120 results match your criteria: "Federal University of Amapá - 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 PDFLancet Child Adolesc Health
November 2024
Global Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia; WorldWide Antimalarial Resistance Network, Asia-Pacific Regional Centre, Melbourne, VIC, Australia; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
PLoS One
July 2024
Programa de Pós-Graduação em Biodiversidade Tropical, Universidade Federal do Amapá (UNIFAP), Macapá, Brazil.
Comparable data is essential to understand biodiversity patterns. While assemblage or community inventorying requires comprehensive sampling, monitoring focuses on as few components as possible to detect changes. Quantifying species, their evolutionary history, and the way they interact requires studying changes in taxonomic (TD), phylogenetic (PD) and functional diversity (FD).
View Article and Find Full Text PDFEcol Evol
July 2024
Department of Botany, Institute of Biological Sciences University of Brasília Brasília Brazil.
Braz J Biol
June 2024
Universidade Estadual Paulista - UNESP, Instituto de Biociências, Departamento de Biodiversidade e Bioestatística, Setor de Parasitologia, Botucatu, SP, Brasil.
Hepatozoon spp. are the most common haemoparasites reported from reptiles around the world, however, only six species have been described infecting crocodilians. In Brazil, Hepatozoon caimani Carini, 1909 is currently the only recognized species from the caiman hosts.
View Article and Find Full Text PDFMicron
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 PDFEcology
May 2024
Núcleo de Ecologia de Estradas e Ferrovias (NERF), Departamento de Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.
Camera traps became the main observational method of a myriad of species over large areas. Data sets from camera traps can be used to describe the patterns and monitor the occupancy, abundance, and richness of wildlife, essential information for conservation in times of rapid climate and land-cover changes. Habitat loss and poaching are responsible for historical population losses of mammals in the Atlantic Forest biodiversity hotspot, especially for medium to large-sized species.
View Article and Find Full Text PDFToxics
March 2024
Postgraduate Program in Environmental Sciences (PPGCA/UNIFAP), Federal University of Amapá, Rod. JK, km 02, Macapá 68903-419, Brazil.
Mercury contamination in the Amazon arising from both natural sources and intensive mining activities in the region is a significant public health concern. This metal is used to separate Au from sediments. Accordingly, this study aimed to assess the impact of mining on mercury contamination in the animal and human populations of the Amazon.
View Article and Find Full Text PDFBraz J Biol
March 2024
Universidade Federal do Amapá - UNIFAP, Programa de Pós-graduação em Ciências Farmacêuticas, Macapá, AP, Brasil.
Citrus bergamia is a citric species known as bergamot. The species is widely used due to its derivatives, such as juices, extracts, and essential oil. Specifically, the bergamot essential oil (BEO) is of great interest, with a chemical composition rich in terpenes and esters.
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 PDFJ Phys Chem A
December 2023
Instituto de Física, Universidade de São Paulo, Rua do Matão 1371, São Paulo, São Paulo 05588-090, Brazil.
This work discusses the electron structure, antioxidative properties, and solvent contribution of two new antioxidant molecules discovered, named and , extracted from a medicinal plant called , found in the Amazon rain-forest. To gain a better understanding, a study using density functional theory coupled with the polarizable-continuum model and the standard 6-311++G(d,p) basis set was conducted. The results indicate that has a higher antioxidant potential than , confirming the experimental expectations.
View Article and Find Full Text PDFPlants (Basel)
November 2023
Research Network Natural Products against Neglected Diseases (ResNetNPND), 48149 Münster, Germany.
Mosquitoes are one of the main vectors of many important diseases and their degree of resistance to chemical insecticides has increased. Nowadays, it has become crucial to identify novel plant larvicides with an eco-friendly impact. The components of essential oils from Jacq.
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.
Background And Purpose: Physiotherapists worldwide are encouraged to integrate evidence-based practice (EBP) to provide safer and effective services. However, for professionals to consolidate this practice, the contact with EBP must begin at the university. In this study, we aimed to map and analyze the distribution of EBP courses and their characteristics in undergraduate physiotherapy programs in Brazil.
View Article and Find Full Text PDFMalar J
October 2023
Global Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, NT, Australia.
Background: Imperfect adherence is a major barrier to effective primaquine radical cure of Plasmodium vivax. This study investigated the effect of reduced adherence on the risk of P. vivax recurrence.
View Article and Find Full Text PDFMicron
January 2024
National Institute of Materials Physics, 405A Atomiștilor Street, 077125 Măgurele, Romania. Electronic address:
In the present study, we report the development and characterization of composite layers (by spin coating) based on magnesium-doped hydroxyapatite in a chitosan matrix, containing human osteosarcoma MG63 cells anchored. Studies regarding the biocompatibility of the composite layers were performed with the aid of a MTT (3-4,5-Dimethylthiazol 2,5-diphenyltetrazolium bromide) assay. The data determined that the composite layers did not inhibit the growth and adhesion of MG63 cells to their surfaces exhibiting good biocompatibility properties.
View Article and Find Full Text PDFScience
October 2023
Division of Earth Observation and Geoinformatics, General Coordination of Earth Sciences, National Institute for Space Research (INPE), São José dos Campos, SP, Brazil.
Indigenous societies are known to have occupied the Amazon basin for more than 12,000 years, but the scale of their influence on Amazonian forests remains uncertain. We report the discovery, using LIDAR (light detection and ranging) information from across the basin, of 24 previously undetected pre-Columbian earthworks beneath the forest canopy. Modeled distribution and abundance of large-scale archaeological sites across Amazonia suggest that between 10,272 and 23,648 sites remain to be discovered and that most will be found in the southwest.
View Article and Find Full Text PDFPLoS 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 PDFEcol Evol
August 2023
Programa de Pós-Graduação em Biodiversidade e Meio Ambiente Universidade Federal da Grande Dourados (UFGD) Dourados Brazil.
Mist nets are one of the most widely used techniques in the study of birds and bats worldwide. However, a number of risks are involved, including opportunistic predation. Given this potential cost, here we: (1) review the global literature to understand the factors that might contribute to predation risk for birds and bats captured in mist nets; (2) review existing guidelines for best practice use of mist nets; and (3) based on our reviews, recommend new guidelines for the use of mist nets to minimize the risk of opportunistic predation.
View Article and Find Full Text PDF