Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Márcia Miguel Castro Ferreira"'
Publikováno v:
Química Nova, Vol 45, Iss 10, Pp 1251-1264 (2023)
In this work, three methods for pattern recognition, used as exploratory data analysis, are revisited. A brief review of principal component analysis, PCA, an unsupervised method, is provided. Next, the Mahalanobis distance and the confidence ellipse
Externí odkaz:
https://doaj.org/article/0e3f63b75fad47faa3e06b022795d96b
Autor:
Silvia Helena Bonfim Gomes Rodrigues, Márcia Miguel Castro Ferreira, Joaquim Araújo Nóbrega, Ana Rita Araujo Nogueira
Publikováno v:
Eclética Química, Vol 27, Iss 2 (2018)
The contents of Ca, Cu, K, Mg, Na, P and S were simultaneously determined in grape juices and soft drinks using ICP-OES. The experimental results were analyzed by methods of exploratory analysis: principal component analysis (PCA) and hierarchical cl
Externí odkaz:
https://doaj.org/article/13d28034f349425f89f78cd73f57f336
Autor:
Marcos Yassuo Kamogawa, Márcia Miguel Castro Ferreira, Joaquim Araújo Nóbrega, Ana Rita Araujo Nogueira
Publikováno v:
Eclética Química, Vol 27, Iss 2 (2018)
The correlation and grouping of mineral waters from different regions of São Paulo state was carried out using exploratory analysis of pH values and Ba, Ca, K, Mg, Na and V contents. By using principal components analysis (PCA) and hierarchical clus
Externí odkaz:
https://doaj.org/article/ec96c5720184487da0733122148ad851
Autor:
Fabiana Alves de Lima Ribeiro, Márcia Miguel Castro Ferreira, Sandra Campilongo Morano, Lucimara Rodrigues da Silva, René Peter Schneider
Publikováno v:
Química Nova, Vol 31, Iss 1, Pp 164-171 (2008)
This work presents the VALIDATION SPREADSHEET, a public domain tool that can be used to evaluate the figures of merit for univariate analytical methods. A real example of BTEX determination in environmental samples is included to illustrate its use.
Externí odkaz:
https://doaj.org/article/637e092e95d84657b8f6cd4f9373e367
Publikováno v:
Química Nova, Vol 29, Iss 3, Pp 555-562 (2006)
Externí odkaz:
https://doaj.org/article/6e1713efa81d4d74826c2eb8d0e59011
Publikováno v:
Química Nova, Vol 25, Iss 3, Pp 439-448 (2002)
The process of building mathematical models in quantitative structure-activity relationship (QSAR) studies is generally limited by the size of the dataset used to select variables from. For huge datasets, the task of selecting a given number of varia
Externí odkaz:
https://doaj.org/article/030c96f0ff2949cd8e858cae7fca6e27
Autor:
Osmair Vital de Oliveira, Maria Cristina Andreazza Costa, Ricardo Marques da Costa, Rafael Giordano Viegas, Andrew S. Paluch, Márcia Miguel Castro Ferreira
Publikováno v:
Journal of Biomolecular Structure and Dynamics. 41:1603-1616
COVID-19, a disease caused by the SARS-CoV-2 virus, is responsible for a pandemic since March 2020 and it has no cure. Therefore, herein, different theoretical methods were used to obtain potential candidates from herbal compounds to inhibit the SARS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d7d80febbdc21f3cadaff408538c854
https://doi.org/10.1080/07391102.2021.2023646
https://doi.org/10.1080/07391102.2021.2023646
Autor:
Róbson Ricardo Teixeira, Poliana Aparecida Rodrigues Gazolla, Maria Paula Gonçalves Borsodi, Márcia Miguel Castro Ferreira, Maria Cristina Andreazza Costa, Adilson Vidal Costa, Beatriz Cabral Abreu Grijó, Bartira Rossi Bergmann, Wallace Pacienza Lima
Publikováno v:
Experimental parasitology. 238
Leishmaniasis is a group of neglected vector-borne tropical diseases caused by protozoan parasites of the genus Leishmania that multiply within phagocytic cells and have a wide range of clinical manifestations. Cutaneous leishmaniasis (CL) is a serio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73ed97c89343e7dcb502134cd4050ad8
https://pubmed.ncbi.nlm.nih.gov/35526574
https://pubmed.ncbi.nlm.nih.gov/35526574
Autor:
Róbson Ricardo, Teixeira, Marcus Vinícius, de Andrade Barros, Gustavo Costa, Bressan, Raoni Pais, Siqueira, Fabíola Suelen, Dos Santos, Michele, Bertazzini, Rudolf, Kiralj, Márcia Miguel Castro, Ferreira, Giuseppe, Forlani
Publikováno v:
Pest management science. 73(11)
The photosynthetic apparatus is targeted by various herbicides, including several amides such as diuron and linuron. Considering the need for the discovery of new active ingredients to cope with weed resistance, the synthesis of a series of trifluoro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b7c728057f7ea5f66ca8b7980de990a7
https://pubmed.ncbi.nlm.nih.gov/28544262
https://pubmed.ncbi.nlm.nih.gov/28544262
