Publications by authors named "Medeiros J"

Assessing cognitive load using pupillography frequency features presents a persistent challenge due to the lack of consensus on optimal frequency limits. This study aims to address this challenge by exploring pupillography frequency bands and seeking clarity in defining the most effective ranges for cognitive load assessment. From a controlled experiment involving 21 programmers performing software bug inspection, our study pinpoints the optimal low-frequency (0.

View Article and Find Full Text PDF

The leaf economics spectrum (LES) characterizes a tradeoff between building a leaf for durability versus for energy capture and gas exchange, with allocation to leaf dry mass per projected surface area (LMA) being a key trait underlying this tradeoff. However, regardless of the biomass supporting the leaf, high rates of gas exchange are typically accomplished by small, densely packed stomata on the leaf surface, which is enabled by smaller genome sizes. Here, we investigate how variation in genome size-cell size allometry interacts with variation in biomass allocation (i.

View Article and Find Full Text PDF

Large-scale surveillance and informed vector control approaches are urgently needed to ensure that national malaria programs remain effective in reducing transmission and, ultimately, achieving malaria elimination targets. In South America, Anopheles darlingi is the primary malaria vector and is responsible for the majority of Plasmodium species transmission. However, little is known about the molecular markers associated with insecticide resistance in this species.

View Article and Find Full Text PDF

Weissella, a genus of lactic acid bacteria, has diverse beneficial attributes including probiotic activity and biotechnological applications. Therefore, the investigation of the Weissella genus has garnered growing interest. In this study, we sequenced the complete genome of Weissella paramesenteroides UFTM 2.

View Article and Find Full Text PDF

The Oropouche Virus (OROV) has Culicoides paraensis as its main vector in the urban cycle. Diagnoses of acute febrile cases and entomological collections were performed between January and April 2024 in the urban setting of Porto Velho, a city located in the western Brazilian Amazon. A total of 904 human samples were evaluated using RT-qPCR, of which 328 were positive for OROV.

View Article and Find Full Text PDF

Treatment of patients with myocardial ischemic diseases crucially involves cardiac reperfusion (CR). However, oxidative stress and tissue lesions caused by CR may also lead to lethal complications, such as arrythmias and vasoplegic syndrome (VS). Although methylene blue (MB) has long been used to treat VS due to cardiac ischemia and reperfusion (CIR) and/or surgery because of its vascular effects, MB's effects on the heart are unclear.

View Article and Find Full Text PDF

Malaria control and elimination efforts would benefit from the identification and validation of new malaria chemotherapeutics. Recently, a transgenic line was used to perform a series of high-throughput in vitro screens for new antimalarials acting against the parasite sexual stages. The screens identified pyrimidine azepine chemotypes with potent activity.

View Article and Find Full Text PDF
Article Synopsis
  • Elasmobranch anatomy has been studied for nearly 200 years, but certain aspects like the dorsal fin muscles are still not well understood.
  • This study focuses on the musculature of inclinatores dorsales in galeomorph sharks, revealing they have two components: profundus and superficialis, and showcasing greater anatomical variation than previously thought.
  • The findings challenge existing interpretations related to the hypnosqualean hypothesis and emphasize the need to reassess previous morphological data in the context of elasmobranch interrelationships.
View Article and Find Full Text PDF

Objectives: To evaluate the short and long-term effects of anodal tDCS (a-tDCS) targeting the left temporoparietal area (LTA) on tinnitus severity, annoyance, and loudness.

Methods: This is a double-blind, randomized, sham-controlled, and parallel-group clinical trial. A total of 42 individuals with tinnitus were randomized to a-tDCS (n = 24) or sham tDCS (n = 18).

View Article and Find Full Text PDF

Background: This study aimed to evaluate the effect of surgically assisted rapid maxillary expansion (SARME) with pterygopalatine disjunction (PD) on the nasomaxillary complex structures.

Material And Methods: A systematic two-phase review, recorded in the PROSPERO database, was conducted. Search strategies were performed using PubMed, Scopus, Web of Science, COCHRANE, LILACS and DOSS databases, including gray literature (Open Grey, Google Scholar, and ProQuest).

View Article and Find Full Text PDF

This study aimed to assess the diversity patterns of sand fly fauna across different strata and detect Leishmania DNA in these insects in the Mapinguari National Park in Rondônia and Amazonas states, Northern Brazil. Sand flies were collected with "HP" light traps in the canopy (15 m) and at ground level (1 m) on two trails, during August and November 2021 and March and August 2022. Polymerase chain reaction and DNA sequencing were used to identify Leishmania species.

