60 results match your criteria: "Federal University of Amapa (UNIFAP)[Affiliation]"
Int J Parasitol Parasites Wildl
December 2024
Laboratory of Cellular Biology and Helminthology "Profa. Dra. Reinalda Marisa Lanfredi", Institute of Biological Sciences, Federal University of Pará (UFPA), Av. Augusto Correa 01, Guamá, Belém, Pará, 66075-110, Brazil.
is an arboreal anuran widely distributed in South America. However, there are no parasitological studies conducted on the species, resulting in a parasite fauna completely unknown. Thus, this study aims to characterize the parasitic community structure of in the municipality of Pedra Branca do Amapari, Amapá state, Amazon region, Brazil.
View Article and Find Full Text PDFEcol Evol
July 2024
Department of Botany, Institute of Biological Sciences University of Brasília Brasília Brazil.
Micron
September 2024
Laboratory of Synthesis of Nanomaterials and Nanoscopy (LSNN), Physics Department, Federal University of Amazonas - UFAM, Manaus, Amazonas 69067-005, Brazil.
Int J Parasitol Parasites Wildl
August 2024
Laboratory of Cellular Biology and Helminthology "Profa. Dra. Reinalda Marisa Lanfredi", Institute of Biological Sciences, Federal University of Pará (UFPA), Av. Augusto Correa 01, Guamá, Belem, Para, 66075-110, Brazil.
is the most diverse genus among proteocephalids, composed of species commonly found parasitizing snakes worldwide. However, the diversity of in the Neotropical region is still underestimated. This study describes n.
View Article and Find Full Text PDFMaterials (Basel)
February 2024
Amazonian Materials Group, Federal University of Amapá (UNIFAP), Macapá 68911-477, AP, Brazil.
Blast furnace dust waste (BFDW) proved efficient as a photocatalyst for the decolorization of methylene blue (MB) dye in water. Structural analysis unequivocally identified α-FeO as the predominant phase, constituting approximately 92%, with a porous surface showcasing unique 10-30 nm agglomerated nanoparticles. Chemical and thermal analyses indicated surface-bound water and carbonate molecules, with the main phase's thermal stability up to 900 °C.
View Article and Find Full Text PDFSci Rep
February 2024
Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran.
We investigated the multifaceted gas sensing properties of porous silicon thin films electrodeposited onto (100) oriented P-type silicon wafers substrates. Our investigation delves into morphological, optical properties, and sensing capabilities, aiming to optimize their use as efficient gas sensors. Morphological analysis revealed the development of unique surfaces with distinct characteristics compared to untreated sample, yielding substantially rougher yet flat surfaces, corroborated by Minkowski Functionals analysis.
View Article and Find Full Text PDFPolymers (Basel)
December 2023
National Centre for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania.
The new magnesium-doped hydroxyapatite in dextran matrix (10MgHApD) nanocomposites were synthesized using coprecipitation technique. A spherical morphology was observed by scanning electron microscopy (SEM). The X-ray diffraction (XRD) characterization results show hydroxyapatite hexagonal phase formation.
View Article and Find Full Text PDFMicroorganisms
December 2023
Laboratory of Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil.
(1) Background: Leishmaniasis refers to a group of anthropozoonotic diseases caused by Leishmania. The major chemotherapeutic agent used for its treatment is Glucantime, but the search continues for new compounds that are economically viable and act on the protozoan without causing damage to the host cell. As an alternative approach, this study used a combination of copaiba oil (CO) and kojic acid (KA) to determine their in vitro action on host cells, on the protozoan and its interaction with macrophages.
View Article and Find Full Text PDFPacing Clin Electrophysiol
January 2024
Introduction: Transvenous temporary pacemaker (TvTP) implantation is a critical procedure often performed under time limitations, playing a crucial role in patient survival. However, the amount of training provided for resident cardiologists is variable, due to the availability of patients. Thus, the use of simulators for this cardiologic procedure could be used as training tools.
View Article and Find Full Text PDFRSC Adv
November 2023
Institute of Exact and Natural Sciences, Federal University of Para - UFPA Belém Pará CEP 66075-110 Brazil
Saturated monocarboxylic fatty acids with long carbon chains are organic compounds widely used in several applied fields, such as energy production, thermal energy storage, antibactericidal, antimicrobial, among others. In this research, a new polymorphic phase of arachidic acid (AA) crystal was synthesized and its structural and vibrational properties were studied by single-crystal X-ray diffraction (XRD) and polarized Raman scattering. The new structure of AA was solved at two different temperature conditions (100 and 300 K).
