Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Célio Wisniewski"'
Publikováno v:
Iheringia: Série Zoologia, Vol 103, Iss 2, Pp 110-117 (2013)
Species of Chydoridae provide the main diversity of the Cladocera. These organisms have been the subject of many studies; some dealing with their role in energy flow in aquatic ecosystems, since they inhabit the littoral region of water bodies which
Externí odkaz:
https://doaj.org/article/1e191d04f2c24e08a8c05597b2e74f61
Autor:
Rômulo R.R. de Melo, Paula N. Coelho, Maria J. dos Santos-Wisniewski, Célio Wisniewski, Cristiana S. Magalhães
Publikováno v:
Journal of Limnology, Vol 76, Iss 1 (2016)
In zooplankton communities, morphological changes in Cladocera (Crustacea: Branchiopoda) may be resulting from water pollution by anthropogenic activities and/or natural events. The removal of vegetation cover, urbanization, agriculture and sewage re
Externí odkaz:
https://doaj.org/article/e4875a7e4a5143d0a9f1fd2bd0550bf4
Autor:
Maria Carolina de A. Castilho, Maria José dos S. Wisniewski, Célio Wisniewski, Érika dos S. Silva
Publikováno v:
Iheringia: Série Zoologia, Vol 106, Iss 0 (2016)
ABSTRACT Richness estimators (Jackknife 1, Bootstrap, Chao 1 and ACE) were used to relate zooplankton species richness with amount of water collected per sample and number of samples throughout the year for the limnetic region of Sapucai River compar
Externí odkaz:
https://doaj.org/article/79f7a06366e84f4f81d1fb612f91962d
Autor:
Erika dos Santos Silva, Cínthia Bruno de Abreu, Tereza Cristina Orlando, Célio Wisniewski, Maria José dos Santos-Wisniewski
Publikováno v:
PLoS ONE, Vol 9, Iss 5, p e97050 (2014)
Knowledge of reproductive rates and life cycle of the Cladocera species is essential for population dynamic studies, secondary production and food webs, as well as the management and preservation of aquatic ecosystems. The present study aimed to unde
Externí odkaz:
https://doaj.org/article/53741aa5ed77423e872eacf92d0b8cee
Autor:
Célio Wisniewski
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
Neste trabalho, foram desenvolvidos e implementados três métodos experimentais, o método de corrente constante - CC (adaptado a partir do triodo de corona à corrente constante), o método de rampa de tensão - RT (adaptado a partir do método bip
Autor:
Pedro Marcos Frugeri, Ayla Campos do Lago, Célio Wisniewski, Marcello Henrique da Silva Cavalcanti, Eduardo Costa Figueiredo, César Ricardo Teixeira Tarley, Pedro Orival Luccas
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 241
In this work, magnetic restricted-access carbon nanotubes (M-RACNTs) were synthesized, characterized and used in the dispersive solid-phase extraction (d-SPE) of organophosphate pesticides (OPPs) from food samples (broccoli, eggplant, cauliflower, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ee1fa9331b4b6a7a3d37e3385756186
https://pubmed.ncbi.nlm.nih.gov/32650243
https://pubmed.ncbi.nlm.nih.gov/32650243
Autor:
Pedro Marcos Frugeri, Célio Wisniewski, Ayla Campos do Lago, Camila Marchioni, Pedro Orival Luccas
Publikováno v:
Analytical Letters. 51:1492-1504
This work proposes a flow injection analysis system for sulfaguanidine determination in pharmaceutical and food samples. The method was based on the reaction of sulfaguanidine with nitronium ion to...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f83f20c8c403b5d78428747b6f885342
https://doi.org/10.1080/00032719.2017.1383412
https://doi.org/10.1080/00032719.2017.1383412
Autor:
Célio Wisniewski, Giovanna Rodrigues Mazzuia, Keyller Bastos Borges, Eduardo Costa Figueiredo, Carolina Nasser Boscari
Publikováno v:
ELECTROPHORESIS. 38:1083-1090
Hippuric acid (HA) and 4-methylhippuric acid (4-MHA) are metabolites as well as biological indicators for toluene and xylenes, respectively, and their determination in urine samples is very important, in order to monitor the occupational exposition t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddf552de1c530336d6e9af2ac0cd3c5e
https://doi.org/10.1002/elps.201600382
https://doi.org/10.1002/elps.201600382
Autor:
Camila Marchioni, Célio Wisniewski, Pedro Orival Luccas, Ayla Campos do Lago, Pedro Sergio Fadini, Tássia Venga Mendes
Publikováno v:
Applied Spectroscopy. 70:1842-1850
This work proposes a preconcentration method using an ion imprinted polymer (IIP) for determination of cadmium, in several samples, employing a mini-column filled with the polymer coupled into a flow injection analysis system with detection by thermo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::786be6aeee00ff10483684f939529a93
https://doi.org/10.1177/0003702816658669
https://doi.org/10.1177/0003702816658669
Autor:
Juan A. V. A. Barros, Pedro Orival Luccas, Guilherme de O. Santos, Fagner Moreira de Oliveira, Célio Wisniewski
Publikováno v:
Analytical Letters. 50:414-430
A webcam was used to determine Al(III), total Fe, , and in waters by digital image colorimetry. Least squares regression was used to obtain a quadratic equation based on the red, green, blue, hue, saturation, and brightness color values, which allowe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4009e7e4db7959a4eb8c20d45f77107
https://doi.org/10.1080/00032719.2016.1182542
https://doi.org/10.1080/00032719.2016.1182542