View Article and Find Full Text PDF

Maize is a crop of global economic importance and is widely cultivated throughout the Brazilian territory. The use of biostimulants can increase yield and improve crop yield. Unmanned aerial vehicles can be employed in arable areas, allowing their use in an economically way.

View Article and Find Full Text PDF

Sapajus nigritus (Primates: Cebidae) is endemic of the Atlantic Forest, occurring from the Southeastern and Southern regions of Brazil to Northeastern Argentina. This species plays a role in two ecosystem services: seed dispersal through endozoochory and insect population control in agricultural plantations and forest environments. Fruits and invertebrates represent approximately 90% of their diet, and there is a large number of insects in the diet of S.

View Article and Find Full Text PDF

Purpose: Shock, cardiovascular problems, and respiratory failure constitute the main causes of death in patients cared in medical emergency rooms. Patients commonly require orotracheal intubation (OTI), a fact that has been intensified by diseases that generate important and fatal hemodynamic and respiratory problems in the affected patient.

Methods: Although etomidate (ETO) is a highly used anesthetic for OTI, its use remains controversial in several scenarios.

View Article and Find Full Text PDF

Sand flies play a crucial role as vectors of bacteria, viruses, and protists, with Leishmania being the most notable among them, transmitted to vertebrate hosts during blood feeding. Understanding the feeding behaviours of sand flies is imperative for gaining insights into their eco-epidemiological roles in the transmission of these infectious agents. This systematic review aimed to answer the question 'What are the blood-feeding sources identified in Brazilian sand flies?' to provide an analysis of their blood-feeding habits.

View Article and Find Full Text PDF

Objective: To evaluate the effect of the basilar invagination (BI) type B on cervical spine.

Methods: The research protocol used head magnetic resonance imaging (MRI) exams from 41 participants with BI type B and 158 controls. The criterion for BI was the distance of the odontoid apex to Chamberlain's line (DOCL) equal to or greater than 7 mm.

View Article and Find Full Text PDF

Entomological investigations were conducted for the first time in urban forest remnants of Porto Velho, state of Rondônia, Brazil, to explore the transmission dynamics of Leishmania. Sand fly collections were carried out at ten sites, encompassing both canopy and ground strata, from October to December 2021. A total of 1,671 sand flies were collected, representing 42 species within 12 genera.

View Article and Find Full Text PDF

Roux-en-Y gastric bypass (RYGB) involves creating a small stomach pouch, bypassing part of the small intestine, and rerouting the digestive tract. These alterations can potentially change the drug exposure and response. Our primary aim was to assess the impact of RYGB on the pharmacokinetics of simvastatin lactone (SV) and its active metabolite, simvastatin hydroxy acid (SVA).

View Article and Find Full Text PDF

Transmission-blocking vaccines interrupting malaria transmission within mosquitoes represent an ideal public health tool to eliminate malaria at the population level. Plasmodium falciparum and P. vivax account for more than 90% of the global malaria burden, co-endemic in many regions of the world.

View Article and Find Full Text PDF

Aims: To investigate the SARS-CoV-2 Spike protein (Spk)-induced inflammatory response and its downmodulation by diminazene aceturate (DIZE).

Materials And Methods: Through inducing Spk inflammation in murine models, leukocyte migration to the peritoneum, levels of myeloperoxidase (MPO), malondialdehyde (MDA), rolling and adhesion of mesenteric leukocytes, and vascular permeability were investigated. Extracellular DNA traps (DETs) induced by Spk and the production of IL-6 and TNF-α were analyzed using human neutrophils, monocytes, and macrophages.

View Article and Find Full Text PDF

Background/aim: Acute myeloid leukemia (AML) is a myeloproliferative neoplasm marked by abnormal clonal expansion of hematopoietic progenitor cells, displaying karyotypic aberrations and genetic mutations as prognostic indicators. The World Health Organization (WHO) and the European LeukemiaNet guidelines categorize BCR::ABL1 p190+ AML as high risk. This study explored the identification of the increased incidence of BCR::ABL1 p190+ in our AML population.

View Article and Find Full Text PDF

Introduction: Lung cancer is the most commonly diagnosed and the main cause of cancer death, usually related to cigarette smoking. Furthermore, the microbiota of people exposed to cigarette smoke can be modified, making it difficult to eliminate opportunistic microorganisms. The leaves of are a by-product of fruit production and, to date, there have been no studies addressing the antiproliferative, anti-inflammatory, and antimicrobial activities.

View Article and Find Full Text PDF