Cicero Pereira

Cicero Pereira

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3,530
Publications
444,504
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72,817
Citations
Citations since 2017
1240 Research Items
48217 Citations
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201720182019202020212022202302,0004,0006,0008,00010,000

Publications

Publications (3,530)
Article
Geological remote sensing has been an invaluable means to obtain data to perform geological mapping objectively and with high accuracy. However, there is a significant gap in geological cartography information at 1:50 000 scale throughout the territory in mainland Portugal. The lack of geological mapping is reflected in the geological resources and...
Article
Five ternary copper(II) complexes, [Cu2(phen)2(L1)(ClO4)2] (1), [Cu2(phen)2(L1)(DMSO)2](PF6)2 (2), [Cu2(bpy)2(L1)(ClO4)2(H2O)2] (3), [Cu2(dmp)2(L1)(ClO4)2(H2O)2] (4), and [Cu(phen)(L2)]2(ClO4)2 (5), in which phen = 1,10-phenanthroline, bpy = 2,2'-bipyridine, dmp = 2,9-dimethyl-1,10-phenanthroline, H2L1 = 1,4-dihydroxyanthracene-9,10-dione and HL2 =...
Article
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In the last decades, researchers have shown the potential of using Electrocardiogram (ECG) as a biometric trait due to its uniqueness and hidden nature. However, despite the great number of approaches found in the literature, no agreement exists on the most appropriate methodology. This paper presents a systematic review of data acquisition methods...
Article
Chagas disease is caused by the parasite Trypanosoma cruzi (T. cruzi) and, among all the chronic manifestations of the disease, Chronic Chagas Cardiomyopathy (CCC) is the most severe outcome. Despite high burden and public health importance in Latin America, there is a gap in understanding the molecular mechanisms that results in CCC development. P...
Article
One limitation to transradial access (TRA) is the occurrence of spasms (RAS), for which the use of prophylactic medications is recommended. Improvement in TRA material combined with the increase in operators' expertise, might mitigate this benefit. We assess the effect of preventive nitroglycerin on RAS during TRA, evaluating the role of the operat...
Preprint
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Light scattering, whether caused by desired or spurious elements, is considered one of the main phenomena that present great challenges for the nonlinear (NL) optical characterization of turbid media. The most relevant disturbing factor is the random deformation suffered by the spatial intensity distribution of the laser beam due to multiple scatte...
Article
DsrC is a key protein in dissimilatory sulfur metabolism, where it works as co‐substrate of the dissimilatory sulfite reductase DsrAB. DsrC has two conserved cysteines in a C‐terminal arm that are converted to a trisulfide upon reduction of sulfite. In sulfate reducing bacteria, DsrC is essential and previous works suggested additional functions be...
Article
Cancer cells have heterogeneous fitness, and this heterogeneity stems from genetic and epigenetic sources. Here, we sought to assess the contribution of asymmetric mitosis (AM) and time on the variability of fitness in sister cells. Around one quarter of sisters had differences in fitness, assessed as the intermitotic time (IMT), from 330 to 510 mi...
Chapter
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The following article presents the results of an experiment carried out in the electromagnetic compatibility laboratory of SENAI CIMATEC history. Computer simulations of a twinaxial cable were designed with the electric field measurements. The CST Microwave Studio software was used for computational modeling of a twinaxial cable. The result of the...
Preprint
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In spite of the advent of extremely large telescopes in the UV/optical/NIR range, the current generation of 8-10m facilities is likely to remain competitive at ground-UV wavelengths for the foreseeable future. The Cassegrain U-Band Efficient Spectrograph (CUBES) has been designed to provide high-efficiency (>40%) observations in the near UV (305-40...
Preprint
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Subthalamic nucleus (STN) beta-triggered adaptive deep brain stimulation (ADBS) has been shown to provide clinical improvement comparable to conventional continuous DBS (CDBS) in people with Parkinson's disease (PD) with less energy delivered to the brain and less stimulation induced side-effects. However, several questions remain unanswered. First...
Article
The noncubane [4Fe-4S] cluster identified in the active site of heterodisulfide reductase (HdrB) displays a unique geometry among Fe-S cofactors found in metalloproteins. Here we employ resonance Raman (RR) spectroscopy and density functional theory (DFT) calculations to probe structural, electronic, and vibrational properties of the noncubane clus...
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Bipolar Disorder (BD) has recently been related to a process of accelerated aging, with shortened leukocyte telomere length (LTL) in this population. It has also been observed that the suicide rate in BD patients is higher than in the general population, and more recently the telomere length variation has been described as shorter in suicide comple...
Chapter
This chapter presents a simulation model of the internet access services market. The model is based on neo-Schumpeterian evolutionary theory, as well as on the contemporary institutional theory. One key driver of the internet sector has been the significant technological opportunities. However, competition in the internet access services market has...
