Bruno L. Oliveira, Paula Raposinho, Filipa Mendes, Flávio Figueira, Isabel Santos, António E. N. Ferreira, Carlos Cordeiro, Ana Ponces Freire, João D. G. Correia,
The in vivo molecular imaging of nitric oxide synthase (NOS), the enzyme responsible for the catalytic oxidation of l-arginine to citrulline and nitric oxide (NO), by noninvasive modalities could provide valuable insights into NO/NOS-related diseases. Aiming at the design of innovative 99mTc(I) complexes for targeting inducible NOS (iNOS) in vivo by SPECT imaging, herein we describe a set of novel 99mTc(CO)3 complexes (2−5) and the corresponding rhenium surrogates (2a−5a) containing the NOS inhibitor ...
Tópico(s): Receptor Mechanisms and Signaling
2010 - American Chemical Society | Bioconjugate Chemistry
Cláudia Farinha, Alda S. Baltar, Sandrina Nunes, João Figueira, Isabel Pires, Maria Luz Cachulo, Rufino Silva,
To evaluate the long-term progression of myopic maculopathy and functional outcome after treatment of myopic choroidal neovascularization (CNV) with photodynamic therapy (PDT) and/or intravitreal ranibizumab (IVR).Retrospective study with a cross-sectional evaluation. Eyes were assigned to 4 groups (PDT, IVR, PDT + IVR, dry myopic maculopathy) and evaluated with best-corrected visual acuity, color fundus photography and spectral-domain optical coherence tomography. Chorioretinal atrophy progression was ...
Tópico(s): Glaucoma and retinal disorders
2014 - Karger Publishers | Ophthalmologica
Cláudia Farinha, Alda S. Baltar, Sandrina Nunes, Nuno Franqueira, João Figueira, Isabel Pires, Maria Luz Cachulo, Rufino Silva,
To evaluate choroidal thickness in highly myopic eyes with choroidal neovascularization (CNV), 3 or more years after treatment with photodynamic therapy (PDT), intravitreal ranibizumab (IVR), or both (PDT + IVR).The medical records of patients with high myopia and CNV treated with PDT or IVR in our department were reviewed. Eyes meeting the inclusion criteria were assigned to 3 groups: PDT, IVR, and PDT + IVR. A fourth group, "dry myopic maculopathy," included the contralateral highly myopic eyes that never ...
Tópico(s): Retinal Imaging and Analysis
2013 - SAGE Publishing | European Journal of Ophthalmology
Bruno Carneiro, Paulo Cardoso, Etelvina Figueira, Isabel Lopes, Cátia Venâncio,
With rising global population, new solutions are needed to provide food security in a future ruled by climate changes and ecological instability. The growing areas of degraded soil, due to drought or salinity, that are no longer viable to agriculture, represent a challenge that threatens this goal. Nevertheless, microorganisms like rot fungi and plant growth-promoting rhizobacteria, alone or combined must be explored to improve soils overall health and productivity. They represent potential allies ...
Tópico(s): Biocrusts and Microbial Ecology
2022 - Elsevier BV | Applied Soil Ecology
Dulce Belo, M.J. Figueira, Isabel C. Santos, V. Gama, Laura C. J. Pereira, R.T. Henriques, Manuel Almeida,
Copper complexes with the 2,3-dicyano-5,6-dimercaptopyrazine ligand (dcdmp), Cu(dcdmp)2, were obtained in both monoanionic and dianionic forms as the tetrabutylammonium salts and were characterised, as well as a decamethylferrocenium salt of the dianion. (n-Bu4N)2Cu(dcdmp)2 crystallises in the triclinic system, space group P1¯, Z = 1, with unit cell parameters a = 9.9512(6) Å, b = 10.541(1) Å, c = 13.221(1) Å, α = 69.756(9)°, β = 88.112(6)° and γ = 79.658(7)°. Its crystal structure consists of layers of well isolated ...
Tópico(s): Metal complexes synthesis and properties
2005 - Elsevier BV | Polyhedron
Priscilla Porto-Figueira, Ana Isabel Freitas, Catarina J. Cruz, José A. Figueira, José S. Câmara,
The aim of this work was to gain insights on the volatile composition of nine passion fruits grown at Madeira Island (Portugal) – Yellow, Purple, Lemon, Orange, Pineapple, Peach, Melon, Banana and Tomato – and discriminate between them. The volatile composition of these fruits has been investigated using the same analytical technique, HS–SPME/GC–MS and multivariate analysis (MVA). The selected SPME methodology (DVB/CAR/PDMS fiber at 40 ± 1 °C for 30 min and 10% (w/w) of NaCl under stirring mode (47 × g)) was ...
