ACS Appl Electron Mater
December 2024
Electronics based on natural or degradable materials are a key requirement for next-generation devices, where sustainability, biodegradability, and resource efficiency are essential. In this context, optimizing the molecular chemical structure of organic semiconductor compounds (OSCs) used as active layers is crucial for enhancing the efficiency of these devices, making them competitive with conventional electronics. In this work, honey-gated organic field-effect transistors (HGOFETs) were fabricated using four different perylene derivative films as OSCs, and the impact of the chemical structure of these perylene derivatives on the performance of HGOFETs was investigated.
View Article and Find Full Text PDFBackground: The COVID-19 pandemic affected all medical education because of the suspension of face-to-face learning and stringent protocols. Various methods of teaching were introduced to augment anatomical learning.
Objective: As we enter the transition period and loosening of protocols for face-to-face learning, we want to know if these modes of teaching are still preferred and suitable or the traditional proctor-assisted dissection is preferable among first year medical students.
Background And Objective: The pandemic acted as an accelerator for the development of online teaching formats in anatomy and histology worldwide. The authors introduce a bridging program that reinforces the knowledge and understanding of gross and correlative anatomy and histology acquired in a virtual environment in preparation for its future clinical application. The study aims to evaluate the Learning Enhancement in Anatomy Program (LEAP) conducted among first-year medical students at the College of Medicine, University of the Philippines Manila.
View Article and Find Full Text PDFGrowing demand for pesticides has created an environment prone to deceptive activities, where counterfeit or adulterated pesticide products infiltrate the market, often escaping rapid detection. This situation presents a significant challenge for sensor technology, crucial in identifying authentic pesticides and ensuring agricultural safety practices. Raman spectroscopy emerges as a powerful technique for detecting adulterants.
View Article and Find Full Text PDFPurpose: To verify the ability of pretreatment [F]FDG PET/CT and T1-weighed dynamic contrast-enhanced MRI to predict pathological complete response (pCR) after neoadjuvant chemotherapy (NAC) in breast cancer (BC) patients.
Methods: This retrospective study includes patients with BC of no special type submitted to baseline [F]FDG PET/CT, NAC and surgery. [F]FDG PET-based features reflecting intensity and heterogeneity of tracer uptake were extracted from the primary BC and suspicious axillary lymph nodes (ALN), for comparative analysis related to NAC response (pCR vs.
J Photochem Photobiol B
April 2024
Purpose: To investigate the influence of methylene blue (MB)-mediated antimicrobial photodynamic therapy (aPDT) and calcium hydroxide (CH) medication on the mechanical characteristics, degree of conversion (DC), quantification, and volume of gaps at the adhesive interface of glass fiber posts (GFPs) luted to distinct thirds of root canal dentin. Additionally, the microhardness (MH), elastic modulus (Eit), morphology, and chemical structure of the intraradicular dentin were assessed.
Materials And Methods: 6 experimental groups were formed by sorting 102 bovine incisors.
Bioorg Chem
February 2024
Hormone treatments are frequently associated with cardiovascular diseases and cancers in women. Additionally, the detrimental effects of their presence as contaminants in water remain a concern. The transport of hormones through cell membranes is essential for their biological action, but investigating cell permeability is challenging owing to the experimental difficulty in dealing with whole cells.
View Article and Find Full Text PDFBrazilian green propolis is a well-known product that is consumed globally. Its major component, Artepillin C, showed potential as an antitumor product. This study explored the impact of Artepillin C on fibroblast and glioblastoma cell lines, used as healthy and very aggressive tumor cell lines, respectively.
View Article and Find Full Text PDFObjectives: This study assembled and characterized a dual nanocarrier of chlorhexidine (CHX) and fluconazole (FLZ), and evaluated its antibiofilm and cytotoxic effects.
Methods: CHX and FLZ were added to iron oxide nanoparticles (IONPs) previously coated by chitosan (CS) and characterized by physical-chemical analyses. Biofilms from human saliva supplemented with Candida species were grown (72 h) on glass discs and treated (24 h) with IONPs-CS carrying CHX (at 39, 78, or 156 µg/mL) and FLZ (at 156, 312, or 624 µg/mL) in three growing associations.
Purpose: Few studies have evaluated the influence of antioxidant agents on the optical and mechanical properties of ceramic laminate veneers after dental bleaching. Thus, this in vitro study aimed to evaluate the influence of antioxidant agents on the color stability and mechanical properties, such as nanohardness (HIT), elastic modulus (Eit*), and degree of conversion (DC) of the bonding interface components after dental bleaching in ceramic laminate veneer luting.
