H
Helena I. S. Nogueira
Researcher at University of Coimbra
Publications - 205
Citations - 6247
Helena I. S. Nogueira is an academic researcher from University of Coimbra. The author has contributed to research in topics: Overweight & Raman spectroscopy. The author has an hindex of 38, co-authored 195 publications receiving 5048 citations. Previous affiliations of Helena I. S. Nogueira include University of Western Australia & University of Reading.
Papers
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Journal ArticleDOI
Vibrational spectroscopic (FT-IR, FT-Raman, SERS) and quantum chemical calculations of 3-(10,10-dimethyl-anthracen-9-ylidene)-N,N,N-trimethylpropanaminiium chloride (Melitracenium chloride).
Y. Shyma Mary,Y. Shyma Mary,P.J. Jojo,Christian Van Alsenoy,Manpreet Kaur,M. S. Siddegowda,Hemmige S. Yathirajan,Helena I. S. Nogueira,Sandra M. A. Cruz +8 more
TL;DR: The presence anthracene ring modes in the SERS spectrum suggest a tilted orientation with respect to the metal surface, and the methyl groups in the title molecule are also close to theMetal surface.
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Surface-enhanced Raman scattering (SERS) of 3-aminosalicylic and 2-mercaptonicotinic acids in silver colloids
TL;DR: The surface-enhanced Raman (SER) spectra of 3-aminosalicylic acid and 2-mercaptonicotinic acid on silver colloids were obtained in this paper.
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Individual and environmental factors associated for overweight in urban population of Brazil.
Larissa Loures Mendes,Helena I. S. Nogueira,Cristina Padez,Maria Ferrão,Gustavo Velasquez-Melendez +4 more
TL;DR: The social environment variables relating to the socioeconomic deprivation of the neighborhood and the built environment variables relate to higher walkability were significantly associated with overweight and obesity in Belo Horizonte.
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Image analysis technique applied to lock-exchange gravity currents
TL;DR: In this paper, an image analysis technique is used to estimate the two-dimensional instantaneous density field of unsteady gravity currents produced by full-depth lock-release of saline water.
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Second- and third-row transition-metal complexes of dihydroxybenzoic acids, and the crystal structure of [NMe4]2[MoO2(2,3-dhb)2]·1.5H2O (2,3-H2dhb = 2,3-dihydroxybenzoic acid)
William P. Griffith,Helena I. S. Nogueira,Bernardeta C. Parkin,Richard N. Sheppard,Andrew J. P. White,David J. Williams +5 more
TL;DR: The new complexes [MO2L2]2] and [M(PPh3)2(2,3-dhb)2]·1.5H2O have been determined and exhibits catecholato rather than salicylato type bonding.