Tópico(s): Fermentation and Sensory Analysis
2015 - Elsevier BV | Food Research International
Dulce Simão, José A. Ayllón, Sandra Rabaça, M.J. Figueira, Isabel C. Santos, R.T. Henriques, Manuel Almeida,
(n-Bu)4N[Fe(qdt)2] provides the first example of an undimerised FeIII bisdithiolene complex with well isolated square planar coordinated [Fe(qdt)2]− units, due to short apical Fe⋯H, Fe⋯C and S⋯H contacts with the cations, while the tetraphenylarsonium salt of this complex presents the usual dimerisation as [Fe(qdt)2]22−, with square-based pyramidal coordination of Fe.
Tópico(s): Porphyrin and Phthalocyanine Chemistry
2006 - Royal Society of Chemistry | CrystEngComm
Produção Nacional
Revisado por pares
Maria Luísa A. Gonçalves, Deusa Angélica P. Mota, Wildson V. Cerqueira, Daniel André, Larissa Martins Saraiva, Maria Isabel Figueira Coelho, Ana Maria R. F. Teixeira, Marco Antônio Gomes Teixeira,
Tópico(s): Polymer Synthesis and Characterization
2010 - Elsevier BV | Fuel Processing Technology
A. Gomes, M. Navas, Nerea Uranga, Teresa Paiva, Isabel Figueira, Teresa C. Diamantino,
The corrosion rates of AISI 316L and AISI 321H austenitic stainless steel, immersed in a stagnant isothermal mixture of 60% NaNO3 and 40% KNO3 molten salt at 550 °C in atmospheric air are 8.6 and 9.0 µm/yr, respectively. The corrosion mechanism was proposed by recording the weight changes of the steel coupons at different time intervals up to 3000 h, and by the characterization of multilayer oxide scales formed on the steel surface. Multilayers made of different oxides, mainly Fe2O3 and Fe3O4, are ...
Tópico(s): Adsorption and Cooling Systems
2018 - Elsevier BV | Solar Energy
João Graveto, Rita Isabel Figueira Rebola, Elisabete Amado Fernandes, Paulo Santos‐Costa,
ABSTRACT Objective: Hand hygiene plays a key role in the prevention of healthcare-associated infections. Therefore, this study aims to analyze nurses’ adherence to hand hygiene and identify intervention strategies to improve this procedure. Method: Integrative literature review, using the Cochrane methodology, to answer the following question: “What is the level of effectiveness of training in improving nurses’ adherence to hand hygiene?”. Results: Studies show that nurses’ adherence to hand hygiene ...
Tópico(s): Burn Injury Management and Outcomes
2018 - Associação Brasileira de Enfermagem | Revista Brasileira de Enfermagem
Florian Sutter, Ceyhun Oskay, Mathias C. Galetz, Teresa C. Diamantino, Fátima Pedrosa, Isabel Figueira, Stefan Glumm, Alexander Bonk, Alina Agüero, Sergio Rodríguez, Tomás Jesús Reche-Navarro, Simon Caron,
Potassium nitrate and sodium nitrate in mixing proportion of KNO3–NaNO3 40-60 wt% (also called solar salt) has been successfully used for over a decade as heat storage medium for concentrated solar power parabolic-trough collector plants at temperatures up to 400 °C. At temperatures of 560 °C, reached in state-of-the-art solar tower systems, corrosion of metallic components in contact with solar salt can become an issue and has caused leaks and plant shut-downs in recently built tower projects. While ...
Tópico(s): Solar Energy Systems and Technologies
2021 - Elsevier BV | Solar Energy Materials and Solar Cells
Produção Nacional
Revisado por pares
Jessica Sanches Braga Figueira, Isabel A. David, Isabela Lobo, Luiza Bonfim Pacheco, Mirtes Garcia Pereira, Letícia Oliveira, Andreas Keil,
Motivationally/emotionally engaging stimuli are strong competitors for the limited capacity of sensory and cognitive systems. Thus, they often act as distractors, interfering with performance in concurrent primary tasks. Keeping task-relevant information in focus while suppressing the impact of distracting stimuli is one of the functions of working memory (WM). Macroscopic brain oscillations in the alpha band (8–13 Hz) have recently been identified as a neural correlate of WM processing. Using electroencephalography, ...