Methods And Materials: A total of 143 bovine teeth were distributed into experimental groups, according to the procedure method (unbleached or bleached with Whiteness HP Maxx 35%), antioxidant type (control, 10% ascorbic acid, or 10% α-tocopherol), and luting period (24 hours or 14 days) (n=13).
Despite being an important public health issue, particularly due to rabies, dog bites and associated risk factors have rarely been assessed by health services from a One Health perspective. Accordingly, the present study aimed to assess dog biting and associated demographic and socioeconomic risk factors in Curitiba, the eighth-largest Brazilian city with approximately 1.87 million people, based on the post-exposure prophylaxis (PEP) rabies reports between January/2010 and December/2015.
View Article and Find Full Text PDFThe objective is to assess the performance of seven semiautomatic and two fully automatic segmentation methods on [F]FDG PET/CT lymphoma images and evaluate their influence on tumor quantification. All lymphoma lesions identified in 65 whole-body [F]FDG PET/CT staging images were segmented by two experienced observers using manual and semiautomatic methods. Semiautomatic segmentation using absolute and relative thresholds, k-means and Bayesian clustering, and a self-adaptive configuration (SAC) of k-means and Bayesian was applied.
View Article and Find Full Text PDFLang Speech Hear Serv Sch
January 2023
Purpose: School-age children and adolescents frequently have difficulty developing positive identities around their stuttering. Many students experience both physical and social consequences from stuttering. The great lengths that speakers go to try to hide their stuttering and to speak fluently increase their difficulty.
View Article and Find Full Text PDFAims: Glucocorticoids have adverse side effects that can compromise bone tissue. There is evidence to show that symbiotics and curcumin can prevent bone loss. The aim of this study was to analyze the effects of curcumin and symbiotic to prevent and/or minimize a possible bone impairment in rats submitted to the use of dexamethasone.
View Article and Find Full Text PDFJ Community Psychol
September 2022
Europe is experiencing the greatest humanitarian crisis since the Second World War, which is reflected in an unprecedented influx of refugees into Europe. Against this backdrop, the effective strategies and challenges faced by the programs designed to facilitate the integration of refugees need to be understood. Portugal, together with other countries, has opened its doors to refugees.
View Article and Find Full Text PDFThe early diagnosis of Coronavirus disease (COVID-19) requires either an accurate detection of genetic material or a sensitive detection of viral proteins. In this work, we designed an immunoassay platform for detecting trace levels of SARS-CoV-2 spike (S) protein. It is based on surface-enhanced resonance Raman scattering (SERRS) of methylene blue (MB) adsorbed onto spherical gold nanoparticles (AuNPs) and coated with a 6 nm silica shell.
View Article and Find Full Text PDFPurpose: The purpose of this project was to collect practice-based evidence regarding dosage in speech sound therapy sessions in school-based settings. Dosage is the number of trials within a therapy session for any one particular child. School-based speech-language pathologists (SLPs) face a variety of obstacles to service delivery, often making the implementation of evidence-based practices difficult.
View Article and Find Full Text PDFStuttering has traditionally been thought of as a defect located within an individual. As such, stuttering is caused by pathology, leading to impaired communication and reduced quality of life. Research from this medical tradition has looked to understand the etiology of stuttering to develop curative therapeutic approaches.
View Article and Find Full Text PDFImplant placement is an important repair method in dentistry and orthopedics. Increasing efforts have focused on optimizing the biocompatibility and osseointegration properties of titanium (Ti) and Ti-based alloys. In this work, Ti-based alloys were modified by the layer-by-layer (LbL) technique, which is a simple and versatile method for surface modification.
View Article and Find Full Text PDFPurpose: This article presents several potential concerns with the common usage of the term in the study of and people who stutter (or, as many speakers now prefer, ). Our goal is to bridge gaps between clinicians, researchers, and stutterers to foster a greater sense of collaboration and understanding regarding the words that are used and meanings that are intended.
Method: We begin by reviewing the history of the term .
Background: Lateral column lengthening (LCL) is commonly performed on children and adolescents with cerebral palsy (CP) for correction of pes planovalgus (PPV). There are limited reports of the long-term outcomes of this procedure. The purpose of this study was to examine the long-term results of LCL for correction of PPV in individuals with CP by evaluating subjects when they had transitioned to adulthood and were entering the workforce.
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