Search Results - "Alexandra Silva"

Multiple pulse amperometry in low pressure chromatography for parallel determination of oxidizable and reducible compounds. Analysis of a green coffee extract as a case study by Rangel Silva, Alexandra, Almeida, Paulo J., Santos, João Rodrigo

“…In this paper, the determination of both oxidizable and reducible compounds within a single chromatographic run is exploited for the first time, using a…”
Get full text

Cultural probes for environmental education: Designing learning materials to engage children and teenagers with local biodiversity by Matos, Sónia, Silva, Alexandra R, Sousa, Duarte, Picanço, Ana, R Amorim, Isabel, Ashby, Simone, Gabriel, Rosalina, Arroz, Ana Moura

“…Direct contact with nature is paramount in deepening children's and teenagers' interest in biodiversity. Learning materials chosen to convey information and…”
Get full text

Life cycle analysis of energy supply infrastructure for conventional and electric vehicles by Lucas, Alexandre, Alexandra Silva, Carla, Costa Neto, Rui

“…Electric drive vehicle technologies are being considered as possible solutions to mitigate environmental problems and fossil fuels dependence. Several studies…”
Get full text

Incorporation of fine plastic aggregates in rendering mortars by da Silva, Alexandra M., de Brito, Jorge, Veiga, Rosário

“…•Two types of plastic recycled aggregates up to 15% of sand volume in rendering mortars.•Some properties declined: mechanical and adhesive strength, water…”
Get full text

Optimization of the determination of chemical oxygen demand in wastewaters by Silva, Alexandra M.E. Viana da, Silva, Ricardo J.N. Bettencourt da, Camões, M. Filomena G.F.C.

“…Variation of the percentage contribution, P j , of the major uncertainty components, of the measurement expanded uncertainty ( U) and of the target measurement…”
Get full text

Humans, bees, and pollination services in the city: the case of Chicago, IL (USA) by Lowenstein, David M., Matteson, Kevin C., Xiao, Iyan, Silva, Alexandra M., Minor, Emily S.

“…Despite the global trend in urbanization, little is known about patterns of biodiversity or provisioning of ecosystem services in urban areas. Bee communities…”
Get full text

A novel cyanobacterial geosmin producer, revising GeoA distribution and dispersion patterns in Bacteria by Churro, Catarina, Semedo-Aguiar, Ana P., Silva, Alexandra D., Pereira-Leal, Jose B., Leite, Ricardo B.

“…Cyanobacteria are ubiquitous organisms with a relevant contribution to primary production in all range of habitats. Cyanobacteria are well known for their part…”
Get full text

The Field Guide audio series: mobile learning using place-based and inquiry-led approaches to promote adolescents' interest in nature by Rocha Silva, Alexandra, Matos, Sónia, Gabriel, Rosalina, Moura Arroz, Ana, Sousa, Daniel, Piasentin, Flora, Amorim, Isabel Rosário

“…Facilitating the exploration of adolescents' questions regarding nature is vital. Research suggests that their questions are important as they can reveal their…”
Get full text

Niobium-Doped Hydroxyapatite Bioceramics: Synthesis, Characterization and In Vitro Cytocompatibility by Capanema, Nádia S V, Mansur, Alexandra A P, Carvalho, Sandhra M, Silva, Alexandra R P, Ciminelli, Virginia S, Mansur, Herman S

“…Doping calcium phosphates with ionic species can play an important role in biological responses promoting alkaline phosphatase activity, and, therefore…”
Get full text

Caloric restriction or catalase inactivation extends yeast chronological lifespan by inducing H₂O₂ and superoxide dismutase activity by Mesquita, Ana, Weinberger, Martin, Silva, Alexandra, Sampaio-Marques, Belém, Almeida, Bruno, Leão, Cecília, Costa, Vítor, Rodrigues, Fernando, Burhans, William C, Ludovico, Paula

“…The free radical theory of aging posits oxidative damage to macromolecules as a primary determinant of lifespan. Recent studies challenge this theory by…”
Get full text

Generalizing determinization from automata to coalgebras by Silva, Alexandra, Bonchi, Filippo, Bonsangue, Marcello, Rutten, Jan

“…The powerset construction is a standard method for converting a nondeterministic automaton into a deterministic one recognizing the same language. In this…”
Get full text

