S. Ravi P. Silva
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View article: Effectiveness of zolpidem vs trazodone for sleep disorders in older adults: a systematic review
Effectiveness of zolpidem vs trazodone for sleep disorders in older adults: a systematic review Open
Insomnia or sleep initiation and maintenance disorders is prevalent among the elderly and frequently associated with anxiety and depression. This systematic review aimed to compare the efficacy and safety of zolpidem and trazodone in the r…
View article: Van-der-Waals-forces-modulated graphene-P-phenyl-graphene carbon allotropes
Van-der-Waals-forces-modulated graphene-P-phenyl-graphene carbon allotropes Open
View article: Uso de alinhadores na preparação ortodôntica para cirurgia ortognática: uma revisão de literatura
Uso de alinhadores na preparação ortodôntica para cirurgia ortognática: uma revisão de literatura Open
O tratamento ortodôntico prévio a cirurgia ortognática é essencial para o resultado satisfatório, nos pacientes com planejamento orto-cirúrgico, portanto o profissional precisa estar cada vez mais bem capacitado. A crescente busca pelo uso…
View article: Riscos e complicações associados a abdominoplastia pós cirurgia bariátrica: uma revisão integrativa
Riscos e complicações associados a abdominoplastia pós cirurgia bariátrica: uma revisão integrativa Open
A cirurgia plástica pós-bariátrica tem se tornado cada vez mais relevante diante do aumento do número de pacientes submetidos à cirurgia bariátrica e do impacto do excesso de pele sobre a qualidade de vida. Entretanto, as complicações deco…
View article: Uma introdução à geometria espacial
Uma introdução à geometria espacial Open
Caro leitor, É com muito prazer que apresentamos neste texto uma introdução à geometria espacial. Aqui, mergulharemos em um universo tridimensional repleto de conceitos e formas geométricas interessantes. A geometria espacial é uma discipl…
View article: <scp>2D</scp> Material Decorated <scp>ZnO</scp> for Screen Printable Wearable Textile‐Based Piezoelectric Nanogenerator
<span>2D</span> Material Decorated <span>ZnO</span> for Screen Printable Wearable Textile‐Based Piezoelectric Nanogenerator Open
Future wearable electronics require sustainable power sources, and nanogenerators offer promising solutions to convert ambient mechanical energy to electricity while ensuring flexibility, durability, and practical deployment. This work dem…
View article: OC17 - Retrospective analysis of thyroid cancer cases after radiotherapy in paediatric brain tumour survivors
OC17 - Retrospective analysis of thyroid cancer cases after radiotherapy in paediatric brain tumour survivors Open
Background/Introduction Cranial and craniospinal radiotherapy (RT) are common treatments for paediatric brain tumours but are associated with increased long-term risk of secondary cancers, such as thyroid cancer. This risk correlates with …
View article: Solar Energy in 2025: Global Deployment, Cost Trends, and the Role of Energy Storage in Enabling a Resilient Smart Energy Infrastructure
Solar Energy in 2025: Global Deployment, Cost Trends, and the Role of Energy Storage in Enabling a Resilient Smart Energy Infrastructure Open
View article: Reconfigurable In–S Coordination in SPAN Cathodes: Unlocking High Sulfur Utilization and Fast Kinetics for Practical Li‒S Batteries
Reconfigurable In–S Coordination in SPAN Cathodes: Unlocking High Sulfur Utilization and Fast Kinetics for Practical Li‒S Batteries Open
Sulfurized polyacrylonitrile (SPAN) has emerged as a promising cathode material for high‐energy‐density lithium‒sulfur (Li‒S) batteries due to its ability to confine sulfur and suppress polysulfide shuttling. However, conventional SPAN suf…
View article: Condutas do enfermeiro no cuidado da ferida neoplásica maligna: revisão integrative
Condutas do enfermeiro no cuidado da ferida neoplásica maligna: revisão integrative Open
O câncer é um dos maiores problemas de saúde pública do mundo, o diagnóstico tardio da doença impacta na chance de remissão e sobrevida, e ocasiona maior chance de desenvolvimento da Ferida Neoplásica Maligna. O objetivo desse estudo é map…