Tópico(s): Neural and Behavioral Psychology Studies
2020 - Springer Science+Business Media | Cognitive Affective & Behavioral Neuroscience
MELINDA D. VELTMEYER, Alexander C. McFarlane, Richard A. Bryant, Therese Mayo, Evian Gordon, C. Richard Clark,
... dimensional PTSD literatureIsabela Lobo, Liana Catarina Portugal, Ivan Figueira, Eliane Volchan and Isabel David et al.1 Sep 2015 | Journal of ...
Tópico(s): Stress Responses and Cortisol
2006 - Imperial College Press | Journal of Integrative Neuroscience
Ángeles Parrilla Latas, Manuela Raposo Rivas, María Esther Martínez Figueira, M.a Isabel Doval,
<p>Fotovoz es una metodología de investigación-acción participativa que a través de un uso de fotografías y otros recursos producidos por los participantes promueve la reflexión y mejora sobre cuestiones relacionadas con sus propias necesidades y la comunidad a la que pertenecen. Este artículo, constituye un primer acercamiento a la reflexión sobre el papel que fotovoz puede jugar en la promoción de prácticas inclusivas. Basándonos en su desarrollo en una investigación llevada a cabo en seis ...
Tópico(s): Education in Rural Contexts
2017 - University of Murcia | Educatio Siglo XXI
Produção Nacional
Revisado por pares
Isabela Lobo, Liana Catarina Lima Portugal, Ivan Figueira, Eliane Volchan, Isabel A. David, Mirtes Garcia Pereira, Letícia Oliveira,
Considering the Research Domain Criteria (RDoC) framework, it is crucial to investigate posttraumatic stress disorder (PTSD) as a spectrum that ranges from normal to pathological. This dimensional approach is especially important to aid early PTSD detection and to guide better treatment options. In recent years, electroencephalography (EEG) has been used to investigate PTSD; however, reviews regarding EEG data related to PTSD are lacking, especially considering the dimensional approach. This systematic ...
Tópico(s): Psychosomatic Disorders and Their Treatments
2015 - Elsevier BV | Journal of Affective Disorders
João P. M. Nunes, M.J. Figueira, Dulce Belo, Isabel C. Santos, Bruno Ribeiro, Elsa B. Lopes, R.T. Henriques, J. Vidal-Gancedo, Jaume Veciana, Concepció Rovira, Manuel Almeida,
Abstract The gold and nickel bisdithiolene complexes based on new highly extended ligands incorporating fused tetrathiafulvalene and thiophene moieties (α‐tdt=thiophenetetrathiafulvalenedithiolate and dtdt=dihydro‐ thiophenetetrathiafulvalenedithiolate), were prepared and characterised by using cyclic voltammetry, single crystal X‐ray diffraction, EPR, magnetic susceptibility and electrical transport measurements. These complexes, initially obtained under anaerobic conditions as diamagnetic gold ...
Tópico(s): Perovskite Materials and Applications
2007 - Wiley | Chemistry - A European Journal
Dulce Belo, M.J. Figueira, Joana Mendonça, Isabel C. Santos, Manuel Almeida, R.T. Henriques, M. Teresa Duarte, Concepció Rovira, Jaume Veciana,
Abstract The preparation and characterisation of new thiophenedithiolate complexes of Cu, Co and Pt with the ligands α‐tpdt and tpdt (α‐tpdt = 2,3‐thiophenedithiolate, tpdt = 3,4‐thiophenedithiolate) is reported. The Co and Pt complexes present regular square‐planar coordination geometry and low oxidation potentials when compared with complexes with simpler ligands, but their monoanionic state is found to be rather unstable. The Co(tpdt) 2 complex can be isolated both in the monoanionic and dianionic ...
Tópico(s): Organometallic Compounds Synthesis and Characterization
2005 - Wiley | European Journal of Inorganic Chemistry
Ana Sara Costa, José Rui Figueira, Carlos Vieira, Isabel Vieira,
Abstract In the 2010 Toronto summit, the leaders of the G‐20 countries agreed on the implementation of urgent fiscal consolidation plans, following the expansionary policies adopted to curb the recessionary effects of the financial crisis. Unprecedented cuts in public expenditures have taken place, particularly in the European Union periphery, reviving the discussion on the optimal size of the public sector. Supporters of fiscal restraint defend that bigger governments tend to be more inefficient, ...
Tópico(s): Local Government Finance and Decentralization
2017 - Wiley | International Transactions in Operational Research
Ricardo Soares, Jesús Trejo, María J. Lorite, Etelvina Figueira, Juan Sanjuán, Isabel Videira e Castro,
Lotus spp. are widely used as a forage to improve pastures, and inoculation with elite rhizobial strains is a common practice in many countries. However, only a few Lotus species have been studied in the context of plant-rhizobia interactions. In this study, forty highly diverse bacterial strains were isolated from root nodules of wild Lotus parviflorus plants growing in two field locations in Portugal. However, only 10% of these isolates could nodulate one or more legume hosts tested, whereas 90% ...