Article
A new cis-dihalo copper(II) complex, [CuII(HLbz)(Cl)2].CH3CN (1), where HLbz = (S)-2-(((2-(2-(pyridin-2-yl)-2H-benzo[e][1,3]oxazin-3(4H)-yl)ethyl)amino)methyl)phenol), was isolated by reacting copper(II) chloride dihydrate and the H2L ligand (H2L = 2,2′-((2-(pyridin-2-yl)imidazolidine-1,3-diyl)bis(methylene))diphenol) in a MeOH/CH3CN (1:3 v/v) mixt...
Article
Objectives: To compare FLT3 inhibitors (FLT3i) with salvage therapy or other FLT3i for relapsed or refractory acute myeloid leukemia (AML) patients. Methods: This is a systematic review with direct meta-analyses. Structured searches were conducted on Medline (via PubMed), Lilacs/Ibecs (via BVS), and Embase. Additionally, a complementary search was...
Article
A Digital Micromirror Device (DMD) is a technology developed by Texas Instruments, that consists in a two-dimensional array of micromirrors, which can be individually tilted between two positions. It has been used as a digital video and image processing solution, commonly found in Digital Light Processing (DLP) video projectors. Over the years, DMD...
Article
Background and aims: Familial hypercholesterolemia (FH) variants are associated with higher atherosclerotic cardiovascular disease risk (ASCVD) even when compared with other forms of severe hypercholesterolemia, especially in young people. Lipid lowering therapies (LLT) may change hypercholesterolemia natural history. This study aimed at evaluatin...
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The aim of this study was to assess in vitro sperm characteristics and pregnancies/AI (P/AI) of conventional and sex-sorted semen at timed-AI of suckled, multiparous Nelore cows. All cows (n=348) were submitted to a traditional estradiol/progesterone(P4)-based protocol. At 48h after P4-device removal, the estrous behavior was recorded, and AI was p...
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Grasslands and ecosystem services are under threat due to common practices adopted by modern livestock farming systems. Design theory has been an alternative to promote changes and develop more sustainable strategies that allow pastoral livestock production systems to evolve continually within grasslands by enhancing their health and enabling the c...
Article
Introduction: There are scarce data in the literature analyzing, in patients with acute myocardial infarction (AMI), the impact of right (RBBB) and left bundle-branch block (LBBB) on mortality, especially in the long-run after hospital discharge. Hypothesis: RBBB and LBBB is associated with in-hospital and long-term mortality in patients with AMI....
Poster
Aim: The unique properties of plant-derived proteins demand new strategies for their incorporation into foods. One of the strategies is the ultrasonication process (US), which modifies proteins’ structural and physiological properties and thus extends its application. In this work, we study the influence of the US on protein structural features and...
Poster
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Homozygous familial hypercholesterolemia (HoFH) is a rare genetic disorder characterized by extremely elevated low-density lipoproteincholesterol (LDL-c) and very high risk of premature atheroscleroticcardiovascular (ASCVD) and aortic/supraortic valve heart diseases(VHD).
Article
Using Brownian dynamics simulations we investigate the melting processes of a square crystalline lattice of colloidal particles interacting via an isotropic potential, which comprises both a hard-core repulsion and an additional softened square-well potential. For temperatures slightly lower than the transition one, we found a proliferation of smal...
Article
Building on the labour-augmented K+S model framework, we analyse the Italian North-South divide by means of an agent-based model (ABM) endogenously reproducing the divergence between two artificial macro-regions. The latter are characterized by identical initial conditions in terms of productive and innovation structures, but different labour marke...
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The antimicrobial peptide LL-37 and D-amino acids (D-AAs) have been proposed as antibiofilm agents. Therefore, this study aimed to test the antimicrobial effect of antibiofilm agents associated with antibiotics used in regenerative endodontic procedures (the triple antibiotic paste—TAP: ciprofloxacin + metronidazole + minocycline). An endodontic-li...
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Background: Chronic Chagas Cardiomyopathy (CCC) usually develops between 10 and 20 years after the first parasitic infection and is one of the leading causes of end-stage heart failure in Latin America. Despite the great inter-individual variability in CCC susceptibility (only 30% of infected individuals ever present CCC), there are no known predi...
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Background Cerebral small vessel disease (SVD) is common in older people and causes lacunar stroke and vascular cognitive impairment. Risk factors include old age, hypertension and variants in the genes COL4A1/COL4A2 encoding collagen alpha-1(IV) and alpha-2(IV), here termed collagen-IV, which are core components of the basement membrane. We tested...
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economia
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administracao
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administracao
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apresentaçao
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Com o aumento populacional e a crescente demanda por serviços públicos, cada vez mais sofisticados, associados à escassez dos recursos, os governos têm que ser eficientes na gestão das políticas públicas. A investigação pretendeu avaliar a importância da escolha dos indicadores: sociais, econômicos e ambientais, para o sucesso na gestão das polític...
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eco
Conference Paper
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Introdução O debate sobre a inserção do Estado na economia sucinta algumas questões, tais como: a intervenção do governo na economia é recente? Por que o governo existe? Quais são os objetivos que a intervenção estatal procura revolver? Por que os governos agem ativamente na economia? Por que o mercado não oferece todos os bens e serviços necessári...
