Shades of red: A chemical exploration of pigments and dyes in 19th century postage stamps by a multi-analytical methodology.

A total of 57 European, Canadian and North American postage stamps, all in red shades, were analyzed with the main goal of unraveling which pigments or dyes were used to produce the red color in the period dated from 1841 to 1899. Both non-destructive techniques, including X-Ray Fluorescence (XRF), Fiber Optics Reflectance Spectra (FORS), and Steady State Fluorescence Spectroscopy, and destructive methods such as High-Performance Liquid Chromatography coupled with Diode-Array Detection (HPLC-DAD) and Electrospray Ionization High-Resolution Mass Spectrometry (ESI-HRMS), were utilized for a comprehensive analysis. The examined red shades were identified as originating from either a single pigment or dye, or a combination of both.

Enhanced thermal and photo-stability of a -substituted dicumyl ketone intercalated in a layered double hydroxide.

A ketodiacid, 4,4'-dicarboxylate-dicumyl ketone (), has been intercalated into a Zn, Al layered double hydroxide (LDH) by a coprecipitation synthesis strategy. The structure and chemical composition of the resultant hybrid material (LDH-KDA3) were characterized by powder X-ray diffraction (PXRD), FT-IR, FT-Raman and solid-state C{H} NMR spectroscopies, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TGA), and elemental analysis (CHN). PXRD showed that the dicarboxylate guest molecules assembled into a monolayer to give a basal spacing of 18.

Removal of Imidacloprid from Water by Microalgae Nannochloropsis sp. and Its Determination by a Validated RP-HPLC Method.

The large-scale use of pesticides is one of the main causes of the dramatic degradation of our environment. Pesticides such as imidacloprid (IMID) have been linked to declines in bee health and toxicity to other beneficial insects. They pose a threat to human health due to their persistence in the environment and accumulation in the food chain.

Aging, sexuality and nursing care: the elderly woman's look.

Objective: to analyze the perception of elderly women about sexuality and practice of nursing care in this context.

Method: a descriptive qualitative study. Fifty elderly women from Guanambi City - Bahia State were interviewed in 2016.

Pre-emptive Intracoronal Radiolucency in First Permanent Molar.

Pre-eruptive intracoronal radiolucency (PECR) is characterized by the existence of a radiographic radiolucent area inside the coronal dentin prior to dental eruption. It is a rare clinical entity of unknown etiology, usually asymptomatic and diagnosed through routine radiographs. The aim of this article is to report the treatment of a PECR in an 8-year-old girl.

Impact of Temporomandibular Joint Discectomy on Condyle Morphology: An Animal Study.

Purpose: Temporomandibular disorders lead to parafunctional activity that may alter bone remodeling of mandibular components. This animal study aimed to assess the impact of temporomandibular joint discectomy on condylar bone microarchitecture.

Materials And Methods: A total of 30 one-month-old Wistar rats were assessed and divided into 3 equal groups (2 test groups and 1 control group) of 10.

A fatal and metabolic experimental hemorrhagic shock in immature swine.

Purpose: To use blood lactate (BL) as an end-point metabolic marker for the begin resuscitation of volume replacement in experimental hemorrhagic shock.

Methods: Group I (n=7) was not bled (Control). Animals in Group II (n=7) were bled to a MAP of 30mmHg in thirty minutes.

Targeted molecular investigation in patients within the clinical spectrum of Auriculocondylar syndrome.

Auriculocondylar syndrome, mainly characterized by micrognathia, small mandibular condyle, and question mark ears, is a rare disease segregating in an autosomal dominant pattern in the majority of the families reported in the literature. So far, pathogenic variants in PLCB4, GNAI3, and EDN1 have been associated with this syndrome. It is caused by a developmental abnormality of the first and second pharyngeal arches and it is associated with great inter- and intra-familial clinical variability, with some patients not presenting the typical phenotype of the syndrome.

Characterization of chronic pain in breast cancer survivors using the McGill Pain Questionnaire.

The aim of the present study was to characterize pain in breast cancer survivors using the McGill Pain Questionnaire (MPQ). A descriptive, cross-sectional study was conducted with 30 women aged 30-80 years who had been submitted to treatment for breast cancer (surgery and complementary treatment) at least 12 months earlier with reports of pain related to the therapeutic procedures. Pain was characterized using the full-length version of the MPQ, which is made up of 78 descriptors divided into four categories: sensory (ten items), affective (five items), evaluative (one item) and miscellaneous (four items).

Rare Variants in the Epithelial Cadherin Gene Underlying the Genetic Etiology of Nonsyndromic Cleft Lip with or without Cleft Palate.

Nonsyndromic orofacial cleft (NSOFC) is a complex disease of still unclear genetic etiology. To investigate the contribution of rare epithelial cadherin (CDH1) gene variants to NSOFC, we target sequenced 221 probands. Candidate variants were evaluated via in vitro, in silico, or segregation analyses.

Clarifying the effect of behavioral and clinical factors on traumatic dental injuries in childhood: a hierarchical approach.

Aim: To explore associations between traumatic dental injuries (TDI) in Brazilian preschool children and clinical, behavioral, and socio-demographic factors using a hierarchical approach.

Material And Methods: A cross-sectional study was conducted involving 1316 children aged 0-5 years at public preschools in the city of Canoas (southern Brazil). Demographic (sex and age), socioeconomic (mother's schooling, income and family structure) and behavioral (use of pacifier, breastfeeding duration and bottle use at 12 months) factors were collected through a questionnaire.