Tópico(s): Plant-Microbe Interactions and Immunity
2020 - Multidisciplinary Digital Publishing Institute | Microorganisms
Produção Nacional
Revisado por pares
Camila Monteiro Fabrício Gama, Liana Catarina Lima Portugal, Raquel Gonçalves, Sérgio de Souza, Liliane Maria Pereira Vilete, Mauro V. Mendlowicz, Ivan Figueira, Eliane Volchan, Isabel A. David, Letícia Oliveira, Mirtes Garcia Pereira,
Abstract Background Childhood maltreatment (CM) is unfortunately widespread globally and has been linked with an increased risk of a variety of psychiatric disorders in adults, including posttraumatic stress disorder (PTSD). These associations are well established in the literature for some maltreatment forms, such as sexual and physical abuse. However, the effects of emotional maltreatment are much less explored, even though this type figures among the most common forms of childhood maltreatment. ...
Tópico(s): Migration, Health and Trauma
2021 - BioMed Central | BMC Psychiatry
Sérgio Leal, Rufino Silva, João Figueira, Maria Luz Cachulo, Isabel Pires, J. R. Faria de Abreu, José Cunha‐Vaz,
In Brief Purpose: The purpose of this study was to evaluate the efficacy of verteporfin photodynamic therapy on the treatment of polypoidal choroidal vasculopathy. Methods: A prospective, nonrandomized institutional study was conducted involving 42 eyes of 38 patients with newly diagnosed symptomatic polypoidal choroidal vasculopathy treated exclusively with photodynamic therapy. Twenty-seven eyes completed 3 years of follow-up. Subjects were observed every 3 months with evaluation of best-corrected ...
Tópico(s): Retinal and Optic Conditions
2010 - Lippincott Williams & Wilkins | Retina
Cláudia Farinha, João Pedro Marques, Elisabete Almeida, Alda S. Baltar, Ana Rita Santos, Pedro Melo, Miguel Costa, João Figueira, Maria Luz Cachulo, Isabel Pires, Rufino Silva,
To evaluate long-term results and predictors of efficacy in patients with macular edema due to retinal vein occlusion (RVO) treated with intravitreal ranibizumab in a clinical practice setting.The clinical records of patients with a minimum follow-up of 3 years were retrospectively analyzed. Sixteen eyes with branch RVO (BRVO) and 16 with central RVO (CRVO) were included. All patients performed cross-sectional evaluation with best-corrected visual acuity (BCVA), spectral domain optical coherence tomography ...
Tópico(s): Ocular Diseases and Behçet’s Syndrome
2015 - Karger Publishers | Ophthalmic Research
Fernando A. Costa Oliveira, Isabel Figueira Vasques, Jorge Cruz Fernandes, Inmaculada Cañadas, J. Rodríguez, Luı́s Guerra Rosa, Nobumitsu Shohoji,
Low-temperature (600–800 °C) short-time (30–90 min) nitriding of IVa-group transition metals, Ti and Zr, in flow of NH3 gas (uncracked ammonia) was carried out under heating with concentrated solar beam in the vertical type SF5 solar furnace at PSA (Plataforma Solar de Almería) in Tabernas, Spain. Due to low nitriding temperature and short reaction duration, full conversion of starting metallic material to nitride was not realized as a matter of course. Nevertheless, detectable extent of nitriding appeared ...
Tópico(s): Ammonia Synthesis and Nitrogen Reduction
2016 - Elsevier BV | Solar Energy
Dulce Belo, M.J. Figueira, João P. M. Nunes, Isabel C. Santos, Laura C. J. Pereira, V. Gama, Manuel Almeida, Concepció Rovira,
Three new salts RBzPy+[Ni(α-tpdt)2]− (α-tpdt = 2,3-thiophenedithiolate, BzPy = benzylpyridine, R = H, Br, F) were prepared and structurally and magnetically characterized. A common structural feature of these compounds is the arrangement of the anions with thiophenic sulfur atoms connecting to a coordinating sulfur atom of a neighbouring anion, placed almost perpendicular to each other. The cations are positioned with the pyridine rings inserted between thiophenic rings of anions, maximizing π–π interactions. ...