Article
Rice bran is rich in oil and constituted by a lignocellulosic structure, which is a potential raw material for its processing into several products. Therefore, the oil yield and composition of oil obtained from supercritical CO2 extraction were investigated to select a condition for using defatted rice bran for processing by subcritical water hydro...
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The aim of this study was to analyze oral health actions in four municipalities in Brazil during the COVID-19 pandemic according to a theoretical framework model on oral healthcare management. It was a qualitative study carried out in two stages. A theoretical-empirical model on the significance of oral healthcare management was developed, followin...
Article
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Chagas disease is a parasitic disease from South America, affecting around 7 million people worldwide. Decades after the infection, 30% of people develop chronic forms, including Chronic Chagas Cardiomyopathy (CCC), for which no treatment exists. Two stages characterized this form: the moderate form, characterized by a heart ejection fraction (EF)...
Conference Paper
Este trabalho aplica três diferentes estratégias para sintonizar os parâmetros Power System Stabilizer (PSS) em sistemas elétricos multimáquina. A diferença entre as três estratégias fundamenta-se no número de variáveis de decisão utilizadas no processo de otimização, enquanto que a função objetivo almeja maximizar o amortecimento mínimo do sistema...
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Grasslands are heterogeneous landscapes composed of a diversity of herbaceous and shrub vegetation that varies not only taxonomically, but biochemically in terms of primary and secondary compounds. Plant Secondary Compounds (PSC) have specific nutritional, medicinal, and prophylactic properties, to which benefits depend upon dosage, type, arrangeme...
Preprint
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The ExoClock project has been created with the aim of increasing the efficiency of the Ariel mission. It will achieve this by continuously monitoring and updating the ephemerides of Ariel candidates over an extended period, in order to produce a consistent catalogue of reliable and precise ephemerides. This work presents a homogenous catalogue of u...
Article
Sickle cell disease (SCD) is the most common type of hereditary anaemia and genetic disorder worldwide. Cerebrovascular disease is one of its most devastating complications, with consequent increased morbidity and mortality. Current guidelines suggest that children and adults with SCD who develop acute ischaemic stroke should be transfused without...
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Background: The association between ideal cardiovascular health (ICVH) status and atrial fibrillation or flutter (AFF) diagnosis has been less studied compared to other cardiovascular diseases. Objective: To analyze the association between AFF diagnosis and ICVH metrics and scores in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)...
Conference Paper
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Sirius is a Synchrotron Light Source based on a 3 GeV electron storage ring with 518 meters circumference and 250 pm.rad emittance. The facility is built and operated by the Brazilian Synchrotron Light Laboratory (LNLS), located in the CNPEM campus, in Campinas. A beam stability task force was recently created to identify and mitigate the orbit dis...
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We study the effects of curvature on an electron in a two-dimensional localized annular region in the presence of external magnetic fields. The approach follows the thin-layer quantization procedure. We verify that the most significant contribution of the mean curvature occurs in the state with \(m=0\), which tends to decrease the energies in null...
Poster
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INTRODUCTION: Specific and practical approaches to estimate fat mass (FM) in athletes are warranted, especially regarding team sports athletes, i.e. futsal players. Assessing skinfold (SKF) thickness and body girth is a simple field technique to evaluate FM, especially when performed by an ISAK (The International Society for the Advancement of Kina...
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Glaucoma is a group of eye conditions that damage the optic nerve, the health of which is vital for vision. The key risk factor for the development and progression of this disease is increased intraocular pressure (IOP). Implantable glaucoma drainage devices have been developed to divert aqueous humor from the glaucomatous eye as a means of reducin...
Article
In order to improve the electrical efficiency of lead-acid batteries under partial state of charge, three additives for the negative active mass were synthesized by high-energy ball milling: (1) exfoliated graphite doped with nitrogen groups (GN) from urea and novel (2) ZnO/GN and (3) PbO/GN. The main variables of grinding medium, ball sizes and ti...
Article
The heritability of arterial hypertension ranges from 25 to 68%, but the underlying genetic determinants remain elusive. Thousands of variants with small effects on systolic blood pressure (SBP) from European Ancestry Genome-Wide Association Studies have been used to derive genetic risk scores, whose predictive power in samples from diverse ancestr...
Chapter
Com o objetivo de proporcionar conteúdo gratuito de qualidade para a indústria de pescado e para a área de food safety, o professor André Luiz Medeiros de Souza, em parceria com o Portal e-food, disponibilizou uma coletânea com 37 artigos sobre o tema. Em cada texto, é possível encontrar uma análise da segurança de alimentos na cadeia produtiva do...
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This work describes the synthesis, characterization and in vitro anticancer activity of two platinum(II) complexes of the type [Pt(L1)2(1,10-phen)] 1 and [Pt(L2)2(1,10-phen)] 2, where L1 = 5-heptyl-1,3,4-oxadiazole-2-(3H)-thione, L2 = 5-nonyl-1,3,4-oxadiazole-2-(3H)-thione and 1,10-phen = 1,10-phenanthroline. As to the structure of these complexes,...