,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02b5af1700fa84b40463b446b9c415cc
https://pubmed.ncbi.nlm.nih.gov/23263719

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Motivación, consumo y apreciaciones de Facebook por parte de jóvenes universitarios: El caso de la Red UCSC Chile

Autor: Alejandro Riffo Parra, Karina Loreto Crespo, Álvaro Elgueta Ruiz

Publikováno v: Ultima década v.17 n.31 2009
SciELO Chile
CONICYT Chile
instacron:CONICYT

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a020cc1479d601d9610f2924f7c30ce
https://doi.org/10.4067/s0718-22362009000200008

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Radical nucleophilic substitution of 2-(4-halophenyl)-2-methyl-1-chloropropane with enolate ions of ketones

Autor: Mariana H. Gallego, Karina Fernanda Crespo Andrada, Adriana B. Pierini

Publikováno v: The Journal of organic chemistry. 72(8)

The photoinitiated reaction of 2-(4-halophenyl)-2-methyl-1-chloropropane 2a,b (halogen=Br, I, respectively) with the anions of pinacolone (3a) and acetophenone (3b) either in DMSO or in liquid ammonia are reported. In DMSO, the main reaction is the S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41784b3af1d331907f8358e3eaa360d9
https://pubmed.ncbi.nlm.nih.gov/17367191

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