View article: EVALUATING THE EFFECTIVENESS OF AN INTERNET-BASED TOOL FOR EMOTIONAL ASSESSMENT OF STUDENTS AT A PUBLIC UNIVERSITY IN BRAZIL
EVALUATING THE EFFECTIVENESS OF AN INTERNET-BASED TOOL FOR EMOTIONAL ASSESSMENT OF STUDENTS AT A PUBLIC UNIVERSITY IN BRAZIL Open
University students have a higher prevalence of illnesses that affect their mental health. This leads to a higher risk of dropping out, poor academic performance, drug abuse, difficulties in finding a job after graduation, and suicidal tho…
View article: Serum and saliva immunoglobulin (immunoglobulin G, immunoglobulin A, and immunoglobulin M) dynamics in newborn calves and their association with health status during the first week of life: An exploratory study
Serum and saliva immunoglobulin (immunoglobulin G, immunoglobulin A, and immunoglobulin M) dynamics in newborn calves and their association with health status during the first week of life: An exploratory study Open
The transfer of passive immunity is essential to ensure the health and welfare of newborn calves. Although the dynamics of serum Ig concentrations in these animals are well-described, data about saliva Ig are limited. This study aimed to e…
View article: Transition-metal chalcogenophosphate: An emerging star in photoelectric conversion and storage materials
Transition-metal chalcogenophosphate: An emerging star in photoelectric conversion and storage materials Open
View article: Factors associated with death from COVID-19 in traditional peoples and communities in Brazil
Factors associated with death from COVID-19 in traditional peoples and communities in Brazil Open
Introduction COVID-19 has disproportionately impacted vulnerable populations, including traditional communities in Brazil, who face socioeconomic and health disparities, increasing the risk of severe outcomes. This study aims to identify f…
View article: Morphological Study of Plasma Bubbles Using All‐Sky Airglow Images and Numerical Simulations: Brazilian Sector
Morphological Study of Plasma Bubbles Using All‐Sky Airglow Images and Numerical Simulations: Brazilian Sector Open
This study meticulously examines the morphology of ionospheric plasma depletions, or bubbles, using OI 630 nm airglow all‐sky images captured over three Brazilian observatories: Santarém, Bom Jesus da lapa, and Cariri. The analysis focuses…
View article: Electromagnetic fields modulate neuronal membrane ionic currents through altered cellular calcium homeostasis
Electromagnetic fields modulate neuronal membrane ionic currents through altered cellular calcium homeostasis Open
The biological effects of electromagnetic fields (EMFs) on the central nervous system (CNS) have been widely reported in the literature. Their nature and extent are thought to depend on parameters such as field intensity and frequency. Of …
View article: EVALUATING THE EFFECTIVENESS OF AN INTERNET-BASED TOOL FOR EMOTIONAL ASSESSMENT OF STUDENTS AT A PUBLIC UNIVERSITY IN BRAZIL
EVALUATING THE EFFECTIVENESS OF AN INTERNET-BASED TOOL FOR EMOTIONAL ASSESSMENT OF STUDENTS AT A PUBLIC UNIVERSITY IN BRAZIL Open
University students have a higher prevalence of illnesses that affect their mental health. This leads to a higher risk of dropping out, poor academic performance, drug abuse, difficulties in finding a job after graduation, and suicidal tho…
View article: Is focusing on a single strategy effective during health crises? How the hydroxychloroquine discourse became counterproductive during the COVID-19 pandemic
Is focusing on a single strategy effective during health crises? How the hydroxychloroquine discourse became counterproductive during the COVID-19 pandemic Open
The COVID-19 pandemic provides a compelling case study of the intersection between political rhetoric and scientific discourse during crisis situations. This study examines the controversy surrounding hydroxychloroquine (HCQ) and chloroqui…
View article: Comparative analysis of mortality trends from meningioma across regions of Brazil from 2012 to 2022
Comparative analysis of mortality trends from meningioma across regions of Brazil from 2012 to 2022 Open
View article: Correction: Theory of nanogenerators and Maxwell’s equations for a mechano-driven system
Correction: Theory of nanogenerators and Maxwell’s equations for a mechano-driven system Open