View Article and Find Full Text PDFPhysiother Res Int
January 2024
Department of Biological Sciences and Health, Federal University of Amapá - UNIFAP, Macapá, AP, Brazil.
PLoS One
September 2023
Teacher of Physiotherapy Course, Post-Graduation of Health Science-PPGCS, Federal University of Amapá - UNIFAP, Macapá, AP, Brazil.
Rheumatoid arthritis (RA) is an inflammatory, systemic and chronic disease that mainly affects the joints. It is characterized mainly by pain, edema and joint stiffness, which can lead to significant loss of functional capacity and quality of life. Several physical therapy resources are used in the treatment of AR, such as low-level laser therapy (LLLT) and its analgesic and anti-inflammatory effects.
View Article and Find Full Text PDFMicroscopy (Oxf)
February 2024
Laboratory of Synthesis of Nanomaterials and Nanoscopy, Department of Physics, Federal University of Amazonas-UFAM, Av. General Rodrigo Octavio Jordão Ramos, 1200 - Coroado I, Manaus, Amazonas 69.067-005, Brazil.
We conducted a comprehensive analysis of the surface microtexture of kefir biofilms grown on Theobroma grandiflorum Shum (cupuaçu) juice using atomic force microscopy. Our goal was to investigate the unique monofractal and multifractal spatial patterns of these biofilms to complement the existing limited literature. The biofilms were prepared dispersing four different concentrations of kefir grains in cupuaçu juice.
View Article and Find Full Text PDFJ Pers Med
June 2023
Graduate Program in Health Sciences-PPGCS, Federal University of Amapá-UNIFAP, Macapá 68903-419, Brazil.
Parkinson's disease is a neurological disorder that affects both motor and non-motor functions, including depression, anxiety, and cognitive decline. Currently, it remains a challenge to distinguish the correlation between these aspects and their impact on one another. To try to clarify these reciprocal influences, in this study we have used specific radio electric asymmetric conveyer (REAC) technology neuromodulation treatments for behavioral mood disorders and adjustment disorders.
View Article and Find Full Text PDFJ Pers Med
May 2023
Department of Adaptive Neuro Psycho Physio Pathology and Neuro Psycho Physical Optimization, Rinaldi Fontani Institute, 50144 Florence, Italy.
Fibromyalgia syndrome (FS) is a disorder characterized by widespread musculoskeletal pain and psychopathological symptoms, often associated with central pain modulation failure and dysfunctional adaptive responses to environmental stress. The Radio Electric Asymmetric Conveyer (REAC) technology is a neuromodulation technology. The aim of this study was to evaluate the effects of some REAC treatments on psychomotor responses and quality of life in 37 patients with FS.
View Article and Find Full Text PDFCytokine
September 2023
Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24020-141 Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói, 24210-130 Rio de Janeiro, Brazil. Electronic address:
Background: The innate immune response plays an important role during malaria. Toll-like receptors (TLR) are capable of recognizing pathogen molecules. We aimed to evaluate five polymorphisms in TLR-4, TLR-6, and TLR-9 genes and their association with cytokine levels and clinical parameters in malaria from the Brazil-French Guiana border.
View Article and Find Full Text PDFCytokine
September 2023
Center for Microorganisms' Investigation, Department of Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói 24020-141, Rio de Janeiro, Brazil; Postgraduate Program in Applied Microbiology and Parasitology, Biomedical Institute, Fluminense Federal University, Niterói 24210-130, Rio de Janeiro, Brazil; Postgraduate Program in Parasite Biology, Center for Biological and Health Sciences, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil.
Sci Rep
April 2023
Quantum Technologies Research Center (QTRC), Science and Research Branch, Islamic Azad University, Tehran, Iran.
Due to the large number of industrial applications of transparent conductive oxides (TCOs), this study focuses on one of the most important metal oxides. The RF-magnetron sputtering method was used to fabricate NiO thin films on both quartz and silicon substrates at room temperature under flow of Argon and Oxygen. The sputtered samples were annealed in N atmosphere at 400, 500, and 600 °C for 2 hours.
View Article and Find Full Text PDFParasitology
March 2023
Laboratory of Cellular Biology and Helminthology 'Profa. Dra. Reinalda Marisa Lanfredi', Institute of Biological Sciences, Federal University of Pará (UFPA), Av. Augusto Correa 01, Guamá, Belém, Pará 66075-110, Brazil.
