User profiles for "author:Sílvia Costa"

Sílvia Costa

Assistant Professor of Entrepreneurship, University of Groningen, Faculty of Economics and …
Verified email at rug.nl
Cited by 712

Signalling by tips

JA Feijó, SS Costa, AM Prado, JD Becker… - Current opinion in plant …, 2004 - Elsevier
New molecules, including protein kinases, lipids and molecules that have neurotransmitter
activities in animals have emerged as important players in tip-growing cells. Transcriptomics …

Ampicillin/sulbactam compared with polymyxins for the treatment of infections caused by carbapenem-resistant Acinetobacter spp.

MS Oliveira, GVB Prado, SF Costa… - Journal of …, 2008 - academic.oup.com
Background There has been an increase in worldwide infections caused by carbapenem-
resistant Acinetobacter. This poses a therapeutic challenge as few treatment options are …

[HTML][HTML] Spectroscopic studies on the interaction of a water soluble porphyrin and two drug carrier proteins

SM Andrade, SMB Costa - Biophysical journal, 2002 - cell.com
The interaction of meso-tetrakis (p-sulfonatophenyl) porphyrin (TSPP) sodium salt to human
serum albumin and β-lactoglobulin was studied by steady-state and dynamic fluorescence …

Recognizing opportunities across campus: The effects of cognitive training and entrepreneurial passion on the business opportunity prototype

SF Costa, SC Santos, D Wach… - Journal of Small Business …, 2018 - Taylor & Francis
We analyze the effects of the program Cognitive Entrepreneurial Training in Opportunity
Recognition on the accurate assessment of prototypical viability of business opportunities …

[HTML][HTML] Fluorescence spectroscopy of porphyrins and phthalocyanines: some insights into supramolecular self-assembly, microencapsulation, and imaging …

R Teixeira, VV Serra, D Botequim, PMR Paulo… - Molecules, 2021 - mdpi.com
The molecular interactions of anionic tetrasulfonate phenyl porphyrin (TPPS) with poly
(amido amine)(PAMAM) dendrimers of generation 2.0 and 4.0 (G2 and G4, respectively) …

[HTML][HTML] Conformational transitions in β-lactoglobulin induced by cationic amphiphiles: equilibrium studies

MI Viseu, TI Carvalho, SMB Costa - Biophysical journal, 2004 - cell.com
The conformational transition from the native state in water (" β-state") to a state containing a
considerable amount of α-helices (" α-state") was studied for the protein β-lactoglobulin …

Values matter, Don't They?–combining theory of planned behavior and personal values as predictors of social entrepreneurial intention

P Kruse, D Wach, S Costa… - Journal of Social …, 2019 - Taylor & Francis
In the face of growing social inequality, social entrepreneurship (SE) is considered to be a
sustainable way to account for unmet social needs. Research acknowledges that SE …

Flavonoids and astrocytes crosstalking: implications for brain development and pathology

J Nones, J Stipursky, SL Costa, FCA Gomes - Neurochemical research, 2010 - Springer
Flavonoids are naturally occurring polyphenolic compounds that are present in a variety of
fruits, vegetables, cereals, tea, and wine, and are the most abundant antioxidants in the …

Self-aggregation of free base porphyrins in aqueous solution and in DMPC vesicles

SM Andrade, R Teixeira, SMB Costa, AJFN Sobral - Biophysical Chemistry, 2008 - Elsevier
Free base porphyrin (PPhe), derivatized with aminosulfonyl groups linked to the aromatic
amino acid phenylalanine at the meso-positions, was mixed with DMPC vesicles. The …

Predictors of entrepreneurial activity before and during the European economic crisis

SC Santos, A Caetano, P Spagnoli, SF Costa… - International …, 2017 - Springer
The aim of this study is to analyze the role of individual characteristics and social norms as
variables that explain early-stage entrepreneurial activity before and during the European …