View article: A METODOLOGIA RCM APLICADA COMO ESTRATÉGIA DE MELHORIA DA EFICIÊNCIA OPERACIONAL DE MÁQUINAS AGRÍCOLAS
A METODOLOGIA RCM APLICADA COMO ESTRATÉGIA DE MELHORIA DA EFICIÊNCIA OPERACIONAL DE MÁQUINAS AGRÍCOLAS Open
Este estudo visa responder ao seguinte questionamento: como a aplicação da metodologia da Manutenção Centrada na Confiabilidade pode ser estratégica, no quesito melhoria da eficiência operacional, para o setor de manutenção de máquinas agr…
View article: Progress in Flexible Perovskite Solar Cells: Paving the Way for Scalable Manufacturing
Progress in Flexible Perovskite Solar Cells: Paving the Way for Scalable Manufacturing Open
The urgency for a sustainable mitigation of the environmental impacts caused by climate change highlights the importance of renewable energy technologies to fight this challenge. Perovskite solar cells (PSCs) emerge as a promising alternat…
View article: Strategies to maximize the oxygen evolution reaction in layered double hydroxides by electronic defect engineering
Strategies to maximize the oxygen evolution reaction in layered double hydroxides by electronic defect engineering Open
View article: Covalent Si–S bonding engineering in sulfurized polyacrylonitrile (SPAN): toward enhanced electrochemical stability and kinetics in lithium–sulfur batteries
Covalent Si–S bonding engineering in sulfurized polyacrylonitrile (SPAN): toward enhanced electrochemical stability and kinetics in lithium–sulfur batteries Open
Silicon doping for enhanced Li-SPAN battery performance.
View article: Solar photons beyond the band gap wavelengths: their effect on solution-processed solar cells
Solar photons beyond the band gap wavelengths: their effect on solution-processed solar cells Open
A full-spectrum optical, thermal, and electrical study (∼300–2500 nm) of high-efficiency organic and perovskite single junction and tandem solar cells, reveals how parasitic absorption and conversion losses impact cells’ temperature and pe…
View article: Electrode engineering considerations for high energy efficiency Li–CO<sub>2</sub> batteries
Electrode engineering considerations for high energy efficiency Li–CO<sub>2</sub> batteries Open
3D gas electrodes with ultrafine Pt nanoparticles were fabricated using Joule heating technique. The flexible Pt@GCA electrodes serve as self-supporting cathodes for lithium–carbon dioxide batteries, enabling highly reversible CO 2 convers…
View article: Efficient charge separation at localized 2D ferroelectric domains in perovskite solar cells
Efficient charge separation at localized 2D ferroelectric domains in perovskite solar cells Open
Ferroelectric properties can be utilized for efficient charge carrier separation by spontaneous electric polarization.
View article: Highly efficient organic solar cells enabled by ultraviolet-ozone treated molybdenum oxide hole transport layers
Highly efficient organic solar cells enabled by ultraviolet-ozone treated molybdenum oxide hole transport layers Open
Ultraviolet ozone treatment on MoO x films improves the wettability, charge extraction, efficiency and the stability of organic solar cells.
View article: Improved stability and electronic homogeneity in perovskite solar cells <i>via</i> a nanoengineered buried oxide interlayer
Improved stability and electronic homogeneity in perovskite solar cells <i>via</i> a nanoengineered buried oxide interlayer Open
Alumina nanoparticles enhance perovskite surface electronic homogeneity, bulk electrical conduction, and device stability when used as a surface modifier on hydrophobic self-assembled monolayers, outperforming widely used polyelectrolytes.
View article: Constructing vertically aligned Li<sup>+</sup> transport pathways in a flexible solid polymer composite electrolyte by a soft template approach
Constructing vertically aligned Li<sup>+</sup> transport pathways in a flexible solid polymer composite electrolyte by a soft template approach Open
We first synthesized vertically aligned Li 0.5 La 0.5 TiO 3 (LLTO) nano-arrays via a sol–gel-template method, offering a novel approach to significantly enhance lithium-ion conductivity and stability in composite polymer electrolytes.