Wilkie, 1930 are gastrointestinal parasites commonly found in amphibians and reptiles, with 4 species reported from the Neotropical region. In the present study, a new species of , namely n. sp.
View Article and Find Full Text PDFBiosensors (Basel)
December 2022
Department of Chemistry, Institute of Exact Sciences, Federal University of Amazonas, Manaus 69067-005, AM, Brazil.
The COVID-19 pandemic has emphasized the importance and urgent need for rapid and accurate diagnostic tests for detecting and screening this infection. Our proposal was to develop a biosensor based on an ELISA immunoassay for monitoring antibodies against SARS-CoV-2 in human serum samples. The nucleocapsid protein (N protein) from SARS-CoV-2 was employed as a specific receptor for the detection of SARS-CoV-2 nucleocapsid immunoglobulin G.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
March 2023
Civil Engineering Department, Federal University of Amapá, Jardim Marco Zero, Rodovia Josmar Chaves Pinto, km 02. S/NAmapá 66.900000, Macapá, Brazil.
Ships that transport oil or derivatives on the Lower Amazon River waterway are at a considerably high risk of suffering spills, with severe environmental and socioeconomic consequences. The present study is aimed at modeling and simulating the oil dispersion and magnitude of these accidents in terms of the vulnerability of biological resources, considering two oil types most often transported by medium-sized tankers in the region (S500 and S10). The study method was as follows: (a) secondary data were collected from local species, and the coastal sensitivity index (CSI) was calculated, obtained from Brazil's Letters of Environmental Sensitivity to Oil Spill (Cartas de Sensibilidade Ambiental ao Derramamento de Óleo (SAO)); (b) ship traffic information was obtained from Brazil's Statistical Yearbook of Waterway (Anuário Estatístico Aquaviário (ANTAQ)); (c) modeling and numerical simulation of oil spills in water were performed, in order to investigate dispersion scenarios (SisBaHia); (d) three numerical scenarios of oil plume dispersion (in May and November) were integrated to assess species vulnerability in three zones of environmental interest (I, II, and III).
View Article and Find Full Text PDFSensors (Basel)
December 2022
Polytechnic School (EPUSP), University of São Paulo, São Paulo 05508-010, Brazil.
Robust, fault tolerant, and available systems are fundamental for the adoption of Internet of Things (IoT) in critical domains, such as finance, health, and safety. The IoT infrastructure is often used to collect a large amount of data to meet the business demands of Smart Cities, Industry 4.0, and Smart Home, but there is a opportunity to use these data to intrinsically monitor an IoT system in an autonomous way.
View Article and Find Full Text PDFBiomolecules
November 2022
Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, Brazil.
Considerable efforts have been spent on the development of biodefensives based on the encapsulation of essential oils for controlling of urban pests from their larval stage, especially as anopheline controlling agents. The larval source management of is important for malaria prevention. For this reason, this research proposes larvicidal biodefensives based on polymeric particles loaded with essential oil, considering the influence of temperature (35 °C) and preservatives on the formulation stability.
View Article and Find Full Text PDFPathogens
August 2022
Laboratory of Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém 66075-110, PA, Brazil.
Chromoblastomycosis (CBM) is a chronic human subcutaneous mycosis caused by various aetiologic agents. CBM does not have an established treatment but may be managed using antifungal agents, surgical removal of the lesions, or cryotherapy. Kojic acid (KA), a known tyrosinase inhibitor with a variety of biological actions, including fungistatic action against the fungus Cryptococcus neoformans, mediated by inhibiting melanin production, seems to be an alternative to improve the treatment of CBM.
View Article and Find Full Text PDFNanomaterials (Basel)
August 2022
Laboratory of Corrosion and Nanotechnology (LCNT), Federal University of Sergipe, São Cristovão 49100-000, SE, Brazil.
ZnO nanocrystals with three different morphologies have been synthesized via a simple sol-gel-based method using (bitter Amapá) and (sweet Amapá) latex as chelating agents. X-ray diffraction (XRD) and electron diffraction patterns (SAED) patterns showed the ZnO nanocrystals were a pure hexagonal wurtzite phase of ZnO. XRD-based spherical harmonics predictions and HRTEM images depicted that the nanocrystallites constitute pitanga-like (~15.
View Article and Find Full Text PDF