Barriers for the inclusion of sexuality in nursing care for women with gynecological and breast cancer: perspective of professionals.

Aim: qualitative study, which aimed to identify the barriers that influence nursing care practices related to the sexuality of women with gynecological and breast cancer.

Methods: the study was conducted with 16 professionals of the nursing area (nurses, nursing technicians and nursing assistants) from two sectors of a university hospital situated in the state of São Paulo, Brazil. The data was collected using semi-structured, in-depth individual interviews.

Unveiling privacy: advances in microtomography of coralline algae.

Marine calcareous algae are widespread in oceans of the world and known for their calcified cell walls and the generation of rhodolith beds that turn sandy bottoms into a complex structured ecosystem with high biodiversity. Rhodoliths are unattached, branching, crustose benthic marine red algae; they provide habitat for a rich variety of marine invertebrates. The resultant excavation is relevant to sediment production, while is common that the fragments or the whole specimens result in vast fossil deposits formed by rich material that can be "mined" for biological and geological data.

c.G2114A MYH9 mutation (DFNA17) causes non-syndromic autosomal dominant hearing loss in a Brazilian family.

We studied a family presenting 10 individuals affected by autosomal dominant deafness in all frequencies and three individuals affected by high frequency hearing loss. Genomic scanning using the 50k Affymetrix microarray technology yielded a Lod Score of 2.1 in chromosome 14 and a Lod Score of 1.

Gains in children's dental health differ by socioeconomic position: evidence of widening inequalities in southern Brazil.

Unlabelled: Oral health inequalities are the measures by which equity in oral health is tracked. Despite widespread improvement in children's dental health globally, substantial socio-economic disparities persist and may be worsening.

Objectives: Quantify 10-year changes in child caries occurrence by socio-economic position in a Southern Brazilian city and compare oral health inequalities over time.

Susceptibility to DNA damage as a molecular mechanism for non-syndromic cleft lip and palate.

Non-syndromic cleft lip/palate (NSCL/P) is a complex, frequent congenital malformation, determined by the interplay between genetic and environmental factors during embryonic development. Previous findings have appointed an aetiological overlap between NSCL/P and cancer, and alterations in similar biological pathways may underpin both conditions. Here, using a combination of transcriptomic profiling and functional approaches, we report that NSCL/P dental pulp stem cells exhibit dysregulation of a co-expressed gene network mainly associated with DNA double-strand break repair and cell cycle control (p = 2.

Exploring the impact of oral diseases and disorders on quality of life of preschool children.

Objective: To assess the impact of oral health outcomes on Oral Health-Related Quality of Life (OHRQoL) in a school-based sample of Brazilian preschool children and their families.

Methods: A cross-sectional study was conducted in 1036 children aged 2-5 years attending all the public nurseries in Canoas, Brazil. Caregivers were asked to complete questionnaire on socioeconomic status and the Early Childhood Oral Health Impact Scale (ECOHIS) on their perception of the children's OHRQoL.

Association between occlusal anomalies and dental caries in 3- to 5 year-old Brazilian children.

Objective: To investigate the association between certain occlusal anomalies and the occurrence and severity of dental caries in Brazilian preschool children.

Design: Cross-sectional study.

Setting: Twenty-eight public nursery schools in Canoas, southern Brazil.

Natal primary molar: clinical and histological aspects.

The authors report a case of natal primary molar in a healthy 14-day-old child. The diagnosis of the case and the treatment plan are discussed, as well as histological analyses of the natal tooth. The tooth presented an immature appearance, with high mobility and insertion only in soft tissue, and therefore the clinical option adopted was dental extraction.

Exploring factors associated with traumatic dental injuries in preschool children: a Poisson regression analysis.

Objective: This cross-sectional study aimed to investigate the factors associated with dental trauma in preschool children using Poisson regression analysis with robust variance.

Subjects And Methods: The study population comprised 888 children aged 3- to 5-year-old attending public nurseries in Canoas, southern Brazil. Questionnaires assessing information related to the independent variables (age, gender, race, mother's educational level and family income) were completed by the parents.

Clinical performance of ART restorations in primary teeth: a survival analysis.

Objective: To assess the survival of Atraumatic Restorative Treatment (ART) restorations in primary teeth performed in a dental clinical setting.

Study Design: One hundred and five single-surface ART restorations placed in 56 preschool children (mean age 31 months) were included. Final-year dental students performed the restorations using standard ART procedures with hand instruments.

Dental anomalies and associated factors in 2- to 5-year-old Brazilian children.

Background: Dental anomalies in primary teeth may lead to functional and aesthetic disorders, and their recognition contributes to early diagnosis and long-term treatment planning.

Objective: This study investigated the prevalence of dental anomalies in primary dentition and associated factors in Brazilian preschoolers.

Methods: The study population of this cross-sectional study comprised 1260 2- to 5-year-old children from public nurseries in Canoas, southern Brazil.

[Use of dental services by preschool children in Canela, Rio Grande do Sul State, Brazil].

The aim of this study was to assess the use of dental services and age at first dental visit in preschool children in Canela, Rio Grande do Sul State, Brazil. A representative sample of under-five children was surveyed on National Children's Vaccination Day. Children's parents completed questionnaires containing socio-demographic data and age at first dental visit.