Tópico(s): Organometallic Compounds Synthesis and Characterization
2006 - Royal Society of Chemistry | Journal of Materials Chemistry
Sara Figueira, Virgílio António Cruz Machado, Isabel L. Nunes,
Nowadays many companies are undergoing organizational transformations in order to meet the changing market demands. Thus, in order to become more competitive, supply chains (SC) are adopting new management paradigms to improve SC performance: lean, a
Tópico(s): Sustainable Supply Chain Management
2012 - IOS Press | Work
Aimee Summers, Eva Leidman, Isabel Maria Pereira Figueira Periquito, Oleg Bilukha,
Older persons are often unable to leave conflict areas; however, little is known about the mental and physical health among this population. Our objective was to determine the prevalence of and whether there was an association between psychological distress and disability among older persons affected by conflict in eastern Ukraine.We conducted a cluster-randomized cross-sectional household survey of persons aged ≥60 years in government and non-government controlled areas (GCA and NGCA) of Donetsk ...
Tópico(s): Employment and Welfare Studies
2019 - BioMed Central | Conflict and Health
Dulce Belo, M.J. Figueira, João P. M. Nunes, Isabel C. Santos, Manuel Almeida, Núria Crivillers, Concepció Rovira,
Two new TTF-based donors that are dithiolene ligand precursors, 3-{5-[(2-cyanoethyl)thio]-2-(5,6-dihydrothieno[2,3-d][1,3]dithiol-2ylidene-1,3-dithiol-4-yl)thio}propanenitrile, dtdt (1) and 3-({5-[(2-cyanoethyl)thio]-2-thieno[2,3-d][1,3]dithiol-2-ylidene-1,3-dithiol-4yl)thio}propanenitrile, a-tdt (2), were synthesized and characterized. The electrochemical properties of these compounds were studied by cyclic voltammetry (CV) in acetonitrile. Compound 1 shows two reversible oxidation process at 1 E1/ ...
Tópico(s): Organic Chemistry Cycloaddition Reactions
2007 - Elsevier BV | Inorganica Chimica Acta
Ana Filipa Mourão, María José Santos, José Melo‐Gomes, Fernando Martins, José António Costa, Filipa Oliveira‐Ramos, Iva Brito, Cátia Duarte, Ricardo Figueira, Guilherme Figueiredo, Carolina Furtado, Ana Isabel Lopes, Margarida Oliveira, Ana Maria Rodrigues, Manuel Salgado, Miguel Sousa, Jaime Branco, João Eurico Fonseca, Helena Canhão,
Our aims were to evaluate the correlation between Juvenile Arthritis Disease Activity Score 27-joint reduced count (JADAS27) with erythrocyte sedimentation rate (ESR) and JADAS27 with C-reactive protein (CRP) scores and to test the agreement of both scores on classifying each disease activity state. We also aimed at verifying the correlation of the 2 scores across juvenile idiopathic arthritis (JIA) categories and to check the correlation between JADAS27-ESR and clinical JADAS27 (JADAS27 without ESR). ...
Tópico(s): Inflammasome and immune disorders
2013 - Wiley | Arthritis Care & Research
José Ludovico, Rui Bernardes, Isabel Pires, João Figueira, Conceição Lobo, José Cunha‐Vaz,
To identify alterations of retinal capillary blood flow in the papillomacular area in preclinical diabetic retinopathy using the Heidelberg scanning laser Doppler flowmeter.Ten eyes from ten patients with type 2 diabetes and no lesions visible on fundus photography (level 10 of Wisconsin grading) and ten eyes from ten healthy subjects of similar age range were examined with the HRF. Intravisit reproducibility of retinal capillary blood flow measurements was assessed in normal subjects and in type ...
Tópico(s): Glaucoma and retinal disorders
2003 - Springer Science+Business Media | Graefe s Archive for Clinical and Experimental Ophthalmology
M. Helena Vasconcelos, Inês Marques, Ana Rita Santos, Pedro Melo, Isabel Pires, João Figueira, Jose F. Abreu, Maria Luz Cachulo, Rufino Silva,
To evaluate morphological and functional chorioretinal changes 5 years after standard photodynamic therapy (PDT) for chronic central serous chorioretinopathy (CSC).A retrospective, nonrandomized study, including patients with chronic CSC treated with standard PDT and followed for at least 60 months. All patients underwent a complete ophthalmological examination, and the location and number of treatments were registered. Five or more years after treatment, subfoveal and non-subfoveal treated areas ...
Tópico(s): Ophthalmology and Visual Impairment Studies
2013 - Springer Science+Business Media | Graefe s Archive for Clinical and Experimental Ophthalmology