CLASP2 binding to curved microtubule tips promotes flux and stabilizes kinetochore attachments by Girão, Hugo, Okada, Naoyuki, Rodrigues, Tony A, Silva, Alexandra O, Figueiredo, Ana C, Garcia, Zaira, Moutinho-Santos, Tatiana, Hayashi, Ikuko, Azevedo, Jorge E, Macedo-Ribeiro, Sandra, Maiato, Helder

“…CLASPs are conserved microtubule plus-end-tracking proteins that suppress microtubule catastrophes and independently localize to kinetochores during mitosis…”
Get full text

Screening of Antioxidant Compounds in Green Coffee by Low-Pressure Chromatography with Amperometric Detection by Rangel Silva, Alexandra, Santos, João Rodrigo, Almeida, P. J., Rodrigues, J. A.

“…In this work, the electrochemical determination of antioxidant compounds in green coffee beans using a low-pressure chromatographic system based on a single…”
Get full text

Detection of a Planktothrix agardhii Bloom in Portuguese Marine Coastal Waters by Churro, Catarina, Azevedo, Joana, Vasconcelos, Vitor, Silva, Alexandra

“…Cyanobacteria blooms are frequent in freshwaters and are responsible for water quality deterioration and human intoxication. Although, not a new phenomenon,…”
Get full text

Diversity and regional distribution of harmful algal events along the Atlantic margin of Europe by Bresnan, Eileen, Arévalo, Fabiola, Belin, Catherine, Branco, Maria A.C., Cembella, Allan D., Clarke, Dave, Correa, Jorge, Davidson, Keith, Dhanji-Rapkova, Monika, Lozano, Raul Fernández, Fernández-Tejedor, Margarita, Guðfinnsson, Hafsteinn, Carbonell, David Jaén, Laza-Martinez, Aitor, Lemoine, Maud, Lewis, Adam M., Menéndez, Luz Mamán, Maskrey, Benjamin H., McKinney, April, Pazos, Yolanda, Revilla, Marta, Siano, Raffaele, Silva, Alexandra, Swan, Sarah, Turner, Andrew D., Schweibold, Laura, Provoost, Pieter, Enevoldsen, Henrik

“…•The IOC-ICES-PICES HAEDAT contains baseline information on harmful algal events in Europe•Diarrhetic Shellfish Toxins have the most impact on the shellfish…”
Get full text

The silence of the letters: Slavery, education and freedom in Rio de Janeiro (Brazil, 19th century) by Lima Da Silva, Alexandra

“…Objective: The goal of this paper is deciphering the “silence of letters” and to understand the meanings of enslaved and freed people’s education and…”
Get full text

Interactions between the common dolphin, Delphinus delphis, and the Portuguese purse seine fishery over a period of 15 years (2003–2018) by Dias, Inês C., Marçalo, Ana, Feijó, Diana, Domingos, Isabel, Silva, Alexandra A.

“…Interactions between cetaceans and the purse seine fishery in coastal waters of mainland Portugal were investigated using onboard observations over a period of…”
Get full text

Fragments of Myself: Autobiographical Writing as Freedom Practice in the Experience of an Afro-Latina Professor by da Silva, Alexandra Lima

“…To address the disinterest, and push forward our freedom, this paper presents an autobiographical essay and desires to explore the way telling a life story…”
Get full text

Fungiform Papillae and Gustatory Function in Neurofibromatosis Type 1: A Case-Control Study by Kleinsorgen, Flavia, Luna, Eloá Borges, de Pinho Montovani, Pâmella, Xavier, Analucia Rampazzo, Silva, Alexandra Anastacio Monteiro, Rozza-de-Menezes, Rafaela Elvira, Cunha, Karin Soares

“…Fungiform papillae enlargement is a common oral manifestation of neurofibromatosis type 1 (NF1). This study aimed to objectively evaluate the size, number, and…”
Get full text

Collective electrical oscillations of a diatom population induced by dark stress by Rocha, Paulo R. F., Silva, Alexandra D., Godinho, Lia, Dane, Willem, Estrela, Pedro, Vandamme, Lode K. J., Pereira-Leal, Jose B., de Leeuw, Dago M., Leite, Ricardo B.

“…Diatoms are photosynthetic microalgae, a group with a major environmental role on the planet due to the biogeochemical cycling of silica and global fixation of…”
Get full text